KR101603088B1 - Ring assembly for an electronic clutch, outer ring comprising thereof, and manufacturing method of ring assembly for an electronic clutch and outer ring comprising thereof - Google Patents

Abstract

Provided in the present invention are a ring assembly for an electronic clutch and an outer ring composing the same, and a method for manufacturing a ring assembly for an electronic clutch and an outer ring composing the same. According to the present invention, the outer ring of the ring assembly for an electronic clutch comprises: an outer ring part (210) formed in the shape of disc having a through-opening (211); an outer ring flange (220) which is extended in the direction of meeting the surface of the outer ring part (210) at a right angle; and a number of coupling segments (230) which are disposed by being separated from the outer circumference border of the outer ring part (210) at a preset central angle and form a rivet hole (231), respectively. An embossed part (232) which relatively protrudes compared with the remaining coupling segments (230) is disposed on the surface of the coupling segments (230) which are adjacent to the rivet hole (231), thereby absorbing or buffering noise and vibration generated between the ring assembly and rivet without a washer as the embossed part is included in the ring assembly. Additionally, an embodiment of the present invention is able to simplify the process since the embossed part is manufactured at the same time when manufacturing the ring assembly.

Description

TECHNICAL FIELD [0001] The present invention relates to a ring assembly for an electromagnetic clutch, a ring assembly for an electromagnetic clutch, and a manufacturing method of the outer ring constituting the ring assembly. outer ring comprising thereof}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ring assembly, and more particularly, to a ring assembly for an electromagnetic clutch and outering constituting the ring assembly.

2. Description of the Related Art Generally, a compressor constituting an automotive air conditioner is a device that compresses a refrigerant supplied from an evaporator while being driven by an engine, and transmits the compressed refrigerant to a condenser. .

Hereinafter, the electromagnetic clutch according to the prior art will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view showing an electromagnetic clutch including a conventional disk.

1, a conventional electromagnetic clutch includes a pulley 10 that is connected to a crankshaft (not shown) of the engine by a drive belt (not shown), a pulley 10 that generates a suction magnetic flux A hub 30 connected to the drive shaft A of the compressor and a suction coil 21 driven by the field coil 20 to attract the power of the engine to the hub 30, And an elastic member 50 for applying an elastic force in a direction in which the disk 40 is separated from the friction surface 211 of the pulley 10, .

In such a conventional electromagnetic clutch, when power is applied to the field coil 20, a magnetic attraction is generated by magnetic induction. The disk 40 is moved toward the pulley 10 by the attracting magnetic flux of the field coil 20 so that the friction surface of the disk 40 is attracted to the friction surface 211 of the pulley 10, The power of the engine transmitted to the pulley 10 through the drive belt is transmitted to the drive shaft A of the compressor through the disk 40 and the hub 30. [

When the power applied to the pick coil 2 is cut off, the disc 40 is separated from the friction surface 211 of the pulley 10 by the elastic repulsive force of the elastic member 50. Thus, the transmission of engine power to the drive shaft (A) of the compressor is interrupted.

However, when the clutch is driven, the disc 40 is repeatedly attracted or separated from the friction surface of the pulley 10 depending on whether power is transmitted or not. When the disk 40 is coupled with the rivet R on the bottom surface of the ring assembly 60 fastened to the hub 30, the ring assembly 60 and the rivet Absorbs or buffers noise and vibration between the disk 40 and the ring assembly 60 via the washer W between the disk 40 and the ring R.

However, the following problems arise in the disk of the electromagnetic clutch according to the related art.

Since a separate washer must be interposed between the ring assembly 60 and the rivet R, the number of assembling steps in manufacturing the electromagnetic clutch disk is increased. Further, since the washer must be manufactured separately from the ring assembly 60 manufacturing process, the process is complicated.

Accordingly, it is an object of the present invention to provide a ring assembly for an electromagnetic clutch capable of absorbing or damping noise and vibration generated between a ring assembly and a rivet without a separate washer, A ring assembly for an electromagnetic clutch, and a method of manufacturing an outer ring constituting the ring assembly.

It is another object of the present invention to provide a ring assembly for an electromagnetic clutch for simplifying the manufacturing process of a disk for an electromagnetic clutch, a ring assembly for outcoupling, an electromagnetic clutch, and a method of manufacturing the outer ring constituting the ring assembly. .

One aspect of the present invention provides outering of a ring assembly for an electromagnetic clutch. The outering of the ring assembly for an electromagnetic clutch includes an outering portion on a disk on which a through opening is formed, an outering flange extending in a direction orthogonal to one surface of the outering portion, And an embossing portion formed on one surface of the fastening piece adjacent to the rivet hole to protrude relative to the remainder of the fastening piece.

At this time, the embossed portion may be formed before the rivet hole is formed after the outering flange is formed on the strip-shaped metal member.

Another aspect of the present invention provides a ring assembly for an electromagnetic clutch. Wherein the ring assembly for an electromagnetic clutch includes an inner ring portion on a disk on which a through hole is formed and an inner ring flange extending in a direction orthogonal to one surface of the inner ring portion, And a rubber positioned between the inner ring flange and the outer flange.

The present invention provides a method of manufacturing the outering of the ring assembly for an electromagnetic clutch. The manufacturing method includes the steps of forming a through hole by piercing a part of the metal member, forming a burring in a direction in which a part of the metal member corresponding to the outer circumference of the through hole is orthogonal to the metal member, A step of forming an outward flange; a step of restriking the outward flange; a step of calibrating a tip of the outward flange; a step of embossing a part of the metal member so as to be concentric with the outering flange; Wherein a plurality of embossed portions are formed at equal intervals on a virtual arc, a center portion of the embossed portion is perforated to form a rivet hole, and a portion of the member including the outering flange and the outering rivet hole Is blanked from the rest of the member in a set shape so that the outer ring Emitter and a step separate.

Yet another aspect of the present invention provides a method of manufacturing a ring assembly for an electromagnetic clutch. The manufacturing method includes the steps of fabricating an inner ring including an inner ring portion on a disk on which a through opening is formed and an inner ring flange extending in a direction orthogonal to one surface of the inner ring portion; A method of manufacturing an outer ring, comprising the steps of: fabricating outer ring according to a manufacturing method of the inner ring and outer ring, placing the inner ring and the outer ring inside the mold, applying the adhesive to the inner ring and the outer ring, And the elastic material injected between the inner circumferential surfaces of the turling is solidified to form the rubber.

According to the ring assembly for an electromagnetic clutch according to the present invention, the outer ring, the ring assembly for an electromagnetic clutch, and the method of manufacturing the outer ring constituting the ring assembly, the following effects can be expected.

In the embodiment of the present invention, since the ring assembly includes the embossed portion, the noise and vibration generated between the ring assembly and the rivet can be absorbed or buffered without a washer.

Further, in the embodiment of the present invention, since the embossed portion is manufactured at the time of manufacturing the outering, the process can be simplified.

1 is a cross-sectional view showing an electromagnetic clutch including a conventional disk.
2 is a plan view showing a manufacturing process of outering of a ring assembly for an electromagnetic clutch according to an embodiment of the present invention.
3 is a perspective view of outering of a ring assembly for an electromagnetic clutch manufactured according to an embodiment of the present invention.
4 is a cross-sectional view of a rivet hole of the outering of a ring assembly for an electromagnetic clutch manufactured according to an embodiment of the present invention.
5 is a flowchart showing a manufacturing method of a ring assembly for an electromagnetic clutch according to an embodiment of the present invention.
6 is a perspective view of a ring assembly for an electromagnetic clutch manufactured according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

Manufacturing method of outering of ring assembly for electromagnetic clutch

FIG. 2 is a plan view showing a manufacturing process of outering of a ring assembly for an electromagnetic clutch according to an embodiment of the present invention, and FIG. 3 is a perspective view of outering of a ring assembly for an electromagnetic clutch according to an embodiment of the present invention.

2 (a) and FIG. 3, a method of manufacturing the outering ring 200 of the electromagnetic clutch ring assembly by machining a strip-shaped metal member 10, A part of the through hole 211 is pierced. In order to perform the perforation, the through-hole 211 may be formed by cutting by, for example, punching.

3, a part of the metal member 10 corresponding to the outer periphery of the through-hole 211 is buried in a direction orthogonal to the metal member 10, So that an outering flange 220 is formed.

At this time, the burring process means that the edge of the through-hole 211 is widened by a cylindrical press punch. That is, a part of the outering portion 210 adjacent to the outer periphery of the through hole 211 is burr-processed so that the outering flange 220 extends in a direction orthogonal to the outering portion 210 .

Next, referring to FIG. 2 (c) and FIG. 3, the outering flange 220 is restriked.

The restriking of the outering flange 220 is a process for correcting the deformation of the outering flange 220 and performs quenching and hamming using a striking hammer. Accordingly, the tip of the outering flange 220 can be formed parallel to one surface of the outer ring 200.

Referring to FIG. 2 (d) and FIG. 3, the inner peripheral surface of the outering flange 220 is calibrated.

The outer flange 220 is calibrated to have a predetermined curvature on the inner circumferential surface of the outering flange 220 that has been previously burred.

Referring to FIG. 2 (e) and FIG. 3, a part of the metal member 10 is embossed to form a plurality of embossed portions 232. At this time, the embossed portion 232 is positioned at an equal interval on a virtual arc having a concentricity with the outering flange 220.

The embossing portion 232 may protrude relative to the outering portion 210 on the lower surface of the outering portion 210.

At this time, it is preferable that three or four embossed portions 232 are formed on the member 10 on the imaginary arcs concentric with the outering flange 200 at equal intervals. In this case, the structure is most stable and the process can be simplified.

Since the embossing portion 232 is included in the outer ring 200, noise and vibration generated between the ring assembly and the rivet can be absorbed or buffered without a separate washer. In addition, since the embedding portion is manufactured at the same time as the manufacturing of the outer ring 200, the process can be simplified.

Referring to FIG. 2 (f) and FIG. 3, a central portion of the embossed portion 232 is perforated to form a rivet hole 231.

When punched, the rivet hole 231 can be formed through processing such as punching.

As a rivet (not shown) is inserted into the rivet hole 231, the outer ring 200 and the electromagnetic clutch disc (not shown) are riveted.

2 (g) and 3, a portion of the member 10, including the outering flange 220 and the outering rivet hole 231, As shown in FIG.

4 is a cross-sectional view of the rivet hole of the outering of the ring assembly for an electromagnetic clutch according to an embodiment of the present invention.

Referring to FIG. 4, the outer surface of the outer ring 200 is protruded to the lower surface of the outer ring 210 to form the embossed portion 232. Also, the center of the embossed portion 232 is perforated to form a rivet hole 231.

Ring assembly for electromagnetic clutches

FIG. 5 is a flowchart illustrating a method of manufacturing a ring assembly for an electromagnetic clutch according to an embodiment of the present invention, and FIG. 6 is a perspective view of a ring assembly for an electromagnetic clutch according to an embodiment of the present invention.

5 and 6, a ring assembly for an electromagnetic clutch according to an embodiment of the present invention includes a step of manufacturing an inner ring 100 (S100).

The inner ring 100 includes an inner ring portion 110 on a circular plate on which a through hole 111 is formed and an inner ring flange 120 extending in a direction orthogonal to one surface of the inner ring portion 110 .

In this case, the through-hole 111 may be circular, but is not limited to, a through-hole 111 which is engaged with a hub for an electromagnetic clutch.

Thereafter, the outering 200 is fabricated (S200).

For a detailed description of the outer ring 200, refer to 'Outer ring ring assembly for electromagnetic clutch' described above.

Thereafter, the inner ring 100 and the outer ring 200 are positioned inside the mold (S300).

At this time, it is preferable that the mold is made of a material which is stable to heat. The inner ring 100 and the outer ring 200 are positioned inside the mold so that the outer ring 200 is positioned inside the mold adjacent to the outer peripheral surface of the inner ring 100.

Thereafter, an adhesive is applied to the inner ring 100 and the outer ring 200 (S400).

More specifically, an adhesive is applied to the outer circumferential surface of the inner ring flange 120 of the inner ring 100 and the outer circumferential surface of the outering flange 220 of the outer ring 200. As a result, the bonding force between the inner ring 100 and the rubber 300 formed between the outer ring 200 can be improved.

Finally, the elastic material injected between the outer peripheral surface of the inner ring 100 and the inner peripheral surface of the outer ring 200 is solidified to form the rubber 300 (S500).

At this time, the elastic material is injected between the outer circumferential surface of the inner ring 100 and the inner circumferential surface of the outer ring 200 in a fluid state by heating. Thereafter, as the elastic material is cooled at the room temperature or the low temperature, the elastic material is solidified to form the rubber 300. In this case, the bonding force is improved and the structure is more stable than when the already manufactured rubber is fastened between the inner ring 100 and the outer ring 200.

The rubber (300) plays a role of absorbing vibration and noise when the ring assembly for electromagnetic clutch is applied to the electromagnetic clutch.

Further, when the elastic material is injected, the elastic material may be injected so as to extend to the lower surface of the inner ring 100 and the outer ring 200. Thus, the bonding force between the inner ring 100, the rubber 300, and the outer ring 200 is strengthened.

10: member 11: through opening
100: inner ring 110: inner ring portion
120: Inner ring flange 130: Through hole
200: Outer ring 210: Outer ring part
220: Outer ring flange 230:
231: Rivet hole 232: Embossing part
300: Rubber

Claims (5)

An outering portion 210 on a disk on which a through hole 211 is formed;
An outering flange 220 extending in a direction orthogonal to one surface of the outering portion 210; And
A plurality of fastening pieces 230 spaced apart from each other by a predetermined center angle and having rivet holes 231 formed on the outer periphery of the outering portion 210; / RTI >
An embossing portion 232 protruding relative to the rest of the fastening piece 230 is provided on one surface of the fastening piece 230 adjacent to the rivet hole 231,
The embossed portion 232 is formed before the rivet hole 231 is formed after the outering flange 220 is formed on the belt-shaped metal member 10,
The rivet hole 231 is positioned on the embossed portion 232,
Only the embossed portion 232 is in contact with the surface of the disk so that the remaining portion of the embossed portion 232 excluding the embossed portion 232 is separated from the surface of the disk by the protruded length of the embossed portion 232, Turling.
delete An inner ring (100) including an inner ring portion (110) on a disk on which a through hole (111) is formed, and an inner ring flange (120) extending in a direction orthogonal to one surface of the inner ring portion (110);
An outering (200) of claim 1; And
A rubber 300 positioned between the inner ring flange 120 and the outer flange 220; And a ring gear.
A method of manufacturing an outering of an electromagnetic clutch ring assembly according to claim 1, comprising:
A portion of the metal member 10 is pierced to form a through hole 211;
A part of the metal member 10 corresponding to the outer periphery of the through hole 211 is buried in a direction orthogonal to the metal member 10 to form the outer flange 220;
The outering flange 220 being restriked;
The tip of the outering flange 220 is calibrated;
A part of the metal member 10 is embossed so that a plurality of embossed parts 232 are formed at equal intervals on a virtual arc concentric with the outering flange 220;
A center portion of the embossed portion 232 is perforated to form a rivet hole 231; And
A portion of the member 10 including the outering flange 220 and the outering rivet hole 231 is blanked from the remainder of the member 10 in a predetermined shape so that the outering ring 200, Separating from the metal member (10); Wherein the outer ring of the outer ring is formed of a metal.
The inner ring 100 including the disk-shaped inner ring portion 110 on which the through hole 111 is formed and the inner ring flange 120 extending in the direction orthogonal to one surface of the inner ring portion 110 is manufactured step;
4. The method of claim 4, further comprising: fabricating the outer ring (200);
Placing the inner ring (100) and the outer ring (200) inside the mold;
Applying an adhesive to the inner ring (100) and the outer ring (200); And
The elastic material injected between the outer peripheral surface of the inner ring 100 and the inner peripheral surface of the outer ring 200 is solidified to form the rubber 300; And a ring-shaped ring-shaped member.

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