Tractor fender welding tool

By combining a pneumatic positioning system and a telescopic rod gear mechanism, the problem of cumbersome assembly and disassembly of tractor mudguard welding fixtures has been solved, achieving convenient positioning and efficient welding, thus improving production efficiency and quality.

CN223762518UActive Publication Date: 2026-01-06SHANDONG PUMA MACHINERY CO LTD
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Patent Information

Application Number
CN202520096314.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-01-06
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

The existing welding fixtures for tractor mudguards are fixed with bolts, which makes disassembly and assembly cumbersome, and the positioning is inaccurate, affecting welding quality and production efficiency.

Method used

A pneumatic positioning system is adopted, which uses an air hole array and an air pump to fix the mudguard. Combined with a telescopic rod and gear mechanism, it can achieve convenient positioning and rotation adjustment. The sealing strip improves the sealing performance and simplifies the disassembly and assembly process.

Benefits of technology

This technology enables convenient positioning and efficient assembly/disassembly of mudguards during welding, improving welding quality and production efficiency while reducing the labor intensity of workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tractor accessory welding, and particularly relates to a tractor fender welding tool which comprises a base, a vertical plate tool with a vertical plate clamping groove is arranged on the base, a top plate tool with a top plate clamping groove is arranged above the vertical plate tool, a vertical second-level telescopic rod is arranged on one side of the vertical plate tool, and a vertical third-level telescopic rod is arranged on the other side of the vertical plate tool. The second-stage telescopic rod comprises a second-stage telescopic end and a first-stage telescopic end, the tail end of the first-stage telescopic end is hinged to one side of the top plate tool, a vertical rack is arranged on the second-stage telescopic end, and a gear meshed with the rack is fixed to the hinged point of the top plate tool; a plurality of air hole arrays are arranged in the vertical plate clamping groove and the top plate clamping groove, each air hole array comprises a plurality of ventilation holes, and air connectors which communicate with the corresponding air hole arrays and are connected with an air suction pump are arranged on the vertical plate tool and the top plate tool. The tractor fender welding tool has the advantages of being simple in structure, convenient and fast to operate, accurate in positioning, convenient to disassemble and assemble and the like, and the welding efficiency of the tractor fender can be greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of tractor parts welding technology, and specifically relates to welding fixtures for tractor mudguards. Background Technology

[0002] Tractor mudguards are important components of tractors, and their main function is to prevent mud, water, and other debris from splashing onto the tractor body or other parts, thereby protecting the tractor's normal operation and extending its service life. Traditional tractor mudguards are usually welded together from a top plate and vertical plates. This structure requires welding fixtures with high stability and accuracy to ensure that the welded mudguards meet the usage requirements.

[0003] However, existing tractor mudguard welding fixtures mostly use bolts for fixing. While this method ensures welding stability to some extent, the disassembly and assembly process is relatively cumbersome. Before welding, workers need to spend a lot of time fixing the fixture and mudguard with bolts, and after welding, they need to spend just as much time removing all the bolts. This cumbersome disassembly and assembly process not only increases the labor intensity of workers but also leads to longer processing time and reduced productivity.

[0004] Furthermore, due to the limitations of bolt fixing methods, a large gap exists between the bolt and the hole, making it difficult for the tooling to achieve ideal positioning accuracy, which also affects the welding quality. This effect is particularly pronounced in mass production, further reducing production efficiency and product quality. Therefore, designing an easily disassembleable welding fixture for tractor mudguards is of paramount importance. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this utility model provides a welding fixture for tractor mudguards to solve the aforementioned problems.

[0006] This utility model discloses a welding fixture for tractor mudguards, comprising a base, on which a vertical plate fixture is mounted. One side of the vertical plate fixture has a vertical plate slot. Above the vertical plate fixture is a top plate fixture, with a top plate slot at its top. One side of the vertical plate fixture has a vertical secondary telescopic rod, comprising a secondary telescopic end and a primary telescopic end. The end of the primary telescopic end is hinged to one side of the top plate fixture. A vertical rack is mounted on the secondary telescopic end. A gear meshing with the rack is fixedly mounted at the hinge point of the top plate fixture. Both the vertical plate slot and the top plate slot have several air hole arrays, each including several vent holes. Both the vertical plate fixture and the top plate fixture have air connectors connecting to the corresponding air hole arrays. Two air connectors are connected to a suction pump.

[0007] Furthermore, an integrated plate is provided on one side of both the vertical plate fixture and the top plate fixture. The inner side of the integrated plate is provided with a communicating groove corresponding to the air hole array, and the air connector is provided on the outer side of the integrated plate and connected to the communicating groove.

[0008] Furthermore, each of the aforementioned air pore arrays and connecting grooves is provided with a closed-loop groove on its outer side, and each of the aforementioned closed-loop grooves is inlaid with a sealing strip.

[0009] Preferably, the sealing strip is a foam strip.

[0010] Furthermore, the depth of the closed-loop groove is 0.7 to 0.8 times the diameter of the foam strip.

[0011] Furthermore, the bottom of the upright plate fixture is provided with a turntable, which is rotatably connected to the top of the base, and a locking part is provided between the base and the turntable.

[0012] Furthermore, a telescopic guide rod is hinged to one side of the top plate fixture, and the hinge point of the top plate fixture, the telescopic guide rod, and the first-stage telescopic end are coaxially arranged. The end of the telescopic guide rod is fixedly connected to one side of the vertical plate fixture.

[0013] Compared with existing technologies, this tractor mudguard welding fixture has the advantages of simple structure, convenient operation, accurate positioning, and easy assembly and disassembly, which can greatly improve the welding efficiency of tractor mudguards. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of this utility model;

[0015] Figure 2 This is a right view of the first-stage telescopic end of this utility model in its retracted state;

[0016] Figure 3 This is a top view of the top plate fixture;

[0017] Figure 4 This is a front cross-sectional view of the integrated board.

[0018] In the diagram: 1. Base; 2. Vertical plate fixture; 3. Vertical plate slot; 4. Top plate fixture; 5. Top plate slot; 6. Secondary telescopic rod; 7. Secondary telescopic end; 8. Primary telescopic end; 9. Rack; 10. Gear; 11. Air vent array; 12. Vent hole; 13. Air connector; 14. Integrated plate; 15. Connecting groove; 16. Closed-loop groove; 17. Sealing strip; 18. Turntable; 19. Locking part; 20. Telescopic guide rod. Detailed Implementation

[0019] To better understand this utility model, the following is in conjunction with... Figures 1 to 4 The embodiments of this utility model will be explained in detail below.

[0020] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all relative to the direction of the text. Figure 1 The directions are based on "front, back, left, right, up, down".

[0021] This utility model discloses a welding fixture for tractor mudguards, comprising a base 1, on which a vertical plate fixture 2 is mounted. A vertical plate slot 3 is provided on one side of the vertical plate fixture 2 for engaging the vertical plate portion of the tractor mudguard. A top plate fixture 4 is provided above the vertical plate fixture 2, and a top plate slot 5 is provided on the top of the top plate fixture 4 for engaging the top plate portion of the tractor mudguard.

[0022] To enable flexible adjustment of the top plate fixture 4, a vertical secondary telescopic rod 6 is provided on one side of the vertical plate fixture 2. The secondary telescopic rod 6 includes a secondary telescopic end 7 and a primary telescopic end 8, with the end of the primary telescopic end 8 hinged to one side of the top plate fixture 4. A vertical rack 9 is provided on the secondary telescopic end 7, and a gear 10 that meshes with the rack 9 is fixedly provided at the hinge point of the top plate fixture 4. When the primary telescopic end 8 and the secondary telescopic end 7 of the secondary telescopic rod 6 extend and retract sequentially, the rack 9 will drive the gear 10 and the top plate fixture 4 to rotate when the primary telescopic end 8 extends and retracts. After reaching the retraction limit, the top plate fixture 4 completes a 180° rotation, thereby realizing the angle adjustment of the top plate fixture 4.

[0023] To secure the tractor mudguard, both the vertical plate slot 3 and the top plate slot 5 are equipped with several air hole arrays 11. Each air hole array 11 includes several ventilation holes 12. The arrangement of the ventilation holes 12 in each air hole array 11 corresponds to the shape of the corresponding vertical plate or top plate and is located on a smooth surface. Both the vertical plate fixture 2 and the top plate fixture 4 are equipped with air connectors 13 that connect to the corresponding air hole arrays 11. The two air connectors 13 are connected to an air pump (existing technology, workshop air source, used for supplying air to pneumatic tools). When the air pump operates, both air connectors 13 simultaneously receive suction, and their corresponding air hole arrays 11 also begin to draw air synchronously. This suction creates a vacuum on the contact surfaces of the top plate or vertical plate in the vertical plate slot 3 and the top plate slot 5, thereby securing the mudguard within the corresponding slot.

[0024] To optimize the arrangement and connection of the pore array 11, an integrated plate 14 is provided on one side of both the vertical plate fixture 2 and the top plate fixture 4. The inner side of the integrated plate 14 has a connecting groove 15 corresponding to the pore array 11, and the air connector 13 is located on the outer side of the integrated plate 14 and connects to the connecting groove 15. This allows for a more convenient arrangement and connection of the pore array 11.

[0025] To enhance the sealing performance between the pore array 11 and the corresponding top or vertical plate contact surface, a closed-loop groove 16 is provided on the outer side of each pore array 11 and the connecting groove 15, and a sealing strip 17 is embedded in each closed-loop groove 16. The sealing strip 17 is preferably a foam strip, which has good elasticity and sealing performance. The groove depth of the closed-loop groove 16 is 0.7 to 0.8 times the diameter of the foam strip, which ensures that the foam strip fits tightly in the closed-loop groove 16, further improving the sealing performance.

[0026] In addition, a turntable 18 is provided at the bottom of the upright fixture 2, and the turntable 18 is rotatably connected to the top of the base 1. This allows for rotational adjustment of the upright fixture 2. A locking part 19 is provided between the base 1 and the turntable 18, which can be used to fix the upright fixture 2 after its position has been adjusted.

[0027] To enhance the stability of the top plate fixture 4 during rotation, a telescopic guide rod 20 is hinged to one side of the top plate fixture 4. The hinge points of the top plate fixture 4, the telescopic guide rod 20, and the first-stage telescopic end 8 are coaxially aligned. The end of the telescopic guide rod 20 is fixedly connected to one side of the vertical plate fixture 2. Thus, when the top plate fixture 4 rotates, the telescopic guide rod 20 provides stable support and guidance.

[0028] The usage and principle of this utility model:

[0029] When using the tractor mudguard welding fixture provided by this invention, firstly, the top plate is installed upside down in the top plate slot 5, and the vertical plate is installed in the vertical plate slot 3. Then, the suction pump is started to evacuate the contact surface between each air hole array 11 and the corresponding top plate or vertical plate, and fix it in the top plate slot 5 or vertical plate slot 3.

[0030] Next, the primary telescopic end 8 and the secondary telescopic end 7 are retracted sequentially via the secondary telescopic rod 6. The retraction of the primary telescopic end 8 will cause the rack 9 to drive the gear 10 and the top plate fixture 4 to rotate 180°, so that the top plate slot 5 and its top plate face downwards and correspond to the vertical plate. At this time, the distance between the top plate fixture 4 and the vertical plate fixture 2 has been adjusted to a suitable position for welding.

[0031] Then, the retraction of the secondary telescopic end 7 completes the welding connection between the top plate fixture 4 and its top plate and the vertical plate below. At this point, the workers can begin welding. After welding is completed, the suction pump stops drawing vacuum, and the secondary telescopic rod 6 reverses its position (after the secondary telescopic end 7 opens, the primary telescopic end 8 opens), allowing the welded mudguard to be easily removed and the next round of welding to begin.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A welding fixture for tractor mudguards, characterised in that: The utility model provides a kind of vertical plate and top plate equipment, including base (1), vertical plate tooling (2) is provided on the base (1), vertical plate tooling (2) one side is equipped with vertical plate slot (3), top plate tooling (4) is provided above vertical plate tooling (2), top plate tooling (4) top is equipped with top plate slot (5), vertical plate tooling (2) one side is provided with vertical two-stage telescopic rod (6), two-stage telescopic rod (6) includes two-stage telescopic end (7) and first telescopic end (8), first telescopic end (8) end and top plate tooling (4) one side are hinged, two-stage telescopic end (7) is provided with vertical rack (9), top plate tooling (4) hinged point is fixedly provided with gear (10) engaged with rack (9);Vertical plate slot (3) and top plate slot (5) are provided with several air hole arrays (11) in, air hole array (11) includes several air holes (12), vertical plate tooling (2) and top plate tooling (4) are provided with air connector (13) that communicates corresponding air hole array (11), two air connectors (13) are connected after suction pump.

2. The tractor mudguard welding fixture as defined in claim 1 wherein: Vertical plate tooling (2) and top plate tooling (4) one side are provided with integrated plate (14), integrated plate (14) inner side is equipped with with air hole array (11) corresponding communication groove (15), air connector (13) is arranged on the outside of integrated plate (14) and is connected with communication groove (15).

3. The tractor fender welding fixture as defined in claim 2 wherein: The outside of each air hole array (11) and communication groove (15) is provided with a closed loop groove (16), and a sealing strip (17) is embedded in each closed loop groove (16).

4. The tractor fender welding fixture as defined in claim 3 wherein: The sealing strip (17) is a foam strip.

5. The tractor fender welding fixture of claim 4, wherein: The groove depth of the closed loop groove (16) is 0.7 to 0.8 times the diameter of the foam strip.

6. The tractor fender welding fixture as defined in claim 1 wherein: The bottom of the vertical plate tooling (2) is provided with a turntable (18), which is rotatably connected to the top of the base (1). A locking portion (19) is provided between the base (1) and the turntable (18).

7. The tractor mud guard welding fixture as defined in claim 1 wherein: The top plate tooling (4) is hinged with a telescopic guide rod (20), and the hinge points of the top plate tooling (4), the telescopic guide rod (20), and the first telescopic end (8) are coaxially arranged. The end of the telescopic guide rod (20) is fixedly connected to one side of the vertical plate tooling (2).