Turnable girth welding device

Abstract

The utility model discloses a circular seam welding device capable of turning around, and particularly relates to the field of circular seam welding devices, the circular seam welding device comprises a guide rail mounting plate, a metal frame is fixed at the bottom of the guide rail mounting plate, and a limiting device is fixed on the outer side of the metal frame; the device is provided with a limiting device, firstly, a large-specification rotary air cylinder is installed at the top of an air cylinder connecting plate, a bracket installing plate and a material supporting frame can be controlled to turn around, the labor intensity of workers is reduced, the purpose of turning-around girth welding is achieved, the corresponding face of a bearing limiting plate is clamped on the outer side of a first air cylinder, and therefore the outer side of the first air cylinder is limited; during long-time use, the stability of the welding process is improved, and turn-round girth welding is facilitated; the device is provided with the stabilizing device, the corresponding face of the positioning sleeve is attached to the outer side of the corresponding first air cylinder, and therefore the outer side of the installation portion of the first air cylinder is reinforced, the overall structural stability is further improved, and the purpose of improving the girth welding stability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of girth welding devices, in particular to a girth welding device capable of turning around. Background Art

[0002] During the production process, straight pipes and elbows, as well as straight pipes and straight pipes of different diameters, are fixed by joint welding. However, ordinary welding machines can only achieve welding in the horizontal or vertical plane direction by using a welding gun according to the walking mechanism. For pipe fittings, the welding gun needs to rotate around the workpiece to complete the welding.

[0003] A Chinese patent discloses a circumferential seam welding device (authorization announcement number CN 206484181 U), which includes a base and an adjustment bracket; the adjustment bracket includes a lifting adjustment bracket and a transverse adjustment bracket, and the transverse adjustment bracket and the lifting adjustment bracket are vertically connected to each other through a lifting adjustment device; a transverse adjustment device is provided on the transverse adjustment bracket, and a welding gun is vertically provided on the transverse adjustment device; a roller frame is provided below the transverse adjustment bracket, and two rows of symmetrical rotating devices are provided on the roller frame, and the rotating devices are arranged in multiple rows; the rotating device includes a fixed frame and a roller, and a rotating shaft is connected to the center of the roller, and a rotating motor is connected to the end of the rotating shaft; the two rows of rotating devices form an arc-shaped pipe groove. The utility model can cut pipes or tank bodies of different specifications through the transverse adjustment bracket and the lifting adjustment bracket, and has strong practicality; the tank body or pipe fitting to be welded is placed on the rotating device, and the tank body or pipe fitting will rotate with the rotating device, thereby completing the welding of the circumferential seam, which is convenient and quick, and at the same time, the structure is simple and the cost is low;

[0004] However, during the use of the above-mentioned circumferential seam welding device, after welding one end, it needs to be manually turned around and then welded on the other end, which puts great labor intensity on the workers, and there is a lack of limit stops on the outer side of the corresponding cylinder bottom, which affects the stability of the welding process when used for a long time. Therefore, technical personnel in this field provide a circumferential seam welding device that can be turned around to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to provide a reversible circumferential seam welding device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a U-turnable annular seam welding device comprises a guide rail mounting plate, a metal frame is fixed at the bottom of the guide rail mounting plate, a limiting device is fixed on the outer side of the metal frame, a cylinder mounting plate is arranged at the bottom of the guide rail mounting plate, a first cylinder is installed on one side of the cylinder mounting plate, a stabilizing device is arranged at the bottom of the guide rail mounting plate, a universal joint is connected to the outer side of the output shaft of the first cylinder, a guide rail main body is installed at the top of the guide rail mounting plate, a slider main body is slidably connected to the outer side of the guide rail main body, a slider mounting plate is fixed on the top of the slider main body, a second cylinder is arranged on the top of the slider mounting plate, a cylinder connecting plate is installed on the top of the second cylinder, a large-size rotary cylinder is arranged on the top of the cylinder connecting plate, a bracket mounting plate is cooperatively installed on the top of the large-size rotary cylinder, and a bracket is fixed on the top of the bracket mounting plate.

[0007] As a further solution of the utility model: the limiting device includes a connecting frame, a protective shell is fixed on the top of the connecting frame, a ball screw is rotatably connected inside the protective shell, a handle frame is fixed to one end of the ball screw, two ball nuts are threadedly connected to the outer side of the ball screw, a limiting frame is fixed to the top of the ball nut, a mounting seat is installed on the top of the limiting frame, and a reinforcement plate is arranged on the top of the mounting seat.

[0008] As a further solution of the utility model: a supporting and limiting plate is fixed to one side of the reinforcing plate, a supporting pad is arranged on the top of the protective shell, and the threads inside the two ball nuts are in opposite directions.

[0009] As a further solution of the utility model: the connecting frame and the metal frame are fixedly connected, and a through groove for accommodating the movement of the limiting frame is opened on the top of the protection shell.

[0010] As a further solution of the utility model: the stabilizing device includes an outer shell, a first mounting pad is fixed to the inner wall of one side of the outer shell, a sponge ball is connected to one side of the first mounting pad, one end of the sponge ball is connected to the second mounting pad, a limiting pad is fixed to one side of the second mounting pad, a movable column is fixed to one side of the limiting pad, a positioning sleeve is installed at one end of the movable column, and a support spring is connected to one side of the positioning sleeve.

[0011] As a further solution of the utility model: one end of the support spring is fixedly connected to the outer shell, the outer shell and the guide rail mounting plate are fixedly connected, and one side of the positioning sleeve is in contact with the outer side of the first cylinder.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] 1. The device is provided with a limit device. First, a large-size rotary cylinder is installed on the top of the cylinder connecting plate, which can control the U-turn of the bracket mounting plate and the bracket, reduce the labor intensity of workers, and achieve the purpose of U-turnable ring seam welding. At the same time, the corresponding surface of the support limit plate is clamped on the outside of the first cylinder, and the support pad on the top of the protective shell can support the bottom of the first cylinder, thereby limiting the outside of the first cylinder, improving the stability of the welding process when used for a long time, and facilitating the U-turn ring seam welding;

[0014] 2. The device is provided with a stabilizing device, so that the corresponding surface of the positioning sleeve is fitted to the outer side of the corresponding first cylinder, thereby reinforcing the outer side of the installation part of the first cylinder, further improving the stability of the overall structure, and achieving the purpose of improving the stability of the circumferential seam welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the limit device of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the stabilizing device of the utility model;

[0020] In the figure: 1. guide rail mounting plate; 2. metal frame; 3. limit device; 31. connecting frame; 32. protective shell; 33. ball screw; 34. handle frame; 35. ball nut; 36. limit frame; 37. mounting seat; 38. reinforcement plate; 39. support limit plate; 310. support pad; 4. first cylinder; 5. stabilizing device; 51. outer shell; 52. first mounting pad; 53. sponge ball; 54. second mounting pad; 55. limit pad; 56. moving column; 57. positioning sleeve; 58. support spring; 6. cylinder mounting plate; 7. universal joint; 8. guide rail body; 9. slider body; 10. slider mounting plate; 11. second cylinder; 12. cylinder connecting plate; 13. large-size rotary cylinder; 14. bracket mounting plate; 15. bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3 The utility model provides a reversible annular seam welding device, comprising a guide rail mounting plate 1, a metal frame 2 is fixed at the bottom of the guide rail mounting plate 1, a limiting device 3 is fixed on the outer side of the metal frame 2, a cylinder mounting plate 6 is arranged at the bottom of the guide rail mounting plate 1, a first cylinder 4 is installed on one side of the cylinder mounting plate 6, a stabilizing device 5 is arranged at the bottom of the guide rail mounting plate 1, a universal joint 7 is connected to the outer side of the output shaft of the first cylinder 4, a guide rail body 8 is installed at the top of the guide rail mounting plate 1, a slider body 9 is slidably connected to the outer side of the guide rail body 8, a slider mounting plate 10 is fixed to the top of the slider body 9, a second cylinder 11 is arranged at the top of the slider mounting plate 10, a cylinder connecting plate 12 is installed at the top of the second cylinder 11, a large-size rotary cylinder 13 is arranged at the top of the cylinder connecting plate 12, a bracket mounting plate 14 is installed on the top of the large-size rotary cylinder 13, and a bracket mounting plate 14 is fixed to the top of the bracket mounting plate 14.

[0023] The limiting device 3 includes a connecting frame 31, a protective shell 32 is fixed on the top of the connecting frame 31, a ball screw 33 is rotatably connected inside the protective shell 32, a handle frame 34 is fixed to one end of the ball screw 33, two ball nuts 35 are threadedly connected to the outer side of the ball screw 33, a limiting frame 36 is fixed to the top of the ball nut 35, the connecting frame 31 and the metal frame 2 are fixedly connected, a through groove for accommodating the movement of the limiting frame 36 is opened on the top of the protective shell 32, a mounting seat 37 is installed on the top of the limiting frame 36, a reinforcing plate 38 is arranged on the top of the mounting seat 37, a supporting limiting plate 39 is fixed to one side of the reinforcing plate 38, a supporting pad 310 is arranged on the top of the protective shell 32, and the threads inside the two ball nuts 35 are in opposite directions.

[0024] During use of the device, a large-sized rotary cylinder 13 is first installed on the top of the cylinder connecting plate 12, which can control the U-turn of the bracket mounting plate 14 and the bracket 15, reduce the labor intensity of workers, and achieve the purpose of U-turnable annular seam welding. At the same time, after the first cylinder 4 is fixedly connected to the guide rail mounting plate 1 through the cylinder mounting plate 6, the metal frame 2 and the connecting frame 31 are fixedly connected, and the positions of the connecting frame 31 and the protective shell 32 are fixed by the metal frame 2. Then the operator can rotate the handle frame 34 to drive the ball screw 33 to rotate, and the internal threads of the two ball nuts 35 are in opposite directions, so the mounting seat 37 and the reinforcement plate 38 can be driven to move at the same time, so that the corresponding surface of the supporting limit plate 39 is clamped on the outside of the first cylinder 4, and the support pad 310 on the top of the protective shell 32 can support the bottom of the first cylinder 4, thereby limiting the outside of the first cylinder 4, improving the stability of the welding process during long-term use, and facilitating the U-turn annular seam welding.

[0025] See also Figure 1-Figure 2 and Figure 4 The utility model provides a reversible annular seam welding device, the stabilizing device 5 includes an outer shell 51, a first mounting pad 52 is fixed to the inner wall of one side of the outer shell 51, a sponge ball 53 is connected to one side of the first mounting pad 52, one end of the sponge ball 53 is connected to a second mounting pad 54, a limiting pad 55 is fixed to one side of the second mounting pad 54, a moving column 56 is fixed to one side of the limiting pad 55, a positioning sleeve 57 is installed at one end of the moving column 56, a supporting spring 58 is connected to one side of the positioning sleeve 57, one end of the supporting spring 58 is fixedly connected to the outer shell 51, the outer shell 51 and the guide rail mounting plate 1 are fixedly connected, and one side of the positioning sleeve 57 is in contact with the outer side of the first cylinder 4.

[0026] During use of the device, after the first cylinder 4 is fixedly connected to the guide rail mounting plate 1 through the cylinder mounting plate 6, the outer shell 51 is fixedly connected to the guide rail mounting plate 1, and the sponge ball 53 in the outer shell 51 provides elastic force to push the limit pad 55 to move, and the support spring 58 on the outer side of the outer shell 51 pushes the positioning sleeve 57 to move, so that the corresponding surface of the positioning sleeve 57 fits against the outer side of the corresponding first cylinder 4, thereby reinforcing the outer side of the installation part of the first cylinder 4, further improving the stability of the overall structure, and achieving the purpose of improving the stability of the circumferential seam welding.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reversible circumferential seam welding device, comprising a guide rail mounting plate (1), characterized in that: A metal frame (2) is fixed at the bottom of the guide rail mounting plate (1), a limiting device (3) is fixed on the outer side of the metal frame (2), a cylinder mounting plate (6) is arranged at the bottom of the guide rail mounting plate (1), a first cylinder (4) is installed on one side of the cylinder mounting plate (6), a stabilizing device (5) is arranged at the bottom of the guide rail mounting plate (1), a universal joint (7) is connected to the outer side of the output shaft of the first cylinder (4), a guide rail body (8) is installed on the top of the guide rail mounting plate (1), and the guide rail body (8) A slider body (9) is slidably connected to the outer side of the slider body (9), a slider mounting plate (10) is fixed on the top of the slider body (9), a second cylinder (11) is arranged on the top of the slider mounting plate (10), a cylinder connecting plate (12) is installed on the top of the second cylinder (11), a large-sized rotary cylinder (13) is arranged on the top of the cylinder connecting plate (12), a bracket mounting plate (14) is installed on the top of the large-sized rotary cylinder (13), and a bracket (15) is fixed on the top of the bracket mounting plate (14).

2. The U-turnable circumferential seam welding device according to claim 1, characterized in that: The limiting device (3) comprises a connecting frame (31), a protective shell (32) is fixed on the top of the connecting frame (31), a ball screw (33) is rotatably connected inside the protective shell (32), a handle frame (34) is fixed to one end of the ball screw (33), two ball nuts (35) are threadedly connected to the outer side of the ball screw (33), a limiting frame (36) is fixed on the top of the ball nut (35), a mounting seat (37) is installed on the top of the limiting frame (36), and a reinforcing plate (38) is arranged on the top of the mounting seat (37).

3. The U-turnable circumferential seam welding device according to claim 2, characterized in that: A supporting and limiting plate (39) is fixed to one side of the reinforcing plate (38), a supporting pad (310) is arranged on the top of the protective shell (32), and the threads inside the two ball nuts (35) are in opposite directions.

4. The U-turnable circumferential seam welding device according to claim 2, characterized in that: The connecting frame (31) and the metal frame (2) are fixedly connected, and a through slot for accommodating the movement of the limiting frame (36) is provided on the top of the protective shell (32).

5. The reversible circumferential seam welding device according to claim 1, characterized in that: The stabilizing device (5) comprises an outer shell (51), a first mounting pad (52) is fixed to an inner wall of one side of the outer shell (51), a sponge ball (53) is connected to one side of the first mounting pad (52), one end of the sponge ball (53) is connected to a second mounting pad (54), a limiting pad (55) is fixed to one side of the second mounting pad (54), a moving column (56) is fixed to one side of the limiting pad (55), a positioning sleeve (57) is installed at one end of the moving column (56), and a supporting spring (58) is connected to one side of the positioning sleeve (57).

6. The U-turnable circumferential seam welding device according to claim 5, characterized in that: One end of the support spring (58) is fixedly connected to the outer shell (51), the outer shell (51) and the guide rail mounting plate (1) are fixedly connected, and one side of the positioning sleeve (57) is in contact with the outer side of the first cylinder (4).

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