A galvanometer laser processing control system and method

Abstract

The application discloses a galvanometer laser processing control system and method, which comprises a laser, a controller, a light splitting module and a plurality of galvanometer control systems; the laser is used for emitting laser with set parameters; the light splitting module is used for splitting the light emitted by the laser into multiple paths of light and outputting the light to multiple galvanometers one by one through multiple light output ends; the galvanometer control system is used for controlling the galvanometer; and the controller is used for controlling the plurality of galvanometer control systems in time sharing mode and controlling the light splitting module in energy splitting and time sharing light splitting mode. The application adopts the plurality of galvanometer control systems and the plurality of galvanometer systems to process in time sharing and synchronization mode, only one laser is needed, the equipment cost is effectively reduced, the labor cost is saved, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of laser processing technology, specifically relating to a galvanometer laser processing control system and method. Background Technology

[0002] A traditional galvanometer laser processing control system typically consists of only one laser, one galvanometer control system, and one galvanometer system. When production capacity requires multiple galvanometer laser processing control systems to process simultaneously, each galvanometer laser processing control system needs to operate one laser, resulting in higher equipment costs. Furthermore, the labor costs required for multiple galvanometer laser processing control systems are also higher. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a galvanometer laser processing control system and method. It adopts multiple galvanometer control systems and multiple galvanometer systems for time-sharing and synchronous processing, requiring only one laser, effectively reducing equipment costs, saving labor costs, and improving processing efficiency.

[0004] The technical solution of the present invention is implemented as follows: The present invention discloses a galvanometer laser processing control system, including a laser, a controller, a beam splitting module, and multiple galvanometer control systems;

[0005] The laser is used to emit laser light with set parameters;

[0006] The beam splitting module is used to split the light emitted by the laser into multiple beams, and output them to multiple galvanometers one by one through the multiple output ends.

[0007] The galvanometer control system is used to control the galvanometer;

[0008] The controller is used to control the galvanometer control system and the beam splitting module.

[0009] Furthermore, the galvanometer laser processing control system of the present invention also includes a host computer, which is connected to the galvanometer control system, connected to the controller for setting controller parameters, and connected to the laser for setting laser parameters.

[0010] Furthermore, the multiple output ends of the beam splitter module correspond one-to-one with multiple galvanometer control systems, and each output end corresponds to the same galvanometer control system.

[0011] Furthermore, the beam splitting module includes a first acousto-optic modulator and a plurality of second acousto-optic modulators corresponding one-to-one with the multiple output ends. The input end of the first acousto-optic modulator is used to receive the light emitted by the laser and split it into multiple beams, which are output to the plurality of second acousto-optic modulators one-to-one. The input end of the second acousto-optic modulator is used to receive the light output by the first acousto-optic modulator or the light output by the previous stage second acousto-optic modulator. The first output end of the second acousto-optic modulator is used to output the light to the corresponding galvanometer via the output end. The second output end of the second acousto-optic modulator is used to output the light to the next stage second acousto-optic modulator or the light absorption module.

[0012] Furthermore, during the process of the controller controlling the galvanometer control system and the beam splitting module, the controller is specifically used to control the first group of galvanometer control systems to start first after receiving the original start trigger signal, and to control the other groups of galvanometer control systems to start with time-delay.

[0013] When the controller receives the original GATE start-up trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to start working first, and controls the acousto-optic modulators corresponding to the other groups of light output ends in the beam splitting module to start working with time-division delay.

[0014] When the controller receives the original GATE stop working trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to stop working first, and controls the acousto-optic modulators corresponding to the other groups of light output ends in the beam splitting module to stop working after a time-division delay.

[0015] Furthermore, the laser is a continuous laser, used to emit continuous laser light with set parameters.

[0016] This invention also discloses a method for controlling galvanometer laser processing, comprising the following steps:

[0017] S1) Set the parameters for laser processing, specifically including: setting the laser processing frequency to f and the duty cycle to dute;

[0018] When the S2 controller receives the original start trigger signal, it controls the first group of galvanometer control systems to start first, and controls the other groups of galvanometer control systems to start with time-delay.

[0019] When the controller receives the original GATE start-up trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to start working first, and controls the acousto-optic modulators corresponding to the other groups of light output ends in the beam splitting module to start working with time-division delay.

[0020] When the controller receives the original GATE stop working trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to stop working first, and controls the acousto-optic modulators corresponding to the other groups of light output ends in the beam splitting module to stop working after a time-division delay.

[0021] Furthermore, the controller receives the original start signal, and when it receives the rising edge of the original start signal, it considers that it has received the original start trigger signal.

[0022] Furthermore, the controller receives the original GATE output optical signal. When it receives the rising edge of the original GATE output optical signal, it considers that it has received the original GATE start-up trigger signal; when it receives the falling edge of the original GATE output optical signal, it considers that it has received the original GATE stop-work trigger signal.

[0023] Furthermore, controlling the other groups of galvanometer control systems to start in a time-division delayed manner specifically includes: when the controller receives the original start trigger signal, it starts timing and controls the other groups of galvanometer control systems to start in a time-division delayed manner, wherein the delay time for controlling the start of the k-th group of galvanometer control systems is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups of galvanometer control systems;

[0024] The control module for starting the acousto-optic modulators corresponding to the other light-emitting ends in the beam splitting module is time-division delayed. Specifically, when the controller receives the original GATE start-up trigger signal, it starts timing and controls the acousto-optic modulators corresponding to the other light-emitting ends in the beam splitting module to start working in a time-division delayed manner. The delay time for controlling the acousto-optic modulator corresponding to the k-th light-emitting end in the beam splitting module to start working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system.

[0025] The control module stops the acousto-optic modulators corresponding to the other light output ends in a time-division delay. Specifically, when the controller receives the original GATE stop working trigger signal, it starts timing and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to stop working in a time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the k-th light output end in the beam splitting module to stop working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system.

[0026] The i-th group of light output terminals of the beam splitter module corresponds to the i-th group of galvanometer control system, where i is an integer greater than or equal to 1 and less than or equal to N, and N is the number of groups of galvanometer control system.

[0027] Furthermore, the multiple output ends of the beam splitter module are divided into multiple groups of output ends. Each group of output ends includes at least one output end, and each output end corresponds to an acousto-optic modulator. The output ends in the same group of output ends emit light simultaneously or stop emitting light simultaneously. The multiple galvanometer control systems are also divided into multiple groups of galvanometer control systems, which correspond one-to-one with the multiple groups of output ends. Each group of galvanometer control systems includes at least one galvanometer control system. All galvanometer control systems in the same group of galvanometer control systems are started simultaneously.

[0028] Furthermore, after the output end of the beam splitter module starts working, it operates at a frequency of f and a duty cycle of dute; 0 < dute < 100 / N%, where N is the number of groups in the galvanometer control system.

[0029] Furthermore, step S1) also includes the following steps: after the host computer edits the galvanometer control parameters, it sends them to each set of galvanometer control systems;

[0030] The parameters for laser processing and the controller are set by the host computer, and then the parameters for laser processing and the controller are sent to the controller.

[0031] The present invention has at least the following beneficial effects: The present invention splits a continuous laser beam into two continuous laser beams by using a first acousto-optic modulator in the beam splitting module, and then performs precise timing design on the second acousto-optic modulator and galvanometer control system in the beam splitting module, so that the multi-processing head in the system has the function of time-sharing synchronous processing. Compared with traditional processing equipment, the processing equipment of the present invention uses multiple sets of galvanometer control systems and multiple sets of galvanometer systems for time-sharing synchronous processing, requiring only one laser, effectively reducing equipment costs, saving labor costs, and improving processing efficiency. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of a galvanometer laser processing control system provided in an embodiment of the present invention;

[0034] Figure 2 The signal timing diagram of the galvanometer laser processing control system provided in the embodiment of the present invention. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "a plurality of" or "several" means two or more.

[0037] Example 1

[0038] See Figure 1 and Figure 2 This invention provides a galvanometer laser processing control system, including a laser, a controller, a beam splitting module, and multiple galvanometer control systems;

[0039] The laser is used to emit laser light with set parameters;

[0040] The beam splitting module is used to split the light emitted by the laser into multiple beams, and output them to multiple galvanometers one by one through the multiple output ends.

[0041] The galvanometer control system is used to control the galvanometer;

[0042] The controller is used for time-division control of multiple galvanometer control systems and for energy splitting and time-division splitting control of the beam splitting module.

[0043] Furthermore, in the process of the controller performing time-division control on multiple galvanometer control systems and energy splitting and time-division splitting control on the splitting module, the controller is specifically used to control the first group of galvanometer control systems to start first after receiving the original start trigger signal, and to control the other groups of galvanometer control systems to start with time-division delay.

[0044] When the controller receives the original GATE start-up trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to start working first, and controls the acousto-optic modulators corresponding to the other groups of light output ends in the beam splitting module to start working with time-division delay.

[0045] When the controller receives the original GATE stop working trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to stop working first, and controls the acousto-optic modulators corresponding to the other groups of light output ends in the beam splitting module to stop working after a time-division delay.

[0046] Furthermore, the galvanometer laser processing control system of the present invention also includes a host computer, which is connected to the galvanometer control system and is used to send galvanometer control parameters to the galvanometer control system. The host computer is also connected to the controller for setting controller parameters and to the laser for setting laser parameters.

[0047] When this invention is used for marking, the host computer edits the marking image and sends it to the galvanometer control system.

[0048] Furthermore, the multiple output ends of the beam splitter module correspond one-to-one with multiple galvanometer control systems, and each output end corresponds to the same galvanometer control system.

[0049] Furthermore, the beam splitting module includes a first acousto-optic modulator and multiple second acousto-optic modulators corresponding one-to-one with the multiple output ends. The input end of the first acousto-optic modulator is used to receive the light emitted by the laser and split it into M beams, which are output to the M second acousto-optic modulators one-to-one. The input end of the second acousto-optic modulator is used to receive the light output by the first acousto-optic modulator or the light output by the previous stage second acousto-optic modulator. The first output end of the second acousto-optic modulator is used to output the light to the corresponding galvanometer via the output end. The second output end of the second acousto-optic modulator is used to output the light to the next stage second acousto-optic modulator or the light absorption module.

[0050] One embodiment is that the light absorption module can be a black absorber block.

[0051] One embodiment is as follows: M equals 2, and AOM1 splits the light into two beams as needed, with the power ratio arbitrarily set. That is, the energy of the two beams split from one beam by AOM1 through the first acousto-optic modulator can be equal or unequal.

[0052] After receiving the light emitted by the laser, AOM1 splits it into two beams, which are then sent to AOM2 and AOM3 respectively. The second acousto-optic modulator of this invention has N components, where N ≥ 2 and N is a positive integer.

[0053] Furthermore, based on the requirement for the number of light-emitting terminals, when N is greater than 2, the second acousto-optic modulator, excluding AOM2 and AOM3, is positioned between AOM2 and its corresponding light-absorbing module, or between AOM3 and its corresponding light-absorbing module. The first output terminal of the second acousto-optic modulator furthest from AOM1 after AOM2 outputs light to the corresponding galvanometer via the light-emitting terminal, and the second output terminal outputs light to the corresponding light-absorbing module. The first output terminals of the remaining second acousto-optic modulators after AOM2 output light to the corresponding galvanometer via the light-emitting terminal, and the second output terminals output light to the input terminal of the next-stage second acousto-optic modulator.

[0054] The first output of the second acousto-optic modulator furthest from AOM1 after AOM3 outputs light to the corresponding galvanometer via the light-emitting end, and the second output outputs light to the corresponding light-absorbing module. The first output of the remaining second acousto-optic modulators after AOM3 outputs light to the corresponding galvanometer via the light-emitting end, and the second output outputs light to the input of the next stage second acousto-optic modulator.

[0055] In one embodiment, there are four second acousto-optic modulators, namely AOM2, AOM3, AOM4, and AOM5. The beam splitting module includes a first light absorption module and a second light absorption module. The first output terminal of AOM2 is used to output light to the corresponding first galvanometer via a first light output terminal. The second output terminal of AOM2 is used to output light to the next stage AOM4. The first output terminal of AOM4 is used to output light to the corresponding second galvanometer via a second light output terminal. The second output terminal of AOM2 is used to output light to the first light absorption module. The first output terminal of AOM3 is used to output light to the corresponding fourth galvanometer via a fourth light output terminal. The second output terminal of AOM3 is used to output light to the next stage AOM5. The first output terminal of AOM5 is used to output light to the corresponding third galvanometer via a third light output terminal. The second output terminal of AOM5 is used to output light to the second light absorption module.

[0056] The first galvanometer is controlled by the first galvanometer control system. The second galvanometer is controlled by the second galvanometer control system. The third galvanometer is controlled by the third galvanometer control system. The fourth galvanometer is controlled by the fourth galvanometer control system.

[0057] AOM1 is an energy-dispersing light source. When AOM2, AOM3, AOM4, and AOM5 are not working, all the light on the corresponding optical path hits the corresponding black absorber.

[0058] Furthermore, the laser is a continuous laser, used to emit continuous laser light with set parameters.

[0059] Example 2

[0060] See Figure 1 and Figure 2 This invention provides a method for controlling galvanometer laser processing, comprising the following steps:

[0061] S1) Set the parameters for laser processing, specifically including: setting the laser processing frequency to f and the duty cycle to dute;

[0062] When the S2 controller receives the original start trigger signal, it controls the first group of galvanometer control systems to start first, and controls the other groups of galvanometer control systems to start with time-delay.

[0063] When the controller receives the original GATE start-up trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to start working first, and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to start working after a time-division delay. When the controller receives the original GATE stop-work trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to stop working first, and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to stop working after a time-division delay.

[0064] One of the multiple galvanometer control systems is designated as the master galvanometer control system. The master galvanometer control system is one of the first galvanometer control systems to be started.

[0065] Once all galvanometer control systems are ready, the main galvanometer control system outputs the initial start signal to the controller.

[0066] After the first group of galvanometer control systems is started, when the processing drawing requires light output (i.e., the location in the processing drawing where laser processing is required), the main galvanometer control system will give the original GATE light output signal.

[0067] Furthermore, after receiving the original start signal, the controller controls the first group of galvanometer control systems to start first when it receives the rising edge of the original start signal, and controls the other groups of galvanometer control systems to start with a time-delay.

[0068] Furthermore, the controller receives the original GATE output optical signal. When it receives the rising edge of the original GATE output optical signal, it considers that it has received the original GATE start-up trigger signal; when it receives the falling edge of the original GATE output optical signal, it considers that it has received the original GATE stop-work trigger signal.

[0069] Furthermore, controlling the other groups of galvanometer control systems to start with a time-division delay includes: when the controller receives the original start trigger signal (such as the rising edge of the original start signal), it starts timing and controls the other groups of galvanometer control systems to start with a time-division delay. The delay time for controlling the start of the k-th group of galvanometer control systems is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups of galvanometer control systems; and N≥2.

[0070] The control module controls the acousto-optic modulators corresponding to the other light-emitting ends to start working in a time-division delay. Specifically, when the controller receives the original GATE start-up trigger signal (such as the rising edge of the original GATE light-emitting signal), it starts timing and controls the acousto-optic modulators corresponding to the other light-emitting ends in the beam splitting module to start working in a time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the k-th light-emitting end in the beam splitting module to start working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system.

[0071] The control module controls the acousto-optic modulators corresponding to the other light-emitting ends to stop working after a time-division delay. Specifically, when the controller receives the original GATE stop working trigger signal (such as the falling edge of the original GATE light-emitting signal), it starts timing and controls the acousto-optic modulators corresponding to the other light-emitting ends in the beam splitting module to stop working after a time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the k-th light-emitting end in the beam splitting module to stop working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system.

[0072] The i-th group of light output terminals of the beam splitter module corresponds to the i-th group of galvanometer control system, where i is an integer greater than or equal to 1 and less than or equal to N, and N is the number of groups of galvanometer control system.

[0073] When setting the delay time, if there is overlap between the time groups, it will cause light leakage on a certain non-working processing path. The delay time set by this invention is (k-1) / (N*f), which can avoid the overlap between the time groups and prevent light leakage on a certain non-working processing path.

[0074] The multi-channel output end of the beam splitter is divided into multiple groups of output ends. Each group of output ends includes at least one output end, and each output end corresponds to a second acousto-optic modulator. The output ends in the same group of output ends emit light simultaneously or stop emitting light simultaneously. The multiple sets of galvanometer control systems are also divided into multiple groups of galvanometer control systems, which correspond one-to-one with the multiple groups of output ends. Each group of galvanometer control systems includes at least one galvanometer control system. All galvanometer control systems in the same group of galvanometer control systems are started simultaneously.

[0075] Furthermore, after the output end of the beam splitter starts working, it operates at a frequency of f and a duty cycle of dute; 0 < dute < 100 / N%, where N is the number of groups in the galvanometer control system. That is, the duty cycle of the output end of the beam splitter, 0 < dute < 100 / N%, is related to the number of groups N in the galvanometer control system.

[0076] Furthermore, step S1) also includes the following steps: after the host computer edits the galvanometer control diagram, it sends it to each set of galvanometer control systems;

[0077] The parameters for laser processing and the controller are set by the host computer, and then the parameters for laser processing and the controller are sent to the controller.

[0078] The above process will be explained in detail below with a specific example.

[0079] In this embodiment, there are four sets of galvanometer control systems. The beam splitter module has four light output ends. The four light output ends of the beam splitter module are divided into two groups of light output ends, and the four sets of galvanometer control systems are correspondingly divided into two groups of galvanometer control systems.

[0080] The galvanometer laser processing control method of this embodiment includes the following steps:

[0081] After the host computer edits the galvanometer control parameters (such as the marking image file), it sends them to the four galvanometer control systems; and sends the laser parameters and time-division control parameters to the controller.

[0082] In the beam splitter module, the acousto-optic modulator AOM1 splits a beam of light into two beams of equal energy.

[0083] The parameters for laser processing are: frequency f, duty cycle dute (0 < dute < 50%), and delay time T = 1 / (2*f);

[0084] After the controller receives the initial start signal, the first set of galvanometer control systems (set 1 / 4) starts first, followed by the second set (set 2 / 3) after a delay of T. Similarly, after the controller receives the initial GATE output signal, AOM2 / 3 in the beam splitter module operates at frequency f and duty cycle dute, followed by AOM4 / 5 in the beam splitter module after a delay of T. See the attached diagram for detailed timing information. Figure 2 .

[0085] Among the four galvanometer control systems, galvanometer lenses 1 / 2 / 3 / 4 have the function of time-sharing synchronous processing.

[0086] The control method and system design of the device involved in this invention use an acousto-optic modulator to split the energy of a continuous laser beam. Time-division control is achieved through precise timing design of the acousto-optic modulator and galvanometer control system, enabling the split beams to be processed synchronously in a time-division manner. Compared to traditional processing equipment, the system of this invention employs multiple sets of galvanometer control systems and multiple sets of galvanometer systems for time-division synchronous processing, requiring only one laser source. This effectively reduces equipment costs, saves labor costs, and improves processing efficiency. This system and method can be used for laser processing control such as marking and cutting.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A galvanometer laser processing control system, characterized in that: Includes laser, controller, beam splitter module and multiple galvanometer control systems; The laser is used to emit laser light with set parameters; The beam splitting module is used to split the light emitted by the laser into multiple beams, and output them to multiple galvanometers one by one through the multiple output ends. The galvanometer control system is used to control the galvanometer; The controller is used to control the galvanometer control system and the beam splitting module. In the process of the controller controlling the galvanometer control system and the beam splitting module, the controller is specifically used to control the first group of galvanometer control systems to start first after receiving the original start trigger signal, and control the other groups of galvanometer control systems to start with time delay. Specifically, when the controller receives the original start trigger signal, it starts timing and controls the other groups of galvanometer control systems to start with time delay. The delay time for controlling the start of the kth group of galvanometer control system is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, N is the number of groups of galvanometer control systems, and f is the parameter frequency of laser processing. The controller is used to control the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to start working first when it receives the original GATE start working trigger signal, and to control the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to start working with time-division delay. Specifically, when the controller receives the original GATE start working trigger signal, it starts timing and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to start working with time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the kth light output end in the beam splitting module to start working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system. The controller is used to control the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to stop working first when it receives the original GATE stop working trigger signal, and to control the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to stop working after a time-division delay. Specifically, when the controller receives the original GATE stop working trigger signal, it starts timing and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to stop working after a time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the kth light output end in the beam splitting module to stop working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system. The i-th group of light output terminals of the beam splitter module corresponds to the i-th group of galvanometer control system, where i is an integer greater than or equal to 1 and less than or equal to N, and N is the number of groups of galvanometer control system.

2. The galvanometer laser processing control system as described in claim 1, characterized in that: It also includes a host computer, which is connected to the galvanometer control system, the host computer is connected to the controller for setting controller parameters, and the host computer is connected to the laser for setting laser parameters.

3. The galvanometer laser processing control system as described in claim 1, characterized in that: The multiple output ends of the beam splitter module correspond one-to-one with multiple galvanometer control systems, and each output end and galvanometer control system corresponds to the same galvanometer.

4. The galvanometer laser processing control system as described in claim 1, characterized in that: The beam splitting module includes a first acousto-optic modulator and multiple second acousto-optic modulators corresponding to the multiple output ends. The input end of the first acousto-optic modulator is used to receive the light emitted by the laser and split it into multiple beams, which are output to the multiple second acousto-optic modulators one by one. The input end of the second acousto-optic modulator is used to receive the light output by the first acousto-optic modulator or the light output by the previous stage second acousto-optic modulator. The first output end of the second acousto-optic modulator is used to output the light to the corresponding galvanometer via the output end. The second output end of the second acousto-optic modulator is used to output the light to the next stage second acousto-optic modulator or the light absorption module.

5. A method for controlling laser processing with a galvanometer, characterized in that, Includes the following steps: S1) Set the parameters for laser processing, specifically including: setting the laser processing frequency to f and the duty cycle to dute; S2) When the controller receives the original start trigger signal, it controls the first group of galvanometer control systems to start first, and controls the other groups of galvanometer control systems to start with a time delay. Specifically, when the controller receives the original start trigger signal, it starts timing and controls the other groups of galvanometer control systems to start with a time delay. The delay time for controlling the start of the kth group of galvanometer control systems is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups of galvanometer control systems. When the controller receives the original GATE start-up trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to start working first, and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to start working with a time-division delay. Specifically, when the controller receives the original GATE start-up trigger signal, it starts timing and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to start working with a time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the kth light output end in the beam splitting module to start working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system. When the controller receives the original GATE stop working trigger signal, it controls the acousto-optic modulator corresponding to the first group of light output ends in the beam splitting module to stop working first, and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to stop working after a time-division delay. Specifically, when the controller receives the original GATE stop working trigger signal, it starts timing and controls the acousto-optic modulators corresponding to the other light output ends in the beam splitting module to stop working after a time-division delay. The delay time for controlling the acousto-optic modulator corresponding to the kth light output end in the beam splitting module to stop working is (k-1) / (N*f), where k is an integer greater than 1 and less than or equal to N, and N is the number of groups in the galvanometer control system. The i-th group of light output terminals of the beam splitter module corresponds to the i-th group of galvanometer control system, where i is an integer greater than or equal to 1 and less than or equal to N, and N is the number of groups of galvanometer control system.

6. The galvanometer laser processing control method as described in claim 5, characterized in that: The controller receives the original start signal, and when it receives the rising edge of the original start signal, it considers that it has received the original start trigger signal. The controller receives the original GATE output optical signal. When it receives the rising edge of the original GATE output optical signal, it considers that it has received the original GATE start-up trigger signal; when it receives the falling edge of the original GATE output optical signal, it considers that it has received the original GATE stop-work trigger signal.

7. The galvanometer laser processing control method as described in claim 5, characterized in that: After the output end of the beam splitter is started, it operates at a frequency of f and a duty cycle of dute; 0 < dute < 100 / N %, where N is the number of groups in the galvanometer control system.

8. The galvanometer laser processing control method as described in claim 5, characterized in that: Step S1) also includes the following steps: After the host computer edits the galvanometer control parameters, it sends them to each galvanometer control system. The parameters for laser processing and the controller are set by the host computer, and then the parameters for laser processing and the controller are sent to the controller.

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