Laser processing method and device, storage medium and computer equipment
By receiving and executing the focus command in advance during the laser processing, the problem of inaccurate focus caused by the response time difference of the focus follow-up module is solved, and the focus accuracy and quality of laser processing is improved.
Patent Information
- Application Number
- CN202411764821.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-28
AI Technical Summary
During laser processing, since the focus follow-up module takes a certain amount of time from receiving the focus command to the action response, the actual time of laser focus adjustment is delayed, affecting the focus accuracy.
By in advance, the focus follow-up module receives the current focus command when the distance moves to the first preset time of the current focus position, and adjusts the focus when the light output module moves to the current focus position, avoiding inaccurate focus caused by response time difference.
The advance reception and execution of the current focus instruction is realized, the focus accuracy is improved, and the quality of laser processing is improved.
Smart Images
Figure CN119703327A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of laser processing technology, and more specifically, relates to a laser processing method, device, storage medium and computer equipment. Background Art
[0002] Laser processing is widely used in the processing of various workpieces due to its advantages of high speed, high precision and high quality. However, to achieve a better processing effect, the focus of the laser needs to be adjusted to a suitable position. Since the processing surface of the workpiece may be uneven, the focus of the laser needs to be adjusted.
[0003] In the related art, the focus follower module starts to execute the focus command to adjust the focal position of the laser only after the light output module reaches the focus position. Since it takes a certain amount of time for the focus follower module to respond after receiving the focus command, the actual time of laser focus adjustment at the focal position is delayed, thus affecting the focusing accuracy. Summary of the invention
[0004] The embodiment of the present application provides a laser processing method, which can increase the focusing accuracy and thus improve the processing quality.
[0005] The technical solution adopted in the embodiment of the present application is: to provide a laser processing method, comprising:
[0006] Acquire the focusing data of each focusing position of the preset processing trajectory and generate a focusing instruction;
[0007] The light output module performs processing along the processing direction of the preset processing trajectory. When the distance moves to the first preset time of the current focusing position, the focus follower module receives the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction.
[0008] Furthermore, the step of "the light output module performs processing along the processing direction of the preset processing trajectory, and when the distance moves to the first preset time of the current focusing position, the focus follower module receives the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction" specifically includes:
[0009] The light output module moves along the processing direction of the preset processing trajectory;
[0010] When the distance moves to the current focus position for a first preset time, the focus follower module receives the current focus instruction;
[0011] When the light output module moves to the current focus position, the focus follower module adjusts the focus of the light output module at the current focus position.
[0012] Furthermore, the step of “when the light output module moves to the current focus position, the focus follower module adjusts the focus of the light output module at the current focus position” further includes:
[0013] The light output module continues to move along the processing direction of the preset processing track, and when the distance moves to the first preset time of the next focusing position, the focusing follower module receives the next focusing instruction;
[0014] When the light output module moves to a next focus position, the focus follower module adjusts the focus of the light output module at the next focus position.
[0015] Furthermore, the step of “obtaining focusing data of each focusing position of the preset processing trajectory and generating a focusing instruction” specifically includes:
[0016] The rangefinder moves along the processing direction of the preset processing track to measure the focusing data at each focusing position, and sends the focusing data to the controller;
[0017] The controller calculates a laser focus variation curve according to the focusing data and generates a focusing instruction.
[0018] Furthermore, the step of "the rangefinder moves along the processing direction of the preset processing trajectory to measure the focusing data at each focusing position, and sends the focusing data to the controller" specifically includes:
[0019] The rangefinder moves along the processing direction of the preset processing trajectory;
[0020] At every second preset time interval, the rangefinder measures the preset processing trajectory to obtain focusing data at each focusing position;
[0021] The rangefinder stores the focus data and sends the focus data to the controller.
[0022] Furthermore, the processing starting point of the preset processing trajectory is the focusing position.
[0023] Further, when the distance of the distance meter moves to the third preset time of the processing starting point, the distance meter is triggered.
[0024] Furthermore, the step of "the controller calculates the laser focus change curve according to the focusing data and generates a focusing instruction" also includes:
[0025] The focusing data measured when the distance meter moves to the processing starting point at a third preset time is filtered.
[0026] The present application also provides a laser processing device, including:
[0027] A data processing module, used to obtain the focusing data of each focusing position of the preset processing trajectory and generate a focusing instruction; and a light output module and a focusing follower module,
[0028] The light emitting module performs processing along the processing direction of the preset processing trajectory. When the distance moves to the current focusing position for a first preset time, the focusing follower module receives the current focusing instruction so that the focusing follower module adjusts the focus of the light emitting module at the current focusing position according to the current focusing instruction.
[0029] The present application also provides a computer device, including:
[0030] a processor configured to execute computer executable instructions;
[0031] The memory stores one or more computer executable instructions, and when the computer executable instructions are executed by the processor, the various steps of the laser processing method described above are implemented.
[0032] An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. The computer program is executed by a processor to implement the various steps of the laser processing method described above.
[0033] The beneficial effect of the laser processing method provided in the embodiment of the present application is that: the laser processing method in the embodiment of the present application obtains the focusing data of each focusing position of the preset processing trajectory and generates a focusing instruction; the light output module performs processing along the processing direction of the preset processing trajectory, and when the distance moves to the first preset time of the current focusing position, the focusing follower module receives the current focusing instruction so that the focusing follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction, thereby realizing the early reception of the current focusing instruction, which can avoid inaccurate focusing due to the time difference between the focus follower module receiving the focusing instruction and the action response, thereby improving the focusing accuracy and further improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0035] Figure 1 A schematic diagram of a laser processing method according to an embodiment of the present invention;
[0036] Figure 2A schematic diagram of a specific process of step S400 provided in an embodiment of the present application;
[0037] Figure 3 A schematic diagram of a specific flow chart of step S200 provided in an embodiment of the present application;
[0038] Figure 4 A schematic diagram of a preset processing trajectory provided in an embodiment of the present application;
[0039] Figure 5 A schematic diagram of a rangefinder provided in an embodiment of the present application measuring focusing data of each focal position along a preset processing trajectory.
[0040] Among them, the reference numerals in the figure are:
[0041] 10. Processing trajectory; 11. Processing starting point; 12. Processing direction; 20. Focusing position. DETAILED DESCRIPTION
[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0044] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0046] See also Figure 1Now, the laser processing method provided in the embodiment of the present application is described. The laser processing method provided in the embodiment of the present application can be used to process a workpiece, such as cutting a transparent workpiece. It includes steps S200 and S400.
[0047] S200, acquiring focusing data of each focusing position of a preset processing trajectory and generating a focusing instruction.
[0048] In step S200, when processing the processing surface of the workpiece, the light output module processes the processing surface along the preset processing trajectory. Since the processing surface of the workpiece may be uneven at different positions of the preset processing trajectory, that is, the flatness of the processing surface and the thickness of the workpiece are inconsistent, it is necessary to adjust the focus of the laser so that the focus of the laser remains constant, thereby ensuring the processing quality. The processing surface can be located on the upper surface or lower surface of the workpiece, or it can be located inside the workpiece.
[0049] "Focus position" means that when the light output module moves to the focus position, the focus follower module adjusts the focus of the light output module. It can be understood that setting multiple focus positions along the processing trajectory can further improve the adjustment accuracy.
[0050] S400, the light output module performs processing along the processing direction of the preset processing trajectory. When the distance moves to the first preset time of the current focusing position, the focus follower module receives the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction.
[0051] It can be understood that "at the first preset time from the light output module to the current focus position" means that when the light output module is still 2 seconds away from moving to the current focus position, the focus follower module starts to receive the current focus instruction. That is, the focus follower module receives the current focus instruction in advance by the first preset time. For example, when the first preset time is 2s, the focus follower module starts to receive the current focus instruction when the light output module is still 2s away from moving to the current focus position.
[0052] In step S400, since it takes a certain amount of time for the focus follower module to respond from receiving the focus instruction, the actual time of laser focus adjustment at the current focal position is delayed. Due to the delay, if the focus follower module starts to receive the focus instruction when the light output module is performing light output processing at the current focal position, the focusing accuracy will be affected. In order to solve this problem, in an embodiment of the present application, when the light output module moves to the first preset time of the current focusing position, the focus follower module starts to receive the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction, thereby avoiding inaccurate focusing due to the time difference from the focus follower module receiving the focus instruction to the action response, improving the focusing accuracy, and further improving the processing quality.
[0053] See also Figure 2 , step S400 "the light emitting module performs processing along the processing direction of the preset processing trajectory, and when the distance moves to the first preset time of the current focusing position, the focusing follower module receives the current focusing instruction so that the focusing follower module adjusts the focus of the light emitting module at the current focusing position according to the current focusing instruction", which may specifically include steps S420, S440, and S460.
[0054] S420, the light output module moves along a processing direction of a preset processing trajectory.
[0055] Among them, Figure 4 As shown, the “processing direction 12 ” refers to the moving direction of the light output module along the preset processing trajectory 10 when the workpiece is being processed.
[0056] S440: When the distance moves to the current focus position for a first preset time, the focus follower module receives the current focus instruction.
[0057] S460: When the light output module moves to the current focus position, the focus follower module adjusts the focus of the light output module at the current focus position.
[0058] It can be understood that by executing the focus instruction in advance, inaccurate focusing caused by the time difference between the focus follower module receiving the adjustment instruction and the action response can be avoided, thereby improving the focusing accuracy and further improving the processing quality.
[0059] See also Figure 2 , step S460 "when the light output module moves to the current focus position, the focus follower module adjusts the focus of the light output module at the current focus position", which may then include steps S470 and S480.
[0060] S470, the light output module continues to move along the processing direction of the preset processing trajectory, and when the distance moves to the next focusing position for the first preset time, the focusing follower module receives the next focusing instruction.
[0061] S480: When the light output module moves to the next focus position, the focus follower module adjusts the focus of the next focus position.
[0062] By continuing to adjust the focus at the next focusing position, focus adjustment can be achieved simultaneously during the laser processing process.
[0063] See also Figure 3 Step S200 “obtains the focusing data of each focusing position of the preset processing trajectory and generates a focusing instruction” may specifically include steps S220 and S240.
[0064] S220, the rangefinder moves along the processing direction of the preset processing trajectory to measure the focusing data at each focusing position, and sends the focusing data to the controller.
[0065] S240: The controller calculates a laser focus change curve according to the focusing data and generates a focusing instruction.
[0066] The focusing data of each focusing position is measured by using a rangefinder, and a focusing instruction is generated.
[0067] like Figure 5 As shown, step S220 "the rangefinder moves along the processing direction of the preset processing trajectory to measure the focusing data at each focusing position, and sends the focusing data to the controller" may specifically include steps S221, S222, and S223.
[0068] S221 , the rangefinder moves along the processing direction 12 of the preset processing trajectory 10 .
[0069] S222 , at every second preset time interval, the rangefinder measures the preset processing track 10 to obtain focusing data at each focusing position 20 .
[0070] S223: The rangefinder stores the focusing data and sends the focusing data to the controller.
[0071] By measuring once at a second preset time interval, the rangefinder obtains the focus data of the focus position. Of course, the rangefinder can also measure the preset processing track at a preset distance interval to obtain the focus data at each focus position.
[0072] See also Figure 5 The processing starting point 11 of the preset processing trajectory 10 can be the focusing position. By using the position of the processing starting point as the focusing position, it is possible to avoid missing the focusing data of the processing starting point and avoid the situation where there is a sudden change in the position of the processing starting point.
[0073] See also Figure 5 , when the distance of the rangefinder moves to the processing starting point 11 for the third preset time, the rangefinder is triggered. That is, the rangefinder is triggered in advance, so that when the rangefinder moves to the processing starting point 11, the focusing data of the processing starting point 11 can be measured, and the focusing data of the processing starting point 11 is avoided from being missed. The related technology usually triggers the rangefinder after reaching the processing starting point, and the focusing data of the processing starting point cannot be collected at this time.
[0074] See also Figure 3 , step S240 "the controller calculates the laser focus change curve according to the focusing data and generates a focusing instruction", and previously includes:
[0075] S230, filtering the focusing data measured when the rangefinder moves to the third preset time from the processing starting point.
[0076] Since the focusing data collected before the processing start point is invalid data, the focusing data before the processing start point is filtered out to avoid invalid data from affecting the laser focus change curve.
[0077] See also Figure 5 The laser processing method of one specific embodiment of the present application comprises the following steps:
[0078] S1. When the distance of the distance meter moves to the third preset time of the processing starting point, the distance meter is triggered, wherein the distance meter changes from ON to OFF.
[0079] S2, the rangefinder moves along the processing direction of the preset processing trajectory to the processing starting point to measure the focusing data of the processing starting point;
[0080] S3, at intervals of a second preset time, the rangefinder sequentially measures the focusing data at each focusing position after the processing starting point;
[0081] S4, the rangefinder stores the focusing data and sends the focusing data to the controller;
[0082] S5, the controller receives the focusing data transmitted by the rangefinder, filters the focusing data measured when the rangefinder moves to the third preset time from the processing starting point, calculates the laser focus change curve according to the remaining focusing data and generates a focusing instruction;
[0083] S6, the light output module moves along the processing direction of the preset processing trajectory;
[0084] S7, when the distance moves to the first preset time of the processing starting point, the focus follower module receives the current focus instruction;
[0085] S8, when the light output module moves to the processing starting point, the focus follower module adjusts the focus of the light output module to be located at the processing starting point, and the light output module receives the light output instruction and emits light;
[0086] S9, repeat steps S6 to S8 until the processing of the processing trajectory is completed.
[0087] The present application also provides a laser processing device, including:
[0088] A data processing module is used to obtain the focusing data of each focusing position of the preset processing trajectory and generate a focusing instruction; and a light output module and a focusing follow-up module.
[0089] The light output module performs processing along the processing direction of the preset processing trajectory. When the distance moves to the current focusing position for the first preset time, the focus follower module receives the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction.
[0090] The present application also provides a computer device, including:
[0091] a processor configured to execute computer-executable instructions;
[0092] The memory stores one or more computer executable instructions. When the computer executable instructions are executed by the processor, each step of the laser processing method in any of the above embodiments is implemented.
[0093] The memory, as a computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as program instructions corresponding to the laser processing method in the embodiments of the present application. The processor implements the laser processing method in any of the above embodiments by running the software programs, instructions and modules stored in the memory.
[0094] The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required for a function; the data storage area may store data created according to the use of the terminal, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
[0095] An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. The computer program is executed by a processor to implement each step of the laser processing method in any of the above embodiments.
[0096] Through the above description of the implementation mode, the technicians in the relevant field can clearly understand that the present invention can be implemented by means of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation mode. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of various embodiments of the present invention.
[0097] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A laser processing method, characterized in that: include: Acquire the focusing data of each focusing position of the preset processing trajectory and generate a focusing instruction; The light output module performs processing along the processing direction of the preset processing trajectory. When the distance moves to the first preset time of the current focusing position, the focus follower module receives the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction.
2. The laser processing method according to claim 1, characterized in that: The step of "the light output module performs processing along the processing direction of the preset processing trajectory, and when the distance moves to the first preset time of the current focusing position, the focus follower module receives the current focusing instruction so that the focus follower module adjusts the focus of the light output module at the current focusing position according to the current focusing instruction" specifically includes: The light output module moves along the processing direction of the preset processing trajectory; When the distance moves to the current focus position for a first preset time, the focus follower module receives the current focus instruction; When the light output module moves to the current focus position, the focus follower module adjusts the focus of the light output module at the current focus position.
3. The laser processing method according to claim 2, characterized in that: The step "when the light output module moves to the current focus position, the focus follower module adjusts the focus of the light output module at the current focus position" also includes: The light output module continues to move along the processing direction of the preset processing track, and when the distance moves to the first preset time of the next focusing position, the focusing follower module receives the next focusing instruction; When the light output module moves to a next focus position, the focus follower module adjusts the focus of the light output module at the next focus position.
4. The laser processing method according to any one of claims 1 to 3, characterized in that: The step of "obtaining the focusing data of each focusing position of the preset processing trajectory and generating a focusing instruction" specifically includes: The rangefinder moves along the processing direction of the preset processing track to measure the focusing data at each focusing position, and sends the focusing data to the controller; The controller calculates a laser focus variation curve according to the focusing data and generates a focusing instruction.
5. The laser processing method according to claim 4, characterized in that: The step of "the rangefinder moves along the processing direction of the preset processing trajectory to measure the focusing data at each focusing position, and sends the focusing data to the controller" specifically includes: The rangefinder moves along the processing direction of the preset processing trajectory; At every second preset time interval, the rangefinder measures the preset processing trajectory to obtain focusing data at each focusing position; The rangefinder stores the focus data and sends the focus data to the controller.
6. The laser processing method according to claim 4, characterized in that: The processing starting point of the preset processing trajectory is the focusing position.
7. The laser processing method according to claim 6, characterized in that: When the distance of the distance meter moves to the processing starting point for a third preset time, the distance meter is triggered.
8. The laser processing method according to claim 7, characterized in that: The step "the controller calculates the laser focus change curve according to the focusing data and generates a focusing instruction" also includes: The focusing data measured when the distance meter moves to the processing starting point at a third preset time is filtered.
9. A laser processing device, characterized in that: include: A data processing module, used to obtain the focusing data of each focusing position of the preset processing trajectory and generate a focusing instruction; and a light output module and a focusing follower module, The light emitting module performs processing along the processing direction of the preset processing trajectory. When the distance moves to the current focusing position for a first preset time, the focusing follower module receives the current focusing instruction so that the focusing follower module adjusts the focus of the light emitting module at the current focusing position according to the current focusing instruction.
10. A computer device, characterized in that: include: a processor configured to execute computer executable instructions; A memory storing one or more computer executable instructions, wherein when the computer executable instructions are executed by the processor, each step of the laser processing method according to any one of claims 1 to 8 is implemented.
11. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is executed by a processor to implement each step of the laser processing method according to any one of claims 1 to 8.