CN215393401U

CN215393401U - Adjustable welding gun support and welding device

Info

Publication number: CN215393401U
Application number: CN202121991521.XU
Authority: CN
Inventors: 雷作坚
Original assignee: Borunte Robot Co Ltd
Current assignee: Borunte Robot Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-04
Anticipated expiration: 2031-08-23

Abstract

An adjustable welding gun support comprises a mounting seat, a fixed connecting rod, an adjusting connecting rod and a welding gun support; the fixed connecting rod is fixedly connected with the mounting seat; the adjusting connecting rod stretches along the length direction of the fixed connecting rod; the welding gun support moves along with the adjusting connecting rod; the mounting seat rotates around a shaft and drives the fixed connecting rod, the adjusting connecting rod and the welding gun support to rotate along with the fixed connecting rod, so that the welding gun head fixed on the welding gun support and the mounting seat rotate coaxially; the extending direction of the fixed connecting rod is not parallel to the axis of the rotating shaft of the mounting seat. A welding device is also disclosed. Compared with the prior art, the adjustable welding gun support and the welding device do not need to use a positioner when welding the pipe fitting, so that the equipment cost is saved.

Description

Adjustable welding gun support and welding device

Technical Field

The utility model relates to the technical field of welding, in particular to an adjustable welding gun support and a welding device.

Background

In the prior art, welding processing generally accompanies high temperature and high heat, various harmful gases are released, and certain danger is easily brought to operators, so that the trend of replacing manual welding processing by using robots is increasing.

Referring to fig. 1, patent publication No. CN209551001U discloses a full-automatic welding device for stainless steel thin-wall pipes and flanges, which comprises a long circular pipe positioner 1 and a six-axis welding robot 2. The long circular tube positioner 1 comprises a pushing mechanism 3, a middle positioning mechanism 4 and a pressing rotating mechanism 5. The pushing mechanism 3, the middle positioning mechanism 4 and the pressing and rotating mechanism 5 are sequentially arranged along the axial direction of the long steel pipe 6 to be welded. The pushing mechanism 3 is positioned at one end of the long steel pipe 6 to push the long steel pipe 6 to move along the axial direction. The middle positioning mechanism 4 supports along the radial direction of the long steel pipe 6. And when the downward-pressing rotating mechanism 5 is pressed downward, the downward-pressing rotating mechanism is connected with the outer circumference of the long steel pipe 6 and drives the long steel pipe 6 to rotate around the axis of the long steel pipe. Six welding robot 2 are located long steel pipe 6 is other pushing equipment 3 with under the combined action of pushing down slewing mechanism 5, long steel pipe 6 for six welding robot 2 take place axial displacement and pivoting, six welding robot 2 is right long steel pipe 6's different positions weld.

From above-mentioned welding set can see out, when using the robot to carry out the pipe fitting welding among the prior art, just fix a position the welding position through the removal of welding robot, then require welding robot's motion precision higher, consequently often need cooperate the use of machine of shifting to guarantee welding precision and stability. However, the use of the positioner not only increases the equipment cost, but also when the diameter of the pipe fitting changes, different clamps need to be replaced on the positioner to clamp the steel pipe, and only a single steel pipe can be clamped and welded at each time, thereby affecting the processing efficiency and convenience.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide an adjustable welding gun support, which can realize the welding of pipe fittings without a positioner.

The utility model is realized by the following technical scheme:

an adjustable welding gun support comprises a mounting seat, a fixed connecting rod, an adjusting connecting rod and a welding gun support; the fixed connecting rod is fixedly connected with the mounting seat; the adjusting connecting rod stretches along the length direction of the fixed connecting rod; the welding gun support moves along with the adjusting connecting rod; the mounting seat rotates around a shaft and drives the fixed connecting rod, the adjusting connecting rod and the welding gun support to rotate along with the fixed connecting rod, so that the welding gun head fixed on the welding gun support and the mounting seat rotate coaxially; the extending direction of the fixed connecting rod is not parallel to the axis of the rotating shaft of the mounting seat.

Compared with the prior art, the adjustable welding gun support realizes welding deflection by replacing rotation of the positioner through rotation of the adjustable welding gun support, and meanwhile, the adjustable welding gun support is provided with the adjustable adjusting connecting rod and can be suitable for welding pipe fittings with different pipe diameters.

Further, the welding gun device also comprises a welding gun connecting rod; one end of the welding gun connecting rod is fixedly arranged on the adjusting connecting rod, the welding gun support is hinged to the welding gun connecting rod, the axis of a hinge shaft of the welding gun support is perpendicular to the axis of the rotating shaft of the mounting seat and the extending direction of the fixing connecting rod, and the welding gun connecting rod is arranged to facilitate adjustment of the spraying angle of the welding gun so as to realize different penetration depth and guarantee the strength of a welding seam.

Further, the fixed connecting rod is sleeved outside the adjusting connecting rod; a fixing groove is formed in the side face of one side of the fixing connecting rod; the side face, opposite to the fixing groove, of the adjusting connecting rod is provided with a screw hole, so that a screw can penetrate through the fixing groove and then be screwed in, welding is prevented from being affected due to displacement of the adjusting connecting rod in the welding process, and welding stability is improved.

Furthermore, be carved with the scale on adjusting connecting rod one side, its minimum scale is 1mm, and the control range is 0 to 150mm to adjust according to pipe fitting pipe diameter.

Further, still including be located the mount pad with the anticollision sensor between the fixed connecting rod, when welder and pipe fitting bump, can in time send out the signal, improve welding quality and security.

Further, the welding gun support is provided with a fixed lock ring for fixing a welding gun; the axis of the fixed lock ring and the axis of the rotating shaft of the mounting seat are positioned in the same plane and are not parallel to each other, so that the fixation and the adjustment of welding are facilitated.

Further, a plane perpendicular to the axis of the rotating shaft of the mounting seat is set as a horizontal plane; the initial included angle between the axis of the fixed lock ring and the horizontal plane is 45 degrees, and along with the rotation of the welding gun support, the axis of the fixed lock ring rotates within a range of +/-90 degrees relative to the horizontal plane by taking 10 degrees as a unit, so that the adjustment can be carried out according to the actual welding condition.

In addition, the utility model also provides a welding device, and the technical scheme is as follows:

comprises a robot and the adjustable welding gun bracket; the tail end of the robot rotates around a shaft; the mounting seat of the adjustable welding gun support is fixedly connected with the tail end of the robot and rotates coaxially with the robot.

Compared with the prior art, the welding device provided by the utility model has the advantages that the robot is matched with the adjustable welding gun support, the robot drives the adjustable welding gun support to move up and down and rotate relative to the pipe fitting, and the pipe fitting welding without a positioner is realized. And along with the removal of robot to adjustable welder support, can need not to change and weld many pipe fittings simultaneously, improve work efficiency.

Further, still include welder, the welding is installed on the welder support.

Further, the rotating shaft at the tail end of the robot is vertical to the horizontal plane.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a fully automatic welding device for a stainless steel thin-wall pipeline and a flange in the prior art;

FIG. 2 is a schematic view of the overall structure of the welding device of the present invention during welding;

FIG. 3 is a schematic view of the overall structure of an adjustable welding gun support projected from one side according to the present invention;

FIG. 4 is a schematic view of the overall structure of an adjustable welding gun support projected from another position in the present invention;

fig. 5 is a schematic view of the welding apparatus of the present invention during welding in one embodiment.

Detailed Description

Specifically, referring to fig. 2, the welding apparatus of the present invention is disposed beside a worktable 100, and includes a robot 10, an adjustable welding torch support 20, and a welding torch 30. The adjustable gun carriage 20 is disposed at the end of the robot 10 and pivots therewith. The welding gun 30 is fixed to the adjustable gun support 20 and rotated therewith to weld the pipe 200. The pipe fitting 200 is placed on the table top of the workbench 100, and the axis of the pipe fitting is perpendicular to the table top of the workbench 100. The adjustable welding gun support 20 can be extended and retracted along the direction forming an included angle with the axis of the pipe fitting 200. In this embodiment, the top of the worktable 100 is parallel to the horizontal plane, and the plane perpendicular to the horizontal plane is a vertical plane.

In the present embodiment, the robot 10 is a six-axis robot, and includes a base 11 disposed on a horizontal plane, and a swivel base 12, a large arm 13, a small arm 14, and a tip 15 connected in sequence. The rotary seat 12 is fixed on the base 11 and rotates around an axis vertical to the horizontal plane. The large arm 13 is located on one side of the swivel base 12 and swings about an axis parallel to the horizontal plane. The small arm 14 is mounted at the end of the large arm 13 remote from the swivel base 12 and swings about an axis parallel to the horizontal plane. The end 15 is hinged to the end of the small arm 14 away from the large arm 13, and the hinged shaft is parallel to the horizontal plane and rotates around the axis perpendicular to the horizontal plane.

Referring to fig. 3 and 4, the adjustable welding gun support 20 includes a mounting base 21, a fixing link 22, an adjusting link 23, a welding gun link 24 and a welding gun support 25.

The mounting base 21 is fixed at an end of the tail end 15 far away from the small arm 14, and includes a mounting flange 211 and a mounting block 212 fixedly connected to the mounting flange 211. The mounting flange 211 is fixed to the end 15 with an axis parallel to the axis of rotation of the end 15 so that the mounting block 212 rotates with the end 15. Preferably, the axis of the mounting flange 211 and the rotation axis of the end 15 coincide with each other, and the mounting seat 21 and the end 15 rotate coaxially.

The fixed link 22 is fixed on the mounting block 212, and the extending direction of the fixed link is not parallel to the rotating axis of the mounting seat 21. In this embodiment, the fixed link 22 extends in a direction parallel to the horizontal plane.

The adjusting connecting rod 23 is movably connected with the fixed connecting rod 22, and the adjusting connecting rod 23 extends and retracts along the extending direction of the fixed connecting rod 22. In this embodiment, the cross-sectional shapes of the fixed link 22 and the adjusting link 23 are rectangular, the fixed link 22 is hollow and has an opening at one end in the length direction, and the fixed link 22 is sleeved on the outer side of the adjusting link 2. A fixing groove 211 is formed on one side surface of the fixing connecting rod 22. A plurality of screw holes 231 are formed in the side surface of the adjusting connecting rod 23 facing the fixing groove 211, and the screw holes 231 are arranged at uniform intervals along the extending direction of the adjusting connecting rod 23. After the screw is screwed into the screw hole 231, the screw presses the fixing groove 211 to limit the adjustment link 23 from sliding relative to the fixing link 22, thereby preventing the adjustment link 23 from being displaced during the machining process. Further, a side surface of the adjusting connecting rod 23 is engraved with a scale, the minimum scale of the scale is 1mm, and the adjusting range is 0 to 150mm, so that the adjusting is performed when the pipe fittings 200 with different pipe diameters are welded.

The welding gun connecting rod 24 is fixed at one end of the adjusting connecting rod 23 far away from the mounting seat 21, and is far away from or close to the mounting seat 21 along with the adjusting connecting rod 23. The welding gun support 25 is hinged to the welding gun connecting rod 24, and the axis of the hinged shaft is perpendicular to the axis of the rotating shaft of the mounting seat 21 and the extending direction of the fixed connecting rod 22. The welding gun 30 is fixed to the welding gun support 25 and then swung with respect to the welding gun link 24 to adjust the angle of the welding gun 30 with respect to the pipe 200. Preferably, the welding gun support 25 rotates within a range of ± 90 ° by taking 10 ° as a unit, and the angle between the jet flame of the welding gun 30 and the pipe fitting 200 is changed by changing the angle of the welding gun support 25 relative to the pipe fitting 200, so as to realize the penetration of workpieces with different plate and pipe thicknesses and ensure the strength of a welding seam. In the present embodiment, the welding gun connecting rod 24 is provided with a right angle segment 241 and a curved segment 242. The right-angle segment 241 is fixedly connected to the adjusting link 23, and the extending direction of the right-angle segment is perpendicular to the extending direction of the adjusting link 23, i.e. parallel to the axis of the rotation shaft of the mounting base 21. The curved section 242 is connected to an end of the right-angle section 241 remote from the adjusting link 23, and the welding gun support 25 is hinged to the curved section 242. The right-angle section 241 extends in a direction perpendicular to the horizontal plane in the axial projection of the joint shaft of the welding gun support 25 and the welding gun connecting rod 24; the curved section 242 is not parallel to the extending direction of the right-angle section 241. The curved section 242 is followed right angle section 241 to mount pad 21 axis direction extends, and follows curved section 242 extending direction, curved section 242 reaches mount pad 21's vertical distance is bigger and bigger, curved section 242's extending direction is the acute angle with the contained angle of horizontal plane. Preferably, the extending direction of the bending section 242 forms an angle of 45 ° with the horizontal plane.

The welding gun holder 25 is provided with a fixing lock ring 251 and a welding wire holder 252. The fixing lock ring 251 may be opened and locked by screws along a circumferential direction thereof, and the welding torch 30 is placed in the fixing lock ring 251 to be locked. The axis of the lock ring 251 and the axis of the mounting seat 21 are in the same vertical plane. In the vertical plane, the axis of the lock ring 251 is not parallel to the axis of the mount 21. Preferably, the extension direction of the fixing link 22 is parallel to 2 a vertical plane on which the axis of the fixing lock ring 251 is located, for easy adjustment. The wire holder 252 fixes and clamps the welding wire with the fixing ring 251 or the welding gun 30. In this embodiment, the axis of the lock ring 251 forms an angle of 45 ° with the horizontal plane, and is rotatable in a range of ± 90 ° by 10 ° about the hinge axis with the welding gun link 24. The welding gun bracket 25 is fixed and rotates coaxially with the mounting base 21.

Further, an anti-collision sensor 40 is included, wherein the anti-collision sensor 40 is located between the mounting block 212 and the fixed link 22, and is electrically connected to the control module of the robot 10 and the welding gun 30. When the welding gun 30 collides with other equipment, the anti-collision sensor 40 is triggered and transmits an electric signal to the robot 10, the welding gun 30 stops welding, and the robot 10 drives the welding gun 30 to leave the pipe fitting 200.

Based on the above structure, the welding process is specifically described as follows, including the following steps:

referring to fig. 5, in the present embodiment, the welding gun 30 is an argon arc welding gun, and the pipe 200 is inserted with a plurality of branch pipes 201 to be welded to the main body of the pipe 200.

Step S10: the pipe fitting 200 is arranged on the top surface of the workbench 100, and the axis of the pipe fitting is perpendicular to the top surface of the workbench 100.

Step 20: the mounting seat 21 is mounted to the tip 15 such that the axes of the two coincide.

Step S30: and rotating the welding gun 30 around a connecting shaft between the welding gun support 25 and the welding gun connecting rod 24 to adjust the flame spraying direction to form an included angle of 45 degrees with the horizontal plane, and also adjusting the included angle of the flame spraying direction and the horizontal plane according to the melting depth.

Step S40: and sliding the adjusting connecting rod 23 according to the pipe diameter of the branched pipe 201, and driving the welding gun 30 to move, so that the horizontal distance from the gun head of the welding gun 30 to the axis of the tail end 15 is greater than or equal to the pipe diameter of the branched pipe 201.

Step S50: the robot 10 is started so that its end 15 is above one of the branch pipes 201, the tips of the welding guns 30 are aligned and the branch pipes 201 are in line with the body of the pipe 200. The rotation axis of the end 15 is coincident with the axis of the branch pipe 201.

Step S60: the tail end 15 is enabled to rotate, so that the gun head of the welding gun 30 is driven to rotate around the outer circumference of the branch pipe 201 and is welded.

Step S70: and starting the robot 10, moving the tail end 15 to a position where the rotation axis is coincident with the axis of another branch pipe 201, and repeating the step S60 until all the branch pipes 201 are welded.

Compared with the prior art, the adjustable welding gun support and the welding device have the advantages that the adjustable welding gun support is driven by the robot to rotate and move to replace a positioner to realize welding displacement, so that the equipment cost is reduced. And can be applicable to the welding of the pipe fitting of different pipe diameters and many pipe fittings, work efficiency is high, and it is convenient to use, can be applicable to different penetration welding. The welding process has high stability and good safety.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An adjustable welder support which characterized in that: the welding gun welding device comprises a mounting seat, a fixed connecting rod, an adjusting connecting rod and a welding gun support; the fixed connecting rod is fixedly connected with the mounting seat; the adjusting connecting rod stretches along the length direction of the fixed connecting rod; the welding gun support moves along with the adjusting connecting rod; the mounting seat rotates around a shaft and drives the fixed connecting rod, the adjusting connecting rod and the welding gun support to rotate along with the fixed connecting rod, so that the welding gun head fixed on the welding gun support and the mounting seat rotate coaxially; the extending direction of the fixed connecting rod is not parallel to the axis of the rotating shaft of the mounting seat.

2. The adjustable weld gun support according to claim 1, wherein: the welding gun connecting rod is also included; one end of the welding gun connecting rod is fixedly arranged on the adjusting connecting rod, the welding gun support is hinged with the welding gun connecting rod, and the axis of a hinged shaft of the welding gun support is perpendicular to the axis of the rotating shaft of the mounting seat and the extending direction of the fixing connecting rod.

3. The adjustable weld gun support according to claim 1, wherein: the fixed connecting rod is sleeved outside the adjusting connecting rod; a fixing groove is formed in the side face of one side of the fixing connecting rod; and a screw hole is formed in the side face, opposite to the fixing groove, of the adjusting connecting rod, so that a screw can penetrate through the fixing groove and then be screwed in.

4. The adjustable weld gun support according to claim 3, wherein: a scale is carved on one side face of the adjusting connecting rod, the minimum scale is 1mm, and the adjusting range is 0-150 mm.

5. The adjustable weld gun support according to claim 1, wherein: the anti-collision device further comprises an anti-collision sensor positioned between the mounting seat and the fixed connecting rod.

6. The adjustable weld gun support according to claim 2, wherein: the welding gun support is provided with a fixed lock ring for fixing a welding gun; the axis of the fixed lock ring and the axis of the rotating shaft of the mounting seat are positioned in the same plane and are not parallel to each other.

7. The adjustable weld gun support according to claim 6, wherein: setting a plane vertical to the axis of the rotating shaft of the mounting seat as a horizontal plane; the initial included angle between the axis of the fixing lock ring and the horizontal plane is 45 degrees, and along with the rotation of the welding gun support, the axis of the fixing lock ring rotates in a unit of 10 degrees within a range of +/-90 degrees relative to the horizontal plane.

8. A welding device, characterized by: comprising a robot and an adjustable welding gun support as claimed in claims 1 to 7; the tail end of the robot rotates around a shaft; the mounting seat of the adjustable welding gun support is fixedly connected with the tail end of the robot and rotates coaxially with the robot.

9. The welding device of claim 8, wherein: the welding gun is arranged on the welding gun support in a welding mode.

10. The welding device of claim 9, wherein: and a rotating shaft at the tail end of the robot is vertical to the horizontal plane.