Website mapAdd to favouritesShenzhen ZhaoWei Machinery & Electronics Co. Ltd.

ZHAOWEI

Gear Reducer
Manufacturer Since 1997

Keywords:

ZHAOWEI Gearbox solution
Current location: Home » Latest News » The Heart Of The Mechanics

The Heart Of The Mechanics

Categories: Latest NewsRelease time: 2015-10-12 08:38:00
Source: ZHAOWEIEditor: ZHAOWEI Author: ZHAOWEI

This highly complex yet portable system relies to a large extent on state-of-the-art micro-stepper motors. Unlike DC motors, stepper motors move on per pulse at a step angle dependent on their specific design. Thus, the number of digital pulses output always corresponds to a defined rotation. As a result, additional linear or angular position sensors are not required. The construction of the drive is smaller and lighter, and it is simpler to control. The focus drive operates more or less continuously, as it has to compensate for every movement of the head.  Vision systems of this size are precision instruments and make particularly high demands on the accuracy of positioning.

metal planetary DC motor

The problem of inaccuracies due to "play" in the mechanics was solved by using a spindle with micro-toothing. With a pitch of 0.2 mm and in conjunction with the built-in motors, it allows a resolution of 10 µm. Both focus and zoom are set absolutely backlash-free and without jolts at high resolution. For this reason, the spindle shafts are also given an additional fine polish, a process which is normally only used in precision watches. In conjunction with a special lubricant, the level of friction is reduced considerably and thus also the initial breakaway torque.  An additional pre-tensioning on the precision ball bearings by disk springs facilitates zero-backlash movement at torques of up to 1 N, a value which never actually occurs in practice.

Information about

Contact ZHAOWEI

ZHAOWEI MACHINERY & ELECTRONICS CO. LTD.

Tel:+86-755-27322652

Fax:+86-755-27323949

E-mail:sales@zwgearbox.com

Add: Zhaowei Industry Park, Middle Chaoyang Road, Yanchuan Street, Songgang Town, Bao'an District, Shenzhen, 518105, Guangdong, China