Clamping and positioning device for ring-sleeve parts and processing method for ring-sleeve parts

Abstract

The invention discloses a processing device and method for ring sleeve parts. The device includes a support shaft coaxially rotating with the main shaft of a machine tool, and an inner expansion fixture arranged at the end of the support shaft. The inner expansion fixture is used for clamping parts. On the wall of the inner hole, a positioning mechanism is installed on the supporting shaft in a movably connected manner, which can be used to position the inner end surface of the supporting part. The method includes: step 1, clamping the workpiece on the lathe: firstly send the internal expansion fixture into the inner hole of the part through the end surface I, and clamp and fix the part on the machine tool in the way of internal support, and then put the positioning mechanism against the On the end face Ⅰ; step 2: process the outer circular surface and end face Ⅱ of the part; step 3: move the positioning mechanism away to leave a processing space at the position of the end face Ⅰ; step 4: change the tool of the machine tool, and process the end face Ⅰ of the part. The beneficial effect of the invention is that the machining of the two end surfaces, the outer circular surface and part of the inner circular surface of the part can be completed by only one clamping, and the machining accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a clamping and positioning device for ring-sleeve parts and a processing method for ring-sleeve parts. Background technique [0002] Ring sleeve parts are widely used in the mechanical field, such as the outer ring gear used in the planetary gear train mechanism. This type of parts is basically a structure of revolution and has a central through hole, which is often obtained by machining. [0003] In the machining process of ring sleeve parts, it is basically necessary to process the end faces at both ends, and it is necessary to ensure that the two ends have a good parallelism. When processing both ends, the transmission method needs to be clamped twice, and the two ends are turned in the two processes. The disadvantages of this processing method are: 1. The number of times of clamping is too large, and the processing efficiency is to be expected. Imp...

AI Technical Summary

Problems solved by technology

When processing both ends, the transmission method needs to be clamped twice, and the two ends are turned in the two processes. The disadvantages of this processing method are: 1. The number of times of clamping is too large, and the processing efficiency is to be expected. Improvement; 2. Twice clamping will produce clamping error and reduce the machining accuracy of ring sleeve parts

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