Crankshaft follow-up abrasive belt grinding device

Abstract

The invention relates to a crankshaft follow-up abrasive belt grinding device. The device is provided with an abrasive belt used for grinding a crankshaft connecting rod neck, a driving wheel used for driving the abrasive belt and a pair of upper and lower supporting wheels used for supporting and tensioning the abrasive belt, wherein the abrasive belt is wound on the driving wheel and the upper and lower supporting wheels. Under the driving of the driving wheel and the supporting and tensioning effect of the upper and lower supporting wheels, the moving direction of an abrasive belt grinding area is vertical to the X axis. The tangential direction between the abrasive belt and a grinding point of a workpiece is kept unchanged by the device and is always vertical to the reciprocating moving direction (the X axis) of the whole set of device. Compared with the traditional grinding wheel follow-up device of which the tangential direction of the grinding point is changed all the time during the same period, the crankshaft follow-up abrasive belt grinding device has the advantage that the grinding point moves at constant speed (A-B-C-D-A) along with the uniform rotation of the C axis, the principle is simple, and movement control and crankshaft shape error compensation are convenient to perform. The device provided by the invention inherits the characteristic of high efficiency of the traditional abrasive belt grinding, and can be applied to crankshaft rough machining, grinding substitutes turning and milling, the device can also be applied to precise machining of a crankshaft, and control on size and shape is realized.

Description

technical field [0001] The invention relates to a crankshaft grinding device, in particular to a crankshaft follow-up abrasive belt grinding device. Background technique [0002] The high-efficiency finishing of the crankshaft is currently mainly ground with a grinding wheel follower crankshaft grinder. If the headstock rotates at a constant speed, that is, the crankshaft connecting rod neck rotates at a constant speed around the center of rotation of the main journal, the grinding time of the grinding wheel at each grinding point on the connecting rod neck is different. , thus introducing various grinding quality problems. To solve this problem, a complex motion control model needs to be established without changing the grinding device. At the same time, due to the grinding principle of the grinding wheel and the complex motion control, the roundness compensation model for finishing machining is complicated. The invention, based on a simple control model, realizes the uni...

AI Technical Summary

Problems solved by technology

At the same time, due to the grinding principle of the grinding wheel and the complex motion control, the roundness compensation model for finishing is complicated

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