Introduction to shaper machine,its parts,basic working principle and Quick-Return mechanism

Welcome to mazurek_gravity. Thanks for visiting us.This video is on Twist Drill.
Subscribe this channel for latest update.
   / @mazurekgravity  

#Shaper Machine

The Shaper Machine is a reciprocating type of machine tool basically used to produce Horizontal, Vertical or Inclined flat surfaces by means of straight-line reciprocating single-point cutting tools similar to those which is used in lathe operation.

Working Principle of Shaper Machine:

A shaper machine is working on the following principle:

● A shaper machine holds the Single point cutting tool in ram and workpiece is fixed over the table.

● The ram holding the tool reciprocates over the workpiece and metal is cut during the forward stroke called a cutting stroke and

● No metal is cut during its return stroke is called an Idle stroke.

● The feed is given at the end of the cutting stroke.

● Generally, the cutting stroke is carried out at slow speed and the idle stroke is carried at high speed with the help of quick return mechanism.

Parts of a Shaper Machine with Function:

Base: The Base is designed to take the entire load of the machine tool and it is bolted to the floor of the shop.

This is made of grey cast iron to resist vibration and to take the compressive load.

Column: The column is a Box like casting made up of cast iron and mounted on a base.

It is provided with accurately machined guideways on the top on which the ram reciprocates.

The guideways are also provided on the front vertical face for the movement of cross rail. The column encloses the ram driving mechanism.

Cross rail: The cross rail is mounted on the ground vertical guideways of the column.

It consists of two parallel guideways on its top perpendicular to the ram axis is called as a saddle to move the table in crosswise direction by means of a feed screw.

The table can be raised or lowered to accommodate different sizes of the job by rotating elevating screw which causes the cross rail to slide up and down on the vertical face of the column.

Saddle: It is mounted on the cross rail to hold the table firmly on its top.

The crosswise movement of the saddle causes the table to move crosswise direction by rotating the crossfeed screw.

Table: It is mounted on the saddle.

It can be moved crosswise by rotating the crossfeed rod and vertically by rotating the elevating screw.

The table is a box-like casting with accurately machined top and side surfaces. These surfaces having t-slots for clamping the work.

In Universal shaper, the table may be swiveled on a horizontal axis and its upper part may be tilted up or down.

In heavy Shaper, the front face of the table is supported by adjustable table support to give more rigidity.

Ram: It is a reciprocating member of the shaper which holds the tool and the reciprocates on the guideways on the top of the column by means of quick return motion mechanism.

It houses the screwed shaft for altering the position of the RAM with respect to the work. The RAM is in semi-cylindrical form and heavily ribbed inside to make it more rigid.

Tool Head: The tool head holds the cutting tool firmly and provides both vertical and angular movement to the tool with the help of a down feed screw handle.

The head allows the tool to have an automatic relief during the return stroke.

The vertical slide of a tool head consists of a swivel base which is graduated in degrees. So, the vertical slide can set at any angle with the work surface.

The amount of feed or depth of cut may be adjusted by a micrometer dial on top of the down feed screw.

A tool head again consists of:

●Apron
●Clapper box and ●Clapper block

Apron consisting of clapper box and tool post is clamped on the vertical slide by the screw.

The apron Can be swiveled upon the apron swivel pin towards left or right.

The clapper box houses the clapper block by means of a hinge pin.

The tool post is mounted on the clapper block.

Specification of Shaper Machine:

●The maximum length of stroke ram.
Types of the drive ( Crank, Gear and Hydraulic type)
●Power input of the machine
●Floor space required to establish the machine
●Weight of the machine in tonne.
●Feed
●Cutting to return stroke ratio.
●Angular movement of the table.


◆ For more information on these topic you may contact us on :

Facebook Page:
https://m.facebook.com/mazurekgravity...

INSTAGRAM:

#SazidAsadAhmad -   / sazidasadahmad  

#TuntunKumarGoit -   / imtuntunyadav  

TWITTER:   / sazidahmad84  

BLOGGER: https://sazidasadahmad.blogspot.com/?m=1

FACEBOOK:   / sazidahmad84  

Telegram:
https://t.me/mazurekgravity

Whatsapp : +917979766525