KR100812535B1 - The vibration protect device of a lathe processing rod - Google Patents

The vibration protect device of a lathe processing rod Download PDF

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Publication number
KR100812535B1
KR100812535B1 KR1020070037739A KR20070037739A KR100812535B1 KR 100812535 B1 KR100812535 B1 KR 100812535B1 KR 1020070037739 A KR1020070037739 A KR 1020070037739A KR 20070037739 A KR20070037739 A KR 20070037739A KR 100812535 B1 KR100812535 B1 KR 100812535B1
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KR
South Korea
Prior art keywords
bar
vibration
guide block
timing belt
lever
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KR1020070037739A
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Korean (ko)
Inventor
홍대선
이승영
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창원대학교 산학협력단
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Priority to KR1020070037739A priority Critical patent/KR100812535B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
    • B23B13/08—Arrangements for reducing vibrations in feeding-passages or for damping noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
    • B23B13/12—Accessories, e.g. stops, grippers
    • B23B13/126—Supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2250/00—Compensating adverse effects during turning, boring or drilling
    • B23B2250/16—Damping of vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/12—Accessories for attaching

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

A device for preventing vibration of a long bar mounted on a chuck of an NC(Numerically Controlled) lathe is provided for turning and cutting a long bar without accumulating errors due to a gap resulting from rotational vibration by supporting the center of rotation of the bar with a roller and absorbing the rotational vibration with the roller. A device for preventing vibration of a long bar includes a plate-shape guide block(22) having a circular hole(18) at the center of the guide block to receive a bar to be machined, a pair of rollers(12) which supports the bar vertically with bearings coated with urethane and installed to rotate freely, a pair of rollers(11) which supports the bar horizontally with bearings coated with urethane and installed to rotate freely, L-shape levers(14) where rollers supporting the bar are mounted at an end of each lever and where extension bars(15) are connected to each lever, extension bars mounted to the guide block, connection holes(17) to connect the extensions bars to pulleys(23), and bushings(16) located in the connection holes to minimize friction between the extension bars and the guide block.

Description

선반가공봉재의 진동방지장치{The vibration protect device of a lathe processing rod}Vibration preventing device for lathe machining

도 1은 종래 진동방지장치의 구성도로서 a)는 작동 전 상태도, b)는 작동 후 상태도, c)는 측단면도1 is a configuration diagram of a conventional vibration damping device a) is a state diagram before operation, b) is a state diagram after operation, c) is a side cross-sectional view

도 2는 본 발명 진동방지장치의 분해사시도Figure 2 is an exploded perspective view of the vibration damping device of the present invention

도 3은 본 발명 진동방지장치의 전면시시도Figure 3 is a front perspective view of the vibration damping device of the present invention

도 4는 본 발명 진동방지장치의 후면사시도Figure 4 is a rear perspective view of the vibration damping device of the present invention

도 5는 본 발명 진동방지장치의 측면도Figure 5 is a side view of the vibration damping device of the present invention

도 6은 본 발명 진동방지장치의 후면도Figure 6 is a rear view of the vibration damping device of the present invention

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

11. 좌우지지로울러 12. 상하지지로울러11. Left and right support roller 12. Lower and lower support roller

13. 축 14. 레버13. Shaft 14. Lever

15. 연장부 16. 부싱15. Extension 16. Bushing

17. 연결공 18. 구멍17. Connector 18. Hole

19. 장공 20. 샤프트19. Longevity 20. Shaft

21. 텐션로울러 22. 가이드블록21. Tension Roller 22. Guide Block

23. 풀리 24. 타이밍벨트23. Pulley 24. Timing belt

25. 브라켓 26. 에어실린더25. Bracket 26. Air cylinder

27. 로드 28. 봉재27. Rod 28. Bar

본 발명은 NC선반에서 가공되는 길이가 긴 가공물인 봉재가 회전함에 따라 발생하는 진동을 방지할 수 있게 하는 장치에 관한 것으로, 보다 상세하게는 치아의 임플란트용 소재인 티탄늄 봉을 소형 NC선반에 척킹하고 가공한 후 순차적으로 전진시켜 연속적으로 가공하는 과정에서 미가공된 봉재가 선반의 회전에 따라 회전하면서 심한 진동이 발생하는 것을 방지할 수 있게 한 것에 관한 것이다.The present invention relates to an apparatus for preventing vibration caused by the rotation of a rod, which is a long workpiece processed in an NC lathe, and more particularly, a titanium rod, which is a material for dental implants, to a small NC lathe. In the process of chucking and processing, and then sequentially advance to continuously process the raw material is to be able to prevent the occurrence of severe vibration while rotating in accordance with the rotation of the shelf.

통상적으로 선반에서 길이가 긴 봉재를 가공하기 위하여는 선반의 스핀들 유니트와 심압대 사이에 방진장치를 설치하여 봉재의 회전에 따라 스핀들 유니트와 심압대 사이에서 발생하는 봉재의 진동을 방지할 수 있게 하는 방법이 있었으며, 또 다른 봉재 가공방법인 비교적 가늘고 길이가 긴 봉재를 NC선반에 일정량씩 순차적으로 전진시켜 공급하는 봉재자동공급기를 구비하는 경우에는 봉재의 후단부를 고정하는 심압대가 존재하지 않으므로 봉재의 선단부는 선반의 척에 의하여 고정하고 스핀들 유니트의 후단부나 봉재자동공급기의 선단부에 봉재의 진동을 방지할 수 있게 하는 장치를 구비하고 있다.In general, in order to process a long rod on a lathe, a vibration isolator is installed between the spindle unit and the tailstock of the lathe to prevent vibration of the rod occurring between the spindle unit and the tailstock as the rod rotates. If there is a bar automatic feeder that continuously advances and supplies a relatively thin and long bar, which is a method of processing a bar, to the NC lathe sequentially by a certain amount, there is no tailstock to fix the rear end of the bar. Is equipped with a device that can be fixed by the chuck of the shelf and to prevent the vibration of the bar at the rear end of the spindle unit or the front end of the automatic bar feeder.

종래 봉재자동공급기의 선단 또는 NC선반의 스핀들 후단부에 구비되는 진동방지장치로는 도 1에 도시된 것과 같이 상하·좌우로 서로 대칭되는 위치에 각각 한쌍의 상하지지로울러(1) 및 좌우지지로울러(2)를 레버(3)의 일측에 회전이 자유롭게 지지하고 레버(3)의 타측은 링크(4)를 연결하는 힌지(5)에 고정하여 지지로울러를 구비하는 레버(3)의 일단을 에어실린더(6)에 의하여 전진시킬 때 레버(3)를 고정하고 있는 링크(4)가 서로 연동되면서 레버(3)를 회전중심방향으로 경사시키고 레버(3)에 구비된 지지로울러가 봉재를 회전가능한 상태에서 지지하여 진동을 방지할 수 있게 한 것이 공지되어 있었다.As a vibration preventing device provided in the front end of the conventional automatic bar feeder or the spindle rear end of the NC lathe as shown in FIG. 1, a pair of upper and lower support rollers (1) and left and right support rollers are respectively located at positions symmetrical with each other up, down, left and right. (2) is rotatably supported on one side of the lever (3) and the other side of the lever (3) is fixed to the hinge (5) connecting the link (4) one end of the lever (3) having a support roller to air As the link 4 holding the lever 3 interlocks with each other when the cylinder 6 moves forward, the lever 4 is inclined in the rotational center direction, and a support roller provided on the lever 3 is capable of rotating the rod. It has been known to support in a state to prevent vibration.

그러나 상기와 같은 링크와 레버를 이용하는 진동방지장치는 다수의 링크를 조합하게 됨으로서 제작이 어려워 비용을 증가시키고 링크구조가 가지는 구조적인 단점인 링크의 힌지부가 서로 연동작동시 회전유격이 누적되어 지지로울러를 정확하게 회전중심점에 지지하기 어렵고 링크 자체에서는 진동을 흡수할 수 없다는 문제점이 있었다.However, the vibration damping device using the link and the lever as described above is difficult to manufacture by combining a plurality of links to increase the cost, and the rotating disadvantages accumulate when the hinge portions of the link, which is a structural drawback of the link structure, interlock with each other and support the rollers. It is difficult to accurately support the center of rotation and the link itself has a problem that can not absorb vibration.

본 발명은 상기와 같은 제반문제점을 해결하기 위하여 개발된 것으로 회전유격의 오차가 누적됨이 없이 지지로울러가 정확하게 회전중심점을 지지할 수 있게 하는 구성을 제공하는 것을 목적으로 한다.The present invention was developed to solve the above-mentioned problems, and an object of the present invention is to provide a configuration that enables the support roller to accurately support the center of rotation without accumulating errors in the rotational clearance.

본 발명의 또 다른 목적은 회전하는 봉재에서 발생하는 진동을 지지로울러 구동부에서 흡수할 수 있게 하는 것이다.Still another object of the present invention is to be able to absorb the vibration generated by the rotating rod in the drive unit.

본 발명의 또 다른 목적은 진동방지장치의 구성을 간단하게 하여 제조를 용이하게 하고 비용을 절감할 수 있게 하는 구성을 제공하는 것이다.Still another object of the present invention is to provide a configuration that can simplify the configuration of the vibration damping device to facilitate the manufacture and reduce the cost.

상기한 목적을 위한 본 발명 '선반가공봉재의 진동방지장치'는 상하·좌우로 서로 대칭되는 위치에 각각 한쌍의 상하지지로울러와 좌우지지로울러를 레버의 일측에 회전이 자유롭게 지지하고 레버의 타측은 지지로울러를 고정하는 가이드블록을 관통하여 풀리와 결합한다.The present invention for the above-mentioned 'vibration preventing device of the lathe machining rod' is a pair of upper and lower support and left and right support rollers respectively rotatably supported on one side of the lever in the position symmetrical with each other up, down, left and right, and the other side of the lever It is coupled to the pulley through the guide block for fixing the support roller.

풀리는 타이밍벨트와 결합하여 회전할 수 있도록 기어형상의 치형을 구비하며, 각각의 풀리는 하나의 타이밍벨트에 의하여 구동될 수 있게 구성되고, 타이밍벨트의 일측은 에어실린더의 로드에 구비되는 브라켓에 의하여 고정되어 에어실린더의 작동에 따라 정·역회전이 가능하게 구성되며, 에어실린더가 구비되는 타측의 타이밍벨트에는 장력을 조절할 수 있는 텐션로울러가 구비되며 지지로울러와 텐션로울러는 우레탄수지 또는 경질의 고무로 구성된다.The pulley has a gear-shaped tooth to rotate in conjunction with the timing belt, each pulley is configured to be driven by one timing belt, one side of the timing belt is fixed by a bracket provided on the rod of the air cylinder The forward and reverse rotation is possible according to the operation of the air cylinder, and the other side timing belt provided with the air cylinder is provided with a tension roller for adjusting the tension, and the support roller and the tension roller are made of urethane resin or hard rubber. It is composed.

이하에서 본 발명의 바람직한 실시 예에 대하여 첨부한 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명 진동방지장치의 분해사시도이고, 도 3은 본 발명 진동방지장치의 전면사시도이며, 도 4는 본 발명 진동방지장치의 후면사시도이고, 도 5는 본 발명 진동방지장치의 측면도이며, 도 6은 본 발명 진동방지장치의 후면도이다.Figure 2 is an exploded perspective view of the vibration damping device of the present invention, Figure 3 is a front perspective view of the vibration damping device of the present invention, Figure 4 is a rear perspective view of the vibration damping device of the present invention, Figure 5 is a side view of the vibration damping device of the present invention. 6 is a rear view of the vibration preventing device of the present invention.

도면에 도시한 바와 같이 본 발명은 중심부에 봉재(28)를 수용하는 원형의 구멍(18)을 가진 판상의 가이드블록(22) 전면에, 우레탄수지 등으로 피복되고 축(13)과 자유롭게 회전할 수 있도록 베어링(도면미도시)이 내장된 상하·좌우지지로울러(11, 12)가 각각 쌍으로 구비된다.As shown in the figure, the present invention is coated with a urethane resin or the like on a front surface of a plate-shaped guide block 22 having a circular hole 18 for accommodating a rod 28 at the center thereof, and freely rotating with the shaft 13. The upper, lower, left and right support rollers 11 and 12 in which bearings (not shown in the figures) are built are provided in pairs.

상하·좌우지지로울러(11, 12)는 ㄱ자 형상의 레버(14) 일측단부에 회전이 자유롭게 지지되며, 지지로울러가 구비된 타측의 레버 연장부(15)는 가이드블록(22)에 형성된 연결공(17)을 통하여 가이드블록(22)의 후면으로 돌출되게 삽입되며, 레버(14)의 연장부(15)와 가이드블록 연결공(17) 사이에는 부싱(16)이 개재되어 회동마찰을 감소시킬 수 있게 구성된다.The top, bottom, left and right support rollers 11 and 12 are rotatably supported at one end of the L-shaped lever 14, and the lever extension part 15 of the other side provided with the support roller is connected to the guide block 22. Inserted to protrude to the rear of the guide block 22 through (17), the bushing 16 is interposed between the extension portion 15 of the lever 14 and the guide block connecting hole 17 to reduce the rotational friction. It is configured to be.

가이드블록(22)의 이면으로 돌출되는 연장부(15)에는 각각 풀리가 결합된다.Pulleys are respectively coupled to the extension portions 15 protruding to the rear surface of the guide block 22.

풀리(23)는 타이밍벨트(24)의 구동력을 전달할 수 있게 치형이 형성되어 있으며, 타이밍벨트(24)의 일측, 즉 풀리(23)와 풀리(23)사이의 타이밍벨트(24)에는 에어실린더(26)의 로드(27) 단부에 구비된 브라켓(25)과 타이밍벨트(24)가 결합고정되어 에어실린더(26)의 신축에 따라 타이밍벨트(24)를 정·역으로 구동할 수 있게 구성된다.The pulley 23 is toothed to transmit the driving force of the timing belt 24, an air cylinder on one side of the timing belt 24, that is, the timing belt 24 between the pulley 23 and the pulley 23. The bracket 25 provided at the end of the rod 27 of the rod 26 and the timing belt 24 are fixed to each other so that the timing belt 24 can be driven forward and backward according to the expansion and contraction of the air cylinder 26. do.

또한 가이드블록(22)에 형성된 장공(19)에는 텐션로울러(21)를 회전이 자유롭게 지지하는 샤프트(20)를 삽입하고 고정하며, 샤프트(20)는 장공(19)을 따라 고정되는 위치를 변경함으로서 타이밍벨트(24)의 장력을 조절한다.In addition, the long hole 19 formed in the guide block 22 is inserted and fixed to the shaft 20 for supporting the tension roller 21 freely rotated, the shaft 20 changes the position fixed along the long hole 19 By adjusting the tension of the timing belt 24.

이하에서 본 발명의 작용을 상세하게 설명하기로 한다.Hereinafter will be described in detail the operation of the present invention.

도 6과 같이 수축된 상태의 에어실린더(26)가 신장되면서 로드(27)가 전진하 면 로드(27)와 결합된 브라켓(25)이 전진하면서 브라켓(25)에 고정된 타이밍벨트(24)도 전진하게 된다.As the air cylinder 26 in the contracted state as shown in FIG. 6 extends and the rod 27 advances, the timing belt 24 fixed to the bracket 25 moves forward with the bracket 25 coupled to the rod 27. Will also move forward.

타이밍벨트(24)가 전진하게 되면 풀리(23)도 타이밍벨트(24)의 전진방향으로 회동하면서 풀리(23)와 고정된 연장부(15)와, 연장부(15)와 일체화된 레버(14)를 동일방향으로 회동하게 되고 레버(14)의 단부에 지지된 상하·좌우지지로울러(11, 12)는 가이드블록(22)의 구멍(18) 중심점을 향하여 동시에 회동하면서 구멍(18)에 수용된 봉재(28)를 압박하여 진동의 발생을 억제하게 된다.When the timing belt 24 is moved forward, the pulley 23 also rotates in the forward direction of the timing belt 24, the extension 15 fixed to the pulley 23 and the lever 14 integrated with the extension 15. ) Is rotated in the same direction and the up, down, left and right support rollers 11 and 12 supported at the end of the lever 14 are rotated simultaneously toward the center point of the hole 18 of the guide block 22 and received in the hole 18. Pressing the bar 28 to suppress the generation of vibration.

길이가 긴 봉재(28)의 일측단부는 선반에 척킹되고 진동방지장치에 의하여 가운데가 지지되어 있더라도 지지되지 않는 봉재(28)의 단부는 자중에 의하여 아래로 처지면서 선반의 회전에 의하여 진동이 발생할 수 있으나 본 발명에서는 발생하는 진동을 다소의 신축성을 갖는 타이밍벨트(24)에서 흡수할 수 있으므로 발생되는 진동을 현저하게 감쇠하게 할 수 있다.One end of the long rod 28 is chucked to the shelf and the end of the rod 28, which is not supported even though the center is supported by the anti-vibration device, sags downward due to its own weight to generate vibration due to the rotation of the shelf. However, in the present invention, since the vibration generated may be absorbed by the timing belt 24 having some flexibility, the vibration generated may be significantly attenuated.

이상에서 설명한 바와 같이 본 발명은 상하·좌우에서 지지로울러를 회동시켜 회전하는 봉재의 진동을 방지함에 있어서, 회전하는 봉재에서 불가피하게 발생하는 진동을 탄력이 있는 타이밍벨트로 흡수하게 할 수 있고 각각의 지지로울러를 유격없이 균일하게 가압할 수 있을 뿐 아니라 구성이 단순하여 제조비용을 절감하게 할 수 있게 하는 효과가 있다.As described above, in the present invention, in order to prevent the vibration of the rotating rod by rotating the support roller in the top, bottom, left and right, the inevitable vibration generated in the rotating rod can be absorbed by the elastic timing belt. Not only can the support roller be pressurized uniformly without play, but the configuration is simple, and thus the manufacturing cost can be reduced.

Claims (1)

NC선반의 스핀들 유니트에 소정의 가공량만큼씩 자동공급되는 길이가 긴 봉재의 회전진동을 방지하는 장치에 있어서,In the device for preventing the rotation vibration of long rods automatically supplied to the spindle unit of the NC lathe by a predetermined amount of processing, 상하·좌우로 서로 대칭되는 위치에 각각 쌍으로 구비되는 지지로울러와, 지지로울러를 회전이 자유롭게 지지하는 ㄱ자형의 레버(14)와, 레버의 일측연장부(15)가 가이드블록(22)을 관통하여 풀리(23)와 결합하고, 풀리에는 타이밍벨트(24)가 회전가능하게 결합되며, 타이밍벨트의 일측에는 에어실린더(26)의 로드(27)가 브라켓(25)에 의하여 결합되어 에어실린더의 신축에 따라 타이밍벨트가 전·후진 가능하게 구성되며, 타이밍벨트의 또 다른 일측에는 가이드블록의 장공(19)에 고정되는 텐션로울러(21)가 접지되는 것을 특징으로 하는 선반가공봉재의 진동방지장치.Support rollers are provided in pairs at positions symmetrical with each other in up, down, left and right directions, an L-shaped lever 14 for supporting the support roller freely in rotation, and one side extension portion 15 of the lever support the guide block 22. Through and coupled to the pulley 23, the timing belt 24 is rotatably coupled to the pulley, the rod 27 of the air cylinder 26 is coupled to one side of the timing belt by the bracket 25 to the air cylinder The timing belt is configured to be capable of moving forward and backward according to the expansion and contraction of the timing belt, and the tension roller 21 fixed to the long hole 19 of the guide block is grounded. Device.
KR1020070037739A 2007-04-18 2007-04-18 The vibration protect device of a lathe processing rod KR100812535B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857505A (en) * 2021-09-27 2021-12-31 山东农业工程学院 High rotational speed main shaft unit structure of built-in big moment of torsion of unclamping cylinder
KR102611183B1 (en) 2023-06-09 2023-12-07 나도현 Anti-vibration device for plated metal processing to prevent external damage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63278703A (en) 1987-03-27 1988-11-16 Ikura Seiki Seisakusho:Kk Steady rest for automatic lathe
JPH0375904U (en) * 1989-11-22 1991-07-30
JP3021188U (en) * 1995-08-01 1996-02-16 株式会社アルプスツール Whirling prevention device for bars
JPH11138301A (en) 1997-11-12 1999-05-25 Ikuryo Seiki Seisakusho:Kk Bar bracing device
JP2003211302A (en) * 2002-01-15 2003-07-29 Citizen Watch Co Ltd Rod material supplying method in numerically controlled lathe and the numerically controlled lathe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63278703A (en) 1987-03-27 1988-11-16 Ikura Seiki Seisakusho:Kk Steady rest for automatic lathe
JPH0375904U (en) * 1989-11-22 1991-07-30
JP3021188U (en) * 1995-08-01 1996-02-16 株式会社アルプスツール Whirling prevention device for bars
JPH11138301A (en) 1997-11-12 1999-05-25 Ikuryo Seiki Seisakusho:Kk Bar bracing device
JP2003211302A (en) * 2002-01-15 2003-07-29 Citizen Watch Co Ltd Rod material supplying method in numerically controlled lathe and the numerically controlled lathe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857505A (en) * 2021-09-27 2021-12-31 山东农业工程学院 High rotational speed main shaft unit structure of built-in big moment of torsion of unclamping cylinder
CN113857505B (en) * 2021-09-27 2022-07-05 山东农业工程学院 High rotational speed main shaft unit structure of built-in big moment of torsion of unclamping cylinder
KR102611183B1 (en) 2023-06-09 2023-12-07 나도현 Anti-vibration device for plated metal processing to prevent external damage

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