Special chuck for laser pipe cutting machine

Abstract

The invention belongs to the technical field of laser pipe cutting machines, and particularly relates to a special chuck for a laser pipe cutting machine, which comprises a laser pipe cutting machine, a front chuck and a rear chuck, a rack and a slide rail are arranged on the laser pipe cutting machine, and the front chuck and the rear chuck are connected onto the laser pipe cutting machine; the front chuck comprises a front clamping body and a sliding assembly, a front clamping piece is rotationally connected to the front clamping body, the length of the portion, exceeding the sliding assembly, of the front clamping body is larger than the diameter of the front clamping piece, the rear chuck comprises a rear clamping body and a sliding assembly, and a rear clamping piece is rotationally connected to the rear clamping body. The length of the part of the rear clamp main body exceeding the sliding assembly is greater than the diameter of the rear clamp piece; compared with the prior art, the feeding device can be directly matched, a movable feeding assembly does not need to be additionally arranged, the feeding efficiency is improved, the labor cost is reduced, and the problem that the feeding stability is poor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of laser tube cutting machines, and in particular to a special chuck for laser tube cutting machines. Background Art

[0002] The laser cutting machine focuses the laser emitted from the laser into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a slit is eventually formed in the material, thereby achieving the purpose of cutting. Laser cutting processing replaces the traditional mechanical knife with an invisible beam, and has the characteristics of high precision, fast cutting, no limitation on cutting pattern, automatic typesetting to save materials, smooth incision, and low processing cost.

[0003] At present, with the continuous improvement of fiber laser cutting technology and the continuous development and growth of laser cutting machines, the application of pipes in many industries is becoming more and more extensive, and laser pipe cutting equipment dedicated to pipe cutting and processing has also emerged. At the same time, higher requirements are put forward for the cutting accuracy, workpiece length, tail length and automation degree of laser pipe cutting machines. Due to space limitations, the current laser pipe cutting machines have problems such as difficulty in manual loading and low loading efficiency. The center of the conventional chuck is located at the center of the bed of the laser pipe cutting machine host. When loading, the material needs to be moved from the outside of the host to the center of the bed.

[0004] Limited by the width of the bed, operation is difficult. If an automatic feeding mechanism is used to feed materials, due to the limited space occupied by the pipe cutting machine bed, the external feeder can only deliver the materials to the outside of the main machine, and then use the auxiliary feeding arm to deliver the materials to the center of the main machine. This will add an action of moving from the outside of the main machine to the center of the main machine. This action usually uses mechanisms such as servo motors, which have a cumbersome structure and high cost. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention develops a special chuck for a laser tube cutting machine, which can be directly matched with a feeding device without adding a mobile feeding component, thereby improving the feeding efficiency, reducing labor costs, and solving the problem of poor feeding stability.

[0006] The technical solution to the technical problem of the present invention is: a special chuck for a laser tube cutting machine, comprising a laser tube cutting machine, a front chuck and a rear chuck, the laser tube cutting machine is provided with a rack and a slide rail, the front chuck is connected to a side of the laser tube cutting machine close to the cutting part, and the rear chuck is connected to a side of the laser tube cutting machine away from the cutting part; The front chuck comprises a front chuck body and a sliding assembly, wherein the front chuck body is connected to the sliding assembly via a flange, a front clamping member is rotatably connected to the front chuck body, and the sliding assembly is slidably connected to the slide rail, and the length of the front chuck body beyond the sliding assembly is greater than the diameter of the front clamping member, so that the center of the front clamping member can be located outside the laser tube cutting machine body; The rear chuck includes a rear card body and a sliding assembly, the rear card body is connected to the sliding assembly via a flange, a rear clamping member is rotatably connected to the rear card body, the sliding assembly is slidably connected to the slide rail, and the length of the rear card body that exceeds the sliding assembly is greater than the diameter of the rear clamping member.

[0007] Preferably, the inner diameter of the front clamp is greater than or equal to the outer diameter of the steel pipe, and the outer diameter of the rear clamp is less than or equal to the inner diameter of the steel pipe.

[0008] Preferably, the sliding assembly includes a slide plate, a slider and a travel gear. The slider is arranged in an array on one side of the slide plate away from the front card body. The slider is cooperated with the slide rail and is slidably connected to the slide rail. The travel gear is rotatably connected to the slide plate, and the travel gear is meshingly connected to the rack.

[0009] Preferably, a walking reducer and a walking motor are provided on the walking skateboard, the walking reducer is connected to the skateboard through a flange, the walking motor is connected to the walking reducer, and the walking gear is connected to the output end of the walking reducer.

[0010] Preferably, the front card body and the rear card body are both rotatably connected with gears, and the front card component and the rear card component are both provided with gears. The gears on the front card component and the rear card component are respectively meshed with the gears rotatably connected with the front card body and the rear card body, and the setting method of the gears on the rear card component and the rear card body refers to the setting method on the front chuck.

[0011] Preferably, the front card body and the rear card body are both connected to a rotary reducer via a bracket, the rotary reducer is connected to a rotary motor, and the rotatably connected gears on the front card body and the rear card body are both connected to the output end of the rotary reducer.

[0012] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects: The present invention arranges the centers of the front clamp and the rear clamp on the outside of the pipe cutting machine, so that material can be directly loaded without the need to set up a horizontal moving component, thereby improving the loading efficiency. Only manual labor or an automatic loader is needed to place the workpiece in the material storage area outside the main machine. It is not limited by the width of the bed, is easy to operate, eliminates space occupation restrictions, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1It is the general assembly diagram of the present invention; Figure 2 This is the structural diagram of the front chuck; Figure 3 This is the internal structure diagram of the front chuck; Figure 4 This is the internal structure diagram of the rear chuck; Figure 5 for Figure 1 A partial enlarged view of area A.

[0013] Among them: 1. Laser tube cutting machine; 101. Cutting part; 102. Rack; 103. Slide rail; 2. Front chuck; 21. Front chuck body; 22. Front clamp; 3. Rear chuck; 31. Rear chuck body; 32. Rear clamp; 4. Slide plate; 41. Slider; 5. Travel gear; 6. Travel motor; 7. Travel reducer; 8. Rotating motor; 9. Rotating reducer. DETAILED DESCRIPTION

[0014] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0015] Example 1 See also Figures 1 to 5 A chuck dedicated to a laser tube cutting machine comprises a laser tube cutting machine 1, a front chuck 2 and a rear chuck 3. The laser tube cutting machine 1 is provided with a rack 102 and a slide rail 103. The front chuck 2 is connected to a side of the laser tube cutting machine 1 close to a cutting part 101, and the rear chuck 3 is connected to a side of the laser tube cutting machine 1 away from the cutting part 101; The front chuck 2 includes a front chuck body 21 and a sliding assembly. The front chuck body 21 is connected to the sliding assembly through a flange. A front clamping member 22 is rotatably connected to the front chuck body 21. The sliding assembly is slidably connected to the slide rail 103. The length of the front chuck body 21 beyond the sliding assembly is greater than the diameter of the front clamping member 22, so that the center of the front clamping member 22 can be located outside the main body of the laser tube cutting machine 1. The rear chuck 3 includes a rear card body 31 and a sliding assembly. The rear card body 31 is connected to the sliding assembly through a flange. A rear clamping member 32 is rotatably connected to the rear card body 31. The sliding assembly is slidably connected to the slide rail 103. The length of the rear card body 31 that exceeds the sliding assembly is greater than the diameter of the rear clamping member 32.

[0016] like Figures 2 to 4 The inner diameter of the front clamp 22 is greater than or equal to the outer diameter of the steel pipe, and the outer diameter of the rear clamp 32 is less than or equal to the inner diameter of the steel pipe.

[0017] like Figures 2 to 4The sliding assembly includes a slide plate 4, a slider 41 and a travel gear 5. The slider 41 is arranged in an array on one side of the slide plate 4 away from the front card body 21. The slider 41 is matched with the slide rail 103 and is slidably connected to the slide rail 103. The travel gear 5 is rotatably connected to the slide plate 4, and the travel gear 5 is meshed with the rack 102.

[0018] like Figures 2 to 4 The walking slide 4 is provided with a walking reducer 7 and a walking motor 6. The walking reducer 7 is connected to the slide 4 through a flange. The walking motor 6 is connected to the walking reducer 7. The walking gear 5 is connected to the output end of the walking reducer 7.

[0019] like Figures 2 to 4 The front card body 21 and the rear card body 31 are both rotatably connected with gears, and the front card component 22 and the rear card component 32 are both provided with gears, and the gears on the front card component 22 and the rear card component 32 are respectively meshed with the gears rotatably connected to the front card body 21 and the rear card body 31.

[0020] like Figures 2 to 4 The front card body 21 and the rear card body 31 are both connected to a rotary reducer 9 through a bracket, and the rotary reducer 9 is connected to a rotary motor 8. The rotatably connected gears on the front card body 21 and the rear card body 31 are both connected to the output end of the rotary reducer 9.

[0021] Principle and operation process The laser tube cutting machine 1 is equipped with a rack 102 and a slide rail 103, the front chuck 2 is located on the side close to the cutting part 101, and the rear chuck 3 is on the side away from the cutting part 101. The front card body 21 of the front chuck 2 is connected to the sliding assembly through a flange, and the front card body 21 is rotatably connected to the front card 22, and the length of the front card body 21 that exceeds the sliding assembly is greater than the diameter of the front card 22, and the same is true for the rear chuck 3. This design makes the center of the front card 22 and the rear card 32 located outside the main body of the laser tube cutting machine 1, so that when loading, the manual or automatic loader only needs to place the workpiece in the material storage area outside the main machine. Because the card position is located outside the main body of the laser tube cutting machine 1, there is no need to set a horizontal moving assembly, and it is not limited by the width of the bed, which greatly improves the loading efficiency, makes the operation simpler and more convenient, and reduces the space occupation cost; the sliding assembly mainly includes a slide plate 4, a slider 41 and a travel gear 5. The slider 41 is arranged in an array on the side of the slide plate 4 away from the front card body 21 or the rear card body 31. It cooperates with the slide rail 103 and is connected to the slide rail 103 by sliding to provide support and guidance for the movement of the chuck. The travel gear 5 is rotatably connected to the slide plate 4 and meshes with the rack 102. The travel gear 5 is powered by the travel reducer 7 and the travel motor 6. When the travel motor 6 is started, the power is transmitted to the travel reducer 7. After the travel reducer 7 adjusts the power, its output end drives the travel gear 5 to rotate. Since the travel gear 5 is meshed with the rack 102, the rotation of the travel gear 5 will be converted into the linear movement of the sliding assembly along the slide rail 103, thereby realizing the position adjustment of the front chuck 2 and the rear chuck 3 on the laser pipe cutting machine 1 to meet the processing requirements of workpieces of different lengths. The front card body 21 and the rear card body 31 are both rotatably connected with gears, and the front card member 22 and the rear card member 32 are also provided with gears, and the gears on the front card member 22 and the rear card member 32 are respectively meshed with the gears rotatably connected to the front card body 21 and the rear card body 31. The front card body 21 and the rear card body 31 are both connected with a rotary reducer 9 through a bracket, and the rotary reducer 9 is connected with a rotary motor 8. When the rotary motor 8 is started, the power is transmitted to the rotary reducer 9. After the rotary reducer 9 adjusts the power, its output end drives the gears rotatably connected on the front card body 21 and the rear card body 31 to rotate. Through the meshing transmission of the gears, the rotation of the gears on the front card body 21 and the rear card body 31 will drive the front card member 22 and the rear card member 32 to rotate synchronously, thereby realizing the rotation operation of the workpiece, so that the angle of the workpiece can be adjusted as needed during the laser cutting process to meet different cutting requirements.

[0022] During manual operation, the workpiece is moved to the material storage area outside the main machine and placed in a suitable direction and position so that the workpiece can be conveniently clamped by the front clamp 22 and the rear clamp 32. If an automatic loader is used, the loader is controlled by a preset program to accurately place the workpiece at the specified position in the material storage area. Since the centers of the front clamp 22 and the rear clamp 32 are outside the pipe cutting machine, the workpiece placement process is relatively simple and does not require too many complicated adjustment operations, and the loading preparation work can be completed quickly. Use a measuring tool to measure the length of the workpiece to be processed. According to the measurement results and in combination with the processing requirements, determine the distance that the front chuck 2 and the rear chuck 3 need to move to ensure that the workpiece can be stably clamped and meet the processing position accuracy requirements. Operate the control system of the laser pipe cutting machine 1, start the travel motor 6, the travel motor 6 drives the travel reducer 7 to work, and the travel reducer 7 drives the travel gear 5 to rotate on the rack 102. As the travel gear 5 rotates, the sliding assembly drives the front chuck 2 and the rear chuck 3 to move to a predetermined position along the slide rail 103, so that the front clamp 22 and the rear clamp 32 correspond to the two ends of the workpiece, completing the workpiece clamping work. During the laser cutting process, according to the cutting pattern or process requirements, determine whether it is necessary to adjust the angle of the workpiece and the direction and angle of rotation. Through the control system of the laser tube cutting machine 1, start the rotating motor 8. The rotating motor 8 drives the rotating reducer 9 to work, and the output end of the rotating reducer 9 drives the rotating connected gears on the front card body 21 and the rear card body 31 to rotate. Due to the meshing transmission of the gears, the front clamp 22 and the rear clamp 32 rotate synchronously, driving the workpiece to rotate to the desired angle. At the same time, according to the actual processing situation, the speed and rotation direction of the rotating motor 8 can be adjusted at any time to achieve flexible workpiece angle adjustment operation.

[0023] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A special chuck for laser tube cutting machine, characterized by: The laser tube cutting machine (1) comprises a front chuck (2) and a rear chuck (3); the laser tube cutting machine (1) is provided with a rack (102) and a slide rail (103); the front chuck (2) is connected to a side of the laser tube cutting machine (1) close to a cutting portion (101); and the rear chuck (3) is connected to a side of the laser tube cutting machine (1) far from the cutting portion (101); The front chuck (2) comprises a front chuck body (21) and a sliding assembly, the front chuck body (21) is connected to the sliding assembly via a flange, a front chuck member (22) is rotatably connected to the front chuck body (21), the sliding assembly is slidably connected to the slide rail (103), and the length of the front chuck body (21) that exceeds the sliding assembly is greater than the diameter of the front chuck member (22); The rear chuck (3) comprises a rear chuck body (31) and a sliding assembly, wherein the rear chuck body (31) is connected to the sliding assembly via a flange, a rear clamping member (32) is rotatably connected to the rear chuck body (31), and the sliding assembly is slidably connected to the slide rail (103), and the length of the rear chuck body (31) that exceeds the sliding assembly is greater than the diameter of the rear clamping member (32).

2. A chuck for laser tube cutting machine according to claim 1, characterized in that: The inner diameter of the front clamp (22) is greater than or equal to the outer diameter of the steel pipe, and the outer diameter of the rear clamp (32) is less than or equal to the inner diameter of the steel pipe.

3. A chuck for laser tube cutting machine according to claim 1, characterized in that: The sliding assembly comprises a slide plate (4), a slider (41) and a travel gear (5); the slider (41) is arranged in an array on a side of the slide plate (4) away from the front card body (21); the slider (41) is arranged in cooperation with a slide rail (103) and is slidably connected to the slide rail (103); the travel gear (5) is rotatably connected to the slide plate (4); and the travel gear (5) is meshingly connected to the rack (102).

4. A chuck for laser tube cutting machine according to claim 3, characterized in that: The slide plate (4) is provided with a travel reducer (7) and a travel motor (6); the travel reducer (7) is connected to the slide plate (4) via a flange, the travel motor (6) is connected to the travel reducer (7), and the travel gear (5) is connected to the output end of the travel reducer (7).

5. The special chuck for laser tube cutting machine according to claim 1, characterized in that: The front card body (21) and the rear card body (31) are both rotatably connected with gears, and the front card member (22) and the rear card member (32) are both provided with gears, and the gears on the front card member (22) and the rear card member (32) are respectively meshed with the gears rotatably connected with the front card body (21) and the rear card body (31).

6. A chuck for laser tube cutting machine according to claim 5, characterized in that: The front card body (21) and the rear card body (31) are both connected to a rotary reducer (9) via a bracket, the rotary reducer (9) is connected to a rotary motor (8), and the rotatably connected gears on the front card body (21) and the rear card body (31) are both connected to the output end of the rotary reducer (9).

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