发明名称 |
Bending device |
摘要 |
The bending device comprises a hydraulic motor for moving a feeding table, and a hydraulic circuit including first and second switching valves which can be selectively switched between a speed control channel for supplying operating oil from a discharge-rate variable hydraulic pump to the hydraulic motor by way of a servo valve and a pressure control channel for supplying high pressure operating oil from the hydraulic pump to the hydraulic motor. When the feeding table provided with a chuck mechanism gripping a longitudinal material is moved to a bending mechanism to bend the material, control of the speed and application of axial compressive force can be conducted by switching of the first and second switching valves.
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申请公布号 |
US2002174703(A1) |
申请公布日期 |
2002.11.28 |
申请号 |
US20020153194 |
申请日期 |
2002.05.21 |
申请人 |
YAMADA TAKAYUKI;YOGO TERUAKI |
发明人 |
YAMADA TAKAYUKI;YOGO TERUAKI |
分类号 |
F15B11/02;B21D7/00;B21D7/024;B21D7/025;B21D7/12;(IPC1-7):B21J9/18 |
主分类号 |
F15B11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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