eventhorizons
Plastic
- Joined
- Jun 27, 2022
I lurk around here a lot, soaking up tip and tidbits of know-how as much as I can, but this is my first post.
I have a Hardinge HLV-H that I mostly use with collets. I have a 5" Hardinge 3-jaw chuck (Buck?) with the integrated taper attachment. Could not find a part number or a serial number but maybe I need to look harder.
Was working with some 1.5" round stock this weekend and I noticed that when I close the jaws on the stock, the jaws make contact with the stock first deep inside the chuck. The stock is then free to wiggle quite a bit! There is a significant gap at the outer tips of the jaws.
I can tighten the jaws lightly, tap the stock until it has a minimal run-out and then clamp down but I don't think that is an acceptable way to work.
I pulled the jaws out, cleaned everything up and checked the fit. The jaws are very snug in their grooves. If I place the jaws face-to-face on a surface plate, they do appear be out of square, but I'm not sure if I trust the teeth as a reference surface.
I was wondering if this was normal?
If not, should I get new jaws or try to re-grind these jaws?
Thanks!
I have a Hardinge HLV-H that I mostly use with collets. I have a 5" Hardinge 3-jaw chuck (Buck?) with the integrated taper attachment. Could not find a part number or a serial number but maybe I need to look harder.
Was working with some 1.5" round stock this weekend and I noticed that when I close the jaws on the stock, the jaws make contact with the stock first deep inside the chuck. The stock is then free to wiggle quite a bit! There is a significant gap at the outer tips of the jaws.
I can tighten the jaws lightly, tap the stock until it has a minimal run-out and then clamp down but I don't think that is an acceptable way to work.
I pulled the jaws out, cleaned everything up and checked the fit. The jaws are very snug in their grooves. If I place the jaws face-to-face on a surface plate, they do appear be out of square, but I'm not sure if I trust the teeth as a reference surface.
I was wondering if this was normal?
If not, should I get new jaws or try to re-grind these jaws?
Thanks!