JPH0562702B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a burn-in device, that is, a burn-in device that applies current and signals to circuit elements mounted in the sockets of printed wiring boards and test socket boards equipped with circuit elements to eliminate potential defective products. The present invention relates to a device used for performing burn-in tests for such purposes.

As used herein, the term "burn-in" refers to the present invention.
The term "" is used in a broad sense including debugging and screening, including in the claims section.

Burn-in tests are carried out by plugging and connecting the board into plug-in connectors arranged in multiple stages at fixed positions, and then housing the board in a burn inch bar in multiple stages, which is advantageous in reducing the size of the test equipment. Therefore, it is a problem to efficiently remove the board from the connector after testing such a parallel board arranged in multiple stages, and it is also a problem to efficiently insert the board into the connector before the burn-in test. Become.

BACKGROUND TECHNOLOGY Conventionally, in burn-in equipment that performs burn-in tests by storing boards in the form of a multi-stage parallel body in a burn inch bar, the multi-stage parallel body of boards is detached from the connector using mechanical force. However, no one has yet been developed that can mechanically insert the connector into a multi-stage parallel arrangement of boards, and the insertion relies on manual effort. The force required to insert a board into a connector is usually about 10 to 15 kg per board, which is not small, and conventional manual insertion has a capacity of over 100 boards. Considering the actual situation, this is a serious problem.

Problems to be Solved by the Invention Therefore, the present invention provides a machine that not only removes and disconnects a multi-stage parallel board from a corresponding multi-stage connector, but also inserts a multi-stage parallel board into a connector that is arranged in a multi-stage arrangement. The aim is to provide a burn-in device that guarantees automatic burn-in operation.

Means for Solving the Problems In order to achieve the above object, the burn-in device of the present invention performs burn-in in multiple stages while a board under test is plugged into a plug-in connector arranged in multiple stages at a fixed position. A burn-in device housed in a chamber can be driven forward and backward (in the depth direction of the chamber, in other words, in the direction of insertion and removal of boards), and the forward drive drives a multi-stage parallel body of boards in the burn-in chamber. A first pusher for pushing the connector to the opposite side is installed at a predetermined position in the burn inch yam bar, and a first pusher is set at a first position corresponding to the left and right ends of the front side of the multi-stage parallel board of the board in the burn inch yam bar. , a pair of left and right second positions extending along the parallel direction of the multi-stage parallel body of the board, the position of which can be changed between a second position occupying a range of the travel path when entering and leaving the burn inch yam bar of the board; A second pusher is arranged at a predetermined burn inch ymber position, and a position changing arm on the second pusher is moved to the required position by driving the first pusher back and forth using a connecting rod to the first pusher. It is characterized by being connected to perform a conversion operation.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the figure, 1 is a board under test, and 2 is a plug-in connector in a burn-in device. 1 are housed in the burn inch yanbar 3 in multiple stages. The board 1 is separated from the burn inch chamber 3 and is held between pairs of left and right holding or supporting means provided in multiple stages at fixed positions on a frame-shaped board carrier that can be carried into and taken out of the chamber 3. Alternatively, the chamber 3 may be accommodated in multiple stages in a supported state, or it may be held or supported by stationary holding or supporting means placed at a predetermined position within the chamber 3. It is also possible to carry out multi-stage containment below. The former type is shown in the figure, and its board carrier is supported by reference numeral 4. The connector 2 is connected to the burn inch yam bar 3 through the relay board 5.
Electrically led out.

Reference numeral 6 denotes a first pusher, and in the case of a graphic format, the pusher 6 has a pusher facing the left and right ends of the back (left side in FIGS. 2 and 3) of the board carrier 4 equipped with a multi-stage parallel body of the boards 1. The board 1 is equipped with push bars 7, 7 extending in the parallel direction of the boards 1. The multistage parallel body of board 1... is burn inch yanbar 3
In the case of a type in which the pushers 7, 7 of the first pusher 6 are attached to a stationary clamping or supporting means in the Place it so that it does.
The first pusher 6 is driven in the longitudinal direction through a transmission chain 9, a crank mechanism 10, and a connecting rod 11 by a suitable drive means, such as a geared motor 8 or a worm wheel (not shown).

Reference numeral 12 denotes second pushers, which form a pair on the left and right, each facing the left and right ends of the front side of the multi-stage parallel body of boards 1 in the burn inch yam bar 3, and It extends in the parallel direction of the parallel bodies. The second pushers 12, 12 are placed in a first position, that is, a position where the pushers face the front end of the board 1 accommodated in the chamber 3 (as shown by the solid line in FIG. 3). ) and the second position, i.e. chamber 3.
Arms 13, 13, 13, for changing the position between the position (see the position indicated by the chain line in FIG. 3) that occupies the outside of the traveling path range when the board 1 enters and leaves the board 1;
Fix the tip of No. 13. The arms 13, 13,
The proximal ends of the arms 13, 13 are pivotally connected in a fixed position by a pin 14 placed in a fixed position in the chamber 3, and the intermediate part of the arm is connected to the first pusher 6 by a connecting rod 15.

Reference numeral 16 denotes a roller disposed at a fixed position at the bottom of the chamber 3, on which the board carrier 4 moves when moving in and out of the chamber 3.

In the device of the present invention having the above-described configuration, the multistage parallel body of boards 1 is removed from the connector 2, and the multistage parallel body of boards 1 is inserted into the connector 2 in the following manner.

Now, if a multistage parallel body of boards 1... is housed in the chamber 3 in a state where they are inserted and connected to the connectors 2..., if the first pusher 6 is driven forward in this state, the boards 1... 1... is housed in the chamber 3 in the form of being attached to the board carrier 4, the first pusher 6 is driven forward and the pusher bars 7, 7 move the boat of the board carrier 4. 1... The multi-stage parallel body of the board 1 is pushed forward via the frame members 4a, 4a facing the end of the back of the multi-stage parallel body, and the multi-stage parallel body of the bond 1... is fixedly held or supported within the chin bar 3. When housed in the form attached to the means, the pusher bar 7 of the first pusher 6,
7, the multistage parallel body of boards 1... is directly pushed forward at the portion facing this. In this way, the board 1... multi-stage parallel is disconnected from the connector 2....

When the first pusher 6 is driven forward, it causes the connecting rods 15, 15, 15,
15, the arms 13, 13, 13, 13 are pivoted from the solid line position in FIG. 3 to the chain line position, and the second pushers 12, 12 are accordingly displaced from the first position to the second position. Therefore, board 1...
A combination of a multi-stage parallel body and a board carrier 4,
Alternatively, the multistage parallel body of boards 1 . . . can be carried out of the chamber 3 without being obstructed by the second pushers 12, 12.

A multistage parallel body of boards 1... mounted on a board carrier 4 and carried into the chamber 3, or mounted on clamping or supporting means in the chamber 3,
The first pusher 6 is driven rearward, thereby causing the rods 15, 15, 15, 15 and the arm 1 to
3, 13, 13, 13 through the second pusher 1
2, 12 from the second position to the first position, the second pushers 12, 12 push the left and right ends of the front side toward the rear, that is, toward the connector 2... inserted into.

Effects of the Invention As described above, according to the present invention, not only can a multi-stage parallel body of boards be removed from a corresponding connector in a multi-stage arrangement, but also the multi-stage parallel body of boards can be inserted into a connector in this multi-stage arrangement. Since it can be performed automatically using mechanical power, it contributes to labor saving and is efficient.Moreover, in the present invention, the position change between the first pusher placed at a fixed position and the predetermined first position and second position is performed. The first pusher and the arm for changing the position on the second pusher are connected by a connecting slot, and the board multi-stage parallel body is formed by a detachable/insertable means. This can be easily achieved because the removal, removal, and insertion of the boards are carried out in advance. That is, when the first pusher is operated, the second pusher is operated in conjunction with the operation of the first pusher to carry out the multi-stage parallel body of boards. When the second pusher is actuated, the first pusher is returned to its original position.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of essential parts in an embodiment of the present invention, Fig. 2 is a partially omitted side view showing an embodiment of the invention, Fig. 3 is a plan view, and Fig. 4 is a plan view. . 1 is the board under test, 2 is the connector, 3 is the burn inch bar, 4 is the board carrier, 5 is the relay board, 6 is the first pusher, 7 is the pusher bar, 8 is the geared motor, 9 is the transmission chain, 1
0 is a crank mechanism, 11 is a connecting rod, 12 is a second pusher, 13 is an arm, 1
5 is the connecting rod.

Claims (1)

[Claims] 1. A burn-in device in which the board under test is housed in a burn inch bar in multiple stages with the board under test plugged into plug-in connectors arranged in multiple stages at fixed positions, and which can be driven forward and backward to A first pusher for pushing the multi-stage parallel body of boards in the burn inch yam bar to the side opposite to the connector is installed at the internal position of the burn inch yam bar, and also The parallel arrangement of the multistage parallel body of the boards is capable of changing the position between a first position corresponding to the left and right ends and a second position occupying a range of the travel path when entering and leaving the burn inch yam bar of the board. A pair of left and right second pushers extending along the direction are disposed at predetermined positions on the burn inch ymber, and connecting rods are connected to the first pusher to connect respective position change arms on the second pushers. A burn-in device characterized in that the first pusher is coupled to perform a required position change operation by driving the first pusher back and forth.