6. Different axial clearance and preloading methods. Axial clearance is also a very important factor to consider when selecting lead screw, because the existence of clearance will lead to return error, which directly affects the accuracy of reverse operation. Ball screws are divided into different grades according to the gap. For example, THK is divided […]
When to use ball screw， When to use trapezoidal screw? How to select ball screw (or trapezoidal screw) and motor according to the requirements of precision, speed and load? What are the common forms of supporting structures at both ends? (fixed-supported) What is the structural design of nut decoupling at long stroke? Let’s look at […]
The coupling is used to connect the two shafts together. The two shafts cannot be separated when the machine is running. The two shafts can only be separated after the machine is stopped and the connection is disconnected. Do you know what are the classifications of couplings? Let’s follow the editor to find out: 1. […]
When choosing the linear guide rail of linear module, we should choose the appropriate size according to the working environment, and choose the appropriate product while ensuring the accuracy. Besides, the correct installation and lubrication protection of the guide rail are also very important. 1. High guiding accuracy: the guiding accuracy refers to the linearity […]
Inspection and repair of clearance between ball screw nut pair and supporting system. When the numerical control machine tool has large reverse error, unstable positioning accuracy and knife marks in the quadrant, the first step is to check whether the screw system has clearance. The detection methods are as follows: put the ball in the […]
At present, with the high speed of the machine tool industry, the load on the ball screw is increasing, and the high-precision and large-lead screw is very necessary. Therefore, the ball screw has become an indispensable part of the machine tool. The maintenance method of the ball screw is generally the same as other devices […]
Rust treatment and antirust method of linear guide rail. As one of the core components of the equipment, the linear guide rail and the linear shaft play a guiding and supporting role. In order to ensure the high machining accuracy of the machine, it is required that the guide rails and straight lines have high […]
Reasons affecting the normal use of ball screw. One of the reasons for the unsmooth running of the ball screw can be divided into two situations. One is that during shipment, many packing materials and anti-bagging packing ball nuts, and when the screw is packed or arranged with steel balls, there is no proper standard […]
1. The accuracy grades of linear guide rail are divided into (walking parallelism, taking the guide rail 100mm long as an example), general grade (unmarked /C)5μm, (H)3μm, precision grade (P)2μm, precision grade (SP)1.5μm and precision grade (UP)1μm according to the use of different machines. Preload the slider. Generally, preloading is divided into medium preloading and […]
1. Linear guide rail pair is generally composed of guide rail, slide block, reverser, rolling body and holder, etc. It is a new rolling support for relative reciprocating linear motion, which can replace direct sliding touch with steel ball rolling between slide block and guide rail, and the rolling body can complete infinite circulation in […]
