Cylindrical battery welding device and processing equipment

Abstract

The utility model relates to a cylindrical battery welding device and machining equipment. The cylindrical battery welding device comprises a supporting mechanism and a welding mechanism, the pressing mechanism is arranged on the supporting mechanism and comprises a pressing assembly and a pressing driving assembly, the pressing assembly is connected to the pressing driving assembly, and the pressing driving assembly can drive the pressing assembly to abut against the to-be-welded face of the cylindrical battery; the buffer limiting mechanism is arranged on the supporting mechanism and can abut against the to-be-welded face of the cylindrical battery so as to buffer the pressing effect generated when the pressing assembly abuts against the to-be-welded face of the cylindrical battery. The welding head is arranged on the pressing mechanism and can be close to the to-be-welded face of the cylindrical battery along with the pressing mechanism. According to the device, the problem that the battery welding effect is poor due to manual intervention in the welding process of the to-be-welded face of the cylindrical battery is effectively solved, the welding stability of the cylindrical battery is effectively improved, meanwhile, the welding efficiency of the cylindrical battery is improved, and the battery production precision is effectively guaranteed.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular to a cylindrical battery welding device and processing equipment. Background Art

[0002] As battery production technology continues to advance and battery product application scenarios continue to expand, the operational requirements for each link in the battery production process are becoming increasingly stringent. During the processing of cylindrical batteries, the tabs and the top cover must be welded first to ensure battery performance.

[0003] In related technologies, manual intervention is usually required when welding cylindrical batteries, and the degree of automation is low, resulting in poor battery welding effects. Utility Model Content

[0004] Based on this, it is necessary to provide a cylindrical battery welding device and processing equipment to address the above technical problems.

[0005] A cylindrical battery welding device, comprising:

[0006] Support mechanism;

[0007] A pressing mechanism is provided on the supporting mechanism, the pressing mechanism comprising a pressing assembly and a pressing drive assembly, the pressing assembly being connected to the pressing drive assembly, and the pressing drive assembly being capable of driving the pressing assembly to abut against the surface to be welded of the cylindrical battery;

[0008] A buffering and limiting mechanism is provided on the supporting mechanism and can abut against the surface of the cylindrical battery to be welded to buffer the pressing effect of the pressing component when it abuts against the surface of the cylindrical battery to be welded;

[0009] The welding head is arranged on the pressing mechanism and can follow the pressing mechanism to approach the surface to be welded of the cylindrical battery.

[0010] In one embodiment, the pressing mechanism further includes a pressing buffer unit and a pressing bearing unit, and the pressing buffer unit is disposed between the pressing assembly and the pressing bearing unit.

[0011] In one embodiment, the pressing buffer unit includes a plurality of first compression elastic members, which are arranged around the energy output end of the welding head, one end of any one of the first compression elastic members is connected to the side of the pressing bearing unit close to the pressing component, and the other end of any one of the first compression elastic members is connected to the pressing component.

[0012] In one embodiment, the support mechanism includes a support vertical plate, and the buffer limit mechanism includes a first buffer limit assembly and a second buffer limit assembly, and the first buffer limit assembly and the second buffer limit assembly are symmetrically arranged on both sides of the support vertical plate.

[0013] In one embodiment, the first buffer limit assembly and the second buffer limit assembly both include a buffer, a buffer limit part, a hard limit part and a buffer mounting part. The buffer and the hard limit part are arranged on the buffer mounting part. One end of the buffer and the hard limit part is connected to the buffer limit part, and the other end of the buffer and the hard limit part can abut against the surface to be welded of the cylindrical battery.

[0014] In one embodiment, the pressing mechanism also includes a protective gas unit, the pressing assembly includes a pressing cylinder inner layer, a pressing cylinder outer layer and a pressing mounting seat, the protective gas unit and the pressing cylinder outer layer are arranged on the pressing mounting seat, the pressing cylinder inner layer is connected to the pressing cylinder outer layer, the pressing cylinder inner layer and the pressing cylinder outer layer are both provided with a hollow gap, and the hollow gap is connected to the input end of the protective gas unit.

[0015] In one embodiment, the pressing drive assembly includes a guide member and a driving member, the guide member includes a guide rail pair and a guide rail mounting plate, the guide rail pair is arranged on the guide rail mounting plate, the driving member includes a slide cylinder and a cylinder mounting plate, the slide cylinder is arranged on the cylinder mounting plate, one end of the slide cylinder is connected to the pressing assembly, and the slide cylinder can drive the pressing surface of the pressing assembly to move in a direction parallel to the surface to be welded of the cylindrical battery.

[0016] In one embodiment, the support mechanism further includes a support base plate, and the pressing mechanism further includes a pressure monitoring component. The pressure monitoring component is arranged on a side of the support base plate away from the pressing buffer unit, and the pressure monitoring component can abut against the pressing component.

[0017] In one embodiment, the pressure monitoring assembly includes a pressure baffle, a second compression elastic member, a pressure mounting block and a pressure sensor, the pressure sensor is arranged on the pressure mounting block, one end of the second compression elastic member is connected to the pressure baffle, and the other end of the second compression elastic member can abut against the pressure mounting block.

[0018] A processing device comprising:

[0019] Such as the cylindrical battery welding device mentioned above.

[0020] The technical effects of the embodiments provided in this application are as follows:

[0021] In the above-mentioned cylindrical battery welding device, when welding a cylindrical battery, the pressing drive assembly arranged in the pressing mechanism of the supporting mechanism drives the pressing assembly connected thereto to approach the surface to be welded of the cylindrical battery until the pressing assembly abuts and presses against the surface to be welded of the cylindrical battery. Similarly, the buffer limiting mechanism arranged in the supporting mechanism also abuts against the surface to be welded of the cylindrical battery to buffer the pressing effect when the pressing assembly abuts against the surface to be welded of the cylindrical battery. The welding head arranged in the pressing mechanism follows the pressing mechanism to approach the surface to be welded of the cylindrical battery, and welds the surface to be welded of the cylindrical battery under the synchronous action of the pressing assembly and the buffer limiting mechanism, thereby accurately welding the surface to be welded of the cylindrical battery in a position-constrained state, effectively improving the problem of poor battery welding effect caused by manual intervention in the welding process of the surface to be welded of the cylindrical battery, effectively improving the welding stability of the cylindrical battery, and effectively improving the welding efficiency of the cylindrical battery, and effectively ensuring the battery production accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 Schematic diagram of the structure of a cylindrical battery welding device in one embodiment;

[0024] Figure 2 is a schematic diagram of the specific structure of the pressing component 210 in one embodiment;

[0025] Figure 3 2 is a schematic diagram of a specific structure of a guide member 2210 in one embodiment;

[0026] Figure 4 2 is a schematic diagram of a specific structure of the driving member 2220 in one embodiment;

[0027] Figure 5 is a schematic diagram of the specific structure of the pressure monitoring component 260 in one embodiment;

[0028] Figure 6 Schematic diagram of the specific structure of the first buffering and limiting assembly 310 or the second buffering and limiting assembly 320 in one embodiment. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0030] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0033] Figure 1 , is a structural diagram of a cylindrical battery welding device in one embodiment.

[0034] In this embodiment, if Figure 1 As shown, the cylindrical battery welding device includes a supporting mechanism 10 , a pressing mechanism 20 and a buffer limiting mechanism 30 .

[0035] The pressing mechanism 20 is disposed on the support mechanism 10 and includes a pressing assembly 210, a pressing drive assembly 220, a pressing buffer unit 230, a pressing bearing unit 240, a shielding gas unit 250, and a pressure monitoring assembly 260. The pressing assembly 210 is connected to the pressing drive assembly 220 and the shielding gas unit 250. The pressing drive assembly 220 can drive the pressing assembly 210 to abut against the surface of the cylindrical battery to be welded. The pressing buffer unit 230 is disposed between the pressing assembly 210 and the pressing bearing unit 240. The support mechanism 10 includes a supporting base plate 110 and a supporting vertical plate 120. The pressure monitoring assembly 260 is disposed on the supporting base plate 110 and can abut against the pressing assembly 210.

[0036] The support mechanism 10 may be a functional structure connected to the pressing mechanism 20 and the buffering and limiting mechanism 30, capable of providing a supporting force for the pressing mechanism 20 and the buffering and limiting mechanism 30. The pressing mechanism 20 may be a functional structure provided on the support mechanism 10, capable of approaching and abutting the surface of the cylindrical battery to be welded.

[0037] The pressing assembly 210 can be a functional assembly connected to the pressing buffer unit 230 and connected to the pressing drive assembly 220 through the pressing bearing unit 240, and can be synchronized with the pressing buffer unit 230 to approach and abut the surface to be welded of the cylindrical battery under the action of the pressing drive assembly 220. The pressing drive assembly 220 can be a functional assembly connected to the pressing assembly 210 through the pressing bearing unit 240, and can provide a driving effect for the pressing assembly 210 so that the pressing assembly 210 approaches and abuts the surface to be welded of the cylindrical battery. The pressing buffer unit 230 can be a functional unit connected to the pressing assembly 210 and the pressing bearing unit 240, and can provide a buffering effect for the pressing assembly 210 and the pressing bearing unit 240 when the pressing assembly 210 abuts the surface to be welded of the cylindrical battery. The shielding gas unit 250 can be a functional unit connected to the pressing assembly 210, arranged around the welding head, and can provide shielding gas for the welding head. The pressure monitoring component 260 may be a functional unit disposed on a side of the support base 110 away from the pressing buffer unit 230 and capable of abutting against the pressing component 210 to monitor the pressing force value of the pressing component 210 .

[0038] like Figure 2 As shown, the pressing assembly 210 includes a pressing cylinder inner layer 2110, a pressing cylinder outer layer 2120 and a pressing mounting seat 2130, the protective gas unit 250 and the pressing cylinder outer layer 2120 are arranged on the pressing mounting seat 2130, the pressing cylinder inner layer 2110 is connected to the pressing cylinder outer layer 2120, and the pressing cylinder inner layer 2110 and the pressing cylinder outer layer 2120 are both provided with a hollow gap, and the hollow gap is connected to the input end of the protective gas unit 250.

[0039] Through the cooperation of the various components in the pressing component 210 and the protective gas unit 250, the protective gas output by the protective gas unit 250 can be input into the interior of the pressing component 210 through the hollow gap during the process of the pressing component 210 pressing the surface to be welded of the cylindrical battery, thereby ensuring that the welding head blows in protective gas (such as nitrogen) in real time when welding the cylindrical battery, effectively improving the problem of welding fire, and at the same time taking away a certain amount of welding smoke to ensure welding accuracy.

[0040] The pressing drive assembly 220 includes a guide member 2210 and a drive member 2220. Figure 3 As shown, the guide member 2210 includes a guide rail pair 2211 and a guide rail mounting plate 2212, and the guide rail pair 2211 is arranged on the guide rail mounting plate 2212; Figure 4As shown, the driving member 2220 includes a slide cylinder 2221 and a cylinder mounting plate 2222. The slide cylinder 2221 is arranged on the cylinder mounting plate 2222. One end of the slide cylinder 2221 is connected to the pressing assembly 210. The slide cylinder 2221 can drive the pressing surface of the pressing assembly 210 to move in a direction parallel to the surface to be welded of the cylindrical battery.

[0041] By pressing the cooperation of each component in the drive component 220 and the pressing component 210, it is possible to ensure that the guide rail pair 2211 has sufficient available stroke, that is, to ensure that the pressing surface of the pressing component 210 is parallel to or away from the surface to be welded of the cylindrical battery, and to ensure that the pressing action on the surface to be welded of the cylindrical battery is uniform so that the welded part is evenly compressed, thereby meeting the welding requirements of cylindrical battery cells of different heights. In addition, it effectively expands the practicality and feasibility of the pressing mechanism 20.

[0042] The pressing buffer unit 230 includes a plurality of first compression elastic members 2310, which are arranged around the energy output end of the welding head. One end of any first compression elastic member 2310 is connected to the side of the pressing bearing unit 240 close to the pressing assembly 210, and the other end of any first compression elastic member 2310 is connected to the pressing assembly 210.

[0043] Through the cooperation of the components in the pressing buffer unit 230 and the pressing component 210, a pressing buffer effect can be provided for the pressing component 210 in the process of the pressing component 210 pressing the surface to be welded of the cylindrical battery, effectively improving the problem of direct rigid collision between the pressing surface of the pressing component 210 and the surface to be welded of the cylindrical battery, thereby realizing flexible pressing of the cylindrical battery.

[0044] like Figure 5 As shown, the pressure monitoring assembly 260 includes a pressure baffle 2610, a second compression elastic member 2620, a pressure mounting block 2630 and a pressure sensor 2640. The pressure sensor 2640 is arranged on the pressure mounting block 2630. One end of the second compression elastic member 2620 is connected to the pressure baffle 2610, and the other end of the second compression elastic member 2620 can abut against the pressure mounting block 2630.

[0045] Through the cooperation of the components in the pressure monitoring component 260 and the pressing component 210, real-time monitoring of the pressing component 210 pressing the surface to be welded of the cylindrical battery can be achieved, that is, the pressing data of the surface to be welded of the cylindrical battery (such as the tab) can be visualized, thereby improving the damage to the cylindrical battery due to excessive pressing or the unstable pressing of the cylindrical battery due to insufficient pressing, improving the reliability of pressing the surface to be welded of the cylindrical battery, and thus ensuring the subsequent welding effect of the cylindrical battery.

[0046] The buffering and limiting mechanism 30 is provided on the support mechanism 10 and is capable of contacting the surface of the cylindrical battery to be welded to cushion the pressing action of the pressing assembly 210 when contacting the surface of the cylindrical battery to be welded. The buffering and limiting mechanism 30 includes a first buffering and limiting assembly 310 and a second buffering and limiting assembly 320, which are symmetrically arranged on either side of the support plate 120.

[0047] The buffer limit mechanism 30 may be a functional structure provided on the support mechanism 10, capable of abutting the surface of the cylindrical battery to be welded before or synchronously with the pressing component 210 to buffer the pressing effect of the pressing component 210 when pressing the surface of the cylindrical battery to be welded. The first buffer limit component 310 may be a functional component provided on one side of the support vertical plate 120, capable of abutting the surface of the cylindrical battery to be welded before or synchronously with the pressing component 210 to buffer the pressing effect of the pressing component 210 on one side when pressing the surface of the cylindrical battery to be welded. The second buffer limit component 320 may be a functional component provided on the other side of the support vertical plate 120, capable of abutting the surface of the cylindrical battery to be welded before or synchronously with the pressing component 210 to buffer the pressing effect of the pressing component 210 on the other side when pressing the surface of the cylindrical battery to be welded.

[0048] like Figure 6 As shown, the first buffer stop assembly 310 and the second buffer stop assembly 320 each include a buffer 3301, a buffer stopper 3302, a hard stopper 3303, and a buffer mounting member 3304. The buffer 3301 and the hard stopper 3303 are disposed on the buffer mounting member 3304. One end of the buffer 3301 and the hard stopper 3303 are connected to the buffer stopper 3302, and the other end of the buffer 3301 and the hard stopper 3303 can abut the surface to be welded of the cylindrical battery. Optionally, the buffer 3301 can be an oil pressure buffer 3301, the buffer stopper 3302 can be a buffer stopper block, the hard stopper 3303 can be a socket head screw, and the buffer mounting member 3304 can be a buffer mounting plate.

[0049] Through the cooperation of the buffer 3301, the buffer limit part 3302 and the hard limit part 3303 in the first buffer limit component 310 and the second buffer limit component 320, the soft limit and hard limit of the buffer 3301 and the hard limit part 3303 are realized, that is, the pressing effect of the pressing component 210 when it abuts against the welding surface of the cylindrical battery can be buffered, while the range of movement of the pressing component 210 is effectively restricted, thereby effectively improving the accuracy of the pressing component 210 in pressing the cylindrical battery.

[0050] The welding head can be a welding structure provided on the pressing mechanism 20, which can follow the pressing mechanism 20 to approach the surface to be welded of the cylindrical battery and weld the surface to be welded of the cylindrical battery under the synchronous action of the pressing component 210 and the buffer limit mechanism 30.

[0051] It should be noted that the pressing component 210, the pressure monitoring component 260 and the pressing drive component 220 in the pressing mechanism 20 and the first buffer limit component 310 and the second buffer limit component 320 in the buffer limit mechanism 30 work together to form a flexible pressing structure with monitorable pressing action and adjustable pressing stroke, that is, the process of the pressing component 210 pressing the surface to be welded of the cylindrical battery provides the pressing component 210 with a pressing buffering effect and the pressing effect on the surface to be welded of the cylindrical battery is uniform so that the welded part is evenly compressed, while effectively improving the accuracy of the pressing component 210 pressing the cylindrical battery, thereby improving the welding stability of the cylindrical battery and improving the welding efficiency of the cylindrical battery, effectively ensuring the battery production accuracy.

[0052] The present application also provides a processing device, which includes the cylindrical battery welding device as described in the above embodiment.

[0053] The division of the modules in the above cylindrical battery welding device is only for illustration. In other embodiments, the cylindrical battery welding device can be divided into different modules as needed to complete all or part of the functions of the above cylindrical battery welding device.

[0054] The cylindrical battery welding device and processing equipment provided in the above embodiments, when welding the cylindrical battery, the pressing drive component arranged in the pressing mechanism of the supporting mechanism drives the pressing component connected thereto to approach the surface to be welded of the cylindrical battery until the pressing component abuts and presses against the surface to be welded of the cylindrical battery. The buffer limiting mechanism also arranged in the supporting mechanism abuts against the surface to be welded of the cylindrical battery to buffer the pressing effect when the pressing component abuts against the surface to be welded of the cylindrical battery. The welding head arranged in the pressing mechanism follows the pressing mechanism to approach the surface to be welded of the cylindrical battery, and welds the surface to be welded of the cylindrical battery under the synchronous action of the pressing component and the buffer limiting mechanism, thereby accurately welding the surface to be welded of the cylindrical battery in a position-constrained state, effectively improving the problem of poor battery welding effect caused by manual intervention in the welding process of the surface to be welded of the cylindrical battery, effectively improving the welding stability of the cylindrical battery, and effectively ensuring the welding efficiency of the cylindrical battery, effectively ensuring the battery production accuracy, and having important economic value and promotion and practical value.

[0055] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A cylindrical battery welding device, characterized in that: include: Support mechanism; A pressing mechanism is provided on the supporting mechanism, the pressing mechanism comprising a pressing assembly and a pressing drive assembly, the pressing assembly being connected to the pressing drive assembly, and the pressing drive assembly being capable of driving the pressing assembly to abut against the surface to be welded of the cylindrical battery; A buffering and limiting mechanism is provided on the supporting mechanism and can abut against the surface of the cylindrical battery to be welded to buffer the pressing effect of the pressing component when it abuts against the surface of the cylindrical battery to be welded; The welding head is arranged on the pressing mechanism and can follow the pressing mechanism to approach the surface to be welded of the cylindrical battery.

2. The cylindrical battery welding device according to claim 1, characterized in that: The pressing mechanism further includes a pressing buffer unit and a pressing bearing unit, and the pressing buffer unit is arranged between the pressing assembly and the pressing bearing unit.

3. The cylindrical battery welding device according to claim 2, characterized in that: The pressing buffer unit includes a plurality of first compression elastic members, which are arranged around the energy output end of the welding head. One end of any one of the first compression elastic members is connected to the side of the pressing bearing unit close to the pressing component, and the other end of any one of the first compression elastic members is connected to the pressing component.

4. The cylindrical battery welding device according to claim 1, characterized in that: The support mechanism includes a support vertical plate, and the buffering and limiting mechanism includes a first buffering and limiting assembly and a second buffering and limiting assembly. The first buffering and limiting assemblies are symmetrically arranged on both sides of the support vertical plate.

5. The cylindrical battery welding device according to claim 4, characterized in that: The first buffer limit assembly and the second buffer limit assembly both include a buffer, a buffer limit part, a hard limit part and a buffer mounting part. The buffer and the hard limit part are arranged on the buffer mounting part. One end of the buffer and the hard limit part is connected to the buffer limit part, and the other end of the buffer and the hard limit part can abut against the surface to be welded of the cylindrical battery.

6. The cylindrical battery welding device according to claim 1, characterized in that: The pressing mechanism also includes a protective gas unit, and the pressing assembly includes a pressing cylinder inner layer, a pressing cylinder outer layer and a pressing mounting seat. The protective gas unit and the pressing cylinder outer layer are arranged on the pressing mounting seat, and the pressing cylinder inner layer is connected to the pressing cylinder outer layer. The pressing cylinder inner layer and the pressing cylinder outer layer are both provided with a hollow gap, and the hollow gap is connected to the input end of the protective gas unit.

7. The cylindrical battery welding device according to claim 6, characterized in that: The pressing drive assembly includes a guide member and a driving member, the guide member includes a guide rail pair and a guide rail mounting plate, the guide rail pair is arranged on the guide rail mounting plate, the driving member includes a slide cylinder and a cylinder mounting plate, the slide cylinder is arranged on the cylinder mounting plate, one end of the slide cylinder is connected to the pressing assembly, and the slide cylinder can drive the pressing surface of the pressing assembly to move in a direction parallel to the surface to be welded of the cylindrical battery.

8. The cylindrical battery welding device according to claim 1, characterized in that: The pressing mechanism includes a pressing buffer unit, the supporting mechanism also includes a supporting base plate, and the pressing mechanism also includes a pressure monitoring component. The pressure monitoring component is arranged on a side of the supporting base plate away from the pressing buffer unit, and the pressure monitoring component can abut against the pressing component.

9. The cylindrical battery welding device according to claim 8, characterized in that: The pressure monitoring assembly includes a pressure baffle, a second compression elastic member, a pressure mounting block and a pressure sensor. The pressure sensor is arranged on the pressure mounting block. One end of the second compression elastic member is connected to the pressure baffle, and the other end of the second compression elastic member can abut against the pressure mounting block.

10. A processing equipment, characterized in that, include: The cylindrical battery welding device according to any one of claims 1 to 9.

Images