KR19990080213A - Grade device unloading device of horizontal handler - Google Patents

Abstract

The present invention relates to a device for unloading device according to the grade of the horizontal handler for unloading in the customer tray for each grade according to the test result after completing the test of the device suspended on the carrier module of the test tray 1 It is possible to reduce the size of equipment drastically because it can classify defective products by class and store them in customer tray even if they have only one place.

To this end, in the transfer 7 is to hold the customer tray (3) to be transported on the stage of the unloading portion, the guide plate 13 is formed vertically cut guide groove 13 is provided in the unloader portion ), A plurality of stacking plates 15 installed to be movable up and down along the guide grooves of the guide plate, and driving means fixed to a stacking plate located at the lowermost of the stacking plates to simultaneously lift and lower the entire stacking plate; A stopper means installed on the guide plate 13 so as to be located above the top dead center of the transfer 7 to support the loading plate 15, and an ID displayed near the stopper means and displayed on the loading plate 15; The sensor 23 for detecting the 22 and the corresponding loading plate 15 on which the customer tray 3 is mounted detects the transfer tray 15 so as to hold the customer tray 3 mounted on the loading plate 15. It consists of a loading plate detection means to make the equipment compact. It is possible to operate as well as to reduce the cost of manufacturing the equipment.

Description

Grade device unloading device of horizontal handler

The present invention relates to a horizontal handler for horizontally transferring a device to test the performance of the device. More specifically, after completing the test of the device suspended from the carrier module of the test tray, the customer tray is classified according to the test result. The present invention relates to a device unloading device according to a grade of a horizontal handler which is unloaded within.

In general, the devices produced in the manufacturing process are sequentially transferred by horizontal or vertical handlers, classified as good or bad according to the test result of the tester, and the good is shipped, and the bad is discarded.

The unloader part of the handler which sequentially transfers the devices is provided with a plurality of stackers on which a customer tray containing devices classified according to grades is placed according to test results.

In particular, the defective goods are put in different customer trays according to the cause of the defect to identify the cause of the defect.

FIG. 1 is a vertical cross-sectional view showing a conventional apparatus, and FIG. 2 is a side view showing a portion of FIG. 1 in cross section, wherein the customer tray 3 is placed inside a plurality of stackers 2 installed in the unloading portion 1. Elevator plate 4 which raises by one (1 customer tray height) is provided so that it may elevate according to the drive of a linear motor (not shown), and the side plate 5 provided in the back of the elevator plate 4 The transfer 7 for holding the customer trays 3 located on the unloader unit one by one and placing them on the seating plate 6 or holding the customer trays placed on the seating plate and placing them inside the stacker 2 is a horizontal LM. It is installed to be movable horizontally along the guide (8), the transfer is moved up and down by the first cylinder (9).

The seating plate 6 on which the customer tray 3 is placed and exposed upward through the through hole 1a of the unloader unit 1 is fixed in a cantilever shape to the rod of the second cylinder 10 as shown in FIG. 2. Ascend and descend.

Therefore, when a plurality of empty customer trays 3 are stacked in the stacker 2 of the unloader unit 1 in order to classify the tested devices by class, the uppermost customer trays loaded in the stacker 2 ( Until the 3) is detected, the elevator plate 4 is raised by driving the linear motor and the driving of the linear motor is stopped.

Thus, after the elevator plate 4 is raised until the uppermost customer tray 3 loaded on the stacker 2 is detected by the sensor 11, the transfer 7 fixed to the side plate 5 is removed. It is conveyed to the upper part of the customer tray 3 mounted in the stacker 2 along the horizontal LM guide 8.

In the above operation, the transfer 7 is positioned at the top dead center as shown on the left side of FIG. 1 by the first cylinder 9, and a seating plate fixed in a cantilever shape to the rod of the second cylinder 10 ( 6) is in close contact with the bottom surface of the unloader 1 as shown by the dashed-dotted line on the right side of FIG. 1 and FIG. 2 so as not to cause mutual interference.

In this state, the transfer 7 transferred to the upper portion of the customer tray 3 has a customer tray having a sensor 11 fixed to the transfer at the top of the stacker 2 driven by the first cylinder 9. It will descend until it senses (3).

After the lowered transfer 7 holds the uppermost customer tray 3, the first cylinder 9 is driven to raise the transfer 7 to the top dead center, so that the separation operation of the customer tray is completed.

In this way, once one of the customer trays 3 of the plurality of customer trays placed on the stacker 2 is separated, the transfer 7 does not cause interference on one side along the horizontal LM guide 8. And the second cylinder 10 fixed to the support plate 12 is driven at the same time, thereby lowering the seating plate 6 which is in close contact with the bottom surface of the unloader 1.

When the seating plate 6 reaches the bottom dead center, the transfer 7, which has been moved to one side, moves to the upper portion of the seating plate 6 again and is lowered by the driving of the first cylinder 9 and the customer tray 3. Since the holding state of the) is released, the empty customer tray is placed on the seating plate (6).

After the empty customer tray is placed on the seating plate 6 by the above-described operation, the transfer 7 rises to the top dead center again by driving of the first cylinder 9 and at the same time, when the seating plate 6 is raised, It is moved to one side along the horizontal LM guide (8) so as not to cause.

As described above, when the transfer 7 removes one customer tray 3 from the stacker 2 and places it on the seating plate 6 and moves to one side, the seating plate 6 is driven by the driving of the second cylinder 10. Since it rises up to the top dead center, the empty customer tray 3 is exposed to the upper side of the unloader unit 1 through the through hole 1a, and is classified according to the test result and waits in the buffer (not shown). The pickup means holds the plurality of elements that were present and is placed on the customer tray 3.

However, such a conventional apparatus has a problem in that the equipment becomes larger than necessary because the stacker 2 of the unloader part which classifies and stores the elements according to the test result is provided.

This is because, even in the case of a good quality device, it should be classified and contained in the customer tray 3 according to the grade, but even in the case of a defective product, it must be classified in different customer trays for each cause in order to retest and identify the cause of the failure.

However, in recent years, even though the yield of the device is improved and the quantity of defective products is significantly reduced compared to the good products, a large number of stackers must be separately provided to classify the defective products, thereby inevitably increasing the equipment. .

The present invention has been made in order to solve such a problem in the prior art, so that even if there is only one stacker to classify and store defective products can be classified into grades to be contained in the customer tray, greatly reducing the size of the equipment The purpose is to make it possible.

Still another object of the present invention is to be able to load a plurality of customer trays on a loading plate.

According to an aspect of the present invention for achieving the above object, the transfer is to hold the customer tray and to be transported on the stage of the unloading portion, the guide plate is formed vertically cut and the guide plate installed in the unloader portion and And a plurality of stacking plates installed to be elevated along the guide grooves of the guide plate, driving means fixed to a stacking plate positioned at the lowermost of the stacking plates, and simultaneously lifting the entire stacking plate, and a top dead center of the transfer. A stopper means installed on the guide plate to be located on the upper side to support the loading plate, a sensor installed near the stopper means to detect the ID displayed on the loading plate to control the driving of the motor, and a corresponding tray on which the customer tray is placed. Horizontal, consisting of loading plate detection means for detecting trials and allowing transfers to hold customer trays placed on the loading plate A rating element of the unloading device handler is provided.

Figure 1 is a longitudinal cross-sectional view showing a conventional device

Figure 2 is a side view showing a part of Figure 1 in cross section

Figure 3 is a front view showing the configuration of the present invention

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B of FIG.

Explanation of symbols for main parts of the drawings

6: seating plate 7: transfer

13: guide plate 14: guide groove

15: loading plate 20: motor

21: fixed block 22: ID

23, 32: sensor 25: stopper

26: cylinder 29: protrusion

30: space part

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 5 as an embodiment.

Figure 3 is a front view showing the configuration of the present invention, Figure 4 is a cross-sectional view taken along the line A-A of Figure 3, Figure 5 is a cross-sectional view taken along the line B-B of Figure 3, the present invention transfers along the horizontal LM guide 8 A guide plate 13 having a guide groove 14 elongated in the vertical direction is provided on the transport path of the guide plate 7, and the guide plate 13 has a plurality of stacking plates 15 which can be elevated along the guide groove 14. Is installed, the plurality of stacking plate is guided by the guide plate 13 and the LM guide 16 fixed to the stacking plate, respectively, to move up and down.

A guide pin 17 for guiding the position of the customer tray 3 is fixed to the four corners on the upper surface of the loading plate 15, as in the conventional elevator plate 4 or the seating plate 6.

The mounting plate 15 is moved up and down along the guide groove 14 by the drive means, the drive means is a pair of pulleys (18a) (18b) installed in close proximity to the guide groove (14) of the guide plate (13). ), A timing belt 19 wound around the pulley, a motor 20 connected to one of the pulley shafts of the pair of pulleys to rotate the pulley, and one end is fixed on the timing belt and the other end is the lowest. It consists of the fixed block 21 fixed to the loading board located in a room.

However, the rod of the cylinder may be fixed to the stationary block 21 fixed to the loading plate located at the lowermost position so that the loading plate 15 may be elevated according to the driving of the cylinder.

A stopper means for supporting the loading plate 15 is provided on the guide plate 13 located above the top dead center of the transfer 7, and the ID 22 displayed on the loading plate is located at a position close to the stopper means. The sensor 23 which detects this is provided.

In one embodiment of the present invention, the stopper means is installed on the guide plate 13 so as to be rotatable about the shaft 24, and one end thereof is located close to the guide groove 14, and once the external force is not applied. A stopper 25 positioned on the guide groove 14 to control the lowering of the loading plate 15 and a guide plate 13 mounted on the guide plate 13 so that a rod is connected to the other end of the stopper. A cylinder 26 for disengaging the other end of the stopper located at the guide groove and the guide plate 13 and the stopper 25 to reduce the stopper to an initial state when the cylinder 26 is turned off. It is composed of an elastic member 27, such as a coil spring.

One end of the stopper 25 is provided with a bearing 28 so that the rod of the cylinder 26 is connected to the bearing.

This is to minimize the frictional resistance with the stopper 25 when the cylinder 26 is driven.

In addition, on each stacking plate 15 on which the customer tray 3 is placed, a projection piece 29 is formed, which is fitted into the guide groove 14 of the guide plate 13 so that the bottom surface thereof extends over the stopper 25. The space part 30 is formed below the protrusion piece 29 so that the stopper 25 may be located.

On the other hand, between the transfer 7 and the stopper means, there is a loading plate detection means for detecting the corresponding loading plate 15 on which the customer tray 3 is placed so as to hold the transfer tray 7 on the loading plate. In one embodiment of the present invention as the detecting means, the bracket 31 is positioned at the point where the transfer 7 detects the uppermost customer tray 3 mounted on the loading plate 15 exposed downward of the transfer. The bracket 31 is fixed to a sensor 32 that detects the customer tray 3 located on the uppermost side when the mounting plate 15 is raised or lowered by the driving means.

Referring to the operation of the present invention configured as described above is as follows.

First, as shown in FIG. 5, a plurality of stacking plates 15 are installed to overlap each other, and the device is tested in a state where the customer tray 3 is placed on the upper surface of each stacking plate.

For example, a defective product caused by "A" in the customer tray 3 mounted on the uppermost loading plate among the plurality of loading plates 15, and "B" in the customer tray on the loading plate which are sequentially located below. Assume that the defective items caused by "C" --- are contained one after another.

Therefore, when the defective device, which is caused by "A", is moved into the buffer in order as the device which is determined to be defective according to the test of the device is sequentially transferred to the buffer (not shown), the stacking plate placed on the uppermost side (15 The customer tray 3) is held by the transfer 7 and transferred onto the unloading stage to contain the element filled in the buffer in the customer tray 3.

At this time, the central processing unit (CPU) issues a command to transfer the customer tray 3 mounted on the loading plate 15 located on the uppermost side to the unloading stage by the initially set program.

To this end, when the motor 20, which is a driving means, is driven to rotate the pulley 18a, the fixed block 21 fixed to the timing belt is fixed to the loading plate 15 positioned at the lower side, so that the whole is closely contacted. The loading plate 15 is guided to the LM guide 16 to rise at the same time.

Accordingly, when the sensor 32 fixed to the bracket 31 detects the customer tray 3 mounted on the uppermost mounting plate 15, the driving of the motor 20 is stopped and the transfer 7 is horizontal LM. After being transferred to the upper portion of the loading plate 15 along the guide 16, the lowering is driven by the driving of the first cylinder 9 to hold the customer tray 3 placed on the loading plate 15 and then rise again. do.

At this time, the seating plate 6 exposing the customer tray 3 on the unloading stage is located at the bottom dead center by the driving of the second cylinder 10.

After the transfer 7 holds the customer tray 3 mounted on the top loading plate 15 in the above-described operation, the transfer 7 is placed directly on the seating plate 6 located at the bottom dead center. It is conveyed to the upper side.

Thereafter, the transfer 7 lowers and holds the customer tray 3 which is lowered and held by the driving of the first cylinder 9 on the seating plate 6 and then moves to one side so that no interference occurs when the seating plate is raised. Since it moves, the customer tray placed on the seating plate 6 is exposed on the unloading stage. Accordingly, the adsorption means adsorbs a plurality of defective products caused by "A" in the buffer to be contained in the customer tray 3. do.

On the other hand, if the defective product caused by "C" differs from the buffer in accordance with the test of the device which is continued after the above-described operation, the customer tray 3 placed on the loading plate 15 located at the third position from the upper side is as described above. The operation must be exposed on the unloading stage, as described below.

First, the customer tray 3, which has been placed on the seating plate 6 and exposed on the unloading stage, needs to be transferred back to the top loading plate 15.

Contrary to the above, the second cylinder 10 is driven to lower the seating plate 6 to the bottom dead center, and the transfer 7 which has moved to one side so that interference does not occur when the seating plate is raised and lowered again is It is conveyed upward and lowered by the driving of the first cylinder 9 to hold the customer tray 3 and then to the initial state.

Thereafter, the transfer 7 holding the customer tray 3 transfers the holding tray on the upper surface of the loading plate 15, which is transferred to and held on the loading plate 15. At this time, the loading plate 15 Since the plurality of guide pins 17 are fixed to the upper surface of the customer tray is placed on the correct position of the mounting plate.

After the customer tray 3 exposed on the unloading stage is placed on the loading plate 15, the motor 20 is driven again by the control unit so that the plurality of loading plates 15 can be simultaneously raised. The stopper 25 which controls the lowering of the loading plate when the loading plate is raised is pushed up by the protruding piece 29 exposed to the outside through the guide groove 14 and lifted upwardly about the shaft 24. When the protruding piece 29 passes and is positioned on the space part 30, the protruding piece 29 is reduced to an initial state by the restoring force of the elastic member 27.

When the mounting plate 15 is raised by the continuous driving of the motor 20, the sensor 23 installed in close proximity to the stopper 25 detects the ID 22 formed on the side surface of the protruding piece 29.

As described above, the sensor 23 detects the ID 22 formed on the protruding piece 29 and is guided to the LM guide 16 fixed to the guide plate 13. The detection of the loading plate 15 positioned second from the uppermost side stops the driving of the motor 20. At this time, the stopper 25 has a space portion of the loading plate 15 positioned second from the upper side ( 30).

As described above, the mounting plate 15 positioned second from the upper side is fixed to the bracket 31 when the remaining mounting plate 15 descends due to the reverse rotation of the motor 20 while being supported by the stopper 25. When the sensor 32 detects the customer tray 3 on the loading plate 15 located at the third position from the uppermost side, the driving of the motor 20 is stopped. Thus, the customer tray placed on the loading plate by the operation described above is removed. It can be transported onto the unloading stage.

Thereafter, the operation of transferring the customer tray 3 exposed on the unloading stage onto the loading plate 15 and reducing the loading plate 15 to the initial state is as follows.

As described above, the mounting plate 6 is lowered to hold the customer tray 3 placed on the seating plate by the transfer 7 and placed on the mounting plate 15 to drive the motor 20. The 3rd positioned loading board 15 raises a little further in contact with the 2nd loading board 15 whose lowering was controlled by the stopper 25. As shown in FIG.

That is, the protruding piece 29 is placed on the stopper 25 to raise the second stacking plate 15 controlled to be transported a little further along with the remaining stacking plates to the point where the stopper 25 is located in the space 30. Raises and stops driving of the motor 20.

In this state, when the cylinder 26 is driven to push one end of the stopper 25, the stopper 25 is rotated about the shaft 24 while tensioning the elastic member 27 and positioned on the guide groove 14. Since the one end is out of the guide groove, the entire loading plate 15 is reduced to the initial state at the same time by the forward rotation of the motor 20.

If the defective product is filled in the customer tray 3 placed on one of the loading plates 15, the empty customer tray is placed on the upper side, and the defective product is continuously stored in the empty customer tray located at the top. It becomes possible.

That is, the sensor 23 detects the ID 22 formed on the side of the fixed block 21 to control the holding of the loading plate 15 regardless of the quantity of the customer tray placed on the loading plate 15, and the bracket 31 The sensor 32 installed at) detects the uppermost customer tray placed on the loading plate and controls the driving of the motor 20 so that the sensor 32 can be operated regardless of the number of the customer trays 3 placed on the loading plate 15. Will be.

As described above, in the present invention, since a plurality of stacking plates 15 are installed in a space in which one stacker is installed, the defective devices can be classified and stored according to grades, so that the size of the equipment can be made compact, as well as manufacturing cost. The effect is to reduce the cost.

Claims (6)

In the transfer is to hold the customer tray and to transfer on the stage of the unloading portion, the vertically cut guide groove is formed to be installed so as to move up and down along the guide groove of the guide plate and the guide plate A plurality of stacking plates, driving means fixed to a stacking plate located at the lowermost of the stacking plates, and simultaneously lifting the entire stacking plate, and installed on the guide plate so as to be located above the top dead center of the transfer. A stopper means for supporting, a sensor installed close to the stopper means to detect an ID displayed on the loading plate, and a corresponding loading plate on which the customer tray is mounted so that the transfer can hold the customer tray mounted on the loading plate. An unloading device for each class of a horizontal handler composed of trial detection means. The method of claim 1, The driving means includes a pair of pulleys installed along the guide grooves of the guide plate, a timing belt wound around the pulley, a motor connected to one of the pulley shafts of the pair of pulleys to rotate the pulley, and once on the timing belt. A device for unloading device of a horizontal handler consisting of a fixed block fixed to a loading plate positioned at the bottom of the fixed one end. The method of claim 1, The stopper means is installed in close proximity to the guide groove, the stopper is partially located on the guide groove in the state that no external force is applied, and the other end of the stopper is installed on the guide groove so that the rod is connected to one end of the stopper A device for unloading a device of a horizontal handler, comprising a cylinder for deviating from a guide groove and an elastic member installed between the guide plate and the stopper to reduce the stopper to an initial state. The method of claim 3, wherein Device for unloading device of the horizontal handler, characterized in that the rod is connected to the bearing by installing a bearing on one end of the stopper. The method of claim 1, An element unloading device for a horizontal handler, which is inserted into a guide groove of a guide plate on each loading plate to form a protruding piece in which a bottom surface spans a stopper. The method of claim 1, The loading plate detecting means is a device for unloading the device of a horizontal handler, characterized in that the sensor is installed at the point where the transfer detects the uppermost customer tray mounted on the loading plate.