Laser cutting device for aluminum veneer production

Abstract

The application discloses a laser cutting device for aluminum veneer production and relates to the technical field of metal cutting.The laser cutting device comprises a rack, a first motor fixedly connected to the rack, a screw rod rotationally connected to the rack, a screw rod fixedly connected to the output shaft of the first motor, a sliding rack slidingly connected to the rack, the sliding rack being threadedly connected with the screw rod, a laser generator fixedly connected to the sliding rack, a sleeve fixedly connected to the laser generator, air outlet pipes fixedly connected to the sleeve and symmetrically distributed along the laser generator, and air outlet channels and nitrogen gas outlet channels respectively formed in the side of the air outlet pipes away from the middle and the side of the air outlet pipes close to the middle.The application realizes differentiated configuration of cooling gas according to the heat load requirements of different regions in the laser cutting process of the aluminum veneer, significantly reduces the use amount of high-cost nitrogen gas, thereby reducing the overall production cost, plays the antioxidation advantage of the nitrogen gas, fully utilizes the cost-effectiveness of the air, realizes efficient utilization of resources, and guarantees the cooling effect.

Description

Technical Field

[0001] This invention relates to the technical field of metal cutting, and more particularly to a laser cutting device for aluminum single-panel production. Background Technology

[0002] During laser cutting of aluminum panels, aluminum's high thermal conductivity and strong reflectivity cause rapid heat accumulation and diffusion in the cutting area, leading to defects such as edge oxidation, slag buildup, and burrs, which affect cutting precision and surface quality. Currently, a single auxiliary gas (such as nitrogen or air) is commonly used for cooling and slag removal. While nitrogen effectively prevents oxidation and improves the surface finish, it is expensive and has limited cooling effect before and after the cutting path. Air, on the other hand, suffers from drawbacks such as easy oxidation of the cut surface and unstable quality, making it difficult to meet the demands of high-precision processing.

[0003] In existing technologies, auxiliary gas typically employs a single coaxial nitrogen injection method. Cooling and slag removal functions heavily rely on a continuous nitrogen supply, lacking differentiated treatment for the cooling needs of different areas. Pre-cooling and post-cooling before and after the cutting path still depend on nitrogen, failing to effectively utilize lower-cost gases (such as compressed air) for auxiliary cooling, resulting in significant nitrogen waste in non-critical areas. This "one-size-fits-all" gas supply mode limits the optimization space for gas usage and makes it difficult to meet the actual needs for cost reduction and efficiency improvement in large-scale production. Summary of the Invention

[0004] To overcome the drawback that pre-cooling and post-cooling before and after the cutting path still rely on nitrogen, resulting in nitrogen waste in non-critical areas, this invention provides a laser cutting device for aluminum single-panel production.

[0005] A laser cutting device for aluminum single-panel production includes a frame, a first motor fixedly connected to the frame, a screw rotatably connected to the frame, the screw being fixedly connected to the output shaft of the first motor, a sliding frame slidably connected to the frame, the sliding frame being threadedly connected to the screw, a laser generator fixedly connected to the sliding frame, a sleeve fixedly connected to the laser generator, and air outlet pipes symmetrically distributed along the laser generator fixedly connected inside the sleeve. Air outlet channels and nitrogen outlet channels are respectively opened on the side of the air outlet pipes furthest from the center and the side closest to the center. A gas guide frame is fixedly connected to the laser generator, and a nitrogen inlet pipe and an air inlet pipe are fixedly connected to the gas guide frame, which are respectively connected to the nitrogen outlet channel and the air outlet channel. A switching ring is rotatably connected to the side of the sleeve near the gas guide frame, and both the air outlet channel and the nitrogen outlet channel are connected to the gas guide frame through the switching ring.

[0006] Furthermore, it also includes a second motor, which is fixedly connected to the air guide frame. A first gear is fixedly connected to the switching ring, and a second gear is fixedly connected to the output shaft of the second motor. The second gear meshes with the first gear.

[0007] Furthermore, it also includes a position sensor, which is fixedly connected to the sliding frame and electrically connected to the second motor via a controller.

[0008] Furthermore, it also includes a rotating frame symmetrically distributed along the casing, the rotating frame being rotatably connected to the casing, the rotating frame being rotatably connected to the adjacent gas outlet pipe, the rotating frame being fixedly connected to a guide plate, and a connecting channel being opened between the air outlet channel and the adjacent nitrogen outlet channel, the guide plate being used to block the adjacent connecting channel.

[0009] Furthermore, it also includes a guide post, which is fixedly connected to the output shaft of the second motor. A fixed guide rail is fixedly connected to the sleeve, and a pusher frame for pushing the rotating frame to rotate is slidably connected to the fixed guide rail. The guide post is used to push the pusher frame to slide along the fixed guide rail.

[0010] Furthermore, it also includes a retaining ring, which is fixed to the bottom of the sleeve.

[0011] Furthermore, the blocking ring has several inverted U-shaped grooves symmetrically distributed along the blocking ring for constant pressure and ventilation. Beneficial effects

[0012] This invention employs a combined air and nitrogen gas supply method. Compressed air is used for pre-cooling and post-cooling before and after cutting. Lower-cost compressed air is used for pre-cooling and post-cooling in the areas before and after the cutting path, while nitrogen is used near the cutting point for critical cooling and anti-oxidation protection. This method achieves differentiated configuration of cooling gases based on the heat load requirements of different areas during aluminum single-panel laser cutting, significantly reducing the use of high-cost nitrogen, thereby lowering overall production costs. It leverages the anti-oxidation advantages of nitrogen while fully utilizing the cost-effectiveness of air, achieving efficient resource utilization while ensuring cooling performance.

[0013] This invention reduces the temperature of the aluminum panel by pre-cooling it with air before cutting, thereby reducing heat accumulation during laser treatment; and prevents residual heat from spreading by air cooling after cutting, effectively suppressing problems such as edge oxidation, slag buildup, and burrs, and improving the quality of the cut surface.

[0014] When the cutting equipment stops, the present invention triggers the controller through the position sensor to control the second motor to close the nitrogen channel, preventing nitrogen waste caused by unexpected shutdown, and guiding air into the original nitrogen channel to ensure that the air is closer to the cutting area for cooling, dynamically adjusting and optimizing the cooling effect, while ensuring residual heat control in the shutdown state to avoid local overheating deformation or safety hazards. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the laser generator, sleeve, and exhaust pipe components of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the air guide frame and switching ring of the present invention.

[0019] Figure 5 This is an exploded three-dimensional structural diagram of the sleeve, gas guide frame, and switching ring of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of the frame, first motor, sliding frame, and position sensor of the present invention.

[0021] Figure 7 This is a three-dimensional structural diagram of the air guide frame, the second motor, and the first gear of the present invention.

[0022] Figure 8 This is a three-dimensional structural diagram of the first gear, second gear, and rotating frame of the present invention.

[0023] Figure 9 This is a three-dimensional structural diagram of the second motor, guide column, and push frame components of the present invention.

[0024] Figure 10 This is a three-dimensional structural diagram of the guide column, fixed guide rail, and push frame components of the present invention.

[0025] Component names and serial numbers in the diagram: 101_Frame, 102_First Motor, 103_Screw, 104_Sliding Frame, 105_Laser Generator, 106_Sleeve, 107_Outlet Pipe, 1071_Air Outlet Channel, 1072_Nitrogen Outlet Channel, 108_Guide Frame, 1081_Nitrogen Inlet Pipe, 1082_Air Inlet Pipe, 109_Switching Ring, 201_Position Sensor, 202_Second Motor, 203_First Gear, 204_Second Gear, 301_Rotating Frame, 302_Guide Plate, 401_Guide Column, 402_Fixed Guide Rail, 403_Push Frame, 501_Blocking Ring. Detailed Implementation

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0027] Example 1: A laser cutting device for aluminum single-panel production, such as... Figures 1-5As shown, the device includes a frame 101. A first motor 102 is fixedly connected to the rear left side of the frame 101. A screw 103 is rotatably connected to the rear of the frame 101. The screw 103 is fixedly connected to the output shaft of the first motor 102. A sliding frame 104 is slidably connected to the frame 101 in a left-right direction. The sliding frame 104 is threadedly connected to the screw 103. A laser generator 105 is fixedly connected to the sliding frame 104. A sleeve 106 is fixedly connected to the laser generator 105. An exhaust pipe 107 is fixedly connected inside the sleeve 106, symmetrically distributed around the laser generator 105. The exhaust pipe 107 is located away from the center. An air outlet channel 1071 and a nitrogen outlet channel 1072 are respectively opened on the side and the side near the middle. A gas guide frame 108 is fixedly connected to the laser generator 105. A nitrogen inlet pipe 1081 and an air inlet pipe 1082 are fixedly connected to the left front side and the left rear side of the gas guide frame 108, respectively. The nitrogen inlet pipe 1081 and the air inlet pipe 1082 are respectively connected to the nitrogen outlet channel 1072 and the air outlet channel 1071. A switching ring 109 is rotatably connected to the upper side of the sleeve 106. The air outlet channel 1071 and the nitrogen outlet channel 1072 are both connected to the gas guide frame 108 through the switching ring 109.

[0028] During cutting, the air supply pipe and nitrogen output pipe are connected to the air outlet channel 1071 and the nitrogen outlet channel 1072, respectively. Then, the gas valve is opened and the laser generator 105 and the first motor 102 are turned on. The first motor 102 drives the screw 103 to rotate through the output shaft, thereby driving the sliding frame 104 to move to the right, and then driving the laser generator 105 and its components to move to the right synchronously. During the movement to the right, the air ejected from the air outlet channel 1071 on the right side pre-cools the aluminum panel. The laser generator 105 emits a laser beam from the middle for laser cutting. The nitrogen ejected from the nitrogen outlet channels 1072 on both sides cools and protects the laser-cut area. The air ejected from the air outlet channel 1071 on the left side then cools the aluminum panel. This effectively utilizes the lower-cost air for auxiliary cooling before and after cutting, saving nitrogen.

[0029] Example 2: Based on Example 1, such as Figure 6 and Figure 7 As shown, it also includes a position sensor 201, which is fixed to the top of the sliding frame 104. A second motor 202 is fixed to the front side of the air guide frame 108. The position sensor 201 is electrically connected to the second motor 202 through a controller. A first gear 203 is fixed to the outer periphery of the switching ring 109. A second gear 204 is fixed to the output shaft of the second motor 202 by welding. The second gear 204 meshes with the first gear 203.

[0030] like Figure 8 As shown, it also includes a rotating frame 301 symmetrically distributed along the left and right sides of the sleeve 106. The rotating frame 301 is rotatably connected to the sleeve 106 and rotatably connected to the adjacent air outlet pipe 107. A guide plate 302 is fixedly connected to the rear side of the rotating frame 301. A connecting channel is opened between the air outlet channel 1071 and the adjacent nitrogen outlet channel 1072. The guide plate 302 is used to block the adjacent connecting channel.

[0031] like Figure 9 and Figure 10 As shown, it also includes a guide post 401, which is fixedly connected to the output shaft of the second motor 202. The guide post 401 has a guide groove. A fixed guide rail 402 is fixedly connected to the front side of the sleeve 106. A push frame 403 is slidably connected to the fixed guide rail 402 in the vertical direction. The push frame 403 is slidably connected to the guide groove of the guide post 401 and is used to control the vertical movement of the push frame 403. The push frame 403 has movable grooves symmetrically distributed on the left and right sides of the push frame 403. The push frame 403 is movably connected to the rotating frame 301 through the movable grooves.

[0032] like Figure 9 As shown, it also includes a blocking ring 501, which is fixed to the bottom of the sleeve 106. The blocking ring 501 concentrates nitrogen gas at the cutting point to prevent it from escaping and improves the cooling effect at the cutting point. The blocking ring 501 has several inverted U-shaped grooves symmetrically distributed along the blocking ring 501 for gas permeability and constant pressure.

[0033] If an emergency occurs during the cutting process, the laser cutting will be stopped by shutting down. At this time, the position sensor 201 will detect that the position has not changed and send an electrical signal. The controller will receive the electrical signal and control the output shaft of the second motor 202 to rotate, thereby driving the first gear 203 to rotate, which in turn drives the second gear 204 to rotate, causing the switching ring 109 to rotate, thereby blocking the nitrogen gas outlet channel 1072, thus stopping the output of nitrogen and saving nitrogen. Simultaneously, the output shaft of the second motor 202 synchronously drives the guide column 401 to rotate, thereby causing the guide column 401 to rotate, which in turn causes the push frame 403 to slide upward along the fixed guide rail 402, and then causes the rotating frame 301 to rotate. The rotating frame 301 drives the guide plate 302 to swing into the adjacent air outlet channel 1071. In this way, the air in the air outlet channel 1071 enters the nitrogen outlet channel 1072, so that the air is closer to the cutting point for cooling, improving the cooling effect at the cutting point. When restarting and moving, the second motor 202 drives the switching ring 109 to reverse to open the nitrogen outlet channel 1072, and the second motor 202 drives the guide plate 302 to swing back to reset.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A laser cutting device for aluminum single-panel production, characterized in that, The device includes a frame (101), a first motor (102) fixedly connected to the frame (101), a screw (103) rotatably connected to the frame (101), the screw (103) being fixedly connected to the output shaft of the first motor (102), a sliding frame (104) slidably connected to the frame (101), the sliding frame (104) being threadedly connected to the screw (103), a laser generator (105) fixedly connected to the sliding frame (104), a sleeve (106) fixedly connected to the laser generator (105), and an exhaust pipe (107) symmetrically distributed along the laser generator (105) fixedly connected inside the sleeve (106), with the exhaust pipe (107) being away from the center. An air outlet channel (1071) and a nitrogen outlet channel (1072) are respectively opened on one side and the side near the middle. A guide frame (108) is fixed on the laser generator (105). A nitrogen inlet pipe (1081) and an air inlet pipe (1082) are fixed on the guide frame (108), which are connected to the nitrogen outlet channel (1072) and the air outlet channel (1071) respectively. A switching ring (109) is rotatably connected to the side of the sleeve (106) near the guide frame (108). The air outlet channel (1071) and the nitrogen outlet channel (1072) are both connected to the guide frame (108) through the switching ring (109). It also includes a position sensor (201), which is fixedly connected to the sliding frame (104), and the position sensor (201) is electrically connected to the second motor (202) through the controller; It also includes a rotating frame (301) symmetrically distributed along the sleeve (106), the rotating frame (301) is rotatably connected to the sleeve (106), the rotating frame (301) is rotatably connected to the adjacent air outlet pipe (107), the rotating frame (301) is fixedly connected to a guide plate (302), a connecting channel is opened between the air outlet channel (1071) and the adjacent nitrogen outlet channel (1072), and the guide plate (302) is used to block the adjacent connecting channel; It also includes a guide post (401), which is fixedly connected to the output shaft of the second motor (202). A fixed guide rail (402) is fixedly connected to the sleeve (106). A pusher (403) for pushing the rotating frame (301) to rotate is slidably connected to the fixed guide rail (402). The guide post (401) is used to push the pusher (403) to slide along the fixed guide rail (402).

2. The laser cutting device for aluminum single-panel production according to claim 1, characterized in that, It also includes a second motor (202), which is fixedly connected to the air guide frame (108). A first gear (203) is fixedly connected to the switching ring (109). A second gear (204) is fixedly connected to the output shaft of the second motor (202), and the second gear (204) meshes with the first gear (203).

3. The laser cutting device for aluminum single-panel production according to claim 2, characterized in that, It also includes a retaining ring (501), which is fixed to the bottom of the sleeve (106).

4. The laser cutting device for aluminum single-panel production according to claim 3, characterized in that, The blocking ring (501) has several inverted U-shaped grooves symmetrically distributed along the blocking ring (501) for air permeability and constant pressure.

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