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A fixture for assembly of multi-type planetary roller screw pairs

A technology of planetary rollers and assembly fixtures, which is applied in the direction of manufacturing tools and workpiece clamping devices, can solve the problems of transmission accuracy and equipment service life reduction, complex meshing relationship, and difficult assembly, etc., to achieve simple structure and multiple applicable models , the effect of convenient operation

Inactive Publication Date: 2020-08-07
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the deficiencies of the existing technology and overcome the problems of difficult assembly, transmission accuracy and equipment service life reduction caused by the compact structure and complex meshing relationship of the planetary roller screw pair, the present invention proposes a multi-model Planetary roller screw assembly fixture

Method used

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  • A fixture for assembly of multi-type planetary roller screw pairs
  • A fixture for assembly of multi-type planetary roller screw pairs
  • A fixture for assembly of multi-type planetary roller screw pairs

Examples

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Embodiment Construction

[0024] This embodiment is a fixture for assembling multiple types of planetary roller screw pairs.

[0025] refer to Figure 1 to Figure 7 , this embodiment is used for multiple types of planetary roller screw assembly fixtures, consisting of a three-jaw fixing assembly 1 for fixing the horizontal position of the nut, a nut support assembly 2 for positioning the roller and supporting the nut, and a support assembly for supporting the umbrella The support frame 3 of the roller fixing assembly, the umbrella-shaped roller fixing assembly 4 for fixing the position of the rollers, and the base 5 are composed; the base 5 is a disc-shaped structure, and the base 5 provides support for the above-mentioned components; wherein, the nut support assembly 2 is located on In the middle part of the three-claw fixing assembly 1, the support frame 3 is located above the nut support assembly 2 and connected with the nut support assembly 2. The assembly 2, the support frame 3 and the umbrella-s...

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Abstract

The invention discloses an assembly clamp used for planetary roller lead screw pairs of multiple specifications. The assembly clamp consists of a three-jaw fixing assembly, a nut supporting assembly,a supporting frame, an umbrella-shaped roller fixing assembly and a base, wherein a nut which is equipped with an inner gear ring is placed on the nut supporting assembly; a roller with a regulated position is fixed by pulling out a baffle plate of a roller fixing clamp via the roller fixing clamp; and after rollers with regulated positions are fixed, the rollers are arranged in planet carriers and spring retainer rings, so that the integral assembly process is realized. A rotary lead screw regulates extending-out amount of a clamping jaw to adapt to nuts of different outer diameters; the umbrella-shaped roller fixing assembly is unfolded to adapt to nuts of different inner diameters by regulating number of roller positioning tile plates and rotating positioning nuts; and assembly for different number of rollers is adapted by changing number of grooves of the roller positioning tile plates and the umbrella-shaped roller fixing assembly. The assembly clamp is simple in structure, is convenient in operation, is multiple in applicable models, and greatly improves assembly efficiency and assembly precision of the planetary roller lead screw pairs.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing and assembly technology, in particular to an assembly fixture for multiple types of planetary roller screw pairs. Background technique [0002] The planetary roller screw pair is a mechanical transmission device that can convert rotary motion and linear motion. Due to its compact structure and complex meshing relationship, it is difficult to assemble. The difficulty of assembling the planetary roller screw pair is mainly due to the phase matching between thread processing and gear processing. In actual processing, it is impossible to ensure that the tooth cutting position of each roller is at the same starting point of the thread, and there will be conflicts between thread meshing and gear meshing phases. problems, thereby affecting its normal operation, reducing the reliability of the transmission and the service life of the equipment. [0003] In the patent CN 105437116 A, "a p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B11/02
Inventor 佟瑞庭韩宾刘更乔冠马尚君权泽芬万琦
Owner NORTHWESTERN POLYTECHNICAL UNIV
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