JPH0767028B2 - IC tray supply device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC chip mounting device, and more specifically, to enable an IC chip mounting device to securely and quickly grip a predetermined IC chip and mount it on an IC substrate. Therefore, the present invention relates to an IC tray supply device for steadily supplying the IC chip to the vicinity of the IC chip mounting device.

2. Description of the Related Art As a device for supplying a predetermined IC chip to the vicinity of an IC chip mounting device that has been used to directly mount an IC chip on an IC substrate, an IC tray supply device, a tape-shaped component supply device, and further A stick-shaped component supply device and the like are known. These supply devices are appropriately selected according to the shape and dimensions of the IC chip to be supplied, and in some cases only a single supply device may be used independently, but in many cases, Two or three supply devices are used in conjunction with each other to supply a wide variety of chips of various shapes or sizes.

Thus far, as the IC tray supply device, the IC tray 14 mounted on the IC tray mounting base 12 housed in a plurality of stacked layers in the IC tray storage box 10 as shown in FIG.
To pull out IC16 sequentially from the
To the IC tray storage box 10 side, and then driving the arm 20 up and down to hold the tray mounting base 12 (FIG. 14), and then pulling back the arm 20 to bring the base 12 from the storage box 10 to a predetermined position. The IC chip mounting device 24 conveys the IC 16 to the substrate 22 from that position,
Tray feeder 18 is known.

However, according to such an IC tray supply device 18, the IC
When the tray 14 is taken out from the IC tray storage box 10, generally, there are two drive sources including a belt-driven motor and a cylinder (the tray pull-out arm 20 moves the drive source to drive back and forth and the up and down respectively). Drive source) required,
Further, since it is necessary to pull out the IC tray and hold it, it is not possible to transfer the chip to the vicinity of the substrate due to the space of the operation mechanism section. For this reason,
It has been impossible to sufficiently bring the position of the mounting substrate 22 on the IC chip mounting machine and the position of the IC tray 14 into close proximity to each other due to the space occupied by the driving system and the like in the supply devices so far.

Therefore, if all of the ICs in the IC tray have to be carried out by the onboard machine, the IC chip onboard machine must go over the IC for a wide area, and the travel stroke of the onboard machine must be expanded. In addition, the cost of the chip mounting machine becomes very large, and the distance from the substrate causes a decrease in mounting workability and a loss of mounting time.

On the other hand, in order to solve these problems, there is also a method of using an XY unit for the IC tray supply device and supplying the IC to a dedicated table for the IC tray supply device (Fig. 16).
It is obvious that such a system causes a large increase in cost due to an increase in size of the device.

The purpose of all of these is to accurately supply the parts to the IC chip mounted machine, but if the IC tray supply device up to now runs out of IC during operation, Since the size of the device is larger than that of the tape-shaped component supplying device, the device must be stopped each time it is replenished.

Moreover, in the conventional IC tray supply device, when the IC tray is pulled out from the IC tray storage box when the IC is supplied to the mounting machine, or when the IC is replaced or replenished, it is an obstacle for pulling work. Since a positioning member cannot be used on the supply side, a rotatable door-shaped stopper 21 was provided when necessary (Fig. 13). In order to improve the operability of the stopper 21 when the IC tray storage box is separated from the supply device, a drive source dedicated to the stopper must be separately provided in the storage box, and moreover, it is necessary to open and close the stopper. It was necessary to provide the necessary large space.

The present invention solves these problems.

Means for Solving the Problems In order to solve the above problems, the IC tray supply device of the present invention,
An IC tray storage box capable of accommodating a plurality of IC tray mounting bases holding an IC tray having a plurality of ICs, and an IC tray supply main body for receiving the box. The IC tray storage box has open parts at the front and back. A stopper is provided at the rear opening to prevent the IC tray from slipping out. In addition, this stopper provides an operating switch for the IC tray supply body. Further, the main body has an IC tray position restriction unit, an IC tray pull-out unit, and a transfer arm.

By the above means, the IC tray position regulation unit presses the IC tray in the IC tray storage box against the stopper
Achieve proper positioning of the IC tray. Next, the IC tray pull-out unit pulls out the IC tray from the inside of the box. Since the IC tray is transported to the position adjacent to the IC substrate, the transport arm starts to transport the IC unit pulled out by the IC tray pull-out unit halfway. When there is no IC tray in the IC tray storage box, the IC tray can be fed into the box by activating the operation switch by the stopper and continuing the operation of the IC chip mounting device.

Example 1 FIG. 1 shows an overall perspective view of an IC tray supply device 30 according to the present invention. This device 30 generally includes an IC tray storage box 34 that stores a plurality of IC tray mounting bases 32 in a stack.
And an IC tray supply body 44. This body 44 is
A vertically movable storage box moving table 36 that supports the storage box 34 along arrow 80, and a plate member 39 extending in a direction orthogonal to the movement guide shaft 37 of the table 36. There is. The plate member 39 includes an IC tray position control unit 38 that positions the base 32 to a predetermined position in the storage box 34, an IC tray drawer unit 40 that pulls out the base 32 from the storage box 34, and a base 32 that is pulled out. It has a transfer arm 43 for transferring the sheet to the substrate 41 side along a pair of guide rails 42.

The IC tray storage box 34 has a front opening 86 with front and back sides open.
Also, the box body 50 does not have a substantially rectangular cross section formed of the rear opening portion 68. The general box body 50 includes a top plate 52, a bottom plate 54,
It has a pair of side plates 56, 56. A handle 58 is attached near the center of the top plate 52 so that the storage box 34 can be carried. A plurality of grooves 60 are formed on the inner surfaces of the side plates 56, 56, or a grooved member having a plurality of grooves 60 is attached. The IC tray mounting bases 32 are housed in a stack in these opposing grooves 60 at a predetermined interval.

An IC tray 48, on which a predetermined number of ICs 46 are arranged in a fixed array, is placed on the base 32. Also this base
At the front and rear ends of 32, a rising portion 62 (FIG. 10) extending in a direction orthogonal to the groove 60 is provided. Around the left and right sides of the base 32, a similar rising portion 64 (10th
(Fig.) Is provided to prevent movement of the IC tray 48. This is because there is a difference in the size of the tray 48 depending on the type of IC used, and all the trays are securely fixed.

Further, as shown in FIG. 7, a punching opening 66 is formed from the front-rear direction end portion of the bottom portion of the base 32 to the rising portion 62. In the rising portion 62, the width dimension L of the lower portion of the opening 66 close to the bottom portion of the base is larger than the width dimension 1 of the upper portion extending to the middle portion of the rising portion 62.

As shown in FIG. 1, the rear opening 68 of the IC tray storage box 34 is shown.
In order to prevent the base 32 stored in the storage box 34 from sliding down from the rear opening, a mounting base stopper is provided.
70 is provided. The stopper 70 is rotatably attached to the bottom portion 54 of the storage box 34 by a pin 72 or the like. Stopper
70 is composed of an angle member having an L-shaped cross section, for example. At the lower end of the stopper 70, a folded-back portion 74 extending in a direction away from the storage box 34 is provided. On the other hand, a groove 78 that engages with a set screw 76 provided on the top plate 52 is provided on the upper end of the stopper.

The folded-back portion 74 of the stopper 70 activates the confirmation sensor 82 on the table 36 when the storage box 34 is placed on the moving table 36 of the main body 44 as shown by the arrow 80 in FIG. Depending on the type, light reflection, magnetic force, etc. can be used.) When the sensor 82 is activated, the table 36 becomes movable up and down along the guide shafts 37, 37 by a known means in response to a signal from the IC chip mounting machine. The table 36 also has two storage box locating pins 84 for receiving two locating holes (not shown) in the bottom surface of the bottom plate 54 of the storage box 34 for properly receiving the storage box 34. There is.

The main body 44 further includes a storage box 34 placed on the table 36.
To the base 32 stored in the groove 60 of the
An IC tray position restricting unit 38, an IC tray pulling-out unit 40, and a transfer arm 43, which operate from the front opening portion 86 of FIG.

As shown in FIG. 3, a position regulating unit 38 for positioning the base 32 with respect to a predetermined position of the storage box 34 includes an operating cylinder 45, a position regulating body 47 that can be moved back and forth and up and down by the cylinder 45. Consists of. Working cylinder 45 is a plate member
The L-shaped member 49, which is fixed to 39 (FIG. 1) by a fixing member such as a screw, is similarly fixed by a known fixing means such as a screw. The position restricting body 47 includes an IC tray pressing piece 51 having a U-shaped cross section for abutting against the front rising portion 62 of the IC tray mounting base 32, a U-shaped body 53 fixed to the plate member 39, and the pressing. Pin 51 and U-shaped body 53 to each other
IC tray pushing link pivotally attached via 55 and 57
It is composed of 59 and. Also, the rear part of the pushing piece 51 is
It is connected to a piston rod 65 that operates in the cylinder 45 via a pin 61 and a joint 63.

Therefore, when the cylinder 45 operates and the piston lot 65 extends, the pushing piece 51 is linked with the link 59 as shown by the solid line in FIG.
The left side (rear) rising portion 62 of the base 32 is abutted against the stopper 70 in the storage box 34 while moving upward to the left while being controlled by the right side (front side) of the base 32. The base 32 can be always positioned at a fixed position by pressing against it. On the contrary, when the piston lot 65 enters the cylinder 45, the pushing piece 51 reaches the position shown by the broken line in FIG.
Is pulled back to the lower right while being regulated by the link 59.
Therefore, even when the base 32 is pulled out from the storage box 34 to the right in FIG. 4, the base 32 can be pulled out freely without being disturbed by the unit 38.

On the other hand, the base 32 positioned at a predetermined position in the storage box 34
Is pulled out from the storage box 34, the IC tray drawer unit 40, which is movable in the front-back direction on the first guide member 67 fixed to the plate member 39, is an IC tray drawer arm cylinder.
IC tray drawer unit main body 71 containing 69,
A tray drawer arm 75 that pivots around a pin 73 pivotally attached to the main body 71 by the operation of the arm cylinder 69;
Consists of. The tip of the arm 75 has an opening 66 (7th
The width dimension is smaller than L so that it can be inserted, and a neck portion 77 having a width dimension smaller than 1 is formed slightly inward of the tip.

When the main body 71 is moved toward the storage box 34 by the known means similar to that shown in FIG. 14, the arm 75 is inserted into the opening 66 of the base 32 whose position is previously regulated by the position regulating unit 38 (FIG. 7). Then, when the arm cylinder 69 is operated, the arm 75 rotates clockwise around the pin 73 (FIG. 6), and the neck portion 77 of the arm 75 fits into the opening in the rising portion 62 of the base 32. When the unit main body 71 is pulled back after the neck portion 77 of the arm 75 is completely engaged with the opening in the rising portion 62, the base 32 with which the arm 75 is engaged is pulled out from the storage box 34. After the unit main body 71 is pulled out from the storage box 34 to a predetermined position on the base 32, the arm cylinder 69 is operated in the left-right direction to rotate the arm 75 counterclockwise and release the base 32 to that position.

The IC tray mounting base 32 pulled out from the storage box 34 by the IC tray pull-out unit 40, together with the IC 46, the board
A transfer arm 43 that moves to a position adjacent to 41
Has a main body 81 which slides on the second guide member 79 fixed to the plate member 39 by a known means such as a cylinder device or a belt device. The main body 81 has a hook 83 and a hook 83.
A cylinder 85 that moves up and down is attached.

Thereby, the IC tray mounting base 32 pulled out by the IC tray pull-out unit 40 and the front rising portion 62 are opposed to each other, and the hook 83 is engaged by the cylinder 85 (9th
Then, the transfer arm 43 is transferred toward the substrate 41 (FIG. 10). When the base 32 reaches the position closest to the substrate 41, the base 32 abuts against the IC tray mounting base stopper 87 fixed to the plate member 39 and stops at that position.

After that, the IC 46 on the IC tray 48 is carried out to a predetermined position of the substrate 41 arranged in proximity thereto by a known means.

The operation of the present invention will be described with reference to FIG.

First, the IC tray 48 in which the desired IC 46 is placed in a predetermined position in advance.
And prepare the IC tray on the IC tray mounting base 32. Next, a plurality of the bases 32 are set in the groove 60 in the IC tray storage box 34. These bases 32 are storage boxes
By moving the stopper 70 of 34 around the pin 72 to the horizontal position as shown in FIG. 2, the stopper 70 can be easily set from the rear opening 68 of the box.

After housing a predetermined number of bases 32 in the box 34, the stopper 70 is raised, and the groove 78 of the stopper 70 is locked and fixed to the set screw 76 as shown in FIG.

The storage box 34 storing the IC tray 48 is transferred onto the storage box moving table 36 of the IC tray supply main body 44 along the arrow 80, and set on the pin 84 of the table. At this time, the stopper 70
The turn-back portion 74 of the actuates the confirmation sensor 82 on the table 36.

Therefore, the sensor 82 is turned “ON”. This allows the IC
Communication between the chip mounting machine (see reference numeral 24 in FIG. 12) and the IC tray supply device 30 becomes “ON LINE”.

When the IC chip mounting machine starts the chip mounting operation, the storage box 34 placed on the table 36 is replaced by the required IC tray.
The position is appropriately adjusted by moving the table 36 up and down along the movement guide shaft 37 to a position where 48 can be supplied.

Next, the IC tray position regulating unit 38 (Fig. 3) is activated. That is, after the box 34 is adjusted to a predetermined height, the operating cylinder 45 operates, and the piston rod 65 moves the IC tray pressing piece 51 upward and leftward in FIG. 3 through the knuckle joint 63 and the pin 61. Push out. The pressing piece 51 has a pin 57
The movement is restricted by a link 59 that pivots around the, and the pushing movement is converted into a linear movement in the left horizontal direction approximately. For this reason, the pressing piece 51 abuts against the front rising part 62 of the base 32 housed in the box 34, pushes it, and presses the base 32 against the stopper 70. Therefore, the position of the base 32 is always restricted to a fixed position.

After that, the cylinder 45 operates in the opposite direction to pull the pressing piece 51 back to the right. Therefore, the piece 51 pivots around the pin 57 and is pulled back to the lower right position shown by the broken line in FIG.

Next, the IC tray pull-out unit 40 is linearly moved toward the box 34 along the guide member 67 by a known means as shown in FIG. Therefore, the unit body 71 and the tray pullout arm 75 both approach the box 34. The neck 77 at the tip of the arm 75 stops the linear movement of the unit 40 when fitted into the opening 66 of the base 32 as shown in FIG. Next, the arm cylinder 69 in the main body 71 is operated to pin the arm 75.
It rotates clockwise around 73 (Fig. 6). Therefore, the neck portion 77 fits into the opening of the rising portion 62. The width dimension (W) of the tip of the neck 77 is smaller than the width (L) of the opening of the base 32, but larger than the width (l) of the opening of the rising portion 62, so that the neck 77 is larger than the rising portion 62.
Will be caught in the opening.

Then, in this state, the drawer unit 40 is separated from the box 34. As the unit 40 moves, the neck 77 pulls out the base 32 from the box 34 as if it were as shown in FIG.

The base 32 pulled out from the box 34 is pulled above the plate member 39 in a direction away from the box 34 while being guided by the guide rails 42 at both ends thereof. At this time, the position regulating unit 38 is the fourth
Since it is in the lower position as shown by the broken line in the figure, it does not hinder the movement of the base 32.

When the base 32 is pulled out to a distance about half the plate member 39, the base 32 collides with the transfer arm 43. At the collision position, the movement of the drawer unit 40 is stopped, and the arm cylinder 69 is operated to separate the neck 77 of the drawer arm 75 from the opening of the base 32.

Next, the cylinder 85 of the transfer arm 43 is operated and the hook 83 is lowered. The lowering of the hook 83 causes the hook to engage with the rising portion 62 of the base 32 as shown in FIG. In this engaged state, the transfer arm 43 is further moved in the direction of separating from the box 34. Therefore, the base 32 is further transported along the guide rail 42.

The transport arm 43 transports the base 32 until the base 32 collides with the stopper 87 fixed to the rearmost portion of the plate member 39.
This position is a position very close to the mounting board 41,
The distance is such that the IC chip mounting machine can grip the chip quickly and securely and easily transfer it to the substrate.

After that, the known IC chip mounting machine carries out the IC 46 to the substrate 41 while the transfer arm 43 holds the base 32, to which the IC tray 48 on which the IC 46 is mounted, is fixed, through the hook 83.

In the present invention, the box set on the table 36
34 keeps the confirmation sensor 82 for detecting the presence or absence of the box 34 in the “OFF” state until the moment it is placed on the table 36. When the box 34 is placed on the table 36, the IC tray supply body 44
Both the IC chip-equipped machine (however, the IC chip-equipped machine is only the communication section with the main body 44), the OFF LINE state changes to the READY state. Next, even if the main body 44 is in the operating state, the stopper fixed to the IC tray storage box 34, that is, the IC tray position regulation plate / storage box presence / absence confirmation sensor detection plate 70, can be loosened by the set screw 76. By rotating around the pin 72, the sensor 82 can be turned off. By this operation, the storage box moving table 36 can be stopped.
For this reason, if the IC tray storage box becomes insufficient as shown by the dotted line in Fig. 1, this action will cause the IC
It is possible to supplement or replace the IC tray mounting base 32 in the tray storage box 34. Further, since the IC chip mounting machine is OFF LINE only for communication with the table 36, it is possible to take parts only from other supply devices such as a tape-shaped component supply device or a stick-shaped component supply device. Become.

EFFECTS OF THE INVENTION In the present invention, the IC tray supply means is divided into two parts, and the chips can be transported as close as possible to the IC chip mounting machine, so that the mounting tact of the IC chip mounting machine is improved and the mounting machine is downsized. It is possible to improve accuracy and reduce price. Further, since the IC tray storage box stores the IC tray so that it can be pulled out in the horizontal direction, a plurality of IC trays of various types can be compactly stored and any IC tray can be easily taken out.

Even if all the IC trays in the IC tray storage box are exchanged or only one IC tray is exchanged, communication with the IC chip-equipped machine is possible, so the operating time of the IC chip-equipped machine can be improved. It is possible.

Since the IC tray position regulating device is required in the same unit as the IC tray transport unit, the reliability and operability of the device can be improved.

When replacing the IC tray, this IC tray supply device
It is possible to take the OFF LINE state for the IC chip mounted machine, and the storage box moving table does not move during the IC tray exchange, which is extremely safe.

Only one member supports detection of the presence or absence of the IC tray storage box, supply stop operation when the IC tray is replaced, and IC tray position regulation. Therefore, the structure of the device is simple and downsizing of the device is possible. Has been planned.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an IC tray supply device of the present invention, FIG.
The figure shows a state where the IC tray storage box is assembled to the IC tray supply main body, Fig. 3 is an enlarged perspective view of the IC tray position control unit, and Fig. 4 is a diagram showing the operating state of the unit of Fig. 3, FIG. 5 is a view showing the positional relationship between the IC tray drawer unit provided in the IC tray supply body and the IC tray position regulation unit, and FIG. 6 is a side view of the IC tray drawer unit,
FIG. 7 is a diagram showing the operating state of the IC tray pulling unit, FIG. 8 is a diagram showing the positional relationship between the IC tray pulling unit and the transport arm, and FIG. 9 is a diagram showing the operating state of the transport arm, FIG. FIG. 11 is a view showing a state in which a transfer arm transfers an IC chip to the vicinity of an IC mounting board, FIG. 11 is a flow chart of the present invention, FIG. 12 is a view showing a known IC tray mounting machine,
FIG. 13 shows a known IC tray storage box, FIG. 14 shows a known means similar to the IC tray drawer unit of the present invention, and FIG. 15 shows means for moving the IC tray toward the substrate. FIG. 16 and FIG. 16 are views showing another known IC chip mounting machine. Explanation of code 30: IC tray supply device 32: IC tray mounting base 34: IC tray storage box 36: Storage box moving table 38: IC tray position control unit 40: IC tray drawer unit 41: Board, 42: Guide rail 43: Transfer arm, 44: IC tray supply main body 45: Actuating cylinder, 46: IC 48: IC tray, 50: Box 51: IC tray pressing piece, 62: Vertical part 70: Stopper, 71: Unit main body 74: Folding part 75: Tray drawer arm, 77: Neck 81: Main unit, 82: Confirmation sensor

Claims (3)

[Claims] 1. An IC chip mounting device is provided with a predetermined IC from a plurality of various types or a plurality of types of IC trays 48 in which a large number of IC chips 46 are arranged.
In the IC tray supply device 30 that supplies the desired IC tray 48 up to the vicinity of the IC chip mounting device in order to grip the chip 46 and properly mount it on the IC substrate 41, the IC tray storage with the front and rear surfaces open The box 34 is a tray holder 60 in which a plurality of IC trays 48 can be horizontally pulled out and can be stored in a stacked state, and an IC tray 48 on the rear surface.
Has a stopper 70 that prevents the
The IC tray storage box 34, the storage box elevating means 36 and 37 for moving the IC tray storage box up and down in order to position the predetermined IC tray 48 in the IC tray storage box to the pull-out position, and the IC tray supply body 44. The position regulation unit 38 that regulates the position of the IC tray 48 by pressing the predetermined IC tray 48 positioned to the pull-out position against the stopper 70.
And the IC tray drawer unit 40 that pulls out the position-controlled IC tray 48 from the front of the storage box 34, and the IC tray storage box.
An IC having a transfer means 43, 83, 85 for transferring the IC tray 48 pulled out from the 34 to the vicinity of the IC chip mounting device.
An IC tray supply device 30 having a tray supply body 44. 2. A transfer means for moving a transfer arm 43 located below the pulled-out IC tray 48, a hook 83 located above the IC tray 48, and a vertical direction of the hook 83. The IC tray supply device according to claim 1, wherein the IC tray supply device comprises a cylinder 85. 3. The IC tray supply device according to claim 1 or 2, wherein the stopper 70 functions as an operation switch for the IC chip supply body 44.