CN114147361A

CN114147361A - Laser welding device

Info

Publication number: CN114147361A
Application number: CN202210116981.0A
Authority: CN
Inventors: 马加飞
Original assignee: Jiangsu Mico Laser Equipment Co ltd
Current assignee: Jiangsu Mico Laser Equipment Co ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-03-08

Abstract

The invention is suitable for the field of laser welding, and provides a laser welding device which comprises a box body, a clamping piece, a self-adjusting driving unit and a transmission piece, wherein one side of the box body is of an opening structure; the self-adjusting driving unit comprises an elastic telescopic piece fixed at the bottom in the box body, a mounting plate is fixed at the other end of the elastic telescopic piece, a driving piece is arranged on one side of the mounting plate, a driving wheel is fixed at the output end of the driving piece, the driving piece comprises a transverse plate fixed on the inner wall of the box body, a rotating shaft is rotatably connected to the transverse plate, one end of the rotating shaft is connected with the working table, and a driving wheel is fixed at the other end of the rotating shaft. The beneficial effects are as follows: the device can flexibly control the workpiece to rotate, and can automatically lock the rotation of the workpiece after the rotation is stopped, so that the adjustment is very quick during the welding operation, the clamp does not need to be frequently adjusted, and a large amount of time is saved.

Description

Laser welding device

Technical Field

The invention belongs to the field of laser welding, and particularly relates to a laser welding device.

Background

Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source. Laser welding is efficient and simple, and is widely applied to precision welding of micro and small parts.

The handheld laser welding machine is widely used and flexible to operate, welding can be carried out at any angle during welding, the top of a main machine of the handheld laser welding machine is generally set as a working surface, a workpiece is placed on the working surface, then welding is carried out through a handheld welding gun, parts with regular shapes such as plate-shaped parts can be welded only by being supported by a single hand of an operator, and extra auxiliary fixing tools are not needed.

However, when the existing handheld laser welding is used for a part of a revolving body, because other parts may need to be welded and fixed at different positions, the position of a workpiece needs to be frequently adjusted, accordingly, a clamp needs to be frequently operated, the position deviation of the workpiece may be caused, and the welding effect is affected.

Disclosure of Invention

The embodiment of the invention aims to provide a laser welding device, aiming at solving the problem that the rotation of a workpiece is not completely limited due to a rotating clamp, so that the welding operation is influenced.

The embodiment of the invention is realized in such a way that the laser welding device comprises a box body, a self-adjusting driving unit and a transmission part, wherein one side of the box body is of an opening structure, a mounting hole position is formed in the box body, a rotary working table is arranged in the mounting hole position, a clamping piece is arranged on the working table, and the self-adjusting driving unit and the transmission part are arranged;

the self-adjusting driving unit comprises an elastic telescopic piece fixed at the bottom in the box body, a mounting plate is fixed at the other end of the elastic telescopic piece, a driving piece is arranged on one side of the mounting plate, a driving wheel is fixed at the output end of the driving piece, a clamping piece is fixed at the other side of the mounting plate through a rod piece, pulling units are arranged at the mounting plate and the bottom of the box body, a switch piece is arranged on the outer side surface of the box body and used for controlling the driving piece and the pulling units to work synchronously;

the transmission part comprises a rotating shaft which is rotatably arranged in the box body, one end of the rotating shaft is connected with the working table surface, and the other end of the rotating shaft is fixedly provided with a transmission wheel;

the driving wheel and the clamping piece are located on two sides of the driving wheel, when the elastic telescopic piece is located in an initial state, the clamping piece is in contact with the driving wheel, the driving wheel is limited in rotation through friction force, when the switch piece controls the driving piece and the traction unit to work, the elastic telescopic piece is compressed to enable the driving wheel to be displaced and matched with the driving wheel, and when the driving wheel rotates, the driving wheel is driven to rotate through friction force.

Preferably, the clamping member is placed on a workbench, and a plurality of positioning grooves are formed in the workbench and used for fixing the clamping member.

Preferably, the worktop is flush with the surface of the case.

Preferably, the clamping piece comprises a bottom plate, a clamping block matched with the positioning groove is arranged on one side of the bottom plate, and a plurality of elastic swinging pieces are fixed on the other side of the bottom plate and used for fixing the workpiece.

Preferably, the driving wheel and the driving wheel adopt a side contact mode, and the sides of the driving wheel and the driving wheel are inclined planes.

Preferably, a slot is formed in the other side, opposite to the rotating shaft, of the driving wheel, and the slot is matched with the clamping piece to limit the rotation of the driving wheel.

Preferably, the retainer is of a tapered configuration.

Preferably, the clamping piece is made of rubber.

Preferably, the pulling unit is a current-carrying magnet fixed to the mounting plate and the bottom of the box body respectively.

Preferably, a sealing plate is fixed on the opening side of the box body.

The embodiment of the invention provides a laser welding device, which has the beneficial effects that: when the device is used, firstly, the workpiece of the revolving body is fixed through the clamping piece, the traction unit and the driving piece are controlled to synchronously work through the switch piece, at the moment, the elastic expansion piece is compressed under the action of the traction unit, the driving wheel can be driven to contact with the driving wheel, the working table is driven to rotate, the workpiece can rotate, after the power failure is controlled through the switch piece, the elastic expansion piece resets, the clamping piece is in contact with the driving wheel at the moment, the rotation of the driving wheel can be limited, the workpiece in the clamping piece on the working table can not rotate, the welding work can be conveniently carried out, the device can flexibly control the workpiece to rotate, the rotation of the workpiece can be automatically locked after the rotation is stopped, the adjustment during the welding work is very quick, the clamp is not required to be frequently adjusted, and a large amount of time is saved.

Drawings

Fig. 1 is a perspective view of a laser welding apparatus according to an embodiment of the present invention;

fig. 2 is a front view of a laser welding apparatus according to an embodiment of the present invention with a closing plate removed;

FIG. 3 is a perspective view of a transmission member and a work table according to an embodiment of the present invention;

FIG. 4 is a perspective view of the other view of FIG. 3;

FIG. 5 is a perspective view of a self-adjusting drive unit according to an embodiment of the present invention;

FIG. 6 is a perspective view of a clamping member according to an embodiment of the present invention;

FIG. 7 is a perspective view of the alternative view of FIG. 6;

FIG. 8 is a perspective view of the mounting shaft and the shaped roller according to the embodiment of the present invention;

in the drawings: 1-a box body; 2-a working table surface; 3-a clamping member; 301-a base plate; 302-a fixture block; 303-elastic oscillating piece; 3031-a support fork; 3032-roller; 3033-a spring; 3034-mounting the shaft; 3035-special-shaped rollers; 4-a self-adjusting drive unit; 401-elastic expansion elements; 402-a mounting plate; 403-a drive member; 404-a drive wheel; 405-a clip; 406-a pulling unit; 4061-energized magnet; 407-a switch member; 5-a transmission member; 501-a transverse plate; 502-a shaft; 503-a transmission wheel; 6-positioning a groove; 7-groove position; 8-closing plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1, 2 and 5, a structure of a laser welding apparatus according to an embodiment of the present invention includes:

one side is the box 1 of open structure, and it has the installation hole site to open on the box 1, is provided with rotatory table surface 2 in the installation hole site, is provided with clamping piece 3 on the table surface 2, still including self-interacting drive unit 4 and driving medium 5.

The self-adjusting driving unit 4 comprises an elastic telescopic piece 401 fixed at the bottom in the box body 1, the other end of the elastic telescopic piece 401 is fixed with a mounting plate 402, a driving piece 403 is arranged on one side of the mounting plate 402, a driving wheel 404 is fixed at the output end of the driving piece 403, a clamping piece 405 is fixed at the other side of the mounting plate 402 through a rod piece, the mounting plate 402 and the bottom of the box body 1 are both provided with a pulling unit 406, a switch piece 407 is arranged on the outer side surface of the box body 1, and the switch piece 407 is used for controlling the driving piece 403 and the pulling unit 406 to work synchronously.

The transmission piece 5 comprises a transverse plate 501 fixed on the inner wall of the box body 1, a rotating shaft 502 is rotatably connected to the transverse plate 501, one end of the rotating shaft 502 is connected with the working table 2, and a transmission wheel 503 is fixed at the other end of the rotating shaft 502.

The driving wheel 404 and the clamping piece 405 are located on two sides of the driving wheel 503, when the elastic expansion piece 401 is located in an initial state, the clamping piece 405 is in contact with the driving wheel 503, the rotation of the driving wheel 503 is limited through the action of friction force, when the switch piece 407 controls the driving piece 403 and the pulling unit 406 to work, the elastic expansion piece 401 is compressed to enable the driving wheel 404 to be displaced to be matched with the driving wheel 503, and when the driving wheel 404 rotates, the driving wheel 503 is driven to rotate through the friction force.

In one embodiment of the invention, when the device is used, firstly, a workpiece of a revolving body is fixed through a clamping piece 3, a pulling unit 406 and a driving piece 403 are controlled to work synchronously through a switch piece 407, at the moment, an elastic expansion piece 401 is compressed under the action of the pulling unit 406 and can drive a driving wheel 404 to be in contact with a driving wheel 503 so as to drive a worktable surface 2 to rotate, so that the workpiece can rotate, after the power failure is controlled through the switch piece 407, the elastic expansion piece 401 resets, at the moment, a clamping piece 405 is in contact with the driving wheel 503 so as to limit the rotation of the driving wheel 503, so that the workpiece in the clamping piece 3 on the worktable surface 2 can not rotate, the welding work is convenient to carry out, the device can flexibly control the rotation of the workpiece, the rotation of the workpiece can be automatically locked after the rotation is stopped, the adjustment during the welding work is very quick, and the clamp does not need to be frequently adjusted, a great deal of time is saved.

In an example of the present invention, the clamping member 3 may be a claw fixed on the working table 2 for fixing a workpiece of a revolving body, the elastic expansion member 401 may be a spring expansion link, the pulling unit 406 may be a motor fixed at the bottom of the box 1, an output end of the motor is connected with a pulling rope in a winding manner, another end of the pulling rope is fixed on the mounting plate 402, the mounting plate 402 moves down when the power is on, the spring expansion link can move the mounting plate 402 up after the pulling unit 406 stops working due to the power-off operation through the cooperation of the pulling unit 406 and the spring expansion link, the driving member 403 may be a motor, or may be a hydraulic motor, and only needs to drive the driving wheel 404 to rotate, the clamping member 405 may already be a disc, the disc is of a fixed structure, and is contacted with the side surface of the driving wheel 503 through the disc, the rotation of the driving wheel 503 can be limited by the friction force, so that the rotation of the work table 2 is limited.

As shown in fig. 3, as a preferred embodiment of the present invention, the clamping member 3 is placed on the work table 2, and a plurality of positioning grooves 6 are provided on the work table 2, and the positioning grooves 6 are used for fixing the clamping member 3.

As shown in fig. 1, the work surface 2 is flush with the surface of the case 1.

As shown in fig. 6 and 7, the clamping member 3 includes a bottom plate 301, a latch 302 is disposed on one side of the bottom plate 301 and is engaged with the positioning slot 6, and a plurality of elastic swinging members 303 are fixed on the other side of the bottom plate 301, and the elastic swinging members 303 are used for fixing the workpiece.

In one aspect of this embodiment, the clamping member 3 is placed on the work bench 2 by the cooperation of the clamping block 302 and the positioning groove 6, which does not affect the rotation of the work bench 2 to drive the clamping member 3 to rotate, and when the welding device does not need to fix the workpiece by the clamping member 3 for welding, the clamping member 3 can be removed as a whole, and the work bench 2 is flush with the surface of the box 1 to facilitate the placement of the workpiece above, the elastic swinging member 303 includes supporting forks 3031 rotatably connected to the bottom plate 301, the supporting forks 3031 are uniformly distributed around the circumference of the bottom plate 301, the supporting forks 3032 are rotatably connected to the supporting forks 3031, the rollers 3032 are made of elastic material, and a spring 3033 is arranged between the supporting forks 3031 and the bottom plate 301, when the workpiece of the revolving body is located in the middle of the bottom plate 301, the spring 3033 can drive the rollers 3032 to contact with the side surfaces of the workpiece, and is made of elastic material, as shown in fig. 8, in order to enable the support fork 3031 to clamp the workpiece via the roller 3032 better, an arc-shaped mounting shaft 3034 may be fixed to the support fork 3031, and a plurality of rotating special-shaped rollers 3035 are uniformly distributed on the mounting shaft 3034, because of the arc-shaped structural characteristics of the mounting shaft 3034, a greater number of special-shaped rollers 3035 can be in contact with the surface of the workpiece, and a better clamping acting force is provided compared with the roller 3032.

As shown in fig. 2, as a preferred embodiment of the present invention, the driving wheel 503 and the driving wheel 404 are in side contact, and the sides of the driving wheel 503 and the driving wheel 404 are both inclined.

In one aspect of this embodiment, the present device is engaged with the driving wheel 503 by the axial moving position of the driving wheel 404, but the driving wheel 404 and the driving wheel 503 in the conventional shape can not ensure sufficient contact when moving to engage, so as to provide sufficient friction force, and therefore, the arrangement of the bevel structure can ensure that the driving wheel 404 can contact with the driving wheel 503 more sufficiently when moving to the side of the driving wheel 503, so as to achieve the effect of transmission by friction.

As shown in FIGS. 4 and 5, as a preferred embodiment of the present invention, a slot 7 is formed on the other side of the driving wheel 503 opposite to the rotating shaft 502, the slot 7 cooperates with the clamping member 405 to limit the rotation of the driving wheel 503, the clamping member 405 is in a conical structure, and the clamping member 405 is made of rubber.

In one aspect of this embodiment, the clamping member 405 is a tapered structure made of rubber, and extends into the slot 7 under the action of the telescopic rod of the spring, so as to provide a more sufficient acting force, and make the fixing state of the driving wheel 503 more stable.

As shown in fig. 2, in a preferred embodiment of the present invention, the pulling unit 406 is a current-carrying magnet 4061 fixed to the mounting plate 402 and the bottom of the case 1, respectively.

In one aspect of this embodiment, the energizing magnet 4061 is configured to move the mounting plate 402 faster and faster than the pulling unit 406, and the circuit connection is simpler to implement, as long as the energizing magnet 4061 is able to operate when the driving member 403 is energized.

As shown in fig. 1, as a preferred embodiment of the present invention, a closing plate 8 is fixed to an opening side of the case 1.

In a case of this embodiment, shrouding 8 can adopt glass's material, not only can play and seal isolated effect, can conveniently observe the behavior of internals moreover.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A laser welding device comprises a box body with an opening structure on one side, wherein a mounting hole position is formed in the box body, and a rotary working table is arranged in the mounting hole position;

2. The laser welding apparatus as recited in claim 1, wherein the clamping member is disposed on a work surface having a plurality of positioning slots for retaining the clamping member.

3. The laser welding apparatus of claim 2, wherein the work table is flush with a surface of the tank.

4. The laser welding apparatus as claimed in claim 2, wherein the clamping member comprises a base plate, one side of the base plate is provided with a fixture block which is matched with the positioning groove, and the other side of the base plate is fixed with a plurality of elastic swinging members which are used for fixing the workpiece.

5. The laser welding apparatus according to claim 1, wherein the driving wheel and the driving wheel are in side contact, and the sides of the driving wheel and the driving wheel are both inclined.

6. The laser welding apparatus of claim 1, wherein the drive wheel has a slot on the other side of the drive wheel opposite the pivot, the slot cooperating with the retaining member to limit rotation of the drive wheel.

7. The laser welding apparatus of claim 6 wherein the retainer is of a tapered configuration.

8. The laser welding apparatus of claim 7, wherein the retainer is made of rubber.

9. The laser welding apparatus according to claim 1, wherein the drawing unit is an energized magnet fixed to the mounting plate and the bottom of the tank, respectively.

10. The laser welding apparatus as claimed in claim 1, wherein a closing plate is fixed to an opening side of the case.