Laser cutting device and cutting method using CCD positioning

Abstract

The present invention relates to the field of laser cutting technology, and specifically discloses a laser cutting device and cutting method using CCD positioning, comprising a fixed box and a laser cutting head, wherein the laser cutting head is movably mounted on one side of the fixed box, a mesh frame is mounted on the top of the fixed box, both ends and the top of both sides of the fixed box are provided with fixing mechanisms, and two second fixed plates are movably mounted inside the fixed box. The present invention is provided with a fixed column, a movable cylinder and a pressure sensor. During the cutting process of the plate, a fixed column moves to the bottom of the plate and makes the top of the support ring abut against the bottom of the plate. Then, after the circular hole on the plate is cut, the fallen circular piece can fall from the support ring into the interior of the movable cylinder. The collection and storage of cutting waste can be completed through the movable cylinder, which is convenient for the subsequent processing and reuse of the circular piece, thereby increasing the convenience of use of the device.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting technology, and in particular to a laser cutting device and a cutting method using CCD positioning. Background Art

[0002] Laser cutting involves focusing laser light emitted from a laser source into a high-power, high-density beam through an optical system. The laser beam strikes the workpiece surface, causing it to reach its melting or boiling point. Simultaneously, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the beam and workpiece move relative to each other, a slit is formed in the material, achieving the desired cutting effect. CCD-positioned laser cutting is an advanced processing method that combines CCD (charge-coupled device) vision positioning technology with laser cutting techniques.

[0003] Currently, in the process of cutting the plate, the cut waste generally falls directly and is then discarded. However, circular pieces fall during the cutting process of the plate, which can be processed and reused. Therefore, mixing them with other waste will cause material waste. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a laser cutting device and a cutting method using CCD positioning.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A laser cutting device and cutting method using CCD positioning include a fixed box and a laser cutting head, wherein the laser cutting head is movably mounted on one side of the fixed box, a screen frame is mounted on the top of the fixed box, fixing mechanisms are provided at both ends and the top of both sides of the fixed box, a plurality of second fixing plates are movably mounted inside the fixed box, a plurality of fixing columns are movably mounted on the top of the second fixing plates, a fourth slot is provided on the top of the fixing column, a movable cylinder is provided inside the fourth slot, an auxiliary mechanism is provided on the outside of the fixing column, and a detection mechanism is provided on the top of the fixing column.

[0007] Preferably, an electric lifting rod is installed on one side of the fixed box, the lifting end of the electric lifting rod faces upward, and a first support rod is installed on the lifting end of the electric lifting rod. A first slot is provided on the top of the first support rod, and a threaded rod is rotatably installed inside the first slot. A first rotating motor is installed at one end of the first support rod, and the output end of the first rotating motor movably passes through the end wall of the first support rod and is connected to the threaded rod. A fixed slider is slidably installed inside the first slot, and the thread of the threaded rod passes through the fixed slider. An electric extension rod is horizontally installed on the top of the fixed slider, and the extended end of the electric extension rod faces the fixed box, and the laser cutting head is connected to the extended end of the electric extension rod on the side close to the electric extension rod.

[0008] Preferably, the fixing mechanism includes a first fixed plate and a first movable plate, and the first electric telescopic rod is embedded and installed at both ends and the top of both sides of the fixed box, the telescopic end of the first electric telescopic rod faces upward, and the telescopic end of the first electric telescopic rod is installed with the first fixed plate, and the second electric telescopic rod is embedded and installed on the side of the first fixed plate facing the net frame, the telescopic end of the second electric telescopic rod faces the net frame, and the telescopic end of the second electric telescopic rod is installed with the first movable plate.

[0009] Preferably, a first sliding groove is opened at the inner bottom end of the fixed box, a first electric slider is installed at the bottom of the second fixed plate, and the first electric slider is slidably installed inside the first sliding groove.

[0010] Preferably, a second sliding groove is horizontally opened on the top of the second fixed plate along the length direction, and a second electric slider is installed at the bottom of the fixed column, and the second electric slider is slidably installed inside the second sliding groove.

[0011] Preferably, a second slot is provided at the bottom of the fixed column, a third electric telescopic rod is installed at the top of the inner wall of the second slot, the mounting end of the third electric telescopic rod faces downward, a second rotary motor is provided below the third electric telescopic rod, the output end of the second rotary motor is connected to the mounting end of the third electric telescopic rod, and the mounting end of the second rotary motor is connected to the second electric slider.

[0012] Preferably, the auxiliary mechanism includes a movable ring and a suction cup, the movable ring is movably installed on the outer side of the fixed column, and the suction cup is installed on the top of the movable ring.

[0013] Preferably, two third slide grooves are evenly and vertically provided on the outer side of the fixed column, a third electric slider is installed on the inner wall of the movable ring near the third slide groove, the third electric slider is slidably installed inside the third slide groove, two movable grooves are evenly and vertically provided on the outer side of the fixed column, the movable groove is connected to the fourth slot, a fourth electric telescopic rod is embedded and installed on the inner wall of the movable ring near the movable groove, the telescopic end of the fourth electric telescopic rod faces the movable cylinder, and a rubber block is provided at the telescopic end of the fourth electric telescopic rod.

[0014] Preferably, the detection mechanism includes a support ring, a spring telescopic rod and a pressure sensor. Two third slots are evenly arranged on the top of the fixed column, and a pressure sensor is installed at the bottom end of the inner wall of the third slot. A support ring is provided on the top of the fixed column, and a spring telescopic rod is installed on the support ring near the bottom of the third slot. The spring telescopic rod is slidably installed inside the third slot, and one end of the spring telescopic rod close to the pressure sensor is connected to the pressure sensor.

[0015] Preferably, a laser cutting method using CCD positioning includes the above-mentioned cutting device, and the cutting method further includes the following steps:

[0016] Step 1: When it is necessary to cut the plate, the staff first uses an embroidery needle to clear the nozzle of the laser cutting head, and then the staff places the plate on the top of the screen frame, and fixes the plate through the first fixed plate and the first movable plate. Then, the CCD visual positioning device on the laser cutting head is used to position the plate on the screen frame. If the positioning result shows that the plate is placed crookedly, the fixed column extends upward, and the movable ring slides upward on the outside of the fixed column. The suction cup abuts the bottom of the plate and absorbs the plate, and then the fixed column is rotated to adjust the angle of the plate. The first movable plate descends on the outside of the plate to the same horizontal height as the bottom of the plate. The first movable plate pushes the plate, and the placement position of the plate can be adjusted. The position of the plate is adjusted by the suction cup and the first movable plate so that the plate meets the cutting position requirements.

[0017] Step 2: Adjust the focus height of the laser cutting head. After adjustment, the staff will test it. The staff will test the height of the laser cutting head. The test method is to pass A4 paper between the plate and the laser cutting head. Then the A4 paper can be pulled, and there is resistance when pulling the A4 paper. The resistance is the weight of a gel pen. At this time, it means that the height of the laser cutting head is adjusted in place. The height test of the laser cutting head is completed. The laser cutting head cuts the plate. The background control system cuts the plate in an orderly manner according to the preset cutting order according to the cutting requirements;

[0018] Step 3: After the plate is cut, the first fixed plate and the first movable plate no longer fix the plate, and the third electric telescopic rod is extended upward, so that the support ring passes through the mesh of the screen frame and lifts the cut plate upward. The plate is lifted to a preset height position, which makes it convenient for the unloading robot preset outside the device to grab and unload the plate;

[0019] Step 4: Before the device cuts the plate, all four fixed columns extend upward to a preset height and abut the bottom of the plate. At this time, the support ring presses the spring telescopic rod downward, and the spring telescopic rod presses the pressure sensor. The pressure sensor transmits the measured pressure value to the background control system. The background control system compares multiple pressure values and detects the flatness of the plate by comparing the differences between the multiple pressure values.

[0020] Step 5: During the cutting process of the plate, a fixed column moves to the bottom of the plate cutting position, and makes the top of the support ring abut against the bottom of the plate. Then, when the circular hole on the plate is cut, the fallen circular piece can fall from the support ring into the interior of the movable cylinder. The movable cylinder can collect and store the cutting waste, which is convenient for subsequent processing and reuse of the circular piece.

[0021] Step 6: After the plate is cut, a fixed column moves upward and makes the support ring touch the bottom of the plate. Then the fixed column continues to move upward so that the pressure sensor reaches the preset pressure value. At this time, by observing the state changes of the squeezed part of the plate, the extrusion resistance test of the finished plate can be completed.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention is provided with a fixed column, a movable cylinder and a pressure sensor. During the process of cutting the plate, a fixed column moves to the bottom of the plate cutting position and makes the top of the support ring abut against the bottom of the plate. Then, when the circular hole on the plate is cut, the fallen circular piece can fall from the support ring into the interior of the movable cylinder. The movable cylinder can complete the collection and storage of cutting waste, facilitate the subsequent processing and reuse of the circular piece, and increase the convenience of use of the device.

[0024] After the plate is cut, the first fixed plate and the first movable plate move away from the plate, so that the first fixed plate and the first movable plate no longer fix the plate, and then the second fixed plate and the fixing column move to the preset position, and then the third electric telescopic rod extends upward, so that the support ring passes through the mesh of the screen frame and lifts the cut plate upward. When the plate is lifted to a preset height, it is convenient for a blanking robot preset outside the device to grab and unload the plate, thereby increasing the convenience of use of the device;

[0025] Before the device cuts the plate, after the plate is adjusted and fixed, the four fixing columns all move to the preset positions, and then the fixing columns extend upward to the preset height position. The support ring passes through the mesh of the screen frame so that the top of the support ring abuts the bottom of the plate. At this time, the support ring presses the spring telescopic rod downward, and the spring telescopic rod presses the pressure sensor. The pressure sensor transmits the measured pressure value to the background control system. The background control system compares multiple pressure values and detects the flatness of the plate by comparing the differences between the multiple pressure values, so that the quality of the finished plate is guaranteed;

[0026] After the plate is cut, a fixed column moves upward and makes the support ring abut the bottom of the plate. Then the fixed column continues to move upward so that the pressure sensor reaches the preset pressure value. At this time, by observing the state changes of the squeezed part of the plate, the extrusion resistance test of the finished plate can be completed, so that the quality of the finished plate is guaranteed and the convenience of using the device is increased.

[0027] The present invention is provided with a movable ring, a suction cup, a first fixed plate and a first movable plate. The staff places the plate on the top of the screen frame, and fixes the plate through the first fixed plate and the first movable plate, so as to fix the plate and increase the cutting stability of the plate. If the positioning result shows that the plate is placed crookedly, the suction cup passes through the mesh of the screen frame and abuts the bottom of the plate. At this time, the suction cup absorbs the plate, and then the first movable plate moves away from the plate, and the first movable plate no longer fixes the plate. The second rotating motor drives the fixed column to rotate, so that the angle of the plate can be adjusted, thereby adjusting the placement angle of the plate. The first movable plate pushes the plate, and the placement position of the plate can be adjusted. The position of the plate is adjusted by the suction cup and the first movable plate so that the plate meets the cutting position requirements.

[0028] When the circular pieces inside the movable cylinder are collected to a preset amount, and there is no plate to be processed on the top of the screen frame, the fixed column moves upward and passes through the grid of the screen frame, and the fourth electric telescopic rod extends so that the telescopic end of the fourth electric telescopic rod abuts the outer side of the movable cylinder. At this time, the movable cylinder can be lifted upward by moving the movable ring upward until the movable cylinder moves out of the fourth slot and moves to a preset height position. At this time, the staff manually or by means of a manipulator provided on the outside of the device takes out the movable cylinder, and then the staff puts a new movable cylinder into the fourth slot.

[0029] When the movable cylinder takes over the waste circular pieces, the fourth electric telescopic rod abuts against the movable cylinder and then moves up and down, so that the bottom of the movable cylinder can hit the bottom of the fourth slot. The vibration generated by the impact prevents the circular pieces inside the movable cylinder from being affected by the movable cylinder's collection of the circular pieces due to tilted placement, thereby increasing the functional stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0032] Figure 3 This is a schematic diagram of the installation structure of the first electric telescopic rod of the present invention;

[0033] Figure 4 This is a schematic diagram of the installation structure of the first fixed plate and the first movable plate of the present invention;

[0034] Figure 5 This is a schematic diagram of the installation structure of the second electric telescopic rod of the present invention;

[0035] Figure 6This is a schematic diagram of the second fixing plate installation structure of the present invention;

[0036] Figure 7 It is a schematic diagram of the fixed column structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the installation structure of the second rotating electrical machine of the present invention;

[0038] Figure 9 This is a schematic diagram of the installation structure of the second rotating motor and the third electric telescopic rod of the present invention;

[0039] Figure 10 This is a schematic diagram of the movable ring installation structure of the present invention;

[0040] Figure 11 This is a schematic diagram of the pressure sensor installation structure of the present invention;

[0041] Figure 12 This is a schematic diagram of the installation structure of the support ring and the spring telescopic rod of the present invention;

[0042] Figure 13 It is a schematic diagram of the movable cylinder structure of the present invention.

[0043] In the figure: 1. fixed box; 2. screen frame; 3. first fixed plate; 4. first movable plate; 5. electric lifting rod; 6. first support rod; 7. first slot; 8. threaded rod; 9. first rotating motor; 10. electric extension rod; 11. laser cutting head; 12. fixed slider; 14. first electric telescopic rod; 15. second electric telescopic rod; 16. first slide; 17. first electric slider; 18. second fixed plate; 19. fixed column; 20. second slide; 21. second electric slider; 22. movable ring; 23. suction cup; 24. support ring; 25. spring telescopic rod; 26. second slot; 27. second rotating motor; 28. third slide; 29. third electric slider; 30. movable cylinder; 31. movable slot; 32. third electric telescopic rod; 33. fourth electric telescopic rod; 34. third slot; 35. pressure sensor; 36. fourth slot. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Reference Figure 1-13A laser cutting device using CCD positioning includes a fixed box 1 and a laser cutting head 11. The laser cutting head 11 is movably mounted on one side of the fixed box 1. A screen frame 2 is mounted on the top of the fixed box 1. Fixing mechanisms are provided at both ends and the top of both sides of the fixed box 1. A plurality of second fixing plates 18 are movably mounted inside the fixed box 1. A plurality of fixing columns 19 are movably mounted on the top of the second fixing plates 18. A fourth slot 36 is provided on the top of the fixing column 19. A movable cylinder 30 is provided inside the fourth slot 36. An auxiliary mechanism is provided on the outside of the fixing column 19. A detection mechanism is provided on the top of the fixing column 19. The laser cutting head 11 can be used to cut the sheet material. The fixing mechanism can fix the sheet material to increase the cutting stability of the sheet material. The auxiliary mechanism can adjust the placement angle of the sheet material. The fixed column 19 and the movable cylinder 30 can collect and store the circular pieces cut from the sheet material. The detection mechanism can detect the flatness and anti-extrusion force of the sheet material.

[0046] As a technical optimization solution of the present invention, an electric lifting rod 5 is installed on one side of the fixed box 1, and the lifting end of the electric lifting rod 5 faces upward. A first support rod 6 is installed on the lifting end of the electric lifting rod 5. A first slot 7 is opened on the top of the first support rod 6. A threaded rod 8 is rotatably installed inside the first slot 7. A first rotating motor 9 is installed at one end of the first support rod 6. The output end of the first rotating motor 9 movably passes through the end wall of the first support rod 6 and is connected to the threaded rod 8. A fixed slider 12 is slidably installed inside the first slot 7. The threaded rod 8 threads through the fixed slider 12. An electric extension rod 10 is horizontally installed on the top of the fixed slider 12. The extended end of the electric extension rod 10 faces the fixed box 1, and the laser cutting head 11 is connected to the extended end of the electric extension rod 10 on the side close to the electric extension rod 10. The electric lifting rod 5 can drive the first support rod 6 to move up and down, so that the height of the laser cutting head 11 can be adjusted. The first rotating motor 9 drives the threaded rod 8 to rotate, so that the fixed slider 12 can move on the first support rod 6, thereby driving the electric extension rod 10 to move. The extension of the electric extension rod 10 can drive the laser cutting head 11 to move. Through these operating methods, the laser cutting head 11 can cut any position of the plate in an orderly manner, which increases the convenience of using the device.

[0047] As a technical optimization solution of the present invention, the fixing mechanism includes a first fixed plate 3 and a first movable plate 4. First electric telescopic rods 14 are embedded and installed at both ends and the top of both sides of the fixed box 1. The telescopic end of the first electric telescopic rod 14 faces upward, and the telescopic end of the first electric telescopic rod 14 is installed with the first fixed plate 3. A second electric telescopic rod 15 is embedded and installed on the side of the first fixed plate 3 facing the screen frame 2. The telescopic end of the second electric telescopic rod 15 faces the screen frame 2, and the telescopic end of the second electric telescopic rod 15 is installed with the first movable plate 4. The first electric telescopic rod 14 drives the first fixed plate 3 to extend upward. After the first fixed plate 3 is extended to a preset height position, the second electric telescopic rod 15 drives the first movable plate 4 to extend toward the screen frame 2. After the first movable plate 4 is extended to the preset position, the first electric telescopic rod 14 drives the first fixed plate 3 to move downward until the bottom of the first movable plate 4 abuts the top of the plate. This operation method can complete the fixing of the plate, increasing the convenience of use of the device.

[0048] As a technical optimization solution of the present invention, a first chute 16 is defined at the bottom of the fixed box 1. A first electric slider 17 is mounted on the bottom of the second fixed plate 18. The first electric slider 17 is slidably mounted within the first chute 16. The sliding movement of the first electric slider 17 within the first chute 16 allows the second fixed plate 18 to move within the fixed box 1.

[0049] As a technical optimization solution of the present invention, a second chute 20 is horizontally defined along the length of the top of the second fixed plate 18. A second electric slider 21 is mounted at the bottom of the fixed column 19. The second electric slider 21 slides within the second chute 20. The sliding movement of the second electric slider 21 within the second chute 20 allows the fixed column 19 to move on top of the second fixed plate 18.

[0050] As a technical optimization solution of the present invention, a second slot 26 is formed at the bottom of the fixed column 19. A third electric telescopic rod 32 is mounted on the top of the inner wall of the second slot 26. The mounting end of the third electric telescopic rod 32 faces downward. A second rotary motor 27 is disposed below the third electric telescopic rod 32. The output end of the second rotary motor 27 is connected to the mounting end of the third electric telescopic rod 32, and the mounting end of the second rotary motor 27 is connected to the second electric slider 21. The second rotary motor 27 can drive the fixed column 19 to rotate, and the third electric telescopic rod 32 can drive the fixed column 19 to rise and fall, allowing the fixed column 19 to switch to the corresponding usage state according to usage requirements, thereby increasing the convenience of use of the device.

[0051] As a technical optimization solution of the present invention, the auxiliary mechanism includes a movable ring 22 and a suction cup 23. The movable ring 22 is movably mounted on the outside of the fixed column 19, and the suction cup 23 is mounted on the top of the movable ring 22. The movement of the movable ring 22 outside the fixed column 19 drives the suction cup 23 to abut and absorb the plate. Combined with the rotation of the fixed column 19, the angle of the plate placement can be adjusted, increasing the convenience of use of the device.

[0052] As a technical optimization solution of the present invention, two third slide grooves 28 are evenly and vertically opened on the outer side of the fixed column 19, and a third electric slider 29 is installed on the inner wall of the movable ring 22 near the third slide groove 28. The third electric slider 29 is slidably installed inside the third slide groove 28. Two movable grooves 31 are evenly and vertically opened on the outer side of the fixed column 19. The movable groove 31 is connected to the fourth slot 36. A fourth electric telescopic rod 33 is embedded and installed on the inner wall of the movable ring 22 near the movable groove 31. The telescopic end of the fourth electric telescopic rod 33 faces the movable cylinder 30, and the telescopic end of the fourth electric telescopic rod 33 is provided with a rubber block. When the circular pieces inside the movable cylinder 30 are collected to a preset amount, and there is no plate to be processed on the top of the screen frame 2, the fixed column 19 moves upward and passes through the grid of the screen frame 2, and the fourth electric telescopic rod 33 extends so that the telescopic end of the fourth electric telescopic rod 33 abuts the outer side of the movable cylinder 30. At this time, the movable cylinder 30 can be lifted upward by moving the movable ring 22 upward until the movable cylinder 30 moves out of the fourth slot 36 and moves to a preset height position. At this time, the staff manually or by means of a robot provided on the outside of the device removes the movable cylinder 30, and then the staff puts a new movable cylinder 30 into the fourth slot 36.

[0053] When the movable cylinder 30 receives the waste circular pieces, the fourth electric telescopic rod 33 abuts against the movable cylinder 30 and then moves up and down, so that the bottom of the movable cylinder 30 hits the bottom of the fourth slot 36. The vibration generated by the impact prevents the circular pieces inside the movable cylinder 30 from being affected by the tilted placement, thereby increasing the functional stability of the device.

[0054] As a technical optimization solution of the present invention, the detection mechanism includes a support ring 24, a spring telescopic rod 25 and a pressure sensor 35. Two third slots 34 are evenly arranged on the top of the fixed column 19, and the pressure sensor 35 is installed at the bottom end of the inner wall of the third slot 34. The top of the fixed column 19 is provided with a support ring 24, and the support ring 24 is provided with a spring telescopic rod 25 near the bottom of the third slot 34. The spring telescopic rod 25 is slidably installed inside the third slot 34, and the end of the spring telescopic rod 25 close to the pressure sensor 35 is connected to the pressure sensor 35. Before the device cuts the plate, after the plate is adjusted and fixed, the four fixed columns 19 all move to the preset position, and then the fixed columns 19 extend upward to the preset height position, and the support ring 24 passes through the mesh of the screen frame 2, so that the top of the support ring 24 abuts the bottom of the plate. At this time, the support ring 24 squeezes the spring telescopic rod 25 downward, and the spring telescopic rod 25 squeezes the pressure sensor 35. The pressure sensor 35 transmits the measured pressure value to the background control system. The background control system compares multiple pressure values, and by comparing the differences between multiple pressure values, it detects the flatness of the plate, so that the quality of the finished product of the plate is guaranteed.

[0055] After the plate is cut, a fixed column 19 moves upward, and the support ring 24 abuts the bottom of the plate. Then the fixed column 19 continues to move upward, so that the pressure sensor 35 reaches the preset pressure value. At this time, by observing the state change of the squeezed part of the plate, the anti-extrusion force test of the finished plate can be completed, so that the quality of the finished plate is guaranteed, and the convenience of use of the device is increased.

[0056] As a technical optimization solution of the present invention, a laser cutting method using CCD positioning is provided, the cutting method includes the above-mentioned cutting device, and the cutting method further includes the following steps:

[0057] Step 1: When it is necessary to cut the plate, the staff first uses an embroidery needle to pass through the nozzle of the laser cutting head 11, and then the staff places the plate on the top of the screen frame 2, and fixes the plate through the first fixed plate 3 and the first movable plate 4. Then, the CCD visual positioning device on the laser cutting head 11 is used to position the plate on the screen frame 2. If the positioning result shows that the plate is placed crookedly, the fixed column 19 extends upward, and the movable ring 22 slides upward on the outside of the fixed column 19. The suction cup 23 abuts the bottom of the plate and absorbs the plate, and then the fixed column 19 is rotated to adjust the angle of the plate. The first movable plate 4 drops to the outside of the plate and is at the same horizontal height as the bottom of the plate. The first movable plate 4 pushes the plate, and the placement position of the plate can be adjusted. The position of the plate is adjusted by the suction cup 23 and the first movable plate 4 so that the plate meets the cutting position requirements;

[0058] Step 2: Adjust the focus height of the laser cutting head 11. After the adjustment, the staff will test it. The staff will test the height of the laser cutting head 11. The test method is to pass an A4 paper between the plate and the laser cutting head 11. The A4 paper can then be pulled, and there is resistance when the A4 paper is pulled. The resistance is the weight of a gel pen. At this time, it means that the height of the laser cutting head 11 is adjusted in place. The height test of the laser cutting head 11 is completed. The laser cutting head 11 cuts the plate, and the background control system cuts the plate in an orderly manner according to the preset cutting order according to the cutting requirements;

[0059] Step 3: After the sheet is cut, the first fixed plate 3 and the first movable plate 4 no longer fix the sheet, and the third electric telescopic rod 32 is extended upward, so that the support ring 24 passes through the mesh of the screen frame 2 and lifts the cut sheet upward. The sheet is lifted to a preset height position, which makes it convenient for the unloading robot preset outside the device to grab and unload the sheet;

[0060] Step 4: Before the device cuts the plate, the four fixing columns 19 are all extended upward to a preset height and abut the bottom of the plate. At this time, the support ring 24 presses the spring telescopic rod 25 downward, and the spring telescopic rod 25 presses the pressure sensor 35. The pressure sensor 35 transmits the measured pressure value to the background control system. The background control system compares multiple pressure values and detects the flatness of the plate by comparing the differences between the multiple pressure values.

[0061] Step 5: During the cutting process of the plate, a fixed column 19 moves to the bottom of the plate cutting position, and makes the top of the support ring 24 abut against the bottom of the plate. Then, when the circular hole on the plate is cut, the fallen circular piece can fall from the support ring 24 into the interior of the movable cylinder 30. The movable cylinder 30 can collect and store the cutting waste, which is convenient for subsequent processing and reuse of the circular piece.

[0062] Step 6: After the plate is cut, a fixed column 19 moves upward, and the support ring 24 abuts the bottom of the plate. Then the fixed column 19 continues to move upward, so that the pressure sensor 35 reaches the preset pressure value. At this time, by observing the state changes of the squeezed part of the plate, the extrusion resistance test of the finished plate can be completed.

[0063] When the present invention is in use, the laser cutting head 11 is an existing mature technology, so it will not be elaborated on in detail. The power-consuming mechanism in this device is powered by an external power supply through a wire. The power-consuming mechanism in the device is controlled by setting a control system. The fixed column 19 and the suction cup 23 can pass through the mesh of the mesh frame 2. The specifications of the fixed column 19 and the movable cylinder 30 are set to a variety of specifications to meet the needs of falling and collecting cutting waste of multiple specifications when the device cuts the plate. When the laser cutting head 11 is cutting, the background control system controls the fixed column 19 of the size corresponding to the cutting size to move to the bottom of the cutting place, thereby collecting the cutting waste.

[0064] When it is necessary to cut the plate, the staff first uses an embroidery needle to pass the nozzle of the laser cutting head 11. This operation method can effectively avoid the multi-nozzle phenomenon of the nozzle of the laser cutting head 11, and increase the stability of the device. Then the staff places the plate on the top of the screen frame 2. At this time, the first electric telescopic rod 14 drives the first fixed plate 3 to extend upward. After the first fixed plate 3 extends to the preset height position, the second electric telescopic rod 15 drives the first movable plate 4 to extend toward the screen frame 2. After the first movable plate 4 extends to the preset position, the first electric telescopic rod 14 drives the first fixed plate 3 to move downward until the bottom of the first movable plate 4 abuts the top of the plate. This operation method can complete the fixation of the plate, increasing the convenience of using the device.

[0065] After the plate is fixed on the screen frame 2, the CCD visual positioning device on the laser cutting head 11 is used to position the plate on the screen frame 2. After the plate is positioned, the cutting parameters are set according to the characteristics of the cutting plate before the plate can be cut.

[0066] When the positioning result shows that the plate is not tilted in place, the angle of the plate is adjusted as follows: at this time, the background control system controls a first electric slide 17 to slide in the first slide groove 16, so that a second fixed plate 18 moves to a preset position, and then a second electric slide 21 slides inside the second slide groove 20, so that a fixed column 19 moves to a preset position, and the third electric telescopic rod 32 drives the fixed column 19 to extend upward until the top of the fixed column 19 rises to a preset height position, and the third electric slide 29 slides upward in the third slide groove 28, driving the movable ring 22 to slide upward on the outside of the fixed column 19, so that the suction cup 23 passes through the mesh of the screen frame 2 and abuts against the bottom of the plate. At this time, the suction cup 23 adsorbs the plate, and then the first movable plate 4 moves away from the plate, and the first movable plate 4 no longer fixes the plate, and the second rotating motor 27 drives the fixed column 19 to rotate, so that the angle of the plate can be adjusted, thereby adjusting the placement angle of the plate;

[0067] The position of the plate is adjusted as follows: the first movable plate 4 is lowered to the outside of the plate to the bottom at the same horizontal height as the bottom of the plate. At this time, the first movable plate 4 moves close to the plate. When the first movable plate 4 abuts the plate, the suction cup 23 moves downward to separate from the plate. The first movable plate 4 pushes the plate to adjust the placement position of the plate. The position of the plate is adjusted by the suction cup 23 and the first movable plate 4 so that the plate meets the cutting position requirements. Then, the bottom of the first movable plate 4 abuts the top of the plate again to complete the fixation of the plate.

[0068] Then the focus height of the laser cutting head 11 is adjusted. The height cannot be too low, otherwise the steel sheet will move during the cutting process. Too high a height will cause the cutting to be out of focus and not cut through. After the adjustment, the staff tested the height of the laser cutting head 11. The test method is to pass the A4 paper between the plate and the laser cutting head 11. The A4 paper can then be pulled, and there is resistance when the A4 paper is pulled. The resistance is the weight of a gel pen. At this time, it means that the height of the laser cutting head 11 is adjusted in place, and the height test of the laser cutting head 11 is completed.

[0069] After the height test of the laser cutting head 11 is passed, the laser cutting head 11 starts to cut the plate. The background control system cuts the plate in an orderly manner according to the preset cutting order based on the cutting requirements. After the plate cutting is completed, the first fixed plate 3 and the first movable plate 4 move away from the plate, so that the first fixed plate 3 and the first movable plate 4 no longer fix the plate. Then the second fixed plate 18 and the fixed column 19 are moved to the preset position, and then extended upward by the third electric telescopic rod 32, so that the support ring 24 passes through the mesh of the screen frame 2 and lifts the cut plate upward. The plate is lifted to the preset height position, which is convenient for the preset unloading robot outside the device to grab and unload the plate, increasing the convenience of using the device.

[0070] Before the device cuts the plate, after the plate is adjusted and fixed, the four fixed columns 19 all move to the preset position, and then the fixed columns 19 extend upward to the preset height position, and the support ring 24 passes through the mesh of the screen frame 2, so that the top of the support ring 24 abuts the bottom of the plate. At this time, the support ring 24 squeezes the spring telescopic rod 25 downward, and the spring telescopic rod 25 squeezes the pressure sensor 35. The pressure sensor 35 transmits the measured pressure value to the background control system. The background control system compares multiple pressure values, and by comparing the differences between multiple pressure values, it detects the flatness of the plate, so that the quality of the finished product of the plate is guaranteed.

[0071] During the process of cutting the plate, a fixed column 19 moves to the bottom of the plate cutting point, and makes the top of the support ring 24 abut the bottom of the plate. Then, when the circular hole on the plate is cut, the fallen circular piece can fall from the support ring 24 into the interior of the movable cylinder 30. The movable cylinder 30 can complete the collection and storage of cutting waste, which is convenient for the subsequent processing and reuse of the circular piece, and increases the convenience of use of the device.

[0072] When the circular pieces inside the movable cylinder 30 are collected to a preset amount, and there is no plate to be processed on the top of the screen frame 2, the fixed column 19 moves upward and passes through the grid of the screen frame 2, and the fourth electric telescopic rod 33 extends so that the telescopic end of the fourth electric telescopic rod 33 abuts the outer side of the movable cylinder 30. At this time, the movable cylinder 30 can be lifted upward by moving the movable ring 22 upward until the movable cylinder 30 moves out of the fourth slot 36 and moves to a preset height position. At this time, the staff manually or by means of a robot provided on the outside of the device removes the movable cylinder 30, and then the staff puts a new movable cylinder 30 into the fourth slot 36.

[0073] When the movable cylinder 30 receives the waste circular pieces, the fourth electric telescopic rod 33 abuts against the movable cylinder 30 and then moves up and down, so that the bottom of the movable cylinder 30 hits the bottom of the fourth slot 36. The vibration generated by the impact prevents the circular pieces inside the movable cylinder 30 from being affected by the tilted placement, thereby increasing the functional stability of the device.

[0074] After the plate is cut, a fixed column 19 moves upward, and the support ring 24 abuts the bottom of the plate. Then the fixed column 19 continues to move upward, so that the pressure sensor 35 reaches the preset pressure value. At this time, by observing the state changes of the squeezed part of the plate, the anti-extrusion force test of the finished plate can be completed, so that the quality of the finished plate is guaranteed, and the convenience of using the device is increased.

[0075] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser cutting device using CCD positioning, comprising a fixed box (1) and a laser cutting head (11), characterized in that: A laser cutting head (11) is movably mounted on one side of the fixed box (1), a screen frame (2) is mounted on the top of the fixed box (1), fixing mechanisms are provided at both ends and the top of both sides of the fixed box (1), a plurality of second fixing plates (18) are movably mounted inside the fixed box (1), a plurality of fixing columns (19) are movably mounted on the top of the second fixing plates (18), a fourth slot (36) is provided on the top of the fixing column (19), a movable cylinder (30) is provided inside the fourth slot (36), an auxiliary mechanism is provided on the outside of the fixing column (19), and a detection mechanism is provided on the top of the fixing column (19); A second slide groove (20) is horizontally provided on the top of the second fixed plate (18) along the longitudinal direction, and a second electric slider (21) is installed at the bottom of the fixed column (19), and the second electric slider (21) is slidably installed inside the second slide groove (20); A second slot (26) is provided at the bottom of the fixing column (19), a third electric telescopic rod (32) is installed at the top of the inner wall of the second slot (26), the mounting end of the third electric telescopic rod (32) faces downward, a second rotary motor (27) is provided below the third electric telescopic rod (32), an output end of the second rotary motor (27) is connected to the mounting end of the third electric telescopic rod (32), and the mounting end of the second rotary motor (27) is connected to the second electric slider (21); The auxiliary mechanism comprises a movable ring (22) and a suction cup (23); the movable ring (22) is movably mounted on the outer side of the fixed column (19); and the suction cup (23) is mounted on the top of the movable ring (22); The outer side of the fixed column (19) is evenly and vertically provided with two third sliding grooves (28), the inner wall of the movable ring (22) near the third sliding groove (28) is provided with a third electric slider (29), and the third electric slider (29) is slidably installed inside the third sliding groove (28), the outer side of the fixed column (19) is evenly and vertically provided with two movable grooves (31), the movable groove (31) is connected to the fourth slot (36), and the movable ring (22) is embedded with a fourth electric telescopic rod (33) on the inner wall near the movable groove (31), the telescopic end of the fourth electric telescopic rod (33) faces the movable cylinder (30), and the telescopic end of the fourth electric telescopic rod (33) is provided with a rubber block.

2. The laser cutting device using CCD positioning according to claim 1, characterized in that: An electric lifting rod (5) is installed on one side of the fixed box (1), the lifting end of the electric lifting rod (5) faces upward, and a first support rod (6) is installed on the lifting end of the electric lifting rod (5), a first slot (7) is provided on the top of the first support rod (6), a threaded rod (8) is rotatably installed inside the first slot (7), a first rotating motor (9) is installed on one end of the first support rod (6), an output end of the first rotating motor (9) movably penetrates the end wall of the first support rod (6) and is connected to the threaded rod (8), a fixed slider (12) is slidably installed inside the first slot (7), the threaded rod (8) is threadedly penetrated through the fixed slider (12), an electric extension rod (10) is horizontally installed on the top of the fixed slider (12), the extension end of the electric extension rod (10) faces the fixed box (1), and the laser cutting head (11) is connected to the extension end of the electric extension rod (10) on the side close to the electric extension rod (10).

3. The laser cutting device using CCD positioning according to claim 2, characterized in that: The fixing mechanism includes a first fixed plate (3) and a first movable plate (4); first electric telescopic rods (14) are embedded and installed at both ends and the top of both sides of the fixed box (1); the telescopic end of the first electric telescopic rod (14) faces upward; the telescopic end of the first electric telescopic rod (14) is installed with the first fixed plate (3); a second electric telescopic rod (15) is embedded and installed on the side of the first fixed plate (3) facing the net frame (2); the telescopic end of the second electric telescopic rod (15) faces the net frame (2); and the telescopic end of the second electric telescopic rod (15) is installed with the first movable plate (4).

4. The laser cutting device using CCD positioning according to claim 3, characterized in that: A first slide groove (16) is provided at the inner bottom end of the fixed box (1), and a first electric slider (17) is installed at the bottom of the second fixed plate (18). The first electric slider (17) is slidably installed inside the first slide groove (16).

5. The laser cutting device using CCD positioning according to claim 4, characterized in that: The detection mechanism includes a support ring (24), a spring telescopic rod (25) and a pressure sensor (35). Two third slots (34) are evenly opened on the top of the fixed column (19). The pressure sensor (35) is installed at the bottom end of the inner wall of the third slot (34). The top of the fixed column (19) is provided with a support ring (24). The support ring (24) is provided with a spring telescopic rod (25) near the bottom of the third slot (34). The spring telescopic rod (25) is slidably installed inside the third slot (34), and one end of the spring telescopic rod (25) near the pressure sensor (35) is connected to the pressure sensor (35).

6. A laser cutting method using CCD positioning, characterized in that: The cutting method comprises the cutting device as claimed in claim 5, and further comprises the following steps: Step 1: When it is necessary to cut the plate, the staff first uses an embroidery needle to pass through the nozzle of the laser cutting head (11), and then the staff places the plate on the top of the screen frame (2), and completes the fixation of the plate through the first fixed plate (3) and the first movable plate (4). Then, the CCD visual positioning device on the laser cutting head (11) is used to position the plate on the screen frame (2). If the positioning result shows that the plate is not placed in the right position, the device adjusts the angle of the plate as follows: the fixed column (19) is extended upward, and the movable ring (22) is The outer side of the fixed column (19) slides upward, the suction cup (23) contacts the bottom of the plate and absorbs the plate, and then rotates through the fixed column (19) to adjust the angle of the plate. The device adjusts the position of the plate as follows: the first movable plate (4) descends to the bottom outside the plate and is at the same horizontal height as the bottom of the plate. The first movable plate (4) pushes the plate to adjust the placement position of the plate. The position of the plate is adjusted by the suction cup (23) and the first movable plate (4) so that the plate meets the cutting position requirements; Step 2: Adjust the focus height of the laser cutting head (11). After the adjustment, the staff will test it. The staff will test the height of the laser cutting head (11). The test method is to pass an A4 paper between the plate and the laser cutting head (11). Then the A4 paper can be pulled, and when the A4 paper is pulled, there is resistance from the A4 paper. The resistance is the weight of a gel pen. At this time, it means that the height of the laser cutting head (11) is adjusted in place. The height test of the laser cutting head (11) is completed. The laser cutting head (11) cuts the plate. The background control system cuts the plate in an orderly manner according to the preset cutting order according to the cutting requirements. Step 3: After the plate is cut, the first fixed plate (3) and the first movable plate (4) no longer fix the plate, and the third electric telescopic rod (32) is extended upward, so that the support ring (24) passes through the mesh of the mesh frame (2) and lifts the cut plate upward. The plate is lifted to a preset height position, which makes it convenient for a preset unloading robot outside the device to grab and unload the plate; Step 4: Before the device cuts the plate, the four fixed columns (19) are all extended upward to a preset height position and abut the bottom of the plate. At this time, the support ring (24) presses the spring telescopic rod (25) downward, and the spring telescopic rod (25) presses the pressure sensor (35). The pressure sensor (35) transmits the measured pressure value to the background control system. The background control system compares the multiple pressure values and detects the flatness of the plate by comparing the differences between the multiple pressure values. Step 5: During the cutting process of the plate, a fixed column (19) moves to the bottom of the plate cutting position, and makes the top of the support ring (24) abut against the bottom of the plate. Then, when the circular hole on the plate is cut, the fallen circular piece can fall from the support ring (24) into the inside of the movable cylinder (30). The movable cylinder (30) can complete the collection and storage of the cutting waste, which is convenient for the subsequent processing and reuse of the circular piece. Step 6: After the plate is cut, a fixed column (19) moves upward, and the support ring (24) abuts the bottom of the plate. Then the fixed column (19) continues to move upward, so that the pressure sensor (35) reaches the preset pressure value. At this time, by observing the state change of the plate being squeezed, the anti-extrusion force test of the finished plate can be completed.

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