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Spherical pair surface machining device and method thereof

A surface processing and spherical processing technology, applied in spherical grinding machines, metal processing equipment, manufacturing tools, etc., can solve the problems of reduced processing accuracy, low processing quality and processing efficiency, and processing accuracy depends on the accuracy of tool feed, so as to avoid displacement. Error, improve work efficiency, the effect of high degree of automation

Inactive Publication Date: 2019-01-18
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operation of this machining method is relatively complicated, and the machining accuracy depends on the tool feed accuracy
Among the existing patented technologies, such as the authorized announcement number CN1088141, the invention patent application titled "New Technology for EDM Precision Plane and Spherical Surfaces", the workpiece and the tool electrode respectively rotate around the two axes that are located on the same plane at the same time. The angle between the two rotating shafts and the electrode and the electrode diameter determine the radius of curvature of the spherical surface and the precision of the plane forming. This method solves the problem of limited movement of the spherical surface and has high processing efficiency. However, the rear ends of the two rotation axes are not supported, and the axis may be Not in one plane, resulting in reduced machining accuracy, and unable to process spherical surface topography
According to the processing requirements of the special surface topography of the spherical surface, such as laser spherical surface texture processing, the processing method approximately perpendicular to the spherical surface or the method of adjusting the position of the workpiece is generally used for surface texture processing. This processing method is complicated to operate and the processing quality and processing efficiency is low, while using industrial robots to process spherical surface topography, the movement space of the processing head is limited and more expensive

Method used

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  • Spherical pair surface machining device and method thereof
  • Spherical pair surface machining device and method thereof
  • Spherical pair surface machining device and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0065] Taking the outer spherical surface of the inner ring of the laser-textured spherical plain bearing as an example, two spherical plain bearings with an outer diameter of 40mm, an inner diameter of 25mm, and a width of 30mm are selected, and the inner ring and outer spherical surface of the first spherical plain bearing are textured in 10 rows with a spacing of 500um. There are 10 rows of pits in the array, and the outer spherical texture of the second joint bearing inner ring has cross-textured grooves. The angles between the axial and circumferential directions of the cross-textured micro-grooves are both 45 degrees, and the distance between adjacent strip grooves is 500um.

[0066] Its working principle is roughly as follows: install the spherical workpiece 401 on the spherical processing jig, adjust the laser focus position, and then control the laser, the swing axis and the rotation axis through the controller to complete the laser texture processing of the outer spher...

Embodiment 2

[0072]Taking EDM small hole machining on the outer spherical surface of the inner ring of the spherical plain bearing as an example, select a spherical plain bearing with an outer diameter of 45mm, an inner diameter of 35mm, and a width of 30mm, and process a 5-row and 5-column array hole on the outer spherical surface of the inner ring with a spacing of 5mm. , the hole diameter is 2mm, and the hole depth is 3mm.

[0073] Its working principle is roughly as follows: install the spherical workpiece 401 on the spherical surface processing fixture, adjust the position of the tool electrode, and then control the excitation pulse power supply, device swing axis and rotation axis through the controller to complete the EDM small hole machining on the outer spherical surface of the joint bearing inner ring.

[0074] The specific machining process is as follows: first, take off the workpiece fixture shaft 402 of the spherical surface processing fixture, install the joint bearing workpie...

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Abstract

The invention provides a spherical pair surface machining device and a method thereof. The spherical pair surface machining device comprises a swing mechanism, a rotating mechanism, a connecting frameand a spherical surface machining clamp. A swing shaft of the swing mechanism is connected with the connecting frame, the rotating mechanism is arranged on the connecting frame, and a rotating shaftof the rotating mechanism vertically intersects with the axis of the swing shaft. The rotating mechanism is used for rotating a machined workpiece. The spherical surface machining clamp is mounted onthe rotating shaft and used for positioning the ball center of the workpiece on the vertical intersection of the swing shaft and the axis of the rotating shaft. In the one-time workpiece machining process, machining tools such as a knife cutting edge, a laser focus and an electric spark machining or electrolytic machining tool electrode can be fixed, the machining process is achieved by controlling the swing shaft and the rotating shaft, and displacement errors of the machining tools are avoided. The device is compact and simple in structure, great practical significance is achieved for meeting the requirements of a spherical pair surface special shape machining process, and the machining precision and the machining efficiency can be remarkably improved.

Description

technical field [0001] The invention belongs to the research field of spherical surface processing, and in particular relates to a spherical subsurface processing device and method thereof. Background technique [0002] The two components connected by the spherical pair are in surface contact, and the spherical pair has certain requirements for precision and roughness. For the machining of the subsurface of the spherical surface, CNC lathes are usually used for processing. The spherical workpiece is fixed on the rotating shaft by using a fixture, and the tool is controlled to make corresponding displacements to process the spherical surface. The traditional processing method is efficient, but the operation is relatively complicated. If the operation is not done properly, the cutting tool and workpiece will be damaged and scrapped, and even the machine tool will be damaged. And this method cannot meet the requirements for the special shape processing technology of the spheri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B11/02B24B41/06
CPCB24B11/02B24B41/06
Inventor 华希俊王炳文解玄张加力王皓朱翊航刘建芳尹必峰张培耘
Owner JIANGSU UNIV