Eccentricity adjusting method and device for vertical numerically controlled grinder to process eccentric orifice

A technology of numerical control grinding machine and adjustment method, which is applied in grinding machines, metal processing equipment, machine tools designed for grinding the rotating surface of workpieces, etc., can solve the problems of high processing cost, high precision requirements, complex structure, etc. The effect of ensuring grinding accuracy and efficiency and simplifying the process of clamping workpieces

Inactive Publication Date: 2009-11-25
SHANGHAI UNIV
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Problems solved by technology

The invention overcomes the disadvantages of complex structure of the special fixture, high precision requirements and high processing cost, so that the adju

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  • Eccentricity adjusting method and device for vertical numerically controlled grinder to process eccentric orifice
  • Eccentricity adjusting method and device for vertical numerically controlled grinder to process eccentric orifice
  • Eccentricity adjusting method and device for vertical numerically controlled grinder to process eccentric orifice

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Embodiment Construction

[0032] by image 3 The typical workpiece shown --- large eccentricity bearing is taken as an example, and the embodiment of the present invention is described below:

[0033] see image 3 and Figure 4 , the method of adjusting the eccentricity of the eccentric hole processed by the vertical grinding machine is as follows: firstly, install the eccentric bearing on the auxiliary tooling, and then fasten it as a whole on the workbench 2, and make the eccentric direction line O through the positioning of the auxiliary tooling 1 o 2 Parallel to the center line of the rectangular stepped hole of the pull block 9. Then, through the numerical control system to control the relevant movement of the drive shaft C and auxiliary shaft U of the workbench 2, and cooperate with a series of auxiliary commands or panel buttons of the numerical control system, the programmable logic controller PLC controls the actions of each cylinder, and completes the following adjustment steps in sequence...

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Abstract

The invention relates to an eccentricity adjusting method and device for vertical numerically controlled grinder to process eccentric orifice. When the vertical numerically controlled grinder processes an eccentric orifice, the invention uses numerical servo control to realize method of precisely adjusting eccentricity of eccentric orifices of various specifications. The method comprises steps of adding a servo assistant shaft on the vertical numerically controlled grinder, driving the shaft through numerical servo to drag a worktable so as to making center of the eccentric orifice and rotatory center of a rotatory pedestal overlapped, thus realizing numerical servo control of eccentricity adjustment. The method makes adjustment precision of the eccentricity not dependent on precision of a clamp any more, makes adjustment range not limited to structure of the clamp and is especially applied to large-eccentricity workpiece. The invention simplifies process of clamping the workpiece, decreases human intervention degree and work intensity, can finish grinding an outer circle and a eccentric orifice during process of one-time clamping, improves processing efficiency and guarantees stability of processing precision.

Description

technical field [0001] The invention relates to a non-traditional manual adjustment eccentricity digital servo control adjustment method and device when a vertical numerical control grinding machine processes an eccentric hole workpiece. Background technique [0002] For the processing of eccentric holes, the traditional method is to first determine the eccentric coordinates of the workpiece (specifically: clamp the outer circle in the three-jaw self-centering chuck on the universal indexing head or V-shaped frame, turn the indexing handle to make the workpiece select Rotate, use the dial indicator to find the lowest point of the hole on the lower prime line of the inner hole, and then draw the center line of this point and the cross line perpendicular to it on the end surface of the workpiece.); Install the workpiece in the movable chuck, and carry out a series of position corrections (including: symmetrical correction of two points on the center line perpendicular to the e...

Claims

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Application Information

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IPC IPC(8): B24B5/36
Inventor 沈南燕李静何永义刘博
Owner SHANGHAI UNIV
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