Laser cutting machine capable of being rapidly cooled

Abstract

The laser cutting machine comprises a base, a feeding table, a fixing support and a laser cutting head, a connecting disc is arranged at the upper end of the feeding table, a clamping mechanism is arranged in the middle of the connecting disc, and the clamping mechanism is composed of a gear, a movable strip, a movable block and a fixed clamping block; the cooling mechanism is arranged in the middle of the fixing support and composed of protective side plates, cooling pipes and cooling nozzles, the protective side plates are symmetrically arranged at the front end and the rear end of the laser cutting head, and the length fixing mechanism is arranged at the left end of the base and composed of a movable frame, a mounting block, a mounting support and a length fixing baffle. According to the laser cutting machine capable of rapidly cooling, during cutting, through the arrangement of the cooling mechanism, cold air blowing cooling treatment can be effectively conducted on a notch of a steel pipe, deformation caused by too high temperature of the notch is prevented, and continuous fixed-length cutting can be conveniently conducted on the steel pipe in combination with the arrangement of the fixed-length mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field related to laser cutting machines, and particularly to a laser cutting machine capable of rapid cooling. Background Technique

[0002] A laser cutting machine refers to a cutting device that emits laser through a laser generator, which is focused into a laser beam with a high power density through an optical path system, and then the laser beam is irradiated onto the surface of the workpiece to be cut, so that the workpiece reaches the melting point or boiling point. At the same time, the molten or vaporized metal is blown away by a high-pressure gas coaxial with the beam to form a cut. Laser cutting has many advantages, such as high cutting accuracy, fast speed, small heat affected zone, and high economic benefits, etc., and is used more and more widely; For example, the patent with publication number CN215091425U discloses a steel pipe laser cutting machine, including a bottom plate, a top plate connected and installed on the top, and a protective plate installed above. The bottom plate includes: a support frame installed above; a connecting shaft installed on the support frame; a positioning roller installed on the connecting shaft; a pressing rod connected to the support frame; a spring connecting the support frame and the pressing rod, and a steel pipe installed on the positioning roller. In this steel pipe laser cutting machine, positioning rollers are provided on the bottom plate. The steel pipe to be cut is placed between the positioning rollers, and the inner walls of both ends of the steel pipe are clamped and fixed by the pressing rod rotating along the connecting shaft under the elastic force of the spring, which is convenient for fixing steel pipes of different diameters and avoiding the deviation of the steel pipe during the cutting process; the connecting rod rotates along the rotating shaft to facilitate angle adjustment and change the movement trajectory of the laser generator, which is convenient for cutting in different directions. The protective cover is fixed on the block on the bottom plate through a buckle, which is convenient for installation and avoids the eyes of processing personnel being stung by the generated sparks; For example, the patent with publication number CN117697176B discloses a steel pipe laser cutting machine and its control system, including: a collection component and a laser cutting component, and the collection component is fixedly installed below the laser cutting component; it also includes a cleaning component and a conveying component. The cleaning component is fixedly installed inside the collection component, and the conveying component is fixedly installed inside the collection component and is located at one side edge of the cleaning component. Through the coordinated operation of the cleaning component, the conveying component, the collection component, and the laser cutting component, the inner surface of each steel pipe that has completed cutting and fallen can be automatically cleaned, thereby avoiding the delay in the shipping efficiency caused by the subsequent separate cleaning of the inner surface of the steel pipe, and it can also receive the generated spark residues and reduce the cleaning difficulty; However, the existing laser cutting machines capable of rapid cooling still have the following deficiencies: 1. For the existing laser cutting machines, when cutting steel pipes, since the steel pipes are cylindrical, most of the clamping mechanisms for the steel pipes are provided with two or more. When clamping the steel pipes, it is necessary to operate the single clamping mechanism multiple times to realize the clamping and fixing of the steel pipes, and the operation steps are more and not simple enough; 2. The existing laser cutting machines are inconvenient for stably transporting and supporting the steel pipes to be cut. Moreover, the temperature at the cut of the steel pipe is relatively high, and the cooling speed is slow by natural cooling, and the cut is prone to deformation. 3. For the existing laser cutting machines, when cutting long steel pipes, it is necessary to measure the length of the cut steel pipes multiple times, which is inconvenient for fixed-length cyclic batch cutting of steel pipes and results in low cutting efficiency of steel pipes.

[0003] Therefore, we propose a laser cutting machine capable of rapid cooling to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser cutting machine capable of rapid cooling to solve the problems raised in the above background technology. When cutting steel pipes, since the steel pipes are cylindrical, most of the clamping mechanisms for the steel pipes are provided with two or more. When clamping the steel pipes, it is necessary to operate a single clamping mechanism multiple times to achieve the clamping and fixing of the steel pipes. The operation steps are numerous, not simple enough, inconvenient for stably transporting and supporting the steel pipes to be cut. Moreover, the temperature at the cut of the steel pipe is relatively high, and the cooling speed is slow by natural cooling, and the cut is prone to deformation. When cutting long steel pipes, it is necessary to measure the length of the cut steel pipes multiple times, which is inconvenient for fixed-length cyclic batch cutting of steel pipes and results in low cutting efficiency of steel pipes.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A laser cutting machine capable of rapid cooling, including a base, a loading table, a fixed bracket, and a laser cutting head, and the laser cutting head is connected to the laser cutting machine and the laser generator; It further includes: A connecting plate, the connecting plate is arranged at the upper end of the loading table, and a clamping mechanism is arranged in the middle of the connecting plate. The clamping mechanism is composed of a gear, a movable strip, a movable block, and a fixed clamp block; A cooling mechanism, the cooling mechanism is arranged in the middle of the fixed bracket, and the cooling mechanism is composed of a protective side plate, a cooling pipe, and a cooling nozzle. The protective side plates are symmetrically arranged at the front and rear ends of the laser cutting head; A fixed-length mechanism, the fixed-length mechanism is arranged at the left end of the base, and the fixed-length mechanism is composed of a movable frame, a mounting block, a mounting bracket, and a fixed-length baffle.

[0006] Preferably, a first servo motor is fixedly installed at the right end of the base, and the output end of the first servo motor is fixedly connected with a lead screw. The first servo motor drives the lead screw to rotate in the middle of the base, and the lead screw is threadedly connected with a connecting column. The upper end of the connecting column is fixedly connected with a loading table, and the loading table and the linear guide rail form a left-right sliding structure; Among them, the linear guide rail is fixedly connected to the upper end of the base.

[0007] Preferably, a second servo motor is fixedly installed at the upper right end of the loading table, and the output end of the second servo motor is fixedly connected to a connection disk.

[0008] Preferably, a gear is rotatably connected to the middle of the connection disk, and movable bars are meshed and connected to both the front and rear ends of the gear. One end of the movable bar away from the gear is fixedly connected to a movable block, and the movable block forms a vertical sliding structure in the connection disk.

[0009] Preferably, the movable bars at the front and rear ends move in opposite directions in the connection disk. The left end of the movable bar is fixedly connected to a fixed clamping block for clamping. The upper right end of the rear movable bar is fixedly connected to a movable cylinder, and the movable cylinder forms a vertical sliding structure at the upper right end of the connection disk. A fixed rod is disposed through the middle of the movable cylinder, and a fixing cap for locking and limiting is threadedly connected to the outer surface of the fixed rod; Among them, the fixing cap is attached to the upper end of the movable cylinder, and the fixed rod is fixedly connected to the right end of the connection disk.

[0010] Preferably, a supporting unloading table is disposed on the left side of the linear guide rail, and the supporting unloading table is fixedly connected to the left side of the base. The right end of the supporting unloading table is telescopically connected to a movable bracket, and an auxiliary roller is rotatably connected to the upper end of the movable bracket, and the auxiliary roller is attached to the lower end of the workpiece; Meanwhile, the movable bracket and the supporting unloading table are limited by a fixing bolt, and the fixing bolt is threadedly connected to both the movable bracket and the supporting unloading table.

[0011] Preferably, an electric telescopic rod is fixedly installed at the upper end of the fixed bracket, and the output end of the electric telescopic rod is fixedly connected to a horizontally disposed mounting plate. Vertical rails are slidably connected to both the front and rear ends of the mounting plate, and the vertical rails are respectively fixedly connected to the front and rear ends inside the fixed bracket; Meanwhile, a laser cutting head is installed in the middle of the lower end of the mounting plate, and protective side plates are fixedly connected to both the front and rear sides of the lower end of the mounting plate.

[0012] Preferably, a cooling pipe is fixedly connected to the inside of the front protective side plate, and cooling nozzles are arranged at equal intervals at the rear end of the cooling pipe. The cooling pipe is connected to a cold air blower installed at the upper end of the mounting plate, and the cooling nozzles are inclined on the cooling pipe and face the lower side of the laser cutting head.

[0013] Preferably, the movable frames are respectively slidably connected to both the front and rear sides of the lower end of the fixed bracket, and a mounting block for support is slidably connected to the middle of the movable frame. The mounting block is fixedly connected to the outer side of the lower end of the fixed bracket; Wherein, the left side of the movable frame is fixedly connected with a mounting bracket through bolts, and a fixed-length baffle is fixedly connected to the middle of the mounting bracket. The fixed-length baffle is attached to the left side of the workpiece, and the movable frame together with the mounting bracket drives the fixed-length baffle to move left and right on the left side of the base.

[0014] Preferably, both the upper and lower ends of the mounting block are hinged with limiting plates, and a torsion spring is arranged at the connection between the mounting block and the limiting plates. The limiting plates are snap-connected with the corresponding convex blocks, and the convex blocks are arranged at equal intervals at the upper and lower ends of the movable frame. Meanwhile, a corresponding scale code is arranged below each convex block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: for this laser cutting machine that can be quickly cooled, through the settings of the clamping mechanism, movable cylinder, fixed rod and fixing cap, only by rotating the fixing cap can the clamping and positioning of the steel pipe be realized, simplifying the operation steps in the clamping process. Combining with the driving of the connecting disk to rotate the steel pipe, the steel pipe can be driven to rotate and cut. Moreover, through the feeding table and auxiliary rollers, the steel pipe can be stably conveyed and supported. During cutting, through the setting of the cooling mechanism, the notch of the steel pipe can be effectively cooled by blowing cold air, preventing the temperature at the cut from being too high and causing deformation. Combining with the setting of the fixed-length mechanism, it is convenient to continuously cut the steel pipe at a fixed length without measuring the steel pipe every time, greatly improving the cutting efficiency of the steel pipe. 1. It is provided with a connecting disk, a clamping mechanism, a movable cylinder, a fixed rod and a fixing cap. Through the settings of the clamping mechanism, movable cylinder, fixed rod and fixing cap, it is convenient to stably clamp and position the steel pipe. Combining with the driving of the connecting disk to rotate the steel pipe, the rotary cutting of the steel pipe is realized. 2. It is provided with a feeding table, auxiliary rollers and a laser cutting head. Through the settings of the feeding table and the clamping mechanism, it is convenient to support and stably convey the steel pipe. Combining with the setting of the laser cutting head, the cut of the steel pipe can be cooled by blowing cold air, preventing deformation due to too high temperature. 3. It is provided with a fixed-length mechanism, and the fixed-length mechanism includes a movable frame, a mounting block, a mounting bracket and a fixed-length baffle. Through the setting of the fixed-length mechanism, it is convenient to continuously cut the steel pipe at a fixed length, greatly improving the cutting efficiency of the steel pipe. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention in the southeast direction; Figure 2 It is a schematic diagram of the overall structure of the present invention in the southwest direction; Figure 3 It is a schematic diagram of the top view structure of the present invention; Figure 4 It is a schematic diagram of the side view structure of the present invention; Figure 5Schematic diagram of the front sectional view of the present invention; Figure 6 Schematic diagram of the exploded structure of the base, lead screw, connecting column and feeding table of the present invention; Figure 7 For the present invention Figure 1 Enlarged structure schematic diagram at position A in Figure 8 For the present invention Figure 5 Enlarged structure schematic diagram at position B in Figure 9 Schematic diagram of the overall structure of the feeding table, connecting plate and fixed clamping block of the present invention; Figure 10 Schematic diagram of the exploded structure of the connecting plate, gear, movable bar and fixed clamping block of the present invention; Figure 11 Exploded structure schematic diagram of the gear, movable bar, movable block and movable cylinder of the present invention; Figure 12 Schematic diagram of the side sectional view of the connecting plate, gear, movable bar and movable block of the present invention; Figure 13 Exploded structure schematic diagram of the supporting blanking table, movable bracket, auxiliary roller and fixing bolt of the present invention; Figure 14 Schematic diagram of the overall structure of the fixed bracket, mounting plate, laser cutting head, supporting blanking table and movable frame of the present invention; Figure 15 Bottom view structure schematic diagram of the mounting plate, laser cutting head, protective side plate and cooling nozzle of the present invention; Figure 16 Schematic diagram of the overall structure of the movable frame, mounting bracket and vertical rail of the present invention; Figure 17 For the present invention Figure 16 Enlarged structure schematic diagram at position C in Figure 18 Exploded structure schematic diagram of the movable frame, mounting block, mounting bracket and fixed-length baffle of the present invention.

[0017] In the figure: 1. Base; 2. First servo motor; 3. Lead screw; 4. Connecting column; 5. Loading table; 6. Linear guide rail; 7. Second servo motor; 8. Connecting plate; 9. Clamping mechanism; 10. Gear; 11. Movable bar; 12. Movable block; 13. Fixed clamping block; 14. Movable cylinder; 15. Fixed rod; 16. Fixed cap; 17. Supporting unloading table; 18. Movable support; 19. Auxiliary roller; 20. Fixed bolt; 21. Fixed support; 22. Electric telescopic rod; 23. Mounting plate; 24. Vertical rail; 25. Laser cutting head; 26. Cooling mechanism; 27. Protective side plate; 28. Cooling pipe; 29. Cooling nozzle; 30. Length-determining mechanism; 31. Movable frame; 32. Mounting block; 33. Length-determining baffle; 34. Mounting bracket; 35. Limiting plate; 36. Convex block. Detailed implementation manner

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 18 , the present invention provides the following technical solutions: Embodiment 1: To solve the problem in the prior art that when cutting a steel pipe, since the steel pipe is cylindrical, most of the clamping mechanisms 9 for the steel pipe are provided with two or more. When clamping the steel pipe, it is necessary to operate a single clamping mechanism 9 multiple times to achieve the clamping and fixing of the steel pipe, and the operation steps are numerous and not simple enough. Therefore, in this embodiment, through the following technical solution, a laser cutting machine capable of rapid cooling is provided, which is provided with a base 1, a loading table 5, a connecting disk 8, a clamping mechanism 9, a movable cylinder 14, a fixing rod 15, a fixing cap 16, a supporting unloading table 17, a movable bracket 18, an auxiliary roller 19 and a fixing bolt 20. The connecting disk 8 is arranged at the upper end of the loading table 5, and a clamping mechanism 9 is arranged in the middle of the connecting disk 8. The clamping mechanism 9 is composed of a gear 10, a movable strip 11, a movable block 12 and a fixed clamping block 13. The gear 10 is rotatably connected in the middle of the connecting disk 8, and movable strips 11 are meshed and connected to both the front and rear ends of the gear 10. One end of the movable strip 11 far from the gear 10 is fixedly connected with a movable block 12, and the movable block 12 forms a vertical sliding structure in the connecting disk 8. The movable strips 11 at the front and rear ends move in opposite directions in the connecting disk 8. The left end of the movable strip 11 is fixedly connected with a fixed clamping block 13 for clamping. The upper right end of the rear movable strip 11 is fixedly connected with a movable cylinder 14, and the movable cylinder 14 forms a vertical sliding structure at the upper right end of the connecting disk 8. A fixing rod 15 is penetrated through the middle of the movable cylinder 14, and a fixing cap 16 for locking and limiting is threadedly connected to the outer surface of the fixing rod 15. The fixing cap 16 is attached to the upper end of the movable cylinder 14, and the fixing rod 15 is fixedly connected to the right end of the connecting disk 8; Such as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 And Figure 12As shown in the figure, first place one end of the steel pipe to be cut at the left end of the connecting plate 8, and the steel pipe is located between the fixed clamping blocks 13 at the upper and lower ends of the left end of the connecting plate 8. Then, only by rotating the fixing cap 16 threadedly connected to the outer surface of the fixing rod 15, the fixing cap 16 pushes the movable cylinder 14 to slide between the fixing rod 15. At this time, the movable cylinder 14 slides between the connecting plate 8, and the movable cylinder 14 drives the rear movable bar 11 to move downward. At this time, due to the meshing relationship between the movable bar 11 and the gear 10, the gear 10 is driven to rotate in the middle of the connecting plate 8. The movable bars 11 on the front and rear sides move towards each other between the movable bars 11. The movable bar 11 drives the movable block 12 to slide in the connecting plate 8, improving the stability of the movable bar 11 during the movement. The movable bar 11 drives the fixed clamping block 13 to stably clamp the steel pipe. The overall clamping operation process is very simple and fast. After the clamping is completed, by pulling up the auxiliary roller 19, the auxiliary roller 19 drives the movable bracket 18 to slide between the supporting blanking table 17, so that the auxiliary roller 19 is attached to the lower end of the steel pipe, thus facilitating the stable support of the steel pipe. Then, by rotating the fixing bolt 20, the supporting blanking table 17 and the movable bracket 18 can be limited; Embodiment 2: In order to solve the problem in the prior art that when cutting a long steel pipe, it is necessary to measure the length of the cut steel pipe multiple times, which is inconvenient for fixed-length cyclic batch cutting of the steel pipe and has a low cutting efficiency for the steel pipe. Therefore, in this embodiment, through the following technical solutions, a laser cutting machine that can be quickly cooled is provided with a fixed-length mechanism 30, a limiting plate 35 and a convex block 36. The fixed-length mechanism 30 is arranged at the left end of the base 1, and the fixed-length mechanism 30 is composed of a movable frame 31, a mounting block 32, a mounting bracket 34 and a fixed-length baffle 33. The movable frame 31 is respectively slidably connected to the front and rear sides of the lower end of the fixed bracket 21, and a mounting block 32 for support is slidably connected to the middle of the movable frame 31. The mounting block 32 is fixedly connected to the outer side of the lower end of the fixed bracket 21. The left side of the movable frame 31 is fixedly connected to the mounting bracket 34 by bolts, and a fixed-length baffle 33 is fixedly connected to the middle of the mounting bracket 34. The fixed-length baffle 33 is attached to the left side of the workpiece. The movable frame 31 together with the mounting bracket 34 drives the fixed-length baffle 33 to move left and right on the left side of the base 1. Both the upper and lower ends of the mounting block 32 are hinged to the limiting plate 35, and a torsion spring is arranged at the connection between the mounting block 32 and the limiting plate 35. The limiting plate 35 is snap-connected to the corresponding convex block 36, and the convex blocks 36 are equidistantly arranged at the upper and lower ends of the movable frame 31. A corresponding scale code is arranged below each convex block 36; As Figure 1 、 Figure 2 、 Figure 3 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 and Figure 18As shown in the figure, after the steel pipe clamping and supporting are completed, according to the requirements for the cutting length of the steel pipe, first fix the mounting bracket 34 on the left side of the movable frame 31 through bolts, so that the fixed-length baffle 33 can be installed at the left end of the base 1. Then, by flipping the limit plate 35, the limit plate 35 rotates on the mounting block 32, and the torsion spring at the connection between the limit plate 35 and the mounting block 32 undergoes elastic deformation. At this time, the limit plate 35 is disengaged from the convex block 36, thereby releasing the limit between the movable frame 31 and the mounting block 32. Then, pull the movable frame 31, and the movable frame 31 slides relative to the mounting block 32. The movable frame 31 moves left and right at the bottom of the fixed bracket 21. At this time, the movable frame 31 together with the fixed-length baffle 33 drives the mounting bracket 34 to move left and right on the left side of the base 1 to adjust the horizontal distance between the fixed-length baffle 33 and the laser cutting head 25. Just adjust it to the corresponding length of the steel pipe cutting according to the set scale code. After the adjustment is completed, directly release the limit plate 35. At this time, the torsion spring restores elastic deformation, driving the limit plate 35 to flip on the mounting block 32, so that the limit plate 35 is engaged with the convex block 36 at the corresponding position, thereby facilitating the limitation between the movable frame 31 and the mounting block 32 and realizing the positioning of the fixed-length baffle 33.

[0020] Embodiment 3: To solve the problems in the prior art that it is inconvenient to stably convey and support the steel pipes to be cut, and the temperature at the cut of the steel pipe is relatively high, and the cooling speed is slow by natural cooling, and the cut is prone to deformation. Therefore, in this embodiment, through the following technical solutions, a laser cutting machine capable of rapid cooling is provided, which is provided with a first servo motor 2, a lead screw 3, a connecting column 4, a loading table 5, a linear guide rail 6, a second servo motor 7, a fixed bracket 21, an electric telescopic rod 22, a mounting plate 23, a vertical rail 24, a laser cutting head 25 and a cooling mechanism 26. The right end of the base 1 is fixedly installed with a first servo motor 2, and the output end of the first servo motor 2 is fixedly connected with a lead screw 3. The first servo motor 2 drives the lead screw 3 to rotate in the middle of the base 1, and the lead screw 3 is threadedly connected with the connecting column 4. The upper end of the connecting column 4 is fixedly connected with a loading table 5, and the loading table 5 and the linear guide rail 6 form a left-right sliding structure. The linear guide rail 6 is fixedly connected to the upper end of the base 1. The upper right end of the loading table 5 is fixedly installed with a second servo motor 7, and the output end of the second servo motor 7 is fixedly connected with a connecting disc 8. A supporting unloading table 17 is arranged on the left side of the linear guide rail 6, and the supporting unloading table 17 is fixedly connected to the left side of the base 1. The right end of the supporting unloading table 17 is telescopically connected with a movable bracket 18. The upper end of the movable bracket 18 is rotatably connected with an auxiliary roller 19, and the auxiliary roller 19 is attached to the lower end of the workpiece. The movable bracket 18 and the supporting unloading table 17 are limited by a fixing bolt 20, and both between the fixing bolt 20 and the movable bracket 18 and between the fixing bolt 20 and the supporting unloading table 17 are threadedly connected. The upper end of the fixed bracket 21 is fixedly installed with an electric telescopic rod 22, and the output end of the electric telescopic rod 22 is fixedly connected with a horizontally arranged mounting plate 23. The front and rear ends of the mounting plate 23 are both slidably connected with vertical rails 24, and the vertical rails 24 are respectively fixedly connected to the front and rear ends inside the fixed bracket 21. The middle of the lower end of the mounting plate 23 is installed with a laser cutting head 25, and the front and rear sides of the lower end of the mounting plate 23 are both fixedly connected with protective side plates 27. The cooling mechanism 26 is arranged in the middle of the fixed bracket 21, and the cooling mechanism 26 is composed of a protective side plate 27, a cooling pipe 28 and a cooling nozzle 29. The protective side plates 27 are symmetrically arranged at the front and rear ends of the laser cutting head 25. The cooling pipe 28 is fixedly connected to the inside of the front protective side plate 27, and cooling nozzles 29 are arranged at equal intervals at the rear end of the cooling pipe 28. The cooling pipe 28 is connected to a cold air blower installed on the upper end of the mounting plate 23. The cooling nozzles 29 are arranged obliquely on the cooling pipe 28 and face the lower part of the laser cutting head 25; Such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 13 , Figure 14 and Figure 15As shown in the figure, then start the first servo motor 2. The first servo motor 2 drives the lead screw 3 to rotate in the base 1. The lead screw 3 together with the connecting column 4 drives the feeding table 5 to slide between the linear guide 6. The feeding table 5 moves to the left to stably convey the steel pipe. At the same time, start the second servo motor 7 to drive the connecting plate 8 to rotate at the upper end of the feeding table 5. The connecting plate 8 drives the steel pipe to rotate, which is convenient for rotating and cutting the steel pipe. The auxiliary roller 19 is used to assist in supporting the steel pipe to improve the stability of the steel pipe during transportation. When the left end of the steel pipe abuts against the fixed-length baffle 33, the central processor controls the first servo motor 2 to turn off and stop conveying the steel pipe. At the same time, the central processor controls the start of the electric telescopic rod 22, the laser cutting machine, the laser generator and the cold air blower. The electric telescopic rod 22 pushes the mounting plate 23 to move downward. The mounting plate 23 slides between the vertical rails 24 to improve the stability of the mounting plate 23 during lifting and moving. The mounting plate 23 drives the laser cutting head 25 to move downward to the corresponding cutting position, and the steel pipe is cut through the mounting plate 23. And during the actual cutting process, the cold air blower blows the cold air out through the cooling nozzle 29 after passing through the cooling pipe 28. The cold air directly blows to the cutting position of the steel pipe, so that the cutting position can be quickly cooled, preventing the temperature at the cutting position from being too high and deforming. After the steel pipe is cut off, it directly falls to the lower left end of the base 1 for blanking, and can be collected by arranging a storage box at the lower left end of the base 1. Then repeat the above operations for conveying and cutting, which can realize continuous fixed-length cutting of the steel pipe and has a high cutting efficiency.

[0021] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A laser cutting machine that can be quickly cooled, comprising a base (1), a loading table (5), a fixed bracket (21) and a laser cutting head (25), and the laser cutting head (25) is connected to the laser cutting machine and a laser generator; It is characterized in that It further includes: A connecting disk (8), the connecting disk (8) is arranged at the upper end of the loading table (5), and a clamping mechanism (9) is arranged in the middle of the connecting disk (8), and the clamping mechanism (9) is composed of a gear (10), a movable strip (11), a movable block (12) and a fixed clamping block (13); A cooling mechanism (26), the cooling mechanism (26) is arranged in the middle of the fixed bracket (21), and the cooling mechanism (26) is composed of a protective side plate (27), a cooling pipe (28) and a cooling nozzle (29), and the protective side plates (27) are symmetrically arranged at the front and rear ends of the laser cutting head (25); A fixed-length mechanism (30), the fixed-length mechanism (30) is arranged at the left end of the base (1), and the fixed-length mechanism (30) is composed of a movable frame (31), a mounting block (32), a mounting bracket (34) and a fixed-length baffle (33).

2. The laser cutting machine capable of rapid cooling according to claim 1, wherein: A first servo motor (2) is fixedly installed at the right end of the base (1), and the output end of the first servo motor (2) is fixedly connected to a lead screw (3). The first servo motor (2) drives the lead screw (3) to rotate in the middle of the base (1), and the lead screw (3) is threadedly connected to a connecting column (4). The upper end of the connecting column (4) is fixedly connected to a loading table (5), and the loading table (5) and a linear guide rail (6) form a left-right sliding structure; Among them, the linear guide rail (6) is fixedly connected to the upper end of the base (1).

3. A laser cutting machine capable of rapid cooling according to claim 2, characterized in that: A second servo motor (7) is fixedly installed at the upper right end of the loading table (5), and the output end of the second servo motor (7) is fixedly connected to a connecting disk (8).

4. A laser cutting machine capable of rapid cooling according to claim 3, characterized in that: A gear (10) is rotatably connected to the middle of the connecting disk (8), and movable strips (11) are meshed and connected to both the front and rear ends of the gear (10). One end of the movable strip (11) away from the gear (10) is fixedly connected to a movable block (12), and the movable block (12) forms an up-and-down sliding structure in the connecting disk (8).

5. A laser cutting machine capable of rapid cooling according to claim 4, characterized in that: The movable strips (11) at the front and rear ends and the movable strips (11) move in opposite directions in the connecting disk (8). The left end of the movable strip (11) is fixedly connected to a fixed clamping block (13) for clamping. The upper right end of the rear movable strip (11) is fixedly connected to a movable cylinder (14), and the movable cylinder (14) forms an up-and-down sliding structure at the upper right end of the connecting disk (8). A fixed rod (15) is penetrated through the middle of the movable cylinder (14), and a fixed cap (16) for locking and limiting is threadedly connected to the outer surface of the fixed rod (15); Among them, the fixed cap (16) is attached to the upper end of the movable cylinder (14), and the fixed rod (15) is fixedly connected to the right end of the connecting disk (8).

6. The laser cutting machine capable of rapid cooling according to claim 2, wherein: On the left side of the linear guide rail (6), there is a supporting blanking table (17), and the supporting blanking table (17) is fixedly connected to the left side of the base (1). The right end of the supporting blanking table (17) is telescopically connected with a movable bracket (18). The upper end of the movable bracket (18) is rotatably connected with an auxiliary roller (19), and the auxiliary roller (19) is arranged in contact with the lower end of the workpiece. At the same time, the movable bracket (18) and the supporting blanking table (17) are limited by a fixing bolt (20), and both between the fixing bolt (20) and the movable bracket (18) and between the fixing bolt (20) and the supporting blanking table (17) are in threaded connection.

7. A laser cutting machine capable of rapid cooling according to claim 1, characterized in that: At the upper end of the fixed bracket (21), an electric telescopic rod (22) is fixedly installed, and the output end of the electric telescopic rod (22) is fixedly connected with a horizontally arranged mounting plate (23). The front and rear ends of the mounting plate (23) are both slidably connected with vertical rails (24), and the vertical rails (24) are respectively fixedly connected to the front and rear ends inside the fixed bracket (21). At the same time, a laser cutting head (25) is installed in the middle of the lower end of the mounting plate (23), and protective side plates (27) are fixedly connected to both the front and rear sides of the lower end of the mounting plate (23).

8. A laser cutting machine capable of rapid cooling according to claim 1, characterized in that: A cooling pipe (28) is fixedly connected to the inside of the front protective side plate (27), and cooling nozzles (29) are arranged at equal intervals at the rear end of the cooling pipe (28). The cooling pipe (28) is connected to a cold air blower installed at the upper end of the mounting plate (23). The cooling nozzles (29) are arranged obliquely on the cooling pipe (28) and face the lower part of the laser cutting head (25).

9. A laser cutting machine capable of rapid cooling according to claim 1, characterized in that: The movable frames (31) are respectively slidably connected to the front and rear sides of the lower end of the fixed bracket (21), and a mounting block (32) for support is slidably connected to the middle of the movable frame (31). The mounting block (32) is fixedly connected to the outer side of the lower end of the fixed bracket (21). Among them, the left side of the movable frame (31) is fixedly connected with a mounting bracket (34) through bolts, and a fixed-length baffle (33) is fixedly connected to the middle of the mounting bracket (34). The fixed-length baffle (33) is arranged in contact with the left side of the workpiece. The movable frame (31) together with the mounting bracket (34) drives the fixed-length baffle (33) to move left and right on the left side of the base (1).

10. A laser cutting machine capable of rapid cooling according to claim 9, characterized in that: Both the upper and lower ends of the mounting block (32) are hinged with limit plates (35), and a torsion spring is arranged at the connection between the mounting block (32) and the limit plates (35). The limit plates (35) are snap-connected with the corresponding convex blocks (36), and the convex blocks (36) are arranged at equal intervals at the upper and lower ends of the movable frame (31). At the same time, a corresponding scale code is arranged below each convex block (36).

Images