JPH0815914B2 - Precision parts transport tray - 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, a memory circuit or various irregularly shaped parts (for example, a connector, a switch, a transmitter), various electronic equipments or a relatively small precision machine assembly for precision machine assembly. The present invention relates to a tray for transporting precision parts suitable for holding individual parts (collectively referred to as “IC chips”) individually and carrying them into an automatic assembly machine or the like.

[0002]

2. Description of the Related Art In recent years, most of the main circuit components have tended to be formed into chips in order to improve the operational reliability and assembling efficiency of electronic equipment. Therefore, in order to supply IC chips to various intermediate processing lines, final assembly lines, and the like, a relatively large transport container having chip receiving recesses arranged in a plurality of rows and columns is used. 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. When removing the IC chip at a location close to the robot from the container, the robot hand must reciprocate a long distance. This not only has a negative effect on efficiency because it increases the waiting time on the processing line side, but also requires the gripping position to be changed every time, and if there is not enough gripping, chip breakage or confusion in the processing line may occur. There is. In order to avoid such adverse effects, the position of the robot hand must be controlled with high precision, and the cost for control increases.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a compact unit tray which can be connected to each other in a chain shape is formed by an integrally molded product, and a desired number of unit trays are connected in a chain shape. In addition to facilitating the above-mentioned operation by the robot hand, it is possible to retract the articles in and out smoothly and without resistance so that the engaging claws that engage the articles when retracting and retracting the articles can be retracted. The main object of the present invention is to provide a tray that can hold the stored articles in a locked state.

[0004]

In order to achieve the above object, the present invention takes the following technical means. That is, the tray according to the present invention includes a tray main body (2) which is an integrally molded product made of a synthetic resin material and has a storage recess (1) for storing an article to be conveyed. ) Is formed with connecting pieces (5) and (6) for connecting the trays to each other in a bendable manner, and the left and right side walls (11) and (11) of the article accommodating recess (1). At least a pair of right and left rocking plates (13), (13) extending in the front-rear direction or the up-down direction along the inner surface of (11) are arranged.
3) is formed so that it can be elastically oscillated in a seesaw shape with a support rod (12) extending from a side wall (11) as a fulcrum at an intermediate portion thereof, and further, at one end of the oscillating plate (13). A contactor (15) penetrating through the opening (14) formed in the side wall and protruding to the outside of the side wall is formed, and the other end of the swing plate (13) faces the inside of the article storage recess (7). The structure is such that an engaging claw (16) projecting upward is provided.

[0005]

The tray (A) formed as described above is shown in FIG.
As shown in FIG. 5, a large number of trays (A) ... Are connected in a chain by connecting pieces (5) and (6). Then, the trays (A) are fed along a shallow guide groove (18) having a width substantially equal to the width of the tray article storage recess (1). When the tray is fed to the dogs (19), (19) formed facing the side edges of the guide groove (18), as shown in FIG. 4, the swing plates (13), (13)
The contactor comes into contact with the dog (19) and the rocking plate (13) rocks like a seesaw with the supporting rod (12) as a fulcrum, and the engaging claw (16) is retracted outward. By storing the IC chip (B) in the storage recess (1) at the time of this backward movement, the tray can be easily loaded without being obstructed by the engaging claws (16). Tray (A) moves further and dog (1
When separated from 9), the swing plate (13) elastically returns to its original position and engages with the upper surface of the leg of the IC chip (B) as shown in FIG. 5, thereby securely holding the IC chip. Is. Also, when the IC chip is taken out by being fed to the automatic machine line, the dog (19) is provided along the guide groove in the same manner as described above, so that the IC chip can be taken out without being disturbed by the engaging piece (16). It is possible.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of a tray (A) according to the present invention, which is a rectangular IC chip (B).
Used to store. The tray (A) includes a tray main body (2) provided with an article storage recess (1) having a substantially quadrangular shape in plan view for storing the IC chip (B), and is integrally formed of a synthetic resin material. As the resin material, for example, polyacetal (POM) is preferable. The article storage recess (1) is one size larger so that when the IC chip (B) is stored, there is a gap between the inner surface of the storage recess and the IC chip (B) into which the claw of the robot hand can fit. It is formed with dimensions. In this embodiment, the article storage recess (1) is formed with a front-rear width of 20 mm and a left-right width of 30 mm.

Horizontal left and right side walls (11) of the tray main body (2), left and right side edges (3) connected to the upper ends of (11),
The frame feed engaging portions (4) ... Of the transport mechanism are formed at (3) at a predetermined interval. In this embodiment, the engaging portions (4) ... Are formed as holes, but they may be projections. Further, the front wall surface (9) and the rear wall surface (1) mainly of the tray (2)
The pair of left and right connecting pieces (5) and (6) for connecting the trays to each other in a bendable manner are horizontally extended and formed in 0).

The one connecting piece (5) is provided with a substantially U-shaped concave groove (5a) having an opening edge portion slightly narrowed and opening upward, and the other connecting piece (6) has the concave groove (5a). Is provided with a laterally fitting pin (6b) having a diameter larger than the width of the narrowed opening edge and capable of being pressed and fitted into the concave groove (5a). Therefore, by pushing the fitting pin (6a) of the connecting piece (6) of one tray into the concave groove (5a) of the other tray connecting piece (5) so as to spread the narrowed opening edge portion. , The trays can be easily connected in a chain. In the connected state, the fitting pin (6a) is formed with a diameter larger than the width of the narrowed opening edge portion of the concave groove (5a), so that the tray cannot be easily separated during tray running. Absent. Further, the tray can be easily separated by pulling the fitting pin (6a) upward from the concave groove (5a) against the elastic engaging force.

Further, a pair of right rocking plates (13), (13) extending forward and backward along the inner surfaces of the left and right side walls (11), (11) of the article accommodating recess (1) are provided. The oscillating plate (13) is held at its intermediate portion by a supporting rod (12) against the adjacent side wall (11), and the supporting rod (1) is
It is formed so that it can elastically swing like a seesaw with the point 2) as a fulcrum. Further, a contactor (15) is formed at one end of the oscillating plate (13) so as to pass through an opening (14) formed in the side wall (11) and protrudes to the outside of the side wall. Engaging claws (1 that protrude toward the inside of the recess (1)
6) is provided. In the present embodiment, the left and right swing plates (13), the engaging claws (16), (16) of the (13) are arranged in the front-rear direction, but they may be formed in symmetrical positions. . The bottom plate (8) of the tray main body (2) is provided with a push-up hole (11) for pushing out the stored IC chip (B) from below.

In the tray (A) constructed as described above, as shown in FIG. 6, a large number of trays (A) ... Are connected in a chain by connecting pieces (5) and (6). To be done. Then, the tray (A) ... Is fed along a shallow guide groove formed with a width substantially equal to the left-right width of the article storage recess (1) of the tray. The guide groove (18) is attached to the swing plate (1
The dogs (19), (19) are formed in such a depth that the contactor (15) of 3) does not come into contact with the guide groove (18) and face the side edges of the guide groove (18). Is provided. When the tray is sent to the dogs (19) and (19), the swing plates (13) and (1
The contact of (3) comes into contact with the dog (19) and the swing plate (1
3) swings like a seesaw with the support rod (12) as a fulcrum,
The engaging claw (16) is retracted to the side plate (11) side. By storing the IC chip (B) in the storage recess (1) at the time of this backward movement, the tray can be easily loaded without being obstructed by the engaging claws (16). When the tray (A) further moves and moves away from the dog (19), the rocking plate (13) elastically returns to its original position and the IC chip (B) is returned as shown in FIG.
It engages with the upper surfaces of the legs of the IC, thereby securely holding the IC chip. Further, when the IC chip is sent out to the automatic machine line and taken out, the dog (19) is provided along the guide groove as in the above, so that the IC chip can be taken out without being disturbed by the engaging piece (16). it can.

In the present invention, it goes without saying that the form of the article storage portion (1) of the tray main body (2) is changed according to the form of the stored items. In addition, the vertical position of the engaging claw (16) of the swing plate (13) is also changed accordingly. FIG. 7 shows an embodiment in which the engaging claw (16) is formed at a position where it engages with the upper end of the stored article (B).
At this time, the front and rear width of the stored article (B) (left in FIG. 13)
When the width along the right direction) is short,
The length of the engaging claw (16) as shown in FIG.
Needless to say, it is formed to be long so as to cover the above. Well
In addition, the engaging claws (16) are provided at four places together with the contacts (15).
Formed, the engaging claw on the upper surface corner portion of the housing the article to (1
6) may be engaged.

FIGS. 9 to 11 show a second embodiment in which the tray (A) according to the present invention is changed to a form convenient for accommodating a cylindrical part (B ') such as a condenser. Is. In this embodiment, an oscillating plate (13) is vertically elongated and is supported by a supporting rod (12) at an intermediate portion so that it can elastically oscillate like a seesaw. In addition, the swing plate (1
3) The opening (1) formed in the side wall (11) at the lower end of
A contactor (15) penetrating through 4) and protruding to the outside of the side wall is formed, and an engaging claw (16) protruding toward the inside of the article storage recess (1) is provided at the upper end. Therefore, also in this embodiment, the dog (1) is moved along the guide groove (18) in the same manner as described in the first embodiment.
9) and (19), the contact (15) of the rocking plate (13) comes into contact with the dog (19) as shown in FIG. 1, and the rocking plate (13) is supported by the supporting rod (13). The engaging claw (16) can be retracted outward by swinging like a seesaw around the fulcrum 12). Further, when the tray (A) further moves and separates from the dog (19), the swing plate (13) elastically returns to its original position, and as shown in FIG. By engaging, the tubular part (B ') can be securely held and held.

Although the representative examples of the present invention have been described above, the present invention is not necessarily limited to the structures of these examples. For example, in the above embodiment,
The tray main body (2) has left and right side edges (3), (3) provided with frame feed engaging portions (4) ... Of the transport mechanism. The front and rear side wall portions of the main body) may be hooked by the feed claws and sequentially moved. Others The present invention can be appropriately modified and implemented as long as it has the constitutional requirements, achieves the above object, and has the following effects.

[0014]

As described above, according to the tray of the present invention, the unit trays which are compact and can be connected to each other in a chain are formed by an integrally molded product, and a desired number of unit trays are connected in a chain. The operation area of the robot hand on the automatic machine line can be made small and the operation can be facilitated. In particular, in the present invention, as described above, when the stored articles are loaded and unloaded, they are stored. Since the engaging claw that engages the article can be retracted to a position where it does not interfere with the taking in and out of the article, the article can be stored and taken out smoothly and without resistance, and damage to fine and ultra-precise parts can be prevented beforehand. You can
Moreover, since the engaging claw and the stored article are not elastically engaged with each other, the stored article can be securely held in a locked state, which allows the tray to be set on the automatic machine line as shown in FIG. There are various remarkable effects such that the stored articles do not separate and fall from the tray even when the articles are bent or bent and turned upside down.

[Brief description of drawings]

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

FIG. 2 is a plan view of the tray.

FIG. 3 is an enlarged cross-sectional view of a main part of the tray.

FIG. 4 is an enlarged cross-sectional view showing the operation of engaging claws in the tray.

FIG. 5 is an enlarged vertical cross-sectional view showing an engaged state of engaging claws.

FIG. 6 is a perspective view showing a state in which trays according to the present invention are connected in a chain.

FIG. 7 is a sectional view similar to FIG. 5, showing another embodiment of the engaging claw.

FIG. 8 is a cross-sectional view showing a state in which trays according to the present invention are connected in a chain and bent.

FIG. 9 is a perspective view showing a second embodiment of the tray according to the present invention.

FIG. 10 is a longitudinal sectional view of a part of the second embodiment.

FIG. 11 is an enlarged cross-sectional view showing the operation of the engaging claws in the second embodiment.

FIG. 12 is a view similar to FIG. 1 showing still another embodiment of the engaging claw.
Perspective view.

FIG. 13 is a plan view of the embodiment shown in FIG.

[Explanation of symbols]

 (1) Article storage recess (2) Tray main body (3) Left and right side edges (4) Frame feed engaging part (5) Connecting piece (6) Connecting piece (11) Left and right side walls (12) Support rod (13) Oscillating plate (14) Opening provided on side wall (15) Contactor (16) Engaging claw (A) Tray (B) IC chip

Claims (1)

[Claims] 1. An integrally molded product made of a synthetic resin material,
A tray main body (2) having a storage recess (1) for storing an article to be conveyed is provided, and a connecting piece (for bending the trays to each other) is connected to a front end edge and a rear end edge of the tray main body (2). 5) and (6) are formed, and at least a pair of left and right rocking plates (1) extending longitudinally along the inner surfaces of the left and right side walls (11) and (11) of the article storage recess (1).
3) and (13) are arranged, and the rocking plate (13) is held at its intermediate portion by a supporting rod (12) on an adjacent side wall (11) and has a seesaw shape with the supporting rod (12) as a fulcrum. A contact (1) which is formed so as to be able to elastically oscillate, and which further penetrates an opening (14) formed in the side wall (11) at one end of the oscillating plate (13) and projects to the outside of the side wall. 15)
A tray for conveying precision parts, in which an engaging claw (16) protruding toward the inside of the article storage recess (7) is provided at the other end of the swing plate (13).