Welding device

Abstract

The utility model relates to the technical field of battery processing equipment, and particularly discloses a welding device which comprises a workbench, a conveying mechanism, a positioning clamping jig, a camera assembly, a welding positioning mechanism and a cleaning mechanism. The workbench is provided with a laser welding mechanism used for welding a product. The conveying mechanism is mounted on the workbench; the positioning and clamping jig is connected with the conveying mechanism, the conveying mechanism can drive the positioning and clamping jig to move in the first direction, and the positioning and clamping jig is used for positioning and clamping a product; the camera assembly is arranged on the workbench, and the camera assembly is configured to obtain the position of a product; the welding positioning mechanism is arranged on the workbench, and the welding positioning mechanism is configured to position and fix a product in the first direction; the cleaning mechanism is arranged on the workbench and used for cleaning the welding positioning mechanism. According to the utility model, the phenomena such as offset welding, weld penetration, insufficient welding and explosive welding during welding can be avoided, and the yield of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery processing equipment technical field, in particular to a kind of welding devices. BACKGROUND

[0002] To prevent the battery cell from being electrochemically damaged due to external factors during charging and discharging, the battery cell and the mobile phone need to be connected through a PCM board. After the PCM board is welded with the positive and negative poles of the battery cell, the battery cell is then installed into the mobile phone, and the connectors on the PCM and the connectors of the mobile phone are connected.

[0003] In existing welding equipment, there is usually only one welding machine and one set of fixed welding positioning mechanism. After the product is transported to the welding station, the welding positioning mechanism positions and fixes the PCM and the tab of the battery cell, and then the welding machine is used for welding. However, the positioning of the PCM and the tab of the battery cell by the set of fixed welding positioning mechanism can easily cause phenomena such as miswelding, false welding and explosive welding during welding of the PCM. In addition, there is usually welding slag on the welding pressure jaw of the welding positioning mechanism during the welding process. The presence of welding slag can also cause phenomena such as false welding, welding through and explosive welding, which ultimately leads to an increase in the product failure rate. SUMMARY

[0004] The technical problem to be solved by the utility model is how to solve the problem of high product failure rate in the prior art.

[0005] To solve the above technical problems, the utility model provides a welding device with first, second and third directions intersecting with each other, comprising:

[0006] a workbench;

[0007] a conveying mechanism installed on the workbench;

[0008] a positioning and clamping jig connected to the conveying mechanism, and the conveying mechanism can drive the positioning and clamping jig to move along the first direction, and the positioning and clamping jig is used for positioning and clamping the product;

[0009] a laser welding mechanism installed on the workbench and used for welding the product;

[0010] a camera assembly provided on the workbench, and the camera assembly is configured to obtain the position of the product;

[0011] a welding positioning mechanism provided on the workbench, and the welding positioning mechanism is configured to position and fix the product in the first direction according to the position information of the product obtained by the camera assembly; and

[0012] A cleaning mechanism is arranged on the workbench and used for cleaning the welding positioning mechanism.

[0013] Further preferably, the camera assembly comprises:

[0014] A first base connected with the workbench;

[0015] A first support frame arranged on the first base; and

[0016] A camera body arranged on the first support frame, and an optical path of the camera body extends along the third direction.

[0017] Further preferably, the camera assembly further comprises:

[0018] A light source arranged on the first support frame, and the light source is used for supplementing the luminosity of the product.

[0019] Further preferably, the light source is a coaxial light source, and the light source is coaxially arranged with the camera body along the third direction.

[0020] Further preferably, the camera assembly further comprises:

[0021] A light-reflecting plate arranged on the first support frame, and the light-reflecting plate is oppositely arranged with the camera body along the third direction.

[0022] Further preferably, the camera assembly further comprises:

[0023] A camera mount connected with the first support frame, and the camera body is detachably connected with the camera mount.

[0024] Further preferably, the camera mount is slidingly connected with the first support frame.

[0025] The camera assembly further comprises:

[0026] A focal length adjusting member arranged on the first support frame and connected with the camera mount, and the focal length adjusting member is capable of driving the camera mount to move along the third direction.

[0027] Further preferably, the welding positioning mechanism comprises:

[0028] A second base connected with the workbench;

[0029] A servo driving assembly arranged on the second base; and

[0030] At least one positioning module connected with the servo driving assembly, and the servo driving assembly is capable of driving the positioning module to move along the first direction, and the positioning module is used for positioning and fixing the product.

[0031] Further preferably, the servo driving assembly comprises:

[0032] A lead screw extending along the first direction and rotatably connected with the second base;

[0033] A sliding block movably mounted on the lead screw along the first direction, and the sliding block is fixedly connected with the positioning module; and

[0034] A servo motor fixedly connected with the second base, and an output end of the servo motor is connected with the lead screw.

[0035] Further preferably, the servo driving assembly further comprises:

[0036] A driving wheel connected with the output end of the servo motor;

[0037] A driven wheel coaxially connected with the lead screw; and

[0038] A synchronous belt connecting the driving wheel and the driven wheel.

[0039] Further preferably, the servo driving assembly further comprises:

[0040] At least one guide rail provided on the second base and extending along the first direction, and the positioning module is slidably connected with the guide rail.

[0041] Further preferably, each of the positioning modules comprises:

[0042] A movable support connected with the servo driving assembly;

[0043] A second support frame provided on the movable support;

[0044] A first cylinder connected with the second support frame; and

[0045] A welding pressure jaw provided on a piston end of the first cylinder and used for pressing the product in the third direction.

[0046] Further preferably, the positioning module further comprises:

[0047] A third support frame connected with the movable support;

[0048] a second cylinder connected with the third support frame; and

[0049] a lower welding support arranged at a piston end of the second cylinder for supporting the product in the third direction.

[0050] Further preferably, the positioning module further comprises:

[0051] a sensing sheet arranged at a side end of the movable support; and

[0052] a sensing element arranged at the second base, and the sensing element is arranged in correspondence with the sensing sheet in the first direction.

[0053] Further preferably, the cleaning mechanism comprises:

[0054] a third base connected with the workbench;

[0055] a power assembly installed on the third base; and

[0056] a cleaning brush connected with the power assembly for cleaning the welding positioning mechanism.

[0057] Further preferably, the power assembly comprises:

[0058] a third cylinder arranged at the third base, a piston end of the third cylinder is provided with a first connecting piece, and the third cylinder is capable of driving the first connecting piece to move in the second direction; and

[0059] a fourth cylinder connected with the first connecting piece, a piston end of the fourth cylinder is provided with a second connecting piece, the cleaning brush is connected with the second connecting piece, and the fourth cylinder is capable of driving the second connecting piece to move in the first direction.

[0060] Further preferably, the welding pressure jaw is provided with a slag suction hole, and the slag suction hole is connected with a slag suction pipe;

[0061] The welding device further comprises a dust extraction mechanism, and the slag suction pipe is in communication with the dust extraction mechanism.

[0062] Further preferably, the dust extraction mechanism comprises:

[0063] a dust collection box;

[0064] a negative pressure vacuum generator in communication with the dust collection box; and

[0065] A joint for communicating with the suction pipe.

[0066] Further preferably, the dust extraction mechanism further comprises:

[0067] A suction nozzle provided with a connecting pipe between the suction nozzle and the negative pressure vacuum generator, and an opening of the suction nozzle is arranged corresponding to the welding pressure jaw.

[0068] Compared with the prior art, the welding device has the beneficial effects that:

[0069] The positioning and clamping jig is used for clamping products, the conveying mechanism can convey the products to a shooting station, the camera assembly takes pictures of the products to obtain the positions of the products, the conveying mechanism then conveys the products to a welding station, the welding positioning mechanism positions and fixes the products in the first direction according to the product position information obtained by the camera assembly, so that accurate positioning of the products is realized, and phenomena such as miswelding, false welding and explosive welding are avoided; after positioning, the laser welding mechanism welds the products, and after welding, the cleaning mechanism cleans the welding positioning mechanism, so that abnormal conditions such as false welding, welding through and explosive welding caused by welding slag are avoided, and the yield of the products is improved. BRIEF DESCRIPTION OF DRAWINGS

[0070] Figure 1 is a structural schematic view of the welding device.

[0071] Figure 2 is a structural schematic view of the camera assembly.

[0072] Figure 3 is a structural schematic view of the welding positioning mechanism.

[0073] Figure 4 is a structural schematic view of the welding positioning mechanism from another perspective.

[0074] Figure 5 is a structural schematic view of the welding positioning mechanism. Figure 3 is an enlarged schematic view of A in the welding positioning mechanism.

[0075] Figure 6 is a structural schematic view of the cleaning mechanism.

[0076] Figure 7 is a structural schematic view of the dust extraction mechanism.

[0077] In the drawings:

[0078] 10, workbench;

[0079] 20, conveying mechanism;

[0080] 30, positioning clamping fixture;

[0081] 40, laser welding mechanism;

[0082] 50, camera assembly; 51, first base; 52, first support frame; 53, light source; 54, camera mounting seat; 55, camera body; 56, focal length adjusting piece; 57, reflector plate;

[0083] 60, welding positioning mechanism; 61, second base; 62, servo drive assembly; 621, screw rod; 622, sliding block; 623, servo motor; 624, guide rail; 625, driving wheel; 626, driven wheel; 627, synchronous belt; 63, positioning module; 631, movable support; 632, second support frame; 633, first air cylinder; 634, welding pressure jaw; 634a, slag suction hole; 634b, slag suction pipe; 635, third support frame; 636, second air cylinder; 637, welding lower support; 638, inductive sheet; 639, inductive element;

[0084] 70, cleaning mechanism; 71, third base; 72, power assembly; 721, third air cylinder; 722, first connecting piece; 723, fourth air cylinder; 724, second connecting piece; 73, cleaning brush;

[0085] 80, dust extraction mechanism; 81, dust collection box; 82, negative pressure vacuum generator; 83, joint; 84, connecting pipe; 85, dust suction nozzle. DETAILED DESCRIPTION

[0086] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0087] 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" and the like in the present application are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as limiting the present application.

[0088] The terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or an ordering of the elements. Thus, a feature defined with "first", "second", etc. can include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless explicitly specified and limited otherwise.

[0089] In addition, unless explicitly specified and limited otherwise, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0090] In the present application, unless explicitly specified and limited otherwise, the "upper" or "lower" of the first feature to the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the "over", "above" and "on" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0091] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0092] As shown in Figure 1 The present embodiment provides a welding device having a first direction X, a second direction Y and a third direction Z intersecting with each other.

[0093] In some embodiments, the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0094] In some embodiments, the welding device comprises a workbench 10, a conveying mechanism 20 and a positioning and clamping jig 30, wherein the workbench 10 is provided with a laser welding mechanism 40 for welding products, the conveying mechanism 20 is installed on the workbench 10 for conveying the products, and the positioning and clamping jig 30 is connected with the conveying mechanism 20 and can be driven by the conveying mechanism 20 to move along a first direction X, wherein the positioning and clamping jig 30 is used for positioning and clamping the products.

[0095] In some embodiments, in order to avoid the abnormal phenomena such as miswelding, welding through, false welding and explosive welding, the welding device further comprises a camera assembly 50, a welding positioning mechanism 60 and a cleaning mechanism 70. Specifically, the camera assembly 50 is arranged on the workbench 10 and is configured to obtain the position of the products; the welding positioning mechanism 60 is arranged on the workbench 10 and is configured to position and fix the products in the first direction X according to the position information of the products obtained by the camera assembly 50; and the cleaning mechanism 70 is arranged on the workbench 10 and is used for cleaning the welding positioning mechanism 60. In this way, the positioning and clamping jig 30 is used for clamping the products, the conveying mechanism 20 can convey the products to a shooting station, the camera assembly 50 takes a photo of the products to obtain the position of the products, the conveying mechanism 20 then conveys the products to a welding station, and the welding positioning mechanism 60 positions and fixes the products in the first direction according to the position information of the products obtained by the camera assembly 50, so as to realize accurate positioning of the products and avoid phenomena such as miswelding, false welding and explosive welding. After positioning, the laser welding mechanism 40 welds the products, and after welding, the cleaning mechanism 70 cleans the welding positioning mechanism 60, so as to avoid abnormal conditions such as false welding, welding through and explosive welding caused by welding slag and improve the yield of the products.

[0096] In some embodiments, as shown in Figure 2 The camera assembly 50 comprises a first base 51, a first support frame 52 and a camera body 55, wherein the first base 51 is connected with the workbench 10, the first support frame 52 is arranged on the first base 51, and the camera body 55 is arranged on the first support frame 52 and the optical path of the camera body 55 extends along a third direction Z. By arranging the camera body 55, when the conveying mechanism 20 can convey the products to the shooting station, the camera body 55 can take a photo of the products on the positioning and clamping jig 30 to obtain the position of the products. Taking the welding of the PCM plate and the cell tab as an example, the purpose of the camera body 55 is to obtain the position of the PCM and the cell tab, so as to facilitate the accurate positioning and fixing of the products by the welding positioning mechanism 60, improve the welding quality of the products and reduce the product failure rate.

[0097] In some embodiments, in order to ensure the shooting effect of the camera body 55, the camera assembly 50 further comprises a light source 53, which is arranged on the first support frame 52 and is used to supplement the light intensity of the product to provide sufficient illumination and improve the accuracy of obtaining the position of the product.

[0098] In some embodiments, in order to further enhance the shooting effect, the light source 53 is a coaxial light source, and the light source 53 is coaxially arranged with the camera body 55 in the third direction Z. The coaxial light source can enhance the detection of the surface details and textures of the object, reduce shadows, and make the surface details and textures of the object more clearly visible, thereby enhancing the shooting effect.

[0099] In some embodiments, in order to further enhance the shooting effect, the camera assembly 50 further comprises a reflecting plate 57, which is arranged on the first support frame 52 and is oppositely arranged with the camera body 55 in the third direction Z. The reflecting plate 57 can reflect the light emitted by the light source 53 to the product, thereby improving the light environment of the product.

[0100] In other embodiments, the reflecting plate 57 is preferably a white POM reflecting plate. The light reflected by the white POM reflecting plate is the most soft and natural, which can make the light more uniform and further enhance the shooting effect.

[0101] In some embodiments, in order to facilitate the disassembly of the camera assembly 50, the camera assembly 50 further comprises a camera mounting seat 54, which is connected with the first support frame 52 and is detachably connected with the camera body 55. In this way, it is convenient for cleaning, maintenance or replacement of the camera body 55, and the accuracy of obtaining the position of the product by the camera body 55 is ensured.

[0102] In some embodiments, the camera mounting seat 54 is slidably connected with the first support frame 52; the camera assembly 50 further comprises a focal length adjusting member 56, which is arranged on the first support frame 52 and is connected with the camera mounting seat 54. The focal length adjusting member 56 can drive the camera mounting seat 54 to move in the third direction Z. The relative distance between the camera body 55 and the product in the third direction Z can be adjusted by the focal length adjusting member 56, so as to realize the focusing of the camera body 55 and ensure the accuracy of obtaining the position of the product by the camera body 55.

[0103] In some embodiments, as shown in Figure 3 and Figure 4 The welding positioning mechanism 60 comprises a second base 61, a servo driving assembly 62 and at least one set of positioning module 63. Taking the welding of the PCM plate and the electrode lug of the battery cell as an example, since the PCM plate needs to be welded with the positive and negative electrodes of the battery cell, the positioning module 63 is preferably two sets.

[0104] In the above implementation, the second base 61 is connected with the workbench 10; the servo driving assembly 62 is arranged on the second base 61; the positioning module 63 is connected with the servo driving assembly 62, and the servo driving assembly 62 can drive the positioning module 63 to move along the first direction X, and the positioning module 63 is used for positioning and fixing the product; based on this, by arranging the servo driving assembly 62 to drive the positioning module 63 to move along the first direction X, the positioning module 63 can accurately clamp the PCM plate and the electrode lug of the battery cell, so as to ensure the subsequent welding quality and avoid abnormal conditions such as virtual welding, welding through and explosion welding.

[0105] In some implementations, the servo driving assembly 62 includes a screw rod 621, a sliding block 622 and a servo motor 623, wherein the screw rod 621 extends along the first direction X and is rotationally connected to the second base 61; the sliding block 622 is movably installed on the screw rod 621 along the first direction X, and the sliding block 622 is fixedly connected with the positioning module 63; the servo motor 623 is fixed to the second base 61, and the output end of the servo motor 623 is connected with the screw rod 621; when the servo motor 623 drives the screw rod 621 to rotate, the rotary pair of the sliding block 622 is restricted because the sliding block 622 is fixedly connected with the positioning module 63, so the sliding block 622 can only move along the first direction X under the action of the screw rod 621, thereby realizing the position adjustment of the positioning module 63 in the first direction X, so that the positioning module 63 can accurately clamp the PCM plate and the electrode lug of the battery cell to ensure the subsequent welding quality.

[0106] In some implementations, since the PCM plate needs to be welded with the positive and negative poles of the battery cell, the servo driving assembly 62 is two groups, and each group controls a set of positioning modules 63 to realize the positioning and fixing of the PCM plate and the positive pole of the battery cell, and the positioning and fixing of the PCM plate and the negative pole of the battery cell.

[0107] In some implementations, the servo driving assembly 62 further includes a driving wheel 625 and a driven wheel 626, the driving wheel 625 is connected with the output end of the servo motor 623; the driven wheel 626 is coaxially connected with the screw rod 621; a synchronous belt 627 connects the driving wheel 625 and the driven wheel 626, specifically, the synchronous belt 627 is wound around the driving wheel 625 and the driven wheel 626, the power of the servo motor 623 is output through the driving wheel 625, and the synchronous belt 627 drives the driven wheel 626 to rotate, and in turn drives the driven wheel 626 and the screw rod 621 to rotate synchronously, because the sliding block 622 is fixedly connected with the positioning module 63, so the movement of the sliding block 622 in the first direction X is realized, so that the positioning module 63 can accurately position and fix the product in the first direction X according to the position information of the product obtained by the camera assembly 50.

[0108] In some embodiments, in order to ensure the stability and balance of the positioning module 63 moving in the first direction X, the servo driving assembly 62 further comprises at least one guide rail 624 arranged on the second base 61 and extending along the first direction X, and the positioning module 63 is slidably connected with the guide rail 624.

[0109] In other embodiments, the guide rail 624 is arranged on opposite sides of the second base 61 along the second direction Y, so that the second base 61 is more stable during movement in the first direction X.

[0110] In some embodiments, each set of positioning module 63 comprises a movable support 631 slidably connected with the guide rail 624, and the movable support 631 is fixedly connected with the sliding block 622; the movable support 631 is provided with a second support frame 632, and the first cylinder 633 is mounted on the second support frame 632, and the piston end of the first cylinder 633 is provided with a welding pressure jaw 634, and the first cylinder 633 is used to drive the welding pressure jaw 634 to press the product in the third direction Z.

[0111] At the same time, in order to avoid the deformation or even damage of the electrode tab or PCM plate of the battery cell caused by the welding pressure jaw 634 during pressing, in some embodiments, the positioning module 63 further comprises a third support frame 635 connected with the movable support 631; the third support frame 635 is provided with a second cylinder 636, and the piston end of the second cylinder 636 is provided with a welding lower support 637, and the second cylinder 636 is used to drive the welding lower support 637 to support the product in the third direction Z.

[0112] That is, the relatively arranged welding pressure jaw 634 and welding lower support 637 can ensure the positioning and clamping of the PCM plate and the electrode tab of the battery cell, and also ensure the welding quality during welding.

[0113] In some embodiments, in order to improve the movement precision of the positioning module 63 in the first direction X, the positioning module 63 further comprises a sensing sheet 638 and a sensing element 639; the sensing sheet 638 is arranged at the side end of the movable support 631; the sensing element 639 is arranged on the second base 61, and the sensing element 639 is arranged corresponding to the sensing sheet 638 in the first direction X; the sensing sheet 638 and the sensing element 639 can improve the precision and accuracy of the movable support 631 moving in the first direction X, thereby improving the welding quality and reducing the product failure rate.

[0114] In some embodiments, as shown in FIG. 6, the welding device 60 further comprises a first base 61 and a second base 62, and the first base 61 and the second base 62 are arranged in parallel along the first direction X. Figure 5As shown, the cleaning mechanism 70 comprises a third base 71, a power assembly 72 and a cleaning brush 73; the third base 71 is connected with the workbench 10; the power assembly 72 is installed on the third base 71; the cleaning brush 73 is connected with the power assembly 72 and used for cleaning the welding positioning mechanism 60; that is, after welding, the cleaning brush 73 is driven by the power assembly 72 to clean the welding pressure jaw 634, so as to avoid abnormal conditions such as virtual welding, welding through and explosion welding caused by residual welding slag of the welding pressure jaw 634, and improve the yield of products.

[0115] In some embodiments, the power assembly 72 comprises a third cylinder 721 and a fourth cylinder 723; the third cylinder 721 is arranged on the third base 71, and a first connecting piece 722 is arranged at the piston end of the third cylinder 721; the third cylinder 721 can drive the first connecting piece 722 to move along the second direction Y; the fourth cylinder 723 is connected with the first connecting piece 722, a second connecting piece 724 is arranged at the piston end of the fourth cylinder 723, and the cleaning brush 73 is connected with the second connecting piece 724; the fourth cylinder 723 can drive the second connecting piece 724 to move along the first direction X; that is, the cleaning brush 73 can be driven by the third cylinder 721 and the fourth cylinder 723 to clean the welding pressure jaw 634 in the plane where the first direction X and the second direction Y are located, so as to effectively improve the cleaning effect of the cleaning brush 73 on the welding pressure jaw 634.

[0116] In some embodiments, since there is welding slag after the cleaning brush 73 cleans the welding pressure jaw 634, in order to avoid the influence of residual or falling welding slag on the normal use of other components, as shown in Figure 4 and Figure 6 the welding pressure jaw 634 is provided with a slag suction hole 634a, and a slag suction pipe 634b is connected with the slag suction hole 634a; the welding device further comprises a dust extraction mechanism 80, and the slag suction pipe 634b is communicated with the dust extraction mechanism 80; that is, the dust extraction mechanism 80 can timely suck away the welding slag scraped off by the cleaning brush 73, so as to ensure the cleanliness of the welding pressure jaw 634 and avoid the falling of welding slag to other positions.

[0117] In some embodiments, the dust extraction mechanism 80 comprises a dust collection box 81, a negative pressure vacuum generator 82 and a joint 83; the negative pressure vacuum generator 82 is communicated with the dust collection box 81; the joint 83 is communicated with the negative pressure vacuum generator 82, and the joint 83 is used for being communicated with the slag suction pipe 634b; in the process of cleaning the welding pressure jaw 634 by the cleaning brush 73, the negative pressure vacuum generator 82 can form negative pressure at the slag suction hole 634a, so that the falling welding slag can enter the slag suction hole 634a under the action of the negative pressure and then be collected to the dust collection box 81.

[0118] In some embodiments, due to the presence of smoke dust in the welding process, the dust extraction mechanism 80 further comprises a dust suction nozzle 85, which is provided with a connecting pipe 84 between the negative pressure vacuum generator 82 and the opening of the dust suction nozzle 85 is arranged corresponding to the welding pressure jaw 634; By setting the dust suction nozzle 85, the influence of smoke on the workshop during welding can be reduced.

[0119] In other embodiments, the dust suction nozzle 85 is in a conical structure, such as a horn or a funnel, so that the opening of the dust suction nozzle 85 can cover a larger area, thereby improving the adsorption capacity of the smoke during the welding process.

[0120] The working process of the utility model is: please combine Figures 1 to 7 , the product is taken as an example of welding PCM board and battery core tab. First, place the PCM board and battery core tab in the positioning and clamping jig 30, and then transport it to the shooting station by the conveying mechanism 20. The camera body 55 takes a photo of the position of the PCM board and battery core tab, obtains the position of the PCM board and battery core tab, and then transports the PCM board and battery core tab to the welding station. According to the position information of the PCM board and battery core tab obtained by the camera body 55, the power of the servo motor 623 is output through the driving wheel 625, and the driven wheel 626 is driven to rotate through the synchronous belt 627, thereby driving the driven wheel 626 and the lead screw 621 to rotate synchronously. Since the sliding block 622 is fixedly connected with the positioning module 63, the movement of the sliding block 622 in the first direction X is realized. At the same time, the first cylinder 633 is used to drive the welding pressure jaw 634 to press the product in the third direction Z, and the piston end of the second cylinder 636 is provided with a welding lower support 637. The second cylinder 636 is used to drive the welding lower support 637 to support the product in the third direction Z. That is, the relative arrangement of the welding pressure jaw 634 and the welding lower support 637 can ensure the positioning and clamping of the PCM board and the battery core tab. After positioning and clamping, the laser welding mechanism 40 welds the PCM board and the battery core tab;

[0121] Under the action of the negative pressure vacuum generator 82, the smoke generated during the welding process is sucked away by the dust suction nozzle 85;

[0122] After the welding is completed, the PCM board and the battery core tab are sent out by the conveying mechanism 20 along with the positioning and clamping jig 30. The third cylinder 721 and the fourth cylinder 723 can drive the cleaning brush 73 to clean the welding pressure jaw 634 in the plane of the first direction X and the second direction Y, so as to avoid the occurrence of abnormal conditions such as virtual welding, welding through and explosion welding due to the presence of welding slag in the welding pressure jaw 634 in the next welding process. The welding slag scraped off by the cleaning brush 73 can be sucked away in time by setting the dust extraction mechanism 80, so as to ensure the cleanliness of the welding pressure jaw 634.

[0123] In conclusion, the welding device provided by the utility model can acquire the position of the product through the camera assembly 50, so as to realize accurate positioning of the subsequent welding positioning mechanism 60, avoid phenomena such as offset welding, virtual welding and explosive welding, and after positioning, the product is welded by the laser welding mechanism 40, and after welding, the welding positioning mechanism 60 is cleaned by the cleaning mechanism 70, so as to avoid abnormal conditions such as virtual welding, welding through and explosive welding caused by welding slag, and improve the yield of the product.

[0124] The above only describes the preferred embodiments of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, several improvements and replacements can be made without departing from the technical principles of the utility model, and these improvements and replacements should also be regarded as the protection range of the utility model.

[0125] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and the skilled person should regard the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that the skilled person can understand.

[0125] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and the skilled person should regard the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that the skilled person can understand.

Claims

1. A welding device having a first direction (X), a second direction (Y) and a third direction (Z) intersecting two by two, characterized in that, The utility model relates to a laser welding device for product, which comprises: a workbench (10); a conveying mechanism (20) installed on the workbench (10); a positioning and clamping jig (30) connected with the conveying mechanism (20) and capable of being driven by the conveying mechanism (20) to move along the first direction (X), the positioning and clamping jig (30) being used for positioning and clamping a product; a laser welding mechanism (40) installed on the workbench (10) and used for welding the product; a camera assembly (50) arranged on the workbench (10) and configured to acquire the position of the product; a welding positioning mechanism (60) arranged on the workbench (10) and configured to position and fix the product in the first direction (X) according to the position information of the product acquired by the camera assembly (50); and a cleaning mechanism (70) arranged on the workbench (10) and used for cleaning the welding positioning mechanism (60).

2. A welding device according to claim 1, characterised in that The camera assembly (50) comprises: a first base (51) connected with the workbench (10); a first support frame (52) arranged on the first base (51); and a camera body (55) arranged on the first support frame (52) and having an optical path extending along the third direction (Z).

3. A welding device according to claim 2, wherein The camera assembly (50) further comprises: a light source (53) arranged on the first support frame (52) and used for supplementing the luminosity of the product.

4. A welding device according to claim 3, wherein The light source (53) is a coaxial light source and is coaxially arranged with the camera body (55) in the third direction (Z).

5. The welding device of claim 2, wherein The camera assembly (50) further comprises: a light-reflecting plate (57) arranged on the first support frame (52) and oppositely arranged with the camera body (55) in the third direction (Z).

6. A welding device as defined in claim 2, wherein The camera assembly (50) further comprises: a camera mounting seat (54) connected with the first support frame (52), the camera body (55) being detachably connected with the camera mounting seat (54).

7. A welding device according to claim 6, wherein The camera mounting seat (54) is slidably connected with the first support frame (52). The camera assembly (50) further comprises: a focal length adjusting member (56) arranged on the first support frame (52) and connected with the camera mounting seat (54), the focal length adjusting member (56) being capable of driving the camera mounting seat (54) to move along the third direction (Z).

8. The welding device of claim 1, wherein, The welding positioning mechanism (60) comprises: a second base (61) connected with the workbench (10); a second support frame (62) arranged on the second base (61); a positioning and clamping mechanism (63) arranged on the second support frame (62) and capable of being driven by the second base (61) to move along the first direction (X), the positioning and clamping mechanism (63) being used for positioning and clamping a product; a welding mechanism (64) arranged on the second support frame (62) and used for welding the product; a cleaning mechanism (65) arranged on the second support frame (62) and used for cleaning the welding mechanism (64). A servo driving assembly (62) is arranged on the second base (61); and At least one set of positioning modules (63) is connected with the servo driving assembly (62), and the servo driving assembly (62) can drive the positioning modules (63) to move along the first direction (X), and the positioning modules (63) are used for positioning and fixing products.

9. A welding device according to claim 8, wherein The servo driving assembly (62) comprises: A lead screw (621) extending along the first direction (X) and rotatably connected with the second base (61); A sliding block (622) movably mounted on the lead screw (621) along the first direction (X), and the sliding block (622) is fixedly connected with the positioning modules (63); and A servo motor (623) fixedly connected with the second base (61), and an output end of the servo motor (623) is connected with the lead screw (621).

10. A welding device according to claim 9, wherein The servo driving assembly (62) further comprises: A driving wheel (625) connected with the output end of the servo motor (623); A driven wheel (626) coaxially connected with the lead screw (621); and A synchronous belt (627) connecting the driving wheel (625) and the driven wheel (626).

11. The welding device of claim 8, wherein, The servo driving assembly (62) further comprises: At least one guide rail (624) arranged on the second base (61) and extending along the first direction (X), and the positioning modules (63) are slidably connected with the guide rail (624).

12. The welding device of claim 8, wherein, Each set of the positioning modules (63) comprises: A movable support (631) connected with the servo driving assembly (62); A second support frame (632) arranged on the movable support (631); A first cylinder (633) connected with the second support frame (632); and A welding pressure jaw (634) arranged on a piston end of the first cylinder (633) and used for pressing the product in the third direction (Z).

13. A welding device according to claim 12, wherein The positioning modules (63) further comprise: A third support frame (635) connected with the movable support (631); A second cylinder (636) connected with the third support frame (635); and A welding lower support (637) arranged on a piston end of the second cylinder (636) and used for supporting the product in the third direction (Z).

14. The welding device of claim 12, wherein, The positioning modules (63) further comprise: An inductive sheet (638) arranged on a side end of the movable support (631); and An inductive sheet (638) arranged on a side end of the movable support (631); and An inductive element (639) is arranged on the second base (61), and the inductive element (639) is arranged in correspondence with the inductive sheet (638) in the first direction (X).

15. The welding device of claim 1, wherein, The cleaning mechanism (70) comprises: A third base (71) connected with the workbench (10); A power assembly (72) mounted on the third base (71); and A cleaning brush (73) connected with the power assembly (72) for cleaning the welding positioning mechanism (60).

16. A welding device according to claim 15, wherein The power assembly (72) comprises: A third cylinder (721) arranged on the third base (71), a first connecting piece (722) arranged on the piston end of the third cylinder (721), and the third cylinder (721) being capable of driving the first connecting piece (722) to move in the second direction (Y); and A fourth cylinder (723) connected with the first connecting piece (722), a second connecting piece (724) arranged on the piston end of the fourth cylinder (723), the cleaning brush (73) being connected with the second connecting piece (724), and the fourth cylinder (723) being capable of driving the second connecting piece (724) to move in the first direction (X).

17. The welding device of claim 12, wherein, The welding pressure jaw (634) is provided with a slag suction hole (634a), and the slag suction hole (634a) is connected with a slag suction pipe (634b); The welding device further comprises a dust extraction mechanism (80), and the slag suction pipe (634b) is in communication with the dust extraction mechanism (80).

18. A welding device according to claim 17, wherein, The dust extraction mechanism (80) comprises: A dust collection box (81); A negative pressure vacuum generator (82) in communication with the dust collection box (81); and A joint (83) in communication with the negative pressure vacuum generator (82), and the joint (83) being used for communicating with the slag suction pipe (634b).

19. A welding device according to claim 18, wherein The dust extraction mechanism (80) further comprises: A dust suction nozzle (85), a connecting pipe (84) arranged between the dust suction nozzle (85) and the negative pressure vacuum generator (82), and an opening of the dust suction nozzle (85) being arranged in correspondence with the welding pressure jaw (634). The dust extraction mechanism (80) further comprises: A dust suction nozzle (85), a connecting pipe (84) arranged between the dust suction nozzle (85) and the negative pressure vacuum generator (82), and an opening of the dust suction nozzle (85) being arranged in correspondence with the welding pressure jaw (634).

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