Notes on the order and key points for selecting (calculating) the LM Guide

Today, we are going to discuss the "Notes on the order and key points for selecting (calculating) the LM GuideHere is a note about "The

The LM guide is often used in various machines, and this LM guide is the boss among machine elements,One of the most difficult items to select at the right timeI personally believe that this is a good idea, but today's content is the minimum you need to understand in order to select the right guide,

• What to understand before making calculations in LM Guide selection
• How to select from a large number of LM guides?
• LM Guide calculation sequence and method

I will make a note of the above.

What to understand before making calculations in LM Guide selection

When you need to choose a machine element called LM Guide

First of all, there are many guides in the world, not only LM guides. Among those many types of guidesI'll put it simply: "When you need to choose an LM guide."

• •  High loads are applied from multiple directions
  • Lighter and smoother high-speed transport
  • High durability and long life
  • Want to maintain high accuracy for a long time (do not want to cause changes in accuracy)

In the above cases, almost 1001 TP3TLM guides are required.

How to make a selection from many LM guides

There are many types of LM guides.LM guides are highly flexible in their selection as long as they are not required as lifetime or maintenance parts.So, I am wondering which model and model number to choose.Below I note the order of selection criteria that I am aware of.

(1) The first priority is the make and model specified by the customer (user).

First of all, it is important to check whether the end user is specified or not, so always check first.

If there is a specification for a maintenance part that is in stock at the end-user or has been specified in the past, it should be listed in the specification sheet. If not, there is no need to bother to check,If there is no specification from the end user, we choose a manufacturer based on the opinion of the department (in my case, the prime contractor) that purchases the product.If not, it is the order of manufacturers that I can easily handle.

(2) Check to see if options can be added to match the environment in which you will be using the system.

Once the manufacturer is selected, the model will be determined based on the general model.I will do so.

The type of seal, material, etc.?This is another point, but I think it would be a good idea to first check with the user to see their track record without selecting here an option that would be appropriate for their environment.We designers may select too many items.

(3) Confirm that the required service life is satisfied by performing load calculations.

Finally, here comes the process of calculating the load and determining the model number.This section needs a bit of explanation, so I will summarize it under the next heading.

(4) Bring up the topic in DR.

The model number determined by load calculation for the requested model is discussed in the DR and confirmation is obtained from the user.

(5) Fixed

Here it is finally confirmed.

The order and method of calculation of the LM Guide

Below is a bulleted list of the order of calculation in the LM Guide in major categories.Please review the order of load calculations in the LM Guide here.

Order of LM Guide calculations (roughly bulleted)

The above is the process.

The load calculation procedure for the LM Guide is a bit complicated and needs to be done with layout design as well, so labor is a bottleneck.Even if the load calculation is determined by a provisional model number, it may be necessary to change the width of the rails or blocks as the detailed design proceeds, and this may require the use of a preliminaryThe ideal situation would be to perform the calculation each time the layout is changed, since the situation would be different from the situation in which the load calculation was performed on the

This is usually when most mistakes are made in the selection of LM guides.The size of the product is Although we may go to the end of the design process with the size we decided on while looking at some safety issues at the time of tentative selection,It is possible to be in a state of uncertainty about capacity when the last calculations are made.

That's it.