A positioner welding tool for new energy vehicle battery box

Abstract

The present invention relates to the technical field of welding tooling, and in particular to a positioner welding tooling for a battery box of a new energy vehicle, comprising a positioner connecting piece, the positioner connecting piece being arranged on both sides of a frame, a horizontal square pillar being arranged in the middle of the frame, support assemblies being arranged on both sides of the square pillar body, positioning assemblies and clamping assemblies being arranged on the support assemblies, support plates being arranged at both ends of the square pillar, crimping assemblies being arranged on the support plates, the crimping assemblies, the positioning assemblies and the clamping assemblies clamp and fix the battery box in an enclosed area, the welding tooling facilitates the installation and firm fixation of the battery box, reduces obstacles to some welding positions due to errors between the fixture and the battery box, and improves the accuracy and quality of welding.

Description

Technical Field

[0001] The present invention relates to the technical field of welding tooling, and in particular to a positioner welding tooling for a battery box of a new energy vehicle. Background Art

[0002] The design of the battery box of new energy vehicles usually includes key components such as the box body, internal reinforcement ribs and mounting frames on both sides, which together ensure the structural stability and functionality of the battery box body; the reinforcement ribs, mounting frames and box body are first spot welded to provide initial fixation, and then the battery box is placed on the welding tooling, and a welding robot is used to weld the joints between the reinforcement ribs, mounting frames and box body to provide a stronger and more durable connection to meet the performance requirements of the new energy vehicle battery box body under various working conditions.

[0003] The battery box and welding tooling are designed in an ideal state according to the digital model, but the battery box and welding tooling cannot reach the ideal state, and there will always be errors allowed by the process and manufacturing. The error makes it difficult to install the battery box on the welding tooling, reducing the efficiency of installation. In addition, the ideal welding tooling can weld various parts of the battery box, but due to the existence of errors, the tooling fixture hinders some welding positions of the battery box, affecting the welding work, and the fixtures on the traditional fixed welding tooling bring inconvenience to the adjustment and low work efficiency. In addition, during the welding process of the battery box, the welding tooling needs to be flipped at a certain angle to weld the top, bottom and sides of the battery box. During flip welding, it is easy for the welding tooling to not fix the battery box firmly, the clamping force is uneven, and the box is displaced during flipping, which affects the accuracy and quality of welding.

[0004] Therefore, the present invention provides a positioner welding tool for a new energy vehicle battery box to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a positioner welding tool for the battery box of new energy vehicles, so as to solve the problems that the errors between the clamps and the battery box on the existing fixed tooling, the battery box is inconvenient to install on the welding tooling, and the tooling clamps cause obstacles to some welding positions; when the welding tooling is flipped, the battery box is not firmly fixed and the clamping force is uneven, causing the box to move during flipping, thereby reducing the accuracy and quality of welding.

[0006] In order to solve the above technical problems, the present invention provides a positioner welding tool for a new energy vehicle battery box, including a positioner connecting part, the positioner connecting part is arranged on both sides of the frame, a horizontal square pillar is arranged in the middle of the frame, and support assemblies are respectively arranged on both sides of the square pillar body, and positioning assemblies and clamping assemblies are respectively arranged on the support assemblies, support plates are respectively arranged at both ends of the square pillar, and crimping assemblies are respectively arranged on the support plates. The crimping assembly, the positioning assembly and the clamping assembly clamp and fix the battery box in the enclosed area.

[0007] A further improvement of the technical solution of the present invention is that the battery box consists of a bottom wall, a first side wall, and a second side wall; the lower part of the first side wall is bent inward to form an inner folded wall, the inner folded wall is abutted against a mounting frame, and a plurality of reinforcing beams are cross-arranged on the bottom wall.

[0008] A further improvement of the technical solution of the present invention is that: the supporting assembly includes a mounting plate, a bottom plate is arranged on the edge of one side of the mounting plate body, the bottom plate body is a rectangular body, and a number of adjustment plates are arranged on the two adjacent side surfaces at the right angles at both ends of the bottom plate body, and the outer wall of the adjustment plate body is in contact with the L-shaped positioning angle ruler, the positioning angle ruler is fixed on the mounting plate, and two mounting holes are symmetrically arranged on the side of the mounting plate away from the bottom plate.

[0009] A further improvement of the technical solution of the present invention is that: the bottom surface of the mounting frame body is against the bottom plate, a plurality of grooves are arranged on the upper surface of the bottom plate body, through bolt holes are arranged in the grooves, a second bolt is arranged in the bolt hole, the end of the second bolt is screwed to the mounting plate, and the diameter of the bolt hole is at least 1 mm larger than the diameter of the second bolt.

[0010] A further improvement of the technical solution of the present invention is that the mounting hole is in an F shape, and the mounting hole includes a first channel and a second channel, a third channel connected to the second channel is provided, and the third channel is parallel to the first channel.

[0011] A further improvement of the technical solution of the present invention is that: the clamping assembly runs through the first channel, and the clamping assembly includes a clamping cylinder, a vertical fixing plate is arranged on the front side wall of the clamping cylinder, the fixing plate body and one side wall of the clamping cylinder form a right angle area, a fixing block is horizontally installed in the right angle area, an adjusting plate is abutted against the adjacent outer side wall of the fixing block body, and the adjusting plate abuts against the L-shaped positioning angle ruler; positioning holes are arranged through the four corners of the fixing block, a first bolt is arranged in the positioning hole, the first bolt is screwed to the mounting plate, and the diameter of the positioning hole is at least 1 mm larger than the diameter of the first bolt.

[0012] A further improvement of the technical solution of the present invention is that the clamping assembly also includes a clamping cylinder arranged in the first channel, the clamping cylinder is fixed on the fixed plate, a rotatably connected clamping arm is arranged on the top of the clamping cylinder, a plurality of adjusting plates are arranged on the bottom end surface of the clamping arm, a clamping block is arranged on the bottom surface of the adjusting plate, and the clamping block is in the shape of a right-angled trapezoid with a small top and a large bottom. The inclined surface of the right-angled trapezoid of the clamping block is located on the side close to the inner folded wall, and the clamping block is crimped at 1 / 2 of the width of the mounting frame.

[0013] A further improvement of the technical solution of the present invention is that: the bottom surface of the mounting plate is located on both sides of the two clamping assemblies and the positioning assemblies are symmetrically arranged, the positioning assemblies include a positioning angle ruler arranged on the bottom surface of the mounting plate, a number of adjustment plates are respectively arranged on the two inner walls of the positioning angle ruler, and a fixed block is arranged against the outer wall of the adjusting plate body; an L-shaped support plate is arranged on the outer wall of the fixed block, a positioning cylinder is arranged on the upper surface of the L-shaped support plate, and the positioning column passes through the positioning holes on the mounting plate, the base plate and the mounting frame in sequence, and is fixed by a nut at the end of the positioning column.

[0014] A further improvement of the technical solution of the present invention is that the crimping assembly includes an L-shaped pressing plate arranged on the upper surface of the support plate, a plurality of adjusting plates are arranged on the upper part of the inner wall of the L-shaped pressing plate, a pressing block is arranged against the outer wall of the adjusting plate, and the pressing block is against the outer wall of the second side wall.

[0015] A further improvement of the technical solution of the present invention is that at least two right-angle crimping parts are set at the upper edge of the bottom plate, the inner side surface of the vertical plate of the right-angle crimping part is set against an adjustment plate, and the end surface of the horizontal plate of the adjustment plate is against the side end surface of the mounting frame, which is used for positioning and pressing the battery box.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a positioner welding tool for a battery box of a new energy vehicle. The welding tool supports the bottom of the battery box through square pillars, and can support the mounting frame in the battery box by adjusting the position of the bottom plate in the supporting assembly, and presses the first side wall by adjusting the pressing force of the crimping assembly, and adjusts the distance between the right-angle crimping piece and the end face of the mounting frame so that the right-angle crimping piece presses the end face of the mounting frame, and then positions and fixes the battery box by adjusting the pressing assembly and the positioning assembly; prevents the allowable error between the battery box and the welding tool, so that the battery box can be conveniently fixed on the welding tool, improves the installation efficiency and installation accuracy, facilitates the welding of various parts of the battery box, improves the welding efficiency and fixing firmness, and prevents displacement during the flipping process, which affects the welding accuracy and quality.

[0018] 2. The present invention provides a positioner welding tool for a new energy vehicle battery box. In the support assembly, the bottom plate supports the mounting bracket. By loosening the bolts in the mounting holes in the bottom plate, the positioning holes are movable relative to the bolts because the diameter of the positioning holes is larger than the diameter of the bolts. Then, the bottom plate moves horizontally relative to the bolts, so that the bottom plate moves to a horizontal position, thereby reducing the misalignment between the mounting frame and the abutting surface of the bottom plate and improving the supporting and fixing effect of the bottom plate on the mounting frame. The horizontal displacement of the bottom plate is fine-tuned by adjusting the number of adjustment plates set on the inner side of the positioning angle ruler to fine-adjust and fix the position of the bottom plate, thereby improving the installation and fixing accuracy.

[0019] 3. The present invention provides a positioner welding tool for a new energy vehicle battery box, which presses and fixes the first side wall respectively through right-angle crimping parts to prevent errors in the first side wall of the battery box body during production; the innovative design of the right-angle crimping parts in the present application is a split structure. Compared with the existing one-piece right-angle crimping parts, there is a gap problem between the battery box and the right-angle crimping parts, which makes installation inconvenient, and the split right-angle crimping parts of the present application press the first side wall more firmly, and by adjusting the number of adjustment pieces on the right-angle crimping parts and increasing and decreasing the thickness, the battery box can be easily placed between the right-angle crimping parts on the welding tool; the clamping force of the right-angle crimping parts on the first side wall is enhanced to prevent the battery box from being displaced due to insufficient clamping force during welding, thereby ensuring the stability of the battery box during welding.

[0020] 4. The present invention provides a positioner welding tool for a new energy vehicle battery box. The welding tool clamps and fixes the mounting frame in the battery box through a clamping assembly. The bolts on the fixed block are loosened so that the fixed block can move relative to the bolts through the mounting holes. The fixed block drives the clamping cylinder on the fixed plate to move, and fine-tune the front, rear, left and right crimping positions of the clamping block on the fixed frame, thereby facilitating the welding robot to perform welding between the upper end face of the fixed frame and the inner folding wall.

[0021] 5. The present invention provides a positioner welding tool for a new energy vehicle battery box. A plurality of adjusting plates are arranged between the clamping arm and the clamping block in the clamping assembly. The number of adjusting plates is increased and the thickness is decreased to enhance the clamping force of the clamping block on the mounting frame, thereby improving the clamping effect of the clamping assembly on the mounting frame and ensuring the stability of the battery box during welding. Compared with the single fixing method of the clamping arm and the clamping block, and the errors existing in the clamping assembly itself, the clamping effects of various clamping assemblies on the mounting frame are inconsistent, and the clamping forces of various clamping components are insufficient, resulting in the mounting frame being not firmly clamped. By increasing and decreasing the number of adjusting plates, the clamping forces of various clamping components are improved to ensure the stability of the battery box.

[0022] 6. The present invention provides a positioner welding tool for a new energy vehicle battery box. The tool loosens the first bolt to allow the fixed block to move slightly relative to the bolt through the mounting hole, so that the fixed block drives the positioning cylinder and the positioning column on the L-shaped pressure plate to move horizontally, thereby preventing the positioning cylinder, the positioning column, the L-shaped pressure plate and the first bolt from having their own errors, which may affect the misalignment of the mounting plate, the positioning column, the mounting plate, the base plate and the mounting frame, and make it impossible for the positioning column to pass through the positioning holes on the mounting plate, the base plate and the mounting frame in sequence, thereby affecting the installation of the positioning assembly and reducing the efficiency of the welding work.

[0023] 7. The present invention provides a positioner welding tool for a new energy vehicle battery box, which enhances the clamping effect on the end face of the mounting frame by adjusting the number and thickness of the adjusting pieces provided on the inner side of the vertical plate of the right-angle crimping part, thereby preventing the battery box from undergoing horizontal displacement and improving the accuracy and quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is an overall schematic diagram of a positioner welding tooling for a battery box of a new energy vehicle;

[0026] Figure 2 It is a structural schematic diagram of a battery box;

[0027] Figure 3 It is a side view of the battery box;

[0028] Figure 4 is a schematic diagram of the structure of the support assembly;

[0029] Figure 5 It is a structural schematic diagram of the mounting hole;

[0030] Figure 6 It is a schematic diagram of the structure of the mounting plate and the clamping assembly;

[0031] Figure 7 It is a schematic diagram of the structure of the clamping assembly;

[0032] Figure 8 It is a schematic diagram of a fixed block structure;

[0033] Fig. 9 It is a schematic diagram of the structure of the mounting plate and the positioning assembly;

[0034] Fig.10 It is a schematic diagram of the structure of the positioning component;

[0035] Fig.11 It is a structural diagram of a fixed block;

[0036] Fig.12 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0037] Fig.13 for Figure 3 A schematic diagram of the enlarged structure of part B;

[0038] Fig.14 It is a structural schematic diagram of the regulating piece;

[0039] Figure numerals: 1, frame; 2, support assembly; 3, square pillar; 4, battery box; 5, positioning assembly; 6, clamping assembly; 7, support plate; 8, crimping assembly; 9, positioner connector; 10, right-angle crimping piece; 21, mounting plate; 22, bottom plate; 23, mounting hole; 24, positioning angle ruler; 25, adjustment sheet; 26, groove; 27, first bolt; 28, positioning hole; 42, reinforcement beam; 43, mounting frame; 231, first through channel; 232, second channel; 233, third channel; 51, L-shaped support plate; 52, positioning cylinder; 53, positioning column; 61, fixing block; 62, fixing plate; 63, clamping cylinder; 64, clamping arm; 65, clamping block; 66, angle reinforcement rib; 81, L-shaped pressure plate; 82, pressure block; 251, n-shaped hole; 261, second bolt; 401, first side wall; 402, second side wall; 403, bottom wall; 404, inner folding wall. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The present invention is further explained below in conjunction with specific implementation modes.

[0044] like Figure 1-Figure 14 As shown, the present embodiment provides a positioner welding tool for a battery box of a new energy vehicle, comprising a positioner connector 9, the positioner connector 9 is connected to a positioner (not shown in the figure), and the positioner connector 9 is arranged on both sides of a frame 1. The positioner can flip the frame 1 to an ideal welding position, so that a welding robot (not shown in the figure) can weld a battery box 4 on the frame 1; the battery box 4 is composed of a bottom wall 403, a first side wall 401, and a second side wall 402; the lower outer wall of the first side wall 401 is bent inward to form an inner folded wall 404, and a mounting frame 43 is arranged against the inner folded wall 404, and the mounting frame 43 is L-shaped as a whole, and a plurality of reinforcing beams 42 are cross-arranged on the bottom wall 403. The welding robot needs to weld between the reinforcing beam 42 and the bottom wall 403, between the upper end of the mounting frame 43 and the inner folded wall 404, and between the outer side of the bending part of the mounting frame 43 and the bottom surface of the bottom wall 403. Welding is performed; a transverse square pillar 3 is arranged in the middle of the frame 1, and the square pillar 3 is supported in the middle of the bottom wall 403 in the battery box 4. Support components 2 are respectively arranged on both sides of the main body of the square pillar 3. By adjusting the position of the bottom plate 22 on the support component 2, the bottom plate 22 is placed in a horizontal line, and the misalignment of the mounting frame 43 and the bottom plate 22 abutting against each other is reduced, and the supporting and fixing effect of the bottom plate 22 on the mounting frame 43 is improved. Positioning components 5 and clamping components 6 are respectively arranged on the support component 2, and support plates 7 are respectively arranged at both ends of the square pillar 3, and crimping components 8 are respectively arranged on the support plate 7; the crimping component 8 adjusts and clamps the second side wall 402 of the battery box 4, and the positioning component 5 and the clamping component 6 position, clamp and fix the mounting frame 43 in the battery box 4, so that the battery box 4 is stably fixed on the welding tooling, the installation is firm, the clamping force is uniform, and the quality and accuracy of welding are improved.

[0045] like Figure 4 , Figure 5 , Fig.11As shown, the support assembly 2 includes a mounting plate 21, and a bottom plate 22 is arranged on one side edge of the mounting plate 21 body. The bottom plate 22 body is a rectangular body. A number of adjusting pieces 25 are arranged on the two adjacent side surfaces at right angles at both ends of the bottom plate 22 body. At least one n-shaped hole 251 is arranged on the adjusting piece 25 body; the adjusting piece 25 is vertically adapted and plugged into the bolt through the n-shaped hole 251. The thickness of the adjusting piece 25 is set in a variety of 0.01~3 mm, and the adjusting piece 25 can be stacked and used; the outer wall of the adjusting piece 25 body is pressed against the L-shaped positioning angle ruler 24, and the positioning angle ruler 24 is fixed on the mounting plate 21. A horizontal bolt is arranged through the side of the positioning angle ruler 24, and the end of the bolt is screwed on the bottom plate 22; the setting of the positioning angle ruler 24 provides an installation reference for the bottom plate 22, which helps to improve the installation and positioning efficiency of the bottom plate 22. The bottom surface of the mounting frame 43 body is against the bottom plate 22, and a plurality of grooves 26 are arranged on the upper surface of the bottom plate 22 body, and a through bolt hole is arranged in the groove 26, and a second bolt 261 is arranged in the bolt hole, and the diameter of the bolt hole is at least 1 mm larger than the diameter of the second bolt 261, and the end of the second bolt 261 is screwed to the mounting plate 21, and the second bolt 261 is arranged in the groove 26, so as to improve the assemblability of the tooling and prevent the second bolt 261 from hindering the mounting of the mounting frame 43 on the bottom plate 22; specifically, by loosening the second bolt 261 and the horizontal bolt arranged through the side of the positioning angle ruler 24, since the diameter of the bolt hole corresponding to the second bolt 261 is at least 1 mm larger than the diameter of the second bolt 261 The bottom plate 22 can be moved at least 1 mm, and the parallelism of the bottom plate 22 can be adjusted to prevent the bottom plate 22 from tilting horizontally during installation, thereby improving the support stability of the bottom plate 22 on the mounting frame 43; in addition, by adjusting the number and thickness of the adjusting pieces 25, the gap between the positioning square 24 and the bottom plate 22 can be eliminated. The gap is the manufacturing error of the bottom plate 22 itself, thereby improving the clamping effect of the positioning square 24 on the bottom plate 22, clamping and fixing the two side surfaces of the bottom plate 22, preventing the bottom plate 22 from being displaced during the rotation welding process of the welding tooling, improving the installation stability of the bottom plate 22, and improving the stability of the bottom plate 22 supporting the mounting frame 43.

[0046] like Figure 5~Figure 8As shown, in this embodiment, two mounting holes 23 are symmetrically arranged on one side of the mounting plate 21 away from the bottom plate 22; the mounting hole 23 is in an F shape, and the mounting hole 23 includes a first channel 231 and a second channel 232, and a third channel 233 is arranged on the second channel 232, and the third channel 233 is parallel to the first channel 231, and the clamping component 6 runs through the first channel 231, and the clamping component 6 includes a clamping cylinder 63, and a vertical fixing plate 62 is arranged on the front side wall of the clamping cylinder 63, and the fixing plate 62 body and a side wall of the clamping cylinder 63 form a right angle area, and a fixing block 61 is horizontally installed in the right angle area, and an adjusting piece 25 is arranged against the adjacent outer side wall of the fixing block 61 body, and the adjusting piece 25 is arranged against the positioning angle ruler 24 of the L-shaped body; fixing pieces are arranged at the four corners of the fixing block 61 A positioning hole 28 is provided in the positioning hole 28, and the end of the first bolt 27 is screwed to the mounting plate 21. The diameter of the positioning hole 28 is at least 1 mm larger than the diameter of the first bolt 27; the clamping assembly 6 also includes a clamping cylinder 63 arranged in the first channel 231, the clamping cylinder 63 is fixed on the fixing plate 62, and a rotatably connected clamping arm 64 is provided on the top of the clamping cylinder 63, and a plurality of adjusting sheets 25 are provided on the bottom end surface of the clamping arm 64. A clamping block 65 is provided on the bottom surface of the adjusting sheet 25. The clamping block 65 is in the shape of a right-angled trapezoid with a small top and a large bottom. The inclined surface of the right-angled trapezoid of the clamping block 65 is located on the side close to the inner fold wall 404. The clamping block 65 is crimped to 1 / 2 of the width of the mounting frame 43, so that the clamping arm 64 can drive the clamping block 64 to flip from the lower part of the first side wall 401 to the inner bending part. Specifically, the clamping assembly 6 clamps and fixes the upper surface of the mounting frame 43 in the battery box 4, and by loosening the first bolt 27 on the fixing block 61, the fixing block 61 can be moved relative to the first bolt 27 through the positioning hole 28, and the fixing block 61 drives the clamping cylinder 63 on the fixing plate 62 to move at least 1 mm in the mounting hole 23, thereby adjusting the clamping block 65 to be crimped at least 1 mm forward, backward, left, and right on the mounting frame 43, so as to facilitate the welding robot to weld between the upper end surface of the mounting frame 43 and the inner folded wall 404, and adjust the welding work to be performed under ideal conditions. However, due to the allowable errors of the mounting frame 43 and the clamping block 65 themselves, the welding gun of the welding robot cannot weld according to the established route. A plurality of adjusting sheets 25 are arranged between the clamping arm 64 and the clamping block 65 in the clamping assembly. By increasing and decreasing the number of adjusting sheets 25, the thickness of the adjusting sheets 25 is increased and decreased, thereby enhancing the clamping force of the clamping block 65 on the mounting frame 43 and improving the clamping effect of the clamping assembly on the clamping block 65 on the mounting frame, thereby ensuring the stability of the battery box during welding. Compared with the single fixing method of the clamping arm 64 and the clamping block 65, and the errors existing in the clamping assembly itself, the clamping effects of various clamping assemblies on the mounting frame are inconsistent, resulting in the mounting frame being not firmly clamped. By increasing and decreasing the thickness of the adjusting sheets 25, the clamping effects of various clamping assemblies are made consistent, thereby increasing the stability of the mounting frame.

[0047] Furthermore, the fixing plate 62 is vertically arranged to the fixing block 61, and an angle reinforcement rib 66 is fixed at the angle between the fixing plate 62 and the fixing block 61. The angle reinforcement rib 66 is adapted to the third channel 233 to improve the connection strength between the fixing plate 62 and the fixing block 61 and improve the stability of the clamping assembly 6.

[0048] like Fig. 9 , Fig.10 As shown, in this embodiment, the bottom surface of the mounting plate 21 is located on both sides of the two clamping assemblies 6 and the positioning assemblies 5 are symmetrically arranged. The positioning assemblies 5 include a positioning angle ruler 24 arranged on the bottom surface of the mounting plate 21. The positioning angle ruler 24 is arranged to provide a positioning reference for the positioning assembly 5. A plurality of adjustment sheets 25 are respectively arranged on the two inner walls of the positioning angle ruler 24. The outer wall of the adjusting sheet 25 body is abutted against a fixing block 61. The four corners of the fixing block 61 are penetrated by first bolts 27. The first bolts 27 penetrate the positioning holes 28 of the fixing block 61 and are screwed to the mounting plate 21. An L-shaped support plate 51 is arranged on the outer wall of the fixing block 61. A positioning cylinder 52 is arranged on the upper surface of the L-shaped support plate 51. The positioning column 53 sequentially penetrates the positioning holes 28 on the mounting plate 21, the bottom plate 22 and the mounting frame 43, and is fixed by a nut at the end of the positioning column 53. Specifically, by loosening the first bolt 27, the fixed block 61 is allowed to move relative to the first bolt 27 through the positioning hole 28. The fixed block 61 drives the positioning cylinder 52 on the L-shaped pressure plate to move, thereby causing the positioning column 53 to move horizontally by at least 1 mm, thereby preventing the positioning holes on the mounting plate, the base plate and the mounting frame from being misaligned due to their own allowable errors. The positioning column cannot pass through the positioning holes on the mounting plate, the base plate and the mounting frame in sequence, affecting the installation of the positioning assembly and affecting the welding work and efficiency.

[0049] like Fig.11As shown, in this embodiment, the crimping assembly 8 includes an L-shaped pressing plate 81 arranged on the upper surface of the support plate 7, and a plurality of adjusting sheets 25 are arranged on the upper part of the inner wall of the L-shaped pressing plate 81. The outer wall of the adjusting sheet 25 is abutted against a pressing block 82. Bolts are penetrated through the L-shaped pressing plate 81, and the bolts are screwed to the pressing block 82. The length of the screw connection of the bolts and the pressing block 82 is less than the thickness of the pressing block 82, so that the bolts do not penetrate the pressing block 82, which facilitates the pressing block 82 to abut against the outer wall of the second side wall 402; the n-shaped hole 251 in the adjusting sheet 25 is determined according to the number of bolts to be inserted. If the number of bolts is 1, then the n-shaped hole 251 is 1, and if the number of bolts is 3, then the n-shaped holes 251 are 3. The adjusting sheet 25 is vertically adapted to be inserted into the bolt, and by reducing the number and thickness of the adjusting sheets 25, the battery box 4 can be smoothly placed on the square pillar 3 and the bottom plate 22, thereby preventing the gap between the battery box and the crimping assembly 8 Too small, inconvenient to install; improve the assemblability of the battery box 4 and the welding tooling, and then by increasing the number and thickness of the adjusting pieces 25, increase the pressing effect of the crimping assembly 8 on the end face of the second side wall 402, and prevent the first side wall of the battery box body from having errors during production; the innovative design of the right-angle crimping piece in the present application is a split structure. Compared with the existing one-piece right-angle crimping piece, there is a gap problem between the battery box and the right-angle crimping piece, which makes installation inconvenient, and the split right-angle crimping piece of the present application presses the first side wall more firmly, and by adjusting the number of adjusting pieces on the right-angle crimping piece and increasing and decreasing the thickness, it is convenient to place the battery box between the right-angle crimping pieces on the welding tooling; enhance the clamping force of the right-angle crimping piece on the first side wall, prevent the battery box from being displaced due to insufficient clamping force during welding, and ensure the stability of the battery box during welding.

[0050] like Fig.12 As shown, in this embodiment, at least two right-angle crimping parts 10 are set at the upper edge of the bottom plate 22, the inner side surface of the vertical plate of the right-angle crimping part 10 is set to abut against the adjustment plate 25, and the end face of the horizontal plate of the right-angle crimping part 10 is set to abut against the side end face of the mounting frame 43, which is used to position and press the battery box 4. Bolts are set through the vertical plate of the right-angle crimping piece 10, and the ends of the bolts are screwed to the outer wall of the bottom plate 22. By increasing the number and thickness of the adjusting pieces 25 on the right-angle crimping piece 10, it is convenient to place the battery box 4 between the right-angle crimping pieces 10 on the welding tooling. By reducing the number and thickness of the adjusting pieces 25 on the right-angle crimping piece 10, the clamping force of the right-angle crimping piece on the side end surface of the mounting frame 43 is enhanced to prevent the right-angle crimping piece 10 and the first side wall 401 from having errors therein, resulting in a gap between the right-angle crimping piece 10 and the first side wall 401, and the first side wall 401 is not firmly clamped. When the battery box is placed between the right-angle crimping pieces, the gap between the battery box and the right-angle crimping piece is too small, making installation inconvenient. In addition, the battery box is prevented from being displaced due to insufficient clamping force during welding, thereby ensuring the stability of the battery box during welding.

[0051] The present invention also provides a working principle of a positioner welding tool for a new energy vehicle battery box: first, loosen the second bolt 261 and the horizontal bolts penetrating the side of the positioning angle ruler 24 to place the bottom plate 22 horizontally, tighten the bolts, and then adjust the number and thickness of the adjustment pieces 25 on the adjacent sides at both ends of the bottom plate 22 to enhance the clamping force of the positioning angle ruler 24 on the bottom plate 22, so as to prevent the bottom plate 22 from not being tightly attached to the positioning angle ruler 24 within the allowable error range, so that the positioning angle ruler 24 has a poor clamping and positioning effect on the bottom plate 22, and the welding tool is displaced during the welding rotation angle process, thereby affecting the welding work; loosen the bolts on the crimping assembly 8 and the right-angle crimping piece 10 to make the crimping assembly 8 and the right-angle crimping piece 10 are all moved backward, that is, outward, to facilitate placing the battery box 4 on the bottom plate 22 and the square pillar 3, tighten the bolts to make the crimping assembly 8 abut against the second side wall 402, and insert the adjusting piece 25 between the L-shaped pressing plate 81 and the pressing block 82 in the crimping assembly 8 until the thinnest adjusting piece 25 cannot be inserted, and the pressing block 82 presses the second side wall 402 firmly; tighten the bolts to reduce the number of adjusting pieces 25, so that the end surface of the horizontal plate of the right-angle crimping piece 10 abuts against the side end surface of the mounting frame 43, and the vertical plate of the right-angle crimping piece 10 completely abuts against the side wall of the bottom plate 22, completing the fixation of the battery box 4 in four directions; adjust the displacement of the fixed block 61 in the positioning assembly 5, and then adjust the displacement of the positioning cylinder 52 , the positioning column 53 can pass through the positioning holes 28 on the mounting plate 21, the bottom plate 22 and the mounting frame 43 in sequence, and be fixed by a nut at the end of the positioning column 53, and then the number and thickness of the adjusting pieces 25 are adjusted so that the positioning angle ruler 24 clamps the fixing block 61 to complete the fixing of the positioning cylinder 52 after positioning; prevent the positioning cylinder 52 from being fixed on the mounting plate 21 by welding or a single position, making the installation of the positioning column 53 inconvenient, and the mounting plate 21, the bottom plate 22 and the mounting frame 43 have errors, so that the positioning column 53 cannot enter the positioning hole 28, and the mounting plate 21, the bottom plate 22 and the mounting frame 43 are positioned and installed, affecting the assembly tooling and welding work; operate the clamping cylinder 63, and the clamping block 65 is crimped onto the mounting frame 43 , adjust the position of the fixed block 61, the fixed block 61 drives the clamping cylinder 63 to move in the mounting hole 23, and then adjust the front, rear, left and right positions of the clamping block 65 on the mounting frame 43, so that it does not hinder the welding robot from welding the upper end surface of the mounting frame 43 and the inner folding wall 404. After the adjustment, by adjusting the adjusting piece 25 between the clamp arm 64 and the clamping block 65, the number of adjusting pieces 25 is increased and decreased, and the clamping force of the clamping block 65 on the mounting frame 43 is controlled to improve the clamping effect of the clamping assembly on the clamping block 65 on the mounting frame 43; the fixed block 61 adjusts the number and thickness of the adjusting pieces 25 so that the positioning angle ruler 24 presses the adjacent two side surfaces of the fixed block 61 to complete the fixation of the clamping assembly 6.The crimping assembly 8 and the right-angle crimping piece 10 fix the battery box 4 in four directions, and the positioning assembly 5 and the clamping assembly 6 fix the battery box 4 on the welding tooling, so that the battery box 4 will not be displaced when flipping and welding, and is firmly fixed, thereby improving the accuracy and quality of welding.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioner welding tool for a new energy vehicle battery box, characterized in that: The present invention comprises a positioner connecting member (9), the positioner connecting member (9) being arranged on both sides of the frame (1), a transverse square pillar (3) being arranged in the middle of the frame (1), support components (2) being arranged on both sides of the main body of the square pillar (3), a positioning component (5) and a pressing component (6) being arranged on the support component (2), support plates (7) being arranged at both ends of the square pillar (3), a crimping component (8) being arranged on the support plate (7), and the crimping component (8), the positioning component (5) and the pressing component (6) are used to press and fix the battery box (4) in the enclosed area; The support assembly (2) comprises a mounting plate (21), a bottom plate (22) is arranged at an edge of one side of the mounting plate (21) body, the bottom plate (22) body is a rectangular body, a plurality of adjustment plates (25) are arranged on two adjacent side surfaces at right angles at both ends of the bottom plate (22) body, the outer wall of the adjustment plate (25) body is in contact with an L-shaped positioning angle ruler (24), the positioning angle ruler (24) is fixed on the mounting plate (21), and two mounting holes (23) are symmetrically arranged on one side of the mounting plate (21) away from the bottom plate (22); The bottom surface of the mounting frame (43) body abuts against the bottom plate (22), a plurality of grooves (26) are arranged on the upper surface of the bottom plate (22), a through bolt hole is arranged in the groove (26), a second bolt (261) is arranged in the bolt hole, an end of the second bolt (261) is screwed to the mounting plate (21), and a diameter of the bolt hole is at least 1 mm larger than a diameter of the second bolt (261); The clamping assembly (6) passes through the first channel (231), wherein the clamping assembly (6) comprises a clamping cylinder (63), a vertical fixing plate (62) is arranged on the front side wall of the clamping cylinder (63), a body of the fixing plate (62) and a side wall of the clamping cylinder (63) form a right angle region, a fixing block (61) is horizontally installed in the right angle region, an adjusting plate (25) is arranged against an adjacent outer side wall of the body of the fixing block (61), and the adjusting plate (25) is arranged against an L-shaped positioning angle ruler (24); positioning holes (28) are arranged through the four corners of the fixing block (61), a first bolt (27) is arranged in the positioning hole (28), the first bolt (27) is screwed to the mounting plate (21), and the diameter of the positioning hole (28) is at least 1 mm larger than the diameter of the first bolt (27); The clamping assembly (6) further comprises a clamping cylinder (63) disposed in the first channel (231), the clamping cylinder (63) being fixed on the fixing plate (62), a rotatably connected clamping arm (64) being disposed on the top of the clamping cylinder (63), a plurality of adjustment sheets (25) being disposed on the bottom end surface of the clamping arm (64), a clamping block (65) being disposed on the bottom surface of the adjustment sheet (25), the clamping block (65) being in the shape of a right-angled trapezoid with a small top and a large bottom, the inclined surface of the right-angled trapezoid of the clamping block (65) being located on a side close to the inner folded wall (404), and the clamping block (65) being crimped to 1 / 2 of the width of the mounting frame (43); The bottom surface of the mounting plate (21) is symmetrically provided with positioning components (5) on both sides of the two clamping components (6), and the positioning components (5) include a positioning angle ruler (24) provided on the bottom surface of the mounting plate (21), and a plurality of adjustment plates (25) are respectively provided on the two inner side walls of the positioning angle ruler (24), and a fixing block (61) is provided against the outer side wall of the adjusting plate (25) body; an L-shaped support plate (51) is provided on the outer side wall of the fixing block (61), and a positioning cylinder (52) is provided on the upper surface of the L-shaped support plate (51); a positioning column (53) passes through the positioning holes (28) on the mounting plate (21), the bottom plate (22) and the mounting frame (43) in sequence, and is fixed at the end of the positioning column (53) by a nut.

2. A positioner welding tool for a new energy vehicle battery box according to claim 1, characterized in that: The battery box (4) is composed of a bottom wall (403), a first side wall (401), and a second side wall (402); the lower outer wall of the first side wall (401) is bent inward to form an inner folded wall (404), the inner folded wall (404) is provided against a mounting frame (43), and a plurality of reinforcing beams (42) are cross-arranged on the bottom wall (403).

3. The positioner welding tool for a new energy vehicle battery box according to claim 1 is characterized in that: The mounting hole (23) is in an F shape, and comprises a first channel (231) and a second channel (232). A third channel (233) is provided in communication with the second channel (232), and the third channel (233) is parallel to the first channel (231).

4. The positioner welding tool for a new energy vehicle battery box according to claim 1 is characterized in that: The crimping assembly (8) comprises an L-shaped pressing plate (81) arranged on the upper surface of the support plate (7), a plurality of adjusting plates (25) being arranged on the upper portion of the inner side wall of the L-shaped pressing plate (81), a pressing block (82) being arranged against the outer side wall of the adjusting plate (25), and the pressing block (82) being against the outer wall of the second side wall (402).

5. The positioner welding tool for a new energy vehicle battery box according to claim 1 is characterized in that: At least two right-angle crimping pieces (10) are disposed at the upper edges of the bottom plate (22), the inner side surfaces of the vertical plates of the right-angle crimping pieces (10) are disposed at the inner side surfaces thereof, and the end surfaces of the horizontal plates of the adjusting pieces (25) are disposed at the side end surfaces of the mounting frame (43), so as to position and press the battery box (4).

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