JPH0342675Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is designed to hold a large number of laminated chips aligned so that their end faces are flush during the silver coating process during the manufacture of multilayer chip capacitors, for example. The present invention relates to a clamp device that is suitably used in such cases.

BACKGROUND ART Until now, in the silver coating process during the production of multilayer chip capacitors, as shown in FIG. A large number of laminated chips 102 are attached and held one by one by hand, and both end faces 103, 103 of each chip 102 are attached.
silver paste was applied to it.

Problems to be Solved by the Invention However, as described above, when pasting the laminated chips 102 manually, there is a problem that efficiency is extremely low and that a large amount of manpower is required, resulting in increased labor costs.

Moreover, since it is not easy to accurately position each chip 102 manually, each chip 102 must be positioned so that the end surface 103 to which silver paste is to be applied is flush with the chip 102.
It is difficult to line up the chips, and as shown in Figure 6, each chip 1
02, or the laminated chip 102 may be tilted as shown by the broken line.Therefore, when silver paste is applied,
As shown in FIG. 7, there was a problem in that the silver paste coating 104 became thicker overall, thinner overall, or partially changed in thickness.

Furthermore, if the laminated chip 102 is simply attached to the double-sided tape 101 as described above, if the adhesive strength decreases due to temperature changes, or if the pressing force of the chip 102 decreases, There was also the problem that the chip 102 fell off.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a method in which a large number of recesses are formed at intervals for receiving the objects fed from the feeder, and the objects are placed in each recess. A holder equipped with a wedge-shaped member to be tightened and fixed.
The feeder is removably attached to a base that can approach and separate from the feeder, and a stopper is provided on the base to align the end surfaces of the objects sent to each recessed part of the holder flush. The gist is that a push pin that pushes each wedge-shaped member in the tightening direction and a return pin that pushes it back in the loosening direction are provided.

Effects of the Invention In the clamp device having such a structure, objects such as laminated chips sent from the feeder to each recessed part of the holder are stopped by the stopper and received with the end surfaces aligned flush with each other. Then, when the base is separated from the feeder, the wedge-shaped member of each recessed notch is pushed in the tightening direction by the push pin, and the object in each recessed notch is tightened and fixed by the wedge-shaped member.
Therefore, each object is held in the holder with its end surfaces flush with each other, so that when silver paste or the like is applied to the end surfaces, a uniform coating is formed. Also,
When the wedge-shaped member is pushed back by the return pin, the tightening is released, and each object can be easily taken out from each recessed part of the holder.

Example Hereinafter, the present invention will be described in detail with reference to Examples.

FIG. 1 is a schematic exploded perspective view of a clamping device according to an embodiment of the present invention, in which reference numeral 1 indicates a feeder in which a large number of parallel feeding grooves 11 are formed, and the object such as laminated chips etc. A slides in each feed groove 11 and is intermittently fed to each recessed portion of the holder 2 as described later.

Reference numeral 2 denotes a holder made of a strip-shaped plate, and the upper edge of this holder 2 has a number of recessed notches 21 for receiving objects A fed from the feed groove 11 of the feeder 1. 11, and each recessed notch 21 is provided with a wedge-shaped member 22. The left and right end edges of this holder 2 are fitted into grooves 32, 32 formed in both side plates 31, 31 of the base 3, which can move toward and away from the feeder 1, and the holder 2 is pulled upward. It is attached so that it can be removed by pulling it out. Furthermore, the front plate 33 of the base 3
A stopper 4 made of a strip-shaped plate is disposed between the holder 2 and the holder 2 to align the end surfaces of the objects A sent to each recessed notch 21 so that they are flush with each other.
The stopper 4 is attached to the front plate 33 of the base 3 with bolts 5 for adjusting the distance.

The wedge-shaped member 22 is for tightening and fixing the object A supplied to the recessed notch 21, and as shown in the enlarged plan view of FIG. is in sliding contact with one inclined side surface 211 of the wedge-shaped member 22, and a drawing slope 223 for facilitating the supply of the object A is formed at the end of the object supply side of the object pressing surface 222 of the wedge-shaped member 22. has been done. As shown in the sectional view of FIG. 5, this wedge-shaped member 22 includes a pair of legs 224, 224 extending downward,
4 and 5, by inserting and fixing both ends of the movable pin 23 loosely inserted into the pin insertion hole of the holder 2 into the holes of both legs 224, 224. It is mounted so that it can be moved from the loosened position shown by the two-dot chain line in the figure to the tightened position shown by the solid line.

Push pin 6 that pushes each wedge-shaped member 22 in the tightening direction
As shown in FIG. 3, the large diameter head portion 6 at the tip
1, a retaining part 62 at the rear end, and a small diameter shaft part 63 in the middle.The small diameter shaft part 63 is inserted into the movable mounting plate 64, and the large diameter head part 61
A coil spring 6 is connected between the movable mounting plate 64 and the movable mounting plate 64.
5 is provided to surround the small diameter shaft portion 63. This movable mounting plate 64, as described later,
When the object A is fed from the feeder 1 to each concave notch 21 of the holder 2, it is pulled up so as not to get in the way, but when the object A is tightened and fixed after being fed, it is configured to be lowered. When the base 3 approaches the lowered mounting plate 64, each wedge-shaped member 22 presses against each push pin 6.
The coil spring 65 contacts the large diameter head portion 61 of the coil spring 65 and is pushed in the tightening direction by the elastic force of the coil spring 65.

On the other hand, each return pin 7 that pushes back each wedge-shaped member 22 in the loosening direction is provided in a protruding manner on a movable mounting plate 71 located on the opposite side of the push pin 6, as shown in FIGS. 1 and 3. , when this movable mounting plate 71 moves toward the base 3, each return pin 7
The pins pass through the pin through holes 34 and 41 formed in the front plate 33 of the base 3 and the stopper 4 and push back each wedge-shaped member 22 in the loosening direction, thereby releasing the tightening fixation of each object A. It's becoming like that.

A case in which, for example, a laminated chip is held and fixed as an object A by the clamping device having the above-mentioned structure, and silver paste is applied to the end face of the chip A will be described below.

First, when supplying the laminated chips A, the base 2 is positioned close to the feeder 1 so that there is a small gap between the tip of the feeder 1 and the holder 2, as shown in FIG. The laminated chips A are fed from the feeding groove 11 of the feeder 1 to each recessed notch 21 of the opposing holder 2. And each concave notch 21
As shown in the figure, the laminated chips A come into contact with the stopper 4 and are received in the recessed notches 21 in an aligned state with their respective end faces aligned flush. Next, the base 2 is separated from the feeder 1, and the movable mounting plate 64 of the push pin 6 is lowered and stopped between the feeder 1 and the base 2, as shown in FIG. Then, the base 2 moves toward the movable mounting plate 64, and each wedge-shaped member 22 moves toward each push pin 6, as described above.
, and is pushed in the tightening direction by the elastic force of the coil spring 65. In this way, each wedge-shaped member 22
When the chip A is pushed in, the pushing force is divided toward the laminated chip A due to the action of the slope 221 of the wedge-shaped member 22, and as shown in FIG.
It is firmly clamped and fixed by the pressing surface 222 of and the side surface 212 of the recessed notch 21 .

When the fixation of the laminated chip A is thus completed, the holder 2 is taken out from the base 3, and silver paste is applied to both end surfaces of the laminated chip A using coating means such as a roll coater. In this case, since each of the laminated chips A is fixed and held in an aligned state with the end faces flush, the coating film of silver paste is formed to have a uniform thickness.

When the application of the silver paste is completed, the holder 2 is mounted on the base 2 again, and the movable mounting plate 7 of the return pin 7 is attached.
1 moves toward the base 2, and as described above, each wedge-shaped member 22 is pushed back in the loosening direction by each return pin 7, and the fastening fixation of each laminated chip A is released. Each laminated chip A is thus untightened.
is put into a container from holder 2 and transferred to the next process.

Effects of the invention As can be understood from the above explanation, according to the clamping device of the invention, everything from supplying the object to tightening and fixing and releasing it is automatically performed, except for the work of attaching and detaching the holder to the base. Therefore, the efficiency is extremely high and there is almost no need for manpower, so it is possible to save a large amount of labor costs. Moreover,
Since each object is fixed and held in an aligned state with its end surfaces flush, when applying silver paste or the like to the end surfaces, it is possible to form a coating film with a uniform thickness. Furthermore, since each object is firmly clamped and fixed mechanically by the wedge-shaped member, the objects are satisfactorily prevented from falling off.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the clamping device of the present invention, Fig. 2 is a partial plan view of the device when an object is being supplied, and Fig. 3 is a portion of the device when tightening and fixing an object. A plan view, FIG. 4 is an enlarged partial plan view showing a state in which an object is fastened and fixed by a wedge-shaped member, FIG. 5 is a cross-sectional view taken along the - line in FIG. 4, and FIG. FIG. 7 is a perspective view of the holder, and is a partially enlarged front view showing a state in which silver paste has been applied to the laminated chips conventionally attached to the holder. 1... feeder, 2... holder, 3... base,
4...Hopper, 6...Push pin, 7...Return pin, 21...Concave notch, 22...Wedge-shaped member, A...
Object (laminated chip).

Claims (1)

[Scope of utility model registration request] A holder having a plurality of recessed portions formed at a predetermined pitch to receive the chip members supplied from the feeder, and each recessed portion provided with a wedge-shaped member for tightening and fixing the chip member, is movable toward and away from the feeder. The base is provided with a stopper that is removably attached to the base and that aligns the end faces of the chip members supplied to each recessed part of the holder flush, and a pusher that pushes each of the wedge-shaped members in the tightening direction. A clamping device consisting of a pin and a return pin that pushes back in the loosening direction.