Apparatus for determining optimum machining conditions

Claim 1

A TESTING MACHINE FOR DETERMINING EMPIRICALLY OPTIMUM TOOL DESIGN SPECIFICATIONS AND OPTIMUM MACHINE TOOL OPERATING CONDITIONS FOR PERFORMING PARTICULAR MACHINING OPERATIONS, COMPRISING, IN COMBINATION, MACHINE TOOL SUPPORT STRUCTURE, A WORKPIECE SUPPORT MOUNTED ON SAID SUPPORT STRUCTURE, A ROTARY TOOL SUPPORTED SPINDLE MOUNTED ON SAID SUPPORT STRUCTURE, DRIVING MEANS FOR ROTATING SAID SPINDLE AT DIFFERENT SPEEDS, FIRST ADJUSTABLE CONTROL FOR ADJUSTING THE ROTARY SPEED AT WHICH SAID SPINDLE IS DRIVEN BY SAID DRIVING MEANS, FEEDING MEANS FOR FEEDING SAID SPINDLE TOWARD SAID WORKPIECE SUPPORT AT AN ADJUSTABLE FEEDING SPEED, A SECOND ADJUSTABLE CONTROL FOR ADJUSTING THE FEEDING SPEED AT WHICH SAID SPINDLE IS FED TOWARD SAID WORKPIECE SUPPORT BY SAID FEEDING MEANS, A SINGLE FRAME CAMERA, A RAPID SEQUENCE CAMERA, MEANS ON SAID SUPPORT STRUCTURE SUPPORTING SAID CAMERAS IN POSITIONS SUCH THAT THE OPTICAL FIELD OF EACH CAMERA COVERS AT LEAST PARTIALLY SAID SPINDLE AND SAID WORKPIECE SUPPORT, SAID FIRST AND SECOND ADJUSTABLE CONTROLS BEING POSITIONED WITHIN THE OPTICAL FIELD OF EACH OF SAID CAMERAS, A THRUST INDICATOR MOUNTED ON SAID SUPPORT STRUCTURE AND POSITIONED WITHIN THE OPTICAL FIELD OF EACH OF SAID CAMERAS FOR VISUALLY INDICATING THE THRUST APPLIED TO SAID SPINDLE A TORQUE INDICATOR MOUNTED ON SAID SUPPORT STRUCTURE AND POSITIONED WITHIN THE OPTICAL FIELD OF EACH OF SAID CAMERAS FOR VISUALLY INDICATING THE TORQUE APPLIED TO SAID SPINDLE, A FEEDING SPEED INDICATOR MOUNTED ON SAID SUPPORT STRUCTURE AND POSITIONED WITHIN THE OPTICAL FIELD OF EACH OF SAID CAMERAS FOR VISUALLY INDICATING THE FEEDING SPEED OF SAID SPINDLE TOWARD SAID WORKPIECE SUPPORT, A SPINDLE SPEED INDICATOR MOUNTED ON SAID SUPPORT STRUCTURE AND POSITIONED WITHIN THE OPTICAL FIELD OF EACH OF SAID CAMERAS FOR VISUALLY INDICATING THE ROTARY SPEED OF SAID SPINDLE, A MACHINING CYCLE COUNTER INCLUDING A CYCLE INDICATOR MOUNTED ON SAID SUPPORT STRUCTURE AND POSITIONED WITHIN THE OPTICAL FIELD OF EACH OF SAID CAMERAS FOR VISUALLY INDICATING THE NUMBERS OF SUCCESSIVE FEEDING MOVEMENTS OF SAID SPINDLE TOWARD SAID WORKPIECE SUPPORT, SYNCHRONIZING MEANS FOR OPERATING SAID SINGLE FRAME CAMERA TO PHOTOGRAPHICALLY RECORD THE VALUES INDICATED BY ALL OF SAID INDICATORS AUTOMATICALLY IN RESPONSE TO FEEDING MOVEMENT OF SAID SPINDLE TOWARD SAID WORKPIECE SUPPORT INTO A PREDETERMINED POSITIONAL RELATIONSHIP OF THE SPINDLE RELATIVE TO THE WORKPIECE SUPPORT, SAID SYNCHRONIZING MEANS INCLUDING FIRST AND SECOND CAMERA CONTROL MEANS