Gear generating machine for making and testing involute gears

Claim 2

In a machine for operating on involute spur gears and helical gears wherein a workpiece performs a rolling-off motion relative to a tool, which rolling-off motion is composed of a component of a purely rotatory motion and a component of a purely rectilinear movement, said machine comprising a machine stand, a machine table mounted on said stand for rectilinear movement relative to a tool carrier, drive means for moving said machine table rectilinearly, and a workpiece support rotatable on said machine table about an axis perpendicular to the direction of such rectilinear movement and being rectilinearly movable therewith, means for producing said purely rotatory motion comprising: a. a guide way, means mounting said guide way on said machine stand for angular adjustment of its direction relative to the direction of the rectilinear table movement, b. mechanical means slidably mounted on said machine table, said mechanical means slidably engaging said guide way so as to be displaced laterally thereby when said table is moved along its rectilinear path, and c. means mechanically interconnecting said mechanical means and said workpiece support for deriving from said lateral movement of said mechanical means said rotatory motion of said workpiece support.

Claim 3

A machine as claimed in claim 1, wherein said mechanical means on said machine table is mounted thereon so as to be slidable at a right angle to the direction of said table movement.

Claim 4

A machine as claimed in claim 1, wherein said mechanical means on said machine table comprises a. a first element slidable at a right angle to the direction of the table movement and engaging directly said adjustable guide way, said first element being provided with a groove extending in a direction inclined to the direction of movement of said first element, and b. a second element displaceable on said machine table in the direction of the table movement and slidably engaging said groove in said first element so that said second element is displaced in the direction of said table movement when said first element is displaced in a direction perpendicular thereto.

Claim 5

A machine as claimed in claim 1, wherein said workpiece support is a cylinder and said means mechanically interconnecting said mechanical means and said cylinder comprises two straps, said straps having one end of each fixedly connected to opposite peripheral portions of said cylinder and the other ends connected, in a crosswise manner, to said mechanical means.

Claim 6

A machine as claimed in claim 1, said tool comprising a tracer mounted on said machine stand for tracing the involute shape of the tooth flanks of the manufactured gear.

Claim 7

In a machine for operating on involute spur gears and helical gears wherein a workpiece performs a rolling-off motion relative to a tool, which rolling-off motion is composed of a component of a purely rotatory motion and a component of a purely rotatory motion and a component of a purely rectilinear motion, said machine comprising: a. a machine stand b. a machine table element mounted on said stand for rectilinear movement in a first direction relative to a tool carrier. c. a workpiece support rotatable on said table element about an axis fixed with respect to the table element, said axis being perpendicular to the first direction and rectilinearly movable with said table element d. a guide way, means mounting said guide way on said machine stand for angular adjustment of its direction relative to said first direction e. a mechanical element mounted slidably on the machine table for movement with respect thereto in a second direction transverse to the first direction f. means mechanically interconnecting said mechanical element and said workpiece support for deriving from said lateral movement of said mechanical element said rotatory movement of said workpiece support g. means rigid with said mechanical element slidably engaging in said guide way and h. means to move one of said elements in one of said first and second directions, whereby said guide way produces movement of the other of said elements in the other of said first and second directions.

Claim 8

In a machine for operating on involute spur gears and helical gears wherein a workpiece performs a rolling-off motion relative to a tool, which rolling-off motion is composed of a component of a purely rotatory motion and a component of a purely rotatory motion and a component of a purely rectilinear motion, said machine comprising: a. a machine stand b. a machine table element mounted on said stand for rectilinear movement in a first direction relative to a tool carrier. c. a workpiece support rotatable on said table element about an axis fixed with respect to the table element, said axis being perpendicular to the first direction and rectilinearly movable with said table element d. a guide way, means mounting said guide way on said machine stand for angular adjustment of its direction relative to said first direction e. a mechanical element mounted slidably on the machine table for movement with respect thereto in a second direction transverse to the first direction f. means mechanically interconnecting said mechanical element and said workpiece support for deriving from said lateral movement of said mechanical element said rotatory movement of said workpiece support g. means rigid with said mechanical element slidably engaging in said guide way and h. means to move one of said elements in one of said first and second directions, whereby said guide way produces movement of the other of said elements in the other of said first and second directions.

Claim 9

In a machine as claimed in claim 6, said mechanical element on said machine table element being mounted thereon so as to be slidable at a right angle to the direction of said table movement.

Claim 10

In a machine as claimed in claim 6, said tool comprising a tracer mounted on said machine stand for tracing the involute shape of the tooth flanks of the manufactured gear.

Claim 11

In a machine as claimed in claim 6, said workpiece support being a cylinder and said means mechanically interconnecting said mechanical element and said cylinder comprising two straps, said straps having one end of each fixedly connected to opposite peripheral portions of said cylinder and the other ends connected, in a crosswise manner, to said mechanical element.