KR900003387B1 - Hemisphere grinding apparatus - Google Patents

Hemisphere grinding apparatus Download PDF

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Publication number
KR900003387B1
KR900003387B1 KR1019870014528A KR870014528A KR900003387B1 KR 900003387 B1 KR900003387 B1 KR 900003387B1 KR 1019870014528 A KR1019870014528 A KR 1019870014528A KR 870014528 A KR870014528 A KR 870014528A KR 900003387 B1 KR900003387 B1 KR 900003387B1
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KR
South Korea
Prior art keywords
grinding
workpiece
grinding wheel
spindle
hemisphere
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KR1019870014528A
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Korean (ko)
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KR890009538A (en
Inventor
김승목
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대우중공업 주식회사
이경훈
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Priority to KR1019870014528A priority Critical patent/KR900003387B1/en
Publication of KR890009538A publication Critical patent/KR890009538A/en
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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
    • B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
    • B24B11/02—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

The hemisphere grinding apparatus grinds the hemisphere of ball- shaped body in the center or end of rotating grindstone spindle. The apparatus includes spindle (3) connected with V belt (2), power motor (1), cylindrical holder (4) having cylindrical grindstone (6) covered by circumferential cap(5), workpiece (7) supported by headstock (8) and core holder

Description

반구(半球)연산 장치Hemisphere Computing Device

제 1 도는 본 발명에 의한 반구 연삭장치.1 is a hemisphere grinding device according to the present invention.

제 2 도는 본 발명의 요부 사시도.2 is a perspective view of main parts of the present invention.

제 3 도 (a)는 본 발명의 작동상태를 나타낸 단면도 (b)는 (a)의 측면도.Figure 3 (a) is a cross-sectional view showing an operating state of the present invention (b) is a side view of (a).

제 4 도는 본 발명의 정면도.4 is a front view of the present invention.

제 5 도는 종래 반구 연산장치의 구성도.5 is a block diagram of a conventional hemisphere computing device.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 모터 2 : V-벨트1: motor 2: V-belt

3 : 스핀들 4 : 홀더3: spindle 4: holder

5 : 캡 6 : 연삭숫돌5: cap 6: grinding wheel

7 : 가공물 8 : 주축대7: Workpiece 8: Headstock

9 : 삽입대9: insertion table

본 발명은 축의 중앙부 혹은 단부에 구(球)형상의 반구(半球)를 가공하는 연삭장치에 관한 것으로 특히 연삭숫돌이 마모되어도 드레싱(Dressing)이 필요없이 계속 작업에 임할 수 있도록한 반구 연삭장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding device for processing a sphere-shaped hemisphere at the center or end of a shaft. Particularly, the present invention relates to a hemispherical grinding device that enables a user to continue working without dressing even if the grinding wheel is worn. It is about.

연삭작업은 연삭숫돌을 고속회전 시키고 가공물에 상대운동을 주어 연삭숫돌 표면에 있는 숫돌 입자의 예리한 모서리로 공작물의 표면을 깎아내는 작업을 말하는 것으로서, 이에 사용되는 연삭숫돌은 정상작업의 상태에서는 숫돌입자의 첨예부가 무디어지면 파괴되고 탈락하여 새로운 숫돌입자가 표면에 나타나는 자생작업에 의해 계속 연삭작업을 할 수 있지만, 칩이나, 숫돌입자 부스러기가 기공에 차서 메워지나 마멸된 숫돌입자가 순조롭게 탈락하지 않고 표면이 매끈해지는 상태가 되어, 연삭성능이 저하되고 요구하는 형상의 정밀 작업을 할 수 없게 된다.Grinding work refers to the work of cutting the surface of the workpiece with the sharp edges of the grindstone particles on the grinding wheel surface by rotating the grinding wheel at high speed and giving relative movement to the workpiece. If the sharp edges of the blades are blunted, they can be destroyed and dropped, and the grinding work can be continued by the autogenous work in which new grinding particles appear on the surface.However, chips or grinding chips are filled with pores, but the worn grinding particles do not fall off smoothly. In this smooth state, the grinding performance is lowered, and the precise work of the required shape cannot be performed.

따라서 연삭작업으로 가공물을 가공하는 경우에는 상기와 같은 문제점을 숙지하여 작업에 임하되 일정기간 작업 후에는 연삭숫돌의 표면을 가공물의 형상과 치수 및 연삭성능에 높이기 위해 드레싱(Dresser)로써 깎아내어 새로운 입자가 나타나도록 드레싱(Dressing)을 해주어야만 하는 것이다.Therefore, in the case of processing the workpiece by grinding work, it is necessary to understand the above problems and work on it, but after a certain period of time, the surface of the grinding wheel is cut with a dressing to improve the shape, dimensions and grinding performance of the workpiece. Dressing should be done for the particles to appear.

일예로 축의 중심부와 단부를 반구 형상으로 가공하는 종래의 연삭작업은 제 5 도에 도시한 바와같이 연삭숫돌(54)을 드레셔(53)로써 둥근 오목형으로 드레싱하여 모터(51)에 연동되는 스핀들(52)에 고정하고, 가공물(55)을 주축대(56)와 심압대(57)로 지지하여 연삭숫돌(54)을 고속회전시키면서 가공물(55)에 상대운동을 주어 연삭가공하는 방식이 주로 채택되고 있으나, 이 방식은 가공면에 숫돌전면이 접촉되면서 가공하므로써 연삭숫돌이 쉽게 마모되고, 눈메움, 무딤으로 인해 가공면이 거칠어지거나 다듬질면에 떨림자리가 나타나기 때문에 양질의 제품을 가공하기가 곤란하므로 빈번하게 드레싱해야 하는등 양산체제에 적용하기에는 많은 문제점이 있었다.For example, the conventional grinding operation for processing the center and the end of the shaft in a hemispherical shape is as shown in FIG. It is fixed to the spindle 52, the workpiece 55 is supported by the main shaft 56 and the tailstock 57, while the grinding wheel 54 is rotated at a high speed while giving a relative movement to the workpiece 55, the grinding process Although it is mainly adopted, this method can be easily worn by grinding the grindstone by contacting the grindstone front surface, and the processing surface becomes rough or trimmed due to snow filling and dullness. Since it is difficult to dress frequently, there were many problems to apply to mass production system.

따라서 본 발명은 상기 문제점을 해결하기 위하여 안출된 것으로서, 연삭숫돌을 원통형으로 하여 숫돌의 내측 선단부와 가공물의 외주면을 직각으로 접촉시켜 상호 회전하면서 작업이 이루어지도록 하므로서 숫돌이 마모되더라도 드레싱이 필요없이 계속 연삭작업에 임할 수 있는 연삭장치를 제공하려는데 그 목적이 있는 것이다.Therefore, the present invention has been made in order to solve the above problems, the grinding wheel is made into a cylindrical shape to contact the inner leading end of the grindstone and the outer peripheral surface of the workpiece at a right angle so that the work is made while rotating each other without the need for dressing wear continues The purpose is to provide a grinding device for the grinding operation.

이하 본 발명을 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도시한 바와 같이, 스핀들(3)은 모터(1)의 동력을 V벨트(2)로서 전달받도록 형성시키고 스핀들(3)의 하단에는 원통형홀더(4)를 장착하되, 홀더(4)의 내부에는 외주면에 캡(5)을 씌운 원통형 연삭숫돌(6)이 끼워졌으며, 그 하부에는 가공물(7)을 주축대(8)와 심압대(9)로 지지하도록 구성한 것이다.As shown, the spindle 3 is formed to receive the power of the motor 1 as the V-belt (2) and the cylindrical holder (4) is mounted on the lower end of the spindle (3), the inside of the holder (4) The cylindrical grinding wheel (6) with the cap (5) on the outer circumferential surface is fitted, the lower part is configured to support the workpiece (7) by the headstock (8) and tailstock (9).

이러한 구성의 본 발명은 모터(1)의 동력이 스핀들(3)을 고속회전시키면 그 하단에 장착된 연삭숫돌(6)은 홀더(4)와 함께 고속회전하면서, 연삭숫돌(6)의 중심선과 직각방향으로 주축대(8)와 심압대(9)에 지지되어, 저속으로 회전하는 가공물(7)을 가공하게 되는 것이다.According to the present invention, when the power of the motor 1 rotates the spindle 3 at high speed, the grinding wheel 6 mounted at the lower end thereof rotates at high speed together with the holder 4, and the center line of the grinding wheel 6 The workpiece 7 which is supported by the main shaft 8 and the tail stock 9 in the perpendicular direction and rotates at a low speed is processed.

즉, 연삭숫돌(6)의 내측선단부와 가공물(7)의 외주면이 직각방향으로 접촉되어 상호 회전하면서 작업이 이루어지므로 연삭숫돌(6)의 입자가 마모되더라도 연삭숫돌(6)의 내측 선단부와 가공물(7)의 외주면은 항상 원형으로 접촉하면서 작업에 임하게 된다.That is, the inner leading end of the grinding wheel 6 and the outer peripheral surface of the workpiece 7 are contacted at right angles to rotate each other, so that the work is performed, even if the particles of the grinding wheel 6 wear out, and the inner leading end of the grinding wheel 6 and the workpiece. The outer circumferential surface of (7) always comes into contact with a circle while working.

따라서 별도의 드레싱이 필요없이 정밀도가 높은 반구형상의 연삭작업을 할 수 있게 되는 것이다. 여기서 연삭숫돌(6)외주면에 캡(5)을 씌운것은 연삭숫돌(6)의 파손 방지를 위한 것이다.Therefore, it is possible to perform a high precision hemispherical grinding without the need for a separate dressing. Here, the cap 5 on the outer circumferential surface of the grinding wheel 6 is for preventing the grinding of the grinding wheel 6.

이상과 같이 본 발명은 간단한 구조로 구성되어 반구 형상의 가공물을 가공하는데 있어서, 별도의 드레싱이 필요없기 때문에 가공시간이 빠르고, 숙련공이 요구되지 않으며, 한가지의 연삭숫돌로써 넓은 범위의 치수를 가공할 수 있어 경제적이고 능률적이며, 양산체제에 적용이 가능한 발명인 것이다.As described above, the present invention has a simple structure, and in order to process a hemispherical workpiece, no separate dressing is required, so processing time is fast and skilled workers are not required, and a single grinding wheel can process a wide range of dimensions. It is an invention that can be economically and efficiently and applicable to mass production systems.

Claims (1)

스핀들(3)은 모터(1)의 동력을 V벨트(2)로서 전달받도록 형성시키고 스핀들(3)의 하단에는 원통형홀더(4)를 장착하되, 홀더(4)의 내부에는 캡(5)을 씌운 원통형 연삭숫돌(6)이 끼워졌으며, 그 하부에는 가공물(7)을 주축대(8)와 심압대(9)로 지지하여서된 것을 특징으로 하는 반구 연삭장치.The spindle 3 is configured to receive the power of the motor 1 as the V-belt 2 and to mount the cylindrical holder 4 at the lower end of the spindle 3, the cap (5) inside the holder (4) Hemispherical grinding device, characterized in that the cylindrical grinding wheel (6) is fitted, and the lower part of the cylindrical grinding wheel (6) is supported by the headstock (8) and tailstock (9).
KR1019870014528A 1987-12-18 1987-12-18 Hemisphere grinding apparatus KR900003387B1 (en)

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Application Number Priority Date Filing Date Title
KR1019870014528A KR900003387B1 (en) 1987-12-18 1987-12-18 Hemisphere grinding apparatus

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Application Number Priority Date Filing Date Title
KR1019870014528A KR900003387B1 (en) 1987-12-18 1987-12-18 Hemisphere grinding apparatus

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KR890009538A KR890009538A (en) 1989-08-02
KR900003387B1 true KR900003387B1 (en) 1990-05-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7356927B2 (en) 2002-08-09 2008-04-15 Dong-Teak Chung Method for making ceramic spheres

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113579910B (en) * 2021-07-25 2023-09-29 安徽普瑞昇机械设备有限公司 Automobile part sphere polishing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7356927B2 (en) 2002-08-09 2008-04-15 Dong-Teak Chung Method for making ceramic spheres

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