CN114888518A

CN114888518A - Automatic welding device for variable-curvature tank body of arc fillet welding

Info

Publication number: CN114888518A
Application number: CN202210681464.8A
Authority: CN
Inventors: 陈增伟; 王庆章; 刘阳; 马涛; 韩彬; 刘博琛; 李帅
Original assignee: Hebei Hongtai Special Truck Co ltd
Current assignee: Hebei Hongtai Special Truck Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-08-12

Abstract

The invention discloses an automatic welding device for a variable-curvature tank body of arc fillet welding, which comprises a base, wherein linear rails are respectively arranged at two ends of the base, a tank body bracket is slidably arranged on the linear rails, the tank body bracket moves on the linear rails by virtue of a tank body driving motor, an annular rail is arranged in the middle of the base, a base is arranged on the annular rail, the base moves on the annular rails by virtue of a base driving motor, a sleeve is fixed on the base, a detection rod is connected in the sleeve by virtue of a first spring, a detection wheel is arranged at the top of the detection rod, a distance sensor for detecting the position of the detection rod is arranged in the sleeve, a telescopic oil cylinder is connected on the base by virtue of a rotating shaft, the telescopic oil cylinder is positioned in the direction that the detection rod rotates back to the base, the rotating shaft is connected with an angle adjusting motor, a welding gun is arranged at the top of the telescopic oil cylinder, and a controller is arranged on the base. The invention can improve the defects of the prior art, can be suitable for welding different variable-curvature tank bodies and has strong universality.

Description

Automatic welding device for variable-curvature tank body of arc fillet welding

Technical Field

The invention relates to the technical field of welding equipment, in particular to an automatic welding device for a variable-curvature tank body of arc fillet welding.

Background

Arc fillet welding refers to a fillet welding operation performed in an arc area. In the prior art, all automatic welding devices capable of realizing arc fillet welding are designed aiming at a certain type of welding seams with specific shapes, and the universality is poor. For small-batch non-standard welding seams, the cost for manufacturing corresponding welding tools is too high, and only manual welding can be performed.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic welding device for arc fillet welding variable-curvature tank bodies, which can overcome the defects of the prior art, can be suitable for welding different variable-curvature tank bodies and has strong universality.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

The utility model provides a variable camber jar body automatic welder of arc fillet welding, which comprises a base, sharp track is installed respectively at the both ends of base, slidable mounting has jar body bracket on the straight track of straight track, jar body bracket relies on jar body driving motor to move on sharp track, the annular track is installed to the centre of base, install the base on the annular track, the base relies on base driving motor to move on the annular track, be fixed with the sleeve on the base, there is the gauge stick through first spring coupling in the sleeve, the gauge wheel is installed at the top of gauge stick, install the distance sensor who is used for detecting the gauge stick position in the sleeve, be connected with flexible hydro-cylinder through the rotation axis on the base, flexible hydro-cylinder is located the direction that the gauge stick is rotatory dorsad, the rotation axis is connected with angle accommodate motor, welder is installed at flexible hydro-cylinder top, install the controller on the base, the controller respectively with driving motor, the circular arc fillet welding machine, The distance sensor, the telescopic oil cylinder and the angle adjusting motor are in communication connection and used for controlling the position of the tank body, the angle of the welding gun and the distance between the welding gun and the tank body.

Preferably, the tank bracket comprises a bottom plate which is in sliding connection with the linear track, a support position adjusting track is arranged on the bottom plate along the direction perpendicular to the linear track, three sliding blocks are installed on the support position adjusting track, each sliding block moves on the support position adjusting track by means of a sliding block driving motor, a first support oil cylinder is installed at the top of each sliding block, a flexible strip is connected between every two adjacent first support oil cylinders, a sucking disc is installed at the top of each first support oil cylinder, a bottom support is connected onto the bottom plate, a second support oil cylinder is installed between the bottom support and the bottom plate, a pressing rod is connected onto the bottom support, a sucking disc is installed at the free end of the pressing rod, a third support oil cylinder is installed between the bottom support and the pressing rod, the support position adjusting track is located on one side, close to the circular track, of the bottom plate, and located on one side, far away from the circular track, of the bottom plate.

Preferably, the flexible strip comprises a rubber main body, a steel wire mesh is arranged in the rubber main body, and an anti-skid strip line part is arranged on the surface of the rubber main body.

Preferably, the outer side surface of the sucker is provided with a plurality of hard support rings concentric with the sucker.

Preferably, the detection wheel comprises two rubber wheels, the two rubber wheels are respectively arranged on two shaft levers, one ends of the two shaft levers are fixedly connected at an included angle of 90 degrees, and the other ends of the two shaft levers are fixed on the detection rod.

Preferably, the contact surface of the rubber wheel and the tank body is an arc surface.

Preferably, the base is provided with a welding seam detection camera, and the welding seam detection camera is positioned in the direction of the welding gun rotating back to the base.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the tank body to be welded is positioned through the tank body bracket, and then the tank body is welded around by the welding gun. In the welding process, the detection rod carries out contact measurement on the position of the welding line, and the controller judges the distance change between the welding gun and the welding line according to the detection result of the distance sensor, so that the telescopic oil cylinder and the angle adjusting motor are synchronously controlled to adjust the position of the welding gun. For the variable-curvature tank body, the welding position can be quickly detected and the welding gun can be synchronously adjusted, so that automatic welding of different variable-curvature tank bodies is realized, different welding tools do not need to be manufactured for different tank bodies, and the applicability is strong.

Drawings

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a block diagram of a base and an upper mounting mechanism thereof in accordance with one embodiment of the present invention.

Fig. 3 is a schematic diagram of a connection mode of a first support cylinder and a flexible strip according to an embodiment of the invention.

FIG. 4 is a block diagram of a flexible strip in accordance with one embodiment of the present invention.

FIG. 5 is a block diagram of a suction cup in accordance with an embodiment of the present invention.

Fig. 6 is a block diagram of a probe wheel in accordance with an embodiment of the present invention.

Detailed Description

Referring to fig. 1-6, a specific embodiment of the present invention includes a base 1, linear rails 2 are respectively installed at both ends of the base 1, a tank bracket 3 is slidably installed on the linear rails 2, the tank bracket 3 moves on the linear rails 2 by means of a tank driving motor 4, an annular rail 5 is installed in the middle of the base 1, a base 6 is installed on the annular rail 5, the base 6 moves on the annular rail 5 by means of a base driving motor 17, a sleeve 7 is fixed on the base 6, a detection rod 9 is connected to the inside of the sleeve 7 by a first spring 8, a detection wheel 10 is installed at the top of the detection rod 9, a distance sensor 11 for detecting the position of the detection rod 9 is installed in the sleeve 7, a telescopic cylinder 13 is connected to the base 6 by a rotating shaft 12, the telescopic cylinder 13 is located in a direction in which the detection rod 9 rotates back to the base 6, the rotating shaft 13 is connected to an angle adjusting motor 14, the top of the telescopic oil cylinder 13 is provided with a welding gun 15, the base 1 is provided with a controller 16, and the controller 16 is respectively in communication connection with the driving motor 4, the distance sensor 11, the telescopic oil cylinder 13 and the angle adjusting motor 14 and is used for controlling the position of the tank body, the angle of the welding gun 15 and the distance between the welding gun 15 and the tank body. After using jar body bracket 3 to fix and treating the welded jar body, base driving motor 17 drives base 6 around the motion of circular orbit 5, and the detection wheel 10 crimping is in the welding seam position, and along with the removal of base 6, detecting rod 9 produces along with the relative position change of welding seam and base 6 and reciprocates, and distance sensor 11 carries out real-time measurement to the removal of detecting rod 9 to obtain the relative position change of welding seam and base 6. The controller 16 calculates the angle and position of the welding gun 15 to be adjusted according to the measurement value of the distance sensor 11, and then adjusts the angle and position of the welding gun 15 through the telescopic oil cylinder 13 and the angle adjusting motor 14.

The tank body bracket 3 comprises a bottom plate 18 which is in sliding connection with the linear track 2, a support position adjusting track 19 is arranged on the bottom plate 18 along the direction perpendicular to the linear track 2, three sliders 20 are installed on the support position adjusting track 19, the sliders 20 move on the support position adjusting track 19 by means of slider driving motors 21, a first support oil cylinder 22 is installed at the top of each slider 20, a flexible strip 23 is connected between every two adjacent first support oil cylinders 22, a suction cup 24 is installed at the top of each first support oil cylinder 22, a bottom support 25 is connected onto the bottom plate 18, a second support oil cylinder 26 is installed between the bottom support 25 and the bottom plate 18, a pressure rod 27 is connected onto the bottom support 25, the suction cup 24 is installed at the free end of the pressure rod 27, a third support oil cylinder 28 is installed between the bottom support 25 and the pressure rod 27, the support position adjusting track 19 is located on one side, close to the annular track 5, and the bottom support 25 is located on one side, far away from the annular track 5, of the bottom plate 18. The flexible strip 23 comprises a rubber body 29, a steel wire mesh 30 is arranged in the rubber body 29, and an anti-skid strip line part 31 is arranged on the surface of the rubber body 29. The outer side of the suction cup 24 is provided with a plurality of hard support rings 32 which are concentric with the suction cup 24. The tank body bracket 3 adopts a triangular supporting structure consisting of the flexible strip 23, the bottom support 25 and the pressure lever 27 to position the tank body, and the flexible strip 23 and the sucking disc 24 are utilized to realize effective and stable clamping on the irregular surface of the tank body, thereby ensuring the stability of the tank body in the welding process.

The detection wheel 10 comprises two rubber wheels 33, the two rubber wheels 33 are respectively installed on two shaft levers 34, one ends of the two shaft levers 34 are fixedly connected at an included angle of 90 degrees, and the other ends of the two shaft levers 34 are fixed on the detection rod 9. The contact surface of the rubber wheel 33 and the tank body is a cambered surface. The detection wheel 10 adopts a structure with two wheels arranged obliquely, so that the detection wheel 10 is prevented from being pressed on a welding seam to cause the relative displacement of the welding seam.

The base 6 is provided with a welding seam detection camera 35, and the welding seam detection camera 35 is positioned in the direction of the welding gun 15 back to the base 6 for rotation. The welding seam detection camera 35 can perform synchronous visual inspection on the welded welding seam, and can find out the welding seam in time when welding defects appear, so that the rejection rate is reduced.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a variable camber jar of body automatic welder of arc fillet weld which characterized in that: comprises a base (1), linear tracks (2) are respectively arranged at two ends of the base (1), a tank body bracket (3) is arranged on the linear tracks (2) in a sliding way, the tank body bracket (3) moves on the linear tracks (2) by virtue of a tank body driving motor (4), an annular track (5) is arranged in the middle of the base (1), a base (6) is arranged on the annular track (5), the base (6) moves on the annular track (5) by virtue of a base driving motor (17), a sleeve (7) is fixed on the base (6), a detection rod (9) is connected in the sleeve (7) by virtue of a first spring (8), a detection wheel (10) is arranged at the top of the detection rod (9), a distance sensor (11) for detecting the position of the detection rod (9) is arranged in the sleeve (7), and a telescopic oil cylinder (13) is connected on the base (6) by virtue of a rotating shaft (12), the telescopic oil cylinder (13) is located in the direction in which the detection rod (9) rotates back to the base (6), the rotating shaft (13) is connected with the angle adjusting motor (14), the welding gun (15) is installed at the top of the telescopic oil cylinder (13), the controller (16) is installed on the base (1), and the controller (16) is in communication connection with the driving motor (4), the distance sensor (11), the telescopic oil cylinder (13) and the angle adjusting motor (14) respectively and is used for controlling the position of the tank body, the angle of the welding gun (15) and the distance between the telescopic oil cylinder and the tank body.

2. The automatic welding device for the variable-curvature tank body of the arc fillet weld according to claim 1, characterized in that: the tank body bracket (3) comprises a bottom plate (18) which is in sliding connection with the linear track (2), a supporting position adjusting track (19) is arranged on the bottom plate (18) along the direction vertical to the linear track (2), three sliding blocks (20) are arranged on the supporting position adjusting track (19), the sliding blocks (20) move on the supporting position adjusting track (19) by means of a sliding block driving motor (21), a first supporting oil cylinder (22) is arranged at the top of each sliding block (20), a flexible strip (23) is connected between every two adjacent first supporting oil cylinders (22), a sucking disc (24) is arranged at the top of each first supporting oil cylinder (22), a bottom support (25) is axially connected on the bottom plate (18), a second supporting oil cylinder (26) is arranged between the bottom support (25) and the bottom plate (18), a pressure rod (27) is axially connected on the bottom support (25), and a sucking disc (24) is arranged at the free end of the pressure rod (27), a third supporting oil cylinder (28) is arranged between the bottom support (25) and the pressure rod (27), the supporting position adjusting track (19) is positioned on one side, close to the annular track (5), of the bottom plate (18), and the bottom support (25) is positioned on one side, far away from the annular track (5), of the bottom plate (18).

3. The automatic welding device for the variable-curvature tank body of the arc fillet weld according to claim 2, characterized in that: the flexible strip (23) comprises a rubber main body (29), a steel wire mesh (30) is arranged in the rubber main body (29), and an anti-skid strip line part (31) is arranged on the surface of the rubber main body (29).

4. The automatic welding device for the variable-curvature tank body of the arc fillet weld according to claim 3, characterized in that: the outer side surface of the sucker (24) is provided with a plurality of hard support rings (32) which are concentric with the sucker (24).

5. The automatic welding device for the variable-curvature tank body of the arc fillet weld according to claim 2, characterized in that: the detection wheel (10) comprises two rubber wheels (33), the two rubber wheels (33) are respectively installed on two shaft levers (34), one ends of the two shaft levers (34) are fixedly connected at an included angle of 90 degrees, and the other ends of the two shaft levers (34) are fixed on the detection rod (9).

6. The automatic welding device for the variable-curvature tank body subjected to arc fillet welding according to claim 5, wherein the welding device comprises: the contact surface of the rubber wheel (33) and the tank body is an arc surface.

7. The automatic welding device for the variable-curvature tank body of the arc fillet weld according to claim 1, characterized in that: the welding line detection camera (35) is installed on the base (6), and the welding line detection camera (35) is located in the direction, back to the base (6), of the welding gun (15).