Pipe centering device for laser pipe cutting machine

Abstract

The utility model discloses a pipe centering device for a laser pipe cutting machine, which relates to the technical field of laser pipe cutting machines, and comprises a fixed plate detachably connected with a rack, the fixed plate is vertically connected with a sliding plate in a sliding manner, the upper end part of the sliding plate is provided with a clamping device for clamping a pipe, the upper end part of the sliding plate is rotatably connected with a driving strip, and the driving strip is connected with the rack. The clamping device comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is fixedly connected with the upper end of the driving strip, and the second clamping assembly is fixedly connected with the lower end of the driving strip. When a pipe is clamped, the driving strip is controlled to rotate, then the first clamping assembly and the second clamping assembly are driven to move in the direction close to each other, then the pipe is clamped, the influence of chippings on the driving strip is weak, and driving on the first clamping assembly and the second clamping assembly is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of laser tube cutting machines, in particular to a tube centering device for laser tube cutting machines. Background Art

[0002] The centering device is an important component of the laser tube cutting machine. Its function is to accurately position and clamp the tube to ensure the stability and accuracy of the tube when it is fed into the frame for cutting.

[0003] For related technology, please refer to Chinese Patent Publication No. CN218799972U, which discloses a tube centering device for a laser tube cutting machine. The device comprises a workbench with a feed port on the front, a centering mechanism for centering the tube, and a support mechanism on the back of the workbench. The centering mechanism includes a mounting plate fixed to the front of the workbench. The centering mechanism and the support mechanism cooperate to effectively clamp the tube.

[0004] Regarding the above-mentioned related technologies, the rotation of the gear is used to drive the rack to move, and then the pipe is clamped in the center. However, in the laser cutting environment, the debris of the cut pipe will fly out. Since the flying angle of the debris is not fixed, it is easy for the cutting chips to enter the gap between the teeth. The transmission accuracy of the gear rack is high and it is very sensitive to the presence of debris. Once the debris enters between the gear rack, it is easy to cause wear and damage to it, affecting the accuracy and efficiency of the transmission, and then causing the centering device to fail to clamp the pipe. Utility Model Content

[0005] In order to solve the above problems, the present application provides a pipe centering device for a laser pipe cutting machine.

[0006] This application provides a tube centering device for a laser tube cutting machine, which adopts the following technical solutions:

[0007] A tube centering device for a laser tube cutting machine comprises a fixed plate detachably connected to a frame, the fixed plate being vertically slidably connected to a sliding plate, the upper end of the sliding plate being provided with a clamping device for clamping the tube, the upper end of the sliding plate being rotatably connected to a drive bar, the clamping device comprising a clamping component 1 and a clamping component 2, the clamping component 1 being fixedly connected to the upper end of the drive bar, and the clamping component 2 being fixedly connected to the lower end of the drive bar.

[0008] By adopting the above technical solution, when clamping the pipe, the driving bar is manipulated to rotate, thereby driving the clamping component 1 and the clamping component 2 to move in a direction close to each other, thereby clamping the pipe. The driving bar is less affected by debris, and the driving of the clamping component 1 and the clamping component 2 is more stable.

[0009] Optionally, the clamping component 1 includes a slider 1, which is fixedly connected to the upper end of the driving bar, and the side of the slider 1 facing away from the driving bar is slidably connected to the clamping block 1. The clamping component 2 includes a slider 2, which is fixedly connected to the lower end of the driving bar, and the side of the slider 2 facing away from the driving bar is fixedly connected to the clamping block 2.

[0010] By adopting the above technical solution, before placing the pipe on the rotating roller, the clamping block 1 can be manipulated to slide, thereby facilitating the avoidance of the transported pipe, and the avoidance speed is fast and the efficiency is high.

[0011] Optionally, a slide rail is provided at the upper end of the sliding plate, and the slider 1 and the slider 2 are both sleeved on the outside of the slide rail.

[0012] By adopting the above technical solution, slider one and slider two will be limited by the slide rail when sliding, thereby improving the sliding stability of slider one and slider two, and further improving the stability of pipe clamping.

[0013] Optionally, the driving bar is a chain, and the side of the slide rail away from the slider is rotatably connected to two sprockets, the chain is sleeved on the outside of the two sprockets, and the two sprockets are rotatably connected to the two ends of the slide rail in the length direction.

[0014] By adopting the above technical solution, the chain can be driven to move by manipulating the rotation of the sprocket, thereby driving slider one and slider two to move in a direction close to each other, and then driving clamping block one and clamping block two to clamp the pipe. The structure is simple and the drive is convenient. In addition, the transmission of the sprocket and chain is less affected by debris and the transmission is more stable.

[0015] Optionally, the clamping assembly 1 includes a lifting cylinder, which is fixedly connected to the lower end of the slider 1, and the piston rod of the lifting cylinder is fixedly connected to the clamping block 1.

[0016] By adopting the above technical solution, the clamping block 1 can be driven to move by manipulating the extension and retraction of the piston rod of the lifting cylinder, which has a simple structure and is easy to drive.

[0017] Optionally, a driving cylinder is provided at the upper end of the sliding plate, the piston rod of the driving cylinder is fixedly connected to the clamping assembly, and the piston rod of the driving cylinder is fixedly connected to the cylinder barrel of the lifting cylinder.

[0018] By adopting the above technical solution, by operating the piston rod of the driving cylinder to extend, the lifting cylinder can be driven to move, and then the slider one can be driven to move, and then the chain can be driven to rotate, and then the slider one and the slider two can be driven to move away from each other. By operating the piston rod of the driving cylinder to retract, the slider one and the slider two can be driven in the direction of approaching each other. The driving speed is faster and it is more sensitive when clamping the pipe.

[0019] Optionally, the upper end of the sliding plate is rotatably connected to a rotating roller, and the height of the rotating roller is higher than the height of the driving bar.

[0020] By adopting the above technical solution, when moving the pipe, the pipe can be placed on the rotating roller first. The rotating roller will rotate during the movement of the pipe. The rotating roller can support the pipe and facilitate the feeding and sliding of the pipe.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. When clamping a pipe, the driving bar is manipulated to rotate, thereby driving the clamping components 1 and 2 to move toward each other, thereby clamping the pipe. The driving bar is less affected by debris, and the driving of the clamping components 1 and 2 is more stable.

[0023] 2. The chain can be driven to move by manipulating the rotation of the sprocket, thereby driving the slider 1 and the slider 2 to move toward each other, and then driving the clamping block 1 and the clamping block 2 to clamp the pipe. The structure is simple and the drive is convenient. In addition, the transmission of the sprocket and the chain is less affected by debris and the transmission is more stable.

[0024] 3. By operating the piston rod of the driving cylinder to extend, the lifting cylinder can be driven to move, and then the slider 1 can be driven to move, and then the chain can be driven to rotate, and then the slider 1 and the slider 2 can be driven to move away from each other. By operating the piston rod of the driving cylinder to retract, the slider 1 and the slider 2 can be driven in the direction of approaching each other. The driving speed is faster and it is more sensitive when clamping the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a schematic diagram of the overall structure of a tube centering device for a laser tube cutting machine.

[0026] Figure 2 This is a schematic diagram of the overall structure of a tube centering device for a laser tube cutting machine from another angle.

[0027] Figure 3 A side view of a tube centering device for a laser tube cutting machine.

[0028] Figure 4 It is a partial schematic diagram highlighting the sprocket.

[0029] Figure 5 It is a partial schematic diagram highlighting the clamping component one.

[0030] Explanation of the accompanying drawings: 1. Fixed plate; 2. Sliding plate; 21. Rotating roller; 3. Clamping device; 4. Clamping assembly 1; 41. Slider 1; 42. Clamping block 1; 5. Clamping assembly 2; 51. Slider 2; 52. Clamping block 2; 53. Lifting cylinder; 6. Slide rail; 7. Sprocket; 71. Chain; 8. Driving cylinder. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] The embodiment of the present application discloses a pipe centering device for a laser pipe cutting machine.

[0033] Reference Figure 1 and Figure 2 A tube centering device for a laser tube cutting machine comprises a fixed plate 1 detachably connected to a frame, the fixed plate 1 is vertically slidably connected to a sliding plate 2, the upper end of the sliding plate 2 is provided with a clamping device 3 for clamping the tube, the upper end of the sliding plate 2 is rotatably connected to a driving bar, the clamping device 3 comprises a clamping component 1 4 and a clamping component 2 5, the clamping component 1 4 is fixedly connected to the upper end of the driving bar, and the clamping component 2 5 is fixedly connected to the lower end of the driving bar. When clamping the tube, by manipulating the rotation of the driving bar, the clamping component 1 4 and the clamping component 2 5 are driven to move in a direction close to each other, thereby clamping the tube.

[0034] The driving method of the sliding plate 2 is the existing technology, which can make the sliding plate 2 slide on the fixed plate 1, and will not be described in detail in this embodiment.

[0035] Reference Figure 2 and Figure 3 The upper end of the sliding plate 2 is rotatably connected to a rotating roller 21. The height of the rotating roller 21 is higher than the height of the driving bar. When moving the pipe, the pipe is placed on the rotating roller 21, and then the driving component can be used to drive the pipe to move. During the movement of the pipe, the rotating roller 21 will rotate. The rotating roller 21 can support the pipe while facilitating the feeding and sliding of the pipe.

[0036] Reference Figure 1 and Figure 4The clamping component 4 includes a slider 41, which is fixedly connected to the upper end of the driving bar, and a clamping block 42 is slidably connected to the side of the slider 41 away from the driving bar. The clamping component 2 5 includes a slider 2 51, which is fixedly connected to the lower end of the driving bar, and a clamping block 2 52 is fixedly connected to the side of the slider 2 51 away from the driving bar. Before placing the pipe on the rotating roller 21, the clamping block 42 can be manipulated to slide, thereby facilitating the avoidance of the transported pipe.

[0037] Reference Figure 1 and Figure 5 The clamping assembly 4 includes a lifting cylinder 53, which is fixedly connected to the lower end of the slider 41, and the piston rod of the lifting cylinder 53 is fixedly connected to the clamping block 42; by operating the piston rod of the lifting cylinder 53 to retract, the clamping block 42 can be driven to move. The structure is simple, the drive is convenient, and the clamping block 42 can avoid the movement at a faster speed and with higher efficiency.

[0038] Reference Figure 1 and Figure 2 As the pipe moves to the upper end of the sliding plate 2, the clamping device 3 can be operated to clamp the pipe; a slide rail 6 is provided at the upper end of the sliding plate 2, and the slider 1 41 and the slider 2 51 are both sleeved on the outside of the slide rail 6; wherein, the driving bar in this embodiment is preferably a chain 71, and the side of the slide rail 6 away from the slider 1 41 is rotatably connected to two sprockets 7, and the chain 71 is sleeved on the outside of the two sprockets 7, and the two sprockets 7 are rotatably connected to the two ends of the length direction of the slide rail 6 respectively; the transmission of the sprocket 7 and the chain 71 is less affected by debris, and the transmission is relatively stable, and the staff only needs to clean the sprocket 7 and the chain 71 regularly.

[0039] Reference Figure 1 and Figure 2 A driving cylinder 8 is provided at the upper end of the sliding plate 2. The piston rod of the driving cylinder 8 is fixedly connected to the clamping assembly 1 4. The piston rod of the driving cylinder 8 is fixedly connected to the cylinder barrel of the lifting cylinder 53. By operating the piston rod of the driving cylinder 8 to extend, the lifting cylinder 53 can be driven to move, and then the slider 1 41 is driven to move, and then the chain 71 is driven to rotate, and then the two sprockets 7 are driven to rotate. At this time, the slider 1 41 and the slider 2 51 move away from each other. When the distance between the clamping block 1 42 and the clamping block 2 52 is greater than the diameter of the pipe, the piston rod of the driving cylinder 8 can be operated to stop extending.

[0040] Reference Figure 1 and Figure 2, operate the piston rod of the lifting cylinder 53 to extend, so that the clamping block 1 42 rises to the same height as the clamping block 2 52, and then operate the piston rod of the driving cylinder 8 to retract, which can drive the slider 1 41 and the slider 2 51 in the direction of approaching each other, thereby clamping the pipe. The driving speed is fast and it is more sensitive when clamping the pipe.

[0041] Reference Figure 1 and Figure 2 When sliding, the slider 1 41 and the slider 2 51 are both limited by the slide rail 6, thereby improving the sliding stability of the slider 1 41 and the slider 2 51, and thus improving the stability of the pipe clamping.

[0042] The implementation principle of the tube centering device for a laser tube cutting machine in the embodiment of the present application is as follows: before the tube is placed on the rotating roller 21, the lifting cylinder 53 drives the clamping block 1 42 to slide, thereby facilitating the subsequent avoidance of the transported tube. As the tube moves to the top of the sliding plate 2, the piston rod of the driving cylinder 8 is operated to extend, and the slider 1 41 and the slider 2 51 move away from each other. When the distance between the clamping block 1 42 and the clamping block 2 52 is greater than the diameter of the tube, the piston rod of the driving cylinder 8 can be operated to stop. To stop the extension, operate the piston rod of the lifting cylinder 53 to extend, so that the clamping block 1 42 rises to the same height as the clamping block 2 52, and then operate the piston rod of the driving cylinder 8 to retract, which can drive the slider 1 41 and the slider 2 51 in the direction of approaching each other, thereby clamping the pipe. The driving speed is fast and the pipe is clamped more sensitively. In the process of clamping the pipe, the transmission of the sprocket 7 and the chain 71 is less affected by debris and the transmission is more stable. The staff only needs to clean the sprocket 7 and the chain 71 regularly.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tube centering device for a laser tube cutting machine, comprising a fixing plate (1) detachably connected to a frame, characterized in that: The fixed plate (1) is vertically slidably connected to the sliding plate (2), the upper end of the sliding plate (2) is provided with a clamping device (3) for clamping the pipe, the upper end of the sliding plate (2) is rotatably connected to the driving bar, the clamping device (3) includes a clamping component 1 (4) and a clamping component 2 (5), the clamping component 1 (4) is fixedly connected to the upper end of the driving bar, and the clamping component 2 (5) is fixedly connected to the lower end of the driving bar.

2. The tube centering device for a laser tube cutting machine according to claim 1, characterized in that: The clamping assembly 1 (4) includes a slider 1 (41), which is fixedly connected to the upper end of the driving bar, and the side of the slider 1 (41) facing away from the driving bar is slidably connected to a clamping block 1 (42). The clamping assembly 2 (5) includes a slider 2 (51), which is fixedly connected to the lower end of the driving bar, and the side of the slider 2 (51) facing away from the driving bar is fixedly connected to a clamping block 2 (52).

3. The tube centering device for a laser tube cutting machine according to claim 2, characterized in that: The upper end of the sliding plate (2) is provided with a sliding rail (6), and the sliding block 1 (41) and the sliding block 2 (51) are both sleeved on the outside of the sliding rail (6).

4. The tube centering device for a laser tube cutting machine according to claim 3, characterized in that: The driving bar is a chain (71), and the side of the slide rail (6) away from the slider (41) is rotatably connected to two sprockets (7). The chain (71) is sleeved on the outside of the two sprockets (7), and the two sprockets (7) are rotatably connected to the two ends of the slide rail (6) in the length direction.

5. The tube centering device for a laser tube cutting machine according to claim 2, characterized in that: The clamping assembly 1 (4) includes a lifting cylinder (53), the lifting cylinder (53) is fixedly connected to the lower end of the slider 1 (41), and the piston rod of the lifting cylinder (53) is fixedly connected to the clamping block 1 (42).

6. The tube centering device for a laser tube cutting machine according to claim 4, characterized in that: A driving cylinder (8) is provided at the upper end of the sliding plate (2), the piston rod of the driving cylinder (8) is fixedly connected to the clamping assembly (4), and the piston rod of the driving cylinder (8) is fixedly connected to the cylinder barrel of the lifting cylinder (53).

7. The tube centering device for a laser tube cutting machine according to claim 1, characterized in that: The upper end of the sliding plate (2) is rotatably connected to a rotating roller (21), and the height of the rotating roller (21) is higher than the height of the driving bar.

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