Wk 2 And 3 Flashcards
This production aim at high productivity to reduce unit cost and interchangeability to facilitate easy assembly.
Mass Production
- is a work holding tool which locates the workpiece in proper position and holds it securely for drilling for the purpose of duplicating productions.
Jig
- is a device used to guide the cutting tool or the twist drill in production runs.
Bushing
– a part that houses or mainly supports the subject.
Jig body
- a part that supports the subject together with the clamping device.
Jig Cover
– a part that prevents or secures the jig from moving on the drill table.
Clamping device
– a part that guides the twist drill to eliminate replacements of parts where bushings are installed.
Bushing
– a part that locates the positions of holes or of the subject on the device.
Locating points
– also called plate jig or drill template
The simplest type of drill jig
Open Jig
– precision tools that guide cutting tools such as drills and reamers.
Drill bushing
– inserted to lock or hold the workpice.
Locking pins
TEMPLATE JIG:
A template jig is primarily used for guiding the cutting tool during machining operations, such as drilling, milling, or routing. It provides a template or pattern for the tool to follow.
Function
A template jig consists of a template or pattern made from hard material (e.g., metal, plastic, or wood) with the desired shape or pattern cut or formed into it. The workpiece is placed beneath the template, and the cutting tool follows the contours of the template to create the desired features on the workpiece.
Design of template Jig
Template jigs are often used for creating complex or irregular shapes on workpieces. They are commonly employed in woodworking, metalworking, and industries where precise and custom shapes are required.
Application of Template Jig
Template jigs are less versatile than plate jigs because they are designed for specific shapes and are not easily adjustable for different workpieces or machining operations.
Versatility of template jig
Template jigs are less versatile than plate jigs because they are designed for specific shapes and are not easily adjustable for different workpieces or machining operations.
Versatility of template jig
A plate jig, also known as a fixture plate or machining fixture, is designed to hold and secure workpieces in a specific position for machining operations. It provides support, alignment, and clamping for the workpiece.
Function of plate jig
A plate jig typically consists of a flat, rigid plate with various fixtures, clamps, and locating pins. It allows for the precise positioning of the workpiece on the plate to ensure accurate machining. Plate jigs are more versatile than template jigs because they can be adapted to hold different workpieces and accommodate various machining operations.
Design of plate jig
Plate jigs are commonly used in manufacturing and machining processes where high precision and repeatability are required. They are suitable for operations such as drilling, milling, grinding, and assembly.
Application of plate jig
Plate jigs can be easily adjusted or modified to accommodate different workpiece sizes, shapes, and machining requirements. This makes them ideal for mass production and batch machining.
Adjustability of plate jig
