CN220718064U - Vibrating mirror motor fixing device and handheld laser welding gun - Google Patents

Abstract

The utility model discloses a galvanometer motor fixing device and a handheld laser welding gun, wherein the galvanometer motor fixing device comprises: the mounting seat assembly is used for fixing the vibrating mirror motor (5), and comprises a first seat body (2), wherein the vibrating mirror motor (5) is movably arranged in the first seat body (2) in a penetrating manner, and an annular gap (25) is formed between the vibrating mirror motor and the first seat body (2); the first elastic piece (1) is arranged in the annular gap (25) and is connected between the vibrating mirror motor (5) and the first base body (2). The utility model discloses a vibrating mirror motor fixing device and a handheld laser welding gun, which can effectively reduce the relative position movement of a vibrating mirror motor caused by vibration.

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. 13 to 15, 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.

However, this kind of rigid connection's fixed mode, when handheld laser welding rifle takes place to fall or fall when putting etc. vibration, can lead to the position of vibrating mirror motor 5 to change, and the vibrating mirror itself is through the cantilever beam structure that vibrating mirror seat and vibrating mirror motor are connected, when vibrating mirror motor 5's position change, can lead to vibrating mirror 6's position to change on the one hand, and then cause laser beam focus point to take place the position offset on the focal plane, influence the welding effect, on the other hand vibrating mirror takes place the impact damage easily, reduce handheld laser welding rifle's life.

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 can effectively reduce the relative position movement of a vibrating mirror motor caused by vibration.

In order to solve the above technical problem, in a first aspect, the present utility model provides a vibrating mirror motor fixing device, including:

the mounting seat assembly is used for fixing the vibrating mirror motor and comprises a first seat body, and the vibrating mirror motor is movably arranged in the first seat body in a penetrating manner and forms an annular gap with the first seat body;

the first elastic piece is arranged in the annular gap and connected between the vibrating mirror motor and the first seat body.

Preferably, the first elastic member is annular and sleeved outside the galvanometer motor.

Preferably, the first elastic member is made of soft material, and the galvanometer motor fixing device comprises one or more first elastic members, and the plurality of first elastic members are arranged at intervals along the axis direction of the galvanometer motor.

Preferably, a unilateral gap between the vibrating mirror motor and the first seat body is 0.3-1.5mm, and the wire diameter of the first elastic piece is 2-6 times of the unilateral gap.

Preferably, the inner diameter of the first elastic piece is smaller than or equal to the outer diameter of the galvanometer motor, and the interference fit between the first elastic piece and the galvanometer motor is not more than 25% of the wire diameter of the first elastic piece.

Preferably, the first elastic piece is made of hard materials and comprises a ring body and a plurality of elastic arms which are folded inwards in the radial direction from the ring body, the ring body is connected with the first base body, and the elastic arms are elastically abutted with the galvanometer motor.

Preferably, the vibrating mirror motor fixing device comprises a plurality of first elastic pieces, two adjacent first elastic pieces are arranged at intervals, and the plurality of first elastic pieces are arranged outside the vibrating mirror motor in a surrounding mode and at least partially oppositely arranged.

Preferably, the first base body comprises a first pipe body and a first plate body 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, the first tube body is provided with one or more grooves, and the first elastic piece is fixedly installed in the grooves.

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 first elastic piece is arranged in the annular gap formed between the vibrating mirror motor and the first base body, so that the vibrating mirror motor is relatively fixed in the first base body through the first elastic piece, after the vibrating mirror motor and the mounting base assembly are assembled, even if falling or falling and other vibration occurs, vibration energy can be absorbed through the first elastic piece to play a role in buffering, the position of the vibrating mirror motor in the first base body cannot be changed, relative position movement of the vibrating mirror motor caused by vibration is effectively reduced, and meanwhile the possibility that the vibrating mirror is offset and/or impact damage is caused due to vibration is effectively reduced.

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 diagram of a vibrating mirror motor fixture according to the present utility model;

FIG. 2 is an exploded view of a galvanometer motor fixture in accordance with one 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 view of the structure of the first base of the present utility model;

FIG. 6 is a schematic view of the structure of the second base of the present utility model;

FIG. 7 is an exploded view of a galvanometer motor fixture in accordance with another embodiment 1 of the utility model;

FIG. 8 is a cross-sectional view of the structure of FIG. 7;

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

FIG. 10 is a schematic view showing the structure of a first elastic member in embodiment 2 of the present utility model;

FIG. 11 is a sectional view of a galvanometer motor fixture in accordance with embodiment 2 of the utility model;

FIG. 12 is a sectional view of a galvanometer motor fixture in accordance with embodiment 3 of the utility model;

FIG. 13 is a schematic view of a prior art galvanometer motor fixture;

FIG. 14 is a cross-sectional view of a prior art galvanometer motor fixture;

fig. 15 is an enlarged schematic view of the portion b in fig. 14.

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, a galvanometer motor fixing apparatus according to a preferred embodiment of the present utility model includes a mount assembly and a first elastic member 1.

As shown in fig. 2, 3, 7, 8, 9, the mount assembly includes a first housing 2, a second housing 3, and a second elastic member 4 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 first 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 first 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.

Specifically, as shown in fig. 5, the first seat body 2 includes a first pipe body 21 and a first plate body 22 connected to the outer periphery of the first pipe body 21, a first through hole 23 is provided in the first pipe body 21, the vibrating mirror motor 5 movably penetrates through the first through hole 23, and the first pipe body 21 plays a guiding role for adjusting the angle of the vibrating mirror motor 5. The vibrating mirror motor 5 is connected with the first pipe body 21 through the first elastic element 1, preferably, one or more grooves 24 are formed in the first pipe body 21, the first elastic element 1 is fixedly arranged in the grooves 24 to play a role in positioning, the first 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, 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 disposed, 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 second elastic piece 4 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 angle direction and the angle between the second plate body 31 and the first plate body 22 can be adjusted by changing the butt joint acting force between the adjusting pieces 7 and the first plate body 22 and being matched with the assistance of the elastic force of the second elastic piece 4, 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.

Example 1

As shown in fig. 2 and 7, in the present embodiment, the first elastic member 1 is annular and is sleeved outside the galvanometer motor 5.

Further, the first elastic member 1 in this embodiment is made of soft materials such as rubber, silica gel, TPU, etc., and the vibrating mirror motor fixing device may include a ring-shaped first elastic member 1, or may include a plurality of ring-shaped first elastic members 1, where the plurality of ring-shaped first elastic members 1 are disposed at intervals along the axial direction of the vibrating mirror motor 5. For each annular first elastic member 1, when the single-sided gap between the galvanometer motor 5 and the first base body 2 is 0.3-1.5mm, the wire diameter of the first elastic member 1 is 2-6 times of the single-sided gap, and interference fit between the first elastic member 1 and the galvanometer motor 5 and between the first base body 2 can be ensured. Preferably, the inner diameter of the first elastic member 1 is smaller than or equal to the outer diameter of the galvanometer motor 5, the interference fit between the first elastic member 1 and the galvanometer motor 5 is not more than 25% of the linear diameter of the first elastic member 1, so that the galvanometer motor 5 is in the range of allowing deflection in the first pipe body 21, the first elastic member 1 keeps elastic abutting connection in the mode between the first seat body 2 and the galvanometer motor 5, and the external vibration energy is absorbed and buffered.

Example 2

As shown in fig. 9, in the present embodiment, the first elastic member 1 is annular and is sleeved outside the galvanometer motor 5.

Further, the first elastic member 1 in this embodiment is made of hard materials such as spring steel, stainless steel, copper alloy, and the like. In this embodiment, as shown in fig. 10 and 11, the first elastic member 1 includes a ring body 11 and a plurality of elastic arms 12 which are drawn inward in the radial direction from the ring body 11, and preferably, 3 elastic arms are provided and uniformly arranged in the ring body 11. The ring body 11 is connected with the first seat body 2, and the elastic arm 12 is elastically abutted with the galvanometer motor 5. The vibrating mirror motor 5 always keeps elastic contact with the vibrating mirror motor 5 within the range of the allowable deflection in the first pipe body 21, and the vibrating mirror motor has the effects of absorbing and buffering external vibration energy.

In this embodiment, one first elastic member 1 may be provided, and a plurality of first elastic members 1 may be provided, and the first elastic members 1 may be provided at intervals along the axial direction of the galvanometer motor 5.

Example 3

As shown in fig. 12, in this embodiment, the vibrating mirror motor fixing device includes a plurality of first elastic members 1, two adjacent first elastic members 1 are disposed at intervals, that is, the first elastic members 1 are a plurality of independent parts, and the plurality of first elastic members 1 are disposed outside the vibrating mirror motor 5 in a surrounding manner and at least partially disposed oppositely, preferably, the plurality of first elastic members 1 are disposed in a rotationally symmetrical manner, so that the stress of the vibrating mirror motor 5 is uniform.

The plurality of first elastic pieces 1 can be distributed at any position of the outer peripheral surface of the vibrating mirror motor 5, and each first elastic piece 1 is arranged, one more contact point is formed in the vibrating mirror motor 5 in the first pipe body 21, so that the anti-falling capacity of the vibrating mirror motor is improved.

Example 4

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. A galvanometer motor fixture, comprising:

the mounting seat assembly is used for fixing the vibrating mirror motor (5), and comprises a first seat body (2), wherein the vibrating mirror motor (5) is movably arranged in the first seat body (2) in a penetrating manner, and an annular gap (25) is formed between the vibrating mirror motor and the first seat body (2);

the first elastic piece (1) is arranged in the annular gap (25) and is connected between the vibrating mirror motor (5) and the first base body (2).

2. The vibrating mirror motor fixing device according to claim 1, wherein the first elastic member (1) is annular and sleeved outside the vibrating mirror motor (5).

3. The vibrating mirror motor fixing device according to claim 2, wherein the first elastic members (1) are made of soft materials, the vibrating mirror motor fixing device comprises one or more first elastic members (1), and the plurality of first elastic members (1) are arranged at intervals along the axial direction of the vibrating mirror motor (5).

4. A galvanometer motor fixture according to claim 3, characterized in that the single-sided gap between the galvanometer motor (5) and the first housing (2) is 0.3-1.5mm, and the wire diameter of the first elastic member (1) is 2-6 times the single-sided gap.

5. The vibrating mirror motor fixing device according to claim 4, wherein the inner diameter of the first elastic member (1) is smaller than or equal to the outer diameter of the vibrating mirror motor (5), and the interference fit between the first elastic member (1) and the vibrating mirror motor (5) is not more than 25% of the linear diameter of the first elastic member (1).

6. The vibrating mirror motor fixing device according to claim 2, wherein the first elastic member (1) is made of a hard material and comprises a ring body (11) and a plurality of elastic arms (12) which are folded inwards from the ring body (11) along the radial direction, the ring body (11) is connected with the first base body (2), and the elastic arms (12) are elastically abutted with the vibrating mirror motor (5).

7. The vibrating mirror motor fixing device according to claim 6, wherein the vibrating mirror motor fixing device comprises a plurality of first elastic pieces (1), two adjacent first elastic pieces (1) are arranged at intervals, and the plurality of first elastic pieces (1) are annularly arranged outside the vibrating mirror motor (5) and are at least partially arranged oppositely.

8. The vibrating mirror motor fixing device according to any one of claims 1 to 7, wherein the first base body (2) comprises a first tube body (21) and a first plate body (22) connected to the periphery of the first tube body (21), a first through hole (23) is formed in the first tube body (21), and the vibrating mirror motor (5) is movably arranged in the first through hole (23) in a penetrating mode.

9. The vibrating mirror motor fixing device according to claim 8, wherein one or more grooves (24) are formed in the first tube body (21), and the first elastic member (1) is fixedly installed in the groove (24).

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.