High-precision rear-row seat framework positioning clamp with safety air bag support

Abstract

The utility model discloses a high-precision rear seat framework positioning clamp with a safety air bag support, belongs to the technical field of seat framework welding positioning clamps, and solves the problems that in the prior art, the machining efficiency is low, size error accumulation is likely to be caused, and the product quality is affected in the mode that all components of a framework are welded in sequence. Comprising a clamp bottom plate, a central stamping part supporting and positioning module is arranged in the middle of the clamp bottom plate, a framework mounting hanger assembly welding and pressing mechanism is arranged above a headrest support supporting and positioning module, and a framework side shoulder pressing mechanism is arranged on the side portion of the assembly welding and pressing mechanism. The left side and the right side of the central stamping part supporting and positioning module are symmetrically provided with a safety air bag support supporting and positioning block and a safety air bag support pressing mechanism correspondingly. And a plurality of groups of framework steel wire positioning clamping blocks are arranged on the clamp bottom plate. The positioning device is reasonable in design, compact in structure, capable of accurately positioning all components of the seat framework and the safety air bag support, capable of simultaneously installing and welding all the components, capable of guaranteeing the size of a welded product, high in production efficiency and safe and reliable to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat frame welding positioning fixtures, and in particular relates to a high-precision rear seat frame positioning fixture with a safety airbag bracket. Background Art

[0002] With safety becoming increasingly important, installing airbags in rear seats can improve the safety of rear passengers in vehicle accidents. Furthermore, as the foundation for supporting the rear seats and airbags, the overall dimensional accuracy of the rear seat frame and the welding accuracy of the frame and airbag will affect the safety quality of the rear seats. However, due to the limitations of welding fixtures, the current production process typically involves welding each frame component sequentially. This traditional welding method not only has low processing efficiency and affects production cycle time, but also causes dimensional errors to accumulate, affecting the final welded product size and even causing the rear airbag to deviate significantly and fail to deploy. Therefore, it is necessary to improve the existing welding positioning fixture for rear seat frames with airbag brackets. Utility Model Content

[0003] The utility model is aimed at the above problems and provides a high-precision rear seat frame positioning fixture with an airbag bracket that can accurately position the various components of the seat frame and the airbag bracket. All components can be installed and welded at the same time, ensuring the size of the welded product, high production efficiency, and safe and reliable use.

[0004] The technical solution adopted by the present utility model is: the high-precision rear seat frame positioning fixture with airbag bracket includes a fixture base plate, which is characterized in that: a central stamping part supporting and positioning block for supporting the central armrest mounting bracket stamping part is provided in the middle of the fixture base plate, an upper cover plate clamping mechanism is provided at the upper end of the central stamping part supporting and positioning block, headrest bracket supporting and positioning blocks are symmetrically provided on the left and right sides of the upper cover plate clamping mechanism, a frame mounting bracket assembly welding clamping mechanism is provided above the headrest bracket supporting and positioning block, and a frame side shoulder clamping mechanism is provided on the side of the frame mounting bracket assembly welding clamping mechanism; a central stamping part clamping mechanism and a central armrest mounting reference plate clamping mechanism are provided in the middle of the central stamping part supporting and positioning block, a frame lower reinforcing connecting wire clamping mechanism is provided at the lower end of the central stamping part supporting and positioning block, the central stamping part Airbag bracket support positioning blocks are symmetrically arranged on the left and right sides of the component support positioning block and at positions corresponding to the edges of the seat frame, and an airbag bracket clamping mechanism is arranged above the airbag bracket support positioning block; a frame mounting hole gasket support positioning block is arranged on the lower side of the airbag bracket support positioning block, and a frame mounting leg clamping mechanism is arranged above the frame mounting hole gasket support positioning block; frame mounting bracket bending wire support positioning blocks are symmetrically arranged at the edges of both sides of the upper end of the clamp base plate, and a frame mounting bracket bending wire welding clamping mechanism is arranged above the frame mounting bracket bending wire support positioning block, and several groups of frame steel wire positioning clamps for supporting the seat frame steel wire are also arranged on the clamp base plate; start buttons for performing safety start with both hands are arranged on the left and right sides of the frame lower reinforced connecting wire clamping mechanism.

[0005] The upper cover plate clamping mechanism includes a vertically arranged upper cover plate clamping cylinder, and an upper cover plate clamping V-frame is provided on the swing arm of the upper cover plate clamping cylinder driving end; the central stamping part clamping mechanism includes a vertically arranged central stamping part clamping cylinder, and the telescopic end of the upper part of the central stamping part clamping cylinder is connected to the inner end of the central stamping part swinging pressure block arranged symmetrically on the left and right through a connecting block, and the middle part of the central stamping part swinging pressure block is also hinged to the upper end of the swinging pressure block hinge seat; the central armrest mounting reference plate clamping mechanism includes a vertically arranged mounting reference plate clamping cylinder, and an mounting base plate clamping square frame is provided on the swing arm of the mounting reference plate clamping cylinder driving end. The central armrest mounting bracket stamping is positioned and placed on the central stamping support positioning assembly block, and the central armrest mounting base plate is pressed by the mounting base plate pressing square frame of the central armrest mounting base plate pressing mechanism, and the upper cover plate pressing V-frame of the upper cover plate pressing mechanism is used to press the central armrest mounting upper cover plate and the middle hook of the frame, and the central stamping part swinging pressure blocks on both sides of the central stamping part pressing mechanism are used to press the central armrest mounting bracket stamping.

[0006] On either side of the central stamped support and positioning block are several sets of vertically arranged lateral wire-holding swing levers. The middle portions of these swing levers are hinged to the lugs on the sides of the central stamped support and positioning block, and their lower ends are hinged to the telescopic ends of lateral wire-holding cylinders arranged laterally at the bottom. These swing levers ensure a tight fit between the seat frame wires on both sides and the central armrest mounting bracket stamping, facilitating subsequent welding.

[0007] The under-frame reinforcement wire clamping mechanism includes a longitudinally arranged under-frame reinforcement wire clamping cylinder. A long clamping strip for the under-frame reinforcement wire is provided at the telescopic end of the clamping cylinder. The long clamping strip for the under-frame reinforcement wire clamping mechanism compresses and clamps the under-frame reinforcement wire.

[0008] The frame mounting bracket welding and clamping mechanism includes a longitudinally arranged mounting bracket welding and clamping cylinder, with a mounting bracket welding and clamping T-shaped frame installed on the swing arm at the driving end of the mounting bracket welding and clamping cylinder. The frame side shoulder clamping mechanism includes a vertically arranged side shoulder clamping cylinder, with a side shoulder clamping L-shaped frame installed on the swing arm at the driving end of the side shoulder clamping cylinder. The frame mounting bracket, seat frame steel wire, and headrest bracket are positioned on the headrest bracket support positioning block and the frame steel wire positioning clamp, respectively. The mounting bracket welding and clamping T-shaped frame of the frame mounting bracket welding and clamping mechanism and the side shoulder clamping L-shaped frame of the frame side shoulder clamping mechanism are used to clamp the frame mounting bracket, frame side shoulder area, and upper reinforcing connecting wire.

[0009] The airbag bracket clamping mechanism includes a vertically arranged airbag bracket clamping cylinder. An airbag bracket clamping E-shaped frame is mounted on the swing arm at the cylinder's driving end. This allows the airbag bracket to be positioned on the airbag bracket support block and secured in place by the airbag bracket clamping E-shaped frame.

[0010] The frame mounting leg clamping mechanism includes a vertically arranged mounting leg clamping cylinder. A mounting leg clamping block is provided on the swing arm at the driving end of the mounting leg clamping cylinder. The frame mounting hole gasket support and positioning block is also provided with a mounting hole gasket positioning pin. The frame mounting leg and the frame mounting hole gasket are positioned on the frame mounting hole gasket support and positioning block, and the mounting leg clamping block of the frame mounting leg clamping mechanism compresses and secures the frame mounting leg and the frame mounting hole gasket.

[0011] The frame-mounting hanger bend wire welding and clamping mechanism includes a vertically arranged bend wire welding and clamping cylinder. A bend wire welding and clamping cross-shaped bracket is provided on the swing arm at the drive end of the bend wire welding and clamping cylinder. A bend wire end support column is also provided on either side of the frame-mounting hanger bend wire support and positioning block. The frame-mounting hanger bend wire is positioned on the frame-mounting hanger bend wire support and positioning block, and the bend wire end support columns support the ends of the bend wire. The frame-mounting hanger bend wire welding and clamping cross-shaped bracket of the frame-mounting hanger bend wire welding and clamping mechanism clamps the bend wire, thereby forming a B-reference safety bracket through welding.

[0012] Below the frame mounting bracket assembly welding clamping mechanism and the airbag bracket clamping mechanism, a vertically arranged lifting cylinder is installed on the fixture base. After welding is completed and the clamping mechanisms are opened, the lifting cylinders can be extended and retracted to release the welded product from the positioning fixture, making it easier for operators to remove the product.

[0013] The fixture base is provided with a fixture turntable and a fixture support shaft at the left and right ends, respectively. The fixture turntable at one end is connected to the motor turntable at the output end of the drive motor, and the fixture support shaft at the other end is connected to the fixed support bearing, thereby driving the entire positioning fixture to rotate and meet the requirements of various welding angles.

[0014] The beneficial effects of the present invention are as follows: since the present invention adopts a fixture base plate with a central stamping part supporting and positioning block in the middle, an upper end of the central stamping part supporting and positioning block is provided with an upper cover plate clamping mechanism, and headrest bracket supporting and positioning blocks are symmetrically provided on the left and right sides of the upper cover plate clamping mechanism, a skeleton mounting bracket welding clamping mechanism is provided above the headrest bracket supporting and positioning block, and a skeleton side shoulder clamping mechanism is provided on the side of the skeleton mounting bracket welding clamping mechanism; a central stamping part clamping mechanism and a central armrest mounting reference plate clamping mechanism are provided in the middle of the central stamping part supporting and positioning block, a skeleton lower reinforcing connecting wire clamping mechanism is provided at the lower end of the central stamping part supporting and positioning block, and airbag bracket supporting and positioning blocks are symmetrically provided on the left and right sides of the central stamping part supporting and positioning block and at positions corresponding to the edge of the seat frame, and an airbag bracket supporting and positioning block is provided above the airbag bracket supporting and positioning block. Frame clamping mechanism; the lower side of the airbag bracket support positioning block is respectively provided with a frame mounting hole gasket support positioning block, and the upper part of the frame mounting hole gasket support positioning block is provided with a frame mounting leg clamping mechanism; the edges on both sides of the upper end of the fixture base plate are symmetrically provided with frame mounting bracket bending wire support positioning blocks, and the upper part of the frame mounting bracket bending wire support positioning block is provided with a frame mounting bracket bending wire welding clamping mechanism, and several groups of frame steel wire positioning clamps for supporting the seat frame steel wire are also provided on the fixture base plate, and the starting buttons are respectively provided on the left and right sides of the reinforced connecting wire clamping mechanism under the frame, so its design is reasonable and the structure is compact, which can accurately position the various components of the seat frame and the airbag bracket, and the overall product size can be adjusted on the same fixture to realize the simultaneous installation and welding of all components to ensure the size of the welded product, high production efficiency, fast production rhythm, and safe and reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present utility model.

[0016] Figure 2 yes Figure 1 A-axis view of the vehicle (removing the center armrest mounting bracket stamping and seat frame wire).

[0017] Figure 3 yes Figure 2 A schematic diagram of the arrangement structure of the central stamping part support and positioning block, the upper cover plate clamping mechanism, the central stamping part clamping mechanism, the central armrest installation reference plate clamping mechanism and the reinforced connecting wire clamping mechanism under the frame.

[0018] Figure 4 yes Figure 1 A schematic diagram of the arrangement structure of the skeleton wire positioning clamp block, headrest bracket support positioning block, skeleton mounting bracket welding clamping mechanism and skeleton side shoulder clamping mechanism.

[0019] Figure 5 yes Figure 2 A structural diagram of the skeleton installation bracket bending wire support positioning block and the skeleton installation bracket bending wire welding clamping mechanism.

[0020] Figure 6 yes Figure 1 A schematic diagram of the arrangement structure of the airbag bracket support positioning block, airbag bracket clamping mechanism, frame mounting hole gasket support positioning block and frame mounting leg clamping mechanism.

[0021] Explanation of the serial numbers in the figure: 1 fixture base plate, 2 fixture turntable, 3 fixture support shaft, 4 central stamping support positioning block, 5 upper cover clamping mechanism, 6 central stamping clamping mechanism, 7 central armrest mounting reference plate clamping mechanism, 8 headrest bracket support positioning block, 9 skeleton mounting bracket welding clamping mechanism, 10 skeleton steel wire positioning clamping block, 11 skeleton side shoulder clamping mechanism, 12 skeleton mounting bracket bending wire support positioning block, 13 skeleton mounting bracket bending wire welding clamping mechanism, 14 airbag bracket support positioning block, 15 airbag bracket clamping mechanism, 16 skeleton mounting hole gasket support positioning block, 17 skeleton mounting leg clamping mechanism, 18 take-up lifting cylinder, 19 skeleton lower reinforcement connection wire clamping mechanism, 20 start button, 21 central armrest mounting bracket stamping part, 22 seat skeleton steel wire, 23 upper cover clamping cylinder, 24 Upper cover plate pressing V-frame, 25 Central stamping part pressing cylinder, 26 Swinging pressure block hinge seat, 27 Central stamping part swinging pressure block, 28 Installation reference plate pressing cylinder, 29 Installation base plate pressing square frame, 30 Under the skeleton reinforcement connecting wire clamping cylinder, 31 Under the skeleton reinforcement connecting wire clamping strip pressure block, 32 Lateral steel wire pressing swing rod, 33 Lateral steel wire pressing cylinder, 34 Installation bracket welding pressing cylinder, 35 Installation bracket welding pressing T-frame, 36 Side shoulder pressing cylinder, 37 Side shoulder pressing L-frame, 38 Installation bracket bending wire welding pressing cylinder, 39 Installation bracket bending wire welding pressing cross-frame, 40 Installation bracket bending wire end support column, 41 Airbag bracket pressing cylinder, 42 Airbag bracket pressing E-frame, 43 Installation leg pressing cylinder, 44 Installation leg pressing block, 45 Installation hole gasket locating pin. DETAILED DESCRIPTION

[0022] according to Figures 1 to 6The specific structure of the present invention is described in detail. This high-precision rear seat frame positioning fixture with an airbag bracket includes a fixture base plate 1. A central stamping support and positioning assembly 4 is located in the middle of the fixture base plate 1, supporting the central armrest mounting bracket stamping 21. The upper end of the central stamping support and positioning assembly 4 is provided with an upper cover plate clamping mechanism 5 for clamping the central armrest mounting cover plate and the central hook of the frame. Also located in the middle of the central stamping support and positioning assembly 4 are a central stamping clamping mechanism 6 for clamping the central stamping of the central armrest mounting bracket, and a central armrest mounting base plate clamping mechanism 7 for clamping the central armrest mounting base plate.

[0023] The upper cover plate clamping mechanism 5 includes a vertically arranged upper cover plate clamping cylinder 23, and an upper cover plate clamping V-frame 24 is provided on the swing arm of the driving end of the upper cover plate clamping cylinder 23; the central stamping part clamping mechanism 6 includes a vertically arranged central stamping part clamping cylinder 25, and the telescopic end of the upper part of the central stamping part clamping cylinder 25 is connected to the inner end of the central stamping part swinging pressure block 27 arranged symmetrically on the left and right through a connecting block, and the middle part of the central stamping part swinging pressure block 27 is also hinged to the upper end of the swinging pressure block hinge seat 26; the central armrest mounting reference plate clamping mechanism 7 includes a vertically arranged mounting reference plate clamping cylinder 28, and a mounting base plate clamping square frame 29 is provided on the swing arm of the driving end of the mounting reference plate clamping cylinder 28. Furthermore, the central armrest mounting bracket stamping 21 is positioned and placed on the central stamping support positioning assembly 4, and the central armrest mounting base plate is pressed by the mounting base plate pressing square frame 29 of the central armrest mounting base plate pressing mechanism 7, and the upper cover plate pressing V-frame 24 of the upper cover plate pressing mechanism 5 is used to press the central armrest mounting upper cover plate and the middle hook of the skeleton, and the central stamping part swinging pressure block 27 on both sides of the central stamping part pressing mechanism 6 is used to press the central armrest mounting bracket stamping 21.

[0024] Moreover, several groups of vertically arranged lateral steel wire compression swing rods 32 are respectively provided on both sides of the central stamping support and positioning block 4. The middle part of the lateral steel wire compression swing rod 32 is hinged to the ear plate on the side of the central stamping support and positioning block 4, and the lower end of the lateral steel wire compression swing rod 32 is respectively hinged to the telescopic end of the lateral steel wire compression cylinder 33 arranged horizontally at the bottom; the lateral steel wire compression swing rods 32 arranged on both sides are used to make the seat frame steel wires 22 on both sides fit tightly with the central armrest mounting bracket stamping part 21 in the middle, which is convenient for subsequent welding.

[0025] The left and right sides of the upper cover plate clamping mechanism 5 and the upper end of the fixture base plate 1 are symmetrically provided with headrest bracket support and positioning blocks 8 for supporting and positioning the headrest bracket. A skeleton mounting bracket assembly welding and clamping mechanism 9 is provided above the headrest bracket support and positioning block 8. The side of the skeleton mounting bracket assembly welding and clamping mechanism 9 is provided with a skeleton side shoulder clamping mechanism 11 for clamping the skeleton side shoulder area and the upper reinforcing connecting wire. The skeleton mounting bracket assembly welding and clamping mechanism 9 includes a longitudinally arranged mounting bracket assembly welding and clamping cylinder 34, and a mounting bracket assembly welding and clamping T-shaped frame 35 is provided on the swing arm at the driving end of the mounting bracket assembly welding and clamping cylinder 34; the skeleton side shoulder clamping mechanism 11 includes a vertically arranged side shoulder clamping cylinder 36, and a side shoulder clamping L-shaped frame 37 is provided on the swing arm at the driving end of the side shoulder clamping cylinder 36. Thus, the skeleton mounting bracket, the seat skeleton steel wire 22 and the headrest bracket are positioned on the headrest bracket support positioning block 8 and the skeleton steel wire positioning clamp 10 respectively, and the skeleton mounting bracket welding and clamping mechanism 9 is used to weld and clamp the mounting bracket T-shaped frame 35 and the skeleton side shoulder clamping mechanism 11 is used to clamp the skeleton mounting bracket, the skeleton side shoulder part and the upper reinforcing connecting steel wire.

[0026] The lower end of the central stamping support and positioning assembly 4 is provided with a lower frame reinforcement connection wire clamping mechanism 19 for clamping the lower frame reinforcement connection wire. The lower frame reinforcement connection wire clamping mechanism 19 includes a longitudinally arranged lower frame reinforcement connection wire clamping cylinder 30, and the telescopic end of the lower frame reinforcement connection wire clamping cylinder 30 is provided with a lower frame reinforcement connection wire clamping strip pressure block 31; the lower frame reinforcement connection wire is clamped by the lower frame reinforcement connection wire clamping strip pressure block 31 of the lower frame reinforcement connection wire clamping mechanism 19.

[0027] Airbag bracket support and positioning blocks 14, used to support and position the airbag bracket, are symmetrically positioned on the left and right sides of the central stamping support and positioning block 4, corresponding to the edges of the seat frame. Above these blocks is an airbag bracket clamping mechanism 15, used to compress the airbag bracket. This mechanism 15 comprises a vertically arranged airbag bracket clamping cylinder 41, with an airbag bracket clamping E-shaped frame 42 mounted on the swing arm at the driving end of the cylinder 41. This mechanism then positions the airbag bracket on the airbag bracket support and positioning blocks 14 and secures it in place via the airbag bracket clamping E-shaped frame 42 of the clamping mechanism 15.

[0028] Frame mounting hole gasket support and positioning blocks 16 are provided on the lower side of the airbag bracket support and positioning block 14 and on the left and right sides of the lower end of the fixture base plate 1, respectively. A frame mounting leg clamping mechanism 17 is provided above the frame mounting hole gasket support and positioning block 16. The frame mounting leg clamping mechanism 17 includes a vertically arranged mounting leg clamping cylinder 43. A mounting leg clamping block 44 is provided on the swing arm at the driving end of the mounting leg clamping cylinder 43. A mounting hole gasket locating pin 45 is also provided on the frame mounting hole gasket support and positioning block 16. This is to position the frame mounting leg and the frame mounting hole gasket on the frame mounting hole gasket support and positioning block 16, and to secure the frame mounting leg and the frame mounting hole gasket using the mounting leg clamping block 44 of the frame mounting leg clamping mechanism 17.

[0029] At the two side edges of the upper end of the fixture base plate 1, there are symmetrically provided with skeleton mounting hanger bending wire support positioning blocks 12, and above the skeleton mounting hanger bending wire support positioning blocks 12, there is provided a skeleton mounting hanger bending wire welding clamping mechanism 13. The skeleton mounting hanger bending wire welding clamping mechanism 13 includes a vertically arranged mounting hanger bending wire welding clamping cylinder 38, and a mounting hanger bending wire welding clamping cross-shaped frame 39 is provided on the swing arm of the driving end of the mounting hanger bending wire welding clamping cylinder 38; mounting hanger bending wire end support columns 40 are also provided on both sides of the skeleton mounting hanger bending wire support positioning blocks 12; the skeleton mounting hanger bending wire is then positioned and placed on the skeleton mounting hanger bending wire support positioning blocks 12, and the end of the hanger bending wire is supported by the mounting hanger bending wire end support columns 40; and the mounting hanger bending wire is pressed and fixed by the mounting hanger bending wire welding clamping cross-shaped frame 39 of the skeleton mounting hanger bending wire welding clamping mechanism 13, thereby welding to form a B reference safety bracket.

[0030] In addition, on the fixture base plate 1, at positions corresponding to the seat frame steel wires 22, there are also several groups of frame wire positioning clamps 10 for supporting the seat frame steel wires 22; below the frame mounting bracket welding clamping mechanism 9 and the airbag bracket clamping mechanism 15, there are respectively provided with a pick-up and lifting cylinder 18 arranged vertically on the fixture base plate 1. Then, after the welding is completed and each clamping mechanism is opened, the pick-up and lifting cylinder 18 is used to extend and retract the welded product from the positioning fixture, making it convenient for the operator to remove the product. In addition, the left and right ends of the fixture base plate 1 are respectively provided with a fixture turntable 2 and a fixture support shaft 3; the fixture turntable 2 at one end is connected to the motor turntable at the output end of the drive motor, and the fixture support shaft 3 at the other end is connected to the fixed support bearing, thereby driving the entire positioning fixture to rotate and meet the requirements of various welding angles. The lower end of the clamp base plate 1 and the left and right sides of the reinforced connecting wire clamping mechanism 19 under the frame are respectively provided with start buttons 20 for performing safe start with both hands.

[0031] When using this high-precision rear seat frame positioning fixture with airbag bracket, first, the operator positions the central armrest mounting bracket stamping part 21 on the central stamping part support positioning assembly block 4, and uses the mounting base plate clamping square frame 29 of the central armrest mounting base plate clamping mechanism 7 to clamp the central armrest mounting base plate, and uses the upper cover plate clamping V-frame 24 of the upper cover plate clamping mechanism 5 to clamp the central armrest mounting upper cover plate and the middle hook of the frame, and uses the central stamping part swinging pressure blocks 27 on both sides of the central stamping part clamping mechanism 6 to clamp the central armrest mounting bracket stamping part 21. The pre-welded frame mounting bracket, seat frame wire 22, and headrest bracket are then positioned on the headrest bracket support and positioning block 8 and the frame wire positioning clamp 10, respectively. The frame mounting bracket, frame shoulder area, and upper reinforcing connecting wire are compressed using the mounting bracket welding and clamping T-shaped frame 35 of the frame mounting bracket assembly welding and clamping mechanism 9 and the shoulder compression L-shaped frame 37 of the shoulder compression mechanism 11. The airbag bracket is then positioned on the airbag bracket support and positioning block 14 and secured in place using the airbag bracket compression E-shaped frame 42 of the shoulder compression mechanism 15.

[0032] Afterwards, the seat frame steel wires 22 are positioned and placed on the various frame steel wire positioning clamps 10 on the fixture base plate 1, thereby forming a mesh frame steel wire structure on both sides. The lateral steel wires arranged on both sides of the central stamping support positioning block 4 are used to press the swing rods 32 to make the seat frame steel wires 22 on both sides fit tightly with the central armrest mounting bracket stamping 21 in the middle, facilitating subsequent welding. At the same time, the frame mounting legs and frame mounting hole gaskets are positioned and placed on the frame mounting hole gasket support positioning block 16, and the frame mounting legs and frame mounting hole gaskets are pressed and fixed using the mounting leg pressing blocks 44 of the frame mounting leg pressing mechanism 17. The frame lower reinforcing connecting wires are clamped using the frame lower reinforcing connecting wire clamping strip pressing blocks 31 of the frame lower reinforcing connecting wire clamping mechanism 19. In addition, the skeleton mounting bracket bend wire is positioned and placed on the skeleton mounting bracket bend wire support positioning block 12, and the end of the bracket bend wire is supported by the mounting bracket bend wire end support column 40; and the mounting bracket bend wire is pressed and fixed by the mounting bracket bend wire welding and clamping cross frame 39 of the skeleton mounting bracket bend wire welding and clamping mechanism 13.

[0033] When the various welding components of the seat frame are positioned and placed, the swing arms of each pressing part are manually pulled for pre-tightening, and the start button 20 is operated with both hands to pneumatically clamp each pressing part, and then the entire positioning fixture is driven to rotate to adapt to the angle of automatic welding; then, the automatic welding machine is used to perform high-precision positioning welding on the rear seat frame with the airbag bracket.

Claims

1. A high-precision rear seat frame positioning fixture with an airbag bracket, comprising a fixture base plate (1), characterized in that: The middle part of the clamp bottom plate (1) is provided with a central stamping part support and positioning group block (4) for supporting the central armrest mounting bracket stamping part (21), the upper end of the central stamping part support and positioning group block (4) is provided with an upper cover plate clamping mechanism (5), the left and right sides of the upper cover plate clamping mechanism (5) are symmetrically provided with headrest bracket support and positioning group blocks (8), the upper part of the headrest bracket support and positioning group block (8) is provided with a skeleton mounting bracket assembly welding clamping mechanism (9), and the side of the skeleton mounting bracket assembly welding clamping mechanism (9) is provided with a skeleton side shoulder clamping mechanism (11); the middle part of the central stamping part support and positioning group block (4) is provided with a central stamping part clamping mechanism (6) and a central armrest mounting reference plate clamping mechanism (7), the lower end of the central stamping part support and positioning group block (4) is provided with a skeleton lower reinforcement connection wire clamping mechanism (19), and the left and right sides of the central stamping part support and positioning group block (4) and the position corresponding to the edge of the seat skeleton are also respectively provided with a central stamping part clamping mechanism (6) and a central armrest mounting reference plate clamping mechanism (7), and the lower end of the central stamping part support and positioning group block (4) are provided with a skeleton lower reinforcement connection wire clamping mechanism (19), and the left and right sides of the central stamping part support and positioning group block (4) and the position corresponding to the edge of the seat skeleton are respectively provided with a central stamping part clamping mechanism (7) and a central armrest mounting reference plate clamping mechanism (7). Airbag bracket support positioning blocks (14) are symmetrically arranged, and an airbag bracket clamping mechanism (15) is arranged above the airbag bracket support positioning blocks (14); frame mounting hole gasket support positioning blocks (16) are respectively arranged on the lower side of the airbag bracket support positioning blocks (14), and a frame mounting leg clamping mechanism (17) is arranged above the frame mounting hole gasket support positioning blocks (16); frame mounting bracket bending wire support positioning blocks (12) are respectively symmetrically arranged at the two side edges of the upper end of the fixture base plate (1), and a frame mounting bracket bending wire welding clamping mechanism (13) is arranged above the frame mounting bracket bending wire support positioning blocks (12), and a plurality of groups of frame steel wire positioning clamping blocks (10) for supporting seat frame steel wires (22) are also arranged on the fixture base plate (1); start buttons (20) for performing safety start with both hands are respectively arranged on the left and right sides of the frame lower reinforced connecting wire clamping mechanism (19).

2. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized by: The upper cover plate clamping mechanism (5) includes a vertically arranged upper cover plate clamping cylinder (23), and an upper cover plate clamping V-frame (24) is provided on the swing arm of the driving end of the upper cover plate clamping cylinder (23); the central stamping part clamping mechanism (6) includes a vertically arranged central stamping part clamping cylinder (25), and the telescopic end of the upper part of the central stamping part clamping cylinder (25) is connected to the inner end of the central stamping part swinging pressure block (27) arranged symmetrically on the left and right through a connecting block, and the middle part of the central stamping part swinging pressure block (27) is also hinged to the upper end of the swinging pressure block hinge seat (26); the central armrest mounting base plate clamping mechanism (7) includes a vertically arranged mounting base plate clamping cylinder (28), and a mounting base plate clamping square frame (29) is provided on the swing arm of the driving end of the mounting base plate clamping cylinder (28).

3. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized by: A plurality of groups of vertically arranged lateral steel wire pressing swing rods (32) are respectively provided on both sides of the central stamping part supporting and positioning block (4), the middle portion of the lateral steel wire pressing swing rod (32) is hinged to the ear plate on the side of the central stamping part supporting and positioning block (4), and the lower end of the lateral steel wire pressing swing rod (32) is respectively hinged to the telescopic end of the lateral steel wire pressing cylinder (33) arranged laterally at the bottom.

4. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized in that: The under-frame reinforcing connection steel wire clamping mechanism (19) comprises a longitudinally arranged under-frame reinforcing connection steel wire clamping cylinder (30), and a under-frame reinforcing connection steel wire clamping strip pressing block (31) is provided at the telescopic end of the under-frame reinforcing connection steel wire clamping cylinder (30).

5. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized in that: The skeleton mounting bracket assembly welding and pressing mechanism (9) comprises a longitudinally arranged mounting bracket assembly welding and pressing cylinder (34), and a mounting bracket assembly welding and pressing T-shaped frame (35) is provided on the swing arm at the driving end of the mounting bracket assembly welding and pressing cylinder (34); the skeleton side shoulder pressing mechanism (11) comprises a vertically arranged side shoulder pressing cylinder (36), and a side shoulder pressing L-shaped frame (37) is provided on the swing arm at the driving end of the side shoulder pressing cylinder (36).

6. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized in that: The airbag support pressing mechanism (15) comprises a vertically arranged airbag support pressing cylinder (41), and an airbag support pressing E-shaped frame (42) is provided on a swing arm at the driving end of the airbag support pressing cylinder (41).

7. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized by: The frame mounting leg pressing mechanism (17) comprises a vertically arranged mounting leg pressing cylinder (43), a mounting leg pressing block (44) is provided on a swing arm at a driving end of the mounting leg pressing cylinder (43), and a mounting hole gasket positioning pin (45) is also provided on the frame mounting hole gasket support positioning block (16).

8. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized in that: The skeleton mounting rack wire bending welding clamping mechanism (13) comprises a vertically arranged mounting rack wire bending welding clamping cylinder (38), and a mounting rack wire bending welding clamping cross frame (39) is provided on the swing arm of the driving end of the mounting rack wire bending welding clamping cylinder (38); and mounting rack wire bending end support columns (40) are also provided on both sides of the skeleton mounting rack wire bending support positioning block (12).

9. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1 is characterized in that: A component-lifting cylinder (18) vertically arranged on the fixture bottom plate (1) is provided below the skeleton mounting bracket assembly welding clamping mechanism (9) and the airbag bracket clamping mechanism (15).

10. The high-precision rear seat frame positioning fixture with airbag bracket according to claim 1, characterized in that: A clamp turntable (2) and a clamp support shaft (3) are respectively provided at the left and right ends of the clamp base plate (1).

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