Laser cutting device for processing steel structure door leaf

Abstract

The utility model proposes a laser cutting device for processing steel structure door leaves, which is used to solve the problem in the prior art that the motor often changes direction, resulting in reduced cutting accuracy. A laser cutting device for processing steel structure door leaves, including a bracket, the top surface of the bracket has multiple rollers rotating, the rollers are higher than the top surface of the bracket, the rollers are connected to a feeding motor, a door-shaped frame is fixed to the bracket, a moving block is connected to the frame through a horizontal moving device, a lifting device is fixed to the moving block, a fixed frame is rotated at the bottom end of the lifting device, a rotating motor is fixed in the fixed frame, the output shaft of the rotating motor passes through the bottom surface of the fixed frame, an eccentric device is fixed at the bottom end of the output shaft, and a cutting gun slides on the bottom surface of the eccentric device. The utility model only needs to rotate the motor to rotate, and there is no need to frequently change the direction of the motor like a dual-axis drive, thereby improving the cutting efficiency and the quality of the cut hole.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary equipment for processing civil air defense doors, in particular to a laser cutting device for processing steel structure door leaves. Background Art

[0002] During the processing of civil air defense doors, it is necessary to process many connecting holes on the door panel to connect the door panel with the door frame. The connecting holes are usually processed by drilling. After the connecting holes are processed, the door panel is fixed to the door frame by riveting. Manual drilling is time-consuming and labor-intensive.

[0003] The existing Chinese patent with application number 202220129260.9 discloses a laser cutting positioning device for the locking sleeve hole of the civil air defense door leaf panel. The device places the civil air defense door leaf panel on the placement seat through the positioning device, and realizes the cutting of the civil air defense door leaf hole by moving the positioning device and cooperating with the movement of the laser cutting head. The above scheme has the following defects. The scheme cuts the civil air defense door leaf panel through the dual motor drive of the positioning device and the laser cutting head. When cutting the circular hole, both the dual motors need to be frequently reversed, and frequent reversal will affect the service life of the drive motor, resulting in reduced cutting accuracy. In addition, due to the positioning restriction of the door leaf by its positioning device, the laser cutting head cannot move in multiple directions, and the laser cutting head can only cut at a specific position of the civil air defense door leaf panel. In addition, the positioning device of the scheme needs to be higher than the placement seat, resulting in that when the civil air defense door leaf panel is prevented from entering the placement seat, it is also necessary to be careful whether the civil air defense door leaf panel will cause a bump on the positioning device, which greatly affects the production efficiency of batch processing. Utility Model Content

[0004] The utility model provides a laser cutting device for processing steel structure door leaves, which solves the problem in the prior art that the cutting precision is reduced due to frequent direction changes of the motor.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A laser cutting device for processing steel structure door leaves comprises a bracket, a top surface of the bracket is provided with a plurality of rotating rollers, the rollers are higher than the top surface of the bracket, the rollers are connected to a feeding motor, a door-shaped frame is fixed on the bracket, a moving block is connected to the frame via a horizontal moving device, a lifting device is fixed on the moving block, a fixed frame is fixed at the bottom end of the lifting device, a rotating motor is fixed in the fixed frame, an output shaft of the rotating motor passes through the bottom surface of the fixed frame, an eccentric device is fixed at the bottom end of the output shaft, a cutting gun is slidably arranged on the eccentric device.

[0007] Furthermore, the eccentric device includes a rotating block fixed to the end of the output shaft, a telescopic rack slides in the rotating block, the telescopic rack is perpendicular to the output shaft, one end of the telescopic rack is fixedly connected to the cutting gun, and the other end is inserted into a rotating box connected to the fixed frame, a driving motor is fixed in the rotating box, the driving motor is meshed with the telescopic rack through a gear, and a discharging telescopic rod is fixed to the bottom surface of the rotating block. Through the meshing of the driving motor and the telescopic rack, the distance between the cutting gun and the output shaft can be easily adjusted, thereby realizing accurate control of the radius of the cutting circular hole.

[0008] Furthermore, the brackets at both ends of the roller shaft are provided with fixing plates, which are connected to limiting plates through telescopic devices, and the limiting plates are provided with rotating rods perpendicular to the top surface of the brackets. The telescopic function of the limiting plates allows the position of the limiting plates to be adjusted when positioning the civil air defense door leaf panels to adapt to civil air defense door leaf panels of different thicknesses or sizes, ensuring that the civil air defense door leaf panels remain stable during the cutting process and will not tilt.

[0009] Furthermore, an upper pressing plate is fixed to the top of the limit plate, the bottom surface of the upper pressing plate is connected to a limit telescopic rod, the limit telescopic rod is connected to the limit pressing plate, and a plurality of limit rotating rods parallel to the roller shaft are rotated on the limit pressing plate. By ensuring that the civil air defense door leaf panel can stably move with the roller shaft, production delays and downtime caused by sliding or slipping can be reduced, which helps to improve production efficiency and reduce production costs.

[0010] Furthermore, the eccentric device includes a connecting rod fixed to the end of the output shaft, a double-moving linear motor group is fixed to the bottom surface of the connecting rod, two moving parts slide on the double-moving linear motor group, one moving part is connected to the cutting gun, and a discharging telescopic rod is fixed to the other moving part. Since the linear motor has a fast response speed and high acceleration, it can quickly move the cutting gun to the target position, shorten the non-production time, and improve the overall cutting efficiency.

[0011] Furthermore, the bottom of the unloading telescopic rod is conical, and a recovery bin corresponding to the frame is provided below the bracket. The conical structure can effectively guide the waste to the recovery bin, reduce the scattering or splashing of waste, and the recovery bin effectively collects the scraps and keeps the working area clean.

[0012] Furthermore, an air suction pipe is provided on the fixing frame, and the air inlet of the air suction pipe faces the welding gun. By sucking away the smoke and dust in the cutting area, the visibility of the operator can be improved, so as to facilitate the monitoring of the cutting process.

[0013] Beneficial effects:

[0014] The utility model cuts a circle by directly rotating the rotating motor, which reduces the frequent direction changes of the motor during dual-axis drive and improves the efficiency of cutting circular holes. The size of the cut circular hole can be conveniently adjusted by adjusting the horizontal distance from the axis of the cutting gun to the axis of the output shaft. Through the cooperation of the feeding motor, the lifting motor and the rotating motor, the feeding, lifting and cutting processes of the civil air defense door leaf panel can be automated, which not only reduces the need for manual operation, but also improves production efficiency and processing accuracy. Through the unloading telescopic rod, a certain pressure can be applied to the scraps produced after cutting, making it easier for the scraps to detach from the civil air defense door leaf panel, which not only reduces the trouble of manual cleaning, but also improves the fluency of the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of an embodiment of the eccentric device of the utility model.

[0020] Among them: 1. bracket, 2. roller, 3. feeding motor, 4. frame, 5. moving block, 6. fixed frame, 7. output shaft, 8. cutting gun, 9. rotating block, 10. telescopic rack, 11. rotating box, 12. driving motor, 13. unloading telescopic rod, 14. fixed plate, 15. limit plate, 16. rotating rod, 17. upper pressure plate, 18. limit telescopic rod, 19. limit pressure plate, 20. connecting rod, 21. double-acting linear motor group, 22. recovery bin, 23. suction pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-4 As shown, an embodiment of the utility model provides a laser cutting device for processing steel structure door leaves, including a bracket 1, a plurality of rollers 2 are rotatably arranged on the top surface of the bracket 1, the rollers 2 are higher than the top surface of the bracket 1, the rollers 2 are connected to a feeding motor 3, a door-shaped frame 4 is fixed to the bracket 1, a moving block 5 is connected to the frame 4 through a horizontal moving device, a lifting device is fixed to the moving block 5, a fixed frame 6 is fixed to the bottom end of the lifting device, a rotating motor is fixed in the fixed frame 6, an output shaft 7 of the rotating motor passes through the bottom surface of the fixed frame 6, an eccentric device is fixed to the bottom end of the output shaft 7, a cutting gun 8 is slidably arranged on the eccentric device.

[0023] The lifting device can be a vertically arranged lifting rack, a sleeve for the lifting rack to slide is fixed on the side wall of the moving block 5, and the lifting rack moves up and down through the gear of the lifting motor. The lifting device can also be a telescopic rod, such as an electric push rod or a piston hydraulic rod, etc. The lifting motor, the feeding motor 3 and the telescopic rod are all prior art. The horizontal moving device can move the moving block 5 in a direction parallel to the axis of the roller shaft, and the horizontal moving device is prior art.

[0024] When in use, the civil air defense door leaf panel is placed from one end of the bracket 1, and the civil air defense door leaf panel is moved on the roller shaft 2 by rotating the roller shaft 2. The lifting device makes the cutting end of the cutting gun 8 close to the civil air defense door leaf panel through the fixed frame 6 and the rotating block 9. When it is necessary to cut a circular hole, the output shaft 7 is placed above the center of the circular hole to be cut. The output shaft 7 of the rotating motor drives the telescopic rack 10 to rotate along the output shaft 7 through the rotating block 9. The rotating motor rotates one circle and drives the cutting gun 8 to cut the circular hole. In order to facilitate the adjustment of the size of the cut circular hole, the horizontal distance from the axis of the cutting gun 8 to the axis of the output shaft 7 can be adjusted to achieve the effect of adjusting the radius of the cut circular hole. During the cutting process, the roller and the moving block 5 cooperate to cut the steel coil that has just been unrolled but not divided, and the civil air defense door leaf panel can also be cut. When the steel coil is used as the raw material, the time for placing the civil air defense door leaf panel on the bracket 1 can be reduced, which greatly improves the processing efficiency. When it is necessary to cut other shapes, the friction between the roller 2 and the civil air defense door panel is used to move the civil air defense door panel, and then the movement of the moving block 5 is coordinated to achieve the effect of cutting different shapes.

[0025] like Figure 1 , 4As shown, the eccentric device includes a rotating block 9 fixed at the end of the output shaft 7, a telescopic rack 10 is slid in the rotating block 9, and the telescopic rack 10 is perpendicular to the output shaft 7. One end of the telescopic rack 10 is fixedly connected to the cutting gun 8, and the other end is inserted into a rotating box 11 connected to the fixed frame 6. A driving motor 12 is fixed in the rotating box 11, and the driving motor 12 is meshed with the telescopic rack 10 through a gear. A discharging telescopic rod 13 is fixed to the bottom surface of the rotating block 9. Through the meshing of the driving motor 12 and the telescopic rack 10, the distance between the cutting gun 8 and the output shaft 7 can be accurately adjusted, so as to facilitate the adjustment of the rotation radius of the cutting circular hole. The scraps generated during the cutting process may not fall off naturally. Through the telescopic effect of the discharging telescopic rod 13, pressure can be applied to the scraps, so that the scraps are separated from the civil air defense door panel, and automatic discharging is realized, reducing the workload of manual cleaning. Through the cooperation of the fixed frame 6 and the rotating box 11, the stability of the entire eccentric device is enhanced, ensuring the accuracy and safety during the rotary cutting process.

[0026] like Figure 1 , 2 As shown, a fixing plate 14 is provided on the bracket 1 at both ends of the roller shaft 2, and the fixing plate 14 is connected to a limiting plate 15 through a telescopic device, and a rotating rod 16 perpendicular to the top surface of the bracket 1 is provided on the limiting plate 15. The telescopic device can be a hydraulic rod or an electric push rod, etc., and the telescopic device is a prior art. In order to improve the processing accuracy and prevent the cutting error caused by the offset of the civil air defense door leaf panel, when positioning the civil air defense door leaf panel, the two sides of the civil air defense door leaf panel are simultaneously extended and retracted through the limiting plate 15, which can effectively prevent the inclination and offset of the civil air defense door leaf panel during the cutting process, thereby reducing the cutting error and improving the processing accuracy. The end of the civil air defense door leaf panel can use the end of the bracket 1 as a reference, or a detachable limiting rod can be fixed at the end of the bracket 1 to achieve accurate positioning of the civil air defense door leaf panel. By adjusting the position of the limiting plate 15 by the telescopic device, it can adapt to civil air defense door leaf panels of different widths, increasing the scope of application of the equipment. Since the civil air defense door leaf panel can be positioned quickly and accurately, the efficiency of the entire cutting process is improved during mass production. The setting of the rotating rod 16 allows the civil air defense door leaf panel to have a certain degree of sliding freedom relative to the fixed plate 14 during the processing, thereby reducing the friction between the civil air defense door leaf panel and the fixed plate 14, and can effectively reduce the wear rate of the equipment.

[0027] An upper pressure plate 17 is fixed to the top of the limit plate 15, and a limit telescopic rod 18 is connected to the bottom of the upper pressure plate 17. The limit telescopic rod 18 is connected to a limit pressure plate 19, and a plurality of limit rotation rods parallel to the roller shaft 2 are rotated on the limit pressure plate 19. In order to prevent the roller shaft 2 from being unable to drive the civil air defense door leaf panel to move by friction, the pressure applied by the limit pressure plate 19 can increase the friction between the civil air defense door leaf panel and the roller shaft 2, ensuring that the roller shaft 2 can effectively drive the civil air defense door leaf panel to move, and can reduce the processing error caused by sliding or displacement, thereby improving the processing accuracy. The friction between the limit pressure plate and the civil air defense door leaf panel can be reduced by the limit rotation rod, and by adjusting the limit telescopic rod 18, it can adapt to civil air defense door leaf panels of different thicknesses, so that the equipment has better adaptability and flexibility.

[0028] like Figure 1 , 3 As shown, the eccentric device includes a connecting rod 20 fixed to the end of the output shaft 7, and a double-acting linear motor group 21 is fixed to the bottom surface of the connecting rod 20. Two movers slide on the double-acting linear motor group 21, one mover is connected to the cutting gun 8, and the other mover is fixed to the unloading telescopic rod 13. The double-acting linear motor group 21 is a prior art. The mover can control the position of the unloading telescopic rod 13 to knock the edge of the scrap along the cutting path, and quickly separate the scrap generated by the cutting from the main material. The double-acting linear motor group 21 can independently control the movement of the two movers, one mover is used to control the position of the cutting gun 8, and the other mover is used to control the movement of the unloading telescopic rod 13, so as to achieve high-precision cutting and unloading operations and improve work efficiency. The double-acting linear motor group 21 can achieve high-precision position control, thereby ensuring that the cutting gun 8 and the unloading telescopic rod 13 can be accurately moved to the predetermined position, thereby improving processing accuracy.

[0029] The bottom of the unloading telescopic rod 13 is conical, and a recovery bin 22 corresponding to the frame 4 is provided below the bracket 1. The conical bottom surface can adapt to circular holes of different sizes, and can make the unloading telescopic rod 13 apply force to the scraps more concentratedly when knocking, and the conical bottom surface can separate the scraps more effectively. The recovery bin 22 provided below the bracket 1 corresponds to the frame 4, so that the scraps knocked down can directly fall into the recovery bin 22, thereby improving the collection efficiency of the scraps. The scraps can be cleaned regularly through the recovery bin 22, which is convenient for the recycling and reuse of the scraps.

[0030] The fixing frame 6 is provided with an air intake pipe 23, the air inlet of which faces the welding gun. The air intake pipe 23 is connected to an industrial air filter, both of which are prior art. The smoke and harmful gases generated during the cutting process can be sucked away in time by the air intake pipe 23, thereby reducing air pollution and protecting the health of the operator. While sucking away the smoke and dust, the air intake pipe 23 may also take away some heat, thus having a certain cooling effect on the cutting area.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cutting device for processing steel structure door leaves, comprising a bracket (1), characterized in that: The top surface of the support (1) is provided with a plurality of rollers (2) for rotation, the rollers (2) being higher than the top surface of the support (1), the rollers (2) being connected to a feeding motor (3), a door-shaped frame (4) being fixed on the support (1), the frame (4) being connected to a moving block (5) via a horizontal moving device, a lifting device being fixed on the moving block (5), a fixing frame (6) being fixed at the bottom end of the lifting device, a rotating motor being fixed inside the fixing frame (6), an output shaft (7) of the rotating motor penetrating the bottom surface of the fixing frame (6), an eccentric device being fixed at the bottom end of the output shaft (7), a cutting gun (8) being slidably mounted on the eccentric device.

2. A laser cutting device for processing steel structure door leafs according to claim 1, characterized in that: The eccentric device comprises a rotating block (9) fixed at the end of an output shaft (7), a telescopic rack (10) slidingly arranged in the rotating block (9), the telescopic rack (10) being perpendicular to the output shaft (7), one end of the telescopic rack (10) being fixedly connected to a cutting gun (8), and the other end of the telescopic rack (10) being inserted into a rotating box (11) connected to a fixed frame (6), a driving motor (12) being fixed in the rotating box (11), the driving motor (12) being meshed with the telescopic rack (10) via a gear, and a discharging telescopic rod (13) being fixed on the bottom surface of the rotating block (9).

3. The laser cutting device for processing steel structure door leaf according to claim 1, characterized in that: The brackets (1) at both ends of the roller shaft (2) are provided with fixing plates (14), the fixing plates (14) are connected to limiting plates (15) via telescopic devices, and the limiting plates (15) are provided with rotating rods (16) perpendicular to the top surface of the bracket (1).

4. The laser cutting device for processing steel structure door leaf according to claim 3, characterized in that: An upper pressing plate (17) is fixed to the top of the limiting plate (15), the bottom surface of the upper pressing plate (17) is connected to a limiting telescopic rod (18), the limiting telescopic rod (18) is connected to a limiting pressing plate (19), and a plurality of limiting rotating rods parallel to the roller shaft (2) are rotatably arranged on the limiting pressing plate (19).

5. The laser cutting device for processing steel structure door leaf according to claim 1, characterized in that: The eccentric device comprises a connecting rod (20) fixed to the bottom end of the output shaft (7), a double-moving linear motor group (21) being fixed to the bottom surface of the connecting rod (20), two moving parts sliding on the double-moving linear motor group (21), one moving part being connected to the cutting gun (8), and a discharging telescopic rod (13) being fixed to the other moving part.

6. A laser cutting device for processing steel structure door leaves according to any one of claims 2 or 5, characterized in that: The bottom of the unloading telescopic rod (13) is conical, and a recovery bin (22) corresponding to the frame (4) is provided below the bracket (1).

7. The laser cutting device for processing steel structure door leaf according to claim 1, characterized in that: An air suction pipe (23) is provided on the fixing frame (6), and an air inlet of the air suction pipe (23) faces the welding gun.

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