Automatic fly cutting device for spiral welding steel pipe

Abstract

The utility model discloses an automatic fly-cutting device for spiral welded steel pipes, which is characterized in that pipe unloading devices are equidistantly mounted on the other side of the top of a bottom frame, the top of a track is slidably connected with a fly-cutting trolley, an in-situ proximity switch is mounted on one side of the top of the bottom frame, and a stop-position proximity switch is mounted on the top of the bottom frame and positioned on one side of the in-situ proximity switch; by means of the track, the fly cutting trolley, the in-situ proximity switch, the stop position proximity switch, the optoelectronic switch, the water-cooling cutting torch, the fly cutting wheel and the first air cylinder, when the spiral welding steel pipe reaches the fixed length required by a client, manual work can be replaced for automatic fly cutting; the fly-cutting device is simple in structure and convenient to operate, cutting equipment does not need to be frequently started and stopped, cutting precision is guaranteed, meanwhile, the fly-cutting device can meet the requirement for fixed-length automatic fly-cutting of the spiral welded steel pipe, fly-cutting work of the spiral welded steel pipe is high in efficiency and more automatic, and labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral welded steel pipe cutting, in particular to an automatic flying cutting device for spiral welded steel pipes. Background Art

[0002] Spiral welded steel pipe refers to a steel pipe with seams on the surface that is formed by bending steel strips or steel plates into round, square and other shapes and then welding them. According to different welding methods, it can be divided into arc welded pipes, high-frequency or low-frequency resistance welded pipes, gas welded pipes, furnace welded pipes, Bondi pipes, etc. According to the shape of the weld, it can be divided into straight seam welded pipes and spiral welded pipes. At present, before the application of spiral welded steel pipes, it is necessary to use a fly-cut device to fly-cut the spiral welded steel pipes according to the specified use size;

[0003] At present, the cutting of spiral welded steel pipes is done by manually opening or closing the cutting machine. After the cutting is completed, the pipes are manually unloaded and placed on the inspection stand. The manual cutting method causes high labor intensity and requires a lot of labor. Utility Model Content

[0004] The utility model provides an automatic flying cutting device for spiral welded steel pipes, which can effectively solve the problem proposed in the above background technology that the current flying cutting of spiral welded steel pipes to a fixed length adopts the method of manually opening or closing the cutting machine to perform the cutting operation, and after the cutting is completed, the pipes are manually unloaded and placed on a stand for inspection. The manual cutting method causes high labor intensity and high labor consumption for the workers.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic fly-cutting device for spiral welded steel pipes, comprising a base frame, a track is symmetrically installed on one side of the top of the base frame, a pipe unloader is equidistantly installed on the other side of the top of the base frame, and a stand is installed on the edge of the pipe unloader, an inclined plate is fixedly installed on the top of the stand along the inclined direction, a fly-cutting trolley is slidably connected to the top of the track, an in-situ proximity switch is installed on one side of the top of the base frame, and a termination position proximity switch is installed at the top of the base frame at a position on one side of the in-situ proximity switch, and a photoelectric switch is installed on the other side of the top of the base frame;

[0006] A reduction motor is installed at the top of the chassis at a position on one side of the track, a winding roller is connected to the end of the output shaft of the reduction motor, a winding box is installed at the top of the chassis corresponding to the winding roller, a pillar is fixedly installed on one side of the top of the flying cutting trolley, the top of the pillar is adjustably connected to a clamp seat through a connecting frame, and a water-cooled cutting torch is embedded and tightly connected to the inner side of the clamp seat;

[0007] A support seat is installed on the top of the other side of the top of the flying cutting trolley, and a swivel seat is embedded in the inner side of the support seat and is rotatably connected. A connecting swivel seat is fixedly installed on one side of the top of the swivel seat, and a flying cutting wheel is embedded in the inner side of the connecting swivel seat and is rotatably connected. A first cylinder is installed on the edge of the flying cutting trolley, and the output end of the first cylinder is rotatably connected to the edge of the swivel seat.

[0008] Preferably, the photoelectric switch and the first cylinder are both connected to a PLC controller, and the home position proximity switch and the end position proximity switch are both adjustably mounted on the top of the chassis via a sliding bracket.

[0009] Preferably, a traction rope is provided on the outside of the winding roller and the winding box, and one end of the traction rope is passed around the winding wheel inside the winding box and connected to the flying cutting trolley, and the other end of the traction rope is wound around the outside of the winding roller.

[0010] Preferably, the connecting frame can drive the clamp seat and the water-cooled cutting torch to adjust their positions in the horizontal and vertical directions. A rotating rod is provided on the edge of the clamp seat, and the rotating rod drives the clamp plate inside the clamp seat to move, and the clamp plate fits tightly with the edge of the water-cooled cutting torch.

[0011] Preferably, the pipe unloader comprises an engaging rotating groove, a support frame, a support inclined seat, a pipe unloading wheel, a connecting rod, a driving connecting rod and a second cylinder;

[0012] An engaging rotation groove is provided on the inner side of the top of the base frame at the edge of the platform, and a support frame is embedded and rotatably connected to the inner side of the engaging rotation groove. Two inclined support seats are symmetrically installed on both sides of the top of the support frame, and the tops of the support seats are rotatably connected to pipe unloading wheels;

[0013] A connecting rod is connected to the middle part of the inner side of the support frame, and the connecting rod is rotatably connected to the inner side of the driving connecting rod, and a second cylinder is fixedly installed on one end of the driving connecting rod.

[0014] Preferably, the pipe unloading wheel is slidably connected to the inner side of the top of the supporting inclined seat through a sliding bottom plate;

[0015] A connecting block is arranged at the outer side of the driving connecting rod corresponding to the connecting rod, and the connecting rod is rotatably connected to the connecting block.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0017] 1. Through the track, flying cutting trolley, in-situ proximity switch, end position proximity switch, photoelectric switch, water-cooled cutting torch, flying cutting wheel and the first cylinder, the spiral welded steel pipe can be automatically flying cut when it reaches the fixed length required by the customer, without the need to frequently open and close the cutting equipment, thus ensuring the cutting accuracy. At the same time, the flying cutting device can meet the requirements of automatic flying cutting of spiral welded steel pipes, making the flying cutting of spiral welded steel pipes more efficient and automated, thus saving labor costs.

[0018] 2. The pipe beveling device is formed by engaging the rotating groove, rotating seat, supporting inclined seat, pipe unloading wheel, connecting rod, driving connecting rod and second cylinder. With the stand and inclined plate, after the spiral welded steel pipe is cut, the pipe unloading wheel is driven by the second cylinder to deflect, and the support of the pipe unloading wheel on the spiral welded steel pipe is released, so that the spiral welded steel pipe can be smoothly rolled to the surface of the inclined plate, and the guiding effect of the inclined plate is used to make the spiral welded steel pipe automatically unloaded, which is convenient to operate and has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model flying cutting trolley;

[0023] Figure 3 It is a structural schematic diagram of the fly-cutting wheel of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the pipe unloading wheel of the utility model;

[0025] Numbers in the figure: 1. Base frame; 2. Track; 3. Fly-cutting trolley; 4. Home position proximity switch; 5. End position proximity switch; 6. Photoelectric switch; 7. Speed ​​reduction motor; 8. Winding roller; 9. Winding box; 10. Pillar; 11. Connecting frame; 12. Clamping seat; 13. Water-cooled cutting torch; 14. Support seat; 15. Rotating seat; 16. Connecting swivel seat; 17. Fly-cutting wheel; 18. First cylinder; 19. Engaging rotating groove; 20. Support frame; 21. Stand; 22. Inclined plate; 23. Support inclined seat; 24. Pipe unloading wheel; 25. Connecting rod; 26. Driving connecting rod; 27. Second cylinder. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Example: Figure 1-4As shown, the utility model provides a technical solution, an automatic fly-cutting device for spiral welded steel pipes, comprising a base frame 1, a track 2 is symmetrically installed on one side of the top of the base frame 1, a pipe unloader is equidistantly installed on the other side of the top of the base frame 1, and a stand 21 is installed on the edge of the pipe unloader, an inclined plate 22 is fixedly installed on the top of the stand 21 along the inclined direction, a fly-cutting trolley 3 is slidably connected to the top of the track 2, an in-situ proximity switch 4 is installed on one side of the top of the base frame 1, and a termination position proximity switch 5 is installed on the top of the base frame 1 at a position on one side of the in-situ proximity switch 4, and a photoelectric switch 6 is installed on the other side of the top of the base frame 1;

[0028] A reduction motor 7 is installed at the top of the chassis 1 at a position on one side of the track 2. A winding roller 8 is connected to the output shaft end of the reduction motor 7. A winding box 9 is installed at the top of the chassis 1 corresponding to the winding roller 8. A traction rope is arranged on the outside of the winding roller 8 and the winding box 9, and one end of the traction rope is passed around the winding wheel inside the winding box 9 and connected to the flying cutting trolley 3. The other end of the traction rope is wound around the outside of the winding roller 8, so that the flying cutting trolley 3 can be pulled by the winding roller 8 to reset and move. A pillar 10 is fixedly installed on one side of the top of the flying cutting trolley 3. The pillar 1 The top of 0 is adjustably connected with a clamp seat 12 through a connecting frame 11, and a water-cooled cutting torch 13 is embedded and tightly connected to the inner side of the clamp seat 12. The connecting frame 11 can drive the clamp seat 12 and the water-cooled cutting torch 13 to adjust their positions in the horizontal direction and the vertical direction. A rotating rod is provided at the edge of the clamp seat 12, and the rotating rod drives the clamp plate inside the clamp seat 12 to move. The clamp plate is tightly fitted with the edge of the water-cooled cutting torch 13, which is convenient for adjusting the cutting position of the water-cooled cutting torch 13 and facilitating the connection and disassembly between the water-cooled cutting torch 13 and the clamp seat 12;

[0029] A support seat 14 is installed on the top of the other side of the top of the flying cutting trolley 3, and a swivel seat 15 is embedded in the inner side of the support seat 14 and is rotatably connected. A connecting swivel seat 16 is fixedly installed on one side of the top of the swivel seat 15, and a flying cutting wheel 17 is embedded in the inner side of the connecting swivel seat 16 and is rotatably connected. A first cylinder 18 is installed on the edge of the flying cutting trolley 3, and the photoelectric switch 6 and the first cylinder 18 are both connected to the PLC controller. The in-situ proximity switch 4 and the end position proximity switch 5 are both adjustably installed on the top of the base frame 1 through a sliding bracket, which is convenient for controlling the start of the first cylinder 18 and facilitating the adjustment of the installation position of the in-situ proximity switch 4 and the end position proximity switch 5, so as to realize the adjustment of the starting position and cutting position of the spiral welded steel pipe, and the output end of the first cylinder 18 is rotatably connected to the edge of the swivel seat 15.

[0030] The pipe unloader comprises an engaging rotating groove 19, a supporting frame 20, a supporting inclined seat 23, a pipe unloading wheel 24, a connecting rod 25, a driving connecting rod 26 and a second cylinder 27;

[0031] An engaging groove 19 is provided on the inner side of the top of the base frame 1 at the edge of the platform 21, and a support frame 20 is embedded and rotatably connected to the inner side of the engaging groove 19. Two inclined support seats 23 are symmetrically installed on both sides of the top of the support frame 20, and the tops of the support seats 23 are rotatably connected to the pipe unloading wheels 24. The pipe unloading wheels 24 can be slidably connected to the inner side of the top of the support seats 23 through a sliding bottom plate, so that the installation position of the pipe unloading wheels 24 can be adjusted conveniently, so as to support spiral welded steel pipes of different diameters.

[0032] A connecting rod 25 is connected to the middle part of the inner side of the support frame 20, and the connecting rod 25 is rotatably connected to the inner side of the driving connecting rod 26. A connecting block is provided on the outer side of the driving connecting rod 26 corresponding to the connecting rod 25, and the connecting rod 25 and the connecting block are rotatably connected, so that the supporting inclined seat 23 can be driven to deflect by the driving connecting rod 26. A second cylinder 27 is fixedly installed on one end of the driving connecting rod 26.

[0033] The working principle and use process of the utility model: in the actual working process of the automatic flying cutting device for spiral welded steel pipes, firstly, an in-situ proximity switch 4 is installed at the in-situ position of the flying cutting trolley 3 to detect that the flying cutting trolley 3 is in the in-situ state, and a photoelectric switch 6 is installed at the required length position of the sizing, and the length of the steel pipe is measured by the photoelectric switch 6. When the flying cutting trolley 3 reaches the end position, the end position proximity switch 5 here detects the cutting point completed by the flying cutting device;

[0034] The program is written by Mitsubishi GX work2 software to collect the working status of each component. During the production process, when the steel pipe reaches the sensing range of the photoelectric switch 6 and the fly-cutting trolley 3 is in the original position, a signal is fed back to the PLC controller. After receiving the feedback signals from each component, the PLC controller automatically supplies power to the first cylinder 18, and the fly-cutting wheel 17 is lifted to the outer wall of the steel pipe and rotated along the outer wall of the steel pipe through the extension of the first cylinder 18, and the fly-cutting trolley 3 automatically moves along the track 2;

[0035] At the same time, the PLC controller controls the water-cooled cutting torch 13 to power on and start cutting. When the flying cutting carriage 3 reaches the end position near the switch 5, the PLC controller receives a signal to cut off the power to the first cylinder 18 and reset the flying cutting wheel 17. At this time, the flying cutting carriage 3 stops moving and the second cylinder 27 is powered.

[0036] The second cylinder 27 is used to drive the driving connecting rod 26 to move, and the driving connecting rod 26 and the connecting rod 25 are used to drive the supporting inclined seat 23 and the pipe unloading wheel 24 to deflect and perform the pipe unloading operation. After the automatic pipe unloading is completed, the PLC controller controls the reduction motor 7 to operate and cooperate with the winding roller 8, the winding box 9 and the traction rope to pull the flying cutting trolley 3 to the original position to complete the entire automatic flying cutting process.

[0037] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is 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 utility model shall be included in the protection scope of the present utility model.

Claims

1. An automatic fly-cutting device for spiral welded steel pipes, comprising a base frame (1), characterized in that: A track (2) is symmetrically mounted on one side of the top of the base frame (1), a pipe unloader is equidistantly mounted on the other side of the top of the base frame (1), and a stand (21) is mounted on the edge of the pipe unloader, a sloping plate (22) is fixedly mounted on the top of the stand (21) in an inclined direction, a flying cutting trolley (3) is slidably connected to the top of the track (2), an in-situ proximity switch (4) is mounted on one side of the top of the base frame (1), and a termination position proximity switch (5) is mounted on the top of the base frame (1) at a position on one side of the in-situ proximity switch (4), and a photoelectric switch (6) is mounted on the other side of the top of the base frame (1); A reduction motor (7) is installed at a position on one side of the track (2) at the top of the base frame (1), and a winding roller (8) is connected to the end of the output shaft of the reduction motor (7). A winding box (9) is installed at the top of the base frame (1) corresponding to the winding roller (8). A support (10) is fixedly installed on one side of the top of the flying cutting trolley (3). The top of the support (10) is adjustably connected to a clamping seat (12) through a connecting frame (11), and a water-cooled cutting torch (13) is embedded and tightly connected to the inner side of the clamping seat (12); A support seat (14) is installed on the top of the other side of the top of the flying cutting trolley (3), a rotating seat (15) is embedded in the inner side of the support seat (14) and is rotatably connected, a connecting rotating seat (16) is fixedly installed on one side of the top of the rotating seat (15), and a flying cutting wheel (17) is embedded in the inner side of the connecting rotating seat (16) and is rotatably connected, and a first cylinder (18) is installed on the edge of the flying cutting trolley (3), and the output end of the first cylinder (18) is rotatably connected to the edge of the rotating seat (15).

2. The automatic fly-cutting device for spiral welded steel pipe according to claim 1 is characterized in that: The photoelectric switch (6) and the first cylinder (18) are both connected to a PLC controller, and the home position proximity switch (4) and the end position proximity switch (5) are both adjustably mounted on the top of the base frame (1) via a sliding bracket.

3. The automatic fly-cutting device for spiral welded steel pipe according to claim 1 is characterized in that: The outer sides of the winding roller (8) and the winding box (9) are both provided with traction ropes, and one end of the traction rope is passed around the winding wheel inside the winding box (9) and connected to the flying cutting trolley (3), and the other end of the traction rope is wound around the outer side of the winding roller (8).

4. The automatic fly-cutting device for spiral welded steel pipe according to claim 1 is characterized in that: The connecting frame (11) can drive the clamping seat (12) and the water-cooled cutting torch (13) to adjust their positions in the horizontal direction and the vertical direction. A rotating rod is provided on the edge of the clamping seat (12), and the rotating rod drives the clamping plate inside the clamping seat (12) to move, and the clamping plate is tightly fitted with the edge of the water-cooled cutting torch (13).

5. The automatic fly-cutting device for spiral welded steel pipe according to claim 1 is characterized in that: The pipe unloader comprises an engaging rotating groove (19), a supporting frame (20), a supporting inclined seat (23), a pipe unloading wheel (24), a connecting rod (25), a driving connecting rod (26) and a second cylinder (27); An engaging rotation groove (19) is provided on the inner side of the top of the base frame (1) at the edge of the platform (21), and a support frame (20) is embedded and rotatably connected to the inner side of the engaging rotation groove (19). Two inclined support seats (23) are symmetrically installed on both sides of the top of the support frame (20), and the tops of the support seats (23) are rotatably connected to pipe unloading wheels (24); A connecting rod (25) is connected to the middle of the inner side of the support frame (20), and the connecting rod (25) is rotatably connected to the inner side of a driving connecting rod (26), and a second cylinder (27) is fixedly mounted on one end of the driving connecting rod (26).

6. The automatic fly-cutting device for spiral welded steel pipe according to claim 5 is characterized in that: The pipe unloading wheel (24) is slidably connected to the inner side of the top of the supporting inclined seat (23) via a sliding bottom plate; A connecting block is provided on the outer side of the driving connecting rod (26) corresponding to the connecting rod (25), and the connecting rod (25) and the connecting block are rotatably connected.

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