Fault detection device and fault detection system

Abstract

The utility model relates to the technical field of fault detection, in particular to a fault detection device and a fault detection system for a laser marking machine. According to the technical scheme, the fault detection device is used for the laser marking machine and comprises a terminal block interface, an IO interface, a control unit and a display unit. The terminal block interface is connected with a terminal block of the laser marking machine; the IO interface is connected with the input / output end of the laser marking machine; the control unit is in communication connection with the terminal block interface and the IO interface and receives input and output signals of the laser marking machine. The display unit is in communication connection with the control unit.

Description

Technical Field

[0001] The utility model relates to the technical field of fault detection, in particular to a fault detection device and a fault detection system for a laser marking machine. Background Technique

[0002] A laser marking machine is a device that uses laser technology to mark the surface of materials. The working principle of a laser marking machine is to use the high energy density of a laser beam to evaporate, oxidize or chemically change a part of the material surface, thereby forming a visible mark. A laser marking machine usually consists of structures such as a laser generator, a scanning galvanometer, a light shielding valve, and a control substrate unit. When the laser marking machine is working, if a fault occurs in the laser marking machine, its fault manifestations are usually abnormal marking effects, abnormal signal processing, etc. However, the specific components that have faults and abnormalities in the laser marking machine may be one or more of the above structures, and it is impossible to directly determine.

[0003] In the prior art, when judging whether a fault occurs in the operation of a laser marking machine and the specific fault location, technicians need to stay beside the product, continuously manually start the corresponding functions of each component in the laser marking machine, and use the human eye to observe or measure whether the fault recurs. It is very difficult to ensure the accuracy of the operator's manual fault judgment and the efficiency is low. Summary of the Invention

[0004] In view of the above problems, in the technical solution of the present utility model, a fault detection device and a fault detection system for a laser marking machine are provided, which can be connected to the laser marking machine, control the internal single-component structure or the overall automatic continuous operation of the laser marking machine, monitor and record the corresponding signal input and output conditions of the laser marking machine, automatically detect the operation conditions of the main component units in the laser marking machine, and real-time detect and record whether a fault of abnormal operation occurs during the working process of the laser marking machine, thereby providing a data-based judgment basis for technicians and improving the accuracy and detection efficiency of laser marking machine fault detection.

[0005] On the one hand, in the technical solution of the present utility model, a fault detection device for a laser marking machine is provided, including a terminal block interface, an IO interface, a control unit, and a display unit. The terminal block interface is connected to the terminal block of the laser marking machine; the IO interface is connected to the input and output ends of the laser marking machine; the control unit is communicatively connected to the terminal block interface and the IO interface respectively, and receives the input and output signals of the laser marking machine; the display unit is communicatively connected to the control unit.

[0006] According to the technical solution of the present utility model, each port of the terminal block and the input / output end in the laser marking machine is usually used to connect and fix various electrical components and signal lines respectively, playing the role of centralized management and distribution of electrical connections. The fault detection device can communicate and connect with the main components inside the laser marking machine through the terminal block and the input / output end of the laser marking machine, monitor the input / output signals of the main components inside the laser marking machine, and respectively and real-time monitor the working states of the main components inside the laser marking machine according to the input / output signals during the working process of the laser marking machine, and display the working states of each component in the display unit in real time, so as to realize automatic detection and display of whether a fault occurs in the laser marking machine, lock the fault location range, and improve the accuracy and detection efficiency of fault detection of the laser marking machine.

[0007] In the technical solution of the present utility model, the terminal block interface includes a plurality of first point interfaces, and the plurality of first point interfaces are respectively communicatively connected to the laser oscillator, the scanning galvanometer, and the light shielding valve of the laser marking machine to receive corresponding input / output signals.

[0008] According to the technical solution of the present utility model, the fault detection device can detect the input / output signal of the laser oscillator through the first point interface connected to the laser oscillator in the terminal block interface, and the control unit calculates and analyzes the input signal and output signal of the laser oscillator to judge whether the laser oscillator is currently in a normal working state or a fault abnormal state. Similarly, the fault detection device can also judge whether the scanning galvanometer and the light shielding valve are currently in a normal working state or a fault abnormal state through the first point interfaces respectively connected to the scanning galvanometer and the light shielding valve in the terminal block interface.

[0009] In the technical solution of the present utility model, the IO interface includes a plurality of second point interfaces, and the plurality of second point interfaces are respectively communicatively connected to the signal receiving unit and the file switching unit in the laser marking machine to receive corresponding input / output signals.

[0010] According to the technical solution of the present utility model, the fault detection device can detect the input / output signal of the signal receiving unit through the second point interface connected to the signal receiving unit in the IO interface, and the control unit calculates and analyzes the input signal and output signal of the signal receiving unit to judge whether the signal receiving unit is currently in a normal working state or a fault abnormal state. Similarly, the fault detection device can also judge whether the file switching unit is currently in a normal working state or a fault abnormal state through the second point interface connected to the file switching unit in the IO interface.

[0011] In the technical solution of the present utility model, the control unit in the fault detection device receives the input and output signals in the laser marking machine through the terminal block interface and the IO interface, and judges the working states of the various components in the laser marking machine by respectively calculating the input and output signals of the various components in the laser marking machine.

[0012] Preferably, in the technical solution of the present utility model, the display unit is set as a touch screen, and the control unit can send the input and output signals of the various components in the laser marking machine received and the judgment results of their working states to the display unit for display on the touch screen. The operator can not only observe the detection results in real time through the touch screen, but also input the detection mode and adjust the detection parameters to the fault detection device.

[0013] On the other hand, in the technical solution of the present utility model, a fault detection system for a laser marking machine is further provided, which includes a laser marking machine and a fault detection device. The fault detection device includes a terminal block interface, an IO interface, a control unit and a display unit. The terminal block interface is connected to the terminal block; the IO interface is connected to the input and output ends of the laser marking machine; the control unit is communicatively connected to the terminal block interface and the IO interface to receive the input and output signals of the laser marking machine; the display unit is communicatively connected to the control unit.

[0014] According to the technical solution of the present utility model, the laser marking machine and the fault detection device in the fault detection system can operate synchronously. During the working process of the laser marking machine, the fault detection device monitors in real time according to the input and output signals of the various components inside the laser marking machine, so as to realize automatic judgment and display of whether a fault occurs in the laser marking machine and the specific fault location, improving the accuracy and detection efficiency of the laser marking machine fault detection.

[0015] In the technical solution of the present utility model, the laser marking machine in the fault detection system includes a terminal block and an input and output end: the terminal block is communicatively connected to the laser oscillator, the scanning galvanometer and the light-shielding valve of the laser marking machine; the input and output end is communicatively connected to the signal receiving unit and the file switching unit of the laser marking machine.

[0016] According to the technical solution of the present utility model, the various ports of the terminal block and the input and output end are usually used to respectively connect and fix various electrical components and signal lines to centrally transmit the input and output signals. The fault detection device is connected to the terminal block and the input and output end to obtain the input and output signals of the various components inside the laser marking machine.

[0017] In the technical solution of the present utility model, the terminal block interface includes a plurality of first point interfaces, and the plurality of first point interfaces are respectively communicatively connected to the laser oscillator, the scanning galvanometer and the light-shielding valve in the laser marking machine to receive the corresponding input and output signals.

[0018] In the technical solution of the present utility model, the IO interface includes a plurality of second point interfaces, and the plurality of second point interfaces are respectively communicatively connected to a signal receiving unit and a file switching unit in the laser marking machine to receive corresponding input and output signals. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of a fault detection system provided in an embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of a laser marking machine provided in an embodiment of the present utility model.

[0021] Figure 3 It is a schematic diagram of a fault detection device provided in an embodiment of the present utility model.

[0022] Figure 4 It is a schematic diagram of a terminal block interface in an embodiment of the present utility model.

[0023] Figure 5 It is a schematic diagram of an IO interface in an embodiment of the present utility model.

[0024] Figure 6 It is a display schematic diagram of a display unit provided in an embodiment of the present utility model.

[0025] Description of the reference numerals: 100 - fault detection system, 200 - laser marking machine, 201 - terminal block, 202 - input / output terminal, 210 - laser oscillator, 220 - scanning galvanometer, 230 - light-shielding valve, 240 - signal receiving unit, 250 - file switching unit, 1 - fault detection device, 2 - terminal block interface, 21 - first point interface, 3 - IO interface, 31 - second point interface, 4 - control unit, 5 - display unit. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Figure 1 It is a schematic diagram of a fault detection system provided in an embodiment of the present utility model.

[0028] Such as Figure 1As shown, in the embodiment of the present utility model, the fault detection system 100 includes a laser marking machine 200 and a fault detection device 1, and the fault detection device 1 is communicatively connected to the laser marking machine 200.

[0029] Figure 2 It is a schematic diagram of a laser marking machine provided in the embodiment of the present utility model.

[0030] As Figure 2 shown, the laser marking machine 200 includes a laser oscillator 210 for generating and emitting laser, a scanning galvanometer 220 for correcting the aiming marking position, a light shielding valve 230 and other laser control components for controlling the on / off of the laser, as well as an internal signal receiving unit 240, a file switching unit 250 and other operation control components.

[0031] The laser marking machine 200 further includes a terminal block 201 and an input / output terminal 202, which are used to connect and fix various components and signal lines respectively, and play a role in centralized management and distribution of electrical connections. Each component of the above laser marking machine 200 conducts data information communication through multiple ports in the terminal block 201 and / or the input / output terminal 202.

[0032] Figure 3 It is a schematic diagram of a fault detection device provided in the embodiment of the present utility model.

[0033] As Figure 3 shown, in the embodiment of the present utility model, a fault detection device 1 is disclosed. The fault detection device 1 is connected to the laser marking machine 200 and is used for fault detection of the laser marking machine 200. The fault detection device 1 includes a terminal block interface 2, an IO interface 3, a control unit 4 and a display unit 5.

[0034] The terminal block interface 2 is connected to the terminal block 201 of the laser marking machine 200; the IO interface 3 is connected to the input / output terminal 202 of the laser marking machine 200. The fault detection device 1 is communicatively connected to the laser marking machine 200 through the terminal block interface 2 and the IO interface 3 to obtain and monitor the input / output signals of each component inside the laser marking machine 200.

[0035] Figure 4 It is a schematic diagram of a terminal block interface in the embodiment of the present utility model.

[0036] As Figure 4As shown in the figure, in this embodiment, the terminal block interface 2 in the fault detection device 1 includes a total of 24 first-point interfaces 21, namely A1 - A12 and B1 - B12. Similarly, the terminal block 201 of the laser marking machine 200 has corresponding 24 ports. When the terminal block interface 2 of the fault detection device 1 is connected to the terminal block 201 of the laser marking machine 200, the 24 first-point interfaces 21 in the terminal block interface 2 are respectively connected to the 24 ports in the terminal block 201 in a one-to-one correspondence. Each first-point interface 21 can be communicatively or electrically connected to different components in the laser marking machine 200.

[0037] In this embodiment, it is configured that the first-point interface A1 and the first-point interface B1 are respectively connected to both ends of the power supply; the first-point interface A2 and the first-point interface B2 are respectively connected to the input end and the output end of the laser oscillator 210; the first-point interface A3 and the first-point interface B3 are respectively connected to the input end and the output end of the scanning galvanometer 220; the first-point interface A4 and the first-point interface B4 are respectively connected to the input end and the output end of the light-shielding valve 230, etc.

[0038] Figure 5 It is a schematic diagram of an IO interface in an embodiment of the present utility model.

[0039] As Figure 5 shown in the figure, in this embodiment, the IO interface 3 in the fault detection device 1 includes 37 second-point interfaces 31 numbered 1 - 37. Similarly, the input / output end 202 of the laser marking machine 200 has corresponding 37 ports. When the IO interface 3 of the fault detection device 1 is connected to the input / output end 202 of the laser marking machine 200, the 37 second-point interfaces 31 in the IO interface 3 are respectively connected to the 37 ports in the input / output end 202 in a one-to-one correspondence.

[0040] In this embodiment, it is configured that the second-point interface ① and the second-point interface ② are respectively connected to the input end and the output end of the signal receiving unit 240, and the second-point interface ③ and the second-point interface ④ are respectively connected to the input end and the output end of the file switching unit 250, etc.

[0041] It is worth mentioning that in other embodiments of the present utility model, the fault detection device 1 can be connected to different types of laser marking machines 200 for fault detection. The laser marking machine 200 may further include other different types of components, such as lighting components, cooling components, etc., which are not limited herein. As long as it can be ensured that the data input / output of the component is carried out through the terminal block 201 and / or the input / output end 202 for communication.

[0042] The control unit 4 is communicatively connected to the terminal block interface 2 and the IO interface 3 respectively, receives the input and output signals of each component in the laser marking machine 200, and determines the working state of each component according to the input and output signals of each component. The control unit 4 can be set as a combination of one or more control elements or control circuits such as a PLC control chip, and is specifically presented as a control box connected to the terminal block interface 2 and the IO interface 3.

[0043] The display unit 5 is communicatively connected to the control unit 4. The control unit 4 can send the input and output signals of each component in the laser marking machine 200 received and the judgment results of their working states to the display unit 5, and the display unit 5 directly presents them on the screen.

[0044] Preferably, in this embodiment, the display unit 5 is set as a touch screen. The operator can not only observe the detection results of the fault detection device 1 in real time through the touch screen, but also control and adjust the detection mode and measurement parameters of the fault detection device 1.

[0045] In the embodiment of the present utility model, the fault detection device 1 can be communicatively connected to each component inside the laser marking machine 200 through the terminal block 201 and the input / output terminal 202 of the laser marking machine 200, and monitor the input and output signals of each component inside the laser marking machine 200. According to the input and output signals, the real-time working states of each component inside the laser marking machine 200 are respectively monitored, and the states of each component are displayed in real time in the display unit 5.

[0046] Figure 6 It is a display schematic diagram of a display unit provided in the embodiment of the present utility model.

[0047] As Figure 6 shown, in this embodiment, the light-shielding valve 230 of the laser marking machine 200 can control the on / off of the emitted laser beam, so the signal interval time can directly reflect the on / off of the laser beam. By measuring the signal interval time, it can be judged whether the light-shielding valve 230 is in a normal working state or a fault abnormal state. The fault detection device 1 cyclically inputs ON / OFF signals to the terminal block 201 of the laser marking machine 200, and at the same time detects and records the actions of the light-shielding valve 230 such as the on / off of the laser beam, etc. If the signal interval time in the light valve detection matches the on / off time of the laser beam, the light-shielding valve 230 is in a normal working state; otherwise, the light-shielding valve 230 is in a fault abnormal state.

[0048] Similarly, each component inside the laser marking machine 200, such as the laser oscillator 210, the scanning galvanometer 220, the signal receiving unit 240, and the file switching unit 250, can determine whether the operation of the component is consistent with the command signal input by the fault detection device 1 based on the input signal sent by the fault detection device 1 to the component and the output signal fed back from the component to the fault detection device 1, so as to determine whether it is in a normal working state or a fault abnormal state.

[0049] In this embodiment, the laser marking machine 200 and the fault detection device 1 in the fault detection system 100 can run synchronously without a shutdown detection or pre-detection step. During the operation of the laser marking machine 200, the fault detection device 1 monitors the real-time operation status of each component inside the laser marking machine 200 according to the input and output signals of each component, and displays the detection status of each component on the display unit 5 in real time, so as to automatically detect and display whether a fault occurs in the operation of the laser marking machine 200 and the specific fault location, improve the accuracy and detection efficiency of the fault detection of the laser marking machine 200, and enable the operator to discover and solve the fault in a timely and accurate manner.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fault detection device for a laser marking machine, characterized in that: include: A terminal block interface connected to the terminal block of the laser marking machine; IO interface, connected to the input and output terminals of the laser marking machine; A control unit, which is respectively connected to the terminal block interface and the IO interface for communication and receives input and output signals of the laser marking machine; The display unit is communicatively connected with the control unit.

2. The fault detection device according to claim 1, characterized in that: The terminal block interface includes a plurality of first point interfaces, and the plurality of first point interfaces are respectively connected to the laser oscillator, the scanning galvanometer and the light shielding valve of the laser marking machine for communication, and receive the corresponding input and output signals.

3. The fault detection device according to claim 1, characterized in that: The IO interface includes a plurality of second point interfaces, and the plurality of second point interfaces are respectively communicatively connected with the signal receiving unit and the file switching unit of the laser marking machine to receive the corresponding input and output signals.

4. The fault detection device according to claim 2 or 3, characterized in that: The control unit receives input and output signals of the laser marking machine through the terminal block interface and the IO interface.

5. The fault detection device according to claim 4, characterized in that: The display unit is configured as a touch screen.

6. A fault detection system for a laser marking machine, characterized in that: It includes a laser marking machine and a fault detection device, wherein the fault detection device includes: A terminal block interface connected to the terminal block of the laser marking machine; IO interface, connected to the input and output terminals of the laser marking machine; A control unit, which is in communication connection with the terminal block interface and the IO interface, and receives input and output signals of the laser marking machine; The display unit is communicatively connected with the control unit.

7. The fault detection system according to claim 6, characterized in that: The terminal block is communicatively connected with the laser oscillator, scanning galvanometer and light shielding valve of the laser marking machine; The input and output ends are communicatively connected with the signal receiving unit and the file switching unit of the laser marking machine.

8. The fault detection system according to claim 7, characterized in that: The terminal block interface includes a plurality of first point interfaces, and the plurality of first point interfaces are respectively connected to the laser oscillator, the scanning galvanometer and the light shielding valve of the laser marking machine for communication, and receive the corresponding input and output signals.

9. The fault detection system according to claim 7, characterized in that: The IO interface includes a plurality of second point interfaces, and the plurality of second point interfaces are respectively communicatively connected with the signal receiving unit and the file switching unit of the laser marking machine to receive the corresponding input and output signals.

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