A welding apparatus based on jig type switching

Abstract

The utility model discloses a kind of welding equipment based on jig type switching, including welding device, carousel and pre-welding detection device, carousel rotatably arranged at the side of welding device, first jig and second jig are provided on carousel, first jig and second jig are respectively used to clamp different workpieces, carousel rotates to move first jig or second jig to the welding position of welding device;Pre-welding detection device is arranged in the upstream of welding device along the rotation direction of carousel, for detecting the welding position position of workpiece before entering welding position, to correct the welding position of welding device.The utility model discloses a kind of welding equipment based on jig type switching, different types of jig can be installed on carousel in advance, different types of jig are quickly switched to welding position using carousel, eliminate jig dismounting operation in the process of jig change, reduce the change time of jig, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of welding processing, and in particular to a welding device based on fixture type switching. Background Technology

[0002] Welding is a common processing method. Common welding equipment usually requires the use of fixtures to position and fix the workpiece before welding.

[0003] For fixtures used to position and fix welded workpieces, they are usually special fixtures, that is, fixtures specifically designed according to the shape and clamping requirements of the welded workpiece. Different types of fixtures are required for different welded workpieces.

[0004] Especially for the welding and processing of battery cells, there are many types of battery cells, and it is often necessary to switch between different types of battery cells.

[0005] However, existing welding equipment fixtures are generally fixedly installed on the welding station. Each time a different type of welding workpiece is changed, the previous fixture needs to be removed and the next fixture needs to be installed, resulting in long fixture changeover time and affecting production efficiency. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a welding device based on fixture type switching, which can quickly switch different types of fixtures to the welding station by pre-installing them on a turntable, eliminating the fixture disassembly and assembly operations during fixture changeover, reducing fixture changeover time, and improving production efficiency.

[0007] A welding device based on fixture type switching according to an embodiment of the present invention includes: Welding equipment, used for welding workpieces; A turntable is rotatably disposed on one side of the welding device. A first fixture and a second fixture are disposed on the turntable. The first fixture and the second fixture are arranged circumferentially along the rotation axis of the turntable. The first fixture and the second fixture are respectively used to clamp different workpieces. The turntable rotates to move the first fixture or the second fixture to the welding station of the welding device. A pre-welding inspection device is located upstream of the welding device along the rotation direction of the turntable, and is used to detect the welding position of the workpiece before it enters the welding station, so as to correct the welding position of the welding device.

[0008] A welding device based on fixture type switching according to an embodiment of the present invention has at least the following beneficial effects: 1. This utility model achieves rapid changeover of different workpieces by setting a first fixture and a second fixture on a turntable for clamping different workpieces, and by using the rotation of the turntable to switch fixtures. This eliminates the need to remove and install fixtures, significantly reducing fixture changeover time. It is particularly suitable for production scenarios with multiple varieties and small batches, such as battery cell welding.

[0009] 2. By setting up a turntable, the present invention allows for the integration of multiple different fixtures on the same equipment, adapting to the welding requirements of different workpieces, improving the versatility and utilization of the equipment, and reducing equipment investment costs.

[0010] 3. This utility model ensures the accuracy of the welding position by setting a pre-welding inspection device upstream of the welding device along the rotation direction of the turntable to detect the welding position of the workpiece and correct the welding position of the welding device. This reduces welding quality problems caused by workpiece positioning deviation or turntable rotation position deviation due to loading and clamping, and improves welding consistency and reliability.

[0011] According to some embodiments of the present invention, a post-weld inspection device is provided downstream of the rotation direction of the turntable in the welding device. The post-weld inspection device is used to inspect the welding effect, weld quality and / or weld position of the workpiece after welding.

[0012] The advantages of this invention are: by setting a post-weld inspection device downstream of the welding device along the rotation direction of the turntable to inspect the welding effect, weld quality and / or weld position, closed-loop control of the welding process is achieved. This enables timely detection of defective products and prevents them from flowing to subsequent processes. At the same time, online inspection avoids subsequent separate quality inspection, shortens the production cycle and reduces labor costs.

[0013] According to some embodiments of the present invention, the welding device includes a laser galvanometer, which is used to perform laser welding on the workpiece. The laser galvanometer corrects the welding position based on the welding position of the workpiece detected by the pre-welding inspection device.

[0014] The advantages are: This utility model uses a laser galvanometer to perform laser welding on the workpiece. As can be understood, the laser galvanometer has the characteristics of high speed and high precision. Combined with the position correction function of pre-welding detection, it realizes precise welding of the welding parts of the workpiece, which is particularly suitable for the welding needs of delicate workpieces such as battery cells. At the same time, the laser galvanometer can dynamically adjust the welding path according to the detection data to adapt to the shape and position changes of different workpieces, improving the intelligence and adaptability of the equipment. In addition, laser welding does not require contact with the workpiece, reducing the risk of fixture wear and workpiece damage, and extending the equipment life.

[0015] According to some embodiments of the present invention, the welding device further includes a first lifting module, and the laser galvanometer is disposed at the output end of the first lifting module. The first lifting module is used to adjust the height of the laser galvanometer.

[0016] The advantages are: by setting a first lifting module to adjust the height of the laser galvanometer, it can be understood that the first lifting module allows the height of the laser galvanometer to be adjusted to adapt to workpieces of different thicknesses or heights, ensuring the accuracy of the welding focus and improving the welding quality. At the same time, the adjustable height design of the laser galvanometer enables the equipment to handle more types of workpieces and expands the application range of the equipment.

[0017] According to some embodiments of the present invention, the first fixture and / or the second fixture are provided with a welding protection device, which is used to blow protective gas onto the welding part of the workpiece on the first fixture and / or the second fixture.

[0018] The advantages of this invention are: by setting up a welding protection device to blow inert gas or other protective gas onto the welding part of the workpiece, it effectively prevents metal oxidation and spatter during the welding process, thereby improving the quality and appearance of the weld. Moreover, for easily oxidized materials such as battery cells, the protective gas can reduce heat-affected zone damage, thereby improving the reliability and service life of the workpiece. In addition, the protective gas device is set on the first fixture and / or the second fixture, which allows for the arrangement of the welding protection device position for different workpieces, thereby enhancing process adaptability.

[0019] According to some embodiments of the present invention, the first fixture and / or the second fixture includes: Support base, used to support the workpiece; The first positioning part is used to position the first side of the workpiece; The first pressing block can approach and move away from the first positioning part to press against the second side of the workpiece that is opposite to the first side. The first spring is used to drive the first pressure block closer to the first positioning part to press the second side of the workpiece; The second positioning part is used to position the third side of the workpiece; The second pressure block can approach and move away from the second positioning part to press against the fourth side of the workpiece opposite to the third side. The second spring is used to move the second pressure block closer to the second positioning part to press the fourth side of the workpiece.

[0020] The advantages are: the present invention achieves precise positioning and clamping of the workpiece on all four sides through the design of the first positioning part, the second positioning part, the first spring driving the first pressure block, and the second spring driving the second pressure block, ensuring the stability of the workpiece during the welding process and reducing the risk of displacement. In addition, the first spring and the second spring provide uniform clamping force to the first pressure block and the second pressure block respectively, which can adapt to small changes in the size of the workpiece and improve the inclusiveness of the fixture.

[0021] According to some embodiments of the present invention, the first fixture and / or the second fixture further include a first cylinder, which is used to push the first pressing block away from the first positioning part so that the first pressing block disengages from the second side of the workpiece.

[0022] The advantage of this invention is that by setting a first cylinder to drive the first pressure block to release the workpiece, the workpiece can be released quickly, reducing manual operation time.

[0023] According to some embodiments of the present invention, the first fixture and / or the second fixture further include a transmission mechanism. The transmission mechanism includes an abutment and a first inclined surface. The first inclined surface is inclined relative to the sliding direction of the first pressure block. The abutment is disposed in one of the first pressure block and the second pressure block, and the first inclined surface is disposed in the other of the first pressure block and the second pressure block. When the first cylinder pushes the first pressure block away from the first positioning part, the abutment and the first inclined surface abut against each other and slide to drive the second pressure block away from the second positioning part.

[0024] The advantages of this invention are: by setting up a transmission mechanism, which includes an abutment and a first inclined surface, when the first cylinder pushes the first pressing block away from the first positioning part, the abutment and the first inclined surface slide against each other. Utilizing the guiding effect of the first inclined surface, the second pressing block can be driven away from the second positioning part, so that when the first cylinder is activated, it simultaneously drives the first and second pressing blocks to release, realizing the synchronous release of multiple pressing blocks, further shortening the workpiece loading and unloading time. In addition, the first and second pressing blocks are linked through the transmission mechanism, reducing the number of cylinders, simplifying the fixture structure, and reducing the failure rate and manufacturing cost.

[0025] According to some embodiments of the present invention, the first fixture and / or the second fixture are used to clamp the battery cell, the first positioning part is used to position one long side of the battery cell, the first pressing block is used to press the other long side of the battery cell, the second positioning part is used to position the short side of the battery cell with tabs, the second pressing block is used to press the short side of the battery cell without tabs, and the first fixture and / or the second fixture further includes a positioning seat and a pressing mechanism. The positioning seat is disposed on one side of the second positioning part, the positioning seat is used to support the positioning tabs, and the pressing mechanism is used to press the tabs.

[0026] The advantages are: by setting up a positioning seat and a clamping mechanism to specifically handle the tabs, this utility model ensures the stability of the tab positioning during battery cell welding and improves the welding accuracy of the battery cell tabs. At the same time, the tab positioning and clamping avoids the deformation or displacement of the tabs during welding, ensuring the consistency of battery cell performance. In addition, using the second positioning part to position the short side of the battery cell with tabs and the second clamping block to clamp the short side of the battery cell without tabs can avoid interference between the movement of the second clamping block and the positioning seat and clamping mechanism, making the structural layout of the fixture more reasonable.

[0027] According to some embodiments of the present invention, the pressing mechanism includes a third pressing block, a second lifting module and a first translation module. The second lifting module is used to drive the third pressing block to lift and lower to press and release the electrode tabs. The first translation module is used to drive the third pressing block to move horizontally so that the third pressing block avoids the electrode tabs.

[0028] The advantages are: by setting a second lifting module and a first translation module to control the lifting and horizontal movement of the third pressure block respectively, this utility model achieves precise clamping and avoidance of the electrode tab, avoids interference, and improves operating accuracy. The first translation module drives the third pressure block to move horizontally, allowing the third pressure block to avoid the electrode tab, which facilitates workpiece loading and unloading and meets the needs of high-speed production.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, 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.

[0031] Figure 1 This is a schematic diagram of the structure of a welding device based on fixture type switching according to an embodiment of the present invention; Figure 2 for Figure 1 The top view shown; Figure 3 for Figure 1 The diagram shows the structure of the first fixture and / or the second fixture; Figure 4 for Figure 3 The rear view shown; Figure 5 for Figure 3 The side view shown.

[0032] Reference numerals: 100-Welding device, 110-Turntable, 120-First fixture, 130-Second fixture, 140-Pre-welding inspection device, 150-Post-welding inspection device, 160-Laser galvanometer, 170-First lifting module, 180-Welding protection device, 190-Support base, 200-First positioning part, 210-First pressure block, 220-First spring, 230-Second positioning part, 240-Second pressure block, 250-Second spring, 260-First cylinder, 270-Transmission mechanism, 280-Abutting part, 290-First inclined surface, 300-Positioning seat, 310-Pressure mechanism, 320-Third pressure block, 330-Second lifting module, 340-First translation module. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This invention describes a welding device based on fixture type switching according to an embodiment of the present invention.

[0038] This utility model aims to provide an embodiment of a welding device based on fixture type switching.

[0039] Reference Figure 1 and Figure 2 A welding device based on fixture type switching according to an embodiment of the present invention includes a welding device 100, a turntable 110, a pre-welding inspection device 140 and a post-welding inspection device 150.

[0040] The welding apparatus 100 is used to weld workpieces.

[0041] Specifically, the welding apparatus 100 includes a laser galvanometer 160, which is used to perform laser welding on the workpiece. The laser galvanometer 160 corrects the welding position based on the welding position of the workpiece detected by the pre-welding inspection device 140.

[0042] Understandably, the laser galvanometer 160 features high speed and high precision. Combined with the position correction function of pre-welding inspection, it enables precise welding of the workpiece welding area, making it particularly suitable for welding delicate workpieces such as battery cells. At the same time, the laser galvanometer 160 can dynamically adjust the welding path according to the detection data, adapting to the shape and position changes of different workpieces, improving the intelligence and adaptability of the equipment. In addition, laser welding does not require contact with the workpiece, reducing the risk of fixture wear and workpiece damage, and extending the equipment life.

[0043] Furthermore, the welding device 100 also includes a first lifting module 170, and a laser galvanometer 160 is disposed at the output end of the first lifting module 170. The first lifting module 170 is used to adjust the height of the laser galvanometer 160.

[0044] Understandably, the first lifting module 170 allows for adjustment of the height of the laser galvanometer 160 to accommodate workpieces of different thicknesses or heights, ensuring the accuracy of the welding focus and improving welding quality. At the same time, the height-adjustable design of the laser galvanometer 160 enables the equipment to handle more types of workpieces, expanding the equipment's application range.

[0045] The turntable 110 is rotatably disposed on one side of the welding device 100. A first fixture 120 and a second fixture 130 are disposed on the turntable 110. The first fixture 120 and the second fixture 130 are arranged circumferentially along the rotation axis of the turntable 110. The first fixture 120 and the second fixture 130 are used to clamp different workpieces respectively. The turntable 110 rotates to transfer the first fixture 120 or the second fixture 130 to the welding station of the welding device 100.

[0046] It is understood that this embodiment achieves rapid changeover of different workpieces by setting a first fixture 120 and a second fixture 130 for clamping different workpieces on the turntable 110 and using the rotation of the turntable 110 to switch fixtures. This eliminates the need to remove and install fixtures, significantly reducing fixture changeover time. It is particularly suitable for production scenarios with multiple varieties and small batches, such as battery cell welding.

[0047] Meanwhile, this embodiment sets up a turntable 110, which allows multiple different fixtures to be integrated on the same device to meet the welding requirements of different workpieces, thereby improving the versatility and utilization of the equipment and reducing equipment investment costs.

[0048] Furthermore, the turntable 110 is also provided with a third fixture and a fourth fixture. The first fixture 120, the second fixture 130, the third fixture and the fourth fixture are arranged circumferentially along the rotation axis of the turntable 110. The first fixture 120, the second fixture 130, the third fixture and the fourth fixture are used to clamp different workpieces. The turntable 110 rotates to transfer the first fixture 120, the second fixture 130, the third fixture or the fourth fixture to the welding station of the welding device 100.

[0049] Furthermore, the first fixture 120, the second fixture 130, the third fixture, and the fourth fixture are arranged at equal angles around the rotation axis of the turntable 110.

[0050] In some specific embodiments, the welding equipment is also equipped with a direct drive motor, which is used to drive the turntable 110 to rotate. Therefore, using a linear drive motor to drive the turntable 110 to rotate helps to ensure high-precision positioning of the rotation angle of the turntable 110, thereby making the fixture changing accuracy of the turntable 110 higher.

[0051] Reference Figure 3 In some specific embodiments, a welding protection device 180 is provided on the first fixture 120 and / or the second fixture 130. The welding protection device 180 is used to blow protective gas onto the welding part of the workpiece on the first fixture 120 and / or the second fixture 130.

[0052] It is understood that this embodiment effectively prevents metal oxidation and spatter during welding by blowing inert gas or other protective gas onto the welding part of the workpiece through the welding protection device 180, thereby improving the quality and appearance of the weld. Moreover, for easily oxidized materials such as battery cells, the protective gas can reduce heat-affected zone damage, thereby improving the reliability and service life of the workpiece. In addition, the protective gas device is set on the first fixture 120 and / or the second fixture 130, which allows for the arrangement of the welding protection device 180 for different workpieces, thereby enhancing process adaptability.

[0053] Specifically, the welding protection device 180 may include a nozzle, a gas pipe connected to the nozzle, and a gas source for supplying protective gas to the gas pipe. The nozzle is used to blow protective gas onto the welding part of the workpiece.

[0054] Reference Figure 3 , Figure 4 and Figure 5 In some specific embodiments, the first fixture 120 and / or the second fixture 130 include a support base 190, a first positioning part 200, a first pressing block 210, a first spring 220, a second positioning part 230, a second pressing block 240, and a second spring 250; the support base 190 is used to support the workpiece; the first positioning part 200 is used to position a first side of the workpiece; the first pressing block 210 can approach and move away from the first positioning part 200, and the first pressing block 210 is used to press against a second side of the workpiece opposite to the first side; the first spring 220 is used to drive the first pressing block 210 closer to the first positioning part 200 to press against the second side of the workpiece; the second positioning part 230 is used to position a third side of the workpiece; the second pressing block 240 can approach and move away from the second positioning part 230, and the second pressing block 240 is used to press against a fourth side of the workpiece opposite to the third side; the second spring 250 is used to drive the second pressing block 240 closer to the second positioning part 230 to press against the fourth side of the workpiece.

[0055] It is understood that this embodiment, through the design of the first positioning part 200, the second positioning part 230, the first spring 220 driving the first pressure block 210, and the second spring 250 driving the second pressure block 240, achieves precise positioning and clamping of the four sides of the workpiece, ensuring the stability of the workpiece during the welding process and reducing the risk of displacement. In addition, the first spring 220 and the second spring 250 provide uniform clamping force to the first pressure block 210 and the second pressure block 240 respectively, which can adapt to small changes in the size of the workpiece and improve the inclusiveness of the fixture.

[0056] In some specific embodiments, the first fixture 120 and / or the second fixture 130 are provided with L-shaped blocks, and the two inner edges of the L-shaped blocks respectively form a first positioning part 200 and a second positioning part 230.

[0057] In some specific embodiments, the first fixture 120 and / or the second fixture 130 include a mounting bracket, a support base 190, a first positioning part 200 and a second positioning part 230 are disposed on the mounting bracket, and a first pressing block 210 and a second pressing block 240 are slidably connected to the mounting bracket.

[0058] Furthermore, the first pressure block 210 is provided with a first guide rod, the mounting bracket is provided with a first guide hole for accommodating the sliding of the first guide rod, the first spring 220 is fitted on the first guide rod, one end of the first spring 220 abuts against the first pressure block 210, and the other end of the first spring 220 abuts against the mounting bracket; the second pressure block 240 is provided with a second guide rod, the mounting bracket is provided with a second guide hole for accommodating the sliding of the second guide rod, the second spring 250 is fitted on the second guide rod, one end of the second spring 250 abuts against the second pressure block 240, and the other end of the second spring 250 abuts against the mounting bracket, thereby making the structure of the first pressure block 210, the first spring 220, the second pressure block 240 and the second spring 250 more stable.

[0059] In some specific embodiments, the bottom of the mounting bracket is provided with a mounting positioning hole, which is used for mounting and positioning with the turntable 110.

[0060] In some specific embodiments, the first fixture 120 and / or the second fixture 130 further include a first cylinder 260, which is used to push the first pressing block 210 away from the first positioning part 200 so that the first pressing block 210 disengages from the second side of the workpiece.

[0061] It is understandable that this embodiment achieves rapid release of the workpiece by setting the first cylinder 260 to drive the first pressure block 210 to release the workpiece, thereby reducing manual operation time.

[0062] Furthermore, the first fixture 120 and / or the second fixture 130 also include a transmission mechanism 270. The transmission mechanism 270 includes an abutment 280 and a first inclined surface 290. The first inclined surface 290 is inclined relative to the sliding direction of the first pressure block 210. The abutment 280 is disposed in one of the first pressure block 210 and the second pressure block 240, and the first inclined surface 290 is disposed in the other of the first pressure block 210 and the second pressure block 240. When the first cylinder 260 pushes the first pressure block 210 away from the first positioning part 200, the abutment 280 and the first inclined surface 290 abut against each other and slide to drive the second pressure block 240 away from the second positioning part 230.

[0063] It is understood that this embodiment, by setting a transmission mechanism 270, which includes an abutment member 280 and a first inclined surface 290, when the first cylinder 260 pushes the first pressing block 210 away from the first positioning part 200, the abutment member 280 and the first inclined surface 290 slide against each other. Utilizing the guiding effect of the first inclined surface 290, the second pressing block 240 can be driven away from the second positioning part 230, so that when the first cylinder 260 is activated, it simultaneously drives the first pressing block 210 and the second pressing block 240 to release, realizing the synchronous release of multiple pressing blocks, further shortening the workpiece loading and unloading time. In addition, the first pressing block 210 and the second pressing block 240 are linked through the transmission mechanism 270, reducing the number of cylinders, simplifying the fixture structure, and reducing the failure rate and manufacturing cost.

[0064] Specifically, the abutment 280 is disposed on the first pressing block 210, and the first inclined surface 290 is disposed on the second pressing block 240.

[0065] In some specific embodiments, the abutment 280 can be configured as a roller, so that the roller rolls into contact with the first inclined surface 290, thereby reducing the frictional resistance between the abutment 280 and the first inclined surface 290, making the transmission between the abutment 280 and the first inclined surface 290 more effortless.

[0066] In some specific embodiments, the first fixture 120 and / or the second fixture 130 are used to clamp the battery cell, the first positioning part 200 is used to position one long side of the battery cell, the first pressing block 210 is used to press the other long side of the battery cell, the second positioning part 230 is used to position the short side of the battery cell with tabs, and the second pressing block 240 is used to press the short side of the battery cell without tabs. The first fixture 120 and / or the second fixture 130 also include a positioning seat 300 and a pressing mechanism 310. The positioning seat 300 is disposed on one side of the second positioning part 230 and is used to support the positioning tabs. The pressing mechanism 310 is used to press the tabs.

[0067] It is understood that this embodiment, by setting up a positioning seat 300 and a clamping mechanism 310 specifically for the tabs, ensures the stability of the tab positioning during battery cell welding and improves the welding accuracy of the battery cell tabs. At the same time, the tab positioning and clamping avoids the deformation or displacement of the tabs during welding, ensuring the consistency of battery cell performance. In addition, the second positioning part 230 is used to position the short side of the battery cell with tabs, and the second clamping block 240 is used to clamp the short side of the battery cell without tabs. This can avoid the movement of the second clamping block 240 from interfering with the positioning seat 300 and the clamping mechanism 310, making the structural layout of the fixture more reasonable.

[0068] Furthermore, the clamping mechanism 310 includes a third clamping block 320, a second lifting module 330, and a first translation module 340. The second lifting module 330 is used to drive the third clamping block 320 to lift and lower to clamp and loosen the electrode tabs. The first translation module 340 is used to drive the third clamping block 320 to move horizontally so that the third clamping block 320 avoids the electrode tabs.

[0069] It is understood that this embodiment achieves precise clamping and avoidance of the electrode tab by setting the second lifting module 330 and the first translation module 340 to control the lifting and horizontal movement of the third pressure block 320 respectively, thereby avoiding interference and improving the operation accuracy. The first translation module 340 drives the third pressure block 320 to move horizontally, allowing the third pressure block 320 to avoid the electrode tab, which facilitates the loading and unloading of workpieces and meets the needs of high-speed production.

[0070] In some specific embodiments, the first translation component may include a first translation seat and a second cylinder that drives the first translation seat to translate, the second lifting module 330 may include a first lifting seat that is slidably disposed on the first translation seat and a third cylinder that drives the first lifting seat to lift, and a third pressure block 320 may be disposed on the first lifting seat.

[0071] In some specific embodiments, the nozzle of the welding protection device 180 can be set on the third pressure block 320, thereby facilitating the installation and fixing of the nozzle and enabling the nozzle to be aligned with the welding part of the workpiece below the third pressure block 320.

[0072] The pre-welding inspection device 140 is located upstream of the welding device 100 along the rotation direction of the turntable 110. The pre-welding inspection device 140 is used to detect the welding position of the workpiece before it enters the welding station, so as to correct the welding position of the welding device 100.

[0073] It is understood that in this embodiment, by setting a pre-welding inspection device 140 upstream of the welding device 100 along the rotation direction of the turntable 110 to detect the welding position of the workpiece and correct the welding position of the welding device 100, the accuracy of the welding position is ensured, the welding quality problems caused by workpiece positioning deviation or turntable 110 rotation position deviation due to loading and clamping are reduced, and the welding consistency and reliability are improved.

[0074] Specifically, the pre-welding inspection device 140 can be configured as a visual inspection camera, thereby enabling the pre-welding inspection device 140 to perform visual inspection on the workpiece, which in turn facilitates the detection of the position of the welded part of the workpiece.

[0075] The post-weld inspection device 150 is located downstream of the welding device 100 along the rotation direction of the turntable 110. The post-weld inspection device 150 is used to inspect the welding effect, weld quality and / or weld position of the workpiece after welding.

[0076] It is understood that this embodiment achieves closed-loop control of the welding process by setting a post-weld inspection device 150 downstream of the welding device 100 along the rotation direction of the turntable 110 to inspect the welding effect, weld quality and / or weld position. This enables timely detection of defective products and prevents them from flowing to subsequent processes. At the same time, online inspection avoids subsequent separate quality inspection, shortens the production cycle and reduces labor costs.

[0077] Specifically, the post-weld inspection device 150 can be configured as a visual inspection camera, thereby enabling the post-weld inspection device 150 to perform visual inspection on the workpiece, which in turn facilitates the inspection of the welding effect, weld quality and / or weld position of the workpiece.

[0078] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0080] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0081] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0082] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0083] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A welding device based on fixture type switching, characterized in that, include: Welding apparatus (100) for welding workpieces; A turntable (110) is rotatably disposed on one side of the welding device (100). A first fixture (120) and a second fixture (130) are disposed on the turntable (110). The first fixture (120) and the second fixture (130) are arranged circumferentially along the rotation axis of the turntable (110). The first fixture (120) and the second fixture (130) are respectively used to clamp different workpieces. The turntable (110) rotates to move the first fixture (120) or the second fixture (130) to the welding station of the welding device (100). A pre-welding inspection device (140) is located upstream of the welding device (100) along the rotation direction of the turntable (110) to detect the welding position of the workpiece before it enters the welding station, so as to correct the welding position of the welding device (100).

2. The welding equipment based on fixture type switching according to claim 1, characterized in that, The welding device (100) is provided with a post-weld inspection device (150) downstream of the rotation direction of the turntable (110). The post-weld inspection device (150) is used to inspect the welding effect, weld quality and / or weld position of the workpiece after welding.

3. The welding equipment based on fixture type switching according to claim 1, characterized in that, The welding device (100) includes a laser galvanometer (160) for laser welding of workpieces. The laser galvanometer (160) corrects the welding position based on the welding position of the workpiece detected by the pre-welding inspection device (140).

4. The welding equipment based on fixture type switching according to claim 3, characterized in that, The welding device (100) further includes a first lifting module (170), and the laser galvanometer (160) is disposed at the output end of the first lifting module (170). The first lifting module (170) is used to adjust the height of the laser galvanometer (160).

5. A welding device based on fixture type switching according to claim 1, characterized in that, The first fixture (120) and / or the second fixture (130) are provided with a welding protection device (180), which is used to blow protective gas onto the welding part of the workpiece on the first fixture (120) and / or the second fixture (130).

6. The welding equipment based on fixture type switching according to claim 1, characterized in that, The first fixture (120) and / or the second fixture (130) include: Support base (190) is used to support the workpiece; The first positioning part (200) is used to position the first side of the workpiece; The first pressing block (210) can approach and move away from the first positioning part (200) to press against the second side of the workpiece opposite to the first side; The first spring (220) is used to drive the first pressure block (210) closer to the first positioning part (200) to press the second side of the workpiece; The second positioning part (230) is used to position the third side of the workpiece; The second pressure block (240) can approach and move away from the second positioning part (230) to press against the fourth side of the workpiece opposite to the third side; The second spring (250) is used to drive the second pressure block (240) close to the second positioning part (230) to press the fourth side of the workpiece.

7. A welding device based on fixture type switching according to claim 6, characterized in that, The first fixture (120) and / or the second fixture (130) further include a first cylinder (260) for pushing the first pressure block (210) away from the first positioning part (200) so that the first pressure block (210) disengages from the second side of the workpiece.

8. A welding device based on fixture type switching according to claim 7, characterized in that, The first fixture (120) and / or the second fixture (130) further include a transmission mechanism (270), the transmission mechanism (270) including an abutment (280) and a first inclined surface (290), the first inclined surface (290) being inclined relative to the sliding direction of the first pressure block (210), the abutment (280) being disposed in one of the first pressure block (210) and the second pressure block (240), and the first inclined surface (290) being disposed in the other of the first pressure block (210) and the second pressure block (240), when the first cylinder (260) pushes the first pressure block (210) away from the first positioning part (200), the abutment (280) and the first inclined surface (290) abut against each other and slide to drive the second pressure block (240) away from the second positioning part (230).

9. A welding device based on fixture type switching according to claim 6, characterized in that, The first fixture (120) and / or the second fixture (130) are used to clamp the battery cell. The first positioning part (200) is used to position one long side of the battery cell. The first pressing block (210) is used to press the other long side of the battery cell. The second positioning part (230) is used to position the short side of the battery cell with tabs. The second pressing block (240) is used to press the short side of the battery cell without tabs. The first fixture (120) and / or the second fixture (130) also include a positioning seat (300) and a pressing mechanism (310). The positioning seat (300) is disposed on one side of the second positioning part (230). The positioning seat (300) is used to support the positioning tabs. The pressing mechanism (310) is used to press the tabs.

10. A welding device based on fixture type switching according to claim 9, characterized in that, The pressing mechanism (310) includes a third pressing block (320), a second lifting module (330), and a first translation module (340). The second lifting module (330) is used to drive the third pressing block (320) to rise and fall to press and release the electrode tabs. The first translation module (340) is used to drive the third pressing block (320) to move horizontally so that the third pressing block (320) avoids the electrode tabs.

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