Keycap automatic detection device of keyboard

Abstract

The utility model discloses an automatic keycap detection device of a keyboard, keycaps are correspondingly arranged in each keycap feeding channel in a stock bin, keycap blocking pieces at the lower ends of the keycap feeding channels prevent the keycaps from falling out, a keycap tray can slide to the position under the keycap stock bin, a suction nozzle support on the keycap tray can be lifted, and the keycaps can be automatically detected through the suction nozzle support. Suction nozzles on a suction nozzle support are used for adsorbing keycaps at the lower ends of the keycap feeding channels in a negative pressure mode, a backlight module is fixedly installed at the moving end of a mechanical arm, and light guide columns installed on the surface of the backlight module can be correspondingly inserted into the keycaps on a keycap tray and irradiate light into the keycaps. The negative pressure air hole of the light guide column can adsorb the bottom face of the inner side of the keycap in a negative pressure mode, the moving end of the mechanical arm can send the keycap adsorbed by the light guide column in the negative pressure mode to the imaging area of the camera to be imaged, and the control system can judge whether the keycaps are qualified or not according to pictures. And the detection efficiency is extremely high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a keyboard production auxiliary equipment, especially a keyboard keycap automatic detection device. BACKGROUND

[0002] In the keyboard automation assembly operation, often need before assembly to the keycap of keyboard detection, including appearance detection and transmittance detection, thereby judge whether the keycap exists quality defect, and the present keycap detection is to the keycap detection one by one, and the detection efficiency is low, is not favorable to the efficient assembly of keyboard. CONTENT OF UTILITY MODEL

[0003] In order to make up the above insufficient, the utility model provides a kind of keycap automatic detection device of keyboard, the keycap automatic detection device of keyboard can be synchronous detection to all keycaps on a keyboard, detection is comprehensive, and detection efficiency is high.

[0004] The utility model discloses a keyboard keycap automatic detection device, including detection platform, keycap storehouse, keycap tray, tray conveying device, manipulator, backlight module, light guide column, negative pressure providing device, camera and control system, the storehouse fixed mounting is in detection platform one end top, forms several keycap feeding channels in the storehouse, all the keycaps on an keyboard can be one by one corresponding from top to bottom stacked and accommodated in each keycap feeding channel of the storehouse, the lower end of keycap feeding channel forms keycap blocking piece, and the keycap blocking piece can prevent the keycap from falling under the action of gravity, the keycap tray can reciprocatingly slide and be installed on the detection platform, and the keycap tray can slide to the storehouse directly below, and the upper side surface on the keycap tray forms the suction nozzle support that can lift and move, is equipped with the suction nozzle on the suction nozzle support and is opposite with the lower end opening of each keycap feeding channel of the keycap storehouse, the suction nozzle can negative pressure adsorption one keycap in the lower end of keycap feeding channel, the tray conveying device can drive the keycap tray reciprocatingly slide on the detection platform, the manipulator is installed in the middle position of detection platform, and the backlight module is fixedly installed on the movement end of manipulator, and several light guide columns are fixedly installed on the surface of backlight module, and each light guide column can be one by one corresponding and insert in each keycap on the keycap tray, the surface of backlight module and the outer side of light guide column are equipped with shading layer, and the light in the backlight module can be shot into the keycap through the end of light guide column, the inner side of light guide column is equipped with negative pressure air hole, the negative pressure air hole can negative pressure adsorption the inner side bottom surface of keycap, the other end of detection platform is fixedly equipped with camera mounting support, and the camera is fixedly installed on the camera mounting support, the movement end of manipulator can send the keycap that is negative pressure adsorbed by light guide column to the camera imaging area, and the camera can image all the keycaps and transmit the picture to the control system, and the control system can judge whether each keycap is qualified according to the picture, and the negative pressure providing device provides negative pressure for the suction nozzle on the keycap tray and the negative pressure air hole in the inner side of light guide column.

[0005] As a further improvement of the utility model, at least two negative pressure air holes extending to the inside of the backlight module are arranged in the light guide column, a gas channel is arranged in the inside of the backlight module, the negative pressure air holes are communicated with the gas channel, and the gas channel is communicated with the negative pressure providing device.

[0006] As a further improvement of the utility model, a recess is arranged on the top surface of the light guide column.

[0007] As a further improvement of the utility model, the backlight module and the light guide column are made of transparent acrylic material, and a shading coating is coated on the surface of the backlight module and the circumferential outer wall of the light guide column.

[0008] As a further improvement of the utility model, the key cap blocking piece at the lower end of the key cap feeding channel is an elastic flange that reduces the opening size of the key cap feeding channel, and the outer wall of the key cap opening end can be elastically clamped to the surface of the elastic flange to prevent the last key cap from separating from the key cap feeding channel.

[0009] As a further improvement of the utility model, a linear track is arranged on the detection platform, the key cap tray can slide back and forth along the linear track, and the tray conveying device is a cylinder or a motor and a screw nut mechanism that drive the key cap tray to slide back and forth.

[0010] As a further improvement of the utility model, an opening groove extending upwards and downwards is arranged on the key cap tray, the suction nozzle support slides up and down and is inserted into the opening groove, an elastic member is arranged in the opening groove, the elastic member provides an upward elastic force to the suction nozzle support, an electromagnet is arranged on the bottom surface of the opening groove, an iron piece is arranged on the lower side surface of the suction nozzle support and faces the electromagnet, and the electromagnet can attract the iron piece on the suction nozzle support to make the suction nozzle support descend when the electromagnet is powered.

[0011] As a further improvement of the utility model, a negative pressure cavity that communicates with the negative pressure providing device is arranged in the suction disc support, and all the suction nozzles communicate with the negative pressure cavity.

[0012] As a further improvement of the utility model, the mechanical hand is a multi-joint mechanical hand.

[0013] As a further improvement of the utility model, a display screen and an alarm device are further arranged, the display screen can display the pictures taken by the camera and mark and display the key caps that do not meet the requirements, and the alarm device can send an alarm for unqualified products according to the detection result of the control system.

[0014] The utility model has the beneficial technical effects that the utility model realizes the full-automatic feeding of all the key caps of the full keyboard through the specially designed key cap bin and key cap tray, simultaneously adsorbs the inner bottom surfaces of all the key caps on the full keyboard through the light guide column on the backlight module under negative pressure, sends them to the camera through the mechanical hand, provides the light effect of the simulation keyboard through the lightening of the backlight module, synchronously images and detects all the key caps through the camera, can detect all the key caps on the keyboard at one time, the detection efficiency is extremely high, and the distribution state of the key caps on the keyboard is simulated to detect, and the detection result precision is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the perspective view of the utility model;

[0016] Figure 2 It is the backlight module and light guide column assembly perspective view of the utility model;

[0017] Figure 3 It is the key cap tray and tray conveying device assembly perspective view of the utility model;

[0018] Figure 4 It is the three-dimensional view of the nozzle support of the utility model;

[0019] Figure 5 It is the state diagram of the key cap tray of the utility model adsorbing key caps. DETAILED DESCRIPTION

[0020] Embodiment: a key cap automatic detection device of a keyboard, including detection platform 1, key cap 9 stock bin 2, key cap 9 tray 3, tray conveying device 4, mechanical arm 5, backlight module 6, light guide column 7, negative pressure providing device, camera 8 and control system, the stock bin is fixedly installed on the top of one end of detection platform 1, and a plurality of key cap 9 feeding channels are formed in the stock bin, all the key caps 9 on one keyboard can be sequentially correspondingly stacked and accommodated in each key cap 9 feeding channel of the stock bin from top to bottom, and the lower end of the key cap 9 feeding channel is formed with a key cap 9 blocking piece, which can prevent the key cap 9 from falling out under the action of gravity, the key cap 9 tray 3 is slidably installed on the detection platform 1, and the key cap 9 tray 3 can be slid to be directly below the key cap 9 stock bin 2, a suction nozzle support 32 capable of lifting motion is formed on the upper side surface of the key cap 9 tray 3, and a suction nozzle 33 opposite to the lower end opening of each key cap 9 feeding channel of the key cap 9 stock bin 2 is arranged on the suction nozzle support 32, the suction nozzle 33 can negatively adsorb one key cap 9 located at the lowermost end of the key cap 9 feeding channel, the tray conveying device 4 can drive the key cap 9 tray 3 to reciprocally slide on the detection platform 1, the mechanical arm 5 is installed at the middle position of the detection platform 1, the backlight module 6 is fixedly installed on the moving end of the mechanical arm 5, a plurality of light guide columns 7 are fixedly installed on the surface of the backlight module 6, each light guide column 7 can be sequentially inserted into each key cap 9 on the key cap 9 tray 3, the surface of the backlight module 6 and the outer side surface of the light guide column 7 are both provided with a light shielding layer, the light in the backlight module 6 can be emitted into the key cap 9 through the end of the light guide column 7, the inner side of the light guide column 7 is provided with a negative pressure air hole 71, the negative pressure air hole 71 can negatively adsorb the inner side bottom surface of the key cap 9, the other end of the detection platform 1 is fixedly provided with a camera 8 mounting bracket, the camera 8 is fixedly installed on the camera 8 mounting bracket, the moving end of the mechanical arm 5 can send the key cap 9 negatively adsorbed by the light guide column 7 to the imaging area of the camera 8, the camera 8 can image all the key caps 9 and transmit pictures to the control system, the control system can judge whether each key cap 9 is qualified according to the pictures, and the negative pressure providing device provides negative pressure for the suction nozzle 33 on the key cap 9 tray 3 and the negative pressure air hole 71 on the inner side of the light guide column 7.

[0021] Before detection, the keycaps 9 are placed one by one in the keycap 9 feeding channels of the keycap 9 warehouse 2 for storage, and the lowermost keycap 9 is blocked by the keycap 9 blocking piece at the lower end of the keycap 9 feeding channel and cannot fall out under the action of gravity. During detection, the keycap 9 tray 3 moves to directly below the keycap 9 warehouse 2 under the drive of the tray conveying device 4, the suction nozzle support 32 on the keycap 9 tray 3 moves upwards, the suction nozzles 33 on the suction nozzle support 32 are in butt contact with the bottoms of the keycaps 9 at the lower ends of the keycap 9 feeding channels of the keycap 9 warehouse 2, the suction nozzles 33 suck the bottoms of the keycaps 9, the suction nozzle support 32 lowers the suction nozzles 33 to pull out the keycaps 9 from the lower ends of the keycap 9 feeding channels, the keycap 9 tray 3 moves to a designated position under the drive of the tray conveying device 4, the mechanical arm 5 with the backlight module 6 and the light guide column 7 thereon reaches directly above the keycap 9 tray 3 at the designated position, the light guide column 7 is inserted into each keycap 9 and sucks the inside bottom of the keycap 9, the suction nozzles 33 on the keycap 9 tray 3 release the keycaps 9, and the keycaps 9 are firmly sucked on the light guide column 7. The mechanical arm 5 with the backlight module 6 and the light guide column 7 thereon reaches the imaging area of the camera 8, the camera 8 images the whole set of keycaps 9, and can take pictures before and after the light of the backlight module 6 is turned on, which are respectively used to check the surface defects and light transmission of the keycaps 9. The control system judges whether each keycap 9 is qualified according to the pictures taken by the camera 8, realizes the synchronous detection of the whole set of keycaps 9 on the keyboard, has high detection efficiency, and can perform double detection of the appearance and light transmission of the keycaps 9, and the detection is comprehensive.

[0022] At least two negative pressure air holes 71 extending into the inside of the backlight module 6 are arranged in the light guide column 7, an air path 61 is arranged in the inside of the backlight module 6, the negative pressure air holes 71 are in communication with the air path 61, and the air path 61 is in communication with a negative pressure providing device. Multiple groups of negative pressure air holes 71 stably adsorb the keycaps 9, so that the keycaps 9 are stable during photographing.

[0023] A relief groove 72 is arranged on the top surface of the light guide column 7, which is used to avoid the mounting structure on the inside bottom of the keycap 9.

[0024] The backlight module 6 and the light guide column 7 are both made of transparent acrylic material, and a light-shielding coating is coated on the surface of the backlight module 6 and the circumferential outer wall of the light guide column 7. It is ensured that light only enters the keycap 9, so as to avoid affecting the picture clarity of the camera 8.

[0025] The keycap 9 blocking piece at the lower end of the keycap 9 feeding channel is an elastic flange with a reduced opening size of the keycap 9 feeding channel, and the outer sidewall of the opening end of the keycap 9 can be elastically clamped on the surface of the elastic flange to prevent the lowermost keycap 9 from separating from the keycap 9 feeding channel.

[0026] The detection platform 1 is provided with a linear track 31, the keycap 9 tray 3 can reciprocate along the linear track 31, and the tray conveying device 4 is a cylinder or a motor and a screw nut mechanism for driving the keycap 9 tray 3 to reciprocate.

[0027] The keycap 9 tray 3 is provided with an open slot extending upward and downward, the suction nozzle support 32 is slidably inserted into the open slot, the open slot is provided with an elastic member, the elastic member provides an upward elastic force for the suction nozzle support 32, the bottom surface of the open slot is provided with an electromagnet, the lower surface of the suction nozzle support 32 is provided with an iron piece opposite to the electromagnet, and the electromagnet can attract the iron piece on the suction nozzle support 32 to make the suction nozzle support 32 descend when the electromagnet is powered. This structure is simple and occupies small space, in addition, the keycap 9 tray 3 can also be driven to rise and fall by a cylinder or an electric push rod.

[0028] The suction disc support is provided with a negative pressure cavity in communication with the negative pressure providing device, and all the suction nozzles 33 are in communication with the negative pressure cavity.

[0029] The mechanical hand 5 is a multi-joint mechanical hand 5.

[0030] A display screen and an alarm device are further provided, the display screen can display the pictures taken by the camera 8 and can mark and display the keycaps 9 that do not meet the requirements, and the alarm device can issue an unqualified product alarm according to the detection result of the control system. Workers can conveniently know the conditions of the keycaps 9 in real time and accurately know which keycap 9 is unqualified.

Claims

1. An automatic keycap detection apparatus for a keyboard, characterized by: The application relates to a keyboard cap detection device, which comprises a detection platform (1), a keyboard cap warehouse (2), a keyboard cap tray (3), a tray conveying device (4), a manipulator (5), a backlight module (6), light guide columns (7), a negative pressure providing device, a camera (8) and a control system. The warehouse is fixedly arranged above one end of the detection platform, a plurality of keyboard cap feeding channels are formed in the warehouse, all the keyboard caps (9) on a keyboard can be one by one correspondingly stacked and accommodated in the keyboard cap feeding channels from top to bottom, a keyboard cap blocking piece is formed at the lower end of the keyboard cap feeding channel, the keyboard cap blocking piece can prevent the keyboard caps from falling out under the action of gravity, the keyboard cap tray is reciprocally slidably arranged on the detection platform and can slide to the position directly below the keyboard cap warehouse, a suction nozzle support (32) capable of lifting movement is formed on the upper side surface of the keyboard cap tray, a suction nozzle (33) opposite to the opening at the lower end of each keyboard cap feeding channel of the keyboard cap warehouse is arranged on the suction nozzle support, the suction nozzle can negatively adsorb one keyboard cap at the lowermost end of the keyboard cap feeding channel, the tray conveying device can drive the keyboard cap tray to reciprocally slide on the detection platform, the manipulator is arranged at the middle position of the detection platform, the backlight module is fixedly arranged on the moving end of the manipulator, a plurality of light guide columns are fixedly arranged on the surface of the backlight module, each light guide column can be one by one correspondingly inserted into each keyboard cap on the keyboard cap tray, the surface of the backlight module and the outer side surface of the light guide column are provided with light shielding layers, light in the backlight module can be emitted into the keyboard cap through the end of the light guide column, the inner side of the light guide column is provided with a negative pressure air hole (71), the negative pressure air hole can negatively adsorb the inner side bottom surface of the keyboard cap, a camera mounting support is fixedly arranged at the other end of the detection platform, the camera is fixedly arranged on the camera mounting support, the moving end of the manipulator can send the keyboard cap negatively adsorbed by the light guide column to the imaging area of the camera, the camera can image all the keyboard caps and transmit the pictures to the control system, the control system can judge whether each keyboard cap is qualified according to the pictures, and the negative pressure providing device provides negative pressure for the suction nozzle on the keyboard cap tray and the negative pressure air hole on the inner side of the light guide column.

2. The automatic keycap detection apparatus of claim 1, wherein: At least two negative pressure air holes extending into the backlight module are arranged in the light guide column, an air channel (61) is arranged in the backlight module, the negative pressure air holes are communicated with the air channel, and the air channel is communicated with the negative pressure providing device.

3. The automatic keycap detection apparatus of claim 1, wherein: A recess (72) is arranged on the top surface of the light guide column.

4. The automatic keycap detection apparatus of claim 1, wherein: The backlight module and the light guide column are made of transparent acrylic material, and the surface of the backlight module and the circumferential outer side wall of the light guide column are coated with a light shielding coating.

5. The automatic keycap detection apparatus of claim 1, wherein: The keyboard cap blocking piece at the lower end of the keyboard cap feeding channel is an elastic flange with reduced opening size of the keyboard cap feeding channel, and the outer side wall of the keyboard cap opening end can be elastically clamped on the surface of the elastic flange to prevent the lowermost keyboard cap from separating from the keyboard cap feeding channel.

6. The automatic keycap detection apparatus of claim 1, wherein: A linear track (31) is arranged on the detection platform, the keyboard cap tray can reciprocally slide along the linear track, and the tray conveying device is a cylinder or a motor and a screw nut mechanism driving the keyboard cap tray to reciprocally slide.

7. The automatic keycap detection apparatus of claim 6, wherein: The key cap tray is provided with an upper and lower extending opening slot, the suction nozzle support is slidingly inserted into the opening slot, the opening slot is provided with an elastic member, the elastic member provides upward elastic force to the suction nozzle support, the bottom surface of the opening slot is provided with an electromagnet, the lower side surface of the suction nozzle support is provided with an iron member opposite to the electromagnet, and the electromagnet can attract the iron member on the suction nozzle support to make the suction nozzle support descend.

8. The automatic keycap detection apparatus of claim 7, wherein: The suction disc support is provided with a negative pressure cavity communicated with the negative pressure providing device, and all the suction nozzles are communicated with the negative pressure cavity.

9. The automatic keycap detection apparatus of claim 1, wherein: The mechanical hand is a multi-joint mechanical hand.

10. The automatic keycap detection apparatus of claim 1, wherein: A display screen and an alarm device are further provided, the display screen can display the pictures taken by the camera and mark and display the unqualified keys, and the alarm device can issue an unqualified product alarm according to the detection result of the control system.

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