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Cam profile detection system

A detection system, cam profile technology, applied in measuring devices, instruments, optical devices, etc., can solve the problem of not being able to adapt to cam automatic line production, etc., and achieve the effect of good system dynamic performance, high measurement accuracy and fast speed

Inactive Publication Date: 2015-05-27
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To achieve high-precision and high-efficiency detection of cams, correct processing and evaluation of its errors, and timely and rapid feedback of cam quality information, traditional optical-mechanical measuring instruments and manual data processing methods can no longer adapt to the wide range of cams. The need for automatic line production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0019] see Figure 1-2 , The cam profile detection system based on the direct drive motor of this embodiment includes: a direct drive motor 1 for driving the cam 10 to rotate horizontally and coaxially around a vertical spindle 5, which is arranged horizontally on the side of the direct drive motor 1 The screw nut pair 3 of the screw nut pair 3, the laser measuring head set on the movable nut 3-1 of the screw nut pair 3 and on the side of the cam 10, the grating used to measure the horizontal displacement of the movable nut 3-1 The ruler displacement sensor 4, a circular grating for detecting the rotation angle of the cam 10 and an industrial computer arranged in the fixed seat 1-1 of the direct drive motor 1, and an industrial computer; the industrial computer controls the direct drive motor 1 and the wire The lever nut pair 3 moves, and the outer contour data of the cam 10 is obtained according to the data measured by the laser measuring head 2, the grating scale displacement...

Embodiment 2）

[0043] On the basis of Embodiment 1, this embodiment has the following modifications:

[0044] In order to eliminate the influence of the machining or installation error of the spindle 5 on the accuracy of the cam profile detection, the detection method of the cam profile detection system includes:

[0045] A. Detect the outer edge data of the mandrel 5: when the mandrel 5 starts to rotate one circle, the distance between the laser measuring head 2 and the outer circle of the mandrel 5 is the first distance Always control within the range of the laser measuring head 2, while detecting and recording the rotation angle θ i Corresponding first spacing , And the mover 3-1 is horizontally aligned with the hard zero The second distance ;

[0046] B. Fit the cam 10 on the spindle 5 without clearance, if the outer contour data of the cam 10 is known , While starting to control the cam 10 to rotate one circle, control the laser measuring head 2 relative to the outer contour of the cam 10 ...

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Abstract

The invention provides a cam profile detection system based on a direct driving motor, and the system is simple in structure and high in detection precision and efficiency. The system comprises the direct driving motor, a mandrel, a feed screw nut pair, a laser measurement head, a grating ruler displacement sensor, a circular grating and an industrial personal computer, wherein the mandrel is coaxially fixedly arranged on the rotor of the direct driving motor and is used for driving a cam to coaxially rotate synchronously; the feed screw nut pair is horizontally arranged at one side of the cam; the laser measurement head is arranged on the movable nut of the feed screw nut pair; the grating ruler displacement sensor is used for measuring the horizontal displacement amount of the movable nut; the circular grating is arranged in the fixed seat of the direct driving motor and is used for detecting the rotation angle of the rotor; and the industrial personal computer is used for controlling the actions of the direct driving motor and the feed screw nut pair, and obtaining outer profile data of the cam according to data obtained by the laser measurement head, the grating ruler displacement sensor and the circular grating.

Description

[0001] This application is a divisional application, the application number of the original application: 201110114560.6, the application date: 2011.05.04, the title of the invention: a cam profile detection system based on a direct drive motor. Technical field [0002] The invention relates to a cam profile detection system based on a direct-drive motor and a detection method thereof. Background technique [0003] Cam mechanisms are widely used in various automated machinery, precision instruments, automated control systems, etc. It is necessary to detect the cam with high precision and efficiency, and correctly process and evaluate its various errors, and feedback the quality information of the cam in a timely and fast manner. The traditional optical mechanical measuring instrument and manual data processing methods can no longer adapt to the wide range of cams. The use of automatic production lines is needed. With the rapid development of the automobile industry and engineering...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24
Inventor 丁仕燕
Owner CHANGZHOU INST OF TECH
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