Automatic orienting device

Abstract

The invention belongs to the technical field of relief grinding lathes, and discloses an automatic orienting device, wherein a main shaft and an auxiliary shaft are installed on a box body in parallel, one end of the main shaft and one end of the auxiliary shaft respectively extend out of the box body, a location turbine and a gear 1 are installed on the main shaft at interval and are respectively supported by a unilateral bearing, a location worm which is meshed with and driven by the location turbine extends out of the box body and is connected with a servomotor, a gear 2, a power turbine and a gear 3 are sequentially installed on the auxiliary shaft, a power worm which is meshed with and driven by the power turbine extends out of the box body and is connected with the motor shaft of the servomotor, the gear 1 is meshed with the gear 2, the gear 3 is installed on the auxiliary shaft which extends out of the box body, and drives a cam to rotate through a gear transmission mechanism, and the cam and a track which is installed on a working platform are meshed and transferred with each other to drive the box body to move relative to the working platform in a reciprocating way. The invention has the advantages of high speed, high precision, low labor strength and high benefit, and the automatic orienting device is applicable to full automatic servo relief grinding lathes or mechanical transmission devices of the same types.

Description

technical field [0001] The invention belongs to the field of metal cutting machine tools, in particular to an automatic orientation device. Background technique [0002] At present, the grinding machines such as center drill spade grinder and twist drill opening machine all adopt the traditional grinding device with variable center distance of motor axis, non-rolling sliding contact pin cam, manual or three-axis numerical control grinding wheel dresser manual indexing. However, when some machine tools use radial relief grinding movement, the center distance, parallelism and tension between the motor and the grinding wheel are all instantaneously changed, and the amount of change is proportional to the movement distance in a trigonometric function, which is As a result, the rotation speed of the grinding wheel shaft and the grinding wheel fluctuates due to the sudden increase and decrease of the tension force, and the cutting force also increases and decreases accordingly, ca...

AI Technical Summary

Problems solved by technology

However, when some machine tools use radial relief grinding movement, the center distance, parallelism and tension between the motor and the grinding wheel are all instantaneously changed, and the amount of change is proportional to the movement distance in a trigonometric function, which is As a result, the rotation speed of the grinding wheel shaft and the grinding wheel fluctuates due to the sudden increase and decrease of the tension force, and the cutting force also increases and decreases accordingly, causing cutting vibration and even resonance, which affects the workpiece. Processing quality and precision

Furthermore, the center drill scraper mill and the twist drill opening machine are traditional manual loading, manual positioning, and manual visual inspection of the position between the cam and the workpiece, which cannot meet the quality required by the theoretical workpiece processing technology. This phenomenon is called The interference of the contour curve of the cam seriously affects the processing quality and accuracy of the workpiece

The grinding wheel corrector is that the operator holds a bendable slide rule inlaid with a diamond pen and manually corrects the grinding wheel, which has the disadvantages of low precision of grinding wheel correction and high labor intensity, and requires a lot of technical level and work experience of the operator. high

The above-mentioned foreign machine tools use CNC grinding wheel correctors, that is, use CNC multi-axis (3-4 axis) linkage interpolation to complete the correction of the complex space surface of the grinding wheel, but due to the complexity of the technology and high cost, it cannot be purchased in China.

In addition, manual indexing is also one of the main reasons affecting accuracy and work efficiency

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