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External taper measuring apparatus

A measuring instrument, the technology of external taper, applied in the direction of angle/taper measurement, etc., can solve the problems of unadjustable relative relationship, on-site measurement deviation, low measurement accuracy, etc., achieve good neutrality, reduce measurement error, and ensure measurement accuracy. Effect

Inactive Publication Date: 2010-06-09
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this kind of measuring instrument can only measure limited fixed points, which is greatly affected by the shape error of the measured part, so the measurement accuracy is not high and the scope of application is narrow; because the relative relationship between the bracket and the isosceles trapezoidal frame is not adjustable, only Suitable for measuring rolls with similar shaft diameters
It can be seen that the neutrality of the existing measuring instruments is not good, and it is easy to produce on-site measurement deviations, and it is difficult to realize the online measurement of the above-mentioned products weighing 40-80 tons

Method used

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Embodiment

[0031] image 3Shown is an external taper measuring instrument, which includes a bracket and an isosceles trapezoidal measuring plate 2 with a rounded fulcrum 10 . The roughness of the round fulcrum 10 is Ra0.8.

[0032] The measuring plate 2 is made of T8 steel quenching and aging treatment material, the upper waist of the isosceles trapezoid is the measuring surface 5, and the lower waist is the reference plane 6, and the two waists are processed simultaneously through grinding. After assembly, the perpendicularity between the measuring plate and the workpiece is 0.06-0.08mm, the flatness of the reference plane and the measuring surface of the measuring plate must be guaranteed to be 0.015mm, the roughness is Ra0.8, and the perpendicularity is 0.02mm.

[0033] The bracket includes two identical vertical support plates 3 processed and formed at the same time. The outer contour of the radial structure of the vertical support plates 3 is formed by two inverted V-shaped upper n...

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Abstract

The invention discloses an external taper measuring apparatus, comprising a bracket and an isosceles trapezoid measuring plate with a round head support point. The bracket is formed in such a way that two support plates which have the same structure and are simultaneously formed are horizontally connected by a connection rod at intervals; the two support plates are vertically arranged, the bottom edge of the support plate is a reversed V-shaped support groove, a slot of the measuring plate is arranged above a top point of a reversed V-shaped angle of the support groove, the slot of the measuring plate reversely extends from the top point of the reversed V-shaped angle of the support groove to an angular bisector of the angle, the measuring plate is arranged in the slot, the width of the slot is matched with the thickness of the measuring plate; two waist edges of the measuring plate are respectively a plane-type measuring surface and a standard surface that are simultaneously processed and formed. The invention can effectively prevent the measuring plate from rolling over, keep the precision of centering and ensure the precision of measuring; the standard surface contacts a conical surface bus of a roller by 100%, being measured at any points, so that the invention can be used conveniently. The external taper measuring apparatus is particularly suitable for measuring the external taper of large supporting rollers.

Description

technical field [0001] The invention belongs to an inspection and measurement tool for machined products, in particular to an external taper measuring instrument for machined parts such as rolls. Background technique [0002] The large back-up rolls of hot rolling mills are generally between 40 and 80 tons, and the journals at both ends of the back-up rolls are designed with a taper of 1:5.647 or 1:5 for the assembly of bearings, where the size requirements are strict , the taper should be monitored online during processing, and a special external taper measuring instrument is required. The commonly used external taper measuring instrument is an integral frame structure, as shown in the attached manual figure 1 , 2 As shown, its main body transverse structure is an isosceles trapezoidal frame, one waist of the isosceles trapezoidal frame is the datum plane, and two datum points are set on the datum plane, these two datum points are in contact with the tapered surface of th...

Claims

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Application Information

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IPC IPC(8): G01B5/24
Inventor 张贵敏黄庆菊左翠平
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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