Counterweight and steering axle positioning and assembling tool

Abstract

The utility model provides a counter weight and steering axle positioning and assembling tool which comprises a base. The counterweight bracket is used for mounting a counterweight; the lifting bracket is used for mounting a steering axle; the lifting support is provided with an assembling position and a non-assembling position, and when the lifting support is located at the assembling position, the lifting support corresponds to the balance weight support up and down. When the lifting support is located at the non-assembly position, the lifting support does not vertically correspond to the balance weight support. The lifting support can do up-down telescopic motion, and when the lifting support is located at the assembly position, the lifting support can drive the steering axle to move upwards so that the steering axle can abut against the balance weight. The horizontal driving device is connected with the lifting support and used for driving the lifting support to horizontally move relative to the base so that the lifting support can be switched between the assembling position and the non-assembling position. According to the counterweight and steering axle positioning assembly tool, positioning installation of the counterweight and the steering axle can be facilitated, the assembly efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of counterweight assembly tooling, in particular to a counterweight and steering axle positioning and assembly tooling. Background Art

[0002] The counterweight of a forklift is generally installed on the steering axle. The counterweight serves to increase the weight of the rear of the forklift and balance the center of gravity of the entire vehicle.

[0003] Currently, when assembling the counterweight and steering axle, the counterweight is usually hoisted to the steering axle using lifting equipment, and then the two are assembled (for example, by bolting). However, this installation method often results in inaccurate alignment, which affects assembly efficiency and increases production costs. Utility Model Content

[0004] The purpose of the present invention is to provide a counterweight and steering axle positioning and assembly tooling, aiming to solve or at least partially solve the deficiencies of the above-mentioned background technology, which can facilitate the positioning and installation of the counterweight and steering axle, improve assembly efficiency and reduce production costs.

[0005] The utility model provides a counterweight and steering axle positioning assembly tool, comprising:

[0006] base;

[0007] A counterweight bracket, the counterweight bracket is located above the base and connected to the base, and the counterweight bracket is used to install a counterweight;

[0008] A lifting bracket, the lifting bracket being arranged on the base and being capable of horizontally moving relative to the base, and the steering axle being mounted on the lifting bracket; the lifting bracket having an assembly position and a non-assembly position; when the lifting bracket is in the assembly position, the lifting bracket corresponds to the counterweight bracket in vertical alignment; when the lifting bracket is in the non-assembly position, the lifting bracket does not correspond to the counterweight bracket in vertical alignment; the lifting bracket is capable of telescopic movement up and down; when the lifting bracket is in the assembly position, the lifting bracket can drive the steering axle to move upward so that the steering axle abuts against the counterweight;

[0009] A horizontal driving device is connected to the lifting bracket, and is used to drive the lifting bracket to move horizontally relative to the base, so that the lifting bracket can be converted between the assembly position and the non-assembly position.

[0010] Furthermore, the lifting bracket includes a mobile bracket, a mounting seat and a lifting drive device, the mobile bracket is arranged on the base, the horizontal drive device is connected to the mobile bracket, and the horizontal drive device is used to drive the mobile bracket to move horizontally relative to the base;

[0011] The lifting drive device is connected to the movable bracket and the mounting seat, and is used to drive the mounting seat to move upward and downward relative to the movable bracket; the steering axle is installed on the mounting seat.

[0012] Furthermore, movable parts are provided on opposite sides of the movable bracket, and sliding grooves are provided on opposite sides of the movable bracket on the base. The movable parts on opposite sides are respectively located in the sliding grooves on opposite sides, and the movable parts can move along the sliding grooves.

[0013] Furthermore, the moving part is a roller rotatably connected to the moving bracket, and the roller can roll along the sliding groove.

[0014] Furthermore, the base includes a bottom plate and an annular frame fixedly arranged on the bottom plate, and the counterweight bracket is connected to the bottom plate; the lifting bracket and the horizontal drive device are located in the annular frame, and the horizontal drive device is connected to the annular frame, and the slide groove is arranged on the inner walls on opposite sides of the annular frame.

[0015] Furthermore, the counterweight bracket includes a mounting portion and a supporting portion, the mounting portion is used to mount the counterweight; the mounting portion is connected to the base plate through the supporting portion, the supporting portion is located on one side outside the annular frame, and the mounting portion is located above the annular frame; when the lifting bracket is in the assembly position, the movable bracket corresponds to the mounting portion up and down.

[0016] Furthermore, the mobile bracket includes an upper support base, a lower support base and a support leg, the upper support base is located above the lower support base, the two ends of the support leg are respectively connected to the upper support base and the lower support base, and the horizontal drive device is connected to the lower support base;

[0017] The mounting seat is located above the upper support seat, the bottom end of the lifting drive device is connected to the lower support seat, and the top end of the lifting drive device passes through the upper support seat and is connected to the mounting seat; when the lifting drive device drives the mounting seat to retract downward, the mounting seat can be placed on the upper support seat.

[0018] Furthermore, the upper support seat is provided with a through hole for the lifting drive device to pass through.

[0019] Furthermore, a mounting plate is fixedly provided on the counterweight bracket, and the mounting plate is used to be connected to the counterweight.

[0020] Furthermore, the counterweight and steering axle positioning assembly tool further includes a control device and a position sensor, wherein the control device is connected to the horizontal drive device and the position sensor respectively; the position sensor is correspondingly arranged at the assembly position of the lifting bracket, and the position sensor is used to sense the lifting bracket;

[0021] When the lifting bracket moves to the assembly position, the position sensor detects a position signal of the lifting bracket, and the control device controls the horizontal driving device to stop moving according to the position signal detected by the position sensor.

[0022] The counterweight and steering axle positioning and assembly tool provided by the utility model is provided with a counterweight bracket, a lifting bracket and a horizontal drive device. During assembly, the lifting bracket is pre-placed in a non-assembly position, at which time the counterweight and steering axle can be conveniently installed on the counterweight bracket and the lifting bracket, respectively. The horizontal drive device is then used to drive the lifting bracket to the assembly position, so that the lifting bracket and the counterweight bracket correspond vertically, thereby making the counterweight and the steering axle correspond vertically. The lifting bracket is then used to drive the steering axle upward to abut against the counterweight, thereby facilitating the subsequent installation and fixation of the steering axle and the counterweight. The counterweight and steering axle positioning and assembly tool can realize the rapid positioning of the steering axle and the counterweight, and facilitate the installation of the steering axle and the counterweight, thereby improving assembly efficiency, reducing production costs, and having high safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the positioning and assembly tooling for the counterweight and steering axle in an embodiment of the present utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the middle lifting bracket.

[0025] Figure 3 for Figure 2 Schematic diagram of the explosion structure.

[0026] Figure 4 It is a structural schematic diagram of the counterweight and steering axle positioning assembly tooling in the initial state in an embodiment of the present utility model.

[0027] Figure 5 It is a structural schematic diagram of the counterweight and steering axle positioning assembly tooling in the assembled state in an embodiment of the present utility model. DETAILED DESCRIPTION

[0028] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] The terms "first", "second", "third", "fourth" and so on (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The directional terms "up," "down," "left," "right," "front," "back," "top," and "bottom" (if any) used in the specification and claims of this utility model are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are intended only for clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.

[0031] like Figures 1 to 5 As shown, the counterweight and steering axle positioning assembly tool provided by the embodiment of the present utility model includes:

[0032] Base 1;

[0033] The counterweight bracket 2 is located above the base 1 and is connected to the base 1. The counterweight bracket 2 is used to install the counterweight 7;

[0034] A lifting bracket 3 is provided on the base 1 and is capable of horizontal movement relative to the base 1. The lifting bracket 3 is used to mount the steering axle 8, and at least a portion of the counterweight bracket 2 is located above the lifting bracket 3.

[0035] The lifting bracket 3 has an assembly position and a non-assembly position. Figure 5 As shown, when the lifting bracket 3 is in the assembly position, the lifting bracket 3 is close to the counterweight bracket 2, and the lifting bracket 3 corresponds to the counterweight bracket 2 up and down. At this time, the counterweight 7 corresponds to the steering bridge 8 up and down; Figure 1 and Figure 4 As shown, when the lifting bracket 3 is in the non-assembly position, the lifting bracket 3 is away from the counterweight bracket 2, and the lifting bracket 3 and the counterweight bracket 2 do not correspond to each other up and down. At this time, the steering axle 8 can be conveniently pre-installed on the lifting bracket 3, that is, the steering axle 8 is prevented from abutting and interfering with the counterweight bracket 2 when being installed on the lifting bracket 3 (it should be noted that the non-assembly position of the lifting bracket 3 is not unique. As long as the lifting bracket 3 is in the non-assembly position, the steering axle 8 can be conveniently installed on the lifting bracket 3). The lifting bracket 3 can telescopically move up and down. When the lifting bracket 3 is in the assembly position, the lifting bracket 3 can drive the steering axle 8 to move upward so that the steering axle 8 abuts against the counterweight 7, so as to facilitate the assembly of the counterweight 7 and the steering axle 8;

[0036] The horizontal driving device 4 is connected to the lifting bracket 3 and is used to drive the lifting bracket 3 to move horizontally relative to the base 1 so that the lifting bracket 3 can be converted between the assembly position and the non-assembly position.

[0037] Specifically, in this embodiment, the lifting bracket 3 can move forward and backward relative to the base 1, and the horizontal driving device 4 is used to drive the lifting bracket 3 to move forward and backward relative to the base 1. Figure 1 and Figure 4 As shown, when the counterweight and steering axle positioning and assembly tooling is in the initial state, the lifting bracket 3 is in the non-assembly position, the lifting bracket 3 is located in front of the counterweight bracket 2, and the lifting bracket 3 is in a downwardly retracted state. At this time, the counterweight 7 and the steering axle 8 can be conveniently installed on the counterweight bracket 2 and the lifting bracket 3 respectively; then the horizontal drive device 4 is used to drive the lifting bracket 3 to move backward to the assembly position, so that the lifting bracket 3 and the counterweight bracket 2 correspond to each other up and down, and then the counterweight 7 and the steering axle 8 correspond to each other up and down, and then the lifting bracket 3 is used to drive the steering axle 8 to move upward, so that the steering axle 8 is in contact with the counterweight 7, thereby facilitating the subsequent installation and fixation of the steering axle 8 and the counterweight 7 (the two are generally fixed by screws).

[0038] Furthermore, if Figures 1 to 5 As shown, in this embodiment, the lifting bracket 3 includes a mobile bracket 31, a mounting base 32, and a lifting drive device 33. The mobile bracket 31 is disposed on the base 1 and can move horizontally relative to the base 1. The horizontal drive device 4 is connected to the mobile bracket 31 and is used to drive the mobile bracket 31 to move horizontally relative to the base 1.

[0039] The mounting base 32 is a plate-like structure, and is used to mount the steering axle 8 (generally, the steering axle 8 is fixed to the mounting base 32 by bolts to position the steering axle 8 and prevent it from shifting or falling off). The lifting drive device 33 is connected to the mobile bracket 31 and the mounting base 32 (specifically, the ends of the lifting drive device 33 are connected to the mobile bracket 31 and the mounting base 32, respectively). The lifting drive device 33 is used to drive the mounting base 32 to move up and down relative to the mobile bracket 31. The mounting base 32 and the lifting drive device 33 can move with the mobile bracket 31.

[0040] Furthermore, if Figures 1 to 3 As shown, in this embodiment, movable portions 34 are provided on opposite sides of the movable bracket 31. Slide grooves 13 are provided on the base 1 on opposite sides of the movable bracket 31. The slide grooves 13 are adapted to engage with the movable portions 34. The movable portions 34 are positioned within the slide grooves 13 on opposite sides, respectively, and are capable of moving along the slide grooves 13. This arrangement not only reduces the movement resistance of the movable bracket 31, facilitating its movement, but also guides and limits its movement, preventing its movement path from deviating.

[0041] Furthermore, if Figures 1 to 3As shown, in this embodiment, the moving portion 34 is a roller rotatably connected to the moving bracket 31, and the roller can roll along the slide groove 13 in the slide groove 13, thereby minimizing the movement resistance of the moving bracket 31 and ensuring smooth movement of the moving bracket 31. Of course, in other embodiments, the moving portion 34 can also be a sliding portion, and the moving portion 34 can slide along the slide groove 13 in the slide groove 13.

[0042] Furthermore, if Figures 1 to 3 As shown, in this embodiment, the base 1 includes a base plate 11 and an annular frame 12 fixedly mounted on the base plate 11. The annular frame 12 protrudes from the upper surface of the base plate 11 and has an annular structure. The counterweight bracket 2 is connected to the base plate 11; the lifting bracket 3 and the horizontal drive device 4 are located within the annular frame 12. The horizontal drive device 4 is connected to the annular frame 12. Slide grooves 13 are provided on the inner walls of the annular frame 12 on opposite sides, allowing the lifting bracket 3 to move horizontally within the annular frame 12.

[0043] Specifically, in this embodiment, the annular frame 12 includes two longitudinal beams 121 and two transverse beams 122, each of which is channel steel. The two longitudinal beams 121 are spaced apart and arranged opposite each other in the left and right directions, and the two transverse beams 122 are spaced apart and arranged opposite each other in the front and back directions. The two longitudinal beams 121 and the two transverse beams 122 are interconnected in pairs. The chute 13 is provided on the inner sidewalls of the two longitudinal beams 121, that is, the two opposite sides of the movable bracket 31 are slidably connected to the two longitudinal beams 121.

[0044] Furthermore, if Figure 1 and Figure 5 As shown, in this embodiment, the counterweight bracket 2 includes a mounting portion 21 and a support portion 22. The mounting portion 21 is used to mount the counterweight 7. The mounting portion 21 is connected to the base plate 11 via the support portion 22. The support portion 22 is located on the side outside the annular frame 12. The mounting portion 21 and the support portion 22 are connected by a bend, and the mounting portion 21 is located above the annular frame 12. When the lifting bracket 3 is in the assembly position, the movable bracket 31 and the mounting portion 21 correspond vertically. This arrangement can prevent the movable bracket 31 and the steering axle 8 from colliding with the counterweight bracket 2 when the movable bracket 31 moves horizontally within the annular frame 12.

[0045] Furthermore, if Figures 1 to 3 As shown, in this embodiment, the movable bracket 31 includes an upper support seat 311, a lower support seat 312 and a support leg 313. The upper support seat 311 is located above the lower support seat 312, and the upper support seat 311 and the lower support seat 312 are spaced apart above and below. The two ends of the support leg 313 are respectively connected to the upper support seat 311 and the lower support seat 312, and the horizontal drive device 4 is connected to the lower support seat 312.

[0046] The mounting seat 32 is located above the upper support seat 311. The bottom end of the lifting drive device 33 is connected to the lower support seat 312, and the top end of the lifting drive device 33 passes through the upper support seat 311 and is connected to the mounting seat 32. When the lifting drive device 33 drives the mounting seat 32 to extend upward, the mounting seat 32 is separated from the upper support seat 311; when the lifting drive device 33 drives the mounting seat 32 to retract downward, the mounting seat 32 can be placed on the upper support seat 311. This arrangement ensures that the mounting seat 32 and the steering axle 8 are supported by the support seat 311 in the initial state, rather than by the lifting drive device 33 (the lifting drive device 33 only supports the mounting seat 32 and the steering axle 8 during assembly). This reduces the carrying load of the lifting drive device 33 and increases the service life of the lifting drive device 33.

[0047] Specifically, in this embodiment, the upper support seat 311 is provided with a through hole 310 for the lifting drive device 33 to pass through; the upper support seat 311 is formed by four interconnected rectangular tubes, and the through hole 310 is formed between the four rectangular tubes. In this embodiment, the movable bracket 31 also includes two side panels 314. The lower support seat 312 is a long, plate-like structure, and the two side panels 314 are fixedly connected to opposite ends of the lower support seat 312. There are four support legs 313, which are located on opposite sides of the upper support seat 311. The support legs 313 are arranged at an angle, with one end of each support leg 313 fixedly connected to the upper support seat 311 and the other end of each support leg 313 fixedly connected to the corresponding side panel 314. The movable portion 34 (roller) is rotatably connected to the side panel 314 via a rotating shaft 315.

[0048] Furthermore, if Figures 1 to 3 As shown, in this embodiment, the lifting drive device 33 is a jack, and a top plate 331 is fixed to the top of the jack. The top plate 331 is fixedly connected to the mounting base 32 by bolts 35. The jack can be a manual jack or an electric jack (for example, the extension and retraction of the electric jack can be controlled by the control device 5 described below).

[0049] Furthermore, if Figure 1 and Figure 5 As shown, in this embodiment, a mounting plate 23 is fixedly provided on the counterweight bracket 2, and the mounting plate 23 is used to connect with the counterweight 7. Specifically, the mounting plate 23 is fixedly provided on the mounting portion 21. During installation, the counterweight 7 is placed on the mounting portion 21, and the counterweight 7 is fixedly connected to the mounting plate 23 by bolts to position the counterweight 7 and prevent the counterweight 7 from shifting or falling off.

[0050] Furthermore, if Figure 1 and Figure 5As shown, in this embodiment, the counterweight and steering axle positioning assembly tool further includes a control device 5 and a position sensor 6. The control device 5 is connected to the horizontal drive device 4 and the position sensor 6 respectively; the position sensor 6 is correspondingly provided at the assembly position of the lifting bracket 3, and the position sensor 6 is used to sense the position of the lifting bracket 3;

[0051] When the lifting bracket 3 moves to the assembly position, the position sensor 6 detects the position signal of the lifting bracket 3, and the control device 5 controls the horizontal drive device 4 to stop moving according to the position signal detected by the position sensor 6, thereby causing the lifting bracket 3 to stop moving after moving to the assembly position.

[0052] Specifically, in this embodiment, the control device 5 includes a control cabinet and electrical components disposed within the control cabinet. The position sensor 6 can be a proximity sensor (e.g., a proximity switch), and the control device 5 is electrically connected to the position sensor 6 via a cable 51. The horizontal drive device 4 is a pneumatic cylinder, and the control device 5 is connected to the horizontal drive device 4 via an air pipe 52. (Of course, in other embodiments, the horizontal drive device 4 can also be a telescopic drive device such as an oil cylinder, an electric cylinder, or a linear guide module.) When the lifting bracket 3 moves to the assembly position, the position sensor 6 senses the lifting bracket 3, causing the control device 5 to control the horizontal drive device 4 to stop its telescopic movement. In this embodiment, the position sensor 6 is disposed on the base 1; of course, in other embodiments, the position sensor 6 can also be disposed in other locations, such as on the counterweight bracket 2.

[0053] Further, if Figures 1 to 5 As shown, in this embodiment, the workflow of the counterweight and steering axle positioning assembly tool is as follows:

[0054] (1) Figure 1 and Figure 4 As shown, when the counterweight and steering axle positioning and assembly tool is in its initial state, the lifting bracket 3 is in the non-assembly position, located in front of the counterweight bracket 2, and is retracted downward. The counterweight 7 and steering axle 8 are hoisted onto the counterweight bracket 2 and the lifting bracket 3, respectively, using a hoisting device (or other equipment). The counterweight 7 is fixed to the counterweight bracket 2 with bolts, and the steering axle 8 is fixed to the lifting bracket 3 with bolts.

[0055] (2) Figure 5As shown, the horizontal drive device 4 is used to drive the lifting bracket 3 to move backward. When the lifting bracket 3 moves to the assembly position, the position sensor 6 detects the position signal of the lifting bracket 3. The control device 5 controls the horizontal drive device 4 to stop moving according to the position signal detected by the position sensor 6, so that the lifting bracket 3 stops moving after moving to the assembly position, thereby making the counterweight 7 and the steering bridge 8 correspond to each other vertically; then the lifting bracket 3 is used to drive the steering bridge 8 to move upward (before the lifting bracket 3 moves upward, the steering bridge 8 is located below the counterweight 7, and the steering bridge 8 and the counterweight 7 are spaced apart vertically to prevent the steering bridge 8 from colliding with the counterweight 7 during the backward movement) until the steering bridge 8 abuts the counterweight 7, and then the steering bridge 8 and the counterweight 7 are installed and fixed.

[0056] (3) After the assembly is completed, the counterweight 7 and the counterweight bracket 2, as well as the steering axle 8 and the lifting bracket 3 are respectively unfixed, and then the assembly of the steering axle 8 and the counterweight 7 is removed from the counterweight bracket 2; the lifting bracket 3 is then driven forward and reset by the horizontal drive device 4, so that the lifting bracket 3 moves to the non-assembly position (the position of the lifting bracket 3 when it is reset can be determined by the minimum stroke of the horizontal drive device 4) to facilitate the next assembly work.

[0057] The counterweight and steering axle positioning and assembly tool provided in the embodiment of the utility model is provided with a counterweight bracket 2, a lifting bracket 3, and a horizontal drive device 4. During assembly, the lifting bracket 3 is pre-positioned in a non-assembly position, at which point the counterweight 7 and steering axle 8 can be conveniently installed on the counterweight bracket 2 and the lifting bracket 3, respectively. The horizontal drive device 4 then drives the lifting bracket 3 to the assembly position, so that the lifting bracket 3 and the counterweight bracket 2 are aligned vertically, thereby aligning the counterweight 7 and the steering axle 8 vertically. The lifting bracket 3 then drives the steering axle 8 upward to abut against the counterweight 7, thereby facilitating the subsequent installation and fixation of the steering axle 8 and the counterweight 7. This counterweight and steering axle positioning and assembly tool can achieve rapid positioning of the steering axle 8 and the counterweight 7, facilitate installation of the steering axle 8 and the counterweight 7, improve assembly efficiency, reduce production costs, and provide high safety. This tool is suitable for positioning and installing large-tonnage counterweights 7 and steering axles 8.

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A counterweight and steering axle positioning assembly tool, characterized in that: include: Base (1); a counterweight bracket (2), the counterweight bracket (2) being located above the base (1) and connected to the base (1), and the counterweight bracket (2) being used for mounting a counterweight (7); A lifting bracket (3), the lifting bracket (3) is arranged on the base (1), and the lifting bracket (3) can move horizontally relative to the base (1), and the lifting bracket (3) is used to install a steering bridge (8); the lifting bracket (3) has an assembly position and a non-assembly position, when the lifting bracket (3) is in the assembly position, the lifting bracket (3) corresponds to the counterweight bracket (2) in the upper and lower directions; when the lifting bracket (3) is in the non-assembly position, the lifting bracket (3) does not correspond to the counterweight bracket (2) in the upper and lower directions; the lifting bracket (3) can move telescopically up and down, when the lifting bracket (3) is in the assembly position, the lifting bracket (3) can drive the steering bridge (8) to move upward, so that the steering bridge (8) abuts against the counterweight (7); A horizontal drive device (4) is connected to the lifting bracket (3), and the horizontal drive device (4) is used to drive the lifting bracket (3) to move horizontally relative to the base (1), so that the lifting bracket (3) can be switched between an assembly position and a non-assembly position.

2. The counterweight and steering axle positioning and assembly tool as claimed in claim 1, characterized in that: The lifting bracket (3) comprises a movable bracket (31), a mounting seat (32) and a lifting drive device (33); the movable bracket (31) is arranged on the base (1); the horizontal drive device (4) is connected to the movable bracket (31); the horizontal drive device (4) is used to drive the movable bracket (31) to move horizontally relative to the base (1); The lifting drive device (33) is connected to the movable bracket (31) and the mounting seat (32), and the lifting drive device (33) is used to drive the mounting seat (32) to move upward and downward relative to the movable bracket (31); the steering axle (8) is mounted on the mounting seat (32).

3. The counterweight and steering axle positioning and assembly tool as claimed in claim 2, characterized in that: The movable bracket (31) is provided with movable parts (34) on opposite sides thereof, and the base (1) is provided with sliding grooves (13) on opposite sides thereof. The movable parts (34) on opposite sides thereof are respectively located in the sliding grooves (13) on opposite sides thereof, and the movable parts (34) are capable of moving along the sliding grooves (13).

4. The counterweight and steering axle positioning and assembly tool as claimed in claim 3, characterized in that: The moving part (34) is a roller rotatably connected to the moving bracket (31), and the roller can roll along the sliding groove (13).

5. The counterweight and steering axle positioning and assembly tool as claimed in claim 3, characterized in that: The base (1) comprises a bottom plate (11) and an annular frame (12) fixedly arranged on the bottom plate (11); the counterweight bracket (2) is connected to the bottom plate (11); the lifting bracket (3) and the horizontal driving device (4) are located in the annular frame (12); the horizontal driving device (4) is connected to the annular frame (12); and the sliding groove (13) is arranged on the inner walls of the annular frame (12) on opposite sides.

6. The counterweight and steering axle positioning and assembly tool as claimed in claim 5, characterized in that: The counterweight bracket (2) comprises a mounting portion (21) and a supporting portion (22); the mounting portion (21) is used to mount the counterweight (7); the mounting portion (21) is connected to the base plate (11) via the supporting portion (22); the supporting portion (22) is located on a side outside the annular frame (12); and the mounting portion (21) is located above the annular frame (12); when the lifting bracket (3) is in the assembly position, the movable bracket (31) corresponds to the mounting portion (21) in upper and lower positions.

7. The counterweight and steering axle positioning and assembly tool as claimed in claim 2, characterized in that: The movable bracket (31) comprises an upper support seat (311), a lower support seat (312) and a support leg (313); the upper support seat (311) is located above the lower support seat (312); both ends of the support leg (313) are respectively connected to the upper support seat (311) and the lower support seat (312); and the horizontal driving device (4) is connected to the lower support seat (312); The mounting seat (32) is located above the upper support seat (311), the bottom end of the lifting drive device (33) is connected to the lower support seat (312), and the top end of the lifting drive device (33) passes through the upper support seat (311) and is connected to the mounting seat (32); when the lifting drive device (33) drives the mounting seat (32) to retract downward, the mounting seat (32) can be placed on the upper support seat (311).

8. The counterweight and steering axle positioning and assembly tool as claimed in claim 7, characterized in that: The upper support seat (311) is provided with a through hole (310) for the lifting drive device (33) to pass through.

9. The counterweight and steering axle positioning and assembly tool as claimed in claim 1, characterized in that: A mounting plate (23) is fixedly provided on the counterweight bracket (2), and the mounting plate (23) is used to be connected to the counterweight (7).

10. The counterweight and steering axle positioning and assembly tool according to any one of claims 1 to 9, characterized in that: The counterweight and steering axle positioning assembly tool further includes a control device (5) and a position sensor (6), wherein the control device (5) is connected to the horizontal drive device (4) and the position sensor (6) respectively; the position sensor (6) is correspondingly arranged at the assembly position of the lifting bracket (3), and the position sensor (6) is used to sense the lifting bracket (3); When the lifting bracket (3) moves to the assembly position, the position sensor (6) detects a position signal of the lifting bracket (3), and the control device (5) controls the horizontal driving device (4) to stop moving according to the position signal detected by the position sensor (6).

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