Q235 round steel is a building material formed by rolling screw machine.
It is composed of a screw rod, a screw nut and a screw holder.
Used for engineering construction, bridge construction and scaffolding.
Strong bearing capacity, full welding, fine workmanship.
Size can be made according to customer's requirement.
On a machine tool there is a component made of long, thin metal bars. These are highly polished surfaces, some with threads. Generally in the above machine tool has the thread, calls the lead screw.
1. According to GB/ t17587.3-1998 and application examples, ball screw (now has basically replaced the trapezoidal screw, has been commonly known as the screw screw) is used to convert the rotary motion into linear motion; Or the linear motion into a rotating motion of the executive components, and has a high transmission efficiency, accurate positioning and other characteristics.
2. When the lead screw as the active body, the nut will be with the lead screw rotation Angle in accordance with the corresponding specifications of the lead into a straight line movement, the passive workpiece can be connected through the nut seat and nut, thereby achieving the corresponding straight line movement.
3. Ball screw screw because there is no clearance, the linear motion of high precision, especially in the case of frequent commutation without clearance compensation. The friction between the ball screws is very small, so it is very easy to rotate.
4. Ball screw and motor connection must be installed in the middle of the coupling to achieve flexible connection. The synchronous belt can be directly connected with the motor output shaft by the synchronous wheel.
5. Ball screw pair according to the national standard GB/T17587.3-1998, divided into positioning ball screw pair (P) and driving ball screw pair (T) two kinds big. Precision grade is divided into seven levels, namely 1.2.3.4.5.7.10 level, level 1 highest precision. In turn reduce.
6. Nut ball screw rotation week moving distance for a pitch distance, if the screw turn every week nut moving distance of four or five helix, then said that the screw is four thread screw (or five line), commonly known as four or five head screw. Generally, small lead ball screw adopts single line, medium, large or large lead adopts two or more lines. Efficient processing method of a ball screw - whirlwind milling screw screw efficient processing whirlwind milling is installed on the lathe form a complete set of high speed milling and lathe threading device, install the whirlwind milling lathe low drag board lathe clamping screw through the feed movement, whirlwind milling drive high-speed rotary cutter carbide cutting tools, complete the cutting motion. A method of machining threads by milling out threads from a lead screw. Because of its high milling speed (up to 400m/min), the machining efficiency is fast. And USES the compressed air to carry on the chip cooling. In the processing process, the chips flying like a whirlwind named - screw cyclone milling.Hot Dip Galvanized Scaffolding suppliers
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