Safety bolt system and method

Abstract

The invention relates to the technical field of equipment safety, and discloses a safety bolt system and method, and the system comprises a control module, an upper computer and at least one safety bolt device which are electrically connected. The safety bolt device comprises a mounting seat, a cylinder assembly, a bolt assembly and a sensor assembly; the bolt assembly is movably mounted in the mounting seat; the cylinder assembly is mounted on the outer side of the mounting seat and connected with the front end of the bolt assembly; the cylinder assembly is parallel to the length-direction axis of the bolt assembly, and the plane of the two axes is perpendicular to the bottom surface of the mounting seat; a sensor base for mounting a sensor assembly is arranged on the air cylinder assembly; the sensor integration collects data representing the state of the bolt assembly; the upper computer displays the state of the bolt assembly and sends an instruction; the control module receives and processes the data representing the state of the plug pin assembly and controls the air cylinder assembly to act so as to drive the plug pin assembly to move out of or move into the installation base. According to the scheme, the structural strength of the safety bolt device is improved, whole-process automatic remote operation is achieved, and the system safety capacity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment safety, and particularly relates to a safety bolt system and method. Background Art

[0002] In the punching press operation environment, the safety bolt is a key safety measure, mainly used to provide physical support and limit during equipment maintenance and die replacement to prevent the slider from accidentally falling and causing personal injury or equipment damage.

[0003] Traditionally, the mechanical bolt method is adopted. Usually, the bolt consists of multiple movable safety columns; during use, these safety columns need to be transported to the preset position of the equipment to support the slider for limiting, providing necessary safety protection for the operator.

[0004] However, this traditional safety mechanism has significant operational inconvenience and safety risks. For example, in the application scenario of a large punching press, the size and weight of a single safety column (such as a thickness of 150 mm and a weight of 40 to 60 kg) require at least two operators to cooperate to complete the handling and installation work. Moreover, the entire safety measure needs to be installed at the four corners of the large punching press, so it needs to be handled and installed 4 times. This handling and installation process itself is rather cumbersome, consuming a lot of time and energy, reducing work efficiency, increasing labor costs, and also having handling and installation operation risks; in actual applications, when only a single operator is present, due to the inability to individually handle and install such a heavy safety column, the use of the safety column is often abandoned. This failure to implement safety measures due to human negligence greatly increases the operation risk and further enlarges the safety hazard. Summary of the Invention

[0005] The present invention aims to provide a safety bolt system and method to solve the technical problem of high safety risk in the use of the existing mechanical bolt method.

[0006] The basic solution provided by the present invention is: a safety bolt system, including a control module, a host computer, and at least one safety bolt device that are electrically connected;

[0007] The safety bolt device includes a mounting base, a cylinder assembly, a bolt assembly, and a sensor integration; the bolt assembly is movably installed in the mounting base; the cylinder assembly is installed on the outer side of the mounting base and is connected to the front end of the bolt assembly; the axis in the length direction of the cylinder assembly is parallel to the axis in the length direction of the bolt assembly, and the plane where the two axes are located is perpendicular to the bottom surface of the mounting base; a sensor base for installing the sensor integration is provided on the cylinder assembly.

[0008] The sensor integration is used to collect data characterizing the state of the latch assembly; the control module is used to receive and process the data characterizing the state of the latch assembly, and is also used to control the operation of the cylinder assembly to drive the latch assembly to move out of or into the mounting base to the required state; the host computer is used to display the state of the latch assembly and send instructions.

[0009] The present invention also provides a usage method of a safety latch system. The safety latch system includes a control module, a host computer and at least one safety latch device which are electrically connected; the safety latch device includes a mounting base, a cylinder assembly, a latch assembly and a sensor integration; the usage method applied to the equipment includes:

[0010] S100, install one safety latch device in each of multiple directions on the limit operation plane of the equipment, and the axes of all cylinder assemblies and latch assemblies in the length direction are located on the limit operation plane;

[0011] S200, electrically connect the control module with the equipment control system to interlock the equipment and all safety latch devices;

[0012] S300, use the sensor integration to collect data characterizing the state of the latch assembly; use the host computer to display the states of all latch assemblies and send instructions; use the control module to receive and process the data characterizing the state of the latch assembly, and control the operation of the cylinder assembly according to the instructions of the host computer and / or the control system to drive the latch assembly to move out of or into the mounting base to the required state, so as to support and limit the equipment on the limit operation plane when moving out in place, and make way for the equipment when moving in place.

[0013] The working principle and advantages of the present invention are as follows:

[0014] Equipment such as large punching presses and presses is usually used in production environments that require high pressure and a large amount of processing volume, and is suitable for stretching and extrusion forming processing of various parts, and is widely used in industries such as automobiles, aviation, and mechanical manufacturing. Commonly used ones are, for example, 1000T and 1600T multi-station mechanical presses, 1600T mechanical press automated production lines, 2000T hydraulic press automated production lines, 400T and 600T mechanical presses, with the slider size being (3400 - 5500)*(1400 - 2500) mm, the maximum die setting height of the slider being 750 - 2000 mm, the slider stroke frequency being 8 - 26 times / min, and the descending speed being 400 - 500 mm / sec. Such large equipment has extremely strict requirements for the safety latch structure, and it is necessary to ensure reliable safety protection in a high-pressure and fast-operation environment, and the safety latch must be able to withstand huge working loads and ensure stability and durability, and the structure also needs to meet the requirement of simplifying the installation process to adapt to the needs of single-person operation.

[0015] This safety bolt system is designed for the application scenarios of protection equipment such as large punching presses and presses. It improves the device structure and operation mode, comprehensively considering factors such as the installation layout method, the high-frequency vibration that may be endured during use, and potential operation risks. It enhances the strength of the safety bolt device itself in terms of structure and realizes full-process automated remote operation in terms of control mode, jointly improving the safety capabilities of the system in multiple aspects.

[0016] In terms of structure, the layout of the mounting base, cylinder assembly, bolt assembly, and sensor integration is reasonably designed. Through the design of the cylinder assembly and bolt assembly inside and outside the mounting base, the support strength is enhanced, which is sufficient to cope with the sudden impact force that may exist in large equipment, avoiding the risk of the bolt assembly becoming loose due to high-frequency vibration and causing the failure of physical support. At the same time, the manufacturing cost is reduced. Specifically, the bolt assembly is installed inside the mounting base, and the mounting base plays a role in supporting the bolt assembly, improving the support strength of the bolt assembly when it serves as a physical support. And through the reasonable design of the slide rail parts and limit plates, as well as the two-layer fixation of the mounting base bolts and full welding, the support strength of the mounting base for the bolt assembly can be further enhanced from two aspects: limit movement and the mounting base itself; the cylinder assembly is installed outside the mounting base, making the size of the mounting base reasonable and reducing the manufacturing cost. At the same time, the axis in the length direction of the cylinder assembly is parallel to the axis in the length direction of the bolt assembly, and the plane where the two axes are located is perpendicular to the bottom surface of the mounting base, fully considering the installation method, which can make the positions of the cylinder assembly and the bolt assembly reasonable after installation, avoiding damage to the cylinder assembly caused by the equipment when the bolt assembly provides physical support for the equipment or the support fails, and improving the service life of the system components.

[0017] In terms of control mode, data acquisition is realized by using sensor integration, and the driving of the bolt assembly is realized by using the cylinder assembly. Through the control module and the host computer, the remote control of the bolt assembly moving in or out is jointly realized, as well as the multi-station positions and states of the visual bolts and sensors installed on large equipment (such as punching presses and presses). The whole process can be operated and monitored remotely by a single person automatically, replacing the inefficient operation of frequently moving the safety column, greatly reducing the safety risk, and improving the operation efficiency and the safety of the working environment. Connecting the safety bolt system to the equipment control system, such as the PLC control system of a punching press, can realize the interlock between the equipment actions and the states of all bolt assemblies, ensuring that no manual intervention is possible when all bolt assemblies are not fully moved in and locked or the equipment is running, thus effectively reducing the safety risk of personnel accidentally entering the stamping area. At the same time, it improves the standardization and reliability of equipment operation, providing multiple guarantees for safe production. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a safety bolt system provided by an embodiment of the present invention;

[0019] Figure 2Structural schematic diagram of the safety bolt device provided by the embodiment of the present invention;

[0020] Figure 3 Front view of the safety bolt device provided by the embodiment of the present invention;

[0021] Figure 4 Top view of the safety bolt device provided by the embodiment of the present invention;

[0022] Figure 5 Rear view of the safety bolt device provided by the embodiment of the present invention;

[0023] Figure 6 Right view of the safety bolt device provided by the embodiment of the present invention;

[0024] Figure 7 Top view of the safety bolt device provided by the embodiment of the present invention;

[0025] Figure 8 Structural schematic diagram of the bottom plate and the slide rail member provided by the embodiment of the present invention;

[0026] Figure 9 Structural schematic diagram of the bottom plate, the slide rail member and the bolt assembly provided by the embodiment of the present invention;

[0027] Figure 10 Display schematic of the host computer provided by the embodiment of the present invention Figure 1 ;

[0028] Figure 11 Display schematic of the host computer provided by the embodiment of the present invention Figure 2 ;

[0029] Figure 12 Display schematic of the host computer provided by the embodiment of the present invention Figure 3 ;

[0030] The reference signs in the accompanying drawings of the specification include: mounting base 1, bottom plate 11, groove 111, reinforcing base 12, slide rail member 13, fixed seat 131, guide rail 132, fastener 14, cylinder assembly 2, connector 21, sensor base 22, speed control valve 23, spring washer assembly 24, bolt assembly 3, pin 31, connecting plate 32, limiting plate 33. Detailed Description of the Invention

[0031] The following is a more detailed description through specific embodiments:

[0032] The embodiment is basically as shown in the attached Figure 1 : A safety bolt system includes a control module, a host computer and at least one safety bolt device that are electrically connected.

[0033] AsFigure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 2 , ,

[0034] , Figure 8 , Figure 8 , Figure 3 , Figure 4 , ,

[0035] , ,

[0036] , Figure 2 , ,

[0037] , Figure 9 , the safety bolt device includes a mounting base 1, a cylinder assembly 2, a bolt assembly 3 and a sensor integration; the bolt assembly 3 is movably installed in the mounting base 1; the cylinder assembly 2 is installed on the outer side of the mounting base 1 and is connected to the front end of the bolt assembly 3, and the front end is the direction indicated by the arrow. The sensor integration, the cylinder assembly are electrically connected to the control module, and the control module is electrically connected to the upper computer.

[0034] The mounting base 1 includes a bottom plate 11 and a reinforcing base 12; as shown in Figure 8 , along the length direction of the bottom plate 11 (the direction indicated by the arrow in Figure 8 ), the bottom plate 11 is provided with a groove 111; as shown in Figure 3 and Figure 4 , the reinforcing base 12 is installed in the groove 111 and is double-fixed by full welding and fasteners 14 to enhance the connection stability. Corresponding fasteners 14 will be installed in the holes shown in the figure during use. The fasteners 14 can be bolts, socket head cap screws, socket set screws with cone point, etc., and can be selected appropriately.

[0035] The length of the bottom plate 11 is the same as that of the reinforcing base 12, and the whole is symmetrical; the length of the bottom plate 11 is 285 - 420 mm, the width is 320 - 400 mm, and the height is 30 - 60 mm; the height of the reinforcing base 12 is 120 - 180 mm, and the size is reasonably selected to provide effective strong support.

[0036] The cross-section of the reinforcing base 12 along the length direction of the bottom plate 11 (the direction indicated by the arrow in Figure 2 ) is in a U shape, and a through groove for the bolt assembly 3 to move is provided along this direction; both sides of the reinforcing base 12 have inclined surfaces, so that the upper part of the reinforcing base 12 is in an isosceles trapezoid shape, and the inclination angle is 100 - 125 degrees. The obtuse angle design reduces the stress concentration at the corners of the reinforcing base 12, reduces the risk of cracking, improves the structural anti-deformation ability, improves the overall load-bearing efficiency, and realizes process friendliness.

[0037] As shown in Figure 9 ​​​​​​​​​​​​​As shown, the latch assembly 3 includes a latch 31 and a connecting plate 32 mounted at the front end of the latch 31, and further includes a limit plate 33 mounted at the rear end of the latch 31. The latch 31 is in the shape of a cuboid and is made of wear-resistant and fatigue-resistant steel. The length of the latch 31 is adapted to the length of the mounting base 1. In this embodiment, the length of the latch 31 is greater than the lengths of the bottom plate 11 and the strengthening base 12. When the latch is moved into place, a part of it is limited outside the mounting base 1, meeting the connection requirements of the cylinder assembly 2 and the latch assembly 3, and being adapted to the limit installation scenario of large equipment, and quickly moving out into place. The length * width * height of the latch 31 can be 440 * 100 * 100 mm, and the overall weight is appropriate, meeting the strength and installation requirements.

[0038] As Figure 3 and Figure 8 shown, a slide rail member 13 is installed on the mounting base 1 corresponding to the moving-in or moving-out path of the latch assembly 3, that is, the slide rail member 13 is installed on the bottom plate 11 corresponding to the through groove of the strengthening base 12. The slide rail member 13 includes a fixed seat 131 and a guide rail 132 slidably installed on the fixed seat 131. The fixed seat 131 is fixedly installed on the bottom plate 11. The guide rail 132 is connected to the latch assembly 3. Specifically, the guide rail 132 is fixedly connected to the latch 31. The length of the guide rail 132 is the same as the length of the latch 31. The guide rail 132 guides the moving-out path of the latch 31, thereby realizing the movable installation of the latch assembly 3.

[0039] The contact surface between the fixed seat 131 and the guide rail 132 has a plurality of bending arcs, which improves the locking effect in the non-sliding state after installation while ensuring smooth sliding; along the length direction of the guide rail 132 ( Figure 8 the direction indicated by the arrow), there is a length difference between the length of the fixed seat 131 and the length of the guide rail 132. In this embodiment, two sub-fixed seats 131 are provided, fixedly installed on the bottom plate 11 near the front end of the latch assembly 3, and the length difference is 200 - 250 mm. The size of the limit plate 33 at the rear end of the latch 31 meets the requirement of not interfering with the bottom plate 11 and can contact the fixed seat 131. This solution realizes the limit movement of the latch 31 through the design of the length difference between the fixed seat 131 and the guide rail 132 and the design of the limit plate 33 at the rear end of the latch 31. That is, when the latch 31 moves, it drives the limit plate 33 to move. If the limit plate 33 moves and contacts the fixed seat 131, the fixed seat 131 limits the limit plate 33 and simultaneously restricts the movement of the latch 31. Of course, under normal operating conditions, the limit control of the latch assembly is integrated with the cylinder assembly and the sensor. The addition of the limit plate 33 is to strengthen and ensure the effective limit effect.

[0040] The cylinder assembly 2 includes a cylinder, a connector 21, a speed control valve 23, a solenoid valve, a cylinder joint, and a silencer, and can adopt the configuration of conventional cylinder-related devices. The cylinder assembly 2 is fixedly installed on the top surface of the U-shaped reinforcement base 12. When installing, a spring washer assembly 24 is used to fix the cylinder assembly 2, which can effectively enhance the stability of the connection, reduce the risk of loosening caused by vibration, and at the same time provide good buffering and shock absorption effects, ensuring the smooth operation and reliability of the cylinder. The air inlet and outlet of the cylinder are equipped with a speed control valve 23, and the size of the air source is adjusted by controlling the speed control valve 23 to control the speed of the cylinder action. The speed control valve 23 is connected to the solenoid valve, and the solenoid valve is equipped with a silencer and a tracheal joint. The solenoid valve is electrically connected to the control module and is controlled by the control module to switch.

[0041] A sensor base 22 for installing a sensor integration is provided on the cylinder assembly 2. Specifically, the sensor base 22 is arranged on the bracket of the cylinder assembly 2. The sensor integration includes a cylinder magnetic switch, and a CS1-A model product can be selected to collect data characterizing the state of the pin assembly 3, such as position data. Specifically, through the paired installation of cylinder magnetic switches (front end and rear end), the telescopic stroke of the cylinder can be monitored in real time to determine the position data of the pin assembly, and the relevant signals are transmitted to the control module to provide trigger conditions for subsequent actions. At the same time, a safety protection mechanism and abnormal state protection can also be provided through the cylinder magnetic switch. When the cylinder moves beyond the limit or gets stuck, the magnetic switch can trigger an emergency stop or alarm to prevent equipment damage and personal injury; for circuit on-off control, in dangerous working conditions, the cylinder magnetic switch can assist in quickly cutting off the power supply and activating the safety pin device to improve safety.

[0042] The cylinder assembly 2 is connected to the front end of the pin assembly 3. Specifically, the connector 21 provided at the front end of the cylinder assembly 2 is fixedly connected to the connecting member 32, and the pin 31 and the cylinder assembly 2 are fixedly connected together. The axis in the length direction of the cylinder assembly 2 is parallel to the axis in the length direction of the pin assembly 3, and the plane where the two axes are located (as shown by the dotted line) is perpendicular to the bottom surface of the mounting base 1, fully considering the installation method, which can make the positions of the cylinder assembly and the pin assembly reasonable after installation, and avoid damage to the cylinder assembly by the equipment when the pin assembly fails to physically support the equipment or the support fails, improving the service life of the system components. Figure 3 As shown by the dotted line) is perpendicular to the bottom surface of the mounting base 1, fully considering the installation method, which can make the positions of the cylinder assembly and the pin assembly reasonable after installation, and avoid damage to the cylinder assembly by the equipment when the pin assembly fails to physically support the equipment or the support fails, improving the service life of the system components.

[0043] The independent operation process of the safety pin system in this solution is as follows:

[0044] In the initial situation, the pin assembly 3 is located in the mounting base 1, and the sensor integration collects the current stroke of the cylinder assembly 2 and sends it to the control module; the control module processes the data based on the received current stroke, judges that the pin assembly is in the state of being moved in place, and transmits it to the upper computer for display.

[0045] After the control module receives the removal instruction, it controls the cylinder assembly 2 to drive the pin 31 out of the mounting seat 1 through the connecting plate 32. The guide rail 132 guides the removal path of the pin 31. At the same time, when the pin 31 moves, it drives the limit plate 33 to move. If the limit plate 33 moves into contact with the fixed seat 131, the fixed seat 131 limits the limit plate 33 and at the same time restricts the movement of the pin 31. During the process, the sensor integration continuously collects the stroke of the cylinder assembly (characterizing the state data of the plug assembly 3). The control module determines the real-time state, real-time position and other information of the plug assembly 3 based on the real-time stroke of the cylinder assembly 2, and judges whether it is in place based on the real-time position data; when it is judged that the plug assembly 3 has been removed in place, the control module controls the cylinder assembly 2 to stop running. At this time, most of the plug assembly 3 is outside the mounting seat 1, and a small part is limited inside the mounting seat 1. In this embodiment, at least one-third to one-fourth of the part is limited inside the mounting seat 1.

[0046] After the control module receives the insertion / retraction instruction, it controls the cylinder assembly 2 to drive the pin 31 into the mounting seat 1. The guide rail 132 guides the insertion path of the pin 31. At the same time, when the pin 31 moves, it drives the limit plate 33 to move. During the process, the sensor integration continuously collects the stroke of the cylinder assembly 2 (characterizing the state data of the plug assembly 3). The control module determines the real-time state, real-time position and other information of the plug assembly 3 based on the real-time stroke of the cylinder assembly 2, and judges whether it is in place based on the real-time position data. When it is judged that the plug assembly 3 has been inserted in place, the control module controls the cylinder assembly 2 to stop running. At this time, most of the plug assembly 3 is inside the mounting seat 1, and a small part is limited outside the mounting seat 1. In this embodiment, at most one-sixth to one-fifth of the part is outside the mounting seat 1.

[0047] In this embodiment, the control module can receive the removal instruction and the insertion / retraction instruction by the upper computer issuing corresponding instructions, and the required in-place state can also be designed by the upper computer based on the instructions; of course, in other embodiments, other control processes can also be realized based on the data processing of the control module. For example, after data processing, by judging faults and other abnormalities, directly control the corresponding fault handling mode of the cylinder assembly. For another example, after connecting to other systems, receive the corresponding instructions of other systems as the condition for judging and driving the cylinder assembly to act.

[0048] Based on the above safety plug system, this solution also provides a usage method of the safety plug system, which is applied to large equipment. The usage method includes:

[0049] S100, install a safety plug device in each direction of the limit operation plane of the equipment, and the axes of all cylinder assemblies 2 and plug assemblies 3 in the length direction are located in the limit operation plane;

[0050] S200, electrically connect the control module with the equipment control system, and interlock the equipment and all safety plug devices;

[0051] S300 uses a sensor integration to collect data characterizing the state of the latch assembly 3; uses a host computer to display the states of all latch assemblies 3 and send instructions; uses a control module to receive and process the data characterizing the state of the latch assembly 3, and controls the cylinder assembly 2 to actuate according to the host computer and / or control system instructions to drive the latch assembly 3 to move out of or into the mounting base 1 to the required state, so as to support and limit the equipment on the limit operation plane when moving out in place, and make way for the equipment when moving in place.

[0052] In this embodiment, large equipment includes large punching presses, presses, etc., not limited to the following punching presses:

[0053] Applied punching press 1: 1600T multi-station mechanical press, slider size 4500x2500mm, maximum die setting height of the slider 1400mm, slider stroke frequency 10 - 25 times / min.

[0054] Applied punching press 2: 1600T mechanical press automated production line, slider size 4500x2500mm, maximum die setting height of the slider 1300mm, slider stroke frequency 8 - 15 times / min.

[0055] Applied punching press 3: 1000T multi-station mechanical press, slider size 5500x1800mm, maximum die setting height of the slider 1200mm, slider stroke frequency 10 - 25 times / min.

[0056] Applied punching press 4: 2000T hydraulic press automated production line, slider size 4000x2300mm, maximum die setting height of the slider 2000mm, slider descending speed 550mm / sec.

[0057] Applied punching press 5: 600T mechanical press, slider size 3400x1550mm, maximum die setting height of the slider 750mm, slider stroke frequency 12 - 22 times / min.

[0058] Applied punching press 6: 400T mechanical press, slider size 3400x1400mm, maximum die setting height of the slider 1000mm, slider stroke frequency 15 - 26 times / min.

[0059] The punching press slider is rectangular, and a safety latch device is installed at each of the four corners on the two corresponding sides of the rectangle, meeting the requirements of S100. During specific installation, the slider needs to be returned to the top dead center position, and then according to the current position of the slider, the mounting base 1 is installed by moving down 20 - 30mm. The distance between the slider and the pin is 5 - 20mm, maintaining a certain distance from the slider and not interfering during the slider operation, otherwise it is easy to cause damage to the safety latch.

[0060] When the safety bolt system of this solution is used in conjunction with large equipment, such as a punching press, the control module is connected to the punching press PLC control system. The control module can receive both the upper computer instructions and the punching press PLC control instructions simultaneously to perform corresponding operations on all safety bolt devices, so as to interlock the punching press with all safety bolt devices of this solution for remote joint control. To achieve interlock, the action programs of all safety bolt devices of this solution can also be directly written into the punching press PLC control system. Specifically, all sensors are directly connected to the PLC input module through signal lines, and the PLC performs data acquisition. Write the corresponding PLC control program and display screen, and download the display screen to the upper computer for display. Through Profinet communication, the status of the safety bolts is displayed in real time. Control components such as solenoid valves in the cylinder assembly are connected to the PLC output module. The cylinder assembly is controlled by the PLC control system through the solenoid valve. The solenoid valve realizes the extension and retraction of the cylinder assembly by switching directions. Similarly, as described above, the upper computer can display the integrated status of the cylinder assembly and sensors, and can be configured according to actual needs.

[0061] When 4 groups of cylinder assemblies 2 and sensors are integrated and connected to the punching press PLC, a total of 10 PLC input points and 2 output points are required. The IO allocation is shown in Table 1 for example (it can be used according to the input and output points reserved by the device PLC itself):

[0062] Table 1 Schematic diagram of safety bolt IO signal allocation

[0063]

[0064]

[0065] The process after the safety bolt system of this solution is connected to the equipment control system is as follows:

[0066] The equipment is interlocked with all safety bolt devices, that is, the in-place, locked, and moving states of all safety bolt devices are directly related to the start and stop of the equipment. The control system instructions are not limited to switching the equipment to the jog mode or fine-tuning mode, and the safety bolt devices can only be operated after the equipment returns to the top dead center during the return stroke. The operation process of the safety bolt devices is as described in the independent operation process of the safety bolt system of this solution above, and will not be elaborated here.

[0067] For example, when the equipment is switched to the jog mode and the equipment returns to the top dead center, the safety bolt devices can be extended or retracted; among them, when any one or more bolt assemblies are not fully retracted and locked, the equipment does not meet the operating conditions and cannot be started.

[0068] As Figure 10The figure shows the interlocking procedure between the safety latch system and the equipment. When the equipment mold is found to be abnormal, or the production process is abnormal, and the safety latch needs to be operated, the equipment must be switched to the inching mode or fine-tuning mode. The safety latch can only be operated in these two modes. At the same time, the equipment must be returned to the top dead center before it can be operated to avoid accidental operation of the safety latch during the production process, which may cause damage to the equipment and the latch. That is, the control module / PLC receives the removal instruction, and the control module sends a signal to the solenoid valve. The solenoid valve acts after receiving the signal, and the cylinder is ventilated and moves forward. When the removal sensor on the cylinder receives a signal and feeds back to the host computer, the control module / PLC judges and confirms that it has been removed and in place, and sends an in-place signal to interrupt the removal signal of the solenoid valve, and the cylinder stops moving. When the fault handling is completed or the mold repair is completed, the shift-in switch button is switched, and the control module / PLC receives the shift-in retract instruction. The control module sends a signal to the solenoid valve. The solenoid valve is actuated after receiving the signal, and the cylinder is ventilated and retracted. When the shift-in position sensor on the cylinder receives a signal and feeds back to the host computer, the control module / PLC confirms that it has been shifted in place through judgment and sends a shift-in position signal to cut off the solenoid valve shift-in signal.

[0069] The equipment needs to be restored to normal. When the equipment is switched to the inching mode and the equipment returns to the top dead center, all safety latches are moved into place and the equipment meets the operating conditions before it can be started. That is, if any one or more latches are not moved into place, the equipment cannot operate.

[0070] There are also forced in and forced out buttons on the human-machine interface. When the conditions cannot be met in some special circumstances but the safety latch must be operated, you can enter the password after manually confirming that the safety conditions on site are met, and you can force the operation after unlocking. This situation is suitable for special faults and is generally not recommended.

[0071] like Figure 11 The figure shows the signal of the safety pin at the origin position and the fault process program. When the solenoid valve is energized and the timing starts, if the safety pin has not moved into place after 3 seconds, the human-machine interface pops up an alarm message, indicating the specific number of the safety pin that has not been in place, which is convenient for troubleshooting and diagnosis.

[0072] like Figure 12 As shown, the host computer displays the safety bolt operation selection, safety bolt action signal, safety bolt action condition, safety bolt return to original position signal and safety bolt extended to full position signal on the same screen (and displays accordingly according to the actual safety bolt position). The safety bolt operation selection can be remotely operated to force extension or retraction in an emergency; the switching process can see which conditions are not met, which is convenient for operation; the move-in original position signal and the move-out full position signal are convenient for observing which sensor has not received a signal. The entire process of all safety bolt actions can be clearly seen through the host computer, which is convenient for quick assistance in operation and troubleshooting.

[0073] The plug state signal is directly fed back to the device control system, avoiding misoperations caused by signal delay or signal error that may lead to personal injury, solving the problem of misoperation, and greatly reducing the accident rate. Regularly conduct functional tests on the safety plug to ensure smooth operation and accurate signals, and effectively lock the punching machine after insertion.

[0074] It can be understood that the existing PLC control technology is very mature, and the interlock between the safety plug device of this solution and equipment such as machine tools can be realized, with the interlock effect reflected in this solution.

[0075] A safety plug system and method provided in this embodiment. The safety plug system of this solution aims at application scenarios of protection equipment such as large punching machines and presses, improves the device structure and operation mode, comprehensively considers factors such as installation layout, high-frequency vibration that may be endured during use, and potential operation risks, etc. It enhances the strength of the safety plug device itself in terms of structure, and realizes full-process automated remote operation in terms of control mode, jointly improving the system safety ability in multiple aspects.

[0076] The above are only embodiments of the present invention. Specific structures and common knowledge such as characteristics that are well-known in the art are not described in detail here. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention belongs before the application date or priority date, can know all the existing technologies in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, complete and implement this solution in combination with their own abilities. Some typical well-known structures or well-known methods should not become obstacles for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A safety bolt system, characterized in that, It includes a control module, a host computer, and at least one safety bolt device that are electrically connected; The safety bolt device includes a mounting base, a cylinder assembly, a bolt assembly, and a sensor integration; the bolt assembly is movably installed in the mounting base; the cylinder assembly is installed on the outer side of the mounting base and is connected to the front end of the bolt assembly; the cylinder assembly is parallel to the axis in the length direction of the bolt assembly, and the plane where the two axes are located is perpendicular to the bottom surface of the mounting base; a sensor base for installing the sensor integration is provided on the cylinder assembly; The sensor integration is used to collect data characterizing the state of the bolt assembly; the control module is used to receive and process the data characterizing the state of the bolt assembly, and is also used to control the action of the cylinder assembly to drive the bolt assembly to move out of or into the mounting base to the required state; the host computer is used to display the state of the bolt assembly and send instructions.

2. The safety bolt system according to claim 1, characterized in that, The mounting base includes a bottom plate and a reinforcing base; along the length direction of the bottom plate, a groove is formed on the bottom plate, and the reinforcing base is installed in the groove; the cross-section of the reinforcing base along the length direction of the bottom plate is in a shape of "Ji", and a through groove for the bolt assembly to move is formed on its bottom surface along this direction.

3. The safety bolt system according to claim 2, characterized in that, The reinforcing base has an inclined side surface.

4. A safety bolt system according to claim 1, characterized in that, A slide rail member is installed on the path where the bolt assembly moves in or out in the mounting base; the slide rail member includes a fixed seat connected to the mounting base and a guide rail slidably installed on the fixed seat; the guide rail is connected to the bolt assembly.

5. A safety bolt system according to claim 4, wherein Along the length direction of the guide rail, there is a length difference between the length of the fixed seat and the length of the guide rail, and the installation position of the fixed seat is close to the front end of the bolt assembly.

6. A safety bolt system according to claim 1, characterized in that, The bolt assembly includes a bolt and a connecting plate installed at the front end of the bolt, and the length of the bolt is greater than the length of the mounting base.

7. A safety bolt system according to claim 6, characterized in that, A limit plate is installed at the rear end of the bolt.

8. A method for using a safety bolt system, characterized in that, Using a safety bolt system according to any one of claims 1-7, the usage method applied to a device includes: S100, install one safety bolt device in each of multiple directions on the limit operation plane of the device, and the axes of all cylinder assemblies and bolt assemblies in the length direction are located on the limit operation plane; S200, electrically connect the control module to the device control system to interlock the device and all safety bolt devices; S300, use the sensor integration to collect data characterizing the state of the bolt assembly; use the host computer to display the states of all bolt assemblies and send instructions; use the control module to receive and process the data characterizing the state of the bolt assembly, and according to the instructions of the host computer and / or the control system, control the action of the cylinder assembly to drive the bolt assembly to move out of or into the mounting base to the required state, so as to support and limit the device on the limit operation plane when moving out in place, and give way to the device when moving in place.

9. The method of using a safety bolt system according to claim 8, characterized in that, The control system instructions include that the device switches to the jog mode or the fine-tuning mode, and the device returns to the top dead center.

10. The method of using a safety plug system according to claim 8, characterized in that, When the bolt assembly moves out in place, a part of the bolt assembly is limited in the mounting base, and effective support for the bolt assembly by the mounting base is satisfied.

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