Desktop type laser engraving machine

Abstract

The invention relates to the technical field of desktop type laser engraving, and provides a desktop type laser engraving machine. The desktop type laser engraving machine comprises a rack, a mounting assembly, a lifting assembly and a galvanometer assembly, the mounting assembly is used for mounting a workpiece to be machined, the lifting assembly is mounted on the rack, the galvanometer assembly is mounted on the lifting assembly, the lifting assembly is used for driving the galvanometer assembly to move relative to the mounting assembly, and the galvanometer assembly is used for emitting laser beams to the workpiece to be machined. According to the desktop type laser engraving machine, the galvanometer assembly can be driven to move relative to the workpiece to be machined, so that the distance between the galvanometer assembly and the workpiece to be machined is adjusted, the focus of laser emitted by the galvanometer assembly can accurately fall at the target position of the workpiece to be machined, automatic adjustment of the galvanometer assembly is achieved, and the machining efficiency is improved. The use steps of the desktop type laser engraving machine are effectively simplified, the machining precision of the desktop type laser engraving machine is guaranteed, and the intelligent degree of the desktop type laser engraving machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of desktop laser engraving, and in particular to a desktop laser engraving machine. Background Art

[0002] Laser engraving machine is a kind of equipment that uses laser technology to perform engraving, marking, cutting and other processing operations. By focusing a high-energy laser beam onto the surface of the material, a desktop laser engraving machine can accurately perform fine engraving or cutting on different materials. Desktop laser engraving machines are widely used in many fields such as handicraft production, advertising, signs and signs, mobile phone accessories, artwork, electronic products, leather, wood, etc.

[0003] In order to meet the needs of individuals and small studios, desktop laser engraving machines have appeared on the market. However, the intelligence level of desktop laser engraving machines in related technologies needs to be improved. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a desktop laser engraving machine which can automatically adjust the height and improve the intelligence level.

[0005] The desktop laser engraving machine according to an embodiment of the present application includes:

[0006] frame;

[0007] Installation components, used for installing the workpiece to be processed;

[0008] A lifting assembly is installed on the frame;

[0009] A galvanometer assembly is installed on the lifting assembly, and the lifting assembly is used to drive the galvanometer assembly to move relative to the mounting assembly. The galvanometer assembly is used to emit a laser beam to a workpiece to be processed.

[0010] According to the desktop laser engraving machine of the embodiment of the present application, the frame can support the mounting assembly, the lifting assembly and the galvanometer assembly, and the galvanometer assembly can emit a laser beam to the workpiece to be processed, so as to process the workpiece to be processed using the laser beam. The lifting assembly can drive the galvanometer assembly to move relative to the mounting assembly, that is, the galvanometer assembly can be driven to move relative to the workpiece to be processed, so as to adjust the distance between the galvanometer assembly and the workpiece to be processed, so that the focus of the laser emitted by the galvanometer assembly can accurately fall on the target position of the workpiece to be processed, and the automatic adjustment of the galvanometer assembly is realized, which effectively simplifies the use steps of the desktop laser engraving machine, ensures the processing accuracy of the desktop laser engraving machine, and improves the intelligence level of the desktop laser engraving machine.

[0011] According to one embodiment of the present application, the frame is provided with a guide rail, and the lifting assembly includes a lifting motor, a screw rod, a lifting bracket and a slider, the lifting motor is installed on the frame, the screw rod is connected to the lifting motor, the lifting bracket is connected to the screw rod, the slider is connected to the lifting bracket, and the slider is slidably connected to the guide rail.

[0012] According to one embodiment of the present application, the desktop laser engraving machine also includes a first sensing switch and a second sensing switch. The first sensing switch and the second sensing switch are arranged in sequence and spaced apart along the moving direction of the lifting bracket. The first sensing switch and the second sensing switch are both used to detect the position of the lifting bracket.

[0013] According to one embodiment of the present application, the galvanometer assembly includes a laser, a lens assembly and a polarizer assembly, and the laser, the lens assembly and the polarizer assembly are arranged in sequence along the horizontal direction so that the laser emitted by the laser is transmitted to the lens assembly and the polarizer assembly in sequence.

[0014] According to one embodiment of the present application, the polarizer assembly includes a mounting base, a first motor, a first polarizer, a second motor and a second polarizer, the first motor and the second motor are both mounted on the mounting base, the first polarizer is connected to the first motor, the first motor is used to drive the first polarizer to rotate, the second polarizer is connected to the second motor, and the second motor is used to drive the second polarizer to rotate.

[0015] According to one embodiment of the present application, the galvanometer assembly further includes a lens, wherein the lens is located between the polarizer assembly and the mounting assembly, and the lens is used to focus the laser.

[0016] According to an embodiment of the present application, the desktop laser engraving machine further includes a position indicating component, and the position indicating component is used to identify the position of the laser.

[0017] According to one embodiment of the present application, the position indication component includes a red light spotlight, which is used to emit red light to the position where the laser is located.

[0018] According to one embodiment of the present application, the desktop laser engraving machine also includes a protective cover, which is connected to the frame. The protective cover and the frame form an installation cavity, and the installation component, the lifting component and the galvanometer component are all located in the installation cavity.

[0019] According to an embodiment of the present application, the desktop laser engraving machine further includes a smoke exhaust fan, which is connected to the frame and is used to connect the installation cavity with the outside world.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a desktop laser engraving machine provided in an embodiment of the present application;

[0023] Figure 2 It is a partial structural schematic diagram of a desktop laser engraving machine provided in an embodiment of the present application;

[0024] Figure 3 is a schematic structural diagram of a galvanometer assembly provided in an embodiment of the present application;

[0025] Figure 4 It is a schematic diagram of the structure of the polarizer assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0027] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0029] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] Combine the following Figures 1 to 4 A desktop laser engraver of the present application is described.

[0032] According to the embodiments of the present application, Figure 1 and Figure 2 As shown, the desktop laser engraving machine includes a frame 1, a mounting assembly 2, a lifting assembly 3 and a galvanometer assembly 4, the mounting assembly 2 is used to mount the workpiece to be processed, the lifting assembly 3 is installed on the frame 1, the galvanometer assembly 4 is installed on the lifting assembly 3, the lifting assembly 3 is used to drive the galvanometer assembly 4 to move relative to the mounting assembly 2, and the galvanometer assembly 4 is used to emit a laser beam to the workpiece to be processed.

[0033] According to the desktop laser engraving machine of the embodiment of the present application, the frame 1 can support the mounting assembly 2, the lifting assembly 3 and the galvanometer assembly 4, and the galvanometer assembly 4 can emit a laser beam to the workpiece to be processed, so as to process the workpiece to be processed using the laser beam. The lifting assembly 3 can drive the galvanometer assembly 4 to move relative to the mounting assembly 2, that is, it can drive the galvanometer assembly 4 to move relative to the workpiece to be processed, so as to adjust the distance between the galvanometer assembly 4 and the workpiece to be processed, so that the focus of the laser emitted by the galvanometer assembly 4 can accurately fall on the target position of the workpiece to be processed, and the automatic adjustment of the galvanometer assembly 4 is realized, which effectively simplifies the use steps of the desktop laser engraving machine, ensures the processing accuracy of the desktop laser engraving machine, and improves the intelligence level of the desktop laser engraving machine.

[0034] In some examples, such as Figure 1 and Figure 2 As shown, the side wall of the frame 1 is provided with an engraving button 11, and the user can start the laser engraving task by pressing the button.

[0035] An upward movement button 12 is provided on the side wall of the frame 1. When the user presses the button, the lifting assembly 3 is activated to move the galvanometer assembly 4 upward.

[0036] A downward movement button 13 is provided on the side wall of the frame 1: when the user presses the button, the lifting assembly 3 is started to move the galvanometer assembly 4 downward.

[0037] The frame 1 is provided with a main control board 14, which is responsible for the control and management of the entire system, including the linkage of various components, the monitoring of the laser engraving process and the execution of other operating instructions. The main control board is connected with various sensors, buttons and motor systems to ensure the smooth operation of the engraving machine.

[0038] An emergency switch is provided on the side wall of the rack 1. In case of a failure or emergency, the user can press the emergency switch to immediately cut off the power supply to ensure safe operation.

[0039] A power switch is provided on the side wall of the frame 1 for turning on or off the power of the desktop laser engraving machine.

[0040] In some embodiments, Figure 1 and Figure 2 As shown, the frame 1 is provided with a guide rail 15, and the lifting assembly 3 includes a lifting motor 31, a screw rod 32, a lifting bracket 33 and a slider 34. The lifting motor 31 is installed on the frame 1, the screw rod 32 is connected to the lifting motor 31, the lifting bracket 33 is connected to the screw rod, the slider 34 is connected to the lifting bracket 33, and the slider 34 is slidably connected to the guide rail 15.

[0041] It is understandable that the lifting motor 31 drives the screw to rotate, so that the screw can drive the lifting bracket 33 to move along the guide rail 15, and the galvanometer assembly 4 is installed on the lifting bracket 33, then the galvanometer assembly 4 will move along the guide rail 15 to achieve position adjustment of the galvanometer assembly 4.

[0042] In some embodiments, Figure 1 and Figure 2 As shown, the desktop laser engraving machine also includes a first induction switch 5 and a second induction switch 6. Along the moving direction of the lifting bracket 33, the first induction switch 5 and the second induction switch 6 are arranged in sequence at intervals. The first induction switch 5 and the second induction switch 6 are both used to detect the position of the lifting bracket 33.

[0043] It is understandable that the first induction switch 5 and the second induction switch 6 can detect the position of the lifting bracket 33 , which is also the position of the galvanometer assembly 4 , thereby facilitating the control of the operation of the lifting assembly 3 according to the position of the galvanometer assembly 4 .

[0044] In some examples, the first induction switch 5 and the second induction switch 6 are respectively located at the two ends of the travel of the lifting assembly 3. Exemplarily, the first induction switch 5 is located at the upper end of the travel of the lifting assembly 3, and the second induction switch 6 is located at the lower end of the travel of the lifting assembly 3, that is, when the first induction switch 5 senses the lifting bracket 33, it means that the lifting bracket 33 has moved to the highest position at this time, and the lifting assembly 3 can be controlled to stop working, and when the second induction switch 6 senses the lifting bracket 33, it means that the lifting bracket 33 has moved to the lowest position at this time, and the lifting assembly 3 can be controlled to stop working.

[0045] In some embodiments, Figure 2 and Figure 3 As shown, the galvanometer assembly 4 includes a laser 41, a lens assembly 42 and a polarizer assembly 43. The laser 41, the lens assembly 42 and the polarizer assembly 43 are arranged in sequence along the horizontal direction so that the laser emitted by the laser 41 is transmitted to the lens assembly 42 and the polarizer assembly 43 in sequence.

[0046] It is understandable that the lens assembly 42 can transmit the laser light emitted by the laser 41 to the polarizer assembly 43, and the polarizer assembly 43 can control and adjust the polarization characteristics of the laser light to improve the engraving effect and material adaptability.

[0047] In some embodiments, Figure 2 and Figure 3As shown, the galvanometer assembly 4 further includes a lens 44, which is located between the polarizer assembly 43 and the mounting assembly 2, and is used to focus the laser. It is understood that the polarizer assembly 43 transmits the laser to the lens 44, and the lens 44 focuses the laser beam so that the spot of the laser beam can form an accurate engraving pattern on the surface of the workpiece to be processed.

[0048] In some embodiments, Figure 2 and Figure 3 As shown, the lens assembly 42 includes a reflector 421 and a single-side light-transmitting reflector 422 . The reflector 421 reflects the laser light emitted by the laser 41 to the single-side light-transmitting reflector 422 . The single-side light-transmitting reflector 422 is used to adjust the propagation direction of the laser light.

[0049] It is understandable that the reflector 421 can reflect the laser beam to the single-side light-transmitting reflector 422 to ensure the accuracy of the path of the laser beam, while the single-side light-transmitting reflector 422 can further adjust the propagation direction of the laser beam to optimize the engraving effect.

[0050] In some embodiments, the desktop laser engraving machine also includes a transverse moving component, which is connected to the lifting component 3, and the transverse moving component is connected to the galvanometer component 4. The lifting component 3 is used to drive the transverse moving component to rise and fall, and the transverse moving component is used to drive the galvanometer component 4 to move laterally.

[0051] It can be understood that the lateral movement component can drive the galvanometer component 4 to move lateraly, that is, the galvanometer component 4 can be moved in the horizontal direction, and then the landing point of the laser beam on the workpiece to be processed can be adjusted to achieve precise processing.

[0052] Exemplarily, the lateral movement component is, for example, a motor or a cylinder.

[0053] In some embodiments, Figure 3 and Figure 4 As shown, the polarizer assembly 43 includes a mounting base 431, a first motor 432, a first polarizer 433, a second motor 434 and a second polarizer 435, the first motor 432 and the second motor 434 are both mounted on the mounting base 431, the first polarizer 433 is connected to the first motor 432, the first motor 432 is used to drive the first polarizer 433 to rotate, the second polarizer 435 is connected to the second motor 434, and the second motor 434 is used to drive the second polarizer 435 to rotate.

[0054] It can be understood that the rotation angle of the first polarizer 433 is controlled and adjusted by the first motor 432, and the rotation angle of the second polarizer 435 is controlled and adjusted by the second motor 434, so that the polarization characteristics of the laser beam can be controlled by the first polarizer 433 and the second polarizer 435 to improve the engraving effect and material adaptability.

[0055] In some examples, the first polarizer 433 and the second polarizer 435 are both located on a side of the lens 44 facing away from the mounting assembly 2 .

[0056] In some embodiments, Figure 3 As shown, the desktop laser engraving machine further includes a position indicating component 7, and the position indicating component 7 is used to mark the position of the laser.

[0057] It can be understood that the position indicating component 7 can indicate the specific position of the laser beam, so that the user can accurately know the position of the laser beam through the position indicating component 7, so that the user can control the laser beam to align with the engraving position, thereby ensuring the engraving effect.

[0058] In some examples, such as Figure 3 As shown, the position indicating assembly 7 includes a red light spotlight 71, which is used to emit red light to the position of the laser. The red light spotlight 71 can emit red light to indicate the position of the laser, so that the user can know the position of the laser by observing the red light.

[0059] Exemplarily, the red light spotlight 71 is connected to the galvanometer assembly 4 to ensure synchronous movement of the red light spotlight 71 and the galvanometer assembly 4, so that the red light spotlight 71 can continuously and accurately indicate the position of the laser.

[0060] In some embodiments, Figure 1 As shown, the desktop laser engraving machine also includes a protective cover 8, which is connected to the frame 1. The protective cover 8 and the frame 1 are surrounded by a mounting cavity, and the mounting component 2, the lifting component 3 and the galvanometer component 4 are all located in the mounting cavity.

[0061] It can be understood that the protective cover 8 can protect the operator and prevent the laser beam from causing damage to the operator's eyes.

[0062] Exemplarily, the protective cover 8 is a transparent protective cover 8 .

[0063] In some embodiments, the frame 1 includes a first side surface and a second side surface arranged opposite to each other, the first side surface of the frame 1 is provided with a first magnetic track, and the second side surface of the frame 1 is provided with a second magnetic track, the protective cover 8 includes a first end and a second end arranged opposite to each other, the first end of the protective cover 8 is provided with a first magnetic slider 34, and the second end of the protective cover 8 is provided with a second magnetic slider 34, the first magnetic slider 34 is magnetically connected to the first magnetic track and the first magnetic slider 34 can slide relative to the first magnetic track, the second magnetic slider 34 is magnetically connected to the second magnetic track and the second magnetic slider 34 can slide relative to the second magnetic track.

[0064] It is understandable that the first magnetic slider 34 and the first magnetic track are connected together by magnetic attraction, and the second magnetic slider 34 and the second magnetic track are connected together by magnetic attraction. When there is no external force, under the action of magnetic force, the first magnetic slider 34 will not move relative to the first magnetic track, and the second magnetic slider 34 will not move relative to the second magnetic track, that is, under the action of magnetic force, the protective cover 8 will not move relative to the frame 1. When the protective cover 8 is subjected to external force, the external force can overcome the effect of the magnetic force, and then the protective cover 8 can move relative to the frame 1. Furthermore, the user can adjust the position of the protective cover 8, and the protective cover 8 can hover at the desired position under the action of magnetic force, so that the user can adjust the position of the protective cover 8 according to the needs of the engraving task.

[0065] In some embodiments, Figure 2 As shown, the desktop laser engraving machine further includes a smoke exhaust fan 9, which is connected to the frame 1 and is used to connect the installation cavity with the outside.

[0066] It is understandable that during the laser engraving process, the material is vaporized or produces fine dust particles when irradiated by the laser beam, and the smoke exhaust fan 9 can discharge the smoke and dust out of the working area in time.

[0067] Exemplarily, the smoke exhaust fan 9 is mounted on the rack 1 via a fan bracket 91 .

[0068] In some embodiments, the desktop laser engraving machine further includes a control component, and the lifting component 3, the galvanometer component 4 and the lateral movement component are all connected to the control component.

[0069] The control component is configured to: control and adjust the energy of the laser emitted by the laser 41 so that the energy of the laser emitted by the laser 41 is lower than a preset value; obtain the actual position of the laser on the workpiece to be processed; and control the operation of the lifting component 3 and the lateral movement component based on the actual position and the target position.

[0070] It is understandable that in order to ensure the accuracy of laser engraving, the lifting assembly 3 and the lateral moving assembly can be calibrated. Specifically, the laser 41 is first controlled to emit a laser beam with the lowest energy, and then the actual position of the laser beam can be obtained through the position indicating assembly 7 without causing any actual impact on the workpiece being processed; then the actual position and the target position are compared, and if the two are different, the lifting assembly 3 and the lateral moving assembly are controlled to work so that the actual position of the laser beam coincides with the target position, thereby achieving the calibration of the lifting assembly 3 and the lateral moving assembly.

[0071] Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A desktop laser engraving machine, characterized in that: include: frame; Installation components, used for installing the workpiece to be processed; A lifting assembly is installed on the frame; A galvanometer assembly is installed on the lifting assembly, and the lifting assembly is used to drive the galvanometer assembly to move relative to the mounting assembly. The galvanometer assembly is used to emit a laser beam to a workpiece to be processed.

2. The desktop laser engraving machine according to claim 1, characterized in that: The frame is provided with a guide rail, and the lifting assembly includes a lifting motor, a lead screw, a lifting bracket and a slider. The lifting motor is installed on the frame, the lead screw is connected to the lifting motor, the lifting bracket is connected to the lead screw, the slider is connected to the lifting bracket, and the slider is slidably connected to the guide rail.

3. The desktop laser engraving machine according to claim 1, characterized in that: The desktop laser engraving machine also includes a first induction switch and a second induction switch. The first induction switch and the second induction switch are arranged in sequence and spaced apart along the moving direction of the lifting bracket. The first induction switch and the second induction switch are both used to detect the position of the lifting bracket.

4. The desktop laser engraving machine according to any one of claims 1 to 3, characterized in that: The galvanometer assembly comprises a laser, a lens assembly and a polarizer assembly, and the laser, the lens assembly and the polarizer assembly are arranged in sequence along the horizontal direction so that the laser light emitted by the laser is transmitted to the lens assembly and the polarizer assembly in sequence.

5. The desktop laser engraving machine according to claim 4, characterized in that: The polarizer assembly includes a mounting base, a first motor, a first polarizer, a second motor and a second polarizer, the first motor and the second motor are both mounted on the mounting base, the first polarizer is connected to the first motor, the first motor is used to drive the first polarizer to rotate, the second polarizer is connected to the second motor, and the second motor is used to drive the second polarizer to rotate.

6. The desktop laser engraving machine according to claim 4, characterized in that: The galvanometer assembly also includes a lens, which is located between the polarizer assembly and the mounting assembly, and is used to focus the laser.

7. The desktop laser engraving machine according to any one of claims 1 to 3, characterized in that: The desktop laser engraving machine further comprises a position indicating component, and the position indicating component is used to mark the position of the laser.

8. The desktop laser engraving machine according to claim 7, characterized in that: The position indicating component comprises a red light spotlight, and the red light spotlight is used to emit red light to the position where the laser is located.

9. The desktop laser engraving machine according to any one of claims 1 to 3, characterized in that: The desktop laser engraving machine also includes a protective cover, which is connected to the frame. The protective cover and the frame are surrounded by a mounting cavity, and the mounting assembly, the lifting assembly and the galvanometer assembly are all located in the mounting cavity.

10. The desktop laser engraving machine according to any one of claims 1 to 3, characterized in that: The desktop laser engraving machine also includes a smoke exhaust fan, which is connected to the frame and is used to connect the installation cavity with the outside world.

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