Automobile seat backrest assembly fixture

Abstract

The utility model relates to an automobile seat backrest assembly fixture, which is used for assembling a backrest and a backrest framework and is characterized in that two positioning holes are respectively formed in metal plates on two sides of the backrest framework; the base is fixed on the assembly line; the angle adjusting assembly is arranged on the base and used for driving the backrest and the backrest framework to rotate synchronously; the backrest framework positioning assembly comprises a left positioning piece and a right positioning piece, and the left positioning piece and the right positioning piece are arranged at the left end and the right end of the angle adjusting assembly respectively; wherein the left positioning piece and the right positioning piece can be adjusted according to the distance between two positioning holes in the backrest framework and form pin hole fit; the supporting pieces are arranged on the side faces of the left positioning piece and the right positioning piece, the bottom of the backrest framework is connected with the supporting pieces in an abutting mode, and the angle of the clamp can be adjusted in the assembling process; in addition, the clamp can be universally used for different seat frameworks, and the flexibility is high.

Description

Technical Field

[0001] The utility model relates to seat assembly, in particular to a fixture for assembling an automobile seat backrest. Background Art

[0002] When assembling the backrest of an automobile seat with the backrest frame, a fixture is required for positioning. During the positioning process, pin-hole mating positioning is usually carried out by using the positioning holes on both sides of the backrest frame. However, the fixtures between the positioning holes on both sides of different backrest frames are different, resulting in non-universal fixtures and poor flexibility. Therefore, it is necessary to improve the defects existing in the prior art. Summary of the Utility Model

[0003] This application aims to solve the problems mentioned in the above background art.

[0004] A fixture for assembling an automobile seat backrest of the utility model is used for the assembly of the backrest and the backrest frame, and includes:

[0005] There are two positioning holes on each of the sheet metals on both sides of the backrest frame;

[0006] A base, and the base is fixed on the assembly line;

[0007] An angle adjustment component arranged on the base, and the angle adjustment component is used to drive the backrest and the backrest frame to rotate synchronously;

[0008] A backrest frame positioning component, and the backrest frame positioning component includes a left positioning member and a right positioning member, and the left positioning member and the right positioning member are respectively arranged at the left and right ends of the angle adjustment component;

[0009] Wherein, the left positioning member and the right positioning member can be adjusted according to the distance between the two positioning holes on the backrest frame and form pin-hole mating;

[0010] A support member, and the support member is arranged on the sides of the left positioning member and the right positioning member, and the bottom of the backrest frame abuts against the support member. By setting the backrest frame positioning component, the angle adjustment component and the support member, the seat frame is limited and adjusted in angle, which is convenient for assembly; in addition, by adjusting the left positioning member and the right positioning member to adapt to the distance between the positioning holes on different seat frames, this set of fixtures can be used for different seat frames, with high flexibility.

[0011] In a specific embodiment, the angle adjustment component includes two bearing seats fixed to the base. A shaft rod passes through the two bearing seats. A chuck is provided at the end of the shaft rod. A claw is provided on the inner side of the left positioning member. A return spring is sleeved on the shaft rod. During the assembly process when adjustment is required, the left positioning member is pulled to make the claw cooperate with different hole positions on the chuck, realizing angle adjustment. The structure is simple and highly practical.

[0012] In a specific embodiment, the left positioning member and the right positioning member have the same structure. The left positioning member includes a mounting plate fixedly connected to the claw and a fixing pin provided on the mounting plate. A rotating bar is rotatably connected to the mounting plate. One end of the rotating bar is fixed with a movable pin. A limiting plate is fixed on the mounting plate. At least two grooves for accommodating the rotating bar are provided on the limiting plate. A pressing spring is provided on the mounting plate. By rotating the rotating bar to drive the movable pin to rotate, the cooperation of the distance between the movable pin and the positioning pin is realized, with high flexibility.

[0013] In a specific embodiment, a locking member is provided on the side of the right positioning member. The locking member includes a support block and a clamping plate provided at the end of the support block. The clamping plate is rotatably connected to the support block. The locking member can prevent the displacement of the seat frame during the assembly process, with high stability.

[0014] In a specific embodiment, the support member is provided on the inner side of the mounting plate. A sliding groove is provided on the upper end surface of the support member, which is convenient for supporting the seat frame. The structure is simple and practical.

[0015] Advantageous effects: By providing the backrest frame positioning component, the angle adjustment component and the support member, the present utility model limits and adjusts the angle of the seat frame, which is convenient for assembly. In addition, by adjusting the left positioning member and the right positioning member to adapt to the spacing of the positioning holes on different seat frames, this set of jigs can be used universally for different seat frames, with high flexibility. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of an automotive seat backrest assembly jig in this embodiment;

[0017] Figure 2 is the structural schematic diagram of the angle adjustment component;

[0018] Figure 3 is the structural schematic diagram of the right positioning member and the locking member;

[0019] Figure 4 is the structural schematic diagram of the left positioning member and the support member.

[0020] In the figure: 100, fixture; 1, base; 2, angle adjustment component; 20, bearing seat; 21, shaft rod; 22, return spring; 23, chuck; 24, jaw; 3, left positioning member; 30, fixed pin; 31, movable pin; 32, rotating bar; 33, compression spring; 34, groove; 35, limiting plate; 4, right positioning member; 5, locking member; 50, support block; 51, clamping plate; 6, support member; 60, sliding groove. Specific implementation manner

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "counterclockwise", "clockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment

[0025] See Figures 1-4, an assembly fixture 100 for an automotive seat backrest in this embodiment, which is used for the assembly of the backrest and the backrest frame. There are two positioning holes on each of the sheet metals on both sides of the backrest frame; a base 1, and the base 1 is fixed on the assembly line; an angle adjustment component 2 provided on the base 1, and the angle adjustment component 2 is used to drive the backrest and the backrest frame to rotate synchronously; a backrest frame positioning component, which includes a left positioning member 3 and a right positioning member 4, and the left positioning member 3 and the right positioning member 4 are respectively arranged at the left and right ends of the angle adjustment component 2; wherein, the left positioning member 3 and the right positioning member 4 can be adjusted according to the distance between the two positioning holes on the backrest frame and form a pin-hole fit; a support member 6, and the support member 6 is arranged on the sides of the left positioning member 3 and the right positioning member 4, and the bottom of the backrest frame abuts against the support member 6. By setting the backrest frame positioning component, the angle adjustment component 2 and the support member 6, the seat frame is limited and adjusted in angle, which is convenient for assembly; in addition, by adjusting the left positioning member 3 and the right positioning member 4 to adapt to the distance between the positioning holes on different seat frames, different seat frames can use this set of fixtures, and the flexibility is high.

[0026] See Figure 1 and Figure 2 , the angle adjustment component 2 includes two bearing seats 20 fixed on the base 1, a shaft rod 21 is inserted through the two bearing seats 20, a chuck 23 is arranged at the end of the shaft rod 21, a claw 24 is arranged inside the left positioning member 3, and a return spring 22 is sleeved on the shaft rod 21. When adjustment is required during the assembly process, pull the left positioning member 3 to make the claw 24 and different hole positions on the chuck 23 cooperate to achieve angle adjustment. The structure is simple and the practicability is high.

[0027] See Figure 3 and Figure 4 , wherein, the left positioning member 3 and the right positioning member 4 have the same structure; wherein, the left positioning member 3 includes a mounting plate fixedly connected to the claw 24 and a fixed pin 30 arranged on the mounting plate. A rotating bar 32 is rotatably connected to the mounting plate, a movable pin 31 is fixed at one end of the rotating bar 32, a limiting plate 35 is fixed on the mounting plate, and at least two grooves 34 for accommodating the rotating bar 32 are arranged on the limiting plate 35. A pressing spring 33 is arranged on the mounting plate. By rotating the rotating bar 32 to drive the movable pin 31 to rotate, the distance between the movable pin 31 and the positioning pin is matched, and the flexibility is high.

[0028] See Figure 3, a locking member 5 is provided on the side surface of the right positioning member 4. The locking member 5 includes a support block 50 and a clamping plate 51 provided at the end of the support block 50. The clamping plate 51 is rotatably connected to the support block 50. The locking member 5 can prevent the seat frame from displacing during the assembly process, with high stability.

[0029] See Figure 4 , the support member 6 is provided inside the mounting plate. A sliding groove 60 is provided on the upper end surface of the support member 6, which is convenient for supporting the seat frame, with a simple and practical structure.

[0030] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An assembly fixture for an automotive seat back, used for the assembly of the seat back and the seat back frame, characterized in that, Including: There are two positioning holes on each of the two side sheet metals of the backrest frame; A base, and the base is fixed on the assembly line; An angle adjustment component arranged on the base, and the angle adjustment component is used to drive the backrest and the backrest frame to rotate synchronously; A backrest frame positioning component, and the backrest frame positioning component includes a left positioning member and a right positioning member, and the left positioning member and the right positioning member are respectively arranged at the left and right ends of the angle adjustment component; Wherein, the left positioning member and the right positioning member can be adjusted according to the distance between the two positioning holes on the backrest frame and form a pin-hole fit; A support member, and the support member is arranged on the sides of the left positioning member and the right positioning member, and the bottom of the backrest frame abuts against the support member.

2. The assembling fixture for an automobile seat backrest according to claim 1, wherein: The angle adjustment component includes two bearing seats fixed on the base, a shaft rod is inserted through the two bearing seats, a chuck is arranged at the end of the shaft rod, a claw is arranged on the inner side of the left positioning member, and a return spring is sleeved on the shaft rod.

3. The assembly jig for an automobile seat backrest according to claim 2, wherein: Among them, The left positioning member and the right positioning member have the same structure; Wherein, the left positioning member includes a mounting plate fixedly connected with the claw and a fixed pin arranged on the mounting plate, a rotating bar is rotatably connected to the mounting plate, a movable pin is fixed at one end of the rotating bar, a limiting plate is fixed on the mounting plate, at least two grooves for accommodating the rotating bar are arranged on the limiting plate, and a pressing spring is arranged on the mounting plate.

4. The assembly fixture for an automotive seat backrest according to claim 3, characterized in that: A locking member is arranged on the side of the right positioning member, and the locking member includes a support block and a clamping plate arranged at the end of the support block, and the clamping plate is rotatably connected with the support block.

5. The assembly fixture for an automotive seat backrest according to claim 4, characterized in that: The support member is arranged on the inner side of the mounting plate, and a sliding groove is arranged on the upper end surface of the support member.

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