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Machining method used for machining arc-surface work-piece with big length-diameter ratio

A processing method and technology with a large length-to-diameter ratio, applied in the field of lathe processing, can solve the problems of small arc radius and high manufacturing cost of forming milling cutters, and achieve the effects of low machine requirements, strong practicability, and insufficient rigidity

Inactive Publication Date: 2015-08-05
CHANGZHOU COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: 1. The manufacturing cost of the forming milling cutter is very high; 2. After the forming milling cutter is worn, the radius of the arc becomes smaller, and the processed arc does not meet the requirements of the drawing

Method used

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  • Machining method used for machining arc-surface work-piece with big length-diameter ratio
  • Machining method used for machining arc-surface work-piece with big length-diameter ratio
  • Machining method used for machining arc-surface work-piece with big length-diameter ratio

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] see figure 1 with figure 2 , The present invention includes the following steps:

[0036] Ⅰ. Clamp the workpiece on the worktable, and assemble the boring bar on the spindle box; adjust the angle of the boring bar and ensure that the rotation axis of the boring bar and the axis of the arc surface of the workpiece to be processed are on the same plane and form an angle The relative movement axis of the workpiece is parallel to the axis of the arc surface of the workpiece to be processed;

[0037] Ⅱ. According to the arc radius R and chord length L of the arc surface of the known workpiece to be processed, the tool turning radius D of the boring tool is calculated by the following calculation method:

[0038] ①Complete the projection of the arc surface of the workpiece in its extension direction into a circle, and establish the circular coordinate system XOY with this circle; set the arc surface of the workpiece to be processed in its extension direction to be projected into a...

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Abstract

The invention relates to a machining method used for machining an arc-surface work-piece with big length-diameter ratio. The machining method comprises the following steps of: I, clamping a work-piece and adjusting position of a boring rod; II, calculating turning radius D of a cutter; III, adjusting size of a boring cutter which stretches out of the boring rod based on the calculated turning radius D of the cuter; IV, adjusting the distance between the center of the turning track of the boring cutter and the arc top as b; V, boring and shaping. The machining method can greatly reduce the length-diameter ratio of the boring rod which is used for machining, can increase rigidity of the boring rod, and can ensure roughness of the machined arc surface.

Description

Technical field [0001] The invention relates to the field of turning processing, in particular to a processing method for processing a workpiece with a large aspect ratio arc surface. Background technique [0002] In mechanical parts, it is often encountered that the arc radius is not large, but the machined surface of the arc is very long (that is, the aspect ratio is large). Such as figure 1 The parts that need to be processed are shown. There are two conventional processing methods for arc surfaces of this kind of parts: [0003] The first type is to perform boring on a boring machine (or milling machine), install a knife on the boring bar, and the axis of the boring bar coincides with the axis of the arc surface to be processed during processing. Disadvantages: because the machined surface is very long, the length of the boring bar must also be lengthened; at the same time, because the radius of the processed arc is not large, the diameter of the boring bar will inevitably no...

Claims

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Application Information

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IPC IPC(8): B23B35/00
CPCB23B35/00
Inventor 汪涵蒋继平汪玉书
Owner CHANGZHOU COLLEGE OF INFORMATION TECH