Welding equipment for skid lifting lug

Abstract

The utility model discloses welding equipment for a prying block lifting lug, which belongs to the technical field of lifting lug cheek plate welding auxiliary devices and comprises a working table with a working face, and the working face is horizontally arranged. A long-strip-shaped hole penetrating through the workbench is formed in the working face, and the length direction of the long-strip-shaped hole is The two moving blocks are both located below the workbench and can move in the first direction. A vertically-arranged positioning rod is arranged on the moving block, penetrates through the long-strip-shaped hole and extends out of the working face. The driving assembly can drive the two moving blocks to synchronously and reversely move; a lifting lug main plate and a lifting lug cheek plate can be placed on the working face of the lifting lug clamping device, the positioning rods on the two moving blocks penetrate through the pin shaft holes of the lifting lug main plate and the lifting lug cheek plate at the same time, and the two moving blocks are far away from each other so that the positioning rods can abut against the inner walls of the pin shaft holes of the lifting lug main plate and the lifting lug cheek plate respectively. The lifting lug main plate and the lifting lug cheek plate are accurately positioned, welding is facilitated, and meanwhile the concentricity of the pin shaft holes can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting lug cheek plate welding auxiliary devices, in particular to a welding device for a pry block lifting lug. Background Art

[0002] For offshore and chemical industry skids and modules hoisting and lifting, please refer to Figure 7 , usually it is necessary to use lifting ears (including lifting ear main board, lifting ear cheek plate) and shackle; in order to ensure that the pin shaft length of the shackle is fully utilized, lifting ear cheek plates are usually welded on both sides of the lifting ear main board to increase the thickness of the lifting ear main board pin shaft hole; during the lifting and hoisting process, since the pin shaft needs to bear a large load, in order to prevent the pin shaft from being unevenly stressed, the pin shaft holes on the welding lifting ear main board and the lifting ear cheek plate are required to be completely concentric.

[0003] At present, the commonly used method in the industry is to weld the un-perforated lifting ear main plate and the lifting ear cheek plate together, and then use a milling machine to process the pin shaft hole; because the welding process and the milling process of the lifting ear are usually not in the same place, this method requires repeated switching, which is time-consuming; and for this shape of lifting ear, it is not convenient to clamp the milling machine.

[0004] In order to solve the above-mentioned shortcomings, the industry has also tried another process: the lug main plate and the lug cheek plate are directly milled to produce pin holes after being unloaded in the workshop, and then they are sent to the production site and welded together. However, this method has the difficulty of aligning the centers of the pin holes on the lug main plate and the lug cheek plate before welding, and the lug cheek plate is easy to move during welding, making it difficult to ensure concentricity.

[0005] Therefore, developing and designing a welding device that can conveniently realize the welding of the lifting lug main plate and the lifting lug cheek plate and can effectively ensure the concentricity of the pin shaft hole is a problem that needs to be solved urgently at this stage. Summary of the invention

[0006] In order to solve the problems existing in the prior art, the utility model provides a welding device for a pry block lifting ear. The lifting ear main plate and the lifting ear cheek plate can be placed on a working surface. The positioning rods on the two moving blocks simultaneously pass through the pin holes of the lifting ear main plate and the lifting ear cheek plate. The two moving blocks are away from each other so that the positioning rods respectively abut against the inner walls of the pin holes of the lifting ear main plate and the lifting ear cheek plate. The lifting ear main plate and the lifting ear cheek plate can be accurately positioned to facilitate welding, and the concentricity of the pin holes can be effectively guaranteed. The clamping is convenient and the production efficiency is high.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] The utility model provides a welding device for a pry block lifting lug, comprising:

[0009] A workbench, wherein the workbench has a work surface, and the work surface is horizontally arranged; the work surface is provided with an elongated hole penetrating the workbench; and the length direction of the elongated hole is set as a first direction;

[0010] two moving blocks, the moving blocks are located below the workbench and can move along the first direction; the moving blocks are provided with vertically arranged positioning rods, the positioning rods pass through the long holes and extend from the work surface;

[0011] A driving assembly is provided, wherein the driving assembly can drive the two moving blocks to move synchronously in opposite directions.

[0012] As a preferred technical solution, a slide rail extending along the first direction is provided below the workbench, a slider moving along the slide rail is provided on the slide rail, and the moving block is fixed on the slider.

[0013] As a preferred technical solution, a support frame is provided under the workbench, and the workbench is fixed on the support frame; a mounting frame is provided on the support frame, and the slide rail is fixed on the mounting frame.

[0014] As a preferred technical solution, the number of the slide rails is two, and the two slide rails are respectively located on both sides of the long hole.

[0015] As a preferred technical solution, the drive assembly includes a bidirectional screw, which includes a screw rod having a first section and a second section with opposite thread rotation directions, and the first section and the second section are respectively provided with nuts threadedly connected thereto; the screw rod is connected to a driving part that drives it to rotate around its axis.

[0016] As a preferred technical solution, the axis of the screw rod is parallel to the first direction, and the two moving blocks are fixedly connected to the two nuts respectively;

[0017] Alternatively, the axis of the screw rod is perpendicular to the first direction, and a connecting rod is provided between each of the moving blocks and the two nuts, and the connecting rod is hinged to the moving block and the nut respectively.

[0018] As a preferred technical solution, the driving part includes a turbine provided at one end of the screw, a rotatable worm is provided on the support frame, the worm is meshed with the turbine, and a hand wheel is provided at one end of the worm;

[0019] Alternatively, the driving part is configured as a motor, and an output shaft of the motor is drivingly connected to the screw rod.

[0020] As a preferred technical solution, a connecting block is provided between one end of the first section and one end of the second section;

[0021] And / or, the support frame is provided with fixing plates at positions corresponding to both ends of the screw rod, and the screw rod and the fixing plates are rotatably connected via bearings.

[0022] As a preferred technical solution, a leveling threaded through hole is provided on the working surface at one side in the length direction of the long hole, and a leveling screw is provided in the leveling threaded through hole and threadedly connected to it, and the rod of the leveling screw passes through the leveling threaded through hole and extends from the working surface.

[0023] As a preferred technical solution, the elongated holes are provided as a plurality of parallel arranged ones; and each of the moving blocks is provided with a plurality of the positioning rods;

[0024] And / or, the moving block is provided with a plurality of threaded fixing holes, and the lower end of the positioning rod is threadedly connected to the threaded fixing holes.

[0025] The beneficial effects of the utility model are as follows:

[0026] 1. The lifting ear main plate and the lifting ear cheek plate of the utility model can be placed stably on the working surface, the positioning rods on the two moving blocks pass through the pin holes of the lifting ear main plate and the lifting ear cheek plate at the same time, and the two moving blocks are away from each other so that the positioning rods can respectively abut against the inner walls of the pin holes of the lifting ear main plate and the lifting ear cheek plate, so that the lifting ear main plate and the lifting ear cheek plate are accurately clamped and positioned, which is convenient for welding and effectively ensures the concentricity of the pin hole. The clamping is convenient, which reduces the difficulty of on-site welding and improves the production accuracy and efficiency.

[0027] 2. The utility model arranges the long holes into multiple parallel strips, and the moving block is provided with multiple positioning rods which extend out from the long holes, which can effectively reduce the width of each long hole, thereby improving the strength of the working surface and reducing the risk of leakage of larger foreign objects.

[0028] 3. The utility model utilizes the leveling threaded through hole and the leveling screw arranged on one side of the long hole. When the lifting ear main plate is too large and the pin shaft hole is located on one side of the lifting ear main plate, before welding the second lifting ear cheek plate, in order to prevent the lifting ear main plate from tilting to one side, the leveling screw is rotated to support the side of the lifting ear main plate that may be deflected, which can play a role in auxiliary leveling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of a first embodiment of a welding device for a pry block lifting lug of the utility model;

[0030] Figure 2 for Figure 1 A cross-sectional view of the workbench in FIG.

[0031] Figure 3 for Figure 1A schematic diagram of the structure of the supporting frame in FIG.

[0032] Figure 4 for Figure 3 A schematic diagram of the structure of the drive component in FIG.

[0033] Figure 5 It is a structural schematic diagram of a driving assembly in a second embodiment of a welding device for a pry block lifting eye of the utility model;

[0034] Figure 6 It is a structural schematic diagram of a third embodiment of a welding device for a pry block lifting lug of the utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the pry block lifting eye when in use.

[0036] In the figure: 1-workbench, 11-working surface, 12-long hole, 13-leveling threaded through hole, 14-leveling screw, 2-moving block, 21-positioning rod, 22-slide rail, 23-threaded fixing hole, 31-screw, 311-first section, 312-second section, 313-connecting block, 32-nut, 33-connecting rod, 4-support frame, 41-mounting frame, 42-fixing plate, 51-turbine, 52-worm, 53-handwheel, 54-motor, 61-lifting ear mainboard, 62-lifting ear cheek plate, 63-pin shaft hole. DETAILED DESCRIPTION

[0037] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings. Embodiment 1

[0038] Please refer to Figure 1-Figure 4 , which is an embodiment of a welding device for a pry block lifting ear provided by the utility model, comprises a workbench 1, the workbench 1 has a work surface 11, the work surface 11 is horizontally arranged, the lifting ear main plate 61 and the lifting ear cheek plate 62 can be conveniently stacked on the work surface 11; the work surface 11 is provided with a long hole 12 passing through the workbench 1; the length direction of the long hole 12 is set as a first direction; two moving blocks 2 are located below the workbench 1 and can move along the first direction; the moving block 2 is provided with a vertically arranged positioning rod 21, the positioning rod 21 passes through the long hole 12 and extend from the working surface 11, the two moving blocks 2 are connected with a driving assembly that drives them to move synchronously in opposite directions; the positioning rods 21 on the two moving blocks 2 are passed through the pin holes 63 of the ear main board 61 and the ear cheek plate 62, and the driving assembly drives the two moving blocks 2 to move away from each other synchronously, and the positioning rods 21 on the two moving blocks 2 are respectively abutted against the inner walls of the pin holes 63 of the ear main board 61 and the ear cheek plate 62, which can accurately clamp and position the ear main board 61 and the ear cheek plate 62, facilitate welding, and effectively ensure the concentricity of the pin hole 63.

[0039] Need to explain, Figure 1 The direction of the arrow in is the first direction; the workbench 1 is preferably set as a smooth steel plate.

[0040] In this embodiment, please refer to Figure 3 and Figure 4 A slide rail 22 extending along a first direction is provided below the workbench 1 , a slider moving along the slide rail 22 is provided on the slide rail 22 , a moving block 2 is fixed on the slider, and both moving blocks 2 can move along the slide rail 22 .

[0041] Based on the above examples, please refer to Figure 1 and Figure 3 A support frame 4 is provided under the workbench 1, and the workbench 1 is fixed on the support frame 4; a mounting frame 41 is provided on the support frame 4, and the slide rail 22 is fixed on the mounting frame 41; specifically, the support frame 4 is welded by profile angle steel.

[0042] For further information, please refer to Figure 3 and Figure 4 There are two slide rails 22, which are respectively located on both sides of the long hole 12. The moving block 2 is fixedly connected to the sliders on the two slide rails 22 to ensure that the moving block 2 can stably move along the first direction.

[0043] In this embodiment, please refer to Figure 3 and Figure 4 The driving assembly includes a bidirectional screw, which includes a screw 31. The screw 31 has a first section 311 and a second section 312 with opposite thread rotation directions. The first section 311 and the second section 312 are respectively provided with nuts 32 threadedly connected thereto; the screw 31 is connected to a driving part that drives it to rotate around its axis. When the driving part drives the screw 31 to rotate, the nuts 32 on the first section 311 and the second section 312 can move in opposite directions synchronously; further, the axis of the screw 31 is parallel to the first direction, and the two moving blocks 2 are respectively fixedly connected to the two nuts 32, so that the two moving blocks 2 can move in opposite directions synchronously with the two nuts 32.

[0044] Based on the above examples, please refer to Figure 3 and Figure 4 The driving part includes a turbine 51 arranged at one end of the screw 31, a rotatable worm 52 is arranged on the support frame 4, the worm 52 is meshed with the turbine 51, and a handwheel 53 is arranged at one end of the worm 52. By rotating the handwheel 53, the screw 31 can be driven to rotate through the worm gear structure; at the same time, the worm gear structure has a self-locking effect. When the handwheel 53 stops rotating, the moving block 2 can maintain its position unchanged.

[0045] For further information, please refer to Figure 3A fixing plate 42 is provided at the positions corresponding to the two ends of the screw rod 31 on the support frame 4. The screw rod 31 and the fixing plate 42 are rotatably connected through a bearing, so that the screw rod 31 can be rotatably arranged on the support frame 4; at the same time, one end of the first section 311 and one end of the second section 312 are fixedly connected by a connecting block 313 to ensure that the first section 311 and the second section 312 rotate synchronously.

[0046] In this embodiment, please refer to Figure 2 A leveling threaded through hole 13 is provided on the working surface 11 at one side in the length direction of the long hole 12, and a leveling screw 14 threadedly connected to the leveling threaded through hole 13 is provided in the leveling threaded through hole 13. The rod of the leveling screw 14 passes through the leveling threaded through hole 13 and extends out from the working surface 11. When the lifting ear main board 61 is too large and the pin shaft hole 63 is located on one side of the lifting ear main board 61, before welding the second lifting ear cheek plate 62, in order to prevent the lifting ear main board 61 from tilting to one side, the leveling screw 14 is rotated to support the side of the lifting ear main board 61 that may be deflected, which can play a role in auxiliary leveling.

[0047] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 , the elongated holes 12 on the workbench 1 are set to be three parallel strips, and the width of the elongated hole 12 located in the middle is greater than the width of the elongated holes 12 located on both sides; two positioning rods 21 are provided on each moving block 2, and the two positioning rods 21 extend from the elongated hole 12 located in the middle, which can disperse the force and better accurately position the lifting ear main board 61 and the lifting ear cheek plate 62; specifically, the width of the elongated hole 12 located in the middle is preferably allowed to allow three positioning rods 21 to pass through at the same time, and the width of the elongated holes 12 located on both sides is preferably allowed to allow one positioning rod 21 to pass through, which can ensure that the positioning rods 21 can extend from the elongated holes 12 from different positions, and can It can be better suitable for the clamping and welding of lifting ears of different specifications, while improving the strength of the working surface 11 and reducing the risk of leakage of larger foreign objects; in other embodiments, the number and width of the long holes 12 can also be other values, and the number of positioning rods 21 on each moving block 2 can also be adjusted according to the specifications of the pin shaft hole 63 (when the pin shaft hole 63 is small, one positioning rod 21 is set on each moving block 2; when the pin shaft hole 63 is large, the number of positioning rods 21 on each moving block 2 is increased accordingly), so as to be able to conveniently and stably position the lifting ear main board 61 and the lifting ear cheek plate 62 accurately and ensure the concentricity of the pin shaft hole 63.

[0048] For further information, please refer to Figure 2 and Figure 3 The moving block 2 is provided with a plurality of threaded fixing holes 23, the lower end of the positioning rod 21 is threadedly connected to the threaded fixing hole 23, the positioning rod 21 is detachably connected to the moving block 2, and the number and position of the positioning rod 21 can be conveniently adjusted.

[0049] Please refer to Figure 1-Figure 4 The specific use process of the utility model is as follows:

[0050] Select and use a suitable number of positioning rods 21 according to the size of the pin holes 63 of the lifting lug main plate 61 and the lifting lug cheek plate 62;

[0051] Turn the hand wheel 53 to make the moving blocks 2 approach each other synchronously, and ensure that the pin shaft hole 63 can pass through all the positioning rods 21 at the same time; successively pass the lifting ear main plate 61 and one of the lifting ear cheek plates 62 through all the positioning rods 21 through the pin shaft hole 63, and place them on the workbench 1; adjust the relative position between the lifting ear main plate 61 and the lifting ear cheek plate 62 to facilitate subsequent clamping; reversely turn the hand wheel 53 to make the moving blocks 2 move away from each other synchronously, and all the positioning rods 21 abut against the inner wall surface of the pin shaft hole 63 to tighten and clamp the lifting ear main plate 61 and the lifting ear cheek plate 62;

[0052] Welding the lifting lug main plate 61 to the lifting lug cheek plate 62;

[0053] After welding one lifting lug cheek plate 62, turn the hand wheel 53 to cancel the clamping of the positioning rod 21; turn over the welded parts and pass through the positioning rod 21 again, and then place another lifting lug cheek plate 62; at this time, if the lifting lug main plate 61 is relatively eccentric, screw in the leveling screw 14 and make the leveling screw 14 support the eccentric side of the lifting lug main plate 61; reversely turn the hand wheel 53 to tighten the lifting lug main plate 61 and the lifting lug cheek plate 62;

[0054] The second lifting lug cheek plate 62 is welded to the lifting lug main plate 61 , and the hand wheel 53 is rotated again to cancel the clamping of the positioning rod 21 , and the welded lifting lug is removed. Embodiment 2

[0055] Please refer to Figure 5 The main difference between this embodiment and the first embodiment is that the axis of the screw rod 31 is perpendicular to the first direction, a connecting rod 33 is provided between each moving block 2 and the two nuts 32, and the four connecting rods 33 are respectively hinged to the moving blocks 2 and the nuts 32. When the two nuts 32 move synchronously, the two moving blocks 2 can also be driven to move synchronously through the connecting rod 33.

[0056] For clarification, please refer to Figure 5 Since the moving direction of the moving block 2 is perpendicular to the axis of the screw rod 31, the movement of the moving block 2 is restricted by the two nuts 32 at the same time, which increases the ability of the moving block 2 to lock its position after it stops moving. Embodiment 3

[0057] Please refer to Figure 6The main difference between this embodiment and the first embodiment is that the driving part is set as a motor 54, the output shaft of the motor 54 is transmission-connected to the screw rod 31, and the motor 54 is connected to a button for controlling its switch. The button can be used to control the synchronous reverse movement of the positioning rod 21, so as to realize the automatic clamping and loosening of the lifting ear main board 61 and the lifting ear cheek plate 62 by the positioning rod 21, thereby realizing the automation of clamping.

[0058] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A welding device for skid lugs, characterized in that: include: A workbench (1), the workbench (1) having a work surface (11), the work surface (11) being arranged horizontally; the work surface (11) being provided with an elongated hole (12) penetrating the workbench (1); the length direction of the elongated hole (12) being arranged in a first direction; two moving blocks (2), the moving blocks (2) being located below the workbench (1) and being movable along the first direction; the moving blocks (2) being provided with vertically arranged positioning rods (21), the positioning rods (21) passing through the long holes (12) and extending out from the work surface (11); A driving component capable of driving the two moving blocks (2) to move synchronously in opposite directions.

2. The welding equipment for skid lugs according to claim 1, characterized in that: A slide rail (22) extending along the first direction is provided below the workbench (1); a slider moving along the slide rail (22) is provided on the slide rail (22); and the moving block (2) is fixed on the slider.

3. The welding equipment for skid lugs according to claim 2, characterized in that: A support frame (4) is provided below the workbench (1), and the workbench (1) is fixed on the support frame (4); a mounting frame (41) is provided on the support frame (4), and the slide rail (22) is fixed on the mounting frame (41).

4. The welding equipment for skid lifting lugs according to claim 3, characterized in that: The slide rails (22) are provided in two pieces, and the two slide rails (22) are respectively located on two sides of the long hole (12).

5. The welding equipment for skid lifting lugs according to claim 3, characterized in that: The driving assembly comprises a bidirectional lead screw, the bidirectional lead screw comprising a lead screw (31), the lead screw (31) having a first section (311) and a second section (312) having threads with opposite rotation directions, the first section (311) and the second section (312) being respectively provided with nuts (32) threadedly connected thereto; the lead screw (31) is connected to a driving portion for driving it to rotate around its axis.

6. The welding equipment for skid lifting lugs according to claim 5, characterized in that: The axis of the screw rod (31) is parallel to the first direction, and the two moving blocks (2) are fixedly connected to the two nuts (32) respectively; Alternatively, the axis of the screw rod (31) is perpendicular to the first direction, and a connecting rod (33) is provided between each of the moving blocks (2) and the two nuts (32), and the connecting rod (33) is hinged to the moving block (2) and the nut (32) respectively.

7. A welding device for skid lifting lugs according to claim 5 or 6, characterized in that: The driving part comprises a turbine (51) arranged at one end of the screw (31); a rotatable worm (52) is arranged on the support frame (4); the worm (52) is meshed with the turbine (51); and a hand wheel (53) is arranged at one end of the worm (52); Alternatively, the driving part is configured as a motor (54), and an output shaft of the motor (54) is drivingly connected to the screw rod (31).

8. A welding device for skid lifting lugs according to claim 5 or 6, characterized in that: A connecting block (313) is provided between one end of the first section (311) and one end of the second section (312); And / or, fixed plates (42) are provided at positions on the support frame (4) corresponding to both ends of the screw rod (31), and the screw rod (31) and the fixed plates (42) are rotatably connected via bearings.

9. The welding equipment for skid lifting lugs according to claim 1, characterized in that: A leveling threaded through hole (13) is provided on the working surface (11) at one side in the length direction of the long hole (12), a leveling screw (14) threadably connected thereto is provided in the leveling threaded through hole (13), and a rod of the leveling screw (14) passes through the leveling threaded through hole (13) and extends out from the working surface (11).

10. The welding equipment for skid lifting lugs according to claim 1, characterized in that: The elongated holes (12) are provided as a plurality of parallel arranged ones; each of the moving blocks (2) is provided with a plurality of positioning rods (21); And / or, the moving block (2) is provided with a plurality of threaded fixing holes (23), and the lower end of the positioning rod (21) is threadedly connected to the threaded fixing holes (23).

Images