A fully automatic multi-station pipe joint circumferential seam welding machine

Abstract

The invention provides a full-automatic multi-station pipe joint circumferential seam welding machine, which belongs to the field of pipe fitting circumferential seam welding equipment. The machine comprises a turntable and a main servo motor for driving the turntable to rotate, as well as a first placement station arranged around the turntable for placing a first pipe fitting on the turntable, a second placement station for placing a second pipe fitting on the turntable, a welding station for welding the connecting circumferential seam of the first pipe fitting and the second pipe fitting, and a recycling station for recycling the welded pipe fittings. The welding stations comprise welding guns and welding servo motors for driving the welded pipe fittings to rotate. Through the cooperation of the turntable arranged in the center and the first placement station, the second placement station, the welding station and the recycling station arranged around the turntable, the effect of manually putting the fittings into two vibration plates and automatically completing other actions is achieved. The machine has the advantages of high automation, high efficiency, no welding time occupied by the positioning of the fittings and reliable operation.

Description

Technical Field

[0001] The invention belongs to the field of pipe fitting girth welding equipment, and in particular relates to a full-automatic multi-station pipe joint girth welding machine. Background Art

[0002] With the rapid development of modern industrial production, the number of pipe fittings in various products is increasing, among which welding is the most commonly used and largest processing method. The welding device is a process equipment that positions and fastens the welded parts for welding.

[0003] However, most of the current welding devices only have positioning and clamping functions, and do not have the ability to weld. In addition, during the welding process, people need to manually place each part of the pipe fitting in the fixture and clamp it, and then manually use the welding gun to weld the pipe fitting. The degree of automation is low, not only the welding efficiency is low, but also a lot of manpower and time are consumed. At the same time, the welding quality is unstable, and the defective and scrap rates are high. Summary of the invention

[0004] Based on the above problems in the prior art, the present invention provides a fully automatic multi-station pipe joint circumferential seam welding machine, characterized in that it includes a turntable and a main servo motor for driving the turntable to rotate, as well as a first placement station arranged around the turntable for placing a first pipe fitting on the turntable, a second placement station for placing a second pipe fitting on the turntable, a welding station for welding the connecting circumferential seam of the first pipe fitting and the second pipe fitting, and a recycling station for recycling the welded pipe fitting; the welding station includes a welding gun and a welding servo motor for driving the welded pipe fitting to rotate.

[0005] Among them, the main servo motor is arranged on the main frame, and the power output end of the main servo motor is connected to a reducer fixedly installed on the main frame, the reducer is then connected to a cam divider fixedly installed on the main frame, the top of the cam divider is then connected to a turntable, and a workstation fixture is fixedly arranged on the upper surface of the turntable; the main servo motor drives the turntable to rotate intermittently through the reducer and the cam divider, and the rotation plane of the turntable coincides with the horizontal plane.

[0006] Among them, the first placement station includes a first frame and a first vibration plate, the first frame is fixedly installed on one side of the main frame, the first vibration plate is fixedly installed on the first frame and the pipe output channel of the first vibration plate extends above the rotation track of the station fixture of the turntable.

[0007] Among them, the second placement station includes a second frame and a second vibration plate, the second frame is fixedly mounted on one side of the main frame, the second vibration plate is fixedly mounted on the second frame and the pipe output channel of the second vibration plate extends above the rotation track of the station fixture of the turntable.

[0008] Wherein, the welding station comprises a welding servo motor, an upper cylinder, a downward pressure positioning fixture, a first linear guide, a downward pressure cylinder and a welding gun, the first linear guide is vertically fixedly installed on the main frame, the downward pressure positioning fixture is installed on the upper part of the first linear guide through a slider to slide up and down, the downward pressure cylinder is fixedly installed on the top of the first linear guide and the power output end of the downward pressure cylinder is fixedly connected to the slider where the downward pressure positioning fixture is located, and the downward pressure cylinder drives the downward pressure positioning fixture to move up and down through the slider; the welding gun is fixedly connected to the top of the first linear guide through an L-shaped connecting rod, and the height of the welding gun is adapted to the height of the welding point of the welding station to be welded; one side of the welding servo motor is installed on the lower part of the first linear guide through a slider to slide up and down, the upper cylinder is fixedly installed at the bottom of the first linear guide and the upper cylinder drives the welding servo motor to move up and down, and the top power output end of the welding servo motor is connected to the station fixture through a clutch and drives the station fixture to rotate.

[0009] Among them, the recycling station includes a second linear guide rail, a picking cylinder, a rotating cylinder and pneumatic fingers. The second linear guide rail is vertically fixedly installed on the main frame. The rotating cylinder is installed on the second linear guide rail to slide up and down through a slider. The picking cylinder is fixedly installed at the bottom of the second linear guide rail and the power output end of the picking cylinder is transmission-connected to the slider where the rotating cylinder is located, driving the rotating cylinder to slide up and down. The power output end of the rotating cylinder is connected to a pneumatic finger for clamping the welded pipe fittings through a connecting rod. The rotating cylinder drives the pneumatic finger to rotate around the rotating cylinder.

[0010] Among them, the first placement station, the second placement station, the welding station and the recovery station are respectively arranged around the turntable, and each station differs by 90°; the station fixture is arranged on the turntable, and every time the turntable rotates 90°, the station fixture rotates from the working position corresponding to the previous station to the working position corresponding to the next station.

[0011] The beneficial effect of the present invention is that through the coordination of the central turntable and the first placement station, the second placement station, the welding station and the recovery station arranged around the turntable, it is achieved that only the accessories of the pipe fittings need to be manually put into the two vibration plates, and other actions are automatically completed. It has the advantages of high automation, high efficiency, and the positioning of accessories does not occupy welding time and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , a three-dimensional structural schematic diagram of a fully automatic multi-station pipe joint girth welding machine.

[0013] Figure 2, a schematic diagram of the top view of the structure of a fully automatic multi-station pipe joint girth welding machine.

[0014] Figure 3 , Figure 2 Schematic diagram of the cross-sectional structure at line AA.

[0015] Figure 4 , Figure 2 Schematic diagram of the cross-sectional structure at line BB.

[0016] Figure 5 , structural diagram of the welded pipe fittings in the embodiment. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top" and "bottom" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] As attached Figure 1-4 The fully automatic multi-station pipe joint circumferential seam welding machine shown in the figure is used for welding as shown in the embodiment Figure 5The pipe welding machine shown in the figure includes a turntable 11 and a main servo motor 12 for driving the turntable 11 to rotate, and a first placement station 2 arranged around the turntable 11 for placing a first pipe 61 on the turntable 11, a second placement station 3 for placing a second pipe 62 on the turntable 11, a welding station 4 for welding the connecting annular seam of the first pipe 61 and the second pipe 62, and a recycling station 5 for recycling the welded pipes, and a container for containing the welded pipes can be arranged on one side of the recycling station 5; the main servo motor 12 is arranged on the main frame 13, and the power output end of the main servo motor 12 is connected to a reducer 14 fixedly installed on the main frame 13, and the reducer 14 is further connected to the fixed frame 13. A cam divider 15 is installed on the main frame 13, and the top of the cam divider 15 is then driven and connected to the turntable 11. Four station fixtures 16 are fixedly arranged on the upper surface of the turntable 11, and each station fixture 16 is 90° apart; the main servo motor 12 drives the turntable 11 to rotate intermittently through the reducer 14 and the cam divider 15, and the rotation plane of the turntable 11 coincides with the horizontal plane; the first placement station 2 includes a first frame 21 and a first vibration plate 22, the first frame 21 is fixedly installed on one side of the main frame 13, the first vibration plate 22 is fixedly installed on the first frame 21, and the pipe output channel 23 of the first vibration plate 22 extends to above the rotation track of the station fixture 16 of the turntable 11; The second placement station 3 includes a second frame 31 and a second vibration plate 32, the second frame 31 is fixedly mounted on one side of the main frame 13, the second vibration plate 32 is fixedly mounted on the second frame 31, and the pipe output channel 23 of the second vibration plate 32 extends to above the rotation track of the station fixture 16 of the turntable 11; the welding station 4 includes a welding servo motor 42, an upper cylinder 43, a downward pressure positioning fixture 44, a first linear guide 45, a downward pressure cylinder 46 and a welding gun 41, the first linear guide 45 is vertically fixedly mounted on the main frame 13, the downward pressure positioning fixture 44 is mounted on the upper part of the first linear guide 45 by sliding up and down through a slider, and the downward pressure cylinder 46 is fixedly mounted on the first linear guide 4 5 The power output end of the downward pressure cylinder 46 is fixedly connected to the slider where the downward pressure positioning fixture 44 is located, and the downward pressure cylinder 46 drives the downward pressure positioning fixture 44 to move up and down through the slider; the welding gun 41 is fixedly connected to the top of the first linear guide rail 45 through an L-shaped connecting rod, and the height of the welding gun 41 is adapted to the height of the welding point of the welding station 4 to be welded; one side of the welding servo motor 42 is installed at the lower part of the first linear guide rail 45 through a slider to slide up and down, the upper cylinder 43 is fixedly installed at the bottom of the first linear guide rail 45 and the upper cylinder 43 drives the welding servo motor 42 to move up and down, and the top power output end of the welding servo motor 42 is connected to the station fixture 16 through a clutch 47 and drives the station fixture 16 to rotate;The recycling station 5 includes a second linear guide 51, a pick-up cylinder 52, a rotating cylinder 53 and a pneumatic finger 54. The second linear guide 51 is vertically fixedly installed on the main frame 13. The rotating cylinder 53 is installed on the second linear guide 51 by sliding up and down through a slider. The pick-up cylinder 52 is fixedly installed at the bottom of the second linear guide 51 and the power output end of the pick-up cylinder 52 is connected to the slider where the rotating cylinder 53 is located, driving the rotating cylinder 53 to slide up and down. The power output end of the rotating cylinder 53 is connected to a pneumatic finger 54 for clamping the welded pipe fittings through a connecting rod. The rotating cylinder 53 drives the pneumatic finger 54 to rotate around the rotating cylinder 53. ;

[0021] As a preferred embodiment, the first placement station 2, the second placement station 3, the welding station 4 and the recovery station 5 are respectively arranged around the turntable 11 in sequence, and each station differs by 90°; the station fixture 16 is arranged on the turntable 11, and whenever the turntable 11 rotates 90°, the station fixture 16 rotates from the working position corresponding to the previous station to the working position corresponding to the next station.

[0022] When the welding machine in the above embodiment is used, it is only necessary to manually put the first pipe 61 and the second pipe 62 into the two vibration plates respectively;

[0023] At the first placement station 2, the first pipe 61 is transported to the top of the station fixture 16 corresponding to the first placement station 2 by the vibration of the first vibration plate 22, the gate (not shown) of the first vibration plate 22 is opened, and the first pipe 61 is inserted into the station fixture 16 under the action of gravity, and the turntable 11 rotates 90° to send the first pipe 61 to the second placement station 3;

[0024] At the second placement station 3, the second pipe 62 is transported to the top of the station fixture 16 corresponding to the second placement station 3 by the vibration of the second vibration plate 32, the gate (not shown in the figure) of the second vibration plate 32 is opened, and the second pipe 62 is inserted into the station fixture 16 under the action of gravity and superimposed on the first pipe 61, and the turntable 11 rotates 90° to send the pipe to the welding station 4.

[0025] At welding station 4, the downward pressure cylinder 46 is pushed out, driving the downward pressure positioning fixture 44 downward along the first linear guide rail 45 to press the pipe fitting; then, the upward pressure cylinder 43 is pushed out, driving the welding servo motor 42 upward along the first linear guide rail 45, the clutch 47 is connected to the station fixture 16, the welding servo motor 42 rotates, and the welding gun 41 starts welding at the same time. When the welding servo motor 42 drives the station fixture 16 to rotate more than 360 degrees, the welding is completed, the downward pressure cylinder 46 and the upward pressure cylinder 43 are reset, the clutch 47 is disengaged, the turntable 11 rotates 90°, and the pipe fitting is sent to the recycling station 5.

[0026] At the recycling station 5, the picking cylinder 52 retreats, driving the pneumatic fingers 54 to fall, and the pneumatic fingers 54 clamp the top cylindrical part of the workpiece, and the picking cylinder 52 pushes out to take out the pipe. After the rotating cylinder 53 rotates 90 degrees, the pneumatic fingers 54 open, and the pipe falls into the recycling container. The rotating cylinder 53 resets, and a welding cycle is completed.

[0027] The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A fully automatic multi-station pipe joint circumferential seam welding machine, characterized in that: The invention comprises a rotating disk (11) and a main servo motor (12) for driving the rotating disk (11) to rotate, and a first placement station (2) arranged around the rotating disk (11) for placing a first pipe (61) on the rotating disk (11), a second placement station (3) for placing a second pipe (62) on the rotating disk (11), a welding station (4) for welding the connecting annular seam between the first pipe (61) and the second pipe (62), and a recycling station (5) for recycling the welded pipe. The welding station (4) comprises a welding gun (41) and a welding servo motor (42) for driving the welding pipe to rotate; the welding station (4) comprises a welding servo motor (42), an upper cylinder (43), a downward pressing positioning fixture (44), a first linear guide rail (45), a downward pressing cylinder (46) and a welding gun (41), wherein the first linear guide rail (45) is vertically fixedly mounted on the main frame (13), and the downward pressing positioning fixture (44) is moved up and down by a slider. The first linear guide (45) is slidably mounted on the upper part of the first linear guide (45); the downward pressure cylinder (46) is fixedly mounted on the top of the first linear guide (45) and the power output end of the downward pressure cylinder (46) is fixedly connected to the slider where the downward pressure positioning fixture (44) is located, and the downward pressure cylinder (46) drives the downward pressure positioning fixture (44) to move up and down through the slider; the welding gun (41) is fixedly connected to the top of the first linear guide (45) through an L-shaped connecting rod, and the height of the welding gun (41) is adapted to the height of the welding point of the welding station (4) to be welded; one side of the welding servo motor (42) is slidably mounted on the lower part of the first linear guide (45) through the slider, the upper cylinder (43) is fixedly mounted on the bottom of the first linear guide (45) and the upper cylinder (43) drives the welding servo motor (42) to move up and down, and the top power output end of the welding servo motor (42) is transmission-connected to the station fixture (16) through a clutch (47) and drives the station fixture (16) to rotate.

2. The fully automatic multi-station pipe joint circumferential seam welding machine according to claim 1, characterized in that: The main servo motor (12) is arranged on the main frame (13), and the power output end of the main servo motor (12) is connected to a reducer (14) fixedly mounted on the main frame (13), the reducer (14) is further connected to a cam divider (15) fixedly mounted on the main frame (13), the top of the cam divider (15) is further connected to a turntable (11), and a station fixture (16) is fixedly arranged on the upper surface of the turntable (11); the main servo motor (12) drives the turntable (11) to rotate intermittently through the reducer (14) and the cam divider (15), and the rotation plane of the turntable (11) coincides with the horizontal plane.

3. The fully automatic multi-station pipe joint circumferential seam welding machine according to claim 2 is characterized in that: The first placement station (2) comprises a first frame (21) and a first vibration plate (22), wherein the first frame (21) is fixedly mounted on one side of the main frame (13), and the first vibration plate (22) is fixedly mounted on the first frame (21), and the pipe output channel (23) of the first vibration plate (22) extends above the rotation track of the station fixture (16) of the turntable (11).

4. The fully automatic multi-station pipe joint circumferential seam welding machine according to claim 3, characterized in that: The second placement station (3) comprises a second frame (31) and a second vibration plate (32), wherein the second frame (31) is fixedly mounted on one side of the main frame (13), and the second vibration plate (32) is fixedly mounted on the second frame (31), and the pipe output channel (23) of the second vibration plate (32) extends above the rotation track of the station fixture (16) of the turntable (11).

5. The fully automatic multi-station pipe joint circumferential seam welding machine according to claim 4, characterized in that: The recycling station (5) comprises a second linear guide rail (51), a pickup cylinder (52), a rotating cylinder (53) and a pneumatic finger (54). The second linear guide rail (51) is vertically fixedly mounted on the main frame (13). The rotating cylinder (53) is mounted on the second linear guide rail (51) by sliding up and down through a slider. The pickup cylinder (52) is fixedly mounted at the bottom of the second linear guide rail (51) and the power output end of the pickup cylinder (52) is transmission-connected to the slider where the rotating cylinder (53) is located, driving the rotating cylinder (53) to slide up and down. The power output end of the rotating cylinder (53) is connected to a pneumatic finger (54) for clamping the welded pipe fittings through a connecting rod. The rotating cylinder (53) drives the pneumatic finger (54) to rotate around the rotating cylinder (53).

6. The fully automatic multi-station pipe joint circumferential seam welding machine according to claim 5, characterized in that: The first placement station (2), the second placement station (3), the welding station (4) and the recovery station (5) are respectively arranged around the turntable (11), and each station differs by 90°; the station fixture (16) is arranged on the turntable (11), and each time the turntable (11) rotates 90°, the station fixture (16) rotates from a working position corresponding to the previous station to a working position corresponding to the next station.

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