What is the working principle of dial indicator?
The working principle of the Dial Indicators is that the movement of the spindle multiplied with the reading of the main scale due to the indication of the needle. In addition to this, at the main scale rotation of pinions and gears is indicated.
What is dial indicator explain it briefly?
The Dial indicator is a mechanical mean, having gears and pinions or levers for magnification system. They can responses to linear measurements even when they are too small. When this Dial Indicator is used in any measuring equipment for comparison purpose then these equipment are called Dial Gauges.
What is the dial indicator used for?
Dial indicators are one of the primary measuring tools used in precision engine building. They are typically used to measure deck clearances, crankshaft thrust and straightness, lifter travel and other measurements that involve the distance between two surfaces or small amounts of component travel.
What are the two basic types of dial indicators?
In the most general sense, there are two types of indicators commonly used in shop environments: test indicators and drop indicators.
Which mechanism is used in dial gauge?
One common use for plunger dial indicators is to measure the work of injection molding machines. The mechanism which allows this type of dial indicator to work is a rack and pinion, which changes the linear thrust of the plunger into rotary motion for the dial.
How many types of dial indicators are there?
There are three basic things that differentiate them: The contact point probe (how the contact point moves) Inner dial scale (numerical markings and pointer direction) The working mechanism (mechanical or electronic)
What are the different types of dial indicators?
Types of Dial Indicators:
- Balanced reading dial indicator.
- Continuous Dial Indicators.
- Reversed Balanced Dial Indicators.
- Reversed Continuous Dial Indicators.
- Plunger Dial Indicator.
- Lever Dial Indicator.
What are the types of dial indicators?
Dial indicators are precision measurement instruments used to measure the alignment of a machine’s components or the general deviation of any object from an expected standard. They are named for their clock-like faces, which consist of numbers arranged in a circle which a dial points to.
How accurate are dial indicators?
The dial indication should be accurate to within + 1 graduation, at any point with 2.3 turns, i.e. the variation of the actual object size in relation to the setting master must be displayed by the pointer position on the dial with a maximum error of ± 1 graduation, at any position within 2.3 turns for effective …
What are the components of a dial caliper?
Terms in this set (15)
- External jaws. faces between which outside length or diameter is measured.
- Internal Jaws. the faces between which inside diameter or space width is measured.
- Step measuring jaws. the faces between which stepped parallel surface distance can be measured.
- Depth Blade.
- Blade Scale.
- Blade.
- Slider.
- Pointer.
What are the parts of a dial indicator?
Dial indicators are measuring devices designed expressly to measure relative position. The primary parts of a dial indicator are the face or dial, the case, and the plunger. The plunger is a spring loaded part that can be depressed into the case causing the dial to move clockwise. Dial Indicator Alignment basic 1
How to alignment your dial indicator with the plunger?
Dial Indicator Alignment Basics 1 Dial Indicator Alignment basic 1. The plunger is fully extended out of the case if no pressure is applied to it. 2 Quantifying the sag. 3 Measuring offset using dial indicators. 4 Measuring Angularity With Face Dial Indicators.
How are dial indicators used for shaft alignment?
For shaft alignment, we typically use dial indicators with 0.250″ – 0.300” total travel. The plunger moves a needle clockwise when pushed in and counter clockwise when let out. The face can be rotated so that the needle points to zero. The case is held by a clamp and holding rod which are, in turn, held by a jig or magnetic base.
Why are dial indicators used in mass production?
Due to small tolerances, the size of the tool is very compact and thus, it can be used seamlessly in mass production. Dial indicator is also useful in dimension control.