Machine tool protection device based on industrial internet

By adopting coordinated monitoring of infrared devices and cameras on the machine tool, combined with the remote alarm function of the Internet of Things module, the problem of traditional machine tools lacking intelligent protection is solved, real-time monitoring and safety protection of the machine tool working area is achieved, and operational safety is significantly improved.

CN222885957UActive Publication Date: 2025-05-20WENZHOU UNIV OUJIANG COLLEGE
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Patent Information

Application Number
CN202520690712.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2025-05-20
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Traditional machine tools lack intelligent protection systems, which makes operators easily accessible to dangerous areas and increase safety hazards.

Method used

A machine tool protection device based on the industrial Internet is designed, and infrared devices and cameras are used to jointly monitor the machine tool working area. When a person breaks in, the trigger alarm will issue an acoustic and optical warning, and an alarm signal will be sent to the remote monitoring terminal through the Internet of Things module.

Benefits of technology

Real-time dynamic monitoring and safety protection of the machine tool working area is realized, which significantly reduces the risk of safety accidents, improves the safety of machine tool operation, and improves the environmental adaptability and monitoring accuracy of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of machine tool safety protection, in particular to a machine tool protection device based on the industrial internet, which comprises a machine tool main body, and further comprises a shell, a machine tool protection device and an industrial internet, the mounting plate is fixed in the shell; the bracket is fixed on the mounting plate; the infrared device is rotationally mounted on the bracket through a first rotating shaft; the adjusting mechanism is arranged on the side wall of the bracket and is used for adjusting the angle of the infrared device; the camera is fixed on the machine tool main body and is used for monitoring a fixed machining area of the machine tool main body in real time; through cooperative work of the infrared device and the camera, the working area of the machine tool can be accurately monitored in real time, once it is detected that a person enters a dangerous area by mistake, the alarm is immediately triggered to give out an acousto-optic alarm, and alarm information is remotely transmitted to a monitoring end through the Internet of Things module; therefore, dynamic monitoring and safety protection of the working area of the machine tool are realized.
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Description

Technical Field

[0001] The utility model relates to the technical field of machine tool safety protection, in particular to a machine tool protection device based on the industrial Internet. Background Art

[0002] As a key device in modern industrial production, machine tools are widely used in the precision machining of metal parts. However, traditional machine tools often focus on machining efficiency and precision in design, while ignoring operation safety protection. Many traditional machine tools lack an effective intelligent protection system. In an open machining environment, operators or unauthorized personnel can easily approach the dangerous areas of the machine tool, such as rotating parts and cutting areas. Due to the lack of real-time monitoring and warning mechanisms, once people accidentally enter these dangerous areas, accidents such as mechanical collisions, cutting fluid splashing, or tool flying off are extremely likely to occur, causing personal injuries or even more serious consequences. Especially in the operation of manual and semi-automatic machine tools, the uncertainty of human factors further exacerbates the safety hazards. In addition, traditional machine tool safety protection measures, such as physical fences, although can isolate dangerous areas to a certain extent, at the same time limit the flexibility and convenience of operation, and cannot achieve real-time dynamic monitoring and alarming. In view of the above problems, the existing technology urgently needs to be improved. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the technical problem that the existing machine tools lack an intelligent protection system and are prone to safety hazards, and to propose a machine tool protection device based on the industrial Internet.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a machine tool protection device based on the industrial Internet, including a machine tool main body, and further including:

[0005] A housing, installed on the side wall of the machine tool main body;

[0006] A mounting plate, fixed inside the housing;

[0007] A bracket, fixed on the mounting plate;

[0008] An infrared device, rotatably installed on the bracket through a first rotating shaft;

[0009] An adjusting mechanism, arranged on the side wall of the bracket, for adjusting the angle of the infrared device;

[0010] A camera, fixed on the machine tool main body, for real-time monitoring of the fixed machining area of the machine tool main body;

[0011] An alarm, fixed on the machine tool main body;

[0012] The Internet of Things module is fixed on the mounting plate and is used to send alarm signals to the remote monitoring terminal.

[0013] Among them, the infrared device and the camera are used to monitor the fixed processing area of the machine tool body in real time. When a person is detected breaking in, the alarm is triggered to emit a sound and light warning and send an alarm signal to the remote monitoring terminal through the Internet of Things module.

[0014] Preferably, the bracket includes two inclined support rods. The upper ends of the two support rods are rotatably connected to the first rotating shaft of the infrared device, and the lower ends of the two support rods are fixed on the mounting plate. An installation space for installing the infrared device is formed between the two support rods.

[0015] Preferably, the limiting mechanism includes:

[0016] A convex block is fixed on the side wall of the bracket. The inside of the convex block is hollow. One end of the first rotating shaft rotates and extends into the hollow shell of the convex block and is fixedly connected with a gear.

[0017] A movable rod is rotatably connected to the inner wall of the convex block through a second rotating shaft. A clamping block is arranged at the end of the movable rod, and the clamping block is used for clamping with the gear.

[0018] A release button is arranged at one end of the movable rod away from the clamping block. The release button is slidably connected with the convex block, and one end of the release button penetrates and extends into the convex block.

[0019] A second spring has one end abutted against the clamping block and the other end abutted against the inner wall of the convex block, and is used to drive the clamping block to snap into the tooth groove of the gear.

[0020] Preferably, a first spring is arranged on the release button. One end of the first spring abuts against the release button, and the other end abuts against the movable rod, and is used to drive the release button to reset.

[0021] Preferably, the gear is an external gear. The clamping block includes teeth meshing with the gear. The second spring drives the teeth of the clamping block to snap into the tooth groove of the gear to realize the locking of the rotation angle of the gear.

[0022] Preferably, the movable rod has an L-shaped structure.

[0023] Preferably, the camera is a wide-angle camera.

[0024] Preferably, the alarm includes a sound alarm and a light alarm. The sound alarm is used to emit a sound warning, and the light alarm is used to emit a light signal warning.

[0025] Preferably, the Internet of Things module is a Wi-Fi module or a GPRS module to realize the wireless remote transmission of alarm information.

[0026] Compared with the prior art, the utility model has the following beneficial effects: By setting the infrared device and the camera to work together, the working area of the machine tool can be monitored in real time and accurately. Once a person is detected to enter the dangerous area, the alarm will be immediately triggered to emit sound and light warnings, and the alarm information will be remotely transmitted to the monitoring end through the Internet of Things module, so as to realize the dynamic monitoring and safety protection of the working area of the machine tool. Compared with the traditional machine tool protection technology, the machine tool protection device of the utility model can effectively prevent people from entering the dangerous area of the machine tool, significantly reduce the risk of safety accidents, and improve the safety of machine tool operation. In addition, the utility model also has an infrared device with adjustable angle, which can flexibly adjust the monitoring range according to the actual application scenario, improving the environmental adaptability and monitoring accuracy of the device. The addition of the Internet of Things module enables the alarm information to be remotely transmitted, facilitating the manager to timely grasp the on-site situation and take corresponding measures, further improving the intelligent level of machine tool safety management. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the connection situation between the mounting plate and the Internet of Things module of the utility model;

[0029] Figure 3 It is a schematic diagram of the installation situation of the infrared device of the utility model;

[0030] Figure 4 It is a schematic diagram of the meshing situation between the clamping block and the gear of the utility model.

[0031] In the figure: 1, machine tool main body; 2, camera; 3, alarm; 4, housing; 5, mounting plate; 6, Internet of Things module; 7, bracket; 8, convex block; 9, infrared device; 10, release button; 11, movable rod; 12, clamping block; 13, gear; 14, first rotating shaft; 15, first spring; 16, second spring; 17, second rotating shaft. Detailed Embodiment

[0032] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. With the rapid development of industrial automation and information technology, industrial Internet technology has gradually penetrated into various industrial fields. In the traditional machine tool processing field, although the processing efficiency and accuracy of machine tools have been continuously improved, the operation safety problem has become increasingly prominent. Especially in the man-machine collaborative working environment, how to effectively ensure the safety of operators has become a key problem to be solved urgently. Traditional machine tool safety protection measures, such as mechanical fences and safety gratings, although reduce the safety risks to a certain extent, have defects such as complex deployment, poor flexibility, and inability to conduct real-time monitoring, and it is difficult to meet the requirements of modern industrial production for intelligent and flexible safety protection. Therefore, designing an intelligent machine tool protection device that can real-time monitor the working area of the machine tool, timely warn of potential safety risks, and can remotely transmit alarm information is of great significance for improving the operation safety of the machine tool and reducing the incidence of safety accidents. The present utility model is precisely proposed under such a background, aiming to provide a machine tool protection device based on the industrial Internet to solve the deficiencies existing in the prior art.

[0033] To more clearly understand the technical solution of the present utility model, first, the key terms involved in the present utility model are explained. Among them, the machine tool main body 1 refers to the machine tool equipment that is the processing object, such as a numerically controlled lathe, milling machine, drilling machine, etc. The infrared device 9 and the camera 2 are both sensors, used to collect image information and infrared thermal information of the machine tool working area, so as to judge whether there is a person entering the dangerous area. The alarm 3 can be an audible and visual alarm, used to emit an audible and visual warning signal when a dangerous situation is detected to remind the on-site personnel to pay attention to safety. The Internet of Things module 6 can be, for example, a Wi-Fi module or a GPRS module, used to realize the wireless communication between the device and the remote monitoring center, and upload the alarm information and device status data to the cloud platform. Structural components such as the housing 4, the mounting plate 5, and the bracket 7 are used to support and fix the core components such as the infrared device 9, the camera 2, and the Internet of Things module 6, and realize functions such as angle adjustment and installation positioning. The machine tool protection device of the present utility model can be applied to various types of machine tool equipment, especially suitable for the safety protection of machine tools in an open processing environment.

[0034] As Figures 1 to 4 shown, a machine tool protection device based on the industrial Internet includes a machine tool main body 1, and further includes:

[0035] A housing 4, installed on the side wall of the machine tool main body 1;

[0036] A mounting plate 5, fixed inside the housing 4;

[0037] A bracket 7, fixed on the mounting plate 5;

[0038] An infrared device 9 is rotatably mounted on a bracket 7 through a first rotating shaft 14;

[0039] An adjusting mechanism is arranged on the side wall of the bracket 7 and is used for adjusting the angle of the infrared device 9;

[0040] A camera 2 is fixed on the machine tool main body 1 and is used for real-time monitoring of a fixed processing area of the machine tool main body 1;

[0041] An alarm 3 is fixed on the machine tool main body 1;

[0042] An Internet of Things module 6 is fixed on a mounting plate 5 and is used for sending an alarm signal to a remote monitoring end,

[0043] Among them, the infrared device 9 and the camera 2 are used for real-time monitoring of a fixed processing area of the machine tool main body 1. When a person is detected to break in, the alarm 3 is triggered to emit a sound and light warning and send an alarm signal to the remote monitoring end through the Internet of Things module 6.

[0044] Compared with traditional machine tool safety protection devices, the biggest feature of the machine tool protection device of the present utility model is the adoption of a monitoring method combining the infrared device 9 and the camera 2, as well as the remote alarm function of the Internet of Things module 6. Traditional machine tool safety protection devices, such as safety fences, can only achieve physical isolation and cannot perform real-time monitoring and early warning. However, the device of the present utility model can effectively detect the intrusion behavior of personnel by real-time monitoring of a fixed processing area of the machine tool main body 1 through the infrared device 9 and the camera 2. Once a person is detected to break in, the device will immediately trigger the alarm 3 to emit a sound and light warning to remind the on-site personnel to pay attention to safety. At the same time, the alarm information will also be uploaded to the remote monitoring end through the Internet of Things module 6, such as the mobile phone APP of workshop management personnel or the control platform of the monitoring center, so that the management personnel can timely understand the on-site situation and take corresponding disposal measures. This real-time and remote alarm mechanism greatly improves the response speed and management efficiency of machine tool safety protection.

[0045] Furthermore, the machine tool protection device of the present utility model also has an infrared device 9 with an adjustable angle. By setting the adjusting mechanism, the monitoring angle of the infrared device 9 can be conveniently adjusted to adapt to different machine tool types and processing scenarios. For example, for a large machine tool, the monitoring angle of the infrared device 9 can be adjusted to be larger to cover a larger working area; for a small machine tool, the monitoring angle of the infrared device 9 can be adjusted to be smaller to avoid false alarms. The function of adjustable angle makes the machine tool protection device of the present utility model have stronger environmental adaptability and application flexibility.

[0046] In summary, the machine tool protection device based on the industrial Internet provided by the present utility model constructs an intelligent and multi-level machine tool safety protection system through the collaborative monitoring of the infrared device 9 and the camera 2, the sound and light warning of the alarm 3, and the remote alarm function of the Internet of Things module 6. This device can not only effectively solve the problem of insufficient machine tool safety protection measures in the prior art, but also has the advantages of simple structure, convenient deployment, low cost, etc., and has broad market application prospects.

[0047] As an implementation manner of the present utility model, the bracket 7 includes two inclined support rods. The upper ends of the two support rods are rotatably connected to the first rotating shaft 14 of the infrared device 9, and the lower ends of the two support rods are fixed on the mounting plate 5. An installation space for installing the infrared device 9 is formed between the two support rods.

[0048] As an implementation manner of the present utility model, the limiting mechanism includes:

[0049] A convex block 8, fixed on the side wall of the bracket 7. The inside of the convex block 8 is hollow. One end of the first rotating shaft 14 rotates and extends into the hollow shell inside the convex block 8 and is fixedly connected with a gear 13;

[0050] A movable rod 11, rotatably connected to the inner wall of the convex block 8 through a second rotating shaft 17. A clamping block 12 is arranged at the end of the movable rod 11, and the clamping block 12 is used for clamping with the gear 13;

[0051] A release button 10, arranged at the end of the movable rod 11 away from the clamping block 12. The release button 10 is slidably connected with the convex block 8, and one end of the release button 10 penetrates and extends into the inside of the convex block 8;

[0052] A second spring 16, with one end abutted against the clamping block 12 and the other end abutted against the inner wall of the convex block 8, is used to drive the clamping block 12 to snap into the tooth groove of the gear 13.

[0053] Specifically, the movable rod 11 is rotatably mounted on the inner wall of the convex block 8 through the second rotating shaft 17. The structure of the movable rod 11 can be designed in an L shape or other suitable shapes to achieve a lever effect. At one end of the movable rod 11, a clamping block 12 is provided. The shape and size of the clamping block 12 are adapted to the tooth grooves of the gear 13 for meshing or separating from the gear 13, so as to lock and unlock the rotation angle of the infrared device 9. The release button 10 is arranged at the end of the movable rod 11 away from the clamping block 12, and the release button 10 is slidably connected to the convex block 8, so that the release button 10 can slide along the wall surface of the convex block 8. A part of the structure of the release button 10 extends through the convex block 8 and is connected to the movable rod 11. When the operator presses the release button 10, the movable rod 11 can be driven to rotate around the second rotating shaft 17, and then the clamping block 12 is driven to disengage from the gear 13. The second spring 16 is cleverly arranged between the clamping block 12 and the inner wall of the convex block 8. The second spring 16 is always in a compressed state and continuously applies an elastic force to the clamping block 12 to drive the clamping block 12 to tend to engage with the tooth grooves of the gear 13, so as to realize automatic angle locking.

[0054] It can be seen that the limiting mechanism provides an installation base through the convex block 8, the gear 13 and the clamping block 12 realize angle locking, the movable rod 11 and the release button 10 realize the unlocking operation, and the second spring 16 provides the locking force. Each component cooperates with each other to form an angle adjustment and locking mechanism with a compact structure, convenient operation and reliable locking. Compared with simple friction locking or bolt locking methods, the clamping lock mechanism with gear tooth groove cooperation adopted in this embodiment can provide higher angle positioning accuracy and locking reliability, ensure that the infrared device 9 will not have accidental angle deviation during operation, and thus ensure the accuracy and stability of monitoring.

[0055] As an implementation manner of the present utility model, a first spring 15 is arranged on the release button 10. One end of the first spring 15 abuts against the release button 10, and the other end abuts against the movable rod 11 for driving the release button 10 to reset.

[0056] Specifically, when the operator presses the release button 10 to adjust the angle of the infrared device 9, it is necessary to overcome the elastic force of the first spring 15, causing the release button 10 to slide inward into the bump 8, and further driving the latch 12 to disengage from the gear 13 through the movable rod 11. Once the operator releases the release button 10, the restoring force generated by the first spring 15 will immediately push the release button 10 back to its initial position. At the same time, the movable rod 11 and the latch 12 connected to the release button 10 will also be reset. Under the action of the second spring 16, the latch 12 will re-engage into the tooth groove of the gear 13, thus realizing the automatic locking of the angle of the infrared device 9. As an alternative, the first spring 15 can also be a tension spring, with its two ends respectively connected to the release button 10 and the movable rod 11, which can also achieve the automatic reset function of the release button 10. The material of the first spring 15 can be selected from elastic materials such as spring steel or stainless steel to ensure its good elasticity and durability.

[0057] As an embodiment of the present utility model, the gear 13 is an external gear, and the latch 12 includes teeth that mesh with the gear 13. The second spring 16 drives the teeth of the latch 12 to engage into the tooth groove of the gear 13 to lock the rotation angle of the gear 13.

[0058] To achieve the accuracy and reliability of the angle locking of the infrared device 9, the present utility model optimizes the structures of the gear 13 and the latch 12. Specifically, the gear 13 is designed as an external gear, that is, a gear with teeth distributed on the outer circumference of the gear. The external gear has the advantages of simple structure, convenient processing, high transmission efficiency, etc., and is suitable for the application scenario of angle locking in the present utility model. The latch 12 is designed to have a structure including teeth that mesh with the gear 13. The teeth on the latch 12 are adapted to the external teeth of the gear 13 and can accurately engage into the tooth groove of the gear 13 to achieve precise angle positioning and reliable locking.

[0059] As an embodiment of the present utility model, the movable rod 11 has an L-shaped structure.

[0060] As an embodiment of the present utility model, the camera 2 is a wide-angle camera.

[0061] To expand the monitoring visual field range of the machine tool protection device and reduce the monitoring blind area, the present utility model preferably uses a wide-angle camera as the camera 2. A wide-angle camera refers to a camera with a wider viewing angle than an ordinary camera. Compared with traditional cameras, a wide-angle camera can capture a larger range of image information at the same installation position, thus effectively expanding the monitoring area, reducing the visual blind area, and improving the comprehensiveness and effectiveness of monitoring.

[0062] As an implementation manner of the present utility model, the alarm 3 includes an audible alarm and a visual alarm. The audible alarm is used to give an audible warning, and the visual alarm is used to give a visual signal warning.

[0063] In order to achieve a more effective alarm prompt effect and improve the warning intensity and coverage of dangerous situations, the present utility model preferably designs the alarm 3 in a combined form including an audible alarm and a visual alarm. The audible alarm and the visual alarm work together to simultaneously give warning signals from both the auditory and visual dimensions, thereby more effectively reminding the on-site personnel to pay attention to safety and take corresponding risk avoidance measures.

[0064] As an implementation manner of the present utility model, the Internet of Things module 6 is a Wi-Fi module or a GPRS module to achieve wireless remote transmission of alarm information.

[0065] In order to achieve remote real-time transmission of alarm information and facilitate the manager to timely grasp the on-site situation and take corresponding measures, the present utility model preferably uses a Wi-Fi module or a GPRS module as the Internet of Things module 6. Both the Wi-Fi module and the GPRS module are mature wireless communication technologies, which can realize wireless data transmission between the device and the remote monitoring center. Using the Wi-Fi module or the GPRS module enables the machine tool protection device of the present utility model to be conveniently connected to the industrial Internet to achieve intelligent management and remote monitoring.

[0066] The working principle of the present utility model:

[0067] The fixed processing area of the machine tool main body 1 is monitored in real time by the infrared device 9 and the camera 2. When a person is detected breaking in, the alarm 3 is triggered to give an audible and visual warning and an alarm signal is sent to the remote monitoring end through the Internet of Things module 6. Among them, the infrared device 9 is fixed on the mounting plate 5 through the bracket 7. The mounting plate 5 and the housing 4 together form a protection structure and are installed at a specific position of the machine tool main body 1. When the monitoring angle of the infrared device 9 needs to be adjusted, the operator presses the release button 10 to make the movable rod 11 rotate around the second rotating shaft 17, and the end thereof drives the clamping block 12 to disengage from the locked state of the gear 13. At this time, the infrared device 9 can rotate around the first rotating shaft 14 to the target angle. After releasing the release button 10, the second spring 16 pushes the clamping block 12 to re-engage into the tooth groove of the gear 13 to fix the angle. At the same time, the first spring 15 ensures that the release button 10 automatically resets. The whole monitoring assembly realizes precise positioning through the cooperation of the convex block 8 and the mounting plate 5. The linkage mechanism of the movable rod 11 and the clamping block 12 forms a stable lever structure through the first rotating shaft 14 and the second rotating shaft 17 to ensure the smooth and reliable angle adjustment process, and finally forms an all-round dynamic protection system for the machine tool working area.

[0068] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, there will be various changes and improvements to the present utility model, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A machine tool protection device based on the industrial Internet, comprising a machine tool body (1), characterized in that: Also includes: A housing (4) mounted on a side wall of the machine tool body (1); A mounting plate (5) fixed inside the housing (4); A bracket (7) fixed on the mounting plate (5); An infrared device (9) is rotatably mounted on the bracket (7) via a first rotating shaft (14); An adjustment mechanism, disposed on a side wall of the bracket (7) and used to adjust the angle of the infrared device (9); A camera (2) is fixed on the machine tool body (1) and is used to monitor a fixed processing area of ​​the machine tool body (1) in real time; An alarm (3) fixed on the machine tool body (1); The Internet of Things module (6) is fixed on the mounting plate (5) and is used to send an alarm signal to a remote monitoring terminal. The infrared device (9) and the camera (2) are used to monitor the fixed processing area of ​​the machine tool body (1) in real time. When a person intrudes, the alarm (3) is triggered to emit an audible and visual warning and send an alarm signal to a remote monitoring terminal via the Internet of Things module (6).

2. According to the industrial Internet-based machine tool protection device of claim 1, it is characterized in that: The bracket (7) comprises two support rods arranged obliquely, the upper ends of the two support rods being rotatably connected to the first rotating shaft (14) of the infrared device (9), the lower ends of the two support rods being fixed to the mounting plate (5), and an installation space for installing the infrared device (9) being formed between the two support rods.

3. According to claim 1, a machine tool protection device based on industrial Internet is characterized in that: The limiting mechanism comprises: A convex block (8) is fixed on the side wall of the bracket (7); the interior of the convex block (8) is hollow; one end of the first rotating shaft (14) rotates and extends into the hollow shell of the convex block (8) and is fixedly connected to a gear (13); A movable rod (11) is rotatably connected to the inner wall of the protrusion (8) via a second rotating shaft (17); a clamping block (12) is provided at the end of the movable rod (11); the clamping block (12) is used to be clamped with the gear (13); A release button (10) is arranged at one end of the movable rod (11) away from the block (12), the release button (10) is slidably connected to the protrusion (8), and one end of the release button (10) extends through and into the interior of the protrusion (8); A second spring (16) has one end abutting against the clamping block (12) and the other end abutting against the inner wall of the protrusion (8), and is used to drive the clamping block (12) to engage in the tooth groove of the gear (13).

4. The machine tool protection device based on industrial Internet according to claim 3 is characterized in that: The release button (10) is provided with a first spring (15), one end of the first spring (15) abuts against the release button (10), and the other end of the first spring (15) abuts against the movable rod (11), and is used for driving the release button (10) to reset.

5. The machine tool protection device based on industrial Internet according to claim 3 is characterized in that: The gear (13) is an external gear, the clamping block (12) comprises teeth meshing with the gear (13), and the second spring (16) drives the teeth of the clamping block (12) to engage in tooth grooves of the gear (13), thereby locking the rotation angle of the gear (13).

6. The machine tool protection device based on industrial Internet according to claim 3 is characterized in that: The movable rod (11) is in an L-shaped structure.

7. A machine tool protection device based on industrial Internet according to any one of claims 1 to 6, characterized in that: The camera (2) is a wide-angle camera.

8. A machine tool protection device based on industrial Internet according to any one of claims 1 to 6, characterized in that: The alarm (3) comprises an acoustic alarm and a light alarm, the acoustic alarm is used to emit a sound warning, and the light alarm is used to emit a light signal warning.

9. A machine tool protection device based on industrial Internet according to any one of claims 1 to 6, characterized in that: The Internet of Things module (6) is a Wi-Fi module or a GPRS module to achieve wireless remote transmission of alarm information.