Leg rest assembly tooling

Abstract

The utility model belongs to chair manufacturing technical field especially a leg support assembly tool, in view prior art exists traditional leg support assembly relies on manual positioning and simple clamping tool, positioning deviation is big, and the efficiency is low, and it is difficult to synchronize positioning many components, and the step is complicated and is easy to appear misalignment etc. problem, present and propose the following scheme, including assembly tool main part, the assembly tool main part includes two support frames and mounting plate, the inclined surface fixed connection of mounting plate and two support frames still includes two first fixed components and a second fixed component, its all fixed mounting in the top of mounting plate, in the utility model, the leg support assembly tool through the synergies of symmetrical distribution's first fixed component and second fixed component, combine the positioning pin of third placing seat, the positioning groove of fourth placing seat and the auxiliary limit of fifth placing seat, can realize many components synchronous accurate positioning, effectively eliminate artificial error, ensure that assembly consistency is good.

Description

Technical Field

[0001] This utility model relates to the field of seat manufacturing technology, and in particular to a leg rest assembly fixture. Background Technology

[0002] As a crucial component of the seat structure, the assembly precision of the leg rest's frame directly impacts the overall product's stability and lifespan. However, traditional assembly fixtures still present the following problems in use:

[0003] In traditional assembly processes, leg support frame components are usually positioned and fixed manually, which results in problems such as large positioning deviations, low assembly efficiency, and poor operational consistency. In addition, existing tooling fixtures mostly use single bolt locking or simple clamping structures, which make it difficult to achieve synchronous and accurate positioning of multiple parts, and the operation steps are cumbersome, which can easily lead to part displacement or assembly misalignment.

[0004] To address the aforementioned problems, this utility model document proposes a leg support assembly fixture. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the reliance on manual positioning and simple clamping fixtures in the assembly of leg supports, large positioning deviations, low efficiency, difficulty in simultaneously positioning multiple parts, cumbersome steps and easy misalignment, and to propose a leg support assembly fixture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A leg support assembly fixture, comprising:

[0008] The assembly fixture body includes two support frames and a mounting plate, the mounting plate being fixedly connected to the inclined surfaces of the two support frames;

[0009] Two first fixing components and one second fixing component are fixedly installed on the top of the mounting plate, and the two first fixing components are symmetrically arranged.

[0010] The first fixing component includes a first pressing mechanism and a third placement seat, and the second fixing component includes a second pressing mechanism and a fourth placement seat;

[0011] The first pressing mechanism and the second pressing mechanism both include a driving cylinder, a rotating frame and a pressing plate. The piston rod of the driving cylinder is connected to one end of the pressing plate. The middle part of the pressing plate is hinged to the rotating frame. The driving cylinder drives the pressing plate to make lever movements around the rotating frame to press or release the parts.

[0012] The third placement seat is provided with a positioning pin, and the fourth placement seat is provided with a positioning groove. The positioning pin and the positioning groove are used for multi-dimensional positioning of the leg support frame components.

[0013] In one possible design, the third and fourth placement seats are located on one side of the first and second pressing mechanisms, respectively. The third placement seat cooperates with the first pressing mechanism to press the first type of component, and the fourth placement seat cooperates with the second pressing mechanism to press the second type of component.

[0014] In one possible design, a fifth placement seat is fixedly installed on one side of the fourth placement seat, and the fifth placement seat and the fourth placement seat together limit the assembly position of the second type of component.

[0015] In one possible design, a first placement seat and two second placement seats are also fixedly mounted on the top of the mounting plate. The first placement seat is located between the second fixing component and the two first fixing components, and the two second placement seats are located on the side of the second fixing component away from the first placement seat, for assisting in positioning the remaining leg support frame components.

[0016] In one possible design, a mounting base is fixed to the top of the drive cylinder, the piston rod passes through the mounting base and is connected to the rotating head, one end of the pressing plate is rotatably connected to the rotating head, and a pressing block is provided at the bottom of the pressing plate. The pressing block presses the components as the lever of the pressing plate moves.

[0017] In one possible design, the top of the mounting plate is provided with two handles, which are symmetrically distributed on both sides of the mounting plate for handling the main body of the assembly tooling.

[0018] In one possible design, the rotating frame is connected to the mounting base via a hinge shaft, and the pressing plate has a hinge hole in the middle that mates with the rotating frame, forming a lever fulcrum.

[0019] In one possible design, the positioning pins of the third placement seats of the two first fixing components are symmetrically arranged, and the two corresponding first pressing mechanisms are also symmetrically arranged to ensure the stable fixing of the components.

[0020] In this application, the operator can move the main body of the assembly fixture to the designated work station through the two handles on the top of the mounting plate, and classify and place the parts to be assembled of the leg support frame assembly in the corresponding positions; when placing, the corresponding parts are placed on the first and second placement seats, while other parts are placed on the top of the two third placement seats, as well as the fourth and fifth placement seats, and are precisely positioned by the corresponding positioning pins and positioning slots.

[0021] Then, the drive cylinders of the first and second pressing mechanisms are activated. The piston rod of the drive cylinder pushes the rotating head outward, which can drive the pressing plate to perform lever movement with the rotating frame as the fulcrum, thereby causing the pressing block at the end of the pressing plate to move downward, which can complete the pressing and fixing of the corresponding parts.

[0022] After the operator places each pre-positioned component in sequence, they can then use bolts to assemble and fix it to complete the assembly of the leg support frame. After assembly, the piston rods of multiple drive cylinders are retracted, which drives the pressing block at the end of the pressing plate to rise, thereby releasing the pressure on the parts. Then the operator can take out the finished leg support frame assembly.

[0023] Beneficial effects: In this utility model, the leg support assembly fixture, through the cooperation of two symmetrically arranged first fixing components and one second fixing component, combined with the positioning pin of the third placement seat, the positioning groove of the fourth placement seat and the auxiliary limiting of the fifth placement seat, can realize multi-dimensional precise positioning of each component of the leg support frame, effectively avoid the offset or misalignment problem caused by manual operation, and ensure assembly consistency.

[0024] In this utility model, the leg support assembly fixture adopts a structure design in which the first pressing mechanism and the second pressing mechanism are driven by a cylinder to drive the pressing plate to perform lever movement. The pressing block can quickly press and release the parts by extending and retracting the piston rod, which significantly reduces the operation intensity and improves the positioning efficiency.

[0025] In this utility model, the leg support assembly fixture can be easily moved to a designated workstation via the handle on the top of the mounting plate. The placement of each component is clear and unambiguous, and operators can start operating without complicated training, which greatly simplifies the assembly process and reduces the difficulty of operation.

[0026] In this invention, the leg support assembly fixture, through the synergistic action of the symmetrically distributed first and second fixing components, combined with the positioning pins of the third placement seat, the positioning grooves of the fourth placement seat, and the auxiliary limiting of the fifth placement seat, can achieve synchronous and precise positioning of multiple components, effectively eliminating human error and ensuring assembly consistency. The pressing mechanism adopts a design of a lever-type pressing plate driven by a drive cylinder, which can quickly complete the pressing and releasing of parts by extending and retracting the piston rod, significantly reducing the intensity of operation and improving efficiency. The overall layout of the fixture is modular, with clear and well-defined placement positions for each component, simplifying the operation process and balancing practicality and flexibility. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a leg support assembly tool proposed in this utility model;

[0028] Figure 2This is a schematic diagram of the main structure of the assembly tooling for a leg support assembly tooling proposed in this utility model.

[0029] Figure 3 This is a schematic diagram of the first fixing component of a leg support assembly fixture proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the second fixing component structure of a leg support assembly tool proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the pressing mechanism of a leg support assembly fixture proposed in this utility model.

[0032] In the diagram: 1. Leg support frame assembly; 2. Assembly fixture main body; 3. Support frame; 4. Mounting plate; 5. First fixing component; 6. First placement seat; 7. Second fixing component; 8. Second placement seat; 9. First pressing mechanism; 10. Third placement seat; 11. Positioning pin; 12. Second pressing mechanism; 13. Fourth placement seat; 14. Fifth placement seat; 15. Drive cylinder; 16. Mounting seat; 17. Rotating frame; 18. Rotating head; 19. Pressing plate; 20. Pressing block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] Example 1: Refer to Figure 1-5 An assembly tooling, comprising:

[0035] The assembly fixture body 2 consists of two support frames 3 and a mounting plate 4. The mounting plate 4 is welded to the inclined surfaces of the two support frames 3 to form a stable assembly fixture body 2 structure.

[0036] In this embodiment, two first fixing components 5 and one second fixing component 7 are fixedly installed on the top of the mounting plate 4. The two first fixing components 5 are symmetrically arranged to ensure that the components to be assembled into the leg support frame assembly 1 are pressed and positioned evenly and stably.

[0037] Furthermore, in this embodiment, the first fixing component 5 consists of a first pressing mechanism 9 and a third placement seat 10. Both the first pressing mechanism 9 and the third placement seat 10 are fixed to the top of the mounting plate 4 by bolts or other fixing methods, with the third placement seat 10 located on one side of the first pressing mechanism 9. A positioning pin 11 is fixedly installed on the top of the third placement seat 10. When a corresponding component is placed on the third placement seat 10, the positioning pin 11 can be inserted into the corresponding positioning hole of the component, providing precise positioning for the component and preventing the component from moving during assembly.

[0038] Furthermore, in this embodiment, the second fixing component 7 consists of a second pressing mechanism 12 and a fourth placement seat 13. The second pressing mechanism 12 and the fourth placement seat 13 are also fixed to the top of the mounting plate 4 by bolts or other fixing methods, with the fourth placement seat 13 located on one side of the second pressing mechanism 12. A positioning groove is provided on the top of the fourth placement seat 13; when a corresponding component is placed on the fourth placement seat 13, a specific part of the component can be embedded in the positioning groove for positioning. In addition, a fifth placement seat 14 is fixedly installed on one side of the fourth placement seat 13. The fifth placement seat 14 assists the fourth placement seat 13 in placing the corresponding component, ensuring the stable placement of the leg support frame components.

[0039] In this embodiment, a first placement seat 6 and two second placement seats 8 are also fixedly installed on the top of the mounting plate 4. The first placement seat 6 is located between the second fixing component 7 and the two first fixing components 5, and the two second placement seats 8 are located on the side of the second fixing component 7 away from the first placement seat 6. The first placement seat 6 and the two second placement seats 8 are used to assist in placing the leg support frame components to ensure stable and orderly assembly of the leg support frame assembly 1.

[0040] This application can be used in the field of seat manufacturing technology, or in other fields applicable to this application.

[0041] Example 2: Reference Figure 2 , 5 An improvement based on Example 1: a leg support assembly fixture, which is applied to the field of seat manufacturing technology;

[0042] In this embodiment, the first pressing mechanism 9 and the second pressing mechanism 12 have the same structure, both consisting of a driving cylinder 15, a rotating frame 17, and a pressing plate 19. A mounting base 16 is fixedly installed on the top of the driving cylinder 15, and one end of the piston rod of the driving cylinder 15 slides through the mounting base 16 and is fixedly mounted with a rotating head 18. The rotating frame 17 is hinged to the top of the mounting base 16 via a hinge shaft, and one end of the pressing plate 19 is rotatably connected to the rotating head 18 via a rotating shaft. The outer wall of the pressing plate 19 is rotatably connected to the rotating frame 17 via a rotating shaft. When the piston rod of the driving cylinder 15 extends or retracts, it can drive the pressing plate 19 to perform lever movement with the rotating frame 17 as a fulcrum, thereby achieving the lifting and lowering of one end of the pressing plate 19. A pressing block 20 is fixedly installed on the bottom of the pressing plate 19. When the pressing plate 19 falls, the pressing block 20 can contact the component placed on the corresponding placement seat, completing the pressing and fixing of the component.

[0043] In this embodiment, two handles are also fixedly installed on the top of the mounting plate 4. Workers can use the handles to move the main body 2 of the assembly fixture, making it convenient to move the assembly fixture to a suitable working position.

[0044] However, as is well known to those skilled in the art, the working principle and wiring method of the drive cylinder 15 are commonplace and are all conventional means or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] The working principle and usage process of this technical solution are as follows:

[0046] Operators can move the main body 2 of the assembly fixture to the designated work station through the two handles on the top of the mounting plate 4, and classify and place the parts to be assembled of the leg support frame assembly 1 in the corresponding positions; when placing, the corresponding parts are placed on the first placement seat 6 and the second placement seat 8, while other parts are placed on the top of the two third placement seats 10, the fourth placement seat 13, and the fifth placement seat 14 respectively, and are precisely positioned by the corresponding positioning pins 11 and positioning slots;

[0047] Then, the drive cylinders 15 of the first pressing mechanism 9 and the second pressing mechanism 12 are activated. The piston rod of the drive cylinder 15 pushes the rotating head 18 to extend outward, which can drive the pressing plate 19 to perform lever movement with the rotating frame 17 as the fulcrum, thereby causing the pressing block 20 at the end of the pressing plate 19 to move downward, which can complete the pressing and fixing of the corresponding parts.

[0048] After the operator places each pre-positioned component in sequence, they can then use bolts to assemble and fix it to complete the assembly of the leg support frame assembly 1. After assembly, the piston rods of multiple drive cylinders 15 are controlled to retract, which drives the pressing block 20 at the end of the pressing plate 19 to lift, thereby releasing the pressure on the parts. Then the operator can take out the finished leg support frame assembly 1.

[0049] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leg support assembly fixture, characterized in that, include: Assembly fixture body (2), the assembly fixture body (2) includes two support frames (3) and mounting plate (4), the mounting plate (4) is fixedly connected to the inclined surface of the two support frames (3); Two first fixing components (5) and one second fixing component (7) are fixedly installed on the top of the mounting plate (4), and the two first fixing components (5) are symmetrically arranged; The first fixing component (5) includes a first pressing mechanism (9) and a third placement seat (10), and the second fixing component (7) includes a second pressing mechanism (12) and a fourth placement seat (13). The first pressing mechanism (9) and the second pressing mechanism (12) both include a driving cylinder (15), a rotating frame (17) and a pressing plate (19). The piston rod of the driving cylinder (15) is connected to one end of the pressing plate (19). The middle part of the pressing plate (19) is hinged to the rotating frame (17). The driving cylinder (15) drives the pressing plate (19) to make lever movements around the rotating frame (17) to press or release the parts. The third placement seat (10) is provided with a positioning pin (11), and the fourth placement seat (13) is provided with a positioning groove. The positioning pin (11) and the positioning groove are used for multi-dimensional positioning of the leg support frame components.

2. The leg support assembly fixture according to claim 1, characterized in that, The third placement seat (10) and the fourth placement seat (13) are located on one side of the first pressing mechanism (9) and the second pressing mechanism (12), respectively. The third placement seat (10) cooperates with the first pressing mechanism (9) to press the first type of component, and the fourth placement seat (13) cooperates with the second pressing mechanism (12) to press the second type of component.

3. The leg support assembly fixture according to claim 2, characterized in that, A fifth placement seat (14) is fixedly installed on one side of the fourth placement seat (13), and the fifth placement seat (14) and the fourth placement seat (13) together limit the assembly position of the second type of component.

4. The leg support assembly fixture according to claim 1, characterized in that, The top of the mounting plate (4) is also fixedly mounted with a first placement seat (6) and two second placement seats (8). The first placement seat (6) is located between the second fixing component (7) and the two first fixing components (5). The two second placement seats (8) are located on the side of the second fixing component (7) away from the first placement seat (6) and are used to assist in positioning the remaining leg support frame components.

5. The leg support assembly fixture according to claim 1, characterized in that, The top of the drive cylinder (15) is fixed with a mounting base (16), the piston rod passes through the mounting base (16) and is connected to the rotating head (18), one end of the pressing plate (19) is rotatably connected to the rotating head (18), and the bottom of the pressing plate (19) is provided with a pressing block (20), which presses the components with the lever movement of the pressing plate (19).

6. The leg support assembly fixture according to any one of claims 1 to 5, characterized in that, The top of the mounting plate (4) is provided with two handles, which are symmetrically distributed on both sides of the mounting plate (4) for handling the assembly fixture body (2).

7. The leg support assembly fixture according to claim 5, characterized in that, The rotating frame (17) is connected to the mounting base (16) by a hinge shaft. The middle part of the pressing plate (19) is provided with a hinge hole that cooperates with the rotating frame (17) to form a lever fulcrum.

8. The leg support assembly fixture according to claim 1, characterized in that, The positioning pins (11) of the third placement seats (10) of the two first fixing components (5) are symmetrically arranged, and the two corresponding first pressing mechanisms (9) are also symmetrically arranged to ensure the stable fixing of the parts.

Images