A plug-in force and closing force test detection device

Abstract

The utility model discloses a kind of plug-in force closing force test detection devices, including rack, plug-in force test execution mechanism, lock key clamp, plug-in force lock, closing force test execution mechanism, lock bolt clamp, closing force lock, lock clamping mechanism and man-machine interface;The plug-in force lock and closing force lock are fixed in the rack respectively by corresponding lock clamping mechanism.

Description

Technical Field

[0001] This utility model relates to the field of lock testing technology, specifically to a device for testing insertion and extraction force and closing force. Background Technology

[0002] In existing technologies, the testing of performance parameters such as insertion and extraction forces and closing forces of locks generally employs semi-automated or purely manual testing methods. This approach typically relies on an operator holding a force measuring device (such as a thrust gauge) and using a positioning fixture to manually apply force to simulate the insertion and extraction of the key and lock cylinder, or to simulate the compression stroke of the bolt, thereby completing a qualitative or quantitative assessment of the aforementioned mechanical properties. However, this existing technological approach has the following inherent drawbacks, making it difficult to meet the stringent requirements of high-efficiency testing in terms of accuracy, efficiency, and reliability:

[0003] (1) Poor test accuracy and consistency: Because the force application process (including the direction, rate, and stability of the force) is highly dependent on the operator's subjective experience and operating techniques, the test conditions are difficult to reproduce. At the same time, force value acquisition relies on the operator's visual interpretation of analog instruments (such as dial-type thrust gauges), introducing significant reading errors and human interference. Therefore, the test results have large dispersion, poor repeatability and reproducibility, and cannot provide high-confidence data support for the quality control of locks.

[0004] (2) Low testing efficiency and low degree of automation: The entire testing process involves multiple sequential steps such as manual clamping, manual alignment, force application, data reading and manual recording. The operation is cumbersome and time-consuming, which seriously restricts the testing efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention aims to provide a device for testing insertion and extraction force and closing force.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An insertion / extraction force and closing force testing device includes a frame, an insertion / extraction force testing actuator, a lock key clamp, an insertion / extraction force lock, a closing force testing actuator, a lock tongue clamp, a closing force lock, a lock clamping mechanism, and a human-machine interface; the insertion / extraction force lock and the closing force lock are respectively fixed to the frame through corresponding lock clamping mechanisms;

[0008] Both the insertion / extraction force test actuator and the closing force test actuator include an up / down adjustment mechanism, a force sensor, a movable main support, a transmission rack, a slide rail, a slider, a transmission gear, a driving synchronous pulley, a driven synchronous pulley, a transmission synchronous belt, and a servo motor. The force sensor is connected to the up / down adjustment mechanism and is driven to move up and down by the adjustment mechanism. The up / down adjustment mechanism is fixedly connected to the movable main support. The output shaft of the servo motor is coaxially fixed with the driving synchronous pulley. The driving synchronous pulley and the driven synchronous pulley are connected by a transmission synchronous belt. The driven synchronous pulley and the transmission gear are coaxially fixed and can drive the transmission gear to rotate axially. The transmission rack is horizontally arranged in the front-to-back direction and meshes with the transmission gear. The slide rail is parallel to the transmission rack, and the slider is slidably mounted on the slide rail. The movable main support is fixedly connected to the slider and the transmission rack respectively. The servo motor is equipped with an encoder.

[0009] In the insertion and extraction force test actuator, the outer side of the force sensor is fixedly connected to the lock key clamp; in the closing force test actuator, the outer side of the force sensor is fixedly connected to the lock tongue clamp.

[0010] The force sensor, servo motor, encoder, and human-machine interface are all connected to the control system.

[0011] Further, the up-and-down adjustment mechanism includes an adjusting screw pair, an up-and-down adjusting support, an upper bracket, a screw limiting sleeve, an up-and-down adjusting slide rail, an up-and-down adjusting slider, and a lower bracket; the adjusting screw pair is axially rotatably connected to the upper bracket; the adjusting screw pair is threadedly engaged with the screw limiting sleeve, and the screw limiting sleeve can move up and down along the adjusting screw pair; the up-and-down adjusting slider is slidably mounted on the up-and-down adjusting slide rail; the up-and-down adjusting slide rail is parallel to the adjusting screw pair, and its upper and lower ends are respectively fixed to the upper bracket and the lower bracket; the up-and-down adjusting support is fixedly connected to the up-and-down adjusting slider and the screw limiting sleeve respectively, and the force sensor is fixed to the up-and-down adjusting support; the lower bracket is fixedly connected to the movable main support.

[0012] Furthermore, the insertion / extraction force and closing force testing device also includes an insertion / extraction force camera system and a closing force camera system; the frame is provided with an upright support, and the insertion / extraction force camera system and the closing force camera system are located on the upper part of the upright support. The insertion / extraction force camera system is used to photograph the insertion / extraction force test actuator and the insertion / extraction force lock, and the closing force camera system is used to photograph the closing force test actuator and the closing force lock.

[0013] Furthermore, both the insertion / extraction force camera system and the closing force camera system consist of a bullet camera, a camera adjustment bracket, and a camera system bracket; the camera adjustment bracket includes a universal bracket and a telescopic rod, the universal bracket is fixed to the front end of the telescopic rod, the bullet camera is mounted on the universal bracket and can rotate on the universal bracket; the rear end of the telescopic rod is fixed to the upright bracket through the camera system bracket.

[0014] Furthermore, the control system employs a programmable logic controller (PLC), which has a high-speed pulse output, a high-speed pulse input, a 16-bit analog-to-digital converter (ADC), and I / O ports. The servo motor is connected to the high-speed pulse output of the PLC, and the encoder is connected to the high-speed pulse input of the PLC. The human-machine interface is connected to the PLC via I / O ports, and the force sensor is connected to the PLC via a 16-bit ADC.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Improved Testing Precision and Accuracy: This invention employs a servo motor-driven automated actuator, completely replacing traditional manual or pneumatic testing methods, fundamentally eliminating subjective errors caused by inconsistent operator technique, speed, and force. Combined with a force sensor, it enables real-time acquisition of force changes during the testing process. This ensures accurate and complete test results.

[0017] 2. Improved repeatability and reproducibility of test results: This invention utilizes automated insertion / extraction force and closure force testing mechanisms, resulting in significantly lower repeatability deviations compared to manual operation. This means that almost identical results can be obtained from different times and by different operators, fully meeting the stringent requirements of quality inspection for data reliability.

[0018] 3. With this utility model, operators only need to clamp the lock and key and pre-set the test parameters to achieve fully automatic testing, which can greatly improve testing efficiency and automation.

[0019] This invention not only solves the fundamental problem of inaccurate and unreliable test data in existing technologies, but also achieves a qualitative leap in testing efficiency, providing strong technical support for the standardized inspection and quality control of lock insertion and extraction forces and closing forces. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall insertion / extraction force and closure force testing device in this utility model embodiment;

[0021] Figure 2 This is a schematic diagram of the insertion and extraction force test actuator in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the closing force test actuator in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure of the movable main support, transmission rack, slide rail, slider, and transmission gear in an embodiment of this utility model.

[0024] Figure 5 This is a schematic diagram of the rear structure of the upper and lower adjustment mechanism in an embodiment of this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. It should be noted that this embodiment is based on the present technical solution and provides detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to this embodiment.

[0026] This embodiment provides a device for testing insertion / extraction force and closure force, such as... Figure 1-3 As shown, it includes a frame 1, an insertion / extraction force test actuator 6, a lock key clamp 4, an insertion / extraction force lock 2, a closing force test actuator 9, a lock tongue clamp 10, a closing force lock 12, a lock clamping mechanism 13, and a human-machine interface 7; the insertion / extraction force lock 2 and the closing force lock 12 are respectively fixed to the frame 1 by the corresponding lock clamping mechanism 13.

[0027] like Figure 2 , 3 As shown in Figure 4, both the insertion / extraction force test actuator 6 and the closing force test actuator 9 include an up / down adjustment mechanism, a force sensor 102, a movable main support 103, a transmission rack 104, a slide rail 105, a slider 106, a transmission gear 107, a driving synchronous pulley 108, a driven synchronous pulley 109, a transmission synchronous belt 110, and a servo motor 111. The force sensor 102 is connected to the up / down adjustment mechanism and is driven to move up and down by the up / down adjustment mechanism. The up / down adjustment mechanism is fixedly connected to the movable main support 103. The output shaft of the servo motor 111 is coaxial with the driving synchronous pulley 108. The active synchronous pulley 108 and the driven synchronous pulley 109 are fixedly connected by a transmission synchronous belt 110. The driven synchronous pulley 109 and the transmission gear 107 are coaxially fixed and can drive the transmission gear 107 to rotate axially. The transmission rack 104 is horizontally arranged in the front-back direction and meshes with the transmission gear 107. The slide rail 105 is parallel to the transmission rack 104, and the slider 106 is slidably mounted on the slide rail 105. The movable main support 103 is fixedly connected to the slider 106 and the transmission rack 104 respectively. The servo motor 111 is equipped with an encoder.

[0028] In the insertion and extraction force test actuator 6, the outer side of the force sensor 102 is fixedly connected to the lock key clamp 4; in the closing force test actuator 9, the outer side of the force sensor 102 is fixedly connected to the lock tongue clamp 10.

[0029] The force sensor 102, servo motor 111, encoder and human-machine interface 7 are all connected to the control system.

[0030] The height of the force sensor 102, along with the key clamp 4 and bolt clamp 10, can be adjusted via an up-and-down adjustment mechanism to align the key / bolt with the lock 2 to be tested for insertion / extraction force and the lock 12 for closing force. After alignment, the servo motor 111 drives the active synchronous pulley 108 to rotate. The active synchronous pulley 108 drives the driven synchronous pulley 109 to rotate via the transmission synchronous belt 110. The driven synchronous pulley 109 further drives the transmission gear 107 to rotate. The transmission gear 107, through meshing with the transmission rack 104, drives the rack 104 to move back and forth, thereby moving the main support 103 back and forth. The insertion / extraction force test execution mechanism 6 automatically inserts and removes the key from the lock 2, completing three insertion / extraction force tests. The closing force test execution mechanism 9 automatically engages the bolt clamp with the oblique bolt of the closing force lock 12, completing three closing force tests. The force sensor 102 can measure the corresponding insertion / extraction force / closing force and transmit it to the control system.

[0031] The control system obtains the rotor position and speed information of the servo motor 111 through the encoder, and controls the operation of the servo motor 111 in a closed loop based on this information, thereby accurately controlling the movement of the lock key / latch clamp 10 and improving the accuracy of detection.

[0032] In this embodiment, as Figure 5 As shown, the up-and-down adjustment mechanism includes an adjusting screw pair 100, an up-and-down adjustment support 101, an upper bracket 112, a screw limiting sleeve 113, an up-and-down adjustment slide rail 114, an up-and-down adjustment slider 115, and a lower bracket 116; the adjusting screw pair 100 is axially rotatably connected to the upper bracket 112; the adjusting screw pair 100 is threadedly engaged with the screw limiting sleeve 113, and the screw limiting sleeve 113 can move up and down along the adjusting screw pair 100; the up-and-down adjustment slider 115... 5 is slidably mounted on the upper and lower adjustment slide rail 114; the upper and lower adjustment slide rail 114 is parallel to the adjustment screw pair 100, and its upper and lower ends are respectively fixed to the upper bracket 112 and the lower bracket 116; the upper and lower adjustment support 101 is fixedly connected to the upper and lower adjustment slider 115 and the screw limit sleeve 113 respectively, and the force sensor 102 is fixed to the upper and lower adjustment support 101; the lower bracket 116 is fixedly connected to the movable main support 103.

[0033] In this embodiment, the servo motor 111 is a high-precision AC servo motor, which has the advantages of high positioning accuracy, fast response and accurate speed.

[0034] In this embodiment, the lock clamping mechanism 13 is a U-shaped groove extending in the left-right direction. The insertion / extraction force lock 2 and the closing force lock 12 are fixed in the corresponding U-shaped groove of the lock clamping mechanism 13 by set screws. Thus, the insertion / extraction force lock 2 / closing force lock 12 can move left and right in the U-shaped groove, and then be fixed by set screws after moving to a suitable position.

[0035] In this embodiment, the insertion / extraction force and closing force test detection device further includes an insertion / extraction force camera system 3 and a closing force camera system 8; the frame 1 is provided with an upright support 15, and the insertion / extraction force camera system 3 and the closing force camera system 8 are located on the upper part of the upright support 15. The insertion / extraction force camera system 3 is used to photograph the insertion / extraction force test actuator 6 and the insertion / extraction force lock 2, and the closing force camera system 8 is used to photograph the closing force test actuator 9 and the closing force lock 12.

[0036] In this embodiment, the frame 1 consists of a metal frame and a top plate. The metal frame is powder-coated and painted, ensuring structural stability and reliability. The top plate is machined from 45# steel, and the insertion / extraction force test actuator 6, lock key clamp 4, insertion / extraction force lock 2, closing force test actuator 9, lock tongue clamp 10, closing force lock 12, lock clamping mechanism 13, etc., are all integrated on the top plate.

[0037] Specifically, both the insertion / extraction force camera system 3 and the closing force camera system 8 consist of a bullet camera, a camera adjustment bracket, and a camera system support 5; the bullet camera is an 8-megapixel, zoom camera. The camera adjustment bracket includes a universal support 11 and a telescopic rod 14. The universal support 11 is fixed to the front end of the telescopic rod 14, and the bullet camera is mounted on the universal support 11 and can rotate on the universal support 11; the rear end of the telescopic rod 14 is fixed to the upright support 15 through the camera system support 5.

[0038] With its universal mount and telescopic mast, the bullet camera allows for adjustments in zoom, rotation, and tilt, enabling the camera to reach an optimal measurement position. The camera system bracket is constructed from aluminum alloy profiles, making it lightweight and sturdy.

[0039] In this embodiment, the control system employs a programmable logic controller (PLC). The PLC has two high-speed pulse outputs, two high-speed pulse inputs, four 16-bit analog-to-digital converters (ADCs), and several I / O ports. The servo motor is connected to the PLC's high-speed pulse outputs, and the encoder is connected to the PLC's high-speed pulse inputs. The human-machine interface (HMI) is connected to the PLC via I / O ports. The force sensor is connected to the PLC via the 16-bit ADCs. The high-speed pulse outputs control the servo motor, the high-speed pulse inputs acquire encoder signals to obtain the servo motor's rotor position and speed information, the I / O ports acquire digital sensor signals and output digital control signals, and the ADCs convert the signal values ​​measured by the force sensor. The PLC is an industrial-grade design, stable, reliable, and has strong anti-interference capabilities.

[0040] The core of the lock insertion / extraction force and closing force test is the position and speed control of the AC servo motor. The control system can accurately and reliably control the servo motor to complete a series of position controls such as absolute positioning, relative positioning, and home return, while the encoder provides position feedback. This position feedback information reveals the real-time position of the key entering and exiting the lock cylinder, or the real-time position of the bolt clamp entering the lock latch.

[0041] The analog signal from the force sensor is amplified, filtered, and then fed into an analog-to-digital converter. The lock insertion and extraction force test involves pushing the key into and out of the lock cylinder, with the force sensor measuring the maximum insertion and extraction forces. The lock closing force test involves the bolt clamp entering the lock latch, with the maximum force measured by the force sensor.

[0042] The programmable logic controller (PLC) converts Modbus RTU protocol data into Modbus TCP protocol data via a serial port server, enabling Ethernet data exchange. The serial port server supports multiple network protocols, such as TCP, UDP, ARP, ICMP, HTTP, DNS, DHCP, SNMP, Telnet, and SSH; it has comprehensive management functions, supporting access control, rapid configuration, and online upgrades; each serial port supports four TCP or UDP session connections, supporting various operating modes including Modbus TCP, TCP Server, TCP Server, TCP Client, UDP Server, and UDP Client; and it supports web access. Additionally, a supporting management and configuration tool allows for immediate network connection of serial devices through simple settings. The network management system has a user-friendly interface and is easy to operate.

[0043] In this embodiment, the human-machine interface uses a color LCD display and a touch screen, and exchanges data with the control system through an RS232 serial port. The communication protocol adopts the industry standard Modbus ASCII communication protocol.

[0044] For those skilled in the art, various corresponding changes and modifications can be made based on the above technical solutions and concepts, and all such changes and modifications should be included within the protection scope of the claims of this utility model.

Claims

1. An insertion force closure force test detection device, characterized by, It includes a frame, an insertion / extraction force test actuator, a lock key clamp, an insertion / extraction force lock, a closing force test actuator, a bolt clamp, a closing force lock, a lock clamping mechanism, and a human-machine interface; the insertion / extraction force lock and the closing force lock are respectively fixed to the frame through corresponding lock clamping mechanisms; Both the insertion / extraction force test actuator and the closing force test actuator include an up / down adjustment mechanism, a force sensor, a movable main support, a transmission rack, a slide rail, a slider, a transmission gear, a driving synchronous pulley, a driven synchronous pulley, a transmission synchronous belt, and a servo motor. The force sensor is connected to the up / down adjustment mechanism and is driven to move up and down by the adjustment mechanism. The up / down adjustment mechanism is fixedly connected to the movable main support. The output shaft of the servo motor is coaxially fixed with the driving synchronous pulley. The driving synchronous pulley and the driven synchronous pulley are connected by a transmission synchronous belt. The driven synchronous pulley and the transmission gear are coaxially fixed and can drive the transmission gear to rotate axially. The transmission rack is horizontally arranged in the front-to-back direction and meshes with the transmission gear. The slide rail is parallel to the transmission rack, and the slider is slidably mounted on the slide rail. The movable main support is fixedly connected to the slider and the transmission rack respectively. The servo motor is equipped with an encoder. In the insertion and extraction force test actuator, the outer side of the force sensor is fixedly connected to the lock key clamp; in the closing force test actuator, the outer side of the force sensor is fixedly connected to the lock tongue clamp. The force sensor, servo motor, encoder, and human-machine interface are all connected to the control system.

2. The plug-in force closure force test detection device according to claim 1, characterized in that The vertical adjustment mechanism includes an adjusting screw pair, a vertical adjustment support, an upper bracket, a screw limiting sleeve, a vertical adjustment slide rail, a vertical adjustment slider, and a lower bracket. The adjusting screw pair is axially rotatably connected to the upper bracket. The adjusting screw pair is threadedly engaged with the screw limiting sleeve, and the screw limiting sleeve can move vertically along the adjusting screw pair. The vertical adjustment slider is slidably mounted on the vertical adjustment slide rail. The vertical adjustment slide rail is parallel to the adjusting screw pair, and its upper and lower ends are respectively fixed to the upper bracket and the lower bracket. The vertical adjustment support is fixedly connected to the vertical adjustment slider and the screw limiting sleeve, respectively. The force sensor is fixed to the vertical adjustment support. The lower bracket is fixedly connected to the movable main support.

3. The insertion force closure force test detection device of claim 1, wherein, It also includes a insertion / extraction force camera system and a closing force camera system; the frame is provided with an upright support, and the insertion / extraction force camera system and the closing force camera system are located on the upper part of the upright support. The insertion / extraction force camera system is used to photograph the insertion / extraction force test actuator and the insertion / extraction force lock, and the closing force camera system is used to photograph the closing force test actuator and the closing force lock.

4. The insertion / extraction force and closure force testing device according to claim 3, characterized in that, Both the insertion / extraction force camera system and the closing force camera system consist of a bullet camera, a camera adjustment bracket, and a camera system bracket. The camera adjustment bracket includes a universal support and a telescopic rod. The universal support is fixed to the front end of the telescopic rod, and the bullet camera is mounted on the universal support and can rotate on the universal support. The rear end of the telescopic rod is fixed to the upright support through the camera system bracket.

5. The insertion / extraction force and closure force testing device according to claim 1, characterized in that, The control system employs a programmable logic controller (PLC), which has a high-speed pulse output, a high-speed pulse input, a 16-bit analog-to-digital converter (ADC), and I / O ports. The servo motor is connected to the high-speed pulse output of the PLC, and the encoder is connected to the high-speed pulse input of the PLC. The human-machine interface is connected to the PLC via I / O ports, and the force sensor is connected to the PLC via a 16-bit ADC.

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