Gap detection apparatus

1. A gap detection apparatus comprising:

a tooling electrode forming a plurality of through-holes;

a plurality of tool adjusting electrodes configured to be received in the through-holes;

a processing feed mechanism configured to control the tooling electrode;

a three-dimensional driving mechanism mounted upon the processing feed mechanism and comprising a Z-coordinate feeding portion and a thimble for feeding of the tool adjusting electrodes; and

an automatic control and measurement system configured to control the feed of the processing feed mechanism and the three-dimensional driving mechanism and measure an electrochemical machining gap, which is formed between the tooling electrode and a workpiece.

2. The gap detection apparatus as claimed in claim 1 , wherein the tooling electrode further comprises a plurality of springs, a plurality of clasping rings, and a processing portion.

3. The gap detection apparatus as claimed in claim 2 , wherein each of the tool adjusting electrodes is a substantially T-shaped cylinder, and comprises a head portion and a pillar portion.

4. The gap detection apparatus as claimed in claim 3 , wherein the head portion comprises a upper surface, and the pillar portion can include a lower surface opposite to the upper surface;

the springs are coiled around the pillar portions, and the inner diameter of each of the springs and clamping rings can be less than the diameter of the upper surface.

5. The gap detection apparatus as claimed in claim 2 , wherein the tool adjusting electrodes are received in the through-holes by the clamping rings.

6. The gap detection apparatus as claimed in claim 1 , wherein each of the through-holes is a stepped hole, and comprises a upper through-hole portion, middle through-hole portion, and a lower through-hole portion.

7. The gap detection apparatus as claimed in claim 6 , wherein the diameter of the upper through-hole portion is larger than the diameter of the middle through-hole portion, and the diameter of the middle through-hole portion is larger than the diameter of the lower through-hole portion.

8. The gap detection apparatus as claimed in claim 1 , wherein the thimble is connected with the Z-coordinate feeding portion.

9. The gap detection apparatus as claimed in claim 2 , wherein the diameter of the thimble can be less than the inner diameter of each of the clamping rings.

10. The gap detection apparatus as claimed in claim 4 , wherein the upper surface is flushes with the processing portion cooperatively defining a processing portion surface.

11. The gap detection apparatus as claimed in claim 1 , wherein the gap detection apparatus further includes a feedback circuit.

12. The gap detection apparatus as claimed in claim 11 , wherein the feedback circuit comprises a electrical power source and a sampler.

13. The gap detection apparatus as claimed in claim 11 , wherein the feedback circuit is connected with the processing electrode and the workpiece.

14. The gap detection apparatus as claimed in claim 11 , wherein the short circuit voltage of the electrical power source is less than the decomposition voltage of electrochemical machining for the workpiece.

15. The gap detection apparatus as claimed in claim 1 , wherein the three-dimensional driving mechanism faces the tooling electrodes.