KR100514538B1 - A roller-bearing manufacturing methood - Google Patents
A roller-bearing manufacturing methood Download PDFInfo
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- KR100514538B1 KR100514538B1 KR10-2003-0057455A KR20030057455A KR100514538B1 KR 100514538 B1 KR100514538 B1 KR 100514538B1 KR 20030057455 A KR20030057455 A KR 20030057455A KR 100514538 B1 KR100514538 B1 KR 100514538B1
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- bearing material
- bearing
- cutting
- processing
- cutting part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/12—Forming profiles on internal or external surfaces
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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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Forging (AREA)
Abstract
본 발명은 로울러 베어링 가공방법에 관한 것으로, 로울러 베어링의 양측 모서리를 가공함에 있어 절삭 가공이 아닌 낙하 충격에 의한 단조 가공이 이루어지게 하여 완성된 베어링의 강성을 높임과 작업성을 향상 시킬 수 있도록 한 것이다.The present invention relates to a roller bearing processing method, in the machining of both edges of the roller bearing forged machining by dropping impact, not cutting, so as to improve the rigidity and workability of the finished bearing will be.
즉, 본 발명은 절단부위를 가공하는 절단부 가공공정(200)을 내벽에 등간격으로 버킷(212)이 구비된 회전차(211)에 베어링소재(10)를 넣고 일정 시간동안 회전 낙하시키며 절단부위가 낙하 및 상호충돌에 의하여 곡면으로 단조가공되게 하는 낙하단조공정(210)과, 상기 낙하단조공정(210)을 통하여 절단부위가 곡면 단조가공된 베어링소재(10)를 회전되는 드럼(221)속에 가공석(222)과 물을 함께 넣어 낙하단조공정(210)에서 발생한 베어링소재(10) 표면의 상처를 연마제거하는 표면연마공정(220)과, 상기 표면연마공정(220)을 통하여 표면이 매끈하게 가공된 베어링소재(10)의 낙하단조공정(210)에 있어 베어링소재(10)의 직경보다 굵게 단조가공형성된 부위를 연삭제거하는 외경연각공정(230)으로 구성한 것이다.That is, in the present invention, the cutting part machining process 200 for processing the cutting part put the bearing material 10 in the rotary car 211 provided with the bucket 212 at equal intervals on the inner wall and rotates for a predetermined time to drop the cutting part Drop forging process 210 to be forged to the curved surface by the falling and mutual collision, and the bearing material 10, the forged surface is cut through the drop forging process 210 in the drum 221 is rotated The surface is smoothed through the surface grinding process 220 and the surface polishing process 220 to remove the wound on the surface of the bearing material 10 generated in the drop forging process 210 by putting the processed stone 222 and water together. In the drop-forging process 210 of the processed bearing material 10, it is composed of an outer diameter softening process 230 for soft removal of the portion formed by forging thicker than the diameter of the bearing material 10.
Description
본 발명은 로울러 베어링 가공방법에 관한 것으로, 더욱 상세하게는 로울러 베어링의 양측 모서리를 가공함에 있어 절삭 가공이 아닌 낙하 충격에 의한 단조 가공이 이루어지게 하여 완성된 베어링의 강성을 높임과 작업성을 향상 시킬 수 있도록 함을 목적으로 한 것이다.The present invention relates to a roller bearing processing method, and more particularly, in the machining of both edges of the roller bearing, forging by drop impact instead of cutting, thereby increasing the rigidity and improved workability of the finished bearing. The purpose is to make it possible.
일반적으로, 로울러 베어링은 축하중이 많이 작용되는 곳에 사용되는 것으로, 그 제조는 봉상의 선재를 일정 길이로 절단하는 소재절단공정과, 상기 소재절단공정을 통하여 일정 길이로 절단된 베어링소재의 절단부위를 절삭 또는 연삭가공하는 절단부 가공공정과, 상기 절단부 가공공정이 완료된 베어링소재의 강성을 높이고 내부 응력을 제거하기 위하여 가열후 유냉시키는 템퍼링과 같은 열처리공정과, 상기 열처리공정이 완료된 베어링소재의 직경오차의 수정 및 표면 정밀도를 높이기 위하여 연마가공하는 마무리가공공정으로 이루어진 것이다.In general, the roller bearing is used in a place where a lot of axial action, the manufacturing is a material cutting process of cutting the rod-shaped wire rod to a certain length, and the cutting portion of the bearing material cut to a certain length through the material cutting process Cutting process for cutting or grinding the cutting process, heat treatment process such as tempering for heating and oil cooling to increase the rigidity of the bearing material where the cutting process is completed, and to remove internal stress, and diameter error of the bearing material after the heat treatment process is completed In order to improve the surface accuracy and to improve the polishing process is made of a finishing process.
그러나, 상기한 바와 같이 공정으로 이루어진 종래의 베어링 가공방법에 있어서 절단부위의 모서리를 가공하는 절단부 가공공정이 절삭 또는 단순 연삭을 통하여만 이루어지게 되어 있어 가공된 베어링소재의 금속 조직이 연속되는 조직을 이루이지 못하고 조직과의 결합이 끊어진 상태를 이루어 강성이 저하되는 등의 문제점이 있었다.However, in the conventional bearing processing method as described above, the cutting part processing process for processing the edge of the cutting part is made only through cutting or simple grinding, so that the metal structure of the processed bearing material is continuous. There was a problem such that the rigidity is lowered due to a state in which the bond with the tissue is broken.
또한, 상기한 바와 같은 절삭 또는 연삭에 의한 절다부위 가공은 충격하중이 집중될 수 있는 모서리가 형성되어 강성이 저하되는 등의 문제점이 있었다.In addition, the cutting or grinding of the cut portion by the grinding as described above had a problem such that the edge is formed to concentrate the impact load is reduced rigidity.
이에, 본 발명은 상술한 문제점을 해결하기 위하여 창출한 것으로, 일정 길이로 절단된 베어링소재의 절단부 가공공정을 회전 낙하충격에 의한 단조가공으로 이루어지게 한 것이다. Thus, the present invention was created to solve the above-mentioned problems, it is to be made by the forging process by the rotary drop impact the cutting process of the bearing material cut to a certain length.
이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.
본 발명은 절단부위의 가공이 연속되는 조직을 갖는 가공이 이루어지게 한 것으로, 봉상의 선재를 일정 길이로 절단하는 소재절단공정(100)과, 상기 소재절단공정(100)을 통하여 일정 길이로 절단된 베어링소재(10)의 절단부위를 가공하는 절단부 가공공정(200)과, 상기 절단부 가공공정(200)이 완료된 베어링소재(10)의 강성을 높이고 내부 응력을 제거하기 위하여 가열후 유냉시키는 템퍼링과 같은 열처리공정(300)과, 상기 열처리공정(300)이 완료된 베어링소재(10)의 직경오차의 수정 및 표면 정밀도를 높이기 위하여 연마가공하는 마무리 가공공정(400)으로 이루어진 베어링 가공방법에 있어서, 절단부위를 가공하는 절단부 가공공정(200)을 내벽에 등간격으로 버킷(212)이 구비된 회전차(211)에 베어링소재(10)를 넣고 일정 시간동안 회전 낙하시키며 절단부위가 낙하 및 상호충돌에 의하여 곡면으로 단조가공되게 하는 낙하단조공정(210)과, 상기 낙하단조공정(210)을 통하여 절단부위가 곡면 단조가공된 베어링소재(10)를 회전되는 드럼(221)속에 가공석(222)과 물을 함께 넣어 낙하단조공정(210)에서 발생한 베어링소재(10) 표면의 상처를 연마제거하는 표면연마공정(220)과, 상기 표면연마공정(220)을 통하여 표면이 매끈하게 가공된 베어링소재(10)의 낙하단조공정(210)에 있어 베어링소재(10)의 직경보다 굵게 단조가공형성된 부위를 연삭제거하는 외경연각공정(230)으로 구성한 것이다.The present invention is to make a processing having a continuous structure of the cutting portion, the material cutting process 100 for cutting a rod-shaped wire rod to a predetermined length, and cut to a predetermined length through the material cutting process (100) Cutting part processing step (200) for processing the cut portion of the bearing material 10, and tempering and oil-cooled after heating to increase the rigidity of the bearing material 10, the cutting part processing process 200 is completed and to remove internal stress In the bearing processing method comprising the same heat treatment step (300) and the finishing process step (400) of grinding to improve the surface accuracy of the diameter error of the bearing material 10, the heat treatment step 300 is completed, cutting The cutting part processing process 200 for processing the part is placed on the inner wall of the bearing material 10 in the rotary car 211 provided with the bucket 212 at equal intervals and rotated for a predetermined time, the cutting part is Drop forging process 210 to be forged to the curved surface by the lower and mutual collision, and the processing material in the drum 221 rotating the bearing material 10 for which the cutting portion is forged through the drop forging process 210 222 and the surface are polished to remove the wound on the surface of the bearing material 10 generated in the drop forging step 210, and the surface is smoothly processed through the surface polishing step 220 In the drop forging process 210 of the bearing material 10, the outer diameter softening process 230 for soft removal of the portion formed by forging thicker than the diameter of the bearing material 10 is configured.
이하, 본 발명에 의한 베어링의 가공과정을 설명하면 다음과 같다.Hereinafter, the processing of the bearing according to the present invention will be described.
상기한 바와 같이 절단부위를 가공하는 절단부 가공공정(200)을 베어링소재(10)를 내벽에 등간격으로 버킷(212)이 구비된 회전차(211)에 넣고 일정시간동안 회전 낙하시키며 절단부위가 낙하 및 상호 충돌에 의하여 곡면으로 단조가공되게 하는 베어링소재(10) 낙하단조공정(210)과, 상기 낙하단조공정(210)을 통하여 절단부위가 곡면 단조가공된 베어링소재(10)를 회전되는 드럼(221)속에 가공석(222)과 물을 함께 넣어 낙하단조공정(210)에서 발생한 베어링소재(10) 표면의 상처를 연마제거하는 표면연마공정(220)과, 상기 표면연마공정(220)을 통하여 표면이 매끈하게 가공된 베어링소재(10)의 낙하단조공정(210)에 있어 베어링소재(10)의 직경보다 굵게 단조가공형성된 부위를 연삭제거하는 외경연각공정(230)으로 구성한 본 발명에 의한 베어링의 가공은 우선 통상의 베어링 가공공정과 동일하게 소재절단공정(100)을 통하여 연속하여 공급되는 선재를 가공하고자하는 베어링의 길이에 따라 일정길이로 절단한다.As described above, the cutting part machining process 200 for processing the cutting part is placed in the rotating material 211 provided with the bucket 212 at equal intervals on the inner wall of the bearing material 10 and rotates and drops for a predetermined time. Bearing material 10 to be forged to the curved surface by dropping and mutual collision Drop forging process 210, the drum for rotating the bearing material 10, the forging surface is cut through the drop forging process 210 Through the surface polishing step 220 and the surface polishing step 220 to remove the wound on the surface of the bearing material 10 generated in the drop forging step 210 by putting the processed stone 222 and water together in the (221). The bearing according to the present invention constituted by an outer diameter anneal step 230 for removing and removing the forged part formed at a thickness greater than the diameter of the bearing material 10 in the drop forging process 210 of the bearing material 10 having a smooth surface. First of all, normal processing Flooring according to the processing step and the length of the bearing to which the wire is processed identically continuously supplied via a material cutting step 100 is cut into a predetermined length.
이상과 같이 소재절단공정(100)을 통하여 일정길이로 절단된 베어링소재(10)는 일정속도로 회전되며 내부벽에 다수의 버킷(212)이 구비된 드럼(221)속에 넣고 회전시키는 절단부 가공공정(200)의 소재 낙하단조공정(210)을 통하여 절단부가 곡면 단조가공되게 되는데 그 과정은 버킷(212)에 담겨지 베어링소재(10)가 회전차(211)의 회전에 의하여 상측으로 이동되다가 해당 버킷(212)이 상사점에 도달하게 되면 쏟아져 내리게 되고, 쏟아져 내리는 베어링소재(10)는 상호 충돌과 낙하면과의 충돌에 의하여 가장 강성이 약한 절단부의 모서리부더 단조가공되어서 전체적으로 고른 강성을 갖는 구형으로 가공되게 되는 것이다.As described above, the bearing material 10 cut to a certain length through the material cutting process 100 is rotated at a constant speed and cut into a drum 221 provided with a plurality of buckets 212 on the inner wall. Through the material drop forging process 210 of 200, the cutting part is forged, and the process is carried out in the bucket 212, the bearing material 10 is moved upward by the rotation of the rotor 211, the bucket ( When 212) reaches the top dead center, the material is poured down, and the bearing material 10 that is poured down is machined into a spherical shape having a uniform stiffness by forging the edge portion of the weakest cutting part by mutual collision and collision with the lower surface. It will be.
그리고, 상기 낙하단조공정(210)을 통하여 모서리가 구형으로 단조가공되는 과정에 있어 표면에 흠집이 발생된 베어링소재(10)는 표면연마공정(220)을 통하여 내부에 가공석(222)과 물이 채워져 회전되는 드럼(221)속에 넣고 일정시간동안 회동시켜서 가공하고, 상기 표면연마공정(220)을 통하여 표면의 흠집이 제거된 베어링소재(10)는 외경연각공정(230)을 통하여 양측에 두개의 연삭기(231)가 회동되는 사이를 통과시켜서 외경보다 두꺼운 단조가공으로 인한 돌출부가 제거되게 되는 것이다.In addition, in the process of forging a corner into a spherical shape through the drop forging process 210, the bearing material 10 having scratches on the surface of the bearing material 222 and water may be formed therein through the surface polishing process 220. Inserted into the rotating drum 221 is rotated for a predetermined time and processed, the surface of the bearing material 10 is removed through the surface polishing process 220, the outer diameter grinding process 230 on both sides through two Passing the grinding machine 231 is rotated to remove the protrusion due to forging thicker than the outer diameter.
상기한 바와 같이 절단부 가공공정(200)을 통하여 절단부위가 곡면 단조가공된 베어링소재(10)는 열처리공정(300)을 통하여 가공과정에 있어서 발생한 가공스트레스가 제거됨과 더불어 인성이 강화되게 되며, 상기 열처리공정(300)을 통하여 열처리가 완료된 베어링소재는 마무리 가공공정(400)을 통하여 직경의 오차가 수정되고 표면이 정밀하게 가공되는 것이다.As described above, the bearing material 10 for which the cut part is forged through the cutting part machining process 200 is removed from the processing stress generated during the machining process through the heat treatment step 300 and the toughness is enhanced. The bearing material is heat-treated through the heat treatment step 300 is a diameter error is corrected through the finishing process step 400 and the surface is precisely processed.
따라서, 본 발명은 베어링의 가공에 있어 낙하충격에 의한 단조가공에 의하여 절단부위가 반구형으로 가공되게 하므로서 완성된 베어링의 강성이 향상됨과 더불어 작업성을 향상되는 매우 유용한 것이다.Therefore, the present invention is very useful in improving the rigidity of the finished bearing and workability by allowing the cutting part to be processed into a hemispherical shape by forging by drop impact in the processing of the bearing.
도 1 은 본 발명에 따른 가공공정을 보인 공정도.1 is a process chart showing a machining process according to the present invention.
도 2 는 본 발명에 따른 가공공정에 있어 소재 낙하단조공정의 상세도.Figure 2 is a detailed view of the material drop forging process in the machining process according to the present invention.
<도면의 주요부분에 대한 보호의 설명><Description of protection of main parts of drawing>
10 : 베어링소재10: Bearing material
100 : 소재 절단공정100: material cutting process
200 : 절단부 가공공정200: cutting process
210 : 낙하단조공정210: drop forging process
211 : 회전차 212 : 버킷211: rotary car 212: bucket
220 : 표면연마공정220: surface polishing process
221 : 드럼 222 : 가공석221: drum 222: processed stone
230 : 외경연삭공정230: outer diameter grinding process
231 : 연삭기231: Grinding Machine
300 : 열처리공정300 heat treatment process
400 : 마무리 가공공정400: finishing process
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0057455A KR100514538B1 (en) | 2003-08-20 | 2003-08-20 | A roller-bearing manufacturing methood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0057455A KR100514538B1 (en) | 2003-08-20 | 2003-08-20 | A roller-bearing manufacturing methood |
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| Publication Number | Publication Date |
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| KR20050019592A KR20050019592A (en) | 2005-03-03 |
| KR100514538B1 true KR100514538B1 (en) | 2005-09-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102015207106A1 (en) * | 2015-04-20 | 2016-10-20 | Schaeffler Technologies AG & Co. KG | Method for producing rolling elements for rolling bearings |
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