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Detection method of cam profile detection system based on direct drive motor

A direct-drive motor and detection system 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 good system dynamic performance, low lead screw load, and high dynamic stiffness. Effect

Inactive Publication Date: 2015-04-29
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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  • Detection method of cam profile detection system based on direct drive motor
  • Detection method of cam profile detection system based on direct drive motor
  • Detection method of cam profile detection system based on direct drive motor

Examples

Experimental program
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Effect test

Embodiment 1）

[0021] 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）

[0045] On the basis of Embodiment 1, this embodiment has the following modifications:

[0046] 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:

[0047] 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 ;

[0048] 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 detection method of a cam profile detection system based on a direct drive motor, which is simple in structure and higher in detection precision and efficiency. The cam profile detection system comprises the direct drive motor, a mandrel coaxially fixed to a rotor of the direct drive motor and used for driving a cam to synchronously and coaxially rotate, a lead screw nut pair horizontally arranged on one side of the cam, a laser measurement head arranged on a movable nut of the lead screw nut pair, a grating ruler displacement sensor for measuring the horizontal displacement of the movable nut, a round grating arranged in a fixing seat of the direct drive motor and used for detecting a rotation angle of the rotor, and an industrial personal computer, wherein the industrial personal computer is used for controlling the direct drive motor and the lead screw nut pair to act, and obtaining the external profile data of the cam according to the measurement data of the laser measurement head, the grating ruler displacement sensor and the round 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 detection method of a cam profile detection system based on a direct drive motor. [0003] Background technique [0004] 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. an...

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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