CN210665013U

CN210665013U - Ejecting type keycap detection device

Info

Publication number: CN210665013U
Application number: CN201921648903.5U
Authority: CN
Inventors: 刘利刚
Original assignee: Kunshan Hongzhixi Automation Equipment Co
Current assignee: Kunshan Hongzhixi Automation Equipment Co
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-02
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a key cap detection device of liftout formula, it includes the liftout pole, the detection of following the key cap back with the outside ejecting settlement distance of key cap the liftout pole receives pressure sensor, the drive of key cap reaction force size pressure sensor carries out the Z axle driving piece of motion on the Z axle. The utility model discloses detection efficiency is high, simple structure.

Description

Ejecting type keycap detection device

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of the key cap detects, especially, relate to a key cap detection device of liftout formula.

[ background of the invention ]

The keyboard is generally assembled by an aluminum substrate, a circuit board, a scissors support frame and a key cap, and the currently known main reasons for causing the poor elasticity or pulling force of the key cap of the keyboard are as follows: 1) the materials are not good, for example, the clamping hooks of the aluminum base plate deform, the middle shaft of the scissors supporting frame is broken, or the key cap structure assembled by the inner scissors and the outer scissors lacks materials and collapses, and the four corners of the key cap and the assembled part of the inner scissors and the outer scissors (namely, the written name is the structure of the water drop hole and the chute) are not good; 2) poor assembly, such as damage to the keyboard or keycap structure during assembly due to human or assembled mechanical device failure. The key cap elasticity or the drawing force of the keyboard is insufficient or has no elasticity due to the two points, and the service life and the mechanical hand feeling of the keyboard can be seriously influenced after the keyboard is made into a finished product. Therefore, after the key cap is mounted on the keyboard, in order to ensure the reliability of subsequent use, the drawing force of the keyboard key cap after being assembled needs to be tested.

The company starts to research and develop automation equipment for assembling and detecting a keyboard as early as 2013, and regarding keycap drawing test equipment, a patent number 201510726534.7 applied by the company discloses a pressing module for keycap drawing force test and a keycap drawing force test machine. Along with the research and development of this company, applied for a key cap structure poor assembly test machine of patent No. 201810262493.4 again, in the in-service use process, found that the degree of accuracy of the testing result of this equipment sometimes is very unstable, and the overall structure of detecting first subassembly module is a bit complicated, and the structure quantity is more, retrencies inadequately.

Later, this company has applied for patent No. CN201822184926.7 again in 2018, 12/25, has disclosed a full-automatic key cap that detection efficiency is high and has drawn testing arrangement, and it adopts pressure sensor to draw the test head to set up the gyro wheel in pressure sensor before and after drawing the test head and push down the keyboard surface, guarantee to draw the precision of test result, although solved above-mentioned technical problem, but along with market demand more and more, the keyboard kind that needs to test also increases gradually. In the patent technology, the detected keyboard needs to be provided with a smooth through groove for the roller to walk, but the keys of some keyboards are in size and are distributed with personalized designs, some individual keycaps can extend into the gap space between two adjacent keycaps and do not have smooth through groove conditions, and therefore, the detection device cannot meet the requirements by adopting the original detection device.

And all above-mentioned detection structures adopt the pulling block to lift up the key cap upwards, adopt the suppression structure to compress tightly the keyboard surface, and the manipulator expansion end is provided with XYZ triaxial drive, and its load is great, and expansion end superstructure is comparatively miscellaneous.

Therefore, it is necessary to provide a new key cap detection device of a push-out type to solve the above problems.

[ Utility model ] content

The utility model discloses a main aim at provides an adopt ejecting key cap's mode to acquire key cap reaction force, simple structure and key cap detection device that detection efficiency is high.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a push-out type keycap detection device comprises a push-out rod and a pressure sensor, wherein the push-out rod pushes out a keycap outwards from the back of the keycap by a set distance, and the pressure sensor detects the magnitude of the reaction force of the push-out rod on the keycap.

Furthermore, the ejection rod is provided with a plurality of ejection rods and is arranged corresponding to the keycaps to be detected; or the ejection rods are distributed according to the designed points to be detected on the keycap to be detected.

Furthermore, all the ejector rods are movably arranged on one supporting plate up and down.

Furthermore, the upper end of the ejector rod is provided with an annular bulge for erecting the support plate without falling.

Furthermore, a mounting bracket is arranged at the sensing end of the pressure sensor, and a pressing piece for pressing the ejection rod downwards is arranged on the mounting bracket.

Further, the pressing piece is a roller or a pressing plate with a guide inclined plane.

Furthermore, during detection, the supporting plate is pressed on the surface of the keyboard to stabilize the keyboard, at the moment, the back surface of the keycap supports the bottom end of the ejector rod and ejects the upper surface of the ejector rod by a height which is larger than a set distance required for ejecting the keycap.

Furthermore, during detection, a keyboard is placed above the supporting plate, the length of the ejector rod is set to be higher than the surface of the supporting plate in a natural placing state, and the top end of the ejector rod abuts against the back face of the keycap.

Furthermore, the keyboard further comprises an X-axis driving piece and a Z-axis driving piece for driving the pressure sensor to move on a Z axis, and the X-axis driving piece drives the pressure sensor to integrally move along the long edge of the keyboard.

Further, the ejection rod is arranged at the sensing end of the pressure sensor and moves up and down along with the pressure sensor.

Compared with the prior art, the utility model relates to a key cap detection device of liftout formula's beneficial effect lies in: through setting up mobilizable ejector pin from top to bottom, utilize ejector pin to exert an effort to the key cap, with the outside ejecting distance of setting for of key cap, then detect at ejecting this section through pressure sensor and judge the good or bad of key cap apart from the reaction force curvilinear variation of in-process key cap, and utilize and to be located the setting height to set for the pressing part setting and come to carry out one-by-one to the ejector pin or ejecting at pressure sensor response end, need not to carry out the Z axle motion at specific key cap position, the detection efficiency is greatly improved, the configuration requirement of driving piece has been reduced, service life is prolonged.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the ejection-type key cap detection device of the present invention;

FIG. 2 is a schematic view of a part of the structure of the liftout key cap detection device of the present invention;

the figures in the drawings represent:

100 ejection type keycap detection device; 101 a keyboard;

1, ejecting a rod; 2 a pressure sensor; a 3Z axis drive member; 4, supporting plates; 5, mounting a bracket; 6 pressing piece; 7X axis drive.

[ detailed description ] embodiments

The first embodiment is as follows:

in this embodiment, the "front" of the key cap refers to a side of the key cap that is touched by a finger; "Back" refers to the reverse of the surface of the key cap when a finger is struck.

Referring to fig. 1-2, the present embodiment is a key cap detection apparatus 100 of a push-out type, which includes a push-out rod 1 for pushing out a key cap from a bottom of the key cap by a set distance, and a pressure sensor 2 for detecting a reaction force of the push-out rod 1 on the key cap.

The embodiment provides a keycap detection method, which comprises the steps of reversely placing a keyboard, downwards ejecting a keycap by an ejection rod 1 from the upper side for a set distance, detecting the magnitude of a reaction force of the keycap on the ejection rod 1 in real time by using a pressure sensor 2, collecting real-time data of the pressure sensor 2 by an upper computer to form an action force curve, comparing the action force curve with an action force curve of a normal keycap, and judging that the keycap is normal if the action force curve is within an allowable error range; if not, the key cap is judged to be NG.

In this embodiment, the ejection rods 1 are disposed corresponding to the keycaps to be detected, or disposed in a distributed manner according to the designed points to be detected on the keycaps to be detected. All the ejector rods 1 are arranged on a supporting plate 4 in a vertically movable manner. The upper end of the ejector rod 1 is provided with an annular projection (not marked in the figure) for being erected on the support plate 4 and not falling off. The supporting plate 4 is provided with a through hole (not shown) for the ejector rod 1 to move up and down.

The sensing end of the pressure sensor 2 is provided with a mounting bracket 5, and the mounting bracket 5 is provided with a pressing piece 6 for pressing the ejection rod 1 downwards.

In this embodiment, the pressing member 6 is a roller. In other embodiments, the pressing member 6 may be a pressing plate with a guide slope.

This embodiment still is provided with X axle driving piece 7, and drive pressure sensor 2 is whole to be removed along the long limit of keyboard, through the removal of pressing piece 6 on the X axle, can avoid the Z axle motion of pressing piece 6 on single key cap, has reduced the configuration requirement to Z axle driving piece, has improved detection efficiency, has reduced the cost of manufacture, and has reduced the programming research and development degree of difficulty and shortened the research and development cycle.

During detection, the supporting plate 4 is arranged above the keyboard, in order to ensure the position stability of the keyboard, the supporting plate 4 can be tightly pressed on the surface of the keyboard to play a role in stabilizing the keyboard, at the moment, the back surface of the keycap supports the bottom end of the ejector rod 1 and ejects the upper surface of the ejector rod 1 by a height, and the height is greater than a set distance for ejecting the keycap; then set up the bottom of pressing piece 6 again and set for the high position, walk one time along the key cap of rectangular distribution with pressing piece 6, can realize that 6 effects ejector pin 1 of pressing piece sets for the distance with key cap ejecting down, at this moment, can acquire the reaction force size of key cap in real time through pressure sensor 2 to obtain the effort curve, judge the good or bad of key cap through the effort curve contrast with the standard.

This embodiment still includes the Z axle driving piece 3 that drive pressure sensor 2 carried out the motion on the Z axle, can adjust the height of pressfitting 6 through the downward motion of Z axle driving piece 3 drive pressure sensor 2, satisfies the key cap test of various effort size requirements.

Example two:

referring to fig. 1-2, the present embodiment is a key cap detection apparatus 100 of a push-out type, which includes a push-out rod 1 for pushing up a key cap from a bottom of the key cap by a predetermined distance, and a pressure sensor 2 for detecting a reaction force of the push-out rod 1 from the key cap.

The embodiment provides a keycap detection method, which comprises the steps of placing a keyboard with the right side facing upwards, ejecting a keycap upwards for a set distance by using an ejection rod 1 from the lower part of the keycap, detecting the magnitude of the reaction force of the keycap on the ejection rod 1 in real time by using a pressure sensor 2, collecting real-time data of the pressure sensor 2 by an upper computer to form an acting force curve, comparing the acting force curve with the acting force curve of a normal keycap, and judging that the keycap is normal if the acting force curve is within an allowable error range; if not, the key cap is judged to be NG.

The ejection rod 1 is arranged corresponding to the keycap to be detected, and can also be distributed according to the points to be detected on the keycap to be detected. All the ejector rods 1 are arranged on a supporting plate 4 in a vertically movable manner. The upper end of the ejector rod 1 is provided with an annular projection (not marked in the figure) for being erected on the support plate 4 and not falling off. The supporting plate 4 is provided with a through hole (not shown) for the ejector rod 1 to move up and down.

During detection, the keyboard is placed above the supporting plate 4, the length of the ejector rod 1 is set to be higher than the surface of the supporting plate 4 in a natural placing state, and the top end of the ejector rod abuts against the back face of the keycap; then set up according to pressure piece 6 again in the high position of setting for, walk according to pressure piece 6 along the key cap long limit that distributes together along pressure sensor 2, can realize according to the 6 effect ejector pin 1 of pressure piece and upwards ejecting settlement distance with the key cap, at this moment, can acquire the reaction force size of key cap in real time through pressure sensor 2 to obtain the effort curve, judge the good or bad of key cap through the effort curve contrast with the standard.

Example three:

the key cap detection device 100 of the present embodiment is a push-out type, and includes a Z-axis driving member 3, a pressure sensor 2 driven by the Z-axis driving member 3 to move up and down, a push-out rod 1 disposed at a sensing end of the pressure sensor 2 and pushing up the key cap from the bottom of the key cap by a set distance, and an X-axis driving member 7 driving the pressure sensor 2 to move along the long side of the keyboard as a whole.

In this embodiment, the ejector rod 1 is connected to the pressure sensor 2.

The pressure sensor 2 is used for detecting the reaction force of the ejection rod 1 on the key cap. The ejector rod 1 is arranged at the sensing end of the pressure sensor 2 and moves up and down along with the pressure sensor 2 to eject the keycap. This embodiment requires a separate Z-axis motion at specific individual key cap positions for detection.

Example four:

the embodiment is a key cap detection device 100 of a push-out type, which includes a push-out rod 1 for pushing up a key cap from the bottom of the key cap by a set distance, and a pressure sensor 2 for detecting the magnitude of the reaction force of the key cap on the push-out rod 1.

In the present embodiment, the ejector rod 1 is provided separately from the pressure sensor 2.

The mobilizable setting of knock-out pole 1 is on a backup pad 4, and pressure sensor 2 sets up on a Z axle driving piece 3, and the response end drive knock-out pole 1 of 3 drive pressure sensor 2 of through Z axle driving piece upwards or downwards sets for the distance with the key cap is ejecting, and this embodiment needs to utilize and carries out solitary Z axle motion in concrete each key cap position when detecting.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a key cap detection device of formula of liftout which characterized in that: the key cap ejection device comprises an ejection rod for ejecting the key cap outwards for a set distance from the back of the key cap, and a pressure sensor for detecting the reaction force of the ejection rod on the key cap, wherein the ejection rod is movably arranged on a support plate up and down; the pressure sensor is characterized in that a mounting bracket is arranged at the sensing end of the pressure sensor, and a pressing piece for pressing the ejection rod downwards is arranged on the mounting bracket.

2. The lift-out keycap detection apparatus of claim 1, wherein: the ejection rod is provided with a plurality of key caps which correspond to the key caps to be detected; or the ejection rods are distributed according to the designed points to be detected on the keycap to be detected.

3. The lift-out keycap detection apparatus of claim 1, wherein: the upper end of the ejector rod is provided with an annular bulge for erecting the support plate without falling.

4. The lift-out keycap detection apparatus of claim 1, wherein: the pressing piece is a roller or a pressing plate with a guide inclined plane.

5. The lift-out keycap detection apparatus of claim 1, wherein: during detection, the supporting plate is tightly pressed on the surface of the keyboard to play a role in stabilizing the keyboard, at the moment, the back surface of the keycap supports the bottom end of the ejector rod and ejects the upper surface of the ejector rod by a height which is larger than a set distance for ejecting the keycap.

6. The lift-out keycap detection apparatus of claim 1, wherein: during detection, the keyboard is placed above the supporting plate, the length of the ejector rod is set to be higher than the surface of the supporting plate in a natural placing state, and the top end of the ejector rod abuts against the back face of the keycap.

7. The lift-out keycap detection apparatus of claim 1, wherein: the keyboard is characterized by further comprising an X-axis driving piece and a Z-axis driving piece, wherein the pressure sensor is driven by the X-axis driving piece to move on a Z axis, and the pressure sensor is driven by the X-axis driving piece to integrally move along the long edge of the keyboard.

8. The lift-out keycap detection apparatus of claim 1, wherein: the ejection rod is arranged at the sensing end of the pressure sensor and moves up and down along with the pressure sensor.