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Lifting milling vice off mill table

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Douglas Johnston30/06/2022 15:58:17
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I am getting fed up struggling to lift off my vice from the mill table and wondered if others have the same problem and if anyone has a solution. The problem arises after I have been using neat cutting oil and there is a film of oil under the vice which binds the vice to the table. The vice base has quite a large surface area and is fitted with an alignment tenon which means it can only slide sideways when trying to lift it. Is there any way of breaking the oil "glue" before lifting?

Doug

Thor 🇳🇴30/06/2022 16:19:43
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1661 forum posts
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Hi Douglas,

I usually mill dry so not much of a problem for me. May be a Mill Vice Grip would help you?

Thor

Andrew Johnston30/06/2022 16:29:54
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6678 forum posts
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I don't use cutting oil or tenons on the vice, ergo no problem.

Andrew

Baz30/06/2022 16:43:44
757 forum posts
2 photos

Simple answer is to put a large screwdriver into the tee slot and lever the vice upwards to break the oil film. I always oil the bottom of the vice before mounting on the mill to stop any coolant etc rusting the table and only use tenons on smaller vices that I can lift off easily, the larger vices are slid to the edge of the table before being lifted.

Norfolk Boy30/06/2022 16:44:11
68 forum posts
18 photos

If I understand the question properly put a length of bar in the vice sticking out to the side, and a piece of wood on the table and use a piece of wood as a lever to crack the seal. If its that much of an issue shim stock under key mount positions will decrease the "suction" area allowing the air in .

Alan

Douglas Johnston30/06/2022 17:50:37
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Posted by Norfolk Boy on 30/06/2022 16:44:11:

If I understand the question properly put a length of bar in the vice sticking out to the side, and a piece of wood on the table and use a piece of wood as a lever to crack the seal. If its that much of an issue shim stock under key mount positions will decrease the "suction" area allowing the air in .

Alan

That sounds like a good idea Alan, I must give it a try. The tenon under the vice prevents any levering in the T slot of the table so your solution is probably the best way forward.

Doug

Douglas Johnston30/06/2022 17:57:37
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773 forum posts
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Posted by Thor 🇳🇴 on 30/06/2022 16:19:43:

Hi Douglas,

I usually mill dry so not much of a problem for me. May be a Mill Vice Grip would help you?

Thor

This is also a neat idea Thor, and would work well with a dry table and vice but not too sure that it would improve matters with the oil problem.

Doug

Neil Lickfold30/06/2022 20:16:19
892 forum posts
195 photos

Just a long piece of wood clamped in the vice , with another piece of wood on the table opposite the end sticking out. It then lifts the vice off of the table easily. Then slide a piece of thin board under neath to cover the bed slots. You can easily do the reverse to remove it. Putting some wax paper under the vice can also help with this issue sometimes. I would avoid using printer paper, as if you use coolants, sometimes the printer paper can cause rusting.

Mark Rand30/06/2022 21:00:45
1314 forum posts
38 photos

I'm ashamed to say that I often use a crane. The 6" vice isn't too bad, but the 6" vice and its swiveling base is a bit more, the rotary table with its over sized chuck is definitely dangerous and the tilting table is an accident waiting to happen.

I've cut the pieces up and am waiting for an opportunity to weld together a number of arms to mount on the side of the mill to hold the vices, table etc. Then I'll be able to put them on and off the table by raising and lowering the knee.

Peter Greene 🇨🇦01/07/2022 01:15:12
559 forum posts
8 photos

Neil's method seems least complicated, eminently common-sense and easiest to implement from my (armchair) perspective.

Bazyle01/07/2022 13:29:37
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6384 forum posts
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With their tendency to have bigger machines the Americans seem to more often be discussing moving big devices off their mill tables. have a look round the HSM forum. (hope nobody objects to mention of another forum - my view is everyone should be monitoring both these forums)

Nigel Graham 202/07/2022 13:31:13
2287 forum posts
33 photos

Re the waxed paper tip:

One source might be the greaseproof (paper? plastic?) bags used inside the larger sizes of cereal packets. Cut the bag so the part used contains no fold or seam.

Silicon baking "parchment" might be another but I can't speak for its ability to avoid or encourage rusting. (NB: you might need permission before raiding the kitchen cupboard...)

I don't use flood cooling on my milling-machine but if I intend leaving a vice bolted down for a long time I generally spread a thin film of grease over its underside first.

SillyOldDuffer02/07/2022 13:56:53
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8903 forum posts
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Posted by Mark Rand on 30/06/2022 21:00:45:

I'm ashamed to say that I often use a crane. ...

Why ashamed? Making due allowance for one's health and physique is intelligence in action.

Model Engineering isn't a weight-lifting competition. I'm not going to risk my delicate back  just to persuade the forum I'm a he-man.

smiley

Dave

 

Edited By SillyOldDuffer on 02/07/2022 13:57:17

Mike Poole02/07/2022 15:54:47
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3383 forum posts
77 photos

Is there a convenient place on your vice that you could install a soft faced jacking screw to break the base to table seal.

Mike

duncan webster02/07/2022 16:02:02
4123 forum posts
66 photos

Drill some small intersecting holes so you can apply compressed air to the centre of the adhering areas?

Douglas Johnston03/07/2022 18:33:55
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773 forum posts
34 photos
Posted by duncan webster on 02/07/2022 16:02:02:

Drill some small intersecting holes so you can apply compressed air to the centre of the adhering areas?

A good idea but I don't have a supply of compressed air.

Doug

Douglas Johnston03/07/2022 18:37:41
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773 forum posts
34 photos
Posted by Mike Poole on 02/07/2022 15:54:47:

Is there a convenient place on your vice that you could install a soft faced jacking screw to break the base to table seal.

Mike

I did think of that but there is no convenient place to provide a screw. Mind you I could clamp a bar of steel in the vice jaws with part of the bar overhanging the vice and put a screw in the overhanging part.

Doug

Mark Rand03/07/2022 20:58:18
1314 forum posts
38 photos

I suppose if the only problem is the 'suction' of the oil later, then a lever with a pin through it would do. The lever would reach under the edge of the vice through a T slot, with a pin through it to provide leverage against the table. This could break the vice away from the table an allow it to be picked up.

Alternatively, use a T bolt or similar held in the vice and <something in the spindle>. Either lower the table or raise the head, as appropriate to the mill. Then a bit of wood can be slid under the vice and it can be released from the spindle and hauled out of the way.

duncan webster03/07/2022 23:31:03
4123 forum posts
66 photos
Posted by Douglas Johnston on 03/07/2022 18:33:55:
Posted by duncan webster on 02/07/2022 16:02:02:

Drill some small intersecting holes so you can apply compressed air to the centre of the adhering areas?

A good idea but I don't have a supply of compressed air.

Doug

Bicycle pump?

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