Drill test fixture
AssigneeCooper Industries, Inc.
InventorsEdwin J. Deremo, Joseph Carter, Kenneth LaCount
Life of this patent
Estimating the term…
Abstract
A test fixture for comparing the performance characteristics of air feed drills includes a frame and a simulated linear thrust load. Included also is a peck counter, a linear transducer for measuring stroke length, and an rpm counter. These measurements are visually displayed and may be optionally used as inputs for the calculation of various operational ratios which may also be displayed.
Claims15
A device for comparing the performance characteristics of air feed or peck air feed drills, said device comprising:
- a frame;
- means for mounting the air feed or peck air feed drill within said frame;
- a simulated linear thrust load;
- means for coupling the work output of the air feed or peck air feed drill to said simulated linear thrust load;
- said means for coupling the workout output of the air feed or peck air feed drill to the simulated thrust load further including:
- means for counting the umber of pecks;
- means for measuring drill travel;
- means for measuring drill rpm;
- means for controlling the time of drill operation.
A device for comparing the performance characteristics of an air feed drill, said device comprising:
- a frame;
- means for mounting the air feed drill within said frame;
- a simulated linear thrust load;
- means for coupling the work output of the air feed drill to said simulated linear thrust load;
- said means for coupling the workout output of the air feed drill to said simulated linear thrust load further including:
- means for measuring linear drill travel;
- means for measuring drill rpm;
- means for controlling the time of drill operation.
A method for comparing the performance characteristics of air feed or peck air feed drills, said method comprising the steps of:
- coupling an air feed or peck air feed drill to a simulated linear thrust load;
- controlling the drill cycle time;
- counting the number of pecks;
- measuring total drill travel;
- measuring rpm of the self feeding drill.
Dependencies are inferred from the claim text.