Keyboard detection device

Abstract

The utility model aims to provide a keypad detection device, which comprises a machine base, a detection assembly and a jacking assembly, a material loading table is arranged in the machine base, the detection assembly comprises a detection driving piece and a plurality of probes, the detection driving piece is arranged on the machine base, each probe is arranged on an output shaft of the detection driving piece and is positioned above the material loading table, and the jacking assembly is arranged on the machine base. The detection driving part is used for driving the probe to be close to or away from the material loading table, the jacking assembly comprises a jacking driving part, a plurality of position adjusting parts and a plurality of jacking rods, the jacking driving part is arranged on the machine base, the position adjusting parts are arranged on the jacking driving part, the jacking rods are arranged on the position adjusting parts in a one-to-one correspondence mode, and the jacking rods are located below the material loading table. The position adjusting pieces are used for adjusting the ejecting and pressing rods respectively so that the distance between the ejecting and pressing rods can be adjusted. In this way, the keyboard detection device can be well compatible with detection of keyboard plates of different specifications, and therefore the material cost is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of keypad detection, in particular to a keypad detection device. Background Art

[0002] The keypad is an indispensable component for electrical control, such as massage chairs, washing machines, fans, air conditioners, etc. As an important interactive channel between users and devices, the reliability and stability of the keypad are the most important for users and manufacturers. Therefore, the keypad often needs to be tested for performance before entering the next assembly link. Specifically, the keypad needs to be connected to the testing equipment through wires, and then the response of the key is confirmed by pressing the key.

[0003] For example, a Chinese patent document with the announcement number CN208902848U discloses an automatic detection device for a keypad of a liquid crystal television, which includes: a keypad placing device, a keypad pressing device, a signal light display device, and a keypad detection control device. The keypad placing device includes a test ejector mechanism, which includes a plurality of test ejectors, each of which corresponds to a keypad touch switch test point; the keypad placing device also includes an ejector telescopic drive mechanism, which controls the telescopic movement of the test ejector; the keypad pressing device includes a ejector pressing mechanism, which includes a plurality of contact ejectors, each of which corresponds to a keypad touch switch; the keypad pressing device also includes an ejector telescopic drive mechanism, which controls the telescopic movement of the contact ejector; the signal light display device includes a plurality of light-emitting diodes, each of which corresponds to a keypad touch switch; and the keypad detection control device is connected to the keypad placing device and the keypad pressing device, respectively, and controls their working states. In this way, the keypad conveying device transfers the keypad between the keypad placing device and the keypad pressing device, the keypad placing device contacts the test point of the keypad, and the keypad pressing device presses the keys of the keypad, thereby realizing automatic pressing detection of the keypad.

[0004] However, the existing detection equipment has the following problems in actual use: there are often multiple keys on the keypad, and the specifications of the keypads corresponding to different devices are also different, which means that the position of the contact push rod used to press the key is different, and the position of the test push pin used to contact the test point is also different. Therefore, the current practice is to pre-fabricate an adaptive push rod fixture for each keypad, but this means that after the production is changed, the corresponding push rod fixture can no longer be used, which will cause more and more push rod fixtures to pile up in the warehouse, resulting in a huge waste of production materials and excessive production costs. In order to solve the above problems, a keypad detection device of the present application is proposed. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a keypad detection device which can be applied to keypads of different specifications to perform key detection so as to improve compatibility.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A keypad detection device, comprising:

[0008] A machine base, wherein a loading platform is arranged in the machine base;

[0009] A detection assembly, wherein the detection assembly includes a detection drive and a plurality of probes, wherein the detection drive is disposed on the machine base, each of the probes is disposed on an output shaft of the detection drive, and each of the probes is located above the loading platform, and the detection drive is used to drive the probes to approach or move away from the loading platform; and

[0010] A pressing assembly, the pressing assembly includes a pressing driving member, a plurality of adjusting members and a plurality of pressing rods, the pressing driving member is arranged on the machine base, each adjusting member is arranged on the pressing driving member, each pressing rod is arranged on each adjusting member in a one-to-one correspondence, and each pressing rod is located below the loading platform, and each adjusting member is used to adjust each pressing rod separately so that the distance between each pressing rod is adjustable.

[0011] Optionally, the pushing drive component includes a pushing plate and two pushing cylinders, the two pushing cylinders are both arranged in the machine base, the two ends of the pushing plate are respectively connected to the output shafts of the two pushing cylinders, and the adjusting components are arranged on the pushing plate at intervals.

[0012] Optionally, the adjusting component includes a base column, a swivel seat and a retaining spring, the base column is arranged on the top pressure plate, the swivel seat is rotatably arranged on the base column, the retaining spring is sleeved on the swivel seat, and the retaining spring is respectively in contact with the swivel seat and the base column, and the retaining spring is used to push the swivel seat to keep the swivel seat and the base column fixed.

[0013] Optionally, a plurality of locking grooves are formed on the top surface of the base column, a locking boss is provided on the swivel seat, and the retaining spring is used to push the swivel seat so that the locking boss is accommodated in one of the locking grooves.

[0014] Optionally, a threaded hole is provided on the top pressure plate, and the bottom column is screwed into the threaded hole.

[0015] Optionally, two positioning planes are provided on the outer side wall of the base column, and the two positioning planes are respectively located on two opposite sides of the base column.

[0016] Optionally, the push rod includes a rod sleeve, a buffer spring and a push rod, the rod sleeve is adjustably arranged on the swivel seat, the push rod is passed through the rod sleeve, the buffer spring is respectively in contact with the push rod and the rod sleeve, and the buffer spring is used to push the push rod so that part of the structure of the push rod extends out from the top of the rod sleeve.

[0017] Optionally, a T-slot is provided on the top surface of the swivel seat, and a T-stage is provided at the bottom end of the rod sleeve. The T-stage is adaptively slidably arranged in the T-slot, and a locking nut is also threaded on the T-stage. The locking nut is used to clamp the swivel seat together with the T-stage.

[0018] Optionally, a soft rubber cap is provided at one end of the push rod away from the rod sleeve.

[0019] Optionally, the detection drive component includes a detection plate, a guide column and two detection cylinders, the guide column is arranged on the machine base along the vertical direction, the two detection cylinders are respectively arranged on both sides of the machine base, the detection plate is slidably arranged on the guide column, and the two ends of the detection plate are respectively connected to the output shafts of the two detection cylinders, and each probe is arranged on the detection plate at intervals.

[0020] Compared with the prior art, the utility model has at least the following advantages:

[0021] The keypad detection device of the utility model comprises a machine base, a detection assembly and a pressing assembly. A loading platform is arranged in the machine base. The detection assembly comprises a detection driver and a plurality of probes. The detection driver is arranged on the machine base. Each probe is arranged on the output shaft of the detection driver, and each probe is located above the loading platform. The detection driver is used to drive the probe to approach or move away from the loading platform. The pressing assembly comprises a pressing driver, a plurality of adjusting members and a plurality of pressing rods. The pressing driver is arranged on the machine base. Each adjusting member is arranged on the pressing driver. Each pressing rod is arranged on each adjusting member in a one-to-one correspondence, and each pressing rod is located below the loading platform. Each adjusting member is used to adjust each pressing rod respectively so that the distance between each pressing rod is adjustable. In this way, under the adjusting action of each adjusting member, the distance between each pressing rod can be adjusted according to the actual specifications of the keypad. Therefore, no matter what specifications and shapes of the keypad are, and the number of keys is arbitrary, the position of each pressing rod can be adjusted by the adjusting member, so as to have good compatibility. Compared with the existing pressing fixtures that need to be designed for key panels of different specifications, material costs can be effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a keypad detection device according to one embodiment of the utility model;

[0024] Figure 2 for Figure 1 A partial structural schematic diagram of a keypad detection device shown;

[0025] Figure 3 It is a schematic diagram of a partial structure of a top pressing assembly according to an embodiment of the utility model;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of a positioning member and a push rod according to an embodiment of the utility model;

[0027] Figure 5 It is a schematic structural diagram of a positioning member according to an embodiment of the present utility model.

[0028] Description of reference numerals:

[0029] 10. Keypad detection device; 100. Machine base; 200. Detection assembly; 300. Pressing assembly; 400. Loading platform; 210. Detection drive; 220. Probe; 310. Pressing drive; 320. Positioning member; 330. Pressing rod; 311. Pressing plate; 312. Pressing cylinder; 321. Bottom column; 322. Rotating seat; 323. Retaining spring; 3211. Positioning groove; 324. Positioning boss; 3212. Positioning plane; 331. Rod sleeve; 332. Buffer spring; 333. Push rod; 3221. T-slot; 334. T-stage; 335. Locking nut; 211. Detection plate; 212. Guide column; 213. Detection cylinder. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention.

[0031] like Figure 1 and Figure 2As shown, a keypad detection device 10 includes a base 100, a detection assembly 200 and a top pressing assembly 300. A loading platform 400 is arranged in the base 100. The detection assembly 200 includes a detection drive 210 and a plurality of probes 220. The detection drive 210 is arranged on the base 100. Each probe 220 is arranged on the output shaft of the detection drive 210, and each probe 220 is located above the loading platform 400. The detection drive 210 is used to drive the probe 220 to approach or move away from the loading platform 400. Away from the loading platform 400, the pressing assembly 300 includes a pressing driving member 310, a plurality of adjusting members 320 and a plurality of pressing rods 330. The pressing driving member 310 is arranged on the machine base 100, and each adjusting member 320 is arranged on the pressing driving member 310. Each pressing rod 330 is arranged on each adjusting member 320 in a one-to-one correspondence, and each pressing rod 330 is located below the loading platform 400. Each adjusting member 320 is used to adjust each pressing rod 330 respectively so that the distance between each pressing rod 330 is adjustable.

[0032] Specifically, the loading platform 400 is fixedly installed in the base 100, and the loading platform 400 is used to carry the keypad. The detection component 200 is installed above the loading platform 400, and is used to contact the detection points on the keypad. The top pressing component 300 is installed below the loading platform 400, and is used to press the keys of the keypad. The detection driver 210 is installed on the base 100, and each probe 220 is installed on the detection driver 210. The detection driver 210 drives each probe 220 to move up and down. When the probe 220 descends, the probe 220 can contact the detection points on the keypad. In one embodiment, a detection circuit board for communicating with a computer is installed in the base 100, and the detection circuit board is electrically connected to each probe 220 through a wire, so that the detection information of the keypad can be recorded on the computer in a timely manner. Furthermore, the top pressure driving member 310 is installed below the loading platform 400, and each positioning member 320 is installed on the top pressure driving member 310, and each positioning member 320 is driven by the top pressure driving member 310 to perform lifting and lowering movements. Each top pressure rod 330 is installed on each positioning member 320 in a one-to-one correspondence. In this way, under the positioning action of each positioning member 320, the distance between each top pressure rod 330 can be adjusted according to the actual specifications of the keypad. Therefore, no matter what specifications and shapes of the keypad, and under any circumstances of the number of keys, the position of each top pressure rod 330 can be adjusted by the positioning member 320, so as to have good compatibility. Compared with the existing top pressure fixture that needs to be designed for keypads of different specifications, it can effectively save material costs.

[0033] like Figure 2 and Figure 3As shown, in one embodiment, the top pressure driving member 310 includes a top pressure plate 311 and two top pressure cylinders 312. The two top pressure cylinders 312 are both arranged in the machine base 100. The two ends of the top pressure plate 311 are respectively connected to the output shafts of the two top pressure cylinders 312, and each adjusting member 320 is arranged on the top pressure plate 311 at intervals.

[0034] Specifically, the two pressing cylinders 312 simultaneously drive the pressing plate 311 to perform lifting motion, thereby causing each adjusting member 320 installed on the pressing plate 311 to perform lifting motion.

[0035] like Figure 3 and Figure 4 As shown, in one embodiment, the positioning member 320 includes a base column 321, a swivel seat 322 and a retaining spring 323. The base column 321 is disposed on the top pressure plate 311, the swivel seat 322 is rotatably disposed on the base column 321, the retaining spring 323 is sleeved on the swivel seat 322, and the retaining spring 323 is respectively in contact with the swivel seat 322 and the base column 321, and the retaining spring 323 is used to push the swivel seat 322 to keep the swivel seat 322 and the base column 321 fixed.

[0036] Specifically, the bottom column 321 is installed on the top pressure plate 311, and an empty slot is opened in the axial direction of the bottom column 321. The part of the structure of the rotating seat 322 is adapted to be rotated and installed in the empty slot, so that the rotating seat 322 can rotate relative to the bottom column 321. The retaining spring 323 is sleeved on the rotating seat 322, and the retaining spring 323 is located in the empty slot of the bottom column 321, so that the retaining spring 323 is respectively in contact with the bottom column 321 and the rotating seat 322. In this way, under the elastic thrust of the retaining spring 323, the rotating seat 322 has a tendency to press against the bottom column 321, so that the rotating seat 322 and the bottom column 321 can be kept in a fixed state. In this way, the top pressure rod 330 is installed at the top position of the rotating seat 322. By rotating the rotating seat 322, the position of the top pressure rod 330 relative to the bottom column 321 can be changed, that is, the position distance between each top pressure rod 330 can be changed.

[0037] like Figure 5 As shown, in one embodiment, a plurality of locking grooves 3211 are opened on the top surface of the bottom column 321, a locking boss 324 is provided on the rotating seat 322, and a retaining spring 323 is used to push the rotating seat 322 so that the locking boss 324 is accommodated in one of the locking grooves 3211.

[0038] It should be noted that, in order to improve the stability of the rotating seat 322 relative to the bottom column 321, a plurality of circumferentially distributed locking grooves 3211 are provided on the bottom column 321, so that the locking boss 324 is accommodated in one of the locking grooves 3211 at any time. In this way, the rotation seat 322 can be effectively prevented from being deviated when the position of the rotating seat 322 relative to the bottom column 321 is fixed.

[0039] In one embodiment, a threaded hole is formed on the top pressure plate 311, and the bottom column 321 is screwed into the threaded hole, so that the bottom column 321 can be easily installed and removed.

[0040] like Figure 3 As shown, in one embodiment, two positioning planes 3212 are further provided on the outer side wall of the bottom column 321, and the two positioning planes 3212 are respectively located on the opposite sides of the bottom column 321. In this way, the two positioning planes 3212 can be used to facilitate the wrench to apply torque to the bottom column 321 for installation or removal.

[0041] like Figure 4 As shown, in one embodiment, the push rod 330 includes a rod sleeve 331, a buffer spring 332 and a push rod 333. The rod sleeve 331 is adjustably arranged on the swivel seat 322, the push rod 333 is passed through the rod sleeve 331, and the buffer spring 332 is respectively in contact with the push rod 333 and the rod sleeve 331. The buffer spring 332 is used to push the push rod 333 so that part of the structure of the push rod 333 extends out from the top of the rod sleeve 331.

[0042] Specifically, when the push rod 330 pushes the key of the key board, in order to avoid the push rod 330 from hard contact with the key, the above structure is provided. Specifically, the rod sleeve 331 is adjustably mounted at any position on the top surface of the swivel seat 322. The push rod 333 is axially mounted in the rod sleeve 331, and the buffer spring 332 is mounted in the rod sleeve 331, and the buffer spring 332 is respectively in contact with the rod sleeve 331 and the push rod 333, so that under the elastic action of the buffer spring 332, the push rod 333 can have a certain buffer relative to the rod sleeve 331. In this way, it is avoided that the push rod 333 is in hard contact when pushing the key.

[0043] like Figure 4 As shown, in one embodiment, a T-slot 3221 is provided on the top surface of the swivel seat 322, and a T-stage 334 is provided at the bottom end of the rod sleeve 331. The T-stage 334 is adaptively slidably arranged in the T-slot 3221, and a locking nut 335 is screwed on the T-stage 334. The locking nut 335 is used to clamp the swivel seat 322 together with the T-stage 334.

[0044] Specifically, the T-slot 3221 penetrates the axis of the swivel seat 322 on the top surface of the swivel seat 322. Slide the T-stage 334 into the T-slot 3221, and then rotate the locking nut 335 so that the locking nut 335 rotates to approach the T-stage 334, so that the locking nut 335 locks the T-stage 334 in the T-slot 3221, that is, the rod sleeve 331 is fixed on the swivel seat 322. It should be noted that the rod sleeve 331 is in an eccentric position on the swivel seat 322, and the swivel seat 322 can be rotated and adjusted relative to the bottom column 321, so that the distance between the top rods 333 can be adjusted arbitrarily, so that it can be compatible with the press detection of keypads of different specifications, and has good compatibility.

[0045] In one embodiment, a soft rubber cap is provided at one end of the top rod 333 away from the rod sleeve 331. In this way, the soft rubber cap contacts the keys of the key board, which can effectively protect the keys.

[0046] like Figure 1 As shown, in one embodiment, the detection drive 210 includes a detection plate 211, a guide column 212 and two detection cylinders 213. The guide column 212 is arranged on the base 100 along the vertical direction. The two detection cylinders 213 are respectively arranged on both sides of the base 100. The detection plate 211 is slidably arranged on the guide column 212, and the two ends of the detection plate 211 are respectively connected to the output shafts of the two detection cylinders 213, and each probe 220 is arranged on the detection plate 211 at intervals.

[0047] Specifically, for example, the guide column 212 can be set to be multiple as needed, for example, four guide columns 212 are provided, and the four guide columns 212 are installed in the base 100 along the vertical direction. Four linear bearings are installed at corresponding positions on the detection plate 211, so that the four guide columns 212 pass through the four linear bearings respectively. In this way, the detection plate 211 can stably move up and down along the guide columns 212. Furthermore, the two detection cylinders 213 are respectively located on both sides of the loading platform 400, and the two detection cylinders 213 drive the detection plate 211 to move up and down at the same time, so that the probe 220 can contact the detection point of the key board when it descends, and stay away from the detection point when it rises.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A keypad detection device, characterized in that: include: A machine base, wherein a loading platform is arranged in the machine base; A detection assembly, wherein the detection assembly includes a detection drive and a plurality of probes, wherein the detection drive is disposed on the machine base, each of the probes is disposed on an output shaft of the detection drive, and each of the probes is located above the loading platform, and the detection drive is used to drive the probes to approach or move away from the loading platform; and A pressing assembly, the pressing assembly includes a pressing driving member, a plurality of adjusting members and a plurality of pressing rods, the pressing driving member is arranged on the machine base, each adjusting member is arranged on the pressing driving member, each pressing rod is arranged on each adjusting member in a one-to-one correspondence, and each pressing rod is located below the loading platform, and each adjusting member is used to adjust each pressing rod separately so that the distance between each pressing rod is adjustable.

2. The keypad detection device according to claim 1, characterized in that: The top pressure driving component includes a top pressure plate and two top pressure cylinders. The two top pressure cylinders are both arranged in the machine base. The two ends of the top pressure plate are respectively connected to the output shafts of the two top pressure cylinders. The positioning components are arranged on the top pressure plate at intervals.

3. The keypad detection device according to claim 2, characterized in that: The adjusting component includes a bottom column, a swivel seat and a retaining spring. The bottom column is arranged on the top pressure plate. The swivel seat is rotatably arranged on the bottom column. The retaining spring is sleeved on the swivel seat, and the retaining spring is respectively in contact with the swivel seat and the bottom column. The retaining spring is used to push the swivel seat to keep the swivel seat and the bottom column fixed.

4. The keypad detection device according to claim 3, characterized in that: A plurality of locking grooves are formed on the top surface of the bottom column, a locking boss is provided on the rotating seat, and the retaining spring is used to push the rotating seat so that the locking boss is accommodated in one of the locking grooves.

5. The keypad detection device according to claim 3, characterized in that: The top pressure plate is provided with a threaded hole, and the bottom column is screwed into the threaded hole.

6. The keypad detection device according to claim 5, characterized in that: Two positioning planes are also provided on the outer side wall of the bottom column, and the two positioning planes are respectively located on two opposite sides of the bottom column.

7. The keypad detection device according to claim 3, characterized in that: The push rod includes a rod sleeve, a buffer spring and a push rod. The rod sleeve is adjustably arranged on the swivel seat. The push rod is inserted into the rod sleeve. The buffer spring is respectively in contact with the push rod and the rod sleeve. The buffer spring is used to push the push rod so that part of the structure of the push rod extends out from the top of the rod sleeve.

8. The keypad detection device according to claim 7, characterized in that: A T-shaped slot is provided on the top surface of the swivel seat, and a T-shaped platform is provided at the bottom end of the rod sleeve. The T-shaped platform is adaptively slidably arranged in the T-shaped slot, and a locking nut is also screwed on the T-shaped platform. The locking nut is used to clamp the swivel seat together with the T-shaped platform.

9. The keypad detection device according to claim 7, characterized in that: A soft rubber cap is arranged at one end of the push rod away from the rod sleeve.

10. The keypad detection device according to claim 1, characterized in that: The detection drive component includes a detection plate, a guide column and two detection cylinders. The guide column is arranged on the machine base along the vertical direction. The two detection cylinders are respectively arranged on both sides of the machine base. The detection plate is slidably arranged on the guide column, and the two ends of the detection plate are respectively connected to the output shafts of the two detection cylinders, and each probe is arranged on the detection plate at intervals.

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