導軌絲桿用途，滾珠絲桿作為將旋轉運動轉化為直線運動或直線運動轉化為旋轉運動的理想產品，在設備中起著關重要的作用，但在機器的設計過程中，我們要如何選擇滾珠絲桿呢？下面由涌創智深工程師金工為你介紹一下，以便在設計的過程中，省時又省力！從滾珠絲桿具有精度高、可逆性好、效率高等特點來定義絲桿

Guide screw, ball screw as the rotation movement into linear motion or linear motion into rotary motion ideal product, in the equipment plays a vital role, but in the machine design process, how do we choose the ball screw? Below by Yong Chuangzhi deep engineer metal workers to introduce you, in order to design the process, save time and effort! The ball screw has the characteristics of high precision, good reversibility and high efficiency

1。我們要知道滾珠絲桿的墊圈類型、螺紋類型、齒差類型軸向間隙調整和預壓力進行選擇。在選擇過程中要做到:經濟可靠、剛性高、拆卸方便，才不于在使用的時候手忙腳亂的。于選擇雙螺母墊圈式預壓的理由，則是因為其產品結構簡單、可靠性好、剛度高、拆卸方便。

 1. First of all, we need to know the ball screw washer type, screw thread type, tooth type axial clearance adjustment and pre-pressure to choose. In the selection process to do: economic and reliable, rigid high, easy to dismantle, so as not to be in use when in a hurry. As for the reason of choosing double nut Washer type preloading, it is because of its simple structure, good reliability, high rigidity and convenient disassembly.

2、對于滾珠絲桿里面的鋼珠循環進行選擇，有內循環和外循環兩種，一般我們選擇外層循環的原因是因為其結構制造簡單、經濟、實用。

2. There are two kinds of steel ball circulation in ball screw, inner circulation and outer circulation. The reason why we choose outer circulation is that its structure is simple, economical and practical.

3。對于螺紋滾道廓形選擇方面，我們盡量選擇單弧剖面雙弧，主要是調試穩定。然而選擇2雙圓弧面的原因，則是因為選擇接觸角保持不變，在這兩條弧線的交點仍然有一個小的間隙。

根據以上幾點，我們就可以確認了滾珠絲桿的選擇，然而在實際機器設計中，我們要根據選型資料進行選擇！

Three. For the selection of thread raceway profile, we try to choose single ARC profile and double arc, which is mainly for debugging and stability. The reason for choosing 2 Double Arcs, however, is that the contact angle remains the same, and there is still a small gap at the intersection of the two arcs. According to the above points, we can confirm the choice of ball screw, however, in the actual machine design, we have to choose according to Type Selection Information!

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