Clamp for machining inner wall of motor shell of new energy automobile

Abstract

The invention relates to the technical field of motor shell machining clamps, and provides a clamp for machining the inner wall of a motor shell of a new energy automobile. The clamp comprises: a rotating table used for connecting a tool; a main body assembly arranged below the rotating table, wherein a plurality of fixing sleeves movably arranged in the axis direction of the main body assembly; and a driving part arranged on the main body assembly, wherein the inner diameter of each fixing sleeve is larger than the outer diameter of a workpiece to be machined, and the driving part can drive the fixing sleeves to be switched between a first position and a second position on the main body assembly. Compared with the prior art, the clamp has the advantages that the clamp is connected to the tool in the vertical direction through the rotating table, and when a workpiece is cut by a cutter, metal chips stripped from the inner wall of the workpiece are separated from the workpiece under the action of self gravity, so that the influence of the metal chips on the inner wall of the workpiece is reduced, and the machining precision of the inner wall of the workpiece is improved.

Description

technical field [0001] The invention relates to the technical field of a jig for machining a motor casing, in particular to a jig for processing the inner wall of a motor casing of a new energy vehicle. Background technique [0002] As people's requirements for the mileage of new energy vehicles are getting higher and higher, in order to place as many batteries as possible in new energy vehicles, new energy car companies have made the processing of the motor casing more and more precise. [0003] In order to realize the processing of the motor casing, the Chinese invention patent (application publication number: CN110281041A) which is already in the open state discloses a motor barrel milling fixture, which includes: a turntable, the upper end of which is provided with a mounting seat for installing the motor barrel, and a There is a moving space; the moving shaft is movably inserted in the turntable and its end is located in the moving space; the clamping component is conne...

AI Technical Summary

Problems solved by technology

[0004] However, when the fixture clamps the workpiece for processing, the workpiece rotates along the horizontal direction. When the tool is processing the workpiece, the metal shavings cut from the inner wall of the workpiece will rotate together with the rotation of the workpiece on the inner wall of the workpiece. When rotating, it will scratch the inner wall of the workpiece and reduce the machining accuracy of the workpiece, and when the fixture clamps the workpiece, the clamped part of the workpiece is much smaller than the total length of the workpiece, and the overhanging length of the workpiece is too long to make the workpiece Vibration, the vibration of the workpiece during processing will cause scratches on the processed part of the workpiece, which greatly affects the processing accuracy of the workpiece

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