A laser pipe cutting machine with adaptive pipe diameter

Abstract

The application discloses a laser pipe cutting machine with self-adaptive pipe diameter and belongs to the field of laser cutting. The device comprises a workbench and a laser cutting head vertically arranged above the workbench. The top surface of the workbench is provided with a first support seat and a second support seat side by side. The first support seat and the second support seat are respectively arranged on the opposite sides of the laser cutting head. The opposite inner sides of the first support seat and the second support seat are both rotationally connected with a first electric three-jaw chuck. A discharging mechanism corresponding to the first electric three-jaw chuck is arranged on the second support seat. By adopting the first electric three-jaw chuck, different diameter pipes can be clamped, the downtime is shortened, the pipe cutting efficiency is ensured, the automatic discharging of the cut pipes is realized by the discharging mechanism, the automation degree of the laser pipe cutting machine is effectively improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This invention relates to the field of laser cutting, and in particular to a laser tube cutting machine with adaptive tube diameter. Background Technology

[0002] Laser tube cutting machines utilize a high-power-density laser beam to irradiate the surface of tubes, rapidly heating the material to its vaporization temperature and causing evaporation to form a kerf. This allows for high-precision and high-efficiency cutting of pipes and profiles. Due to its advantages such as high processing accuracy, high speed, and no need for secondary processing, it has been widely used in industries such as building steel structures, construction machinery, automobile manufacturing, and smart homes.

[0003] Currently, traditional laser tube cutting machines mainly consist of a feeding mechanism, a chuck mechanism, and a cutting mechanism, controlled by a computer and CNC system to process tubes. However, existing laser tube cutting machines still have the following shortcomings in practical applications: When clamping tubes of different diameters, the chuck mechanism of existing laser tube cutting machines requires manual adjustment of the chuck jaws, resulting in long downtime and affecting tube cutting efficiency; furthermore, after cutting, existing laser tube cutting machines require manual removal of the cut tubes, indicating low automation and increasing the labor intensity of workers. Therefore, there is an urgent need to research and develop a laser tube cutting machine that adapts to different tube diameters to solve these problems. Summary of the Invention

[0004] This invention provides a laser tube cutting machine with adaptive tube diameter, which can solve the technical problems of long downtime and low degree of automation in the prior art.

[0005] An adaptive diameter laser tube cutting machine includes a worktable and a laser cutting head vertically mounted above the worktable; a first support base and a second support base are arranged side by side on the top surface of the worktable; the first support base and the second support base are respectively located on opposite sides of the laser cutting head; a first electric three-jaw chuck is rotatably connected to the opposite inner surfaces of the first support base and the second support base; and a unloading mechanism corresponding to the first electric three-jaw chuck is mounted on the second support base.

[0006] As a preferred embodiment of the present invention, the top surface of the workbench is equipped with a feeding mechanism; the feeding mechanism is located on the side of the first support base away from the second support base.

[0007] As a preferred embodiment of the present invention, the feeding mechanism includes a first electric guide rail horizontally fixed to the top surface of the workbench; a first transmission block is fixed to the output end of the first electric guide rail; the movement direction of the first transmission block is parallel to the arrangement direction of the two first electric three-jaw chucks; a feeding hole is provided on one side of the first transmission block along its movement direction.

[0008] As a preferred embodiment of the present invention, a second electric three-jaw chuck corresponding to the feeding hole is rotatably connected to the other side of the first transmission block; the second electric three-jaw chuck is disposed at one end of the feeding hole near the first support seat.

[0009] As a preferred embodiment of the present invention, the laser cutting head is mounted on a displacement mechanism; the displacement mechanism can drive the laser cutting head to move linearly along the arrangement direction of the two first electric three-jaw chucks and drive the laser cutting head to move linearly up and down.

[0010] As a preferred embodiment of the present invention, the displacement mechanism includes a horizontally arranged second electric guide rail; the second electric guide rail is fixed to the top surface of the worktable by a plurality of columns; a second transmission block is fixed to the output end of the second electric guide rail; the movement direction of the second transmission block is parallel to the arrangement direction of the two first electric three-jaw chucks; a third electric guide rail is vertically fixed to one side of the second transmission block; a third transmission block is fixed to the output end of the third electric guide rail; and the laser cutting head is fixed to one side of the third transmission block.

[0011] As a preferred embodiment of the present invention, a feeding hole corresponding to the first electric three-jaw chuck is provided on one side of the first support base; the feeding hole and the feed hole are coaxially arranged; a rotary drive mechanism is installed on the first support base; the rotary drive mechanism can drive the first electric three-jaw chuck on the first support base to rotate.

[0012] As a preferred embodiment of the present invention, the unloading mechanism includes a guide rail and a first cylinder that are horizontally fixed to the surface of the workbench; the bottom of the second support is slidably connected to the guide rail; the length direction of the guide rail is perpendicular to the arrangement direction of the two first electric three-jaw chucks, and the length direction of the guide rail is parallel to the extension and retraction direction of the output end of the first cylinder; the output end of the first cylinder is fixed to the side of the second support away from the first support.

[0013] As a preferred embodiment of the present invention, a push rod is horizontally arranged above the first cylinder; the length direction of the push rod is parallel to the arrangement direction of the two first electric three-jaw chucks; the push rod is slidably inserted into the second support base; one end of the push rod can extend to the three jaws of the first electric three-jaw chuck on the second support base.

[0014] In a preferred embodiment of the present invention, a second cylinder is horizontally arranged above the push rod; the second cylinder is fixed to the top surface of the second support base; the extension and retraction direction of the output end of the second cylinder is perpendicular to the extension and retraction direction of the output end of the first cylinder; a mounting bracket is arranged below the second cylinder; the mounting bracket is fixed to the side of the second support base away from the first support base; a movable rod is rotatably connected to the mounting bracket; one end of the movable rod is rotatably connected to the other end of the push rod; the other end of the movable rod is rotatably connected to the output end of the second cylinder.

[0015] This invention automatically unloads pipes by inserting the pipe fittings onto a first electric three-jaw chuck on a first support base, with one end of the pipe fitting inserted into a first electric three-jaw chuck on a second support base. The pipe fittings are then clamped synchronously by two first electric three-jaw chucks, and a laser cutting head cuts them. During the cutting process, the pipe fittings are rotated by rotating the first electric three-jaw chucks. After cutting, the cut pipe fittings are ejected from the first electric three-jaw chucks on the second support base using an unloading mechanism. This not only effectively ensures the cutting efficiency of the pipe fittings but also improves the automation level of the laser pipe cutting machine and reduces the labor intensity of workers. Attached Figure Description Figure 1 This is a schematic diagram of the structure of a laser tube cutting machine with adaptive tube diameter provided by the present invention.

[0016] Figure 2 for Figure 1 The main view of the structure.

[0017] Figure 3 This is a schematic diagram of the connection between the first support base and the first electric three-jaw chuck of the present invention.

[0018] Figure 4 This is a schematic diagram of the connection between the second support base and the unloading mechanism of the present invention.

[0019] Figure 5 This is a schematic diagram of the unloading mechanism of the present invention.

[0020] Figure 6 This is a schematic diagram showing the relative position between the feeding mechanism and the first support base of the present invention.

[0021] Figure 7 This is a schematic diagram of the feeding mechanism of the present invention.

[0022] Figure 8 This is a schematic diagram of the displacement mechanism of the present invention.

[0023] Explanation of reference numerals in the attached figures: 1-Workbench, 2-Laser cutting head, 3-First support base, 4-Second support base, 5-First electric three-jaw chuck, 6-Unloading mechanism, 7-Loading mechanism, 8-Displacement mechanism, 9-Rotary drive mechanism, 301-Feeding hole, 601-Guide rail, 602-First cylinder, 603-Push rod, 604-Second cylinder, 605-Mounting bracket, 606-Moving rod, 701-First electric guide rail, 702-First transmission block, 703-Feeding hole, 704-Second electric three-jaw chuck, 801-Second electric guide rail, 802-Column, 803-Second transmission block, 804-Third electric guide rail, 805-Third transmission block, 901-Gear motor. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0025] Example 1: like Figures 1-2 As shown in the figure, an adaptive diameter laser tube cutting machine provided by an embodiment of the present invention includes a conventional worktable 1 and a conventional laser cutting head 2 vertically arranged above the worktable 1; a first support base 3 and a second support base 4 are arranged side by side on the top surface of the worktable 1; the first support base 3 is bolted to the top surface of the worktable 1; the first support base 3 and the second support base 4 are respectively arranged on opposite sides of the laser cutting head 2; a conventional first electric three-jaw chuck 5 is rotatably connected to the opposite inner surfaces of the first support base 3 and the second support base 4; and a unloading mechanism 6 corresponding to the first electric three-jaw chuck 5 is installed on the second support base 4.

[0026] Based on the above, by arranging the first support base 3 and the second support base 4 side by side on opposite sides of the laser cutting head 2, the laser cutting head 2 is positioned precisely between the two support bases. This allows for centered cutting of the pipe clamped on the two support bases, while also providing ample operating space for subsequent cutting and unloading operations, thus improving the stability and safety of the cutting process. Since the three jaws of the first electric three-jaw chuck 5 can move radially synchronously, when the pipe is inserted into the first electric three-jaw chuck 5 on the first support base 3 and one end of the pipe is inserted into the first electric three-jaw chuck 5 on the second support base 4, the first electric three-jaw chuck 5 can automatically drive the jaws to clamp the surface of the pipe when energized. During this process, the first electric three-jaw chuck 5 can adjust the clamping action according to the actual external dimensions of the pipe. The radial position of the jaws is adaptively adjusted to achieve rapid and automatic clamping of pipes of different diameters, eliminating the need for manual adjustment of the jaw position. This effectively shortens downtime caused by changing pipe specifications and ensures the cutting efficiency of the pipes. Simultaneously, during the cutting process by the laser cutting head 2, the first electric three-jaw chuck 5 drives the clamped pipe to rotate around its own axis, allowing the laser cutting head 2 to cut the pipe wall. After the pipe is cut, the unloading mechanism 6 pushes the cut pipe out from the first electric three-jaw chuck 5 on the second support base 4, thus completing automatic unloading. This avoids the tedious manual removal of the pipe from the jaws after cutting, improving the automation level of the equipment and significantly reducing the labor intensity of workers.

[0027] Among them, such as Figure 3 and Figure 6 As shown, in order to achieve automatic rotation of the pipe during the cutting process so that the laser cutting head 2 can continuously cut the pipe wall, a feeding hole 301 corresponding to the first electric three-jaw chuck 5 is provided on one side of the first support base 3; the feeding hole 301 and the feeding hole 703 are coaxially arranged; a rotary drive mechanism 9 is installed on the first support base 3; the rotary drive mechanism 9 can drive the first electric three-jaw chuck 5 on the first support base 3 to rotate; the rotary drive mechanism 9 includes a reduction motor 901 vertically fixed on the top surface of the first support base 3; the output shaft of the reduction motor 901 is connected to the first electric three-jaw chuck 5 through a conventional bevel gear assembly in the art. By setting up a rotary drive mechanism 9, the pipe clamped between the two first electric three-jaw chucks 5 can rotate at a preset angle and speed, thereby cooperating with the laser cutting head 2 to achieve circumferential cutting of the pipe without dead angles. Since the bevel gear assembly has the advantages of precise transmission ratio, large load-bearing capacity and compact structure, the high speed and low torque power output by the reduction motor 901 can be converted into low speed and high torque rotational power after being transmitted by the bevel gear assembly, thereby smoothly driving the first electric three-jaw chuck 5 and the pipe clamped therein to rotate, ensuring the stability of the pipe during the rotary cutting process and the flatness of the cut surface.

[0028] Example 2: Based on Example 1, as follows Figure 2 and Figures 6-7 As shown, in order to achieve automated feeding of pipe fittings and further improve the automation level of the equipment, a feeding mechanism 7 is installed on the top surface of the workbench 1; the feeding mechanism 7 is located on the side of the first support base 3 away from the second support base 4; the feeding mechanism 7 includes a first electric guide rail 701 horizontally bolted to the top surface of the workbench 1; the first electric guide rail 701 is a conventional component in the art; the output end of the first electric guide rail 701 is bolted to a first transmission block 702; the movement direction of the first transmission block 702 is parallel to the arrangement direction of the two first electric three-jaw chucks 5; a feeding hole 703 is opened on one side of the first transmission block 702 along its movement direction; a second electric three-jaw chuck 704 corresponding to the feeding hole 703 is rotatably connected to the other side of the first transmission block 702; the second electric three-jaw chuck 704 is a conventional component in the art; the second electric three-jaw chuck 704 is located at one end of the feeding hole 703 near the first support base 3.

[0029] Before feeding, the pipe passes through the feeding hole 703 and the conveying hole 301 in sequence. After the pipe located between the two first electric three-jaw chucks 5 is cut, the first electric three-jaw chuck 5 clamps the pipe, while the second electric three-jaw chuck 704 releases the pipe. Then, the first electric guide rail 701 drives the second electric three-jaw chuck 704 to move a distance away from the first electric three-jaw chuck 5. Then, the second electric three-jaw chuck 704 clamps the pipe and the first electric three-jaw chuck 5 releases the pipe. Then, the first electric guide rail 701 drives the second electric three-jaw chuck 704 to move linearly towards the first electric three-jaw chuck 5, thus feeding the pipe onto the first electric three-jaw chuck 5. This achieves automatic feeding of the pipe and avoids the problems of inaccurate positioning and high labor intensity caused by manual feeding.

[0030] Example 3: Based on Example 2, as follows Figure 2 and Figure 8As shown, in order to achieve precise movement of the laser cutting head 2 in space, the laser cutting head 2 is mounted on a displacement mechanism 8; the displacement mechanism 8 can drive the laser cutting head 2 to move linearly along the arrangement direction of the two first electric three-jaw chucks 5 and to move the laser cutting head 2 up and down linearly; the displacement mechanism 8 includes a horizontally arranged second electric guide rail 801; the second electric guide rail 801 is a conventional component in the art; the second electric guide rail 801 is bolted to the top surface of the worktable 1 through multiple columns 802; the output end of the second electric guide rail 801 is bolted to a second transmission block 803; the movement direction of the second transmission block 803 is parallel to the arrangement direction of the two first electric three-jaw chucks 5; a conventional third electric guide rail 804 in the art is vertically bolted to one side of the second transmission block 803; the output end of the third electric guide rail 804 is bolted to a third transmission block 805; the laser cutting head 2 is bolted to one side of the third transmission block 805.

[0031] The laser cutting head 2 is driven to move along the axial direction of the pipe by the displacement mechanism 8, enabling continuous cutting at different axial positions of the pipe, thereby completing processing tasks such as cutting or drilling. The laser cutting head 2 can be moved up and down by the displacement mechanism 8 to adjust its focal position, adapting to the cutting requirements of different pipe diameters and ensuring cutting quality. Specifically, when the horizontal position of the laser cutting head 2 needs to be adjusted, the second electric guide rail 801 drives the second transmission block 803 to move linearly in the horizontal direction. The second transmission block 803 drives the third electric guide rail 804 and the part fixed to the third transmission block 805. The laser cutting head 2 moves horizontally in sync, thus achieving precise displacement of the laser cutting head 2 along the axial direction of the pipe. When it is necessary to adjust the vertical position of the laser cutting head 2, the third electric guide rail 804 drives the third transmission block 805 to move linearly in the vertical direction. The third transmission block 805 drives the laser cutting head 2 to move up and down synchronously, thereby precisely controlling the vertical distance between the laser cutting head 2 and the surface of the pipe. In short, through the coordinated action of the second electric guide rail 801 and the third electric guide rail 804, the laser cutting head 2 can achieve precise movement in two degrees of freedom, providing a reliable motion guarantee for high-precision cutting.

[0032] Example 4: Based on Example 3, as follows Figure 2 and Figures 4-5 As shown, in order to achieve automatic unloading of the cut pipe fittings, the unloading mechanism 6 includes a guide rail 601 and a first cylinder 602 that are horizontally bolted to the upper surface of the workbench 1; the bottom of the second support 4 is slidably connected to the guide rail 601; the length direction of the guide rail 601 is perpendicular to the arrangement direction of the two first electric three-jaw chucks 5, and the length direction of the guide rail 601 is parallel to the extension and retraction direction of the output end of the first cylinder 602; the output end of the first cylinder 602 is bolted to the side of the second support 4 away from the first support 3.

[0033] After the pipe is cut, the first cylinder 602 drives the second support seat 4 to move linearly along the guide rail 601, causing the two pipe sections to be misaligned. Then, the first electric three-jaw chuck 5 on the second support seat 4 releases its grip on the pipe, causing the pipe to lose its constraint. Then, the pipe falls off the first electric three-jaw chuck 5 under the action of gravity, thereby realizing the automatic unloading of the pipe and effectively ensuring the cutting efficiency of the pipe.

[0034] Among them, such as Figures 4-5 As shown, to improve the efficiency of pipe fitting removal from the first electric three-jaw chuck 5 on the second support base 4, a push rod 603 is horizontally arranged above the first cylinder 602; the length direction of the push rod 603 is parallel to the arrangement direction of the two first electric three-jaw chucks 5; the push rod 603 slides through the second support base 4; one end of the push rod 603 can extend between the three jaws of the first electric three-jaw chuck 5 on the second support base 4. When the two pipe fittings are staggered, one end of the push rod 603 passes through the second support base 4 and inserts between the three jaws of the first electric three-jaw chuck 5, pushing the pipe fitting still in the jaw area axially out, thereby achieving complete separation of the pipe fitting from the first electric three-jaw chuck 5 on the second support base 4, effectively improving the unloading effect of the pipe fitting.

[0035] Furthermore, such as Figures 4-5As shown, in order to achieve automatic retraction of the push rod 603 and avoid interference with the next feeding, a second cylinder 604 is horizontally arranged above the push rod 603; the second cylinder 604 is bolted to the top surface of the second support base 4; the extension and retraction direction of the output end of the second cylinder 604 is perpendicular to the extension and retraction direction of the output end of the first cylinder 602; a mounting bracket 605 is arranged below the second cylinder 604; the mounting bracket 605 is bolted to the side of the second support base 4 away from the first support base 3; a movable rod 606 is rotatably connected to the mounting bracket 605; one end of the movable rod 606 is rotatably connected to the other end of the push rod 603; the other end of the movable rod 606 is rotatably connected to the output end of the second cylinder 604. When the output end of the second cylinder 604 extends, it pulls the upper end of the movable rod 606 to rotate around the hinge point on the mounting frame 605. The lower end of the movable rod 606 then pushes the push rod 603 to move linearly towards the first support seat 3, causing one end of the push rod 603 to extend between the three jaws of the first electric three-jaw chuck 5 on the second support seat 4. When the output end of the second cylinder 604 retracts, it pushes the movable rod 606 to rotate in the opposite direction. The lower end of the movable rod 606 then pulls the push rod 603 to retract away from the first support seat 3, causing the end of the push rod 603 to exit between the jaws of the first electric three-jaw chuck 5 on the second support seat 4. In summary, the automatic reciprocating motion of the push rod 603 is achieved through the linkage mechanism composed of the second cylinder 604, the movable rod 606, and the mounting frame 605, further improving the automation level of the equipment.

[0036] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A laser tube cutting machine with adaptive tube diameter, comprising a worktable (1) and a laser cutting head (2) vertically disposed above the worktable (1); characterized in that: The top surface of the workbench (1) is provided with a first support base (3) and a second support base (4) arranged side by side; the first support base (3) and the second support base (4) are respectively located on opposite sides of the laser cutting head (2); the inner surfaces of the first support base (3) and the second support base (4) are rotatably connected to a first electric three-jaw chuck (5); the second support base (4) is equipped with a unloading mechanism (6) corresponding to the first electric three-jaw chuck (5).

2. The adaptive diameter laser tube cutting machine as described in claim 1, characterized in that, The top surface of the workbench (1) is equipped with a feeding mechanism (7); the feeding mechanism (7) is located on the side of the first support seat (3) away from the second support seat (4).

3. The adaptive diameter laser tube cutting machine as described in claim 2, characterized in that, The feeding mechanism (7) includes a first electric guide rail (701) horizontally fixed on the top surface of the workbench (1); a first transmission block (702) is fixed at the output end of the first electric guide rail (701); the movement direction of the first transmission block (702) is parallel to the arrangement direction of the two first electric three-jaw chucks (5); a feeding hole (703) is opened on one side of the first transmission block (702) along its movement direction.

4. The adaptive diameter laser tube cutting machine as described in claim 3, characterized in that, The other side of the first transmission block (702) is rotatably connected to a second electric three-jaw chuck (704) corresponding to the feeding hole (703); the second electric three-jaw chuck (704) is located at one end of the feeding hole (703) near the first support base (3).

5. The adaptive diameter laser tube cutting machine as described in claim 1, characterized in that, The laser cutting head (2) is mounted on a displacement mechanism (8); the displacement mechanism (8) can drive the laser cutting head (2) to move linearly along the arrangement direction of the two first electric three-jaw chucks (5) and drive the laser cutting head (2) to move linearly up and down.

6. The adaptive pipe diameter laser pipe cutting machine as described in claim 5, characterized in that, The displacement mechanism (8) includes a horizontally arranged second electric guide rail (801); the second electric guide rail (801) is fixed to the top surface of the workbench (1) by multiple columns (802); a second transmission block (803) is fixed to the output end of the second electric guide rail (801); the movement direction of the second transmission block (803) is parallel to the arrangement direction of the two first electric three-jaw chucks (5); a third electric guide rail (804) is vertically fixed to one side of the second transmission block (803); a third transmission block (805) is fixed to the output end of the third electric guide rail (804); and the laser cutting head (2) is fixed to one side of the third transmission block (805).

7. A laser tube cutting machine with adaptive tube diameter as described in claim 3 or 4, characterized in that, The first support base (3) has a feeding hole (301) on one side corresponding to the first electric three-jaw chuck (5); the feeding hole (301) and the feeding hole (703) are coaxially arranged; the first support base (3) is equipped with a rotary drive mechanism (9); the rotary drive mechanism (9) can drive the first electric three-jaw chuck (5) on the first support base (3) to rotate.

8. The adaptive diameter laser tube cutting machine as described in claim 1, characterized in that, The unloading mechanism (6) includes a guide rail (601) and a first cylinder (602) that are horizontally fixed on the upper surface of the workbench (1); the bottom of the second support (4) is slidably connected to the guide rail (601); the length direction of the guide rail (601) is perpendicular to the arrangement direction of the two first electric three-jaw chucks (5), and the length direction of the guide rail (601) is parallel to the extension and retraction direction of the output end of the first cylinder (602); the output end of the first cylinder (602) is fixed on the side of the second support (4) away from the first support (3).

9. The adaptive diameter laser tube cutting machine as described in claim 8, characterized in that, A push rod (603) is horizontally arranged above the first cylinder (602); the length direction of the push rod (603) is parallel to the arrangement direction of the two first electric three-jaw chucks (5); the push rod (603) slides through the second support base (4); one end of the push rod (603) can extend to the three jaws of the first electric three-jaw chuck (5) on the second support base (4).

10. The adaptive diameter laser tube cutting machine as described in claim 9, characterized in that, A second cylinder (604) is horizontally arranged above the push rod (603); the second cylinder (604) is fixed to the top surface of the second support base (4); the extension and retraction direction of the output end of the second cylinder (604) is perpendicular to the extension and retraction direction of the output end of the first cylinder (602); a mounting bracket (605) is arranged below the second cylinder (604); the mounting bracket (605) is fixed to the side of the second support base (4) away from the first support base (3); a movable rod (606) is rotatably connected to the mounting bracket (605); one end of the movable rod (606) is rotatably connected to the other end of the push rod (603); the other end of the movable rod (606) is rotatably connected to the output end of the second cylinder (604).

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