Forklift gantry channel steel positioning and welding tooling

Abstract

A forklift gantry channel steel positioning and welding tool includes a base, two positioning assemblies symmetrically arranged on the base, a frame body, a sliding assembly and a clamping block, the sliding assembly is arranged on the frame body, the clamping block can slide along the length direction of the frame body through the sliding assembly, a notch compatible with the gantry channel steel is arranged at one end of the clamping block close to the gantry channel steel, and the size of the notch is consistent with the web thickness of the gantry channel steel, and a sliding rail is arranged between the two positioning assemblies and along the length direction of the base. Through the structure of adjusting the opening size in the transverse direction, adjusting the clamping height in the longitudinal direction and adjusting the fitting length in the front and back directions, various models of gantry channel steels can be fitted, a plurality of special tools are not needed, the equipment cost and the storage space occupation are reduced. When the model is changed, the tool does not need to be disassembled, only the positions of the sliding block and the clamping block need to be adjusted, the single model changing time is greatly shortened, the base roller structure reduces the friction of the channel steel movement, facilitates the workpiece adjustment and improves the welding operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of forklift welding technology, specifically to a forklift mast channel steel positioning and welding fixture. Background Technology

[0002] As a core special equipment in the material handling field, the mast of a forklift is a key load-bearing component that enables the lifting, tilting, and shoveling functions of the forks. The symmetrically arranged channel steel on both sides of the mast is the "load-bearing skeleton" of the mast, directly determining the structural strength and operational stability of the mast. The manufacturing precision of the mast welding plays a decisive role in the final performance of the forklift, specifically reflected in three core dimensions: First, the synchronization of mast lifting; if the positioning of the channel steel on both sides is off, it will lead to uneven lifting speed, affecting operational efficiency. Second, the synchronization of mast tilting forward and backward; positioning errors may cause tilting jamming, increasing operational risks. Third, the verticality of mast assembly; excessive deviation will lead to uneven loading of the forks, shortening the service life of the mast.

[0003] Currently, the lap welding of channel steel for forklift masts mostly adopts a "one-to-one" dedicated tooling, that is, one set of tooling corresponds to one model of mast. This model has significant limitations: on the one hand, there are various mast models in forklift production, with key opening dimensions covering 751mm-934mm, requiring multiple sets of tooling to be stocked, which not only occupies a lot of production space, but also significantly increases equipment procurement and maintenance costs; on the other hand, when changing mast models, it is necessary to disassemble and debug the new tooling and recalibrate the positioning reference, and a single model change usually takes more than 30 minutes, which seriously restricts the production line cycle time; in addition, the positioning reference of dedicated tooling is fixed. If the key dimensions of the mast are slightly adjusted due to design iterations, the original tooling needs to be reprocessed and modified, which has extremely poor flexibility and is difficult to adapt to the production needs of multiple varieties and small batches. At the same time, frequent model changes can easily lead to fluctuations in positioning accuracy, increase the rework rate of mast lap welding, and further push up production costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of one set of tooling for one model of mast, thus making it less suitable for lower-end applications, and proposes a forklift mast channel steel positioning and welding tooling.

[0005] The objective of this utility model can be achieved through the following technical solution: a forklift mast channel steel positioning and welding fixture, comprising: Base; The positioning components are symmetrically arranged on the base. Each positioning component includes a frame, a sliding component, and a clamping block. The sliding component is arranged on the frame. The clamping block can slide along the length of the frame through the sliding component. The end of the clamping block near the gantry channel steel has a slot adapted to the gantry channel steel. The size of the slot is consistent with the web thickness of the gantry channel steel. A slide rail is provided between two positioning components and laid along the length of the base. One or both of the positioning components may be mounted on the slide rail.

[0006] As a further embodiment of this utility model: the sliding assembly includes a sliding rod and a first slider, the sliding rod is fixed on the frame by a bracket, the first slider slides on the sliding rod, and the clamping block is disposed on the first slider.

[0007] As a further embodiment of this utility model: a vertical groove is provided at the connection between the first slider and the clamping block, and a snap-fit ​​part adapted to the groove is also provided on the side of the clamping block near the groove, and the snap-fit ​​part engages with the groove.

[0008] As a further embodiment of this utility model: both the first slider and the clamping block are respectively provided with locking elements for locking the position.

[0009] As a further embodiment of this utility model: a second slider slides on the slide rail, and the frame is mounted on the second slider.

[0010] As a further embodiment of this utility model, the second slider is provided with a locking element for locking the position.

[0011] As a further embodiment of this utility model: multiple sets of rollers are also provided on the base between the two positioning components, and the rolling part of the rollers faces upward and can fit with the gantry channel steel to form a base support structure.

[0012] The beneficial effects of this utility model are: With its structure that allows for horizontal adjustment of the opening size, vertical adjustment of the clamping height, and front-to-back adjustment of the fitting length, it can accommodate various models of gantry channel steel, eliminating the need for multiple sets of dedicated tooling and reducing equipment costs and storage space requirements. Changing models requires no disassembly of tooling; only the positions of the slider and clamping blocks need to be adjusted, significantly shortening the time required for a single model changeover. The base roller structure reduces friction during channel steel movement, facilitating workpiece adjustment and improving welding efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 and 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the oil circuit structure in the oil supply assembly of this utility model; Figure 4 This is a schematic diagram showing the position of the forklift mast on this application; Figure 5 yes Figure 4Enlarged view of point A in the middle.

[0015] In the diagram: 1. Base; 2. Positioning component; 21. Frame; 22. Bracket; 23. Slide bar; 24. First slider; 25. Clamping block; 26. Groove; 4. Slide rail; 5. Second slider; 6. Roller; 7. Forklift mast. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1, please refer to Figure 1-3 As shown, a forklift mast channel steel positioning and welding fixture includes: a base 1; Positioning component 2, two positioning components 2 are symmetrically arranged on the base 1. The positioning component 2 includes a frame 21, a sliding component and a clamping block 25. The sliding component is arranged on the frame 21. The clamping block 25 can slide along the length direction of the frame 21 through the sliding component. The end of the clamping block 25 near the gantry channel steel is provided with a slot 26 that is adapted to the gantry channel steel. The size of the slot 26 is consistent with the thickness of the web plate of the gantry channel steel. The slide rail 4 is arranged between two positioning components 2 and laid along the length of the base 1. One or two of the positioning components 2 can be mounted on the slide rail 4 and slide along the slide rail 4 to adapt to the length of different models of gantry channel steel.

[0018] The sliding assembly includes a slide rod 23 and a first slider 24. The slide rod 23 is fixed on the frame 21 by a bracket 22. The first slider 24 slides on the slide rod 23. The clamping block 25 is disposed on the first slider 24. The distance between the clamping blocks 25 on the two positioning assemblies 2 can be adjusted by sliding the first slider 24 along the slide rod 23 to adapt to the opening size of the gantry.

[0019] A vertical groove is provided at the connection between the first slider 24 and the clamping block 25. The clamping block 25 is also provided with a snap-fit ​​part that is adapted to the groove on the side near the groove. The snap-fit ​​part is snap-fitted into the groove, and the clamping block 25 can slide up and down along the groove to adjust the fitting height with the gantry channel steel, so as to ensure that the groove 26 is clamped tightly to the web of the gantry channel steel.

[0020] Furthermore, locking components are provided on the first slider 24 and the clamping block 25 respectively. The locking components are fastening bolts. After tightening, the position of the first slider 24 on the slide rod 23 and the position of the clamping block 25 on the slide groove of the first slider 24 can be locked respectively to prevent displacement after positioning.

[0021] Furthermore, a second slider 5 is provided on the slide rail 4. The frame 21 in the positioning assembly 2 is fixedly connected to the second slider 5. The displacement of the frame 21 is adjusted by sliding the second slider 5 along the slide rail 4. The second slider 5 is also provided with a locking device for locking the position. The locking device is a fastening bolt, which can lock the position of the second slider 5 on the slide rail 4 after tightening.

[0022] It is important to note that the locking components can be not only fastening bolts, but also clips and other fastening devices.

[0023] Furthermore, the base 1 is made of rigid metal sheet, and the top of the base 1 is a horizontal mounting surface. The top plane of the base 1 is used as the height reference to ensure the height positioning accuracy when the gantry channel steel is welded.

[0024] The base 1 is also provided with multiple sets of rollers 6 located between the two positioning components 2. The rolling part of the rollers 6 faces upward and can fit against the gantry channel steel to form a bottom drag structure, which reduces friction when the gantry channel steel moves and facilitates the adjustment of the channel steel position.

[0025] Furthermore, the multiple sets of rollers 6 are evenly distributed along the length of the base 1, and the rolling direction of the rollers 6 is consistent with the length direction of the gantry channel steel, ensuring that the gantry channel steel moves smoothly and stably along the length direction.

[0026] The slide rail 4 has scale markings on its side with a scale accuracy of not less than 1mm, which can help operators to accurately adjust the front and rear positions of the positioning component 2 to ensure that it matches the length of the gantry channel steel.

[0027] The inner wall of the slot 26 of the clamping block 25 is a smooth surface to avoid scratching the surface of the web plate of the gantry steel when clamping the gantry steel, thus ensuring the structural integrity of the gantry steel.

Claims

1. A forklift mast channel steel positioning and welding fixture, characterized in that, include: Base (1); Positioning component (2), two positioning components (2) are symmetrically arranged on the base (1). The positioning component (2) includes a frame (21), a sliding component and a clamping block (25). The sliding component is arranged on the frame (21). The clamping block (25) can slide along the length direction of the frame (21) through the sliding component. The clamping block (25) has a slot (26) that is adapted to the gantry channel steel at one end near the gantry channel steel. The size of the slot (26) is consistent with the web thickness of the gantry channel steel. The slide rail (4) is arranged between two positioning components (2) and laid along the length of the base (1). One or two of the frame (21) in the positioning components (2) can be arranged on the slide rail (4).

2. The forklift mast channel steel positioning and welding fixture according to claim 1, characterized in that, The sliding assembly includes a slide rod (23) and a first slider (24). The slide rod (23) is fixed on the frame (21) by a bracket (22). The first slider (24) slides on the slide rod (23). The clamp (25) is disposed on the first slider (24).

3. The forklift mast channel steel positioning and welding fixture according to claim 2, characterized in that, The first slider (24) and the clamping block (25) are connected by a vertical groove. The clamping block (25) is also provided with a snap-fit ​​part that is adapted to the groove on the side near the groove. The snap-fit ​​part is engaged with the groove.

4. A forklift mast channel steel positioning and welding fixture according to claim 2 or 3, characterized in that, Both the first slider (24) and the clamp (25) are provided with locking elements for locking the position.

5. The forklift mast channel steel positioning and welding fixture according to claim 1, characterized in that, A second slider (5) slides on the slide rail (4), and the frame (21) is mounted on the second slider (5).

6. The forklift mast channel steel positioning and welding fixture according to claim 5, characterized in that, The second slider (5) is provided with a locking element for locking the position.

7. The forklift mast channel steel positioning and welding fixture according to claim 1, characterized in that, The base (1) is also provided with multiple sets of rollers (6) located between the two positioning components (2). The rolling part of the rollers (6) faces upward and can fit with the gantry channel steel to form a base support structure.

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