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US 10,981,237 B2Granted
Deburring tool for deburring transverse recesses that branch from a main borehole
AssigneeHeule Werkzeug AG
InventorHarry Studer
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AssigneeHeule Werkzeug AG
InventorHarry Studer
Estimating the term…
A deburring tool (7) for deburring of edges of transverse recesses (3, 3a-i), which diverge from a main borehole (2), consisting of a shaft (8, 9) driven to turn about the tool axis (11), which is deployable and retractable in the forward feed direction into the main borehole, and on the lower end of which at least one knife window (26) is arranged, in which at least one spring-loaded knife (10, 10′, 10″, 10′″, 10″″) is arranged roughly perpendicular to the tool axis (11), so as to be shiftable, which on its front end has at least one cutting edge (10a, 10b) which encounters the edge of the transverse recess (3, 3a-i), and deburrs same, wherein the knife (10, 10′, 10″, 10′″, 10″″) consists of two cutting edges (10a, 10b) opposite in the rotational direction (12, 13), which act to cut equally for the right and left passes (12, 13), with one cutting edge (10a) being configured to cut for the rightward pass (12), both in forward motion (38a) and in rearward motion, and the other cutting edge (10b), being configured to cut for the leftward pass (13), both in forward motion (38a) and in rearward motion, and that the two cutters (10a, 10b) with their cutting edges are placed at a slant and with arch shape at an angle between 0° and 90°, but preferably between 5° and 45° to the tool axis (11) and thus to the longitudinal axis (2a) of the main borehole (2).
A deburring tool for deburring of edges of transverse recesses, which diverge from a main borehole, comprising a shaft driven to turn about the tool axis, which is deployable and retractable in a forward feed direction into the main borehole, and on the lower end of which at least one knife window is arranged, in which at least one spring-loaded knife is arranged roughly perpendicular to the tool axis, so as to be shiftable, which on its front end has two cutting edges (10a, 10b) which encounter the edge of the transverse recess (3, 3a-i), and deburrs same, wherein the two cutting edges are opposite in the rotational direction, which act to cut equally for the right and left passes, with one cutting edge being configured to cut for the rightward pass, both in forward motion and in rearward motion, and the other cutting edge being configured to cut for the leftward pass, both in forward motion nd in rearward motion, and that the two cutting edges are placed at a slant and with arch shape at an angle between 0° and 90° to the tool axis and thus to the longitudinal axis of the main borehole.
A method for operating a deburring tool to deburr the edges of transverse recesses, which diverge from a main borehole, the deburring tool comprising a shaft driven to turn about the tool axis, which is deployable and retractable in a forward feed direction into the borehole, and at the lower end of which at least one knife window is arranged, in which at least one knife is arranged so as to be shiftable, approximately perpendicular to the tool axis, that on its front end has two cutting edges, which encounter the edge of the transverse recess and deburrs same, the method comprising rotating the deburring tool about the tool axis such that the deburring of arbitrarily shaped recesses along the main borehole with longitudinal side passage of the main borehole occurs only in a rightward pass and/or only in a leftward pass, or that first in a leftward pass and then in a rightward pass, or vice versa, first in a rightward pass and thereafter following in a leftward pass deburring occurs, with the knife with the two cutting edges simultaneously deburring in a rightward pass and in a leftward pass.
Dependencies are inferred from the claim text.