Issue: 

What do the following 5 parameters of the peck drill mean?

Explanation:

  1. The drill tool first rapids to the clearance position (for example, Z3, assuming Z0 is the hole start position).
  2. It then feeds into the material by the Max Peck Depth, considering the Reduction Start and Reduction Factor settings. In this example, the Reduction Start value is 2, so the first peck depth is 5, reaching Z-5.
  3. The tool then rapidly retracts to the clearance position (Z3).
  4. Next, it rapidly moves to a position above the last drilled depth according to the Retract Offset. Since the previous depth was Z-5 and the Retract Offset is 1, the tool moves to Z-4.
  5. The tool then performs the second peck. Since this is the second peck, depth reduction begins. The peck depth is reduced by Max Peck Depth × Reduction Factor, which is 5 × 0.2 = 1. Therefore, the second peck depth is 4, and the tool drills from Z-5 to Z-9.
  6. The tool rapidly retracts to Z3 and then rapidly moves to Z-8 (Z-9 + 1).
  7. For the third peck, the peck depth is reduced again by 1, resulting in a peck depth of 3. The tool drills from Z-9 to Z-12.
  8. The tool rapidly retracts to Z3 and then rapidly moves to Z-11 (Z-12 + 1).
  9. For the fourth peck, the calculated peck depth would be 2. However, this is smaller than the Min Peck Depth value of 3. Therefore, no further reduction is applied, and the peck depth remains fixed at 3 for all subsequent pecks.
  10. The tool drills from Z-12 to Z-15, retracts to Z3, rapidly moves to Z-14, and then continues drilling with a peck depth of 3 (for example, Z-15 to Z-18, Z-18 to Z-21, and so on) until the final hole depth is reached.

Notes:

The parameters:
d = Retract Offset
Q = max(Min Peck Depth, Max Peck Depth*[1-(Reduction Start-1)*Reduction Factor])


CN Solution
JP Solution


★★★How to set the machining depth of a pecking drill：https://confluence.zwcad.com/pages/viewpage.action?pageId=339774053

  • No labels