JPS58120436A - Elastic-ring inserting apparatus - Google Patents

Abstract

PURPOSE:To permit insertion of a ring into an insertion part by suspending a holder for spreading the diameter of the ring from the above and installing a ring holding part on the lower part of the holder and feeding the ring from the lower part of the holding part and spreading the diameter by the holder. CONSTITUTION:Elastic rings 2 are supplied one by one to the space just under a holder 4 from a feeder 3, and then the holder 4 is lowered by the operation of a cylinder 11, and a holdering part 41 is inserted into the inside diameter of the ring 2. A flange 52 is raised, and the diameter of the holding part 41 is spread by a tapered inside diameter part 51 to hold the ring. Then, a work 1 is raised relatively to the holder 4, and the ring 2 held in the holding part 41 is inserted into the annular groove part on the work. Thus, the ring can be inserted into the work automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a device for inserting a complete ring into an annular groove of a workpiece.

As a conventional device for inserting the uncut, completely elastic ring of the O II song into the annular groove of the workpiece, there is a device disclosed in Japanese Patent Application Laid-Open No. 2003-31711. However, as shown in the same specification, as the elastic ring 2/σ) expands in diameter, the guide l is replaced with a guide supporting piston ring 9 to expand the diameter, and the mechanism is It was complicated (σ).

The present invention has been developed in view of the above circumstances, and can be used not only for rings that are cut with a simple mechanism like a piston ring, but also for annular rings that form a completely closed loop like an O-ring. The object of the present invention is to provide a device that allows even a ring (hereinafter simply referred to as a "ring") to be easily inserted into an annular groove of a workpiece.

The present invention will be described below based on embodiments shown in the drawings.

The present invention includes a pedestal l2 on which a workpiece l is placed, a ring 2 which is hung and supported so as to be located above the workpiece, and which is supplied from a ring supplying device 3 and holds the ring 2 with its inner diameter expanded. A holding cylinder q having a holding part 4'/ at its lower end, and a diameter expanding means for expanding the diameter of the ring 2 in the holding part 4'/! and a fitting means 6 for feeding out the diameter-enlarged ring ring from the holding portion 4f/ and fitting it into the annular groove/l of the work l.

Further, a magazine 3/ for storing the ring 2 is provided on the base 3 near the ring insertion device.

A slicer 32 for separating and supplying the rings 2 stored in the magazine 3/ is slidably provided at the bottom of the magazine.

As shown in FIG. 2, the slicer 3 is provided with an arcuate step equal to the thickness t of the ring, and the diameter of the arc is matched to the outer diameter of the ring.

Furthermore, leaf springs 33 are fixed to both sides of the slicer 32 to prevent the ring 2 from shifting laterally.

The pedestal 2 is located below the device, on which the work l is placed and moves up and down. Then, the workpiece is automatically carried in one by one to fit the elastic ring 2.

The holding cylinder t is arranged above the workpiece l at a position concentric with the axis of the ring introduction part /3 of the workpiece / placed on the pedestal /2. This holding cylinder body is suspended and supported by a rod of a hydraulic cylinder 7l fixed to the frame body 7, and moves up and down as the cylinder 7l is driven. Further, the lower part of the holding cylinder q forms a holding part G/ which receives the ring λ separated and supplied by the slicer 32 from below and elastically holds the ring λ with its inner diameter expanded.

Further, when holding the Ringco with its diameter expanded by the holding cylinder 1, the leaf spring 33 of the slicer 32 is expanded. As shown in the example diagram, there is a slit in the axial direction at the bottom of the holding cylinder.
112 is provided to enable the diameter of the holding portion to be expanded by diameter expanding means S, which will be described later. In the embodiment, the holding cylinder l has a circular cross section, which is the most common, but other shapes adapted to the shape of the ring 2, and the slits may be extremely wide, or rather, a plurality of rods may be arranged at intervals. It is also possible to have a structure.

The diameter expanding means 5 is configured to expand the diameter of the holding part l/ of the holding cylinder l, but in the embodiment, a tapered part S/ is provided on the inner diameter of the holding cylinder l, and an expanding part S/ having a taper is provided on the inner diameter of the holding cylinder l. When the seven flange portions S2 of the diameter means come into contact with each other and move upward, the diameter expands. The flange portion S2 is connected to the cylinder 7.
It is connected to 2. The diameter expanding means 5 is not limited to the above-mentioned seven flanges, but may have other configurations such as providing a plurality of rods extending radially inside the holding cylinder q.

Next, when the diameter-expanded ring is brought to a position adjacent to the annular groove // of the work piece / by the holding part 'l/, the fitting means 6 pushes out the ring from above to -F annular groove //.
It is configured so that it can be inserted into /.

In the embodiment, the ring 2 slides on the outer peripheral surface of the holding cylinder.
It is composed of a cylindrical body t/ that pushes down the cylindrical body 6 from above.
/ is a lever μ that is linked to the rise of the workpiece / when it is inserted.
, the receiver is connected to a rod Otsu 3 attached to the stand.

Further, the fitting means t is not limited to the above-mentioned cylinder, but may be a push plate having a certain width. A hydraulic cylinder or the like may be used instead of the lever 62 mentioned above.

The operation of the present invention configured as described above will be explained based on the ring suction stroke, that is, the positional relationship of each of the above parts.

The insertion of ring 2 is done in the order of h), 1st hole), (c), and ←) in Figure S.

First, in (a), the ring λ is connected to the ring supply devices 3 to 7.
Supplied individually. As shown in Fig. 1, the ring feeding device has a large number of rings loaded in a cylinder 3/, and one ring λ is fed out laterally by the movement of the slicer 32 shown in Fig. It is positioned directly below the da.

When the ring 2 is supplied, the holding body 1 is lowered by the operation of the cylinder 77. At this time, 7 lunges! 2 is located below, and the holding part 'l/ of the holding body da has a reduced diameter due to its elasticity, so that it can be inserted into the inner diameter of the holding part l/beam. At this time, the fitting means 6 is in the upper position, so there is no problem in supplying the reel.

Next, the diameter of the ring 2 is expanded as shown in (b). That is, the flange 52 is pulled up by the cylinder 72 for a second. Then, the 7 langes 32 and the tapered inner diameter portion 3/-l of the holding cylinder l
rζ is engaged, and the holding portion 4t/ is expanded in diameter while holding the ring 2 as the seventh flange is raised.

Then, as shown in (c), the diameter-expanded ring is brought to a position 'adjacent to the annular groove // via the ring introduction part /3 of the workpiece /. This operation may also be performed by lowering the holding cylinder bow, but this is a relative matter;
In this embodiment, the work l is raised without lowering the holding cylinder. The insertion means is operated in conjunction with the upward movement of the pedestal/two-soil workpiece/. That is, as shown in FIG.
The rod 63 attached to the rod 63 rises, and the lever Q that connects the tip of the rod t3 to the cylindrical body t/ of the fitting means operates on the principle of leverage to lower the cylindrical body 61, and the result is shown in ). In this way, the ring 2 is pushed out from the holding part G/ and is fitted into the annular groove // of the workpiece located immediately below.

As described above, the present invention suspends and supports a holder for expanding the diameter of a ring from above, provides a ring holder at the bottom of the holder, supplies the ring from below the holder, and expands the ring. Since it is configured to fit the ring with a diameter, there is no problem when inserting the ring, and even a completely closed ring such as an 0 ring can be inserted automatically and easily with a simple structure. It is possible to insert the hole into the workpiece.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the apparatus according to the present invention, FIG. 1 is a perspective view showing a part of the slicer of the ring feeding device, and FIG.
Figure i is a front view showing the insertion means part, Figure 4 is A- of Figure 1.
Above all, FIG. S is a schematic diagram showing the steps of operation of this apparatus. /... Workpiece, ll... Annular groove of workpiece, /2...
cradle, 13... ring introduction part, 2... ring, 3
...Ring supply device, da...holding cylinder, 4'/...
・Holding part! ...diameter expanding means, S/...tapered part, 32
... Piston, t... Fitting means, 61... Cylindrical body. 5th (c) (d)

Claims (4)

[Claims] (1) An elastic ring insertion device that fits an elastic ring 2 into an annular groove /l of a workpiece l, and is characterized by having the following conditions (A+, (Bl and (C)). fA) Workpiece l The ring supply device 3 is suspended and supported so as to be positioned above the pedestal /2 to be placed and the workpiece /.
A holding cylinder l having a holding part l/ at the lower end for holding the ring 2 supplied from the ring by expanding its diameter on the inner diameter surface thereof, and a diameter expanding means for expanding the diameter of the ring 2 in the holding part f/! and a fitting means≦ for feeding the enlarged ring 2 from the holding portion ≦ and fitting it into the annular groove ≦ of the workpiece ≦. (Bl The above-mentioned holding cylinder l is placed above the workpiece/
The ring 2 is arranged concentrically with the axis of the ring introduction part 13, and the holding cylinder body is arranged so that the ring 2 is connected to the holding part 4! When the ring is supplied to /, the ring is supplied from below the holding part II/, and when the ring 2 is inserted into the annular groove // of the work l, the holding part l/ is adjacent to the annular groove //. Annular groove up to the position /
Expand the diameter of the holding cylinder until it can be lowered to a position adjacent to / and has a diameter sufficient for fitting. (2) The elastic ring insertion device according to claim (1), wherein the diameter of the holding portion IIl can be expanded by providing a slit 2 in the axial direction at the lower part of the holding cylinder. (3) The diameter expanding means S has a tapered portion 5 on the inner diameter of the holding cylinder.
Claim (1) or (2) is characterized in that: / is provided, and a sliding seven rung portion (5) is combined therewith.
) Elastic ring insertion device 0 described in item 0 (4) The fitting means 6 is a cylinder t/ that slides on the outer periphery of the holding cylinder t and pushes down the ring λ from above to fit it into the annular groove /l of the work l. The elastic ring insertion device according to scope (1). Lever Otsu 2 swingably supported above and lever 62
A rod 63 is engaged with the other end, is always pressed downward by an elastic body, and is slidably inserted and supported by the base, and when the pedestal 12 is raised, the rod 63
The elastic ring insertion device is characterized in that the ring λ supported by the holding cylinder l is pushed down and fitted into the annular groove of the workpiece by the linked action of the rod 63 and the lever end.