Slotting machine

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DEPARTMENT OF MECHANICAL ENGINEERING INDIAN SCHOOL OF MINES DHANBAD SEMINAR ON SLOTTING MACHINE Presented By Mr. AVINASH JURIANI M.tech-Manufacturing 14MT000354

Transcript of Slotting machine

Page 1: Slotting machine

DEPARTMENT OF MECHANICAL ENGINEERING

INDIAN SCHOOL OF MINES DHANBAD

SEMINAR ON SLOTTING MACHINE

Presented By

Mr. AVINASH JURIANI

M.tech-Manufacturing

14MT000354

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SLOTTING MACHINE

Basic features

• Vertical shaping machine where the

single point tool reciprocates

vertically

• Cutting on the downward stroke &

upward stroke being idle

• Work table specified for transverse,

longitudnal or rotary movement

• Longer stroke length

• Wide range of operations for internal

surfaces as splines, keyways & teeth

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SPECIFICATIONS OF SLOTTER

• Max. length of Ram Stroke

• Diameter of work table in mm.

• Type of Drive

• Maximum table travel.

• Power input

• Floor Space required

• Amount of longitudinal travel in mm

• No. of speeds available

• No. of feeds available

• Table feed

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PRINCIPAL PARTS OF SLOTTER

• Base

• Bottom most part

• Made of Cast Iron

• Column

• Vertically mounted on the base

• Has guide ways on which Ram slides

• Ram

• Reciprocating vertically up and down

• It carries Tool Head /cutting tool

• Tool Post

• It is attached to bottom end of ram

• Carries Tool post on it

• Table

• A circular casting with T-slots on its top

• Movement of table can be linear or rot

• Saddle

• It is mounted on guide ways of bed

• Using saddle longitudinal feed is given

• Cross slide

• Circular work-table is mounted on top.

• Using cross slide cross feed is given

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KINEMATICS OF SLOTTER

Steps

• Vertical slide reciprocated by

crank-connecting rod mechanism

• Quick return absent

• Intermittent rotation provided by

four bar linkage

• The work table rotated by feed

rod connected to worm-worm

wheel drive

• Working speed(number of

strokes per minute) can be

changed by belt pulley ratio/gear

box

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TYPES OF SLOTTER

PRECISION TOOL ROOM SLOTTER

Features

High speed operation

Precise work in tool roomsButler Precision Toolroom Slotter, 12" Capacity,Table Size: 24" Diameter, 19 - 75 Cycles per min

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PUNCHER SLOTTER PRODUCTION SLOTTERFeatures

• Machining Heavier jobs

produced by forging or stamping

Features

• Machining tapered jobs by ram

swivel to 10-30 degrees

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KEYSEATER

Features

• Special purpose slotter

• Cuts keyways in gears, pulleys, cams, etc.

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SLOTTER DRIVES

HYDRAULIC DRIVE

Features• Greater speed flexibility

• Smoother operation

• Stroke length can be adjusted

VARIBLE SPEED MOTOR DRIVE

Features• Multi Speed Arrangement

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SLOTTED DISC MECHANISM

Features

• Slotted disc rotated by pinion & gear drive

• Electric motor used

• Stroke length can be adjusted by varing pin eccentricity

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SP

EC

IAL

SL

OT

TE

RS

• Eccentric

slotter for

cardboards

• Heavy

duty gear

slotter

• Pipe slotter

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SLOTTER TOOLS

• Forged from solid tool steel bar, or

• In the form of tool bit held in the tool holder.

• Fig. shows square shank tool

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GLIMPSE OF SLOTTING MACHINES

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SLOTTING APPLICATIONS

• Internal recess of circular,

concave & convex surfaces

• To cut slots, splines, keyways

both internal external

• To machine internal &

external gears

• Internal machining of blind

holes

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ORIENTATION OF CUTTING PLANES IN

SLOTTING ACTION

• The cutting plane is perpendicular to the reference plane

• It is tangent to the velocity vector

• It is tangent at every point of cutting edge

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KEYSEATER USING PRECISION SLOTTER

Steps

• Check machine working in idle run

• Clamp work piece in vice of rotary table

• Run, after slot cut rotate table as required

• Unmount & check

Image Courtesy Daljit Machine tools ludhiana

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SCREW SLOT USING VIBRATING BOWL SLOTTER

Steps

• Screws placed on rotating bowl

• Screw aligner send screws to rotary aligner

• Rotary aligner feeds screw to Slot cutter

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REFERENCES

• https://engineering.myindialist.com/

• https://slottingmachineindia .com/

• General purpose machines module 2 IIT kharagpur

• A textbook of production technology by p.c. sharma

s.chand publications

• ITC shaper book USA