Method for milling thread on non-revolved body

Abstract

The invention relates to a method for milling screw thread on a non revolving body. The method of the invention includes the following steps: selecting a boring milling machining center lathe; clamping a work-piece on the boring milling machining center lathe; centering and recording the numerical value of the work-piece center; inputting on a work-piece frame of axes on a control panel, mounting a boring cutter to carry through a rough-finish boring screw thread bottom hole survival; demounting a boring cutter rod and mounting a suitable screw thread milling cutter; carrying through rough milling, semi-finish milling and finish milling on a screwed hole in turn until finishing by inputting a cutter radius compensation value Bn in a parameter list for a numerical control system on the control panel of the boring milling machining center lathe. And Bn is equal to R plus (R2 minus R1 minus A1 minus A2 minus...minus an); wherein, A1, A2...and An relates to the screw thread cutting depth for each time of milling, R relates to the radius of gyration of the screw thread milling cut, R2 relates to the radius of a survival screw thread and R1 relates to the radius of the bottom hole of the screw thread. The invention realizes the screw thread hole processing on non revolving bodes like a box body and a housing, etc., by the boring milling machining center lathe and has the advantages of high efficiency and high precision of the thread screw hole.

Description

technical field [0001] The invention relates to machining technology, in particular to a method for milling threads on a non-rotating body. Background technique [0002] In the known technology, machining threaded holes on non-rotating bodies has always been a difficult problem, and there is no good solution. One is to change the structure of the designed parts to avoid the problem that non-rotating bodies need to process threads; the other is to use hanging wheels for machining on the boring machine. One thread corresponds to one hanging wheel, and there are many kinds of hanging wheels that need to be made, resulting in cost It is relatively high, it is inconvenient to place and adjust the machine tool, the size is not easy to control, it is easy to produce waste products, the surface roughness of the thread is not high, and the requirements for the operation level of the workers are very high. Contents of the invention [0003] The object of the present invention is to...

AI Technical Summary

Problems solved by technology

One is to change the structure of the designed parts to avoid the problem that non-rotating bodies need to process threads; the other is to use hanging wheels for machining on the boring machine. One thread corresponds to one hanging wheel, and there are many kinds of hanging wheels that need to be made, resulting in cost It is relatively high, it is inconvenient to place and adjust the machine tool, the size is not easy to control, it is easy to produce waste products, the surface roughness of the thread is not high, and the requirements for the operation level of the workers are very high.