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A kind of spherical hob manufacturing method

A manufacturing method, spherical technology, applied in the field of tool manufacturing, can solve the problems of long time-consuming and high processing costs of spherical hobs, and achieve the effects of saving design and manufacturing costs, improving processing efficiency, and reducing manufacturing costs

Inactive Publication Date: 2014-10-15
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these processing methods inevitably require a complex tooth-removal process, which is the process that takes the longest time and has the highest processing cost in the manufacturing process of spherical hobs.

Method used

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  • A kind of spherical hob manufacturing method
  • A kind of spherical hob manufacturing method
  • A kind of spherical hob manufacturing method

Examples

Experimental program
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Embodiment Construction

[0022] 1. The processing of the blade: the structure of the blade is as follows: figure 1 as shown,

[0023] (1) Reasonable selection of gear shaper cutter:

[0024] Select the size of the gear shaper cutter according to the required modulus and diameter of the spherical hob, and determine the number of gear shaper cutters required according to the number of blades of the hob and the number of teeth of the gear shaper cutter, so as to save the gear shaper cutter to the greatest extent.

[0025] (2) Grinding:

[0026] On the surface grinder, use the small end face of the gear shaper cutter as a reference to roughly grind the large end face. Grind the rake angle on the blade to 0°.

[0027] (3) Wire EDM:

[0028] Based on the large end face, the wire cutting gear shaper is used to process the width of the gear shaper to half of the width of the tooth groove on the cutter body. Based on the small end face of the gear shaper cutter and the outer circle of the cutter teeth, th...

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Abstract

A method for manufacturing a spherical hob mainly includes selecting a gear sharper cutter, grinding the gear sharper cutter and cutting the gear sharper cutter by an electric discharge wire to machine a blade; discharging a material, roughly turning the material, machining an inner hole of the material, carrying out semi-finish turning, inserting a key slot, turning a chamfer on the key slot, roughly milling and carrying out semi-finish milling for a blade groove, turning a spiral support plate of a hob body, finely milling the blade groove, carrying out thermal treatment and grinding so as to machine the hob body; and mounting a small retainer ring on the hob body at first, then placing the blade in the blade groove, placing a clamping wedge in the blade groove, mounting another small retainer ring on the other side of the hob body, grinding a left stepped surface of the blade and an outer circle of a left plumber block of the hob body on a grinder in a unified manner, grinding a right stepped surface of the blade and an outer circle of a right plumber block of the hob body on the grinder in a unified manner; respectively arranging two large retainer rings on two sides of the hob body by means of hot charging, and grinding the inner hole. The method has the advantages that a complex form-relieve tooth machining process during manufacture of the spherical hob can be omitted, and manufacturing cost of the spherical hob can be lowered.

Description

technical field [0001] The invention relates to a method for manufacturing a cutting tool, in particular to a method for manufacturing a spherical hob. Background technique [0002] A spherical hob is a generating tool used to machine large internal gears. The key problem in the manufacture of spherical hobs is the relief tooth. The tooth shape distribution is a spherical helical structure. Due to the particularity of this structure, the processing method of ordinary hobs is no longer applicable. Some people propose to carry out the shoveling processing of the spherical hob on a completely modified or newly designed shoveling machine tool, and some people propose to perform shoveling processing on a general-purpose five-coordinate CNC milling machine. However, these processing methods inevitably require a complex tooth-shoveling process, and the tooth-shoveling process is the process that takes the longest time and has the highest processing cost in the manufacturing proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/28
Inventor 胡占齐郝哲张小芹
Owner YANSHAN UNIV
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