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Equipment for engraving inner wall of revolving body part by adopting laser processing mode

A technology of laser processing and rotary body, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc. It can solve the problem that it is difficult to ensure that the laser beam is perpendicular to the inner wall of the product, the laser focus cannot be fixed, and the inner wall of the part cannot be engraved, etc. problem, achieve the effect of saving debugging time, simple structure and strong versatility

Active Publication Date: 2019-09-24
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. The existing laser inner wall processing technology is only used for laser repair of the inner wall of the product, and the inner wall of the part cannot be engraved by laser processing
[0009] 2. The existing laser inner wall processing technology adopts focusing at the end point. Since the focusing lens is used, the focusing lens needs to be replaced each time for parts of differe

Method used

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  • Equipment for engraving inner wall of revolving body part by adopting laser processing mode
  • Equipment for engraving inner wall of revolving body part by adopting laser processing mode
  • Equipment for engraving inner wall of revolving body part by adopting laser processing mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The connection relationship and positional relationship of each component in Embodiment 1 are the same as the basic structure. Embodiment 1 mainly explains the structure and working principle of the rotating clamping assembly:

[0069] Such as figure 2 and image 3 As shown, the rotary clamping assembly 3 includes a fixed frame 31, a rotating motor 32, a gear 33, a ring gear 34, a first cylinder 35, and a claw 36; the fixed frame 31 is installed on the X-direction moving assembly, and the fixed frame 31 includes a bottom plate 311 and the side plate 312 fixedly connected to the edge of the bottom plate 311, the center of the bottom plate 311 is provided with a through hole whose diameter is larger than the outer diameter of the processed rotary part 12;

[0070] The ring gear 34 is located in the fixed frame 31 and arranged coaxially with the through hole;

[0071] There are at least three gears 33 (4 gears adopted in this example), and they are evenly distributed on...

Embodiment 2

[0075] The connection relationship and positional relationship of each component in embodiment 2 are the same as embodiment 1, and embodiment 2 mainly explains the structure and working principle of the X-direction positioning assembly 4:

[0076] Such as Figure 4 As shown, the X-direction positioning assembly 4 includes a fixed vertical plate 41, a second cylinder 42, a bearing 43 and a thimble 44; the fixed vertical plate 41 is fixedly connected to the X-direction moving assembly 1, and the second cylinder 42 is fixed on the fixed vertical plate 41 , the piston end of the second cylinder 42 is fixedly installed with a bearing, and one end of the thimble 44 is inserted in the bearing 43 inner hole, and the other end stretches out of the bearing 43 inner hole; the piston end of the second cylinder 42 moves along the X direction. Preferably, the outer ring of the bearing 43 is fixedly connected with the piston end of the second cylinder 42 .

[0077] Its working principle is:...

Embodiment 3

[0079] Embodiment 3, the connection relationship and positional relationship of each component in embodiment 3 are the same as embodiment 1 and 2, and embodiment 3 mainly is that distance measuring sensor 13 is installed on support frame 5, and distance measuring sensor 13 is positioned at the two sides. The reflected light path of the chromatic mirror 10.

[0080] The main purpose of setting up the distance measuring sensor is: to be able to judge whether the position of the processed rotary parts after initial assembly is accurate, so as to further ensure the precision and reliability of post-processing.

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PUM

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Abstract

The invention discloses equipment for engraving the inner wall of a revolving body part by adopting a laser processing mode. Pattern engraving on the inner walls of revolving body parts with various sizes can be realized. The equipment comprises an X-direction moving assembly, a Y-direction moving assembly, a rotary clamping assembly, an X-direction positioning assembly, a support frame, a laser device, a beam expander, a reflecting mirror, a three-dimensional scanning galvanometer, a dichroic mirror and a fast reflecting mirror; the machined revolving body part is installed in the rotary clamping assembly, and the closed end of the machined revolving body part is matched with the X-direction positioning assembly to realize rotation of the machined revolving body part and positioning of the machined revolving body part in the X direction and the Y direction; the rotary clamping assembly and the X-direction positioning assembly are mounted on the X-direction moving assembly; the beam expander, the reflecting mirror, a three-dimensional scanning galvanometer, the dichroic mirror and the fast reflecting mirror are sequentially arranged on a laser light path in which the laser device emits light; the three-dimensional scanning galvanometer is mounted on the Y-direction moving assembly; and one end of the support frame is connected with the Y-direction moving assembly, and the fast reflecting mirror is mounted at the other end of the support frame.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and in particular relates to a device for engraving the inner wall of a revolving body part by adopting a laser processing method. [0002] technical background [0003] Laser engraving technology is currently a very mature technology, but engraving is based on the outer surface of the part, or engraving on the plane, and there is still a blank in the pattern engraving on the inner wall of the part. [0004] Based on the special requirements of some aerospace special devices, it is necessary to implement processes such as drag reduction and pattern engraving on the inner wall of the part. [0005] The existing laser inner wall processing is only a laser repair technology for the inner wall of the part, and most of them are carried out by laser powder feeding. This technology belongs to the field of additive manufacturing; [0006] For example, the Chinese patent, application number: CN20...

Claims

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Application Information

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IPC IPC(8): B23K26/362B23K26/046B23K26/70
CPCB23K26/046B23K26/362B23K26/702
Inventor 安永刚李明
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI