Welding tool and welding device

Abstract

The utility model relates to the technical field of laser welding, in particular to a welding tool and a welding device.The welding tool comprises a follow-up base, a supporting rod and a rolling assembly, the follow-up base is used for being connected with welding equipment, and the follow-up base is driven by the welding equipment to move along a welding path of the welding equipment; the supporting rod is arranged on the follow-up seat and can rotate around a preset axis; the rolling assembly is arranged at the end, away from the follow-up base, of the supporting rod and can roll on the surface of the workpiece to be welded under driving of the supporting rod. When the welding head carries out welding along the welding path, the follow-up seat can be driven by welding equipment to synchronously move along the welding path, so that the rolling assembly at the lower end of the supporting rod is always located near the welding position of the to-be-welded workpiece, and the welding position of the to-be-welded workpiece is tightly pressed; dynamic following can be achieved while the workpiece to be welded is pressed, the plate combining gap in the laser welding process can be effectively reduced, and the yield and efficiency of the laser welding cooling plate process are greatly improved.

Description

Technical Field

[0001] This application relates to the field of laser welding technology, and particularly to a welding tooling and a welding device. Background Art

[0002] Welding is to connect two independent metal or non-metal components together in a certain spatial structure by means of heating, high temperature or high pressure, etc. Laser welding is to use the high-energy particles carried by the laser to perform energy-concentrating irradiation on the pre-welding part of the surface of the workpiece to be welded, so that it is heated and melted and then cooled and solidified to complete the welding. In order to meet the strength requirements of the joint of the workpiece to be welded, the contact surfaces of the workpiece to be welded should be kept in close contact as much as possible. In the application of laser welding of cooling plates, after the upper and lower plates are placed together, it is necessary to ensure that the gap between the plates is small enough to ensure the quality after laser welding.

[0003] Currently, most welding auxiliary pressing toolings adopt an edge pressing structure, that is, after the upper and lower plates are placed, the edge parts of the cooling plate are pressed by the surrounding claws for welding. However, in this way, there will be a large gap in the central area of the cooling plate, resulting in a poor welding effect after laser welding. Summary of the Utility Model

[0004] This application provides a welding tooling and a welding device to solve the problem of poor welding caused by a large gap between the plates during the laser welding process of the cooling plate in the prior art.

[0005] On the one hand, this application provides a welding tooling, including:

[0006] A follower seat for connecting with a welding device, and the follower seat moves along the welding path of the welding device under the drive of the welding device;

[0007] A support rod is arranged on the follower seat, and the support rod can rotate around a preset axis;

[0008] A rolling component is arranged at one end of the support rod away from the follower seat, and the rolling component can roll on the surface of the workpiece to be welded under the drive of the support rod.

[0009] In a possible design, the follower seat is in sliding fit with the welding device, and the follower seat is fixedly connected with the support rod;

[0010] Or, the follower seat is fixedly connected with the welding device, and the follower seat is in sliding fit with the support rod.

[0011] In a possible design, a welding avoidance hole is formed on the follower seat, the central axis of the welding avoidance hole is the preset axis, and the support rod can rotate around the central axis of the welding avoidance hole.

[0012] In a possible design, the follower seat has an annular structure.

[0013] In a possible design, the support rod includes a first pressing rod and a second pressing rod, and the first pressing rod and the second pressing rod are centrosymmetric about the center of the welding avoidance hole.

[0014] In a possible design, the first pressing rod and the second pressing rod respectively include:

[0015] A sleeve, connected to the follower seat;

[0016] A sliding rod, a part of the sliding rod is inserted into the sleeve, a first retaining ring is arranged at one end of the sliding rod, and the first retaining ring is in sliding fit with the inner wall of the sleeve; a second retaining ring is arranged at a position near the other end of the sliding rod, and the second retaining ring is located outside the sleeve;

[0017] A spring, sleeved on the sliding rod outside the sleeve, one end of the spring abuts against the sleeve, and the other end abuts against the second retaining ring.

[0018] In a possible design, the rolling component includes:

[0019] A shaft seat, installed at the lower end of the support rod, and a shaft hole is provided on the shaft seat;

[0020] A wheel axle, inserted through the shaft hole;

[0021] A roller, sleeved on the wheel axle.

[0022] In a possible design, the shaft hole is a rectangular hole, the length direction of the rectangular hole is the same as the length direction of the support rod, a pin shaft is further provided on the inner wall of the rectangular hole, a pin hole is provided on the wheel axle, the pin shaft is inserted through the pin hole, the axis of the pin hole is perpendicular to the axis of the wheel axle, and the wheel axle realizes swinging by rotating around the pin shaft.

[0023] In a possible design, a driver is further included, and the driver is used to drive the follower seat or the support rod to rotate around a preset axis.

[0024] On the other hand, the present application further provides a welding device, including the welding tooling as described above.

[0025] The beneficial effects of the present application are as follows:

[0026] The welding tooling of the present application includes a follower seat, a support rod, and a rolling component. The follower seat is connected to the welding equipment, and the support rod is arranged on the follower seat. In this way, when the welding head performs welding along the welding path, the follower seat can move synchronously along the welding path under the drive of the welding equipment, so that the rolling component at the lower end of the support rod moves along the welding path under the drive of the follower seat, ensuring that the rolling component is always in a state of dynamically tracking the welding head, that is, the rolling component is always located near the welding position of the workpiece to be welded, thereby pressing the welding position of the workpiece to be welded. While satisfying the pressing of the workpiece to be welded, it can also achieve dynamic following, which can effectively reduce the gap between the plates during laser welding and greatly improve the yield and efficiency of the laser welding cooling plate process.

[0027] The welding device provided by the present application includes the welding tooling in the present application, so it also includes all the above advantages of the welding tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 Structural schematic of the welding tooling provided by the embodiment of the present application Figure 1 ;

[0030] Figure 2 Structural schematic of the welding tooling provided by the embodiment of the present application Figure 2 ;

[0031] Figure 3 Structural schematic of the welding tooling provided by the embodiment of the present application Figure 3 ;

[0032] Figure 4 Bottom view of the welding tooling provided by the embodiment of the present application;

[0033] Figure 5 is Figure 4 Cross-sectional view taken along A-A in

[0034] Reference numerals:

[0035] 100. Follow-up seat; 110. Welding avoidance hole; 200. Support rod; 210. First pressure rod; 220. Second pressure rod; 221. Sleeve; 222. Slide bar; 223. First retaining ring; 224. Second retaining ring; 225. Spring; 226. Screw; 300. Rolling component; 310. Axle seat; 311. Axle hole; 320. Axle; 330. Roller; 340. Pin shaft; 400. Driver; 500. Bevel gear; 600. Welding equipment. Detailed implementation manners

[0036] The technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0037] The following combines Figures 1 - 5 to describe the welding tooling provided in the embodiments of the present application.

[0038] Referring to Figure 1 As shown, in the embodiment provided by the present application, the welding tooling includes a follow-up seat 100, a support rod 200, and a rolling component 300. The follow-up seat 100 is used to connect with the welding equipment 600, and the follow-up seat 100 moves along the welding path of the welding equipment 600 under the drive of the welding equipment 600; the support rod 200 is arranged on the follow-up seat 100, and the support rod 200 can rotate around a preset axis; the rolling component 300 is arranged at one end of the support rod 200 away from the follow-up seat 100, and the rolling component 300 can roll on the surface of the workpiece to be welded under the drive of the support rod 200. In some specific embodiments, the welding equipment 600 is a laser welding robot, and the laser welding robot emits laser to weld the workpiece to be welded. The welding path of the laser welding robot is preset. When the laser welding robot welds the workpiece to be welded along the welding path, the follow-up seat 100 moves along the welding path together with the laser welding robot. In some of these specific embodiments, the support rod 200 is located near the welding head, and the preset axis is the axis of the welding head. In this way, by rotating the support rod 200 around the welding head, the rolling component 300 at the lower end of the support rod 200 can avoid the weld in time when the welding equipment 600 turns. At the same time, since the support rod 200 rotates around the welding head and the rolling component 300 is installed at the lower end of the support rod 200, the distance between the weld and the rolling component 300 can be kept consistent all the time, ensuring that the rolling component 300 presses the weld position tightly.

[0039] Using the technical solutions in the above embodiments, when the welding head performs welding along the welding path, the follower seat 100 can move synchronously along the welding path under the drive of the welding device 600, so that the rolling assembly 300 at the lower end of the support rod 200 moves along the welding path under the drive of the follower seat 100, ensuring that the rolling assembly 300 is always in a state of dynamically tracking the welding head, that is, the rolling assembly 300 is always located near the welding position of the workpiece to be welded, thereby pressing the welding position of the workpiece to be welded. While satisfying the pressing of the workpiece to be welded, it can also achieve dynamic following, which can effectively reduce the gap between the plates during laser welding and greatly improve the yield and efficiency of the laser welding cooling plate process.

[0040] Referring to Figure 1 、 Figure 2 As shown, in some embodiments provided by the present application, the follower seat 100 is slidably matched with the welding device 600, and the follower seat 100 is fixedly connected to the support rod 200. In this way, by rotating the follower seat 100 to drive the support rod 200 to rotate, the rolling assembly 300 at the lower end of the support rod 200 can avoid the weld seam in time when the welding device 600 turns. In some specific embodiments, the follower seat 100 is slidably matched with the welding device 600, and a welding avoidance hole 110 is formed on the follower seat 100. The central axis of the welding avoidance hole 110 is a preset axis, and the laser emitted by the laser device passes through the welding avoidance hole 110 to reach the workpiece to be welded. The support rod 200 is arranged outside the welding avoidance hole 110 on the follower seat 100. By driving the follower seat 100 to rotate relative to the welding device 600, the support rod 200 can rotate around the central axis of the welding avoidance hole 110; in some of these specific embodiments, the follower seat 100 has an annular structure, and an annular chute is provided on the welding device 600. The follower seat 100 is slidably matched with the annular chute, and the laser emitted by the laser device passes through the center of the follower seat 100 to reach the workpiece to be welded. In this way, when the welding device 600 moves along the welding path, it can drive the follower seat 100 to move. At the same time, by driving the follower seat 100 to rotate in the annular chute, the support rod 200 can also rotate around the central axis of the annular follower seat 100, so that the rolling assembly 300 at the lower end of the support rod 200 can avoid the weld seam in time when the welding device 600 turns. In some of these specific embodiments, the welding tooling further includes a driver 400. The driver 400 is installed on the welding device 600. The driver 400 is a servo motor. A bevel gear 500 is sleeved on the output shaft of the driver 400. The upper end surface of the annular follower seat 100 is a conical surface, and teeth meshing with the bevel gear 500 are provided on the conical surface. The driver 400 drives the bevel gear 500 to rotate, and the bevel gear 500 meshes with the teeth on the upper end surface of the annular follower seat 100, thereby driving the annular follower seat 100 to rotate around its own axis, so that the support rod 200 and the rolling assembly 300 rotate around the central axis of the annular follower seat 100 to avoid the weld seam in time.

[0041] In some other embodiments provided by the present application, the follower seat 100 is fixedly connected to the welding device 600, and the follower seat 100 is slidably engaged with the support rod 200. For example, the follower seat 100 is fixedly connected to the welding device 600 by bolts. A welding avoidance hole 110 is formed in the center of the follower seat 100. A support ring (not shown in the figure) is fixed to the upper end of the support rod 200. The support ring is sleeved on the inner wall of the welding avoidance hole 110 and can rotate along the inner wall of the welding avoidance hole 110. The driver 400 is installed on the follower seat 100. The driver 400 is a servo motor. The driver 400 drives the support ring to rotate around its own axis through a gear structure, so that the support rod 200 and the rolling assembly 300 rotate around the central axis of the support ring to avoid the weld in time.

[0042] In some specific embodiments, programming can be performed according to the welding path of the welding device 600, and input into the driver 400 by the electronic control system, and the rotation angle of the follower seat 100 is controlled through gear transmission.

[0043] Refer to Figure 3 As shown, in some embodiments provided by the present application, the support rod 200 includes a first pressing rod 210 and a second pressing rod 220. The first pressing rod 210 and the second pressing rod 220 are centrosymmetric about the center of the welding avoidance hole 110. By providing the first pressing rod 210 and the second pressing rod 220, both sides of the weld can be pressed tightly at the same time, thereby effectively reducing the gap between the joint plates during laser welding. By making the first pressing rod 210 and the second pressing rod 220 centrosymmetric about the center of the welding avoidance hole 110, it can be ensured that after the follower seat 100 rotates, the distances between the first pressing rod 210, the second pressing rod 220 and the weld always remain the same, ensuring that the weld position is pressed tightly.

[0044] Refer to Figure 4 、 Figure 5As shown, in some embodiments provided by the present application, the first pressure bar 210 and the second pressure bar 220 respectively include a sleeve 221, a slide bar 222 and a spring 225. The sleeve 221 is connected to the follower seat 100; a part of the slide bar 222 is inserted into the sleeve 221. One end of the slide bar 222 is provided with a first retaining ring 223, and the first retaining ring 223 is slidably matched with the inner wall of the sleeve 221; a second retaining ring 224 is provided at a position near the other end of the slide bar 222, and the second retaining ring 224 is located outside the sleeve 221; the spring 225 is sleeved on the slide bar 222 outside the sleeve 221. One end of the spring 225 abuts against the sleeve 221, and the other end abuts against the second retaining ring 224. Thus, by providing the spring 225, the spring 225 actively drives the rolling assembly 300 to displace in the height direction through expansion and contraction, so as to adapt to the laser welding of the cooling plate with complex topography. In some specific embodiments, a screw 226 is further included. The upper end of the screw 226 is fixedly welded to the follower seat 100, and the lower end of the screw 226 is threadedly connected to the sleeve 221. By adding the screw 226 between the follower seat 100 and the sleeve 221, the overall height of the tooling can be adjusted.

[0045] Referring to Figure 3 As shown, in some embodiments provided by the present application, the rolling assembly 300 includes a shaft seat 310, a wheel shaft 320 and a roller 330. The shaft seat 310 is installed at the lower end of the support rod 200, and a shaft hole 311 is provided on the shaft seat 310; the wheel shaft 320 is inserted into the shaft hole 311; the roller 330 is sleeved on the wheel shaft 320. Specifically, there are two rollers 330, and the two rollers 330 are respectively sleeved on both ends of the wheel shaft 320. The rollers 330 can roll on the surface of the workpiece to be welded under the drive of the support rod 200 to press the welding position of the workpiece to be welded. In some specific embodiments, the shaft hole 311 is a rectangular hole, the length direction of the rectangular hole is the same as the length direction of the support rod 200, and a pin shaft 340 is further provided on the inner wall of the rectangular hole. A pin hole is provided on the wheel shaft 320, and the pin shaft is inserted into the pin hole. The axis of the pin hole is perpendicular to the axis of the wheel shaft 320, and the wheel shaft 320 realizes swinging by rotating around the pin shaft 340. Thus, by providing the pin shaft 340, the height difference that needs to be overcome by the rollers 330 on both sides of the shaft seat 310 during the movement of the mechanism can be eliminated to better cope with the complex topography of the plate.

[0046] The working process of the welding tooling of the present application during welding:

[0047] The robotic arm grabs and places the upper plate and the lower plate on the laser welding workbench in sequence;

[0048] The positioning clamps at the edge of the workbench limit the upper plate and the lower plate;

[0049] The laser welding robot moves to the starting point. The follower seat 100 moves synchronously with the laser welding head and presses down. After pressing down in place, laser welding starts;

[0050] During the welding process, when the laser welding head turns, the driver 400 drives the follower seat 100 to drive the first pressing rod 210 and the second pressing rod 220 to rotate by a preset angle, so that the rollers 330 at the lower ends of the first pressing rod 210 and the second pressing rod 220 are always located on both sides of the weld seam, pressing the positions around the weld seam while avoiding the weld seam;

[0051] After all the laser welding is completed, the follower seat 100 follows the laser welding equipment 600 to move away, and the positioning clamps at the edge of the workbench release the limit on the upper plate and the lower plate;

[0052] The robotic arm grabs the welded workpiece on the workbench and transfers it to the next process.

[0053] An embodiment of the present application also provides a welding device, including the welding tooling in the above embodiment.

[0054] It should be noted that since the welding device includes the welding tooling, it also includes all the above advantages of the welding tooling, which will not be elaborated here.

[0055] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In this application, unless otherwise clearly specified or limited, the terms "install", "connect", "couple", "fix", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In this application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0059] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A welding tooling, characterized in that, Comprising: A follower seat for connecting with a welding device, and the follower seat moves along the welding path of the welding device under the drive of the welding device; A support rod arranged on the follower seat, and the support rod can rotate around a preset axis; A rolling component arranged at one end of the support rod away from the follower seat, and the rolling component can roll on the surface of the workpiece to be welded under the drive of the support rod.

2. The welding tooling according to claim 1, characterized in that: The follower seat is in sliding fit with the welding device, and the follower seat is fixedly connected to the support rod; Or, the follower seat is fixedly connected to the welding device, and the follower seat is in sliding fit with the support rod.

3. The welding tooling according to claim 2, characterized in that: A welding avoidance hole is formed on the follower seat, and the central axis of the welding avoidance hole is the preset axis, and the support rod can rotate around the central axis of the welding avoidance hole.

4. The welding tooling according to claim 2, wherein: The follower seat is in a ring structure.

5. The welding tooling according to claim 3, wherein: The support rod includes a first pressure rod and a second pressure rod, and the first pressure rod and the second pressure rod are centrosymmetric about the center of the welding avoidance hole.

6. The welding tooling according to claim 5, wherein The first pressure rod and the second pressure rod respectively include: A sleeve connected to the follower seat; A sliding rod, a part of the sliding rod is arranged in the sleeve, a first retaining ring is arranged at one end of the sliding rod, and the first retaining ring is in sliding fit with the inner wall of the sleeve; a second retaining ring is arranged at a position near the other end of the sliding rod, and the second retaining ring is located outside the sleeve; A spring sleeved on the sliding rod outside the sleeve, one end of the spring abuts against the sleeve, and the other end abuts against the second retaining ring.

7. The welding tooling according to any one of claims 1-6, characterized in that, The rolling component includes: A shaft seat installed at the lower end of the support rod, and a shaft hole is formed in the shaft seat; A wheel shaft passing through the shaft hole; A roller sleeved on the wheel shaft.

8. The welding tooling according to claim 7, characterized in that: The shaft hole is a rectangular hole, the length direction of the rectangular hole is the same as the length direction of the support rod, a pin shaft is further arranged on the inner wall of the rectangular hole, a pin hole is formed in the wheel shaft, the pin shaft passes through the pin hole, the axis of the pin hole is perpendicular to the axis of the wheel shaft, and the wheel shaft realizes swinging by rotating around the pin shaft.

9. The welding tooling according to claim 2, characterized in that: It further includes a driver for driving the follower seat or the support rod to rotate around the preset axis.

10. A welding device, characterized in that: Comprising the welding tooling according to any one of claims 1-9.

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