Shell welding jig

Abstract

The shell welding jig comprises a main plate body, sliding grooves and a containing groove are formed in the main plate body, a clamping assembly comprises clamping blocks, and the clamping blocks are connected into the corresponding sliding grooves in a sliding mode; the driving assembly comprises a driving rod and a driving block, the driving block is connected with the main plate body through an elastic piece, a driving hole is formed in the driving block, the driving rod is arranged in the driving hole in a penetrating mode and can move along the driving hole, the driving rod comprises a first rod part and a second rod part which are sequentially arranged, and the diameter of the first rod part is larger than that of the second rod part; the moving direction of the clamping blocks in the corresponding sliding grooves is perpendicular to the moving direction of the driving rod, the clamping blocks are driven by the driving assembly to move in the corresponding sliding grooves, and the clamping blocks are connected with driving blocks in the driving assembly. The welding quality and the production efficiency of products can be improved.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, and in particular to a housing welding fixture. Background Technology

[0002] In the battery production process, the battery casing needs to be assembled and welded with electrode components. During assembly and welding, welding fixtures are used to clamp and position the casing. However, existing welding fixtures are inconvenient to operate, have poor adaptability, and cannot guarantee high positioning accuracy, resulting in low product yield and low production efficiency after welding, which cannot meet production needs. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to improve the ease of operation and positioning accuracy of welding fixtures in the prior art, thereby improving the welding quality and production efficiency of products.

[0004] To solve the above-mentioned technical problems, the present invention provides a housing welding fixture, comprising,

[0005] The main board body is provided with a sliding groove and a receiving groove for accommodating the shell to be processed. The sliding groove is connected to the receiving groove and surrounds the periphery of the receiving groove.

[0006] A clamping assembly, the clamping assembly including clamping blocks, the clamping blocks and the slide grooves corresponding one-to-one, the clamping blocks being slidably connected in the corresponding slide grooves;

[0007] A drive assembly includes a drive rod and a drive block. The drive block is connected to the main body via an elastic element. The drive block has a drive hole. The drive rod passes through the drive hole and can move along the drive hole. The drive rod includes a first rod portion and a second rod portion arranged sequentially. The diameter of the first rod portion is larger than the diameter of the second rod portion.

[0008] The movement direction of each clamping block in its corresponding slide groove is perpendicular to the movement direction of the drive rod. Each clamping block is driven by a drive assembly and can move in its corresponding slide groove. Each clamping block is connected to a drive block in the drive assembly. When the housing to be processed is in a clamped state, the first rod in the drive assembly is located in the drive hole, and the clamping block abuts against the side wall of the housing to be processed. When the housing to be processed is in a detached state, the second rod in the drive assembly is located in the drive hole, and the clamping block disengages from the side wall of the housing to be processed.

[0009] In one embodiment of the present invention, the main board body is further provided with a guide groove corresponding to the slide groove, the guide groove and the corresponding slide groove are connected, the driving block includes a guide part, the guide part is movably disposed in the guide groove, the driving block is provided with the driving hole, the bottom surface of the guide groove is provided with a first positioning hole, the bottom end of the guide part is connected to one end of the elastic member, and the other end of the elastic member is inserted into the first positioning hole.

[0010] In one embodiment of the present invention, the drive block further includes a limiting part, the drive hole on the drive block passes through the guide part and the limiting part, and the limiting part is located outside the guide groove and mounted on the guide groove.

[0011] In one embodiment of the present invention, the width of the guide groove is not less than the width of the slide groove.

[0012] In one embodiment of the present invention, the guide portion is provided with elastic elements at both ends, and the elastic elements correspond one-to-one with the first positioning holes. One end of each elastic element is connected to the guide block, and the other end is inserted into the corresponding first positioning hole.

[0013] In one embodiment of the present invention, a cover plate is connected to the main body, and a main body groove is provided on the cover plate. The main body groove is connected to the receiving groove, and the cover plate is used to abut against the opening end on one side of the housing to be processed.

[0014] In one embodiment of the invention, the cover plate is further provided with a first notch, which is located in front of one of the clamping blocks and exposes the clamping block.

[0015] In one embodiment of the invention, the clamping assembly includes two clamping blocks, each of which is slidably connected to a corresponding groove, and the sliding directions of the two clamping blocks are perpendicular to each other.

[0016] In one embodiment of the present invention, the welding fixture further includes a first base body connected to one side of the main body. A pressure elbow is connected to the first base body. The pressure elbow includes a pressure head and a pressing assembly. The pressure head is driven by the pressing assembly to press down or lift up. The pressure head has a holding end to extend into the receiving groove. The holding end is provided with a through groove.

[0017] In one embodiment of the present invention, the pressing assembly includes a hinge seat and a first connecting rod. The hinge seat is connected to a first base body. The middle part of the first connecting rod is hinged to the hinge seat through a first plate body. One end of the first connecting rod is connected to a gripping part, and the other end is hinged to a clamping rod. The clamping rod is hinged to the hinge seat and clamps a vertical rod. The bottom end of the vertical rod is connected to the pressing head.

[0018] In one embodiment of the present invention, the welding fixture further includes a main base, and the bottom end of the main body is hinged to the main base via a rotating shaft.

[0019] In one embodiment of the present invention, the main base includes a base plate, and a first side plate and a second side plate are respectively provided on both sides of the base plate. The main body is located between the first side plate and the second side plate. A shaft hole is provided on both the first side plate and the second side plate. One end of the rotating shaft is located in the shaft hole of the first side plate, and the other end is located in the shaft hole of the second side plate.

[0020] In one embodiment of the present invention, both the first side plate and the second side plate are provided with arc-shaped grooves, and an auxiliary rod is connected to the main body. One end of the auxiliary rod is located in the arc-shaped groove of the first side plate and can slide along the arc-shaped groove, and the other end is located in the arc-shaped groove of the second side plate and can slide along the arc-shaped groove.

[0021] In one embodiment of the invention, at least two of the auxiliary rods are slidably connected in the same arcuate groove.

[0022] In one embodiment of the present invention, the groove wall of the receiving groove near the rotating shaft is a first wall surface, the first wall surface is a plane, and the first wall surface is inclined relative to the axis of the rotating shaft.

[0023] The technical solution of the present invention has the following advantages compared with the prior art:

[0024] The shell welding fixture described in this invention can conveniently achieve clamping and positioning of shell products, with good positioning accuracy, which helps to improve the welding quality and production efficiency of the products and greatly shorten the processing cycle. Attached Figure Description

[0025] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the welding fixture of the present invention;

[0027] Figure 2 yes Figure 1 The front view of the welding fixture shown;

[0028] Figure 3 yes Figure 1 Left view of the welding fixture shown;

[0029] Figure 4 yes Figure 1 Schematic diagram of the mainboard structure;

[0030] Figure 5 yes Figure 4 The front view of the motherboard shown;

[0031] Figure 6 This is a schematic diagram of the welding fixture after removing the main base and the main body in this invention;

[0032] Figure 7 This is a schematic diagram of the drive rod structure in this invention;

[0033] Figure 8 This is a schematic diagram showing the positions of the clamping components and the cover plate in this invention;

[0034] Figure 9 yes Figure 8 A schematic diagram of the structure shown from another angle;

[0035] Figure 10 yes Figure 8 Front view of the structure shown;

[0036] Figure 11 yes Figure 8 Rear view of the structure shown;

[0037] Figure 12 This is a schematic diagram of the clamping component in this invention;

[0038] Figure 13 yes Figure 12 Front view of the structure shown;

[0039] Figure 14 yes Figure 12 Rear view of the structure shown;

[0040] Figure 15 This is a schematic diagram of the material clamping elbow in this invention;

[0041] Figure 16 yes Figure 15 A schematic diagram showing another angle of the clamping elbow;

[0042] Explanation of reference numerals in the instruction manual:

[0043] 10. Main body; 101. Receiving groove; 1011. First bottom surface; 1012. First wall surface; 1013. Second wall surface; 102. Sliding groove; 103. Guide groove; 1031. First positioning hole; 1032. First through hole; 104. Pin hole; 105. Limiting pin; 106. First base;

[0044] 20. Clamping block;

[0045] 30. Drive assembly; 301. Drive rod; 3011. First rod portion; 30111. Elongated hole; 3012. Second rod portion; 302. Drive block; 3021. Drive hole; 3022. Guide portion; 3023. Limiting portion; 303. Elastic element;

[0046] 40. Cover plate; 401. Main groove; 402. First notch;

[0047] 50. Material clamping elbow; 501. Pressure head; 5011. Holding end; 50111. Through groove; 502. Lower pressing assembly; 5021. Hinge seat; 5022. First connecting rod; 5023. First plate; 5024. Clamping rod; 5025. Grip part; 50251. Arc-shaped surface; 5026. Vertical rod;

[0048] 60. Main base; 601. Base plate; 602. First side plate; 6021. Shaft hole; 6022. Arc groove; 603. Second side plate;

[0049] 70. Rotating shaft; 80. Auxiliary rod; 90. Housing to be processed; 901. Open end; 100. Electrode plate; Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present disclosure or its application or use.

[0051] In the description of this invention, it should be understood that the terms "vertical," "upper," "lower," "top," "side," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] In the battery production process, the battery casing needs to be assembled and welded with electrode components. During assembly and welding, a welding fixture is required to clamp and position the casing. However, existing welding fixtures are inconvenient to operate and have poor positioning accuracy, resulting in low product yield and low production efficiency after welding. In view of this, this embodiment provides a casing welding fixture to improve the above problems, enhance welding positioning accuracy and production efficiency, and shorten the processing cycle while ensuring product quality.

[0054] The structure of the welding fixture of the present invention will be further described below with reference to specific embodiments.

[0055] Example 1

[0056] See Figures 1-7 This embodiment discloses a housing welding fixture, which includes a main body 10, a clamping assembly, and a driving assembly 30, etc.

[0057] The main body 10 is provided with a sliding groove 102 and a receiving groove 101 for accommodating the housing 90 to be processed. The sliding groove 102 is connected to the receiving groove 101 and surrounds the periphery of the receiving groove 101.

[0058] The clamping assembly includes a clamping block 20, which corresponds one-to-one with a slide groove 102. The clamping block 20 is slidably connected in the corresponding slide groove 102 so that the housing 90 to be processed can be clamped or released by the sliding of the clamping block 20.

[0059] like Figures 6-7 As shown, the drive assembly 30 includes a drive rod 301 and a drive block 302. The drive block 302 is connected to the main body 10 through an elastic member 303. The drive block 302 is provided with a drive hole 3021. The drive rod 301 passes through the drive hole 3021 and can move along the drive hole 3021. The drive rod 301 includes a first rod portion 3011 and a second rod portion 3012 arranged sequentially along the movement direction of the drive rod 301. The diameter of the first rod portion 3011 is larger than the diameter of the second rod portion 3012.

[0060] The movement direction of the clamping block 20 in the corresponding slide groove 102 is perpendicular to the movement direction of the drive rod 301. The clamping block 20 is driven by the corresponding drive assembly 30 and can move in the corresponding slide groove 102. One end of the clamping block 20 is connected to the drive block 302 in the drive assembly 30, and the other end is used to abut against the housing 90 to be processed.

[0061] When the housing 90 to be processed is in a clamped state, the first rod portion 3011 in the drive assembly 30 is located in the drive hole 3021, and the clamping block 20 abuts against the side wall of the housing 90 to be processed. When the housing 90 to be processed is in a detached state, the second rod portion 3012 in the drive assembly 30 is located in the drive hole 3021, and the clamping block 20 disengages from the side wall of the housing 90 to be processed.

[0062] Specifically, when the drive rod 301 is pushed, since the diameter of the first rod portion 3011 in the drive rod 301 is larger than the diameter of the second rod portion 3012, when the first rod portion 3011 moves into the drive hole 3021, it will drive the drive block 302 to move downward, thereby driving the corresponding clamping block 20 to move downward, so that the clamping block 20 is clamped on the side wall of the housing 90 to be processed. At this time, the elastic element 303 is in a compressed state, and the housing 90 to be processed is clamped. When the drive rod 301 is pulled back in the opposite direction, so that the second rod portion 3012 with a smaller diameter moves into the drive hole 3021, the elastic element 303 springs back to its original position, thereby driving the drive block 302 to move upward, thereby driving the corresponding clamping block 20 to move upward, so that the clamping block 20 is disengaged from the side wall of the housing 90 to be processed, so that the housing 90 to be processed is in a loose state.

[0063] The aforementioned elastic element 303 can be a spring, a sheet, or other element capable of elastic deformation.

[0064] The welding fixture with the above structure can easily move the clamping block 20 by pushing and pulling the drive rod 301, thereby achieving the clamping and positioning of shell-type parts. It has good positioning accuracy and effectively improves clamping efficiency, thus greatly shortening the processing cycle and improving production efficiency while ensuring product quality.

[0065] For ease of description, in this embodiment, the welding fixture has three directions: X, Y, and Z. The X and Y directions are perpendicular to the Z direction. The Z direction is the direction of movement of the drive rod 301, and the X and Y directions are the directions of movement of the two different clamping blocks 20, respectively.

[0066] In some implementations, such as Figures 4-5 As shown, the main body 10 is also provided with a guide groove 103 corresponding to the slide groove 102, and the guide groove 103 and the corresponding slide groove 102 are connected.

[0067] like Figure 6 As shown, the drive block 302 includes a guide portion 3022, which is movably disposed in the guide groove 103 to guide and limit the movement of the drive block 302 through the guide groove 103; the drive block 302 is provided with a drive hole 3021, and the drive rod 301 passes through the drive hole 3021 and can move in the Z direction within the drive hole 3021.

[0068] The bottom surface of the guide groove 103 is provided with a first positioning hole 1031. The bottom end of the guide part 3022 is connected to one end of the elastic member 303, and the other end of the elastic member 303 is inserted into the first positioning hole 1031.

[0069] When the drive rod 301 moves, it drives the guide part 3022 of the drive block 302 to move in the guide groove 103, thereby driving the clamping block 20 to move along the slide groove 102; it can be understood that when the guide part 3022 moves downward, the elastic element 303 is in a compressed state.

[0070] Furthermore, the drive block 302 also includes a limiting part 3023. The drive hole 3021 on the drive block 302 passes through the guide part 3022 and the limiting part 3023. The limiting part 3023 is located outside the guide groove 103 and is mounted on the guide groove 103 to restrict the movement of the drive block 302 in the Z direction.

[0071] To better ensure the motion stability of the drive rod 301, such as Figures 4-5As shown, the guide groove 103 is provided with a first through hole 1032 on the side facing the drive block 302 for the drive rod 301 to pass through. After passing through the first through hole 1032, the drive rod 301 passes through the drive hole 3021 of the drive block 302. The drive rod 301 can move back and forth (in the Z direction) in both the first through hole 1032 and the drive hole 3021. The diameters of the first through hole 1032 and the drive hole 3021 are both greater than the diameter of the first rod portion 3011 of the drive rod 301.

[0072] In some embodiments, the width L1 of the guide groove 103 is not less than the width L2 of the slide groove 102. Preferably, the width L1 of the guide groove 103 is greater than the width L2 of the slide groove 102 to facilitate the connection of the drive rod 301.

[0073] To ensure the stability of the movement of the drive block 302, such as Figures 12-14 As shown, elastic elements 303 can be provided at both ends of the guide part 3022. The elastic elements 303 correspond one-to-one with the first positioning holes 1031. One end of each elastic element 303 is connected to the guide block, and the other end is inserted into the corresponding first positioning hole 1031.

[0074] In some embodiments, the cover plate 40 is connected to the main board body 10, such as... Figures 8-11 As shown, a main body groove 401 is provided on the cover plate 40. The main body groove 401 is connected to the receiving groove 101. The cover plate 40 is used to abut against the opening end 901 on one side of the housing 90 to be processed, so that the plate area on the outer periphery of the main body groove 401 on the cover plate 40 is pressed against the housing, so as to better ensure the positioning of the housing in the Z direction and prevent the housing from moving in the Z direction.

[0075] Furthermore, the cover plate 40 is also provided with a first notch 402, which is located in front of a clamping block 20 so that the clamping block 20 can be exposed to facilitate observation of the clamping situation between the clamping block 20 and the processing housing.

[0076] In some cases, the clamping assembly can be configured with only one clamping block 20.

[0077] In other ways, such as Figure 1 , Figure 6 and Figure 12 As shown, the clamping assembly includes two clamping blocks 20, each of which is slidably connected to a corresponding slide groove 102, and the sliding directions of the two clamping blocks 20 are perpendicular to each other.

[0078] For example, the clamping assembly has two clamping blocks 20, the sliding directions of the two clamping blocks 20 are X direction and Y direction respectively, the X direction and Y direction are perpendicular to each other, and both the X direction and Y direction are perpendicular to the Z direction;

[0079] When the housing 90 to be processed is in the clamping state, the clamping block 20 in the X direction clamps the housing on the corresponding side wall of the receiving groove 101 to achieve clamping in the X direction, and the clamping block 20 in the Y direction clamps the housing on the corresponding side wall of the receiving groove 101 to achieve clamping in the Y direction, thereby effectively improving the clamping stability and reliability of the housing.

[0080] In some implementations, such as Figure 6 As shown, the first rod portion 3011 of the drive rod 301 is provided with an elongated hole 30111. A limiting pin 105 is slidably inserted into the elongated hole 30111. One end of the limiting pin 105 is connected to the main body 10, and the other end is inserted into the corresponding elongated hole 30111, so as to limit the movement stroke of the drive rod 301 by the limiting pin 105.

[0081] Specifically, such as Figures 1-4 As shown, the main board body 10 is provided with a pin hole 104, and the pin hole 104 and the limiting pin 105 correspond one-to-one. After the limiting pin 105 passes through the pin hole 104, it extends into the elongated hole 30111. As the drive rod 301 moves, the limiting pin 105 and the elongated hole 30111 move relative to each other. When the drive rod 301 moves to a certain position, the limiting pin 105 abuts against the arc end of the elongated hole 30111. At this time, the drive rod 301 is blocked and reaches the limit position of movement.

[0082] In some ways, such as Figure 1 , Figure 4 As shown, the welding fixture also includes a first base 106, which is connected to one side of the main body 10. A clamping elbow 50 is connected to the first base 106 to press small workpieces such as electrode sheets 100 that need to be welded to the housing into the corresponding position of the housing 90 to be processed, thereby facilitating subsequent welding operations to weld the two together.

[0083] like Figures 15-16 As shown, the clamping elbow 50 includes a clamping head 501 and a pressing assembly 502. The clamping head 501 is driven by the pressing assembly 502 to press down or lift up. The clamping head 501 has a holding end 5011 that extends into the receiving groove 101. The holding end 5011 is provided with a through groove 50111 to facilitate the insertion of the welding head or the injection of a laser beam to weld the workpiece held by the holding end 5011.

[0084] Understandably, when the pressing end 5011 of the pressing head 501 presses the workpiece of electrode sheet 100, it presses the workpiece through the pressing area located on both sides of the through groove 50111 on the pressing end 5011.

[0085] The aforementioned pressing assembly 502 may include a hinge seat 5021 and a first connecting rod 5022, wherein the hinge seat 5021 and the first seat body 106 are fixed together;

[0086] The middle part of the first connecting rod 5022 is hinged to the first plate 5023 and the hinge seat 5021, that is, one end of the first plate 5023 is hinged to the middle part of the first connecting rod 5022, and the other end is hinged to the hinge seat 5021.

[0087] One end of the first connecting rod 5022 is connected to the gripping part 5025, and the other end is hinged to the clamping rod 5024. The clamping rod 5024 is also hinged to the hinge seat 5021. The clamping rod 5024 clamps the upright rod 5026, and the bottom end of the upright rod 5026 is connected to the pressure head 501.

[0088] To make it easier to hold, the upper surface of the gripping part 5025 is provided with an arc-shaped surface 50251.

[0089] During operation, by pressing down or lifting the gripping part 5025, the pressure head 501 can be driven to press down or lift up, thereby achieving the clamping or loosening of the workpiece, which is convenient to operate.

[0090] In some embodiments, the above-mentioned welding fixture also includes a main base 60, and the bottom end of the main body 10 is hinged to the main base 60 via a rotating shaft 70, so that the main body 10 can be rotated at a certain angle, so as to flexibly adjust the welding angle according to the welding process requirements, thereby meeting the welding operation requirements under different working conditions and improving the adaptability of the fixture.

[0091] Furthermore, such as Figures 1-2 As shown, the main base 60 includes a base plate 601, and a first side plate 602 and a second side plate 603 are respectively provided on both sides of the base plate 601. The main body 10 is located between the first side plate 602 and the second side plate 603. A shaft hole 6021 is provided on both the first side plate 602 and the second side plate 603. One end of the rotating shaft 70 is located in the shaft hole 6021 of the first side plate 602, and the other end is located in the shaft hole 6021 of the second side plate 603.

[0092] The rotating shaft 70 and the shaft hole 6021 can be connected by a bearing.

[0093] The first side plate 602 and the second side plate 603 mentioned above can be arranged in parallel.

[0094] In some ways, such as Figure 1 , Figure 3 As shown, both the first side plate 602 and the second side plate 603 are provided with arc-shaped grooves 6022. An auxiliary rod 80 is connected to the main body 10. One end of the auxiliary rod 80 is located in the arc-shaped groove 6022 of the first side plate 602 and can slide along the arc-shaped groove 6022. The other end is located in the arc-shaped groove 6022 of the second side plate 603 and can slide along the arc-shaped groove 6022.

[0095] Furthermore, the center of the arc groove 6022 is located on the axis of the rotating shaft 70. This ensures that the center of the arc groove 6022 on the first side plate 602 coincides with the center of the shaft hole 6021, and that the center of the arc groove 6022 on the second side plate 603 coincides with the center of the shaft hole 6021, thus ensuring the stable rotation of the main body 10.

[0096] The combination of the arc groove 6022 and the auxiliary rod 80 can limit the swing angle of the main body 10 and prevent the swing angle from being too large.

[0097] In some preferred embodiments, at least two auxiliary rods 80 are slidably connected in the same arcuate groove 6022.

[0098] For example, such as Figure 3 As shown, the bottom of the main board body 10 is connected to two auxiliary rods 80. The two ends of each auxiliary rod 80 are respectively inserted into the arc-shaped grooves 6022 of the first side plate 602 and the second side plate 603. When the main board body 10 swings forward to a certain angle, it will be blocked by one auxiliary rod 80 to achieve a limit. When the main board body 10 swings backward to a certain angle, it will be blocked by the other auxiliary rod 80 to achieve a limit. This limits the forward and backward swing range of the main board body 10 and realizes the control of the swing stroke of the main board body 10.

[0099] In some implementations, such as Figure 1 and Figure 4 As shown, the groove wall of the receiving groove 101 near the rotating shaft 70 is a first wall surface 1012. The first wall surface 1012 is a plane and is inclined relative to the axis of the rotating shaft 70. The included angle between the first wall surface 1012 and the axis of the rotating shaft 70 is less than 90°. For example, it can be 10° to 60°, specifically 15°, 20°, 25°, 30°, 35°, 40°, 45°, etc.

[0100] In some ways, such as Figure 4 As shown, the receiving groove 101 also includes a second wall surface 1013 and a first wall surface 1012. The second wall surface 1013 and the first wall surface 1012 intersect. One clamping block 20 is disposed opposite to the first wall surface 1012, and the other clamping block 20 is disposed opposite to the second wall surface 1013. The bottom surface of the receiving groove 101 is a first bottom surface 1011, and the first bottom surface 1011 is disposed opposite to the cover plate 40.

[0101] For example, such as Figures 4-5As shown, the above-mentioned fixture has two clamping blocks 20. The first clamping block 20 and the first wall surface 1012 are arranged opposite each other in the X direction, and the second clamping block 20 and the second wall surface 1013 are arranged opposite each other in the Y direction. The first bottom surface 1011 and the cover plate 40 are arranged opposite each other in the Z direction. When clamping, the housing 90 to be processed is clamped between the first clamping block 20 and the first wall surface 1012 in the X direction, between the second clamping block 20 and the second wall surface 1013 in the Y direction, and between the first bottom surface 1011 and the cover plate 40 in the Z direction, thereby achieving reliable clamping of the housing 90 to be processed and preventing it from moving during subsequent welding.

[0102] The following example, taking the assembly and welding between the housing and the electrode sheet 100, illustrates the usage of the welding fixture. This welding fixture is equipped with two clamping blocks 20, each driven independently by a drive assembly 30. During use:

[0103] The housing 90 to be processed is placed in the receiving groove 101 of the main board 10. Then, the cover plate 40 is connected to the main board 10, so that the cover plate 40 presses the housing 90 against the first bottom surface 1011 of the receiving groove 101 to prevent it from moving in the Z direction. Next, the drive rod 301 in the drive assembly 30 is pushed, so that the first rod part 3011 with a larger diameter in the drive rod 301 moves into the drive hole 3021 of the drive block 302, thereby causing the drive block 302 to move, which in turn drives the clamping block 20 to move. The movement causes the first clamping block 20 in the X direction to move along the X direction until it abuts against the side wall of the housing 90 to be processed, so that the housing 90 to be processed is clamped between the first clamping block 20 and the first wall surface 1012 in the X direction; at the same time, the second clamping block 20 in the Y direction moves along the Y direction until it abuts against the side wall of the housing 90 to be processed, so that the housing 90 to be processed is clamped between the second clamping block 20 and the second wall surface 1013 in the Y direction, thus achieving the positioning of the housing 90 to be processed.

[0104] The electrode sheet 100 to be assembled is placed on the first wall surface 1012, and then the electrode sheet 100 is pressed onto the first wall surface 1012 of the housing 90 to be processed by the pressing head 501 of the pressing elbow 50, ensuring that the electrode sheet 100 will not move.

[0105] Then, the electrode sheet 100 and the housing 90 to be processed are welded together using laser welding equipment;

[0106] After welding is completed, first operate the first pressing device to lift the pressing head 501, and then pull the driving rod 301 in each driving component 30 in the opposite direction until the second rod part 3012 with a smaller diameter in the driving rod 301 enters the driving hole 3021. At this time, the driving block 302 moves outward under the elastic force of the corresponding elastic element 303, thereby causing each clamping block 20 to release the housing, and then the housing can be taken out.

[0107] The welding fixture described above enables efficient welding of the housing and electrode plates. The precise positioning of the housing and electrode plates effectively ensures the dimensional accuracy of the welded product, significantly improves the welding quality of the battery housing and electrode plates, increases product yield, facilitates clamping and operation, and greatly enhances welding efficiency.

[0108] The welding fixture described above is not only used for assembling and positioning battery casings and electrode plates, but can also be used for assembling and positioning other casing-type parts, without specific limitations.

[0109] All the above-mentioned optional technical solutions can be combined in any way to form optional embodiments of the present invention. That is, any number of embodiments can be combined to meet the needs of different application scenarios. All of these are within the protection scope of this application and will not be described in detail here.

[0110] It should be noted that the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A housing welding fixture, characterized in that: include, The main board body is provided with a sliding groove and a receiving groove for accommodating the shell to be processed. The sliding groove is connected to the receiving groove and surrounds the periphery of the receiving groove. A clamping assembly, the clamping assembly including clamping blocks, the clamping blocks and the slide grooves corresponding one-to-one, the clamping blocks being slidably connected in the corresponding slide grooves; A drive assembly includes a drive rod and a drive block. The drive block is connected to the main body via an elastic element. The drive block has a drive hole. The drive rod passes through the drive hole and can move along the drive hole. The drive rod includes a first rod portion and a second rod portion arranged sequentially. The diameter of the first rod portion is larger than the diameter of the second rod portion. The movement direction of each clamping block in its corresponding slide groove is perpendicular to the movement direction of the drive rod. Each clamping block is driven by a drive assembly and can move in its corresponding slide groove. Each clamping block is connected to a drive block in the drive assembly. When the housing to be processed is in a clamped state, the first rod in the drive assembly is located in the drive hole, and the clamping block abuts against the side wall of the housing to be processed. When the housing to be processed is in a detached state, the second rod in the drive assembly is located in the drive hole, and the clamping block disengages from the side wall of the housing to be processed.

2. The housing welding fixture according to claim 1, characterized in that: The main board body is also provided with a guide groove corresponding to the slide groove. The guide groove and the corresponding slide groove are connected. The driving block includes a guide part, which is movably disposed in the guide groove. The driving block is provided with the driving hole. The bottom surface of the guide groove is provided with a first positioning hole. The bottom end of the guide part is connected to one end of the elastic member, and the other end of the elastic member is inserted into the first positioning hole.

3. The housing welding fixture according to claim 2, characterized in that: The drive block also includes a limiting part, and the drive hole on the drive block passes through the guide part and the limiting part. The limiting part is located outside the guide groove and is mounted on the guide groove.

4. The housing welding fixture according to claim 2, characterized in that: The width of the guide groove is not less than the width of the slide groove.

5. The housing welding fixture according to claim 2, characterized in that: Both ends of the guide portion are provided with elastic elements, and each elastic element corresponds to a first positioning hole. One end of each elastic element is connected to the guide block, and the other end is inserted into the corresponding first positioning hole.

6. The housing welding fixture according to claim 1, characterized in that: A cover plate is connected to the main body, and a main body groove is provided on the cover plate. The main body groove is connected to the receiving groove, and the cover plate is used to abut against the opening end on one side of the shell to be processed.

7. The housing welding fixture according to claim 6, characterized in that: The cover plate is also provided with a first notch, which is located in front of one of the clamping blocks and exposes the clamping block.

8. The housing welding fixture according to claim 1, characterized in that: The clamping assembly includes two clamping blocks, each of which is slidably connected to a corresponding groove, and the sliding directions of the two clamping blocks are perpendicular to each other.

9. The housing welding fixture according to claim 1, characterized in that: It also includes a first base body connected to one side of the main body. A pressure elbow is connected to the first base body. The pressure elbow includes a pressure head and a pressing assembly. The pressure head is driven by the pressing assembly to press down or lift up. The pressure head has a holding end that extends into the receiving groove. The holding end is provided with a through groove.

10. The housing welding fixture according to claim 9, characterized in that: The pressing assembly includes a hinge seat and a first connecting rod. The hinge seat is connected to the first base body. The middle part of the first connecting rod is hinged to the hinge seat through a first plate body. One end of the first connecting rod is connected to a gripping part, and the other end is hinged to a clamping rod. The clamping rod is hinged to the hinge seat and clamps the upright rod. The bottom end of the upright rod is connected to the pressing head.

11. The housing welding fixture according to claim 1, characterized in that: It also includes a main base, and the bottom end of the main body is hinged to the main base via a pivot.

12. The housing welding fixture according to claim 11, characterized in that: The main base includes a base plate, and a first side plate and a second side plate are respectively provided on both sides of the base plate. The main body is located between the first side plate and the second side plate. A shaft hole is provided on both the first side plate and the second side plate. One end of the rotating shaft is located in the shaft hole of the first side plate, and the other end is located in the shaft hole of the second side plate.

13. The housing welding fixture according to claim 12, characterized in that: Both the first and second side plates are provided with arc-shaped grooves. An auxiliary rod is connected to the main body. One end of the auxiliary rod is located in the arc-shaped groove of the first side plate and can slide along the arc-shaped groove. The other end is located in the arc-shaped groove of the second side plate and can slide along the arc-shaped groove.

14. The housing welding fixture according to claim 13, characterized in that: At least two of the auxiliary rods are slidably connected in the same arcuate groove.

15. The housing welding fixture according to claim 11, characterized in that: The groove wall near the rotating shaft of the receiving groove is a first wall surface, which is a plane and is inclined relative to the axis of the rotating shaft.

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