Laser cutting device for extrusion die machining

Abstract

The invention provides a laser cutting device for extrusion die machining, comprising: an objective table, the middle of the top side of which is fixedly provided with a heat insulation cylinder in a penetrating manner, and the interior of the heat insulation cylinder is provided with a mounting groove and a storage groove which are connected through a plurality of connecting holes from top to bottom; and the heat conduction net ring is arranged in the mounting groove, a heating piece is fixedly arranged on the bottom side of the heat conduction net ring, and the bottom side of the heating piece is fixedly connected with the inner wall of the mounting groove. When the improved laser cutting device is used for machining an extrusion die, rapid cooling treatment of an overheating part of a cutting groove can be completed through continuous overturning of a workpiece under the condition that cutting treatment of laser on the workpiece is not affected, meanwhile, preheating operation of the workpiece is completed through preheating of the part, close to the workpiece cutting part, of the workpiece through airflow, and the workpiece cutting efficiency is improved. The workpiece preheating effect is good, and the situation that the workpiece cutting effect is affected due to too high temperature caused by heat accumulation of part of the cutting part of the workpiece can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of extrusion die processing devices, and particularly relates to a laser cutting device for extrusion die processing. Background Art

[0002] A laser cutting machine emits laser light from a laser, which is focused into a laser beam with a high power density through an optical path system. The laser beam irradiates the surface of the workpiece, vaporizing the metal at the corresponding part of the workpiece, thereby forming a cut seam in the material. During the processing of the inner hole of the extrusion die, due to the processing requirements of some holes, laser cutting is generally used to complete the processing of the inner hole of the extrusion die.

[0003] For example, a laser cutting device for extrusion die processing with the publication number CN117680849B; includes a workbench, and a plurality of positioning jigs for independently clamping and positioning the extrusion die are inlaid and fixedly installed on the workbench surface; a flipping support mechanism is assembled on the workbench, and the flipping support mechanism includes a plurality of electric heating round tables arranged in one-to-one correspondence at a plurality of positioning jigs and a flipping drive assembly for driving the plurality of electric heating round tables to flip together; a cutting execution mechanism is assembled on the workbench surface; the device provided by the present invention provides batch cutting processing for the extrusion die workpiece, solves the problems that the preheating of the die workpiece and the temperature gradient difference affect the laser cutting quality, and also solves the problems of inconvenient slag cleaning and incomplete cleaning in laser cutting, improving the overall efficiency, cutting accuracy and quality of laser cutting.

[0004] When the above patent uses laser to cut and process the extrusion die plate, the workpiece is preheated by a heating element from the outside of the workpiece, thereby completing the preheating treatment of the workpiece and maintaining the temperature of the workpiece. Since during the laser cutting process of the workpiece, the cutting part of the workpiece may be at a certain distance from the workpiece heating part, it takes a certain time for heat conduction, which may affect the preheating effect. And because the workpiece itself has a certain temperature, there may also be a temperature difference at some positions of the workpiece. Multiple cycles of cutting may cause the temperature near the cutting part of the workpiece to be too high due to the influence of heat accumulation, which may cause deformation of the cut seam wall and affect the cutting effect. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to provide a laser cutting device for extrusion die processing that can complete the preheating treatment of the workpiece while cooling the overheated part of the workpiece during laser cutting of the workpiece, avoiding overheating of some positions of the workpiece from affecting the cutting effect of the workpiece, and at the same time completing the preliminary grinding and polishing treatment of the inner wall of the cutting groove, greatly reducing the processing efficiency of the extrusion die.

[0006] To solve the above problems, the present invention provides a laser cutting device for processing extrusion dies, comprising: a loading table, in the middle of the top side of which a heat insulation cylinder is fixedly penetrated, and an installation groove and a storage groove connected by a plurality of connection holes are arranged in the heat insulation cylinder from top to bottom; A heat conduction mesh ring, which is arranged in the installation groove, a heating element is fixedly installed on the bottom side of the heat conduction mesh ring, and the bottom side of the heating element is fixedly connected to the inner wall of the installation groove; Two clamping mechanisms, which are oppositely arranged on the outer peripheral side of the heat insulation cylinder for clamping and fixing the workpiece, and a turning mechanism is arranged on the outer peripheral side of the clamping mechanism for turning and adjusting the workpiece; A diversion groove is opened in the cylinder wall in the middle of the heat insulation cylinder, a plurality of exhaust pipes are arranged above the diversion groove, and the inside of each exhaust pipe communicates with the inside of the diversion groove; An air injection component, which is arranged in the storage groove for sucking the gas in the storage groove and injecting the gas into the diversion groove, and a feeding mechanism is arranged on the outer side of the air injection component for feeding steel sand into the air flow discharged by the air injection component.

[0007] Preferably, the inner wall of the top opening of the installation groove is arranged in an arc shape, and the inner bottom wall of the storage groove is arranged in an arc shape sunken from the periphery to the center position.

[0008] Preferably, a plurality of the exhaust pipes are divided into several groups and fixedly connected to the inner bottom wall of the installation groove, and the distance between adjacent two exhaust pipes in each group is equal.

[0009] Preferably, the clamping mechanism comprises a driver, which is fixedly installed on the top side of the loading table, and a threaded rod is fixedly installed at the driving end of the driver; A threaded cylinder, one end of which is threadedly sleeved on the outer periphery of the corresponding threaded rod, and the outer peripheral wall of the threaded cylinder is in contact with the top side of the heat insulation cylinder.

[0010] Preferably, the other end of the threaded cylinder is fixedly installed with an elastic pad, and the end of the elastic pad close to the heat conduction mesh ring is arranged in an arc shape, and honeycomb-shaped holes are formed in the elastic pad.

[0011] Preferably, the turning mechanism comprises a cam with an elliptical cross-sectional shape, and the cam is threadedly sleeved on the outer periphery of the corresponding threaded rod and fixedly connected to one end of the corresponding threaded cylinder; A rectangular groove is opened on the top side of the loading table, and the bottom of the cam is inserted into the corresponding rectangular groove and in contact with the inner bottom wall of the corresponding rectangular groove.

[0012] Preferably, the air injection component includes an air pump, which is fixedly installed on the inner top wall of the storage groove, and the exhaust port of the air pump communicates with the inside of the diversion groove. A filter cylinder I is sleeved on the outer periphery of the air pump, and the top end of the filter cylinder I is fixedly connected to the inner top wall of the storage groove.

[0013] Preferably, the feeding mechanism includes a second filter cartridge, which is fixedly installed on the bottom side of the heat insulation cylinder, and the bottom inside it is filled with steel sand; A plurality of connecting pipes, which are used for the communication between the inside of the diversion groove and the inside of the second filter cartridge. The top of the connecting pipe is inclined, and its top end is located above the exhaust port of the air pump. The bottom end of the connecting pipe extends to the bottom inside the second filter cartridge and is fixedly connected to the barrel wall of the heat insulation cylinder; A plugging member, which is arranged on the second filter cartridge and is used for plugging the bottom opening of the storage tank.

[0014] Preferably, the plugging member includes a sealing plate, which is arranged on the bottom side of the bottom opening of the storage tank; An electric control telescopic rod, which is fixedly installed at the central position of the bottom end of the second filter cartridge, and the push rod of the electric control telescopic rod slides through the barrel wall of the second filter cartridge and is fixedly connected to the sealing plate.

[0015] Preferably, the top side of the sealing plate and the inner bottom wall of the second filter cartridge are both arranged in an arc shape that bulges from the outer periphery to the central position, and the arc surface on the top side of the sealing plate is in contact with the inner wall of the bottom opening of the storage tank. Beneficial effects

[0016] 1. When the improved laser cutting device processes the extrusion die, through the continuous flipping of the workpiece, without affecting the laser cutting process of the workpiece, it can complete the rapid cooling of the overheated part of the cutting groove, and at the same time, through the airflow, the preheating of the workpiece is completed by preheating some parts of the workpiece near the cutting part of the workpiece. The preheating effect of the workpiece is good, and it can avoid the heat accumulation in some cutting parts of the workpiece, resulting in too high temperature and affecting the cutting effect of the workpiece; 2. During the process of preheating the workpiece and rapidly cooling the overheated part of the cutting groove of the workpiece, a small amount of steel sand can also be brought into the cutting groove through the airflow to simulate the sandblasting and grinding operation, and complete the preliminary grinding treatment of the inner wall of the cutting groove. Thus, a small amount of slag or burrs on the inner wall of the cutting groove can be removed to a certain extent, which can greatly reduce the grinding time of the inner wall of the hole of the workpiece after the laser cuts the workpiece, and thus greatly improve the processing efficiency of the extrusion die. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a three-dimensional view of the overall structure of the present invention; Figure 2 It is a three-dimensional view of the internal structure of part of the carrier table of the present invention; Figure 3 This is a perspective view of the overall structure of the heat insulation cylinder of the present invention; Figure 4 This is a perspective view of the internal structure of the heat insulation cylinder of the present invention; Figure 5 This is a top view of the threaded cylinder and the elastic pad of the present invention; Figure 6 This is the present invention Figure 2 An enlarged view of the structure at A in the present invention; Figure 7 This is a perspective view of the internal structure of the heat insulation cylinder and the second filter cylinder of the present invention.

[0019] The reference numerals are represented as follows: 1. Loading platform; 2. Heat insulation cylinder; 21. Installation groove; 22. Storage groove; 3. Heat conduction mesh ring; 4. Heating element; 5. Clamping mechanism; 51. Driver; 52. Threaded rod; 53. Threaded cylinder; 54. Elastic pad; 6. Flipping mechanism; 61. Cam; 62. Rectangular groove; 7. Air injection member; 71. Air pump; 72. First filter cylinder; 8. Feeding mechanism; 81. Second filter cylinder; 82. Connecting pipe; 83. Sealing member; 831. Sealing plate; 832. Electric control telescopic rod; 9. Flow dividing groove; 10. Exhaust pipe. Detailed implementation manners

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0022] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0024] Refer to in combination Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 7 As shown, according to an embodiment of the present invention, a laser cutting device for extrusion die processing is provided, including: a carrier table 1, in the middle of the top side of which a heat insulation cylinder 2 is fixedly penetrated and installed, and an installation groove 21 and a storage groove 22 connected by a plurality of connection holes are arranged in the heat insulation cylinder 2 from top to bottom; A heat conduction mesh ring 3 is arranged in the installation groove 21, a heating element 4 is fixedly installed on the bottom side of the heat conduction mesh ring 3, and the bottom side of the heating element 4 is fixedly connected to the inner wall of the installation groove 21; Two clamping mechanisms 5 are oppositely arranged on the outer peripheral side of the heat insulation cylinder 2 for clamping and fixing the workpiece, and a flipping mechanism 6 is arranged on the outer peripheral side thereof for flipping and adjusting the workpiece; A diversion groove 9 is opened in the cylinder wall in the middle of the heat insulation cylinder 2, a plurality of exhaust pipes 10 are arranged above the diversion groove 9, and the inside of each exhaust pipe 10 communicates with the inside of the diversion groove 9; An air injection member 7 is arranged in the storage groove 22 for sucking the gas in the storage groove 22 and injecting the gas into the diversion groove 9, and a feeding mechanism 8 is arranged outside the air injection member 7 for feeding steel sand into the airflow discharged by the air injection member 7.

[0025] In this embodiment, when the improved laser cutting device processes the extrusion die, first, please refer to Figure 1 and Figure 3 As shown, insert the bottom of the workpiece into the top opening of the installation groove 21 until the bottom side of the workpiece contacts the heat conduction mesh ring 3, and then according to Figure 1 and Figure 2 As shown, complete the clamping and positioning of the workpiece through the clamping mechanism 5 (a control host is fixedly installed on the top side of the carrier table 1 to control the internal electronic control components of the device), and the installation of the workpiece is completed; After the workpiece is installed, the heating element 4 is activated to heat the heat conduction mesh ring 3. (The heating element 4 is mainly composed of a housing and an electromagnetic heating structure, which is used to heat the heat conduction mesh ring 3 and keep the temperature on the heat conduction mesh ring 3 within a set range.) At this time, due to the heat exchange between the bottom of the workpiece and the heat conduction mesh ring 3, the temperature of the workpiece gradually rises until the temperature of the bottom of the workpiece is equal to that of the heat conduction mesh ring 3; Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, after the heating time at the bottom of the workpiece is reached, the flipping mechanism 6 and the clamping mechanism 5 cooperate with each other to continuously and intermittently flip the workpiece, so that the heated surface of the workpiece faces the laser cutting mechanism. (A laser cutting mechanism is installed at a position above the heat insulation cylinder 2 on the top side of the carrier table 1 for laser cutting processing of the workpiece.) And during the laser cutting of the workpiece, the gas injection part 7 is activated to continuously suck the gas in the storage tank 22 and inject the gas into the shunt tank 9. Then, the gas is injected into the cutting groove of the workpiece through a plurality of exhaust pipes 10, and then flows out of the cutting groove, passes through the holes of the heat conduction mesh ring 3, flows into the installation groove 21, and finally flows back into the storage tank 22 through the connection hole to supplement the lost gas in the storage tank 22; According to the above, during the process of the gas circulating and flowing in the installation groove 21 and the storage tank 22, due to the heat exchange between the gas and the heat conduction mesh ring 3, the temperature of the gas in the heat insulation cylinder 2 is always within the corresponding range. And during the rapid flow of the gas in the cutting groove, when the overheated part in the cutting groove contacts the gas, heat exchange is continuously carried out with the gas, so as to complete the cooling treatment of the overheated part in the cutting. And when the lower temperature part in the cutting groove contacts the gas, heat exchange is continuously carried out with the gas, so as to preheat the workpiece from the inner wall part of the cutting groove, so as to avoid too large a distance between the laser cutting part and the heat conduction mesh ring 3, which affects the preheating effect of the laser cutting part of the workpiece. Without affecting the laser cutting of the workpiece, the cutting position of the laser on the workpiece is changed by flipping the workpiece. At the same time, without affecting the preheating of the workpiece, the overheated part of the cutting groove is quickly cooled, so as to avoid heat accumulation in some cutting parts of the workpiece, resulting in too high a temperature and affecting the cutting effect of the workpiece. At the same time, the preheating operation of the workpiece is completed by the preheating of some parts of the workpiece near the cutting part of the workpiece by the air flow, ensuring the preheating temperature of the cutting part of the workpiece and having a good preheating effect; Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 7In the process of rapid flow of gas in the opening at the bottom of the diverter groove 9, the feeding mechanism 8 is driven to operate, and a small amount of steel sand is continuously fed into the airflow, and enters the cutting groove together with the airflow, thereby simulating the sandblasting operation and completing the preliminary grinding treatment of the inner wall of the cutting groove, thereby removing a small amount of slag or burrs on the inner wall of the cutting groove to a certain extent, which can greatly reduce the grinding time of the inner wall of the workpiece hole after the laser completes the workpiece cutting, thereby greatly improving the processing efficiency of the extrusion die.

[0026] In a further preferred embodiment of the present invention, Figure 3 As shown, the inner wall of the top opening of the installation groove 21 is set in an arc shape, and the inner bottom wall of the storage groove 22 is set in an arc shape with the periphery concave toward the center position; In this embodiment, please refer to Figure 3 and Figure 4 As shown, when the bottom of the workpiece is inserted into the top opening of the mounting groove 21, if the bottom end of the workpiece and the top opening of the mounting groove 21 are misaligned, since the outer annular surface of the bottom end of the workpiece and the arc surface of the top opening of the mounting groove 21 conflict with each other, the bottom end of the workpiece can slide along the arc surface of the top opening of the mounting groove 21, so that the bottom end automatically moves to the center position of the top opening of the mounting groove 21, which facilitates the installation and placement of the workpiece.

[0027] In a further preferred embodiment of the present invention, Figure 3 and Figure 4 As shown, the exhaust pipes 10 are divided into several groups and fixedly connected to the inner bottom wall of the mounting groove 21, and the distance between two adjacent exhaust pipes 10 in each group is equal; In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 As shown, corresponding groups of exhaust pipes 10 are provided according to the number of inner holes opened on the workpiece, and each group of exhaust pipes 10 is arranged according to the shape of the holes opened on the workpiece, so that the gas discharged from the exhaust pipes 10 can directly flow into the cutting groove, then flow in the cutting groove, and be discharged from the position between the exhaust pipes 10 corresponding to the bottom end of the cutting groove, and finally the gas discharged from the exhaust pipes 10 flows directly in the cutting groove.

[0028] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 6 As shown, the clamping mechanism 5 includes a driver 51, which is fixedly mounted on the top side of the stage 1, and a threaded rod 52 is fixedly mounted on the driving end thereof; The threaded cylinder 53 has an opening threaded sleeve at one end thereof which is arranged on the outer peripheral side of the corresponding threaded rod 52, and the outer peripheral wall thereof is in contact with the top side of the heat insulating cylinder 2; In this embodiment, please refer to Figure 1 , Figure 2 andFigure 6 As shown, after the workpiece is placed, the driver 51 starts to drive the threaded rod 52 to rotate forward by the corresponding number of turns. (The driver 51 is mainly composed of a housing, a motor gear transmission structure, and a drive shaft). The rotating threaded rod 52 pushes the threaded barrel 53 towards the workpiece, thereby completing the clamping and fixing operation of the threaded barrel 53. The device has a high degree of automation.

[0029] In a further preferred embodiment of the present invention, as Figure 5 and Figure 6 shown, an elastic pad 54 is fixedly installed at the other end of the threaded barrel 53, and the end of the elastic pad 54 close to the heat conduction mesh ring 3 is arranged in an arc shape. Honeycomb-shaped holes are provided inside the elastic pad 54; In this embodiment, please refer to Figure 5 and Figure 6 shown, when the threaded barrel 53 moves towards the workpiece, first the elastic pad 54 will contact the outer arc wall of the workpiece. (The elastic pad 54 can be made of elastic metal materials such as spring steel or stainless steel). Subsequently, as the threaded barrel 53 continues to rotate, the elastic pad 54 contracts and deforms, so that while the arc surface of the elastic pad 54 is in close contact with the outer arc wall of the workpiece, a large contact force is generated between the elastic pad 54 and the outer arc wall of the workpiece, and finally a great frictional force is generated between the elastic pad 54 and the workpiece to enhance the stability of the clamping and fixing of the threaded barrel 53 to the workpiece.

[0030] In a further preferred embodiment of the present invention, as Figure 1 , Figure 2 and Figure 6 shown, the flipping mechanism 6 includes a cam 61 with an elliptical cross-sectional shape, and the cam 61 is threadedly sleeved on the outer peripheral side of the corresponding threaded rod 52 and fixedly connected to one end of the corresponding threaded barrel 53; A rectangular groove 62 is opened on the top side of the carrier table 1, and the bottom of the cam 61 is inserted into the corresponding rectangular groove 62 and contacts the inner bottom wall of the corresponding rectangular groove 62; In this embodiment, please refer to Figure 1 , Figure 2 and Figure 6 shown, when the threaded rod 52 pushes the threaded barrel 53, due to the mutual contact between the cam 61 and the inner bottom wall of the rectangular groove 62, the threaded barrel 53 will not rotate together with the threaded rod 52; After the workpiece is clamped and fixed, due to the mutual resistance between the elastic pad 54 and the workpiece, the forward-rotating threaded cylinder 53 cannot continue to drive the threaded cylinder 53 to move towards the workpiece. At this time, due to the mutual resistance of the threads between the threaded rod 52 and the threaded cylinder 53, a great frictional force is generated between the threaded rod 52 and the threaded cylinder 53, and finally the threaded rod 52 and the threaded cylinder 53 are integrated into a whole. At this time, when the threaded rod 52 continues to rotate forward, it can drive the cam 61 to rotate together. Due to the mutual resistance between the cam 61 and the inner bottom wall of the rectangular groove 62, the workpiece can be lifted upward, the workpiece can be removed from the top opening of the installation groove 21, and the workpiece can be flipped synchronously. At the same time, the workpiece is inserted into the top opening of the installation groove 21 again, without setting an additional driving structure, reducing the production cost of the device; It should be noted that after the workpiece is inserted into the top opening of the installation groove 21, the top opening of the installation groove 21 can be blocked, so that a closed cavity is formed in the heat insulation cylinder 2, further avoiding the loss of heat in the heat insulation cylinder 2 and preventing the steel sand from flying out of the heat insulation cylinder 2; It should be noted that the arc surface of the inner wall of the opening of the storage tank 22 can leave space for the flipping of the workpiece, or the top side of the heat conduction mesh plate can be arranged coplanar with the top side of the carrier table 1, so that the workpiece will not contact with external objects during the flipping process.

[0031] In a further preferred embodiment of the present invention, as Figure 4 and Figure 7 shown, the air injection part 7 includes an air pump 71, which is fixedly installed on the inner top wall of the storage tank 22, and its exhaust port is communicated with the inside of the shunt groove 9. A filter cylinder 72 is sleeved on the outer peripheral side of the air pump 71, and the top end of the filter cylinder 72 is fixedly connected with the inner top wall of the storage tank 22; In this embodiment, please refer to Figure 4 shown, the air pump 71 is intermittently started to suck the gas in the storage tank 22 and inject the gas into the shunt groove 9; During this process, due to the blocking of the filter cylinder 72, the steel sand in the gas will be intercepted by the filter cylinder 72 and stored in the storage tank 22. Most of the steel sand will fall onto the inner bottom wall of the storage tank 22 due to its own gravity and slide along the inclined inner bottom wall of the storage tank 22, gathering at the bottom opening of the storage tank 22. When the air pump 71 stops running, the pressure difference inside and outside the filter cylinder 72 disappears, and the steel sand attached to the filter cylinder 72 will automatically fall due to the loss of the restraint of the adsorption force and gather at the bottom opening of the storage tank 22, facilitating the steel sand in the storage tank 22 to slide out of the storage tank 22.

[0032] In a further preferred embodiment of the present invention, as Figure 7 shown, the feeding mechanism 8 includes a filter cylinder 81, which is fixedly installed on the bottom side of the heat insulation cylinder 2, and the bottom inside it is filled with steel sand; A plurality of connecting pipes 82 are used to connect the inside of the shunt tank 9 with the inside of the second filter cartridge 81. The top of the connecting pipe 82 is inclined, and its top is located above the exhaust port of the air pump 71. The bottom end of the connecting pipe 82 extends to the bottom of the second filter cartridge 81 and is fixedly connected to the wall of the heat insulation cartridge 2. A plugging member 83, which is provided on the second filter cartridge 81 and is used to plug the bottom opening of the storage tank 22; In this embodiment, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, during the rapid flow of gas in the diverter trough 9, a pressure difference of corresponding strength can be generated at both ends of the connecting pipe 82, so that a small amount of steel sand in the filter cartridge 81 is continuously sucked into the airflow in the diverter trough 9 through the connecting pipe 82. The device has a high degree of automation and does not need to set up an additional driving structure, thereby reducing the production cost of the device. The connecting pipe 82 arranged at an angle on the top can prevent the steel sand from having a strong collision with the inner wall of the diverter trough 9, thereby affecting the driving of the steel sand by the airflow; When the air pump 71 stops running, the excess gas in the storage tank 22 flows into the filter cartridge 2 81 through the connecting pipe 82 to prevent the excessive gas pressure in the storage tank 22 from affecting the operation of the device after the device is used for a long time; It should be noted that, due to the high-speed airflow blowing into the cutting groove, steel sand or fine particles and the like will not adhere to the inner wall of the cutting groove to affect the cutting process of the workpiece.

[0033] In a further preferred embodiment of the present invention, Figure 7 As shown, the blocking member 83 includes a sealing plate 831, which is arranged at the bottom side of the bottom opening of the storage tank 22; The electric control telescopic rod 832 is fixedly mounted at the center of the bottom end of the second filter cartridge 81, and the push rod of the electric control telescopic rod 832 slides through the wall of the second filter cartridge 81 and is fixedly connected to the sealing plate 831; In this embodiment, please refer to Figure 7 As shown, when the air pump 71 stops running and performs the workpiece flipping operation, the electrically controlled telescopic rod 832 starts, pulling the sealing plate 831 downward to release the closed state of the bottom opening of the storage tank 22. At this time, the steel sand in the storage tank 22 falls into the filter cartridge 81 for reuse from the bottom opening of the storage tank 22. Subsequently, the electrically controlled telescopic rod 832 is stretched, causing the sealing plate 831 to move up to re-seal the bottom opening of the storage tank 22, so as to avoid the interior of the storage tank 22 being connected to the interior of the filter cartridge 81 and affecting the absorption of the steel sand.

[0034] In a further preferred embodiment of the present invention, Figure 7As shown, the top side of the sealing plate 831 and the inner bottom wall of the second filter cartridge 81 are both arranged in an arc shape that bulges from the outer periphery towards the center position, and the arc surface on the top side of the sealing plate 831 is in contact with the inner wall of the bottom opening of the storage tank 22; In this embodiment, please refer to Figure 7 As shown, the arc-shaped setting of the top side of the sealing plate 831 enables the steel sand on the top side of the sealing plate 831 to quickly slide down along the inclined surface on the top side of the sealing plate 831 into the second steel sand, reducing the time for the steel sand in the storage tank 22 to slide into the second filter cartridge 81; The inclined surface setting of the inner bottom wall of the second filter cartridge 81 enables the steel sand at other positions on the inner bottom wall of the second filter cartridge 81 to slide along the inclined inner bottom wall of the second filter cartridge 81 automatically to the position at the bottom end of the connecting pipe 82 after the steel sand at the bottom end of the connecting pipe 82 is sucked away, that is, after the steel sand outside the inner bottom wall of the second filter cartridge 81 is sucked away, so as to avoid the distance between the bottom end of the connecting pipe 82 and the steel sand being too far and affecting the suction of the steel sand by the connecting pipe 82.

[0035] Working principle: When the improved laser cutting device processes the extrusion die, first insert the bottom of the workpiece into the top opening of the installation groove 21 until the bottom side of the workpiece contacts the heat-conducting mesh ring 3. Due to the support of the heat-conducting mesh ring 3 for the workpiece and the mutual resistance between the bottom end of the workpiece and the top opening of the installation groove 21, the workpiece is stably placed at the corresponding position on the carrier 1. Subsequently, start the driver 51 to drive the threaded rod 52 to rotate forward by the corresponding number of turns. Since the cam 61 is in mutual contact with the inner bottom wall of the rectangular groove 62, the threaded barrel 53 will not rotate together with the threaded rod 52. At this time, the rotating threaded rod 52 pushes the threaded barrel 53 towards the workpiece until the arc surface of the elastic pad 54 fits the outer arc wall of the workpiece. Subsequently, due to the gradual contraction and deformation of the elastic pad 54 under the extrusion of the threaded barrel 53 and the workpiece, until the elastic pad 54 shrinks to the limit. At this time, a large frictional force is generated between the elastic pad 54 and the outer arc wall of the workpiece, and the clamping and fixing of the workpiece are completed; After the installation of the workpiece is completed, the heating element 4 is started to heat the heat-conducting mesh ring 3 until the temperature of the heat-conducting mesh ring 3 reaches the threshold value. At this time, the heat-conducting mesh ring 3 and the workpiece continuously exchange heat to complete the preheating treatment of the workpiece; After the heating time at the bottom of the workpiece is reached, the driver 51 continues to drive the threaded rod 52 to rotate forward by 180 degrees. At this time, due to the mutual resistance between the elastic pad 54 and the workpiece, the threaded barrel 53 that rotates forward cannot continue to drive the threaded barrel 53 to move towards the workpiece. At this time, due to the mutual resistance of the threads between the threaded rod 52 and the threaded barrel 53, a great frictional force is generated between the threaded rod 52 and the threaded barrel 53, and finally the threaded rod 52 and the threaded barrel 53 are connected into a whole. At this time, the forward rotation of the threaded rod 52 can drive the cam 61 to rotate together. Due to the mutual resistance between the cam 61 and the inner bottom wall of the rectangular groove 62, the workpiece can be lifted upward, the workpiece is removed from the top opening of the installation groove 21, and the flipping of the workpiece is completed synchronously. At the same time, the workpiece is inserted into the top opening of the installation groove 21 again to complete the flipping of the workpiece. Thus, through the intermittent flipping of the workpiece, the preheated end of the workpiece is adjusted to the bottom side of the laser cutting mechanism, and the laser cutting process of the workpiece is carried out synchronously from both sides of the workpiece; When the workpiece is subjected to laser cutting operation, the air pump 71 starts to continuously suck the gas in the storage tank 22 and injects the gas into the shunt groove 9 and then discharges it through the exhaust pipe 10. The high-speed air flow discharged from the exhaust pipe 10 is directly injected into the cutting groove of the workpiece, then flows out from the cutting groove, passes through the holes of the heat conduction mesh ring 3, flows into the installation groove 21, and finally flows back into the storage tank 22 through the connection holes, so as to form an internal gas circulation in the heat insulation cylinder 2. And when the gas passes through the holes of the heat conduction mesh ring 3, the gas exchanges heat with the heat conduction mesh ring 3 to heat the gas; During the rapid flow of the gas in the cutting groove, when it contacts the overheated part in the cutting groove, it continuously exchanges heat with the gas, so as to complete the cooling treatment of the overheated part inside the cutting. And when it contacts the part with a lower temperature in the cutting groove, it continuously exchanges heat with the gas, so as to preheat the workpiece from the inner wall part of the cutting groove, accelerate the preheating rate of the cutting part of the workpiece, and ensure the preheating effect of the cutting part of the workpiece; During the rapid flow of the gas in the bottom opening of the shunt groove 9, due to the Bernoulli principle, a corresponding intensity of pressure difference is generated at both ends of the connecting pipe 82, so that a small amount of steel sand in the filter cylinder II 81 is continuously sucked into the air flow in the shunt groove 9 through the connecting pipe 82 and enters the cutting groove together with the high-speed air flow. Through the sandblasting and grinding operation, a small amount of slag or burrs on the inner wall of the cutting groove are removed to complete the preliminary grinding treatment of the inner wall of the cutting groove; During the process of the gas circulating and flowing in the heat insulation cylinder 2, due to the blocking of the filter cylinder I 72, the steel sand in the gas is intercepted and stored in the storage tank 22, and most of the steel sand falls onto the inner bottom wall of the storage tank 22 due to its own gravity and slides along the inclined inner bottom wall of the storage tank 22 and gathers at the bottom opening of the storage tank 22; When the workpiece is flipped, the air pump 71 stops running, causing the steel sand attached to the filter cartridge 1 72 to fall onto the inner bottom wall of the storage tank 22. At the same time, the electrically controlled telescopic rod 832 is started, pulling the sealing plate 831 downward to release the closed state of the bottom opening of the storage tank 22, and the steel sand falls from the bottom opening of the storage tank 22 into the filter cartridge 2 81 for reuse. Subsequently, the electrically controlled telescopic rod 832 is stretched, causing the sealing plate 831 to move up to re-seal the bottom opening of the storage tank 22.

[0036] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A laser cutting device for extrusion die processing, characterized in that: include: The loading platform (1) has a heat-insulating tube (2) fixedly installed in the middle of the top side thereof, and the heat-insulating tube (2) is provided with a mounting groove (21) and a storage groove (22) connected by a plurality of connecting holes from top to bottom. A heat-conducting mesh ring (3) is arranged in the mounting groove (21), a heating element (4) is fixedly mounted on the bottom side of the heat-conducting mesh ring (3), and the bottom side of the heating element (4) is fixedly connected to the inner wall of the mounting groove (21); Two clamping mechanisms (5) are arranged on the outer peripheral side of the heat-insulating cylinder (2) and are used to clamp and fix the workpiece. The outer peripheral side of the two clamping mechanisms (5) is provided with a turning mechanism (6) for turning and adjusting the workpiece. A diverter groove (9) is provided in the wall of the middle part of the heat-insulating cylinder (2); a plurality of exhaust pipes (10) are provided above the diverter groove (9); and the interior of each exhaust pipe (10) is communicated with the interior of the diverter groove (9); A gas injection component (7) is arranged in the storage tank (22) and is used to absorb gas in the storage tank (22) and inject the gas into the diversion tank (9). A feeding mechanism (8) is arranged on the outside of the gas injection component (7) and is used to feed steel grit into the gas flow discharged from the gas injection component (7).

2. The laser cutting device for extrusion die processing according to claim 1, characterized in that: The inner wall of the top opening of the installation groove (21) is arranged in an arc shape, and the inner bottom wall of the storage groove (22) is arranged in an arc shape with the periphery concave toward the center.

3. The laser cutting device for extrusion die processing according to claim 2, characterized in that: The plurality of exhaust pipes (10) are divided into a plurality of groups and fixedly connected to the inner bottom wall of the mounting groove (21), and the spacing between two adjacent exhaust pipes (10) in each group is equal.

4. The laser cutting device for extrusion die processing according to claim 3, characterized in that: The clamping mechanism (5) comprises a driver (51) which is fixedly mounted on the top side of the stage (1), and a threaded rod (52) is fixedly mounted on the driving end thereof; The threaded cylinder (53) has an opening threaded sleeve at one end thereof disposed on the outer peripheral side of the corresponding threaded rod (52), and its outer peripheral wall is in contact with the top side of the heat insulating cylinder (2).

5. The laser cutting device for extrusion die processing according to claim 4, characterized in that: An elastic pad (54) is fixedly mounted on the other end of the threaded cylinder (53), and one end of the elastic pad (54) close to the heat-conducting mesh ring (3) is arranged in an arc shape, and honeycomb-shaped holes are provided inside the elastic pad (54).

6. The laser cutting device for extrusion die processing according to claim 5, characterized in that: The turning mechanism (6) comprises a cam (61) having an elliptical cross-section, and the cam (61) is threadedly sleeved on the outer peripheral side of the corresponding threaded rod (52) and fixedly connected to one end of the corresponding threaded cylinder (53); A rectangular groove (62) is provided on the top side of the loading platform (1), and the bottom of the cam (61) is inserted into the corresponding rectangular groove (62) and contacts the inner bottom wall of the corresponding rectangular groove (62).

7. The laser cutting device for extrusion die processing according to claim 6, characterized in that: The gas injection component (7) comprises an air pump (71) which is fixedly mounted on the inner top wall of the storage tank (22), and whose exhaust port is communicated with the interior of the diversion tank (9); a filter cartridge (72) is sleeved on the outer peripheral side of the air pump (71), and the top end of the filter cartridge (72) is fixedly connected to the inner top wall of the storage tank (22).

8. The laser cutting device for extrusion die processing according to claim 7, characterized in that: The feeding mechanism (8) comprises a second filter cartridge (81) which is fixedly mounted on the bottom side of the heat-insulating cartridge (2) and has a bottom filled with steel sand; A plurality of connecting pipes (82) for connecting the interior of the diverter trough (9) with the interior of the second filter cartridge (81); the top of the connecting pipe (82) is arranged in an inclined shape, and the top end thereof is located above the exhaust port of the air pump (71); the bottom end of the connecting pipe (82) extends to the bottom of the second filter cartridge (81) and is fixedly connected to the wall of the heat insulating cartridge (2); A sealing member (83) is provided on the second filter cartridge (81) and is used to seal the bottom opening of the storage tank (22).

9. The laser cutting device for extrusion die processing according to claim 8, characterized in that: The blocking member (83) comprises a sealing plate (831) which is arranged on the bottom side of the bottom opening of the storage tank (22); The electrically controlled telescopic rod (832) is fixedly mounted at the center position of the bottom end of the second filter cartridge (81), and the push rod of the electrically controlled telescopic rod (832) slides through the wall of the second filter cartridge (81) and is fixedly connected to the sealing plate (831).

10. The laser cutting device for extrusion die processing according to claim 9, characterized in that: The top side of the sealing plate (831) and the inner bottom wall of the second filter cartridge (81) are both arranged in an arc-shaped shape that bulges from the outer peripheral side toward the center position, and the top side arc surface of the sealing plate (831) is connected to the inner wall of the bottom end opening of the storage tank (22).

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