AUTOMATIC FEED CNC PNEUMATIC DRILLING MACHINE

The pneumatic system has gained great importance in recent decades. This importance is due to its precision and cost. This convenience in operating the CNC pneumatic system made us design and manufacture this unit as per our design.
This unit, as we expect, can be operated easily with semi-skilled operators. The automatic feeding CNC pneumatic punching machine has the advantage of working at low pressure, that is, even a pressure of 6 bar is enough to operate the unit. The pressurized air passing through the tubes into the cylinder forces the piston out, the power of which through the joint is transmitted to the punch. The workpiece thus obtained is to the required dimensions and the workpiece can be collected through the earth gap provided in the die. The matrix used in this is fixed in such a way that the matrix of the required format can be used as per the requirement. This allows us to use different types of punch dies, resulting in a wide range of products. Different types of punch as per requirement can be obtained. According to the working material, the operating pressure can be varied.

INTRODUCTION

The press is the punching machine tool designed to punch letters by applying mechanical force or pressure with the help of a computer. The metal is drilled as per the desired requirement. Presses are intended exclusively for mass production and represent the fastest and most efficient way to transform a metal into a finished punched product. Press tools are used to form and cut thin metals. The operation of pressing tools can be simplified to a few simple operations involving punch and die.
There are types of Nemours presses in the engineering field, which are used to meet the requirements. We are interested in introducing the pneumatic system in presses. The main function of the machine is to form or cut thin metal or non-metal sheets using pneumatic energy. In this project, we use punching process for simple application.

WORK OPERATION

Compressed air from the compressor at a pressure of 5 to 7bar is passed through a tube connected to the solenoid valve with an inlet. The solenoid valve is activated with the help of the computer. The solenoid valve has two outlets and one inlet.

AUTOMATIC FEED CNC PNEUMATIC DRILLING MACHINE

The air that enters the inlet exits through the two outlets when the computer control signal is activated. Due to the high air pressure at the bottom of the piston, the air pressure below the piston is greater than the pressure above the piston. So, this moves the piston rod upwards, which increases the effort, which is rotated by the computer unit. This acting force is passed on to the punch, which also moves downwards.

The punch is guided by a fixed punch guide so that the punch is clearly guided into the die. The materials are between the punch and the die. Thus, as the punch descends, materials are cut to the required punch profile and the blank is moved downward through the die gap. When the piston is at the extreme point of the stock's length, the exhaust valve is opened and air is expelled through it and the pressurized air enters the top of the piston and pushes the piston down. Thus, one side of the air is pulled down and the other side is lifted up. Therefore, the punch is pulled upward from the die. Now the piston reaches the lower point of the required stroke length. Now the material is fed and the next piston stroke is ready. When the material is correctly positioned, this machine is automatically activated again. The duration of the next drilling is adjusted with the help of the computer.

ADVANTAGES AND APPLICATIONS

1. The great advantage of the pneumatic system is the control valve that consistently applies a specified load with minimum effort.
2. From thin sheets to metal sheets can be punched into desirable shapes.
3. It can be modified to any extent to increase the effort required.
4. Its result can be properly used in the wide mechanical field.
5. Various cylinder systems can be driven according to the need for pressure effort.
6. In modern payer plants, this pneumatic system can be used to load press rolls.
7. Simpler construction than mechanical and hydraulic presses.
8. Compared to hydraulic and mechanical presses, pneumatic press is economical.
9. No current-carrying cables required.
10. No extra skills are required to operate this system.
11. The operation is very smooth and in this system we can obtain more results by applying less effort.
12. This system can be used effectively for punch marking on industrial materials, such as industry name, address or product number.

LIMITATIONS

Hard and thick materials cannot be drilled

Maintenance will be higher due to the number of moving parts.

The stroke length is fixed.