April 2020 – Page 9 – CNC Machining & Turning, Milling, Metal parts

CNC Machining Flange cover

CNC Machining Flange cover for machine parts of respirator 15K / 20

CNC Machining Flange cover for machine parts of respirator 15K / 20K. Ultrasonic metal parts.

What is the processing technology of aluminum parts in surface grinder

When grinding aluminum parts, the grinding wheel is waxed. Before grinding aluminum parts, open the grinding wheel cover and shovel the ash inside, so as to prevent the ash inside the grinding wheel cover from falling off on the parts in the process of grinding aluminum parts. There will be deep marks on the parts after the grinding wheel is rolled. The grinding wheel should not be too thick or too thin. It is better to grind it with a heat-treated material for a while, blunt the grinding wheel a little bit, and then back and forth Block against the part, use water-soluble cutting fluid to play a layer on the surface of the part, while grinding, according to the thickness of the aluminum part, choose how much to cut, generally 0.01 for the large aluminum plate, the key depends on your own technology, I am grinding aluminum plate 6.50 now 0.05 * 300 * 580 plate, grinding thickness parallelism 005, 0.08 under one knife, grinding aluminum plate is easy to deform and stick grinding wheel, peers who just contact with grinding aluminum plate should feed less and turn over more,

The function of precision machining technology

1、 It is the main technical document to guide production

The production planning and scheduling of machining workshop, the operation of workers, the processing quality inspection of parts, and the accounting of processing cost are all based on the process specification. In dealing with the problems in production, the technological procedure is often taken as the common basis. In case of handling quality accidents, the responsibilities of relevant units and personnel shall be determined according to the process procedures.

2、 Is the main basis of production preparation

When the workshop wants to produce new parts, it should first formulate the machining process specification of the parts, and then prepare for production according to the process specification. For example, the analysis and research of key processes in the processing technology of new parts, the preparation of necessary knives, clamps and measuring tools, the purchase or manufacturing of raw materials and blanks, the purchase of new equipment or the modification of old equipment, etc. must be carried out according to the technology.

3、 It is the basic technical document of the new machinery manufacturing plant

When a new batch or large-scale machining workshop is built, the type and quantity of the machine tools required and the layout in the workshop shall be determined according to the process specification, and then the size of the workshop area, the configuration of power and hoisting equipment, and the type of work, technical level and quantity of the workers required shall be determined.

What is the principle of precision parts processing

The basic research focuses on how to reduce the deviation and improve the accuracy. Therefore, the basic principles for selecting the natural surface are as follows:

1: Principle of datum coincidence. The design datum as far as possible shall be selected as the positioning datum. Uniqueness is at the end of the final, to ensure accuracy, we should pay more attention to this principle. In this way, it is advisable to prevent the formation of position deviation datum deviation;

2: The principle of datum unification. It is necessary to select a unified surface treatment for positioning datum plane, although the position accuracy between the surfaces shall be ensured, and the processing shall be repeated occasionally according to the principle of common datum;

3: The principle of self reference. Some small machining allowance and unified finishing process ensure machining quality and production rate, as a basic level with carefully machined surface itself.

That’s all. We’re looking forward to seeing you next time. We’ll pay attention to safety in haze weather.

Principle of vacuum suction for CNC machining die

Generally speaking, swindling vacuum sucker to grab the finished product is the cheapest way. There are various types of vacuum suction cups. The rubber suction cups can be operated under high temperature. The silicon rubber suction cups are quite suitable for catching the rough finished products. The polyurethane suction cups are very durable. In addition, in essence, if the sucker is required to have oil resistance, it is advisable to study the use of polyurethane, nitrile rubber or vinyl containing polymers and other raw materials to manufacture the sucker. Generally, in order to prevent the surface of the finished product from being scratched, it is better to choose the suction cup with wave tube made of NBR or silicone rubber as the raw material, which is made of NBR and has great breaking force, so it is commonly used in various vacuum holding equipment.

2、 The vacuum sucker used on the CNC computer gong is the foot color of the fixture beside the CNC machining center. Some workpieces require high surface smoothness, so the fixture of the commonly used CNC computer gong cannot be used. At this time, the vacuum sucker can be used. But we seldom use the vacuum sucker made of rubber near the CNC computer gongs, but more use the CNC vacuum sucker. The so-called CNC vacuum sucker is a kind of unique vacuum sucker that uses a vacuum generator plus a switch. The principle of drawing is the same as that of rubber vacuum sucker. They all create a vacuum environment to make the atmospheric pressure press the sucker on the workpiece, but the CNC vacuum sucker The vacuum of is produced by the vacuum generator in the vacuum environment, and there is a big difference in the appearance. The rubber vacuum sucker is a simple vacuum element, while the CNC vacuum sucker is the same as a big plate. The use of vacuum sucker in CNC computer gongs is usually due to the fact that the workpieces processed have high requirements for surface smoothness. Maybe it is only used when the fixture of CNC computer gongs cannot clamp the workpieces very well. It is a unique and cheap fixture in CNC machine tools.

What processing equipment is necessary for parts processing factory

A capable hardware processing factory, what equipment do they have to process what products? Maybe this is a problem that many people are paying attention to. How many processes do we usually see for electronic hardware products? Today, small textile focuses on explaining to the public what kind of mechanical equipment does a capable hardware processing plant have to be capable of? Let’s have a brief introduction.

1. Must have milling machine

2. Must have CNC lathe

3. Must have automatic lathe

4. Must have CNC machining center

5. There must be a cutting machine

6. Must have grinder

7. There must be a thunder carving machine

8. Must have three-dimensional testing instrument

9. Must have product protection equipment

10. There must be a supplier of high-quality product surface treatment

Gantry CNC for gantry milling

This type of cutting machine is of gantry structure, with a transverse span of 3M, 4m, 5m, 6m, 8m and other specifications. It is driven bilaterally with stable operation, good configuration and high working efficiency. It can be used for cutting large, medium and small steel plates of various carbon steel, manganese steel, stainless steel and other metal raw materials. According to the user’s requirements, more cutting torches can be configured, or a dual-purpose cutting method of special-shaped cutting and straight cutting can be configured, in addition, an automatic capacitance or plasma heightening system can be selected.

System characteristics

1. The system has improved performance, high stability, strong anti-interference, and is applicable to all kinds of plasma power sources outside China;

2. Highlight the value advantage and have a strong price ratio

How to ensure that the automobile inspection tool products are qualified in the actual inspection

Vehicle inspection tools are simple devices used by industrial manufacturers to control various sizes of products. They are used for a large number of manufactured products, such as auto parts, to replace special measuring devices, such as vernier caliper, depth gauge, etc.

The automobile inspection tool is developed according to the special planning and design requirements of the vehicle type. It can be used to measure and evaluate the size and size of the special automobile inspection tool by fraud. It is mainly used for the measurement and adjustment of mold accuracy in the manufacturing planning stage and the daily treatment of the size after batch manufacturing.

The main body of the vehicle inspection tool is the key frame of the inspection tool, including the base (reference plane), vehicle surface and installation part of the inspection tool. Generally speaking, the base and vehicle surface are made of epoxy resin or aluminum.

It is required that the die body mounting part must be able to receive the turning force with the mounting strength of 12n · m (122kgf · cm). Therefore, when the material of the main body is resin raw material, it is necessary to use metal parts to manufacture the lighting installation part, so as to prevent the lighting from falling and circling during loading and unloading.

Automobile inspection tool manufacturing is usually divided into aluminum parts, iron parts or resin parts. When it comes to daily maintenance and service life, we should take care of them regularly. Occasionally surface treatment such as spraying is required. Some matters that need to be paid attention to in the design of vehicle inspection tools:

(1) Lesson space

(2) Portability

(3) Use some body parts to reflect the reproducibility

We are open to business

During the epidemic, we still work hard and hope all will be well in the world. If you need CNC machining, please contact us. We are open to business .

The difference between fixture two color mold and rubber covered mold

A. Two color mold: two kinds of plastic raw materials are injected into the same injection molding machine in two times, but the products are only produced once. Usually this kind of molding process is also called double material injection molding. It is usually completed by a set of molds, and special two-color injection molding machine is required. Weixun two-color mold B. rubber covered mold (secondary molding): two kinds of plastic raw materials are not sure to be injected on the same injection molding machine, which are divided into two times of molding; the products are taken out of one set of mold, and then put into another set of mold for the second injection molding. Therefore, usually this kind of molding process is usually completed by two sets of molds, without the need for special two-color injection molding machine. Overview of two-color mold and rubber covered mold: in the design of rubber covered mold, attention should be paid to the positioning of hard rubber parts. It is necessary to achieve * sealing and have anti slope holes on the rubber parts, so as to prevent rubber deformation. At present, the two-color mold is increasingly popular in the market. In this process, it is better to make the appearance of the product more beautiful, easy to change color and not spray, but the cost is high and the technical requirements are high

1. The two forms of cavity are different. Farewell forms a product. The two forms of core are exactly the same. 2. After the front and back dies of the die rotate 180 o in the center, they must be consistent. Make sure to do this test when designing. 3. Pay attention to the position of the top pinhole with a minimum interval of 210mm. For large moulds, the number of holes in the ejector pin shall be increased appropriately. Moreover, since the ejector attached to the injection molding machine itself can not be long, we must design a long ejector in our mold, and the ejector will grow 150 mm out of the mold base plate for control. Two locating rings must be designed on the back mold bottom plate. 4. The total thickness of front formwork panel plus a plate shall not be less than 170mm. Please carefully check other reference data of this type of injection molding machine, such as the maximum mold thickness, the minimum mold thickness, the spacing of the top stick hole, etc. 5. It is better to design the nozzle of the three plate mold as the automatic demoulding behavior. Special attention should be paid to the demoulding behavior of the soft rubber nozzle. 6. The depth of sprue at the front side shall not exceed 65mm. The distance between the top of sprue on the upper side (large water port) and the center of mold embryo shall not be less than 150 mm. 7. In the design of the second injection molding of the cavity, in order to prevent the insertion (or rubbing) of the cavity from damaging the product glue position which is still well formed for the first time, it is advisable to design a part of the cavity avoidance. However, we must carefully study the strength of each sealing position, i.e. in injection molding, is there any possibility of plastic deformation under large injection pressure, resulting in the possibility of batch front in the second injection molding? 8. During injection molding, the product size of the first injection molding may be slightly larger, so that it can be pressed more tightly with another cavity during the second molding to achieve the sealing effect. 9. Pay attention to whether the flow of plastic in the second injection will impulse the products still forming for the first time and make their glue position deformed? If this is possible, we must think of ways to improve. 10. Before closing the A and B plates, pay attention to whether the front mold slider or lifter will reset first and crush the product? In this way, we must find a way to close the die on board a and B first, and then the slider or life of the front die can be reset. 11. although the water transportation deployment of the two CAVITY and CORE is sufficient, they are balanced and the same. In 12.99% of cases, the hard part of the product is injected first, and then the soft part of the product is injected. Because soft rubber is easy to deform.