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Method for Machining Separate Heads of Multi-start Trapezoidal Thread

A trapezoidal thread and multi-thread technology, which is applied in the field of thread processing, can solve the problems of low efficiency in processing multi-thread threads, and achieve the effect of quick and easy line dividing, accurate line dividing and good use effect.

Active Publication Date: 2015-08-26
CRRC QISHUYAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the inefficiency of existing multi-start thread processing, the present invention provides a method for processing multi-start trapezoidal thread split ends

Method used

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Examples

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Embodiment Construction

[0007] A method for processing separate ends of multi-start trapezoidal threads, the thread lead is L, the screw pitch is Ls, the number of broken ends of multi-start threads is np, K is the required number of divided ends, and the number of molecules after the simplification of L / Ls is the number of broken ends When np and np / K are integers, move the large carriage for splitting.

[0008] According to another embodiment of the present invention, it further includes, after the first thread line is completed, reverse the car and return to the starting point, stop the machine and wait for the screw to not rotate at least, and move the large carriage forward and backward by a screw pitch Ls , press the gate code to start processing the second thread line, and repeat the value of K for several times to complete the processing.

[0009] An embodiment of the present invention:

[0010] 3-point thread processing method:

[0011] Using the large carriage to move and borrow the pitch...

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Abstract

The invention relates to the technical field of thread machining, in particular to a method for machining multi-start trapezoidal threaded separate heads. The lead of a thread is L, the thread pitch of a lead screw is Ls, the number of broken heads of the multi-start thread is np, and K refers to the required number of separate heads. The method is characterized in that the number of the separate heads is equal to the number np of broken heads after L / Ls is simplified, and a carriage is moved to separate the heads when np / K is an integer. After a first thread line is turned, a machine returns to a starting point by reverse turning and stops at least until the lead screw does not rotate, the carriage moves forwards or backwards by one thread pitch Ls of the lead screw, a second thread line is machined by pressing down a knob and starting turning, and the separate heads are machined by repeating the process for K times. In the method for machining the multi-start trapezoidal threaded separate heads, the ratio of the lead to the thread pitch of the lead screw is determined by calculation, the ratio of the lead is integer multiples of the thread pitch, branching cannot be disordered and is rapid, simple, convenient, visual and accurate, and use effects are fine.

Description

technical field [0001] The invention relates to the technical field of thread processing, in particular to a method for processing separate ends of multi-start trapezoidal threads. Background technique [0002] The commonly used dividing methods for turning multi-start threads are: Axial dividing method: use a small carriage to move and divide the thread on the thread lead, which is divided into three types: small carriage scale method, dial gauge method and block gauge method , suitable for turning small-pitch multi-line threads by straight-line method. Circumferential line dividing method: use the workpiece to turn a certain angle to divide the thread on the circumference of the end face of the thread. According to different situations, you can choose the number of hanging gear teeth, the special indexing plate, and the split nut plus random buckle. It is suitable for multi-thread thread and multi-thread worm turning with a large number of heads and a large lead. The cur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23G1/00
Inventor 潘德昌邱文亮
Owner CRRC QISHUYAN CO LTD
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