JPS5975642A - Positioning device for parts - Google Patents

Abstract

PURPOSE:To position the parts regardless of the size of the parts only by providing a pair of positioning means by installing a position detector detecting the quantity of displacement of the part on a cradle to a reference position and a moving means, which moves the part only by the quantity of displacement and conforms the center of the part to the reference position. CONSTITUTION:Pawls 3 for positioning are brought into contact with the opposite side surfaces of an IC pellet 1 to position the pellet. The quantity of the IC pellet 1 displaced to the reference position is measured indirectly by the position detector consisting of a beam irradiator 13, a light-receptor 12 and a position detecting circuit 14 in the direction orthogonal in the direction of advance or retreat of a drive base 4, and a sucking base 2 sucking the IC pellet 1 is slid and positioned. Accordingly, even IC peelets extending over a large size from a small size can be positioned by using the pawls 3 of one kind because they can be positioned by the pawls 3, two thereof are paired, the nose sections of the pawls 3 need not be made small, and the damage of the IC pellets 1 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a component positioning device suitable for the process of die pumping components such as ICC PETZ.

[Technical backbone of the invention 1 When die bonding the 1c bellet 1- to a hybrid IC circuit board or lead frame, it is necessary to
Once Belen 1~ is transferred to the positioning device for accurate positioning, it is placed on the C1 circuit board or lead frame.
-3i:・(Die bonding is performed using the product law or the resin adhesive method.

Conventionally, the positioning device C used in the die bonding process is as shown in FIG.
This suction table 2 is placed around the suction table 2 on which the IC pellet 1 is placed.
Arrange two pairs of positioning claws 3 facing each other in a perpendicular manner 1q-3, and attach the positioning claws 3 to the drive base 4 (G). There is a known structure in which the IC pellet 1 can be moved forward and backward so as to come into contact with the opposite side surface of the IC pellet 1 and to make a gap therebetween.

Incidentally, numeral 5 is a transport pickup that picks up the ICC Benz-1 positioned on the suction stand 2 and transfers it to a C circuit board (not shown) or the like.

Such a positioning device is attached to the suction table 2 to place the IC pellet 11 on the suction table 2, and then the IC pellet is placed on the C suction table 21° by suction from an intake pipe (not shown). ]・1 is sucked μ, and the opposing two-phase 117 determining claws 3 are directed toward the 4 sides of the IC pellet 11 (advance hook 1
The IO pellet 1 is positioned at a predetermined position by bringing the tips of the four positioning claws 3 into contact with the side surface of the ICC vent-1. After that, stop the intake of air from the intake pipe, and transport and pick up the IC pellet 11 on the suction table 2! 5. Transfer it to J ('adsorb and ζ circuit board').

Problem 1 of 1 Back M Technique Flj However, the conventional component positioning device configured in this manner is configured to position two sets of four positioning claws 3 perpendicularly to each other and perform positioning from four directions. When the shape of the IC pellets to be used for positioning changes, the positioning claws 3 corresponding to the dimensions of each ICC pellets 1 are replaced with drive bases 4 (lt). .

Therefore, not only is handling complicated and workability not improved, but also a plurality of types of positioning pawls 3 must be prepared in advance, which has the disadvantage of easily causing an increase in stroke length.

It is also proposed that by making the tips of the four positioning claws 3 smaller, it is possible to position IC pellets from small to dolls using one type of 11'L positioning claw 3. However, if the tip of each positioning claw 3 is made smaller, when positioning the large IC pellet 1, a local force is applied to the side of the IC pellet 1, causing the IC pellet to fall into the ICC pellet. There is a point III where damage such as chipping of 1 is likely to occur and the yield is reduced.

[Objective 1 of the Invention] The present invention has been made to solve the above-mentioned drawbacks of the conventional technology.
It is an object of the present invention to provide a component positioning device that can position the component without changing f140.

[Key Points of the Invention] In order to achieve this object, the present invention provides a pedestal on which components are placed, and a set of pedestals that move forward and backward in order to clamp the components on the pedestal. a positioning means, a position detection device for detecting the amount of deviation of the component on the pedestal with respect to a predetermined position in a direction orthogonal to the forward and backward movement direction of the positioning means; The position detection device moves the pedestal to the deviation 01.
1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) (characterized in that it is) that the above-mentioned parts are moved 1 and 1 that match t<lvi;

“Embodiment 1 of the invention The details of the present invention will be explained with reference to the drawings.

The same reference numerals are given to the parts that are common to the J5 conventional example (=J
? l'.

Figure 2 shows an embodiment of the component positioning device of the present invention.
This is a perspective view showing an example of an ICC Benz as a part. In the figure, a movable table 7 is placed on the base 6 to slide the slider 1-iJ.
It is placed in the function C. This movable base 7 is constructed by fitting support rods 9 provided on the movable base 7+ onto a pair of parallel guide portions 8 spaced apart from each other by C0 steps on the base 6. becomes slidable by moving the guide section 8.

A suction table 2 made of, for example, a glass material and having good translucency is placed on the central side of the movable table 7 at a predetermined distance from the movable table 7 . The medium heat part of this suction table 2 is provided with an intake hole 10 that passes through the shell on the front and back surfaces.
Intake pipe 11 and its intake hole 1 taken out on the side of
The inner wall surface of 0 is in communication with C.

A light receiving device 12 is disposed between the movable table 7 and the suction table 2, and is arranged linearly toward the negative side of the suction table 2 and across the intake hole 10. This light receiving device 12 is composed of linearly arranged transistors, etc.
As will be described later, a configuration is described in which a signal corresponding to the shadow of the IC pellet 1 produced by the light irradiated from the photothermal In device 13 is output.

A transport pickup 5 is mounted above the suction table 2, and a light IJJ device 13 is mounted above the transport pick 2 knob 5, coaxially with the suction hole 10 of the suction table 2 on a support stage (not shown). It is arranged as ζ and -C.

The transport big shifter 5 descends, adsorbs the ICC pellets 1 on the suction table 2, and rises to transfer the IC pellets 1 to an IC circuit board or lead frame (not shown). In addition, the light illumination device 13 is configured to irradiate the suction table 2 with []°C light from a tenth point.

A pair of drive bases 4 are arranged on the movable base 7 so as to sandwich the suction base 2, and a positioning claw 33 is attached to each of the drive bases 14 (=J&) to constitute a positioning means. 3 CAs, blindness of each positioning claw 3 is suction table 2
It becomes possible for the ICC pellets 1 to 1 to come into contact with the opposite side surface.

41'? Remove the determining claw 3 (= J IJ). Interlocking C
As shown by arrow ↑q, the tip of positioning claw 3 is IC pin 1 knot 1
J sandwiching the opposite side of the sea urchin (pinching contact), and also the ICC
The pellets 1 and 1 are arranged in a uniform manner. A position detection circuit 14 is connected to the output end of the light receiving device 12, and a motor 15 is connected to the output end of the position detection circuit 14.
For example, when the intake hole 10 is placed in the reference position, the signal accompanying the shadow of ICC Pez-1 is processed.
The center of C is calculated, the deviation from the center of C is calculated, and a control signal is output.

The motor 15 converts the operating axis 16 into minute forward and backward movements in the forward direction in response to a control signal associated with the one-place quantity from the position detection circuit 14. The operation @16 is performed by screwing into the brackets 1 to 17 provided on the surface of the moving table 7F.

The operating axis 16 and the kite section 8 are arranged in parallel,
The motor 15 operates according to the control signal from the position detection circuit 14.
slides.

Next, the operation of the positioning device configured as described above will be explained.

First, place the IC pellet 1 on the suction table 2 in a position where the intake hole 10 is hidden, and suck air (10 pellets) into the suction table 2 through the intake pipe 10'c. Let's go.

Next, operate the opposing drive stand 4 and move the positioning claw 3 to the opposite side surface of the sample plate 1 on the suction table 2 (jU contact μ, Ic plate 1 to the opposite side surface of 1) The positioning claws 3 are sandwiched between them.

1i (=attached, opposing degrees) If the positioning pawl 3 is shifted to the opposite side of the IC bevel 1 by a predetermined ratio, the IC bevel I notch 1 will be in the forward/backward movement direction of the drive base 4. It will be located at a predetermined position.

At the same time, the light is emitted from the photothermal device 13, and the light receiving device 12 is used to move a direction perpendicular to the forward and backward movement direction of the C drive base 4.
The shading of ICC PETZ-1 at 31J is measured and converted into an electrical signal, which is then processed by the C position U detection circuit 140.

(r/it'? Detection circuit 14 k: d3 (,N'
(7) Process the signal associated with the shadow and transfer the center of 1 to CIC Perez 1 (9i L/
, an electrical signal corresponding to the amount of the center of the IC pellet 1 relative to the intake hole 10 is outputted to the motor 15 as a control signal. The motor 15 rotates the C operation shaft 16 forward and backward in response to a control signal, and the movable table 7 moves forward or backward and slides.

As a result, the IC pellets 1 to 1 on the suction stand 2'2 are also aligned with the reference position C in the direction orthogonal to the forward and backward movement direction of the drive stand 4, and the positioning of the IC pellet 1 is completed. .

When the positioning of IC pellet 1 is completed, the intake vibe 1
Avoid stopping the intake of 1, and lower the 110 feed pick-up 5! 'U I C pellet 1 is adsorbed, -C is lifted, and transferred to a circuit board, etc.

In this way, the component positioning device of the present invention is configured such that the positioning claw 3 is brought into contact with the opposing side surface of the ICC PET and the positioning claw 3 is positioned. In the direction perpendicular to the forward and backward movement direction of the platform 4, the ICC pellet 1 is indirectly vibrated against the reference position by a position detection circuit consisting of a photothermal device 13, a light receiving device 13, and a position detection circuit 14. Measure the position, I
By sliding the suction table 2 that has adsorbed the CC PETZ-1, the position is determined.

Therefore, instead of using the conventional four positioning claws 33, the two-phase positioning claws 3 can be
Since it is possible to position the pellet-1, use the positioning claw 3 for positioning one type of 1m position from the small to the doll's ICC Pez. Since there is no need to reduce the size of the tip, it is possible to prevent the loss 11 of ICC PETZ~1.

In addition, in the embodiment of -1-)E, a3-(A) is a position detection device that detects the amount of deviation of the IC pellet 1 with respect to the reference position, and includes a light illumination device 13, a light receiving device 12a3, and a position detection device. Although we have explained an example of the configuration using the circuit 1/l, a large number of independent sensing electrodes are formed on the contact surface of the suction table 2 with the ICC PET-1, and the ICC PET-1 is placed at 14 positions. J
A configuration is also possible in which the position detection circuit 14 processes the electric number 16 according to the shape of the electric wire.

In carrying out the present invention, the present invention is not limited to the ICC PET-1 mentioned above, but can be widely applied to the positioning of electronic components and other general components.

[Effects of the Invention 1] As explained above, the component positioning device of the present invention includes a set of positioning means that moves forward and backward in order to be able to clamp the components. Then, detect the amount of deviation of the component on the pedestal with respect to the predetermined position C in a direction perpendicular to the forward and backward movement direction of the positioning means.
- a position detecting device d, and a moving means for moving the pedestal by the amount of deviation using the position detecting device, and aligning the center of the component with the reference position, so that the positioning claw etc. C
Parts can be placed (i'!).

Further, since there is no need to downsize the tip of the positioning means, it is possible to prevent damage to the C part when positioning the parts of the doll.

Furthermore, in the direction perpendicular to the direction of movement of the positioning means, the positioning efficiency can be improved because positioning can be performed more quickly than the positioning means J.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional parts positioning device, and Fig. 2 is a perspective view of an embodiment of the parts positioning device of the present invention.・・・・Parts (IC pellet) 2・
......... Suction table 3 ...... Positioning means (positioning claw) 4 ...... Drive table 5・・・・・・・・・・・・1 General pick up 6...
......Base 7...Movement table 8...Guide section 9... ...Support rod 11...Intake pipe 12...
・・・・・・・・・Position 1r A detection device (light receiving device) 13・
......Position detection device (light irradiation device) 1
/l・・・・・・・・・Position detecting device (position detecting device) 15・・・・・・・・・・・・Transportation means (motor) attorney Patent attorney Jusuyama Buddha - 1st Figure (mi)

Claims (2)

[Claims] (1) A pedestal on which a component is placed, a one-phase positioning means that moves forward and backward in a U direction so that the component on the pedestal can be clamped, and an I-phase positioning device that moves orthogonally to the direction of movement of this positioning means. A3 in the direction (
A position detection device that detects the amount of deviation of the component on the pedestal with respect to a predetermined IQ position is used to detect the deviation of the component on the pedestal. [Moving means for moving the part to align the part with the reference position;
A positioning device for covering parts. (2) The pedestal is made of a material with good translucency, and the position detection device is provided with a light irradiation device and a light receiving device installed oppositely to hold the pedestal, and the pedestal is made of a material with good translucency. The positioning of a component according to claim 1, characterized in that it is configured to detect the amount of deviation from the shadow of the component on the pedestal detected by the light receiving device! ! i
same.