TWI576577B - Object detection method and device - Google Patents

Description

Object detecting method and device

The invention relates to a detecting method and device, in particular to an object detecting method and device for performing quality defect detection of electronic component laminations.

According to the general electronic component packaging process, the adhesive is often used. Especially when the heat sink is placed on the substrate, the adhesive is first applied between the heat sink and the substrate, and then the two are pressed and fixed to be common. Process, but the amount of adhesive applied will affect the quality of the press. For example, too much adhesive will cause the glue between the heat sink and the substrate to overlap between the slits of the two laminated sheets, which will cause defective products. Therefore, in the process of pressing the heat sink and the substrate, it is necessary to manually check the overflow condition to determine the defective product at a proper time and check it out.

In the prior art, the inspection of the overflow condition is performed manually. Although it is possible to determine the defective product and detect it, the efficiency cannot be matched with the large capacity, so it can only be sampled and detected, and it is easy to determine the standard of the defective product. Different from person to person, the false positive rate of manual visual inspection is high, and the quality cannot be consistent.

Accordingly, it is an object of the present invention to provide an object detecting method which can be used to automatically detect a laminated object formed by a two-object adhesive.

Another object of the present invention is to provide an object detecting device which can be used for automatically detecting a laminated object formed by a two-object adhesive.

It is still another object of the present invention to provide an apparatus for performing an object detecting method according to the object of the present invention.

The object detecting method according to the object of the present invention comprises: arranging a plurality of objects to be detected in a matrix in a carrier; the object to be detected is a laminated object formed by using two adhesives; and the object to be detected is lifted. And a predetermined height above the loading tray; taking a positioning position of the object to be detected by a positioning detecting device; taking an image of the to-be-detected portion of the object to be detected by an overflow detecting device to perform overflow detection.

Another object detecting method according to the object of the present invention comprises: a step of positioning, wherein a lifting device is located below a hollow space below the object to be detected on a carrier; the object to be detected is formed by the adhesive of two objects. a stacking object; a lifting step, causing the lifting device to rise through the tray hollowing interval with a suction seat, and lift the object to be detected upward to a predetermined height above the carrier; a positioning step to a positioning detecting device The object to be detected is imaged, and the abutment is adjusted to make a correction, so that the object to be detected is located at a predetermined detection position; and an overflow detection step is performed by a glue detection device to be detected on the portion to be detected of the object to be detected. Take the image for the glue detection.

An object detecting device according to another object of the present invention is provided on a machine table, comprising: a rail frame on which a flow path for carrying a carrier on a tray to be detected is formed; the to-be-detected The object is a laminated object formed by the adhesive of the two objects; a visual positioning unit is provided with a positioning detecting device for positioning detection of the object to be detected on the carrier; and a visual detecting unit is provided with a glue detecting device for the carrier The object to be detected is subjected to overflow detection; a substrate transfer unit is provided with a lifting device for carrying out the lifting operation of the object to be detected on the carrier.

An object detecting device according to still another object of the present invention comprises: means for performing the object detecting method as described.

The object detecting method and device of the embodiment of the present invention can detect the positioning of the object to be detected on the carrier by the visual positioning unit, and then perform the glue detection by the visual detecting unit, thereby achieving the vertical surface to be detected. The best image quality, improve the accuracy of detection, and The substrate transfer unit performs Z-axis lifting to the upper position of the carrier and the intermittent rotation operation of the R-axis, and can automatically detect the object to be detected of the laminated object formed by the two objects, especially The object including the substrate and the heat sink has the overflow detection on each side of the whole circumference, so that the detection efficiency is improved and the detection quality is consistent; and by replacing the suction seat of the lifting device, not only can the size of different objects to be detected be adapted, but also One or several objects to be tested are simultaneously raised and lowered for detection to improve the detection efficiency; and the visual positioning unit performs the position detection of the object to be detected from the top to the bottom, which can also be used for the detection of the offset of the implant, and the visual detection unit is positive The image of the side of the object to be detected and the full circumference of the four sides can be detected, and the quality of the laminated piece can be detected together, and the visual positioning unit and the visual inspection unit are detected in different axial directions, but the image can be shared. The first light source and the second light source are cost effective to reduce.

A‧‧‧Testables

A1‧‧‧Substrate

A2‧‧‧ heat sink

A3‧‧‧Over the glue

B‧‧‧rail

B1‧‧‧ Carrier

B11‧‧‧ Short-term interval

C‧‧‧ machine table

D‧‧‧Visual Positioning Unit

D1‧‧‧ tripod

D2‧‧‧ first slide

D3‧‧‧First rail seat

D4‧‧‧First slide

D5‧‧‧Second rail

D6‧‧‧Second rail seat

D7‧‧‧Second slide

D8‧‧‧ Positioning detection device

E‧‧‧Visual Inspection Unit

E1‧‧‧ third slide

E2‧‧‧ third rail seat

E3‧‧‧ third slide

E4‧‧‧fourth rail

E5‧‧‧fourth rail seat

E6‧‧‧fourth slide

E7‧‧‧Overflow detection device

E8‧‧‧ first light source

E9‧‧‧second light source

F‧‧‧Substrate transfer unit

F1‧‧‧ fifth slide

F2‧‧‧ fifth rail seat

F3‧‧‧5th slide

F4‧‧‧ sixth slide

F5‧‧‧ sixth rail seat

F6‧‧‧6th slide

F7‧‧‧lifting device

F71‧‧‧lifting seat

F711‧‧‧first fixed seat

F712‧‧‧ seventh slide

F713‧‧‧ seventh slide

F714‧‧‧Moving drive parts

F715‧‧‧Leather belt

F716‧‧‧ screw

F717‧‧‧ sensor

F72‧‧‧ rotating seat

F721‧‧‧Second mount

F722‧‧‧Rotary drive

F723‧‧‧Leather belt

F724‧‧‧ shaft

F725‧‧‧ suction seat

F726‧‧ ‧ nozzle

F727‧‧‧Inductive parts

FIG. 1 is a schematic perspective view of an embodiment of an overflow of a substance to be detected in an embodiment of the present invention.

2 is a perspective view showing the arrangement relationship of each mechanism of the object detecting device in the embodiment of the present invention.

3 is a perspective view of a visual inspection unit in an embodiment of the present invention.

4 is a perspective view of a substrate transfer unit in an embodiment of the present invention.

FIG. 5 is a perspective exploded view of the lifting device in the embodiment of the present invention.

Fig. 6 is a schematic view showing the lifting device located below the object to be detected in the rail frame of the embodiment of the invention.

Fig. 7 is a perspective view showing the lifting device of the embodiment of the present invention in which the lifting device lifts the object to be detected to the top of the carrier.

Figure 8 is a schematic diagram of the steps in place in the embodiment of the present invention.

Figure 9 is a schematic view showing the steps of lifting in the embodiment of the present invention.

FIG. 10 is a schematic diagram of a positioning step in an embodiment of the present invention.

FIG. 11 is a schematic diagram of a step of detecting alignment in an embodiment of the present invention.

Figure 12 is a schematic view showing the steps of detecting the overflow glue in the embodiment of the present invention.

Figure 13 is a schematic view showing the steps of rotation in the embodiment of the present invention.

Referring to FIG. 1 , an object to be detected A in the embodiment of the present invention is an object including a substrate A1 and a heat sink A2, which has a rectangular body and has four straight sides, each side being separated by the substrate A1 and the heat dissipation. The sheet A2 is formed by adhesive adhesion between the upper and lower two lamination slits, and the overflowing portion A3 formed between the two lamination slits on the circumference of the whole object to be detected A by the lamination of the two laminations will form a crucible. The entire object to be detected A forms a defective product and should be detected.

Referring to FIG. 2 and FIG. 3, an embodiment of an object detecting method and apparatus according to an embodiment of the present invention may be described as shown in the figure, including: a rail frame B disposed on a machine table C, and a device is formed thereon. The loading plate B1 can be used for the Y-axis conveying flow path; a visual positioning unit D is disposed on the machine table C, and includes a side stand D1 standing on the two sides and a Y-axis on the side a first rail D3 of the first slide rail D2, and a second rail mount D6 having a X-axis second slide rail D5 disposed on a first slide D4 of the first slide rail D2, and a second slide rail The D5 is provided with a second sliding seat D7, and is provided with a positioning detecting device D8, which can be a CCD lens for performing Z-axis positioning detection on the object on the carrier B1 from top to bottom; The visual detecting unit E is disposed on the machine table C and located below the first rail D3 of the visual positioning unit D on the side of the rail B for performing the Y-axis of the object on the carrier B1 by one side. A substrate transfer unit F is disposed on the machine table C and located below the loading frame B1 of the rail B for performing the carrier B1 from bottom to top. Z-axis of the conveying member for rotational operation of the axial and R l.

Referring to FIG. 2 and FIG. 3, the visual detecting unit E includes: a third rail seat E2 having a Y-axis third slide rail E1 disposed thereon, and a third slide rail E3 disposed on the third rail E1; The slide seat E3 is provided with a fourth rail seat E5 on which the X-axis fourth slide rail E4 is disposed, and the fourth slide rail E4 is provided with a fourth slide seat E6; the fourth slide seat E6 is provided with an overflow glue detection. The device E7, which can be a CCD lens, is provided with a first light source E8 and three second light sources E9 surrounded by three sides of the rectangle before the detection of the glue detecting device E7, the first light source E8 and the The three second light sources E9 are arranged in a rectangular shape and each of the four sides of the rectangle and provide a one-side light source, and the rectangular plane is arranged to be approximately parallel to the plane of the tray B on the tray B1, and the rectangular frame is surrounded. The first light source E8 and the second light source E9 respectively correspond to the outer side above the object to be detected A; the first light source E8 and the second light source E9 and the overflow are located just above the detected object to be detected A. The glue detecting device E7 is synchronously linked and can independently open and close the light source, and the light source enclosed by the first light source E8 and the second light source E9 is provided for The position detecting device D8 is used for positioning detection. Therefore, when the positioning detecting device D8 performs the positioning detection, the first light source E8 and the second light source E9 are both turned on, and the first light source E8 is used for detecting the overflow detecting device E7. Therefore, when the overflow detecting device E7 performs the overflow detection, the second light source E9 is in a closed state, only the first light source E8 is in an open state, and the orientation of the first light source E8 and the detection signal axial direction of the overflow detecting device E7 Vertical.

Referring to FIG. 4, the substrate transfer unit F includes: a fifth rail seat F2 having a Y-axis fifth rail F1 disposed thereon, and a fifth slider F3 disposed on the fifth rail F1; The seat F3 is provided with a sixth rail seat F5 on which the X-axis sixth rail F4 is disposed, the sixth rail F4 is provided with a sixth sliding seat F6, and the sixth sliding seat F6 is provided with a lifting device E7. Referring to FIGS. 4 and 5, the lifting device F7 includes a lifting base F71 and a rotating base F72. The lifting base F71 is disposed on the sixth sliding seat F6 by a first fixing seat F711. There is a Z-axis seventh slide rail F712, and the seventh slide rail F712 is provided with a seventh slide seat F713, which is driven by a lifting drive F714 via a belt F715 and driven by a screw F716. Axial up and down displacement; the rotation The rotating seat F72 is disposed on the seventh sliding seat F713 by a second fixing base F721, and is provided with a rotating driving member F722 for rotating a suction seat F725 of the upper end of the shaft F724 via a belt F723. The suction seat F725 is provided. A plurality of nozzles F726 can be connected with a negative pressure. The second fixing base F721 of the rotating base F72 is provided with a sensing member F727, which can be disposed on the upper and lower sides of the first fixing seat F711 of the lifting base F71. The sensor F717 is sensed to establish that the rotating base F72 is displaced and positioned above the lifting base F71.

Referring to FIG. 6, the lifting device F7 can be driven just below the loading tray B1 of the rail B, and the suction seat F725 on the rotating base F72 corresponds to a lower object to be detected A on the loading tray B1. B1 may arrange a plurality of objects to be detected A in a matrix manner, and each of the carriers B1 under the object A to be detected respectively forms a hollow interval B11, and the hollow interval B11 can be extended by the suction seat F725 on the rotating base 72, see The suction seat F725 on the rotating base 72 of FIG. 7 can be rotated under the preset positioning of the object A to be detected and moved on the loading plate B1. Different sizes of the object to be detected A can be exchanged for different specifications. F725.

The object detecting method of the embodiment of the present invention includes: a step of in-position, referring to FIGS. 6 and 8, the lifting device F7 of the substrate transfer unit F is driven just below the carrier B1, and the rotating seat F72 is rotated. The upper suction seat F725 corresponds to the lower portion B11 below the object A to be detected on the carrier B1; for the lifting step, please refer to FIGS. 5, 7, and 9, to lift the base of the lifting device F7 of the substrate transfer unit F. The F71 drives the seventh sliding seat F713 to move the seventh sliding rail F712 in the Z-axis by the lifting driving member F714, so as to vertically move the suction seat F725 on the rotating base F72 to vertically pass through the hollow section B11 of the loading tray B1, and use the suction nozzle. F726 adsorbs the underside of the object to be detected A, and lifts the object to be detected A up to a predetermined height above the carrier B above the carrier B1; a positioning step, please refer to FIG. 10, the positioning detecting device D8 of the visual positioning unit D The CCD lens performs image capturing of the object to be detected A on the carrier B1 from top to bottom, and confirms that it is to be detected. The amount of declination of the object A is placed, and the image capturing result is adjusted by the suction seat F725 on the rotating seat F72 of the lifting device F7 to perform angle correction, so that the object A to be detected and adsorbed by the suction cup F725 is located at a predetermined position. For the detection and positioning step, as shown in FIG. 11, the CCD lens of the overflow detecting device E7 of the visual detecting unit E is focused on the portion to be detected of the object A to be detected; and the step of detecting the overflow glue is shown in FIG. The CCD lens of the overflow detecting device E7 of the visual detecting unit E performs the Y-axis image capturing of the portion to be detected of the object A to be detected by one side to perform the overflow detecting; for a rotating step, refer to FIG. 13. The suction seat F725 on the rotating base 72 is attracted to the object A to be horizontally rotated by ninety degrees, so that the portion to be detected on the other side of the object to be detected A corresponds to the CCD lens of the overflow detecting device E7 of the visual detecting unit E. a full-circumference detection step, looping the detection alignment step, the overflow glue detection step, and the rotation step of the foregoing FIGS. 11-13, until the intermittent detection of the object A intermittently rotates all the sides to complete the overflow glue detection, the suction seat F725 Linking the object to be detected A down, making it to be inspected A drop was placed on a platen B1, excess glue complete detection of the object A to be detected.

The object detecting method and device of the embodiment of the present invention can detect the positioning of the object A to be detected on the carrier B1 via the visual positioning unit D, and then perform the overflow detection by the visual detecting unit E to achieve the vertical surface. The best image quality of the object A to be treated is improved, and the accuracy of the detection is improved, and in the substrate transfer unit F, the object A is subjected to Z-axis lifting to the upper position of the carrier B1 and the intermittent rotation of the R axis. The detection of the object to be detected A of the laminated object formed by the two objects can be automatically completed, in particular, the detection of the overflow of the substrate on both sides of the substrate and the heat sink, so that the detection efficiency is improved and the detection quality is consistent; By replacing the suction seat F725 of the lifting device F7, not only can different size of the object A to be detected, but also one or several objects to be detected A can be simultaneously raised and lowered for detection, thereby improving the detection efficiency; and the visual positioning unit D is adopted. From above The positioning detection of the object A to be tested is performed, and the object can be used for the detection of the offset of the implant, and the visual detection unit E is to take the image of the side of the object A and perform the whole circumference of the four sides. The quality 瑕疵 can be detected together, and the visual positioning unit D and the visual detecting unit E are detected in different axial directions, but the first light source E8 and the second light source E9 can be shared, so that the cost is effectively reduced.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

B‧‧‧rail

B1‧‧‧ Carrier

C‧‧‧ machine table

D‧‧‧Visual Positioning Unit

D1‧‧‧ tripod

D2‧‧‧ first slide

D3‧‧‧First rail seat

D4‧‧‧First slide

D5‧‧‧Second rail

D6‧‧‧Second rail seat

D7‧‧‧Second slide

D8‧‧‧ Positioning detection device

E‧‧‧Visual Inspection Unit

F‧‧‧Substrate transfer unit

Claims (14)

An object detecting method comprises: arranging a plurality of objects to be detected in a matrix in a carrier; the object to be detected is a laminated object formed by two pieces of adhesive; and the object to be detected is lifted above the carrier. a predetermined height; taking a position of the object to be detected by a positioning detecting device; taking an image of the object to be detected of the object to be detected by an overflow detecting device to perform the glue detecting. An object detecting method includes: a step of positioning, wherein a lifting device is located below a hollow space below a to-be-detected object on a carrier; the object to be detected is a laminated object formed by two pieces of adhesive; a step of lifting the lifting device through a suction pocket and moving the object to be detected upward to a predetermined height above the carrier; and a positioning step of the object to be detected by a positioning detecting device Taking the image and adjusting the orientation of the suction seat to make correction, so that the object to be detected is located at a predetermined detection position; and an overflow detection step is to take an image of the object to be detected of the object to be detected by an overflow detection device to perform overflow Glue detection. The object detecting method according to claim 1 or 2, wherein the overflow detecting device rotates the object to be detected during the image capturing process of the object to be detected, so that the other side of the object to be detected is The part to be detected is taken by the overflow detection device to perform the glue detection. The object detecting method according to claim 1 or 2, wherein the object to be detected is an object including a substrate and a heat sink. An object detecting device is disposed on a table top, and comprises: a rail frame on which a flow path for carrying a carrier on which one of the objects to be detected can be transported is formed; the object to be detected is bonded by two objects. a laminated object formed by glue; a visual positioning unit is provided with a positioning detecting device for detecting the position of the object to be detected on the carrier; a visual detecting unit is provided with a glue detecting device for detecting the overflow of the object to be detected on the carrier; and a substrate transfer unit A lifting device is provided to carry out the lifting operation of the object to be detected on the carrier. The object detecting device of claim 5, wherein the visual positioning unit comprises: a first rail seat on each of which is supported by the tripod and has a Y-axis first slide rail disposed thereon, and a second rail seat having a X-axis second slide rail on a first slide of the first slide rail, and a second slide rail disposed on the second slide rail, the positioning detecting device is disposed on the first slide rail A CCD lens performs Z-axis positioning detection on the object on the carrier from top to bottom. The object detecting device of claim 5, wherein the visual detecting unit comprises: a third rail seat having a third sliding rail in the Y direction; and a third sliding seat on the third sliding rail The third sliding seat is provided with a fourth rail seat on which the X-axis fourth sliding rail is disposed, and the fourth sliding rail is provided with a fourth sliding seat; the fourth sliding seat is provided with the overflow detecting device, Can be a CCD lens. The object detecting device of claim 5, wherein the visual detecting unit comprises a first light source before the detecting of the overflow detecting device, and three second light sources surrounding the three sides of the rectangle. The first light source and the three second light sources together define four sides which are rectangular and each are respectively rectangular. The object detecting device of claim 8, wherein the first light source and the second light source are synchronously linked with the overflow detecting device and can independently open and close the light source. The object detecting device of claim 8, wherein the light source enclosed by the first light source and the second light source is used when the positioning detecting device performs positioning detection, and when the positioning detecting device performs positioning detection, The first light source and the second light source are both turned on; The first light source is used for detecting the overflow glue detecting device, and when the overflow glue detecting device performs the glue overflow detection, the second light source is turned off, and only the first light source is turned on. The object detecting device of claim 8, wherein the orientation of the first light source is perpendicular to the axial direction of the detection signal of the overflow detecting device. The object detecting device of claim 5, wherein the substrate transfer unit comprises: a fifth rail seat having a Y-axis fifth slide rail thereon, and a fifth slide rail on the fifth slide rail The fifth sliding seat is provided with a sixth rail seat on which the X-axis sixth sliding rail is disposed, and the sixth sliding rail is provided with a sixth sliding seat, and the lifting device is disposed on the sixth sliding seat. The object detecting device of claim 5, wherein the lifting device comprises a lifting seat and a rotating seat; wherein the lifting seat is provided with a seventh sliding driveable in the Z-axis. The rotating seat is disposed on the seventh sliding seat, and is provided with a suction seat for lifting the object to be detected and being driven to rotate by a shaft. An object detecting device comprising: means for performing the object detecting method according to any one of claims 1 to 4.