How is the stroke length and ram position adjusted?

Stroke adjustment is done by varying the radius of the crank. Explanation: As per the mechanism of shaper. Depending upon the length of the job to be shaped, stroke length must be adjusted.

What is stroke length in shaper?

For a shaper, the length of stroke is 210 mm, the number of double strokes per minute is 32 and the ratio of return time to cutting time is 2 : 3. The cutting speed will be.

What is stroke in shaper machine?

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.

How does the length and position of stroke adjust in hydraulic shaper machine tool?

The majority of shapers contain a scale on ram by a pointer to point out the length of stroke. Stroke length is adjusted while the ram is in its excessive return place. It is generally set about 25mm longer than the length of work to be machined. Second adjustment is for position the tool.

How is feeding done on a shaping machine?

In a standard shaper, cutting of material takes place during the forward stroke of the ram and the return stroke remains idle. The return is governed by a quick return mechanism. The depth of the cut increments by moving the workpiece, and the workpiece is fed by a pawl and ratchet mechanism.

What is bull gear in shaper machine?

The bull gear is a large gear mounted within the column. The radial slide is bolted to the centre of the bull gear it carries a sliding block into which the crankpin is fitted. Rotation of the bull gear will make the crankpin to revolve at a uniform speed.

Which type of cutting parameters are there in shaper?

1. Which type of cutting parameters are there in shaper? Explanation: Feed, depth of cut, machining time all are cutting parameters. Apart from these, cutting speed and metal removal rate are also termed as cutting parameters.

What is the function of shaper?

A shaper is a type of machine tool that uses linear relative motion between the workpiece and a single-point cutting tool to machine a linear toolpath. Its cut is analogous to that of a lathe, except that it is (archetypally) linear instead of helical.

Which is the moving part of the shaper machine?

Ram: It is the main part of the shaper machine. It holds the tool and provides the reciprocating motion to it. It is made by cast iron and move over ways on column.

What is the use of shaper dog in a hydraulic shaper mechanism?

At the end of a forward stroke, the shaper dog hit against the reversing lever causing the valves to alter their positions within the valve chamber. Oil under high pressure is now pumped to the left side of the piston causing the ram to perform return stroke.