I.Pertormance
The machine tool adopts the feeding method
of belt pulley wheel clamping.The power is transferred by the variable
frequency motor.As a result,the adjustment in the upward and downward
diameter directions and the adjustment of leftandrght thickness direction
can be made manually and through the locking mechanism.The accessories
of the feeding support are also provided so as to realize automatic
feeding once the accessories are interlinked with the hoisting machine.
-----The speed of the grnding wheel heads can be adjusted with the frequency
converter.
-----The grinding head feeding can be performed manually or hydraulically
inched.
-----The axle house of the wheel head adopts the¡°V¡±slippage.Akingpin
is used on the top so as to keep constant stabilized condition of the
abrasion wheel.
-----The main axle of the wheel head adopts high precision bearings
with oil fog iubrication so as to realize non-stop run without heating
the wheel head and to ensure the precision stability of the machine
tool.
-----The horizontal and vertical adiustment of the wheel head adopts
the three-point fix.The value can be read directly from the indicator.
-----An oscillating-arm trimmer is applied. It is controlled by the
straight line cylinder and can be divided into two processes of fine
and coarse trimming£®
-----The hydraulic unit is independent so as to increase the stability
and precision of the machine tool.
II.Machining Precision
Taking
202 bearing as an example:
1.Parallel
difference between the two surfaces 0.002mm
2.Length difference of work piece¡¡¡¡¡¡¡¡¡¡¡¡0.02mm
3.Roughness of work piece¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Ra0.25¦Ìm
III.Technical Parameters
|
Item
|
unit
|
Specification
|
| (1)Range of work | ||
| ¡¡Diameter of work | mm | ¦µ20~¦µ100 |
| ¡¡Thickness of work | mm | 3~50 |
| (2)Major parameters | ||
| ¡¡Diameter of abrasion wheel | mm | 585¡Á65¡Á20 |
| ¡¡Speed of main spindle | r/mim | 950(differential speed adjustable) |
| ¡¡Feeding speed | m/mim | 2.5~10(frequency control) |
| ¡¡Amount of feed of wheel head grinding | mm | 0.0025~0.02 |
| ¡¡Amount of feed of wheel head correction | mm | 0.0025~0.02 |
| ¡¡Electric machine of wheel head | kw | 22¡Á2 |
| ¡¡External dimensions(L¡ÁW¡ÁH) | mm | 2950¡Á1910¡Á1720 |
| ¡¡Weight | kg | 6500 |