Machining method of coarse pitch threads

A processing method and technology of large pitch, applied in metal processing equipment, manufacturing tools, program control, etc., can solve the problems of dependence, inability to meet the needs of production, long processing cycle, etc., to reduce the requirements of geometric size and accuracy, guarantee Thread shape and position accuracy, the effect of avoiding easy waste

Inactive Publication Date: 2012-11-14
KOCEL GROUP +1
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AI Technical Summary

Problems solved by technology

Traditional thread processing using dies, taps, and forming turning tools can no longer meet the needs of production
The traditional processing method is difficult to guarantee the accurac

Method used

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Comparison scheme
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Embodiment Construction

[0020] A method for processing large-pitch threads, which is characterized in that it includes the following steps:

[0021] a. Construct mathematical modeling of finishing contour and rough machining contour of right-angle trapezoidal thread;

[0022] b. Design the tool path according to the designed non-standard tool geometry;

[0023] c. Use the rough machining contour and tool path mathematical model of the above steps to construct a CNC macro program;

[0024] d. According to the tool nose radius R0.8 and the actual processing equipment, select the appropriate cutting parameters n=10r / min, p=75mm / r, f=n*p=750mm / min, Vc=π*d*n / (1000*60)=90m / min, use the thread right-angle edge finishing contour and tool path mathematical model to construct the CNC macro program, divide the right-angle edge with multiple passes, use the template and feeler gauge to detect, until the required accuracy: inclination ∠=45°±0°3′, P=75±0.025, □ =□25.4:0.013, surface finish=N8;

[0025] e. According to t...

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PUM

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Abstract

The invention relates to a machining method of threads, in particular to the machining method of coarse pitch threads. The machining method comprises the following steps of building a right-angle trapezoidal thread finish machining outline and rough machining outline mathematical models; designing cutter paths according to the physical dimension of a designed non-standard cutter; building a numerical control macroprogram by applying the rough machining outline and cutter path mathematical models, selecting appropriate cutting parameters according to tool nose fillet radius R0.8 and combining with actual machining equipment and building a numerical control macroprogram by applying thread right-angle side finish machining outline and cutter path mathematical models, mathematical models right-angle sides by repeatedly feeding, and adopting sample plate and feeler gauge detection until required accuracy is achieved; and adjusting numerical control macroprogram contents, using the sample plate and feeler gauge to detect in a matched mode and completing machining of right-angle trapezoidal thread slope side according to machining results. The machining method is unique in process method, capable of effectively guaranteeing thread accuracy of forms and positions and surface smoothness, improving processing efficiency and shortening machining period.

Description

Technical field [0001] The invention relates to a thread processing technology, in particular to a processing method of a large pitch thread. Background technique [0002] With the continuous improvement of the functional requirements of large-scale mechanical transmission structures, higher requirements have been put forward for the shape and position accuracy of transmission parts. Large trapezoids, especially right-angled trapezoids, are one of the typical representatives. Traditional thread processing using dies, taps, and forming turning tools can no longer meet the needs of production. The traditional machining method is difficult to guarantee the accuracy of the thread profile, the machining efficiency is low, the machining cycle is long, and the defects that are prone to waste products are more dependent on the machining tool. Summary of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a method for proces...

Claims

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Application Information

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IPC IPC(8): G05B19/4093B23G1/00
Inventor 杨浩柏长友延阳伟郭进鹏王绍刚苏建民杨保
Owner KOCEL GROUP
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