Girth welding device for cylindrical workpiece

Abstract

The utility model discloses a girth welding device for a cylindrical workpiece, which relates to the technical field of girth welding and comprises a base, at least four first sliding tables are slidably arranged on the base, a pair of carrier rollers is rotatably arranged on each first sliding table, one of the pair of carrier rollers is a power roller, a second sliding table is further arranged on the base, and the power roller is arranged on the second sliding table. A first vertical rod is fixedly arranged on the second sliding table, a first sliding sleeve is arranged on the first vertical rod in a sliding mode, a first transverse rod is fixedly arranged on one side of the first sliding sleeve, a welding gun is fixedly arranged below one end of the first transverse rod, and the first sliding sleeve is connected with a height adjusting assembly. The clamping device can be suitable for cylindrical workpieces of different lengths, it is guaranteed that the position close to a welding seam can be supported, the stability is improved, the welding gun can be vertically aligned to the welding seam by adjusting the position of the second sliding table, the cylindrical workpieces can be pressed through the arranged pressing roller, and the clamping stability is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of girth welding, in particular to a girth welding device for a cylindrical workpiece. Background Art

[0002] Automatic girth welding equipment is a general-purpose automatic welding equipment that can complete various circular and annular welds. It can be used for high-quality welding of materials such as carbon steel, low-alloy steel, stainless steel, aluminum and its alloys. It can be widely used in the welding of products such as hydraulic cylinders, automobile steering frames, drive shafts, gas cylinders, chemical and medical containers, liquefied gas tanks, fire-fighting equipment, rollers and liquid storage cylinders for mining and production lines;

[0003] However, existing circumferential seam welding devices generally clamp the workpiece from both ends, which can easily lead to unstable clamping for long workpieces, thereby affecting the processing accuracy of the workpiece. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a circumferential seam welding device for a cylindrical workpiece to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a circumferential seam welding device for cylindrical workpieces, comprising a base, on which are slidably provided at least four slides, each of which is rotatably provided with a pair of rollers, one of which is provided as a power roller, and a slide two is further provided on the base, on which a vertical pole one is fixedly provided, on which a sliding sleeve one is slidably provided, a cross bar one is fixedly provided on one side of the sliding sleeve, a welding gun is fixedly provided below one end of the cross bar one, and the sliding sleeve one is connected to a height adjustment assembly.

[0006] Preferably, the power roller includes a mounting cylinder, the roller is fixedly mounted on the mounting cylinder, a rotating shaft is provided on the base through a mounting frame, the rotating shaft can pass through the mounting cylinder and the two are connected by a sliding key, the mounting cylinder can move axially on the rotating shaft, and a driving motor for driving the rotating shaft to rotate is fixedly provided on the mounting frame.

[0007] Preferably, the height adjustment assembly includes a servo motor, which is fixedly mounted on the first vertical pole. The driving end of the servo motor is connected to a threaded rod, which is screwed into the first sliding sleeve.

[0008] Preferably, each of the slides is fixedly provided with a vertical pole 2, a sliding sleeve 2 is slidably provided on the vertical pole 2, a cross bar 2 is fixedly provided on one side of the sliding sleeve 2, a pair of pressure rollers are rotatably installed under the cross bar 2, a cylinder is fixedly provided on the vertical pole 2, and the telescopic end of the cylinder is fixedly connected to the sliding sleeve 2.

[0009] Preferably, the pair of support rollers and the pair of pressure rollers located on both sides of the base are both provided with convex eaves.

[0010] The utility model provides a circumferential seam welding device for cylindrical workpieces, which has the following beneficial effects: by adjusting the positions of multiple slides, it can be adaptively adjusted according to the length of the cylindrical workpiece, so that it can be suitable for cylindrical workpieces of different lengths, and ensure that the position close to the weld can be supported, thereby improving stability; by adjusting the position of slide two, the welding gun can be vertically aligned with the weld; by providing a pressure roller, the cylindrical workpiece can be pressed to further ensure the stability of the clamping; the servo motor can make the welding gun close to the cylindrical workpiece for welding; starting the drive motor can make the cylindrical workpiece rotate, thereby completing the circumferential seam welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the main view of the utility model;

[0012] Figure 2 for Figure 1 Cross-sectional view of AA;

[0013] Figure 3 for Figure 1 A partial enlarged view of B.

[0014] In the figure: 1. Base; 2. Slide 1; 3. Mounting cylinder; 4. Roller; 5. Mounting frame; 6. Rotating shaft; 7. Slide 2; 8. Vertical pole 1; 9. Sleeve 1; 10. Crossbar 1; 11. Welding gun; 12. Servo motor; 13. Threaded rod; 14. Vertical pole 2; 15. Sleeve 2; 16. Crossbar 2; 17. Pressure roller; 18. Eaves; 19. Drive motor; 20. Cylinder. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0016] See also Figure 1-3The utility model provides a technical solution: a circumferential seam welding device for cylindrical workpieces, comprising a base 1, a number of not less than four slides 2 being slidably arranged on the base 1, and a pair of rollers 4 being rotatably arranged on each slide 2, and a cylindrical workpiece can be placed by the rollers 4 on the multiple slides 2, and cylindrical workpieces of different lengths can be placed by adjusting the position of the slide 2, ensuring that the position close to the weld can be supported, one of the pair of rollers 4 is set as a power roller, and power can be transmitted through the power roller to make the cylindrical workpiece rotate, and a slide 2 7 is also provided on the base 1, and a vertical rod 8 is fixedly provided on the slide 2 7, and a sliding sleeve 9 is slidably provided on the vertical rod 8, and a cross bar 10 is fixedly provided on one side of the sliding sleeve 9, and a welding gun 11 is fixedly provided below one end of the cross bar 10, and the sliding sleeve 9 is connected to a height adjustment component, through which the welding gun 11 can be moved close to or away from the cylindrical workpiece, and the welding gun 11 can be aligned with the weld by adjusting the position of the slide 2 7.

[0017] As an embodiment of the present utility model, the power roller includes a mounting cylinder 3, and the roller 4 is fixedly mounted on the mounting cylinder 3. A rotating shaft 6 is rotatably arranged on the base 1 through the mounting frame 5. The rotating shaft 6 can pass through the mounting cylinder 3 and the two are connected by a sliding key. The mounting cylinder 3 can move axially on the rotating shaft 6. A driving motor 19 for driving the rotating shaft 6 to rotate is fixedly arranged on the mounting frame 5. The rotating shaft 6 can be rotated by the driving motor 19, and the rotating shaft 6 can drive the mounting cylinder 3 to rotate, thereby causing the roller 4 connected thereto to rotate to form a power roller. When the position of the slide 2 is adjusted, the sliding key connection between the mounting cylinder 3 and the rotating shaft 6 can ensure the transmission of torque between the two.

[0018] As an embodiment of the present utility model, the height adjustment component includes a servo motor 12, which is fixedly mounted on the vertical pole 8. The driving end of the servo motor 12 is connected to a threaded rod 13, which is screwed into the sleeve 9. The servo motor can drive the threaded rod 13 to rotate, and the rotation of the threaded rod 13 can make the sleeve 9 move on the vertical pole 8. The servo motor 12 accurately controls the number of rotations of the threaded rod 13 to control the height of the cross bar 10.

[0019] As an embodiment of the present utility model, each slide 2 is fixedly provided with a vertical rod 2 14, a sliding sleeve 2 15 is slidingly provided on the vertical rod 2 14, a cross bar 2 16 is fixedly provided on one side of the sliding sleeve 2 15, a pair of pressure rollers 17 are rotatably installed under the cross bar 2 16, and a cylinder 20 is fixedly provided on the vertical rod 2 14. The telescopic end of the cylinder 20 is fixedly connected to the sliding sleeve 2 15. The height of the cross bar 2 16 can be adjusted by the cylinder 20, and then the cylindrical workpiece can be pressed onto the roller 4 through the pressure roller 17, thereby improving the clamping stability.

[0020] As an embodiment of the present invention, a pair of rollers 4 and a pair of pressure rollers 17 located on both sides of the base 1 are provided with convex ridges 18, which can prevent the cylindrical workpiece from moving radially outward.

[0021] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0022] The working principle and usage process of the present invention are as follows: when in use, the position of slide 2 is adjusted according to the length of the cylindrical workpiece. After the adjustment, slide 2 is fixed on the base 1, the cylindrical workpiece is placed on the roller 4, the position of slide 2 7 is adjusted so that the welding gun 11 is vertically aligned with the weld seam, and after the adjustment, slide 2 7 is fixed on the base 1, the cylinder 20 is started to lower the cross bar 2 16, so that the pressure roller 17 is pressed tightly against the cylindrical workpiece, the cross bar 10 can be lowered by the servo motor 12, so that the welding gun 11 is close to the cylindrical workpiece for welding, and the drive motor 19 is started to rotate the cylindrical workpiece, thereby completing the circumferential seam welding.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circumferential seam welding device for cylindrical workpieces, characterized in that: The invention comprises a base (1), wherein at least four slides (2) are slidably provided on the base (1), a pair of rollers (4) are rotatably provided on each slide (2), one of the pair of rollers (4) is provided as a power roller, and a slide (7) is further provided on the base (1), a vertical pole (8) is fixedly provided on the slide (7), a sliding sleeve (9) is slidably provided on the vertical pole (8), a cross bar (10) is fixedly provided on one side of the sliding sleeve (9), a welding gun (11) is fixedly provided below one end of the cross bar (10), and the sliding sleeve (9) is connected to a height adjustment component.

2. A circumferential seam welding device for cylindrical workpieces according to claim 1, characterized in that: The power roller includes a mounting cylinder (3), the supporting roller (4) is fixedly mounted on the mounting cylinder (3), a rotating shaft (6) is rotatably arranged on the base (1) through a mounting frame (5), the rotating shaft (6) can pass through the mounting cylinder (3) and the two are connected by a sliding key, the mounting cylinder (3) can move axially on the rotating shaft (6), and a driving motor (19) for driving the rotating shaft (6) to rotate is fixedly arranged on the mounting frame (5).

3. The circumferential seam welding device for cylindrical workpieces according to claim 1, characterized in that: The height adjustment assembly includes a servo motor (12), which is fixedly mounted on the vertical pole (8). The driving end of the servo motor (12) is connected to a threaded rod (13), and the threaded rod (13) is screwed into the sliding sleeve (9).

4. The circumferential seam welding device for cylindrical workpieces according to claim 1, characterized in that: Each of the slides (2) is fixedly provided with a vertical rod (14), a sliding sleeve (15) is slidably provided on the vertical rod (14), a cross bar (16) is fixedly provided on one side of the sliding sleeve (15), a pair of pressure rollers (17) are rotatably installed below the cross bar (16), a cylinder (20) is fixedly provided on the vertical rod (14), and the telescopic end of the cylinder (20) is fixedly connected to the sliding sleeve (15).

5. The circumferential seam welding device for cylindrical workpieces according to claim 4, characterized in that: A pair of the supporting rollers (4) and a pair of the pressing rollers (17) located on both sides of the base (1) are both provided with convex eaves (18).

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