A cable branch box plate laser cutting device

Abstract

The present application relates to the technical fields of laser cutting, in particular to a kind of cable branch box plate laser cutting device, including base, the base upper end slidingly disposed with sliding frame, the sliding frame upper end horizontal slidingly disposed with sliding plate, the sliding plate upper end center is equipped with laser cutting assembly, the laser cutting assembly circumferential side in the sliding plate is equipped with gas storage chamber, the sliding frame upper end side wall is fixedly connected with motor.The cable branch box plate laser cutting device provided in the present application, auxiliary gas can be discharged by the way of up and down, realize non-resistance clamping, prevent the board from shaking while, also can prevent the board from being extruded damage, and the horizontal deviation direction of board and the direction of rotation of reversing ball are opposite, so that the gas blown out from the lower side can timely correct the deviation of board, and when there is auxiliary gas in upper and lower sides, residue will be blown out from the cut, more clean residue is removed, when the heated auxiliary gas is sprayed to residue, it can prevent residue from cooling too early.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for cable branch box plates. Background Technology

[0002] Cable distribution box plates are generally made of aluminum-zinc coated steel plates. The surface coating is crucial for the equipment's corrosion resistance and appearance quality. Any form of mechanical scratch is strictly prohibited throughout the processing. Laser cutting has become the mainstream process for cutting such plates due to its narrow kerf, small heat-affected zone, and high precision. However, the thickness of such plates is usually between 0.8 and 2.0 mm, which is considered a thin plate. During laser cutting, the auxiliary gas is continuously sprayed onto the plate surface, and the superimposed cutting thermal stress can easily cause local high-frequency vibrations in the plate near the kerf. This vibration can lead to a wider kerf, a rough cross-section, and slag buildup at the bottom, severely restricting the cutting quality.

[0003] In existing technologies, the problems of vibration prevention and slag removal have long been unresolved in a coordinated manner. In terms of vibration prevention, conventional methods mostly use contact presser feet or rollers, which can partially suppress vibration, but inevitably leave scratches on the coating surface, failing to meet the requirements of a scratch-free process. In terms of slag removal, in actual cutting, high-pressure slag blowing will cause a large amount of high-temperature molten slag to splash around the upper surface of the plate, which adheres and cools to form hard residue, making cleaning extremely difficult. Moreover, the cleaning process itself is very likely to cause secondary scratches on the coating. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a laser cutting device for cable branch box plates.

[0005] This invention adopts the following technical solution: a laser cutting device for cable branch box plates, comprising a base, a slide frame slidably disposed on the upper end of the base, a sliding plate horizontally slidably disposed on the upper end of the slide frame, a laser cutting component disposed at the center of the upper end of the sliding plate, an air storage chamber disposed around the laser cutting component within the sliding plate, a motor fixedly connected to the upper side wall of the slide frame, a threaded rod fixedly connected to the output end of the motor, the threaded rod rotatably disposed within the slide frame, and a threaded connection between the bottom end of the sliding plate and the outer wall of the threaded rod, further comprising: An air outlet chamber is used to concentrate airflow to lift the plate upward. The air outlet chamber is located inside the base. A cutting groove is provided on the upper side of the air outlet chamber at the upper end of the base. A baffle is fixedly connected to the lower side of the cutting groove inside the base. A flow equalization plate is provided at the bottom of the air outlet chamber. An airflow stabilizing mechanism enables the airflow to automatically clamp the plate from top to bottom; the airflow stabilizing mechanism is located inside the base. And an anti-offset mechanism, which can prevent the plate from shifting horizontally, is provided inside the base.

[0006] As a further description of the above technical solution: the airflow stabilizing mechanism includes a guide channel, which is opened inside the base. One end of the guide channel is connected to the air outlet chamber. A reversing ball is provided at the end of the guide channel connected to the air outlet chamber. The reversing ball is movably embedded in the inner wall of the bottom of the air outlet chamber. The other end of the guide channel is connected to the outer side of the base. A lifting frame is provided at the other end of the guide channel. The lifting frame is inserted vertically into the base. A baffle is fixed to the outer wall of the lifting frame. A spring is fixed between the bottom end of the lifting frame and the base. An air vent is opened at the bottom end of the lifting frame. A connecting block is fixed to the upper end of the lifting frame. Sloping sliding surfaces are opened at both opposite ends of the connecting block.

[0007] As a further description of the above technical solution: the anti-deviation mechanism includes a spring ball, which is embedded in the upper end of the base. The bottom side of the spring ball abuts against a bracket, which is inserted vertically into the base. The bottom end of the bracket abuts against a contact plate, which is movably disposed within the base. A second spring is fixedly connected between the bottom end of the contact plate and the base. A connecting column is fixedly connected to the outer wall of the contact plate. A plate is fixedly connected to the end of the connecting column near the reversing ball. A first magnetic block is fixedly connected to the outer wall of the reversing ball. Two second magnetic blocks are provided on both sides of the lower end of the plate, and the two second magnetic blocks are symmetrically arranged about the connecting column.

[0008] As a further description of the above technical solution: the cutting grooves are provided at equal intervals along the length of the base.

[0009] As a further description of the above technical solution: the bottom end of the gas storage chamber is connected to the outside of the gas storage chamber, and the bottom end of the slide is provided with a slot, which is connected to the gas storage chamber.

[0010] As a further description of the above technical solution: both the flow equalization plate and the commutation ball are provided with air jets, and the air jets on the commutation ball are connected to the flow guide groove.

[0011] As a further description of the above technical solution: the second magnetic block is located below the magnetic block, and the magnetic properties of the upper end of the second magnetic block and the lower end of the magnetic block are opposite, while the magnetic properties of the lower end of the second magnetic block and the lower end of the magnetic block are the same.

[0012] As a further description of the above technical solution: both the upper end of the elastic ball and the lower end of the reversing ball are elastic.

[0013] This invention provides an improved laser cutting device for cable branch box plates, which has the following improvements and advantages compared with the prior art: Firstly, non-contact pneumatic clamping eliminates scratches and suppresses vibration. It is equipped with an air storage chamber and an air outlet chamber. Before cutting, auxiliary gas is sprayed out simultaneously from the top and bottom to form an opposing air curtain. The thin plate is suspended and clamped by gas pressure, completely replacing the presser foot and rollers, avoiding scratches on the coating. At the same time, the airflow buffer effectively suppresses local high-frequency vibrations caused by cutting thermal stress, ensuring that the cut is narrow and uniform, and significantly improving the cross-sectional quality. Secondly, self-sensing reverse correction ensures stable cutting trajectory. The elastic ball embedded in the upper part of the board senses horizontal deviation. When the board moves in the length or width direction, the elastic ball rolls and drives the bracket and connecting column to move, driving the reversing ball to rotate in the opposite direction, causing the airflow below to blow in the opposite direction, generating automatic correction force. No sensor is required, and the position is corrected in real time to prevent cutting deviation and dimensional deviation, ensuring cutting accuracy. Thirdly, hot air helps to remove residue, purifies the surface and avoids secondary damage. The gas storage chamber is close to the laser cutting component, absorbs waste heat to preheat the auxiliary gas, and hot air blows the cut seam from top to bottom at the same time. This not only quickly blows away the high-temperature molten slag, but also slows down its cooling to prevent it from adhering to hard slag. It is easy to clean and avoids secondary scratches on the coating caused by mechanical cleaning. At the same time, it effectively improves the bottom slag and enhances the smoothness of the cut surface. In summary, the auxiliary gas can achieve non-contact clamping by being sprayed from both the top and bottom, preventing the sheet metal from shaking and being crushed. Furthermore, the horizontal offset direction of the sheet metal is opposite to the rotation direction of the reversing ball, allowing the gas blown from the bottom to correct the offset of the sheet metal in a timely manner. When there is auxiliary gas on both the top and bottom, the residue will be blown out from the cut area, resulting in cleaner slag removal. When the heated auxiliary gas sprays the residue, it can prevent the residue from cooling too early and adhering to the surface of the sheet metal to form hard residue that is extremely difficult to clean. It can effectively utilize the heat released by the laser cutting component itself and can improve the slag removal effect. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 A perspective sectional view of the carriage provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of an airflow stabilizing mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the flow equalization plate provided in an embodiment of the present invention; Figure 5 for Figure 2 Enlarged view of point A in the middle; Figure 6 for Figure 2 Enlarged view of point B in the middle; Figure 7 for Figure 3Enlarged view of point C in the middle; Figure 8 for Figure 3 Enlarged view of point D in the middle.

[0015] In the diagram: 1. Base; 2. Carriage; 3. Sliding plate; 4. Laser cutting assembly; 5. Air storage chamber; 6. Motor; 7. Threaded rod; 8. Cutting groove; 9. Stop bar; 10. Air outlet; 11. Flow equalization plate; 12. Airflow stabilization mechanism; 121. Guide channel; 122. Reversing ball; 123. Lifting frame; 124. Baffle; 125. Spring 1; 126. Vent; 127. Connecting block; 128. Sloping sliding surface; 13. Anti-deviation mechanism; 131. Elastic ball; 132. Insert frame; 133. Contact plate; 134. Spring 2; 135. Connecting column; 136. Magnetic block 1; 137. Plate; 138. Magnetic block 2. Detailed Implementation

[0016] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Please see Figure 1 - Figure 8 This invention provides a technical solution: a laser cutting device for cable branch box plates, including a base 1, a slide 2 slidably disposed on the upper end of the base 1, a sliding plate 3 horizontally slidably disposed on the upper end of the slide 2, a laser cutting component 4 disposed at the center of the upper end of the sliding plate 3, an air storage chamber 5 disposed around the laser cutting component 4 within the sliding plate 3, a motor 6 fixedly connected to the upper side wall of the slide 2, a threaded rod 7 fixedly connected to the output end of the motor 6, the threaded rod 7 being rotatably disposed within the slide 2, and the bottom end of the sliding plate 3 being threadedly connected to the outer wall of the threaded rod 7, and further including: The air outlet chamber 10 is used to concentrate the airflow to lift the plate upward. The air outlet chamber 10 is opened in the base 1. A cutting groove 8 is opened on the upper side of the air outlet chamber 10 at the upper end of the base 1. A stop bar 9 is fixedly connected to the lower side of the cutting groove 8 in the base 1. A flow equalization plate 11 is provided at the bottom of the air outlet chamber 10. The airflow stabilizing mechanism 12 enables the airflow to automatically clamp the plate up and down, and the airflow stabilizing mechanism 12 is set inside the base 1; And an anti-offset mechanism 13, which can prevent the plate from shifting horizontally, is provided inside the base 1.

[0018] The cutting groove 8 is provided at equal intervals along the length of the base 1.

[0019] The bottom of the gas storage chamber 5 is connected to the outside of the gas storage chamber 5, and the bottom of the slide 2 is provided with a slot, which is connected to the gas storage chamber 5.

[0020] Specifically, non-contact pneumatic clamping eliminates scratches and suppresses vibration. It is equipped with an air storage chamber 5 and an air outlet chamber 10. Before cutting, auxiliary gas is sprayed synchronously from the top and bottom to form an opposing air curtain. The thin plate is suspended and clamped by gas pressure, completely replacing the presser foot and rollers, avoiding scratches on the coating. At the same time, the airflow buffer effectively suppresses local high-frequency vibrations caused by cutting thermal stress, ensuring that the cut is narrow and uniform, and significantly improving the cross-sectional quality.

[0021] Self-sensing reverse correction ensures stable cutting trajectory. The elastic ball 131 embedded in the upper part of the board senses horizontal deviation. When the board moves in the length or width direction, the elastic ball 131 rolls and drives the bracket 132 and the connecting column 135 to move, driving the reversing ball 122 to rotate in the opposite direction, so that the airflow below blows in the opposite direction, generating automatic correction force. No sensor is required, and the position is corrected in real time to prevent cutting deviation and dimensional deviation, ensuring cutting accuracy.

[0022] Hot air helps remove residue, purifies the surface and avoids secondary damage. The gas storage chamber 5 is adjacent to the laser cutting component 4, which absorbs residual heat to preheat the auxiliary gas. Hot air blows the cut seam from top to bottom at the same time, which not only quickly blows away the high-temperature molten slag, but also slows down its cooling to prevent it from adhering to hard slag. Cleaning is convenient and avoids secondary scratches on the coating caused by mechanical cleaning. At the same time, it effectively improves the slag on the bottom and improves the smoothness of the cut surface.

[0023] In another embodiment of the present invention, the airflow stabilizing mechanism 12 includes a guide groove 121, which is opened in the base 1. One end of the guide groove 121 is connected to the air outlet chamber 10. A reversing ball 122 is provided at the end of the guide groove 121 connected to the air outlet chamber 10. The reversing ball 122 is movably embedded in the bottom inner wall of the air outlet chamber 10. The other end of the guide groove 121 is connected to the outer side of the base 1. A lifting frame 123 is provided at the other end of the guide groove 121. The lifting frame 123 is inserted vertically into the base 1. A baffle 124 is fixedly connected to the outer wall of the lifting frame 123. A spring 125 is fixedly connected between the bottom end of the lifting frame 123 and the base 1. An air vent 126 is opened at the bottom end of the lifting frame 123. A connecting block 127 is fixedly connected to the upper end of the lifting frame 123. An inclined sliding surface 128 is opened at both opposite ends of the connecting block 127.

[0024] Both the flow equalization plate 11 and the reversing ball 122 are provided with jet nozzles, and the jet nozzles on the reversing ball 122 are connected to the flow guide groove 121.

[0025] Specifically, non-contact pneumatic clamping eliminates scratches and suppresses vibration. It is equipped with an air storage chamber 5 and an air outlet chamber 10. Before cutting, auxiliary gas is sprayed synchronously from the top and bottom to form an opposing air curtain. The thin plate is suspended and clamped by gas pressure, completely replacing the presser foot and rollers, avoiding scratches on the coating. At the same time, the airflow buffer effectively suppresses local high-frequency vibrations caused by cutting thermal stress, ensuring that the cut is narrow and uniform, and significantly improving the cross-sectional quality.

[0026] In another embodiment of the present invention, the anti-deviation mechanism 13 includes a spring ball 131, which is embedded in the upper end of the base 1. The bottom side of the spring ball 131 abuts against a bracket 132. The bracket 132 is inserted into the base 1 vertically. The bottom end of the bracket 132 abuts against a contact plate 133. The contact plate 133 is movably disposed in the base 1. A second spring 134 is fixed between the bottom end of the contact plate 133 and the base 1. A connecting column 135 is fixed to the outer wall of the contact plate 133. A plate 137 is fixed to one end of the connecting column 135 near the reversing ball 122. A first magnetic block 136 is fixed to the outer wall of the reversing ball 122. Two second magnetic blocks 138 are provided on both sides of the lower end of the plate 137. The two second magnetic blocks 138 are symmetrically arranged about the connecting column 135.

[0027] Magnetic block 2 138 is located below magnetic block 136. The magnetic properties of the upper end of magnetic block 2 138 and the lower end of magnetic block 136 are opposite, while the magnetic properties of the lower end of magnetic block 2 138 and the lower end of magnetic block 136 are the same.

[0028] Both the upper end of the elastic ball 131 and the lower end of the reversing ball 122 are elastic.

[0029] Specifically, the self-sensing reverse correction ensures a stable cutting trajectory. The elastic ball 131 embedded in the upper part of the board senses the horizontal deviation. When the board moves in the length or width direction, the elastic ball 131 rolls and drives the bracket 132 and the connecting column 135 to move, which drives the reversing ball 122 to rotate in the opposite direction, causing the airflow below to blow in the opposite direction, generating an automatic correction force. No sensors are needed to correct the position in real time, prevent cutting deviation and dimensional deviation, and ensure cutting accuracy.

[0030] Hot air helps remove residue, purifies the surface and avoids secondary damage. The gas storage chamber 5 is adjacent to the laser cutting component 4, which absorbs residual heat to preheat the auxiliary gas. Hot air blows the cut seam from top to bottom at the same time, which not only quickly blows away the high-temperature molten slag, but also slows down its cooling to prevent it from adhering to hard slag. Cleaning is convenient and avoids secondary scratches on the coating caused by mechanical cleaning. At the same time, it effectively improves the slag on the bottom and improves the smoothness of the cut surface.

[0031] Working principle: When using this device, first place the plate to be cut on the upper part of the base 1, then adjust the slide 2 to the corresponding position. During cutting, the position of the sliding plate 3 is adjusted by the motor 6 and the threaded rod 7. Before cutting with the laser cutting component 4, auxiliary gas is introduced into the gas storage chamber 5. The gas will be sprayed out from the bottom of the gas storage chamber 5, which can effectively prevent the oxidation reaction between oxygen and high-temperature metal. The auxiliary gas is sprayed out from the bottom of the gas storage chamber 5 on one hand and from the bottom of the slide 2 on the other. When the slide 2 moves to the corresponding connecting block 127, the bottom of the slide 2 presses against the inclined sliding surface 128, thereby the connecting block 127 is pushed towards When pressed down, the baffle 124 is no longer in close contact with the base 1, so the gas in the gas storage chamber 5 will enter the guide groove 121 through the bottom end of the slide 2. Then the gas flows through the reversing ball 122 and the flow equalization plate 11 into the gas outlet chamber 10. The gas on the lower side is concentrated and pushed upward, which can lift the plate upward. With the gas sprayed from the bottom end of the baffle 9, the plate can be clamped by the gas on the upper and lower sides. Without using the clamping component to squeeze the plate, the plate is fixed by the gas, which can prevent the plate from shaking when it is cut, and can also prevent the clamping component from rubbing against the plate during vibration, which could damage the coating on the plate surface or the plate itself. Furthermore, when the auxiliary gas is sprayed out, it can blow out the residue generated when the plate is cut. When there is auxiliary gas on both the top and bottom sides, the residue will be blown out from the cut area, making the slag removal cleaner. In addition, the laser cutting component 4 is prone to heat generation when working. The gas storage chamber 5 is set close to the laser cutting component 4, so that the auxiliary gas passing through the gas storage chamber 5 can also be heated. When the heated auxiliary gas sprays the residue, it can prevent the residue from cooling too early and adhering to the plate surface to form hard residue, which is extremely difficult to clean. It can effectively utilize the heat released by the laser cutting component 4 itself and make the slag removal effect better. After the upper and lower air gases firmly clamp the sheet metal, the sheet metal may still shift horizontally during cutting. When the sheet metal shifts horizontally, it will cause the elastic ball 131 to roll. When the elastic ball 131 rotates clockwise along the width of the base 1, the second magnetic block 138 tilts upward, making the bottom of the second magnetic block 138 closer to the bottom of the first magnetic block 136. At this time, the reversing ball 122 rotates counterclockwise. Conversely, when the elastic ball 131 rotates counterclockwise along the width of the base 1, the reversing ball 122 rotates clockwise. When the elastic ball 131 rotates clockwise along the length of the base 1, the second magnetic block 138 also rotates clockwise, causing the bottom of the first magnetic block 136 to be attracted by the second magnetic block 138. The reversing ball 122 rotates counterclockwise. This makes the horizontal shift direction of the sheet metal opposite to the rotation direction of the reversing ball 122, so that the gas blown from the lower side can correct the shift of the sheet metal in time.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for cable branch box plates, comprising a base (1), a slide (2) slidably disposed on the upper end of the base (1), a sliding plate (3) slidably disposed on the upper end of the slide (2), a laser cutting component (4) disposed at the center of the upper end of the sliding plate (3), an air storage chamber (5) disposed around the laser cutting component (4) within the sliding plate (3), a motor (6) fixedly connected to the upper side wall of the slide (2), a threaded rod (7) fixedly connected to the output end of the motor (6), the threaded rod (7) being rotatably disposed within the slide (2), and the bottom end of the sliding plate (3) being threadedly connected to the outer wall of the threaded rod (7), characterized in that, Also includes: An air outlet (10) is used to concentrate airflow to lift the plate upward. The air outlet (10) is opened in the base (1). A cutting groove (8) is opened on the upper side of the air outlet (1) at the upper end of the base (1). A baffle (9) is fixedly connected to the lower side of the cutting groove (8) in the base (1). A flow equalization plate (11) is provided at the bottom of the air outlet (10). The airflow stabilizing mechanism (12) enables the airflow to automatically clamp the plate up and down. The airflow stabilizing mechanism (12) is located inside the base (1). And an anti-offset mechanism (13) is provided to prevent the plate from shifting horizontally. The anti-offset mechanism (13) is located inside the base (1).

2. The laser cutting device for cable branch box plates according to claim 1, characterized in that: The airflow stabilizing mechanism (12) includes a guide groove (121), which is located inside the base (1). One end of the guide groove (121) is connected to the air outlet chamber (10). A reversing ball (122) is provided at the end of the guide groove (121) connected to the air outlet chamber (10). The reversing ball (122) is movably embedded in the inner wall of the bottom of the air outlet chamber (10). The other end of the guide groove (121) is connected to the outer side of the base (1). The other end is provided with a lifting frame (123), which is inserted into the base (1) from top to bottom. A baffle (124) is fixed to the outer wall of the lifting frame (123). A spring (125) is fixed between the bottom end of the lifting frame (123) and the base (1). A vent (126) is opened at the bottom end of the lifting frame (123). A connecting block (127) is fixed to the upper end of the lifting frame (123). An inclined sliding surface (128) is opened at both opposite ends of the connecting block (127).

3. The laser cutting device for cable branch box plates according to claim 2, characterized in that: The anti-deviation mechanism (13) includes a bouncy ball (131), which is embedded in the upper end of the base (1). The bottom side of the bouncy ball (131) abuts against a bracket (132). The bracket (132) is inserted vertically into the base (1). The bottom end of the bracket (132) abuts against a contact plate (133). The contact plate (133) is movably disposed within the base (1). The bottom end of the contact plate (133) is connected to the base (1). 1) A second spring (134) is fixedly connected to the outer wall of the contact plate (133), a connecting column (135) is fixedly connected to the outer wall of the contact plate (133), a plate (137) is fixedly connected to the end of the connecting column (135) near the reversing ball (122), a first magnetic block (136) is fixedly connected to the outer wall of the reversing ball (122), and a second magnetic block (138) is provided on both sides of the lower end of the plate (137), and the two second magnetic blocks (138) are symmetrically arranged about the connecting column (135).

4. The laser cutting device for cable branch box plates according to claim 1, characterized in that: The cutting groove (8) is provided at equal intervals along the length direction of the base (1).

5. The laser cutting device for cable branch box plates according to claim 1, characterized in that: The bottom end of the gas storage chamber (5) is connected to the outside of the gas storage chamber (5), and the bottom end of the slide (2) is provided with a slot, which is connected to the gas storage chamber (5).

6. The laser cutting device for cable branch box plates according to claim 2, characterized in that: Both the flow equalization plate (11) and the reversing ball (122) are provided with air jets, and the air jets on the reversing ball (122) are connected to the flow guide groove (121).

7. The laser cutting device for cable branch box plates according to claim 3, characterized in that: The second magnetic block (138) is located below the first magnetic block (136). The magnetic properties of the upper end of the second magnetic block (138) and the lower end of the first magnetic block (136) are opposite, while the lower end of the second magnetic block (138) has the same magnetic properties as the lower end of the first magnetic block (136).

8. The laser cutting device for cable branch box plates according to claim 3, characterized in that: The upper end of the elastic ball (131) and the lower end of the reversing ball (122) are both elastic.

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