Laser composite cutting machine and control method thereof

Abstract

The present invention relates to the technical field of laser compound cutting machines, specifically a laser compound cutting machine and a control method thereof, comprising a cutting machine body, a laser cutting head arranged on the cutting machine body, a walking truss arranged above the cutting machine body, a supporting truss for supporting the walking truss, and a moving block arranged on the walking truss; the present invention adopts a reciprocating movable plate arranged above the fixed plate, and a variable ejection mechanism arranged between the reciprocating movable plate and the fixed plate, so that after the cutting machine body completes cutting of the thick plate, multiple variable ejection mechanisms can, according to the cutting trajectory of the cutting machine body, enable the variable ejection mechanisms located in the inner circuit of the cutting trajectory to move back and forth and downward accordingly along with the reciprocating movable plate, thereby further realizing the corresponding stable knocking and separation effect on the cut workpiece, and realizing stable removal of the workpiece without the need for manual additional knocking to remove the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of laser compound cutting machines, and in particular to a laser compound cutting machine and a control method thereof. Background Art

[0002] The laser composite cutting machine is a new type of equipment that integrates the advantages of fiber laser cutting and flame cutting. Through the synergy of CNC systems, motion control algorithms, sensor feedback and process optimization technologies, it achieves precise control and efficient transmission of the cutting trajectory. The laser composite cutting machine is specially designed for cutting thick plate metal materials. It significantly outperforms traditional single-technology equipment in cutting efficiency, energy consumption, cost and processing quality. It is especially suitable for thick plate processing scenarios with high requirements for precision and efficiency.

[0003] At present, when cutting thick plates, due to the large thickness of the thick plates themselves, the laser composite cutting machine realizes cutting by melting the material at high temperature. The molten material should be blown away by the auxiliary gas (such as oxygen and nitrogen). However, due to insufficient gas pressure, uneven flow rate or nozzle clogging during the cutting process, the slag will re-adhere to the cutting edge or groove, forming a sticky state. After the slag cools and hardens, it firmly bonds the cut workpiece to the waste material, making it difficult for the workpiece to be automatically separated. Although the existing method is to manually knock on the sticky workpieces one by one, on the one hand, the knocking force is uncontrollable, which can easily cause scratches, deformation or microstructural damage on the workpiece surface, affecting the performance of precision parts. On the other hand, the debris generated by the knocking may splash and injure people, and long-term vibration can easily cause occupational diseases in the operator's arm. At the same time, it takes a long time, especially in mass production, which seriously affects work efficiency. For this reason, we propose a laser composite cutting machine and its control method. Summary of the Invention

[0004] The object of the present invention is to provide a laser composite cutting machine and a control method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a laser compound cutting machine, comprising a cutting machine body, a laser cutting head arranged on the cutting machine body, a traveling truss arranged above the cutting machine body, a supporting truss for supporting the traveling truss, and a moving block arranged on the traveling truss, wherein the moving block is movably arranged on the traveling truss, a telescopic connecting member is provided at the bottom of the moving block, a fixing frame is fixedly connected to the bottom of the telescopic connecting member, fixing rods are fixedly connected at the four corners of the bottom of the fixing frame, and the bottoms of the four fixing rods are fixedly connected to fixing plates, and the bottom of the fixing plate is provided with a clamping member for clamping and fixing the cut thick plate;

[0006] A reciprocating plate is provided above the fixed plate, the reciprocating plate is slidably sleeved on the outside of the four fixed rods, and a reciprocating member for reciprocatingly driving the reciprocating plate is provided on the fixed frame;

[0007] The fixed plate is provided with a plurality of first through holes in a matrix, and the reciprocating plate is provided with a plurality of second through holes in a matrix, the first through holes are fixedly mounted with fixed sleeves, and the second through holes are provided with movable sleeves, and a variable ejection mechanism is provided between the fixed sleeve and the movable sleeve, and the variable ejection mechanism ejects the cut workpiece;

[0008] A support platform is provided on the outside of the cutting machine body, and a support member for supporting the cut thick plate is provided on the support platform.

[0009] Furthermore, the clamping member includes a side plate, a jack and a clamping plate. There are two side plates, which are respectively fixedly mounted on the bottom of both sides of the fixed plate. The jack is fixedly mounted on the side plate, and the output end of the jack is fixedly connected to the clamping plate.

[0010] Furthermore, the reciprocating member includes a swing rod, a rotating shaft, a synchronizing member and a transmission member. The swing rod is provided in plurality and the plurality of swing rods are respectively located on both sides of the fixed frame. One end of the swing rod is fixedly connected to a swing shaft, and a swing opening is provided at a position of the reciprocating plate corresponding to the swing shaft.

[0011] One end of the rotating shaft is fixedly connected to the swing rod, and the plurality of rotating shafts respectively pass through both sides of the fixing frame, and the rotating shafts are rotatably connected to the fixing frame;

[0012] There are two synchronizers, which are respectively located on both sides of the fixed frame, and the two synchronizers respectively drive the multiple rotating shafts synchronously;

[0013] A driving shaft is provided on both sides of the fixed frame, and the driving shaft is fixedly connected to one of the rotating shafts. The transmission member is provided on the fixed frame, and the transmission member is used to synchronously drive the two driving shafts, and through the reciprocating member provided, the reciprocating moving plate is driven reciprocally.

[0014] Furthermore, the inner walls of the fixed sleeve and the movable sleeve are respectively provided with a plurality of clamping holes, and are clamped with the variable ejection mechanism through the clamping holes.

[0015] Furthermore, the variable ejection mechanism includes an ejection rod, a knocking block, an abutment member, an alternating clamping member, and a pushing member. The ejection rod is located between the fixed sleeve and the movable sleeve. The knocking block is fixedly mounted on the bottom of the ejection rod, and when the knocking block is not in the knocking state, its bottom is flush with the bottom of the fixed sleeve.

[0016] A movable cavity is provided inside the ejector rod, the abutment member is located in the movable cavity, two alternating clamping members are provided, and ejection grooves are provided at the corresponding upper and lower ends of the ejector rod, and the two alternating clamping members are respectively provided at the ejection grooves;

[0017] The pushing member is arranged at the top of the movable cavity, and is used to push the abutting member. Through the variable ejection mechanism, the workpiece located inside the track can be ejected accordingly according to the cutting track of the laser cutting head.

[0018] Furthermore, the alternating clamping member includes a positioning plate, a moving rod, a wedge-shaped block and a clamping block, the positioning plate is fixedly installed at the ejection groove, the moving rod slides through the positioning plate, the two ends of the moving rod are respectively fixedly connected to the clamping block and the wedge-shaped block, and the clamping block is clamped with the clamping hole;

[0019] A connecting spring is also provided on the outside of the movable rod, and the two ends of the connecting spring are fixedly connected to the clamping block and the positioning plate respectively. Through the provided alternating clamping parts, the ejection rod is alternately connected to the fixed sleeve and the movable sleeve respectively.

[0020] Furthermore, the abutment member includes a first abutment block, a second abutment block, a support rod and a buffer member, the first abutment block and the second abutment block are slidably arranged inside the movable cavity, the first abutment block is used to abut against a plurality of wedge-shaped blocks near the fixed sleeve, and the second abutment block is used to abut against a plurality of wedge-shaped blocks near the movable sleeve;

[0021] There are multiple support rods, and the multiple support rods are fixedly connected to the first abutment block and the second abutment block respectively. The multiple buffer parts are arranged at one end of the multiple support rods close to each other, and the alternating abutment of the alternating clamping parts is achieved through the provided abutment parts.

[0022] Furthermore, the buffer member includes a buffer top plate, a buffer bottom plate, an intermediate rod and a locking spring, wherein the buffer top plate and the buffer bottom plate are respectively fixedly connected to both ends of the intermediate rod, and the buffer top plate and the buffer bottom plate are respectively slidably arranged inside the movable cavity;

[0023] The locking spring is sleeved on the outside of the middle rod, one end of the locking spring is fixedly connected to the inner wall of the movable cavity, and the other end of the locking spring is fixedly connected to the buffer bottom plate, and the buffer part is provided to realize the function of connecting multiple support rods.

[0024] Furthermore, the pushing member includes an electromagnet and a connecting iron block. The electromagnet is fixedly installed on the top of the movable cavity, and the connecting iron block is fixedly installed on the top of the support rod at the second abutment block. The pushing member is provided to achieve the function of adsorption and connection of the second abutment block.

[0025] A control method for a laser composite cutting machine comprises the following steps:

[0026] Step 1: First, the thick plate is clamped and fixed by the clamping parts. Then, the thick plate is clamped to the cutting table of the cutting machine body by moving the telescopic connecting parts, the moving blocks and the walking truss.

[0027] Step 2: The laser cutting head performs laser composite cutting along the thick plate according to the set cutting trajectory until the cutting is completed and the cut workpiece is stuck in the cutting groove;

[0028] Step 3: The thick plate after cutting is moved to the support part of the support table, and the variable ejector mechanism located inside the cutting track moves back and forth up and down relative to the workpiece along with the reciprocating moving plate. While the variable ejector mechanism moves back and forth up and down, it knocks the cut workpiece back and forth until the workpiece falls stably from the cutting groove to the support table.

[0029] The present invention has at least the following beneficial effects:

[0030] 1. When the present invention is in use, the traveling truss arranged above the cutting machine body, the moving block, the telescopic connecting piece, the fixed plate and the clamping piece on the traveling truss can coordinate the loading and unloading of the thick plate to be cut on the cutting machine body, thereby facilitating the cutting machine body to cut the thick plate quickly and stably;

[0031] 2. The present invention adopts a reciprocating plate arranged above the fixed plate and a variable ejection mechanism arranged between the reciprocating plate and the fixed plate. Thus, after the cutting machine body completes cutting of the thick plate, multiple variable ejection mechanisms can be arranged according to the cutting track of the cutting machine body, so that the variable ejection mechanisms located in the inner circuit of the cutting track can move back and forth and downward accordingly along with the reciprocating plate, thereby further achieving the function of correspondingly and stably knocking and separating the cut workpiece, realizing stable removal of the workpiece, without the need for additional manual knocking to remove the workpiece, and further improving the processing efficiency of the cutting machine body.

[0032] 3. The present invention provides a support platform on the outside of the cutting machine body, which can support the thick plate after cutting, and further ensure that the cut workpiece can be stably separated from the thick plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view of the overall structure of the present invention;

[0034] Figure 2 It is a side view of the overall structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the cutting machine body of the present invention;

[0036] Figure 4 This is a schematic diagram of the front view structure of the support platform of the present invention;

[0037] Figure 5 This is a structural schematic diagram of the fixing frame of the present invention;

[0038] Figure 6 This is a schematic diagram of the support plate structure of the present invention;

[0039] Figure 7 This is a schematic structural diagram of two clamping blocks on the clamping plate of the present invention;

[0040] Figure 8 This is a schematic diagram of the fixed plate structure of the present invention;

[0041] Figure 9 This is a schematic diagram of the swing arm structure of the present invention;

[0042] Figure 10 This is a schematic diagram of the ejector rod structure of the present invention;

[0043] Figure 11 This is a schematic diagram of the cross-sectional structure of the ejector rod of the present invention;

[0044] Figure 12 This is a schematic diagram of the structure of the pusher of the present invention;

[0045] Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure of area A in the middle;

[0046] Figure 14 This is a schematic diagram of the support rod structure of the present invention.

[0047] In the figure: 1-cutting machine body; 11-laser cutting head; 12-travel truss; 13-support truss; 14-moving block; 2-telescopic connecting member; 3-fixed frame; 31-fixed rod; 4-fixed plate; 41-first through hole; 42-fixed sleeve; 5-clamping member; 51-side plate; 52-jack; 53-clamping plate; 6-reciprocating plate; 61-second through hole; 62-moving sleeve; 7-reciprocating member; 71-swinging rod; 72-rotating shaft; 73-synchronizing member; 74-transmission member; 75-driving shaft; 8-variable ejector mechanism; 81-ejector rod; 811-moving cavity; 812-ejector slot; 82-knocking block ;83-abutment;831-first abutment block;832-second abutment block;833-support rod;834-buffer;8341-buffer top plate;8342-buffer bottom plate;8343-middle rod;8344-locking spring;84-alternating clamping member;841-positioning plate;842-moving rod;843-wedge block;844-clamping block;845-connecting spring;85-pushing member;851-electromagnet;852-connecting iron block;9-support platform;91-support member;911-support plate;912-lifting plate;913-locking bolt;914-positioning column;915-buffer pad;10-clamping hole. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0049] See also Figures 1 to 2 A laser compound cutting machine includes a cutting machine body 1, a laser cutting head 11 arranged on the cutting machine body 1, a walking truss 12 arranged above the cutting machine body 1, a supporting truss 13 for supporting the walking truss 12, and a moving block 14 arranged on the walking truss 12. The moving block 14 is movably arranged on the walking truss 12, that is, a moving track is arranged on the walking truss 12, so that the moving block 14 can move relative to the walking truss 12, and a telescopic connecting member 2 is arranged at the bottom of the moving block 14. In this embodiment, the walking truss 12 and the supporting truss 13 are both existing mechanisms, and there are two supporting trusses 13. The two supporting trusses 13 are arranged at both ends of the walking truss 12 for supporting the walking truss 12. At the same time, a moving track is arranged on the supporting truss 13, so that the walking truss 12 can move along the supporting truss 13.

[0050] See also Figures 2 to 3, the bottom of the telescopic connecting member 2 is fixedly connected to the fixing frame 3. As a supplementary explanation, in this embodiment, the telescopic connecting member 2 includes a telescopic cylinder, a connecting plate and a connecting steel rod. The telescopic cylinder is fixedly mounted on the bottom of the moving block 14, and the connecting plate is fixedly mounted on the bottom of the telescopic cylinder. A plurality of connecting steel rods are provided, and one end of the plurality of connecting steel rods is rotatably connected to the connecting plate through a hinge support, and the other end of the plurality of connecting steel rods is rotatably connected to the fixing frame 3 through a hinge support;

[0051] The four corners of the bottom of the fixing frame 3 are fixedly connected with fixing rods 31, and the bottoms of the four fixing rods 31 are fixedly connected with fixing plates 4. The bottom of the fixing plate 4 is provided with a clamping member 5 for clamping and fixing the cut thick plate;

[0052] See also Figures 3 to 7 The clamping member 5 includes a side plate 51, a jack 52 and a clamping plate 53. There are two side plates 51, which are fixedly mounted on the bottom of both sides of the fixed plate 4. The jack 52 is fixedly mounted on the side plate 51, and the output end of the jack 52 is fixedly connected to the clamping plate 53.

[0053] At the same time, in this embodiment, two clamping blocks are further provided on one side of the clamping plate 53, and a movable groove is provided inside the clamping plate 53, and a bidirectional threaded screw is rotatably connected inside the movable groove. One end of the two clamping blocks is slidably connected inside the movable groove, and the clamping blocks are threadedly sleeved on the outside of the bidirectional threaded screw, and one end of the bidirectional threaded screw is fixedly connected to a handle;

[0054] By rotating the handle, the bidirectional threaded screw is rotated. When the bidirectional threaded screw rotates, it provides driving force in opposite directions to the two clamping blocks, further enabling the two clamping blocks to further clamp and fix the other two sides of the thick plate.

[0055] Specific implementation process: When performing laser composite cutting on thick plates, the fixed frame 3 moves to the thick plate to be cut, and then the telescopic connecting member 2 moves to move the bottom of the fixed plate 4 to the upper surface of the thick plate. Subsequently, the two jacks 52 are operated to further move the two clamping plates 53 toward each other to achieve the function of clamping and fixing the thick plate. When the thick plate is clamped and fixed, the clamping blocks simultaneously clamp and fix the other two sides of the thick plate. Subsequently, the thick plate is further clamped to the cutting table of the cutting machine body 1 through the movement of the walking truss 12, the moving block 14 and the telescopic connecting member 2. The laser cutting head 11 can accurately cut the thick plate according to the set trajectory through the coordinated effect of the numerical control system, motion control algorithm, sensor feedback and process optimization technology.

[0056] When the cutting is completed, the two clamping plates 53 clamp the thick plate again and cut the material.

[0057] See also Figures 5 to 9A reciprocating plate 6 is provided above the fixed plate 4, and the reciprocating plate 6 is slidably sleeved on the outside of the four fixed rods 31. A reciprocating member 7 for reciprocatingly driving the reciprocating plate 6 is provided on the fixed frame 3;

[0058] The reciprocating member 7 includes a swing rod 71, a rotating shaft 72, a synchronizer 73, and a transmission member 74. There are multiple swing rods 71, each located on both sides of the fixed frame 3. One end of the swing rod 71 is fixedly connected to a swing shaft, and the reciprocating plate 6 is provided with a swing opening at a position corresponding to the swing shaft. In this embodiment, the reciprocating plate 6 is made of a material with high yield strength and high tensile strength, such as DH690 steel plate or dual-phase steel.

[0059] One end of the rotating shaft 72 is fixedly connected to the swing rod 71. The multiple rotating shafts 72 respectively pass through both sides of the fixing frame 3, and the rotating shafts 72 are rotatably connected to the fixing frame 3.

[0060] There are two synchronizers 73, which are respectively located on both sides of the fixing frame 3, and the two synchronizers 73 respectively drive the multiple rotating shafts 72 synchronously;

[0061] A driving shaft 75 is provided on both sides of the fixing frame 3, and the driving shaft 75 is fixedly connected to one of the rotating shafts 72. A transmission member 74 is provided on the fixing frame 3, and the transmission member 74 is used to synchronously drive the two driving shafts 75;

[0062] As a supplementary explanation, the synchronizer 73 includes a synchronizer gear, a synchronizer chain, and a tensioning rod. There are multiple synchronizer gears, and the multiple synchronizer gears are fixedly sleeved on the outside of the rotating shaft 72. The synchronizer chain is used to synchronize the transmission of the multiple synchronizer gears. The tensioning rod is provided on the fixed frame 3, and there are multiple tensioning rods. The multiple tensioning rods keep the synchronizer chain in a tensioned state.

[0063] The transmission member 74 includes a first rotating gear, a second rotating gear, a rotating gear chain, a synchronization rod, a rotating motor, a first rotating gear and a second rotating gear. There are two first rotating gears, and the two first rotating gears are fixedly sleeved on the outside of the driving shaft 75.

[0064] The first rotating gear is transmission-connected to the second rotating gear via a rotating gear chain, and both ends of the synchronization rod are fixedly connected to the two second rotating gears. The synchronization rod is rotationally connected to the fixed frame 3. The rotating motor is fixedly mounted on the fixed frame 3. The output end of the rotating motor is fixedly connected to the first rotating gear, and the first rotating gear is meshed with the second rotating gear. The second rotating gear is fixedly sleeved on the outside of the synchronization rod.

[0065] Then, by running the rotating motor, the first rotating gear drives the second rotating gear to rotate, and further the synchronization rod drives the second rotating gears at both ends thereof to rotate synchronously. Under the transmission action of the first rotating gear and the rotating gear chain, the two driving shafts 75 rotate synchronously, and under the action of the synchronization member 73, the multiple rotating shafts 72 are further rotated. When the rotating shaft 72 rotates, the swing rod 71 rotates. The swing rod 71 is limited by the swing shaft and the swinging mouth of the reciprocating plate 6, and further causes the reciprocating plate 6 to reciprocate up and down relative to the four fixed rods 31.

[0066] A plurality of first through holes 41 are arranged in a matrix on the fixed plate 4, and a plurality of second through holes 61 are arranged in a matrix on the reciprocating plate 6. A fixed sleeve 42 is fixedly installed in the first through hole 41, and a movable sleeve 62 is provided at the second through hole 61. A variable ejection mechanism 8 is provided between the fixed sleeve 42 and the movable sleeve 62. The variable ejection mechanism 8 ejects the cut workpiece.

[0067] A support platform 9 is provided on the outside of the cutting machine body 1, and a support member 91 is provided on the support platform 9 for supporting the thick plate after cutting;

[0068] The inner walls of the fixed sleeve 42 and the movable sleeve 62 are respectively provided with a plurality of engaging holes 10, and are engaged with the variable ejection mechanism 8 through the engaging holes 10;

[0069] See also Figures 7 to 13 The variable ejection mechanism 8 includes an ejection rod 81, a knocking block 82, an abutment member 83, an alternating clamping member 84 and a pushing member 85. The ejection rod 81 is located between the fixed sleeve 42 and the movable sleeve 62. The knocking block 82 is fixedly installed at the bottom of the ejection rod 81. When the knocking block 82 is not in the knocking state, its bottom is flush with the bottom of the fixed sleeve 42.

[0070] A movable cavity 811 is provided inside the ejector rod 81, the abutment member 83 is located at the movable cavity 811, two alternating clamping members 84 are provided, and ejection grooves 812 are provided at the corresponding upper and lower ends of the ejector rod 81, and the two alternating clamping members 84 are respectively provided at the ejection grooves 812;

[0071] The pushing member 85 is disposed on the top of the moving cavity 811 , and is used to push the abutting member 83 .

[0072] The alternating clamping member 84 includes a positioning plate 841, a movable rod 842, a wedge-shaped block 843, and a clamping block 844. The positioning plate 841 is fixedly mounted on the ejection groove 812. The movable rod 842 slides through the positioning plate 841. The ends of the movable rod 842 are respectively fixedly connected to the clamping block 844 and the wedge-shaped block 843. The clamping block 844 is clamped to the clamping hole 10.

[0073] A connecting spring 845 is further provided on the outer side of the moving rod 842 , and both ends of the connecting spring 845 are fixedly connected to the clamping block 844 and the positioning plate 841 respectively.

[0074] The abutment member 83 includes a first abutment block 831, a second abutment block 832, a support rod 833, and a buffer member 834. The first abutment block 831 and the second abutment block 832 are slidably disposed within the movable cavity 811. The first abutment block 831 is used to abut against a plurality of wedge-shaped blocks 843 near the fixed sleeve 42, and the second abutment block 832 is used to abut against a plurality of wedge-shaped blocks 843 near the movable sleeve 62.

[0075] There are multiple support rods 833 , and the multiple support rods 833 are fixedly connected to the first abutting block 831 and the second abutting block 832 respectively. The multiple buffer members 834 are arranged at one end of the multiple support rods 833 that are close to each other.

[0076] The buffer member 834 includes a buffer top plate 8341, a buffer bottom plate 8342, an intermediate rod 8343, and a locking spring 8344. The buffer top plate 8341 and the buffer bottom plate 8342 are fixedly connected to both ends of the intermediate rod 8343, and the buffer top plate 8341 and the buffer bottom plate 8342 are slidably disposed within the movable cavity 811.

[0077] The locking spring 8344 is sleeved on the outside of the middle rod 8343 , one end of the locking spring 8344 is fixedly connected to the inner wall of the moving cavity 811 , and the other end of the locking spring 8344 is fixedly connected to the buffer bottom plate 8342 .

[0078] The pusher 85 includes an electromagnet 851 and a connecting iron block 852. The electromagnet 851 is fixedly mounted on the top of the moving cavity 811. The connecting iron block 852 is fixedly mounted on the top of the support rod 833 at the second abutment block 832.

[0079] Specific implementation process: In this embodiment, the laser cutting head 11 performs laser composite cutting on the thick plate according to the cutting trajectory set by the system, and the cutting trajectory signal is synchronously sent to the electromagnets 851 inside the multiple ejector rods 81. Then, during the process of transportation and cutting, due to the reverse elastic action of the locking spring 8344, the clamping blocks 844 at the alternating clamping members 84 at the bottom of the multiple ejector rods 81 are respectively clamped with the clamping holes 10 at the fixed sleeve 42. At this time, the ejector rods 81 are relatively fixed to the fixed plate 4, and the reciprocating plate 6 can be moved relative to the ejector rods 81 through the movable sleeve 62.

[0080] When the cutting is completed, when the thick plate is moved to the position of the support 91, the electromagnet 851 located inside the cutting track is energized, and the connecting iron block 852 moves up. At this time, the first abutment block 831 disengages from the alternating clamping piece 84 at the fixed sleeve 42, and multiple clamping blocks 844 disengage from the clamping hole 10 of the fixed sleeve 42, and the second abutment block 832 moves up to the alternating clamping piece 84 of the movable sleeve 62. At this time, multiple clamping blocks 844 are clamped in the clamping hole 10 at the movable sleeve 62. Subsequently, the reciprocating movable plate 6 moves back and forth relative to the fixed plate 4, and the knocking block 82 realizes reciprocating knocking of the cut workpiece, so that multiple workpieces can be synchronously and stably removed from the cutting groove.

[0081] A control method for a laser composite cutting machine comprises the following steps:

[0082] Step 1: First, the thick plate is clamped and fixed by the clamping member 5. Then, the thick plate is clamped to the cutting table of the cutting machine body 1 by moving the telescopic connecting member 2, the moving block 14 and the traveling truss 12.

[0083] Step 2: The laser cutting head 11 performs laser composite cutting on the thick plate according to the set cutting trajectory until the cutting is completed and the cut workpiece is stuck in the cutting groove;

[0084] Step 3: The cut thick plate moves to the support member 91 of the support table 9, and the variable ejector mechanism 8 located inside the cutting track moves back and forth relative to the workpiece along with the reciprocating plate 6. While the variable ejector mechanism 8 moves back and forth, it strikes the cut workpiece back and forth until the workpiece falls stably from the cutting groove onto the support table 9. Example 2

[0085] See also Figures 5 and 6 , Example 2 is a further supplementary explanation of the support member 91 in Example 1. Specifically, the support member 91 includes a support plate 911, a lifting plate 912, a locking bolt 913 and a positioning column 914. The support plate 911 is fixedly mounted on the upper surface of the support platform 9. A support cavity is provided inside the support plate 911. Two lifting plates 912 are provided. The two lifting plates 912 are slidably connected to the two ends of the support cavity. The locking bolt 913 is rotatably connected to the support plate 911, and the locking bolt 913 is used to lock the lifting plates 912. The lifting plates 912 are U-shaped, and the top of the lifting plates 912 is a lifting surface. The cut thick plates are placed on the lifting surfaces of the two lifting plates 912. There are multiple positioning columns 914, and the multiple positioning columns 914 are fixedly mounted on the lifting surfaces.

[0086] A positioning hole is provided at the bottom of the clamping plate 53 corresponding to the position of the positioning column 914, and a buffer pad 915 is also provided on the support plate 911;

[0087] Therefore, when the cut thick plate is placed on the two supporting surfaces, the workpiece cut on the thick plate is driven by the variable ejection mechanism 8 and the reciprocating movable plate 6 to realize reciprocating knocking and ejecting of the workpiece, and the ejected workpiece falls on the buffer pad 915, thereby facilitating the collection of the cut workpiece.

[0088] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0089] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A laser composite cutting machine, comprising a cutting machine body (1), a laser cutting head (11) arranged on the cutting machine body (1), a traveling truss (12) arranged above the cutting machine body (1), a supporting truss (13) for supporting the traveling truss (12), and a moving block (14) arranged on the traveling truss (12), wherein the moving block (14) is movably arranged on the traveling truss (12), and a telescopic connecting member (2) is arranged at the bottom of the moving block (14), characterized in that: The bottom of the telescopic connecting member (2) is fixedly connected to a fixing frame (3), the four corners of the bottom of the fixing frame (3) are fixedly connected to fixing rods (31), and the bottoms of the four fixing rods (31) are fixedly connected to fixing plates (4), and the bottom of the fixing plates (4) is provided with a clamping member (5) for clamping and fixing the cut thick plate; A reciprocating plate (6) is provided above the fixed plate (4), the reciprocating plate (6) is slidably sleeved on the outside of four fixed rods (31), and a reciprocating member (7) for reciprocatingly driving the reciprocating plate (6) is provided on the fixed frame (3); A plurality of first through holes (41) are arranged on the fixed plate (4) in a matrix, and a plurality of second through holes (61) are arranged on the reciprocating plate (6) in a matrix, a fixed sleeve (42) is fixedly mounted on the first through hole (41), and a movable sleeve (62) is provided at the second through hole (61), a variable ejection mechanism (8) is provided between the fixed sleeve (42) and the movable sleeve (62), and the variable ejection mechanism (8) ejects the cut workpiece; A support platform (9) is provided on the outside of the cutting machine body (1), and a support member (91) for supporting the thick plate after cutting is provided on the support platform (9); The inner walls of the fixed sleeve (42) and the movable sleeve (62) are respectively provided with a plurality of clamping holes (10), and are clamped with the variable ejection mechanism (8) through the clamping holes (10); The variable ejection mechanism (8) comprises an ejection rod (81), a knocking block (82), an abutting member (83), an alternating clamping member (84) and a pushing member (85); the ejection rod (81) is located between the fixed sleeve (42) and the movable sleeve (62); the knocking block (82) is fixedly mounted on the bottom of the ejection rod (81); and when the knocking block (82) is not in a knocking state, its bottom is flush with the bottom of the fixed sleeve (42); A movable cavity (811) is provided inside the ejection rod (81), the abutting member (83) is located at the movable cavity (811), two alternating clamping members (84) are provided, and ejection grooves (812) are provided at the corresponding upper and lower ends of the ejection rod (81), and the two alternating clamping members (84) are respectively provided at the ejection grooves (812); The pushing member (85) is arranged on the top of the moving cavity (811), and the pushing member (85) is used to push the abutting member (83).

2. The laser composite cutting machine according to claim 1, characterized in that: The clamping member (5) comprises a side plate (51), a jack (52) and a clamping plate (53). Two side plates (51) are provided. The two side plates (51) are fixedly mounted on the bottoms of both sides of the fixed plate (4), respectively. The jack (52) is fixedly mounted on the side plate (51), and the output end of the jack (52) is fixedly connected to the clamping plate (53).

3. The laser composite cutting machine according to claim 1, characterized in that: The reciprocating member (7) includes a swing rod (71), a rotating shaft (72), a synchronous member (73) and a transmission member (74). A plurality of the swing rods (71) are provided. The plurality of swing rods (71) are respectively located on both sides of the fixed frame (3). One end of the swing rod (71) is fixedly connected to a swing shaft, and a swing opening is provided on the reciprocating plate (6) at a position corresponding to the swing shaft. One end of the rotating shaft (72) is fixedly connected to the swing rod (71), and the plurality of rotating shafts (72) respectively penetrate both sides of the fixing frame (3), and the rotating shafts (72) are rotatably connected to the fixing frame (3); There are two synchronizers (73), the two synchronizers (73) are respectively located on both sides of the fixed frame (3), and the two synchronizers (73) respectively drive the multiple rotating shafts (72) synchronously; A driving shaft (75) is provided on both sides of the fixed frame (3), and the driving shaft (75) is fixedly connected to one of the rotating shafts (72). The transmission member (74) is provided on the fixed frame (3), and the transmission member (74) is used to synchronously drive the two driving shafts (75).

4. The laser composite cutting machine according to claim 1, characterized in that: The alternating clamping member (84) includes a positioning plate (841), a moving rod (842), a wedge-shaped block (843) and a clamping block (844), wherein the positioning plate (841) is fixedly mounted on the ejection groove (812), the moving rod (842) slides through the positioning plate (841), and the two ends of the moving rod (842) are respectively fixedly connected to the clamping block (844) and the wedge-shaped block (843), and the clamping block (844) is clamped to the clamping hole (10); A connecting spring (845) is further provided on the outside of the moving rod (842), and both ends of the connecting spring (845) are fixedly connected to the clamping block (844) and the positioning plate (841) respectively.

5. The laser composite cutting machine according to claim 1, characterized in that: The abutment member (83) includes a first abutment block (831), a second abutment block (832), a support rod (833) and a buffer member (834); the first abutment block (831) and the second abutment block (832) are slidably arranged inside the movable cavity (811); the first abutment block (831) is used to abut against a plurality of wedge-shaped blocks (843) near the fixed sleeve (42); and the second abutment block (832) is used to abut against a plurality of wedge-shaped blocks (843) near the movable sleeve (62); A plurality of support rods (833) are provided, and the plurality of support rods (833) are fixedly connected to the first abutting block (831) and the second abutting block (832), respectively. The plurality of buffer members (834) are provided at one end of the plurality of support rods (833) close to each other.

6. The laser composite cutting machine according to claim 5, characterized in that: The buffer member (834) includes a buffer top plate (8341), a buffer bottom plate (8342), an intermediate rod (8343) and a locking spring (8344); the buffer top plate (8341) and the buffer bottom plate (8342) are respectively fixedly connected to the two ends of the intermediate rod (8343); and the buffer top plate (8341) and the buffer bottom plate (8342) are respectively slidably arranged inside the movable cavity (811); The locking spring (8344) is sleeved on the outside of the middle rod (8343), one end of the locking spring (8344) is fixedly connected to the inner wall of the movable cavity (811), and the other end of the locking spring (8344) is fixedly connected to the buffer bottom plate (8342).

7. The laser composite cutting machine according to claim 1, characterized in that: The pushing member (85) comprises an electromagnet (851) and a connecting iron block (852), wherein the electromagnet (851) is fixedly mounted on the top of the interior of the moving cavity (811), and the connecting iron block (852) is fixedly mounted on the top of the support rod (833) at the second abutment block (832).

8. The control method of a laser composite cutting machine according to claim 7, characterized in that: The following steps are involved: Step 1: First, the thick plate is clamped and fixed by the clamping member (5), and then, the thick plate is clamped to the cutting workbench of the cutting machine body (1) by moving the telescopic connecting member (2), the moving block (14) and the walking truss (12); Step 2: The laser cutting head (11) performs laser composite cutting along the thick plate according to the set cutting trajectory until the cutting is completed and the cut workpiece is stuck in the cutting groove; Step 3: The thick plate after cutting is moved to the support member (91) of the support table (9), and the variable ejection mechanism (8) located inside the cutting track moves up and down reciprocatingly with the reciprocating plate (6) relative to the workpiece. While the variable ejection mechanism (8) moves up and down reciprocatingly, it strikes the cut workpiece back and forth until the workpiece falls stably from the cutting groove onto the support table (9).

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