KR100273984B1 - device for conveying test tray in cooing chamber for horizontal-type handlerg - Google Patents

Abstract

PURPOSE: A test tray transfer device in a cooling chamber of a horizontal handler is provided to reduce equipment area by installing the cooling chamber on top of the test site. CONSTITUTION: A first elevator installed at a test site descends a test tray installed beneath an operating track to the direction of a cooling chamber. A guide is installed on the base(42) of the cooling chamber. A transferor equipped with a shift bar(45) transfers the test tray delivered by the first elevator to the bottom direction of a rotator of an unloading part. A second elevator installed at a vertical direction of the rotator elevates the test tray transferred in a vertical direction by the rotator toward the rotator.

Description

Device for conveying test tray in cooing chamber for horizontal-type handlerg}

The present invention relates to a cooling chamber of a horizontal handler that cools an element to an external temperature after completion of a test of an element suspended from a carrier module of a test tray. More specifically, the test tray in a vertical state is lowered to the cooling chamber side. The present invention relates to a test tray feeder which cools while transporting in a state and then vertically raises it to the rotator side of the unloading portion.

In general, a horizontal handler for testing a small device, such as TSOP or μBGA, transfers the test tray to a test site while the device to be tested is loaded in a test tray 1 having a structure as shown in FIG. Will be tested.

The test tray 1 is composed of a frame 2 having a rectangular frame shape, and a carrier module 4 having a plurality of movably mounted on the frame and a cavity 3 loaded with elements to be tested.

Figure 2 is a perspective view showing an example of a conventional horizontal handler and Figure 3 is a cross-sectional view taken along the line A-A of FIG.

The horizontal handler for testing the performance of the device while horizontally moving the test tray 1 loaded with a plurality of devices includes a loading part 6 in which a plurality of customer trays 5 of synthetic resin containing the finished devices are loaded. The loading pick place device in which the uppermost customer tray 5 loaded in the upper part is separated and seated by the movable arm 7 and the customer pick tray mounted on the loading part receives a plurality of elements. Positioning block 9 for aligning the position of the conveyed element by suction and conveying, and transfer the element contained in the customer tray 5 to the positioning block to align the position, and then horizontally move the test tray A load pick and place device (10) (11) which loads in (1) or unloads the tested device from the test tray into an empty customer tray; A heating chamber 12 for heating a device loaded in a test tray to a desired test temperature while transferring by taps, and the device is heated at a temperature suitable for a test condition in the heating chamber, and is tested through the passage 13. A test site 14 for contacting the device loaded in the tray to the socket so as to be electrically connected to the tester, and a cooling chamber for cooling the tested device to room temperature at a constant temperature while raising the test tray 1 by one step. (15), an unloading portion 16 on which the test trays exiting the cooling chamber are placed, and a sorting loading portion 17 for classifying and loading elements according to the test results from the test trays placed on the unloading portions. Consists of.

The process of loading and then transporting the device to the carrier module 4 of the test tray 1 using the horizontal handler as described above will be described as follows.

When the plurality of customer trays 5 containing the finished elements are loaded on the loading unit 6, the customer trays are lifted by one step by the elevator 18, so the loader catcher 19 is lowered to the top. After holding the customer tray (5) located on the upper surface of the buffer 20, it is returned to the initial state to hold the next customer tray.

Thus, when one customer tray 5 is located on the upper surface of the buffer 20 by the loader catcher 19, the movable arm 7 picks up the customer tray 5 and places it in the loading unit 8.

After the customer tray 5 containing the elements is placed in the loading unit 8, the load pick and place device 10 sucks the elements of the first row contained in the customer tray by vacuum and transfers them to the positioning block 9. To align the position of the device with the cavity of the carrier module mounted on the test tray 1.

After the device is aligned by the above-described operation, the load pick and place device 10 resorbs the device located in the positioning block 9 and then moves to the upper side of the test tray 1 to adsorb the device. Is loaded into the cavity of the carrier module 4.

The test tray mounted on the upper surface of the rail 28 after all the elements to be tested are loaded into the plurality of carrier modules 4 mounted on the test tray 1 by the repeated operation of the load pick and place device 10 ( 1) is introduced into the heating chamber in a horizontal state through the passage 22 formed on the upper side of the heating chamber 12 by the transfer means is placed on the elevator 21.

The test tray 1 sequentially placed on the elevator 21 of the heating chamber 12 is heated at a temperature suitable for the test while being transferred by one step downward, that is, a temperature that is generated during operation while the device is applied to the product. Next, when the test tray 1 is transferred to the test site 14 through the passage 13 positioned below the heating chamber 12, the vertical drive 23 for driving the test tray 1 downwards is lowered and the tester Since the test signal of each device is provided to the CPU by the fixing device 24, the result signal is output through the contact socket, and thus the performance of the device is determined by the tester (not shown). .

After the test of the device mounted on the test tray 1 is completed by the above operation, the test tray is placed on the elevator 26 of the cooling chamber through the passage 25 formed below the cooling chamber 15. It gradually rises gradually and gradually cools to a temperature almost equal to the outside air temperature.

The test tray 1 is transferred to the unloading unit 16 through a passage 27 formed above the cooling chamber 15, so that the load pick and place device 11 installed in the unloading unit is the test tray 1. The elements mounted on the sorted container are sorted and contained in the empty customer tray 1a located in the sorting stacking unit 17 according to the test result.

After the test device is completely unloaded from the test tray 1, the empty test tray is transferred along the rail 28 to an initial state, so that the device TSOP can be continuously tested.

4 and 5 show a patent application 94-37196, filed by the applicant and filed on Feb. 27, 1998, FIG. 4 is a perspective view showing a part of the heating chamber cut out, and FIG. 5 is a longitudinal cross section of FIG. It is also.

Looking at the configuration, at least two or more rotating pieces 30 formed with the first seating piece 29 for supporting the test tray 1 in the heating chamber 12 up and down side by side inside the heating chamber 12 And fixed to the shaft 31 so as to be opposed to the rotating piece so that the rotating piece is interlocked by the first driving means for switching the linear reciprocating motion of the cylinder 32a to the rotating motion by the link 33 and the lever 34a. Between the biasing, the lifting piece 36 having a second seating piece 35 for lowering the test tray 1 placed on the first seating piece 29 of the pivoting piece 30 by one step is arranged up and down. The elevating piece is raised or lowered in two stages by the second driving means or moved forward and backward at the same time.

Therefore, in the initial state in which the second seating piece 35 formed on the elevating piece 36 is slightly raised from the first seating piece 29 of the pivoting piece 30, the test tray 1 is transferred to the second seating piece 35. When mounted on the upper surface of the), the second stage cylinder 37 is operated to lower the upper plate 38 slightly, so that the pivot shaft 39 is also slightly lowered.

Accordingly, the elevating piece 36 is connected to the pivot shaft 39 so that the second seating piece 35 formed on the lifting piece is lowered slightly than the first seating piece 29 formed on the pivoting piece 30. The test tray 1 placed on the second seating piece 35 is transferred to the first seating piece 29.

Thereafter, when the cylinder 32b is operated to rotate the pivot shaft 39, the lifting piece 36 connected to the pivot shaft 39 by the lever 34 centers on the connection portion of the lever 34b. ) Is retracted to a position where no interference occurs.

When the two-stage cylinder 37 is operated in the state in which the elevating piece 36 is retracted to raise the upper plate 38 by one step, which is the height between the seating pieces, the second one positioned second from the top of the elevating piece 36. Since the upper surface of the seating piece 35 is located below the bottom of the test tray placed on the first seating piece 29, the lifting piece 36 is accessible to the test tray side.

In this state, when the rod of the cylinder 32b is pulled to the initial state, the elevating piece 36 positioned outside the test tray enters the lower part of the test tray, so that the second position second from the top of the elevating piece 36 is placed. The test tray is positioned at a slight interval directly above the seating piece 35.

Thereafter, when the second stage cylinder 37 provided between the heating chamber 12 and the upper plate 38 is operated again to raise the upper plate 38, the lifting piece 36 connected to the pivot shaft 39 is raised. The test tray 1 placed on the first seating piece 29 is transferred to the second seating piece 35.

That is, the test tray 1 transferred to the inside of the heating chamber 12 is completed by one step.

Although the patent application has been described with respect to the heating chamber, the configuration of the cooling chamber of the conventional horizontal handler is also the same as that of the heating chamber.

In operation, the heating chamber 12 heats the test tray 1 transferred upwards while sequentially lowering it and then transfers it to the test site 14, but the cooling chamber 15 moves the test tray 1 downward. ) Is only different from the operation of cooling while sequentially raising) and then feeding it to the unloading part side.

Accordingly, the conventional apparatus has the advantage of cooling the device loaded in the test tray to an external temperature while lowering the test tray 1 transferred into the cooling chamber 15 by exactly one step, but the test tray is horizontally Since the cooling chamber must be located on one side of the test site 14 because the temperature is increased by one step, the size of the equipment is increased, thereby occupying a lot of occupied area according to the installation of the equipment.

The present invention has been made in order to solve such a problem in the prior art, the cooling chamber is located directly under the test site, while the test tray is placed in a vertical position while the horizontal transfer to cool the device loaded in the carrier module to room temperature and then to the rotator side The purpose is to reduce the size and installation area of the equipment by being configured to rise vertically.

According to an aspect of the present invention for achieving the above object, a first elevator unit which is installed directly below the movable track removably installed on the test site to lower the test tray to the cooling chamber side, and installed on the base of the cooling chamber. A guide rod, a shift rod installed horizontally along the guide means, and including a shift rod into which the test tray conveyed by the first elevator unit is inserted, for transferring the test tray directly below the rotator of the unloading unit, and the rotator. There is provided a test tray conveying apparatus in a cooling chamber of a horizontal handler comprising a second elevator unit which is installed on a vertical line of the second elevator unit for raising a test tray conveyed directly below the rotator by a transfer to the rotator side.

1 is a plan view showing a typical test tray

2 is a perspective view showing an example of a conventional horizontal handler

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

Figure 4 is a perspective view showing a part of the heating chamber of the conventional apparatus

5 is a longitudinal cross-sectional view of FIG.

Figure 6 is a perspective view showing a part of the horizontal handler to which the present invention is applied

7 is a perspective view showing a transfer which is a main part of the present invention;

8A and 8B are plan views of FIG. 7;

8A is a state diagram in which the shift rod is located at the inlet side of the test tray;

8B is a state diagram in which the shift rod is moved to the withdrawal side of the test tray;

9 is a front view of FIG. 8A

FIG. 10 is a cross-sectional view taken along the line BB of FIG. 8A

11 is a perspective view showing the first and second elevator parts of the present invention;

12A and 12B are operation state diagrams of the first and second elevator units,

12A shows a state in which the inlet-side two-stage cylinder is raised by one stage and the outlet-side two-stage cylinder is located at the bottom dead center.

12B is a state diagram where the inlet-side two-stage cylinder is lowered by one stage and the outlet-side two-stage cylinder is located at the top dead center;

12C is a state diagram where the inlet-side two-stage cylinder is located at the bottom dead center, and the outlet-side two-stage cylinder is located at the top dead center;

Explanation of symbols for main parts of the drawings

12: heating chamber 14: test site

15: cooling chamber 40: first elevator unit

41: second elevator unit 42: base

44: shift block 45: shift rod

48: Slider 49: Link

54: toggle spring 55: first stopper

56: second stopper 59: slewing rock

61 sensor 63 cylinder

64, 72: two-stage cylinder 65, 73: lifting block

67: shutter driving cylinder 69: first rod

77: third load

Hereinafter, the present invention will be described in more detail with reference to FIGS. 6 to 12 as an embodiment.

FIG. 6 is a perspective view showing a part of a horizontal handler to which the present invention is applied, and the present invention provides cooling of the first and second elevator parts 40 and 41 for elevating the test tray 1 and the first elevator part. It consists of the transfer which horizontally conveys the test tray 1 conveyed to the chamber 15 side.

7 is a perspective view showing a transfer, which is a main part of the present invention, FIGS. 8A and 8B are plan views of FIG. 7, and FIG. 9 is a front view of FIG. 8A, wherein a pair of first LM guiders (parallel to the upper surface of the base 42) ( Configuration of the transfer for a certain distance along the guide means as shown in 43) is as follows.

Shift bars 44 are provided on the first LM guider 43 so as to be movable, and a shift rod into which the test tray 1 vertically lowered by the first elevator unit 40 is fitted on the upper surface of the shift block 44. 45 is fixed vertically, and a guide bar 46 is provided outside the first LM guider 43 to guide the test tray from the shift rod 45 when the test tray 1 is horizontally transported. It is installed side by side on the horizontal feed path of the test tray.

In addition, one second LM guider 47 is disposed between the first LM guiders 43 in parallel, and the second LM guider is provided with a slider 48 to move horizontally. A link 49 is rotatably connected between the shift blocks so that the shift blocks interlock when the slider is moved horizontally.

One end of the link 49 is rotatably coupled to the slider 48 about the shaft 50, and the long hole 49a formed at the other end is fitted to the shaft 51 fixed to the shift block 44. .

In addition, one end of the link 49 fixed to the shaft 50 fixed to the slider 48 is formed with an extension 49b on one side, and the reason thereof will be described later.

The shaft 52 fixed to the shift block 44 and fitted into the long hole 49a of the link 49 is provided with a bearing 52 to be connected to the inner circumferential surface of the long hole.

This is to minimize the friction generated between the shift blocks 44 as they move together with the horizontal movement of the slider 48.

Fixing pins 53a and 53b are fixed to the slider 48 and the link 49, respectively, and a toggle spring 54 is held between the fixing pins 53a and 53b to keep the link rotated. The link 49 is connected to the shift block 44 as the extension portion 49b of the link 49 comes into contact with the base 42 that is outside the left and right stroke of the slider 48 as the slider 48 is moved. ), A first stopper 55 is provided to align the shift rod 45 on the vertical transfer path of the test tray 1.

This is because the test tray 1 is transported by the first and second elevator parts 40 and 41, so that the first and second elevators have shift blocks 44 having fixed shift rods 45 for horizontally transporting the test trays. It should be located directly below the part, but if the slider 48 for conveying the shift block 44 is transferred to the upper part of the first and second elevator parts 40 and 41, the slider when the first and second elevator parts are operated. To cause mutual interference, so that the stroke length of the shift block 44 is longer than that of the slider 48 so that mutual interference does not occur during operation of the first and second elevators and the slider. to be.

The shift block 44, which is transported further than the stroke distance of the slider 48 by the link 49 rotatably installed on the slider 48, is controlled by a stopper means provided on both sides of the base 42. .

The stopper means is fixed on the base 42 corresponding to the left and right stroke distances of the shift block 44 to the second stopper 56 which controls the transfer of the shift block as the side surface of the shift block 44 touches. Although it is comprised, the buffer member 57 is wrapped in the outer peripheral surface of the said 2nd stopper.

This is to minimize the impact on the test tray 1 fitted to the shift rod 45 when the shift block 44 reaches both ends of the first LM guider 43.

The slider 48 provided to be horizontally movable along the second LM guider 47 is horizontally moved by the stroke distance set by the slider conveying means.

The slider conveying means for horizontally moving the slider 48 along the second LM guider 47 has an axis 58 rotatably installed at one side of the base 42 and one end fixed to the axis, and the other end A rotating arm (59) having a long hole (59a) formed therein, a pin (60) fixed to a slider through the long hole of the rotating arm, and driving means for rotating the shaft provided at the base. The test tray 1 inserted into the shift rod 45 by the rotation of the rotational arm 59 is transferred to directly below the rotator, and is configured as a sensor 61 for controlling the driving of the driving means.

The driving means for rotating the pivot arm 59 by a set angle includes a lever 62 fixed below the shaft 58 and a cylinder 63 installed at a bottom of the base and having a rod hinged to one end of the lever. It consists of).

11 is a perspective view showing the first and second elevator units of the present invention, the configuration of which is as follows.

The first elevator unit 40 is a two-stage cylinder 64 which is installed below the cooling chamber 15 so as to be located outside on the vertical down path of the test tray 1 located in the test site 14. ), A lifting block 65 fixed to the upper rod 64a of the second stage cylinder to move up and down according to the driving of the second stage cylinder, and a plate 66 fixed to the lower rod 64b of the second stage cylinder. A shutter driving cylinder 67 fixed to both ends of the plate for finely elevating the two-stage cylinder; and a first guide rod 68 installed vertically on the conveying path of the elevating block to guide the elevating motion of the elevating block; And a first rod 69 which is fixed on the lifting block and on which the bottom of the test tray is placed.

In the lifting block 65 having the above-described structure, when the test tray 1 located in the test site 14 is transferred to the cooling chamber 15 side, the test tray in the heating chamber 12 can be simultaneously transferred into the test site. The second rod 70 is fixed to both sides of the elevating block 65 so that the mounting pieces 71 to which the bottom surface of the test tray in the heating chamber 14 is connected are fixed to the upper surface of each of the second rods. .

The second elevator unit 41 is a two-stage cylinder (72) installed below the cooling chamber so as to be located on the outside of the vertical upward path of the test tray (1) located in the cooling chamber (15); A lifting block 73 fixed to the upper rod 72a of the second stage cylinder to move up and down by driving the second stage cylinder, a plate 74 to which the lower rod 72b of the second stage cylinder is fixed, and the plate A shutter driving cylinder 75 fixed to both ends of the second cylinder to elevate the second cylinder finely; a second guide rod 76 installed vertically on the transport path of the elevating block to guide the elevating motion of the elevating block; The third rod 77 is fixed on the lifting block and on which the bottom of the test tray is placed.

In the lifting block 73 having the structure as described above, when the test tray 1 located in the cooling chamber 15 is transferred to the rotator (not shown), the test tray in the rotator is simultaneously moved into the heating chamber 12. Fourth rods 78 are fixed to both sides of the elevating block 73 so as to be transported, and mounting rods 79 to which the bottom surface of the test tray in the rotator are connected are fixed to the upper surface of each of the fourth rods.

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

First, as shown in FIG. 8A, the rod of the cylinder 63 installed on the bottom surface of the base 42 is advanced so that the pivot arm 59 is rotated on the vertical transfer path of the test tray 1 in the test site 14. It will work from.

As described above, in the state where the pivot arm 59 is rotated on the vertical feed path of the test tray 1 in the test site 14, the extension 49b of the link 49 is connected to the first stopper 55. The shift block 44 hinged to the other end of the link is moved further than the slider 48 because it is rotated about the axis 50 by touching it, and thus the shift rod 45 fixed to the upper surface of the shift block. ) Is located directly below the outlet (not shown) of the test site 14.

As described above, the shift block 44 rotated while tensioning the toggle spring 54 is maintained as shown in FIG. 8A by the toggle spring unless an external force is applied to the link 49.

On the other hand, the 1st, 2nd elevator parts 40 and 41 which raise and fall the test tray 1 vertically hold | maintain the following states from an initial state.

That is, as shown in FIG. 12A, the second stage cylinder 64 of the first elevator unit 40 is located at the top dead center, and the shutter driving cylinder 67 is located at the bottom dead center, and the second stage of the second elevator unit 41 is located. The cylinder 72 and the shutter drive cylinder 75 are all located at the bottom dead center.

In this state, the test tray 1 located in the test site 14 is vertically lowered to the cooling chamber 15 side and the test tray 1a located in the heating chamber 12 vertically into the test site 14. In order to do so, the delivery shutters (not shown) located directly below the test site 14 and the heating chamber 12 must be opened.

However, since the bottom surface of the test tray 1 (1a) abuts on the upper surface of each delivery shutter, it is possible to open the delivery shutter only by slightly raising the test tray.

In order to open the delivery shutter, when the shutter driving cylinder 67 of the first elevator unit 40 is driven, the plate 66 on which the shutter driving cylinder is fixed rises, so that the lower rod 64b is fixed to the plate. The two-stage cylinder 64 is raised by the stroke of the shutter drive cylinder 67.

As such, when the second stage cylinder 64 rises by the stroke of the shutter driving cylinder 67, the lifting block 65 fixed to the upper rod 64a of the second stage cylinder also rises together, so that the test site 14 and the heating chamber are raised. The test tray (1) (1a) in (12) is raised as shown by the dashed-dotted line in FIG. 12A in a state where it is placed on the upper surfaces of the first and second rods (69) and (70), thereby opening the delivery shutter. This becomes possible.

When the two-stage cylinder 64 located at the top dead center is driven and reaches the bottom dead center with the delivery shutter open, the test tray 1a in the heating chamber 12 is vertically transferred to the test site 14 and at the same time. Since the test tray 1 located in the test site 14 is vertically lowered toward the cooling chamber 15, as shown in FIG. 12B, the test tray 1 is sandwiched between the shift rods 45 fixed to the upper surface of the shift block 44.

In this state, the test tray 1a located in the test site 14 maintains a constant interval with the delivery shutter, so that the delivery shutter can be closed.

After closing the delivery shutter in the test site, the shutter driving cylinder 67 located at the top dead center is driven to position the plate 66 at the bottom dead center, so that the test tray in the test site is connected to the top surface of the delivery shutter and at the same time the shift rod The test tray 1 sandwiched between the 45 and 45 is placed on the upper surface of the shift block 44 as shown by the dashed-dotted line in FIG. 12B, and is in a state as shown in FIGS. 8A and 9.

After the test tray 1 is transferred to the cooling chamber 15 in the state where the test of the device loaded in the test tray 1 is completed in the test site as described above, the loaded device is cooled to room temperature for a predetermined time. .

When the cooling of the device is completed in the above process, the test tray 1 must be horizontally transferred to the side of the rotator which rotates 90 ° to the loading and unloading side to unload the device from the test tray 1. A detailed description will be given below.

In order to vertically raise the test tray 1 located directly below the discharge side of the test site 14 to the rotator side in the state as shown in FIG. When pulling is started, the force is transmitted to the shaft 58 through the lever 62 hinged to the tip of the rod, so that the linear movement of the cylinder rod is switched to the rotational movement by the lever, and thus at one end of the lever. The fixed shaft 58 starts to rotate.

When the shaft 58 is rotated by the above operation, the pivot arm 59 is fixed to the upper side of the shaft, and the long hole 59a formed in the pivot arm is fitted to the pin 60 fixed to the slide 48. Since the rotational motion of the axis 58 is switched back to linear reciprocation by the rotational arm 59, the slider 48 starts to move along the second LM guider 47 in the direction of the arrow of FIG. 8A.

When the slider 48 starts to move in the direction of the arrow, the slider is pushed by the first stopper 55 when the slider moves in the direction opposite to the arrow, and the shift block 44 which is further moved in the direction opposite to the arrow while tensioning the toggle spring 54. Is guided to the first LM guider 43 by the toggle spring 54 and is conveyed in the direction of the arrow while maintaining the state as shown in FIG. 8A.

In the above operation, the test tray 1 sandwiched between the shift rods 45 is stably transported by the guide bars 46 positioned on both sides of the first LM guider 43 without being separated to one side.

Subsequent drive of the cylinder 63 causes the rod to be further pulled so that the slider 48 is moved along the second LM guider 47 and reaches the set stroke almost to extend the link 49 exposed to the feed direction of the slider 48. Since the slider 49 continues to feed while the portion 49b is touched by another first stopper 55 and the feed is controlled, the first LM guider 43 rotates while the link 49 rotates about the axis 50. The shift block 44 moving along) is further moved in the feed direction of the slider 48.

As described above, when the shift block 44 is further conveyed in the feed direction of the slider 48 by the rotation of the link 49, between the slider 48 and the fixing pins 53a and 53b fixed to the link 49. The toggle spring 54, which was hooked on the tension rod, was stretched to a certain point (a time when the fixing pin was horizontal to the slider), and the tension was toggled because the gap between the fixing pins 53a and 53b, which had become farther apart, became closer. The spring 54 is compressed so that the link 49 is continuously rotated to further transfer the shift block 44 even if the extension 49a of the link 49 does not contact the first stopper 55. At this time, since the shift block 44 is caught by the second stopper 56 fixed on the base 42, the transfer is controlled.

After the test tray 1 is horizontally conveyed as shown in FIG. 8B in this manner, the test tray 1 fitted to the shift rod 45 is located directly below the rotator.

That is, it is located directly above the third rod 77 fixed to the lifting block 73.

After the sensor 61 detects that the test tray 1 sandwiched between the shift rods 45 is moved as shown in FIG. 8B by the horizontal movement of the slider 48, the second elevator part 41 is driven to directly under the rotator. The test tray 1 located in the room must be raised to the rotator side for unloading the device.

The test tray 1b, which has loaded the device to be tested in the loading unit before raising the test tray 1 located directly below the rotator to the rotator side, is transferred to the heating chamber side to heat the loaded device under test conditions. As shown in FIG. 12B, the inlet shutter (not shown) installed at the inlet side of the heating chamber 12 is kept open while being mounted on the rotator as shown in FIG. 12B.

In this state, when the two-stage cylinder 72 and the shutter driving cylinder 75 of the second elevator unit 41 located at the bottom dead center ascend to the top dead center at the same time as shown in Fig. 12C, the test tray 1b mounted on the rotator Is placed on the fourth rod 78 and ascends to the top dead center in the heating chamber 12, and at the same time, the test tray 1 located in the cooling chamber 15 is mounted on the third rod 77 and mounted in the rotator. .

As described above, the test tray 1 in the cooling chamber 15 is moved to the rotator side, and the test tray 1b in the rotator is positioned in the heating chamber 12 after being transferred into the heating chamber 12. Since the loaded test tray is located above the inlet shutter, the open inlet shutter is closed, and the second stage cylinder 72 and the shutter driving cylinder 75 located at the top dead center are simultaneously lowered to the bottom dead center as shown in FIG. 12B. Wait for the transfer.

The test tray 1 loaded with the tested devices is transferred to the rotator side, and when the second elevator part 41 is reduced to the initial state, the cylinder 63 which has pulled the rod and moves the slider 48 in the direction of the arrow in FIG. ) Re-drives the rod to advance the rod, so that the slider 48 is moved in the opposite direction to the arrow in the above-described operation, resulting in a state as shown in FIG.

In other words, the new test tray after the test of the loaded device is completed is waited under the outlet of the test site 14 to be transferred from the test site 14.

As described above, the present invention cools the device loaded in the test tray at room temperature while vertically transporting the test tray, and then vertically transfers the cooling chamber to the rotator side of the unloading part so that the cooling chamber can be disposed directly on the test site. As a result, the horizontal handler can be made compact and at the same time it can reduce the occupied area according to the installation of the equipment.

Claims (10)

A two-stage cylinder 64 provided below the cooling chamber on the lower path of the test site; an elevating block 65 fixed to the upper rod of the two-stage cylinder to move up and down according to the driving of the cylinder; and a lower rod of the two-stage cylinder. The shutter drive cylinder 67 is installed on a plate fixed to the shaft for finely elevating the second stage cylinder, the first guide rod 68 for guiding the elevating motion of the elevating block, and the test tray fixed to the elevating block. The first elevator unit is composed of a first rod 69 for lowering the test tray to the cooling chamber side. A pair of shift blocks 44 are vertically fixed and shifted along the first LM guider so that the test tray conveyed by the first elevator unit is inserted into the test trays, and is horizontally moved along the second LM guider. A slider 48, a link 49 provided between the slider and the shift block to link the shift block when the slider moves, and a toggle spring connected between the slider and the link to maintain the link at a predetermined position ( 54), a first stopper 55 for rotating the link to align the shift rod on the vertical conveying path of the test tray, and a slider moving means installed in the base to horizontally move the slider. Transfer which transfers the test tray which is conveyed by under the rotator of the unloading part: A two-stage cylinder 72 installed below the cooling chamber, an elevating block 73 fixed to an upper rod of the two-stage cylinder to move up and down according to the driving of the cylinder, and a plate fixed to the lower rod of the two-stage cylinder; A shutter driving cylinder 75 which is installed at the second stage to finely elevate the second stage cylinder, a second guide rod 76 for guiding the elevating movement of the elevating block, and a lower surface of the test tray fixed to the elevating block; A test tray conveying apparatus in a cooling chamber of a horizontal handler, comprising: a second elevator unit configured to include a three-rod 77 for raising a test tray which has been transported under the rotator by a transfer to the rotator side. The method of claim 1, On both sides of the elevating block 65, the second rods 70 for transporting the test trays located inside the heating chamber to the test site when the elevating block is lowered are respectively fixed, and on the upper surface of each of the second rods, A test tray feeder in the cooling chamber of a horizontal handler, characterized in that a seating piece (71) to which a bottom face is connected is fixed. The method of claim 1, A test tray feeder in a cooling chamber of a horizontal handler, characterized in that the transfer is guided by a pair of first LM guiders (43) mounted parallel to the upper surface of the base. The method of claim 1, The test bar in the cooling chamber of the horizontal handler, characterized in that the guide bar 46 is installed to guide the test tray fitted to the shift rod in the horizontal transfer of the test tray to both sides of the first LM guider so as not to be released from the shift rod. Tray feeder. The method of claim 1, And a stopper means for controlling the transfer amount of the shift block in the transfer. The method of claim 5, The stopper means is a cooling chamber of the horizontal handler, characterized in that the second stopper 56 is fixed on the base corresponding to the left and right stroke distances of the shift block and controls the transfer of the shift block as the side of the shift block touches. Test tray feeder in the machine. The method of claim 1, In the cooling chamber of the horizontal handler, one end of the link is hinged to the shaft 50 on both sides of the slider, and the long hole 49a formed at the other end is coupled to the shaft 51 fixed to the shift block. Test tray feeder The method of claim 1, The slider conveying means includes a shaft 58 rotatably installed at one side of the base, a pivot arm 59 having one end fixed to the shaft and a long hole formed at the other end, and a pin fixed to the slider through the long hole of the pivot arm. 60 and drive means for rotating the shaft provided in the base. The test tray conveying apparatus in the cooling chamber of the horizontal handler comprising a sensor (61) for detecting the test tray is transferred directly below the rotator by the rotation of the rotating arm to control the driving of the drive means. The method of claim 8, The drive means is a test in a cooling chamber of a horizontal handler, characterized in that it consists of a lever (62) fixed below the shaft, and a cylinder (63) mounted on the bottom of the base and having a rod hinged to one end of the lever. Tray feeder. The method of claim 1, Fixing the fourth rod (78) for transferring the test tray located inside the rotator to the heating chamber when the lifting block rises on both sides of the lifting block (73), and the bottom of the test tray on the upper surface of each of the fourth rod The test tray feeder in the cooling chamber of the horizontal handler, characterized in that the seating rod (79) to be connected is fixed.