Auto Drilling Boring SPM

Technical Features :

• Box Stand : To mount Headstock, slides, electrical, enough top floor is kept. Approximately 30 to 35 mm top base thickness to get firm rigidity. The bottom supports are not separately joint, but integral as a one piece. Because of from bottom to top one piece, vibrations will be avoided. Necessary guarding are provided.
• Headstock :Fabricated /  Casted, having hardened and ground spindle. Spindle

Nose is capable to hold various collets and cutter arbor, suitable to your requirement. There are 2 head stocks 1 for Dia.19/19.5  2-Spindles- U- drilling and 1 for Dia.20

2-spindle boring operations. Each head stock having separate motors with required HP/KW.

• Base and Slides :Fabricated / Casted with hardened and ground rigid guide ways, keeping sliding clearances within 0.015 mm to 0.025 mm by keeper plate and taper wedges. Both Udrill and Boring slides will move (RAPID + FEED) forward by Hydraulic cylinder.

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  Electrical : All electrical will be used of reputed make companies. Electrical 

      control panel will be mounted on box stand and operating panel box will be

      mounted as suitable to machine operator.

• Hydraulics : Hydraulics of reputed makes like Dowty pumps, Polyhydron valves, Yuken make solenoids are to be used.
• Feed : With cutting speed 150 to 400 meters/min, depending upon the type of cutting inserts used.
• Operation sequence :

(1)   Mount 2 component on 2 V-blocks on Its 2 walls and clamp by 2 separate Hydr. Cylinders by necessary pressure.

(2)   Now U-drill head will slide and will complete drilling operation

(3)   After completion of drilling operation claming pressure will be released suitable to boring operation then opposite side boring head will slide and finish boring operations will be completed.

(4)   Now the all operations are completed so unload the component.  

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  Technical Parameters :

Considering the cutting speed of U-drill  200m/min. and feed/tooth 0.15mm and cutting speed of boring 200m/min and feed o.2 mm/rev we will achieve the results are as follows :

(1)   KW/HP For     U drills   ---------------------------       7.5/10

(2)   RPM For U-drill        ----------------------------          2200/2400

(3)   Table Feed For U-drill      -----------------------         300mm/min.

(4)   KW/HP For Boring Dia.20                            ---       3.7/5

(5)   RPM For Boring                                            ----      3500/4000

(6)   Table Feed Boring(110,106,chamfer,95.4) ---          550mm/min

• Timings  :
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(1) Job Loading and clamping                                  Approx.  20 seconds

(2)  19 /19.5 U-drilling                                                            12 seconds

(3)  20 Boring                                                                            7 seconds

 (5) Job un loading and cleaning(cleaning by compressor)     20 seconds

    Total Time For Doing All Above Operations approx.--     59 seconds .