TWI572859B - Device of detecting appearance of electronic components and detecting method thereof - Google Patents

Description

Electronic component appearance detecting device and detecting method thereof

The present invention relates to a detecting device and a detecting method, and more particularly to an electronic component appearance detecting device and an electronic component appearance detecting method.

The existing electronic component appearance detecting device respectively sets corresponding multi-sensors beside a plurality of image capturing modules, and when an electronic component is sent to a sensing region of one of the plurality of sensors, the sensor A sensing signal can be triggered. Then, a controller of the electronic component appearance detecting device can drive the image capturing module corresponding to the triggered sensor to capture a component image of the electronic component according to the sensing signal, and capture the component image of the electronic component. The component image is analyzed to determine if the electronic component is flawed in appearance.

However, since the electronic component is constantly moving, the existing electronic component appearance detecting device does not consider a sensing time that the sensor performs sensing and the controller determines and drives an imaging time of the image capturing module. A time difference between. Therefore, the existing electronic component appearance detecting device often occurs when the electronic component is not completely in the image capturing range at the time of shooting (that is, the image capturing module does not capture the complete electronic component). Further, the controller will have lower accuracy based on the detection result of the incomplete image of the component.

Therefore, the conventional electronic component appearance detecting device has the above-mentioned missing, and it is impossible to accurately capture the complete component image, and a more effective solution is proposed.

The main object of the present invention is to provide an electronic component appearance detecting device and an electronic component appearance detecting method for detecting micro-sized electronic components and instantly triggering image capturing.

The invention provides an electronic component appearance detecting device, which comprises a base, a conveying mechanism, a sensor, a plurality of image capturing modules, and a controller electrically connected to the sensor and the plurality of image capturing modules. The transport mechanism includes a motor disposed on the base and a rotating disk for transporting an electronic component. The sensor emits a trigger signal when detecting the passage of the electronic component. The plurality of image capturing modules are respectively disposed at a plurality of image capturing positions adjacent to the rotating disk, and image capturing the electronic components. The controller includes a time acquisition module, a timing module, the capture control module and a detection module. The time acquisition module obtains a plurality of time intervals required to transport the electronic component to each of the image capturing positions when the trigger signal is received. The timing module sends a corresponding image capturing signal when each time interval of the timing is passed. The capture control module drives the plurality of image capture modules to capture the plurality of component images according to the plurality of image capture signals. The detection module performs a detection process according to the image of the plurality of components, and generates a detection result.

The invention further provides an electronic component appearance detecting method, which is applied to an electronic component appearance detecting device including a conveying mechanism, a sensor, a plurality of image capturing modules and a controller, comprising the following steps: a) the sensing Transmitting a trigger signal when detecting an electronic component transmitted by the transport mechanism; b) receiving, by the controller, the electronic component to the plurality of image capturing positions corresponding to the plurality of image capturing modules when receiving the trigger signal a plurality of time intervals respectively required; c) driving each of the corresponding image capturing modules to perform image capturing on the electronic component and generating a plurality of component images; and d) according to the plurality of components The image is subjected to a detection process and produces a detection result indicating whether or not the appearance of the electronic component is flawed.

By calculating the transit time of the electronic component and actively triggering the image capture, the electronic component can be completely within the imaging range, and the better detection image can be obtained, thereby improving the accuracy of the detection result.

1‧‧‧Electronic component appearance detecting device

100‧‧‧Base

200‧‧‧Transportation agency

210‧‧‧ Sensor

220‧‧‧ rotating disk

230‧‧‧ motor

231‧‧‧ drive shaft

232‧‧‧Angle encoder

240‧‧‧ electrostatic brush

300‧‧‧Feeding agency

310‧‧‧Vibration plate

311‧‧‧ Entire track

320‧‧‧ storage bucket

321‧‧‧ Feeding channel

330‧‧‧Unloading track

400‧‧‧Image capture module

410‧‧‧Photographic lens

420‧‧‧Mirror

430‧‧‧Upright rails

500‧‧‧Distribution agency

510‧‧‧ aggregate box

511‧‧‧Activity buffer baffle

520‧‧‧Blowing mouth

521‧‧‧ solenoid valve

522‧‧‧ pivot shaft

600‧‧‧ controller

601‧‧‧Time acquisition module

602‧‧‧Time Module

603‧‧‧ capture control module

604‧‧‧Test module

605‧‧‧Location Detection Module

606‧‧‧Classification module

700‧‧‧ memory

701‧‧‧ computer program

S100-S112‧‧‧Test steps

S200-S210‧‧‧Feeding steps

S1040-S1046‧‧‧ time interval acquisition steps

S300-S304‧‧‧Display and classification steps

1 is a first perspective view of an electronic component appearance detecting device according to a first embodiment of the present invention.

2 is a second perspective view of the electronic component appearance detecting device according to the first embodiment of the present invention.

Fig. 3 is a third perspective view showing the electronic component appearance detecting device of the first embodiment of the present invention.

Fig. 4 is a fourth perspective view showing the electronic component appearance detecting device of the first embodiment of the present invention.

Fig. 5 is a plan view showing an electronic component appearance detecting device according to a first embodiment of the present invention.

Figure 6 is a schematic view of a conveying mechanism and a feeding mechanism of a first embodiment of the present invention.

Figure 7 is a first perspective view of the dispensing mechanism of the first embodiment of the present invention.

Figure 8 is a second perspective view of the dispensing mechanism of the first embodiment of the present invention.

Figure 9 is a block diagram of a controller of a first embodiment of the present invention.

FIG. 10 is a flow chart showing a method for detecting an appearance of an electronic component according to a first embodiment of the present invention.

Figure 11 is a partial flow chart showing a method of detecting an appearance of an electronic component according to a second embodiment of the present invention.

Figure 12 is a partial flow chart showing a method of detecting an appearance of an electronic component according to a third embodiment of the present invention.

Figure 13 is a partial flow chart showing the method for detecting the appearance of an electronic component according to a fourth embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1-5, FIG. 1 is a first perspective view of an electronic component appearance detecting device according to a first embodiment of the present invention, and FIG. 2 is a second perspective view of the electronic component appearance detecting device according to the first embodiment of the present invention. 3 is a third perspective view of an electronic component appearance detecting device according to a first embodiment of the present invention, and FIG. 4 is a fourth perspective view of the electronic component appearance detecting device according to the first embodiment of the present invention. FIG. A plan view of an electronic component appearance detecting device according to a first embodiment of the present invention.

As shown in the figure, the electronic component appearance detecting device 1 (hereinafter referred to as the detecting device 1) of the present embodiment mainly includes a base 100, a conveying mechanism 200, a sensor 210, a plurality of image capturing modules 400, and a control unit. (Controller 600 as shown in Figure 9). The form of the susceptor 100 is not limited in this embodiment.

Please refer to FIG. 6 at the same time, which is a schematic diagram of a conveying mechanism and a feeding mechanism according to a first embodiment of the present invention. The conveying mechanism 200 is disposed on the base 100 and mainly includes a rotating disc 220 and a motor 230.

The motor 230 is disposed on the base 100, and a drive shaft 231 of the motor 230 is preferably in an upright configuration. Preferably, the motor 230 is a direct drive motor (DD motor).

The rotating disk 220 is used to transport a plurality of electronic components (for convenience of explanation, the following will be described by taking one electronic component as an example). Preferably, the rotating disk 220 is used to transport a large number of micro-sized electronic components, and may be a circular transparent disk made of glass, but is not limited thereto. The rotating disk 220 The motor 230 is configured to be horizontally connected and powered. The center of the rotary disk 220 is disposed on an extension line of the drive shaft 231 of the motor 230, whereby the rotary disk 220 can be driven by the motor 230 to rotate horizontally.

Referring to FIG. 1-5 at the same time, the sensor 210 is disposed on the base 100 and disposed on the rotating disk 220. The sensor 210 can sense whether the electronic component conveyed by the rotating disk 22 passes through a sensing area, and triggers a trigger signal when detecting that the electronic component passes through the sensing area. Preferably, the sensor 210 is an occlusion optical sensor and can generate a light beam that passes through the rotating disk 220. The sensor 210 can be disposed adjacent to the end of the lower rail 330 along the direction of rotation of the rotating disk 220. Preferably, the sensor 210 is arranged behind the end of the blanking rail 330.

Thereby, the rotating disk 220 can receive the electronic component dropped by the blanking rail 330 first, rotate the electronic component, and pass the electronic component through the sensor 210. Moreover, when the electronic component passes through the sensing region, the light beam generated by the sensor 210 can be blocked, and the sensor 210 can be triggered by the sensor 210.

The plurality of image capturing modules 400 are respectively disposed at different positions on the susceptor 100 for respectively imaging different viewing angles (such as a viewing angle, a lower viewing angle, a front viewing angle, a rear viewing angle, a left viewing angle, or a right viewing angle) of the electronic component. Capture. The plurality of image capturing modules 400 are disposed around the rotating disk 220, respectively. Preferably, each of the image capturing modules 400 is disposed adjacent to the rotating disk 220 at different angles according to different image capturing angles to respectively capture a component image of different viewing angles of the electronic component. Each of the image capturing modules 400 mainly includes a photosensitive element (not shown) for photoelectrically converting the image of the component and a photographic lens 410 for collecting light. Each of the image capturing modules 400 can include an upright slide rail 430. Each of the upright slide rails 430 is upright and longitudinally parallel to the forward direction of the rotary disk 220. Further, the photographic lens 410 is slidably disposed on each of the upright slide rails 430.

Preferably, the photographic lens 410 is directly disposed toward the rotating disk 220 to directly capture the electronic component, but is not limited thereto. In another embodiment of the present invention, the image capturing module 400 can also perform image capturing via a mirror 420 as needed. For example, the photographic lens 410 is The reflector 420 is disposed toward the mirror 420, and the mirror 420 is disposed corresponding to the rotating disk 220, thereby reflecting light of another viewing angle of the electronic component carried on the rotating disk 220 to the photographic lens 410. Therefore, the image capturing device 400 can indirectly capture images of different viewing angles of the electronic component via the mirror 420 without changing the setting position (eg, the rear viewing angle of the electronic component (ie, by the rotating disk 220). The image of the viewing angle of the electronic component is viewed from the inside.

It is worth mentioning that the user can define an image capturing position for the plurality of image capturing modules 400 in advance on the rotating disk 220, wherein each of the image capturing positions is located in a shooting range of each of the image capturing modules 400. . When the electronic component passes through any of the image capturing positions, the corresponding image capturing module 400 can capture the image of the component with the best specific viewing angle (such as the component image including the complete electronic component, or the appearance is the clearest Image of the component). Preferably, each of the image capturing positions is determined according to the arrangement position of the image capturing module 400 and the equivalent focal length, the viewing angle range of the electronic component to be obtained by the user, and the ambient illumination, but is not limited thereto.

Continuing to refer to FIG. 1-5 and FIG. 9, FIG. 9 is a structural diagram of a controller according to a first embodiment of the present invention. As shown in FIG. 9 , the controller 600 is electrically connected to the sensor 210 and the plurality of imaging modules 400 , and mainly includes a time acquisition module 601 , a timing module 602 , and a capture control module 603 . And a detection module 604.

The time acquisition module 601 can obtain a plurality of time intervals required to respectively transport the electronic component from a current position (ie, the sensing region) to the plurality of image capturing positions when the trigger signal is received.

Three sets of the image capturing module 400 (the first image capturing module corresponding to the first image capturing position, the second image capturing module corresponding to the second image capturing position, and the third image capturing position corresponding to the third image capturing position respectively) For example, when the module 601 receives the trigger signal, the time acquisition module 601 may first obtain the current position, the first image capturing position, the second image capturing position, the third image capturing position, and the rotation. A rotational speed of the disk 220. And calculating a first time interval (for example, 1 second) according to the current position, the first image capturing position, and the rotating speed, and calculating a second time according to the current position, the second image capturing position, and the rotating speed. Interval (eg, 1.5 seconds), and a third time interval (eg, 3 seconds) is calculated according to the current position, the third image capturing position, and the rotation speed.

Although in the foregoing examples, the complex time interval is obtained by instant calculation, it should not be limited thereto. In another embodiment of the present invention, the detecting device 1 further includes a memory 700 electrically connected to the controller 600. The controller 600 pre-calculates and stores the complex time interval in the memory 700, and reads the complex time interval directly from the memory 700 upon receiving the trigger signal.

The timekeeping module 602 is connected to the time acquisition module 601. After receiving the trigger, each time interval is counted, and a corresponding image capture signal is sent every time one of the plurality of time intervals elapses.

For example, the timing module 602 may send a first image capturing signal corresponding to the first image capturing module when the first time interval (eg, 1 second) elapses; (for example, 1.5 seconds), a second image capturing signal corresponding to the second image capturing module may be emitted; and when the third time interval (for example, 3 seconds) elapses, the corresponding third drawing may be issued. A third image capture signal like the module.

The capture control module 603 is coupled to the chronograph module 602 for driving the plurality of image capture modules 400 to capture the plurality of component images of different viewing angles of the electronic component according to the received plurality of image capture signals.

For example, when the first image capturing signal is received, the capturing control module 603 can drive the first image capturing module to perform image capturing to capture the first viewing angle of the electronic component (such as the viewing angle The component image of the component; when receiving the second image capturing signal, driving the second image capturing module to perform image capturing to capture the component image of the second viewing angle of the electronic component (such as the following viewing angle) And receiving the third image capturing module to drive the third image capturing module to perform image capturing to capture the component image of the third viewing angle (such as the front viewing angle) of the electronic component.

The detection module 604 is connected to the capture control module 603 for performing a detection process on the electronic component according to the captured image of the plurality of components, and generating a one for indicating whether the appearance of the electronic component is flawed. Test results (one of the three results, including sputum, no sputum, or retesting, or one of the four types of 第一, second 瑕疵, 瑕疵 or retest).

Preferably, the detecting device 1 can further include an output device (not shown) electrically connected to the controller 600, such as a display, a speaker or a printer. The detection module 604 can output the detection result via the output device (if the detection result is displayed on the display in an image manner, the detection result is outputted by the speaker in a voice manner or the detection result is in a graphic manner. The list is listed).

Preferably, the memory 700 can further store a plurality of innocent component images in advance. The flaw detection processing is an image processing (such as grayscale/halftone processing, feature pixel analysis processing, frequency analysis processing, difference analysis processing, other image processing, or any combination thereof). Specifically, the flaw detection process compares the plurality of flawless component images with the captured plurality of component images one by one to determine whether the appearance of each view of the electronic component is flawed.

By calculating the transit time of the electronic component and actively triggering the image capture, the invention can ensure that the electronic component completely falls within the image capturing range during image capturing, and can obtain a better detection image, thereby improving the accuracy of the detection result. Moreover, since the present invention actively triggers image capture through timing, instead of passively triggering image capture via the sensor, the sensing time of the sensor and the controller can be effectively judged and driven to take the image capturing module. A better component image can be obtained by taking an image delay caused by a time difference between times.

Referring to FIG. 9 , in another embodiment of the present invention, the transport mechanism 200 further includes an angle encoder 232 electrically connected to the motor 230 and the controller 600 . The angle encoder 232 has a circular angle coordinate built therein, and can obtain an angular position (such as an angle value) of the rotating disk 220 (or the motor 230). The controller 600 further includes a position detection module 605 connected to the time acquisition module 601. Position detection The module 605 obtains the current angle value of the motor 230 via the angle encoder 232, and obtains a plurality of angle values corresponding to the plurality of image capturing modules 400. Moreover, the time acquisition module 601 sets the current angle value of the motor as the current position, and respectively determines the complex angle values corresponding to the plurality of image capturing modules 400 as the complex image capturing position. Preferably, the image capturing position of each of the image capturing modules 400 is pre-stored in the memory 700 according to the angular coordinates of the angle encoder 232. Further, the rotational speed of the rotating disk 220 can also be stored in the memory 700 in advance.

Specifically, when the electronic component passes the sensing area, the sensor 210 triggers the trigger signal. When the position detecting module 605 receives the trigger signal, the motor 230 is obtained from the angle encoder 232. The angle value at which it is located, and thereby defining the angle value (ie, the current position) as the origin of a line of the electronic component. Then, the time acquisition module 601 can accurately estimate the time point at which the electronic component reaches each of the image capturing positions according to the origin, the rotation speed, and the complex angle value of the complex image capturing module 400, so as to facilitate the When the time point arrives, the corresponding image capturing module 400 is driven to capture images.

For example, when the position detection module 605 receives the trigger signal, the angle value (in the case of 10 degrees) at which the motor 230 is located can be obtained and used as the current position, and the first image capturing position is obtained. 20 degrees is taken as an example), the second image capturing position (for example, 30 degrees) and the third image capturing position (for example, 40 degrees). Then, the time acquisition module 601 can calculate, according to the current position, the rotation speed (for example, 5 degrees/second) and the complex angle value, that the electronic component reaches the first image capturing position for 2 seconds, and reaches the first The second image taking position takes 4 seconds, and it takes 6 seconds to reach the third image capturing position. Moreover, the time acquisition module 601 can send the first image capture signal after 2 seconds, issue a second image capture signal after 4 seconds, and issue a third image capture signal after 6 seconds.

The invention can precisely position the rotating direction of the rotating disk by the angle encoder, and only needs a single sensor to locate the origin of the path of the electronic component, so that the electronic component can be accurately inferred to each image capturing position and other mechanisms. The precise time. Since the positioning is fast and accurate, the present invention can take images at a faster speed, and the image quality is better, and the accuracy of the detection can be ensured.

Please refer to Figure 1-6. In another embodiment of the invention, the detecting device 1 further includes a feeding mechanism 300 disposed on the base 100. The feeding mechanism 300 mainly includes a vibration plate 310 and a storage barrel 320.

The storage bin 320 is configured to receive the electronic component to be detected. Specifically, the storage bin 320 sends the electronic component in the storage bin 320 via a supply channel 321 . The supply channel 321 is disposed in the vibration disk 310 to put the electronic component into the vibration disk 310.

The vibrating plate 310 is used to arrange the electronic components via vibration. Specifically, an entire column of tracks 311 is formed in the vibrating plate 310. The entire column of tracks 311 extends in a single ring shape. When a plurality of the electronic components are put into the vibrating plate 310, they will fall into the entire column of tracks 311, and will be arranged in a row in the entire column of tracks 311 due to the vibration of the vibrating plate 310. Further, the entire column of tracks 311 extends out of the blank track 330 to which it is connected, and the electronic components that complete the column are to be fed into the blank track 330. Preferably, the end of the blanking rail 330 extends above the rotating disk 220 and is adjacent to the sensor 210. Further, the blank rail 330 is disposed along a tangential direction of the rotation direction of the rotary disk 220. When the rotating disk 220 rotates, the electronic components are dropped one by one from the end of the blanking rail 330 onto the rotating disk 220, so that the electronic component is rotated along the circular ring as the rotating disk 220 rotates. Path transport.

Preferably, the vibrating plate 310 and the storage bin 320 are all disposed on the base 100, but are not limited thereto. In another embodiment of the present invention, the storage tub 320 is attached to the vibrating tray 310, and the feeding lane 321 is disposed toward the vibrating disc 310.

The invention can effectively control the feeding speed of the electronic component by controlling the discharging speed of the feeding channel. Moreover, the present invention allows the entire track of the electronic component in the vibrating plate to pass through only a single-turn path, thereby effectively shortening the time during which the electronic component is vibrated, thereby preventing the electronic component from being damaged by vibration.

In another embodiment of the present invention, a buffer (not shown) is disposed between the vibrating plate 310 and the base 100. The buffer can reduce the shaking of the base 100 when the vibration disk 310 vibrates to avoid the image capturing accuracy caused by the shaking of the electronic component on the rotating disk 220.

In another embodiment of the present invention, the feeding mechanism 300 further includes a destaticizing fan (not shown). The wind direction of the destaticizing fan is disposed toward the vibrating disk 310, and the electronic component in the vibrating disk 310 is subjected to a destaticizing process to remove the charge of the electronic component. Specifically, the electronic component is mostly an epoxy resin (Eploxy) package, and thus is easily negatively charged, and the destaticizing fan can remove the negative charge carried by the electronic component in the vibration disk 310.

In another embodiment of the invention, the transport mechanism 200 further includes an electrostatic brush 240. The electrostatic brush 240 is disposed on the base 100 and contacts the rotating disk 220. Thereby, when the rotary disk 220 rotates, it can rub against the electrostatic brush 240 to generate a charge (such as a positive charge) on the rotary disk 220 opposite to that of the electronic component.

Specifically, when the uncharged electronic component (ie, the electronic component that has undergone the destatic processing) is transported to the end of the blanking rail 330, it may be slightly rubbed by friction with the blanking rail 330. A charge (such as a negative charge). When the electronic component is dropped from the end of the blank rail 330 onto the rotating disk 220, the electronic component with a charge (such as a negative charge) is adsorbed and fixed to an electrically opposite charge (such as a positive charge). The rotating disk 220 is such that the electronic component is less likely to change the position on the rotating disk 220 due to the vibration of the vibrating disk 310 above or the rotation of the rotating disk 220.

Continuing to refer to FIGS. 1-5 and 7-8, FIG. 7 is a first perspective view of a dispensing mechanism according to a first embodiment of the present invention, and FIG. 8 is a second perspective view of the dispensing mechanism of the first embodiment of the present invention. schematic diagram. As shown, the detection device 1 can further include a dispensing mechanism 500.

The dispensing mechanism 500 includes a plurality of collecting boxes 510 disposed on the base 100 and a plurality of blowing nozzles 520 corresponding to the respective collecting boxes 510. Each of the mouthpieces 520 is disposed toward the corresponding collection box 510. In the present invention, the dispensing mechanism 500 can distinguish between plural categories, such as flaws, flaws, retests, etc., and each of the categories is provided with one of the mouthpieces 520 and one of the collection boxes 510. The rotating disk 220 is interposed between the plurality of blowing nozzles 520 and the corresponding plurality of collecting boxes 510. Each of the blowing nozzles 520 is connected to a positive pressure air source, and each of the blowing nozzles 520 is respectively provided with a solenoid valve 521 electrically connected to the controller 600.

Further, the controller 600 further includes a classification module 606 connected to the detection module 604. When the detecting module 606 detects that the electronic component is transported to the dispensing mechanism 500, the corresponding electromagnetic valve 521 can be controlled according to the detection result, so that the corresponding blowing nozzle 520 is blown, and the electronic component is driven. It is blown into the corresponding collection box 510.

Preferably, a blowing position of each of the blowing nozzles 520 (such as an angle value corresponding to each of the blowing nozzles 520 obtained through the angle encoder 232) may be pre-stored in the memory 700. The classification module 606 can further calculate a mouthpiece time interval according to the current position of the electronic component, the rotation speed of the rotating disk 220, and the blowing position, in addition to determining the blowing nozzle 520 to be driven according to the detection result. . And actively and immediately driving the blowing nozzle 520 to blow when timing the mouthpiece time interval (the manner of actively driving the mouthpiece 520 here is similar to the manner of actively driving the image capturing module 400, No longer).

By calculating the conveying time of the electronic component and actively driving the blowing nozzle to blow the air, the electronic component can be accurately placed in the corresponding collecting box, and the classification error can be effectively avoided. Moreover, since the present invention actively drives the mouthpiece blowing through the timing, instead of passively driving the mouthpiece blowing through the sensor, the sensing time of the sensor and the controller can be effectively judged and driven by the controller. The blow delay caused by the time difference between the times allows the electronic components to fall more accurately into the corresponding collection box.

Preferably, each of the collection boxes 510 is provided with a movable buffer baffle 511. Each of the blowing nozzles 520 is disposed toward the corresponding movable buffer baffle 511 in the corresponding collecting box 510. When the mouthpiece 520 blows the electronic component on the rotating disk 220 into the corresponding collecting box 510, the electronic component first hits the movable buffering baffle 511 and decelerates, and then falls into the bottom of the collecting box 510. The movable buffer baffle 511 can be, but not limited to, a soft board or a hard board pivoted within the collection box 510.

By arranging the active buffer baffle in the collecting box, the invention can effectively prevent the electronic component from being damaged by the high-speed impact on the inner wall of the collecting box, thereby improving the yield of the electronic component after the detecting.

Referring to FIG. 8, the detecting device 1 of the present invention further includes an alternative structure for efficiently and quickly performing component replacement or maintenance.

Specifically, each of the mouthpieces 520 is pivotally coupled to the base 100 by a pivot shaft 522, respectively. Each of the pivot shafts 522 and the rotating disk 220 are disposed in parallel with each other. Thereby, each of the blowing nozzles 520 can be directly turned upside down and retracted from the rotating disk 220 to facilitate replacement or maintenance.

In addition, since the size of the electronic component is small, it is easy to wear the rotating disk 220 during conveyance. The damaged rotating disk 220 will be difficult to stably transport the electronic component and may affect the positioning accuracy and must be replaced (i.e., the rotating disk 220 is a consumable).

In order to solve the problem of the replacement of the rotating disk 220, the detecting device 1 of the present invention can be flipped and retracted in the above-mentioned respective blowing nozzles 520. The lens 310 of each of the image capturing modules 400 can also be along the vertical sliding rail 430. Up (flip) back. After the plurality of mouthpieces 520 and the plurality of image capturing modules 400 are retracted, the detecting device 1 of the present invention can effectively vacate a maintenance space for conveniently replacing the rotating disk 220. Moreover, during the aforementioned retracting process, the displacement of the rotating disk 220 (or the replaced rotating disk 220) in the rotational direction is not caused. Therefore, after the rotating disk 220 is replaced, the plurality of image capturing modules 400 and the plurality of blowing nozzles 520 can be directly turned down (flip), and the positioning direction of the rotating disk 220 is not required to be re-corrected. It can effectively reduce maintenance and time.

It is worth mentioning that the time acquisition module 601, the timing module 602, the capture control module 603, the detection module 604, the position detection module 605 and the classification module 606 can be via hardware. Module mode implementation (such as electronic circuit or integrated circuit of programmed digital circuit) can also be implemented via software module (such as firmware, program or application programming interface (API). )), but not limited to this. When the aforementioned modules are implemented via a software module, the connection between the above modules refers to a link between programs.

When the time acquisition module 601, the timing module 602, the capture control module 603, the detection module 604, the position detection module 605, and the classification module 606 are implemented via a software module, The memory 700 can store a computer program 701, which is recorded for implementing the foregoing modes. The set of code or machine code. After the controller 600 executes the code or mechanical code of the computer program 701, the functions of the modules 601-606 can be implemented.

Continuing to refer to FIG. 10, it is a flowchart of a method for detecting an appearance of an electronic component according to a first embodiment of the present invention. The electronic component appearance detecting method (hereinafter referred to as the detecting method) of each embodiment of the present invention is mainly applied to the detecting device 1 shown in FIGS. 1-9.

Step S100: The sensor 210 detects whether the electronic component conveyed by the transport mechanism 200 passes through the sensing area of the sensor 210. The transport mechanism 200 preferably transports the electronic component via the rotating disk 220, but the electronic component can also be transported via a transport belt, and the components of the detecting device 1 are disposed around the conveyor belt and are not limited.

Preferably, the sensor 210 is an occlusion optical sensor and can detect whether the electronic component passes through the sensing area according to whether the generated light beam is blocked. If it is detected that the electronic component passes, the step S102 is performed. Otherwise, the step S100 is repeatedly executed to continuously detect.

Step S102: The sensor 210 sends the trigger signal to the controller 600.

Step S104: When receiving the trigger signal, the controller 600 respectively obtains the complex time interval required to transport the electronic component to the complex image capturing position corresponding to the plurality of image capturing modules 400.

Preferably, the controller 600 can further have a feed detection function. Specifically, when the controller 600 determines that the receiving time of the plurality of trigger signals is too dense (eg, only 0.1 second interval), it may directly determine that a plurality of the electronic components currently passing through have a connection (ie, multiple The spacing of the electronic components is too small).

Then, the plurality of electronic components that are currently passing are positioned, but the plurality of time intervals are not counted, and the detection results of the plurality of electronic components are directly set to “re-retest”, and the dispensing mechanism is configured 500 sorts a plurality of the electronic components into the corresponding collection box 510. Thereby, it is possible to effectively prevent a plurality of the electronic components from being misjudged as defective due to the splicing, thereby effectively improving the detection accuracy.

Moreover, when a plurality of the electronic components connected to each other pass the image capturing position of each of the image capturing modules 400, the controller 600 may not drive each of the image capturing modules 400 to perform image capturing (in other words, the control) The device may not perform steps S106-S112 and directly terminate the detection method) to avoid capturing the useless image of the component.

Step S106: The controller 600 counts whether any of the plural time intervals has elapsed. If any of the complex time intervals has elapsed, step S108 is performed. Otherwise, step S106 is repeatedly executed to continue timing.

Step S108: The controller 600 drives the corresponding image capturing module 400 to capture the component image of the specific viewing angle of the electronic component, wherein the image capturing module 400 that is driven corresponds to the determined in step S106. The time interval passed.

Step S110: The controller 600 determines whether the plural time intervals have passed. In other words, the controller 600 determines whether the plurality of image capturing modules 400 (respectively for a plurality of time intervals and respectively for capturing different angles of view of the electronic component) have completed image capturing operations on the electronic component. . If it is determined that the complex time interval has passed, step S112 is performed. Otherwise, the step S106 is repeatedly performed to continue counting until the plurality of image capturing modules 400 complete the image capturing operation of the electronic component.

Step S112: The controller 600 performs the flaw detection processing on the electronic component according to the acquired image of the plurality of components, and generates the detection result indicating whether the appearance of the electronic component is flawed.

FIG. 11 is a partial flowchart of a method for detecting an appearance of an electronic component according to a second embodiment of the present invention. The difference between the detection method of this embodiment and the first embodiment is that the detection method of the embodiment further includes the following steps before the step S100:

Step S200: The feeding mechanism 300 transports the electronic component from the storage tub 320 to the vibration disk 310.

Step S202: The feeding mechanism 300 performs the destatic processing on the electronic component. Preferably, the feeding mechanism 300 performs the destaticizing treatment via the destaticizing fan.

Step S204: The feeding mechanism 300 vibrates the vibration disk 310 to arrange the electronic components, and delivers the arranged electronic components to the blanking rail 330 extended by the vibration disk 310.

Step S206: The feeding mechanism 300 charges the electronic component. Preferably, the feeding mechanism 300 causes the electronic component to be negatively charged by rubbing the electronic component against the blanking track 330.

Step S208: The transport mechanism 200 causes the rotating disk to carry an electric charge opposite to that of the electronic component. Preferably, the transport mechanism 200 causes the rotating disc 220 to rub against the electrostatic brush 240 such that the rotating disc carries a charge that is electrically opposite to that of the electronic component.

Step S210: The feeding mechanism 300 transports the electronic component to the rotating disk 220 via the blanking rail 330. Since the electronic component and the rotating disk 220 have electric charges opposite to each other at this time, the electronic component is adsorbed and fixed to the rotating disk 220. This step S100 is then performed.

Continuing to refer to FIG. 12, a partial flow chart of a method for detecting an appearance of an electronic component according to a third embodiment of the present invention is shown. In the present embodiment, the transport mechanism 200 transports the electronic component via the rotating disk 220. The difference between the detection method of this embodiment and the first embodiment is that the step S104 of the detection method of the embodiment further includes the following steps:

Step S1040: The controller 600 obtains the current position of the electronic component on the rotating disk 220. Preferably, the controller 600 obtains the current angle value of the motor 230 that drives the rotating disk 220 to rotate horizontally via the angle encoder 232 as the current position.

Step S1042: The controller 600 obtains the complex image capturing position. Preferably, the controller 600 uses the complex angle value corresponding to the plurality of image capturing modules as the complex image capturing position.

Step S1044: The controller 600 acquires the rotational speed of the rotating disk 220.

Step S1046: The controller 600 calculates the complex time interval according to the obtained current position, the rotation speed, and the complex image capturing position. This step S106 is then performed.

FIG. 13 is a partial flow chart of a method for detecting an appearance of an electronic component according to a fourth embodiment of the present invention. The detection method of this embodiment differs from the first embodiment in that the detection method of this embodiment further includes the following steps after the step S112:

Step S300: The controller 600 outputs the detection result. For example, the detection result is displayed on the display in an image manner or uploaded to a remote server via a network.

Step S302: The controller 600 detects whether the electronic component reaches the dispensing mechanism 500. Preferably, the controller 600 selects the corresponding air blowing position from the plurality of air blowing positions according to the detection result, and actively (such as passing the angle encoder 232 and timing the mouth time interval) or passive (If triggered by another sensor disposed beside the dispensing mechanism) to detect whether the electronic component reaches the blowing position. If the controller 600 detects that the electronic component reaches the dispensing mechanism 500, then step S304 is performed. Otherwise, the step S302 is repeatedly executed to continuously detect.

Step S304: The controller 600 controls one of the corresponding plurality of blowing nozzles 520 to blow according to the detection result to blow the electronic component into the corresponding collection box 510.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent changes to the scope of the present invention are included in the scope of the present invention. Bright.

S100-S112‧‧‧Test steps

Claims (20)

An electronic component appearance detecting device comprises: a base; a conveying mechanism comprising a motor disposed on the base and a rotating disk for conveying the plurality of electronic components; and a sensor for detecting each of the electronic components a trigger signal is sent through; a plurality of image capturing modules are respectively disposed in a plurality of image capturing positions adjacent to the rotating disk, and image capturing is performed on each of the electronic components; and a controller is electrically connected to the sensor And the plurality of image capturing modules, comprising: a time acquisition module, when receiving the trigger signal, obtaining a plurality of time intervals required for each of the electronic components that are transmitted through the sensor to each of the image capturing positions; The timing module respectively emits a corresponding image capturing signal when the time interval passes; a capturing control module drives the plurality of image capturing modules to capture the plurality of component images according to the plurality of image capturing signals And a detecting module, performing a detection process according to the image of the plurality of components of the electronic component, and generating a detection result, wherein the detecting module determines the connection of the plurality of trigger signals When the time interval is not greater than a threshold value, it sets the current of the detection result by each of the electronic component is to be re-measured. The electronic component appearance detecting device of claim 1, further comprising a feeding mechanism, comprising: a vibrating plate disposed on the base, the plurality of electronic components being arranged by vibration, the vibrating disk extending with an end extending to the a blank track above the rotating disk and adjacent to the sensor for transporting the plurality of electronic components to the rotating disk and causing the plurality of electronic components to be charged via friction; a storage bin containing the plurality of electronic components to be inspected and having a supply path disposed in the vibration disk for transporting the plurality of electronic components to the vibration disk. The electronic component appearance detecting device of claim 2, wherein the feeding mechanism further comprises a destaticizing fan, wherein an air blowing direction of the destaticizing fan is disposed toward the vibrating disk to perform a destaticizing process on the plurality of electronic components. . The electronic component appearance detecting device according to claim 3, further comprising an electrostatic brush disposed on the base and contacting the rotating disk such that the rotating disk has a charge opposite to that of the plurality of electronic components Charge. The electronic component appearance detecting device according to claim 2, wherein the vibrating disk is formed with an entire track, the entire track extends in a single ring shape and is connected to the blanking track, and a gap is disposed between the vibration disk and the base buffer. The electronic component appearance detecting device according to claim 1, wherein the sensor is an occlusion optical sensor that emits the trigger signal when the generated light beam is blocked. The electronic component appearance detecting device of claim 1, wherein the rotating disk is horizontally disposed, and each of the image capturing modules is disposed on the base and disposed around the rotating disk; The plurality of time intervals are calculated by a current position of the electronic component on the rotating disk, the complex image capturing position, and a rotational speed of the rotating disk. The electronic component appearance detecting device of claim 7, wherein the conveying mechanism further comprises an angle encoder electrically connected to the motor and the controller, the controller further comprising a position detecting module, the position detecting The module obtains the current angle value of the motor through the angle encoder, and obtains a plurality of angle values corresponding to the plurality of image capturing modules, wherein the time acquisition module makes the current angle value of the motor For the current position, the complex angle value corresponding to the plurality of image capturing modules is respectively taken as the complex image capturing position. The electronic component appearance detecting device according to claim 1, further comprising a dispensing mechanism, comprising: a plurality of collecting boxes disposed on the base; and a plurality of blowing nozzles respectively disposed toward the corresponding plurality of aggregate boxes And respectively, a solenoid valve electrically connected to the controller is disposed, wherein the rotating disk is interposed between the plurality of blowing nozzles and the plurality of collecting boxes. The electronic component appearance detecting device of claim 9, wherein the controller further comprises a sorting module, and when detecting that each of the electronic components reaches the dispensing mechanism, controlling the corresponding one according to the detection result of each of the electronic components The solenoid valve blows each of the electronic components into the corresponding collecting box so that the corresponding blowing nozzle blows. The electronic component appearance detecting device according to claim 9, wherein each of the collecting boxes is respectively provided with a movable buffering baffle, and each of the blowing nozzles respectively faces the corresponding movable buffering baffle in the collecting box. Each of the blowing nozzles is pivotally connected to the base by a pivot shaft, and each of the pivot shafts and the rotating disc are disposed parallel to each other. An electronic component appearance detecting method is applied to an electronic component appearance detecting device including a conveying mechanism, a sensor, a plurality of image capturing modules and a controller, comprising the following steps: a) detecting the sensor Each of the electronic components transported by the transport mechanism emits a trigger signal when passing; b) the controller obtains the plurality of electronic components that are transported through the sensor to the plurality of image capture modules when receiving the trigger signal The plurality of time intervals required for the image capturing positions are respectively; c) determining that a plurality of the receiving time intervals of the triggering signals are less than a threshold value, and setting a detection result of each of the currently passed electronic components to be re-tested; And d) respectively driving the corresponding image capturing modules to perform image capturing on the electronic components and generating a plurality of component images; and e) performing the image of the plurality of components according to the plurality of electronic components The detection process is performed, and the detection result indicating whether or not the appearance of each of the electronic components is defective is generated. The method for detecting an appearance of an electronic component according to claim 12, wherein the step a further comprises the steps of: a1) transporting the plurality of electronic components from a storage bucket to a vibration disk; a2) via a destaticizing fan. The plurality of electronic components perform a destaticizing process; and a3) vibrating the vibrating disk to align the plurality of electronic components. The electronic component appearance detecting method of claim 13, wherein the conveying mechanism transports the plurality of electronic components via a rotating disk; and after the step a3, the method further comprises the steps of: a4) charging the plurality of electronic components; a5 Causing the rotating disk with a charge opposite to that of the plurality of electronic components; and a6) delivering the plurality of electronic components to the rotating disk. The method of detecting an appearance of an electronic component according to claim 14, wherein the step a4 causes the plurality of electronic components to rub the trailing track extended by the vibrating plate to cause the plurality of electronic components to have a negative charge; the step a5 is The rotating disk rubs an electrostatic brush to impart a positive charge to the rotating disk. The electronic component appearance detecting method of claim 12, wherein the sensor is an occlusion optical sensor; in the step a, the sensor is detected according to whether the generated light beam is blocked. Whether each of the electronic components passes. The electronic component appearance detecting method according to claim 12, wherein the conveying mechanism conveys the plurality of electronic components via a rotating disk; the step b includes the following steps: b1) obtaining a current of the electronic components on the rotating disk position; B2) obtaining the complex image capturing position and a rotational speed of the rotating disk; and b3) calculating the complex time interval according to the current position, the rotational speed, and the complex image capturing position. The method of detecting an appearance of an electronic component according to claim 17, wherein the step b1 obtains, by using an angle encoder, a current angle value of a motor that drives the horizontal rotation of the rotary disk as the current position; the step b2 is to The complex angle value of the plurality of image capturing modules is taken as the complex image capturing position. The electronic component appearance detecting method of claim 12, further comprising the step f: outputting the detection result. The electronic component appearance detecting method of claim 12, further comprising a step g: controlling a corresponding blowing nozzle to perform blowing according to the detection result of each of the electronic components to blow each of the electronic components into the mouthpiece Corresponding one set of boxes.