Honing principle:

Honing is a kind of low-speed grinding method, which is commonly used in finishing and finishing of inner hole surface. The honing oilstone is installed on a special honing head. The honing head is driven to rotate and move back and forth by the honing spindle, and the oilstone is extended through the expansion and contraction mechanism, and the pressure is applied to the hole wall for the feed motion to realize honing. In order to improve the honing quality, the honing head and the spindle are usually connected by floating or rigid connection with floating fixture, so as to reduce the influence of the coaxiality error between the honing spindle rotation center and the machined hole on the honing quality.

Honing features:

1. Good surface quality characteristics

Honing can obtain lower surface roughness, generally up to Ra0. 8-0. 025um. At the same time, there are even cross lines on the honing surface, which is good for oil storage lubrication.

2. High processing accuracy

Honing not only can obtain high dimensional accuracy, but also can correct the slight shape error of the hole before honing, such as roundness, cylindricity and surface ripple.

3. High honing efficiency

Multiple oilstones or superhard abrasive oilstones can be used, which can quickly remove the honing allowance and hole shape error, and effectively improve the honing efficiency.

4. Honing process is more economical

For thin-walled holes and workpieces with insufficient rigidity, or hard workpieces with irregular surface and shape, honing can be used for finishing, without complex equipment and tooling, and easy to operate.

Honing application range:

1. It is widely used in finishing or finishing of holes of various shapes. The working range of honing machine in China is: aperture: Φ 3 - Φ 250mm. Hole length: 3000mm.

2. Suitable for batch processing of cylinder sleeve hole, connecting rod hole, oil pump nozzle and hydraulic valve body hole, rocker arm, gear hole, etc.

3. It is suitable for the processing of metal and non-metal materials, such as cast iron, Quenched and UN quenched steel, duralumin, bronze, brass, hard chromium and hard alloy, ceramics and sintered materials, etc.