A laser processing control method

Abstract

This invention relates to the field of laser processing technology and discloses a laser processing control method that can improve the safety and accuracy of laser ablation. The invention includes a control module, a human feature signal recognition module, a control switch module, a stage, a laser module, a beam shaping module, and a focusing module. The control module can be used to execute the laser processing method or laser processing control method of this invention. This invention can determine the laser parameters matching the workpiece and the movement path during processing, thereby enabling the output of lasers with corresponding parameters according to different workpieces and completing directional processing. Furthermore, by simultaneously recognizing the first human feature signal of the processing personnel and matching it with pre-reserved information, it can determine whether the current employee has the corresponding processing authority, restricting unauthorized personnel from starting the laser processing device, thus improving safety and reliability and reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and in particular to a laser processing control method. Background Technology

[0002] In the industry of micro-display products such as Micro LED / Micro OLED and Mini LED, there is a process requirement to remove a transparent cover film on the pin area during the manufacturing process. This cover film is typically composed of layers of different materials such as alumina, titanium dioxide, and silicon nitride, and some also include an organic polymer layer. The overall thickness of this cover film is approximately 1 micrometer, making laser removal a suitable method. However, ordinary lasers are difficult to remove precisely and completely, and can easily damage the underlying metal layers and other materials. Furthermore, existing laser processing equipment can be turned on by anyone simply by pressing a start switch, posing a safety hazard. Additionally, existing laser processing equipment lacks operational authorization settings, and there are no appropriate restrictions when personnel need to be replaced during the workflow or for other reasons, which can easily lead to safety accidents or product damage due to improper operation. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a laser processing method that can improve the processing safety and accuracy of laser ablation.

[0004] The present invention also proposes a laser processing apparatus having the above-described laser processing method.

[0005] On one hand, a laser processing method according to an embodiment of the present invention includes:

[0006] When a start signal is received, the first human body feature signal of the current processing personnel and the processing image signal of the workpiece to be processed are obtained, and the first human body feature signal and the processing image signal are compared with the reserved information.

[0007] When the first human feature signal is successfully paired with the processing image signal, the laser parameters and processing movement path information bound to the corresponding reserved information are determined, and the workpiece to be processed is transported to the processing area.

[0008] When a processing signal is received, the corresponding laser is output according to the laser parameters, and the workpiece to be processed is moved in a directional manner according to the processing movement path information, so as to cooperate with the laser to complete the corresponding processing on the workpiece;

[0009] Once the workpiece has been processed, the laser output is stopped, and the workpiece is transported to the loading and unloading area.

[0010] According to some embodiments of the present invention, the laser parameters include laser dimension information corresponding to the workpiece to be processed, and further include the following steps:

[0011] Adjust the size parameters of the laser spot based on the laser size information.

[0012] According to some embodiments of the present invention, the laser parameters also include laser parameters corresponding to the workpiece to be processed. Before performing laser processing on the workpiece when the pairing is successful, the power of the laser is adjusted according to the laser parameters.

[0013] According to some embodiments of the present invention, the laser parameters further include laser wavelength information corresponding to the workpiece to be processed. Before performing laser processing on the workpiece when the pairing is successful, the laser wavelength parameters are adjusted according to the laser wavelength information.

[0014] According to some embodiments of the present invention, the processing signal is issued by the current operator pressing the processing switch.

[0015] On the other hand, a laser processing apparatus according to an embodiment of the present invention includes a control module, a human feature signal recognition module, a control switch module, a stage, a laser module, a beam shaping module, and a focusing module; the control module is used to execute the laser processing method as described in the above embodiment of the present invention; the human feature signal recognition module is electrically connected to the control module; the control switch module is electrically connected to the control module; the stage is used to place and move the workpiece to be processed; the laser module is used to output laser light and is electrically connected to the control module; the beam shaping module is placed in the output optical path of the laser module and is electrically connected to the control module, and is capable of shaping the laser light output by the laser module; the focusing module is located in the output optical path of the beam shaping module and outputs focused laser light to the workpiece to be processed on the stage.

[0016] According to some embodiments of the present invention, a positioning camera module is further included for acquiring an image of the workpiece to be processed in order to determine the position of the workpiece.

[0017] In some embodiments of the present invention, the human body feature signal recognition module includes at least a human body recognition chip and a human body feature recognizer.

[0018] According to some embodiments of the present invention, the laser module includes an excimer laser for outputting laser light.

[0019] According to some embodiments of the present invention, the laser module further includes at least one first reflecting mirror, which is disposed in the optical path between the excimer laser and the beam shaping module, so that the laser light from the excimer laser can be transmitted into the beam shaping module.

[0020] According to some embodiments of the present invention, the control switch module includes a run switch and a processing switch; the run switch is used to start a signal; and the processing switch is used to output the processing signal.

[0021] The embodiments of the present invention have at least the following beneficial effects: By simultaneously identifying the first human body feature signal of the processing personnel and the processing image signal of the workpiece, the laser parameters matching the workpiece and the movement path during processing can be determined. This enables the output of lasers with corresponding parameters according to different workpieces and completes directional processing, ensuring that the laser can only peel off the material layer that needs to be removed from the surface of the workpiece and avoids damaging the metal layer underneath. In addition, since the first human body feature signal of the processing personnel is simultaneously identified and matched with the reserved information, it can be determined whether the current employee has the corresponding processing authority. This can restrict unauthorized personnel from starting the laser processing device, which not only improves safety but also avoids damage to the workpiece due to improper operation, improves reliability, and reduces production costs.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the structure of the laser processing apparatus according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a laser processing apparatus according to another embodiment of the present invention;

[0026] Figure 3 This is a schematic flowchart of the laser processing method according to Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic flowchart of the laser processing method according to Embodiment 2 of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a laser processing apparatus according to another embodiment of the present invention;

[0029] Figure 6This is a schematic flowchart of the laser processing control method according to Embodiment 3 of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of a laser processing apparatus according to another embodiment of the present invention;

[0031] Figure 8 This is a schematic flowchart of the laser processing control method according to Embodiment 4 of the present invention;

[0032] Figure 9 This is a schematic flowchart of the laser processing control method according to Embodiment 5 of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of a laser processing apparatus according to another embodiment of the present invention;

[0034] Figure 11 This is a schematic flowchart of the laser processing control method according to Embodiment Six of the present invention.

[0035] Figure label:

[0036] label name label name 100 Control module 620 First reflecting mirror 200 Human Feature Signal Recognition Module 700 Beam shaping module 300 Control switch module 710 Second reflecting mirror 400 Platform 800 Focusing module 500 Positioning camera module 900 Card recognition module 600 laser module 1000 Clip-on module 610 excimer laser Detailed Implementation

[0037] The following will provide a clear and complete description of the concept, specific structure, and technical effects of the present invention in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0038] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," "right," "top," and "bottom" used in this invention are only relative to the relative positional relationships of the various components of the invention in the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, when one feature is referred to as having an "electrical connection" with another feature, the two features can be connected directly via pins, via cables, or via wireless transmission. Specific electrical connection methods are common to those skilled in the art, and they can implement the connection as needed.

[0040] Furthermore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and not for limiting the invention. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0041] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from one another. For example, without departing from the scope of this disclosure, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element.

[0042] On the one hand, refer to Figure 1 According to an embodiment of the present invention, a laser processing apparatus includes a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, and a focusing module 800. The control module 100 can be used to execute the laser processing method or laser processing control method as described in the embodiment of the present invention. The human feature signal recognition module 200 is electrically connected to the control module 100. The control switch module 300 is electrically connected to the control module 100. The stage 400 is used to place and move the workpiece to be processed. The laser module 600 is used to output laser light and is electrically connected to the control module 100. The beam shaping module 700 is placed in the output optical path of the laser module 600 and is electrically connected to the control module 100, and can shape the laser light output by the laser module 600. The focusing module 800 is disposed in the output optical path of the beam shaping module 700 and outputs the focused laser light to the workpiece to be processed on the stage 400.

[0043] The control module 100 can control the laser module 600 to output laser with corresponding parameters. After being shaped by the beam shaping module 700, the laser becomes a spot of corresponding size or shape. The shaped laser is then focused by the focusing module 800 and transmitted to the surface of the workpiece on the carrier. The human feature signal recognition module 200 is used to identify the human feature signals of the current processing personnel to confirm whether the current processing personnel have the corresponding permissions. In conjunction with the control switch module 300, it controls the laser module 600 to output laser with corresponding parameters. The control module 100 can control the laser module 600 to output laser with corresponding power or wavelength. The control module 100 can also control the beam shaping module 700 to adjust the state of the beam shaping module 700, thereby outputting a spot of corresponding shape or size. It should be noted that the stage 400 is equipped with a drive source, which can drive the stage 400 to move parallel within a plane range, thereby enabling the directional movement of the workpiece. The specific structure of the control module 100, the structure of the stage 400, and the driving method are conventional technical means in this field and will not be described in detail here.

[0044] In some embodiments of the present invention, the human body feature signal recognition module 200 includes at least a human body recognition chip and a human body feature recognizer; the human body feature recognizer is used to collect human body feature signals; the human body recognition chip is used to recognize the human body feature signals acquired by the human body feature recognizer using a human body recognition algorithm to obtain a human body recognition result. The human body recognition algorithm includes at least one of the following: vein recognition algorithm, fingerprint feature recognition algorithm, iris recognition algorithm, retinal recognition algorithm, face recognition algorithm, or voiceprint recognition algorithm. Depending on the corresponding recognition algorithm, the human body feature recognizer can be a specialized vein recognizer, fingerprint recognizer, iris recognizer, retinal recognizer, face recognizer, or voiceprint recognizer. The specific selection can be made based on actual needs to recognize the human body feature signals of the processing personnel. It should be noted that the human body recognition algorithm can use conventional recognition algorithms for recognizing human body feature signals, which will not be described in detail here.

[0045] Reference Figure 2 In some embodiments of the present invention, a positioning camera module 500 is further included to acquire an image of the workpiece to be processed in order to determine the position of the workpiece. In conjunction with the positioning camera module 500, not only can the image information and position information of the workpiece be identified, but feedback can also be given to the control module 100 to control the stage 400 to move the workpiece according to a pre-set movement path, and to work with the laser to peel off the surface material layer of the workpiece.

[0046] In some embodiments of the present invention, the laser module 600 includes an excimer laser 610 for outputting laser light. The excimer laser 610 possesses high single-pulse energy, with a short wavelength output laser ranging from 105 nm to 308 nm and a single-pulse energy exceeding 100 microjoules. It can directly vaporize and blast away the material in the stripping zone of the workpiece, achieving efficient stripping without damaging the underlying material, thus effectively improving the precision of laser processing.

[0047] In some embodiments of the present invention, the laser module 600 further includes at least one first reflecting mirror 620, which is disposed in the optical path between the excimer laser 610 and the beam shaping module 700, so that the laser light from the excimer laser 610 can be transmitted into the beam shaping module 700. With the cooperation of the first reflecting mirror 620, the laser light can be transmitted in a specified direction, thereby achieving effective and precise transmission within a limited space. Those skilled in the art can select an appropriate number of first reflecting mirrors 620, a suitable angle setting, and a suitable placement at the required location according to the actual situation.

[0048] In some embodiments of the present invention, the control switch module 300 includes a run switch and a processing switch; the run switch is used to send a start signal; and the processing switch is used to output a processing signal. The inclusion of a run switch and a processing switch facilitates the operation of the control module 100 by the operator, improving convenience.

[0049] In some embodiments of the present invention, the structure of the beam shaping module 700 is a conventional technology in the art, such as a slit device commonly used in the art. In this embodiment, the beam shaping module 700 includes four blades and a motor structure. The four blades are distributed around each other, forming a rectangular hole in the middle. With the drive of the motor, the position of the four blades can be adjusted, thereby adjusting the size of the rectangle, and thus changing the size of the light spot transmitted through the beam shaping module 700. The control module 100 can control the motor according to the size in the set laser parameters so that the rectangle can be adjusted to the required size, and the required laser spot size can be output, improving convenience.

[0050] Reference Figure 1 or Figure 2 In some embodiments of the present invention, at least one second reflecting mirror 710 is further included between the beam shaping module 700 and the focusing module 800, so that the laser optical path can be adjusted according to the actual site conditions, so that the laser output by the beam shaping module 700 can be transmitted to the focusing module 800. In addition, in this embodiment, the focusing module 800 uses a focusing mirror, which can focus the laser to increase the laser energy and thus ensure the accuracy of laser processing.

[0051] Reference Figure 2 and Figure 3 As an example of embodiment one, the laser processing method according to the present invention is applied to the laser processing apparatus of the present invention. The laser processing apparatus includes at least a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, a focusing module 800, and a positioning camera module 500. The laser processing method includes the following steps:

[0052] S110. When a start signal is received, the first human body feature signal of the current processing personnel and the processing image signal of the workpiece to be processed are obtained, and the first human body feature signal and the processing image signal are compared with the reserved information.

[0053] S210. When the first human feature signal is successfully paired with the processing image signal, determine the laser parameters and processing movement path information bound to the corresponding reserved information, and transport the workpiece to be processed to the processing area.

[0054] S310. When a processing signal is received, the corresponding laser is output according to the laser parameters, and the workpiece to be processed is moved in a directional manner according to the processing movement path information, so as to cooperate with the laser to complete the corresponding processing of the workpiece.

[0055] S410. After the workpiece is processed, stop the laser output and transport the workpiece to the loading and unloading area.

[0056] It should be noted that the operator can press the start switch to input a start signal, thereby activating the control module 100 to execute step S110. In step S110, the human feature signal recognition module 200 can acquire the first human feature signal through fingerprint recognition, pupil recognition, face recognition, etc. The specific acquisition methods are conventional techniques for those skilled in the art. Similarly, the specific methods for the positioning camera module 500 to acquire the processing image signal are also conventional techniques for those skilled in the art. The two techniques will not be described in detail here. After acquiring the first human feature signal, it is necessary to determine the corresponding identity information and confirm the information of the workpiece to be processed corresponding to the processing image signal. The reserved information can be stored in the permission card, the memory of the control module 100, or the cloud in the background of the laser processing device. In this embodiment, it should be noted that the reserved information includes multiple sets. Each set of reserved information includes mutually bound identity information, workpiece information, laser parameters, and processing movement path. In addition to determining whether the identity information corresponding to the first human feature signal and the workpiece information corresponding to the processing image signal already exist in the reserved information, it is also necessary to determine whether the identified identity information and workpiece information match. The information in the same set of reserved information, that is, the identity information in the system that matches the corresponding workpiece information, needs to be determined when acquiring the first human feature signal and the processing image signal. If the match is successful, step S210 is executed. If the match fails, step S110 is executed until success is achieved.

[0057] In step S210, when it is determined that the collected first human feature signal matches the processing image signal, the corresponding laser parameters and processing movement path information of the same group are determined simultaneously, and the identified workpiece to be processed is moved to the processing area to wait for the processing signal.

[0058] In step S310, when it is determined that the workpiece to be processed has moved to the processing area, the current processing operator presses the processing switch to input a processing signal. When the processing signal is received, the corresponding laser is output according to the laser parameters in step S210. At the same time, the workpiece to be processed is directionally moved according to the processing movement path information determined in step S210. Specifically, the control module 100 controls the stage 400 to move directionally according to the determined processing movement path information. During the movement, the positioning camera module 500 works in sync to determine the position of the workpiece to be processed on the stage 400, thereby adjusting the movement path of the stage 400 in real time to cooperate with the laser to complete the corresponding processing of the workpiece to be processed. In this embodiment, the laser processing is to peel off the material layer that needs to be removed from the surface of the workpiece to be processed. It should be noted that the laser parameters include the laser size information, laser power information, and laser wavelength information corresponding to the workpiece to be processed.

[0059] In step S410, after the workpiece is moved in a directional manner and processed by the laser, the control module 100 controls the laser module 600 to stop outputting the laser, and the control module 100 controls the stage 400 to transport the workpiece to the loading and unloading area, so as to facilitate the replacement of the next batch of workpieces that need to be peeled off.

[0060] In this embodiment, by setting the identity information of each matched processing personnel, the information of the workpiece to be processed, the laser parameters, and the movement path information, it is possible to restrict the processing personnel to only process the matched workpieces to be processed. At the same time, it is possible to restrict the laser processing device to only output the laser parameters required by the workpiece to be processed, and to process according to the processing movement path information set by the system. This not only prevents unauthorized processing personnel from operating the laser processing device, but also prevents authorized processing personnel from arbitrarily outputting lasers with different parameters. It can avoid accidents and prevent unnecessary damage to the workpiece due to excessive laser power, effectively improving the reliability of laser processing.

[0061] Reference Figure 2 and Figure 4 As an embodiment two, the laser processing method of the present invention is applied to the laser processing apparatus in the above embodiments of the present invention. The laser processing apparatus includes at least a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, a focusing module 800, and a positioning camera module 500. The laser processing method includes the following steps:

[0062] S120. When a start signal is received, the first human body feature signal of the current processing personnel and the processing image signal of the workpiece to be processed are obtained, and the first human body feature signal and the processing image signal are compared with the reserved information.

[0063] S220. When the first human body feature signal is successfully paired with the processing image signal, the laser parameters and processing movement path information bound to the corresponding reserved information are determined. At the same time, the identity information in the reserved information matched by the first human body feature signal is set as the running judgment benchmark, and the workpiece to be processed is transported to the processing area.

[0064] S320. When a processing signal is received, the second human body feature signal of the current processing personnel is acquired again. The second human body feature signal is compared with the operation judgment benchmark. When the pairing is successful, the corresponding laser is output according to the laser parameters, and the workpiece to be processed is moved in an directional manner according to the processing movement path information to cooperate with the laser to complete the corresponding processing of the workpiece to be processed.

[0065] S420. After the workpiece is processed, stop the laser output and transport the workpiece to the loading and unloading area.

[0066] It should be noted that in step S120, after acquiring the first human feature signal, it is necessary to determine the corresponding identity information and the information of the workpiece to be processed corresponding to the processing image signal. The reserved information is the information pre-stored in the background database of the system. In this embodiment, it should be noted that the reserved information includes multiple sets. Each set of reserved information includes mutually bound identity information, workpiece information, laser parameters, and processing movement path. In addition to determining whether the identity information corresponding to the first human feature signal and the workpiece information corresponding to the processing image signal already exist in the reserved information, it is also necessary to determine whether the identified identity information and workpiece information match. Information belonging to the same set of reserved information, that is, identity information existing in the system that matches the corresponding workpiece information, needs to be determined when acquiring the first human feature signal and the processing image signal. If the match is successful, step S220 is executed; if the match fails, step S120 is executed until success is achieved.

[0067] In step S220, when it is determined that the first human feature signal collected matches the processing image signal, the corresponding laser parameters and processing movement path information of the same group are determined simultaneously. At this time, the currently determined identity signal needs to be set as the running judgment benchmark, and then the identified workpiece to be processed is moved to the processing area to wait for the processing signal.

[0068] In step S320, when it is determined that the workpiece to be processed has moved to the processing area, the current processing personnel press the processing switch to input the processing signal. When the processing signal is received, the second human body feature signal of the current processing personnel is collected again to determine whether the identity information corresponding to the second human body feature signal matches the running judgment benchmark in step S220. If the verification fails, the system continues to wait for the next processing signal. If the pairing is successful, the corresponding laser is output according to the laser parameters in step S220. At the same time, the workpiece to be processed is directionally moved according to the processing movement path information determined in step S220. Specifically, the control module 100 controls the stage 400 to move directionally according to the determined processing movement path information. During the movement, the positioning camera module 500 is used in sync to determine the position of the workpiece to be processed on the stage 400, thereby adjusting the movement path of the stage 400 in real time to cooperate with the laser to complete the corresponding processing of the workpiece to be processed. In this embodiment, the laser processing is to peel off the material layer that needs to be removed from the surface of the workpiece to be processed.

[0069] In step S420, after the workpiece is moved in a directional manner and processed by the laser, the control module 100 controls the laser module 600 to stop outputting the laser, and the control module 100 controls the stage 400 to transport the workpiece to the loading and unloading area, so as to facilitate the replacement of the next batch of workpieces that need to be peeled off.

[0070] In this embodiment, the difference between Embodiment 2 and Embodiment 1 is that: in step S220, a running judgment benchmark is set, and before outputting the laser in step S320, the current processing personnel are collected and judged a second time. This can avoid unexpected situations. For example, if the current processing personnel leave temporarily after executing steps S120 and S220, and no running judgment benchmark is set, any other person can start the laser processing device by pressing the processing button. This may result in unreasonable processing of the workpiece, which could lead to multiple processing of the workpiece or malicious operation by other personnel, thus affecting the processing... Damage to parts or accidents can easily increase production costs or cause unnecessary harm. Therefore, before outputting the corresponding laser in step S320, it is necessary to reconfirm whether the current processing personnel are the same person. This can prevent other personnel from starting the laser processing device, thus restricting each processing personnel to complete steps S120, S220, S320, and S420 individually before personnel can be replaced. This can prevent the parts to be processed from being processed multiple times, and can also prevent accidents caused by improper operation by other personnel. This effectively improves safety and reliability, and can also avoid increasing unnecessary production costs.

[0071] Reference Figure 5 and Figure 6 This is Example 3, a laser processing control method applied to the laser processing apparatus in the above embodiments of the present invention. The laser processing apparatus includes at least a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, a focusing module 800, and a card recognition module 900. The laser processing control method includes the following steps:

[0072] S130. When a start signal is received, obtain the signal from the access card and determine the reserved information corresponding to the access card. The reserved information includes at least laser parameters and processing personnel information.

[0073] S230. Obtain the first human body feature signal of the current processing personnel, and compare the first human body feature signal with the processing personnel information;

[0074] S330. When the pairing is successful, determine the identity information corresponding to the first human body feature signal, set the identity information as the operation judgment benchmark, and transport the workpiece to be processed to the processing area.

[0075] S430. When a processing signal is received, the second human body feature signal of the current processing personnel is acquired again. The second human body feature signal is compared with the operation judgment benchmark. When the pairing is successful, the corresponding laser is output according to the laser parameters to perform laser processing on the workpiece.

[0076] S530. After the workpiece is processed, stop the laser output and transport the workpiece to the loading and unloading area.

[0077] It should be noted that, unlike the above embodiments, the laser processing device adds a card identification module 900 for the authorization card. The card identification technology in the card identification module 900 is a conventional technical means in the art and will not be described in detail here. In addition, in step S130, the signal of the authorization card is obtained by the processing personnel inserting the authorization card and then identifying it. The authorization card is bound to the corresponding reserved information, which includes at least the matching laser parameters and the processing personnel information. This can restrict the processing personnel matched with the authorization card to only operate the laser that is matched with the authorization card, thereby limiting the operation authority of the processing personnel, avoiding the output of laser with excessive power, and preventing safety accidents or damage to the workpiece.

[0078] In steps S230 and S330, when it is determined that the collected first human feature signal matches the identity information in the authorization card, the currently determined identity signal needs to be set as the running judgment benchmark, and then the identified workpiece to be processed is moved to the processing area to wait for the processing signal.

[0079] In step S430, when it is determined that the workpiece to be processed has moved to the processing area, the current processing personnel press the processing switch to input the processing signal. When the processing signal is received, the second human body feature signal of the current processing personnel is collected again to determine whether the identity information corresponding to the second human body feature signal matches the running judgment benchmark in step S330. If the verification fails, the process continues to wait for the next processing signal. If the pairing is successful, the corresponding laser is output according to the laser parameters in step S130. In this embodiment, laser processing is used to peel off the material layer that needs to be removed from the surface of the workpiece.

[0080] In step S530, after the workpiece is processed by laser in conjunction with the directional movement, the control module 100 controls the laser module 600 to stop outputting laser, and the control module 100 controls the stage 400 to transport the workpiece to the loading and unloading area, so as to facilitate the replacement of the next batch of workpieces that need to be peeled off.

[0081] In this embodiment, by setting the identity information and laser parameters of each matched processing personnel, the processing personnel can be restricted to operating the laser processing device to output the corresponding laser at the set laser power. If the currently identified first human feature signal does not match the identity information of the authorization card, the laser processing device cannot be started. This not only prevents unauthorized processing personnel from operating the laser processing device, but also prevents authorized processing personnel from arbitrarily outputting lasers with different parameters. This can prevent accidents and avoid unnecessary damage to the workpiece due to excessive laser power, effectively improving the reliability of laser processing. Furthermore, by setting the operation judgment benchmark in step S330 and performing a second data acquisition and judgment on the current processing personnel before outputting the laser in step S430, unexpected situations can be avoided. For example, if the current processing personnel leaves temporarily after executing steps S130, S230, and S330, and no operation judgment benchmark has been set, any other person could press the processing button to start the laser processing device, which might lead to unreasonable processing of the workpiece. This could result in the workpiece being processed multiple times or malicious operation by other personnel, thereby damaging the workpiece or causing unintended consequences. External accidents can easily increase production costs or cause unnecessary harm. Therefore, before outputting the corresponding laser in step S430, it is necessary to reconfirm whether the current processing personnel are the same person. This can prevent other personnel from starting the laser processing device. This restricts each processing personnel to complete steps S130, S230, S330, S430, and S530 individually before personnel can be replaced. This can prevent the workpiece from being processed multiple times and can also prevent accidents caused by improper operation by other personnel. This effectively improves safety and reliability and can also avoid increasing unnecessary production costs.

[0082] Reference Figure 7 and Figure 8 As an example four, the laser processing control method of the present invention is applied to the laser processing apparatus in the above embodiments of the present invention. The laser processing apparatus includes at least a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, a focusing module 800, a positioning camera module 500, and a card recognition module 900. The laser processing control method includes the following steps:

[0083] S140. When a start signal is received, the signal of the authorization card is obtained, and the reserved information corresponding to the authorization card is determined. The reserved information includes at least the laser parameters, the processing personnel information, and the processing image information of the workpiece to be processed.

[0084] S240. Obtain the first human body feature signal of the current processing personnel and the processing image signal of the workpiece to be processed, and compare the first human body feature signal and the processing image signal with the reserved information corresponding to the authorization card.

[0085] S340. When the first human body feature signal is successfully paired with the processing image signal, the laser parameters bound to the corresponding reserved information are determined. At the same time, the identity information in the reserved information matched by the first human body feature signal is set as the operation judgment benchmark, and the workpiece to be processed is transported to the processing area.

[0086] S440. When a processing signal is received, the second human body feature signal of the current processing personnel is acquired again. The second human body feature signal is compared with the operation judgment benchmark. When the pairing is successful, the corresponding laser is output according to the laser parameters to perform laser processing on the workpiece.

[0087] S540. After the workpiece is processed, stop the laser output and transport the workpiece to the loading and unloading area.

[0088] It is understood that the difference between Embodiment 4 and Embodiment 3 is that the positioning camera module 500 is added to recognize the processing image signal of the workpiece. This restricts the processing personnel to only performing laser processing on the pre-set workpiece, preventing the output of laser to other items and thus preventing safety accidents. If laser is output to different items at will, there is a possibility of fire. Therefore, by adding the method of recognizing the workpiece, even authorized operators cannot operate the laser processing device at will, thus improving safety and reliability.

[0089] Reference Figure 7 and Figure 9 As an example five, the laser processing control method of the present invention is applied to the laser processing apparatus in the above embodiments of the present invention. The laser processing apparatus includes at least a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, a focusing module 800, a positioning camera module 500, and a card recognition module 900. The laser processing control method includes the following steps:

[0090] S150. When a start signal is received, the signal of the authorization card is obtained, and the reserved information corresponding to the authorization card is determined. The reserved information includes at least laser parameters, processing personnel information, processing image information of the workpiece to be processed, and processing movement path information.

[0091] S250: Obtain the first human body feature signal of the current processing personnel and the processing image signal of the workpiece to be processed, and compare the first human body feature signal and the processing image signal with the reserved information corresponding to the authorization card;

[0092] S350. When the first human body feature signal is successfully paired with the processing image signal, the laser parameters and processing movement path information bound to the corresponding reserved information are determined. At the same time, the identity information in the reserved information matched by the first human body feature signal is set as the running judgment benchmark, and the workpiece to be processed is transported to the processing area.

[0093] S450. When a processing signal is received, the second human body feature signal of the current processing personnel is acquired again. The second human body feature signal is compared with the operation judgment benchmark. When the pairing is successful, the corresponding laser is output according to the laser parameters to perform laser processing on the workpiece to be processed. The workpiece to be processed is moved in a directional manner according to the processing movement path information to cooperate with the laser to complete the corresponding processing on the workpiece to be processed.

[0094] S550: After the workpiece is processed, stop outputting the laser and transport the workpiece to the loading and unloading area.

[0095] It is understood that the difference between Embodiment 5 and Embodiment 4 is that Embodiment 5 adds processing movement path information for the workpiece. This restricts the workpiece to be laser-processed only according to the set method, preventing unnecessary processing of the workpiece due to improper operation by the operator. This not only prevents safety accidents but also prevents damage to the workpiece. If the workpiece is moved arbitrarily, it may cause a fire or damage. Therefore, by adding a method to identify the workpiece, even authorized operators cannot arbitrarily process the workpiece, further improving safety and reliability.

[0096] Reference Figure 10 and Figure 11 This is Example 6. The laser processing control method according to the present invention is applied to the laser processing apparatus in the above embodiments of the present invention. The laser processing apparatus includes at least a control module 100, a human feature signal recognition module 200, a control switch module 300, a stage 400, a laser module 600, a beam shaping module 700, a focusing module 800, a positioning camera module 500, and a card recognition module 900. The card recognition module 900 also includes a card clamping module 1000, which is electrically connected to the control module 100 and controlled by the control module 100. It can clamp the access card, preventing the access card from being removed until the restriction is lifted. The laser processing control method includes the following steps:

[0097] S160. When a start signal is received, the signal of the access card is obtained, the reserved information corresponding to the access card is determined and the access card is locked. The reserved information includes at least laser parameters, processing personnel information, processing image information of the workpiece to be processed and processing movement path information.

[0098] S260. Obtain the first human body feature signal of the current processing personnel and the processing image signal of the workpiece to be processed, and compare the first human body feature signal and the processing image signal with the reserved information corresponding to the authorization card.

[0099] S360. When the first human body feature signal is successfully paired with the processing image signal, determine the laser parameters and processing movement path information bound to the corresponding reserved information, and set the identity information in the reserved information matched by the first human body feature signal as the running judgment benchmark, and transport the workpiece to be processed to the processing area.

[0100] S460. When a processing signal is received, the second human body feature signal of the current processing personnel is acquired again. The second human body feature signal is compared with the operation judgment benchmark. When the pairing is successful, the corresponding laser is output according to the laser parameters to perform laser processing on the workpiece to be processed. The workpiece to be processed is moved in a directional manner according to the processing movement path information to cooperate with the laser to complete the corresponding processing on the workpiece to be processed.

[0101] S560. After the workpiece is processed, stop the laser output and transport the workpiece to the loading and unloading area.

[0102] S660: When a card retrieval signal is detected, the third human body feature signal of the current processing personnel is obtained, and the third human body is compared with the operation judgment benchmark. When the pairing is successful, the restriction of the access card is lifted so that the processing personnel can take it away.

[0103] It is understood that the difference between Embodiment Six and Embodiment Five is that the laser processing device adds a card clamping module 1000 and the control switch module 300 adds a card retrieval switch. The card clamping module 1000 can be a conventional card clamping structure in the art, which is a conventional technical means in the art and will not be described in detail here. The addition of locking the authorization card, in step S160, when an authorization card is detected inserted in the card insertion area, the authorization card can be locked by the card clamping module 1000. This can restrict the authorization card from being easily removed. After processing is completed, only the processing personnel corresponding to the authorization card can press the card retrieval switch to output a card retrieval signal to execute step 660, that is, after the control module 100 controls the card clamping module 1000 to release the authorization card, the processing personnel can take away the authorization card. In this way, even if the processing personnel forget to take away the authorization card, it can prevent the authorization card from being easily stolen and tampered with, and restrict other unauthorized personnel from operating the laser processing device.

[0104] From the steps of Example 6, it can be seen that Example 6 implements three limitations:

[0105] First, it requires the identification and matching of access cards, current processing personnel, and parts to be processed to confirm whether processing can begin:

[0106] Secondly, after moving to the processing area, the processing personnel are identified again, and the judgment is made in combination with the operational judgment criteria to prevent personnel changes during the process.

[0107] Third, setting restrictions on the removal of access cards can remind other processing personnel that someone is currently on duty. It can also prevent access cards from being easily stolen and their data from being tampered with, and prevent other unauthorized personnel from operating the laser processing equipment.

[0108] By imposing triple restrictions, not only can safety accidents be effectively prevented, but damage to the workpieces can also be prevented. Therefore, by adding a lock access card, security and reliability can be further improved.

[0109] It is known that Embodiments 3 to 6 adopted the permission card identification method, that is, each authorized processing personnel is equipped with a corresponding permission card. By identifying the permission card, a reminder function can be used to indicate whether there is already a processing personnel working on the current laser processing device. This prevents another processing personnel from directly starting the processing when there are parts to be processed on the stage 400, and can effectively avoid secondary processing or misoperation.

[0110] In some embodiments of the present invention, the laser parameters include at least one of the laser size information, laser power information, and laser wavelength information corresponding to the workpiece to be processed. Before the laser output in steps S310, S320, S430, S440, S450, and S460, the method further includes the following step: adjusting at least one of the laser spot size parameter, laser power, or laser wavelength parameter according to at least one of the laser size information, laser power information, or laser wavelength information. That is, after determining the laser parameters, if there is a difference between the previous laser parameters and the currently required laser parameters, the corresponding parameters need to be adjusted. When it is determined that the laser parameters need to be adjusted, it can be at least one of the laser size information, laser power information, and laser wavelength information, or two or three of these parameters can be adjusted simultaneously. This allows the laser with the required parameters to be output so that the workpiece to be processed can complete the corresponding processing.

[0111] The size parameters of the laser spot can be adjusted by the beam shaping module 700. In this embodiment, the beam shaping module 700 includes four blades and a motor structure. The four blades are distributed around each other, forming a rectangular hole in the middle. With the drive of the motor, the position of the four blades can be adjusted, thereby adjusting the size of the rectangle and thus changing the size of the laser spot transmitted through the beam shaping module 700. The control module 100 can control the motor according to the size in the set laser parameters so that the rectangle can be adjusted to the required size, and the required laser spot size can be output, improving convenience.

[0112] The laser power can be adjusted by the control module 100 controlling the laser module 600 to output laser power of a corresponding value. In some embodiments, the control module 100 can directly control the excimer laser 610 in the laser module 600 to output laser power of a corresponding value. Similarly, the laser wavelength can also be adjusted by the control module 100 controlling the laser module 600 to output laser wavelength of a corresponding value. In some embodiments, the control module 100 can directly control the excimer laser 610 in the laser module 600 to output laser wavelength of a corresponding value.

[0113] Other configurations and operations of the laser processing apparatus according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0114] According to embodiments of the present invention, by setting it up in this way, at least the following effects can be achieved: Simultaneously identifying the first human characteristic signal of the processing personnel and the processing image signal of the workpiece, the laser parameters matching the workpiece and the movement path during processing can be determined. This enables the output of lasers with corresponding parameters according to different workpieces, and completes directional processing, ensuring that the laser can only peel off the material layer that needs to be removed from the surface of the workpiece, and preventing the laser from damaging the metal layer beneath the workpiece. Furthermore, since the first human characteristic signal of the processing personnel is simultaneously identified and matched with pre-reserved information, it can be determined whether the current employee has the corresponding processing authority, restricting unauthorized personnel from starting the laser processing device. This not only improves safety but also avoids damage to the workpiece due to improper operation, improving reliability and reducing production costs.

[0115] The above are merely preferred embodiments of the present invention. The present invention is not limited to the above-described embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this disclosure, as long as they achieve the same technical effects, should be included within the scope of protection of this disclosure and should fall under the protection scope of the present invention. Within the protection scope of the present invention, the technical solutions and / or implementation methods can have various modifications and variations.

Claims

1. A laser processing control method, characterized in that, Includes the following steps: When a start signal is received, the signal of the access card is obtained, and the reserved information corresponding to the access card is determined. The reserved information includes at least laser parameters and processing personnel information. Obtain the first human feature signal of the current processing personnel, and compare the first human feature signal with the processing personnel information; When pairing is successful, the identity information corresponding to the first human feature signal is determined, and the identity information is set as the operation judgment benchmark. The workpiece to be processed is then transported to the processing area. When a processing signal is received, the second human body feature signal of the current processing personnel is acquired again. The second human body feature signal is compared with the operation judgment benchmark. When the pairing is successful, the corresponding laser is output according to the laser parameters to perform laser processing on the workpiece. Once the workpiece has been processed, the laser output is stopped, and the workpiece is transported to the loading and unloading area.

2. The laser processing control method according to claim 1, characterized in that: The laser parameters include the laser dimension information corresponding to the workpiece to be processed, and also include the following steps: Adjust the size parameters of the laser spot based on the laser size information.

3. The laser processing control method according to claim 1, characterized in that: The laser parameters also include the laser power parameters corresponding to the workpiece to be processed. Before "when the pairing is successful, output the corresponding laser according to the laser parameters to perform laser processing on the workpiece", the laser power is adjusted according to the laser power parameters.

4. The laser processing control method according to claim 1, characterized in that: The laser parameters also include the laser wavelength information corresponding to the workpiece to be processed. Before "when the pairing is successful, output the corresponding laser according to the laser parameters to perform laser processing on the workpiece", the laser wavelength parameters are adjusted according to the laser wavelength information.

5. The laser processing control method according to claim 1, characterized in that: The processing signal is issued by the current operator after pressing the processing switch.

6. The laser processing control method according to any one of claims 1 to 5, characterized in that: A laser processing apparatus is used, the laser processing apparatus comprising: The control module (100) is used to execute the laser processing control method described above; The human feature signal recognition module (200) is electrically connected to the control module (100); A control switch module (300) is electrically connected to the control module (100); A stage (400) is used to place and move the workpiece to be processed; A positioning camera module (500) is used to acquire the processing image signal of the workpiece to be processed and is electrically connected to the control module (100); A laser module (600) is used to output laser light and is electrically connected to the control module (100); A beam shaping module (700) is placed in the output optical path of the laser module (600) and electrically connected to the control module (100), and is capable of shaping the laser output by the laser module (600); A focusing module (800) is disposed on the output optical path of the beam shaping module (700) and outputs focused laser light to the workpiece on the stage (400); The card recognition module (900) is used to identify the permission card.

7. The laser processing control method according to claim 6, characterized in that: The human body feature signal recognition module (200) includes at least a human body recognition chip and a human body feature recognizer.

8. The laser processing control method according to claim 6, characterized in that: The laser module (600) includes an excimer laser (610) for outputting laser light.

9. The laser processing control method according to claim 8, characterized in that: The laser module (600) further includes at least one first reflective lens (620), which is disposed in the optical path between the excimer laser (610) and the beam shaping module (700) so that the laser of the excimer laser (610) can be transmitted into the beam shaping module (700).

10. The laser processing control method according to claim 6, characterized in that, The control switch module (300) includes: The operation switch is used to send a start signal; A processing switch is used to output the processing signal.

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