Lens smudginess detection method and system, laser cutting machine and electronic equipment

Abstract

The invention relates to the technical field of laser dustproof lens smudginess detection, and provides a lens smudginess detection method and system, a laser cutting machine and electronic equipment. The lens smudginess detection method is applied to the laser cutting machine, the laser cutting machine comprises a laser and a dustproof lens, and the dustproof lens is located on a laser propagation path of the laser. The lens smudginess detection method comprises the following steps: detecting the smudginess degree of the dustproof lens; judging whether the smudginess degree of the dustproof lens is greater than a preset value; when the dirt degree of the dustproof lens is larger than a preset value, prompt information is controlled to be sent, and the prompt information is used for reminding a user to replace the dustproof lens. According to the lens smudginess detection method, whether the dustproof lens needs to be replaced or not can be automatically judged by detecting the smudginess degree of the dustproof lens, and the intelligent degree of the laser cutting machine is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of laser dustproof lens dirt detection, and in particular to a lens dirt detection method, system, laser cutting machine and electronic equipment. Background Art

[0002] With the advancement of science and technology and the continuous development of society, various DIY small desktop devices are becoming more and more popular, especially laser cutting machines, which are widely used in the fields of material cutting and engraving due to their simple structure, strong versatility and low cost.

[0003] The laser cutting machine will produce smoke during operation. The dust-proof lens is used to prevent the smoke from condensing on the laser optical path and damaging the laser. The dust-proof lens will affect the laser output efficiency after being contaminated by smoke, so it needs to be replaced from time to time.

[0004] In the related art, it is mainly determined manually whether the dustproof lens needs to be replaced, and the degree of intelligence needs to be improved. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a laser cutting machine that automatically identifies the degree of dirtiness of a dustproof lens to actively prompt the user to replace the dustproof lens, thereby improving the intelligence of the laser cutting machine.

[0006] The laser cutting machine according to the first aspect of the present application is applied to the laser cutting machine, the laser cutting machine includes a laser and a dustproof lens, the dustproof lens is located on the laser propagation path of the laser; the lens dirt detection method includes:

[0007] Detecting the degree of dirtiness of the dustproof lens;

[0008] Determining whether the dirtiness of the dustproof lens is greater than a preset value;

[0009] When the dirtiness of the dustproof lens is greater than a preset value, a prompt message is sent to remind the user to replace the dustproof lens.

[0010] According to the laser cutting machine of the embodiment of the present application, when the dirtiness of the dustproof lens is detected, the dirtiness of the dustproof lens is obtained. Then the dirtiness of the dustproof lens is compared with the preset value to determine whether the dirtiness of the dustproof lens is greater than the preset value. When it is determined that the dirtiness of the dustproof lens is greater than the preset value, it means that the dirtiness of the dustproof lens is high at this time and has reached the level that affects the output efficiency of the laser, so a prompt message is sent to the user so that the user can know that the dirtiness of the dustproof lens has reached the level that needs to be replaced, so that the user can replace the dustproof lens in time. In other words, the present application can automatically determine whether the dustproof lens needs to be replaced by detecting the dirtiness of the dustproof lens, which effectively improves the intelligence of the laser cutting machine.

[0011] According to one embodiment of the present application, the step of detecting the dirtiness of the dustproof lens includes:

[0012] The degree of dirtiness of the dust-proof lens is determined based on the laser energy absorption rate of the dust-proof lens.

[0013] According to one embodiment of the present application, the step of determining the degree of dirtiness of the dust-proof lens based on the laser energy absorption rate of the dust-proof lens includes:

[0014] The degree of dirtiness of the dust-proof lens is determined based on the laser energy absorption rate of the dust-proof lens and the heat capacity of the dust-proof lens.

[0015] According to one embodiment of the present application, the step of determining the degree of dirtiness of the dust-proof lens based on the laser energy absorption rate of the dust-proof lens includes:

[0016] Acquiring temperature data of the dustproof lens and ambient temperature data;

[0017] Determine the temperature difference data between the dustproof lens and the environment based on the temperature data of the dustproof lens and the environment temperature data;

[0018] The degree of dirtiness of the dustproof lens is determined based on the temperature difference data and the light output power of the laser.

[0019] According to one embodiment of the present application, the step of obtaining the temperature data of the dust-proof lens and the ambient temperature data includes:

[0020] With t period For the interval length, sampling the temperature of the dustproof lens and the ambient temperature;

[0021] The step of determining the temperature difference data between the dustproof lens and the environment based on the temperature data of the dustproof lens and the environment temperature data comprises:

[0022] Based on the temperature data of the dustproof lens and the ambient temperature data, determine a dustproof lens-ambient temperature difference array T, and determine the relationship between the temperature change rate of the dustproof lens and the temperature difference as D(T);

[0023] The step of determining the degree of dirtiness of the dustproof lens based on the temperature difference data and the light output power of the laser comprises:

[0024] Based on the formula The degree of dirtiness of the dustproof lens is determined, wherein K is the degree of dirtiness of the dustproof lens, and P is the light output power of the laser.

[0025] According to the second aspect of the present application, the lens dirt detection system includes:

[0026] A detection module, used to detect the degree of dirtiness of the dustproof lens;

[0027] A judging module, used to judge whether the dirtiness of the dustproof lens is greater than a preset value;

[0028] The control module is used for controlling the sending of a prompt message when the dirtiness of the dustproof lens is greater than a preset value, wherein the prompt message is used for reminding the user to replace the dustproof lens.

[0029] According to the third aspect of the present application, the laser cutting machine includes a control component, wherein the control component is used to execute the lens dirt detection method as described above.

[0030] According to the electronic device of the fourth aspect of the present application, the electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the above-mentioned lens dirt detection method is implemented.

[0031] According to the non-transitory computer-readable storage medium of the fifth aspect embodiment of the present application, the non-transitory computer-readable storage medium includes a computer program, and when the computer program is executed by the processor, the above-mentioned lens dirt detection method is implemented.

[0032] According to the computer program product of the sixth aspect of the present application, the computer program product includes a computer program, and when the computer program is executed by the processor, the above-mentioned lens dirt detection method is implemented.

[0033] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is one of the structural schematic diagrams of the laser cutting machine provided in the embodiment of the present application;

[0036] Figure 2 This is the second structural schematic diagram of the laser cutting machine provided in the embodiment of the present application;

[0037] Figure 3 The embodiment of this application provides Figure 2 A schematic diagram of the structure enlargement at the center A;

[0038] Figure 4 This is one of the partial structural schematic diagrams of the laser cutting machine provided in the embodiment of the present application;

[0039] Figure 5 This is the second partial structural schematic diagram of the laser cutting machine provided in the embodiment of the present application;

[0040] Figure 6 is a flow chart of a lens dirt detection method provided in an embodiment of the present application;

[0041] Figure 7 is a structural schematic diagram of a lens dirt detection system provided by the present application;

[0042] Figure 8 It is a structural schematic diagram of the electronic device provided by this application. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0044] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0046] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] The embodiments of the present application provide embodiments of a lens dirt detection method. It should be noted that although a logical sequence is shown in the flow chart, under certain data, the steps shown or described may be completed in an order different from that shown here.

[0049] Before introducing the lens dirt detection method of the embodiment of the present application, the application scenario of the lens dirt detection method is first explained. The lens dirt detection method of the present application can be applied to laser cutting machines, and can also be applied to smart terminals such as smart phones, tablets and computers, and can also be applied to servers. The present application does not make any special limitations here, as long as it can carry and implement the lens dirt detection method of the present application.

[0050] Combine the following Figures 1 to 8The present invention describes a lens dirt detection method, system, laser cutting machine and electronic equipment.

[0051] According to an embodiment of the first aspect of the present application, a lens dirt detection method is applied to a laser cutting machine, wherein the laser cutting machine includes a laser and a dustproof lens, wherein the dustproof lens is located on a laser propagation path of the laser; the lens dirt detection method includes:

[0052] S100, detecting the dirtiness of the dustproof lens;

[0053] S200, determining whether the dirtiness of the dustproof lens is greater than a preset value;

[0054] S300: When the dirtiness of the dustproof lens is greater than a preset value, control sending of a prompt message, wherein the prompt message is used to remind the user to replace the dustproof lens.

[0055] According to the lens dirtiness detection method of the embodiment of the present application, the dirtiness of the dustproof lens is detected to obtain the dirtiness of the dustproof lens. Then the dirtiness of the dustproof lens is compared with the preset value to determine whether the dirtiness of the dustproof lens is greater than the preset value. When it is determined that the dirtiness of the dustproof lens is greater than the preset value, it means that the dirtiness of the dustproof lens is relatively high at this time, and has reached a level that affects the output efficiency of the laser, so a prompt message is sent to the user so that the user can know that the dirtiness of the dustproof lens has reached a level that requires replacement, so that the user can replace the dustproof lens in time. In other words, the present application can automatically determine whether the dustproof lens needs to be replaced by detecting the dirtiness of the dustproof lens, thereby effectively improving the intelligence of the laser cutting machine.

[0056] It is understandable that the prompt information can be sent to the human-computer interaction interface, or can be conveyed to the user through sound or light.

[0057] In some embodiments, the step of detecting the dirtiness of the dust-proof lens comprises:

[0058] The degree of dirtiness of the dust-proof lens is determined based on the laser energy absorption rate of the dust-proof lens.

[0059] It is understandable that when detecting the dirtiness of the dustproof lens, the laser energy absorption rate of the dustproof lens is first obtained, and then the dirtiness of the dustproof lens is determined based on the laser energy absorption rate of the dustproof lens.

[0060] It is understandable that the laser energy absorption rate of the dustproof lens may be pre-stored. For example, the laser energy absorption rate of the dustproof lens may be measured in advance under different conditions.

[0061] In some examples, a laser is controlled to emit a laser to a dust-proof lens. The energy delivered to the dust-proof lens by the laser can be determined based on the output light power of the laser and the unit time. The absorbed energy of the dust-proof lens can be calculated based on the temperature change of the dust-proof lens within the unit time. Furthermore, the laser energy absorption rate of the dust-proof lens can be determined based on the energy delivered to the dust-proof lens by the laser and the absorbed energy of the dust-proof lens.

[0062] In some embodiments, the step of determining the degree of dirtiness of the dust-proof lens based on the laser energy absorption rate of the dust-proof lens comprises:

[0063] The degree of dirtiness of the dust-proof lens is determined based on the laser energy absorption rate of the dust-proof lens and the heat capacity of the dust-proof lens.

[0064] It can be understood that when using the laser energy absorption rate of the dust-proof lens to determine the degree of dirtiness of the dust-proof lens, the laser energy absorption rate of the dust-proof lens and the specific heat capacity of the dust-proof lens can be obtained at the same time. The degree of dirtiness of the dust-proof lens can be determined based on the laser energy absorption rate of the dust-proof lens and the specific heat capacity of the dust-proof lens, which can effectively improve the detection accuracy of the degree of dirtiness of the dust-proof lens.

[0065] In some embodiments, the step of determining the degree of dirtiness of the dust-proof lens based on the laser energy absorption rate of the dust-proof lens comprises:

[0066] Acquiring temperature data of the dustproof lens and ambient temperature data;

[0067] Determine the temperature difference data between the dustproof lens and the environment based on the temperature data of the dustproof lens and the environment temperature data;

[0068] The degree of dirtiness of the dustproof lens is determined based on the temperature difference data and the light output power of the laser.

[0069] It is understandable that by obtaining the temperature of the dustproof lens and the ambient temperature, and comparing and calculating the temperature of the dustproof lens and the ambient temperature, the temperature difference between the dustproof lens and the environment can be obtained. By detecting the temperature of the dustproof lens and the ambient temperature at different times, the temperature difference between the dustproof lens and the environment at different time points can be obtained. Then, the degree of dirtiness of the dustproof lens can be determined by using the temperature difference data and the output power of the laser, and the automatic detection of the degree of dirtiness of the dustproof lens can be realized.

[0070] In some embodiments, the step of obtaining the temperature data of the dust-proof lens and the ambient temperature data comprises:

[0071] With t period For the interval length, sampling the temperature of the dustproof lens and the ambient temperature;

[0072] The step of determining the temperature difference data between the dustproof lens and the environment based on the temperature data of the dustproof lens and the environment temperature data comprises:

[0073] Based on the temperature data of the dustproof lens and the ambient temperature data, determine a dustproof lens-ambient temperature difference array T, and determine the relationship between the temperature change rate of the dustproof lens and the temperature difference as D(T);

[0074] The step of determining the degree of dirtiness of the dustproof lens based on the temperature difference data and the light output power of the laser comprises:

[0075] Based on the formula The degree of dirtiness of the dustproof lens is determined, wherein K is the degree of dirtiness of the dustproof lens, and P is the light output power of the laser.

[0076] It is understandable that, with time t period The dust-proof lens temperature and the ambient temperature are sampled at intervals and subtracted to obtain a dust-proof lens-ambient temperature difference array T of length N. At the same time, the laser output power is recorded to obtain the laser output power array P. The binary table lookup method and linear interpolation method are used to obtain D(T), and the dust-proof lens dirtiness index can be calculated.

[0077] The principle of this application is further explained below:

[0078] According to Newton's law of cooling It can be seen that the cooling rate of an object is proportional to the difference between the object temperature and the ambient temperature. T is the instantaneous temperature of the object; T env. is the ambient temperature; k is the cooling rate, which depends on the material of the object and the ambient conditions; is the rate of change of the object's temperature over time

[0079] The temperature of the dustproof lens after stopping the light emission is subtracted from the ambient temperature data to obtain the lens-ambient temperature difference data. The lens-ambient temperature difference time curve is obtained by fitting the data.

[0080] T lens-env. (t)

[0081] The relationship between the lens temperature change rate and time is obtained by taking the derivative with respect to time:

[0082]

[0083] Eliminating the time parameter t, the relationship between the temperature change rate and the temperature difference is:

[0084]

[0085] The absorption power of the dustproof lens to the laser energy is:

[0086] P lens =K lens P LASER .

[0087] Among them, P lens is the absorption power of the dustproof lens to the laser energy; P LASER is the laser output power; K lens It is the absorption rate of laser energy by the dustproof lens.

[0088] The relationship between the heat of an object and its temperature change is

[0089] Q=cmΔT=CΔT.

[0090] Among them, Q is the heat increment of the object; c is the specific heat capacity of the substance; m is the mass of the object; ΔT is the temperature increment; and C is the heat capacity of the object.

[0091] The dustproof lens is relatively independent. Considering the general situation, its heat is only input by the laser and only dissipated by the environment, the heat change expression of the dustproof lens is:

[0092] dQ=[P lens +CD(T lens-env. )]dt

[0093] Then we get

[0094]

[0095] Then there are

[0096]

[0097] The dustproof lens dirtiness index is defined as

[0098]

[0099] Then there is

[0100]

[0101] Absorption rate of dustproof lens to laser energy K lens It is positively correlated with the degree of pollution, and the heat capacity C of the object is a constant, so the dust-proof lens dirtiness index K can be used to evaluate the degree of pollution of the dust-proof lens.

[0102] According to the embodiment of the second aspect of the present application, the lens dirt detection system and the lens dirt detection method correspond to each other. Figure 7 As shown, the lens dirt detection system includes:

[0103] A detection module 201 is used to detect the dirtiness of the dustproof lens;

[0104] A judging module 202 is used to judge whether the dirtiness of the dustproof lens is greater than a preset value;

[0105] The control module 203 is used to control sending a prompt message when the dirtiness of the dustproof lens is greater than a preset value, wherein the prompt message is used to remind the user to replace the dustproof lens.

[0106] According to an embodiment of the third aspect of the present application, the laser cutting machine includes a control component, and the control component is used to execute the above-mentioned lens dirt detection method.

[0107] In some embodiments, Figure 1 and Figure 2 As shown, the laser cutting machine includes:

[0108] Housing 10;

[0109] A Z-axis driving assembly 20 connected to the housing 10;

[0110] The laser 30 is connected to the Z-axis driving assembly 20, and the Z-axis driving assembly 20 is used to drive the laser 30 to move along the Z-axis;

[0111] A detection slider 40 connected to the laser 30, wherein the detection slider 40 can move relative to the laser 30 on the Z axis;

[0112] A contact switch 50 is installed on the laser 30 , and the contact switch 50 is located on the moving path of the detection slider 40 ;

[0113] The control component 60 is installed on the housing 10. The contact switch 50 and the Z-axis drive assembly 20 are both electrically connected to the control component 60. The control component 60 is used to receive the electrical signal generated by the contact switch 50. The control component 60 is configured to determine the working height of the laser 30 based on the electrical signal generated by the contact switch 50.

[0114] It is understandable that when the workpiece is located below the laser cutting machine, the control component 60 controls the Z-axis drive assembly 20 to drive the laser 30 to move along the Z-axis, so that the laser 30 and the detection slider 40 installed on the laser 30 move toward the workpiece. When the detection slider 40 touches the workpiece, under the reaction force of the workpiece, the detection slider 40 will move relative to the laser 30 and trigger the contact switch 50. After the contact switch 50 is triggered, an electrical signal will be generated, and the contact switch 50 will send the generated electrical signal to the control component 60, so that the control component 60 can determine the working height of the laser 30 according to the electrical signal generated by the contact switch 50, thereby realizing intelligent detection and determination of the working height of the laser 30, and can accurately and quickly determine the focus height.

[0115] It is understandable that when using a laser cutting machine, the focus height is a very important parameter that directly affects the quality and effect of engraving or cutting. The focus height refers to the distance between the laser head and the surface of the material being processed. The correct focus height ensures that the focus of the laser beam is on the surface of the material, thereby obtaining the best engraving or cutting effect.

[0116] Exemplarily, the control component 60 can determine the working duration of the Z-axis drive assembly 20 based on the time when the electrical signal generated by the contact switch 50 is received, that is, it can determine the duration that the Z-axis drive assembly 20 drives the laser 30 to move along the Z-axis toward the workpiece. The moving speed of the laser 30 can be determined based on the working parameters of the Z-axis drive assembly 20, and then the control component 60 can determine the moving distance of the laser 30, that is, the working height of the laser 30, and then the focusing height of the laser cutting machine can be determined.

[0117] In some embodiments, Figure 2 and Figure 3 As shown, the laser 30 includes a main body 301 and a guide column, the guide column is connected to a connection surface 302 of the main body 301 facing away from the shell 10, the detection slider 40 is sleeved on the guide column, the detection slider 40 can slide relative to the guide column, the contact switch 50 is installed on the connection surface 302, and the contact switch 50 is located between the detection slider 40 and the connection surface 302.

[0118] It is understandable that the guide column can guide the movement of the detection slider 40. The contact switch 50 is disposed between the detection slider 40 and the connection surface 302. When the detection slider 40 contacts the workpiece and moves toward the connection surface 302, the contact switch 50 is triggered.

[0119] In some embodiments, the laser cutting machine also includes a locking assembly, which is connected to the detection slider 40. The locking structure includes a locking state and an unlocking state. In the locking state, the locking structure fixedly connects the detection slider 40 and the laser 30. In the unlocking state, the detection slider 40 can move relative to the laser 30.

[0120] It is understandable that when the working height needs to be determined, the locking assembly is in an unlocked state, so that the detection slider 40 can move relative to the laser 30, so that the detection slider 40 can trigger the contact switch 50 after contacting the workpiece.

[0121] After the working height is determined, if the detection slider 40 is still in a movable state, it may affect the laser engraving. Therefore, after the working height is determined, that is, when the detection slider 40 triggers the contact switch 50, the locking assembly is locked, and the locking structure fixedly connects the detection slider 40 and the laser 30, so that the detection slider 40 can no longer move relative to the laser 30, avoiding affecting the laser engraving.

[0122] Specifically, the locking assembly includes a clamping member and a driving member, wherein the driving member is connected to the detection slider 40, and the driving member is connected to the clamping member, and the driving member is used to drive the clamping member to open and close so that the clamping member switches between a clamped state and a loosened state. In the clamped state, the clamping member is fixedly connected to the guide column, and in the loosened state, the clamping member and the guide column are spaced apart. It can be understood that when the detection slider 40 needs to be movable, the driving member is controlled to drive the clamping member to open, so that the clamping member is in a loosened state. When the detection slider 40 does not need to be movable, the driving member is controlled to drive the clamping member to clamp, so that the clamping member is in a clamped state, so that the clamping member is fixedly connected to the guide column and the detection slider 40.

[0123] Furthermore, the driving member is connected to the control member 60, and the control member 60 is configured to: determine that the detection slider 40 is in contact with the workpiece; control the Z-axis driving assembly 20 so that the detection slider 40 is in contact with the workpiece; determine that the contact switch 50 is triggered; control the driving member to drive the clamping member to clamp; and control the Z-axis driving assembly 20 to drive the laser 30 to move. In other words, after the detection slider 40 is in contact with the workpiece, the detection slider 40 is not moved first. When it is determined that the contact switch 50 is triggered to generate an electrical signal, the clamping member is first controlled to fix the detection slider 40 and the guide column, and then the Z-axis driving assembly 20 is controlled to drive the laser 30 and the detection slider 40 away from the workpiece, so that when the detection slider 40 is fixed, it will not protrude from the laser 30.

[0124] In some embodiments, the laser cutting machine includes at least two contact switches 50, and the at least two contact switches 50 include a first contact switch 50 and a second contact switch 50, and the first contact switch 50 and the second contact switch 50 are symmetrically arranged about the guide column.

[0125] It can be understood that, by providing at least two contact switches 50, when one of the contact switches 50 fails, the other contact switch 50 can still work normally, thereby improving the working stability of the laser cutting machine.

[0126] In some embodiments, a buffer block is connected to an end surface of the detection slider 40 that is away from the detection surface.

[0127] It can be understood that, by providing the buffer block, the detection slider 40 will not directly contact the workpiece, thereby preventing the workpiece from being damaged.

[0128] In some embodiments, Figure 2 and Figure 3 As shown, the laser cutting machine also includes a motion component 70, which is installed on the housing 10, and the Z-axis driving component 20 is connected to the motion component 70, and the motion component 70 is used to drive the Z-axis driving component 20 to move along the X-axis and / or Y-axis.

[0129] It is understandable that the Z-axis driving assembly 20 is driven to move along the X-axis and / or the Y-axis by the motion assembly 70, and the laser 30 is connected to the Z-axis driving assembly 20, and then the laser 30 also moves along the X-axis and / or the Y-axis. In other words, through the cooperation of the motion assembly 70 and the Z-axis driving assembly 20, the laser 30 can be moved in three directions of the X-axis, the Y-axis and the Z-axis, so that the laser 30 can perform fine engraving on the workpiece.

[0130] In some embodiments, Figure 2 As shown, the motion assembly 70 includes an X-axis driving assembly 701, the Z-axis driving assembly 20 is connected to the X-axis driving assembly 701, and the X-axis driving assembly 701 is used to drive the Z-axis driving assembly 20 to move along the X-axis direction.

[0131] It is understandable that the laser 30 will also move along the X-axis direction by driving the Z-axis driving assembly 20 along the X-axis direction through the X-axis driving assembly 701. In other words, through the cooperation of the X-axis driving assembly 701 and the Z-axis driving assembly 20, the laser 30 can move along the Z-axis and X-axis directions.

[0132] In some embodiments, Figure 2As shown, the motion assembly 70 includes a Y-axis driving assembly 702, the Y-axis driving assembly 702 is installed on the housing 10, the X-axis driving assembly 701 is connected to the Y-axis driving assembly 702, and the Y-axis driving assembly 702 is used to drive the X-axis driving assembly 701 to move.

[0133] It is understandable that the laser 30 will also move along the Y-axis direction by driving the Z-axis driving assembly 20 along the Y-axis direction through the Y-axis driving assembly 702. In other words, through the cooperation of the Y-axis driving assembly 702 and the Z-axis driving assembly 20, the laser 30 can be moved along the Z-axis and Y-axis directions.

[0134] In some examples, the X-axis driving assembly 701 , the Y-axis driving assembly 702 , and the Z-axis driving assembly 20 are, for example, driving motors or driving cylinders.

[0135] In some embodiments, Figure 2 and Figure 3 As shown, the housing 10 is formed with a receiving cavity 101 , and the moving component 70 is disposed in the receiving cavity 101 .

[0136] It can be understood that arranging the motion component 70 in the accommodating cavity 101 fully utilizes the space of the laser cutting machine, making the structure of the laser cutting machine compact and reducing the size of the laser cutting machine.

[0137] In some embodiments, Figure 1 and Figure 2 As shown, the laser cutting machine further includes a plurality of pillars 80 , which are connected to the housing 10 , and the plurality of pillars 80 are evenly arranged along the circumference of the housing 10 .

[0138] It is understandable that, by providing a plurality of pillars 80, the pillars 80 can support the housing 10. The plurality of pillars 80 are evenly arranged, so that the plurality of pillars 80 can play a stable supporting role.

[0139] In order to improve the engraving accuracy of the laser cutting machine, it is also necessary to calibrate the laser cutting machine horizontally. Figure 4 and Figure 5 ,

[0140] The laser cutting machine also includes a workbench, which is used to carry a workpiece.

[0141] The laser cutting machine also includes:

[0142] A calibration assembly connected to the laser 30, the calibration assembly comprising a calibration mounting plate 1, a first Y-axis detection block 2, a second Y-axis detection block 3 and a Z-axis detection block 4, the first Y-axis detection block 2 and the second Y-axis detection block 3 are stacked relative to the Z-axis detection block 4, the upper surfaces of the first Y-axis detection block 2, the second Y-axis detection block 3 and the Z-axis detection block 4 are all in the same plane, the first Y-axis detection block 2 and the second Y-axis detection block 3 are mounted on the first end of the calibration mounting plate 1, and the Z-axis detection block 4 is mounted on the calibration mounting plate 1, wherein the Z-axis detection block 4 is farther from the first end of the calibration mounting plate 1 than the first Y-axis detection block 2 and the second Y-axis detection block 3;

[0143] A detection assembly is arranged on a workbench, the detection assembly comprises a detection mounting plate 5, a first Y-axis pressure detection portion 6, a second Y-axis pressure detection portion 7 and a Z-axis pressure detection portion 8, the first Y-axis pressure detection portion 6 and the second Y-axis pressure detection portion 7 are symmetrically arranged relative to the Z-axis pressure detection portion 8, the lower surfaces of the first Y-axis pressure detection portion 6, the second Y-axis pressure detection portion 7 and the Z-axis pressure detection portion 8 are all in the same plane, the first Y-axis pressure detection portion 6 and the second Y-axis pressure detection portion 7 are installed on the first end of the detection mounting plate 5, and the Z-axis pressure detection portion 8 is installed on the detection mounting plate 5, wherein the Z-axis pressure detection portion 8 is farther from the first end of the detection mounting plate 5 than the first Y-axis pressure detection portion 6 and the second Y-axis pressure detection portion 7;

[0144] A signal source is provided at the Z-axis detection block 4 , and a signal detection component is provided at the Z-axis pressure detection portion 8 . The signal detection component is suitable for detecting the signal strength of the signal source, and the signal detection component is electrically connected to the control component 60 .

[0145] It can be understood that when performing the calibration operation, the motion component 70 and the Z-axis drive component 20 drive the calibration mounting plate 1 to move to the preset calibration position, and then continue to drive the calibration mounting plate 1 to move. At this time, the signal source can be detected by the signal detection component. The closer the signal source is to the signal detection component, the greater the signal strength detected by the signal detection component. Then, according to the detection result of the signal detection component, the calibration mounting plate 1 can be controlled to move in the direction of signal enhancement, thereby realizing the movement guidance of the calibration mounting plate 1, so as to quickly make the Z-axis detection block 4 and the Z-axis pressure detection part 8 abut. At this time, even if the first Y-axis detection block 2 does not abut against the first Y-axis pressure detection part 6, it is close to the first Y-axis pressure detection part 6, and even if the second Y-axis detection block 3 does not abut against the second Y-axis pressure detection part 7, it is close to the second Y-axis pressure detection part 7. Only slight adjustment is needed to make the first Y-axis detection block 2 abut against the first Y-axis pressure detection part 6, and the second Y-axis detection block 3 abut against the second Y-axis pressure detection part 7, so that the horizontal calibration is simpler and faster. When the Z-axis detection block 4 and the Z-axis pressure detection unit 8 are in contact, the Z-axis pressure detection unit 8 will detect pressure. When the first Y-axis detection block 2 and the first Y-axis pressure detection unit 6 are in contact, the first Y-axis pressure detection unit 6 will detect pressure. When the second Y-axis detection block 3 detects and abuts against the second Y-axis pressure detection unit 7, the second Y-axis pressure detection unit 7 will detect pressure. Then, according to the detection data of the first Y-axis pressure detection unit 6, the second Y-axis pressure detection unit 7 and the Z-axis pressure detection unit 8, the positions of the first Y-axis detection block 2, the second Y-axis detection block 3 and the Z-axis detection block 4 can be determined. When it is determined that the first Y-axis detection block 2 and the first Y-axis pressure detection unit 6 are in contact, the second Y-axis detection block 3 and the second Y-axis pressure detection unit 7 are in contact, and the Z-axis detection block 4 and the Z-axis pressure detection unit 8 are in contact, the Z-axis coordinate of the Z-axis detection block 4 at this time is obtained. The Z-axis coordinate at this time is the Z value in the calibration point coordinate parameters. Based on the coordinates of the first Y-axis detection block 2 and the second Y-axis detection block 3 at this time, the Y value and U value in the calibration point coordinate parameters can be determined. There is no need to manually judge whether the detection block is in contact with the pressure detection part, which improves the intelligence level of the horizontal calibration and can effectively avoid deviations in the obtained calibration point coordinate parameters.

[0146] It can be understood that the Y value and U value in the calibration point coordinate parameters are determined based on the coordinates of the first Y-axis detection block 2 and the second Y-axis detection block 3 at this time. The Y value and U value in the calibration point coordinate parameters can be determined by the coordinates of the midpoint of the line connecting the first Y-axis detection block 2 and the second Y-axis detection block 3, or the Y value and U value in the calibration point coordinate parameters can be determined by combining the coordinate parameters of the first Y-axis detection block 2 and the second Y-axis detection block 3.

[0147] It should be noted that the end of the detection mounting plate 5 close to the calibration mounting plate 1 is an arc-shaped structure, and the detection mounting plate 5 can also be a circular structure.

[0148] In one embodiment of the present application, the laser cutting machine also includes a calibration component, which is used to calibrate the movement of the calibration mounting plate 1, and the calibration component includes a first Y-axis calibration component, a second Y-axis calibration component and a Z-axis calibration component. The first Y-axis calibration component is arranged between the first Y-axis pressure detection part 6 and the end of the first end of the detection mounting plate 5, the second Y-axis calibration component is arranged between the second Y-axis pressure detection part 7 and the end of the first end of the detection mounting plate 5, and the Z-axis calibration component is arranged between the Z-axis pressure detection part 8 and the first Y-axis pressure detection part 6. The connecting line between the first Y-axis calibration component and the first Y-axis pressure detection part 6, the connecting line between the second Y-axis calibration component and the second Y-axis pressure detection part 7, and the connecting line between the Z-axis calibration component and the Z-axis pressure detection part 8 are all parallel to each other.

[0149] It can be understood that the movement of the calibration mounting plate 1 can be preliminarily calibrated through the calibration assembly, so that the first Y-axis detection block 2 moves in the direction of the first Y-axis pressure detection part 6, the second Y-axis detection block 3 moves in the direction of the second Y-axis pressure detection part 7, and the Z-axis detection block 4 moves in the direction of the Z-axis pressure detection part 8.

[0150] Specifically, the first Y-axis calibration piece is located in front of the first Y-axis pressure detection part 6, that is, the first Y-axis detection block 2 needs to pass through the first Y-axis calibration piece before it can move to the first Y-axis pressure detection part 6, and the first Y-axis calibration piece allows the first Y-axis detection block 2 to pass through, and the second Y-axis detection block 3 or the Z-axis detection block 4 cannot pass through the first Y-axis calibration piece, thereby ensuring that the first Y-axis detection block 2 passes through the first Y-axis calibration piece and moves to the first Y-axis pressure detection part 6, ensuring the accuracy of the horizontal calibration. The principles of the second Y-axis calibration piece and the Z-axis calibration piece are the same as those of the first Y-axis calibration piece, and will not be repeated here.

[0151] According to an embodiment of the fourth aspect of the present application, Figure 8 As shown, the electronic device may include: a processor 310, a communication interface 320, a memory 330 and a communication bus 340, wherein the processor 310, the communication interface 320 and the memory 330 communicate with each other via the communication bus 340. The processor 310 may call the logic instructions in the memory 330 to execute the lens dirt detection method, which includes:

[0152] Detecting the degree of dirtiness of the dustproof lens;

[0153] Determining whether the dirtiness of the dustproof lens is greater than a preset value;

[0154] When the dirtiness of the dustproof lens is greater than a preset value, a prompt message is sent to remind the user to replace the dustproof lens.

[0155] In addition, the logic instructions in the above-mentioned memory 330 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. 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 of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0156] On the other hand, the present application also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the lens dirt detection method provided by the above methods, and the method includes:

[0157] Detecting the degree of dirtiness of the dustproof lens;

[0158] Determining whether the dirtiness of the dustproof lens is greater than a preset value;

[0159] When the dirtiness of the dustproof lens is greater than a preset value, a prompt message is sent to remind the user to replace the dustproof lens.

[0160] According to an embodiment of the fifth aspect of the present application, the present application also includes a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method for detecting lens dirt provided above is implemented, and the method includes:

[0161] Detecting the degree of dirtiness of the dustproof lens;

[0162] Determining whether the dirtiness of the dustproof lens is greater than a preset value;

[0163] When the dirtiness of the dustproof lens is greater than a preset value, a prompt message is sent to remind the user to replace the dustproof lens.

[0164] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0165] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, or of course by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment. .

[0166] Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A method for detecting lens dirtiness, characterized in that: Applied to a laser cutting machine, the laser cutting machine includes a laser and a dustproof lens, the dustproof lens is located on the laser propagation path of the laser; the lens dirt detection method includes: Detecting the degree of dirtiness of the dustproof lens; Determining whether the dirtiness of the dustproof lens is greater than a preset value; When the dirtiness of the dustproof lens is greater than a preset value, a prompt message is sent to remind the user to replace the dustproof lens.

2. The lens dirt detection method according to claim 1, characterized in that: The step of detecting the dirtiness of the dustproof lens comprises: The degree of dirtiness of the dust-proof lens is determined based on the laser energy absorption rate of the dust-proof lens.

3. The lens dirt detection method according to claim 2, characterized in that: The step of determining the degree of dirtiness of the dust-proof lens based on the laser energy absorption rate of the dust-proof lens comprises: The degree of dirtiness of the dust-proof lens is determined based on the laser energy absorption rate of the dust-proof lens and the heat capacity of the dust-proof lens.

4. The lens dirt detection method according to claim 2, characterized in that: The step of determining the degree of dirtiness of the dust-proof lens based on the laser energy absorption rate of the dust-proof lens comprises: Acquiring temperature data of the dustproof lens and ambient temperature data; Determine the temperature difference data between the dustproof lens and the environment based on the temperature data of the dustproof lens and the environment temperature data; The degree of dirtiness of the dustproof lens is determined based on the temperature difference data and the light output power of the laser.

5. The lens dirt detection method according to claim 4, characterized in that: The step of obtaining the temperature data of the dustproof lens and the ambient temperature data comprises: With t period For the interval length, sampling the temperature of the dustproof lens and the ambient temperature; The step of determining the temperature difference data between the dustproof lens and the environment based on the temperature data of the dustproof lens and the environment temperature data comprises: Based on the temperature data of the dustproof lens and the ambient temperature data, determine a dustproof lens-ambient temperature difference array T, and determine the relationship between the temperature change rate of the dustproof lens and the temperature difference as D(T); The step of determining the degree of dirtiness of the dustproof lens based on the temperature difference data and the light output power of the laser comprises: Based on the formula The degree of dirtiness of the dustproof lens is determined, wherein K is the degree of dirtiness of the dustproof lens, and P is the light output power of the laser.

6. A lens dirt detection system, characterized in that: include: A detection module, used to detect the degree of dirtiness of the dustproof lens; A judging module, used to judge whether the dirtiness of the dustproof lens is greater than a preset value; The control module is used for controlling the sending of a prompt message when the dirtiness of the dustproof lens is greater than a preset value, wherein the prompt message is used for reminding the user to replace the dustproof lens.

7. A laser cutting machine, characterized in that: The method comprises a control component, wherein the control component is used to execute the lens dirt detection method according to any one of claims 1 to 5.

8. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the lens dirt detection method according to any one of claims 1 to 5 is implemented.

9. A non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium comprising a computer program, characterized in that: When the computer program is executed by a processor, the lens dirt detection method according to any one of claims 1 to 5 is implemented.

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