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Pneumatic hole punching helps to make the hole in sheet metal by using Compressed Air. Pneumatic actuators controlled energy to the punch , so the Operator needs to provide only modest effort regardless of conditions. Pneumatic Punching machine helps to make hole in Various size by changing tool. As well, pneumatic Punch provides some feedback of forces acting on the Sheet and Hole can Made in Sheet metal.

Pneumatic Hole punching machine is reduce Effort To Operator. Operator Need Very Less amount of effort.
Pneumatic hole punching machine operated by compressed Air. Pneumatic clamp have pneumatic Cylinder, 5/2 Flow control Hand Lever valve


USEFULLNESS OF THE PROJECT.

This Machine can Be Used many Application Can Be used In Many Industries Applications. It Operated by compressed Air.

It Simple Method , It is Used To Special sheet metal .
Some Industries. It can Operate Low Skilled Operator.
It Provide smooth Action To Work To make hole
It Can provide Flexibility to change sheets.
It Also Low cost compare with others.
TYEPE OF PUNCHING MACHINE
Flywheel drive
Most punch presses today are hydraulically powered. Older machines, however, have mechanically driven rams, meaning the power to the ram is provided by a heavy, constantly-rotating flywheel. The flywheel drives the ram using a Pitman arm. In the 19th century, the flywheels were powered by leather drive belts attached to line shafting, which in turn ran to a steam plant. In the modern workplace, the flywheel is powered by a large electric motor.
Mechanical punch press
Mechanical punch presses fall into two distinct types, depending on the type of clutch or braking system with which they are equipped. Generally older presses are "full revolution" presses that require a full revolution of the crankshaft for them to come to a stop. This is because the braking mechanism depends on a set of raised keys or "dogs" to fall into matching slots to stop the ram. A full revolution clutch can only bring the ram to a stop at the same location- top dead center. Newer presses are often "part revolution" presses equipped with braking systems identical to the brakes on commercial trucks. When air is applied, a band-type brake expands and allows the crankshaft to revolve. When the stopping mechanism is applied the air is bled, causing the clutch to open and the braking system to close, stopping the ram in any part of its rotation.

Hydraulic punch press
Hydraulic punch presses, which power the ram with a hydraulic cylinder rather than a flywheel, and are either valve controlled or valve and feedback controlled. Valve controlled machines usually allow a one stroke operation allowing the ram to stroke up and down when commanded. Controlled feedback systems allow the ram to be proportionally controlled to within fixed points as commanded. This allows greater control over the stroke of the ram, and increases punching rates as the ram no longer has to complete the traditional full stroke up and down but can operate within a very short window of stroke.
Servo drive turret punch press
Servo drive turret punch press uses twin AC servo drives directly coupled to the drive shaft. This drive system combines the simplicity of the original clutch and brake technology with the speed of the hydraulic ram driven systems. This results in high performance, reliability, and lower operating costs. Servo drive press system doesn't have complex hydraulics and oil-cooling chillers reducing maintenance and repair costs. Turret press can be equipped with an advanced technology that stores and reuses energy generated during ram deceleration, providing extended electrical power savings