JPH03155145A - Aging socket lid opening device - Google Patents

Abstract

PURPOSE:To peel only an IC adhered to cover by pressing for a short time and to prevent the IC from adhering to the cover without scratching or damaging by static electricity by stopping the opening operation when the cover is opened in a predetermined amount on the way of automatically opening the cover by an opening member, and inserting an insertion member to the opening of the cover. CONSTITUTION:An opening member 11 is moved down obliquely forward from a waiting time, and an engaging pawl 39 is disposed obliquely forward above of the locking member 33 of a socket 1. Then, the locking of the cover 2 is released by moving down obliquely rearward. Thereafter, the pawl 39 is moved to copy a rotating trace at the hinge 28 of the cover 2 as a center in the state engaged with an engaging piece 33c, and the cover 2 is opened. When the opening angle of the cover 2 becomes a predetermined angle on the way, the opening operation of the cover 2 is once stopped. Compressed air is supplied to the upper chamber 63 of a cylinder 61 in this state to move down a piston 62, pins 67, 67 are also moved down, and the lower ends are inserted into the opening 60 of the cover 2. Thus, even if an IC package is adhered to the cover 2, it is pressed by the ends of the pins 67, 67, and dropped on a socket body 27.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lid opening device for a socket that accommodates a packaged IC (integrated circuit) for aging.

(Prior Art) In general, after manufacturing an IC and prior to putting it into practical use, an IC is brought into an operating state by being energized for a certain period of time and subjected to aging to stabilize its characteristics. This aging is done by placing the IC in a socket set on an aging board and subjecting it to an aging device.The socket has a lid that can be opened and closed with a hinge on the socket body that houses the IC, and the lid holds the IC in the socket body. It is desirable to be able to hold it by pressing it against it.

In such aging sockets, the lid is usually opened manually by an operator when taking out the aged IC.

(Problem to be Solved by the Invention) However, this manual operation of opening the lid has low work efficiency and requires a great deal of effort when a large number of sockets are set on an aging board. Moreover, since the ambient temperature in the aging device is about 150@C and the socket becomes high temperature, it is difficult to open the lid immediately after the aging is finished, and cooling time is required.

The present inventors investigated a device that automatically opens the lid by using a driving means such as a motor, and found that when the lid was opened, the aged IC remained attached to the lid, although only slightly. It may happen. That is, since aging is performed under high temperature conditions, the solder flux on the socket or aging board evaporates and adheres to the IC, and this flux causes the IC to adhere to the lid. This I
If C adheres, when opening the lid manually, the operator only has to peel the IC from the lid. However, if the lid is to be opened automatically, the I
It is necessary to peel off C using some kind of mechanism, and if this is done, there is a risk that an error message will appear and the operation of the device will stop.

Therefore, when automating the opening of the lid as described above, a leaf spring is attached to the lid opening member that engages and opens the lid, and when the opening member approaches the socket to lock the lid, the leaf spring is activated. A possible mechanism is such that the IC is inserted through an opening formed in the lid, and even if the IC is attached to the lid, the tip of the spring presses the IC and drops it into the socket body.

However, on the other hand, since the leaf spring moves in contact with the surface of the IC, there are concerns that the surface of the IC may be damaged, or static electricity may be generated due to friction during contact, and the IC may be destroyed by this static electricity. It is preferable to improve.

The present invention has been made in view of the above-mentioned points, and its purpose is to remove the I.I.
By taking measures to press C, it is possible to press the IC surface only when necessary, thereby easily preventing IC adhesion without causing damage to the IC or destruction due to static electricity. be.

(Means for Solving the Problem) In order to achieve the above object, in the invention according to claim (1), the insertion member for inserting the opening of the lid into the lid opening member for opening the aging socket is slidable. By inserting this insertion member into the opening of the lid while it is being opened, the IC is pressed only when the IC is attached to the lid.

That is, the present invention includes a socket body that accommodates 1c,
A device for opening a lid of an aging socket, the lid being openably and closably coupled to the socket body and having an opening at a position corresponding to an IC housed in the socket body;
an opening member having an engaging pawl that engages with the lid of the socket; and an opening member driving means that drives the opening member so as to move along the opening locus of the lid while the engaging pawl is engaged with the lid. and

Furthermore, an insertion member that can be inserted through the opening of the lid when the lid of the socket is opened by a predetermined amount, and an insertion member driving means for driving the insertion member, and when the opening member opens the lid by a predetermined amount. When the opening member driving means stops, the insertion member driving means operates so that the insertion member passes through the opening of the lid.

Further, in the invention according to claim (2), as a desirable configuration, the insertion member is a pin, and the insertion member driving means is constituted by a cylinder connected to the pin.

(Function) With the above configuration, in the invention according to claim (1), when the engaging claw of the opening member engages with the lid of the socket and the lid is opened by a predetermined amount, the opening member is driven. The means is deactivated and the opening of the lid is stopped. In this state, the insertion member driving means is activated, and the insertion member is inserted into the opening of the lid. Therefore, when the IC is attached to the lid, the IC is pressed by the insertion member passing through the opening and falls into the socket body, thereby preventing the IC from adhering to the lid. When the IC is not attached to the lid, the insertion member does not reach the IC, and therefore no undue force is applied to the IC.

In addition, since the IC attached to the lid is pushed off while the lid is being opened, the contact time of the IC with the insertion member is short, which prevents damage and reduces the generation of static electricity due to friction during contact. It is possible.

Further, in the invention according to claim (2), the insertion member is a pin, and this pin is driven by a cylinder, so that a desirable configuration that effectively obtains the above effects can be achieved.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 6 shows the relationship between the aging socket 1 and the opening device 3 for the lid 2 thereof. This opening device 3 is an IC package 4 (FPP; flat IC package) schematically shown in FIG.
Used in aging attachment/detachment systems for plastic packages).

That is, in the above attachment/detachment system, 5 represents a plurality of ICs.
Package 4,4. A tray line 7 carries a plurality of IC packages 4, 4, .・
... is placed in the socket 1 of the aging board 8 and transported in the opposite direction to the tray 6. untreated I
The C package 4 is transferred from the tray 6 of the tray line 5 to the socket 1 of the aging board 8 of the board line 7,
The lid 2 of the socket 1 is closed and the substrate is sent to the substrate unloading section 9 to the aging device. The aged IC package 4 is then supplied to the substrate loading section 10, the lid 2 of the socket 1 is opened on the substrate line 7, and the IC package 4 is transferred to the tray 6 of the tray line 5, and from the tray line 5 to the next processing station ( I
The opening device 3 is used to open the lid 2 of the socket 1 on the board line 7.

To explain the opening device 3, this opening device 3 includes an opening member 11 for directly acting on the lid 2 of the socket 1 to open the lid 2, and a horizontal guide that supports the opening member 11 so as to be horizontally movable. means 12, vertical guide means 13 for supporting the opening member 11 in a vertically movable manner, and driving means 14 for vertically and horizontally moving the opening member 11 via the horizontal and vertical guide means 12.13; The sensor 15 detects whether the lid 2 is opened or not.

In this embodiment, the horizontal guide means 12 is constructed by movably fitting a block 18 into a horizontal bar 17 installed between opposing columns 16 and 16.
3 is constructed by fitting a vertical bar 19 into this block 18 so that it can move up and down. The opening member 11 is supported at the lower end of the vertical bar 19 via a holder 20.

The driving means 14 also includes a pair of cams 23 and 24 connected in parallel to one rotating shaft 22 driven by a motor 21.
The horizontal swing arm 25 and the vertical swing arm 26 are coaxially supported and are swingable by both cams 23 and 24. The vertical bar 19 is moved up and down by a movable arm 26.

Specifically, as shown in FIGS. 7 and 8, the socket 1 includes a socket main body 27 in which the IC package 4 is housed. The lid 2 is supported by a hinge 28 at one end of the socket body 27 so as to be openable and closable, and is biased in the opening direction by two springs. The socket body 27 is provided with a terminal 30 to be connected to a terminal of the IC package 4, and a locking surface 31 facing downward is formed at the front end opposite to the hinge 28.

On the other hand, the lid 2 is provided with a protrusion 32 on its inner surface that presses the terminals of the IC package 4 against the socket body 27, and the front end of the lid 2 is provided with a protrusion 32 that presses the terminals of the IC package 4 against the socket body 27. A locking member 33 is supported.

That is, the locking member 33 has a hook 33a that protrudes from the inner surface of the lid 2 and can be locked on the locking surface 31 of the socket body 27.
and a push piece 33b for unlocking facing the outer surface of the lid 2.
It is shaped like an abbreviated character, and the center part is pin 3.
4, it is rotatably supported by the lid 2 and biased in the locking direction by a spring 35. The locking member 33 is provided with an engaging piece 33c protruding obliquely upward and forward at the center thereof. Further, an opening 60 is formed in the lid 2 at a position corresponding to the IC package 4 accommodated in the socket body 27.

In the case of this embodiment, a plurality of rows of sockets 1 are provided on the aging board 8 with four sockets 1 in one row, and corresponding to the four sockets 1 in one row, the holder 20 of the opening device 3 is mounted as shown in FIG. As shown in FIG. 2, four opening members 11 are supported.

As shown in FIGS. 1, 4, and 5 showing the specific structure of the opening device 3, the opening member 11 is supported at one end by a support pin 37 against a bracket 36 fixed to the holder 20. A stopper 38 fixed to the bracket 36 restricts downward rotation. At the other end of this opening member 11, a lid 2. In other words, the engaging claw 39 protrudes downward and diagonally rearward and engages with the engaging piece 33c of the locking member 33, and the pushing piece 33b of the locking member 33.
A pressing portion 40 for pressing is provided. An overload prevention spring 41 is interposed between the opening member 11 and the holder 20 to prevent the pressing portion 40 from pressing excessively against the lid 2 of the socket 1 (see FIG. 1).

The horizontal bars 17 of the horizontal guide means 12 are provided in two upper and lower positions and extend in a direction perpendicular to the hinge 28 of the lid 2 of the socket 1, and as shown in FIG. At 42 it is slidably fitted on both horizontal bars 17,17. A total of four holes are formed in this block 18 at positions that do not interfere with the horizontal bar 17.17: upper and lower through holes 43.43 at both ends perpendicular to the horizontal bar 17.17, and a small diameter through hole 44.44 at the center. has been done. Vertical bars 19.19 of the upper and lower guide means 13 are slidably provided with respect to the upper and lower through holes 43.43, and the aforementioned holders 20 are mounted at the lower ends of both vertical bars 19.19, and at the upper ends of the vertical bars 19.19. A transmission plate 45 is connected to each of them.

On the other hand, the sensor support bar 4 is located in the small diameter through hole 44.44.
6.46 is slidably provided, and an upper plate 47 and a lower plate 48 are coupled to the upper and lower ends of both support bars 46.46, respectively.

Further, the lower plate 48 has a holder 20 as shown in FIG.
Two sensor brackets (49.49) facing each other are fixed, and a pair of sensors (15.15) are attached to the lower ends of both sensor brackets (49.49). This sensor 15.15 is an optical sensor, and is designed to detect whether or not the lid 2 of the socket 1 is open based on the presence or absence of light reception from one side to the other.
Four sets of sensors 15 are provided corresponding to each socket 1. On the other hand, the upper plate 47 is configured to come into contact with the upper surface of the block 18 to regulate the lower limit position of the sensor 15, and a spring 50 is provided between the upper plate 47 and the block 18 to prevent shock when they come into contact with each other. is provided. That is, in the state shown in FIGS. 4 and 5, the lower plate 48 is only in contact with the holder 20, and the sensor 15 is lowered as the holder 20 is lowered, but the upper plate 47 is not in contact with the block 18. After contact, only the holder 20 can be lowered, and the sensor 15 remains at a position corresponding to the upper end of the open lid 2 of the socket 1, as shown by the chain line in FIG.

In the driving means 14, as shown in FIG.
1 has its vertical output shaft connected to a horizontal rotation shaft 22 of a cam 23.24 for horizontal movement and vertical movement via a pair of spur gears 51.52 and a pair of bevel gears 53.54. The horizontal swinging arm 25 has an abbreviated shape and one end is connected to the cam follower 5.
5, and the other end is connected to the side surface of the block 18 via a connecting rod 56. The vertical swinging arm 26 extends diagonally upward from the lower side of the vertical movement cam 24 toward the lower surface of the plate 4.5 at the upper end of the vertical guide means 13, and has cam followers 57 for the vertical movement cam 24 and the plate 45, respectively. .58
are in contact through.

Furthermore, as a feature of the present invention, as shown in FIGS. 1 to 3, the bracket 36 is provided with an air cylinder 61 having a vertical cylinder axis. The position of this air cylinder 61 corresponds vertically to the opening 60 of the lid 2 of the socket 1 when the lid 2 of the socket 1 is rotated by a predetermined angle (for example, 10 degrees) to the IC peeling position by the engaging claw 39 of the opening member 11. It is placed in a position where A piston 62 is fitted in the cylinder 61 so as to be able to reciprocate, and the piston 62 divides the inside of the cylinder 61 into an upper chamber 63 and a lower chamber 64. is connected to.

Two left and right pins 67 and 67 passing through the lower wall of the cylinder 61 are integrally fixed to the piston 62.
7.67 extends vertically downward on both left and right sides of the opening member 11, and its tip (lower end) has a smooth spherical surface, so that it can be inserted through the opening 60 of the lid 2 located at the IC peeling position. .

The operation of the motor 21 and the supply and discharge of pressurized air from the air cylinder 61 to the boat are performed by a control device (not shown). When the peeling position is reached, the motor 21 is temporarily stopped to stop the opening operation of the lid 2, and the pins 67, 67 are lowered by the air cylinder 61, and their lower ends are inserted into the opening 60 of the lid 2. Then pin 67.6
7 and operate the motor 21 to raise the lid 2.
The opening operation is resumed.

Next, the operation of the above embodiment will be explained.

Due to the rotation of both cams 23 and 24 by the motor 21, the block 18 moves horizontally using the horizontal bar 17, 17 as a guide, and the vertical bar 19, 19 moves through the upper and lower through holes 43 of the block 18.
．． By moving up and down using 43 as a guide, the holder 20
The opening member 11 attached to the opening member 11 moves in two dimensions, combining horizontal movement and vertical movement, as shown in FIG.

That is, the opening member 11 is lowered diagonally forward from the standby position shown by the imaginary line, and the engaging claw 39 faces diagonally forward and above the locking member 33 of the socket 1. Next, the engaging claw 39 moves diagonally backward and moves to the engaging position with the engaging piece 33c of the locking member 33, and the pressing part 40 pushes the pushing piece 33b of the locking member 33, and the socket body 27 The locking of the hook 33a of the locking member 33 to the locking surface 31 of the lid 2, that is, the locking of the lid 2 is released. Next, the engaging claw 39 moves along a rotation locus centered on the hinge 28 of the lid 2 of the socket 1 while being engaged with the engaging piece 33c, and opens the lid 2. During this process, when the opening angle of the lid 2 reaches a predetermined angle (10 degrees), the drive of the motor 21 is stopped at this IC peeling position, and the opening operation of the lid 2 is temporarily stopped. In this state, pressurized air is supplied to the upper chamber 63 of the air cylinder 61, and the piston 62, which was in the raised position, is lowered, and the pins 67 and 67 that are integrated with the piston 62 are also moved downward, and their lower ends are connected to the lid 2. is inserted into the opening 60 of.

Therefore, even if the IC package 4 is attached to the lid 2 due to the flux evaporated from the solder in the socket 1 or the aging board 8 as the temperature rises in the aging device, the IC package 4 is attached to the pin 67 that passes through the opening 60.
．． 67 and falls into the socket body 27. As a result, it is possible to effectively prevent the IC package 4 from adhering to M2. At this time, since the IC package 4 attached to the lid 2 is pushed down while the lid 2 is being opened, the contact time between the IC package 4 and the pins 67 and 67 is short, and the IC package 4 is moved using the elasticity of the leaf spring. The IC package 4 is not pressed continuously for a long time as is the case when the IC package 4 is pressed by pressing the IC package 4. This prevents the surface of the IC package 4 from being damaged, and also reduces the generation of static electricity due to friction during contact. , destruction of the IC package 4 can be prevented. On the other hand, when the IC package 4 is not attached to the lid 2, even if the piston 62 moves downward, the lower ends of the pins 67, 67 do not reach the IC package 4 on the socket body 27, and the IC package 4 is in the normal position.
No excessive force is applied to the

After this pin 67.67 has descended, pressurized air is supplied to the lower chamber 64 of the air cylinder 61, causing the piston 62 to rise, and the pin 67.67 also moves upward and returns to its original position, causing the motor to move. 21 starts, the opening operation of the lid 2 is restarted, and finally, the opening member 11 moves vertically upward,
It will return to its original standby position.

When the sensor 15 detects that the lid 2 is not opened after the opening member 11 is shifted, it sends a signal to stop the pitch feeding of the aging substrate 8 by the substrate line 7 shown in FIG. The lid 2 is repeatedly opened by the opening member 11.

In this embodiment, the cam 23.2 for horizontal movement and vertical movement
4 are arranged coaxially and in parallel, it is possible to move the plurality of opening members 11 horizontally and vertically using one driving source, that is, the motor 21.

Then, the lock of the lid 2 of the socket 1 is released by moving the engaging claw 39 of the opening member 11 to the engaging position.
There is no need to release this lock using a separate drive means. In addition, since the opening member 11 moves following the opening locus of the lid 2, no overload is applied to the socket body 27 and the lid 2 during the opening operation, and even if the socket 1 is thermally deformed, M2 is reliably maintained. It will be opened in

Note that the number of opening members 11 is not limited to this embodiment, and may be increased or decreased as necessary. It goes without saying that the entire holder 20 with the opening member 11 attached may be replaced.

Further, the shape of the engaging claw 39 is not limited to the shape of this embodiment as long as it engages with the locking member.

Further, in the above embodiment, the horizontal movement and vertical movement of the opening member 11 are performed by the same driving source, but for example,
The horizontal movement and the vertical movement may be driven separately, such as horizontally moving the block 18 in the above embodiment with a horizontal feed cylinder device, and vertically moving the holder 20 with a vertical feed cylinder device provided in this block 18.

Further, in the above embodiment, the vertical guide means 13 is provided on the block 18 that moves horizontally, but conversely, the block is supported vertically movably on a fixed vertical guide bar, and the horizontal guide means is provided on the vertically movable block. It may also be provided.

Further, in the above embodiment, the locking member 33 of M2 is engaged with the engaging claw 39 of the opening member 11, but the structure may be such that the engaging claw is engaged with the lid body.

Further, when a sensor for detecting whether or not M2 is opened is provided, this sensor may be fixed to the opening device instead of being moved as in the embodiment.

(Effects of the Invention) As explained above, according to the invention according to claim (1), when the lid of the IC aging socket is opened by the opening member automatically, the opening operation is stopped when the lid is opened by a predetermined amount. By inserting the insertion member into the opening of the lid, it is possible to press and peel off only the IC attached to the lid in a short time, thereby preventing damage to the IC or damage due to static electricity. Adhesion to the lid can be prevented.

Further, according to the invention according to claim (2), the insertion member is a pin, and this pin is driven by a cylinder, so that a desirable configuration that effectively obtains the above effects can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially sectional side view showing the relationship between the socket and the opening member, FIG. 2 is a sectional view taken along the axis of the cylinder portion, and FIG. 3 is a side view of the cylinder. Fig. 4 is a side view showing a partial cross section with the opening device partially omitted, Fig. 5 is a sectional view taken along the line v-V in Fig. 4, and Fig. 6 is a lid opening device for the aging socket. Fig. 7 is a partially sectional side view showing the socket with the lid open, Fig. 8 is a plan view showing the socket with the lid closed, and Fig. 9 is for aging IC packages. FIG. 2 is a schematic configuration diagram of the attachment/detachment system. l... Socket 2... Lid 3... Opening device 4... IC package 11... Opening member 4... Opening member driving means 1... Motor 7... Socket body 8... - Hinge 9... Engaging claw 0... Opening 1... Air cylinder (insertion member driving means) 7... Pin (insertion member) Fig. 5 Fig. 2 Fig. 7 Fig. 3 Fig. 9 Fig. 8 Figure 7

Claims (2)

[Claims] (1) A device for opening the lid of an aging socket, which has a socket body that houses an IC, and a lid that is openably and closably connected to the socket body and has an opening at a position corresponding to the IC housed in the socket body. an opening member having an engaging pawl that engages with the lid of the socket; and an opening member that drives the opening member so as to move along the opening locus of the lid while the engaging pawl is engaged with the lid. a driving means; an insertion member that can be inserted through the opening of the lid when the lid of the socket is opened by a predetermined amount; and an insertion member driving means that drives the insertion member, the opening member opening the lid. An aging socket characterized in that when the lid is opened by a predetermined amount, the opening member driving means stops and the insertion member driving means is activated so that the insertion member passes through the opening of the lid. Lid opening device. (2) The aging socket lid opening device according to claim (1), wherein the insertion member is a pin, and the insertion member driving means is a cylinder connected to the pin.