Laser cutting device for aluminum veneer production

Abstract

The invention discloses a laser cutting device for aluminum veneer production, which relates to the technical field of metal cutting and comprises a rack, a first motor is fixedly connected to the rack, a screw rod is rotatably connected to the rack, the screw rod is fixedly connected with an output shaft of the first motor, a sliding frame is slidably connected to the rack, the sliding frame is in threaded connection with the screw rod, and a laser generator is fixedly connected to the sliding frame. A sleeve is fixedly connected to the laser generator, gas outlet pipes symmetrically distributed along the laser generator are fixedly connected into the sleeve, and an air outlet channel and a nitrogen outlet channel are formed in the sides, away from the middle, of the gas outlet pipes and the sides, close to the middle, of the gas outlet pipes respectively. According to the thermal load requirements of different areas in the aluminum veneer laser cutting process, differential configuration of cooling gas is achieved, the use amount of high-cost nitrogen is remarkably reduced, and therefore the overall production cost is reduced, the anti-oxidation advantage of the nitrogen is exerted, the cost benefit of air is fully utilized, efficient utilization of resources is achieved, and the economic benefit is increased. Meanwhile, the cooling effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of metal cutting, and in particular to a laser cutting device for producing aluminum veneer panels. Background Art

[0002] During the laser cutting of aluminum veneer, due to aluminum's high thermal conductivity and strong reflectivity, heat can easily accumulate and diffuse rapidly in the cutting area, leading to defects such as oxidation, dross, and burrs, compromising 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 can effectively prevent oxidation and improve the finish of the cut surface, it is expensive and has limited cooling effect in the areas before and after the cutting path. Using air, on the other hand, has drawbacks such as easy oxidation of the cut surface and unstable quality, making it difficult to meet the requirements of high-precision machining.

[0003] Existing technologies typically use a single coaxial nitrogen injection system for auxiliary gas. Cooling and slag removal rely heavily on a continuous nitrogen supply, lacking differentiated cooling solutions for different areas. Pre-cooling and post-cooling before and after the cutting path still rely on nitrogen, failing to effectively utilize lower-cost gases (such as compressed air) for auxiliary cooling. This leads to significant nitrogen waste in non-critical areas. This one-size-fits-all gas supply model limits the optimization potential for gas usage and makes it difficult to meet the practical needs of large-scale production for cost reduction and efficiency improvement. Summary of the Invention

[0004] In order to overcome the disadvantage that the pre-cooling and post-cooling before and after the cutting path still rely on nitrogen, resulting in the waste of nitrogen in non-critical areas, the present invention provides a laser cutting device for aluminum veneer production.

[0005] A laser cutting device for aluminum veneer production includes a frame, the frame is fixedly connected to a first motor, the frame is rotatably connected to a screw, the screw is fixed to the output shaft of the first motor, a sliding frame is slidably connected to the frame, the sliding frame is threadedly connected to the screw, a laser generator is fixed to the sliding frame, a sleeve is fixed to the laser generator, air outlet pipes symmetrically distributed along the laser generator are fixed in the sleeve, an air outlet channel and a nitrogen outlet channel are respectively opened on the side away from the middle and the side close to the middle of the air outlet pipe, an air guide frame is fixed to the laser generator, a nitrogen inlet pipe and an air inlet pipe are fixed to the air guide frame, which are connected to the nitrogen outlet channel and the air outlet channel respectively, a switching ring is rotatably connected to the side of the sleeve close to the air guide frame, and the air outlet channel and the nitrogen outlet channel are both connected to the air guide frame through the switching ring.

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

[0007] Furthermore, a position sensor is included. The position sensor is fixed to the sliding frame and is electrically connected to the second motor through the controller.

[0008] Furthermore, it also includes a rotating frame symmetrically distributed along the sleeve, the rotating frame is rotatably connected to the sleeve, the rotating frame is rotatably connected to the adjacent air outlet pipe, the rotating frame is fixed with a guide plate, a connecting channel is opened between the air outlet channel and the adjacent nitrogen outlet channel, and the guide plate is used to block the adjacent connecting channels.

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

[0010] Furthermore, a blocking ring is included, which is fixed to the bottom of the sleeve.

[0011] Furthermore, the blocking ring is provided with a plurality of inverted U-shaped grooves symmetrically distributed along the blocking ring for ventilation and constant pressure. Beneficial effects

[0012] This method uses a coordinated supply of air and nitrogen, using compressed air 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 for critical cooling and anti-oxidation protection near the cutting point. This method achieves differentiated cooling gas configuration based on the heat load requirements of different areas during the aluminum veneer laser cutting process, significantly reducing the use of high-cost nitrogen and thus 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 effective cooling.

[0013] The present invention lowers the temperature of the aluminum veneer by air pre-cooling before cutting, thereby reducing heat accumulation during laser action; air cooling after cutting prevents residual heat from diffusing, effectively suppresses edge oxidation, slag and burr problems, and improves 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, thereby preventing nitrogen waste caused by accidental 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, and at the same time ensuring the control of residual heat in the shutdown state to avoid local overheating, deformation or safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the laser generator, sleeve, air outlet pipe and other components of the present invention.

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

[0019] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the sleeve, gas guide frame and switching ring of the present invention.

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

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the air guide frame, the second motor, the first gear and other components of the present invention.

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the first gear, the second gear, the rotating frame and other components of the present invention.

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

[0024] Figure 10 It is a schematic diagram of the three-dimensional structure of the guide column, fixed guide rail and pushing frame components of the present invention.

[0025] Names and serial numbers of parts in the figure: 101_frame, 102_first motor, 103_screw, 104_sliding frame, 105_laser generator, 106_sleeve, 107_air outlet pipe, 1071_air outlet channel, 1072_nitrogen outlet channel, 108_air 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_pushing frame, 501_blocking ring. DETAILED DESCRIPTION

[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 veneer production, such as Figure 1-Figure 5As shown, it includes a frame 101, a first motor 102 is fixedly connected to the left rear portion of the frame 101, a screw 103 is rotatably connected to the rear portion 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 along the left and right directions, 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 air outlet pipe 107 symmetrically distributed along the left and right sides of the laser generator 105 is fixedly connected to the sleeve 106, and the air outlet pipe 107 is away from the middle one An air outlet channel 1071 and a nitrogen outlet channel 1072 are respectively opened on the side and the side near the middle. An air guide frame 108 is fixedly connected to the laser generator 105. A nitrogen inlet pipe 1081 and an air inlet pipe 1082 are respectively fixedly connected to the left front side and the left rear side of the air guide frame 108. The nitrogen inlet pipe 1081 and the air inlet pipe 1082 are respectively communicated with 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 communicated with the air guide frame 108 through the switching ring 109.

[0028] During cutting, the air delivery pipe and the nitrogen output pipe are connected to the air outlet channel 1071 and the nitrogen outlet channel 1072 respectively, and then the air 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 the components thereon to move to the right synchronously. During the rightward movement, the air ejected from the air outlet channel 1071 on the right first pre-cools the aluminum single plate, and the laser generator 105 emits a laser beam in the middle for laser cutting. The nitrogen ejected from the nitrogen outlet channels 1072 on the left and right sides cools and protects the laser cutting area, and the air ejected from the air outlet channel 1071 on the left side performs post-cooling on the aluminum single plate, effectively utilizing lower-cost air for auxiliary cooling before and after cutting, saving nitrogen.

[0029] Example 2: Based on Example 1, 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, and 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, and 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, and the second gear 204 is engaged with the first gear 203.

[0030] like Figure 8 As shown, 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. A guide plate 302 is fixed 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 channels.

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

[0032] like Figure 9 As shown, a blocking ring 501 is also included. The blocking ring 501 is fixed to the bottom of the sleeve 106. The blocking ring 501 collects nitrogen at the cutting point to prevent it from escaping, thereby improving the cooling effect at the cutting point. The blocking ring 501 has a plurality of inverted U-shaped grooves symmetrically distributed along the blocking ring 501 for ventilation and constant pressure.

[0033] During the cutting process, if an emergency occurs, the laser cutting is shut down and suspended. At this time, the position sensor 201 senses that the position has not changed, and sends an electrical signal. The controller receives the electrical signal and controls the output shaft of the second motor 202 to rotate, thereby driving the first gear 203 to rotate, and then driving the second gear 204 to rotate, so that the switching ring 109 rotates to block the nitrogen outlet channel 1072, thereby stopping the output of nitrogen and saving nitrogen. At the same time, the output shaft of the second motor 202 synchronously drives the guide column 401 to rotate, thereby driving the guide column 401 to rotate, and then driving the pushing frame 403 to slide upward along the fixed guide rail 402, and then driving 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 area for cooling, thereby improving the cooling effect of the cutting area. When restarting the machine, 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 and reset.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A laser cutting device for aluminum veneer production, characterized in that: The invention comprises a frame (101), the frame (101) is fixedly connected to a first motor (102), the frame (101) is rotatably connected to a screw (103), 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), 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 air outlet pipe (107) symmetrically distributed along the laser generator (105) is fixedly connected in the sleeve (106), and the air outlet pipe (107) is away from the middle An air outlet channel (1071) and a nitrogen outlet channel (1072) are respectively provided on one side and the side close to the middle. The laser generator (105) is fixedly connected to an air guide frame (108). A nitrogen inlet pipe (1081) and an air inlet pipe (1082) are fixedly connected to the air guide frame (108), which are respectively communicated with the nitrogen outlet channel (1072) and the air outlet channel (1071). A switching ring (109) is rotatably connected to the side of the sleeve (106) close to the air guide frame (108). Both the air outlet channel (1071) and the nitrogen outlet channel (1072) are communicated with the air guide frame (108) through the switching ring (109).

2. A laser cutting device for aluminum veneer production according to claim 1, characterized in that: The second motor (202) is fixedly connected to the air guide frame (108), a first gear (203) is fixedly connected to the switching ring (109), an output shaft of the second motor (202) is fixedly connected to a second gear (204), and the second gear (204) is meshed with the first gear (203).

3. The laser cutting device for aluminum veneer production according to claim 2, characterized in that: It also includes a position sensor (201), which is fixed to the sliding frame (104) and electrically connected to the second motor (202) via a controller.

4. A laser cutting device for aluminum veneer production according to claim 3, characterized in that: The apparatus further comprises a rotating frame (301) symmetrically distributed along the sleeve (106), the rotating frame (301) being rotatably connected to the sleeve (106), the rotating frame (301) being rotatably connected to the adjacent air outlet pipe (107), the rotating frame (301) being fixedly connected to a guide plate (302), a connecting channel being provided between the air outlet channel (1071) and the adjacent nitrogen outlet channel (1072), and the guide plate (302) being used to block the adjacent connecting channels.

5. The laser cutting device for aluminum veneer production according to claim 4, characterized in that: The device further comprises a guide column (401), the guide column (401) being fixedly connected to the output shaft of the second motor (202), the sleeve (106) being fixedly connected to a fixed guide rail (402), the fixed guide rail (402) being slidably connected to a push frame (403) for pushing the rotating frame (301) to rotate, and the guide column (401) being used to push the push frame (403) to slide along the fixed guide rail (402).

6. The laser cutting device for aluminum veneer production according to claim 5, characterized in that: It also includes a blocking ring (501), which is fixed to the bottom of the sleeve (106).

7. The laser cutting device for aluminum veneer production according to claim 6, characterized in that: The blocking ring (501) is provided with a plurality of inverted U-shaped grooves symmetrically distributed along the blocking ring (501) for ventilation and constant pressure.

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