Compensation device and method of numerical control cam shaft grinding machine grinding deformation

Abstract

The invention provides a compensation device and a method of numerical control cam shaft grinding machine grinding deformation. Two compensation device bases are arranged in the direction paralleled with the axial line direction of a cam shaft main shaft on one side of a cam shaft grinding machine, the bases are arranged on two guide rails, and capable of moving along the guide rails and being fastened on the guide rails through locking screws. The compensation device is arranged on the bases and composed of a servo motor, a lead screw, a nut, a connection rod, a sliding block, a roller, a control system and the like. After a cam shaft blank is clamped on a main shaft, the compensation device bases are adjusted to the position where the cam shaft is provided with a bearing and locked tightly, the diameter of the position where the cam shaft is provided with the bearing is input into the control system of the compensation device, a starting button is pressed, and then the motor of the compensation device drives the sliding block to clamp the cam shaft tightly. The compensation device and the method of numerical control cam shaft grinding machine grinding deformation have the advantages that deformation of the cam shaft because of grinding force can be compensated conveniently and machining accuracy of the cam shaft can be improved under the precondition that normal functions of the numerical control cam shaft grinding machine are not affected.

Description

technical field [0001] The invention relates to a grinding deformation compensating device for a numerically controlled camshaft grinder that supports a camshaft in three directions to counteract grinding deformation. The device includes a mechanical mechanism, an electrical control system and a control method. The invention belongs to the fields of precision machining technology and industrial automation control. Background technique [0002] Camshafts are widely used in automobile engines and diesel engines to control the intake, exhaust and fuel injection of the engine. Due to the high engine speed, the accuracy of the camshaft has a great influence on the intake and exhaust performance of the engine, the fuel injection performance and the overall performance of the machine. The performance hit is huge. [0003] The camshaft is usually cast out of the camshaft blank first, then the blank is turned, and finally sent to the CNC camshaft grinder for grinding. Grinding is th...

AI Technical Summary

Problems solved by technology

[0006] At present, the commonly used method to deal with the grinding deformation of the camshaft is to add a support at the bottom of the camshaft. The upper part of the support is an arc-shaped opening, and the arc-shaped opening matches the camshaft bearing installation. However, this support can only offset the cam shaft When the shaft is under force in the lower left direction, and the diameter of the camshaft bearing installation changes, a new support must be replaced, which affects work efficiency

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