CN110653513A

CN110653513A - Circular seam welding device

Info

Publication number: CN110653513A
Application number: CN201910842049.4A
Authority: CN
Inventors: 钱少杰
Original assignee: Tongxiang Jiafeng Precision Machinery Co Ltd
Current assignee: Tongxiang Jiafeng Precision Machinery Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-01-07

Abstract

The invention discloses a circular seam welding device, wherein a base is positioned at the bottom, a three-jaw chuck is positioned at the upper part of the base and fixedly connected with the base, a motor is fixed at the upper part of the base, one end of an output shaft of the motor is fixedly connected with the center of a driving chain wheel, the chain is horizontally arranged, the driving chain wheel and a driven chain wheel are respectively positioned at two ends of the chain and meshed with the chain, the bottom of the three-jaw chuck is fixedly connected with the driven chain wheel, a supporting column is a solid cylinder, an arc-shaped fixing piece is fixed at the upper part of the supporting column, the three-jaw chuck is a hollow three-jaw chuck, a through groove is formed in the middle of the three-jaw chuck, the supporting column is vertically arranged in the through groove and fixedly connected with the three-jaw chuck through three clamping jaws, an arc-shaped. The automatic girth welding is realized by driving the three-jaw chuck to rotate through the motor so that the arc tube fixed on the three-jaw chuck rotates.

Description

Circular seam welding device

Technical Field

The invention relates to the field of pipeline machining, in particular to a circular seam welding device.

Background

The arc-shaped pipeline of the exhaust pipe is machined by cutting the existing pipeline, polishing the existing pipeline, performing spot welding on a plurality of points, performing girth welding after the spot welding, and finally performing wiping and inspection; the circular seam welding refers to the welding of various circular and annular welding seams, the welding seam formed by welding is a closed circular ring, the circular seam welding is completed by manual welding in many ways when the existing exhaust pipe is used for processing an arc-shaped pipeline, but the operation mode of manual circular seam welding is difficult to control because the welding part is difficult to control, so that the welding efficiency is low, and the welding quality is poor.

Disclosure of Invention

The invention aims to provide a circular seam welding device, which solves the problems of low efficiency and poor welding quality of manual circular seam welding.

The technical purpose of the invention is realized by the following technical scheme:

a circular seam welding device comprises a base, a motor, a chain, a driving sprocket, a driven sprocket, a three-jaw chuck, a supporting column, an arc-shaped fixing sheet, an arc-shaped pipe and a welding joint, wherein the base is positioned at the bottom, the three-jaw chuck is positioned at the upper part of the base, the three-jaw chuck is fixedly connected with the base, the motor is positioned at the upper part of the base and is fixedly connected with the base, the motor is vertically arranged, the motor output shaft is far away from one end of the motor and is fixedly connected with the center of the driving sprocket, the chain is horizontally arranged, the driving sprocket and the driven sprocket are respectively positioned at the two ends of the chain and are meshed with the chain, the bottom of the three-jaw chuck passes through the center of the driven sprocket and is fixedly connected with the driven sprocket, the supporting column is a solid cylinder, the arc-shaped fixing sheet is positioned, the three-jaw chuck is cavity three-jaw chuck, and logical groove has been seted up at the middle part, the support column is vertical setting and is located lead to the inslot, just the support column with three-jaw chuck is through three jack catch fixed connection, the arc pipe is located arc stationary blade top and with arc stationary blade fixed connection, welded joint is located arc pipe one side with the same high position of arc pipe welding seam.

Adopt above-mentioned technical scheme, it rotates to drive the chain through the motor rotation, thereby make driven sprocket drive three-jaw chuck rotate, three-jaw chuck utilizes the radial movement of the three movable jack catch of equipartition on the chuck body, press from both sides the tight fixing of support column lower extreme at three-jaw chuck logical inslot, make the support column rotate along with three-jaw chuck's rotation, make the arc stationary blade on support column upper portion rotate, thereby reach the arc pipe pivoted effect that makes with the arc stationary blade fixed, welded joint is fixed in arc pipe one side and the same high position of arc roof pipe welding seam, consequently, can make welded joint weld the circular weld of arc venturi tube through rotating the arc pipe, reach and need not the artifical effect that just can carry out the girth welding.

Preferably, the clamping device further comprises an arc-shaped buckle strip and locking pliers, wherein the arc-shaped buckle strip is located at the top of the arc-shaped fixing piece, one end of the arc-shaped buckle strip is hinged to one end of the top of the arc-shaped fixing piece, the other end of the arc-shaped buckle strip is connected with a first fixing block, the first fixing block is welded and fixed with one end of the locking pliers in a jaw welding mode, the top of the arc-shaped fixing piece is not fixedly connected with one end of the arc-shaped buckle strip and is provided with a second fixing block, and the first fixing block and the second fixing block are clamped.

By adopting the technical scheme, when the arc-shaped pipe is placed in the arc-shaped fixing piece, the arc-shaped hasp strip is used for hasp fixing, one end of the arc-shaped hasp strip is hinged with one end of the arc-shaped fixing piece, the other end of the arc-shaped hasp strip is rotated to the other end of the arc-shaped fixing piece, at the moment, the first fixing block on the arc-shaped hasp strip is contacted with the second fixing block on the arc-shaped fixing piece, the clamping principle of the locking pliers is utilized, the locking pliers can obtain multiple times of force reinforcement through two times of lever application, namely, when the included angle of a group of ejector rods is larger, the force reinforcement can be obtained from force decomposition, so that the locking pliers are more labor-saving to use, the pliers are characterized in that the pliers jaws can be locked and generate great clamping force, clamped parts cannot be loosened, the effect of stable clamping is achieved, one end of the locking pliers is fixedly, can make fixed block two support each other tightly with the fixed block and be in fixed state to it is fixed with the arc pipe centre gripping through arc stationary blade and arc hasp strip.

As preferred, still include baffle, air feed case, pipe, connection lid, the baffle is vertical setting, the air feed case is located baffle one side and with baffle fixed connection, pipe one end with air feed case fixed connection, the other end passes connection lid center and with connection lid fixed connection, the connection lid comprises big fifth wheel and little fifth wheel fixed connection, big fifth wheel is located and is close to pipe one side, little fifth wheel is located keeps away from pipe one side, just little fifth wheel cross-section size with the arc pipe mouth of pipe is unanimous mutually, the arc pipe with the connection lid joint is fixed.

Adopt above-mentioned technical scheme, send protective gas through the case of supplying gas, protective gas sends the welding of arc pipe pair arc venturi tube to the pipe through the pipe and protects, and is fixed through connecting lid and arc venturi tube joint for it forms inclosed environment with the arc mouth of pipe to connect the lid, makes the safe gas that the pipe sent out can get into arc pipe welding department and not spill over from the pipe mouth, improves protective gas's availability factor.

Preferably, the protective gas sent out by the gas sending box is argon.

Adopt above-mentioned technical scheme, argon is inert gas, can keep apart the air outside the weld zone through rushing into argon gas, prevents the oxidation of weld zone, and because argon gas density is big, consequently consume under the equal welding condition less, chemical property is very inactive, do not react with the metal at the high temperature, can not have a series of problems such as oxidation scaling loss, be insoluble in liquid metal, can not cause the gas pocket, and the production of argon gas, storage, cost of transportation are low, consequently choose for use the argon gas as protective gas.

Preferably, the motor 5IK is a variable speed forward and reverse motor.

Adopt above-mentioned technical scheme, the 5IK variable speed is just reversing the rotational speed that the motor can be adjusted to the motor, also can adjust the just reversing of motor, thereby can adjust the rotational speed of motor according to the welded degree of difficulty, thereby difficult welded arc pipe can prolong the welding time of every position through the rotational speed that reduces the motor and reach required welding effect, easy welded arc pipe can improve welded efficiency through the rotational speed that improves the motor, and weld back and forth through setting up just reversing to the arc venturi tube and improve welding quality, the phenomenon that the transposition appears together because of following the arc pipe with a counter rotation has also been prevented to the pipe simultaneously.

Preferably, the base layer is located on the lower portion of the base, the bottom of the support is located on the surface of the base layer, the support is fixedly connected with the base layer, the support is in an inverted L shape, the welding joint is located at the upper end of the top of the support, and the welding joint is fixedly connected with the top of the support.

Adopt above-mentioned technical scheme, through setting up the support for on welded joint can be fixed in the support, need not the manual work and control welded joint, saved the manpower, and the manual work is controlled and can appear rocking the phenomenon, through the support fixed ratio manual work hold stable, improved welding quality.

Preferably, the support device further comprises a cylinder, support rods, a support shaft and a sliding plate, wherein the cylinder is located at the top of the support and fixedly connected with the support, one end of the cylinder piston rod is far away from the cylinder, the welding joint is hinged to the arc-shaped pipe, a sliding block is fixed at the lower end of the middle of the welding joint, sliding grooves are formed in the sliding plate along the length direction of the sliding plate, the two support rods are arranged on two sides of the welding joint on the upper portion of the support respectively, the support shaft is located at the tops of the two support rods and fixedly connected with the support rods, and the support shaft penetrates through the sliding plate and.

By adopting the technical scheme, the welding joint is rotated by moving the piston rod of the air cylinder, so that the orientation of the welding joint is adjusted, the welding joint can weld the arc-shaped pipe at the optimal position and angle, and the welding quality is improved.

Preferably, the welding device further comprises a protective shell, wherein the protective shell is located around the welding joint and fixedly connected with the support.

Adopt above-mentioned technical scheme, through setting up the protective housing, splash and harmful substance sputter when preventing to weld cause the damage to instrument and personnel on every side.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic diagram of an embodiment showing the position of a three-jaw chuck;

FIG. 3 is a schematic diagram of an embodiment showing a position of a chain;

FIG. 4 is a schematic structural view of the locking pliers and the arc-shaped buckle strip according to the embodiment;

FIG. 5 is a schematic diagram illustrating the position of an air intake box according to an embodiment;

FIG. 6 is a schematic structural diagram of an embodiment for showing a weld joint.

Reference numerals: 1. a base layer; 2. a base; 3. a motor; 4. a three-jaw chuck; 5. a support pillar; 6. a drive sprocket; 7. a driven sprocket; 8. a chain; 9. an arc-shaped fixing sheet; 10. locking pliers; 11. an arc-shaped buckle strip; 12. a first fixed block; 13. a second fixed block; 14. a gas delivery box; 15. a conduit; 16. a connecting cover; 17. a support; 18. a cylinder; 19. welding a joint; 20. a slide plate; 21. a support bar; 22. a support shaft; 23. a baffle plate; 24. a protective shell; 25. an arc-shaped tube.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

Referring to fig. 1 to 4, a circular seam welding device comprises a base 2, a motor 3, a chain 8, a driving sprocket 6, a driven sprocket 7, a three-jaw chuck 4, a support pillar 5, an arc-shaped fixing piece 9, an arc-shaped pipe 25 and a welding joint 19, wherein the base 2 is arranged at the bottom, the three-jaw chuck 4 is arranged at the upper part of the base 2, the three-jaw chuck 4 is fixedly connected with the base 2, the motor 3 is arranged at the upper part of the base 2 and fixedly connected with the base 2, the motor 3 is vertically arranged, one end of an output shaft of the motor 3, which is far away from the motor 3, is fixedly connected with the center of the driving sprocket 6, the chain 8 is horizontally arranged, the driving sprocket 6 and the driven sprocket 7 are respectively arranged at two ends of the chain 8 and meshed with the chain 8, the bottom of the three-jaw chuck 4 penetrates through the center of the driven sprocket 7 and, three-jaw chuck 4 is cavity three-jaw chuck 4, and logical groove has been seted up at the middle part, and support column 5 is vertical setting and is located logical inslot, and support column 5 and three-jaw chuck 4 through three jack catch fixed connection, arc pipe 25 be located arc stationary blade 9 top and with arc stationary blade 9 fixed connection, welded joint 19 be located arc pipe 25 one side with the same high position of arc pipe 25 welding seam.

Rotate through motor 3 and drive chain 8 and rotate, thereby make driven sprocket 7 drive three-jaw chuck 4 and rotate, three-jaw chuck 4 utilizes the radial movement of the three movable jack catch of equipartition on the chuck body, press from both sides tight the fixing at three-jaw chuck 4 of support column 5 lower extreme and lead to the inslot, make support column 5 rotate along with three-jaw chuck 4's rotation, make the arc stationary blade 9 on support column 5 upper portion rotate, thereby reach the arc pipe 25 pivoted effect of making with arc stationary blade 9 fixed, welded joint 19 is fixed in arc pipe 25 one side and the same high position of arc top tube welding seam, consequently, can make welded joint 19 weld the circular weld of arc venturi tube 25 through rotating arc pipe 25, reach and need not the artifical effect that just can carry out the circumferential weld.

Still include arc hasp strip 11, locking pliers 10, arc hasp strip 11 is located arc stationary blade 9 top, and 11 one ends of arc hasp strip are articulated with 9 top one ends of arc stationary blade, the 11 other ends of arc hasp strip are connected with fixed block one 12, fixed block one 12 is kept silent welded fastening with locking pliers 10 one end, arc stationary blade 9 top is not provided with fixed block two 13 with 11 fixed connection's of arc hasp strip one end, fixed block one 12 is fixed through locking pliers 10 centre gripping with fixed block two 13.

When the arc-shaped pipe 25 is placed inside the arc-shaped fixing piece 9, the arc-shaped buckle strip 11 is used for hasp fixing, one end of the arc-shaped buckle strip 11 is hinged with one end of the arc-shaped fixing piece 9, the other end of the arc-shaped buckle strip is rotated to the other end of the arc-shaped fixing piece 9, at the moment, a first fixing block 12 on the arc-shaped buckle strip 11 is contacted with a second fixing block 13 on the arc-shaped fixing piece 9, the clamping principle of the locking pliers 10 is utilized, the locking pliers 10 can obtain multiple times of force reinforcement from force decomposition through applying the lever principle twice, so that the locking pliers are more labor-saving to use, the locking pliers are characterized in that jaws can be locked and generate great clamping force to prevent clamped parts from loosening, the effect of stable clamping is achieved, one end of the locking pliers 10 is fixedly connected with the first fixing block 12, the other end of the locking pliers 10 is contacted with the second fixing block 13, and two ends of, the first fixing block 12 and the second fixing block 13 can be tightly abutted to each other to be in a fixed state, so that the arc-shaped pipe 25 is clamped and fixed through the arc-shaped fixing piece 9 and the arc-shaped buckle strip 11.

Still include baffle 23, the case 14 of sending gas, pipe 15, connect lid 16, baffle 23 is vertical setting, the case 14 of sending gas is located baffle 23 one side and with baffle 23 fixed connection, the gas of sending out in the case 14 of sending gas is the argon gas, 15 one end of pipe and the 14 fixed connection of case of sending gas, the other end passes and connects lid 16 center and with connect lid 16 fixed connection, it comprises big fifth wheel and little fifth wheel fixed connection to connect lid 16, big fifth wheel is located and is close to 15 one side of pipe, little fifth wheel is located and keeps away from 15 one side of pipe, and little fifth wheel cross-section size is unanimous with the 25 mouths of pipe of arc pipe, arc pipe 25 is fixed with connecting lid 16 joint.

Protective gas is sent out through the gas sending box 14, the protective gas is sent to the arc-shaped pipe 25 through the guide pipe 15 to protect the welding of the arc-shaped pipe 25, the connecting cover 16 and the arc-shaped pipe 25 are clamped and fixed, so that a closed environment is formed between the connecting cover 16 and the opening of the arc-shaped pipe 25, the safety gas sent out from the guide pipe 15 can enter the welding position of the arc-shaped pipe 25 and cannot overflow from the opening of the guide pipe 15, and the use efficiency of the protective gas is improved; argon is inert gas, can keep apart the air outside the weld zone through pouring into argon gas, prevents the oxidation of weld zone, and because argon gas density is big, consequently consume under the equal welding condition less, chemical property is very inactive, do not react with the metal at the high temperature, can not have a series of problems such as oxidation scaling loss, be insoluble in liquid metal, can not cause the gas pocket, and the production of argon gas, storage, cost of transportation are low, consequently choose for use argon gas as protective gas.

Motor 35IK variable speed is motor 3 just reversing, 5IK variable speed is motor 3 just reversing can adjust motor 3's rotational speed just reversing, also can adjust motor 3 just reversing, thereby can adjust motor 3's rotational speed according to the welded degree of difficulty, difficult welded arc pipe 25 can prolong the welding time of every position through the rotational speed that reduces motor 3 thereby reach required welding effect, easy welded arc pipe 25 can improve welded efficiency through the rotational speed that improves motor 3, and weld improvement welding quality to make a round trip to arc pipe 25 through setting up just reversing, the phenomenon that the transposition appears together because of following arc pipe 25 with a reverse rotation has also been prevented to pipe 15 simultaneously.

Still include basic unit 1, support 17, basic unit 1 is located 2 lower parts of base, and support 17 bottom is located 1 surface of basic unit and support 17 and 1 fixed connection of basic unit, and support 17 is the shape of falling L, and welded joint 19 is located support 17 top upper end, and welded joint 19 and support 17 top fixed connection.

Through setting up support 17 for welded joint 19 need not the manual work and holds welded joint 19 on can being fixed in support 17, has saved the manpower, and the manual work is controlled and can appear rocking the phenomenon, controls stably than the manual work through support 17 is fixed, has improved welding quality.

Still include cylinder 18, bracing piece 21, back shaft 22, slide 20, cylinder 18 is located the support 17 top and with support 17 fixed connection, cylinder 18 piston rod is kept away from cylinder 18 one end and is kept away from the arc 25 articulated with welded joint 19, welded joint 19 middle part lower extreme is fixed with slide 20, the inside spout of having seted up along slide 20 length direction of slider, bracing piece 21 is provided with two, be located support 17 upper portion welded joint 19 both sides respectively, back shaft 22 is located two bracing piece 21 tops and with bracing piece 21 fixed connection, back shaft 22 passes slide 20 and with slide 20 clearance connection.

The welding joint 19 is rotated by the movement of the piston rod of the air cylinder 18, so that the orientation of the welding joint 19 is adjusted, the arc-shaped pipe 25 can be welded by the welding joint 19 at the optimal position and angle, and the welding quality is improved.

The welding device further comprises a protective shell 24, the protective shell 24 is located around the welding joint 19, the protective shell 24 is fixedly connected with the support 17, and through the protective shell 24, spatters and harmful body splashing during welding are prevented from damaging instruments and surrounding personnel.

Claims

1. The utility model provides a circular seam welding device, its characterized in that includes base (2), motor (3), chain (8), drive sprocket (6), driven sprocket (7), three-jaw chuck (4), support column (5), arc stationary blade (9), arc pipe (25), welded joint (19), base (2) are located the bottom, three-jaw chuck (4) are located base (2) upper portion, just three-jaw chuck (4) with base (2) fixed connection, motor (3) are located base (2) upper portion and with base (2) fixed connection, motor (3) are vertical setting, motor (3) output shaft is kept away from motor (3) one end with drive sprocket (6) center fixed connection, chain (8) are the level setting, drive sprocket (6) and driven sprocket (7) are located respectively chain (8) both ends and with chain (8) meshing, three-jaw chuck (4) bottom is passed driven sprocket (7) center and with driven sprocket (7) fixed connection, support column (5) are solid cylinder, arc stationary blade (9) are located support column (5) upper portion and with support column (5) fixed connection, three-jaw chuck (4) are cavity three-jaw chuck (4), and logical groove has been seted up at the middle part, support column (5) are vertical setting and are located lead to the inslot, just support column (5) with three-jaw chuck (4) are through three jack catch fixed connection, arc pipe (25) are located arc stationary blade (9) top and with arc stationary blade (9) fixed connection, welded joint (19) are located arc pipe (25) one side with the same high position of arc pipe (25) welding seam.

2. The circular seam welding device according to claim 1, further comprising an arc-shaped buckle strip (11) and locking pliers (10), wherein the arc-shaped buckle strip (11) is located at the top of the arc-shaped fixing piece (9), one end of the arc-shaped buckle strip (11) is hinged to one end of the top of the arc-shaped fixing piece (9), the other end of the arc-shaped buckle strip (11) is connected with a first fixing block (12), the first fixing block (12) is fixed to one end of the locking pliers (10) in a jaw welding mode, the top of the arc-shaped fixing piece (9) is not fixed to one end of the arc-shaped buckle strip (11) in a fixed mode, and a second fixing block (13) is arranged at one end of the first fixing block (12) and the second fixing block (13) in a clamping mode through the locking pliers (10).

3. A circular seam welding apparatus according to claim 2, further comprising a baffle plate (23), a gas feed box (14), a duct (15), a connecting cover (16), the baffle plate (23) is vertically arranged, the air supply box (14) is positioned at one side of the baffle plate (23) and is fixedly connected with the baffle plate (23), one end of the conduit (15) is fixedly connected with the air delivery box (14), the other end of the conduit passes through the center of the connecting cover (16) and is fixedly connected with the connecting cover (16), the connecting cover (16) is formed by fixedly connecting a large connecting wheel and a small connecting wheel, the large connecting wheel is positioned at one side close to the conduit (15), the small connecting wheel is positioned at one side far away from the conduit (15), and the section size of the small connecting wheel is consistent with the pipe orifice of the arc-shaped pipe (25), and the arc-shaped pipe (25) is clamped and fixed with the connecting cover (16).

4. A circular seam welding apparatus according to claim 3, characterized in that the gas delivered from the gas delivery box (14) is argon.

5. A circular seam welding apparatus according to claim 1, characterized in that said motor (3) is a 5IK variable speed counter-rotating motor (3).

6. The circular seam welding device according to claim 1, further comprising a base layer (1) and a support (17), wherein the base layer (1) is located at the lower part of the base (2), the bottom of the support (17) is located on the surface of the base layer (1), the support (17) is fixedly connected with the base layer (1), the support (17) is in an inverted L shape, the welding joint (19) is located at the upper end of the top of the support (17), and the welding joint (19) is fixedly connected with the top of the support (17).

7. A circular seam welding apparatus according to claim 1, further comprising a cylinder (18), a support rod (21), a support shaft (22), a slide plate (20), the cylinder (18) is positioned at the top of the bracket (17) and is fixedly connected with the bracket (17), one end of a piston rod of the cylinder (18) far away from the cylinder (18) is hinged with the welding joint (19) far away from the arc-shaped pipe (25), a sliding plate (20) is fixed at the lower end of the middle part of the welding joint (19), a sliding groove is arranged in the sliding plate (20) along the length direction of the sliding block, two support rods (21) are arranged and are respectively positioned at two sides of a welding joint (19) at the upper part of the bracket (17), the supporting shaft (22) is positioned at the top of the two supporting rods (21) and is fixedly connected with the supporting rods (21), the supporting shaft (22) penetrates through the sliding plate (20) and is in clearance connection with the sliding plate (20).

8. A circular seam welding device according to claim 1, characterized in that it further comprises a protective shell (24), said protective shell (24) being positioned around said weld joint (19) and said protective shell (24) being fixedly connected to said support (17).