Universal tool for welding fork connecting rod of forklift

Abstract

The utility model relates to the technical field of machine manufacturing, in particular to a universal tool for welding a fork connecting rod of a forklift. The utility model provides a universal tool for welding a fork connecting rod of a forklift. The tool comprises a bottom plate, and the top of the bottom plate is slidably connected with a shaft sleeve positioning support, a first square tube limiting module, a second square tube limiting module and a tail end positioning support from left to right. Positioning grooves are formed in the two sides of the top of the bottom plate and matched with the limiting blocks and the sliding blocks at the bottom of the tail end positioning support to achieve sliding connection. A U-shaped groove is formed in the bottom plate, and fixing holes are formed in all the components and located over the U-shaped groove. The right side of the tail end positioning support is provided with a limiting groove and a nut limiting step pin, and the upper end of the tail end positioning support is provided with a threaded hole connected with a clamping bolt. The universal tool has the advantages that the space is saved, the cost is reduced, the welding quality is improved, the size and shape consistency of the connecting rod is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a general-purpose tooling for welding forklift fork linkages. Background Technology

[0002] The forklift forks are connected to the adjustment mechanism and roller arms via linkages, a connection method that plays a crucial role in the overall operation of the forklift. The adjustment mechanism can precisely control the fork height according to different work requirements, thereby improving the forklift's adaptability and work efficiency. For example, when loading and unloading goods of different heights, operators can easily adjust the forks to the appropriate height using the adjustment mechanism, greatly improving work convenience and safety. Different models within the same series have the same fork linkage structure, with consistent connection methods at both ends, indicating that the manufacturer intentionally maintains a certain degree of versatility in the design. This design philosophy not only facilitates production and maintenance but also provides convenience for subsequent improvements and upgrades. The same connection method means that similar methods can be used for positioning and fixing, providing important clues for developing universal tooling. For example, a universal positioning device can be designed to accommodate fork linkages of different lengths, thereby achieving accurate fixing of the linkages. The main differences between fork linkages of different models lie in their varying lengths and numerous size specifications. This reflects the different needs of forklifts in different application scenarios for the range of fork height adjustment. Forklifts operating in narrow warehouse aisles may require shorter fork links to better adapt to space constraints, while forklifts used in large logistics centers may require longer fork links to meet higher stacking requirements.

[0003] However, this dimensional variation presents challenges to production. Since traditional tooling can only be used for welding connecting rods of one length, producing connecting rods of various sizes requires a large number of different toolings. This not only increases production costs but also occupies significant production space. In a medium-sized forklift production workshop, dozens or even hundreds of different sizes of tooling may need to be stored. These toolings occupy a large amount of warehouse space, increasing the difficulty and cost of inventory management. One tooling unit corresponds to one connecting rod length, resulting in mountains of tooling piled up on the production floor. This tooling occupies valuable production space, making the workshop appear cluttered. In some production workshops, the height of the tooling piles even exceeds human height, affecting not only the cleanliness of the working environment but also posing safety hazards. Furthermore, the large number of tooling units requires dedicated storage areas and management measures, further increasing production costs. Space waste also affects production efficiency. Because tooling occupies a large amount of space, workers need to spend more time and effort finding and moving suitable tooling during operations. This not only reduces production efficiency but also increases the labor intensity of workers. In an urgent production task, if workers need to spend a lot of time finding suitable tooling, it may cause production delays and affect the company's economic benefits. Utility Model Content

[0004] To completely solve the problem of existing tooling lacking universal compatibility, where each tooling unit corresponds to a specific length of connecting rod welding, resulting in tooling accumulation on the production floor, wasted space, and time-consuming and labor-intensive tooling switching and handling, this utility model proposes the following technical solution:

[0005] A general-purpose tooling for welding forklift fork linkages includes a base plate, characterized in that the top of the base plate is connected from left to right to a bushing positioning support, a first square tube limiting block, a second square tube limiting block, and a tail end positioning support, the bushing positioning support is movably connected to a bushing pin, and the tail end positioning support is movably connected to a nut limiting step pin.

[0006] Preferably, the connection between the bushing positioning support and the base plate is a fixed connection, and the connection between the first square tube limiting block, the second square tube limiting block, the tail end positioning support and the base plate is a sliding connection.

[0007] Preferably, the top of the base plate is provided with positioning grooves on both sides, and the bottom of the first square tube limiting block, the second square tube limiting block, and the tail end positioning support are fixedly connected with sliding blocks.

[0008] The sliding connection between the first square tube limiting block, the second square tube limiting block, the tail end positioning support and the base plate is achieved through the sliding cooperation of the positioning groove and the sliding block.

[0009] Preferably, the base plate is provided with a U-shaped groove that penetrates the base plate; the first square tube limiting block, the second square tube limiting block, and the tail end positioning support are all provided with fixing holes, and the fixing holes of the first square tube limiting block, the second square tube limiting block, and the tail end positioning support are all located directly above the U-shaped groove.

[0010] Preferably, the bushing positioning support is provided with mounting seats on both the left and right sides, and each mounting seat on both sides of the bushing positioning support is provided with a slot. The bushing pin is connected to the bushing positioning support by inserting the bushing pin into the slot of the mounting seat on both sides of the bushing positioning support.

[0011] Preferably, the tail end positioning support has a limiting groove at its rear end, the limiting groove passes through the tail end positioning support, and a nut limiting step pin is movably connected in the limiting groove. The upper end of the tail end positioning support has a threaded hole, the threaded hole communicates with the limiting groove, and a clamping bolt is threadedly connected to the threaded hole.

[0012] Preferably, a fixing seat is provided above the first square tube limiting block and the second square tube limiting block, and a quick clamp is installed above the first square tube limiting block and the second square tube limiting block, and the quick clamp and the fixing seat are located on the same plane.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model of universal tooling can be applied to connecting rods of various lengths, reducing the number of tooling components and thus saving space on the production site.

[0015] 2. This utility model reduces tooling manufacturing costs because it eliminates the need to create specialized tooling for each length of connecting rod. It also reduces tooling storage and management costs.

[0016] 3. The bushing pin, square tube limiting block and tail end positioning support of this utility model bushing positioning support can be matched to accurately position and fix the fork connecting rod, ensure the stability of the connecting rod position during the welding process and improve the welding quality.

[0017] 4. Because the universal tooling of this utility model can uniformly position and fix connecting rods of different lengths, the welded connecting rods have good consistency in size and shape, which is beneficial to subsequent assembly and use.

[0018] 5. The positioning groove on the base plate of this utility model cooperates with the sliding blocks at the bottom of each component, enabling each positioning support to slide and adjust its position quickly and accurately on the base plate. This design allows operators to quickly adjust the tooling according to connecting rods of different lengths, eliminating the need for complex measurement and adjustment operations, and further improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a universal tooling for welding forklift fork linkages according to the present invention.

[0020] In the diagram: 1. Base plate; 2. Bushing positioning support; 3. Bushing pin; 4. First square tube limiting block; 5. Second square tube limiting block; 6. Tail end positioning support; 7. Nut limiting step pin; 8. Clamping bolt; 9. Positioning groove; 10. Sliding block; 11. U-shaped groove; 12. Limiting groove; 13. Threaded hole; 14. Fixing hole; 15. Mounting seat; 16. Fixing seat; 17. Quick clamp. Detailed Implementation

[0021] A general-purpose tooling for welding forklift fork linkages, characterized by a base plate 1, wherein the top of the base plate 1 is connected from left to right to a bushing positioning support 2, a first square tube limiting block 4, a second square tube limiting block 5, and a tail end positioning support 6; the bushing positioning support 2 is movably connected to a bushing pin 3; and the tail end positioning support 6 is movably connected to a nut limiting step pin 7. The bushing positioning support 2 is fixedly connected to the base plate 1, while the first square tube limiting block 4, the second square tube limiting block 5, and the tail end positioning support 6 are slidably connected to the base plate 1.

[0022] The base plate 1 has positioning grooves 9 on both sides of its top. Sliding blocks 10 are fixedly connected to the bottom of the first square tube limiting block 4, the second square tube limiting block 5, and the tail-end positioning support 6. The sliding connection between the first square tube limiting block 4, the second square tube limiting block 5, the tail-end positioning support 6, and the base plate 1 is achieved through the sliding engagement of the positioning grooves 9 and the sliding blocks 10. The base plate 1 has a U-shaped groove 11 that penetrates through it. The first square tube limiting block 4, the second square tube limiting block 5, and the tail-end positioning support 6 all have fixing holes 14, which are located directly above the U-shaped groove 11.

[0023] The bushing positioning support 2 has mounting seats 15 on both its left and right sides. Each mounting seat 15 has a slot. The bushing pin 3 is connected to the bushing positioning support 2 by inserting the bushing pin 3 into the slots of the mounting seats 15 on both sides of the bushing positioning support 2. The tail end positioning support 6 has a limiting groove 12 at its rear end, which penetrates the tail end positioning support 6. A nut limiting step pin 7 is movably connected within the limiting groove 12. The upper end of the tail end positioning support 6 has a threaded hole 13, which communicates with the limiting groove 12. A clamping bolt 8 is threadedly connected to the threaded hole 13. A fixing seat 16 is provided above both the first square tube limiting block 4 and the second square tube limiting block 5. A quick clamp 17 is installed above both the first square tube limiting block 4 and the second square tube limiting block 5. The quick clamp 17 and the fixing seat 16 are located on the same plane.

[0024] When installing the forklift fork linkage, this utility model first adjusts the distance between the first square tube limiting block 4, the second square tube limiting block 5, the tail end positioning support 6 and the bushing positioning support (2) according to the size of the forklift fork linkage.

[0025] Then, bolts are passed through the fixing holes 14 and U-shaped grooves 11 of the first square tube limiting block 4, the second square tube limiting block 5, and the tail end positioning support 6, and threadedly connected to the threads, so that the fixing holes 14 of the first square tube limiting block 4, the second square tube limiting block 5, and the tail end positioning support 6 are completely fixed on the base plate 1.

[0026] Finally, place the bushing of the forklift fork link between the mounting seats 15 on both sides of the bushing positioning support 2, insert the bushing pin 3 to position the center axis of the bushing, then place the square tube of the forklift fork link on the limiting block and use the quick clamp 17 to tighten the square tube of the forklift fork link onto the surface of the fixed seat 16. At this time, push the nut limiting step pin 7 against the end face of the square tube of the forklift fork link and rotate the clamping bolt 8 to make the rotating clamping bolt 8 contact the nut limiting step pin 7.

Claims

1. A universal tooling for welding forklift fork linkages, comprising a base plate (1), characterized in that, The top of the base plate (1) is connected from left to right to a bushing positioning support (2), a first square tube limiting block (4), a second square tube limiting block (5), and a tail end positioning support (6). The bushing positioning support (2) is movably connected to a bushing pin (3). The tail end positioning support (6) is movably connected to a nut limiting step pin (7). The bushing positioning support (2) is fixedly connected to the base plate (1). The first square tube limiting block (4), the second square tube limiting block (5), and the tail end positioning support (6) are connected from left to right. The connection between the end positioning support (6) and the base plate (1) is a sliding connection. The base plate (1) is provided with a U-shaped groove (11) that penetrates the base plate (1). The first square tube limiting block (4), the second square tube limiting block (5), and the tail end positioning support (6) are all provided with fixing holes (14). The fixing holes (14) of the first square tube limiting block (4), the second square tube limiting block (5), and the tail end positioning support (6) are all located directly above the U-shaped groove (11).

2. The universal tooling for welding forklift fork linkages according to claim 1, characterized in that, The bottom plate (1) has positioning grooves (9) on both sides of the top. The first square tube limiting block (4), the second square tube limiting block (5), and the tail end positioning support (6) are fixedly connected to sliding blocks (10). The sliding connection between the first square tube limiting block (4), the second square tube limiting block (5), the tail end positioning support (6) and the bottom plate (1) is completed by the sliding cooperation between the positioning grooves (9) and the sliding blocks (10).

3. A universal tooling for welding forklift fork linkages according to claim 1, characterized in that, The bushing positioning support (2) is provided with mounting seats (15) on both the left and right sides. The mounting seats (15) on both sides of the bushing positioning support (2) are provided with slots. The bushing pin (3) and the bushing positioning support (2) are connected by inserting the bushing pin (3) into the slots of the mounting seats (15) on both sides of the bushing positioning support (2).

4. A universal tooling for welding forklift fork linkages according to claim 1, characterized in that, The tail end positioning support (6) is provided with a limiting groove (12) at its rear end. The limiting groove (12) passes through the tail end positioning support (6). A nut limiting step pin (7) is movably connected in the limiting groove (12). The upper end of the tail end positioning support (6) is provided with a threaded hole (13). The threaded hole communicates with the limiting groove (12). A clamping bolt (8) is threadedly connected to the threaded hole (13).

5. A universal tooling for welding forklift fork linkages according to claim 1, characterized in that, The first square tube limiting block (4) and the second square tube limiting block (5) are each provided with a fixed seat (16), and the first square tube limiting block (4) and the second square tube limiting block (5) are each provided with a quick clamp (17), and the quick clamp (17) and the fixed seat (16) are located on the same plane.

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