A laser drilling equipment for arc-shaped metal sheet processing

Abstract

The application discloses a kind of arc metal sheet processing with laser drilling equipment, it is related to laser drilling technical field, including bottom plate, the support frame is fixed on the bottom plate, the support frame is connected with oscillating frame on bearing, the oscillating frame is fixed with X, Y axis drive mechanism for realizing third cylinder, the X, Y axis direction adjustment effect of drilling mechanism.This arc metal sheet processing with laser drilling equipment, through motor drive eccentric rotation, push the linkage mechanism of multiple top rod synchronous equidistant lifting, drive multiple positioning rollers synchronous lifting until contact workpiece lower surface, since all positioning rollers are distributed around the same center angle and consistent with motion trajectory, no matter how change (arc height) arc workpiece, it can automatically adjust its center to coincide with the rotation center (i.e.eccentric shaft) set by equipment, so as to realize quick, high-precision self-adapting centering, significantly improve the versatility and change production efficiency of equipment.

Description

Technical Field

[0001] This invention relates to the field of laser drilling technology, specifically to a laser drilling device for processing curved metal sheets. Background Technology

[0002] In the field of metal processing, laser drilling of curved metal sheets is a common but technically demanding process. Traditional laser drilling equipment is mainly designed for planar workpieces, and when applied to curved surfaces, it faces a series of technical bottlenecks:

[0003] 1. Due to the curvature of the workpiece, it is difficult to quickly and accurately determine its center and clamp it securely. Usually, special fixtures need to be customized for different radii of curvature, which has poor versatility, and the adjustment of the fixture is time-consuming, affecting the processing efficiency.

[0004] 2. The quality of laser drilling is highly dependent on the laser beam being perpendicular (normal) to the surface of the workpiece. For curved surfaces, the laser head needs to be able to automatically adjust its emission angle at different positions to maintain perpendicularity. Existing technologies mostly rely on complex multi-axis CNC systems for real-time calculation and compensation, which not only has high system costs, but also has extremely high requirements for workpiece consistency and clamping accuracy. Any slight positioning deviation will lead to processing defects.

[0005] 3. Laser drilling produces tiny molten waste materials (micro-chips or micro-pillars), which are easily adhered to curved surfaces due to surface tension, static electricity, or micro-melting. They are not easy to fall off naturally, and the residual waste materials may affect subsequent processes, contaminate equipment, or scratch the surface of the workpiece. Usually, additional cleaning steps or manual intervention are required, making the operation more cumbersome. Summary of the Invention

[0006] The purpose of this invention is to provide a laser drilling device for processing curved metal sheets, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a laser drilling device for processing arc-shaped metal sheets, comprising a base plate, a support frame fixed on the base plate, a swing frame connected to the support frame by a bearing, an X and Y axis drive mechanism fixed on the swing frame for adjusting the X and Y axis directions of the third cylinder and the drilling mechanism, and a third cylinder fixed on the X and Y axis drive mechanism;

[0008] The positioning mechanism is used to support and position arc-shaped workpieces of different sizes, and to ensure that the center of the arc-shaped workpiece coincides with the rotation center of the swing frame. The positioning mechanism is installed on the support frame, and a clamping mechanism for clamping and positioning the arc-shaped workpiece is also fixed on the positioning mechanism.

[0009] The drilling mechanism is used to drill holes in the arc-shaped workpiece and assist in the removal of waste materials. The drilling mechanism is installed at the output end of the third cylinder.

[0010] Preferably, the positioning mechanism includes a motor fixed on a support frame, and a rotating shaft is fixed to the output end of the motor. The rotating shaft and the support frame are connected by a bearing. An eccentric wheel is fixed on the rotating shaft. The rotation axis of the eccentric wheel coincides with the rotation axis of the swing frame. The motor can provide a basic force for the rotation of the rotating shaft and the eccentric wheel, thereby ensuring the normal operation of the device. By limiting the rotation axis of the eccentric wheel and the rotation axis of the swing frame, it can be ensured that the swing frame and the eccentric wheel rotate in the same circle.

[0011] Preferably, the eccentric wheel and the push rod are slidably connected, and the push rod and the arc frame are also slidably connected. The arc frame is fixed on the support frame, and a first spring connects the arc frame and the push rod. A bracket is also fixed on the push rod, and a positioning roller for positioning the arc workpiece is connected to the bracket by a bearing. The positioning rollers are distributed at at least three equal angles with respect to the center of the arc frame. The center of the arc frame is located on the rotation axis of the eccentric wheel. Through the sliding action between the eccentric wheel and the push rod, the position of the push rod relative to the arc frame can be adjusted, thereby adjusting the height of the positioning rollers to accommodate positioning of arc workpieces of different sizes. Combined with the elastic action of the first spring, it can provide a basic force for the automatic reset of the push rod and the positioning rollers.

[0012] Preferably, the arc-shaped frame has connecting rods fixed symmetrically on its sides, and the connecting rods are fixed to the top rod in the vertical direction. The connecting rods are fixed to the support plate, and the lower end face of the support plate is fixed with a guide rod. The guide rod is slidably connected to the support plate, and the support plate is symmetrically fixed to the support frame. The support plate is fixed with a clamping mechanism. When the top rod moves, it can simultaneously drive the connecting rod and the support plate to move, thereby realizing the height adjustment of the arc-shaped workpiece and ensuring that the center of the arc-shaped workpiece coincides with the center of the rotation axis for subsequent processing. When the support plate moves, the sliding guidance between the guide rod and the support plate can ensure the stability of the support plate movement.

[0013] Preferably, the clamping mechanism includes a vertical plate fixed to the support plate, a first cylinder fixed on the vertical plate, and a mounting plate fixed to the output end of the first cylinder. A movable plate is connected to the mounting plate by a bearing, and a torsion spring connects the movable plate and the mounting plate. Pressure rollers are symmetrically connected to the upper and lower bearings on the movable plate. Through the above structure, the clamping and positioning of the arc-shaped workpiece can be achieved, ensuring the stability of the arc-shaped workpiece. Furthermore, the angle of the pressure rollers can be adjusted by the rotation between the movable plate and the mounting plate to accommodate arc-shaped workpieces of different sizes for positioning.

[0014] Preferably, the swing frame is also symmetrically fixed with gears at the front and back, and the gears and racks are meshed. The rack is fixed to the output end of the second cylinder, and the second cylinder is fixed to the base plate. The second cylinder drives the rack to move. With the transmission action between the rack and the gears, it can provide a basic force for the rotation of the swing frame and the drilling mechanism, ensuring that the drilling mechanism is perpendicular to the drilling surface.

[0015] Preferably, the drilling mechanism includes a circular sleeve fixed to the output end of the third cylinder, and the circular sleeve is fixed to one end of the elastic air bag, and the other end of the elastic air bag is connected to the turntable by a bearing. At the same time, the turntable and the circular sleeve are slidably connected. A laser head is fixed to the lower end of the turntable. The laser head can realize the laser drilling of the arc-shaped workpiece, and the elasticity of the elastic air bag can provide a basic force for the movement of the turntable.

[0016] Preferably, a convex shaft is fixed on the turntable, and the convex shaft is slidably connected to the spiral groove opened in the circular sleeve. The sliding action between the convex shaft and the spiral groove can provide a basic force for the rotation of the turntable.

[0017] Preferably, the turntable is fixed to the upper end of the fixed rod, and an upper annular plate is fixed to the upper part of the fixed rod. A lower annular plate with its lower end face flush with the lower end face of the laser head is fixed to the lower end of the fixed rod. At the same time, a number of sliding rods are slidably connected to the lower annular plate at equal angles. A second spring is fixed between the sliding rod and the upper annular plate. Through the sliding action between the sliding rod and the lower annular plate, the position of the sliding rod can be adjusted. With the elastic action of the second spring, a basic force can be provided for the automatic reset of the sliding rod.

[0018] Preferably, the lower end of the slide bar is fixed with an installation sleeve, and the installation sleeve is equipped with a rolling ball. Through the action of the ball, it can provide force for subsequent waste separation and prevent waste from sticking to the arc-shaped workpiece.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This laser drilling equipment for processing arc-shaped metal sheets uses a motor to drive an eccentric wheel to rotate, which in turn drives a linkage mechanism that simultaneously raises and lowers multiple top rods at equal intervals. This mechanism causes multiple positioning rollers to rise synchronously until they contact the lower surface of the workpiece. Since all positioning rollers are distributed at equal angles around the same center and have the same movement trajectory, regardless of how the arc-shaped workpiece (arc height) changes, it can automatically adjust its center to coincide with the rotation center (i.e., the center of the eccentric wheel) set by the equipment. This achieves fast and high-precision adaptive centering, significantly improving the versatility and changeover efficiency of the equipment.

[0021] 2. This laser drilling equipment for processing arc-shaped metal sheets uses a linkage mechanism that drives the rotation of the swing frame through gear and rack transmission. Since the center of the arc-shaped workpiece is already aligned with the rotation center of the swing frame through the positioning mechanism, by simply controlling the swing frame to rotate at an appropriate angle, the laser head installed at its end can ensure that its laser emission axis always points to the common center, no matter where it is on the arc surface of the workpiece. This automatically ensures that the laser beam is perpendicular to the surface of the arc-shaped workpiece, thus transforming the problem of spatial angle adjustment into rotational control around a fixed axis. The structure is simple and reliable, fundamentally guaranteeing the drilling quality.

[0022] 3. This laser drilling equipment for processing curved metal sheets, through the action of the drilling mechanism, causes the ball bearings to first contact the curved surface when pressed down. Under the buffer of the elastic airbag and spring, the laser head adaptively determines the optimal focal length and locks. After drilling is completed, the laser head is raised. Under the reset action of the elastic airbag, the turntable and ball bearing assembly are driven to rotate through the cooperation of the convex shaft and the spiral groove. During rotation, some of the ball bearings will hit the surface of the workpiece, generating high-frequency micro-vibrations. This vibration can effectively break the adhesion between the waste material and the substrate, causing it to fall off immediately, avoiding subsequent manual cleaning and better meeting the actual use requirements. Attached Figure Description

[0023] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention;

[0024] Figure 2 This is a frontal three-dimensional structural diagram of the positioning mechanism of the present invention;

[0025] Figure 3 This is a bottom-view three-dimensional structural diagram of the positioning mechanism of the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the arc-shaped frame of the present invention, viewed from the front and in cross-section.

[0027] Figure 5 This is a three-dimensional structural diagram of the swing frame of the present invention viewed from below;

[0028] Figure 6 This is a frontal cross-sectional three-dimensional structural diagram of the drilling mechanism of the present invention;

[0029] Figure 7 This is a bottom-view cross-sectional three-dimensional structural diagram of the drilling mechanism of the present invention.

[0030] In the diagram: 1. Base plate; 2. Support frame; 3. Positioning mechanism; 301. Motor; 302. Rotating shaft; 303. Eccentric wheel; 304. Top rod; 305. Arc frame; 306. First spring; 307. Bracket; 308. Positioning roller; 309. Connecting rod; 310. Support plate; 311. Guide rod; 312. Support plate; 4. Clamping mechanism; 401. Vertical plate; 402. First cylinder; 403. Mounting plate; 404. Movable plate; 405. Pressing... 5. Roller; 6. Arc-shaped workpiece; 7. Swing frame; 8. Gear; 9. Rack; 10. Second cylinder; 11. X and Y axis drive mechanism; 2. Third cylinder; 3. Drilling mechanism; 4. Circular sleeve; 5. Elastic airbag; 6. Turntable; 7. Convex shaft; 8. Laser head; 906. Fixed rod; 907. Upper annular plate; 908. Lower annular plate; 909. Slide rod; 910. Second spring; 911. Mounting sleeve; 912. Ball bearing. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0032] Please see Figures 1-7 The present invention provides a technical solution: a laser drilling device for processing arc-shaped metal sheets, including a base plate 1, a support frame 2 fixed on the base plate 1, a swing frame 6 connected to the support frame 2 by bearings, and an X and Y axis drive mechanism 7 fixed on the swing frame 6 for adjusting the X and Y axis directions of the third cylinder 8 and the drilling mechanism 9. The third cylinder 8 is fixed on the X and Y axis drive mechanism 7.

[0033] The positioning mechanism 3 is used to support and position the arc-shaped workpiece 5 of different sizes, and to ensure that the center of the arc-shaped workpiece 5 coincides with the rotation center of the swing frame 6. The positioning mechanism 3 is installed on the support frame 2, and a clamping mechanism 4 for clamping and positioning the arc-shaped workpiece 5 is also fixed on the positioning mechanism 3.

[0034] The drilling mechanism 9 is used to drill holes in the arc-shaped workpiece 5 and assist in the removal of waste materials. The drilling mechanism 9 is installed at the output end of the third cylinder 8.

[0035] The positioning mechanism 3 includes a motor 301 fixed on the support frame 2, and a rotating shaft 302 fixed to the output end of the motor 301. The rotating shaft 302 is connected to the support frame 2 by a bearing. An eccentric wheel 303 is fixed on the rotating shaft 302, and the rotation axis of the eccentric wheel 303 coincides with the rotation axis of the swing frame 6. The eccentric wheel 303 is slidably connected to the push rod 304, and the push rod 304 is slidably connected to the arc frame 305. The arc frame 305 is fixed on the support frame 2, and a first spring 306 is connected between the arc frame 305 and the push rod 304. A bracket 307 is also fixed on the push rod 304, and a positioning roller 308 for positioning the arc-shaped workpiece 5 is connected to the bracket 307 by a bearing. The positioning roller 308 is distributed at at least three equal angles with respect to the center of the arc frame 305, and the center of the arc frame 305 is located at... The eccentric wheel 303 has a rotation axis; the arc frame 305 has connecting rods 309 fixed symmetrically on its sides, and the connecting rods 309 are fixed on the top rod 304 in the vertical direction. The connecting rods 309 are fixed to the support plate 310. At the same time, the lower end face of the support plate 310 is fixed with a guide rod 311. The guide rod 311 is slidably connected to the support plate 312. The support plate 312 is symmetrically fixed on the support frame 2. The support plate 310 is fixed with a clamping mechanism 4. The clamping mechanism 4 includes a vertical plate 401 fixed on the support plate 310. The vertical plate 401 is fixed with a first cylinder 402. The output end of the first cylinder 402 is fixed with a mounting plate 403. The mounting plate 403 is connected to a movable plate 404 by a bearing. A torsion spring is connected between the movable plate 404 and the mounting plate 403. The movable plate 404 is symmetrically connected to pressure rollers 405 by bearings.

[0036] When using laser drilling equipment for processing curved metal sheets, such as Figures 1-7As shown, the arc-shaped workpiece 5 to be processed is first placed on the pallet 310. At this time, the positioning roller 308 is located below the arc surface of the arc-shaped workpiece 5. By starting the motor 301, the rotating shaft 302 and the eccentric wheel 303 can be rotated. With the sliding action between the eccentric wheel 303 and the push rod 304, all the push rods 304 can be moved upward synchronously under force, and all the push rods 304 can move upward by the same distance. With the sliding action between the push rods 304 and the arc frame 305, the stability of the movement of the push rods 304 can be ensured. When the push rods 304 move upward, the bracket 307, the positioning roller 308, and the connecting rod are driven simultaneously. 309. The pallet 310 and the arc-shaped workpiece 5 move upward. With the sliding guidance between the guide rod 311 and the support plate 312, the stability of the movement of the pallet 310 and the arc-shaped workpiece 5 can be ensured until all the positioning rollers 308 contact the lower end face of the arc-shaped workpiece 5. Since the positioning rollers 308 are distributed at equal angles with respect to the arc frame 305 and the moving distance of all the positioning rollers 308 is equal, that is, the distance between the positioning rollers 308 and the rotation axis of the rotating shaft 302 is equal, so that the center of the arc-shaped workpiece 5 is exactly located on the rotation axis of the rotating shaft 302, thereby realizing the center positioning function of the arc-shaped workpiece 5.

[0037] After the center of the arc-shaped workpiece 5 is positioned, the first cylinder 402 is activated, which drives the mounting plate 403, the movable plate 404 and the pressure roller 405 to move toward the arc-shaped workpiece 5. When the pressure roller 405 contacts the arc-shaped workpiece 5, the tilt angle of the two pressure rollers 405 on the movable plate 404 can be adjusted by the rotation between the movable plate 404 and the mounting plate 403, so that both pressure rollers 405 on the movable plate 404 can contact the arc-shaped workpiece 5, thereby realizing the clamping and limiting function of the arc-shaped workpiece 5, ensuring the stability of the arc-shaped workpiece 5, so as to facilitate subsequent processing.

[0038] Based on the above principle, by rotating the eccentric wheel 303 and cooperating with the sliding action between the eccentric wheel 303 and the push rod 304, the position adjustment of the positioning roller 308, the support plate 310 and the arc-shaped workpiece 5 can be realized, so as to adapt to the center positioning of arc-shaped workpieces 5 of different sizes. In addition, with the clamping and limiting action of the pressure roller 405, the stability of the arc-shaped workpiece 5 can be guaranteed.

[0039] The swing frame 6 is also symmetrically fixed with gears 601, and the gears 601 and rack 602 are meshed together. The rack 602 is fixed to the output end of the second cylinder 603, and the second cylinder 603 is fixed to the base plate 1. The drilling mechanism 9 includes a sleeve 901 fixed to the output end of the third cylinder 8. The sleeve 901 is fixed to one end of the elastic airbag 902, and the other end of the elastic airbag 902 is bearing connected to the turntable 903. The turntable 903 and the sleeve 901 are slidably connected. A laser head 905 is fixed to the lower end of the turntable 903. A convex shaft 9 is fixed on the turntable 903. 04, and the convex shaft 904 is slidably connected to the spiral groove opened in the sleeve 901; the turntable 903 is fixed to the upper end of the fixed rod 906, and an upper annular plate 907 is fixed to the upper part of the fixed rod 906, and a lower annular plate 908 with its lower end face flush with the lower end face of the laser head 905 is fixed to the lower end of the fixed rod 906. At the same time, several sliding rods 909 are slidably connected at equal angles on the lower annular plate 908, and a second spring 910 is fixed between the sliding rod 909 and the upper annular plate 907; an mounting sleeve 911 is fixed to the lower end of the sliding rod 909, and a rolling ball 912 is installed on the mounting sleeve 911;

[0040] After the arc-shaped workpiece 5 is positioned, when drilling holes in the arc-shaped workpiece 5, as follows: Figures 1-7 As shown, the X and Y axis drive mechanism 7 can adjust the position of the laser head 905 in all directions. The extension and retraction of the third cylinder 8 can adjust the height of the laser head 905. The extension and retraction of the second cylinder 603 can move the rack 602. With the meshing transmission between the rack 602 and the gear 601, the swing frame 6 can rotate, thereby adjusting the tilt angle of the laser head 905 and ensuring that the laser head 905 is perpendicular to the cutting surface of the arc-shaped workpiece 5 for subsequent processing. Furthermore, since the rotation axis of the eccentric wheel 303 coincides with the rotation axis of the swing frame 6, the position of the laser head 905 on the surface of the arc-shaped workpiece 5 remains unchanged during the rotation process, so as to facilitate processing.

[0041] When drilling holes in the arc-shaped workpiece 5, the third cylinder 8 extends, which drives the circular sleeve 901, laser head 905, and ball bearing 912 to move downward. When any ball bearing 912 contacts the surface of the arc-shaped workpiece 5, the third cylinder 8 continues to extend, which drives the circular sleeve 901 to move downward. Combined with the elastic action of the elastic airbag 902 and the elastic action of the second spring 910, the turntable 903 can move upward relative to the circular sleeve 901, and the mounting sleeve 911 and ball bearing 912 can move upward relative to the lower annular plate 908. When any mounting sleeve 911 contacts the lower annular plate 908, positioning is achieved, thereby achieving the positioning function of the laser head 905 and ensuring that the distance between the laser head 905 and the arc-shaped workpiece 5 remains unchanged.

[0042] As the turntable 903 moves upward relative to the sleeve 901, the sliding action between the cam shaft 904 and the spiral groove within the sleeve 901 allows the turntable 903 and the balls 912 to rotate until the cam shaft 904 slides to the uppermost end of the spiral groove within the sleeve 901. At this point, the laser head 905 can be activated to perform laser drilling on the arc-shaped workpiece 5. The adjustment action of the X and Y axis drive mechanism 7 and the deflection action of the swing frame 6 ensure the normal drilling of the arc-shaped workpiece 5. After drilling is completed, the retraction of the third cylinder 8 resets the turntable 903 and the laser head 905. During the reset process, the elasticity of the elastic airbag 902 causes the turntable 903 to move downward relative to the sleeve 901. At this point, at least two balls 912 are in contact with the arc-shaped workpiece 5. As the turntable 903 moves downward relative to the sleeve 901, the sliding action between the cam shaft 904 and the spiral groove within the sleeve 901 allows... The turntable 903 rotates, which in turn drives the fixed rod 906, the upper annular plate 907, the lower annular plate 908, and the ball bearings 912 to rotate synchronously. Since the second spring 910 above the ball bearing 912 at the corresponding position in contact with the arc-shaped workpiece 5 is in a compressed state, when the ball bearing 912 in contact with the arc-shaped workpiece 5 separates from the top surface of the arc-shaped workpiece 5, the elastic action of the second spring 910 can cause the ball bearing 912 to move downward, generating a certain impact on the arc-shaped workpiece 5. In addition, other rotating balls bearing 912 can also impact the arc-shaped workpiece 5. Through the rotation of multiple balls bearing 912, multiple balls bearing 912 can impact the arc-shaped workpiece 5, causing the arc-shaped workpiece 5 to vibrate. Thus, after drilling, when the waste material adheres to the arc-shaped workpiece 5, the impact of the balls bearing 912 on the arc-shaped workpiece 5 can effectively shake off the waste material, thereby achieving the function of assisting in waste removal and better meeting processing requirements.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A laser drilling device for processing arc-shaped metal sheets, comprising a base plate (1), characterized in that: A support frame (2) is fixed on the base plate (1). A swing frame (6) is connected to the support frame (2) by a bearing. An X and Y axis drive mechanism (7) is fixed on the swing frame (6) to realize the X and Y axis direction adjustment of the third cylinder (8) and the drilling mechanism (9). The third cylinder (8) is fixed on the X and Y axis drive mechanism (7). A positioning mechanism (3) is used to support and position arc-shaped workpieces (5) of different sizes, and to ensure that the center of the arc-shaped workpiece (5) coincides with the rotation center of the swing frame (6). The positioning mechanism (3) is mounted on the support frame (2). A clamping mechanism (4) for clamping and positioning the arc-shaped workpiece (5) is also fixed on the positioning mechanism (3). The positioning mechanism (3) includes a motor (301) fixed on the support frame (2), and the output end of the motor (301) is fixed with A rotating shaft (302) is connected to the support frame (2) by a bearing. An eccentric wheel (303) is fixed on the rotating shaft (302). The rotation axis of the eccentric wheel (303) coincides with the rotation axis of the swing frame (6). The eccentric wheel (303) is slidably connected to the top rod (304), and the top rod (304) is slidably connected to the arc frame (305). The arc frame (305) is fixed on the support frame (2). Meanwhile, a first spring (306) connects the arc-shaped frame (305) and the top rod (304). A bracket (307) is also fixed on the top rod (304), and a positioning roller (308) for positioning the arc-shaped workpiece (5) is connected to the bracket (307) by a bearing. The positioning roller (308) is distributed at at least three equal angles with respect to the center of the arc-shaped frame (305). At the same time, the center of the arc-shaped frame (305) is located on the rotation axis of the eccentric wheel (303). A connecting rod (309) is symmetrically fixed on the front and back sides, and the connecting rod (309) is fixed on the top rod (304) in the vertical direction. The connecting rod (309) is fixed to the support plate (310). At the same time, a guide rod (311) is fixed on the lower end face of the support plate (310). The guide rod (311) is slidably connected to the support plate (312). The support plate (312) is symmetrically fixed on the support frame (2) from left to right. A clamping mechanism (4) is fixed on the support plate (310). The drilling mechanism (9) is used to drill holes in the arc-shaped workpiece (5) and assist in the removal of waste materials. The drilling mechanism (9) is installed at the output end of the third cylinder (8).

2. The laser drilling equipment for processing arc-shaped metal sheets according to claim 1, characterized in that: The clamping mechanism (4) includes a vertical plate (401) fixed on a support plate (310), and a first cylinder (402) is fixed on the vertical plate (401). The output end of the first cylinder (402) is fixed with a mounting plate (403). Meanwhile, a movable plate (404) is connected to the mounting plate (403) by a bearing. A torsion spring is connected between the movable plate (404) and the mounting plate (403). Pressure rollers (405) are connected to the movable plate (404) by symmetrical bearings on the upper and lower parts.

3. The laser drilling equipment for processing arc-shaped metal sheets according to claim 1, characterized in that: The swing frame (6) is also symmetrically fixed with gears (601) in front and behind, and the gears (601) and racks (602) are meshed. The racks (602) are fixed at the output end of the second cylinder (603), while the second cylinder (603) is fixed on the base plate (1).

4. The laser drilling equipment for processing arc-shaped metal sheets according to claim 1, characterized in that: The punching mechanism (9) includes a round sleeve (901) fixed to the output end of the third cylinder (8), and the round sleeve (901) is fixed to one end of the elastic air bag (902), and the other end of the elastic air bag (902) is connected to the turntable (903) by a bearing. At the same time, the turntable (903) and the round sleeve (901) are slidably connected. A laser head (905) is fixed at the lower end of the turntable (903).

5. The laser drilling equipment for processing arc-shaped metal sheets according to claim 4, characterized in that: A convex shaft (904) is fixed on the turntable (903), and the convex shaft (904) is slidably connected to the spiral groove opened in the sleeve (901).

6. The laser drilling equipment for processing arc-shaped metal sheets according to claim 5, characterized in that: The turntable (903) is fixed to the upper end of the fixed rod (906), and an upper annular plate (907) is fixed on the upper part of the fixed rod (906). A lower annular plate (908) with its lower end face flush with the lower end face of the laser head (905) is fixed to the lower end of the fixed rod (906). At the same time, several sliding rods (909) are slidably connected at equal angles on the lower annular plate (908). A second spring (910) is fixed between the sliding rod (909) and the upper annular plate (907).

7. The laser drilling equipment for processing arc-shaped metal sheets according to claim 6, characterized in that: The lower end of the slide bar (909) is fixed with a mounting sleeve (911), and a rolling ball (912) is installed on the mounting sleeve (911).

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