KR102512623B1 - Grinding center assembly - Google Patents

Grinding center assembly Download PDF

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Publication number
KR102512623B1
KR102512623B1 KR1020220037314A KR20220037314A KR102512623B1 KR 102512623 B1 KR102512623 B1 KR 102512623B1 KR 1020220037314 A KR1020220037314 A KR 1020220037314A KR 20220037314 A KR20220037314 A KR 20220037314A KR 102512623 B1 KR102512623 B1 KR 102512623B1
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South Korea
Prior art keywords
body portion
head
center
case
spindle
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KR1020220037314A
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Korean (ko)
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서명석
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서명석
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
    • B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work

Abstract

The present invention relates to a center assembly for grinding, in which a center part (10) is installed at the front of a case (100), inside the case (100), formed is a space where a grinder center, a spindle, comprising the center part (10), a head part (20), and a body part (30) from a front end to the back is provided, and the back of the case is sealed with a plug (40). In addition, a double angular bearing (1), a side thrust bearing (2), a metal bushing, a retainer, and the like are installed on the outer periphery of the spindle. Since the metal bushing is inserted and an oil film is formed with a spindle oil at the back, it is possible to prevent the generation of micro-vibration from the spindle, reducing chattering. Therefore, there are no quality defects such as wave patterns caused by chattering and the lifespan may be extended.

Description

연마용 센터 조립체{Grinding center assembly}Grinding center assembly

본발명은 연마용 센터 조립체에 관한 것으로, 보다 상세하게는 메탈부시를 삽입설치하고, 후방의 스핀들유로 인한 유막형성으로 스핀들에서 발생되는 미세진동을 방지하여 채터링이 적고, 물결무늬등 채터링에 의해 의한 가공물의 품질하자가 없으며, 가공물의 수명이 연장되는 연마용 센터 조립체에 관한 것이다.The present invention relates to a center assembly for polishing, and more particularly, by inserting and installing a metal bush, and preventing micro-vibration generated from a spindle by forming an oil film due to spindle oil at the rear, thereby reducing chattering and preventing chattering such as wavy patterns. It relates to an abrasive center assembly in which there is no quality defect of a workpiece due to the process and the life of the workpiece is extended.

일반적으로 선반에서 공작물을 연마 가공하기 위해서는 선반의 주축대와 심압대 사이에 공작물을 회전 가능한 상태로 장착하여야만 한다. 따라서 공작물의 양단이 고정되는 주축대와 심압대에 센터(center)를 설치하고, 그 센터로 하여금 공작물을 지지케 한다. 양쪽 센터의 중심이 정확히 일치하도록 설치되면 주축이 회전할 때 압연롤이 흔들림 없이 안정적으로 회전된다. 상기 센터에 대한 종래특허기술의 일례로서 10-2011-0046700몸체의 선단부에 형성된 콘부와;In general, in order to grind a workpiece in a lathe, the workpiece must be mounted in a rotatable state between a headstock and a tailstock of the lathe. Therefore, a center is installed on the headstock and tailstock to which both ends of the workpiece are fixed, and the center supports the workpiece. When the centers of both centers are installed to match exactly, the rolling roll rotates stably without shaking when the main shaft rotates. As an example of the conventional patented technology for the center, 10-2011-0046700 a cone formed at the front end of the body;

상기 콘부로부터 몸체 후단에 이르기까지 외경의 변화 없이 형성된 원주부와;a circumferential portion formed without a change in outer diameter from the cone portion to the rear end of the body;

상기 원주부로부터 몸체의 내측으로 형성되어 센터가 삽입되는 센터삽입홀;a center insertion hole formed from the circumference to the inside of the body and into which a center is inserted;

을 포함하는 압연롤 연마 가공용 선반의 보조센터가 공개되어 있다.An auxiliary center of a lathe for abrasive processing of a rolling roll including a is disclosed.

또한, 등록번호 10-1140289호에는 연마용 스핀들 로터 상의 센터링 장치를 포함하는 클램핑장치, 및 이와 같은 센터링 장치를 포함하는 회전 부품이 공개되어 있다.Also, Registration No. 10-1140289 discloses a clamping device including a centering device on an abrasive spindle rotor, and a rotating component including such a centering device.

그러나 상기 종래기술들은 채터링이 많아 물결무늬등 채터링에 의해 의한 공작물표면에 하자가 발생하며 공구의 수명이 짧아지는 단점이 있었다.However, the above conventional techniques have a lot of chattering, and defects occur on the surface of the workpiece due to chattering, such as wave patterns, and the life of the tool is shortened.

따라서 본발명은 상기와 같은 문제점을 해결하고자 안출된 것으로, 메탈부시를 삽입설치하고, 후방의 스핀들유로 인한 유막형성으로 스핀들에서 발생되는 미세진동을 방지하여 채터링이 적고, 물결무늬등 채터링에 의해 의한 품질하자가 없으며, 가공물의 수명이 연장되는 연마용 센터 조립체를 제공하고자 하는 것이다.Therefore, the present invention has been devised to solve the above problems, by inserting and installing a metal bush, and preventing microvibration generated from the spindle by forming an oil film due to the spindle oil at the rear, reducing chattering and reducing chattering such as wave patterns. It is intended to provide an abrasive center assembly in which there is no quality defect due to the

본발명은 연마용 센터 조립체에 관한 것으로, 케이스(100) 전방에 센터부(10)가 설치되며 케이스(100) 내부는 공간부가 형성되어 선단으로부터 후방으로 스핀들인 센터부(10), 머리부(20), 몸체부(30)로 구성되는 연삭기 센터가 내장되며, 케이스 후방은 플러그(40)로 밀봉되는 것을 특징으로 한다.The present invention relates to a center assembly for polishing, wherein a center portion 10 is installed in front of a case 100, and a space portion is formed inside the case 100 to include a center portion 10 that is spindled backward from the front end, a head portion ( 20), the grinding machine center consisting of the body portion 30 is built-in, and the rear of the case is sealed with a plug 40.

또한, 스핀들 외주연에는 더블앵귤베어링(1), 측면스러스트베어링(2), 메탈부시, 리테이너 등이 설치되는 것을 특징으로 한다.In addition, it is characterized in that a double angular bearing (1), a side thrust bearing (2), a metal bush, a retainer, etc. are installed on the outer periphery of the spindle.

따라서 본발명은 메탈부시를 삽입설치하고, 후방의 스핀들유로 인한 유막형성으로 스핀들에서 발생되는 미세진동을 방지하여 채터링이 적고, 물결무늬등 채터링에 의해 의한 품질하자가 없으며, 가공물의 수명이 연장되는 현저한 효과가 있다.Therefore, the present invention inserts and installs a metal bush, and prevents micro-vibration generated from the spindle by forming an oil film due to the spindle oil at the rear, resulting in less chattering, no quality defects caused by chattering such as wave patterns, and a longer lifespan of the workpiece. There is a remarkable effect of prolonging.

도 1은 본발명 연마용 센터 조립체 사진
도 2는 본발명 연마용 센터 조립체 단면도1 is a photograph of the center assembly for polishing of the present invention
Figure 2 is a cross-sectional view of the polishing center assembly of the present invention

본발명은 연마용 센터 조립체에 관한 것으로, 케이스(100) 전방에 센터부(10)가 설치되며 케이스(100) 내부는 공간부가 형성되어 선단으로부터 후방으로 스핀들인 센터부(10), 머리부(20), 몸체부(30)로 구성되는 연삭기 센터가 내장되며, 케이스 후방은 플러그(40)로 밀봉되는 것을 특징으로 한다.The present invention relates to a center assembly for polishing, wherein a center portion 10 is installed in front of a case 100, and a space portion is formed inside the case 100 to include a center portion 10 that is spindled backward from the front end, a head portion ( 20), the grinding machine center consisting of the body portion 30 is built-in, and the rear of the case is sealed with a plug 40.

또한, 상기 머리부는 전방머리부(21)와 후방머리부(22)로 구성되되, 전방머리부(21)의 지름이 후방머리부(22)보다 큰 것을 특징으로 한다.In addition, the head is composed of a front head (21) and a rear head (22), characterized in that the front head (21) has a larger diameter than the rear head (22).

또한, 상기 후방머리부(22) 외주연에는 더블앵귤베어링(1)이 설치되는 것을 특징으로 한다.In addition, it is characterized in that the double angular bearing (1) is installed on the outer periphery of the rear head (22).

또한, 더블앵귤베어링 후방에는 측면스러스트베어링(2)이 설치되는 것을 특징으로 한다.In addition, it is characterized in that the side thrust bearing (2) is installed behind the double angular bearing.

또한, 후방머리부(22)와 전방몸체부(31) 사이는 경사면(3)이 형성되는 것을 특징으로 한다.In addition, it is characterized in that the inclined surface (3) is formed between the rear head (22) and the front body (31).

또한, 후방몸체부(32)의 후방의 케이스의 빈공간에는 스핀들유(8)가 내장되며 빈공간후방은 캡(9이 삽입밀봉되는 것을 특징으로 한다.In addition, the spindle oil 8 is built into the empty space of the case at the rear of the rear body 32, and the cap 9 is inserted and sealed at the rear of the empty space.

본발명을 첨부도면에 의해 상세히 설명하면 다음과 같다.도 1은 본발명 연마용 센터 조립체 사진, 도 2는 본발명 연마용 센터 조립체 단면도이다.The present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a photograph of the polishing center assembly of the present invention, and FIG. 2 is a cross-sectional view of the polishing center assembly of the present invention.

본발명은 케이스(100) 전방에 센터부(10)가 설치되며 케이스(100) 내부는 공간부가 형성되어 선단으로부터 후방으로 센터부(10), 머리부(20), 몸체부(30)로 구성된다. 상기 케이스 후방은 캡(40)으로 밀봉되어 있다. 센터부(10), 머리부(20), 몸체부(30)는 일체로 회전체인 스핀들을 구성한다.In the present invention, the center portion 10 is installed in the front of the case 100, and a space portion is formed inside the case 100, and is composed of the center portion 10, the head portion 20, and the body portion 30 from the front end to the rear. do. The rear of the case is sealed with a cap 40. The center portion 10, the head portion 20, and the body portion 30 integrally constitute a spindle, which is a rotating body.

상기 머리부는 전방머리부(21)와 후방머리부(22)로 구성되되, 전방머리부(21)의 지름이 후방머리부(22)보다 크게 형성된다.The head is composed of a front head (21) and a rear head (22), and the diameter of the front head (21) is larger than that of the rear head (22).

상기 후방머리부(22) 외주연에는 더블앵귤베어링(1)이 설치되어 회전을 원활하게 하며, 더블앵귤베어링 후방에는 측면스러스트베어링(2)이 설치되어 회전을 원활하게 한다.A double angular bearing 1 is installed on the outer periphery of the rear head 22 to facilitate rotation, and a side thrust bearing 2 is installed at the rear of the double angular bearing to facilitate rotation.

후방머리부(22)와 전방몸체부(31) 사이는 경사면(3)이 형성된다.An inclined surface (3) is formed between the rear head (22) and the front body (31).

상기 몸체부(30)는 전방몸체부(31), 중간몸체부(32)와 후방몸체부(33)로 구성되며 전방몸체부(31), 중간몸체부(32)의 지름이 후방몸체부(33)보다 크게 형성된다.The body portion 30 is composed of a front body portion 31, an intermediate body portion 32, and a rear body portion 33, and the diameter of the front body portion 31 and the intermediate body portion 32 is the rear body portion ( 33) is larger.

상기 전방몸체부(31)과 중간몸체부의 중간은 단턱(4)이 형성되며, 전방몸체부(31)의 단턱(4)을 경계로 전방외주연에는 리테이너(5)가 설치되고 중간몸체부(32) 외주연에는 메탈부시(6)가 설치되어 후방의 스핀들유가 누설되지 않게 한다.A step 4 is formed in the middle of the front body portion 31 and the intermediate body portion, and a retainer 5 is installed on the outer periphery of the front bordering the step 4 of the front body portion 31, and the intermediate body portion ( 32) A metal bush (6) is installed on the outer periphery to prevent leakage of spindle oil at the rear.

후방몸체부(33)의 외주연에는 니들베어링(7)이 설치된다.A needle bearing 7 is installed on the outer periphery of the rear body 33.

그리고 본발명의 특징중 하나로서 후방몸체부(33)의 후방의 케이스의 빈공간에는 스핀들유(8)가 내장되며 빈공간후방은 캡(9)이 삽입밀봉되어 있다. 회전동심도는 0.001이하이다.And, as one of the characteristics of the present invention, the spindle oil 8 is built into the empty space of the case at the rear of the rear body 33, and the cap 9 is inserted and sealed at the rear of the empty space. Rotational concentricity is less than 0.001.

따라서 본발명은 메탈부시를 삽입설치하고, 후방의 스핀들유로 인한 유막형성으로 스핀들에서 발생되는 미세진동을 방지하여 채터링이 적고, 물결무늬등 채터링에 의해 의한 품질하자가 없으며, 수명이 연장되는 현저한 효과가 있다.Therefore, the present invention inserts and installs a metal bush, and prevents micro-vibration generated from the spindle by forming an oil film due to the spindle oil at the rear, resulting in less chattering, no quality defects due to chattering such as wave patterns, and an extended lifespan. It has a remarkable effect.

100 : 케이스 10 : 센터부
20 : 머리부
21 : 전방머리부 22 : 후방머리부
30 : 몸체부
31 : 전방몸체부 32: 중간몸체부
33 : 후방몸체부
40 : 캡
1 더블앵귤베어링
2 : 측면스러스트베어링 3; 경사면
4 : 단턱 5 : 리테이너
6 : 메탈부시
7 : 니들베어링
8 : 스핀들유 9 : 캡100: case 10: center part
20: head
21: front head 22: rear head
30: body part
31: front body 32: middle body
33: rear body
40: cap
1 Double Angular Bearing
2: side thrust bearing 3; incline
4: step 5: retainer
6 : Metal Bush
7: needle bearing
8: spindle oil 9: cap

Claims (3)

케이스(100) 전방에 센터부(10)가 설치되며 케이스(100) 내부는 공간부가 형성되어 선단으로부터 후방으로 스핀들인 센터부(10), 머리부(20), 몸체부(30)로 구성되는 연삭기 센터가 내장되며, 케이스 후방은 캡(40)으로 밀봉되는 것으로,상기 몸체부(30)에는 리테이너(5), 메탈부시(6)가 설치되는 것으로, 상기 몸체부(30)에는 리테이너(5), 메탈부시(6)가 설치되는 연마용 센터 조립체에 있어서,
상기 머리부(20)는 전방머리부(21)와 후방머리부(22)로 구성되되, 전방머리부(21)의 지름이 후방머리부(22)보다 크게 형성되며, 상기 후방머리부(22) 외주연에는 더블앵귤베어링(1)이 설치되어 회전을 원활하게 하며, 더블앵귤베어링 후방에는 측면스러스트베어링(2)이 설치되어 회전을 원활하게 하며, 후방머리부(22)와 전방몸체부(31) 사이는 경사면(3)이 형성되는 것이며,
상기 몸체부(30)는 전방몸체부(31), 중간몸체부(32)와 후방몸체부(33)로 구성되며 전방몸체부(31), 중간몸체부(32)의 지름이 후방몸체부(33)보다 크게 형성되되, 상기 전방몸체부(31)와 중간몸체부의 중간은 단턱(4)이 형성되며, 전방몸체부(31)의 단턱(4)을 경계로 전방외주연에는 리테이너(5)가 설치되고 중간몸체부(32) 외주연에는 메탈부시(6)가 설치되어 후방의 스핀들유가 누설되지 않게 하며, 후방몸체부(33)의 외주연에는 니들베어링(7)이 설치되고, 상기후방몸체부(33)의 후방의 케이스의 빈공간에는 스핀들유(8)가 내장되며 빈공간후방은 캡(9)이 삽입밀봉되어 있는 것이어서, 회전동심도가 0.001 이하가 되며, 스핀들유로 인한 유막형성으로 스핀들에서 발생되는 미세진동을 방지하여 채터링이 적은 것을 특징으로 하는 연마용 센터 조립체A center portion 10 is installed in front of the case 100, and a space portion is formed inside the case 100, which is composed of a center portion 10, a head portion 20, and a body portion 30 that are spindled from the front end to the rear. The grinding machine center is built in, and the rear of the case is sealed with a cap 40, and a retainer 5 and a metal bush 6 are installed in the body portion 30, and the retainer 5 in the body portion 30 ), in the polishing center assembly in which the metal bush 6 is installed,
The head 20 is composed of a front head 21 and a rear head 22, the front head 21 has a larger diameter than the rear head 22, and the rear head 22 ) A double angular bearing (1) is installed on the outer periphery to facilitate rotation, and a side thrust bearing (2) is installed at the rear of the double angular bearing to facilitate rotation, and the rear head (22) and the front body ( 31) between which the inclined surface 3 is formed,
The body portion 30 is composed of a front body portion 31, an intermediate body portion 32, and a rear body portion 33, and the diameter of the front body portion 31 and the intermediate body portion 32 is the rear body portion ( 33), but the middle of the front body portion 31 and the intermediate body portion is formed with a step 4, and a retainer 5 is formed on the outer circumference of the front bordering the step 4 of the front body portion 31 Is installed, and a metal bush 6 is installed on the outer periphery of the intermediate body portion 32 to prevent leakage of spindle oil at the rear, and a needle bearing 7 is installed on the outer periphery of the rear body portion 33, and the rear Spindle oil (8) is embedded in the empty space of the case at the rear of the body part (33), and the cap (9) is inserted and sealed at the rear of the empty space, so that the rotational concentricity is less than 0.001, and the oil film is formed due to the spindle oil. Abrasive center assembly characterized by less chattering by preventing micro-vibration generated from the spindle 삭제delete 삭제delete
KR1020220037314A 2022-03-25 2022-03-25 Grinding center assembly KR102512623B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07237079A (en) * 1993-12-28 1995-09-12 Nissan Motor Co Ltd Removing device for chip of work
JP2002239818A (en) * 2001-02-15 2002-08-28 Sugino Mach Ltd Tool unclamp device of machine tool
KR20030031451A (en) * 2001-10-15 2003-04-21 도시바 기카이 가부시키가이샤 Tool, tool holder, and machine tool
KR20100007666U (en) * 2009-01-21 2010-07-29 박성원 Live center
KR20180001855A (en) * 2016-06-28 2018-01-05 이정훈 High speed bearing center for protecting cutting oil and alien matters in CNC lathe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07237079A (en) * 1993-12-28 1995-09-12 Nissan Motor Co Ltd Removing device for chip of work
JP2002239818A (en) * 2001-02-15 2002-08-28 Sugino Mach Ltd Tool unclamp device of machine tool
KR20030031451A (en) * 2001-10-15 2003-04-21 도시바 기카이 가부시키가이샤 Tool, tool holder, and machine tool
KR20100007666U (en) * 2009-01-21 2010-07-29 박성원 Live center
KR20180001855A (en) * 2016-06-28 2018-01-05 이정훈 High speed bearing center for protecting cutting oil and alien matters in CNC lathe

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