Adjustable check bar component and using method

Abstract

The invention discloses an adjustable check bar component and a using method. According to an isotropic equal-dividing principle, manufacture errors on a circumference are equally divided to positions all around. According to structural characteristics of a bearing saddle and a nut seat, a designed tool can eliminate the phenomenon that multiple holes are not coaxial due to the manufacture errors of the holes regardless of hole positioning or hole plane positioning, the axis of a check bar is consistent with that of a bearing saddle bore or a nut seat bore, and requirements on installation precision are met. A first positioning rod and a second positioning rod of the adjustable check bar component can be replaced by a first positioning rod in the other size and a second positioning rod in the other size, and bearing saddle bores or nut seat bores with different apertures can be coaxially detected. The set of the first positioning rods and the set of the second positioning rods of the adjustable check bar component can replace concentric check sleeves of various specifications. The adjustable check bar component is applicable to coaxially detecting the bearing saddle bores or nut seat bores in various sizes, and production cost is reduced. Besides, the adjustable check bar component is convenient to assemble and disassemble when used, and the phenomenon of violent operation such as forced installation and knocking is avoided.

Description

[0001] technical field [0002] The invention belongs to the field of mechanical manufacturing, relates to an adjustable detection rod assembly, and also relates to a coaxial detection method for a bearing seat hole or a screw nut seat hole by using the adjustable detection rod assembly. Background technique [0003] The typical support structure of the ball screw pair is generally composed of two ends of the supporting bearing seat and the middle screw nut seat. bore coaxial). If the coaxiality error between the bearing seat hole and the screw nut seat hole is large, it will cause the increase of the disturbance of the screw and the increase of the radial bias load, which will cause the temperature rise and thermal deformation of each link of the screw shaft system. A series of serious consequences such as large torque and increased torque. In the prior art, concentric inspection rods and concentric inspection sleeves are generally used for three-hole coaxial inspection, ...

AI Technical Summary

Problems solved by technology

If the coaxiality error between the bearing seat hole and the screw nut seat hole is large, it will cause the increase of the disturbance of the screw and the increase of the radial bias load, which will cause the temperature rise and thermal deformation of each link of the screw shaft system. A series of serious consequences such as large and torque increase

In the prior art, concentric inspection rods and concentric inspection sleeves are generally used for three-hole coaxial inspection, but there are irreversible gap manufacturing errors in the concentric inspection rods, concentric inspection sleeves, and holes of each part, resulting in bearing housing holes and screw nut housing holes. There is a certain error between the axis of the axis and the axis of the concentric detection rod

If the same specification is used to manufacture multiple sizes of inspection sleeves to reduce the gap error, the cost will increase, and there will be shortcomings such as forced installation of the inspection tool and damage to the inspection tool that cannot be repaired. If the hole is coaxial to install the ball screw pair, it can no longer meet the installation accuracy requirements of the machine tool

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