A laser pipe cutting machine with multi-segment linkage synchronous operation

Abstract

The present invention belongs to the technical field of laser pipe cutting machines, and particularly relates to a laser pipe cutting machine with multi-segment linkage synchronous operation, including a fixed frame, a clamping assembly, a support plate, a positioning assembly, an actuator and an electromagnet. A plurality of support frames are arranged above the fixed frame, and laser cutting heads are fixedly installed inside the support frames. The clamping assembly is fixedly installed inside the support frames. The support plate is arranged inside the fixed frame, and a steel pipe is placed above the support plate. The positioning assembly is arranged inside the clamping assembly, and the actuator is arranged below the support plate. The present invention can automatically make cooling water flow into the to-be-cut part of the steel pipe after the clamping assembly restricts the steel pipe, so that the preparatory work before cutting the steel pipe can be completed relatively quickly, thereby correspondingly improving the efficiency of steel pipe cutting and processing; at the same time, reduce shaking, improve the processing precision and quality of products; and the relevant components cooperate with the overall numerical control control and processing, which is beneficial to improving the automation level.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser pipe cutting machines, and particularly relates to a laser pipe cutting machine with multi-segment linkage synchronous operation. Background Art

[0002] When steel pipes are produced, they need to be processed into different lengths for pre-treatment to facilitate subsequent processing, supporting assembly, and sales. Therefore, in the production process of steel pipes, cutting machines are essential equipment. The traditional method is to use cutting tools for cutting. However, the hardness of steel pipes is relatively high, and the loss of the cutting tools will increase correspondingly during cutting. Nowadays, people have developed a laser cutting method. The high temperature of laser particles can quickly melt the steel pipes, which has the advantages of high speed and high precision, and still has great development space in the future.

[0003] Existing laser pipe cutting machines will simultaneously perform multi-segment cutting operations on the same steel pipe. During the multi-segment cutting process, the temperature at the cutting position of the steel pipe will rise sharply. Therefore, a special cooling mechanism needs to be equipped to cool it down, and a clamping mechanism is also required to limit its position. Although the above mechanisms are applied in the prior art, in fact, during the preparation work, the two mechanisms need to be operated separately step by step, which will prolong the preparation work before steel pipe cutting and ultimately reduce the cutting efficiency of the steel pipe. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser pipe cutting machine with multi-segment linkage synchronous operation, which can automatically make cooling water flow into the cutting position of the steel pipe after the clamping component restricts the steel pipe, so that the preparation work before steel pipe cutting can be completed quickly, thereby correspondingly improving the cutting efficiency of the steel pipe.

[0005] The technical solution adopted by the present invention is specifically as follows:

[0006] A laser pipe cutting machine with multi-segment linkage synchronous operation, comprising:

[0007] A fixed frame, above which a plurality of support frames are arranged, and a laser cutting head is fixedly installed inside the support frames;

[0008] A clamping component, which is fixedly installed inside the support frame;

[0009] A support plate, which is arranged inside the fixed frame, on which a steel pipe is placed above, and the support plate is located directly below the support frame;

[0010] A positioning component, which is arranged inside the clamping component;

[0011] An actuator, which is arranged below the support plate and is electrically connected to the mains electricity;

[0012] An electromagnet, the electromagnet is magnetically connected to one end of the clamping assembly, the poles of the end of the electromagnet opposite to the clamping assembly are the same, and the electromagnet is connected to the actuator through a wire;

[0013] Wherein, a reference plate is provided at one end of the fixed frame. After the steel pipe is placed above the support plate, the actuator is electrically connected to the mains power supply. The electromagnet is energized to generate magnetism and drive the clamping assembly to shift, and the clamping assembly gradually approaches the steel pipe.

[0014] As a preferred solution of the laser pipe cutting machine with multi-segment linkage synchronous operation described in the present invention, wherein: a fixed plate is fixedly installed at the bottom end of the fixed frame, an electric push rod is fixedly installed above the fixed plate, a connecting collar is fixedly sleeved at the output end of the electric push rod, a sliding plate is fixedly connected above the connecting collar, a support rod is fixedly connected to the top end of the sliding plate, and the top end of the support rod is fixedly connected to the middle of the lower surface of the support plate.

[0015] As a preferred solution of the laser pipe cutting machine with multi-segment linkage synchronous operation described in the present invention, wherein: two groups of sliding grooves are provided on both sides of the fixed frame. One group of the sliding grooves is slidably connected to the sliding plate, and a connecting plate fixedly connected to the bottom of the support frame is slidably arranged inside the other group of sliding grooves, and the bottom end of the connecting plate is fixedly connected to the upper surface of the sliding plate.

[0016] As a preferred solution of the laser pipe cutting machine with multi-segment linkage synchronous operation described in the present invention, wherein: a fixed sleeve is fixedly installed inside the support frame, the fixed sleeve is fixedly sleeved on the outer surface of the electromagnet, and the fixed sleeve is slidably sleeved on the outer surface of the clamping assembly.

[0017] As a preferred solution of the laser pipe cutting machine with multi-segment linkage synchronous operation described in the present invention, wherein: the clamping assembly includes a clamping plate, a linkage rod, a linkage magnetic plate and a return spring. The clamping plate is arranged below the fixed sleeve, the linkage rod is fixedly connected to one side of the clamping plate, the linkage rod slidably penetrates inside the fixed sleeve, the linkage magnetic plate is fixedly connected to the end of the linkage rod located inside the fixed sleeve, the return spring is fixedly connected to one side of the linkage magnetic plate, and one end of the return spring is fixedly connected to a spring base, and the spring base is fixedly connected to the inner wall of the fixed sleeve.

[0018] As a preferred solution of the laser pipe cutting machine with multi-segment linkage synchronous operation described in the present invention, wherein: a piston block is slidably sleeved inside the fixed sleeve, the piston block is fixedly sleeved on the outer surface of the linkage rod, a cavity is opened inside the piston block, the cavity is arranged outside the positioning assembly, and an inclined notch communicating with the cavity is opened at the bottom of the piston block.

[0019] As a preferred embodiment of the laser pipe cutting machine with multi-segment linkage synchronous operation according to the present invention, wherein: the positioning assembly includes a positioning rod, a hinged rod and a buoyancy ball. The positioning rod slidably penetrates through the middle of the piston block. A positioning groove corresponding to the positioning rod is formed inside the fixed sleeve. The hinged rod is hinged to the bottom of the positioning rod. The buoyancy ball is slidably sleeved inside the cavity. One side of the buoyancy ball is hinged to the hinged rod. Open slots sleeving the outside of the hinged rod are formed on one side of the positioning rod and the buoyancy ball. A fixed retaining ring fixedly connected to the inner wall of the cavity is further provided on one side of the buoyancy ball.

[0020] As a preferred embodiment of the laser pipe cutting machine with multi-segment linkage synchronous operation according to the present invention, wherein: a water adding pipe is fixedly installed on one side of the bottom of the fixed sleeve. A water guiding cavity is formed inside the linkage rod. A water guiding groove opening is formed on one side of the upper surface of the linkage rod. The water guiding groove opening is located on the side of the piston block facing the spring base. A drain hole communicating with the water guiding cavity is formed in the middle of the clamping plate.

[0021] As a preferred embodiment of the laser pipe cutting machine with multi-segment linkage synchronous operation according to the present invention, wherein: the actuating mechanism includes an extrusion head, a limiting plate, a return spring, a transmission rod and a docking head. The extrusion head slidably penetrates through the bottom of the support plate. The limiting plate is fixedly connected to the bottom end of the extrusion head. The limiting plate is slidably arranged inside the support rod. The return spring is fixedly connected to the lower surface of the limiting plate. The bottom end of the return spring is fixedly connected to the bottom end inside the support rod. The transmission rod is fixedly connected to the lower surface of the limiting plate. The transmission rod penetrates through the support rod and extends into the inside of the sliding plate. The docking head is fixedly connected to the bottom end of the transmission rod. Connecting leads are arranged on both sides of the docking head. The two connecting leads are respectively electrically connected to the laser cutting head and an external power supply.

[0022] As a preferred embodiment of the laser pipe cutting machine with multi-segment linkage synchronous operation according to the present invention, wherein: docking grooves are formed on both sides of the bottom of the docking head. Connecting electrodes are fixedly connected to the opposite ends of the two connecting leads. Conductive contacts corresponding to the connecting electrodes are fixedly embedded inside the two docking grooves.

[0023] The technical effects achieved by the present invention are:

[0024] The present invention adopts the design of the clamping assembly. The clamping assembly can limit the steel pipe from above the axis of the steel pipe, and the clamping assembly is located on both sides of the laser cutting head. Therefore, when the steel pipe is undergoing cutting operations, the laser particles emitted by the laser cutting head will not affect the clamping assembly.

[0025] The present invention adopts the design of a positioning component. The positioning component can limit the piston block under the action of cooling water, and at the same time, it also limits the position of the linkage rod inside the fixed sleeve. Furthermore, the clamping plate will not move relative to the fixed sleeve, so that the clamping plate can stably fit on the outer surface of the steel pipe, and thus the steel pipe will not shake during the cutting process;

[0026] The present invention adopts the design of an actuator. The actuator can operate autonomously under the gravity of the steel pipe to connect the electromagnetic body and the laser cutting head to the external power supply electrically. Compared with the pressure sensor, the actuator is more sensitive and can connect the circuit autonomously without waiting for the signal transmission and processing;

[0027] The present invention adopts the design of an inclined notch and a water guide notch. The inclined notch can ensure that the cooling water enters the cavity from bottom to top. Furthermore, when the supply of cooling water stops, the cooling water can be maximally discharged from the cavity, so that the external force on the buoyancy ball disappears, facilitating the reset of the positioning component. The water guide notch is located above the piston block. Therefore, only after the cavity is filled with water can the external cooling water enter the water guide cavity through the water guide notch. Thus, before the cooling water flows out, the position of the clamping component can be fixed in advance. Brief Description of the Drawings

[0028] Figure 1 is a schematic diagram of the overall device provided by Embodiment 1 of the present invention;

[0029] Figure 2 is a front view schematic diagram of the connection between the electric push rod and the sliding plate provided by Embodiment 1 of the present invention;

[0030] Figure 3 is a side view schematic diagram inside the support frame provided by Embodiment 1 and Embodiment 2 of the present invention;

[0031] Figure 4 is a cross-sectional view schematic diagram of the clamping component provided by Embodiment 1 and Embodiment 2 of the present invention;

[0032] Figure 5 is a cross-sectional view schematic diagram of the actuator provided by Embodiment 1 and Embodiment 2 of the present invention;

[0033] Figure 6 is a schematic diagram of the connection between the connecting electrode and the docking head provided by Embodiment 1 and Embodiment 2 of the present invention;

[0034] Figure 7 is a schematic diagram of the connection between the piston block and the linkage rod provided by Embodiment 3 of the present invention;

[0035] Figure 8 is a schematic diagram of the piston block provided by Embodiment 3 of the present invention;

[0036] Figure 9 It is a schematic cross-sectional view of the interior of the cavity provided by Embodiment 3 of the present invention;

[0037] Figure 10 It is a schematic diagram of the positioning component provided by Embodiment 3 of the present invention.

[0038] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0039] 1. Fixing frame; 101. Reference plate; 102. Fixing plate; 103. Chute; 2. Support frame; 201. Connecting plate; 202. Fixed sleeve; 203. Water adding pipe; 3. Laser cutting head; 4. Clamping component; 401. Clamping plate; 402. Linking rod; 4021. Water guiding cavity; 4022. Water guiding groove opening; 403. Linking magnetic plate; 404. Return spring; 4041. Spring base; 5. Support plate; 6. Actuating mechanism; 601. Extrusion head; 602. Limiting plate; 603. Return spring; 604. Transmission rod; 605. Docking head; 6051. Docking groove; 7. Electromagnet; 8. Positioning component; 801. Positioning rod; 802. Hinged rod; 803. Buoyancy ball; 9. Electric push rod; 901. Connecting collar; 10. Slide plate; 11. Support rod; 12. Piston block; 1201. Cavity; 1202. Oblique notch; 1203. Fixed retaining ring; 13. Connecting electrode. Detailed implementation manners

[0040] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the specific protection scope claimed by the present invention.

[0041] Embodiment 1

[0042] As Figure 1-6As shown, this is the first embodiment of the present invention. This embodiment provides a laser pipe cutting machine with multi-segment linkage synchronous operation, including a fixed frame 1, a support frame 2, a laser cutting head 3, a clamping assembly 4, a support plate 5, an actuator 6, an electromagnet 7, and a positioning assembly 8. There are multiple support frames 2, and multiple support frames 2 are all arranged above the fixed frame 1. The number of laser cutting heads 3 is the same as the number of support frames 2, and multiple laser cutting heads 3 are respectively fixedly connected to multiple support frames 2. The clamping assembly 4 is fixedly installed inside the support frame 2. The support plate 5 is arranged inside the fixed frame 1. A steel pipe is placed above the support plate 5. One end of the fixed frame 1 is provided with a reference plate 101. A clamping groove corresponding to the port of the steel pipe is opened on one side of the reference plate 101. And the support plate 5 is located directly below the support frame 2. The support plate 5 is set to be arc-shaped, and the radian inside the support plate 5 is the same as the radian of the outer circle of the steel pipe. The positioning assembly 8 is arranged inside the clamping assembly 4, and the positioning assembly 8 is used to fix the clamping assembly 4. The actuator 6 is arranged below the support plate 5. The actuator 6 is electrically connected to the mains electricity. The actuator 6 is used to electrically connect the laser cutting head 3 with the mains electricity. The electromagnet 7 is magnetically connected to one end of the clamping assembly 4. The pole of the electromagnet 7 opposite to the clamping assembly 4 is the same. And the repulsive force of the electromagnet 7 on the clamping assembly 4 after being energized can ensure the clamping of the steel pipe by the clamping assembly 4, avoiding the displacement of the steel pipe during the cutting process. The electromagnet 7 is connected to the actuator 6 through a wire.

[0043] When the present invention is in use, first place the steel pipe above the support plate 5. After being corrected by the reference plate 101, at this time, the steel pipe will squeeze the top end of the actuator 6. The actuator 6 operates and connects the electrical connection between the laser cutting head 3 and the mains electricity. At the same time, the electromagnet 7 will also be energized to generate magnetism. Subsequently, the clamping assembly 4 is displaced under the repulsive force of the electromagnet 7, and then the clamping assembly 4 gradually approaches the steel pipe. Then the steel pipe is restricted above the support plate 5. Subsequently, the staff can control the laser cutting head 3 to emit laser to melt and cut the part of the steel pipe to be cut through the human-machine interaction device. The human-machine interaction device can select a PLC control system. During this process, it is necessary for the staff to rotate the steel pipe, or it can also be driven by a motor. This is a commonly used technical means for those skilled in the art and will not be elaborated in this text.

[0044] As Figure 2 and Figure 3 As shown, a fixed plate 102 is fixedly installed at the bottom end of the fixed frame 1. An electric push rod 9 is fixedly installed above the fixed plate 102. The electric push rod 9 is electrically connected to an external power supply through a PLC control system. A connecting collar 901 is fixedly sleeved at the output end of the electric push rod 9. A sliding plate 10 is fixedly connected above the connecting collar 901. The sliding plate 10 can slide relative to the fixed frame 1. A support rod 11 is fixedly connected to the top end of the sliding plate 10. The top end of the support rod 11 is fixedly connected to the middle of the lower surface of the support plate 5.

[0045] As Figure 1 and Figure 2 shown, two sets of sliding grooves 103 are formed on both sides of the fixing frame 1, with two in each set. One set of sliding grooves 103 is slidably connected to the sliding plate 10. Linkage baffles are fixedly connected to both ends of the sliding plate 10, and the width of the linkage baffles is greater than the width of the sliding grooves 103. Thus, when the sliding plate 10 slides along the inside of the sliding grooves 103, it will not skew. A connecting plate 201 fixedly connected to the bottom of the support frame 2 is slidably arranged inside the other set of sliding grooves 103, and the bottom end of the connecting plate 201 is fixedly connected to the upper surface of the sliding plate 10.

[0046] According to the above structure, when it is necessary to adjust the distance between two adjacent laser cutting heads 3, the staff first operates the electric push rod 9. The output end of the electric push rod 9 drives the connecting collar 901 to move. The connecting collar 901 drives the sliding plate 10 to move. The sliding plate 10 drives the support rod 11 and the connecting plate 201 to move synchronously. The support rod 11 drives the support plate 5 to move. The connecting plate 201 drives the support frame 2 to move. The support frame 2 drives the laser cutting head 3 to move. Thus, the synchronous movement of the laser cutting head 3 and the support plate 5 can be realized. The electric push rod 9 can be controlled to operate separately through the PLC control system, or multiple electric push rods 9 can be operated synchronously to achieve the purpose of adjusting the distance between the laser cutting heads 3.

[0047] As Figure 3 and Figure 4 shown, a fixed sleeve 202 is fixedly installed inside the support frame 2. The fixed sleeve 202 is fixedly sleeved on the outer surface of the electromagnet 7. The fixed sleeve 202 is slidably sleeved on the outer surface of the clamping assembly 4. The fixed sleeve 202 is inclined relative to the support frame 2, so that the clamping assembly 4 can limit the steel pipe from both sides above, and at the same time, it also avoids the laser emitted by the laser cutting head 3 from affecting the normal operation of the clamping assembly 4.

[0048] Embodiment 2

[0049] Referring to Figure 3-6 , this is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0050] As Figure 3 and Figure 4As shown in the figure, two sets of clamping components 4 are arranged inside each support frame 2. The specifications and components of each set of clamping components 4 are the same. Only one of them will be described as an example below. The clamping component 4 includes a clamping plate 401, a linkage rod 402, a linkage magnetic plate 403, and a return spring 404. The clamping plate 401 is arranged below the fixed sleeve 202. The clamping plate 401 is also arc-shaped and is arranged above the center line of the steel pipe. Thus, when the clamping plate 401 fits on the outer surface of the steel pipe, the steel pipe can rotate inside the clamping plate 401 and the support plate 5, but will not shift up and down. The linkage rod 402 is fixedly connected to one side of the clamping plate 401. The linkage rod 402 slides through the inside of the fixed sleeve 202. The linkage magnetic plate 403 is fixedly connected to the end of the linkage rod 402 located inside the fixed sleeve 202. The linkage magnetic plate 403 is aligned with the electromagnet 7. When the electromagnet 7 is powered on, the opposite ends of the linkage magnetic plate 403 and the electromagnet 7 have the same magnetic poles (both S poles or N poles). Thus, there will be a repulsive force between the electromagnet 7 and the linkage magnetic plate 403. The return spring 404 is fixedly connected to one side of the linkage magnetic plate 403. The elastic force of the return spring 404 is always less than the repulsive force between the electromagnet 7 and the linkage magnetic plate 403. One end of the return spring 404 is fixedly connected to a spring base 4041. The spring base 4041 is fixedly connected to the inner wall of the fixed sleeve 202. A sealing ring is installed on the outer surface of the spring base 4041.

[0051] Specifically, after the electromagnet 7 is powered on, the linkage magnetic plate 403 slides towards the bottom of the fixed sleeve 202 under the influence of the repulsive force. The linkage magnetic plate 403 squeezes the linkage rod 402 to move synchronously. The linkage rod 402 drives the clamping plate 401 to gradually approach the steel pipe. At the same time, when the linkage magnetic plate 403 moves, it will also squeeze the return spring 404. The return spring 404 contracts and stores energy. After the electromagnet 7 is powered off subsequently, the repulsive force received by the linkage magnetic plate 403 disappears. At this time, the return spring 404 can drive the linkage magnetic plate 403 to reset. Thus, the linkage rod 402 and the clamping plate 401 will also reset accordingly. At this time, it is convenient for the staff to remove the cut steel pipe.

[0052] Such as Figure 5 and Figure 6As shown, the actuator 6 includes an extrusion head 601, a limit plate 602, a return spring 603, a transmission rod 604, and a docking head 605. The extrusion head 601 slides through the bottom of the support plate 5. The extrusion head 601 can be set as a spherical shape, and the part of the extrusion head 601 protruding from the support plate 5 occupies a range not greater than one-third of the spherical volume, so that there will be no excessive resistance when the staff places the steel pipe. The limit plate 602 is fixedly connected to the bottom end of the extrusion head 601. The limit plate 602 is slidably arranged inside the support rod 11. The return spring 603 is fixedly connected to the lower surface of the limit plate 602. The bottom end of the return spring 603 is fixedly connected to the bottom end inside the support rod 11. The transmission rod 604 is fixedly connected to the lower surface of the limit plate 602. The transmission rod 604 penetrates the support rod 11 and extends into the inside of the slide plate 10. The docking head 605 is fixedly connected to the bottom end of the transmission rod 604. Both the docking head 605 and the transmission rod 604 are made of insulating materials. Connecting leads are arranged on both sides of the docking head 605. The two connecting leads are electrically connected to the laser cutting head 3 and an external power source respectively.

[0053] Furthermore, docking grooves 6051 are formed on both sides of the bottom of the docking head 605. Connecting electrodes 13 are fixedly connected to the opposite ends of the two connecting leads. Conductive contacts corresponding to the connecting electrodes 13 are fixedly embedded inside the two docking grooves 6051. The conductive contacts can be made of conductive materials such as copper sheets. After the connecting electrode 13 contacts the conductive contact, the circuit between the two connecting leads will be connected at this time. Furthermore, the laser cutting head 3 is electrically connected to the external power source through the connecting leads.

[0054] According to the above structure, after the steel pipe is placed above the support plate 5, the steel pipe will apply an extrusion force to the extrusion head 601. Subsequently, the extrusion head 601 drives the limit plate 602 to move downward along the inside of the support rod 11. The limit plate 602 drives the transmission rod 604 to descend. The transmission rod 604 drives the docking head 605 to descend. The docking head 605 drives the docking groove 6051 to be inserted onto the outer surface of the connecting electrode 13. At this time, the connecting electrode 13 can be electrically connected to the conductive contact, so that the circuit between the two connecting leads is also connected.

[0055] Embodiment 3

[0056] Refer to Figure 7-10 , which is the third embodiment of the present invention. This embodiment is based on the first two embodiments.

[0057] As Figure 7 、 Figure 8 and Figure 9As shown, a piston block 12 is slidably sleeved inside a fixed sleeve 202. Sealing rings are installed on both sides of the piston block 12. The piston block 12 is fixedly sleeved on the outer surface of a linkage rod 402. A cavity 1201 is formed inside the piston block 12. The cavity 1201 is designed in a ring shape and is arranged outside a positioning assembly 8. An inclined notch 1202 communicating with the cavity 1201 is formed at the bottom of the piston block 12, and the opening of the inclined notch 1202 faces downward.

[0058] As Figure 9 and Figure 10 shown, the positioning assembly 8 includes a positioning rod 801, a hinge rod 802, and a buoyancy ball 803. The positioning rod 801 slidably penetrates through the middle of the piston block 12. A positioning groove corresponding to the positioning rod 801 is formed inside the fixed sleeve 202. After the positioning rod 801 is inserted into the positioning groove, the piston block 12 is hinged to the bottom of the positioning rod 801 through the hinge rod 802. The buoyancy ball 803 is slidably sleeved inside the cavity 1201. One side of the buoyancy ball 803 is hinged to the hinge rod 802. The density of the buoyancy ball 803 is less than that of water. Therefore, when water flow is filled inside the cavity 1201, the buoyancy ball 803 is not only affected by the buoyancy of water but also by the extrusion force of the water flow, thereby enhancing the smoothness of the movement of the buoyancy ball 803. Open slots for sleeving the outside of the hinge rod 802 are formed on one side of both the positioning rod 801 and the buoyancy ball 803. The open slots provide a moving space for the hinge rod 802. A fixed retaining ring 1203 fixedly connected to the inner wall of the cavity 1201 is also arranged on one side of the buoyancy ball 803. The fixed retaining ring 1203 is used to limit the buoyancy ball 803 to prevent the buoyancy ball 803 from pulling the positioning rod 801 into the cavity 1201 through the hinge rod 802.

[0059] Furthermore, a water inlet pipe 203 is fixedly installed on one side of the bottom of the fixed sleeve 202. The water inlet pipe 203 can be connected to an external cooling water source through a water pump. A water guide cavity 4021 is formed inside the linkage rod 402. A water guide notch 4022 is formed on one side of the upper surface of the linkage rod 402. The water guide notch 4022 is located on the side of the piston block 12 facing the spring base 4041. A drain hole communicating with the water guide cavity 4021 is formed in the middle of the clamping plate 401.

[0060] It should be noted that since the water guide groove opening 4022 is located above the piston block 12, after flowing into the interior of the water guide cavity 4021 through the water adding pipe 203, it will first flow into the interior of the cavity 1201 through the inclined notch 1202. Subsequently, the water flow will squeeze the buoyancy ball 803, and the buoyancy ball 803 drives the hinge rod 802 to move upward. The hinge rod 802 drives the positioning rod 801 to gradually engage into the positioning groove, so that the piston block 12 can be fixed inside the fixed sleeve 202. Furthermore, the linkage rod 402 will also be fixed inside the fixed sleeve 202, so that the clamping plate 401 stably fits on the outer surface of the steel pipe, and thus the steel pipe will not drive the clamping plate 401 to shake while rotating.

[0061] It should be further noted that after the cooling water enters the interior of the water guide cavity 4021 through the water guide groove opening 4022, the cooling water will flow out from the drain hole to the outer surface of the steel pipe, so that the high temperature at the laser-fused part of the steel pipe can be quickly dissipated. Moreover, the cooling water can also reduce the temperature inside the fixed sleeve 202, thus preventing the phenomenon that the electromagnet 7 weakens its magnetism due to excessive working temperature.

[0062] The working principle of the present invention is as follows: First, the staff places the steel pipe above the support plate 5. After calibration by the reference plate 101, at this time, the steel pipe will squeeze the top of the actuator 6. The actuator 6 operates and connects the electrical connection between the laser cutting head 3 and the mains electricity. At the same time, the electromagnet 7 will also be energized to generate magnetism. Subsequently, the clamping assembly 4 displaces under the repulsive force of the electromagnet 7, and then the clamping assembly 4 gradually approaches the steel pipe. Thus, the steel pipe is restricted above the support plate 5. Then, the staff can control the laser cutting head 3 to emit laser to melt the cutting part of the steel pipe through the human-computer interaction device. And during the cutting process, there is a supply of cooling water at the joint between the clamping plate 401 and the steel pipe, so that the high temperature at the cutting part of the steel pipe can be quickly dissipated.

[0063] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special explanation and limitation.

Claims

1. A laser pipe cutting machine with multi-segment linkage synchronous operation, characterized in that: Including: A fixing frame (1), above which there are a plurality of support frames (2), and a laser cutting head (3) is fixedly installed inside the support frame (2); The bottom end of the fixing frame (1) is fixedly installed with a fixing plate (102), and an electric push rod (9) is fixedly installed above the fixing plate (102); A clamping assembly (4), which is fixedly installed inside the support frame (2); A fixed sleeve (202) is fixedly installed inside the support frame (2), and the fixed sleeve (202) is slidably sleeved on the outer surface of the clamping assembly (4); A support plate (5), which is arranged inside the fixing frame (1), a steel pipe is placed above the support plate (5), and the support plate (5) is located directly below the support frame (2); A positioning assembly (8), which is arranged inside the clamping assembly (4), the positioning assembly (8) includes a positioning rod (801), a hinged rod (802) and a buoyancy ball (803), a positioning groove corresponding to the positioning rod (801) is opened inside the fixed sleeve (202), a water adding pipe (203) is fixedly installed on one side of the bottom of the fixed sleeve (202), a piston block (12) is slidably sleeved inside the fixed sleeve (202), a cavity (1201) is opened inside the piston block (12), an inclined notch (1202) communicating with the cavity (1201) is opened at the bottom of the piston block (12), the cavity (1201) is arranged outside the positioning assembly (8), and the positioning rod (801) slidably penetrates through the middle of the piston block (12); The hinged rod (802) is hinged to the bottom of the positioning rod (801), opening grooves for sleeving the outer side of the hinged rod (802) are opened on one side of the positioning rod (801) and the buoyancy ball (803), one side of the buoyancy ball (803) is hinged to the hinged rod (802), and the buoyancy ball (803) is slidably sleeved inside the cavity (1201); The buoyancy ball (803) drives the hinged rod (802) through the cooling water pressure to trigger the positioning rod (801) to insert into the positioning groove of the fixed sleeve (202); An actuator (6), which is arranged below the support plate (5), and the actuator (6) is electrically connected to the mains; An electromagnet (7), which is magnetically connected to one end of the clamping assembly (4), the poles of the electromagnet (7) and the end opposite to the clamping assembly (4) are the same, and the electromagnet (7) is connected to the actuator (6) through a wire; Wherein, a reference plate (101) is arranged at one end of the fixing frame (1). After the steel pipe is placed above the support plate (5), the actuator (6) is electrically connected to the mains, the electromagnet (7) is energized to generate magnetism and drives the clamping assembly (4) to shift, and the clamping assembly (4) gradually approaches the steel pipe.

2. A laser pipe cutting machine with multi - segment linkage synchronous operation according to claim 1, characterized in that: The output end of the electric push rod (9) is fixedly sleeved with a connecting collar (901). Above the connecting collar (901), a sliding plate (10) is fixedly connected. At the top of the sliding plate (10), a support rod (11) is fixedly connected. The top of the support rod (11) is fixedly connected to the middle of the lower surface of the support plate (5).

3. The laser tube cutting machine with multi-segment linkage synchronous operation according to claim 2, wherein: On both sides of the fixed frame (1), two groups of sliding grooves (103) are provided. One group of the sliding grooves (103) is slidably connected to the sliding plate (10). Inside the other group of the sliding grooves (103), a connecting plate (201) fixedly connected to the bottom of the support frame (2) is slidably arranged, and the bottom end of the connecting plate (201) is fixedly connected to the upper surface of the sliding plate (10).

4. A laser pipe cutting machine with multi-segment linkage synchronous operation according to claim 1, characterized in that: The fixed sleeve (202) is fixedly sleeved on the outer surface of the electromagnet (7).

5. A laser pipe cutting machine with multi-segment linkage synchronous operation according to claim 1, characterized in that: The clamping assembly (4) includes a clamping plate (401), a linkage rod (402), a linkage magnetic plate (403), and a return spring (404). The clamping plate (401) is arranged below the fixed sleeve (202). The linkage rod (402) is fixedly connected to one side of the clamping plate (401). The linkage rod (402) slidably penetrates inside the fixed sleeve (202). The linkage magnetic plate (403) is fixedly connected to the end of the linkage rod (402) located inside the fixed sleeve (202). The return spring (404) is fixedly connected to one side of the linkage magnetic plate (403). One end of the return spring (404) is fixedly connected to a spring base (4041), and the spring base (4041) is fixedly connected to the inner wall of the fixed sleeve (202).

6. The laser tube cutting machine with multi-segment linkage synchronous operation according to claim 5, characterized in that: The piston block (12) is fixedly sleeved on the outer surface of the linkage rod (402). On one side of the buoyancy ball (803), a fixed retaining ring (1203) fixedly connected to the inner wall of the cavity (1201) is also provided.

7. A laser pipe cutting machine with multi-segment linkage synchronous operation according to claim 5, characterized in that: A water guide cavity (4021) is formed inside the linkage rod (402). On one side of the upper surface of the linkage rod (402), a water guide groove opening (4022) is provided. The water guide groove opening (4022) is located on the side of the piston block (12) facing the spring base (4041). A drain hole communicating with the water guide cavity (4021) is formed in the middle of the clamping plate (401).

8. A laser tube cutting machine with multi-segment linkage synchronous operation according to claim 2, characterized in that: The actuator (6) includes an extrusion head (601), a limiting plate (602), a return spring (603), a transmission rod (604) and a docking head (605). The extrusion head (601) slidably penetrates through the bottom of the support plate (5). The limiting plate (602) is fixedly connected to the bottom end of the extrusion head (601). The limiting plate (602) is slidably disposed inside the support rod (11). The return spring (603) is fixedly connected to the lower surface of the limiting plate (602). The bottom end of the return spring (603) is fixedly connected to the bottom end inside the support rod (11). The transmission rod (604) is fixedly connected to the lower surface of the limiting plate (602). The transmission rod (604) penetrates through the support rod (11) and extends into the inside of the slide plate (10). The docking head (605) is fixedly connected to the bottom end of the transmission rod (604). Connecting leads are disposed on both sides of the docking head (605). The two connecting leads are electrically connected to the laser cutting head (3) and an external power source respectively.

9. A laser pipe cutting machine with multi-segment linkage synchronous operation according to claim 8, characterized in that: Docking grooves (6051) are formed on both sides of the bottom of the docking head (605). Connecting electrodes (13) are fixedly connected to the opposite ends of the two connecting leads. Conductive contacts corresponding to the connecting electrodes (13) are fixedly embedded inside the two docking grooves (6051).

Images