Plate pressing device for laser cutting

Abstract

The invention provides a plate pressing device for laser cutting, which comprises a base frame, a plurality of tooth-shaped plates are arranged in the base frame, plates are placed on the tooth-shaped plates, a cutting head is arranged on the base frame, the cutting head is used for cutting the plates, the periphery of the cutting head is sleeved with a plate pressing assembly, and the plate pressing assembly is fixedly mounted on the base frame. The pressing connection part of the pressing plate assembly can be connected to the cutting path of the cutting head for cutting the plate in a pressing mode, and the pressing connection part connected to the cutting path in a pressing mode can prevent the plate from turning over and touching the cutting head. According to the pressing plate device for laser cutting, the periphery of the cutting head is sleeved with the pressing plate assembly, the pressing connection part of the pressing plate assembly is directly connected to the cutting path of a plate in a pressed mode, the situation that cutting operation is stopped due to the fact that the plate turns over and touches the cutting head during cutting is prevented, and the cutting head is protected against damage.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting equipment, and in particular relates to a pressure plate device for laser cutting. Background Technology

[0002] Laser cutting technology is a highly representative high-precision and high-efficiency processing method in the field of modern materials processing. With its core advantages such as high cutting accuracy, fast cutting speed, small heat-affected zone, and strong adaptability, it has been widely used in the cutting and processing of metallic and non-metallic materials, covering multiple industrial fields such as aerospace, automobile manufacturing, electronic equipment, and hardware processing.

[0003] Laser cutting technology typically involves placing a sheet metal onto a toothed plate and then cutting it into multiple workpieces of the same size and shape using a laser cutter. During the cutting process, because there are gaps between the toothed plates, if the edges of the workpieces are not supported by the toothed plates, the workpieces are prone to warping and flipping, causing them to touch the laser cutter. This not only terminates the cutting process and reduces work efficiency, but also easily damages the laser cutter. Summary of the Invention

[0004] In view of this, the present invention aims to provide a pressure plate device for laser cutting, so as to solve the problem in traditional laser cutting technology that the cutting operation is terminated due to the workpiece flipping and touching the laser cutter, which prolongs the project time and easily damages the laser cutter.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A pressure plate device for laser cutting includes a base frame, a plurality of toothed plates are arranged inside the base frame, a plate is placed on the toothed plates, a cutting head is arranged on the base frame, the cutting head is used to cut the plate, a pressure plate assembly is sleeved around the cutting head, and the pressure plate assembly is fixedly installed on the base frame, the pressing part of the pressure plate assembly can press against the cutting path of the cutting head cutting the plate, and the pressing part pressed against the cutting path can prevent the plate from flipping and touching the cutting head.

[0007] Furthermore, the pressure plate assembly includes a telescopic rod, a slide module, and a pressure plate unit. The upper end of the pressure plate unit is provided with a slide module, which is mounted on the base frame via the telescopic rod. The pressure plate unit can move relative to the telescopic rod via the slide module, and the telescopic rod can drive the slide module and the pressure plate unit to move vertically.

[0008] Furthermore, the slide module includes a first slide structure and a second slide structure, which are arranged perpendicularly to each other. The first slide structure is located on the upper end of the pressure plate unit, and the second slide structure is slidably arranged on the first slide structure. A telescopic rod is provided at the upper end of the second slide structure. The first slide structure includes a first slide rod, and there are two first slide rods. The two first slide rods are located on both sides of the cutting head, and each first slide rod is fixedly installed on the upper end of the pressure plate unit through a first mounting seat. A first slider is slidably arranged on each first slide rod, and the two ends of each first slider are elastically connected to the corresponding first mounting seat through a first spring. The first spring is used to limit the relative position of the first slider on the first slide rod.

[0009] Furthermore, the second slide structure includes a second slide rod, a second slider, and a second spring. There are two second slide rods located on both sides of the cutting head, and the two ends of each second slide rod are fixedly connected to one side of a first slider. There are also two second sliders located on both sides of the cutting head, and the two ends of each second slider are slidably connected to the periphery of a second slide rod. A telescopic rod is provided at the upper end of each second slider, and two second springs are sleeved on the periphery of each second slide rod. The two ends of each second spring are fixedly connected to one side of the corresponding second slider and the first slider.

[0010] Furthermore, the pressure plate unit includes a mounting frame, a toggle structure, and a pressure plate structure. The mounting frame has an orifice-shaped structure, and a slide module is provided at the upper end of the mounting frame. The inner ring of the mounting frame is provided with multiple first slide grooves, and adjacent two first slide grooves are arranged in a stepped staggered manner. A toggle structure is slidably arranged in each first slide groove. Multiple second slide grooves are evenly arranged circumferentially at the lower end of the mounting frame, and a pressure plate structure is slidably arranged in each second slide groove. The lower end of the pressure plate structure can press against the cutting path. The inner rings at both ends of each toggle structure are respectively fitted around the periphery of a pressure plate structure, and the toggle structure is used to adjust the relative position of the pressure plate structure in the second slide groove. An arc-shaped plate is provided on one side of the outer wall of each second slide groove, and the inner ring of the arc-shaped plate can abut against one side of the corresponding pressure plate structure.

[0011] Furthermore, the actuating structure includes a sliding plate and a toggle mechanism. The sliding plate is slidably disposed in the first groove. A pusher is disposed at each end of the sliding plate. The inner ring of each pusher is fitted around the periphery of a pressure plate structure, and the inner walls on both sides of the pusher can abut against the periphery of the pressure plate structure. A first mounting groove is disposed in the middle of the sliding plate. The toggle mechanism is disposed in the first mounting groove, and the periphery of the cutting head can abut against the periphery of the toggle mechanism.

[0012] Furthermore, the lever mechanism includes an abutment plate and a rotating shaft. The abutment plate has a first through hole, and the rotating shaft is rotatably mounted inside the first through hole. Two first protrusions are arranged opposite each other on the outer periphery of the rotating shaft. Two first grooves are arranged opposite each other on the inner ring of the first through hole, and the outer peripheries of the two first protrusions can be located within the inner rings of the corresponding first grooves. A second mounting groove is provided on one side of the inner wall of the first mounting groove, and the lower end of the rotating shaft is elastically connected to the bottom of the second mounting groove by a third spring. A second through hole is provided on the other side of the inner wall of the first mounting groove, and the upper end of the rotating shaft passes through the second through hole and is located above the slide plate. A torsion spring is sleeved on the outer periphery of the rotating shaft, and the two ends of the torsion spring are respectively fixedly connected to one side of the abutment plate and one side of the first mounting groove.

[0013] Furthermore, the lever mechanism also includes wedge blocks, and there are multiple wedge blocks. One wedge block is set on each side of each rotating shaft, and each wedge block is fixedly installed in the mounting frame. The upper end of each rotating shaft can abut against the inclined surface of the corresponding wedge block.

[0014] Furthermore, the pressure plate structure includes a support leg, a second mounting base, and an electromagnet. The upper outer periphery of the support leg is slidably connected to a second sliding groove, and the lower end of the support leg is slidably provided with the second mounting base. The lower end of the second mounting base is provided with a third mounting groove, and the electromagnet is provided in the third mounting groove. The electromagnet is elastically connected to the bottom of the third mounting groove by a fourth spring, and the lower end of the electromagnet can press against the cutting path. The lower end of the support leg is provided with a third sliding groove, and the upper end of the second mounting base is provided with a third slider. The outer periphery of the third slider is slidably connected to the inner ring of the third sliding groove. A fifth spring is provided on one side of the support leg, and one end of the fifth spring is fixedly connected to one side of the second mounting base. The fifth spring is used to limit the relative position of the support leg and the second mounting base.

[0015] Furthermore, the pressure plate structure also includes a touch switch, which is disposed on one side of the second mounting base. The touch switch is electrically connected to an electromagnet, and the actuating end of the touch switch can abut against the inner ring of the arc plate.

[0016] Compared with the prior art, the laser cutting pressure plate device of the present invention has the following advantages:

[0017] (1) The laser cutting pressure plate device of the present invention provides a pressure plate assembly that is sleeved around the cutting head. The pressing part of the assembly is directly pressed onto the cutting path of the plate, which prevents the plate from flipping and touching the cutting head during cutting, thus causing the cutting operation to terminate, and protects the cutting head from damage.

[0018] (2) The laser cutting pressure plate device of the present invention, by setting a toggle structure, when the cutting head abuts against the toggle plate mechanism, the cutting head continuously moves along the set cutting path, so that the toggle structure drives the pressure plate structure sleeved at both ends to slide along the corresponding second slide groove, so that the pressure plate structure located in front of the cutting path of the cutting head moves away from the cutting path and avoids the cutting head, and the pressure plate structure located behind the cutting path of the cutting head approaches the cutting path and presses against it, so as to prevent the cut plate from flipping and touching the cutting head.

[0019] (3) The laser cutting pressure plate device of the present invention, by setting a slide module, enables the laser head to move relative to the pressure plate unit during the laser head cutting process, and the pressure plate unit always presses the cutting path during the cutting process. The first spring and the second spring set on the slide module can make the center position of the cutting head coincide with the center position of the pressure plate unit in a natural state, which facilitates precise pressing of the cutting path. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a pressure plate device for laser cutting according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the assembly of the base frame and the toothed plate according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A magnified view of part A in the image;

[0024] Figure 4 This is a schematic diagram of the pressure plate assembly according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the slide module according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the pressure plate unit according to an embodiment of the present invention;

[0027] Figure 7 This is a partial cross-sectional structural diagram of the pressure plate unit described in an embodiment of the present invention;

[0028] Figure 8 This is a partial cross-sectional structural diagram of the assembly of the mounting bracket and the toggle structure according to an embodiment of the present invention;

[0029] Figure 9This is an exploded structural diagram of the toggle structure removing the wedge block according to an embodiment of the present invention;

[0030] Figure 10 for Figure 9 A magnified view of part B in the image;

[0031] Figure 11 This is a schematic diagram of the paddle mechanism described in an embodiment of the present invention;

[0032] Figure 12 This is a cross-sectional structural diagram of the lever mechanism described in an embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the pressure plate structure described in an embodiment of the present invention;

[0034] Figure 14 This is a schematic diagram of the support leg structure according to an embodiment of the present invention;

[0035] Figure 15 This is a partial cross-sectional structural diagram of the assembly of the second mounting base and the electromagnet according to an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Base frame; 11-First frame; 12-First displacement module; 13-Second frame; 14-Second displacement module; 15-Mounting plate; 16-Cylinder; 2-Toothed plate; 3-Sheet metal; 4-Cutting head; 5-Pressure plate assembly; 51-Telescopic rod; 52-Slide module; 521-First slide structure; 5211-First slide rod; 5212-First mounting base; 5213-First slider; 5214-First spring; 522-Second slide structure; 5221-Second slide rod; 5222-Second slider; 5223-Second spring; 53-Pressure plate unit; 531-Mounting frame; 5311-First slide groove; 5312-Second slide groove; 532-Toggle structure; 5321-Slide plate; 5 322-Pulley mechanism; 53221-Abutting plate; 53222-Rotating shaft; 53223-First through hole; 53224-First protrusion; 53225-First groove; 53226-Third spring; 53227-Torsion spring; 53228-Wedge block; 5323-Push frame; 5324-First mounting groove; 53241-Second mounting groove; 53242-Second through hole; 533-Pressure plate structure; 5331-Support leg; 53311-Third slide groove; 5332-Second mounting base; 53321-Third slider; 5333-Electromagnet; 5334-Third mounting groove; 5335-Fourth spring; 5336-Touch switch; 5337-Fifth spring; 534-Arc plate. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] like Figure 1 As shown, a pressure plate device for laser cutting includes a base frame 1, a plurality of toothed plates 2 are arranged inside the base frame 1, a plate 3 is placed on the toothed plates 2, and a cutting head 4 is arranged on the base frame 1. The cutting head 4 is used to cut the plate 3. The plate 3 is any one of carbon steel plate, iron plate or magnetic stainless steel plate. A pressure plate assembly 5 is sleeved around the cutting head 4 and the pressure plate assembly 5 is fixedly installed on the base frame 1. The pressing part of the pressure plate assembly 5 can press against the cutting path of the cutting head 4 cutting the plate 3. The pressing part pressing against the cutting path can prevent the plate 3 from flipping and touching the cutting head 4.

[0043] By sleeved with a pressure plate assembly 5 around the cutting head 4, and with the pressure plate assembly 5 fixedly connected to the base frame 1, its pressing part directly presses against the cutting path of the cutting head 4 on the plate 3, preventing the plate 3 from flipping and touching the cutting head 4 after cutting, thus protecting the cutting head 4 from damage and improving the safety of laser cutting operations. The cutting head 4 is existing technology, such as the laser cutting assembly in patent CN121467971A, or other existing devices that meet the requirements of this application. The operator can configure it themselves. The toothed plate 2 is existing technology, such as the support bar in patent CN121491745A, or other existing devices that meet the requirements of this application. The operator can configure it themselves.

[0044] like Figure 2-3 As shown, the base frame 1 includes a first frame 11, a toothed plate 2 is provided inside the first frame 11, a first displacement module 12 is provided at the upper end of the first frame 11, a second frame 13 is provided at the execution end of the first displacement module 12, the first displacement module 12 can drive the second frame 13 to linear displacement, a second displacement module 14 is provided on the second frame 13, a mounting plate 15 is provided at the execution end of the second displacement module 14, the mounting plate 15 is a U-shaped structure, and a cylinder 16 is provided in the inner ring of the U-shaped structure. The cylinder 16 is connected to the controller by signal, and a cutting head 4 is fixedly installed at the movable end of the cylinder 16. One side of the telescopic rod 51 is fixedly connected to the outer wall of the U-shaped structure.

[0045] The first displacement module 12 and the second displacement module 14 on the base frame 1 drive the cutting head 4 to move flexibly through the preset path of the controller. The height of the cutting head 4 is adjusted in conjunction with the cylinder 15. The telescopic rod 51 of the pressure plate assembly 5 is fixed to the outer wall of the U-shaped mounting plate. When no cutting operation is performed, the pressure plate assembly 5 and the cutting head 4 achieve synchronous displacement. When the cutting operation is performed, the pressure plate assembly 5 and the cutting head 4 can move vertically through the cylinder 16 and the telescopic rod 51, respectively. The first displacement module 12 and the second displacement module 14 are both existing technologies, such as the displacement module in the patent with publication number CN121373768A. Other devices in the prior art can also be selected to meet the requirements of this application. The staff can configure them themselves. The cylinder 16 is a prior art, model DFM-25-50-PA-GF. The controller is a PLC controller in the prior art.

[0046] like Figure 4 As shown, the pressure plate assembly 5 includes a telescopic rod 51, a slide module 52, and a pressure plate unit 53. The slide module 52 is provided at the upper end of the pressure plate unit 53. The slide module 52 is mounted on the base frame 1 through the telescopic rod 51, and the telescopic rod 51 is connected to the controller. The pressure plate unit 53 can move relative to the telescopic rod 51 through the slide module 52, and the telescopic rod 51 can drive the slide module 52 and the pressure plate unit 53 to move vertically.

[0047] The telescopic rod 51 drives the slide module 52 and the pressure plate unit 53 to move vertically. When performing a cutting operation, the telescopic rod 51 extends, causing the slide module 52 and the pressure plate unit 53 to move downwards, so that the lower end of the pressure plate unit 53 can abut against the cutting path of the plate 3, preventing the cut plate from flipping and touching the cutting head 4. When not performing a cutting operation, the telescopic rod 51 rises, and the pressure plate unit 53 does not abut against the plate 3. At this time, the first displacement module 12 and the second displacement module 14 make the pressure plate assembly 5 and the cutting head 4 move synchronously, and the slide module 52 can realize the relative movement between the pressure plate unit 53 and the telescopic rod 51. During operation, because the pressure plate unit 53 abuts against the cutting path, and the cutting head 4 needs to perform dynamic cutting along the preset cutting path, the sliding table module 52 can ensure that the pressure plate unit 53 is always pressed against the cutting path, and the cutting head 4 can move along the cutting path under the action of the first displacement module 12 and the second displacement module 14, ensuring that the pressure plate always acts on the cutting path and preventing the cut plate from flipping. The telescopic rod 51 is an electric telescopic rod in the prior art, and the parameters meet the following requirements: thrust range: 500-2000N; stroke range: 50-600mm; rated voltage: 12 / 24VDC; positioning accuracy: ±0.2-0.5mm.

[0048] like Figure 5 As shown, the slide module 52 includes a first slide structure 521 and a second slide structure 522. The first slide structure 521 and the second slide structure 522 are arranged perpendicularly to each other. The first slide structure 521 is disposed on the upper end of the pressure plate unit 53. The second slide structure 522 is slidably disposed on the first slide structure 521. A telescopic rod 51 is disposed on the upper end of the second slide structure 522. The first slide structure 521 includes a first slide rod 5211. There are two first slide rods 5211, which are located on both sides of the cutting head 4. Each first slide rod 5211 is fixedly mounted on the upper end of the pressure plate unit 53 through a first mounting seat 5212. A first slider 5213 is slidably disposed on each first slide rod 5211. The two ends of each first slider 5213 are elastically connected to the corresponding first mounting seat 5212 through a first spring 5214. The first spring 5214 is used to limit the relative position of the first slider 5213 on the first slide rod 5211.

[0049] The first slide structure 5211 of the slide module 52 adopts two first slide rods 5211, which are symmetrically arranged on both sides of the cutting head 4. They are fixed to the upper end of the pressure plate unit 53 by the first mounting base 5212. The first slider 5213 is slidably sleeved on the first slide rod 5211 and elastically limited by the first springs 5214 at both ends, realizing flexible buffering and automatic reset of the lateral movement of the pressure plate unit 53. When the pressure plate unit 53 abuts against the plate 3, the cutting head 4 moves with the first displacement module 12. The relative movement between the cutting head 4 and the pressure plate unit 53 is realized by the action of the first slide structure 5211. When the pressure plate unit 53 releases the pressure on the plate 3, the first springs 5214 at both ends of the first slider 5213 reset the first slider 5213 to the middle position of the first slide rod 5211, realizing automatic reset, so that the center position of the cutting head 4 in the natural state coincides with the center position of the pressure plate unit 53.

[0050] The second slide structure 522 includes a second slide rod 5221, a second slider 5222, and a second spring 5223. There are two second slide rods 5221, located on both sides of the cutting head 4, and the two ends of each second slide rod 5221 are respectively fixedly connected to one side of a first slider 5213. There are two second sliders 5222, located on both sides of the cutting head 4, and the two ends of each second slider 5222 are respectively slidably connected to the periphery of a second slide rod 5221. A telescopic rod 51 is provided at the upper end of each second slider 5222, and two second springs 5223 are respectively sleeved on the periphery of each second slide rod 5221, and the two ends of each second spring 5223 are respectively fixedly connected to one side of the corresponding second slider 5222 and the first slider 5213.

[0051] The second slide structure 522 employs two second slide rods 5221, both ends of which are fixed to one side of the first slide block 5213 and symmetrically distributed on both sides of the cutting head 4. The second slide block 5222 is slidably sleeved on the second slide rod 5221, and a second spring 5223 is sleeved around the second slide rod 5222 to achieve elastic limiting. It is perpendicular to the first slide structure 521. When the pressure plate unit 53 abuts against the plate 3, the cutting head 4 can follow the linear displacement of the second displacement module 14. When the pressure plate unit 53 releases the pressure on the plate 3, the second springs 5223 at both ends of the second slide block 5222 reset the second slide block 5222. The cutting head 4 is positioned at the middle of the second slide bar 5221, which is located between the two first slide bars 5213. In the initial state, the center point of the cutting head 4 coincides with the center point of the pressure plate unit 53. By setting the first slide structure 521 and the second slide structure 522, the cutting head 4 can move in multiple directions relative to the pressure plate unit 3. By coinciding the center points of the cutting head 4 and the pressure plate unit 53, when the cutting head 4 is located at the center of the preset cutting path, the telescopic rod 51 extends, causing the lower end of the pressure plate unit 53 to press against the cutting path, preventing the plate 3 from flipping and touching the cutting head 4 after cutting.

[0052] like Figure 6-7 As shown, the pressure plate unit 53 includes a mounting frame 531, a toggle structure 532, and a pressure plate structure 533. The mounting frame 531 has an U-shaped structure. A slide module 52 is provided on the upper end of the mounting frame 531. The inner ring of the mounting frame 531 is provided with multiple first slide grooves 5311. Adjacent first slide grooves 5311 are arranged in a stepped staggered manner. A toggle structure 532 is slidably arranged in each first slide groove 5311. Multiple second slide grooves 5312 are evenly arranged circumferentially on the lower end of the mounting frame 531. Each second slide groove 5312... A pressure plate structure 533 is slidably disposed within 312. The lower end of the pressure plate structure 533 can press against the cutting path. The inner rings of both ends of each actuating structure 532 are respectively fitted around the periphery of a pressure plate structure 533. The actuating structure 532 is used to adjust the relative position of the pressure plate structure 533 within the second slide groove 5312. An arc-shaped plate 534 is disposed on one side of the outer wall of each second slide groove 5312. The inner ring of the arc-shaped plate 534 can abut against one side of the corresponding pressure plate structure 533.

[0053] The mounting frame 531 of the pressure plate unit 53 adopts a mouth-shaped structure. Each inner side wall of the inner circle of the mouth-shaped structure is provided with a first sliding groove 5311. Adjacent first sliding grooves 5311 are arranged in a stepped staggered manner, and opposite first sliding grooves 5311 are parallel to each other. The two ends of the actuating structure 532 installed in any first sliding groove 5311 are respectively arranged to cross with one end of the two adjacent actuating structures 532. The pressure plate structure 533 installed in the second sliding groove 5312, which is evenly distributed circumferentially at the lower end of the mounting frame 531, is located on the inner circle of one end of the two adjacent actuating structures 532. Adjusting any actuating structure 532 can make the pressure plate structure 533 slide in the second sliding groove 5312, so as to realize the pressure plate structure 533 pressing or avoiding the cutting path, preventing the cutting head 4 from cutting on the pressure plate structure 533, reducing safety hazards, and improving the service life of the device.

[0054] like Figure 8-9 As shown, the actuating structure 532 includes a sliding plate 5321 and a toggle mechanism 5322. The sliding plate 5321 is slidably disposed in the first slide groove 5311. A pusher 5323 is provided at each end of the sliding plate 5321. The inner ring of each pusher 5323 is fitted around the periphery of a pressure plate structure 533, and the inner walls on both sides of the pusher 5323 can abut against the periphery of the pressure plate structure 533. A first mounting groove 5324 is provided in the middle of the sliding plate 5321. The toggle mechanism 5322 is disposed in the first mounting groove 5324, and the periphery of the cutting head 4 can abut against the periphery of the toggle mechanism 5322.

[0055] The sliding plate 5321 of the actuating structure 532 is slidably disposed in the first slide groove 5311, and the push brackets 5323 at both ends are sleeved on the periphery of the pressure plate structure 533. The actuating plate mechanism 5322 in the first mounting groove 5324 in the middle can directly abut against the periphery of the cutting head 4, realizing the automatic linkage adjustment of the pressure plate structure 533 and the cutting head 4 without power. When the periphery of the cutting head 4 abuts against the periphery of the actuating mechanism 5322, the actuating mechanism 5322 pushes or pulls the pressure plate units 533 of its inner ring at both ends to slide along the corresponding second slide groove 5312, realizing the pressing or avoidance of the cutting path by the pressure plate units 533. No additional driving components are required, reducing equipment costs and improving the adaptation efficiency of pressure plate adjustment.

[0056] When the cutting head 4 abuts against the actuating structure 5322, the pressure plate unit 533 in the direction of movement of the cutting head 4 is pushed by the corresponding actuating structure 5322 and moves away from the cutting path along the second slide groove 5312, releasing the pressure on the cutting path and enabling the cutting head 4 to perform dynamic cutting operations along the cutting path. At the same time, the pressure plate unit 533 in the opposite direction of movement of the cutting head 4 is pulled by the corresponding actuating structure 5322, causing it to move closer to the cutting path along the second slide groove 5312, pressing the cutting path and preventing the cut plate from flipping and touching the cutting head 4.

[0057] The lever mechanism 5322 also includes wedge blocks 53228. There are multiple wedge blocks 53228. One wedge block 53228 is provided on each side of each rotating shaft 53222. Each wedge block 53228 is fixedly installed in the mounting bracket 531. The upper end of each rotating shaft 53222 can abut against the inclined surface of the corresponding wedge block 53228.

[0058] The lever mechanism 5322 is equipped with multiple wedge blocks 53228, one on each side of each rotating shaft 53222 and fixed in the mounting bracket 531. The upper end of the rotating shaft 53222 can abut against the inclined surface of the wedge block 53228. When the upper end of the rotating shaft 53222 abuts against the inclined surface of the wedge block 53228, the rotating shaft 53222 compresses the third spring 53226, causing the first protrusions 53224 on both sides of the rotating shaft 53222 to disengage from the restriction of the first groove 53225. At this time, the abutment plate 53221 can rotate relative to the rotating shaft 53222, and the outer periphery of the abutment plate 53221 can rotate into the first mounting groove 5324, so that the cutting head 4 can continue to perform cutting operations and increase the continuity of the device.

[0059] like Figure 9-10 As shown, the lever mechanism 5322 includes an abutment plate 53221 and a rotating shaft 53222. The abutment plate 53221 has a first through hole 53223. The rotating shaft 53222 is rotatably mounted inside the first through hole 53223. Two first protrusions 53224 are arranged opposite each other on the outer periphery of the rotating shaft 53222. Two first grooves 53225 are arranged opposite each other on the inner ring of the first through hole 53223, and the outer peripheries of the two first protrusions 53224 can be located within the inner ring of the corresponding first grooves 53225. One side of the inner wall of the first mounting groove 5324 is provided with... There is a second mounting groove 53241, and the lower end of the rotating shaft 53222 is elastically connected to the bottom of the second mounting groove 53241 through a third spring 53226. The inner wall of the other side of the first mounting groove 5324 is provided with a second through hole 53242. The upper end of the rotating shaft 53222 passes through the second through hole 53242 and is located above the slide plate 5321. A torsion spring 53227 is sleeved around the rotating shaft 53222, and the two ends of the torsion spring 53227 are respectively fixedly connected to one side of the abutment plate 53221 and one side of the first mounting groove 5324.

[0060] The abutment plate 53221 of the lever mechanism 5322 is rotatably mounted on the first mounting groove 5324 via the rotating shaft 53222. The first protrusion 53224 on the periphery of the rotating shaft 53222 is positioned in conjunction with the first groove 53225 on the inner ring of the first through hole 53223. The lower end is elastically connected to the second mounting groove 53241 via the third spring 53226. The outer torsion spring 53227 achieves automatic reset. The upper end of the rotating shaft 53222 passes through the second through hole 53242. The overall structure realizes the elastic lifting and precise automatic reset of the lever mechanism 5322, avoids jamming during linkage, and ensures the continuity and reliability of the adjustment of the pressure plate structure 533.

[0061] like Figure 11-12 As shown, the pressure plate structure 533 includes a support leg 5331, a second mounting base 5332, and an electromagnet 5333. The upper outer periphery of the support leg 5331 is slidably connected to the second sliding groove 5312, and the lower end of the support leg 5331 is slidably disposed on the second mounting base 5332. The lower end of the second mounting base 5332 is provided with a third mounting groove 5334, and the electromagnet 5333 is disposed in the third mounting groove 5334. The electromagnet 5333 is elastically connected to the bottom of the third mounting groove 5334 by a fourth spring 5335. The lower end can be pressed onto the cutting path; the lower end of the support leg 5331 is provided with a third sliding groove 53311, the upper end of the second mounting base 5332 is provided with a third slider 53321, and the outer periphery of the third slider 53321 is slidably connected to the inner ring of the third sliding groove 53311. A fifth spring 5337 is provided on one side of the support leg 5331, and one end of the fifth spring 5337 is fixedly connected to one side of the second mounting base 5332. The fifth spring 5337 is used to limit the relative position of the support leg 5331 and the second mounting base 5332.

[0062] The upper end of the support leg 5331 of the pressure plate structure 533 is slidably connected to the second slide groove 5312 and is located in the inner ring of one end of the two adjacent lever mechanisms 5322. The lower end is slidably engaged with the third slide groove 53311 of the second mounting base 5332 through the third slider 53321. The fifth spring 5337 provides elastic limit for both. The electromagnet 5333 in the third mounting groove 5334 at the lower end of the second mounting base 5332 is elastically installed through the fourth spring 5335. Its lower end can be pressed against the cutting path to achieve flexible and strong pressing of the plate 3, which not only ensures firm pressing and prevents the plate from warping, but also avoids damage to the surface of the plate. When the telescopic rod 51 drives the pressure plate unit 53 to press against the cutting path, the electromagnet 5333 is not energized. Without contacting the surface of the plate 3, the toggle mechanism 5322 can easily adjust the relative position of the pressure plate structure 533 within the second slide groove 5312. When the electromagnet 5333 is powered on, it stretches the fourth spring 5335, causing it to adhere to the plate 3 and press the cutting path. By providing a second mounting base 5332 that is slidably connected to the lower end of the support leg 5331, when the electromagnet 5333 is adhered to the plate 3, the support leg 5331 can slide relative to the second mounting base 5332 when the toggle mechanism 532 adjusts the pressure plate structure 533. When the electromagnet 5333 is de-energized, the fifth spring 5337 assists the second mounting base 5332 in automatically resetting, facilitating the next pressing of the cutting path.

[0063] like Figure 13-15 As shown, the pressure plate structure 533 also includes a touch switch 5336, which is disposed on one side of the second mounting base 5332. The touch switch 5336 is signal-connected to the controller and electrical-connected to the electromagnet 5333. The actuating end of the touch switch can abut against the inner ring of the arc plate 534.

[0064] The pressure plate structure 533 is equipped with a touch switch 5336, located on one side of the second mounting base 5332, which is electrically connected to the electromagnet 5333. Its actuator can abut against the inner ring of the arc-shaped plate 534, achieving automated control that starts upon proper pressing. This improves the automation level and operational safety of the equipment, and also avoids ineffective energization of the electromagnet 5333, saving energy. When the electromagnet 5333 is energized, it stretches the fourth spring 5335, causing the electromagnet 5333 to press against the cutting path, pressing the plate material and preventing it from warping, flipping, and touching the cutting head 4. After the iron 5333 is de-energized, the fourth spring 5335 drives the electromagnet 5333 to reset, so as to avoid the cutting path of the cutting head 4. The pressure plate structure 533 is adjusted by the toggle structure 532. When the support leg 5331 disengages from the inner ring of the arc plate 534, the touch switch 5336 resets and the electromagnet 5333 is de-energized. When the support leg 5331 abuts against the inner ring of the arc plate 534, the touch switch 5336 is turned on, the electromagnet 5333 is energized and pressed on the cutting path. The touch switch 5336 is existing technology and its model is B3S-1000.

[0065] The working process of a pressure plate device for laser cutting:

[0066] Initial positioning: The base frame 1 controls the first displacement module 12 and the second displacement module 14 through the controller to drive the cutting head 4 to move to the cutting area of ​​the plate 3 on the toothed plate 2, and the cutting head 4 is located at the center of the cutting area. The pressure plate assembly 5, which moves synchronously with the cutting head 4, moves synchronously. Multiple pressure plate structures 533 are all located above the cutting path. The telescopic rod 51 of the cutting head 4 synchronously drives the slide module 52 and the pressure plate unit 53 to move down, so that the pressure plate unit 53 is close to the cutting path of the plate 3, and the pre-operation preparation is completed.

[0067] Cutting head linkage pressure plate unit: Cylinder 16 drives the cutting head 4 to move downward. The cutting head 4 performs cutting operations along the preset cutting path. During the operation, the cutting head 4 abuts against the toggle mechanism 5322 of the toggle structure 532, pushing the slide plate 5321 to slide along the first slide groove 5311 of the mounting frame 531. The pushers 5323 at both ends of the slide plate 5321 drive the corresponding pressure plate structure 533 to move along the second slide groove 5312: the pressure plate structure 533 in the direction of travel of the cutting head 4 automatically avoids the position, and the pressure plate structure 533 on the opposite side presses against the cutting path. At the same time, the upper end of the rotating shaft 53222 slides along the inclined surface of the wedge block 53228, compressing the third spring 53226. The first protrusion 53224 and the first groove 53225 are released from their limits, the abutment plate 53221 rotates to avoid the cutting head 4, and the torsion spring 53227 is stored for standby.

[0068] Automatic plate clamping: The support leg 5331 of the pressure plate structure 533 abuts against the arc plate 534, triggering the touch switch 5336. The electromagnet 5333 is energized and stretches the fourth spring 5335, adsorbing and clamping the cutting path of the plate 3. The support leg 5331 and the second mounting base 5332 slide in cooperation through the third slider 53321 and the third slide groove 53311. The fifth spring 5337 elastically limits and adapts to the fine adjustment of the cutting path. During the cutting operation, the first pressure plate structure 533 on the path of the cutting head 4 always avoids the cutting head 4, while the other pressure plate structures 533 keep the cutting path in a pressing state.

[0069] Dynamic cutting protection: When the cutting head 4 cuts along the path, the first slide structure 521 and the second slide structure 522 of the slide module 52 cooperate to realize the bidirectional relative displacement between the cutting head 4 and the pressure plate unit 53; the first spring 5214 and the second spring 5223 automatically reset in real time to ensure that the pressure plate unit 53 always presses against the cutting path and prevents the cut plate 3 from flipping and touching the cutting head 4.

[0070] Automatic reset upon completion of operation: After cutting ends, the cutting head 4 resets to its initial position, the cylinder 16 drives the cutting head 4 to move upward, the telescopic rod 51 drives the pressure plate unit 53 to move upward, the controller controls all electromagnets 5333 to be de-energized, the electromagnets 5333 automatically reset, and the slide module 52 in the initial state, under the action of the first spring 5214 and the second spring 5223, keeps the cutting head 4 and the center position of the pressure plate unit 53 always coincide, and the device returns to the initial state.

[0071] In this embodiment, the cutting shape of the board is a rectangular structure adapted to the shape of the mounting frame. If the board to be cut is triangular, the operator can use a triangular mounting frame that is compatible with it. Three pressure plate structures can be set inside the mounting frame. If the board to be cut is arc-shaped, the operator can use an arc-shaped mounting frame that is compatible with the arc-shaped structure. Two or more pressure plate structures can be set inside the mounting frame. The cutting principle of triangular or arc-shaped boards and the working principle of the pressure plate structure are the same as those described in this embodiment, and will not be elaborated further here.

[0072] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure plate device for laser cutting, comprising a base frame (1), a plurality of toothed plates (2) disposed within the base frame (1), a plate (3) placed on the toothed plates (2), and a cutting head (4) disposed on the base frame (1), the cutting head (4) being used to cut the plate (3), characterized in that: A pressure plate assembly (5) is fitted around the cutting head (4), and the pressure plate assembly (5) is fixedly installed on the base frame (1). The pressing part of the pressure plate assembly (5) can press onto the cutting path of the cutting head (4) cutting the plate (3). The pressing part pressed onto the cutting path can prevent the plate (3) from flipping and touching the cutting head (4).

2. The pressure plate device for laser cutting according to claim 1, characterized in that: The pressure plate assembly (5) includes a telescopic rod (51), a slide module (52) and a pressure plate unit (53). The slide module (52) is provided at the upper end of the pressure plate unit (53). The slide module (52) is installed on the base frame (1) through the telescopic rod (51). The pressure plate unit (53) can move relative to the telescopic rod (51) through the slide module (52), and the telescopic rod (51) can drive the slide module (52) and the pressure plate unit (53) to move vertically.

3. The pressure plate device for laser cutting according to claim 2, characterized in that: The slide module (52) includes a first slide structure (521) and a second slide structure (522). The first slide structure (521) and the second slide structure (522) are arranged perpendicular to each other. The first slide structure (521) is arranged on the upper end of the pressure plate unit (53). The second slide structure (522) is slidably arranged on the first slide structure (521), and a telescopic rod (51) is arranged on the upper end of the second slide structure (522). The first slide structure (521) includes a first slide rod (5211). There are two first slide rods (5211). The two first slide rods (5211) are located on both sides of the cutting head (4). Each first slide rod (5211) is fixedly installed on the upper end of the pressure plate unit (53) through a first mounting base (5212). A first slider (5213) is slidably arranged on each first slide rod (5211). The two ends of each first slider (5213) are elastically connected to the corresponding first mounting base (5212) through a first spring (5214). The first spring (5214) is used to limit the relative position of the first slider (5213) on the first slide rod (5211).

4. The pressure plate device for laser cutting according to claim 3, characterized in that: The second slide structure (522) includes a second slide rod (5221), a second slider (5222), and a second spring (5223). There are two second slide rods (5221), which are located on both sides of the cutting head (4). The two ends of each second slide rod (5221) are fixedly connected to one side of a first slider (5213). There are two second sliders (5222), which are located on both sides of the cutting head (4). The two ends of each second slider (5222) are slidably connected to the periphery of a second slide rod (5221). A telescopic rod (51) is provided at the upper end of each second slider (5222). Two second springs (5223) are sleeved on the periphery of each second slide rod (5221). The two ends of each second spring (5223) are fixedly connected to one side of the corresponding second slider (5222) and the first slider (5213).

5. A pressure plate device for laser cutting according to claim 2, characterized in that: The pressure plate unit (53) includes a mounting frame (531), a toggle structure (532), and a pressure plate structure (533). The mounting frame (531) has an orifice-shaped structure. A slide module (52) is provided on the upper end of the mounting frame (531). The inner ring of the mounting frame (531) is provided with multiple first slide grooves (5311). Two adjacent first slide grooves (5311) are arranged in a stepped staggered manner. A toggle structure (532) is slidably arranged in each first slide groove (5311). Multiple second slide grooves (5312) are evenly arranged circumferentially at the lower end of the mounting frame (531). Each second slide groove... (5312) A pressure plate structure (533) is slidably arranged inside each of them. The lower end of the pressure plate structure (533) can press against the cutting path. The inner rings of both ends of each actuating structure (532) are respectively fitted around the outer side of a pressure plate structure (533). The actuating structure (532) is used to adjust the relative position of the pressure plate structure (533) in the second slide groove (5312). An arc plate (534) is respectively arranged on one side of the outer wall of each second slide groove (5312). The inner ring of the arc plate (534) can abut against one side of the corresponding pressure plate structure (533).

6. The pressure plate device for laser cutting according to claim 5, characterized in that: The actuating structure (532) includes a sliding plate (5321) and a toggle mechanism (5322). The sliding plate (5321) is slidably disposed in the first slide groove (5311). A pusher (5323) is provided at each end of the sliding plate (5321). The inner ring of each pusher (5323) is fitted around the periphery of a pressure plate structure (533), and the inner walls on both sides of the pusher (5323) can abut against the periphery of the pressure plate structure (533). A first mounting groove (5324) is provided in the middle of the sliding plate (5321). The toggle mechanism (5322) is provided in the first mounting groove (5324), and the periphery of the cutting head (4) can abut against the periphery of the toggle mechanism (5322).

7. A pressure plate device for laser cutting according to claim 6, characterized in that: The lever mechanism (5322) includes an abutment plate (53221) and a rotating shaft (53222). The abutment plate (53221) has a first through hole (53223). The rotating shaft (53222) is rotatably mounted inside the first through hole (53223). Two first protrusions (53224) are arranged opposite each other on the outer periphery of the rotating shaft (53222). Two first grooves (53225) are arranged opposite each other on the inner ring of the first through hole (53223). The outer periphery of the two first protrusions (53224) can be located within the inner ring of the corresponding first grooves (53225). One side of the inner wall of the first mounting groove (5324) is provided with The second mounting groove (53241) is provided with a second through hole (53242) on the inner wall of the other side of the first mounting groove (53241). The upper end of the rotating shaft (53222) passes through the second through hole (53242) and is located above the slide plate (5321). A torsion spring (53227) is sleeved around the rotating shaft (53222), and the two ends of the torsion spring (53227) are respectively fixedly connected to one side of the abutment plate (53221) and one side of the first mounting groove (5324).

8. A pressure plate device for laser cutting according to claim 7, characterized in that: The lever mechanism (5322) also includes a wedge block (53228), there are multiple wedge blocks (53228), one wedge block (53228) is provided on each side of each rotating shaft (53222), and each wedge block (53228) is fixedly installed in the mounting frame (531), and the upper end of each rotating shaft (53222) can abut against the inclined surface of the corresponding wedge block (53228).

9. A pressure plate device for laser cutting according to claim 5, characterized in that: The pressure plate structure (533) includes a support leg (5331), a second mounting base (5332), and an electromagnet (5333). The upper periphery of the support leg (5331) is slidably connected to the second slide groove (5312). The lower end of the support leg (5331) is slidably provided with the second mounting base (5332). The lower end of the second mounting base (5332) is provided with a third mounting groove (5334). The electromagnet (5333) is provided in the third mounting groove (5334), and the electromagnet (5333) is elastically connected to the bottom of the third mounting groove (5334) by a fourth spring (5335). The lower end of the electromagnet (5333) can press against the cutting path. The lower end of the support leg (5331) is provided with a third slide groove (53311), the upper end of the second mounting base (5332) is provided with a third slider (53321), and the outer periphery of the third slider (53321) is slidably connected to the inner ring of the third slide groove (53311). A fifth spring (5337) is provided on one side of the support leg (5331), and one end of the fifth spring (5337) is fixedly connected to one side of the second mounting base (5332). The fifth spring (5337) is used to limit the relative position of the support leg (5331) and the second mounting base (5332).

10. A pressure plate device for laser cutting according to claim 9, characterized in that: The pressure plate structure (533) also includes a touch switch (5336), which is disposed on one side of the second mounting base (5332). The touch switch (5336) is electrically connected to the electromagnet (5333), and the actuating end of the touch switch can abut against the inner ring of the arc plate (534).

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