发明名称 |
INSTALACAO AUTOCENTRALIZADORA PARA ESMERILHAR OS PINOS DE METAL DURO DE BROCAS DE PERFURACAO |
摘要 |
An arrangement for grinding the hardmetal pins of drill bits, e.g. the tungsten carbide buttons (31) of button bits (1), comprises means (parallel arms pairs 9 and 10) for adjusting the position of a grinding pin (15) in realation to the drill bit (1) and also journalling means (4) operative to cause the grinding machine (3) to move relatively slowly in a circuit path around the button on the drill bit (1) to be ground and to cause the grinding pin (15) to rotate rapidly around its longitudinal axis. The drill bit is clamped securely in a stationary holder arrangement (2) which includes a tiltable table (35) which can be adjusted to and locked in selected angular positions. |
申请公布号 |
BR8904607(A) |
申请公布日期 |
1990.04.24 |
申请号 |
BR19898904607 |
申请日期 |
1989.09.13 |
申请人 |
CME BLASTING & MINING EQUIP |
发明人 |
MANQVIST KEIJO;SJOLANDER ROBERT |
分类号 |
B24B3/60;B24B3/33;B24B19/04;B24B27/00;B24B27/04;B24D99/00;E21B12/06;(IPC1-7):B24B3/33 |
主分类号 |
B24B3/60 |
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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