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Ball screw axial runout rapid detection device

A technology for axial runout and detection devices, applied in measuring devices, mechanical measuring devices, mechanical devices, etc., can solve the problems of low accuracy, complicated operation, unfavorable installation, fixation and operation, etc., and achieve strong practicability and easy operation Simple, fast detection of effects

Active Publication Date: 2021-01-05
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing detection methods are not only complicated to operate, but also have low accuracy, which is caused by:
[0004] 1) Limited by the installation space of the lead screw, it is not conducive to installation, fixation and operation;
[0005] 2) It is impossible to ensure that the high-precision sphere fits effectively with the center hole of the end face of the screw;
[0006] 3) The dial indicator cannot be accurately fixed to the highest point of the high-precision sphere manually

Method used

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  • Ball screw axial runout rapid detection device
  • Ball screw axial runout rapid detection device
  • Ball screw axial runout rapid detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A quick detection device for the axial runout of a ball screw, such as figure 1 As shown, it includes a high-precision sphere 19, a rotating and separating mechanism installed on the end surface of the screw 24 for separating circular motion, a preload adjustment mechanism for pre-tightening the high-precision sphere 19 to fit the center hole wall of the screw 24, and precision measurement. Mechanism and support assembly, the preload adjustment mechanism is installed on the end face of the lead screw 24 through the support assembly, the preload adjustment mechanism is connected to the rotation separation mechanism; touch.

[0055] It should be noted that during assembly, the support assembly is first installed on the preload adjustment mechanism, and then the preload adjustment mechanism is connected with the rotary separation mechanism, and then the precision measuring mechanism is installed into the preload adjustment mechanism. The sphere 19 and the dial indicator 1...

Embodiment 2

[0057] This embodiment is optimized on the basis of embodiment 1, such as figure 1 , figure 2 As shown, the precision measuring mechanism includes a mandrel 14 and a dial indicator 17, and the preload adjustment mechanism is set in the rotation separation mechanism and fits with the high-precision sphere 19 through the rotation separation mechanism; the preload adjustment mechanism There is a mandrel 14 slidingly sleeved in the mechanism, and one end of the mandrel 14 protrudes and contacts with a high-precision sphere 19. The dial indicator 17 is installed in the inner cavity of the upper end surface of the pre-tightening adjustment mechanism, and the measuring head and the core The other end of the shaft 14 is in contact.

[0058] During the use of the present invention, the detection device is installed on the end face of the lead screw 24. The device uses a powerful magnetic base 1 to quickly fix the end face of the lead screw 24, and the rotation of the lead screw 24 is...

Embodiment 3

[0061] This embodiment is optimized on the basis of embodiment 1 or 2, as image 3 As shown, the rotating separation mechanism includes a strong magnetic base 1, a bearing base 2, a bearing 4, and a sleeve lock nut 7; Nut 7, the powerful magnetic seat 1 is threadedly connected with the bearing base 2, and the preload adjustment mechanism passes through the support assembly, the bearing 4 and extends into the bearing base 2 and is threadedly connected with the sleeve lock nut 7; the bearing 4 is installed in the bearing base 2, the inner ring of the bearing 4 fits with the preload adjustment mechanism, and the outer ring is fixedly connected with the inner cavity of the bearing base 2, and the support assembly is provided with a device to limit the rotation of the preload adjustment mechanism Limit screw.

[0062] Further, the cavity of the bearing base 2 is provided with a boss 201 for installing the bearing washer 3 and a limit groove 202 for installing the limit ring 5, and...

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Abstract

The invention discloses a ball screw axial runout rapid detection device, which comprises a high-precision ball body, a rotary separation mechanism which is installed on the end face of a screw and performs separation circular motion, a pre-tightening adjustment mechanism which is used for pre-tightening the high-precision ball body to be attached to the wall of a center hole of the screw, a precision measurement mechanism and a supporting assembly. The pre-tightening adjusting mechanism is installed on the end face of the screw through the supporting assembly and connected with the rotary separation mechanism. The precision measurement mechanism passes through the rotary separation mechanism and is in point contact with the high-precision ball body. According to the invention, the circumferential rotation precision of the screw can be converted into the axial run-out precision of the high-precision ball body, the axial run-out precision is transmitted to a dial indicator through a mandrel, and the detection of the axial run-out precision is realized by reading the change of the pointer of the dial indicator; the device is simple to operate, rapid in detection and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of precision detection of mechanical equipment, and in particular relates to a fast detection device for axial runout of a ball screw. Background technique [0002] Ball screw converts rotary motion into linear motion, or converts torque into axial repeated force. It has the advantages of "high load, high efficiency, high precision, high reliability and high economy", so it is widely used in various In the transmission system of industrial precision equipment. However, the assembly accuracy error and long-term operation of the lead screw may cause axial runout, which will affect the transmission accuracy of the entire equipment, and even cause the workpiece to be scrapped. [0003] At present, the technical detection method for the axial runout of the lead screw is: put a high-precision sphere in the center hole at one end of the lead screw, cooperate with the magnetic gauge holder to clamp the dial indicat...

Claims

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Application Information

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IPC IPC(8): G01B5/00
CPCG01B5/0004
Inventor 李勇李杰李梦梅徐强王一鹏陈鑫进高峰峰熊虎山盛雷陈泉雨
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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