The reading method of the micrometer caliper, the reading method of the micrometer

1) Read the integer first. If you look at the exposed part of the number on the fixed sleeve on the left side of the differentiation, then it is the integer part of the measured part size. 2) Read decimals.

See which notch of the micrometer cylinder is aligned with the axial notch on the fixed sleeve. First read the reading, and then see if the half-tick (tick) is exposed, if the half-tick is not exposed, then the tick reading just read is the decimal number; If the half-tick mark is exposed, then add as a decimal in millimeters (the decimal part). When reading, pay attention to whether the engraved line is exposed, otherwise you will read less or more.

3) The sum of the two readings (adding the whole number and the decimal part) is the micrometer reading. Diagram 4-10a reading: the value (integer part) exposed by the fixed sleeve is 5mm, and the value aligned by the notch line of the differential cylinder is 5mm, and the notch line is not exposed, and the reading is recognized as 5mm.

Diagram 4-10b reading: The fixed sleeve is exposed at 5 mm, and the value aligned with the notch of the differential cylinder is that the notch is exposed, so the reading is 5 mm

How to use: Before use, the two measuring surfaces should be wiped clean. When rotating the force measuring device, the differential cylinder should rotate flexibly and there should be no stagnation.

Zero-bit proofreading. Rotate the force measuring device so that the two measuring surfaces come into contact. First of all, check the contact status of the measuring surface, and there should be no light leakage.

At the same time, the engraving line of the parts on the micrometer should be aligned with the downward longitudinal engraving line of the fixing sleeve. The measured parts should be cleaned before detection, otherwise it will not only affect the measurement accuracy, but also easily damage the measuring surface of the micrometer. It is strictly forbidden to measure rough surfaces or surfaces with abrasives with micrometers.

When measuring, the measuring rod should be rotated with a force measuring device to maintain the standard measuring force. Generally, after the rotating measuring rod is screwed to the part position, there will be three "click" sounds, and it is not allowed to directly squeeze the surface of the workpiece directly on the rotating micrometer by hand. When measuring, the ruler frame can be gently shaken while rotating the force measuring device, so that the measuring surface is in good contact with the surface of the part, and the axis direction of the measuring rod is consistent with the direction of the measured size, so as not to cause errors during measurement.

When reading, it is best to read directly on the part so as not to wear out the measuring surface when removed. If it is necessary to remove the reading, the brake should be pulled off and the micrometer should be gently removed from the part. Note:

Don't forget to distinguish the indicator values when reading.

<>1. Micrometer can also be called spiral micrometer, spiral micrometer, centimeter card, is a precision measuring tool, divided into mechanical micrometer and electronic micrometer, can be accurate, by the drill, micrometer, locking device, fixed sleeve, micrometer cylinder and ratchet and other components.

2. Before use, the zero point should be checked: the leading edge of the cylinder is aligned with the horizontal line, and the baseline of the spindle scale is aligned with the zero line of the cylinder.

3. When measuring the object: first rotate the ratchet to adjust the distance between the measuring drill and the micrometer screw to slightly larger than the size of the object, then put the measured object into it, and slowly rotate the ratchet until it makes a clicking sound before starting to read.

4. When reading: read the fixed scale first, then read the half scale, if the half scale line has been exposed, record it, if the half scale line is not exposed, record it, and then read the movable scale (pay attention to the estimate). It is denoted as n times, and the final reading result is a fixed scale + half scale + movable scale.

5. Note: The main micrometer ruler is 1mm per grid, and the micrometer cylinder is 1mm per grid. When reading, pay attention to the perpendicular line of sight to the scale, otherwise there will be an error.

Micrometer reading method: first take the end face of the differential cylinder as the line, read out the graduation value of the scale mark under the fixed sleeve (only read the integer in millimeters), and then take the horizontal horizontal line on the fixed sleeve as the reading guideline, read out the index value on the movable scale, and estimate the reading to one-tenth of the minimum scale, that is, millimeters.

It works by rotating a very precise screw to measure the distance it travels axially. The pitch of the screw (the axial distance between any two adjacent teeth) is millimeters. That is, the casing rotates once and moves axially by millimeters.

The circumference of the casing is divided into 50 grids, so each grid is millimeters, that is, its measurement accuracy.

Micrometer measuring principleAccording to the principle of spiral motion, when the micrometer cylinder (also known as the movable scale cylinder) rotates one round, the micrometer screw advances or reverses one pitch of 0 5 mm. Thus, when the cylinder is rotated by one index, it turns 1 50 times, at which point the screw moves 1 50 0 5 mm = 0 01 mm along the axis, so that the value of 0 01 mm can be accurately read using a micrometer.

The micrometer Takayama tung reading method is as follows:

1. Check the zero point before use: the leading edge of the cylinder is aligned with the horizontal line, and the baseline of the spindle scale is aligned with the zero line of the cylinder.

2. When measuring the object: first rotate the ratchet to adjust the distance between the measuring drill and the micrometer screw to slightly larger than the size of the object, and then put the measured object into it, and slowly rotate the ratchet until it makes a clicking sound before starting to read.

3. When reading: read the fixed scale first, then read the half scale, if the half scale mark has been exposed, record it, if the half scale mark is not exposed, record it, and then read the movable scale (pay attention to the estimated reading). It is denoted as n times, and the final reading result is a fixed scale + half scale + movable scale.

4. When reading: read the fixed scale first, then read the half scale, if the half scale line has been exposed, record it, if the half scale line is not exposed, record it, and then read the movable scale (pay attention to the estimate). It is recorded as n times, and the final reading result is fixed tick + half scale + movable scale.

The main ruler of the 5 micrometer is 1mm per grid, and the differential cylinder is 1mm per grid. When reading, it should be noted that only the line of sight is perpendicular to the scale, otherwise there will be an error.

Spiral micrometer, also known as micrometer (micrometer screw), spiral micrometer, centimeter card, is a more precise tool for measuring length than vernier caliper, and it can be used to measure the length accurately, and the measurement range is a few centimeters.

A part of it is machined into a thread with a pitch of the pitch, and when it rotates in the screw sleeve of the fixing casing B, it moves forward or backward, and the movable casing C and the screw rod are connected as a whole, and its periphery is equally divided into 50 sub-grids.

The number of turns of the screw rotation is measured by the engraved lines at intervals on the fixed casing, and the part that is less than one turn is measured by the engraved lines around the movable casing, and the final measurement result needs to be estimated to one decimal place.

The reading of a micrometer caliper is divided into two parts, the main section and the movable scale.

1. Read the fixed scale first, and then read the half scale, if the half scale in the fixed scale has been exposed, it will be recorded; If the half-tick mark is not exposed, it is recorded as ; This is the reading of the main degree.

2. Then read and then read the movable scale (pay attention to the estimation). denoted as n;

3. The final reading result is fixed scale + half scale + movable scale + estimated reading.

1. The reading of the ordinary outer diameter micrometer is relatively simple, the differential sleeve is evenly engraved with a division of 50 around the week, and the pitch of the differential screw is generally, so its index value is. The millimeter scale is on the fixed sleeve, and each engraving is pinned. Thus, the whole number greater than is read on the fixed sleeve, and the reading less than is read out on the differential cylinder.

2. The reading mechanism of the micrometer with vernier and the vernier caliper is basically the same, the large number is read from the main ruler of the micrometer and the fixed sleeve and caliper, and the decimal part depends on the alignment of the first vernier indexing line with the index line or the main marking line.

The measuring method of the micrometer.

Before measuring the object, first wipe the surface of the measuring object, then rotate the ratchet to adjust the distance between the measuring drill and the micrometer screw to be larger than the measured object, and then put the measured object.

When the micrometer screw is placed close to the object to be measured, and the ratchet wheel is slowly rotated until it clicks, the indicated value at this time is the size of the measured object.

After completing the reading of the object to be measured and recording, put down the micrometer cylinder and remove the micrometer.

After using the micrometer, wipe and clean the micrometer, and then put it in the box for storage, avoid heavy pressure and bending of the micrometer, and the micrometer drilling and micrometer screw should not be in contact, so as not to affect the micrometer measurement accuracy.

Reading method. 1. Read out the whole millimeter of the measured object in the fixed sleeve interval of the micrometer.

2. When reading the half-scale of the measured object, if in the fixed sleeve interval, after the whole scale is read, the half-scale is exposed, the reading is recorded; If the half-scale is not exposed, the reading is recorded as.

3. Read out the scale value aligned by the fixed sleeve longitudinally from the differential cylinder, which refers to the decimal part of the measured object (a few hundredths of a millimeter), less than one grid (a few thousandths of a millimeter), which can be used to determine the estimation method.

4. Finally, the sum of the two readings is the scale size of the measured object, and the final reading formula can be: the actual size of the measured object = fixed scale of the fixed sleeve + half scale + differential cylinder scale + estimated reading.

I'll show him this, I'll talk to you

There are scales on both the ruler and the vernier ruler. Take a vernier caliper accurate to 0 1 mm as an example, the minimum division on the ruler body is 1 mm, and there are 10 small equal divisions on the vernier ruler, with a total length of 9 mm, and each division is 0 9 mm, which is 0 1 mm different from the minimum division on the main ruler. When the measuring claws are brought together, the ruler body and the zero scale mark of the vernier are aligned, and their first tick mark is 0 1 mm apart, and the second tick mark is 0 2 mm apart,......The 10th tick mark is 1 mm apart, i.e. the 10th tick mark of the vernier is exactly aligned with the 9 mm tick mark of the master ruler.

When the linearity of the object measured between the measuring claws is 0 1 mm, the vernier ruler should be moved to the right by 0 1 mm. At this point, the first tick line is exactly aligned with the 1 mm tick mark on the ruler. Similarly, when the fifth tick mark of the vernier is aligned with the 5 mm tick mark of the ruler body, it means that there is a width ,...... of 0 5 mm between the two measuring jawsAnd so on.

When measuring a length greater than 1 mm, the whole number of millimeters should be read from the tick mark opposite the "0" line of the vernier body.

When reading, the integer of millimeters is read on the ruler body based on the vernier zero tick mark, that is, the integer part in millimeters. Then look at the alignment of the first few tick marks on the cursor with the tick marks of the ruler body, if the 6th tick mark is aligned with the ruler body tick marks, the decimal part is 0 6 mm (if there is no line that is exactly aligned, then take the line closest to align Sun Shen's shirt for reading) blind ridge. If there is a zero error, the above result is subtracted from the zero error (the zero error is negative, which is equivalent to adding a zero error of the same magnitude), and the reading result is:

l Integer part Decimal part Zero error.