A sliding positioning platform for a laser film opening device

Abstract

The present invention discloses a sliding positioning platform for a laser film opening device, which includes a laser film cutting machine body, a moving supplement mechanism, a magnetic adsorption mechanism and a suction force control mechanism. The laser film cutting machine body includes a workbench, a vertical plate is installed on the upper surface of the workbench, a lead screw is rotatably installed between the vertical plates, a moving supplement mechanism is installed on the upper surface of the workbench, the moving supplement mechanism includes a moving platform and a moving seat screwed on the surface of the lead screw, a magnetic adsorption mechanism is installed on the top of the moving platform, the magnetic adsorption mechanism includes a support plate, a through hole, a pressing member and a magnetic adsorption plate, the magnetic adsorption plate is slidably installed inside the support plate, the pressing member is installed inside the through hole and is used for fixing the film to be cut, the suction force control mechanism includes a fixing plate, a linkage shaft, a swing rod, a ratchet wheel and an engaging wedge tooth, the ratchet wheel is limited by the engaging wedge tooth, during operation, the lifting of the magnetic adsorption plate can be controlled through the swing rod to drive the pressing member to synchronously adjust the height, so as to ensure the stable fixation of the film to be cut and quickly release it after cutting is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly to a sliding positioning platform for a laser film-opening device. Background Art

[0002] Laser cutting technology is widely used in fields such as electronic manufacturing, precision machining, and material cutting. Due to its high cutting precision, fast efficiency, and wide range of applicable materials, it occupies an important position in modern industrial production. Laser cutting equipment usually includes a laser generator, a moving platform, a fixing device, and a control system to achieve efficient processing of various workpieces. Especially in the cutting application of film materials, higher requirements are put forward for the product fixing method, cutting precision, and flexibility of the equipment.

[0003] Existing laser film-cutting equipment usually uses traditional clamping or vacuum adsorption methods to fix products to ensure the stability of the cutting process. However, traditional fixing methods have certain limitations. For example, clamping structures are often difficult to adapt to products of various shapes, resulting in inconvenient product clamping and affecting production efficiency; while the vacuum adsorption method may cause unstable fixation due to insufficient adsorption force when facing special-shaped or thinner film materials, thus affecting cutting precision. In addition, in order to achieve cutting in different directions, existing equipment mostly adopts a two-axis movement method, that is, two-dimensional cutting of workpieces is completed through the linear movement of the X-axis and Y-axis. However, when performing circular arc cutting or complex arc surface cutting, simply relying on two-axis movement control is not only complicated in operation but also affects processing efficiency and precision.

[0004] In response to the above problems, some existing equipment introduces a rotating platform to achieve multi-angle rotary cutting of products. However, the rotating structure is usually relatively complex, and there are problems such as difficult rotation precision control and unstable fixing method. Especially when processing larger-sized or thinner materials, the coordination of fixing and rotation control becomes an important factor affecting cutting precision. In addition, there are still certain deficiencies in the suction force adjustment and stability of the existing magnetic adsorption fixing method. For example, during the cutting process, it is difficult to achieve synchronous control of the tightening and loosening adjustment of the magnetic adsorption fixing parts, resulting in uneven fixing forces in different regions and affecting the overall cutting effect of the product. At the same time, the release operation of the existing magnetic adsorption components is often relatively complex, which is not convenient for rapid replacement of products and affects production efficiency. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a sliding positioning platform for a laser film-opening device, which improves the flexibility and stability of product fixing, and at the same time optimizes the cutting path control method to enhance the overall processing precision and efficiency of the equipment.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0007] A sliding positioning platform for a laser film opening device, comprising a laser film cutting machine body, the laser film cutting machine body including a workbench, vertical plates are arranged at the front and rear of the upper surface of the workbench, a lead screw is symmetrically and rotatably installed between the two vertical plates, and a moving supplement mechanism is installed on the upper surface of the workbench;

[0008] The moving supplement mechanism includes a moving platform and a moving seat screwed on the surface of the lead screw, and a magnetic adsorption mechanism is installed on the top of the moving platform;

[0009] The magnetic adsorption mechanism is used to adsorb and fix the film to be cut. The magnetic adsorption mechanism includes a support plate and a pressing member fixed on the upper surface of the moving platform. Through holes are evenly formed on the surface of the support plate, the pressing member is installed inside the through hole, the pressing member is used to fix the film to be cut, and a magnetic attraction plate is slidably installed inside the support plate;

[0010] A suction force control mechanism is further arranged on the upper surface of the moving platform, and the suction force control mechanism is used to control the magnetic attraction plate.

[0011] Furthermore, a first track groove is formed at the center of the surface of the workbench, a sliding bolt is arranged at the center of the bottom of the moving platform, the sliding bolt is placed inside the first track groove, limiting grooves are formed on both sides of the lower surface of the moving platform, a convex bolt is arranged on the top of the moving seat, and the convex bolt is inside the limiting groove.

[0012] Furthermore, a gantry is spanned on the top of the workbench, servo motors are symmetrically arranged at the rear of the laser film cutting machine body, the end of the lead screw is installed at the output end of the servo motor, an angle scale plate is fixed on one side of the moving platform, and a scale indicator is vertically fixed on the outside of one of the moving seats, and the scale indicator corresponds to the angle scale plate.

[0013] Furthermore, the support plate has an inverted U-shaped structure, the magnetic attraction plate slides up and down inside the support plate, the pressing member includes a bolt body sliding inside the through hole, a pressing plate is arranged at the top of the bolt body, the pressing plate is placed above the support plate to press and fix the film to be cut, a magnetic block is embedded at the bottom of the bolt body, and the magnetic block adsorbs with the magnetic attraction plate.

[0014] Furthermore, sliding grooves are symmetrically and vertically formed on both sides of the support plate, columns are symmetrically arranged on both sides of the upper surface of the moving platform, the columns are placed on both sides of the support plate, the positions of the columns correspond to the sliding grooves, and convex blocks are symmetrically arranged on both sides of the magnetic attraction plate.

[0015] Furthermore, the convex block penetrates through the sliding groove and slides on the column, a first spring is sleeved below the surface of the column, the top of the first spring contacts the lower surface of the convex block, and fixing bolts are symmetrically welded at the front and rear centers of the magnetic attraction plate, and the fixing bolts extend beyond the front and rear surfaces of the support plate.

[0016] Further, the suction control mechanism includes fixing plates symmetrically fixed on one side of the upper surface of the moving platform. A linkage shaft is rotatably installed between the two fixing plates. The linkage shaft is disposed below the magnetic suction plate. Swing rods are symmetrically arranged on the surface of the linkage shaft. The swing rods are perpendicular to the axis of the linkage shaft. Second track grooves are formed at the ends of the swing rods. The fixing bolts are disposed inside the second track grooves.

[0017] Further, a handle is arranged at the end of the swing rod on the front side. The linkage shaft penetrates through the front fixing plate, and a ratchet wheel is installed at the front end of the linkage shaft.

[0018] Further, an installation groove is transversely formed on the surface of the front fixing plate. A moving block is slidably installed inside the installation groove. One end of the moving block is provided with meshing wedge teeth, and the meshing wedge teeth are meshed with the ratchet wheel.

[0019] Further, a control plate is arranged at one end of the front side surface of the moving block away from the meshing wedge teeth. A second spring is placed inside the installation groove, and one end of the second spring is in contact with the moving block.

[0020] The present invention provides a sliding positioning platform for a laser film opening device, having the following beneficial effects:

[0021] The present invention provides a sliding positioning platform for a laser film opening device, which effectively solves many problems in the prior art and improves the overall performance of the device by optimizing the product fixing method, enhancing the flexibility during the cutting process, and improving the arc cutting efficiency.

[0022] The present invention uses a magnetic adsorption mechanism to fix the film to be cut. Through holes are evenly formed in the support plate. Pressure members are installed inside the through holes. Magnets are embedded at the bottoms of the pressure members. The magnets are adsorbed and fixed by the magnetic force of the magnetic suction plate, and the height of the magnetic suction plate can be adjusted through the suction control mechanism, so that the pressure members move downward synchronously to realize the stable pressing of the film to be cut. Compared with the traditional clamping or vacuum adsorption fixing methods, the magnetic adsorption fixing method of the present invention can adapt to various film materials with different shapes and thicknesses, ensure uniform distribution of the fixing force, effectively avoid deformation or displacement of the film material due to uneven fixing force, and thus improve the cutting accuracy. In addition, after the cutting is completed, the film material can be quickly released by releasing the magnetic suction force of the magnetic adsorption mechanism, avoiding the cumbersome clamping unlocking steps and improving the production efficiency.

[0023] The sliding positioning platform of the present invention adopts a screw transmission structure, and the two ends of the screw are respectively connected to the inner bearings of the vertical plate to ensure that it remains stable during rotation. At the same time, the surface of the screw is processed with precision threads, so that the moving seat can be smoothly transmitted, and the vibration generated during the movement is reduced, thereby improving the positioning accuracy. The rotation of the screw can drive the moving seat to move linearly along the surface of the workbench, so that the movement of the mobile platform in the X-axis and Y-axis directions is more precise, and a stable and controllable two-dimensional cutting path can be achieved. Compared with the traditional belt or gear transmission method, the screw transmission mechanism can provide higher movement accuracy, and the mobile platform can be synchronously controlled by a double screw, further improving the stability and accuracy of the equipment operation.

[0024] The present invention provides a sliding bolt at the bottom of the mobile platform, the sliding bolt is placed inside the first track groove, and a convex bolt is provided on the top of the mobile seat, the convex bolt slides in the limit groove, through this structure, the mobile platform can be kept in the established track for linear movement, and under special circumstances, the mobile platform can be rotated by dislocating the convex bolt to achieve arc cutting or complex curve cutting. Traditional laser film cutting equipment usually relies on the linkage movement of the X-axis and the Y-axis when performing arc cutting, while the present invention uses the rotation mechanism of the sliding positioning platform to enable the equipment to independently control the rotation angle of the mobile platform, thereby reducing the complex control problems caused by the dual-axis linkage during the arc cutting process, improving the cutting efficiency, and through the cooperation of the angle scale plate and the scale indication, the rotation angle adjustment is more intuitive and accurate.

[0025] The suction control mechanism of the present invention realizes the precise downward movement and release of the magnetic suction plate through the cooperation of the linkage shaft, the swing rod, the ratchet and the meshing wedge-shaped teeth. When the film material needs to be fixed, the operator drives the swing rod to press down through the handle, thereby driving the magnetic suction plate to descend evenly, and through the locking mechanism of the ratchet and the meshing wedge-shaped teeth, it is ensured that the magnetic suction plate remains stable after the descent, and will not be loosened due to external vibration or accidental operation, thereby improving the stability of the cutting process. When the cutting is completed, the meshing wedge-shaped teeth are disengaged from the ratchet by toggling the control panel, and the magnetic suction plate can be quickly reset under the action of the first spring, thereby driving the pressing piece to move up synchronously, so that a gap is generated between the film material and the support plate, which is convenient for taking out the finished product, and improving the convenience of operation and production efficiency.

[0026] To summarize, the present invention optimizes the fixing method, adopts a high-precision transmission mechanism, adds a rotary cutting function, and improves the suction control mechanism, so that the laser film cutting equipment can more flexibly adapt to film materials of different shapes and thicknesses, thereby improving the cutting accuracy and efficiency. At the same time, it also optimizes the operation convenience of the equipment, making the replacement of film materials and adjustment of cutting paths more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 Schematic three-dimensional structure diagram of the platform arc compensation state of the present invention;

[0029] Figure 3 Schematic three-dimensional structure diagram of the workbench of the present invention;

[0030] Figure 4 Schematic bottom view structure diagram of the moving platform of the present invention;

[0031] Figure 5 Schematic installation diagram of the moving platform and the support plate of the present invention;

[0032] Figure 6 of the present invention Figure 5 Schematic cross-sectional structure diagram;

[0033] Figure 7 Schematic three-dimensional structure diagram of the magnetic attraction plate of the present invention;

[0034] Figure 8 Schematic structure diagram of the suction force control of the present invention;

[0035] Figure 9 Schematic three-dimensional structure diagram of the pressing member of the present invention.

[0036] Wherein, 1, laser film cutting machine body; 11, workbench; 12, gantry; 13, vertical plate; 14, lead screw; 15, servo motor; 16, first track groove;

[0037] 2, moving compensation mechanism; 21, moving platform; 22, limit groove; 23, sliding bolt; 24, angle scale plate; 25, moving seat; 26, protruding bolt; 27, scale indicator plate;

[0038] 3, magnetic adsorption mechanism; 31, support plate; 32, through hole; 33, pressing member; 331, bolt body; 332, pressing plate; 333, magnetic block; 34, sliding groove; 35, magnetic attraction plate; 36, protruding block; 37, fixing bolt; 38, column; 39, first spring;

[0039] 4, suction force control mechanism; 41, fixing plate; 401, installation groove; 42, linkage shaft; 43, swing rod; 44, second track groove; 45, handle; 46, ratchet; 47, moving block; 48, control plate; 49, meshing wedge teeth; 410, second spring. Detailed implementation manners

[0040] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1:

[0042] Refer to Figures 1-9 , a sliding positioning platform for a laser film opening device, including a laser film cutting machine body 1. The laser film cutting machine body 1 includes a workbench 11. Vertical plates 13 are arranged on the front and rear surfaces of the upper surface of the workbench 11. A lead screw 14 is symmetrically and rotatably installed between the two vertical plates 13. The two ends of the lead screw 14 are respectively connected to the inner bearings of the vertical plates 13 to ensure the stable rotation of the lead screw 14 and reduce the running resistance; the surface of the lead screw 14 is precision machined with threads to ensure the transmission accuracy during the movement. The rotation of the lead screw 14 can drive the moving seat 25 installed thereon to perform a linear movement, thereby driving the forward and backward displacement of the moving platform 21 to ensure the accuracy and smoothness of the cutting work; a moving supplement mechanism 2 is installed on the upper surface of the workbench 11. The moving supplement mechanism 2 is used to assist in adjusting the position of the moving platform 21 to adapt to the cutting requirements of different products and improve the application range and flexibility of the device.

[0043] The moving supplement mechanism 2 includes a moving platform 21 and a moving seat 25 screwed onto the surface of the lead screw 14. The moving seat 25 is installed on the lead screw 14 by a threaded screwing method, and a high-strength copper nut is provided inside the moving seat 25 to improve wear resistance and reduce frictional resistance, ensuring that a high transmission accuracy can still be maintained after long-term use; a magnetic adsorption mechanism 3 is installed on the top of the moving platform 21. The magnetic adsorption mechanism 3 is used to adsorb and fix the film to be cut. The magnetic adsorption mechanism 3 includes a support plate 31 fixed on the upper surface of the moving platform 21 and a pressing member 33. The support plate 31 is made of wear-resistant alloy material to improve its strength and corrosion resistance and ensure that it is not easily deformed during long-term use; a plurality of through holes 32 are evenly formed on the surface of the support plate 31. The diameter and distribution of the through holes 32 are optimized according to the sizes of common film materials to ensure that the pressing member 33 can flexibly match different specifications of the film to be cut and provide uniform force; the pressing member 33 is installed inside the through hole 32. The pressing member 33 is used to fix the film to be cut to prevent the film material from shifting due to the influence of air flow during the cutting process and improve the cutting accuracy; a magnetic attraction plate 35 is slidably installed inside the support plate 31. The magnetic attraction plate 35 is made of a material with high magnetic permeability and is surface oxidized to enhance durability and oxidation resistance and improve the stability of the adsorption force.

[0044] Refer to Figures 1-4, a first track groove 16 is opened at the center of the surface of the workbench 11. The first track groove 16 is manufactured by a high-precision processing technology to ensure that the track surface is smooth and has a low friction coefficient, thereby reducing the sliding resistance and improving the stability of movement; a sliding bolt 23 is provided at the center of the bottom of the moving platform 21. The sliding bolt 23 is made of a high-strength alloy material and is subjected to precision grinding treatment to ensure smooth sliding between it and the first track groove 16, and at the same time reduce the wear caused by long-term use; the sliding bolt 23 is placed inside the first track groove 16. The presence of the sliding bolt 23 enables the moving platform 21 to be strictly limited during the movement along the Y-axis, avoiding deviation caused by lateral force; limiting grooves 22 are opened on both sides of the lower surface of the moving platform 21. The processing accuracy of the limiting grooves 22 is relatively high to ensure close cooperation with the protruding bolts 26 without obvious gaps, improving the positioning accuracy; a protruding bolt 26 is provided at the top of the moving seat 25. The protruding bolt 26 slides inside the limiting groove 22 and realizes the rotation control of the moving platform 21 through precise cooperation.

[0045] Refer to Figures 1-5 , a gantry 12 spans across the top of the workbench 11. The gantry 12 is made of a high-strength aluminum alloy material to ensure its light weight while still having sufficient structural rigidity, thereby reducing the accuracy loss of the equipment caused by vibration; servo motors 15 are symmetrically arranged at the rear side of the laser film cutting body 1. The servo motors 15 adopt a 400W high-precision servo drive system, which can achieve high dynamic response and ensure the stability and accuracy of movement through a closed-loop control system; the end of the lead screw 14 is installed at the output end of the servo motor 15. The rotation accuracy of the lead screw 14 directly affects the movement accuracy of the moving platform 21. Therefore, the servo motor 15 feeds back signals through a high-precision encoder and adjusts the rotation angle of the lead screw 14 in real time to ensure the accuracy requirements during the cutting process; an angular scale plate 24 is fixed on one side of the moving platform 21. The surface of the angular scale plate 24 is provided with high-precision scale lines to facilitate the operator to accurately measure and adjust the rotation angle of the platform. A scale indicator is vertically fixed on the outside of one of the moving seats 25, and the scale indicator corresponds to the angular scale plate 24 to facilitate observing and adjusting the rotation angle of the moving platform 21.

[0046] Refer to Figures 5-7, the support plate 31 has an inverted U-shaped structure. The U-shaped structure design enables the magnetic attraction plate 35 to slide up and down inside the support plate 31, ensuring that the adsorption force can be evenly distributed on the entire pressing member 33, improving the stability of the film material fixation; the pressing member 33 includes a bolt body 331 that slides inside the through hole 32. A pressing plate 332 is provided at the top of the bolt body 331. The pressing plate 332 is placed above the support plate 31 and is designed to be coated with an elastic material to avoid damaging the film to be cut when applying pressure, improving the applicable range and fixation effect of the film material; a magnet 333 is embedded at the bottom of the bolt body 331. The magnet 333 adsorbs with the magnetic attraction plate 35. By the magnetic adsorption method, it is ensured that the pressing member 33 can firmly fix the film to be cut, and through the height adjustment of the magnetic attraction plate 35, the synchronous adjustment of the pressing member 33 is realized to adapt to the fixation requirements of film materials with different thicknesses.

[0047] Refer to Figures 8-9 , the suction force control mechanism 4 includes fixing plates 41 symmetrically fixed on one side of the upper surface of the moving platform 21. The fixing plates 41 are made of stainless steel materials to improve their corrosion resistance and rigidity, ensuring the reliability of long-term use; a linkage shaft 42 is rotatably installed between the two fixing plates 41. The linkage shaft 42 is placed below the magnetic attraction plate 35. The linkage shaft 42 is made of high-strength steel and is precision machined to ensure the stability and wear resistance during rotation; swing rods 43 are symmetrically arranged on the surface of the linkage shaft 42. The swing rods 43 are perpendicular to the axis of the linkage shaft 42. A second track groove 44 is provided at the end of the swing rod 43. A wear-resistant bushing is provided inside the second track groove 44 to reduce the friction coefficient and improve the smoothness of operation; the fixing bolt 37 is placed inside the second track groove 44, and through the limiting structure, it is ensured that it can slide and adjust according to the set track, thereby controlling the lifting movement of the magnetic attraction plate 35.

[0048] Refer to Figure 8 , a mounting groove 401 is transversely opened on the surface of the front fixing plate 41. The mounting groove 401 is processed by high-precision CNC to ensure the smoothness of the internal sliding mechanism; a moving block 47 is slidably installed inside the mounting groove 401. The moving block 47 is made of a high molecular wear-resistant material to reduce wear during long-term use and improve the overall durability; a meshing wedge tooth 49 is provided at one end of the moving block 47. The meshing wedge tooth 49 meshes with the ratchet 46, and through the high-precision meshing method, it is ensured that the lifting of the magnetic attraction plate 35 can be stably executed, avoiding accidental loosening of the magnetic attraction plate 35 due to misoperation, and improving the safety and reliability of the equipment.

[0049] Embodiment 2: A stable fixing device based on a magnetic adsorption mechanism

[0050] In this embodiment, the magnetic adsorption mechanism 3 is made of a high magnetic permeability alloy material, and the magnetic induction intensity of the magnetic adsorption plate 35 reaches more than 4000 gauss to ensure that sufficient adsorption force can be provided during the fixing process, so that the pressing member 33 uniformly applies pressure to the film to be cut; the pressing member 33 uses a stainless steel bolt body 331 with a diameter of 8 mm, and an aluminum alloy pressing plate 332 with a width of 15 mm is installed on its top. The surface of the pressing plate 332 is covered with a wear-resistant silicone layer to prevent damage to the film to be cut and improve the applicability of the film material at the same time; the diameter of the through hole 32 is designed to be 10 mm to ensure that the bolt body 331 can slide smoothly and automatically embed into the edge of the film material when the magnetic adsorption plate 35 moves downward to achieve precise fixing. The thickness of the magnetic adsorption plate 35 is 5 mm, and it is made of neodymium iron boron material with high magnetic permeability. The surface is treated with anti-oxidation to extend the service life and avoid the decrease of the fixing effect caused by magnetic force attenuation.

[0051] Comparative case: The traditional clamping and fixing method relies on mechanical clamps for pressing. Since the clamping force depends on mechanical locking, stress concentration may occur at the edge of the film material, resulting in deformation or fracture of the film material. In addition, the adjustment process of mechanical clamping is relatively cumbersome. The operator needs to manually adjust the clamping force and replace different sizes of clamps according to the thickness of the film material, resulting in a long material change time and affecting production efficiency. In contrast, this embodiment adopts the magnetic adsorption method, enabling the pressing member 33 to uniformly apply the fixing force and realizing rapid release through the suction control mechanism, avoiding the operation inconvenience caused by mechanical clamping and improving the stability of film material fixing and the convenience of replacement.

[0052] Embodiment 3: Mobile replenishment mechanism based on high-precision lead screw drive

[0053] In this embodiment, the core component of the mobile replenishment mechanism 2 is the lead screw 14. The lead screw 14 uses a high-precision ball screw with a diameter of 20 mm and a pitch of 5 mm. A precision ball guide rail is provided inside the ball screw, which can effectively reduce friction, improve the transmission efficiency, and ensure high-precision positioning during the movement; a copper nut is installed inside the moving seat 25. The nut is made of wear-resistant brass material to reduce wear during long-term use and ensure the rotational stability of the lead screw 14, reducing the transmission error; the servo motor 15 uses a 400W high-precision servo drive system, supports step adjustment at the 0.01 mm level, and can feedback the movement state in real time through the encoder to achieve precise displacement control and improve the accuracy of laser cutting.

[0054] Comparative Case: Due to the elastic properties of the belt material in the traditional belt drive system, jitter may occur during high-speed operation, resulting in a decrease in the positioning accuracy of the mobile platform 21 and affecting the cutting quality. In addition, the belt is prone to wear and slack during long-term use and needs to be replaced and maintained regularly, increasing the maintenance cost of the equipment. In contrast, the ball screw drive system is adopted in this embodiment, avoiding the problem of belt slack and achieving more accurate movement positioning through high-precision servo control to ensure the stability of the cutting process.

[0055] Embodiment 4: Arc Cutting Function Based on Limit Groove Control

[0056] In this embodiment, a sliding bolt 23 is provided at the bottom of the mobile platform 21. The diameter of the sliding bolt 23 is 12 mm and it is made of high-strength stainless steel material to improve wear resistance and stability; the width of the first track groove 16 is 15 mm and a low-friction coating is added to the surface to reduce the sliding resistance and improve the stability of the mobile platform 21; limit grooves 22 are provided on both sides of the mobile platform 21, and the width of the limit grooves 22 is designed to be 16 mm to ensure its precise fit with the convex bolt 26. During ordinary straight cutting, the convex bolt 26 and the sliding bolt 23 are on the same horizontal line, enabling the mobile platform 21 to move stably along the Y-axis direction; when arc cutting is required, the servo motor 15 is controlled to drive the lead screw 14 alone, causing the convex bolt 26 to be misaligned and slide inside the limit groove 22, thereby driving the mobile platform 21 to rotate, thus realizing arc trajectory cutting; the angular scale plate 24 is provided with accuracy marks of 0.5° and is used in conjunction with the scale indication to ensure the accuracy of the rotation angle adjustment and improve the accuracy of complex curve cutting.

[0057] Comparative Case: Traditional arc cutting mainly relies on the combined movement of the X-axis and Y-axis. Due to the high control complexity of the two-axis linkage, it is necessary to accurately calculate the movement trajectories of the two axes, resulting in an increase in the operation difficulty of the cutting process and possible errors during high-speed operation, affecting the final cutting quality. In contrast, in this embodiment, through the limit groove and convex bolt control method, the mobile platform 21 can rotate independently, thus simplifying the control process of arc cutting, improving the cutting accuracy, reducing the computational complexity of the control system, and making the equipment more stable and reliable during operation.

[0058] Embodiment 5: High-Efficiency Film Material Replacement Mechanism Based on Suction Control Mechanism

[0059] In this embodiment, the suction control mechanism 4 adopts a high-precision linkage shaft 42, the linkage shaft 42 has a diameter of 10 mm, and is made of hardened steel to improve torsional strength and wear resistance; two symmetrical swing rods 43 are arranged on the surface of the linkage shaft 42, the swing rods 43 are made of a stainless steel rod with a diameter of 8 mm, and a second track groove 44 is opened at the end, and the length of the second track groove 44 is 30 mm to ensure that the fixing bolt 37 can remain stable when sliding in the track groove; the fixing bolt 37 has a diameter of 6 mm and exceeds the surface of the support plate 31 on the front and rear sides, so that it can slide smoothly and accurately control the magnetic The lifting and lowering of the suction plate 35; when the operator presses down the swing rod 43 through the handle 45 on the front side, the linkage shaft 42 drives the magnetic suction plate 35 to descend evenly, and through the engagement of the ratchet 46 and the meshing wedge-shaped teeth 49, it is ensured that the magnetic suction plate 35 remains stable after descending and will not loosen due to external interference; when the cutting is completed, the operator can toggle the control panel 48 to disengage the meshing wedge-shaped teeth 49 from the ratchet 46. Under the action of the second spring 410, the magnetic suction plate 35 quickly rises, and at the same time drives the pressure piece 33 to move up synchronously, so that a gap is formed between the film material and the support plate 31, which is convenient for quickly removing the finished product and improving the replacement efficiency.

[0060] Comparative case: Traditional suction fixing systems mostly use a single electromagnetic adsorption method. After cutting is completed, the power needs to be manually turned off or the magnetic field strength needs to be reduced to release the film material, resulting in a long release time. In addition, the film material may be stuck due to inaccurate magnetic control, which increases the difficulty of operation. In addition, some mechanical clamping methods require additional unlocking operations when releasing, affecting the production rhythm. In contrast, this embodiment uses a mechanical limit structure and a spring reset mechanism to achieve the rapid release of the magnetic suction plate 35, and uses double swing rod control to ensure the uniformity of the adsorption and release process, thereby improving the convenience of operation and production efficiency.

[0061] Working principle: When in use, the linear motor on the gantry 12 is used to control the laser generator to move horizontally to realize X-axis movement, and then the two servo motors 15 are synchronously controlled to control the mobile platform 21 to be placed at the front side, and then the product to be cut is placed on the upper surface of the support plate 31. Due to the presence of the first springs 39 on both sides, the magnetic suction plate 35 is controlled to be placed at the top of the inner side of the support plate 31, and then the pressing pieces 33 are evenly placed along the edge of the product, so that the bolt body 331 is inserted into the corresponding through hole 32, and the pressing plate 332 can press the edge of the product, and the magnetic block 333 at the bottom will be adsorbed on the surface of the magnetic suction plate 35. At this time, the magnetic suction plate 35 can be controlled to move downward by the suction control mechanism 4, and then the multiple pressing pieces 33 adsorbed on its surface are synchronously controlled to move downward, so that the pressing plate 332 can synchronously press and fix the edge of the product, so as to realize the cutting of multi-shaped products and improve the flexibility of the equipment to fix the product. Then, the movable platform 21 is controlled to move by the lead screw 14 to move the Y axis, thereby realizing multi-directional mobile cutting.

[0062] During the movement, the two lead screws 14 rotate synchronously, which can ensure the smooth movement of the moving platform 21. When arc cutting or complex curved surface cutting is required, the moving efficiency of the X-axis and Y-axis is relatively low through synchronous control. At this time, the lead screw 14 can be controlled separately to make the moving platform 21 rotate. The rotation of the lead screw 14 can control the movement of the moving seat 25 on its surface. The sliding bolt 23 at the bottom of the moving platform 21 is limited by the first track groove 16 and can only move back and forth. When the two bolts 26 and the sliding bolt 23 are on the same horizontal line, the moving platform 21 moves horizontally. When the two bolts 26 are misaligned, the bolt 26 can slide inside the limit groove 22 to push the moving platform 21 to rotate, so as to realize arc cutting and compensate for the moving efficiency during arc cutting. The cooperation of the scale indicator 27 and the angle scale plate 24 can effectively observe the rotation angle of the moving platform 21, which is convenient for debugging and observation.

[0063] The suction control mechanism 4 can control the downward movement of the magnetic attraction plate 35. In the initial state, the magnetic attraction plate 35 is placed at the uppermost position. At this time, the cooperation of the fixing bolt 37 and the second track groove 44 can drive the swing rod 43 to the maximum angle. During operation, the swing rod 43 is controlled to rotate downward through the front handle 45, and then the magnetic attraction plate 35 can be driven to move downward. The linkage shaft 42 can effectively connect the front and rear swing rods 43, so that the two swing rods 43 are synchronously controlled to ensure the uniformity of the force when the magnetic attraction plate 35 descends. When the magnetic attraction plate 35 descends, the rotation of the linkage shaft 42 will drive the ratchet 46 at its end to rotate. The second spring 410 can make the meshing wedge teeth 49 always remain meshed with the ratchet 46, and the meshing direction should ensure that the swing rod 43 can rotate freely downward and cannot rotate in the reverse direction, so as to maintain the stability of the magnetic attraction plate 35 after moving downward. After a single cutting is completed, the control plate 48 is toggled to make the meshing wedge teeth 49 disengage from the ratchet 46. At this time, the linkage shaft 42 can rotate at any angle to push the magnetic attraction plate 35 upward by the first springs 39 on both sides, so that the pressing part 33 moves upward, so that a gap is formed between the pressing plate 332 and the upper surface of the support plate 31, which is convenient for taking out the product. At the same time, the pressing part 33 can be pulled out upward.

[0064] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sliding positioning platform for a laser film opening device, comprising a laser film cutting machine body (1), characterized in that: The laser film cutting machine body (1) includes a workbench (11). Vertical plates (13) are arranged on the front and rear upper surfaces of the workbench (11). A lead screw (14) is symmetrically and rotatably installed between the two vertical plates (13). A moving and replenishing mechanism (2) is installed on the upper surface of the workbench (11). The moving and replenishing mechanism (2) includes a moving platform (21) and a moving seat (25) screwed on the surface of the lead screw (14). A magnetic adsorption mechanism (3) is installed on the top of the moving platform (21). The magnetic adsorption mechanism (3) is used to adsorb and fix the film to be cut. The magnetic adsorption mechanism (3) includes a support plate (31) and a pressing member (33) fixed on the upper surface of the moving platform (21). Through holes (32) are evenly formed on the surface of the support plate (31). The pressing member (33) is installed inside the through hole (32). The pressing member (33) is used to fix the film to be cut. A magnetic suction plate (35) is slidably installed inside the support plate (31). A suction force control mechanism (4) is further arranged on the upper surface of the moving platform (21). The suction force control mechanism (4) is used to control the magnetic suction plate (35). The support plate (31) has an inverted U-shaped structure. The magnetic suction plate (35) slides up and down inside the support plate (31). The pressing member (33) includes a bolt body (331) sliding inside the through hole (32). A pressing plate (332) is arranged at the top of the bolt body (331). The pressing plate (332) is placed above the support plate (31) to press and fix the film to be cut. A magnetic block (333) is embedded at the bottom of the bolt body (331). The magnetic block (333) is mutually adsorbed with the magnetic suction plate (35). Chute grooves (34) are symmetrically and vertically formed on both sides of the support plate (31). Columns (38) are symmetrically arranged on both sides of the upper surface of the moving platform (21). The columns (38) are placed on both sides of the support plate (31). The positions of the columns (38) correspond to those of the chute grooves (34). Protrusions (36) are symmetrically arranged on both sides of the magnetic suction plate (35). The protrusions (36) penetrate through the chute grooves (34) and slide on the columns (38). A first spring (39) is sleeved below the surface of the columns (38). The top of the first spring (39) is in contact with the lower surface of the protrusion (36). Fixing bolts (37) are symmetrically welded at the front and rear centers of the magnetic suction plate (35). The fixing bolts (37) extend beyond the front and rear surfaces of the support plate (31). The suction force control mechanism (4) includes fixing plates (41) symmetrically fixed on one side of the upper surface of the moving platform (21). A linkage shaft (42) is rotatably installed between the two fixing plates (41). The linkage shaft (42) is placed below the magnetic suction plate (35). Swing rods (43) are symmetrically arranged on the surface of the linkage shaft (42). The swing rods (43) are perpendicular to the axis of the linkage shaft (42). Second track grooves (44) are formed at the ends of the swing rods (43). The fixing bolts (37) are placed inside the second track grooves (44).

2. The sliding positioning platform for a laser film opening device according to claim 1, wherein: A first track groove (16) is provided at the center of the surface of the workbench (11), a sliding bolt (23) is provided at the center of the bottom of the movable platform (21), and the sliding bolt (23) is placed inside the first track groove (16). Limiting grooves (22) are provided on both sides of the lower surface of the movable platform (21), and a convex bolt (26) is provided on the top of the movable seat (25), and the convex bolt (26) is inside the limiting groove (22).

3. The sliding positioning platform for a laser film opening device according to claim 1, characterized in that: A gantry (12) is disposed across the top of the workbench (11); a servo motor (15) is symmetrically arranged on the rear side of the laser film cutting machine body (1); the end of the lead screw (14) is mounted on the output end of the servo motor (15); an angle scale plate (24) is fixed to one side of the movable platform (21); a scale indicator (27) is vertically fixed to the outer side of one of the movable seats (25); the scale indicator (27) corresponds to the angle scale plate (24).

4. The sliding positioning platform for a laser film opening device according to claim 1, wherein: A handle (45) is provided at the end of the swing rod (43) at the front side, the linkage shaft (42) passes through the front fixing plate (41), and a ratchet wheel (46) is installed at the front end of the linkage shaft (42).

5. A sliding positioning platform for a laser film opening device according to claim 1, characterized in that: A mounting groove (401) is transversely formed on the surface of the front fixing plate (41), a moving block (47) is slidably mounted inside the mounting groove (401), one end of the moving block (47) is provided with a meshing wedge-shaped tooth (49), and the meshing wedge-shaped tooth (49) meshes with the ratchet (46).

6. The sliding positioning platform for a laser film opening device according to claim 5, characterized in that: A control plate (48) is provided at one end of the front side surface of the moving block (47) facing away from the meshing wedge-shaped teeth (49), and a second spring (410) is placed inside the installation groove (401), with one end of the second spring (410) in contact with the moving block (47).

Images