Battery cell welding jig

Abstract

The utility model relates to the technical field of welding, in particular to a battery cell welding jig which comprises a bottom plate and a support perpendicular to the bottom plate, an adjusting block and two symmetrically-distributed positioning plates are placed on the top face of the bottom plate, the positioning plates and the adjusting block move in the first direction and the second direction respectively, and the adjusting block penetrates through the support to abut against the positioning plates. The positioning plate and the adjusting block are perpendicular to each other to form a placing area, the support is provided with a lifting limiting block and a clamping block fixedly connected with the limiting block, the clamping block moves in the third direction, and the clamping block is parallel to the bottom plate. The adjusting block and the positioning plate above the bottom plate move in the first direction and the second direction respectively, so that the size of the placement area is adjusted and controlled according to different battery cells, meanwhile, the limiting block can drive the clamping block to move in the third direction, the clamping block can be adjusted according to the battery cells with different heights, manual handheld fixing operation is replaced, and the working efficiency is improved. Accurate positioning of the battery cell is guaranteed, and laser welding can be matched to improve the welding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a battery core welding jig. Background Art

[0002] With the advancement of technology and the improvement of environmental awareness, the secondary utilization of battery cells has also been widely used and promoted, and it is also an important environmental protection and resource recycling measure.

[0003] For some battery cells with deformed upper studs in the middle, which make them unable to adapt to the overall bundling welding method, they can be improved by welding the poles to achieve secondary utilization. The first thing to do is to ensure the accurate positioning of the battery cells. At present, the battery cells are usually positioned and welded by manual hand-holding. Although manual positioning can adjust the direction of the battery cells according to welding requirements and achieve a certain degree of fine welding improvement, manual operation will inevitably produce certain errors over a long period of time, and the efficiency is low, and it is easy to cause damage to the battery cells again. Utility Model Content

[0004] The purpose of the utility model is to provide a battery core welding jig, which aims to solve the technical problems that secondary battery cells are positioned for welding by manual hand-held fixation, and long-term manual operation is bound to produce certain errors, low efficiency, and easily cause damage to the battery cells again.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A battery core welding fixture comprises a base plate and a bracket perpendicular to the base plate, an adjustment block and two symmetrically distributed positioning plates are placed on the top surface of the base plate, the positioning plates and the adjustment block move in a first direction and a second direction respectively, the adjustment block passes through the bracket and abuts against the positioning plate, the positioning plate and the adjustment block are perpendicular to each other to form a placement area, the bracket is equipped with a liftable limit block and a clamping block fixedly connected to the limit block, the clamping block moves in a third direction, and the clamping block and the base plate are parallel to each other.

[0007] The utility model is further configured as follows: each positioning plate is provided with at least two mutually parallel grooves, each groove is provided with a first clamping groove penetrating the positioning plate, and the bottom plate is provided with at least two rows of parallel mounting holes, and the mounting holes correspond to the first clamping grooves.

[0008] The utility model is further configured as follows: the regulating block comprises two symmetrically distributed stop plates and a transverse plate arranged between the two stop plates, the height of the stop plates is greater than the height of the transverse plate, and the transverse plate is plugged with the bracket.

[0009] The utility model is further configured as follows: the transverse plate is provided with at least two second slots passing through, the bottom plate is provided with at least two fixing holes, the second slots correspond to the fixing holes, a through hole is provided at the connection between the bottom of the bracket and the bottom plate, and the transverse plate passes through the through hole.

[0010] The utility model is further configured as follows: a slope is arranged at one end of the bottom plate away from the bracket.

[0011] The utility model is further configured as follows: two card blocks are provided and are symmetrical to each other, one end of each card block is provided with a notch, and the notches between the two card blocks face each other to form an inner card opening.

[0012] The utility model is further configured as follows: two symmetrical side surfaces of the limit block are respectively provided with a first accommodating groove and a protrusion, the protrusion is provided with a second accommodating groove, and the first accommodating groove is communicated with the second accommodating groove.

[0013] The utility model is further configured as follows: the other end of each clamping block is fixedly connected with a stop block, the stop block is slidably connected with the limit block, and the stop block is accommodated in the first accommodating groove, and the clamping block passes through the second accommodating groove and is fixedly connected with the stop block.

[0014] The utility model is further configured such that: the total length of the two stop blocks is smaller than the length of the first accommodating groove.

[0015] The utility model is further configured as follows: a through limiting groove is arranged at the center of the bracket, and the protrusion is embedded in the limiting groove, so that the limiting block is slidably connected with the bracket.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model includes a base plate and a bracket perpendicular to the base plate, an adjustment block and two symmetrically distributed positioning plates are placed on the top surface of the base plate, the positioning plates and the adjustment block move in a first direction and a second direction respectively, the adjustment block passes through the bracket and abuts against the positioning plate, the positioning plate and the adjustment block are perpendicular to each other to form a placement area, the bracket is equipped with a liftable limit block and a card block fixedly connected to the limit block, the card block moves in a third direction, and the card block is parallel to the base plate. The application moves the adjustment block and the positioning plate above the base plate in the first direction and the second direction respectively to adjust the size of the placement area for different battery cells, and at the same time the limit block can drive the card block to move in the third direction to achieve the card block being able to be pressed for battery cells of different heights, thereby replacing the manual hand-held fixing operation, ensuring the accurate positioning of the battery cells, and improving the welding efficiency. In addition, it can also assist in realizing the secondary use of the battery cells after laser welding to reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the bottom plate and the bracket in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the adjustment block in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the positioning plate in the utility model;

[0023] Figure 5 It is a structural schematic diagram of a limiting block in the utility model from one perspective;

[0024] Figure 6 It is a structural schematic diagram of the limit block in the utility model from another perspective;

[0025] Figure 7 It is a schematic diagram of the installation structure of the limit block and the clamping block in the utility model.

[0026] The reference numerals in the above drawings are as follows:

[0027] 1-base plate, 11-mounting hole, 12-fixing hole, 13-slope;

[0028] 2- bracket, 21- through hole, 22- limiting groove;

[0029] 3-adjusting block, 31-stop plate, 32-transverse plate, 33-second slot;

[0030] 4-positioning plate, 41-groove, 42-first slot;

[0031] 5-Placement area;

[0032] 6-limiting block, 61-first receiving groove, 62-protrusion, 63-second receiving groove;

[0033] 7-block, 71-notch, 72-internal bayonet, 73-stop block;

[0034] A-first direction, B-second direction, C-third direction. DETAILED DESCRIPTION

[0035] In the description of the embodiments of the present application, the term "at least two" refers to more than two (including two), and similarly, "multiple" refers to more than two (including two). The technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features. The orientation or positional relationship indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "vertical", "top", "bottom", "inside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying 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 embodiments of the present application.

[0036] In order to solve the problems raised in the above background technology, the inventor has designed a battery core welding jig after in-depth research. The following is a detailed explanation with reference to the accompanying drawings.

[0037] like Figures 1 to 7 As shown, a battery core welding fixture includes a base plate 1 and a bracket 2 perpendicular to the base plate 1, an adjusting block 3 and two symmetrically distributed positioning plates 4 are placed on the top surface of the base plate 1, the positioning plates 4 and the adjusting block 3 move along a first direction A and a second direction B respectively, the adjusting block 3 passes through the bracket 2 and abuts against the positioning plate 4, the positioning plate 4 and the adjusting block 3 are perpendicular to each other to form a placement area 5, the bracket 2 is equipped with a liftable limit block 6 and a clamping block 7 fixedly connected to the limit block 6, the clamping block 7 moves along a third direction C, and the clamping block 7 is parallel to the base plate 1.

[0038] Specifically, including but not limited to, the base plate 1 can fix the entire fixture on the platform of the welding equipment, and the battery cell is fixed so as to be welded by laser. The base plate 1 and the bracket 2 are both configured as rectangular structures. In this embodiment, the base plate 1 and the bracket 2 are configured as an integrated structure, and of course, they can also be configured as a split structure according to needs to facilitate the disassembly and assembly of the fixture; two symmetrical positioning plates 4 are distributed on both sides of the base plate 1, and there is a gap between the two positioning plates 4, the placement area 5 is the battery cell placement area 5, and the two positioning plates 4 and the adjustment block 3 are respectively fitted with the side surfaces of the battery cell to clamp the battery cell.

[0039] Through the above scheme, the adjustment block 3 and the positioning plate 4 above the bottom plate 1 move in the first direction A and the second direction B respectively, so as to adjust the size of the placement area 5 for different battery cells. At the same time, the limit block 6 can drive the card block 7 to move in the third direction C, so that the card block 7 can be pressed for different battery cells, and precise positioning can be achieved under different battery cell lengths, widths and heights, thereby replacing manual hand-held fixing operations, ensuring precise positioning of the battery cells, and improving welding efficiency. In addition, it can also assist in the secondary use of the battery cells after laser welding to reduce resource waste.

[0040] As an improved specific implementation, the first direction A, the second direction B and the third direction C are respectively set along the horizontal direction, the longitudinal direction and the vertical direction of the bottom plate 1.

[0041] Specific examples include but are not limited to: Figure 1 As shown, the definition of the above directions is based on looking directly at the front of the bracket 2 and the base plate 1, then, the first direction A is the lateral direction of the base plate 1 so that the jig can adapt to the width of different battery cells, the second direction B is the longitudinal direction of the base plate 1 so that the jig can adapt to the length of different battery cells, and the third direction C is the vertical direction of the base plate 1 so that the jig can adapt to the height of different battery cells.

[0042] As an improved specific implementation, each positioning plate 4 is provided with at least two mutually parallel grooves 41, each groove 41 is provided with a first card slot 42 passing through the positioning plate 4, and the base plate 1 is provided with at least two rows of parallel mounting holes 11, and the mounting holes 11 correspond to the first card slot 42.

[0043] Specifically, including but not limited to, a groove 41 is opened along an edge of the positioning plate 4 away from the battery cell. In this embodiment, three grooves are opened and evenly distributed. A first card groove 42 penetrating the positioning plate 4 is opened in the center of each groove 41. The first card groove 42 is connected to the groove 41. The first card groove 42 is an arc groove, and corresponds to the mounting hole 11 opened on the bottom plate 1. Four rows of mounting holes 11 are opened on the bottom plate 1. At this time, the positioning plate 4 can be fixed to the bottom plate 1 by screws, so that the positioning plate 4 is fixed after it is in a precise position. Then the positioning plate 4 is arranged on the left and right sides above the bottom plate 1, and the corresponding positioning blocks on the bottom plate 1 are also symmetrically provided with four rows of mounting holes 11; it should be noted here that the sharp corner of the positioning plate 4 facing the battery cell can be set to an arc angle to avoid directly scratching the outer wall of the battery cell. In addition, the fitting side of the positioning plate 4 and the battery cell can also be treated with a smooth surface, and the contact surface can be smoothed, such as polishing, grinding, etc.; this can reduce the surface roughness, reduce the friction between the positioning plate 4 and the battery cell, and thus reduce the risk of scratches.

[0044] Through the above scheme, the relative arrangement of the first card slot 42 and the mounting hole 11 enables the positioning plate 4 to move laterally above the base plate 1, and when the adjustment block 3 moves longitudinally, the positioning block can also be fixed according to one of the first card slots 42 and a row of mounting holes 11, and adjusted in cooperation with the adjustment block 3.

[0045] As an improved specific implementation, the adjustment block 3 includes two symmetrically distributed stop plates 31 and a cross plate 32 arranged between the two stop plates 31, the height of the stop plate 31 is greater than the height of the cross plate 32, and the cross plate 32 is plugged into the bracket 2.

[0046] Specifically, including but not limited to, in this embodiment, the stop plate 31 and the cross plate 32 are set as an integrated structure by welding, and of course, it can also be set as a split structure fixed by screws. After the cross plate 32 passes through the through hole 21, the stop plate 31 blocks the front and back to prevent the adjustment block 3 from falling off, and the height of the stop plate 31 is greater than the height of the through hole 21 or the cross plate 32.

[0047] As an improved specific embodiment, the cross plate 32 is provided with at least two second card grooves 33 passing through, the bottom plate 1 is provided with at least two fixing holes 12, the second card grooves 33 correspond to the fixing holes 12, and a through hole 21 is provided at the connection between the bottom of the bracket 2 and the bottom plate 1, and the cross plate 32 passes through the through hole 21.

[0048] Specifically, including but not limited to, the two second card slots 33 are parallel to each other and are arc-shaped slots, the base plate 1 is provided with two mounting holes 11 corresponding to the longitudinal movement direction of the second card slot 33, the cross plate 32 passes through the through hole 21 and is plugged into the bracket 2, and the adjustment block 3 can be fixed to the base plate 1 by screws to achieve precise positioning of the adjustment block 3.

[0049] Through the above solution, the second slot 33 of the adjusting block 3 corresponds to the mounting hole 11 of the base plate 1, so that the adjusting block 3 can be moved longitudinally above the base plate 1 and accurately fixed after being adjusted to a specified position.

[0050] As an improved specific implementation, a slope 13 is provided at one end of the base plate 1 away from the bracket 2. The setting of the slope 13 can be set to have a preliminary positioning function of the base plate 1 on the laser welding platform on the one hand, and can also be set to allow the battery cell to slide above the base plate 1 on the other hand, so as to avoid bumps when the battery cell is placed.

[0051] As an improved specific implementation, two clamping blocks 7 are provided and are symmetrical to each other. A notch 71 is provided at one end of each clamping block 7 , and the notches 71 between the two clamping blocks 7 face each other to form an inner clamping opening 72 .

[0052] Specifically, including but not limited to, a T-shaped notch 71 is provided on the side of one end of each card block 7, the two card blocks 7 are symmetrically arranged and the two notches 71 are arranged opposite to each other to form an inner card slot 72, the card block 7 can fit with the top surface of the battery cell, and the inner card slot 72 is used to accommodate the battery cell pole, so that the battery cell can be pressed and positioned by the card block 7, and the battery cell pole can be clamped and positioned by the card block 7.

[0053] Through the above solution, the two clamping blocks 7 are arranged so that the fixture can be fixed and adjusted in the vertical direction according to the height of the battery cell.

[0054] As an improved specific implementation, two symmetrical sides of the limit block 6 are respectively provided with a first accommodating groove 61 and a protrusion 62 , the protrusion 62 is provided with a second accommodating groove 63 , and the first accommodating groove 61 is communicated with the second accommodating groove 63 .

[0055] Specifically, including but not limited to, a protrusion 62 is provided on the front of the limit block 6 and a first receiving groove 61 is provided on the back, a second receiving groove 63 is provided at the center of the protrusion 62, the second receiving groove 63 passes through the protrusion 62, so that the first receiving groove 61 is connected to the second receiving groove 63, and a penetrating installation groove is provided on the upper and lower sides of the second receiving groove 63 on the protrusion 62, and the installation groove can fix the card block 7 when the card block 7 passes through the second receiving groove 63.

[0056] Through the above solution, the second receiving groove 63 can provide left and right position adjustment for the two buckles, and can be accurately positioned according to different battery cell poles.

[0057] As an improved specific implementation, the other end of each clamping block 7 is fixedly connected with a stop block 73, the stop block 73 is slidably connected to the limit block 6, and the stop block 73 is accommodated in the first accommodating groove 61, the clamping block 7 passes through the second accommodating groove 63 and is fixedly connected with the stop block 73, and the total length of the two stop blocks 73 is less than the length of the first accommodating groove 61.

[0058] Specifically, including but not limited to, the stop block 73 is set as a rectangular block, the first accommodating groove 61 is set as a rectangular structure, and the stop block 73 corresponds to the first accommodating groove 61. At this time, after the card block 7 passes through the second accommodating groove 63, the two stop blocks 73 are accommodated in the first accommodating groove 61, and each stop block 73 is provided with two upper and lower rows of holes, and the two rows of holes correspond to the two installation grooves. The stop block 73 and the limit block 6 can be fixed by screws, so as to realize the fixation of the card block 7. At the same time, the two stop blocks 73 accommodated in the first accommodating groove 61 can slide relative to each other, thereby driving the two card blocks 7 to move and changing the distance between the two card blocks 7.

[0059] Through the above solution, the first accommodating groove 61 can accommodate the stop block 73, and the stop block 73 can slide and be fixed relative to the limiting block 6, thereby driving the adjustment of the clamping block 7 to adapt to different battery cells.

[0060] As an improved specific implementation, a through limiting groove 22 is provided at the center of the bracket 2, and the protrusion 62 is embedded in the limiting groove 22, so that the limiting block 6 is slidably connected to the bracket 2.

[0061] Specifically, including but not limited to, the width of the limit groove 22 corresponds to the width of the protrusion 62, so that the protrusion 62 can be embedded in the limit groove 22, and the thickness of the protrusion 62 is the same as the thickness of the bracket 2, so that the protrusion 62 and one side of the bracket 2 are on the same plane, and at the same time, sliding grooves are provided on the bracket 2 on both sides of the limit groove 22, and at least two holes are provided on the sliding grooves corresponding to the part of the limit block 6 that fits the bracket 2. At this time, the limit block 6 can be fixed to the bracket 2 by screws, so that the limit block 6 is slidably connected to the bracket 2.

[0062] Through the above solution, the limit block 6 can move vertically relative to the bracket 2, thereby driving the stop block 73 and the clamping block 7 to move, thereby achieving precise positioning for different battery cell heights.

[0063] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A battery core welding jig, characterized in that: It includes a base plate and a bracket perpendicular to the base plate, an adjustment block and two symmetrically distributed positioning plates are placed on the top surface of the base plate, the positioning plates and the adjustment block move in a first direction and a second direction respectively, the adjustment block passes through the bracket and abuts against the positioning plate, the positioning plate and the adjustment block are perpendicular to each other to form a placement area, the bracket is equipped with a liftable limit block and a clamping block fixedly connected to the limit block, the clamping block moves in a third direction, and the clamping block and the base plate are parallel to each other.

2. The battery core welding jig according to claim 1, characterized in that: Each positioning plate is provided with at least two grooves parallel to each other, each groove is provided with a first slot penetrating the positioning plate, and the bottom plate is provided with at least two rows of parallel mounting holes corresponding to the first slots.

3. The battery core welding jig according to claim 2, characterized in that: The regulating block comprises two symmetrically distributed stop plates and a transverse plate arranged between the two stop plates, the height of the stop plate is greater than the height of the transverse plate, and the transverse plate is plugged into the bracket.

4. The battery core welding jig according to claim 3, characterized in that: The transverse plate is provided with at least two second slots passing through, the bottom plate is provided with at least two fixing holes, the second slots correspond to the fixing holes, a through hole is provided at the connection between the bottom of the bracket and the bottom plate, and the transverse plate passes through the through hole.

5. The battery core welding jig according to claim 4, characterized in that: A slope is arranged at one end of the bottom plate away from the bracket.

6. The battery core welding jig according to claim 1, characterized in that: The card blocks are provided in two pieces and are symmetrical to each other. A notch is provided at one end of each card block, and the notches between the two card blocks face each other to form an inner card slot.

7. The battery core welding jig according to claim 6, characterized in that: Two symmetrical side surfaces of the limit block are respectively provided with a first accommodating groove and a protrusion, the protrusion is provided with a second accommodating groove, and the first accommodating groove is communicated with the second accommodating groove.

8. The battery core welding jig according to claim 7, characterized in that: The other end of each of the clamping blocks is fixedly connected with a stop block, the stop block is slidably connected to the limit block, and the stop block is accommodated in the first accommodating groove, and the clamping block passes through the second accommodating groove and is fixedly connected to the stop block.

9. The battery core welding jig according to claim 8, characterized in that: The total length of the two stop blocks is smaller than the length of the first accommodating groove.

10. The battery core welding jig according to claim 9, characterized in that: A through limiting groove is arranged at the center of the bracket, and the protrusion is embedded in the limiting groove so that the limiting block is slidably connected with the bracket.

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