发明名称
摘要 An indexing, or positioning, device for a table guided for movement on a base. The positioning device comprises a pair of indexing discs connected via a totalizing transmission with the table to be positioned. Each indexing disc is driven through a differential transmission from a pair of motors, each of which has a brake to lock the motor when it is deenergized. Presettable counters control the motors and a pulse generating device associated with each disc feeds countdown pulses to the counters to stop the disc when a position thereof corresponding to the preset value in the counter is reached. Lost motion in the drive from the positioning device to the table is compensated for by a tensioning drive connected to the table and biasing the table in feed direction during indexing thereof and in the opposite direction at the end of a feed movement thereof.
申请公布号 DE2035302(B2) 申请公布日期 1972.10.05
申请号 DE19702035302 申请日期 1970.07.16
申请人 发明人
分类号 B23F23/08;B23F23/10;B23Q16/02;B23Q23/00;(IPC1-7):23Q17/02 主分类号 B23F23/08
代理机构 代理人
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