Welding and positioning tool for main beam of crane

Abstract

The utility model relates to the technical field of crane main beam welding, and discloses a crane main beam welding positioning tool which comprises a bearing bottom plate, the upper end of the bearing bottom plate is fixedly connected with a fixed supporting plate, and the upper end of the bearing bottom plate is fixedly connected with a limiting supporting plate. When the welding positioning tool is used, the welding positioning tool is placed at the position of a main beam of the crane, so that the welding positioning tool is fixed, then the mechanical arm is rotated to drive the movable rotating shaft to rotate, and when the movable rotating shaft rotates to a proper angle and height, the electric telescopic rod located above the limiting block is started; and after the step is completed, the ejector rod can be rotated again, and due to the fact that the bottom end of the ejector rod is fixedly connected with the top of the rotating ball, and the rotating ball is rotationally connected to the bottom end of the inner wall of the clamping groove, the limiting rod in front of the connecting rod can be exactly connected with a limiting hole formed in the mechanical arm in a clamped mode, so that the first step of positioning is completed. Therefore, the positioning stability of the mechanical arm can be ensured again.

Description

Technical Field

[0001] The utility model relates to the technical field of crane main beam welding, in particular to a welding positioning tooling for crane main beams. Background Technique

[0002] During the processing of crane main beams, a movable welding tooling is required to weld the crane main beams. First, the main beam plate is placed on the web, and then the welding tooling is placed on the main beam plate. During the movement of the welding tooling, solder is evenly placed at the welding joint of the main beam plate and the web, and then the solder is heated to a molten state by a welding head, so that the main beam plate and the web are welded to each other.

[0003] In the existing welding positioning tooling for crane main beams, during use, since the movable welding tooling needs to be welded to the crane first, and the welding positioning tooling is directly placed on the main beam plate during the moving welding process, the movement of the welding tooling is likely to be offset due to external and human factors, thus affecting the welding positioning work of the crane main beam. Content of the Utility Model

[0004] The purpose of the utility model is to provide a welding positioning tooling for crane main beams, so as to solve the problem that during use, since the movable welding tooling needs to be welded to the crane first, and the positioning tooling is directly placed on the main beam plate during the moving welding process, the movement of the welding tooling is likely to be offset due to external and human factors, thus affecting the welding positioning work of the crane main beam as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A welding positioning tooling for crane main beams, including a load-bearing bottom plate, a fixed support plate is fixedly connected to the upper end of the load-bearing bottom plate, a limit support plate is fixedly connected to the upper end of the load-bearing bottom plate, the fixed support plate and the limit support plate are symmetrically arranged about the center of the load-bearing bottom plate, a fixed block is fixedly connected to the front surface of the limit support plate, a docking hole is opened at one end of the fixed block away from the limit support plate, a support plate is fixedly connected to the bottom end of the inner wall of the docking hole, an operation plate is fixedly connected to the upper end of the support plate, and further includes: a rotating mechanism, the rotating mechanism includes a rotating rod rotatably connected to the front surface of the fixed support plate, a docking rod is fixedly connected to one end of the rotating rod away from the front surface of the fixed support plate, a fixed mechanism is fixedly connected to the surface of the docking rod, and a turntable is fixedly connected to one end of the fixed mechanism away from the docking rod.

[0006] As a further preference of this technical solution, a rotating shaft is rotatably connected to one end of the fixed support plate away from the rotating rod. The rotating rod rotatably penetrates the fixed support plate. A rotating shaft is fixedly connected to the end of the rotating rod away from the docking rod. The number of the rotating shafts is set to two, and the two rotating shafts are symmetrically arranged about the center of the load-bearing bottom plate. The rotating shaft rotatably penetrates the limiting support plate. A rotating gear is fixedly connected to the end of the rotating shaft away from the limiting support plate. A rotating cylinder is fixedly connected to the end of the rotating gear away from the limiting support plate.

[0007] As a further preference of this technical solution, a positioning mechanism is arranged at the upper end of the operation board. The positioning mechanism includes a positioning seat fixedly connected above the operation board. A groove is formed in the center of the positioning seat. A movable rotating shaft is rotatably connected to one end of the positioning seat away from the operation board. A robotic arm is fixedly connected to the front of the movable rotating shaft. A first limiting block is fixedly connected above the operation board. A first limiting rod is fixedly connected to the upper end of the first limiting block. A limiting hole is formed in the side end of the robotic arm. A positioning block is fixedly connected to the upper end of the operation board. The positioning block is located directly below the robotic arm. A connecting plate is fixedly connected to the end of the robotic arm away from the limiting hole.

[0008] As a further preference of this technical solution, a limiting mechanism is arranged at the upper end of the operation board. The limiting mechanism includes a second limiting block fixedly connected to the upper end of the operation board. An electric telescopic rod is fixedly connected to one end of the second limiting block away from the operation board. A rotating ring is rotatably connected to the end of the electric telescopic rod away from the limiting block. A connecting rod is fixedly connected to the front of the rotating ring. A second limiting rod is fixedly connected to the end of the connecting rod away from the rotating ring.

[0009] As a further preference of this technical solution, a fixing mechanism is arranged inside the groove. The fixing mechanism includes a fixing plate fixedly connected to the inner wall of the groove. A clamping groove is formed in the front of the fixing plate. A rotating groove is formed at the bottom end of the clamping groove. A rotating ball is rotatably connected to the bottom end inner wall of the rotating groove. A top rod is fixedly connected to the end of the rotating ball away from the rotating groove.

[0010] As a further preference of this technical solution, the number of the fixing mechanisms is set to several, and the several fixing mechanisms are all fixedly connected to the surface of the docking rod.

[0011] As a further preference of this technical solution, a clamping plate is fixedly connected to the inner wall of the robotic arm. A clamping column is fixedly connected to the upper end of the clamping plate. The number of the robotic arms is set to two, and the two robotic arms are symmetrically arranged about the center of the load-bearing bottom plate and are clamped by the clamping plate at the same time.

[0012] The utility model provides a welding positioning tooling for a crane main beam, and has the following beneficial effects:

[0013] (1) When in use, the welding positioning tooling of the present utility model is placed at the position of the crane main girder to complete its fixation. Subsequently, the robotic arm is rotated so that the robotic arm drives the movable rotating shaft to rotate. When it is rotated to an appropriate angle and height, the electric telescopic rod located above the limit block is activated, so that the limit rod directly in front of the connecting rod can just be clamped with the limit hole opened on the robotic arm, thus completing the first step of positioning. After this step is completed, the ejector rod can be rotated again. Since the bottom end of the ejector rod is fixedly connected to the top of the rotating ball, and since the rotating ball is rotatably connected to the bottom end of the inner wall of the card slot, the positioning stability of the robotic arm can be ensured again.

[0014] (2) In the present utility model, rotating shafts are rotatably connected to one ends of the fixed support plate and the limit support plate close to the fixed block. Thus, when the turntable and the rotating cylinder are rotated respectively, they will drive the two fixed blocks to rotate respectively. Therefore, when the welding is completed and rotated, the welding positioning tooling can be protected and maintained, thereby extending the service life of the welding positioning tooling. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the positioning mechanism structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the fixing mechanism structure of the present utility model;

[0018] Figure 4 is a schematic cross-sectional structure diagram of the present utility model;

[0019] Figure 5 is the present utility model Figure 3 Enlarged schematic diagram of part A in.

[0020] In the figure: 1, load-bearing bottom plate; 11, fixed support plate; 12, limit support plate; 13, fixed block; 14, support plate; 15, operation plate; 2, rotating mechanism; 21, rotating rod; 22, docking rod; 23, fixing mechanism; 24, turntable; 25, rotating gear; 26, rotating cylinder; 27, rotating shaft; 3, positioning mechanism; 31, positioning seat; 32, dug groove; 33, movable rotating shaft; 34, first limit block; 35, first limit rod; 36, robotic arm; 37, limit hole; 38, positioning block; 39, connecting plate; 4, limit mechanism; 41, second limit block; 42, electric telescopic rod; 43, rotating ring; 44, connecting rod; 45, second limit rod; 5, fixing mechanism; 51, fixing plate; 52, card slot; 53, rotating ball; 54, ejector rod; 55, clamping plate; 56, clamping column. Detailed Embodiment

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0022] The present utility model provides a technical solution: As Figures 1 to 5 shown, in this embodiment, a welding positioning tooling for a crane main beam includes a load-bearing bottom plate 1. A fixed support plate 11 is fixedly connected to the upper end of the load-bearing bottom plate 1, and a limiting support plate 12 is fixedly connected to the upper end of the load-bearing bottom plate 1. The fixed support plate 11 and the limiting support plate 12 are symmetrically arranged about the center of the load-bearing bottom plate 1. A fixed block 13 is fixedly connected to the front surface of the limiting support plate 12. A docking hole is opened at one end of the fixed block 13 away from the limiting support plate 12. A support plate 14 is fixedly connected to the bottom end of the inner wall of the docking hole. An operation plate 15 is fixedly connected to the upper end of the support plate 14. It further includes: a rotating mechanism 2. The rotating mechanism 2 includes a rotating rod 21 rotatably connected to the front surface of the fixed support plate 11. A docking rod 22 is fixedly connected to the end of the rotating rod 21 away from the front surface of the fixed support plate 11. A fixed mechanism 23 is fixedly connected to the surface of the docking rod 22. A turntable 24 is fixedly connected to the end of the fixed mechanism 23 away from the docking rod 22.

[0023] One end of the fixed support plate 11 away from the rotating rod 21 is rotatably connected to a rotating shaft 27. The rotating rod 21 rotatably penetrates through the fixed support plate 11. A rotating shaft 27 is fixedly connected to the end of the rotating rod 21 away from the docking rod 22. The number of the rotating shafts 27 is set to two. The two rotating shafts 27 are symmetrically arranged about the center of the load-bearing bottom plate 1. The rotating shaft 27 rotatably penetrates through the limiting support plate 12. A rotating gear 25 is fixedly connected to the end of the rotating shaft 27 away from the limiting support plate 12. A rotating cylinder 26 is fixedly connected to the end of the rotating gear 25 away from the limiting support plate 12. Since the number of the rotating shafts 27 and the fixed blocks 13 is set to two, rotating the turntable 24 and the rotating cylinder 26 will drive the rotation of the fixed block 13, so that a certain angle can be adjusted, and thus it can be applicable to more welding scenarios of crane main beams.

[0024] A positioning mechanism 3 is provided at the upper end of the operation panel 15. The positioning mechanism 3 includes a positioning seat 31 fixedly connected above the operation panel 15. A groove 32 is formed in the center of the positioning seat 31. One end of the positioning seat 31 away from the operation panel 15 is rotatably connected to a movable rotating shaft 33. A robotic arm 36 is fixedly connected to the front of the movable rotating shaft 33. A first limit block 34 is fixedly connected above the operation panel 15. A first limit rod 35 is fixedly connected to the upper end of the first limit block 34. A limit hole 37 is formed in the side end of the robotic arm 36. A positioning block 38 is fixedly connected to the upper end of the operation panel 15. The positioning block 38 is located directly below the robotic arm 36. A connecting plate 39 is fixedly connected to one end of the robotic arm 36 away from the limit hole 37. With such a setting, since it is necessary to first weld the movable welding tooling to the crane, and the welding positioning tooling is directly placed on the main beam plate for movement during the mobile welding process. When moving or adjusting the welding positioning tooling, by rotating the robotic arm 36, the angle can be made more suitable for the welding work, thereby reducing the result that the movement of the welding tooling is likely to be offset due to external and human factors.

[0025] A limit mechanism 4 is provided at the upper end of the operation panel 15. The limit mechanism 4 includes a second limit block 41 fixedly connected to the upper end of the operation panel 15. An electric telescopic rod 42 is fixedly connected to one end of the second limit block 41 away from the operation panel 15. A rotating ring 43 is rotatably connected to one end of the electric telescopic rod 42 away from the second limit block 41. A connecting rod 44 is fixedly connected to the front of the rotating ring 43. A second limit rod 45 is fixedly connected to one end of the connecting rod 44 away from the rotating ring 43. Through the connecting rod 44, the second limit rod 45 at the top of the connecting rod 44 is clamped with the limit hole 37 formed in the robotic arm 36, thereby ensuring the stability of the entire welding positioning work.

[0026] A fixing mechanism 5 is provided inside the groove 32. The fixing mechanism 5 includes a fixing plate 51 fixedly connected to the inner wall of the groove 32. A clamping groove 52 is formed in the front of the fixing plate 51. A rotating groove is formed at the bottom end of the clamping groove 52. A rotating ball 53 is rotatably connected to the bottom end of the inner wall of the rotating groove. A top rod 54 is fixedly connected to one end of the rotating ball 53 away from the rotating groove. By rotating the robotic arm 36, the movable rotating shaft 33 is driven to rotate, thereby adjusting the height and angle of the welding positioning work. At the same time, since the second limit rod 45 is clamped with the limit hole 37, and by rotating the top rod 54, the top rod 54 completes the limitation of the robotic arm 36, and the positioning function of the crane main beam can be completed.

[0027] The number of the fixing mechanisms 23 is set to several, and several fixing mechanisms 23 are all fixedly connected to the surface of the docking rod 22.

[0028] The inner wall of the robotic arm 36 is fixedly connected with a clamping plate 55, and the upper end of the clamping plate 55 is fixedly connected with a clamping column 56. The number of robotic arms 36 is set to two, and the two robotic arms 36 are symmetrically arranged about the center of the load-bearing bottom plate 1 and are clamped by the clamping plate 55.

[0029] The utility model provides a welding positioning tooling for a crane main beam, and the specific working principle is as follows: When in use, the welding positioning tooling needs to be placed at the position of the crane main beam to complete its fixation. Subsequently, rotate the robotic arm 36 so that the robotic arm 36 drives the movable rotating shaft 33 to rotate. When it rotates to an appropriate angle and height, start the electric telescopic rod 42 above the second limiting block 41, so that the second limiting rod 45 directly in front of the connecting rod 44 can be exactly clamped with the limiting hole 37 opened on the robotic arm 36, thus completing the first step of positioning. After this step is completed, the ejector rod 54 can be rotated again. Since the bottom end of the ejector rod 54 is fixedly connected with the top of the rotating ball 53, and since the rotating ball 53 is rotatably connected to the bottom end of the inner wall of the clamping groove 52, the positioning stability of the robotic arm 36 can be ensured again. And rotating shafts 27 are rotatably connected to one ends of the fixed support plate 11 and the limiting support plate 12 close to the fixed block 13. Thus, when the turntables 24 and the 26 rotating cylinders are rotated respectively, they will drive the two fixed blocks 13 to rotate respectively. Thus, when the welding is completed and rotated, the welding positioning tooling can be protected and repaired, thereby extending the service life of the welding positioning tooling.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A welding positioning tool for a crane main beam, comprising a load-bearing base plate (1), the upper end of the load-bearing base plate (1) is fixedly connected to a fixed support plate (11), the upper end of the load-bearing base plate (1) is fixedly connected to a limit support plate (12), the fixed support plate (11) and the limit support plate (12) are symmetrically arranged about the center of the load-bearing base plate (1), the front side of the limit support plate (12) is fixedly connected to a fixed block (13), the end of the fixed block (13) away from the limit support plate (12) is provided with a docking hole, the bottom end of the inner wall of the docking hole is fixedly connected to a support plate (14), and the upper end of the support plate (14) is fixedly connected to an operating plate (15), characterized in that: Also includes: A rotating mechanism (2), the rotating mechanism (2) comprising a rotating rod (21) rotatably connected to the front face of the fixed support plate (11), the end of the rotating rod (21) away from the front face of the fixed support plate (11) being fixedly connected to a docking rod (22), the surface of the docking rod (22) being fixedly connected to a fixing mechanism (23), and the end of the fixing mechanism (23) away from the docking rod (22) being fixedly connected to a rotating disk (24).

2. A crane main beam welding positioning tool according to claim 1, characterized in that: One end of the fixed support plate (11) away from the rotating rod (21) is rotatably connected to a rotating shaft (27); the rotating rod (21) rotatably penetrates the fixed support plate (11); one end of the rotating rod (21) away from the docking rod (22) is fixedly connected to the rotating shaft (27); the number of the rotating shafts (27) is set to two; the two rotating shafts (27) are symmetrically arranged about the center of the load-bearing base plate (1); the rotating shaft (27) rotatably penetrates the position-limiting support plate (12); one end of the rotating shaft (27) away from the position-limiting support plate (12) is fixedly connected to a rotating gear (25); and one end of the rotating gear (25) away from the position-limiting support plate (12) is fixedly connected to a rotating drum (26).

3. The crane main beam welding positioning tool according to claim 1 is characterized by: A positioning mechanism (3) is provided at the upper end of the operating panel (15), the positioning mechanism (3) comprising a positioning seat (31) fixedly connected to the upper part of the operating panel (15), a groove (32) being provided at the center of the positioning seat (31), an end of the positioning seat (31) away from the operating panel (15) being rotatably connected to a movable shaft (33), a front face of the movable shaft (33) being fixedly connected to a mechanical arm (36), a first limiting block (34) being fixedly connected to the upper part of the operating panel (15), a first limiting rod (35) being fixedly connected to the upper end of the first limiting block (34), a limiting hole (37) being provided at the side end of the mechanical arm (36), a positioning block (38) being fixedly connected to the upper end of the operating panel (15), the positioning block (38) being located directly below the mechanical arm (36), and a connecting plate (39) being fixedly connected to the end of the mechanical arm (36) away from the limiting hole (37).

4. The crane main beam welding positioning tool according to claim 1, characterized in that: A limiting mechanism (4) is provided at the upper end of the operating panel (15), the limiting mechanism (4) comprising a second limiting block (41) fixedly connected to the upper end of the operating panel (15), one end of the second limiting block (41) away from the operating panel (15) being fixedly connected to an electric telescopic rod (42), one end of the electric telescopic rod (42) away from the second limiting block (41) being rotatably connected to a swivel (43), a front face of the swivel (43) being fixedly connected to a connecting rod (44), and one end of the connecting rod (44) away from the swivel (43) being fixedly connected to a second limiting rod (45).

5. The crane main beam welding positioning tool according to claim 3 is characterized by: A fixing mechanism (5) is arranged inside the digging groove (32), and the fixing mechanism (5) comprises a fixing plate (51) fixedly connected to the inner wall of the digging groove (32), a clamping groove (52) is provided on the front side of the fixing plate (51), a rotating groove is provided at the bottom end of the clamping groove (52), a rotating ball (53) is rotatably connected to the bottom end of the inner wall of the rotating groove, and a top rod (54) is fixedly connected to the end of the rotating ball (53) away from the rotating groove.

6. The crane main beam welding positioning tool according to claim 1, characterized in that: The number of the fixing mechanisms (23) is set to be a plurality, and the plurality of fixing mechanisms (23) are all fixedly connected to the surface of the docking rod (22).

7. The crane main beam welding positioning tool according to claim 3 is characterized by: The inner wall of the mechanical arm (36) is fixedly connected to a clamping plate (55), the upper end of the clamping plate (55) is fixedly connected to a clamping column (56), the number of the mechanical arms (36) is set to two, and the two mechanical arms (36) are symmetrically arranged about the center of the load-bearing base plate (1) and are clamped by the clamping plate (55).

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