JP3238922B2 - Handler aligner lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aligner raising device for a handler, and more particularly, to a device for loading or unloading a device to a test site to test the performance of the device. The present invention relates to an aligner elevating device for a handler, which can accurately accommodate a device in a carrier module of a test tray after a raise of the aligner using a drive motor so that a bent of the device does not occur.

[0002]

2. Description of the Related Art In general, devices that have been completely manufactured are:
It is sequentially transferred by a horizontal or vertical handler elevator, and is sequentially loaded on a number of carriers installed in a test tray for testing.

The devices sequentially loaded on the test tray are supplied to a heating chamber set at a predetermined temperature or higher to be tested for performance, heated at a high temperature, and electrically contacted with a test unit at a test site. The performance of the device will be tested.

The devices tested by the test unit according to the above process are classified into grades according to the test results, and the classified devices are put into test trays according to the grades, and are returned to a non-defective product according to the presence or absence of an error by the tester. Good devices are shipped, and defective devices are discarded. At this time, the device supplied from the elevator of the loading unit is placed in a test tray and raised, and when the tray is positioned at the highest height of the elevator, the tray transfer moves upward to take the tray and load each of the trays. Position.

On the other hand, each device put in the tray moved by the tray transfer is sucked by a picker and moved to a heating chamber, and the devices are aligned during the movement.

In order to align the devices, each buffer (bubble) is picked up by a picker after sucking each device.
After the devices are loaded, each device is sucked by a picker and supplied to an exchanger. The exchanger is provided with an aligner for placing the device moved by the picker at an accurate position, and the position of the device is set by the raising operation of the aligner.

[0007] The raising operation of the aligner as described above is performed by two operations for stably and accurately putting the device into the test tray. First, there are two operations: a long-up operation in which the body of the exchanger rises, and a short-up operation in which the aligner of the exchanger rises to accurately seat the device. Will be

[0008] The long-up operation and the short-up operation of the aligner are performed by two cylinders installed in the exchanger, respectively. That is, the two cylinders installed on both sides of the exchanger change the body of the exchanger to a constant stroke (strok
e) After moving up to the predetermined position by moving to
Again, the two cylinders raise the aligner secondarily so that devices seated on top of the aligner can be accurately loaded on the test tray.

[0009]

However, there is a problem that a loud noise is generated at the time of the long-up operation and the short-up operation by the cylinder and the device is bent. In addition, when two cylinders are installed and operated, the device depends on the stroke of the cylinders, so that the device is detached or damaged during a short-up operation of loading the devices, thereby increasing the error rate of the devices. There is a point.

It is an object of the present invention to provide a handler aligner elevating device which can prevent detachment and breakage during loading of devices and can reduce the size of the exchanger.

Another object of the present invention is to provide a handler aligner which can perform a long and short-up operation of an aligner accurately and quickly, thereby speeding up a performance test operation of a device and improving productivity. To provide a lifting device.

[0012]

According to the present invention, an aligner raising device for a handler according to the present invention includes a base plate, a lower fixed block installed on an upper portion of the base plate, and linear movements (linear motors) installed on both sides of the lower fixed block.
n) A support plate having a guide, a side fixing plate installed between the support plate and the lower fixing block, and an elasticity inserted and installed on a guide pin fixed by fixing means on the upper and lower portions of the side fixing plate. Means, an aligner having an upper and lower aligner block, a plurality of suction means installed at a lower portion of the aligner, for taking a device, and a driving means for raising the aligner,
Consists of

[0013]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. As shown in FIG. 1, a lower fixing block 58 is fixed to an upper portion of a base plate 10 of an exchanger 102, and a support plate 14 having a linear motion guide 60 is vertically disposed on both sides of the lower fixing block 58. Will be installed.

The side fixing plates 12 are respectively installed on the left and right sides between the lower fixing block 58 and the support plate 14, and can move up and down along the linear motion guide 60. A spring 52 is inserted into one side of the side fixing plate 12 and fixed by the guide pin 20. The spring 52 is configured to move the fixed plate 12 integrally with a predetermined strength.

As shown in FIGS. 1 and 2, a pair of guide pins 18 are fixed to the lower fixing block 58 at a predetermined interval, and a pair of support bases 36 are installed on the upper side thereof. Is done.

An aligner 44 having a lower aligner block 42 and an upper aligner block 48 is installed above the side fixing plate 12. The left and right ends of the aligner 44 are fixed to the side fixing plate 12 by adjusting pins 50 inserted into the through holes 49. The upper aligner block 48 is fixed to the lower aligner block 4 by the fixing means 46.
Fixed to 2. Further, the upper aligner block 48 includes a plurality of position confirmation pins (not shown).

The lower aligner block 42 has a structure shown in FIG.
As shown in FIG. 5, a predetermined air hole 56 is formed, and a suction means 104 communicating with the air hole 56 and sucking an electronic component (not shown) is provided. The adsorption means 10
4 includes a cylinder 58 installed in the lower aligner block 42 and a nozzle 54 installed above an air hole 56 connected to the cylinder 58. The nozzle 5
4 has an air hole 56 formed therein.
An O-ring 18 is fitted and installed on a portion in contact with a lower surface of a micro BGA (μ-BGA) block (not shown).

Therefore, after being positioned on the test tray 100, the aligner 44 moves upward while the micro BGA
By pressing the micro BGA element in contact with the lower surface (not shown), the micro BGA element is put into the test tray 100. The nozzle 54 stably fixes the element seated on the micro BGA so that it does not come off by being sucked under the micro BGA under vacuum, and determines the presence or absence of the element based on the strength of the air pressure passing through the air hole 56. I do.

A driving means for raising the aligner 44 is provided between the cylinder 58 and the base plate 10. That is, the driving motor 22 is installed vertically above the base plate 10, and the first pulley 24 is installed at the lower end of the driving motor 22 protruding below the base plate 10.

A ball screw 34 is inserted into upper and lower ball screw nuts 32 and 30 at a predetermined distance on the upper right side of the drive motor 22. A second pulley 26 is provided at a lower end of the ball screw 34. As shown in FIGS. 1 and 2, a belt 28 hangs on the first pulley 24 of the drive motor 22,
The other side of the belt 28 is wound around the pulley 26, and is installed so that the rotation force is transmitted to the ball screw 34 by the first pulley 24 that has been rotated by the drive motor 22.
In FIG. 1, reference numeral 100 denotes a test tray.

According to the present invention constructed as described above, a single drive motor 22 can be used to perform a long-up operation in which the side fixing plate 12 and the aligner 44 installed above the base plate 10 are raised by a certain distance. it can. That is, the drive motor 22 operates and the first pulley 24
Is rotated, the torque is transmitted to the second pulley 26 via the belt 28 wound around the first pulley 24, and the rotational force is simultaneously transmitted to the ball screw 34.

When the ball screw 34 rotates,
The spring 52, the support base 36, and the aligner 44, which integrally fix the lower fixing block 58 and the side fixing plate 12, are simultaneously raised (long-up).

When the aligner 44 is continuously moved up to a predetermined distance or more, the lower fixing block 58 fixed by the strength of the spring 52 and the side fixing plate 12 stop while pushing up the aligner 44. At the same time, only the aligner 44 is raised while the side fixing plate 12 gradually and elastically compresses the spring 52 (short-up).

[0024] A fixing pin 50 fixed to both side portions fixing pin hole 4 of the aligner 44 during the short-up operation
9 , the nozzle 54 (see FIG. 3) installed in the aligner 44 confirms the presence or absence of the device and sucks it, thereby preventing the device from shaking and bending.

The aligner elevating device thus configured is very small, and can prevent the device from shaking and bending, and can also prevent noise during short-up operation.

[0026]

As described above, the aligner lifting device according to the present invention uses a drive motor without using a large number of cylinders, thereby reducing the size of equipment and preventing the device from swaying and bending. There is an effect that noise can be prevented during a short-up operation.

Further, the nozzle structure of the aligner according to the present invention has an effect that the test operation can be performed quickly and accurately by preventing breakage of the element and easily determining the presence or absence of the element.

[Brief description of the drawings]

FIG. 1 is a front view showing an aligner lifting device according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view in which a part of FIG. 1 is cut away.

FIG. 3 is a partially enlarged view of an aligner elevating device according to a preferred embodiment of the present invention.

[Explanation of symbols]

 10: Base plate 12: Side fixing plate 14: Support plate 16: Second plate 18: Guide pin 20: Fixing means 22: Drive motor 24: First pulley 26: Second pulley 28: Belt 30, 32: Ball screw nut 34 : Ball screw 44: Aligner 54: Nozzle 58: Cylinder 100: Test tray

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G01R 31/26 G01R 31/28

Claims (3)

(57) [Claims] 1. A handler for causing loading / unloading device on the test tray Ekusuchi
In changer, a base plate, a lower fixed block that is placed on top of the base plate, is placed vertically on opposite sides of the lower fixed block, and the support plate having a linear motion guide, along the linear motion guide predetermined In the direction of
Between the lower fixed block and the support plate
Installed and has guide pins with springs inserted
A pair of side fixed plates, and aligner having upper and lower aligner block is installed in the lower portion of the aligner is configured with a plurality of suction means for taking device, from a driving means for raising said aligner , The aligner, when the drive means operates,
The screw rotates and the lower fixing block and side fixing
It is raised together with the support that fixes the rate
When it reaches the specified position after being raised by the specified distance,
The spring is elastically compressed to raise the liner only
Aligner increases device handler characterized in that it is. 2. The suction device according to claim 1, wherein the suction means is provided on a lower aligner block.
Is installed, the cylinder air holes are formed, said sheet
A nozzle connected to the air hole of the cylinder, and the nozzle
The aligner raising device of claim 1, further comprising: an O-ring installed on an upper portion of the OPC to support the micro BGA block. 3. The driving means includes: a driving motor installed on a base plate; a first pulley connected to the driving motor; and a driving motor installed corresponding to the driving motor and rotated by a ball screw nut. And a second pulley installed at the lower end of the ball screw, one of which is fitted to the first pulley and the other is fitted to the second pulley and installed to rotate the ball screw. The aligner elevating device for a handler according to claim 1, further comprising: a belt provided.