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Machining method of kidney-shaped round hole

A processing method and a waist hole technology, which are applied in the field of waist hole processing, can solve the problems of large vibration amplitude of milling cutters and low machining accuracy of waist holes.

Pending Publication Date: 2020-10-27
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology

[0004] The embodiment of the present disclosure provides a method for processing the round hole, which can prevent the milling cutter from vibrating greatly due to the overhanging length of the milling cutter during machining, resulting in low precision in processing the round hole on the outer flange. Problems, so that the quality of the milling waist hole can meet the accuracy requirements

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  • Machining method of kidney-shaped round hole
  • Machining method of kidney-shaped round hole
  • Machining method of kidney-shaped round hole

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0024] Hole processing usually includes drilling method, reaming method and milling method. The waist hole is usually processed by milling because of its non-circular shape. Milling refers to a processing method in which the workpiece is fixed and positioned, and a high-speed rotating milling cutter is used to move on the workpiece to cut out the required shape and features.

[0025] figure 1 It is a front view of a shaft-shaped workpiece provided by the related art. Such as figure 1 As shown, the shaft-shaped workpiece includes a main shaft A and an outer flange B located in the middle of the main shaft A. Because of the long distance between the end face of the outer flange B and the end face of the main shaft A of this kind ...

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Abstract

The invention provides a machining method of a kidney-shaped round hole. The machining method comprises the steps that the centers of two arcs of the kidney-shaped round hole are determined on an outer flange of a shaft-shaped workpiece; with the centers of the two arcs of the kidney-shaped hole as the benchmark, two first initial holes are machined in the centers of the two arcs correspondingly,and allowance gaps are formed between the first initial holes and the two arcs; a plurality of first initial holes are machined between the two first initial holes in the extending direction of the side edges, connected with the two arcs, in the kidney-shaped hole; and a second initial hole is machined in a gap between every two adjacent first initial holes, and allowance gaps are formed between the second initial holes and the side edges, connected with the two arcs, of the kidney-shaped holes. The kidney-shaped hole is milled by adopting a milling cutter by taking the two first initial holespositioned in the central positions of the two arcs of the kidney-shaped hole as a starting point and an ending point correspondingly. When the milling cutter with the large suspension length is usedfor machining the kidney-shaped round hole, the precision of the milled kidney-shaped round hole can be guaranteed.

Description

technical field [0001] The present disclosure relates to the technical field of machine tool processing, in particular to a method for processing round waist holes. Background technique [0002] The waist hole is a kind of full circle through hole. The two ends of the axial cross section of the waist hole are arcs, and the side connecting the two arcs is usually a straight line or a curve. Through holes of this shape are usually processed by milling. Milling refers to a processing method in which the workpiece is fixed and positioned, and a high-speed rotating milling cutter is used to move on the workpiece to cut out the required shape and features. [0003] For a shaft-shaped workpiece with an outer flange, when it is necessary to process a round hole on the end face of the outer flange, the shaft-shaped workpiece is usually positioned on the CNC lathe based on the central axis of the shaft-shaped workpiece. The outer flange of the round hole is located in the middle of ...

Claims

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Application Information

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IPC IPC(8): B23C3/00
CPCB23C3/00
Inventor 万松孟华周虎康伟许东刘帅曾文则王晓峰梅进权熊智伟
Owner WUHAN MARINE MACHINERY PLANT
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