CN106312471A - Eccentric shaft turning method - Google Patents
Eccentric shaft turning method Download PDFInfo
- Publication number
- CN106312471A CN106312471A CN201611014298.7A CN201611014298A CN106312471A CN 106312471 A CN106312471 A CN 106312471A CN 201611014298 A CN201611014298 A CN 201611014298A CN 106312471 A CN106312471 A CN 106312471A
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- China
- Prior art keywords
- eccentric
- machining
- processing
- diameter
- outer circle
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000007514 turning Methods 0.000 title claims abstract description 16
- 238000003754 machining Methods 0.000 claims abstract description 15
- 230000007547 defect Effects 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the field of machining, in particular to an eccentric shaft turning method which includes the steps: checking whether a blank has defects or not, and milling a section machining center hole; machining a large end outer circle, controlling eccentric outer circle perpendicularity errors, reserving machining allowance and preparing for a next procedure; machining a small end outer circle similar to the large end outer circle, controlling outer circle perpendicularity errors, reserving diameter machining allowance and conveniently adjusting the next procedure; machining an eccentric outer circle by a special fixture, rough machining the surface of the eccentric outer circle and adjusting the distance between a reference axis and an eccentric axis to be 80mm. The center hole can serve as an auxiliary support of a mandrel, and a high-precision boring machine is generally selected to ensure a certain precision. The eccentric shaft turning method is simple in operation, machining is facilitated, machining quality and the machining method of a workpiece can be ensured, production efficiency is improved, and production cost is reduced.
Description
Technical field
The present invention relates to field of machining, be specifically related to eccentric shaft turning method.
Background technology
Eccentric shaft is the most typical, is also the vitals in the field such as automobile, train manufacture, but eccentric shaft
Processing be the difficult point in machining, especially in China, the process technology of eccentric shaft is the most traditional, and the precision of processing is also
The highest, have impact on actual application.Eccentric shaft has ladder eccentric shaft, the abnormity form such as eccentric shaft and light eccentric shaft, can transmit fortune
Move and moment of torsion, in automobile, train etc. are applied, play the function of power transmission.
Eccentric shaft axially in parallel but misaligned, the method for turning eccentric shaft is the most, as dual chuck method, three-jaw are made by oneself
Heart chuck method, four-jaw chuck method, eccentric chuck method, exclusive clamps general laws etc., eccentric shaft processing technique horizontal reverse Ying Liao enterprise
The ability of processing, especially for the processing of large eccentric axle.It is bigger that the processing of eccentric shaft belongs to difficulty in axial workpiece,
Modal method for turning has three-jaw method, four paws method, floral disc method and exclusive clamps general laws.
Traditional manufacturing process, the clamping of eccentric shaft has certain difficulty, in traditional turnery processing, it is desirable to operation
Technical ability strong, three-jaw turning method adapts to little deviator, eccentric throw is little, required precision is low situation, but it is higher to require that operator has
Theoretical Calculation ability；But the shortcoming of three-jaw turning method is the most obvious, as processing request majority is difficult to reach, load and unload time error
Be difficult to control to, processing time consuming etc..The situation that four paws turning method is applicable to single-piece, eccentric throw is big, precision is relatively low, it is desirable to operator's skill
Can be consummate, require height during clamping, but the actual operation of four paws turning method is poor, processing time consuming, the centering of workpiece, measurement bias
In time bothering than three-jaw method, unload workpiece, need again centering, measurement, do not have interchangeability to say.Special fixture turning method is permissible
Complete the task of processing, reduce labor intensity, improve interchangeability and the precision of eccentric shaft processing, but process relatively difficult, effect
Rate is low, especially for modern manufacturing, it is difficult to meet high accuracy, high efficiency requirement.
Summary of the invention
In order to solve the problems referred to above, the present invention provides a kind of simple to operate, convenient processing, and can guarantee that workpiece add working medium
Amount and processing method, improve production efficiency, reduces the eccentric shaft turning method of production cost.
Eccentric shaft turning method of the present invention, comprises the following steps:
The first step, blank to be checked whether existing defects, milling section machining center hole, centre bore can prop up as the auxiliary of mandrel
Hold, general selection high accuracy boring machine, it is ensured that certain precision；
Second step, processing holds greatly cylindrical, now needs to control the eccentric excircle error of perpendicularity, and leaves the surplus of processing, for
Next process is ready；
3rd step, processes small end cylindrical, similar to processing big end cylindrical, controls cylindrical vertical error, flows out the remaining of diameter processing
Amount, facilitates next process to adjust；
4th step, uses special fixture, roughing eccentric excircle surface, adjusts datum axis and eccentric shaft during processing eccentric excircle
The distance of line is 80mm, and parallelism tolerance is 0.03mm；
5th step, carries out heat treatment after roughing, whether inspection part reaches the technology requirement of processing；
6th step, refine centre bore；
7th step, polish big cross section, make the width in eccentric face reach 40.5mm, the distance of side to axial end is 128mm, axle
Surface accuracy is diameter 65h6, diameter 60h6；
8th step, polish light section, eccentric face width degree is 40mm, and the distance of side to end face is 278mm, requirement on machining accuracy
Reach diameter 65h6, diameter 55h6；
9th step, use fixture processing eccentric excircle, polish eccentric excircle surface, it is ensured that datum axis to eccentric axis away from
From for 80mm, parallelism tolerance is 0.03mm, eccentric a diameter of 225mm；
Tenth step, comprehensively checks product, it is desirable to the roughness on roughing axle surface reaches Ra1.6um, and outside bias
The roughness of circular surfaces reaches Ra0.8um；
11st step, surface carries out magnetic powder inspection, it is ensured that the quality of workpiece.
The present invention is simple to operate, convenient processing, and can guarantee that crudy and the processing method of workpiece, improves and produces effect
Rate, reduces production cost.
Detailed description of the invention
Eccentric shaft turning method of the present invention, comprises the following steps:
The first step, blank to be checked whether existing defects, milling section machining center hole, centre bore can prop up as the auxiliary of mandrel
Hold, general selection high accuracy boring machine, it is ensured that certain precision；
Second step, processing holds greatly cylindrical, now needs to control the eccentric excircle error of perpendicularity, and leaves the surplus of processing, for
Next process is ready；
3rd step, processes small end cylindrical, similar to processing big end cylindrical, controls cylindrical vertical error, flows out the remaining of diameter processing
Amount, facilitates next process to adjust；
4th step, uses special fixture, roughing eccentric excircle surface, adjusts datum axis and eccentric shaft during processing eccentric excircle
The distance of line is 80mm, and parallelism tolerance is 0.03mm；
5th step, carries out heat treatment after roughing, whether inspection part reaches the technology requirement of processing；
6th step, refine centre bore；
7th step, polish big cross section, make the width in eccentric face reach 40.5mm, the distance of side to axial end is 128mm, axle
Surface accuracy is diameter 65h6, diameter 60h6；
8th step, polish light section, eccentric face width degree is 40mm, and the distance of side to end face is 278mm, requirement on machining accuracy
Reach diameter 65h6, diameter 55h6；
9th step, use fixture processing eccentric excircle, polish eccentric excircle surface, it is ensured that datum axis to eccentric axis away from
From for 80mm, parallelism tolerance is 0.03mm, eccentric a diameter of 225mm；
Tenth step, comprehensively checks product, it is desirable to the roughness on roughing axle surface reaches Ra1.6um, and outside bias
The roughness of circular surfaces reaches Ra0.8um；
11st step, surface carries out magnetic powder inspection, it is ensured that the quality of workpiece.
The present invention is simple to operate, convenient processing, and can guarantee that crudy and the processing method of workpiece, improves and produces effect
Rate, reduces production cost.
Claims (1)
1. an eccentric shaft turning method, it is characterised in that comprise the following steps:
The first step, blank to be checked whether existing defects, milling section machining center hole, centre bore can prop up as the auxiliary of mandrel
Hold, general selection high accuracy boring machine, it is ensured that certain precision；
Second step, processing holds greatly cylindrical, now needs to control the eccentric excircle error of perpendicularity, and leaves the surplus of processing, for
Next process is ready；
3rd step, processes small end cylindrical, similar to processing big end cylindrical, controls cylindrical vertical error, flows out the remaining of diameter processing
Amount, facilitates next process to adjust；
4th step, uses special fixture, roughing eccentric excircle surface, adjusts datum axis and eccentric shaft during processing eccentric excircle
The distance of line is 80mm, and parallelism tolerance is 0.03mm；
5th step, carries out heat treatment after roughing, whether inspection part reaches the technology requirement of processing；
6th step, refine centre bore；
7th step, polish big cross section, make the width in eccentric face reach 40.5mm, the distance of side to axial end is 128mm, axle
Surface accuracy is diameter 65h6, diameter 60h6；
8th step, polish light section, eccentric face width degree is 40mm, and the distance of side to end face is 278mm, requirement on machining accuracy
Reach diameter 65h6, diameter 55h6；
9th step, use fixture processing eccentric excircle, polish eccentric excircle surface, it is ensured that datum axis to eccentric axis away from
From for 80mm, parallelism tolerance is 0.03mm, eccentric a diameter of 225mm；
Tenth step, comprehensively checks product, it is desirable to the roughness on roughing axle surface reaches Ra1.6um, and outside bias
The roughness of circular surfaces reaches Ra0.8um；
11st step, surface carries out magnetic powder inspection, it is ensured that the quality of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611014298.7A CN106312471A (en) | 2016-11-18 | 2016-11-18 | Eccentric shaft turning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611014298.7A CN106312471A (en) | 2016-11-18 | 2016-11-18 | Eccentric shaft turning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106312471A true CN106312471A (en) | 2017-01-11 |
Family
ID=57817234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611014298.7A Pending CN106312471A (en) | 2016-11-18 | 2016-11-18 | Eccentric shaft turning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106312471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478176A (en) * | 2021-06-30 | 2021-10-08 | 大连金华德精密轴有限公司 | Eccentric pin hole shaft machining method |
| CN117245341A (en) * | 2023-09-27 | 2023-12-19 | 大连德迈仕精密科技股份有限公司 | A method for processing eccentric deep hole shaft of compressor |
-
2016
- 2016-11-18 CN CN201611014298.7A patent/CN106312471A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478176A (en) * | 2021-06-30 | 2021-10-08 | 大连金华德精密轴有限公司 | Eccentric pin hole shaft machining method |
| CN113478176B (en) * | 2021-06-30 | 2023-02-28 | 大连金华德精密轴有限公司 | Eccentric pin hole shaft machining method |
| CN117245341A (en) * | 2023-09-27 | 2023-12-19 | 大连德迈仕精密科技股份有限公司 | A method for processing eccentric deep hole shaft of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |