A split-type cutting machine and a cutting method

Abstract

The present invention belongs to the technical field of laser cutting machines, and specifically relates to a split-type cutting machine and a cutting method. It includes a frame shell and a round tube. Inside the frame shell, a bed frame, guide rods, and a workbench are installed. A clamping connection assembly and a cutting assembly are respectively installed on the workbench, and a positioning and correction assembly is slidably installed on the clamping connection assembly and the cutting assembly. Under the action of the feeding device, the round tube of the present invention sequentially passes through the clamping disc and the cutting disc and drives the pull rod to move synchronously. The pull rod drives the clamping disc to move through the connecting head, and the clamping connection assembly is connected to the round tube through the clamping head. Therefore, the round tube and the cutting assembly move synchronously, improving the cutting accuracy of the laser; under the clamping of the clamping head, the round tube between the end of the pull rod and the clamping head is fixed, and the laser can cut the round tube completely, avoiding the phenomenon that large burrs are generated at the cutting port of the round tube due to the breakage of the round tube under its own gravity during the cutting process of the laser.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting machines, and in particular relates to a split type cutting machine and a cutting method. Background Art

[0002] The workbench and bed of the split cutting machine are set separately to reduce the heat transfer from the workbench to the bed, thereby improving the cutting accuracy. With the development of modern mechanical processing industry, the requirements for cutting quality and precision are constantly improving, and the requirements for improving production efficiency, reducing production costs, and having highly intelligent automatic cutting functions are also increasing. Split cutting machines are divided into flame cutting machines, plasma cutting machines, laser cutting machines, water cutting machines, etc. Among them, laser cutting machines have the fastest efficiency, the highest cutting accuracy, and generally smaller cutting thickness.

[0003] The laser cutting machines of the prior art have the following problems: First, in some existing laser cutting machines, the workpiece generally remains stationary when the cutting device is cutting the workpiece, so the processing efficiency is low; in order to improve the processing efficiency, some cutting machines design the workpiece and the cutting device to move synchronously, and cut while moving, but the movement of the workpiece and the movement of the cutting device are controlled separately and independently of each other, so there is a problem of asynchronous movement, resulting in fine wavy cuts and poor cutting accuracy; second, when the laser cutting machine cuts round tube materials, the laser cutting machine needs to cut the round tube in a ring. When the laser cutting machine has not completely cut the round tube, the round tube material at the cutting position will break due to its own gravity, resulting in large burrs on the cut surface of the material, affecting the quality of the material. At the same time, the broken round tube material can easily damage the laser cutting machine during the ring cutting process, causing damage to the laser cutting machine. Summary of the invention

[0004] The purpose of the present invention is to provide a split cutting machine and a cutting method to solve the technical problems in the prior art in view of the deficiencies in the prior art.

[0005] The purpose of the present invention can be achieved by the following technical scheme: a split cutting machine, which includes a frame shell and a round tube, a bed frame is installed inside the frame shell, a guide rod is installed on the bed frame, the guide rod is connected to the workbench by transmission, a clamping connection component and a cutting component are respectively installed on the workbench, the clamping connection component is slidably installed on the workbench, the cutting component is fixedly installed on the workbench, a positioning correction component is slidably installed on the clamping connection component and the cutting component, and the round tube is inserted into the clamping connection component and the cutting component in sequence;

[0006] The cutting assembly includes a cutting disc and an adjustable laser installed on the cutting disc. The clamping and connecting assembly includes a clamping disc and a turntable rotatably installed inside the clamping disc. A vertical groove is formed inside the turntable, a connecting rod is rotatably installed in the vertical groove, a clamping head is rotatably connected to the connecting rod, the clamping head fits against the outer wall of the circular tube, the turntable is driven by a driving motor, and a return spring is connected between the clamping disc and the cutting disc;

[0007] The positioning and correction assembly includes a pull rod and a connecting head. The pull rod is slidably connected to the clamping disc and the cutting disc respectively. One end of the pull rod is installed with the connecting head, the connecting head is connected to the clamping disc, and the other end of the pull rod is abutted after the circular tube is inserted into the clamping and connecting assembly and the cutting assembly.

[0008] As a further optimization or improvement of this solution, a driving motor is installed on the clamping disc, the output end of the driving motor is connected with a gear, a toothed ring is installed on the turntable, the gear meshes with the toothed ring, a ring groove is formed inside the clamping disc, a ring-shaped sliding head is installed on the turntable, and the ring-shaped sliding head is slidably installed inside the ring groove.

[0009] As a further optimization or improvement of this solution, a telescopic pressure rod is installed on the vertical groove, and the end of the telescopic pressure rod is connected to the connecting rod.

[0010] As a further optimization or improvement of this solution, a sliding table is installed on the workbench, a sliding groove is formed on the sliding table, a slider is slidably installed inside the sliding groove, an electromagnetic chuck one and an electromagnetic chuck two are installed at both ends of the slider respectively, and a fixing head is slidably installed inside the slider. The clamping disc is fixedly installed on the fixing head.

[0011] As a further optimization or improvement of this solution, a vertical slide rail is installed on the cutting disc, a horizontal slide rail is slidably installed on the vertical slide rail, a laser is slidably installed on the horizontal slide rail, the horizontal slide rail on the vertical slide rail is driven by a vertical motor, and the laser on the horizontal slide rail is driven by a horizontal motor.

[0012] As a further optimization or improvement of this solution, a fixing table is installed on the workbench, the cutting disc is fixedly installed on the fixing table, a retaining sleeve is installed on the workbench, the clamping and connecting assembly and the cutting assembly are installed inside the retaining sleeve, and a blanking assembly is installed on the frame shell.

[0013] As a further optimization or improvement of this solution, the blanking assembly includes a support table, an arc plate is installed on the support table, a rotating rod is rotatably installed on the arc plate, a cylinder is installed on the support table, and the output end of the cylinder is connected to the rotating rod.

[0014] As a further optimization or improvement of this solution, the positioning and correction component further includes an L-shaped rod. An installation groove is opened on the pull rod, and the L-shaped rod is rotatably installed inside the installation groove. One end of the L-shaped rod is connected to a pressing block, and the pressing block fits against the outer side wall of the round tube. The other end of the L-shaped rod is installed with a connecting block, and the connecting block is connected to a pushing block through a push rod. The end of the round tube abuts against the pushing block, and a compression spring is installed on the pushing block.

[0015] A cutting method for a split-type cutting machine, which is applied to the split-type cutting machine as described above. The method includes the following steps:

[0016] Step S1: Pass the round tube through the clamping disc and the cutting disc in sequence. After the round tube passes through the cutting disc, it contacts the end of the pull rod. As the round tube moves, the round tube drives the pull rod to move synchronously, and the pull rod drives the clamping disc to move through the connecting head;

[0017] Step S2: During the sliding of the clamping disc, the connecting rod inside the clamping disc rotates inward. As the connecting rod rotates, the clamping head on the connecting rod presses and clamps the outer side wall of the round tube, so that the clamping and connecting component is connected to the round tube;

[0018] Step S3: Under the clamping of the clamping head, the round tube between the end of the pull rod and the clamping head is fixed. When the clamping head clamps the round tube, the round tube, the clamping and connecting component, the cutting component and the workbench form a whole.

[0019] As a further optimization or improvement of this solution, step S1 specifically includes the following steps:

[0020] Step S11: After the round tube passes through the cutting disc, it contacts and presses the pushing block. The pushing block drives the L-shaped rod to rotate through the push rod and the connecting block, and the L-shaped rod presses the outer side wall of the end of the round tube through the pressing block;

[0021] Step S12: By pressing the side wall of the end of the round tube with the pressing block, the inclination angle of the end of the round tube is corrected by the pressing block, so that the distance between the laser and the round tube is constant.

[0022] The beneficial effects of the present invention:

[0023] (1) When in use, the round tube passes through the clamping disc and the cutting disc in sequence under the action of the feeding device. Then the round tube drives the pull rod to move synchronously, and the pull rod drives the clamping disc to move through the connecting head. The movement of the clamping disc drives the clamping head on the connecting rod to press and clamp the outer side wall of the round tube, so that the clamping and connecting component is connected to the round tube; Under the clamping of the clamping head, the round tube between the end of the pull rod and the clamping head is fixed. Since the laser is located between the end of the pull rod and the clamping head, during the process of the laser cutting the round tube, the laser can cut the round tube completely, avoiding the phenomenon that large burrs are generated at the cutting port of the round tube due to the breakage of the round tube itself under its own gravity during the cutting process by the laser, and at the same time avoiding the falling of the round tube cutting piece and damaging the laser;

[0024] Specifically, when the clamping head clamps the circular tube, the circular tube, the clamping connection assembly, the cutting assembly, and the workbench form an integral whole. Therefore, the circular tube and the cutting assembly move synchronously, improving the cutting accuracy of the laser.

[0025] (2) Adjust the laser to a suitable position through the vertical slide rail and the horizontal slide rail. Start the drive motor to drive the turntable to rotate. The turntable drives the circular tube to rotate through the connecting rod. At the same time, cooperate with the laser to cut the circular tube circumferentially. In the present invention, the circular tube rotates by itself to cooperate with the laser for circumferential cutting, avoiding the problem of interference of the laser wire harness and simplifying the layout of the laser.

[0026] (3) Press the circular tube against the push block, so that the push block drives the L-shaped rod to rotate through the push rod and the connecting block. The L-shaped rod presses the outer wall of the end of the circular tube through the pressing block, correcting the inclination angle of the end of the circular tube, making the distance between the laser and the circular tube constant, and ensuring that the laser can cut the circular tube evenly. Brief Description of the Drawings

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the structure of the clamping connection assembly and the cutting assembly.

[0030] Figure 3 It is a schematic diagram of the structure of the bed frame.

[0031] Figure 4 It is an exploded view of the overall structure of the clamping connection assembly.

[0032] Figure 5 It is a cross-sectional view of the internal structure of the clamping disc.

[0033] Figure 6 It is for Figure 5 The enlarged view of the structure of part A.

[0034] Figure 7 It is a schematic diagram of the internal structure of the slider.

[0035] Figure 8 It is a schematic diagram of the overall structure of the cutting assembly.

[0036] Figure 9 It is a mating diagram of the pull rod and the circular tube.

[0037] Figure 10 It is a connection schematic diagram of the pull rod and the circular tube.

[0038] Figure 11 It is for Figure 10 The enlarged view of the structure of part B.

[0039] Figure 12It is a schematic diagram of the overall structure of the blanking component.

[0040] The labels in the figure are: 1. Frame shell; 2. Bed frame; 3. Guide rod; 4. Workbench; 5. Positioning and correcting component; 501. Pull rod; 502. Connector; 503. Placement groove; 504. L-shaped rod; 505. Pressing block; 506. Connecting block; 507. Pushing block; 508. Push rod; 509. Compression spring; 6. Blanking component; 601. Support platform; 602. Arc-shaped plate; 603. Rotating rod; 604. Cylinder; 7. Round tube; 8. Clamping and connecting component; 801. Clamping disc; 802. Slide table; 803. Ring groove; 804. Driving motor; 805. Gear; 806. Turntable; 807. Ring-shaped sliding head; 808. Tooth ring; 809. Slide block; 810. Fixed head; 811. Electromagnetic chuck one; 812. Electromagnetic chuck two; 813. Slide groove; 814. Clamping head; 815. Connecting rod; 816. Vertical groove; 817. Telescopic pressure rod; 9. Cutting component; 901. Cutting disc; 902. Vertical slide rail; 903. Vertical motor; 904. Horizontal slide rail; 905. Laser; 906. Horizontal motor; 907. Fixed platform; 11. Return spring; 12. Bushing. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0042] See Figures 1 - 10 , a split-type cutting machine, which includes a frame shell 1 and a round tube 7. A bed frame 2 is installed inside the frame shell 1. A guide rod 3 is installed on the bed frame 2. The guide rod 3 is in transmission connection with a workbench 4. A clamping and connecting component 8 and a cutting component 9 are respectively installed on the workbench 4. The clamping and connecting component 8 is slidably installed on the workbench 4, and the cutting component 9 is fixedly installed on the workbench 4. A positioning and correcting component 5 is slidably installed on the clamping and connecting component 8 and the cutting component 9. The round tube 7 is sequentially inserted into the clamping and connecting component 8 and the cutting component 9;

[0043] The cutting component 9 includes a cutting disc 901 and an adjustable laser 905 installed on the cutting disc 901. The clamping and connecting component 8 includes a clamping disc 801 and a turntable 806 rotatably installed inside the clamping disc 801. A vertical groove 816 is opened inside the turntable 806. A connecting rod 815 is rotatably installed in the vertical groove 816. A clamping head 814 is rotatably connected to the connecting rod 815. The clamping head 814 fits against the outer wall of the round tube 7. The turntable 806 is driven by a driving motor 804. A return spring 11 is connected between the clamping disc 801 and the cutting disc 901;

[0044] The positioning and correcting assembly 5 includes a pull rod 501 and a connector 502. The pull rod 501 is slidably connected to the clamping disc 801 and the cutting disc 901 respectively. One end of the pull rod 501 is installed with the connector 502, and the connector 502 is connected to the clamping disc 801. After the circular tube 7 is inserted into the clamping and connecting assembly 8 and the cutting assembly 9, the other end of the pull rod 501 is abutted.

[0045] It should be noted that the circular tube 7 is connected to the feeding device, so that the circular tube 7 enters the clamping and connecting assembly 8 and the cutting assembly 9 in turn under the action of the feeding equipment; a driving device is installed at the bottom of the workbench 4. After the cutting assembly 9 completes the cutting, the workbench 4 quickly conveys the clamping and connecting assembly 8 and the cutting assembly 9 thereon to the initial position, so that the clamping and connecting assembly 8 and the cutting assembly 9 can operate continuously.

[0046] The circular tube 7 passes through the clamping disc 801 and the cutting disc 901 in turn under the action of the feeding equipment. At the same time, the clamping head 814 fits on the outer side wall of the circular tube 7. After the circular tube 7 passes through the cutting disc 901, it contacts the end of the pull rod 501. As the circular tube 7 moves, the circular tube 7 drives the pull rod 501 to move synchronously. During this process, the pull rod 501 drives the clamping disc 801 to move through the connector 502, so that the clamping disc 801 slides along the chute 813 on the sliding table 802. During the sliding of the clamping disc 801, since the clamping head 814 fits on the outer side wall of the circular tube 7, the connecting rod 815 inside the clamping disc 801 rotates inward, as Figure 6 shown. As the connecting rod 815 rotates, the clamping head 814 on the connecting rod 815 presses and clamps the outer side wall of the circular tube 7, so that the clamping and connecting assembly 8 is connected to the circular tube 7. Under the clamping of the clamping head 814, the circular tube 7 between the end of the pull rod 501 and the clamping head 814 is fixed. See Figure 9 . Since the laser 905 is located between the end of the pull rod 501 and the clamping head 814, during the process of the laser 905 cutting the circular tube 7, the laser 905 can completely cut the circular tube 7, avoiding the phenomenon that large burrs are generated at the cutting port of the circular tube 7 due to the breakage of the circular tube 7 caused by its own gravity during the cutting process of the laser 905;

[0047] When the clamping head 814 clamps the circular tube 7, the circular tube 7, the clamping and connecting assembly 8, the cutting assembly 9 and the workbench 4 form a whole. Therefore, the circular tube 7 and the cutting assembly 9 move synchronously, improving the cutting accuracy of the laser 905.

[0048] It should be noted that the bed frame 2 and the workbench 4 in the present invention are arranged in a split manner. The bed frame 2 is a hollow structure, and the guide rod 3 and the workbench 4 are installed in the middle of the bed frame 2, so that the workbench 4 and the bed frame 2 can be separately arranged.

[0049] See Figures 5 - 6, a driving motor 804 is installed on the clamping disc 801, the output end of the driving motor 804 is connected to a gear 805, a toothed ring 808 is installed on the turntable 806, the gear 805 meshes with the toothed ring 808, a ring groove 803 is formed inside the clamping disc 801, a ring-shaped sliding head 807 is installed on the turntable 806, and the ring-shaped sliding head 807 is slidably installed inside the ring groove 803.

[0050] It should be noted that by starting the driving motor 804 to drive the gear 805 to rotate, through the meshing of the gear 805 and the toothed ring 808, the driving motor 804 drives the turntable 806 and the circular tube 7 fixed on the turntable 806 to rotate.

[0051] See Figure 6 , a telescopic pressure rod 817 is installed on the vertical groove 816, and the end of the telescopic pressure rod 817 is connected to a connecting rod 815.

[0052] It should be noted that the telescopic pressure rod 817 can support the connecting rod 815, so that the clamping head 814 on the connecting rod 815 is fixed at a specified position, and at the same time, the telescopic pressure rod 817 can reset the connecting rod 815.

[0053] See Figure 4 and Figure 7 , a sliding table 802 is installed on the workbench 4, a chute 813 is formed on the sliding table 802, a slider 809 is slidably installed inside the chute 813, an electromagnetic chuck one 811 and an electromagnetic chuck two 812 are respectively installed at both ends of the slider 809, a fixed head 810 is slidably installed inside the slider 809, and the clamping disc 801 is fixedly installed on the fixed head 810.

[0054] It should be noted that in the initial state, the electromagnetic chuck one 811 is started, the electromagnetic chuck two 812 is closed, and the electromagnetic chuck one 811 connects the fixed head 810 and the clamping disc 801 thereon; when the laser 905 completely cuts the circular tube 7, the electromagnetic chuck one 811 is closed, the electromagnetic chuck two 812 is started, at this time the electromagnetic chuck two 812 connects the fixed head 810, and then drives the fixed head 810 to shift inside the slider 809. During this process, the clamping disc 801 on the fixed head 810 drives the pull rod 501 to shift, so that the push block 507 and the pressing block 505 are separated from the circular tube 7, and the blanking work of the circular tube 7 is completed.

[0055] A grinding sheet or a ball can be installed on the push block 507 and the pressing block 505. If it is necessary to grind the burrs at the end of the circular tube 7, a grinding sheet needs to be installed on the push block 507 and the pressing block 505. Since the pull rod 501 is fixed when the turntable 806 drives the circular tube 7 to rotate, the burrs at the end of the circular tube 7 are ground by the grinding sheets on the push block 507 and the pressing block 505;

[0056] If the end of the circular tube 7 is cut smoothly, there is no need to polish the burrs at the end of the circular tube 7, that is, balls are installed on the pushing block 507 and the pressing block 505.

[0057] See Figure 8 and Figure 12 On the workbench 4, a fixed table 907 is installed, and a cutting disc 901 is fixedly installed on the fixed table 907. A retaining sleeve 12 is installed on the workbench 4, and a clamping connection assembly 8 and a cutting assembly 9 are installed inside the retaining sleeve 12. A blanking assembly 6 is installed on the frame shell 1.

[0058] Specifically, the blanking assembly 6 includes a support table 601, an arc plate 602 is installed on the support table 601, a rotating rod 603 is rotatably installed on the arc plate 602, a cylinder 604 is installed on the support table 601, and the output end of the cylinder 604 is connected to the rotating rod 603.

[0059] It should be noted that when the laser 905 works relatively fast, the blanking speed of the circular tube 7 also needs to match that of the laser 905, that is, the inclination angle of the rotating rod 603 away from the end of the arc plate 602 is adjusted through the cylinder 604, so as to control the blanking speed of the circular tube 7.

[0060] See Figures 10 - 11 The positioning and correction assembly 5 further includes an L-shaped rod 504. An installation groove 503 is formed on the pull rod 501, and the L-shaped rod 504 is rotatably installed inside the installation groove 503. One end of the L-shaped rod 504 is connected to the pressing block 505, and the pressing block 505 fits against the outer wall of the circular tube 7. The other end of the L-shaped rod 504 is installed with a connecting block 506, and the connecting block 506 is connected to the pushing block 507 through a push rod 508. The end of the circular tube 7 abuts against the pushing block 507, and a compression spring 509 is installed on the pushing block 507.

[0061] Specifically, a vertical slide rail 902 is installed on the cutting disc 901, a horizontal slide rail 904 is slidably installed on the vertical slide rail 902, and a laser 905 is slidably installed on the horizontal slide rail 904. The horizontal slide rail 904 on the vertical slide rail 902 is driven by a vertical motor 903, and the laser 905 on the horizontal slide rail 904 is driven by a horizontal motor 906.

[0062] It should be noted that when the laser 905 of the prior art cuts the circular tube 7, the rotation angle of the laser 905 should be slightly greater than 360 degrees. Therefore, it is necessary to consider the problems of the wire harness interference of the laser 905 and the damage of the laser 905 caused by the blanking of the circular tube 7, resulting in extremely cumbersome work for arranging the laser 905;

[0063] Adjust the laser 905 to a suitable position through the vertical slide rail 902 and the horizontal slide rail 904. Start the drive motor 804. The drive motor 804 drives the turntable 806 to rotate through the engagement of the gear 805 and the gear ring 808. The turntable 806 drives the circular tube 7 to rotate through the connecting rod 815. At the same time, cooperate with the laser 905 to cut the circular tube 7 circumferentially. Cut the circular tube 7 circumferentially by the rotation of the circular tube 7 in cooperation with the laser 905, which simplifies the layout of the laser 905.

[0064] In actual use, there are the following problems with the circumferential cutting method of the circular tube 7 in cooperation with the laser 905. If the circular tube 7 is not concentric with the clamping connection assembly 8 and the cutting assembly 9, that is, an inclination angle is generated at the end of the inlet end of the circular tube 7. Even if the clamping head 814 clamps the circular tube 7, it is difficult to effectively correct the end of the circular tube 7. As the turntable 806 drives the circular tube 7 to rotate, the end of the circular tube 7 will move in a circular trajectory, causing the distance between the laser 905 and the circular tube 7 to change dynamically, resulting in uneven cutting of the circular tube 7 by the laser 905.

[0065] See Figure 11 , after the circular tube 7 passes through the cutting disc 901, it contacts and presses the push block 507. The push block 507 drives the L-shaped rod 504 to rotate through the push rod 508 and the connecting block 506. The L-shaped rod 504 presses the outer wall of the end of the circular tube 7 through the pressing block 505 to correct the inclination angle of the end of the circular tube 7, so that the distance between the laser 905 and the circular tube 7 is constant, ensuring that the laser 905 can cut the circular tube 7 evenly.

[0066] See Figures 1 - 10 As shown, the present invention is a cutting method for a split-type cutting machine. The method is applied to the split-type cutting machine as described in the above embodiment. The method includes the following steps:

[0067] Step S1: Pass the circular tube 7 through the clamping disc 801 and the cutting disc 901 in sequence. After the circular tube 7 passes through the cutting disc 901, it contacts the end of the pull rod 501. As the circular tube 7 moves, the circular tube 7 drives the pull rod 501 to move synchronously. The pull rod 501 drives the clamping disc 801 to move through the connecting head 502;

[0068] Step S2: During the sliding of the clamping disc 801, the connecting rod 815 inside the clamping disc 801 rotates inward. As the connecting rod 815 rotates, the clamping head 814 on the connecting rod 815 presses and clamps the outer wall of the circular tube 7, connecting the clamping connection assembly 8 with the circular tube 7;

[0069] Step S3: Under the clamping of the clamping head 814, the circular tube 7 between the end of the pull rod 501 and the clamping head 814 is fixed. When the clamping head 814 clamps the circular tube 7, the circular tube 7, the clamping connection assembly 8, the cutting assembly 9 and the workbench 4 form a whole.

[0070] Such as Figures 9 - 11As shown, as a preferred embodiment of the present invention, step S1 specifically includes the following steps:

[0071] Step S11: The circular tube 7 contacts and presses the push block 507 after passing through the cutting disc 901. The push block 507 drives the L-shaped rod 504 to rotate through the push rod 508 and the connecting block 506, and the L-shaped rod 504 presses the outer side wall of the end of the circular tube 7 through the pressing block 505.

[0072] Step S12: Press the side wall of the end of the circular tube 7 through the pressing block 505 to correct the inclination angle of the end of the circular tube 7 by the pressing block 505, so that the distance between the laser 905 and the circular tube 7 is constant.

[0073] The implementation principle of the present invention is as follows:

[0074] During use, the circular tube 7 sequentially passes through the clamping disc 801 and the cutting disc 901 under the action of the feeding device. At the same time, the clamping head 814 fits on the outer side wall of the circular tube 7. After the circular tube 7 passes through the cutting disc 901, it contacts and presses the push block 507. The push block 507 drives the L-shaped rod 504 to rotate through the push rod 508 and the connecting block 506, and the L-shaped rod 504 presses the outer side wall of the end of the circular tube 7 through the pressing block 505 to correct the inclination angle of the end of the circular tube 7, so that the distance between the laser 905 and the circular tube 7 is constant, ensuring that the laser 905 can cut the circular tube 7 evenly. At the same time, the circular tube 7 drives the pull rod 501 to move synchronously. During this process, the pull rod 501 drives the clamping disc 801 to move through the connecting head 502, so that the clamping disc 801 slides along the chute 813 on the sliding table 802. During the sliding of the clamping disc 801, since the clamping head 814 fits on the outer side wall of the circular tube 7, the connecting rod 815 inside the clamping disc 801 rotates inward, as Figure 6 shown. As the connecting rod 815 rotates, the clamping head 814 on the connecting rod 815 presses and clamps the outer side wall of the circular tube 7, so that the clamping connection assembly 8 is connected to the circular tube 7. Under the clamping of the clamping head 814, the circular tube 7 between the end of the pull rod 501 and the clamping head 814 is fixed. Refer to Figure 9 , since the laser 905 is located between the end of the pull rod 501 and the clamping head 814, during the process of the laser 905 cutting the circular tube 7, the laser 905 can cut the circular tube 7 completely, avoiding the phenomenon that large burrs are generated at the cutting port of the circular tube 7 due to the breakage of the circular tube 7 under its own gravity during the cutting process of the laser 905, and avoiding the falling of the circular tube 7 cutting piece and damaging the laser 905;

[0075] When the clamping head 814 clamps the circular tube 7, the circular tube 7, the clamping connection assembly 8, the cutting assembly 9 and the workbench 4 form a whole. Therefore, the circular tube 7 and the cutting assembly 9 move synchronously, improving the cutting accuracy of the laser 905;

[0076] Subsequently, the laser 905 is adjusted to a suitable position through the vertical slide rail 902 and the horizontal slide rail 904. The drive motor 804 is started. The drive motor 804 drives the turntable 806 to rotate through the engagement of the gear 805 and the gear ring 808. The turntable 806 drives the circular tube 7 to rotate through the connecting rod 815. At the same time, the laser 905 is used to cut the circular tube 7 circumferentially, avoiding the problem of interference of the wire harness of the laser 905 and simplifying the layout of the laser 905.

[0077] When the laser 905 completely cuts the circular tube 7, at this time, the circular tube 7 moves to the top of the blanking assembly 6. The electromagnetic chuck one 811 is turned off, and the electromagnetic chuck two 812 is started, so that the electromagnetic chuck two 812 is connected to the fixed head 810, and then drives the fixed head 810 to shift inside the slider 809. See Figure 7 , during this process, the clamping disc 801 on the fixed head 810 drives the pull rod 501 to shift, so that the push block 507 and the pressing block 505 are separated from the circular tube 7. The circular tube 7 cutting piece is blanked through the blanking assembly 6. Then, the workbench 4 is quickly moved to the initial position through the drive device at the bottom of the workbench 4, so that the clamping connection assembly 8 and the cutting assembly 9 repeat the above operations.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A split-type cutting machine, characterized in that: It includes a frame housing (1) and a round tube (7). Inside the frame housing (1), a bed frame (2) is installed. A guide rod (3) is installed on the bed frame (2), and the guide rod (3) is in driving connection with a workbench (4). A clamping connection assembly (8) and a cutting assembly (9) are respectively installed on the workbench (4). The clamping connection assembly (8) is slidably installed on the workbench (4), and the cutting assembly (9) is fixedly installed on the workbench (4). A positioning and correction assembly (5) is slidably installed on the clamping connection assembly (8) and the cutting assembly (9). The round tube (7) is sequentially inserted into the clamping connection assembly (8) and the cutting assembly (9). The cutting assembly (9) includes a cutting disc (901) and an adjustable laser (905) installed on the cutting disc (901). The clamping connection assembly (8) includes a clamping disc (801) and a turntable (806) rotatably installed inside the clamping disc (801). A vertical groove (816) is opened inside the turntable (806). A connecting rod (815) is rotatably installed in the vertical groove (816). A clamping head (814) is rotatably connected to the connecting rod (815). The clamping head (814) is attached to the outer wall of the round tube (7). The turntable (806) is driven by a driving motor (804). A return spring (11) is connected between the clamping disc (801) and the cutting disc (901). The positioning and correction assembly (5) includes a pull rod (501) and a connecting head (502). The pull rod (501) is slidably connected to the clamping disc (801) and the cutting disc (901) respectively. A connecting head (502) is installed at one end of the pull rod (501). The connecting head (502) is connected to the clamping disc (801). After the round tube (7) is inserted into the clamping connection assembly (8) and the cutting assembly (9), it abuts against the other end of the pull rod (501).

2. The split cutter according to claim 1, characterized in that: A driving motor (804) is installed on the clamping disc (801). The output end of the driving motor (804) is connected to a gear (805). A toothed ring (808) is installed on the turntable (806). The gear (805) meshes with the toothed ring (808). An annular groove (803) is opened inside the clamping disc (801). An annular sliding head (807) is installed on the turntable (806). The annular sliding head (807) is slidably installed inside the annular groove (803).

3. The split-type cutting machine according to claim 1, characterized in that: A telescopic pressure rod (817) is installed on the vertical groove (816). The end of the telescopic pressure rod (817) is connected to the connecting rod (815).

4. The split-type cutting machine according to claim 1, characterized in that: A sliding table (802) is installed on the workbench (4). A sliding groove (813) is opened on the sliding table (802). A slider (809) is slidably installed inside the sliding groove (813). An electromagnetic chuck one (811) and an electromagnetic chuck two (812) are respectively installed at both ends of the slider (809). A fixed head (810) is slidably installed inside the slider (809). The clamping disc (801) is fixedly installed on the fixed head (810).

5. The split-type cutting machine according to claim 1, characterized in that: A vertical slide rail (902) is installed on the cutting disc (901). A horizontal slide rail (904) is slidably installed on the vertical slide rail (902). A laser (905) is slidably installed on the horizontal slide rail (904). The horizontal slide rail (904) on the vertical slide rail (902) is driven by a vertical motor (903), and the laser (905) on the horizontal slide rail (904) is driven by a horizontal motor (906).

6. A split-type cutting machine according to claim 1, characterized in that: A fixed table (907) is installed on the workbench (4). The cutting disc (901) is fixedly installed on the fixed table (907). A retaining sleeve (12) is installed on the workbench (4). The clamping connection assembly (8) and the cutting assembly (9) are installed inside the retaining sleeve (12). A blanking assembly (6) is installed on the frame housing (1).

7. The split cutter according to claim 6, characterized in that: The blanking assembly (6) includes a support table (601). An arc-shaped plate (602) is installed on the support table (601). A rotating rod (603) is rotatably installed on the arc-shaped plate (602). A cylinder (604) is installed on the support table (601). The output end of the cylinder (604) is connected to the rotating rod (603).

8. The split-type cutting machine according to claim 1, characterized in that: The positioning and correcting assembly (5) further includes an L-shaped rod (504). An installation groove (503) is formed on the pull rod (501). The L-shaped rod (504) is rotatably installed inside the installation groove (503). One end of the L-shaped rod (504) is connected to a pressing block (505). The pressing block (505) fits against the outer side wall of the circular tube (7). The other end of the L-shaped rod (504) is installed with a connecting block (506). The connecting block (506) is connected to a pushing block (507) through a push rod (508). The end of the circular tube (7) abuts against the pushing block (507). A compression spring (509) is installed on the pushing block (507).

9. A cutting method for a split-type cutting machine, characterized in that, The method is applied to the split-type cutting machine as described in any one of claims 1-8 above. The method includes the following steps: Step S1: The circular tube (7) passes through the clamping disc (801) and the cutting disc (901) in sequence. After the circular tube (7) passes through the cutting disc (901), it contacts the end of the pull rod (501). As the circular tube (7) moves, the circular tube (7) drives the pull rod (501) to move synchronously. The pull rod (501) drives the clamping disc (801) to move through the connecting head (502). Step S2: During the sliding process of the clamping disc (801), the connecting rod (815) inside the clamping disc (801) rotates inward. As the connecting rod (815) rotates, the clamping head (814) on the connecting rod (815) presses and clamps the outer side wall of the circular tube (7), so that the clamping connection assembly (8) is connected to the circular tube (7). Step S3: Under the clamping of the clamping head (814), the circular tube (7) between the end of the pull rod (501) and the clamping head (814) is fixed. When the clamping head (814) clamps the circular tube (7), the circular tube (7), the clamping connection assembly (8), the cutting assembly (9) and the workbench (4) form an integral body.

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