KR101987901B1 - a device for chamfering of piston ring - Google Patents

Abstract

The present invention relates to a chamfering device for a piston ring, comprising a supply part for supplying a piston ring to be chamfered, a rotating part for pivoting the piston ring so that the two ring ends come into contact with each other and make a circle, And a transferring part for transferring the piston ring of the supplying part to the rotating part and for transferring the rotating part and the piston ring which is chamfered in the chamfering part to the collecting part, And a rotary clamping mechanism for moving the piston ring into and out of the rotary shaft, the rotary clamping mechanism being divided into four parts on a plane on the rotary shaft to move inward and outward toward the rotary shaft, And a second transferring part which moves to the rotating part and the collecting part, wherein the first transferring part and the second transferring part are divided into at least two parts rings Wherein the first transfer portion includes a horizontal press plate that presses the ring side of the portion of the piston ring not in contact with the transfer clamping cylinder in a planar manner so that the first transfer portion contacts the piston ring of the supply portion The second conveying portion conveys the piston ring of the rotary clamping body to the collecting portion and the pressing plate pushes the piston ring which is held in the circle in accordance with the inner movement of the rotary clamping body and then the rotary body rotates, The present invention relates to a chamfering device for a piston ring in which a ring and a chamfered piston ring are fed together and the chamfered piston ring is rotated and chamfered in a horizontally aligned state.

Description

[0001] The present invention relates to a device for chamfering of a piston ring,

The present invention relates to a chamfering device for a piston ring, comprising a supply part for supplying a piston ring to be chamfered, a rotation part for pivoting the piston ring so that the two ring ends of the piston ring come into contact with each other, A collecting part for collecting the chamfered piston ring; a transfer part for transferring the piston ring of the supply part to the rotary part and for transferring the rotary part and the chamfered piston ring to the collecting part, The present invention relates to a chamfering device for a piston ring in which a piston ring is chamfered in a circle in which two ring ends abut against each other to chamfer the piston ring evenly.

Generally, the piston ring is fitted to a ring lobe formed on the outer surface of the piston to maintain the airtightness between the inner wall of the cylinder and the outer wall of the piston. The piston ring is an inner ring corresponding to the outer diameter of the piston ring, A ring end gap of a certain length is formed between the ring ends, and the piston ring is chamfered according to the purpose for which the piston ring is used.

As an example of a conventional method and apparatus for manufacturing such a piston ring, Korean Patent Registration No. 0057671 discloses a device for manufacturing a piston ring for a internal combustion engine having a shape to be sliced into a metal strip, as a metal strip, At least two rollers or guides that are guides that guide the metal strip in the process of forming a circular outline and then separating from the rest of the metal strip to form the piston ring, and a control to generate a digital signal corresponding to the desired piston ring shape Wherein the moving roller, which is at least one of the guides, is a different guide, which is another guide, for changing the shape of the strip around the piston ring during the formation of the piston ring described above, Move relative to roller or guide Characterized in that the digital signal controls the movement of the moving roller, which is the at least one movement guide, during the process of manufacturing a piston ring which is capable of establishing a desired shape with metal strips It is posted.

Another example of a method and apparatus for manufacturing a piston ring is disclosed in Korean Patent No. 1640080, wherein a main shaft is provided with a workpiece support chuck such that the workpiece can be chucked and rotated. A reciprocating table provided with a workpiece collecting member for machining through a tool moved to a workpiece fixed to a workpiece support chuck of the main shaft and separately moving the machined workpiece and the machining residue to a discharge position after finishing; A workpiece supply unit for supplying the workpiece while rotating the workpiece; A workpiece transferring unit for transferring the workpiece supplied from the workpiece supply unit to the workpiece support chuck; A workpiece collecting part for collecting the processed workpiece from the workpiece while the workpiece collecting member is moving backward; And a processing residue / completion discharging portion for causing the workpiece collecting member to collect the workpiece chucked in the workpiece supporting chuck while the workpiece collecting member is being moved backward.

1. Registration number / date 1000576710000 (December 24, 1992) 2. Registration number / date 1016400800000 (2016.07.11)

However, in the case of a conventional apparatus for manufacturing a piston ring by taking a circularly bent metal strip in a " piston ring manufacturing apparatus "of Korean Patent Registration No. 0057671 and similarly, a continuously supplied metal strip is cut by a predetermined length, There is a problem in that the bending of the finished piston ring is not uniform and the metal strip is chamfered while moving into the apparatus, so that the flow generated by the movement of the metal strip There is a problem in that it is not uniformly chamfered by the flow caused by friction or friction.

In addition, the "piston ring manufacturing apparatus and manufacturing method" of domestic patent registration No. 1640080 and similarly, a rotating body such as a ring or a piston ring is continuously supplied and the continuously supplied ring is processed in a chucked state, In the conventional piston ring manufacturing apparatus, there is no configuration in which the chucking state before machining is perpendicular to the rotation axis and the adjustment is made so as to be vertical, so that the ring or the workpiece is machined while being slightly chucked to be defective There was a problem.

In a conventional method of chamfering a piston ring having a ring end gap of a predetermined length, the piston ring is rotated and chamfered with a cutting tool. By rotating and chamfering the piston ring with the ring end gap, There is a problem in that the cutting tool of the piston ring can not be smoothly taken at the end of the ring end and the starting point of the ring end, and there may be a slight jam.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, A rotating portion that pivots and rotates the piston ring so that the two ring ends of the piston ring come into contact with each other to form a circle; A face mounting portion for taking a face of the piston ring rotating in the rotating portion; A collector for collecting the chamfered piston ring; And a transferring part for transferring the piston ring of the supplying part to the rotating part and for transferring the rotating part and the piston ring chamfered in the chamfering part to the collecting part. By chamfering the piston ring between the two ring ends into a circle in which the two ring ends abut , So that the piston ring is evenly chamfered.

The conveying portion is divided into a first conveying portion that moves to the supply portion and the rotation portion, and a second conveying portion that moves to the rotation portion and the collecting portion. The first conveying portion and the second conveying portion are divided into at least two portions Wherein the first conveying portion comprises a horizontal press plate which presses against at least two balanced ring sides of the piston ring in planar contact with the conveying clamping body, , And a rotary clamping member which is an elongated ("L") cross-sectional surface contacting with the ring face while the piston ring is seated, and which is divided into at least three portions balanced on a plane over the rotary member to move inward and outward toward the rotary shaft, When the piston ring of the supply part is transported by the transporting clamping unit and transported to the rotary clamping unit, the second transporting unit transports the piston ring on the rotary clamping unit by the transporting clamping unit to the collecting unit, The piston ring of the first conveying portion is pushed by the pushing plate of the piston ring which is held in the circle where the two ring ends come into contact with the inner side of the clamping cylinder and then the rotary ring is rotated so that the chamfered piston ring and chamfered piston ring are fed together, The piston ring is rotated and chamfered with the piston ring horizontally aligned.

As described above, according to the present invention, there is an effect that the piston ring is chamfered evenly after rotating the two ring ends of the piston ring against each other in the rotating portion, rotating and chamfering the chamfered portion.

The piston ring to be chamfered is conveyed by the first conveying portion, and the chamfered piston ring is conveyed to the second conveying portion so that the conveying, chamfering, .

Further, by horizontally aligning the piston ring with the horizontal press plate of the first conveying portion, the piston ring is chamfered evenly.

1 is a front view of a chamfering device of a piston ring according to an example of the present invention.
FIG. 2 is an enlarged side view of FIG. 1A. FIG.
3 is a perspective view of a supply part according to an example of the present invention;
FIG. 4 is an enlarged cross-sectional view of FIG. 1A. FIG.
Fig. 5 is a bottom view of the first transfer part according to the example of the present invention; Fig.
6 is a plan view of a rotating part according to an example of the present invention;

The present invention relates to a chamfering device for a piston ring, comprising a supply part for supplying a piston ring to be chamfered, a rotation part for pivoting the piston ring so that the two ring ends of the piston ring come into contact with each other, A collecting part for collecting the chamfered piston ring; and a transfer part for transferring the piston ring of the supply part to the rotary part and for transferring the rotary part and the chamfered piston ring to the collecting part, The present invention relates to a chamfering device for a piston ring in which a piston ring is chamfered in a circle in which two ring ends abut against each other to chamfer the piston ring evenly.

The chamfering device of the piston ring of the present invention comprises a supply part, a rotating part, a chamfered part, a collecting part, and a conveying part, which will be described in sequence as follows.

First, as shown in Fig. 3, the supply part 100 is a part for supplying the piston ring 20 to be chamfered, and includes a feed plate 101 having a plate structure having an area capable of stacking the piston rings 20, A ring alignment table 102 having a vertical frame structure in contact with the ring face 22 of the piston ring 20 having a vertical frame structure in contact with the two ring ends 21 of the stacked piston rings 20, (103).

The feed tray 101 is moved up and down by the moving means and is moved upward by the ring width of the piston ring 20 every time the piston ring 20 is conveyed by the conveyance section 500, The position of the uppermost piston ring 20 stacked on the piston ring 20 is constant.

And the ring end alignment belt 103 is constituted by a vertical frame of a V ("V") magnetic cross section fitted in the ring end gap of the piston ring 20, ("V") cross-section perpendicular to the plane 22, such that two points are in contact with each other. At this time, one or a plurality of ring alignment bands 102 may be formed.

The upper end of the ring alignment table 102 and the ring end alignment table 103 may be lower than the upper end of the uppermost piston ring 20 stacked on the feed tray 101, 511 so as to hold the piston ring 20 at the uppermost position or to arrange the ring alignment table 102 and the ring end alignment table 103 on a plane so as not to overlap the conveying clamping tool 511 of the conveyance unit 500 So that the piston ring 20 can be gripped by the conveying clamping frame 511 so as to be easily conveyed.

4 and 6, the rotating portion 200 is a portion for pivoting and rotating the piston ring 20 to be chamfered. The rotating portion 200 includes a rotating rotating sheave 201, a piston ring 20, And a rotary clamping tool 202.

Here, the rotary clamping unit 202 is divided into at least three parts in a planarly balanced manner in a disk structure in which the rim is protruded upwardly with an elongated ("L") cross-section in contact with the ring face 22 while the piston ring 20 is seated And the moving means 203 may be coupled between the rotary clamping unit 202 and the rotary sheave 201 so as to move inward or outward toward the rotary shaft.

The portion of the rotary clamping tool 202 protruded so as to be in contact with the ring face 22 is lower than the ring width so that the upper portion of the piston ring 20 seated on the rotary clamping body 202 protrudes upward, The piston ring 20 is disengaged so that it is formed as an arc corresponding to the outer diameter of the circle in which the two ring ends 21 abut on each other.

2, the chamfered portion 300 includes a cutting tool 301 which is to be chamfered and which moves the cutting tool 301 by moving the piston ring 20 rotating in the rotary portion 200, 1, the collecting portion 400 collects the chamfered piston ring 20, and includes a moving body with wheels and a moving body coupled to the moving body 302. The collecting portion 400 collects the chamfered piston ring 20, Ring hooks.

The rotating portion 200 and the chamfered portion 300 constitute cutting chip removing means such as an air blower for removing the cutting chips generated when the piston ring 20 is chamfered.

1, the transfer unit 500 transfers the piston ring 20 of the supply unit 100 to the rotation unit 200 and rotates the piston ring 200, which is chamfered in the chamfer 300, 20 to the collecting part 400 includes a first conveying part 510 which moves to the supplying part 100 and the rotating part 200, a second conveying part which moves to the rotating part 200 and the collecting part 400, (520).

5, the first transfer part 510 and the second transfer part 520 are connected to each other by a transferring clamp (not shown) which clamps at least two parts of the ring face 22 balanced on the plane piston ring 20 Wherein the first transfer portion 510 includes a horizontal pressure plate 512 that presses against at least two portions of the ring side 23 that are not in contact with the transfer clamp 511 in the planar piston ring 20, .

At this time, the press plate 512 is preferably formed so as to press the ring side 23 of the two ring ends 21.

When the two transporting clamps 511 are moved in the left and right directions to clamp the left and right ring faces 22 on the left and right sides of the piston ring 20 in the first and second transporting portions 510 and 520, The push plate 512 is configured to protrude forward and rearward to be moved up and down with a size and shape contacting the front and rear ring side 23 of the piston ring 20 to press the ring side 23.

As shown in Figs. 1 and 3, the chamfering device 1 of the piston ring thus configured is configured such that the piston ring 20 is supported by the ring alignment table 102 and the ring end alignment table 103 on a flat surface The stacked upper piston ring 20 is held by the conveying clamping frame 511 of the first conveying unit 510 and transferred to the rotary unit 200 as shown in FIG. 5, and the piston ring 20 ) Is moved upward by the ring width of the piston ring 20 every time the piston ring 20 is conveyed.

Thereafter, the piston ring 20 transferred to the rotating portion 200 is seated on the rotating clamping body 202. When the rotating clamping body 202 is moved to the inside of the rotating shaft by the moving means 203, The piston ring 20 is pivoted into a circle in which the two ring ends 21 are in contact with each other and the piston ring 20 in which the pressure plate 512 of the first transfer portion 510 is pinched, When the ring side (23) is pressed down, the piston ring (20) is moved horizontally to correct the misaligned flow.

Thereafter, the rotary pack 201 is rotated and rotated to rotate the horizontally aligned piston ring 20, and the cutting tool 301 of the chamfered portion 300 is moved to a chamfered position to be chamfered and chamfered , The cutting tool 301 is disengaged from the chamfered piston ring 20, and the rotary clamping tool 202 moves outward to untie the force that tightened the piston ring 20.

Thereafter, as shown in Fig. 1, the second conveying portion 520 is held so as to catch the piston ring 20 chamfered by the conveying clamping body and hooked to the ring hanger of the collecting portion 400, while the first conveying portion 510 and the second transfer portion 520 simultaneously transfer the piston ring 20.

When a large number of piston rings 20 are collected in the ring hanger of the collecting part 400, the collecting part 400 in which the piston rings 20 are frequently caught is moved to another position, (400).

As described above, the chamfering device 1 of the piston ring of the present invention rotates in a circle in which the two ring ends 21 of the piston ring 20 come into contact with each other in the rotary part 200, And the piston ring 20 is chamfered evenly.

The transferring part 500 is divided into a first transferring part 510 and a second transferring part 520 so that the chamfered piston ring 20 is transferred by the first transferring part 510 to the chamfered piston ring 20 are conveyed to the second conveying portion 520 and conveyed, chamfered, and conveyed continuously.

In addition, the horizontal push plate 512 of the first transfer portion 510 has a feature in that the piston ring 20 is evenly chamfered by pressing the piston ring 20, which is pinched by pressing.

1: a chamfering device of a piston ring 20: a piston ring 21: a ring end
22: ring face 23: ring side 100: supply part
101: feed plate 102: ring alignment stand 103: ring end alignment stand
200: rotating part 201: rotating roll 202:
203: moving means 300: face mounting 301: cutting tool
302: moving means 400: collecting unit 500: conveying unit
510: first transfer part 511: transfer clamping frame 512:
520: second transfer portion

Claims (4)

A feed end portion including a feed end plate moved upward and downward while the piston rings are stacked, a ring end portion for aligning the stacked piston rings, and a ring end end portion for aligning the ring ends in the stacked piston rings,
The piston rings to be transferred to the rotating portion are arranged in the same plane and in the same plane by stacking the piston rings on the supply receiving plate in a planar coincident manner and moving the feed tray up by the ring width of the piston rings each time the stacked upper piston rings are transported And a supply unit for supplying the same height,
A piston ring is pushed by the pushing plate of the conveying portion, and then the piston ring is rotated to rotate and chamfer the piston ring in which the two ring ends come into contact with each other, Wow,
A face mounting portion for chamfering the piston ring rotating in the rotating portion,
A collecting part for collecting the chamfered piston ring,
And a transfer section for transferring the piston ring of the supply section to the rotary section and for transferring the rotary piston section and the piston ring chamfered at the chamfered section to the collecting section including a press plate for horizontally aligning the piston ring By the conveying portion,
So that the machined piston ring is evenly chamfered.
delete delete The method according to claim 1,
The conveying portion is divided into a first conveying portion that moves to the supplying portion and the rotating portion, and a second conveying portion that moves to the rotating portion and the collecting portion,
Wherein the first transferring portion and the second transferring portion comprise a transferring clamp which clamps at least two portions of the ring face balanced on the plane piston ring,
The first conveying portion includes a horizontal presser plate which presses against at least two portions of the ring side that are balanced against the conveying clamping frame in the planar piston ring,
The rotating portion includes a rotating rotating block, a rotating block which is an elongated ("L") end face contacting with the ring face while the piston ring is seated, and is divided into at least three portions balanced on a plane on the rotating block, So,
When the first conveying portion is conveyed to the collecting portion by the conveying clamping mechanism, the second conveying portion conveys the piston ring on the rotating conveying clamping body by the conveying clamping mechanism and transfers the piston ring to the collecting portion. The pushing plate of the first conveying portion presses the piston ring, which is held in a circle in which the ring ends come into contact with each other,
Wherein the piston ring to be chamfered and the chamfered piston ring are fed together and the chamfered piston ring is rotated and chamfered in a horizontally aligned state.

Images