JPH0783972B2 - Assembling device for thin plate parts - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a device for assembling components made of sheet metal in a narrow space.

[Conventional technology]

A typical example of mounting a thin plate component in a narrow space is a valve used in an intake or exhaust system of an engine.

This valve will be described below as an example. In FIG. 8, the valve seat 26 of the valve body 25 has a thin disk-shaped valve 27.
Is installed. The valve seat 26 is slightly inclined, and the outer shape of the valve 27 is as shown in FIG.
It is formed at an angle α according to the inclination of the valve seat 26.

The assembly is screwed to the shaft 32 as shown in FIG. In the figure, 30 is a screw, 31 is a hole provided in the valve 27, and 33 is a screw hole formed in the shaft 32.

Conventionally, such valve assembly has been performed manually because it requires a highly accurate assembly such as in a narrow space and the valve seat is inclined.

That is, as shown in FIG. 8, the valve 27 is set on the shaft 32 while manually aligning it with the valve seat 26, and the screw 30 is tightened by the driver 28. Then, the quality of the assembled state was judged by illuminating the bulb 27 with the light 29 and judging the degree of light leakage.

Further, all of these manual works are carried out in a groping state, depending on the feeling of the worker.

Further, although the technical fields are different, a device for holding an article from both sides in order to reverse the article (Japanese Patent Laid-Open No. 59-97880) and a device for holding and packing a article (Japanese Patent Laid-Open No. 57-37503). ).

[Problems to be solved by the invention]

In the above-mentioned conventional assembly, since the valve seat and the valve are made with precise dimensional tolerances, in particular, in terms of airtightness and flow rate controllability, the valve is tilted with respect to the valve seat as much as possible. When set in the state, clinging occurs and it is difficult to set smoothly. Depending on the valve, if the valve seat and valve are made in a slightly elliptical shape instead of a perfect circle, or if the valve has an inclination as shown in Fig. 6, there are many special features and the set is difficult to set. There is a problem that it requires a considerable amount of skill because it is difficult and it is a groping work.

As a result, it was installed for a long time (5-10 minutes / 1
However, there is a problem that productivity is extremely low particularly in mass-produced products.

Also, since it depends on the skill of the workers, it is not possible to produce a product with a certain performance due to variations in assembly,
There was a problem in terms of quality assurance.

The ones disclosed in JP-A-59-97880 and JP-A-57-37503 do not have a positioning function but a gripping function for articles, and are not suitable for assembling valves and the like. Application is difficult.

As described above, since the assembly has been performed manually in the past, for example, in an automatic assembly line of an automobile, even if other assembly processes are automated, the overall time flow of the automatic assembly line is It is controlled by the manual work part, and productivity will be reduced.

For these reasons, it is the actual situation that it is currently desired to automate the assembly.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an apparatus for assembling a thin plate component in a narrow space.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides an independently movable insertion arm and a guide arm opposite to each other, and a chuck for holding a component is provided at the tip of the insertion arm, and A guide member is provided at the tip. And the positional relationship between this guide member and the chuck is
The component held by the chuck when positioned by the guide member is positioned at a predetermined position.

[Work]

With this configuration, the chuck holds the component and moves it to the work. Then, first, the guide arm is independently moved and held while being positioned by the guide member, and the insertion arm is independently moved to set the component at a predetermined position.

〔Example〕

One embodiment of the present invention will be described in detail below. In FIG. 1, 1 is an insertion arm and 3 is a guide arm. The insertion arm 1 and the guide arm 3 are provided so as to face each other, and can be independently moved by cylinders 5 and 6. 8 is a mounting bracket, 9 is a cylinder 5 or 6
It is a support member of. A chuck 2 for holding a component is provided at the tip of the insertion arm 1. As shown in FIG. 2, FIG. 3, and FIG. 4, the chuck 2 is provided with an air passage 19 and is connected to an air pipe mounting seat 21 provided on the insertion arm 1 (shown in the drawing). (Omitted) allows the component to be attracted to the attraction surface 33.
The suction surface 33 in this embodiment is made to match the inclination of the valve seat 26. The chuck 2 can be replaced with one having a shape made according to the work. 20 is a guide hole of the driver 28 in this embodiment.
Reference numeral 23 is a positioning claw for the component, and 24 is a suction hole opened to make the suction more effective.

On the other hand, in FIG. 1, the guide 4 is provided with a through hole 17,
The rod 18 is inserted through this through hole 17 to push up the component 27,
Parts can be sucked onto the suction surface 33 of the chuck 2 in a correct posture. Further, in the case of this embodiment, the U groove 16 is provided so as to match the valve shaft 32. Also, mating surface
In the case of the present embodiment, 34 is inclined in accordance with the inclination of the valve seat 26. The guide 4 can be replaced according to the shape of the work.

The positional relationship between the chuck 2 and the guide 4 is such that when the guide 4 is positioned on the workpiece by the guide 4, the chuck 2
The parts held by are placed in place. In the case of the present embodiment, by fitting the U groove 16 provided in the guide 4 into the shaft 32 of the valve, the valve 27 held by the chuck 2 is positioned at a predetermined inclination and at a predetermined position. It has become. Reference numeral 10 denotes a holding member that holds the insertion arm 1, the guide arm 3 and the cylinders 5 and 6, and a holding device 10 is equipped with a flowing device 11. With this flowing device 11, the insertion arm 1
The guide arm 3 is allowed to move to some extent, and serves as a buffer when the guide 4 is positioned on the work. 12 is a base plate, this base plate
By moving 12 along the slide bar 7, the whole including the insertion arm 1 and the guide arm 3 moves.
Reference numeral 13 is a cylinder for moving the base plate 12.

The operation of the present embodiment configured as above will be described below. In FIG. 1, the insertion arm 1 and the guide arm 3 are moved to be separated from each other by the cylinders 5 and 6, and the valve 27 is supplied by the component supply device 35 separately provided therebetween.
Then, the rod 18 is pushed up to adsorb the valve 27 on the adsorption surface 33.

Next, the cylinder 13 is operated to insert the insertion arm 1 and the guide arm 3 into the valve 25. Next, as shown in FIG. 5A, the guide arm 3 is independently moved by the cylinder 6 to fit the U groove 16 into the shaft 32. This allows
The valve 27 attracted to the chuck 1 is also accurately positioned with respect to the valve seat 27. After positioning in this manner, the insertion arm 1 is independently moved by the cylinder 5 to set the valve 27 on the valve seat 26 and at the same time set on the shaft 32 as shown in FIG. 5 (b). Then, the screw 30 is fitted into the driver guide hole 20 (see FIG. 2) and fastened with the driver 28.

When mounting the valve 27 on the valve seat 26 and setting it,
As shown in FIG. 5 (b), the guide arm 3 is slightly moved to make a small gap between the guide arm 3 and the valve 27 held by the chuck 1, and then the suction of the chuck 1 is released. The valve 27 can be set while conforming to the valve seat 26, which enables more accurate mounting. After that, the driver 28 fastens.

Thus, the valve 27 is clamped between the chuck 1 and the guide 4, or the suction is released by providing a slight gap between the sucked valve 27 and the guide 3. Whether to fasten the valve 27 and the valve seat 26 while conforming to each other can be freely selected according to the state, posture or shape of the work. This selection is possible because the insertion arm 1 and the guide arm 3 can move independently.

The above description has been made by taking a valve as an example, but it is applied when a thin plate component is mounted in a narrow space.

〔The invention's effect〕

As described above in detail, according to the thin plate component assembling apparatus of the present invention, the independently movable insertion arm and the guide arm are provided to face each other, and the chuck is provided at the tip of the insertion arm and the guide arm By providing a guide at the tip and positioning with this guide, the component held on the chuck was accurately positioned, so that it becomes possible to mechanically perform the device of the thin plate component in a narrow place. Automation is possible.

As a result, the productivity is greatly improved, the product is free from variations, and the state of the product is guaranteed.

[Brief description of drawings]

1 to 5 show one embodiment of the present invention, in which FIG. 1 is a side view showing a whole of the mounting device by partially longitudinal sectioning, and FIG. 2 is a plan view of an insertion arm. 3 is a side view of FIG. 2, FIG. 4 is a view showing a suction surface of a chuck, FIG. 5 is a view showing an assembling order, (a) is a state of being positioned by a guide, (b) Is the state where the chuck is lowered, (c)
[Fig. 3] is a diagram showing a state in which the guide is slightly lowered. FIG. 6 is an exploded perspective view showing the mounting of the valve in an exploded manner, and FIG. 7 is a side view of the valve. FIG. 8 is a vertical cross-sectional view showing a conventional manual valve assembly. 1 ... Insert arm, 2 ... Chuck, 3 ... Guide arm, 4 ... Guide, 5, 6 ... Cylinder.

Claims (1)

[Claims] 1. An insertion arm and a guide arm, which are independently movable in directions of approaching and separating from each other, are provided so as to face each other, and a chuck for holding a component is provided at a tip of the insertion arm and a tip of the guide arm is provided. Is provided with a guide, and when the guide and the chuck are positioned by the guide, the components held by the chuck are in a positional relationship of being positioned at a predetermined position.