Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-station straight-tooth broach for machining turbine disc mortise and machining method thereof

A straight-toothed broach and multi-station technology, which is applied to broaches, metal processing equipment, broaching machines, etc., can solve the problems of increased dimensional error, shortened life of tools and machine tools, and reduced surface quality of tenon and groove. High efficiency, improved processing stability and precision, and long service life

Active Publication Date: 2018-02-02
CENT SOUTH UNIV +1
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the broaching of the tenon and groove of the turbine disk, the broach is used to broach the two side grooves of each section of the tenon and groove respectively. Due to the jumping and alternating cutting force of the straight-toothed broach, it is inevitable It will lead to a series of problems such as shortening the life of the tool and the machine tool, reducing the surface quality of the tongue and groove, and increasing the dimensional error.
However, there is no prior art that solves the above problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-station straight-tooth broach for machining turbine disc mortise and machining method thereof
  • Multi-station straight-tooth broach for machining turbine disc mortise and machining method thereof
  • Multi-station straight-tooth broach for machining turbine disc mortise and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as Figure 1 to Figure 4 As shown, the multi-station straight-toothed broach for processing the tenon and groove of the turbine disk in this embodiment includes a broach body 1, and a broaching unit is arranged on the broaching body 1, and each broaching unit is used for Corresponding to processing a groove section 101 of the tenon groove 100, each broaching processing unit includes two rows of teeth rows for respectively processing the two side groove bodies 102 of the corresponding groove section 101, and the tooth rows include several rows along the axial direction of the broach body 1, etc. For broaching straight teeth 2 arranged in tooth pitch, the tooth pitches of the two rows of teeth in the same broaching processing unit are equal, the lengths of the cutting edges 20 of all the broaching straight teeth 2 in the two rows of teeth are the same, and the broaching of the two rows of teeth The cutting edge 20 of the straightened tooth 2 is misaligned by half a t...

Embodiment 2

[0034] The multi-station straight-toothed broach for processing the tenon and groove of the turbine disk in this embodiment is basically the same as that in Embodiment 1, the main difference is that, as Figure 6 As shown, in this embodiment, the broach body 1 is provided with two broaching units, and the two broaching units respectively correspond to the two groove segments 101 of the tenon and groove 100 . In other embodiments, more than three broaching processing units may be provided on the broach body 1 to simultaneously process more groove segments 101 of the tongue and groove 100 .

[0035] The multi-station (4-station) straight-toothed broach of this embodiment can simultaneously process the two groove segments 101 of the tenon and groove 100, and its processing efficiency is higher. If the machine tool vibrates, vibration reduction or vibration isolation can be achieved through small damping, which makes it easier to achieve vibration control and improve the service l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multi-station straight-tooth broach for machining a turbine disc mortise and a machining method thereof. The multi-station straight-tooth broach comprises a broach body whichis provided with one or more broaching machining units, wherein each broaching machining unit is used for correspondingly machining one mortise section of the mortise, and each broaching machining unit comprises two tooth rows used for separately machining two side mortise bodies of the corresponding mortise section; and each tooth row comprises multiple broaching straight teeth which are axiallyarranged at equal tooth intervals along the broach body, the tooth intervals of the two tooth rows in the same broaching machining unit are equal, and cutting edges of the broaching straight teeth ofthe two tooth rows are dislocated by half tooth interval in the axial direction of the broach body. The method comprises the steps that the multi-station straight-tooth broach is used for machining the mortise, and the thickness of the mortise is equal to integer multiples of the tooth interval of the two tooth rows in each broaching machining unit. The multi-station straight-tooth broach for machining the turbine disc mortise has the advantages of being capable of avoiding cutting force jumping and alternating and decreasing the vibration isolation coefficient, long in service life, good inmachining quality and the like.

Description

technical field [0001] The invention relates to the technical field of turbine disk manufacturing and processing, in particular to a multi-station straight-toothed broach for processing the tenon and groove of a turbine disk and a processing method thereof. Background technique [0002] In the broaching of the tenon and groove of the turbine disk, the broach is used to broach the two side grooves of each section of the tenon and groove respectively. Due to the jumping and alternating cutting force of the straight-toothed broach, it is inevitable Appearing, it will lead to a series of problems such as shortening the life of the tool and the machine tool, reducing the surface quality of the tenon and groove, and increasing the dimensional error. However, there is currently no prior art that solves the above-mentioned problems. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23D43/00B23D37/00
CPCB23D37/00B23D43/00
Inventor 唐进元陈雪林关健鹏
Owner CENT SOUTH UNIV