JPH01303268A - Magazine for plate body and supply and storage device thereof - Google Patents

Abstract

PURPOSE:To make various sized plate bodies feedable and stowable with a single magazine by installing a two types of guide members extending in vertical directions along a lifting route of a movable bottom plate. CONSTITUTION:Two types of guide members (18, 20) and (28, 30) are extended in vertical directions along a lifting route of a movable bottom plate 36, being free of lifting motion to a frame and installed to be held in the lower limit position and thus they are attached to the frame. In these guide members (18, 20) and (28, 30), the first guide members (18, 20) are free of movement in a first direction within a horizontal plane to the frame, and are also free of fixation in the transfer adjusting position, thereby regulating a position of a plate body (lead frame material) LF to be supplied and housed to this first direction. In addition, the second guide members (28, 30) are free of movement in a second direction within the horizontal plane, and also are free of fixation in the adjusted position, thereby regulating the position of the plate body LF to this second direction as well.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magazine for plate-like objects, and more particularly to a versatile magazine that can be used both as a supply source for plate-like objects and as a storage destination for the plate-like objects. The present invention also relates to a plate-like body supply/storage device using this magazine. Such a magazine and a plate-like body supply/storage device are suitably used, for example, in an inspection process for plate-like bodies such as electronic component lead frame materials.

[Prior art and problems to be solved by the invention] Conventionally,
Electronic component lead frames are first manufactured in the form of a plurality of connected lead frame materials, and are inspected in this state. From the manufacturing process to the inspection process, the lead frame material is often moved, stored, etc. while housed in a magazine. Then, the lead frame materials are supplied one by one from the magazine in the inspection process, and after being subjected to a predetermined inspection, they are stored in the magazine again.

By the way, lead frame materials come in various sizes, and conventionally, dedicated magazines have been prepared for each lead frame material of each size. Therefore, the number of magazines increases, resulting in high costs, and a large space is required to store the many magazines.

Such problems also exist in other plate-shaped bodies other than lead frame materials.

Therefore, in recent years, a general-purpose magazine has been proposed in which the position of the guide member is movable for plate-shaped bodies of different methods, and by adjusting the guide member position, an appropriate storage space can be created for each plate-shaped body. (For example,
(See Publication No. 7176).

However, the magazine described in the publication is positioned by matching the corner of the plate to the corner formed by two orthogonal side plates, so if the magazine is a plate with different dimensions, The problem is that the center position changes in both directions in the horizontal plane. In order to perform feeding and storage operations using the same mechanism for plates of different sizes during processing and inspection, it is important that the center of the plate is always at a predetermined position in at least one direction. preferable.

SUMMARY OF THE INVENTION Therefore, the present invention solves the problems of the prior art as described above, and provides a magazine that can be used universally for plate-like objects of different sizes and that can maintain the center in one direction in the horizontal plane. With the goal.

Another object of the present invention is to provide a plate-shaped body supply/storage device using such a magazine.

[Means for Solving the Problems] According to the present invention, the above objects are achieved by: a frame; a movable bottom plate that is movable up and down with respect to the frame and is held at the lower limit position of the up-and-down movement; It has two types of guide members attached to the frame and extending vertically along the vertical path of the movable bottom plate, the first guide member being attached to the first guide member in the horizontal plane with respect to the frame. The first
The second guide member is movable relative to the frame in a second direction in a horizontal plane and can be fixed at a desired position, and A magazine for a plate-shaped object is provided, which is characterized in that the position of the plate-shaped object is regulated.

In the magazine of the present invention, the first guide member and the second
One pair of guide members is provided, and the pair of guide members is movable independently and can be fixed at a desired position, and has a plate shape in both the first direction and the second direction. The position of the body may be regulated.

Further, in the magazine of the present invention, a chamfered portion for introducing the plate-shaped body may be formed at the upper end portions of the first guide member and the second guide member.

According to the present invention, the above magazine for a plate-like object of the present invention, a support base that slides the bottom of the frame of the magazine in a horizontal direction and supports it at a predetermined position, and the above-mentioned magazine attached to the support base. Supply of a plate-like body characterized by having an elevating plate inserted in the sliding direction below the movable bottom plate of the magazine at a predetermined magazine support position, and a driving means for moving the elevating plate in the upward direction.・A storage device is provided.

The plate-shaped body supply/storage device of the present invention may include a detector attached to the support body in order to detect the plate-shaped body accommodated in the magazine.

Further, the plate-like body supply/storage device of the present invention may include a latch mechanism for fixing and supporting the magazine at a predetermined position on the support base.

[Example] Hereinafter, specific examples of the present invention will be described with reference to the drawings.

FIG. 1 is a partial plan view showing an embodiment of a plate-shaped body supply/storage device using a plate-shaped body magazine according to the present invention;
FIG. 2 is its II-I+ sectional view. Further, FIG. 3 is a partial sectional view showing other parts of this embodiment, and FIG. 4 is a partially sectional side view thereof.

In this embodiment, a lead frame material is used as the plate-shaped body.

First, in FIGS. 1 and 2, reference numeral 2.4 indicates magazine side plates, which are arranged parallel to each other. 6.
Reference numerals 8 denote a fixed bottom plate and an end plate that connect these side plates. These form the frame of the magazine.

-1- Two bearing members 10.12 are attached to the side plate 2, and guide shafts 14.16 are inserted through the side plate 2 so as to be slidable in the X direction by the bearing members. First guide members 18, 20 each receiving a lead frame material are fixed to the ends of the guide shafts inside the frame. These two guide members extend in the vertical direction (Z direction) and are arranged at the same position in the X direction. These guide members are for regulating the position of the lead frame material in the X direction, and have tapers ff118a and 20a formed at their upper ends, respectively. The ends of the guide shafts 14.16 outside the frame are connected and fixed by a connecting member 22, and each guide shaft 14.1
6 cannot be rotated. The side plate 2 has guide shafts 14 and 16 on the outside.
A shaft 24 parallel to is fixed and passes through the connecting member 22. A set screw 26 for fixing to the shaft 24 is attached to the connecting member.

1. A guide groove in the X direction is formed in the side plate 4, and a second guide member 28, 30 containing lead frame material is attached so as to be partially accommodated in the groove and slidable in the X direction. It is being These two guide members extend in the vertical direction (Z direction), and are arranged to face each other at the same position in the X direction and separated by an appropriate distance in the X direction. These guide members regulate the position of the lead frame material in the X direction, and furthermore, the first guide member 18°20
The tapered portions 28a and 30a in the X direction and the tapered portions 28b and 30b in the X direction are formed at the upper end thereof, respectively. Guide member 28.
30 are provided with set screws 32 and 34 for fixing the position to the side plate 4, respectively.

A movable bottom plate 36 is arranged above the fixed bottom plate 6 between the side plates 2.4. The bottom plate 36 is movable in the vertical direction, and a lower limit position is set by a retainer 11 and two members 38 attached at the same height inside the lower part at both ends of the side plates 2 and 4. Handles 40 are attached to the top surface of both ends of the zero-movement bottom plate 36 in the X direction.

A magazine is constructed by the following. Note that 42 is a handle for operating the magazine, which is attached to the side plate 2.4.

In FIG. 1, a lead frame material receiving space 1-F1 is formed by the first guide member 18.20 and the second guide member 28.30. During use, the position of the guide member is fixed in this state by the setscrews 26, 32, 34.

In addition, when accommodating lead frame materials of different dimensions, loosen the bottom screws and insert the first guide part + J18.2.
0 to a desired position in the X direction, the second guide member 28.30 is moved to a desired position in the X direction, and is fixed in position by the set screw. As a result, for example, the first guide member can be set at the positions indicated by 18' and 20' in FIG.
8′.

By setting at the position indicated by 30', a lead frame material accommodation space L F,2 is formed. By appropriately setting the positions of the second guide members 28 and 30, it is possible to accommodate lead frame materials of different sizes while always maintaining the same center in the X direction.

Reference numeral 44 denotes a magazine support stand, on which the fixed bottom plate 6 of the magazine is attached.

That is, a guide groove in the X direction is formed in the ground surface of the support base 44, and the fixed bottom plate 6 is slidably connected to the groove.

As shown in FIG. 1, a latch 46 for locking the magazine is attached to the support base 44.

The latch is pressed by a spring so as to protrude from below with respect to the movement path of the fixed bottom plate 6 in the slide groove, and by pushing the lever 48 attached to the latch in the opposite direction, the fixed bottom plate movement path is moved. can be evacuated from. 1st
The figure shows the magazine being slid to a predetermined position on the support base 44L and locked by the latch 46.

A sensor 50 is attached to the support base 44.

The sensor detects the
It is disposed approximately at the center of the side plate 2.4 in terms of the direction and slightly below the tapered portions of the upper ends of the guide members 18, 20, 28, 30 in the X direction.

Note that the lower position of the sensor can be adjusted.

Reference numeral 52 denotes an elevating plate inserted in the X direction below the movable bottom plate 36, and the elevating plate is reciprocated in the vertical direction by an elevating drive means fixed relative to the support base 44.

FIGS. 3 and 4 show the above-mentioned elevating and lowering driving means.

In these figures, 54 is a drive motor, and the output rotating shaft of this motor is connected to the screw shaft 5 in the upper direction through a joint 56.
8, and the shaft is connected to the lower end of the bearing part 60.8.
The upper end is supported by 62. A lifting platform 66 has a nut member 64 fixedly attached to the screw shaft.
is attached, and the elevating plate 52 is fixed to the elevating table.

The motor 54 and bearing parts 60,62 are supported by a support member 68, which is fixed relative to the support base 44.

1. Limit switches 70 and 72 fixed to the support member 68 are arranged in the ascending and descending movement path of the ascending and descending table 66.

As shown in FIG. 4, two guide rods 74 and 76 are attached to the support member 68 so as to be slidable through the lifting table 66 in the L downward direction.

Therefore, depending on the direction of rotation of the motor 54, the screw shaft 58 rotates in either the forward or reverse direction, and the lifting platform 66 moves upward or downward accordingly.

When the lifting platform reaches the position of the limit switch 70 or 72, it is detected that it is at the lower limit position or the upper limit position, and the lifting platform 66 moves only within the range between these positions.

As described above, when the elevating table 66 moves in response to a desired control signal, the movable bottom plate 36 of the magazine moves in the vertical direction while being supported on the elevating plate 52.

Figure 5 shows the magazine and lead frame supply of this embodiment.
FIG. 2 is a schematic diagram showing an example of automatically inspecting a lead frame using a storage device. Further, FIGS. 6 and 7 are schematic diagrams for explaining operations in the automatic inspection process. Note that in these figures, the magazine and other members are schematically shown.

The operation of the magazine of this embodiment will be described below with reference to these figures.

In FIG. 5, a table +02 for placing the .mu. material to be inspected is placed in the center.

The table has processing tables 102a and 10 on the left and right sides, respectively.
2b, and the left-hand processing table 102a is rotatable around an axis in the X direction.

” - On the left side of the table 102, a magazine M-1 containing uninspected lead frame material LP is mounted on the support stand (44
) and placed in place. Also, on the right side of the table 102 are magazines M-2, M-3, M-4 for accommodating inspected lead frame materials LF.
is fixed to the support base (44) and placed at a predetermined position.

Above the daple 102 is a lighting means for inspection.
04 and a camera for imaging lead frame materials! 06 is held and arranged on the holding body 10.8. Details of such an inspection method are disclosed in, for example, Japanese Patent Laid-Open No. 63-15141 and Japanese Patent Laid-Open No. 63-35380, in which a line sensor camera is used as the camera 106, and the camera and illumination means! 04 together with the holder in the X direction, the surface reflection pattern of the lead frame material is measured, and whether the pattern is close to a predetermined reference pattern or not is determined to be a good product or a defective product. It is something.

The inspection is performed on both sides of the lead frame material, and first, the lead frame material L placed on the placement table 102a is inspected.
The first side of F was inspected, and then the mounting table was rotated to turn the lead frame material upside down and move it toward the mounting table 02b.

Here, the second surface is inspected.

The uninspected lead frame materials LF in the magazine M-1 are conveyed one by one onto the processing table 102a by the conveyance means +10, and the inspected lead frame materials LP on the treatment table 102b are transferred to the inspection results by the conveyance means +12. Accordingly, it is transported to one of magazines M-2, M-3, and M-4. For example, if there is a defect on the first side, it is stored in the magazine M-2 without inspecting the second side,
Those that have no defects on the first side but have defects on the second side are stored in the magazine M-3, and those that have no defects on both sides are stored in the magazine M-4. Such control of the conveying means can be easily performed based on the inspection results.

Here, the operation of setting the magazine M-1 at a predetermined position on the support base 44 will be explained.

The uninspected lead frame material F (i) is laminated in desired number of layers on the moving bottom plate 36, and the guide member +8.20°28.30
is adapted to the dimensions of the lead frame material and is fixed so that the lead frame material is located at the center in the X direction.

Next, the fixed bottom plate 6 of the magazine M-1 is slid and inserted into the guide groove of the support stand 44, and the latch 46 is pushed down to connect the slide. The position where the end of the magazine is locked by the latch is the predetermined position, and thus the setting to the desired position is completed. FIG. 6(a) is a diagram showing such a setting and sorting situation, in which the magazine M-] is slid from the right side to the left side. Note that, prior to this sliding, the elevating plate 52 is placed at a height between the movable bottom plate 36 at the lowest position and the fixed bottom plate 6, as shown in this figure.

Next, the drive motor 54 is operated to move the elevating plate 52 upward, and the movement of the elevating plate 52 is stopped when the sensor 50 detects the secondmost portion of the lead frame material. This completes the lead frame material supply arrangement.

Next, the operation of conveying the uninspected lead frame material LP from the magazine M-1 onto the placement table 102a will be described.

As the conveying means 110, one having an automatic hand as shown in FIG. 7 is used. The autohand has two opposing arms 120, 122 extending downwardly. These arms are positioned at a predetermined distance by a spring that forces them to approach each other. 7th
As shown in Figure (a), the inside of each arm is tapered, and flexible members 124 and 126 for gripping the lead frame material are attached to the ends thereof, respectively.

Move the auto hand downward using the arms 120 and 122, and the flexible member 124 and 126
When the lead frame material LP reaches the topmost position in the magazine as shown in Fig. 7(b), the position shown in Fig. 7(b)
Close the arms 120 and 122 as shown by the broken lines and apply moderate pressure to the uppermost lead frame material 1 by the action of the taber.
Only one sheet is gripped. If the automatic hand is moved upward in this state, only one lead frame material LF can be carried out (see FIG. 7(c)). Then, when the automatic hand is moved to the direction -F just above the placement table 102a and the arms 120 and 122 are opened, the lead frame material LF falls and is positioned on the placement table 102a.

In addition, remove lead frame material 1-F from magazine M-1.
Each time the lead frame material is carried out, the sensor 50 no longer detects the lead frame material, and in this case, the W lowering plate 52 is raised until the uppermost lead frame material is detected. Therefore, subsequent conveyance operations will be repeated in the same manner. After the last lead frame material is conveyed, the state is as shown in FIG. 6(b). This state is set at the upper limit position of the W unloading 52.

When removing the empty magazine M-1, lift plate 5
2 to the lower limit position, then lower the lever 48 to move the latch 46 downward, and pull the handle 42 by hand to release the magazine M-2 as shown in FIG. 6(c). Pull out 1.

The operation of setting the magazines M-2, M-3, and M-4 at predetermined positions on the support stand 44 is to move the magazine M-1 onto the support stand 44.
The operation is similar to that of setting the lead frame material at a predetermined position.6 However, in this case, no lead frame material is housed in the magazine.

After setting the magazines M-2, M-3, M-4,
The drive motor 54 is operated to move the elevating plate 52 upward, and the movement of the elevating plate 52 is stopped when the movable bottom plate 36 is detected by the sensor 50. This completes the lead frame material storage preparation.

Next, the operation of conveying the inspected lead frame material LP from the cutter 102b to one of the magazines M-2, M-3, and M-4 will be explained.

In this case as well, the transport means 112 is the transport means 112.
Perform the same operation using something similar to . However, in this case, when the auto hand is moved above the desired magazine and the arms 120 and 122 are opened, the falling lead frame material LP will fall to the magazine guide member 18 ( (not shown), 20, 28.3
0 (not shown), the magazine is accommodated in the magazine with its position in the horizontal plane restricted. At this time, as described in ``1'', since a tapered part for introduction is formed at the upper end of the guide member, the permissible range is widened in the X and Y directions by the taper, and the drop falls within the permissible range. The lead frame material is properly accommodated.

Incidentally, every time one lead frame material LF is carried into the magazines M-2, M-3, M-4, the sensor 50 detects the addition of the lead frame material, and in this case, the elevating plate 52
is lowered to a position where the uppermost lead frame material is detected by the sensor 50. Therefore, the carrying-in operation will be repeated in the same manner from next time onwards. After the last lead frame material is carried in, the state will be as shown on the left side of FIG. 6(a).

Magazine M-2 containing a specified amount of lead frame material,
The operation of removing M-3 and M-4 is performed in the same manner as the operation of removing magazine M-1.

Although the explanation of the case where the plate-shaped body is a lead frame material and the magazine is used in an inspection device is described in L, the present invention can be conveniently used in an inspection device for plate-shaped bodies other than lead frame materials. Needless to say, the present invention can be similarly applied to cases where the present invention is used in various processing devices other than inspection devices.

[Effects of the Invention] As described in detail above, according to the present invention, there is provided a magazine that can be used for general purposes for plate-shaped objects of different sizes and that can maintain the center in at least one direction in a horizontal plane. Ru.

Further, according to the present invention, a magazine is provided that has good compatibility with both the supply source of the plate-shaped body and the storage destination of the plate-shaped body.

The present invention also provides a plate supply and storage device particularly suitable for one or more such magazines.

[Brief explanation of the drawing]

FIG. 1 is a partial bottom view showing an embodiment of a plate-shaped body supply/storage device using a plate-shaped body magazine according to the present invention;
FIG. 2 is a sectional view taken along line II-11. Further, FIG. 3 is a partial sectional view showing other parts of this embodiment, and FIG. 4 is a partially sectional side view thereof. Figure 5 shows the magazine and lead frame supply of this embodiment.
FIG. 6 is a schematic diagram showing an example of automatically inspecting a lead frame using a storage device, and FIGS. 6 and 7 are schematic diagrams illustrating operations in the automatic inspection process. 2.4: side plate, 6: fixed bottom plate, 18.20: first guide member, 18a, 20a: tapered portion, 28.30: second guide member. - 28a, 28b, 30a, 30b: Taper part, 36: Movable bottom plate, 44: Support stand, 46: Latch, 50: Sensor, 52: Elevating plate, LF: Lead frame material, M-1, M-2, M -3, M-4: Magazine. Figure 2 Figure 6 Figure 7

Claims (6)

[Claims] (1) a frame, a movable bottom plate that is movable up and down with respect to the frame and held at the lower limit position of the up-and-down movement; and 2, which is attached to the frame and extends in the vertical direction along the up-and-down path of the movable bottom plate. a first type of guide member;
The guide member is movable in a first direction in a horizontal plane with respect to the frame and can be fixed at a desired position to regulate the position of the plate-shaped body in the first direction, and the second guide member is movable in a first direction in a horizontal plane and fixed at a desired position. A magazine for a plate-shaped object, which is movable in a second direction in a horizontal plane with respect to a frame and can be fixed at a desired position to regulate the position of the plate-shaped object in the second direction. (2) A pair of one of the first guide member and the second guide member is provided, and the pair of guide members is movable independently and can be fixed at a desired position. The magazine for a plate-like object according to claim 1, wherein the position of the plate-like object is regulated with respect to both the direction and the second direction. (3) The plate-shaped object magazine according to claim 1, wherein chamfered portions for introducing the plate-shaped object are formed at the upper ends of the first guide member and the second guide member. (4) A magazine for a plate-shaped object according to claim 1, a support base that slides and accepts the bottom of the frame of the magazine in a horizontal direction and supports it at a predetermined position, and a support base that is attached to the support base and said magazine support predetermined position. A supplying/storage device for plate-like objects, characterized in that it has an elevating plate inserted in the sliding direction below the movable bottom plate of the magazine, and a driving means for moving the elevating plate in the vertical direction. (5) The plate-like object supply/storage device according to claim 4, further comprising a detector attached to the support for detecting the plate-like object housed in the magazine. (6) The plate-like body supply/storage device according to claim 4, further comprising a latch mechanism for fixing and supporting the magazine at a predetermined position on the support stand.