WO2005100215A1 - チップ部品搬送方法及び装置、並びに外観検査方法及び装置 - Google Patents
チップ部品搬送方法及び装置、並びに外観検査方法及び装置 Download PDFInfo
- Publication number
- WO2005100215A1 WO2005100215A1 PCT/JP2004/013284 JP2004013284W WO2005100215A1 WO 2005100215 A1 WO2005100215 A1 WO 2005100215A1 JP 2004013284 W JP2004013284 W JP 2004013284W WO 2005100215 A1 WO2005100215 A1 WO 2005100215A1
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- WIPO (PCT)
- Prior art keywords
- chip component
- rotating disk
- chip
- imaging
- imaging means
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/32—Individual load-carriers
- B65G17/323—Grippers, e.g. suction or magnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/911—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers with air blasts producing partial vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
- G01R31/013—Testing passive components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/041—Camera
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8803—Visual inspection
Definitions
- Chip component transport method and apparatus and appearance inspection method and apparatus
- the present invention covers four aspects of chip components such as chip capacitors and chip inductors.
- the present invention relates to a method and an apparatus for transporting chip components in a transport mode suitable for imaging (upper surface, lower surface, both side surfaces other than both end surfaces), and a visual inspection method and apparatus using the transport method and device.
- a work storage groove is formed in the rotating plate, and the work (conveyed product) is supplied to the work storage groove and separated and transferred by intermittent operation (commercially available inspection machine).
- Patent Document 1 JP-A-2000-266521
- Patent Document 2 Japanese Patent Publication No. 6-87072
- Patent Document 3 JP 2000-337843
- the rotating plate is made of a transparent member (eg, hard glass), and the top and both sides of the work are inspected with three CCD cameras arranged on the orbiting path, and the lower surface is recognized through the transparent rotating plate.
- Patent Literature 5 Japanese Patent Application Laid-Open No. 2000-01- 3 1 2 4 1
- FIGS. 6 and 7 show an example of a conventional chip component transfer device, and show a configuration in which a chip component 1 as a work is delivered by two rotating disks.
- This device includes a parts feeder 50, a lower rotating disk 51 and an upper rotating disk 52, and a plurality of suction holes 53 are formed on the lower surface of the upper rotating disk 52 as shown in FIG.
- the workpiece conveyed on the continuously rotating lower rotating disk 51 is sucked by the continuously rotating upper rotating disk 52 and the suction holes 53 on the second side, and the chip component 1 is delivered.
- the lower rotating disk 51 captures the upper surface and one side surface of the chip component being transported by the imaging means, and the upper rotating disk 52 Then, the lower surface and the other side surface of the chip component being transported are imaged by the imaging means.
- This enables four-sided inspection of chip components.
- the work posture is not stable due to the effect of acceleration / deceleration in the transfer by intermittent drive. There are also problems such as not being able to gain processing capacity.
- the belt conveyance also has a problem that the work posture varies due to the vibration of the belt itself during the conveyance.
- the problems of the conventional inspection method are as follows.
- the transfer method itself is simple because there is no transfer of the work, but the transparent member is easily stained and scratched. There is a problem in accuracy, and there is a problem in stability detection (a good product is originally regarded as a defective product).
- Patent Document 5 discloses a suction plate structure for sucking the side surface of a work. According to the technology disclosed therein, in order to form a work suction hole, It is necessary to form a suction hole by laminating at least the lid plate part above and below the plate part where the slit for suction is formed. In this case, three or four components are required, which complicates the structure. There is.
- the disclosure of Japanese Patent Application Laid-Open No. 2001-31241 does not refer to the inspection of the four-sided work by delivery. Disclosure of the invention
- a first object of the present invention is to stably convey a workpiece (chip component) posture by the first and second rotating disks, and to transfer a work between the first and second rotating disks. It is an object of the present invention to provide a chip component transfer method and apparatus which stabilizes the transfer operation by improving the above, and realizes the stabilization of a series of work transfer over the first and second rotating disks.
- a second object of the present invention is to provide a method and an apparatus for inspecting the appearance of a chip component, which improve and stabilize the inspection accuracy of the appearance inspection of the chip component by transporting the chip component using the method and apparatus for transporting a chip component. Is to provide.
- a method for transporting chip components comprises the steps of: transporting a chip component while supporting the chip component on a horizontal surface with a first 'rotary disk, and then transporting the chip component on a vertical surface of a second rotary disk. It is characterized in that it is sucked, held and transported.
- the chip component transport method according to the present invention is characterized in that, in the above-described configuration, the first rotating disk and the second rotating disk rotate continuously.
- a chip component transport device includes: A first rotating disk for supporting and transporting chip components on a horizontal surface, and a second rotating disk for suction-holding and transporting chip components on the first rotating disk on a vertical surface are provided.
- the second rotating disk includes a grooved plate portion having suction grooves formed by half etching, and a suction hole formed by covering the suction grooves. Wherein the suction hole is open to the vertical surface.
- a large number of the suction holes are arranged in a circumferential direction of the vertical surface such that the plurality of suction holes face one chip component. It is characterized by having.
- a chip component appearance inspection method uses the above-described chip component transfer method, wherein the chip component is transferred on the first rotating disk, The upper surface of the chip component is imaged by the imager, the one side surface of the chip component is imaged by the second imager, and the third imager is conveyed by the second rotating disk while the chip component is being conveyed. It is characterized in that the lower surface of the chip component is imaged, and the other side surface of the chip component is imaged by the fourth imaging means.
- a chip component appearance inspection device includes the above-described chip component transport device,
- a third imaging means for imaging the lower surface of the chip component and a fourth imaging means for imaging the other side surface of the chip component are provided.
- a chip component conveying method is provided. After the chip component is sucked and held and transported on the vertical surface of the second rotating disk, the chip component is supported and transported on the horizontal surface by the first rotating disk. Further, the chip component conveying method according to the present invention is characterized in that the chip component is sucked and held on the outer peripheral surface of the second rotating disk rotating in the vertical plane, transported, and then rotated in the vertical plane. It is characterized in that chip components are suction-held and transported on one vertical surface of the disk.
- the chip component conveying method according to the present invention is characterized in that, in the above-described configuration, the first rotating disk and the second rotating disk rotate continuously.
- the chip component transport method according to the present invention may further include a centering roller that is inscribed in the transport path on an inner peripheral side of the transport path of the chip component transported by the first rotating disk.
- the peripheral speed of the outer peripheral surface of the centering roller is made to coincide with the peripheral speed of the first rotating disk at a position inscribed in the path, and the posture of the chip component contacting the outer peripheral surface of the centering roller is adjusted in the transport path. It is characterized in that it is corrected so that it approaches the tangential direction.
- a chip component transport device includes a second rotating disk that sucks and holds a chip component on a vertical surface and transports the chip component, and a chip component that is transported by the second rotating disk. It is specially equipped with a first rotating disk that transports chip components while supporting them on a horizontal surface.
- the chip component transport device includes a second rotating disk that rotates in a vertical plane and sucks, holds, and transports the chip component on an outer peripheral surface; And a first rotating disk for suction-holding and transporting the chip component.
- the chip component transport device in the above-described configuration, further includes a centering roller that is inscribed in the transport path on the inner peripheral side of the transport path of the chip component transported by the first rotating disk.
- the peripheral speed of the centering roller is The peripheral speed of the first rotating disk at a position inscribed in the transport path, and the posture of the chip component contacting the outer peripheral surface of the centering roller is corrected so as to approach the tangential direction of the transport path. It is characterized by doing.
- the first rotary disk may have the suction holes formed in an annular shape such that a plurality of suction holes face one chip component.
- a plurality of suction hole forming plate portions arranged at intervals, and a vacuum suction plate portion having a plurality of vacuum suction grooves formed so that one vacuum suction groove communicates with each suction hole group including a plurality of suction holes.
- the suction hole forming plate portion is integrated on the vacuum suction plate portion.
- the chip component appearance inspection method uses the above-described chip component transport method, and in a state where the chip component is transported on the first rotating disk, the upper surface of the chip component is scanned by the first imaging unit. While imaging, the second imaging means images one side of the chip component, and the third imaging means images the lower surface of the chip component while the chip component is being conveyed by the second rotating disk. Both are characterized in that the fourth imaging means images the other side surface of the chip component.
- the chip component appearance inspection method uses the above-described chip component transfer method, wherein the chip component is transferred on the first rotating disk, and the upper surface of the chip component is detected by the first imaging means.
- the second imaging means takes an image of one side of the chip component
- the fourth imaging means takes an image of the other side of the chip component
- the second rotating disk carries the chip part.
- the lower surface of the chip component is imaged by the third imaging means.
- a chip component appearance inspection device includes the above-described chip component transport device,
- a first imaging means for imaging the upper surface of the chip component and a second imaging device for imaging one side surface of the chip component.
- a third imaging means for imaging the lower surface of the chip component and a fourth imaging means for imaging the other side surface of the chip component are provided.
- a chip component appearance inspection device includes the above-described chip component transfer device,
- first imaging means for imaging the upper surface of the chip component
- second imaging means for imaging one side surface of the chip component
- fourth imaging means for imaging the
- a third imaging means for imaging the lower surface of the chip component while the chip component is being conveyed by the second rotating disk.
- stable conveyance of a work posture by the first and second rotating disks and stabilization of the transfer operation by improving the transfer of the work between the rotating disks are achieved, and the first and second rotation disks are further improved. It is possible to realize a chip component transfer method and device that achieves high-speed and stable transfer of a series of works over a rotating disk.
- a chip component appearance inspection method and device that improves the number of inspection processes, reduces inspection costs, improves inspection accuracy, and improves yield is realized. It is possible. In particular, it is effective for improving the inspection accuracy and stabilizing the appearance inspection of four surfaces of extremely small size chip parts (1005, 0603, 0402, etc.).
- FIG. 1 is a plan view showing a first embodiment of a method and an apparatus for transporting chip components and a method and an apparatus for visual inspection according to the present invention.
- FIG. 2 is a front sectional view of the first embodiment.
- FIG. 3 is a diagram showing the reception from the first rotating disk to the second rotating disk in the first embodiment.
- FIG. 4 is a cross-sectional view of a large flat section of a delivery portion.
- FIG. 4A, FIG. 4B, FIG. 4C, and FIG. 4D are components of the second rotating disk according to the first embodiment.
- FIG. 4A is a plan view of a plate portion having an annular groove.
- Fig. 4A is an enlarged view of the X part of the plan view of Fig. 4A in which a number of minute suction grooves are radially formed by half etching (indicated by the shaded area).
- FIG. 4D is a partial side view of a state in which a minute suction hole is formed by overlapping the annular grooved plate portion and the disk-shaped lid plate portion with each other.
- FIG. 5 is a schematic configuration diagram of an actuator for discharging chip components used in the first embodiment. .
- FIG. 6 is a plan view showing a conventional transfer device.
- FIG. 7 is a front sectional view of the same.
- FIG. 8 is a view taken in the direction of the arrow Y in FIG.
- FIG. 9 is a plan view showing Embodiment 2 of the present invention.
- Fig. 1 OA and Fig. 10B show the configuration of the part that supplies chip components from the parts feeder to the first rotating disk.
- Fig. 1 OA is a partial side sectional view before the improvement of the incident angle of chip components.
- 1OB is a partial cross-sectional view of Embodiment 2 in which the incident angle of the chip component is improved.
- FIGS. 11A and 11B show a configuration of a part for supplying chip components from the parts feeder to the first rotating disk in the second embodiment, and FIG. 11A shows a guide part using a side surface of the shot part.
- FIG. 11B is a sectional side view of the same.
- FIGS. 12 and 12B show another configuration of a part for supplying chip components from the parts feeder to the first rotating disk in the second embodiment
- FIG. FIG. 12B is a plan view of a configuration provided with a separate guide portion
- FIGS. 13A and 13B show the configuration of the first rotating disk in the second embodiment.
- FIG. 13A is a front sectional view
- FIG. 13B is an enlarged plan view.
- FIGS. 14A and 14B are the suction hole forming plate portions also constituting the first rotating disk.
- FIG. 14A is a plan view and FIG. 14B is a front sectional view.
- FIGS. 15A and 15B show a vacuum suction plate part also constituting the first rotating disk.
- FIG. 15A is a plan view and FIG. 15B is a front sectional view.
- FIG. 16 is a plan view showing Embodiment 3 of the present invention.
- FIG. 17 is a plan view showing Embodiment 4 of the present invention.
- FIGS. 18A and 18B show the configuration around the second rotating disk according to the fourth embodiment.
- FIG. 18A is a schematic view of a part for supplying chip components from the parts feeder to the second rotating disk.
- FIG. 18B is a schematic configuration diagram of an actuator provided around the second rotating disk for discharging chip components.
- FIG. 19 is a side view showing Embodiment 5 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- the first rotary disk 10 and the second rotary disk 20 constitute a transfer device for a rectangular parallelepiped chip component as a work, and the chip mounting surface (the chip mounting surface at the outer edge of the first rotary disk 10) Chip components 1 are sequentially supplied to the upper surface 1 1 from the parts feeder 5.
- the tip of the part feeder 5 is shaped to guide the side surface of the chip component 1 in order to properly maintain the posture of the chip component 1 when receiving the chip component 1 toward the first rotating disk 10.
- a non-vibration portion may be provided at the tip to form a guide for the chip component.
- the first rotating disk 10 is fixed to a first rotating drive shaft 16 as shown in FIG. It rotates continuously with the continuous rotation of the rotary drive shaft 16. As shown in FIGS. 2, 3, and 5, a large number of suction holes 12 are formed on the chip mounting surface 11 of the first rotating disk 10 to hold the chip component 1 by suction. .
- a non-rotating vacuum exhaust plate 13 is in close contact with the lower surface of the No. 10 rotating disk 10 (biased in the direction of close contact by a spring 19).
- the fixed vacuum suction groove 14 is formed.
- the fixed vacuum suction groove 14 is connected to a vacuum exhaust system such as a vacuum pump through a hose 15.
- the suction hole 12 on the first rotating disk 10 side vacuum-adsorbs the lower surface of the chip component 1 in a range where the suction hole 12 communicates with the fixed vacuum suction groove 14.
- the fixed vacuum is cut so that the vacuum suction of the suction holes 12 is cut from after the chip component is delivered to the second rotating disk 20 to just before the supply position of the chip component 1.
- the formation range of the suction groove 14 is set (the suction by the suction hole 12 is valid in the half-circle range for transporting the chip parts).
- the vacuum can be switched on / off by the position of the fixed vacuum suction groove formed on the evacuation plate 13.
- the second rotating disk 20 holds the side surface of the rectangular parallelepiped chip component 1 by suction on a circumferential surface (outer peripheral side surface) that forms a vertical surface thereof. It is fixed and rotates continuously with the continuous rotation of the rotary drive shaft 26.
- the second rotating disk 20 continuously rotates at substantially the same peripheral speed as the first rotating disk 10, and rotates in the same moving direction when the chip component 1 is transferred (the rotating direction itself of the second rotating disk 20). Is in the opposite direction to the first rotating disk 10). Also, the second rotating disk 20 is located above the first rotating disk 10 (there is a gap between the upper surface of the first rotating disk and the lower surface of the second rotating disk).
- the vertical circumferential surface is inside the outer edge of the chip mounting surface 11 of the first rotating disk 10 (on the center axis side of the first rotating disk), and the circumferential surface of the second rotating disk 20 is Can be moved by securely contacting the chip component side It is an effective positional relationship.
- the second rotating disk 20 has a large number of minute suction holes 31 opened on a circumferential surface forming a vertical surface.
- the center height of each suction hole 31 is matched with the center of the chip component height on the first rotating disk 10.
- the micro suction holes 31 are formed by radially forming the micro suction grooves 31a by half-etching shown by hatching in FIG. 4B, and the annular grooved plate portion 21 of FIG.
- the base of the group of minute suction grooves 31a communicates with the confluence groove 32, and the vacuum suction holes 33 formed in the disc-shaped lid plate 22 are formed. They communicate with the junction grooves 32 respectively.
- a non-rotating vacuum evacuation plate 27 is closely attached to the upper surface of the second rotating disk 20, and a fixed vacuum suction groove 28 is formed on the lower surface over a half circumference. Therefore, the vacuum suction hole 33 on the circular lid plate part 22 side is fixed vacuum suction groove 28 on the vacuum exhaust plate 27 side and the vacuum suction path 29 communicating with Connected to the exhaust system. Accordingly, the chip component 1 is vacuum-sucked in a range in which the minute suction hole 31 opened in the vertical circumferential surface on the second rotating disk 20 side communicates with the fixed vacuum suction groove 28. At this time, as shown in FIG. 3, it is preferable that one chip component 1 is sucked and held by a large number of minute suction holes 31.
- the first rotating disk 10 continuously rotates at a peripheral speed higher than the supply speed of the chip components on the parts feeder 5 side, and separates and transports the chip components 1 by the speed difference.
- the chip components 1 supplied to the chip mounting surface 11 of the first rotating disk 10 are aligned on the circumference by vacuum suction of the lower surface of the chip components 1 by the suction holes 12 of the first rotating disk 10. It is transported while maintaining a stable posture at almost equal intervals, When it has moved half a circle, it reaches the contact point P which is the transfer position to the second rotating disk 20. '
- a fixed alignment guide 15 is provided just before the transfer position as shown in FIG. 1 so that the traveling position and posture of the chip component 1 on the first rotating disk 10 are aligned. Then, the peripheral surface (outer peripheral side surface) which forms the vertical surface of the second rotating disk 20 is brought into contact with the side surface (outside) of the chip component 1 placed on the first rotating disk 10 so that the chip component side surface is moved. The second rotating disk 20 holds by suction.
- the suction of the first rotating disk 10 is turned off at the contact point P
- the second rotating disk 20 is turned on the first and second rotating disks so that the suction of the circumferential surface is turned on just before the contact point.
- Fixed vacuum suction grooves 14 and 28 are formed in the vacuum exhaust plates 13 and 27 corresponding to 10 and 20, respectively.
- the chip component 1 on the first rotating disk 10 comes closest to the second rotating disk 20 at the contact point P (as a result, comes into contact), and then gradually moves away from the second rotating disk 20. Therefore, it is desirable that the vacuum suction on the first rotating disk 10 be turned off in the vicinity of the contact point P.
- vacuum suction is performed before the contact point (for example, about 5 bands) in consideration of the stability of adsorption. Is desirably set to be effective (in the vicinity of the contact point, the vacuum suction is in an overlapped state).
- the chip components 1 are continuously transferred from the first rotating disk 10 to the second rotating disk 20 in a stable chip component posture. Therefore, the chip component 1 is not subjected to an extra force greater than the vacuum suction force, and does not break.
- the chip component 1 transferred to the second rotating disk 20 is held by vacuum suction on the side surface of the chip component 1 in the small suction hole 31 on the circumferential surface, conveyed over a half circumference, and then vacuum suction of the small suction hole 31 is performed. By being turned off (only the fixed vacuum suction groove 28 is formed in a half circumference), it falls from the circumferential surface of the second rotating disk 20 and is collected. Next, a description will be given of a configuration in the case where the appearance of a chip component is inspected by using the above-described transport device.
- a first camera C 1 and a second camera C 2 as imaging means are arranged opposite to the transfer path of the chip part 1 of the first rotating disk 10, and the chip part 1 of the second rotating disk 20 is transferred.
- a third camera C3 and a fourth camera C4 are arranged facing the route.
- the first camera C1 images and inspects (image processing inspection) the upper surface of the chip component 1
- the second camera C2 images and inspects one side surface of the chip component .1
- the third camera C3 inspects the chip component.
- the lower surface of the component 1 is imaged and inspected
- the fourth camera C4 is for imaging and inspecting the other side surface of the chip component 1, such as a CCD camera and a line sensor.
- first to eighth work detection sensors S 1 to S 8 are fixedly arranged along the transport path of the chip component 1 of the first rotating disk 10.
- ninth to fourteenth work detection sensors S 9 to S 14 are fixedly arranged along the transport path of the chip component 1 of the second rotating disk 20.
- Each of the sensors S1 to S14 is, for example, an optical sensor in which a light emitting side and a light receiving side are paired.
- the sensors S9 to S14 corresponding to the second rotating disk 20 are schematically shown in a horizontal arrangement in FIG. 1, but are arranged on the vertical circumferential surface of the second rotating disk 20. Since the chip component 1 is sucked and conveyed, the sensors S9 to S14 are actually arranged in the vertical direction (vertical direction).
- the first to third actuators A1 to A3 are used to remove the chip component 1 on the first rotating disk 10.
- the fourth and fifth actuators A4, A5 are arranged corresponding to the transfer path of the chip component 1 on the second rotating disk 10.
- each of the actuators A1 to A5 employs a chip component discharging mechanism 40 using a piezo element, for example, in order to realize a discharging operation of a minute work.
- the actuators A 4 and A 5 drop the chip components adsorbed on the vertical circumferential surface of the second rotating disk 20 downward.
- the third, sixth, ⁇ 9, and 12th work detection sensors S 3, S 6, S 9, and S 12 provided in front of the first to fourth cameras C 1 to C 4 are continuous. It generates a trigger signal for imaging a conveyed object.
- second, fourth, seventh, tenth, and thirteenth work detection sensors S 2, S 4, S 7, S 7 provided in front of the first to fifth actuators A 1 to A 5. 10 and S13 are for generating a trigger signal for the work discharging operation.
- a chip component 1 as a workpiece is sequentially supplied from a tip end of a parts feeder 5 to a chip mounting surface (upper surface) 11 on an outer edge of the first rotating disk 10. Since the first rotating disk 10 is continuously rotating at a peripheral speed higher than the supply speed of the chip components on the parts feeder 5 side, the chip components 1 are separated and conveyed by the speed difference.
- the chip components 1 supplied to the chip mounting surface 11 of the first rotating disk 10 are aligned on the circumference by being vacuum-adsorbed by the suction holes 12 of the first rotating disk 10. It is conveyed while maintaining a stable posture at almost equal intervals.
- the first actuator A 1 When one chip component passes before the first and second workpiece detection sensors S 1 and S 2, the pair of first and second workpiece detection sensors S 1 and S 2 In the case of an unaligned (pitch defect) state, this fact is detected, the first actuator A 1 is operated, and the unaligned chip component 1 is returned to the parts feeder 5 via the unaligned component collecting section 7.
- the unaligned parts collection unit 7 is a velvet conveyor or the like. .
- the aligned chip components 1 that passed in front of the first actuator A 1 are detected after passing by the 3rd peak detection sensor S 3 (to learn continuous conveyed objects, to use the sensor in front of the camera for imaging).
- a trigger signal is generated
- the top surface is imaged and inspected (image processing inspection) by the first camera C1
- chip parts with defective inspection results are inspected for the fourth workpiece.
- the output sensor S4 the sensor in front of the actuator generates a trigger signal for discharging
- the second actuator A2 discharges.
- the fifth peak detection sensor S5 is for confirming emission.
- the chip component 1 after the top surface inspection is further detected by the sixth work detection sensor S6 after passing through, and one of the sides is imaged and inspected by the second camera C2. After passing is detected in S7, it is discharged by the third actuator A3.
- the eighth work detection sensor S8 is for discharge confirmation.
- the chip component 1 that has passed in front of the third actuator A 3 is guided by the fixed alignment guide 15 so that the orbital radius and posture of the chip component 1 are appropriate, and as shown in FIG. Reach point 20 abutment point P.
- both the vacuum suction of the suction hole 12 on the top surface of the first rotating disk 10 and the vacuum suction of the suction hole 31 on the side surface of the second rotating disk 20 are turned on.
- the chip component 1 that has come into contact with the vertical surface of the second rotating disk 20 is held on the second rotating disk 20 side by suctioning the side surface.
- the vacuum suction of the suction hole 12 on the first rotating disk 10 is turned off, so that the chip part 1 is conveyed with the continuous rotation of the second rotating disk 20.
- the ninth workpiece detection sensor S9 After the chip component 1 transferred to the second rotating disk 20 is detected to pass by the ninth workpiece detection sensor S9, the lower surface is imaged and inspected by the third camera C3, and the inspection result is a defective chip component. Is discharged by the fourth actuator A4 after the passage detection by the 10th work detection sensor S10.
- the first work detection sensor SI 1 is for discharge confirmation.
- the chip part 1 after the lower surface inspection is further detected by passing through the first and second workpiece detection sensors S12, and then the other side is imaged and inspected by the fourth camera C4.
- the work detection sensor S13 After the passage is detected by the work detection sensor S13, the work is discharged by the fifth actuator A5.
- the 14th work detection sensor S14 is for discharge confirmation. Then, the inspection of the upper surface, one side surface, the lower surface, and the other side surface, a total of four surfaces, is completed.
- the non-defective chip component 1 reaches the non-defective product discharge position Q, where the suction hole 3 1
- the chip component 1 is discharged and collected by turning off the vacuum suction. According to the first embodiment, the following effects can be obtained.
- the first rotating disk 10 sucks, holds and transports the chip component 1 as a work on the horizontal surface, and then sucks, holds, and transports the chip component 1 on the vertical surface of the second rotating disk 20.
- chip components can be transferred from the first rotating disk 10 to the second rotating disk 20 irrespective of variations in the thickness of the chip components, and the chip component transfer operation is reliable. There is no inconvenience or breakage of the chip component caused by the variation in the thickness of the chip component as in the conventional example shown in FIGS. 6 and 7. In addition, it can be transferred without changing the orientation of chip components (without vertical or horizontal inversion), and stable transport is possible.
- the second rotating disk 20 is formed by arranging a large number of minute suction holes 3 1 in the circumferential direction on a circumferential surface forming a vertical surface thereof, and a large number of minute suction holes By sucking in the holes 31, stable conveyance can be performed without causing a shift in the conveyance posture. Then, the second rotating disk 20 is provided with an annular grooved plate portion 21 in which a large number of suction grooves 31 a are formed in a half-etched shape by half etching, and the suction grooves 31 a are covered with suction holes 3.
- the second rotating disk 20 can be configured.
- the inspection accuracy is improved, and the yield in the inspection process can be expected to be improved.
- it is intended to improve inspection accuracy and stabilize ultra-small size chip parts with a length of 1 ram or less (1005 type, 0603 type, 0402 type, etc.) and to provide highly reliable inspection.
- a method and apparatus are provided. Note that the thickness and width of the above-mentioned chip component shape are almost the same, such as capacitors, inductors, thermistors, and varistors. In other words, the cross-section of the chip component is almost square, Chip components are preferred for transport. It is not suitable for a flat chip with a thin thickness like a chip resistor.
- Embodiment 2 of the present invention will be described with reference to FIGS. 9 to 15A and 15B.
- the first rotating disk 10 and the second rotating disk 20 constitute a transfer device for a rectangular parallelepiped chip component as a work, and a chip mounting surface at the outer edge of the first rotating disk 10. (Upper surface)
- the configuration in which chip components 1 are sequentially supplied from the parts feeder 5 to 11 is the same as in the first embodiment.
- the chute portion of the parts feeder 5 is placed above the chip mounting surface 11 of the first rotating disk 10 as shown in FIG. 10.
- a small gap is required so that the first rotating disk 10 and the chute portion of the parts feeder 5 do not interfere with each other.
- the chip component 1 is transferred to the first rotating disk 10, the bottom (transfer surface) 5 b of the work transport groove 5 a as a chute portion of the parts feeder 5 and the chip mounted on the first rotating disk 10. If the distance D from the mounting surface 11 is not shortened as much as possible, the inclination (incident angle) of the chip component at the time of delivery will increase, causing a problem of poor posture such as the standing of the chip component 1.
- Fig. 1 In the configuration before OA measures, the thickness D of the bottom surface of the work transfer groove 5 is not thin, so the distance D from the chip mounting surface 11 of the first rotating disk 10 is large, and the extremely small chip components In the case of the incident angle becomes excessive, As shown in Fig.
- the thickness of the bottom part ⁇ of the work transfer groove 5 is made as thin as possible T ', the distance from the chip mounting surface 11 of the first rotating disk 10 is reduced to D', By forming an inclined surface 5c at the tip of the force transport groove 5a, the incident angle of the chip component is reduced, and the posture of the chip component 1 to be transferred to the chip mounting surface 11 is stabilized. be able to. This effect is particularly noticeable in the case of extremely small chip components.
- the chute portion of the parts feeder 5 is, as shown in FIGS. 11A and 11B, of the four longitudinal surfaces of the chip component 1.
- the chip part 1 comes out of the chute and is supplied to the chip mounting surface 11, there is no constraint surface.
- the chip component rotates and the posture of the chip component varies. Variations in the orientation of the chip components may cause a reduction in inspection accuracy due to variations in the appearance of the inspection surface in the appearance inspection in a later process.
- the bottom part 5b of the shoot part is used to restrain the side surface of the chip part 1 at the transfer position as shown in FIGS. 11A and 11B.
- a work attitude regulation guide 5 d with both sides extended is provided, or a separate work attitude regulation guide 5 d ′ is provided as shown in FIGS. 12A and 12B.
- a 0603 size capacitor or the like has a work width of 0.3 ⁇ 0.03, a length of 0.6 ⁇ 0.03 mm, and a guide width of 0.33 ram or more. Actually, it is necessary to consider the maximum dimension and the guide width dimension of 0.35 awake. Considering the work with the smallest tolerance, a gap of 0.08 mm at the maximum occurs, and a work length of 0.6 mm causes a maximum inclination of 7.6 degrees. From the experimental results, it was found that the allowable inclination of the chip component in the visual inspection was within ⁇ 6 degrees.
- a centering roller 60 serving as a posture correcting section for further correcting the posture of the chip component before the appearance inspection is provided above the first rotating disk 10.
- the centering roller 60 rotates continuously, and the outer peripheral surface is inscribed in the inner peripheral side of the circular transport path of the chip component 1 transported by the first rotating disk 10.
- the peripheral speed of the centering roller 60 coincides with the peripheral speed of the first rotating disk 10 at a position inscribed in the transport path (coincides with the peripheral velocity of the inner side surface of the chip component moving on the transport path).
- the posture is corrected so that the posture of the chip component 1 in contact with the outer peripheral surface of the centering roller 60 approaches the tangential direction of the transport path.
- the posture of the chip component due to frictional resistance at the time of contact can be improved.
- Deterioration and contact resistance with the centering roller 60 are alleviated, and the posture of a chip component as a moving object during continuous high-speed conveyance can be corrected.
- the position of the chip component 1 is suppressed within a certain variation range by the work posture regulation guides 5 d, 5 d ′ at the tip of the chute portion of the parts feeder 5, and the tip is corrected by the centering roller 60 for further accurate position correction.
- the component posture can be kept within ⁇ 5 degrees (within 4 ⁇ , where ⁇ is standard deviation).
- the first rotating disk 10 conventionally, when supplying a work to a continuously rotating suction disk, the work is supplied irregularly. It was difficult to control the positional relationship between the workpiece and the workpiece. Therefore, a porous suction disk was used, and the workpiece could be suction-held regardless of the position of the workpiece and the suction hole.
- vacuum switching cannot be performed well with a porous disk.
- the delivery of the work is not stable. (Because of the porosity, the vacuum is circulated around the work, and the delivery operation is not stable because the vacuum is not cut off when the work is delivered.)
- the first rotating disk 10 has the structure shown in FIGS. 13A and 13B to 15A and 15B. That is, the first rotating disk 10 has the suction holes 12 such that the plurality of suction holes 12 shown in FIGS. 14A and 14B face (open) with respect to one chip component 1.
- a number of suction hole forming plates 65 arranged at equal intervals in a ring, and one suction hole group consisting of a plurality of suction holes 12 are provided with one vacuum suction groove 67 shown in Fig. 15A and Fig. 15B.
- a vacuum suction plate portion 66 in which a plurality of vacuum suction grooves 67 are separately formed in an island shape so as to communicate with each other, as shown in FIGS.
- the suction hole forming plate portion 65 is integrally formed on the portion 66.
- a non-rotating vacuum exhaust plate 13 is in close contact with the lower surface of the first rotating disk 10, and communicates with the fixed vacuum suction groove 14.
- the vacuum suction groove 67 to be suctioned is vacuum-sucked.
- etching or laser processing on a stainless steel plate is used.
- the diameter of the suction hole is desirably 0.1 or less, but the variation in the hole diameter becomes large in etching.
- etching there is a restriction on the hole diameter that can be processed and the thickness of the stainless steel material. (In general, the thickness of the stainless steel plate is 0 because the hole diameter that can be processed and the thickness are limited to 1: 1.) lmm or less), and it is difficult to obtain the rigidity of stainless steel. For this reason, adsorption For forming the holes, it is appropriate to apply laser processing using a UV-YAG laser or a femtosecond laser to the stainless steel plate. In this case, it is possible to achieve a plate thickness of 0.3.
- the chip passes through the center of the chip component transport path to suck and hold the chip components on the vacuum suction plate part 66 provided with island-shaped vacuum suction grooves 67.
- chip components can be suctioned and held regardless of the chip component supply position, and vacuum is applied to each island-shaped vacuum suction groove 67.
- Suction communication (ON) and shut-off (OFF) are possible, and chip components can be stably delivered during continuous transfer of chip components 1.
- the other configuration of the second embodiment is the same as that of the above-described first embodiment, and the same or corresponding portions are denoted by the same reference characters and description thereof is omitted.
- FIG. 16 shows Embodiment 3 of the present invention, in which the arrangement of cameras as imaging means for performing an appearance inspection is changed.
- the first camera Cl, the second camera C2, and the fourth camera C4 as imaging means are arranged facing the transport path of the chip component 1 of the first rotating disk 10;
- the third camera C3 is arranged to face the transport path of the chip component 1 of the rotating disk 20.
- the first camera C 1 corresponding to the transport path of the first rotating disk 10 captures and inspects (image processing inspection) the top surface of the chip component 1, and the second camera C 2 captures one side surface of the chip component 1, Inspection, the fourth camera C 4 images and inspects the other side surface of the chip component 1, and the third camera C 3 corresponding to the transport path of the second rotating disk 20 images and inspects the lower surface of the chip component 1.
- a CCD camera, a line sensor, and the like images and inspects the lower surface of the chip component 1.
- the first rotating disk 10 conveys the chip component about 3/4 times to enable the arrangement of three cameras.
- FIG. 17 shows Embodiment 4 of the present invention, similar to Embodiments 1, 2, and 3 in that a first rotating disk 10 and a second rotating disk 20 are used to transport chip components. However, this shows a configuration in which the order of chip component transportation is changed.
- the chip components 1 are sequentially supplied from the parts feeder 5 so as to be in contact with the circumferential surface (outer peripheral side surface) forming the vertical surface of the second rotating disk 20.
- the second rotating disk 20 has a minute suction hole 3 1 on the circumferential surface, whereby the chip component 1 is held by vacuum suction. After being conveyed for half a circumference, it is transferred to the chip mounting surface (upper surface) 11 on the outer edge of the first rotating disk 10 by releasing the vacuum suction.
- the chip component 1 transferred to the first rotating disk 10 is held by vacuum suction by the minute suction holes of the chip mounting surface 11, and is conveyed over a half circumference.
- a flat surface that supports the chip component 1 at a predetermined height is provided at the position where the chip component 1 is supplied from the parts feeder 5 to the circumferential surface of the second rotary disk 20.
- the second rotating disk 20 is continuously rotated at a peripheral speed higher than the supply speed of the chip components on the parts feeder 5 side, and the chip components 1 are separated and conveyed by the speed difference. be able to.
- FIG. 18B is an example of the first, fourth and fifth actuators A 1, A 4 and A 5 according to the fourth embodiment.
- the first actuator A 1 uses a piezo actuator 75 using a piezo element.
- unaligned (poor pitch) chip components are dropped and discharged.
- the fourth and fifth actuators A4 and A5 the chip components with poor appearance are dropped and discharged.
- Work detection sensors are arranged before and after each actuator (the sensor function is the same as that described in the first embodiment).
- the other configuration of the fourth embodiment is the same as that of the above-described first or second embodiment, and the same or corresponding portions are denoted by the same reference characters and description thereof is omitted.
- the fourth embodiment an overall operation in performing a visual inspection of a chip component will be described.
- a chip component 1 as a workpiece is sequentially supplied from the tip of the parts feeder 5 so as to be in contact with the second rotating disk 20 circumferential surface (outer peripheral side surface). Since the second rotating disk 20 is continuously rotating at a peripheral speed higher than the supply speed of the chip components on the parts feeder 5 side, the chip components 1 are separated and conveyed by the speed difference.
- the chip component 1 supplied so as to be in contact with the circumferential surface of the second rotating disk 20 is aligned by vacuum suction of one side surface thereof by the suction hole 31 of the second rotating disk 20. It is conveyed while maintaining a stable posture at almost equal intervals.
- the unaligned part collection unit 7 is a belt conveyor or the like.
- the chip components 1 in the aligned state that have passed through the first actuator A 1 are imaged and inspected on the lower surface by the third camera C 3, and the chip components having a defective inspection result are ejected by the fourth actuator A 4.
- the chip component 1 after the lower surface inspection is further imaged and inspected on one side surface by a fourth camera C4, and the chip component having a defective inspection result is discharged by a fifth actuator A5.
- the vacuum suction of the suction holes 12 on the top surface of the first rotating disk 10 and the second rotating disk 20 Both the suction hole 31 on the side and the vacuum suction of 1 are on, and the chip component 1 that is in contact with the horizontal surface of the first rotating disk 10 is sucked on the bottom surface and held on the first rotating disk 10 side . Thereafter, as the chip component 1 moves, the vacuum suction of the suction hole 31 on the second rotating disk 20 is turned off, so that the chip component 1 is conveyed with the continuous rotation of the first rotating disk 10. .
- Chip components with defective inspection results are discharged by the second factorizer A2.
- the chip component 1 after the top surface inspection is further imaged and inspected on the other side by the second camera C 2, and the chip component having a defective inspection result is discharged by the third factorizer A 3.
- the non-defective chip component 1 that has been inspected for a total of four surfaces, the lower surface, one side surface, the upper surface, and the other side surface reaches the non-defective product discharge position Q, where the vacuum suction of the first rotating disk 10 is turned off.
- the chip component 1 is discharged and collected by a collecting means (not shown).
- the first rotating disk 10 is positioned below the second rotating disk 20 and the bottom surface of the chip component is suction-supported and transported by the first rotating disk 10.
- a configuration is also possible in which the disk 10 is disposed above the second rotating disk 20 and the suction hole 12 is opened downward, and the upper surface of the chip component is suction-supported and transported by the first rotating disk 10.
- first rotating disk 10 and the second rotating disk 20 rotate continuously in a horizontal plane.
- first rotating disk 10 and the second rotating disk 2 A fifth embodiment in which both 0 are continuously rotated in a vertical plane (vertical plane) will be described with reference to FIG.
- the second rotating disk 20 is rotated in a vertical plane, and sucks and holds the chip component on the circumferential surface (outer peripheral surface) where the suction hole is opened to convey the chip component. And supplies the chip component 1 from the parts feeder 5 onto the circumferential surface.
- the first rotating disk 10 is rotating in the vertical plane, receives the chip component from the second rotating disk 20 at point P, and sucks and holds the chip component on one vertical surface where the suction hole is open. It is to be transported.
- both the first rotating disk 10 and the second rotating disk 20 rotate continuously in a vertical plane (vertical plane)
- the configuration and operation are substantially the same as those of the fourth embodiment described above, and are the same.
- the same reference numerals are given to the corresponding parts, and the description is omitted.
- the transport system of the chip component in each of the above embodiments is provided outside the chip component. It can be used not only for visual inspection but also for other measuring instruments. Further, in each of the above embodiments, an actuator using a piezo element is used as the chip component discharging mechanism. However, it is also possible to adopt a configuration in which air is blown off as a method for discharging chip components such as defective products. .
- the camera arrangement of the third embodiment shown in FIG. 16 is also applicable to the fourth and fifth embodiments, and the bottom surface of the chip component is imaged with one force camera on the second rotating disk side. Alternatively, the remaining three surfaces may be imaged by the three cameras on the first rotating disk side.
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004800433159A CN1968876B (zh) | 2004-04-13 | 2004-09-07 | 片式部件搬送装置以及外观检查装置 |
| US11/578,062 US7987968B2 (en) | 2004-04-13 | 2004-09-07 | Chip component carrying method and system, and visual inspection method and system |
| US13/174,001 US8499924B2 (en) | 2004-04-13 | 2011-06-30 | Chip component carrying method and system, and visual inspection method and system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004117651A JP4297350B2 (ja) | 2003-04-28 | 2004-04-13 | チップ部品搬送方法及び装置、並びに外観検査方法及び装置 |
| JP2004-117651 | 2004-04-13 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/578,062 A-371-Of-International US7987968B2 (en) | 2004-04-13 | 2004-09-07 | Chip component carrying method and system, and visual inspection method and system |
| US13/174,001 Division US8499924B2 (en) | 2004-04-13 | 2011-06-30 | Chip component carrying method and system, and visual inspection method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005100215A1 true WO2005100215A1 (ja) | 2005-10-27 |
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ID=35149892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/013284 Ceased WO2005100215A1 (ja) | 2004-04-13 | 2004-09-07 | チップ部品搬送方法及び装置、並びに外観検査方法及び装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US7987968B2 (ja) |
| KR (1) | KR100849003B1 (ja) |
| CN (1) | CN1968876B (ja) |
| WO (1) | WO2005100215A1 (ja) |
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| JP2001031241A (ja) | 1999-05-20 | 2001-02-06 | Daishin:Kk | 部品搬送装置及びその製造方法 |
| JP4251307B2 (ja) | 1999-05-31 | 2009-04-08 | オカノ電機株式会社 | 外観検査装置 |
| JP4035679B2 (ja) * | 1999-07-23 | 2008-01-23 | クオリカプス株式会社 | 錠剤の側面検査装置、及び表裏面検査装置、並びにこれらを用いた錠剤の外観検査装置 |
| JP3726657B2 (ja) | 2000-08-28 | 2005-12-14 | 松下電器産業株式会社 | 電子部品製造装置 |
| JP2002286646A (ja) | 2001-03-23 | 2002-10-03 | Tokyo Weld Co Ltd | 外観検査装置 |
-
2004
- 2004-09-07 WO PCT/JP2004/013284 patent/WO2005100215A1/ja not_active Ceased
- 2004-09-07 KR KR1020067023564A patent/KR100849003B1/ko not_active Expired - Fee Related
- 2004-09-07 US US11/578,062 patent/US7987968B2/en not_active Expired - Fee Related
- 2004-09-07 CN CN2004800433159A patent/CN1968876B/zh not_active Expired - Fee Related
-
2011
- 2011-06-30 US US13/174,001 patent/US8499924B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62136281A (ja) * | 1985-12-10 | 1987-06-19 | 株式会社村田製作所 | チツプ部品の外観検査装置 |
| JPH0342415A (ja) * | 1989-07-05 | 1991-02-22 | Nikka Densoku Kk | 粒状物搬送および検査装置 |
| JP2002193440A (ja) * | 2000-12-26 | 2002-07-10 | Kao Corp | 搬送物の搬送方法 |
| JP2003341832A (ja) * | 2002-05-22 | 2003-12-03 | Far East Engineering Co Ltd | チップ分離搬送装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104388A (zh) * | 2019-05-27 | 2019-08-09 | 南京涵铭置智能科技有限公司 | 一种柔性电路板用视觉检测机器人及其传动方法 |
| CN116553168A (zh) * | 2022-01-27 | 2023-08-08 | 安益隆展业股份有限公司 | 用于检测电子元件的取料设备及其方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US8499924B2 (en) | 2013-08-06 |
| CN1968876B (zh) | 2012-10-31 |
| US20110261185A1 (en) | 2011-10-27 |
| CN1968876A (zh) | 2007-05-23 |
| US20070205084A1 (en) | 2007-09-06 |
| KR20070011472A (ko) | 2007-01-24 |
| KR100849003B1 (ko) | 2008-07-30 |
| US7987968B2 (en) | 2011-08-02 |
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