KR101677373B1 - Manufacturing method of member for outer and inner race for taper bearing - Google Patents
Manufacturing method of member for outer and inner race for taper bearing Download PDFInfo
- Publication number
- KR101677373B1 KR101677373B1 KR1020150084842A KR20150084842A KR101677373B1 KR 101677373 B1 KR101677373 B1 KR 101677373B1 KR 1020150084842 A KR1020150084842 A KR 1020150084842A KR 20150084842 A KR20150084842 A KR 20150084842A KR 101677373 B1 KR101677373 B1 KR 101677373B1
- Authority
- KR
- South Korea
- Prior art keywords
- outer ring
- cutting
- ring member
- diameter
- inner diameter
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
-
- 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
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/02—Shearing machines or shearing devices cutting by blades which move parallel to themselves having both upper and lower moving blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/40—Shaping by deformation without removing material
- F16C2220/46—Shaping by deformation without removing material by forging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/80—Shaping by separating parts, e.g. by severing, cracking
- F16C2220/82—Shaping by separating parts, e.g. by severing, cracking by cutting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/80—Shaping by separating parts, e.g. by severing, cracking
- F16C2220/84—Shaping by separating parts, e.g. by severing, cracking by perforating; by punching; by stamping-out
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
- Forging (AREA)
Abstract
The present invention relates to an outer ring for a tapered bearing and a method for processing a member for an inner ring, wherein the outer ring formed by a bearing material and formed by press molding is an outer ring for a tapered bearing, To an inner ring member processing method.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer ring for a tapered bearing and a method of processing a member for an inner ring, and more particularly, to an outer ring for a tapered bearing and a method for processing the inner ring member.
As shown in Figs. 1 and 2, the conventional outer ring and inner ring member processing methods for tapered bearings include an upsetting step, a forming step, a cutting tare, a sizing step, and a cutting step.
In the upsetting step, the bar-
In the molding step, the
The
The
A
In the cutting step, the
In Fig. 1, reference numeral 31-5 denotes a first cutting portion, and 33-5 denotes a second cutting portion. The first cutting portion 31-5 is sheared by the shearing process and the removing
In the tapered roller bearing manufacturing process in which the
Since the inner diameter of the outer ring front member 33 'is larger than the inner diameter of the outer ring member 33' 'to be machined, the outer diameter of the outer ring front member 33' is made larger than the outer diameter of the outer ring member 33 ' So that the outer diameter and the inner diameter of the member 33 'are reduced simultaneously. Since the height is increased by the sizing process, the height of the entire outer ring member 33 'in the molding process is smaller than the height of the
As shown in FIG. 2, in the sizing step, the entire outer ring member 33 'passes through the
The sizing die (3) is provided with a hollow body which is opened to both sides in the up and down direction. The upper portion of the inner surface of the
The outer race member 33 '' is formed by passing the
In the cutting step, the inner ring member 31 'and the outer ring member 33' are cut and then subjected to a heat treatment-grinding process to form inner and outer rings, respectively. Generally, the outer race member 33 '' and the inner race member 31 'are formed to have a working margin in the range of 1 to 2.5 mm. The inner diameters of the inner race member 31 'and the outer race member 33' 'are formed to be smaller by 1 to 2.5 mm than the inner diameters of the inner and outer rings after machining. The outer diameters of the inner and outer ring members 31 'and 33' 'are formed to be larger than the outer diameters of the inner and outer rings after machining by a range of 1 to 2.5 mm. The height of the inner and outer ring members 31 'and 33' 'is formed to be larger by 1 to 2.5 mm than the height of the inner and outer rings after machining.
Conventionally, in the outer ring and inner ring member processing methods for the tapered bearing, the outer ring front member 33 'is formed as the outer race member 33' 'through the sizing step. The diameter of the outer and inner diameters of the
SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the problems described above, and it is an object of the present invention to provide a tapered bearing outer ring and an inner ring, which are simple in machining of the outer ring member and do not cut off the metal flow formed during the pressing process, And an object of the present invention is to provide a member processing method.
The outer ring and inner ring member processing method of the present invention comprises an upsetting step, a shaping step, a cutting step, and an entire outer ring member pressing step;
In the upsetting step, a bar-shaped cutting member having a circular cross section is pressed upward and downward to form an upsetting member;
Wherein in the forming step, the upsetting member is pressed to form a upwardly open bearing material; Wherein the bearing material comprises an inner ring part and an outer ring part; Wherein the inner ring portion is formed by a hollow body having a circular cross section and a removal portion at a lower portion and having an upwardly opened hollow portion, a first inclined portion formed to have an outer diameter smaller than that of the inner diameter portion, Is formed in a cylindrical shape; Wherein the outer ring portion is formed in a hollow body having a circular cross section and extending radially outwardly from the upper portion of the upper portion of the inner ring portion and extending upwardly and having an inner diameter increasing in an upward direction on an inner diameter surface thereof, A first transverse surface extending from an upper end of the inner diameter portion of the inner ring portion to a second inclined portion in a radial direction and extending radially from an outer diameter portion of the outer ring portion to a first inclined portion, ;
In the cutting step, the inner ring part and the outer ring part are separated and the removal part of the inner ring part is separated to form the inner ring member and the outer ring front member open in both directions; Wherein the outer ring front member is larger than an inner diameter of the outer ring member and larger than a height of the outer ring member;
Wherein the outer ring front member is pressurized in an up-and-down direction to reduce the inner diameter and the height of the outer ring front member, and the outer ring member is formed of an outer ring member in the pressing process of the outer ring front member.
In the cutting step, the inner ring part and the outer ring part are separated from the second cutting part and are formed of an inner ring member and a whole outer ring member in the cutting step; Wherein the first width and the second width are spaced apart in the up-and-down direction and partially overlap in the radial direction; The second cutting portion is formed at an overlapped position of the first widthwise surface and the second widthwise surface and the cutting surface of the second cutting portion is an inner diameter surface of the outer ring front member and an outer diameter surface of the inner ring member.
The outer ring front member has a third wide surface extending radially outward from the upper end of the second angled portion to the outer diameter portion and a first wide surface portion formed between the outer and inner surfaces of the outer ring front member as a part of the first wide surface ;
The outer diameter portion is supported in the step of pressing the entire outer ring member, and the third width side and the first width portion are pressed up and down.
In the above-described step of pressing the entire outer ring member, the outer ring front member is maintained in its outer diameter, the height of the outer ring front member is reduced, and the inner diameter of the outer ring member is reduced to form the outer ring member; And the outer ring member is as large as the machining allowance.
In the above, the inner ring member is cut and formed as an inner ring; And the outer ring front member is vertically compressed to be formed of an outer ring member, and after the compression, the outer ring member is formed by cutting the outer ring member.
The diameter of the outer diameter portion of the outer ring portion is larger than the outer diameter of the outer ring by a machining allowance.
In the above-described step of pressing the entire outer ring member, the first widthwise portion and the third widthwise surface of the outer ring front member are pressed so that the second inclined portion is expanded radially inwardly; And the second inclined portion to be inflated is pressed outward by the projecting portion of the punch to form the outer race member.
In the method for machining an outer ring and a member for an inner ring according to the present invention, the outer ring front member is pressurized in the upper and lower directions and is formed without changing the diameter of the outer diameter of the outer ring front member so that the metal flow shape of the cut outer ring is not disconnected, The life of the tapered bearing is increased and the pressing process of the entire outer ring member is formed by a single compression process.
1 is a cross-sectional view showing a conventional tapered bearing outer ring and inner ring member processing method,
2 is a cross-sectional view showing a sizing step of a conventional method for processing outer ring and inner ring members for a tapered bearing,
Fig. 3 is a view showing a method of working an outer ring and a member for an inner ring for a tapered bearing according to the present invention,
4 is a cross-sectional view showing a step of pressurizing the entire outer ring member of the outer ring and inner ring member working method for a tapered bearing of the present invention,
5 is a flow chart of the method for machining outer ring and inner ring members for tapered bearings of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method for processing an outer ring and a member for an inner ring according to the present invention will be described in detail with reference to the accompanying drawings.
4 is a cross-sectional view showing a step of pressing all the outer ring members of the tapered bearing outer ring and inner ring member processing method of the present invention, and FIG. 5 is a flow chart of the method for machining outer ring and inner ring members for tapered bearings of the present invention.
In Fig. 4, the horizontal direction is defined as "radial direction " and the vertical direction is defined as" vertical direction ".
5, the method for machining outer ring and inner ring members for a tapered bearing according to the present invention includes an upsetting step ST-100, a forming step ST-200, a cutting step ST-300, An outer ring full member pressing step ST-400, and a cutting step ST-500.
In the upsetting step ST-100, the bar-
In the forming step ST-200, the upsetting
The
The
A first
And a
The height H22 of the
The
An
A
The
The first
In the cutting step (ST-300), shearing is performed at the
And the
The entire outer ring member 330 'is composed of the third
The inside diameter of the entire outer ring member 330 'is made larger than the inner diameter of the
In the step of pressing the entire outer ring member ST-400, the outer ring member 330 'is pressed upward and downward to form the outer ring member 330'.
4, the entire outer ring member 330 'is positioned in the groove formed in the die 7 and is pushed by the
The
The lower portion of the protrusion of the
The outer race member 330 'formed through the sizing process repeated three times or more requires a long time and effort, and the height of the outer race member 330', which is elongated through the sizing process, The outer ring member 330 '' formed through the step of pressing the entire outer ring member ST-400 according to the present invention has a height of the
In the cutting step ST-500, the inner ring member 310 'and the outer ring member 330' are cut. The inner ring member 310 'and the outer ring member 330' are cut and then subjected to a heat treatment-grinding process to form an inner ring and an outer ring.
The
Although the method for machining outer ring and inner ring members for tapered bearing according to the present invention has been described with reference to the embodiments shown in the drawings, it is merely an example, and various modifications and equivalent other embodiments can be made by those skilled in the art I will understand that. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.
100: cutting member 200: upsetting member
300: Bearing material 310: Inner ring part
311: inner diameter portion 313: first inclined portion
315: first cutting portion 317: second width
319: extension part 330: outer ring part
331: outer diameter portion 333: second inclined portion
335: second cutting portion 337: first width
339: Third Warming Surface 350: Removal
310 ': inner wheel member 330': outer ring front member
330 ": outer ring member
Claims (7)
In the upsetting step (ST-100), a bar-shaped cutting member 100 having a circular cross section is pressed upward and downward to form the upsetting member 200;
In the forming step ST-200, the upsetting member 200 is pressed to form the upwardly-opening bearing material 300; The bearing material 300 comprises an inner ring part 310 and an outer ring part 330; The inner ring part 310 is formed as a hollow body having a circular cross section and a lower part provided with a removing part 350 and having an upward opening and has an inner diameter part 311 having a circular section, The first inclined portion 313 is formed, and the inner diameter portion 311 is formed into a cylindrical shape; The outer ring part 330 is formed as a hollow body having a circular cross section and extending radially outward from the upper part of the upper part of the inner ring part 310 and extending upwardly and a second inclined part 333 formed so as to increase in inner diameter as it goes upward, ; And a second widthwise surface 317 extending from the upper end of the inner diameter portion 311 of the inner ring portion 310 to the second inclined portion 333 in the radial direction. (331) extending to the first inclined portion (313) in the direction of the arrow, and the outer diameter portion (331) is provided in a cylindrical shape;
The first wide surface 337 and the second wide surface 317 are vertically spaced apart and partially overlap each other in the radial direction and the second wide surface 317 and the second wide surface 317 are overlapped. A cutting portion 335 is formed;
In the cutting step ST-300, the inner wheel member 310 'separated from the second cutting portion 335 and separated from the removal portion 350 of the inner ring portion 310 and opened in both directions, 330 ') are formed; The entire outer ring member 330 'is larger than the inner diameter of the outer ring member 330''and is formed to be larger than the height of the outer ring member 330'';
The entire outer ring member 330 'is pressed in the vertical direction to decrease the inner diameter and the height of the cutting surface of the outer diameter portion 331 and the second cutting portion 335 And the outer ring member 330 '' as the outer ring member 330 '' is reduced.
, The outer ring portion 331 is supported and the third width surface 339 and the first width portion 337 'are pressed up and down in the step of pressing the entire outer ring member ST-400. Method of processing member for inner ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150084842A KR101677373B1 (en) | 2015-06-16 | 2015-06-16 | Manufacturing method of member for outer and inner race for taper bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150084842A KR101677373B1 (en) | 2015-06-16 | 2015-06-16 | Manufacturing method of member for outer and inner race for taper bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
KR101677373B1 true KR101677373B1 (en) | 2016-11-17 |
Family
ID=57542135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150084842A KR101677373B1 (en) | 2015-06-16 | 2015-06-16 | Manufacturing method of member for outer and inner race for taper bearing |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101677373B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56113827A (en) * | 1980-02-14 | 1981-09-08 | Koyo Seiko Co Ltd | Manufacture of inner and outer ring of conical roller bearing |
JPS5852732B2 (en) * | 1976-02-09 | 1983-11-25 | エヌ・テ−・エヌ東洋ベアリング株式会社 | Method for simultaneously manufacturing materials for inner and outer rings of conical roller bearings with model numbers that overlap in size |
JP2004141964A (en) * | 2002-10-25 | 2004-05-20 | Sakamura Hot Art Co Ltd | Apparatus for manufacturing inner and outer ring in hot former |
KR100649929B1 (en) | 2006-01-17 | 2006-11-28 | 주식회사 일진글로벌 | Inner race structure of taper roller bearing |
-
2015
- 2015-06-16 KR KR1020150084842A patent/KR101677373B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5852732B2 (en) * | 1976-02-09 | 1983-11-25 | エヌ・テ−・エヌ東洋ベアリング株式会社 | Method for simultaneously manufacturing materials for inner and outer rings of conical roller bearings with model numbers that overlap in size |
JPS56113827A (en) * | 1980-02-14 | 1981-09-08 | Koyo Seiko Co Ltd | Manufacture of inner and outer ring of conical roller bearing |
JP2004141964A (en) * | 2002-10-25 | 2004-05-20 | Sakamura Hot Art Co Ltd | Apparatus for manufacturing inner and outer ring in hot former |
KR100649929B1 (en) | 2006-01-17 | 2006-11-28 | 주식회사 일진글로벌 | Inner race structure of taper roller bearing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9056347B2 (en) | Press-die and press working method | |
CN103008451B (en) | A kind of automobile support arm module processing technology | |
US10092940B2 (en) | Method for forming a pressed component, method for manufacturing a pressed component, and die apparatus for forming a pressed component | |
CN103949539B (en) | Clutch gland window stamping process | |
JP4117896B2 (en) | Manufacturing method of ring forging material | |
CN204700125U (en) | A kind of sprocket wheel rushes tooth mould | |
CN103949563A (en) | Sedan tubular V-shaped torsion beam stamping process | |
CN107206453A (en) | The method for manufacturing snap ring | |
KR101677373B1 (en) | Manufacturing method of member for outer and inner race for taper bearing | |
CN106001239A (en) | Tooth punching die | |
US9120143B2 (en) | Cut-off end surface improvement | |
CN102259129A (en) | Flanging process for full-circle main bearing and special die thereof | |
KR20150051864A (en) | Trough-form fine blanking device | |
CN208743541U (en) | It is a kind of can automatic material returning stamping die | |
CN216543737U (en) | Sealing washer blank suppression frock | |
CN106040849A (en) | Compound forming die for machining circlips of automobile shock absorbers | |
CN103357757A (en) | Trimming and punching die for processing quarter window reinforcing plate on automobile | |
JP2017109269A (en) | Pipe processing device | |
JP2014083556A (en) | Blanking metal-mold and scrap splitting method | |
CN112692923A (en) | Sealing ring blank pressing tool and sealing ring pressing method | |
CN106111781A (en) | Channel tie manufactures one-time-shaped mould | |
CN204799862U (en) | Wheel body compound mould that punches a hole of cutting edge | |
CN205253832U (en) | Automatic blanking hardware mould | |
KR101674764B1 (en) | Apparatus and Method for press forming | |
CN105396952A (en) | Tooth profile machining die and process |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20191111 Year of fee payment: 4 |