Clamping mechanism

Abstract

The invention relates to a clamping mechanism which is mounted between a machine tool and a part to be machined. The machine tool comprises a main shaft, the part is provided with a mounting hole part, and the clamping mechanism comprises a fixed seat, an expansion nail and an expansion sleeve which are coaxially arranged; the fixing base is fixed to the machine tool and provided with a datum plane, and the end face of the mounting hole part can be attached to the datum plane; the expansion nail sequentially penetrates through the expansion sleeve and the fixing base and is coaxially fixed with the main shaft, and a first expansion head matched with the expansion sleeve is arranged at one end, far away from the main shaft, of the expansion nail; and the expansion sleeve can be located in the mounting hole part, and the first expansion head is located at the side end, away from the fixing base, of the expansion sleeve and can move in the axial direction of the expansion sleeve under the action of the main shaft so as to expand the expansion sleeve. According to the clamping mechanism, the clamping technology of the part to be machined in the machining process can be simplified, the machining efficiency is improved, and the machining precision is guaranteed.

Description

technical field [0001] The invention relates to the technical field of processing equipment, in particular to a clamping mechanism. Background technique [0002] For the processing of parts such as the differential case, because the appearance and structure of different types of parts are different, when machining the parts, it involves processes such as turning, milling, and drilling, but due to the equipment's tools, fixtures, etc. Limitation, during machining, it is necessary to turn several outer circular surfaces on the lathe, and then go to the turning-milling compound equipment to process the inner cavity, drilling and other remaining processes. During this process, the parts need to be clamped in different equipment, and the operation is cumbersome And the machining efficiency is low, and changing the machine tool and re-clamping and machining is likely to cause large errors. [0003] Therefore, how to simplify the clamping process of the parts to be processed, impr...

AI Technical Summary

Problems solved by technology

[0002] For the processing of parts such as the differential case, because the appearance and structure of different types of parts are different, when machining the parts, it involves processes such as turning, milling, and drilling, but due to the equipment's tools, fixtures, etc. Limitation, during machining, it is necessary to turn several outer circular surfaces on the lathe, and then go to the turning-milling compound equipment to process the inner cavity, drilling and other remaining processes. During this process, the parts need to be clamped in different equipment, and the operation is cumbersome And the processing efficiency is low, and the replacement of the machine tool and re-clamping processing is likely to cause large errors

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