A tool condition monitoring system and machine tool system

Abstract

This utility model provides a tool condition monitoring system and a machine tool system, relating to the field of machine tool technology. The tool condition monitoring system is applied to a machine tool and includes a camera, a switch, a video recorder, and a monitor. The camera is connected to the switch, the switch is connected to the video recorder, and the video recorder is connected to the monitor. When multiple machine tools exist, multiple switches corresponding to the multiple machine tools are connected. Each machine tool's camera is correspondingly set to a first position, a second position, and a third position on each machine tool. The first position is for machining internal holes, the second position is for machining planes, and the third position is for machining external circles. This utility model can improve the timeliness of tool condition monitoring.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and more specifically, to a tool condition monitoring system and a machine tool system. Background Technology

[0002] Cutting tools are the core components of machine tools for cutting processes. They contact the workpiece through their cutting edges to remove material and form the desired shape and size. During cutting, cutting tools gradually wear down, leading to increased cutting forces and temperatures, which in turn affect the machining accuracy and surface roughness of the workpiece. When the cutting load is high, the cutting edge of the tool is subjected to significant cutting force impact, which may cause surface cracks that continue to propagate. Once these cracks reach a certain area, large-scale surface peeling occurs, resulting in chipping and premature tool failure. Therefore, the condition of the cutting tool directly affects workpiece quality and production efficiency.

[0003] Currently, tool condition monitoring largely relies on periodic manual inspections. However, this method has limitations, namely, it cannot monitor tool condition in real time. When tools show wear or damage, these problems are difficult to detect in a timely manner. This can lead to reduced machining accuracy of the workpiece, and may even result in the workpiece being scrapped, thus affecting workpiece quality and production efficiency. Utility Model Content

[0004] The problem this invention addresses is how to improve the timeliness of tool condition monitoring.

[0005] To address the aforementioned problems, this utility model provides a tool condition monitoring system and a machine tool system.

[0006] In a first aspect, this utility model provides a tool condition monitoring system applied to machine tools, comprising: a camera, a switch, a video recorder, and a display; the camera is connected to the switch, the switch is connected to the video recorder, and the video recorder is connected to the display; when multiple machine tools exist, multiple switches corresponding to the multiple machine tools are connected to each other;

[0007] Each camera corresponding to the machine tool is set to correspond to the first position, second position and third position of each machine tool;

[0008] Wherein, the first position is the position for machining the inner hole, the second position is the position for machining the plane, and the third position is the position for machining the outer circle.

[0009] Optionally, the camera includes a first camera, a second camera, and a third camera, wherein the camera corresponding to each machine tool is configured to correspond to the first position, second position, and third position of each machine tool, including:

[0010] The first camera corresponding to each of the machine tools is set to correspond to the second position and the third position of each of the machine tools;

[0011] The second camera corresponding to each of the machine tools is set to correspond to the first position and the third position of each of the machine tools;

[0012] The third camera corresponding to each machine tool is configured to correspond to the second position and the third position of each machine tool;

[0013] The shooting direction of the first camera is different from that of the third camera.

[0014] Optionally, the switch is connected to the first camera via a first network cable, the switch is connected to the second camera via a second network cable, and the switch is connected to the third camera via a third network cable.

[0015] Optionally, the machine tool includes a base, a column, and a crossbeam. The column is disposed above the base, and a base cable chain is provided on the side of the base. A junction box, a column cable chain, and the crossbeam are provided on the side of the column. The column cable chain is disposed above the junction box, and the crossbeam is disposed above the column cable chain.

[0016] One end of the first network cable, one end of the second network cable, and one end of the third network cable are connected to the switch. The other end of the first network cable passes through the base cable chain, the junction box, and the column cable chain, and is connected to the first camera. The other ends of the second network cable and the third network cable both pass through the base cable chain, the junction box, and the column cable chain, and are split at the crossbeam position to connect to the second camera and the third camera respectively.

[0017] Optionally, a walkway is provided within a preset range of the machine tool, the first camera is provided on the walkway, the walkway is provided with a bracket, the second camera is provided on the bracket, and the third camera is provided on the crossbeam.

[0018] Optionally, the multiple switches are connected to each other via a fourth network cable, which is laid along the ground.

[0019] Optionally, the tool status monitoring system further includes a power supply, and the switch, the video recorder and the display are respectively connected to the power supply. The display is located above the operating table, and the power supply, the switch and the video recorder are all located inside the operating table.

[0020] Optionally, the camera is an optical 48x network PTZ camera, and the camera has built-in infrared and white light.

[0021] Optionally, the tool condition monitoring system further includes a force sensor, which is disposed on the tool post and / or the worktable of the machine tool, and is connected to the display.

[0022] Secondly, this utility model provides a machine tool system, including the tool condition monitoring system and the machine tool as described in the first aspect.

[0023] The beneficial effects of this utility model's tool condition monitoring system and machine tool system are as follows: Since the main machining positions of machine tools are internal holes, planes, and external circles, the total shooting range of the camera used to collect machine tool video data can cover these three main machining positions, thus comprehensively capturing the tool's condition. The switch receives video data from the camera and transmits it quickly and stably to the video recorder. In the presence of multiple machine tools, multiple switches are interconnected. Each machine tool's corresponding switch transmits all machine tool video data to its corresponding video recorder, facilitating unified monitoring of tool conditions across multiple machine tools. The video recorder receives video data from the switch, stores the video data, and transmits the stored video data to the display. The display receives and displays the video data from the video recorder, allowing operators to observe the tool's condition remotely and in real time, eliminating the need for frequent close-up inspections of the machine tool, reducing labor intensity, and improving work efficiency. Furthermore, when tool conditions malfunction, such as tool wear or damage, operators can promptly detect and replace the tool to prevent a decline in workpiece quality. Attached Figure Description

[0024] Figure 1 This is a structural block diagram of the tool condition monitoring system in an embodiment of this utility model;

[0025] Figure 2 This is a structural block diagram of a tool condition monitoring system according to another embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the machine tool in an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Machine tool; 11. Base; 12. Column; 13. Crossbeam; 2. Base cable chain; 3. Junction box; 4. Column cable chain. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0030] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0031] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0032] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0034] like Figure 1 As shown in the figure, this utility model provides a tool status monitoring system applied to a machine tool, including: a camera, a switch, a video recorder, and a display. The camera is connected to the switch, the switch is connected to the video recorder, and the video recorder is connected to the display. When there are multiple machine tools, multiple switches corresponding to the multiple machine tools are connected to each other.

[0035] Each camera corresponding to the machine tool is set to correspond to the first position, second position and third position of each machine tool;

[0036] Wherein, the first position is the position for machining the inner hole, the second position is the position for machining the plane, and the third position is the position for machining the outer circle.

[0037] Specifically, cameras are positioned around machine tool 1. These cameras acquire video data of machine tool 1 machining internal holes, planes, and external diameters, and transmit the video data to a switch for effective tool monitoring. In some embodiments, only one machine tool 1 is monitored, and three cameras are used for it. One camera acquires video data of machine tool 1 machining internal holes, one camera acquires video data of machine tool 1 machining planes, and one camera acquires video data of machine tool 1 machining external diameters. Alternatively, one camera acquires video data of machine tool 1 machining internal holes and external diameters, while two cameras at different locations acquire video data of machine tool 1 machining planes and external diameters. Before transmitting the video data to the switch, the cameras encode and compress the video data to reduce the amount of data transmitted and improve transmission efficiency. Common encoding formats include Advanced Video Coding (AVC) and High Efficiency Video Coding (HEVC). In other embodiments, the cameras have high resolution and a certain optical zoom capability to meet the need for clear capture of the tool's status. Since the cutting tool and workpiece are in high-speed motion during machine tool processing, the camera needs to have low latency and no ghosting characteristics to ensure that the acquired video data can accurately reflect the real-time status of the cutting tool. This can avoid misjudgment of the cutting tool status due to video data delay or ghosting.

[0038] The switch receives video data from cameras and transmits it to the recorder. The switch has bandwidth management capabilities, dynamically allocating bandwidth based on the video data traffic from different cameras to ensure each camera receives sufficient bandwidth for smooth video transmission. If multiple cameras are directly connected to the recorder and transmit video data simultaneously, insufficient bandwidth may cause video data transmission delays, stuttering, or even loss. When adding cameras, simply connect the new cameras to the switch without affecting the existing camera and recorder connections. Furthermore, when real-time monitoring of the tools of multiple machine tools 1 is required, the switches corresponding to each machine tool 1 are connected to form a network topology. In this way, a switch corresponding to one machine tool 1 can receive video data not only from its corresponding camera but also from cameras corresponding to other machine tools 1, facilitating simultaneous display of tool videos from multiple machine tools 1 on a monitor for unified monitoring. In some embodiments, the switch uses Power over Ethernet (PoE) with a power supply voltage of 48V. The switch supports both 100Mbps and 1000Mbps transmission rates.

[0039] Since the video data received by the recorder from the switch is encoded and compressed, the recorder first decodes the video data and then converts the decoded video data into a storage format (such as MP4 or AVI) and stores it on a storage medium. Common storage media include internal hard drives, external hard drives, or network storage devices (such as NAS or cloud storage). The recorder employs appropriate storage management strategies to efficiently store video data. For example, video data is stored on the storage medium in chronological order, and an index is created for quick retrieval and playback of videos within a specific time period. Simultaneously, to prevent video data loss due to insufficient storage space, an automatic storage space management function can be set up. For example, when storage space reaches a preset threshold, the oldest stored video data is automatically deleted. The stored videos can be retrieved and played back when needed later. For example, when a quality problem is found in a finished workpiece (such as surface roughness or scratches), the stored video can be used to analyze the changes in the tool's state during processing to determine the tool's wear or damage. The recorder transmits the stored video data to the display. In some embodiments, to ensure the security of video data, the recorder has a data backup function, which can back up important video data to other storage media. In other embodiments, the recorder supports displaying 10 videos simultaneously.

[0040] The monitor receives and displays video data from the recorder. It features a high resolution (e.g., 1920×1080) and a high refresh rate (e.g., 120Hz). The monitor supports simultaneous display of video from multiple cameras. Operators can comprehensively monitor the tool status through the monitor, preventing a decline in workpiece quality and production efficiency caused by tool wear or damage.

[0041] In this embodiment, since the machining positions of machine tool 1 are mainly internal holes, planes, and external circles, the total shooting range of the camera used to collect video data of the machine tool 1 tools can cover these three main machining positions to comprehensively capture the tool status. The switch receives video data from the camera and transmits it quickly and stably to the recorder. In the case of multiple machine tools 1, multiple switches are interconnected. The switch corresponding to each machine tool 1 transmits the video data of all machine tool 1 tools to the recorder corresponding to each machine tool 1, facilitating unified monitoring of the tool status of multiple machine tool 1 tools. The recorder receives video data from the switch, stores the video data, and transmits the stored video data to the display. The display receives and displays the video data from the recorder, allowing operators to observe the tool status remotely in real time without frequently approaching the machine tool 1 for inspection, reducing labor intensity and improving work efficiency. Furthermore, when a problem occurs with the tool status, i.e., when the tool is worn or damaged, the operator can promptly detect and replace the tool to avoid a decline in workpiece quality.

[0042] Optionally, such as Figure 2 As shown, the camera includes a first camera, a second camera, and a third camera. Each camera corresponding to a machine tool is configured to correspond to a first position, a second position, and a third position of each machine tool, including:

[0043] The first camera corresponding to each of the machine tools is set to correspond to the second position and the third position of each of the machine tools;

[0044] The second camera corresponding to each of the machine tools is set to correspond to the first position and the third position of each of the machine tools;

[0045] The third camera corresponding to each machine tool is configured to correspond to the second position and the third position of each machine tool;

[0046] The shooting direction of the first camera is different from that of the third camera.

[0047] Specifically, a machine tool 1 is equipped with three cameras, each corresponding to a different combination of machining positions. Specifically, the first and third cameras, positioned differently, cover the planar machining position and the external cylindrical machining position, while the second camera covers the internal hole machining position and the external cylindrical machining position. This redundant design enables timely and accurate capture of tool status changes at different machining positions, achieving more comprehensive tool status monitoring. When the first camera malfunctions, the third camera, covering the same machining position as the first, can still provide partial video data; conversely, when the third camera malfunctions, the first camera, covering the same machining position as the third, can still provide partial video data, preventing monitoring interruptions and ensuring the stability and reliability of the tool status monitoring system. Furthermore, because the first and third cameras have different shooting directions, operators can observe the tool status at a machining position from multiple angles, avoiding blind spots caused by single-angle shooting and facilitating accurate judgment of tool wear or damage.

[0048] In some embodiments, since the shooting direction of the third camera is opposite to the viewing direction of the operator in front of the display, the video images of the planar machining position and the outer circular machining position acquired by the third camera are inverted, and the video can be horizontally flipped using a video recorder. In other embodiments, the shooting direction of the first camera is opposite to that of the third camera.

[0049] In this optional embodiment, each camera has a clearly defined monitoring target, and each camera has a different shooting direction, which can comprehensively cover the main processing positions of machine tool 1, avoid monitoring blind spots, and thus accurately obtain the tool status to determine whether the tool is worn or damaged. When the tool is worn or damaged, it is replaced in time to avoid a decline in processing quality and production efficiency.

[0050] Optionally, the switch is connected to the first camera via a first network cable, the switch is connected to the second camera via a second network cable, and the switch is connected to the third camera via a third network cable.

[0051] Specifically, compared to wireless connections, wired connections not only offer stronger anti-interference capabilities and higher transmission rates, but also eliminate signal attenuation issues. Therefore, each camera is equipped with a network cable—the first camera with a first network cable, the second camera with a second network cable, and the third camera with a third network cable—for connection to the switch. High-quality video data collected by each camera can be stably and quickly transmitted to the switch via the network cable. Even if the network cable of one camera malfunctions, the other cameras continue to collect video data and transmit it to the switch via the network cable, avoiding monitoring interruptions and ensuring the stability and reliability of the tool status monitoring system. In some embodiments, the first, second, and third network cables are all Cat5e shielded cables. In other embodiments, flexible conduits are used to protect the first, second, and third network cables.

[0052] In this optional embodiment, by using a first network cable, a second network cable, and a third network cable to connect the corresponding cameras and the switch respectively, the video data collected by each camera can be transmitted to the switch independently, which improves the transmission rate, avoids signal interference, and ensures the quality of video data.

[0053] Optionally, such as Figure 3 As shown, the machine tool includes a base, a column, and a crossbeam. The column is disposed above the base. A base cable chain is provided on the side of the base. A junction box, a column cable chain, and the crossbeam are provided on the side of the column. The column cable chain is disposed above the junction box, and the crossbeam is disposed above the column cable chain.

[0054] One end of the first network cable, one end of the second network cable, and one end of the third network cable are connected to the switch. The other end of the first network cable passes through the base cable chain, the junction box, and the column cable chain, and is connected to the first camera. The other ends of the second network cable and the third network cable both pass through the base cable chain, the junction box, and the column cable chain, and are split at the crossbeam position to connect to the second camera and the third camera respectively.

[0055] Optionally, a walkway is provided within a preset range of the machine tool, the first camera is provided on the walkway, the walkway is provided with a bracket, the second camera is provided on the bracket, and the third camera is provided on the crossbeam.

[0056] Specifically, the switch is located on one side of machine tool 1 (e.g., the west side). One end of the first network cable, one end of the second network cable, and one end of the third network cable are all connected to the switch. The other ends of the first, second, and third network cables are laid along the ground to the base cable carrier 2, then laid upwards through the junction box 3 to the column cable carrier 4. At the column cable carrier 4, the cables are split. The other end of the first network cable connects to the first camera. The other ends of the second and third network cables continue to be laid upwards to the crossbeam 13. At the crossbeam 13, the cables are split. The other end of the second network cable connects to the second camera, and the other end of the third network cable connects to the third camera. The junction box 3 facilitates the replacement of faulty network cables later.

[0057] The walkway is located on the other side of the machine tool 1 (e.g., the south side). The walkway can move up and down, allowing the operator to directly observe the three main processing positions. In some embodiments, the first camera is located at the bottom of the walkway, the second camera is located on a bracket on the walkway so as not to obstruct the operator's movement on the walkway, and the third camera is located on the crossbeam 13.

[0058] In this optional embodiment, the first network cable, the second network cable, and the third network cable are laid out reasonably along the structure of the machine tool 1. That is, one end of all network cables is connected to the switch, and the other end passes through the base drag chain 2 and the junction box 3 in sequence. Depending on the position of different cameras, the cables are split and connected at the position of the column drag chain 4 or the position of the crossbeam 13. This not only ensures aesthetics but also reduces the probability of network cable damage and enables more stable and faster transmission of video data.

[0059] Optionally, the multiple switches are connected to each other via a fourth network cable, which is laid along the ground.

[0060] Specifically, when real-time monitoring of the cutting tools of multiple machine tools 1 is required, a fourth network cable is used to connect the corresponding switches of each machine tool 1, ensuring efficient transmission of video data between the multiple switches. For example, a factory may have three machine tools 1, each corresponding to one of three switches (switch A, switch B, and switch C). Switch A is connected to switch B via the fourth network cable, and switch B is connected to switch C via the fourth network cable, forming a cascaded network topology. In some embodiments, grooves are created in the ground based on the shortest path between two switches to accommodate the fourth network cable, ensuring aesthetics while reducing the probability of cable damage and improving transmission speed. In other embodiments, the fourth network cable is a Cat5e shielded cable.

[0061] In this optional embodiment, a connection is established between multiple switches via a fourth network cable, enabling efficient transmission of video data from each machine tool's cutting tool, which is beneficial for unified monitoring. The fourth network cable is laid along the ground, simplifying operation, preserving aesthetics, and reducing the probability of cable damage.

[0062] Optionally, the tool status monitoring system further includes a power supply, and the switch, the video recorder and the display are respectively connected to the power supply. The display is located above the operating table, and the power supply, the switch and the video recorder are all located inside the operating table.

[0063] Specifically, the power supply provides power to the switch, video recorder, and monitor via cables, while the switch powers the cameras via a network cable. The power supply has sufficient output power to meet the power requirements of all devices in the tool condition monitoring system. It also provides stable output voltage and current to ensure the normal operation of all devices. The monitor is positioned above the control panel; for example, it can be connected to the control panel via a bracket, allowing the monitor to tilt 15° towards the control panel for easy observation of the tool status. Due to the ample internal space of the control panel, the power supply, switch, and video recorder can be housed within its interior.

[0064] In this optional embodiment, by centrally powering the switch, video recorder, and monitor, the tool condition monitoring system can operate continuously and stably. Positioning the monitor above the control panel allows operators to easily observe the tool status during machine tool operation. When tool wear or damage is detected, timely replacement is possible, effectively preventing a decline in workpiece quality and production efficiency due to tool issues. Centralizing the power supply, switch, and video recorder within the control panel not only makes efficient use of the space but also provides protection for these components and facilitates daily management. Furthermore, this arrangement brings the switch, video recorder, and monitor closer together, reducing signal attenuation and interference during video data transmission and improving the quality and efficiency of video data transmission.

[0065] Optionally, the camera is an optical 48x network PTZ camera, and the camera has built-in infrared and white light.

[0066] Specifically, the camera lens can adjust its focus within a certain range, allowing the cutting tool at the main processing position to be magnified 48 times while maintaining video clarity. The camera transmits video data to a switch via a network. The camera has a spherical shape and features pan-tilt-zoom functionality in both horizontal and vertical directions, enabling omnidirectional monitoring. Built-in infrared lights provide auxiliary illumination in nighttime or low-light conditions. The camera generates clear black-and-white video by emitting infrared light and receiving reflected infrared light. Built-in white light provides normal visible light illumination, enabling the camera to generate color video.

[0067] In this optional embodiment, the camera not only has pan-tilt-zoom functionality in both horizontal and vertical directions, but also features 48x optical zoom, enabling it to acquire tool video data from a distance at key machining locations for tool status monitoring. The camera incorporates infrared and white light to provide adequate illumination for different machining environments, ensuring clear tool video transmission to the switch. For example, the white light is activated during the day, and the infrared light at night, enabling all-weather tool status monitoring.

[0068] Optionally, the tool condition monitoring system further includes a force sensor, which is disposed on the tool post and / or the worktable of the machine tool, and is connected to the display.

[0069] Specifically, when a tool wears, its cutting edge becomes dull, increasing the cutting force required for machining the workpiece. When a tool is damaged, the cutting force required for machining the workpiece suddenly decreases. Therefore, a force sensor is installed on the tool post of machine tool 1 to measure the cutting force, and / or a force sensor is installed on the worktable of machine tool 1 to measure the reaction force of the cutting force. The force sensor transmits the acquired cutting force data to a display, allowing the operator to accurately determine the tool's condition by combining video data and cutting force data. For example, if the cutting force is less than a first preset value and the tool is not intact in the video, the tool is determined to be damaged, and a replacement operation is performed. If the cutting force is greater than a second preset value and the cutting edge of the tool is dull in the video, the tool is determined to be worn, and a replacement operation is performed.

[0070] In this optional embodiment, by setting up a force sensor, the magnitude of the cutting force of the tool during the machining process can be monitored in real time. Combined with video data, it is possible to more accurately determine whether the tool is worn or damaged. When the tool is worn or damaged, it can be replaced in a timely manner, avoiding a decline in workpiece quality and production efficiency.

[0071] This utility model provides a machine tool system, including the tool condition monitoring system and the machine tool as described above.

[0072] The beneficial effects of the machine tool system in this embodiment correspond to the beneficial effects of the tool condition monitoring system described above, and will not be repeated here.

[0073] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A tool condition monitoring system, applied to machine tools, characterized in that, include: The system includes a camera, a switch, a video recorder, and a monitor. The camera is connected to the switch, the switch is connected to the video recorder, and the video recorder is connected to the monitor. When multiple machine tools exist, the multiple switches corresponding to the multiple machine tools are connected; Each camera corresponding to the machine tool is set to a first position, a second position, and a third position of each machine tool; Wherein, the first position is the position for machining the inner hole, the second position is the position for machining the plane, and the third position is the position for machining the outer circle.

2. The tool condition monitoring system according to claim 1, characterized in that, The cameras include a first camera, a second camera, and a third camera. Each camera corresponding to a machine tool is configured to correspond to a first position, a second position, and a third position on each machine tool, including: The first camera corresponding to each of the machine tools is set to correspond to the second position and the third position of each of the machine tools; The second camera corresponding to each of the machine tools is set to correspond to the first position and the third position of each of the machine tools; The third camera corresponding to each machine tool is configured to correspond to the second position and the third position of each machine tool; The shooting direction of the first camera is different from that of the third camera.

3. The tool condition monitoring system according to claim 2, characterized in that, The switch is connected to the first camera via a first network cable, the switch is connected to the second camera via a second network cable, and the switch is connected to the third camera via a third network cable.

4. The tool condition monitoring system according to claim 3, characterized in that, The machine tool includes a base, a column, and a crossbeam. The column is located above the base. A base cable chain is provided on the side of the base. A junction box, a column cable chain, and the crossbeam are provided on the side of the column. The column cable chain is located above the junction box, and the crossbeam is located above the column cable chain. One end of the first network cable, one end of the second network cable, and one end of the third network cable are connected to the switch. The other end of the first network cable passes through the base cable chain, the junction box, and the column cable chain, and is connected to the first camera. The other ends of the second network cable and the third network cable both pass through the base cable chain, the junction box, and the column cable chain, and are split at the crossbeam position to connect to the second camera and the third camera respectively.

5. The tool condition monitoring system according to claim 4, characterized in that, A walkway is provided within a preset range of the machine tool. The first camera is mounted on the walkway, which is equipped with a support. The second camera is mounted on the support, and the third camera is mounted on the crossbeam.

6. The tool condition monitoring system according to claim 3, characterized in that, The multiple switches are connected to each other via a fourth network cable, which is laid along the ground.

7. The tool condition monitoring system according to claim 1, characterized in that, It also includes a power supply, and the switch, the video recorder and the display are respectively connected to the power supply. The display is set above the control panel, and the power supply, the switch and the video recorder are all set in the internal space of the control panel.

8. The tool condition monitoring system according to claim 1, characterized in that, The camera is a 48x optical zoom network PTZ camera, and it has built-in infrared and white light.

9. The tool condition monitoring system according to claim 1, characterized in that, It also includes a force sensor, which is disposed on the tool post and / or the worktable of the machine tool, and the force sensor is connected to the display.

10. A machine tool system, characterized in that, Includes the tool condition monitoring system and machine tool as described in any one of claims 1 to 9.

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