Hardware cover plate processing system based on multi-section positioning combination structure

Abstract

The application relates to the technical field of laser cutting processing, and discloses a hardware cover plate processing system based on a multi-section positioning combination structure, which comprises a machine table with a residue storage groove, a gantry control mechanism is arranged on the machine table, a laser head is installed on the gantry control mechanism, a supporting frame is symmetrically arranged on the upper end of the machine table, two upper and lower slide rails are installed on the inner walls of the left and right ends of the residue storage groove, and a bottom plate is further arranged in the residue storage groove. The hardware cover plate processing system based on the multi-section positioning combination structure can effectively solve the problem that, in the prior art, when a laser cutting processing device processes a hardware thin plate which is prone to bending deformation, it is difficult to provide stable and reliable clamping and positioning of the hardware thin plate under the premise of ensuring the flatness of the hardware thin plate; if there is residual waste material on the hardware thin plate after laser cutting, the residual waste material usually needs to be removed by manual knocking, which not only consumes time and effort, but also causes the hardware thin plate to be secondarily bent and deformed and the surface to be damaged.

Description

Technical Field

[0001] This invention relates to the field of laser cutting processing technology, and specifically to a hardware cover plate processing system based on a multi-segment positioning combination structure. Background Technology

[0002] With the increasing demands for precision, quality, and production efficiency in the manufacturing industry, laser cutting technology has been widely used in the processing of metal cover plates due to its unique advantages. As a key basic component in fields such as machinery manufacturing and electronic equipment, the production process of metal cover plates highly relies on high-precision and high-efficiency processing and positioning. Currently, most metal cover plates are made by stamping thin metal sheets and then laser cutting them to process precise holes or contours. In the laser cutting production line for metal cover plates, the thin sheet raw materials, semi-finished products, and workpieces to be cut need to achieve stable flow, precise alignment, and reliable fixation between multiple stations such as feeding, positioning, cutting, and unloading.

[0003] In response to this, this application designs a hardware cover plate processing system based on a multi-segment positioning combination structure. Existing laser cutting processing equipment mostly adopts an integral rigid clamp or a simple vacuum adsorption structure. When processing thin metal plates that are easily bent and deformed, the clamping and positioning accuracy needs to be improved. It is difficult to provide stable and reliable clamping and positioning while ensuring the flatness of the thin metal plate. If there is residual waste on the thin metal plate after laser cutting, it is usually necessary to remove the residual waste manually by knocking or other methods. This is not only time-consuming and labor-intensive, but also causes secondary bending deformation and surface damage to the thin metal plate. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a hardware cover plate processing system based on a multi-segment positioning combination structure. This system effectively solves the problems in existing technologies where laser cutting equipment struggles to provide stable and reliable clamping and positioning for easily bent and deformable thin metal sheets while ensuring the flatness of the sheets. Furthermore, if residual waste remains on the thin metal sheet after laser cutting, it is usually necessary to manually remove it by hammering or other methods, which is not only time-consuming and labor-intensive but also leads to secondary bending deformation and surface damage of the thin metal sheet.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a hardware cover plate processing system based on a multi-segment positioning combination structure, comprising:

[0007] The machine is equipped with a slag storage tank. A gantry control mechanism is installed on the machine, and a laser head is installed on the gantry control mechanism. Support frames are symmetrically arranged at the front and back of the upper part of the machine. Two upper and lower slide rails are installed on the inner walls of the left and right ends of the slag storage tank. A bottom plate is also installed inside the slag storage tank. A leveling part is set on both the machine and the support frame. A clamping part is set on both the two upper slide rails and the bottom plate.

[0008] The leveling section includes rectangular sliding holes symmetrically opened on both the front and rear support frames. A sliding seat is slidably installed on the inner wall of the rectangular sliding hole. A receiving hole is opened at the front end of the sliding seat. A sleeve plate is slidably installed on the inner wall of the receiving hole by a compression spring. Support shafts are symmetrically arranged on the upper part of the machine platform. The left and right ends of the support shafts are respectively rotatably inserted through the corresponding sleeve plates. Roller pressing groups are jointly arranged on the two support frames and the two support shafts. Drive adjustment groups are jointly arranged on the machine platform and the two support frames.

[0009] The clamping part includes a U-shaped plate located on the upper side of the base plate, a grid material platform installed on the inner wall of the U-shaped plate, several electromagnetic platforms installed on the upper part of the base plate, and a clamping assembly installed on the U-shaped plate.

[0010] Furthermore, the roller pressing assembly includes hollow bushings that are rotatably sleeved on the outer walls of the left and right support shafts. A counterweight roller is rotatably sleeved on the outer wall of the hollow bushing. Several sets of mounting holes are opened on the outer wall of the counterweight roller. A magnetic abutment rod is slidably installed on the inner wall of the mounting hole by a tension spring.

[0011] Furthermore, the roller pressing assembly also includes boss gears that are symmetrically fixedly mounted on the outer walls of the left and right support shafts. The end of the boss gear near the counterweight roller is rotatably connected to the corresponding sleeve plate. The opposite ends of the front and rear support frames are equipped with mating plates, and the opposite ends of the front and rear mating plates are equipped with racks. The outer walls of the left and right support shafts are rotatably mounted with scrapers. The front and rear ends of the scrapers are equipped with connecting sleeves that are rotatably mounted on the outer walls of the corresponding support shafts. The end of the connecting sleeve away from the scraper is fixedly connected to the corresponding sleeve plate.

[0012] Furthermore, the drive adjustment group includes a dual-axis motor mounted on the upper ends of both the front and rear support frames via motor mounts. The left and right conveying shafts of the dual-axis motor are respectively fixedly connected to lead screws with opposite rotation directions, and the left and right lead screws are respectively threaded onto the corresponding sliding seats.

[0013] Furthermore, the drive adjustment group also includes a limit slide rod symmetrically installed on the left side of the upper part of the machine platform. The limit slide rod slides through the corresponding support frame. A second lead screw is symmetrically rotatably installed on the right side of the upper part of the machine platform. The second lead screw is threaded to the corresponding support frame. The two lead screws on the front and rear sides are connected by a transmission belt. A servo motor that is connected to the second lead screw is installed on the upper part of the machine platform through a motor mount.

[0014] Furthermore, the clamping assembly includes an inverted C-shaped mounting groove at the upper end of the inverted plate, and an inverted plate is slidably mounted on the inner wall of the inverted mounting groove. An inverted pressure plate is mounted at the upper end of the inverted plate. A pneumatic push rod is symmetrically mounted on the lower middle part of the inverted plate via a mounting seat. The telescopic end of the pneumatic push rod slides through the inverted plate and is fixedly connected to the inverted plate. Several guide rods are also slidably mounted through the lower end of the inverted plate, and the upper ends of the guide rods are all fixedly connected to the inverted plate.

[0015] Furthermore, a grid blocking frame is provided on the upper side of the base plate, and a receiving groove is provided on the upper side of the base plate corresponding to the grid blocking frame. Several mounting rods that slide through the base plate are installed at the lower end of the grid blocking frame. A baffle is installed at the lower end of the mounting rod, and the upper end of the baffle is connected to the bottom end of the base plate by a tension spring.

[0016] Furthermore, slide blocks are symmetrically installed on both the left and right sides of the lower end of the U-shaped plate. Several slide blocks are slidably fitted onto the corresponding slide rails on the upper side. Support columns are installed at the lower ends of several slide blocks, and slide blocks are also installed at the lower ends of the support columns. Several slide blocks on the lower side are slidably fitted onto the corresponding slide rails on the lower side.

[0017] Furthermore, pneumatic push rods are symmetrically installed on the upper end of the inner wall of the slag storage tank via mounting bases. The telescopic ends of the pneumatic push rods are fixedly connected to the base plate, and several air blowing pipes are installed on the inner walls of the front and rear ends of the slag storage tank corresponding to several electromagnetic platforms.

[0018] Furthermore, clearance holes are provided at the upper end of the base plate corresponding to the positions of the two pneumatic push rods, several guide slide rods, and several support columns, and the base plate is simultaneously slidably sleeved on the outer wall of several support columns.

[0019] The technical solution provided by this invention has the following advantages compared with the prior art:

[0020] This invention provides a hardware cover plate processing system based on a multi-segment positioning combination structure. During the clamping and fixing stage, when the left and right counterweight rollers and the scraper move away from each other and approach the U-shaped pressure plate, the front and rear pneumatic push rods jointly control the U-shaped plate to move downward until the U-shaped pressure plate is tightly pressed onto the hardware sheet. The method of leveling before clamping ensures the clamping horizontal tension of the hardware sheet, counteracts the internal stress of the hardware sheet itself, prevents natural warping before laser cutting, and keeps the hardware sheet flat throughout the laser cutting process. It also avoids the problem that conventional fixtures directly clamp and fix the hardware sheet, which has lower clamping and positioning accuracy and makes it difficult to provide stable and reliable clamping and positioning for the hardware sheet.

[0021] During the sheet metal cutting stage, when the counterweight roller rolls along the upper part of the sheet metal each time, several magnetic abutment rods will be obstructed when they move to the area not laser-cut and cannot smoothly extend into the corresponding mounting holes. However, when several magnetic abutment rods move to the laser-cut area, if there is residual waste, they can smoothly extend into the corresponding mounting holes and push the residual waste downward to remove it from the sheet metal. This avoids the time-consuming and laborious process of manually removing residual waste, as well as the problem of secondary bending deformation and surface damage to the sheet metal caused by removing it by knocking or other methods. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of a partial three-dimensional cross-section of the machine base, slide rail, and base plate in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of a partial three-dimensional cross-section of the slide rail base plate and the clamping part in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional separation of the base plate and the clamping part in an embodiment of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the machine platform and leveling section in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional separation of the leveling part in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of a partial three-dimensional cross-section of the roller pressing assembly in an embodiment of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of point X in the middle;

[0031] Figure 9 This is a schematic diagram of the three-dimensional separation of the support shaft and the roller pressing group in an embodiment of the present invention.

[0032] The labels in the diagram represent: 1. Machine base; 2. Gantry control mechanism; 3. Laser head; 4. Support frame; 5. Slide rail; 51. Support column; 6. Base plate; 61. Pneumatic push rod II; 7. Leveling section; 71. Sliding seat; 72. Sleeve plate; 73. Support shaft; 74. Roller assembly; 741. Hollow bushing; 742. Counterweight roller; 743. Magnetic contact rod; 744. Boss gear; 745. Mating plate; 746. Rack; 747. Shovel; 74 8. Connecting sleeve; 75. Drive adjustment group; 751. Dual-axis motor; 752. Lead screw one; 753. Limiting slide rod; 754. Lead screw two; 755. Servo motor; 8. Clamping part; 81. Rectangular plate; 82. Grating platform; 83. Electromagnetic platform; 831. Grating blocking frame; 832. Mounting slide rod; 84. Clamping group; 841. C-shaped plate; 842. Rectangular pressure plate; 843. Pneumatic push rod one; 844. Guide slide rod; 9. Air blowing pipe. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example:

[0036] Please see Figures 1-9 This invention provides a technical solution: a hardware cover plate processing system based on a multi-segment positioning combination structure, comprising:

[0037] The machine 1 is equipped with a slag storage tank. The machine 1 is equipped with a gantry control mechanism 2. The gantry control mechanism 2 is equipped with a laser head 3. The upper end of the machine 1 is symmetrically equipped with support frames 4. The inner walls of the left and right ends of the slag storage tank are equipped with two upper and two lower slide rails 5. The slag storage tank is also equipped with a bottom plate 6. The machine 1 and the support frame 4 are jointly equipped with a leveling part 7. The two upper slide rails 5 and the bottom plate 6 are jointly equipped with a clamping part 8.

[0038] The leveling section 7 includes rectangular sliding holes symmetrically opened on both the front and rear support frames 4. A sliding seat 71 is slidably installed on the inner wall of the rectangular sliding hole. The sliding seat 71 has a convex structure and a receiving hole is opened at the front end of the sliding seat 71. A sleeve plate 72 is slidably installed on the inner wall of the receiving hole by a compression spring. Support shafts 73 are symmetrically arranged on the upper end of the machine base 1. The left and right ends of the support shafts 73 are respectively rotatably inserted through the corresponding sleeve plates 72. Roller pressing groups 74 are jointly arranged on the two support frames 4 and the two support shafts 73. Drive adjustment groups 75 are jointly arranged on the machine base 1 and the two support frames 4.

[0039] The clamping part 8 includes a spiral plate 81 located on the upper side of the base plate 6. A grid material platform 82 is installed on the inner wall of the spiral plate 81. Several electromagnetic platforms 83 are installed on the upper end of the base plate 6. The electromagnetic platforms 83 correspond one-to-one with several cavities of the grid material platform 82. A clamping group 84 is provided on the spiral plate 81.

[0040] The roller pressing assembly 74 includes hollow bushings 741 that are rotatably fitted on the outer walls of the left and right support shafts 73. The hollow bushings 741 are composed of a strong magnetic sleeve with a notch and a fan-shaped filling column. A counterweight roller 742 is rotatably fitted on the outer wall of the hollow bushings 741. Several sets of mounting holes are opened on the outer wall of the counterweight roller 742. Each set of mounting holes consists of mounting holes that are evenly distributed in a circle. The several sets of mounting holes are evenly distributed from front to back, and the mounting holes are designed in a stepped shape. A magnetic attraction rod 743 is slidably installed on the inner wall of the mounting hole by a tension spring. The magnetic attraction rod 743 has a stepped structure.

[0041] The roller pressing assembly 74 also includes boss gears 744 that are symmetrically fixedly mounted on the outer walls of the left and right support shafts 73. The end of the boss gear 744 near the counterweight roller 742 is rotatably connected to the corresponding sleeve plate 72. The opposite ends of the two support frames 4 are each equipped with a mating plate 745. The upper left and right sides of the mating plate 745 are wedge-shaped protrusions, and the opposite ends of the two mating plates 745 are each equipped with a rack 746. The boss gear 744 meshes with the corresponding rack 746. The outer wall of the boss structure of the boss gear 744 rolls in contact with the corresponding mating plate 745. The outer walls of the left and right support shafts 73 are rotatably mounted with scrapers 747. The lower end face of the scraper 747 is rounded, and the front and rear ends of the scraper 747 are each equipped with a connecting sleeve 748 that is rotatably mounted on the outer wall of the corresponding support shaft 73. The end of the connecting sleeve 748 away from the scraper 747 is fixedly connected to the corresponding sleeve plate 72.

[0042] The drive adjustment group 75 includes a dual-axis motor 751 mounted on the upper ends of the front and rear support frames 4 via motor mounts. The left and right conveying shafts of the dual-axis motor 751 are respectively fixedly connected to lead screws 752 with opposite rotation directions. The left and right lead screws 752 are respectively threaded to the corresponding sliding seats 71, and the ends of the left and right lead screws 752 away from the dual-axis motor 751 are respectively rotatably fitted with bearing seats fixedly connected to the corresponding support frames 4.

[0043] The drive adjustment group 75 also includes a limit slide rod 753 symmetrically installed on the left side of the upper end of the machine base 1. A limit plate is installed on the upper end of the limit slide rod 753. The limit slide rod 753 slides through the corresponding support frame 4. A second lead screw 754 is symmetrically rotatably installed on the right side of the upper end of the machine base 1. The second lead screw 754 is threaded to the corresponding support frame 4. The second lead screw 754 on the front and rear sides is connected by a transmission belt. A servo motor 755 that is connected to the second lead screw 754 is installed on the upper end of the machine base through a motor mount.

[0044] The clamping assembly 84 includes an inverted C-shaped mounting groove at the upper end of the U-shaped plate 81. The U-shaped mounting groove is designed with its opening facing left, and an inverted plate 841 is slidably mounted on the inner wall of the U-shaped mounting groove. A U-shaped pressure plate 842 is mounted on the upper end of the U-shaped plate 841. The inner side of the upper end of the U-shaped pressure plate 842 has a wedge-shaped structure. A pneumatic push rod 843 is symmetrically mounted on the lower middle part of the U-shaped plate 81 through a mounting seat. The telescopic end of the pneumatic push rod 843 slides through the U-shaped plate 81 and is fixedly connected to the U-shaped plate 841. Several guide slide rods 844 are also slidably mounted through the lower end of the U-shaped plate 81. The several guide slide rods 844 are evenly distributed in a rectangle. A limit plate is mounted on the lower end of the guide slide rods 844, and the upper ends of the several guide slide rods 844 are all fixedly connected to the U-shaped plate 841.

[0045] A grid blocking frame 831 is provided on the upper side of the base plate 6. A receiving groove is opened at the upper end of the base plate 6 corresponding to the grid blocking frame 831. Several mounting slide rods 832 that slide through the base plate 6 are installed at the lower end of the grid blocking frame 831. The mounting slide rods 832 are evenly distributed in a rectangle, and a limit plate is installed at the lower end of the mounting slide rods 832. The upper end of the limit plate is connected to the bottom end of the base plate 6 by a tension spring.

[0046] The lower end of the U-shaped plate 81 is symmetrically equipped with slide blocks on both the left and right sides. Several slide blocks are slidably fitted onto the corresponding slide rails 5 on the upper side. Support columns 51 are installed at the lower ends of the slide blocks, and slide blocks are also installed at the lower ends of the support columns 51. Several slide blocks on the lower side are slidably fitted onto the corresponding slide rails 5 on the lower side.

[0047] The upper end of the inner wall of the slag storage tank is symmetrically equipped with pneumatic push rods 61 on the left and right sides via mounting bases. The telescopic ends of the pneumatic push rods 61 are fixedly connected to the base plate 6. Several air blowing pipes 9 are installed on the inner walls of the front and rear ends of the slag storage tank, corresponding to several electromagnetic platforms 83. The air blowing pipes 9 are evenly distributed from left to right.

[0048] The upper end of the base plate 6 is provided with clearance holes corresponding to the positions of the two pneumatic push rods 843, several guide slide rods 844 and several support columns 51, and the base plate 6 is simultaneously slidably sleeved on the outer wall of several support columns 51.

[0049] In practice:

[0050] First, the gantry control mechanism 2 in this application is used to control the laser head 3 to move in three directions, which facilitates the laser cutting of thin metal sheets. The gantry control mechanism 2 is prior art and will not be described in detail here. The U-shaped pressure plate 842 is initially in the raised state, and the two counterweight rollers 742 are initially located in the middle above the U-shaped pressure plate 842, which does not hinder the subsequent feeding of thin metal sheets. In addition, several electromagnetic tables 83 are in the de-energized state.

[0051] In the metal sheet loading and pre-alignment stage, the workers first place the metal sheet to be processed smoothly on the grid table 82 of the U-shaped plate 81 from left to right, guiding and pushing the metal sheet along the edge of the grid table 82 until the right end of the metal sheet is in close contact with the inner wall of the U-shaped plate 841, thus achieving the initial placement and positioning of the metal sheet in the horizontal direction. The inner wall of the U-shaped plate 841 is used as the reference positioning surface of the metal sheet, and with the plane support of the grid table 82, the consistency of the placement position of the metal sheet is ensured.

[0052] During the leveling preparation stage, after the metal sheet is placed, the two pneumatic push rods 61 at the front and rear are controlled to move the base plate 6 upward. The base plate 6 will move several electromagnetic tables 83 upward synchronously until the upper surface of the electromagnetic tables 83 is flush with the upper surface of the grid table 82. At this time, the lower end of the metal sheet is supported by the grid table 82 and the electromagnetic tables 83, which facilitates the subsequent leveling operation. During the upward movement of the base plate 6, the grid blocking frame 831 and several mounting slide rods 832 will move upward synchronously with the base plate 6 until the upper end of the grid blocking frame 831 is tightly attached to the lower end of the grid table 82. At this time, the grid blocking frame 831 will also move into the receiving groove.

[0053] In the height adaptive adjustment stage of the leveling section 7, the servo motor 755 controls the rotation of the connected lead screw 754. This lead screw 754 is driven by a transmission belt to drive another lead screw 754 to rotate synchronously. Since the lead screw 754 is threadedly connected to the support frame 4, and the support frame 4 restricts its rotational freedom by the limiting slide rod 753, the front and rear support frames 4 will move vertically downwards along the corresponding limiting slide rods 753 to the appropriate positions. The front and rear support frames 4 will drive the left and right support shafts 73 to move downwards synchronously. The left and right support shafts 73 will drive the corresponding counterweight rollers 742 and scraper 747 to move downwards synchronously, until, under the action of the compression spring and the gravity of the counterweight rollers 742, several sleeves 72 will move along the inner wall of the receiving hole of the sliding seat 71. The adaptive sliding compensation enables the outer wall of the counterweight roller 742 and the lower end of the scraper 747 to adaptively and tightly adhere to the thin metal sheet, while maintaining uniform adhesion pressure. If there is warping or other issues in the middle of the thin metal sheet, the outer wall of the counterweight roller 742 and the lower end of the scraper 747 can directly level and correct the middle of the thin metal sheet to the left and right sides. In addition, the height of the leveling part 7 can be precisely adjusted by the cooperation of the lead screw 754 and the limiting slide rod 753 to adapt to thin metal sheets of different thicknesses. It should be noted that after the outer wall of the counterweight roller 742 adaptively and tightly adheres to the thin metal sheet, it is necessary to ensure that the boss gears 744 and racks 746 on both the front and rear sides are meshed with each other. The slidable sleeve 72 in this application can prevent damage to the thin metal sheet caused by the rigid contact of the counterweight roller 742.

[0054] In the two-stage leveling operation, after the outer wall of the counterweight roller 742 and the lower end of the scraper 747 are adaptively and tightly attached to the thin metal sheet, several electromagnetic tables 83 need to be controlled to start working and magnetically connected to the thin metal sheet to initially stabilize its position. It should be noted that the magnetic force of the electromagnetic tables 83 will not affect the displacement of the thin metal sheet in the left and right directions during subsequent leveling operations. After being subjected to the leveling force, the thin metal sheet can overcome the magnetic attraction and gradually flatten until it is completely and tightly attached to the grid table 82 and the electromagnetic tables 83. Then, the two dual-axis motors 751 control the corresponding left and right support shafts 73 to rotate synchronously. Since several lead screws 752 are threadedly connected to the corresponding sliding seats 71, and the sliding seats 71 restrict the degree of rotation freedom through rectangular sliding holes, the left and right sliding seats 71 on the same side will move away from each other synchronously along the corresponding rectangular sliding holes. The left and right sliding seats 71 will drive the corresponding support shafts 73 to move away from each other synchronously through the corresponding sleeves 72. The left and right support shafts 73 will drive the corresponding counterweight rollers 742 and shovels 747 to move away from each other synchronously. It should be noted that during the period when the left and right support shafts 73 move away from each other, since the shovels 747 are fixedly connected to the corresponding sleeves 72 through the connecting sleeves 748, the horizontal position of the left and right shovels 747 will remain fixed. However, during the movement of the left and right support shafts 73, the corresponding support shafts 73 will rotate synchronously through the meshing transmission of the boss gear 744 and the rack 746, thereby driving the corresponding counterweight rollers 742 to rotate. This transforms the horizontal movement of the left and right support shafts 73 into the horizontal movement of the left and right counterweight rollers 742. The rolling of the counterweight roller 742 reduces the friction between the counterweight roller and the upper surface of the thin metal sheet during the leveling process, avoiding scratches. This allows the two counterweight rollers 742 to perform the initial leveling of the thin metal sheet together, and the two scrapers 747 to perform the secondary leveling of the thin metal sheet together. First, the counterweight roller 742 rolls and corrects the macroscopic deformations such as wavy and slight bending of the thin metal sheet. Then, the scrapers 747 smooth and eliminate the microscopic defects of the thin metal sheet. Since the lower end of the scraper 747 is rounded, it will not damage the surface of the thin metal sheet.

[0055] During the clamping and fixing stage, when the two counterweight rollers 742 and the scraper 747 move away from each other and approach the U-shaped pressure plate 842, the thin metal sheet has completed the double-stage leveling process. Then, the two pneumatic push rods 843 together control the U-shaped plate 841 to move the U-shaped pressure plate 842 downwards. During this process, the U-shaped plate 841 moves vertically downwards along several guide rods 844 until the U-shaped pressure plate 842 is tightly pressed against the thin metal sheet. This method of leveling before clamping ensures the horizontal tension of the thin metal sheet, counteracts its internal stress, prevents natural warping before laser cutting, and maintains the overall flatness of the thin metal sheet during laser cutting. It also avoids the direct clamping of the thin metal sheet by conventional fixtures. The fixed method has limitations in clamping and positioning accuracy, making it difficult to provide stable and reliable clamping and positioning for thin metal sheets. This can be addressed by controlling two pneumatic push rods 61 to move the base plate 6 downwards and restore it to its original position. The base plate 6 will then move several electromagnetic platforms 83 downwards synchronously to their original positions. At this time, the grid blocking frame 831 and several mounting slide rods 832 will follow the base plate 6 downwards synchronously to their original positions. After losing the limiting force of the grid platform 82, the grid blocking frame 831 will exit the receiving groove under the action of the tension spring and gradually move relative to the upper surfaces of the electromagnetic platforms 83, thus achieving the effect of the grid blocking frame 831 and the upper surfaces of the electromagnetic platforms 83 forming a complete waste receiving platform.

[0056] It should be noted that after the left and right counterweight rollers 742 and the scraper 747 move away from each other and approach the U-shaped pressure plate 842, they will continue to move away from each other until the left and right counterweight rollers 742 move to the left and right sides of the upper end of the U-shaped pressure plate 842, respectively. During this period, the left and right support shafts 73 will drive the corresponding boss gears 744 to continue to move away from each other. When the outer wall of the boss structure of the left and right boss gears 744 rolls to the wedge-shaped protrusions on the left and right sides of the upper end of the corresponding mating plate 745, the left and right boss gears 744 will disengage from the rack 746 and then move upward and tilt along the wedge-shaped protrusions of the mating plate 745 to a suitable position. At this time, the left and right sleeves 72 will drive the corresponding support shafts 73 to move upward and tilt synchronously, and the left and right support shafts 73 will drive the corresponding counterweight rollers 742 to move upward and tilt synchronously, thereby achieving the effect of the left and right counterweight rollers 742 smoothly moving upward and tilting along the wedge-shaped structure on the inner side of the upper end of the U-shaped pressure plate 842 and continuing to move away from each other.

[0057] During the laser cutting operation, the laser head 3 is controlled by the gantry control mechanism 2 to move along the X, Y, and Z axes to perform laser cutting on the fixed metal sheet. Most of the waste generated during the cutting process will fall onto the grid blocking frame 831 and several electromagnetic tables 83, and be blown into the slag storage tank of the machine platform 1 by several air blow pipes 9 on one side, achieving the effect of centralized collection of waste. After the cutting is completed, the laser head 3 is reset, and the gantry control mechanism 2 stops working. It should be noted that the several air blow pipes 9 on the left and right sides of the inner wall of the slag storage tank can work alternately to blow the waste from each laser cutting into the slag storage tank alternately from left to right, avoiding the problem of waste accumulating on one side of the slag storage tank.

[0058] During the sheet metal cutting stage, if residual waste remains on the sheet metal and cannot be easily removed, the servo motor 755 can be used to control the front and rear support frames 4 to move upwards and adjust their height. Then, the front and rear dual-axis motors 751 can be used to control the left and right support shafts 73 to move closer to each other until they return to their original positions. The servo motor 755 can then be used to control the front and rear support frames 4 to move downwards and adjust their height again. This double-leveling operation is repeated to control the outer walls of the left and right counterweight rollers 742 to be tightly attached to the sheet metal and move away from each other. During this process, several magnetic abutment rods 743 will rotate synchronously with the corresponding counterweight rollers 742. It should be noted that since the hollow bushing 741 is composed of a strong magnetic sleeve with a notch and a fan-shaped filling column, with the notch of the strong magnetic sleeve facing the sheet metal directly below, when several magnetic abutment rods 743 rotate to the fan-shaped filling column, under the action of the tension spring, several The magnetic abutment rods 743 will extend into their respective mounting holes and abut the corresponding areas of the thin metal sheet. When several magnetic abutment rods 743 rotate to the strong magnetic sleeve, they will retract into their respective mounting holes under the magnetic attraction of the strong magnetic sleeve. It should also be noted that during each roll of the counterweight roller 742 along the upper part of the thin metal sheet, when several magnetic abutment rods 743 move to the area not laser-cut, they will be obstructed and unable to extend smoothly into their respective mounting holes. However, when several magnetic abutment rods 743 move to the laser-cut area, if there is residual waste, they can extend smoothly into their respective mounting holes and push the residual waste downwards to detach it from the thin metal sheet. Finally, the processed thin metal sheet can be removed by the staff, avoiding the time-consuming and laborious process of manually removing residual waste and the problem of secondary bending deformation and surface damage to the thin metal sheet caused by knocking or other methods.

[0059] Furthermore, when there is slag on the upper end of the grating platform 82 and several electromagnetic platforms 83, several electromagnetic platforms 83 can be controlled to move upwards until they are flush with the upper surface of the grating platform 82. Then, the two scrapers 747 on the left and right can be controlled to move downwards until they are in close contact with the grating platform 82 and several electromagnetic platforms 83 and move closer to each other. At this time, the two scrapers 747 on the left and right will work together to remove and clean the upper surface of the grating platform 82 and several electromagnetic platforms 83, thereby achieving the effect of removing and cleaning the slag remaining on the grating platform 82 and several electromagnetic platforms 83, and avoiding the residual slag from affecting the subsequent leveling and precise clamping of the metal sheet.

[0060] In summary, this application has the following advantages:

[0061] Advantage 1: During the height self-adjustment stage of the leveling section 7, the servo motor 755 controls the rotation of the connected lead screw 754. At this time, the front and rear support frames 4 will move vertically downward to the appropriate position along the corresponding limit slide rod 753. The left and right support shafts 73 will drive the corresponding counterweight roller 742 and scraper 747 to move downward synchronously, thereby achieving the effect of adaptive and tight contact between the outer wall of the counterweight roller 742 and the lower end of the scraper 747 and the metal sheet, and maintaining uniform contact pressure. If there is warping in the middle of the metal sheet, the outer wall of the counterweight roller 742 and the lower end of the scraper 747 can directly level and correct the middle of the metal sheet to the left and right sides. In addition, through the cooperation of the lead screw 754 and the limit slide rod 753, the height of the leveling section 7 can be precisely adjusted to adapt to metal sheets of different thicknesses. The sliding sleeve 72 in this application can avoid damage to the metal sheet caused by the rigid contact of the counterweight roller 742.

[0062] Secondly, in the two-stage leveling operation, several electromagnetic tables 83 are controlled to start working and are magnetically connected to the thin metal sheet to initially stabilize its position. Then, the two dual-axis motors 751 at the front and rear control the corresponding left and right support shafts 73 to rotate synchronously. At this time, the left and right support shafts 73 will drive the corresponding counterweight rollers 742 and scrapers 747 to move away from each other synchronously. This can transform the horizontal movement of the left and right support shafts 73 into the rolling of the left and right counterweight rollers 742, reducing the friction between the left and right support shafts and the upper surface of the thin metal sheet during the leveling process and avoiding scratches. This achieves the effect of the left and right counterweight rollers 742 jointly performing the initial leveling work on the thin metal sheet, and the left and right scrapers 747 jointly performing the secondary smoothing work on the thin metal sheet. First, the counterweight rollers 742 roll and correct the macroscopic deformations such as wavy and slight bending of the thin metal sheet, and then the scrapers 747 smooth and eliminate the microscopic defects of the thin metal sheet.

[0063] Thirdly, during the clamping and fixing stage, before the two counterweight rollers 742 and the scraper 747 move away from each other and approach the U-shaped pressure plate 842, the two pneumatic push rods 843 jointly control the U-shaped plate 841 to drive the U-shaped pressure plate 842 downward until the U-shaped pressure plate 842 is tightly pressed onto the thin metal plate. The method of leveling before clamping can ensure the clamping horizontal tension of the thin metal plate, offset the internal stress of the thin metal plate itself, prevent it from naturally warping before laser cutting, and keep the thin metal plate flat throughout the laser cutting process. It can also avoid the problem that conventional fixtures directly clamp and fix the thin metal plate, which has the problem that the clamping and positioning accuracy needs to be improved and it is difficult to provide stable and reliable clamping and positioning for the thin metal plate.

[0064] Fourthly, it can control the two pneumatic push rods 61 at the front and rear to jointly drive the base plate 6 to move downward and return to its original position. The base plate 6 will drive several electromagnetic platforms 83 to move downward and return to their original position in sync. The grid blocking frame 831 will gradually move relative to each other to a position that is flush with the upper surface of the several electromagnetic platforms 83, thereby achieving the effect that the grid blocking frame 831 and the upper surface of the several electromagnetic platforms 83 together form a complete waste receiving platform.

[0065] Fifthly, during the metal sheet cutting stage, when the counterweight roller 742 rolls along the upper part of the metal sheet, several magnetic abutment rods 743 will be obstructed from extending smoothly into the corresponding mounting holes when they move to the area not laser-cut. However, when several magnetic abutment rods 743 move to the laser-cut area, if there is residual waste, they can extend smoothly into the corresponding mounting holes and push the residual waste downwards to detach it from the metal sheet. This avoids the time-consuming and labor-intensive process of manually removing residual waste, as well as the problem of secondary bending deformation and surface damage to the metal sheet caused by removing it by knocking or other methods.

[0066] Advantage six: When there is slag on the upper surface of the grating table 82 and several electromagnetic tables 83, the two scrapers 747 on the left and right are controlled to move downwards until they are in close contact with the grating table 82 and several electromagnetic tables 83 and approach each other. At this time, the two scrapers 747 on the left and right will work together to remove and clean the upper surface of the grating table 82 and several electromagnetic tables 83, thereby achieving the effect of removing and cleaning the slag remaining on the grating table 82 and several electromagnetic tables 83, and avoiding the residual slag from affecting the subsequent leveling and precise clamping of the metal sheet.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hardware cover plate processing system based on a multi-segment positioning combination structure, characterized in that, include: A machine base (1) with a slag storage tank is provided. A gantry control mechanism (2) is provided on the machine base (1). A laser head (3) is installed on the gantry control mechanism (2). A support frame (4) is symmetrically arranged at the front and back of the upper end of the machine base (1). Two upper and lower slide rails (5) are installed on the inner walls of the left and right ends of the slag storage tank. A bottom plate (6) is also provided inside the slag storage tank. A leveling part (7) is provided on the machine base (1) and the support frame (4). A clamping part (8) is provided on the two upper slide rails (5) and the bottom plate (6). The leveling part (7) includes rectangular sliding holes symmetrically opened on the front and rear support frames (4). A sliding seat (71) is slidably installed on the inner wall of the rectangular sliding hole. A receiving hole is opened at the front end of the sliding seat (71). A sleeve plate (72) is slidably installed on the inner wall of the receiving hole by a compression spring. A support shaft (73) is symmetrically arranged on the upper end of the machine base (1). The left and right ends of the support shaft (73) are respectively rotated through the corresponding sleeve plate (72). Roller pressing group (74) is arranged on the two support frames (4) and the two support shafts (73). A drive adjustment group (75) is arranged on the machine base (1) and the two support frames (4). The roller pressing group (74) includes a hollow bushing (741) that is rotatably sleeved on the outer wall of the left and right support shafts (73). A counterweight roller (742) is rotatably sleeved on the outer wall of the hollow bushing (741). Several sets of mounting holes are opened on the outer wall of the counterweight roller (742). A magnetic abutment rod (743) is slidably installed on the inner wall of the mounting hole by a tension spring. The roller pressing group (74) further includes a boss gear (744) that is symmetrically fixedly sleeved on the outer walls of the left and right support shafts (73). The end of the boss gear (744) near the counterweight roller (742) is rotatably connected to the corresponding sleeve plate (72). The opposite ends of the front and rear support frames (4) are equipped with mating plates (745). The opposite ends of the front and rear mating plates (745) are equipped with racks (746). The outer walls of the left and right support shafts (73) are rotatably sleeved with shovels (747). The front and rear ends of the shovels (747) are equipped with connecting sleeves (748) that are rotatably sleeved on the outer walls of the corresponding support shafts (73). The end of the connecting sleeve (748) away from the shovels (747) is fixedly connected to the corresponding sleeve plate (72). The clamping part (8) includes a U-shaped plate (81) located on the upper side of the base plate (6), a grid material platform (82) is installed on the inner wall of the U-shaped plate (81), a number of electromagnetic platforms (83) are installed on the upper end of the base plate (6), a grid blocking frame (831) is also provided on the upper side of the base plate (6), a receiving groove is opened on the upper end of the base plate (6) corresponding to the grid blocking frame (831), a number of mounting slide rods (832) that slide through the base plate (6) are installed on the lower end of the grid blocking frame (831), a baffle is installed on the lower end of the mounting slide rod (832), and the upper end of the baffle is connected to the bottom end of the base plate (6) by a tension spring. The U-shaped plate (81) is provided with a clamping group (84). The clamping assembly (84) includes an inverted mounting groove at the upper end of the inverted plate (81), and an inverted plate (841) is slidably mounted on the inner wall of the inverted mounting groove. An inverted pressure plate (842) is mounted on the upper end of the inverted plate (841). A pneumatic push rod (843) is symmetrically mounted on the lower middle part of the inverted plate (81) through the mounting seat. The telescopic end of the pneumatic push rod (843) slides through the inverted plate (81) and is fixedly connected to the inverted plate (841). Several guide rods (844) are also slidably mounted on the lower end of the inverted plate (81), and the upper ends of the several guide rods (844) are all fixedly connected to the inverted plate (841).

2. The hardware cover plate processing system based on a multi-segment positioning combination structure according to claim 1, characterized in that: The drive adjustment group (75) includes a dual-axis motor (751) mounted on the upper ends of the front and rear support frames (4) via motor mounts. The left and right conveying shafts of the dual-axis motor (751) are respectively fixedly connected to lead screws (752) with opposite rotation directions. The left and right lead screws (752) are respectively threaded onto the corresponding sliding seats (71).

3. The hardware cover plate processing system based on a multi-segment positioning combination structure according to claim 1, characterized in that: The drive adjustment group (75) also includes a limiting slide rod (753) symmetrically installed on the left side of the upper end of the machine base (1). The limiting slide rod (753) slides through the corresponding support frame (4). A second lead screw (754) is symmetrically installed on the right side of the upper end of the machine base (1). The second lead screw (754) is threaded to the corresponding support frame (4). The second lead screw (754) on the front and rear sides is connected by a transmission belt. A servo motor (755) that is connected to the second lead screw (754) is installed on the upper end of the machine base (1) through a motor mount.

4. The hardware cover plate processing system based on a multi-segment positioning combination structure according to claim 1, characterized in that: The lower end of the spiral plate (81) is symmetrically equipped with sliding blocks on both the left and right sides. Several sliding blocks are slidably sleeved on the corresponding upper slide rail (5). Support columns (51) are installed at the lower ends of several sliding blocks. Sliding blocks are also installed at the lower ends of the support columns (51). Several sliding blocks on the lower side are slidably sleeved on the corresponding lower slide rail (5).

5. The hardware cover plate processing system based on a multi-segment positioning combination structure according to claim 1, characterized in that: The upper end of the inner wall of the slag storage tank is symmetrically equipped with pneumatic push rods (61) on the left and right sides via mounting bases. The telescopic ends of the pneumatic push rods (61) are fixedly connected to the base plate (6), and several air blowing pipes (9) are installed on the inner walls of the front and rear ends of the slag storage tank corresponding to several electromagnetic platforms (83).

6. The hardware cover plate processing system based on a multi-segment positioning combination structure according to claim 4, characterized in that: The bottom plate (6) has clearance holes at the positions of two pneumatic push rods (843), several guide slide rods (844) and several support columns (51) at its upper end, and the bottom plate (6) is simultaneously slidably sleeved on the outer wall of several support columns (51).

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