A lock unlocking force detection device

Abstract

This utility model proposes a lock unlocking force testing device, including a turntable and a testing platform. The turntable includes a fixed inner plate and a movable outer plate. A testing station is provided on the movable outer plate, and a testing fixture is installed at the testing station. A testing frame is set between the fixed inner plate and the testing platform. A testing component is set below the crossbeam of the testing frame. The testing component includes an electric cylinder drive device, an unlocking tension sensing device, an unlocking pin transmission device, a pressing device, and a connector for connecting the device. This utility model solves the pain points of low efficiency, poor adaptability, and large data errors in traditional lock testing through modular and adjustable structural design, and is particularly suitable for mass production quality inspection scenarios of high-precision locks.

Description

Technical Field

[0001] This utility model proposes a lock unlocking force testing device, which belongs to the field of precision lock testing. Background Technology

[0002] Currently, traditional tensile testing equipment is mostly used for testing the unlocking force of locks, with manual, sequential testing. However, for longer locks such as bar locks, this method often suffers from inconvenience, low accuracy, and insufficient automation. Traditional tensile testing equipment cannot guarantee consistent testing conditions and environments during lock testing, and the test results are prone to significant deviations due to human error and equipment malfunctions. This fails to meet the high-precision testing requirements of precision locks. Furthermore, the length and weight of the lock also affect the efficiency of manual testing. Therefore, a high-precision, automated lock locking force testing device is needed to meet the stringent requirements of precision locks in research and development, production, and quality inspection. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model proposes a lock unlocking force detection device, the technical features of which are as follows:

[0004] A lock unlocking force detection device includes a turntable and a detection platform. The turntable includes a fixed inner plate and a movable outer plate. A detection station is provided on the movable outer plate, and a detection fixture is installed at the detection station. A detection frame is provided between the fixed inner plate and the detection platform. A detection component is provided below the crossbeam of the detection frame. The detection component includes an electric cylinder drive device, an unlocking tension sensing device, an unlocking pin drive device, a clamping device, and a connector for connecting the device. A clamping device is fixedly installed below the crossbeam of the detection frame near the turntable. A connecting column is fixedly installed below the crossbeam of the detection frame. An electric cylinder drive device is provided on the outer side below the connecting column. A slide rail is fixedly connected below the connecting column. The unlocking tension sensing device and the unlocking pin drive device are respectively connected to the slide rail.

[0005] Preferably, the electric cylinder drive device includes a first connecting block fixed to the outer side of the connecting column near the slide rail, and an unlocking and tightening electric cylinder is fixed below the first connecting block.

[0006] Preferably, the unlocking tension sensing device includes a first slider movably connected to the slide rail, a first fixing block below the first slider, a second connecting block below the first fixing block near one end of the unlocking tension electric cylinder, the second connecting block having a groove matching the end of the telescopic rod of the unlocking tension electric cylinder, a third connecting block below the other end of the first fixing block, and an unlocking tension sensor on the outside of the third connecting block.

[0007] Preferably, the unlocking pin transmission device includes a second slider movably connected to the slide rail, a second fixed block below the second slider, a fourth connecting block below the second fixed block, a groove on the fourth connecting block near the unlocking tension sensor, the groove matching the end of the telescopic rod of the unlocking tension sensor, a lock cylinder cylinder fixed to the other end of the fourth connecting block by two fixed rods, an unlocking pin at the end of the lock cylinder cylinder, a shaft hole below the lock cylinder cylinder on the fourth connecting block, a pin in the shaft hole, and the unlocking pin being limited in the pin.

[0008] Preferably, the clamping device includes a right-angle frame installed at one end of the detection frame beam, a product clamping cylinder installed on the right-angle frame, and a clamping component installed at the end of the product clamping cylinder.

[0009] Preferably, the turntable, testing table, and testing frame have pre-drilled mounting holes, and the testing component parts have connection holes for fixing.

[0010] Preferably, the testing frame is provided with a fixing adjustment device that matches the mounting hole, and the fixing adjustment device is provided with a horizontal adjustment shaft.

[0011] Preferably, all detection components are connected to a PLC control device.

[0012] Preferably, the movable outer plate has 6 to 10 testing stations.

[0013] The beneficial effects of this utility model are as follows:

[0014] The electric cylinder drive device can precisely control the applied unlocking force, and together with the unlocking tension sensing device, it can monitor the force value change in real time, ensuring that the unlocking force output by the unlocking pin transmission device is accurate and reliable, avoiding the error of manual measurement.

[0015] The product clamping cylinder is fixed to the testing frame by a right-angle bracket. The clamping part at the end can firmly fix the lock, avoid errors caused by product loosening during the testing process, and improve the accuracy of the test.

[0016] The testing frame, turntable, and other components have pre-drilled mounting holes. Together with the horizontal adjustment shaft of the fixing and adjusting device, the position of the testing components can be adjusted according to different specifications of lock products, enhancing the versatility of the device and adapting to the testing needs of various lock models.

[0017] The PLC control device integrates the actions of various components to automate the entire process of force application, detection, and data recording, thereby improving detection accuracy and consistency and achieving automated closed-loop control.

[0018] The movable outer plate is equipped with 6 to 10 inspection stations, which can load multiple lock products at the same time. The inspection is completed sequentially by rotating the turntable, which greatly improves the inspection efficiency per unit time and realizes batch quality inspection on the production line.

[0019] By working together, the various parts of the testing device overcome the technical limitations of traditional lock testing in terms of accuracy, efficiency, and compatibility. It is especially suitable for online quality inspection and quality control of locks, and can effectively improve product qualification rate and production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the detection component of this utility model. Figure 1 .

[0023] Figure 4 This is a schematic diagram of the detection component of this utility model. Figure 2 .

[0024] Figure 5 This is a schematic diagram of the fixed adjustment device of this utility model.

[0025] Among them, 1 is a turntable; 2 is a testing table; 3 is a testing frame; 5 is a connecting column; 6 is a slide rail; 7 is a right-angle frame; 11 is a fixed inner plate; 12 is a movable outer plate; 13 is a testing station; 14 is a testing fixture; 23 is a fixed adjustment device; 24 is an adjustment shaft; 31 is a first connecting block; 32 is a first slider; 33 is a second slider; 34 is a first fixed block; 35 is a second fixed block; 36 is a second connecting block; 37 is a third connecting block; 38 is a fourth connecting block; 41 is an unlocking tension cylinder; 42 is an unlocking tension sensor; 43 is a lock core pin cylinder; 44 is an unlocking pin shaft; 45 is a pin; 46 is a fixing rod; 47 is a product pressing cylinder; and 48 is a pressing component. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to the embodiments.

[0027] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and "vertical" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, in the description of this utility model, unless otherwise stated, "multiple", "multiple groups", and "multiple roots" mean two or more.

[0030] Unless otherwise specified, the materials, instruments and methods used in the following embodiments are all conventional materials, instruments and methods in the art and can be obtained through commercial channels.

[0031] Example 1

[0032] like Figure 1 Figure 2 As shown, the device consists of a turntable 1, a testing platform 2, and a testing frame 3 forming the main frame. The turntable 1 adopts a split structure, with a fixed inner plate 11 rigidly connected to the testing frame 3, and a movable outer plate 12 that can rotate independently. Six to ten testing stations 13, preferably eight, are evenly distributed on the turntable 13. The testing stations are located below the testing frame, and each station is equipped with a replaceable testing fixture 14, adaptable to different specifications of locks. The testing frame 3 spans the turntable 1 and is fixed to the testing platform 2. Testing components 4 are integrated below its crossbeam, and modular assembly is achieved through connecting columns 5 and slide rails 6. The split turntable design allows for individual disassembly and maintenance of the movable outer plate 12. Furthermore, the multi-station layout enables continuous testing, improving efficiency by more than 40%.

[0033] The detection component 4 uses a modular design, including a clamping device, an electric cylinder drive device, an unlocking force sensing device, an unlocking pin transmission device, and a clamping device. Through the unlocking force transmission path of the electric cylinder, sensor, and pin, a linear force chain is formed to ensure data authenticity and improve detection efficiency.

[0034] The detection components (electric cylinder, air cylinder, sensor) are all connected to the PLC control device. The entire process is automated through the PLC control device using existing technology, and the single lock detection cycle is ≤23 seconds.

[0035] Example 2

[0036] like Figure 3 , Figure 4As shown, a connecting column 5 is fixed below the crossbeam of the detection frame 3. An electric cylinder drive device is installed on the outer side below the connecting column 5. A slide rail 6 is fixedly connected below the connecting column 5. The slide rail 6 is equipped with double sliders. An unlocking tension sensing device and an unlocking pin transmission device are respectively connected to the sliders. The double slider design on the slide rail 6 allows the sensing device and the pin transmission device to be adjusted independently to adapt to locks of different sizes, making the force transmission path linear and improving the reliability of the detection data.

[0037] A clamping device is provided below the crossbeam of the testing frame 3. The clamping device is located on the side of the crossbeam of the testing frame 3 near the turntable. The product clamping cylinder 47 is fixed by the right angle bracket 7. An adjustable clamping part 48 is installed at the end of the cylinder. Its function is to press down the lock housing before testing, eliminate the assembly gap, and avoid the movement of the lock to be tested, which will cause measurement interference.

[0038] The electric cylinder drive device includes a first connecting block 31 fixed on the outer side below the connecting column 5, and an unlocking tension electric cylinder 41 fixed below the first connecting block. The axis of the telescopic rod of the unlocking tension electric cylinder 41 is parallel to the slide rail 6. The electric cylinder drive device can provide an adjustable thrust of 0-500N. In this embodiment, the unlocking force is set to 20 to 30N. Unlocking is considered to be qualified when the unlocking is achieved with this unlocking force.

[0039] The unlocking tension sensing device includes a first slider 32 movably fixed on a slide rail 6. A second connecting block 36 and a third connecting block 37 are connected below the first slider 32 via a first fixing block 34. The groove of the second connecting block 36 engages with the telescopic rod of the unlocking tension electric cylinder 41. An unlocking tension sensor 42 (such as a strain gauge force sensor) is mounted on the outside of the third connecting block 37. The thrust of the unlocking tension electric cylinder is directly transmitted to the sensor via the second connecting block 36, eliminating lateral force interference and reducing measurement error to less than 1%.

[0040] The unlocking pin drive device includes a second slider 33 movably fixed on the slide rail 6, located closer to the turntable. The second slider 33 is connected to a fourth connecting block 38 via a second fixing block 35. The fourth connecting block has a groove at one end near the unlocking force sensor, which matches the telescopic rod of the unlocking force sensor 42. A lock cylinder pin cylinder 43 is mounted at the other end via two fixing rods 46. An unlocking pin 44 is located at the end of the lock cylinder pin cylinder 43. The fourth connecting block 38 has a shaft hole below the lock cylinder pin cylinder, in which a pin 45 is installed. The unlocking pin 44 is limited within the pin 45 and is driven by the lock cylinder pin cylinder, limiting its vertical movement within the shaft hole of the pin 45. The coaxiality of the pin and the lock cylinder is adjustable to accommodate different lock hole angles; the pin 45 prevents pin misalignment and extends service life.

[0041] Example 3, as Figure 1-4As shown, the turntable 1, testing table 2, and testing frame 3 have pre-drilled standardized mounting holes, and each component of the testing assembly has connection holes. Figure 5 As shown, a fixing adjustment device 23 is added to the bottom of the detection frame 3, which can be finely adjusted by the horizontal adjustment shaft 24. The setting of mounting holes and connecting holes allows for quick replacement of fixtures or maintenance parts, and the fixing adjustment device can adjust and compensate for equipment tolerances to ensure accurate alignment of the detection components and the lock.

[0042] The testing process for this utility model device is as follows:

[0043] 1. The rotary table rotates to the position below the inspection component;

[0044] 2. The product clamping cylinder descends to fix the lock to be tested;

[0045] 3. The cylinder lowers the lock cylinder pin, inserting the unlocking pin into the lock hole;

[0046] 4. Gradually apply force to the unlocking tension cylinder. Based on the feedback data from the unlocking tension sensor, ensure that the unlocking force output range is between 20 and 30N. If the lock unlocks within this range, it is considered qualified; otherwise, it is not qualified. Afterward, the product's pressing cylinder, lock cylinder pin cylinder, and unlocking tension cylinder will reset.

[0047] 5. The turntable rotates, and the above detection process is repeated to detect other undetected items.

[0048] This invention does not improve any software programs or methods. This invention only designs the structure of the detection device. The methods or software programs involved in the debugging and control of the PLC control device and sensors are all based on existing methods or software program design books, manuals or product manuals by those skilled in the art, combined with the functions involved in the principles and effects of this invention, and can be implemented by writing their own programs.

[0049] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A lock unlocking force testing device, comprising a turntable (1) and a testing platform (2), characterized in that, The turntable includes a fixed inner plate (11) and a movable outer plate (12). The movable outer plate (12) is provided with a detection station (13). A detection fixture (14) is installed at the detection station (13). A detection frame (3) is provided between the fixed inner plate (11) and the detection table (2). A detection component (4) is provided below the crossbeam of the detection frame (3). The detection component (4) includes an electric cylinder drive device, an unlocking tension sensing device, an unlocking pin transmission device, a clamping device, and a connector for connecting the device. A clamping device is fixed near the turntable side below the crossbeam of the detection frame (3). A connecting column (5) is fixed below the crossbeam of the detection frame (3). An electric cylinder drive device is provided on the outer side below the connecting column (5). A slide rail (6) is fixedly connected below the connecting column (5). An unlocking tension sensing device and an unlocking pin transmission device are respectively connected on the slide rail (6).

2. The lock unlocking force detection device according to claim 1, characterized in that, The electric cylinder drive device includes a first connecting block (31) fixed on the outer side of the connecting column (5) near the slide rail, and an unlocking clamping electric cylinder (41) is fixed below the first connecting block (31).

3. The lock unlocking force detection device according to claim 2, characterized in that, The unlocking tension sensing device includes a first slider (32) movably connected to a slide rail, a first fixing block (34) below the first slider (32), a second connecting block (36) below the first fixing block (34) near one end of the unlocking tension electric cylinder (41), the second connecting block (36) having a groove matching the end of the telescopic rod of the unlocking tension electric cylinder (41), a third connecting block (37) below the other end of the first fixing block (34), and an unlocking tension sensor (42) on the outside of the third connecting block (37).

4. The lock unlocking force detection device according to claim 3, characterized in that, The unlocking pin transmission device includes a second slider (33) movably connected to the slide rail, a second fixing block (35) below the second slider (33), a fourth connecting block (38) below the second fixing block (35), a groove at one end of the fourth connecting block (38) near the unlocking tension sensor (42) matching the end of the telescopic rod of the unlocking tension sensor (42), and a lock cylinder cylinder (43) fixed at the other end of the fourth connecting block (38) by two fixing rods (46). An unlocking pin (44) is provided at the end of the lock cylinder cylinder (43), and a shaft hole is provided below the lock cylinder cylinder on the fourth connecting block (38). A pin (45) is provided in the shaft hole, and the unlocking pin (44) is limited in the pin (45).

5. The lock unlocking force detection device according to claim 4, characterized in that, The clamping device includes a detection frame (3) with a right-angle frame (7) at one end of the crossbeam. A product clamping cylinder (47) is installed on the right-angle frame, and a clamping component (48) is provided at the end of the product clamping cylinder.

6. The lock unlocking force detection device according to claim 5, characterized in that, The turntable (1), the testing table (2), and the testing frame (3) are provided with mounting holes, and the testing component is provided with connection holes for fixing.

7. The lock unlocking force detection device according to claim 6, characterized in that, The testing frame (3) is provided with a fixing adjustment device (23) that matches the mounting hole at the fixing point, and the fixing adjustment device (23) is provided with a horizontal adjustment shaft (24).

8. A lock unlocking force detection device according to any one of claims 1-7, characterized in that, All the detection components are connected to a PLC control device.

9. The lock unlocking force detection device according to claim 8, characterized in that, The active outer disk (12) has 6-10 testing stations (13).

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