Galvanometer protection lens automatic detection and cleaning protection system

Abstract

The application discloses a galvanometer protection lens automatic detection and cleaning protection system, which comprises a camera, a cleaning controller and a cleaning manipulator. The camera is used for shooting and detecting the galvanometer protection lens and feeding back detection information to the cleaning controller. The cleaning controller is used for judging whether the galvanometer protection lens is damaged and has dirt attached according to the obtained detection information and issuing a control instruction according to a judgment result. The cleaning manipulator is used for executing a galvanometer protection lens cleaning action according to the control instruction. The detection of the galvanometer protection lens cleanliness or damage condition is realized by using a mechanical arm, and cleaning or other necessary operations are executed according to the detection result. The labor intensity of an operator can be reduced, the cleaning quality and service life of the galvanometer protection lens are improved, and the overall cost of 3D printing is reduced.

Description

Technical Field

[0001] This invention relates to the field of laser 3D printing equipment technology, and in particular to an automatic detection and cleaning protection system for galvanometer protective lenses. Background Technology

[0002] The protective lenses of laser 3D printed galvanometers easily attract fine powder materials, including metals and non-metals such as polymers and plastic powders, as well as dust from the air. If they are not effectively cleaned before printing, the protective lenses will absorb laser light and become damaged. Cleaning the protective lenses is usually done by the 3D printing machine operator, who relies on their own visual inspection and judgment, and then manually wipes them with cotton balls or cloths soaked in alcohol. Manual inspection and judgment are susceptible to various factors, making them prone to errors and oversights, and the cleaning quality cannot be guaranteed. Furthermore, manual inspection is time-consuming and labor-intensive; finally, manual inspection and cleaning have adverse effects on human respiratory health, and respiration may also contaminate the powder materials. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides an automatic detection and cleaning protection system for galvanometer protective lenses. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general description, nor is it intended to identify key / important components or describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0004] The present invention adopts the following technical solution:

[0005] An automatic detection and cleaning protection system for galvanometer protective lenses is provided, comprising:

[0006] A camera is used to photograph and inspect the galvanometer protective lens and feed the inspection information back to the cleaning controller, the inspection information including the photographed images;

[0007] The cleaning controller is used to determine whether the protective lens of the galvanometer is damaged or has dirt attached, based on the acquired detection information, and to issue control commands based on the determination result.

[0008] A cleaning robot arm is used to perform cleaning actions on the protective lens of the galvanometer according to the control instructions.

[0009] Furthermore, the cleaning robot includes: a base, a first actuator, and a cleaning head; the base is disposed at the top of the inner cavity of the printer's printing chamber, the first actuator is disposed on the base, and the cleaning head is disposed on the first actuator.

[0010] Furthermore, the cleaning head includes: a housing, a cleaning cloth, a cleaning agent container, and a second actuator, wherein the cleaning agent container and the second actuator are disposed on the housing, and the cleaning cloth is disposed on the second actuator.

[0011] Furthermore, the cleaning controller includes: a data receiving module for acquiring detection information uploaded by the camera; an image analysis module for analyzing the detection information and determining whether the galvanometer protective lens is damaged or has dirt attached based on the analysis results; and a control output module for sending a control command to the cleaning robot when the image analysis module determines that there is dirt attached to the galvanometer protective lens, and for sending a control command to the alarm device to trigger an alarm when the determination result indicates that the galvanometer protective lens is damaged.

[0012] Furthermore, the cleaning controller also includes: an information acquisition module, used to acquire feedback information uploaded by the cleaning robot, the feedback information including information that cleaning has been completed; a secondary confirmation module, used to send a control command to the camera after acquiring the feedback information uploaded by the cleaning robot, notifying it to take another picture; and a feedback termination module, used to send feedback information to the printer main control system when the image analysis module determines that there is no dirt attached to the galvanometer protective lens.

[0013] Furthermore, the cleaning controller also includes a timing module for timing. When the timing reaches a preset time node, a control command is sent to the camera to notify it to perform shooting detection.

[0014] Furthermore, the cleaning controller also includes a wiping instruction module, used to acquire printing end instruction information issued by the printer main control system, and after receiving the printing end instruction information, to issue control instructions to the camera to notify it to take pictures.

[0015] Furthermore, the camera is mounted on the top of the inner cavity of the printer's printing chamber via a bracket, and a mounting plate is provided at the lower end of the bracket. The mounting plate has a certain angle with the horizontal plane, so that the camera mounted on the mounting plate is in an inclined state.

[0016] The beneficial effects of this invention are as follows: by using a robotic arm to detect the cleanliness or damage of the protective lens of the galvanometer, and to perform cleaning or other necessary operations based on the detection results, it can not only reduce the labor intensity of operators, but also improve the cleaning quality and service life of the protective lens of the galvanometer, thereby reducing the overall cost of 3D printing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a module of an automatic detection and cleaning protection system for galvanometer protective lenses according to the present invention;

[0019] Figure 2 This is a schematic diagram showing the location of the automatic detection and cleaning protection system for galvanometer protective lenses of the present invention on the printer;

[0020] Figure 3 yes Figure 2 AA view;

[0021] Figure 4 This is a schematic diagram of the structure of an automatic detection and cleaning protection system for galvanometer protective lenses according to the present invention;

[0022] Figure 5 This is a schematic diagram of the cleaning robot arm of the present invention. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1-5 As shown, the present invention provides an automatic detection and cleaning protection system for galvanometer protective lenses, including: a camera 1, a cleaning controller 2, and a cleaning robot 3.

[0025] Cleaning controller 2 is an additive manufacturing cleaning controller or a 3D printer cleaning controller.

[0026] A protective lens 4 is installed below the galvanometer to block the smoke and dust generated during printer operation, preventing metal and non-metal powders used in printing from contaminating the galvanometer and thus maintaining its cleanliness during the printing process. The detection and cleaning system provided by this invention mainly performs cleaning operations on the protective lens 4.

[0027] Camera 1 is used to photograph and inspect the galvanometer protective lens 4 and feed the inspection information back to the cleaning controller 2. The inspection information includes the photographed images. In other words, camera 1 is mainly used to perform visual photography of the galvanometer protective lens 4 and provide the photographed images to the cleaning controller 2 for subsequent processing and analysis.

[0028] The cleaning controller 2 is used to determine whether the galvanometer protective lens 4 is damaged or has dirt attached, based on the acquired detection information, and to issue control commands according to the judgment result. Specifically, the cleaning controller 2 receives the detection information sent by the camera 1 and analyzes the detection information. After detecting that the surface of the galvanometer protective lens 4 is dirty, that is, that dust or other dirt is attached, it can control the cleaning robot 3 to perform an automatic wiping action on the galvanometer protective lens 4. It also issues an alarm when it detects damage to the galvanometer protective lens 4, such as cracks.

[0029] The cleaning controller 2 can specifically use a PLC to receive, process, and analyze data, and combine it with an image processor to recognize and process image data, thereby analyzing the images uploaded by the camera 1, that is, detecting whether there is dirt or damage on the galvanometer protective lens 4. For example, it can detect the data difference between the original image and the captured image. When the difference exceeds a threshold, it can be determined that there is dirt or damage on the galvanometer protective lens 4. The specific detection method can adopt existing visual image processing methods.

[0030] The cleaning robot 3 is used to perform cleaning actions on the galvanometer protective lens 4 according to the control instructions issued by the cleaning controller 2. The cleaning action refers to the action of wiping the galvanometer protective lens 4.

[0031] The cleaning robot 3 includes: a base 301, a first actuator 302, and a cleaning head 303.

[0032] The base 301 is located at the top of the inner cavity of the printer printing chamber 5. The printer printing chamber 5 is the working chamber for laser 3D printer printing and is the core working area of ​​laser 3D printer. A printer galvanometer is installed on the top, and a galvanometer protective lens 4 is installed below the printer galvanometer. The printer printing chamber 5 is used to support and install the various components involved in this invention.

[0033] The first actuator 302 is mounted on the base 301, and the cleaning head 303 is mounted on the first actuator 302. The first actuator 302 is controlled by the cleaning controller 2 and is mainly used to move the cleaning head 303 below the galvanometer protective lens 4. Specifically, the first actuator 302 can use any existing rotating mechanism to move the cleaning head 303. For example, the first actuator 302 can be implemented by a rotary motor and a support beam. The rotary motor is mounted on the base 301, and one end of the support beam is connected to the power output shaft of the rotary motor, while the other end is connected to the cleaning head 303. When the rotary motor rotates forward / reverse, the support beam swings back and forth, thereby moving the cleaning head 303 directly below or away from the galvanometer protective lens 4.

[0034] The cleaning head 303 includes: a housing 304, a cleaning cloth 306, a cleaning agent container 305, and a second actuator 307. The cleaning agent container 305 and the second actuator 307 are mounted on the housing 304, the housing 304 is mounted on the first actuator 302, and the cleaning cloth 306 is mounted on the second actuator 307.

[0035] Specifically, the second actuator 307 is used to move the cleaning cloth 306 to the position of the galvanometer protective lens 4 and make it fit against it, driving it to rotate to wipe the lens. This action can be achieved using any existing rotating or telescopic mechanism. For example, the second actuator 307 can be implemented using a linear cylinder, a rotary motor, and a plate. The fixed end of the linear cylinder is connected to the housing 304, the moving end of the linear cylinder is connected to the rotary motor via a motor mount, and the plate is connected to the power output shaft of the rotary motor. The cleaning cloth 306 is placed on the plate, allowing the linear cylinder to raise the height of the cleaning cloth 306 to fit against the galvanometer protective lens 4. The rotary motor drives the cleaning cloth 306 to rotate to complete the wiping action. The cleaning agent in the cleaning agent container 305 can be pumped to the position of the cleaning cloth 306 using a pump and hose.

[0036] The cleaning controller 2 includes: a data receiving module, an image analysis module, a control output module, an information acquisition module, a secondary confirmation module, and a feedback termination module.

[0037] The data receiving module is used to acquire the detection information uploaded by camera 1, that is, to receive the detection information sent by camera 1.

[0038] The image analysis module analyzes the detection information uploaded by camera 1 and determines whether the protective lens of the galvanometer is damaged or has dirt on it based on the analysis results. For example, it can detect the data difference between the original image and the captured image. If the difference exceeds a threshold, it can be determined that the protective lens of the galvanometer 4 has dirt on it or is damaged. The specific detection method can use existing visual image processing methods.

[0039] The control output module is used to send control commands to the cleaning robot when the image analysis module determines that there is dirt on the galvanometer protective lens, and to send control commands to the alarm device to trigger an alarm when the determination result is that the galvanometer protective lens is damaged. When dirt is detected, the control commands mainly instruct the various mechanisms of the cleaning robot 3 to perform actions according to a preset route and preset movement time, thereby completing the wiping action of the lens. Specifically, it controls the first actuator 302 and the second actuator 307 to perform actions.

[0040] The information acquisition module is used to acquire feedback information uploaded by the cleaning robot 3, which includes information indicating that cleaning has been completed. After the cleaning robot 3 completes the first wiping action, it sends a feedback message to the information acquisition module to notify the cleaning controller 2 that cleaning has been completed, so that the cleaning controller 2 can execute the next procedure, such as a secondary confirmation procedure, that is, to confirm whether the first wiping has met the standard.

[0041] The secondary confirmation module is used to send control commands to camera 1 after the information acquisition module receives feedback information uploaded by the cleaning robot, notifying it to take another picture. After taking the picture, camera 1 uploads the detection information to the image analysis module for processing and analysis to determine whether there is still dirt. If the determination result is still that there is dirt attached, the control output module sends control commands to the cleaning robot, and the controller performs a second wipe, or more, until the image analysis module determines that there is no dirt attached.

[0042] The feedback termination module is used to send feedback information to the printer's main control system when the image analysis module determines that there is no dirt attached to the galvanometer protective lens, so that the printer's main control system can execute other processes, such as continuing printing.

[0043] In one embodiment, the cleaning controller 2 further includes a timing module for timing. When the timing reaches a preset time node, a control command is sent to the camera 1 to notify it to perform shooting detection, that is, to automatically perform lens wiping action at every time interval to ensure cleanliness.

[0044] In one embodiment, the cleaning controller 2 further includes a wiping instruction module, used to acquire printing end instruction information issued by the printer's main control system, and upon receiving the printing end instruction information, to issue a control instruction to the camera 1, notifying it to take a picture. This ensures that after each printing operation, the lens is automatically wiped to maintain cleanliness.

[0045] Camera 1 is mounted on the top of the inner cavity of the printer chamber 5 via bracket 6, which makes it easy to observe the appropriate position of the galvanometer protective lens. The lower end of bracket 6 is provided with mounting plate 7, which has a certain angle with the horizontal plane, so that camera 1 mounted on mounting plate 7 is tilted. The mounting posture is easy to adjust, so as to align with the galvanometer protective lens 4 without affecting the printing operation and wiping action.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A galvanometer protection lens automatic detection and cleaning protection system, characterized in that, include: A camera is used to photograph and inspect the protective lens of the galvanometer and feed the inspection information back to the cleaning controller. The inspection information includes the photographed images. The camera is mounted on the top of the inner cavity of the printer chamber via a bracket, and a mounting plate is provided at the lower end of the bracket. The mounting plate has a certain angle with the horizontal plane, so that the camera mounted on the mounting plate is in a tilted state. The cleaning controller is used to determine whether the protective lens of the galvanometer is damaged or has dirt attached, based on the acquired detection information, and to issue control commands based on the determination result. A cleaning robot arm is used to perform cleaning actions on the protective lens of the galvanometer according to the control instructions; The cleaning robot includes: a base, a first actuator, and a cleaning head; the base is disposed at the top of the inner cavity of the printer's printing chamber, the first actuator is disposed on the base, and the cleaning head is disposed on the first actuator; The cleaning head includes: a housing, a cleaning cloth, a cleaning agent container, and a second actuator. The cleaning agent container and the second actuator are disposed on the housing, and the cleaning cloth is disposed on the second actuator.

2. A mirror protection mirror automatic detection and cleaning protection system according to claim 1, characterized in that, The cleaning controller includes: A data receiving module is used to acquire the detection information uploaded by the camera; The image analysis module is used to analyze the detection information and determine whether the protective lens of the galvanometer is damaged or has dirt on it based on the analysis results. The control output module is used to send control commands to the cleaning robot when the image analysis module determines that there is dirt on the galvanometer protective lens, and to send control commands to the alarm device to trigger an alarm when the image analysis module determines that the galvanometer protective lens is damaged.

3. A mirror protection mirror automatic detection and cleaning protection system according to claim 2, characterized in that, The cleaning controller also includes: The information acquisition module is used to acquire feedback information uploaded by the cleaning robot, the feedback information including information that cleaning has been completed; The secondary confirmation module is used to send control commands to the camera after receiving feedback information uploaded by the cleaning robot, notifying it to take pictures again; The feedback termination module is used to send feedback information to the printer main control system when the image analysis module determines that there is no dirt attached to the galvanometer protective lens.

4. A mirror protection mirror automatic detection and cleaning protection system according to claim 3, characterized in that, The cleaning controller also includes a timing module for timing. When the timing reaches a preset time node, a control command is sent to the camera to notify it to perform shooting detection.

5. A mirror protection mirror automatic detection and cleaning protection system according to claim 4, characterized in that, The cleaning controller further includes a wiping instruction module, which is used to obtain printing end instruction information issued by the printer main control system, and after receiving the printing end instruction information, to issue control instructions to the camera to notify it to take pictures.

Images