JP2799993B2 - Tray for transporting precision parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semiconductor device such as an integrated circuit and a memory circuit and various odd-shaped components (for example, a connector,
The present invention relates to a tray for transporting precision parts suitable for individually holding various electronic devices such as switches and transmitters or relatively small precision parts for assembling precision machinery and transporting them to an automatic assembling machine or the like. With many granular terminals on one side
The present invention relates to a component transport tray suitable for transporting A (ball grid array).

[0002]

2. Description of the Related Art In recent years, there has been a tendency that most of the main circuit components are formed into chips in order to improve the operation reliability and assembling efficiency of electronic equipment. For this reason, a relatively large collective transfer tray in which concave portions for accommodating chips are arranged in a plurality of rows and columns is used for supplying IC chips and the like to various intermediate processing lines and final assembly lines. In such a large container, individual transfer of chips to the processing or assembly line is performed by a robot hand or the like which is juxtaposed near one side edge of the transfer line, but the other side edge of the transfer line is used. The robot hand had to repeatedly move a long distance when taking out the IC chip at a site close to the robot from the container.

[0003]

In such a conventional apparatus, the reciprocating movement of the robot hand increases the waiting time on the processing line side. Since the position has to be changed every time, if the grip is lost, there is a possibility that not only breakage of the chip but also confusion in the processing line may occur. In order to avoid such adverse effects, the position control of the robot hand must be performed with high precision, and the cost for control increases. In addition, the I
It is necessary to securely hold the C chip in the container so that it does not fall off during transportation, and it is required that the gripping force on the IC chip is easily released when being taken out by the robot hand, contrary to during transportation. You.

[0004] Therefore, the present invention provides a tray which can be connected in a chain and is compactly formed by an integrally molded product to facilitate operation by a robot hand on a line, and to convey a conveyed article accommodated in an accommodating recess of the tray. A clamping body for elastically clamping and holding from the left and right is provided, and the clamping body is repeatedly moved from the non-clipping position to the clamping position or from the clamping position to the non-clipping position with respect to the conveyed article accommodated in the concave portion, A main object of the present invention is to provide a tray capable of facilitating a series of working operations by facilitating stable holding during transportation and removal by a robot arm.

[0005]

In order to achieve the above object, the present invention takes the following technical measures. That is, the tray according to the present invention is a molded article made of a synthetic resin material and includes a tray main body 2 having an article accommodating recess 1 for accommodating a conveyed article. Connecting pieces 5 and 6 provided on the edge and connecting the trays so as to bend each other, and a pair of left and right holding members 7 and 7 for holding the conveyed articles accommodated in the article accommodating recess 1 from right and left.
Swinging arms 8 for elastically swinging the holding members 7, 7 between a position for holding and holding the conveyed article B and a position separated from the holding position for holding the article B; A contact body 10 which makes contact with a guide 9 provided externally during the traveling to resiliently oscillate, and wherein the holding member 7 holds a conveyed article B by holding a conveyed article B from above and below in a substantially V-side shape with a concave center. It has a structure having an upper protruding piece 7a and a lower protruding piece 7b so as to have a shape, and further, when the holding member 7 moves to a position for holding the conveyed article B, a back surface of the holding member 7 A retraction preventing body 12 that engages with the side or the back portion 8a of the swing arm 8 to prevent the holding member 7 from moving backward is formed in the movement area of the holding member 7 or the swing arm 8. Things.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In carrying out the present invention, an upper rocking stopper 13 is provided on the upper surface side and a lower rocking stopper 14 is provided on the lower surface side of the holding member 7 at the position where the conveyed article is held. May be arranged and formed so as to prevent swinging in the vertical direction while the holding member 7 holds and holds the conveyed article. In addition, the tray main body 2
It is preferable to form frame-feeding engagement portions 4 by a transport mechanism on one or both sides of the left and right side edges 3 and 3 at predetermined intervals. The engagement portions 4 may be holes or protrusions. However, instead of providing such an engaging portion 4, it is also possible to convey using the connecting space of the connecting pieces 5, 6. The shape of the article storage recess 1 can be embodied as an appropriate shape according to the shape of the conveyed article.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 6 show a basic embodiment of a tray A according to the present invention, in which a plane square IC chip B, for example, a plane square BGA (ball / ball) having a large number of granular terminals on one surface. Used to transport grid arrays. The tray A is integrally formed of a synthetic resin material as a whole, and has a shape suitable for transporting an IC chip B having a substantially square shape in plan view. Therefore, the tray main body 2 is provided with the article storage recess 1 having a substantially square shape in plan view and a size suitable for storing the IC chip B. The resin material as the molding material is preferably, for example, polyacetal (POM). The article accommodating recess 1 is chamfered at its periphery so that the claw of the robot hand can grip the periphery of the chip B when the IC chip B is accommodated, thereby forming an inclined surface 1a.
Receiving seats 1b for receiving chips are provided at four corners at the lower end of the inclined surface 1a.

Small holes are formed at right and left side edges 3, 3 of the tray main body 2 as frame-feeding engaging portions 4 by a transport mechanism at predetermined intervals. In this embodiment, the engaging portions 4 are formed as holes, but may be protrusions. Further, connecting pieces 5, 5, 6, and 6 for connecting the trays so as to be relatively rotatable are formed on the left and right sides on the front end side and the left and right sides on the rear end side of the tray main body 2 so as to extend horizontally. The connecting pieces 5 and 6 have a structure in which the trays can be bent at the connecting pieces 5 and 6 when a large number of trays are connected back and forth. In this embodiment, one connecting piece 5 is provided with a pin hole 5a, and the other connecting piece 6 is provided with a pin 6a, and can be rotated by fitting the pin hole 5a and the pin 6a of the tray to be connected. However, instead of this, for example, the connecting pieces 5 and 6 may be formed in the shape of a thin plate tongue, and these may be flexibly connected by means such as fusion. In this way, a large number of trays connected in a chain and bendable by the connecting pieces 5 and 6 can be wound around a reel and stored. The structure of the connecting pieces 5 and 6 is not limited to the embodiment, but may be any shape as long as it can be bent at the connecting portion.

Further, a pair of left and right holding members 7, 7 for holding the IC chip B to be housed from left and right are provided on the left and right of the article housing recess 1, respectively. The holding member 7 is connected at its back to the tray main body 2 by swinging arms 8, 8. The swinging operation of the swinging arm causes the holding members 7, 7 to hold and hold the IC chip B. And a position to be released. On the lower surface of the swing arm 8, a pin-shaped contact body 10 that contacts a guide 9 provided on a chute 11 of a carry-in line while the tray is running to elastically swing the holding members 7, 7 projects downward. Is provided.

Further, in this embodiment, as shown in FIGS. 5 and 6, the holding surface of the IC chip B in the holding member 7 has an upper portion such that it has a substantially V-shape whose center is depressed when viewed from the side. The IC chip B is formed by a protruding piece 7a and a lower protruding piece 7b, and the IC chip B is sandwiched from above and below and held by a recessed portion formed by the upper and lower protruding pieces 7a and 7b. The holding member 7 shown in the drawing has a lower protruding piece 7b formed at an intermediate portion in the front-rear direction in plan view and an upper protruding piece 7a formed on both sides in the front-rear direction in plan view due to the molding relationship. The IC chip B is clamped from the left and right by the left and right clamping members 7 and 7 thus configured. Further, reference numeral 12 denotes a protruding member that swings upward in FIG. 2, and when the holding member 7 moves to a position where the chip B is held (the position in FIG. 3), the back portion 8a of the swing arm 8 To prevent the holding member 7 from moving in the retreating direction. The retraction preventing body 12 may be configured to contact the rear surface of the sandwiching member 7 to prevent retraction. 3 and FIG.
As shown in the above, when the gripping position is at, the upper surface side is prevented from rising upward by the upper swing preventing projections 13, 13, and the lower surface side is prevented from moving downward by the lower swing preventing frame 14, It is designed to be stable without swinging up and down.

The trays A formed as described above are connected in a chain by connecting means by connecting pieces 5 and 6, as shown in FIG. 4, and IC chips B are stored in the article storing recesses 1 of each tray A. To the automatic assembly line. During this loading, the contact members 10 below the swing arm 8 come into contact with the guides 9 provided on both sides of the loading line 11,
7, FIG. 6 from the non-clamping position shown in FIG.
The IC chip B is forcibly elastically swung to the holding position shown in FIG. The long chain trays connected in a large number in this manner are wound on a reel and conveyed to a required factory or the like.

When the IC chip B is to be taken out of the reel at a required factory or the like, the contact member 10 is guided outward by a guide provided on the transfer line in a manner opposite to that at the time of carrying in, so that the clamping member is held. 7 may be swung to the non-clamping position, sucked by a robot hand (not shown) or the like by a generally used suction suction means, and pulled out upward.

FIGS. 7 and 8 show another embodiment of the tray. In the tray A shown in this embodiment, the shape of the article accommodating concave portion 1 formed in the center of the tray main body 2 is a conveyed article. Here, the IC chip B has a structure suitable for a circular shape in plan view. That is, the article-receiving recess 1 has a substantially planar circular shape in conformity with the shape of the IC chip, and the shape of the IC chip holding portion of the holding member 7 also matches the shape of the IC chip. It is formed in. The outer peripheral surface of the article accommodating recess 1 is also formed as an arc-shaped inclined surface 1a so that the article naturally moves to the center, and receiving seats 1b for receiving chips at four circumferential positions of the accommodating recess 1 are provided. In other respects, the structure is in accordance with the main embodiment. As described above, the shape of the article accommodating concave portion 1 of the tray according to the present invention may be an appropriate shape according to the external shape of the conveyed article, which is oval, elliptical, trapezoidal, rhombic, or any other shape. Needless to say, there is.

Although the embodiment which is considered to be representative of the present invention has been described above, the present invention is not necessarily limited to this embodiment. For example, two swing arms 8 for swinging the sandwiching member 7 do not necessarily have to be provided side by side, and may have a structure capable of swinging between the article sandwiching position and the non-clamping position. In addition, the bottom surface of the housing recess 1 of the tray main body 2 is opened as in the above embodiment, and
Although it is preferable that the C chip can be pushed out from below when the chip is taken out, the bottom surface may be closed. In addition, the present invention can be practiced with the above-mentioned constituent features, achieving the above-mentioned object, and appropriately modifying within a range having the following effects.

[0015]

As described above, the tray according to the present invention is made of a synthetic resin material so that a large number of simple substances can be connected in a chain, and is compactly formed of a synthetic resin material. The holding member can be elastically pinched and held from the left and right. In particular, the shape of the pinching member is substantially V-shaped with a concave center at the side so as to hold the conveyed article from above and below. And a structure having an upper projecting piece and a lower projecting piece as described above, and further, when the sandwiching member is moved to a position for sandwiching the conveyed article, it engages with the back side of the sandwiching member or the back of the swing arm. Since the retraction preventing body for preventing the retraction movement of the nipping member is formed in the moving area of the nipping member or the swing arm, the conveyed article can be held very stably and surely, resulting in damage or damage. Damaged even precision parts Resulting causes can be reliably transported to the point of use, such as assembly line equipment without, various remarkable effects such can be subjected to the assembling and mounting work efficiently transport members can be expected.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a tray according to the present invention.

FIG. 2 is a plan view of FIG. 1 in which a clamping member is in a non-clamping position.

FIG. 3 is a plan view of FIG. 1 in which a clamping member is at a clamping position.

FIG. 4 is a plan view showing a state in which trays are connected in a chain.

FIG. 5 is a sectional view taken along the line VV in FIG. 2;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 3;

FIG. 7 is a plan view showing another embodiment and corresponding to FIG. 2;

8 is a plan view of the embodiment of FIG. 7 in a state corresponding to FIG. 3; [Brief Description of the Drawings] 1 Article storage recess 2 Tray main body 5 Connecting piece 6 Connecting piece 7 Nipping member 7a Upper projecting piece 7b Lower projecting piece 8 Swing arm 8a Arm back 9 Guide 10 Contact body 12 Retraction preventing body 13 Upper swing stopper 14 Lower swing stopper A Tray B Conveyed article

Claims (2)

(57) [Claims] A molded article made of a synthetic resin material, wherein the tray is provided with an article accommodating recess for accommodating articles to be conveyed.
A connecting piece provided on the front edge and the rear edge of the tray main body for connecting the trays to bendable.
(5), (6), a pair of left and right holding members (7), (7) for holding the conveyed articles accommodated in the article accommodating recess (1) from left and right,
Swinging arms (8), (8) for elastically swinging the holding members (7), (7) between a position for holding and holding the conveyed article (B) and a position separated from the holding position for holding; A contact body (10) for causing the swing arm (8) to elastically swing by contacting a guide (9) provided outside while the tray is running, wherein the holding member (7) is provided with a conveyed article (B ) From above and below, the upper side protruding piece (7a) and the lower side protruding piece (7b) whose side shape becomes a substantially V shape with a concave center.
Further, when the holding member (7) is moved to a position for holding the conveyed article (B), the back side of the holding member (7) or the swing arm (8) A retraction preventing body (12) for engaging the back (8a) of the holding member (7) to prevent the holding member (7) from moving backward is formed in the movement area of the holding member (7) or the swing arm (8). Tray for transporting precision parts. 2. An upper rocking stopper (13) is disposed on the upper surface side and a lower rocking stopper (14) is disposed on the lower surface side of the clamped member (7) at the position where the conveyed article is clamped. The tray for conveying precision parts according to claim 1, wherein: