Automatic welding work platform for steel structure

Abstract

The application provides a steel structure automatic welding work platform, and relates to the technical field of welding platforms, which comprises the following steps: two longitudinal support rail shafts are symmetrically welded at the middle position of one long side of the horizontal workbench; a U-shaped driving frame is jointly and slidably installed on the two longitudinal support rail shafts; a longitudinal threaded shaft is rotationally installed at the top end of the horizontal workbench between the two longitudinal support rail shafts; the longitudinal threaded shaft is in penetrating and screwing cooperation with the middle part of the transverse support side rod of the U-shaped driving frame; the first ends of the two longitudinal support side rods of the U-shaped driving frame are jointly and rotationally installed with a rotating rod; four swing rods are symmetrically welded on the rotating rod; and the first ends of the four swing rods are rotationally connected with four connecting short shafts. The application can save the trouble of step-by-step opening and closing of all semicircular clamping sleeves, is easy to operate and use, and is helpful to indirectly improving the disassembly and assembly efficiency of the steel structure pipe fittings in the semicircular supporting sleeves compared with the prior art.

Description

Technical Field

[0001] This invention relates to the field of welding platform technology, and in particular to an automatic welding platform for steel structures. Background Technology

[0002] In the welding and manufacturing process of steel structures, it is necessary to extend some long pipes by welding them end to end. Specialized welding work platforms are required to meet these welding needs.

[0003] Existing welding platforms are mostly equipped with multiple (groups) of mechanisms to enclose and limit the pipe fittings to be welded, allowing the pipe fittings to rotate and perform circumferential welding. However, these limiting mechanisms are mostly set up independently, and the opening and closing mechanisms on them often lack a mechanism to transmit synchronous driving force. This means that when loosening or disassembling the pipe fittings, all the limiting mechanisms need to be opened and closed one by one in stages, which is cumbersome and inconvenient to operate, indirectly reducing the efficiency of pipe fitting disassembly and assembly. Summary of the Invention

[0004] In view of this, the present invention provides an automatic welding platform for steel structures to solve the problem that when loosening and unleasing pipe fittings, it is necessary to open and close all the limiting mechanisms one by one in stages, which is cumbersome and inconvenient to operate and indirectly reduces the efficiency of pipe fitting assembly and disassembly.

[0005] The technical solution proposed in this invention is: an automatic steel structure welding work platform, specifically including: a horizontal worktable, wherein four semi-circular support sleeves are symmetrically welded at the middle position of the top of the horizontal worktable, and the two steel pipe fittings to be welded are placed end to end in the two semi-circular support sleeves on each side respectively.

[0006] Each of the four semicircular support sleeves is rotatably connected to a semicircular retaining sleeve. When the four semicircular retaining sleeves are closed by rotation, they together with the four semicircular support sleeves to form four complete limiting sleeves. Two L-shaped support rods are symmetrically welded to the tail ends of the four semicircular retaining sleeves. Rotating shaft sleeves are welded to the tail ends of the two L-shaped support rods. A connecting short shaft is welded between the bends of the two L-shaped support rods. A U-shaped connector is welded to the tail end of each of the four semicircular support sleeves. The four rotating shaft sleeves are rotatably engaged with the four U-shaped connectors.

[0007] Two longitudinal support rails are symmetrically welded to the middle of one long side of the horizontal worktable, and a U-shaped drive frame is slidably mounted on both longitudinal support rails. A longitudinal threaded shaft is rotatably mounted on the top of the horizontal worktable between the two longitudinal support rails, and the longitudinal threaded shaft is screwed into the middle part of the cross support side rod of the U-shaped drive frame. A rotating rod is rotatably mounted on the first end of the two longitudinal support side rods of the U-shaped drive frame, and four swing rods are symmetrically welded on the swing rod. The first end of the four swing rods is rotatably connected to four short connecting shafts.

[0008] Furthermore, two strip-shaped rectangular auxiliary support plates are symmetrically welded to the two short sides of the horizontal worktable. Two semi-circular support sleeves are welded at intervals to the top of each of the two auxiliary support plates. The semi-circular support sleeves on the auxiliary support plates are used to support the part of the steel pipe fitting to be welded that is away from the horizontal worktable.

[0009] Furthermore, two vertical support blocks are symmetrically welded to the top of the horizontal worktable near the two semi-circular support sleeves in the middle, and a drive shaft is rotatably installed through the top of the two vertical support blocks.

[0010] Furthermore, two rubber drive wheels are symmetrically fitted at both ends of the drive shaft, and the two rubber drive wheels are in contact with the two steel pipe fittings to be welded.

[0011] Furthermore, a motor is threadedly fastened to the main body of one of the vertical support blocks, a gear is fitted at the beginning of the motor shaft, and a gear is fitted on the part of the drive shaft near the motor, with the two gears meshing for transmission.

[0012] Furthermore, two vertical support plates are symmetrically welded to the middle position of the other long side of the horizontal workbench. A lifting rod is rotatably installed between the top ends of the two vertical support plates. A MIG welding gun is inserted through the lifting rod and fastened with bolts. The MIG welding gun is connected to an external wire feeding mechanism and gas supply system through a wire guide hose, and the MIG welding gun is electrically connected to the welding host through a welding cable.

[0013] Furthermore, a slidable insert shaft is installed on one long side of the lifting rod by a spring push, and a positioning wheel is welded to the top of the vertical support plate located on the side of the insert shaft. Two insertion holes are spaced apart on the outer circumference of the positioning wheel, and the first end of the insert shaft is inserted into the insertion hole.

[0014] The tail end of the shaft protrudes from the head end of the boom and extends away from the boom.

[0015] Furthermore, two ground support frames are symmetrically welded to the bottom of the horizontal workbench. An electrical control box is installed on one of the ground support frames. Inside the electrical control box is a contactor that controls the wire feeding mechanism, the gas supply system, the welding host, and the motor to start and stop together. The electrical control box is also equipped with a time controller, which is electrically connected to the contactor.

[0016] The automatic welding platform for steel structures provided by this invention has the following beneficial effects:

[0017] In this invention, the U-shaped drive frame, rotating rod, four swing rods, and four semi-circular sleeves are connected together to form a four-fold adaptable crank-slider mechanism. Through this four-fold mechanism, the U-shaped drive frame can slide back and forth to push and drive all four semi-circular sleeves to swing up and down synchronously to open and close, thereby loosening and disassembling the two steel pipe fittings. This eliminates the trouble of opening and closing all the semi-circular sleeves one by one in stages, making the operation simpler. Compared with the prior art, it helps to indirectly improve the efficiency of disassembly and assembly of steel pipe fittings in the semi-circular sleeves.

[0018] In addition, the lifting boom is installed by rotation. When idle or when disassembling and assembling steel pipe components, it can drive the MIG welding gun to swing upward and tilt to a free position, avoiding obstruction and interference to the disassembly and assembly of steel pipe components, and facilitating the disassembly and assembly of steel pipe components in the semi-circular support sleeve.

[0019] Furthermore, the insertion shaft can be selected and matched with two insertion holes to position the boom in both tilted and horizontal welding positions. The insertion shaft is directly integrated and installed on the boom, allowing for swing drive of the boom. This makes it convenient to operate and use the boom by simultaneously inserting and pulling the insertion shaft to adjust the boom's tension while adjusting its up and down swing. There is no need to move your hands to perform the additional insertion and pulling of the insertion shaft.

[0020] In addition, the insert shaft protrudes from the front end of the lifting rod and extends forward to support it, close to the staff standing in front of the horizontal workbench to operate the entire workbench. This makes it convenient for staff to directly grasp and operate the insert shaft, saving them the trouble of having to walk around to the back of the horizontal workbench to get close to it and operate it. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0023] In the attached diagram:

[0024] Figure 1 A schematic diagram of the overall front structure of the present invention is shown;

[0025] Figure 2 A schematic diagram of the overall rear structure of the present invention is shown;

[0026] Figure 3 A schematic diagram of the auxiliary support plate structure of the present invention is shown;

[0027] Figure 4 A schematic diagram of the top structure of the horizontal worktable of the present invention is shown;

[0028] Figure 5 A schematic diagram of the semi-circular ferrule structure of the present invention is shown;

[0029] Figure 6 A schematic diagram of the lifting boom structure of the present invention is shown;

[0030] Figure 7 A schematic diagram of the disassembled boom of the present invention is shown;

[0031] Figure 8 A schematic diagram of the bottom structure of the boom of the present invention is shown;

[0032] List of reference numerals

[0033] 1. Horizontal worktable; 101. Auxiliary support plate; 102. Semi-circular support sleeve; 1021. U-shaped connector; 103. Vertical support block; 104. Longitudinal support track shaft; 105. Longitudinal threaded shaft; 106. Vertical support plate; 1061. Positioning wheel;

[0034] 2. Semi-circular ferrule; 201. L-shaped support rod;

[0035] 3. U-shaped drive frame; 301. Rotary rod; 302. Swing rod;

[0036] 4. Electrical control box;

[0037] 5. Drive shaft; 501. Rubber drive wheel;

[0038] 6. Lifting boom; 601. Insert shaft;

[0039] 7. MIG / MAG welding torch;

[0040] 8. Motor. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the described embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] For ease of explanation, the length direction of the horizontal worktable 1 is marked as the left-right direction, and the width direction is marked as the front-back direction.

[0043] Please refer to Figures 1 to 8 Example 1:

[0044] This invention proposes an automatic steel structure welding platform, comprising: a horizontal workbench 1, an auxiliary support plate 101, a semi-circular support sleeve 102, a U-shaped connector 1021, a vertical support block 103, a longitudinal support track shaft 104, a longitudinal threaded shaft 105, a vertical support plate 106, a positioning wheel 1061, a semi-circular clamp 2, an L-shaped support rod 201, a U-shaped drive frame 3, a rotating rod 301, a swing rod 302, an electrical control box 4, a drive shaft 5, a rubber drive wheel 501, a lifting rod 6, a plug shaft 601, a MIG welding torch 7, and a motor 8. Four semi-circular support sleeves 102 are symmetrically welded at the top center of the horizontal workbench 1. The two steel pipe fittings to be welded are placed end to end in the two semi-circular support sleeves 102 on each side respectively.

[0045] Among them, four semi-circular support sleeves 102 are rotatably connected to semi-circular clamp sleeves 2. When the four semi-circular clamp sleeves 2 are rotated and closed, they together with the four semi-circular support sleeves 102 to form four complete limiting sleeves. The four complete limiting sleeves can surround and limit the two steel pipe components to ensure that the two steel pipe components can be rotated and driven to perform circumferential welding on the annular weld formed between them. When the two steel pipe components are rotated, they rotate inside the four limiting sleeves. Two L-shaped support rods 201 are symmetrically welded to the tail end of the four semi-circular clamp sleeves 2. The tail end of the two L-shaped support rods 201 is welded with a rotating shaft sleeve. A connecting short shaft is welded between the bends of the two L-shaped support rods 201. A U-shaped connector 1021 is welded to the tail end of each of the four semi-circular support sleeves 102. The four rotating shaft sleeves are rotatably engaged with the four U-shaped connectors 1021.

[0046] Two longitudinal support rail shafts 104 are symmetrically welded to the middle of one long side of the horizontal worktable 1. A U-shaped drive frame 3 is slidably mounted on both longitudinal support rail shafts 104. A longitudinal threaded shaft 105 is rotatably mounted between the two longitudinal support rail shafts 104 at the top of the horizontal worktable 1. The longitudinal threaded shaft 105 is screwed through and screwed into the middle part of the cross support side rod of the U-shaped drive frame 3. A rotating rod 301 is rotatably mounted through the first ends of the two longitudinal support side rods of the U-shaped drive frame 3. Four swing rods 302 are symmetrically welded on the swing rod 301. The first ends of the four swing rods 302 are rotatably connected to four short connecting shafts.

[0047] The U-shaped drive frame 3, the rotating rod 301, the four swing rods 302 and the four semi-circular sleeves 2 are connected together to form a four-fold adaptable crank-slider mechanism. Through this four-fold mechanism, the U-shaped drive frame 3 can push and drive all four semi-circular sleeves 2 to swing up and down synchronously to open and close, so as to loosen and assemble the two steel pipe fittings. This can save the trouble of opening and closing all the semi-circular sleeves 2 one by one in stages. The operation is simpler. Compared with the existing technology, it helps to indirectly improve the efficiency of disassembly and assembly of steel pipe fittings in the semi-circular sleeve 102.

[0048] The longitudinal threaded shaft 105 can rotate in both directions to drive the U-shaped drive frame 3 to slide back and forth, providing the driving force for the swing opening and closing of all the semi-circular ferrules 2.

[0049] Preferably, two strip-shaped rectangular auxiliary support plates 101 are symmetrically welded to the two short sides of the horizontal workbench 1. Two semi-circular sleeves 102 are welded at the top of each of the two auxiliary support plates 101 at intervals. The semi-circular sleeves 102 on the auxiliary support plates 101 are used to support and place the part of the steel pipe fitting to be welded that is away from the horizontal workbench 1.

[0050] Preferably, two vertical support blocks 103 are symmetrically welded at the top of the horizontal workbench 1 near the two semi-circular support sleeves 102 in the middle. The top of the two vertical support blocks 103 are connected to a drive shaft 5 for rotation. Two rubber drive wheels 501 are symmetrically fitted at both ends of the drive shaft 5. The two rubber drive wheels 501 are in contact with the two steel pipe fittings to be welded. A motor 8 is threadedly fastened to the main body of one vertical support block 103. A gear is fitted at the first end of the shaft of the motor 8, and a gear is fitted on the part of the drive shaft 5 near the motor 8. The two gears mesh and transmit power.

[0051] Through two gears, the motor 8 can rotate to drive the drive shaft 5, and through two rubber drive wheels 501, the drive shaft 5 can rotate to drive two steel pipe components.

[0052] Preferably, two vertical support plates 106 are symmetrically welded to the middle position of the other long side of the horizontal workbench 1. A lifting rod 6 is rotatably installed between the top ends of the two vertical support plates 106. A MIG welding gun 7 is inserted through the head end of the lifting rod 6 and fastened with bolts. The MIG welding gun 7 is connected to an external wire feeding mechanism and gas supply system through a wire guide hose, and the MIG welding gun 7 is electrically connected to the welding host through a welding cable.

[0053] The lifting boom 6 is rotatably installed. In its idle state or when disassembling or assembling steel pipe components, it can drive the MIG welding torch 7 to swing upwards and tilt into a neutral position, avoiding obstruction or interference during the disassembly and assembly of the steel pipe components. This facilitates the disassembly and assembly of the steel pipe components within the semi-circular support 102. Furthermore, during welding, the lifting boom 6 can swing downwards horizontally, driving the MIG welding torch 7 to a position close to the butt weld between the two steel pipe components (see reference). Figure 4 ), to perform welding on steel pipe components.

[0054] Preferably, a shaft 601 is slidably mounted on one long side of the boom 6 by a spring push, and a positioning wheel 1061 is welded to the top of the vertical support plate 106 located on the side of the shaft 601. The outer circumference of the positioning wheel 1061 is provided with two insertion holes spaced apart, and the first end of the shaft 601 is inserted into the insertion hole; the tail end of the shaft 601 protrudes from the first end of the boom 6 and extends in a direction away from the boom 6.

[0055] The insertion shaft 601 can be selected to be plugged into two holes to position the lifting boom 6 in an inclined empty position and a horizontal welding state. The insertion shaft 601 is directly integrated and installed on the lifting boom 6. It can be used to drive the lifting boom 6 to swing. This makes it convenient to operate and use, without the trouble of moving the hands to manually insert and remove the insertion shaft 601.

[0056] In addition, the insert shaft 601 protrudes from the front end of the lifting rod 6 and extends forward to support it, close to the staff standing in front of the horizontal workbench 1 to operate the entire workbench. This makes it convenient for staff to directly grasp and operate it manually, saving them the trouble of having to walk around to the back of the horizontal workbench 1 to get close to and operate the insert shaft 601.

[0057] Based on Example 1, Example 2: Two ground support frames are symmetrically welded to the bottom of the horizontal workbench 1. An electrical control box 4 is installed on one of the ground support frames. The electrical control box 4 contains a contactor that controls the wire feeding mechanism, the gas supply system, the welding host, and the motor 8 to start and stop together. The electrical control box 4 also contains a time controller, which is electrically connected to the contactor. Ground support frames are welded to the bottom of the tail ends of the two auxiliary support plates 101.

[0058] The time controller is used to automatically shut down the wire feeding mechanism, air supply system, welding host and motor 8 after they have been running for a period of time. The waiting time set by the time controller should be the time required for motor 8 and drive shaft 5 to drive the two steel pipe components and the circumferential weld between them to rotate one revolution. The time controller and contactor body and the wiring between them are existing technologies for personnel engaged in the installation, design, commissioning, maintenance and technical transformation of equipment automation systems in this field, and there are mature corresponding solutions on the market. Manufacturers can use them after simple debugging after purchase, so they will not be described in detail here.

[0059] Working principle: When in use, place the two steel pipe fittings to be welded end to end in the two semi-circular support sleeves 102 on each side. Then manually start the wire feeding mechanism, air supply system, electric welding host and motor 8. Through two gears, the motor 8 can rotate to drive the drive shaft 5. Through two rubber drive wheels 501, the drive shaft 5 can rotate to drive the two steel pipe fittings. When the two steel pipe fittings are rotated, the annular weld seam formed by their joint rotates relative to the MIG welding torch 7. The MIG welding torch 7 can complete the circumference welding of the annular weld seam by following the continuous rotation of the annular weld seam. When the two steel pipe fittings have rotated a full circle, the waiting time set by the time controller is reached. The time controller is triggered to automatically shut down the wire feeding mechanism, air supply system, electric welding host and motor 8, thus completing one welding of the steel pipe fittings.

[0060] In use, the operator stands in front of the horizontal workbench 1 and operates the entire workbench. When the two steel pipe components are rotated, they rotate inside the four limiting sleeves. The U-shaped drive frame 3, the rotating rod 301, the four swing rods 302 and the four semi-circular sleeves 2 are connected to form four crank-slider mechanisms that adapt to deformation. Through these four mechanisms, the U-shaped drive frame 3 can push and drive all four semi-circular sleeves 2 to swing up and down synchronously to open and close, and to loosen and disassemble the two steel pipe components. The longitudinal threaded shaft 105 can rotate forward and backward to drive the U-shaped drive frame 3 to slide forward and backward, providing the driving force for the swing opening and closing of all semi-circular sleeves 2.

[0061] The lifting boom 6 is rotatably installed. In its idle state or when disassembling or assembling steel pipe components, it can drive the MIG welding torch 7 to swing upwards and tilt into a neutral position, avoiding obstruction or interference during the disassembly and assembly of the steel pipe components. This facilitates the disassembly and assembly of the steel pipe components within the semi-circular support 102. Furthermore, during welding, the lifting boom 6 can swing downwards horizontally, driving the MIG welding torch 7 to a position close to the butt weld between the two steel pipe components (see reference). Figure 4 The insertion shaft 601 is selected to be inserted into two insertion holes to position the lifting rod 6 in an inclined empty position and a horizontal welding state. The insertion shaft 601 is directly integrated and installed on the lifting rod 6, through which the lifting rod 6 can be driven to swing.

[0062] The following points should be noted in this article:

[0063] 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0064] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0065] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those 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 determined by the scope of the claims.

Claims

1. An automatic welding platform for steel structures, comprising: A horizontal workbench (1) has four semi-circular support sleeves (102) symmetrically welded at the top center of the horizontal workbench (1). The two steel pipe fittings to be welded are placed end to end in the two semi-circular support sleeves (102) on each side. The feature is that a semi-circular sleeve (2) is rotatably connected to each of the four semi-circular sleeves (102). When the four semi-circular sleeves (2) are closed by rotation, they are connected with the four semi-circular sleeves (102) to form four complete limiting sleeves. Two L-shaped support rods (201) are symmetrically welded to the tail end of each of the four semi-circular sleeves (2). A rotating shaft sleeve is welded to the tail end of each of the two L-shaped support rods (201). A connecting short shaft is welded between the bends of the two L-shaped support rods (201). A U-shaped connector (1021) is welded to the tail end of each of the four semi-circular sleeves (102). The four rotating shaft sleeves are rotatably engaged with the four U-shaped connectors (1021). Two longitudinal support rail shafts (104) are symmetrically welded to the middle of one long side of the horizontal worktable (1), and a U-shaped drive frame (3) is slidably installed on the two longitudinal support rail shafts (104); a longitudinal threaded shaft (105) is rotatably installed between the two longitudinal support rail shafts (104) at the top of the horizontal worktable (1), and the longitudinal threaded shaft (105) is screwed through and screwed into the middle part of the cross support side rod of the U-shaped drive frame (3); a rotating rod (301) is rotatably installed through the first end of the two longitudinal support side rods of the U-shaped drive frame (3), and four swing rods (302) are symmetrically welded on the swing rod (301), and the first end of the four swing rods (302) is rotatably connected to the four connecting short shafts. The horizontal workbench (1) has two strip-shaped rectangular auxiliary support plates (101) symmetrically welded on its two short sides. The top of each of the two auxiliary support plates (101) has two semi-circular sleeves (102) welded at intervals. The semi-circular sleeves (102) on the auxiliary support plates (101) are used to support the part of the steel pipe fitting to be welded that is far away from the horizontal workbench (1). Two vertical support blocks (103) are symmetrically welded at the top of the horizontal worktable (1) near the two semi-circular support sleeves (102) in the middle. The top of the two vertical support blocks (103) are connected to a drive shaft (5) for rotation. The two ends of the drive shaft (5) are symmetrically fitted with two rubber drive wheels (501), and the two rubber drive wheels (501) are in contact with the two steel pipe fittings to be welded. A motor (8) is threadedly fastened to the main body of one of the vertical support blocks (103). A gear is fitted at the beginning of the motor (8) shaft, and a gear is fitted on the part of the drive shaft (5) near the motor (8). The two gears mesh and transmit power. Two vertical support plates (106) are symmetrically welded to the middle of the other long side of the horizontal workbench (1). A lifting rod (6) is rotatably installed between the tops of the two vertical support plates (106). A MIG welding gun (7) is inserted through the head of the lifting rod (6) and fastened with bolts. The MIG welding gun (7) is connected to the external wire feeding mechanism and gas supply system through the wire guide hose. The MIG welding gun (7) is electrically connected to the welding host through the welding cable. The lifting rod (6) has a spring-push sliding shaft (601) installed on one long side, and a positioning wheel (1061) is welded to the top of the vertical support plate (106) on the side of the shaft (601). The outer circumference of the positioning wheel (1061) is provided with two insertion holes spaced apart, and the head end of the shaft (601) is inserted into the insertion hole. The tail end of the insert shaft (601) protrudes from the head end of the lifting boom (6) and extends in a direction away from the lifting boom (6).

2. The automatic steel structure welding platform according to claim 1, characterized in that, The bottom of the horizontal workbench (1) is symmetrically welded with two ground support frames. One of the ground support frames is equipped with an electrical control box (4). Inside the electrical control box (4) is a contactor that controls the wire feeding mechanism, the gas supply system, the welding host and the motor (8) to start and stop together. The electrical control box (4) is also equipped with a time controller, which is electrically connected to the contactor.

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