CN213857595U

CN213857595U - Laser power adjustment mechanism

Info

Publication number: CN213857595U
Application number: CN202022286962.1U
Authority: CN
Inventors: 胡剑
Original assignee: Suzhou Hanli Photoelectric Technology Co ltd
Current assignee: Suzhou Hanli Photoelectric Technology Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-08-03
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a laser power adjusting mechanism, which comprises a mounting seat and an adjusting component positioned on the mounting seat; the adjusting component comprises a driving motor, a rotating shaft driven by the driving motor and a rotating half-wave plate positioned at the end part of the rotating shaft, the rotating shaft is a hollow structure body, the rotating shaft is connected with the driving motor through a synchronous belt structure, the rotating shaft is connected with the mounting seat through a bearing set, the rotating half-wave plate is connected with the synchronous belt structure through a wave plate fixing seat, and the rotating half-wave plate and the rotating shaft are coaxially arranged. The utility model discloses a rotatory half-wave plate of driving motor drive rotates, changes the polarization direction of laser outgoing, and the laser transmissivity after having changed the polarization direction is changed to reach the purpose of laser power regulation, the utility model discloses simple structure, stability is strong, convenient to use, application prospect is comparatively wide.

Description

Laser power adjustment mechanism

Technical Field

The utility model belongs to the technical field of the precision finishing, especially, relate to a laser power adjustment mechanism.

Background

At present, in the field of high-end laser micromachining, such as sapphire wafers, glass wafers and silicon wafer laser cutting, when laser processing is performed, very high requirements are placed on the accuracy and stability of laser power, the power requirements on laser are different when processing is performed at different positions, the power regulation speed of a laser is low, the stability of the light-emitting power of the laser is reduced by frequently regulating the laser power, and the processing requirements cannot be met.

In order to overcome the above mentioned problems of slow power adjustment speed during high-end laser micromachining and unstable power caused by frequent power adjustment to the laser, and to meet the requirement of fast power adjustment, a laser power adjustment mechanism needs to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a laser power adjustment mechanism to solve the problem that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a laser power adjusting mechanism comprises a mounting seat and an adjusting component positioned on the mounting seat; the adjusting component comprises a driving motor, a rotating shaft driven by the driving motor and a rotating half-wave plate positioned at the end part of the rotating shaft, the rotating shaft is a hollow structure body, the rotating shaft is connected with the driving motor through a synchronous belt structure, the rotating shaft is connected with the mounting seat through a bearing set, the rotating half-wave plate is connected with the synchronous belt structure through a wave plate fixing seat, and the rotating half-wave plate and the rotating shaft are coaxially arranged.

In a preferred embodiment of the present invention, the synchronous belt structure comprises a driving pulley, a driven pulley and a synchronous belt for transmission, the driving pulley is located on the driving motor, the driven pulley is connected to the rotating shaft, and the synchronous belt is connected to the driving pulley and the driven pulley.

In a preferred embodiment of the present invention, the wave plate fixing base is located on the driven pulley, and the rotary half-wave plate is mounted on the wave plate fixing base.

In a preferred embodiment of the present invention, the bearing assembly includes an inner pressing ring, a washer, a pressing bearing and an outer pressing ring, and the bearing assembly is engaged with the mounting seat.

In a preferred embodiment of the present invention, the hold-down bearing is located in the mounting seat.

The utility model provides a defect that exists among the background art, the utility model discloses possess following beneficial effect:

the utility model discloses under mount pad and adjusting part's mating reaction, adjusting part includes driving motor, rotation axis and rotatory half-wave plate, rotates through the rotatory half-wave plate of driving motor drive, changes the polarization direction of laser outgoing, and the laser transmissivity after having changed the polarization direction is changed to reach the purpose that laser power adjusted, the utility model discloses simple structure, stability is strong, convenient to use, application prospect is comparatively wide.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic overall structure diagram of the preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention;

in the figure: 1. a mounting seat; 2. an adjustment assembly; 21. a drive motor; 22. a rotating shaft; 23. rotating the half-wave plate; 3. a synchronous belt structure; 31. a driving pulley; 32. a driven pulley; 33. a synchronous belt; 4. a bearing set; 41. an inner pressing ring; 42. a gasket; 43. pressing the bearing; 44. an outer pressing ring; 5. wave plate fixing seat.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.

As shown in fig. 1 and fig. 2, a laser power adjusting mechanism includes a mounting base 1 and an adjusting assembly 2 located on the mounting base 1; the adjusting assembly 2 comprises a driving motor 21, a rotating shaft 22 driven by the driving motor 21 and a rotating half-wave plate 23 located at the end of the rotating shaft 22, the rotating shaft 22 is a hollow structure, the rotating shaft 22 is connected with the driving motor 21 through a synchronous belt structure 3, the rotating shaft 22 is connected with the mounting seat 1 through a bearing set 4, the rotating half-wave plate 23 is connected with the synchronous belt structure 3 through a wave plate fixing seat 5, and the rotating half-wave plate 23 and the rotating shaft 22 are coaxially arranged.

In this embodiment, the rotating half-wave plate 23 is installed in the wave plate fixing seat 5, the laser vertically enters through the hollow structure of the rotating shaft 22 and the rotating half-wave plate 23, when the driving motor 21 drives the rotating shaft 22 to rotate through the synchronous belt structure 3, the incident angle of the laser is changed, and the power adjustment is realized, after the laser enters, the polarization direction of the laser emitting is changed through the rotating half-wave plate 23, the laser transmittance after the polarization direction is changed will also be changed, and therefore the adjustment of the laser power is realized.

Specifically, the synchronous belt structure 3 includes a driving pulley 31, a driven pulley 32 and a synchronous belt 33 for transmission, the driving pulley 31 is located on the driving motor 21, the driven pulley 32 is connected with the rotating shaft 22, the synchronous belt 33 connects the driving pulley 31 with the driven pulley 32, and the rotation of the rotating shaft 22 and the half-wave plate 23 is realized by the synchronous belt structure 3.

Specifically, the wave plate fixing base 5 is located on the driven pulley 32, and the half-wave plate 23 is attached to the wave plate fixing base 5.

In the present embodiment, the bearing set 4 includes an inner pressing ring 41, a washer 42, a pressing bearing 43 and an outer pressing ring 44, the bearing set 4 is matched with the mounting base 1, the presence of the pressing bearing 43 can ensure the stable rotation of the rotating shaft 22, and the presence of the inner pressing ring 41, the washer 42 and the outer pressing ring 44 can effectively fix the pressing bearing 43.

Specifically, the hold-down bearing 43 is located within the mount 1.

All in all, the utility model discloses under mount pad 1 and adjusting part 2's cooperation, adjusting part 2 includes driving motor 21, rotation axis 22 and rotatory half-wave plate 23, rotates through driving motor 21 drive rotatory half-wave plate 23, changes the polarization direction of laser outgoing, and the laser transmissivity after having changed the polarization direction is changed to reach the purpose that laser power adjusted, the utility model discloses simple structure, stability is strong, and convenient to use, application prospect is comparatively wide.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The laser power adjusting mechanism is characterized by comprising a mounting seat and an adjusting component positioned on the mounting seat; the adjusting component comprises a driving motor, a rotating shaft driven by the driving motor and a rotating half-wave plate positioned at the end part of the rotating shaft, the rotating shaft is a hollow structure body, the rotating shaft is connected with the driving motor through a synchronous belt structure, the rotating shaft is connected with the mounting seat through a bearing set, the rotating half-wave plate is connected with the synchronous belt structure through a wave plate fixing seat, and the rotating half-wave plate and the rotating shaft are coaxially arranged.

2. The laser power adjustment mechanism of claim 1, wherein the timing belt structure comprises a driving pulley, a driven pulley and a timing belt for transmission, the driving pulley is disposed on the driving motor, the driven pulley is connected to the rotating shaft, and the timing belt connects the driving pulley and the driven pulley.

3. The laser power adjustment mechanism of claim 2, wherein the wave plate fixing seat is located on the driven pulley, and the rotating half-wave plate is mounted on the wave plate fixing seat.

4. The laser power adjustment mechanism of claim 1, wherein the bearing set comprises an inner clamping ring, a washer, a compression bearing and an outer clamping ring, and the bearing set is engaged with the mounting seat.

5. A laser power adjustment mechanism according to claim 4, characterized in that the hold-down bearing is located in the mounting seat.