Yearly Archive October 14, 2020

1. The machine bed forward and backward, beam up and down, vertical milling head up and down are equipped with Taiwan ball screw, driven by servo motor.
2. Unique cross beam lifting safety interlock device, grinder processing to ensure the repeated positioning accuracy of the machine tool.
3. The side milling head is equipped with V5 type gantry milling head. The computer gong processing is equipped with independent lubrication device. The lifting is driven by ordinary reducer and frequency conversion speed regulation.
4. The vertical milling head of gantry precision grinder is equipped with tx400 heavy gantry milling head, double rectangular guide rail, strong rigidity; the milling head is equipped with ball screw, pneumatic broach device, driven by servo motor.
5. The three-axis CNC system of general milling / CNC milling with one key conversion for gantry precision grinder is not only programmable, but also can be operated manually by using the extended panel. It is very practical in the actual machining process.

Do not cut off the connection of protective devices when repairing the electrical equipment of large water mill.

Electrical maintenance personnel shall wear insulating gloves and rubber shoes during maintenance to avoid electric accidents. And do not wear metal jewelry and other conductive articles that may cause electric shock.

Before overhauling electrical equipment, it is necessary to follow the instructions of relevant warning nameplates and use appropriate three-way ammeter to determine that the circuit is in open circuit state.

The main power switch should be cut off and warning signs should be set up to avoid accidental injury caused by reactivating the large water mill without knowing it.

When the motor is activated, sparks may be generated at the contact point of the electrical box. Therefore, the machine can not be used in dust, gas explosion and flammable places.

The electric box of large water mill is designed to provide safe operation of the machine. No one is allowed to modify the structure and circuit design of this electrical box without the authorization of our company.

The operator must be familiar with the position of emergency stop switch and main power activation switch of large water mill. In case of emergency, the machine can be stopped and the power supply can be cut off as soon as possible. Process specification is one of the process documents that stipulate the machining process and operation method of parts. Under specific production conditions, the more reasonable technological process and operation method are written into the process in accordance with the prescribed form; the large-scale CNC machining center for gongs processing is a kind of tool library with automatic tool change, and the workpiece can be in a certain degree CNC machine tools for various processing operations within the scope.

Because the machining center can finish many kinds of working procedures in a centralized and automatic way, it can avoid the artificial operation error, reduce the time of workpiece clamping, measuring and machine tool adjustment, as well as the time of workpiece turnover, handling and storage, and greatly improve the processing efficiency and accuracy, so it has good economic benefits. Machining center can be divided into vertical machining center and horizontal machining center according to the position of spindle in space.

Large computer gong machining centers are usually classified into horizontal, vertical and multi axis linkage machining centers according to the relative position of the spindle and the worktable.

A horizontal machining center: it refers to the machining center with the spindle axis parallel to the worktable, which is mainly suitable for processing box type parts.

B vertical machining center: it refers to the machining center with the spindle axis perpendicular to the worktable. It is mainly used for processing complex parts such as plates, plates, molds and small shells. C multi axis linkage machining center, also known as universal machining center, refers to the machining center which can control the linkage change through the angle between the spindle axis and the rotary axis of the worktable to complete the machining of complex spatial curved surface. It is suitable for machining impeller rotor, mould, cutting tool and other workpieces with complex space curved surface.

After the workpiece is clamped once, the CNC system can control the machine tool to automatically select and change the tool according to different working procedures; it can automatically change the spindle speed, feed rate of Dongguan CNC machining center, the motion path of the cutter relative to the workpiece and other auxiliary functions, and automatically carry out multiple processes such as drilling, countersinking, reaming, boring, tapping, milling and so on Processing.

Because the early milling machine numerical control system does not have the function operation function, the processing program of function equation curve cannot be compiled directly by G code, (the lower version) CAD / CAM software usually does not have the function of directly inputting graph from equation, so it is very difficult to process function equation curve contour.

The programming method of machining center: the contour composed of simple contour line and arc is directly programmed with G code of NC system. The complex profile of 3D surface is drawn by CAD / CAM in the computer, and the corresponding parameters are set according to the surface type, and the NC machining program is generated automatically. The above two programming methods can basically meet the requirements of NC machining.

The process of large-scale mechanical parts processing plant is to change the shape, size, relative position and nature of the production object to make it into finished or semi-finished products on the basis of the process. It is the detailed description of each step and process. For example, as mentioned above, rough machining may include blank manufacturing, grinding, etc. mechanical precision parts processing may be divided into turning, fitter, milling machine, And so on, as much as the tolerance of each step has to be achieved.

What are the technical requirements for large-scale machining?

Only by complying with these technical requirements can the finished products of large-scale machining be more standardized and reasonable. In large-scale machining, what are the technical requirements to be observed?

The specific technical requirements are as follows:

(1) Remove oxide scale from parts.

(2) Undeclared shape tolerance shall conform to GB118

报错 笔记双语对照
排序
重点词汇
重点词汇
伺服电机 【计】servo motor
连锁装置 interlock ; interlocking device
润滑装置 lubricating arrangement

Vertical machining center: it is called computer gong in Hong Kong, Taiwan and Guangdong. It is a highly automatic multi-functional CNC machine tool with tool magazine and automatic tool changing device. The first machining center appeared in the United States in 1958. It can realize the centralized processing of milling, drilling, boring, reaming, tapping and other processes after the workpiece is clamped at one time, with special emphasis on “milling”.

Engraving machine: its spindle speed is high, suitable for small cutting tools processing, torque is relatively small, focusing on the “carving” function, such as wood (wood carving machine for special processing of wood), dual color board, acrylic plate and other plates with low hardness, which are not suitable for large workpieces with strong cutting. At present, most of the products on the market with the banner of engraving machine are mainly for processing handicrafts with low cost. Due to the low precision, they are not suitable for mold development. However, there are also exceptions, such as wafer engraving machine.

Engraving and milling machine: it can be carved or milled. On the basis of engraving machine, the power of spindle and servo motor is increased, and the bearing force of lathe bed is maintained. At the same time, the high speed of spindle is maintained. More importantly, the precision is very high. Engraving and milling machine also to high-speed development, commonly known as high-speed machine, cutting ability is stronger, processing accuracy is very high, but also can directly process hardness above HRC60 materials, one-time molding. Vertical machining center refers to the machining center with the spindle axis perpendicular to the worktable. It is mainly used to process complex parts such as plates, plates, molds and small shells. Vertical machining center can complete milling, boring, drilling, tapping and thread cutting. Vertical machining center is at least three axis and two linkage, generally can achieve three axis and three linkage. Some can be controlled by five or six axes.

The disadvantage of vertical machining center is to reduce the height of vertical machining center. However, the vertical machining center is convenient for workpiece clamping and positioning; the movement track of the cutting tool is easy to observe, the debugging program is convenient to check and measure, problems can be found in time, and the machine can be stopped or modified; the cooling conditions are easy to establish, and the cutting fluid can directly reach the cutting tool and the machining surface; the three coordinate axes are consistent with the Cartesian coordinate system, which makes it intuitive and consistent with the drawing perspective, and the chip is easy to be removed and dropped, Avoid scratching the machined surface. Compared with the corresponding horizontal machining center, the structure is simple, the floor area is small and the price is low.

Vertical machining center is a highly automatic multi-functional CNC machine tool with tool magazine and automatic tool changing device, which is based on CNC control unit. It communicates with the servo system to control the operation of servo motors of several shafts, so as to achieve the cutting movement of each axis. The machine tool is composed of bed, slide plate, worktable, column, electrical cabinet, tool magazine, oil mist lubrication unit of spindle, chip conveyor, etc.

There are two kinds of tool changing methods in vertical machining center: manipulator tool changing mode and direct tool changing mode. Many reasons can cause the tool magazine can not grasp or change the tool correctly, summed up as follows 7 points.

1. Caused by electromagnetic valve or magnetic induction switch of tool magazine

Vmc750 vertical machining center adopts direct tool changing mode, and the action of tool magazine includes swing and rotation. A three position five way solenoid valve is used to control the cylinder to drive the magazine to swing, and a single-phase magazine motor is used to realize the rotation of the magazine. There is a progressive switch in the magazine for counting. When changing the tool, the tool magazine should first be placed at the spindle position, and the original tool should be put back into the tool sleeve, and then the tool magazine should be rotated to find the next tool and grasp it again. The position and position of the main shaft of the tool magazine are judged by two magnetic switches on the cylinder of the tool magazine. When the solenoid valve and magnetic switch fail and alarm [39-12], the tool magazine is not set to the spindle position within the specified time; when [39-15], the tool magazine is not put to the original position within the specified time. At this time, it is necessary to check whether the solenoid valve acts. If the swing tool magazine can not hear the action sound of the solenoid valve, it is necessary to manually check the quality of the valve (at this time, it is better to disconnect the output end of the valve), and if it is broken, replace it.

1. Three switch values in the headstock are incorrect

Whether the spindle state is correct or not is judged by the three progressive switches in the spindle box (sq7 clamping switch, SQ8 release switch, sq9 knife free switch). The three switches are distributed in a triangle and sense the different parts of the loose broach cylinder. The correct position switch value should be as follows: (1) normal no knife: sq9 and sq7 lights are on; (2) normal knife is on: only sq7 light is on; (3) press release button: only SQ8 light is on. Generally, the three switches are not in correct state. The alarm code is [39-4]: pull rod failure; [39-13]: pull rod loosening fault; [39-14]: pull rod clamping fault; [39-34]: the tool is not clamped. These alarms are related to the three progressive switches. It is necessary to check whether the switch is good or not, and adjust it to the appropriate position to make the switch value indication correct.

1. Caused by damage of photohazard board

If the valve is correct, check the status of I / O switch value: whether the signal of spindle position slidrum spdl000:00 / 15 or original position slidrum park000:00 / 16 has been given. Check whether the corresponding 24 V level signal on the optical hazard board, the fuse on the board and the 110V voltage of the signal coming from the optical hazard board are sent to the solenoid valve. The fault point can be found out by checking the signal voltage all the way. Vertical CNC machine tools are usually more likely to damage the safety tube and optical tube. It is good to buy the same glass fuse or optical tube to replace it.

1. Mechanical jamming

If the handle is stuck, press the release button to hear the cylinder pressing down, but the knife will not come off. This is due to the fact that the handle is rusty due to no attention to maintenance

The development of China’s precision manufacturing industry is still relatively fast, but there is still a distance between China and developed countries. Manufacturing enterprises like spiral bevel gear are mainly small enterprises, without brand, it is difficult to compete with developed countries.

At present, China’s spiral bevel gear industry is still dominated by the expansion of quantity, which has formed excessive competition in the international market at the unified level. To change this development mode, we should adhere to the concept of innovation, innovate in the development and technical transformation of spiral bevel gear, and actively cooperate with scientific research institutions and colleges and universities to jointly develop new spiral bevel gear projects and strive to develop them In order to improve the status of spiral bevel gear wholesale in the global industrial division of labor, improve the anti risk ability and self bargaining ability, and enhance the sustainable development competitiveness of spiral bevel gear industry. China’s market has been eroded by the world spiral bevel gear industry. In order to have a long-term development of spiral bevel gear industry in China, it is necessary to adjust and optimize the industrial structure. We should not only inherit and give full play to the advantages of traditional spiral bevel gear industry, but also make great efforts to develop knowledge and technology intensive industries and emerging industries to promote the development of spiral bevel gear industry.

If China’s spiral bevel gear industry wants to improve its competitiveness and gain a place in the international competition, it is necessary to reasonably analyze the current situation and take measures to deal with the problems. We should not lose the traditional development advantages, but also combine the new knowledge and skills to improve the innovation ability, so as to promote the spiral bevel gear industry to enter a new stage, with a breakthrough development.

Although the gear industry is developing rapidly and there are more and more types, such as reducer spiral bevel gear, spiral bevel gear and so on, there are not many manufacturers specializing in gear mold, most of which are made by gear factory themselves, especially plastic gear in gear industry.

In terms of plastic gears, generally speaking, plastic gears and their molds are mainly distributed in two regions: Ningbo, Zhejiang Province, where there are more than 340 plastic gear factories, which is also the largest plastic gear mold production base in China; the other is Shenzhen Bao’an, which is dominated by Hong Kong funded enterprises with high product precision, which is mainly used for export. Among them, the demand for plastic gear mold is relatively large.

Throughout the current situation of gear mould in China, it can be said that there are mixed feelings. Fortunately, gear mold production has a certain foundation, and the development trend of plastic gear will bring more market space for gear mold; The worry is that there is still a gap between the level of domestic gear mould production and that of the world’s predecessors. Moreover, with the development trend of the gear industry, especially the plastic gear industry, the domestic response to market changes is not sharp enough, and the supporting research is difficult to keep up with the market demand. At present, medium and low-grade gear molds can be produced at home, and high-grade gear molds are mostly imported. The application scope of domestic gear mold can be roughly divided into three aspects: plastic gear mold, powder metallurgy gear mold and precision forging bevel gear mold.

It can be seen that there is still a large space for the development of China’s gear industry. Our company specializes in the production of spiral bevel gears and other products. The advanced equipment and technology ensure the quality of the products, which has been recognized by customers.

In bevel gear, according to the tooth length direction of the tooth, there are spur gear and curve gear. The straight bevel gear is formed by the intersection line of tooth length profile and pitch cone surface. If it is a curve, it is called curve gear.

At present, spiral bevel gear should be synonymous with curved bevel gear. According to the different curves, there are three kinds of spiral bevel gears, which belong to different companies. The hypoid gears (including circular arc bevel gears) designed by Gleason company of the United States, extended epicycloid gears of olicon company of Switzerland and quasi involute gears of Klingenberg of Germany.

In short, the Japanese and American car series are equipped with Gleason gears such as Buick and Toyota. European car lines such as Benz, BMW and Audi use orikon gear.

Spiral bevel gear is a kind of transmission parts with stable transmission ratio and low noise. It has different names in different areas, and is also called spiral bevel gear, spiral bevel gear, spiral bevel gear, circular arc bevel gear, spiral bevel gear, etc. Spiral bevel gear has high transmission efficiency, stable transmission ratio, large arc overlap coefficient, high bearing capacity, smooth transmission, reliable operation, compact structure, energy saving and material saving, space saving, wear resistance, long service life and low noise. Among all kinds of mechanical transmission, the transmission efficiency of spiral bevel gear is the highest, which has great economic benefits for all kinds of transmission, especially for high-power transmission; The transmission ratio of spiral bevel gear is always stable, which is often the basic requirement of transmission performance in the transmission of various mechanical equipment; the spiral bevel gear works reliably and has long service life.

Several tooth systems, characteristics and application fields of bevel gears

Bevel gear and hypoid gear are the type of gear transmission with intersecting shaft and staggered shaft respectively. But according to the characteristics of the tooth length curve, the form of the tooth height and the processing method, there are various classifications. Because the tooth length curve has a great influence on the transmission performance and special processing method is used, it is generally classified according to the tooth length curve.

Straight bevel gear: the tooth length direction of the tooth is straight line, and its extension line intersects the apex of the cone and the retraction tooth

When the material is formed by stamping, it hardens. The hardening degree of different steels is different. Generally, the increase of 3 Ksi of high strength low alloy steel is less than 10%. Note: the yield strength of dual phase steel increases by more than 40% by 20ksi! During the forming process, the metal will become completely different, completely unlike before the stamping process begins. The yield strength of these steels increases a lot after being stressed. The higher yield stress and work hardening of the materials processed by CNC lathe are equal to the great increase of flow stress. —-This results in the need for more tonnage to make parts – it increases the deformation temperature of the metal (which may burn or destroy improper lubricants), hard spots increase die wear – and the coating may not help or last as long as expected. To sum up, the high pressure requirements of high strength steel forming, the increase of springback, the increase of processing hardness and the operation under high forming temperature pose challenges to the die and lubrication.

In the past, in the production of deep drawing or re punching parts, everyone thought that pressure resistant (EP) lubricating oil was the best choice to protect the mold. Sulfur and chlorine EP additives have been mixed into pure oil to improve mold life for a long time. However, with the emergence of new metal high strength steel and strict environmental protection requirements, the value of EP oil-based lubricating oil has decreased or even lost its market.

What are the characteristics and functions of CNC lathe precision machining? It is an automatic machine tool controlled by program. The control system can logically process the program with control code or other symbol instructions, and decode it by computer, so that the machine tool can perform the prescribed action, and the blank can be processed into semi-finished products by cutting tool.

Traditional mechanical lathe processing is manual operation of ordinary machine tools. When lathe processing, the machine tool is shaken by hand to cut metal, and caliper and other tools are used to measure the accuracy of products. Modern industry has long been using computer digital control machine tools for operation, and any products and parts can be processed directly according to the program prepared by technicians in advance.

The information is stored on the information carrier (such as magnetic disk, perforated paper tape, magnetic tape, etc.) in a certain format, and then read in by the CNC system on the machine tool (or input directly through the keyboard of the CNC system, or through the communication mode). By decoding the information, the lathe can process the action and parts, and the modern CNC machine tool can process parts It is a typical product of mechatronics and the technical foundation of new generation production technology and computer integrated manufacturing system.

The development trend of modern CNC lathe precision machining is high speed, high precision, high reliability, multi-function, compound, intelligent and open structure. The main development trend is to research and develop intelligent full-function universal CNC device with open structure in both software and hardware. CNC technology is the foundation of machining automation and the core technology of CNC machine tools. Its level is related to the national strategic position and the level of national comprehensive strength. It develops with the development of information technology, microelectronics technology, automation technology and detection technology. CNC lathe precision machining is a kind of CNC machine tool with tool library and automatic tool change, which can carry out a variety of processing operations on the workpiece in a certain range.

CNC lathe precision machining is the use of CNC technology to control machining machine tools, or equipped with CNC system. Computer gong processing uses CNC machine tools to process mechanical parts, known as CNC processing. NC machining is different from ordinary machine tools. CNC machining needs control information, such as tool feeding, the sequence of various actions, and various auxiliary functions (such as soil shaft speed, speed, tool change, coolant switch, etc.), etc. the program is stored in the control in digital form, and the automatic machining machine tool is realized through digital control device.

CNC lathe precision machining is an efficient automation tool. Dongguan CNC machining center is a typical electromechanical product, which can realize high-speed machining, high precision and high degree of automation. Mechanical parts processing is an important difference from other types of automatic machine tools: CNC machine tools use flexible automation technology, that is, when the processing object changes, in addition to clamping parts and replacement tools, only need to change the processing program can automatically find out new parts, without changing other hardware equipment.

Aluminum oxidation does have an impact on the accuracy of mechanical parts, because oxidation is a chemical treatment, which can modify the surface of aluminum and improve the hardness of mechanical parts. This is also chemical coating technology!

How to control the accuracy of mechanical parts in the process of aluminum oxidation treatment? If there is a precision request for the thickness process dimension of fine mechanical parts, the process size or negative difference dimension of the machined parts can be increased according to the accurate size after oxidation treatment, so as to ensure that the fine and dense machined parts meet the process requirements on the drawing after the oxygenation treatment. In the machining process of mechanical parts, not only the paper size thickness has precision, but also the size request of fine hole, step, hole to edge, etc., which is the same as the processing method of thickness request.

Aluminum oxidation has an impact on the accuracy of mechanical parts, but it can be controlled in the machining process of mechanical parts, which can ensure and meet the process requirements on customer drawings!

The products manufactured by Kexiong company mainly serve the industries of machinery, electronics, automatic assembly line, communication, mould, medical treatment, automatic special production equipment, etc. At the same time, he has rich experience in the processing of various materials, such as Al6061 / 7075, sus303 / 304, esd225 / 420, Derlin, s136h, ss440c, 17-4PH, ceramic, carbide, engineering plastics peek, etc. In addition, we can also provide customers with some special processing, special heat treatment and special electroplating, surface treatment, such as optical grinding, boring and grinding, precision EDM special-shaped processing, carburizing, nitriding, vacuum heat treatment, ultra-low temperature treatment, hard oxidation of aluminum parts, bluing of steel parts, electrolytic polishing, Electroless nickel plating, silver plating, gold plating, etc.

The content of mold precision includes four aspects: dimensional accuracy, shape accuracy, position accuracy and appearance accuracy. Because of the working time of the mold, the upper and lower die position accuracy is the most important among the four kinds of precision.

3。 Mold precision is to serve the accuracy of products, high-precision products must be guaranteed by higher precision molds, mold accuracy generally must be higher than the product accuracy of 2 or more levels.

Methods of improving die precision

1。 The precision guarantee of mould processing equipment

2。 Precision requirements of parts in mould manufacturing

①。 Die material accuracy requirements

The processing tolerance of die steel should be controlled within 300×300 + 0.005-0 ± 0.005300×500 + 0.01-0 ± 0.01500×800 + 0.01-0.01 ± 0.015800×1200 + 0.02-0.02 ± 0.02. Precision requirements of die parts a. Misumi guide pillar and guide sleeve series are used for guiding parts affecting die precision, and the ultra precision tolerance can be controlled within 0.002mm.

b。 The edge forming punch is made of Misumi standard material: SKD-11, hardness: 60-62hrc, and the edge shape is: dregth, which is usually used to form the inner hole or cylinder shape of products. The precision of punching needle can be controlled within ± 0.01mm, and it can be about 2um for special requirements, and keep mirror like.

3。 The size of die gap is the main basis of die design and manufacturing accuracy. In order to ensure the accuracy of product size and shape position, as well as the product quality (such as the cross-section quality and burr height), the gap between the concave and convex dies must be ensured.

4。 The requirements of die construction precision are as follows. Luo Baihui said that from the perspective of processing and assembly, the accuracy of mold base mainly includes the following aspects: a. Consistency of plane size of upper and lower formwork and position of guide hole; B. Flatness and parallelism of large plane of formwork; C. The perpendicularity of the guide hole to the large plane; D. Perpendicularity between adjacent sides of formwork; e. The fitting accuracy between guide pillar and guide sleeve.

The main methods to ensure the accuracy of mold base are as follows:

a。 The one-time processing method is that after the large plane processing of the template is completed, the upper and lower templates are clamped together, and the plane dimensions and guide holes of two templates are processed at one time.

b。 One of the four guide holes is deviated from the symmetrical position to ensure the assembly orientation of the die.

c。 Datum is used to calibrate the table.

d。 Guide pillar and guide sleeve with high matching precision are adopted.

e。 Improve the machining accuracy of parts.

②。 The guarantee of punch accuracy is that, from the perspective of machining and assembly, punch accuracy mainly includes: a. The accuracy of shape and dimension of punch; B. Perpendicularity between adjacent sides of punch.

③。 From the perspective of processing and assembly, the accuracy of female die mainly includes: a. The accuracy of the shape and dimension of the die; B. Perpendicularity between adjacent sides of die; C. Perpendicularity of die side to large plane; D. Position degree of die.

5。 The precision of forming process ensures that in the process of forming structure, the coordinate processing method is adopted whether it is processed by computer gong, EDM, WEDM or ordinary milling machine. The guarantee of the accuracy mainly depends on the accuracy of the machine tool and the accuracy of the operator’s calibration table and score. It is considered that the concept of die precision should also run through the whole process of mold design and manufacturing, just as the guiding principle and guiding ideology of establishing enterprise product quality assurance and management system. In order to ensure the accuracy requirements of the closed ring of the die assembly dimension chain, strict restraint and management must be carried out on the key links and key factors affecting the mold accuracy in the process of mold manufacturing, outsourcing (including materials and standard parts) and the whole process of mold assembly, mold test, acceptance, packaging and transportation.

The gap between most domestic tool enterprises and international first-line tool brands in the aspect of hard bit mainly lies in design concept, manufacturing details, material selection and coating treatment. The specific products with the biggest performance gap between domestic and foreign drill bits are: drill bits for processing steel parts, deep hole twist drills for replacing gun drills, and bits for processing materials such as superalloy and high hardness steel. In these fields, only a few domestic enterprises have mastered the design and manufacturing technology. The present situation of solid end mills can be divided into general type and high-end type. Generally speaking, the technical difficulty of universal end milling cutter is relatively small, and the gap between product quality and foreign countries is not very big. In fact, most of China’s cemented carbide tool enterprises, including private cutter enterprises, state-owned tool factories and Taiwan knife enterprises in mainland China, mainly produce solid end mills. Domestic end mills occupy most of the middle and low-end markets in China with low prices, and the competition is very fierce.

However, in some high-end manufacturing fields such as difficult machining and high-speed milling, there is still a certain gap between the quality of China’s solid end mills and the world’s first-line brand cutters, such as milling cutters for high-hardness materials, high-speed milling cutters, titanium alloy milling cutters, graphite milling cutters, aviation fusion material milling cutters, precision milling cutters, etc. These end mills have high added value, and the main market share is occupied by foreign manufacturers, such as Sandvik, Kenner, Daijie, Hitachi, frasa, prototyp, SGS, jabro, OSG, Hanita, LMT, etc.

According to the incomplete survey, there is about 1.5 billion yuan demand for high-end end end mills in the Chinese market in 2010, and the localization rate is close to 30%. The challenges and necessary improvements are as follows: mechanical and structural characteristics: hardness, strength, wear resistance; thermal and chemical characteristics: heat resistance, insulation, catalysis; biological characteristics: adaptability and insecticidal characteristics; electronic and optical characteristics: reflection, transparency, etc.

High speed steel tools, cemented carbide tools, cermet tools and PCD / PCBN superhard tools are commonly used in the Chinese market. High speed steel tools, except for complex forming tools, blade root milling cutters, gear hobs, Broaches and taps, are mostly low-end tools with large quantity and low value. With the rapid upgrading of China’s manufacturing industry, the continuous promotion of excellent cutting technology and cemented carbide tools, the domestic market of high-speed steel tools is shrinking, and its share is less than 60%; cermet maintains an advantage in the precision turning of steel and cast iron, and its market share is about 2%; Ceramic cutting tools are widely used in high-speed milling, especially in the field of aviation difficult to machine materials, accounting for about 1% of the market share; the market share of superhard materials PCD / PCBN is about 2%, mainly concentrated in the processing of non-ferrous metals and ferrous metals.

The present situation of the whole hard drill bit is the molding processing under the condition of poor cooling and chip removal, with high technical requirements, so the added value of bit products is also high. The products of high-end hard bits are mainly used in automobile, aviation, engineering machinery, high-speed railway, power equipment, power equipment, refrigeration equipment and other high-end precision machining fields.

At present, the common high-end hard bits in the Chinese market mainly come from developed countries such as Europe, the United States and Japan, such as Sandvik, Kenner, cobalt collar, Titex, mapa, Mitsubishi, Sumitomo and eurojet from Japan. According to Luo Baihui, Secretary General of the International Mould Association, most of these enterprises have a large stock of standard bits in Singapore or mainland China, and some non-standard bits are also produced in China. The quality of drill bit products in South Korea and Taiwan is not strong, so it is rare in the market.

“In recent years, Ti, Al coated cemented carbide tools have dominated the high-performance tool market. The high demand for machining machine parts in some special applications promotes the development of special or accurate coatings. ” Luo Baihui, Secretary General of the International Mould Association, pointed out that we must face up to the gap between Chinese cutting tool enterprises and foreign enterprises, including basic technology, innovation ability, promotion ability and service ability. We should let users’ demand and cutting tool enterprises become the leading enterprises, and leading enterprises should take the lead in the field of technology application.

Contact with the mechanical processing industry for many years, many customers have consulted the same problem. In the process of aluminum oxidation treatment, whether there is a definite impact on the accuracy of mechanical parts? Whenever the customer mentions this problem, we will inform the customer in detail. Aluminum oxidation does have an impact on the accuracy of mechanical parts, because oxidation is a chemical treatment, which can modify the surface of aluminum and improve the hardness of mechanical parts. This is also chemical coating technology!

How to control the accuracy of mechanical parts in the process of aluminum oxidation treatment? If there is a precision request for the thickness process dimension of fine mechanical parts, the process size or negative difference dimension of the machined parts can be increased according to the accurate size after oxidation treatment, so as to ensure that the fine and dense machined parts meet the process requirements on the drawing after the oxygenation treatment. In the machining process of mechanical parts, not only the paper size thickness has precision, but also the size request of fine hole, step, hole to edge, etc., which is the same as the processing method of thickness request.

Aluminum oxidation has an impact on the accuracy of mechanical parts, but it can be controlled in the machining process of mechanical parts, which can ensure and meet the process requirements on customer drawings!

The main service scope of the products is machinery, electronics, automatic assembly line, communication, mold, medical, automation special production equipment and other industries. At the same time, all kinds of materials are processed

Skill 1:

The main shaft of CNC engraving machine, as a focus part, is mainly due to rust and blockage, which will cause the machine can not operate normally. The reason is that when we are in bad luck, the coolant in the coolant pipe is still left in it. In addition, the water also contains a large amount of elements. After high temperature, heavy water will gradually form. Heavy water contains a lot of impurities and precipitates After coming down, it will form dirt and form rust and blockage.

Therefore, the surface of motorized spindle should be coated with antirust oil and the cooling water should be changed regularly. And to prevent water temperature too high, but also to ensure the cleanliness of cooling water, if allowed, in case of spindle blockage.

Skill 2:

If the cooling system of the engraving machine is not grounded, the success rate will drop, the cold water head will fall off, and the service life will be greatly reduced. If the environment is severe, even the equipment deployment can not start things. In order to prevent such problems, we have to wash water tanks and waterways frequently, and control the temperature control points of temperature controlled water tanks fairly.

Skill 3:

If the fans and air ducts are not cleaned up, many smoke and dust inside will not be discharged. At this time, the lenses and laser tubes will also be seriously polluted. Finally, they will oxidize the electronic parts of the machine and cause the war is not good. This is why the response of engraving time is slow.

Skill 4:

Focus mirrors and mirrors should also be checked regularly. Because its frame is easy to heat, if not real-time disposal punishment, will make the appearance of oxidation, a long time will rust. Especially is the use of air pump and air compressor users, but also to regularly check the lens, so as not to cause irreparable place display.

Skill 5:

To make the engraving machine connected to the best state, the first thing is to make its power cooling connection unobstructed, but also fair, the current should be connected within 50%, on the contrary, it will cause the effect of increasing the blocking rate.

With the popularity of computer engraving machine in advertising logo industry, computer engraving machine is no longer just a symbol of strength, it has become a real batch of professional products.

The typical application of computer engraving machine in advertising logo industry includes: chest card processing, cutting crystal characters, carving three-dimensional characters, manufacturing sand table parts, processing light box components, processing organic products and carving relief characters and pictures.

The most important features of the above application are as follows:

·Products request precision, processing area is small, processing can only use small tools! The use of small tools to produce higher power, which requires equipment and processing skills, it is necessary to have professional characteristics!

·It is necessary to produce in batches! It is difficult to produce good planning benefits without batch production.

Operators with practical production experience all understand that it is easy to do a job, but it is difficult to work in batches without accidents! This is to test whether things are “comfortable to use and easy to use”!

The most prominent feature of professional CNC carving machine is: professional carving CAD / CAM software and CNC carving machine for professional and strict matching!

When a professional computer (CNC) engraving machine is used for batch processing, the professional engraving software can ensure that the operator can make a plan smoothly and generate a reasonable and efficient processing program; when the data is loaded and the tool is adjusted and started to work, the operator only needs to listen to the cutting sound of the cutter on time to determine whether the tool is worn or not, and to replace the cutter when necessary, which is not necessary When the processing is completed, if it is found that the processing in some areas does not meet the requirements, the operator can use the repair function on the machine to make up for it on site, and a batch of work is completed so fluently. It’s easy to work like this!

The low degree of specialization of the computer (CNC) engraving machine for the operator to plan an ambitious processing method – there are no unexpected conditions in the process! If this kind of condition exists, this kind of carving machine work is not a problem, but in fact, in the long-term batch processing, there is no accident. At this time, the work should be “not at hand”! The main performance is: tool adjustment is difficult to accurately locate and difficult to repair the deficiencies in the processing! This may be formed: low positioning accuracy of cutting tool affects the accuracy of products, and it is necessary to repeat processing to reduce processing power!

CNC engraving machine provides support in the following aspects to ensure that customers are comfortable in using “!

Taking the professional carving CAD / CAM software as the planning channel, the machining target of the central computer (CNC) for efficient small tool carving is mostly precise and disordered shape. Its appearance and processing method are different from the traditional CNC processing method. If there is no professional carving CAD / CAM function as support, it is difficult to achieve high efficiency in practical application. It is the same root and flesh and blood with the carving machine, which can be called “seamless integration”! For customers to use the carving machine at that time profit-making ability and future development space to provide strong support.

Using precision high speed spindle motor

High speed and precision spindle motor features high speed, high precision, low noise, low vibration and high-speed constant power, which ensure that the small tool can obtain high cutting line speed, adhere to high rotation accuracy and stable working shaft system, and can produce satisfied high-speed cutting force.

CNC carving skills based on equal cutting skills

Equal cutting is a cam professional skill for high-speed cutting with small tools. No matter how messy the processing area is, this skill is accurate