Branching device and branching method for processing high-precision multiple thread part

Abstract

The invention belongs to the field of machine manufacturing and relates to a branching device and a branching method for processing a high-precision multiple thread part. The branching device comprises a base and a positioning plate. The base is parallel to the positioning plate and is fixedly connected to the positioning plate through a bolt; a positioning pin is arranged on the base; two or morepin holes matched with the shape structure of the positioning pin are formed in the positioning plate; the two or more pin holes are uniformly formed in the positioning plate; and a limiting screw for fixing a to-be-processed workpiece is arranged on the positioning plate. The invention provides the branching device and the branching method for processing the high-precision multiple thread part,wherein the branching device and the branching method are suitable for a common lathe, can branch precisely quickly and conveniently, are simple to operate and are not limited by screw pitch and stroke.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and relates to a thread separating device for multi-thread threads, in particular to a thread separating device and a thread separating method for processing high-precision multi-thread thread parts. Background technique [0002] In mold manufacturing, the forming surface is threaded from time to time, and the processing requirements for the threaded surface are relatively high, among which the processing of multi-threaded threads has always been a difficult point. When operating on an ordinary lathe, because each helical line of the rough turning and finishing turning needs multiple tool setting, the tool setting requires workers to rely on visual judgment, coupled with factors such as line splitting angle errors, so when processing multi-line threads at the production site There are often uneven parting lines and chaotic teeth, and the pass rate is very low, which makes workers very head...

AI Technical Summary

Problems solved by technology

[0004] 1) Small pallet scale line dividing method, also called axial line dividing method, is to move the turning tool 1.5 times the pitch along the axial direction of the workpiece after turning one helix, and then turn another helix, the disadvantage is the line dividing The precision is low, the stroke of the small skateboard is limited, and there will be empty space and gaps when the small skateboard moves;

[0005] 2) Using the dial indicator (or dial indicator) and the line dividing method of the gauge block, that is, after a helical line is completed on the car, install the magnetic gauge base on the saddle so that the measuring head of the indicator is in contact with the small slide plate, and the small movement is small. When the slide plate is used, the indicator will display the exact reading. This method has high precision. The disadvantage is that when processing a thread with a large pitch or a limited stroke, it must be used in combination with a gauge block. The operation is complicated, and it is easy to impact and collide during processing. The vibration of the machine tool during turning will affect the accuracy of line division;

[0006] 3) Using the exchange gear splitting method, that is, when the number of teeth of the lathe exchange gear Z is an integral multiple of the number of threads, the line can be divided by manually adjusting the exchange gear. The disadvantage is that each spiral groove needs to be stopped and cut off. Power supply, disengaging and reassembling the transmission gear, the operation is cumbersome, and requires workers to have a certain calculation ability, so it is not suitable for use in the production site

[0007] Previously, the production site was always processed on ordinary lathes by senior lathe technicians, and the pass rate was only 40%.

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