Description

Processing capacity

Drilling hole diameterrange: Φ5～15mm

The max of Drilling depth:       300mm     

Number of main spindle:        four

Spindle spacing:               140mm

Automatic loading and unloading system：

1. Workpiece Clamping length range：  80～250mm (automatic loading and unloading)

 

2. Workpiece Clamping diameter range：≤50mm(automatic loading and unloading)

 

3. Workpiece shape：A suitable external shape similar to the one in the drawings

 

4. Automatic loading belt size：（To be determined, to meet the length of 80 ~ 250mm, diameter ≤ 50mm parts loading and unloading requirements）

 

5. Loading mode:automatic loading, V "type iron conveyor belt by 2 sprocket drag, Servo motor drive, CNC-control,To achieve automatic loading and unloading machine tools, The four workpieces in the work area correspond to the four spindles of the machine tool.

 

6. Machine protection: The host is totally enclosedprotective design. Of which, protection of the automatic loading and unloading system and protection of the whole machine are designed and produced based on 300mm maximal part clamping length.

Processing speed

1. Maximum work speed : 5000           r/min

2.Work speed:                 145           r/min

3.Feed force:                   0～500         ㎜/min

4.Fast forward speed:             ≤2000         ㎜/min

 

 Machining accuracy

Drilling skewness:    ≤0.5/1000      Processing hole depth( when the workpiece is rotating, draw ratio is less than 100 times,  reference material 45#, modulation treatment)

Drilling accuracy:            IT7～IT11        (reference material 45#, modulation treatment)

 Drilling roughness:         Ra0.8～Ra6.3      (reference material 45#, modulation treatment)

 

Part material: 16MnCrS5

Inner bore dimension tolerance: 9.90 0 -0.05; (see work piece diagram)

Coaxiality of inner hole and work piece excircle（Measurement datum A）: ≤0.1mm/100mm

Requirements before processing the work piece bore:

Coaxiality between excirclebevel in two ends of the work piece（Positioning datumB、C） and work piece φ27.7（Measurement datum A）excircle is 0.01mm.

 

Power

1、Motor Power of drill pipe:      5.5*2               KW    Variable-frequency drive

2、Motor Power of oil pump：     7.5*2               KW    Variable-frequency drive

3、Motor Power of Cooling machine   4                KW

4、Feed motor torque:           7                 Nm

Hydraulic system

1.Maximum flow                160               L/Min

2. Maximum pressure            10                 MPa

3. Filtration accuracy             20                 um

4. Oil reserve                  1360                L