Welding mechanism and device

Abstract

The utility model provides a welding mechanism and device. The welding mechanism comprises a mounting seat; the laser assembly is arranged on the mounting seat; the pressing assembly is arranged below the laser assembly and can move to press a workpiece in the vertical direction, an avoiding hole is formed in the pressing assembly, the avoiding hole corresponds to the welding position of the workpiece, and a light outlet of the laser assembly faces the avoiding hole; and the distance measuring assembly is arranged on the mounting base and can move to the position above the pressing assembly in the horizontal direction, so that the distance measuring assembly can measure the distance of the welding part of the workpiece through the avoiding hole. The welding mechanism is high in workpiece welding precision.

Description

Technical Field

[0001] This utility model belongs to the field of laser welding technology, and more specifically, it relates to a welding mechanism and device. Background Technology

[0002] When laser welding parts, to improve welding accuracy, a clamping structure is often needed to first clamp the welding area of ​​the workpiece, and then a rangefinder is used to measure the distance to the workpiece before welding. However, currently, rangefinders are generally located beside the laser head. After the welding area of ​​the workpiece is clamped, a height difference will occur between the welding area and other parts of the workpiece. The rangefinder located beside the workpiece cannot measure the distance to the welding area, which will affect the subsequent welding accuracy. Utility Model Content

[0003] The present invention relates to a welding mechanism and device that can ensure the welding accuracy of workpieces.

[0004] The technical solution adopted in this utility model is a welding mechanism, including:

[0005] Mounting base;

[0006] The laser assembly is mounted on the mounting base;

[0007] A clamping assembly, disposed below the laser assembly, is vertically movable to clamp the workpiece. The clamping assembly has clearance holes corresponding to the welding portion of the workpiece, and the laser assembly's light outlet faces the clearance holes.

[0008] A ranging component is disposed on the mounting base and can be moved horizontally above the clamping component so that the ranging component can measure the distance of the welding part of the workpiece through the clearance hole.

[0009] In the welding mechanism of this application, a clamping component is positioned below a laser component. The clamping component has clearance holes corresponding to the light output port of the laser component, allowing the laser component to weld the workpiece clamped by the clamping component through these clearance holes. A ranging component is also included. This ranging component can move above the clamping component after the workpiece is clamped. The ranging component can measure the distance to the welding area of ​​the workpiece through the clearance holes of the clamping component. After measuring the distance, the laser component can perform high-precision welding on the workpiece based on the measurement result. In other words, by providing a ranging component that can move above the clamping component, the ranging component can measure the distance to the welding area of ​​the clamped workpiece before the welding component welds the workpiece, ensuring the accuracy of the distance measurement and thus the accuracy of the welding component's welding of the workpiece.

[0010] Optionally, the ranging assembly includes a ranging driver and a rangefinder. The ranging driver is disposed on the mounting base and is drivenly connected to the rangefinder so that the rangefinder can move between the laser assembly and the clamping assembly in a horizontal first direction.

[0011] Optionally, the ranging assembly further includes a guide structure, which is disposed on the mounting base along a first horizontal direction, and the rangefinder is slidably disposed on the guide structure.

[0012] Optionally, the mounting base includes mounting plates disposed opposite each other, the laser assembly is located between the mounting plates, and the clamping assembly and the ranging drive are respectively connected to the mounting plates;

[0013] The guide structure includes a guide rod and a slider slidably disposed on the guide rod. The guide rod is connected to the mounting plates disposed opposite each other along a horizontal first direction, and the rangefinder is disposed on the slider.

[0014] Optionally, the guiding structure includes guide rods disposed opposite each other along a horizontal second direction, with a gap formed between the guide rods through which a laser emitted by the laser assembly can pass;

[0015] A guide connector is connected between the sliders on each of the guide rods, the rangefinder is mounted on the guide connector, and the rangefinder drive is driven to connect with the guide connector.

[0016] Optionally, the guide structure further includes a first buffer member, which is disposed opposite to the ranging drive member and connected to one of the mounting plates, and the first buffer member is used to abut against the guide connector.

[0017] Optionally, a through hole may be provided on the mounting plate connected to the ranging drive, the through hole corresponding to the direction of the rangefinder, and the ranging drive can drive the rangefinder to move to the side of the mounting plate away from the laser component.

[0018] Optionally, the clamping assembly includes:

[0019] A clamping drive component is mounted on the mounting base;

[0020] A clamping component, wherein the clamping drive component is drivenly connected to the clamping component, the clamping component is provided with the clearance hole, and the clamping component is also provided with an air blowing hole and a dust extraction hole communicating with the clearance hole.

[0021] Optionally, the clamping assembly further includes a clamping connector, and the clamping drive is connected to the clamping member via the clamping connector, so that the clamping member can be misaligned with the clamping drive; and

[0022] A second buffer is provided between the clamping connector and the clamping member.

[0023] Optionally, it also includes:

[0024] An air curtain assembly, disposed on the mounting base and located between the laser assembly and the clamping assembly, is used to form an air curtain below the laser assembly; and

[0025] A vision component is mounted on the mounting base and located on one side of the laser component.

[0026] A welding apparatus includes a displacement mechanism and a welding mechanism, wherein the displacement mechanism is drivenly connected to the mounting base to drive the welding mechanism to move. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 One of the structural schematic diagrams of the welding mechanism provided by this utility model;

[0029] Figure 2 The second schematic diagram of the welding mechanism provided by this utility model;

[0030] Figure 3 A schematic diagram of the distance measuring component in the welding mechanism provided by this utility model;

[0031] Figure 4 A schematic diagram of the clamping component in the welding mechanism provided by this utility model.

[0032] Figure label:

[0033] 100. Mounting base; 110. Mounting plate; 120. Through hole; 130. Connecting plate;

[0034] 200. Laser components;

[0035] 300, clamping assembly; 310, clearance hole; 320, clamping drive component; 330, clamping component; 340, air blowing hole; 350, dust extraction hole; 360, clamping connector; 370, second buffer component;

[0036] 400. Distance measuring component; 410. Distance measuring drive component; 420. Distance measuring instrument; 430. Guide structure; 431. Guide rod; 432. Slider; 433. Guide connector; 434. First buffer component;

[0037] 500. Air curtain assembly; 600. Vision assembly. Specific Implementation

[0038] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In some descriptions of utility models, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] This application provides a welding mechanism for high-precision welding of workpieces, such as welding battery modules.

[0043] See Figure 1 A welding mechanism includes a mounting base 100, a laser component 200, a clamping component 300, and a ranging component 400.

[0044] The laser component 200 is mounted on the mounting base 100, and the light output port of the laser component 200 can emit laser light.

[0045] The clamping assembly 300 is positioned below the laser assembly 200 and can move vertically to clamp the workpiece. The clamping assembly 300 has a clearance hole 310 corresponding to the welding area of ​​the workpiece; that is, when the clamping assembly 300 clamps the workpiece, the clearance hole 310 precisely aligns with the welding area. The laser output port of the laser assembly 200 faces the clearance hole 310, and the laser emitted by the laser assembly 200 welds the workpiece through the clearance hole 310.

[0046] The ranging component 400 is disposed on the mounting base 100, and the ranging component 400 can be moved horizontally above the clamping component 300 so that the ranging component 400 can measure the distance of the welding part of the workpiece through the clearance hole 310.

[0047] During welding, the clamping assembly 300 is first clamped onto the workpiece, and the clearance hole 310 on the clamping assembly 300 is aligned with the welding part of the workpiece. Then, the ranging assembly 400 moves horizontally above the clamping assembly 300. The ranging assembly 400 can measure the distance to the welding part of the workpiece through the clearance hole 310. After the distance measurement is completed, the ranging assembly 400 can return to its initial position. The laser assembly 200 performs high-precision welding on the workpiece based on the distance measurement result.

[0048] In the welding mechanism of this application, a clamping component 300 is positioned below the laser component 200. The clamping component 300 has a clearance hole 310 corresponding to the light output port of the laser component 200, allowing the laser component 200 to weld the workpiece clamped by the clamping component 300 through the clearance hole 310. A ranging component 400 is also provided. After the clamping component 300 clamps the workpiece, the ranging component 400 can move above the clamping component 300. The ranging component 400 can measure the distance to the welding area of ​​the workpiece through the clearance hole 310. After measuring the distance, the laser component 200 can perform high-precision welding on the workpiece based on the measurement result. In other words, by providing a ranging component 400 that can move above the clamping component 300, the ranging component 400 can measure the distance to the welding area of ​​the clamped workpiece before the welding component welds the workpiece, ensuring the accuracy of the distance measurement and thus ensuring the accuracy of the welding component's welding of the workpiece.

[0049] In one embodiment, the ranging component 400 can be moved horizontally between the laser component 200 and the clamping component 300. It is understood that since the clamping component 300 is located below the laser component 200, when the ranging component 400 moves between the laser component 200 and the clamping component 300, the ranging component 400 can be positioned precisely above the clamping component 300. Simultaneously, the ranging component 400 will not interfere with the laser component 200. Furthermore, since the ranging component 400 can move horizontally, after measuring the distance, it can move away from the area between the laser component 200 and the clamping component 300, allowing the laser component 200 to emit a laser beam toward the workpiece through the clearance hole 310.

[0050] For details, please refer to Figure 3 The ranging assembly 400 may include a ranging drive 410 and a rangefinder 420. The ranging drive 410 is disposed on the mounting base 100 and is drivenly connected to the rangefinder 420 so that the rangefinder 420 can move between the laser assembly 200 and the clamping assembly 300 in a horizontal first direction. The ranging drive 410 may be a cylinder.

[0051] It should be noted that moving along the first horizontal direction refers to moving along the first direction on a horizontal plane.

[0052] Understandably, when the rangefinder 420 moves between the laser component 200 and the clamping component 300, the rangefinder 420 can be positioned above the clamping component 300. The rangefinder 420 can measure the distance to the welding part of the workpiece through the clearance hole 310 of the clamping component 300. After the distance measurement is completed, the rangefinder 420 can return to its initial position under the action of the distance measurement drive component 410.

[0053] Furthermore, the ranging component 400 may also include a guide structure 430, which is disposed on the mounting base 100 along a first horizontal direction. The rangefinder 420 is slidably disposed on the guide structure 430. When the rangefinder 420 moves, the guide structure 430 plays a guiding role.

[0054] It is understandable that the rangefinder 420 is driven and connected through the rangefinder drive 410, so the rangefinder 420 is movable rather than fixed. In order to ensure accurate acquisition of the welding distance between the welding part of the workpiece and the laser component 200, it is necessary to ensure that the distance between the rangefinder 420 and the laser component 200 in the vertical direction remains constant. Therefore, by setting the guide structure 430, it is possible to ensure that when the rangefinder 420 moves in the first horizontal direction, the position of the rangefinder 420 in the vertical direction remains unchanged, that is, to ensure that the distance between the rangefinder 420 and the laser component 200 in the vertical direction remains constant. Therefore, by adding the distance between the rangefinder 420 and the welding part detected by the rangefinder 420 to the distance between the rangefinder 420 and the laser component 200, the distance between the laser component 200 and the welding part can be accurately obtained.

[0055] See Figure 1 and Figure 3 In order to facilitate the installation of the guide structure 430 and make the structure of the entire welding mechanism more reasonable and compact, the mounting base 100 may include mounting plates 110 arranged opposite each other, the laser assembly 200 is located between the mounting plates 110, and the clamping assembly 300, the guide structure 430 and the ranging drive 410 are respectively connected to the mounting plates 110.

[0056] Specifically, in one embodiment, the laser assembly 200, the press assembly, and the ranging drive assembly can be mounted on one of the mounting plates 110, one end of the guide structure 430 can be mounted on one of the mounting plates 110, and the other end of the guide structure 430 can be mounted on another mounting plate 110.

[0057] Furthermore, the guide structure 430 may include a guide rod 431 and a slider 432 slidably disposed on the guide rod 431. The guide rod 431 is connected to the mounting plates 110 disposed opposite each other along a horizontal first direction, and the rangefinder 420 is disposed on the slider 432. When the rangefinder drive 410 drives the rangefinder 420 to move along the horizontal first direction, the guide rod 431 and the slider 432 cooperate to guide the movement of the rangefinder 420.

[0058] In one embodiment, to further improve the accuracy of the rangefinder 420's movement along a first horizontal direction, the guide structure 430 may include guide rods 431 arranged opposite each other along a second horizontal direction. The guide rods 431 are spaced apart to allow laser light emitted by the laser assembly 200 to pass through, thus preventing laser damage to the guide rods 431. A guide connector 433 connects the sliders 432 on each guide rod 431. The rangefinder 420 is mounted on the guide connector 433, and the ranging drive 410 is driven to connect with the guide connector 433. This structure improves the accuracy of the rangefinder 420's movement and facilitates the installation of the rangefinder 420 and the movement of the rangefinder 420 by the ranging drive 410.

[0059] Furthermore, a through hole 120 can be provided on the mounting plate 110 connected to the ranging drive 410. The through hole 120 corresponds to the direction where the rangefinder 420 is located, and the ranging drive 410 can drive the rangefinder 420 to move to the side of the mounting plate 110 away from the laser component 200.

[0060] When the rangefinder 420 is located on the side of the mounting plate 110 away from the laser component 200 through the through hole 120, this position can be the initial position of the rangefinder 420. When distance measurement is required, the distance measuring drive 410 can drive the rangefinder 420 to move through the hole 120 between the laser component 200 and the clamping component 300. After the distance measurement is completed, the distance measuring drive 410 can drive the rangefinder 420 back through the hole 120 to the side of the mounting plate 110 away from the laser component 200.

[0061] It is understandable that dust and other impurities will be generated during the welding of the laser component 200. Driving the rangefinder 420 to the side of the mounting plate 110 away from the laser component 200 can prevent dust and other contaminants from polluting the rangefinder 420, and can also prevent the laser generated by the laser component 200 from affecting the rangefinder 420.

[0062] In addition, when the rangefinder 420 is mounted on the guide connector 433, the guide connector 433 can move the rangefinder 420 to the side of the mounting plate 110 away from the laser assembly 200 under the action of the rangefinder drive 410. At the same time, the guide connector 130 can also prevent dust from drifting from the through hole 120 to the location of the rangefinder 420.

[0063] See Figure 3 The guide structure 430 may further include a first buffer 434, which is disposed opposite to the ranging drive 410 and connected to one of the mounting plates 110. The first buffer 434 is used to abut against the guide connector 433. The first buffer 434 may be a hydraulic buffer, a hydraulic buffer, or a buffer spring, etc.

[0064] Specifically, when the ranging drive 410 drives the rangefinder 420 to move to a position close to the endpoint through the guide connector 433, the first buffer 434 can abut against the guide connector 433 and buffer the continued movement of the guide connector 433, and finally make the rangefinder 420 stop at the predetermined endpoint position through the guide connector 433, that is, the rangefinder 420 can accurately align with the clearance hole 310.

[0065] See Figure 4 The clamping assembly 300 may include a clamping drive 320 and a clamping member 330.

[0066] The clamping drive 320 is disposed on the mounting base 100. For example, in one embodiment, the clamping drive 320 may be disposed on one of the mounting plates 110 in the mounting base 100.

[0067] The clamping drive 320 is driven to clamp the workpiece by the clamping component 330.

[0068] Furthermore, the clamping member 330 is provided with a clearance hole 310, and the clamping member 330 is also provided with an air blowing hole 340 and a dust extraction hole 350 communicating with the clearance hole 310. Specifically, the rangefinder 420 can measure the distance of the welding part of the workpiece through the clearance hole 310, and the laser component 200 can weld the welding part through the clearance hole 310. During the welding process, the air blowing hole 340 can introduce protective gas into the clearance hole 310, and the dust extraction hole 350 can extract dust.

[0069] See Figure 2 The clamping assembly 300 may also include a clamping connector 360, and the clamping drive 320 is connected to the clamping member 330 through the clamping connector 360 so that the clamping member 330 can be offset from the clamping drive 320.

[0070] Understandably, after the clamping connector 360 causes the clamping drive 320 and the clamping member 330 to be misaligned, the rangefinder 420 can avoid being blocked by the clamping drive 320 when it performs distance measurement through the clearance hole 310 on the clamping member 330 and when the laser component 200 performs welding through the clearance hole 310.

[0071] Furthermore, a second buffer 370 may be provided between the clamping connector 360 and the clamping member 330. The second buffer 370 plays a buffering role when the clamping member 330 clamps the workpiece, preventing the clamping member 330 from damaging the workpiece. The second buffer 370 may be a buffer spring.

[0072] See Figure 1 The welding mechanism may also include an air curtain assembly 500, which is disposed on the mounting base 100 and located between the laser assembly 200 and the clamping assembly 300, for forming an air curtain below the laser assembly 200.

[0073] Understandably, after the air curtain assembly 500 forms an air curtain below the laser assembly 200, the air curtain can prevent waste slag from splashing onto the laser assembly 200 during the welding process.

[0074] Specifically, in one embodiment, the air curtain assembly 500 and the pressing assembly 300 can be respectively disposed on the mounting plates 110 disposed opposite to each other in the mounting base 100, that is, the air curtain assembly 500 is disposed on one of the mounting plates 110 and the pressing assembly 300 is disposed on the other mounting plate 110. This method can facilitate the installation of the air curtain assembly 500 and the pressing assembly 300, while avoiding interference between the air curtain assembly 500 and the pressing assembly 300, and can make the structure of the welding mechanism more compact.

[0075] In addition, in one embodiment, in order to improve the effect of preventing waste slag from splashing onto the laser component 200 during the welding process, multiple air curtain components 500 may be provided, and the multiple air curtain components 500 are distributed in the vertical direction to form multiple air curtains in the vertical direction below the laser component 200.

[0076] See Figure 2 The welding mechanism may also include a vision component 600, which is mounted on the mounting base 100 and located on one side of the laser component 200. The vision component 600 is used to detect the position of the workpiece and the welding area so that the clamping component 300 can clamp the workpiece and make the clearance hole 310 of the clamping component 300 correspond to the welding area of ​​the workpiece.

[0077] This application also provides a welding apparatus, including a displacement mechanism and a welding mechanism, wherein the displacement mechanism is drivenly connected to the mounting base 100 to drive the welding mechanism to move.

[0078] Specifically, the displacement mechanism can drive the welding mechanism to move to the workpiece placement area. Then, the clamping component 300 clamps the workpiece, the ranging component 400 moves above the clamping component 300 and measures the distance of the welding part through the clearance hole 310, and finally the laser component 200 welds the welding part through the clearance hole 310.

[0079] In one embodiment, in addition to the mounting plate 110 disposed opposite to it, the mounting base 100 may also include a connecting plate 130, which is connected to the mounting plate 110 and the displacement mechanism is connected to the connecting plate 130.

[0080] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of some utility models should be included within the protection scope of some utility models.

Claims

1. A welding mechanism, characterized in that, include: Mounting base; The laser assembly is mounted on the mounting base; A clamping assembly is disposed below the laser assembly and can move vertically to clamp the workpiece. The clamping assembly is provided with a clearance hole, which corresponds to the welding part of the workpiece. The light outlet of the laser assembly faces the clearance hole. as well as A ranging component is disposed on the mounting base and can be moved horizontally above the clamping component so that the ranging component can measure the distance of the welding part of the workpiece through the clearance hole.

2. The welding mechanism as described in claim 1, characterized in that, The ranging component includes a ranging driver and a rangefinder. The ranging driver is disposed on the mounting base and is driven to be connected to the rangefinder so that the rangefinder can move between the laser component and the clamping component in a horizontal first direction.

3. The welding mechanism as described in claim 2, characterized in that, The ranging component further includes a guide structure, which is disposed on the mounting base along a first horizontal direction, and the rangefinder is slidably disposed on the guide structure.

4. The welding mechanism as described in claim 3, characterized in that, The mounting base includes mounting plates disposed opposite each other, the laser assembly is located between the mounting plates, and the clamping assembly and the ranging drive are respectively connected to the mounting plates; The guide structure includes a guide rod and a slider slidably disposed on the guide rod. The guide rod is connected to the mounting plates disposed opposite each other along a horizontal first direction, and the rangefinder is disposed on the slider.

5. The welding mechanism as described in claim 4, characterized in that, The guiding structure includes guide rods arranged opposite each other along a horizontal second direction, with a gap formed between the guide rods through which a laser emitted by the laser assembly can pass; A guide connector is connected between the sliders on each of the guide rods, the rangefinder is mounted on the guide connector, and the rangefinder drive is driven to connect with the guide connector.

6. The welding mechanism as described in claim 5, characterized in that, The guide structure further includes a first buffer member, which is disposed opposite to the ranging drive member and connected to one of the mounting plates. The first buffer member is used to abut against the guide connector.

7. The welding mechanism as described in claim 5, characterized in that, A through hole may also be provided on the mounting plate connected to the ranging drive, the through hole corresponding to the direction of the rangefinder, and the ranging drive can drive the rangefinder to move to the side of the mounting plate away from the laser component.

8. The welding mechanism as described in any one of claims 1 to 7, characterized in that, The clamping assembly includes: A clamping drive component is mounted on the mounting base; A clamping component, wherein the clamping drive component is drivenly connected to the clamping component, the clamping component is provided with the clearance hole, and the clamping component is also provided with an air blowing hole and a dust extraction hole communicating with the clearance hole.

9. The welding mechanism as described in claim 8, characterized in that, The clamping assembly further includes a clamping connector, and the clamping drive is connected to the clamping member via the clamping connector, so that the clamping member can be misaligned with the clamping drive; and A second buffer is provided between the clamping connector and the clamping member.

10. The welding mechanism as described in claim 1, characterized in that, Also includes: An air curtain assembly is disposed on the mounting base and located between the laser assembly and the clamping assembly, for forming an air curtain below the laser assembly; as well as A vision component is mounted on the mounting base and located on one side of the laser component.

11. A welding apparatus, characterized in that, It includes a displacement mechanism and a welding mechanism as described in any one of claims 1 to 10, wherein the displacement mechanism is driven to the mounting base to drive the welding mechanism to move.

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