Process and device for producing turned parts from rods or bars
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0180110
(1988-03-17)
|
우선권정보 |
CH-0002913 (1986-07-21) |
국제출원번호 |
PCT/CH87/00089
(1987-07-17)
|
§371/§102 date |
19880317
(19880317)
|
국제공개번호 |
WO-8800513
(1988-01-28)
|
발명자
/ 주소 |
- Waelti Werner (Selzach CHX)
|
출원인 / 주소 |
- Tschudin Werkzeugmaschinenfabrik (Grenchen CHX 03)
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
0 |
초록
▼
In order to fabricate turned parts (18) out of a steel rod or bar (13) solely by grinding, the latter is chucked in oppositely disposed collets (14, 16) and is ground by two profiled grinding discs (20, 20′) which act on it either sequentially or simultaneously. The two profiled grinding discs are a
In order to fabricate turned parts (18) out of a steel rod or bar (13) solely by grinding, the latter is chucked in oppositely disposed collets (14, 16) and is ground by two profiled grinding discs (20, 20′) which act on it either sequentially or simultaneously. The two profiled grinding discs are advanced to (and plunged into) the rod or bar (13) (for plunge-cut grinding) at an acute angle of attitude thereto, and said discs rotate on respective axes (D, D′) which are inclined with respect to the axis (B) passing through the collects. In this way, surfaces (1′, 5, 6, 8, 10) which are perpendicular to the longitudinal axis (A) of the rod or bar and which may even face in opposite directions can be produced without having to rechuck the turned part (18). The usual types of profiled turned part segments (1, 2, 3, 4, 7, 9) may also be produced at the same time.
대표청구항
▼
A method of manufacturing profiled turned parts which are symmetric with respect to their longitudinal axis (A), with the starting stock being rods or bars, whereby a rod or bar (13) from which the turned parts (18) are to be fabricated is advanced on a collet axis (B) joining first and second colle
A method of manufacturing profiled turned parts which are symmetric with respect to their longitudinal axis (A), with the starting stock being rods or bars, whereby a rod or bar (13) from which the turned parts (18) are to be fabricated is advanced on a collet axis (B) joining first and second collets, said advancing proceeds through said first collet (14) in a headstock (15) of a grinding machine comprised of at least the said headstock (15) and a synchronous tailstock (17), with said advancing continuing into said second collet (16) disposed in the synchronous tailstock (17), and said rod or bar is then ground by a profiled grinding disc (20) which can be advanced transversely with respect to said rod or bar; characterized in that the profiled grinding disc (20) is rotated around an axis (D) which is inclined with respect to the collet axis (B), and is advanced against the rod or bar (13) at an acute angle, such that faces (1′, 5, 6) which are perpendicular to the longitudinal axis (A) of the rod or bar can be produced by plunging the said disc into the rod or bar (13) in a plunge-cut grinding operation; and in that a second profiled grinding disc (20′), also having a rotational axis (D′) which is inclined with respect to the collet axis (B), is advanced against the rod or bar at an acute angle whereby it is possible to produce opposite transverse faces (8, 10) on the rod or bar (13) which faces are perpendicular to the axis (A) of the rod or bar.
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Junker, Erwin, Centreless cylindrical grinding machine for grinding workpieces in rod form and method for the centreless cylindrical grinding of workpieces in rod form.
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Harada Katsuhiko (Tokyo JPX) Araki Michio (Hatano JPX), Method of processing a workpiece.
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Hirade, Jun; Komatsu, Shuichi, Shaft member for fluid dynamic bearing device and manufacturing method for shaft member.
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Colletti, Andrew Joseph; Badding, Bruce John; Williams, Bryan Edward, Surface treatment of turbomachinery.
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