Micrometers and calipers are standard measuring tools commonly used as “sharp tools” to measure the plane and parallel features of workpieces or inner/outer diameters. However, when measuring workpieces with complex shapes, such as curved surfaces or narrow grooves, it may be challenging for standard universal measuring tools to accurately measure the required position.
To measure workpieces with complex shapes, it is more effective and economical to choose a special non-standard measuring tool.
1. Measurement of pipe wall thickness
1. A wall micrometer is recommended:
Reason: The cylindrical anvil can be used to measure the wall thickness in the pipe.
2. Pipe wall thickness calipers are recommended:
Reason: The measuring claw of the main ruler is cylindrical, which can accurately measure the pipe wall thickness.
3. Recommended pipe thickness table:
Reason: The anvil is at a 90 ° angle, which can measure the thickness of pipe wall or bending plate.
2. Measurement of pipe inner diameter
1. It is recommended to use an internal caliper:
Reason: The measuring claw is a knife edge type, which is used to measure the inside position that is difficult to measure.
The measuring jaws of the same series also have sharp claw type and internal groove type.
2. Caliper type inside micrometer is recommended
Reason: The caliper shaped measuring surface can realize the inner diameter measurement that cannot be realized by the universal micrometer.
3. It is recommended to use an inside diameter gauge:
Reason: The diameter of the bottom surface of the inner hole can be measured, and the inner diameter of the deep hole can be measured by connecting the extension rod.
3. Measurement of groove diameter
1. It is recommended to use a chip micrometer:
Reason: The measuring surface is thin, which can easily and accurately measure the diameter of narrow groove.
2. It is recommended to use thin caliper:
Reason: The front end of the measuring claw is thin, which can easily reach the measuring position of the narrow groove to complete the measurement.
3. It is recommended to use the blade type thickness table:
Reason: The front end of the measuring claw is in sheet shape, which can easily reach the measuring position of the narrow groove to complete the measurement.
4. Measurement of inner diameter with groove
1. It is recommended to use a groove micrometer:
Reason: The micrometer screw and anvil with flange can measure the relationship between the inner diameter of the groove and the depth and position of the groove in the pipe.
2. It is recommended to use hook vernier caliper:
5. Spline measurement
1. It is recommended to use spline micrometer:
Reason: Small diameter anvil is convenient for measuring the diameter of spline shaft and groove.
6. Outer diameter measurement of odd slot tap reamer
1. It is recommended to use V-shaped anvil
Reason: V-shaped anvil is suitable for measuring the outer diameter of taps, reamers and milling cutters with odd slots. A single needle can be used to measure the pitch diameter.
7. Measurement of plate center thickness
1. It is recommended to use a plate thickness micrometer:
Reason: The oversized ruler frame can easily measure the thickness of plates.
8. Measurement of common normal length
1. It is recommended to use a dial micrometer:
Reason: The disc anvil can go deep into the root of the tooth root, and is suitable for measuring the tangent length of the tooth root of straight cylindrical gears and helical gears.
9. Diameter measurement of gear ball
1. It is recommended to use gear outer diameter micrometer
Reason: Different replaceable spherical anvils – micrometer screw measuring surfaces can be selected to measure gears with different modules (0.5 – 5.25).
9. Measurement of effective diameter of thread
1. It is recommended to use thread micrometer:
Reason: The fixed anvil can measure 60 ° threads.
The effective diameter of the thread is read directly without calculation.
2. It is recommended to use the thread micrometer with replaceable anvil
The measuring surface of the optional replaceable anvil/micrometer screw corresponds to different thread measurements. This allows the effective diameter of the thread to be read directly, without requiring any calculations.
10. Measurement of hole center distance
1. It is recommended to use offset centerline caliper
Reason: With the offset value setting function, you can directly read the distance measurement value.
2. It is recommended to use center-center type back measuring claw offset caliper
Reason: With the offset value setting function, you can directly read the distance measurement value.
11. Measurement of single hole spacing
It is recommended to use the edge-center type back measuring claw offset caliper
Reason: The edge center measuring claw is suitable for measuring the distance between single holes, and there is a measuring claw on the back of the ruler frame to facilitate reading the measurement results.
12. Size measurement of irregular stenosis
Pointed jaw calipers are recommended:
Reason: The pointed claw type measuring claw can go deep into very small grooves or tracks, and easily measure the outer diameter, inner diameter, depth and segment difference.
13. Thickness measurement of stenosis
A pointed claw micrometer is recommended:
Reason: The tip radius of the anvil is about 0.3mm, which can be used to measure the wall thickness of drilling holes, small grooves, keyways and other dimensions that are difficult to measure.
14. Dimension measurement of offset position
It is recommended to use offset calipers:
Reason: The design of measuring claw with height difference is suitable for measuring step difference section and workpiece size that is difficult to measure.
15. Wall thickness measurement of concave
It is recommended to use a spherical anvil wall thickness micrometer:
Reason: The two measuring surfaces are spherical and can measure the wall thickness of the concave wall.
