Numerical control machine tool clamp for motor casing machining

Abstract

The invention discloses a numerical control machine tool clamp for motor casing machining, and relates to clamps. The numerical control machine tool clamp is used for solving the problem that a motorcasing is prone to deform when being clamped by a common clamp. The numerical control machine tool clamp comprises a hydraulic three-jaw chuck arranged on a rack, and further comprises centering supporting blocks fixed on clamping jaws of the hydraulic three-jaw chuck, wherein the number of the centering supporting blocks is equal to that of the clamping jaws, and the plurality of centering supporting blocks are spliced to form a hollow centering column. The numerical control machine tool clamp for motor casing machining has the following advantages and effects that the centering supporting blocks in an inner supporting form can correct the motor casing in the motor casing supporting process, and deviation of the central axis in the motor casing in the positioning process is reduced so that the position of the central axis of the motor casing can be conveniently and accurately found in the subsequent tool setting process, the coaxiality between a shaft penetrating hole in the motor casing and an inner cavity of the motor casing is improved, and then the purpose of reducing the rejection rate of the motor casing is achieved.

Description

technical field [0001] The invention relates to a fixture, in particular to a numerically controlled machine tool fixture for machining motor casings. Background technique [0002] The motor is a very commonly used power component in the industry. One of the key factors determining its power conversion efficiency is the concentricity between the inner cavity of the motor and the through-shaft hole on the casing for the rotor to pass through. Therefore, when turning the through-shaft hole In the process, it is necessary to ensure its concentricity as much as possible, and the key to affecting this parameter lies in the clamping accuracy of the casing processing. Generally, the processing of the casing is carried out on the CNC machine tool, and the fixture is generally three-grip Chuck. [0003] At present, the Chinese invention with the authorized notification number CN206405449U discloses a high-efficiency three-grab chuck for machine tool processing, including a chuck bod...

AI Technical Summary

Problems solved by technology

[0004] For the above-mentioned three-grip chuck, in the process of clamping and fixing the casing, due to the small thickness of the casing, the extrusion of the claws on the casing will easily cause deformation of the casing, so the casing will It is difficult to ensure the coaxiality between it and the inner cavity of the casing, and the casing with too large deviation cannot be used and must be scrapped. Therefore, this clamping fixing method is easy to cause the machine Shell scrap rate is too high

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