Threaded plug, plug smooth, trapezoidal thread plug gauge

Thread plug gauge to measure the internal thread size of the correctness of the tool. This plug types can be divided into ordinary coarse teeth, fine teeth, and pipe thread three. Pitch of 0.35 mm or smaller, two precision and accuracy higher than two threaded plug, and a pitch of 0.8 mm or smaller three precision thread plug gauge not only end the probe. 100 mm below the threaded plug to taper threaded plug. 100 mm or more was double handle threaded plug smooth plug is a precision measuring tools for measuring workpiece dimensions, smooth plug made of the maximum limit of size and the minimum size limit of two. Its minimum size limit is called an end through the end, the maximum limit is called the toe end of the size in the measurement plug gauges should pass through the path, and the rules should not only end plug through the trails. Rational use of smooth plug: 1, check the plug before use measuring surface, you can not have rust. Pi-Feng, scratches, spots, etc; plug flag should be properly understood. 2, the role of plug must be periodic verification period, and with verification certificate or mark, or other regulation is qualified enough to permit 明塞 file. 3, the standard conditions of plug measurement: temperature of 20 ° C, the load is zero. In actual use conditions it is difficult to achieve this requirement. In order to reduce measurement error, try using a feeler gauge to measure the DUT under isothermal conditions, the use of force should be as small as possible, do not allow the plug into the hole hard push or push in while being rotated. 4, measurement, plug the hole axis should follow the insertion or removal, do not tilt it; plug inserted into the hole, and not to turn or shake plug. 5, do not allow dirty workpiece plug detection. Smooth plug is used to measure the workpiece precision measuring pore size. Smooth plug can be made of the maximum limit of size and the minimum size limit of two kinds. Its minimum size limit is called an end through the end, the maximum limit is called the toe end of the size commonly used form of plug as shown, plug the two have a cylinder, one end of the cylinder through the end of the long and short end of the cylinder Until the end. Check the workpiece, the workpiece should be qualified and can not pass through the terminal end-stop.