Plate positioning device of laser cutting machine

Abstract

The utility model relates to the technical field of laser cutting machines, in particular to a plate positioning device of a laser cutting machine, which comprises an equipment table, a plurality of sawtooth blades are arranged in the middle of the equipment table in a matched manner, two moving plates are transversely arranged at the bottom of the equipment table, two ends of each moving plate are slidably connected with the equipment table, and the moving plates are provided with moving mechanisms in a matched manner. Strip-shaped plates are arranged on the upper sides of the two movable plates in parallel, the width of each strip-shaped plate is smaller than the gap between the two sawtooth pieces, lifting mechanisms are arranged between the movable plates and the strip-shaped plates, and clamping mechanisms are arranged on the strip-shaped plates. According to the utility model, a workpiece plate can be clamped and positioned, meanwhile, the effect of flattening and positioning the workpiece plate is achieved, and the cutting and processing quality of the workpiece plate is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, and in particular to a plate positioning device for a laser cutting machine. Background Technology

[0002] Laser cutting machines cut sheet metal using laser light. When a laser beam irradiates the material, it quickly heats the material to its vaporization temperature, causing it to evaporate and form holes. As the laser beam moves across the material, and with the help of gases such as carbon dioxide, oxygen, and nitrogen blowing away the molten residue, a narrow kerf is continuously formed, completing the cutting of the sheet metal. Currently, laser cutting machines typically place the sheet metal directly onto several saw blades on the device, lacking a mechanism for effective sheet metal positioning. If the saw blades are damaged during cutting, the corresponding damaged saw blades on the bottom of the sheet metal often lack proper support, resulting in uneven placement and affecting the subsequent cutting results.

[0003] To address this issue, we propose a plate positioning device for a laser cutting machine. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plate positioning device for a laser cutting machine.

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

[0006] A plate positioning device for a laser cutting machine includes a machine table, a plurality of saw blades are matched in the middle of the machine table, two movable plates are arranged horizontally at the bottom of the machine table, both ends of the two movable plates are slidably connected to the machine table, and the movable plates are matched with a moving mechanism, and strip plates are arranged parallel to each other on the upper side of the two movable plates.

[0007] The width of the strip plate is less than the gap between the two saw blades. A lifting mechanism is provided between the moving plate and the strip plate, and a clamping mechanism is provided on the strip plate.

[0008] Preferably, a crossbeam is provided on the upper side of the equipment platform, and a laser cutting head is provided on the crossbeam.

[0009] Preferably, the moving mechanism includes a driving gear and a driven gear, which are rotatably connected to the bottom of both ends of the moving plate, and racks are horizontally fixed on both sides of the bottom of the equipment platform. The driving gear and the driven gear are respectively meshed with the two racks.

[0010] Preferably, a first gear and a second gear are rotatably connected at the bottom center of the movable plate. The first gear and the second gear mesh and match. Both the first gear and the second gear are coaxially fixed with transmission pulleys. The driving gear is coaxially fixed with a driving pulley, and the driven gear is coaxially fixed with a driven pulley. The driving pulley is connected to the transmission pulley of the first gear through a first belt drive, and the driven pulley is connected to the transmission pulley of the second gear through a second belt drive.

[0011] Preferably, a bracket is fixed to the bottom of the movable plate, and a motor is fixedly installed at the bottom of the bracket. The motor is coaxially and fixedly connected to the drive gear through a transmission shaft.

[0012] Preferably, the lifting mechanism includes two vertically arranged electric telescopic rods, which are symmetrically fixed on the upper side of the middle of the moving plate, and the telescopic ends of the two electric telescopic rods are fixedly connected to the bottom of the strip plate.

[0013] Preferably, the clamping mechanism includes two horizontally arranged cylinders, which are symmetrically fixed at both ends of the bottom of the strip plate. The extension and retraction ends of the two cylinders are arranged opposite to each other, and each extension and retraction end of the two cylinders is fixed with a clamping block. The bottom of the clamping block is provided with a through hole that matches the strip plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, by setting two movable plates and corresponding lifting strip plates, and setting clamping blocks for clamping, can realize the clamping and positioning operation of workpiece plates. At the same time, the two strip plates can lift the two ends of the workpiece plates, and the corresponding two clamping blocks can clamp the workpiece plates, thereby achieving positioning and flat positioning of the workpiece plates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is the first axonometric drawing of this utility model;

[0018] Figure 2 This is the second axonometric drawing of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the movable plate of this utility model;

[0021] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0022] Figure 6 for Figure 4 A magnified view of a section at point B in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of the strip plate of this utility model;

[0024] Figure 8 for Figure 7 A magnified view of a section at point C;

[0025] Figure 9 for Figure 7 A magnified view of a section at point D.

[0026] In the diagram: 1. Equipment platform; 2. Saw blade; 3. Moving plate; 4. Strip plate; 5. Crossbeam; 6. Driving gear; 7. Driven gear; 8. Rack; 9. First gear; 10. Second gear; 11. Transmission pulley; 12. Driving pulley; 13. Driven pulley; 14. Support; 15. Motor; 16. Electric telescopic rod; 17. Cylinder; 18. Clamping block; 19. Through hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 this utility model.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A sheet metal positioning device for a laser cutting machine includes a machine platform 1, which is the main body of the laser cutting machine. Several saw blades 2 are fitted in the middle of the machine platform 1, and the upper part of the saw blades 2 is used to support and place the workpiece sheet metal, as detailed below. Figure 1As shown. Two movable plates 3 are horizontally arranged at the bottom of the equipment platform 1. Both ends of the two movable plates 3 are slidably connected to the equipment platform 1, and each movable plate 3 is equipped with a moving mechanism; that is, each end of the movable plate 3 has a slider, and the equipment platform 1 has a slide rail that matches the slider. A strip plate 4 is arranged parallel to the upper side of the two movable plates 3. The width of the strip plate 4 is smaller than the gap between the two saw blades 2. A lifting mechanism is provided between the movable plates 3 and the strip plate 4, allowing the strip plate 4 to move up and down and pass between the two saw blades 2. A clamping mechanism is provided on the strip plate 4 for clamping the workpiece plate.

[0030] As a technical optimization of this utility model, a crossbeam 5 is provided on the upper side of the equipment platform 1, and a laser cutting head is provided on the crossbeam 5.

[0031] As those skilled in the art will know from the above example, when implementing the above technical solution, the saw blade 2 can support the workpiece plate while ensuring that the position of the workpiece plate does not move and can prevent the workpiece plate from being burned by the laser.

[0032] For the above example, those skilled in the art should know that when implementing the above technical solution, the crossbeam 5 can move horizontally along the Y-axis, and the corresponding laser cutting head can move horizontally along the X-axis and vertically along the Z-axis on the crossbeam 5.

[0033] As will be known to those skilled in the art regarding the above examples, when implementing the above technical solutions, the laser cutting head can emit a laser beam to achieve the cutting operation of the workpiece sheet.

[0034] As a technical optimization of this utility model, the moving mechanism includes a driving gear 6 and a driven gear 7, which are rotatably connected to the bottom ends of the moving plate 3. Racks 8 are horizontally fixed to both sides of the bottom of the equipment platform 1, and the driving gear 6 and driven gear 7 mesh with the two racks 8 respectively. The rotation of the driving gear 6 and driven gear 7 acts on the racks 8, thereby driving the moving plate 3 to move.

[0035] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9The first gear 9 and the second gear 10 are rotatably connected at the bottom center of the movable plate 3. The first gear 9 and the second gear 10 are meshed and matched. The first gear 9 and the second gear 10 are both coaxially fixed with a transmission pulley 11. The driving gear 6 is coaxially fixed with a driving pulley 12. The driven gear 7 is coaxially fixed with a driven pulley 13. The driving pulley 12 and the transmission pulley 11 of the first gear 9 are connected by a first belt drive. The driven pulley 13 and the transmission pulley 11 of the second gear 10 are connected by a second belt drive. The rotation of the driving gear 6 drives the driving pulley 12 to rotate, which in turn drives the corresponding transmission pulley 11 to rotate via the first belt. The transmission pulley 11 then drives the corresponding first gear 9 to rotate, which in turn drives the second gear 10 to rotate. The first gear 9 and the second gear 10 rotate in opposite directions. The rotation of the second gear 10 then drives the corresponding transmission pulley 11 to rotate, which in turn drives the driven pulley 13 to rotate via the second belt. The driven pulley 13 then drives the driven gear 7 to rotate. In other words, the rotation of the driving pulley 12 drives the driven gear 7 to rotate. Due to the rotation effect of the first gear 9 and the second gear 10, the driving pulley 12 and the driven gear 7 rotate in opposite directions. The driving pulley 12 and the driven gear 7 mesh with the racks 8 on both sides, thus achieving the effect of driving the moving plate 3 to move in the same direction at both ends and as a whole.

[0036] As a technical optimization of this utility model, a bracket 14 is fixed to the bottom of the movable plate 3, and a motor 15 is fixedly installed at the bottom of the bracket 14. The motor 15 is coaxially and fixedly connected to the drive gear 6 through a transmission shaft. The motor 15 can precisely drive the drive gear 6 to rotate, including forward and reverse rotation.

[0037] For the above example, those skilled in the art should know that when implementing the above technical solution, the drive gear 6 is not limited to being driven by a motor 15, but can also be coaxially mounted with a rocker arm, and the rotation operation of the drive gear 6 can be achieved by manually turning the rocker arm.

[0038] As a technical optimization of this utility model, the lifting mechanism includes two vertically arranged electric telescopic rods 16. The two electric telescopic rods 16 are symmetrically fixed on the upper side of the middle of the moving plate 3, and the telescopic ends of the two electric telescopic rods 16 are fixedly connected to the bottom of the strip plate 4. The two electric telescopic rods 16 serve to support the strip plate 4, and at the same time, they also serve to control the lifting and moving of the strip plate 4, enabling precise lifting and moving operations of the strip plate 4.

[0039] As a technical optimization of this utility model, the clamping mechanism includes two horizontally arranged cylinders 17, which are symmetrically fixed at both ends of the bottom of the strip plate 4. The telescopic ends of the two cylinders 17 are arranged opposite to each other, and each telescopic end of the two cylinders 17 is fixed with a clamping block 18. The bottom of the clamping block 18 is provided with a through hole 19 that matches the strip plate 4, and the through hole 19 restricts the sliding movement of the clamping block 18. The two cylinders 17 can be started synchronously, driving the two clamping blocks 18 to move closer or in opposite directions. The closer movement of the two clamping blocks 18 can perform a clamping operation on the workpiece plate.

[0040] In this invention, the working principle of the device is as follows:

[0041] Before cutting the sheet metal, the workpiece sheet is first supported and placed above several saw blades 2. Two movable plates 3 are then moved so that they correspond to the two end edges of the workpiece sheet. Next, two strip plates 4 are raised, allowing the movable plates 3 to move precisely and fit against the underside of the workpiece sheet. Two clamping blocks 18 on the strip plates 4 then clamp the edges of the workpiece sheet, achieving clamping and positioning. Simultaneously, if some saw blades 2 suffer damage during prolonged cutting, resulting in an uneven workpiece sheet, the two strip plates 4 can be used to lift both ends of the workpiece sheet, and the corresponding clamping blocks 18 can hold the workpiece sheet. With the two strip plates 4 aligned, the workpiece sheet is horizontally supported, achieving both positioning and flattening, effectively ensuring the quality of the workpiece sheet cutting process.

[0042] In the above operation, the movement of the movable plate 3 is driven and controlled by the starter motor 15. That is, the motor 15 starts and precisely drives the drive gear 6 to rotate. The rotation of the drive gear 6 drives the drive pulley 12 to rotate. The drive pulley 12 drives the corresponding transmission pulley 11 to rotate through the first belt. The transmission pulley 11 drives the corresponding first gear 9 to rotate. The first gear 9 drives the second gear 10 to rotate. The first gear 9 and the second gear 10 rotate in opposite directions. The rotation of the second gear 10 drives the corresponding transmission pulley 11 to rotate. The transmission pulley 11 drives the driven pulley 13 to rotate through the second belt. The driven pulley 13 drives the driven gear 7 to rotate. That is, the rotation of the drive pulley 12 drives the driven gear 7 to rotate. And through the rotation effect of the first gear 9 and the second gear 10, the rotation directions of the drive pulley 12 and the driven gear 7 are opposite. The drive pulley 12 and the driven gear 7 mesh and match with the racks 8 on both sides, so as to achieve the effect of driving the two ends and the whole of the movable plate 3 to move in the same direction.

[0043] In the above operation, the two electric telescopic rods 16 are activated to control the precise lifting and lowering of the corresponding strip plate 4, while the two cylinders 17 are activated synchronously and drive the two clamping blocks 18 to move closer or in opposite directions. The two clamping blocks 18 moving closer can clamp the workpiece plate.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plate positioning device for a laser cutting machine, comprising a machine table (1), characterized in that, The equipment platform (1) is provided with several saw blades (2) in the middle. Two movable plates (3) are provided horizontally at the bottom of the equipment platform (1). Both ends of the two movable plates (3) are slidably connected to the equipment platform (1). The movable plates (3) are provided with a moving mechanism. The upper side of the two movable plates (3) is provided with a strip plate (4) in parallel. The width of the strip plate (4) is less than the gap between the two saw blades (2). A lifting mechanism is provided between the moving plate (3) and the strip plate (4). A clamping mechanism is provided on the strip plate (4).

2. The plate positioning device for a laser cutting machine according to claim 1, characterized in that, The equipment platform (1) is provided with a horizontal beam (5) on its upper side, and a laser cutting head is provided on the horizontal beam (5).

3. The plate positioning device for a laser cutting machine according to claim 1, characterized in that, The moving mechanism includes a driving gear (6) and a driven gear (7). The driving gear (6) and the driven gear (7) are rotatably connected to the bottom of both ends of the moving plate (3). Racks (8) are horizontally fixed on both sides of the bottom of the equipment platform (1). The driving gear (6) and the driven gear (7) mesh with the two racks (8) respectively.

4. The plate positioning device for a laser cutting machine according to claim 3, characterized in that, The bottom center of the movable plate (3) is rotatably connected to the first gear (9) and the second gear (10). The first gear (9) and the second gear (10) mesh and match. The first gear (9) and the second gear (10) are both coaxially fixed with transmission pulleys (11). The driving gear (6) is coaxially fixed with a driving pulley (12). The driven gear (7) is coaxially fixed with a driven pulley (13). The driving pulley (12) is connected to the transmission pulley (11) of the first gear (9) through a first belt drive. The driven pulley (13) is connected to the transmission pulley (11) of the second gear (10) through a second belt drive.

5. A plate positioning device for a laser cutting machine according to claim 4, characterized in that, The bottom of the movable plate (3) is fixed with a bracket (14), and a motor (15) is fixedly installed at the bottom of the bracket (14). The motor (15) is coaxially fixedly connected to the drive gear (6) through a transmission shaft.

6. The plate positioning device for a laser cutting machine according to claim 1, characterized in that, The lifting mechanism includes two vertically arranged electric telescopic rods (16), which are symmetrically fixed on the upper side of the middle part of the moving plate (3), and the telescopic ends of the two electric telescopic rods (16) are fixedly connected to the bottom of the strip plate (4).

7. The plate positioning device for a laser cutting machine according to claim 1, characterized in that, The clamping mechanism includes two horizontally arranged cylinders (17), which are symmetrically fixed at both ends of the bottom of the strip plate (4). The extension and retraction ends of the two cylinders (17) are arranged opposite to each other, and each extension and retraction end of the two cylinders (17) is fixed with a clamping block (18). The bottom of the clamping block (18) is provided with a through hole (19) that matches the strip plate (4).

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