Machinery Division and Gear Mechanisms Explained

Different Machines Divided

Simple Splitter Device

A simple splitter device utilizes a universal circular table attached to a division mechanism.

Division Procedures

Procedures include simple, compound, and differential methods.

Worm Gear Mechanism

The worm is a device that transmits motion between shafts that are at right angles.

Worm Gear Features

• Irreversible: Suitable for large reductions.
• High Cost.
• Motion passed at right angles.

Corona Gear

A corona gear is a gear in which teeth are inclined at an angle, similar to a propeller. There are two types: helical and jagged (herringbone).

Employment and Eccentric Cam

Cams are used when you need to transform circular motion. The eccentric cam types include:

• Rectilinear or oscillating flat plate.
• Drum type.
• Simple cam and multiple types.

Types of Milling Operations (Strawberries/Cutters)

Milling involves machining and milling tooth profiles. Operations include:

• Cutting grooves in males with a dircular convex profile.
• Strawberry focusing strictly with the hole, giving the corresponding depth.

Special Milling Work

This includes circular milling, boring, slotting, hobbing, carved, and beveling.

Milling Machine Classification

Conventional types include:

• Vertical milling machine.
• Horizontal milling machine.
• Tooling and copier machines.

Parts of Boring Drill Movements

Movements involve the tip, body, longitudinal, cross shaft, and rotation capping.

Boring and Milling Work

Work performed includes boring, milling, taper threading, bench work, and uprights.

Slotting Machines Parts

Key components are the tool-slide, upper carriage, and cross table.

Machining Work Conditions

Conditions affecting machining include: speed, refrigeration, lubrication, cutting force, short cutting power, and machining time.

Grinding Work

Types of grinding include: cylindrical grinding (interior, exterior, conical), profiling, planeado (planing), angular, and circular grooves cut.

Grinding Movements (MOV)

These involve the progress of the piece, piece rotation, penetration (rectilinear, tangential, and frontal).

Grinding Head Types

Grinding heads include the fixed head and swinging head.

Grinding Factors for Selection

Factors influencing grinder choice:

• Grain size.
• Degree of hardness.
• Structure.
• Bonded material.

Cylindrical Grinding Progress

This involves tangential grinding.

Grinding Systems

Systems include front surface grinding.

Piece Fixing Systems

Fixing methods are tangential and frontal air points, and mixed systems.

Lapping

Lapping provides the best finish, leaving a mirror-like surface. It is used when friction reduction is desired.

General Grinding Types

General grinders include: universal, horizontal, and those without special facilities for threads, gears, or cams (universal grinder).