Laser light emitting method, 3D printing equipment, electronic equipment and storage medium

Abstract

The invention provides a laser light emitting method, 3D printing equipment, electronic equipment and a storage medium. The 3D printing equipment comprises a laser, a galvanometer and an oscillation detection device fixedly connected with the galvanometer. The method comprises the steps that after the laser device completes a last scanning task, the laser device is controlled to stop emitting laser to the galvanometer; controlling the galvanometer to move to a target position, and detecting whether the galvanometer is in a stable state after moving to the target position according to the oscillation detection device; and after the galvanometer is detected to be in the stable state, the laser is controlled to continuously emit laser to the galvanometer. The working efficiency of the 3D printing equipment can be improved.

Description

Technical Field

[0001] The present application relates to the field of 3D printing technology, and in particular to a laser light emitting method, a 3D printing device, an electronic device and a storage medium. Background Art

[0002] With the popularization of concepts such as intelligent manufacturing engineering and Industry 4.0, 3D printing technology is becoming more and more popular. 3D printing technology first appeared in the mid-1990s. It is actually the latest rapid prototyping device using technologies such as photocuring and paper lamination. It has basically the same working principle as ordinary printing. The printer is filled with "printing materials" such as liquid or powder. After connecting to the computer, the "printing materials" are stacked layer by layer through computer control, and finally the blueprint on the computer is turned into a physical object. This printing technology is called 3D stereoscopic printing technology.

[0003] In the related art, the laser of the 3D printing device stops emitting light every time it completes a scan, and then starts emitting light again after the galvanometer lens reaches the next target position. Therefore, the 3D printing device will set a waiting time, and the board of the 3D printing device needs to send a light signal to the laser after the set waiting time. In order to ensure that the galvanometer has reached the target position when the laser emits light, the waiting time will be set longer, which will lead to low working efficiency of the 3D printing device. Summary of the invention

[0004] In view of this, the present application provides a laser light emitting method, a 3D printing device, an electronic device and a storage medium, which can improve the working efficiency of the 3D printing device.

[0005] A first aspect of the present application provides a laser light emitting method, which is applied to a 3D printing device, wherein the 3D printing device includes a laser, a galvanometer, and an oscillation detection device fixedly connected to the galvanometer; the method includes: after the laser completes the last scanning task, controlling the laser to stop emitting laser light to the galvanometer; controlling the galvanometer to move to a target position, and detecting whether the galvanometer is in a stable state after moving to the target position according to the oscillation detection device; after detecting that the galvanometer is in a stable state, controlling the laser to continue emitting laser light to the galvanometer.

[0006] Compared with the related art, the embodiments of the present application have at least the following advantages:

[0007] By setting an oscillation detection device fixedly connected to the galvanometer, after the galvanometer moves to the target position, the oscillation detection device can detect whether the galvanometer is in a stable state, and after detecting that the galvanometer is in a stable state, the laser can be immediately controlled to continue to emit laser to the galvanometer, thereby reducing the waiting time of the laser and avoiding the situation that "the board of the 3D printing device needs to send a light signal to the laser after a set waiting time, and in order to ensure that the galvanometer has reached the target position when the laser emits light, the waiting time will be set longer", thereby improving the working efficiency of the 3D printing device.

[0008] In some possible implementations, detecting whether the galvanometer is in a stable state after moving to the target position according to the oscillation detection device includes: after the galvanometer moves to the target position, detecting whether the galvanometer oscillates back and forth according to the oscillation detection device; and determining that the galvanometer is in a stable state when it is detected that the galvanometer does not oscillate back and forth.

[0009] In some possible implementations, the oscillation detection device is a grating sensor; detecting whether the galvanometer oscillates back and forth based on the oscillation detection device includes: detecting whether the galvanometer reciprocates along the first direction and the second direction based on the grating sensor; wherein the first direction is opposite to the second direction.

[0010] In some possible implementations, the method further includes: determining that the galvanometer moves to the target position in the following manner: detecting, according to the oscillation detection device, whether the galvanometer moves along a first direction close to the target position; and determining that the galvanometer moves to the target position when it is detected that the galvanometer does not move along the first direction.

[0011] In some possible implementations, controlling the laser to continue emitting laser light toward the galvanometer includes: receiving a stable signal sent by the oscillation detection device, wherein the stable signal is used to indicate that the galvanometer is in a stable state; and sending an optical signal to the laser so that the laser continues to emit laser light toward the galvanometer.

[0012] In some possible implementations, the 3D printing device also includes a galvanometer motor, which is connected to the galvanometer; and controlling the galvanometer to move to the target position includes: sending a motion instruction to the galvanometer motor so that the galvanometer motor drives the galvanometer to move to the target position.

[0013] The second aspect of the present application discloses a 3D printing device, including: a laser, a galvanometer, an oscillation detection device connected to the galvanometer, and a control circuit board; the laser is used to emit laser light to the galvanometer; the control circuit board is used to control the laser to stop emitting laser light to the galvanometer after the laser completes the last scanning task; the control circuit board is also used to control the galvanometer to move to a target position, and the oscillation detection device is also used to detect whether the galvanometer is in a stable state after moving to the target position; the control circuit board is also used to control the laser to continue emitting laser light to the galvanometer after the oscillation detection device detects that the galvanometer is in a stable state.

[0014] In some possible implementations, the oscillation detection device is a grating sensor; the oscillation detection device detects whether the galvanometer is in a stable state after moving to the target position, including: the grating sensor detects whether the galvanometer reciprocates along the first direction and the second direction; wherein the first direction is opposite to the second direction; if the galvanometer does not reciprocate along the first direction and the second direction after moving to the target position, then the galvanometer is in the stable state.

[0015] The third aspect of the present application discloses an electronic device, which includes a processor and a memory, wherein the memory is used to store instructions, and the processor is used to call the instructions in the memory so that the electronic device executes the above-mentioned laser light emitting method.

[0016] The fourth aspect of the present application discloses a storage medium, including computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the above-mentioned laser light emitting method.

[0017] It can be understood that the 3D printing device of the second aspect, the electronic device of the third aspect, and the storage medium of the fourth aspect provided above all correspond to the method of the first aspect. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the functional modules of a 3D printing device provided in one embodiment of the present application.

[0020] Figure 2 A flowchart of a laser light emitting method provided in one embodiment of the present application.

[0021] Figure 3 A flowchart of a laser light emitting method provided in one embodiment of the present application.

[0022] Figure 4 A schematic diagram of the hardware structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the implementation methods of the present application and the features in the implementation methods can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present application. The described implementations are only part of the implementations of the present application, rather than all the implementations.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It should be further noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0027] In this application, "at least one" means one or more, and "more" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0028] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0029] To facilitate understanding, some illustrations of concepts related to the embodiments of the present application are given by way of example for reference.

[0030] 3D printing equipment, also known as three-dimensional printers, is a rapid prototyping process equipment, usually using digital technology to print materials. 3D printing equipment is often used to manufacture models or parts in the fields of mold manufacturing, industrial design, etc.

[0031] Please refer to Figure 1 , is a schematic diagram of the functional modules of the 3D printing device 100 provided in an embodiment of the present application.

[0032] like Figure 1 As shown, the 3D printing device 100 includes: a laser 1, a galvanometer 2, an oscillation detection device 3 connected to the galvanometer 2, and a control circuit board 4; the laser 1 is used to emit laser light to the galvanometer 2; the control circuit board 4 is used to control the laser 1 to stop emitting laser light to the galvanometer 2 after the laser 1 completes the last scanning task; the control circuit board 4 is also used to control the galvanometer 2 to move to the target position, and the oscillation detection device 3 is used to detect whether the galvanometer 2 is in a stable state after moving to the target position; the control circuit board 4 is also used to control the laser 1 to continue emitting laser light to the galvanometer 2 after the oscillation detection device 3 detects that the galvanometer 2 is in a stable state.

[0033] Specifically, taking the oscillation detection device 3 as a grating sensor as an example, the grating sensor is connected to the galvanometer 2, and the grating sensor can sense the movement direction of the galvanometer 2. When the galvanometer 2 reaches the target position, the galvanometer 2 moves in one direction. When the galvanometer 2 reaches the target position, the galvanometer 2 will oscillate back and forth due to inertia, and the grating sensor can detect that the galvanometer 2 reciprocates in two opposite directions. In this way, after the grating sensor detects that the galvanometer 2 does not reciprocate in two opposite directions, it will send a stable signal to the control circuit board 4. After receiving the stable signal, the control circuit board 4 will send a light signal to the laser 1, so that the laser 1 will emit laser light to the galvanometer 2 again.

[0034] Compared with the related art, the embodiments of the present application have at least the following advantages: by providing an oscillation detection device 3 fixedly connected to the galvanometer 2, the oscillation detection device 3 can detect whether the galvanometer 2 is in a stable state after the galvanometer 2 moves to the target position, and can immediately control the laser 1 to continue to emit laser to the galvanometer 2 after detecting that the galvanometer 2 is in a stable state, thereby reducing the waiting time of the laser 1, avoiding the situation that "the board of the 3D printing device needs to send a light signal to the laser after a set waiting time, and in order to ensure that the galvanometer has reached the target position when the laser emits light, the waiting time will be set longer", thereby improving the working efficiency of the 3D printing device 100.

[0035] Please refer to Figure 2 , which is a flow chart of a laser light emitting method provided in an embodiment of the present application. This embodiment is applied to the 3D printing device of the aforementioned embodiment. The 3D printing device includes a laser, a galvanometer, and an oscillation detection device fixedly connected to the galvanometer. The method includes the following steps:

[0036] Step 101: After the laser completes the last scanning task, the laser is controlled to stop emitting laser light to the galvanometer.

[0037] In some embodiments, the 3D printing device includes a control circuit board. Each time the laser completes a scanning task, the control circuit board controls the laser to stop emitting light.

[0038] Specifically, the 3D printing device includes multiple scanning tasks during the printing process. Each scanning task requires the laser to emit laser light to hit the galvanometer, and the galvanometer reflects the laser light so that the laser scans on the printing work plane. The position of the galvanometer may be adjusted in each scanning task, so the laser will stop emitting light after completing each scanning task, and wait until the galvanometer moves to the position corresponding to the next scanning task, and then the laser will emit laser light to the galvanometer again.

[0039] Step 102: Control the galvanometer to move to the target position, and detect whether the galvanometer is in a stable state after moving to the target position according to the oscillation detection device.

[0040] In some embodiments, the 3D printing device also includes a galvanometer motor, which is connected to the galvanometer; controlling the galvanometer to move to the target position includes: sending a motion instruction to the galvanometer motor so that the galvanometer motor drives the galvanometer to move to the target position.

[0041] In some embodiments, the target position is the position of the galvanometer corresponding to the next scanning task of the aforementioned 3D printing device.

[0042] How to detect whether the galvanometer is in a stable state after moving to the target position according to the oscillation detection device is described in detail in subsequent embodiments, and will not be described again here to avoid repetition.

[0043] Step 103: After detecting that the galvanometer is in a stable state, controlling the laser to continue emitting laser light to the galvanometer.

[0044] In some embodiments, the control circuit board receives a stable signal sent by the oscillation detection device, and the stable signal is used to indicate that the galvanometer is in a stable state; the control circuit board then sends a light signal to the laser to enable the laser to continue to emit laser light to the galvanometer.

[0045] Compared with the related art, the embodiments of the present application have at least the following advantages: by providing an oscillation detection device fixedly connected to the galvanometer, after the galvanometer moves to the target position, the oscillation detection device can detect whether the galvanometer is in a stable state, and can immediately control the laser to continue to emit laser to the galvanometer after detecting that the galvanometer is in a stable state, thereby reducing the waiting time of the laser and avoiding the situation that "the board of the 3D printing device needs to send a light signal to the laser after a set waiting time, and in order to ensure that the galvanometer has reached the target position when the laser emits light, the waiting time will be set longer", thereby improving the working efficiency of the 3D printing device.

[0046] Please refer to Figure 3 , which is a flow chart of the laser light emitting method provided in an embodiment of the present application. This embodiment is a further explanation of the aforementioned embodiment, and specifically illustrates: how to detect whether the galvanometer is in a stable state after moving to the target position based on the oscillation detection device.

[0047] The specific process of this embodiment is as follows Figure 3 As shown, the following steps are included:

[0048] Step 201: After the laser completes the last scanning task, the laser is controlled to stop emitting laser light to the galvanometer.

[0049] Step 202: After the galvanometer moves to the target position, the oscillation detection device detects whether the galvanometer oscillates back and forth. When it is detected that the galvanometer does not oscillate back and forth, it is determined that the galvanometer is in a stable state.

[0050] In some embodiments, the oscillation detection device is a grating sensor; detecting whether the galvanometer oscillates back and forth based on the oscillation detection device includes: detecting whether the galvanometer reciprocates along the first direction and the second direction based on the grating sensor; wherein the first direction is opposite to the second direction.

[0051] In some embodiments, the movement of the galvanometer to the target position is determined in the following manner: detecting whether the galvanometer moves along a first direction close to the target position according to the oscillation detection device; and determining that the galvanometer moves to the target position when it is detected that the galvanometer does not move along the first direction.

[0052] Step 203: After detecting that the galvanometer is in a stable state, control the laser to continue emitting laser light to the galvanometer.

[0053] Compared with the related art, the embodiments of the present application have at least the following advantages: by providing an oscillation detection device fixedly connected to the galvanometer, after the galvanometer moves to the target position, the oscillation detection device can detect whether the galvanometer is in a stable state, and can immediately control the laser to continue to emit laser to the galvanometer after detecting that the galvanometer is in a stable state, thereby reducing the waiting time of the laser and avoiding the situation that "the board of the 3D printing device needs to send a light signal to the laser after a set waiting time, and in order to ensure that the galvanometer has reached the target position when the laser emits light, the waiting time will be set longer", thereby improving the working efficiency of the 3D printing device.

[0054] Please refer to Figure 4 , is a schematic diagram of the hardware structure of the electronic device 1000 provided in the embodiment of the present application. Figure 4 As shown, the electronic device 1000 may include a processor 1001 and a memory 1002. The memory 1002 is used to store one or more computer programs 1003. The one or more computer programs 1003 are configured to be executed by the processor 1001. The one or more computer programs 1003 include instructions, and the above instructions can be used to implement the above method in the electronic device 1000.

[0055] It is understandable that the structure shown in this embodiment does not constitute a specific limitation on the electronic device 1000. In other embodiments, the electronic device 1000 may include more or fewer components than shown, or combine or separate some components, or arrange the components differently.

[0056] The processor 1001 may include one or more processing units, for example, the processor 1001 may include an application processor (AP), a modem, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0057] The processor 1001 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 1001 is a cache memory. The memory may store instructions or data that the processor 1001 has just used or circulated. If the processor 1001 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 1001, and thus improves the efficiency of the system.

[0058] In some embodiments, the processor 1001 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a SIM interface, and / or a USB interface, etc.

[0059] In some embodiments, memory 1002 may include high-speed random access memory and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0060] This embodiment further provides a computer-readable storage medium, in which computer instructions are stored. When the instructions are executed on an electronic device, the electronic device executes the above-mentioned related method steps to implement the method in the above-mentioned embodiment.

[0061] Among them, the electronic device and computer storage medium provided in this embodiment are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0062] In practical applications, the above functions can be distributed to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0063] In several embodiments provided in the present application, the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are schematic. For example, the division of the modules or units is a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0064] The unit described as a separate component may or may not be physically separated, and the component shown as a unit may be one physical unit or multiple physical units, that is, it may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.

[0065] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0066] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code.

[0067] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A laser light emitting method, characterized in that: Applied to a 3D printing device, the 3D printing device includes a laser, a galvanometer, and an oscillation detection device fixedly connected to the galvanometer; the method includes: After the laser completes the last scanning task, controlling the laser to stop emitting laser light to the galvanometer; Controlling the galvanometer to move to a target position, and detecting whether the galvanometer is in a stable state after moving to the target position according to the oscillation detection device; After detecting that the galvanometer is in a stable state, the laser is controlled to continue emitting laser light to the galvanometer.

2. The laser light emitting method according to claim 1, characterized in that: The detecting, according to the oscillation detection device, whether the galvanometer is in a stable state after moving to the target position comprises: After the galvanometer moves to the target position, detecting whether the galvanometer oscillates back and forth according to the oscillation detection device; When it is detected that the galvanometer mirror does not oscillate back and forth, it is determined that the galvanometer mirror is in a stable state.

3. The laser light emitting method according to claim 2, characterized in that: The oscillation detection device is a grating sensor; the method of detecting whether the galvanometer oscillates back and forth according to the oscillation detection device includes: The grating sensor detects whether the galvanometer reciprocates along the first direction and the second direction; wherein the first direction is opposite to the second direction.

4. The laser light emitting method according to claim 2, characterized in that: The method further includes: determining that the galvanometer moves to the target position by: detecting, according to the oscillation detection device, whether the galvanometer moves in a first direction close to the target position; When it is detected that the galvanometer mirror does not move along the first direction, it is determined that the galvanometer mirror moves to the target position.

5. The laser light emitting method according to claim 1, characterized in that: The controlling the laser to continue emitting laser light to the galvanometer comprises: Receiving a stable signal sent by the oscillation detection device, wherein the stable signal is used to indicate that the galvanometer is in a stable state; An optical signal is sent to the laser so that the laser continues to emit laser light to the galvanometer.

6. The laser light emitting method according to claim 1, characterized in that: The 3D printing device further includes a galvanometer motor, which is connected to the galvanometer; and controlling the galvanometer to move to a target position includes: A motion instruction is sent to the galvanometer motor so that the galvanometer motor drives the galvanometer to move to the target position.

7. A 3D printing device, characterized in that: include: A laser, a galvanometer, an oscillation detection device connected to the galvanometer, and a control circuit board; The laser is used to emit laser light to the galvanometer; The control circuit board is used to control the laser to stop emitting laser light to the galvanometer after the laser completes the last scanning task; The control circuit board is also used to control the galvanometer to move to a target position, and the oscillation detection device is used to detect whether the galvanometer is in a stable state after moving to the target position; The control circuit board is also used to control the laser to continue emitting laser light to the galvanometer after the oscillation detection device detects that the galvanometer is in a stable state.

8. The 3D printing device according to claim 7, characterized in that: The oscillation detection device is a grating sensor; the oscillation detection device detects whether the galvanometer is in a stable state after moving to the target position, including: The grating sensor detects whether the galvanometer reciprocates along the first direction and the second direction; wherein the first direction is opposite to the second direction; If the galvanometer does not reciprocate along the first direction and the second direction after moving to the target position, the galvanometer is in the stable state.

9. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the memory is used to store instructions, and the processor is used to call the instructions in the memory, so that the electronic device executes the laser light emitting method according to any one of claims 1 to 6.

10. A storage medium, characterized in that: The method comprises computer instructions, and when the computer instructions are executed on an electronic device, the electronic device executes the laser light emitting method according to any one of claims 1 to 6.

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