JPH07106767B2 - Parts positioning device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a device for aligning and positioning a part having a columnar shape or a cylindrical shape such as an electronic part and having a protrusion on its outer peripheral part in a certain direction. is there.

[Conventional technology]

Conventionally, a component supply device which continuously supplies a cylindrical component such as a case of an electronic component by a supply mechanism such as a component feeder, and makes the projections of the component uniform at the end of the component supply device. It is known from Japanese Patent Publication No.

This component supply device includes a supply means for continuously supplying the supply components in a line in the guide groove, a pin for engaging and holding the supply components at their tips, and a drive means for vertically driving the pins. , A rotating means for rotating the pin at least once, a work retainer for retaining the second supply component counted from the tip portion supplied by the supply means, and a supply component held by the pin are pushed up by the drive means. It is provided with a stopper for locking the protrusion of the supply component rotated by the rotating means so that the directions of the protrusions are uniformly aligned.

[Problems to be Solved by the Invention]

However, in the component supply device configured as described above, since the supply component is lifted from below with a pin and rotated, the component is limited to a hollow cylindrical shape, and other shapes, such as a stem with a protruding lead terminal, etc. It cannot be applied to the positioning of parts such as. Moreover, since the pin is simply fitted into the hole of the component, when the pin is rotated to bring the protrusion of the component into contact with the stopper, the component tilts with respect to the pin or the component falls from the pin. Occurrence of such a situation is unavoidable.

Also, in the case of a disk-shaped part such as a stem, parts that are continuously fed along the supply mechanism tend to overlap the front and rear parts, so as described above, only the top part can be separated with just the pin and work clamp. Can not be lifted,
Positioning was practically impossible.

Therefore, an object of the present invention is to provide a component positioning device that can be applied to the positioning of components other than a hollow cylindrical shape such as a disc shape, and can surely prevent the components from tilting, dropping, overlapping, or the like during positioning. To do.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, according to the present invention, a large number of parts having a columnar shape or a cylindrical shape and having protrusions on the outer periphery are arranged in a row by a supply mechanism and continuously supplied, and the protrusions of the parts are provided at the terminal end of the supply mechanism. In a component positioning device for uniformly aligning the directions of,
A stage that rotatably supports only the first component, and is provided between the end of the supply mechanism and the stage so that it can move forward and backward.
A separator which is inserted between the first part and the second part from the top to separate the two parts, and one side surface of which makes frictional contact with an outer peripheral surface other than the projection of the first part to follow the rotation of the first part; Driving means for linearly driving the separator while rotating the leading part by a certain angle, and when the leading part that is in frictional contact with the separator is rotated, the protrusion is locked during this rotation to keep the protrusion direction of the component constant. And a stopper surface to be aligned.

[Action]

Of the components continuously supplied in a line up to the terminal end of the supply mechanism, only the head component enters the stage provided at the terminal end, and the head component is rotatably supported by this stage. Next,
The separator arranged between the supply mechanism and the stage projects and is inserted between the leading part and the second part. As a result, even if the first part and the second part partially overlap, the two parts are reliably separated. At the same time, the side surface of the separator makes frictional contact with the leading part, so that the leading part rotates in one direction according to the linear movement of the separator. During the rotation, the protrusion of the leading part hits the stopper surface, and the rotation of the part is blocked. The separator will move slightly after that,
The direction of the protrusion of the part does not change. After the advancement of the separator is stopped, the leading part in which the directions of the protrusions are aligned is taken out from the stage, and then the separator is retracted and the same operation is repeated again.

〔Example〕

1 to 5 show an example of a component positioning device according to the present invention, and FIG. 6 shows an example of components used in the present invention.

In FIG. 6, a component 1 is a disc-shaped stem of a small electronic component or the like, has a columnar main body portion 2 at the upper portion, and has a large-diameter flange portion 3 at the lower end portion. The portion has a protrusion 4 protruding in the radial direction. Further, three lead terminals 5a, 5b, 5c are penetratingly fixed to the component 1, and one of the lead terminals 5a is electrically connected to the main body 2 made of a metal material, and the other two lead terminals are connected. 5b and 5c are insulated from the main body 2. The lead terminals 5a and 5c are provided in the diametrical direction of a triangular inscribed circle composed of three lead terminals. The projection 4 is at a position inclined by about 45 ° with respect to the two lead terminals 5a and 5c in the diameter direction.

The above component 1 is a supply mechanism such as the parts feeder shown in FIG.
10 are arranged in a line in the direction of arrow A and continuously supplied. The supply mechanism 10 includes a linear linear track 11, and a sliding surface 11a that slidably supports the lower surface of the flange portion 3 of the component 1 is formed in the upper center of the linear track 11. A guide groove 11b for inserting the lead terminals 5a, 5b, 5c is formed. The lead terminals 5a and 5c provided in the diameter direction of the component 1 slide on the right side surface of the guide groove 11b, and the other lead terminals 5b slide on the left side surface of the guide groove 11b. Therefore, the component 1 is sent with the protrusion 4 facing diagonally right front.

A stage 12 is installed close to the terminal end of the linear track 11 with a certain gap, and the components 1 supplied in the linear track 11 are sequentially transferred to the stage 12. The stage 12 is provided with a U-shaped opening groove 13 opening to the linear track 11 side and a concave supporting surface 14 on the upper part thereof. The support surface 14 is provided at the same height as the sliding surface 11a of the linear track 11. The diameter L ₁ of the opening groove 13 is set to be substantially equal to the diameter of the circle surrounding the three lead terminals 5a, 5b, 5c of the component 1, and from the center of the opening groove 13 to the arcuate side surface 14a of the support surface 14. the distance L ₂ is approximately equal to the radius R ₁ of the flange portion 3 of the component 1, the distance L ₃ to the linear side 14b of the support surface 14 further from the center of the opening groove 13 of the component 1
It is greater than the length R ₂ from the center of the to the protrusion 4. for that reason,
When the first part 1a is transferred to stage 12, the first part
The stage 1 is rotatably supported by the stage 12. Above support surface 14
Of the stopper surface 1 at the center of the
5 is formed so that the protrusion 4 of the leading part 1a can be locked by this stopper surface 15. Note that the stopper
The distance L ₄ from the edge of 15 to the end surface of the stage 12 on the linear track side is equal to or slightly smaller than the diameter of the flange portion 3 of the component 1.

In the gap between the linear track 11 and the stage 12, a flat plate-shaped separator 16 is arranged so that it can move back and forth. The separator 16 is provided with an inclined surface 16a on the side of the linear track 11 at the tip end thereof to have a sharp shape. The separator 16 has a driving means 18 including an electromagnetic solenoid, a pneumatic cylinder and the like via a rod 17.
Are linked to. Therefore, when the drive means 18 drives the separator 16 to move forward in the right direction in FIG. 1, even if the first part 1a and the second part 1b partially overlap, they can be easily separated from each other. Further, the separator 16 itself is formed of a friction material such as rubber, or the surface thereof is covered with a friction material such as a rubber coating.
Therefore, the first part 1a and the second part of the separator 16
When the 1b is separated, the front part 1a can be rotated counterclockwise by a frictional force.

Here, the operation of the component positioning apparatus having the above configuration will be described.

First, a large number of components 1 are continuously supplied while being arranged in a line along the linear track 11 of the supply mechanism 10. When the leading part 1a is guided into the stage 12 as shown in FIG. 4, the peripheral surface of the flange portion 3 hits the arcuate side surface 14a of the support surface 14 and stops, so that it can be rotated at this position. At this time, the subsequent parts 1 are sequentially pushed by the supply mechanism 10, so that a part of the second part 1b may overlap the top part 1a.

Here, when the separator 16 is moved forward by the driving means 18, the separator 16 interrupts between the leading part 1a and the second part 1b to separate the two parts 1a and 1b. At the same time, the side surface of the separator 16 makes frictional contact with the leading part 1a,
The first component 1a is rotated counterclockwise with respect to the movement of the separator 16. Then, when the component 1a rotates about 45 °, the protrusion 4 comes into contact with the stopper surface 15 and stops. After that, the separator 16 moves slightly forward, but during that time
The 1a and the separator 16 slide relative to each other, and the orientation of the component 1a does not change. The second component 1b also tries to rotate in the opposite direction to the leading component 1a as the separator 16 moves, but the lead terminals 5a, 5b, 5c are restricted in rotation by the guide groove 11b of the linear track 11, and therefore the second component 1b does not rotate. Without being pushed back to the linear track side. If the separator 16 is made of an elastic friction material such as rubber, it is possible to prevent damage to the parts 1a and 1b when they are separated.

After the protrusions 4 of the leading component 1a are aligned in the same direction as described above, the separator 16 stops and the component 1a is removed from the stage 12 by a not-shown take-out mechanism. At this time, since the separator 16 is interposed between the first component 1a and the second component 1b, the second component 1b may follow and fall off the linear track 11 when the first component 1a is taken out. There is no. After that, the driving means 18 is activated again, and the separator
16 retreats to the original position where it does not interfere with the following component 1, and thereafter repeats the same operation.

Although the above embodiment has described the case of positioning a component having a disc-shaped stem, the positioning device of the present invention can also be used when positioning a cylindrical component as shown in FIG. However, in this case, it is necessary to set the shape and arrangement position so that the separator contacts only the cylindrical portion of the component.

Further, in the above-described embodiment, an example has been shown in which the components are previously supplied in a fixed direction by the supply mechanism, but the present invention is not limited to this. However, in the case of the embodiment, since the rotation angle of the component can be small, the stroke amount of the separator can be reduced.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the components conveyed by the supply mechanism are guided to the stage, and the leading component and the trailing component are separated by the separator, and at the same time, the leading component is rotated by the stage. Since the projection is brought into contact with the stopper surface for positioning, it is not necessary to lift the component as in the conventional case, and there is no fear of dropping or tilting the component. In addition, it is not necessary to fit a pin etc. to the inside of the component, but it is rotated using the outer peripheral surface of the component, so positioning of components other than hollow cylinders such as discs and columnar shapes, and lead terminals It can also be applied to. Further, even in the case of a disc-shaped component that cannot be conventionally positioned, the overlapping front and rear components can be reliably separated and positioned. Thus, a highly versatile positioning device can be realized with an extremely simple mechanism.

[Brief description of drawings]

FIG. 1 is a plan view of an example of a positioning device according to the present invention,
2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is II in FIG.
A sectional view taken along the line I-III, FIGS. 4 and 5 are operation explanatory views at the time of separation / rotation, FIG. 6 is a perspective view of an example of a component used in the present invention, and FIG. 7 is another example of the component. FIG. DESCRIPTION OF SYMBOLS 1 ... Component, 1a ... Leading component, 1b ... Second component, 10 ... Supply mechanism, 11 ... Linear track, 12 ... Stage, 13 ... Opening groove, 14 ... Support surface, 15 ... Stopper surface, 16 ... Separator, 18
… Driving means.

Claims (1)

[Claims] 1. A plurality of parts having a columnar shape or a cylindrical shape and having projections on the outer periphery are arranged in a row by a supply mechanism to be continuously supplied, and the projections of the parts are uniformly aligned at the end of the supply mechanism. In the component positioning device, the stage is provided at the end of the supply mechanism and rotatably supports only the first part, and the stage is provided between the end of the supply mechanism and the stage so that the stage can move forward and backward. From the second part to separate the two parts, and one side is frictionally contacted with the outer peripheral surface other than the protrusion of the first part to rotate the first part following and the first part is fixed. Drive means for linearly driving the separator during angular rotation, and when the leading part that is in frictional contact with the separator is rotated, the protrusion is locked during this rotation and the protrusion of the component A component positioning device comprising: a stopper surface that aligns the directions in a uniform manner.