Reverse face angle gear cutter and coolant delivery assembly
A coolant delivery assembly configured for use with a gear cutter tool that cuts gear teeth into a workpiece to form a gear includes a retaining cooling nut, a tool holder and a coupling member. The retaining cooling nut has a nut body that defines a plurality of coolant flow passages therein. The tool holder supports the gear cutter tool. The coupling member couples the retaining cooling nut to the mount. The retaining cooling nut is configured to receive coolant and deliver the coolant through the plurality of coolant flow passages and direct the coolant toward the gear cutter tool.
1 . A coolant delivery assembly configured for use with a gear cutter tool that cuts gear teeth into a workpiece to form a gear, the coolant deliver assembly comprising:
a retaining cooling nut having a nut body that defines a plurality of coolant flow passages therein, the nut body comprising an engaging end and an opposite end that is opposite the engaging end, the engaging end being configured to engage the gear cutter tool;
a tool holder that supports the gear cutter tool; and
a coupling member that couples the retaining cooling nut to the tool holder;
wherein the retaining cooling nut is configured to receive coolant and deliver the coolant through the plurality of coolant flow passages and direct the coolant toward the gear cutter tool;
wherein each flow passage of the plurality of flow passages defines a coolant inlet and a coolant outlet, wherein each coolant inlet is defined at the engaging end; and
wherein the plurality of coolant flow passages each define a linear portion and an arcuate portion, wherein the linear portions communicate coolant from the engaging end toward the opposite end.
2 . The coolant delivery assembly of claim 1 wherein the arcuate portions route the coolant from the linear portions in a direction toward the cutting tool away from the opposite end.
3 . The coolant delivery assembly of claim 1 , further comprising: a plenum disposed between the tool holder and the engaging end of the retaining cooling nut, wherein the plenum is configured to provide circumferential coolant communication between the tool holder and the engaging end of the retaining cooling nut.
4 . The coolant delivery assembly of claim 1 wherein the retaining cooling nut secures the gear cutter tool to the tool holder.
5 . The coolant delivery assembly of claim 1 , further comprising: a coupling member comprising a threaded shaft that threadably mates with a threaded bore defined in the retaining cooling nut.
6 . The coolant delivery assembly of claim 1 , further comprising: the gear cutter tool, wherein the gear cutter tool has a plurality of cutting teeth, each cutting tooth of the plurality of cutting teeth having a tooth face that defines a tooth face angle relative to the workpiece during cutting into the workpiece wherein the tooth face angle is non-parallel relative to the workpiece.
7 . The gear cutter tool of claim 6 wherein the tooth face angle is sloped to the left relative to a rotational axis of the gear cutter tool.
8 . A gear cutter tool for cutting internal gear teeth into a workpiece to form a gear, the gear cutter tool comprising:
a gear cutter tool having a plurality of cutting teeth, each cutting tooth of the plurality of cutting teeth having a tooth face that defines a tooth face angle relative to the workpiece during cutting into the workpiece wherein the tooth face angle is non-parallel relative to the workpiece;
wherein the tooth face angle is sloped to the left relative to a rotational axis of the gear cutter tool, as viewed from a side direction perpendicular to the rotational axis.