A high-precision laser cutting device for quickly positioning a steel plate cutting position

Abstract

The application relates to the technical field of cutting devices, in particular to a high-precision laser cutting device for quickly positioning the cutting position of a steel plate, which comprises a cutting bed, side plates located at the two ends of the cutting bed, a plurality of taper plates arranged between the two side plates, first and second sliding blocks slidably arranged on a supporting beam arranged between the two side plates, and a first arc-shaped rod arranged on the first sliding block. The first and second sliding blocks on the supporting beam move towards each other, move to a predetermined position, and then the motors on the first and second sliding blocks work to drive the rotation of the rotating shaft, the rotating shaft drives the rotation of the first or second arc-shaped rod, the outer arc surfaces of the first and second arc-shaped rods are in contact with the steel plate, the steel plate is clamped and limited, the steel plate is located at the center of the first and second sliding blocks, the steel plate is quickly positioned, and the laser head is convenient for cutting.

Description

Technical Field

[0001] This invention relates to the field of cutting device technology, specifically a high-precision laser cutting device for quickly positioning the cutting position of steel plates. Background Technology

[0002] Laser cutting is a type of thermal cutting method. It uses a high-power-density laser beam to irradiate the material being cut, which quickly heats the material to its vaporization temperature and evaporates to form a hole. As the beam moves across the material, the hole continuously forms a very narrow kerf (such as about 0.1 mm). At the same time, a high-speed airflow coaxial with the beam blows away the molten material, thereby cutting the workpiece and completing the cutting of the material.

[0003] Laser cutting equipment can cut a wider variety of shapes. During the cutting process, it is often necessary to cut irregularly shaped plates. These irregularly shaped plates need to be fixed before cutting. Compared with regular square plates, irregularly shaped plates are more difficult to fix. Therefore, in order to ensure the fixing effect, the fixing of some irregularly shaped plates is done by workers. This fixing efficiency is low, which will affect the working efficiency of the cutting device when continuous operation is carried out. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision laser cutting device for quickly locating the cutting position of steel plates, solving the problem that the fixing of some irregularly shaped plates is done by workers, which has low fixing efficiency and affects the working efficiency of the cutting device when performing continuous operations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-precision laser cutting device for quickly locating the cutting position of a steel plate includes a cutting bed, side plates at both ends of the cutting bed, a plurality of conical plates between the two side plates, the two ends of the conical plates being fixedly connected to the two side plates respectively, a support beam between the two side plates, a first slider and a second slider slidably mounted on the support beam, a first arc-shaped rod mounted on the first slider, and a second arc-shaped rod mounted on the second slider, both of which are rotatable, a steel plate on the conical plate, and the tops of both the first and second arc-shaped rods being able to contact the steel plate, and a laser head above the cutting bed.

[0007] Preferably, both sides of the cutting bed are provided with longitudinal slide rods, the bottom of the longitudinal slide rods are fixedly connected to the side plates, and a longitudinal slider is slidably installed on the top of the longitudinal slide rods. A crossbeam is provided above the cutting bed, and both ends of the crossbeam are fixedly connected to the top of the longitudinal sliders respectively. A transverse slider is slidably installed on the crossbeam, and a vertical slider is slidably installed on one side of the transverse slider along the vertical direction. A laser head for cutting is installed on one side of the bottom of the vertical slider.

[0008] Preferably, the top of both the first slider and the second slider is provided with a sliding plate, the first arc rod and the second arc rod are both installed on the corresponding sliding plate, and the first arc rod and the second arc rod are provided with a slot on the side near the steel plate.

[0009] Preferably, both the first and second sliders are provided with mounting plates. The top of the mounting plate is connected to the corresponding slide plate by fixing bolts. The mounting plate has multiple threaded holes that mate with the fixing bolts, and the spacing between the threaded holes is the same as the spacing between adjacent cone plates.

[0010] Preferably, the first arc-shaped rod and the second arc-shaped rod correspond one to one. The ends of the first arc-shaped rod and the second arc-shaped rod near the skateboard are both fixedly connected to a rotating shaft. A bushing is provided on the outside of the rotating shaft. The outside of the bushing is fixedly connected to the top of the skateboard. A motor is provided on one side of the rotating shaft. The output end of the motor is fixedly connected to the rotating shaft.

[0011] Preferably, a cleaning rod is provided on the inner arc surface of both the first and second arc rods. The cleaning rod is fixed to the first or second arc rod by screws. A cleaning brush is provided on both sides of the cleaning rod, and the cleaning brush can contact the cone plate. A scraper is provided on one side of the cleaning rod, and the scraper can contact the cone plate.

[0012] Preferably, the card slot is provided with an abutment plate, and a contact switch is fixedly installed on the side wall of the card slot. A reset spring is provided on the outside of the contact switch, with one end of the reset spring fixedly connected to the side wall of the card slot and the other end fixedly connected to the abutment plate.

[0013] Preferably, the first and second arc-shaped rods are provided with multiple air holes, which are connected to the suction pipe.

[0014] Preferably, both the first and second arc-shaped rods are equipped with negative pressure pipes, and the top of the negative pressure pipes is equipped with rubber rings.

[0015] Preferably, the top of both the first and second arc-shaped rods is provided with a fixing block, and the two ends of the fixing block are fixedly connected to a connecting shaft. The connecting shaft is rotatably connected to the first or second arc-shaped rod through a fixing plate, and the negative pressure pipe passes through the fixing block and is fixedly connected to the fixing block.

[0016] The beneficial effects of this invention are:

[0017] 1. The high-precision laser cutting device for quickly positioning the cutting position of a steel plate, as described in this invention, involves setting a first arc-shaped rod and a second arc-shaped rod. The first and second sliders on the support beam move towards each other and move to a predetermined position. The motors on the first and second sliders operate, driving the rotating shaft to rotate. The rotating shaft drives the first or second arc-shaped rod to rotate. The outer arc surfaces of the first and second arc-shaped rods contact the steel plate, thereby clamping and limiting the steel plate, placing it at the exact center of the first and second sliders. This allows for rapid positioning of the steel plate, facilitating laser head cutting.

[0018] 2. The high-precision laser cutting device for quickly positioning the cutting position of steel plates according to the present invention uses multiple first arc rods and second arc rods. When positioning irregularly shaped steel plates, the edges of the irregularly shaped steel plates are uneven, and the corresponding first arc rods or second arc rods rotate at different angles, so that the first arc rods and second arc rods can make close contact with the edge of the steel plate, thereby enabling the rapid fixing of steel plates of different shapes.

[0019] 3. The high-precision laser cutting device for quickly locating the cutting position of steel plates according to the present invention, by setting a slot and a contact switch, after the first arc-shaped rod and the second arc-shaped rod come into contact with the steel plate, the contact switch in the corresponding slot is triggered. At this time, the first slider and the second slider are in a predetermined position. The position of the steel plate edge in contact with the first arc-shaped rod or the second arc-shaped rod can be determined by distinguishing the contact switches at different positions, thereby determining whether the position of the steel plate is correct. When the edge of the steel plate is raised or other problems cause the position of the edge of the steel plate to be incorrect, it can be quickly determined by triggering the contact switch.

[0020] 4. The high-precision laser cutting device for quickly locating the cutting position of a steel plate, as described in this invention, comprises a first arc-shaped rod, a second arc-shaped rod, and a negative pressure tube. After the edge of the steel plate is partially fixed by the first and second arc-shaped rods, the first and second arc-shaped rods located below the steel plate are lifted upwards by a motor, causing the negative pressure tube at the top of the first and second arc-shaped rods to contact the bottom of the steel plate. Then, an external air pump is used to evacuate the negative pressure tube. A rubber ring is provided at the end of the negative pressure tube. Under the action of the negative pressure tube, the rubber ring adheres to the bottom of the steel plate after contacting it, thereby fixing the steel plate. At this time, the first and second arc-shaped rods located on both sides of the steel plate fix the steel plate, preventing the negative pressure tube from pushing the steel plate upwards when it contacts the bottom of the steel plate, which would cause the position of the steel plate to move. Then, the first and second arc-shaped rods located on both sides of the steel plate rotate upwards by a motor, thereby facilitating the laser head to cut the steel plate. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the bottom of the cutting bed shown in this invention.

[0024] Figure 3 This is a cross-sectional view of the cutting bed shown in this invention.

[0025] Figure 4 This is a schematic diagram showing the positions of the skateboard and mounting plate as illustrated in this invention.

[0026] Figure 5 This is a schematic diagram showing the positions of the motor and bushing in this invention.

[0027] Figure 6 This is a schematic diagram showing the position of the first arc-shaped rod as illustrated in this invention.

[0028] Figure 7 As shown in this invention Figure 6 Enlarged schematic diagram of part A.

[0029] Figure 8 This is a cross-sectional view of the first arc-shaped rod 17 shown in the present invention.

[0030] Figure 9 This is a schematic diagram of the structure inside the card slot shown in the present invention.

[0031] In the diagram: 1. Cutting bed; 2. Side plate; 3. Conical plate; 5. Longitudinal slide bar; 6. Longitudinal slider; 7. Crossbeam; 8. Transverse slider; 9. Vertical slider; 10. Laser head; 11. Support beam; 12. First slider; 13. Second slider; 14. Mounting plate; 15. Slide plate; 16. Fixing bolt; 17. First arc-shaped rod; 18. Second arc-shaped rod; 19. Cleaning rod; 20. Scraper; 21. Rotating shaft; 22. Bushing; 23. Motor; 24. Fixing block; 25. Fixing plate; 26. Connecting shaft; 27. Negative pressure pipe; 28. Suction pipe; 29. ​​Slot; 30. Abutment plate; 31. Return spring; 32. Contact switch; 33. Suction hole; 34. Steel plate. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-9As shown, the high-precision laser cutting device for quickly locating the cutting position of steel plates according to the present invention includes a cutting bed 1, side plates 2 located at both ends of the cutting bed 1, a plurality of conical plates 3 provided between the two side plates 2, the two ends of the conical plates 3 being fixedly connected to the two side plates 2 respectively, a support beam 11 provided between the two side plates 2, a first slider 12 and a second slider 13 slidably mounted on the support beam 11, a first arc-shaped rod 17 mounted on the first slider 12, and a second arc-shaped rod 18 mounted on the second slider 13, both the first arc-shaped rod 17 and the second arc-shaped rod 18 being rotatable, a steel plate 34 provided on the conical plates 3, the tops of the first arc-shaped rod 17 and the second arc-shaped rod 18 being able to contact the steel plate 34, and a laser head 10 provided above the cutting bed 1. The first slider 12 and the second slider 13 on the support beam 11 move towards each other and move to a predetermined position. The motor 23 on the first slider 12 and the second slider 13 works, driving the rotating shaft 21 to rotate. The rotating shaft 21 drives the first arc rod 17 or the second arc rod 18 to rotate. The outer arc surfaces of the first arc rod 17 and the second arc rod 18 contact the steel plate 34, thereby clamping and limiting the steel plate 34, so that the steel plate 34 is located at the exact center of the first slider 12 and the second slider 13, thereby quickly positioning the steel plate 34, which is convenient for the laser head 10 to cut.

[0034] As a technical optimization of the present invention, longitudinal slide rods 5 are provided on both sides of the cutting bed 1. The bottom of the longitudinal slide rods 5 is fixedly connected to the side plate 2. A longitudinal slider 6 is slidably installed on the top of the longitudinal slide rods 5. A crossbeam 7 is provided above the cutting bed 1. The two ends of the crossbeam 7 are fixedly connected to the top of the longitudinal slider 6 respectively. A transverse slider 8 is slidably installed on the crossbeam 7. A vertical slider 9 is slidably installed on one side of the transverse slider 8 along the vertical direction. A laser head 10 for cutting is installed on one side of the bottom of the vertical slider 9.

[0035] As a technical optimization of the present invention, the top of the first slider 12 and the second slider 13 are both provided with a sliding plate 15, and the first arc rod 17 and the second arc rod 18 are both installed on the corresponding sliding plate 15. The first arc rod 17 and the second arc rod 18 are provided with a slot 29 on the side near the steel plate 34. The first slider 12 and the second slider 13 are both provided with a mounting plate 14. The top of the mounting plate 14 is connected to the corresponding sliding plate 15 by a fixing bolt 16. The mounting plate 14 has a plurality of threaded holes that cooperate with the fixing bolt 16, and the spacing of the threaded holes is the same as the spacing of the adjacent conical plates 3. The crossbeam 7 can move along the length direction of the cutting bed 1 under the drive of the longitudinal slider 6. The vertical slider 9 can move along the width direction of the cutting bed 1 under the drive of the transverse slider 8. The vertical slider 9 can move up and down in the vertical direction, thereby facilitating the laser head 10 to cut. The sliding plate 15 can move along the length direction of the mounting plate 14, thereby adjusting the position of the first arc rod 17 and the second arc rod 18.

[0036] As a technical optimization of the present invention, the first arc-shaped rod 17 and the second arc-shaped rod 18 correspond one-to-one. A rotating shaft 21 is fixedly connected to the end of each of the first arc-shaped rod 17 and the second arc-shaped rod 18 near the slide plate 15. A bushing 22 is provided on the outside of the rotating shaft 21, and the outside of the bushing 22 is fixedly connected to the top of the slide plate 15. A motor 23 is provided on one side of the rotating shaft 21, and the output end of the motor 23 is fixedly connected to the rotating shaft 21. By using multiple first arc-shaped rods 17 and second arc-shaped rods 18, when positioning irregularly shaped steel plates 34, the edges of the irregularly shaped steel plates 34 are uneven, and the corresponding first arc-shaped rods 17 or second arc-shaped rods 18 rotate at different angles. This allows the first arc-shaped rods 17 and the second arc-shaped rods 18 to make close contact with the edges of the steel plates 34, thereby enabling rapid fixing of steel plates 34 of different shapes.

[0037] As a technical optimization of the present invention, a cleaning rod 19 is provided on the inner arc surface of the first arc rod 17 and the second arc rod 18. The cleaning rod 19 is fixed to the first arc rod 17 or the second arc rod 18 by screws. A cleaning brush is provided on both sides of the cleaning rod 19. The cleaning brush can contact the cone plate 3. A scraper 20 is provided on one side of the cleaning rod 19. The scraper 20 can contact the cone plate 3. An abutment plate 30 is provided in the slot 29. A contact switch 32 is fixedly installed on the side wall of the slot 29. A return spring 31 is provided on the outside of the contact switch 32. One end of the return spring 31 is fixedly connected to the side wall of the slot 29, and the other end is fixedly connected to the abutment plate 30. After the first arc-shaped rod 17 and the second arc-shaped rod 18 come into contact with the steel plate 34, the contact switch 32 in the corresponding slot 29 is triggered. At this time, the first slider 12 and the second slider 13 are in the predetermined position. The position of the steel plate 34 edge in contact with the first arc-shaped rod 17 or the second arc-shaped rod 18 can be determined by distinguishing the contact switch 32 at different positions, thereby determining whether the position of the steel plate 34 is correct. When the edge of the steel plate 34 is raised or other problems cause the edge of the steel plate 34 to be in the wrong position, it can be quickly determined by triggering the contact switch 32.

[0038] As a technical optimization of the present invention, the first arc-shaped rod 17 and the second arc-shaped rod 18 are provided with multiple air holes, which are connected to the suction pipe 28. Both the first arc-shaped rod 17 and the second arc-shaped rod 18 are provided with multiple suction holes 33. During the cutting process, the powder generated during cutting can be sucked away by the external air pump, the suction pipe 28, and the suction holes 33, thereby reducing the accumulation of powder on the equipment, reducing the probability of equipment failure, and reducing the frequency of maintenance.

[0039] As a technical optimization of the present invention, both the first arc-shaped rod 17 and the second arc-shaped rod 18 are provided with a negative pressure tube 27, and the top of the negative pressure tube 27 is provided with a rubber ring.

[0040] As a technical optimization of the present invention, the top of the first arc-shaped rod 17 and the second arc-shaped rod 18 are both provided with fixing blocks 24. Connecting shafts 26 are fixedly connected to both ends of the fixing blocks 24. The connecting shafts 26 are rotatably connected to the first arc-shaped rod 17 or the second arc-shaped rod 18 through fixing plates 25. The negative pressure pipe 27 passes through the fixing blocks 24 and is fixedly connected to them. The fixing blocks 24 at the top of the first arc-shaped rod 17 and the second arc-shaped rod 18 can rotate along the connecting shafts 26, thereby ensuring that the negative pressure pipe 27 at any position within a certain range can be completely adsorbed onto the bottom of the steel plate 34, preventing gaps between the end of the negative pressure pipe 27 and the steel plate 34, which would otherwise lead to a poor fixing effect.

[0041] Working principle: Both the negative pressure pipe 27 and the dust suction pipe 28 are externally connected to air pumps. In use, the steel plate 34 is first placed on the cutting bed 1. The top of the cutting bed 1 is connected to a baffle (not shown in the figure) by screws. The baffle can contact the steel plate 34 and limit the steel plate 34 in the width direction of the cutting bed 1. Then, the first slider 12 and the second slider 13 on the support beam 11 move towards each other and move to the predetermined position. The motor 23 on the first slider 12 and the second slider 13 works and drives the rotating shaft 21 to rotate. The rotating shaft 21 drives the first arc rod 17 or the second arc rod 18 to rotate. The outer arc surface of the first arc rod 17 and the second arc rod 18 contacts the steel plate 34, thereby clamping and limiting the steel plate 34, so that the steel plate 34 is located at the center of the first slider 12 and the second slider 13, thereby quickly positioning the steel plate 34, which is convenient for the laser head 10 to cut.

[0042] Because multiple first arc rods 17 and second arc rods 18 are used, when positioning irregularly shaped steel plates 34, the edges of the irregularly shaped steel plates 34 are uneven, and the corresponding first arc rods 17 or second arc rods 18 rotate at different angles, so that the first arc rods 17 and second arc rods 18 can make close contact with the edges of the steel plates 34, thereby enabling the rapid fixing of steel plates 34 of different shapes.

[0043] When the first arc-shaped rod 17 and the second arc-shaped rod 18 come into contact with the steel plate 34, the contact switch 32 in the corresponding slot 29 is triggered. At this time, the first slider 12 and the second slider 13 are in the predetermined position. The position of the steel plate 34 edge in contact with the first arc-shaped rod 17 or the second arc-shaped rod 18 can be determined by distinguishing the contact switch 32 at different positions, thereby determining whether the position of the steel plate 34 is correct. When the edge of the steel plate 34 is raised or other problems cause the edge of the steel plate 34 to be in the wrong position, it can be quickly determined by triggering the contact switch 32.

[0044] The first arc-shaped rod 17 and the second arc-shaped rod 18 have the same structure and principle. The following description takes the first arc-shaped rod 17 as an example. The outer arc surface of the first arc-shaped rod 17 is provided with a groove 29, and the groove 29 is provided with an abutment plate 30. When the first arc-shaped rod 17 contacts the steel plate 34, the abutment plate 30 contacts the steel plate 34 first. The steel plate 34 pushes the abutment plate 30 to move, thereby squeezing the return spring 31. After the return spring 31 is compressed, the abutment plate 30 contacts the contact switch 32. When the return spring 31 is squeezed, the steel plate 34 contacts the inner wall of the groove 29, thereby locking the edge of the steel plate 34, making the fixing effect of the first arc-shaped rod 17 on the steel plate 34 better. Moreover, the return spring 31 can buffer the steel plate 34, preventing the first arc-shaped rod 17 from being damaged due to the large force of contact with the edge of the steel plate 34 when the first arc-shaped rod 17 rotates along the rotating shaft 21.

[0045] When it is necessary to cut the edge of the steel plate 34, and the steel plate 34 is fixed using a portion of the first arc-shaped rod 17 and the second arc-shaped rod 18, after the edge of the steel plate is fixed by a portion of the first arc-shaped rod 17 and a portion of the second arc-shaped rod 18, the remaining first arc-shaped rod 17 and the second arc-shaped rod 18 are located below the steel plate 34. After the edge of the steel plate 34 is fixed by a portion of the first arc-shaped rod 17 and the second arc-shaped rod 18, the first arc-shaped rod 17 and the second arc-shaped rod 18 located below the steel plate 34 are lifted upwards by the motor 23, so that the negative pressure pipe 27 at the top of the first arc-shaped rod 17 and the second arc-shaped rod 18 contacts the bottom of the steel plate 34. Then, air is drawn from the negative pressure pipe 27 by an external air pump. The end of the negative pressure pipe 27 is equipped with a rubber... Under the action of the negative pressure tube 27, the rubber ring adheres to the bottom of the steel plate 34 after contacting it, thus fixing the steel plate 34. The first arc-shaped rod 17 and the second arc-shaped rod 18 located below the steel plate 34 move downward a short distance, tautning the negative pressure tube 27. At this time, the first arc-shaped rod 17 and the second arc-shaped rod 18 located on both sides of the steel plate 34 fix the steel plate 34, preventing the negative pressure tube 27 from pushing the steel plate 34 upward when it contacts the bottom of the steel plate 34, which would cause the position of the steel plate 34 to move. Then, the first arc-shaped rod 17 and the second arc-shaped rod 18 located on both sides of the steel plate 34 rotate upward under the drive of the motor 23, thus facilitating the laser head 10 to cut the steel plate 34.

[0046] The first arc-shaped rod 17 and the second arc-shaped rod 18 are provided with a fixing block 24 at their top. The fixing block 24 can rotate along the connecting shaft 26, so that the negative pressure tube 27 at the top of the first arc-shaped rod 17 and the second arc-shaped rod 18 can be completely adsorbed onto the bottom of the steel plate 34 at any position within a certain range, avoiding gaps between the end of the negative pressure tube 27 and the steel plate 34, which would lead to a poor fixing effect.

[0047] Multiple dust suction holes 33 are provided on both the first arc rod 17 and the second arc rod 18. During the cutting process, the powder generated during cutting can be sucked away by the external air pump, dust suction pipe 28 and dust suction holes 33, thereby reducing the accumulation of powder on the equipment, reducing the probability of equipment failure and reducing the frequency of maintenance.

[0048] When the first arc-shaped rod 17 and the second arc-shaped rod 18 move, the cleaning rod 19 can clean the cone plate 3 to prevent debris from being on the cone plate 3, which would cause the steel plate 34 to become uneven, resulting in a poor fixing effect of the first arc-shaped rod 17 and the second arc-shaped rod 18 and affecting the cutting effect. The laser head 10 will also cause some damage to the cone plate 3 under the steel plate 34 during cutting. After the first arc-shaped rod 17 and the second arc-shaped rod 18 rotate upward at a certain angle, the scraper 20 can contact the cone plate 3 and move along the support beam 11 under the drive of the first slider 12 and the second slider 13, which can scrape off the burrs on the cone plate 3. When cleaning the cone plate 3, the dust suction pipe 28 will simultaneously draw air to increase the cleaning effect.

[0049] The scraper 20 and cleaning rod 19 can provide some protection to the inner arc surface of the first arc rod 17 or the second arc rod 18, so as to avoid damage to the first arc rod 17 or the second arc rod 18 by the laser head 10 during cutting. The scraper 20 and cleaning rod 19 are connected to the first arc rod 17 or the second arc rod 18 by screws, which makes it easy to disassemble and replace.

[0050] The crossbeam 7 can move along the length of the cutting bed 1 under the drive of the longitudinal slider 6, and the vertical slider 9 can move along the width of the cutting bed 1 under the drive of the transverse slider 8. The vertical slider 9 can move up and down in the vertical direction, which facilitates the laser head 10 to perform cutting.

[0051] The slide plate 15 can move along the length of the mounting plate 14, thereby adjusting the position of the first arc-shaped rod 17 and the second arc-shaped rod 18.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision laser cutting device for rapidly positioning the cutting position of steel plates, comprising a cutting bed (1) and side plates (2) located at both ends of the cutting bed (1), characterized in that: Multiple conical plates (3) are provided between the two side plates (2). The two ends of the conical plates (3) are fixedly connected to the two side plates (2) respectively. A support beam (11) is also provided between the two side plates (2). A first slider (12) and a second slider (13) are slidably installed on the support beam (11). A first arc rod (17) is installed on the first slider (12), and a second arc rod (18) is installed on the second slider (13). Both the first arc rod (17) and the second arc rod (18) can rotate. A steel plate (34) is provided on the conical plate (3). The tops of the first arc rod (17) and the second arc rod (18) can contact the steel plate (34). A laser head (10) is provided above the cutting bed (1). A sliding plate (15) is provided on the top of the first slider (12) and the second slider (13). The first arc rod (17) and the second arc rod (18) are installed on the corresponding sliding plate (15). A slot (29) is provided on the side of the first arc rod (17) and the second arc rod (18) near the steel plate (34). Mounting plates (14) are provided on the first slider (12) and the second slider (13). The top of the mounting plate (14) is connected to the corresponding slide plate (15) by fixing bolts (16). Multiple threaded holes that cooperate with the fixing bolts (16) are provided on the mounting plate (14), and the spacing of the threaded holes is the same as the spacing of the adjacent cone plates (3). The first arc rod (17) and the second arc rod (18) correspond one to one. A rotating shaft (21) is fixedly connected to the end of the first arc rod (17) and the second arc rod (18) near the slide plate (15). A bushing (22) is provided on the outside of the rotating shaft (21). The outside of the bushing (22) is fixedly connected to the top of the slide plate (15). A motor (23) is provided on one side of the rotating shaft (21). The output end of the motor (23) is fixedly connected to the rotating shaft (21).

2. The high-precision laser cutting device for rapidly positioning the cutting position of steel plates according to claim 1, characterized in that: The cutting bed (1) is provided with longitudinal slide rods (5) on both sides. The bottom of the longitudinal slide rods (5) is fixedly connected to the side plate (2). A longitudinal slider (6) is slidably installed on the top of the longitudinal slide rods (5). A crossbeam (7) is provided above the cutting bed (1). The two ends of the crossbeam (7) are fixedly connected to the top of the longitudinal slider (6). A transverse slider (8) is slidably installed on the crossbeam (7). A vertical slider (9) is slidably installed on one side of the transverse slider (8) in the vertical direction. A laser head (10) for cutting is installed on one side of the bottom of the vertical slider (9).

3. The high-precision laser cutting device for rapidly positioning the cutting position of steel plates according to claim 1, characterized in that: Cleaning rods (19) are provided on the inner arc surfaces of the first arc rod (17) and the second arc rod (18). The cleaning rods (19) are fixed to the first arc rod (17) or the second arc rod (18) by screws. Cleaning brushes are provided on both sides of the cleaning rods (19). The cleaning brushes can contact the cone plate (3). A scraper (20) is provided on one side of the cleaning rods (19). The scraper (20) can contact the cone plate (3).

4. A high-precision laser cutting device for rapidly positioning the cutting position of a steel plate according to claim 1, characterized in that: The slot (29) is provided with an abutment plate (30), and a contact switch (32) is fixedly installed on the side wall of the slot (29). A reset spring (31) is provided on the outside of the contact switch (32). One end of the reset spring (31) is fixedly connected to the side wall of the slot (29), and the other end is fixedly connected to the abutment plate (30).

5. A high-precision laser cutting device for rapidly positioning the cutting position of a steel plate according to claim 4, characterized in that: Multiple air holes are provided on the first arc-shaped rod (17) and the second arc-shaped rod (18), and the air holes are connected to the suction pipe (28).

6. A high-precision laser cutting device for rapidly positioning the cutting position of a steel plate according to claim 5, characterized in that: Negative pressure pipes (27) are provided inside the first arc-shaped rod (17) and the second arc-shaped rod (18), and a rubber ring is provided at the top of the negative pressure pipe (27).

7. A high-precision laser cutting device for rapidly positioning the cutting position of a steel plate according to claim 6, characterized in that: The top of the first arc-shaped rod (17) and the second arc-shaped rod (18) are both provided with a fixing block (24). The two ends of the fixing block (24) are fixedly connected with a connecting shaft (26). The connecting shaft (26) is rotatably connected to the first arc-shaped rod (17) or the second arc-shaped rod (18) through a fixing plate (25). The negative pressure pipe (27) passes through the fixing block (24) and is fixedly connected to the fixing block (24).

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