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Cam profile detection system

A detection system and cam profile technology, applied in measuring devices, instruments, optical devices, etc., can solve problems such as inability to adapt to the production of automatic cam lines, and achieve the effects of good system dynamic performance, small measurement error, and high servo rigidity

Inactive Publication Date: 2013-02-20
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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  • Cam profile detection system

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Comparison scheme
Effect test

Embodiment 1）

[0019] See Figure 1-2 The cam profile detection system based on the direct-drive motor of the present embodiment includes: a direct-drive motor 1 for driving the cam 10 to rotate horizontally and coaxially around the vertical mandrel 5, horizontally arranged on one side of the direct-drive motor 1 The lead screw nut pair 3, the laser measuring head 2 arranged on the movable nut 3-1 of the lead screw nut pair 3 and on the side of the cam 10, the grating for measuring the horizontal displacement of the movable nut 3-1 Ruler displacement sensor 4, the circular grating used to detect the rotation angle of cam 10 in the fixed seat 1-1 that is located at direct-drive type motor 1, and industrial computer; Said industrial computer controls described direct-drive type motor 1 and wire The lever nut pair 3 moves, and obtains the outer contour data of the cam 10 according to the data measured by the laser measuring head 2, the grating scale displacement sensor 4 and the circular gratin...

Embodiment 2）

[0044] On the basis of Embodiment 1, this embodiment has the following modifications:

[0045] In order to eliminate the processing or installation error of the mandrel 5, the impact on the cam profile detection accuracy, the detection method of the cam profile detection system includes:

[0046] A. Detect the outer edge data of the mandrel 5: when the mandrel 5 starts to rotate for one revolution, the distance between the laser measuring head 2 and the outer circle of the mandrel 5 is the first distance Always control within the measuring range of the laser measuring head 2, and simultaneously detect and record the rotation angle θ i corresponding to the first spacing , and the mover 3-1 is horizontally aligned with the hard zero position The spacing of the second spacing ;

[0047] B. Fit the cam 10 on the mandrel 5 without clearance, if the outer contour data of the cam 10 is known , then at the same time when the cam 10 is controlled to rotate one revolution, the...

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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 automatic machinery, precision instruments, automatic control systems, etc. To achieve high-precision, high-efficiency detection of cams, correct processing and evaluation of its various 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 is adopted. With the rapid development of the automobile industry, engineering machinery, etc. and th...

Claims

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Application Information

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IPC IPC(8): G01B11/24
Inventor 丁仕燕
Owner CHANGZHOU INST OF TECH
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