A kind of follow-up centering device for pipe cutting

Abstract

The utility model provides a pipe cutting follow-up centering device, which belongs to the technical field of pipe cutting, and comprises a connecting bracket, roller bases are arranged at both ends of the top surface of the connecting bracket, a first roller is rotatably connected between the two roller bases, a plurality of guide rods are fixed at the positions corresponding to the roller bases at both ends of the top surface of the connecting bracket, a plurality of guide holes are opened on the roller base, the top ends of the guide rods pass through the guide holes, and a compression spring is sleeved on the outer side of the guide rods. The utility model can follow the rotation of the pipe and move up and down, and can also realize the centering of the pipe and lift the centering device, thereby improving the accuracy and efficiency of pipe cutting.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe cutting, and in particular relates to a pipe cutting follow-up centering device. Background Art

[0002] Laser cutting machines have the advantages of energy saving and high cutting accuracy, but during the laser cutting process, because the pipe is too long, its own weight will sag downward, affecting the processing accuracy. Therefore, it is usually necessary to set up a bracket to hold up the drooping pipe so that the pipe can be kept horizontal during the cutting process.

[0003] When cutting pipes, the laser cutting machine needs to rotate the pipes while cutting. The existing bracket is only suitable for cutting round pipes. When rotating and cutting special-shaped pipes such as rectangular pipes or angle steels, the distance between the rotation center of the pipe and the bracket is always changing, which will cause the pipe to shake up and down, which will not only affect the cutting accuracy, but also damage the motor that drives the pipe to rotate.

[0004] In addition, when the laser cutting machine is cutting the pipe, it is necessary to use a centering device to correct the pipe. The transmission centering device is usually set on both sides of the bracket, and the pipe is centered by clamping on the left and right. To ensure the accuracy of the centering, the height of the centering device is higher than the bracket. When loading the material, the staff needs to lift the pipe and pass over the top of the centering device, which affects the cutting efficiency of the pipe. Utility Model Content

[0005] In view of the defects or shortcomings in the prior art, the utility model provides a pipe cutting follow-up centering device, which can follow the rotation and rise and fall of the pipe, and can also realize the centering of the pipe and lift and lower the centering device, thereby improving the accuracy and efficiency of pipe cutting.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An embodiment of the utility model provides a pipe cutting follow-up centering device, including a connecting bracket, roller bases are arranged at both ends of the top surface of the connecting bracket, a first roller is rotatably connected between the two roller bases, a plurality of guide rods are fixed at positions corresponding to the roller bases at both ends of the top surface of the connecting bracket, a plurality of guide holes are opened on the roller base, the top ends of the guide rods pass through the guide holes, and a compression spring is sleeved on the outer side of the guide rods.

[0008] Furthermore, the connecting bracket is an L-shaped structure, including a top plate and a side plate, the top plate is horizontally arranged, the two roller bases are respectively arranged at both ends of the top surface of the top plate, and the side plate is located on one side of the top plate and is arranged perpendicular to the top plate.

[0009] Furthermore, a first guide rail is arranged on the side surface of the side plate, the first guide rail is arranged horizontally, two sliding blocks are slidably connected to the first guide rail, and a connecting seat is fixedly connected to the sliding block.

[0010] Furthermore, pulleys are rotatably connected at both ends of the side plate, and the two pulleys are symmetrically arranged at both ends of the first guide rail. Belts are transmission-connected to the two pulleys, and the belts are fixedly connected to the two connecting seats via belt fixing plates.

[0011] Furthermore, a first cylinder is also arranged on the side plate, and the first cylinder is arranged below the first guide rail and parallel to the first guide rail.

[0012] Furthermore, the fixed end of the first cylinder is fixed to the side plate through a first cylinder bracket, and the telescopic end of the first cylinder is fixedly connected to a connecting seat close to one side of the telescopic end through a first connecting plate.

[0013] Furthermore, a roller lifting mechanism is provided on both connection seats, and the roller lifting mechanism includes a connection base plate, the connection base plate is fixed on the connection seat, and a roller mounting plate is slidably connected to a side of the connection base plate away from the connection seat.

[0014] Furthermore, the connecting base plate is slidably connected to a roller mounting plate on one side away from the connecting seat, and a slider and a second guide rail are arranged between the roller mounting plate and the connecting base plate, wherein the slider is fixed on the connecting base plate, the second guide rail is fixed on the roller mounting plate, and the second guide rail is arranged perpendicular to the first guide rail.

[0015] Furthermore, a second roller is arranged on a side of the roller mounting plate away from the guide rail, and both ends of the second roller are rotatably connected to roller seats, which are fixed to the roller mounting plate through the roller seats.

[0016] Furthermore, a second cylinder is arranged on one side of the second roller, the second cylinder is arranged parallel to the second roller, the fixed end of the second cylinder is fixed to the connecting base plate through a second cylinder bracket, and the telescopic end of the second cylinder is fixedly connected to the roller mounting plate through a second connecting plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model arranges a compression spring and a guide rod at the bottom of the roller base. When the pipe rotates, the compression amount of the compression spring is used to adjust the height of the first roller, thereby balancing the distance between the rotation center of the pipe and the bracket, reducing the up and down shaking caused by the rotation of the special-shaped pipe, and improving the cutting accuracy of the pipe.

[0019] 2. The utility model connects the second roller via the second cylinder. When loading and unloading materials, the second cylinder drives the second roller to descend, thereby reducing the height of the second roller, making it easier for workers to load and unload materials, thereby improving the cutting efficiency of pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the follow-up centering device in the embodiment of the utility model;

[0021] Figure 2 This is a front structural diagram of the follow-up centering device in the embodiment of the utility model;

[0022] Among them, 1. connecting bracket; 2. top plate; 3. side plate; 4. roller base; 5. first roller; 6. compression spring; 7. guide rod; 8. first guide rail; 9. connecting seat; 10. pulley; 11. belt; 12. belt fixing plate; 13. first cylinder; 14. first cylinder bracket; 15. first connecting plate; 16. connecting bottom plate; 17. roller mounting plate; 18. second roller; 19. roller seat; 20. second cylinder; 21. second cylinder bracket; 22. second connecting plate. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] A typical implementation of the present invention is as follows: Figure 1 As shown, a pipe cutting follow-up centering device includes a connecting bracket 1, the bottom end of the connecting bracket 1 can be fixed on the frame of the laser cutting machine, the connecting bracket 1 is an L-shaped structure, including a top plate 2 and a side plate 3, the top plate 2 is horizontally arranged, the side plate 3 is located on one side of the top plate 2 and is arranged perpendicular to the top plate 2, roller bases 4 are symmetrically arranged at both ends of the upper surface of the top plate 2, a first roller 5 is rotatably connected between the two roller bases 4, a follow-up mechanism is arranged on the lower surface of the roller base 4, a plurality of follow-up mechanisms are arranged, and the plurality of follow-up mechanisms are symmetrically arranged at the bottom of the two roller bases 4, the follow-up mechanism includes a compression spring 6 and a guide rod 7, a guide hole is opened at the bottom of the roller base 4, and a guide hole is provided at the bottom of the roller base 4. One end of the rod 7 is fixed to the upper surface of the top plate 2 of the connecting bracket 1, and the other end passes through the guide hole, so that the roller base 4 can slide along the guide rod 7. A clamp is provided on the top of the guide rod 7 to prevent the roller base 4 from sliding out from the top of the guide rod 7. The compression spring 6 is sleeved on the outer side of the guide rod 7, and the top end of the compression spring 6 is connected to the roller base 4, and the bottom end of the compression spring 6 is connected to the connecting bracket 1. When a special-shaped pipe is placed on the first roller 5, when the pipe rotates, the compression amount of the compression spring 6 is used to adjust the height of the first roller 5, so as to balance the distance between the rotation center of the pipe and the top surface of the connecting bracket 1, reduce the up and down shaking caused by the rotation of the special-shaped pipe, and improve the cutting accuracy of the pipe.

[0025] like Figure 2As shown, a first guide rail 8 is provided on the side of the side panel 3, the first guide rail 8 is horizontally arranged, two sliders are slidably connected to the first guide rail 8, a connecting seat 9 is fixedly connected to the slider, the connecting seat 9 is a rectangular structure, the interior of which is hollow, and openings are arranged on both sides, pulleys 10 are rotatably connected to both ends of the side panel 3, the two pulleys 10 are symmetrically arranged at both ends of the first guide rail 8, and belts 11 are transmission-connected to the two pulleys 10, the belt 11 passes through the two connecting seats 9 from the openings on both sides of the connecting seat 9, and a belt fixing plate 12 is provided on the connecting seat 9, and the belt 11 is fixedly connected to the connecting seat 9 through the belt fixing plate 12. When the belt 11 rotates, it can drive the two connecting seats 9 to move closer to or away from each other.

[0026] A first cylinder 13 is also provided on the side panel 3. The first cylinder 13 is provided below the first guide rail 8 and parallel to the first guide rail 8. The fixed end of the first cylinder 13 is fixed to the side panel 3 through a first cylinder bracket 14. The telescopic end of the first cylinder 13 is fixedly connected to the connecting seat 9 close to the telescopic end through a first connecting plate 15. The first cylinder 13 can drive the connecting seat 9 connected to it to move through the telescopic end, and drive the connecting seat 9 on the other side to move through the belt 11, so as to realize that the two connecting seats 9 are close to or away from each other.

[0027] A roller lifting mechanism is provided on both connecting seats 9, and the roller lifting mechanism includes a connecting base plate 16, which is fixed on the connecting seat 9, and a roller mounting plate 17 is slidably connected to the side of the connecting base plate 16 away from the connecting seat 9, and a slider and a second guide rail are provided between the roller mounting plate 17 and the connecting base plate 16, wherein the slider is fixed on the connecting base plate 16, and the second guide rail is fixed on the roller mounting plate 17, and the second guide rail is vertically arranged with the first guide rail 8, and the sliding connection between the roller mounting plate 17 and the connecting base plate 16 is realized through the sliding connection between the second guide rail and the slider.

[0028] A second roller 18 is provided on the side of the roller mounting plate 17 away from the second guide rail. Both ends of the second roller 18 are rotatably connected with roller seats 19 and are fixed to the roller mounting plate 17 through the roller seats 19. A second cylinder 20 is provided on one side of the second roller 18. The second cylinder 20 is arranged parallel to the second roller 18. The fixed end of the second cylinder 20 is fixed to the connecting base plate 16 through a second cylinder bracket 21. The telescopic end of the second cylinder 20 is fixedly connected to the roller mounting plate 17 through a second connecting plate 22, so that the second cylinder 20 is used to drive the roller mounting plate 17 to move along the length direction of the second guide rail, thereby realizing the lifting movement of the second roller 18.

[0029] Since the second cylinder can drive the second roller to achieve lifting movement, when loading and unloading materials, the second cylinder is used to drive the second roller to descend, thereby lowering the height of the second roller, making it easier for workers to load and unload materials, thereby improving the cutting efficiency of the pipe.

[0030] When in use, multiple follow-up centering devices are fixed side by side on the laser cutting machine frame, and then the pipe is placed on the first roller, the second roller is driven to rise by the second cylinder, and the two second rollers are driven to approach each other by the first cylinder, so as to limit the pipe placed on the first roller to prevent the pipe from shaking during the cutting process. When the cutting is completed, the two second rollers are driven away from each other by the first cylinder, and the second rollers are driven to descend by the second cylinder, so as to facilitate the removal of the pipe from the first roller.

[0031] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe cutting follow-up centering device, characterized in that: It includes a connecting bracket, roller bases are arranged at both ends of the top surface of the connecting bracket, a first roller is rotatably connected between the two roller bases, a plurality of guide rods are fixed at positions corresponding to the roller bases at both ends of the top surface of the connecting bracket, a plurality of guide holes are opened on the roller base, the top ends of the guide rods pass through the guide holes, and a compression spring is sleeved on the outer side of the guide rods.

2. A pipe cutting follow-up centering device as claimed in claim 1, characterized in that: The connecting bracket is an L-shaped structure, including a top plate and a side plate. The top plate is horizontally arranged, and two roller bases are respectively arranged at both ends of the top surface of the top plate. The side plate is located on one side of the top plate and is arranged perpendicular to the top plate.

3. A pipe cutting follow-up centering device as claimed in claim 2, characterized in that: A first guide rail is arranged on the side surface of the side plate, the first guide rail is arranged horizontally, two sliding blocks are slidably connected to the first guide rail, and a connecting seat is fixedly connected to the sliding block.

4. A pipe cutting follow-up centering device as claimed in claim 3, characterized in that: The two ends of the side plate are rotatably connected with pulleys, the two pulleys are symmetrically arranged at the two ends of the first guide rail, the two pulleys are transmission-connected with belts, and the belts are fixedly connected to the two connecting seats through belt fixing plates.

5. A pipe cutting follow-up centering device as claimed in claim 3, characterized in that: The side plate is also provided with a first cylinder, which is arranged below the first guide rail and parallel to the first guide rail.

6. A pipe cutting follow-up centering device as claimed in claim 5, characterized in that: The fixed end of the first cylinder is fixed to the side plate through a first cylinder bracket, and the telescopic end of the first cylinder is fixedly connected to a connecting seat close to one side of the telescopic end through a first connecting plate.

7. A pipe cutting follow-up centering device as claimed in claim 3, characterized in that: The two connecting seats are both provided with a roller lifting mechanism, which comprises a connecting bottom plate fixed on the connecting seat, and a roller mounting plate is slidably connected to one side of the connecting bottom plate away from the connecting seat.

8. A pipe cutting follow-up centering device as claimed in claim 7, characterized in that: The connecting base plate is slidably connected to a roller mounting plate on one side away from the connecting seat, and a slider and a second guide rail are arranged between the roller mounting plate and the connecting base plate, wherein the slider is fixed on the connecting base plate, and the second guide rail is fixed on the roller mounting plate, and the second guide rail is arranged perpendicular to the first guide rail.

9. A pipe cutting follow-up centering device as claimed in claim 8, characterized in that: A second roller is arranged on a side of the roller mounting plate away from the guide rail, and roller seats are rotatably connected to both ends of the second roller, which are fixed to the roller mounting plate through the roller seats.

10. A pipe cutting follow-up centering device as claimed in claim 9, characterized in that: A second cylinder is arranged on one side of the second roller, the second cylinder is arranged parallel to the second roller, the fixed end of the second cylinder is fixed to the connecting bottom plate through a second cylinder bracket, and the telescopic end of the second cylinder is fixedly connected to the roller mounting plate through a second connecting plate.

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