Girth welding machine

Abstract

The utility model provides a girth welding machine. The girth welding machine comprises a rack, a supporting mechanism and a limiting mechanism. The supporting mechanism comprises a first linear driving unit, a first supporting roller, a second supporting roller and a rotary driving unit, and the first linear driving unit is connected with the first supporting roller and the second supporting roller; the driving unit is connected with the first supporting roller to drive the first supporting roller and the second supporting roller to get close to each other or get away from each other in the first direction, and the rotation driving unit is connected with the first supporting roller to drive the first supporting roller to rotate; the limiting mechanism comprises a second linear driving unit and a limiting roller, the second linear driving unit is arranged on the rack, the limiting roller is arranged above the supporting mechanism, and the second linear driving unit is connected with the limiting roller so as to drive the limiting roller to move up and down. The circular seam welding machine is better in adaptability and higher in working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a circumferential seam welding machine. Background Art

[0002] A girth welding machine is a machine that can complete various circular and annular welds. It is mainly used for welding carbon steel and stainless steel circular workpieces. The workpieces need to be fixed and turned during welding. However, most of the existing girth welding machines have the problem of being inconvenient to fix and rotate the workpieces, and are also difficult to adjust according to workpieces of different specifications, resulting in inconvenience in use, poor adaptability, and low work efficiency. Utility Model Content

[0003] The utility model aims to provide a girth welding machine, aiming to solve the problems of poor adaptability and inconvenient use of existing girth welding machines, resulting in low working efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Provided is a circumferential seam welding machine, comprising a frame, a supporting mechanism and a limiting mechanism;

[0006] The support mechanism comprises a first linear drive unit, a first support roller, a second support roller and a rotation drive unit, wherein the first linear drive unit is respectively connected to the first support roller and the second support roller to drive the first support roller and the second support roller to move closer to or away from each other along a first direction, and the rotation drive unit is connected to the first support roller to drive the first support roller to rotate;

[0007] The limiting mechanism includes a second linear drive unit and a limiting roller, the second linear drive unit is arranged on the frame, the limiting roller is arranged above the supporting mechanism, and the second linear drive unit is connected to the limiting roller to drive the limiting roller to move up and down.

[0008] Optionally, the support mechanism further includes two support seats, the first support roller is rotatably connected to one of the support seats, and the second support roller is rotatably connected to the other support seat.

[0009] Optionally, the first linear drive unit includes a turntable and a first screw transmission component, the first screw transmission component is horizontally arranged on the frame, the turntable is connected to the first screw transmission component, and the two support seats are respectively threadedly connected to the first screw transmission component with opposite thread rotation directions.

[0010] Optionally, the limiting mechanism further includes a limiting seat, the number of the limiting rollers is two, the two limiting rollers are arranged at intervals along the first direction, and the two limiting rollers are both rotatably connected to the limiting seat.

[0011] Optionally, the second linear drive unit includes a servo motor and a second screw transmission component, the second screw transmission component is arranged on the frame along the vertical direction, the servo motor is connected to the second screw transmission component, and the limit seat is threadedly connected to the second screw transmission component.

[0012] Optionally, the circumferential seam welding machine further comprises a supporting mechanism, wherein the supporting mechanism is arranged on one side of the supporting mechanism along a second direction, and the second direction is orthogonal to the first direction.

[0013] Optionally, the supporting mechanism includes a third linear drive unit and a supporting roller, and the third linear drive unit is connected to the supporting roller to drive the supporting roller to move up and down.

[0014] Optionally, the supporting mechanism further includes a supporting seat, the number of the supporting rollers is two, the two supporting rollers are arranged at intervals along the first direction, and the two supporting rollers are both rotatably connected to the supporting seat.

[0015] Optionally, the third linear drive unit includes a screw lift, and the screw lift is connected to the supporting seat to drive the supporting seat to move up and down.

[0016] Optionally, the circumferential seam welding machine also includes a positioning mechanism, wherein the positioning mechanism and the supporting mechanism are respectively arranged on both sides of the supporting mechanism along the second direction, and the positioning mechanism includes a positioning seat and a positioning roller, wherein the positioning seat is connected to the frame, and the positioning roller is rotatably connected to the positioning seat.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the circumferential seam welding machine provided by the utility model, the workpiece can be supported by providing a support mechanism, and the workpiece can be limited to the support mechanism by providing a limit mechanism to prevent the workpiece from moving in its own radial direction, thereby playing a fixing role. The first support roller is driven to rotate by providing a rotary drive unit, and the first support roller drives the workpiece to rotate through the friction between the first support roller and the workpiece, and the second support roller can also rotate with the rotation of the workpiece to prevent the workpiece from being stuck, thereby enabling the workpiece to be rotated while welding, and enabling circumferential seam welding to be performed more conveniently and efficiently. In addition, the distance between the first support roller and the second support roller can be adjusted by the first linear drive unit to adapt to workpieces of different specifications, with better adaptability, and can further improve the working efficiency of circumferential seam welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of the circumferential seam welding machine of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the circumferential seam welding machine of the utility model from another angle.

[0022] In the figure: 1. frame; 2. supporting mechanism; 21. first linear drive unit; 211. turntable; 212. first screw transmission member; 22. first supporting roller; 23. second supporting roller; 24. rotary drive unit; 25. supporting seat; 3. limiting mechanism; 31. second linear drive unit; 311. servo motor; 312. second screw transmission member; 32. limiting roller; 33. limiting seat; 4. supporting mechanism; 41. third linear drive unit; 42. supporting roller; 43. supporting seat; 5. positioning mechanism; 51. positioning seat; 52. positioning roller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0026] Combine the following Figure 1 and Figure 2 The utility model is described as a circular seam welding machine.

[0027] like Figure 1 and Figure 2 As shown, the utility model provides a circumferential seam welding machine, including a frame 1, a supporting mechanism 2 and a limiting mechanism 3; the supporting mechanism 2 includes a first linear drive unit 21, a first supporting roller 22, a second supporting roller 23 and a rotation drive unit 24, the first linear drive unit 21 is respectively connected to the first supporting roller 22 and the second supporting roller 23 to drive the first supporting roller 22 and the second supporting roller 23 to approach or move away from each other along a first direction, and the rotation drive unit 24 is connected to the first supporting roller 22 to drive the first supporting roller 22 to rotate; the limiting mechanism 3 includes a second linear drive unit 31 and a limiting roller 32, the second linear drive unit 31 is arranged on the frame 1, the limiting roller 32 is arranged above the supporting mechanism 2, and the second linear drive unit 31 is connected to the limiting roller 32 to drive the limiting roller 32 to move up and down.

[0028] For the convenience of explanation, in this embodiment, Figure 1 As shown, the first direction is the left-right direction, and the second direction is the front-back direction.

[0029] In the circumferential seam welding machine provided by the utility model, the support mechanism 2 can be provided to support the workpiece, and the limiting mechanism 3 can be provided to limit the workpiece on the support mechanism 2 to prevent the workpiece from moving in its radial direction and play a fixing role. The first support roller 22 is driven to rotate by the rotation drive unit 24, and the first support roller 22 drives the workpiece to rotate through the friction between the first support roller 22 and the workpiece, and the second support roller 23 can also rotate with the rotation of the workpiece to prevent the workpiece from being stuck, so that the workpiece can be rotated while welding, and the circumferential seam welding can be performed more conveniently and efficiently. In addition, the distance between the first support roller 22 and the second support roller 23 can be adjusted by the first linear drive unit 21, so as to adapt to workpieces of different specifications, with better adaptability, and the working efficiency of the circumferential seam welding can be further improved.

[0030] In some embodiments, the support mechanism 2 also includes two support seats 25, the first support roller 22 is rotatably connected to one of the support seats 25, and the second support roller 23 is rotatably connected to the other support seat 25. Specifically, the first support roller 22 is arranged on the left side of the second support roller 23, and the two support seats 25 mainly play a supporting role, while the first support roller 22 and the second support roller 23 play a role of jointly supporting the workpiece, and the supporting effect is better.

[0031] In some embodiments, the first linear drive unit 21 includes a turntable 211 and a first screw transmission member 212. The first screw transmission member 212 is arranged on the frame 1 in a horizontal direction. The turntable 211 is connected to the first screw transmission member 212. The two support seats 25 are respectively connected to the first screw transmission member 212 through opposite thread rotation directions. The distance between the first support roller 22 and the second support roller 23 can be more conveniently adjusted through the screw transmission, which makes the adjustment more convenient.

[0032] In some embodiments, the rotation driving unit 24 is a rotation motor, which can better drive the first supporting roller 22 to rotate.

[0033] In some embodiments, the limiting mechanism 3 also includes a limiting seat 33, and the number of limiting rollers 32 is two. The two limiting rollers 32 are arranged at intervals along the first direction, and the two limiting rollers 32 are rotatably connected to the limiting seat 33. By setting a rotatable limiting roller 32, the rotation of the workpiece will not be affected while limiting, which makes it more convenient to use and can reduce interference with the workpiece.

[0034] In some embodiments, the second linear drive unit 31 includes a servo motor 311 and a second screw transmission member 312. The second screw transmission member 312 is arranged on the frame 1 along the vertical direction. The servo motor 311 is connected to the second screw transmission member 312. The limit seat 33 is threadedly connected to the second screw transmission member 312. The position of the limit roller 32 can be more conveniently adjusted through the servo motor 311 and the screw transmission, which makes the adjustment more convenient.

[0035] In some embodiments, the circumferential seam welding machine also includes a supporting mechanism 4, which is arranged on one side of the supporting mechanism 2 along the second direction, and the second direction is orthogonal to the first direction. For some workpieces with longer specifications, the supporting mechanism 4 can better support the workpiece and prevent the workpiece from falling, and the supporting effect is better and the adaptability is better.

[0036] In some embodiments, the supporting mechanism 4 includes a third linear drive unit 41 and a supporting roller 42. The third linear drive unit 41 is connected to the supporting roller 42 to drive the supporting roller 42 to move up and down. By using the supporting roller 42 to support the workpiece, it plays a supporting role without affecting the rotation of the workpiece. It is more convenient to use and can reduce interference with the workpiece.

[0037] In some embodiments, the supporting mechanism 4 further includes a supporting seat 43, and the number of the supporting rollers 42 is two. The two supporting rollers 42 are spaced apart along the first direction, and the two supporting rollers 42 are both rotatably connected to the supporting seat 43, so that the supporting effect is better.

[0038] In some embodiments, the third linear drive unit 41 includes a screw lift, which is connected to the supporting seat 43 to drive the supporting seat 43 to move up and down. The position of the supporting seat 43 is adjusted by the screw lift, which makes the adjustment more convenient.

[0039] In some embodiments, the circumferential seam welding machine also includes a positioning mechanism 5, and the positioning mechanism 5 and the supporting mechanism 4 are respectively arranged on both sides of the supporting mechanism 2 along the second direction. The positioning mechanism 5 includes a positioning seat 51 and a positioning roller 52. The positioning seat 51 is connected to the frame 1, and the positioning roller 52 is rotatably connected to the positioning seat 51. The positioning mechanism 5 can be used to position and limit one side of the workpiece, so that the workpiece can be more stably maintained on the supporting mechanism 2, and the positioning roller 52 is used for positioning. While playing a positioning role, it will not affect the rotation of the workpiece. It is more convenient to use and can reduce interference with the workpiece.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circumferential seam welding machine, characterized in that: It comprises a frame (1), a supporting mechanism (2) and a limiting mechanism (3); The support mechanism (2) comprises a first linear drive unit (21), a first support roller (22), a second support roller (23) and a rotation drive unit (24); the first linear drive unit (21) is respectively connected to the first support roller (22) and the second support roller (23) to drive the first support roller (22) and the second support roller (23) to move closer to or farther from each other along a first direction; the rotation drive unit (24) is connected to the first support roller (22) to drive the first support roller (22) to rotate; The limiting mechanism (3) comprises a second linear drive unit (31) and a limiting roller (32); the second linear drive unit (31) is arranged on the frame (1); the limiting roller (32) is arranged above the supporting mechanism (2); the second linear drive unit (31) is connected to the limiting roller (32) to drive the limiting roller (32) to move up and down.

2. The circumferential seam welding machine according to claim 1, characterized in that: The support mechanism (2) further comprises two support seats (25), the first support roller (22) being rotatably connected to one of the support seats (25), and the second support roller (23) being rotatably connected to the other support seat (25).

3. The circumferential seam welding machine according to claim 2, characterized in that: The first linear drive unit (21) comprises a rotating disk (211) and a first screw transmission member (212); the first screw transmission member (212) is arranged on the frame (1) in a horizontal direction; the rotating disk (211) is connected to the first screw transmission member (212); and the two support seats (25) are respectively threadedly connected to the first screw transmission member (212) via opposite thread rotation directions.

4. The circumferential seam welding machine according to claim 1, characterized in that: The limiting mechanism (3) further comprises a limiting seat (33), the number of the limiting rollers (32) is two, the two limiting rollers (32) are arranged at intervals along the first direction, and the two limiting rollers (32) are both rotatably connected to the limiting seat (33).

5. The circumferential seam welding machine according to claim 4, characterized in that: The second linear drive unit (31) comprises a servo motor (311) and a second screw transmission member (312); the second screw transmission member (312) is arranged on the frame (1) along a vertical direction; the servo motor (311) is connected to the second screw transmission member (312); and the limit seat (33) is threadedly connected to the second screw transmission member (312).

6. The circumferential seam welding machine according to claim 1, characterized in that: The circumferential seam welding machine further comprises a supporting mechanism (4), wherein the supporting mechanism (4) is arranged on one side of the supporting mechanism (2) along a second direction, and the second direction is orthogonal to the first direction.

7. The circumferential seam welding machine according to claim 6, characterized in that: The supporting mechanism (4) comprises a third linear drive unit (41) and a supporting roller (42); the third linear drive unit (41) is connected to the supporting roller (42) to drive the supporting roller (42) to move up and down.

8. The circumferential seam welding machine according to claim 7, characterized in that: The supporting mechanism (4) further comprises a supporting seat (43), the number of the supporting rollers (42) is two, the two supporting rollers (42) are arranged at intervals along the first direction, and the two supporting rollers (42) are both rotatably connected to the supporting seat (43).

9. The circumferential seam welding machine according to claim 8, characterized in that: The third linear drive unit (41) comprises a screw lift, and the screw lift is connected to the supporting seat (43) to drive the supporting seat (43) to move up and down.

10. The circumferential seam welding machine according to claim 6, characterized in that: The circumferential seam welding machine also includes a positioning mechanism (5), wherein the positioning mechanism (5) and the supporting mechanism (4) are respectively arranged on both sides of the supporting mechanism (2) along the second direction, and the positioning mechanism (5) includes a positioning seat (51) and a positioning roller (52), wherein the positioning seat (51) is connected to the frame (1), and the positioning roller (52) is rotatably connected to the positioning seat (51).

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