Aluminum plate edge cutting device with high accuracy

Abstract

The application discloses an aluminum plate edge cutting device with high accuracy, and particularly relates to the technical field of aluminum plate edge cutting, and comprises a cutting workbench, a feeding slide frame and a cutter holder frame, the feeding slide frame is used for driving the cutter holder frame to feed in the horizontal and vertical directions on the top of the cutting workbench, a cutting cutter head is internally installed in the cutter holder frame, a circulating air blowing box is externally installed on the cutter holder frame, and the circulating air blowing box is used for blowing away the cuttings around the cutting cutter head, a material pressing assembly is arranged between the feeding slide frame and the cutter holder frame, the material pressing assembly is equidistantly arranged along a cutting edge line, is used for pressing and holding the aluminum plate, and implements resistance and constraint on the cutting edge, so as to inhibit the interference of deformation on the cutting cutter head; the material pressing column and the rubber cloth film piece array are arranged on the aluminum plate body side of the cutting edge, a material pressing line array parallel to the edge is formed, the aluminum plate on the cutting line is constrained by multiple equidistantly distributed pressing points, and the aluminum plate segment between adjacent pressing points is constrained on both sides and cannot be locally lifted up.

Description

Technical Field

[0001] This invention relates to the field of aluminum plate trimming technology, and more specifically to a high-precision aluminum plate trimming device. Background Technology

[0002] Intelligent manufacturing equipment for aluminum plate edge trimming is a core intelligent equipment in the field of aluminum finishing. It can automatically and accurately remove the process allowance and defects at the edges of aluminum plates, and finally output finished aluminum plates that meet the requirements of width, straightness and cross-sectional quality. It is a key process equipment in the aluminum deep processing production line to ensure the dimensional accuracy and surface quality of the finished product. During the cutting operation, the processing worktable is positioned and fixed to the aluminum plate to be cut, and the air outlet component on the side of the cutter head simultaneously cleans the aluminum dust on the outer periphery of the cutter head. Then the upper cutter head drives the cutting cutter head to feed horizontally along the surface of the aluminum plate. The cutter head and the lower cutter head cooperate to complete the shearing and separation of the aluminum plate. The constraint state of the aluminum plate during the cutting process directly determines the quality of the cut surface, the dimensional accuracy of the finished product and the operational safety of the equipment. The existing aluminum plate trimming device's pressure plate structure is usually only located on one side of the finished aluminum plate body at the cutting edge. That is, it only applies pressure to the aluminum plate body that will become the finished product. During operation, the upper blade holder moves downward, and the pressure plate presses and fixes the aluminum plate body to the surface of the lower blade holder. The blade head feeds along the cutting line to complete the shearing. The cut-off scrap aluminum strips rely on their own weight or the residual internal stress of the plate to warp and fall off freely. However, the aluminum plate will accumulate residual internal stress during the rolling and heat treatment processes. The original stress balance is broken during the cutting process, and the cut-off narrow scrap strips are very prone to irregular deformation. Since the scrap aluminum strips are in an unrestrained free state at the moment of cutting and separation, the combined effect of the release of internal residual stress and shearing force will cause unpredictable warping, bouncing or curling deformation. This deformation directly acts on the area around the cutting edge. The warped scrap aluminum strips will continuously hit the blade holder or blade head body, interfering with the continuous and stable trimming operation of the aluminum plate by the blade head, thus affecting the cutting accuracy and the stability of equipment operation. Summary of the Invention

[0003] The purpose of this invention is to provide a high-precision aluminum plate trimming device to address the aforementioned shortcomings in the technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-precision aluminum plate trimming device, comprising a cutting worktable, a feed slide, and a blade holder, wherein the feed slide is used to drive the blade holder to feed horizontally and vertically at the top of the cutting worktable, a cutting blade disc is installed inside the blade holder, and a circulating air box is installed outside the blade holder, wherein the circulating air box is used to blow away debris around the cutting blade disc, and a pressing assembly is provided between the feed slide and the blade holder, wherein the pressing assembly is equidistantly arranged along the cutting edge line to press the aluminum plate and to provide resistance and constraint to the cutting edge, so as to suppress the interference of deformation on the cutting blade disc; The pressing assembly includes a pressing arm seat movably connected inside the feed carriage and a blocking slide seat installed on the side of the cutter holder near the cutting disc. The bottom of the blocking slide seat is equipped with a pressing plate, which is L-shaped and has a curved surface at the bottom. The bottom of the pressing arm seat is equipped with several pressing columns and a rubber-insulated diaphragm. The pressing columns and the rubber-insulated diaphragm are used to maintain a multi-point adaptive pressing state between the pressing arm seat and the aluminum plate during the pressing process. A power assembly is provided between the cutter holder and the material stop slide, and the power assembly is used to drive the cutting blade to rotate, while driving the material stop slide to reciprocate along the bottom of the cutter holder; Each of the pressure column and pressure arm seats is provided with a pre-pressure adjustment component, which is used to convert the rigid displacement of the pressure column and the rubber-insulated diaphragm following the pressure arm seat into an elastic pre-pressure applied to the aluminum plate.

[0005] Preferably, the power assembly includes a mounting frame fixedly connected to the bottom of the cutter holder and communicating with its interior, and a worm gear shaft installed between the cutting blade disc and the cutter holder, with the worm gear shaft part located inside the mounting frame. A worm gear meshing with the worm gear shaft is movably connected inside the mounting frame, and a servo motor is fixedly connected to the outside of the mounting frame, and the servo motor is used to drive the worm gear to rotate. A conversion component is provided between the worm and the stop slide, and the conversion component is used to convert the worm's circular motion into the reciprocating motion of the stop slide along the bottom of the tool holder.

[0006] Preferably, the conversion assembly includes a cavity shell fixedly connected to the mounting frame near the tool holder and a transmission spindle fixedly connected to one end of the worm gear. One end of the transmission spindle extends into the cavity shell and is fixedly connected to a rotary cam. A guide seat is movably slidably connected inside the cavity shell and is movably sleeved on the outside of the rotary cam. There is a floating gap between the guide seat and the rotary cam. One end of the guide seat is fixedly connected to a transmission push rod, and one end of the transmission push rod passes through the cavity shell and is fixedly connected to the top of the stop slide. A guide cone pin is installed inside the guide seat. A corrugated groove is opened on the outer periphery of the rotary cam. One end of the guide cone pin is conical, and the conical end extends into the corrugated groove and slides along the corrugated contour of the corrugated groove. A trimming assembly is provided between the cutting disc and the worm gear shaft, and the trimming assembly is used to deburr the cutting edge produced by the cutting disc after cutting the aluminum plate.

[0007] Preferably, a pressing component is provided between the baffle slide and the pressing plate, and the pressing component is used to ensure that the pressing plate and the aluminum plate maintain an elastic and adaptive contact state during the downward movement of the pressing plate. The pressure assembly includes two guide slides symmetrically fixedly connected to the inner side of the top of the pressure bending plate and two guide slides symmetrically opened at the bottom of the material stop slide. Each guide slide is fixedly connected to a limit stop ring inside. Each guide pin has a pressure plate, a limiting ring, and a guide groove sequentially passing through its top, with the portion of the guide pin inside the limiting ring slidingly engaging with the limiting ring. A buffer spring is also connected between each guide pin and its corresponding limiting ring.

[0008] Preferably, the trimming assembly includes a drive shaft disk installed between the cutting blade disk and the worm gear shaft, and a cutting pin disk movably connected to the side of the blade holder near the cutting blade disk, and the bottom of the cutting pin disk corresponds to the bottom of the cutting blade disk; A gear ring is fixedly sleeved on the outside of the drive shaft disc, and a drive gear that meshes with the gear ring is movably connected inside the tool holder. A driven gear is connected between the cutting disc and the tool holder, and the driven gear meshes with the drive gear. An airflow assembly is provided between the transmission push rod and the tool holder to blow air onto the cutting disc and the vicinity of the drive gear.

[0009] Preferably, the airflow assembly includes an air cylinder cavity fixedly connected to the side of the tool holder near the drive gear and a push rod body fixedly connected to one end of the transmission push rod. One end of the push rod body extends into the interior of the air cylinder cavity and is fixedly connected to a piston disc. One end of the piston disc is fixedly connected to a sealing end, and both the sealing end and the outer periphery of the piston disc are in contact with the interior of the air cylinder cavity. An air nozzle communicating with the interior is fixedly connected to the exterior of the air cylinder cavity.

[0010] Preferably, the pre-compression adjustment assembly includes an installation slide cavity opened at the bottom of the pressure arm seat for guiding the movement of the pressure column and a spring damping seat fixedly connected inside the pressure column, and a pre-compression spring is connected between the spring damping seat and the pressure column. The external part of the pressure column is fixedly fitted with a locking sleeve, and the internal part of the locking sleeve is fixedly connected with an inner ring frame. Several flexible support blocks are installed at the bottom of the inner ring frame, and the flexible support blocks are used to keep the rubber cloth diaphragm connected to the pressure column.

[0011] Preferably, the bottom end of the locking sleeve is also fixedly connected to an external threaded seat, and an adjusting screw is screwed to the outside of the external threaded seat. The bottom end of the adjusting screw has a conical cavity for inserting a rubber-insulated diaphragm. The interior of the conical cavity has a conical structure, and its conical surface forms an oblique fit with the outer wall of the flexible support block.

[0012] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. This invention uses a pressure column and a rubber-insulated diaphragm array arranged on the aluminum plate body side of the cutting edge to form a pressure line array parallel to the cutting edge. The aluminum plate is constrained by multiple equally spaced pressure points on the cutting line. The aluminum plate segments between adjacent pressure points are constrained by both sides and cannot locally warp. A normal pressure force is applied to the aluminum plate body to be cut. A stop slide and a pressing bend plate are arranged on the scrap side of the cutting edge. The L-shaped vertical wall of the pressing bend plate is always between the cutter holder and the cut scrap aluminum plate strip. A moving physical barrier is formed, and the warping, bouncing or curling tendency of the scrap aluminum strips at the moment of cutting and separation is immediately blocked by the L-shaped vertical wall, preventing them from contacting the cutting disc. At the same time, a normal pressing force is applied to the already cut scrap aluminum strips. The two form symmetrical and complementary vertical constraints on both sides of the cutting edge. The aluminum plate is effectively pressed on both sides of the cutting edge, avoiding material deflection or vibration caused by unilateral constraint, ensuring stable cutting of the aluminum plate by the cutting disc, and greatly improving the continuity and safety of the cutting process. 2. This invention, through the coordinated arrangement of a spring damping seat, a pre-compression spring, a pressure column, and a rubber-insulated diaphragm, ensures that in the initial stage when the cutter head descends and begins horizontal feeding, the pre-compression spring is compressed first, and the pressure force is gradually built up from zero. When the cutter head contacts the aluminum plate and begins cutting, the pressure force has reached the set value and presses the aluminum plate firmly. The constraint force applied by the rubber-insulated diaphragm to the aluminum plate is smooth and continuous, rather than an instantaneous impact. The gradual pressure buildup provides a smooth transition for the constraint of the aluminum plate. The aluminum plate will not produce initial indentations due to sudden pressing impact at the beginning of the cutting. The cross-sectional quality at the starting point of the cutting is consistent with the entire section, further improving the edge cutting quality of the aluminum plate. 3. This invention utilizes the movement of the flexible support block to continuously reduce the external clamping force between the rubber-insulated diaphragm and the locking cylinder. This causes the rubber-insulated diaphragm to lose its locking function within the locking sleeve and between it and the pressure column. This allows for downward adjustment of the rubber-insulated diaphragm along the inside of the locking sleeve, enabling adaptive adjustment of the distance between the rubber-insulated diaphragm and the aluminum plate. Even when the rubber-insulated diaphragm is no longer locked to the locking sleeve, it can still rotate within the locking sleeve to adjust the contact angle between the rubber-insulated diaphragm and the aluminum plate. Synchronous adjustment is used to reset the pre-compression deformation working point of the rubber-insulated diaphragm, so that it always works within the optimal elastic range. This ensures sufficient frictional clamping force, improves the dynamic anti-overturning ability of the rubber-insulated diaphragm during horizontal feeding, and keeps the contact state between the bottom of the rubber-insulated diaphragm and the aluminum plate stable. This ensures that the vertical pressure and friction are evenly distributed across the entire surface of the rubber-insulated diaphragm, eliminating uneven wear of the rubber-insulated diaphragm or local indentations on the aluminum plate caused by angle mismatch. It also prevents excessive compression from causing plastic deformation or excessive wear of the rubber-insulated diaphragm, further improving the stability of the aluminum plate edge cutting. 4. In this invention, the guide seat moves horizontally back and forth along the outside of the rotary cam. As the guide seat moves back and forth, it drives the transmission push rod to move back and forth along the inside of the cavity shell. Then, the pressing plate and the stop slide move back and forth between the aluminum plate and the scrap aluminum strip under the back and forth movement of the transmission push rod. This makes the curved surface of the pressing plate first contact the upper surface of the scrap aluminum strip. The curvature of the curved surface makes the contact gradually expand from point contact to line contact. The scrap aluminum strip is flexibly pressed down and abuts against the top of the cutting table. The low friction sliding characteristics of the curved surface make the scrap aluminum strip not be dragged and deformed due to excessive frictional resistance even if it is continuously pressed down by the pressing plate during horizontal cutting. This effectively suppresses warping, reduces the cutting interference of the scrap aluminum strip on the cutting blade, and makes the aluminum plate obtain more accurate edge cutting. 5. In this invention, the pressure plate moves upward under pressure, which drives the internal guide slide column to move upward. During this upward movement, the guide slide column is guided by the limiting ring and the guide groove, so that the pressure plate moves along the bottom of the material stop slide along a preset trajectory. Then, under the movement of the guide slide column, the buffer spring is elastically compressed between the limiting ring and the guide slide column. At this time, the elasticity of the buffer spring itself gives the guide slide column a downward thrust, which applies a normal pressure force to the cut and separated scrap aluminum strip. The curvature change of the scrap aluminum strip along the cutting feed direction generates an outward guiding force, so that the material at the cutting edge does not produce vertical vibration at the moment of cutting. The force of the cutting disc is more concentrated on the cutting surface, improving the cutting quality of the aluminum plate. 6. The present invention drives the transmission shaft to rotate along the inside of the cutter holder by rotating the cutting blade disc and the worm gear shaft. This facilitates the synchronous rotation of the cutting pin disc, allowing it to feed horizontally in sync with the cutting blade disc. After the cutting blade disc finishes cutting the aluminum plate, the cut edge of the aluminum plate just enters the working area of ​​the cutting pin disc that follows. The sharpening blade immediately sharpens and removes burrs from the cut surface, improving the efficiency of aluminum plate cutting. 7. This invention drives the gear ring to rotate synchronously with the rotation of the transmission shaft disc, so that the gear ring maintains meshing transmission with the driving gear during the rotation process. This drives the driving gear to rotate along the inside of the tool holder. At this time, the gear ring outputs high speed and low torque. After being decelerated by the driving gear, the driving gear maintains meshing transmission with the driven gear during the rotation process, so that the driven gear obtains a reduced speed and a greater torque, driving the cutting die disc to grind the cross-section at a suitable cutting speed, rather than overheating and sticking caused by high-speed grinding. The grinding process is stable and controllable, further improving the edge cutting quality of aluminum plates. 8. This invention uses the reciprocating movement of the transmission push rod to drive the push rod body to reciprocate along the inside of the air cylinder cavity. During the movement, the push rod body drives the piston disc and sealing end to move along the inside of the air cylinder cavity. Then, the gas outside the air cylinder cavity is drawn in through the air nozzle. At this time, the gas is compressed inside the air cylinder cavity. As the push rod body pushes, it drives the sealing end and piston disc to spray the compressed gas inside the air cylinder cavity into the air nozzle in a directional manner. This causes the reciprocating movement of the push rod body to generate airflow around the driving gear and driven gear, so that the airflow forms a micro air cushion between their tooth surfaces, blowing away the aluminum dust attached to the tooth surfaces. This ensures that the cutting and grinding process of the cutting die disc is stable and controllable, and improves the cutting quality of aluminum plates. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the pressing column of the present invention; Figure 3 This is a schematic diagram of the worm gear shaft of the present invention; Figure 4 This is an exploded view of the preload adjustment component of the present invention; Figure 5 This is a schematic diagram of the corrugated groove structure of the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram of point A in the diagram; Figure 7 This is a schematic diagram of the push rod body of the present invention; Figure 8 This is a schematic diagram of the driven gear of the present invention.

[0015] Explanation of reference numerals in the attached figures: 1. Cutting worktable; 11. Feed carriage; 12. Tool holder; 13. Cutting blade disc; 14. Circulating air box; 2. Material clamping assembly; 21. Material clamping arm seat; 22. Material clamping column; 23. Rubber-insulated diaphragm; 24. Material stop slide; 25. Pressing bending plate; 3. Power assembly; 31. Mounting frame; 32. Servo motor; 33. Worm gear shaft; 34. Worm; 35. Transmission spindle; 36. Cavity shell; 37. Rotary cam; 38. Corrugated groove; 39. Guide seat; 301. Guide cone pin; 302. Transmission push rod; 4. Pressure assembly; 41. Guide slide groove; 42. Guide slide column; 43. Buffer spring; 44. Limiting ring; 5. Preload adjustment assembly; 51. Preload spring; 52. Mounting slide cavity; 53. Spring damping seat; 54. Locking sleeve; 55. Inner ring frame; 56. Flexible support block; 57. External thread seat; 58. Adjusting screw cylinder; 59. Conical cavity; 6. Trimming assembly; 61. Gear ring; 62. Drive shaft disc; 63. Drive gear; 64. Cutting pin disc; 65. Air cylinder cavity; 66. Driven gear; 67. Push rod body; 68. Piston disc; 69. Air nozzle; 601. Sealing end. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This invention provides, for example Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The device for trimming aluminum plates with high precision includes a cutting worktable 1, a feed slide 11, and a blade holder 12. The feed slide 11 is used to drive the blade holder 12 to feed horizontally and vertically at the top of the cutting worktable 1. A cutting blade disc 13 is installed inside the blade holder 12, and a circulating air box 14 is installed outside it. The circulating air box 14 is used to blow away debris around the cutting blade disc 13. A pressing assembly 2 is provided between the feed slide 11 and the blade holder 12. The pressing assembly 2 is equidistantly arranged along the cutting edge line to press the aluminum plate and provide resistance and constraint to the cutting edge to suppress the interference of deformation on the cutting blade disc 13. The pressing assembly 2 includes a pressing arm seat 21 movably connected inside the feed carriage 11 and a stop slide 24 installed on the side of the cutter holder 12 near the cutting disc 13. A pressing plate 25 is installed at the bottom of the stop slide 24, and the pressing plate 25 is L-shaped with a curved bottom. Several pressing columns 22 and rubber-insulated diaphragms 23 are installed at the bottom of the pressing arm seat 21. The pressing columns 22 and rubber-insulated diaphragms 23 are used to maintain a multi-point adaptive pressing state between the pressing arm seat 21 and the aluminum plate during the pressing process. The pressing arm seat 21 has an L-shaped structure, and its lateral position... The extension end of the hydraulic cylinder carried by the feed slide 11 is connected to the vertical position of the L-shaped structure design, which allows the pressure arm seat 21 to obtain the driving force of the hydraulic cylinder in the horizontal direction and obtain stable motion guidance through sliding cooperation in the vertical direction. This ensures that the pressure arm seat 21 can move smoothly along the inside of the feed slide 11 under the push of the hydraulic cylinder, avoiding swaying or jamming during the movement. There are three rubber cloth clamping diaphragms 23, which are arranged at equal intervals along the cutting edge direction to form a multi-point pressure array. A power assembly 3 is provided between the cutter holder 12 and the stop slide 24. The power assembly 3 is used to drive the cutting disc 13 to rotate and drive the stop slide 24 to reciprocate along the bottom of the cutter holder 12. The power assembly 3 includes a mounting housing 31 fixedly connected to the bottom of the cutter holder 12 and communicating with its interior, and a worm gear shaft 33 installed between the cutting disc 13 and the cutter holder 12. The worm gear shaft 33 is partially located inside the mounting housing 31. A worm 34 that meshes with the worm gear shaft 33 is movably connected inside the mounting housing 31. A servo motor 32 is fixedly connected to the outside of the mounting housing 31 and is used to drive the worm 34 to rotate. A conversion assembly is provided between the worm gear 34 and the stop slide 24, and the conversion assembly is used to convert the circumferential motion of the worm gear 34 into the reciprocating motion of the stop slide 24 along the bottom of the tool holder 12. The conversion assembly includes a cavity shell 36 fixedly connected to the mounting frame 31 near the tool holder 12 and a transmission spindle 35 fixedly connected to one end of the worm gear 34. One end of the transmission spindle 35 extends into the cavity shell 36 and is fixedly connected to a rotary cam 37. A guide seat 39 is movably slidably connected inside the cavity shell 36 and is movably sleeved on the outside of the rotary cam 37. There is a floating gap between the guide seat 39 and the rotary cam 37. One end of the guide seat 39 is fixedly connected to a transmission push rod 302, and one end of the transmission push rod 302 passes through the cavity shell 36 and is fixedly connected to the top of the stop slide 24. A guide cone pin 301 is installed inside the guide seat 39. A corrugated groove 38 is provided on the outer periphery of the rotary cam 37. One end of the guide cone pin 301 is conical, and the conical end extends into the corrugated groove 38 and slides along the corrugated contour of the corrugated groove 38.

[0018] refer to Figure 3 , Figure 5 and Figure 6 As shown, a pressing component 4 is also provided between the baffle slide 24 and the pressing bending plate 25, and the pressing component 4 is used to ensure that the pressing bending plate 25 and the aluminum plate maintain an elastic and adaptive contact state during the downward movement of the pressing bending plate 25. The pressure assembly 4 includes two guide slides 42 symmetrically fixedly connected to the inner side of the top of the pressure bending plate 25 and two guide slides 41 symmetrically opened at the bottom of the baffle slide 24. Each guide slide 41 is fixedly connected to a limit ring 44. The top of each guide pin 42 passes through the pressing bend plate 25, the limiting ring 44, and the guide groove 41 in sequence, and the part of the guide pin 42 located inside the limiting ring 44 slides in cooperation with the limiting ring 44. A buffer spring 43 is also connected between each guide pin 42 and the corresponding limiting ring 44; the bottom end of each guide pin 42 is fixed inside the pressing bend plate 25, and the top end passes through the limiting ring 44 upwards, extends into the corresponding guide groove 41, and forms a sliding fit. refer to Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, a trimming assembly 6 is provided between the cutting blade disc 13 and the worm gear shaft 33. The trimming assembly 6 is used to deburr the cutting edge produced by the cutting blade disc 13 after cutting the aluminum plate. The trimming assembly 6 includes a transmission shaft disc 62 installed between the cutting blade disc 13 and the worm gear shaft 33 and a cutting pin disc 64 movably connected to the side of the blade holder 12 near the cutting blade disc 13. The bottom of the cutting pin disc 64 is aligned with the bottom of the cutting blade disc 13. A gear ring 61 is fixedly sleeved on the outside of the drive shaft disc 62. A drive gear 63 that meshes with the gear ring 61 is movably connected inside the tool holder 12. A driven gear 66 is connected between the cutting disc 64 and the tool holder 12, and the driven gear 66 meshes with the drive gear 63. An airflow assembly is provided between the transmission push rod 302 and the tool holder 12 for blowing air onto the cutting pin 64 and the vicinity of the drive gear 63. The airflow assembly includes an air cylinder cavity 65 fixedly connected to the side of the tool holder 12 near the drive gear 63 and a push rod body 67 fixedly connected to one end of the transmission push rod 302. One end of the push rod body 67 extends into the interior of the air cylinder cavity 65 and is fixedly connected to a piston disc 68. One end of the piston disc 68 is fixedly connected to a sealing end 601, and the outer periphery of both the sealing end 601 and the piston disc 68 is in contact with the interior of the air cylinder cavity 65. An air jet nozzle 69 communicating with the interior is fixedly connected to the exterior of the air cylinder cavity 65. There are two air jet nozzles 69, and the ends of the two air jet nozzles 69 are respectively provided with an inlet one-way valve and an outlet one-way valve. Outside air is drawn in through the inlet one-way valve, compressed, and then ejected directionally from the air jet nozzle 69 through the outlet one-way valve. One end of the driven gear 66 is fixedly connected to one end of the cutting head 64, and the other end of the driven gear 66 is movably connected to one side of the cutter holder 12. This connection method ensures that the driven gear 66 is reliably supported and limited by the cutter holder 12, ensuring that the driven gear 66 maintains a stable meshing position relationship with the driving gear 63 on one side of the cutter holder 12, and provides a smooth rotation drive for the cutting head 64. refer to Figure 1 , Figure 2 and Figure 4 As shown, a pre-pressure adjustment component 5 is provided between each pressure column 22 and pressure arm seat 21. The pre-pressure adjustment component 5 is used to convert the rigid displacement of the pressure column 22 and the rubber-insulated diaphragm 23 following the pressure arm seat 21 into an elastic pre-pressure applied to the aluminum plate. The pre-pressure adjustment component 5 includes an installation slide cavity 52 opened at the bottom of the pressure arm seat 21 for guiding the movement of the pressure column 22 and a spring damping seat 53 fixedly connected inside the pressure column 22. A pre-pressure spring 51 is connected between the spring damping seat 53 and the pressure column 22. The outer side of the pressure column 22 is fixedly fitted with a locking sleeve 54, and the inner side of the locking sleeve 54 is fixedly connected with an inner ring frame 55. Several flexible support blocks 56 are installed at the bottom of the inner ring frame 55, and the flexible support blocks 56 are used to keep the rubber cloth diaphragm 23 connected to the pressure column 22. The bottom end of the locking sleeve 54 is also fixedly connected to an external threaded seat 57. An adjusting screw cylinder 58 is screwed to the outside of the external threaded seat 57. The bottom end of the adjusting screw cylinder 58 is provided with a conical cavity 59 for the rubber cloth diaphragm 23 to be inserted. The inside of the conical cavity 59 is a conical structure, and its conical surface forms an inclined fit with the outer wall of the flexible support block 56. There are three flexible support blocks 56. The outer surface of the rubber-insulated diaphragm 23 is made of uneven surface at the part that contacts the flexible support block 56, so that the flexible support block 56 and the outer surface of the rubber-insulated diaphragm 23 maintain stable contact. The flexible support block 56 is made of flexible material at the part that contacts the rubber-insulated diaphragm 23. This flexible part can be embedded in the uneven structure of the outer surface of the rubber-insulated diaphragm 23 to form a local interlocking shape and position, enhance the contact stability and friction between the two, prevent relative slippage during adjustment or operation, and ensure the reliability of the locking state.

[0019] Working principle: When using: refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when high-precision and stable cutting of the edge of an aluminum plate is required; First, the aluminum plate to be cut is placed on top of the cutting workbench 1. The two ends of the aluminum plate are limited by the clamping seats inside the cutting workbench 1 to prevent displacement during the cutting process. Airflow is generated inside the circulating air box 14 to blow and clean the area near the knife holder 12 and the cutting blade disc 13. The telescopic component inside the feed carriage 11 pushes the knife holder 12 and the cutting blade disc 13 closer to the top of the aluminum plate. When the knife holder 12 descends, it drives the pressure arm seat 21 to move synchronously to the top of the aluminum plate, so that the rubber clamping diaphragm 23 is in pre-contact with the surface of the aluminum plate before the cutting blade disc 13 arrives. The rubber clamping diaphragm 23 then applies pressure to the pre-compression spring 51. The pre-compression spring 51 is compressed between the pressure column 22 and the spring damping seat 53. Its elastic force is transmitted through the pressure column 22 to the rubber clamping diaphragm 23, so that each pressure column 22 and the corresponding rubber clamping diaphragm 23 are compressed. The diaphragm 23 is attached to the surface of the aluminum plate with a pre-pressure that gradually increases from zero. The compression of the pre-pressure spring 51 continues to increase as the cutter holder 12 moves downward, and the pressing force increases linearly. Before the cutting disc 13 contacts the aluminum plate, the pressing force has reached the set value and firmly presses the aluminum plate under the pressing arm seat 21. Due to its own material characteristics, the rubber-insulated diaphragm 23 forms a flexible surface contact with the surface of the aluminum plate with a high coefficient of friction. Under the elastic pre-pressure of the pre-pressure spring 51, the rubber-insulated diaphragm 23 generates sufficient static friction between itself and the aluminum plate to constrain the aluminum plate. The three rubber-insulated diaphragms 23 and the pressing column 22 are arranged at equal intervals near the cutting edge to form a pressing line array parallel to the cutting edge. The aluminum plate is constrained by multiple pressing points distributed at equal intervals on the cutting line. The aluminum plate segments between adjacent pressing points are constrained by both sides and cannot be locally lifted. refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the rubber-insulated diaphragm 23 can also be pre-adjusted according to the current surface condition of the aluminum plate. The pre-compression spring 51 provides a vertical spring force to press the rubber-insulated diaphragm 23 onto the aluminum plate. Due to the obstruction of the aluminum plate, the rubber-insulated diaphragm 23 undergoes a horizontal backward displacement, maintaining a stable horizontal frictional displacement path between it and the aluminum plate. Rotating the adjusting screw 58 causes it to engage with the external threaded seat 57. The adjusting screw 58 moves downward along the outside of the locking sleeve 54. The downward movement of the adjusting screw 58 drives the conical cavity 59 to move along the outside of the rubber-insulated diaphragm 23. The inside of the conical cavity 59 rotates and moves downward along the outside of the three flexible support blocks 56. The squeezing force generated between the inner wall of the conical cavity 59 and the outside of the three flexible support blocks 56 gradually decreases. The three flexible support blocks 56 slowly move and reset along the bottom of the inner ring frame 55, and their pressing force on the outside of the rubber-insulated diaphragm 23 weakens accordingly. The rubber-insulated diaphragm 23 is in the locking sleeve 54 When the locking function between the internal part and the pressure column 22 is lost, the rubber-insulated diaphragm 23 can be adjusted downward along the inside of the locking sleeve 54 to achieve adaptive adjustment of the distance between the rubber-insulated diaphragm 23 and the aluminum plate. In the unlocked state, the rubber-insulated diaphragm 23 can also be rotated and adjusted inside the locking sleeve 54 to synchronously adjust the contact angle between the rubber-insulated diaphragm 23 and the aluminum plate. This is used to reset the pre-compression deformation working point of the rubber-insulated diaphragm 23 so that it always works within the optimal elastic range. This adjustment method can ensure sufficient frictional clamping force, improve the dynamic anti-overturning ability of the rubber-insulated diaphragm 23 in horizontal feeding, keep the contact state between the bottom of the rubber-insulated diaphragm 23 and the aluminum plate stable, and distribute the vertical pressure and friction evenly on the entire contact surface. This eliminates the uneven wear of the rubber-insulated diaphragm 23 or local indentation on the aluminum plate caused by angle mismatch, and also prevents the rubber-insulated diaphragm 23 from plastic deformation or excessive wear caused by excessive compression. refer to Figure 1 and Figure 3 As shown, secondly, the rubber-insulated diaphragm 23 and the aluminum plate reach a suitable clamping and constraint state. After the cutting disc 13 is located on the surface of the aluminum plate, the servo motor 32 drives the worm 34 to rotate inside the mounting frame 31. The rotation of the worm 34 drives the worm wheel shaft 33 to rotate inside the mounting frame 31 and the cutter holder 12. The meshing between the worm 34 and the worm wheel shaft 33 is a continuous line contact. The helical tooth surface of the worm 34 and the tooth surface of the worm wheel shaft 33 are in continuous sliding contact. This continuous contact characteristic makes there no periodic meshing impact during the transmission process. The cutting disc 13 rotates extremely smoothly without micro-pulsation of the rotation speed. The cutting disc 13 rotates with the worm wheel shaft 33 and cuts along the surface of the aluminum plate. The low-speed and stable rotation can provide sufficient cutting force, which is convenient for stable edge trimming of the aluminum plate. refer to Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, during this process, the pressing plate 25 and the stop slide 24 descend synchronously with the cutter holder 12 and are fed horizontally. Before the cutting begins, the pressing plate 25 descends with the cutter holder 12 to above the surface of the aluminum plate. During the cutting process of the cutting disc 13, the pressing plate 25 and the cutter holder 12 move together along the cutting line. Its L-shaped vertical wall is always between the cutter holder 12 and the cut scrap aluminum strip, forming a moving physical isolation barrier. This prevents the scrap aluminum strip from warping, bouncing, or curling at the moment of cutting and separation from the cutting disc 13. The pressing plate 25 and the stop slide 24 move together with the cutter holder 12. During the horizontal feeding process of frame 12, the rotation of worm gear 34 simultaneously drives transmission spindle 35 to rotate synchronously inside cavity shell 36. Rotary cam 37 rotates with transmission spindle 35 inside cavity shell 36. The rotation of rotary cam 37 drives its external corrugated groove 38 to rotate. The internal contour of corrugated groove 38 pushes guide cone pin 301 to move. Guided by guide cone pin 301 along corrugated groove 38, guide seat 39 moves horizontally reciprocatingly along the outside of rotary cam 37. The reciprocating movement of guide seat 39 drives transmission push rod 302 to reciprocate along cavity shell 36. Pressing plate 25 and stop slide 24 are moved by transmission push rod 302. Driven by the movement, the plate moves back and forth between the aluminum plate and the scrap aluminum strip. The curved surface of the pressing plate 25 first contacts the upper surface of the scrap aluminum strip. The curvature of the curved surface gradually expands the contact from point contact to line contact. The scrap aluminum strip is flexibly pressed downwards and pressed against the top of the cutting table 1. The low-friction sliding characteristics of the curved surface ensure that even if the scrap aluminum strip is continuously pressed down by the pressing plate 25 during horizontal cutting, it will not be dragged and deformed due to excessive frictional resistance. During the back and forth movement, the pressing plate 25 generates a relative compressive force with the aluminum plate. The pressing plate 25 moves upwards under the force, driving the internal guide slide 42 to move upwards, guiding the... When the slide column 42 moves upward, it is guided by the limiting ring 44 and the guide slide groove 41, so that the pressing plate 25 moves along the bottom of the material blocking slide 24 according to the preset trajectory. Under the drive of the guide slide column 42, the buffer spring 43 is elastically compressed between the limiting ring 44 and the guide slide column 42. Its own elasticity gives the guide slide column 42 a downward thrust, which applies a normal pressing force to the cut and separated waste aluminum strip. The curvature change of this pressing force along the cutting feed direction generates an outward guiding force on the waste aluminum strip, so that the material at the cutting edge does not produce vertical vibration at the moment of cutting. The force of the cutting disc 13 is more concentrated on the cutting surface, improving the cutting quality of the aluminum plate. refer to Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8As shown, finally, the cutting disc 13 continues to trim the aluminum plate, and the pressing plate 25 presses down the scrap aluminum strips near the cutting disc 13 and moves back and forth. While the cutting disc 13 and the worm gear shaft 33 rotate, they drive the transmission shaft disc 62 to rotate inside the tool holder 12. The rotation of the transmission shaft disc 62 drives the gear ring 61 to rotate synchronously. The gear ring 61 maintains meshing with the drive gear 63, driving the drive gear 63 to rotate inside the tool holder 12. When the drive gear 63 rotates, it maintains meshing with the driven gear 66, driving the cutting disc 64 to rotate synchronously, making it synchronously feed horizontally with the cutting disc 13. After the cutting disc 13 completes the aluminum plate cutting, the cut edge of the aluminum plate just enters the working area of ​​the following cutting disc 64. The grinding blade immediately grinds and deburrs the newly cut surface. During the meshing transmission of the driven gear 63 and the driven gear 66, the reciprocating movement of the transmission push rod 302 simultaneously drives the push rod body 67 to reciprocate along the inside of the air cylinder cavity 65. When the push rod body 67 moves, it drives the piston disc 68 and the sealing end 601 to move along the inside of the air cylinder cavity 65, drawing in external gas through the air nozzle 69. The gas is compressed inside the air cylinder cavity 65. As the push rod body 67 pushes, the sealing end 601 and the piston disc 68 spray the compressed gas inside the air cylinder cavity 65 out through the air nozzle 69. The reciprocating movement of the push rod body 67 generates a pulsed airflow around the driving gear 63 and the driven gear 66, forming a micro-air cushion between the tooth surfaces, blowing away the aluminum dust attached to the tooth surfaces, keeping the transmission tooth surfaces clean, ensuring that the cutting blade disc 64 grinds smoothly and controllably, and further improving the edge trimming quality of the aluminum plate.

[0020] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision aluminum plate trimming device, comprising a cutting worktable (1), a feed carriage (11), and a blade holder (12), wherein the feed carriage (11) is used to drive the blade holder (12) to feed horizontally and vertically at the top of the cutting worktable (1), wherein a cutting blade disc (13) is installed inside the blade holder (12), and a circulating air box (14) is installed outside the blade holder (12), wherein the circulating air box (14) is used to blow away debris around the cutting blade disc (13), characterized in that: A pressing assembly (2) is provided between the feed carriage (11) and the cutter holder (12), and the pressing assembly (2) is arranged equidistantly along the cutting edge line to press the aluminum plate and to restrain the cutting edge to suppress the interference of deformation on the cutting disc (13). The pressing assembly (2) includes a pressing arm seat (21) movably connected inside the feed carriage (11) and a stop slide (24) installed on the side of the cutter holder (12) near the cutting disc (13). The bottom of the stop slide (24) is equipped with a pressing bending plate (25), and the pressing bending plate (25) is L-shaped with a curved surface at the bottom. The bottom of the pressing arm seat (21) is equipped with several pressing columns (22) and a rubber-insulated diaphragm (23). The pressing columns (22) and the rubber-insulated diaphragm (23) are used to maintain the multi-point adaptive pressing state between the pressing arm seat (21) and the aluminum plate during the pressing process of the aluminum plate. A power assembly (3) is provided between the cutter holder (12) and the material stop slide (24), and the power assembly (3) is used to drive the cutting blade disc (13) to rotate, and at the same time drive the material stop slide (24) to reciprocate along the bottom of the cutter holder (12); Each of the pressure column (22) and pressure arm seat (21) is provided with a pre-pressure adjustment component (5), and the pre-pressure adjustment component (5) is used to convert the rigid displacement of the pressure column (22) and the rubber-insulated diaphragm (23) following the pressure arm seat (21) into an elastic pre-pressure applied to the aluminum plate.

2. The high-precision aluminum plate trimming device according to claim 1, characterized in that: The power assembly (3) includes a mounting frame (31) fixedly connected to the bottom of the cutter holder (12) and communicating with its interior, and a worm gear shaft (33) installed between the cutting disc (13) and the cutter holder (12). The worm gear shaft (33) is partially located inside the mounting frame (31). The mounting frame (31) is movably connected to a worm (34) that meshes with the worm gear shaft (33). A servo motor (32) is fixedly connected to the outside of the mounting frame (31), and the servo motor (32) is used to drive the worm (34) to rotate. A conversion component is provided between the worm (34) and the stop slide (24), and the conversion component is used to convert the circumferential motion of the worm (34) into the reciprocating motion of the stop slide (24) along the bottom of the tool holder (12).

3. The high-precision aluminum plate trimming device according to claim 2, characterized in that: The conversion assembly includes a cavity shell (36) fixedly connected to the mounting frame (31) near the tool holder (12) and a transmission spindle (35) fixedly connected to one end of the worm gear (34). One end of the transmission spindle (35) extends into the cavity shell (36) and is fixedly connected to a rotary cam (37). A guide seat (39) is movably slidably connected inside the cavity shell (36), and the guide seat (39) is movably sleeved on the outside of the rotary cam (37). There is a floating gap between the guide seat (39) and the rotary cam (37). One end of the guide seat (39) is fixedly connected to a transmission push rod (302), and one end of the transmission push rod (302) passes through the cavity shell (36) and is fixedly connected to the top of the baffle slide (24). A guide cone pin (301) is installed inside the guide seat (39). A corrugated groove (38) is provided on the outer periphery of the rotary cam (37). One end of the guide cone pin (301) is conical, and the conical end extends into the corrugated groove (38) and slides along the corrugated contour of the corrugated groove (38). A trimming assembly (6) is provided between the cutting disc (13) and the worm gear shaft (33), and the trimming assembly (6) is used to deburr the cutting edge produced by the cutting disc (13) after cutting the aluminum plate.

4. The high-precision aluminum plate trimming device according to claim 1, characterized in that: The material stop slide (24) and the pressing bending plate (25) are further provided with a pressing component (4), and the pressing component (4) is used to ensure that the pressing bending plate (25) and the aluminum plate maintain an elastic adaptive contact state during the downward movement of the pressing bending plate (25). The pressure assembly (4) includes two guide slides (42) symmetrically fixedly connected to the inner side of the top of the pressure bending plate (25) and two guide slides (41) symmetrically opened at the bottom of the baffle slide (24). Each guide slide (41) is fixedly connected to a limit stop ring (44). The top of each guide pin (42) is sequentially penetrated by a pressure plate (25), a limiting ring (44), and a guide groove (41), and the portion of the guide pin (42) located inside the limiting ring (44) slides in cooperation with the limiting ring (44). A buffer spring (43) is also connected between each guide pin (42) and the corresponding limiting ring (44).

5. The high-precision aluminum plate trimming device according to claim 3, characterized in that: The trimming assembly (6) includes a drive shaft disc (62) installed between the cutting blade disc (13) and the worm gear shaft (33) and a cutting pin disc (64) movably connected to the side of the blade holder (12) near the cutting blade disc (13), and the bottom of the cutting pin disc (64) corresponds to the bottom of the cutting blade disc (13); A gear ring (61) is fixedly sleeved on the outside of the drive shaft disc (62), and a drive gear (63) that meshes with the gear ring (61) is movably connected inside the tool holder (12). A driven gear (66) is connected between the cutting disc (64) and the tool holder (12), and the driven gear (66) meshes with the drive gear (63). An airflow assembly is provided between the transmission push rod (302) and the tool holder (12) for blowing air onto the cutting disc (64) and the vicinity of the drive gear (63).

6. The high-precision aluminum plate trimming device according to claim 5, characterized in that: The airflow assembly includes an air cylinder cavity (65) fixedly connected to the side of the knife holder (12) near the drive gear (63) and a push rod body (67) fixedly connected to one end of the transmission push rod (302). One end of the push rod body (67) extends into the interior of the air cylinder cavity (65) and is fixedly connected to a piston disc (68). One end of the piston disc (68) is fixedly connected to a sealing end (601), and the outer periphery of the sealing end (601) and the piston disc (68) are both in contact with the interior of the air cylinder cavity (65). An air nozzle (69) communicating with the interior is fixedly connected to the exterior of the air cylinder cavity (65).

7. The high-precision aluminum plate trimming device according to claim 1, characterized in that: The preload adjustment assembly (5) includes an installation slide cavity (52) opened at the bottom of the pressure arm seat (21) for guiding the movement of the pressure column (22) and a spring damping seat (53) fixedly connected inside the pressure column (22), and a preload spring (51) is connected between the spring damping seat (53) and the pressure column (22). The outer side of the pressing column (22) is fixedly fitted with a locking sleeve (54), and the inner side of the locking sleeve (54) is fixedly connected with an inner ring frame (55). Several flexible support blocks (56) are installed at the bottom of the inner ring frame (55), and the flexible support blocks (56) are used to keep the rubber cloth diaphragm (23) connected to the pressing column (22).

8. The high-precision aluminum plate trimming device according to claim 7, characterized in that: The bottom end of the locking sleeve (54) is also fixedly connected to an external threaded seat (57). An adjusting screw (58) is screwed to the outside of the external threaded seat (57). The bottom end of the adjusting screw (58) is provided with a conical cavity (59) for inserting a rubber-insulated diaphragm (23). The interior of the conical cavity (59) has a conical structure, and its conical surface forms an oblique fit with the outer wall of the flexible support block (56).

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