Forklift front axle assembling and welding jig

Abstract

The utility model relates to a forklift front axle assembling and welding jig which is used for fixing a forklift front axle, the forklift front axle comprises a hole piece and a bending piece, the hole piece is provided with a round hole, and the welding jig comprises a base, a base plate, a clamping piece and a clamping piece. The positioning piece is arranged on the base, the positioning piece supports the forklift front axle to be overhead above the base, the positioning piece further abuts against one side, in the first direction, of the forklift front axle, and the positioning piece further abuts against one side, in the second direction, of the forklift front axle; the positioning pin rod penetrates through the round hole of the perforated piece in the horizontal direction, the round hole is in transition fit with the positioning pin rod, and the positioning piece supports the positioning pin rod; by arranging the positioning piece and the positioning pin rod, the front axle of the forklift can be quickly assembled, the assembling and welding efficiency is improved, and the assembling difficulty and the assembling error rate can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a welding fixture for assembling a forklift front axle. Background Technology

[0002] The forklift front axle is a crucial component of a forklift. It connects the two front wheels, supports the weight of the forklift's front end, and is a key part for steering. It also carries and transmits power, transferring the engine's power to the drive wheels. The forklift front axle is typically a bridge structure welded from multiple metal parts. In the traditional forklift front axle welding process, one metal part is assembled and then another is welded simultaneously. This process is prone to assembly errors. To ensure accurate welding positions, the metal parts must be measured and marked with position lines before welding. The other metal part is then aligned with these lines and clamped using a clamping fixture before welding. Manual measurement and marking are not only time-consuming and labor-intensive but also susceptible to human error, leading to cumulative errors and ultimately resulting in a defective forklift front axle that cannot be used. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the problems of low assembly and welding efficiency and easy assembly errors in the existing technology of forklift front axle assembly, and to provide a forklift front axle assembly and welding fixture that can quickly assemble forklift front axles, which not only improves the assembly and welding efficiency, but also reduces the assembly difficulty and assembly error rate.

[0004] To solve the above-mentioned technical problems, this utility model provides a welding fixture for assembling a forklift front axle, which is used to fix the forklift front axle. The forklift front axle includes a perforated part and a bent part. The perforated part has a circular hole. The welding fixture includes...

[0005] Base;

[0006] A positioning element is disposed on the base, the positioning element supports the forklift front axle to be suspended above the base, and the positioning element also abuts against one side of the forklift front axle along a first direction, and the positioning element also abuts against one side of the forklift front axle along a second direction.

[0007] A positioning pin passes through the circular hole of the perforated member in a horizontal direction, and the circular hole is in transition fit with the positioning pin, and the positioning member supports the positioning pin.

[0008] In one embodiment of the present invention, the positioning member located on one side of the forklift front axle along the first direction is provided with a step, the tread of the step supports the forklift front axle, and the kick surface of the step abuts against the forklift front axle along the first direction.

[0009] In one embodiment of the present invention, the positioning member supporting the positioning pin is provided with a circular positioning groove, and the positioning member is located in the circular positioning groove.

[0010] In one embodiment of this utility model, the positioning element is a thin plate, and multiple thin plates are fixed on the base in parallel and at intervals.

[0011] In one embodiment of this utility model, the positioning member is supported at both ends of the positioning pin.

[0012] In one embodiment of the present invention, the positioning pin includes a first positioning pin, a second positioning pin, and a third positioning pin. The first positioning pin and the second positioning pin extend along the first direction, and the third positioning pin extends along the second direction. The first positioning pin is positioned higher than the second positioning pin, and the second positioning pin is positioned higher than the third positioning pin.

[0013] In one embodiment of the present invention, a positioning cylinder extending along the first direction is further included, the two ends of which abut against the perforated member.

[0014] In one embodiment of this utility model, the positioning cylinder is sleeved on the positioning pin.

[0015] In one embodiment of the present invention, an adjustment assembly is included, which is disposed at the bottom of the forklift front axle. The adjustment assembly includes a fixed base and an adjustment rod. The fixed base is movably or fixedly disposed on the base. The top end of the adjustment rod supports the forklift front axle, and the bottom end of the adjustment rod is threadedly connected to the fixed base.

[0016] In one embodiment of the present invention, a plurality of the adjustment components are arranged in an array at the bottom of the forklift front axle.

[0017] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0018] The forklift front axle assembly and welding fixture of this utility model uses positioning pins to sequentially string together multiple perforated parts according to the drawings, reducing the assembly error rate of perforated parts and improving assembly efficiency; the transition fit between the positioning pins and the round holes of the perforated parts enables precise alignment of the perforated parts, improving the welding accuracy rate; by setting positioning parts on one side of the forklift front axle along the first direction and one side along the second direction, the forklift front axle can be fixed by simply pushing it along the first and second directions to make it close to the positioning parts, avoiding the need for measuring and drawing positioning lines, thus saving manpower. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a structural schematic diagram of the forklift front axle;

[0021] Figure 2 for Figure 1 A schematic diagram of another forklift front axle shown;

[0022] Figure 3 for Figure 1 A schematic diagram of another forklift front axle shown;

[0023] Figure 4 This is a schematic diagram of the forklift front axle assembly and welding fixture and the forklift front axle in a preferred embodiment of this utility model;

[0024] Figure 5 for Figure 4 The diagram shows the structural schematic of the welding fixture for assembling the forklift front axle.

[0025] Figure 6 for Figure 5 The diagram shows the structure of a positioning component;

[0026] Figure 7 for Figure 5 The diagram shows a structural schematic of a positioning component.

[0027] Explanation of reference numerals in the instruction manual's attached drawings: 1. Forklift front axle; 11a. Bending component; 12a. Bending component; 13a. Bending component; 14a. Bending component; 15a. Bending component; 16a. Bending component; 11b. Perforated component; 12b. Perforated component; 13b. Perforated component; 14b. Perforated component; 15b. Perforated component; 16b. Perforated component; 17b. Perforated component; 18b. Perforated component; 2. Forklift front axle assembly and welding fixture 3. Base; 4. Positioning component; 41. Positioning component; 411. Kick; 412. Tread; 42. Positioning component; 43. Positioning cylinder; 44. Positioning component; 45. Connecting component; 46. Positioning component; 47. Positioning component; 48. Circular positioning groove; 5. First positioning pin; 51. Second positioning pin; 52. Third positioning pin; 6. Fixed seat; 61. Adjusting rod; X, First direction; Y, Second direction. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Example

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment of this utility model, a forklift front axle assembly welding fixture is disclosed, which is used to precisely fix the forklift front axle 1. The forklift front axle 1 includes multiple perforated parts and multiple bent parts, wherein the bent parts include bent parts 11a, 12a, 13a, 14a, 15a, and 16a; the perforated parts are provided with round holes, and the perforated parts include perforated parts 11b, 12b, 13b, 14b, 15b, 16b, 17b, and 18b; the welding fixture 2 includes...

[0031] The base 3 has a metal plate that provides support.

[0032] Positioning components, multiple of which are fixedly mounted on the base 3, with the top of each positioning component supporting the bottom of the forklift front axle 1 so that it is suspended above the base 3, leaving welding space to facilitate welding of the forklift front axle 1. Positioning component 41 also abuts against one side of the forklift front axle 1 along the first direction X, and positioning components 44 and 46 abut against one side of the forklift front axle 1 along the second direction Y. The first direction X and the second direction Y are two perpendicular horizontal directions. When the forklift front axle 1 is placed on the positioning components, it can be pushed along the first direction X to bring it close to positioning component 41, and also along the second direction Y to bring it close to positioning components 44 and 46, thus positioning the forklift front axle 1 from two horizontal directions. This avoids manual measurement and drawing of positioning lines, saves manpower, and improves welding accuracy.

[0033] The locating pins, which pass horizontally through the round holes of the perforated parts, connect multiple perforated parts in sequence according to the drawings. This not only reduces assembly errors but also improves assembly efficiency. Furthermore, the round holes and the locating pins have a transition fit, meaning the diameter of the locating pin is slightly smaller than the diameter of the round hole. This facilitates the assembly of the locating pins and the perforated parts and ensures their coaxiality, thus improving the alignment accuracy of the perforated parts. The locating elements 4 / 42 / 47 support the locating pins, which are preferably metal pins.

[0034] Reference Figure 6 As shown, the positioning member 46 located on the side of the forklift front axle 1 along the first direction X is provided with a step. The step is provided with a vertical kick surface 411 and a horizontal tread surface 412. The tread surface 412 supports the bottom of the forklift front axle 1, and the kick surface 411 abuts against the side of the forklift front axle 1 along the first direction X. The step is provided to facilitate pushing the forklift front axle 1 to be close to the positioning member 41 to achieve positioning.

[0035] Reference Figure 7 As shown, in order to improve the stability of the positioning pin, the top of the positioning member 4 / 42 / 47 supporting the positioning pin is provided with a circular positioning groove 48. The positioning member 4 / 42 / 47 is located in the circular positioning groove 48. The circular positioning groove 48 restricts the positioning pin and prevents it from rolling off the positioning member 4 / 42 / 47.

[0036] Reference Figure 5 As shown, the positioning element is a thin metal plate, which can reduce the overall weight of the fixture. Multiple thin metal plates are fixed to the base 3 in parallel and at intervals. The gaps between the positioning elements are used to avoid the perforated parts, resulting in a compact fixture structure.

[0037] Reference Figure 5 As shown, the positioning components 4 / 42 / 47 are supported at both ends of the positioning pin, which can stably support the positioning pin and also leave welding space on both sides of the forklift front axle 1 for easy welding.

[0038] Reference Figure 5 As shown, the installation positions, heights, and angles of the multiple perforated parts are different. Therefore, the positioning pin includes a first positioning pin 5, a second positioning pin 51, and a third positioning pin 52. The first positioning pin 5 extends along the first direction X to connect perforated parts 13b and 17b. The second positioning pin 51 extends along the first direction X to connect perforated parts 11b, 13b, 14b, and 18b. The third positioning pin 52 extends along the second direction Y to connect perforated parts 12b, 15b, and 16b. The first positioning pin 5 is positioned higher than the second positioning pin 51, and the second positioning pin 51 is positioned higher than the third positioning pin 52.

[0039] Reference Figure 4 and 5 As shown, in order to ensure the correct spacing between the perforated parts 18b and 14b, and between the perforated parts 13b and 11b, a positioning cylinder 43 extending along the first direction X is also included, with the two ends of the positioning cylinder 43 abutting against the perforated parts 18b and 14b respectively.

[0040] Reference Figure 5 As shown, further, in order to improve the stability of the positioning cylinder 43, the positioning cylinder 43 is sleeved on the second positioning pin 51.

[0041] Reference Figure 5As shown, in order to adjust the height of a portion of the forklift front axle 1 so that the forklift front axle 1 is level, an adjustment assembly is also included at the bottom of the forklift front axle 1. The adjustment assembly includes a fixed base 6 and an adjustment rod 61. The fixed base 6 is movably or fixedly mounted on the base 3. The fixed base 6 is provided with a screw hole. The surface of the adjustment rod 61 is provided with a thread. The top end of the adjustment rod 61 supports the forklift front axle 1. The bottom end of the adjustment rod 61 is threaded to the fixed base 6. The forklift front axle 1 can be adjusted by turning the adjustment rod 61 to raise or lower it.

[0042] Reference Figure 5 As shown, in order to adjust the overall height of the forklift front axle 1, four adjustment components are also included in an array arranged at the bottom of the forklift front axle 1.

[0043] Furthermore, the two positioning pieces 44 that abut against the front axle of the forklift along the second direction Y are connected by the connector 45. Similarly, the two positioning pieces 46 that abut against the front axle of the forklift along the second direction Y are connected by the connector 45.

[0044] The working principle of the forklift front axle 1 assembly and welding fixture described in this utility model is as follows:

[0045] Following the order in the drawings, fit the perforated parts 13b and 17b onto the first positioning pin 5, then fit the perforated parts 11b, 13b, positioning cylinder 43, 14b, and 18b onto the second positioning pin 51, and finally fit the perforated parts 12b, 15b, and 16b onto the third positioning pin 52. Next, place the third positioning pin 52, the second positioning pin 51, and the first positioning pin 5 onto their respective positioning parts. Then, place the bent part 11a... Folded parts 12a, 13a, 14a, 15a, and 16a are placed on their respective positioning parts. Then, the forklift front axle 1 is pushed in the first direction X to press against the kick surface 411. The forklift front axle 1 is then pushed in the second direction Y to abut against positioning parts 46 and 44. Finally, adjacent workpieces are clamped together using U-shaped clamps to complete the assembly of the forklift front axle 1. After welding, the three positioning pins and positioning cylinder 43 are removed, and then the forklift front axle 1 is lifted out as a whole.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A welding fixture for assembling a forklift front axle, used to fix a forklift front axle, the forklift front axle comprising a perforated part and a bent part, the perforated part having a circular hole, characterized in that, The welding fixture includes, Base; A positioning element is disposed on the base, the positioning element supports the forklift front axle to be suspended above the base, and the positioning element also abuts against one side of the forklift front axle along a first direction, and the positioning element also abuts against one side of the forklift front axle along a second direction. A positioning pin passes through the circular hole of the perforated member in a horizontal direction, and the circular hole is in transition fit with the positioning pin, and the positioning member supports the positioning pin.

2. The forklift front axle assembly and welding fixture according to claim 1, characterized in that, The positioning member located on one side of the forklift front axle along the first direction is provided with a step, the tread of the step supports the forklift front axle, and the kick surface of the step abuts against the forklift front axle along the first direction.

3. The forklift front axle assembly and welding fixture according to claim 1, characterized in that, The positioning element supporting the positioning pin is provided with a circular positioning groove, and the positioning element is located in the circular positioning groove.

4. The forklift front axle assembly and welding fixture according to claim 1, characterized in that, The positioning element is a thin plate, and multiple thin plates are fixed to the base in parallel and at intervals.

5. A forklift front axle assembly and welding fixture according to claim 1, characterized in that, The positioning element is supported at both ends of the positioning pin.

6. The forklift front axle assembly welding fixture according to claim 1, characterized in that, The positioning pin includes a first positioning pin, a second positioning pin, and a third positioning pin. The first positioning pin and the second positioning pin extend along the first direction, and the third positioning pin extends along the second direction. The first positioning pin is positioned higher than the second positioning pin, and the second positioning pin is positioned higher than the third positioning pin.

7. A forklift front axle assembly and welding fixture according to claim 6, characterized in that, It also includes a positioning cylinder extending along the first direction, the two ends of which abut against the perforated member.

8. A forklift front axle assembly and welding fixture according to claim 7, characterized in that, The positioning cylinder is sleeved on the positioning pin.

9. A forklift front axle assembly and welding fixture according to claim 1, characterized in that, The system includes an adjustment assembly disposed at the bottom of the forklift front axle. The adjustment assembly includes a fixed base and an adjustment rod. The fixed base is movably or fixedly disposed on the base. The top end of the adjustment rod supports the forklift front axle, and the bottom end of the adjustment rod is threadedly connected to the fixed base.

10. A forklift front axle assembly and welding fixture according to claim 9, characterized in that, It also includes a plurality of the adjustment components arranged in an array at the bottom of the forklift front axle.

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