SU1596207A1 - Method of determining the height of chamfer cone in cylindrical workpiece - Google Patents

Abstract

The invention relates to technical measurements. The aim of the invention is to expand the information content. The method for determining the height of the chamfer cone on the cylindrical part consists in measuring the diameter D of the hole, diameter D of the cylindrical outer surface and height H of the part 1 to be monitored. Next, using a rectangular prism 4, the part and the reference roller D are alternately mounted on it p and in the plane located to one of the prism planes at an angle α equal to half the angle of the cone of chamfers, the distance C from the top forming the cone of chamfer 3 on the outer cylindrical surface to the base p is additionally measured isms, the distance C 1 from the lower generatrix of the cone chamfer at the opening 2 to the base of the prism and the distance L from the upper generatrix of the reference roller 5 to the prism base. The measurement results are used to calculate the height A of the chamfer cone at the hole and the height B of the cone at the outer cylindrical surface using known geometric relationships. 1 il.

Description

The invention relates to technical measurements. The aim of the invention is to expand the information content. The method for determining the height of the chamfer cone on a cylindrical part is that the measured part 1 measures the hole diameter ά, diameter I) of the cylindrical outer surface and height b. Next, using a rectangular prism 4, the part and the reference roller with diameter Hp and in the plane located to one "are alternately mounted on it; on the outer cylindrical surface to the base of the prism, distance c ^ from the lower generatrix of the chamfer 2 at the hole to the prism base and the distance 1 from the upper generatrix of the reference roller 5 to the prism base. the height a of the cone of the chamfer at the hole and the height b of the cone of the chamfer at the outer cylindrical surface, using the known geometric relationships.

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The invention relates to technical measurements.

The aim of the invention is to expand the information content, due to the definition of the height of the chamfer not only at the hole, but also on the outer cylindrical surface.

The drawing shows the scheme of the proposed method. Yu

In the diagram, the following notation is taken. chenii? controlled cylindrical part 1, chamfer 2 at the hole, chamfer 3 on the outer cylindrical surface, rectangular prism 4, 15

reference roller 5.

The method of determining the height of the cone chamfer on a cylindrical part is as follows.

For the controlled part 1, 20 diameter <1 hole, diameter B of the cylindrical outer surface and height H of the part are measured. For the proposed method, a rectangular prism 4 and a reference roller with a diameter of _{r p are used} . 25 The part 1 is installed on the prism 4 first, and then the reference roller 5 and in the plane located to one of the prism planes, which is a mounting base for part 1, is measured at 30 angle </ equal to half the angle of the chamfer cone, distance with from the top of the forming cone chamfer 3 on the outer cylindrical. which surface is up to the base of the prism 4, ^ distance c ^ from the lower generatrix of the cone chamfer 2 at the hole to the base of the prism 4 and distance 1 from the upper generatrix of the reference roller 5 to the base of the prism 4. 40

Having the results of measurement of these parameters, calculate the height of the cone of the chamfer at the hole and the height b of the cone of the chamfer at the outer cylindrical surface using the formulas 45

51P </

1 + sozo (+ 31Po /) + Isoz 31P'0 (’

50

l = n ·

3 Ϊπ οί

^ - (1 + w h </ + h ϊ to () + 2 - w o h / a] 5Ϊη οί ’

where k is the distance from the top of the angle of the prism 4 to its base;

B = --- cos x is the projection of half difference

outer and inner diameters of the cylindrical part on the plane of additional measurements;

t = Tssoz </ - projection of the outer diameter of the cylindrical part on the plane of additional measurements.

Claims (1)

Claim • A method for determining the height of a chamfer cone on a cylindrical part, which consists in measuring the geometrical parameters of the part and by. the measurement results determine the height of the chamfer cone, characterized in that, in order to expand the information content by determining the chamfer height not only at the hole, but also on the outer cylindrical surface, the diameter of the C-hole, the diameter of the cylindrical outer surface and the height H of the product, a rectangular prism and a reference roller of diameter устанавливаρ are used; a detail and a reference roller are mounted on the prism in the plane located to one of the prism planes. at an angle / equal to half the angle of the chamfer cone, the distance c from the top generatrix of the chamfer on the outer cylindrical surface to the prism base is additionally measured, the distance from the lower generatrix of the chamfer cone at the opening to the prism base, and distance 1 from the top generatrix of the reference roller to the prism base and the height of the cone of the chamfer and the height b of the cone of the chamfer on the outer surface is determined by the formulas c- ^ 1- | - (Nsozo '+ zgpoO + ysozy' a — 6— —————————— · ———————— 51П <Х ’ с ^ -Γΐ- "(1 + sozo (+ 31По () + 2-2соз Ъ = Н ---- 4 --- ---------------- ή-- -δΐηοί 55