Machining apparatus for workpiece and method therefor

A machining apparatus for machining an object, elongated in one direction, to be machined, comprising:

• a machining base with a machining surface to be rotationally driven, a machining head mounted frame disposed movably to said machining surface, and a machining head supported by said machining head mounted frame, wherein
• said machining head includes a jig for holding the object to be machined, an up-and-down moving portion moving up and down relative to the machining surface together with said jig, and a correcting mechanism supported by said up-and-down moving portion,
• said correcting mechanism includes a base fixed to said up-and-down moving portion, a plurality of levers provided at ends with pins, a shaft fixed to said base for rotatably supporting said levers, and a plurality of correcting drive means coupled to other ends of said levers for pivoting said levers with respect to said shaft to thereby pivot said pins,
• said jig includes a body portion fixed to said up-and-down moving portion, a holding portion elongated in one direction and fixed to said body portion for holding said object to be machined, and a plurality of load receiving portions arranged in parallel in said one direction on said holding portion, and
• said load receiving portions receive said pins and are driven in accordance with the pivotal movement of each pin whereby portions corresponding to said load receiving portion in said holding portion are deformed together with said object to be machined.

A machining apparatus for machining an object, elongated in one direction, to be machined, comprising:

• a machining base with a machining surface to be rotationally driven, a machining head mounted frame disposed movably to said machining surface, and a machining head supported by said machining head mounted frame, wherein
• said machining head includes a jig for holding the object to be machined, an up-and-down moving portion moving up and down relative to the machining surface together with said jig, and a correcting mechanism supported by said up-and-down moving portion,
• said correcting mechanism includes a base fixed to said up-and-down moving portion, a plurality of correcting drive means fixed at ends to said base, a shaft coupled coaxially with said correcting drive means, and pins projecting from said shaft,
• said jig includes a body portion fixed to said up-and-down moving portion, a holding portion elongated in one direction and fixed to said body portion for holding said object to be machined, and a plurality of load receiving portions arranged in parallel in said one direction on said holding portion, and
• said load receiving portions receive said pins and are driven in accordance with the movement of each pin whereby portions corresponding to said load receiving portion in said holding portion are deformed together with said object to be machined.

A machining apparatus for machining an object, elongated in one direction, to be machined, comprising:

• a machining base with a machining surface to be rotationally driven, a machining head mounted frame disposed movably to said machining surface, and a machining head supported by said machining head mounted frame, wherein
• said machining head includes a jig for holding the object to be machined, an up-and-down moving portion moving up and down relative to the machining surface together with said jig, and a correcting mechanism supported by said up-and-down moving portion,
• said correcting mechanism includes a base fixed to said up-and-down moving portion, a plurality of substantially frame-like members fixed to said base, a plurality of correcting drive means held on centerlines of said substantially frame-like members, and a plurality of shafts extending in parallel with a drive direction of said correcting drive means, coupled at ends with said substantially frame-like members and provided at other ends with pins,
• said jig includes a body portion fixed to said up-and-down moving portion, a holding portion elongated in one direction and fixed to said body portion for holding said object to be machined, and a plurality of load receiving portions arranged in parallel in said one direction on said holding portion, and
• said load receiving portions receive said pins and are driven in accordance with the pivotal movement of each pin whereby portions corresponding to said load receiving portion in said holding portion are deformed together with said object to be machined.

A machining apparatus for machining an object, elongated in one direction, to be machined, comprising:

• a machining base with a machining surface to be rotationally driven, a machining head mounted frame disposed movably to said machining surface, and a machining head supported by said machining head mounted frame, wherein
• said machining head includes a jig for holding the object to be machined, an up-and-down moving portion moving up and down relative to the machining surface together with said jig, and a correcting mechanism supported by said up-and-down moving portion,
• said correcting mechanism includes a plurality of shafts provided at ends with pins and having convex portions different from said pins, a pair of correcting drive members disposed on one line on both sides of said convex portions and clamping said convex portions, and a base fixed to said up-and-down moving portion with recess portions receiving said pair of correcting drive member and said convex portions, said pair of correcting drive members drive said convex portion in a straight line to drive said shafts and said pins in parallel with said straight line,
• said jig includes a body portion fixed to said up-and-down moving portion, a holding portion elongated in one direction and fixed to said body portion for holding said object to be machined, and a plurality of load receiving portions arranged in parallel in said one direction on said holding portion, and
• said load receiving portions receive said pins and are driven in accordance with the movement of each pin whereby portions corresponding to said load receiving portion in said holding portion are deformed together with said object to be machined.

A machining apparatus for machining an object, elongated in one direction, to be machined, comprising:

• a machining base with a machining surface to be rotationally driven, a machining head mounted frame disposed movably to said machining surface, and a machining head supported by said machining head mounted frame, wherein
• said machining head includes a jig for holding the object to be machined, an up-and-down moving portion moving up and down relative to the machining surface together with said jig, and a correcting mechanism supported by said up-and-down moving portion,
• said correcting mechanism includes a shaft, a plurality of levers composed of linear portions provided at ends with pins and supported rotatably by said shaft at portions different from said pins and driven portions coupled at end portions with said linear portions having convex portions, a pair of correcting drive members disposed in a linear manner on both sides of said convex portions while clamping the convex portions, and a base having recess portions for receiving said pair of correcting drive members and said convex portions and fixed to said up-and-down moving portion, said pair of correcting drive members drive in the linear manner to thereby drive the convex portion clamped thereby, whereby said levers and said pins are pivoted about said shaft,
• said jig includes a body portion fixed to said up-and-down moving portion, a holding portion elongated in one direction and fixed to said body portion for holding said object to be machined, and a plurality of load receiving portions arranged in parallel in said one direction on said holding portion, and
• said load receiving portions receive said pins and are driven in accordance with the pivotal movement of each pin whereby portions corresponding to said load receiving portion in said holding portion are deformed together with said object to be machined.