| 摘要 |
A safety mount for a tool on robotic apparatus, for protection of the tool should it encounter an obstruction to movement by the apparatus. The mount includes a hollow housing having a first end, a second end and a central axis passing through the ends. The housing is attachable at its first end to the robotic apparatus. Electrical switches are mounted in the housing radially outward of the axis, each switch having an operating member facing toward the first end of the housing and being biased toward the first end to a position establishing a first circuit condition and movable to a pressed-down position establishing a second circuit condition. A presser head is mounted in the housing and is biased for pressing down the switch-operating members. The presser head has a stem extending generally on the axis out of the second end of the housing for attachment of a tool holder thereto. The tool acts on encountering an obstruction either to deflect the stem at an angle resulting in angular deflection of the presser head to release at least one switch-operating member or to move the stem inwardly with respect to the housing with resultant axial movement of the presser head away from the switch-operating members to release all of them, thereby establishing the first circuit condition as a safety signal.
|
