With a gauge ruler, also called a cashthal tape.It uses the rack to drive the gear to drive the pointer to display the value. There is a general scale on the main ruler, combined with the reading number of the indicator table, which is faster and more accurate than the number of calibration card ulnar readings.
How to use with a gauge ruler
1. Wipe the lantern ruler before use, then pull the ruler frame. Sliding along the ruler should be flexible and stable.Fixing the number of fixed screws should not change.2. Check the zero position.Gently push the ruler frame to make the measurement of the two measurement claws together. Check the contact of the two measurement surfaces. There must be no obvious light leakage, and the dial pointer is pointed to "0".Essence3. During the measurement, slowly push and pull the ruler frame by hand to gently contact the surface of the measured paw with the surface of the measured parts, and then gently shake the beef ruler to make it contact well.When using a label kaki ulnar, there is no force measurement mechanism, and the authors feel is mastered by the operators feel.4. When measuring the size of the shape, first open the kwer kwed claws to enable the workpiece can be freely put between two measured claws, and then attach a fixed amount of claws on the work surface. Use the hand to move the ruler frame.Make the activity claw close to the surface of the workpiece.Note: 1. During the measurement, the noodles and paws at both ends of the workpiece must not be tilted.2. During the measurement, the distance between the measuring claws is less than the size of the workpiece, and the weight claw card is forced to the part.5. When measuring the inner diameter size, separate the measuring claws of the two knives and less than the measured size. After putting it in the measured pores, the measuring claws in the ulnar frame can be tightly contacted on the surface of the workpiece.reading.Note: The measuring claws of the cashmere bethell should be measured at the diameter position of the two ends of the workpiece, and shall not be skewed.6. There are many shapes for measuring the measurement surface of the cricket ruler.During the measurement, it should be correctly selected according to the shape of the measured parts.If the size and the size of the shape should be measured, the peripheral capacity should be used; if the internal diameter is measured, the internal capacity should be measured; if the depth is measured, the depth ruler should be used to measure.7. When the reading is read, the cloak ruler should be held horizontally, so that the sight is facing the surface of the scale line, and then carefully confirms the position according to the reading method in order to read out, so as not to cause the reading error due to the incorrect line of sight.
Card ruler repair
There are two small gears and a small gear axis inside the table stall, on the dial.When the gear strip is installed on the main ruler, the dial cannot be directly pressed on the main ruler with the two small gears with the gear strip.If there is no pre -tightening force, the pointer will loosen the installation method left and right after the installation: first fix the small gear behind it (sandwiched with a gardenia). At this time, turn the small gear in the front of the small gears clockwise, and you will find the small gear in frontWill turn around, this is the pre -tightening force.You must not let him turn around, and the small gear behind will never rotate.In this way, the two gears are quickly meson with a pre -tightening state.Put the dial out of the back end of the main ruler, as if two small gears are rolled in along the rack.
How to read with a gauge ruler
1. Read an integer on the main ruler, such as 10mm.2. Read the decimal on the dial.Each small grid represents 0.02mm, and the 5 small grids are 0.1mm, which is the number on the dial.After reading the number first, the first small value after the decimal point, such as 5, 0.5; the number of small grids after adding the number*2 is the second small value, such as the third small grid, for example, the third small gridThat is 0.06.3. Finally, add up all the numbers, such as the first half of the 10.56mm dial and the rear half of the half, just look at the numbers.

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