Clamping mechanism, clamping device and welding equipment

Abstract

The clamping mechanism is used for the clamping device, the clamping mechanism is suitable for moving in the first direction to press a battery, the clamping mechanism comprises a base plate and a clamping assembly, the base plate is suitable for moving in the first direction, a containing hole is formed in the base plate, the clamping assembly is connected with the base plate, and the clamping assembly is used for clamping the battery. The clamping assembly is suitable for pressing the connecting piece and the pole of the battery, the connecting piece comprises a first area and a second area which are opposite to each other, the first area faces the pole of the battery, the second area faces the containing hole, and the efficiency of pressing the connecting piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery assembly, in particular to a clamping mechanism, a clamping device and welding equipment. Background Art

[0002] At present, the manufacture of battery modules for electric vehicles uses laser welding of connecting pieces to achieve series and parallel connection between battery cells. Before welding the connecting pieces, a clamping device is needed to fix and clamp the connecting pieces to ensure that the gap between the connecting pieces and the poles is controllable during the entire laser welding process. In the prior art, the clamping device needs to be installed on a motion mechanism, and then the motion mechanism drives the clamping device to move, making the action of the clamping device to clamp the connecting piece cumbersome, and this method has low working efficiency. Utility Model Content

[0003] The utility model aims to provide a clamping mechanism, a clamping device and welding equipment to solve the problem of low efficiency of clamping a connecting piece.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a clamping mechanism, wherein the clamping mechanism is adapted to move along a first direction to compress a battery, and the clamping mechanism comprises:

[0006] A substrate is suitable for moving along the first direction, and a receiving hole is provided on the substrate; a clamping assembly is connected to the substrate, and the clamping assembly is suitable for pressing the connecting piece against the pole of the battery, and the connecting piece includes a first area and a second area opposite to each other, the first area faces the pole of the battery, and the second area corresponds to the receiving hole.

[0007] In one embodiment, the clamping assembly also includes a connecting sleeve, an elastic member and a fixing member connected to each other. A receiving hole is opened on the substrate, one end of the fixing member is passed through the receiving hole, and the other end is connected to the connecting sleeve. The elastic member is sleeved on the fixing member. The connecting sleeve is located on the side of the substrate facing the pole, and the connecting sleeve is pressed against the second area accordingly.

[0008] In one embodiment, there are a plurality of the connecting sleeves, a plurality of the fixing members, each of the connecting sleeves is connected to two fixing members that are opposite and spaced apart, and each of the fixing members is sleeved with one of the elastic members.

[0009] In one embodiment, the receiving hole and the accommodating hole are arranged at intervals, and a receiving hole is opened on the connecting sleeve, and the receiving hole corresponds to the receiving hole.

[0010] In one embodiment, the number of the accommodating holes is multiple, and the multiple accommodating holes are arranged at intervals along the second direction. The number of the accommodating holes is multiple, and each of the accommodating holes is provided with an accommodating hole on both sides of the third direction. The number of the clamping assemblies is multiple, and two of the accommodating holes are arranged at intervals on both sides of the accommodating hole, and the first direction, the second direction and the third direction intersect each other.

[0011] In one embodiment, the plurality of accommodating holes are arranged at equal intervals along the second direction.

[0012] In a second aspect, the utility model further provides a clamping device, comprising a supporting mechanism and the clamping mechanism as described in the first aspect, wherein the clamping mechanism is connected to the supporting mechanism, and the supporting mechanism is suitable for driving the clamping mechanism to move in the first direction.

[0013] In one embodiment, the support mechanism includes a platform and a slide rail assembly connected to each other, the platform is connected to the slide rail assembly, and the slide rail assembly is connected to the base plate.

[0014] In one embodiment, the slide rail assembly includes a mounting plate and a slide rail, one end of the mounting plate is connected to one side of the base plate, the mounting plate is slidably connected to the slide rail, and the slide rail is connected to the platform.

[0015] In one embodiment, the clamping device further includes an adjusting member, the substrate is provided with a matching hole, the adjusting member is passed through the matching hole and connected to the platform, and the adjusting member is suitable for adjusting the moving distance of the substrate along the first direction.

[0016] In one embodiment, the clamping device further comprises a fastening member, wherein the fastening member is connected to the substrate and is suitable for fixing the substrate.

[0017] In a third aspect, the utility model further provides a welding device, comprising a welding device and the clamping device as described in the second aspect, wherein the welding device is connected to the clamping device, and the welding device is suitable for welding the connecting piece and the pole.

[0018] In one embodiment, the clamping device is suitable for arranging multiple batteries, the number of the accommodating holes is multiple, the number of the poles is multiple, the welding device includes an electrically connected laser and a positioning device, the positioning device is suitable for obtaining position data of the multiple accommodating holes, the position data of the multiple connecting plates and the position data of the multiple poles, and the laser is suitable for welding the multiple connecting plates and the multiple poles according to the data of the positioning device.

[0019] In one embodiment, the welding equipment further includes a robotic arm, which is connected to the laser and electrically connected to the positioning device, and is suitable for driving the laser to move according to data from the positioning device so that the laser beam passes through the receiving hole.

[0020] By setting a substrate and a clamping assembly, the substrate is suitable for moving along a first direction, the substrate is provided with a accommodating hole, the clamping assembly is connected to the substrate, the clamping assembly is suitable for pressing the connecting piece against the pole of the battery, the connecting piece includes a first area and a second area opposite to each other, the first area faces the pole of the battery, and the second area faces the accommodating hole, the clamping assembly does not need to be installed on the moving mechanism, the action of the clamping assembly pressing the connecting piece is reduced, thereby improving the efficiency of pressing the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic structural diagram of a clamping mechanism of an embodiment;

[0023] Figure 2 is a schematic structural diagram of a clamping assembly according to an embodiment;

[0024] Figure 3 is a structural schematic diagram of a welding device according to an embodiment;

[0025] Figure 4 is a front view of a platform of one embodiment;

[0026] Figure 5 is a top view of a platform of an embodiment;

[0027] Figure 6 is a first structural schematic diagram of a welding device according to an embodiment;

[0028] Figure 7 It is a second structural schematic diagram of a welding device according to an embodiment.

[0029] Description of reference numerals:

[0030] 10-clamping mechanism, 11-base plate, 111-accommodating hole, 112-accommodating hole, 113-matching hole, 12-clamping assembly, 121-connecting sleeve, 1211-accommodating hole, 122-elastic member, 123-fixing member, 13-adjusting member, 14-platform, 15-slide rail assembly, 151-mounting plate, 152-slide rail, 20-mechanical arm, 21-fastening member, X-first direction, Y-second direction, Z-third direction. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0034] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] At present, the manufacture of battery modules for electric vehicles uses laser welding of connecting pieces to achieve series and parallel connection between battery cells. Before welding the connecting pieces, a clamping device is needed to fix and clamp the connecting pieces to ensure that the gap between the connecting pieces and the poles is controllable during the entire laser welding process. In the prior art, the clamping device needs to be installed on a motion mechanism, and then the motion mechanism drives the clamping device to move, making the action of the clamping device to clamp the connecting piece cumbersome, and this method has low working efficiency.

[0036] In view of the above problems, the present invention provides a clamping mechanism 10. The clamping mechanism 10 is suitable for moving along a first direction X to compress the battery. Figure 1 and Figure 2 The clamping mechanism 10 includes a base plate 11 , a receiving hole 112 and a clamping assembly 12 .

[0037] The substrate 11 is suitable for moving along the first direction X, and the substrate 11 is provided with a receiving hole 112. Optionally, the substrate 11 is an insulating material with a certain thickness and rigidity. Optionally, the first direction X is the direction of movement between the substrate and the battery.

[0038] The clamping assembly 12 is connected to the base plate 11, and the clamping assembly 12 is suitable for pressing the connecting piece against the pole of the battery, and the connecting piece includes a first area and a second area facing each other, the first area faces the pole of the battery, and the second area faces the receiving hole 112. Optionally, the clamping assembly 12 cooperates with the base plate 11 and faces the battery cell, and the clamping assembly 12 is suitable for clamping the connecting piece and the pole.

[0039] By setting a substrate 11 and a clamping assembly 12, the substrate 11 is suitable for moving along a first direction X, the substrate 11 is provided with a receiving hole 112, the clamping assembly 12 is connected to the substrate 11, the clamping assembly 12 is suitable for pressing the connecting piece against the pole of the battery, the connecting piece includes a first area and a second area opposite to each other, the first area faces the pole of the battery, and the second area faces the receiving hole 112, the clamping assembly does not need to be installed on the moving mechanism, the action of the clamping assembly pressing the connecting piece is reduced, thereby improving the efficiency of pressing the connecting piece.

[0040] In one embodiment, please refer to Figure 1 and Figure 2 The clamping assembly 12 also includes a connecting sleeve 121, an elastic member 122 and a fixing member 123 connected to each other. A receiving hole 111 is opened on the substrate 11. One end of the fixing member 123 is inserted into the receiving hole 111, and the other end is connected to the connecting sleeve 121. The elastic member 122 is sleeved on the fixing member 123. The connecting sleeve 121 is located on the side of the substrate 11 facing the battery cell, and the connecting sleeve 121 is pressed against the second area.

[0041] Optionally, the connection sleeve 121 is a copper sleeve. Optionally, the surface of the connection sleeve 121 is polished, and the polishing method can be fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing, electrolytic polishing, etc. The surface of the connection sleeve 121 is polished to improve the smoothness of the surface of the connection sleeve 121 and avoid scratching the connection sheet and the battery cell.

[0042] Optionally, the fixing member 123 is a fixing straight rod bolt. Optionally, the elastic member 122 is a buffer spring.

[0043] Optionally, the receiving hole 111 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the receiving hole 111 may be, but is not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc.

[0044] Specifically, the above-mentioned arrangement of the connecting sleeve 121, the elastic member 122 and the fixing member 123 improves the structure of fixing the connecting piece, and eliminates the need for personnel to enter the interior of the machine for operation, thereby improving the automation level and safety level of fixing the connecting piece.

[0045] In one embodiment, please refer to Figure 1 and Figure 2 There are multiple connecting sleeves 121 and multiple fixing members 123 . Each connecting sleeve 121 is connected to two fixing members 123 that are opposite and spaced apart. Each fixing member 123 is sleeved with an elastic member 122 .

[0046] Optionally, there are multiple fixing members 123 , multiple elastic members 122 , and multiple accommodating holes 111 . The multiple accommodating holes 111 are arranged at intervals, and each fixing member 123 is arranged in a one-to-one correspondence with a accommodating hole 111 .

[0047] Optionally, each connecting sleeve 121 is connected to two fixing members 123, and each connecting sleeve 121 is connected to two elastic members 122. Optionally, each connecting sleeve 121 is connected to one fixing member 123, and each connecting sleeve 121 is connected to one elastic member 122.

[0048] Specifically, the above arrangement improves the matching relationship between the fixing member 123, the elastic member 122 and the receiving hole 111, and eliminates the need for personnel to enter the interior of the machine for operation, thereby improving the automation level and safety level of the connection piece fixation.

[0049] In one embodiment, please refer to Figure 1 and Figure 2 The receiving hole 112 is spaced apart from the receiving hole 111 , and a receiving hole 1211 is formed on the connecting sleeve 121 , and the receiving hole 1211 corresponds to the receiving hole 112 .

[0050] Optionally, the receiving hole 1211 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the receiving hole 1211 may be, but is not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc.

[0051] Specifically, the above arrangement makes the structure of the clamping assembly 12 compact.

[0052] In one embodiment, please refer to Figure 1 and Figure 2There are multiple accommodating holes 112, and the multiple accommodating holes 112 are arranged at intervals along the second direction Y. There are multiple accommodating holes 111, and each accommodating hole 112 is provided with an accommodating hole 111 on both sides of the third direction Z. There are multiple clamping components 12, and two accommodating holes 111 are arranged at intervals on both sides of the accommodating hole 112. The first direction X, the second direction Y and the third direction Z intersect each other.

[0053] Optionally, the number of the connecting sleeves 121 is the same as the number of the accommodating holes 112. Optionally, the number of the clamping assemblies 12 may be 5 to 25. Specifically, the number of the clamping assemblies 12 may be, but is not limited to, 5, 15, 20, and 25.

[0054] Specifically, the above arrangement improves the compression structure of the connecting piece and improves the compression efficiency of the connecting piece. Specifically, the above arrangement eliminates the need to repeat the compression action of the connecting piece multiple times during welding, which greatly improves the welding efficiency.

[0055] In one embodiment, please refer to Figure 1 and Figure 2 , a plurality of accommodating holes 112 are arranged at equal intervals along the second direction Y.

[0056] Optionally, the receiving hole 112 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the receiving hole 112 may be, but is not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc.

[0057] Specifically, the above-mentioned arrangement of the accommodating holes 112 improves the neatness of the arrangement of the accommodating holes 112 and improves the working efficiency of pressing the connecting piece.

[0058] Optionally, the spacing ranges from 5 mm to 100 mm, which is not limited in the present invention.

[0059] Specifically, the above-mentioned arrangement of the accommodating hole 112 facilitates automated installation and improves the working efficiency of pressing the connecting piece.

[0060] The embodiment of the utility model further provides a clamping device, comprising a supporting mechanism and the clamping mechanism 10 as described above, wherein the clamping mechanism 10 is connected to the supporting mechanism, and the supporting mechanism is suitable for driving the clamping mechanism 10 to move in a first direction X.

[0061] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The supporting mechanism includes a platform 14 and a slide rail assembly 15 connected to each other. The platform 14 is connected to the slide rail assembly 15, and the slide rail assembly 15 is connected to the base plate 11.

[0062] Optionally, the connection between the platform 14 and the slide rail assembly 15 may be, but not limited to, snap connection and riveting connection. Optionally, the connection between the slide rail assembly 15 and the base plate 11 may be, but not limited to, snap connection, riveting connection and welding connection.

[0063] Specifically, the above arrangement improves the stability level of the movement of the substrate 11 .

[0064] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The slide rail assembly 15 includes a mounting plate 151 and a slide rail 152 . One end of the mounting plate 151 is connected to one side of the base plate 11 . The mounting plate 151 is slidably connected to the slide rail 152 . The slide rail 152 is connected to the platform 14 .

[0065] Optionally, the slide rail 152 is fixedly connected to the platform 14, the mounting plate 151 is slidably connected to the slide rail 152, and the mounting plate 151 can move on the slide rail 152 along the first direction X. Optionally, the connection between the slide rail 152 and the platform 14 can be, but is not limited to, snap connection, riveting connection, welding connection, etc. Optionally, the connection between the slide rail 152 and the platform 14 is welding connection, and the specific welding method between the slide rail 152 and the platform 14 is brazing, using a metal material with a lower melting point than the slide rail 152 and the platform 14 as a brazing material, heating the brazing material to a temperature higher than the melting point of the brazing material and lower than the melting points of the slide rail 152 and the platform 14, using the liquid brazing material to wet the slide rail 152 and the platform 14, and filling the gap between the slide rail 152 and the platform 14, thereby achieving welding and fixing of the mounting plate 151 and the slide rail 152.

[0066] Optionally, the orthographic projection of the mounting plate 151 and the substrate 11 along the second direction Y has a connection angle, and the connection angle ranges from 30 degrees to 120 degrees. Optionally, the connection angle may be, but is not limited to, 30 degrees, 60 degrees, 90 degrees, and 120 degrees. Specifically, the above-mentioned arrangement of the mounting plate 151 and the substrate 11 improves the flexibility of the connection between the mounting plate 151 and the substrate 11.

[0067] Optionally, one end of the mounting plate 151 is connected to one end of the substrate 11 by screw hole connection, a connecting hole is provided on the substrate 11, a mounting hole is provided on the platform 14, the mounting hole and the connecting hole are arranged oppositely, and the welding equipment also includes a connecting screw, which is passed through the connecting hole and the mounting hole, and locks the mounting plate 151 and the substrate 11. Optionally, the connecting hole can be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the connecting hole can be, but not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc. Optionally, the mounting hole can be, but not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc. Optionally, the shape and size of the connecting hole and the mounting hole are the same. Optionally, there are multiple connection holes, and the multiple connection holes are arranged at intervals, there are multiple mounting holes, and the multiple mounting holes are arranged at intervals, there are multiple connection screws, and one connection screw is arranged in a one-to-one correspondence with one connection hole and one mounting hole. Optionally, the multiple connection holes are arranged at equal intervals along the second direction Y. Optionally, the multiple mounting holes are arranged at equal intervals along the second direction Y.

[0068] Optionally, one end of the mounting plate 151 may be connected to one end of the substrate 11 by, but not limited to, snap-fit ​​connection, riveting connection, and welding connection. Optionally, the mounting plate 151 and the substrate 11 are connected by welding, and the specific welding method between the mounting plate 151 and the substrate 11 is brazing, using a metal material with a lower melting point than the mounting plate 151 and the substrate 11 as a brazing material, heating the brazing material to a temperature higher than the melting point of the brazing material and lower than the melting points of the mounting plate 151 and the substrate 11, and using liquid brazing material to wet the mounting plate 151 and the substrate 11, filling the gap between the mounting plate 151 and the substrate 11, thereby achieving welding and fixing of one end of the mounting plate 151 and one end of the substrate 11.

[0069] Optionally, in the welding process of the connecting pieces, it is necessary to fix and tighten the connecting pieces at both ends of the module at the same time. The tops of the two substrates 11 can be fixed on the mounting plates 151 respectively. The welding equipment also includes a bridge piece, which is then connected to the two mounting plates 151. The relative distance between the substrates 11 is adjusted by the slide rail 152 and the adjustment piece 13, and the degree of compression of the battery cell can also be adjusted.

[0070] Optionally, the surface of the substrate 11 facing the battery cell is the first surface, and the first surface is polished. The polishing method can be fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing, electrolytic polishing, etc. The first surface is polished to improve the smoothness of the first surface and avoid scratching other parts. Optionally, the surface of the substrate 11 facing away from the battery cell is the second surface, and the second surface is polished. The polishing method can be fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing, electrolytic polishing, etc. The second surface is polished to improve the smoothness of the second surface and avoid scratching other parts.

[0071] Specifically, the above arrangement enables the substrate 11 to be flexibly moved in the first direction X, thereby completing the pressing action of the connecting piece, thereby improving the convenience of pressing the connecting piece.

[0072] Specifically, the above arrangement facilitates the installation, disassembly, maintenance, cleaning and repair of the clamping mechanism 10, thereby improving the convenience level of the clamping mechanism 10. Specifically, the welding equipment does not require personnel to enter the interior of the equipment, and there is no risk of work-related injuries, thereby improving the safety level. Specifically, the working efficiency of the welding equipment is improved by means of multiple battery cell clamping, multiple devices being used simultaneously, pre-installation, and avoiding cumbersome clamping actions during the welding process.

[0073] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The clamping device also includes an adjusting member 13. The substrate 11 is provided with a matching hole 113. The adjusting member 13 is passed through the matching hole 113 and connected to the platform 14. The adjusting member 13 is suitable for adjusting the distance that the substrate 11 moves along the first direction X.

[0074] Optionally, the matching hole 113 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the matching hole 113 may be, but is not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc.

[0075] Specifically, the above arrangement improves the matching structure between the adjusting member 13 and the base plate 11 and improves the convenience of pressing the connecting piece.

[0076] Optionally, the adjusting member 13 may be an adjusting screw rod, an adjusting bolt, etc. Optionally, the adjusting member 13 is movably connected to the base plate 11 .

[0077] Specifically, the above arrangement enables the substrate 11 to be flexibly moved in the first direction X, thereby completing the pressing action of the connecting piece, thereby improving the convenience of pressing the connecting piece.

[0078] In one embodiment, please refer to Figure 1 and Figure 2The clamping device further includes a fastening member 21 , which is connected to the substrate 11 and is suitable for fixing the substrate 11 .

[0079] Optionally, the fastening member 21 may be a handle. Optionally, there are multiple handles, and the multiple handles are arranged at intervals. Optionally, the multiple handles are arranged at equal intervals along the second direction Y.

[0080] Optionally, a plurality of fastening handles are provided at the lower end of the substrate 11, and the fastening handles are fixed to the substrate 11 by screws. When the handle switch is turned off, the module carrier can be fastened to adjust the uniformity of the upper and lower ends of the clamping device on the connecting piece. Optionally, the welding device also includes a fixing table, and the handles are connected to the substrate 11 and the fixing table, so as to fix the substrate 11.

[0081] The embodiment of the utility model further provides a welding device, comprising a welding device and the clamping device as described above, wherein the welding device is connected to the clamping device, and the welding device is suitable for welding a connecting piece and a pole.

[0082] In one embodiment, the clamping device is suitable for arranging multiple batteries, the number of accommodating holes 112 is multiple, the number of poles is multiple, the welding device includes an electrically connected laser and a positioning device, the positioning device is suitable for obtaining position data of multiple accommodating holes 112, position data of multiple connecting plates and position data of multiple poles, and the laser is suitable for welding multiple connecting plates and multiple poles according to the data of the positioning device.

[0083] Optionally, the laser can emit laser to weld multiple connecting pieces and multiple poles. During welding, one connecting piece corresponds to one pole.

[0084] Specifically, the above arrangement refines the process of welding multiple connecting pieces and multiple poles, and this arrangement improves the efficiency of welding the connecting pieces and the poles.

[0085] In one embodiment, please refer to Figure 6 and Figure 7 The welding equipment also includes a robot arm 20, which is connected to the laser. The robot arm 20 is electrically connected to the positioning device. The robot arm 20 is suitable for driving the laser to move according to data of the positioning device so that the laser beam passes through the accommodating hole 112.

[0086] Optionally, the robot arm 20 is electrically connected to the positioning device, and the robot arm 20 obtains the position data of the multiple receiving holes 112, the position data of the multiple connecting plates, and the position data of the multiple poles.

[0087] Optionally, the welding device can be a flying welding device. After the clamping mechanism 10 completes the clamping action of the connecting piece, it flows to the welding station along with the module on the assembly line, and then the robot arm 20 carries the flying welding device to complete the flying welding of the connecting piece.

[0088] Specifically, the above arrangement improves the efficiency of welding the connecting piece and the pole.

[0089] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship of the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 the present invention.

[0090] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the present invention still fall within the scope covered by the present invention.

Claims

1. A clamping mechanism, characterized in that: The clamping mechanism is adapted to move along a first direction to compress the battery, and the clamping mechanism comprises: A substrate, adapted to move along the first direction, the substrate being provided with a receiving hole; A clamping assembly is connected to the substrate, and the clamping assembly is suitable for pressing the connecting piece against the pole of the battery, the connecting piece includes a first area and a second area facing each other, the first area faces the pole of the battery, and the second area faces the receiving hole.

2. The clamping mechanism according to claim 1, characterized in that: The clamping assembly also includes a connecting sleeve, an elastic member and a fixing member connected to each other. A receiving hole is opened on the substrate. One end of the fixing member is inserted into the receiving hole, and the other end is connected to the connecting sleeve. The elastic member is sleeved on the fixing member. The connecting sleeve is located on a side of the substrate facing the pole, and the connecting sleeve is pressed against the second area accordingly.

3. The clamping mechanism according to claim 2, characterized in that: There are multiple connecting sleeves, multiple fixing members, each connecting sleeve is connected to two fixing members that are opposite and spaced apart, and each fixing member is sleeved with one elastic member.

4. The clamping mechanism according to claim 3, characterized in that: The receiving hole is spaced apart from the accommodating hole, and a receiving hole is provided on the connecting sleeve, and the receiving hole corresponds to the receiving hole.

5. The clamping mechanism according to claim 4, characterized in that: There are multiple accommodating holes, and the multiple accommodating holes are arranged at intervals along the second direction. There are multiple accommodating holes, and each of the accommodating holes is provided with an accommodating hole on both sides of the third direction. There are multiple clamping components, and two accommodating holes are arranged at intervals on both sides of the accommodating hole. The first direction, the second direction and the third direction intersect each other.

6. The clamping mechanism according to claim 5, characterized in that: The plurality of accommodating holes are arranged at equal intervals along the second direction.

7. A clamping device, characterized in that: It comprises a supporting mechanism and the clamping mechanism according to any one of claims 1 to 6, wherein the clamping mechanism is connected to the supporting mechanism, and the supporting mechanism is suitable for driving the clamping mechanism to move in the first direction.

8. The clamping device according to claim 7, characterized in that The supporting mechanism comprises a platform and a slide rail assembly connected to each other, wherein the platform is connected to the slide rail assembly, and the slide rail assembly is connected to the base plate.

9. The clamping device according to claim 8, characterized in that The slide rail assembly comprises a mounting plate and a slide rail, one end of the mounting plate is connected to one side of the base plate, the mounting plate is slidably connected to the slide rail, and the slide rail is connected to the platform.

10. The clamping device according to claim 9, characterized in that The clamping device further comprises an adjusting member, the substrate is provided with a matching hole, the adjusting member is passed through the matching hole and connected to the platform, and the adjusting member is suitable for adjusting the moving distance of the substrate along the first direction.

11. The clamping device according to claim 7, characterized in that: The clamping device further comprises a fastening member connected to the substrate, and the fastening member is suitable for fixing the substrate.

12. A welding device, characterized in that: It comprises a welding device and a clamping device as claimed in any one of claims 7 to 11, wherein the welding device is connected to the clamping device, and the welding device is suitable for welding the connecting piece and the pole.

13. The welding device according to claim 12, characterized in that The clamping device is suitable for arranging multiple batteries, the number of the accommodating holes is multiple, the number of the poles is multiple, the welding device includes an electrically connected laser and a positioning device, the positioning device is suitable for obtaining position data of the multiple accommodating holes, the position data of the multiple connecting plates and the position data of the multiple poles, and the laser is suitable for welding the multiple connecting plates and the multiple poles according to the data of the positioning device.

14. The welding device according to claim 13, characterized in that The welding equipment also includes a robot arm, which is connected to the laser and electrically connected to the positioning device. The robot arm is suitable for driving the laser to move according to data from the positioning device so that the laser beam passes through the receiving hole.

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