Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Efficient machining method of precise valve hole

A processing method and valve hole technology, which is applied in the field of mechanical processing, can solve the problems of insufficient precision, low product qualification rate, and high processing cost, and achieve the effects of improving physical properties, processing efficiency, and dimensional accuracy

Inactive Publication Date: 2016-02-24
贵州凯星液力传动机械有限公司
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above technical problems, the present invention aims to provide a high-efficiency processing method for precision valve holes, so as to solve the problems of unsatisfactory accuracy, low product qualification rate, long processing cycle, Problems such as low efficiency, high labor intensity, high scrap rate and high processing cost

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
  • Efficient machining method of precise valve hole
  • Efficient machining method of precise valve hole
  • Efficient machining method of precise valve hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Drilling: Use a φ9.5mm drill bit to drill a precision valve hole 2 on the valve body 1. The hole depth of the precision valve hole 2 is 90.57mm; Reaming: Use a φ9.7mm flat-bottomed drill to ream the hole, and the precision valve hole after reaming The hole depth of 2 is 90.57mm; rough reaming: use rough reamer 3 to process the hole to φ9.98mm, use kerosene cooling during the processing, cutting amount V=6m / min, f=0.7mm / n, speed 300r / min ; Fine reaming: use fine reamer 4 to process the hole to φ10mm, the processing process adopts kerosene cooling, the cutting amount V=4m / min, f=0.5mm / n, and the speed is 200r / min; edgeless reaming squeezes the hole: Several groups of edgeless reaming knives are used to process the precision valve hole 2 sequentially, and the bladeless reaming knives 5 are installed in the floating chuck for processing. The cutting amount V=2m / min, f=0mm / n, and the speed is 100r / min, kerosene cooling, the outer diameter of the edgeless reamer 5 increases ...

Embodiment 2

[0053] Drilling: Use a φ9.5mm drill bit to drill a precision valve hole 2 on the valve body 1. The hole depth of the precision valve hole 2 is 90.43mm; Reaming: Use a φ9.7mm flat-bottomed drill to ream the hole, and the precision valve hole after reaming The hole depth of 2 is 90.43mm; rough reaming: use rough reamer 3 to process the hole to φ9.98mm, use kerosene cooling during the processing, cutting amount V=6m / min, f=0.7mm / n, speed 300r / min ; Fine reaming: use fine reamer 4 to process the hole to φ10mm, the processing process adopts kerosene cooling, the cutting amount V=4m / min, f=0.5mm / n, and the speed is 200r / min; edgeless reaming squeezes the hole: Several groups of edgeless reaming knives are used to process the precision valve hole 2 sequentially, and the bladeless reaming knives 5 are installed in the floating chuck for processing. The cutting amount V=2m / min, f=0mm / n, and the speed is 100r / min, kerosene cooling, the outer diameter of the edgeless reamer 5 increases ...

Embodiment 3

[0055] Drilling: use a φ9.5mm drill bit to drill a precision valve hole 2 on the valve body 1, and the hole depth of the precision valve hole 2 is 90.5mm; reaming: use a φ9.7mm flat bottom drill to ream the hole, and the precision valve hole after reaming The hole depth of 2 is 90.5mm; rough reaming: use rough reamer 3 to process the hole to φ9.98mm, use kerosene cooling during the processing, cutting amount V=6m / min, f=0.7mm / n, speed 300r / min ; Fine reaming: use fine reamer 4 to process the hole to φ10mm, the processing process adopts kerosene cooling, the cutting amount V=4m / min, f=0.5mm / n, and the speed is 200r / min; edgeless reaming squeezes the hole: Several groups of edgeless reaming knives are used to process the precision valve hole 2 sequentially, and the bladeless reaming knives 5 are installed in the floating chuck for processing. The cutting amount V=2m / min, f=0mm / n, and the speed is 100r / min, kerosene cooling, the outer diameter of the edgeless reamer 5 increases ...

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

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
surface roughnessaaaaaaaaaa
surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an efficient machining method of a precise valve hole; and the method comprises such steps as drilling, broaching, rough reaming, finish reaming, no-edge reaming and extrusion of a chip extruding hole and inspection. The efficient machining method can effectively solve such problems as incapability of achieving the precision requirement, low product pass percent, long machining period, low efficiency, high labor intensity, high waste rate and high machining cost in machining of the precise valve hole in the prior art; the product pass percent is greatly improved; the roughness Ra of the machined hole reaches 0.8-0.4 micron; the ovality error is within 0.01-0.02 mm; the taper error is within 0.01-0.025 mm; the hole size precision can be controlled within 0.01 mm; and the product pass percent reaches above 99%.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an efficient processing method for precision valve holes. Background technique [0002] processed as figure 1 When the precision valve hole on the valve body is shown, the material of the valve body is cast iron HT250, and the diameter of the precision valve hole is φ10.3 +0.027 , the coaxiality requirement is φ0.025mm, the cylindricity requirement is φ0.02mm, and the surface roughness Ra value is 0.8μm. It can be seen from the technical requirements that this valve body part requires relatively high hole system processing, shape tolerance and surface roughness, and its φ10.3 +0.027 The hole depth is 90.5mm, which is a typical precision small deep hole product. Due to φ10.3 +0.027 The hole is a deep blind hole. The traditional high-efficiency steel ball extrusion processing method is not suitable for this blind hole processing, and the surface roughness Ra value...

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): B23P15/00
CPCB23P15/001
Inventor 汪植林
Owner 贵州凯星液力传动机械有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com