A portable laser cutting device

Abstract

This invention discloses a portable laser cutting device, relating to the field of laser cutting equipment. It includes an electrical control chassis and a cutting host. The cutting host is equipped with a cutting mechanism, and positioning mechanisms are symmetrically installed on the front and rear sides of the cutting host. The cutting host also includes a limiting mechanism and a control mechanism. The positioning mechanism includes a rotating shaft, which is bearing-connected to the cutting host. A scale rod is fixed to the upper end of the rotating shaft, and a movable frame is slidably connected to the scale rod. A limiting tooth block is fixed to the movable frame, and a limiting bracket is provided on the lower side of the movable frame. This portable laser cutting device employs a foldable and retractable positioning and guiding mechanism. During workpiece cutting, the cutting width can be controlled by adjusting the position of the limiting bracket. The limiting bracket, in conjunction with the sliding contact between the limiting bracket and the side of the workpiece, achieves guiding positioning, thereby ensuring the straightness of the cutting line and thus guaranteeing cutting accuracy, while effectively improving the ease of operation of the device.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, specifically a portable laser cutting device. Background Technology

[0002] Laser cutting involves focusing a laser beam emitted from a laser source into a laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point. At the same time, 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, the cutting purpose is achieved. It is widely used in the processing of metal workpieces.

[0003] Existing portable laser cutting equipment, such as the portable laser cutting machine disclosed in CN216264119U, includes a cutting machine body, a pressure plate at the bottom of the cutting machine body, a laser emitter at the front of the lower end of the cutting machine body, a protective plate covering the upper end of the laser emitter, a handle at the upper end of the cutting machine body, a switch at the lower end of the handle, an air inlet at the front end of the cutting machine body, an exhaust pipe at the back of the cutting machine body, a blower inside the cutting machine body, and an observation device on the side end of the cutting machine body. The observation device consists of a suspension rod, a mounting bracket, a reflector, and a wing nut. The reflector is mounted on the mounting bracket, and the mounting bracket is mounted on the lower end of the suspension rod. This invention, by providing an observation device on the side end of the cutting machine body, facilitates observation of the cutting point of the cutting machine through a reflector, thereby greatly improving the cutting accuracy of the cutting machine.

[0004] In actual use, the existing portable laser cutting equipment requires manual hand-held cutting. When straight cutting is required, the existing portable laser cutting equipment lacks a guiding and positioning mechanism, which makes it difficult to ensure straight cuts during manual hand-held cutting, thus affecting the processing progress of the workpiece. Summary of the Invention

[0005] The purpose of this invention is to provide a portable laser cutting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable laser cutting device, comprising an electrical control chassis and a cutting host, wherein a cutting mechanism is installed on the cutting host, and positioning mechanisms are symmetrically installed on the front and rear sides of the cutting host. A limiting mechanism and a control mechanism are also installed on the cutting host. The positioning mechanism includes a rotating shaft, which is bearing-connected to the cutting host. A scale rod is fixed to the upper end of the rotating shaft, and a movable frame is slidably connected to the scale rod. A limiting tooth block is fixed to the movable frame. A limiting frame is provided on the lower side of the movable frame, and the lower end face of the limiting frame is lower than the lower end face of the ball bearing. Sliding rods are symmetrically fixed to the left and right sides of the limiting frame, and the sliding rods are slidably connected to the movable frame. One end of the limiting frame is fixed to one end of a first spring, and the other end of the first spring is fixed to the movable frame.

[0007] Preferably, a cable tie is fixed to the front of the electrical control box, and a heat dissipation vent is provided on the left side of the electrical control box. The cable tie can be used to conveniently store and limit the wires.

[0008] Preferably, the upper end face of the cutting host is fixed with a handle and a control switch is installed on the handle. The lower end face of the cutting host is equipped with a rolling ball and a controller is also installed on the cutting host. Through the rolling action of the ball, the friction between the cutting host and the workpiece can be reduced, making it easier to move the cutting host.

[0009] Preferably, the cutting mechanism includes an electric telescopic rod, which is electrically connected to the controller. The electric telescopic rod is fixed inside the cutting host, and its output end is fixed to the movable plate. A positioning shaft is fixed on the movable plate, and the positioning shaft engages with a circular hole on the circular plate to achieve positioning. The electric telescopic rod provides a basic force for the movement of the movable plate and the positioning shaft. Combined with the engagement positioning between the positioning shaft and the circular hole on the circular plate, it can achieve the function of preventing accidental activation.

[0010] Preferably, a crossbar is fixed on the left side of the movable plate, and the crossbar is slidably connected to the partition. The partition is fixed inside the cutting host. When the movable plate moves, the sliding guide effect between the crossbar and the partition can ensure the stability of the movable plate's movement.

[0011] Preferably, a mounting plate is fixed on the crossbar, and a laser cutting head is fixed on the lower end face of the mounting plate. The laser cutting head is connected to the electrical control box via a wire, and the laser cutting head is electrically connected to the control switch. A baffle is fixed on the left side of the mounting plate, and rubber pads are symmetrically fixed on the top and bottom of the baffle. Through the function of the baffle, the laser cutting head can be shielded and protected after the device is used to prevent workers from accidentally touching it and getting burned.

[0012] Preferably, a first magnet is fixed on the side of the scale rod closest to the cutting host, and the first magnet and a third magnet fixed on the cutting host form a magnetic attraction structure. A second magnet is fixed on the side of the scale rod furthest from the cutting host, and the second magnet and a fourth magnet fixed on the cutting host form a magnetic attraction structure.

[0013] Preferably, the limiting mechanism includes a connecting frame, one end of which is fixed to the circular plate and slidably connected to the cutting host. The other end of the connecting frame is fixed to the movable ring, and a ball shaft is nested and slidably connected to the movable ring. The ball shaft is slidably connected to the scale rod and fixed to the limiting rack. The limiting rack is slidably connected to the scale rod. The limiting rack engages with the limiting tooth block to achieve a positioning function. Through the engagement and positioning function between the limiting rack and the limiting tooth block, the movable frame can be locked to ensure the accuracy of cutting.

[0014] Preferably, a fixing frame is also fixed on the movable ring, and a locking block is fixed on the fixing frame. The locking block is nested with the lower opening of the rotating shaft to achieve positioning. Through the nesting positioning effect of the locking block and the lower opening of the rotating shaft, the rotating shaft can be locked to prevent the rotating shaft from rotating during the cutting process.

[0015] Preferably, the control mechanism includes a pull rod, which is slidably connected to the cutting host, and a pressure rod is fixed at the upper end of the pull rod. The distance between the pressure rod and the control switch is 1cm-2cm. A circular plate is fixed on the pressure rod, and a second spring is fixed between the circular plate and the cutting host. Through the above structure, the control and start-up function of the device can be realized. With the elasticity of the second spring, a basic force can be provided for the automatic reset of the pull rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This portable laser cutting equipment adopts a foldable and retractable positioning and guiding mechanism. When cutting a workpiece, the cutting width can be controlled by adjusting the position of the limiting frame. The limiting frame slides against the side of the workpiece to achieve guiding and positioning, thereby ensuring the straightness of the cutting line and thus ensuring cutting accuracy, and effectively improving the ease of operation of the device.

[0018] 2. This portable laser cutting equipment employs a linkage-based self-locking mechanism. When the device starts cutting the workpiece, the positioning frame is achieved by engaging the limiting rack and limiting block. Combined with the nesting of the locking block and the rotating shaft, the angle positioning of the scale rod is achieved, preventing the limiting frame or scale rod from shifting during cutting. This effectively ensures the stability of the device during operation and, consequently, the cutting accuracy.

[0019] 3. This portable laser cutting equipment adopts a retractable cutting mechanism, which can store and protect the laser cutting head after cutting, avoiding the problem of workers accidentally touching the laser cutting head and getting burned. After the laser cutting head is stored, the locking action between the positioning shaft and the circular plate can position the circular plate, thereby achieving self-locking of the pull rod, which can prevent the device from being accidentally opened and ensure the safety of the device. Attached Figure Description

[0020] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention;

[0021] Figure 2 This is a bottom-view perspective view of the cutting host structure of the present invention;

[0022] Figure 3 This is a frontal cross-sectional three-dimensional structural diagram of the cutting host of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the positioning shaft and the circular plate in the separated state of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the positioning mechanism and control mechanism of the present invention;

[0025] Figure 6 This is a three-dimensional cross-sectional view of the movable frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the limiting mechanism and the scale rod of the present invention.

[0027] In the diagram: 1. Electrical control chassis; 101. Cable tie; 102. Heat dissipation vent; 2. Cutting main unit; 201. Handle; 202. Control switch; 204. Controller; 203. Ball bearing; 3. Cutting mechanism; 301. Electric telescopic rod; 302. Movable plate; 303. Positioning shaft; 304. Crossbar; 305. Partition; 306. Mounting plate; 307. Laser cutting head; 308. Baffle; 309. Rubber pad; 4. Positioning mechanism; 401. Rotating shaft; 402. Scale rod; 403. First magnet; 404. Second magnet; 405. Third magnet; 406. Fourth magnet; 407. Movable frame; 408. Limiting tooth block; 409. Limiting frame; 410. Slide rod; 411. First spring; 5. Limiting mechanism; 501. Connecting frame; 502. Movable ring; 503. Ball shaft; 504. Limiting rack; 505. Fixed frame; 506. Locking block; 6. Control mechanism; 601. Pull rod; 602. Pressure rod; 603. Circular plate; 604. Second spring. Detailed Implementation

[0028] 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 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 are within the scope of protection of the present invention.

[0029] Please see Figures 1-7 This invention provides a technical solution: a portable laser cutting device, including an electrical control box 1 and a cutting host 2. A cutting mechanism 3 is installed on the cutting host 2. A positioning mechanism 4 is symmetrically installed on the front and back sides of the cutting host 2. A limiting mechanism 5 and a control mechanism 6 are also installed on the cutting host 2. The positioning mechanism 4 includes a rotating shaft 401, which is bearing-connected to the cutting host 2. A scale rod 402 is fixed to the upper end of the rotating shaft 401. A movable frame 407 is slidably connected to the scale rod 402. A limiting tooth block 408 is fixed to the movable frame 407. A limiting frame 409 is provided on the lower side of the movable frame 407, and the lower end face of the limiting frame 409 is lower than the lower end face of the ball 203. A sliding rod 410 is symmetrically fixed on the left and right sides of the limiting frame 409, and the sliding rod 410 is slidably connected to the movable frame 407. One end of the limiting frame 409 is fixed to one end of a first spring 411, and the other end of the first spring 411 is fixed to the movable frame 407.

[0030] A cable tray 101 is fixed on the front side of the electrical control box 1, and a heat dissipation vent 102 is provided on the left side of the electrical control box 1; a handle 201 is fixed on the upper end face of the cutting host 2, and a control switch 202 is installed on the handle 201; a rolling ball 203 is installed on the lower end face of the cutting host 2, and a controller 204 is also installed on the cutting host 2.

[0031] When using this portable laser cutting equipment, such as Figures 1-7As shown, firstly, the cutting host 2 is placed on the workpiece to be cut, and the scale rod 402 is rotated 90°. At this time, the first magnet 403 and the third magnet 405 separate, and the second magnet 404 and the fourth magnet 406 attract each other, so that the scale rod 402 and the cutting host 2 are in a perpendicular state. Then, the limiting frame 409 is moved to contact the edge of the workpiece, and at this time, the first spring 411 is in a contracted state, so that there is a certain pressure between the limiting frame 409 and the workpiece. The distance between the limiting frame 409 and the laser cutting head 307 is adjusted according to the required cutting width. With the sliding action between the movable frame 407 and the scale rod 402, the position of the limiting frame 409 can be adjusted. With the scale line on the scale rod 402, the distance between the limiting frame 409 and the laser cutting head 307 can be determined, thereby realizing the positioning adjustment. In the subsequent cutting process, the sliding guide action between the limiting frame 409 and the edge of the workpiece can guide the laser cutting head 307, ensuring that the laser cutting head 307 moves in a straight line.

[0032] The cutting mechanism 3 includes an electric telescopic rod 301, which is electrically connected to the controller 204. The electric telescopic rod 301 is fixed inside the cutting host 2, and its output end is fixed to the movable plate 302. A positioning shaft 303 is fixed on the movable plate 302, and the positioning shaft 303 engages with a circular hole on the circular plate 603 to achieve positioning. A crossbar 304 is fixed on the left side of the movable plate 302, and the crossbar 304 is slidably connected to the partition plate 305, which is fixed inside the cutting host 2. A mounting plate 306 is fixed on the crossbar 304, and a laser cutting head 307 is fixed on the lower end face of the mounting plate 306. The laser cutting head 307 is connected to the electrical control box 1 via a wire, and is electrically connected to the control switch 202. The left side of the mounting plate 306... A baffle 308 is fixed, and rubber pads 309 are symmetrically fixed on the baffle 308. A first magnet 403 is fixed on the side of the scale rod 402 near the cutting host 2, and the first magnet 403 and the third magnet 405 fixed on the cutting host 2 form a magnetic attraction structure. A second magnet 404 is fixed on the side of the scale rod 402 away from the cutting host 2, and the second magnet 404 and the fourth magnet 406 fixed on the cutting host 2 form a magnetic attraction structure. The control mechanism 6 includes a pull rod 601, which is slidably connected to the cutting host 2. A pressure rod 602 is fixed at the upper end of the pull rod 601, and the distance between the pressure rod 602 and the control switch 202 is 1cm-2cm. A circular plate 603 is fixed on the pressure rod 602, and a second spring 604 is fixed between the circular plate 603 and the cutting host 2.

[0033] After adjusting the cutting width, when cutting, such as... Figures 1-7As shown, the electric telescopic rod 301 is extended by the controller 204, thereby moving the movable plate 302 and the positioning shaft 303. When the positioning shaft 303 separates from the circular hole on the circular plate 603, the limiting effect on the circular plate 603 is released. When the movable plate 302 moves, it simultaneously drives the crossbar 304, the mounting plate 306, the laser cutting head 307, and the baffle 308 to move, so that the laser cutting head 307 moves out of the cutting host 2 for cutting operation, until the movable plate 302 contacts the partition 305. At this time, the removal operation of the laser cutting head 307 is completed. After the laser cutting head 307 is removed, the pull rod 601 is pulled to move, at which time the second spring 604 is compressed. When the pressure rod 602 presses the control switch 202, the control switch 202 controls the laser cutting head 307 to start, thereby realizing the cutting and processing of the workpiece. After the cutting is completed, the pull rod 601 is released, and the second spring 604 is compressed. Under the action of 604, the pull rod 601 and the pressure rod 602 automatically reset. According to the above principle, after the laser cutting head 307 finishes cutting, the electric telescopic rod 301 can be controlled to retract, which can realize the storage of the laser cutting head 307. With the shielding and protection of the baffle 308, the laser cutting head 307 can be prevented from being damaged by bumps and the problem of workers accidentally touching the laser cutting head 307 and getting burned can be prevented. After the laser cutting head 307 is reset, the positioning shaft 303 and the round hole on the round plate 603 are just engaged, thereby locking the pull rod 601 and preventing workers from accidentally activating the device. After the pressure rod 602 is reset, since the distance between the pressure rod 602 and the control switch 202 is 1cm-2cm, the distance is small, and it is difficult for workers to put their fingers between the pressure rod 602 and the control switch 202 to press the control switch 202, thereby further realizing the anti-accidental touch function.

[0034] The limiting mechanism 5 includes a connecting frame 501. One end of the connecting frame 501 is fixed to the circular plate 603, and the connecting frame 501 is slidably connected to the cutting host 2. The other end of the connecting frame 501 is fixed to the movable ring 502. Meanwhile, a ball shaft 503 is nested and slidably connected on the movable ring 502. The ball shaft 503 is slidably connected to the scale rod 402, and the ball shaft 503 is fixed on the limiting rack 504. The limiting rack 504 is slidably connected to the scale rod 402, and the limiting rack 504 engages with the limiting tooth block 408 to achieve positioning. A fixing frame 505 is also fixed on the movable ring 502, and a locking block 506 is fixed on the fixing frame 505. The locking block 506 is nested with the lower opening of the rotating shaft 401 to achieve positioning.

[0035] When the lever 601 is pulled to start the cutting device, such as Figures 1-7As shown, the pull rod 601 moves upward, synchronously driving the circular plate 603 to move, thereby driving the connecting frame 501, the movable ring 502, the ball shaft 503, and the limiting rack 504 to move upward. When the pressure rod 602 contacts the control switch 202 to press, the limiting rack 504 engages with the limiting tooth block 408 to achieve positioning, thereby locking the movable frame 407 and the limiting frame 409, preventing the limiting frame 409 from shifting during the cutting process and affecting the cutting accuracy. Furthermore, when the movable ring 502 moves upward, it synchronously drives the fixed frame 501... When the lever 602 contacts the control switch 202 and is pressed, the lever 506 and the lower opening of the rotating shaft 401 are perfectly nested to achieve positioning, thereby locking the angle of the scale lever 402 and preventing the scale lever 402 from rotating during cutting, thus further ensuring the cutting accuracy of the workpiece. After cutting is completed, when the lever 601 is released, the locking of the scale lever 402 and the movable frame 407 can be released simultaneously, facilitating subsequent adjustments. This is the working principle of this portable laser cutting equipment.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A portable laser cutting device, comprising an electrical control chassis (1) and a cutting host (2), characterized in that: The cutting host (2) is equipped with a cutting mechanism (3). Positioning mechanisms (4) are symmetrically installed on the front and back sides of the cutting host (2). The cutting host (2) is also equipped with a limit mechanism (5) and a control mechanism (6). The positioning mechanism (4) includes a rotating shaft (401), which is bearing-connected to the cutting host (2). Rollable balls (203) are installed on the lower end face of the cutting host (2). A controller (204) is also installed on the cutting host (2). A scale rod (402) is fixed to the upper end of the rotating shaft (401). The scale rod (402) has... A movable frame (407) is slidably connected, and a limiting tooth block (408) is fixed on the movable frame (407). A limiting frame (409) is provided on the lower side of the movable frame (407), and the lower end face of the limiting frame (409) is lower than the lower end face of the ball (203). A sliding rod (410) is symmetrically fixed on the left and right sides of the limiting frame (409), and the sliding rod (410) is slidably connected to the movable frame (407). One end of the limiting frame (409) is fixed to one end of the first spring (411), and the other end of the first spring (411) is fixed to the movable frame (407). The limiting mechanism (5) includes a connecting... The connecting frame (501) and the control mechanism (6) include a pull rod (601), which is slidably connected to the cutting host (2). A pressure rod (602) is fixed at the upper end of the pull rod (601), and the distance between the pressure rod (602) and the control switch (202) is 1cm-2cm. A circular plate (603) is fixed on the pressure rod (602). One end of the connecting frame (501) is fixed to the circular plate (603), and the connecting frame (501) is slidably connected to the cutting host (2). The other end of the connecting frame (501) is fixed to the movable ring (502). Meanwhile, a ball shaft (503) is nested and slidably connected on the movable ring (502). The ball shaft (503) is slidably connected to the scale rod (402), and the ball shaft (503) is fixed on the limiting rack (504). The limiting rack (504) is slidably connected to the scale rod (402). At the same time, the limiting rack (504) and the limiting tooth block (408) engage to achieve positioning. A fixing frame (505) is also fixed on the movable ring (502), and a locking block (506) is fixed on the fixing frame (505). The locking block (506) is nested with the lower opening of the rotating shaft (401) to achieve positioning.

2. The portable laser cutting device according to claim 1, characterized in that: The electrical control box (1) is fixed with a cable tray (101) on the front side, and a heat dissipation vent (102) is provided on the left side of the electrical control box (1).

3. The portable laser cutting device according to claim 1, characterized in that: The upper end face of the cutting host (2) is fixed with a handle (201), and a control switch (202) is installed on the handle (201).

4. A portable laser cutting device according to claim 1, characterized in that: The cutting mechanism (3) includes an electric telescopic rod (301), which is electrically connected to the controller (204). The electric telescopic rod (301) is fixed inside the cutting host (2), and the output end of the electric telescopic rod (301) is fixed to the movable plate (302). A positioning shaft (303) is fixed on the movable plate (302), and the positioning shaft (303) engages with the round hole on the round plate (603) to achieve positioning.

5. A portable laser cutting device according to claim 4, characterized in that: A crossbar (304) is fixed on the left side of the movable plate (302), and the crossbar (304) is slidably connected to the partition (305), and the partition (305) is fixed inside the cutting host (2).

6. A portable laser cutting device according to claim 5, characterized in that: A mounting plate (306) is fixed on the crossbar (304), and a laser cutting head (307) is fixed on the lower end face of the mounting plate (306). The laser cutting head (307) is connected to the electrical control box (1) through a wire. At the same time, the laser cutting head (307) is electrically connected to the control switch (202). A baffle (308) is fixed on the left side of the mounting plate (306), and rubber pads (309) are symmetrically fixed on the baffle (308).

7. A portable laser cutting device according to claim 1, characterized in that: A first magnet (403) is fixed on the side of the scale rod (402) near the cutting host (2), and the first magnet (403) and the third magnet (405) fixed on the cutting host (2) form a magnetic attraction structure. A second magnet (404) is fixed on the side of the scale rod (402) away from the cutting host (2), and the second magnet (404) and the fourth magnet (406) fixed on the cutting host (2) form a magnetic attraction structure.

8. A portable laser cutting device according to claim 1, characterized in that: A second spring (604) is fixed between the circular plate (603) and the cutting host (2).

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