Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 7 of 7
  1. #1
    Join Date
    Apr 2009
    Location
    Kingswood
    Posts
    690

    Default CNC Turret Mill - Ballscrew Covers

    My re-furbishment of a Kondia FV-1 CNC turret mill has the Z and Y axes operating under computer control.
    The X-axis has got the ball screw installed and I need to assess the practicality of fitting covers before the table is mounted.

    I purchased some bellows through Alibaba some time ago, but they don't fit.

    Has anyone solved this problem and can recommend a solution ?

    Thanks in advance,
    John.

  2. #2
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
    Posts
    3,119

    Default

    Hi John,

    Will those flat spring type covers work ? You can put them on without dismantling the shaft.

    Metal bellows.png centry-covers_1_3.jpg

    This sort of thing.
    Best Regards:
    Baron J.

  3. #3
    Join Date
    Apr 2009
    Location
    Kingswood
    Posts
    690

    Default

    Hi BaronJ,

    The local (Sydney) price for identical lathe leadscrew covers is about AUD 1700, out of my league.
    A search on Ebay, Alibaba and Bangood did not produce any results.

    Do you have a source ?

    I found Spiroflex in Germany, but I am sure their pricing would be beyond me.

    I will contact my Alibaba supplier, but the ratios of min/max length and min/max diameter will make it difficult.

    John

  4. #4
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
    Posts
    3,119

    Default

    Hi John,

    Ouch ! That's a bit steep.

    Regretfully No ! But I do know someone I can ask. I'll do that tomorrow.

    You would think that with all the Chinese lathe manufacturing that they would be available as spare parts.
    Best Regards:
    Baron J.

  5. #5
    elanjacobs is offline Apprentice gear maker and machine doctor
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    29
    Posts
    278

    Default

    Quote Originally Posted by electrosteam View Post
    A search on Ebay, Alibaba and Bangood did not produce any results.
    Not sure what you were searching for, but "lead screw cover" and "ball screw cover" on Alibaba definitely produce results

    https://www.alibaba.com/product-deta...13961dd3pUTeck
    https://www.alibaba.com/product-deta...15f43720IMjsAW

  6. #6
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
    Posts
    3,119

    Default

    Hi John, Guys,

    I've just spoken to Lee Spring and they can make them to order ! Much cheaper than $1700.

    The link that Elanjacobs posted is much cheaper still !

    https://metalworkforums.com/redirect...13961dd3pUTeck
    Best Regards:
    Baron J.

  7. #7
    Join Date
    Apr 2009
    Location
    Kingswood
    Posts
    690

    Default

    Guys,
    Thanks for the responses, I guess my search techniques need some improvements !
    I will follow up on the telescopic helices and let you know the outcome.

    This does raise another issue though.
    On the end not driven by the stepper, the screw is quite a bit shorter, enough to come inside the saddle at maximum traverse, and is not supported by a bearing.
    The lack of length appears to come from simply duplicating the lengths of the original leadscrew, and that allowed for a shaft extension from the table feed power unit.

    I could remove the screw from the mill, add a shaft extension and a closure cap to the table end.
    The cap would enable a mount point for the helix end and ensure the table cannot traverse inside the saddle on that side.
    An alternative would be a spigot on the cap that lines up with the screw

    A mate come up with an idea during a workshop session last night.
    What about plastic lathe style leadscrew half-nuts spring-loaded onto the screw ?
    Easy (relatively) to inspect, clean and remove/replace.
    A brilliant suggestion.

    Lots for me to do,
    John

Similar Threads

  1. Beaver turret mill - Braybrook VIC
    By OxxAndBert in forum EBAY, GUMTREE, and other off forum sales sites
    Replies: 0
    Last Post: 13th Sep 2019, 11:01 PM
  2. Installing a Turret Mill.
    By Old Croc in forum METALWORK GENERAL
    Replies: 10
    Last Post: 23rd Aug 2017, 11:15 AM
  3. Argo Vertical Turret Mill
    By drsed in forum METALWORK GENERAL
    Replies: 4
    Last Post: 26th May 2012, 08:28 PM
  4. nice little turret mill on ebay
    By bollie7 in forum METALWORK GENERAL
    Replies: 0
    Last Post: 23rd Sep 2008, 08:58 AM
  5. Turret Mill
    By sinjin in forum METALWORK GENERAL
    Replies: 4
    Last Post: 22nd Nov 2006, 10:56 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •