Laser processing apparatus and nozzle changing method

Abstract

The invention provides a laser processing device and a nozzle replacement method, and relates to the technical field of laser processing. The device comprises a nozzle assembly, a laser head and a control assembly. Wherein the nozzle assembly is arranged in a replacement area of the laser head, and the control assembly is connected with the laser head; the nozzle assembly is used for accommodating a plurality of nozzles to be replaced; the control assembly is used for determining a target nozzle in the multiple nozzles to be replaced on the nozzle assembly and a target replacement position corresponding to the target nozzle according to the replacement requirement, and controlling the laser head to move to the target replacement position; at the target replacement position, a laser output shaft of the laser head is coaxial with the shaft diameter of an inner hole of the target nozzle, and the laser head is used for mounting or dismounting the target nozzle at the target replacement position. The laser head can be controlled to be mounted or dismounted according to the actual condition of the nozzle, and the nozzle replacement efficiency and accuracy are effectively improved.

Description

Technical Field

[0001] The present application relates to the field of laser processing technology, and in particular to a laser processing device and a nozzle replacement method. Background Art

[0002] Laser processing technology is a processing technology that uses the characteristics of the interaction between laser beams and materials to cut, weld, surface treat, punch holes and micro-process materials (including metals and non-metals). As an advanced manufacturing technology, laser processing has been widely used in important sectors of the national economy such as automobiles, electronics, electrical appliances, aviation, metallurgy, and machinery manufacturing, playing an increasingly important role in improving product quality, labor productivity, automation, pollution-free, and reducing material consumption.

[0003] During laser cutting, a nozzle is usually used to adjust the direction and pressure of the high-pressure airflow to prevent the workpiece melt from splashing back into the cutting head, and to provide a capacitive signal to the height adjustment system to ensure the stable operation of the height adjustment system. Due to the different plates being cut, different process parameters are required for different plate materials and thicknesses, and the nozzle model and aperture size are adjusted according to the process parameters. In addition, as a consumable part, the nozzle is prone to damage during the processing process, affecting the quality and safety of the laser equipment in terminal use. For example, the nozzle will burn the bottom light outlet hole due to spark splashing during long-term use, resulting in a decrease in cutting quality, and may even damage the lens inside the cutting head. In addition, the height, shape and aperture of the nozzle have an important influence on the cutting quality. A worn nozzle will lead to poor cutting results, affecting production efficiency and product quality.

[0004] Therefore, during the laser processing process, the nozzle needs to be replaced frequently as a fast-consumable item. In the prior art, the nozzle is usually replaced manually by staff. During replacement, it is necessary to check the aperture size of the nozzle and check whether the installation or disassembly is completed. The nozzle replacement efficiency is low and the replacement effect is poor, which cannot meet current processing needs. Summary of the invention

[0005] In view of this, the purpose of the embodiments of the present application is to provide a laser processing device and a nozzle replacement method to improve the problems of low nozzle replacement efficiency and poor replacement effect existing in the prior art.

[0006] In order to solve the above problems, in a first aspect, an embodiment of the present application provides a laser processing device, the device comprising: a nozzle assembly, a laser head and a control assembly;

[0007] Wherein, the nozzle assembly is arranged in the replacement area of ​​the laser head, and the control assembly is connected to the laser head;

[0008] The nozzle assembly is used to accommodate a plurality of nozzles to be replaced;

[0009] The control component is used to determine a target nozzle and a target replacement position corresponding to the target nozzle among the plurality of nozzles to be replaced on the nozzle assembly according to a replacement requirement, and control the laser head to move to the target replacement position;

[0010] At the target replacement position, the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle, and the laser head is used to install or remove the target nozzle at the target replacement position.

[0011] In the above implementation process, the nozzle assembly is arranged in the replacement area of ​​the laser head, and a plurality of nozzles to be replaced are accommodated on the nozzle assembly, so that the laser head can be moved to the corresponding replacement area to replace the required nozzles during non-working hours. Considering that different processing requirements correspond to different types of nozzle replacement requirements, a control assembly connected to the laser head can also be arranged, and the control assembly determines the target nozzle required by the laser head and the target replacement position corresponding to the target nozzle in the nozzle to be replaced of the nozzle assembly according to the actual replacement requirements of the laser head, so as to control the laser head to move to the target replacement position, so that the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle, so that the laser head can install or remove the target nozzle at the target replacement position through the coaxial relative position. It is possible to select a suitable nozzle for replacement according to the actual replacement requirements of the laser head, determine the position during replacement through the set control assembly, and realize high-precision alignment processing through the coaxial relative position, effectively improving the position accuracy when installing or removing the nozzle, thereby improving the efficiency, success rate and accuracy of replacing the nozzle during laser processing, and is suitable for a variety of laser processing scenarios and meets a variety of different laser processing requirements.

[0012] Optionally, the nozzle assembly includes a bearing member and a moving member;

[0013] The bearing member is connected to the moving member;

[0014] The carrier is used to carry a plurality of nozzles to be replaced;

[0015] In the axial direction of the nozzle to be replaced, the moving member is used to drive the supporting member to approach or move away from the laser head in the replacement area.

[0016] In the above implementation process, considering the distance between the nozzle assembly and the laser head when the nozzle is replaced, the nozzle assembly may include a carrier that carries multiple nozzles to be replaced, and a movable member connected to the carrier, which can drive the carrier to move closer to or away from the laser head in the replacement area in the axial direction of the nozzle to be replaced, so that the common movement between the nozzle assembly and the laser head is achieved through the movement of the carrier in the replacement area. Through the relative position between the nozzle assembly and the laser head, the movement distance and time of the laser head when the nozzle assembly is stationary are effectively reduced, thereby improving the efficiency of nozzle replacement.

[0017] Optionally, a plurality of fixing grooves are provided on the bearing member;

[0018] Each of the fixing grooves is used to accommodate the corresponding nozzle to be replaced;

[0019] A gravity sensor is provided at the bottom of the fixing groove;

[0020] The gravity sensor is used to obtain gravity information in the fixing groove;

[0021] The control component is used to determine whether the target nozzle is installed / disassembled according to the received gravity information.

[0022] In the above implementation process, considering that the carrier is used to carry multiple nozzles to be replaced, in order to improve the position stability of the multiple nozzles to be replaced on the carrier, a plurality of fixed grooves for accommodating the nozzles to be replaced can be provided on the carrier, so as to limit the placement position of the nozzles to be replaced through the fixed grooves. In addition, a corresponding gravity sensor can be provided at the bottom of the fixed groove, which can detect the gravity information in the fixed groove, and send the detected gravity information to the control component for processing. The control component can analyze and judge whether the target nozzle has been installed / disassembled according to the actual situation of the gravity information. The fixed groove can be set to improve the effectiveness of the position of each nozzle to be replaced, thereby improving the effectiveness of the target replacement position of the target nozzle, and automatically determine whether the target nozzle has been installed / disassembled through the set gravity sensor, without manual inspection and judgment, effectively reducing the labor cost required for nozzle replacement.

[0023] Optionally, in the case where the laser head is installed with the target nozzle, if it is determined that the control component detects that the gravity information is a target value, it is determined that the installation of the target nozzle is completed;

[0024] In the case where the laser head is disassembling the target nozzle, if it is determined that the control component detects that the error between the gravity information and the mass information of the target nozzle is less than or equal to a preset threshold, it is determined that the disassembly of the target nozzle is complete.

[0025] In the above implementation process, the meaning of the gravity information detected by the gravity sensor is different in different replacement situations. In the case where the laser head needs to install the target nozzle, if the control component detects that the received gravity information is the target value, it indicates that the target nozzle is no longer in the fixed groove, and the target nozzle has been successfully installed on the laser head, that is, the target nozzle is installed. In the case where the laser head needs to remove the target nozzle, if the control component detects that the error between the received gravity information and the mass information of the target nozzle is less than or equal to the preset threshold, it indicates that the target nozzle has returned to the fixed groove and the target nozzle is removed. The difference between the gravity information and the original quality information verifies whether the target nozzle matches the fixed groove during removal, that is, whether the target nozzle returns to the correct fixed groove to complete the removal. It can judge whether the target nozzle is installed / removed according to the actual situation of the gravity information in different replacement situations, effectively improving the effectiveness of the judgment and reducing unfavorable situations such as nozzle misalignment during removal.

[0026] Optionally, an elastic member is provided on the laser head;

[0027] When the laser head is mounted with the target nozzle, the elastic member moves along the axial direction to approach the target nozzle and fix the target nozzle;

[0028] When the laser head is detached from the target nozzle, the elastic member moves away from the target nozzle along the axial direction to be detached from the target nozzle.

[0029] In the above implementation process, considering the stability between the nozzle and the laser head when the nozzle is used, a corresponding elastic member may be provided on the laser head to fix the nozzle installed on the laser head through the elastic member. In the case where the laser head needs to install a target nozzle, the elastic member can move along the axial direction close to the target nozzle to fix the target nozzle on the laser head. In the case where the laser head needs to remove the target nozzle, the elastic member can move along the axial direction away from the target nozzle to detach from the target nozzle to achieve the disassembly between the laser head and the target nozzle. The target nozzle can be fixed and detached by the up and down movement of the elastic member provided on the laser head, which effectively improves the stability and effectiveness of the nozzle installed on the laser head, reduces the adverse situation of the nozzle detaching from the laser head during laser processing, and thus improves the stability and safety of laser processing.

[0030] Optionally, wherein, in the case where the laser head disassembles the target nozzle, the moving member is used to drive the carrier member to approach the laser head in the replacement area;

[0031] The bearing member is used to provide a driving force for the elastic member to move away from the target nozzle.

[0032] In the above implementation process, when the laser head needs to remove the target nozzle, the moving part can drive the bearing part to approach the laser head in the replacement area, so as to provide the elastic part on the laser head with a driving force away from the target nozzle in the axial direction through the relative movement between the bearing part and the elastic part on the laser head, so that the elastic part can normally release the target nozzle and remove the target nozzle and place it back on the bearing part. The disengagement control of the elastic part can be achieved by the movement of the nozzle assembly and the contact with the laser head, which effectively improves the success rate of the laser head removing the target nozzle.

[0033] Optionally, the moving member includes: a driving member, a guide member and a bracket;

[0034] The first surface of the bracket is connected to the bearing member, and the driving member is connected to the second surface of the bracket through the guide member;

[0035] The driving member is used to provide driving force for the bracket;

[0036] The guide member is used to limit the moving direction of the bracket;

[0037] The bracket is used for supporting the bearing member to move.

[0038] In the above implementation process, in order to improve the effectiveness of driving the bearing member to move, the moving member may include a driving member, a guiding member and a bracket. The bracket is connected to the bearing member, and the driving member provides driving force to the bracket to support the progress of the bearing member. In addition, considering that the bearing member moves up and down along the axial direction in the replacement area, in order to ensure the consistency of the movement direction during the up and down movement, a corresponding guiding member can be set to limit the movement direction of the bracket, so that the bearing member can move in the replacement area, reduce the positioning failure caused by the movement of the bearing member to other areas and other adverse situations, and effectively improve the stability and effectiveness of the up and down movement of the bearing member in the replacement area.

[0039] In a second aspect, an embodiment of the present application further provides a nozzle replacement method, which is applied to any of the above-mentioned laser processing devices, and the method includes:

[0040] By means of the control component, according to the replacement requirement, a target nozzle and a target replacement position corresponding to the target nozzle are determined among the multiple nozzles to be replaced on the nozzle assembly, and the laser head is controlled to move to the target replacement position;

[0041] At the target replacement position, the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle; the target nozzle is installed or removed at the target replacement position through the laser head.

[0042] In the above implementation process, taking into account the replacement requirements of different types of nozzles corresponding to different processing requirements, the control component can determine the target nozzle required by the laser head and the target replacement position corresponding to the target nozzle among the nozzles to be replaced in the nozzle assembly according to the actual replacement requirements of the laser head, thereby controlling the laser head to move to the target replacement position so that the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle, so that the laser head can install or disassemble the target nozzle at the target replacement position through the coaxial relative position.

[0043] Optionally, the control component includes: an image sensor and a controller; the image sensor is fixedly arranged at the non-laser outlet of the laser head; the image sensor is communicatively connected with the controller;

[0044] The control component determines a target nozzle and a target replacement position corresponding to the target nozzle among a plurality of nozzles to be replaced on the nozzle assembly according to a replacement requirement, and controls the laser head to move to the target replacement position, including:

[0045] Acquiring calibration images of the plurality of nozzles to be replaced on the nozzle assembly through the image sensor;

[0046] Determining, by the controller, a target aperture according to the replacement requirement, and determining a calibration aperture of each of the nozzles to be replaced from the received calibration image, and determining the target nozzle based on the target aperture and a plurality of the calibration apertures;

[0047] By means of the image sensor, focusing processing is performed based on the target nozzle to determine the target replacement position;

[0048] The controller controls the laser head to move to the target replacement position based on the target replacement position and the offset distance between the image sensor and the laser head.

[0049] In the above implementation process, the control component may include an image sensor fixedly arranged at the non-laser outlet of the laser head and a controller in communication with the image sensor. The calibration images of multiple nozzles to be replaced on the nozzle assembly can be obtained through the image sensor first, and the calibration images are sent to the controller for processing. The controller can determine the target aperture of the nozzle required by the laser head according to the replacement requirements of the actual processing of the laser head, and determine the calibration aperture of each nozzle to be replaced from the calibration image, so as to compare the target aperture with the multiple calibration apertures and determine the target nozzle corresponding to the target aperture among the multiple nozzles to be replaced. In order to locate the target nozzle, the image sensor can continue to focus on the determined target nozzle, and determine the corresponding target replacement position after the focus is successful. Considering that there is an offset distance between the image sensor and the laser head, the controller can control the motion of the laser head according to the determined target replacement position and the offset distance, so as to control and move the laser head to the target replacement position for subsequent nozzle installation / disassembly processing. The target nozzle and the corresponding target replacement position can be determined by visual detection, which effectively improves the real-time and effectiveness of the target replacement position, thereby improving the efficiency and success rate of the laser head replacing the nozzle at the target replacement position.

[0050] Optionally, the control component includes: a controller; the controller is communicatively connected with a tooling device of the laser head;

[0051] The control component determines a target nozzle and a target replacement position corresponding to the target nozzle among a plurality of nozzles to be replaced on the nozzle assembly according to a replacement requirement, and controls the laser head to move to the target replacement position, including:

[0052] By means of the controller, a spatial coordinate system is constructed based on a preset origin, and a first coordinate of an inner hole of each nozzle to be replaced on the nozzle assembly is determined in the spatial coordinate system;

[0053] By means of the controller, a target aperture is determined based on the replacement requirement, and the target nozzle is determined among the plurality of nozzles to be replaced based on the target aperture, and a target coordinate corresponding to the target nozzle is determined among the plurality of first coordinates;

[0054] Determining, by the controller, a second coordinate of the current spatial position of the laser head in the spatial coordinate system based on the movement information of the laser head;

[0055] The controller controls the laser head to move to the target replacement position based on the second coordinate and the target coordinate.

[0056] In the above implementation process, the control component may include a controller that is communicatively connected to the laser head. The controller can construct a corresponding spatial coordinate system based on the preset origin on the tooling to determine the first coordinate of the inner hole of each nozzle to be replaced on the nozzle assembly in the control coordinate system, thereby realizing the positioning of multiple nozzles to be replaced. In addition, the controller can also determine the target aperture of the nozzle required by the laser head according to the replacement requirements of the actual processing of the laser head, and screen among multiple nozzles to be replaced based on the target aperture, select the nozzle to be replaced with the same inner aperture as the target aperture as the target nozzle, and the target coordinates corresponding to the target nozzle in multiple first coordinates. The controller can obtain the movement information of the laser head in real time based on the communication connection to analyze the movement information of the laser head, determine the second coordinate of the current spatial position of the laser head in the spatial coordinate system, take the second coordinate as the starting point of the movement, and take the target coordinate as the end point of the movement, that is, the target replacement position, and control the laser head to move to the target replacement position for subsequent nozzle installation / disassembly processing. The target nozzle and the corresponding target replacement position can be determined by determining the spatial coordinates, which effectively improves the efficiency and accuracy of determining the target replacement position, thereby improving the efficiency and success rate of the laser head replacing the nozzle at the target replacement position.

[0057] In a third aspect, an embodiment of the present application further provides an electronic device, comprising a memory and a processor, wherein the memory stores program instructions, and when the processor reads and runs the program instructions, it executes the steps in any implementation of the above-mentioned nozzle replacement method.

[0058] In a fourth aspect, an embodiment of the present application further provides a computer program product, which includes a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps in any implementation of the above-mentioned nozzle replacement method are implemented.

[0059] To summarize, the embodiments of the present application provide a laser processing device and a nozzle replacement method, which can select a suitable nozzle for replacement according to the actual replacement needs of the laser head, determine the position during replacement through a set control component, and achieve high-precision alignment processing through coaxial relative positions, thereby effectively improving the position accuracy when installing or removing the nozzle, thereby improving the efficiency, success rate and accuracy of nozzle replacement during laser processing, and is suitable for a variety of laser processing scenarios to meet a variety of different laser processing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 A schematic diagram of the structure of a laser processing device provided in an embodiment of the present application;

[0062] Figure 2 A schematic diagram of the specific structure of a nozzle assembly provided in an embodiment of the present application;

[0063] Figure 3 A schematic diagram of a flow chart of a nozzle replacement method provided in an embodiment of the present application;

[0064] Figure 4 A detailed flowchart of the first step S210 provided in the embodiment of the present application;

[0065] Figure 5 A detailed flowchart of the second step S210 provided in an embodiment of the present application.

[0066] Icons: 110-nozzle assembly; 111-nozzle to be replaced; 112-carrying part; 1121-fixing groove; 1122-gravity sensor; 113-moving part; 1131-driving part; 1132-guide part; 1133-bracket; 120-laser head; 130-control assembly; 140-replacement area; A-laser output shaft; B-inner hole shaft diameter; C-shaft diameter direction. DETAILED DESCRIPTION

[0067] The technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiments of the present application.

[0068] In the prior art, nozzles are usually replaced manually by staff. When replacing, it is necessary to check the aperture size of the nozzle and check whether the installation or disassembly is complete. For example, the staff selects the required type of nozzle by eye, installs or disassembles the nozzle through the thread, and determines by manpower whether the thread has reached the bottom to determine whether the nozzle is successfully installed. The pressure of each staff member during manual processing is different, and there are errors in manual selection of nozzles, and dislocation of threads is easy to occur when manually processing the threads. These unfavorable situations result in low nozzle replacement efficiency and poor replacement effect. For example, the wrong nozzle model is installed, or the threads are misaligned during installation, resulting in dangerous situations such as nozzle detachment and laser splashing during processing, which cannot meet current processing needs.

[0069] In order to solve the above problems, the embodiment of the present application provides a laser processing device, which can select a suitable nozzle for replacement according to the actual replacement needs of the laser head, determine the position during replacement through the set control component, and achieve high-precision alignment processing through the coaxial relative position, thereby effectively improving the position accuracy when installing or removing the nozzle, thereby improving the efficiency, success rate and accuracy of replacing the nozzle during laser processing, and is suitable for a variety of laser processing scenarios to meet a variety of different laser processing needs.

[0070] See also Figure 1 , Figure 1 This is a schematic structural diagram of a laser processing device provided in an embodiment of the present application. The laser processing device may include: a nozzle assembly 110, a laser head 120 and a control assembly 130.

[0071] The nozzle assembly 110 is disposed in a replacement area 140 of the laser head 120 , and the control assembly 130 is connected to the laser head 120 .

[0072] Optionally, the working area can be set on a corresponding workbench or tooling table. For example, the working area is a rectangular area cut on the workbench, etc. The nozzle assembly 110 can be a corresponding tray or other component that can accommodate multiple nozzles 111 to be replaced. The nozzles 111 to be replaced can include multiple nozzles with different inner hole diameters, so that nozzles with multiple different signals can be suitable for a variety of different laser processing requirements. It can also include multiple nozzles with the same inner hole diameter to be suitable for replacement scenarios when nozzles of the same model are damaged. According to the actual needs of the laser head 120, multiple nozzles required in the laser processing process can be placed on the nozzle assembly 110 as the nozzles 111 to be replaced.

[0073] For example, the laser processing device may also include a tooling device of the laser head 120. The working device may be a tooling device for laser processing such as a laser cutting device. The laser cutting device may be fixed on a corresponding workbench or tooling table. The laser head 120 is a movable component of the laser cutting device. The laser cutting device may also include components of various types and functions such as a laser source, a base, and a lens. During working hours, the laser head 120 is in a corresponding working area for laser processing. During non-working hours, the controller may control the laser head 120 to move to a corresponding replacement area 140 to replace the required nozzle.

[0074] Optionally, the control component 130 may include a corresponding controller, and the controller may be configured as various types of integrated circuit chips with signal processing capabilities. For example, the controller may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The controller may be disposed inside the laser cutting device to communicate with the laser head 120, or it may be disposed outside the laser head 120 to communicate with the laser head 120.

[0075] It should be noted that during the laser processing, due to differences in processing materials, processing methods, etc., the laser head 120 needs to install different types of nozzles or replace worn nozzles for laser processing. Therefore, the laser head 120 has a variety of different replacement requirements for the nozzles. Considering that different processing requirements correspond to different types of nozzle replacement requirements, the control component 130 can determine the target nozzle from the multiple nozzles 111 to be replaced on the nozzle assembly 110 according to the current replacement requirements of the laser head 120, as well as the target replacement position corresponding to the target nozzle, and control the laser head 120 to move to the target replacement position. At the target replacement position, the laser output axis A of the laser head 120 is coaxial with the inner hole axis diameter B of the target nozzle ( Figure 1 In the figure, taking any nozzle 111 to be replaced as an example, the laser head 120 is used to install or remove the target nozzle at the target replacement position.

[0076] Among them, the inner hole axis diameter B of the target nozzle is the radial direction of the inner hole center axis of the target nozzle, and the laser output axis A of the laser head 120 is the axial direction of the laser output in the laser head 120. It is necessary to keep the laser output axis A coaxial with the inner hole axis diameter B to achieve precise alignment of the laser head 120 and the target nozzle, thereby improving the consistency of the positions of the two when installing or removing the target nozzle, and reducing the adverse situation of replacement failure caused by misalignment of the two.

[0077] exist Figure 1 In the illustrated embodiment, a suitable nozzle can be selected for replacement according to the actual replacement requirements of the laser head 120, the position during replacement can be determined by the control component 130 provided, and high-precision alignment processing is achieved through the coaxial relative position, thereby effectively improving the position accuracy during installation or removal of the nozzle, thereby improving the efficiency, success rate and accuracy of nozzle replacement during laser processing, and is suitable for a variety of laser processing scenarios and meets a variety of different laser processing requirements.

[0078] Optionally, see Figure 2 , Figure 2 A schematic diagram of the specific structure of a nozzle assembly provided in an embodiment of the present application. Considering the distance between the nozzle assembly 110 and the laser head 120 when the nozzle is replaced, the nozzle assembly 110 may include a carrier 112 and a moving part 113.

[0079] The carrier 112 is connected to the moving member 113, and the carrier 112 is used to carry a plurality of nozzles 111 to be replaced. In the axial direction C of the nozzles 111 to be replaced, the moving member 113 is used to drive the carrier 112 to move closer to or away from the laser head 120 in the replacement area 140. The nozzle assembly 110 may include a carrier 112 that carries a plurality of nozzles 111 to be replaced, and a moving member 113 that is connected to the carrier 112 and can drive the carrier 112 to move closer to or away from the laser head 120 in the replacement area 140 in the axial direction C of the nozzles 111 to be replaced, so that the common movement between the nozzle assembly 110 and the laser head 120 is achieved through the movement of the carrier 112 in the replacement area 140, and the relative position between the nozzle assembly 110 and the laser head 120 effectively reduces the movement distance and time required for the laser head 120 when the nozzle assembly 110 is stationary, thereby improving the efficiency of nozzle replacement.

[0080] It should be noted that the axial direction C of the nozzle 111 to be replaced is the extension direction of the inner hole axial diameter B of the nozzle 111 to be replaced, and the supporting member 112 moves along the axial direction C, and can approach the laser head 120 or move away from the laser head 120, so as to achieve the approach and distance between the laser head 120 and the nozzle 111 to be replaced by changing the distance between the supporting member 112 and the laser head 120 in the axial direction C, thereby reducing the movement distance and time required for installation.

[0081] Optionally, the carrier 112 can be configured as a tray structure corresponding to the shape of the replacement area 140. For example, when the replacement area 140 is rectangular, the carrier 112 can be configured as a rectangular tray with a side length slightly smaller than that of the replacement area 140, so that the carrier 112 can move up and down normally along the axial direction C in the replacement area 140.

[0082] Optionally, see Figure 2 In order to improve the effectiveness of driving the supporting member 112 to move, the moving member 113 may include: a driving member 1131, a guiding member 1132 and a bracket 1133.

[0083] Among them, the first surface of the bracket 1133 is connected to the bearing member 112, the driving member 1131 is connected to the second surface of the bracket 1133 through the guide member 1132, the driving member 1131 is used to provide driving force for the bracket 1133, the guide member 1132 is used to limit the moving direction of the bracket 1133, and the bracket 1133 is used to support the bearing member 112 to move. The bracket 1133 is connected to the bearing member 112, and the driving member 1131 provides driving force for the bracket 1133 to support the progress of the bearing member 112. In addition, considering that the bearing member 112 moves up and down along the axial direction C in the replacement area 140, in order to ensure the consistency of the movement direction during the up and down movement, a corresponding guide member 1132 can be set to limit the moving direction of the bracket 1133, so that the bearing member 112 can move in the replacement area 140, reduce the positioning failure caused by the bearing member 112 moving to other areas, and effectively improve the stability and effectiveness of the up and down movement of the bearing member 112 in the replacement area 140.

[0084] Optionally, the bracket 1133 can be configured as a variety of structures with supporting functions, such as corresponding types of support frames, top plate structures, equal-height columns and fixed plates, and the multiple structures are interlocked and connected to each other to provide effective and uniform supporting force for the carrier 112. The guide member 1132 may include multiple bushings and guide shafts and other structures with driving functions and direction limiting functions. The multiple bushings and guide shafts are evenly and symmetrically distributed, for example, including four bushings and four guide shafts distributed on the four corners of the fixed plate of the bracket 1133, so that the coaxiality of the movement direction of the bracket 1133 and the axial diameter direction C of the nozzle is ensured by connecting and sliding each set of bushings and guide shafts, thereby limiting the movement direction of the bracket 1133 to the axial diameter direction C, and improving the consistency of the positions of each nozzle 111 to be replaced in the axial diameter direction C during the movement of the carrier 112.

[0085] For example, the driving member 1131 may include various types of devices with driving functions, such as motors, electric cylinders, and pneumatic cylinders.

[0086] Optionally, considering the weight of multiple nozzles 111 to be replaced, the bracket 1133 and the guide 1132 can be set to various types of metal materials, such as stainless steel, etc., to provide sufficient and document supporting force for the nozzles 111 to be replaced.

[0087] Optionally, see Figure 2 Considering that the carrier 112 is used to carry multiple nozzles 111 to be replaced, during the process of replacing the nozzles, the laser head 120 contacts the nozzles, which may change the position of the nozzles on the carrier 112, thereby affecting the subsequent positioning and nozzle replacement accuracy. Therefore, in order to improve the stability of the positions of the multiple nozzles 111 to be replaced on the carrier 112, the carrier 112 may be provided with multiple fixing grooves 1121 for accommodating the nozzles 111 to be replaced. The carrier 112 may be provided with multiple fixing grooves 1121, each fixing groove 1121 is used to accommodate a corresponding nozzle 111 to be replaced.

[0088] The shape and depth of the fixing groove 1121 can be set according to the parameters such as the periphery and height of the nozzle 111 to be replaced. For example, when the nozzle 111 to be replaced is a circular structure with a diameter of 10 mm and a height of 30 mm, the fixing groove 1121 can be set to a circular groove with a diameter of 11 mm and a height of 15 mm, so as to limit the placement position and movement tendency of the nozzle 111 to be replaced on the carrier 112 without affecting the normal contact between the nozzle 111 to be replaced and the laser head 120, so as to improve the stability of the position of the nozzle 111 to be replaced on the carrier 112. The fixing groove 1121 can be set to improve the effectiveness of the position of each nozzle 111 to be replaced, thereby improving the effectiveness of the target replacement position of the target nozzle.

[0089] Furthermore, it should be noted that a gravity sensor 1122 may be provided at the bottom of the fixing groove 1121. The gravity sensor 1122 is used to obtain gravity information in the fixing groove 1121 and send the detected gravity information to the control component 130 for processing. The control component 130 can determine whether the target nozzle has been installed / disassembled based on the received gravity information. The gravity sensor 1122 can be used to automatically determine whether the target nozzle has been installed / disassembled without manual inspection and judgment, which effectively reduces the labor cost required for nozzle replacement.

[0090] Optionally, the gravity information detected by the gravity sensor 1122 has different meanings in different replacement situations. When the laser head 120 is installed with a target nozzle, if the control component 130 detects that the gravity information is the target value, it is determined that the installation of the target nozzle is complete. When the laser head 120 needs to install a target nozzle, if the control component 130 detects that the received gravity information is the target value, it indicates that the target nozzle is no longer in the fixed groove 1121, and the target nozzle has been successfully installed on the laser head 120, that is, the installation of the target nozzle is complete. When the laser head 120 is disassembling the target nozzle, if the control component 130 detects that the error between the gravity information and the mass information of the target nozzle is less than or equal to a preset threshold, it is determined that the disassembly of the target nozzle is complete. In the case where the laser head 120 needs to disassemble the target nozzle, if the control component 130 detects that the error between the received gravity information and the mass information of the target nozzle is less than or equal to the preset threshold, it indicates that the target nozzle has returned to the fixed groove 1121 and the disassembly of the target nozzle is completed, and through the difference between the gravity information and the original mass information, it is verified whether the target nozzle matches the fixed groove 1121 during disassembly, that is, whether the target nozzle returns to the correct fixed groove 1121 to complete the disassembly. In different replacement situations, it is possible to judge whether the target nozzle is installed / disassembled according to the actual situation of the gravity information, which effectively improves the effectiveness of the judgment and reduces adverse situations such as nozzle misalignment during disassembly.

[0091] For example, the target value may be a value close to 0 to represent the installation condition of the target nozzle away from the fixing groove 1121 .

[0092] It should be noted that, taking into account the possibility of corresponding wear and tear on the nozzle used on the laser head 120 during the laser processing process, when the laser head 120 needs to disassemble the target nozzle, in order to reduce the impact of wear on gravity detection, the original quality information of the target nozzle can be obtained from the database based on the identity information such as the target nozzle number, and the corresponding preset error threshold can be set according to the actual situation of the quality information. For example, when the target nozzle is 20g, the corresponding preset threshold is set to 0.5g. When the gravity information is 19.5g-20.5g, it can be determined that the target nozzle is disassembled.

[0093] Optionally, if the error between the gravity information and the mass information is greater than a preset threshold, the following abnormal situations may occur: 1. The target nozzle does not match the corresponding fixed slot 1121. For example, the laser head 120 installs the target nozzle from the a fixed slot 1121, but removes the target nozzle to the b fixed slot 1121 during disassembly; 2. The target nozzle matches the corresponding fixed slot 1121, but the target nozzle is damaged or other abnormal situations occur during use, resulting in a significant change in weight. Therefore, when the error between the gravity information and the mass information is greater than the preset threshold, the control component 130 can also generate corresponding prompt information to prompt the staff to check and handle the abnormal situation during the nozzle replacement process.

[0094] Optionally, a corresponding display screen may be provided in the control component 130 to display the received gravity information.

[0095] Optionally, the nozzle and the laser head 120 can be installed and fixed by pressing to reduce the disadvantages such as misalignment caused by threaded installation. Considering the stability between the nozzle and the laser head 120 when using the nozzle, the laser head 120 can be provided with an elastic member, which can be sleeved on the periphery of the laser head 120 to fix the nozzle installed on the laser head 120 through the elastic member.

[0096] Wherein, when the laser head 120 is installed with the target nozzle, the elastic member moves along the axial direction C, close to the target nozzle, to fix the target nozzle. When the laser head 120 needs to install the target nozzle, the elastic member can move along the axial direction C, close to the target nozzle, to fix the target nozzle on the laser head 120. When the laser head 120 removes the target nozzle, the elastic member moves along the axial direction C, away from the target nozzle, to detach from the target nozzle. When the laser head 120 needs to remove the target nozzle, the elastic member can move along the axial direction C, away from the target nozzle, to detach from the target nozzle to achieve the disassembly between the laser head 120 and the target nozzle. The target nozzle can be fixed and detached by the up and down movement of the elastic member provided on the laser head 120, which effectively improves the stability and effectiveness of the nozzle installed on the laser head 120, reduces the adverse situation of the nozzle detaching from the laser head 120 during laser processing, and thus improves the stability and safety of laser processing.

[0097] For example, corresponding elastic sleeves, springs, balls and other structures may be provided in the elastic member. The elastic sleeve is deformed toward or away from the target nozzle by applying pressure on the spring. A corresponding groove area may be provided on the nozzle 111 to be replaced. The size and shape of the groove area correspond to the structural parameters of the ball. When the elastic sleeve is deformed along the axial direction C toward the target nozzle, the ball may move into the groove area to fix the laser head 120 to the target nozzle. When the elastic sleeve is deformed along the axial direction C away from the target nozzle, the ball may move out of the groove area to separate the laser head 120 from the target nozzle.

[0098] It should be noted that, when the laser head 120 removes the target nozzle, the moving member 113 can drive the carrier 112 to approach the laser head 120 in the replacement area 140, and the carrier 112 can provide a driving force for the elastic member to move away from the target nozzle. The relative movement between the carrier 112 and the elastic member on the laser head 120 can make the elastic member on the laser head 120 abut against the carrier 112, and the carrier 112 provides the elastic member on the laser head 120 with a driving force in the axial direction C away from the target nozzle, so that the elastic member can normally release the target nozzle and remove the target nozzle and place it back on the carrier 112. The disengagement control of the elastic member can be achieved by the movement of the nozzle assembly 110 and the abutment with the laser head 120, which effectively improves the success rate of the laser head 120 when removing the target nozzle.

[0099] See also Figure 3 , Figure 3 A flow chart of a nozzle replacement method provided in an embodiment of the present application is provided. The method is applied to the laser processing device described in any of the above embodiments, and the method includes steps S210-S220.

[0100] Step S210, through the control component, according to the replacement requirements, determine the target nozzle and the target replacement position corresponding to the target nozzle among the multiple nozzles to be replaced on the nozzle assembly, and control the laser head to move to the target replacement position.

[0101] Step S220, installing or removing the target nozzle at the target replacement position through the laser head.

[0102] It should be noted that, at the target replacement position, the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle.

[0103] exist Figure 3In the illustrated embodiment, taking into account the replacement requirements of different types of nozzles corresponding to different processing requirements, the control component can determine the target nozzle required by the laser head and the target replacement position corresponding to the target nozzle among the nozzles to be replaced in the nozzle assembly according to the actual replacement requirements of the laser head, thereby controlling the laser head to move to the target replacement position so that the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle, so that the laser head can install or disassemble the target nozzle at the target replacement position through the coaxial relative position.

[0104] Optionally, the control component may include: an image sensor and a controller. The image sensor may be fixedly arranged at a non-laser outlet of the laser head, the image sensor moves synchronously with the laser head, and the image sensor is in communication connection with the controller.

[0105] Optionally, see Figure 4 , Figure 4 A detailed flowchart diagram of the first step S210 provided in an embodiment of the present application, step S210 may include steps S2111-S2114.

[0106] Step S2111: acquiring calibration images of multiple nozzles to be replaced on the nozzle assembly through an image sensor.

[0107] Among them, the calibration images of multiple nozzles to be replaced on the nozzle assembly can be obtained by using an image sensor, and the calibration images are sent to the controller for processing.

[0108] For example, the image sensor may be various types of CMOS (Complementary Metal-Oxide-Semiconductor) sensors, CCD (Charge-Coupled Device), and other devices that can convert optical signals into electrical signals to achieve corresponding imaging functions.

[0109] Step S2112, through the controller, determine the target aperture according to the replacement requirement, and determine the calibrated aperture of each nozzle to be replaced from the received calibration image, and determine the target nozzle based on the target aperture and multiple calibrated apertures.

[0110] Among them, the controller can determine the target aperture of the nozzle required by the laser head according to the replacement requirements of the actual processing of the laser head, and determine the calibrated aperture of each nozzle to be replaced from the calibration image, so as to compare the target aperture with multiple calibrated apertures, and determine the target nozzle corresponding to the target aperture among the multiple nozzles to be replaced.

[0111] Optionally, the replacement requirement of the laser head may include various data such as the nozzle model and inner aperture parameters, and the controller can parse the replacement requirement and extract the target aperture of the nozzle required by the laser head.

[0112] Optionally, the controller can perform preprocessing such as smoothing, grayscale stretching, and binarization on the calibration image, and use edge detection and other algorithms to detect the edges of the inner holes of each nozzle to be replaced in the image. Based on the edge detection, the contour of the inner hole is extracted, and a measurement reference is determined in the image. The size of the inner hole diameter is calculated according to the extracted inner hole contour. For example, the corresponding calibration aperture can be obtained by calculating parameters such as the minimum circumscribed rectangle, diameter or circumference of the measured contour.

[0113] Optionally, taking into account the error caused by the angle during calibration, a corresponding error threshold can be set. For example, when the size error between the calibrated aperture and the target aperture is less than or equal to 0.05 mm, the calibrated aperture is considered to be the same as the target aperture, and the nozzle to be replaced corresponding to the calibrated aperture is taken as the target nozzle.

[0114] Step S2113, focusing processing is performed based on the target nozzle through the image sensor to determine the target replacement position.

[0115] In order to locate the target nozzle, the image sensor may continue to perform focusing processing on the determined target nozzle, and determine the corresponding target replacement position after the focusing is successful.

[0116] Optionally, when the image sensor focuses on the target nozzle, the inner hole of the nozzle of the target nozzle can be used as the focusing target. When the inner hole of the nozzle of the target nozzle coincides with the imaging center of the image sensor, the focusing is successful. On the plane perpendicular to the axial direction, the current position of the image sensor is used as the target replacement position.

[0117] For example, focusing processing can also be performed through image recognition and other methods, calibration images of the image sensor at different positions are obtained, and the corresponding target object, that is, the area of ​​the target nozzle, is identified from the calibration image. Through various types of evaluation functions, such as Tenengrad function, Laplacian function, SMD (sum of absolute grayscale difference) function, etc., the corresponding clarity judgment is performed on the area of ​​the target nozzle to obtain the sharpness or clarity parameters of the area of ​​the target nozzle, and the corresponding threshold parameters are set to compare with the sharpness or clarity parameters obtained by analysis to determine whether the calibration image meets the clarity conditions for focusing.

[0118] Step S2114, controlling the laser head to move to the target replacement position based on the target replacement position and the offset distance between the image sensor and the laser head through the controller.

[0119] Among them, considering the offset distance between the image sensor and the laser head, the controller can control the motion of the laser head according to the determined target replacement position combined with the offset distance, so as to control the laser head to move to the target replacement position for subsequent nozzle installation / disassembly processing.

[0120] Optionally, the offset distance may be the distance between the imaging center of the image sensor and the axis center of the laser output axis of the laser head on a plane perpendicular to the axial diameter direction. When the focusing is successful, the image sensor is at the corresponding target replacement position, and therefore, the laser head may be controlled to move to the corresponding target replacement position according to the size and direction of the offset distance.

[0121] exist Figure 4 In the illustrated embodiment, the target nozzle and the corresponding target replacement position can be determined by visual detection, which effectively improves the real-time and effectiveness of the target replacement position, thereby improving the efficiency and success rate of the laser head replacing the nozzle at the target replacement position.

[0122] Optionally, the control component may include: a controller, which is communicatively connected to a tooling device of the laser head to determine the movement of the laser head in real time.

[0123] Optionally, see Figure 5 , Figure 5 A detailed flowchart of the second step S210 provided in an embodiment of the present application, step S210 may include steps S2211-S2214.

[0124] Step S2211: construct a spatial coordinate system based on a preset origin through a controller, and determine the first coordinate of the inner hole of each nozzle to be replaced on the nozzle assembly in the spatial coordinate system.

[0125] Among them, the controller can be used to construct a corresponding spatial coordinate system based on the preset origin on the tooling to determine the first coordinate of the inner hole of each nozzle to be replaced on the nozzle assembly under the control coordinate system, thereby realizing the positioning of multiple nozzles to be replaced.

[0126] Optionally, the preset origin can be a tooling origin on a fixed workbench or a tooling table. The preset origin can be used as the origin of the coordinate system, and the corresponding spatial coordinate system can be constructed with the axial diameter direction as the z-axis direction. The first coordinate of the inner hole of each nozzle to be replaced can be calculated based on the length, height, width and other parameter data of the workbench or tooling table, combined with the actual position of the replacement area.

[0127] Step S2212, through the controller, determining a target aperture based on the replacement requirement, determining a target nozzle among multiple nozzles to be replaced based on the target aperture, and determining a target coordinate corresponding to the target nozzle within multiple first coordinates.

[0128] Among them, the controller can also determine the target aperture of the nozzle required by the laser head according to the replacement requirements of the actual processing of the laser head, and screen among multiple nozzles to be replaced based on the target aperture, and select the nozzle to be replaced whose inner aperture is the same as the target aperture as the target nozzle, as well as the target coordinates corresponding to the target nozzle in multiple first coordinates.

[0129] Optionally, the replacement requirement of the laser head may include multiple data such as the model of the nozzle and the inner aperture parameters. The controller can parse the replacement requirement and extract the target aperture of the nozzle required by the laser head. In addition, during spatial positioning, the first coordinate of each nozzle to be replaced and its corresponding model, inner aperture and other parameters are stored in the controller or in the cloud. The controller can screen in the database according to the target aperture, select the nozzle to be replaced with the same inner aperture as the target aperture as the target nozzle, and determine the target coordinate corresponding to the target nozzle in multiple first coordinates according to the relationship between the inner aperture and the first coordinate as the corresponding target replacement position.

[0130] Optionally, when there are multiple nozzles to be replaced whose inner apertures are the same as the target aperture, the controller may select the nozzle to be replaced that is closest to the laser head as the target nozzle for replacement processing.

[0131] Step S2213, determining, through the controller, the second coordinate of the current spatial position of the laser head in the spatial coordinate system based on the movement information of the laser head.

[0132] The controller can obtain the movement information of the laser head in real time based on the communication connection, so as to analyze the movement information of the laser head and determine the second coordinate of the current spatial position of the laser head in the spatial coordinate system.

[0133] Optionally, since there is a corresponding positional relationship between the tooling equipment of the laser head and the preset origin, the second coordinate of the current spatial position of the laser head in the spatial coordinate system when the nozzle needs to be replaced can be determined based on the movement information of the laser head.

[0134] Step S2214, through the controller, based on the second coordinate and the target coordinate, control the laser head to move to the target replacement position.

[0135] The second coordinate can be used as the starting point of the movement, and the target coordinate can be used as the end point of the movement, that is, the target replacement position, and the laser head can be controlled to move to the target replacement position for subsequent nozzle installation / disassembly processing.

[0136] exist Figure 5In the illustrated embodiment, the target nozzle and the corresponding target replacement position can be determined by determining the spatial coordinates, which effectively improves the efficiency and accuracy of determining the target replacement position, thereby improving the efficiency and success rate of replacing the nozzle of the laser head at the target replacement position.

[0137] Since the principle of solving the problem by the nozzle replacement method in the embodiment of the present application is similar to that of the aforementioned embodiment of the laser processing device, the implementation of the nozzle replacement method in this embodiment can refer to the description in the aforementioned embodiment of the laser processing device, and the repeated parts will not be repeated.

[0138] The present application also provides an electronic device, which includes a memory and a processor, wherein the memory stores program instructions, and when the processor reads and runs the program instructions, the steps in any one of the nozzle replacement methods provided in the present embodiment are executed. It should be understood that the electronic device can be a personal computer (PC), a tablet computer, a smart phone, a personal digital assistant (PDA), or other electronic device with logic computing functions.

[0139] An embodiment of the present application further provides a computer program product, which includes a computer program / instructions. When the computer program / instructions are executed by a processor, the steps in any implementation of the above-mentioned nozzle replacement method are implemented.

[0140] In several embodiments provided in the present application, it should be understood that the disclosed device can also be implemented in other ways. The device embodiments described above are merely schematic, for example, the block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices according to the multiple embodiments of the present application. In this regard, each box in the block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram, and the combination of the block diagrams, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0141] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0142] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0143] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0144] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

[0145] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A laser processing device, characterized in that: The device comprises: a nozzle assembly, a laser head and a control assembly; Wherein, the nozzle assembly is arranged in the replacement area of ​​the laser head, and the control assembly is connected to the laser head; The nozzle assembly is used to accommodate a plurality of nozzles to be replaced; The control component is used to determine a target nozzle and a target replacement position corresponding to the target nozzle among the plurality of nozzles to be replaced on the nozzle assembly according to a replacement requirement, and control the laser head to move to the target replacement position; At the target replacement position, the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle, and the laser head is used to install or remove the target nozzle at the target replacement position.

2. The device according to claim 1, characterized in that in, The nozzle assembly includes a bearing member and a moving member; The bearing member is connected to the moving member; The carrier is used to carry a plurality of nozzles to be replaced; In the axial direction of the nozzle to be replaced, the moving member is used to drive the supporting member to approach or move away from the laser head in the replacement area.

3. The device according to claim 2, characterized in that in, The bearing member is provided with a plurality of fixing grooves; Each of the fixing grooves is used to accommodate the corresponding nozzle to be replaced; A gravity sensor is provided at the bottom of the fixing groove; The gravity sensor is used to obtain gravity information in the fixing groove; The control component is used to determine whether the target nozzle is installed / disassembled according to the received gravity information.

4. The device according to claim 3, characterized in that in, In the case where the laser head is installed with the target nozzle, if it is determined that the control component detects that the gravity information is a target value, it is determined that the installation of the target nozzle is completed; In the case where the laser head is disassembling the target nozzle, if it is determined that the control component detects that the error between the gravity information and the mass information of the target nozzle is less than or equal to a preset threshold, it is determined that the disassembly of the target nozzle is complete.

5. The device according to claim 2, characterized in that in, The laser head is provided with an elastic member; When the laser head is mounted with the target nozzle, the elastic member moves along the axial direction to approach the target nozzle and fix the target nozzle; When the laser head is detached from the target nozzle, the elastic member moves away from the target nozzle along the axial direction to be detached from the target nozzle.

6. The device according to claim 5, characterized in that in, In the case where the laser head is disassembled from the target nozzle, the moving member is used to drive the carrier member to approach the laser head in the replacement area; The bearing member is used to provide a driving force for the elastic member to move away from the target nozzle.

7. The device according to claim 2, characterized in that in, The moving part includes: a driving part, a guide part and a bracket; The first surface of the bracket is connected to the bearing member, and the driving member is connected to the second surface of the bracket through the guide member; The driving member is used to provide driving force for the bracket; The guide member is used to limit the moving direction of the bracket; The bracket is used for supporting the bearing member to move.

8. A nozzle replacement method, characterized in that: The method is applied to the laser processing device according to any one of claims 1 to 7, and the method comprises: By means of the control component, according to the replacement requirement, a target nozzle and a target replacement position corresponding to the target nozzle are determined among the multiple nozzles to be replaced on the nozzle assembly, and the laser head is controlled to move to the target replacement position; At the target replacement position, the laser output axis of the laser head is coaxial with the inner hole axis diameter of the target nozzle; the target nozzle is installed or removed at the target replacement position through the laser head.

9. The method according to claim 8, characterized in that in, The control component includes: an image sensor and a controller; the image sensor is fixedly arranged at the non-laser outlet of the laser head; the image sensor is communicatively connected with the controller; The control component determines a target nozzle and a target replacement position corresponding to the target nozzle among a plurality of nozzles to be replaced on the nozzle component according to a replacement requirement, and controls the laser head to move to the target replacement position, including: Acquiring calibration images of the plurality of nozzles to be replaced on the nozzle assembly through the image sensor; Determining, by the controller, a target aperture according to the replacement requirement, and determining a calibrated aperture of each nozzle to be replaced from the received calibration image, and determining the target nozzle based on the target aperture and a plurality of the calibrated apertures; By means of the image sensor, focusing processing is performed based on the target nozzle to determine the target replacement position; The controller controls the laser head to move to the target replacement position based on the target replacement position and the offset distance between the image sensor and the laser head.

10. The method according to claim 8, characterized in that in, The control component includes: a controller; the controller is communicatively connected with the tooling equipment of the laser head; The control component determines a target nozzle and a target replacement position corresponding to the target nozzle among a plurality of nozzles to be replaced on the nozzle component according to a replacement requirement, and controls the laser head to move to the target replacement position, including: By means of the controller, a spatial coordinate system is constructed based on a preset origin, and a first coordinate of an inner hole of each nozzle to be replaced on the nozzle assembly is determined in the spatial coordinate system; By means of the controller, a target aperture is determined based on the replacement requirement, and the target nozzle is determined among the plurality of nozzles to be replaced based on the target aperture, and a target coordinate corresponding to the target nozzle is determined among the plurality of first coordinates; Determining, by the controller, a second coordinate of the current spatial position of the laser head in the spatial coordinate system based on the movement information of the laser head; The controller controls the laser head to move to the target replacement position based on the second coordinate and the target coordinate.

Images