A key durability test fixture

Abstract

The utility model relates to the technical field of key test, and specifically to a key durability test fixture, comprising a base, a storage frame fixedly arranged on the base, a fixing frame fixedly arranged on the storage frame on the base, a lifting plate arranged at the bottom of the fixing frame, two groups of connecting rods slidably arranged at intervals in the storage frame, two groups of clamping plates symmetrically arranged at intervals on adjacent sides of the two groups of connecting rods, a slider 1 fixedly arranged on the side of the clamping plate close to the connecting rod, a slide groove 1 matched with the slider 1 is arranged on the connecting rod, a spring 1 is arranged at one end of the slide groove 1 away from the middle of the connecting rod, and two ends of the spring 1 are respectively in contact with the storage frame and the slider 1. In the device, by using the two groups of connecting rods slidably arranged in the storage frame and the two groups of clamping plates slidably arranged on the connecting rod, the positions of the connecting rods and the clamping plates can be adjusted according to the specifications of different keys and then limited, thereby improving the scope of application.

Description

Technical Field

[0001] The present application relates to the technical field of key testing, and in particular to a key durability testing fixture. Background Art

[0002] In the field of electronic products, many electronic products are equipped with function buttons. As input devices of electronic devices, the quality of function buttons directly affects the operation of electronic devices. Therefore, after the buttons are produced, test fixtures are usually required to perform durability tests on the buttons on the device.

[0003] A Chinese utility model patent with publication number CN218239305U discloses a multi-function button detection jig, including a base and a protective box, an opening is provided in the middle of the upper end of the base, the middle of the left side of the opening is fixedly connected to the right end of the first fixed block, and the middle of the right end of the opening is fixedly connected to the left end of the second fixed block, and the front and rear ends of the left and right sides of the upper end of the base are provided with openings, the bottom ends of the openings are fixedly connected to one end of the spring, and the other ends of the springs are fixedly connected to the bottom end of the sliding column, and the upper ends of the sliding columns are fixedly connected to the pressing blocks through the fixing bolts. In the utility model, the multi-function button of the car steering wheel is placed in the opening, the direction of the sliding column and the pressing block is adjusted so that the pressing block is located at the upper part of the button, and then the pressing block is repeatedly pressed back and forth by the detection equipment to shrink the spring in the opening, and the durability of the button is tested.

[0004] The device is provided with a base, and an opening is provided on the base, and both ends of the opening are respectively connected to a first fixed block and a second fixed block. When performing a durability test on a key, a staff member places the key at the opening and limits the key by the first fixed block and the second fixed block, and then presses the pressing block through a detection device to implement the test of the key. However, the opening on the base can only match and limit keys of a single specification. When it is necessary to test keys of different specifications, different bases need to be made, and the scope of application is small. Utility Model Content

[0005] In view of the problem of small application scope in the prior art, the utility model specially provides a key durability test fixture.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] The utility model provides a key durability test fixture.

[0008] A base, a storage frame is fixedly arranged on the base, a fixing frame is fixedly arranged on the storage frame on the base, a lifting plate is arranged at the bottom of the fixing frame, two groups of connecting rods are arranged in the storage frame for sliding at intervals, two groups of clamping plates are arranged symmetrically at intervals on adjacent sides of the two groups of connecting rods, a slider 1 is fixedly arranged on the side of the clamping plate close to the connecting rod, a slide groove 1 matched with the slider 1 is arranged on the connecting rod, a spring 1 is arranged at one end of the slide groove 1 away from the middle of the connecting rod, and two ends of the spring 1 are respectively in contact with the storage frame and the slider 1;

[0009] It also includes a driving mechanism, which is arranged on the storage frame;

[0010] It also includes a pressing mechanism, which is arranged on the lifting plate.

[0011] Preferably, the driving mechanism includes a motor 1, a screw and a slider 2, a group of sliders 2 are fixedly provided at both ends of the connecting rod, a side wall of the storage frame is provided with a slide groove 2 matched with the slider 2, a mounting cavity is provided in the storage frame, the motor 1 is fixedly arranged in the mounting cavity, the output shaft of the motor 1 is fixedly connected to one end of the screw, the other end of the screw is located in the slide groove 2 and is rotatably connected to the storage frame, threaded sections in opposite directions are provided at both ends of the screw, the sliders 2 on the two groups of connecting rods are respectively threadedly sleeved on one end of the screw, and the staff starts the motor 1, so that the motor 1 drives the screw to rotate, and then drives the two groups of connecting rods to move away and approach synchronously through the threaded sections in opposite directions at both ends of the screw, so as to bring the splints on the two groups of connecting rods closer together, and the operation is convenient.

[0012] Preferably, the pressing mechanism includes a fixed cover, a pressure plate, a second motor, a rotating shaft and a cam. The fixed cover is fixedly arranged at the bottom of the lifting plate, a pressure plate is slidably arranged at the bottom of the fixed cover, the second motor is fixedly arranged on one side of the fixed cover, the output shaft of the second motor is fixedly connected to one end of the rotating shaft, the rotating shaft is rotatably connected to the fixed cover, a cam is fixedly arranged in the middle of the rotating shaft, and the outer edge of the cam abuts against the pressure plate. The staff starts the second motor on the fixed cover, and the second motor drives the rotating shaft to rotate, thereby driving the cam to rotate synchronously. When the cam rotates, the outer edge abuts against the pressure plate, so that the pressure plate presses the button reciprocatingly, and the operation is convenient.

[0013] Preferably, a fixing rod is fixedly provided on the pressure plate, and a countersunk hole matched with the fixing rod is provided on the fixing cover, a spring 2 is provided in the countersunk hole and the spring 2 is sleeved on the fixing rod, and the two ends of the spring 2 are respectively connected with the pressure plate and the fixing cover, and the lifting and lowering of the pressure plate is limited by arranging a fixing rod on the pressure plate, and the spring 2 is arranged so that the cam abuts against the pressure plate to stretch the spring 2 when the pressure plate descends, and when the large diameter end of the cam is separated from the abutment with the pressure plate, the spring drives the pressure plate to rise and restore it to its original position, and the operation is convenient.

[0014] Preferably, the fixing rods are provided in multiple groups and are spaced around the pressing plate. By providing multiple groups of fixing rods, multi-point limiting of the pressing plate is achieved to ensure the stability of the lifting and lowering of the pressing plate.

[0015] Preferably, an electric push rod is fixedly provided on the top of the fixed frame, and the output shaft of the electric push rod is fixedly connected to the top of the lifting plate. The lifting plate is driven to rise and fall by the output shaft of the electric push rod, and the distance between the pressure plate and the top of the button is adjusted, so that it can effectively test buttons with different key strokes, thereby improving the scope of application.

[0016] Preferably, limit blocks are fixedly provided on both sides of the lifting plate, and a limit groove matched with the limit block is provided on the fixing frame. By arranging the limit blocks on the lifting plate, the lifting operation of the lifting plate can be limited.

[0017] The advantages of adopting the above technical solution are:

[0018] The utility model is provided with a base, a storage frame is fixedly provided on the base, a fixing frame is fixedly provided on the storage frame on the base, a lifting plate is provided at the bottom of the fixing frame, two groups of connecting rods are slidably provided in the storage frame at intervals, two groups of clamping plates are symmetrically provided on adjacent sides of the two groups of connecting rods, a slider one is fixedly provided on the side of the clamping plate close to the connecting rod, a sliding groove one matched with the slider one is provided on the connecting rod, a spring one is provided at one end of the sliding groove one away from the middle of the connecting rod, and two ends of the spring one are respectively abutted against the storage frame and the slider one. In the device, by using the two groups of connecting rods slidably provided in the storage frame and the two groups of clamping plates slidably provided on the connecting rod, the positions of the connecting rod and the clamping plate can be adjusted according to the specifications of different buttons and then limited, thereby improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The structure diagram of the utility model is shown;

[0021] Figure 2 A partial structural schematic diagram of the utility model is shown;

[0022] Figure 3 A partial cross-sectional view of the utility model is shown;

[0023] Figure 4 A partial structural schematic diagram of the utility model is shown.

[0024] Among them: base 1, storage frame 2, slide groove 201, fixing frame 3, limit groove 301, lifting plate 4, limit block 401, connecting rod 5, slide groove 1 501, slider 2 502, clamping plate 6, slider 1 601, spring 1 602, electric push rod 7, fixing cover 8, pressure plate 801, fixing rod 802, spring 2 803, motor 2 9, rotating shaft 901, cam 902. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] like Figure 1-4 As shown, the embodiment of the utility model discloses a key durability test fixture, including a base 1, a driving mechanism and a pressing mechanism.

[0027] A base 1 is provided, on which a storage frame 2 is fixedly arranged, a fixing frame 3 is fixedly arranged on the storage frame 2 on the base 1, a lifting plate 4 is provided at the bottom of the fixing frame 3, two groups of connecting rods 5 are slidingly arranged at intervals in the storage frame 2, two groups of clamping plates 6 are symmetrically arranged at intervals on adjacent sides of the two groups of connecting rods 5, a slider 601 is fixedly arranged on the side of the clamping plate 6 close to the connecting rod 5, a slide groove 501 matched with the slider 601 is provided on the connecting rod 5, a spring 602 is provided at one end of the slide groove 501 away from the middle of the connecting rod 5, and two ends of the spring 602 are respectively in contact with the storage frame 2 and the slider 601, the driving mechanism is provided on the storage frame 2, and the pressing mechanism is provided on the lifting plate 4.

[0028] In at least one embodiment, the driving mechanism includes a motor 1, a screw and a slider 2 502, a group of sliders 2 502 are fixedly provided at both ends of the connecting rod 5, a side wall of the storage frame 2 is provided with a slide groove 201 matched with the slider 2 502, and an installation cavity is provided in the storage frame 2, and the motor 1 is fixedly arranged in the installation cavity. The output shaft of the motor 1 is fixedly connected to one end of the screw, and the other end of the screw is located in the slide groove 201 and is rotatably connected to the storage frame 2. Threaded sections in opposite directions are provided at both ends of the screw, and the sliders 2 502 on the two groups of connecting rods 5 are respectively threadedly sleeved on one end of the screw. The staff starts the motor 1, so that the motor 1 drives the screw to rotate, and then drives the two groups of connecting rods 5 to move away and approach synchronously through the threaded sections in opposite directions at both ends of the screw, so as to bring the splints 6 on the two groups of connecting rods 5 closer together, and the operation is convenient.

[0029] In at least one embodiment, the pressing mechanism includes a fixed cover 8, a pressure plate 801, a motor 9, a rotating shaft 901 and a cam 902. The fixed cover 8 is fixedly arranged at the bottom of the lifting plate 4, and a pressure plate 801 is slidably arranged at the bottom of the fixed cover 8. The motor 9 is fixedly arranged on one side of the fixed cover 8. The output shaft of the motor 9 is fixedly connected to one end of the rotating shaft 901. The rotating shaft 901 is rotatably connected to the fixed cover 8. A cam 902 is fixedly arranged in the middle of the rotating shaft 901, and the outer edge of the cam 902 abuts against the pressure plate 801. The staff starts the motor 9 on the fixed cover 8, and the motor 9 drives the rotating shaft 901 to rotate, thereby driving the cam 902 to rotate synchronously. When the cam 902 rotates, the outer edge abuts against the pressure plate 801, so that the pressure plate 801 presses the key reciprocatingly, which is convenient to operate.

[0030] In at least one embodiment, a fixing rod 802 is fixedly provided on the pressure plate 801, and a countersunk hole matched with the fixing rod 802 is provided on the fixing cover 8, and a spring 803 is provided in the countersunk hole and the spring 803 is sleeved on the fixing rod 802. The two ends of the spring 803 are respectively connected to the pressure plate 801 and the fixing cover 8. The lifting and lowering of the pressure plate 801 is limited by arranging the fixing rod 802 on the pressure plate 801, and the spring 803 is arranged so that the cam 902 abuts against the pressure plate 801 to stretch the spring 803 when the pressure plate 801 descends. When the large diameter end of the cam 902 is separated from the abutment with the pressure plate 801, the spring drives the pressure plate 801 to rise and restore it to its original position, which is convenient to operate.

[0031] In at least one embodiment, the fixing rods 802 are provided in multiple groups and are spaced around the pressing plate 801 . By providing multiple groups of fixing rods 802 , multi-point limiting of the pressing plate 801 is achieved to ensure the stability of the lifting and lowering of the pressing plate 801 .

[0032] In at least one embodiment, an electric push rod 7 is fixedly installed on the top of the fixed frame 3, and the output shaft of the electric push rod 7 is fixedly connected to the top of the lifting plate 4. The lifting plate 4 is driven to rise and fall by the output shaft of the electric push rod 7, and the distance between the pressure plate 801 and the top of the key is adjusted, so that it can effectively test keys with different key strokes, thereby improving the scope of application.

[0033] In at least one embodiment, limit blocks 401 are fixedly provided on both sides of the lifting plate 4, and a limit groove 301 matched with the limit block 401 is provided on the fixed frame 3. By setting the limit block 401 on the lifting plate 4, the lifting and lowering operation of the lifting plate 4 is limited.

[0034] When the key is subjected to the durability test, the staff member places the key in the middle of the storage frame 2 on the base 1, and then controls the two groups of connecting rods 5 to approach synchronously through the driving mechanism on the storage frame 2. When the splint 6 on the connecting rod 5 approaches the key, the staff member slides the two groups of sliders 1 601 on the connecting rod 5 along the slide groove 1 501, so that the two groups of sliders 1 601 drive the splint 6 to move away from each other, and the spring 1 602 is compressed when the two groups of sliders 1 601 move away from each other. When the two groups of splints 6 approach the outer edge of the key, the connecting rod 5 continues to slide, so that the splint 6 abuts against the key, and the splint 6 is L-shaped. The four groups of L-shaped splints 6 on the two groups of connecting rods 5 can effectively abut and clamp the corners around the key, which is convenient to operate and ensures the effective limit of the key. Moreover, the sliding of the connecting rod 5 and the splint 6 can clamp and limit keys of different specifications, thereby improving the scope of application. Afterwards, the staff member presses the key through the pressing mechanism on the lifting plate 4 to realize the durability test of the key.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A key durability test fixture, characterized in that: include A base, a storage frame is fixedly arranged on the base, a fixing frame is fixedly arranged on the storage frame on the base, a lifting plate is arranged at the bottom of the fixing frame, two groups of connecting rods are arranged in the storage frame for sliding at intervals, two groups of clamping plates are arranged symmetrically at intervals on adjacent sides of the two groups of connecting rods, a slider 1 is fixedly arranged on the side of the clamping plate close to the connecting rod, a slide groove 1 matched with the slider 1 is arranged on the connecting rod, a spring 1 is arranged at one end of the slide groove 1 away from the middle of the connecting rod, and two ends of the spring 1 are respectively in contact with the storage frame and the slider 1; It also includes a driving mechanism, which is arranged on the storage frame; It also includes a pressing mechanism, which is arranged on the lifting plate.

2. A key durability test fixture according to claim 1, characterized in that: The driving mechanism includes a motor 1, a screw rod and a slider 2, a group of sliders 2 are fixedly arranged at both ends of the connecting rod, a side wall of the storage frame is provided with a slide groove 2 matched with the sliders 2, a mounting cavity is provided in the storage frame, the motor 1 is fixedly arranged in the mounting cavity, the output shaft of the motor 1 is fixedly connected to one end of the screw rod, the other end of the screw rod is located in the slide groove 2 and is rotatably connected to the storage frame, threaded sections in opposite directions are provided at both ends of the screw rod, and the sliders 2 on the two groups of connecting rods are respectively threadedly sleeved on one end of the screw rod.

3. A key durability test fixture according to claim 1, characterized in that: The pressing mechanism includes a fixed cover, a pressure plate, a second motor, a rotating shaft and a cam. The fixed cover is fixedly arranged at the bottom of the lifting plate, a pressure plate is slidably arranged at the bottom of the fixed cover, the second motor is fixedly arranged on one side of the fixed cover, the output shaft of the second motor is fixedly connected to one end of the rotating shaft, the rotating shaft is rotatably connected to the fixed cover, a cam is fixedly arranged in the middle of the rotating shaft, and the outer edge of the cam abuts against the pressure plate.

4. A key durability test fixture according to claim 3, characterized in that: A fixing rod is fixedly arranged on the pressing plate, a countersunk hole matched with the fixing rod is arranged on the fixing cover, a second spring is arranged in the countersunk hole and the second spring is sleeved on the fixing rod, and two ends of the second spring are respectively connected to the pressing plate and the fixing cover.

5. A key durability test fixture according to claim 4, characterized in that: The fixing rods are arranged in multiple groups and are spaced around the pressing plate.

6. A key durability test fixture according to claim 1, characterized in that: An electric push rod is fixedly arranged on the top of the fixing frame, and an output shaft of the electric push rod is fixedly connected to the top of the lifting plate.

7. A key durability test fixture according to claim 1, characterized in that: Limit blocks are fixedly arranged on both sides of the lifting plate, and the fixing frame is provided with limit grooves matched with the limit blocks.

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