Intelligent numerical control machine tool with detection and alarm functions

Abstract

The invention discloses an intelligent numerical control machine tool with detection and alarm functions, and belongs to the technical field of numerical control machine tools. The visual identification module is arranged on a front push door of the numerical control machine tool assembly and is used for detecting and identifying a door opener; the interception entering alarm module is arranged in an inner cavity of the numerical control machine tool assembly and used for detecting violation operation of a door opener and conducting alarm and physical interception at the same time; and the operation safety people number detection module is connected to the control module in the numerical control machine tool assembly through wired or wireless transmission, and is used for detecting the field maintenance safety people number so as to judge and control the safety opening and closing of the interception entering the alarm module. According to the invention, identity verification and behavior supervision of an operator are enhanced, physical interception and alarm are introduced, and the safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of numerical control machine tools, in particular to an intelligent numerical control machine tool with detection and alarm functions. Background Art

[0002] With the continuous improvement of industrial automation level, CNC machine tools are more and more widely used in manufacturing. However, since CNC machine tools usually involve high-speed rotating tools, complex mechanical structures and potential high-voltage electrical environments, safety issues during operation and maintenance have always been the focus of industry attention. Although existing CNC machine tools are equipped with some basic safety measures, such as emergency stop buttons and protective covers, these measures are often not comprehensive enough and have the following major shortcomings.

[0003] When illegal operations occur, existing systems can usually only alert operators through sound and light alarms, but lack effective physical interception methods to prevent further dangerous actions. This may result in the inability to quickly isolate dangerous areas in an emergency, increasing the possibility of accidents.

[0004] After searching, the existing Chinese patent publication number is: CN114535720B. A CNC machine tool includes a bed, a main chuck arranged on the bed, and a sub-chuck slidably arranged on the bed. The bed is provided with a cutting mechanism for cutting a workpiece, and the bed is also provided with a pushing component for pushing the sub-chuck to move. A mounting groove for accommodating the workpiece is opened in the main chuck, and a positioning column extending into the interior of the workpiece is provided in the sub-chuck, and the positioning column corresponds to the mounting groove.

[0005] The cited patent documents also have the same problem. When illegal operations occur, the existing systems can usually only alert the operator through sound and light alarms, but lack effective physical interception means to prevent further dangerous actions. This may lead to the inability to quickly isolate the dangerous area in an emergency, increasing the possibility of accidents. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent numerically controlled machine tool with a detection and alarm function to solve the problems raised in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an intelligent CNC machine tool with detection and alarm function, comprising: A CNC machine tool assembly; the CNC machine tool assembly comprises a machine tool base and a machine tool outer cover shell installed on the top surface of the machine tool base; a control panel is embedded in the front surface of the machine tool outer cover shell, and a control module is arranged in the control panel; A visual recognition module is provided on the front sliding door of the CNC machine tool assembly and is used to detect and identify the person who opens the door; An interception entry alarm module is arranged in the inner cavity of the CNC machine tool assembly and is used to detect illegal operations of the door opener and simultaneously issue an alarm and physically intercept; The module for detecting the number of safe operators is connected to the control module in the CNC machine tool assembly through wired or wireless transmission, and the module for detecting the number of safe operators is used to detect the number of safe operators for on-site maintenance so as to determine the safety opening and closing of the control interception alarm module.

[0008] In this solution, the visual recognition module includes a fingerprint recognition unit arranged on the surface of the door handle of the front push door, a facial recognition unit arranged on the surface of the front push door, and a visual recognition CCD camera arranged on the surface of the front push door. The control module has a personnel library that allows the operation of the equipment. When the door opener is the direct person in charge of the equipment, the fingerprint recognition unit and the facial recognition unit detect and determine through the control module that the person is the direct person in charge in the personnel library. At the same time, the visual recognition CCD camera is used to identify whether the door opener is wearing goggles on his face. If the goggles are worn, the electric lock inside the front push door is opened. If the goggles are not worn or it is detected that the person is not the direct person in charge, the electric lock of the front push door cannot be opened. In addition, when someone who is not the direct person in charge of the equipment but is other personnel in the personnel database (such as the person in charge or other colleagues who have been trained and formally taken up the post to replace the direct person in charge) operates the equipment, the emergency close button can be pressed, and the emergency close button signal is transmitted to the control module. At the same time, the visual recognition CCD camera is used to identify whether the person opening the door is wearing goggles on his face. If he is wearing goggles, the control module controls the electric lock to open the front push door. If he is not other personnel in the personnel database or is not wearing goggles, the control module controls the electric lock not to open the front push door.

[0009] In this solution, the visual recognition CCD camera is arranged above the facial recognition unit and located on the surface of the same front push door, and an emergency closing button is arranged on one side of the facial recognition unit and located on the surface of the front push door; The visual recognition CCD camera is used to detect whether the door opener wears goggles on his face. The fingerprint recognition unit, the face recognition unit, the emergency close button and the visual recognition CCD camera are respectively connected to the control module.

[0010] In this solution, the interception entry alarm module is preferably provided with an infrared detector on the inner wall of the CNC machine tool assembly and a pressure safety monitoring station provided behind the front push door and located inside the CNC machine tool assembly. The infrared detector is used to detect the safe distance of the door opener's body protruding into the inner cavity of the CNC machine tool assembly, and the control module controls the alarm light on the top of the CNC machine tool assembly to turn on and off the alarm. When the infrared detector detects that the door opener's body has protruded into the inner cavity of the CNC machine tool assembly, the infrared detector transmits a signal to the control module. When the control module determines that the door opener's body has protruded into the inner cavity of the CNC machine tool assembly beyond a preset safe distance, the control module controls the alarm light to turn on for flashing alarm and buzzing alarm reminder. At the same time, the control module controls the floor scale to detect the number of safe operators. When the floor scale detects that a safety observer is standing on it, it sends a signal to the control module, so that the control module determines that there is a safety observer on the scene in addition to the maintenance personnel entering the inner cavity of the CNC machine tool assembly. At this time, the control module will not open the electric lifting column, so that the safety interception net is still in the initial position, and the alarm light is turned off synchronously. The safety observer can observe the situation on the scene to prevent other personnel from suddenly appearing and suddenly starting the CNC machine tool assembly without knowing it, thereby improving the safety of the maintenance personnel and preventing accidents. When the control module controls to detect that there is no safety observer standing on the floor scale, the control module controls to open the electric lifting column, so that the electric lifting column drives the safety interception net to descend into the inner cavity of the CNC machine tool assembly and is located in front of the tool, which is used to intercept the body of the maintenance personnel from continuing to probe into the inner cavity of the CNC machine tool assembly, until the floor scale detects that there is a safety observer standing, the control module controls the electric lifting column to drive the safety interception net to rise to the initial position, and the alarm light is turned off synchronously, and the maintenance personnel are allowed to probe into the inner cavity of the CNC machine tool assembly for maintenance.

[0011] Preferably, the pressure safety monitoring station is located at the lower part of the inner cavity of the CNC machine tool assembly and is used to detect when the door opener steps into the inner cavity of the CNC machine tool assembly, thereby controlling the two-way warning component and safety interception component in the inner cavity of the CNC machine tool assembly through the control module to perform physical warning and physical interception.

[0012] In this solution, the module for detecting the number of safe operators includes a weighbridge well embedded in the ground in front of the CNC machine tool assembly, a weighbridge member embedded in the weighbridge well, and a detachable manhole cover covering the top of the weighbridge well; The floor scale is connected to the control module via a cable.

[0013] Preferably, a monitoring support platform is fixedly installed below the pressure safety monitoring platform and at the lower part of the inner cavity of the CNC machine tool assembly, an elastic downward pressing reset component is arranged between the monitoring support platform and the pressure safety monitoring platform, a double-headed screw is horizontally penetrated and connected inside the monitoring support platform, and the pressure safety monitoring platform drives the double-headed screw to rotate in the monitoring support platform through a gear rack transmission member; Both ends of the double-headed screw are provided with external threaded paths with opposite thread directions, and the peripheral sides of the two external threaded paths are threadedly connected with sliders, and an L-moving column is fixed on the top of each slider, and a warning metal bell is provided on the top of the two L-moving columns; The two warning metal bells are arranged on the symmetrical sides of the front push door. When the door opener steps on the pressure safety monitoring platform and enters the CNC machine tool assembly, the pressure safety monitoring platform drives the double-headed screw to rotate through the gear rack transmission member, so that the two L-shaped moving columns move centripetally, and the two warning metal bells ring at the ears of the door opener on both sides. The warning metal bell is a physical warning.

[0014] Preferably, a pressure sensor is provided between the monitoring support platform and the pressure safety monitoring platform, the pressure sensor is connected to the control module, and the safety interception component comprises a U-shaped bracket fixed to the top of the inner cavity of the CNC machine tool assembly, an electric lifting column fixed to the inner top wall of the U-shaped bracket, and a safety interception net fixed to the bottom lifting end of the electric lifting column.

[0015] Preferably, the four corners of the top surface of the pressure safety monitoring platform are provided with first positioning holes, and the elastic downward pressure reset component includes a first positioning rod welded at the four corners of the bottom surface of the pressure safety monitoring platform and a first spring sleeved on each first positioning rod, the first positioning rod is inserted into the first positioning hole, and the top end of the first spring is fixed to the bottom surface of the pressure safety monitoring platform.

[0016] Preferably, in the present solution, a second positioning hole is further provided on the top surface of the monitoring support platform, a second positioning rod is inserted into the second positioning hole, a second spring is sleeved around the second positioning rod, a top cover is welded to the top end of the second positioning rod and above the second spring, and the pressure sensor is installed on the top surface of the top cover.

[0017] Compared with the prior art, the technical effects and advantages of the present invention are as follows: This intelligent CNC machine tool with detection and alarm function integrates the CNC machine tool assembly with multiple security functions (such as identity authentication, physical interception, number monitoring, etc.) to form a highly integrated security management system. By combining biometric recognition, physical interception and real-time monitoring and other means, it provides comprehensive protection measures from access authority control to internal activity supervision, significantly improving the overall security level.

[0018] Multi-layer biometric authentication is performed through fingerprint recognition unit, facial recognition unit and visual recognition CCD camera to ensure that only authorized personnel can enter the inner cavity of CNC machine tools. This multi-level identity authentication mechanism greatly improves security and prevents unauthorized personnel from operating equipment without authorization. Infrared detectors can monitor the location of personnel in real time and immediately trigger alarm lights when abnormal conditions are detected, thereby alerting on-site personnel in time to avoid potential dangers.

[0019] The interception entry alarm module can not only sound and light alarms, but also drive the safety interception net down through the electric lifting column, physically preventing unauthorized or non-compliant personnel from further entering the danger zone. This provides an active protection mechanism instead of relying solely on manual intervention.

[0020] The module for checking the number of people on duty uses a floor scale to verify whether there are enough safety observers on site, ensuring that there is always someone supervising the maintenance process, thereby reducing the risk of accidents caused by negligence.

[0021] The technical solution comprehensively upgrades the security of traditional CNC machine tools, not only strengthening the identity authentication and behavior supervision of operators, but also introducing physical interception and intelligent detection, greatly enhancing the safety, efficiency and reliability of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the visual recognition module of the present invention; Figure 3 It is a structural schematic diagram of the floor scale component of the present invention; Figure 4 It is a schematic diagram of the installation structure of the two-way warning component of the present invention; Figure 5 A schematic diagram of the connection structure of the safety interception net of the present invention; Figure 6 It is a schematic diagram of the connection structure of the monitoring support platform of the present invention; Figure 7 It is a schematic diagram of the installation structure of the pressure sensor of the present invention; Figure 8 It is a schematic structural diagram of the slider member of the present invention.

[0024] Description of reference numerals: In the figure: 1. CNC machine tool assembly; 2. Machine tool base; 3. Machine tool outer cover; 4. Warning light; 5. Control panel; 6. Cables; 7. Weighbridge well; 8. Front push door; 9. Visual recognition module; 10. Safety interception component; 11. Control module; 12. Door handle; 13. Fingerprint recognition unit; 14. Facial recognition unit; 15. Emergency shutdown button; 16. Visual recognition CCD camera; 17. Floor scale; 18. Manhole cover; 19. Crossbeam; 20. Pressure safety monitoring station; 21. Infrared detector; 22. Two-way warning assembly; 23. Rectangular opening; 24. U-shaped bracket; 25. Electric lifting column; 26. Safety interception net; 27. Monitoring support platform; 28. First positioning socket; 29. ​​First positioning plug rod; 30. First spring; 31. Through cavity; 32. Rack; 33. Gear; 34. Double-headed screw; 35. L support plate; 36. Sliding block; 37. External threaded path; 38. Second positioning jack; 39. Second spring; 40. L movable column; 41. Warning metal bell; 42. Sealed bearing; 43. Second positioning rod; 44. Top cover; 45. Pressure sensor; 46. Steel ball; 47. Internal threaded hole; 48. Intercept entry alarm module; 49. Module for detecting the number of safe operators; 50. Security officer facial recognition lens. DETAILED DESCRIPTION

[0025] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0026] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this document are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present invention, and are explained here together.

[0027] This embodiment provides Figures 1 to 8 The intelligent CNC machine tool with detection and alarm functions shown includes: a CNC machine tool assembly 1, a visual recognition module 9, an interception entry alarm module 48, and a module 49 for detecting the number of safe operators.

[0028] In this embodiment, the CNC machine tool assembly 1 includes a machine tool base 2 and a machine tool outer cover shell 3 installed on the top surface of the machine tool base 2; a control panel 5 is embedded in the front surface of the machine tool outer cover shell 3, and a control module 11 is arranged in the control panel 5.

[0029] In this embodiment, the visual recognition module 9 is arranged on the front sliding door 8 of the CNC machine tool assembly 1 and is used to detect and identify the door opener; the visual recognition module 9 verifies the identity of the door opener and whether he is wearing goggles through the fingerprint recognition unit 13, the face recognition unit 14 and the visual recognition CCD camera 16 to ensure that only authorized personnel who meet the security requirements can enter.

[0030] In this embodiment, the interception entry alarm module 48 is arranged in the inner cavity of the CNC machine tool assembly 1 and is used to detect the illegal operation of the door opener and simultaneously issue an alarm and perform physical interception.

[0031] In this embodiment, the module 49 for detecting the number of safe operators is connected to the control module 11 in the CNC machine tool assembly 1 through wired or wireless transmission, and the module 49 for detecting the number of safe operators is used to detect the number of safe operators for on-site maintenance so as to determine the safety opening and closing of the control interception entry alarm module 48. The control module 11 is a PLC.

[0032] In this embodiment, the visual recognition module 9 includes a fingerprint recognition unit 13 disposed on the surface of the door handle 12 of the front push door 8, a facial recognition unit 14 disposed on the surface of the front push door 8, and a visual recognition CCD camera 16 disposed on the surface of the front push door 8. A personnel library that is allowed to operate the equipment is provided in the control module 11. When the door opener is the direct person in charge of the equipment, the fingerprint recognition unit 13 and the facial recognition unit 14 detect and determine through the control module 11 that the person is the direct person in charge in the personnel library. At the same time, the visual recognition CCD camera 16 is used to identify and detect whether the door opener is wearing goggles on his face. If the goggles are worn, the electric lock inside the front push door 8 is opened. If the goggles are not worn or it is detected that the person is not the direct person in charge, the electric lock of the front push door 8 cannot be opened. In addition, when the person who is not the direct person in charge of the equipment but is another person in the personnel database, such as the person in charge or another colleague who has been trained and formally replaced by the direct person in charge, can press the emergency close button 15, and the emergency close button 15 signal is transmitted to the control module 11. At the same time, the visual recognition CCD camera 16 is used to identify whether the person who opens the door is wearing goggles. If the person is wearing goggles, the control module 11 controls the electric lock of the front push door 8 to open. If the person is not another person in the personnel database or is not wearing goggles, the control module 11 controls the electric lock of the front push door 8 not to open. The visual recognition CCD camera 16 is used to check whether the person who opens the door is wearing goggles to ensure that all entrants meet the basic safety protection requirements, reducing the risk of injury caused by personal negligence.

[0033] In this embodiment, the visual recognition CCD camera 16 is arranged above the facial recognition unit 14 and located on the surface of the same front push door 8, and an emergency closing button 15 is arranged on one side of the facial recognition unit 14 and located on the surface of the front push door 8; The visual recognition CCD camera 16 is used to detect whether the door opener wears goggles on his face. The fingerprint recognition unit 13, the face recognition unit 14, the emergency close button 15 and the visual recognition CCD camera 16 are respectively connected to the control module 11 for transmission.

[0034] In this embodiment, the interception entry alarm module 48 is provided on the infrared detector 21 on the inner wall of the CNC machine tool assembly 1 and the pressure safety monitoring station 20 provided behind the front push door 8 and located inside the CNC machine tool assembly 1. The infrared detector 21 is used to detect the safe distance of the body of the door opener probing into the inner cavity of the CNC machine tool assembly 1, and the alarm light 4 on the top of the CNC machine tool assembly 1 is controlled to turn on and off the alarm through the control module 11. When the infrared detector 21 detects that the body of the door opener protrudes into the inner cavity of the CNC machine tool assembly 1, the infrared detector 21 transmits a signal to the control module 11. When the control module 11 determines that the body of the door opener protrudes into the inner cavity of the CNC machine tool assembly 1 exceeds the preset safe distance, the control module 11 controls the alarm light 4 to turn on for flashing alarm and buzzing alarm reminder. At the same time, the control module 11 controls the floor scale 17 to detect the number of safe operators. When the floor scale 17 detects that a safety observer is standing on it, it sends a signal to the control module 11, so that the control module 11 determines that in addition to the maintenance personnel entering the inner cavity of the CNC machine tool assembly 1, there is also a safety observer on the scene. At this time, the control module 11 will not open the electric lifting column 25, so that the safety interception net 26 is still in the initial position, and the alarm light 4 is turned off synchronously. The safety observer can observe the situation on the scene to prevent other personnel from suddenly appearing and suddenly starting the CNC machine tool assembly 1 without knowing it, thereby improving the safety of the maintenance personnel and preventing accidents. When the control module 11 controls to detect that there is no safety observer standing on the floor scale 17, the control module 11 controls to open the electric lifting column 25, so that the electric lifting column 25 drives the safety interception net 26 to descend into the inner cavity of the CNC machine tool assembly 1 and is located in front of the tool, so as to intercept the maintenance personnel's body from continuing to probe into the inner cavity of the CNC machine tool assembly 1, until the floor scale 17 detects that there is a safety observer standing, the control module 11 controls the electric lifting column 25 to drive the safety interception net 26 to rise to the initial position, and synchronously turns off the alarm light 4, so that the maintenance personnel are allowed to probe into the inner cavity of the CNC machine tool assembly 1 for maintenance.

[0035] In this embodiment, the pressure safety monitoring station 20 is located at the lower part of the inner cavity of the CNC machine tool assembly 1 and is used to detect the door opener stepping into the inner cavity of the CNC machine tool assembly 1, thereby controlling the two-way warning component 22 and the safety interception component 10 in the inner cavity of the CNC machine tool assembly 1 through the control module 11 to perform physical warning and physical interception.

[0036] In this embodiment, the module 49 for detecting the number of safe operators includes a weighbridge well 7 embedded in the ground in front of the CNC machine tool assembly 1, a weighbridge member 17 embedded in the weighbridge well 7, and a detachable manhole cover 18 covering the top of the weighbridge well 7; The weighbridge 17 is connected to the control module 11 via a cable 6 .

[0037] In this embodiment, the two-way warning component 22 includes a monitoring support platform 27, an L movable column 40 and a warning metal bell 41, which are arranged below the pressure safety monitoring platform 20 and fixedly installed at the lower part of the inner cavity of the CNC machine tool assembly 1. An elastic downward pressing reset component is arranged between the two monitoring support platforms 27 and the pressure safety monitoring platform 20. A double-headed screw 34 is horizontally penetrated and connected inside the monitoring support platform 27. The pressure safety monitoring platform 20 drives the double-headed screw 34 to rotate in the monitoring support platform 27 through a gear rack transmission member; External threaded paths 37 with opposite thread directions are provided at both ends of the double-headed screw 34. Sliding blocks 36 are threadedly connected to the circumference of the two external threaded paths 37. An L-shaped moving column 40 is fixed to the top of each sliding block 36. Warning metal bells 41 are provided on the tops of the two L-shaped moving columns 40. Two warning metal bells 41 are arranged on both sides of the front push door 8. When the door opener steps on the pressure safety monitoring platform 20 and enters the CNC machine tool assembly 1, the pressure safety monitoring platform 20 drives the double-headed screw 34 to rotate through the gear rack transmission member, so that the two L-shaped moving columns 40 move centripetally, and the two warning metal bells 41 ring at the ears of the door opener on both sides. The warning metal bells 41 are physical warnings.

[0038] In this embodiment, a pressure sensor 45 is also arranged between the monitoring support platform 27 and the pressure safety monitoring platform 20. The pressure sensor 45 is connected to the control module 11. The safety interception component 10 includes a U-shaped bracket 24 fixed to the top of the inner cavity of the CNC machine tool assembly 1, an electric lifting column 25 fixed to the inner top wall of the U-shaped bracket 24, and a safety interception net 26 fixed to the bottom lifting end of the electric lifting column 25. When the electric lifting column 25 detects that the door opener's stepping pressure safety monitoring platform 20 enters the inner cavity of the CNC machine tool assembly 1, the control module 11 controls the floor scale 17 to detect the number of safe operators. When the floor scale 17 detects that a safety observer is standing on it, it sends a signal to the control module 11, so that the control module 11 determines that in addition to the maintenance personnel entering the inner cavity of the CNC machine tool assembly 1, there is also a safety observer on the scene. At this time, the control module 11 will not open the electric lifting column 25, so that the safety interception net 26 is still in the initial position. The safety observer can observe the situation on the scene to prevent other personnel from suddenly appearing and suddenly starting the CNC machine tool assembly 1 without knowing it, thereby improving the safety of the maintenance personnel and preventing accidents. When the control module 11 controls to detect that there is no safety observer standing on the floor scale 17, the control module 11 controls to open the electric lifting column 25, so that the electric lifting column 25 drives the safety interception net 26 to descend into the inner cavity of the CNC machine tool assembly 1 and is located in front of the tool, which is used to intercept maintenance personnel from entering the inner cavity of the CNC machine tool assembly 1, until the floor scale 17 detects that there is a safety observer standing, the control module 11 controls the electric lifting column 25 to drive the safety interception net 26 to rise to the initial position, and then the maintenance personnel are allowed to enter the inner cavity of the CNC machine tool assembly 1 for maintenance. The safety interception net 26 is a physical interception. A crossbeam 19 is fixed on the top surface of the machine tool outer cover 3, and a rectangular opening 23 is opened on the top surface of the crossbeam 19 for the safety interception net 26 to be lifted and lowered longitudinally, and a U-shaped bracket 24 is welded to the top surface of the crossbeam 19. The floor scale 17 is located directly in front of the control panel 5. A safety officer facial recognition lens 50 is also provided on the surface of the control panel 5. The safety officer facial recognition lens 50 is used to identify whether the person standing on the floor scale 17 is a person, so as to prevent other heavy objects from being placed on the floor scale 17 to make up the number, thereby increasing the safety supervision effect.

[0039] In this embodiment, the four corners of the top surface of the pressure safety monitoring platform 20 are all provided with first positioning holes 28, and the elastic downward pressing reset component includes first positioning rods 29 welded at the four corners of the bottom surface of the pressure safety monitoring platform 20 and first springs 30 sleeved on each first positioning rod 29. The first positioning rod 29 is inserted into the first positioning hole 28, and the top end of the first spring 30 is fixed to the bottom surface of the pressure safety monitoring platform 20. When the door opener steps on the pressure safety monitoring platform 20, the pressure safety monitoring platform 20 drives the first positioning rod 29 to descend in the first positioning hole 28, and the first spring 30 is compressed. When the pressure safety monitoring platform 20 is not stepped on, the first spring 30 resets the pressure safety monitoring platform 20. A through cavity 31 for installing a gear rack transmission member is opened on the top surface of the monitoring support platform 27. The gear rack transmission member includes a rack 32 fixed to the bottom surface of the pressure safety monitoring platform 20 and a gear 33 sleeved on the circumference of the double-headed screw 34 in the through cavity 31. The rack 32 and the gear 33 are meshingly connected. When the pressure safety monitoring platform 20 is stepped on, the pressure safety monitoring platform 20 presses down the rack 32, so that the rack 32 drives the gear 33 to rotate clockwise, thereby driving the double-headed screw 34 to rotate, and driving the two L-moving columns 40 to move centripetally under the design of the two external threaded tooth paths 37. When the pressure safety monitoring platform 20 loses the stepping force and resets to rise, it drives the rack 32 to rise, so that the rack 32 drives the gear 33 to rotate counterclockwise, driving the double-headed screw 34 to rotate, and driving the two L-moving columns 40 to move backward relative to each other under the design of the two external threaded tooth paths 37. The two ends of the double-headed screw 34 are connected to the L support plate 35 through the sealed bearing 42. The two L support plates 35 are fixed to the outer wall of the monitoring support platform 27 at the opposite ends. The two sliders 36 are provided with internal threaded holes 47 for the external threaded tooth path 37 to connect. The bottom surface of each slider 36 is rolled with a plurality of steel balls 46. The steel balls 46 are in rolling friction contact with the lateral inner bottom wall of the L support plate 35, so that when the slider 36 moves linearly on the L support plate 35, the steel balls 46 can help the slider 36 to move smoothly and prevent jamming. The inside of the double-headed screw 34 is also connected to the monitoring support platform 27 through the sealed bearing 42 to facilitate the rotation of the double-headed screw 34.

[0040] In this embodiment, a second positioning hole 38 is also provided on the top surface of the monitoring support platform 27, a second positioning rod 43 is inserted into the second positioning hole 38, a second spring 39 is sleeved around the second positioning rod 43, a top cover 44 is welded to the top of the second positioning rod 43 and located above the second spring 39, and a pressure sensor 45 is installed on the top surface of the top cover 44. At the same time, the height dimension of the second spring 39 is smaller than the height dimension of the first spring 30, that is, when the door opener steps on the pressure safety monitoring platform 20, it first drives the first spring 30 to compress and the rack 32 to descend, so that the warning metal bell 41 rings, and when the door opener continues to press down and fully steps on it, the pressure safety monitoring platform 20 will touch the pressure sensor 45, and at this time, the pressure sensor 45 transmits the signal to the control module 11, and the control module 11 will control the opening and closing of the electric lifting column 25.

[0041] Working principle: In this intelligent CNC machine tool with detection and alarm function, when someone tries to open the front push door 8, the fingerprint recognition unit 13 and the face recognition unit 14 in the visual recognition module 9 will collect the biometric data of the door opener. These data are transmitted to the control module 11 and compared with the pre-stored operator database. If the door opener is the direct person in charge of the equipment or other authorized personnel, further security checks are allowed. The visual recognition CCD camera 16 checks whether the door opener is wearing the necessary protective equipment, such as goggles. If it is not worn correctly, the front push door 8 will not be opened even if the identity verification is passed.

[0042] When it is necessary to enter the inner cavity of the CNC machine tool for maintenance, the floor scale component 17 in the operation safety number detection module 49 will monitor whether there is a safety observer standing on it. This is to ensure that there are at least two people on site, namely a maintenance person who performs the task and a safety officer responsible for supervision. The safety officer facial recognition lens 50 will capture the facial image of the person standing on the floor scale component 17 and identify it through the control module 11 to confirm that the person is indeed a registered safety officer, and not an object or other unauthorized person.

[0043] Once the front push door 8 is opened, the infrared detector 21 in the CNC machine tool assembly 1 will start to work and continuously monitor the position of the maintenance personnel. If the maintenance personnel are too close to the dangerous area such as the tool position, the infrared detector 21 will send a signal to the control module 11.

[0044] When the maintenance personnel enter the inner cavity of the CNC machine tool, they step on the pressure safety monitoring platform 20, triggering the mechanical transmission device below it. This will not only cause a physical alarm - the L moving column 40 moves centripetally, causing the warning metal bell 41 to ring, but also activate the pressure sensor 45.

[0045] If the control module 11 finds that there is no safety observer present, or the maintenance personnel are too close to the danger zone, the electric lifting column 25 will be activated, driving the safety interception net 26 to descend to an appropriate position to prevent the maintenance personnel from moving forward, and will not rise again until the conditions are met.

[0046] During the whole process, once the warning light 4 and the two-way warning component 22 detect any abnormal situation, the warning light 4 will flash and sound an alarm.

[0047] When the maintenance work is completed, the maintenance personnel leave the inner cavity of the CNC machine tool, and the first spring 30 and the second spring 39 on the pressure safety monitoring table 20 help to restore the original state. At this time, after the control module 11 confirms that all conditions are normal, it allows the front push door 8 to close, and the system returns to normal.

[0048] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent CNC machine tool with detection and alarm function, characterized in that: include: CNC machine tool assembly (1); A visual recognition module (9) is arranged on the front sliding door (8) of the numerical control machine tool assembly (1) and is used to detect and identify the person who opens the door; An interception entry alarm module (48) is arranged in the inner cavity of the numerical control machine tool assembly (1) and is used to detect illegal operations by the door opener and to generate an alarm and physically intercept the door; The module (49) for detecting the number of safe operators is connected to the control module (11) in the numerical control machine tool assembly (1) via wired or wireless transmission, and the module (49) for detecting the number of safe operators is used to detect the number of safe operators for on-site maintenance so as to determine the safe opening and closing of the control interception entry alarm module (48).

2. The intelligent CNC machine tool with detection and alarm function according to claim 1, characterized in that: The visual recognition module (9) comprises a fingerprint recognition unit (13) arranged on the surface of a door handle (12) of the front sliding door (8), a facial recognition unit (14) arranged on the surface of the front sliding door (8), and a visual recognition CCD camera (16) arranged on the surface of the front sliding door (8).

3. The intelligent CNC machine tool with detection and alarm function according to claim 1, characterized in that: The visual recognition CCD camera (16) is arranged above the facial recognition unit (14) and located on the surface of the same front sliding door (8); an emergency closing button (15) is arranged on one side of the facial recognition unit (14) and located on the surface of the front sliding door (8); The visual recognition CCD camera (16) is used to detect whether the door opener is wearing goggles on his face, and the fingerprint recognition unit (13), the facial recognition unit (14), the emergency close button (15) and the visual recognition CCD camera (16) are respectively connected to the control module (11) in a transmission manner.

4. The intelligent CNC machine tool with detection and alarm function according to claim 2, characterized in that: The interception entry alarm module (48) is provided with an infrared detector (21) on the inner wall of the CNC machine tool assembly (1) and a pressure safety monitoring station (20) provided behind the front sliding door (8) and located inside the CNC machine tool assembly (1); the infrared detector (21) is used to detect the safe distance of the body of the door opener probing into the inner cavity of the CNC machine tool assembly (1), and controls the alarm light (4) on the top of the CNC machine tool assembly (1) to turn on and off the alarm through the control module (11).

5. The intelligent CNC machine tool with detection and alarm function according to claim 4, characterized in that: The pressure safety monitoring station (20) is located at the lower part of the inner cavity of the CNC machine tool assembly (1) and is used to detect that a door opener has stepped into the inner cavity of the CNC machine tool assembly (1), thereby controlling the two-way warning component (22) and the safety interception component (10) in the inner cavity of the CNC machine tool assembly (1) through the control module (11) to perform physical warning and physical interception.

6. The intelligent CNC machine tool with detection and alarm function according to claim 5, characterized in that: The module (49) for detecting the number of safe operators comprises a weighbridge well (7) embedded in the ground in front of the CNC machine tool assembly (1), a weighbridge component (17) embedded in the weighbridge well (7), and a detachable well cover (18) covering the top of the weighbridge well (7); The weighbridge component (17) is connected to the control module (11) via a cable (6).

7. The intelligent CNC machine tool with detection and alarm function according to claim 6, characterized in that: A monitoring support platform (27) is fixedly installed below the pressure safety monitoring platform (20) and located at the lower part of the inner cavity of the numerical control machine tool assembly (1), and an elastic downward pressing reset component is provided between the monitoring support platform (27) and the pressure safety monitoring platform (20); A double-headed screw (34) is laterally connected and penetrates the interior of the monitoring support platform (27), and the pressure safety monitoring platform (20) drives the double-headed screw (34) to rotate in the monitoring support platform (27) via a gear rack transmission member; External threaded paths (37) with opposite thread directions are provided at both ends of the double-headed screw (34); the peripheral sides of the two external threaded paths (37) are threadedly connected to sliders (36); an L-shaped movable column (40) is fixed to the top of each of the sliders (36); and a warning metal bell (41) is provided at the top of the two L-shaped movable columns (40); The two warning metal bells (41) are arranged on symmetrical sides of the front sliding door (8). When the door opener steps on the pressure safety monitoring platform (20) to enter the CNC machine tool assembly (1), the pressure safety monitoring platform (20) drives the double-headed screw (34) to rotate through the gear rack transmission member, so that the two L-shaped movable columns (40) move centripetally, and the two warning metal bells (41) ring at the ears of the door opener on both sides as a warning.

8. The intelligent CNC machine tool with detection and alarm function according to claim 7, characterized in that: A pressure sensor (45) is also provided between the monitoring support platform (27) and the pressure safety monitoring platform (20), and the pressure sensor (45) is connected to the control module (11); The safety interception assembly (10) comprises a U-shaped bracket (24) fixed to the top of the inner cavity of the numerical control machine tool assembly (1), an electric lifting column (25) fixed to the inner top wall of the U-shaped bracket (24), and a safety interception net (26) fixed to the bottom lifting end of the electric lifting column (25).

9. The intelligent CNC machine tool with detection and alarm function according to claim 8, characterized in that: The four corners of the top surface of the pressure safety monitoring platform (20) are each provided with a first positioning socket (28); The elastic downward-pressing reset component comprises a first positioning rod (29) welded to four corners of the bottom surface of the pressure safety monitoring platform (20) and a first spring (30) sleeved on each first positioning rod (29), the first positioning rod (29) being inserted into a first positioning hole (28), and the top end of the first spring (30) being fixed to the bottom surface of the pressure safety monitoring platform (20).

10. The intelligent CNC machine tool with detection and alarm function according to claim 9, characterized in that: A second positioning hole (38) is also provided on the top surface of the monitoring support platform (27), a second positioning rod (43) is inserted into the second positioning hole (38), and a second spring (39) is sleeved around the circumference of the second positioning rod (43); A top cover (44) is welded to the top of the second positioning rod (43) and located above the second spring (39), and the pressure sensor (45) is mounted on the top surface of the top cover (44).

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