Sine gauge

A sine gauge is a measuring tool that uses the trigonometric method to measure angles.Generally used to measure parts with taper or angle.Because its measurement results are calculated based on the sine relationship of a straight triangle,it is called a sine gauge.

What is the structural composition of a sine compass?

It mainly consists of an accurate steel rectangular prism-the main body and two steel cylinders of the same diameter fixed at its two ends.The center distance between its two cylinders needs to be very accurate,and the distance L between the axis lines of the two cylinders is generally 100 millimeters or 200 millimeters.During work,the two cylindrical axes are strictly balanced with the main body and tangent to it.

What is the correct way to use a sine compass?

A sine gauge is a measuring tool that uses the trigonometric method to measure angles.Generally used to measure parts with taper or angle.Because its measurement results are calculated based on the sine relationship of a straight triangle,it is called a sine gauge,which can be called a sine ruler.It is a measuring instrument used in conjunction with a measuring block to form a standard angle according to the sine principle,and is used to measure the angle of the workpiece and the inner and outer cones in a horizontal direction by comparing them in a slightly different way.There are 0 levels of accuracy and 1 level.A gauge that uses sine to define the measurement of angles and tapers.It mainly consists of a steel rectangular prism and two steel cylinders of the same diameter fixed at its two ends.The distance L between the axis lines of two cylinders is generally 100 millimeters or 200 millimeters.In a right triangle,sinα＝H/L,where H is the size of the measuring block group,calculated based on the nominal angle of the measured angle.The error of the measured angle can be calculated based on the difference in the readings of the micrometer at both ends.Sine gauges are generally used to measure angles less than 45°,and when measuring angles less than 30°,the degree can reach 3"to 5".

What are the technical requirements for sine gauges?

All parts of the sine gauge should be demagnetized,and the main body and cylinder should be subjected to stability treatment.

The sine gauge should be able to be installed at any angle within the range of 0°to 80°,and its structural rigidity and strength of each component should be able to adapt to grinding working conditions.Each component should be easy to disassemble and repair.

The cylinder of the sine gauge should be fixed to the main body with screws and should not cause deformation of the cylinder and the main body;The tightened screws must not expose the cylindrical surface.The screw holes for fixing the cylinder on the main body shall not expose the working surface.

The working surface of the sine gauge shall not have defects such as cracks,scratches,slag inclusions that seriously affect the appearance and performance of use.

The hardness of the main working surface of the sine gauge shall not be less than 664HV,the hardness of the cylindrical working surface shall not be less than 712HV,and the hardness of the baffle working surface shall not be less than 478HV.

The maximum allowable value for the roughness Ra of the main working surface of the sine gauge is 0.08μm.The maximum allowable value for the surface roughness Ra of a cylindrical working surface is 0.04μm.The maximum allowable value for the surface roughness Ra of the baffle working surface is 1.25μM.