A kind of circumferential seam welding equipment in cylinder

Abstract

This invention provides a cylindrical internal circumferential seam welding device, relating to the fields of roller processing and circumferential welding technology. It includes: a vertical guide frame, one side of which has a slotted structure; a feed support, one side of which also has a slotted structure; a connecting seat, both sides of which are slidably mounted within the slotted structures of the vertical guide frame and the feed support, respectively, with the vertical guide frame and the feed support staggered by 90 degrees; a welding torch platform is fixedly mounted at one end of the feed support, a welding torch holder is rotatably mounted outside the welding torch platform, and a double-tube welding torch is fixedly mounted outside the welding torch holder; this invention includes an auxiliary pressure roller, providing a limiting effect that restricts the position of the cylinder, ensuring that the cylinder can only rotate in place, thus preventing the cylinder from falling off; and the hexagonal shaft portion of the drive shaft maintains the transmission effect during sliding, allowing the moving T-wheel to be driven at any position, solving the problem of the lack of limiting effect in existing equipment.

Description

Technical Field

[0001] This invention relates to the fields of drum processing and circumferential welding technology, and particularly to a circumferential welder for a cylinder. Background Technology

[0002] When processing the cylinder, the inner and outer seams of the through plate need to be welded separately. Previously, when we processed the cylinder, we controlled the welding inside by using rollers to support the cylinder and adjusting the cylinder angle. When the cylinder was adjusted to a suitable processing position, the cylinder was rotated for welding.

[0003] The welding equipment currently in use has the following disadvantages:

[0004] 1. It lacks the function of limiting the cylinder, which cannot prevent the cylinder from falling during rotation. The rotation effect of the cylinder is not stable enough, and it is inconvenient to adapt and adjust it according to different sizes of cylinders.

[0005] 2. The method of adjusting the welding position by using dual-axis feed only infers the movement range by calculating the motor drive time, which is inconvenient to directly measure and locate the welding point during the movement.

[0006] 3. It lacks the function of multi-axis adjustment of welding position, resulting in a large welding dead angle. Summary of the Invention

[0007] In view of the above, the present invention addresses the shortcomings of the prior art by providing a cylindrical inner circumferential seam welding device.

[0008] This invention provides a cylindrical body circumferential seam welding device, comprising:

[0009] A vertical guide frame, wherein one side of the vertical guide frame has a slotted structure;

[0010] The feed support has a slotted structure on one side;

[0011] The connecting seat has two sides that are slidably mounted in the slotted structure of the vertical guide and the feed bracket, respectively, with the vertical guide and the feed bracket staggered by 90 degrees.

[0012] A welding torch stand is fixedly installed at one end of the feed support, a welding torch holder is rotatably installed outside the welding torch stand, and a double-tube welding torch is fixedly installed outside the welding torch holder.

[0013] The support base has four sets of telescopic guide rods fixedly installed at the top corners.

[0014] Preferably, the vertical guide is internally rotatably equipped with a vertical lead screw, and a height control motor is fixedly installed on the top of the vertical guide. The height control motor is connected to the vertical lead screw via a transmission, and the vertical lead screw is threadedly connected to one side of the connecting seat.

[0015] Preferably, the feed bracket is internally rotatably equipped with a transverse lead screw, and a feed motor is fixedly installed at one end of the feed bracket. The feed motor is connected to the transverse lead screw via a transmission, and the transverse lead screw is threadedly connected to one side of the connecting seat.

[0016] Preferably, two sets of rod resistors are fixedly installed on the inner wall of the groove of both the vertical guide and the feed bracket; energized sliders are fixedly installed on both sides of the connecting seat, and the energized sliders are respectively slidably connected to the two sets of rod resistors in the vertical guide and the feed bracket.

[0017] Preferably, a directional control motor is fixedly installed on the outside of the welding torch station, and a control worm gear is driven to the shaft end of the directional control motor.

[0018] Preferably, a lifting electric cylinder is fixedly installed at the top center of the support base; a lifting seat is fixedly installed at the top of the telescopic guide rod and the lifting electric cylinder, an L-shaped seat is hinged to the top of the lifting seat, and an angle control electric cylinder for controlling the elevation angle is hinged between the L-shaped seat and the lifting seat.

[0019] Preferably, two sets of drive shafts are rotatably arranged at the middle of the turning point of the L-shaped seat, and two sets of fixed T-wheels are fixedly arranged near the turning point of the drive shafts; a movable rotating seat is slidably arranged on the top of the L-shaped seat in conjunction with the guide rail, and two sets of movable T-wheels are rotatably arranged in the movable rotating seat; a drive motor is fixedly arranged at the front end of the L-shaped seat, and the drive motor is connected to the two sets of drive shafts by a synchronous belt drive.

[0020] Preferably, the rear half of the drive shaft is a hexagonal shaft structure. The hexagonal shaft structure passes through the movable T-wheel, is fitted with a spring, and is fixedly provided with a limit stop. The hexagonal shaft structure and the movable T-wheel are slidably connected. A pull rod is provided on the front side of the movable rotary seat, and the pull rod passes through the turning point of the L-shaped seat.

[0021] Preferably, two sets of arc-shaped wheel frames are hinged to both sides of the L-shaped seat, and an auxiliary pressure roller is rotatably installed at the top center of the two sets of arc-shaped wheel frames on the same side; a side electric cylinder is hinged between the middle of the arc-shaped wheel frame and the lower sides of the L-shaped seat.

[0022] Preferably, a control worm gear is fixedly provided on one side of the shaft end of the welding torch holder, and the control worm gear is connected to the control worm gear drive.

[0023] The beneficial effects are as follows:

[0024] 1. The present invention is equipped with an auxiliary pressure roller, which provides a limiting effect, can limit the position of the cylinder, ensure that the cylinder can only rotate in place, and can prevent the cylinder from falling off. The hexagonal shaft part of the drive shaft can maintain the transmission effect during the sliding process. The moving T-wheel can be driven at any position. When the drive shaft rotates, it will drive the fixed T-wheel and the moving T-wheel to rotate synchronously. The fixed T-wheel and the moving T-wheel provide driving force to continuously flip and weld the cylinder.

[0025] 2. The installation of an energized slider and a rod-type resistor provides a position monitoring function. During the movement of the connecting seat, the sliding of the energized slider against the rod-type resistor can determine the moving distance of the connecting seat within the vertical guide frame and the moving distance of the feed support outside the connecting seat, thereby achieving distance monitoring and facilitating the recording of welding positions, which in turn facilitates the subsequent repeated processing of cylinders of the same size.

[0026] 3. Through multi-angle adjustment, the welding position can be adjusted according to the cylinder of different sizes, reducing dead angles. The vertical guide and feed support can realize the dual-axis adjustment of up and down and front and back. The welding gun holder is driven by worm gear transmission, which can adjust the angle of the double tube welding gun and control the extension of the angle control electric cylinder. The angle of the cylinder can be adjusted. Through dual angle adjustment, the weld can be aligned to the welding position for continuous rotation welding, improving the welding effect. Attached Figure Description

[0027] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the present invention is shown;

[0028] Figure 2 A schematic diagram of the axial structure of an embodiment of the present invention is shown;

[0029] Figure 3 A schematic diagram of the assembly structure of the vertical guide frame in an embodiment of the present invention is shown;

[0030] Figure 4 A schematic diagram of the assembly structure of the feed bracket in an embodiment of the present invention is shown;

[0031] Figure 5 An embodiment of the present invention is shown. Figure 5 A schematic diagram of the disassembled structure;

[0032] Figure 6 A schematic diagram of the driving structure of the welding torch holder in an embodiment of the present invention is shown;

[0033] Figure 7 A schematic diagram of the assembly structure of the L-shaped seat in an embodiment of the present invention is shown;

[0034] Figure 8 A side-tilt structure diagram of the L-shaped seat in an embodiment of the present invention is shown.

[0035] List of reference numerals

[0036] 1. Vertical guide frame; 101. Vertical lead screw; 102. Height control motor; 2. Feed support; 201. Transverse lead screw; 202. Feed motor; 203. Welding torch stand; 204. Direction control motor; 205. Control worm gear; 3. Connecting seat; 301. Electrified slider; 4. Rod resistor; 5. Welding torch holder; 501. Control worm gear; 502. Double-tube welding torch; 6. Bearing base; 601. Telescopic guide rod; 602. Lifting electric cylinder; 603. Lifting seat; 7. L-shaped seat; 701. Drive shaft; 702. Fixed T-wheel; 703. Moving rotary seat; 704. Moving T-wheel; 705. Drive motor; 8. Angle control electric cylinder; 9. Arc-shaped wheel frame; 901. Auxiliary pressure roller; 10. Side electric cylinder. Detailed Implementation

[0037] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0038] Example 1

[0039] Please refer to the attached diagram in the instruction manual. Figures 1 to 8 As shown:

[0040] This invention proposes a cylindrical body circumferential seam welding device, comprising: a vertical guide frame 1, one side of which has a slotted structure; a feed support 2, one side of which has a slotted structure; a connecting seat 3, both sides of which are slidably disposed within the slotted structures of the vertical guide frame 1 and the feed support 2, respectively, with the vertical guide frame 1 and the feed support 2 staggered by 90 degrees; a welding torch platform 203 is fixedly disposed at one end of the feed support 2, a welding torch holder 5 is rotatably disposed outside the welding torch platform 203, and a double-tube welding torch 502 is fixedly disposed outside the welding torch holder 5;

[0041] The support base 6 has four sets of telescopic guide rods 601 fixedly installed at the top corners, and a lifting electric cylinder 602 fixedly installed in the middle of the top of the support base 6. A lifting seat 603 is fixedly installed on the top of the telescopic guide rods 601 and the lifting electric cylinder 602. An L-shaped seat 7 is hinged to the top of the lifting seat 603. An angle control electric cylinder 8 for controlling the elevation angle is hinged between the L-shaped seat 7 and the lifting seat 603.

[0042] The vertical guide 1 is internally equipped with a vertical lead screw 101, and a height control motor 102 is fixedly installed on the top of the vertical guide 1. The height control motor 102 is connected to the vertical lead screw 101 for transmission, and the vertical lead screw 101 is threadedly connected to one side of the connecting seat 3.

[0043] The feed bracket 2 is internally equipped with a transverse lead screw 201, and a feed motor 202 is fixedly installed at one end of the feed bracket 2. The feed motor 202 is connected to the transverse lead screw 201 for transmission, and the transverse lead screw 201 is threadedly connected to one side of the connecting seat 3.

[0044] Two sets of rod resistors 4 are fixedly installed on the inner wall of the groove in both the vertical guide frame 1 and the feed bracket 2; energized sliders 301 are fixedly installed on both sides of the connecting seat 3, and the energized sliders 301 are respectively matched and slidably connected with the two sets of rod resistors 4 in the vertical guide frame 1 and the feed bracket 2.

[0045] Among them, a directional control motor 204 is fixedly installed on the outside of the welding torch station 203, and a control worm gear 205 is drivenly connected to the shaft end of the directional control motor 204; a control worm wheel 501 is fixedly installed on one side of the shaft end of the welding torch holder 5, and the control worm wheel 501 is drivenly connected to the control worm gear 205.

[0046] The L-shaped base 7 has two sets of drive shafts 701 rotatably mounted at the turning point, and two sets of fixed T-wheels 702 are fixedly mounted near the turning point of the drive shafts 701; a movable rotating base 703 is slidably mounted on the top of the L-shaped base 7 in conjunction with the guide rail, and two sets of movable T-wheels 704 are rotatably mounted in the movable rotating base 703; a drive motor 705 is fixedly mounted at the front end of the L-shaped base 7, and the drive motor 705 is synchronously belt driven connected to the two sets of drive shafts 701.

[0047] The rear half of the drive shaft 701 is a hexagonal shaft structure. The hexagonal shaft structure passes through the movable T-wheel 704, is fitted with a spring, and is fixedly provided with a limit stop. The hexagonal shaft structure is slidably connected to the movable T-wheel 704. A pull rod is provided on the front side of the movable rotary seat 703. The pull rod passes through the turning point of the L-shaped seat 7.

[0048] Two sets of arc-shaped wheel frames 9 are hinged on both sides of the L-shaped seat 7. An auxiliary pressure roller 901 is rotatably installed at the top center of the two sets of arc-shaped wheel frames 9 on the same side. A side electric cylinder 10 is hinged between the middle of the arc-shaped wheel frame 9 and the lower sides of the L-shaped seat 7.

[0049] like Figure 1-8 As shown, when using the cylinder, install it above the L-shaped seat 7, use the pull rod to push the movable rotating seat 703, move the movable T-wheel 704 away from the fixed T-wheel 702 to increase the distance between the two, and then place the cylinder against the fixed T-wheel 702.

[0050] Then slowly release the movable swivel 703 so that the movable T-wheel 704 contacts the other side of the cylinder. Position the cylinder by clamping it from both sides, and then release the lifting device that is clamping the cylinder.

[0051] Then, the welding position is controlled by the control program. First, the height control motor 102 is started to drive the vertical screw 101 to rotate. The height of the connecting seat 3 is adjusted by the vertical screw 101, which in turn drives the feed bracket 2 to move up and down. The height position of the feed bracket 2 is adjusted. Then, the feed motor 202 is started to drive the transverse screw 201 to rotate. The transverse screw 201 is used to push the welding gun seat 5, so that the double-tube welding gun 502 is inserted into the cylinder.

[0052] During the movement of the connecting seat 3, the sliding of the energized slider 301 against the rod resistor 4 can be used to determine the moving distance of the connecting seat 3 within the vertical guide frame 1 and the moving distance of the feed bracket 2 outside the connecting seat 3, thereby realizing distance monitoring and facilitating the recording of welding positions.

[0053] Then, start the directional control motor 204 to drive the control worm gear 205 to rotate, and use the control worm gear 205 to drive the control worm wheel 501 to rotate, thereby adjusting the elevation angle of the double-tube welding torch 502; the angle of the cylinder can be further adjusted, and the extension range of the angle control electric cylinder 8 can be adjusted as needed, thereby adjusting the angle of the cylinder so that the double-tube welding torch 502 is aligned with the weld position.

[0054] Example 2

[0055] Based on Example 1, the auxiliary pressure roller 901 can be used to restrict the cylinder, extend the electric cylinders on both sides 10 to raise the arc-shaped wheel frame 9, and use the auxiliary pressure roller 901 to fix the upper side of the cylinder, applying a downward pushing force to the cylinder to position it.

[0056] Example 3

[0057] Based on Example 1, the drive motor 705 is then started to drive the two sets of transmission shafts 701 to rotate. While the transmission shafts 701 are rotating, they will drive the fixed T wheel 702 and the movable T wheel 704 to rotate synchronously. The fixed T wheel 702 and the movable T wheel 704 provide driving force to continuously flip and weld the cylinder.

[0058] The hexagonal shaft portion of the drive shaft 701 can maintain the transmission effect during sliding, and the moving T-wheel 704 can be driven at any position, thereby enabling continuous rotation of the cylinder.

[0059] The specific usage and function of this embodiment: In this invention, when used, as follows: Figure 1 The cylinder is installed above the L-shaped seat 7 in this manner, as per reference. Figure 7 The movable rotary seat 703 is pushed forward using a pull rod to move the movable T-wheel 704 away from the fixed T-wheel 702, increasing the distance between the two. Then, the cylinder is placed against the fixed T-wheel 702. The movable rotary seat 703 is then released so that the movable T-wheel 704 contacts the other side of the cylinder. The cylinder is positioned by clamping it from both sides.

[0060] Then, the welding position is controlled by the control program. First, the height control motor 102 is started to drive the vertical screw 101 to rotate. The height of the connecting seat 3 is adjusted by the vertical screw 101, which in turn drives the feed support 2 to move up and down. The height position of the feed support 2 is adjusted. Then, the feed motor 202 is started to drive the transverse screw 201 to rotate. The transverse screw 201 is used to push the welding gun seat 5, so that the double-tube welding gun 502 is inserted into the cylinder. During the movement of the connecting seat 3, the sliding of the energized slider 301 against the rod resistor 4 can be used to determine the moving distance of the connecting seat 3 in the vertical guide 1 and the moving distance of the feed support 2 outside the connecting seat 3, thereby realizing distance monitoring and facilitating the recording of the welding position.

[0061] Then start the directional motor 204 to drive the control worm 205 to rotate, and use the control worm 205 to drive the control worm wheel 501 to rotate, thereby adjusting the elevation angle of the double-tube welding gun 502;

[0062] Extend the electric cylinders on both sides 10 to lift the arc-shaped wheel frame 9, and use the auxiliary pressure roller 901 to fix the upper side of the cylinder, applying a downward counter-pushing force to the cylinder to position it.

[0063] Adjust the extension range of the angle control electric cylinder 8 as needed, thereby adjusting the angle of the cylinder so that the double-tube welding gun 502 is aligned with the weld position. Then start the drive motor 705 to drive the two sets of transmission shafts 701 to rotate. While the transmission shafts 701 are rotating, they will drive the fixed T-wheel 702 and the movable T-wheel 704 to rotate synchronously. The fixed T-wheel 702 and the movable T-wheel 704 provide driving force to continuously flip and weld the cylinder.

[0064] The fixed T-wheel 702 and the movable T-wheel 704 are of the same size, which can ensure a stable rotation effect;

[0065] After welding is completed, reset all components and swap the positions of the two sides of the cylinder before welding can be performed again.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cylindrical body circumferential seam welding device, characterized in that, include: Vertical guide (1), one side of which has a slotted structure; The feed support (2) has a slotted structure on one side; Connecting seat (3), the two sides of the connecting seat (3) are respectively slidably arranged in the slotted structure of the vertical guide (1) and the feed bracket (2) in cooperation with the guide rail; the vertical guide (1) and the feed bracket (2) are staggered by 90 degrees. The feed support (2) is fixedly provided with a welding gun platform (203) at one end, and a welding gun seat (5) is rotatably provided on the outside of the welding gun platform (203), and a double-tube welding gun (502) is fixedly provided on the outside of the welding gun seat (5). The support base (6) has four sets of telescopic guide rods (601) fixedly installed at the top corners. Two sets of rod resistors (4) are fixedly installed on the inner wall of the groove of the vertical guide (1) and the feed bracket (2); energized sliders (301) are fixedly installed on both sides of the connecting seat (3), and the energized sliders (301) are respectively matched and slidably connected with the two sets of rod resistors (4) in the vertical guide (1) and the feed bracket (2). A lifting cylinder (602) is fixedly installed at the top center of the support base (6); a lifting seat (603) is fixedly installed at the top of the telescopic guide rod (601) and the lifting cylinder (602); an L-shaped seat (7) is hinged at the top of the lifting seat (603); and an angle control cylinder (8) for controlling the elevation angle is hinged between the L-shaped seat (7) and the lifting seat (603). Two sets of drive shafts (701) are rotatably arranged at the middle of the turning point of the L-shaped seat (7), and two sets of fixed T-wheels (702) are fixedly arranged near the turning point of the drive shafts (701); a movable rotating seat (703) is slidably arranged on the top of the L-shaped seat (7) in cooperation with the guide rail, and two sets of movable T-wheels (704) are rotatably arranged in the movable rotating seat (703); a drive motor (705) is fixedly arranged at the front end of the L-shaped seat (7), and the drive motor (705) is connected to the two sets of drive shafts (701) by a synchronous belt drive. The rear half of the drive shaft (701) is a hexagonal shaft structure. The hexagonal shaft structure passes through the movable T wheel (704), is fitted with a spring, and is fixedly provided with a limit stop. The hexagonal shaft structure is in slidable connection with the movable T wheel (704). A pull rod is provided on the front side of the movable rotary seat (703). The pull rod passes through the turning point of the L-shaped seat (7). Two sets of arc-shaped wheel frames (9) are hinged on both sides of the L-shaped seat (7), and an auxiliary pressure roller (901) is rotatably arranged in the middle of the top of the two sets of arc-shaped wheel frames (9) on the same side; a side electric cylinder (10) is hinged between the middle of the arc-shaped wheel frame (9) and the lower sides of the L-shaped seat (7).

2. The cylindrical body circumferential seam welding equipment according to claim 1, characterized in that, The vertical guide (1) is internally rotatably equipped with a vertical lead screw (101), and a height control motor (102) is fixedly installed on the top of the vertical guide (1). The height control motor (102) is connected to the vertical lead screw (101) for transmission, and the vertical lead screw (101) is threadedly connected to one side of the connecting seat (3).

3. The cylindrical body circumferential seam welding equipment according to claim 1, characterized in that, The feed bracket (2) is internally rotatably equipped with a transverse lead screw (201), and a feed motor (202) is fixedly installed at one end of the feed bracket (2). The feed motor (202) is connected to the transverse lead screw (201) for transmission, and the transverse lead screw (201) is threadedly connected to one side of the connecting seat (3).

4. The cylindrical body circumferential seam welding equipment according to claim 1, characterized in that, The welding torch station (203) is externally fixed with a directional control motor (204), and the shaft end of the directional control motor (204) is connected to a control worm gear (205).

5. The cylindrical body circumferential seam welding equipment according to claim 4, characterized in that, A control worm gear (501) is fixedly installed on one side of the shaft end of the welding torch holder (5), and the control worm gear (501) is connected to the control worm (205) for transmission.

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