Name: 錯位和擁有成本 (Misalignment and Cost of Ownership)
Uploaded: 2024-07-24T16:44:41.000Z
Duration: 4 min 26 s

未來進行式

I'm Jacob Rinda, and today we'll be discussing misalignment in linear motion applications, how misalignment could be increasing the cost of ownership of the machines you build or use, and how Roland's self-aligning linear motion systems can reduce the cost of misalignment during machine design and operation.

我是 Jacob Rinda，今天我們將討論直線運動應用中的不對中問題，不對中如何增加您所製造或使用的機器的擁有成本，以及羅蘭自動對中直線運動系統如何在機器設計和運行過程中降低不對中的成本。

基礎被動語態

In precise motion applications requiring more than 50 microns of repeatability, such as CNC machine tooling, very high precision rail, such as Roland Monorail, is needed to position payloads.

在重複精度要求超過 50 微米的精密運動應用（如數控機床）中，需要使用羅蘭單軌等高精度導軌來定位有效載荷。

This style of linear guide is also known as square rail or profile rail.

這種類型的直線導軌也稱為方形導軌或輪廓導軌。

Specifications vary between rails and manufacturers, but when multiple rails are used in parallel, they generally require about 30 microns of flatness and 130 microns of parallelism between the rails, or they will suffer premature failure due to misalignment.

不同導軌和製造商的規格各不相同，但當多根導軌並行使用時，導軌之間通常需要約 30 微米的平面度和 130 微米的平行度，否則會因錯位而過早失效。

Achieving that requires expensive machining or grinding of mounting surfaces.

要做到這一點，需要對安裝表面進行昂貴的加工或打磨。

Those surfaces must be carefully cleaned and in many cases verified for straightness and flatness with each other with a laser or coordinate measuring machine.

必須仔細清潔這些表面，在許多情況下，還必須使用脈衝光或三座標測量機來驗證它們之間的直線度和平面度。

And these mounting surfaces must be almost perfectly rigid, both during assembly and over the lifetime of the machine.

而且這些安裝表面在裝配過程中和機器的整個使用壽命期間都必須保持幾乎完美的剛性。

Now if the guides are misaligned, the blocks induce force on each other, they fight each other as they travel down the rails.

如果導軌錯位，滑塊就會相互受力，在軌道上移動時就會相互碰撞。

That uses up a portion of the load capacity of the bearing, greatly reducing life.

這會耗盡軸承的部分承載能力，大大縮短使用壽命。

It also causes binding, damage to the rails and slider blocks, and can sometimes even shear the fasteners used to mount the rails to a machine.

它還會造成捆綁、導軌和滑塊損壞，有時甚至會剪切用於將導軌安裝到機器上的緊固件。

And while it may seem intuitive to upsize the rails to overcome those issues, the rest of the system will then have to be upsized as well.

為了克服這些問題，擴大軌道的尺寸似乎很直觀，但系統的其他部分也必須隨之擴大。

So overcoming misalignment when using profile rail results in either increased cost upfront in machine design and manufacturing, or increased lifetime costs due to maintenance and warranty returns.

是以，在使用輪廓導軌時，要克服不對中問題，要麼會增加機器設計和製造的前期成本，要麼會因維護和保修退貨而增加終身成本。

All told, for this style of rail, misalignment is expensive.

總而言之，對於這種類型的導軌來說，不對中的代價是昂貴的。

However, in almost all transfer and automation applications, 50 microns of positioning precision isn't required.

然而，在幾乎所有的傳輸和自動化應用中，都不需要 50 微米的定位精度。

For the majority of linear motion applications, a 150 micron precision self-aligning track roller linear guide, like Roland Compact Rail, is likely suitable and will reduce the design, assembly, and maintenance costs of linear guide systems when compared to profile rail.

對於大多數直線運動應用而言，150 微米精度的自動調心滾輪直線導軌（如 Roland Compact Rail）可能比較合適，與型材導軌相比，它可以降低直線導軌系統的設計、裝配和維護成本。

Roland Compact Rail and Compact Rail Plus feature various rail and slider arrangements to accommodate misalignments.

羅蘭緊湊型導軌和緊湊型導軌增強版具有各種導軌和滑塊排列方式，以適應偏差。

In larger sizes, Compact Rail can absorb up to 50 millimeters of parallelism misalignment and 2 degrees of slider tilt caused by height misalignment.

在更大的尺寸中，Compact Rail 可以吸收高達 50 毫米的平行度偏差和由高度偏差引起的 2 度滑塊傾斜。

Compact Rail is a hundred times more compliant than profile rail, meaning that mounting surfaces don't have to be machined.

緊湊型導軌的順應性是異型導軌的 100 倍，這意味著無需對安裝表面進行機加工。

That alone can drastically reduce cost and save time.

僅這一點就能大大降低成本，節省時間。

Mounting surfaces also don't have to be inspected for flatness or parallelism, reducing cost and saving time during design and assembly.

安裝表面也無需進行平面度或平行度檢查，從而降低了成本，節省了設計和裝配時間。

Machine bases can be much less rigid, allowing lower cost materials to be suitable mounting surfaces, like moderate gauge sheet metal and aluminum extrusion.

機器底座的剛性可以低得多，是以成本較低的材料（如中等厚度的金屬板和鋁型材）也可作為合適的安裝表面。

And finally, rails can be the need for alignment lasers or coordinate measuring machines in reducing the number of personnel needed for assembly, saving time and reducing cost.

最後，在減少裝配所需人員數量、節省時間和降低成本方面，軌道可以不需要校準激光器或座標測量機。

If you'd like to know how to select the Compact Rail T, U, or K rail combination that will save time and money in your next application, check out our Compact Rail Tech Talk linked in the description below.

如果您想了解如何選擇 Compact Rail T、U 或 K 導軌組合，以便在下一次應用中節省時間和金錢，請查看下面描述中鏈接的 Compact Rail 技術講座。

And for more information on Roland's misalignment solutions, including catalogs and CAD files, or to get in touch with an engineer to design a linear motion solution to match your requirements, reach out to us at roland.com.

如需瞭解有關羅蘭不對中解決方案的更多資訊，包括產品目錄和 CAD 文件，或與工程師聯繫設計符合您要求的直線運動解決方案，請訪問 roland.com。

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