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Processing method of internal keyway of conical hole

A processing method and internal keyway technology, applied in the field of mechanical processing, can solve the problems of inapplicable processing and manufacturing, difficulty in scraping by fitters, lack of interchangeability of single parts, etc., and achieve high precision and avoid repairing effects

Active Publication Date: 2013-04-10
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After the slotting machine is processed, the fitter needs to be repaired according to the shaft and key matching the keyway to be processed. This single-matching processing method not only makes it difficult for the fitter to scrape, but also makes individual parts not interchangeable, which is not suitable for mass production. processing and manufacturing

Method used

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  • Processing method of internal keyway of conical hole
  • Processing method of internal keyway of conical hole
  • Processing method of internal keyway of conical hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 , the embodiment of the present invention provides a method for processing a keyway in a tapered hole, the process of the method includes:

[0038] 101: providing a workpiece to be processed.

[0039] Wherein, the workpiece to be processed is provided with a tapered hole.

[0040] 102: Place the workpiece to be processed vertically on the cutting workbench and keep the end of the tapered hole with the small diameter facing up, so that the center line of the tapered hole is parallel to the movement track of the tool.

[0041] 103: Determine the center position of the tapered hole.

[0042] 104: Taking the central position of the taper hole as a reference, vertically cut the workpiece to be processed from the end of the taper hole with a small diameter to obtain a vertical keyway.

[0043] Wherein, the vertical keyway forms the top of the keyway to be processed, and the two sides of the vertical keyway are symmetrical relative to the center of the tapered ...

Embodiment 2

[0049] see figure 2 , the embodiment of the present invention provides a method for processing a keyway in a tapered hole, the process of the method includes:

[0050] 201: Provide a workpiece to be processed.

[0051] Wherein, the workpiece to be processed is provided with a tapered hole.

[0052] Further, a keyway processing line is drawn on the workpiece to be processed.

[0053] Specifically, the workpiece to be processed is a finished turning / finished part. The taper hole accuracy, surface roughness and shape and position tolerance of the workpiece should meet the drawing requirements. For example, see Figure 3 ~ Figure 4 , the workpiece to be processed is provided with a tapered hole 1, and the keyway 2 to be processed is arranged in the tapered hole 1. Assume that the width of the keyway 2 to be processed is W, and the depth (height) is H.

[0054] Among them, before machining the keyway, according to the requirements of the drawings, the keyway processing line ...

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Abstract

The invention discloses a processing method of an internal keyway of a conical hole, belonging to the field of machining. The process method comprises the following steps of: providing a workpiece to be processed, wherein the workpiece to be processed is internally provided with a conical hole; vertically placing the workpiece to be processed on a cutting workbench and keeping one end with smaller aperture of the conical hole to face upwards, so as to enable the central line of the conical hole to be parallel to the movement track of a cutter; determining the center position of the conical hole; with the center position of the conical hole as a reference, beginning to vertically cutting the workpiece to be processed from one end with smaller aperture of the conical hole to obtain a vertical keyway, wherein the vertical keyway forms the top of a keyway to be processed, and two side surfaces of the vertical keyway are symmetrical relative to the center position of the conical hole; putting the workpiece to be processed on a tool with an inclined surface and enabling the generatrix of the conical hole to parallel to the movement track of the cutter; with two side surfaces of the vertical keyway as references, determining the center position of the keyway to be processed; and with the center position of the keyway to be processed and the bottom surface of the one end with smaller aperture of the conical hole as references, vertically cutting the workpiece to be processed to obtain the processed keyway. The processing method disclosed by the invention can achieve the purpose of batch processing.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a method for processing a keyway in a tapered hole. Background technique [0002] The keyway matches the key and is used to install the key. Typically, keyways are machined on the shaft or in the bore. Wherein, when the keyway is processed in the hole, the movement trajectory of the tool cutting the keyway is the direction of the generatrix of the keyway; the machining positioning surface is a surface perpendicular or parallel to the center line of the hole. [0003] In particular, when the hole is a tapered hole, since the generatrix of the tapered hole is not parallel to the center line of the hole, the movement track of the tool is neither parallel nor perpendicular to the positioning surface, so it is difficult to process the keyway in the tapered hole. The existing way of machining the keyway in the tapered hole is to adopt a slotting machine and a fitter to process th...

Claims

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Application Information

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IPC IPC(8): B23D79/00
Inventor 刘丽飞程涛田楠魏巍
Owner WUHAN MARINE MACHINERY PLANT
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