A front axle riveting tool device for a high-lift truck

Abstract

This utility model relates to the field of riveting fixtures for aerial work platforms, and discloses a riveting fixture for the front axle of an aerial work platform, including a fixture table, a first limiting component, a second limiting component, and a third limiting component. The workpiece is initially positioned by a bottom limiting post, and the adjustable internal expansion mechanism and external clamping mechanism work together to achieve stable fixation of the workpiece sidewall from the inside out. Sliding end positioning mechanisms are provided on both sides for precise positioning of the workpiece ends. A movable limiting rod and pressure plate structure are used at the top for quick insertion and clamping of the top of the workpiece. This utility model, through the coordinated operation of multiple components, achieves rapid, accurate, and reliable all-around positioning and clamping of the front axle of the aerial work platform, effectively solving the problems of inaccurate positioning and cumbersome operation of traditional fixtures, and significantly improving the efficiency and quality of riveting assembly.

Description

Technical Field

[0001] This utility model relates to the field of riveting fixtures for aerial work platforms, specifically a riveting fixture for the front axle of an aerial work platform. Background Technology

[0002] Existing technologies for assembling and riveting the front axle of aerial work platforms suffer from problems such as inaccurate positioning, unstable clamping, cumbersome operation, and low efficiency. Traditional tooling often struggles to reliably limit the simultaneous positioning of multiple front axle components, leading to inconsistent riveting quality. This invention addresses these issues by incorporating multiple sets of limiting components, enabling rapid and precise positioning and clamping of the front axle components from the bottom, sides, top, and ends, effectively improving riveting accuracy and assembly efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a riveting fixture for the front axle of a lift vehicle, which solves the problem that traditional fixtures cannot reliably limit the movement of multiple components of the front axle of a lift vehicle simultaneously.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a front axle riveting fixture for a lift vehicle, comprising a fixture table, a first limiting component, a second limiting component, and a third limiting component. Support frames are arranged opposite each other on the middle two sides of the fixture table. The top of the support frame is set in a "U" shape. A pressure plate is provided on the top of the support frame. The two ends of the pressure plate are movably connected to the top of the support frame through first bolts. First limiting components are provided on both sides of the support frame on the fixture table.

[0005] Preferably, the first limiting component includes a mounting base, a bidirectional lead screw is provided at the middle of the bottom end of the mounting base, the bidirectional lead screw passes through the middle of the bottom end of the mounting base and is rotatably connected to the mounting base, a handle is provided at the end of the bidirectional lead screw away from the tooling table, and limiting blocks are threadedly connected to both sides of the mounting base on the bidirectional lead screw. A connecting bracket is fixedly connected to the top of the mounting base. A second bolt is threaded onto one side wall of the connecting bracket above the mounting base. The output end of the second bolt on the mounting base is rotatably connected to the movable block. A second limit component is provided on the side of the mounting base away from the support frame.

[0006] Preferably, the second limiting component includes a base, a first mounting bracket, and a second mounting bracket. The base is positioned opposite to the side of the mounting bracket away from the support bracket. The first mounting bracket is laterally positioned on the side of the base near the mounting bracket. Multiple sets of first connecting rods are positioned opposite to each other on both sides of the first mounting bracket and are rotatably connected to one end of the first connecting rod. The inner side of the other end of the first connecting rod is rotatably connected to both sides of the second connecting rod. Second limiting posts are provided at both ends on the side of the second connecting rod away from the first mounting bracket. A mounting groove is provided in the middle of the side of the first mounting bracket near the tooling table. A protrusion is provided in the middle of the mounting groove. A support post is fixedly connected to the protrusion. The support post is used to support the first connecting rod. A second mounting bracket is longitudinally arranged on the side of the base away from the mounting seat. The top of the second mounting bracket is provided with a U-shaped through hole. The limiting rod passes through the U-shaped through hole in sequence and is movably connected to the U-shaped through hole. A movable limiting plate is provided on the top of the second mounting bracket. The movable limiting plate is provided with a through hole. A third bolt is provided in the through hole of the movable limiting plate. The bottom of the third bolt is threaded to the top of the second mounting bracket. The movable limiting plate is movably connected to the second mounting bracket through the third bolt. A third limiting component is provided on the side of the base away from the mounting seat.

[0007] Preferably, the third limiting component includes a third mounting bracket, the bottom of which is slidably connected to the top of the tooling table via a slide rail, the top of which is fixedly connected to the bottom of the support plate, and a third limiting post is provided on the side of the top of the support plate near the base.

[0008] Preferably, a first limiting post is provided on the tooling platform below the third limiting post.

[0009] Compared with the prior art, the present invention has the following beneficial effects: By setting up multiple sets of synergistic limiting components, rapid, precise, and stable all-around positioning and clamping of the front axle of the aerial work platform is achieved. Basic positioning and lateral clamping are achieved using the bottom first limiting post and adjustable lateral limiting blocks. A stable clamping force is provided externally through the movable connecting rod mechanism and the second limiting post in the second limiting component. Simultaneously, the cooperation of the limiting rod and the pressure plate reliably fixes the top of the front axle. Furthermore, an outward expansion force is applied internally by pushing the movable block through a second bolt, while externally, a sliding third limiting component positions both ends, collectively forming a three-dimensional constraint from the inside out and from the bottom up. This device effectively solves the problems of inaccurate positioning and cumbersome operation of traditional tooling, significantly improving the accuracy, stability, and operational efficiency of riveting assembly. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0011] The components are as follows: 1. Tooling table; 101. First limiting post; 2. Support frame; 201. Pressure plate; 202. First bolt; 3. Mounting base; 301. Two-way lead screw; 3011. Handle; 302. Limiting block; 303. Connecting frame; 304. Second bolt; 305. Movable block; 4. Base; 401. First mounting frame; 4011. Mounting groove; 402. First connecting rod; 4021. Second connecting rod; 4022. Second limiting post; 403. Protrusion; 4031. Support post; 404. Second mounting frame; 4041. U-shaped through hole; 405. Limiting rod; 406. Third bolt; 407. Movable limiting plate; 5. Third mounting frame; 501. Slide rail; 502. Support plate; 503. Third limiting post. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1 - Figure 4 A front axle riveting fixture for a lifting vehicle includes a fixture table 1, a first limiting component, a second limiting component, and a third limiting component. Support frames 2 are arranged opposite each other on the middle two sides of the fixture table 1. The top of the support frame 2 is set in a "U" shape. A pressure plate 201 is provided on the top of the support frame 2. The two ends of the pressure plate 201 are movably connected to the top of the support frame 2 by first bolts 202. The first limiting components are provided on both sides of the support frame 2 on the fixture table 1. The first limiting component includes a mounting base 3. A bidirectional screw 301 is provided at the middle of the bottom end of the mounting base 3. The bidirectional screw 301 passes through the middle of the bottom end of the mounting base 3 and is rotatably connected to the mounting base 3. A handle 3011 is provided at the end of the bidirectional screw 301 away from the tooling table 1. Limiting blocks 302 are threadedly connected to both sides of the mounting base 3 on the bidirectional screw 301. A connecting bracket 303 is fixedly connected to the top of the mounting base 3. A second bolt 304 is threadedly connected to one side wall of the connecting bracket 303 above the mounting base 3. The output end of the second bolt 304 on the mounting base 3 is rotatably connected to the movable block 305. A second limiting component is provided on the side of the mounting base 3 away from the support frame 2.

[0014] Through the above technical solution, by setting the support frame 2 and its top U-shaped structure, pressure plate 201 and first bolt 202, the steel pipe passing through the middle of the front axle of the lifting vehicle can be quickly clamped and fixed; by setting the mounting seat 3, double screw 301, handle 3011 and limit block 302 in the first limiting assembly, the positioning and clamping of the workpiece base can be adjusted synchronously from both sides; by setting the connecting frame 303, second bolt 304 and movable block 305, the supporting force can be applied from the inside of the workpiece to the outside, thereby enhancing the positioning stability.

[0015] This utility model provides a technical solution in which the second limiting component includes a base 4, a first mounting bracket 401, and a second mounting bracket 404. The mounting base 4 is disposed opposite to the side of the mounting base 3 away from the support bracket 2. The first mounting bracket 401 is horizontally disposed on the side of the base 4 near the mounting base 3. Multiple sets of first connecting rods 402 are disposed opposite to each other on both sides of the first mounting bracket 401 and are rotatably connected to one end of the first connecting rod 402. The inner side of the other end of the first connecting rod 402 is rotatably connected to both sides of the second connecting rod 4021. The second limiting post 4022 is disposed at both ends on the side of the second connecting rod 4021 away from the first mounting bracket 401. The mounting bracket 401 is disposed in the middle of the side of the first mounting bracket 401 near the tooling table 1. The mounting groove 4011 is disposed in the middle of the mounting groove 4011. A protrusion 403 is disposed in the middle of the protrusion 4011. A support post 4031 is fixedly connected to the protrusion 403. The support post 4031 is used to support the first connecting rod 402. A second mounting bracket 404 is longitudinally arranged on the side of the base 4 away from the mounting base 3. A U-shaped through hole 4041 is provided on the top of the second mounting bracket 404. A limiting rod 405 passes through the U-shaped through hole 4041 and is movably connected to the U-shaped through hole 4041. A movable limiting plate 407 is provided on the top of the second mounting bracket 404. A through hole is provided on the movable limiting plate 407. A third bolt 406 is provided in the through hole of the movable limiting plate 407. The bottom of the third bolt 406 is threadedly connected to the top of the second mounting bracket 404. The movable limiting plate 407 is movably connected to the second mounting bracket 404 through the third bolt 406. A third limiting component is provided on the side of the base 4 away from the mounting base 3.

[0016] Through the above technical solution, by setting a base 4 and a horizontally arranged first mounting bracket 401, and a first connecting rod 402, a second connecting rod 4021, and a second limiting post 4022 rotatably connected to it, and by using the protrusion 403 and support post 4031 in the mounting groove 4011 to support the first connecting rod 402, adaptive clamping and stable limiting from the outside of the workpiece are achieved. Furthermore, by setting a longitudinal second mounting bracket 404, a U-shaped through hole 4041, a limiting rod 405, a third bolt 406, and a movable limiting plate 407 on the base 4, quick insertion and clamping fixation of the top hole of the workpiece is achieved. This technical solution makes the lateral and top limiting operations of the workpiece more convenient and reliable, effectively enhancing the overall stability during the riveting process.

[0017] This utility model provides a technical solution in which the third limiting component includes a third mounting bracket 5. The bottom of the third mounting bracket 5 is slidably connected to the top of the tooling table 1 via a slide rail 501. The top of the third mounting bracket 5 is fixedly connected to the bottom of the support plate 502. A third limiting post 503 is provided on the side of the top of the support plate 502 near the base 4. The first limiting post 101 is provided on the tooling table 1 below the third limiting post 503.

[0018] Through the above technical solution, the sliding connection between the third mounting bracket 5 and the top of the tooling table 1 is achieved by setting the slide rail 501, so that the component can be flexibly moved and adjusted according to the size of the workpiece; by setting the support plate 502 and the third limiting post 503 located on its top, and cooperating with the first limiting post 101 preset on the tooling table 1, the through hole of the front axle end component of the lifting vehicle is quickly and accurately inserted, positioned and stably supported, effectively ensuring the alignment accuracy and overall stability of the two ends of the workpiece during the hoisting and riveting process.

[0019] The working principle of this utility model is as follows: During operation, the front axle workpiece of the lifting vehicle is first placed on the tooling table 1, with its bottom through hole fitted onto the first limiting post 101 for initial positioning. Then, the operator rotates the handle 3011 to drive the bidirectional lead screw 301 to rotate, causing the two limiting blocks 302 on both sides to move outward, applying an expansion force from the inside of the workpiece for initial positioning. Simultaneously, the operator operates the linkage mechanism composed of the first connecting rod 402 and the second connecting rod 4021, causing the second limiting post 4022 to move inward from the outside of the workpiece and clamp it, with the internal and external working together to stabilize and fix the sidewall of the workpiece. Next, the operator rotates the first connecting rod 402... Two bolts 304 push the movable block 305 outward to further enhance the internal support; then, the steel pipe is passed through the U-shaped opening of the support frame 2 and the through hole on the side wall of the workpiece, and the first bolt 202 is tightened to make the pressure plate 201 press the steel pipe. Then, according to the position of the end component to be hoisted, the third mounting frame 5 is moved along the slide rail 501 so that the third limiting post 503 is inserted into the through hole of the end component. Finally, the limiting rod 405 is passed through the U-shaped through hole 4041 of the second mounting frame 404 and the through hole at the top of the workpiece, and the third bolt 406 is tightened to make the movable limiting plate 407 press down and fix the top position to complete the final positioning.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A riveting fixture for the front axle of a lift vehicle, characterized in that: The tooling includes a tooling table (1), a first limiting component, a second limiting component and a third limiting component. Support frames (2) are arranged opposite each other on the middle two sides of the tooling table (1). The top of the support frame (2) is set in a "U" shape. A pressure plate (201) is set on the top of the support frame (2). The two ends of the pressure plate (201) are movably connected to the top of the support frame (2) by the first bolt (202). The first limiting component is set on both sides of the support frame (2) on the tooling table (1).

2. The front axle riveting tooling device of claim 1, wherein: The first limiting component includes a mounting base (3), and a bidirectional screw (301) is provided at the middle of the bottom end of the mounting base (3). The bidirectional screw (301) passes through the middle of the bottom end of the mounting base (3) and is rotatably connected to the mounting base (3). A handle (3011) is provided at the end of the bidirectional screw (301) away from the tooling table (1). Limiting blocks (302) are threadedly connected to both sides of the mounting base (3) on the bidirectional screw (301). The top of the mounting base (3) is fixedly connected to a connecting frame (303). A second bolt (304) is threaded onto one side wall of the connecting frame (303) above the mounting base (3). The output end of the second bolt (304) on the mounting base (3) is rotatably connected to the movable block (305). A second limiting component is provided on the side of the mounting base (3) away from the support frame (2).

3. The front axle riveting tooling device of claim 2, wherein: The second limiting component includes a base (4), a first mounting bracket (401), and a second mounting bracket (404). The mounting base (3) is positioned opposite the support frame (2) on the side away from the support frame (2). The first mounting bracket (401) is laterally positioned on the side of the base (4) near the mounting base (3). Multiple sets of first connecting rods (402) are positioned opposite each other on both sides of the first mounting bracket (401) and are rotatably connected to one end of the first connecting rod (402). The inner side of the other end of the first connecting rod (402) is connected to the second... The connecting rod (4021) is rotatably connected on both sides. The second connecting rod (4021) is provided with second limiting posts (4022) at both ends on the side away from the first mounting frame (401). The first mounting frame (401) is provided with a mounting groove (4011) in the middle of the side near the tooling table (1). A protrusion (403) is provided in the middle of the mounting groove (4011). A support column (4031) is fixedly connected to the protrusion (403). The support column (4031) is used to support the first connecting rod (402). A second mounting bracket (404) is longitudinally arranged on the side of the base (4) away from the mounting seat (3). A U-shaped through hole (4041) is provided on the top of the second mounting bracket (404). A limiting rod (405) passes through the U-shaped through hole (4041) and is movably connected to the U-shaped through hole (4041). A movable limiting plate (407) is provided on the top of the second mounting bracket (404). A through hole is provided on the movable limiting plate (407). A third bolt (406) is provided in the through hole of the movable limiting plate (407). The bottom of the third bolt (406) is threadedly connected to the top of the second mounting bracket (404). The movable limiting plate (407) is movably connected to the second mounting bracket (404) through the third bolt (406). A third limiting component is provided on the side of the base (4) away from the mounting seat (3).

4. The front axle riveting tooling device of claim 3, wherein: The third limiting component includes a third mounting bracket (5), the bottom of the third mounting bracket (5) is slidably connected to the top of the tooling table (1) via a slide rail (501), the top of the third mounting bracket (5) is fixedly connected to the bottom of the support plate (502), and a third limiting post (503) is provided on the side of the top of the support plate (502) near the base (4).

5. The front axle riveting tooling device of claim 4, wherein: The first limiting post (101) is provided on the tooling table (1) below the third limiting post (503).

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