Welding fixture for automobile seat production

Abstract

The utility model relates to a welding fixture for automobile seat production, which comprises a first clamping unit arranged on a base and used for clamping a first assembly, and the first clamping unit comprises a clamping component A for clamping a workpiece A, a clamping component B for clamping a workpiece B and a clamping component C for clamping a workpiece C, the A clamping assembly, the B clamping assembly and the C clamping assembly are used for enabling the A workpiece, the B workpiece and the C workpiece to be in the A state. According to the scheme provided by the utility model, the seat assembly can be reliably clamped, the welding quality is ensured, the welding efficiency is improved, the welding operation is simplified, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production field of vehicle seat, concretely relates to a welding fixture for car seat production. BACKGROUND

[0002] The vehicle seat is composed of an internal framework and a cushion laid on the internal framework. The internal framework of the seat is composed of small frameworks. The small frameworks are formed by bending steel bars and then assembled by welding. The existing welding is generally implemented by welding robots, but the components still need to be clamped on the welding fixture by manual operation. Therefore, the clamping reliability and convenience of the welding fixture have a great influence on the welding quality and efficiency. Different vehicle seats have different designs and internal framework structures, so different welding fixtures need to be set up to weld the corresponding frameworks. SUMMARY

[0003] The utility model discloses a welding fixture for car seat production, which can reliably clamp the components of the framework, facilitate welding and improve welding efficiency.

[0004] The utility model discloses a welding fixture for car seat production, which can reliably clamp the components of the framework, facilitate welding and improve welding efficiency.

[0005] A welding fixture for car seat production, characterized by comprising a first clamping unit arranged on the base for clamping a first assembly, the first clamping unit comprising an A clamping assembly for clamping an A workpiece, a B clamping assembly for clamping a B workpiece, and a C clamping assembly for clamping a C workpiece, the A clamping assembly, the B clamping assembly, and the C clamping assembly being used to place the A workpiece, the B workpiece, and the C workpiece in an A state; the A state being that the A rod body and the B rod body are arranged in parallel and horizontally spaced, the C2 plate body and the middle part of the A rod body are in abutment, and the abutment is in a state capable of being welded, the B1 short rod and the B2 short rod are respectively in parallel abutment with the A rod body, and the abutment is in a state capable of being welded, and the C workpiece is located between the B1 short rod and the B2 short rod.

[0006] The first assembly is composed of A workpiece, B workpiece and C workpiece, the A workpiece and the B workpiece are respectively composed of a zigzag rod, the A workpiece includes an A rod body arranged horizontally, the two ends of the A rod body are respectively provided with A1 short rod and A2 short rod in a suspended manner, the lower ends of the A1 short rod and the A2 short rod are respectively provided with A1 inclined rod and A2 inclined rod extending outwardly and downwardly, the length of the A2 inclined rod is less than that of the A1 inclined rod, the A rod body and the A1 inclined rod and the A2 inclined rod are arranged vertically, the lower end of the A1 inclined rod is bent outwardly to form an A1 rod body, and the A1 rod body and the A rod body are arranged in parallel; the B workpiece includes a B rod body arranged horizontally, the two ends of the B rod body are respectively provided with B1 short rod and B2 short rod bent upwardly and vertically, the upper ends of the B1 short rod and the B2 rod body are respectively provided with B1 connecting rod and B2 connecting rod arranged horizontally, the ends of the B1 connecting rod and the B2 connecting rod away from the B rod body are respectively provided with B1 short rod and B2 short rod outwardly, the B1 short rod is arranged closer to the A1 inclined rod than the B2 short rod, and the B1 short rod, the B2 short rod and the B rod body are all arranged in parallel; the C workpiece is composed of a zigzag plate, the C workpiece includes a C1 plate body arranged horizontally and a C2 plate body arranged vertically, and the C1 plate body is provided with an assembly hole.

[0007] Specifically, the A clamping assembly includes A1 supporting portion for supporting the A rod body, A2 supporting portion for supporting the A1 inclined rod, A3 supporting portion for supporting the A2 inclined rod, A4 supporting portion for supporting the A1 rod body, and A1 pressing portion and A2 pressing portion for pressing the A1 inclined rod and the A2 inclined rod respectively, and the A1 pressing portion and the A2 pressing portion are movably installed.

[0008] The B clamping assembly includes B1 supporting portion and B2 supporting portion for supporting the middle portions of the B1 connecting rod and the B2 connecting rod respectively, B3 supporting portion for supporting the B rod body, and B1 pressing portion, B2 pressing portion and B3 pressing portion for pressing the middle portions of the B1 connecting rod, the B2 connecting rod and the B rod body respectively.

[0009] The C clamping assembly includes C1 supporting portion for supporting the C1 plate body and C1 pressing portion for pressing the C1 plate body.

[0010] The A1 supporting portion includes A11 supporting block and A12 supporting block, the A11 supporting block and the A12 supporting block are respectively provided with A11 clamping groove and A12 clamping groove for accommodating the body of the A rod body, the length directions of the A11 clamping groove and the A12 clamping groove are consistent with the length direction of the A rod body, the A11 supporting block is used for supporting the middle rod body of the A rod body, the A11 supporting block is located between the B1 connecting rod and the C workpiece, and the A2 supporting block supports the end of the A2 short rod provided on the A rod body.

[0011] The A2 supporting part and the A3 supporting part respectively comprise an A2 supporting block and an A3 supporting block, and the A2 supporting block and the A3 supporting block are respectively provided with an A2 inclined surface and an A3 inclined surface arranged obliquely, the A2 inclined surface and the A3 inclined surface are respectively provided with an A2 clamping groove and an A3 clamping groove for accommodating an A1 inclined rod and an A2 inclined rod, the A4 supporting part comprises an A4 supporting block, and the A4 supporting block is provided with an A4 clamping groove for accommodating an A1 rod body, and the A1 pressing part and the A2 pressing part are respectively formed by an A1 pressing block and an A2 pressing block.

[0012] The B1 supporting part and the B2 supporting part respectively comprise a B1 supporting block and a B2 supporting block, the upper surfaces of the B1 supporting block and the B2 supporting block are respectively provided with a stepped surface structure, the stepped surface structure comprises a horizontal surface and a vertical surface, the horizontal surface supports the B1 connecting rod and the B2 connecting rod, the B3 supporting part comprises a B3 supporting block, the B3 supporting block is provided with a B3 clamping groove for accommodating the B rod body, the length direction of the B3 clamping groove is consistent with the length direction of the B rod body, and the B1 pressing part, the B2 pressing part and the B3 pressing part are respectively formed by a B1 pressing block, a B2 pressing block and a B3 pressing block.

[0013] The C1 supporting part comprises a C1 supporting block, the upper surface of the C1 supporting block is provided with a C vacancy for accommodating the C1 plate body, the shape of the C vacancy is consistent with the shape of the C1 plate body, and the C vacancy is arranged by extending inwardly from the edge of the C1 supporting block, the C2 plate body is arranged by abutting against the side surface of the C1 supporting block, and the C1 pressing part is formed by a C1 pressing block.

[0014] The A1 pressing block and the A2 pressing block are respectively provided with an A1 pressing inclined surface and an A2 pressing inclined surface, the A1 pressing inclined surface and the A2 pressing inclined surface are respectively matched with and correspond to the A2 inclined surface and the A3 inclined surface, the A1 pressing block and the A2 pressing block are respectively hingedly installed on the base through an A1 hinge shaft and an A2 hinge shaft, and the A1 pressing block and the A2 pressing block are respectively connected with an A1 cylinder and an A2 cylinder for adjusting the overturning thereof.

[0015] The B1 pressing block and the B2 pressing block are respectively provided with a B1 pressing inclined surface and a B2 pressing inclined surface, the B1 pressing inclined surface and the B2 pressing inclined surface respectively form a B1 constraint channel and a B2 constraint channel on the horizontal surface and the vertical surface of the stepped surface structure, the B1 constraint channel and the B2 constraint channel constrain the B1 connecting rod and the B2 connecting rod, the B1 pressing block, the B2 pressing block, the B3 pressing block and the C1 pressing block are all installed on an overturning support, the overturning support is rotatably installed on the base through a B hinge shaft, the overturning support is connected with a B1 cylinder for adjusting the overturning thereof, the A11 clamping groove, the A12 clamping groove and the B3 clamping groove are all V-shaped grooves, the A2 clamping groove, the A3 clamping groove and the A4 clamping groove are all U-shaped grooves, and the A2 supporting block and the A3 supporting block are further provided with an A1 vertical surface and an A2 vertical surface for abutting against an A1 short rod and an A2 short rod respectively.

[0016] The base is further provided with a second clamping unit for clamping the second assembly, the structure of the second assembly is symmetrical to the first assembly, and the structure of the first clamping unit and the second clamping unit is symmetrical.

[0017] The above scheme provided by the utility model can reliably clamp the seat assembly, ensure welding quality and improve welding efficiency, simplify welding operation and reduce production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a structural schematic diagram.

[0019] Figure 2 The utility model provides a structural schematic diagram of A clamping assembly, B clamping assembly and C clamping assembly.

[0020] Figure 3 The utility model provides a structural schematic diagram of A clamping assembly, B clamping assembly and C clamping assembly. Figure 2 The utility model provides a structural schematic diagram of A clamping assembly, B clamping assembly and C clamping assembly.

[0021] Figure 4 The utility model provides a structural schematic diagram of A clamping assembly, B clamping assembly and C clamping assembly.

[0022] Figure 5 The utility model provides a structural schematic diagram of A clamping assembly, B clamping assembly and C clamping assembly.

[0023] Figure 6 The utility model provides a structural schematic diagram of A clamping assembly, B clamping assembly and C clamping assembly.

[0024] Figure number explanation: 01-A workpiece, 02-B workpiece, 03-C workpiece, 10-base, 20-first clamping unit, 2a-second clamping unit, 21-A11 support block, 22-A12 support block, 23-A2 support block, 24-A3 support block, 25-A4 support block, 26-B1 support block, 27-B2 support block, 28-B3 support block, 29-C1 support block, 31-A1 pressure block, 32-A2 pressure block, 33-A1 cylinder, 34-A2 cylinder, 35-B1 pressure block, 36-B2 pressure block, 37-B3 pressure block, 38-C1 pressure block, 39-overturning support, 40-B1 cylinder. DETAILED DESCRIPTION

[0025] In order to make the purpose and the advantage of the utility model more clearly and clearly, the utility model is specifically explained below with examples.It should be understood that the following text is only used to describe one or several specific implementation manners of the utility model, and does not strictly limit the protection range of the utility model specifically requested.

[0026] As used herein, the terms "parallel", "perpendicular", and the like are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human error.

[0027] As shown in Figures 1-4 A welding fixture for automobile seat production, comprising a first clamping unit 20 arranged on the base 10 for clamping the first assembly, the first clamping unit 20 comprising an A clamping assembly for clamping the A workpiece 01, a B clamping assembly for clamping the B workpiece 02, and a C clamping assembly for clamping the C workpiece 03, the A clamping assembly, the B clamping assembly, and the C clamping assembly being used to make the A workpiece 01, the B workpiece 02, and the C workpiece 03 in an A state; the A state is that the A rod body and the B rod body are arranged in parallel and horizontally spaced, the C2 plate body and the middle part of the A rod body are abutted, and the abutting part is in a state capable of being welded, the B1 short rod and the B2 short rod are respectively in parallel and abutted with the A rod body, and the abutting part is in a state capable of being welded, and the C workpiece 03 is located between the B1 short rod and the B2 short rod. As shown in Figure 6 The first assembly is composed of the A workpiece 01, the B workpiece 02, and the C workpiece 03, the A workpiece 01 and the B workpiece 02 are respectively composed of a folded rod piece, the A workpiece 01 comprises an A rod body arranged horizontally, the two ends of the A rod body are respectively provided with A1 short rod and A2 short rod in a suspended manner, the lower ends of the A1 short rod and the A2 short rod are respectively provided with A1 inclined rod and A2 inclined rod extending outwardly and downwardly, the length of the A2 inclined rod is less than the length of the A1 inclined rod, the A rod body is arranged vertically with the A1 inclined rod and the A2 inclined rod, the lower end of the A1 inclined rod is bent outwardly to form an A1 rod body, and the A1 rod body is arranged in parallel with the A rod body; the B workpiece 02 comprises a B rod body arranged horizontally, the two ends of the B rod body are respectively bent upwardly to form B1 short rod and B2 short rod, the upper ends of the B1 short rod and the B2 rod body are respectively provided with B1 connecting rod and B2 connecting rod arranged horizontally and extending toward the side close to the A rod body, the ends of the B1 connecting rod and the B2 connecting rod away from the B rod body are respectively provided with B1 short rod and B2 short rod outwardly, the B1 short rod is arranged closer to the A1 inclined rod than the B2 short rod, and the B1 short rod, the B2 short rod, and the B rod body are all arranged in parallel; the C workpiece 03 is composed of a folded plate piece, the C workpiece 03 comprises a C1 plate body arranged horizontally and a C2 plate body arranged vertically, and the C1 plate body is provided with an assembly hole. Through reliable clamping of the first assembly, the A workpiece 01, the B workpiece 02, and the C workpiece 03 are reliably clamped, and the welding connection part can be reliably welded, thereby improving the welding quality and the welding efficiency. Further, the base 10 is further provided with a second clamping unit 2a for clamping a second assembly, the structure of the second assembly is symmetrical to that of the first assembly, and the structure of the first clamping unit 20 is symmetrical to that of the second clamping unit 2a. Generally, a seat is composed of structures arranged symmetrically left and right, so that the first assembly and the second assembly arranged symmetrically left and right can be quickly welded, thereby improving the welding quality.

[0028] Further as shown in Figure 2 , 3As shown in FIGS. 4, the A clamping assembly comprises an A1 supporting portion for supporting the A rod body, an A2 supporting portion for supporting the A1 inclined rod, an A3 supporting portion for supporting the A2 inclined rod, an A4 supporting portion for supporting the A1 rod body, and an A1 pressing portion and an A2 pressing portion for pressing the A1 inclined rod and the A2 inclined rod respectively, wherein the A1 pressing portion and the A2 pressing portion are movably installed. The B clamping assembly comprises a B1 supporting portion and a B2 supporting portion for supporting the middle portions of the B1 connecting rod and the B2 connecting rod respectively, a B3 supporting portion for supporting the B rod body, and a B1 pressing portion, a B2 pressing portion, and a B3 pressing portion for pressing the middle portions of the B1 connecting rod, the B2 connecting rod, and the B rod body respectively. The C clamping assembly comprises a C1 supporting portion for supporting the C1 plate body and a C1 pressing portion for pressing the C1 plate body. The above structure is used to clamp the A workpiece 01, the B workpiece 02, and the C workpiece 03, so that reliable clamping of the workpieces can be achieved with fewer clamping points, the production cost of the clamp is reduced, the clamping and unloading operations of the clamp are simplified, and the welding efficiency is improved.

[0029] More specific operation is: A1 support part includes A11 support block 21 and A12 support block 22, A1 support block and A12 support block 22 are provided with A11 clamping groove, A12 clamping groove for accommodating A rod body respectively, the length direction of A11 clamping groove and A12 clamping groove is consistent with the length direction of A rod body, A1 support block is used to support the middle rod body of A rod body, A1 support block is located between B1 connecting rod and C workpiece 03, A2 support block 23 supports the end of A2 short rod arranged on A rod body.A2 support part, A3 support part includes A2 support block 23, A3 support block 24 respectively, A2 support block 23, A3 support block 24 are provided with A2 inclined plane, A3 inclined plane arranged obliquely respectively, A2 inclined plane, A3 inclined plane are provided with A2 clamping groove, A3 clamping groove for accommodating A1 inclined rod, A2 inclined rod respectively, A4 support part includes A4 support block 25, A4 support block 25 is provided with A4 clamping groove for accommodating A1 rod body, A1 pressing part, A2 pressing part is composed of A1 pressing block 31, A2 pressing block 32 respectively.B1 support part, B2 support part includes B1 support block 26 and B2 support block 27 respectively, the upper surface of B1 support block 26 and B2 support block 27 is arranged into step surface structure respectively, the step surface structure includes horizontally arranged mesa and vertically arranged step surface, the mesa supports B1 connecting rod or B2 connecting rod, B3 support part includes B3 support block 28, B3 support block 28 is provided with B3 clamping groove for accommodating B rod body, the length direction of B3 clamping groove is consistent with the length direction of B rod body, B1 pressing part, B2 pressing part is composed of B1 pressing block 35, B2 pressing block 36, B3 pressing block 37 respectively.C1 support part includes C1 support block 29, the upper surface of C1 support block 29 is provided with C vacancy for accommodating C1 plate body, the shape of C vacancy is consistent with the shape of C1 plate body, C vacancy is arranged by the inward extension of the edge of C1 support block 29, C2 plate body is arranged by abutting the side surface of C1 support block 29, C1 pressing part is composed of C1 pressing block 38.A1 pressing block 31, A2 pressing block 32 are provided with A1 pressing inclined plane, A2 pressing inclined plane respectively, A1 pressing inclined plane, A2 pressing inclined plane are matched and correspondingly arranged with A2 inclined plane, A3 inclined plane respectively, A1 pressing block 31, A2 pressing block 32 are hingedly installed on base 10 through A1 hinge shaft, A2 hinge shaft respectively, A1 pressing block 31, A2 pressing block 32 are connected with A1 cylinder 33, A2 cylinder 34 for adjusting the overturning thereof respectively.B1 pressing block 35, B2 pressing block 36 respectively set B1 pressing slope, B2 pressing slope, B1 pressing slope / B2 pressing slope respectively and the table, the step surface structure on the step surface form B1 constraint channel / B2 constraint channel of B1 connecting rod / B2 connecting rod constraint, B1 pressing block 35, B2 pressing block 36, B3 pressing block 37 and C1 pressing block 38 are installed on the turnover support 39, the turnover support 39 is rotatably installed on the base 10 through B hinged shaft, the turnover support 39 is connected with B1 cylinder 40 for adjusting its overturning, A11 clamping groove, A12 clamping groove, B3 clamping groove are V-shaped grooves, A2 clamping groove, A3 clamping groove, A4 clamping groove are U-shaped grooves, A2 support block 23, A3 support block 24 are further provided with A1 vertical surface, A2 vertical surface for abutting with A1 short rod, A2 short rod respectively.Through the setting of A1 vertical surface, A2 vertical surface, A workpiece 01 can be accurately and reliably clamped, reliable abutting assembly between the workpieces is ensured, the reliability of clamping is improved, and the welding quality is ensured.Specifically, the turnover support 39 can be arranged in an E shape, the B1 pressing block 35 and the B2 pressing block 36 are respectively installed on the mounting rods on the two outer sides of the E-shaped turnover support 39, the C1 pressing block 38 and the B3 pressing block 37 are both installed on the mounting rod in the middle of the E-shaped turnover support 39, and the C1 plate body is in a convex shape.The A2 support block 23 is fixedly installed on the B2 support block 27, and the A1 support block is fixedly installed on the C1 support block 29.

[0030] The above scheme provided by the utility model can reliably realize clamping of the seat assembly, ensure welding quality and improve welding efficiency, simplify welding operation and reduce production cost.

[0031] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the utility model.The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A welding fixture for the production of car seats, characterized in that: The first clamping unit arranged on the base includes an A clamping assembly for clamping the A workpiece, a B clamping assembly for clamping the B workpiece, and a C clamping assembly for clamping the C workpiece, the A clamping assembly, the B clamping assembly and the C clamping assembly are used to make the A workpiece, the B workpiece and the C workpiece in the A state; the A state is that the A rod body and the B rod body are arranged in parallel and horizontally spaced, the C2 plate body and the middle part of the A rod body abut and the abutting part is in a state capable of being welded, the B1 short rod and the B2 short rod are respectively in parallel and abut against the A rod body and the abutting part is in a state capable of being welded, and the C workpiece is located between the B1 short rod and the B2 short rod. The first assembly is composed of the A workpiece, the B workpiece and the C workpiece, the A workpiece and the B workpiece are respectively composed of a folded rod piece, the A workpiece includes an A rod body arranged horizontally, both ends of the A rod body are respectively provided in a suspended manner with an A1 short rod and an A2 short rod, the lower ends of the A1 short rod and the A2 short rod are respectively provided in an inclined downward and outward extending manner with an A1 inclined rod and an A2 inclined rod, the length of the A2 inclined rod is less than the length of the A1 inclined rod, the A rod body is arranged vertically with the A1 inclined rod and the A2 inclined rod, the lower end of the A1 inclined rod is outwardly bent to provide an A1 rod body, and the A1 rod body is arranged in parallel with the A rod body; the B workpiece includes a B rod body arranged horizontally, both ends of the B rod body are respectively upwardly and vertically bent to provide a B1 short rod and a B2 short rod, the upper ends of the B1 short rod and the B2 rod body are respectively extended to provide a B1 connecting rod and a B2 connecting rod arranged horizontally, the end portions of the B1 connecting rod and the B2 connecting rod away from the B rod body are respectively provided with the B1 short rod and the B2 short rod outwardly, the B1 short rod is arranged closer to the A1 inclined rod than the B2 short rod, and the B1 short rod, the B2 short rod and the B rod body are all arranged in parallel; the C workpiece is composed of a folded plate piece, the C workpiece includes a C1 plate body arranged horizontally and a C2 plate body arranged vertically, and the C1 plate body has an assembly hole.

2. The welding fixture for the production of car seats according to claim 1, characterized in that: The A clamping assembly includes an A1 supporting portion for supporting the A rod body, an A2 supporting portion for supporting the A1 inclined rod, an A3 supporting portion for supporting the A2 inclined rod, an A4 supporting portion for supporting the A1 rod body, and an A1 pressing portion and an A2 pressing portion for pressing the A1 inclined rod and the A2 inclined rod respectively, and the A1 pressing portion and the A2 pressing portion are movably installed.

3. The welding fixture for the production of car seats according to claim 2, characterized in that: The B clamping assembly includes a B1 supporting portion and a B2 supporting portion for supporting the middle portions of the B1 connecting rod and the B2 connecting rod respectively, a B3 supporting portion for supporting the B rod body, and a B1 pressing portion, a B2 pressing portion and a B3 pressing portion for pressing the middle portions of the B1 connecting rod, the B2 connecting rod and the B rod body respectively.

4. The welding fixture for the production of car seats according to claim 2 or 3, characterized in that: The A1 supporting portion includes an A11 supporting block and an A12 supporting block, the A11 supporting block and the A12 supporting block are respectively provided with an A11 clamping groove and an A12 clamping groove for accommodating the body of the A rod body, the length directions of the A11 clamping groove and the A12 clamping groove are consistent with the length direction of the A rod body, the A11 supporting block is used to support the middle rod body of the A rod body, the A11 supporting block is located between the B1 connecting rod and the C workpiece, and the A2 supporting block supports the end portion of the A2 short rod provided on the A rod body.

5. The welding fixture for the production of car seats according to claim 4, characterized in that: The A2 supporting part and the A3 supporting part respectively comprise an A2 supporting block and an A3 supporting block, and the A2 supporting block and the A3 supporting block are respectively provided with an A2 inclined surface and an A3 inclined surface arranged obliquely, the A2 inclined surface and the A3 inclined surface are respectively provided with an A2 clamping groove and an A3 clamping groove for accommodating an A1 inclined rod and an A2 inclined rod, the A4 supporting part comprises an A4 supporting block, the A4 supporting block is provided with an A4 clamping groove for accommodating the A1 rod body, and the A1 pressing part and the A2 pressing part are respectively formed by an A1 pressing block and an A2 pressing block.

6. The welding fixture for the production of car seats according to claim 3, characterized in that: The B1 supporting part and the B2 supporting part respectively comprise a B1 supporting block and a B2 supporting block, the upper surfaces of the B1 supporting block and the B2 supporting block are respectively provided with a stepped surface structure, the stepped surface structure comprises a horizontal table surface and a vertical step surface, the table surface supports the B1 connecting rod and the B2 connecting rod, the B3 supporting part comprises a B3 supporting block, the B3 supporting block is provided with a B3 clamping groove for accommodating the B rod body, the length direction of the B3 clamping groove is consistent with the length direction of the B rod body, and the B1 pressing part, the B2 pressing part and the B3 pressing part are respectively formed by a B1 pressing block, a B2 pressing block and a B3 pressing block.

7. The welding fixture for the production of car seats according to claim 6, characterized in that: The C clamping assembly comprises a C1 supporting part for supporting a C1 plate body and a C1 pressing part for pressing the C1 plate body; the C1 supporting part comprises a C1 supporting block, and the upper surface of the C1 supporting block is provided with a C vacancy for accommodating the C1 plate body, the shape of the C vacancy is consistent with the shape of the C1 plate body, and the C vacancy is arranged by extending inwardly from the edge of the C1 supporting block; the C2 plate body is arranged by abutting against the side surface of the C1 supporting block, and the C1 pressing part is formed by a C1 pressing block.

8. The welding fixture for the production of car seats according to claim 7, characterized in that: The A1 pressing block and the A2 pressing block are respectively provided with an A1 pressing inclined surface and an A2 pressing inclined surface, the A1 pressing inclined surface and the A2 pressing inclined surface are respectively matched with and correspond to the A2 inclined surface and the A3 inclined surface, the A1 pressing block and the A2 pressing block are respectively hingedly installed on the base through an A1 hinge shaft and an A2 hinge shaft, and the A1 pressing block and the A2 pressing block are respectively connected with an A1 cylinder and an A2 cylinder for adjusting the overturning thereof.

9. The welding fixture for the production of car seats according to claim 7, characterized in that: The B1 pressing block and the B2 pressing block are respectively provided with a B1 pressing inclined surface and a B2 pressing inclined surface, the B1 pressing inclined surface and the B2 pressing inclined surface respectively form a B1 constraint channel and a B2 constraint channel of the B1 connecting rod and the B2 connecting rod on the table surface and the step surface of the stepped surface structure, the B1 pressing block, the B2 pressing block, the B3 pressing block and the C1 pressing block are all installed on an overturning support, the overturning support is rotatably installed on the base through a B hinge shaft, the overturning support is connected with a B1 cylinder for adjusting the overturning thereof, the A11 clamping groove, the A12 clamping groove and the B3 clamping groove are all V-shaped grooves, the A2 clamping groove, the A3 clamping groove and the A4 clamping groove are all U-shaped grooves, and the A2 supporting block and the A3 supporting block are further provided with an A1 vertical surface and an A2 vertical surface for respectively abutting against an A1 short rod and an A2 short rod.

10. The welding fixture for the production of car seats according to claim 1, characterized in that: The base is further provided with a second clamping unit for clamping a second assembly, the structure of the second assembly is symmetrical to that of the first assembly, and the structure of the first clamping unit is symmetrical to that of the second clamping unit.

Images