Quick positioning tool for fire truck frame

CN224688304UActive Publication Date: 2026-08-28JIANGSU LEIN MASCH MFG CO LTD
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Patent Information

Application Number
CN202522129692.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-08-28
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种消防车架用的快速定位工装,旨在解决市面上消防车架在组装焊接过程中,虽借助定位工装实现部件快速定位,但现有工装多采用复杂结构,定位单元调节依赖多组丝杆联动,调节过程中还需反复测量纵梁间距、横梁垂直度等参数,且各丝杆间易因同步性误差导致定位偏差,且无法适用不同车型车架的需求的问题

Benefits of technology

本实用新型通过将定位板安装在消防车架上,并处于待焊接位置,此时工作人员根据消防车架拼装工艺要求,选择适配的装夹板,并将装夹板一端的组装块嵌合进组装座表面的开口处,并通过将锁紧螺钉穿过组装座后与组装块螺纹连接,此时方便将装夹板装配稳定,之后转动螺纹杆,带动推动板在固定板的表面进行推进,并带动限位块沿着固定板表面的开口进行定向滑动,进而带动装夹板对消防车架进行快速夹持,提升了对消防车架装配焊接的精度和效果。

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Abstract

The utility model belongs to the technical field of quick positioning tooling, specifically relates to a quick positioning tooling for fire engine frame, including the positioning board, the bottom surface of positioning board is installed with locking mechanism, the surface of positioning board is connected with fixed plate, the surface of positioning board close to fixed plate installs the range rule, the surface of fixed plate is connected with the side plate, the surface of side plate is connected with the threaded rod, the utility model discloses a positioning board is installed on the fire engine frame, and is in the position of waiting for welding, at this moment, the staff is according to the fire engine frame assembly process requirement, and is connected with the assembly block screw thread after being through the assembly seat, at this moment, the convenient clamping plate assembly is stable, then rotates the threaded rod, drives the push board to advance on the surface of fixed plate, and drives the limit block directional sliding along the opening of fixed plate surface, and then drives the clamping plate to carry out the quick clamping to the fire engine frame, improves the precision and effect of fire engine frame assembly welding.
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Description

Technical Field

[0001] This utility model belongs to the field of rapid positioning tooling technology, specifically relating to a rapid positioning tooling for fire truck frames. Background Technology

[0002] The quick positioning fixture for fire truck frames is an auxiliary device designed specifically for the production or maintenance of fire truck frames (the load-bearing structure that supports core components such as water pumps, water tanks, and pipelines). It is mainly used to quickly and accurately fix the relative positions of various components of the frame (such as longitudinal beams, cross beams, connecting brackets, etc.) to ensure dimensional accuracy and structural stability during welding, assembly, or testing. It is a key process equipment for improving the production efficiency and quality consistency of fire truck frames.

[0003] Specifically, although positioning fixtures are used to quickly position components during the assembly and welding process of fire truck frames on the market, existing fixtures often have complex structures. The adjustment of the positioning unit relies on the linkage of multiple sets of lead screws. During the adjustment process, parameters such as the spacing between longitudinal beams and the verticality of the cross beams need to be measured repeatedly. Furthermore, positioning deviations are easily caused by synchronization errors between the lead screws, and they cannot meet the needs of different vehicle frame models. Utility Model Content

[0004] The purpose of this utility model is to provide a quick positioning fixture for fire truck frames, which aims to solve the problem that although positioning fixtures can be used to quickly position components during the assembly and welding process of fire truck frames, existing fixtures on the market mostly adopt complex structures, the adjustment of the positioning unit relies on the linkage of multiple sets of lead screws, and parameters such as the longitudinal beam spacing and the verticality of the cross beams need to be repeatedly measured during the adjustment process. In addition, positioning deviations are easily caused by synchronization errors between the lead screws, and they cannot be adapted to the needs of different vehicle frame models.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick positioning fixture for a fire truck frame, comprising a positioning plate, a locking mechanism installed on the bottom surface of the positioning plate, a fixing plate connected to the surface of the positioning plate, and a distance measuring ruler installed on the surface of the positioning plate near the fixing plate; The surface of the fixing plate is connected to a side plate, and a threaded rod is connected through the surface of the side plate. One end of the threaded rod is connected to a bearing, and the other side of the bearing is connected to a push plate. One side of the push plate is connected to a clamping base, and the top of the other side of the clamping base is connected to an assembly base. One side of the assembly base is connected to a clamping plate, and the bottom surface of the push plate is connected to a limit block. The side of the clamping plate near the assembly base is connected to an assembly block, and both ends of the assembly base are connected through locking screws.

[0006] In order to enable the mounting block at the bottom of the rubber sheet to align with the mounting base, as a quick positioning tool for a fire truck frame according to this utility model, preferably, the threaded rod is threadedly connected to the side plate, and the threaded rod and the bearing liner form a rotating structure.

[0007] To facilitate the movement of the clamping base, as a quick positioning tool for a fire truck frame according to this utility model, preferably, a limiting groove is formed on the surface of the fixing plate near the limiting block, the limiting block has a T-shaped structure in side view, and the limiting block and the limiting groove on the surface of the fixing plate form a sliding connection structure.

[0008] To facilitate the replacement of the mounting plate, as a quick positioning tool for a fire truck frame according to this utility model, preferably, the mounting plate is fitted and connected to the opening on the surface of the assembly block and the assembly seat through the assembly block, and the locking screw passes through the assembly seat and is threadedly connected to the assembly block.

[0009] To facilitate the stable assembly of the positioning fixture, as a quick positioning fixture for a fire truck frame according to this utility model, preferably, the locking mechanism includes a two-way lead screw, a receiving block, a threaded block, a locking plate, and an anti-slip pad, with the two-way lead screw passing through the internal housing of the locking mechanism.

[0010] To facilitate the movement of the locking plate, as a quick positioning tool for a fire truck frame according to this utility model, preferably, the other end of the bidirectional lead screw is connected to a receiving block, and the surface of the bidirectional lead screw is threaded with two threaded blocks.

[0011] In order to facilitate the increase of friction between the fire truck frame and the positioning fixture, as a quick positioning fixture for the fire truck frame of this utility model, preferably, the bottom surface of the threaded block is connected to a locking plate, and one side of the locking plate is connected to an anti-slip pad, which is made of rubber.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention involves installing a positioning plate on a fire truck frame, positioning it for welding. At this point, workers select a suitable clamping plate according to the fire truck frame assembly process requirements. The assembly block at one end of the clamping plate is then fitted into the opening on the surface of the assembly base. A locking screw is passed through the assembly base and threaded into the assembly block, facilitating stable assembly of the clamping plate. The threaded rod is then rotated, causing the pushing plate to advance on the surface of the fixed plate and the limiting block to slide directionally along the opening on the surface of the fixed plate. This allows the clamping plate to quickly clamp the fire truck frame, improving the precision and effectiveness of the fire truck frame assembly and welding. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of the overall assembly structure of a quick-positioning tooling for fire truck frames.

[0014] Figure 2 A schematic diagram of the locking mechanism installation structure for a quick-positioning fixture used on a fire truck frame.

[0015] Figure 3 A schematic diagram showing the disassembled structure of the clamping plate for the quick positioning fixture used on fire truck frames.

[0016] Figure 4 A schematic diagram of the locking plate connection structure of a quick positioning fixture for fire truck frames.

[0017] In the diagram: 1. Positioning plate; 2. Locking mechanism; 3. Fixing plate; 4. Measuring ruler; 5. Side plate; 6. Threaded rod; 7. Bearing; 8. Push plate; 9. Clamping base; 10. Assembly base; 11. Clamping plate; 12. Limiting block; 13. Assembly block; 14. Locking screw; 15. Two-way lead screw; 16. Receiving block; 17. Threaded block; 18. Locking plate; 19. Anti-slip pad. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 The present invention provides the following technical solution: a quick positioning fixture for a fire truck frame, including a positioning plate 1, a locking mechanism 2 installed on the bottom surface of the positioning plate 1, a fixing plate 3 connected to the surface of the positioning plate 1, and a measuring ruler 4 installed on the surface of the positioning plate 1 near the fixing plate 3. A side plate 5 is connected to the surface of the fixed plate 3. A threaded rod 6 is connected through the surface of the side plate 5. A bearing 7 is connected to one end of the threaded rod 6. A push plate 8 is connected to the other side of the bearing 7. A clamping base 9 is connected to one side of the push plate 8. An assembly base 10 is connected to the top of the other side of the clamping base 9. A clamping plate 11 is connected to one side of the assembly base 10. A limit block 12 is connected to the bottom surface of the push plate 8. An assembly block 13 is connected to the side of the clamping plate 11 near the assembly base 10. Locking screws 14 are connected through both ends of the assembly base 10.

[0020] Preferably, the threaded rod 6 is threadedly connected to the side plate 5, and the threaded rod 6 and the inner liner of the bearing 7 form a rotating structure. In actual use, by rotating the threaded rod 6, it is convenient to move and adjust the clamping base 9. Preferably, a limiting groove is formed on the surface of the fixing plate 3 near the limiting block 12. The limiting block 12 has a T-shaped structure when viewed from the side, and the limiting block 12 and the limiting groove on the surface of the fixing plate 3 form a sliding connection structure. In actual use, the clamping base 9 is moved stably by sliding the limiting block 12 along the opening on the surface of the fixing plate 3.

[0021] Preferably, the clamping plate 11 is fitted and connected to the opening on the surface of the assembly base 10 via the assembly block 13, and the locking screw 14 passes through the assembly base 10 and is threadedly connected to the assembly block 13. In actual use, the clamping plate 11 is tightened by passing the locking screw 14 through the assembly base 10 and the assembly block 13, which facilitates quick replacement of the clamping plate 11.

[0022] Preferably, the locking mechanism 2 includes a bidirectional lead screw 15, a receiving block 16, a threaded block 17, a locking plate 18, and an anti-slip pad 19. The bidirectional lead screw 15 passes through the internal housing of the locking mechanism 2. In practical use, the locking mechanism 2 facilitates the quick assembly of the positioning plate 1.

[0023] Preferably, the other end of the bidirectional lead screw 15 is connected to a receiving block 16, and two threaded blocks 17 are threadedly connected to the surface of the bidirectional lead screw 15. In actual use, by sliding the threaded blocks 17 along the bidirectional lead screw 15, it is convenient to move the locking plate 18.

[0024] Preferably, a locking plate 18 is connected to the bottom surface of the threaded block 17, and an anti-slip pad 19 is connected to one side of the locking plate 18. The anti-slip pad 19 is made of rubber. In actual use, the use of the rubber anti-slip pad 19 increases the friction between the positioning fixture and the fire truck frame, ensuring the stability of the assembly.

[0025] The working principle of this utility model is as follows: First, the positioning plate 1 is installed on the fire truck frame and placed in the position to be welded. At this time, the workers select the appropriate clamping plate 11 according to the fire truck frame assembly process requirements, and fit the assembly block 13 at one end of the clamping plate 11 into the opening on the surface of the assembly base 10. The locking screw 14 is threaded through the assembly base 10 and connected to the assembly block 13. This makes it easy to assemble the clamping plate 11 stably. Then, the threaded rod 6 is rotated to drive the pushing plate 8 to advance on the surface of the fixed plate 3, and drive the limiting block 12 to slide in a direction along the opening on the surface of the fixed plate 3. This drives the clamping plate 11 to quickly clamp the fire truck frame, improving the accuracy and effect of the fire truck frame assembly and welding.

[0026] It is worth noting that when the positioning plate 1 is installed on the fire truck frame, the opening locking plate 18 is rotated. When the double-acting screw 15 is rotated, the threaded blocks 17 are driven to move closer to each other, and the locking plates 18 are driven to move closer to each other. This makes the anti-slip pad 19 on one side of the locking plate 18 fit tightly against the crossbeam of the fire truck frame, which facilitates the quick assembly of the positioning plate 1.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick positioning fixture for a fire truck frame, comprising a positioning plate (1), characterized in that: A locking mechanism (2) is installed on the bottom surface of the positioning plate (1), a fixing plate (3) is connected to the surface of the positioning plate (1), and a measuring ruler (4) is installed on the surface of the positioning plate (1) near the fixing plate (3). The surface of the fixed plate (3) is connected to a side plate (5), and a threaded rod (6) is connected through the surface of the side plate (5). One end of the threaded rod (6) is connected to a bearing (7), and the other side of the bearing (7) is connected to a push plate (8). One side of the push plate (8) is connected to a clamping base (9), and the top of the other side of the clamping base (9) is connected to an assembly base (10). One side of the assembly base (10) is connected to a clamping plate (11), and the bottom surface of the push plate (8) is connected to a limit block (12). The side of the clamping plate (11) near the assembly base (10) is connected to an assembly block (13), and both ends of the assembly base (10) are connected through locking screws (14).

2. The quick positioning fixture for a fire truck frame according to claim 1, characterized in that: The threaded rod (6) is threadedly connected to the side plate (5), and the threaded rod (6) and the bearing (7) liner form a rotating structure.

3. The quick positioning fixture for a fire truck frame according to claim 1, characterized in that: The fixed plate (3) has a limiting groove on its surface near the limiting block (12). The limiting block (12) has a T-shaped structure when viewed from the side. The limiting block (12) and the limiting groove on the surface of the fixed plate (3) form a sliding connection structure.

4. The quick positioning fixture for a fire truck frame according to claim 1, characterized in that: The clamping plate (11) is fitted and connected to the opening on the surface of the assembly base (10) through the assembly block (13), and the locking screw (14) passes through the assembly base (10) and is threadedly connected to the assembly block (13).

5. The quick positioning fixture for a fire truck frame according to claim 1, characterized in that: The locking mechanism (2) includes a two-way lead screw (15), a receiving block (16), a threaded block (17), a locking plate (18), and an anti-slip pad (19). The two-way lead screw (15) passes through the internal housing of the locking mechanism (2).

6. The quick positioning fixture for a fire truck frame according to claim 5, characterized in that: The other end of the bidirectional lead screw (15) is connected to a receiving block (16), and the surface of the bidirectional lead screw (15) is threaded with two threaded blocks (17).

7. A quick positioning fixture for a fire truck frame according to claim 6, characterized in that: The bottom surface of the threaded block (17) is connected to a locking plate (18), and one side of the locking plate (18) is connected to an anti-slip pad (19), which is made of rubber.