KR100444701B1 - Socket opening apparatus for preventing damage of socket in package inserting/drawing process - Google Patents

Abstract

PURPOSE: A socket opening apparatus is provided to reduce damage of a socket and lengthen the lifetime of the socket by preventing collision between a pickup tool and the socket in a package inserting/drawing process. CONSTITUTION: A socket supporter(43) is installed at a groove part of an inner side of both sidewalls facing a case. A socket opening shaft(45) is vertically installed through the socket supporter. A DC test socket is installed on an upper surface of the socket supporter. A socket opening part(44) is coupled to the socket opening shaft in order to open a socket. A socket opening shaft moving part is used for moving the socket opening shaft in order to open the socket.

Description

Socket opening device

The present invention relates to a socket for a DC test, and more particularly to a socket opening device to prevent damage to the socket by protecting the collision with the pickup tool during the insertion / withdrawal of the package.

As is generally known, in the case of using the assembled package for electronic and electrical products including computers, the defects of packages almost occur before 1000 hours, and the defects occur after a certain time elapses after 1000 hours. It is almost unlikely to occur. In view of this, a burn-in test apparatus has been developed and used to screen a package having a high probability of failure within 1000 hours, that is, an initial defective package.

The burn-in test apparatus has various packages such as applying various signals, stress voltages, and high temperatures to the packages in a state in which the packages are mounted in sockets of the burn-in board designed according to the characteristics of the package to be burn-in tested and placed in the burn-in test chamber. The method has been applied to select packages that have a high probability of initial failure.

After the burn-in test, the dual type loading / unloading / sorting equipment, which is a facility that sorts the packages in the socket as good or bad and transfers them to the tray two by one, has a loading part, a DC test part, an inserting / drawing part, an unloading part, a sorting part, And it is divided into a pickup tool head for picking up and transporting the package.

The loading unit is an area for transporting a tray containing a package to be burn-in tested, and after the tray is transported, a first pick-up tool for picking up two packages in the tray is used for a DC test to perform a DC test. Insert each into a socket. Subsequently, after the DC test is completed, the burn-in test-completed package in which the insertion second pickup tool inserts the package into the socket on the burn-in board and the discharge third pickup tool is already inserted into the socket on the burn-in board. Pick up and transfer to the unloading part. At this time, the good quality package is transferred to the tray of the loading unit based on the burn-in test result, but the defective package is transferred to the tray of the sorting unit.

Figure 1 is a schematic diagram showing the structure of the DC test unit according to the prior art, Figure 2 is a detailed cross-sectional view showing the structure of the DC test socket according to the prior art. For convenience of description, only one socket is shown in FIG. 2, but two sockets are actually mounted.

As shown in FIG. 1, the connection terminals of the DC test sockets 20 are connected to the connection terminals of the printed circuit board (not shown) of the DC tester 10, and the DC test is performed to insert and withdraw the package. The transfer pickup tool 30 is installed to move at a predetermined distance upward from the sockets 20 for the transfer. Here, the vacuum pad 31 for adsorbing the package 1 is installed at the center of the lower surface of the transfer pickup tool 30, and the socket guide 33 is integrally projected downward by a predetermined length at each corner of the lower surface. have.

As shown in FIG. 2, in the DC test socket 20, the guide post 24 of the moving part 23, which is an insulator, is inserted into the guide hole 22 of the fixing part 21, which is an insulator, and the guide post ( A spring 25 is wound around the periphery 24, and the conductive connecting terminal 27 is sandwiched between the moving part 23 and the fixing part 21. Here, the connection terminal 27 is a portion 27a pressed down by the moving part 23, a portion 27c for holding the external lead of the package 1 to the portion 27b, and a DC tester. The pin 27d for fitting to the printed circuit board (not shown) of FIG. 10 and performing electrical connection is integrally connected.

Referring to the process of inserting / drawing the package using the DC test socket and the pick-up tool configured as described above, first, transfer to insert the package 1 into the DC test sockets 20 of the DC tester 10. After the vacuum pad 31 of the pick-up tool 30 vacuum-adsorbs the packages 1 to be DC-tested, respectively, the transfer pick-up tool 30 moves to the upper side of the sockets 20.

Thereafter, when the transfer pickup tool 30 is vertically lowered, the socket guide 33 of the pickup tool 30 contacts the upper edge of the upper surface of the moving part 23 of the sockets 20 rather than the package 1. To start.

Subsequently, when the pick-up tool 30 descends, the moving part 23 also starts to move downward.

In more detail, as the moving part 23 moves downward, the guide post 24 of the moving part 23 moves down the guide hole 22 of the fixing part 21 to compress the spring 25. do. In addition, when the moving part 23 pushes down the site | part 27a of the connection terminal 27, the site | part 27e which has elasticity is compressed and the site | part 27c is pulled up toward an outer side from the site 27b. Are separated.

After the vacuum suction state of the vacuum pad 31 is released in this state, the package 1 freely falls from the vacuum pad 1 to the central opening of the moving part 23 by a predetermined distance. At this time, the outer lead and the portion 27b of the package 1 are positioned up and down in correspondence with each other.

Then, when the pickup tool 30 moves upward, the moving part 23 also starts to move upward. In more detail, as the moving part 23 moves upward, the guide post 24 of the moving part 23 raises the guide hole 22 of the fixing part 21 by the restoring force of the spring 25. Move.

In addition, the portion 27e of the connecting terminal 27 moves the portion 27a upward by the restoring force, and the portion 27c moves the outer lead of the package 1 downwardly toward the inner side to move the portion of the outer lead of the package 1 to the portion 27b. Press firmly to touch.

After the external lead of the package 1 is connected to the connection terminal 27 of the socket 20 in this manner, the DC tester 20 tests the DC characteristics of the package 1.

After the DC test is completed, the socket guide 33 presses the moving part 23 of the socket 20 as the pick-up tool 30 starts to descend in the same manner as described above for withdrawing the package.

Thereafter, as in the downward movement of the moving part 23, after the part 27c of the connection terminal 27 is separated from the part 27b, the vacuum pad 31 vacuum-absorbs the package 1.

Then, the pick-up tool 30 moves upward to withdraw the package 1 from the socket 20. In addition, as in the upward movement of the moving part 23, the part 27c is located in the original position and is located on the part 27b.

However, conventionally, when the pick-up tool 30 is moved downward for the insertion / withdrawal of the package 1, the socket guide 33 directly pressed the socket 20 to give a significant impact. Because of this, the life of the socket 20 is shortened and there is a problem that the operation rate is low due to frequent work to replace it.

In addition, since the vacuum pad 31 and the socket guide 33 are installed together in the pickup tool 30, when the socket guide 33 opens the socket 20, the package 1 has a central bottom surface of the socket 20. It is located upwards by a certain distance from. Therefore, when the vacuum suction state of the vacuum pad 31 is released, the package 1 freely falls a predetermined distance and is placed on the center bottom of the socket 20. For this reason, the external lead of the package 1 did not settle correctly between the site | part 27b, 27c of the said connection terminal 27, and their electrical connection was bad. For this reason, there was a problem that the case where the normal DC test is impossible.

In addition, since the socket guide 33 is installed in the pickup tool 30, the weight of the pickup tool increases according to the vibration of the pickup tool 30, which greatly increases the vibration of the pickup tool 30, thereby adversely affecting the accuracy of the equipment. To provide.

Accordingly, it is an object of the present invention to provide a socket opening apparatus for extending the life of the socket by preventing a collision with the socket when the package is inserted into or withdrawn from the socket.

1 is a schematic view showing the structure of a DC test unit according to the prior art.

Figure 2 is a detailed cross-sectional view showing the structure of a DC test socket according to the prior art.

3 is a schematic view showing a socket opening apparatus according to the present invention.

Explanation of symbols on the main parts of the drawing

DESCRIPTION OF SYMBOLS 1 Package 10: DC tester 20: Socket 21: Fixing part 23: Moving part 24: Guide post 25: Spring 27: Connection terminal 30: Pickup tool 31: Vacuum pad 33: Socket guide 40: Socket opening device 41: Case 42 : Spring 43: Socket support 44: Socket opening part 45: Socket opening shaft 47: Moving part 49: Air cylinder 50: Pickup tool 51: Vacuum pad

Socket opening device according to the present invention for achieving the above object is

A socket support provided on a groove of opposite inner side walls of the case;

A socket opening shaft installed vertically through the socket support;

A DC test socket placed on an upper surface of the socket support;

A socket opening part fastened to the socket opening shaft to contact the upper surface of the socket to open the socket; And

And a socket opening shaft moving means for moving the socket opening shaft downward to open the socket.

Therefore, the present invention protects the socket from collision with the pick-up tool when opening the socket for inserting / drawing the package, thereby preventing damage to the socket, and also allowing the pick-up tool to directly seat the package on the socket, Improve.

Hereinafter, a socket opening apparatus according to the present invention will be described in detail with reference to the accompanying drawings. The same code | symbol is attached | subjected to the part same as a conventional part.

3 is a schematic view showing a socket opening apparatus according to the present invention. Although only one socket is shown for convenience of description, two sockets are actually mounted.

As shown in FIG. 3, in the socket opening device 40, the socket support 43 is fitted into the fixing grooves on the left and right sidewalls of the case 41 so as to be positioned at the upper open hollow of the case 41. The socket opening shaft 45 penetrates and is inserted through the through holes of the socket support 43, and the socket opening shaft moving means is provided below the socket opening shaft 45. Here, the socket opening shaft moving means is configured such that the moving portion 47 is screwed to the lower side of the socket opening shaft 45, and the air cylinder 49 is screwed to the lower side of the moving portion 47.

In addition, the spring 42 is wound along the circumference of the socket opening shaft 45 protruding upward of the socket support 43, the DC test socket 20 is fixed to the center of the upper surface of the socket support 43 The socket opening 44 is in contact with the upper surface of the socket 20 and extrapolated to the socket opening shaft 45 to be placed on the spring 42 which is a cushioning member and screwed to the socket opening shaft 45. Here, the central through hole 44a for inserting / drawing the package 1 into the socket opening 44 is formed.

And the pick-up tool 50 has only the vacuum pad 51, without having the socket guide 33 of FIG.

Referring to the process of inserting / drawing the package using the DC test socket and the pickup tool configured as described above, first, the transfer pickup tool for inserting the package 1 to be DC-tested into the DC test sockets 20. The vacuum pad 51 of 50 vacuum-packs the packages 1 and then the pick-up tool 50 moves above the sockets 20. Here, there is no downward protrusion such as a socket guide on the lower surface of the pickup tool 50.

Thereafter, before the pick-up tool 50 is vertically lowered to contact the upper surface of the socket 20, the socket opening part 44 moves downward while contacting the moving part 23a of the socket 20, so that the socket 20 is closed. To open.

In more detail, the air cylinder 49 moves downward before the pick-up tool 50 is vertically lowered to contact the upper surface of the socket 20. In addition, the moving part 47 and the socket opening shaft 45 also move downward to compress the spring 42. Therefore, the socket opening part 44 also moves downward while contacting the moving part 23a of the socket 20 to press down the moving part 23 of the socket 20.

At this time, the spring 25 is compressed by the downward movement of the moving part 23a, and the portion 27e of the connection terminal 27 is separated from the portion 27b and is aside.

In this state, the pick-up tool 50 continuously descends to directly contact the package 1 with the seating portion of the socket 20. Then, the lowering stops and the vacuum suction state of the vacuum pad 51 is released. Place the package (1). Thus, the package 1 is inserted into the socket 20.

After the insertion of the package is completed, the operation of the air cylinder 49 is stopped to move the socket opening shaft 45 upward while repositioning the socket opening portion 44 upward by the restoring force of the spring 42. At this time, the moving part 23a of the socket 20 is also returned to the upper side by the restoring force of the spring 25 and the part 27e is returned to the part 27b. Therefore, the outer lead of the package 1 is firmly connected between the corresponding portions 27b and 27e.

In this way, after the external characteristic of the package 1 is connected to the connection terminal 27 of the socket 20 and the DC characteristics of the package 1 have been tested, the same method as described above for withdrawing the package is performed. The socket 20 is opened by the socket opening 44 before the pick-up tool 50 contacts the socket 20.

Thereafter, the pick-up tool 50 continues to descend so that the vacuum pad 31 vacuum-adsorbs the package 1 and pulls it out of the socket 20.

Accordingly, the present invention protects the socket from collision with the pick-up tool when opening the socket for inserting / drawing the package, thereby preventing damage to the socket, and also closing the socket after the pick-up tool seats the package in the socket. Improve the seating comfort.

As described above, the socket opening apparatus according to the present invention opens the socket by moving downwardly the socket opening portion in contact with the upper surface of the socket before the pick-up tool contacts the socket during package insertion / retrieval. Therefore, the present invention can prevent the collision of the pickup tool and the socket to prevent damage to the socket and consequently extend the life of the socket, thereby reducing the equipment downtime for repairing the socket to improve the equipment operation rate.

In addition, according to the present invention, the socket guide is not installed in the pickup tool so that the pickup tool directly seats the package in the socket.

In addition, since the present invention is not provided with a socket guide to the pickup tool can be reduced in the pickup tool by that much, it is possible to suppress the vibration caused by the left and right movement of the pickup tool to maintain the accuracy of the installation.

Claims (5)

A socket support provided on a groove of opposite inner side walls of the case; A socket opening shaft installed vertically through the socket support; A DC test socket placed on an upper surface of the socket support; A socket opening part fastened to the socket opening shaft to contact the upper surface of the socket to open the socket; And And a socket opening shaft moving means for moving the socket opening shaft downward to open the socket. 2. The socket opening device according to claim 1, wherein a central through hole is formed in the socket opening to allow a pickup tool to insert / draw the package through the central through hole. According to claim 1, The socket opening shaft moving means is fastened to the lower portion of the socket opening shaft to move; And The socket opening device is fastened to the moving part, characterized in that the moving part has an air cylinder. The method of claim 3, wherein a buffer member is installed between the socket opening portion and the socket support along the socket opening axis to close the socket by returning the downwardly moved socket opening portion by a restoring force of the buffer member. Socket opening device. 2. The socket opening apparatus according to claim 1, wherein only a vacuum pad is installed on a lower surface of the pickup tool without a socket guide.

Images