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A metal multi-faceted scanning prism processing method capable of on-line detection

A processing method and surface scanning technology, which is applied in the direction of metal processing equipment, prisms, manufacturing tools, etc., can solve the problem of positioning error affecting the angular accuracy of each scanning surface

Active Publication Date: 2019-02-15
SUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the positioning error introduced by multiple clamping affects the angular accuracy of each scanning surface of the angle

Method used

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  • A metal multi-faceted scanning prism processing method capable of on-line detection
  • A metal multi-faceted scanning prism processing method capable of on-line detection
  • A metal multi-faceted scanning prism processing method capable of on-line detection

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Experimental program
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Effect test

Embodiment 1

[0031] A metal multi-faceted scanning prism processing method capable of on-line detection, with attached figure 1 As shown, the specific technical scheme is as follows:

[0032] 1) processing standard block step: process a polyhedral prism whose precision is better than the design parameters of the metal multi-faceted scanning prism as the standard block 2, the number of scanning faces of the metal multi-faceted scanning prism is recorded as N, the number of sides on the standard block also N;

[0033] 2) Install and fix the standard block on the rotating shaft 4 of the electric control turntable 1, wherein the normal direction of any side on the standard block is perpendicular to the rotating shaft of the electric control turntable;

[0034]3) The metal multi-faceted scanning prism blank 3 to be processed is also clamped on the rotating shaft of the electric control turntable, wherein the normal direction of the cross-section of the metal multi-face scanning prism blank is ...

Embodiment 2

[0039] attached figure 2 A metal multi-faceted scanning prism processing method that can realize on-line detection is shown, and the specific technical scheme is as follows:

[0040] 1) Process standard block step: process a polygonal prism whose precision is better than the design parameters of the metal polygonal scanning prism as standard block 2;

[0041] 2) Install and fix the standard block on the rotating shaft 4 of the electric control turntable 1, wherein the normal direction of the cross section of the standard block is parallel to the rotating shaft of the electric control turntable; the rotating shaft 2 of the electric control turntable 1 communicates with several driven The rotating shaft 9 is connected, and at least one metal multi-faceted scanning prism mirror blank 3 can be clamped on each driven rotating shaft. When the rotating shaft of the electric control turntable rotates, the driven rotating shaft also rotates at the same angle;

[0042] 3) Clamping a p...

Embodiment 3

[0048] On the basis of the technical solution of Embodiment 1, the self-collimation positioning optical path 5 is as follows: image 3 As shown, it is composed of a parallel light laser 10, a beam splitter 11, a plane mirror 14, and an image screen 15, wherein the parallel light emitted by the parallel light laser is incident on the beam splitter, and the light reflected by the beam splitter is placed vertically on the optical path as a reference light 12 After being reflected by the plane mirror in the middle, it is incident to the image screen, and the light transmitted by the beam splitter is incident to any side of the standard block as the detection light 13; the electric control turntable is rotated, and the detection light is reflected to the image screen 15 by the side, Interference fringes are formed on the image screen. The optical path is actually a Michelson interference optical path, and the rotation angle of the electric control turntable can be controlled more p...

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Abstract

The invention discloses a metal multi-faceted scanning prism processing method capable of realizing online detection, which solves the problem that multiple clamping and positioning errors affect the processing accuracy of the scanning surface angle; the rotation angle of the rotating shaft is precisely controlled through the self-collimation positioning optical path and the standard block, At the same time, adjust the self-collimation detection optical path based on the first scanning surface of the processed metal multi-faceted scanning prism, and rotate the shaft. The optical path and the nth scanning surface of the first scanning surface also realize self-collimation; the use of this technical solution can complete the online detection and processing of metal multi-faceted scanning prisms on a two-axis machine tool without relying on high-precision CNC rotating shafts, greatly Improve processing efficiency, processing accuracy and processing consistency.

Description

technical field [0001] The invention belongs to the technical field of optical processing, and in particular relates to a processing method of a multi-faceted scanning prism. Background technique [0002] Multi-faceted scanning prisms have multiple reflective surfaces and are the core optical devices in laser equipment such as scanners, copiers, and code scanners. When in use, it is usually installed on the rotating shaft of the motor. Through the high-speed rotation of the multi-faceted scanning prism, a large-scale, ultra-high-speed, high-precision and high-repeatability laser beam scanning can be realized. The angle accuracy, surface quality and other factors will directly affect the scanning. Accuracy and effect, so the angle processing accuracy of each reflective surface is very high. [0003] At present, the processing of multi-faceted scanning prisms in China is mainly realized by CNC lathes with rotating shafts, the number of which can be processed at one time is li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B5/00B23B9/04B23B25/06G02B5/04
CPCB23B5/00B23B9/02B23B25/06G02B5/04
Inventor 黄启泰
Owner SUZHOU UNIV