Laser cleaning device based on double-polygon prism
By employing a laser cleaning device with a double polygonal prism, and utilizing a two-dimensional filling motion mechanism driven by a reflective prism and a motor, the problems of low efficiency and over-ablation in traditional galvanometer scanning cleaning systems are solved, achieving efficient cleaning and improved quality.
Patent Information
- Application Number
- CN202422590882.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Traditional two-dimensional galvanometer scanning cleaning systems have low cleaning efficiency and poor cleaning quality, especially at the near ends of the galvanometer swing range where over-ablation is likely to occur.
A laser cleaning device based on a double polygonal prism is adopted. By vertically setting the reflecting prism I and reflecting prism II and driving it with a motor, two-dimensional filling laser cleaning is achieved, replacing the traditional galvanometer oscillation motion mechanism.
It improved cleaning efficiency, eliminated over-burning at the near ends of both sides of the cleaning range, and improved cleaning quality.
Smart Images
Figure CN223337970U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of laser cleaning, and in particular relates to a laser cleaning device based on a double polygonal prism. Background Art
[0002] With the increasing popularity of laser cleaning technology, further improving cleaning quality and efficiency has become a research hotspot in laser cleaning technology. Traditional two-dimensional galvanometer scanning cleaning systems use a galvanometer deflection motion mechanism, in which the galvanometer swings back and forth at a certain angle.
[0003] The traditional two-dimensional galvanometer scanning cleaning system has the following defects:
[0004] (1) Since the oscillation speed of the galvanometer is limited by an upper limit, the cleaning efficiency is low;
[0005] (2) Over-ablation is prone to occur at the proximal ends of the galvanometer's cleaning range, resulting in poor cleaning quality. Utility Model Content
[0006] The technical problem to be solved by the utility model is to make up for the deficiencies of the prior art and provide a laser cleaning device based on a double polygonal prism.
[0007] To solve the above technical problems, the technical solution of the present utility model is:
[0008] A laser cleaning device based on a double polygonal prism comprises a reflecting prism I and a reflecting prism II; the reflecting prism I is in the shape of an m-prism, comprising two mutually parallel end faces I and m mutually parallel reflecting mirror faces I, m≥3, and the m reflecting mirror faces I are arranged in a circular array around a rotation axis I; the reflecting prism II is in the shape of an n-prism, comprising two mutually parallel end faces II and n mutually parallel reflecting mirror faces II, n≥3, and the n reflecting mirror faces II are arranged in a circular array around a rotation axis II; the end faces I and II are perpendicular to each other, and the rotation axis I and end faces II are perpendicular to each other; the reflecting mirror face I is used to reflect an incident laser beam onto the reflecting mirror face II, and the reflecting mirror face II is used to reflect a laser beam reflected from the reflecting mirror face I onto a focusing mirror, and the focusing mirror is used to focus the laser beam reflected from the reflecting mirror face II to form an outgoing laser beam; the motor I is used to drive the reflecting prism I to rotate around the rotation axis I, and the motor II is used to drive the reflecting prism II to rotate around the rotation axis II.
[0009] Furthermore, a protective mirror is included, and the protective mirror is used to protect the focusing mirror.
[0010] Furthermore, it also includes a device housing, the reflecting prism I and the reflecting prism II are both arranged in the inner cavity of the device housing, and the motor I and the motor II are both fixedly connected to the device housing.
[0011] Furthermore, it also includes a motor protection shell I and a motor protection shell II, both of which are fixedly connected to the device housing, the motor I is arranged in the inner cavity of the motor protection shell I, and the motor II is arranged in the inner cavity of the motor protection shell II.
[0012] The beneficial effects that can be achieved by the utility model are as follows: two-dimensional filling-type laser cleaning is realized by adopting rotating reflecting prism I and rotating reflecting prism II which are arranged perpendicular to each other, the motion mechanism of driving galvanometer deflection is replaced by rotating prism mechanism, which is not constrained by the upper limit of galvanometer swing speed, thereby improving cleaning efficiency; due to the change of motion mechanism, it is unexpectedly found that the over-ablation phenomenon that is easy to occur at the proximal positions on both sides of the cleaning range is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural diagram of an embodiment of the present utility model.
[0014] Figure 2 It is a front view of an embodiment of the present utility model.
[0015] Figure 3 It is a side view of an embodiment of the present utility model.
[0016] In the figure: 1-incident laser beam, 2-reflecting prism I, 201-end face I, 202-reflecting mirror surface I, 3-motor I, 4-motor II, 5-reflecting prism II, 501-end face II, 502-reflecting mirror surface II, 6-focusing mirror, 7-protective mirror, 8-device housing, 9-motor protection shell I, 10-motor protection shell II, 11-outgoing laser beam, 12-rotation axis I, 13-rotation axis II. DETAILED DESCRIPTION
[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0018] like Figure 1-Figure 3As shown, a laser cleaning device based on a double polygonal prism includes a device housing 8 and a reflective prism I2 and a reflective prism II5 disposed within the inner cavity of the device housing 8. Reflective prism I2 is shaped like a hexagonal prism, comprising two mutually parallel end faces I201 and six mutually parallel reflective mirror faces I202. The six reflective mirror faces I202 are arranged in a circular array around a rotation axis I12. Reflective prism II5 is shaped like a hexagonal prism, comprising two mutually parallel end faces II501 and six mutually parallel reflective mirror faces II502. The six reflective mirror faces II502 are arranged in a circular array around a rotation axis II13. The end faces I201 of reflective prism I2 and the end faces II501 of reflective prism II5 are perpendicular to each other, and the rotation axis I12 of reflective prism I2 is perpendicular to the end faces II501 of reflective prism II5. Reflecting mirror surface I 202 is used to reflect the incident laser beam 1 toward reflecting mirror surface II 502. Reflecting mirror surface II 502 is used to reflect the laser beam reflected from reflecting mirror surface I 202 toward focusing mirror 6. Focusing mirror 6 is used to focus the laser beam reflected from reflecting mirror surface II 502 to form an outgoing laser beam 11. Also included is a protective mirror 7, which is used to protect focusing mirror 6. Both focusing mirror 6 and protective mirror 7 are fixedly connected to the device housing 8. Motor I 3 is used to drive reflecting prism I 2 to rotate about rotation axis I 12. Motor II 4 is used to drive reflecting prism II 5 to rotate about rotation axis II 13. Both motors I 3 and II 4 are fixedly connected to the device housing 8. Also included are motor protective housings I 9 and II 10. Both motor protective housings I 9 and II 10 are fixedly connected to the device housing 8. Motor I 3 is disposed within the inner cavity of motor protective housing I 9, and motor II 4 is disposed within the inner cavity of motor protective housing II 10.
[0019] The principle of this embodiment is as follows: the reflecting prism I2 and the reflecting prism II5 are driven by motors I3 and II4 respectively to rotate, the incident laser beam 1 is incident on the reflecting mirror surface I202 of the reflecting prism I2, the laser beam is reflected by the rotating reflecting mirror surface I202 to the reflecting mirror surface II502 of the reflecting prism II5 to form a laser line, and the laser line is then reflected by the rotating reflecting mirror surface II502 and passes through the focusing mirror 6 and the protective mirror 7 to form a two-dimensional laser filling on the surface of the cleaned substrate.
Claims
1. A laser cleaning device based on a double polygonal prism, characterized by: The invention comprises a reflecting prism I (2) and a reflecting prism II (5); the reflecting prism I (2) is in the shape of an m-prism, comprising two mutually parallel end faces I (201) and m mutually parallel reflecting mirror faces I (202), m≥3, and the m reflecting mirror faces I (202) are arranged in a circular array around a rotation axis I (12); the reflecting prism II (5) is in the shape of an n-prism, comprising two mutually parallel end faces II (501) and n mutually parallel reflecting mirror faces II (502), n≥3, and the n reflecting mirror faces II (502) are arranged in a circular array around a rotation axis II (13); the end face I (201) is parallel to the end face II (501). They are perpendicular to each other, and the rotation axis I (12) and the end face II (501) are perpendicular to each other; the reflective mirror surface I (202) is used to reflect the incident laser beam (1) to the reflective mirror surface II (502), and the reflective mirror surface II (502) is used to reflect the laser beam reflected from the reflective mirror surface I (202) to the focusing mirror (6), and the focusing mirror (6) is used to focus the laser beam reflected from the reflective mirror surface II (502) to form an outgoing laser beam (11); the motor I (3) is used to drive the reflective prism I (2) to rotate around the rotation axis I (12), and the motor II (4) is used to drive the reflective prism II (5) to rotate around the rotation axis II (13).
2. The laser cleaning device based on a double polygonal prism according to claim 1, characterized in that: It also includes a protective mirror (7), which is used to protect the focusing mirror (6).
3. The laser cleaning device based on a double polygonal prism according to claim 1, characterized in that: It also includes a device housing (8), wherein the reflecting prism I (2) and the reflecting prism II (5) are both arranged in the inner cavity of the device housing (8), and the motor I (3) and the motor II (4) are both fixedly connected to the device housing (8).
4. The laser cleaning device based on a double polygonal prism according to claim 3, characterized in that: The device further comprises a motor protection shell I (9) and a motor protection shell II (10), both of which are fixedly connected to the device housing (8), the motor I (3) being arranged in the inner cavity of the motor protection shell I (9), and the motor II (4) being arranged in the inner cavity of the motor protection shell II (10).