JSS3
Basic technology E_note
Week 1: revision of last term’s work
Week2: fault detection
_ Definition (trouble shooting)
_ tools for fault detection
Week3: basic electronics
_ Basic electronic devices
_Types of electronics devices
Week4: basic electronics (continues)
_components
_uses
Week5: machine motion
_ linear motion
_linear arrangement to produce linear motion
_use of slides and slots in mechanical system
Week 6: machine motion
_rotary motion
_one way
_reversible rotary motion
7_12 revision & examination.
Week 1 : revision
UPPLIERS MOTION AND CONTROLS LINEAR AND ROTARY MOTION COMPONENTS
Linear and Rotary Motion Components
Components used in the assembly of linear or rotary motion systems, such as ball screws, lead screws, slides, stages, and actuators.
What are you looking for in Linear and Rotary Motion Components?
Air Cylinders
Air cylinders are pneumatic linear actuators that are driven by a pressure differential in the cylinder’s chambers. They may be single-acting (with a spring return) or double-act
Ball Screws
Ball screws convert rotary motion to linear motion, or torque to thrust, and vice versa. They are primarily a power screw with a train of ball bearings riding between the screw and the nut in a recirculating track.Ball Slides
Ball slides are simple linear motion devices that provide smooth linear motion, accurately controlled by the rotation of
Ball Splines
Ball splines provide nearly friction-free linear motion while simultaneously transmitting torsional loads. The path of the bearing balls is straight, not helical, which allows for a very efficient coupling device suitable for a variety of applications. Search by Specification | Learn more about Ball Splines
Crossed Roller Slides
Crossed roller slides are simple linear motion devices that consist of a stationary base and a moving carriage. The rollers are crossed at a 90° angle in an alternating fashion and are enclosed in the rails, which have a machined V-shaped groove to support the roller
Dovetail Slides
Dovetail slides are linear motion devices that allow motion and positioning along a linear axis. Search by Specification | Learn more about Dovetail Slides
Electric Rotary Actuators
Electric rotary actuators drive components rotationally via electromagnetic power. They typically have control and indexing capabilities.
Feed Escapements
Feed escapements are used for individually feeding parts from hoppers, conveyors, magazines, tracks, and vibratory feeders.
Hydraulic Cylinders
Hydraulic cylinders are actuation devices that utilize pressurized hydraulic fluid to produce linear motion and force
Hydraulic Rotary Actuators
Hydraulic rotary actuators use a pressurized, incompressible fluid to rotate mechanical components.
Index Drives
Index drives are used to start and stop a table, conveyor or other equipment at precise intervals. Types of index drives include cam index drives, ring index drives, and roller gear i Screws and ACME Screws
Lead screws and ACME screws are used to drive a nut in linear motion via direct contact between the screw and the nut. Lead screws usually incorporate proprietary screw and nut geometries and materials, and can be configured in zero-ba Linear Actuators
Electric linear actuators have an output rod that provides linear motion via a motor driven ball screw, lead screw or ACME screw assembly. The actuator’s load is attached to the end of a screw
Linear Bearings
Linear bearings are used in applications where a component needs to be moved along a straight line withLinear Stages
Linear slides are simple linear motion devices composed of a stationary base and a moving carriage. Linear stages are slides with a drive mechanism that provide controlled, precise pos Multi-axis Positioning Systems
Multi-axis positioning systems make use of linear, rotary and goniometric stages, slides and drives in various combinations to create standard and custom positioning systems.
Piezoelectric Actuators
Piezoelectric actuators are devices that produce a small displacement with a high force capability whe
Pneumatic Rotary Actuators
Pneumatic rotary actuators use pressurized air to rotate mechanical components.
Rack and Pinion Drives
Rack and pinion drives use a rotational motor to affect linear motion via a rack and pinion combination. They are used frequently in long-travel applications, such as machine tool table positioning, that require high stiffness and accuracy.
Roller Screws
Roller screws convert rotary to precise linear motion in a similar manner to ball screws or lead screws. Due to the greater number of contact points of the rollers compared to balls or thread on thread contact, a roller screw
QUESTIONS
1.Give examples of machines that makes use of linear motion
2.mention 2 machines convert linear to rotary motion in their operations