Tool for spot welding of seat cushion steel wire

Abstract

The utility model relates to the field of automobile part machining, and discloses a seat cushion steel wire spot welding tool which comprises a positioning plate, the positioning plate is detachably arranged on the top face of a base, a positioning groove is formed in the top face of the positioning plate, an L-shaped frame is fixed to the top face of the base, and the L-shaped frame is fixed to the top face of the base. The telescopic end of the first hydraulic push rod penetrates through the movable hole and then is fixedly provided with a movable plate, a plurality of limiting cylinders are fixed to the bottom face of the movable plate, extrusion columns are slidably inserted into the limiting cylinders correspondingly, and the top ends of the springs are fixedly connected with the top faces of the interiors of the limiting cylinders correspondingly. According to the clamping device, the positioning plate, the positioning groove, the L-shaped frame, the first hydraulic push rod, the movable plate, the limiting barrel, the extrusion column and the spring are used in cooperation, so that the clamping device can adapt to workpieces in different shapes, it is guaranteed that the workpieces are firmly clamped, and the problem that clamping is unstable due to irregular shapes is solved; and therefore, the clamping precision and the practicability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts processing, specifically to a tooling for spot welding steel wire for seat cushions. Background Technology

[0002] Car seat cushions are generally made of steel wire. The cushion surface is formed by interlacing steel wires that extend in multiple directions, and then the intersecting parts are welded together to form the seat.

[0003] According to Chinese Patent No. CN215824665U, a tooling suitable for spot welding of steel wire in automotive seat cushions includes a base, a clamp, and a bracket. The bracket is fixed to the upper surface of the base, and the clamp is connected to the bracket. A vertical cylinder is provided on the bracket, with the cylinder body at the bottom and the extended end of the piston rod at the top. The extended end is connected to the clamp via a connecting shaft assembly. A positioning block is provided on one side of the bracket, and a positioning groove is provided on the positioning block. One end of the clamp has a pressing end, with its end face facing downwards and directly opposite the positioning groove. The other end of the clamp is connected to the connecting shaft assembly. The positioning block is fixedly connected to the upper surface of the base via a support block.

[0004] In the above solution, by embedding the workpiece to be clamped into the positioning groove, and then moving the clamping fixture by the cylinder to clamp the workpiece to be clamped at the lower end, the following disadvantages exist: when using this fixture, it cannot adapt to workpieces of different shapes, which may lead to unstable clamping and thus reduce clamping accuracy. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for spot welding steel wire for seat cushions, in order to solve the problem that the tooling cannot adapt to workpieces of different shapes during use, which may lead to unstable clamping and reduced clamping accuracy.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a tooling for spot welding steel wire of a seat cushion, including a positioning plate, the positioning plate being detachably mounted on the top surface of a base, the top surface of the positioning plate having a positioning groove, an L-shaped frame fixed on the top surface of the base, an movable hole on the top surface of the L-shaped frame, a first hydraulic push rod fixed on the top surface of the L-shaped frame, a movable plate fixed after the telescopic end of the first hydraulic push rod passes through the movable hole, a plurality of limiting cylinders fixed on the bottom surface of the movable plate, extrusion columns being slidably inserted into the interior of each of the limiting cylinders, springs being fixed to the top of each of the extrusion columns, the tops of each of the springs being fixedly connected to the inner top surface of each of the limiting cylinders, and cylinders being fixed to both sides of the outer wall of the limiting cylinders, the telescopic end of the cylinders abutting against the outer wall of the extrusion column when extended.

[0007] Preferably, the top surface of the L-shaped frame has two limiting holes, and limiting posts are slidably inserted into the two limiting holes respectively. The bottom ends of the two limiting posts are fixedly connected to the top surface of the movable plate respectively.

[0008] Preferably, a first rubber pad is fixed to the bottom end of each of the extrusion columns, and a second rubber pad is fixed to the bottom surface of the positioning groove.

[0009] Preferably, a support plate is movably provided above the base.

[0010] Preferably, a second hydraulic push rod is fixed to the top surface of the base, and one end of the telescopic rod of the second hydraulic push rod is fixedly connected to the bottom surface of the support plate.

[0011] Preferably, the top surface of the base has two threaded grooves, and mounting blocks are fixed on the left and right sides of the positioning plate, respectively. The top surfaces of the two mounting blocks are respectively provided with threaded holes, and bolts are threaded into the two threaded holes. The threaded ends of the two bolts are respectively threaded into the two threaded grooves.

[0012] Compared with existing technologies, the tooling for spot welding steel wire in seat cushions, which adopts the above-mentioned technical solution, has the following beneficial effects:

[0013] First, during operation, the operator inserts the workpiece into the positioning groove at the clamping position. Then, the first hydraulic push rod is activated, causing the moving plate to move downwards. This, in turn, lowers the limiting cylinder and the extrusion column, allowing the extrusion column to press and fix the workpiece at the clamping position. When the workpiece's clamping position is irregularly shaped, the spring can adaptively compress, allowing each extrusion column to independently adjust its downward pressure, ensuring uniform clamping at multiple points. Subsequently, the operator can activate the cylinder, extending its telescopic end to abut against the outer wall of the extrusion column, thus fixing the current position of the extrusion column. This ensures that the extrusion column will not loosen after clamping the workpiece, improving stability during subsequent workpiece processing.

[0014] By using the positioning plate, positioning groove, L-shaped frame, first hydraulic push rod, moving plate, limiting cylinder, extrusion column and spring in combination, the device can adapt to workpieces of different shapes and ensure that the workpieces are firmly clamped, avoiding the problem of unstable clamping caused by irregular shape, thereby improving the clamping accuracy and the practicality of the device.

[0015] Second, during use, the combination of the limiting holes and limiting posts facilitates the limiting of the moving plate during lifting and lowering, preventing the moving plate from shifting and thus improving stability. The first rubber pad at the bottom of the extrusion column reduces direct metal-to-metal friction when in contact with the workpiece, protecting the workpiece surface from damage; the second rubber pad also provides cushioning and protection. The support plate allows the operator to insert the workpiece into the positioning slot at the desired clamping position, and then adjust it to ensure the remaining structure of the workpiece contacts the support block, thereby supporting the workpiece and improving stability.

[0016] Third, during use, by activating the second hydraulic push rod, the height of the support plate can be adjusted according to the size and height of the workpiece, improving the adaptability and flexibility of the device and meeting the support needs of workpieces of different sizes and shapes. The use of threaded grooves, mounting blocks, threaded holes, and bolts facilitates the installation and removal of the positioning plate by operators, allowing them to select the appropriate positioning plate width according to actual needs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0018] Figure 2 This is an exploded diagram of an embodiment.

[0019] Figure 3 This is a cross-sectional view of the limiting cylinder in the embodiment.

[0020] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0021] In the diagram: 1. Positioning plate; 2. Base; 3. Positioning groove; 4. L-shaped frame; 5. Movable hole; 6. First hydraulic push rod; 7. Moving plate; 8. Limiting cylinder; 801. Cylinder; 9. Extrusion column; 10. Spring; 11. Limiting hole; 12. Limiting post; 13. First rubber pad; 14. Second rubber pad; 15. Support plate; 16. Second hydraulic push rod; 17. Threaded groove; 18. Mounting block; 19. Threaded hole; 20. Bolt. Detailed Implementation

[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1-4As shown, a tooling for spot welding steel wire for seat cushions includes a positioning plate 1, which is detachably mounted on the top surface of a base 2. The top surface of the positioning plate 1 has a positioning groove 3. An L-shaped frame 4 is fixed on the top surface of the base 2. An movable hole 5 is opened on the top surface of the L-shaped frame 4. A first hydraulic push rod 6 is fixed on the top surface of the L-shaped frame 4. The telescopic end of the first hydraulic push rod 6 passes through the movable hole 5 and is fixed to a moving plate 7. A plurality of limiting cylinders 8 are fixed on the bottom surface of the moving plate 7. An extrusion column 9 is slidably inserted into the interior of each of the limiting cylinders 8. A spring 10 is fixed to the top of each of the extrusion columns 9. The top of each of the springs 10 is fixedly connected to the inner top surface of each of the limiting cylinders 8. Cylinders 801 are fixed on both sides of the outer wall of the limiting cylinder 8. When the telescopic end of the cylinder 801 extends, it abuts against the outer wall of the extrusion column 9.

[0024] In operation, the operator first inserts the workpiece into the positioning groove 3 at the clamping position. Then, the first hydraulic push rod 6 is activated, causing the moving plate 7 to move downwards. This, in turn, causes the limiting cylinder 8 and the extrusion column 9 to descend together, allowing the extrusion column 9 to press and fix the workpiece at the clamping position. When the shape of the workpiece's clamping position is irregular, the spring 10 can adaptively compress, allowing each extrusion column 9 to independently adjust its downward pressure, ensuring uniform clamping at multiple points. Subsequently, the operator can activate the cylinder 801, extending its telescopic end to abut against the outer wall of the extrusion column 9, thereby fixing the current position of the extrusion column 9. This ensures that the extrusion column 9 will not loosen after clamping the workpiece, improving the stability during subsequent workpiece processing.

[0025] By using the positioning plate 1, positioning groove 3, L-shaped frame 4, first hydraulic push rod 6, moving plate 7, limiting cylinder 8, extrusion column 9 and spring 10 in combination, the device can adapt to workpieces of different shapes and ensure that the workpieces are firmly clamped, avoiding the problem of unstable clamping caused by irregular shapes, thereby improving the clamping accuracy and the practicality of the device.

[0026] like Figure 1 and Figure 2 As shown, the top surface of the L-shaped frame 4 has two limiting holes 11, and the two limiting holes 11 are respectively slidably inserted with limiting posts 12. The bottom ends of the two limiting posts 12 are respectively fixedly connected to the top surface of the movable plate 7.

[0027] In use, the cooperation of the limiting hole 11 and the limiting post 12 helps to limit the movement of the moving plate 7 during lifting and lowering, preventing the moving plate 7 from deviating, thereby improving stability.

[0028] like Figures 1-4 As shown, the bottom ends of several extrusion columns 9 are respectively fixed with first rubber pads 13, the bottom surface of the positioning groove 3 is fixed with second rubber pads 14, and a support plate 15 is movably provided above the base 2.

[0029] During use, the first rubber pad 13 at the bottom of the extrusion column 9 reduces direct friction between metals when in contact with the workpiece, protecting the workpiece surface from damage. Simultaneously, the second rubber pad 14 also provides cushioning and protection. The support plate 15 allows the operator to insert the workpiece into the positioning groove 3 at the desired clamping position, and then adjust the workpiece so that the remaining structure contacts the support plate 15, thereby supporting the workpiece and improving its stability.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, a second hydraulic push rod 16 is fixed on the top surface of the base 2. One end of the telescopic rod of the second hydraulic push rod 16 is fixedly connected to the bottom surface of the support plate 15. Two threaded grooves 17 are opened on the top surface of the base 2. Mounting blocks 18 are fixed on the left and right sides of the positioning plate 1, respectively. Threaded holes 19 are opened on the top surface of the two mounting blocks 18, and bolts 20 are threadedly connected in the two threaded holes 19. The threaded ends of the two bolts 20 are respectively threadedly connected to the inside of the two threaded grooves 17.

[0031] During use, by activating the second hydraulic push rod 16, the height of the support plate 15 can be adjusted according to the size and height of the workpiece, improving the adaptability and flexibility of the device and meeting the support requirements of workpieces of different sizes and shapes. The use of the threaded groove 17, mounting block 18, threaded hole 19, and bolt 20 facilitates the disassembly and assembly of the positioning plate 1, allowing workers to select the appropriate positioning plate 1 according to actual needs, thus adapting to workpieces of different sizes.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool for spot welding of steel wires of a seat cushion, comprising a positioning plate (1) detachably provided on a top surface of a base (2), characterized in that, The top surface of the positioning plate (1) is provided with a positioning groove (3), the top surface of the base (2) is fixedly provided with an L-shaped frame (4), the top surface of the L-shaped frame (4) is provided with a movable hole (5), the top surface of the L-shaped frame (4) is fixedly provided with a first hydraulic push rod (6), the telescopic end of the first hydraulic push rod (6) is fixedly provided with a moving plate (7) after penetrating through the movable hole (5), the bottom surface of the moving plate (7) is fixedly provided with a plurality of limiting barrels (8), the interiors of the plurality of limiting barrels (8) are respectively slidably provided with extrusion columns (9), the top ends of the plurality of extrusion columns (9) are respectively fixedly provided with springs (10), the top ends of the plurality of springs (10) are respectively fixedly connected with the inner top surfaces of the plurality of limiting barrels (8), and the outer walls of the limiting barrels (8) are respectively fixedly provided with air cylinders (801) on both sides.

2. The tool for spot welding of steel wires of a seat cushion according to claim 1, characterized in that: The top surface of the L-shaped frame (4) is provided with two limiting holes (11), the interiors of the two limiting holes (11) are respectively slidably provided with limiting columns (12), and the bottom ends of the two limiting columns (12) are respectively fixedly connected with the top surface of the moving plate (7).

3. The tool for spot welding of steel wires of a seat cushion according to claim 2, characterized in that: The bottom ends of the plurality of extrusion columns (9) are respectively fixedly provided with first rubber pads (13), and the inner bottom surface of the positioning groove (3) is fixedly provided with a second rubber pad (14).

4. The tool for spot welding of steel wires of a seat cushion according to claim 3, characterized in that: A support plate (15) is movably arranged above the base (2).

5. The tool for spot welding of steel wires of a seat cushion according to claim 4, characterized in that: The top surface of the base (2) is fixedly provided with a second hydraulic push rod (16), one end of the telescopic rod of the second hydraulic push rod (16) is fixedly connected with the bottom surface of the support plate (15).

6. The tool for spot welding of steel wires of a seat cushion according to claim 5, characterized in that: The top surface of the base (2) is provided with two threaded grooves (17), the left side and the right side of the positioning plate (1) are respectively fixedly provided with mounting blocks (18), the top surfaces of the two mounting blocks (18) are respectively provided with threaded holes (19), and the two threaded holes (19) are respectively threadedly connected with bolts (20), and the threaded ends of the two bolts (20) are respectively threadedly connected with the interiors of the two threaded grooves (17).

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