Locating devices are
electronic tools that can be used to follow a person's movements or to identify a person's location
. No device or system can guarantee that a person with Alzheimer's disease will not become lost or that they will be found.
Why locating devices are necessary?
They provide equal support through two connected contact points. As one point is depressed, the other raises and maintains contact with the part. This feature is especially necessary on
uneven cast surfaces
. Locating a part from a hole or pattern is the most effective way to accurately position work.
What is locator in jig and fixture?
LOCATING METHODS AND DEVICES Locators are
those parts of a jigs or fixture which helps a work piece to seat in proper position in it
. Depend upon type of work, locators are designed . The various locating devices and methods are shown in next.
What are the types of V locator?
The two basic styles of vee locators are
the vee pad and the vee block
, Figure 7-18. Vee locators have many applications, as shown in Figure 7-19. The vee accurately locates and centralizes a round workpiece, or a workpiece with radiused ends.
What is the use of locator devices?
Dinesh Kumar Department of production and Industrial Engineering NIT Jamshedpur Page 2 Important Points to remember • Locators:
Device that establishes correct relative position of workpiece w.r.t. the cutting tool
. Fixture: A device that is used to hold the w/p firmly and accurately to perform a machining operation.
What is the purpose of jig?
a jig is a type of tool used to control the location and/or motion of another tool. A jig's primary purpose is
to provide repeatability, accuracy, and interchangeability in the manufacturing of products
. A device that does both functions (holding the work and guiding a tool) is called a jig.
What is the function of locator in jig?
The primary function of any locator is
to reference the workpiece and to ensure repeatability
. Unless the locators are properly positioned, however, these functions cannot be accomplished. When positioning locators, both relative to the workholder and to the workpiece, there are a few basic points to keep in mind.
What is best method to locate a rough surface?
It is advisable to use
equalizers or adjustable rest pins
to compensate the irregularity of surface. Fig shows two v-block locators, one is fixed, and other is movable (sliding v-block). ‘V' with an angle 90° is the most commonly used v-block in jig and fixture.
What are locating pins?
Locators. Carr Lane precision locating pins can
be used to locate a workpiece on a fixture
, or to align two pieces of a fixture. One round fixture locating pin and one diamond pin are often used together to locate two holes without binding, because the diamond pin is relieved to locate in only 1 axis.
What is the difference between jig and fixture?
The Major Difference between Jig and Fixture is that
Jig is a type of tool used to control the location or motion of another tool
. Whereas Fixture is a support or work holding device used to hold work in place. In metal and woodworking, both jigs and fixtures are essential tools used.
Which of the following are examples of locator devices?
The typical locating devices used for jigs and fixtures are:
(2)
Adjustable locators
. (3) Locating pins. (4) Conical locators. (5) Diamond and pin locators.
What is principle location?
The 3-2-1 principle of location (six point location principle) is
used to constrain the movement of workpiece along the three axes XX, YY, and ZZ
. This is achieved by providing six locating points, 3 pins in base plate, 2 pins in vertical plane and 1 pin in a plane which is perpendicular to first two planes.
Why diamond pin is used in fixture?
One Round Pin and one Diamond Pin are
often used together to locate from two machined holes in a workpiece
, or to align two pieces of a fixture, without binding. Diamond pins are relieved, to locate only in 1 axis.
Which is the device that can hold locate and guide the tool?
Fixture:
Rf
is a work holding device that holds, supports and locate the work piece for a specific operation but does not guide the cutting tool. 1) Locators : For holding the component, the designer should select the proper locators.
What is conical locator?
Conical locators are
often used to locate holes with large diameter variations
. The main problem with using this type of locator is in the position of the workpiece relative to the workholder. The locating hole can contact the locator at any point on its conical surface.
What are clamping devices?
Clamping device are
used to minimize the distortion during the machining process
. Once the workpiece is located, it is necessary to hold it against the machining force. The mechanism used for this is known clamps. They are work holding devices usually positioned above the supporting surfaces.
