Accurate workpiece positioning equipment of high-precision laser cutting machine

Abstract

The utility model provides accurate workpiece positioning equipment of a high-precision laser cutting machine, which comprises laser workbench equipment, linear guide rails are fixedly arranged above the laser workbench equipment, every two linear guide rails form a group, and each group of linear guide rails is provided with a single positioning carrier plate. Each positioning carrier plate is provided with mounting holes for mounting the positioning assemblies, and each positioning carrier plate is provided with at least one single positioning assembly; a plurality of supporting hand steel plates which are transversely distributed are clamped and embedded in the laser workbench equipment, and a plurality of rotating joints which are transversely distributed are mounted on the laser workbench equipment; the atomizing pipe generates a large amount of fine water mist, reciprocating motion is achieved through the reciprocating mechanism, the water mist coverage range is enlarged, slag is effectively cooled and solidified, and attachment is reduced. Meanwhile, the water mist forms a water film barrier on the surface of the hand supporting steel plate, and slag attachment is further prevented. In addition, the movable positioning carrier plate can flexibly drive the positioning assembly, the workpiece is accurately positioned and fixed, and the positioning flexibility and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser positioning technical field especially relates to a workpiece accurate positioning equipment of high accuracy laser cutting machine. BACKGROUND

[0002] In the field of laser cutting technology, the accurate positioning of workpiece products depends on a comprehensive system, the core of which is composed of a laser workbench and its supporting positioning components (such as positioning pins, positioning blocks and positioning clamps, etc. Precise elements) jointly build. The support hand steel plate (also known as support bar or support plate) in the laser workbench plays a crucial supporting role, which stably bears the workpiece to be cut, effectively resists the position deviation or damage caused by factors such as gravity and thermal deformation, although its direct function is not positioning, but as an indispensable auxiliary part in the accurate positioning process, the role of the support hand steel plate cannot be underestimated.

[0003] However, in practical operation, the laser cutting machine will release a large amount of heat energy when working at high intensity. These heat energy acts on the metal material rapidly, making it heat up sharply in a short time, even reaching the critical point of melting and even vaporization. In this process, the molten metal inevitably splashes around under the driving force of cutting force, a considerable part of which will deposit on the support hand steel plate of the tooling table. With the passage of time, a thick layer of metal slag gradually accumulates on the support hand steel plate, and these stubborn attachments not only have great difficulty in cleaning, but also seriously weaken the ability of the support hand steel plate to provide a stable support surface. As a result, the workpiece placed on it is difficult to maintain a flat state, which sets an obstacle for the accurate alignment achieved by relying on the positioning components, and lays hidden dangers for the precision and efficiency of the entire processing process.

[0004] Therefore, it is necessary to invent a workpiece accurate positioning equipment of high precision laser cutting machine. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a workpiece accurate positioning equipment of high precision laser cutting machine, which comprises a laser workbench equipment, a linear guide rail, a positioning carrier plate, a positioning component, a support hand steel plate and a rotary joint, the laser workbench equipment is fixedly installed with two linear guide rails which are a group, each group of linear guide rails is installed with a single positioning carrier plate, each positioning carrier plate is provided with mounting holes required for installing the positioning component, and each positioning carrier plate is installed with at least a single positioning component; the laser workbench equipment is provided with a plurality of transversely distributed support hand steel plates and a plurality of transversely distributed rotary joints.

[0006] Preferably, the positioning carrier plate is a rectangular steel plate structure, and the positioning component installed on the positioning carrier plate is used for limiting and positioning the product placed on the support hand steel plate.

[0007] Preferably, the linear guide is fixedly installed on the support frame of the laser worktable equipment. The linear guide is a screw linear actuator, and the support hand steel plate below the positioning plate does not interfere with it. The positioning plate moves linearly along the direction of the linear guide.

[0008] Preferably, the laser worktable includes a support frame, atomizing tubes, reciprocating gears, reciprocating racks, and reciprocating cylinders. A plurality of atomizing tubes arranged laterally are rotatably installed inside the support frame. One end of each atomizing tube rotatably passes through the support frame and is fixed to a corresponding reciprocating gear outside it. All of the reciprocating gears mesh with a single reciprocating rack slidably installed on the support frame. The reciprocating rack is fixed to the output end of a reciprocating cylinder fixedly installed on the support frame.

[0009] Preferably, the other end of each atomizing tube is connected to a corresponding rotary joint rotatably mounted on the support frame, and several rotary joints are connected to water supply pipes. The rotary joints are used to deliver coolant into the atomizing tube while allowing the rotary joints to move.

[0010] Preferably, a single support hand steel plate is provided between every two atomizing tubes, with the atomizing tubes located on the lower side of the support hand steel plate, and the movement of the support hand steel plate does not contact or interfere with the support hand steel plate.

[0011] Preferably, each of the atomizing tubes is provided with a plurality of atomizing nozzles, and the water mist sprayed by the atomizing nozzles is allowed to diffuse around the support hand steel plate and adhere to the surface of the support hand steel plate to form a water film.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This novel laser worktable device, with its superior atomization cooling system, demonstrates exceptional performance in high-precision laser cutting of metal workpieces. The device's atomizing tube generates a large amount of fine water mist, cleverly designed to diffuse widely in all directions. Driven by a reciprocating cylinder, its gear and rack mechanism (a combination of reciprocating gears and racks) allows the atomizing tube to reciprocate within a certain space, significantly expanding the water mist's coverage area. The water mist suspended in the air quickly captures and effectively disperses the heat released by the molten slag, causing it to cool and solidify rapidly, significantly reducing the probability of slag adhesion to the support plate. Simultaneously, some of the water mist forms a thin water film barrier on the support plate surface. This protective film further inhibits slag adhesion, effectively preventing the problem of workpiece flatness caused by slag accumulation, and laying a solid foundation for subsequent precise workpiece positioning.

[0014] Furthermore, this invention innovatively incorporates a movable positioning carrier plate. This plate can flexibly move various positioning components (including positioning pins, positioning blocks, and precision clamps) mounted on it precisely to the desired position, providing stable constraint and fixation for the workpiece. This design greatly enhances the flexibility and accuracy of positioning, ensuring the stability and precision of the workpiece during processing, and providing a strong guarantee for high-quality, high-efficiency laser cutting operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is another overall structural schematic diagram of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the laser worktable equipment of this utility model.

[0018] Figure 4 This is a utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0019] In the picture:

[0020] Laser worktable equipment 1. Support frame 11. Atomizing tube 12. Reciprocating gear 13. Reciprocating rack 14. Reciprocating cylinder 15. Atomizing nozzle 16. Linear guide rail 2. Positioning carrier plate 3. Positioning assembly 4. Support hand steel plate 5. Rotary joint 6. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides a workpiece precision positioning device for a high-precision laser cutting machine, including a laser worktable device 1, linear guide rails 2, positioning carrier plates 3, positioning components 4, support hand steel plates 5, and rotary joints 6. The linear guide rails 2 are fixedly installed in pairs on the top of the laser worktable device 1. Each pair of linear guide rails 2 is equipped with a single positioning carrier plate 3. Each positioning carrier plate 3 is provided with mounting holes for installing the positioning components 4. At least one positioning component 4 is installed on each positioning carrier plate 3. Several horizontally distributed support hand steel plates 5 are embedded in the laser worktable device 1, and several horizontally distributed rotary joints 6 are installed.

[0025] Furthermore, the positioning carrier plate 3 adopts a rectangular steel plate structure design, which is stable and durable. The positioning component 4 carefully installed on it is designed to restrict and accurately position the product placed on the support steel plate 5, ensuring that the workpiece remains stationary during processing, providing a solid guarantee for high-precision cutting operations. The positioning component 4 includes precision components such as positioning pins, positioning blocks, and positioning clamps.

[0026] Furthermore, the linear guide 2, as an important component of the laser worktable equipment 1, is firmly fixed on the support frame 11. It adopts a screw linear actuator design, which ensures that the positioning carrier plate 3 can move smoothly and accurately in a straight line along the direction of the linear guide 2 above it, while the support hand steel plate 5 below is completely undisturbed. The two work together without interfering with each other.

[0027] Furthermore, the laser stage device 1 includes a support frame 11, atomizing tubes 12, reciprocating gears 13, reciprocating racks 14, and reciprocating cylinders 15. Multiple laterally distributed atomizing tubes 12 are ingeniously rotatably mounted within the support frame 11. One end of each atomizing tube 12 passes through the support frame 11 and is fixedly connected to the external reciprocating gears 13. These reciprocating gears 13 collectively mesh with a reciprocating rack 14 slidably mounted on the support frame 11. The reciprocating rack 14 is tightly connected to the output end of the reciprocating cylinder 15, which is fixed on the support frame 11, forming a complete reciprocating motion system.

[0028] Furthermore, to ensure that coolant can be smoothly delivered into each atomizing tube 12, the other end of each atomizing tube 12 is connected to a rotary joint 6 rotatably mounted on the support frame 11. These rotary joints 6 are not only tightly connected to the water supply pipe, but also have the function of allowing the atomizing tube 12 to move while delivering coolant, thereby ensuring that the atomizing tube 12 can continuously receive coolant during reciprocating motion.

[0029] Furthermore, in the laser worktable device 1, a support hand plate 5 is cleverly placed between every two atomizing tubes 12. The atomizing tube 12 is located on the lower side of the support hand plate 5, and its movement trajectory does not interfere with the support hand plate 5. This design ensures that the atomizing tube 12 can fully spray water mist to cover the area around the support hand plate 5, while avoiding physical contact between the two, thus ensuring the stable operation of the equipment.

[0030] Furthermore, each atomizing tube 12 is densely covered with numerous atomizing nozzles 16. The fine water mist sprayed by these nozzles can quickly spread around the support hand steel plate 5 and adhere to its surface to form a uniform water film. This water film not only effectively prevents slag adhesion but also provides a more stable and flat support surface for the workpiece, further improving the accuracy and efficiency of laser cutting operations.

[0031] The working principle is as follows: First, the workpiece is placed on the support plate 5. The support plate 5 provides a stable and flat support surface for the workpiece, ensuring that it will not shake or shift during the cutting process. Then, through the screw linear actuator on the linear guide 2, the positioning carrier plate 3 begins to move smoothly and precisely in a straight line along the direction of the linear guide 2. The positioning component 4 on the positioning carrier plate 3 then precisely positions and restricts the workpiece placed on the support plate 5 according to the preset positioning parameters. In this way, the workpiece is firmly fixed on the support plate 5 and is in the optimal cutting position of the laser cutting machine.

[0032] Then, the laser worktable device 1 is started. Once started, the reciprocating cylinder 15 begins operation, pushing the reciprocating rack 14 to slide on the support frame 11. The sliding of the reciprocating rack 14 drives the rotation of the reciprocating gear 13 meshing with it, which in turn drives the reciprocating motion of the atomizing tube 12. Simultaneously with the reciprocating motion of the atomizing tube 12, numerous atomizing nozzles 16 on each atomizing tube 12 begin spraying fine water mist. This water mist quickly diffuses around the support hand steel plate 5 and adheres to its surface, forming a uniform water film. This water film, along with the water mist in the air, can quickly solidify the welding slag, effectively preventing molten slag generated during cutting from adhering to the workpiece or the support hand steel plate 5. It also provides a more stable and flat supporting environment for the workpiece, helping to improve the accuracy and efficiency of the cutting operation.

[0033] Finally, the laser cutting machine begins operation. The laser beam is focused into a high-power-density beam by optical devices and irradiates the surface of the workpiece. Under the action of the laser beam, the workpiece is rapidly melted, vaporized, or burned, while high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a kerf is eventually formed in the material, thus achieving the purpose of cutting.

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A workpiece precision positioning device for a high-precision laser cutting machine, characterized in that, The equipment includes a laser worktable (1), linear guides (2), positioning plates (3), positioning components (4), support hand plates (5), and rotary joints (6). The laser worktable (1) is fixedly installed with two linear guides (2) in pairs. Each set of linear guides (2) is equipped with a single positioning plate (3). Each positioning plate (3) is provided with mounting holes for installing the positioning components (4). Each positioning plate (3) is equipped with at least one positioning component (4). The laser worktable (1) is fitted with several horizontally distributed support hand plates (5) and has several horizontally distributed rotary joints (6).

2. The workpiece precise positioning device for a high-precision laser cutting machine as described in claim 1, characterized in that: The positioning carrier plate (3) is a rectangular steel plate structure. The positioning component (4) installed on the positioning carrier plate (3) is used to restrict and position the product placed on the support hand steel plate (5).

3. The workpiece precise positioning device for a high-precision laser cutting machine as described in claim 2, characterized in that: The linear guide (2) is fixedly installed on the support frame (11) of the laser worktable equipment (1). The linear guide (2) is a screw linear actuator. The support hand steel plate (5) below the positioning carrier plate (3) does not interfere. The positioning carrier plate (3) moves linearly along the direction of the linear guide (2).

4. The workpiece precise positioning device for a high-precision laser cutting machine as described in claim 3, characterized in that: The laser worktable device (1) includes a support frame (11), atomizing tubes (12), reciprocating gears (13), reciprocating racks (14), and reciprocating cylinders (15). Several atomizing tubes (12) arranged laterally are rotatably installed inside the support frame (11). One end of each atomizing tube (12) rotatably passes through the support frame (11) and is fixed to the corresponding reciprocating gear (13) outside it. The numerous reciprocating gears (13) mesh with a single reciprocating rack (14) that is slidably installed on the support frame (11). The reciprocating rack (14) is fixed to the output end of the reciprocating cylinder (15) that is fixedly installed on the support frame (11).

5. The workpiece precise positioning device for a high-precision laser cutting machine as described in claim 4, characterized in that: The other end of each atomizing tube (12) is connected to a corresponding rotary joint (6) rotatably mounted on the support frame (11). Several rotary joints (6) are connected to water supply pipes. The rotary joints (6) are used to deliver coolant into the atomizing tube (12) while allowing the rotary joints (6) to move.

6. The workpiece precise positioning device for a high-precision laser cutting machine as described in claim 5, characterized in that: A single support hand plate (5) is provided between every two atomizing tubes (12), with the atomizing tube (12) located on the lower side of the support hand plate (5), and the movement of the support hand plate (5) does not contact or interfere with the support hand plate (5).

7. The workpiece precise positioning device for a high-precision laser cutting machine as described in claim 6, characterized in that: Each of the atomizing tubes (12) is provided with a number of atomizing nozzles (16), and the water mist sprayed by the atomizing nozzles (16) is allowed to diffuse around the support hand steel plate (5) and adhere to the surface of the support hand steel plate (5) to form a water film.

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