Tailored blank laser welding seam positioning device

Abstract

The utility model discloses a tailored blank laser welding seam positioning device which comprises a supporting platform and a pair of welding tables arranged on the supporting platform, a welding groove for containing a positioning plate is formed between the welding tables, and the positioning plate can stretch out of or retract into the welding groove to be arranged in the welding groove and used for determining the position of a welding edge of a material plate in the welding groove. The welding table internally comprises an adsorption component used for fixing the material plates, a material pushing mechanism and positioning mechanisms are arranged on the periphery of the adsorption component, the positioning mechanisms are located on the two sides of the material plates and used for clamping and adjusting the welding position between the material plates, and the material pushing mechanism is used for pushing the material plates to be close to the positioning plates. The material pushing mechanism is adopted to be matched with the positioning mechanism, a material plate is adsorbed and fixed in an adsorption mode, manual interference is not needed, and automatic weld seam positioning is achieved; and the positioning mechanism can flexibly clamp the material plate, deformation of the material plate caused by too large clamping force can be effectively avoided, then the welding quality is improved, meanwhile, the welding position can be adjusted according to the welding requirement, and the applicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser tailor welding tooling, in particular to a laser tailor welding seam positioning device. BACKGROUND

[0002] Laser tailor welding technology can weld material plates of different sizes (such as thickness, width), materials or coatings together, and is widely used in the fields of automobiles, heavy trucks, etc. Before laser welding, the welding edges of two or more metal material plates need to be butt-jointed to form a welding seam, so as to ensure that the welding seam falls into the welding groove and avoid welding the material plate and the supporting platform together for subsequent laser welding.

[0003] The laser tailor welding centering device with publication number CN106425133A limits the position of the material plate through fixed blocks, and clamps the material plate through a driving cylinder. However, when the material plate is positioned, it is easy to cause the material plate to deform and lift, which affects the welding quality. For material plates with relatively thin thickness, the material plate is easily damaged. Moreover, when the welding edge length of the material plate is inconsistent, it is difficult to adjust the welding position of the two material plates, and only one side of the material plate can be welded, which is difficult to be compatible with different forms of welding and has poor applicability. CONTENT OF THE UTILITY MODEL

[0004] In view of the above technical problems, the present application provides a laser tailor welding seam positioning device, which adopts a flexible clamping mode to avoid the deformation of the material plate affecting the welding quality, can adjust the welding position between the two material plates, and is more widely applicable to welding conditions. The following technical solutions are adopted:

[0005] The laser tailor welding seam positioning device comprises a supporting platform and a pair of welding tables arranged on the supporting platform, a welding groove is arranged between the welding tables, and a positioning plate is arranged in the welding groove.

[0006] The positioning plate can extend out of or retract into the welding groove, and is used to determine the position of the welding edge of the material plate in the welding groove.

[0007] The welding table internally comprises an adsorption component for fixing the material plate, a material pushing mechanism and a positioning mechanism are arranged on the periphery of the adsorption component, the positioning mechanism is arranged on both sides of the material plate, can flexibly clamp and adjust the welding position between the material plates, and the material pushing mechanism is used to push the material plate close to the positioning plate.

[0008] Preferably, a jacking mechanism is arranged between the supporting platform and the welding table, and is used to make the positioning plate extend out of or retract into the welding groove and adjust the height of the material plate.

[0009] Preferably, the jacking mechanism comprises a first wedge-shaped block, a driving assembly, and a second wedge-shaped block connected to the welding table, and the driving assembly is used to drive the first wedge-shaped block to move the second wedge-shaped block.

[0010] Further preferably, a plurality of rolling portions are arranged on the first wedge-shaped block, and the rolling portions respectively abut against the second wedge-shaped block and the support platform.

[0011] Preferably, the positioning mechanism comprises a movable stopper and a flexible clamping assembly arranged on two sides of the material plate respectively, the movable stopper is capable of moving along the y-axis to adjust the position of the material plate, and the flexible clamping assembly is capable of moving along the y-axis to approach the movable stopper.

[0012] Preferably, the flexible clamping assembly comprises a second power component and a connecting plate, and a pair of push rods rotatably connected to one end of the connecting plate, and the push rods are connected by elastic components.

[0013] Preferably, a guide wheel is arranged on the movable stopper and the flexible clamping assembly, and the guide wheels abut against two sides of the material plate.

[0014] Preferably, the material pushing mechanism is arranged on the welding table away from the welding groove.

[0015] The material pushing mechanism comprises a top plate, and the top plate is capable of moving along the x-axis to push the material plate to approach the positioning plate.

[0016] Preferably, the welding table is provided with a containing groove for containing the positioning mechanism, the material pushing mechanism and the adsorption component.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] (1) The material pushing mechanism cooperates with the positioning mechanism, and the material plate is adsorbed and fixed by the adsorption mode, without manual intervention, so that automatic positioning of the welding seam is realized; and the positioning mechanism can flexibly clamp the material plate, so that the deformation of the material plate caused by excessive clamping force can be effectively avoided, thereby improving the welding quality.

[0019] (2) The positioning mechanism can adjust the welding position in the length direction between the material plates, so as to be suitable for material plates of different lengths; at the same time, the jacking mechanism can adjust the welding position in the height direction between the material plates, so as to be suitable for material plates of different thicknesses; the welding position can be adjusted according to the welding requirement, so that the applicability of the device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a position structure schematic diagram of the application;

[0021] Figure 2 is a welding table position structure schematic diagram of the application;

[0022] Figure 3 is a front view of the application;

[0023] Figure 4 is a top view of the present application;

[0024] Figure 5 is a structural schematic view of the positioning mechanism of the present application;

[0025] Figure 6 is a perspective view of the present application Figure 3 is a sectional view at A-A in figure.

[0026] in the figure:

[0027] 1, support platform, 2, positioning plate, 3, welding table, 31, first welding table, 32, second welding table;

[0028] 4, jacking mechanism, 41, driving assembly, 42, second wedge block, 43, first wedge block;

[0029] 5, positioning mechanism, 51, movable stop block, 51.1, first power component, 51.2, mounting plate, 52, flexible clamping assembly, 52.1, second power component, 52.2, connecting plate, 52.3, push rod, 52.4, elastic component, 53, guide wheel;

[0030] 6, pushing mechanism, 7, containing groove, 8, guide assembly, 9, welding groove, 10, material plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the present application. Obviously, the embodiments described in the present application are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] Reference Figures 1 to 6 , the present application is further described in detail:

[0033] in combination Figure 1 and Figure 3 , the laser tailor-welded joint positioning device comprises a support platform 1 and a positioning plate 2, and a pair of welding tables 3 arranged on the support platform 1, a welding groove 9 is arranged between the welding tables 3, and the positioning plate 2 is arranged in the welding groove 9; wherein the welding tables 3 comprise a first welding table 31 and a second welding table 32, which are used to fix the material plate 10 respectively.

[0034] The positioning plate 2 can extend out of or retract into the welding groove 9, which is used to determine the position of the welding edge of the material plate 10 in the welding groove 9; that is, the position of the welding seam in the welding groove 9.

[0035] in combination Figure 2 andFigure 4 The welding table 3 is internally provided with adsorption components for fixing the material plates 10, and the adsorption components are peripherally provided with a material pushing mechanism 6 and a positioning mechanism 5, the positioning mechanism 5 is located on both sides of the material plates 10, and is used for flexibly clamping and adjusting the welding position between the material plates 10, and the material pushing mechanism 6 is used for pushing the material plates 10 to be close to the positioning plate 2; the adsorption component is an adsorption platform; when the butt joint of the welding seam of the material plates 10 is completed, the adsorption platform adsorbs and fixes the material plates 10, and does not cause damage to the material plates 10.

[0036] The welding table 3 is internally provided with adsorption components for fixing the material plates 10, and the adsorption components are peripherally provided with a material pushing mechanism 6 and a positioning mechanism 5, the positioning mechanism 5 is located on both sides of the material plates 10, and is used for flexibly clamping and adjusting the welding position between the material plates 10, and the material pushing mechanism 6 is used for pushing the material plates 10 to be close to the positioning plate 2; the adsorption component is an adsorption platform; when the butt joint of the welding seam of the material plates 10 is completed, the adsorption platform adsorbs and fixes the material plates 10, and does not cause damage to the material plates 10.

[0037] In the embodiment, the supporting platform 1 and the welding table 3 are both provided with a jacking mechanism 4, the jacking mechanism 4 is used for enabling the positioning plate 2 to extend out of or retract into the welding groove 9, and adjusting the height of the material plates 10, so as to adjust the welding position between the material plates 10 with different thicknesses. When it is necessary to position the welding seam position of the material plates 10, the first welding table 31 and the second welding table 32 are respectively driven by the jacking mechanism 4 to move (descend), and then the positioning plate 2 extends out of or retracts into the welding groove 9, so as to determine the position of the welding seam of the material plates 10 in the welding groove 9.

[0038] The jacking mechanism 4 includes a first wedge block 43 and a second wedge block 42, and a driving assembly 41 for driving the first wedge block 43 to move, the second wedge block 42 is connected with the supporting platform 1, and the driving assembly 41 can be a pneumatic cylinder. The second wedge block 42 is driven by the driving assembly 41 to push the first wedge block 43, so as to drive the corresponding welding table 3 to ascend or descend. Of course, in other embodiments not shown, the jacking mechanism 4 can also be a lead screw mechanism or the like.

[0039] In order to reduce the resistance of the jacking mechanism 4, a plurality of rolling parts are arranged on the first wedge block 43, and the rolling parts abut against the second wedge block 42 and the supporting platform 1 respectively; the rolling parts can be rollers or rollers, and the frictional resistance during movement is reduced by the rolling parts.

[0040] In some embodiments, the jacking mechanism 4 is further provided with a guide assembly 8 on both sides, the guide assembly 8 is connected with a guide sleeve of the welding table 3 and a guide column of the supporting platform 1, and is used for supporting and guiding the movement of the welding table 3.

[0041] In the embodiment, the positioning mechanism 5 comprises movable stoppers 51 and flexible clamping assemblies 52 respectively arranged on both sides of the material plates 10. The movable stoppers 51 can be moved along the y-axis to adjust the position of the material plates 10 to determine the welding position between the material plates 10. The flexible clamping assemblies 52 can be moved along the y-axis to approach the movable stoppers 51 and can flexibly clamp the material plates 10 therebetween to avoid excessive clamping force from deforming the material plates 10 and thus improve the welding quality, and meanwhile can clamp material plates 10 of different lengths.

[0042] The movable stopper 51 comprises a mounting plate 51.2 and a first power component 51.1 for driving the mounting plate 51.2 to move along the y-axis direction. The first power component can be a pneumatic cylinder.

[0043] The flexible clamping assembly 52 comprises a second power component 52.1, a connecting plate 52.2, and a pair of push rods 52.3 rotatably connected to one end of the connecting plate 52.2. Elastic components 52.4 are arranged between the push rods 52.3 to achieve flexible clamping of the material plates 10. The elastic components 52.4 are springs. The second power component 52.1 can be a pneumatic cylinder. When the flexible clamping assembly 52 clamps the material plates 10, the push rods 52.3 abut the outer edges of the material plates 10 and open to both sides. At this time, the springs are stretched, and through the reaction force of the stretched springs, the push rods 52.3 are always abutted against the outer edges of the material plates 10 to ensure that the clamped material plates 10 do not loosen and are not prone to excessive clamping force.

[0044] In an embodiment not shown, the first power component and the second power component can also be a lead screw mechanism or the like.

[0045] In some embodiments, guide wheels 53 are arranged on the movable stoppers 51 and the flexible clamping assemblies 52 to abut both sides of the material plates 10 to reduce the frictional resistance when the material pushing mechanism 6 pushes the material plates 10 to move and reduce the working load of the material pushing mechanism 6.

[0046] In the embodiment, the material pushing mechanism 6 is arranged on the splicing table away from the welding groove 9. The material pushing mechanism 6 comprises a top plate that can move along the x-axis direction. The top plate can be driven by a pneumatic cylinder. After the flexible clamping assembly 52 clamps the material plates 10 in cooperation with the movable stoppers 51, the material pushing mechanism 6 pushes the material plates 10 to approach the positioning plate 2 and abut the positioning plate 2.

[0047] In some embodiments, the material pushing mechanism 6 can have the same structure as the flexible clamping assembly 52 to further avoid deformation of the material plates 10.

[0048] The working principle of the present application is as follows: the material plate 10 is placed on the corresponding welding table 3 by artificial or mechanical arm, the jacking mechanism 4 adjusts the height of the material plate 10 and extends the positioning plate 2, the movable stop block 51 moves to adjust the position of the material plate 10, then the flexible clamping assembly 52 moves to one side of the movable stop block 51 to clamp the material plate 10, then the pushing mechanism 6 on any welding table 3 pushes the corresponding material plate 10 to be close to and abut against the positioning plate 2, the adsorption component adsorbs and fixes the material plate 10, the jacking mechanism 4 drives the material plate 10 to ascend synchronously, the positioning plate 2 is retracted into the welding groove 9, the pushing mechanism 6 on the other welding table 3 pushes the corresponding material plate 10 to move to one side of the positioning plate 2, so that the welding edges of the two material plates 10 are butted, the adsorption component adsorbs and fixes the material plate 10, and waits for welding.

Claims

1. A laser-welded seam positioning device, characterized in that: It includes a support platform and a pair of welding tables disposed on the support platform, wherein a welding groove is provided between the welding tables and a positioning plate is provided in the welding groove; The positioning plate can extend or retract into the welding groove to determine the position of the welding edge of the material plate within the welding groove. The welding station includes an adsorption component for fixing the material plate. The adsorption component is surrounded by a pushing mechanism and a positioning mechanism. The positioning mechanism is located on both sides of the material plate and can flexibly clamp and adjust the welding position between the material plates. The pushing mechanism is used to push the material plate closer to the positioning plate.

2. The laser-welded seam positioning device according to claim 1, characterized in that: A lifting mechanism is provided between the support platform and the welding table to extend or retract the positioning plate into the welding groove and to adjust the height of the material plate.

3. The laser welding seam positioning device according to claim 2, characterized in that: The lifting mechanism includes a first wedge block and a drive assembly, as well as a second wedge block connected to the welding table. The drive assembly is used to drive the first wedge block to push the second wedge block to move.

4. The laser welding seam positioning device according to claim 3, characterized in that: The first wedge block is provided with several rolling parts, which respectively abut against the second wedge block and the support platform.

5. The laser-welded seam positioning device according to claim 1, characterized in that: The positioning mechanism includes movable blocks and a flexible clamping assembly located on both sides of the material plate. The movable blocks can move along the y-axis to adjust and limit the position of the material plate, and the flexible clamping assembly can move along the y-axis to approach the movable blocks.

6. The laser-welded seam positioning device according to claim 5, characterized in that: The flexible clamping assembly includes a second power component and a connecting plate, as well as a pair of push rods rotatably connected to the connecting plate at one end, with an elastic component connecting the push rods.

7. The laser-welded seam positioning device according to claim 5, characterized in that: Both the movable stop and the flexible clamping assembly are equipped with guide wheels, which abut against both sides of the material plate.

8. The laser-welded seam positioning device according to claim 1, characterized in that: The material pushing mechanism is located on the welding platform on the side away from the welding groove; The pushing mechanism includes a top plate, which can move along the x-axis to push the material plate closer to the positioning plate.

9. The laser-welded seam positioning device according to claim 1, characterized in that: The welding platform is provided with a receiving groove to accommodate the positioning mechanism, the pushing mechanism and the adsorption component.

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