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A Milling Vise is the most popular workholding solution for milling machines.

There is a question about what makes a good vas.

Cast iron is used to make a good Machinist Vise. With a wedge mechanism that pulls the jaw down onto the bed, the part is not lifted due to the jaws being tightened.

The Workholding Solution you will use most often is the machinist vise.

Clean the table.

The table of chips needs to be cleaned before you put a vise on it. You do n’t want a chip between the table and vise. You will probably want to tram the vise if you have a T-Slot table.

Tramming a vise is the procedure of using an indicator to sweep a vise jaw so you can adjust the vise position until the sweep shows the vise jaw is parallel to the axis.

Learning to tram is one of the basic skills a machinist must learn early on.

There is a tram on a mill.

There are jaw steps.

The next question is how to use the vise properly. Most of the time, we want to sit the piece high in the jaws. There is less area for a trip or other irregularity to influence what is going on because this is done both to provide access to the workpiece and because it provides more repeatability.

The jaws are usually installed in the vise that has a step that is high on the jaw. In the case of soft jaws, we can either machine the step ourselves or purchase jaws with a step already made.

There are Jaw tricks that can be applied outside the Jaws.

One of the first things to know is that you can mount the jaws inside or outside the normal jaw mounting locations. Larger plates can be gripped in the vise easily with mounting outside.

Quite a large object can be accommodated by mounting the jaws in the outside position.

Increasing rigidity is important. A vise jaw extension is used to help support the plate on end.

Multiple sais, Jaws that span sais, and grinding matching sais are used.

If you want to make full use of your machine, you need to use every square inch on the table. It is very common to install multiple vises on a mill table.

One such setup is shown in our photo above. It is not uncommon to see several vises on a large milling machine. The more you travel, the more parts you can machine before the machine has to stop so the operator can load new parts.

It ‘s convenient to have multiple vises on a machine if they match in all the key dimensions. If you are duplicating a setup and getting the vises in a different order, all will be well.

It is possible to use jaws that span both vises to handle long parts.

I made that set of Jaws for a project where I had to make a thin aluminum panel for some electronics.

The Double Station Machinist Vise is a double station.

You have taken advantage of the X-Axis by spreading three or four vises across your table. Double Station Vises can be used to take better advantage of the Y-Axis.

A double station vise is similar to 2 vises in one. You can really increase the number of parts that can be worked at the same time with double vises.

There are vises to hold other workholding solutions.

Between using multiple vises, double station vises, moving the jaws around, and even using jaws that span multiple vises, a lot is possible. You can use the vises to hold other Workholding gadgets. To get jaws working the other way, it is a very common trick to drop a vise into a Machinist Vise.

The vises are called toolmaker ‘s vises or grinding vises.

The small plate fixture that is designed to sit in a vise is often called a “ vise pallet ” since the individual plate fixture can be swapped out of the vises much like a pallet.

It is possible to leave vises on the machine in shops where the flexibility and simplicity of vise workholding is ideal for most of their jobs.

There was a suggestion made by Tormach to use a vise pallet with a toolmaker ‘s vise.

The Vise has soft Jaws and custom hard Jaws.

Soft Jaws on milling vises are very popular. The name aluminum vise jaws comes from the fact that aluminum is softer than iron and can be tailored for specific jobs. Sometimes a more durable material is better, in which case we have Hard Jaws.

Here are a few examples.

Soft jaws are used to locate and hold larger parts. The V will not support the part as well as the soft jaws.

We do n’t want to hold the whole height of the part in the jaws. There is a thin grip with the jaws. The little red circle points to a piece of furniture that is locked up. CarveSmart quick change jaws.

This is a common setup. The part is made from a block on the left. The mirror image of the part is flipped in a set of custom soft jaws on the right. The flat stock left from the original material is taken off by a Face mill.

Lang Innovations makes it easy to set the workpiece in the vise at a precise angle. The pins can be individually pushed in to create different holding patterns.

These are a few examples. Your imagination is the only limit when using Custom Jaws. The number and type of vises you have available will play a role in the table size.

Jaws can be changed quickly.

I hope you are aware that Milling Vises with Custom Jaws can be a powerful workholding solution. A lot of work is done with this style. Shops spend a lot of time creating Custom Jaws and often box them up in storage to use for other jobs or in case a customer reorders a part.

Even though the vises spend most of their time on the table, we still have a setup time problem. There are a variety of Quick Change Vise Jaws available. There are many different CarveSmart jaws.

The post was originally on the CNC Cookbook.

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Source: https://nhadep247.net
Category: Machine