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US 4,072,083 AGranted
Milling head
OwnerJiri Cesalinventor
Life of this patent
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OwnerJiri Cesalinventor
Estimating the term…
A milling head having a shaft for attachment to a machine tool, and at least one cutting insert or bit, characterized in that the cutting insert is supported in a tiltable or swivelable holder having a swivel axis extending perpendicularly to the axis of rotation of the milling head. Stopping means is situated between the milling head and the holder, against which the holder rests in its working position. A cam plate is held in a stationary position such that the cam plate cooperates with the holder to tilt or swivel the latter along a portion of its arcuate movement thereby lifting the cutting insert off the surface to be machined. The stopping means may include travel limit elements that comprise a bore in the holder and a protruding pin which engages with the bore. Biasing means is provided in the form of a spring arranged so that it tends to bias the holder into its working position.
A milling head comprising a shaft means for attachment to a machine tool, said shaft means defining a rotational axis, a tiltable holder means adapted to retain cutting means and defining a tilting axis extending perpendicularly to said rotational axis of said shaft means and mounting means operatively mounting said holder means relative to said shaft means so as to swivel said holder means along a portion of each revolution of the milling head means whereby the cutting means is lifted off from the surface to be machined, and in another portion of each revolution of the milling head means is engaging the surface to be machined, said mounting means further comprising camming means operatively associated with said holder means and with said mounting means, said camming means comprising a cam plate, and a cam follower means mounted relative to said cam plate for imparting said swivel motion of said holder means relative to said mounting means.
Dependencies are inferred from the claim text.