Vibration test tooling and method for a locking device

Abstract

The present invention belongs to the technical field of vibration testing, and particularly relates to a vibration test tooling and method for a locking device. The present invention includes an adapter plate, a vibration tooling table body installed on the adapter plate, a smooth shaft rotatably connected inside the cavity of the vibration tooling table body through a bearing, and a vibration load fixed on the outer side of the smooth shaft; at least one of the upper and lower surfaces of the vibration tooling table body is provided with a mounting groove and a motor groove, and a wide through groove for observation is provided between the vibration tooling table body and the base body of the locking device to be tested. The vibration test tooling and method of the present invention realize the test of the locking device for random vibration in three perpendicular directions of X, Y, and Z. Threaded holes are designed in all three directions to cooperate with the adapter plate for fixation, and mounting grooves for the control board and motor grooves are reserved. In addition, a wide through groove is reserved at the base body of the tooling to facilitate the observation and inspection of the meshing and locking situation of the two gear discs, increasing the convenience of operation.

Description

Technical Field

[0001] The invention belongs to the technical field of vibration testing, and in particular relates to a vibration testing tool and method for a locking device. Background Art

[0002] The locking device is a device for integrated equipment. As a part of the integrated equipment, it is used to achieve mechanical locking between the inertial measurement unit and the inertial unit chassis, realize positioning and locking, and can withstand mechanical environments such as vibration, impact, overload, etc. of corresponding magnitude to ensure reliable locking between the inertial measurement unit and the inertial unit chassis. The locking device includes components such as a base body, a fixed gear plate, and a control board. A pair of meshing gear plates are used as positioning elements. The gear plates are driven to mesh through a transmission mechanism to achieve mechanical locking between the inertial measurement unit and the inertial unit chassis.

[0003] The vibration tooling is a process equipment designed specifically for this locking device. It uses a vibration load, optical axis, bearing seat, bearing, and plug structure to simulate the inertial measurement unit and the inertial group chassis. The locking device can be locked and unlocked on the tooling through the control system. The locking device has a self-locking function. The tooling and the locking device are installed as a whole on a vibration workbench and subjected to random vibration in the locked state. The vibration spectrum is observed according to the test outline requirements to see whether the vibration levels at different frequencies can meet the outline requirements.

[0004] At present, it is difficult for existing vibration test tools to realize random vibration tests on locking devices in the three directions of X, Y, and Z. Summary of the invention

[0005] The purpose of the present invention is to provide a vibration test tool and method for a locking device that can simulate the environment of an inertial measurement unit and an inertial unit chassis and complete the locking and unlocking of a random vibration test of the locking device in three directions.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A vibration test fixture for a locking device comprises an adapter plate, a vibration fixture table body mounted on the adapter plate, an optical axis rotatably connected to the inside of a cavity of the vibration fixture table body via a bearing, and a vibration load fixed to the outside of the optical axis; at least one of the upper and lower surfaces of the vibration fixture table body is provided with an installation groove and a motor groove, and a wide through groove for observation is provided between the vibration fixture table body and a base body of the locking device to be tested.

[0008] Furthermore, the upper and lower surfaces of the vibration tooling table are both provided with installation grooves and motor grooves.

[0009] Furthermore, the width of the wide through groove is 20 mm.

[0010] Furthermore, a bearing seat is installed on one side of the vibration tooling body at a position corresponding to the optical axis, and a plug is installed on the other side thereof.

[0011] Furthermore, the vibration tooling table body is provided with a plurality of threaded holes connected to the locking device to be tested.

[0012] The vibration test method of the locking device comprises the following steps:

[0013] S1, roughly fix the fixed toothed disc of the locking device on the vibration load so that the fixed toothed disc can swing slightly;

[0014] S2, roughly fix the base body of the locking device on the vibration tooling table body so that the base body can swing slightly;

[0015] S3, fix the control board of the locking device in the installation groove, connect the mechanical system of the locking device and the control board, and connect the power supply and computer, power on the locking device, and use the upper computer program to lock the upper and lower gear plates;

[0016] S4, after confirming that the locking state gear disc is engaged properly, power on to unlock the gear disc, remove the base body, and tighten the screws on the fixed gear disc. During this process, press the gear disc to prevent the gear disc from moving;

[0017] S5, install the base body, fix it roughly with screws, lock the gear plate again, and adjust the position of the gear plate; tighten the screws, lock and unlock again, and confirm that the gear plate is accurately engaged;

[0018] S6, fix the adapter plate on the vibration table, fix the installed tooling and locking device on the adapter plate, then disconnect the serial port line, and perform random vibration on the tooling and locking device as a whole;

[0019] S7, after the vibration ends, power is turned on, and the unlocking and locking commands are executed on the locking device. The upper computer software is used to check whether the locking and unlocking time meet the outline requirements, and the current of the corresponding process is recorded. At the same time, it is confirmed whether the fixing of the locking device and the vibration tooling table is loose, and a vibration test is completed.

[0020] Furthermore, in the above S3, the vibration load is adjusted to keep the fixed toothed disc in a vertical position, and the meshing condition of the toothed disc is observed from the wide through slot to ensure that each tooth is closely and uniformly meshed without any large gap.

[0021] Furthermore, the serial port line in the above S6 is a connection line between the locking device and the control board and the power supply, which is connected to the power supply. The serial port line is connected to the control board before power-on locking and unlocking, and the serial port line is disconnected from the control board before testing.

[0022] The beneficial effects of the vibration test tool and method of a locking device of the present invention are:

[0023] 1. The tooling and method of the present invention realize the random vibration test of the locking device in three vertical directions of X, Y, and Z. Screw holes are designed in the three directions to cooperate with the adapter plate for fixing, and control board installation grooves and motor grooves are reserved. In addition, a wide through groove is reserved in the tooling at the base body to facilitate observation and inspection of the meshing and locking conditions of the two gear discs, thereby increasing the convenience of operation.

[0024] 2. The present invention is highly practical, convenient and easy to install. Based on the simulated vibration load, two locking devices can be installed at the same time to improve the test efficiency, and can be reliably fixed to the vibration table to ensure safety. The operation is simple and easy to implement, can effectively simulate the inertial group, has a certain rigidity, and can withstand a certain magnitude of vibration. It does not require high precision of parts and mechanical processing, and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 is a schematic structural diagram of a locking device according to an embodiment of the present invention;

[0027] Figure 2 is a schematic diagram of the installation of the vibration tooling and the locking device of an embodiment of the present invention;

[0028] Figure 3 yes Figure 2 A cross-sectional view of

[0029] Figure 4 4 is a flow chart of a vibration test method according to an embodiment of the present invention.

[0030] In the figure: 1. locking device, 11. fixed gear plate, 12. base body, 13. control board, 2. adapter plate, 3. vibration tooling table body, 4. optical axis, 5. vibration load, 6. installation groove, 7. motor groove, 8. wide through groove, 9. bearing, 10. bearing seat, 20. plug. DETAILED DESCRIPTION

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0032] like Figure 1-Figure 4The specific embodiment of the vibration test tool and method of a locking device of the present invention shown in the figure comprises an adapter plate 2, a vibration tool body 3 mounted on the adapter plate 2, an optical axis 4 rotatably connected to the cavity of the vibration tool body 3 through a bearing 9, and a vibration load 5 fixed to the outside of the optical axis 4; at least one of the upper and lower surfaces of the vibration tool body 3 is provided with a mounting groove 6 and a motor groove 7, and a wide through groove 8 for observation is provided between the vibration tool body 3 and the base body 12 of the locking device 1 to be tested. In the embodiment of the present invention, the upper and lower surfaces of the vibration tool body 3 are provided with mounting grooves 6 and motor grooves 7, and vibration tests can be performed on two locking devices 1 at the same time, thereby improving the test efficiency.

[0033] like Figure 2 The width of the wide through slot 8 shown is 20 mm, and a bearing seat 10 is installed on one side of the vibration tooling body 3 at a position corresponding to the optical axis 4, and a plug 20 is installed on the other side. One end of the optical axis 4 is mounted on the vibration tooling body 3 through the bearing seat 10, and the plug 20 is used to seal the vibration tooling body 3 corresponding to the other end. In the embodiment of the present invention, a plurality of threaded holes connected to the locking device 1 to be tested are provided on the vibration tooling body 3. Threaded holes are provided on the fixed toothed disc 11, the base body 12 and the control board 13 of the locking device 1, and threaded holes corresponding to the threaded holes on the fixed toothed disc 11 are also provided on the vibration load 5, threaded holes corresponding to the threaded holes on the base body 12 are provided on the vibration tooling body 3, and threaded holes corresponding to the threaded holes on the control board 13 are provided on the upper and lower surfaces of the vibration tooling body 3. The vibration load 5 and the fixed toothed disc 11 , the vibration tooling platform body 3 and the base body 12 , and the control panel 13 and the upper and lower surfaces of the vibration tooling platform body 3 are all connected by hexagonal screws.

[0034] The plug 20 and the bearing seat 10 are fixed to the vibration tooling table body 3 by 6 hexagon socket cylindrical head screws respectively. In addition, the two ends of the optical axis 4 are installed in the deep groove ball bearings 9 to achieve interference fit. The vibration load 5 and the optical axis 4 can rotate 360° through the bearings 9. The fixed toothed disc 11 of the locking device 1 is fixed to the upper and lower positions of the vibration load 5 by 4 hexagon socket cylindrical head screws. When in the vertical position, the lifting toothed disc of the locking device 1 is controlled to engage with the fixed toothed disc 11 to achieve reliable locking of the simulated vibration load 5.

[0035] The adapter plate 2 is fixed to the vibration tooling table body 3 and tightly fixed to the vibration table surface, and the locking device 1 is installed on the upper and lower surfaces of the tooling table body. By adjusting the direction of the tooling system, vibrations in three vertical directions, X, Y, and Z, can be achieved. The vibration tooling table body is connected to the workbench for vibration test through the adapter plate. The adapter plate and the vibration tooling table body are provided with corresponding holes for connection in the three directions of X, Y, and Z. The workbench for vibration experiment is a prior art and will not be described in detail here.

[0036] The vibration test method of the vibration test tool using the locking device 1 in the embodiment of the present invention includes the following steps:

[0037] S1. First install the locking device 1, place the fixed toothed disc 11 of the locking device 1 on the vibration load 5, align the four countersunk holes of the fixed toothed disc 11 with the matching threaded holes on the vibration load 5, and roughly fix it with hexagon socket head screws so that the fixed toothed disc 11 can swing slightly.

[0038] S2. Install the base body 12 of the locking device 1 at the corresponding position of the tooling, align the four through holes on the base body 12 with the matching threaded holes on the tooling table, and roughly fix it with hexagon socket head screws so that the base body 12 can swing slightly.

[0039] S3. Fix the control board 13 of the locking device 1 to the tooling groove with four slotted pan head screws and washers, connect the mechanical system of the locking device 1 and the control board 13, and connect the power supply and computer, power on the locking device 1, and use the upper computer program to lock the upper and lower gear plates. Pay attention to moving the vibration load 5 to keep the fixed gear plate 11 in the vertical position, observe the meshing of the gear plates from the notch, and require that each tooth meshes tightly and uniformly without large gaps.

[0040] S4. After confirming that the locking state of the gear disc is qualified, power on to unlock the gear disc, remove the base body 12, and tighten the screws on the fixed gear disc 11. During this process, pay attention to press the gear disc to prevent the gear disc from moving.

[0041] S5. Install the base body 12, install the screws to fix it roughly, lock the gear plate again, adjust the position of the gear plate, and tighten the screws again. Finally, lock and unlock it once to confirm that the gear plate is correctly engaged.

[0042] According to the above steps S1-S5, the locking device 1 on the other side of the vibration tooling platform is installed in place.

[0043] S6, fix the adapter plate 2 on the vibration table, place the installed tooling and locking device 1 on the adapter plate 2, and fix them with hexagon socket head screws. Then disconnect the serial port line, and perform random vibration on the tooling and locking device 1 as a whole.

[0044] The serial port line is the connection line between the locking device 1 and the control board 13 and the power supply, and is connected to the power supply. The serial port line must be connected to the control board 13 before powering on to lock or unlock, and must be disconnected before testing.

[0045] S7. After each vibration, power must be turned on to execute unlocking and locking commands on the locking device 1. The host computer software is used to check whether the locking and unlocking time meets the outline requirements, and the current of the corresponding process is recorded. At the same time, it is confirmed whether the fixing screws of the locking device 1 and the vibration tooling platform 3 are loose. A vibration test is completed.

[0046] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A vibration test method for a vibration test tool for a locking device, Features: The vibration test fixture comprises an adapter plate, a vibration fixture body mounted on the adapter plate, an optical axis rotatably connected to the cavity of the vibration fixture body through a bearing, and a vibration load fixed to the outside of the optical axis; at least one of the upper and lower surfaces of the vibration fixture body is provided with a mounting groove and a motor groove, and a wide through groove for observation is provided between the vibration fixture body and the base body of the locking device to be tested; A bearing seat is installed on one side of the vibration tooling body corresponding to the optical axis, and a plug is installed on the other side thereof; Vibration test method of the vibration test tool The following steps are involved: S1, roughly fix the fixed toothed disc of the locking device on the vibration load so that the fixed toothed disc can swing slightly; S2, roughly fix the base body of the locking device on the vibration tooling table body so that the base body can swing slightly; S3, fix the control board of the locking device in the installation groove, connect the mechanical system of the locking device and the control board, and connect the power supply and the computer, power on the locking device, and use the upper computer program to lock the upper and lower gear plates; S4, after confirming that the upper and lower gears are meshed properly in the locked state, power on to unlock the upper and lower gears, remove the base body, and tighten the screws on the fixed gear. During this process, pay attention to press the fixed gear to prevent the fixed gear from moving; S5, install the base body, fix it roughly with screws, lock the upper and lower gear plates again, and adjust the positions of the upper and lower gear plates; tighten the screws on the gear plates, lock and unlock them again, and confirm that the upper and lower gear plates are accurately engaged; S6, fix the adapter plate on the vibration table, fix the installed vibration tooling body and the locking device on the adapter plate, then disconnect the serial port line, and perform random vibration on the vibration tooling body and the locking device as a whole; S7, after the vibration is finished, power is turned on, and the unlocking and locking commands are executed on the locking device. The upper computer software is used to check whether the locking and unlocking time meets the outline requirements, and the current of the corresponding process is recorded. At the same time, it is confirmed whether the fixing of the locking device and the vibration tooling table is loose, and a vibration test is completed; The serial port line in the above S6 is the connection line between the locking device and the control board and the power supply. The serial port line is connected to the control board before power-on locking and unlocking, and the serial port line is disconnected from the control board before testing.

2. The vibration test method according to claim 1, Features: The upper and lower surfaces of the vibration tooling table are both provided with installation grooves and motor grooves.

3. The vibration test method according to claim 1, Features: The width of the wide through slot is 20 mm.

4. The vibration test method according to claim 1, Features: The vibration tooling platform is provided with a plurality of threaded holes connected with the locking device.

5. The vibration test method according to claim 1, Features: In the above S3, the vibration load is adjusted to keep the fixed toothed disc in a vertical position, and the meshing of the upper and lower toothed discs is observed from the wide through slot to ensure that each tooth is closely and uniformly meshed without large gaps.

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