Precise laser welding module

Abstract

The utility model discloses a precise laser welding module which comprises a workbench, a driving module installed on the workbench, a laser welding head and a material taking mechanism, the laser welding head and the material taking mechanism are driven by the driving module to do three-dimensional motion synchronously, and the material taking mechanism is arranged below the laser welding head. The material taking mechanism comprises a material taking mounting plate, a vacuum adsorption block, a pressing claw and a driving device, the vacuum adsorption block is slidably connected to the material taking mounting plate, the bottom of the vacuum adsorption block is provided with a vacuum adsorption hole used for adsorbing a to-be-welded material sheet, and the vacuum adsorption block is further provided with a receding hole right opposite to a welding area on the material sheet; the pressing claw is mounted on the material taking mounting plate and extends into the clearance hole, and the pressing claw is used for pressing the material sheet; and the driving device is fixed on the material taking mounting plate and is used for driving the vacuum adsorption block to lift to leave the material sheet. According to the utility model, a material sheet can be accurately welded at a specified position of a product, meanwhile, the damage to the material sheet caused by the fact that the vacuum adsorption block absorbs the heat of a laser beam is effectively avoided, and the welding quality is obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser processing equipment technical field especially relates to a precision laser welding module. BACKGROUND

[0002] In modern manufacturing industry, accurately and firmly welding the sheet on the product is a common and key process. In the prior art, the vacuum suction block is often used to adsorb the sheet and transfer it to the specified position on the product for laser welding, and the sheet is pressed by the vacuum suction block during the welding process to prevent it from deviating.

[0003] However, during the welding process, the high-energy laser beam generated by the laser welding head will absorb heat from the vacuum suction block, and the vacuum suction block is easy to generate excessive temperature. Since the vacuum suction block is always in contact with the sheet, it not only causes thermal damage to the sheet, but also may even cause damage to the sheet, which seriously affects the welding quality and the qualification rate of the product. Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. SUMMARY

[0004] The problem to be solved by the utility model is to provide a precision laser welding module to overcome the defect that the vacuum suction block of the existing laser welding device absorbs heat from the laser beam to cause damage to the sheet.

[0005] The utility model adopts the technical scheme that in order to solve its technical problem: a precision laser welding module, include: workbench, install drive module on the workbench and by drive module drive synchronous three-dimensional movement laser welding head and material taking mechanism, material taking mechanism set below laser welding head, material taking mechanism include material taking mounting plate, vacuum suction block, press jaw and drive arrangement, vacuum suction block sliding joint in material taking mounting plate, the bottom of vacuum suction block is equipped with the vacuum suction hole for adsorbing the sheet to be welded, simultaneously, the vacuum suction block is equipped with the empty hole that is opposite to the welding area on the sheet, press jaw installs on material taking mounting plate and extends into empty hole, press jaw is used for pressing sheet, drive arrangement is fixed on material taking mounting plate, it is used for driving vacuum suction block to lift to leave sheet.

[0006] As a further improvement of the utility model, the material taking mechanism further includes a suction block mounting plate located below the material taking mounting plate, the suction block mounting plate and the material taking mounting plate are connected through a plurality of guide columns, and a first spring is sleeved on each guide column, the first spring is used to always exert an elastic force downward on the suction block mounting plate, and the vacuum suction block is fixed on the bottom of the suction block mounting plate.

[0007] As a further improvement of the utility model, the driving device comprises a cylinder and a push plate installed on the cylinder, a stop block is fixed on the adsorption block mounting plate, the cylinder can drive the push plate and drive the adsorption block mounting plate and the vacuum adsorption block to lift through the stop block.

[0008] As a further improvement of the utility model, a boss is arranged on the top of the stop block in the horizontal direction, and the end of the push plate extends below the boss.

[0009] As a further improvement of the utility model, a vertical plate is arranged on the bottom of the material taking mounting plate, a slide rail is fixed on the vertical plate, the pressing claw is slidably arranged on the slide rail through a sliding block, and a second spring is arranged between the pressing claw and the material taking mounting plate.

[0010] As a further improvement of the utility model, a stop table is arranged on the bottom of the vertical plate, and the sliding block is stopped on the stop table under the elastic force of the second spring.

[0011] As a further improvement of the utility model, two symmetrically distributed pressing claws are arranged, which are made of transparent glass, and the bottom of each of the two pressing claws is provided with a pressing tooth, and the two pressing teeth are arranged in an inverted "8" shape.

[0012] As a further improvement of the utility model, a laser sensor for detecting the height of the laser welding head is arranged on one side of the material taking mounting plate.

[0013] As a further improvement of the utility model, the precise laser welding module further comprises a smoke extractor arranged on one side of the laser welding head.

[0014] As a further improvement of the utility model, the driving module comprises an X-axis linear module, a Y-axis linear module and a Z-axis linear module, the Y-axis linear module is installed on the workbench, the X-axis linear module is arranged on the Y-axis linear module, the Z-axis linear module is installed on the X-axis linear module, and the laser welding head and the material taking mechanism are both installed on the Z-axis linear module.

[0015] The utility model provides a precise laser welding module, through the vacuum adsorption block adsorbing the material piece to be welded, the material piece is transferred to the specified welding position on the product, the vacuum adsorption block is lifted and separated from the material piece by the driving device, the material piece is pressed by the pressing claw during welding, the deviation of the material piece during the welding process is prevented, the material piece can be accurately welded at the specified position of the product, the heat absorption of the pressing claw to the laser beam is small, the temperature is not too high, the contact area of the pressing claw and the material piece is small, the damage of the material piece caused by the heat absorption of the vacuum adsorption block to the laser beam is effectively avoided, and the quality and the qualification rate of the welded product are obviously improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the precision laser welding module of the present application;

[0017] Figure 2 is a perspective view of the precision laser welding module of the present application after removal of the workbench, X-axis linear module and Y-axis linear module;

[0018] Figure 3 is a perspective view of the material taking mechanism of the present application;

[0019] Figure 4 is a sectional view of the material taking mechanism of the present application;

[0020] Figure 5 is a perspective view of the material taking mechanism of the present application after removal of the material taking installation plate, guide column and driving device;

[0021] Figure 6 is a perspective view of the vacuum suction block and the pressing jaw of the present application;

[0022] Figure 7 is a perspective view of the vacuum suction block and the pressing jaw of the present application from another angle.

[0023] The following description is made in conjunction with the accompanying drawings:

[0024] 1. workbench; 2. laser welding head; 3. material taking installation plate; 4. vacuum suction block; 401. vacuum suction hole; 402. air avoiding hole; 5. pressing jaw; 501. pressing tooth; 6. air cylinder; 7. suction block installation plate; 8. guide column; 9. push plate; 10. stop block; 1001. boss; 11. vertical plate; 1101. stop table; 12. slide rail; 13. slide block; 14. second spring; 15. laser sensor; 16. smoke extractor; 17. X-axis linear module; 18. Y-axis linear module; 19. Z-axis linear module; 20. linear bearing; 21. Z-axis installation plate; 22. welding head installation plate; 23. camera. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] Reference Figures 1 to 7 The present application provides a precision laser welding module, which comprises a workbench 1, a driving module, a laser welding head 2 and a material taking mechanism. The driving module is installed on the workbench 1, the laser welding head 2 and the material taking mechanism are both installed on the driving module, and the laser welding head 2 and the material taking mechanism can be driven by the driving module to make three-dimensional motion synchronously.

[0027] Further, the workbench 1 can be provided with a positioning platform for placing and positioning products. The driving module drives the laser welding head 2 and the material taking mechanism to move synchronously, the material taking mechanism is used for adsorbing a material piece to be welded and transferring it to a specified welding position on the product, and then the laser welding head 2 is used for welding the material piece on the product.

[0028] In the utility model, the driving module includes X-axis linear module 17, Y-axis linear module 18 and Z-axis linear module 19, Y-axis linear module 18 has two and is installed side by side on the workbench 1, X-axis linear module 17 is erected on Y-axis linear module 18, Z-axis linear module 19 is installed on X-axis linear module 17, and the laser welding head 2 and the material taking mechanism are all installed on Z-axis linear module 19 through welding head mounting plate 22. X-axis linear module 17, Y-axis linear module 18 and Z-axis linear module 19 can all adopt ball screw linear module or linear motor module, and X-axis linear module 17, Y-axis linear module 18 and Z-axis linear module 19 are used for driving the laser welding head 2 and the material taking mechanism to move synchronously in three dimensions.

[0029] Wherein, Z-axis linear module 19 is provided with Z-axis mounting plate 21 for connecting X-axis linear module 17, Z-axis mounting plate 21 is installed with camera 23, camera 23 is at the side of laser welding head 2, camera 23 is used for obtaining the image information of product, the welding position on the product is positioned, and the welding process of laser welding head 2 is guided visually, and precise welding is realized.

[0030] Refer to Figures 2 to 7 The material taking mechanism is arranged directly below the laser welding head 2, and the material taking mechanism includes material taking mounting plate 3, vacuum adsorption block 4, pressing jaw 5 and driving device, the material taking mounting plate 3 is fixedly connected to welding head mounting plate 22, the vacuum adsorption block 4 is arranged below the material taking mounting plate 3 and is slidably connected to the material taking mounting plate 3. The bottom of the vacuum adsorption block 4 is provided with vacuum suction hole 401 for adsorbing the material piece to be welded, and the vacuum adsorption block 4 is also provided with empty hole 402 opposite the welding area on the material piece, the pressing jaw 5 is installed on the material taking mounting plate 3 and extends into the empty hole 402, and the pressing jaw 5 is used for pressing the material piece. The driving device is fixed on the material taking mounting plate 3 and is used for driving the vacuum adsorption block 4 to lift to leave the material piece.

[0031] When working, a piece to be welded is adsorbed by the vacuum adsorption block 4, and is transferred to a designated welding position on a product, then the vacuum adsorption block 4 is controlled not to adsorb the piece, at the same time, the driving device drives the vacuum adsorption block 4 to lift, so that the vacuum adsorption block 4 is separated from the piece, then the piece is pressed by the pressing jaw 5, and then the piece is welded by the laser welding head 2. The piece is pressed by the pressing jaw 5 during welding, so that the piece can be accurately welded at the designated position of the product, the pressing jaw 5 can not absorb too much heat of the laser beam, and the temperature is not too high, meanwhile, the contact area between the pressing jaw 5 and the piece is small, the damage of the piece caused by the vacuum adsorption block 4 absorbing heat of the laser beam is avoided, and the quality and the pass rate of the welded product are improved.

[0032] With reference to Figure 3 The taking mechanism further comprises an adsorption block mounting plate 7 located below the taking mounting plate 3, the top of the adsorption block mounting plate 7 is fixed with a plurality of guide columns 8, a plurality of linear bearings 20 are mounted on the taking mounting plate 3, the plurality of guide columns 8 are slidably inserted into the plurality of linear bearings 20 one by one, and the upper ends of the guide columns 8 are all mounted with stop screws to prevent the guide columns 8 from being pulled out of the linear bearings 20. The guide columns 8 are all sleeved with first springs (not shown in the figure), the lower ends of the first springs are directly elastically abutted against the adsorption block mounting plate 7, and the upper ends of the first springs are elastically abutted against the linear bearings 20, so that the first springs can always exert downward elastic forces on the adsorption block mounting plate 7, and the vacuum adsorption block 4 is fixed at the bottom of the adsorption block mounting plate 7. Through the structure design, the vacuum adsorption block 4 can float up and down relative to the taking mounting plate 3, flexible taking and placing of the piece can be realized under the elastic force of the first springs, and the stability and reliability of the vacuum adsorption block 4 in adsorption can be improved.

[0033] It can be understood that the taking mounting plate 3 and the adsorption block mounting plate 7 in the utility model are both provided with through holes for the laser beam to pass through.

[0034] With reference to Figures 3 to 5 In the embodiment, the pressing jaw 5 is provided with two symmetrically distributed ones. The bottom of each side of the taking mounting plate 3 is provided with a vertical plate 11, the side surface of each vertical plate 11 facing each other is fixed with a sliding rail 12, and the two pressing jaws 5 are slidably matched on the two sliding rails 12 through sliding blocks 13, and the top of the pressing jaw 5 and the bottom of the taking mounting plate 3 are both mounted with second springs 14. The second springs 14 exert elastic forces on the pressing jaws 5, so that the pressing jaws 5 can be pressed on the piece, the stability and reliability of the pressing on the piece can be ensured, and the piece can be prevented from being damaged.

[0035] The bottom of the two vertical plates 11 extends a stop 1101 towards each other, and the slider 13 is stopped on the stop 1101 under the elastic force of the second spring 14 when the pressure clamps 5 are not pressed against the material sheet.

[0036] Continuing to refer to Figures 3 to 5 The driving device includes a cylinder 6 and a push plate 9, and the cylinder 6 in the embodiment is a slide cylinder fixed on one of the vertical plates 11, and the push plate 9 is installed on the cylinder 6. The top of the adsorption block mounting plate 7 is fixed with a stopper 10, which is Z-shaped in the embodiment, and the top of the stopper 10 is provided with a boss 1001 in the horizontal direction, and the end of the push plate 9 extends below the boss 1001, and the cylinder 6 can drive the push plate 9 and drive the adsorption block mounting plate 7 and the vacuum adsorption block 4 to lift through the stopper 10.

[0037] Preferably, the pressure clamps 5 are made of transparent glass. The bottom of each of the two pressure clamps 5 is provided with a pressure tooth 501, and the two pressure teeth 501 are arranged in an inverted "8" shape.

[0038] Referring to Figure 2 One side of the material taking mounting plate 3 is provided with a laser sensor 15 for detecting the height of the laser welding head 2. Once the height of the laser welding head 2 is detected to be out of the set value, the control system of the precision laser welding module will issue an alarm to remind the operator, so as to avoid the deviation of the position of the laser welding head 2 after long-term work, thereby reducing the welding precision.

[0039] The precision laser welding module further comprises an exhaust fan 16 fixed on the welding head mounting plate 22 and located on one side of the laser welding head 2, which is used to exhaust the smoke generated during welding to prevent the lens of the laser welding head 2 from being polluted.

[0040] The precision laser welding module of the utility model absorbs the material sheet to be welded by the vacuum adsorption block 4, and after the material sheet is transferred to the specified welding position on the product, the vacuum adsorption block 4 is lifted away from the material sheet by the driving device, and the material sheet is pressed by the pressure clamps 5 during welding to prevent the material sheet from deviating during welding, so that the material sheet can be accurately welded at the specified position of the product, the heat absorption of the laser beam by the pressure clamps 5 is small, and the temperature will not be too high, and the contact area between the pressure clamps 5 and the material sheet is small, which effectively avoids the damage to the material sheet caused by the heat absorption of the laser beam by the vacuum adsorption block 4, and significantly improves the quality and the pass rate of the welding finished product.

[0041] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is merely a preferred embodiment of the present application, and the present application can be carried out in many different ways than described herein, and the present application is not limited to the above disclosed specific implementation. Meanwhile, any person skilled in the art can utilize the above disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A precision laser welding module, characterized by, Include: Workbench (1), drive module mounted on the workbench (1) and laser welding head (2) and material taking mechanism driven by the drive module to make synchronous three-dimensional motion, the material taking mechanism is arranged below the laser welding head (2), the material taking mechanism comprises a material taking mounting plate (3), a vacuum adsorption block (4), a pressing jaw (5) and a driving device, the vacuum adsorption block (4) is slidably connected to the material taking mounting plate (3), the bottom of the vacuum adsorption block (4) is provided with a vacuum adsorption hole (401) for adsorbing the material to be welded, and the vacuum adsorption block (4) is also provided with a clearance hole (402) corresponding to the welding area on the material, the pressing jaw (5) is mounted on the material taking mounting plate (3) and extends into the clearance hole (402), and the pressing jaw (5) is used for pressing the material; the driving device is fixed on the material taking mounting plate (3), which is used for driving the vacuum adsorption block (4) to lift to leave the material.

2. The precision laser welding module of claim 1, wherein: The material taking mechanism further comprises an adsorption block mounting plate (7) located below the material taking mounting plate (3), the adsorption block mounting plate (7) and the material taking mounting plate (3) are slidably connected through a plurality of guide columns (8), and a first spring is sleeved on each of the guide columns (8), the first spring is used for always exerting an elastic downward force on the adsorption block mounting plate (7), and the vacuum adsorption block (4) is fixed on the bottom of the adsorption block mounting plate (7).

3. The precision laser welding module of claim 2, wherein: The driving device comprises a cylinder (6) and a push plate (9) mounted on the cylinder (6), the adsorption block mounting plate (7) is fixed with a stop block (10), and the cylinder (6) can drive the push plate (9) and drive the adsorption block mounting plate (7) and the vacuum adsorption block (4) to lift through the stop block (10).

4. The precision laser welding module of claim 3, wherein: The top of the stop block (10) is provided with a boss (1001) in the horizontal direction, and the end of the push plate (9) extends below the boss (1001).

5. The precision laser welding module of claim 1, wherein: The bottom of the material taking mounting plate (3) is provided with a vertical plate (11), the vertical plate (11) is fixed with a sliding rail (12), the pressing jaw (5) is slidably connected to the sliding rail (12) through a sliding block (13), and a second spring (14) is arranged between the pressing jaw (5) and the material taking mounting plate (3).

6. The precision laser welding module of claim 5, wherein: The bottom of the vertical plate (11) is provided with a stop table (1101), and the sliding block (13) is stopped on the stop table (1101) under the elastic force of the second spring (14).

7. The precision laser welding module of claim 1, wherein: The pressing jaw (5) is provided with two symmetrically distributed ones, both of which are made of transparent glass material, the bottom of each of the two pressing jaws (5) is provided with a pressing tooth (501), and the two pressing teeth (501) are arranged in inverted "eight" shape.

8. The precision laser welding module of claim 1, wherein: A laser sensor (15) for detecting the height of the laser welding head (2) is mounted on one side of the material taking mounting plate (3).

9. The precision laser welding module of claim 1, wherein: It also includes a smoke extractor (16) arranged on one side of the laser welding head (2).

10. The precision laser welding module of claim 1, wherein: The driving module comprises an X-axis linear module (17), a Y-axis linear module (18) and a Z-axis linear module (19), the Y-axis linear module (18) is installed on the workbench (1), the X-axis linear module (17) is erected on the Y-axis linear module (18), the Z-axis linear module (19) is installed on the X-axis linear module (17), and the laser welding head (2) and the material taking mechanism are both installed on the Z-axis linear module (19).

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