Laser cutting machine for pipes

Abstract

The utility model discloses a laser cutting machine for pipes, which comprises a cutting machine support frame, a cross beam is arranged at the top of the cutting machine support frame, a laser cutting head is movably arranged on the cross beam, and two sides of the lower end of the laser cutting head are respectively provided with a rotary clamping device; the rotary clamping device comprises a center gear, three auxiliary gears are arranged on the periphery of the center gear, the center gear is in meshing transmission with the three auxiliary gears, and the two sides of the center gear and the two sides of the three auxiliary gears are rotationally installed on clamping plates respectively. An extension arm is fixedly arranged on the side, away from the center gear, of the auxiliary gear, a fixing claw is horizontally arranged on the side, facing the laser cutting head, of the extension arm, and the center gear is driven by a first servo motor. According to the utility model, flexible clamping can be carried out according to pipes with pipe diameters; and after clamping, the clamped pipe can be freely driven to rotate freely for multi-angle machining.

Description

Technical Field

[0001] The utility model relates to a laser cutting machine for pipes, belonging to the technical field of pipe laser cutting. Background Technique

[0002] As a modern precision machining method, laser cutting has unparalleled advantages compared with traditional machining methods: laser machining can ensure the original accuracy of workpieces, has a wide adaptability to materials, can produce very fine patterns on the surfaces of various metals and some non-metallic materials with very good durability; the spatial control and time control of lasers are very good, especially suitable for automated machining and special surface machining, and the machining method is flexible.

[0003] Pipes are often used in the industrial and construction fields. In actual applications, after some pipes are cut to the required length, grooves, special-shaped holes and patterns need to be processed on their side walls. With the continuous progress of the times, laser cutting is used for the further processing of round pipes. However, the laser cutting machines in the prior art cannot flexibly clamp pipes with different diameters; moreover, after clamping, they cannot drive the pipes to rotate to process different angles of the pipes.

[0004] In summary, it is obvious that the prior art has inconveniences and defects in actual use, so it is necessary to improve. Content of the Utility Model

[0005] Aiming at the deficiencies in the background technique, the utility model provides a laser cutting machine for pipes, which can be flexibly clamped according to the diameter of the pipes; moreover, after clamping, it can freely drive the clamped pipes to rotate for multi-angle processing.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A laser cutting machine for pipes includes a cutting machine support frame. A cross beam is provided at the top of the cutting machine support frame. A laser cutting head is movably provided on the cross beam. Two rotating clamping devices are respectively provided on both sides of the lower end of the laser cutting head; the rotating clamping device includes a central gear. Three sub-gears are provided around the central gear. The central gear meshes with the three sub-gears for transmission. The two sides of the central gear and the three sub-gears are respectively rotatably installed on a clamping plate; a extending arm is fixedly provided on the side of the sub-gear away from the central gear. A fixed claw is horizontally provided on the side of the extending arm facing the laser cutting head. The central gear is driven by a first servo motor.

[0008] Further, the first servo motor is configured with a torque sensor and a brake.

[0009] Further, the extending arm is perpendicular to the fixed claw, and the fixed claw is parallel to the rotating shaft of the central gear.

[0010] Further, moving seats are provided on the dorsal sides of both of the two rotary clamping devices. A sleeve is provided between the moving seat and the rotary clamping device, and the sleeve is sleeved outside the first servo motor.

[0011] Further, the moving seat on the left is connected to the sleeve through a rotary bearing, and the sleeve is connected to the clamping plate on the dorsal side of the rotary clamping device; the moving seat on the right is connected to the sleeve, and the sleeve is connected to the clamping plate on the dorsal side of the rotary clamping device through a rotary bearing.

[0012] Further, a gear ring is sleeved outside the sleeve on the left. The gear ring is in meshing transmission with the driving gear, and the driving gear is driven by a second servo motor.

[0013] Further, both sides of the two moving seats are slidably mounted on the sliding rods, and both ends of the sliding rods are respectively mounted on the fixed seats.

[0014] Further, a lead screw is rotatably mounted between the two fixed seats. The lead screw is in threaded transmission with the two moving seats, and the helix directions of the threads on both sides of the lead screw are opposite.

[0015] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0016] 1. The central gear drives the rotation of the three sub-gears, drives the three fixed claws to close, and clamps the pipe. After the torque sensor detects that the clamping reaches the set torque, the first servo motor stops outputting power continuously, and the brake brake locks the rotating shaft to make the fixed claws hold the pipe tightly, realizing the clamping of the pipe, and can flexibly clamp various pipes, with good versatility.

[0017] 2. A gear ring is sleeved outside the sleeve on the left. The gear ring is in meshing transmission with the driving gear, and the driving gear is driven by a second servo motor. The rotation of the driving gear can drive the rotation of the two rotary clamping devices, so as to drive the rotation of the pipe for processing.

[0018] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a front view of the present utility model;

[0021] Figure 3 is a structural schematic diagram of the rotary clamping device in the present utility model.

[0022] In the figure,

[0023] 1 - Cutting machine support frame, 2 - Cross beam, 3 - Laser cutting head, 4 - Moving seat, 5 - Sleeve, 6 - Splint, 7 - Sub - gear, 701 - Extension arm, 702 - Fixed claw, 8 - Central gear, 9 - First servo motor, 10 - Rotating bearing, 11 - Tooth ring, 12 - Driving gear, 13 - Second servo motor, 14 - Sliding rod, 15 - Lead screw, 16 - Fixed seat. Detailed implementation mode

[0024] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation mode of the present utility model will now be described with reference to the accompanying drawings.

[0025] As Figures 1-3 shown, the present utility model provides a laser cutting machine for pipes, including a cutting machine support frame 1. A cross beam 2 is provided at the top of the cutting machine support frame 1. A laser cutting head 3 is movably arranged on the cross beam 2. Rotating clamping devices are respectively arranged on both sides at the lower end of the laser cutting head 3.

[0026] The rotating clamping device includes a central gear 8. Three sub - gears 7 are arranged around the central gear 8. The central gear 8 is in meshing transmission with the three sub - gears 7. The two sides of the central gear 8 and the three sub - gears 7 are respectively rotatably installed on the splint 6.

[0027] An extension arm 701 is fixedly provided on the side of the sub - gear 7 away from the central gear 8. A fixed claw 702 is horizontally arranged on the side of the extension arm 701 facing the laser cutting head 3. The central gear 8 is driven by a first servo motor 9.

[0028] The first servo motor 9 is configured with a torque sensor and a brake. The first servo motor 9 drives the central gear 8 to rotate. The central gear 8 drives the three sub - gears 7 to rotate, driving the three fixed claws 702 to close and clamp the pipe. After the torque sensor detects that the clamping reaches the set torque, the first servo motor 9 stops continuing to output power, and the brake locks the rotating shaft, making the fixed claw 702 tightly hold the pipe, realizing the clamping of the pipe.

[0029] The extension arm 701 is perpendicular to the fixed claw 702, and the fixed claw 702 is parallel to the rotating shaft of the central gear 8.

[0030] Moving seats 4 are respectively arranged on the back sides of the two rotating clamping devices. A sleeve 5 is arranged between the moving seat 4 and the rotating clamping device. The sleeve 5 is sleeved on the outside of the first servo motor 9.

[0031] The left - hand moving seat 4 is connected to the sleeve 5 through a rotating bearing 10. The sleeve 5 is connected to the splint 6 on the back side of the rotating clamping device. The right - hand moving seat 4 is connected to the sleeve 5. The sleeve 5 is connected to the splint 6 on the back side of the rotating clamping device through a rotating bearing 10.

[0032] A gear ring 11 is sleeved outside the casing 5 on the left side. The gear ring 11 is in meshing transmission with a driving gear 12, and the driving gear 12 is driven by a second servo motor 13. The rotation of the driving gear 12 can drive the two rotary clamping devices to rotate.

[0033] Both sides of the two moving seats 4 are slidably mounted on the sliding rods 14, and both ends of the sliding rods 14 are respectively mounted on the fixed seats 16.

[0034] A lead screw 15 is rotatably mounted between the two fixed seats 16. The lead screw 15 is in threaded transmission with the two moving seats 4, and the helix directions of the threads on both sides of the lead screw 15 are opposite. When the lead screw 15 rotates, it can drive the two moving seats 4 to separate from or approach each other.

[0035] The specific working principle of the present utility model:

[0036] The rotary clamping device includes a central gear 8 and three sub-gears 7. The central gear 8 is in meshing transmission with the three sub-gears 7. Both sides of the central gear 8 and the three sub-gears 7 are respectively rotatably mounted on the clamping plate 6. The sub-gear 7 is fixedly provided with an extension arm 701, and a fixed claw 702 is horizontally provided on one side of the extension arm 701 facing the laser cutting head 3. The central gear 8 is driven by a first servo motor 9. The central gear 8 drives the three sub-gears 7 to rotate, driving the three fixed claws 702 to close and clamp the pipe. After the torque sensor detects that the clamping reaches the set torque, the first servo motor 9 stops continuing to output power, and the brake brake locks the rotating shaft, so that the fixed claw 702 tightly holds the pipe, realizing the clamping of the pipe, and can flexibly clamp various pipes with good versatility.

[0037] During use, the pipe is placed between the two rotary clamping devices. The lead screw 15 is rotated by a motor to make the two rotary clamping devices approach each other. Then, the pipe is clamped by the fixed claws 702 of the two rotary clamping devices at both ends, and the pipe is driven to rotate and process through the meshing transmission between the gear ring 11 and the driving gear 12.

[0038] The above is an example of the best implementation mode of the present utility model, and the parts not described in detail are all common general knowledge of those skilled in the art. The protection scope of the present utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.

Claims

1. A laser cutting machine for pipe materials, comprising a cutting machine support frame (1), a cross beam (2) is provided at the top of the cutting machine support frame (1), and a laser cutting head (3) is movably arranged on the cross beam (2), and it is characterized in that: On both sides of the lower end of the laser cutting head (3), a rotary clamping device is respectively provided; The rotary clamping device includes a central gear (8). Three sub-gears (7) are arranged around the central gear (8). The central gear (8) meshes and drives with the three sub-gears (7). The two sides of the central gear (8) and the three sub-gears (7) are respectively rotatably installed on the clamping plate (6); On the side of the sub-gear (7) away from the central gear (8), an extension arm (701) is fixedly provided. On the side of the extension arm (701) facing the laser cutting head (3), a fixed claw (702) is horizontally provided. The central gear (8) is driven by a first servo motor (9).

2. The laser cutting machine for pipes according to claim 1, characterized in that: The first servo motor (9) is configured with a torque sensor and a brake.

3. The laser cutting machine for pipes according to claim 1, wherein: The extension arm (701) is perpendicular to the fixed claw (702), and the fixed claw (702) is parallel to the rotating shaft of the central gear (8).

4. A laser cutting machine for pipes according to claim 1, characterized in that: On the back sides of both rotary clamping devices, a moving seat (4) is provided. A sleeve (5) is provided between the moving seat (4) and the rotary clamping device. The sleeve (5) is sleeved outside the first servo motor (9).

5. The laser cutting machine for pipes according to claim 4, characterized in that: The left moving seat (4) is connected to the sleeve (5) through a rotary bearing (10), and the sleeve (5) is connected to the clamping plate (6) on the back side of the rotary clamping device; the right moving seat (4) is connected to the sleeve (5), and the sleeve (5) is connected to the clamping plate (6) on the back side of the rotary clamping device through a rotary bearing (10).

6. The laser cutting machine for pipes according to claim 5, wherein: A gear ring (11) is sleeved outside the left sleeve (5). The gear ring (11) meshes and drives with the driving gear (12). The driving gear (12) is driven by a second servo motor (13).

7. A laser cutting machine for pipes according to claim 4, characterized in that: The two sides of the two moving seats (4) are slidably installed on the sliding rod (14). The two ends of the sliding rod (14) are respectively installed on the fixed seat (16).

8. A laser cutting machine for pipes according to claim 7, characterized in that: A lead screw (15) is rotatably installed between the two fixed seats (16). The lead screw (15) is in threaded transmission with the two moving seats (4). The helix directions of the threads on both sides of the lead screw (15) are opposite.

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