KR101032418B1 - Tray Transferring Apparatus - Google Patents

Abstract

The tray transfer apparatus of the present invention comprises a base plate 100 and an auxiliary base plate 120; A moving plate 140 installed on one side of the auxiliary base plate 120 and provided with a heat radiating member 142; An LM rail 150 mounted on the auxiliary base plate 120 and an LM guide 160 movably connected to the LM rail 150 and a guide plate 170 connected to the upper portion of the LM guide 160 (200); A plurality of holders 220 having a two-stage gripper 210 installed at intervals on both sides thereof; A plurality of LM rails 252 installed on the auxiliary base plate 120, a plurality of LM guides 260 movably inserted in the LM rails 252, And a second moving cylinder (270, 272); A cylinder position sensing sensor (400) for sensing the position of the first and second moving cylinders (270, 272); And a tray detection sensor 500 for detecting the position of the tray T.

Tray, feeder

Description

Tray Transferring Apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray transporting apparatus, and more particularly, to a tray transporting apparatus capable of stably holding and transporting one or two trays according to a user's request,

In general, semiconductor devices produced on a production line are subjected to a test to determine whether they are good or defective before shipment, and the handler is a device used for testing such semiconductor devices. Semiconductor device transfer device is used to automatically transfer semiconductor devices contained in a tray between the processes while mounting them in a test socket of a test site, performing a desired test, classifying the semiconductor devices into various grades according to a test result, and unloading the tray again. It is a device that is repeatedly executed in sequence to perform a test.

1, the tray transfer device 90 is moved left and right and up and down, as shown in FIG. 1, on the upper rear side of the loading stacker and unloading stacker (not shown) of the handler. (Not shown) for moving the tray 901. The rear end of the moving plate 901 of the tray transfer device 90 is fixed to the driving means.

A pair of holders 902 and 903 are provided on both sides of the moving plate 901 so as to be able to hold both side edges of the tray T at a lower portion of the moving plate 901, And the lower ends of the holders 902 and 903 are bent inward to support the lower surfaces of both side edges of the tray T. [

A pneumatic cylinder 904 is provided at the center of the upper surface of the moving plate 901 so as to be coupled with the holders 902 and 903 on both sides of the moving plate 901. Fixed blocks 905 and 906 are installed on the front and rear sides of the pneumatic cylinder 904 do. One end of a plurality of guide shafts 907 and 908 which are coupled to the holders 902 and 903 on both sides so as to guide the left and right movement of the holders 902 and 903 are fixed to the fixed blocks 905 and 906, .

A variable plate 910 which vertically moves up and down between the moving plate 901 and the lower ends of the holders 902 and 903 and adjusts the width of the lower ends of the holders 902 and 903 is provided directly below the moving plate 901 And a fixed bar 911 is fixedly installed on both sides of the moving plate 901. A pneumatic cylinder 912 is vertically installed at both ends of the fixed bar 911, And the rod 913 of the driving motor 913 is driven up and down. One end of the connection bracket 914 is coupled to the rod 913 of the pneumatic cylinder 912. The other end of the connection bracket 914 is engaged with both side edge portions of the variable plate 910.

Therefore, when the rod 913 of the pneumatic cylinder 912 is driven up and down, the variable plate 910 is also vertically moved up and down to adjust the width of the lower end of the holders 902 and 903. However, although the conventional tray transfer apparatus can adjust the width of the holders 902 and 903, the number of grippers (not shown) increases, and the structure is complicated as a whole, so that the tray transfer operation is not easy.

It is therefore an object of the present invention to provide a tray transfer apparatus in which the number of grippers of a tray transfer apparatus is reduced to simplify the structure thereof.

Another object of the present invention is to provide a tray transfer apparatus capable of easily gripping (gripping) one or two trays by providing a two-stage gripper.

According to an aspect of the present invention, there is provided a tray transfer apparatus including a base plate and an auxiliary base plate; A moving plate installed on one side of the auxiliary base plate and having a heat dissipating member; A guide member formed of an LM rail provided on an upper portion of the auxiliary base plate, an LM guide connected to the LM rail movably connected to the LM rail, and a guide plate connected to the upper portion of the LM guide; A plurality of holders connected to the LM guides movable along the LM rails and having a two-stage gripper installed at intervals on both sides thereof; A drive member formed of a plurality of first and second moving cylinders provided on one side of the LM rail; A cylinder position sensing sensor for sensing a position of the first and second moving cylinders; And a tray detection sensor for detecting the position of the tray T.

Further, the tray transfer apparatus of the present invention comprises: a base plate; A guide plate installed on an upper portion of the base plate and configured to move along the LM guide installed on the LM rail; A holder connected to the LM guide movable along the LM rail and provided with two-stage grippers on both sides thereof; A cam follower connected to the guide plate and provided on both sides of the connecting member; First and second moving cylinders for moving connecting members provided with cam followers; A cylinder position sensing sensor for sensing a position of the first and second moving cylinders; And at least one tray detection sensor for detecting the position of the tray T.

The tray transfer apparatus of the present invention has an advantage that one or two trays can be easily gripped and transported stably using a two-stage gripper.

In addition, the present invention reduces the number of grippers of the tray transfer apparatus to simplify the overall structure of the apparatus, thereby reducing the cost.

(Example)

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tray transfer apparatus according to an embodiment of the present invention;

2, the tray transfer apparatus 1000 of the present invention includes a base plate 100, an auxiliary base plate 120, a moving plate 140, a guide member 200, a driving member 300, a cylinder position sensing sensor 400, and a tray sensing sensor 500.

The base plate 100 is provided with a fixing piece 102 on one side thereof and the fixing piece 102 is connected to the auxiliary base plate 120 via a plurality of elastic members 112 and 112. The fixing member 102 is fixed to the base plate 100 by the fixing member 106.

An auxiliary base plate 120 is installed on the upper portion of the base plate 100 and a moving plate 140 for accommodating the heat releasing member 142 is disposed on the other side of the base plate 100, ) Is installed.

The guide member 200 includes an LM rail 150 and an LM guide 160 movably connected to the LM rail 150 and a guide plate 170 connected to the upper portion of the LM guide 160 . A plurality of LM (Linear Motion) rails 150 and 152 are installed at an upper portion of the auxiliary base plate 120 at predetermined intervals in the Y direction. An LM guide 160 is installed on the LM rail 150 and an LM guide 160 is installed on the LM rail 150 to move left and right along the LM rail 150. Since the guide plate 170 is connected to the upper portion of the LM guide 160, the guide plate 170 can be moved along with the movement of the LM guide 160.

The guide plate 170 is formed with an elongated hole 172 inclined in a predetermined direction and a cam follower 180 is inserted into the elongated hole 172. Since the cam puller 180 is movable in the slot 172, the width of the holder 220 to be described later can be adjusted.

The driving member 300 includes a holder 220, an LM rail 252, an LM guide 260, and first and second moving cylinders 270 and 272.

The holder 220 is installed on both sides of the auxiliary base plate 120 and is connected to the LM guide 162 movable along the LM rail 152 and has a two-stage gripper 210 Is installed. The two-stage grippers 210 are installed in recessed receiving portions 226 formed on both sides of the holder 220.

A second through hole 213 is formed at one side of the front surface of the two-stage gripper 210. A grip portion 210 is formed at a lower portion of the first through hole 213 so as to grip (215) is formed. A second penetration portion 223 having a rectangular shape is formed on one side of the rear surface of the second stage gripper 210 and a first gripper 208 is fitted to the second penetration portion 223 by a pin 205 do. The elastic member 203 is fitted in the plurality of through holes 209 formed at the rear end of the first stage gripper 208 so that the impact generated when the first stage gripper 208 grips the tray T can be reduced .

The driving member 300 includes an LM rail 252, a plurality of LM guides 260, and a plurality of first and second moving cylinders 270 and 272.

The LM rail 252 is provided with a plurality of LM guides 260 and 260 which are movable in a predetermined direction. A plurality of first and second moving cylinders 270 and 272 are installed on one side of the LM rail 252.

On the LM guides 260 and 260, a bent bracket 276 and a moving member 275 are installed. A plurality of first and second moving cylinders 270 and 272 are installed on one side of the LM rail 252, that is, the bracket 276. The first and second moving cylinders 270 and 272 can move the moving member 275 disposed in front of the bracket 276 and are connected to the air fitting portion 278.

A connecting member 282 is provided in front of the moving member 275, and cam followers 180 are installed at both ends of the connecting member 282. The cam puller 180 moves along the elongated hole 172 of the guide plate 170 according to the movement of the auxiliary connecting member 284 to be described later. That is, the moving member 275 is connected to the LM guide 260 provided on the LM rail 252 and is disposed behind the connecting member 282 provided with the cam follower 180, The cam follower 180 is movable in the elongated hole 172 of the guide plate 170 because the connecting member 282 is also moved. An auxiliary connecting member 284 is provided at the center of the connecting member 282 and a cylinder position sensing sensor 282 for sensing the position of the first and second moving cylinders 270 and 272 is connected to the auxiliary connecting member 284. [ (400).

A curved bracket 512 is installed on the lower portion of the guide plate 170 and a tray sensor 500 for detecting the position of the plurality of trays T is installed inside the guide plate 170. In Fig. 2, reference numeral 273 denotes an auxiliary bracket.

Hereinafter, the operation of the tray transfer apparatus of the present invention will be described in detail with reference to the accompanying drawings.

3A and 3B, the tray transfer apparatus 1000 of the present invention includes a cam follower 180, which is initially in a state where the first and second moving cylinders 270 and 272 are not operated, Is positioned above the elongated hole 172 of the guide plate 170. The tray sensor 500 (see FIG. 2) installed on the right side of the holder 220 senses the tray T.

When the tray detecting sensor 500 senses the tray T installed at a predetermined position, the first moving cylinder 270 is operated. When the first moving cylinder 270 is operated, the cam puller 180 installed in the long hole 172 of the guide plate 170 is rotated about the middle portion of the elongated hole 172, as shown in FIGS. 4A and 4B, . That is, when the first moving cylinder 270 is operated, the moving member 275 pushes the connecting member 282 by a predetermined distance. At this time, the cam follower 180 installed on both sides of the connecting member 282 moves within the elongated hole 172. Then, the two guide plates 170 are opened to each other in the Y direction, so that the holders 220 are also opened in the Y direction. At this time, the first-stage gripper 208 installed inside the second-stage gripper 210 grips the tray T as shown in FIG. 4B.

On the other hand, when another tray T is to be further gripped under the tray T, the first moving cylinder 270 and the second moving cylinder 272 are simultaneously operated. Another tray detection sensor 500 installed on the right side of the holder 220 detects another tray T. As described above, the other tray T does not grip the tray T after the first moving cylinder 270 is operated, that is, the cam follower 180 moves to the middle portion of the slot, , And further holding another tray T again.

5A and 5B, when the second moving cylinder 272 is moved to move the moving member 275 in order to further grip the other tray T, the cam puller 180 is inserted into the elongated hole 172, As shown in FIG. That is, as the second moving cylinder 272 further pushes the moving member 275, the cam follower 180 installed on both sides of the connecting member 282 changes from the state shown in Fig. 4A to the state shown in Fig. 5A And moves to the end of the elongated hole 172. At this time, the grip portion 215 grips the other tray T while the first-stage gripper 208 of the second-stage gripper 210 grasps the tray T.

The two-stage gripper 210 grips the tray T and the other tray T using the first-stage gripper 208 and the grip portion 215. [ That is, two trays are gripped.

Therefore, in the tray transfer apparatus 1000 of the present invention, a two-stage gripper 210 capable of gripping another tray T while holding the tray T is applied to reduce the number of grippers, It can be gripped simply and transported stably.

The tray transfer apparatus of the present invention can be widely applied to a tray transfer apparatus of a semiconductor device that transfers one or more trays that accommodate electronic components.

1 is a perspective view of a conventional tray transfer apparatus,

2 is an exploded perspective view of the tray transfer apparatus of the present invention,

FIGS. 3A and 3B are a top view and a side view showing an initial state of the tray transfer apparatus;

FIGS. 4A and 4B are a top view and a side view showing a state in which the tray transport apparatus grasps one tray,

5A and 5B are a top view and a side view showing a state in which the tray transport apparatus grasps two trays.

Description of the Related Art [0002]

100: base plate 120: auxiliary base plate

140: moving plate 150, 152, 252: LM rail

160, 260: LM guide 200: guide member

210: second stage gripper 220: holder

270,272: first and second moving cylinders 300: driving member

400: Cylinder position detection sensor 500: Tray detection sensor

Claims (12)

A base plate (100); A moving plate 140 installed at an upper portion of one side of the auxiliary base plate 120 provided on the upper surface of the base plate 100 and provided with a heat radiating member 142; An LM rail 150 installed on the auxiliary base plate 120 and an LM guide 160 movably connected to the LM rail 150. A guide plate 170 connected to the upper portion of the LM guide 160 (200); A plurality of holders 220 connected to the LM guide 162 movable along the LM rail 152 and having a two-stage gripper 210 installed on both sides of the holder at intervals; A plurality of LM rails 252 installed on the auxiliary base plate 120, a plurality of LM guides 260 movably inserted in the LM rails 252, And a second moving cylinder (270, 272); A cylinder position detecting sensor 400 installed on an auxiliary connecting member 284 provided at one side of the connecting member 282 and sensing the position of the first and second moving cylinders 270 and 272; And a tray detection sensor (500) for detecting the position of the tray (T). The base plate according to claim 1, wherein the base plate is provided with a fixing piece on one side of the base plate, and the fixing piece is fixed to the auxiliary base plate through the plurality of elastic members. And the tray transfer device is connected to the tray transfer device. The apparatus according to claim 1, wherein the guide plate (170) of the guide member (200) has a long hole (172) formed therein and a cam follower (180) Tray feed device. 2. The tray transfer apparatus according to claim 1, wherein the second stage gripper (210) of the holder (220) is formed with a first stage gripper (208) inside the second stage gripper. The apparatus of claim 1, wherein the first and second moving cylinders (270, 272) of the driving member (300) are mounted on a bracket (276) The tray transferring device being configured to transfer the tray to a predetermined position. The moving member (275) according to claim 5, wherein the moving member (275) is connected to the LM guide (260) provided on the LM rail (252) and is disposed behind the connecting member (282) The cam follower 180 is movable within the elongated hole 172 of the guide plate 170 because the connecting member 282 is moved in accordance with the movement of the guide plate 170. [ A base plate (100); A guide plate 170 installed on the base plate 100 and configured to move along the LM guide 160 installed on the LM rail 150; A holder 220 connected to the LM guide 162 movable along the LM rail 152 and provided with two-stage grippers 210 on both sides of the holder; A cam follower 180 connected to the guide plate 170 and provided on both sides of the connecting member; First and second moving cylinders (270, 272) for moving the connecting member (282) provided with the cam puller (180); A cylinder position sensing sensor (400) for sensing a position of the first and second moving cylinders (270, 272); And at least one tray detection sensor (500) for detecting the position of the tray (T). The gripper (210) of claim 7, wherein a second through-hole (223) of a rectangular shape is formed on one side of the rear surface of the second-stage gripper, and the second through- Wherein the gripper (208) is configured to be fitted by the pin (205). The gripper according to claim 8, wherein the first-stage gripper (208) has a plurality of through holes (209) formed at the rear end of the first-stage gripper, Wherein the gripping mechanism is configured to mitigate the impact generated when gripping the tray. The tray transfer apparatus of claim 7, wherein the cam follower (180) is configured to be movable within a slot (172) of the guide plate (170). The apparatus of claim 7, wherein the first and second moving cylinders (270, 272) are mounted on a bracket (276) and drive a moving member (275) connected to an LM guide (260) provided on the LM rail (252) Is configured to be able to move the cam puller (180) provided on both sides of the guide plate (282) within the elongated hole (172) of the guide plate (170). The tray transfer apparatus according to claim 7, wherein the tray detecting sensor (500) is installed on a bent bracket (512) provided below the guide plate (170).

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