Welding tool for automobile seat decorative plate

Abstract

A welding tool for an automobile seat decorative plate comprises an upper die and a lower die, the upper die is connected with a driving mechanism capable of driving the upper die to move up and down relative to the lower die, a positioning mechanism is arranged at the top of the lower die, and the automobile seat decorative plate which is not welded can be detachably connected to the top of the lower die through the positioning mechanism. N welding heads are distributed at the bottom of the upper die at intervals, switches of the N welding heads are connected to a control circuit board of the driving mechanism through circuits, the N welding heads can make contact with and weld the corresponding positions of the automobile seat decoration plate at the same time, and N is a natural number larger than 3. The automobile seat decorative plate welding device has the advantages that the multiple welding heads can make contact with and weld the corresponding positions of the automobile seat decorative plate at the same time, the welding positions, needing to be welded in sequence, of the automobile seat decorative plate are welded at a time, and the welding efficiency of the automobile seat decorative plate is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of automobile seat decorative plate manufacturing mould technical field, especially to a kind of welding tooling of automobile seat decorative plate. BACKGROUND

[0002] A kind of rear decorative plate hot plate welding device is disclosed in the prior application No.CN201410800995.X entitled "a kind of rear decorative plate hot plate welding device", including rack, the rack is divided into three parts: upper portion, middle portion, lower portion;Two upper air cylinders are installed on the outer side of the upper portion of the rack, and are fixedly connected with the decorative plate cover welding mould on the inner side of the upper portion;Decorative plate cover and decorative plate shell are placed in welding mould respectively, hot mould air cylinder stretches and pushes hot mould mounting table to the position of welding mould, welding mould moves and is heated by heating wire to make two parts of the combination portion melt, hot mould mounting table resets, decorative plate cover welding mould and decorative plate shell welding mould are compressed under the control of upper air cylinder and lower air cylinder to complete welding, and workpiece is ejected by ejector mechanism;The application has simple structure, convenient operation, high product qualification rate, greatly reduces labor, and improves productivity. However, the device cannot handle the welding requirements of multiple welding points of automobile seat decorative plate, so the structure of the device needs to be further improved. SUMMARY

[0003] The utility model provides a kind of welding tooling of automobile seat decorative plate that can weld multiple welding points once, with high welding efficiency, to solve the technical problems of the prior art.

[0004] The technical scheme adopted by the utility model to solve the above technical problems is as follows: the welding tooling of the automobile seat decorative plate, including upper die and lower die, the upper die is connected with the driving mechanism that can drive the upper die to move up and down relative to the lower die, characterized by: a positioning mechanism is arranged on the top of the lower die, and the automobile seat decorative plate that has not been welded can be detachably connected to the top of the lower die through the positioning mechanism; N welding heads are distributed at intervals on the bottom of the upper die, and the switches of the N welding heads are connected to the control circuit board of the driving mechanism through a circuit; the N welding heads can simultaneously contact and weld the corresponding positions of the automobile seat decorative plate; N is a natural number greater than 3.

[0005] As an improvement, the N welding heads can preferably include double-head welding heads symmetrically arranged at the top corner positions of the bottom surface of the upper die and frame welding heads circumferentially distributed on the bottom surface of the upper die.

[0006] Further improvement, the double-head welding heads can preferably include stepped welding heads that can simultaneously weld two positions of different heights of the automobile seat decorative plate and isometric welding heads that can simultaneously weld two positions of the same height of the automobile seat decorative plate. The welding positions of the automobile seat decorative plate of different positions and shapes can be adapted.

[0007] Further improvement, the stepped welding head can preferably include a welding seat, a large welding body and a small welding body, the welding seat is connected on the bottom surface of the upper die, the large welding body and the small welding body are connected on the welding seat, the height of the large welding body is greater than the height of the small welding body.

[0008] Further improvement, the side wall of some frame welding head can be preferably provided with a side wall recess capable of avoiding the insertion of the protrusion on the automobile seat decorative plate.

[0009] As an improvement, the top of the lower die can be preferably provided with a positioning recess capable of positioning the automobile seat decorative plate.

[0010] As an improvement, the top of the lower die can be preferably provided with a positioning protrusion capable of inserting the recess on the automobile seat decorative plate.

[0011] As an improvement, the positioning mechanism can preferably be a positioning cover plate capable of covering the top of the lower die, the positioning cover plate is fixed with the lower die through threaded fasteners, and the positioning cover plate is distributed with cover plate through holes capable of passing through the corresponding welding head.

[0012] Further improvement, the positioning cover plate can be preferably provided with a cover plate notch capable of passing through the insertion protrusion on the automobile seat decorative plate. The positioning cover plate can be closer to the automobile seat decorative plate, and the installation positioning effect is good.

[0013] Further improvement, the cover plate notch can be preferably communicated with the cover plate through hole. The structure is compact, which helps to reduce the weight of the positioning cover plate.

[0014] Compared with the prior art, the upper die is provided with a plurality of welding heads, the plurality of welding heads can simultaneously contact and weld the corresponding positions of the automobile seat decorative plate, the welding positions of the automobile seat decorative plate which need to be welded in sequence are welded at one time, and the welding efficiency of the automobile seat decorative plate is greatly improved; the automobile seat decorative plate which has not been welded can be detachably connected on the top of the lower die through the positioning mechanism, and when the plurality of welding heads work, the automobile seat decorative plate can be connected on the top of the lower die through the positioning mechanism, so that the shaking and slight displacement during welding are avoided, and the welding effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the automobile seat decorative plate after installation in the embodiment of the utility model;

[0016] Figure 2 is Figure 1 is a structural exploded view;

[0017] Figure 3 is Figure 1 is a structural exploded view after turning over;

[0018] Figure 4 yes Figure 3 Further structural decomposition diagram;

[0019] Figure 5 yes Figure 4 A three-dimensional view of the upper and middle molds;

[0020] Figure 6 yes Figure 5 Exploded view of the structure of the lower mold and the car seat trim panel after flipping;

[0021] Figure 7 yes Figure 6 Exploded view of the structure of a car seat trim panel. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 7 As shown, the welding fixture for the automotive seat trim panel in this embodiment includes an upper mold 1 and a lower mold 2. The upper mold 1 is connected to a drive mechanism that can drive the upper mold 1 to move up and down relative to the lower mold 2. A positioning mechanism is provided on the top of the lower mold 2, and the unwelded automotive seat trim panel can be detachably connected to the top of the lower mold 2 via the positioning mechanism. N welding heads are distributed at intervals on the bottom of the upper mold 1. The switches of the N welding heads are connected to the control circuit board of the drive mechanism through circuits. The specific circuit structure of the control circuit board, as well as the specific principles and steps of the control circuit board controlling the drive mechanism to drive the upper mold to move and controlling the opening and closing of the N welding heads, are all prior art and will not be described in detail here. The N welding heads can simultaneously contact and weld the corresponding positions of the automotive seat trim panel, where N is a natural number greater than 3.

[0024] The unwelded car seat trim panel 3 includes a base plate 31, a middle plate 32, and an upper plate 33, which are stacked sequentially. N welding heads include double-headed welding heads symmetrically arranged at the top corners of the upper mold bottom surface and frame welding heads 11 circumferentially distributed on the upper mold bottom surface. The double-headed welding heads include stepped welding heads 12 capable of simultaneously welding two positions of the car seat trim panel at different heights, and equal-height welding heads 13 capable of simultaneously welding two positions of the car seat trim panel at the same height. The stepped welding head 12 includes a welding seat 121, a large welding body 122, and a small welding body 123. The welding seat 121 is connected to the upper mold bottom surface, and the large welding body 122 and the small welding body 123 are connected to the welding seat 121. The height of the large welding body 122 is greater than the height of the small welding body 123. The first protrusion of the base plate 31 passes through the first through hole of the middle plate 32, and a small welding body 123 welds the first protrusion and the middle plate 32 together. The second protrusion of the middle plate 32 passes through the second through hole of the upper plate 33, and a large welding body 122 welds the second protrusion and the upper plate 33 together. The third protrusion on the base plate 31 passes through the through holes of the middle plate 32 and the upper plate 33, and a partial frame welding head 11 welds the third protrusion on the base plate 31 and the upper plate 33 together. The fourth protrusion of the middle plate 32 passes through the third through hole of the upper plate 33, and a partial frame welding head 11 welds the fourth protrusion and the upper plate 33 together.

[0025] Some of the frame welding joints 11 have side wall recesses 111 that can avoid the insertion protrusions 311 on the car seat trim panel.

[0026] A positioning recess 21 for positioning the car seat trim panel is provided on the top of the lower mold 2. A positioning protrusion 22 for inserting the recess of the car seat trim panel is provided on the top of the lower mold 2.

[0027] The positioning mechanism is a positioning cover plate 4 that can cover the top of the lower mold. The positioning cover plate 4 is fixed to the lower mold 2 by threaded fasteners. The positioning cover plate 4 has cover plate through holes 41 that can pass through corresponding welding heads. The positioning cover plate 4 is provided with a cover plate notch 42 that can pass through the insertion protrusion 311 on the car seat trim panel. The cover plate notch 42 is connected to the cover plate through holes 41.

Claims

1. A welding fixture for an automotive seat trim panel, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) is connected to a driving mechanism capable of driving the upper mold (1) to move up and down relative to the lower mold (2), characterized in that: A positioning mechanism is provided on the top of the lower mold (2). The unwelded car seat trim panel can be detachably connected to the top of the lower mold (2) via the positioning mechanism. N welding heads are distributed at intervals at the bottom of the upper mold (1). The switches of the N welding heads are connected to the control circuit board of the drive mechanism through the circuit. The N welding heads can simultaneously contact and weld the corresponding positions of the car seat trim panel. N is a natural number greater than 3.

2. The welding fixture according to claim 1, characterized in that: The N welding heads include double-headed welding heads symmetrically arranged at the top corner of the bottom surface of the upper mold and frame welding heads distributed circumferentially on the bottom surface of the upper mold (11).

3. The welding fixture according to claim 2, characterized in that: The double-headed welding head includes a stepped welding head (12) that can simultaneously weld two positions of the car seat trim panel at different heights, and an equal-height welding head (13) that can simultaneously weld two positions of the car seat trim panel at the same height.

4. The welding fixture according to claim 3, characterized in that: The stepped welding head (12) includes a welding seat (121), a large welding body (122), and a small welding body (123). The welding seat (121) is connected to the bottom surface of the upper mold. The large welding body (122) and the small welding body (123) are connected to the welding seat (121). The height of the large welding body (122) is greater than the height of the small welding body (123).

5. The welding fixture according to claim 2, characterized in that: Some of the frame welding joints (11) have side wall recesses (111) that can avoid the insertion protrusions (311) on the car seat trim panel.

6. The welding fixture according to any one of claims 1 to 5, characterized in that: A positioning recess (21) for positioning the car seat trim panel is provided on the top of the lower mold (2).

7. The welding fixture according to any one of claims 1 to 5, characterized in that: A positioning protrusion (22) is provided on the top of the lower mold (2) to insert into the recess of the car seat trim panel.

8. The welding fixture according to any one of claims 1 to 5, characterized in that: The positioning mechanism is a positioning cover plate (4) that can cover the top of the lower mold. The positioning cover plate (4) is fixed to the lower mold (2) by a threaded fastener. The positioning cover plate (4) has through holes (41) that can pass through the corresponding welding head.

9. The welding fixture according to claim 8, characterized in that: The positioning cover plate (4) is provided with a cover plate notch (42) through which the insertion protrusion (311) on the car seat trim panel can pass.

10. The welding fixture according to claim 9, characterized in that: The notch (42) of the cover plate is connected to the through hole (41) of the cover plate.

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