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US 9,573,233 B2Granted
Device for keyway broaching
AssigneeWto Werkzeug-Einrichtungen GmbH
InventorsTobias Fautz, Thomas Kreutzer, Karlheinz Jansen
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AssigneeWto Werkzeug-Einrichtungen GmbH
InventorsTobias Fautz, Thomas Kreutzer, Karlheinz Jansen
Estimating the term…
A device for keyway broaching is provided with a housing, a drive shaft, a broaching carriage received and supported in the housing, a tool support connected to the broaching carriage, and a crank drive that couples the drive shaft and the broaching carriage with each other. The broaching carriage, when driven by the drive shaft, performs an oscillating movement comprising a cutting movement and a return stroke. A sleeve is arranged between the housing and the broaching carriage. A first seal is provided between the housing and the sleeve and/or between the sleeve and the broaching carriage. The tool support is connected to the broaching carriage with a rocking lever interposed between the tool support and the broaching carriage. The drive shaft has a control section that controls a relative movement between the rocking lever and the broaching carriage.
A device for keyway broaching, comprising:
The device according to 13, wherein the rocking lever comprises a first end provided with a slotted hole, wherein the first end is facing the push and pull rod, wherein the slotted hole has a longitudinal axis that is positioned relative to a direction of the oscillating movement of the rocking lever at an angle that is greater than 0° and wherein the push and pull rod comprises a bolt that engages the slotted hole.
The device according to 13, wherein the rocking lever comprises a first end provided with a slotted hole, wherein the first end is facing the push and pull rod, wherein the slotted hole has a longitudinal axis that is positioned relative to a direction of the oscillating movement of the rocking lever at an angle that is greater than 0° and wherein the broaching carriage comprises a bolt that engages the slotted hole.
A device for keyway broaching, comprising:
The device according to 38, wherein the rocking lever comprises a first end provided with a slotted hole, wherein the first end is facing the push and pull rod, wherein the slotted hole has a longitudinal axis that is positioned relative to a direction of the oscillating movement of the rocking lever at an angle that is greater than 0° and wherein the push and pull rod comprises a bolt that engages the slotted hole.
The device according to 38, wherein the rocking lever comprises a first end provided with a slotted hole, wherein the first end is facing the push and pull rod, wherein the slotted hole has a longitudinal axis that is positioned relative to a direction of the oscillating movement of the rocking lever at an angle that is greater than 0° and wherein the broaching carriage comprises a bolt that engages the slotted hole.
Dependencies are inferred from the claim text.