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Automatic press-fitting system and assembling method for ball screw pair bearings

A ball screw pair and screw pair technology, applied in the field of automatic assembly, can solve the problems of poor consistency of installation accuracy, improper installation of bearings, and small force-bearing area.

Active Publication Date: 2021-09-10
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide an automatic press-fitting system and assembly method for ball screw sub-bearings, which are used to solve the problem that the bearings are easily affected by the hammer impact when the bearings are installed by manual press-fitting. Damage, and due to the relatively small bearing area, the bearing is prone to problems such as improper installation, poor installation accuracy consistency, and cannot be applied to mass production of bearing press-fitting

Method used

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  • Automatic press-fitting system and assembling method for ball screw pair bearings
  • Automatic press-fitting system and assembling method for ball screw pair bearings
  • Automatic press-fitting system and assembling method for ball screw pair bearings

Examples

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Embodiment 1

[0047] Such as figure 1 As shown, the end of the ball screw pair 1 needs to be installed with the bearing 2, and the screw end of the ball screw pair and the bearing 2 are installed in an interference fit manner. The automatic press-fitting system of the bearing of the ball screw pair of the present invention is used to realize the automatic press-fitting of the bearing on the ball screw pair 1 .

[0048] A specific embodiment of the present invention discloses an automatic press-fitting system for a ball screw sub-bearing, including: a slide rail mechanism 4 , a sliding fixture 5 , a press-fitting mechanism 6 and a screw sub-positioning mechanism 7 . Among them, the sliding fixture 5 is used for loading and positioning the bearing 2 and the ball screw pair 1, the sliding fixture 5 is arranged on the slide rail mechanism 4, and can be driven to slide through the slide rail mechanism 4; the press-fitting mechanism 6 is erected on the slide rail mechanism 4; the press-fit mecha...

Embodiment 2

[0080] A specific embodiment of the present invention provides an automatic press-fit assembly method for a ball screw pair bearing. The ball screw pair 1 and bearing 2 are assembled using the ball screw pair bearing automatic press-fit system in Embodiment 1, including The following steps:

[0081] Step S1: drive the sliding fixture 5 to slide to the first station along the linear guide rail 41; place the ball screw pair 1 on the screw pair positioning block 53 of the sliding fixture 5; take out a bearing 2 from the bearing bin 8, And place the bearing 2 on the bearing positioning pin 52 of the sliding fixture 5;

[0082] Step S2: Drive the sliding fixture 5 to slide to the second station along the linear guide rail 41, so that the bearing positioning pin 52 is axially aligned with the magnetic indenter 65 of the press-fitting mechanism 6; the press-fitting mechanism 6 drives the magnetic indenter 65 to move down, Adsorb the bearing 2 on the bearing positioning pin 52;

[0...

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Abstract

The invention relates to an automatic press-fitting system and assembling method for ball screw pair bearings, belongs to the technical field of automatic assembling, and solves the problems that in the prior art, the ball screw pair bearings are not installed in place easily and the consistency of the installation precision is poor when the ball screw pair bearings are assembled. The automatic press-fitting system for a ball screw assembly bearing comprises a sliding rail mechanism, a sliding clamp, a press-fitting mechanism, a bearing bin and a four-axis robot, wherein the four-axis robot can grab bearings from the bearing bin; the sliding clamp is installed on the sliding rail mechanism and can slide along the sliding rail mechanism; the sliding clamp is used for loading and positioning ball screw pairs and the bearings; the press-fitting mechanism is erected above the sliding rail mechanism, and a magnetic pressure head is arranged on the press-fitting mechanism; the magnetic pressure head can adsorb the bearings; the press-fitting mechanism can drive the magnetic pressure head to move downwards; and when the magnetic pressure head moves downwards, the bearings can be pressed on the ball screw pairs. Automatic press fitting of the ball screw pair bearings is achieved, the press fitting precision and consistency are guaranteed, and the assembling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of automatic assembly, in particular to an automatic press-fitting system and an assembling method for a ball screw auxiliary bearing. Background technique [0002] As one of the components of mechanical structure transmission components, ball screw auxiliary bearings are widely used in various fields such as transportation, aerospace, and military products. The ball screw auxiliary bearing is composed of screw, bearing and nut, such as figure 1 shown. At present, the method of installing the bearing on both sides of the nut is manual press-fitting. The ball screw pair (composed of the screw and the nut) is fixed by simple tooling, and the bearings and the mounting columns on both sides of the nut are axially aligned. Knocking is used to realize the installation of the bearing and the nut mounting column. The main problems are that the bearing is prone to appearance damage due to the impact of the hammer i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/02
CPCB23P19/02B23P19/001
Inventor 门广强马俊王凯任宏程建安刘杰
Owner BEIJING MECHANICAL EQUIP INST
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