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61. 发明专利

DE68912840T2 未知
公开(公告)号：DE68912840T2
公开(公告)日：1994-08-18
申请号：DE68912840
申请日：1989-07-11
申请人： ROCKWELL INT SUSPENS SYST CO
发明人： LIENERT GEROLD
IPC分类号： B21F3/10 , B21F35/02
摘要： A method and apparatus are disclosed for forming a barrel coil spring(10). The apparatus according to the invention has a rotatable head(24), and clamping device (48,50) to attach one end of the coil spring to the rotatable head, a forming die head(34) with at least one forming die(58) which may be inserted between adjacent coils of the spring near said one end such that a forming die bears against an inner surface of a coil, a first rotating device to rotate the head in a first direction about an axis substantially coincident with the longitudinal axis of the coil spring, and a second rotating device to rotate the forming die head in a second direction, opposite to that of the first direction, about an axis substantially coincident with the longitudinal axis of the coil spring. The method according to the invention has the steps of attaching an end of the coil spring to a rotatable head, inserting at least one forming die between adjacent coils so as to bear against an inner surface of a coil, rotating the rotatable head in a first direction about a first axis substantially coincident with the longitudinal axis of the coil spring, and rotating the at least one forming die in a second direction, opposite to that of the first direction, about an axis substantially coincident with the longitudinal axis of the coil spring.

62. 发明专利

BR9303570A 未知
公开(公告)号：BR9303570A
公开(公告)日：1994-06-21
申请号：BR9303570
申请日：1993-10-01
申请人： AMERICAN MICRO STEEL LTDA
发明人： GANCIAR WALTER JOSE
IPC分类号： A47L13/07 , B21F3/10 , B21F15/02

63. 发明专利

DE68912840D1 未知
公开(公告)号：DE68912840D1
公开(公告)日：1994-03-17
申请号：DE68912840
申请日：1989-07-11
申请人： ROCKWELL INT SUSPENS SYST CO
发明人： LIENERT GEROLD
IPC分类号： B21F3/10 , B21F35/02
摘要： A method and apparatus are disclosed for forming a barrel coil spring(10). The apparatus according to the invention has a rotatable head(24), and clamping device (48,50) to attach one end of the coil spring to the rotatable head, a forming die head(34) with at least one forming die(58) which may be inserted between adjacent coils of the spring near said one end such that a forming die bears against an inner surface of a coil, a first rotating device to rotate the head in a first direction about an axis substantially coincident with the longitudinal axis of the coil spring, and a second rotating device to rotate the forming die head in a second direction, opposite to that of the first direction, about an axis substantially coincident with the longitudinal axis of the coil spring. The method according to the invention has the steps of attaching an end of the coil spring to a rotatable head, inserting at least one forming die between adjacent coils so as to bear against an inner surface of a coil, rotating the rotatable head in a first direction about a first axis substantially coincident with the longitudinal axis of the coil spring, and rotating the at least one forming die in a second direction, opposite to that of the first direction, about an axis substantially coincident with the longitudinal axis of the coil spring.

64. 发明专利

DE3872856D1 未知
公开(公告)号：DE3872856D1
公开(公告)日：1992-08-20
申请号：DE3872856
申请日：1988-12-07
申请人： MORITA IRON WORKS
发明人： MORITA LTD
IPC分类号： F16F1/04 , B21F3/10 , B21F35/00
摘要： Disclosed are a method of and a device for making a double-coned coil spring (1), which comprises using a semi-finished spring (2) having formed on one end thereof a first conically wound portion (2a) with the rest of the wound portion (2b) being extended with the maximum diameter, and forming a second conically wound portion (2c) at the cylindrically wound portion (2b); wherein said cylindrically wound portion (2b) is clamped at the site from where formation of the second conically wound portion (2c) is to be started by means of a first clamping means (3), and also clamping the open end of said cylindrically wound portion (2b) by means of a second clamping means (18); and the second clamping means (18) is allowed to rotate in the direction of winding the semi-finished spring (2), while said second clamping means (18) is forced to be moved toward the center of the semi-finished spring (2).

65. 发明专利

NL183500B 未知
公开(公告)号：NL183500B
公开(公告)日：1988-06-16
申请号：NL8101309
申请日：1981-03-18
申请人： HOESCH ESTEL WERKE AG
IPC分类号： B21F3/10 , F16F1/08 , B21F35/00 , B21F35/02
摘要： An arrangement for producing double conical springs from heated rod-shaped material, in which one side of a conical-shaped spring is formed with a cylindrical end corresponding to the largest winding diameter. The end is then shaped to a conical form. After being transferred from a spring winding station to an end roll-in unit, the spring is clamped, and a shaping member is inserted radially into the spring, and moved against a stop. With the aid of a roll-in head, the cylindrical spring end is conically formed. After the shaping member is radially removed from the spring, the latter is released and transported to a hardening process.

66. 发明专利

AT376590B 未知
公开(公告)号：AT376590B
公开(公告)日：1984-12-10
申请号：AT115481
申请日：1981-03-12
申请人： HOESCH ESTEL WERKE AG
IPC分类号： B21F3/10 , F16F1/08
摘要： An arrangement for producing double conical springs from heated rod-shaped material, in which one side of a conical-shaped spring is formed with a cylindrical end corresponding to the largest winding diameter. The end is then shaped to a conical form. After being transferred from a spring winding station to an end roll-in unit, the spring is clamped, and a shaping member is inserted radially into the spring, and moved against a stop. With the aid of a roll-in head, the cylindrical spring end is conically formed. After the shaping member is radially removed from the spring, the latter is released and transported to a hardening process.

67. 发明专利

CA1155036A ARRANGEMENT FOR FABRICATING DOUBLE CONICAL SPRINGS OR THE LIKE 未知
公开(公告)号：CA1155036A
公开(公告)日：1983-10-11
申请号：CA377008
申请日：1981-05-06
申请人： HOESCH ESTEL WERKE AG
发明人： KIRCHHOFF ERNST , RAEHDER ALFRED , ADOLF GUENTER
IPC分类号： B21F3/10 , F16F1/08 , B21F35/00
摘要： An arrangement for producing double conical springs from heated rod-shaped material, in which one side of a conical-shaped spring is formed with a cylindrical end corresponding to the largest winding diameter. The end is then shaped to a conical form. After being transferred from a spring winding station to an end roll-in unit, the spring is clamped, and a shaping member is inserted radially into the spring, and moved against-a stop. With the aid of a roll-in head, the cylindrical spring end is conically formed. After the shaping member is radially removed from the spring, the latter is released and transported to a hardening process.

68. 发明专利

DE3201159A1 Spring winding machine 未知
公开(公告)号：DE3201159A1
公开(公告)日：1983-07-28
申请号：DE3201159
申请日：1982-01-15
申请人： HACK GMBH MASCHF
发明人： SPEIDEL HERBERT
IPC分类号： B21F3/02 , B21F3/10 , B21F3/06
摘要： The spring winding machine has two winding apparatuses with in each case one winding finger. Each winding finger is mounted on a respective slide which can be fed linearly towards a point of emergence of the wire at a wire feed. The feed motion of one slide of one winding apparatus is coupled to a swivelling movement of the other winding apparatus in such a way that both winding fingers can be moved towards the wire feed and away from it in a predetermined relationship. The two winding apparatuses are thereby coupled synchronously with one another, with the result that each change in the coil or spring diameter is carried out simultaneously and in a geometrically precise manner by both winding apparatuses. It is thereby possible to wind a very wide variety of spring shapes reliably and accurately with just two winding apparatuses.

69. 发明专利

ZA8102455B METHOD AND APPARATUS FOR MANUFACTURING DOUBLE CONICAL SPRINGS AND THE LIKE 未知
公开(公告)号：ZA8102455B
公开(公告)日：1982-04-28
申请号：ZA8102455
申请日：1981-04-13
申请人： HOESCH ESTEL WERKE AG
发明人： KIRCHHOFF E , RAEHDER A , ADOLF GUENTER , GUENTER ADOLF
IPC分类号： B21F3/10 , F16F1/08 , B21F
CPC分类号： F16F1/08 , B21F3/10

70. 发明专利

BR8104626A 未知
公开(公告)号：BR8104626A
公开(公告)日：1982-04-06
申请号：BR8104626
申请日：1981-07-17
申请人： NHK SPRING CO LTD
发明人： MASAHARU SHIBATA , TSUTOMU FURUYAMA
IPC分类号： B21F3/00 , B21F1/00 , B21F3/02 , B21F3/10

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