CN112338318B

CN112338318B - Workstation is used in welding of steel pipe special-shaped structure

Info

Publication number: CN112338318B
Application number: CN202110028112.8A
Authority: CN
Inventors: 朱雪峰
Original assignee: Individual
Current assignee: Li Guang; Wang Chunsheng
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-12-03
Anticipated expiration: 2041-01-11
Also published as: CN112338318A

Abstract

The invention relates to the technical field of special-shaped steel pipes and discloses a workbench for welding a special-shaped structure of a steel pipe, which comprises a table board, wherein a fixed seat is fixedly connected to the upper surface of the table board, a fixed block is connected to the fixed seat in a sliding manner, a threaded rod is connected to the fixed block in a threaded manner, the threaded rod is rotatably connected to the fixed seat, a first rotating handle is fixedly connected to the upper end of the threaded rod, a clamping mechanism is arranged in the fixed block, a special-shaped steel pipe is arranged in the clamping mechanism, a rotating seat is rotatably connected to the upper surface of the table board corresponding to the position of the special-shaped steel pipe, the special-shaped steel pipe is driven to rotate together with a welding block when a travelling wheel rotates and is welded, and because the rotating speed of a motor is constant, a gas welding head can be uniformly welded along the peripheral line of the special-shaped steel pipe, surfacing caused by the fact that the special-shaped steel pipe is directly rotated and the linear velocity is not uniform, and surfacing, welding, The welding leakage and the like, and meanwhile, the special-shaped steel pipe and the welding block are always kept vertical during welding, so that the welding quality is high, and the welding is attractive.

Description

Workstation is used in welding of steel pipe special-shaped structure

Technical Field

The invention relates to the technical field of special-shaped steel pipes, in particular to a workbench for welding a special-shaped structure of a steel pipe.

Background

The special-shaped seamless steel pipe is a general name of seamless steel pipes with other cross-sectional shapes except for round pipes, is an economic cross-section steel pipe, comprises non-circular cross-sectional profiles, equal wall thicknesses, variable diameters and variable wall thicknesses along the length direction, symmetrical and asymmetrical cross sections such as squares, rectangles, cones, trapezoids, spirals and the like, can adapt to the particularity of use conditions, saves metals and improves the labor productivity of part manufacturing, is widely applied to the aspects of aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, building, light textile, boiler manufacturing and the like, and can be produced by cold drawing, welding, extruding, hot rolling and the like.

When the special-shaped steel pipe is used, a blocking plate needs to be welded at the end part or welded with other objects, when the special-shaped steel pipe is welded, the special-shaped steel pipe is irregular in section shape and cannot be accurately positioned during welding, the welding quality is completely determined by human factors, welding quality problems such as unattractive welding seams, burning-through, air holes and the like are easily caused, and the special-shaped steel pipe is long, welding needs to be carried out along the periphery of the end part of the special-shaped steel pipe during welding, the operation is inconvenient, and meanwhile, when the special-shaped steel pipe is rotated to carry out welding, linear speeds of all parts of the special-shaped steel pipe are different, so that uneven welding is caused, surfacing, welding leakage and the like are caused.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the workbench for welding the special-shaped structure of the steel pipe, which has the advantages of high welding quality, simple clamping, time and labor saving and the like, and solves the problems in the background art.

(II) technical scheme

In order to achieve the purposes of high welding quality, simple clamping, time saving and labor saving, the invention provides the following technical scheme: a workbench for welding a special-shaped structure of a steel pipe comprises a workbench surface, wherein a fixed seat is fixedly connected to the upper surface of the workbench surface, a fixed block is connected to the fixed seat in a sliding manner, a threaded rod is connected to the fixed block in a threaded manner and is rotatably connected to the fixed seat, a first rotating handle is fixedly connected to the upper end of the threaded rod, a clamping mechanism is arranged in the fixed block, a special-shaped steel pipe is arranged in the clamping mechanism, the upper surface of the workbench surface is rotatably connected with a rotating seat corresponding to the position of the special-shaped steel pipe, a welding block is placed on the rotating seat, a sliding block is connected to the upper surface of the workbench surface in a sliding manner, a first compression spring is arranged between the sliding block and the inner wall of the workbench surface, a sliding rod is connected to the sliding block in a sliding manner, a second compression spring is arranged between the sliding rod and the inner wall of the sliding block, an arc-shaped groove matched with the lower end of the sliding rod is formed in the workbench surface, and a pulling mechanism is arranged on the upper surface of the sliding block corresponding to the upper end of the sliding rod, and a traveling mechanism and an air welding head are fixedly connected to one side of the sliding block close to the special-shaped steel pipe.

Preferably, fixture includes the ring, the ring rotates to be connected in the fixed block, sliding connection has the splint that two bilateral symmetry set up in the ring, two be provided with the casing between the splint, the casing internal rotation is connected with the disc, the helical tooth has been seted up to the disc upper surface, disc central point puts fixedly connected with connecting rod, the connecting rod other end runs through casing setting and fixedly connected with second and changes the handle, sliding connection has the connecting block that two bilateral symmetry set up on the casing, two the connecting block is close to the disc and all sets up with helical tooth assorted arc tooth simultaneously, the arc tooth card is established in the helical tooth, connecting block fixed connection is in splint.

Preferably, the pulling mechanism comprises two supporting blocks, the supporting blocks are fixedly connected to the sliding block, a first rotating shaft is rotatably connected between the two supporting blocks, an oval block matched with the arc-shaped groove is fixedly connected to the middle position of the first rotating shaft, rotating rods are fixedly connected to two ends of the first rotating shaft, and a handle is fixedly connected between the two rotating rods.

Preferably, running gear includes the rectangular block, rectangular block fixed connection is in the slider, the rectangular block is close to heterotypic steel pipe one side and is provided with the walking wheel, fixedly connected with second pivot on the walking wheel, the second pivot is rotated and is connected in the rectangular block, second pivot one end fixedly connected with driven gear, fixedly connected with motor in the rectangular block, motor output end fixedly connected with driving gear is located the rectangular block internal rotation between driving gear and the driven gear is connected with drive gear.

Preferably, the length of the air welding head extending relative to the sliding block is shorter than the length of the travelling wheel extending relative to the sliding block.

Preferably, the walking wheel is made of metal materials, and a rubber layer is arranged on the surface of the walking wheel.

Preferably, a bearing is sleeved on the rotating seat and embedded in the table top.

Preferably, the angle of the lower end of the rotating seat is smaller than the angle of the groove on the table top corresponding to the lower end of the rotating seat.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1. the workbench for welding the special-shaped structure of the steel pipe drives the special-shaped steel pipe and the welding block to rotate together when the walking wheels rotate, and performs welding, and the rotating speed of the motor is constant, so that the gas welding head can perform uniform welding along the peripheral line of the special-shaped steel pipe, the problems of surfacing, welding leakage and the like caused by nonuniform linear speed due to the fact that the gas welding head directly rotates for welding the special-shaped steel pipe are avoided, meanwhile, the special-shaped steel pipe and the welding block are always kept perpendicular during welding, the welding quality is high, and the welding is attractive;

2. according to the workbench for welding the special-shaped structure of the steel pipe, the rotary seat is arranged on the table top, the welding block is placed on the rotary seat, the special-shaped steel pipe is placed in the clamping mechanism, the second rotary handle is rotated, the special-shaped steel pipe is clamped through the matching of the spiral teeth and the arc teeth, the special-shaped steel pipe is not easy to loosen during clamping, the disassembly is simple, then the first rotary handle is rotated to enable the special-shaped steel pipe to be abutted against the welding block, the special-shaped steel pipe and the welding block can be abutted through friction force, the special-shaped steel pipe and the welding block rotate together, the clamping is completed, and the workbench is convenient and simple;

3. this kind of workstation is used in welding of steel pipe special-shaped structure is through fixing the perpendicular mesa of heterotypic steel pipe in fixture to support tightly with the welding piece, first compression spring promotes the walking wheel and supports tightly with heterotypic steel pipe surface, then drives the walking wheel through the motor and rotates, and the walking wheel drives heterotypic steel pipe and welding piece through frictional force and rotates in the lump, welds in the pivoted, does not need artifical round trip movement or upset heterotypic steel pipe, labour saving and time saving during the welding.

Drawings

FIG. 1 is a schematic front sectional view of a workbench for welding a special-shaped structure of a steel pipe according to the present invention;

FIG. 2 is a schematic view of a top-down structure of a fixing block and a clamping mechanism in the workbench for welding the special-shaped structure of the steel pipe;

FIG. 3 is a schematic view of a part of the structure of a clamping mechanism in a workbench for welding a special-shaped structure of a steel pipe according to the present invention;

FIG. 4 is a schematic structural diagram of a disc in a workbench for welding a special-shaped structure of a steel pipe according to the present invention;

FIG. 5 is a schematic structural diagram of a connecting block in a workbench for welding a special-shaped structure of a steel pipe according to the invention;

FIG. 6 is a schematic view of a top-down structure of a clamping mechanism in a workbench for welding a special-shaped structure of a steel pipe according to the invention;

FIG. 7 is a schematic structural diagram of a sliding block in a workbench for welding a special-shaped structure of a steel pipe according to the invention;

FIG. 8 is a schematic structural view of a pulling mechanism in a workbench for welding a special-shaped structure of a steel pipe according to the present invention;

FIG. 9 is a schematic structural view of a traveling mechanism in a workbench for welding a special-shaped structure of a steel pipe according to the invention;

FIG. 10 is a schematic view of the structure at A in FIG. 1;

fig. 11 is a schematic structural diagram at B in fig. 1.

In the figure: 1. a table top; 2. a fixed seat; 3. a fixed block; 4. a threaded rod; 5. a first rotating handle; 6. a clamping mechanism; 61. a circular ring; 62. a splint; 63. a housing; 64. a disc; 65. helical teeth; 66. a connecting rod; 67. a second rotating handle; 68. connecting blocks; 69. arc-shaped teeth; 7. a special-shaped steel pipe; 8. a rotating seat; 9. welding the blocks; 10. a slider; 11. a first compression spring; 12. a slide bar; 13. a second compression spring; 14. an arc-shaped slot; 15. a card slot; 16. a pulling mechanism; 161. a support block; 162. a first rotating shaft; 163. an elliptical block; 164. a rotating rod; 165. a grip; 17. a traveling mechanism; 171. a rectangular block; 172. a traveling wheel; 173. a second rotating shaft; 174. a driven gear; 175. a motor; 176. a driving gear; 177. a transmission gear; 18. an air welding head; 19. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1, 10 and 11, a workbench for welding a special-shaped structure of a steel pipe comprises a table top 1, wherein a fixed seat 2 is fixedly connected to the upper surface of the table top 1, a fixed block 3 is slidably connected to the fixed seat 2, a threaded rod 4 is threadedly connected to the fixed block 3, the threaded rod 4 is rotatably connected to the fixed seat 2, a first rotating handle 5 is fixedly connected to the upper end of the threaded rod 4, a clamping mechanism 6 is arranged in the fixed block 3, a special-shaped steel pipe 7 is arranged in the clamping mechanism 6, a rotating seat 8 is rotatably connected to the upper surface of the table top 1 corresponding to the position of the special-shaped steel pipe 7, a welding block 9 is arranged on the rotating seat 8, a sliding block 10 is slidably connected to the upper surface of the table top 1, a first compression spring 11 is arranged between the sliding block 10 and the inner wall of the table top 1, a sliding rod 12 is slidably connected to the sliding block 10, a second compression spring 13 is arranged between the sliding rod 12 and the inner wall of the sliding block 10, and an arc-shaped groove 14 is formed at the upper end of the sliding rod 12, a clamping groove 15 matched with the lower end of the sliding rod 12 is formed in the table board 1, a pulling mechanism 16 is arranged on the upper surface of the sliding block 10 corresponding to the upper end of the sliding rod 12, and a traveling mechanism 17 and an air welding head 18 are fixedly connected to one side, close to the special-shaped steel pipe 7, of the sliding block 10.

Please refer to fig. 2 to 6, wherein, the clamping mechanism 6 includes a circular ring 61, the circular ring 61 is rotatably connected to the fixing block 3, two clamping plates 62 which are arranged in bilateral symmetry are slidably connected to the circular ring 61, a housing 63 is arranged between the two clamping plates 62, a disc 64 is rotatably connected to the housing 63, spiral teeth 65 are provided on the upper surface of the disc 64, a connecting rod 66 is fixedly connected to the center of the disc 64, the other end of the connecting rod 66 penetrates through the housing 63 and is fixedly connected with a second rotating handle 67, two connecting blocks 68 which are arranged in bilateral symmetry are slidably connected to the housing 63, arc teeth 69 which are matched with the spiral teeth 65 are provided on the two connecting blocks 68 close to the disc 64, the arc teeth 69 are clamped in the spiral teeth 65, and the connecting blocks 68 are fixedly connected to the clamping plates 62.

Referring to fig. 7 and 8, the pulling mechanism 16 includes two supporting blocks 161, the supporting blocks 161 are fixedly connected to the slider 10, a first rotating shaft 162 is rotatably connected between the two supporting blocks 161, an elliptical block 163 matched with the arc-shaped groove 14 is fixedly connected to the middle of the first rotating shaft 162, two ends of the first rotating shaft 162 are fixedly connected to rotating rods 164, and a handle 165 is fixedly connected between the two rotating rods 164.

Referring to fig. 9, the traveling mechanism 17 includes a rectangular block 171, the rectangular block 171 is fixedly connected to the sliding block 10, a traveling wheel 172 is disposed on one side of the rectangular block 171 close to the special-shaped steel tube 7, a second rotating shaft 173 is fixedly connected to the traveling wheel 172, the second rotating shaft 173 is rotatably connected to the rectangular block 171, one end of the second rotating shaft 173 is fixedly connected to a driven gear 174, a motor 175 is fixedly connected to the inside of the rectangular block 171, an output end of the motor 175 is fixedly connected to a driving gear 176, and a transmission gear 177 is rotatably connected to the rectangular block 171 between the driving gear 176 and the driven gear 174.

Wherein the length of the air welding head 18 extending relative to the slider 10 is shorter than the length of the walking wheel 172 extending relative to the slider 10. By the design, when the travelling wheels 172 abut against the surface of the special-shaped steel pipe 7, the gas welding heads 18 and the surface of the special-shaped steel pipe 7 always keep a fixed distance, so that the welding stability is higher, and the gas welding heads 18 are protected.

Wherein, walking wheel 172 is made for the metal material, and walking wheel 172 surface is provided with the rubber layer. This kind of design, through the walking wheel 172 that the metal material made, can improve walking wheel 172's life greatly, through walking wheel 172 surface and setting up the rubber layer, can increase the frictional force between walking wheel 172 and the heterotypic steel pipe 7, during the drive, stability is higher.

Wherein, the rotating seat 8 is sleeved with a bearing 19, and the bearing 19 is embedded in the table-board 1. This kind of design will rotate seat 8 and mesa 1 through setting up bearing 19 and separate, can reduce the frictional force between rotating seat 8 and mesa 1 greatly, and is more stable, laborsaving during the rotation.

Wherein, the angle of the lower end of the rotating seat 8 is smaller than the angle of the corresponding groove on the table board 1. The design can reduce the contact area between the lower end of the rotating seat 8 and the table board 1, thereby reducing the friction force and being more stable and labor-saving during rotation.

The working principle is as follows: when the special-shaped steel pipe welding machine is used, the handle 165 is held by hand firstly to pull the sliding block 10 backwards, when the sliding rod 12 moves to the position of the clamping groove 15, the rotating rod 164 is rotated to the vertical position, the long shaft of the oval block 163 abuts against the arc-shaped groove 14 at the moment, the sliding rod 12 is pushed to move downwards to be clamped into the clamping groove 15, the position of the sliding block 10 is fixed, the welding block 9 is placed on the rotating base 8, the special-shaped steel pipe 7 is inserted between the two clamping plates 62, the lower end of the special-shaped steel pipe 7 abuts against the welding block 9, then the second rotating handle 67 is rotated to drive the disc 64 to rotate, the two connecting blocks 68 are driven to mutually approach through the matching of the spiral teeth 65 and the arc-shaped teeth 69, so that the two clamping plates 62 clamp the special-shaped steel pipe 7, then the first rotating handle 5 is rotated to match with the threaded hole on the fixing block 3 to drive the fixing block 3 to descend to enable the special-shaped steel pipe 7 to be tightly pressed against the welding block 9, then the rotating rod 164 is rotated to drive the oval block 163 to rotate, the short shaft of the oval block 163 is abutted to the arc-shaped groove 14, the slide rod 12 is acted by the acting force of the second compression spring 13 and separated from the clamping groove 15, then the first compression spring 11 pushes the slide block 10 to move until the walking wheel 172 is abutted to the special-shaped steel pipe 7, then the motor 175 is started to drive the walking wheel 172 to rotate, the special-shaped steel pipe 7 and the welding block 9 are driven to rotate together through friction force, meanwhile, the joint between the special-shaped steel pipe 7 and the welding block 9 is welded through the air welding head 18, the rotating speed of the motor 175 is constant, therefore, the air welding head 18 can be uniformly welded along the peripheral line of the special-shaped steel pipe 7, and the welding quality is high.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The workbench for welding the special-shaped structure of the steel pipe is characterized by comprising a workbench top (1), wherein a fixed seat (2) is fixedly connected to the upper surface of the workbench top (1), a fixed block (3) is connected to the fixed seat (2) in a sliding manner, a threaded rod (4) is connected to the fixed block (3) in a threaded manner, the threaded rod (4) is rotatably connected to the fixed seat (2), a first rotating handle (5) is fixedly connected to the upper end of the threaded rod (4), a clamping mechanism (6) is arranged in the fixed block (3), a special-shaped steel pipe (7) is arranged in the clamping mechanism (6), a rotating seat (8) is rotatably connected to the upper surface of the workbench top (1) corresponding to the position of the special-shaped steel pipe (7), a welding block (9) is placed on the rotating seat (8), a sliding block (10) is connected to the upper surface of the workbench top (1) in a sliding manner, and a first compression spring (11) is arranged between the sliding block (10) and the inner wall of the workbench top (1), a sliding rod (12) is connected onto the sliding block (10) in a sliding mode, a second compression spring (13) is arranged between the sliding rod (12) and the inner wall of the sliding block (10), an arc-shaped groove (14) is formed in the upper end of the sliding rod (12), a clamping groove (15) matched with the lower end of the sliding rod (12) is formed in the table top (1), a pulling mechanism (16) is arranged on the upper surface of the sliding block (10) corresponding to the upper end of the sliding rod (12), and a traveling mechanism (17) and an air welding head (18) are fixedly connected to one side, close to the special-shaped steel pipe (7), of the sliding block (10);

the traveling mechanism (17) comprises a rectangular block (171), the rectangular block (171) is fixedly connected to a sliding block (10), a traveling wheel (172) is arranged on one side, close to the special-shaped steel pipe (7), of the rectangular block (171), a second rotating shaft (173) is fixedly connected to the traveling wheel (172), the second rotating shaft (173) is rotatably connected to the rectangular block (171), a driven gear (174) is fixedly connected to one end of the second rotating shaft (173), a motor (175) is fixedly connected to the inside of the rectangular block (171), an output end of the motor (175) is fixedly connected to a driving gear (176), and a transmission gear (177) is rotatably connected to the rectangular block (171) between the driving gear (176) and the driven gear (174);

fixture (6) includes ring (61), ring (61) rotates to be connected in fixed block (3), sliding connection has splint (62) that two bilateral symmetry set up in ring (61), two be provided with casing (63) between splint (62), casing (63) internal rotation is connected with disc (64), spiral tooth (65) have been seted up to disc (64) upper surface, disc (64) central point puts fixedly connected with connecting rod (66), the connecting rod (66) other end runs through casing (63) setting and fixedly connected with second commentaries on classics handle (67), sliding connection has connecting block (68) that two bilateral symmetry set up on casing (63), two connecting block (68) are close to disc (64) one side and all set up arc tooth (69) with spiral tooth (65) assorted, arc tooth (69) card is established in spiral tooth (65), the connecting block (68) is fixedly connected to the clamping plate (62).

2. The workbench for welding the special-shaped structure of the steel pipe as recited in claim 1, wherein the pulling mechanism (16) comprises two supporting blocks (161), the supporting blocks (161) are fixedly connected to the slider (10), a first rotating shaft (162) is rotatably connected between the two supporting blocks (161), an elliptical block (163) matched with the arc-shaped groove (14) is fixedly connected to the middle position of the first rotating shaft (162), rotating rods (164) are fixedly connected to both ends of the first rotating shaft (162), and a handle (165) is fixedly connected between the two rotating rods (164).

3. The workbench for welding the special-shaped structure of the steel pipe as recited in claim 1, wherein the extension length of the air welding head (18) relative to the slide block (10) is shorter than the extension length of the walking wheel (172) relative to the slide block (10).

4. The workbench for welding the special-shaped structure of the steel pipe as recited in claim 1, wherein the walking wheel (172) is made of metal material, and a rubber layer is arranged on the surface of the walking wheel (172).

5. The workbench for welding the special-shaped structure of the steel pipe as recited in claim 1, wherein a bearing (19) is sleeved on the rotating base (8), and the bearing (19) is embedded in the table top (1).

6. The workbench for welding the special-shaped structure of the steel pipe as recited in claim 1, wherein the angle of the lower end of the rotating seat (8) is smaller than the angle of the corresponding groove on the table top (1).