Crankshaft keyseat mistake-proofing positioning device

Abstract

The invention provides a crankshaft keyseat mistake-proofing positioning device, and solves the technical problem that an existing crankshaft keyseat positioning device is inaccurate in positioning, so that the symmetry degree of a keyseat is out of tolerance. The crankshaft keyseat mistake-proofing positioning device is provided with a clamp body, the clamp body is provided with an axial positioning column and a crankshaft support, the axial positioning column and the crankshaft support are fixedly installed on the clamp body, the clamp body is further provided with a pressing plate supporting column and a pressing stud, the pressing stud is provided with a pressing plate, the clamp body is further fixedly provided with an angular positioning column, the angular positioning column is fixedly provided with a positioning cushion block, a proximity switch sensor is mounted on the angular positioning column, a data line is arranged on the proximity switch sensor and connected with a machine tool control system, and a through hole allowing the proximity switch sensor to penetrate is formed in the positioning cushion block. The crankshaft keyseat mistake-proofing positioning device canbe widely applied to numerical control machine tool equipment.

Description

technical field [0001] The invention relates to a positioning device, in particular to an anti-error positioning device for crankshaft milling key grooves. Background technique [0002] The crankshaft is one of the main parts of the piston engine. Its function is to convert the gas force transmitted by the piston and the connecting rod into a torque output to drive the power device connected to it. The keyway on the crankshaft is the key part of the power transmission of the crankshaft, and its machining position accuracy directly affects the assembly quality of the crankshaft and the performance of bearing impact load and transmitting power. [0003] At present, when machining the crankshaft keyway, the operator usually needs to perform angular positioning of the connecting rod journal, but in actual operation, the angular positioning of the connecting rod journal is inaccurate or there are iron filings and other impurities in the angular positioning. , causing the symmetr...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the technical problem of inaccurate positioning of the existing crankshaft milling keyway positioning device, which leads to out-of-tolerance symmetry of the keyway, and provides a crankshaft milling keyway error prevention that can accurately locate the position of the crankshaft keyway and avoid the interference of impurities such as iron filings at the positioning position. Positioning means

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