Chuck and pipe cutting machine

Abstract

The invention relates to the technical field of laser pipe cutting machine equipment, in particular to a chuck and a pipe cutting machine. The chuck comprises a rack, a first guide rail, a second guide rail, a mounting base, a chuck body, a first driving device and two sets of material pulling clamping jaws, the mounting base is slidably connected with the first guide rail and the second guide rail, and the first driving device drives the mounting base to translate along the first guide rail; the chuck body is arranged on the mounting base and used for assisting in supporting a pipe material, each set of material pulling clamping jaw comprises a clamping jaw body and a second driving device, the second driving device is arranged on one side of the chuck body, the clamping jaw body is arranged on a driving part of the second driving device, and a clamping space is formed between the two material pulling clamping jaws; the two second driving devices drive the two clamping jaw bodies to be close to or away from each other so as to adjust the width of the clamping space. The tail of the pipe is clamped through the material pulling clamping jaw, and the first driving device drives the chuck body to translate, so that the laser cutting head can effectively cut the tail material of the pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of laser tube cutting machine equipment, in particular to a chuck and a tube cutting machine. Background Art

[0002] Existing laser tube cutting machines are typically equipped with a pusher chuck and a clamping chuck. The pusher chuck has a fixed portion that contacts the inner wall of the tube. Once inserted into the tube, this fixed portion drives the tube to rotate and move back and forth. The clamping chuck is located on one side of the laser cutting head, primarily providing auxiliary support and rotating synchronously with the rear chuck. However, due to the fixed structure of the pusher chuck, the portion of the tube where the fixed portion is inserted cannot be cut during the cutting process, resulting in wasteful tube scrap. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the portion of the fixing portion inserted into the pipe material cannot be cut during the cutting process, which results in waste of pipe material tailings.

[0004] The solution of the present invention to its technical problem is: a chuck, which includes a frame, a first guide rail, a second guide rail, a mounting seat, a chuck body, a first driving device and two groups of pulling claws, the first guide rail is arranged on the top of the frame, the second guide rail is arranged on one side of the frame and parallel to the first guide rail, the mounting seat is slidably connected to the first guide rail and the second guide rail, the first driving device drives the mounting seat to translate along the first guide rail, the chuck body is arranged on the mounting seat for auxiliary support of the pipe material, each group of the pulling claws includes a claw body and a second driving device, the second driving device is arranged on one side of the chuck body, the claw body is arranged on the driving part of the second driving device, a clamping space is provided between the two pulling claws, and the two second driving devices drive the two claw bodies to move closer to or away from each other to adjust the width of the clamping space.

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

[0006] As a further improvement of the above technical solution, the number of the roller claw assemblies is four, and the positions of the four groups of roller claw assemblies are opposite to each other. The two groups of pulling claws are respectively arranged on the side of the two opposite groups of roller claw assemblies away from the rotating disk.

[0007] As a further improvement of the above technical solution, the first driving device includes a first gear, a rack and a driving motor, the rack is arranged on the frame and parallel to the first guide rail, the driving motor is arranged on the mounting seat, the first gear is arranged to rotate coaxially with the driving part of the driving motor, and the first gear and the rack are meshed.

[0008] As a further improvement of the above technical solution, the first driving device also includes a felt wheel and an auxiliary shaft. The auxiliary shaft is arranged on the lower surface of the mounting seat. The felt wheel and the auxiliary shaft can rotate relative to each other, and the side of the felt wheel is in contact with the rack.

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

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

[0011] As a further improvement of the above technical solution, a sawtooth segment is provided on the claw body, and the sawtooth segment is arranged on a side of the claw body away from the second driving device.

[0012] As a further improvement of the above technical solution, the chuck seat is connected to the mounting seat by bolts, and a waist-shaped hole is vertically provided on the chuck seat, and the waist-shaped hole can be used for displacement of the bolt.

[0013] A pipe cutting machine comprises the chuck as described in any one of the above items.

[0014] Equipped with the above-mentioned chuck, it can ensure that the pipe is in the best condition during the cutting process. The laser cutting head can accurately cut the pipe according to the preset path. Whether it is the main part or the tail of the pipe, it can achieve high-quality and high-precision cutting, effectively reducing the waste caused by cutting errors, improving production efficiency, shortening the processing cycle, and meeting the requirements of large-scale and high-efficiency production; the chuck can achieve zero-tail cutting, avoiding the waste of pipe tails and reducing raw material costs.

[0015] The beneficial effects of the present invention are as follows: the frame provides a stable installation base; the first guide rail and the second guide rail jointly provide a guide for the sliding movement of the mounting seat; the chuck body assists in supporting the pipe material, providing stable support for the pipe material during the cutting process; the second drive device drives the two jaw bodies to move closer or further away from each other, thereby adjusting the width of the clamping space, thereby achieving clamping and loosening of the pipe material tail, effectively fixing the pipe material tail; the first drive device drives the mounting seat to move the mounting seat along the first guide rail to cooperate with the laser cutting head to perform the cutting operation on the pipe material tail. The present invention uses the pulling jaws to clamp the pipe material tail, and the first drive device drives the chuck body to move horizontally, so that the laser cutting head can effectively cut the pipe material tail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described only illustrate some embodiments of the present invention, not all embodiments. Those skilled in the art can derive other design solutions and drawings based on these drawings without inventive effort.

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

[0018] Reference numerals in the accompanying drawings: 100-frame; 110-first guide rail; 120-second guide rail; 200-mounting seat; 210-vertical plate; 220-horizontal plate; 230-first slider; 240-second slider; 300-chuck body; 310-chuck seat; 311-waist-shaped hole; 320-rotating disk; 330-rotating disk drive assembly; 340-roller claw assembly; 400-first driving device; 410-first gear; 420-rack; 430-driving motor; 440-felt wheel; 450-auxiliary shaft; 500-pulling claw; 510-claw body; 511-sawtooth segment; 520-second driving device. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interactively without conflicting with each other.

[0020] Existing laser tube cutting machines are typically equipped with a pusher chuck and a clamping chuck. The pusher chuck has a fixed portion that contacts the inner wall of the tube. Once inserted into the tube, this fixed portion drives the tube to rotate and move back and forth. The clamping chuck is located on one side of the laser cutting head, primarily providing auxiliary support and rotating synchronously with the rear chuck. However, due to the fixed structure of the pusher chuck, the portion of the tube where the fixed portion is inserted cannot be cut during the cutting process, resulting in wasteful tube scrap.

[0021] For this purpose, the present invention proposes a chuck, referring to Figures 1 to 3 , which includes a frame 100, a first guide rail 110, a second guide rail 120, a mounting seat 200, a chuck body 300, a first driving device 400 and two sets of material pulling claws 500, the first guide rail 110 is set on the top of the frame 100, the second guide rail 120 is set on one side of the frame 100 and is parallel to the first guide rail 110, the mounting seat 200 is slidably connected to the first guide rail 110 and the second guide rail 120, and the first driving device 400 drives the mounting seat 200 to translate along the first guide rail 110 The chuck body 300 is arranged on the mounting seat 200 to assist in supporting the pipe material. Each group of the pulling jaws 500 includes a jaw body 510 and a second driving device 520. The second driving device 520 is arranged on one side of the chuck body 300. The jaw body 510 is arranged 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 to or 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 jointly guide the sliding movement of the mounting base 200; the chuck body 300 assists in supporting the pipe material, providing stable support for the pipe material during the cutting process; the second drive device 520 drives the two jaw bodies 510 toward or away from each other, thereby adjusting the width of the clamping space, thereby clamping and loosening the tail of the pipe material, effectively fixing the tail of the pipe 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 pipe material. The present invention uses the material pulling jaws 500 to clamp the tail of the pipe material, and the first drive device 400 drives the chuck body 300 to move horizontally, so that the laser cutting head can effectively cut the tail of the pipe material.

[0023] During the pipe cutting process, the claw body 510 and the second drive device 520 are in standby mode, the pushing chuck feeds normally, the chuck body 300 clamps the pipe, auxiliary supports the pipe and allows the pipe to rotate and move axially, and the laser cutting head performs laser cutting on the pipe; when the pipe is about to reach the limit tail position, the pushing chuck pushes the tail of the pipe close to the pulling claw 500, and the second drive device 520 is started, so that the claw body 510 clamps the tail of the pipe, and the pushing chuck cancels the clamping of the inner wall of the pipe and resets to prepare for the next loading; the first drive device 400 drives the chuck body 300 to translate along the first guide rail 110, so that the tail of the pipe is in a suitable position for cutting by the laser cutting head, and the laser cutting head cuts the tail of the pipe; the problem of waste of tail caused by the inability to cut the insertion part of the fixed part of the traditional pushing chuck is avoided, and zero tail cutting is achieved through the coordinated work of various components.

[0024] When cutting the tail of the pipe, the pipe may experience instability such as shaking or displacement. 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 claw assembly 340. The chuck seat 310 is disposed on the mounting base 200, the rotating disk 320 is disposed on the chuck seat 310 and can rotate relative to the chuck seat 310, the rotating disk 320 drive assembly drives the rotating disk 320 to rotate, the roller claw assembly 340 is disposed on the rotating disk 320, and the second drive device 520 is disposed on the side of the roller claw assembly 340 away from the rotating disk 320. Specifically, the chuck body 300 is a prior art, and its specific structure and working principle are not repeated here. The roller claw assembly 340 clamps the pipe material, and the rotating disk 320 driving assembly drives the rotating disk 320 to rotate, so as to drive the roller claw assembly 340 and the pipe material on the rotating disk 320 to rotate synchronously, so that the laser assembly cuts the pipe material; the second driving device 520 is arranged on the side of the roller claw assembly 340 away from the rotating disk 320, driving the claw body 510 to clamp the tail of the pipe material, which can effectively prevent the pipe material from shaking, displacement, etc., and ensure that the laser cutting head can stably and accurately cut the tail of the pipe material, further improving the cutting quality.

[0025] Lack of adequate support in certain directions may cause the pipe to wobble, twist, or experience other instability during cutting due to external forces. Therefore, in one embodiment, the roller claw assemblies 340 are provided in four sets, each of which is positioned opposite each other. Two sets of the pulling claws 500 are respectively disposed on the side of the two opposing roller claw assemblies 340 that is away from the rotating disk 320. The four groups of roller claw assemblies 340 are arranged in pairs opposite to each other, which can encircle and fix the pipe from multiple directions, effectively preventing the pipe from shaking, shifting, etc. due to uneven force during the cutting process; the two groups of pulling claws 500 are respectively arranged on the side of the two opposite roller claw assemblies 340 away from the rotating disk 320. During the cutting process, the roller claw assembly 340 is responsible for fixing the pipe body from multiple directions, while the pulling claw 500 focuses on the precise clamping and pulling operations on the tail of the pipe. The two work together to ensure that the pipe can maintain overall stability throughout the entire cutting process, and when the tail needs to be cut, the tail material can be smoothly pulled to the appropriate position for cutting by the laser cutting head, which improves the coordination between various operation links and optimizes the cutting process.

[0026] When cutting a pipe, the chuck body 300 may not move into place or move excessively, resulting in the laser cutting head being 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 arranged on the frame 100 and parallel to the first guide rail 110. The drive motor 430 is arranged on the mounting seat 200. The first gear 410 is coaxially rotated with the drive portion of the drive motor 430, and the first gear 410 and the rack 420 are meshed. 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 the power of linear motion, driving the chuck body 300 to translate smoothly along the first guide rail 110 parallel to the rack 420, thereby ensuring the accuracy and quality of the cutting.

[0027] During long-term operation, problems such as insufficient lubrication, accumulation of dust and debris may occur, resulting in reduced transmission efficiency, increased noise, and increased wear of components. Therefore, in one embodiment, the first drive device 400 also includes a felt wheel 440 and an auxiliary shaft 450. The auxiliary shaft 450 is arranged on the lower surface of the mounting seat 200. The felt wheel 440 and the auxiliary shaft 450 can rotate relative to each other, and the side of the felt wheel 440 is in contact with the rack 420. The felt wheel 440 can be pre-impregnated with lubricating oil or replenished with lubricating oil through an automatic oil supply device during operation. When the felt wheel 440 contacts the rack 420, the lubricating oil will be evenly applied to the surface of the rack 420, forming a lubricating film, which can effectively reduce the friction coefficient between the gear and the rack 420, reduce energy loss during transmission, improve transmission efficiency, and make the translation of the chuck body 300 smoother.

[0028] When clamping the tail of the pipe, it may not be possible to provide sufficient and stable clamping force, 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 on the chuck body 300, and the telescopic part of the cylinder is fixed to the claw body 510. The cylinder is fixed on the chuck body 300 and can stably provide a linear driving force for the claw body 510. When the tail of the pipe needs to be clamped or released, its stable output force can ensure that the claw body 510 accurately completes the corresponding action, ensuring the fixing effect of the pipe during the cutting process, and helping to improve the accuracy and quality of the cutting; when the pipe is close to the limit tail, the tail can be clamped in time to cooperate with the subsequent cutting process to improve the efficiency and smoothness of the entire cutting process.

[0029] The chuck body 300 may lack sufficient support during operation and may experience instability such as shaking 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 the horizontal plate 220 and is perpendicular to the horizontal plate 220. The first slider 230 is disposed on the horizontal plate 220 and is slidably connected to the first guide rail 110. The second slider 240 is disposed on the vertical plate 210 and is slidably connected to the second guide rail 120. The first slider 230 is arranged on the horizontal plate 220 and is slidably connected to the first guide rail 110, and the second slider 240 is arranged on the vertical plate 210 and is slidably connected to the second guide rail 120, forming a guiding mechanism of double guide rails and double sliders, avoiding deflection, jamming, etc., and improving the movement accuracy of the chuck body 300; during the pipe cutting process, precise guidance is crucial for accurately delivering 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 pipe may slip due to factors such as the force of the laser cutting head and the pipe's own rotation. Therefore, in one embodiment, the jaw body 510 is provided with a serrated segment 511, located on the side of the jaw body 510 facing away from the second drive device 520. The serrated segment 511 increases the contact area and friction coefficient between the jaw body 510 and the pipe surface, creating multiple contact points and engaging areas, generating greater friction. This effectively resists the tendency to slip during the cutting process caused by factors such as the force of the laser cutting head and the pipe's own rotation, ensuring that the pipe maintains a stable position during the cutting process and preventing deviations in the cutting position and quality degradation caused by slippage.

[0031] Different pipes differ in terms of diameter, wall thickness, etc., and therefore have different requirements for the height position of the chuck seat 310. Therefore, in one embodiment, the chuck seat 310 is connected to the mounting base 200 via bolts, and a waist-shaped hole 311 is vertically provided on the chuck seat 310, and the waist-shaped hole 311 can be used for bolt displacement. By combining the waist-shaped hole 311 with the bolt, the chuck seat 310 can be flexibly adjusted in height in the vertical direction. The height of the chuck seat 310 can be conveniently 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 adaptability range of the pipe and improving the versatility of the equipment.

[0032] A pipe cutting machine comprises the chuck as described in any one of the above items.

[0033] Equipped with the above-mentioned chuck, it can ensure that the pipe is in the best condition during the cutting process. The laser cutting head can accurately cut the pipe according to the preset path. Whether it is the main part or the tail of the pipe, it can achieve high-quality and high-precision cutting, effectively reducing the waste caused by cutting errors, improving production efficiency, shortening the processing cycle, and meeting the requirements of large-scale and high-efficiency production; the chuck can achieve zero-tail cutting, avoiding the waste of pipe tails and reducing raw material costs.

[0034] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A chuck, characterized in that: The chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a second drive device, and the chuck body is provided with a first drive device and a clamping space is provided between the two chucks.

2. A chuck according to claim 1, characterized in that: The chuck body includes a chuck seat, a rotating disk, a rotating disk driving assembly and a roller claw assembly. The chuck seat is arranged on the mounting seat, the rotating disk is arranged on the chuck seat and can rotate relative to the chuck seat, the rotating disk driving assembly drives the rotating disk to rotate, the roller claw assembly is arranged on the rotating disk, and the second driving device is arranged on a side of the roller claw assembly away from the rotating disk.

3. A chuck according to claim 2, characterized in that: There are four groups of roller claw assemblies, and the positions of the four groups of roller claw assemblies are opposite to each other. The two groups of pulling claws are respectively arranged on the side of the two opposite groups of roller claw assemblies 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 driving motor. The rack is arranged on the frame and parallel to the first guide rail. The driving motor is arranged on the mounting seat. The first gear is arranged to rotate coaxially with the driving part of the driving motor. The first gear and the rack are meshed.

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 arranged on the lower surface of the mounting seat. The felt wheel and the auxiliary shaft can rotate relative to each other. The side of the felt wheel is in contact with 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 clamping claw body.

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

8. A chuck according to claim 1, characterized in that: The clamping claw body is provided with a sawtooth section, and the sawtooth section is arranged on a side of the clamping claw 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 seat through bolts. A waist-shaped hole is vertically provided on the chuck seat, and the waist-shaped hole can be used for displacement of the bolt.

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

Images