SHAPER MACHINE MECHANISM
- 1. MECHANISM OF SHAPER MACHINE
- 2. WHAT IS SHAPING MACHINE The shaping machine is a simple and yet extremely effective machine. It is used to remove material, usually metals such as steel or aluminium, to produce a flat surface especially where a large amount of metal has to be removed
- 4. SHAPER MACHINE MECHANISM The shaper machine is a reciprocating type of machine basically used for producing the horizontal, vertical or flat surfaces. The shaper holds the single point cutting tool in ram and workpiece is fixed in the table.During the forward stroke, the ram is holding the tool is reciprocating over the workpiece to cut into the required shape. During the return stroke, No metal is cutting. In the shaper machine, the rotary motion of the drive is converted into reciprocating motion of ram holding the tool.
- 5. Therefore in order to reduce the total machine time, It allows the ram holding the tool should move slower during forwarding cutting stroke and it comes faster in return stroke.
- 6. CLASSIFICATION BASED ON DRIVING MECHANISM Based on the type of driving mechanism. 1. Crank type shaper. 2. Geared type shaper. 3. Hydraulic type shaper.
- 8. Crank Type Shaper Machine These are very common types of shaper machines, which is using to hold the workpiece on the table. The tool is reciprocating in motion equal to the length of the stroke desired while the work is clamped in position on an adjustable table.In construction, the crank shaper employs a crank mechanism to change the circular motion of a large gear called “bull gear” incorporated in the machine to reciprocation motion of the ram.It uses a crank mechanism to convert the circular motion of the bull gear into reciprocating motion of the ram. The ram carries a tool head at its end & provides the cutting action.
- 10. Gear Type Shaper Machine In thsi typesof shaper machines, the ram is reciprocating. The ram is affecting due to reciprocating motion with the rack and pinion. The rack teeth are cut directly below the ram mesh with the spur gear.The speed and the direction in which the machine will traverse depend on the number of gears in the gear train. This type of shaper machines is not widely using in any industry.
- 12. HYDRAULIC SHAPER MACHINE In these types of shaper machines, the reciprocating motion of the ram is provided by the hydraulic mechanism. The Hydraulic shaper uses the oil under high pressure. The end of the piston rod is connected to the ram.The high-pressure oil first acts on one side of the piston and then on the other causing the piston to reciprocating and the motion is transmitted to the ram. The main advantages of this type of shaper machine are that the cutting speed and force of the ram drive are constant. From start to end of the cut without making noise and operates quietly.
- 14. QUICK RETURN MECHANISM A quick return mechanism is an apparatus to produce a reciprocating motion in which the time taken for travel in return stroke is less than in the forward stroke. It is driven by a circular motion source (typically a motor of some sort) and uses a system of links with three turning pairs and a sliding pair.
- 16. Applications Quick return mechanisms are found throughout the engineering industry in different machines: SHAPER SCREW PRESS POWER DRIVEN SAW REVOLVER MECHANISM