FABRICATION OF AUTOMATIC CLAMPING, INDEXING AND

HYDRO PNEUMATIC FEED CONTROL OFDRILLING ATTACHMENT

OBJECTIVE;

To develop industrial automation and assist with CIM environment.

To promote the unmanned industry.

To promote the unmanned industry.

Project Background;

In the present global rationalization and competitive world most

of the industries set up unmanned industry in order to eliminate

labour cost and to increase productivity.

ABSTRACT;

In our project “FABRICATION OF AUTOMATIC CLAMPING, INDEXING

AND HYDRO PNEUMATIC FEED CONTROL OFDRILLING ATTACHMENT” , the

drilling machine feed is controlled automatically with the hydro-pneumatic

cylinder and the job is clamped by the pneumatic cylinder.

Here, a portable hand-drilling machine is held in horizontal on a

platform with a clamping attachment, which is fitted to the piston rods of the

hydro-pneumatic cylinders. In hydro-pneumatic cylinder, one cylinder is

filled with the oil on both sides of piston. This oil cylinder ports are

connected through the pvc pipeline..

The drilling depth can be set with the arrangement of linear scale and

limit switch and is placed adjacent to the drill spindle. When the switch is

pressed, this spindle starts rotating and slides by the hydro-pneumatic

cylinder. The drill spindle automatically returns to the home position by the

limit switch when it reaches the drilling depth. After completing the first

drill on the job , the work piece is indexed for second drilling operation by

the another air cylinder. Again the same drilling process is made for second

drill.

The drilling machine ON/OFF control and the solenoid values are

connected to the control system.. The signals from the switches are fed to the

input of the electronic control

ADVANTAGES;

This system is used to develop industrial automation

and assist with CIM environment.

It promote the unmanned industry.

Reduces waste motions which cause fatigues to

worker.

It reduces labour cost

PROJECT ELEMENTS;

• Relay Controller

• Power Supply 24VDC

• Drilling machine( 1 no)

• Air cylinder ( 3no)

• Oil cylinder ( 1no)

• 5/2 way solenoid operated directional control valve 3 nos

• M.S, fabricated base stand with sliding unit

Block Diagram

Power Supply

5/2 way solenoid directional control valve for clamp

Micro Control Unit Operated at 5 volts DC Supply

5/2 way solenoid directional control valve for next drilling (indexing cylinder)

5/2 way solenoid directional control valve for drill feed

Limit switch