Hydraulic welding tool for battery box body

Abstract

The utility model discloses a hydraulic welding tool for a battery box body, which comprises a support frame, a fixed block I, an upper turnover air cylinder I and an adjusting mechanism are fixed on the support frame, a piston of each upper turnover air cylinder I is connected with an upper pressing block I, and the upper pressing block I is connected with a lower pressing block II. The adjusting mechanism comprises an adjusting air cylinder, two guide rails, a sliding plate, an inner side pressing block, a second upper overturning air cylinder and a second upper pressing oil cylinder, the second upper pressing oil cylinder, the second upper overturning air cylinder and the inner side pressing block are arranged on the sliding plate, and a second clamping air cylinder is further arranged on the sliding plate. A piston of the second clamping air cylinder is connected with an outer side pressing block opposite to one inner side pressing block, a piston of the second upper overturning air cylinder is connected with a second upper pressing block, the adjusting air cylinder and the two guide rails are arranged on the supporting frame, the sliding plate is connected between the two guide rails in a sliding mode, and a piston of the adjusting air cylinder is connected with the sliding plate. A piston of each second upper pressing oil cylinder is connected with a second upper buckle. According to the structure, the battery box bodies with different lengths can be compatibly clamped and used.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of stir friction welding equipment, in particular to a hydraulic welding tool for a battery box. Background Art

[0002] Friction stir welding equipment is widely used in the aluminum alloy manufacturing of carriages, wall panels, and bottom panels in rail transportation, the welding of automobile doors, electric vehicle battery boxes, warning covers, and body panels, the welding of ship ladders, side panels, and floors in ships, and the sealing welding of copper tubes. The material does not melt during welding with this equipment, and no defects such as pores, slag inclusions, and cracks will be generated. In addition, no protective gas or filling materials are required during the welding process. The residual deformation and residual stress after welding are small, and the joints are fine-grained forging structures with excellent mechanical properties and no pollution such as arc light, noise, and radiation.

[0003] like Figure 1 As shown, the friction stir welding equipment mainly welds the battery box by placing the battery frame 9 and the bottom plate 10 from top to bottom in sequence on the clamping fixture of the friction stir welding equipment, and then using the welding equipment on the friction stir welding equipment to weld. Due to the huge heat and deformation caused by the welding method of the equipment, effective clamping force is required. For example, patent number: 202022037340.5, the patent name is a battery box chassis annular seam welding fixture, including a support frame, multiple rotary clamping cylinders, multiple positioning cylinders, and multiple fixed blocks. The bottom plate of the battery box chassis is placed on the top surface of the support frame and each frame is spliced ​​around the bottom plate. The rotary clamping cylinder surrounds the outside of each frame, and the piston end of the rotary clamping cylinder is horizontally connected to the pressure rod. A pressure head is vertically fixed on the outer end of the pressure rod. The pressure head is pressed at the joint between the frame and the bottom plate. A positioning cylinder or a fixed block is fixed between two adjacent rotary clamping cylinders, and the fixed block is opposite to the positioning cylinder. The utility model uses multiple pressing heads to press the points to be welded on the battery box chassis, but this structure has the following problems:

[0004] Since the positions of each rotary clamping cylinder are fixed, once each rotary clamping cylinder is installed, it can only clamp battery boxes of one size. However, for some battery boxes, only the length changes but the width does not change, and the corresponding clamping tooling needs to be rewritten and set, which undoubtedly increases the processing cost of the equipment. Therefore, this structure cannot achieve universal compatibility with products and needs to be improved. Utility Model Content

[0005] The utility model aims to provide a hydraulic welding tool for a battery box, which solves the problem that the existing welding tool cannot be compatible with and clamp battery boxes of different lengths.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions: the utility model is a hydraulic welding tool for a battery box, including a support frame, on which are fixed a plurality of fixed blocks, a plurality of upward turning cylinders and an adjusting mechanism, the plurality of upward turning cylinders are installed at intervals on the left, rear and front sides of the upper surface of the support frame, and the piston of each upward turning cylinder is connected with an upper pressing block that presses the left, front and rear sides of the bottom plate above the battery frame, when the welding machine passes through the welding point, the upper pressing block flips outward away from the bottom plate, and the plurality of fixed blocks are evenly installed on the left, front and rear sides of the upper surface of the support frame, and the adjusting mechanism includes an adjusting cylinder, two guide rails, a slide plate, two inner pressing blocks, two upward turning cylinders, A rotating cylinder and multiple upper clamping cylinders are provided, the inner clamping block is used to abut against the inner wall of the right side of the battery frame, the upper clamping cylinder, the upper flipping cylinder and the inner clamping block are arranged on the slide, and a clamping cylinder is also arranged on the slide. The piston of the clamping cylinder is connected with an outer clamping block arranged opposite to one of the inner clamping blocks, and the piston of the upper flipping cylinder is connected with an upper clamping block for pressing the right side of the bottom plate above the battery frame. The adjusting cylinder and two guide rails are arranged on the supporting frame, and the slide is slidably connected between the two guide rails. The piston of the adjusting cylinder is connected to the slide, and the piston of each upper clamping cylinder is connected with an upper buckle for pressing the bottom plate above the battery frame.

[0007] Preferably, in order to improve the fixing and clamping effect on the frame, multiple upper clamping cylinders and multiple groups of side clamping assemblies are fixed on the support frame. The multiple upper clamping cylinders are arranged at intervals around the battery frame, and the piston of each upper clamping cylinder is connected to an upper buckle that is buckled on the battery frame. The multiple groups of side clamping assemblies are evenly spaced on the left, front and back of the upper surface of the support frame and are used to clamp the battery frame around.

[0008] Preferably, for ease of operation, each side clamping assembly includes a side clamping block 1, a side clamping block 2 arranged opposite to the side clamping block 1, and a clamping cylinder 1. The piston of the clamping cylinder 1 is connected to the side clamping block 1, and the oppositely arranged side clamping block 1 and side clamping block 2 cooperate to clamp the inside and outside of the side wall of the battery frame.

[0009] Preferably, the two guide rails are arranged in parallel, and a slider is fixed at the bottom of each of the slide plates, and the slider is slidably connected to one of the guide rails.

[0010] Preferably, in order to provide support and guidance, two parallel guide frames are provided on the support frame, and one or more guide rollers are rotatably connected to each guide frame. The rotation direction of the guide rollers is consistent with the movement direction of the slider, and the slider frame is placed on the guide rollers and can move on the guide rollers as the slider moves.

[0011] For easy installation, the bottom of each fixed block 1 is fixedly connected to the support frame through a positioning bracket, the bottom of each upper clamping cylinder 1 is fixedly connected to the support frame through a cylinder support 1, and the side of each upper flip cylinder 2 is fixed to the slide plate through a cylinder support 2.

[0012] In order to achieve the primary positioning function, two positioning cylinders are arranged on the front and rear sides of the support frame. The two positioning cylinders are arranged opposite to each other, and a positioning rod is connected to the piston of each positioning cylinder. The positioning rod is movably inserted into the positioning through hole on the side of the battery frame.

[0013] The utility model has the following beneficial effects: the structure changes the clamping diameter of the battery frame by adding an adjustable adjustment mechanism on one side of the support frame, and finally achieves compatible clamping operations on battery boxes of different lengths, which is convenient for subsequent welding work. There is no need to set different welding clamping tasks according to the battery box, which further reduces the processing cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the welding process of the battery box in the prior art in Example 1;

[0015] Figure 2 This is a schematic diagram of the structure of a battery box with a battery frame installed on a hydraulic welding tool in Example 1;

[0016] Figure 3 This is a schematic structural diagram of a hydraulic welding tool for a battery box in Example 1;

[0017] Figure 4 This is a schematic diagram of the connection structure between the upper pressing cylinder 1 and the upper buckle 1 in Example 1;

[0018] Figure 5 This is a schematic structural diagram of the side clamping assembly 1 in Example 1;

[0019] Figure 6 This is a schematic diagram of the connection structure between the fixing block 1 and the positioning bracket in Example 1;

[0020] Figure 7 This is a schematic diagram of the connection structure between the positioning cylinder and the positioning rod in Example 1;

[0021] Figure 8This is a schematic diagram of the connection structure between the upper turning cylinder 1 and the upper pressing block 1 in Example 1;

[0022] Fig. 9 It is a structural schematic diagram of the adjustment mechanism in Example 1;

[0023] Fig.10 The bottom structure of the adjustment mechanism in Example 1 is shown in FIG. Figure 2 ;

[0024] Fig.11 This is a schematic diagram of the structure in which multiple fixing blocks are installed in a ring shape on a support frame in Example 1.

[0025] Figure numerals: support frame 1, positioning cylinder 101, positioning rod 102, cylinder seat four 103, upper clamping cylinder one 2, cylinder support one 201, cylinder support two 202, fixing block one 3, positioning bracket 301, side clamping assembly one 4, side clamping block one 4-1, side clamping block two 4-2, connecting frame 4-21, clamping cylinder one 4-3, cylinder seat five 4-31, upper flip cylinder one 5, adjustment mechanism 6 , adjusting cylinder 6-1, two guide rails 6-2, slide plate 6-3, inner clamping block 6-4, upper flip cylinder two 6-5, upper clamping cylinder two 6-6, clamping cylinder two 6-7, outer clamping block 6-8, upper clamping block two 6-9, upper buckle two 610, slider 611, guide frame 612, guide roller 613, fixed block two 614, upper buckle one 7, upper clamping block one 8, battery frame 9, bottom plate 10. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figure 1-11As shown, a hydraulic welding tool for a battery box disclosed in this embodiment includes a support frame 1, on which a plurality of fixing blocks 3, a plurality of upward turning cylinders 5 and an adjusting mechanism 6 are fixed, and the plurality of upward turning cylinders 5 are installed at intervals on the left, rear and front sides of the upper surface of the support frame 1, and an upper pressing block 8 for pressing the bottom plate 10 on the left, front and rear sides above the battery frame 9 is connected to the piston of each upward turning cylinder 5. When the welding machine passes through the welding point, the upper pressing block 8 is turned outward away from the bottom plate 10, and the plurality of fixing blocks 3 are evenly installed on the left, front and rear sides of the upper surface of the support frame 1. Fig.11 As shown, in this embodiment, 8 fixing blocks 3 are respectively arranged at the front and rear sides of the support frame 1, and 5 fixing blocks 3 are arranged on the left side of the support frame 1, and cooperate with the five fixing blocks 2 614 to form an annular positioning frame. When placed, the battery frame 9 is entirely placed on the fixing blocks;

[0029] The adjusting mechanism 6 includes an adjusting cylinder 6-1, two guide rails 6-2, a slide plate 6-3, two inner clamping blocks 6-4, two upper flip cylinders 6-5 and a plurality of upper clamping oil cylinders 6-6. The inner clamping block 6-4 is used to abut against the inner wall on the right side of the battery frame 9. The upper clamping oil cylinder 6-6, the upper flip cylinder 6-5 and the inner clamping block 6-4 are arranged on the slide plate 6-3. A clamping cylinder 6-7 is also arranged on the slide plate 6-3. An outer clamping block 6-8 arranged opposite to one of the inner clamping blocks 6-4 is connected to the piston of the clamping cylinder 6-7. The piston of the upper flip cylinder 6-5 is connected with an upper clamping block 6-9 that presses the right side of the bottom plate 10 above the battery frame 9. The adjusting cylinder 6-1 and two guide rails 6-2 are arranged on the support frame 1. The slide plate 6-3 is slidably connected between the two guide rails 6-2. The piston of the adjusting cylinder 6-1 is connected to the slide plate 6-3. The piston of each upper clamping cylinder 6-6 is connected with an upper buckle 610 that presses the bottom plate 10 above the battery frame 9. The adjusting cylinder 6-1 is fixed to the support frame 1 through the cylinder seats on both sides, and the two guide rails 6-2 are fixed to the support frame 1. In this example, two of the upper flip cylinders 5 are arranged on the left side, the back side and the front side of the upper surface of the support frame 1. The applicant needs to explain that for the convenience of clear viewing, Figure 2 and Figure 3 Only one upper turning cylinder 5 is installed on the left side of the upper surface of the middle support frame 1, and the two turning cylinders 5 are removed later. When used later, the front and rear turning cylinders 5 can be installed symmetrically.

[0030] Preferably, in order to improve the fixing and clamping effect on the frame, a plurality of upper clamping cylinders 2 and a plurality of side clamping assemblies 4 are fixed on the support frame 1. The plurality of upper clamping cylinders 2 are arranged at intervals around the battery frame 9. The piston of each upper clamping cylinder 2 is connected with an upper buckle 7 buckled on the battery frame 9. The plurality of side clamping assemblies 4 are evenly spaced and installed on the left, front and rear of the upper surface of the support frame 1 and are used to clamp the battery frame 9 around. In this embodiment, each side clamping assembly 4 includes The side clamping block 4-1, the side clamping block 4-2 arranged opposite to the side clamping block 4-1, and the clamping cylinder 4-3, the piston of the clamping cylinder 4-3 is connected with the side clamping block 4-1, the side clamping block 4-1 and the side clamping block 4-2 arranged opposite to each other cooperate to clamp the inside and outside of the side wall of the battery frame 9, and during installation, the side of the clamping cylinder 4-3 is fixed to the support frame 1 through the cylinder seat 5 4-31, and the side clamping block 4-2 also needs to be fixed to the support frame 1 through the connecting frame 4-21. The battery frame 9 is formed by splicing four front, rear, left and right beams. Therefore, during use, the three front, rear and left beams of the battery frame 9 are respectively provided with the side clamping components 4, and two groups of side clamping components 4 are arranged at intervals on each beam, and the side clamping blocks 4-2 are against one side of the corresponding beam, and the side clamping blocks 4-1 are against two sides of the corresponding beam. In this embodiment, for the convenience of installation, the bottom of each fixing block 3 is fixedly connected to the support frame 1 through a positioning bracket 301, and each upper clamping cylinder 2 The bottom is fixedly connected to the support frame 1 through a cylinder support 201, and the side of each upward flip cylinder 2 6-5 is fixed on the slide 6-3 through a cylinder support 202. At the same time, in order to further play a positioning role and prevent the battery frame 9 from shifting, five fixed blocks 2 614 are also arranged at intervals on the slide 6-3, and the upper surface height of the fixed block 2 614 is consistent with the upper surface height of the fixed block 3, so as to prevent the battery frame 9 from shifting to the right bottom and play a positioning role on the right bottom of the battery frame 9.

[0031] Preferably, two guide rails 6-2 are arranged in parallel, and a slider 611 is fixed at the bottom of the slide 6-3, and the slider 611 is slidably connected to one guide rail 6-2. In this embodiment, two sliders 611 are arranged on each guide rail 6-2, and four sliders 611 are distributed in pairs at the bottom of the slide 6-3. At the same time, in order to play a supporting and guiding role, two parallel guide frames 612 are also arranged on the support frame 1, and one or more guide rollers 613 are rotatably connected to each guide frame 612. The rotation direction of the guide roller 613 is consistent with the moving direction of the slider 611, and the slider 611 is placed on the guide roller 613 and can move on the guide roller 613 as the slider 611 moves.

[0032] In order to achieve the primary positioning function, two positioning cylinders 101 are arranged on the front and rear sides of the support frame 1, and the two positioning cylinders 101 are arranged opposite to each other, and a positioning rod 102 is connected to the piston of each positioning cylinder 101, and the positioning rod 102 is movably inserted into the positioning through hole on the side of the battery frame 9, and in this embodiment, the positioning cylinder 101 is fixed to the support frame 1 through the cylinder seat four 103. During operation, when the battery frame 9 is placed on all the fixed blocks 1 3 and the fixed block 2 614, the positioning cylinder 101 is driven to drive the positioning rod 102 to rise, and the positioning rod 102 is inserted into the positioning through hole on the side of the battery frame 9. In order to ensure convenient positioning, it is necessary to ensure that the positioning through hole on the side of the battery frame 9 is aligned with the positioning rod 102 when manually placing the battery frame 9.

[0033] The specific working principle of this structure is as follows: first, the battery frame 9 is placed on all the fixed blocks 3, and during the placement process, the positioning rod 102 is ensured to be aligned with the positioning through hole on the side of the battery frame 9 to achieve positioning, and then the multiple sets of side clamping components 4 are driven to work, so that each upper buckle 7 is rotated to clamp the battery frame 9 on the left, front and back (in this embodiment, in order to avoid being affected by the height of the side wall of the battery frame 9 during the rotation process, resulting in the upper buckle 7 being unable to be clamped on the crossbeam of the battery frame 9 during rotation, the upper buckle 7 is connected to the corresponding upper clamping oil cylinder 2 piston rod by an upper The elastic connection method of the lower part can be adjusted elastically. As for how to elastically connect, it belongs to the conventional technology in this field, so it will not be described in detail. The connection method between the upper buckle 2 610 and the upper clamping cylinder 2 6-6 below also adopts the same elastic connection), and in the initial state, the upper clamping cylinder 2 is not in working state, and the upper buckle 7 is located on the side of the upper clamping cylinder 2, which will not affect the installation of the battery frame 9. Then, according to the length of the battery frame 9, the adjustment cylinder 6-1 is driven to work, and the slide plate 6-3 is driven to move along the two guide rails 6-2 to the upper buckle 2 610 to move the battery frame 9 is clamped on the right side, and ensure that the inner clamping block 6-4 is against the inner wall of the battery frame 9 (in order to avoid the installation of the battery frame 9 being affected by the inner clamping block 6-4, it is necessary to adjust the adjustment cylinder 6-1 when placing the battery frame 9 to ensure that the inner clamping block 6-4 is inside the battery frame 9), and then drive the clamping cylinder 2 6-7 to work to drive the outer clamping block 6-8 to press the right outer wall of the battery frame 9, and then drive the upper clamping cylinder 2 6-6 to work, so that the upper buckle 2 610 clamps the right side beam of the battery frame 9. At this time, put the bottom plate 10 on the battery frame 9 and drive the upper flip cylinder 2 6-5 and the upper flip cylinder 15 work to drive the corresponding upper clamping block 18 and the upper clamping block 2 6-9 to press the base plate 10 on the battery frame 9 on all sides, which is convenient for the subsequent ring welding operation of the welding equipment. Moreover, during welding, when the welding machine passes through the welding point, the corresponding upper clamping block 18 or the upper clamping block 2 6-9 flips outward away from the base plate 10 to avoid affecting the welding. Therefore, through the present structural setting, compatible clamping operations can be performed on battery boxes of different lengths, which is convenient for the subsequent welding work. There is no need to set different welding clamping operations according to the battery box, which further reduces the processing cost of the equipment.

[0034] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A hydraulic welding tool for a battery box, comprising a support frame (1), characterized in that: A plurality of fixed blocks (3), a plurality of upward turning cylinders (5) and an adjusting mechanism (6) are fixed on the support frame (1). The plurality of upward turning cylinders (5) are installed at intervals on the left, rear and front sides of the upper surface of the support frame (1). An upper pressing block (8) for pressing the left, front and rear sides of the bottom plate (10) against the battery frame (9) is connected to the piston of each upward turning cylinder (5). The plurality of fixed blocks (3) are evenly installed at intervals on the left, front and rear sides of the upper surface of the support frame (1). The adjusting mechanism (6) comprises an adjusting cylinder (6-1), two guide rails (6-2), a slide plate (6-3), two inner pressing blocks (6-4), two upward turning cylinders (6-5) and a plurality of upper pressing oil cylinders (6-6). The inner pressing block (6-4) is used to abut against the inner wall of the right side of the battery frame (9). The upper pressing oil cylinder (6-6) and the upward turning cylinder (6-6) are used to abut against the inner wall of the right side of the battery frame (9). The slide plate (6-3) is provided with a clamping cylinder (6-7) and an inner clamping block (6-4). The slide plate (6-3) is provided with a clamping cylinder (6-7). The piston of the clamping cylinder (6-7) is connected to an outer clamping block (6-8) arranged opposite to one of the inner clamping blocks (6-4). The piston of the upper flip cylinder (6-5) is connected to an upper clamping block (6-8) for clamping the right side of the bottom plate (10) on the top of the battery frame (9). The second tightening block (6-9), the regulating cylinder (6-1) and the two guide rails (6-2) are arranged on the support frame (1), the slide plate (6-3) is slidably connected between the two guide rails (6-2), the piston of the regulating cylinder (6-1) is connected to the slide plate (6-3), and the piston of each upper clamping cylinder (6-6) is connected with an upper buckle (610) for pressing the bottom plate (10) above the battery frame (9).

2. The hydraulic welding tool for battery box according to claim 1, characterized in that: A plurality of upper clamping oil cylinders (2) and a plurality of side clamping assemblies (4) are also fixed on the support frame (1). The plurality of upper clamping oil cylinders (2) are arranged at intervals around the battery frame (9). An upper buckle (7) buckled on the battery frame (9) is connected to the piston of each upper clamping oil cylinder (2). The plurality of side clamping assemblies (4) are evenly spaced and installed on the left, front and rear sides of the upper surface of the support frame (1) and are used to clamp the surrounding areas.

3. The hydraulic welding tool for battery box according to claim 2, characterized in that: Each set of side clamping assemblies (4) comprises a side clamping block (4-1), a side clamping block (4-2) arranged opposite to the side clamping block (4-1), and a clamping cylinder (4-3). The piston of the clamping cylinder (4-3) is connected to the side clamping block (4-1). The side clamping blocks (4-1) and the side clamping blocks (4-2) arranged opposite to each other cooperate to clamp the inner and outer sides of the side wall of the battery frame (9).

4. A hydraulic welding tool for a battery case according to claim 1, 2 or 3, characterized in that: The two guide rails (6-2) are arranged in parallel, and a slider (611) is fixed at the bottom of each of the slide plates (6-3), and the slider (611) is slidably connected to one of the guide rails (6-2).

5. A hydraulic welding tool for a battery case according to claim 1, 2 or 3, characterized in that: Two parallel guide frames (612) are also provided on the support frame (1), and one or more guide rollers (613) are rotatably connected to each guide frame (612). The rotation direction of the guide rollers (613) is consistent with the movement direction of the slider (611), and the slider (611) is placed on the guide rollers (613) and can move on the guide rollers (613) as the slider (611) moves.

6. A hydraulic welding tool for a battery case according to claim 2 or 3, characterized in that: The bottom of each fixed block (3) is fixedly connected to the support frame (1) via a positioning bracket (301), the bottom of each upper clamping cylinder (2) is fixedly connected to the support frame (1) via a cylinder support (201), and the side of each upper flip cylinder (6-5) is fixed to the slide plate (6-3) via a cylinder support (202).

7. A hydraulic welding tool for a battery case according to claim 1, 2 or 3, characterized in that: Two positioning cylinders (101) are arranged on the front and rear sides of the support frame (1), the two positioning cylinders (101) are arranged opposite to each other, and a positioning rod (102) is connected to the piston of each positioning cylinder (101), and the positioning rod (102) is movably inserted into the positioning through hole on the side of the battery frame (9).

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