JPH09216132A - Part inserting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely insert a part into a part insertion hole even if a clearance is very small and a chamfer in an insertion part, edge and a chamber in the part insertion hole edge are very small. SOLUTION: An engine valve 21 is held by means of a gripping claw 11 in a chuck main body 10, stood on a valve insertion hole slantingly, and held while leaned against a guide part 5 in a receiving block 4. Then, the lower end part of the engine valve 21 is pressed onto the edge of the receiving block 4 side of the valve insertion hole, and the engine valve 21 is pressed by means of the receiving block 4 so as to be stood vertically, and consequently, the lower end of the engine valve 21 is fitted in the valve insertion hole and the engine valve 21 is inserted into the valve insertion hole by means of a pushing device 6 arranged on the upper face of the receiving block 4.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a component insertion device. In particular, the present invention relates to an apparatus for inserting a part having a straight insertion part, such as an engine valve or various stems, into a part insertion hole.

[0002]

2. Description of the Related Art When an insertion part is inserted into a part insertion hole having a small clearance, a tapered chamfer is formed at an end of the insertion side of the insertion part or at an edge of the part insertion hole in order to facilitate insertion of the insertion part. Is generally applied.

[0003] However, depending on the type of the inserted part, there are cases where only a very small chamfer is formed on the inserted part and the part insertion hole, or cases where it cannot be performed.
In such a case, it has been difficult to automatically insert the insertion component into the component insertion hole.

For example, in an engine assembly process,
The engine valve held in the vertical position was directly inserted into the component insertion hole of the cylinder head by applying a load from the vertical direction, but the chamfer provided at the tip of the engine valve and the chamfer provided at the component insertion hole were few. Therefore, insertion failure often occurs. For this reason, the engine valve is inserted using a component insertion device using a correction displacement sensor, but such a component insertion device is expensive.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the prior art, and has as its object the purpose of reducing the number of chamfered parts and component insertion holes.
An object of the present invention is to provide a component insertion device that can be reliably inserted with a simple configuration.

[0006]

According to a first aspect of the present invention, there is provided a component insertion device for inserting a component having a straight rod shape into a component insertion hole. A support member that supports the component standing upright on the component insertion hole in a tilted state above the component insertion hole from a substantially side direction with respect to the component insertion direction; A supporting member moving device for erecting the component parallel to the component insertion direction by moving the component in a direction parallel to the component insertion direction. And a pushing device.

According to a second aspect of the present invention, in the component insertion device according to the first aspect, the component, which is erected on the component insertion hole, is brought into contact with an edge of the component insertion hole. It is characterized by having a presser for pressing.

According to a third aspect of the present invention, in the component insertion device according to the first aspect, the support member has a guide portion for inserting the component into the component insertion hole in parallel with the component insertion direction. It is characterized by having.

[0009]

According to the first aspect of the present invention, the component supplied to the component insertion hole at an angle is supported by the support member from a substantially lateral direction. Here, the side direction refers to a direction that is not parallel to the component insertion direction. Next, the component is set up in parallel with the component insertion direction by moving the support member with the support member moving device. In a state where the component is tilted, a part of the tip of the component is partially fitted in the component insertion hole, and thus the tip of the component is positioned in the component insertion hole. When the component is gradually raised, the component is set up with the tip of the component positioned in the component insertion hole, and is set up with the tip of the component aligned with the component insertion hole. Therefore, the component can be reliably inserted into the component insertion hole by being pushed by the pushing device.

According to the second aspect of the present invention, since the component which is erected on the component insertion hole is pressed by the presser so as to contact the edge of the component insertion hole, the component is erected when the component is erected. It can be prevented from coming off the insertion hole, and the insertion of the component can be surely performed.

According to the third aspect of the present invention, since the guide member for inserting the component in parallel with the component insertion direction is provided on the support member, the component does not tilt when the component is inserted into the component insertion hole. And the insertion of parts can be ensured.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a schematic side view showing a component insertion device according to an embodiment of the present invention. This component insertion device 1 will be described with reference to FIG. A horizontal slider 2 (support member moving device) composed of an air actuator or a motor driven NC (numerical control type) slider is fixed to a fixed member such as an apparatus frame. The receiving block 4 (support member) is attached. When the horizontal slider 2 is driven, the movable part 3
The receiving block 4 attached to the tip is moved in the horizontal direction.

The receiving block 4 is a member for supporting and supporting the inserted component from the side, and as shown in FIG.
A groove-shaped guide portion 5 is provided in a concave shape. Thus, by supporting the insertion part from the side with the guide part, FIG.
As shown in (a), the insertion part can be positioned with the axis of the insertion part being aligned with the center plane of the V-shaped guide part 5.

Further, a pushing device 6 composed of an air actuator is fixed to the upper surface of the receiving block 4.
The press-fit rod 7 protruding from the lower surface of the pushing device 6 protrudes in parallel with the guide portion 5. Pushing device 6
Is fixed to the upper surface of the receiving block 4 so that the axis of the insertion component positioned in the guide portion 5 and the axis of the press-fit rod 7 substantially coincide with each other.

Reference numeral 8 denotes a horizontal table for mounting a work having a component insertion hole, and positioning means (not shown) for mounting the work at a predetermined position in a positioned state.
It has.

In front of the receiving block 4, a component transfer device 9 is provided.
Are arranged. The component transfer device 9 includes a pair of gripping claws 11 as shown in FIG. 2B for gripping components, a chuck body 10 having a built-in mechanism for driving the gripping claws 11, and a chuck body. 10 and the shaft 2
And a rotation mechanism unit 25 that rotates around the center 6. Thus, the chuck body 10 and the gripper 1
By driving the rotation mechanism unit 25, 1 is rotated between a straight posture in which the component is held vertically and a posture in which the upper end of the held component is tilted forward to the receiving block 4 side.

The component transfer device 9 includes a horizontal moving device 13 for moving the chuck body 10 along a rail 12 between the component supply position and the upper surface of the table 8, for example.
Lifting device 14 for raising and lowering rotation mechanism unit 25
And The specific configuration of the means for moving the chuck body 10 of the component transfer device 9 in the horizontal direction and the vertical direction is not particularly limited, but a mechanism as simple as possible is preferable.

Next, the engine valve 21 (insertion part)
The operation of the component insertion device 1 will be described with reference to FIGS. 4A to 4E by taking as an example the case where the stem portion 22 is inserted into the valve insertion hole 24 (component insertion hole) of the cylinder head 23. 6 (a), 6 (b), 6 (c), and 6 (d) show changes in the cross-sectional shape of the stem portion 22 taken along a horizontal plane passing through the open end of the valve insertion hole 24.

First, the cylinder head 23 is placed and positioned on the upper surface of the table 8 in advance. Therefore, the valve insertion hole 24 of the cylinder head 23 is also positioned at a predetermined position.

As shown in FIG. 1, the chuck body 10 comprises:
In the parts supply position, the rotation mechanism unit 25 keeps the cylinder in a straight position. After the engine valve 21 erected vertically on the parts feeder 27 is gripped by the gripping claws 11, the cylinder on the table 8 is moved by the horizontal moving device 13. It is moved above the head 23 and stops there. The chuck body 10 that has moved above the table 8 tilts the engine valve 21 held by being rotated by the rotation mechanism unit 25 forward. Then, valve insertion hole 2
The chuck body 10 stopped above the upper part 4 is lowered by the elevating device 14 such that the lower end of the stem part 22 is lowered to a position slightly lower than the open end of the valve insertion hole 24 as shown in FIG. 4A. At this time, the sectional shape of the stem portion 22 at the opening end of the valve insertion hole 24 is as shown in FIG. In this state, the stem portion 22 is gripped by the gripping claws 11 in a state where the upper end portion is inclined so as to fall down to the receiving block 4 side, and as shown in FIG. Since only a part of the lower end is slightly inserted into the valve insertion hole 24,
Even if the stem portion 22 is slightly displaced, the stem portion 22
Is inserted slightly into the valve insertion hole 24, but securely.

Next, the horizontal slider 2 is driven to move the receiving block 4 toward the engine valve 21, and the receiving block 4 comes into contact with the outer periphery of the engine valve 21. Thereafter, the chuck body 10 opens the gripping claws 11 to release the engine valve 21. When the gripping claw 11 releases the engine valve 21, the lower end of the stem portion 22 is supported by the edge of the valve insertion hole 24 and partially inserted into the valve insertion hole 24 as shown in the cross section of FIG. You. Thus, FIG.
As shown in FIG. 2B, the engine valve 21 is supported obliquely so as to lean on the guide part 5 of the receiving block 4 so that the lower end of the stem part 22 is slightly inserted into the valve insertion hole 24. It is mounted on the valve insertion hole 24. When the engine body 21 is released, the chuck body 10 once moves away from the engine valve 21 and retreats.

Since the upper end of the engine valve 21 is held by the gripping claws 11 in a state where the upper end is inclined toward the receiving block 4, the receiving block 4 is
When the gripping claw 11 releases the engine valve 21 even when the receiving block 4 is not in contact with the engine valve 21 when the receiving valve 4 is moved to the side, the engine valve 21 falls down to the receiving block 4 side and reliably receives the engine. Supported by Further, even if the engine valve 21 gripped by the gripping claws 11 is displaced in the width direction of the receiving block 4,
When the grasping claw 11 releases the engine valve 21, the engine valve 21 is positioned at the center of the guide portion 5 by the V-groove-shaped guide portion 5.

After the chuck body 10 is once separated from the engine valve 21, for example, the gripper 11 is closed,
As shown in FIG. 4C, the forward movement is performed again, and the stem portion 22 of the engine valve 21 is received by a part of the gripping claw 11.
Push to the side. As a result, as shown in FIG. 5, the stem 22 pressed by the gripping claws 11 has the outer peripheral surface on the receiving block 4 side abutting against the edge P of the valve insertion hole 24, as shown in FIG.
From the state of (b), as shown in FIG. 6 (c), three points are supported at the edge of the valve insertion hole 24, and the valve insertion hole 2
4 fits deeply. Thereafter, the chuck body 10 separates from the engine valve 21.

Next, as shown in FIG. 4D, when the horizontal slider 2 is driven and the receiving block 4 is further advanced to set the engine valve 21 in a vertical state, the valve insertion hole 24 is made to lean against the receiving block 4. The engine valve 21 positioned above is vertically erected with the lower end of the stem portion 22 inserted into the valve insertion hole 24, and the entire lower end surface of the stem portion 22 is inserted into the valve as shown in FIG. It fits slightly into hole 24.

Thereafter, when the pressing device 6 on the upper surface of the receiving block 4 is driven to cause the press-fit rod 7 to project, as shown in FIG.
The engine valve 21 is brought into contact with the upper surface of the
Insert into 4. At this time, the engine valve 21 is inserted into the valve insertion hole 24 while being guided by the guide portion 5 of the receiving block 4, so that the engine valve 21 is smoothly inserted into the valve insertion hole 24 without tilting.

(Second Embodiment) FIGS. 7A to 7D are schematic views for explaining the operation of a component insertion device 15 according to another embodiment of the present invention. In the first embodiment, the engine valve 21 is set up at an angle above the valve insertion hole 24.
Is pressed by the gripping claws 11 or the component transfer device 9 in this embodiment, but in this embodiment, a dedicated pusher 16 is used as the presser.
Is provided. As shown in FIG. 8, for example, the pusher 16 slidably accommodates a flange 19 provided at the base of a holding block 18 in a case 17 and
The holding block 18 is urged to protrude from the case 17 by using a spring 20 between the case 9 and the case 17 and the elastic force of air. The entire pusher 16 can be moved forward and backward toward the receiving block 4 by an appropriate moving means (not shown).

The procedure for inserting the engine valve 21 into the valve insertion hole 24 of the cylinder head 23 by the component insertion device 15 will be briefly described. When the cylinder head 23 is positioned and placed on the table 8,
The chuck body 10, which vertically holds the engine valve 21 with the gripping claws 11 and carries it above the table 8, is rotated by the rotation mechanism unit 25, and as shown in FIG. The engine valve 21 is moved to the position and the engine valve 21 is tilted forward. At this time, only a part of the lower end of the stem portion 22 is slightly inserted into the valve insertion hole 24.

Next, as shown in FIG. 7B, when the receiving block 4 advances toward the engine valve 21 side by the horizontal slider 2 and the receiving block 4 comes into contact with the outer periphery of the engine valve 21, the holding claw 11 opens to open the engine valve. 21
To release. The released engine valve 21 is supported obliquely so that the lower end of the stem portion 22 is supported by the edge of the valve insertion hole 24 and the upper end portion leans inside the guide portion 5 of the receiving block 4. When the engine body 21 is released, the chuck body 10 once moves away from the engine valve 21 and retreats.

Further, as shown in FIG. 7B, the pusher 16 projects toward the receiving block 4 and
The lower end of the stem portion 22 is pressed against the edge P of the valve insertion hole 24 on the receiving block 4 side by the elastic force of the pusher 16 to elastically contact the lower end portion of the stem portion 22 as shown in FIG. The lower end is fitted deeply into the valve insertion hole 24.

Next, as shown in FIG. 7C, the horizontal slider 2 is driven, and the lower end of the stem 22 is pushed by the pusher 1.
6 (or after the pusher 16 is retracted and separated from the stem portion 22)
Is further advanced, and the engine valve 21 is set up vertically, the engine valve 2 positioned above the valve insertion hole 24 so as to lean against the receiving block 4.
1 is set up vertically with the lower end of the stem 22 inserted into the valve insertion hole 24, and the entire lower end surface of the stem 22 is slightly fitted into the valve insertion hole 24.

Thereafter, the pusher 16 is retracted, and the pushing device 6 is driven to drive the engine valve 21 with the press-fit rod 7.
Into the valve insertion hole 24.

(Third Embodiment) FIG. 10 (a) is a partially broken plan view showing a receiving block 4 and a horizontal slider 2 according to still another embodiment of the present invention, and FIG. 10 (b) is the receiving block. FIG. In this embodiment, two plates are provided between the upper plate 28 and the lower plate 29.
The receiving block 4 is formed by erecting the round shaft 30, and the receiving block 4 is fixed to the tip of the horizontal slider 2.

Even if such a receiving block 4 is used, the engine valve 21 is positioned so as to fit between the round shafts 30 as shown by an imaginary line in FIG. Further, the engine valve 21 is inserted into the valve insertion hole 2.
4 can be smoothly guided.

The round shaft 30 may be rotatably supported between the upper and lower plates 28 and 29 so that the engine valve 21 is smoothly positioned between the round shafts 30.

(Fourth Embodiment) FIG. 11 shows a structure in which a plurality of engine valves 21 can be inserted at a time. The receiving block 4 holds a plurality of engine valves 21 at one time. The cylinder head 23
A plurality of guide portions 5 are provided in correspondence with the plurality of valve insertion holes 24 provided in the, and a pushing device 6 is provided on each guide portion 5.

Thus, the valve insertion holes 2 are successively provided by the plurality of chuck bodies 10 or one chuck body 10 in such a manner that the valve insertion holes 2
4, the engine valves 21 are erected on the guide portion 5, and the receiving block 4 is advanced to erect the plurality of engine valves 21 vertically.
The pushing device 6 is driven to insert the plurality of engine valves 21 into the valve insertion holes 24 simultaneously or sequentially.

[0037]

According to the present invention, even when the clearance between the component and the component insertion hole is small and the chamfer between the component and the component insertion hole is extremely small, the component can be automatically inserted into the component insertion hole without fail. . Moreover, since it can be realized by a simple structure, an expensive component insertion device can be provided without the need for an expensive device such as a correction means using a correction displacement sensor or a three-dimensional robot.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a component insertion device according to an embodiment of the present invention.

FIG. 2A is a cross-sectional view taken along line XX of FIG. 1, showing a receiving block and a horizontal slider. (B) is a top view which shows a chuck main body and the claw for holding.

FIG. 3 is a perspective view showing a receiving block according to the embodiment.

FIG. 4A is a diagram showing a procedure for inserting a component into a component insertion hole by the component insertion device according to the embodiment.

FIG. 4B is a continuation diagram of FIG. 4A.

FIG. 4C is a continuation diagram of FIG. 4B.

FIG. 4D is a continuation diagram of FIG. 4C.

FIG. 4E is a continuation diagram of FIG. 4D.

FIG. 5 is a partially broken sectional view showing a state in which a lower end of a stem is inserted into a valve insertion hole.

FIGS. 6 (a), (b), (c) and (d) are views showing a cross-sectional shape of a stem portion in a horizontal plane passing through an opening end of a valve insertion hole.

FIG. 7A is a diagram showing a component insertion device and its operation according to another embodiment of the present invention.

FIG. 7B is a continuation diagram of FIG. 7A.

FIG. 7C is a continuation diagram of FIG. 7B.

FIG. 7D is a continuation diagram of FIG. 7C.

FIG. 8 is a sectional view showing a structure of a pusher used in the embodiment.

FIG. 9 is a partially broken cross-sectional view showing a state where the lower end of the stem is pressed by a pusher.

FIG. 10A is a partially broken plan view showing a receiving block and a horizontal slider according to still another embodiment of the present invention, and FIG. 10B is a perspective view of the receiving block.

FIG. 11 is a side view showing a component insertion device according to still another embodiment of the present invention.

[Explanation of symbols]

 2 Horizontal slider 4 Receiving block 5 Guide part 6 Pushing device 7 Press-fit rod 10 Chuck body 11 Gripping claw 16 Pusher 21 Engine valve 22 Stem part 23 Cylinder head 24 Valve insertion hole

Claims (3)

[Claims] 1. A component insertion device for inserting a component having an insertion portion having a straight rod shape into a component insertion hole, wherein the component stands on the component insertion hole while being inclined with respect to a component insertion direction. A supporting member for supporting the component from a substantially side direction with respect to the component insertion direction above the component insertion hole, and moving the support member in a substantially side direction with respect to the component insertion direction so that the component is parallel to the component insertion direction. A component insertion device, comprising: a support member moving device for erecting the component; and a pushing device for pushing the component, which is placed on the component insertion hole in parallel with the component insertion direction, into the component insertion hole. 2. The component insertion device according to claim 1, further comprising: a presser for pressing the component, which is erected on the component insertion hole, in contact with an edge of the component insertion hole. A component insertion device, characterized in that: 3. The component insertion device according to claim 1, wherein the support member has a guide portion for inserting the component into a component insertion hole in parallel with a component insertion direction. Parts insertion device.