Locking device durability testing device

Abstract

The invention discloses a locking device durability testing device which comprises a rack, and a fixing assembly and a testing assembly are installed at the top end of the rack. The fixing assembly comprises a fixed seat and a movable seat, a first clamping plate is arranged on one side of the fixed seat, and a cantilever beam pressure sensor is installed between the fixed seat and the first clamping plate; a second clamping plate is mounted on the moving seat on one side of the first clamping plate; the testing assembly comprises an XYZ three-axis module, the XYZ three-axis module drives a third support, the third support is provided with a driving assembly, the driving assembly is connected with a chuck through a coupler, and the chuck is provided with a screwdriver. According to the device, the locking device is fixed to the second clamping plate, the groove width is manually set, and an XYZ three-axis module (controlled by a servo motor) is used for moving an inner hexagonal screwdriver to an inner hexagonal screw of the locking device; automatic locking and loosening tests are carried out through a servo motor; the test efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of locking device testing, in particular to a locking device durability testing device. Background Art

[0002] Currently, the electronic application industry uses a large number of PCB integrated modules and 19-inch plug-in boxes. In order to ensure the installation between the PCB daughter board and the mother board, a separate locking device is usually used for the daughter board to prevent the PCB board from falling off from the slot of the plug-in box due to vibration and impact.

[0003] The durability test of the existing locking device is generally performed manually, which is inefficient. Therefore, we propose a locking device durability test device. Summary of the invention

[0004] The object of the present invention is to provide a locking device durability testing device to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a locking device durability test device, comprising a test bench, a fixing assembly and a test assembly are installed on the top of the test bench; the fixing assembly comprises a fixed seat and a movable seat, a first clamping plate is arranged on one side of the fixed seat, a cantilever beam pressure sensor is installed between the fixed seat and the first clamping plate; the movable seat is located on one side of the first clamping plate and a second clamping plate is installed; the test assembly comprises an XYZ three-axis module, the XYZ three-axis module drives a third bracket, the third bracket is installed with a driving assembly, the driving assembly is connected with a chuck via a coupling, and the chuck is installed with a screwdriver.

[0006] Preferably, it also includes a linear guide rail and a screw assembly, the moving seat is slidably mounted on the linear guide rail through a slider, and the screw assembly drives the moving seat to reciprocate.

[0007] Preferably, the coupling and the chuck are connected via a connecting piece, and the chuck is located at one end of the screwdriver and is provided with a slot that cooperates with the screwdriver.

[0008] Preferably, the XYZ three-axis module includes an X-axis module, a Y-axis module and a Z-axis module. There are two X-axis modules in total. Both X-axis modules are driven by a first bracket. The Y-axis module is installed on two first brackets. The Y-axis module is driven by a second bracket, and the Z-axis module is installed on the second bracket.

[0009] Preferably, a protective cover is installed on the outside of the fixing component and the testing component of the bench, and a protective door is installed on the fixing component of the protective cover.

[0010] Preferably, the driving assembly consists of a reducer and a servo motor.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the locking device is fixed on the second clamping plate, the slot width is manually set, and the hexagon socket screwdriver is moved to the hexagon socket screw of the locking device using an XYZ three-axis module (servo motor control); automatic locking and loosening tests are performed by the servo motor; during the test, the module can follow the position change of the locking device to ensure that the test can be carried out normally; the present application has higher testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the structure of the present invention when the protective cover is removed;

[0015] Figure 3 The present invention Figure 2 The schematic diagram of the structure of the upper part;

[0016] Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0017] Figure 5 It is a schematic diagram of the structure of the test assembly of the present invention;

[0018] Figure 6 It is a schematic diagram of the structure of the test component part of the present invention;

[0019] Figure 7 It is a schematic structural diagram of the clamp and the connecting piece of the present invention.

[0020] In the figure: 1. test bench; 2. protective cover; 3. protective door; 4. fixing assembly; 5. testing assembly; 401. fixing seat; 402. cantilever beam pressure sensor; 403. first clamping plate; 404. linear guide; 405. moving seat; 406. second clamping plate; 407. screw assembly; 501. X-axis module; 502. first bracket; 503. Y-axis module; 504. second bracket; 505. Z-axis module; 506. third bracket; 507. driving assembly; 508. coupling; 509. chuck; 510. connecting piece; 511. screwdriver. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0022] See also Figure 1-7 In an embodiment of the present invention, a locking device durability test device includes a bench 1, a fixing component 4 and a test component 5 are installed on the top of the bench 1; a protective cover 2 is installed on the outside of the fixing component 4 and the test component 5 of the bench 1, and a protective door 3 is installed on the fixing component 4 of the protective cover 2, and the protective door 3 is slidably connected to the protective cover 2.

[0023] The fixing assembly 4 includes a fixing seat 401 and a moving seat 405, a first clamping plate 403 is arranged on one side of the fixing seat 401, and a cantilever beam pressure sensor 402 is installed between the fixing seat 401 and the first clamping plate 403; the moving seat 405 is located on one side of the first clamping plate 403 and is installed with a second clamping plate 406, the moving seat 405 is slidably installed on the linear guide rail 404 through a slider, and the screw assembly 407 drives the moving seat 405 to reciprocate; the locking device is fixed on the second clamping plate 406, the slot width is manually set, and the hexagon socket screwdriver is moved to the hexagon socket screw of the locking device using an XYZ three-axis module (controlled by a servo motor); automatic locking and loosening tests are performed by a servo motor; during the test, the module can follow the position change of the locking device to ensure that the test can be carried out normally.

[0024] The test assembly 5 includes an XYZ three-axis module, which is driven by a third bracket 506, and the third bracket 506 is equipped with a drive assembly 507, and the drive assembly 507 is connected to a chuck 509 through a coupling 508, and the chuck 509 is equipped with a screwdriver 511. The coupling 508 and the chuck 509 are connected by a connector 510, and the chuck 509 is located at one end of the screwdriver 511 and is provided with a slot that matches the screwdriver 511. The drive assembly 507 is composed of a reducer and a servo motor, and the required test torque is 0-2N·M; currently, the servo motor and reducer are configured to meet 1.2N·M.

[0025] The XYZ three-axis module includes an X-axis module 501, a Y-axis module 503 and a Z-axis module 505. There are two X-axis modules 501. Both X-axis modules 501 drive a first bracket 502. The Y-axis module 503 is installed on the two first brackets 502. The Y-axis module 503 drives a second bracket 504. The Z-axis module 505 is installed on the second bracket 504. The current configuration model of the XYZ three-axis module is 40 gantry module SW40L50T05-servo (50mm effective stroke, 1604 ball screw, matching servo motor: 400W, including servo driver (pulse + RS485), cable, rated torque 0.64NM).

[0026] The working principle of the present invention is: fix the locking device on the second clamping plate 406, manually set the slot width, use the XYZ three-axis module (servo motor control) to move the hexagon socket screwdriver to the hexagon socket screw of the locking device; perform automatic locking and loosening tests through the servo motor; during the test, the module can follow the position change of the locking device to ensure that the test can be carried out normally.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A locking device durability test device, comprising a stand (1), characterized in that: A fixing component (4) and a testing component (5) are installed on the top of the bench (1); The fixing assembly (4) comprises a fixing seat (401) and a moving seat (405); a first clamping plate (403) is arranged on one side of the fixing seat (401); a cantilever beam pressure sensor (402) is installed between the fixing seat (401) and the first clamping plate (403); and a second clamping plate (406) is installed on one side of the moving seat (405) located on the first clamping plate (403); The test assembly (5) comprises an XYZ three-axis module, the XYZ three-axis module drives a third bracket (506), the third bracket (506) is installed with a driving assembly (507), the driving assembly (507) is connected to a chuck (509) via a coupling (508), and the chuck (509) is installed with a screwdriver (511).

2. A locking device durability testing device according to claim 1, characterized in that: It also includes a linear guide rail (404) and a screw assembly (407). The moving seat (405) is slidably mounted on the linear guide rail (404) via a slider, and the screw assembly (407) drives the moving seat (405) to move back and forth.

3. The locking device durability testing device according to claim 1, characterized in that: The coupling (508) and the chuck (509) are connected via a connecting piece (510), and the chuck (509) is provided with a slot matched with the screwdriver (511) at one end of the screwdriver (511).

4. The locking device durability testing device according to claim 1, characterized in that: The XYZ three-axis module comprises an X-axis module (501), a Y-axis module (503) and a Z-axis module (505); two X-axis modules (501) are provided in total; the two X-axis modules (501) are driven by a first bracket (502); the Y-axis module (503) is installed on the two first brackets (502); the Y-axis module (503) is driven by a second bracket (504); and the Z-axis module (505) is installed on the second bracket (504).

5. The locking device durability testing device according to claim 1, characterized in that: The bench (1) is provided with a protective cover (2) outside the fixing component (4) and the testing component (5), and the protective cover (2) is provided with a protective door (3) at the fixing component (4).

6. The locking device durability testing device according to claim 1, characterized in that: The driving assembly (507) is composed of a speed reducer and a servo motor.

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