HSA swage metrology calibration using solid weight gauge and torque sensor

1. An assembly, comprising:

a head stack assembly (HSA) swaging tester device, the HSA swaging tester device comprising:

a base;

a top tooling assembly connected to the base, the top tooling assembly comprising:

an actuator motor;

a load cell connected to the actuator motor; and

a force gauge connected to the load cell, the force gauge being configured to measure torque imparted by the actuator motor on an HSA being manufactured during an HSA swaging procedure; and

a selected one of a plurality of reference torque assemblies;

wherein the force gauge of the HSA swaging tester device is configured to be calibrated according to a selected one of a plurality of types of HSAs to undergo the swaging procedure by:

coupling the selected one of the plurality of reference torque assemblies to an axle connected to the actuator motor, the selected reference torque assembly being configured to impart a known torque onto the axle; and

adjusting the force gauge according to the torque imparted upon the axle by the selected reference torque assembly.

2. The assembly of claim 1 , wherein each of the plurality of reference torque assemblies is associated with a respective one of the plurality of types of HSAs to undergo the swaging procedure.

3. The assembly of claim 2 , wherein at least one of the plurality of reference torque assemblies comprises a removable rod configured to couple to an axle connected to the actuator motor; and a selected one of a plurality of different reference weights, each of the plurality of different reference weights being associated with a respective one of the plurality of types of HSAs to undergo the swaging procedure.

4. The assembly of claim 3 , wherein each of the plurality of different reference weights has a same cross-section and a different height.

5. The assembly of claim 3 , wherein each of the plurality of different reference weights is configured to removably couple to the removable rod at a predetermined distance from an end thereof.

6. The assembly of claim 1 , further comprising a dummy actuator pivot flex assembly mounted to the top tooling assembly.

7. The assembly of claim 1 , wherein the selected one of a plurality of reference torque assemblies is configured to be radially repositioned on the axle connected the actuator motor to enable a re-calibration of the force gauge.

8. A method, comprising:

providing a head stack assembly (HSA) swaging tester device, the HSA swaging tester device comprising a base, a top tooling assembly connected to the base, the top tooling assembly comprising an actuator motor, a load cell connected to the actuator motor and a force gauge connected to the load cell, the force gauge being configured to measure torque imparted by the actuator motor on an HSA being manufactured during an HSA swaging procedure; and

calibrating the force gauge according to a selected one of a plurality of types of HSAs to undergo the swaging procedure by:

coupling a selected one of a plurality of reference torque assemblies to an axle connected the actuator motor, the selected reference torque assembly being configured to impart a known torque onto the axle; and

adjusting the force gauge according to the torque imparted upon the axle by the selected reference torque assembly.

9. The method of claim 8 , wherein calibrating comprises selecting one of the plurality of reference torque assemblies according to the selected type of HSA to undergo the swaging procedure.

10. The method of claim 8 , wherein at least one of the plurality of reference torque assemblies comprises a removable rod configured to couple to an axle connected to the actuator motor; and a selected one of a plurality of different reference weights, each of the plurality of different reference weights being associated with a respective one of the plurality of types of HSAs to undergo the swaging procedure, and wherein coupling comprises:

coupling the removable rod to the axle connected to the actuator motor; and

coupling the selected reference weight to the removable rod at a known distance from an end thereof.

11. The method of claim 10 , wherein each of the plurality of different reference weights has a same cross-section and a different height.

12. The method of claim 8 , further comprising:

removing the selected reference torque assembly from the axle coupled to the actuator motor;

mounting an HSA of the selected type on the top tooling assembly; and

carrying out an HSA swaging testing procedure on the mounted HSA, with reference to the calibrated force gauge.

13. The method of claim 10 , further comprising:

selecting another one of the plurality of reference torque assemblies associated with a selected other one of the plurality of types of HSAs to undergo the swaging procedure;

coupling the selected other one of the plurality of reference torque assemblies to the axle connected to the actuator motor; and

calibrating the force gauge according to the selected other one of the plurality of types of HSAs to undergo the swaging procedure by:

adjusting the force gauge according to the torque imparted upon the rod by the selected other one of the plurality of reference torque assemblies.

14. The method of claim 13 , further comprising:

removing the selected other one of the plurality of reference torque assemblies from the axle coupled to the actuator motor;

mounting an HSA of the selected other type on the top tooling assembly; and

carrying out the HSA swaging procedure on the mounted HSA with reference to the calibrated force gauge.

15. The method of claim 8 , wherein adjusting is carried out with a dummy actuator pivot flex assembly mounted to the top tooling assembly.

16. The method of claim 8 , further comprising radially re-positioning the selected one of a plurality of reference torque assemblies on the axle connected the actuator motor and re-calibrating the force gauge.