Chuck and pipe cutting machine

Abstract

The utility model relates to laser pipe cutting machine equipment technical field, especially a chuck and pipe cutting machine, the chuck includes frame, first guide rail, second guide rail, mounting seat, chuck body, first drive arrangement and two groups of material pulling clamping jaw, and the mounting seat is slidably connected with first guide rail and second guide rail, and first drive arrangement drives the mounting seat to translate along first guide rail, and the chuck body sets up on the mounting seat and is used for the auxiliary support pipe material, and each group of material pulling clamping jaw includes clamping jaw body and second drive arrangement, and the second drive arrangement sets up at one side of chuck body, and the clamping jaw body sets up in the drive part of second drive arrangement, and the clamping space is equipped with between two material pulling clamping jaws, and two second drive arrangements drive two clamping jaw bodies to be close to each other or away from each other to adjust the width of clamping space. Through material pulling clamping jaw clamping pipe material tail, and first drive arrangement drives the chuck body to translate, makes laser cutting head can effectively cut pipe material tail material.

Description

Technical Field

[0001] This utility model relates to the field of laser tube cutting equipment technology, and in particular to a chuck and tube cutting machine. Background Technology

[0002] Existing laser tube cutting machines are typically equipped with a pusher chuck and a clamping chuck. The pusher chuck has a fixing part that abuts against the inner wall of the tube. After this fixing part is inserted into the tube, it can drive the tube to rotate and move back and forth. The clamping chuck is located on one side of the laser cutting head, mainly serving an auxiliary support function, and can rotate synchronously with the rear chuck. However, due to the fixing method of the pusher chuck, the part of the tube inserted into the fixing part cannot be cut during the cutting process, resulting in waste of tube tail material. Utility Model Content

[0003] The technical problem this invention aims to solve is that the part of the fixing part inserted into the tube cannot be cut during the cutting process, which leads to waste of the tube tail material.

[0004] The solution to the technical problem of this utility model is: a chuck, which includes a frame, a first guide rail, a second guide rail, a mounting base, a chuck body, a first driving device, and two sets of material pulling jaws. The first guide rail is disposed on the top of the frame, and the second guide rail is disposed on one side of the frame and parallel to the first guide rail. The mounting base is slidably connected to the first and second guide rails. The first driving device drives the mounting base to translate along the first guide rail. The chuck body is disposed on the mounting base for auxiliary support of the pipe material. Each set of material pulling jaws includes a jaw body and a second driving device. The second driving device is disposed on one side of the chuck body, and the jaw body is disposed on the driving part of the second driving device. A clamping space is provided between the two material pulling jaws. The two second driving devices drive the two jaw bodies to move closer or further apart to adjust the width of the clamping space.

[0005] As a further improvement to the above technical solution, the chuck body includes a chuck seat, a rotary disk, a rotary disk drive assembly, and a roller jaw assembly. The chuck seat is disposed on the mounting base, the rotary disk is disposed on the chuck seat and can rotate relative to the chuck seat, the rotary disk drive assembly drives the rotary disk to rotate, the roller jaw assembly is disposed on the rotary disk, and the second drive device is disposed on the side of the roller jaw assembly away from the rotary disk.

[0006] As a further improvement to the above technical solution, the number of roller claw assemblies is four sets, the four sets of roller claw assemblies are positioned opposite each other in pairs, and the two sets of material pulling claws are respectively set on the side of the two sets of roller claw assemblies that are opposite each other that are away from the rotating disk.

[0007] As a further improvement to the above technical solution, the first driving device includes a first gear, a rack, and a drive motor. The rack is disposed on the frame and parallel to the first guide rail. The drive motor is disposed on the mounting base. The first gear is coaxially rotatably disposed with the drive part of the drive motor, and the first gear and the rack mesh with each other.

[0008] As a further improvement to the above technical solution, the first driving device further includes a felt wheel and an auxiliary shaft. The auxiliary shaft is disposed on the lower surface of the mounting base. The felt wheel and the auxiliary shaft are rotatable relative to each other. The side of the felt wheel contacts the rack.

[0009] As a further improvement to the above technical solution, the second driving device is a cylinder, which is fixed on the chuck body, and the telescopic part of the cylinder is fixedly connected to the chuck body.

[0010] As a further improvement to the above technical solution, the mounting base includes a vertical plate, a horizontal plate, a first slider, and a second slider. The vertical plate is disposed on the horizontal plate and is perpendicular to the horizontal plate. The first slider is disposed on the horizontal plate and is slidably connected to the first guide rail. The second slider is disposed on the vertical plate and is slidably connected to the second guide rail.

[0011] As a further improvement to the above technical solution, the claw body is provided with a serrated section, which is located on the side of the claw body away from the second driving device.

[0012] As a further improvement to the above technical solution, the chuck seat is connected to the mounting base by bolts, and the chuck seat is vertically provided with an oblong hole, which allows the bolt to be displaced.

[0013] A pipe cutting machine, comprising a chuck as described in any of the preceding claims.

[0014] Equipped with the aforementioned chuck, the pipe is ensured to be in optimal condition during the cutting process. The laser cutting head can precisely cut the pipe according to the preset path, achieving high-quality and high-precision cutting of both the main body and the tail of the pipe. This effectively reduces the generation of waste products due to cutting errors, improves production efficiency, shortens the processing cycle, and meets the requirements of large-scale, high-efficiency production. The chuck also enables zero-tail cutting, avoiding waste of pipe tail material and reducing raw material costs.

[0015] The beneficial effects of this utility model are as follows: the frame provides a stable installation foundation; the first and second guide rails together provide guidance for the sliding of the mounting base; the chuck body assists in supporting the tube material, providing stable support for the tube material during the cutting process; the second drive device drives the two jaw bodies to move closer or further apart, thereby adjusting the width of the clamping space, and thus achieving clamping and releasing of the tail of the tube material, effectively fixing the tail of the tube material; the first drive device drives the mounting base to move along the first guide rail, so as to cooperate with the laser cutting head to cut the tail of the tube material. This utility model clamps the tail of the tube material with the pulling jaws, and the first drive device drives the chuck body to move horizontally, enabling the laser cutting head to effectively cut the material at the tail of the tube material. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of one embodiment of the present invention; Figure 2 This is an exploded view of one embodiment of the present invention; Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0018] Reference numerals in the attached drawings: 100-Frame; 110-First guide rail; 120-Second guide rail; 200-Mounting base; 210-Vertical plate; 220-Horizontal plate; 230-First slider; 240-Second slider; 300-Chuck body; 310-Chuck seat; 311-Oval hole; 320-Rotating disk; 330-Rotating disk drive assembly; 340-Roller jaw assembly; 400-First drive device; 410-First gear; 420-Rack; 430-Drive motor; 440-Felt wheel; 450-Auxiliary shaft; 500-Pulling jaw; 510-Jaw jaw body; 511-Sawtooth segment; 520-Second drive device. Detailed Implementation

[0019] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0020] Existing laser tube cutting machines are typically equipped with a pusher chuck and a clamping chuck. The pusher chuck has a fixing part that abuts against the inner wall of the tube. After this fixing part is inserted into the tube, it can drive the tube to rotate and move back and forth. The clamping chuck is located on one side of the laser cutting head, mainly serving an auxiliary support function, and can rotate synchronously with the rear chuck. However, due to the fixing method of the pusher chuck, the part of the tube inserted into the fixing part cannot be cut during the cutting process, resulting in waste of tube tail material.

[0021] Therefore, this utility model proposes a chuck, referring to... Figures 1-3 It includes a frame 100, a first guide rail 110, a second guide rail 120, a mounting base 200, a chuck body 300, a first drive device 400, and two sets of material pulling claws 500. The first guide rail 110 is disposed on the top of the frame 100, and the second guide rail 120 is disposed on one side of the frame 100 and parallel to the first guide rail 110. The mounting base 200 is slidably connected to the first guide rail 110 and the second guide rail 120. The first drive device 400 drives the mounting base 200 to translate along the first guide rail 110. The chuck body 300 is disposed on the mounting base 200 for auxiliary support of the tube material. Each set of pulling jaws 500 includes a jaw body 510 and a second driving device 520. The second driving device 520 is disposed on one side of the chuck body 300, and the jaw body 510 is disposed on the driving part of the second driving device 520. A clamping space is provided between the two pulling jaws 500. The two second driving devices 520 drive the two jaw bodies 510 to move closer or further away from each other to adjust the width of the clamping space.

[0022] The frame 100 provides a stable mounting base; the first guide rail 110 and the second guide rail 120 together provide guidance for the sliding of the mounting base 200; the chuck body 300 assists in supporting the tube material, providing stable support for the tube material during the cutting process; the second drive device 520 drives the two jaw bodies 510 to move closer or further apart, thereby adjusting the width of the clamping space, and thus achieving clamping and releasing of the tail of the tube material, effectively fixing the tail of the tube material; the first drive device 400 drives the mounting base to move the mounting base 200 along the first guide rail 110, so as to cooperate with the laser cutting head to cut the tail of the tube material. This utility model uses the pulling jaws 500 to clamp the tail of the tube material, and the first drive device 400 to drive the chuck body 300 to move, so that the laser cutting head can effectively cut the material at the tail of the tube material.

[0023] During the tube cutting process, the chuck body 510 and the second drive device 520 are in standby mode. The pusher chuck feeds normally, and the chuck body 300 clamps the tube, providing auxiliary support and allowing the tube to rotate and move axially. The laser cutting head performs laser cutting on the tube. When the tube is about to reach its limit tail position, the pusher chuck pushes the tail of the tube closer to the puller chuck 500. The second drive device 520 is activated, causing the chuck body 510 to clamp the tail of the tube. The pusher chuck releases its clamping of the inner wall of the tube and resets to prepare for the next feeding. The first drive device 400 drives the chuck body 300 to move along the first guide rail 110, positioning the tail of the tube in a suitable position that the laser cutting head can cut. The laser cutting head then cuts the tail of the tube. This avoids the problem of waste caused by the inability to cut the inserted part of the fixed part of the traditional pusher chuck. Zero tail cutting is achieved through the coordinated work of all components.

[0024] When cutting the tail of a pipe, the pipe may wobble or shift, causing instability. Therefore, in one embodiment, the chuck body 300 includes a chuck seat 310, a rotating disk 320, a rotating disk 320 drive assembly, and a roller jaw assembly 340. The chuck seat 310 is mounted on the mounting base 200, the rotating disk 320 is mounted on the chuck seat 310 and can rotate relative to it, the rotating disk 320 drive assembly drives the rotating disk 320 to rotate, the roller jaw assembly 340 is mounted on the rotating disk 320, and the second drive device 520 is located on the side of the roller jaw assembly 340 away from the rotating disk 320. Specifically, the chuck body 300 is prior art, and its specific structure and working principle will not be described in detail. The roller jaw assembly 340 clamps the tube material, and the rotary disk 320 drive assembly drives the rotary disk 320 to rotate, thereby driving the roller jaw assembly 340 and the tube material to rotate synchronously, so that the laser assembly cuts the tube material; the second drive device 520 is set on the side of the roller jaw assembly 340 away from the rotary disk 320, and drives the jaw body 510 to clamp the tail of the tube material, which can effectively prevent the tube material from shaking or shifting, and ensure that the laser cutting head can stably and accurately cut the tail of the tube material, further improving the cutting quality.

[0025] If the pipe lacks sufficient support in certain directions, it may experience instability such as swaying or twisting due to external forces during cutting. Therefore, in one embodiment, the number of roller jaw assemblies 340 is four sets, with the four sets of roller jaw assemblies 340 positioned opposite each other in pairs. Two sets of material pulling jaws 500 are respectively disposed on the side of the two sets of opposite roller jaw assemblies 340 that are away from the rotating disk 320. The four sets of roller clamping jaws 340 are arranged in pairs facing each other, which can fix the pipe in a ring-like manner from multiple directions, effectively avoiding shaking or displacement of the pipe due to uneven force during the cutting process. The two sets of pulling jaws 500 are respectively set on the side of the two sets of roller clamping jaws 340 facing each other away from the rotating disk 320. During the cutting process, the roller clamping jaws 340 are responsible for fixing the main body of the pipe from multiple directions, while the pulling jaws 500 focus on the precise clamping and pulling operation of the tail of the pipe. The two work together to ensure that the pipe maintains overall stability throughout the cutting process, and when the tail needs to be cut, the tail material can be smoothly pulled to the appropriate position for the laser cutting head to cut, which improves the coordination between the operation links and optimizes the cutting process.

[0026] When cutting pipes, the chuck body 300 may not move to the correct position or may move excessively, causing the laser cutting head to be unable to accurately cut the pipe. Therefore, in one embodiment, the first driving device 400 includes a first gear 410, a rack 420, and a drive motor 430. The rack 420 is mounted on the frame 100 and parallel to the first guide rail 110. The drive motor 430 is mounted on the mounting base 200. The first gear 410 and the drive unit of the drive motor 430 are coaxially rotatable, and the first gear 410 and the rack 420 mesh with each other. Through the meshing transmission of the first gear 410 and the rack 420, the rotational power of the drive motor 430 is efficiently converted into linear motion power, driving the chuck body 300 to move smoothly along the first guide rail 110 parallel to the rack 420, ensuring the accuracy and quality of the cutting.

[0027] During long-term operation, problems such as insufficient lubrication and accumulation of dust and debris may occur, leading to decreased transmission efficiency, increased noise, and accelerated wear of components. Therefore, in one embodiment, the first drive device 400 further includes a felt wheel 440 and an auxiliary shaft 450. The auxiliary shaft 450 is disposed on the lower surface of the mounting base 200. The felt wheel 440 and the auxiliary shaft 450 are rotatable relative to each other, and the side of the felt wheel 440 contacts the rack 420. The felt wheel 440 can be pre-impregnated with lubricating oil or lubricated by an automatic oil supply device during operation. When the felt wheel 440 contacts the rack 420, the lubricating oil is evenly coated on the surface of the rack 420, forming a lubricating film. This effectively reduces the coefficient of friction between the gear and the rack 420, reduces energy loss during transmission, improves transmission efficiency, and makes the translation of the chuck body 300 smoother.

[0028] When clamping the tail of the pipe, sufficient and stable clamping force may not be provided, making the pipe prone to shaking and displacement during the cutting process. Therefore, in one embodiment, the second driving device 520 is a cylinder, which is fixed to the chuck body 300, and the telescopic part of the cylinder is fixedly connected to the jaw body 510. The cylinder, fixed to the chuck body 300, can stably provide linear driving force to the jaw body 510. When it is necessary to clamp or release the tail of the pipe, its stable output force can ensure that the jaw body 510 accurately completes the corresponding action, ensuring the fixation effect of the pipe during the cutting process and helping to improve the cutting accuracy and quality; when the pipe is close to the limit of the tail material, it can clamp the tail in time, which can cooperate with the subsequent cutting process and improve the efficiency and smoothness of the entire cutting process.

[0029] The chuck body 300 may lack sufficient support during operation, potentially leading to instability such as wobbling or sinking. Therefore, in one embodiment, the mounting base 200 includes a vertical plate 210, a horizontal plate 220, a first slider 230, and a second slider 240. The vertical plate 210 is disposed on and perpendicular to the horizontal plate 220. The first slider 230 is disposed on the horizontal plate 220 and slidably connected to the first guide rail 110. The second slider 240 is disposed on the vertical plate 210 and slidably connected to the second guide rail 120. The first slider 230 is mounted on the horizontal plate 220 and slidably connected to the first guide rail 110. The second slider 240 is mounted on the vertical plate 210 and slidably connected to the second guide rail 120, forming a double guide rail and double slider guiding mechanism to avoid skewing, jamming, etc., and improve the accuracy of the movement of the chuck body 300. In the process of pipe cutting, precise guidance is crucial for accurately sending the tail of the pipe to the cutting area of ​​the laser cutting head and achieving high-quality zero tail cutting.

[0030] During the cutting process, the tube may slip due to the force of the laser cutting head, the rotation of the tube itself, or other factors. Therefore, in one embodiment, the jaw body 510 is provided with a serrated section 511, which is located on the side of the jaw body 510 away from the second driving device 520. The serrated section 511 increases the contact area and friction coefficient between the jaw body 510 and the surface of the tube, forming multiple contact points and interlocking areas, generating greater friction. This effectively resists the slippage tendency caused by the force of the laser cutting head, the rotation of the tube itself, or other factors during the cutting process, ensuring that the tube maintains a stable position during the cutting process and avoiding cutting position deviation and quality degradation caused by slippage.

[0031] Different pipe materials vary in diameter, wall thickness, etc., resulting in different requirements for the height of the chuck seat 310. Therefore, in one embodiment, the chuck seat 310 is connected to the mounting base 200 by bolts. The chuck seat 310 has a vertically arranged oblong hole 311, which allows for bolt displacement. Through the engagement of the oblong hole 311 and the bolts, the chuck seat 310 can be flexibly adjusted in the vertical direction. The height of the chuck seat 310 can be easily adjusted according to the actual size of the pipe and the cutting process requirements, ensuring that the chuck body 300 and its related components are at the optimal working height, expanding the range of pipe materials it can be adapted to, and improving the versatility of the equipment.

[0032] A pipe cutting machine, comprising a chuck as described in any of the preceding claims.

[0033] Equipped with the aforementioned chuck, the pipe is ensured to be in optimal condition during the cutting process. The laser cutting head can precisely cut the pipe according to the preset path, achieving high-quality and high-precision cutting of both the main body and the tail of the pipe. This effectively reduces the generation of waste products due to cutting errors, improves production efficiency, shortens the processing cycle, and meets the requirements of large-scale, high-efficiency production. The chuck also enables zero-tail cutting, avoiding waste of pipe tail material and reducing raw material costs.

[0034] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A chuck, characterized in that: The device includes a frame, a first guide rail, a second guide rail, a mounting base, a chuck body, a first drive device, and two sets of material pulling jaws. The first guide rail is located on the top of the frame, and the second guide rail is located on one side of the frame and parallel to the first guide rail. The mounting base is slidably connected to the first and second guide rails. The first drive device drives the mounting base to translate along the first guide rail. The chuck body is located on the mounting base and is used to assist in supporting the pipe material. Each set of material pulling jaws includes a jaw body and a second drive device. The second drive device is located on one side of the chuck body, and the jaw body is located in the drive part of the second drive device. A clamping space is provided between the two material pulling jaws. The two second drive devices drive the two jaw bodies to move closer or further apart to adjust the width of the clamping space.

2. A chuck according to claim 1, characterized in that, The chuck body includes a chuck seat, a rotary disk, a rotary disk drive assembly, and a roller jaw assembly. The chuck seat is disposed on the mounting base, the rotary disk is disposed on the chuck seat and can rotate relative to the chuck seat, the rotary disk drive assembly drives the rotary disk to rotate, the roller jaw assembly is disposed on the rotary disk, and the second drive device is disposed on the side of the roller jaw assembly away from the rotary disk.

3. A chuck according to claim 2, characterized in that, The number of roller claw assemblies is four sets, and the four sets of roller claw assemblies are positioned opposite each other in pairs. The two sets of material pulling claws are respectively set on the side of the two sets of roller claw assemblies that are opposite each other, away from the rotating disk.

4. A chuck according to claim 1, characterized in that, The first driving device includes a first gear, a rack, and a drive motor. The rack is mounted on the frame and is parallel to the first guide rail. The drive motor is mounted on the mounting base. The first gear is coaxially rotatably mounted with the drive unit of the drive motor, and the first gear and the rack mesh with each other.

5. A chuck according to claim 4, characterized in that, The first driving device further includes a felt wheel and an auxiliary shaft. The auxiliary shaft is disposed on the lower surface of the mounting base. The felt wheel and the auxiliary shaft are rotatable relative to each other. The side of the felt wheel contacts the rack.

6. A chuck according to claim 1, characterized in that, The second driving device is a cylinder, which is fixed on the chuck body, and the telescopic part of the cylinder is fixedly connected to the chuck body.

7. A chuck according to claim 1, characterized in that, The mounting base includes a vertical plate, a horizontal plate, a first slider, and a second slider. The vertical plate is disposed on the horizontal plate and is perpendicular to the horizontal plate. The first slider is disposed on the horizontal plate and is slidably connected to the first guide rail. The second slider is disposed on the vertical plate and is slidably connected to the second guide rail.

8. A chuck according to claim 1, characterized in that, The chuck body is provided with a serrated section, which is located on the side of the chuck body away from the second driving device.

9. A chuck according to claim 2, characterized in that, The chuck seat is connected to the mounting base by bolts, and the chuck seat has a vertically arranged oblong hole, which allows the bolts to move.

10. A pipe cutting machine, characterized in that, Includes the chuck as described in any one of claims 1-9.

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