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What are the programming skills of CNC machining? Let’s have a simple understanding:

1、 Using computer to imitate simulation system

With the development of computer technology and the continuous amplification of NC machining education, there are more and more NC machining simulation systems, and their performance is improving day by day. Therefore, it can be used to start the inspection procedure and watch the tool’s activity to determine if there is a possibility of collision.

2、 Using the imitation performance of CNC machining center

Generally, more advanced CNC machining centers have graphic display performance. After inputting the program, we can call the graph to simulate the performance and watch the moving track of the tool in detail, so as to check whether the tool may collide with the workpiece or fixture.

3、 The idling performance of CNC machining center

The accuracy of tool path can be tested by using the idling performance of CNC machining center. When the program is input into the CNC machining center, you may as well install the tool or workpiece, and then press the “idle” button. At this time, the spindle does not rotate, and the worktable automatically runs according to the program path. At this time, you may find out whether the tool may collide with the workpiece or fixture. However, in this case, it must be ensured that when the workpiece is installed, the cutter cannot be installed; when the cutter is installed, the workpiece cannot be loaded, otherwise there will be collision.

4、 Using the locking performance of CNC machining center

Generally, CNC machining centers have locking performance (full lock or single axis lock). After inputting the program, the z-axis is locked and the collision can be inferred by the coordinate value of z-axis. The use of this feature should avoid tool change, or the program can not pass.

5、 The configuration of coordinate system and cutter compensation must be accurate

When starting CNC machining center, the reference point of CNC machining center must be configured. The working coordinate system of CNC machining center should be consistent with that of programming, and it is more and more the target of Z axis. If there is a mistake, the possibility of collision between milling cutter and workpiece is quite large. In addition, the configuration of tool length compensation must be accurate, otherwise, it is either empty machining or collision.

The above is the CNC processing programming skills, I hope to help you.

CNC lathe processing need to pay attention to which points? We have a simple understanding of the following:

1. Pay attention to the selection of cutting parameters

The cutting speed, feed rate and cutting depth of CNC Lathe will directly lead to tool damage. With the increase of cutting speed, the tool tip temperature will rise, which will cause mechanical, chemical and physical related wear. When the cutting speed is increased by 20%, the tool life will be reduced by 1 / 2. The influence of feed rate on tool wear is smaller than that of cutting speed, but when the feed rate is large and the cutting temperature rises, the tool wear will be greater. Although the influence of cutting depth on the tool is not as great as the cutting speed and feed rate, when the cutting depth is small, the hard layer of the material to be cut will also affect the tool life.

1. Pay attention to the tool selection

1) In rough turning, the tool with high strength and good durability should be selected to meet the requirements of large back cutting and large feed rate. CNC programming UG communication Q group: 304214709, want to learn NC programming, get no taste of learning raw materials plus this group Oh

2) When finishing turning, the tool with high precision and good durability should be selected to ensure the machining accuracy.

3) In order to reduce the time of tool change and simple tool setting, machine clamping tool and machine clamping blade should be selected.

CNC machining

1. Pay attention to the selection of fixture

1) Although the general fixture is used to clamp the workpiece, the special fixture is prevented;

2) Parts positioning datum coincide to reduce positioning deviation.

1. Pay attention to the affirmation of processing route

Machining route refers to the moving track and target of tool relative to parts in the process of NC lathe machining.

1) The machining accuracy and surface roughness requirements shall be guaranteed;

2) The processing route should be reduced to reduce the tool idle travel time.

In the process of NC lathe processing, we should pay attention to the above four points for attention. Only by choosing the most suitable NC lathe processing mode can we improve the processing efficiency and accuracy of NC lathe processing.

The above is CNC lathe processing need to pay attention to a few points, I hope to help you.

What aspects need to be monitored during CNC processing? Let’s have a brief understanding:

1. Monitoring of rough machining

Machining process monitoring and rough machining focuses on the rapid removal of surplus on the workpiece surface. In the process of automatic machining, according to the set cutting parameters, the tool automatically cuts according to the predetermined cutting path. At this time, the operator should pay attention to the change of cutting load in the automatic machining process through the cutting load table, adjust the cutting parameters according to the receiving force of the cutting tool, and develop the maximum efficiency of the machine tool.

1. Monitoring of cutting sound

Monitoring of cutting sound in the process of automatic cutting, the sound of cutting tool cutting workpiece is stable, continuous and light, and the activity of the machine tool is stable. With the cutting process going on, when there are hard points on the workpiece or tool wear or tool clamping, the cutting process will be unstable. The instability is that the cutting sound changes, and the tool and workpiece will collide with each other, causing a sensation in the machine tool. At this time, the cutting parameters and cutting conditions should be adjusted quickly. When the adjustment effect is not obvious, the machine tool should be suspended to check the cutting tool and workpiece.

1. Monitoring of finish machining

Finish machining process monitoring finishing, mainly to ensure the machining size and surface quality of the workpiece, high cutting speed and large feed rate. At this time, attention should be paid to the effect of chip accretion on the machined surface. For cavity machining, we should also pay attention to the over cutting and tool passing at the corner. In dealing with the above problems, the first is to adjust the spray position of cutting fluid to keep the machined surface in cooling condition at all times; the second is to pay attention to the quality of the machined surface of the workpiece. After adjusting the cutting amount, the quality change can be prevented as much as possible. If the adjustment still has no obvious effect, it should stop to check whether the original procedure is correct. Special attention should be paid to the tool position when the inspection is suspended or stopped. If the tool stops in the process of cutting, the spindle suddenly stops rotating, which will cause tool marks on the surface of the workpiece. In general, the shutdown should be studied when the tool is out of the cutting form.

1. Tool monitoring

The quality of the tool is very high, which determines the machining quality of the workpiece. In the process of automatic machining and cutting, the normal wear and abnormal damage of cutting tools should be inferred by means of sound monitoring, cutting time control, suspension inspection during cutting and workpiece surface analysis. According to the processing requirements, the cutting tools should be treated quickly to prevent the processing quality problems caused by the cutting tools not being handled in a hurry.

The above is CNC processing need to monitor several aspects, hope to help you.

Any equipment and machinery in the production process will have some fault problems, so our CNC processing is the same, but generally lead to the failure of the main shaft, so we can first find the problem from the spindle, the spindle system according to the transmission system can be divided into variable speed gear main drive spindle, through the belt drive main transmission spindle The main shaft is driven by two motors and the main shaft is integrated by motor and spindle. So, let’s learn about the common faults of CNC machining?

1. Overload.

Fault causes: excessive cutting amount, frequent positive and negative rotation, spindle motor failure, spindle drive device failure.

1. The spindle does not rotate

Fault causes: spindle drive device failure, CNC device can not output speed signal, spindle motor fault, spindle drive device fault, drive belt fracture.

1. Spindle speed deviation from command value

Fault causes: motor overload, problems with spindle speed command output from CNC system, fault of speed measuring device or disconnection of speed feedback signal.

1. Abnormal noise and vibration of spindle

Fault cause: it usually occurs in the process of deceleration, and the spindle drive device has problems, such as the regeneration circuit fault in AC drive.

The above points are the common faults of CNC machining spindle, and the above editor also talked about the solution. Today, I will talk about it here. If you want to know more information, please visit our website for detailed consultation.

What are the principles of CNC machining error of mechanical parts? Let’s have a brief understanding:

1. Processing deviation

The reason deviation of CNC machining is due to the selection of the approximate machining activity method or the similar tool appearance. Because of the deviation in the machining principle, it is called the machining principle deviation. The reason deviation should be within the promise line.

1. Geometric deviation of machine tool

The manufacturing deviation, installation deviation and wear in use of machine tools directly affect the machining accuracy of the workpiece. Among them, it is mainly the spindle rotation, the linear movement of the guide rail and the deviation of the transmission chain of the machine tool.

1. Manufacturing deviation and wear of cutting tools

CNC machining tool manufacturing deviation, installation deviation and wear in use, all affect the machining accuracy of the workpiece. In the process of cutting, the cutting edge, cutting face, workpiece and chip have a sharp conflict, which makes the tool wear. When the tool wear reaches a certain value, the surface roughness of the workpiece increases, and the chip color and form change, and appear to be vibration. Tool wear will directly affect the cutting rate, machining quality and cost.

The above is the principle of CNC machining error of mechanical parts, hope to help you.

We usually know that when we buy clothes, the most important thing is good-looking, followed by quality. Because only attract our eyes, so that customers have the desire to see. It is the same in our industrial industry, but we should pay attention to the quality, because our industry pays attention to the practical aspect. So let’s find out what factors should be considered when choosing the CNC surface processing method?

1. Any CNC machining method can obtain a considerable range of machining accuracy and surface roughness, but only in a narrow range is economic, the range of machining accuracy is economic. Therefore, when selecting the processing method, we should choose the corresponding processing method which can obtain the economic machining accuracy.
2. The material properties of CNC parts should be considered.
3. The structure shape and size of CNC parts should be considered.
4. Productivity and economic requirements should be considered. In mass production, advanced technology with high efficiency should be adopted. Even can fundamentally change the manufacturing method of the blank, can reduce the amount of mechanical processing labor.
5. The existing equipment and technical conditions of the factory or workshop should be considered. When selecting the processing method, the existing equipment should be fully utilized, the potential of the enterprise should be tapped, and the enthusiasm and creativity of the workers should be brought into play. However, it is also necessary to continuously improve the existing processing methods and equipment, adopt new technologies and improve the technological level.

The above points are the factors that we can’t ignore when we choose the CNC surface processing method. We must pay attention to them. Today, we will talk about it first. If you want to know more information, please visit our website for details