JHOLLAND1
Titanium
- Joined
- Oct 8, 2005
- Location
- western washington state
here is new video release from DMG
emphasis is on configuration versatility---in this case a trunnion type rotary fifth axis
what caught my eye was the uncovered linear tracked guideways used by the
rotary axis
Mori Seiki has a "Business and Capital Collaboration with Germany's GILDEMEISTER AG"
dating to 2009
and when you look at the product offerings of M Seiki, DIXI--which Mori owns
and DMG there appears to be a commonality of linear roller bearing guideways---
and interestingly none of the machine frame makers want to draw attention to this
maybe because they do not make the linear track-- THK and NSK seem to prevail in
the higher priced machines
so ---looking over the literature of THK interesting facts appear--
thk notes that simply rough milling a load bearing surface and then applying
linear guideway will improve accuracy by an immediate 90%
and if you are DIXI, you use tracked rail for load bearing components but
spend 500 hours scraping machine frame and even rail cars to move into
the 2 millionths/inch repeatability the machine promises
THK also notes nonchalantly lithium soap grease should be used as track
lube--and you will reduce way lube consumption by 93%
sure, there is lots of used iron begging for a good scrape--but the message
from new product makers seems clear---rail, rail, and more rail
DMU 100 monoBLOCK - YouTube
jh
emphasis is on configuration versatility---in this case a trunnion type rotary fifth axis
what caught my eye was the uncovered linear tracked guideways used by the
rotary axis
Mori Seiki has a "Business and Capital Collaboration with Germany's GILDEMEISTER AG"
dating to 2009
and when you look at the product offerings of M Seiki, DIXI--which Mori owns
and DMG there appears to be a commonality of linear roller bearing guideways---
and interestingly none of the machine frame makers want to draw attention to this
maybe because they do not make the linear track-- THK and NSK seem to prevail in
the higher priced machines
so ---looking over the literature of THK interesting facts appear--
thk notes that simply rough milling a load bearing surface and then applying
linear guideway will improve accuracy by an immediate 90%
and if you are DIXI, you use tracked rail for load bearing components but
spend 500 hours scraping machine frame and even rail cars to move into
the 2 millionths/inch repeatability the machine promises
THK also notes nonchalantly lithium soap grease should be used as track
lube--and you will reduce way lube consumption by 93%
sure, there is lots of used iron begging for a good scrape--but the message
from new product makers seems clear---rail, rail, and more rail
DMU 100 monoBLOCK - YouTube
jh