CN220718065U - Vibrating mirror motor fixing device and handheld laser welding gun - Google Patents

Abstract

The utility model discloses a vibrating mirror motor fixing device and a handheld laser welding gun, wherein the vibrating mirror motor fixing device comprises a mounting seat assembly for fixing a vibrating mirror motor (5), the mounting seat assembly comprises a first seat body (2), a second seat body (3) and a first elastic piece connected between the first seat body (2) and the second seat body (3), one end of the vibrating mirror motor (5) is fixedly connected with the second seat body (3), the other end of the vibrating mirror motor is movably arranged in the first seat body (2) in a penetrating manner, and the first seat body (2) and the second seat body (3) are relatively fixed through one or more adjusting pieces (7). The utility model discloses a vibrating mirror motor fixing device and a handheld laser welding gun, which are convenient for adjusting the angle of a vibrating mirror.

Description

Vibrating mirror motor fixing device and handheld laser welding gun

Technical Field

The utility model relates to the field of laser welding guns, in particular to a vibrating mirror motor fixing device and a handheld laser welding gun.

Background

Laser welding is a technique in which laser beam generated by a laser is used to perform optical path conversion and focusing by optical elements such as lenses and mirrors, so that laser energy is concentrated on a weld spot. The hand-held laser welding gun replaces the traditional fixed light path, overcomes the limit of the travel space of the workbench, and is more flexible and convenient.

As shown in fig. 20 to 22, a galvanometer motor used in a conventional hand-held laser welding gun is generally fixed to a laser welding gun housing through a fixing seat 8, the galvanometer motor 5 is inserted into the fixing seat 8 and forms a gap with the fixing seat 8, and 6 bolts 9 arranged at intervals along the radial direction and the axial direction of the galvanometer motor 5 are inserted into a gap 81 from the outer circumferential surface of the fixing seat 8 and abut against the outer circumferential surface of the galvanometer motor 5, so that the galvanometer motor 5 is suspended and fixed in the fixing seat 8.

When the angle of the galvanometer needs to be adjusted, the position of the galvanometer reflected light beam projected onto the gathering lens is usually adjusted by adjusting the depth of the 6 bolts 9 locked into the fixing seat 8, the operation required by adjusting the bolts is extremely troublesome, and the bolts 9 also play a role in fixing the galvanometer motor 5, so that the bolts 9 slide easily on the peripheral surface of the galvanometer motor 5 in the screwing and unscrewing process, the position of the galvanometer motor 5 is greatly changed, the galvanometer angle adjustment fails, and the angle adjustment stability is poor.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The utility model aims to provide a vibrating mirror motor fixing device and a handheld laser welding gun, which are convenient for adjusting the angle of a vibrating mirror.

In order to solve the technical problems, in a first aspect, the utility model provides a vibrating mirror motor fixing device, which comprises a mounting seat assembly for fixing a vibrating mirror motor, wherein the mounting seat assembly comprises a first seat body, a second seat body and a first elastic piece connected between the first seat body and the second seat body, one end of the vibrating mirror motor is fixedly connected with the second seat body, the other end of the vibrating mirror motor is movably arranged in the first seat body in a penetrating manner, and the first seat body and the second seat body are relatively fixed through one or more adjusting pieces.

Preferably, one end of the adjusting piece is in threaded connection with the second seat body, and the other end of the adjusting piece is in abutting connection with the first seat body.

Preferably, the first base comprises a first plate body, the second base comprises a second plate body, one end of the galvanometer motor is fixedly connected with the second plate body, the other end of the galvanometer motor movably penetrates through the first plate body, the first elastic piece is connected between the first plate body and the second plate body, one end of the adjusting piece is arranged outside the end face, away from the first plate body, of the second plate body, and the other end of the adjusting piece penetrates through the second plate body and is in butt joint with the first plate body.

Preferably, the first elastic member is a spring plate, a first avoiding hole for the vibrating mirror motor to penetrate is formed in the spring plate, and the adjusting member penetrates into the spring plate or is arranged outside the spring plate.

Preferably, the first elastic element is a spring, the galvanometer motor is arranged in the spring in a penetrating manner, and the adjusting element is arranged outside the spring.

Preferably, the first elastic piece is an elastic piece, a first avoiding hole for the vibrating mirror motor to penetrate is formed in the elastic piece, at least two first bosses are arranged on the end face of the second plate body, which faces the first plate body, at least two second bosses are arranged on the end face of the first plate body, the first bosses and the second bosses are arranged in a plane where the elastic piece is located in a rotationally symmetrical mode, and the elastic piece is connected between the first bosses and the second bosses.

Preferably, the adjusting members are at least four, wherein the other ends of two adjusting members penetrate through the second plate body, the first boss and the elastic sheet and are in butt joint with the first plate body, and the other ends of the other two adjusting members penetrate through the second plate body and are in butt joint with the first plate body through the elastic sheet and the second boss.

Preferably, the first base body further comprises a first pipe body, the first plate body is connected to the periphery of the first pipe body, a first through hole is formed in the first pipe body, and the vibrating mirror motor movably penetrates through the first through hole.

Preferably, an annular gap for the galvanometer motor to deflect is formed between the galvanometer motor and the first pipe body, and a second elastic piece is arranged in the annular gap.

In a second aspect, the utility model provides a hand-held laser welding gun comprising a housing and a galvanometer motor fixture according to the first aspect connected to the housing.

Compared with the prior art, the utility model has the following advantages:

according to the vibrating mirror motor fixing device, the second base body is connected with the first base body through the first elastic piece, the size of the abutting acting force between the adjusting piece and the first plate body is changed through screwing and unscrewing operations of one or more adjusting pieces, and the elastic force of the first elastic piece is matched, so that the direction and the size of an included angle between the second plate body and the first plate body are adjusted, the angle of the vibrating mirror motor in the first tube body is driven to be adjusted, and the angle adjustment of the vibrating mirror is rapidly achieved.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. Those skilled in the art with access to the teachings of the present utility model can select a variety of possible shapes and scale sizes to practice the present utility model as the case may be. In the drawings:

FIG. 1 is a schematic view showing the structure of a galvanometer motor fixing apparatus according to embodiment 1 of the utility model;

FIG. 2 is an exploded view of a galvanometer motor fixture according to embodiment 1 of the utility model;

FIG. 3 is a cross-sectional view of a galvanometer motor fixture in accordance with embodiment 1 of the utility model;

FIG. 4 is an enlarged schematic view of portion a of FIG. 3;

fig. 5 is a schematic structural view of a first base in embodiment 1 of the present utility model;

fig. 6 is a schematic structural diagram of a second seat in embodiment 1 of the present utility model;

FIG. 7 is a schematic structural diagram of a spring plate in embodiment 1 of the present utility model;

FIG. 8 is a schematic structural view of a galvanometer motor fixture according to embodiment 2 of the utility model;

FIG. 9 is an exploded view of a galvanometer motor fixture according to embodiment 2 of the utility model;

FIG. 10 is a cross-sectional view of a galvanometer motor fixture in accordance with embodiment 2 of the utility model;

FIG. 11 is a schematic view showing the structure of a mounting base assembly in embodiment 2 of the present utility model;

FIG. 12 is a cross-sectional view of the mount assembly of embodiment 2 of the present utility model;

FIG. 13 is a schematic view showing the structure of a galvanometer motor fixing apparatus in embodiment 3 of the utility model;

FIG. 14 is an exploded view of a galvanometer motor fixture in accordance with embodiment 3 of the utility model;

fig. 15 is a schematic structural view of a second seat in embodiment 3 of the present utility model;

fig. 16 is a schematic structural view of a first base in embodiment 3 of the present utility model;

FIG. 17 is a front view of a galvanometer motor fixture in accordance with embodiment 3 of the utility model;

FIG. 18 is a cross-sectional view A-A of FIG. 17;

FIG. 19 is a cross-sectional view B-B of FIG. 17;

FIG. 20 is a schematic view of a prior art galvanometer motor fixture;

FIG. 21 is a cross-sectional view of a prior art galvanometer motor fixture;

fig. 22 is an enlarged schematic view of the portion b in fig. 21.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 19, a galvanometer motor fixing apparatus according to a preferred embodiment of the present utility model includes a mount assembly and a second elastic member 1.

As shown in fig. 2, 3, 9, 10, 14, 18, and 19, the mount assembly includes a first housing 2, a second housing 3, and a first elastic member connected between the first housing 2 and the second housing 3. One end of the vibrating mirror motor 5 is fixedly connected with the second base body 3, the other end of the vibrating mirror motor 5 is movably arranged in the first base body 2 in a penetrating mode, an input end 51 of the vibrating mirror motor 5 is preferably fixedly connected to the second base body 3, and an output end 52 of the vibrating mirror motor is movably arranged in the first base body 2 in a penetrating mode. The output end 52 is connected with a vibrating mirror 6, and the vibrating mirror 6 is positioned outside one end of the first seat body 2 far away from the second seat body 3, and the vibrating mirror 6 is driven to deflect by the vibrating mirror motor 5.

As shown in fig. 4, an annular gap 25 is formed between the galvanometer motor 5 and the first base 2, and the annular gap 25 provides a space for avoiding the galvanometer motor 5 from adjusting the angle in the first base 2. The second elastic member 1 is disposed in the annular gap 25 and is connected between the galvanometer motor 5 and the first base 2, so that the galvanometer motor 5 can be relatively fixed with the first base 2, but is not in direct contact with the first base 2, the annular gap 25 still exists, and the function of adjusting the angle of the galvanometer motor 5 in the first base 2 is reserved. After the vibrating mirror motor 5 and the mounting seat assembly are assembled, even if falling or falling and releasing and other vibration occur, vibration energy can be absorbed through the second elastic piece 1, so that a buffer effect is achieved, the position of the vibrating mirror motor 5 in the first seat body 2 cannot be changed, the vibrating mirror motor cannot collide with the first seat body 2, and the vibrating mirror 6 cannot be offset and/or impact damage caused by vibration.

Preferably, the second elastic member 1 is made of elastic material such as rubber, graphite, etc. In a preferred embodiment, the second elastic member 1 is annular and sleeved outside the galvanometer motor 5, and the galvanometer motor fixing device may include one second elastic member 1, or may include a plurality of second elastic members 1, where the plurality of second elastic members 1 are disposed at intervals along the axis direction of the galvanometer motor 5.

As shown in fig. 5, 11, 12 and 16, the first base 2 includes a first tube 21 and a first plate 22 connected to the outer periphery of the first tube 21, a first through hole 23 is provided in the first tube 21, the galvanometer motor 5 movably penetrates the first through hole 23, and the first tube 21 plays a guiding role for angle adjustment of the galvanometer motor 5. The vibrating mirror motor 5 is connected with the first pipe body 21 through the second elastic element 1, preferably, one or more grooves 24 are formed in the first pipe body 21, the second elastic element 1 is fixedly arranged in the grooves 24 to play a role in positioning, the second elastic element 1 can not change in position along with the angle adjustment of the vibrating mirror motor 5, and the stability of the relative fixation of the vibrating mirror motor 5 and the first seat body 2 is improved.

As shown in fig. 6, 11, 12 and 15, the second base 3 includes a second plate 31 opposite to the first plate 22, and a second through hole 32 is formed in the second plate 31, preferably, the second through hole 32 and the first through hole 23 are coaxially arranged, so as to improve the accuracy of installation of the galvanometer motor. The second plate 31 is further provided with a notch 33, the notch 33 is arranged along the radial direction of the second through hole 32, one end of the notch 33 is communicated with the second through hole 32, the other end of the notch is communicated with the outside, and the size of the second through hole 32 can be adjusted by adjusting the size of the notch 33. One end of the vibrating mirror motor 5 is arranged in the second through hole 32 in a penetrating way, and the second through hole 32 is reduced by penetrating the notch 33 through the screw, so that the vibrating mirror motor 5 is clamped by the second seat body 3 to achieve the fixing effect.

The first elastic piece is connected between the first plate body 22 and the second plate body 31, one or more adjusting pieces 7 are arranged on the second seat body 3, one end of each adjusting piece 7 is in threaded connection with the second plate body 31 of the second seat body 3, the other end of each adjusting piece 7 is in butt joint with the first plate body 22 of the first seat body 2, the direction and the size of an included angle between the second plate body 31 and the first plate body 22 can be adjusted by changing the magnitude of the butt joint acting force between the adjusting piece 7 and the first plate body 22 and being matched with the assistance of the elastic force of the first elastic piece, and accordingly the angle of the vibrating mirror motor 5 in the first pipe body 21 can be driven to be adjusted, and the angle adjustment of the vibrating mirror 6 is achieved. Preferably, the adjusting member 7 is provided at the outer periphery of the galvanometer motor 5.

As further shown in fig. 3, 10, 18 and 19, the adjusting member 7 is a bolt, preferably a ball plunger. One end of the adjusting member 7 is arranged outside the end face of the second plate 31 away from the first plate 22, and the other end penetrates the second plate 31 and is abutted against the first plate 22. When the first plate body 22 is fixed, the adjusting piece 7 is screwed, the abutting acting force between the adjusting piece 7 and the first plate body 22 is increased, the first plate body 22 applies a pushing force to the second plate body 31 through the adjusting piece 7, and when the pushing force is larger than the elastic force of the first elastic piece, the second plate body 31 moves in the direction away from the first plate body 22, and at the moment, the first elastic piece is in a stretching state; when the adjusting member 7 is unscrewed, the abutting force between the adjusting member 7 and the first plate body 22 becomes smaller, and when the thrust force exerted by the first plate body 22 to the second plate body 31 through the adjusting member 7 is smaller than the restoring force of the first elastic member, the first elastic member exerts a restoring force to the second plate body 31, so that the second plate body 31 moves in the direction approaching the first plate body 22. In the initial state, the first plate 22 and the second plate 31 are preferably in a parallel state, and when the distance from any one end or more ends of the second plate 31 to the first plate 22 is changed, the second plate 31 is inclined relative to the first plate 22, so that the included angle of the relative position between the vibrating mirror motor 5 and the first tube 21 is changed, and the adjustment of the vibrating mirror position is realized.

The following embodiments further illustrate the construction and application of the galvanometer motor fixture.

Examples

As shown in fig. 1 to 7, in the present embodiment, the first elastic member is a spring 41, preferably, the spring 41 is square, one end of the spring 41 is fixed on the first plate 22 by a screw, the other end of the spring 41 is fixed on the second plate 31 by a screw, one end of the spring 41 is defined to be connected to the upper end of the first plate 22, and the other end is defined to be connected to the lower end of the second plate 31.

As shown in fig. 7, the elastic sheet 41 is provided with a first avoiding hole 411 through which the vibrating mirror motor 5 passes, and preferably, the first avoiding hole 411 is coaxially arranged with the first through hole 23 and/or the second through hole 32. The adjusting piece 7 is arranged in the elastic piece 41 in a penetrating way or is arranged outside the elastic piece 41. It should be noted that, when the adjusting member 7 is inserted into the elastic sheet 41, the elastic sheet 41 is further provided with a second avoiding hole 412 through which the adjusting member 7 is inserted.

Fig. 7 shows that the adjusting member 7 is inserted into the elastic sheet 41, so that the installation space of the adjusting member 7 can be better saved, the volume of the whole device is reduced, and miniaturization is easy to realize. The first avoiding hole 411 and the second avoiding hole 412 are preferably communicated, so that the disposable stamping is facilitated, and the processing steps are simplified.

In this embodiment, two adjusting members 7 are preferably used, and are respectively inserted into the upper end and the lower end of the second plate 31, and correspond to the connection portion of the elastic sheet 41. When the adjusting piece 7 at the upper end is screwed down, the adjusting piece 7 at the lower end is unscrewed, the second plate 31 is inclined from bottom to top in a direction away from the first plate 22, and the vibrating mirror motor 5 and the vibrating mirror 6 are driven to move upwards at the moment; when the adjusting piece 7 at the upper end is unscrewed and the adjusting piece 7 at the lower end is screwed, the second plate body 31 is inclined from bottom to top in the direction close to the first plate body 22, and at the moment, the vibrating mirror motor 5 and the vibrating mirror 6 are driven to move downwards, so that the movement in the up-down direction is realized.

Examples

As shown in fig. 8 to 12, in this embodiment, the first elastic member is a spring 42, the first plate 22, the second plate 31 and the first elastic member are directly molded by integral injection molding, and then the first elastic member is processed into the shape of the spring by wire cutting or saw cutting, so that the first seat 2, the second seat 3 and the spring 42 form a separate integral part, and compared with the split structure in embodiment 1, the integral part reduces assembly parts, so that the structure is more compact, preferably, the spring 42 can be a plate spring, a coil spring and the like, and the situation of the plate spring is shown in the figure. The galvanometer motor 5 is inserted into the spring 42.

The adjusting parts 7 are arranged outside the springs 42, 3 adjusting parts are preferably arranged, and two adjacent adjusting parts 7 are uniformly arranged outside the springs 42 in a ring mode with an included angle of 120 degrees, and the omnidirectional angle adjustment is realized by tightening and loosening the 3 adjusting parts 7. It is understood that the number of the adjusting members 7 is not limited to 3, and the accuracy of the angle adjustment can be further improved when the number of the adjusting members is increased. The principle of how the adjusting member 7 adjusts the angle is the same as that described above, and the description thereof will not be repeated here.

Examples

As shown in fig. 13 to 19, in the present embodiment, the first elastic member is a spring 41, and the spring 41 is provided with a first avoiding hole 411 through which the vibrating mirror motor 5 passes, preferably, in the present embodiment, the spring 41 is circular in shape.

As shown in fig. 15 and 16, at least two first bosses 34 are disposed on the end face of the second plate body 31 facing the first plate body 22, at least two second bosses 26 are disposed on the end face of the first plate body 22 facing the second plate body 31, and the elastic sheet 41 is connected between the first bosses 34 and the second bosses 26 by screws. Specifically, one end surface of the elastic sheet 41 is connected and fixed with the first boss 34 through two screws, and the other end surface of the elastic sheet 41 is connected and fixed with the second boss 26 through two screws. Preferably, the first boss 34 and the second boss 26 are rotationally symmetrical in the plane where the elastic sheet 41 is located, as shown by the dotted line in fig. 17, when two first bosses 34 are provided and two second bosses are provided, the two first bosses 34 are arranged along the Y axis, and the two second bosses 26 are arranged along the X axis, so that the fixing stress is more uniform and the connection is more firm.

Correspondingly, as shown in fig. 18 and 19, at least four adjusting members 7 are provided, wherein one end of each adjusting member 7 is disposed outside the end face of the second plate 31 away from the first plate 22, the other end penetrates through the second plate 31 and the first boss 34 and the elastic piece 41 and abuts against the first plate 22, one end of each of the other two adjusting members 7 is also disposed outside the end face of the second plate 31 away from the first plate 22, and the other end penetrates through the second plate 31 and abuts against the first plate 22 (i.e. abuts against the elastic piece) through the elastic piece 41 and the second boss 26.

In this embodiment, when adjusting the angle of the galvanometer, the movement of the galvanometer motor 5 in the left-right direction can be achieved by adjusting the adjusting members 7 arranged along the X-axis direction, and the movement of the galvanometer motor 5 in the up-down direction can be achieved by adjusting the adjusting members 7 arranged along the Y-axis direction, thereby achieving the omnidirectional adjustment of the galvanometer. It will be appreciated that the number of the first bosses 34 and the second bosses 26 is not limited to 4, and the number of the adjusting members 7 is not limited to 4, so that the accuracy of the angle adjustment can be further improved after the number of the adjusting members is increased. The principle of how the adjusting member 7 adjusts the angle is the same as that described above, and the description thereof will not be repeated here.

Examples

The embodiment proposes a handheld laser welding gun, which comprises a housing (not shown), the vibrating mirror motor fixing device, the vibrating mirror motor 5, the vibrating mirror 6, a gun nozzle (not shown) and a laser. The first base 2 of the vibrating mirror motor fixing device is fixedly connected with a shell (not shown), light beams emitted by a laser are converted into parallel light beams through a collimating mirror, the parallel light beams are emitted to the vibrating mirror 6 at an included angle smaller than 90 degrees, and the light beams reflected by the vibrating mirror 6 are emitted from a gun nozzle (not shown) after being focused through a focusing mirror. Since the galvanometer 6 is connected with the galvanometer motor 5, the main shaft of the galvanometer motor 5 swings left and right, the light reflected by the galvanometer 6 swings left and right, the focus of the focusing mirror moves left and right on the focal plane, and the welding surface and the welding wire are arranged near the focus of the focusing mirror, and the metal at the focus position is melted and solidified along with the movement of the gun nozzle of the welding gun.

Because the elastic connection of vibrating mirror motor fixing device and vibrating mirror motor, when meetting and falling or falling and putting etc. vibration problem, handheld laser welding rifle in this embodiment has better shock resistance, prolongs handheld laser welding rifle's life. The angle adjustment of the vibrating mirror can be realized rapidly by screwing and unscrewing the adjusting piece, and the operation is simple and convenient.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter.

Claims (10)

1. The utility model provides a mirror motor fixing device shakes, its characterized in that, including the mount pad subassembly that is used for fixed mirror motor (5) shakes, the mount pad subassembly includes first pedestal (2), second pedestal (3) and connects first elastic component between first pedestal (2) and second pedestal (3), mirror motor (5) one end with second pedestal (3) fixed connection, the activity of the other end wear to establish in first pedestal (2), be fixed relatively through one or more regulating part (7) between first pedestal (2) and the second pedestal (3).

2. The vibrating mirror motor fixing device according to claim 1, wherein one end of the adjusting member (7) is in threaded connection with the second base body (3), and the other end is abutted with the first base body (2).

3. The vibrating mirror motor fixing device according to claim 2, wherein the first base body (2) comprises a first plate body (22), the second base body (3) comprises a second plate body (31), one end of the vibrating mirror motor (5) is fixedly connected with the second plate body (31), the other end of the vibrating mirror motor is movably penetrated in the first plate body (22), the first elastic piece is connected between the first plate body (22) and the second plate body (31), one end of the adjusting piece (7) is arranged outside the end face, away from the first plate body (22), of the second plate body (31), and the other end of the adjusting piece penetrates through the second plate body (31) and is in butt joint with the first plate body (22).

4. A galvanometer motor fixing device according to claim 3, characterized in that the first elastic member is a spring plate (41), a first avoiding hole (411) for the galvanometer motor (5) to penetrate is formed in the spring plate (41), and the adjusting member (7) penetrates into the spring plate (41) or is arranged outside the spring plate (41).

5. A galvanometer motor fixture according to claim 3, characterized in that the first elastic member is a spring (42), the galvanometer motor (5) is threaded inside the spring (42), and the adjusting member (7) is arranged outside the spring (42).

6. A galvanometer motor fixing device according to claim 3, characterized in that the first elastic piece is an elastic piece (41), a first avoiding hole (411) for the galvanometer motor (5) to penetrate is formed in the elastic piece (41), at least two first bosses (34) are arranged on the end face of the second plate body (31) facing the first plate body (22), at least two second bosses (26) are arranged on the end face of the first plate body (22) facing the second plate body (31), the first bosses (34) and the second bosses (26) are rotationally symmetrical in the plane where the elastic piece (41) is located, and the elastic piece (41) is connected between the first bosses (34) and the second bosses (26).

7. The vibrating mirror motor fixing device according to claim 6, wherein the adjusting members (7) are at least provided with four, wherein the other ends of two adjusting members (7) penetrate through the second plate body (31) and the first boss (34) and the elastic sheet (41) and are abutted with the first plate body (22), and the other ends of the other two adjusting members (7) penetrate through the second plate body (31) and are abutted with the first plate body (22) through the elastic sheet (41) and the second boss (26).

8. A galvanometer motor fixing device according to claim 3, characterized in that the first base body (2) further comprises a first pipe body (21), the first plate body (22) is connected to the periphery of the first pipe body (21), a first through hole (23) is formed in the first pipe body (21), and the galvanometer motor (5) is movably arranged in the first through hole (23).

9. A galvanometer motor fixture according to claim 8, characterized in that an annular gap (25) is formed between the galvanometer motor (5) and the first tube body (21) for deflection of the galvanometer motor (5), in which annular gap (25) a second elastic element (1) is arranged.

10. A hand held laser welding gun comprising a housing and a galvanometer motor fixture as defined in any one of claims 1-9 connected to the housing.