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The Methods of CNC Machining Trapezoidal Thread and the Classification of Center Tool Magazine

CNC machining is an automated machine tool equipped with a program control system. The control system can logically process the program with control codes or other symbolic instructions, and decode it, so as to make the machine tool move and process the parts. General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining boring and milling machine, etc.

Ⅰ. Three methods of CNC machining trapezoidal thread

1. Inclined method

The main cutting method is oblique cutting. When using this method, it is necessary to control the ratio of the blade feed in the horizontal and vertical directions, and also effectively avoid the phenomenon of double-sided cutting and knife sticking. This method helps to improve the efficiency and quality of related processing work, meets the actual needs of industrial development, and is more and more widely used in industry.

2. Straight forward

Horizontal intermittent cutting is the main cutting method of this method. This method has high processing efficiency and simple and convenient operation. However, due to the large participation of the turning face, excessive cutting force is prone to lead to the phenomenon of tool sticking. The straight forward method has certain particularities. For trapezoidal threaded parts with a pitch greater than 6mm, the straight forward method cannot be used. The actual precision CNC machining must be fully combined with various influencing factors for comprehensive selection.

3. Automobile straight groove method

Generally, a rectangular thread turning tool with a blade width smaller than the bottom width of the tooth groove is selected. This method is simple in principle and less programming, but when turning a larger pitch trapezoidal thread, the stability of the tool becomes worse, the cutting groove is deepened, chip removal is difficult, and the cutting speed is lower. The straight cut cutting method has many key links to be grasped in the process of advancing the turning process, and the processing is somewhat difficult.

Ⅱ. Classification of CNC machining center tool magazine

In addition to the tool holder, the tool magazine can also realize the tool change process. The main power of the tool magazine comes from the transmission power provided by the motor and the hydraulic system, and the positioning device is used to ensure that the tools and tool sleeves that are replaced can be stopped accurately each time.

The CNC machining center adopts fully enclosed protection, the processing process is concentrated, and the processing process is continuous. Use multiple tools, you can also easily realize the automatic tool change process, use multiple workbenches, automatically exchange workbenches. At the same time, the CNC machining center also has a very powerful function support, and tends to compound processing. High degree of automation, high precision and high sales volume. Under appropriate circumstances, greater benefits can be brought into play.

According to the specific structure, it can be divided into three forms including vertical, horizontal and gantry.

The difference between the CNC machining center and other CNC machine tools is that the CNC machining center has a tool magazine and an automatic tool changer. This is the advantage of the CNC machining center. With automatic tool changer and tool magazine, the workpiece can be clamped at one time, and multiple processes can be automatically completed without manual work.

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