Assembling and welding device for crane structural parts

Abstract

The utility model provides a crane structural member assembling and welding device, which relates to the technical field of crane structural member welding and comprises a welding table, a support mounted at the top of the welding table, assembling clamps arranged on two sides of the top of the welding table and a welding component arranged at the top of the support. The welding assembly comprises a moving plate, a laser welding machine, a laser welding head and a lifting air cylinder, and the moving plate is arranged on the top of the support. According to the assembling and welding device for the crane structural parts, the welding assembly sprays out high-energy laser beams at the splicing position, the laser beams generate extremely high heat on the surface of the splicing position, materials are rapidly melted, after the materials are melted, the laser beams are rapidly cooled and solidified after being moved away, a welding seam is formed, and then the two crane structural parts are assembled, welded and fixed; and the splicing part of the crane structural part can be quickly turned over through the rotating assembly, the other surface can be conveniently welded, the aim of saving time and labor is achieved, and the welding work efficiency of the crane structural part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane structural member welding, in particular to an assembling and welding device for crane structural members. Background Technique

[0002] The welding of crane structural members is a complex and strictly required process. Since these structural members need to bear heavy loads and ensure the safety and reliability of long-term use, crane structural members usually use high-strength structural steels such as manganese steel and alloy steel. These materials have good mechanical properties and welding properties, and appropriate welding processes need to be selected according to different materials and welding environments, such as manual arc welding, gas shielded welding, submerged arc welding or laser welding, etc. When assembling and welding existing crane structural members, two crane structural members need to be clamped and assembled and butted together through an assembling fixture, and then the assembling parts of the two crane structural members are welded and fixed by a laser welding machine. However, existing assembling fixtures are fixedly installed, and the assembling part is annular. When welding one side of the assembling part of the two crane structural members, the two crane structural members need to be disassembled from the assembling fixture for turning over and welding the other side. However, this way of replacing and turning over is relatively troublesome, resulting in a slow welding speed of crane structural members. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the embodiment of the utility model provides an assembling and welding device for crane structural members, which at least partially solves the above technical problems.

[0004] The technical problems to be solved by the utility model are adopted as follows:

[0005] An assembling and welding device for crane structural members includes: a welding table, a bracket installed on the top of the welding table, assembling fixtures arranged on both sides of the top of the welding table, a welding component arranged on the top of the bracket. The welding component includes: a moving plate, a laser welding machine, a laser welding head and a lifting cylinder. A moving plate is arranged on the top of the bracket. A laser welding machine is installed on one side of the bottom of the moving plate. A laser welding head is installed on one side of the laser welding machine. A lifting cylinder is installed at the top end of the bracket. A rotating component arranged outside the assembling fixture. The rotating component includes: a support plate, an equipment box, a rotating motor and a rotating hole. Support plates are arranged outside the assembling fixtures. An equipment box is installed at the outer end of the support plate. A rotating motor is installed inside the equipment box. A rotating hole is opened between the support plate and the equipment box.

[0006] Preferably, the driving end at the bottom of the lifting cylinder is connected to the moving plate. Moving slots are provided on both sides of the outer end of the bracket. The moving plate is located inside the moving slots. Slide bars are installed at the four corners of the top of the welding table, and sliding cylinders slidably connected to the slide bars are installed at the four corners of the top of the moving plate.

[0007] Preferably, the motor shaft of the rotating motor passes through the rotating hole and is connected to the assembling fixture. A threaded hole is provided at the top of the assembling fixture, and a fixing screw is threadedly connected inside the threaded hole. A clamping block is installed at the bottom end of the fixing screw.

[0008] Preferably, a concave docking block is installed inside the assembling fixture. An installation block adapted to the concave docking block is installed at the motor shaft of the rotating motor, and the installation block and the concave docking block are fixedly connected by bolts.

[0009] Preferably, an adjusting screw is installed at the bottom of the support plate. A limiting ring is provided on the adjusting screw, and a fixing nut is provided at the bottom of the limiting ring. A placing plate is provided inside the bracket. An adjusting groove is provided at the top of the placing plate, and the adjusting screw is located inside the adjusting groove.

[0010] Preferably, a fixing plate is installed on one side of the top of the welding table. An electric push rod is installed inside the fixing plate. An installation plate is installed at one end of the electric push rod. A fixing block is installed on one side of the bottom of the placing plate, and the fixing block and the installation plate are fixedly connected by bolts.

[0011] Preferably, limiting grooves are provided on both sides of the inner wall of the bracket. Limiting blocks slidably connected to the limiting grooves are installed on both sides of the outer end of the placing plate.

[0012] The beneficial effects of the present utility model are as follows:

[0013] High-energy laser beams are sprayed by the welding component of the present utility model at the splicing part. The laser beams generate extremely high heat on the surface of the splicing part, causing the material to melt rapidly. After the material melts, it quickly cools and solidifies after the laser beam moves away, forming a weld seam, thereby assembling, welding and fixing two crane structural members.

[0014] Through the rotating component of the present utility model, the splicing part of the crane structural member can be quickly turned over, which is convenient for welding the other side, achieving the purpose of saving time and effort, solving the problem that it is relatively troublesome to disassemble, replace and turn over the existing crane structural members, and improving the welding work efficiency of the crane structural members. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2This is the overall sectional view of the present utility model.

[0017] Figure 3 This is the sectional view of the assembly fixture of the present utility model.

[0018] Figure 4 This is the structural schematic diagram of the assembly fixture of the present utility model.

[0019] Figure 5 This is the structural schematic diagram of the electric push rod of the present utility model.

[0020] Figures 1 - 5 In the figure: 1. Welding table; 101. Bracket; 102. Assembly fixture; 103. Moving plate; 104. Laser welding machine; 105. Laser welding head; 106. Lifting cylinder; 107. Moving notch; 108. Slide bar; 109. Slide cylinder; 2. Support plate; 201. Equipment box; 202. Rotary motor; 203. Rotating hole; 3. Fixed screw; 301. Clamping block; 302. Concave docking block; 303. Installation block; 4. Adjusting screw; 401. Limiting ring; 402. Fixed nut; 5. Placing plate; 501. Adjusting groove; 6. Fixed plate; 601. Electric push rod; 602. Installation plate; 7. Fixed block; 8. Limiting groove; 9. Limiting block. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0022] The embodiment of the present utility model provides a crane structural member assembly and welding device. This kind of crane structural member assembly and welding device can realize spraying a high-energy laser beam at the splicing part through a welding component. The laser beam generates extremely high heat on the surface of the splicing part, causing the material to melt rapidly. After the material melts, it quickly cools and solidifies after the laser beam moves away, forming a weld seam, thereby assembling and welding two crane structural members together and fixing them. And through a rotating component, the splicing part of the crane structural member can be quickly turned over, which is convenient for welding the other side, achieving the purpose of saving time and effort, solving the problem that it is relatively troublesome to disassemble, replace, and turn over existing crane structural members, and improving the welding work efficiency of crane structural members.

[0023] Next, the present application will be described in detail in conjunction with the accompanying drawings and specific implementation manners. Embodiment

[0024] As Figures 1 - 5As shown in the figure, a device for assembling and welding crane structural parts, a welding table 1, a bracket 101 installed on the top of the welding table 1, assembling jigs 102 arranged on both sides of the top of the welding table 1, and a welding assembly arranged on the top of the bracket 101. The welding assembly includes: a moving plate 103, a laser welding machine 104, a laser welding head 105, and a lifting cylinder 106. There is a moving plate 103 on the top of the bracket 101. A laser welding machine 104 is installed on one side of the bottom of the moving plate 103. A laser welding head 105 is installed on one side of the laser welding machine 104. A lifting cylinder 106 is installed at the top of the bracket 101. A rotating assembly arranged outside the assembling jig 102. The rotating assembly includes: a support plate 2, an equipment box 201, a rotating motor 202, and a rotating hole 203. Support plates 2 are arranged outside the assembling jigs 102. An equipment box 201 is installed at the outer end of the support plate 2. A rotating motor 202 is installed inside the equipment box 201. A rotating hole 203 is opened between the support plate 2 and the equipment box 201.

[0025] Among them, the motor shaft of the rotating motor 202 passes through the rotating hole 203 and is connected to the assembling jig 102. A threaded hole is opened at the top of the assembling jig 102. A fixing screw 3 is threadedly connected inside the threaded hole. A clamping block 301 is installed at the bottom end of the fixing screw 3. When assembling and welding the crane structural parts, the crane structural parts are placed inside the assembling jig 102. The fixing screw 3 is rotated to threadedly rotate inside the threaded hole, driving the clamping block 301 to move towards the crane structural parts, and then clamping and fixing the crane structural parts inside the assembling jig 102, so that the crane structural parts are stably placed.

[0026] Among them, an adjusting screw 4 is installed at the bottom of the support plate 2. A limiting ring 401 is arranged on the adjusting screw 4. A fixing nut 402 is arranged at the bottom of the limiting ring 401. A placing plate 5 is arranged inside the bracket 101. An adjusting groove 501 is opened at the top of the placing plate 5, and the adjusting screw 4 is located inside the adjusting groove 501. The adjusting screw 4 at the bottom of the support plate 2 is placed inside the adjusting groove 501, so that the support plate 2 is placed on the placing plate 5, while the limiting ring 401 and the fixing nut 402 on the adjusting screw 4 are located at the bottom of the adjusting groove 501. The sizes of the limiting ring 401 and the fixing nut 402 are larger than the adjusting groove 501. By moving and adjusting the distance between the support plates 2, the distance between the crane structural parts inside the assembling jig 102 can be adjusted. Align the splicing part between the two crane structural parts with the laser welding head 105. Then, rotate and tighten the fixing nut 402 to be close to the bottom of the placing plate 5, so that the limiting ring 401 and the fixing nut 402 are closely attached to the bottom of the adjusting groove 501, avoiding movement during welding of the splicing part between the two crane structural parts.

[0027] Among them, the driving end at the bottom of the lifting cylinder 106 is connected to the moving plate 103. Both sides of the outer end of the bracket 101 are provided with moving notches 107. The moving plate 103 is located inside the moving notches 107. Four corners of the top of the welding table 1 are installed with sliding rods 108. Four corners of the top of the moving plate 103 are installed with sliding cylinders 109 that are slidably connected to the sliding rods 108. After assembling and fixing two crane structural members, the splicing part is aligned with the laser welding head 105. At this time, start the lifting cylinder 106 to drive the moving plate 103 to move downward inside the moving notch 107, drive the laser welding machine 104 and the laser welding head 105 to move downward, so that the laser welding head 105 approaches the splicing part of the two crane structural members, and start the laser welding machine 104 to work. A high-energy laser beam is ejected at the laser welding head 105 at the splicing part. The laser beam generates extremely high heat on the surface of the splicing part, causing the material to melt rapidly. After the material melts, it quickly cools and solidifies after the laser beam moves away, forming a weld seam, thereby assembling, welding and fixing the two crane structural members.

[0028] Among them, one side of the top of the welding table 1 is installed with a fixing plate 6. The inner side of the fixing plate 6 is installed with an electric push rod 601. One end of the electric push rod 601 is installed with a mounting plate 602. One side of the bottom of the placing plate 5 is installed with a fixing block 7, and the fixing block 7 and the mounting plate 602 are fixedly connected by bolts. During the welding process of the splicing part, start the electric push rod 601 to push the fixing block 7 at the bottom of the placing plate 5 to move back and forth, and then the support plate 2, the assembling fixture 102 and the crane structural member can be driven to move back and forth, which is convenient for welding different positions of the splicing part.

[0029] When one side of the splicing part is welded, start two rotating motors 202 at the same time to drive the motor shafts to rotate inside the rotating holes 203. The motor shafts drive the assembling fixture 102 and the crane structural member to rotate, which can quickly turn over the splicing part of the crane structural member, facilitating the welding treatment of the other side, achieving the purpose of saving time and effort, solving the problem that it is relatively troublesome to disassemble, replace and turn over the existing crane structural members, and improving the welding work efficiency of the crane structural members.

[0030] Among them, a control chassis is fixedly installed on one side of the outer end of the welding table 1. A plurality of control buttons are installed on the outer side of the control chassis, and a power cord is installed on the back of the control chassis. The laser welding machine 104, the lifting cylinder 106, the rotating motor 202 and the electric push rod 601 are connected to the control chassis through wires. The length of the power cord is 3 meters, and a plug is installed at the other end of the power cord. The plug can be inserted into a socket in the room to connect to the power supply, so that the control chassis, the laser welding machine 104, the lifting cylinder 106, the rotating motor 202 and the electric push rod 601 are normally powered on and used. The laser welding machine 104, the lifting cylinder 106, the rotating motor 202 and the electric push rod 601 can be controlled to start and stop through the control chassis. And for the control program involved in the present utility model, those skilled in the art can all be realized according to the same or similar principles in the prior art. This part is not the innovation of the present utility model.

[0031] Among them, limiting grooves 8 are opened on both sides of the inner wall of the bracket 101. Limiting blocks 9 slidably connected to the limiting grooves 8 are installed on both sides of the outer end of the placing plate 5. When the electric push rod 601 pushes the fixing block 7 at the bottom of the placing plate 5 to move back and forth, the limiting blocks 9 on both sides of the outer end of the placing plate 5 slide inside the limiting grooves 8, so that the placing plate 5 moves on the same horizontal line, ensuring that the splicing part is aligned and flush with the laser welding head 105, improving the welding quality. When adjusting and moving the support plate 2, the placing plate 5 can also be pushed to move closer to the worker, facilitating the worker to loosen, adjust or tighten the fixing nut 402 on the adjusting screw 4.

[0032] Among them, a concave docking block 302 is installed inside the assembly fixture 102. An installation block 303 adapted to the concave docking block 302 is installed at the motor shaft of the rotating motor 202, and the installation block 303 and the concave docking block 302 are fixedly connected by bolts. When welding the crane structural parts, due to the different shapes and sizes of the crane structural parts, the assembly fixture 102 and the motor shaft of the rotating motor 202 can be disassembled, replaced or installed through the settings of the concave docking block 302 and the installation block 303, facilitating the replacement of different types of assembly fixtures 102 for clamping and fixing crane structural parts with different shapes and sizes.

[0033] Working principle:

[0034] When assembling and welding the crane structural members, place the crane structural members inside the assembly fixture 102. Rotate the fixing screw 3 to threadedly rotate inside the screw hole, driving the clamping block 301 to move towards the crane structural members, thereby clamping and fixing the crane structural members inside the assembly fixture 102. Place the adjusting screw 4 at the bottom of the support plate 2 inside the adjusting groove 501, so that the support plate 2 is placed on the placement plate 5. The limiting ring 401 and the fixing nut 402 on the adjusting screw 4 are located at the bottom of the adjusting groove 501. The sizes of the limiting ring 401 and the fixing nut 402 are larger than the adjusting groove 501. Move the distance between the adjusting support plates 2, and then the spacing between the crane structural members inside the assembly fixture 102 can be adjusted. Align the splicing part between the two crane structural members with the laser welding head 105. At this time, start the lifting cylinder 106 to drive the moving plate 103 to move downward inside the moving notch 107, driving the laser welding machine 104 and the laser welding head 105 to move downward, so that the laser welding head 105 approaches the splicing part of the two crane structural members, and start the laser welding machine 104 to work. A high-energy laser beam is ejected from the laser welding head 105 at the splicing part. The laser beam generates extremely high heat on the surface of the splicing part, causing the material to melt rapidly. After the material melts, it quickly cools and solidifies after the laser beam moves away, forming a weld seam, thereby fixing the two crane structural members by assembling and welding.

[0035] During the welding process of the splicing part, start the electric push rod 601 to push the fixed block 7 at the bottom of the placement plate 5 to move back and forth, and then the support plate 2, the assembly fixture 102 and the crane structural members can be driven to move back and forth, which is convenient for welding different positions of the splicing part. When one side of the assembly part is welded, start two rotating motors 202 at the same time to drive the motor shaft to rotate inside the rotating hole 203. The motor shaft drives the assembly fixture 102 and the crane structural members to rotate, which can quickly turn over the splicing part of the crane structural members, facilitating the welding treatment of the other side, achieving the purpose of saving time and effort.

[0036] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0037] The above has introduced in detail a device for assembling and welding crane structural members provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application. Those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A crane structural parts assembly welding device, characterized in that: include: Welding table (1); A bracket (101) mounted on the top of the welding table (1); Assembling fixtures (102) arranged on both sides of the top of the welding platform (1); A welding assembly arranged on the top of the support (101), the welding assembly comprising: a moving plate (103), a laser welding machine (104), a laser welding head (105) and a lifting cylinder (106); the moving plate (103) is arranged on the top of the support (101); the laser welding machine (104) is installed on one side of the bottom of the moving plate (103); the laser welding head (105) is installed on one side of the laser welding machine (104); and the lifting cylinder (106) is installed on the top of the support (101); A rotating assembly is arranged outside the assembling fixture (102), the rotating assembly comprising: a support plate (2), a device box (201), a rotating motor (202) and a rotating hole (203); a support plate (2) is arranged outside the assembling fixture (102); a device box (201) is installed at the outer end of the support plate (2); a rotating motor (202) is installed inside the device box (201); and a rotating hole (203) is provided between the support plate (2) and the device box (201).

2. The crane structural component assembly and welding device according to claim 1, characterized in that: The driving end at the bottom of the lifting cylinder (106) is connected to the movable plate (103), and movable slots (107) are provided on both sides of the outer end of the bracket (101). The movable plate (103) is located inside the movable slots (107). Sliding rods (108) are installed at the four corners of the top of the welding table (1), and sliding cylinders (109) slidably connected to the sliding rods (108) are installed at the four corners of the top of the movable plate (103).

3. The crane structural component assembly and welding device according to claim 1, characterized in that: The motor shaft of the rotating motor (202) passes through the rotating hole (203) and is connected to the assembling fixture (102). A screw hole is provided at the top of the assembling fixture (102). A fixing screw rod (3) is threadedly connected inside the screw hole. A clamping block (301) is installed at the bottom end of the fixing screw rod (3).

4. The crane structural component assembly and welding device according to claim 3 is characterized in that: A concave docking block (302) is installed inside the assembly fixture (102), a mounting block (303) adapted to the concave docking block (302) is installed at the motor shaft of the rotating motor (202), and the mounting block (303) is fixedly connected to the concave docking block (302) by bolts.

5. The crane structural component assembly and welding device according to claim 1, characterized in that: An adjusting screw (4) is installed at the bottom of the support plate (2), a limiting ring (401) is provided on the adjusting screw (4), a fixing nut (402) is provided at the bottom of the limiting ring (401), a placement plate (5) is provided inside the bracket (101), an adjusting groove (501) is provided at the top of the placement plate (5), and the adjusting screw (4) is located inside the adjusting groove (501).

6. The crane structural component assembly and welding device according to claim 5, characterized in that: A fixing plate (6) is installed on one side of the top of the welding table (1), an electric push rod (601) is installed on the inner side of the fixing plate (6), a mounting plate (602) is installed on one end of the electric push rod (601), a fixing block (7) is installed on one side of the bottom of the placement plate (5), and the fixing block (7) is fixedly connected to the mounting plate (602) by bolts.

7. The crane structural component assembly and welding device according to claim 5, characterized in that: Limiting grooves (8) are provided on both sides of the inner wall of the bracket (101), and limiting blocks (9) slidably connected to the limiting grooves (8) are installed on both sides of the outer end of the placement plate (5).

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