KR20000067263A - sorting picker with function for transjerring tray of sorting handler in Burn-In tester - Google Patents

Abstract

PURPOSE: A sorting picker with a tray transfer function for burn-in tester sorting handler is provided to drive continuously an equipment without exchanging a tray of a sorting portion. CONSTITUTION: A sorting picker with a tray transfer function for burn-in tester sorting handler comprises an installing plate(17), an elevating block(18), a guide member(20), a driving portion, and a holding portion. The installing plate is moved along X-Y axis. The elevating block is installed on the installing plate. The guide member is installed between the installing plate and the elevating block. The driving portion is installed at the installing plate in order to elevate the elevating block within a predetermined range. The holding portion holds an empty tray within a loading stacker.

Description

Sorting picker with function for transjerring tray of sorting handler in Burn-In tester}

The present invention relates to a burn-in tester sorting handler used when testing electrical characteristics of a finished device. More specifically, the present invention relates to a burn-in tester sorting handler. Even if the sorting device is filled in the tray of the sorting part, the tray transfer function for the sorting handler for burn-in testers can be supplied to the sorting part by sequentially holding empty trays in the stacking stacker without replacing the tray from the sorting part. A sorting picker having a.

1 is a plan view showing the configuration of a sorting handler for a burn-in tester according to the related art, and FIG. 2 is a schematic view for explaining the operation of the conveying means in the sorting handler for the burn-in tester according to the related art.

The burn-in board loader part 2 and the unloader part 3 are provided in the upper side of the main body 1, and the DC reject part 4, the tray loader part 5, and the DC test part 6 at one side thereof are installed. Y table 8 is provided with a turn return device portion 7 that rotates 90 ° on one side of the bottom surface, and an empty pocket portion 9 and a tray unloader portion 10 and sorting on one side thereof. The unit 11 is provided in order.

In addition, the upper part of the DC reject part 4, the tray loader part 5, and the DC test part 6 is provided with the first tool 12 which is operated left, right, up, and down by a sub-motor. On the upper side of the Y table 8 in which the 6 and the turn return device portion 7 are provided, the second tool 13 that is operated between the gaps is provided.

In addition, a third tool 14 that is operated between the gaps is provided at the upper portion of the Y table 8, the empty pocket portion 9, and the tray unloader portion 10, and the empty pocket portion 9 and the sorting portion ( On the upper side of 11), the fourth tool 15 which is operated between the gaps is provided.

Therefore, the tray filled with the device to be burned-in is placed in the tray loader part 5, and then the burn-in board with the burned-in tested device is inserted into the test socket in the burn-in board loader part 2.

In addition, after the burn-in test or the DC test, the tray unloader unit 10 and the sorting unit 11 respectively place an empty tray for containing devices classified by grades.

In this state, if the burn-in board is located in the burn-in board loader unit 2, the burn-in board is located on the rotating plate (not shown) installed at the top of the Y table 8, and is coupled to the connector of the handler. It is conveyed to the Y table 8, and rotated 90 degrees by the turn return device part 7.

As described above, when the rotating plate rotates by 90 °, the ball screw is rotated by the sub-motor, so that the Y table 8 moves to the process line where the tools 12, 13, 14 operate. .

Therefore, the four devices plugged into the test socket of the burn-in board after the burn-in test are taken out at the same time by the tool No. 3 installed on the upper side, and the empty pocket part 9 or the tray unloader part 10 according to the grade. ), And the device determined to be defective is classified by grade by tool No. 4 (15) and transferred from the empty pocket portion 9 to the sorting portion 11.

On the other hand, when the burn-in tested device inserted into the test socket of the burn-in board exits as described above, the first tool 12 operates four devices in the tray of the loader unit and transfers them to the DC test unit 6. The DC test is performed, and the device which was previously in the DC test unit is inserted into the test socket on the burn-in board by the tool 2 (13).

That is, the device that is plugged into the test socket of the burn-in board is the burn-in test is completed, and is transported and classified by the tool 3 and the tool 15 by the grade, the tool 3 and the tool 4 (15) When the device is pulled out of the test socket by 1), tools 1 and 2 (13) are operated in the empty space to insert another device to be tested again.

However, this conventional sorting handler is configured to stop the operation of the equipment when the device is filled in the tray located in the sorting unit 11 in a continuous operation and to notify the operator by buzzer sound, so that the operator from the sorting unit Since the operation can be carried out only if the replacement is given, there was a problem that the operation rate of the expensive equipment is lowered due to the suspension of the equipment due to the replacement of the tray.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem in the related art, and includes a transfer picker for transporting an empty tray in a stacking stacker to a sorting picker for sorting the device to the sorting side according to the test result, and thus the device in the tray on the sorting part. Even if is filled, the operator can continue the operation without replacing the tray from the sorting unit by maximizing the operation rate of the equipment is aimed.

According to an aspect of the present invention for achieving the above object, there is provided a sorting unit for sorting and sorting the devices determined as defective by burn-in test or DC test result, and a sorting pick to transfer the defective device to the tray of the sorting unit on the upper side of the sorting unit A sorting handler for a burn-in tester, in which a beaker is installed to be movable along an X-Y axis, comprising: a mounting plate moving along an X-Y axis, an elevating block mounted on the mounting plate so as to be movable up and down, and between the mounting plate and the elevating block. A guide member for guiding the lifting movement of the lifting block, driving means installed on the mounting plate to move the lifting block within a set range, and a top dead center at the bottom of the lifting block lower than the top dead center of the sorting picker; Consisting of holding means for holding an empty tray in a stacking stacker installed at a position higher than a dot Features are provided pick-growing sorts with a tray transfer function for sorting burn-in tester for a handler.

1 is a plan view showing the configuration of a sorting handler for a conventional burn-in tester

Figure 2 is a schematic diagram for explaining the operation of the transfer means in the sorting handler for a burn-in tester according to the prior art

Figure 3 is a perspective view showing a partially omitted sorting handler for the burn-in tester to which the present invention is applied

Figure 4 is a front view showing the sorting handler for the burn-in tester to which the present invention is applied

5 is a plan view of FIG.

6 is a perspective view showing the main part of the present invention;

7A and 7B are side views of FIG. 6 for explaining the operation of the present invention.

7A is a state where the tray transfer picker is located directly above the empty tray stacking stacker;

7B is a state in which the tray transfer picker descends to the bottom dead center and is connected to an empty tray on an empty tray stacking stacker;

Explanation of symbols for main parts of the drawings

16: X-Y axis 17: mounting plate

18: lifting block 20: guide member

22: sorting unit 23: sorting pickup

25 servomotor 27 ball screw

31: Stacking Stacker 34: Transfer Pickup

48: Sort Picker

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 7.

Figure 6 is a perspective view showing the main portion of the present invention and Figures 7a and 7b is a side view of Figure 6 for explaining the operation of the present invention, the present invention is a mounting plate 17 to move along the X-Y axis (16) The elevating block 18 is provided so that the elevating block 18 can be elevated by the guide member 19 such as the LM guide.

On one side of the elevating block 18, the pitch is varied according to the driving of the driving cylinder 20 and the sorting cylinder 21, and while the elevating movement is performed, the device determined to be defective is held at the sorting position so that the sorting unit 22 The sorting pick-up 23 which sorts into the tray on () is provided.

The lifting block 18 installed on the mounting plate 17 is configured to move up and down within a range set by the driving means. In one embodiment of the present invention, the driving means is mounted to the mounting plate 17 by the bracket 24. A servo motor 25 fixed to generate power, a ball screw 27 rotatably coupled to a connector 26 fixed to one side of the lifting block 18, a shaft of the servo motor 25, and A driving pulley 28 and a driven pulley 29 fixed to the upper end of the ball screw, respectively, and a timing belt 30 wound between the driving pulley and the driven pulley to transfer the power of the servomotor 25 to the ball screw 27. It consists of).

The reason why the servo motor 25 and the ball screw 27 are used instead of the cylinder as the driving means is that the mounting plate 17 is mounted on the X-Y axis 16 so that the mounting plate 17 is upper side. This is because they receive space constraints.

In addition, when the lifting block is located at the top dead center, the bottom end of the lifting block 18 is installed to be lower than the top dead center of the sorting pickup 23 to hold the empty tray 32 in the stacking stack 31. The holding means is provided.

The holding means includes a fixed plate 33 fixed to the end of the elevating block 18, a transfer pickup 34 installed on the fixed plate, an elastic member 35 elastically installed between the fixed plate and the transfer pickup, and the transfer pickup. It consists of the hose 36 which makes a vacuum pressure apply.

The empty tray 32 can be transported even if one transfer pickup 34 is provided on the fixed plate 33. However, the transfer pickup 34 may be moved due to a relatively narrow suction area and a heavy weight due to the limitation of the tray shape. It is preferable to provide more than one.

In FIG. 6 illustrated in the present invention, four transfer pickups 34 are provided.

The transfer pickup 34 is located below the top dead center of the sorting pickup 23 which moves up and down in accordance with the driving of the sorting cylinder 21, and is set to be at a position lower than the bottom dead center.

This is to prevent mutual interference from occurring when the sorting pickup 23 holds the device, or the transfer pickup 34 holds the empty tray 32.

Figure 3 is a perspective view showing a part of the sorting handler for the burn-in tester to which the present invention is applied, Figure 4 is a front view showing a sorting handler for the burn-in tester to which the present invention is applied, Figure 5 is a plan view of FIG.

For reference, the operation of the sorting handler for the burn-in tester to which the present invention is applied is as follows.

First, the loading picker 38 is moved along the X-axis main axis 39 to hold a plurality of devices from the tray while the tray 32a filled with the device to be tested is placed in the loading unit 37. Since 38) loads the device, which is transferred to the DC test unit 40 and is held in the test socket, the DC test of the device to be loaded on the burn-in board 41 is performed for a predetermined time.

After the DC test of the device is performed in the DC test unit 40, the forking and unforking pickers 42 and 43 move simultaneously along the X axis main axis 39 to the right in the drawing, and the forking picker 42 burns in. The device to be loaded into the test socket 44 of the board 40 is held from the DC test unit 40, and the unforking picker 43 holds the device on the burn-in board 41 that has been burn-in tested.

However, if any one of the DC-tested devices has a DC failure, only the un-forking picker 43 is driven while the forking and un-forking pickers 42 and 43 are moved along the X-axis main axis 39. Only the burned-in tested device was removed from the test socket 44 of the burn-in board 41, and the forking picker 42 placed on the loading-side buffer 46 with the slider 45 slightly moved to the right in the drawing. A plurality of finished good devices will be held.

In the above operation, when the DC test unit 40, which has been matched with the loading and unloading positions, is changed to match the sorting position by driving the DC test unit variable means 47 to take out the device in the DC test unit 40. When the sorting picker 48 moves to the sorting position side along the X-Y axis 16 and then simultaneously holds a plurality of devices from the test socket of the DC test unit 40, the device determined as good as a result of the DC test is the loading side. Devices which are unloaded into the buffer 46 and which are defective in DC are sorted in the empty tray 32 of the sorting section 22 according to the grade.

In the above operation, that is, when the sorting pickup 23 is located at the bottom dead center by the driving of the sorting cylinder 21 to hold the device to be sorted, the transfer pickup (because it is located below the transfer pickup 34). No interference with 34) occurs.

On the other hand, when the device to be burned-in test is held in the forking picker 42, and the burner-tested device is held in the unforking picker 43, the forking picker 42 burns when the slider 45 is moved to the left in the drawing. It is located directly above the empty test socket of the board 41, and the unforking picker 43 is located directly above the buffer 49.

Accordingly, the device held by the forking picker 42 is loaded into the test socket 44 of the burn-in board 41, and the device held by the unforking picker 43 is placed in the buffer 49.

After the burn-in tested device is placed on the upper surface of the buffer 49, the device is unloaded into the empty tray of the unloading unit 51 by the unloading picker 50.

When there is a device determined as a bad result of burn-in test among the devices placed in the buffer 49 during the above operation, when the unloading picker 50 holds only the device determined as good quality and moves to the unloading unit 51 side, Since the driving means (not shown) converts the buffer 49, which has been coincident with the unloading position, into the sorting position, the sorting picker 48 moves along the X-Y axis 16, and thus the buffer located at the sorting position. The defective device is held from 49 and then sorted by grade in the empty tray 32 located in the sorting section 22. FIG.

After the defective device is filled in the empty tray 32 positioned in the sorting unit 22 by the continuous operation as described above, the tray in which the device is filled from the sorting unit like the conventional sorting handler is not replaced with the empty tray. The picker 48 moves along the X-Y axis 16 to the upper portion of the empty tray stacking stacker 31 provided on one side of the sorting unit 22, and then transfer pickup 34 provided on one side of the sorting picker. ) Holds one empty tray 32 located at the top of the empty tray stacking stack 31, and then loads the empty tray 32 on the upper surface of the full tray, so that the bad device can be sorted continuously. .

Before the empty tray is stacked on the tray of the sorting unit 22, the sorting tray must be lowered by one step so that the sorting picker 48 can sort the device at the same position of the sorting unit. do.

Hereinafter, the transfer pickup 34 of the present invention loads the empty tray as the device is filled in the tray located on the sorting unit 22 while the empty tray 32 is stored in the empty tray stacking stacker 31. An operation of holding one empty tray from the stacker 31 and transferring it to the sorting side will be described.

First, after a plurality of empty trays 32 are stacked in the empty tray stacking stacker 31, the device on the tray on the sorting unit 22 is filled with the repeated operation of the sorting handler, as shown in FIG. 7A. As the sorting picker 48 moves along the X-Y axis 16 to the upper portion of the empty tray stacking stacker 31, the transfer pickup 34 installed on the sorting picker is placed on the upper side of the empty tray 32. Will be located.

In the above operation, the sorting pickup 23 and the transfer pickup 34 are both located at the top dead center, so the transfer pickup 34 is located at a lower point than the sorting pickup 23.

In this state, when the servo motor 25 is driven to hold the empty tray 32 on the empty tray stacking stack 31, the power of the servo motor is transmitted to the ball screw 27 through the timing belt 30. Therefore, the ball screw coupled to the connector 26 by screwing is rotated, so that the elevating block 18 installed to be elevated on the mounting plate 17 is guided by the guide member 20 to descend to the bottom dead center. do.

When the elevating block 18 descends to the bottom dead center in this way, as shown in FIG. 7B, the uppermost empty tray 32 in which the transfer pickup 34 installed on the fixed plate 33 is stacked on the empty tray stacking stacker 31. Although connected to the upper surface, the sorting pickup 23 is located at the top dead center due to the off operation of the sorting cylinder 21, so that the sorting pickup 23 is at a position higher than the position of the empty tray, so that no operation interference occurs.

As described above, when the lifting pickup 18 descends to the bottom dead center by the drive of the servomotor 25, the transfer pickup 34 is elastic by the elastic member 35 when the transfer pickup 34 falls further than the set range. The lowering of the transfer pickup 34 connected to the upper surface of the empty tray 32 is stopped, and only the elastic member 35 is compressed, thereby preventing damage to the transfer pickup.

Thereafter, when a vacuum pressure is applied to the connection surface between the transfer pickup and the empty tray 32 through the hose 36 connected to the transfer pickup 34, one empty tray 32 in the empty tray stacking stacker 31 is provided. Is held in the transfer pickup 34.

Since one empty tray 32 is held in the transfer pickup 34 by the above-described operation, the lifting block 18 located at the bottom dead center is raised to the top dead center by the reverse driving of the servomotor 25. One empty tray 32 is separated from the empty tray stacking stacker 31.

After the one empty tray 32 is held in the transfer pickup 34, the sorting picker 48 moves horizontally to the sorting unit 22 along the X-Y axis 16. The sorting picker 48 Since the movement of a) is controlled by the control unit, the empty tray 32 held in the transfer pickup 34 is located directly above the tray in which the sorted device is filled.

Subsequently, when the lifting block 18 is lowered to the bottom dead center by the drive of the servomotor 25 and the empty tray 32 held in the transfer pickup 34 is stacked on the tray filled with the sorted device, the transfer pickup 34 After the vacuum pressure applied to the lifter is released, the lifting block 18 is raised to the top dead center so that the empty tray loaded on the empty tray stacking stacker 31 can be continuously transported to another position of the sorting part. do.

As described above, after the transfer pickup 34 holds one empty tray 32 from the empty tray stacking stacker 31 and transports it to the sorting unit 22, the empty tray loaded on the empty tray stacking stacker is removed. Since one step (by the thickness of the empty tray) is raised by the driving means (not shown), the transfer pickup 34 can continue to transport the empty tray to the sorting portion 22 side.

As described above, according to the present invention, the transfer pickup 34 provided on the sorting picker 48 holds the empty tray 32 from the empty tray stacking stacker 31 installed on one side of the sorting unit 22 to sort the portion ( 22) side, so that even if the device is filled in the tray located in the sorting part, the operator can continuously operate the equipment without changing the tray in the sorting part, thereby maximizing the utilization rate of expensive equipment.

Claims (4)

For burn-in tester, a sorting part is provided to sort and classify devices determined as defective by burn-in test or DC test, and a sorting picker for moving the defective device to the tray of the sorting part is movable above the X-Y axis. A sorting handler comprising: a mounting plate moving along an X-Y axis, an elevating block mounted on the mounting plate so as to elevate, and a guide member installed between the mounting plate and the elevating block to guide the elevating motion of the elevating block; Drive means installed on the mounting plate for lifting and lowering the lifting block within the set range, and the top dead center at the lower end of the lifting block is installed so as to be lower than the top dead center of the sorting picker, higher than the bottom dead center, the bin in the stacked stacker Burn-in tester sorting handler, characterized in that the holding means for holding the tray Sorting picker with lancer function. The method of claim 1, The drive means includes a servo motor installed on the mounting plate to generate power, a ball screw rotatably coupled to one side of the lifting block, a drive pulley and a driven pulley fixed to the servo motor shaft and the top of the ball screw, respectively. And a sorting picker having a tray transfer function for a burn-in tester sorting handler, wherein the timing belt is wound between the driving pulley and the driven pulley to transfer the power of the servo motor to the ball screw. The method of claim 1, The holding means comprises a fixed plate fixed to the end of the elevating block, a transfer pickup installed on the fixed plate, an elastic member elastically installed between the fixed plate and the transfer pickup, and a hose to apply vacuum pressure to the transfer pickup. Sorting picker with tray transfer function for burn-in tester sorting handlers. The method of claim 3, wherein A sorting picker having a tray transfer function for a burn-in tester sorting handler, characterized in that a plurality of transfer pickups are provided on a fixed plate.