Laser engraving machine

Abstract

The utility model discloses a laser engraving machine. The laser engraving machine comprises an engraving device, a protection device and an external starting device. The carving device is arranged in the protection device, and the protection device is suitable for conducting all-directional covering or half covering on the carving device through displacement in the vertical direction. The carving device is connected with the external starting device in a matched mode, and the carving device is suitable for translating and rotating in multiple directions under the control of the external starting device. The laser engraving machine has the beneficial effects that compared with an existing laser engraving machine, when the engraving device is used for engraving some products with inclined planes, the engraving device can be perpendicular to the inclined planes through rotation of the engraving device, a clamp does not need to be used, and compared with a traditional mode, the cost is reduced; and meanwhile, the whole engraving process is simplified.

Description

Technical Field

[0001] This application relates to the field of laser engraving machines, and specifically to a laser engraving machine. Background Technology

[0002] Laser engraving machines, as typical opto-mechanical-electronic integrated processing equipment, feature high processing efficiency, high precision, and non-contact processing. They utilize a laser beam to irradiate the surface of a material to form markings, and as the laser beam moves relative to the workpiece, engraving is achieved on the workpiece.

[0003] Most laser engraving machines on the market are designed for horizontal engraving. However, in actual processing, some products may have a specific tilt angle. Engraving these products requires the use of special fixtures to hold and rotate them, which increases costs and makes the engraving process more complicated. Utility Model Content

[0004] The purpose of this application is to provide a laser engraving machine that can solve at least one of the defects in the above-mentioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a laser engraving machine, comprising an engraving device, a protective device, and an external starting device; the engraving device is disposed within the protective device, and the protective device is adapted to fully or partially cover the engraving device by displacement in the vertical direction; the engraving device and the external starting device are connected in cooperation, and the engraving device is adapted to perform multi-directional translation and rotation under the control of the external starting device.

[0006] Preferably, the engraving device includes an X-axis optical drive, a Y-axis optical drive, a laser engraving head, a placement plate, and a control board; the X-axis optical drive is mounted at the bottom of the engraving device to connect to the placement plate, and the placement plate is adapted to hold the product to be engraved; the Y-axis optical drive is disposed above the X-axis optical drive to mount the laser engraving head; the X-axis optical drive and the Y-axis optical drive move in perpendicular directions; the control board is adapted to control the movement of the X-axis optical drive and the Y-axis optical drive.

[0007] Preferably, both the X-axis optical drive and the Y-axis optical drive are equipped with a spindle motor, a guide rail screw, and a sliding member; the spindle motor and the guide rail screw are connected in cooperation; the sliding member and the guide rail screw are connected in cooperation; the guide rail screw is adapted to rotate around its own axis under the drive of the spindle motor, thereby driving the sliding member to move along the axial direction of the guide rail screw.

[0008] Preferably, the control board is provided with an X-axis interface, a Y-axis interface, a power interface, and a communication interface; the X-axis interface is connected to the X-axis optical drive; the Y-axis interface is connected to the Y-axis optical drive; and both the power interface and the communication interface are connected to the external starter device.

[0009] Preferably, the engraving device further includes a mounting rod and an external drive source; the mounting rod is arranged perpendicular to the X-axis optical drive; the mounting rod is divided into an upper rod section and a lower rod section, the Y-axis optical drive is mounted on the upper rod section, and the upper rod section and the lower rod section are rotatably connected; the external drive source is connected to the upper rod section, and the upper rod section is adapted to rotate around the axis of the rotatable connection under the drive of the external drive source.

[0010] Preferably, the protective device includes a protective frame, multiple protective plates, and a lifting device; the multiple protective plates are installed on the protective frame, and the lifting device is adapted to be connected to any one of the protective plates; the lifting device is adapted to drive the connected protective plate to move in the vertical direction.

[0011] Preferably, the lifting device includes a geared motor, a circuit board, a lead screw, and a slider; the geared motor and the circuit board are connected by a signal; the lead screw and the geared motor are connected in cooperation; the lead screw and the slider are connected in cooperation, and the slider and the protective plate are fixedly connected; the circuit board is adapted to send pulse signals to the geared motor so that the geared motor drives the lead screw to rotate, thereby causing the slider to move the protective plate.

[0012] Preferably, the lifting device further includes a pair of limit switches; the limit switches are arranged opposite each other to form a positioning area, and the slider is adapted to move within the positioning area; when the slider touches either of the pair of limit switches, the geared motor stops running.

[0013] Preferably, the external starting device is a computer or a mobile terminal.

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

[0015] Compared to existing laser engraving machines, the engraving device provided in this application can engrave products with inclined surfaces by rotating itself to be perpendicular to the inclined surface, without the need for clamps. This reduces costs compared to traditional methods and simplifies the entire engraving process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the engraving device in this utility model.

[0018] Figure 3 This is a partially enlarged schematic diagram of the engraving device in this utility model.

[0019] Figure 4 This is a schematic diagram of the optical drive in this utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of the protective device in this utility model.

[0021] Figure 6 This is a schematic diagram of the control board in this utility model.

[0022] In the diagram: Engraving device 1, X-axis optical drive 10, Y-axis optical drive 11, guide rail lead screw 111, sliding component 112, mounting rod 12, upper rod section 120, lower rod section 121, control board 13, communication interface 130, power interface 131, X-axis interface 132, Y-axis interface 133, laser engraving head 14, mounting box 140, motor 15, placement plate 16, protection device 2, protection frame 20, protective plate 21, lifting device 22, geared motor 220, lead screw 221, slider 222, first limit switch 223, second limit switch 224, mounting column 225. Detailed Implementation

[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0027] One preferred embodiment of this application, such as Figures 1 to 6 As shown, a laser engraving machine includes an engraving device 1, a protective device 2, and an external starting device. The engraving device 1 is disposed within the protective device 2, which can fully or partially cover the engraving device 1 through vertical displacement. The engraving device 1 and the external starting device are connected in cooperation, allowing the engraving device 1 to perform multi-directional translation and rotation under the control of the external starting device.

[0028] It should be noted that most laser engraving machines on the market adjust the angle of the product to make the surface to be engraved perpendicular to the direction of the laser engraving machine when engraving tilted products, that is, to flatten the surface to be engraved. However, in actual operation, it is impossible to know whether the surface to be engraved has been flattened. If it is not adjusted to be flat, it will lead to a large error after the engraving is completed.

[0029] It should also be noted that in the actual processing, there are often some specific products; these products have a certain tilt angle, and when carving these products, specific jigs are needed to hold and rotate them; however, the use of jigs increases costs and makes the entire carving process more complicated.

[0030] Therefore, in this embodiment, as Figure 2 and Figure 3 As shown, the engraving device 1 includes an X-axis optical drive 10, a Y-axis optical drive 11, a laser engraving head 14, a placement plate 16, and a control board 13. The X-axis optical drive 10 is mounted at the bottom of the engraving device 1 to connect to the placement plate 16, which holds the product to be engraved. The Y-axis optical drive 11 is positioned above the X-axis optical drive 10 to mount the laser engraving head 14. The X-axis optical drive 10 and the Y-axis optical drive 11 move in perpendicular directions. The control board 13 controls the movement of the X-axis optical drive 10 and the Y-axis optical drive 11.

[0031] It should be known that, as Figures 2 to 4 As shown, after partially disassembling the optical drive, it can be seen that the optical drive includes a spindle motor, a guide rail screw 111, and a sliding member 112. There is a pair of guide rail screws 111, which are arranged opposite each other along the width direction of the optical drive.

[0032] It is understandable that the spindle motor and a pair of guide rail screws 111 are connected in a cooperative manner, and the two ends of the sliding member 112 are respectively connected in a cooperative manner with a pair of guide rail screws 111. The guide rail screws 111 can rotate around their own axis under the drive of the spindle motor, thereby driving the sliding member 112 to move along the axial direction of the guide rail screws 111.

[0033] Understandably, the laser engraving head 14 is cylindrical in shape, making direct connection to the slider 112 on the Y-axis optical drive 11 inconvenient. Therefore, the laser engraving head 14 is connected to the slider 112 on the Y-axis optical drive 11 via a mounting box 140. The laser engraving head 14 is installed within the mounting box 140, with its emitting end extending out of the mounting box 140. There are several ways to connect the mounting box 140 to the slider 112 on the Y-axis optical drive 11; it can be a threaded connection or a connection using hot melt adhesive. In this embodiment, a hot melt adhesive connection is preferred.

[0034] In this embodiment, the control board 13 can control the movement of the X-axis optical drive 10 and the Y-axis optical drive 11. Therefore, as... Figure 6 As shown, the control board 13 is equipped with an X-axis interface 132, a Y-axis interface 133, a power interface 131, and a communication interface 130. The X-axis interface 132 can be connected to the X-axis optical drive 10, the Y-axis interface 133 can be connected to the Y-axis optical drive 11, and both the power interface 131 and the communication interface 130 can be connected to an external starter device.

[0035] In this embodiment, the external starting device is set to a computer or a mobile terminal; the mobile terminal can be a laptop, mobile phone, tablet computer, etc.; those skilled in the art can choose according to their needs.

[0036] When the external starter is set to a computer, the communication interface 130 and power interface 131 on the control board 13 can be connected to the computer via hardware. By operating the computer software, an electronic signal is established with the control board 13. After receiving the signal from the computer, the control board 13 drives the spindle motors on the X-axis optical drive 10 and the Y-axis optical drive 11 to rotate, thereby driving the placement plate 16 and the laser engraving head 14 to move. At the same time, the control board 13 can also control the laser emission of the laser engraving head 14.

[0037] When the external starting device is a mobile terminal, the control board 13 can connect to the mobile terminal via the communication interface 130; by operating the mobile terminal, the X-axis optical drive 10 and the Y-axis optical drive 11 can be moved.

[0038] It should be noted that the above-mentioned settings only enable the engraving device 1 to achieve translational motion in multiple directions, but not rotation.

[0039] Therefore, in this embodiment, as Figure 2 and Figure 3 As shown, the engraving device 1 also includes a mounting rod 12 and an external drive source. The mounting rod 12 is perpendicular to the X-axis optical drive 10. The mounting rod 12 is divided into an upper rod section 120 and a lower rod section 121, which are rotatably connected. The Y-axis optical drive 11 is mounted on the upper rod section 120. The external drive source is connected to the upper rod section 120, and the upper rod section 120 can rotate around the axis of the rotatable connection under the drive of the external drive source.

[0040] It is understood that the specific structure of the external drive source is set to technology known to those skilled in the art. The external drive source can be a motor 15, a rotary cylinder, a rotary hydraulic cylinder, etc. In this embodiment, a motor 15 is preferred. The output shaft of the output end of the motor 15 passes through the connection between the upper rod section 120 and the lower rod section 121. The upper rod section 120 and the output shaft are fixedly connected, so that when the motor 15 is running, it can drive the upper rod section 120 to rotate through the output shaft.

[0041] In this embodiment, there are many ways to control the rotation angle of the motor 15. For ease of understanding, two specific control methods are described below; those skilled in the art can choose according to their needs.

[0042] (1) A sensor is set on the laser engraving head 14. The sensor can detect the tilt angle of the product tilt surface and then convert it into an electrical signal and transmit it to the control board 13. The control board 13 converts it into an angle rotation signal and transmits it to the motor to control the rotation angle of the motor 15.

[0043] (2) Measure the tilt angle before placing the product on the placement plate 16, and then input the measurement data on a computer or mobile terminal to control the angle of rotation of the motor 15.

[0044] It's important to know that the laser emitted by a laser engraving machine can damage the eyes. The high energy intensity of the laser used in these machines can cause vision damage or even blindness if directly exposed to the eyes. The highly concentrated laser beam can penetrate the cornea and lens, reaching the retina and causing burns. Short-term exposure to high-intensity laser light can lead to acute damage, such as retinal burns and macular damage, most of which are irreversible.

[0045] Therefore, a protective device 2 is also provided in this embodiment. The protective device 2 can cover or cover the engraving device 1 in all directions by vertical displacement.

[0046] It is understandable that, such as Figure 5 As shown, the protective device 2 includes a protective frame 20, multiple protective plates 21, and a lifting device 22. The multiple protective plates 21 are installed on the protective frame 20, and the lifting device 22 can be connected to any one of the protective plates 21. The lifting device 22 can drive the connected protective plate 21 to move vertically.

[0047] For the protective plate 21, an opaque acrylic plate is used in this embodiment.

[0048] Understandably, when a user needs to place a product to be carved, the lifting device 22 is activated, which drives the protective plate 21 connected to the lifting device 22 to move vertically upward, thus partially covering the carving device 1, so that the product can be placed in. After the product is placed in, when carving is required, the lifting device 22 is activated again, which drives the corresponding protective plate 21 to move vertically downward, thus achieving full coverage.

[0049] It is also understood that the lifting device 22 includes a geared motor 220, a circuit board, a lead screw 221, and a slider 222. The geared motor 220 is connected to the circuit board via a signal connection, the lead screw 221 is connected to the geared motor 220 via a mating connection, the lead screw 221 is connected to the slider 222 via a mating connection, and the slider 222 is fixedly connected to the protective plate 21. The circuit board can send pulse signals to the geared motor 220 to drive the lead screw 221 to rotate, thereby causing the slider 222 to move the protective plate 21.

[0050] It should be understood that the specific structure of the aforementioned circuit board is well-known to those skilled in the art, and therefore will not be described here.

[0051] In this embodiment, as Figure 5 As shown, the lifting device 22 also includes a pair of limit switches and a mounting column 225. The pair of limit switches are divided into a first limit switch 223 and a second limit switch 224. The first limit switch 223 is located at the upper end of the mounting column 225, and the second limit switch 224 is located at the lower end of the mounting column 225. A positioning area is formed between the first limit switch 223 and the second limit switch 224. The slider 222 can only move within the positioning area. When the slider 222 touches the first limit switch 223, the reduction motor 220 stops operating, that is, the protective plate 21 stops moving vertically upward, partially covering the engraving device 1. When the slider 222 touches the second limit switch 224, the reduction motor 220 stops operating, that is, the protective plate 21 stops moving vertically downward, fully covering the engraving device 1.

[0052] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A laser engraver characterized by, The application relates to an engraving device, a protection device and an external starting device. The engraving device is arranged in the protection device, the protection device is adapted to cover or half-cover the engraving device through displacement in the vertical direction, the engraving device is connected with the external starting device, and the engraving device is adapted to move and rotate in multiple directions under the control of the external starting device. The engraving device comprises an X-axis optical drive, a Y-axis optical drive, a laser engraving head, a placing plate and a control plate; the X-axis optical drive is arranged at the bottom of the engraving device and is used for connecting the placing plate, the placing plate is adapted to place products to be engraved; the Y-axis optical drive is arranged above the X-axis optical drive and is used for mounting the laser engraving head; the movement directions of the X-axis optical drive and the Y-axis optical drive are perpendicular; and the control plate is adapted to control the movement of the X-axis optical drive and the Y-axis optical drive.

2. A laser engraver as claimed in claim 1, characterized in that: The X-axis optical drive and the Y-axis optical drive are both provided with a main shaft motor, a guide rail screw and a sliding piece; the main shaft motor and the guide rail screw are connected; the sliding piece and the guide rail screw are connected; and the guide rail screw is adapted to rotate around its axis under the drive of the main shaft motor, so as to drive the sliding piece to move along the axis direction of the guide rail screw.

3. A laser engraver as claimed in claim 2, wherein: The control plate is provided with an X-axis interface, a Y-axis interface, a power supply interface and a communication interface; the X-axis interface is connected with the X-axis optical drive; the Y-axis interface is connected with the Y-axis optical drive; and the power supply interface and the communication interface are both connected with the external starting device.

4. A laser engraver as claimed in claim 2, wherein: The engraving device further comprises a mounting rod and an external driving source; the mounting rod is perpendicular to the X-axis optical drive; the mounting rod is divided into an upper rod segment and a lower rod segment, the Y-axis optical drive is mounted on the upper rod segment, and the upper rod segment and the lower rod segment are rotationally connected; the external driving source is connected with the upper rod segment, and the upper rod segment is adapted to rotate around the axis of the rotationally connected part under the drive of the external driving source.

5. A laser engraver as claimed in claim 2, wherein: The protection device comprises a protection frame, a plurality of protection plates and a lifting device; the plurality of protection plates are mounted on the protection frame, and the lifting device is adapted to be connected with any one of the protection plates; and the lifting device is adapted to drive the connected protection plate to move in the vertical direction.

6. A laser engraver as claimed in claim 1, characterized in that: The lifting device comprises a reduction motor, a circuit board, a screw rod and a sliding block; the reduction motor is signal-connected with the circuit board; the screw rod is connected with the reduction motor; the screw rod is connected with the sliding block, and the sliding block is fixedly connected with the protection plate; and the circuit board is adapted to send a pulse signal to the reduction motor to drive the screw rod to rotate, so as to drive the sliding block and the protection plate to displace.

7. A laser engraver as claimed in claim 6 wherein: The lifting device further comprises a pair of travel switches; the travel switches are oppositely arranged to form a positioning area, and the sliding block is adapted to move in the positioning area; when the sliding block touches any one of the travel switches, the reduction motor stops running.

8. A laser engraver as claimed in claim 7, wherein: The external starting device is a computer or a mobile terminal.

9. A laser engraver as claimed in claim 1, characterized in that: ​

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