| 摘要 |
The invention relates to a linear feed drive system for working tools with an integrated tactile sensor system for initial positioning processes on the workpiece before the working process is started, and with integrated weight relief. The system comprises at least two parallel guided elements disposed directly next to each other and displaceable against one another in the feed direction. One element is directly connected with the drive of the system, and the other element is connected with the driven tool, so that the possible distance of displacement of the elements relative to one another is limited within a defined range by the action of a force such as the weight of the two linear elements, by the force of a spring, or by a counterweight, in a defined position in said path. The force acts on the linear element supporting the tool against the direction of feed, and the element is displaceable relative to the driven linear element over a limited distance of displacement. There are electric signaling devices for converting the distance of displacement or a defined position over the distance of displacement into electric signals. There is also an adjustable source of force such as a spring between the two linear elements and acting in the direction of the path of displacement, for compensating the force of the weight of the tool and of the linear element supporting the tool.
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