Linear welding device

Abstract

The utility model discloses a linear welding device, and belongs to the technical field of steel structure machining. The device comprises a support, a welding gun, a wire feeding structure and a recovery suction nozzle, the support comprises a top plate, a rear side plate, a front side plate, a fixing rod, two bottom edges and two welding seam tracking pulleys, the wire feeding structure is located between the front side plate and the rear side plate and fixed to the front side plate or the rear side plate, and the fixing rod is fixed between the front side plate and the rear side plate. The welding gun is adjustably arranged on the fixing rod, and the recycling suction nozzle is fixed to the rear side of the rear side plate. A plurality of through holes are formed in the front side plate, and a welding flux feeding pipe and a wire forwards penetrate out of the different through holes; the two bottom edges are respectively positioned at the bottom ends of the left and right sides of the front side plate; the front and rear ends of the bottom edge are respectively fixed at the bottom ends of the corresponding sides of the front side plate and the rear side plate; the two weld tracking pulleys are respectively arranged at the front and rear ends of the bottom edge; the two ends of the tracking pulley are arranged at the corresponding ends of the two bottom edges respectively. And the lower ends of the front side plate and the rear side plate are provided with notches for accommodating the corresponding welding seam tracking pulleys.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure processing technology, and specifically relates to a straight-line welding device. Background Technology

[0002] In the manufacturing process of large steel structure equipment, there is a large amount of welding work on I-beams and box girders. These structures mainly consist of long and straight fillet welds. For the same fillet welds, submerged arc welding is often used. In the existing technology, when welding fillet welds using a submerged arc welding machine, in order to achieve a good weld, the position of the welding wire tip and the weld to be welded is required to be very precise. The application and recovery of flux and the feeding of the welding wire are also extremely critical.

[0003] For example, patent application number CN201720244149.3 discloses a box girder submerged arc welding machine, including a Y-axis guide rail and a frame slidably mounted on the Y-axis guide rail. The frame is provided with an X-axis sliding arm, and a welding device is slidably mounted on the X-axis sliding arm. The welding device includes a hopper for storing flux, a wire feeding group, and a welding carriage that can roll on the box girder. The welding carriage is provided with a welding torch. The wire feeding group is mounted on the welding carriage, and the output end of the wire feeding group is connected to the welding torch. The output end of the hopper is mounted on the welding carriage and is located at the front end of the welding torch in the welding forward direction. The hopper is provided with a flux recovery group, and the input end of the recovery group is located at the rear end of the welding carriage.

[0004] For example, patent application number CN201220479957.5 discloses a wire feeding steering structure for submerged arc gantry welding. This steering structure is installed at the lower part of the welding arm of the submerged arc gantry welding machine and includes a welding arm support frame, a wire feeding motor, a welding torch tube, a welding torch sleeve, a flux storage bin, and a flux box. A hydraulic device piston rod is installed at the lower part of the welding arm support frame and is hydraulically driven to move up and down. A swing bracket is hinged to the middle of the piston rod of the hydraulic device via a bearing. A wire feeding motor is installed on the swing bracket and drives the welding wire to be fed to the welding torch tube fixed at the lower end of the swing bracket. A welding torch sleeve is coaxially fitted outside the welding torch tube. A flux storage bin is coaxially fixed at the upper part of the welding arm, and a flux box is installed at the lower end of the flux storage bin. The flux box is connected to the welding torch sleeve through a feeding pipe.

[0005] In the prior art, as shown in patent CN201220479957.5, the roller and welding gun are separate structures, resulting in a large size of the welding device; in addition, the welding gun cannot be adjusted, resulting in low adaptability. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a linear welding device that integrates a weld seam tracking pulley and a welding torch within a support frame, resulting in a more compact structure and reduced volume. Furthermore, the welding torch is adjustable, offering greater adaptability. The technical solution is as follows:

[0007] This utility model provides a linear welding device, which includes a support 1 and a welding torch 2, a wire feeding structure 3, and a recovery nozzle 4 on it. The wire feeding structure 3 is located directly above the welding torch 2, and the recovery nozzle 4 is located directly behind the welding torch 2. The welding torch 2 is equipped with a flux inlet pipe 5 and a guide wire 6. The support 1 includes a top plate 11 arranged in a front-rear direction, a rear side plate 12 at the lower rear end of the top plate 11, a front side plate 13 at the middle of the lower side of the top plate 11, a fixing rod 14 arranged in a front-rear direction, two bottom edges 15 arranged side by side, and two weld seam tracking pulleys 16 arranged side by side. The front side plate 13 and the rear side plate 12 are arranged side by side. The wire feeding structure 3 is located between the front side plate 13 and the rear side plate 12 and is fixed to the front side plate 13 or the rear side plate 12. The fixing rod 14 is fixed to the lower part of the front side plate 13 and the lower part of the rear side plate 12. Between the parts, the welding torch 2 is located between the front side plate 13 and the rear side plate 12 and is adjustablely mounted on the fixing rod 14. The recovery suction nozzle 4 is fixed to the rear side of the rear side plate 12. The front side plate 13 has multiple through holes 19 arranged vertically. The flux feed pipe 5 is located on the front side of the welding torch 2. The flux feed pipe 5 and the wire 6 pass forward through different through holes 19. Two bottom edges 15 are located at the bottom ends of the left and right sides of the front side plate 13, respectively. The bottom edges 15 are arranged in the front-back direction, and their front and rear ends are fixed to the bottom ends of the corresponding sides of the front side plate 13 and the rear side plate 12, respectively. Two weld seam tracking pulleys 16 are respectively located at the front and rear ends of the bottom edges 15. The tracking pulleys 16 are arranged in the left-right direction, and their ends are respectively located at the corresponding ends of the two bottom edges 15. The lower ends of the front side plate 13 and the rear side plate 12 are provided with notches 18 to accommodate the corresponding weld seam tracking pulleys 16.

[0008] Preferably, in this embodiment of the present invention, the top plate 11 is a rectangular plate, with a fixing seat 7 at its front end along the vertical direction, a strip-shaped reinforcing rib 31 on its upper side along the front-back direction, and a strip-shaped hole for the welding wire 9 to pass through on its upper side along the front-back direction; an angled reinforcing rib 32 is provided between the fixing seat 7 and the upper front side of the front side plate 13 along the front-back direction.

[0009] Specifically, in this embodiment of the present invention, the through hole 19 is a round hole and there are three of them; the three through holes 19 are located at the upper, middle and lower parts of the front side plate 13 respectively, the wire 6 passes forward from the upper through hole 19, and the flux feed pipe 5 passes forward from the middle through hole 19.

[0010] Furthermore, in this embodiment of the present invention, the front side plate 13 and the rear side plate 12 are both vertically arranged rectangular plates and are provided with fixing ears 17 on the lower left or lower right side; the two ends of the fixing rod 14 are respectively fixed on the two fixing ears 17.

[0011] Furthermore, in this embodiment of the present invention, the welding torch 2 is adjustablely fixed to the fixing rod 14 by means of a fixing member 21. The fixing member 21 is provided with a vertical sleeve and a horizontal sleeve. The vertical sleeve and the horizontal sleeve are respectively arranged vertically and front-backward and respectively cooperate with the upper part of the welding torch 2 and the fixing rod 14. The vertical sleeve is located to the left or right of the horizontal sleeve. The upper part of the welding torch 2 is inserted into the vertical sleeve and locked and fixed to the fixing member 21. The horizontal sleeve is sleeved on the fixing rod 14 and fixed to the fixing rod 14 by a locking bolt 22. The locking bolt 22 is arranged in the left-right direction and is located on the side of the horizontal sleeve away from the vertical sleeve.

[0012] In this embodiment of the invention, the weld seam tracking pulley 16 has a coaxial annular groove on its circumference, and its lower side is flush with the lower end of the welding wire 9; the annular groove is directly opposite the lower end of the welding gun 2, and its width is 1.0-2.5cm and its depth is greater than 0.8cm.

[0013] Specifically, in this embodiment of the invention, the wire feeding structure 3 is fixed to the upper rear side of the front side plate 13.

[0014] In this embodiment of the present invention, the notch 18 is a vertically arranged rectangular notch; the left and right sides of the weld seam tracking pulley 16 are respectively located on the adjacent inner sides of the corresponding side of the notch 18, and it is located in the notch 18, with the end of its rotating shaft located on the lower side of the corresponding bottom edge 15.

[0015] Furthermore, in this embodiment of the present invention, a support frame 8 is provided on the rear side of the rear side plate 12, and the recycling nozzle 4 is fixed on the support frame 8 and the distance between it and the rear side plate 12 is greater than 2cm.

[0016] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a linear welding device that integrates the weld seam tracking pulley and the welding torch in the bracket, making the structure more compact and reducing the volume. At the same time, it protects and isolates the welding torch (which is live) and the wiring is reasonable. In addition, the welding torch can be adjusted (up and down and angle), making it more adaptable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the linear welding device in an embodiment of this utility model;

[0018] Figure 2 This is a structural diagram of the front panel.

[0019] In the diagram: 1. Support bracket, 2. Welding torch, 3. Wire feeding structure, 4. Recycling nozzle, 5. Flux feed pipe, 6. Wire, 7. Fixing base, 8. Support frame, 9. Welding wire;

[0020] 11 Top plate, 12 Rear side plate, 13 Front side plate, 14 Fixing rod, 15 Bottom edge, 16 Weld tracking pulley, 17 Fixing lug, 18 Notch, 19 Through hole;

[0021] 21 Fasteners, 22 Locking bolts;

[0022] 31. Strip stiffeners; 32. Angular stiffeners. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] See Figure 1-2 Example 1 provides a linear welding device, which includes a support 1 and a welding torch 2, a wire feeding structure 3, and a recovery nozzle 4 on it. The wire feeding structure 3 is located directly above the welding torch 2 and is used to feed the wire downwards; it is located on the upper part of the support 1. The recovery nozzle 4 is located directly behind the welding torch 2 and is used to recover the flux. It is connected to an upper hopper via a pipe, and its lower end is located adjacent to and above the lower end of the welding wire 9; it is located on the rear side of the support 1. The welding torch 2 is equipped with a flux inlet pipe 5 (for conveying flux) and a wire 6 (for conducting electricity), etc., and is located on the lower part of the support 1.

[0026] The support frame 1 includes a top plate 11, a rear side plate 12, a front side plate 13, a fixing rod 14, a support frame 8, two bottom edges 15, and two weld seam tracking pulleys 16. The top plate 11 is arranged in the front-rear direction and is specifically a rectangular plate. Its front end has a fixing seat 7 (connected to the corresponding lifting plate) in the vertical direction. Its upper side has strip-shaped reinforcing ribs 31 (specifically, vertically arranged strip plates) in the front-rear direction, and its upper side has strip-shaped holes for the welding wire 9 to pass through. An angled reinforcing rib 32 (specifically, a right-angled plate) is provided between the fixing seat 7 and the upper front side of the front side plate 13 in the front-rear direction.

[0027] The front side plate 13 and the rear side plate 12 are respectively located at the lower middle and lower rear end of the top plate 11, arranged side by side. Both are vertically oriented rectangular plates, and each has a fixing lug 17 (arranged along the left-right direction) on its lower left or right side. The front side plate 13 has multiple through holes 19 arranged vertically side by side. The support frame 8 is located at the rear middle of the rear side plate 12 along the front-back direction. The collection nozzle 4 is fixed to the rear end of the support frame 8. The rear side plate 12 may also have multiple through holes 19 arranged vertically side by side.

[0028] The wire feeding structure 3 is located between the front side plate 13 and the rear side plate 12 and is fixed on the front side plate 13 or the rear side plate 12.

[0029] The fixing rod 14 is arranged in the front-rear direction and is fixed between the lower part of the front side plate 13 and the lower part of the rear side plate 12. Its front and rear ends are respectively fixed on two fixing ears 17, and it is a round rod.

[0030] The welding torch 2 is located between the front side plate 13 and the rear side plate 12, and is adjustablely mounted on the fixing rod 14, with its lower part located between the two bottom edges 15. The flux inlet pipe 5 is located on the front side of the welding torch 2, and is arranged obliquely from top to bottom and rearward. The flux inlet pipe 5 and the wire 6 pass forward through different through holes 19.

[0031] The two bottom edges 15 are arranged side by side and are located at the bottom ends of the left and right sides of the front side plate 13, respectively. The bottom edges 15 are arranged in the front-back direction, and their front and rear ends are fixed to the bottom ends of the corresponding sides (left or right) of the front side plate 13 and the rear side plate 12, respectively.

[0032] Two weld seam tracking pulleys 16 are arranged side by side, one at the front and one at the rear of the bottom edge 15. The tracking pulleys 16 are arranged horizontally, with their ends located at corresponding ends (front or rear) of the two bottom edges 15. The lower ends of both the front side plate 13 and the rear side plate 12 have notches 18 to accommodate the corresponding weld seam tracking pulleys 16. Specifically, the weld seam tracking pulley 16 has a coaxial annular groove (allowing the weld joint and residual flux to pass through), its lower side flush with the lower end of the welding wire 9. The annular groove is directly opposite the lower end of the welding torch 2. The notch 18 is a vertically oriented rectangular notch. The left and right sides of the weld seam tracking pulley 16 are located on the adjacent inner sides of the corresponding sides of the notch 18, within the notch 18, with the end of its rotating shaft located on the lower side of the corresponding side (left or right) of the bottom edge 15.

[0033] Example 2

[0034] See Figure 1-2 Example 2 provides a linear welding device, the structure of which is basically the same as that of Example 1, except that: in this example, the welding torch 2 is adjustablely fixed to the fixing rod 14 by a fixing member 21. The fixing member 21 is provided with a vertical sleeve and a horizontal sleeve, which are arranged vertically and forward and backward respectively, and they cooperate with the upper part of the welding torch 2 and the fixing rod 14 respectively. The vertical sleeve is located to the left or right of the horizontal sleeve. The upper part of the welding torch 2 is inserted into the vertical sleeve and locked (it can be adjusted up and down by loosening) and fixed to the fixing member 21. The horizontal sleeve is sleeved on the fixing rod 14 and fixed to the fixing rod 14 by a locking bolt 22 (it can be adjusted by loosening). The locking bolt 22 is arranged in the left and right direction and is located on the side of the horizontal sleeve away from the vertical sleeve.

[0035] Example 3

[0036] Example 3 provides a straight welding device, whose structure is basically the same as that of Example 2, except that: in this example, the wire feeding structure 3 is fixed on the upper rear side of the front side plate 13, the two fixing ears 17 are respectively located on the right side of the front side plate 13 and the right side of the rear side plate 12, and the vertical sleeve is located on the left side of the horizontal sleeve.

[0037] Example 4

[0038] See Figure 2 Example 4 provides a linear welding device, the structure of which is basically the same as that of Example 1, except that the through holes 19 in this example are round holes and there are three of them. The three through holes 19 are located at the upper, middle and lower parts of the front side plate 13, respectively. The wire 6 passes forward from the upper through hole 19, and the flux feed pipe 5 passes forward from the middle through hole 19.

[0039] Example 5

[0040] Example 5 provides a linear welding device, the structure of which is basically the same as that of Example 1, except that: the width of the annular groove in this example is 1.0-2.5cm, and its depth is greater than 0.8cm; the diameter of the circular hole is greater than 1.5cm. The distance between the recovery nozzle 4 and the rear side plate 12 is greater than 2cm (to ensure that the flux cools slightly).

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A linear welding device, comprising a support (1) and a welding torch (2), a wire feeding structure (3), and a recovery nozzle (4) thereon, wherein the wire feeding structure (3) is located directly above the welding torch (2), the recovery nozzle (4) is located directly behind the welding torch (2), and the welding torch (2) is provided with a flux inlet pipe (5) and a wire (6); characterized in that, The bracket (1) includes a top plate (11) arranged in the front-rear direction, a rear side plate (12) at the lower rear end of the top plate (11), a front side plate (13) at the middle of the lower side of the top plate (11), a fixing rod (14) arranged in the front-rear direction, two bottom edges (15) arranged side by side, and two weld seam tracking pulleys (16) arranged side by side. The front side plate (13) and the rear side plate (12) are arranged side by side. The wire feeding structure (3) is located between the front side plate (13) and the rear side plate (12) and is fixed on the front side plate (13) or the rear side plate (12). The fixing rod (14) is fixed between the lower part of the front side plate (13) and the lower part of the rear side plate (12). The welding gun (2) is located between the front side plate (13) and the rear side plate (12) and is adjustablely mounted on the fixing rod (14). The recovery nozzle (4) is fixed. The front side plate (13) is provided with multiple through holes (19) arranged vertically on the rear side plate (12). The flux feed pipe (5) is located on the front side of the welding gun (2). The flux feed pipe (5) and the wire (6) pass forward through different through holes (19). The two bottom edges (15) are located at the bottom ends of the left and right sides of the front side plate (13). The bottom edges (15) are arranged in the front-back direction, and their front and rear ends are fixed to the bottom ends of the corresponding sides of the front side plate (13) and the rear side plate (12). Two weld seam tracking pulleys (16) are respectively located at the front and rear ends of the bottom edges (15). The tracking pulleys (16) are arranged in the left-right direction and their two ends are respectively located at the corresponding ends of the two bottom edges (15). The lower ends of the front side plate (13) and the rear side plate (12) are provided with notches (18) to accommodate the corresponding weld seam tracking pulleys (16).

2. The linear welding apparatus according to claim 1, characterized in that, The top plate (11) is a rectangular plate with a fixed seat (7) at its front end along the vertical direction, and a strip-shaped reinforcing rib (31) along the front and back direction on its upper side. A strip-shaped hole for the welding wire (9) to pass through is provided along the front and back direction on its upper side. An angle-shaped reinforcing rib (32) is provided between the fixed seat (7) and the upper front side of the front plate (13) along the front and back direction.

3. The linear welding apparatus according to claim 1, characterized in that, The through holes (19) are round holes and there are three of them; the three through holes (19) are located at the upper, middle and lower parts of the front side plate (13) respectively, the wire (6) passes forward from the upper through hole (19), and the flux feed pipe (5) passes forward from the middle through hole (19).

4. The linear welding apparatus according to claim 1, characterized in that, The front side plate (13) and the rear side plate (12) are both vertically arranged rectangular plates and are provided with fixing ears (17) on the lower left or lower right side; the two ends of the fixing rod (14) are respectively fixed on the two fixing ears (17).

5. The linear welding apparatus according to claim 1, characterized in that, The welding torch (2) is adjustablely fixed to the fixing rod (14) by a fixing member (21). The fixing member (21) is provided with a vertical sleeve and a horizontal sleeve. The vertical sleeve and the horizontal sleeve are respectively arranged vertically and front-backward and cooperate with the upper part of the welding torch (2) and the fixing rod (14). The vertical sleeve is located to the left or right of the horizontal sleeve. The upper part of the welding torch (2) is inserted into the vertical sleeve and locked and fixed to the fixing member (21). The horizontal sleeve is sleeved on the fixing rod (14) and fixed to the fixing rod (14) by a locking bolt (22). The locking bolt (22) is arranged in the left-right direction and is located on the side of the horizontal sleeve away from the vertical sleeve.

6. The linear welding apparatus according to claim 1, characterized in that, The weld seam tracking pulley (16) has a coaxial annular groove on its circumference, and its lower side is flush with the lower end of the welding wire (9); the annular groove is directly opposite the lower end of the welding gun (2), and its width is 1.0-2.5cm and its depth is greater than 0.8cm.

7. The linear welding apparatus according to claim 1, characterized in that, The wire feeding structure (3) is fixed to the upper rear side of the front side plate (13).

8. The linear welding apparatus according to claim 1, characterized in that, The notch (18) is a vertically arranged rectangular notch; the left and right sides of the weld tracking pulley (16) are respectively located on the adjacent inner sides of the corresponding side of the notch (18), and it is located in the notch (18), with the end of its rotating shaft located on the lower side of the corresponding side bottom edge (15).

9. The linear welding apparatus according to claim 1, characterized in that, The rear side plate (12) is provided with a support frame (8), and the recycling nozzle (4) is fixed on the support frame (8) and the distance between it and the rear side plate (12) is greater than 2cm.

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