Welding equipment

Abstract

The present invention discloses a welding device, which includes a feeding device, a conveying device, a jig and a welding device. The feeding device and the welding device are sequentially arranged on the conveying path of the conveying device. The conveying device is connected to the jig. The feeding device is used for feeding products. The jig receives the fed products and positions the parts to be welded in the products respectively. The conveying device conveys the positioned jig through the welding device, and the welding device welds the parts to be welded of the products. The present application positions the parts to be welded of the products fed by the feeding device respectively by the jig, so that the welding device can accurately weld the welding parts of the parts to be welded of the products, thereby ensuring the accuracy of the welding position of the products, thereby ensuring the welding quality of the products and the final quality of the finished products.

Description

Technical Field

[0001] The present invention relates to the technical field of production equipment, and in particular to welding equipment. Background Art

[0002] Welding equipment is a kind of equipment commonly used in the production process of products. Welding equipment is used to weld two parts of a product together, for example, the welding between the battery shell and the end cover. During welding, the accuracy of the welding position of the two parts to be welded will directly affect the welding quality of the product, and then affect the quality of the final product. However, welding equipment in the prior art often cannot guarantee the accuracy of the welding position of the two parts to be welded in the product, which in turn affects the welding quality of the product and the quality of the final product. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a welding device.

[0004] A welding device disclosed in the present invention comprises a feeding device, a conveying device, a jig and a welding device; the feeding device and the welding device are sequentially arranged on a conveying path of the conveying device, and the conveying device is connected to the jig; the feeding device is used for feeding products, the jig receives the fed products and positions the parts to be welded in the products respectively, the conveying device conveys the positioned jig through the welding device; the welding device welds the parts to be welded of the products.

[0005] According to one embodiment of the present invention, it also includes a dust removal device; the dust removal device is arranged on the conveying path of the conveying device; the dust removal device is used for dust removal of the parts to be welded in the product before welding.

[0006] According to one embodiment of the present invention, it also includes a detection device; the detection device is arranged on the conveying path of the conveying device; the detection device is used to detect the height difference between the components to be welded in the product.

[0007] According to one embodiment of the present invention, it also includes a material unloading device; the material unloading device is arranged on the conveying path of the conveying device; the material unloading device is used for unloading the product after welding is completed.

[0008] According to one embodiment of the present invention, the loading device includes an incoming material mechanism and an incoming material transfer mechanism; the incoming material mechanism is located on one side of the starting end of the conveying device, and the incoming material transfer mechanism is located on one side of the incoming material mechanism close to the starting end of the conveying device; the incoming material mechanism is used for incoming materials of products, and the incoming material transfer mechanism is used to transfer the incoming products to the jig.

[0009] According to one embodiment of the present invention, the conveying device includes a conveying frame and a conveying drive mechanism; the jig is slidably connected to the conveying frame; the output end of the conveying drive mechanism is connected to the jig, which drives the jig to move linearly.

[0010] According to one embodiment of the present invention, the jig includes a load-bearing portion, an upper positioning portion and a side positioning portion; the upper positioning portion is located above the load-bearing portion, and the side positioning portion is located on the side of the load-bearing portion; the load-bearing portion is used to carry the product, the upper positioning portion is used to perform upper positioning and upper positioning on the parts to be welded in the product, and the side positioning portion performs side limiting and side positioning on the parts to be welded in the product.

[0011] According to one embodiment of the present invention, the welding device includes a welding drive mechanism and a welding mechanism; the output end of the welding drive mechanism is connected to the welding mechanism, which drives the welding mechanism to approach or move away from the product, and the welding mechanism welds the parts to be welded in the product.

[0012] According to one embodiment of the present invention, a detection device includes a detection drive mechanism and a detection mechanism; the driving end of the detection drive mechanism is connected to the detection mechanism, which drives the detection mechanism to approach or move away from the product carried by the fixture, and the detection mechanism detects the height difference between the parts to be welded in the product.

[0013] According to one embodiment of the present invention, the unloading device includes a unloading mechanism and a unloading transfer mechanism; the unloading mechanism is located on one side of the end of the conveying device, and the unloading transfer mechanism is arranged on one side of the unloading mechanism close to the end of the conveying device; the unloading transfer mechanism transfers the welded products to the unloading mechanism.

[0014] The present application uses a jig to position the parts to be welded of the product loaded by the loading device, so that the welding device can accurately weld the welding parts of the parts to be welded of the product, ensuring the accuracy of the product's welding position, thereby ensuring the product's welding quality and the final product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 Schematic diagram of the structure of the welding equipment in this embodiment;

[0017] Figure 2 It is a schematic diagram of the structure of the conveying device, the fixture, the dust removal device and the detection device in this embodiment;

[0018] Figure 3 Schematic diagram of the structure of the fixture in this embodiment;

[0019] Figure 4 is another structural schematic diagram of the fixture in this embodiment;

[0020] Figure 5It is a structural schematic diagram of the bearing portion and the side positioning portion in this embodiment;

[0021] Figure 6 Another structural schematic diagram of the bearing portion and the side positioning portion in this embodiment;

[0022] Figure 7 In this embodiment Figure 6 A magnified view of part A;

[0023] Figure 8 In this embodiment Figure 7 A magnified view of part B;

[0024] Fig. 9 Schematic diagram of the structure of the upper positioning part in this embodiment;

[0025] Fig.10 This is another structural schematic diagram of the upper positioning portion in this embodiment;

[0026] Fig.11 In this embodiment Figure 8 Enlarged view of part C;

[0027] Fig.12 In this embodiment Figure 5 Enlarged view of part D in .

[0028] Description of reference numerals:

[0029] 1. Loading device; 11. Incoming material mechanism; 111. Incoming material bracket; 112. Incoming material conveying line; 12. Incoming material transfer mechanism; 121. Transfer bracket; 122. Transfer assembly; 2. Conveying device; 21. Conveying rack; 22. Conveying drive mechanism; 3. Fixture; 31. Carrying part; 311. Carrying body; 3111. Carrying position; 3112. Avoiding position; 3113. Sensing position; 312. Long side reference piece; 321. Upper positioning drive assembly; 3211. First upper positioning Driving member; 3212, second upper positioning driving member; 322, upper positioning assembly; 3221, upper pressure plate; 3222, front pressure block; 3223, rear pressure block; 3224, end cover pressure block; 323, upper positioning sliding member; 3231, upper positioning slide plate; 3232, sliding support plate; 3233, sliding limit member; 324, upper guide member; 3241, guide column; 3242, connecting block; 325, upper limit member; 33, side positioning part; 331, short side positioning assembly; 33 11. Short side positioning reference member; 33111. First positioning reference step; 3312. Short side positioning drive member; 3313. Short side positioning member; 33131. Second positioning reference step; 332. First long side positioning assembly; 3321. First long side positioning drive member; 3322. First long side positioning member; 3323. First long side positioning sliding member; 33231. Long side positioning slide plate; 33232. Long side positioning sliding plate; 333. Second long side positioning assembly; 3331. Second long side positioning drive member; 3332, second long side positioning member; 33321, welding hole position; 334, clamping limit member; 4, welding device; 41, welding drive mechanism; 42, welding mechanism; 5, dust removal device; 51, dust removal mechanism; 6, detection device; 61, detection drive mechanism; 611, first detection drive assembly; 612, second detection drive assembly; 62, detection mechanism; 63, detection frame; 7, unloading device; 71, unloading mechanism; 72, unloading transfer mechanism. DETAILED DESCRIPTION

[0030] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0031] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0034] Reference Figure 1 , Figure 1 : is a schematic diagram of the structure of the welding equipment in this embodiment. The welding equipment in this embodiment includes a feeding device 1, a conveying device 2, a fixture 3 and a welding device 4. The feeding device 1 and the welding device 4 are sequentially arranged on the conveying path of the conveying device 2, and the conveying device 2 is connected to the fixture 3. The feeding device 1 is used for feeding products, the fixture 3 receives the fed products, and positions the parts to be welded in the products respectively, and the conveying device 2 conveys the positioned fixture 3 through the welding device 4. The welding device 4 welds the parts to be welded of the product.

[0035] The jig 3 positions the parts to be welded of the product fed by the feeding device 1, so that the welding device 4 can accurately weld the welding parts of the parts to be welded of the product, ensuring the accuracy of the welding position of the product, thereby ensuring the welding quality of the product and the quality of the final finished product. The product 100 in this embodiment is a battery, and its parts to be welded are the shell and the end cover, respectively. The end cover is arranged at the shell opening of the shell, and the welding device 4 welds the position where the end cover contacts the shell.

[0036] Re-reference Figure 1 Furthermore, the welding equipment in this embodiment further includes a dust removal device 5. The dust removal device 5 is arranged on the conveying path of the conveying device 2. The dust removal device 5 is used to remove dust from the parts to be welded in the product before welding. The dust removal device 5 removes dust from the parts to be welded in the product before welding, thereby ensuring the cleanliness of the welding position and thus ensuring the welding quality.

[0037] Re-reference Figure 1Furthermore, the welding equipment in this embodiment also includes a detection device 6. The detection device 6 is arranged on the conveying path of the conveying device 2. The detection device 6 is used to detect the height difference between the parts to be welded in the product. It can be understood that if the height difference between the two parts to be welded is large, misalignment will occur, welding cannot be performed or the welding effect is unsatisfactory. The detection device 6 detects the height between the parts to be welded of the product, which is the height difference between the shell and the end cover in this embodiment, to determine the height difference between the parts to be welded, so that unqualified products with large height differences can be eliminated in time, avoiding the production of defective welding products and saving welding resources.

[0038] Re-reference Figure 1 Furthermore, the welding equipment in this embodiment also includes a feeding device 7. The feeding device 7 is arranged on the conveying path of the conveying device 2. The feeding device 7 is used to feed the product after welding. In this way, through the arrangement of the feeding device 1, the conveying device 2, the fixture 3, the welding device 4, the dust removal device 5, the detection device 6 and the feeding device 7, the processes of product feeding, conveying, dust removal, detection, welding and feeding can be realized at one time, and the whole process is smooth, which ensures the welding efficiency of the product.

[0039] Re-reference Figure 1, further, the feeding device 1 includes a material incoming mechanism 11 and a material incoming transfer mechanism 12. The material incoming mechanism 11 is located on one side of the starting end of the conveying device 2, and the material incoming transfer mechanism 12 is located on one side of the material incoming mechanism 11 close to the starting end of the conveying device 2. The material incoming mechanism 11 is used for the incoming materials of the product, and the material incoming transfer mechanism 12 is used to transfer the incoming products to the fixture 3. Specifically, the material incoming mechanism 11 includes an incoming material bracket 111 and an incoming material conveying line 112. The incoming material conveying line 112 is arranged at the upper end of the incoming material bracket 111, and the end of the incoming material conveying line 112 has an incoming material position, and the incoming material is located adjacent to the incoming material transfer mechanism 12. The product 100 to be welded, which is a battery with an end cap and a shell assembled in this embodiment, is placed at the starting end of the incoming material conveying line 112, and then moves toward the incoming material position at its end driven by the incoming material conveying line 112, and pauses at the incoming material position to prepare for the incoming material transfer mechanism 12 to transfer. The incoming material mechanism 111 in this embodiment can adopt the existing conveyor belt mechanism. The incoming material transfer mechanism 12 includes a transfer bracket 121 and a transfer component 122. The transfer bracket 121 is arranged across the incoming material bracket 111 and the conveying device 2, and the transfer component 122 is arranged at the upper end of the transfer bracket 121, which transfers the product 100 at the end of the incoming material conveying line 112 to the starting fixture 3 of the conveying device 2. The transfer bracket 121 in this embodiment can adopt a gantry structure, and the transfer component 122 can adopt the cooperation of the XYZ three-degree-of-freedom linear module and the clamp. The XYZ three-degree-of-freedom linear module drives the clamp to transfer between the incoming material conveying line 112 and the conveying device 2. The clamp is used to grab or release the product. Of course, the clamp can also change the suction cup, or use the clamp and the suction cup to cooperate, or use other existing mechanisms to realize the grabbing and transfer of batteries, which are not limited here. The transfer component 122 in this embodiment adopts a double-claw configuration to realize the transfer of two adjacent batteries at one time to improve the efficiency of transfer and loading.

[0040] Continue to refer to Figure 1 and Figure 2 , Figure 2It is a structural schematic diagram of the conveying device, the jig, the dust removal device, the detection device and the welding device in this embodiment. Furthermore, the conveying device 2 includes a conveying frame 21 and a conveying drive mechanism 22. The conveying drive mechanism 22 is arranged in the conveying frame 21, and the jig 3 is slidably connected to the conveying frame 21. The driving end of the conveying drive mechanism 22 is connected to the jig 3, and it drives the jig 3 to move linearly along the laying direction of the conveying frame 21. The conveying frame 21 in this embodiment can adopt a rectangular frame body, and the jig 3 forms a sliding connection relationship with the conveying frame 21 through the cooperation of the slide rail and the slider, and the conveying drive mechanism 22 can adopt a linear motor or a linear module. The dust removal device 5, the detection device 6 and the welding device 4 conveying drive mechanism 22 drive the jig 3 to move linearly in the direction arranged in sequence, so that the product carried by the jig 3 passes through the dust removal device 5, the detection device 6 and the welding device 4 in sequence, thereby completing the dust removal of the product, the height difference detection of the parts to be welded and the welding process. Preferably, the conveying rack 21 and the conveying drive mechanism 22 are provided in multiple groups, and the multiple groups of conveying racks 21 and the conveying drive mechanism 22 are arranged side by side so that multiple jigs 3 can be conveyed respectively. The detection device 6 and the welding device 4 can respectively perform height difference detection and welding on the products in the multiple jigs 3, thereby making full use of the detection and welding resources to improve efficiency. In this embodiment, the conveying rack 21 and the conveying drive mechanism 22 are provided in four groups to realize four-channel alternating processing.

[0041] Reference Figure 3 and Figure 4 , Figure 3 Schematic diagram of the structure of the fixture in this embodiment. Figure 4 It is another structural schematic diagram of the fixture in this embodiment. The fixture 3 includes a bearing portion 31, an upper positioning portion 32 and a side positioning portion 33. The bearing portion 31 is used to carry the product. The upper positioning portion 32 is located above the bearing portion 31, and is used to perform upper limit positioning and upper positioning on the parts to be welded in the product. The side positioning portion 33 is located on the side of the bearing portion 31, and is used to perform side limit positioning and side positioning on the parts to be welded of the product. Through the cooperation of the upper positioning portion 32 and the side positioning portion 33, the parts to be welded of the product carried by the bearing portion 31 are limited and positioned respectively, and finally the parts to be welded of the product are accurately positioned, so that the parts to be welded of the product are stable, and their welding positions are determined, thereby ensuring the subsequent welding quality and finished product quality of the product. The transfer component 122 transfers the product to the bearing portion 31 of the fixture 3 for carrying, and then after being positioned by the upper positioning portion 32 and the side positioning portion 33, the fixture 3 is transferred by the transmission drive mechanism 22.

[0042] Continue to refer to Figures 5 to 7 , Figure 5 Schematic diagram of the structure of the bearing part and the side positioning part in this embodiment. Figure 6is another structural schematic diagram of the bearing portion and the side positioning portion in this embodiment, Figure 7 In this embodiment Figure 6 An enlarged view of part A. Furthermore, the bearing portion 31 includes a bearing body 311. The bearing body 311 has a bearing position 3111 and an avoidance position 3112. The bearing position 3111 is arranged along the periphery of the avoidance position 3112, the bearing position 3111 is used for bearing and supporting the product, and the avoidance position 3112 is used for contact avoidance of the product. By setting the avoidance position 3112, the contact area of ​​the bearing position 3111 when bearing the battery casing is reduced, thereby avoiding the problem of unevenness during bearing and supporting caused by the uneven surface of the battery casing. Specifically, the bearing portion 31 also includes a bearing frame 313. The bearing frame 313 includes a bottom plate 3131, a top plate 3132 and two vertical plates 3133. The lower ends of the two vertical plates 3133 are respectively arranged vertically on the upper surface of the bottom plate 3131, and are respectively close to the opposite two sides of the bottom plate 3131, and the two vertical plates 3133 are opposite to each other, and the top plate 3132 is arranged at the upper ends of the two vertical plates 3133, and the top plate 3132 is opposite to the bottom plate 3131. The bottom plate 3131, the top plate 3132 and the two vertical plates 3133 form a frame structure, and a rectangular space is formed between the three. The bottom plate 3131 and the top plate 3132 in this embodiment are rectangular plates, and the vertical plates 3133 are rectangular plates. The bearing body 311 is arranged on the upper surface of the top plate 3132 and is adjacent to the side of the top plate 3132. Preferably, the bearing body 311 is flush with the side of the top plate 3132. The middle part of the surface of the carrier body 311 is concave to form an avoidance position 3112, so that the carrier body 311 is convex on the concave periphery to form a bearing position 3111. The shape and size of the bearing position 3111 are adapted to the battery housing. The bearing position 3111 in this embodiment is approximately a rectangular body. When the battery housing is placed on the carrier body 311, the surface of the housing is carried on the bearing position 3111. It can be understood that the surface of the housing cannot be guaranteed to be completely smooth, and it has a certain concave and convex shape. The bearing position 3111 in this embodiment only contacts the periphery of the housing when carrying, thereby reducing the contact area with the housing surface, and avoiding the uneven bearing caused by the concave and convex surface when the housing is carried as much as possible, thereby ensuring the accuracy of the subsequent positioning of the housing. Preferably, the carrier body 311 also includes a sensing position 3113. The sensing position 3113 is arranged at the avoidance position 3112, which is used to sense whether a product is carried on the bearing position 3111, so as to facilitate the positioning control of the product. In specific applications, the sensing position 3113 can be provided with a sensor to sense the presence or absence of a product, for example, a photoelectric sensor or a proximity switch.

[0043] Continue to refer to Figure 7 and Figure 8 , Figure 8 In this embodiment Figure 7. Furthermore, a long side reference member 312 is provided on the carrier body 311. The long side reference member 312 is adjacent to the bearing position 3111. In this embodiment, the long side reference member 312 is provided on one side of the side of the carrier body 311 adjacent to the top plate 3132. The height of the long side reference member 312 is higher than the plane where the bearing position 3111 is located, so that a step-shaped reference position is formed between the long side reference member 312 and the bearing position 3111. After the shell is carried on the bearing position 3111, the long side of the shell is directly opposite to the long side reference member 312, so that the long side of the shell can be positioned with the long side reference member 312 as a reference. At this time, the end cover of the battery is placed on the long side reference member 312, and the end cover is carried by the long side reference member 312. The step height between the long side reference member 312 and the bearing position 3111 is adapted to the height difference between the shell and the end cover. The long side reference members 312 in this embodiment are two steps protruding from the side wall of the bearing body 311 , and the two steps respectively support the two ends of the end cover.

[0044] Continue to refer to Figure 3 , Figure 4 , Fig. 9 , Fig.10 and Fig.11 , Fig. 9 Schematic diagram of the structure of the upper positioning part in this embodiment, Fig.10 is another structural schematic diagram of the upper positioning part in this embodiment, Fig.11 In this embodiment Figure 8 . Furthermore, the upper positioning portion 32 includes an upper positioning drive assembly 321 and an upper positioning assembly 322. The output end of the upper positioning drive assembly 321 is connected to the upper positioning assembly 322, which drives the upper positioning assembly 322 to move closer to or away from the product, and the upper positioning assembly 322 limits or positions the surface of the part to be welded of the product. The upper positioning assembly 322 is used to press and position the battery shell and the end cover, and can assist in limiting the battery shell to meet the side positioning requirements of the shell.

[0045] Specifically, the upper positioning portion 32 also includes an upper positioning sliding member 323. The upper positioning sliding member 323 includes an upper positioning slide plate 3231 and a sliding support plate 3232. The lower ends of the two sliding support plates 3232 are respectively vertically arranged on the upper surface of the top plate 3132, and the two sliding support plates 3232 are parallel and respectively adjacent to the two vertical plates 3133. In this embodiment, the sliding support plates 3232 are parallel to the vertical plates 3133, and the bearing body 311 is located between the two sliding support plates 3232. The upper positioning slide plate 3231 is slidably connected to the upper ends of the two sliding support plates 3232 through the cooperation of the slider and the slide rail, and the upper positioning slide plate 3231 is located above the bearing body 311. Preferably, the upper positioning sliding member 323 also includes a sliding limiter 3233, which is arranged on the surface of the top plate 3132 and is located on the side of the upper positioning slide plate 3231 away from the bearing body 311. The sliding limiter 3233 is used to limit the sliding stroke of the upper positioning slide plate 3231. The sliding limiter 3233 in this embodiment can be formed by the cooperation of a support frame and a limiter block or a limiter.

[0046] The upper positioning drive assembly 321 includes a first upper positioning drive member 3211 and a second upper positioning drive member 3212. The driving end of the first upper positioning drive member 3211 is connected to the upper positioning slide member 323. The second upper positioning drive member 3212 is arranged on the upper positioning slide member 323, and its output end is connected to the upper positioning assembly 322. The first upper positioning drive member 3211 drives the upper positioning slide member 323 to move linearly in a direction parallel to the bearing body 311, thereby driving the second upper positioning drive member 3212 and the upper positioning assembly 322 to move synchronously, and the second upper positioning drive member 3212 drives the upper positioning assembly 322 to move linearly in a direction perpendicular to the bearing body 311, thereby driving the upper positioning assembly 322 to move synchronously. In this way, through the cooperative driving of the first upper positioning drive member 3211 and the second upper positioning drive member 3212, the upper positioning assembly 322 moves linearly in a direction parallel to the bearing body 311 and perpendicular to the bearing body 311, respectively, so as to limit and position the product carried by the bearing position 3111. Specifically, the first upper positioning driver 3211 is arranged on the upper surface of the top plate 3132 and is located between the two sliding support plates 3232. The output end of the first upper positioning driver 3211 is connected to the lower surface of the upper positioning slide plate 3231, and drives the upper positioning slide plate 3231 to slide on the sliding support plate 3232. The first upper positioning driver 3211 in this embodiment can be a cylinder. The second upper positioning driver 3212 is arranged on the upper positioning slide plate 3231, and the upper positioning assembly 322 is located between the second upper positioning driver 3212 and the top plate 3132. The output end of the second upper positioning driver 3212 is connected to the upper positioning assembly 322, and drives the upper positioning assembly 322 to move linearly. The second upper positioning driver 3212 can be a cylinder. Preferably, the upper positioning portion 32 also includes an upper guide member 324. The upper guide member 324 is used to guide the linear movement of the upper positioning assembly 322 driven by the second upper positioning driver 3212, so that the upper guide member 324 moves toward the product carried by the bearing position 3111, and the movement is stable. One end of the upper guide member 324 passes through the upper positioning slide 3231 and is connected to the upper positioning assembly 322. The upper guide member 324 is parallel to the driving direction of the second upper positioning driver 3212, and in this embodiment, it is parallel to the driving rod of the second upper positioning driver 3212. Preferably, the upper guide member 324 includes two guide posts 3241 and a connecting block 3242. The two guide posts 3241 are arranged side by side, and the two guide posts 3241 are vertically penetrated on the upper positioning slide 3231 and are slidably connected to the upper positioning slide 3231. The lower ends of the two guide posts 3241 are connected to the upper positioning assembly 322, and the upper ends of the two guide posts 3241 are connected by a connecting block 3242. Preferably, there are two upper guide members 324 , and the two upper guide members 324 are respectively located on two opposite sides of the second upper positioning driving member 3212 .Preferably, the upper positioning part 32 also includes an upper limit member 325, which is used to limit the driving stroke of the second upper positioning driver 3212 to prevent the second upper positioning driver 3212 from being overdriven and causing damage to the product. The upper limit member 325 is arranged on the connecting block 3242, and its limiting end faces the upper positioning slide plate 3231. In this embodiment, the support frame can cooperate with the limiting block or the limiter, which moves with the connecting block 3242. When the upper limit member 325 abuts against the surface of the upper positioning slide plate 3231, the second upper positioning driver 3212 is driven and limited.

[0047] The upper positioning assembly 322 includes an upper pressing plate 3221, a front pressing block 3222 and a rear pressing block 3223. The upper pressing plate 3221 is parallel to the bearing body 311, and its upper surface is connected to the output end of the second upper positioning driving member 3212 and the lower end of the guide column 3241. The front pressing block 3222 and the rear pressing block 3223 are respectively arranged on the lower surface of the upper pressing plate 3221, wherein the front pressing block 3222 is located close to the side of the bearing body 311 where the long side reference member 312 is provided. The surfaces of the front pressing block 3222 and the rear pressing block 3223 are flush. Preferably, the upper positioning assembly 322 also includes an end cover pressing block 3224. The end cover pressing block 3224 is arranged on the upper pressing plate 3221 and is adjacent to the front pressing block 3222. The height of the end cover pressing block 3224 is greater than the height of the front pressing block 3222, so that a step is formed between the front pressing block 3222 and the end cover pressing block 3224. When the second upper positioning drive member 3212 drives the upper positioning assembly 322 to limit or position the battery on the bearing position 3111, the front pressure block 3222 and the rear pressure block 3223 cooperate with the bearing position 3111 to press and position or fit and limit the battery shell, and the end cover pressure block 3224 faces the long side reference member 312, and the two cooperate with each other to press and position or fit and limit the end cover of the battery. In addition, the step formed between the front pressure block 3222 and the end cover pressure block 3224 can also be used as a positioning reference for the long side of the shell together with the long side reference member 312. The height of the step formed between the front pressure block 3222 and the end cover pressure block 3224 is adapted to the height difference between the shell and the end cover.

[0048] Continue to refer to Figure 5 , Figure 6 and Fig.12 , Fig.12 In this embodiment Figure 5In the enlarged view of the D part in the figure, further, the side positioning part 33 includes a short side positioning component 331. The short side positioning component 331 is arranged on one side of the bearing part 31 and faces the short side of the product. The short side positioning component 331 is used to perform side limiting and side positioning on the short sides of the parts to be welded in the product. Preferably, the short side positioning component 331 includes a short side positioning reference member 3311, a short side positioning driving member 3312 and a short side positioning member 3313. The short side positioning reference member 3311 and the short side positioning member 3313 are respectively arranged on two opposite sides of the bearing part 31 and face the short sides of the product respectively. The driving end of the short side positioning driving member 3312 is connected to the short side positioning member 3313, which drives the short side positioning member 3313 to limit or position the short side of the parts to be welded in the product based on the short side positioning reference member 3311.

[0049] Specifically, the short side positioning reference member 3311 is arranged on the surface of the top plate 3132 and is located on one side of the bearing body 311. When the shell is carried on the bearing position 3111, the short side positioning reference member 3311 is opposite to the short side of the battery shell. Preferably, there are two short side positioning reference members 3311 arranged side by side. One of the short side positioning reference members 3311 is opposite to the battery shell, which can be used as the positioning reference of the shell; the other short side positioning reference member 3311 has a first positioning reference step 33111, which is opposite to the shell and the end cover at the same time, and can be used as the positioning reference of the end cover and the shell. The short side positioning reference member 3311 in this embodiment can adopt a reference block, and the first positioning reference step 33111 is an adaptive step formed on the surface of the reference block corresponding to the height difference between the shell and the end cover.

[0050] The short side positioning driving member 3312 is disposed on the surface of the top plate 3132 and is located on the other side of the bearing body 311. Its output end is connected to the short side positioning member 3313, and the short side positioning member 3313 is directly opposite to the short side positioning reference member 3311. The short side positioning driving member 3312 drives the short side positioning member 3313 to move linearly along the direction directly opposite to the short side positioning reference member 3311, so that the short side positioning member 3313 cooperates with the short side positioning reference member 3311 to press and position or limit the short side of the shell. The short side positioning member 3313 in this embodiment may be U-shaped, with its two ends respectively facing the two short side positioning reference members 3311. Preferably, one end of the short side positioning member 3313 faces the short side positioning reference member 3311 provided with a first positioning reference step 33111, and the end of the short side positioning member 3313 has a second positioning reference step 33131, and the second positioning reference step 33131 faces the first positioning reference step 33111. The structure of the second positioning reference step 33131 is consistent with the first positioning reference step 33111, and the two cooperate with each other to position the shell and the end cover respectively according to the height difference between the shell and the end cover.

[0051] Re-reference Figure 5 , Figure 6 and Fig.12 , further, the side positioning part 33 also includes a first long side positioning component 332. The first long side positioning component 332 is arranged on one side of the bearing part 31 and faces one of the components to be welded in the product. The first long side positioning component 332 is used to position the long side of one of the components to be welded in the product. In this embodiment, one of the components to be welded is the shell of the battery. The first long side positioning component 332 is arranged on the surface of the bottom plate 3131, and is located in the space formed by the bottom plate 3131, the top plate 3132 and the two vertical plates 3133. The first long side positioning component 332 includes a first long side positioning driver 3321 and a first long side positioning component 3322. The output end of the first long side positioning driver 3321 is connected to the first long side positioning component 3322, which drives the first long side positioning component 3322 to position the long side of one of the components to be welded in the product. Specifically, the first long side positioning component 332 also includes a first long side positioning sliding member 3323. The first long side positioning sliding member 3323 includes a long side positioning slide plate 33231 and two long side positioning slide plates 33232. The two long side positioning slide plates 33232 are respectively arranged perpendicularly on the bottom plate 3131, the two long side positioning slide plates 33232 are directly opposite, and the two long side positioning slide plates 33232 are respectively perpendicular to the bearing body 311 and are located on the side of the bearing body 311 away from the long side reference member 312. The long side positioning slide plate 33231 is slidably connected to the two long side positioning slide plates 33232 through the cooperation of the slider and the slide rail. The first long side positioning driving member 3321 is arranged on the bottom plate 3131 and is located between the two long side positioning slide plates 33232. The output end of the first long side positioning driving member 3321 is connected to the long side positioning slide plate 33231, and drives the long side positioning slide plate 33231 to move linearly along a direction perpendicular to the bearing body 311. The first long side positioning driving member 3321 in this embodiment is a combination of a motor and a screw pair. The motor is used as a driving source, and the screw transmission is used to drive the long side positioning slide plate 33231 to move linearly in a direction perpendicular to the bearing body 311. Preferably, the surface of the long side positioning slide plate 33231 is flush with the surface of the bearing position 3111 of the bearing body 311. The first long side positioning member 3322 is arranged on the surface of the long side positioning slide plate 33231, which is directly opposite to the bearing body 311. The long side positioning slide plate 33231 moves linearly, driving the first long side positioning member 3322 to move linearly. The first long side positioning member 3322 in this embodiment is a combination of a bracket and a positioning block, and the positioning block is adapted to the long side of the shell, so as to facilitate the positioning of the shell. When the shell is carried on the bearing position 3111, the first long side positioning member 3322 moves linearly toward the bearing shell on the bearing position 3111, and clamps and positions the shell with the long side reference member 312 as a reference.

[0052] Re-reference Figure 5, Figure 6 and Fig.12 , further, the side positioning part 33 also includes a second long side positioning component 333. The second long side positioning component 333 is arranged on the side of the bearing part 31 away from the first long side positioning component 332, and faces another component to be welded in the product. The second long side positioning component 333 is used to position the long side of another component to be welded in the product. In this embodiment, the other component to be welded is the end cover of the battery. The second long side positioning component 333 includes a second long side positioning driver 3331 and a second long side positioning member 3332. The output end of the second long side positioning driver 3331 is connected to the second long side positioning member 3332, which drives the second long side positioning member 3332 to position the long side of another component to be welded in the product. The second long side positioning driver 3331 is arranged on the bottom plate 3131, and is close to the side of the bearing body 311 having the long side reference member 312. The second long side positioning member 3332 is directly opposite to the first long side positioning member 3322. The first long side positioning driving member 3321 first drives the first long side positioning member 3322 to cooperate with the long side reference member 312 to clamp and position the shell, and then the second long side positioning driving member 3331 drives the first long side positioning member 3322 to move toward the end cover, so that the end cover is clamped and positioned with the shell as the reference point. The second long side positioning member 3332 in this example reserves a welding hole 33321, so that the junction between the shell and the end cover is exposed, which is convenient for subsequent laser welding. Preferably, the second long side positioning assembly 333 also includes a second long side positioning sliding member 3333. The second long side positioning member 3332 positions the end cover in a sliding movement manner through the second long side positioning sliding member 3333 to ensure the stability of movement. The structure and actuation principle of the second long side positioning sliding member 3333 are consistent with the structure and actuation principle of the first long side positioning sliding member 3323, and will not be repeated here.

[0053] Preferably, the side plate positioning part 3 further includes a clamping limiter 334. The clamping limiter 334 is arranged on the second long side positioning member 3332 or the first long side positioning member 3322, and is used to limit the distance between the second long side positioning member 3332 and the first long side positioning member 3322, so as to avoid excessive clamping between the second long side positioning member 3332 and the first long side positioning member 3322, thereby causing the end cover to sink into the shell. The clamping limiter 334 in this embodiment can be a limiter rod with one end vertically arranged on the second long side positioning member 3332 or the first long side positioning member 3322, and the other end of the limiter rod is directly opposite to the first long side positioning member 3322 or the other end is directly opposite to the second long side positioning member 3332.

[0054] The overall positioning process of the battery shell and end cover of the fixture 3 in this embodiment is as follows: In the first step, the first upper positioning drive 3211 drives the upper positioning assembly 322 to move in a direction away from the bearing body 311, so that the bearing body 311 is exposed. In the second step, the external manipulator grabs the shell equipped with the end cover and moves it to the bearing position 3111 of the bearing body 311. In the third step, the first upper positioning drive 3211 drives the upper positioning assembly 322 to move directly above the bearing body 311, so that the upper positioning assembly 322 is directly opposite to the bearing position 3111 and the shell and end cover carried by the long side reference member 312. In the fourth step, the second upper positioning drive 3212 drives the upper positioning assembly 322 to move downward and makes the front pressure block 3222 and the rear pressure block 3223 fit the surface of the shell, and the end cover pressure block 3224 fits the surface of the end cover, limits the shell and the end cover, and does not press down, so that the shell and the end cover are in a movable state. In the fifth step, the short side positioning driver 3312 drives the short side positioning member 3313 to position the short sides of the shell and the end cover respectively with the short side positioning reference member 3311 as the reference, and then the short side positioning member 3313 and the short side positioning reference member 3311 are in a pressed and pressure-free state, which can be achieved by the state where the cylinder is first driven and then discharged, so that the shell and the end cover are in a movable state. In the sixth step, the first long side positioning driver 3321 drives the first long side positioning member 3322 to press and position the shell with the long side reference member 312 and the end cover pressing block 3224 as the reference. In the seventh step, the second long side positioning driver 3331 drives the second long side positioning member 3332 to position the end cover with the shell as the reference, and the clamping limit member 334 limits the positioning of the second long side positioning member 3332 to avoid excessive movement. In the eighth step, the leakage state of the short side positioning drive member 3312 disappears, so that the short side positioning drive member 3312 provides driving force again to press the shell and the end cover, and then the second upper positioning drive member 3212 provides pressure again to press the shell and the end cover to complete the entire positioning of the shell and the end cover.

[0055] Re-reference Figure 1 and Figure 2 Furthermore, after the product is carried on the jig 3, the dust removal device 5 blows and removes dust from the product carried by the jig 3. The dust removal device 5 in this embodiment includes four dust removal mechanisms 51, and the four dust removal mechanisms 51 are respectively arranged on one side of the four conveying drive mechanisms 22, and the dust removal ends of the four dust removal mechanisms 51 are respectively opposite to the ends of the four conveying drive mechanisms 22. The dust removal mechanism 51 in this embodiment is a combination of a support frame, a dust removal pipe and a blower. Preferably, two products are symmetrically carried in each jig 3, and each dust removal mechanism 51 is correspondingly provided with two dust removal ends facing the two products in each jig 3. In specific applications, the dust removal can be carried out before the product is positioned by the jig 3, or after the product is positioned, the dust can be removed through the welding hole 33321.

[0056] Re-reference Figure 1 and Figure 2 , further, the detection device 6 includes a detection drive mechanism 61 and a detection mechanism 62. The driving end of the detection drive mechanism 61 is connected to the detection mechanism 62, which drives the detection mechanism 62 to approach or move away from the product carried by the fixture 3, and the detection mechanism 62 detects the height difference between the parts to be welded in the product. In this embodiment, the height difference between the shell and the end cover is detected. Specifically, the detection device 6 also includes a detection frame 63. The detection frame 63 is horizontally arranged above the conveying device 2. The detection frame 63 in this embodiment is a gantry, which is horizontally arranged above the four conveying drive mechanisms 22 and close to the middle position of the conveying drive mechanism 22. The detection drive mechanism 61 includes a first detection drive component 611 and a second detection drive component 612. The first detection drive component 611 is arranged on the detection frame 63, and its output end is connected to the second detection drive component 612, and the output end of the second detection drive component 612 is connected to the detection mechanism 62. The first detection drive component 611 drives the second detection drive component 612 to move linearly in a direction parallel to the fixture 3, driving the detection mechanism 62 to move synchronously, and the second detection drive component 612 drives the detection mechanism 62 to move linearly in a direction perpendicular to the fixture 3. In this embodiment, both the first detection drive component 611 and the second detection drive component 612 can adopt linear modules. When specifically set, the first detection drive component 611 is laid on the crossbeam of the detection frame 63, and the second detection drive component 612 is vertically arranged on the slide of the first detection drive component 611. In this way, the detection mechanism 62 is driven by the first detection drive component 611 and the second detection drive component 612 to approach the battery carried by the fixture 3, and detect the height difference between the battery shell and the end cover. The detection mechanism 62 in this embodiment can adopt a 2D laser displacement sensor. In specific applications, the qualified line can be set according to needs. For example, if the height difference between the shell and the end cover detected by the detection mechanism 62 is greater than 0.3mm, it is a defective product and needs to be eliminated in time.

[0057] Re-reference Figure 1 and Figure 2, further, the welding device 4 includes a welding drive mechanism 41 and a welding mechanism 42. The output end of the welding drive mechanism 41 is connected to the welding mechanism 42, which drives the welding mechanism 42 to approach or move away from the product carried by the fixture 3, and the welding mechanism 42 welds the joint between the shell and the end cover. The welding device 4 and the detection device 6 in this embodiment share the detection frame 63, and the two are respectively located on opposite sides of the detection frame 63. The welding drive mechanism 41 is arranged on the side of the detection frame 63 facing away from the detection device 6. The structure and actuation principle of the welding drive mechanism 41 are consistent with the structure and actuation principle of the detection drive mechanism 61, and will not be repeated here. The welding mechanism 42 can use an existing laser welding machine, which is not limited here. At the beginning of the transmission drive mechanism 22, the product in the fixture 3 is first dusted by the dust removal device 5, and then, driven by the transmission drive mechanism 22, the fixture 3 passes through the detection device 6 for height difference detection, and then passes through the welding device 4 for welding. A welding device 4 and a detection device 6 can respectively perform welding and detection actions on the products in the four fixtures 3 in sequence, so as to make optimal use of the welding device 4 and the detection device 6 and adapt to the frequency of the transmitted fixture 3, thereby ensuring the overall welding efficiency.

[0058] Re-reference Figure 1 Furthermore, the unloading device 7 includes an unloading mechanism 71 and an unloading transfer mechanism 72. The unloading mechanism 71 is located at one side of the end of the conveying device 2, and the unloading transfer mechanism 72 is located at one side of the unloading mechanism 71 close to the end of the conveying device 2. The unloading transfer mechanism 72 transfers the welded product to the unloading mechanism 71, and the unloading mechanism 71 transfers the product to the next process. In specific applications, the unloading mechanism 71 and the unloading transfer mechanism 72 can adopt mechanisms similar to the incoming material mechanism 11 and the incoming material transfer mechanism 12, which will not be repeated here.

[0059] In summary, the welding equipment in this embodiment can position the shell and the end cover of the battery respectively, so that the welding device can accurately perform laser spot welding on the shell and the end cover, ensuring the welding quality and the quality of the final product.

[0060] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A welding device, characterized in that: The invention comprises a feeding device (1), a conveying device (2), a jig (3) and a welding device (4); the feeding device (1) and the welding device (4) are arranged on a conveying path of the conveying device (2) in sequence, and the conveying device (2) is connected to the jig (3); the feeding device (1) is used for feeding products, the jig (3) receives the fed products and respectively positions the parts to be welded in the products, the conveying device (2) conveys the positioned jig (3) through the welding device (4); the welding device (4) welds the parts to be welded of the products; The conveying device (2) comprises a conveying frame (21) and a conveying drive mechanism (22); the jig (3) is slidably connected to the conveying frame (21); an output end of the conveying drive mechanism (22) is connected to the jig (3), and drives the jig (3) to move linearly; The jig (3) comprises a bearing portion (31), an upper positioning portion (32) and a side positioning portion (33); the upper positioning portion (32) is located above the bearing portion (31), and the side positioning portion (33) is located on the side of the bearing portion (31); the bearing portion (31) is used for bearing the product, the upper positioning portion (32) is used for performing upper limit positioning and upper positioning on the components to be welded in the product, and the side positioning portion (33) performs side limit positioning and side positioning on the components to be welded in the product; The bearing portion (31) comprises a bearing body (311), the bearing body (311) having a bearing position (3111) and an avoidance position (3112), the bearing position (3111) being arranged along the periphery of the avoidance position (3112), the bearing position (3111) being used for bearing and supporting the product, and the avoidance position (3112) being used for contact and avoidance of the product; the upper positioning portion (32) comprises an upper positioning drive component (321), an upper positioning component (322), and an upper positioning sliding member (323), the output end of the upper positioning drive component (321) being connected to the upper positioning component (322), the upper positioning drive component (321) driving the upper positioning component (322) to approach or move away from the product, and the upper positioning component (322) moving the product The upper positioning sliding member (323) includes an upper positioning sliding plate (3231) and a sliding support plate (3232). The lower ends of the two sliding support plates (3232) are respectively arranged perpendicularly on the upper surface of the top plate (3132). The two sliding support plates (3232) are parallel and respectively adjacent to the two vertical plates (3133). The upper positioning assembly (322) includes an upper pressing plate (3221), a front pressing block (3222) and a rear pressing block (3223). The front pressing block (3222) and the rear pressing block (3223) are respectively arranged on the lower surface of the upper pressing plate (3221). The surfaces of the front pressing block (3222) and the rear pressing block (3223) are flush.

2. The welding device according to claim 1, characterized in that It also includes a dust removal device (5); the dust removal device (5) is arranged on the conveying path of the conveying device (2); the dust removal device (5) is used for removing dust from the parts to be welded in the product before welding.

3. The welding device according to claim 1, characterized in that It also includes a detection device (6); the detection device (6) is arranged on the conveying path of the conveying device (2); the detection device (6) is used to detect the height difference between the parts to be welded in the product.

4. The welding device according to claim 1, characterized in that: It also includes a material unloading device (7); the material unloading device (7) is arranged on the conveying path of the conveying device (2); the material unloading device (7) is used for unloading the product after welding is completed.

5. The welding equipment according to any one of claims 1 to 4, characterized in that: The feeding device (1) comprises a material incoming mechanism (11) and a material incoming transfer mechanism (12); the material incoming mechanism (11) is located on one side of the starting end of the conveying device (2), and the material incoming transfer mechanism (12) is located on one side of the material incoming mechanism (11) close to the starting end of the conveying device (2); the material incoming mechanism (11) is used for the incoming material of the product, and the material incoming transfer mechanism (12) is used for transferring the incoming product to the fixture (3).

6. The welding equipment according to any one of claims 1 to 4, characterized in that: The welding device (4) comprises a welding drive mechanism (41) and a welding mechanism (42); an output end of the welding drive mechanism (41) is connected to the welding mechanism (42), and drives the welding mechanism (42) to approach or move away from the product, and the welding mechanism (42) welds the parts to be welded in the product.

7. The welding device according to claim 3, characterized in that: The detection device (6) comprises a detection drive mechanism (61) and a detection mechanism (62); a driving end of the detection drive mechanism (61) is connected to the detection mechanism (62), and drives the detection mechanism (62) to approach or move away from the product carried by the fixture (3); the detection mechanism (62) detects the height difference between the parts to be welded in the product.

8. The welding device according to claim 4, characterized in that The unloading device (7) comprises an unloading mechanism (71) and an unloading transfer mechanism (72); the unloading mechanism (71) is located on one side of the end of the conveying device (2), and the unloading transfer mechanism (72) is located on one side of the unloading mechanism (71) close to the end of the conveying device (2); the unloading transfer mechanism (72) transfers the welded product to the unloading mechanism (71).

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