Welding production die for forklift frame

By designing a multi-functional forklift frame welding production mold and using a variety of positioning devices to achieve multi-functional positioning and production of different frames, the problems of low flexibility and poor versatility of the existing molds are solved, and a low-cost, high-performance Efficient production.

CN222386226UActive Publication Date: 2025-01-24ANHUI HAOYUN MACHINERY
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Patent Information

Application Number
CN202421013270.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2025-01-24
Estimated Expiration
2034-05-10

AI Technical Summary

Technical Problem

The existing forklift frame welding molds have low flexibility and poor versatility, resulting in too high production costs and the inability to effectively produce forklift frames of different models and sizes.

Method used

A welding production mold for the forklift frame is designed. A variety of positioning devices are installed on the mold base, including the front axle support positioning device, the tilt cylinder support positioning device, the clamping device, the engine and gearbox foot positioning device, The box rear positioning device and the tailstock positioning device realize multi-functional positioning and production of different frames.

Benefits of technology

The high flexibility and versatility of the mold can be achieved, and the welding molds that can produce three frames can be produced. In particular, it can produce both internal combustion fork frames and lithium battery fork frames, occupying small venues, low production costs, and meeting flexible production needs Essence

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a welding production die for a forklift frame, which comprises a die base, a front axle support positioning device and an inclined cylinder support positioning device, the front axle support positioning device is arranged on the die base and used for positioning a front axle support on the frame, and the inclined cylinder support positioning device is arranged on the die base and used for positioning an inclined cylinder support on the frame. The inclined cylinder support positioning device is arranged beside the front axle support positioning device on the mold base and is used for positioning an inclined cylinder support on a frame; according to the welding production mold for the forklift frame, tailor-welding production of a 2-ton internal combustion frame, a 3-ton internal combustion frame and a lithium battery frame is achieved through one mold, particularly production of a lithium electric vehicle, the occupied area is small, the production cost is low, flexible production is met, and the problems that in the prior art, due to the fact that the sizes, models and outer contours of frames are different, the flexibility degree of the mold is low, and the production efficiency is high are solved. The problems of poor universality, need of too many dies and large occupied space, and high production cost are solved in the prior art.
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Description

Technical Field

[0001] The utility model relates to the technical field of forklift manufacturing, in particular to a welding production die for a forklift frame. Background Art

[0002] At present, forklifts are indispensable handling vehicles and are being used more and more widely. With the development of new energy technologies such as lithium batteries, internal combustion forklifts are being replaced by more and more lithium-ion forklifts.

[0003] As a key component of internal combustion forklifts and lithium battery forklifts, the frame is welded from many parts. The welded parts of the frame include: front axle support, left box, right box, tail frame, front lower crossbeam, rear lower crossbeam, engine support feet or gearbox support feet. For internal combustion forklift frames, the engine support feet need to be welded without installing the engine, while for lithium battery forklift frames, the gearbox support feet need to be welded for installing the gearbox. The frame welding molds in the prior art can generally only produce one type of frame. Since the size, model and external profile of the frame are different, the flexibility of the mold is low and the versatility is poor. Too many molds are required and a large area is occupied, resulting in excessively high production costs. Utility Model Content

[0004] The utility model aims to provide a welding production mold for a forklift frame, so as to solve the problems of low flexibility, poor versatility and excessively high production cost in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a welding production mold for a forklift frame, comprising:

[0006] Mould base;

[0007] A front axle support positioning device, which is arranged on the mold base and is used to position the front axle support on the frame, and

[0008] A tilt cylinder support positioning device is arranged on the mold base beside the front axle support positioning device, and the tilt cylinder support positioning device is used to position the tilt cylinder support on the frame.

[0009] Preferably, the front axle support positioning device includes a first fixed frame, the first fixed frame is arranged on the top of the mold base, a sliding frame is arranged on the first fixed frame, a first cylinder is arranged on the side of the sliding frame, and two sides of the sliding frame adjacent to the surface where the first cylinder is located are provided with ton support positioning plates and ton support positioning plates, and two control valves are arranged on the top of the sliding frame.

[0010] Preferably, the tilt cylinder support positioning device includes a base, which is fixedly connected to the top of the mold base, a side of the base is provided with a box side positioning, a second cylinder is provided on the top of the base, a slide is provided on the top of the second cylinder, and a tilt cylinder support positioning axis is horizontally provided on the top of the slide.

[0011] Preferably, four clamping devices are arranged on the mold base, and two clamping devices are arranged on both sides of the top of the mold base respectively.

[0012] Preferably, an engine and gearbox support foot positioning device is provided on the top of the mold base, and the engine and gearbox support foot positioning device includes a lower base arranged on the top of the mold base, an upper base is arranged on the top of the lower base, an engine support foot positioning frame is provided on one side of the upper base, and a first gearbox support foot positioning and a second gearbox support foot positioning are provided on two opposite sides of the upper base.

[0013] Preferably, two rear box positioning devices are arranged on the top of the mold base, and the rear box positioning devices include a second fixing frame, the second fixing frame is arranged on the top of the mold base, and a first positioning plate is arranged on the top of the second fixing frame.

[0014] Preferably, a tailstock positioning device is provided between the two box rear positioning devices on the mold base, and the tailstock positioning device comprises a fixed stand, the fixed stand is provided on the top of the mold base, and a second positioning plate is provided on the top of the fixed stand.

[0015] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0016] The welding production mold of the forklift frame realizes multi-function and high flexibility by arranging a front axle support positioning device for positioning the front axle support on the frame on the mold base, a tilt cylinder support positioning device for positioning the tilt cylinder support on the frame, a clamping device for positioning the frame box, an engine and gearbox support foot positioning device, a box rear positioning device for positioning the left box and the tail plate with the rear end of the box, and a tail frame positioning device. The mold can produce three kinds of frames, especially both internal combustion forklift frames and lithium battery forklift frames. One pair of molds can realize the welding production of 2-ton internal combustion frames and 3-ton internal combustion and lithium battery frames, especially the production of lithium battery vehicles, with small occupied space and low production cost, meeting the flexible production requirements, and solving the problem of high production cost caused by different sizes, models and external contours of the frames, low flexibility of the molds, poor versatility, too many molds and large occupied space in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the front axle support positioning device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the tilt cylinder support positioning device of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the engine and gearbox support foot positioning device of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the rear positioning device of the box body of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the tailstock positioning device of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of a 2-ton internal combustion forklift;

[0024] Figure 8 This is a schematic diagram of the structure of a 3-ton internal combustion forklift;

[0025] Fig. 9 This is a schematic diagram of the structure of a 3-ton lithium-ion forklift.

[0026] In the figure: 1. mold base; 2. front axle support positioning device; 21. first fixed frame; 22. sliding frame; 23. first cylinder; 24. 2-ton support positioning plate; 25. 3-ton support positioning plate; 26. control valve; 3. tilt cylinder support positioning device; 31. base; 32. box side positioning; 33. second cylinder; 34. slide; 35. tilt cylinder support positioning shaft; 4. clamping device; 5. engine and gearbox support foot positioning device; 51. lower base; 52. Upper base; 53. Engine support foot positioning frame; 54. First gearbox support foot positioning; 55. Second gearbox support foot positioning; 6. Box rear positioning device; 61. Second fixing frame; 62. First positioning plate; 7. Tail frame positioning device; 71. Fixed stand; 72. Second positioning plate; 8. Front axle support; 9. Tilt cylinder support; 10. Right box; 11. Engine support foot; 12. Rear lower cross beam; 13. Tail frame; 14. Front lower cross beam; 15. Tail plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-Figure 6 As shown, a welding production mold for a forklift frame includes a mold base 1, a front axle support positioning device 2 and a tilt cylinder support positioning device 3. The front axle support positioning device 2 is arranged on the mold base 1, and the tilt cylinder support positioning device 3 is arranged on the mold base 1 next to the front axle support positioning device 2. The function of the front axle support positioning device 2 is to position the front axle support 8 on the frame, and the function of the tilt cylinder support positioning device 3 is to position the tilt cylinder support 9 on the frame, thereby realizing a multifunctional and highly flexible welding mold capable of producing three types of frames, especially capable of producing both internal combustion forklift frames and lithium battery forklift frames.

[0029] like Figure 1-Figure 6As shown, the front axle support positioning device 2 includes a first fixed frame 21, a sliding frame 22, a first cylinder 23, a 2-ton support positioning plate 24, a 3-ton support positioning plate 25 and a control valve 26. The 2-ton support positioning plate 24 and the 3-ton support positioning plate 25 are respectively used for positioning the two supports. To facilitate demoulding, the sliding frame 22 can drive the two support positioning plates to move under the drive of the first cylinder 23. The mold base 1 is also provided with two box front support frames for supporting and positioning the fenders on the left and right boxes 10 of the frame. The first fixed frame 21 is arranged on the top of the mold base 1, and the sliding frame 22 is arranged on the first fixed frame 21. The first cylinder 23 is arranged on the side of the sliding frame 22, and the two side surfaces adjacent to the surface where the sliding frame 22 and the first cylinder 23 are located are both provided with A 2-ton support positioning plate 24 and a 3-ton support positioning plate 25 are provided, two control valves 26 are provided on the top of the sliding frame 22, the tilt cylinder support positioning device 3 includes a base 31, a box side positioning 32, a second cylinder 33, a slide 34 and a tilt cylinder support positioning shaft 35, the base 31 is fixedly connected to the top of the mold base 1, a box side positioning 32 is provided on one side of the base 31, a second cylinder 33 is provided on the top of the base 31, a slide 34 is provided on the top of the second cylinder 33, and a tilt cylinder support positioning shaft 35 is horizontally provided on the top of the slide 34, the tilt cylinder support positioning shaft 35 is used to position the tilt cylinder support 9 on the frame, and for the convenience of demoulding, the slide 34 can move under the drive of the second cylinder 33, and the tilt cylinder support positioning device 3 is located between two clamping devices 4, the engine and gearbox foot positioning device 5 is located between the other two clamping devices 4, four clamping devices 4 are arranged on the mold base 1, two clamping devices 4 are arranged on both sides of the top of the mold base 1, and a cylinder is installed on the clamping device 4 for reliable positioning of the frame box. The engine and gearbox foot positioning device 5 is arranged on the top of the mold base 1. The engine and gearbox foot positioning device 5 includes a lower base 51 arranged on the top of the mold base 1, and also includes an upper base 52, an engine foot positioning frame 53, a first gearbox foot positioning 54 and a second gearbox foot positioning 55. The upper base 52 is arranged on the top of the lower base 51, and the engine foot positioning frame 53 is arranged on one side of the upper base 52. The two opposite sides of the upper base 52 The side surfaces are provided with a first gearbox foot positioning device 54 and a second gearbox foot positioning device 55. The engine and gearbox foot positioning device 5 is a combined structure, which is used for the production of internal combustion forklifts and lithium battery forklifts respectively. An engine foot positioning frame 53 is installed below for the production of internal combustion vehicle frames. The top is provided with a first gearbox foot positioning device 54 and a second gearbox foot positioning device 55 for the production of lithium battery vehicle frames. The gearbox foot positioning frame adopts a rotatable hinge structure, which does not affect the welding production of internal combustion vehicle frames. Two box rear positioning devices 6 are provided on the top of the mold base 1. The box rear positioning device 6 includes a second fixing frame 61 and a first positioning plate 62. The second fixing frame 61 is provided on the top of the mold base 1, and the first positioning plate 62 is provided on the top of the second fixing frame 61.A tailstock positioning device 7 is provided between the two rear positioning devices 6 of the box body on the mold base 1. There are two rear positioning devices 6 of the box body, which are used to position the tail plate 15 at the rear end of the left box body and the right box body 10. There are two types of positioning plates, which can respectively position the 2-ton and 3-ton frame boxes. The tailstock positioning device 7 includes a fixed stand 71 and a second positioning plate 72. The fixed stand 71 is provided on the top of the mold base 1. The second positioning plate 72 is provided on the top of the fixed stand 71. The fixed stand of the tailstock positioning device 7 is installed on the mold base 1. There are two groups of positioning holes on the mold base 1, four in each group, a total of 8, which are used to position the 2-ton tailstock and the 3-ton tailstock respectively. The rear crossbeam positioning can meet the positioning of the rear lower crossbeam 12 of the 2-ton and 3-ton frames. The front crossbeam positioning is used to position the front lower crossbeam 14 of the frame. The front lower crossbeam 14 of the 2-ton and 3-ton frames has the same position.

[0030] like Figure 1-Figure 9 As shown, in the specific implementation process, this device is mainly used for the welding production of 2-ton internal combustion vehicle frames, 3-ton internal combustion vehicle frames and 3-ton lithium battery vehicle frames. The mold is adjusted before producing the 2-ton internal combustion vehicle frame. There are two types of positioning plates. The 2-ton positioning plate is installed and placed at the front end of the fixed stand for positioning the 2-ton tail frame.

[0031] When producing a 2-ton internal combustion engine frame, first place the front lower cross beam 14 on the front cross beam positioning, place the rear lower cross beam 12 on the rear cross beam positioning, then place the front axle support 8 on the 2-ton support positioning plate 24, and then place the tail frame on the tail frame positioning device 7, and use the second positioning plate 72 for positioning.

[0032] Then, the right box body 10 and the left box body are hoisted and placed on the frame welding mold. The fender of the right box body 10 is positioned using the box body front support frame, and the tail plate 15 of the right box body 10 is positioned using the first positioning plate 62. Finally, four sets of clamping devices 4 are used to position and clamp them. Then, the tilt cylinder support 9 is placed and positioned using the tilt cylinder support positioning shaft 35. Finally, the engine support foot 11 is placed on the engine support foot positioning frame 53 for positioning. For ease of operation, before operation, the first gearbox support foot positioning 54 and the second gearbox support foot positioning 55 are flipped up and lifted.

[0033] At this point, all parts of the 2-ton internal combustion vehicle frame have been positioned and fixed, and welding production has begun.

[0034] Before producing the 3-ton internal combustion engine frame and the lithium battery frame, it is necessary to replace the second positioning plate 72, adjust and move the second positioning plate 72, and the parts placement and positioning process is similar to that of the 2-ton frame. However, there are no engine feet on the 3-ton lithium battery frame, only gearbox feet. The first gearbox foot positioning 54 and the second gearbox foot positioning 55 are used to position the gearbox feet on the 3-ton lithium battery frame.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding production mold for a forklift frame, characterized in that: include: Mould base (1); A front axle support positioning device (2), the front axle support positioning device (2) being arranged on the mold base (1), the front axle support positioning device (2) being used for positioning the front axle support on the vehicle frame, and A tilt cylinder support positioning device (3) is provided on a mold base (1) next to a front axle support positioning device (2), and the tilt cylinder support positioning device (3) is used to position the tilt cylinder support on a vehicle frame.

2. The welding production mold for a forklift frame according to claim 1, characterized in that: The front axle support positioning device (2) comprises a first fixed frame (21), the first fixed frame (21) is arranged on the top of the mold base (1), a sliding frame (22) is arranged on the first fixed frame (21), a first cylinder (23) is arranged on the side of the sliding frame (22), two side surfaces of the sliding frame (22) adjacent to the surface where the first cylinder (23) is located are both provided with a 2-ton support positioning plate (24) and a 3-ton support positioning plate (25), and two control valves (26) are arranged on the top of the sliding frame (22).

3. The welding production mold for a forklift frame according to claim 1, characterized in that: The tilt cylinder support positioning device (3) comprises a base (31), the base (31) is fixedly connected to the top of the mold base (1), a side of the base (31) is provided with a box side positioning (32), a second cylinder (33) is provided on the top of the base (31), a slide (34) is provided on the top of the second cylinder (33), and a tilt cylinder support positioning shaft (35) is horizontally provided on the top of the slide (34).

4. The welding production mold for a forklift frame according to claim 1, characterized in that: Four clamping devices (4) are arranged on the mold base (1), and two clamping devices (4) are arranged on both sides of the top of the mold base (1).

5. The welding production mold for a forklift frame according to claim 1, characterized in that: An engine and gearbox support foot positioning device (5) is arranged on the top of the mold base (1), and the engine and gearbox support foot positioning device (5) comprises a lower base (51) arranged on the top of the mold base (1), an upper base (52) is arranged on the top of the lower base (51), an engine support foot positioning frame (53) is arranged on one side of the upper base (52), and a first gearbox support foot positioning frame (54) and a second gearbox support foot positioning frame (55) are arranged on two opposite sides of the upper base (52).

6. The welding production mold for a forklift frame according to claim 1, characterized in that: Two box rear positioning devices (6) are arranged on the top of the mold base (1), and the box rear positioning device (6) comprises a second fixing frame (61), the second fixing frame (61) is arranged on the top of the mold base (1), and a first positioning plate (62) is arranged on the top of the second fixing frame (61).

7. The welding production mold for a forklift frame according to claim 6, characterized in that: A tail frame positioning device (7) is arranged between the two box rear positioning devices (6) on the mold base (1), and the tail frame positioning device (7) comprises a fixed stand (71), and the fixed stand (71) is arranged on the top of the mold base (1), and a second positioning plate (72) is arranged on the top of the fixed stand (71).