WO2015151896A1

WO2015151896A1 - Housing unit and electronic component conveyance device

Info

Publication number: WO2015151896A1
Application number: PCT/JP2015/058716
Authority: WO
Inventors: 日出夫南; 木村　浩之
Original assignee: 上野精機株式会社
Priority date: 2014-04-04
Filing date: 2015-03-23
Publication date: 2015-10-08
Also published as: JPWO2015151896A1; TWI579202B; JP5936215B2; TW201607842A; WO2015151276A1

Abstract

The purpose of the present invention is to provide housing unit which can appropriately house electronic components even if there is manufacturing error in the position in which housing areas are formed on a housing body such as a carrier tape, tray, or wafer sheet, and to provide an electronic component conveyance device. A taping unit (2) has a shift verification position (P2) different from a receiving position (P1), and by displacing a carrier tape (T), each pocket (T1) can be positioned at the receiving position (P1) after passing through the shift verification position (P2). In the shift verification position (P2), the pocket (T1) is imaged with a second imaging unit (27), and the image captured by the second imaging unit (27) is analyzed to detect shift relative to the reference position and reference orientation of the pocket (T). Then, before an electronic component (D) is housed in the pocket (T1) in which the shift was detected and which is in the housing position (P1), a correction unit (25) rotates and moves in a plane the carrier tape (T) in order to cancel out the shift of said pocket (T1).

Description

Storage unit and electronic component transfer device

The present invention relates to a storage unit that stores an electronic component that has passed through a transfer path, and an electronic component transfer device that forms the transfer path and includes the storage unit.

Electronic parts such as semiconductor elements are separated into individual pieces through various assembly processes such as dicing, mounting, bonding, and sealing, and then various inspection processes are performed. This process is generally performed by an electronic component inspection apparatus called a test handler. In this method, the main table is rotated, the electronic components of the transport unit are held by a holding unit such as a suction nozzle, and transported to each inspection apparatus for inspection. The electronic component that has been inspected is accommodated in the pocket of the carrier tape in the taping unit.

The carrier tape is a long belt-like body, and a row of pockets is formed along the longitudinal direction. The pockets have a size and a depth for storing electronic components by design, and are equally spaced along the longitudinal direction. In addition, the pocket is designed to be positioned at the center of the width of the tape, and the direction is aligned so that each side is parallel to the width direction and the longitudinal direction of the carrier tape (see, for example, Patent Document 1).

For this reason, the taping unit sets an accommodation position that overlaps with the transport path on the carrier tape, and if the carrier tape is intermittently sent so that each pocket sequentially moves toward the accommodation position, the electronic components are sequentially placed in each pocket. Could be inserted.

JP 2012-001233 A

The position of the pocket with respect to the carrier tape is, by design, located at the center of the width of the tape, and although the direction is aligned so that each side is parallel to the width direction and the longitudinal direction of the carrier tape, it is subtle due to manufacturing errors. Variations may occur. Therefore, it is only necessary to design the size of the pocket in consideration of the manufacturing error and the allowable clearance between the electronic component and the pocket.

However, in recent years, minute electronic components such as 0603 size (0.6 mm × 0.3 mm) and 0402 size (0.4 mm × 0.2 mm) are becoming widespread. In an electronic component of this size, the clearance with the pocket is strict, and even if the pocket is slightly shifted due to a manufacturing error, a collision between the wall defining the pocket and the electronic component or an insertion error occurs. For example, when a 0.7 mm × 0.4 mm square pocket is formed in accordance with the 0603 size, a collision between the electronic component and the wall defining the pocket occurs just by shifting the pocket to the side of 0.1 mm. An insertion error occurs only by shifting to the side of 0.2 mm.

Such a problem may occur for any container that accommodates electronic components such as trays and wafer sheets in addition to the carrier tape. The present invention has been proposed in order to solve the above-described problems, and is appropriate even if there is a manufacturing error in the formation position of the storage location with respect to the storage body such as a carrier tape, a tray, or a wafer sheet. It is an object of the present invention to provide a storage unit and an electronic component transport device that can store electronic components.

The storage unit according to the present invention is a storage unit that holds a storage body having a large number of storage locations and stores electronic parts transported along a transport path at a storage position, and moves the storage body in a plane, A first moving means for positioning each of the accommodation locations at the accommodation position; an accommodation location imaging means for imaging the accommodation location before reaching the accommodation position or the accommodation position; and an image captured by the accommodation location imaging means. And a housing location deviation detecting means for detecting the displacement of the housing location, and the housing body so as to eliminate the displacement of the housing location before the electronic component is housed in the housing location where the displacement is detected. And a second moving means for moving the plane.

Component imaging means for imaging the electronic component on the transport path, component position detection means for analyzing an image captured by the component imaging means and detecting a deviation from a reference position of the electronic component, and a reference for the electronic component You may make it further provide the 3rd moving means to which the said electronic component is planarly moved so that the shift | offset | difference with respect to a position may be eliminated.

A component imaging unit that images the electronic component on the transport path; and a component position detection unit that analyzes an image captured by the component imaging unit and detects the position of the electronic component. The detection means detects a displacement of the accommodation location relative to the electronic component based on the position of the electronic component detected by the component position detection means and an image captured by the accommodation location imaging means, and the second movement means The accommodating body may be moved in a plane so as to eliminate the displacement of the accommodating portion with respect to the electronic component.

The second moving means may eliminate the displacement of the accommodation location only when the inner wall of the accommodation location and the electronic component come within a predetermined distance.

The second moving means may eliminate the displacement of the accommodation location only when the displacement of the accommodation location detected by the accommodation location deviation detection means is greater than or equal to a predetermined value.

A determination unit configured to determine the proximity between the inner wall of the housing location and the electronic component; and a drive control unit configured to control driving or non-driving of displacement cancellation by the second moving unit according to the determination unit. You may do it.

The electronic component transport device according to the present invention is an electronic component transport device that transports an electronic component along a transport path and stores the electronic component in a container having a large number of storage locations, and holds the electronic component. And holding means for separating, a transport table having the holding means on the outer periphery, intermittently rotating, a storage position set at one stop position of the holding means, and moving the storage body in a plane, Analyzing the first moving means for positioning the accommodation location at the accommodation position, the accommodation location imaging means for imaging the accommodation location before reaching the accommodation position or the accommodation position, and the image captured by the accommodation location imaging means And a housing location deviation detecting means for detecting a displacement of the housing location, and before the electronic component is housed in the housing location where the displacement is detected, the displacement of the housing location is eliminated. Further comprising a second moving means for planar moving the container in so that the features a.

The holding means extends outward in the radial direction of the transfer table, bends toward the container, holds an electronic component at a bent tip, and the storage position is set at a bending destination of the holding means, The deviation confirmation position may be set closer to the center of the transfer table than the bent tip of the holding means.

Rails extending in a direction orthogonal to the radial direction of the transfer table may be provided on the outer periphery of the transfer table, and the holding means may be guided by the rails and slide to advance and retract toward the container. .

According to the present invention, the reference position and the reference orientation can be maintained at the storage position even when the storage location of the electronic component is shifted due to a manufacturing error, and the electronic component can be stored with high accuracy. Contact with the wall that defines the part storage location and insertion errors are less likely to occur.

It is a side view of the taping unit which concerns on 1st Embodiment. It is a top view of the taping unit concerning a 1st embodiment. It is a schematic diagram which shows the shift | offset | difference analysis of the accommodation location by the taping unit which concerns on 1st Embodiment. It is a schematic diagram which shows the gap | deviation correction | amendment of the pocket by the taping unit which concerns on 1st Embodiment, and shows a 1st process. It is a schematic diagram which shows the gap | deviation correction | amendment of the pocket by the taping unit which concerns on 1st Embodiment, and shows a 2nd process. It is a schematic diagram which shows the gap | deviation correction | amendment of the pocket by the taping unit which concerns on 1st Embodiment, and shows a 3rd process. It is a schematic diagram which shows the gap | deviation correction | amendment of the pocket by the taping unit which concerns on 1st Embodiment, and shows a 4th process. It is a top view which shows the structure of the electronic component conveying apparatus which concerns on 1st Embodiment. The 1st arrangement | positioning method of the taping unit with respect to the electronic component conveying apparatus which concerns on 1st Embodiment is shown, (a) is a top view, (b) is a side view. The 2nd arrangement | positioning method of the taping unit with respect to the electronic component conveying apparatus which concerns on 1st Embodiment is shown, (a) is a top view, (b) is the side view seen from the A direction of the top view. The 3rd arrangement | positioning method of the taping unit with respect to the electronic component conveying apparatus which concerns on 1st Embodiment is shown, (a) is a top view, (b) is the side view seen from the B direction of the top view. It is a top view which shows the structure of the electronic component conveying apparatus which concerns on 2nd Embodiment. It is a block diagram which shows control of the taping unit mounted in the electronic component conveying apparatus which concerns on 2nd Embodiment. It is a schematic diagram which shows the shift | offset | difference analysis of the electronic component by the taping unit which concerns on 2nd Embodiment. It is a schematic diagram which shows the gap | deviation analysis of the pocket by the taping unit which concerns on 2nd Embodiment. It is a schematic diagram which shows the gap | deviation correction | amendment of the pocket by the taping unit which concerns on 2nd Embodiment. It is a top view which shows the structure of the electronic component conveying apparatus which concerns on 3rd Embodiment. It is a schematic diagram which shows conveyance to the carrier tape of the electronic component by the electronic component conveying apparatus which concerns on 3rd Embodiment. It is a block diagram which shows the control by the taping unit which concerns on 3rd Embodiment. It is a block diagram which shows the control structure of the correction | amendment part which concerns on 4th Embodiment. It is a flowchart which shows operation | movement of the determination part and drive control part which concern on 4th Embodiment. It is a schematic diagram which shows threshold value Xt and threshold value Yt in 4th Embodiment. It is a graph which showed the relationship with a threshold value regarding 4th Embodiment by making a horizontal axis an electronic component and making a vertical axis | shaft into position shift. It is a table | surface which concerns on 4th Embodiment and shows the average tact time of the accommodation operation | movement to the pocket of an electronic component. It is a schematic diagram concerning the modification 1 of 4th Embodiment and calculating the proximity of the inner wall of a pocket and an electronic component. It is a schematic diagram concerning the modification 2 of 4th Embodiment and calculating the proximity of the inner wall of a pocket and an electronic component. It is a side view which shows the tray movement unit which is another aspect of a storage unit. It is a top view which shows the tray movement unit which is another aspect of a storage unit.

(First embodiment)
(Taping unit)
A taping unit according to an embodiment of the present invention will be described in detail with reference to the drawings. First, the taping unit 2 shown in FIGS. 1 and 2 is an example of a housing unit that holds the housing and houses the electronic component D in the housing location. The taping unit 2 holds a carrier tape T and accommodates an electronic component D in each pocket T1 formed in the carrier tape T.

At one location on the carrier tape T, there is an accommodation position P1 that overlaps the transport path of the electronic component D. The taping unit 2 positions each pocket T1 in the storage position P1, and stores the electronic component D transported to the storage position P1 along the transport path in the pocket T1. The electronic component D is transported along the transport path while being held by the holding means 11. The holding means 11 stops at the storage position P1, and separates the electronic component D toward the pocket T1.

Also, the other portion on the carrier tape T has a storage inspection position P3. In the storage inspection position P3, erroneous storage of the electronic component D stored in the pocket T1 is detected. That is, the storage inspection position P3 includes a first imaging unit 26 that captures an image of the inside of the pocket T1 located at the storage inspection position P3.

The electronic component D accommodated in the pocket T1 is a component used for electrical products. Examples of the electronic component D include a semiconductor element and a resistor or capacitor other than the semiconductor element. Examples of the semiconductor element include discrete semiconductors such as transistors, diodes, LEDs, and thyristors, and integrated circuits such as ICs and LSIs. Further, the electronic component D other than the semiconductor includes a chip capacitor, a chip resistor, an inductor, a filter, an isolator and the like.

The carrier tape T held by the taping unit 2 is a long strip made of a chemical product such as paper or polystyrene resin, and is flexible so that it can be unwound and wound. In the carrier tape T, a row of pockets T1 is formed along the longitudinal direction. The pocket T1 has a size and depth for storing the electronic component D in design, and is equally spaced along the longitudinal direction. Further, the pocket T1 is designed to be positioned at the center of the width of the tape, and the direction is aligned so that each side is parallel to the width direction and the longitudinal direction of the carrier tape T.

This taping unit 2 moves the carrier tape T by two moving means having different purposes. The first moving means is two

sprockets

21 and 22 that move the carrier tape T horizontally in the longitudinal direction to sequentially move the pockets T1 to a later-described displacement confirmation position P2, accommodation position P1, and accommodation inspection position P3. . The second moving means is a correcting unit 25 that moves the carrier tape T in advance so that the pocket T1 is in the reference position and orientation when the pocket T1 is positioned at the storage position P1. The reference position is a position at which the position immediately below the holding means 11 and the center of the pocket T1 coincide with each other when the holding means 11 reaches the storage position P1. The reference direction is a direction in which the width direction or the longitudinal direction of the carrier tape T before correction coincides with one side of the pocket T1.

The two

sprockets

21 and 22 are intermittently rotated while being fitted in sprocket holes formed at equal intervals along the longitudinal direction of the carrier tape T, thereby causing the carrier tape T to run intermittently and each pocket. T1 is sequentially positioned at the storage position P1. The two

sprockets

21 and 22 are disks having the same diameter with protrusions protruding along the circumferential surface, arranged on the same vertical plane, and have the rotation axes parallel and at the same height. The carrier tape T is bridged to both the

sprockets

21 and 22, and the protrusions are engaged with the sprocket holes. An external force is received from the projection through the sprocket hole, and travels in the longitudinal direction in conjunction with the rotation of the

sprockets

21 and 22.

The

sprockets

21 and 22 are pivotally supported by corresponding

motors

23 and 24, respectively, and rotate in the same circumferential direction. Both

motors

23 and 24 rotate intermittently by one pitch. The pitch is the same as the design arrangement interval of the pocket T1. That is, the pocket T1 stops at a common stop position. Then, the taping unit 2 basically matches one of the stop positions of the pocket T1 with the accommodation position P1 on the transport path, and receives the electronic component D from which the holding means 11 is detached in the pocket T1 of the carrier tape T. Further, the taping unit 2 in principle matches the other stop position of the pocket T1 with the accommodation inspection position P3 on the conveyance path, and inspects the accommodation mode of the electronic component D inside the pocket T1.

The correction unit 25 includes a Z-axis rotation drive unit 251 that rotates the unit main body 29 of the taping unit 2 around the Z axis, an X-axis movement drive unit 252 that moves the unit main body 29 in the X-axis direction orthogonal to the Z-axis, A Y-axis movement drive unit 253 that moves the unit main body 29 in the Y-axis direction orthogonal to the Z-axis and the X-axis is provided. The unit main body 29 of the taping unit 2 is a support for the carrier tape T, and is a case for supporting the

sprockets

21 and 22 and the

sprockets

21 and 22 pivotally. The Z axis passes through the storage position P1 and is orthogonal to the opening surface of the pocket T1. The X-axis passes through the storage position P1, is parallel to the opening surface of the pocket T1, and is preferably along the longitudinal direction of the carrier tape T. The Y-axis passes through the storage position P1, is parallel to the opening surface of the pocket T1, and is preferably along the width direction of the carrier tape T.

The Z-axis rotation drive unit 251 is a motor 251 a having a rotation shaft 251 b and is disposed on the bottom surface of the unit main body 29. The rotation shaft 251 b of the Z-axis rotation drive unit 251 is coaxial with the Z-axis and is fixed to the bottom surface of the unit main body 29. The X-axis movement drive unit 252 includes a slider 252a on which the motor 251a of the Z-axis rotation drive unit 251 is mounted, a screw shaft 252b to which the slider 252a is fitted, and a motor 252c that rotates a screw shaft 252b extending in the X-axis direction. Consists of. The Y-axis movement drive unit 253 is configured by a slider 253a on which the X-axis movement drive unit 252 is mounted, a screw shaft 253b fitted to the slider 253a, and a motor 253c that rotates the screw shaft 253b extending in the Y-axis direction. The

The correction unit 25 moves the carrier tape T in advance so that the pocket T1 is at the reference position and orientation at the storage position P1. Therefore, the taping unit 2 has a displacement confirmation position P2 before the accommodation position P1. The accommodation position P1 is located downstream in the running direction from the deviation confirmation position P2 in the running direction of the carrier tape T, and the deviation confirmation position P2 is located upstream in the running direction from the accommodation position P1. It is desirable that the displacement confirmation position P2 and the accommodation position P1 are arranged next to each other. The accommodation inspection position P3 is located further downstream in the traveling direction than the accommodation position P1.

The displacement confirmation position P2 is provided with a second imaging unit 27 for confirming the position of the pocket T1. Further, the taping unit 2 includes a pocket shift detection unit 28 that detects a shift in the position and orientation of the pocket T1 based on information obtained by the second imaging unit 27. The correction unit 25 moves the unit main body 29 so as to correct the position and orientation shift of the pocket T1 detected by the pocket shift detection unit 28. The second imaging unit 27 is a camera, for example, and is arranged in the vicinity of the deviation confirmation position P2 so that the deviation confirmation position P2 is within the imaging area. The pocket misalignment detection unit 28 is an image analysis device including a so-called computer. The pocket shift detection unit 28 analyzes the image captured by the second image capturing unit 27 and calculates a shift amount with respect to the reference position and the reference direction of the pocket T1.

FIG. 3 is a schematic diagram showing the calculation of the amount of deviation of the pocket T1 by the pocket deviation detector 28. As shown in FIG. As shown in FIG. 3, the pocket shift detection unit 28 stores in advance origin information 281 with one point in the image as the origin. The origin information 281 indicates the reference position of the pocket T1, and is, for example, coordinate information of one corner when the pocket T1 exists at the reference position. The pocket shift detection unit 28 stores a reference direction vector 282 in advance. The reference direction vector 282 indicates the reference direction of the pocket T1, and is, for example, the extending direction of one side when the pocket T1 is along the reference direction. The coordinate system of the image is preferably along the longitudinal direction and the width direction of the carrier tape T, and can be adjusted by adjusting the installation position and orientation of the second imaging unit 27 or by rotating the image. Good.

The pocket shift detection unit 28 detects one corner of the pocket T1 from the image captured by the second imaging unit 27, and calculates a position vector 283 from the origin to the corner. The position vector 283 is the shift amounts ΔX and ΔY indicating the shift from the reference position of the pocket T1. Further, the pocket shift detection unit 28 detects one side of the pocket T1 from the image captured by the second imaging unit 27, and calculates a direction vector 284 in which the one side extends. Then, the pocket shift detection unit 28 calculates the inner product of the reference direction vector 282 and the direction vector 284, divides the result by multiplying the scalars of both direction vectors, and calculates the inverse cosine of the division result. This inverse cosine calculation result Δθ is a shift amount indicating a shift of the pocket T1 from the reference direction.

The correction unit 25 moves and rotates the carrier tape T so as to eliminate the shift amount with respect to the reference position and the reference direction detected by the pocket shift detection unit 28. That is, the Z-axis rotation driving unit 251 rotates in the opposite direction to the deviation by the same angle Δθ as the deviation from the reference direction obtained by the pocket deviation detecting unit 28 from the direction vector 284. The X-axis movement drive unit 252 moves in the opposite direction of the position vector by the same amount as the scalar amount ΔX in the X-axis direction of the position vector 283 obtained by the pocket deviation detection unit 28. The Y-axis movement drive unit 253 moves in the opposite direction of the position vector by the same amount as the scalar amount ΔY in the Y-axis direction of the position vector 283 obtained by the pocket deviation detection unit 28. The correction of the displacement of the pocket T1 by the correcting unit 25 is performed after the displacement of the pocket T1 is confirmed at the displacement confirmation position P2 until the electronic component D is detached from the pocket T1 moved to the accommodation position P1. Any timing is acceptable.

FIGS. 4 to 7 are schematic diagrams showing deviation correction of the taping unit 2. 4 to 7, the travel of the carrier tape T for one pitch, the correction of the deviation amount ΔX in the X-axis direction, the correction of the deviation amount ΔY in the Y-axis direction, and the deviation amount Δθ around the Z-axis. Although the correction is performed by shifting the time in order, the correction is not limited to this, and all corrections are achieved before the electronic component D is detached from the pocket T1 after moving from the misalignment confirmation position P2 to the receiving position P1. It may be all at the same time.

As shown in FIG. 4A, the position and orientation of the pockets T1 on the carrier tape T can be shifted to a specific degree, not uniform, due to manufacturing errors such as embossing. . Here, it is assumed that the pocket T1, which is located two tapes ahead in the tape running direction from the storage position P1, is stopped at the deviation confirmation position P2 through the intermittent running of the carrier tape T by the

sprockets

21 and 22. At this time, as shown in FIG. 4A, the second imaging unit 27 images the pocket T1 at the displacement confirmation position P2, and the pocket displacement detection unit 28 detects the positional displacement amount ΔX of the pocket T1 in the X-axis direction. And a positional deviation amount ΔY in the Y-axis direction and an orientation deviation amount Δθ around the Z-axis are calculated.

When the positional deviation and the orientation deviation are calculated, as shown in FIG. 4B, the

sprockets

21 and 22 are rotated by one pitch, and the carrier tape T is caused to travel by the arrangement interval Ed of the pocket T1. As a result, the pocket T1 in which the deviation has been confirmed reaches the accommodation position P1.

Next, as shown in the transition of FIGS. 5 to 7, the correction unit 25 performs the process until the electronic component D is detached from the pocket T 1 moved at an equal interval Ed from the deviation confirmation position P 2 to the accommodation position P 1. Correct in between. First, the position shift amount ΔX in the X-axis direction, the position shift amount ΔY in the Y-axis direction, and the direction shift amount Δθ are input to the correction unit 25 from the pocket shift detection unit 28.

Then, as shown in the transition from (b) to (c) in FIG. 5, the Y-axis movement drive unit 253 moves the unit main body 29 by a distance corresponding to the positional deviation amount ΔY. Next, as shown in the transition from (c) to (d) in FIG. 6, the X-axis movement driving unit 252 moves the unit main body 29 by a distance corresponding to the positional deviation amount ΔX. Then, as shown in the transition from (d) to (e) in FIG. 7, the Z-axis rotation driving unit 251 rotates the unit main body 29 about the accommodation position P1 by an angle corresponding to the amount of deviation Δθ. Thereby, when the pocket T1 reaches the storage position and the electronic component D is detached toward the pocket T1, the pocket T1 is aligned with the reference position and orientation.

Note that the displacement confirmation position P2 does not have to be the previous position as long as it is upstream in the traveling direction from the accommodation position P1. However, if the displacement confirmation position P2 and the accommodation position P1 are adjacent to each other, it is possible to eliminate the influence of the positional deviation or the orientation deviation of the pocket T1 with respect to the accommodation position P1 due to distortion or bending of the carrier tape T.

Further, it is only necessary that the pocket T1 can be two-dimensionally moved in parallel with the opening surface, and the X axis and the Y axis need only be parallel to the opening surface of the pocket T1 and orthogonal to each other. However, one movement direction of the unit main body 29 and one axis in the coordinate system of the pocket deviation detection unit 28 coincide with the longitudinal direction of the carrier tape T, and the other movement direction of the unit main body 29 and the coordinates of the pocket deviation detection unit 28 are matched. If the other axis in the system matches the width direction of the carrier tape T, the calculation for the movement amount may be simplified.

In this way, the taping unit 2 has the displacement confirmation position P2 at a position different from the accommodation position P1, and the carrier tape T is run by the

sprockets

21 and 22, whereby each pocket T1 is accommodated via the displacement confirmation position P2. It was made to position in position P1. At the displacement confirmation position P2, the pocket T1 is imaged by the second imaging unit 27, and the image captured by the second imaging unit 27 is analyzed to detect the displacement of the pocket T with respect to the reference position and the reference orientation. Then, before the pocket T1 in which the displacement is detected by the correction unit 25 including the X-axis movement driving unit 252, the Y-axis movement driving unit 253, and the Z-axis rotation driving unit 251, the electronic component D is accommodated at the accommodation position P1. The carrier tape T was moved and rotated in a plane so as to eliminate the displacement of the pocket T1.

Thereby, even if the pocket T1 is shifted in the width direction of the carrier tape T due to a manufacturing error, shifted in the longitudinal direction, or changed in direction, the reference position and the reference direction are maintained at the storage position P1, and the electronic component D Can be accommodated with high accuracy. That is, it becomes difficult to make a contact with a wall defining the pocket T of the electronic component D or an insertion error.

By using the observation of the pocket T1 at the misalignment confirmation position P2, it is possible to detect abnormalities in the shape of the pocket T1 such as improper dimensions and no bottom hole, and contamination abnormalities such as dust contamination in the pocket T1. When the shape abnormality or the contamination abnormality occurs, the taping unit 2 or the entire electronic component transport device including the taping unit 2 may be stopped. That is, the dimension of the pocket T1 and the hole on the bottom surface are measured from the image captured by the second imaging unit 27. Further, a dust image inside the pocket T1 is detected from the image captured by the second imaging unit 27. Then, the dimension or the hole is compared with a specified value, and if there is a deviation from the specified value or more than a predetermined value, the shape is abnormal. Further, when a dust image is detected, a contamination abnormality is assumed. Signals indicating the shape abnormality and the contamination abnormality are output to the control device, and the control device stops the taping unit 2 and the electronic component transport device.

In this embodiment, the correction unit 25 moves the carrier tape T in advance so that the pocket T1 is at the reference position and orientation at the storage position P1. Here, “preliminary” refers to the time before the electronic component D starts to be stored in the pocket T1 by the detachment process of the holding means 11. Therefore, the accommodation position P1 and the deviation confirmation position P2 may be matched. That is, the location where the transport path of the electronic component D and the carrier tape T intersect is the accommodation position P1 and the displacement confirmation position P2, and the second imaging unit 27 is disposed toward the intersection.

In this case, first, movement of the pocket T1 to the accommodation position P1 by movement of the carrier tape T by the

sprockets

21 and 22, and second, imaging of the pocket T1 by the second imaging unit 27 at the accommodation position P1. Third, the positional deviation and orientation deviation are calculated by the pocket deviation detecting unit 28, and the fourth is corrected by the correcting unit 25. Finally, the holding means 11 is moved to the pocket T1 by the removal of the electronic component D. The electronic component D is stored.

(Electronic component conveyor)
FIG. 8 shows a configuration of an electronic component transport apparatus including the taping unit 2. As shown in FIG. 8, the electronic component transport apparatus 10 arranges a transport path for the electronic components D on the gantry, and aligns and transports a plurality of electronic components D along the transport path. Process part D. The gantry is a rectangular parallelepiped pedestal and accommodates control devices such as a computer and a controller, a power source, cables, a compressor, and an air pipe. The pocket misalignment detection unit 28 of the taping unit 2 may be a control device built in the gantry, or the taping unit 2 may be provided with a control device separately. Control of the correction unit 25 of the taping unit 2 may be performed by a control device built in the gantry, or the taping unit 2 may be provided with a separate control device.

The conveyance path of the electronic component D is formed by the conveyance table 12 on the gantry. The holding means 11 is attached to the outer periphery of the transport table 12. The rotation trajectory of the holding unit 11 is a conveyance path, and the conveyance table 12 and the holding unit 11 are conveyance units that convey the electronic component D. The conveyance table 12 has a shape such as a disk or a star that expands radially around one point. The transport table 12 rotates intermittently by a predetermined angle in the circumferential direction. The power source of the transport table 12 is a direct drive motor 13. The transfer table 12 is installed on the gantry via the direct drive motor 13.

A plurality of holding means 11 are attached to the outer periphery of the horizontal plate of the transfer table 12 at equal circumferential positions and at the same distance from the center of the horizontal plate. When the transfer table 12 has a star shape, it is attached to the tip of the arm. The holding means 11 is, for example, a suction nozzle, and is installed on a horizontal plate with a hollow inside, one end opened, and the open end facing downward. The inside of the holding means 11 communicates with a pneumatic circuit of a negative pressure generator such as a vacuum pump or an ejector. By generating a negative pressure in the pneumatic circuit, the holding means 11 adsorbs the electronic component D at the open end, and releases the electronic component D by vacuum break or release to the atmosphere.

The direct drive motor 13 is controlled to rotate intermittently by one pitch. The pitch is adjusted to be equal to the arrangement interval of the holding means 11. That is, the holding means 11 follows a common movement locus with the intermittent rotation of the transport table 12 and stops at a common stop position. The electronic component D can be accommodated in the carrier tape T by overlapping the accommodation position P1 of the taping unit 2 at this stop position.

In addition, other processing units can be arranged in addition to the stop position where the taping unit 2 is provided. Examples of other processing units include a supply unit 15 that supplies the electronic component D to the transport path, an electrical test unit 16, an appearance inspection unit 17, a classification unit 18, a position correction unit 19, and the like. The position correction unit 19 is provided immediately before the taping unit 2 and aligns the position and orientation of the electronic component D with the reference position and reference orientation.

The position correction unit 19 includes a third imaging unit 191 and an XYθ stage 192 at two adjacent stop positions, and the positional deviation and orientation deviation of the electronic component D confirmed by the third imaging unit 191 are detected in the XYθ stage. 192 to correct. The third imaging unit 191 is a camera, for example, and images the electronic component D from directly below the stop position of the holding unit 11. The XYθ stage 192 moves in the X-axis and Y-axis directions and rotates around the Z-axis.

At each stop position, an advancing / retreating drive device 14 for advancing and retracting the holding means 11 toward the processing unit is fixed. The forward / backward drive device 14 is also fixed immediately above the storage position P1. The advance / retreat drive device 14 has a rod extending toward the head of the holding means 11. The advancing / retracting drive device 14 applies axial thrust to the rod by a rotary motor and a cam mechanism. The advancing / retracting drive device 14 generates a thrust by a rotary motor, converts the thrust into a linear thrust along the axis of the holding means 11 by a cam mechanism and a rod, and pushes the holding means 11 by a rod. The electronic component D held by the holding means 11 enters the pocket T1 of the taping unit 2 by the lowering of the holding means 11, or is placed on each stage of the processing unit, detached from the pocket T1, or processing corresponding to the processing unit. Receive.

FIG. 9 shows a first arrangement method of the taping unit 2 with respect to such an electronic component conveying apparatus 10. As shown in FIG. 9, the taping unit 2 is arranged so that the extending direction of the carrier tape T is directed to the center of the transport table 12 and the carrier tape T travels outward of the transport table 12. The accommodation position P 1 is positioned immediately below the outer edge of the transport table 12 in correspondence with the holding means 11 attached to the outer edge of the transport table 12. For this reason, the deviation confirmation position P2 sinks under the transport table 12. Further, the displacement confirmation position P2 is hidden by the holding means 11 from the direction in which the carrier tape T extends.

Therefore, the second imaging unit 27 is installed obliquely so as not to collide with the transport table 12 so that the displacement confirmation position P2 is observed. However, depending on the size of the transfer table 12, the second imaging unit 27 may not be installed at a position where the shift confirmation position P2 can be observed without colliding with the transfer table 12. In this case, the transfer table 12 has a disk shape, and a through hole 121 is provided directly above the storage position P1. The second imaging unit 27 is fixed above the transport table 12 toward the through hole 121. Accordingly, the second imaging unit 27 can observe the displacement confirmation position P 2 through the through hole 121 regardless of the size of the transport table 12.

FIG. 10 is a schematic diagram showing a second arrangement method of the taping unit 2 with respect to the electronic component conveying apparatus 10. As shown in FIG. 10, the taping unit 2 is arranged such that the radial direction of the transport table 12 passing through the storage position P 1 and the extending direction of the carrier tape T are orthogonal or oblique. In this arrangement method, the displacement confirmation position P2 is located on the outer peripheral side of the transfer table 12 or outside the first arrangement method. Therefore, the second imaging unit 27 can observe the deviation confirmation position P2 while being arranged outside the conveyance table 12 in the radial direction. According to the second arrangement method, the weight of the transport table 12 is lighter than that of the first arrangement method, and the output of the direct drive motor 13 can be reduced.

FIG. 11 is a side view showing a third arrangement method of the taping unit 2 with respect to the electronic component conveying apparatus 10. The taping unit 2 is arranged so that the extending direction of the carrier tape T is directed toward the center of the transport table 12 and the carrier tape T travels outward of the transport table 12. The holding means 11 is attached to the transport table 12 so as to be positioned further outside the outer edge of the transport table 12. That is, the outer shape of the holding means 11 once extends radially outward from the outer periphery of the transfer table 12 and then bends directly downward.

Specifically, a rail 122 extending downward is provided on the outer edge of the transfer table 12. The holding means 11 has a slider 111 that slides on the rail 122. An extension rod 112 extends from the slider 111 toward the outside of the transfer table 12. A suction nozzle 113 extending downward is fixed to the tip of the extension rod 112. The advancing / retracting drive device 14 has a rod 141 extending toward the slider 111 and acts to push the slider 111 in. Although the slider 111 to which thrust is applied from the advancing / retreating drive device 14 and the suction nozzle 113 that moves up and down are separated by way of the extension rod 112, the rail 122 guides the sliding direction, so that an unbalanced load is generated. This prevents the holding means 11 from changing its orientation.

In this third arrangement method, the taping unit 2 can be arranged with respect to the electronic component conveying apparatus 10 having the holding means 11 so that the accommodation position P1 is located outside the conveyance table 12. For this reason, the deviation confirmation position P2 is closer to the center of the conveyance table 12 than the holding means 11, but can be positioned on the outer peripheral side or outside of the conveyance table 12 as compared with the first arrangement method. Therefore, the second imaging unit 27 can observe the deviation confirmation position P2 while being arranged outside the conveyance table 12 in the radial direction. In the third arrangement method, the transport table 12 can be reduced in weight compared to the first arrangement method. Therefore, the output of the direct drive motor 13 can be reduced as compared with the first arrangement method. Further, in the third arrangement method, the range of the taping unit 2 that occupies the periphery of the transport table 12 can be made narrower than in the second arrangement method. Therefore, as compared with the second arrangement method, a larger number of processing units can be arranged on the conveyance table 12, and the electronic component conveyance apparatus 10 can be multifunctional.

In the second arrangement method and the third arrangement method, when the deviation confirmation position P2 is not exposed to the outside of the transport table 12, the second imaging unit 27 is provided on the side of the taping unit 2, and the deviation confirmation position. P2 is imaged from an oblique direction. In this case, the pocket deviation detection unit 28 may calculate the deviation amount from the reference position and orientation after converting the obliquely projected image into an orthographic projection using the angle of the second imaging unit 27 as a parameter.

Further, in the first to third arrangement methods, by making the deviation confirmation position P2 coincide with the accommodation position P1, the arrangement of the second imaging unit 27 and the photographing of the pocket T1 are further facilitated. .

(Second embodiment)

As illustrated in FIG. 12, the electronic component transport apparatus 10 according to the second embodiment includes the third imaging unit 191 in the upstream of the transport path with respect to the taping unit 2, but corrects the position and orientation of the electronic component D. There is no XYθ stage 192. Instead of the XYθ stage 192, another processing unit may be arranged to be multifunctional, or the installation location of the XYθ stage 192 may be a location where the processing unit is not installed.

As shown in FIG. 13, the taping unit 2 according to the second embodiment analyzes the image of the third imaging unit 191 in addition to the pocket shift detection unit 28 and electronic components from the reference position and orientation. A component position detector 28a for detecting the position and orientation of D is provided. The component position detection unit 28a may be provided in a control device in a gantry that performs overall control of the entire electronic component transport apparatus 10, or in the case where the taping unit 2 has a control device independently, You may make it prepare.

The component position detection unit 28a has the same function and operation as the pocket shift detection unit 28 according to the first embodiment except that the detection target is the electronic component D. That is, as illustrated in FIG. 14, the component position detection unit 28 a stores the origin information 281 in advance, analyzes the image of the electronic component D captured by the third imaging unit 191, and determines the reference position of the electronic component D. A position vector 285 indicating the deviation is calculated. The component position detection unit 28a stores a reference direction vector 282 in advance, analyzes the image of the electronic component D captured by the third imaging unit 191 and generates a direction vector 286 indicating a deviation from the reference direction of the electronic component D. calculate. The reference position and orientation of the pocket T1 and the reference position and orientation of the electronic component D are set in advance so as to match.

The position vector 285 and the direction vector 286 related to the electronic component D calculated by the component position detection unit 28a are input to the pocket shift detection unit 28 that calculates a shift in the position and orientation of the pocket T1. As shown in FIG. 15, the pocket shift detection unit 28 holds a position vector 285 related to the electronic component D as origin information 281 and holds a direction vector 286 related to the electronic component D as a reference direction vector 282. The pocket shift detection unit 28 calculates the position vector 283 of the pocket D based on the origin information 281 indicated by the position vector 285, and the angle Δθ formed by the reference vector 282 indicated by the direction vector 286 and the direction vector 284 of the pocket D. Is calculated.

The position vector 283 indicates the positional deviation amount ΔX in the X-axis direction and the positional deviation amount ΔY in the Y-axis direction of the pocket T1 with respect to the electronic component D. The angle formed by the direction vector 286 of the electronic component D and the direction vector 284 of the pocket T1 indicates the amount of deviation Δθ of the pocket T1 with respect to the electronic component D. As shown in FIG. 16, the position shift amount ΔX, the position shift amount ΔY, and the direction shift amount Δθ are input to the correction unit 25, and when the pocket T1 reaches the storage position P1, the position shift amount ΔX and the position shift amount. The unit main body 29 is moved and rotated so as to eliminate ΔY and the direction deviation amount Δθ.

That is, in the first embodiment, in order to match the positions and orientations of the electronic component D and the pocket T1, both the electronic component D and the pocket T1 are matched to the absolute position and orientation of the reference position and orientation. Specifically, the position and orientation of the electronic component D are corrected by the position correction unit 19 provided in the upstream of the transport path with respect to the taping unit 2, and the position and orientation of the pocket T 1 are referenced by the correction unit 25 of the taping unit 2. Adjusted to position and reference orientation. On the other hand, in the second embodiment, the displacement of the position and orientation of the electronic component and the displacement of the position and orientation of the pocket T1 are synthesized, and the position and orientation of the pocket T1 are matched with the position and orientation of the electronic component D. The pocket T1 is moved and rotated in consideration of the position and orientation of the electronic component D.

This makes it possible to accurately store the electronic component D even if a design position shift or orientation shift occurs in the pocket T1, and eliminates the XYθ stage 192 for correcting the electronic component D. 2 or the manufacturing cost of the electronic component transport apparatus 10 can be reduced, and another processing unit can be arranged instead of the XYθ stage 192, so that the electronic component transport apparatus 10 can be multi-functional. .

(Third embodiment)
The electronic component transport apparatus 10 according to the third embodiment ranks the degree of non-defective products of the electronic components D based on the processing results for determining the quality of the electronic components such as the electrical test unit 16 and the appearance inspection unit 17. Electronic components D having the same rank are accommodated in the same carrier tape T. As shown in FIG. 17, the electronic component transport apparatus 10 includes N units of taping

units

2a, 2b,... The taping units of the N machine may be continuously arranged in the transport path, or other types of processing units are interposed, or there are places where the processing units are not arranged between the taping units 2a, b,. It may be discontinuous, such as.

The electronic component transport device 10 associates a rank with each electronic component D, and transports it to a position directly above the

taping units

2a, 2b,. For example, it is assumed that the taping unit 2a accommodates the uppermost electronic component D in the carrier tape T, and the taping unit 2b accommodates the upper electronic component D having a lower rank than the uppermost rank in the carrier tape T. Further, it is assumed that the taping unit 2a is positioned upstream of the transport path with respect to the taping unit 2b.

As shown in (a) of FIG. 18, the electronic component D _S superlative S is positioned in the accommodation position P1 of the taping unit 2a, the electronic component transporting apparatus 10 includes a holding means that holds the electronic component D _S It controls to disengage the electronic component D _S with respect to 11. Specifically, after the holding means 11 is lowered with respect to the pocket T1, the suction force is lost by breaking the vacuum or the atmosphere.

On the other hand, as shown in (b) of FIG. 18, the electronic component D _A senior A is located at the accommodated position P1 of the taping unit 2a, the electronic component transporting apparatus 10, its electronic part D with respect to the holding means 11 Keep _A held. Specifically, the holding means 11 is not controlled for loss of adsorption power such as vacuum break or atmospheric break. Thus, the electronic components D _A senior A simply passes above the taping unit 2a. Then, as shown in (b) of FIG. 18, the electronic component D _A senior A is further intermittent movement of the conveyor path and positioned to accommodate the position P1 of the taping unit 2b, an electronic component transporting apparatus 10, the electronic component controls to disengage the electronic component D _a to the holding means 11 holding the D _a. More specifically, the holding means 11 is broken in vacuum or in the atmosphere to lose the adsorption power.

In this electronic component conveying apparatus 10, each

taping unit

2a, 2b,... Has a displacement confirmation position P2 in the front stage in the traveling direction from the accommodation position P1, and includes a first imaging unit 26, a pocket displacement detection unit 28, A component position detection unit 28a and a correction unit 25 are provided, and the displacement of the position and orientation of the pocket T1 moving to the storage position P1 can be corrected.

Each of the

taping units

2a, 2b,... Moves the unit main body 29 so as to correct the position and orientation of the pocket T1 until the electronic component D to be accommodated is located at the accommodation position P1 and released. And rotate it.

That is, when the electronic component D is imaged by the third imaging unit 191 and the position vector 285 indicating the deviation from the reference position and the direction vector 286 indicating the deviation from the reference direction are calculated, As shown in FIGS. 19A and 19B, the control device inputs the position vector 285 and the direction vector 286 to the

taping unit

2a or 2b corresponding to the rank of the electronic component D having the deviation. The

taping unit

2a or 2b, to which the position vector 285 and the direction vector 286 are input, uses these as the origin information 281 and the reference direction vector 282. Then, the displacement of the position and orientation of the pocket T1 is corrected in accordance with the electronic component D that is removed at the accommodation position P1.

The electronic component transport apparatus 10 includes a position correction unit 19 having an XYθ stage 192. Each

taping unit

2a, 2b,... Has a first imaging unit 26, a pocket shift detection unit 28, and a correction unit 25. It is also possible to provide both the electronic component D and the pocket T1 at the absolute position and orientation of the reference position and orientation.

Thus, when the electronic component D is accommodated in the carrier tape T for each rank, the taping unit 2 that holds the carrier tape T that accommodates the electronic component D takes into account the displacement of the position and orientation of the electronic component D. The unit main body 29 may be moved and rotated so that the pocket T1 is aligned with the position and orientation of the electronic component D.

(Fourth embodiment)
(Constitution)
FIG. 20 is a block diagram illustrating a control configuration of the correction unit 25 according to the fourth embodiment. As shown in FIG. 20, the taping unit 2 includes a determination unit 41 and a drive control unit 42. The determination unit 41 and the drive control unit 42 are configured by a so-called computer, and include a CPU, a memory, and a driver interface that drives the correction unit 25. The computer may also be used as a control device provided in the electronic component transport apparatus 10. That is, it functions as the determination unit 41 and the drive control unit 42 to control the taping unit 2, to control the transport table 12, to control the vacuum supply to the holding means 11, and to control the other units 15 to 19. It may be.

If it is assumed that there is no correction of the pocket T1, the determination unit 41 detects the proximity between the inner wall that defines the pocket T1 and the electronic component D, and determines whether the correction unit 25 needs to correct according to the proximity. To do. The determination unit 41 stores a threshold value Xt of the positional deviation amount ΔX of the pocket T1 in the X-axis direction and a threshold value Yt of the positional deviation amount ΔY of the pocket T1 in the Y-axis direction. The determination unit 41 compares the positional deviation amount ΔX detected by the pocket deviation detection unit 28 with the threshold value Xt, and compares the positional deviation amount ΔY with the threshold value Yt.

The drive control unit 42 drives the correction unit 25 according to the necessity of correction. The necessity of correction is a determination result of the determination unit 41, and correction is required when one or both of the positional deviation amount ΔX and the positional deviation amount ΔY exceed the threshold values Xt and Yt. On the other hand, the drive control unit 42 makes correction unnecessary when both the positional deviation amount ΔX and the positional deviation amount ΔY are below the threshold values Xt and Yt. The drive control unit 42 outputs a drive signal to the correction unit 25 when correction is necessary. For example, the positional deviation amount ΔX and the positional deviation amount ΔY calculated by the pocket deviation detection unit 28 suffice.

The correction unit 25 corrects the positional deviation of the electronic component D in response to the drive signal. The drive control unit 42 does not output a drive signal to the correction unit 25 when correction is not necessary. The correction unit 25 does not drive because the drive signal is not input, and does not correct the positional deviation of the electronic component D. That is, the correction unit 25 corrects the pocket T1 if the distance between the inner wall that defines the pocket T1 and the electronic component D is within a certain range, and defers the correction of the pocket T1 if the proximity is greater than a certain value.

FIG. 21 is a flowchart showing the operations of the determination unit 41 and the drive control unit 42. As shown in FIG. 21, when the positional deviation amount ΔX and the positional deviation amount ΔY are calculated (step S01), the determination unit 41 compares the positional deviation amount ΔX and the threshold value Xt (step S02). The determination unit 41 compares the positional deviation amount ΔY with the threshold value Yt (step S03).

As a result of the comparison, if the positional deviation amount ΔX is less than the threshold value Xt (step S02, Yes) and the positional deviation amount ΔY is less than the threshold value Yt (step S03, Yes), the drive control unit 42 sends a correction to the correction unit 25. The process is terminated without inputting the drive signal, and the holding unit 11 causes the electronic component D to leave the pocket 1 (step S07).

On the other hand, as a result of the comparison, if the positional deviation amount ΔX exceeds the threshold value Xt (step S02, Yes), or if the positional deviation amount ΔY exceeds the threshold value Yt (step S03, Yes), the drive control unit 42 Then, a drive signal is input to the correction unit 25 (step S04). The correction unit 25 receives the drive signal and drives so as to eliminate the positional deviation amount ΔX, the positional deviation amount ΔY, and the orientation deviation amount Δθ included in the driving signal (step S05). Then, the holding unit 11 waits for the correction of the pocket T1 to end (step S06, Yes), and causes the electronic component D to leave the pocket 1 (step S07).

(Function)
FIG. 22 is a schematic diagram showing the threshold value Xt and the threshold value Yt. As shown in FIG. 22, when the electronic component D is close to the wall of the pocket T1 within the danger distance dd, there is an increased risk of the electronic component D colliding with the pocket T1 due to a machine operation error or the like. When the center of the electronic component D coincides with the center of the pocket T1, the distance from the edge of the electronic component D to the wall of the pocket T1 is defined as dr. The threshold value Xt and the threshold value Yt are Xt = dr−dd and Yt = dr−dd. The threshold value Xt and the threshold value Yt are adjusted according to the dimensions of the electronic component D, the dimension of the pocket T1, and the danger distance d.

According to the threshold value Xt and the threshold value Yt, if the electronic component D exceeds the threshold value Xt and is displaced in the X-axis direction, it indicates that the electronic component D is approaching the dangerous distance dd to the wall of the pocket T1. . Further, if the position of the electronic component D is shifted in the Y-axis direction above the threshold value Yt, it indicates that the electronic component D is approaching the dangerous distance d with respect to the wall of the pocket T1. Therefore, the taping unit 1 corrects the pocket T1 so that the electronic component D does not approach the wall of the pocket T1 within the danger distance dd.

On the other hand, when the positional deviation of the electronic component D in the X-axis direction is below the threshold value Xt, it indicates that the electronic component D is separated from the wall of the pocket T1 by the danger distance dd or more. Further, if the positional deviation of the electronic component D in the Y-axis direction is less than the threshold value Yt, it indicates that the electronic component D is separated from the danger distance d by the wall of the pocket T1. When the electronic component D is separated from the wall of the pocket T1 by a danger distance dd or more, the risk of the electronic component D colliding with the pocket T1 is small even if the dimensional tolerance between the electronic component D and the pocket T1 is taken into consideration. Therefore, the taping unit 1 defers correction of the pocket T1.

As a result, as shown in FIG. 23, the correction by the correction unit 25 is executed only for the relationship between a part of the electronic components D whose positional deviation exceeds the threshold and the pocket T1, and the subsequent electronic components D are stored. It will move to processing. On the other hand, regarding the relationship between the other electronic component D whose position deviation is below the threshold and the pocket T1, the correction by the correction unit 25 is skipped, and the process immediately moves to the process of storing the electronic component D.

Here, in practice, an electronic component D having a length of 0.65 ± 0.04 mm and a width of 0.50 ± 0.04 mm is used, and a length of 0.81 ± 0.03 mm and a width of 0.63 ± 0 is used. It was stored in a pocket T1 of 0.03 mm. The total minimum clearance vacant on both sides of the electronic component D and the pocket T1 is 0.09 mm in the length direction and 0.06 mm in the width direction. Therefore, the threshold Xt and threshold Yt were set to ± 0.02 mm, and a test for accommodating 500 electronic components D in the pocket T1 was performed. The results are shown in the table of FIG. As shown in FIG. 24, the correction by the correction unit 25 was performed 47 times in total in the operation of accommodating the electronic component D and the pocket T1 500 times.

As shown in the table of FIG. 24, in the actual electronic component transport apparatus 10, when the pocket T1 is not corrected, the accommodating operation of the electronic component D and the pocket T1 requires an average tact time of 121 msec. When the pocket T correction is included, the accommodating operation of the electronic component D and the pocket T1 requires an average tact time of 121 msec. Therefore, compared with the case where correction is executed in relation to all the electronic components D and the pockets T1, in this embodiment in which the correction operation is stopped a total of 47 times, the housing operation of the electronic components D and the pockets T1 is 123 msec on average. Shortened to tact time.

(effect)
As described above, in the fourth embodiment, the correction unit 25 is configured to eliminate the displacement of the pocket T1 only when the inner wall of the pocket T1 and the electronic component D approach within the danger distance dd. As a result, even in the positional relationship between the pocket T1 and the electronic component D with a low risk of collision, it is possible to avoid a situation where correction for avoiding the risk of collision is performed. Therefore, the correction of the pocket T1 is limited to some situations, and the correction of the pocket T1 is not performed uniformly, and the average tact time of the storing operation of the electronic component D in the pocket T1 is improved. That is, the conveyance of the electronic component D is speeded up, and the production efficiency of the electronic component D is improved.

(Modification 1)
In contrast to the fourth embodiment, not only the position of the pocket T1 but also the orientation of the pocket T1 may be considered, and the proximity between the inner wall of the pocket T1 and the electronic component D may be accurately calculated. As shown in FIG. 25, the determination unit 41 is located at a position closest to the pocket T1 of the electronic component D, that is, between the four corners of the electronic component D and the inner wall of the pocket T1 in the vicinity of the electronic component D and the inner wall of the pocket T1. The distances dk1 to dk4 are calculated.

Specifically, the determination unit 41 calculates the position of each side of the pocket T1 from the position vector 283, the direction vector 284, and the dimensions of the pocket T1 detected by the pocket deviation detection unit 28. Further, the determination unit 41 stores the position coordinates of the four corners of the electronic component D whose position and orientation are corrected in advance, or the position vector calculated by the component position detection unit 28a when the position and orientation of the electronic component D are not corrected. The positions of the four corners of the electronic component D are calculated from 285, the direction vector 286, and the dimensions of the electronic component D.

Then, the determination unit 41 calculates the distance between each side of the pocket T1 and the four corners of the electronic component D, and compares each distance dk1 to dk4 for a value equal to or less than the threshold Th. If there is even one value equal to or less than the threshold Th, the drive control unit 42 drives the correction unit 25 to correct the pocket T1.

In the fourth embodiment, the correction unit 25 cancels the displacement of the pocket T1 only when the displacement of the pocket T1 detected by the pocket displacement detection unit 28 is equal to or greater than a predetermined value indicated by the threshold value Xt and the threshold value Yt. did. Such driving of the correction unit 25 is performed by a determination unit 41 that determines the proximity between the inner wall of the pocket T1 and the electronic component D, and a drive control that controls driving or non-drive of deviation correction by the correction unit 25 according to the determination unit 41. This is realized by the unit 42.

Thereby, the proximity between the inner wall of the pocket T1 and the electronic component D can be determined only by the comparison process, and the calculation can be avoided. Therefore, the load on the computer is not applied, the transportation of the electronic component D is accelerated, and the electronic component D The production efficiency is improved.

On the other hand, according to the modified example 1, since the closeness between the inner wall of the pocket T1 and the electronic component D is accurately calculated, the collision between the pocket T1 and the electronic component D can be avoided with a very high probability, and the reliability of the electronic component D can be avoided. Improvement in yield and yield can be realized.

(Modification 2)
Further, with respect to the fourth embodiment and the first modification, the consideration for the orientation of the pocket T1 may be achieved by comparing the orientation deviation amount Δθ and the threshold value θt, as shown in FIG. That is, the determination unit 41 stores in advance a threshold value Xt for the positional deviation amount ΔX, a threshold value Yt for the positional deviation amount ΔY, and a threshold value θt for the orientation deviation amount Δθ, and the positional deviation amount ΔX, the threshold value Xt, and the positional deviation amount ΔY. And the threshold value Yt, and the direction deviation amount Δθ and the threshold value θt are compared.

Then, when the positional deviation amount ΔX exceeds the threshold value Xt, the positional deviation amount ΔY exceeds the threshold value Yt, or the orientation deviation amount Δθ exceeds the threshold value θt, the drive control unit 42 controls the correction unit 25 to detect the pocket T1. If all the values are corrected, the correction unit 25 is not driven.

As a result, the proximity between the inner wall of the pocket T1 and the electronic component D can be determined only by comparison processing, and the accuracy in detecting the proximity between the inner wall of the pocket T1 and the electronic component D is improved. It is possible to achieve a balance between improving efficiency, improving the reliability of the electronic component D, and improving yield.

(Other embodiments)
Each embodiment of the present invention has been described above, but various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof. For example, although the suction nozzle has been described as an example of the holding unit 11, an electrostatic suction method, a Bernoulli chuck method, or a chuck mechanism that mechanically clamps the electronic component D may be provided.

Further, the taping unit 2 is an example of a housing unit. The accommodation unit is not limited to the taping unit 2 and can achieve the object of the present invention as long as the accommodation unit holds the accommodation body in which a large number of accommodation locations are arranged and sequentially moves the accommodation locations to the accommodation position P1. can do. For example, as shown in FIGS. 27 and 28, in addition to the carrier tape T, the container may be a tray 31 in which tray pockets 32 are arranged in a two-dimensional array. The tray 31 may be distorted in a wall or the like that divides the tray pocket 32 during molding, and the tray pocket 32 may be misaligned or misoriented.

Therefore, as shown in FIGS. 27 and 28, even in the tray moving unit 3 that holds the tray 31, a position that is located before moving to the storage position P1 is set as the displacement confirmation position P2, and the displacement confirmation position P2 A second imaging unit 27 for imaging the tray pocket 32 is provided. Then, the deviation of the tray pocket 32 obtained at the deviation confirmation position P2 is corrected before the electronic component D is accommodated at the accommodation position P1. In addition, a ring holder having a container as a wafer ring is an example of a storage unit.

The tray moving unit 3 and the X-axis movement driving unit 252 and the Y-axis movement driving unit 253 of the ring holder move the tray 31 and the wafer sheet two-dimensionally along the parallel plane, thereby sequentially shifting the tray pocket 32 and the attachment location. It also functions as a function for positioning to the confirmation position P2 and the storage position P1 and a function for eliminating the positional deviation amount in the X-axis and Y-axis directions of the tray pocket 32 and the pasting location.

2 Taping unit 21 Sprocket 22 Sprocket 23 Motor 24 Motor 25 Correction unit 251 Z-axis rotation drive unit 251a Motor 251b Rotation shaft 252 X-axis movement drive unit 252a Slider 252b Screw shaft 252c Motor 253 Y-axis movement drive unit 253a Slider 253b Screw shaft 253c Motor 26 First imaging unit 27 Second imaging unit 28 Pocket shift detection unit 28a Component position detection unit 281 Origin information 282 Reference direction vector 283 Position vector 284 Direction vector 285 Position vector 286 Direction vector 29 Unit body 41 Determination unit 42 Drive Control unit T Carrier tape T1 Pocket D Electronic component P1 Storage position P2 Misalignment confirmation position P3 Storage inspection position 10 Electronic component transport device 11 Holding means 111 Slider 112 Extension lock 113 Adsorption nozzle 12 Carriage table 121 Through hole 122 Rail 13 Direct drive motor 14 Advance / retreat drive 141 Rod 15 Supply unit 16 Electrical test unit 17 Visual inspection unit 18 Classification unit 19 Position correction unit 191 Third imaging unit 192 XYθ stage 3 Tray moving unit 31 Tray 32 Tray pocket

Claims

A storage unit that holds a storage body having a large number of storage locations and stores electronic components transported along a transport path at a storage position,
A first moving means for moving the container in a plane and positioning each of the accommodation points at the accommodation position;
An accommodation location imaging means for imaging the accommodation location before reaching the accommodation position or the accommodation position;
An accommodation location deviation detection means for analyzing the image captured by the accommodation location imaging means and detecting a deviation of the accommodation location;
A second moving means for moving the container in a plane so as to eliminate the displacement of the accommodation portion before accommodating the electronic component in the accommodation portion where the displacement is detected;
Providing
Containment unit characterized by.
Component imaging means for imaging the electronic component on the transport path;
Component position detection means for analyzing an image captured by the component imaging means and detecting a deviation from a reference position of the electronic component;
Third moving means for moving the electronic component in a plane so as to eliminate the deviation of the electronic component from the reference position;
Further comprising,
The housing unit according to claim 1.
Component imaging means for imaging the electronic component on the transport path;
Component position detection means for analyzing the image captured by the component imaging means and detecting the position of the electronic component;
Further comprising
The accommodation location deviation detection means detects the deviation of the accommodation location relative to the electronic component based on the position of the electronic component detected by the component position detection means and the image taken by the accommodation location imaging means,
The second moving means is configured to move the container in a plane so as to eliminate the displacement of the accommodation portion with respect to the electronic component;
The housing unit according to claim 1.
The second moving means includes
Only when the inner wall of the housing location and the electronic component come within a predetermined distance, eliminate the displacement of the housing location,
The accommodation unit according to any one of claims 1 to 3.
The second moving means includes
Eliminating the displacement of the accommodation location only when the displacement of the accommodation location detected by the accommodation location deviation detection means is greater than or equal to a predetermined value;
The storage unit according to claim 4.
Determination means for determining the closeness between the inner wall of the housing location and the electronic component;
Drive control means for controlling the driving or non-driving of deviation elimination by the second moving means according to the determination means;
Further comprising,
The housing unit according to claim 4 or 5, characterized by the above-mentioned.
An electronic component transport apparatus that transports electronic components along a transport path and stores electronic components in a container having a large number of storage locations,
Holding means for holding and releasing the electronic component;
A conveying table having the holding means on the outer periphery and intermittently rotating;
An accommodation position set at one stop position of the holding means;
A first moving means for moving the container in a plane and positioning each of the accommodation points at the accommodation position;
An accommodation location imaging means for imaging the accommodation location before reaching the accommodation position or the accommodation position;
An accommodation location deviation detection means for analyzing the image captured by the accommodation location imaging means and detecting a deviation of the accommodation location;
A second moving means for moving the container in a plane so as to eliminate the displacement of the accommodation portion before accommodating the electronic component in the accommodation portion where the displacement is detected;
Providing
An electronic component conveying device characterized by the above.
The holding means extends outward in the radial direction of the transfer table, bends toward the container, holds an electronic component at a bent tip,
The accommodation position is set at a bending destination of the holding means,
The deviation confirmation position is set closer to the center of the transfer table than the bent tip of the holding means;
The electronic component conveying apparatus according to claim 7.
A rail extending in a direction orthogonal to the radial direction of the transfer table is provided on the outer periphery of the transfer table,
The holding means slides while being guided by the rail, and advances and retreats toward the container;
The electronic component conveying apparatus according to claim 8.
Component imaging means for imaging the electronic component on the transport path;
Component position detection means for analyzing an image captured by the component imaging means and detecting a deviation from a reference position of the electronic component;
Third moving means for moving the electronic component in a plane so as to eliminate the deviation of the electronic component from the reference position;
Further comprising,
The electronic component conveying apparatus according to claim 7, wherein the electronic component conveying apparatus is an electronic component conveying apparatus.
Component imaging means for imaging the electronic component on the transport path;
Component position detection means for analyzing the image captured by the component imaging means and detecting the position of the electronic component;
Further comprising
The accommodation location deviation detection means detects the deviation of the accommodation location relative to the electronic component based on the position of the electronic component detected by the component position detection means and the image taken by the accommodation location imaging means,
The second moving means is configured to move the container in a plane so as to eliminate the displacement of the accommodation portion with respect to the electronic component;
The electronic component conveying apparatus according to claim 7, wherein the electronic component conveying apparatus is an electronic component conveying apparatus.
The second moving means includes
Only when the inner wall of the housing location and the electronic component come within a predetermined distance, eliminate the displacement of the housing location,
The electronic component carrying apparatus according to claim 7, wherein
The second moving means includes
Eliminating the displacement of the accommodation location only when the displacement of the accommodation location detected by the accommodation location deviation detection means is greater than or equal to a predetermined value;
The electronic component carrying device according to claim 12.
Determination means for determining the closeness between the inner wall of the housing location and the electronic component;
Drive control means for controlling the driving or non-driving of deviation elimination by the second moving means according to the determination means;
Further comprising,
The electronic component conveying apparatus according to claim 12 or 13.