JP2004066434A - Ring assembling method and assembling device - Google Patents

Abstract

When a ring having an outer diameter very similar to the inner diameter of the ring is inserted into a predetermined ring and incorporated, even if each ring is formed thin, the rings can be easily and reliably connected to each other. It is an object to provide a method for assembling rings that can be stacked.
A method of assembling a second ring (2) having an outer diameter approximating the inner diameter of the first ring (1) inside the first ring (1), the method comprising the steps of: Deforming the second ring 2 from one direction outward, and reducing the outer shape of the second ring 2 by deforming the second ring 2 inward from a direction substantially orthogonal to the one direction. And inserting the reduced second ring 2 into the first ring 1, releasing the deformation of the first ring 1 and the second ring 2, and incorporating the second ring 2 into the first ring 1. It is characterized by including.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ring installation method and an installation apparatus for inserting another ring into a predetermined ring.
[0002]
[Prior art]
2. Description of the Related Art In a CVT (variable continuously variable transmission) used for an automobile or the like, rotation of an output shaft is performed by extending an endless belt between pulleys on an input shaft side and an output shaft side and changing the inner diameter of a belt groove provided on each pulley. The number has been adjusted. In addition, the endless belt is a belt in which a plurality of belt-like rings are stacked and closely attached.
[0003]
Here, each ring of the endless belt is made of steel, and the ring may be nitrided in order to increase its strength. At this time, if the rings were put into the furnace one by one and nitrified, the work efficiency was not good, so a plurality of rings were stacked and put into the furnace. For example, in an endless belt in which 12 layers of rings are stacked, three 4-layer stacked rings combined at intervals of two layers are created. Here, each ring in the CVT is formed very thin, and the interval between adjacent rings is 0.5 μm or less. That is, since a ring having an outer diameter very similar to the inner diameter of the ring is inserted into a predetermined ring, the assembling work is very difficult.
[0004]
Conventionally, as a device for incorporating a rubber ring having the same outer diameter as the inner diameter of the opening in the opening of the member, the opening of the member and the ring are arranged vertically, and the ring is compressed from one direction. There is a ring assembling apparatus in which the ring is deformed inward, the entire ring is reduced by the tension of the ring generated by the deformation, and then the ring is inserted into an opening and incorporated therein (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP-A-2000-296423 (pages 1-3, FIG. 1-6)
[0006]
[Problems to be solved by the invention]
However, the conventional ring mounting device has the following problems.
It is difficult to maintain the shape of a thinly formed ring, and a ring having an outer diameter that is very similar to the inner diameter of this ring is formed in a predetermined thinly formed ring using a conventional ring assembling apparatus. In the case of incorporating the ring, the rings interfere with each other due to a slight deformation of the predetermined ring, so that there is a problem that the work of assembling the ring becomes complicated.
[0007]
The present invention has been made in order to solve the above-described problem.When a ring having an outer diameter extremely similar to the inner diameter of the ring is inserted into a predetermined ring and incorporated, each ring is formed to be thin. It is an object of the present invention to provide a method and apparatus for assembling a ring that can easily and surely stack the rings even when the ring is provided.
[0008]
[Means for Solving the Problems]
The present invention is configured to solve the above-described problem, and the invention according to claim 1 is configured such that a second ring having an outer diameter that is close to the inner diameter of the first ring is inserted into the first ring. A ring deforming step of deforming the first ring and the second ring outward from one direction and an inner ring from a direction substantially orthogonal to the one direction. A second ring reduction step of reducing the outer shape of the second ring by deforming the second ring, and releasing the deformation of the first ring and the second ring after inserting the reduced second ring into the first ring. And incorporating a second ring into the first ring.
[0009]
According to a second aspect of the present invention, there is provided a ring assembling device for interpolating and incorporating a second ring having an outer diameter close to the inner diameter of the first ring into the first ring. A set of first deformable members that penetrate the ring and deform the first ring outward from one direction; and a set of first deformable members that penetrate the second ring and deform the second ring outward from one direction. A second deformable member, wherein an outline supporting the second ring is formed smaller than an outline of the first deformable member supporting the first ring, and is deformed outward from one direction. A third deformable member that deforms the second ring inward from a direction substantially perpendicular to the one direction, and a state in which the first deformable member deforms the first ring outward from one direction; And the third deformable member is While maintaining the state in which the ring is deformed inward from a direction substantially perpendicular to one direction, the first ring and / or the second ring are moved, and the second ring is inserted into the first ring. And a transport mechanism.
[0010]
Here, the material of the first ring and the second ring is not limited to a steel material or a resin material. Further, the shapes of the first ring and the second ring are not limited, and various rings such as a circle and an ellipse can be applied. However, in the present invention, each ring is formed thin, and This is effective for rings in which the distance between the rings becomes extremely small when the second rings are stacked.
[0011]
According to the first and second aspects of the present invention, the first ring and the second ring are deformed outward from one direction to maintain the shapes of the first ring and the second ring. The shape of each formed ring can be stabilized. Further, since the outer shape of the second ring is reduced, the interval between the first ring and the second ring can be reliably ensured. Thereby, even when each ring is formed thinly and the inner diameter of the first ring and the outer diameter of the second ring are extremely close, the second ring is inserted into the first ring without causing the rings to interfere with each other. It can be easily and reliably interpolated and incorporated.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0013]
Although the method and apparatus for assembling a ring according to the embodiment of the present invention can be applied to rings of various materials and shapes, in this embodiment, a steel belt-like ring used for an endless belt of a CVT is used. An example in which a stacked ring composed of a plurality of rings is formed when nitriding is used will be described.
[0014]
FIGS. 1A and 1B are views showing a first ring deformation stage according to an embodiment of the present invention. FIG. 1A is a plan view showing a state in which a first ring is installed on a first jig, and FIG. FIG. 4C is a plan view showing a state where the first ring is deformed, and FIG. 4C is a side sectional view showing a state where the first ring is deformed. 2A and 2B are views showing a second ring deformation stage according to the embodiment of the present invention, wherein FIG. 2A is a plan view showing a state where a second ring is installed on a second jig, and FIG. FIG. 7C is a side sectional view showing a state in which the second jig has been moved above the support table. FIG. 3A and 3B are views showing a second ring reduction step and a ring assembling step according to the embodiment of the present invention. FIG. 3A is a plan view showing a state where the outer shape of the second ring is reduced, and FIG. FIG. 3C is a plan view showing a state where the second ring is inserted into the first ring, and FIG. 3C is a side cross-sectional view showing a state where a part of the second ring is inserted into the first ring. 4A and 4B are views showing a stage of assembling the ring according to the embodiment of the present invention. FIG. 4A is a side sectional view showing a state where the first slide member descends, and FIG. FIG. 7C is a side cross-sectional view showing a state of approach, FIG. 7C is a side cross-sectional view showing a state where a second slide member is raised, and FIG.
Note that, in the present embodiment, the left-right direction of each drawing is referred to as “left-right direction”. Further, this left-right direction corresponds to one direction described in the claims.
[0015]
First, a ring used in a method and a device for assembling a ring according to an embodiment of the present invention will be described.
In this embodiment, as shown in FIG. 4D, a first ring 1 and a second ring 2 which are circular belt-shaped rings are used. The second ring 2 has an outer diameter that is very close to the inner diameter of the first ring 1, and the laminated ring 3 is created by being inserted into and incorporated into the first ring 1. Since the inner diameter of the first ring 1 and the outer diameter of the second ring 2 are very similar, it is difficult to stack the first ring 1 and the second ring 2 in a circular state.
[0016]
Next, the configuration of the ring installation device according to the embodiment of the present invention will be described.
As shown in FIG. 2C, the installation device 10 includes a first jig 20 installed on the support 11 and a second jig 30 installed directly above the first jig 20. The jig 20 and the second jig 30 are installed such that their centers are concentric.
[0017]
As shown in FIG. 1, the first jig 20 is a member that holds the first ring 1 in a state where the first ring 1 is deformed outward in both left and right directions, and a pair of first slides installed on the upper surface of the support base 11. It is composed of members (first deformation members) 21 and 21. The “state deformed outward in both the left and right directions” refers to a state in which the first ring 1 is expanded into a flat state, that is, deformed into an oval shape.
[0018]
The support base 11 is a base having an opening 12 at the center.
The first slide member 21 is a member having a semicircular shape in a plan view, and a pair of first slide members 21 and 21 are arranged side by side on the upper surface of the support base 11 with the circumferential portion facing outward in the left-right direction. I have. The first slide members 21 and 21 are installed on the upper surface of the support base 11 by an extendable cylinder 23 installed in the opening 12, and the entire first slide members 21 and 21 are located above the opening 12. The first slide members 21 and 21 are housed in the opening 12 by descending at the position where they are arranged.
The first slide members 21 and 21 move from the center of the first jig 20 on the upper surface of the support base 11 so as to approach and separate from each other in both left and right directions. When the first slide members 21 and 21 are close to each other, the entire first slide members 21 and 21 are disposed above the opening 12 of the support base 11 and the first slide members 21 and 21 are separated from each other. In this case, a part of the first slide member 21 is disposed outside the opening 12.
The first ring 1 can be installed around each of the first slide members 21, 21, and the separated first slide members 21, 21 abut on the inner surface of the first ring 1 and spread out. The first ring 1 is supported by the outline 22 of the circumferential portion of the first slide member 21, and the outer shape of the first ring 1 is deformed into an oval shape.
[0019]
As shown in FIGS. 2 and 3A, the second jig 30 is a member that reduces the outer shape of the second ring 2 after holding the second ring 2 in a state deformed outward in both left and right directions. It is. The second jig 30 includes a pair of second slide members (second deformable members) 31 and 31 installed immediately above the first jig 20 and a pair of third slides installed in a direction substantially orthogonal to the left-right direction. It is composed of members (third deformable members) 32 and 32 and can be moved up and down by a transport mechanism (not shown).
[0020]
The second slide member 31 is a semicircular member in a plan view installed on the lower surface of the transport mechanism in a vertical direction, and the pair of second slide members 31, 31 has a circumferential portion directed outward in the left-right direction. It is arranged in parallel with the transport mechanism. In addition, each of the second slide members 31, 31 is formed such that the outline 33 that contacts when supporting the second ring 2 is smaller than the outline 22 that contacts when the first slide member 21 supports the first ring 1. Have been. Each of the second slide members 31, 31 is moved right above the first jig 20 from the center of the second jig 30 toward and away from each other in the left and right directions. When the second slide members 31 are separated from each other, they are disposed immediately above the separated first slide members 21 and 21.
The second ring 2 can be installed around each of the second slide members 31, 31, and the circumferential portions of the separated second slide members 31, 31 contact the inner surface of the second ring 2. By expanding the second ring 2, the second ring 2 is supported by the outline 33 of the circumference of the second slide member 31, and the outer shape of the second ring 2 is deformed into an oval shape.
Further, the separated second slide members 31, 31 are movable in a direction in which the second slide members 31, 31 approach each other when a predetermined tension or more acts on the held second ring 2.
[0021]
The third slide member 32 is a rod-shaped member having a circular cross section and installed vertically on the lower surface of the transport mechanism. A pair of third slide members 32 and 32 are installed between the second slide members 31 and 31. I have. The third slide members 32, 32 are installed outside the second ring 2 held by the respective second slides 31, 31, and move so as to approach and separate from each other in a direction orthogonal to the left-right direction. When the third slide members 32 approach each other, the third slide members 32 abut against the second ring 2 held by the second slide members 31 and 31 to deform the second ring 2 inward.
Each of the third slide members 32, 32 can be moved in conjunction with each of the second slide members 31, 31 by a transport mechanism.
[0022]
The transport mechanism moves between a position above the support table 11 and a storage location (not shown) of the second ring 2 provided near the support table 11 and is configured to be able to move up and down. When the transport mechanism is at the highest position, the lower ends of the second slide members 31, 31 are arranged at positions higher than the first ring 1 held by the first slide members 21, 21, and the transport mechanism descends. By doing so, it descends to the same height as the upper surface of the support base 11.
[0023]
Next, a method for assembling a ring using the ring assembling apparatus 10 according to the embodiment of the present invention will be described.
[0024]
[First ring deformation stage]
First, as shown in FIG. 1A, the first ring 1 is set around the first slide members 21 and 21 of the first jig 20.
Subsequently, as shown in FIGS. 1B and 1C, the first slide members 21 and 21 are separated from each other and brought into contact with the inner surface of the first ring 1, and the first ring 1 is spread. As a result, the first ring 1 is supported by the outline 22 of the circumferential portion of the first slide member 21, so that the outer shape of the first ring 1 is deformed into an oval shape, and the first slide member 21 The shape is retained.
[0025]
[Second ring deformation stage]
On the other hand, as shown in FIG. 2A, the second jig 30 is moved above the storage location of the second ring 2 and the second jig 30 is lowered, so that the second jig 30 is moved around the second slide members 31, 31. The second ring 2 is installed. At this time, a pair of third slide members 32, 32 is installed outside the second ring 2.
Subsequently, as shown in FIG. 2B, the second slide members 31, 31 are separated from each other and brought into contact with the inner surface of the second ring 2, and the second ring 2 is pushed open. As a result, the second ring 2 is supported by the outline 33 of the circumferential portion of the second slide member 31, so that the outer shape of the second ring 2 is deformed into an oval shape, and the second slide member 31, The shape is retained. Since the outline 33 of the second slide member 31 is formed smaller than the outline 22 of the first slide member 21 that supports the first ring 1, the outline 33 is supported by the second slide member 31 of the second ring 2. The portion is smaller in plan view than the portion of the first ring 1 supported by the first slide member 21.
Then, as shown in FIG. 2C, the second jig 30 is moved above the support base 11 by the transport mechanism while the deformation of the second ring 2 is maintained.
[0026]
[Second ring reduction stage]
Further, as shown in FIG. 3A, the third slide members 32, 32 are brought close to each other and brought into contact with the second ring 2 from a direction substantially orthogonal to the left-right direction. As a result, in the second ring 2, the portion where the third slide members 32, 32 abut is deformed inward into a gentle arc shape. Further, due to the tension of the second ring 2 generated by this deformation, the respective second slide members 31, 31 move in the approaching direction, and the interval between the second rings 2 is reduced. That is, the outer shape of the second ring 2 is reliably reduced.
[0027]
[Ring assembly stage]
Subsequently, as shown in FIG. 3B, the second jig 30 is lowered while keeping the outer shape of the second ring 2 reduced, and a part of the second ring 2 is inserted into the first ring 1. Insert. At this time, since the shape of the first ring 1 is held by the first slide members 21 and 21 and the outer shape of the second ring 2 is reduced, the first ring 1 and the second ring 2 interfere with each other. Without this, the second ring 2 can be easily and easily inserted into the first ring 1.
Further, as shown in FIG. 3 (c), after the lowered second slide members 31, 31 contact the first slide members 21, 21, the distance between the first slide members 21, 21 is reduced, By moving each of the first slide members 21 and 21 above the opening 12, the deformation of the first ring 1 is released.
[0028]
Then, as shown in FIG. 4A, the first slide members 21 and 21 are pushed by the descending second slide members 31 and 31, so that the cylinder 23 contracts, so that the first slide members 21 and 21 are opened. Although the first ring 1 is housed in the portion 12, a part of the first ring 1 is in contact with the second ring 2 in the up-down direction, so that the inserted state is maintained.
On the other hand, the lower ends of the second slide members 31 are lowered to the upper surface of the support base 11 and stopped. Thereby, the second ring 2 is incorporated in the first ring 1.
Further, as shown in FIG. 4B, the second slide members 31, 31 are brought close to each other, and the third slide members 32, 32 are separated from each other, so that the deformation of the second ring 2 is released.
[0029]
Finally, as shown in FIGS. 4C and 4D, the second jig 30 is raised to separate from the second ring 2. Thereby, the laminated ring 3 in which the second ring 2 is incorporated in the first ring 1 is placed on the upper surface of the support base 11.
[0030]
Therefore, in the ring assembling method and the assembling apparatus 10 according to the embodiment of the present invention, each of the rings 1 and 2 is formed thin, and the inner diameter of the first ring 1 and the outer diameter of the second ring 2 are extremely close. Even in this case, the second ring 2 can be easily and reliably inserted into the first ring 1 and incorporated without causing the first ring 1 and the second ring 2 to interfere with each other.
[0031]
As described above, an example of a preferred embodiment of the present invention has been described. However, the present invention is not limited to the above-described embodiment, and a design can be appropriately changed without departing from the gist of the present invention.
For example, at the time of assembling the ring, when raising the second jig 30, a plate for holding the upper ends of the first ring 1 and the second ring 2 is installed, and the vibration caused by the movement of the second jig 30 causes the laminated ring 3 to move. It may be prevented from dropping from the support base 11. Further, the second ring 2 may be deformed inward from one direction by one third slide member 32 without providing the pair of third slide members 32.
Further, the configuration of the first slide member 21 and the second slide member 31 is not limited to a member having a semicircular shape in a plan view, but includes a plurality of rod-shaped members arranged in a direction where the axial direction is orthogonal to the support base 11. The members may be installed at predetermined intervals in an arc shape. At this time, the installation form is desirably arranged such that the locus in a plan view of the point where each bar-shaped member contacts each of the rings 1 and 2 is equal to the outlines 23 and 33.
[0032]
【The invention's effect】
According to the method and apparatus for assembling a ring of the present invention, when a second ring having an outer diameter that is close to the inner diameter of the first ring is inserted into the first ring, the first ring and the second ring are inserted into the first ring. Since the shape of the first and second rings is maintained by deforming the second ring outward from one direction, the shape of each thinly formed ring can be stabilized. Further, since the outer shape of the second ring is reduced, the interval between the first ring and the second ring can be reliably ensured. Thereby, even when each ring is formed thinly and the inner diameter of the first ring and the outer diameter of the second ring are extremely close, the second ring is inserted into the first ring without causing the rings to interfere with each other. It can be easily and reliably interpolated and incorporated.
[Brief description of the drawings]
FIGS. 1A and 1B are views showing a first ring deformation stage according to an embodiment of the present invention, wherein FIG. 1A is a plan view showing a state where a first ring is installed on a first jig, and FIG. FIG. 4C is a plan view showing a state where the first ring is deformed, and FIG. 4C is a side sectional view showing a state where the first ring is deformed.
FIGS. 2A and 2B are views showing a second ring deformation stage according to the embodiment of the present invention, wherein FIG. 2A is a plan view showing a state where a second ring is installed on a second jig, and FIG. FIG. 7C is a side sectional view showing a state in which the second jig has been moved above the support table. FIG.
3A and 3B are diagrams showing a second ring reduction stage and a ring assembling stage according to the embodiment of the present invention, wherein FIG. 3A is a plan view showing a state where the outer shape of the second ring is reduced, and FIG. FIG. 3C is a plan view showing a state where the second ring is inserted into the first ring, and FIG. 3C is a side cross-sectional view showing a state where a part of the second ring is inserted into the first ring.
FIGS. 4A and 4B are views showing a stage of assembling the ring according to the embodiment of the present invention, in which FIG. 4A is a side sectional view showing a state in which a first slide member is lowered, and FIG. FIG. 7C is a side cross-sectional view showing a state of approach, FIG. 7C is a side cross-sectional view showing a state where a second slide member is raised, and FIG.
[Explanation of symbols]
1 First ring 2 Second ring 3 Laminated ring 10 Assembly device 11 Support base 12 Opening 20 First jig 21 First slide member 30 Second jig 31 Second slide member 32 Third slide member

Claims (2)

A method of assembling a ring for interpolating and incorporating a second ring having an outer diameter approximating the inner diameter of the first ring into the first ring,
A ring deformation step of deforming the first ring and the second ring outward from one direction;
A second ring reduction step of reducing the outer shape of the second ring by deforming the second ring inward from a direction substantially perpendicular to the one direction;
After inserting the reduced second ring into the first ring, releasing the deformation of the first ring and the second ring and incorporating the second ring into the first ring; ,
A method of assembling a ring, comprising: A ring assembling device for interpolating and incorporating a second ring having an outer diameter approximating the inner diameter of the first ring into the first ring,
A set of first deformable members that enter into the first ring and deform the first ring outward from one direction;
A second deformable member that penetrates into the second ring and deforms the second ring outward from one direction, wherein an outline supporting the second ring is a second deformable member supporting the first ring; The second deformable member formed smaller than the outline of the first deformable member;
A third deformable member that deforms the second ring deformed outward from the one direction toward the inside from a direction substantially perpendicular to the one direction;
A state in which the first deformable member deforms the first ring outward from the one direction, and a state in which the third deformable member moves the second ring inward from a direction substantially orthogonal to the one direction; A transport mechanism that moves the first ring and / or the second ring while maintaining the state of being deformed toward the first ring, and inserts the second ring into the first ring;
An installation device for a ring, comprising:

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