CN114393303B - Welding jig and laser welding equipment - Google Patents

Abstract

The application belongs to the technical field of laser welding, and relates to a welding fixture and laser welding equipment. The technical scheme provided by the application comprises a base plate, a fixed plate, a positioning mechanism and a first clamping mechanism; the fixed plate is arranged on the base plate, a plurality of placing grooves used for placing first workpieces are formed in the fixed plate, the first clamping mechanism is arranged on the base plate and used for clamping the first workpieces in the placing grooves, and the positioning mechanism is arranged on the fixed plate and used for positioning the second workpieces. The plurality of metal sheets can be positioned and clamped simultaneously, so that the precision of each welding position is ensured, and the welding efficiency is greatly improved; the welding fixture utilizes the acting force of the cam structure and the spring to realize that one power clamps a plurality of metal sheets at the left side and the right side simultaneously, and the positioning accuracy is high; the laser welding equipment can be compatible with different placement modes of the welding fixture, is suitable for welding at different angles, and has good effect on multi-layer and multi-angle welding of complex products.

Description

Welding jig and laser welding equipment

Technical Field

The application relates to the technical field of laser welding, in particular to a welding fixture and laser welding equipment.

Background

Along with the wide application of laser welding, the welded product presents the characteristic of diversification, one product needs to be welded with a plurality of parts, and the customization degree is higher and higher due to multi-part, multi-layer and multi-angle welding, so that the welding of some complex products is more and more in the field of laser welding. When carrying out laser welding to products such as connector, need with the metal flake of a plurality of different shapes with multilayer main part welding, common welding mode is with individual metal flake one by one with the main part welding, welds one part and welds another part again, and such welding mode efficiency is comparatively low.

Disclosure of Invention

The application aims to provide a welding fixture and laser welding equipment, which solve the technical problem of low welding efficiency in the prior art.

In order to solve the above-mentioned problems, the embodiment of the present application provides the following technical solutions:

a welding fixture for clamping a first workpiece and a second workpiece,

the welding fixture comprises a base plate, a fixed plate, a positioning mechanism and a first clamping mechanism;

the fixed plate is arranged on the base plate, a plurality of placing grooves used for placing first workpieces are formed in the fixed plate, the first clamping mechanism is arranged on the base plate and used for clamping the first workpieces in the placing grooves, and the positioning mechanism is arranged on the fixed plate and used for positioning the second workpieces.

Further, the first clamping mechanism comprises a driving assembly and a clamping assembly, the clamping assembly is connected with the driving assembly, and the driving assembly is used for driving the clamping assembly to be close to or far away from the placing groove;

the positioning mechanism comprises a plurality of positioning pins arranged on the fixed plate, and the positioning pins are positioned with pin holes of the second workpiece.

Further, the clamping assembly comprises a fixed block, a movable pressing block and a first elastic piece, the fixed block is fixedly arranged on the base plate, two ends of the first elastic piece are respectively connected with the fixed block and the movable pressing block, the movable pressing block is located between the base plate and the fixed plate, a plurality of bosses are arranged on the movable pressing block, the bosses penetrate through the fixed plate, the movable pressing block is connected with the driving assembly, the movable pressing block moves away from the placing groove under the driving of the driving assembly, and moves along the direction close to the placing groove under the elastic force of the first elastic piece, so that the bosses clamp a first workpiece in the placing groove.

Further, be equipped with the stopper on the base plate, drive assembly includes stirs piece, cam structure, movable block and second elastic component, second elastic component both ends respectively with stopper and movable block are connected, cam structure rotate set up in on the base plate, stir the piece with cam structure connects, stir the piece be used for the drive cam structure rotates, cam structure stir the piece under the drive of piece with during movable block butt, drive the movable block is along being close to the direction removal of movable briquetting, cam structure stir the piece under the drive with when the movable block breaks away from, the movable block is in under the elasticity of second elastic component along keeping away from the direction removal of movable briquetting.

Further, the driving components are in one group, the clamping components are in two groups, and the driving components drive the two groups of clamping components to clamp the first workpiece; the movable block is provided with two first inclined planes, and the movable pressing blocks in the two groups of clamping assemblies are provided with second inclined planes which are abutted with the first inclined planes;

the placing groove is an imitation groove, and a plurality of guide blocks are arranged on the base plate.

Further, the welding jig is still including locating second fixture on the base plate, second fixture includes guide holder, top briquetting, elastic pressing plate, lock piece and bolt, the guide holder is equipped with the mounting groove, elastic pressing plate locates in the mounting groove, the top briquetting is located on the elastic pressing plate, be equipped with slot and lock groove on the base plate, the bolt is located on the guide holder, the guide holder passes through the bolt with the slot cooperation, lock piece rotate set up in on the guide holder and can rotate in the lock inslot.

In order to solve the technical problems set forth above, the embodiment of the application also provides a laser welding device, which adopts the following technical scheme:

a laser welding device comprises a workbench, a vibrating mirror welding mechanism, a feeding mechanism and a welding fixture as described above;

the vibrating mirror welding mechanism and the feeding mechanism are arranged on the workbench, the welding fixture is arranged on the feeding mechanism, the feeding mechanism is used for driving the welding fixture to move to a working area of the vibrating mirror welding mechanism, and the vibrating mirror welding mechanism is used for carrying out laser welding on a first workpiece and a second workpiece on the welding fixture.

Further, the feeding mechanism comprises an inclined support, a feeding motion platform, at least one first positioning component and at least one second positioning component;

the feeding motion platform is arranged on the inclined support, the first positioning component and the second positioning component are arranged on the feeding motion platform, the first positioning component is used for bearing the welding clamp which is horizontally placed, so that the welding clamp faces to a welding light path of the vibrating mirror welding mechanism under the inclination angle of the inclined support, and the second positioning component is used for bearing the welding clamp which is vertically placed, so that the welding position at the top of the welding clamp faces to the welding light path of the vibrating mirror welding mechanism.

Further, the first positioning component comprises a base, a rotating platform, a switching support, an air claw, a mounting plate, a side pressure cylinder, a positioning block and a pressing cylinder;

the base is arranged on the feeding motion platform, the lower end of the rotating platform is provided with a pneumatic slip ring, the pneumatic slip ring is rotationally arranged in the base, the switching support is arranged on the rotating platform, the air claw is arranged on the switching support, the air claw is provided with an electromagnetic valve, the mounting plate is arranged on the air claw, the positioning block, the side pressure cylinder and the lower pressure cylinder are arranged on the mounting plate, the side pressure cylinder is provided with a side pressure plate, and the lower pressure cylinder and the upper pressure cylinder are provided with a lower pressure block;

the second positioning assembly comprises an inclined supporting seat, a platform mounting plate, an X-motion platform, a ball plunger, a positioning seat and a positioning block;

the welding fixture comprises a feeding moving platform, a positioning seat, a ball plunger, a welding fixture top welding position and a welding light path, wherein the feeding moving platform is arranged on the ball plunger, a platform mounting plate is arranged on the feeding moving platform, a platform moving platform is arranged on the tilting supporting seat, a positioning seat is arranged on the X moving platform, the positioning seat is arranged on the positioning seat, the ball plunger is arranged on the positioning seat and the positioning seat, and the tilting directions of the tilting supporting seat and the tilting supporting seat are opposite to each other, so that the welding position of the welding fixture top is perpendicular to the welding light path of the vibrating mirror welding mechanism.

Further, the vibrating mirror welding mechanism comprises a Z motion platform, a vibrating mirror mounting plate, a vibrating mirror welding head, an air knife, a smoke suction pipe and a platform mounting seat;

the Z motion platform is arranged on the platform mounting seat, the vibrating mirror mounting plate is arranged on the Z motion platform, and the vibrating mirror welding head, the air knife and the smoke suction pipe are arranged on the vibrating mirror mounting plate.

Compared with the prior art, the embodiment of the application has the following main beneficial effects:

the welding fixture and the laser welding equipment are characterized in that the fixing plate is provided with a plurality of placing grooves, the first clamping mechanism can clamp a plurality of first workpieces at the same time, after the first workpieces are clamped and fixed, the second workpieces are positioned through the positioning mechanism so as to weld the welding positions of the first workpieces and the second workpieces, a plurality of metal sheets can be positioned and clamped at the same time, the precision of each welding position is ensured, and the welding efficiency is greatly improved; the welding fixture utilizes the acting force of the cam structure and the spring to realize that one power clamps a plurality of metal sheets at the left side and the right side simultaneously, and the positioning accuracy is high; the laser welding equipment can be compatible with different placement forms of the welding fixture, is suitable for welding at different angles, and has good effect on multi-layer and multi-angle welding of complex products; the welding fixture is designed into a horizontal placing state and a vertical placing state, and is suitable for welding the front three layers and the top of a product, is suitable for welding in multiple layers and multiple angles, and is compact in structure and convenient to operate; according to the horizontal positioning device and the vertical positioning device which are designed according to the two forms of the welding fixture, the positioning precision is high, and the welding fixture is suitable for batch production of complex products.

Drawings

In order to more clearly illustrate the solution of the present application, a brief description will be given below of the drawings required for the description of the embodiments, it being apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a connector product according to an embodiment of the present application;

FIG. 2 is a schematic view of a welding fixture according to an embodiment of the present application;

FIG. 3 is a schematic view of a structure of a welding fixture with a hidden fixing plate according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating a connection relationship between a second clamping mechanism and a substrate according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a second clamping mechanism according to an embodiment of the present application;

FIG. 6 is a schematic view of a laser welding apparatus according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a feeding mechanism according to an embodiment of the present application;

FIG. 8 is a schematic structural view of a first positioning assembly according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a second positioning assembly according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a galvanometer welding mechanism according to an embodiment of the application.

Reference numerals illustrate:

100. welding a clamp; 1. a substrate; 2. a fixing plate; 21. a placement groove; 3. a positioning mechanism; 31. a positioning pin; 4. a first clamping mechanism; 41. a drive assembly; 411. a poking block; 412. a cam structure; 413. a moving block; 414. a second elastic member; 42. a clamping assembly; 421. a fixed block; 422. a movable pressing block; 423. a first elastic member; 424. a boss; 5. a limiting block; 6. a guide block; 7. a second clamping mechanism; 71. a guide seat; 72. a top press block; 73. an elastic pressing plate; 74. a buckling block; 75. a plug pin; 8. a feeding mechanism; 81. a tilting support; 82. a feeding motion platform; 83. a first positioning assembly; 831. rotating the platform; 832. a transfer support; 833. a gas claw; 8331. an electromagnetic valve; 834. a mounting plate; 835. a side pressure cylinder; 8351. a side pressure plate; 836. a positioning block; 837. a pressing cylinder; 8371. pressing the block; 84. a second positioning assembly; 841. tilting the supporting seat; 842. a platform mounting plate; 843. an X motion platform; 844. ball plunger; 845. a positioning seat; 846. a positioning plate; 9. a vibrating mirror welding mechanism; 91. a Z motion platform; 92. a vibrating mirror mounting plate; 93. a vibrating mirror welding head; 94. an air knife; 95. a smoke suction pipe; 96. and a platform mounting seat.

Detailed Description

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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the foregoing description of the drawings are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In order to enable those skilled in the art to better understand the present application, a technical solution of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

Examples

As shown in fig. 2 and 3, a welding fixture 100 for clamping a first workpiece and a second workpiece;

the welding fixture 100 comprises a base plate 1, a fixed plate 2, a positioning mechanism 3 and a first clamping mechanism 4;

the fixed plate 2 is arranged on the base plate 1, a plurality of placing grooves 21 for placing first workpieces are formed in the fixed plate 2, the first clamping mechanism 4 is arranged on the base plate 1 and used for clamping the first workpieces in the placing grooves 21, and the positioning mechanism 3 is arranged on the fixed plate 2 and used for positioning the second workpieces.

According to the welding fixture 100 provided by the embodiment of the application, the fixing plate 2 is provided with the plurality of placing grooves 21, the first clamping mechanism 4 can clamp a plurality of first workpieces at the same time, and after the plurality of first workpieces are clamped and fixed, the positioning mechanism 3 is used for positioning the second workpieces so as to weld the welding positions of the first workpieces and the second workpieces; the welding fixture 100 can clamp a plurality of first workpieces simultaneously, so that the accuracy of each welding position on the plurality of first workpieces and the plurality of second workpieces is guaranteed, and the plurality of first workpieces and the plurality of second workpieces are welded simultaneously by one welding fixture 100, so that the welding efficiency is greatly improved.

In one embodiment, the welding fixture 100 mainly relates to the field of laser welding, and is applicable to multi-layer and multi-angle laser welding equipment for products such as connectors, and specifically, the connector comprises a plurality of first workpieces with different shapes and a plurality of second workpieces, wherein the first workpieces are metal sheets, the second workpieces are main bodies, the metal sheets with different shapes and single-layer main bodies are welded, one layer of partition board is arranged in the middle of the welding fixture, then one layer of main body is welded with the metal sheets, three layers of main bodies are required to be welded in total, two layers of partition boards are clamped in the middle of the welding fixture, and finally, the three layers of main bodies are connected and conducted at the top of the welding fixture after the three layers of welding are completed.

Taking the connector product shown in fig. 1 as an example, fig. 1a is 5 metal sheets and a layer of main body, the metal sheets are in a vertical or inclined 45-degree direction, the 5 metal sheets are positioned at one time by the first clamping mechanism 4 of the welding fixture 100, then the layer of main body is inserted, the positioning mechanism 3 is used for positioning the main body, the first layer is welded, the welding positions are two sides of the metal sheets, which are contacted with the main body, each position is spot-welded with 3-4 points, fig. 1b is a partition plate, after the first layer is welded, then the partition plate is inserted, then the second layer of main body is assembled for welding, after the second layer is welded, the partition plate is inserted, then the third layer of main body is assembled, fig. 1c is a semi-finished product welded with three layers, and finally the small inclined surface at the top antenna is welded after the three layers are welded, and the process is a complete flow of welding one connector product.

In one embodiment, the placement groove 21 is an imitation groove, and the substrate 1 is provided with a plurality of guide blocks 6, and the guide blocks 6 facilitate placement of the first workpiece.

The first clamping mechanism 4 comprises a driving component 41 and a clamping component 42, the clamping component 42 is connected with the driving component 41, and the driving component 41 is used for driving the clamping component 42 to be close to or far away from the placing groove 21.

The positioning mechanism 3 comprises a plurality of positioning pins 31 arranged on the fixed plate 2, and the positioning pins 31 are positioned with pin holes of the second workpiece.

The clamping assembly 42 comprises a fixed block 421, a movable pressing block 422 and a first elastic piece 423, the fixed block 421 is fixedly arranged on the base plate 1, two ends of the first elastic piece 423 are respectively connected with the fixed block 421 and the movable pressing block 422, the movable pressing block 422 is located between the base plate 1 and the fixed plate 2, a plurality of bosses 424 are arranged on the movable pressing block 422, the bosses 424 penetrate through the fixed plate 2, the movable pressing block 422 is connected with the driving assembly 41, the movable pressing block 422 moves in a direction away from the placing groove 21 under the driving of the driving assembly 41, and the movable pressing block 422 moves in a direction close to the placing groove 21 under the elastic force of the first elastic piece 423, so that the bosses 424 clamp a first workpiece in the placing groove 21.

In one embodiment, the first elastic member 423 is a spring or a leaf spring, and preferably, the spring is a compression spring.

The base plate 1 is provided with a limiting block 5, the driving assembly 41 comprises a stirring block 411, a cam structure 412, a moving block 413 and a second elastic piece 414, two ends of the second elastic piece 414 are respectively connected with the limiting block 5 and the moving block 413, the cam structure 412 is rotationally arranged on the base plate 1, the stirring block 411 is connected with the cam structure 412, the stirring block 411 is used for driving the cam structure 412 to rotate, the cam structure 412 drives the moving block 413 to move along a direction close to the movable pressing block 422 when the stirring block 411 is driven to abut against the moving block 413, and the moving block 413 moves along a direction far away from the movable pressing block 422 under the elastic force of the second elastic piece 414 when the stirring block 411 is driven to separate from the moving block 413.

In one embodiment, the second elastic member 414 is a spring or a leaf spring, preferably, the spring is a compression spring.

In one embodiment, the driving components 41 are one group, the clamping components 42 are two groups, and the driving components 41 drive the two groups of the clamping components 42 to clamp the first workpiece; two first inclined planes are arranged on the moving block 413, and second inclined planes which are abutted to the first inclined planes are arranged on the movable pressing blocks 422 in the two groups of clamping assemblies 42, wherein the first inclined planes and the second inclined planes are preferably 45 degrees.

The principle of the positioning of a product on the left and right sides of the welding fixture 100 is that the cam structure 412 on the toggle block 411 is utilized to push the moving block 413, and the acting force of the first elastic piece 423 is utilized to realize the clamping and releasing of the first workpiece, in fig. 2, the welding fixture 100 is in a clamping state, the limiting block 5 and the fixed block 421 are fixedly arranged on the base plate 1, the first elastic piece 423 is precompacted in the fixed block 421, the first elastic piece 423 is precompacted in the moving block 413, the movable pressing block 422 presses the first workpiece on the outer side of the profiling groove of the fixed plate 2 under the action of the first elastic piece 423, 7 small bosses 424 on the movable pressing block 422 are tightly attached to the first workpiece, when the first workpiece is inserted, the toggle block 411 needs to be pushed to the right side, one side with the radius of the cam structure 412 overcomes the elasticity of the first elastic piece 423 and the second elastic piece 414 to push the moving block 413 forward, so that the first inclined surfaces 45 degrees on the two sides of the moving block 413 are precompacted against the second inclined surfaces of the first elastic piece 423, and the first inclined surfaces 45 degrees of the moving block 422 are pushed forward against the second inclined surfaces of the first elastic piece 423, and the first inclined surfaces 45 degrees of the moving block 422 are overcome, so that the first workpiece can be opened, and the workpiece can be in a welding state 100; when the poking block 411 is retracted to the left, the side with the short radius of the cam structure 412 rotates to face the movable pressing block 422, the movable pressing block 422 presses the first workpiece under the action of the elastic force of the two first elastic pieces 423, and the moving block 413 is tightly attached to the poking block 411 downwards under the action of the elastic force of the two second elastic pieces 414; the moving block 413 and two sides of the substrate 1 are provided with guiding functions, and the fixed block 421 and the movable block 422 are provided with guiding functions, so that the matching precision is high.

As shown in fig. 4 and 5, the welding fixture 100 further includes a second clamping mechanism 7 disposed on the substrate 1, the second clamping mechanism 7 includes a guide seat 71, a top pressing block 72, an elastic pressing plate 73, a buckling block 74 and a latch 75, the guide seat 71 is provided with a mounting groove, the elastic pressing plate 73 is disposed in the mounting groove, the top pressing block 72 is disposed on the elastic pressing plate 73, a slot and a buckling groove are disposed on the substrate 1, the latch 75 is disposed on the guide seat 71, the guide seat 71 is matched with the slot through the latch 75, and the buckling block 74 is rotatably disposed on the guide seat 71 and can rotate in the buckling groove.

The welding fixture 100 is divided into an upper part and a lower part, the lower part comprises a base plate 1, a fixing plate 2, a positioning mechanism 3 and a first clamping mechanism 4, and is used for welding the front three layers, and the upper part comprises a second clamping mechanism 7 used for pressing the top of the front three layers after being welded. The top briquetting 72 dress has 8 top briquetting 72 in the mounting groove of guide holder 71 in a guide holder 71, top briquetting 72 has the step to block and can not fall down, be equipped with elastic pressing plate 73 above, top briquetting 72 has the elasticity and is equivalent to the effect of spring for every top briquetting 72 fully compresses tightly the product, when installing second fixture 7, inserts bolt 75 on the cotter hole of base plate 1, and positioning accuracy is high, and the refastening lock piece 74 is in the lock groove of base plate 1 again, and welding jig 100 sets up upper and lower two parts of split type, convenient operation.

The welding fixture 100 can clamp the left metal sheet and the right metal sheet simultaneously, after the metal sheets are positioned and clamped, the pin holes of the main bodies of one layer of product are aligned with the positioning pins 31, the flat fixing plate 2 is pressed in, the welding fixture 100 can be placed in a welding position to be positioned and welded at the moment, the main bodies of three layers of products are clamped and welded in sequence, and the top of the semi-finished product is welded. The welding jig 100 is placed horizontally during the welding of the first three layers, and the final top welding requires the jig to be placed vertically.

In order to solve the technical problems set forth above, the embodiment of the application also provides a laser welding device, which adopts the following technical scheme:

as shown in fig. 2, 4 and 6, a laser welding apparatus includes a table, a galvanometer welding mechanism 9, a feeding mechanism 8, and a welding jig 100 as described above;

the vibrating mirror welding mechanism 9 and the feeding mechanism 8 are arranged on the workbench, the welding fixture 100 is arranged on the feeding mechanism 8, the feeding mechanism 8 is used for driving the welding fixture 100 to move to a working area of the vibrating mirror welding mechanism 9, and the vibrating mirror welding mechanism 9 is used for performing laser welding on a first workpiece and a second workpiece on the welding fixture 100. The laser welding equipment can be compatible with different placement forms of the welding fixture 100, is suitable for welding at different angles, and has good effect on multi-layer and multi-angle welding of complex products; the welding fixture 100 is designed into a horizontal placement state and a vertical placement state, and is used for welding the front three layers and the top of a product respectively, so that the welding fixture is suitable for multi-layer and multi-angle welding, and is compact in structure and convenient to operate; according to the horizontal positioning device and the vertical positioning device which are designed according to the two forms of the welding fixture 100, the positioning precision is high, and the welding fixture is suitable for batch production of complex products.

As shown in fig. 6 and 7, the feeding mechanism 8 includes an inclined support 81, a feeding motion platform 82, at least one first positioning assembly 83, and at least one second positioning assembly 84;

the feeding motion platform 82 is arranged on the inclined support 81, the first positioning component 83 and the second positioning component 84 are arranged on the feeding motion platform 82, the first positioning component 83 is used for bearing the welding fixture 100 which is horizontally placed, so that the welding fixture 100 faces to a welding light path of the galvanometer welding mechanism 9 under the inclination angle of the inclined support 81, and the second positioning component 84 is used for bearing the welding fixture 100 which is vertically placed, so that the top welding position of the welding fixture 100 faces to the welding light path of the galvanometer welding mechanism 9.

In one embodiment, the tilt angle of the tilt mount 81 is 30 degrees. The inclined support 81 is arranged to be inclined at 30 degrees for the welding of the first three layers, since the laser is directed vertically downwards and the welding is at the side of the foil, the foil is inclined at an angle to avoid light blocking.

As shown in fig. 7 and 8, the first positioning assembly 83 includes a base, a rotating platform 831, a transfer support 832, a gas claw 833, a mounting plate 834, a side pressure cylinder 835, a positioning plate 846, and a pressing cylinder 837;

the base is arranged on the feeding motion platform 82, a pneumatic slip ring is arranged at the lower end of the rotating platform 831, the pneumatic slip ring is rotationally arranged in the base, the transfer support 832 is arranged on the rotating platform 831, the air claw 833 is arranged on the transfer support 832, an electromagnetic valve 8331 is arranged on the air claw 833, the mounting plate 834 is arranged on the air claw 833, the positioning plate 846, the side pressure cylinder 835 and the lower pressure cylinder 837 are arranged on the mounting plate 834, the side pressure cylinder 835 is provided with a side pressure plate 8351, and the lower pressure cylinder 837 and the upper pressure block 8371 are provided with a lower pressure block 8371.

In fig. 8, the first positioning assembly 83 is in a clamping state, the air jaw 833 is opened before the welding fixture 100 is placed, the side pressure air cylinder 835 and the lower pressure air cylinder 837 are both in a loosening state, the welding fixture 100 is horizontally placed on the mounting plate 834 of the first positioning assembly 83, the air jaw 833 and the side pressure air cylinder 835 clamp to enable the welding fixture 100 to be tightly attached to the positioning plate 846, the lower pressure air cylinder 837 is used for downwards pressing the product main body, the lower pressing block 8371 is provided with an imitation groove, the lower pressing block 8371 can avoid the welding position of the metal sheets, and the problem of how to position and press the welding fixture 100 and avoid the welding position of a plurality of metal sheets is solved; after clamping and fixing, the feeding motion platform 82 sends the welding fixture 100 to a welding position for laser welding, because the metal sheets are irregular, the welding is performed at different angles, through arranging the pneumatic slip ring, the air pipe and the wire can rotate with follow-up, the heights of the first three layers are different, the vibrating mirror welding mechanism 9 moves along with the corresponding heights, the laser focus is arranged on a welding surface, the welding effect of each layer is ensured, and after welding is finished, the feeding motion platform 82 returns to the discharging position.

As shown in fig. 7 and 9, the second positioning assembly 84 includes an inclined support 841, a platform mounting plate 842, an X-motion platform 843, a ball plunger 844, a positioning seat 845, and a positioning plate 846;

the inclined support seat 841 is arranged on the feeding movement platform 82, the platform mounting plate 842 is arranged on the inclined support seat 841, the X movement platform 843 is arranged on the platform mounting plate 842, the positioning seat 845 is arranged on the X movement platform 843, the positioning plate 846 is arranged on the positioning seat 845, the ball plunger 844 is arranged on the positioning seat 845 and the positioning plate 846, and the inclined support seat 841 and the inclined support seat 81 are opposite in inclination direction, so that the top welding position of the welding fixture 100 is perpendicular to a welding light path of the galvanometer welding mechanism 9.

Finally, the welding jig 100 needs to be vertically set when the top of the product is welded, and since the welding position is a plane, the inclined support 841 is reversely inclined to make the welding position horizontal, thereby facilitating the laser welding. When the top of a product is welded, the welding fixture 100 is vertically placed into the positioning seat 845, two ball plungers 844 are respectively arranged on the side faces and tightly propped against the positioning seat, the ball plungers 844 have certain elasticity, and the welding fixture 100 can be accurately positioned during discharging.

As shown in fig. 10, the galvanometer welding mechanism 9 includes a Z-motion platform 91, a galvanometer mounting plate 92, a galvanometer welding head 93, an air knife 94, a smoke suction pipe 95 and a platform mounting seat 96;

the Z motion platform 91 is arranged on the platform mounting seat 96, the vibrating mirror mounting plate 92 is arranged on the Z motion platform 91, and the vibrating mirror welding head 93, the air knife 94 and the smoke suction pipe 95 are arranged on the vibrating mirror mounting plate 92. The heights of the three layers are different, the Z motion platform 91 corresponds to the height along with movement, the number of layers for clamping can be judged in advance, each layer corresponds to the welding height, so that the welding effect of each layer is ensured, and the product yield is high.

It is apparent that the above-described embodiments are only some embodiments of the present application, but not all embodiments, and the preferred embodiments of the present application are shown in the drawings, which do not limit the scope of the patent claims. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the scope of the application.

Claims (8)

1. A laser welding apparatus, characterized in that,

comprises a workbench, a vibrating mirror welding mechanism, a feeding mechanism and a welding fixture;

the vibrating mirror welding mechanism and the feeding mechanism are arranged on the workbench, the welding fixture is arranged on the feeding mechanism, the feeding mechanism is used for driving the welding fixture to move to a working area of the vibrating mirror welding mechanism, and the vibrating mirror welding mechanism is used for carrying out laser welding on a first workpiece and a second workpiece on the welding fixture;

the feeding mechanism comprises an inclined support, a feeding motion platform, at least one first positioning component and at least one second positioning component;

the feeding motion platform is arranged on the inclined support, the first positioning component and the second positioning component are arranged on the feeding motion platform, the first positioning component is used for bearing the welding clamp which is horizontally placed so as to enable the welding clamp to face the welding light path of the galvanometer welding mechanism under the inclination angle of the inclined support, and the second positioning component is used for bearing the welding clamp which is vertically placed so as to enable the welding position at the top of the welding clamp to face the welding light path of the galvanometer welding mechanism;

the first positioning component comprises a base, a rotary platform, a switching support, a gas claw, a mounting plate, a side pressure cylinder, a positioning block and a pressing cylinder;

the base is arranged on the feeding motion platform, the lower end of the rotating platform is provided with a pneumatic slip ring, the pneumatic slip ring is rotationally arranged in the base, the switching support is arranged on the rotating platform, the air claw is arranged on the switching support, the air claw is provided with an electromagnetic valve, the mounting plate is arranged on the air claw, the positioning block, the side pressure cylinder and the lower pressure cylinder are arranged on the mounting plate, the side pressure cylinder is provided with a side pressure plate, and the lower pressure cylinder is provided with a lower pressure block;

the second positioning assembly comprises an inclined supporting seat, a platform mounting plate, an X-motion platform, a ball plunger, a positioning seat and a positioning block;

the welding fixture comprises a feeding moving platform, a positioning seat, a ball plunger, a welding fixture top welding position perpendicular to a welding light path of the vibrating mirror welding mechanism, and is characterized in that the tilting supporting seat is arranged on the feeding moving platform, a platform mounting plate is arranged on the tilting supporting seat, the X moving platform is arranged on the platform mounting plate, the positioning seat is arranged on the X moving platform, the positioning block is arranged on the positioning seat, the ball plunger is arranged on the positioning seat and the positioning block, and the tilting direction of the tilting supporting seat is opposite to that of the tilting supporting seat.

2. A laser welding apparatus according to claim 1, wherein,

the vibrating mirror welding mechanism comprises a Z-motion platform, a vibrating mirror mounting plate, a vibrating mirror welding head, an air knife, a smoke suction pipe and a platform mounting seat;

the Z motion platform is arranged on the platform mounting seat, the vibrating mirror mounting plate is arranged on the Z motion platform, and the vibrating mirror welding head, the air knife and the smoke suction pipe are arranged on the vibrating mirror mounting plate.

3. A laser welding apparatus according to claim 1, wherein,

the welding fixture comprises a base plate, a fixing plate, a positioning mechanism and a first clamping mechanism, wherein the fixing plate is arranged on the base plate, a plurality of placing grooves used for placing first workpieces are formed in the fixing plate, the first clamping mechanism is arranged on the base plate and used for clamping the first workpieces in the placing grooves, and the positioning mechanism is arranged on the fixing plate and used for positioning the second workpieces.

4. A laser welding apparatus according to claim 3, wherein,

the first clamping mechanism comprises a driving assembly and a clamping assembly, the clamping assembly is connected with the driving assembly, and the driving assembly is used for driving the clamping assembly to be close to or far away from the placing groove;

the positioning mechanism comprises a plurality of positioning pins arranged on the fixed plate, and the positioning pins are positioned with pin holes of the second workpiece.

5. The laser welding apparatus according to claim 4, wherein,

the clamping assembly comprises a fixed block, a movable pressing block and a first elastic piece, wherein the fixed block is fixedly arranged on the base plate, two ends of the first elastic piece are respectively connected with the fixed block and the movable pressing block, the movable pressing block is positioned between the base plate and the fixed plate, a plurality of bosses are arranged on the movable pressing block, the bosses penetrate through the fixed plate, the movable pressing block is connected with the driving assembly, the movable pressing block moves away from the placing groove under the driving of the driving assembly, and moves along the direction close to the placing groove under the elastic force of the first elastic piece, so that the bosses clamp a first workpiece in the placing groove.

6. The laser welding apparatus according to claim 5, wherein,

the base plate is provided with a limiting block, the driving assembly comprises a stirring block, a cam structure, a moving block and a second elastic piece, two ends of the second elastic piece are respectively connected with the limiting block and the moving block, the cam structure is rotationally arranged on the base plate, the stirring block is connected with the cam structure, the stirring block is used for driving the cam structure to rotate, the cam structure is driven to move along the direction close to the movable pressing block under the driving of the stirring block when the moving block is abutted, and the moving block is driven to move along the direction far away from the movable pressing block under the elastic force of the second elastic piece when the cam structure is separated from the moving block under the driving of the stirring block.

7. The laser welding apparatus according to claim 6, wherein,

the driving assembly is a group, the clamping assemblies are two groups, and the driving assembly drives the two groups of clamping assemblies to clamp the first workpiece; the movable block is provided with two first inclined planes, and the movable pressing blocks in the two groups of clamping assemblies are provided with second inclined planes which are abutted with the first inclined planes;

the placing groove is an imitation groove, and a plurality of guide blocks are arranged on the base plate.

8. A laser welding apparatus according to claim 3, wherein,

the welding jig is still including locating second fixture on the base plate, second fixture includes guide holder, top briquetting, elastic pressing plate, lock piece and bolt, the guide holder is equipped with the mounting groove, elastic pressing plate locates in the mounting groove, the top briquetting is located on the elastic pressing plate, be equipped with slot and lock groove on the base plate, the bolt is located on the guide holder, the guide holder passes through the bolt with the slot cooperation, lock piece rotate set up in on the guide holder and can rotate in the lock inslot.