CN204789382U - Electronic component appearance inspection device - Google Patents

Abstract

The utility model discloses an electronic component outward appearance detection device, it contains base, conveying mechanism, feeding mechanism, sensor, a plurality of getting for instance module and controller. The conveying mechanism comprises a rotating disc, a motor and an angle encoder, the rotating disc is horizontally arranged, the motor is arranged on the base and connected with the rotating disc and can drive the rotating disc to rotate horizontally, and the angle encoder is electrically connected with the motor. The feeding mechanism comprises a vibration disc and a storage bucket, the vibration disc is arranged on the base, the storage bucket is provided with a feeding channel which is arranged in the vibration disc, and the vibration disc extends out of the discharging track and the tail end of the discharging track extends to the upper part of the rotating disc. The sensor is arranged corresponding to the rotating disc and is adjacent to the tail end of the blanking track. The image capturing modules are arranged on the base, and each image capturing module is respectively arranged close to the surrounding rotating disk. The controller is electrically connected with the encoder, the sensor and each image capturing module. The angle encoder can accurately position the rotating disk in the rotating direction, and the detection accuracy is ensured.

Description

Electronic component appearance inspection device

technical field

The utility model relates to an electronic component appearance detection device, in particular to an electronic component appearance detection device for detecting micro-sized electronic components.

Background technique

Existing electronic component appearance inspection devices generally use a vibrating plate to arrange the electronic components on a rotating disk. Classify and collect according to the test results. There are following shortcomings in the prior art that need to be improved.

When the rotating disk moves, the electronic components that are too light in weight cannot be fixed on the rotating disk, and the electronic components will move along with the moving of the rotating disk, thus reducing the accuracy of the lens image acquisition. Therefore, the existing vibrating disk does not Suitable for micro-sized parts.

Most of the existing vibrating discs are equipped with unloading tracks that go around multiple layers, thereby prolonging the conveying distance of the materials, so that more materials can be accommodated to facilitate the control of the discharge speed. However, the micro-sized material will be easily worn when transported over a long distance, so the existing vibrating plate is not suitable for the micro-sized material.

Moreover, the existing electronic component appearance detection device senses the position of the electronic component by corresponding to each lens to sense the position of the electronic component to take an image. Multiple positioning by multiple sensors will cause error addition.

In view of this, the author of the present invention, aiming at the above-mentioned prior art, devotes himself to research and cooperates with the application of theories to try his best to solve the above-mentioned problems, which becomes the goal of the author's improvement.

Utility model content

The utility model provides an electronic component appearance detection device for detecting micro-sized electronic components.

The utility model provides an electronic component appearance detection device, which comprises a base, a conveying mechanism, a feeding mechanism, a sensor, a plurality of imaging modules and a controller. The conveying mechanism includes a rotating disk, a motor and an angle encoder. The rotating disk is arranged horizontally. The motor is arranged on the base and connected to the rotating disk to drive the rotating disk to rotate horizontally. The angle encoder is electrically connected to the motor. The feeding mechanism includes a vibrating plate and a material storage barrel. The vibrating plate is arranged on the base. The material storing barrel has a feeding channel arranged in the vibrating plate. The vibrating plate extends out of the feeding track and the end of the feeding track extends to above the rotating disk. The sensor is arranged corresponding to the rotating disk and adjacent to the end of the discharge track. A plurality of imaging modules are arranged on the base, and each imaging module is arranged adjacent to the rotating disk. The controller is electrically connected to the encoder, the sensor and each imaging module.

Preferably, the feeding mechanism includes a destaticizing fan and the air outlet direction of the destaticizing fan is arranged toward the vibrating plate; the conveying mechanism includes an electrostatic brush, which is arranged on the base and contacts the rotating disc; a whole row of tracks is formed in the vibrating plate , the entire row of rails extends in a single-circle ring and the entire row of rails is connected to the blanking rail; a buffer is arranged between the vibrating plate and the base; the sensor is a blocking optical sensor.

Preferably, the imaging module can include a photographic lens and the photographic lens is disposed toward the rotating disk, the imaging module includes an upright slide rail, the longitudinal direction of the upright slide rail is parallel to the forward direction of the rotating disk, and the upright slide rail can slide set up a photographic lens. Preferably, the imaging module may also include a photographic lens and a reflective mirror, the photographic lens is disposed facing the reflective mirror, and the reflective mirror is disposed corresponding to the rotating disk.

Preferably, the electronic component appearance inspection device further includes a material distribution mechanism, the material distribution mechanism includes a plurality of collecting boxes arranged on the base and a plurality of blowing nozzles corresponding to each collecting box, and each blowing nozzle is oriented to the corresponding The collecting box is configured and the rotating disk is between each blowing nozzle and the corresponding collecting box. There is a solenoid valve on each blowing nozzle and each solenoid valve is electrically connected to the controller; each collecting box is respectively set There is a movable buffer baffle, and each blowing nozzle is arranged towards the movable buffer baffle in the corresponding collecting box; the movable buffering baffle can be pivotally arranged in the collecting box; each blowing nozzle can be pivoted by a pivot shaft respectively The base is rotationally connected, and each pivot shaft and the rotating disk are arranged parallel to each other.

The electronic component appearance detection device of the present utility model can accurately locate the rotation direction of the rotating disk through the angle encoder, so it only needs to use a sensor to locate the origin of the path of the electronic component, and then it can accurately infer that the electronic component arrives at each location. Like the time of the module and the distribution mechanism.

Description of drawings

FIG. 1 is a three-dimensional schematic view (1) of an electronic component appearance inspection device according to a preferred embodiment of the present invention.

Fig. 2 is a three-dimensional schematic diagram (2) of an electronic component appearance inspection device according to a preferred embodiment of the present invention.

Fig. 3 is a three-dimensional schematic diagram (3) of an electronic component appearance inspection device according to a preferred embodiment of the present invention.

FIG. 4 is a three-dimensional schematic view (4) of an electronic component appearance inspection device according to a preferred embodiment of the present invention.

Fig. 5 is a top view of an electronic component appearance inspection device according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of a conveying mechanism and a feeding mechanism in the electronic component appearance inspection device according to a preferred embodiment of the present invention.

FIG. 7 is a three-dimensional schematic diagram of a material distributing mechanism in the electronic component appearance inspection device according to a preferred embodiment of the present invention.

FIG. 8 is another schematic perspective view of the distributing mechanism in the electronic component appearance inspection device according to the preferred embodiment of the present invention.

Among them, reference signs

100 base

200 conveying mechanism

210 sensors

220 rotating disk

230 motor

231 drive shaft

240 electrostatic brush

300 feeding mechanism

310 vibration plate

311 full track

320 storage barrel

321 supply channel

330 feeding track

400 imaging module

410 photography lens

420 reflector

430 vertical slide rail

500 distribution mechanism

510 collection box

511 active buffer baffle

520 mouthpiece

521 solenoid valve

522 pivot axis

Detailed ways

Referring to Fig. 1 to Fig. 5, the preferred embodiment of the present utility model provides a kind of appearance detection device of electronic component, and it comprises a base 100, a conveying mechanism 200, a feeding mechanism 300, a sensor 210, a plurality of image-taking Module 400 , a controller (not shown in the figure) and a distribution mechanism 500 . The form of the base 100 is not limited in this embodiment.

Referring to FIG. 6 , the conveying mechanism 200 is disposed on the base 100 . In this embodiment, the conveying mechanism 200 includes a rotating disk 220 , a motor 230 , an angle encoder (not shown in the figure) and an electrostatic brush 240 . In this embodiment, the motor 230 is preferably a direct drive motor (Direct Drive Motor, DD motor). The motor 230 is disposed on the base 100 and its drive shaft 231 is arranged vertically. In this embodiment, the rotating disk 220 is a circular transparent disk made of glass. The rotating disk 220 is arranged horizontally and connected to the motor 230 for power. This can be driven by the motor 230 to rotate horizontally. The angle encoder has built-in circular angle coordinates, and the angle encoder is electrically connected to the motor 230 to obtain the angular position of the rotating disk 220 (or the motor 230 ). The electrostatic brush 240 is disposed on the base 100 and contacts the rotating disk 220 . When the rotating disk 220 rotates, it can rub against the electrostatic brush 240 to generate positive charges on the rotating disk 220 .

The feeding mechanism 300 is disposed on the base 100, and includes a vibrating plate 310, a storage tank 320, and a static removal fan (not shown in the figure). In this embodiment, the vibrating plate 310 and the storage barrel 320 are preferably both disposed on the base 100 , and a buffer (not shown) is disposed between the vibrating plate 310 and the base 100 . The storage tank 320 is used to accommodate the electronic components to be tested (not shown in the figure). The storage tank 320 has a feed channel 321 to send out the electronic components in the storage tank 320. The feed channel 321 is disposed towards the vibrating plate 310 And electronic components can be put into the vibrating plate 310 . However, the present invention does not limit the storage tank 320 to be disposed on the base 100 . For example, the storage tank 320 may be attached above the vibration plate 310 and the supply channel 321 of the storage tank 320 is disposed toward the inside of the vibration plate 310 . A whole row of rails 311 is formed in the vibrating plate 310, and the whole row of rails 311 extends into a single ring. The electronic components put into the vibrating plate 310 fall into the whole row of rails 311 and are vibrated by the vibrating plate 310 to be arranged in a row in the whole row of rails 311. The utility model controls the feeding speed of the electronic components by controlling the discharge speed of the feeding channel 321. The entire track 311 of the electronic components in the vibrating plate 310 passes through a single-turn path, so the time for the electronic components to be vibrated can be shortened, and by This avoids shock damage. The buffer can reduce the shaking of the base 100 caused by the vibration of the vibrating disk 310 , thus preventing the shaking of the electronic components on the rotating disk 220 from affecting the imaging accuracy. The air outlet direction of the anti-static fan is arranged toward the vibrating plate 310 , and most of the electronic components are encapsulated by epoxy resin (Eploxy), so it is easy to carry negative charges. The anti-static fan can remove the negative charges carried by the electronic components in the vibrating plate 310 . The entire row of rails 311 extends out of the first feed rail 330 connected thereto, and the electronic components that complete the entire row are sent into the feed rail 330, and the uncharged electronic components rub against the feed rail 330 when passing through the feed rail 330, so when the electronic components When it is conveyed to the end of the discharge track 330, it has a small negative charge. The end of the unloading track 330 extends to the top of the rotary disc 220, and the unloading track 330 is preferably configured along a tangent to the direction of rotation of the rotary disc 220. When the rotary disc 220 rotates, the electronic components are drawn from the end of the unloading track 330 one by one. Once dropped onto the rotating disk 220 , the negatively charged subcomponents can be absorbed and fixed by the positively charged rotating disk 220 and the electronic components are transported along the circular path as the rotating disk 220 rotates.

In this embodiment, the sensor 210 is preferably an interrupting optical sensor 210 , the sensor 210 is disposed on the base 100 , and is configured corresponding to the rotating disk 220 to generate a light beam penetrating the rotating disk 220 . The sensor 210 is preferably arranged adjacent to the end of the feeding track 330, and the end of the loading and unloading track 330 is arranged before the sensor 210 along the rotation direction of the rotary disk 220. The electronic components are transported by the rotating disk 220 through the sensor 210 to block the light beam generated by the sensor 210 .

Referring to FIG. 1 to FIG. 5 , the imaging module 400 is disposed on the base 100 , and the imaging module 400 is arranged around the rotating disk 220 . Each imaging module 400 is disposed adjacent to the rotating disk 220 along different angles according to different imaging angles. Each imaging module 400 includes a photographing lens 410 , and the photographing lens 410 can be directly disposed toward the rotating disk 220 . The imaging module 400 may further include a reflector 420 as required, the photographic lens 410 is arranged facing the reflector 420, and the reflector 420 is disposed corresponding to the rotating disk 220 so as to reflect the electronic components carried on the rotating disk 220 for the photographic lens 410 Capture images of electronic components. The imaging module 400 may include an upright sliding rail 430 , which is arranged upright, and its longitudinal direction is parallel to the forward direction of the rotating disk 220 , and a camera lens 410 is slidably disposed on each upright sliding rail 430 .

The controller is electrically connected to the encoder and each imaging module 400, and the imaging position of each imaging module 400 is pre-established in the controller according to the coordinates of the angle encoder, and the rotation speed of the rotating disk 220 is also pre-established in the controller. . For a single electronic component, when the electronic component passes the sensor 210 , the sensor 210 can trigger the controller to obtain the angular position of the motor 230 from the angle encoder, thereby defining the origin of the electronic component's path. The controller can calculate the time point when the electronic component reaches the imaging position of each imaging module 400 according to the origin of the path traveled by the electronic component and the rotation speed of the rotating disk 220, so the controller drives the corresponding imaging module at these time points The 400 captures images from various angles of view of the electronic component, and the controller can determine whether the appearance of the electronic component is qualified by comparing the acquired image with a reference image pre-built in the controller.

7 and 8, the material distribution mechanism 500 includes a plurality of collecting boxes 510 arranged on the base 100 and a plurality of blowing nozzles 520 corresponding to each collecting box 510, and each blowing nozzle 520 faces the corresponding collecting material respectively. The box 510 is configured and the rotating disk 220 is interposed between each blowing nozzle 520 and the corresponding collection box 510. The position of each blowing nozzle 520 is pre-established in the controller according to the coordinates of the angle encoder. Each blowing nozzle 520 is respectively connected to a positive pressure air source and each blowing nozzle 520 is respectively provided with a solenoid valve 521 . Each solenoid valve 521 is electrically connected to the controller, so the controller can control the blowing time of each blowing nozzle 520 through the solenoid valve 521, and the controller can blow each electronic component into the air according to the determination result of each electronic component. In the corresponding collection box 510. Each collecting box 510 is respectively provided with a movable buffer baffle 511, and each blowing nozzle 520 is configured towards the movable buffer baffle 511 in the corresponding collecting box 510 respectively, when the blowing nozzle 520 will rotate the electronic components on the disk 220 When blowing into the corresponding collection box 510, the electronic components first hit the movable buffer baffle 511 to decelerate, and then fall into the bottom of the collection box 510, so that the electronic components can be prevented from being damaged by hitting the inner wall of the collection box 510 at high speed. The punching baffle can be a soft board or a hard board pivotally arranged in the collecting box 510, and the present invention is not limited thereto.

Referring to FIG. 8 , each blowing nozzle 520 is pivotably connected to the base 100 by a pivot shaft 522 respectively, and each pivot shaft 522 and the rotating disk 220 are arranged parallel to each other, so each blowing nozzle 520 can be turned upside down from the rotating disk. Back off on 220.

Referring to FIG. 1 and FIG. 8 , due to the tiny size of the electronic components, both the image capturing module 400 and the distribution blow nozzle 520 must be precisely positioned, especially in the direction of rotation of the rotating disk 220 . The rotating disk 220 will be worn during the process of conveying electronic components, which is a consumable material. The blowing nozzles 520 of the present invention can be turned upside down, and the lens 310 of the imaging module 400 can be moved up along the vertical slide rail 430, so that the Make room for the replacement of the rotating disk 220, and it will not cause displacement in the direction of rotation of the rotating disk 220 when it is turned upside down. Therefore, after the rotating disk 220 is replaced, the imaging module 400 and the distribution blowing nozzle 520 can be flipped back to their original positions, and There is no need to re-calibrate the rotation direction of the rotating disk 220, which can reduce maintenance time.

The electronic component appearance detection device of the present utility model can accurately locate the rotation direction of the rotating disk 220 through the angle encoder, so it is only necessary to use a sensor 210 to locate the origin of the path of the electronic component, and then the electronic component can be accurately inferred The time to arrive at each imaging module and the distributing mechanism 500. Its positioning is precise, so it can take images at a faster speed, and the image quality is better, which can ensure the accuracy of detection.

The above is only a preferred embodiment of the utility model, not to limit the patent scope of the utility model, and other equivalent changes using the patent spirit of the utility model shall all belong to the appended claims of the utility model protected range.

Claims (13)

1. An electronic component appearance detection device, characterized in that, comprising: a base, A conveying mechanism, including a rotating disk, a motor and an angle encoder, the rotating disk is arranged horizontally, the motor is arranged on the base and connected to the rotating disk to drive the rotating disk to rotate horizontally, the angle encoder is electrically connected to the motor; A feeding mechanism includes a vibrating plate and a material storage barrel, the vibrating plate is arranged on the base, the material storing barrel has a feeding channel disposed toward the vibrating plate, the vibrating plate extends out of the feeding track and The end of the feeding track extends to the top of the rotating disk; A sensor is arranged corresponding to the rotating disk and adjacent to the end of the feeding track; A plurality of image-taking modules are arranged on the base, and each image-taking module is adjacent to and arranged around the rotating disk; and A controller is electrically connected to the encoder, the sensor and each of the imaging modules. 2 . The electronic component appearance inspection device according to claim 1 , wherein the feeding mechanism comprises a destaticizing fan, and the air outlet direction of the destaticizing fan is arranged toward the vibrating plate. 3 . 3 . The electronic component appearance inspection device according to claim 1 , wherein the conveying mechanism comprises an electrostatic brush, and the electrostatic brush is arranged on the base and contacts the rotating disk. 4 . 4 . The electronic component appearance inspection device according to claim 1 , wherein a whole row of tracks is formed in the vibrating plate, the whole row of tracks extends in a single circle and the whole row of tracks connects to the feeding track. 5 . 5 . The electronic component appearance inspection device according to claim 1 , wherein the imaging module comprises a photographic lens and the photographic lens is disposed facing the rotating disk. 6 . 6. The electronic component appearance inspection device according to claim 5, wherein the imaging module comprises an upright slide rail, the longitudinal direction of the upright slide rail is parallel to the forward direction of the rotating disk, and the upright slide rail One of the photographic lenses is slidably set on the camera. 7. The electronic component appearance inspection device according to claim 1, wherein the imaging module comprises a photographic lens and a reflector, the photographic lens is arranged facing the reflector, and the reflector is arranged corresponding to the rotating disk . 8. The electronic component appearance inspection device as claimed in claim 1, further comprising a material distribution mechanism, the material distribution mechanism includes a plurality of collection boxes arranged on the base and corresponding to each collection box A plurality of blowing nozzles, each of the blowing nozzles is respectively arranged towards the corresponding collection box and the rotating disc is interposed between each of the blowing nozzles and the corresponding collection box, and each of the blowing nozzles is respectively provided with a solenoid valve And each solenoid valve is electrically connected to the controller. 9. The electronic component appearance detection device as claimed in claim 8, wherein a movable buffer baffle is respectively arranged in each of the collecting boxes, and each of the blowing nozzles is respectively directed towards the movable part in the corresponding collecting box. Buffer baffle configuration. 10 . The electronic component appearance inspection device according to claim 9 , wherein the movable buffer baffle is pivotally arranged in the collecting box. 11 . 11. The electronic component appearance inspection device according to claim 8, wherein each of the blowing nozzles is pivotally connected to the base via a pivot shaft, and each of the pivot shafts and the rotating disk are arranged parallel to each other . 12 . The electronic component appearance inspection device according to claim 1 , wherein a buffer is arranged between the vibrating plate and the base. 13 . 13. The electronic component appearance inspection device according to claim 1, wherein the sensor is a blocking optical sensor.