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Cursor readings measuring
Application cursor readout principle made of the amount with; vernier caliper, height vernier caliper, depth vernier caliper, Cursor Square (like Wan Energy Square) and the tooth thickness caliper, etc., used to measure the part diameter, diameter, length, width, thickness, height , depth, angle, and the tooth thickness, etc., wide range of applications.
A caliper of the structure type
Vernier caliper is a commonly used measuring tools, a simple structure, easy to use, accuracy and measurement range in size from medium and large features, you can use it to measure the part diameter, diameter, length, width, thickness, depth and pitch, etc., wide range of applications.
A vernier caliper, there are three structural types
(1) measurement range of 0 ~ 125mm of the vernier caliper, made with a blade-shaped upper and lower jaw and foot type with depth, as shown in Figure 2-1.
Figure 2-1 The structure type of vernier caliper
1 - ruler; 2-- on the jaw; 3 - foot frame; 4-- fastening screws; 5-- depth gauge; 6-- cursor; 7-- under the jaw.
(2) measurement range of 0 ~ 200mm and 0 ~ 300mm of the vernier caliper, inside and outside measurements can be made with the lower jaw and face with a blade-shaped claw on the amount of the type shown in Figure 2-2.
Figure 2-2 caliper of two types of structure
1 foot body; 2-on jaw, 3 foot box; 4 a fastening screw; 5 a micro-device;
6 a main scale; 7 a micro-nut; 8 a cursor; 9 - Next jaw
(3) The measurement range of 0 ~ 200mm and 0 ~ 300mm of the vernier caliper, but also can be made only with the external surface of the lower jaw measuring the type, as shown in Figure 2-3. The measurement range of greater than 300mm vernier caliper, only made this only under the jaw with the type.
Figure 2-3 Structure of a vernier caliper of three types
2 caliper mainly consists of the following components
(1) has a fixed jaw of the ruler, as shown in Figure 2-2 1. Foot steel ruler who has a similar scale as the main scale, as shown in Figure 2-2 6. Main scale engraved on the line spacing of 1mm. Determined by the length of the main scale vernier caliper measurement range.
(2) has activity claw-foot box, as shown in Figure 2-2 3. Foot box with a cursor, as shown in Figure 2-2 8, the Vernier reading vernier caliper can be prepared as 0.1; 0.05 and 0.02mm three. Vernier reading, refers to the use of vernier caliper parts of this size, the caliper can be read on the minimum value.
(3) 0 ~ 125mm of the vernier caliper, but also with the depth of feet measured depth, as shown in Figure 2-1 of 5. Depth of the foot fixed in the foot box on the back, with the foot box can be the guide groove in the foot to move the body. Measurement depth, the ruler should be tight against the rear end part of the measurement in the base plane.
(4) is equal to and greater than 200mm measuring range of the vernier caliper, with the foot box with a micro-adjustment for the micro-device, as shown in Figure 2-2 5. Use, first with four screws fixed to the micro-device 5-foot body, and then turn the micro-screw
Mother 7, activity can be accompanied by claw-foot frame 3 for the small amount of forward or backward. The role of micro-devices, is to make the caliper measurement force in uniform, easy to adjust the measured pressure to reduce measurement error.
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