High-precision high-rigidity prestress support

A pre-stressed, high-rigidity technology, applied in the field of precision equipment manufacturing, can solve the problems of unreliable repetitive positioning accuracy, low accuracy, and insufficient rigidity.

Inactive Publication Date: 2018-06-01
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of low system positioning accuracy and unreliable repeat positioning accuracy caused by insufficient rigidity and low precision of the support in the above feed system, the present invention provides a high-precision, high-rigidity prestressed support , suitable for precision machine tool feed drive system, has the advantages of simple structure, high positioning accuracy, high connection height, and good reliability

Method used

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  • High-precision high-rigidity prestress support
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  • High-precision high-rigidity prestress support

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Embodiment Construction

[0011] like figure 1 figure 2 image 3 As shown, the support body (1) is a special-shaped structural part, and its upper part is provided with a driving mechanism installation hole (9), and its lower part is provided with a joint surface (05) installed with the mechanical main body (16), a positioning surface (6), a pre-set The stress slope (7) and mounting screw holes (2, 3, 4) are used for mounting screws (12, 13, 14) to fix the support body; the oblique key (8) is a wedge-shaped structure, and one side (15) is used for positioning , the wedge surface (10) is used to increase the force to improve the prestress of the support body installation, and is provided with a mounting screw hole (11) for installing the screw (12) and tightening the oblique key, so as to achieve the effect of increasing force and preloading.

[0012] When in use, the support body (1), the oblique key (8) and the mounting screws (12, 13) are formed into an assembly, pre-installed in the mounting groo...

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Abstract

The invention discloses a high-precision high-rigidity prestress support and belongs to the technical field of precision equipment manufacturing. A support body is of a special-shaped structural member, a driving mechanism mounting hole is formed in the upper portion of the support body, the support body is arranged on a mechanical main body part, and a mounting combination surface, a positioningsurface, a prestress inclined plane and a mounting screw hole a are arranged at the lower part of the support body. A screw a is used for connecting the mounting screw hole a with a mounting screw hole d, so that the support body is connected with an inclined key, the prestress inclined surface is in contact with the wedge surface, and the wedge surface is used for increasing the force and improving the pre-stress of mounting of the support body; and the inclined key is of a wedge-shaped structure, and the side surface is parallel to the positioning surface and is in contact with the mechanical main body, so that the positioning function is achieved. The support structure is suitable for a precise machine tool feeding drive system, and the high-precision high-rigidity prestress support hasthe advantages of being simple in structure, convenient to operate, high in positioning precision, high in connection height, good in reliability, high in practicability and the like.

Description

technical field [0001] The invention relates to a high-precision, high-rigidity prestressed bearing, which belongs to the technical field of precision equipment manufacturing. Background technique [0002] In the field of precision equipment manufacturing technology, such as the manufacture of high-precision CNC machine tools, the support at both ends of the ball screw and the nut mounting seat of the roller screw in the feed system are flat screw connection structures, and the reaction force is balanced by friction. There are problems such as insufficient rigidity, low precision, and unstable positioning, resulting in low positioning accuracy of the system and unreliable repeat positioning accuracy. Contents of the invention [0003] In order to overcome the problems of low system positioning accuracy and unreliable repeat positioning accuracy caused by insufficient rigidity and low precision of the support in the above feed system, the present invention provides a high-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q5/34
CPCB23Q5/34
Inventor 刘赵淼徐元迪逄燕
Owner BEIJING UNIV OF TECH
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