A forklift front body assembly positioning and welding tool

Abstract

The utility model discloses a kind of forklift front vehicle body assembly positioning welding tool, including bottom plate and clamping positioning device, the clamping positioning device is installed on bottom plate, the clamping positioning device includes mounting plate, drive assembly, rotating frame, compression link, pressing plate and clamping mechanism, the mounting plate is fixedly connected with bottom plate, the drive assembly is installed on mounting plate, the compression link is fixedly connected with rotating frame, the pressing plate is fixedly connected with compression link, the pressing plate is fixedly connected with flexible compression block, the mounting plate is fixedly connected with the limiting block of compression link clamping, the clamping mechanism is installed on compression link.The utility model achieves beneficial effect: the forklift front vehicle body assembly positioning welding tool clamping positioning device that drive assembly, compression link, pressing plate and clamping mechanism are integrated together, compared with the welding tool of conventional need different mechanism respectively clamping two parts, smaller space is occupied, higher integration, can effectively reduce the hindrance to welding process.

Description

Technical Field

[0001] This utility model relates to the technical field of welding fixtures, specifically to a positioning welding fixture for a forklift front body assembly. Background Technology

[0002] In the forklift manufacturing process, the welding quality of the front body assembly directly affects the overall performance and safety of the forklift. Positioning fixtures play a crucial role in the welding of forklift components, ensuring that each component maintains its accurate position and relative relationship during welding, reducing welding deformation, and improving welding precision and efficiency.

[0003] Chinese utility model patent CN204430631U discloses a positioning fixture for welding the frame of an electric forklift, relating to the field of forklift manufacturing technology. It is mounted on a base plate and mainly includes a front axle positioning mechanism, a tilt cylinder support positioning mechanism, and a tailstock positioning mechanism. The front axle positioning mechanism is located on the left side of the base plate and includes a base with a slide rail. A slidable slide block is installed inside the slide rail. A top wheel is installed on both sides of the slide block, and a threaded plate is installed in the middle of the slide block. A lead screw is installed inside the threaded plate, and a positioning fan plate is installed at the upper end of the slide block. The tilt cylinder support positioning mechanism includes two sets of columns, respectively located on the upper and lower sides of the base plate. A lead screw seat is installed on each column, and a threaded rod is installed inside the lead screw seat. An end plate is installed at the end of the threaded rod. The tailstock positioning mechanism is located on the right side of the base plate and is on the same straight line as the front axle positioning mechanism.

[0004] Currently, conventional welding fixtures require the use of different mechanisms to clamp the two parts separately. When clamping two mechanisms, they occupy a lot of space, have low integration, and can easily hinder the welding process. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a positioning and welding fixture for the front body assembly of a forklift, which includes a base plate and a clamping and positioning device. This positioning and welding fixture for the front body assembly of a forklift has the advantages of small space occupation and high integration.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A forklift front body assembly positioning and welding fixture includes a base plate and a clamping and positioning device. The clamping and positioning device is mounted on the base plate and includes a mounting plate, a drive assembly, a rotating frame, a pressure rod, a pressure plate, and a clamping mechanism. The mounting plate is fixedly connected to the base plate, the drive assembly is mounted on the mounting plate, the pressure rod is fixedly connected to the rotating frame, the pressure plate is fixedly connected to the pressure rod, a flexible pressure block is fixedly connected to the pressure plate, a limiting block that engages with the pressure rod is fixedly connected to the mounting plate, and the clamping mechanism is mounted on the pressure rod.

[0008] Preferably, the clamping mechanism includes a fixed clamping plate, a telescopic drive component, a support plate, a connecting plate, a sliding rod, and a movable clamping plate. The fixed clamping plate is fixedly connected to the pressure rod, the support plate is fixedly connected to the pressure plate, the sliding rod is slidably connected to the support plate, the movable clamping plate is slidably connected to the sliding rod, the telescopic drive component is fixedly mounted on the pressure rod, and the movable clamping plate is fixedly connected to the output end of the telescopic drive component and the sliding rod, respectively.

[0009] Preferably, the mounting plate is fixedly mounted with an electromagnet, and the pressure rod is fixedly connected with an iron plate whose position corresponds to that of the electromagnet.

[0010] Preferably, the fixing clamp is fixedly connected to a lateral positioning rod, and the lateral positioning rod has a bent section.

[0011] Preferably, the connecting plate is fixedly connected with a rib.

[0012] Preferably, the telescopic drive component is a telescopic cylinder.

[0013] Preferably, the drive assembly includes a pneumatic motor and a reducer. The pneumatic motor is fixedly mounted on the mounting plate, the pneumatic motor housing is fixedly connected to the reducer housing, the pneumatic motor output shaft is fixedly connected to the reducer input shaft, and the rotating frame is fixedly connected to the reducer output shaft.

[0014] Preferably, the base plate is fixedly installed with multiple support blocks.

[0015] Preferably, the base plate is fixedly connected to a limiting seat.

[0016] Preferably, the limiting seat has a limiting surface that fits against the workpiece.

[0017] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0018] This forklift front body assembly positioning welding fixture is a clamping and positioning device that integrates the drive components, pressure rods, pressure plates and clamping mechanisms into one unit. Compared with conventional welding fixtures that require different mechanisms to clamp two parts separately, it occupies less space, has a higher degree of integration, and can effectively reduce obstacles to the welding process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a forklift front body assembly positioning and welding fixture in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the clamping and positioning device in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping mechanism in an embodiment of this utility model.

[0022] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0023] 11. Base plate; 12. Support block; 13. Limiting seat; 14. Limiting surface; 21. Mounting plate; 22. Rotating frame; 23. Pressure rod; 24. Pressure plate; 25. Pressure block; 26. Limiting block; 27. Pneumatic motor; 28. Reducer; 31. Electromagnet; 32. Iron plate; 41. Fixed clamping plate; 42. Lateral positioning rod; 43. Bending section; 51. Telescopic drive component; 52. Support plate; 53. Connecting plate; 54. Sliding rod; 55. Movable clamping plate; 56. Rib plate; 61. Front body base; 62. Front body panel. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0025] refer to Figure 1-3 A forklift front body assembly positioning and welding fixture includes a base plate 11 and four clamping and positioning devices, which can clamp and position the workpiece at different positions. The clamping and positioning devices are mounted on the base plate 11, and multiple support blocks 12 are fixedly mounted on the base plate 11. A limiting seat 13 is fixedly connected to the base plate 11, and the limiting seat 13 is provided with a limiting surface 14 that conforms to the workpiece.

[0026] The clamping and positioning device includes a mounting plate 21, a drive assembly, a rotating frame 22, a pressure rod 23, a pressure plate 24, and a clamping mechanism. The mounting plate 21 is fixedly connected to the base plate 11. The drive assembly is mounted on the mounting plate 21. The pressure rod 23 is fixedly connected to the rotating frame 22. The pressure plate 24 is fixedly connected to the pressure rod 23. A flexible pressure block 25 is fixedly connected to the pressure plate 24. A limiting block 26 that engages with the pressure rod 23 is fixedly connected to the mounting plate 21. The clamping mechanism is mounted on the pressure rod 23. An electromagnet 31 is fixedly mounted on the mounting plate 21. An iron plate 32 corresponding to the position of the electromagnet 31 is fixedly connected to the pressure rod 23. The drive assembly includes a pneumatic motor 27 and a reducer 28. The pneumatic motor 27 is fixedly mounted on the mounting plate 21. The housing of the pneumatic motor 27 is fixedly connected to the housing of the reducer 28. The output shaft of the pneumatic motor 27 is fixedly connected to the input shaft of the reducer 28. The rotating frame 22 is fixedly connected to the output shaft of the reducer 28.

[0027] The clamping mechanism includes a fixed clamping plate 41, a telescopic drive component 51, a support plate 52, a connecting plate 53, a sliding rod 54, and a movable clamping plate 55. The fixed clamping plate 41 is fixedly connected to the pressure rod 23, the support plate 52 is fixedly connected to the pressure plate 24, the sliding rod 54 is slidably connected to the support plate 52, and the movable clamping plate 55 is slidably connected to the sliding rod 54. The telescopic drive component 51 is fixedly mounted on the pressure rod 23. The movable clamping plate 55 is fixedly connected to the output end of the telescopic drive component 51 and the sliding rod 54, respectively. The connecting plate 53 is fixedly connected to a rib plate 56 to improve the structural stability of the connecting plate 53. The fixed clamping plate 41 is fixedly connected to a lateral positioning rod 42, which has a bent section 43. The telescopic drive component 51 is a telescopic cylinder. When the telescopic cylinder is working, its output end drives the connecting plate 53, the sliding rod 54, and the movable clamping plate 55 to move, realizing the function of driving the movable clamping plate 55 to move through the telescopic drive component 51.

[0028] In use, the front vehicle body base 61 is placed on the base plate 11. The support block 12 provides support to the front vehicle body base 61 from below, pushing the front vehicle body base 61 until it is in contact with the limiting surface 14. The limiting seat 13 positions the front vehicle body base 61 horizontally. The drive assembly can drive the rotating frame 22 to rotate, causing the pressure rod 23, which is fixedly connected to the rotating frame 22, to rotate. The pressure rod 23 drives the pressure plate 24 to move towards the front vehicle body base 61 until the pressure rod 23 engages with the limiting block 26. The flexible pressure block 25 on the pressure plate 24 presses the front vehicle body base 61 firmly, preventing the front vehicle body base 61 from shaking. Then, the front body panel 62 is placed on the front body base 61, positioning it between the fixed clamping plate 41 and the movable clamping plate 55. The front body panel 62 is pushed until it engages with the bent section of the lateral positioning rod 42. Under the action of the telescopic drive component 51, the movable clamping plate 55 moves towards the fixed clamping plate 41 and clamps the front body panel 62 securely, thus achieving the positioning and stable clamping of the front body panel 62. This ensures the stability of the front body assembly during welding by achieving the positioning and clamping of the front body assembly.

[0029] This embodiment has the following advantages:

[0030] This forklift front body assembly positioning welding fixture integrates the drive assembly, pressure bar 23, pressure plate 24 and clamping mechanism into one clamping and positioning device. Compared with conventional welding fixtures that require different mechanisms to clamp two parts separately, it occupies less space, has a higher degree of integration, and can effectively reduce obstacles to the welding process.

[0031] When the telescopic drive component 51 is working, it drives the sliding rod 54 to slide on the support plate 52 through the connecting plate 53, thereby driving the movable clamping plate 55 to move closer to or away from the fixed clamping plate 41 through the sliding rod 54, so as to clamp or release the front body panel 62.

[0032] When the pressure rod 23 engages with the limiting block 26, the iron plate 32 moves to a position close to the electromagnet 31 as the pressure rod 23 rotates. At this time, the electromagnet 31 is energized to generate magnetic force, which allows the electromagnet 31 to attract the iron plate 32 through magnetic force. This further makes the pressure plate 24 more secure and reliable when pressing the front body base 61, and prevents the pressure rod 23 from being pushed when the movable clamp 55 pushes the front body panel 62 to press on the fixed clamp 41.

[0033] When the pneumatic motor 27 is working, it drives the reducer 28 to operate. The reducer 28 drives the rotating frame 22 to rotate, thus realizing the function of driving the rotating frame 22 to rotate through the drive assembly. By means of the reducer 28, the torque acting on the rotating frame 22, the pressure rod 23 and the pressure plate 24 can be increased, so that the pressure plate 24 and the flexible pressure block 25 can press the front body base 61 firmly, and can prevent the pressure rod 23 from being pushed when the movable clamp 55 pushes the front body panel 62 to press on the fixed clamp 41.

[0034] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A forklift front body assembly positioning and welding fixture, comprising a base plate (11) and a clamping and positioning device, wherein the clamping and positioning device is mounted on the base plate (11), characterized in that: The clamping and positioning device includes a mounting plate (21), a drive assembly, a rotating frame (22), a pressure rod (23), a pressure plate (24), and a clamping mechanism. The mounting plate (21) is fixedly connected to the base plate (11). The drive assembly is mounted on the mounting plate (21). The pressure rod (23) is fixedly connected to the rotating frame (22). The pressure plate (24) is fixedly connected to the pressure rod (23). A flexible pressure block (25) is fixedly connected to the pressure plate (24). A limiting block (26) that engages with the pressure rod (23) is fixedly connected to the mounting plate (21). The clamping mechanism is mounted on the pressure rod (23).

2. The forklift front body assembly positioning and welding fixture according to claim 1, characterized in that: The clamping mechanism includes a fixed clamping plate (41), a telescopic drive component (51), a support plate (52), a connecting plate (53), a sliding rod (54), and a movable clamping plate (55). The fixed clamping plate (41) is fixedly connected to the pressure rod (23), the support plate (52) is fixedly connected to the pressure plate (24), the sliding rod (54) is slidably connected to the support plate (52), and the movable clamping plate (55) is slidably connected to the sliding rod (54). The telescopic drive component (51) is fixedly installed on the pressure rod (23), and the movable clamping plate (55) is fixedly connected to the output end of the telescopic drive component (51) and the sliding rod (54) respectively.

3. The forklift front body assembly positioning and welding fixture according to claim 2, characterized in that: The mounting plate (21) is fixedly mounted with an electromagnet (31), and the pressure rod (23) is fixedly connected with an iron plate (32) whose position corresponds to that of the electromagnet (31).

4. The forklift front body assembly positioning and welding fixture according to claim 2, characterized in that: The fixed clamp (41) is fixedly connected to a lateral positioning rod (42), and the lateral positioning rod (42) is provided with a bent section (43).

5. The forklift front body assembly positioning and welding fixture according to claim 2, characterized in that: The connecting plate (53) is fixedly connected to the rib plate (56).

6. The forklift front body assembly positioning and welding fixture according to claim 2, characterized in that: The telescopic drive component (51) is a telescopic cylinder.

7. The forklift front body assembly positioning and welding fixture according to claim 1, characterized in that: The drive assembly includes a pneumatic motor (27) and a reducer (28). The pneumatic motor (27) is fixedly mounted on the mounting plate (21). The housing of the pneumatic motor (27) is fixedly connected to the housing of the reducer (28). The output shaft of the pneumatic motor (27) is fixedly connected to the input shaft of the reducer (28). The rotating frame (22) is fixedly connected to the output shaft of the reducer (28).

8. The forklift front body assembly positioning and welding fixture according to claim 1, characterized in that: The base plate (11) is fixedly installed with multiple support blocks (12).

9. The forklift front body assembly positioning and welding fixture according to claim 1, characterized in that: The base plate (11) is fixedly connected to the limit seat (13).

10. The forklift front body assembly positioning and welding fixture according to claim 9, characterized in that: The limiting seat (13) is provided with a limiting surface (14) that fits against the workpiece.

Images