JPH0435290B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a rotary alignment device for elongated parts, particularly a rotary alignment device that automatically adjusts and aligns the rotational angular position about the longitudinal axis of the elongated parts. It is related to the device.

[Prior Art] In various parts assembly processes, various conveying means such as belt conveyors are used to quantitatively supply parts to each processing process.

When transporting such various parts, it is desired that they be aligned and supplied in a predetermined direction and position so that secondary processing can be performed easily and quickly.

However, when carrying out quantitative transfer of randomly piled up parts, it is extremely difficult to adjust and unify the directions and positions of each part before transferring them.

For example, when transporting a long part with a polygonal side cross section, it is better to keep the longitudinal direction constant and transport it in parallel alignment than to transport it by hooking it on a pair of claws. It can be done easily. However, it is difficult to adjust the elongated component to place it on the correct mounting surface, that is, to adjust the rotational position of the elongated component around the longitudinal axis.

Therefore, conventionally, the operator checks whether the long part is placed on a predetermined surface, manually adjusts the position of the long part in the rotation direction, or uses a visual sensor to check the rotation angle of the long part. The position is detected, and based on this result, the rotation is adjusted manually or by a rotating device.

[Problems to be Solved by the Invention] However, in such conventional rotation angle position adjustment around the longitudinal axis of a long part, the long part is placed on a predetermined mounting surface and transferred. There was a problem in that the worker had to constantly monitor whether or not the worker was present.

A visual sensor detects the rotational angular position of each long part individually, and if the long part is not in the specified position, the equipment can be used to rotate the long part manually or by a rotating device to the specified position. In addition to being complicated and expensive, there were problems in that work efficiency was reduced.

Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems, and is a rotational alignment device for long parts that can automatically adjust the rotation angle position of the long parts to be transferred to each processing process. Our goal is to provide the following.

[Means for Solving the Problems] In order to achieve the above object, the rotary alignment device for elongated parts according to the present invention has two chucks that clamp the elongated parts from both ends, and One of the chucks is a rotating chuck for applying rotational force to the elongated part about its longitudinal axis, and the other chuck has a convex surface and a long part for holding the elongated part. A non-rotating positioning chuck is configured such that it can engage with the clamped end of the elongated part when the elongated part is at a predetermined rotation angle position, and the rotation of the elongated part by the rotating chuck is controlled by the positioning chuck. It is characterized in that the elongated parts are aligned and arranged by stopping the engagement at a predetermined rotation angle position.

[Function] According to the configuration of the present invention described above, a predetermined rotational force is applied to the long part by the rotating chuck of the two chucks that hold the long part, and this rotational force causes the long part to be rotated. Parts rotate.

The other chuck, the positioning chuck, engages the elongated component at a predetermined rotation angle position and stops its rotation.

This means that the rotation stopping force applied to the long part by the long part holding part of the positioning chuck engaging with the clamped end of the long part is the rotational force applied to the long part by the rotating chuck. This is due to the fact that it becomes larger.

After the rotation of the elongated parts is stopped, the supply of rotational force to the elongated parts by the rotation chuck is stopped, and then the elongated parts are aligned and arranged by the moving mechanism.

Thereby, it becomes possible to easily achieve automation of the rotation angle position adjustment around the longitudinal axis of the elongated component by a mechanism.

[Embodiments] Preferred embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a schematic cross-sectional view showing a preferred embodiment of the apparatus for rotating and aligning elongated parts according to the present invention, and a cylinder 12 is installed in the main body 10 of the apparatus as a mechanism for moving the elongated parts. A movable plate 16 is connected to the piston of the cylinder 12 via a cylinder joint 14.
and 18 are attached, and operate in accordance with the vertical movement of the piston to move the elongated part up and down.

The side surface of the main body 10 of the apparatus is provided with chucks 20 and 22 for holding a long component from both ends.

The chuck 20 is a rotating chuck for applying a predetermined rotational force to a long component to rotate it, and is rotationally driven by a motor 24 provided on the side of the device main body 10.

On the other hand, the chuck 22 is a positioning chuck for positioning the elongated part in the rotational direction, and a rotation prevention bar 22 is used to prevent the elongated part from rotating in the rotational direction.
It is fixed at .

That is, the rotation prevention bar 2 is attached to the shaft of the chuck 22.
3 is fixed, and the chuck 22 cannot be rotated.

Cylinders 26 and 2 are provided in the apparatus body 10 as a drive mechanism for holding both ends of a long part by the rotating chuck 20 and the positioning chuck 22.
8 is provided. Piston 2 of cylinder 26
7 is attached and fixed to the chuck case 30 to which the rotating chuck 20 is attached,
The entire chuck case 30 is caused to reciprocate horizontally on a slider 31. The piston 29 of the cylinder 28 is connected to the positioning chuck 22.
The chuck case 32 is fixed to a chuck case 32 in which a slider 33 is provided, and the chuck case 32 as a whole is moved horizontally reciprocatingly on a slider 33.

This reciprocating movement of the chuck cases 30 and 32 causes the two chucks 20 and 22 to clamp and release the long parts.

FIG. 2 is a diagram showing the structure of the rotating chuck 20, which is a characteristic component of the device of the present invention. FIG. 2A is a partially cutaway front view of the main body of the rotating chuck 20, and FIG. 2B is a A side view is shown in each case.

In the figure, the elongated part holding part 20a is provided with a recess 36 into which the end of the elongated part is inserted, and a tapered part 38 is formed at the tip to facilitate insertion of the elongated part. ing. This clamping part 2
The recess 36 at 0a is formed of a material with high resistance, such as rubber, in order to obtain the resistance necessary to rotate the elongated part by the rotational force of the rotating chuck 20.

Further, the rotating chuck 20 is formed with a shaft portion 20b, and the shaft portion 20b is connected to the chuck case 3.
0 is rotatably mounted.

The shaft portion 20b is further connected to a motor 24 and rotationally driven by the motor 24.

FIG. 3 is a diagram showing the structure of the other chuck, the positioning chuck 22. FIG. 3A shows a partially cutaway front view of the positioning chuck body, and FIG. 3B shows a side view.

In the figure, the surface 4 of the holding part 22a of the elongated part
0 is formed into a spherical shape to reduce resistance so that the long parts can rotate while in contact with each other.

Furthermore, the holding portion 22a has an engagement that can engage with an end of the elongated component when the elongated component rotates to a predetermined position, that is, a rotation angle position at which the elongated component is placed on the correct mounting surface. A joint is formed.

In this example, the engaging portion has a recess 42 formed in a female shape that matches the shape of the clamped end of the elongated component.

The shaft portion 22b of the positioning chuck 22 is fixed and attached to the chuck case 32 by the rotation prevention bar 23 so as not to rotate in the direction of rotation of the elongated component.

A guide ring is attached to the clamping part 22a of the positioning chuck 22 in order to prevent misalignment between the gripping part 22a of the elongated component and the clamped end of the elongated component, thereby preventing engagement.

FIG. 4 shows a cross-sectional view of this guide ring 44, and the inner surface of the elongate component insertion side end of the guide ring formed in a cylindrical shape has a tapered portion 46.
is formed to facilitate insertion of the end of the elongated part into a predetermined position.

FIG. 5 shows a schematic cross-sectional view of the guide ring 44 attached to the clamping part 22a of the positioning chuck 22, and the inner surface of the guide ring 44 is closely fixed to the outer surface of the clamping part 22a.

Next, regarding the operation of this example, it is
An example will be explained in which rotational alignment of IC stacks is performed to accommodate a plurality of ICs.

The rotary alignment device for elongated parts according to the present invention includes:
It is installed in the middle of the transfer path of the IC stick 46 (see FIG. 1) by a conveyor or the like, and the IC stick 46 that is being transferred is adjusted to a predetermined rotational angle position before flowing along the transfer path.

First, in FIG. 1, the IC stick 46, which has been transferred by a conveyor (not shown), is lifted by the moving plates 16 and 18 to the clamping position shown by the broken line in the figure by the operation of the cylinder 12.

Next, by actuating the cylinders 26 and 28, the chuck cases 30 and 32 are horizontally moved in the direction of the IC stick 46. As a result, the rotating chuck 2
IC stick 4 by positioning chuck 22 and 0
6 is held in place.

When the IC stick 46 is clamped, the component moving plates 16 and 18 are moved to their original positions by the actuation of the cylinder 12.

The rotating chuck 20 is rotationally driven by the motor 24, which applies rotational force to the IC stick 46 fitted into the recess 36 of the rotating chuck, causing it to rotate.

On the other hand, since the surface of the clamping portion of the positioning chuck 22 is formed into a spherical shape as shown in FIG. 3A, it contacts the clamped end of the IC stick 46 at approximately one point.

Therefore, when the IC stick 46 is not at a predetermined rotational angle position, almost no rotation stopping force is generated, so that rotation of the IC stick 46 by the rotation chuck 20 is not hindered.

When the IC stick 46 reaches a predetermined rotation angle position and engages with the recess 42 formed on the surface of the clamping part of the positioning chuck, a stopping force greater than the rotational force of the rotation chuck 20 is applied to the IC stick 46. Added by 22. This force causes the IC stick 46 to stop rotating.

In this embodiment, the holding portion 2 of the positioning chuck 22 is
2a is formed with a female-shaped recess 42 that matches the shape of the clamped end of the IC stick 46, so that the stopping force on the IC stick 46 is large and its rotation can be completely stopped.

That is, this is because the resistance generated by engagement with the clamping part 22a of the positioning chuck 22 is greater than the resistance applied by the IC stick 46 being fitted into the recess 36 of the rotational chuck 20, so that the IC stick 46 cannot rotate. will be stopped.

When the rotation angle position adjustment of the IC stick 46 by both chucks 20 and 22 is completed, the cylinder 12 raises the movable plates 16 and 18 again and
Contact the bottom of the stick 46. At this time, in this embodiment, two small cylinders 48 and 5 are provided on the upper surface of the case of the main body 10.
0, the protrusions 52 and 54 descend and the IC
Push down the stick 46 from above. These projections 52 and 54 are made of a resilient material so as not to damage the IC stick 46. As a result, the IC stick 46 is connected to the moving plate 16.
and 18 and the protrusions 52 and 54 from above and below, thereby preventing movement in the horizontal direction.

Then, the chucks 20 and 22 are horizontally moved in a direction away from the IC stick 46 by the actuation of the cylinders 26 and 28, thereby opening the IC stick 46. At this time, lateral displacement of the IC stick 46 is effectively prevented by the action of the projections 52 and 54.

Next, the component moving plates 16 and 18 are lowered by the operation of the cylinder 12, and the IC sticks 46 placed thereon are aligned at a predetermined rotation angle position and returned to the transfer path.

This series of rotation angle position adjustment operations
This is done for each IC step 46, and all IC steps 46 are phase-adjusted to a predetermined rotation angle position and then supplied to the next process.

In this embodiment, the rotary chuck 20 is driven to rotate by detecting that the IC stick 46 has engaged with the positioning chuck 22 at a predetermined rotation angle position, and after this detection, controlling the motor 24 to stop the rotation. There is.

As a device for detecting that the IC stick 46 is engaged with the positioning chuck 22, in this example, a detector 56 such as an optical sensor is provided inside the chuck case 32. This detector 56 detects when the positioning chuck 22 has moved forward from the position where it contacts the end of the IC stick 46 to the position where it engages with the end of the IC stick 46 by checking the rotation prevention bar 23 fixed to the shaft of the chuck 22. The detection is made by detecting the forward movement of.

The forward movement of the positioning chuck 22 when engaged is caused by
Spring 5 which is a biasing means in the direction of IC stick 46
8 ensures that this is done.

The rotational operation control of the rotating chuck 20 is not limited to the control based on the detection result of the detector 56 of the above embodiment. For example, if the rotating chuck 20 is
It is also possible to always make only one revolution per step 46.

[Effects of the Invention] As explained above, according to the rotary alignment device for long parts according to the present invention, the rotational angle position adjustment when feeding long parts to each processing process can be automatically performed using a simple mechanism. And it can be done reliably.
This makes it possible to reduce labor and increase efficiency in the process of transferring long parts.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view showing a preferred embodiment of the present invention, FIGS. 2A and B are partially cutaway front and side views of a rotating chuck used in the embodiment, and FIG. 3A is a schematic sectional view showing a preferred embodiment of the present invention.
and B are partially cutaway front and side views of the positioning chuck used in this embodiment, FIG. 4 is a sectional view of the guide ring attached to the positioning chuck, and FIG. 5 is a state in which the guide ring is attached to the positioning chuck. FIG. 10... Device main body, 12, 26, 28... Cylinder, 16, 18... Moving plate, 20... Rotating chuck, 22... Positioning chuck, 46...
IC stuc.

Claims (1)

[Scope of Claims] 1. A moving mechanism for moving a long part to a predetermined position; and two chucks for holding the long part from both ends, one chuck of the two chucks for holding the long part from both ends. a rotating chuck for supplying a predetermined rotational force to the part to rotate it around a longitudinal axis; the other chuck is a fixed positioning chuck that does not rotate in the rotational direction of the elongated part; The long component clamping part has a convex surface and engages with the clamped end of the long component when the long component is at a predetermined rotational angle position to keep the long component in a non-rotating state. A long part having a shape that can be assembled together, and after the rotation of the long part is stopped by a positioning chuck, the supply of rotational force by the rotation chuck is stopped, and the long part is aligned and arranged by the moving mechanism. Rotary alignment device. 2. In the rotational alignment device for elongated parts according to claim 1, the engageable shape of the elongated part holding part of the positioning chuck is a female shape that matches the shape of the end face of the elongated part to be held. A rotary alignment device for long parts, characterized by: 3. In the rotational alignment device for elongated parts according to claim 1 or 2, the positioning chuck is provided with means for biasing the elongated parts in the direction of the elongated parts, and the positioning chuck is provided with a biasing means toward the elongated parts at the predetermined rotation angle position. A rotary alignment device for elongated parts, characterized in that it facilitates engagement with ends of elongated parts.