JPH05294444A - Cutting out device - Google Patents

Abstract

PURPOSE:To shorten a cut out time, restrict irregularity and improve separableness by pushing a work stopped at a cut-out position against a shutter and forcibly cutting it out to a cut-cut stage. CONSTITUTION:When an operating member 9 is actuated by a drive unit 10, a shutter 8 is rotated in an opening/closing direction around a supporting axis 13. With the rotation of the shutter 8 in an opening direction, the first work 25 is cut out from a cut-out position to a cut-out stage 24. When the shutter 8 is reset to a closing direction in such a state, a work 25 slid down following the first work is pushed up by the stopper 12 of the shutter 8 to a guide plate 3 side and pushed back somewhat to the rear end side of a rail member 1, so that it is held between the guide plate 3 and the stopper 12 by an elastic member 4 protruded from the guide plate 3 to a guide groove and stopped at the cut-out position. When the shutter 8 is rotated in an opening direction in such a state, the following work 25 stopped is cut to the cut-out stage 24 so as to be pushed out to the stopper 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting mechanism for cutting out a work piece one by one from a rail member installed at an inclination and arranging the work pieces in a line.

[0002]

2. Description of the Related Art For example, in an IC manufacturing process, an individual piece I
In IC handlers, marking devices, lead scanners, etc. that process C, individual ICs contained in a tubular magazine are separated and aligned one by one, and picked up by a robot or the like in the next process (hereinafter, A device for moving to a "pick position"), that is, a cutting device is required. FIG. 4 is a schematic configuration side view showing an example of a cutting device used in a conventional IC handler. In the figure, the cutting device includes a rail member 51 installed at an angle of 30 to 40 degrees and a rail member 5
1 is provided with a shutter 60 provided on the lower end side of the rail member 1 and a cutting stage 52 arranged in a state of being connected to the lower end side of the rail member 51, and the individual IC 50 sliding down on the rail member 51 is placed on the cutting stage 52. It is supposed to be placed. A straight guide 54 is attached to the lower part of the front side of the cutting stage 52 via a support shaft 53, and the straight guide 54 moves back and forth in conjunction with the operation of the cylinder 55.

On the other hand, a cam follower 58 is attached to the lower rear portion of the cutting stage 52 via an arm 56 and a support shaft 57. The arm 56 has an opening / closing pin 59 corresponding to the shutter 60 of the rail member 51.
Is provided in a state of being extended rearward. Further, a plate cam 61 is arranged below the lower end of the rail member 51.

Reference numeral 62 in the drawing is a slide adjusting screw for adjusting the sliding amount of the straight guide 54, and reference numeral 63 in the drawing is a slide adjusting screw for preventing the individual IC 50 on the rail member 51 from falling off. It is a guide plate arranged on the upper surface side.

Next, the operation of this cutting device will be described. The cutting stage 52 here is the cylinder 5
By the operation of 5, the linear guide 54 is moved to the pick position shown by the dotted line and the take position shown by the solid line in the figure. Then, when the cutting stage 52 is at the pick position, the shutter 60 is closed, and the individual IC 50 that has slid down the rail member 51 is stopped (standby) on the rail member 51.

Next, when the cylinder 55 is operated and the cutting stage 52 is pulled and moved to the cylinder 55 side together with the rectilinear guide 54, the cam follower 58 causes the plate cam 6 to move.
It contacts the inclined surface 61a. If it is further pulled and moved as it is, the cutting stage 52 is rotated by the guide of the inclined surface 61a until it becomes the same inclination as the inclination of the rail member 51, and thereafter, it is connected to the lower end side of the rail member 51.
At this time, the shutter 60 is pushed and opened by the opening / closing pin 59, and only one individual IC 50 is naturally dropped and placed on the cutting stage 52.

Subsequently, the individual IC 50 on the cutting stage 52 is adsorbed by a vacuum groove (not shown), and further moved by the operation of the cylinder 55 to the pick position together with the linear guide 54. In addition, this movement causes the shutter 60
The opening / closing pin 59 is further separated, and the shutter 60 is closed again,
A series of operations ends. On the other hand, the individual IC 50 cut out by the above cutting device is sent to a test process by a pick-and-place or a robot hand if it is an individual IC handler, and processed, and if it is a marking machine, it goes to the stamping process by the same method. It will be sent and processed.

[0008]

However, in the above-described conventional cutting device, since the individual IC 50 is designed to slide down on the rail member 51 installed at an inclination, the shutter 60 is opened. There is a problem that it takes too much time until the individual ICs 50 are cut out to the cutting stage 52 (hereinafter, referred to as cutting out time), and the cutting time between the individual ICs 50 also varies. Further, burrs generated in the molding process may remain on the end faces of the individual ICs 50 without being completely removed. In such a case, the remaining burrs overlap with each other and become caught.
There is an inconvenience that the individual ICs 50 are not separated smoothly.

The present invention has been made in view of the above problems, and it is possible to shorten the cutting time, suppress the variation in the cutting time between the works, and improve the separability between the works. An object is to provide a cutting device.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, in which a guide groove for guiding the traveling direction of a work is formed along the longitudinal direction and is inclined at a predetermined angle. A rail member installed, a guide plate mounted on the upper surface side of the rail member so as to cover the guide groove, and one end side of which is a fixed portion and the other end side of which is a free end portion. An elastic member whose part is fixed to the guide plate, and whose free end projects from the guide plate toward the guide groove at the cutout position of the rail member, and one end of which is a mounting part and the other end of which is a stopper part And
The mounting portion is pivotally mounted on a support shaft provided on the lower surface side of the rail member, and the stopper portion of the shutter is arranged so as to project above the guide groove path at the cutout position, and the operating member connected to the support shaft is operated. , A drive unit for rotating the shutter in the opening direction and the closing direction about the support shaft.

[0011]

In the slicing device of the present invention, when the operating member is actuated by the driving of the driving portion, the shutter rotates about the support shaft in the opening direction and the closing direction. Further, the first work that slides down along the guide groove of the rail member comes into contact with the stopper portion of the shutter that is arranged so as to project on the guide groove, and is stopped at the cutting position of the rail member. Here, when the shutter is rotated in the opening direction, the first work stopped at the cutting position is cut out to the cutting stage. When the shutter is rotated in the closing direction from this state, the next work that has slid down on the guide groove after the first work is pushed up to the guide plate side by the stopper part of the shutter, It is pushed back to the edge side. Then, it is stopped at the cutout position of the rail member while being sandwiched between the guide plate and the stopper portion of the shutter. Further, when the shutter is rotated in the opening direction from this state, the next work stopped at the cutting position is cut out to the cutting stage so as to be pushed out by the stopper portion of the shutter. After that, the subsequent works are sequentially cut out to the cutting stage.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic configuration side view of a cutting device according to an embodiment. In the figure, 1 is a rail member, which is installed at a predetermined angle, for example, 30 to 40 °. A guide groove 2 is formed in the rail member 1 along the longitudinal direction. The guide groove 2 guides the traveling direction of the work (in this example, an individual IC) that slides down the rail member 1, and the individual IC 2 to be described later.
The cross section is formed in a substantially inverted U shape (see FIG. 3) so that the terminal portion 5 can be escaped. Here, the rail member 1 is
A predetermined position on the lower end side (a position where a workpiece to be cut next stands by) is set as a cutting position.

A guide plate 3 is attached to the upper surface of the rail member 1 so as to cover the guide groove 2. The guide plate 3 is a piece I that slides down along the guide groove 2.
The purpose is to prevent C from falling off the rail member 1.

On the other hand, reference numeral 4 in the drawing denotes an elastic member composed of, for example, a leaf spring, and this elastic member 4 has one end side as a fixed portion 5 and the other end side as a free end portion 6. Among these parts, a small hole (not shown) is opened through one fixing part 5. The fixing portion 5 is fixed to the guide plate 3 by a mounting screw 7 screwed into a screw hole (not shown) of the guide plate 3 through the small hole. On the other hand, the other free end 6 is arranged so as to project from the guide plate 3 to the guide groove 2 side at the cutout position of the rail member 1 by partially bending the tip end side of the elastic member 4, for example. ..

Further, in FIG. 1, 8 is a shutter and 9 is a shutter.
Is an operating member, and 10 is a drive unit, and their configurations will be described below with reference to FIGS. 1 and 2 to 4. Here, FIG. 2 is an external side view of the clipping device in the embodiment, FIG. 3 is a view taken in the direction of arrow A in FIG. 2, and FIG. 4 is a view taken in the direction of arrow B in FIG.

First, the structure of the shutter 8 will be described. It has a mounting portion 11 at one end and a stopper portion 12 at the other end. Of these parts, one mounting part 1
In FIG. 1, a through hole (not shown) is opened. The through hole is fitted to a support shaft 13 provided on the lower surface side of the rail member 1. Further, a set screw 14 is screwed into the mounting portion 11, and the mounting portion 11 is pivotally attached to the spindle 13 by pressing the tip end of the set screw 14 against the outer surface of the spindle 13. On the other hand, the other stopper portion 12 is provided with the cutout groove 1 formed on the front end side of the rail member 1.
When the rail member 1 is fitted in the rail 6, the rail member 1 is arranged so as to project above the guide groove 2 at the cutout position. Here, the support shaft 13 described above is rotatably supported by a pair of bearing members 15, 15 fixed to both sides of the lower surface of the rail member 1.

The operating member 9 includes a substantially V-shaped rotating lever 17 pivotally attached to one end of the support shaft 13, a cam follower 18 attached to the lower end of the rotating lever 17, and an upper end of the rotating lever 17. It is constituted by a hooking pin 19 provided on the. Here, a latch pin 20 is provided on the side surface of the rail member 1, and a coil spring 21 is provided on the latch pin 20 on the rail member 1 side and the latch pin 19 on the operation member 9 side.
The end of is locked. The operating member 9 is constantly urged in one direction by the pulling force of the coil spring 21. At the same time, in this state, the shutter 8 described above is pressed against the end wall of the cutout groove 16 by the pulling force of the coil spring 21, whereby the stopper portion 1 of the shutter 8 is pressed.
2 is held in a state of protruding above the guide groove 2 of the rail member 1.

The drive unit 10 is, for example, an air cylinder 2
2 and a pressing member 23 attached to the tip of the rod of the air cylinder 22. The pressing member 23 is arranged close to the lower outer peripheral surface of the cam follower 18 described above. In addition to the structure using the air cylinder 22, the drive unit 10 may be modified in various ways, for example, using a linear motion cam or using a crank mechanism.

Further, in FIG. 1, reference numeral 24 is a cutting stage, and the cutting stage 24 is arranged in a state of being connected to the lower end side of the rail member 1 by a moving means (not shown). The individual ICs 25 (described later) that have slid down along the guide groove 2 of the rail member 1 are
From the cut-out position, each piece is cut out to the cut-out stage 24.

Next, the operation of the cutting device according to this embodiment will be described. First, when the drive unit 10 is driven from the state shown in FIG. 1, the rod of the air cylinder 22 extends and the pressing member 23 is displaced upward. As a result, the cam follower 18 of the operating member 9 is pushed up by the pressing member 23, and the rotating lever 17 of the operating member 9 rotates in a predetermined direction. Further, the support shaft 13 also rotates according to the rotation of the rotating lever 17, and the shutter 8 rotates in the opening direction C according to the rotation of the support shaft 13. When the shutter 8 is thus rotated in the opening direction C, the guide groove 2 is opened at the cutout position of the rail member 1, so that the individual IC 25 slides down on the rail member 1 and moves from the cutout position to the cutout stage 24. Is cut out (see FIG. 5).

Subsequently, when the rod of the air cylinder 22 is pulled back by the drive of the driving unit 10 to displace the pressing member 23 to the original position, the pulling force of the coil spring 21 causes the rotating lever 17 of the operating member 9 to move in a predetermined direction. Rotate,
Accordingly, the shutter 8 rotates in the closing direction D. At this time, the stopper portion 12 of the shutter 8 comes into contact with the lower surface of the next individual piece IC25 that has slid down to the cutout position following the individual piece IC25 that was cut out first, and then the next individual piece IC25 is directly fed to the guide plate 3 as it is. Push it up to the side. At that time, piece I
A pressing force due to the bending of the elastic member 4 is applied to the upper surface of C25, and this pressing force causes a frictional force at the contact portion between the individual IC 25 and the shutter 8. Then, by further rotating the shutter 8 while the frictional force is generated,
The individual IC 25 is pushed back to the upper end side of the rail member 1 to some extent (about 2 mm). Further, the upper surface of the individual IC 25 pushed up by the stopper portion 12 is pressed against the free end portion 6 of the elastic member 4 arranged so as to project from the guide plate 3, and then the guide plate 3 and the stopper portion 12 of the shutter 8 are formed. In the state of being sandwiched between the individual ICs 25, the individual ICs 25 in the cutout state are held (see FIG. 6).

From this state, the shutter 8 is opened again in the opening direction C.
When rotated to, the frictional force generated at the contact portion between the stopper portion 12 of the shutter 8 and the lower surface of the individual IC 25 causes
The individual IC 25 is cut out to the cut-out stage 24 by being pushed out by the stopper portion 12 (see FIG. 7). After that, the same operation is repeated, and each individual IC
Each 25 is cut out from the cut-out position of the rail member 1 to the cut-out stage 24.

As described above, in the cutting device of the present embodiment, after the first individual piece IC25 is cut out, the second and subsequent individual pieces I are stopped at the cutting position subsequently.
C25 is forced out by the stopper portion 12 of the shutter 8 and is forcibly cut out to the cutout stage 24. As a result, the cutting time is significantly shortened and variation in the cutting time among the individual ICs 25 is suppressed as compared with the conventional cutting method by natural drop.

Further, after the individual piece IC25 cut out on the cutting stage 24, the next individual piece IC25 which is subsequently stopped at the cutout position is pushed up by the stopper portion 12 of the shutter 8 toward the guide plate 3 side, and at the same time, railed. Since it is pushed back to the upper end side of the member 1 to some extent, even if burrs remain on the end faces of the individual ICs 25, catching due to overlapping of burrs does not occur, and separation between the individual ICs 25 is ensured. Will be done.

Although the shutter 8 and the operating member 9 are separately provided in the structure of the above embodiment,
The present invention is not limited to this, and the shutter 8 and the operating member 9 may be integrally configured. Further, in the cutting device of the present embodiment, the driving unit 10 that opens and closes the shutter 8 is linked to a driving system for moving the cutting stage 24, a driving system of a robot that picks up the cut work, and the like. By doing so, it is possible to perform a more stable and stable cutting operation.

[0026]

As described above, according to the present invention, the work stopped at the cutting position of the rail member is forcibly cut out to the cutting stage by being pushed out by the stopper portion of the shutter. The cutting time is significantly shortened as compared with the conventional cutting method by free fall, and the variation in the cutting time between the works is suppressed. In addition, the work that is stopped at the cutting position after the work cut on the cutting stage is pushed up to the guide plate side by the stopper part of the shutter and is pushed back to the upper end side of the rail member to some extent. Therefore, even if burrs remain on the end faces of the workpieces, the burrs do not catch on each other and the workpieces can be reliably separated. This greatly improves the separability between the works in the cutting device.

[Brief description of drawings]

FIG. 1 is a schematic side view of a cutting device according to an embodiment.

FIG. 2 is a side view of the outer appearance of the cutting device according to the embodiment.

FIG. 3 is a view on arrow A in FIG.

FIG. 4 is a view on arrow B of FIG.

FIG. 5 is an operation explanatory view (1) of the cutting device.

FIG. 6 is an operation explanatory view (No. 2) of the cutting device.

FIG. 7 is an operation explanatory view (3) of the cutting device.

FIG. 8 is a side view of a conventional schematic configuration.

[Explanation of symbols]

 1 rail member 2 guide groove 3 guide plate 4 elastic member 5 fixed part 6 free end part 8 shutter 9 operating member 10 drive part 11 mounting part 12 stopper part 25 piece IC (work)

Claims (1)

[Claims] 1. A rail member provided with a guide groove for guiding a traveling direction of a work along a longitudinal direction and installed at an inclination of a predetermined angle; and the guide groove on the upper surface side of the rail member. A guide plate mounted in a covering state, one end side of which is a fixed portion and the other end side of which is a free end portion, wherein the fixed portion is fixed to the guide plate, and the free end portion of the rail member is An elastic member projecting from the guide plate to the guide groove path side at the cutting position; one end side being a mounting portion and the other end side being a stopper portion, wherein the mounting portion is the lower surface side of the rail member. A shutter mounted on a support shaft provided on the shaft, and the stopper portion projecting above the guide groove path at the cutout position, and an operating member connected to the support shaft are operated to center the support shaft around the support shaft. Previous Clipping device being characterized in that includes a driving unit that rotates the shutter and opening and closing directions.