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A Constant Linear Velocity Control Method for Workpiece Contour Detection

A technology of constant linear velocity and workpiece contour, applied in the field of inspection, can solve problems such as affecting the accuracy of contour fitting, and achieve the effect of good constant linear velocity control effect.

Active Publication Date: 2020-06-05
GUANGDONG SAMSUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this detection method, for non-circular workpieces, the sampling on the contour is not equally spaced, which affects the fitting accuracy of the contour

Method used

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  • A Constant Linear Velocity Control Method for Workpiece Contour Detection
  • A Constant Linear Velocity Control Method for Workpiece Contour Detection
  • A Constant Linear Velocity Control Method for Workpiece Contour Detection

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Embodiment Construction

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, refer to the attached Figure 3-7 And corresponding formulas, the structure and principle of the constant linear velocity control of the present invention are further described in detail.

[0020] The present invention provides a constant linear velocity control method during workpiece contour detection, the specific steps are as follows:

[0021] S1. Build a measurement and control platform

[0022] The platform has an XY translation axis and a C rotation axis, as well as a laser displacement sensor; the workpiece to be measured is set on the platform, and is driven by the axis for translation and rotation. Through correct movement, the normal vector of the surface of the workpiece and the laser sensor can be guaranteed during the detection process. In the same direction, while keeping the focus of the laser sensor always on the surface contour of the workpiec...

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Abstract

A constant linear velocity control method for workpiece contour detection. The position of the laser displacement sensor is fixed. By controlling the translation and rotation of the worktable, the workpiece and the focus of the laser displacement sensor will move relative to each other. During the movement, the focus of the sensor is always on the workpiece. The surface of the contour, and the linear velocity of the laser sensor focus relative to the workpiece motion is kept constant. The invention solves the problem of medium angle of rotation but unequal distance on the contour in the traditional contour detection, has the advantage of constant linear speed movement of the workpiece contour, and ensures uniform selection of detection points on the workpiece contour.

Description

technical field [0001] The invention belongs to the detection technology field of mechanical manufacturing, and more specifically relates to a constant linear velocity control method during workpiece contour detection. Background technique [0002] The traditional detection method of the workpiece contour is to keep a certain distance between the workpiece and the sensor and keep it vertical, rotate the workpiece at an equal angle, and read the sensor signal point by point. In this detection method, for non-circular workpieces, the sampling on the contour is not equally spaced, which affects the fitting accuracy of the contour. Contents of the invention [0003] The invention discloses a constant linear velocity control method during workpiece contour detection. [0004] The layout of the workpiece and the laser displacement sensor of the present invention is that the position of the laser displacement sensor is fixed. In order to meet the requirement of equidistant sampl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24G05B19/416
CPCG01B11/24G05B19/416
Inventor 周向东唐小琦卢少武颜昌亚张庆祥曾祥兵
Owner GUANGDONG SAMSUN TECH CO LTD