CN1014876B - Coreless grinding technology for slender precision aluminium-alloy shaft - Google Patents
Coreless grinding technology for slender precision aluminium-alloy shaftInfo
- Publication number
- CN1014876B CN1014876B CN 88105110 CN88105110A CN1014876B CN 1014876 B CN1014876 B CN 1014876B CN 88105110 CN88105110 CN 88105110 CN 88105110 A CN88105110 A CN 88105110A CN 1014876 B CN1014876 B CN 1014876B
- Authority
- CN
- China
- Prior art keywords
- grinding
- millimeter
- wheel
- guide
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The present invention relates to a centreless grinding technology which solves the problem that a turning technology can not process an aluminium needle bar. The present invention is mainly characterized in that a trimming wheel is accurately balanced, work piece height is controlled, a guide plate is regulated, grinding depth is controlled in t-[coarse] = 0.02 millimeter and t-[fine] = 0.004 to 0.008 millimeter, work piece is controlled within 0.03 to 0.06 millimeter, roundness is controlled within 0.01 millimeter, straightness is controlled within 0.01 millimeter/ 100 millimeters, and smooth finish is 0.8. The present invention is mainly used for grinding precise long and thin shaft made of aluminium alloy, particularly high-speed aluminium needle bars with flat seams, etc.
Description
The present invention relates to a kind of coreless grinding technology of aluminium alloy slender axles, particularly be used for grinding high speed parallel sewing machine aluminium shank.
Because the aluminium alloy material is soft, fusing point is low, usually stops up emery wheel, so in some technology books the cylindricalo grinding of soft materials such as aluminium alloy is recommended to adopt black or green silicon carbide emery wheel, soft durometer and gross blow hole tissue; Contact area should adopt coarseness greatly during centerless grinding, even so, still is difficult to control workpiece size, form error and surface roughness concerning the slender axles part, therefore is difficult to find a kind of comparatively effectively process.
The object of the present invention is to provide a kind of coreless grinding technology (longitudinal grinding method) of aluminium alloy slender axles, can realize the aluminium alloy slender axles by selection to concrete technical data, especially the processing of high speed parallel sewing machine aluminium shank, and reach its specification requirement.
The objective of the invention is to realize by following process steps: at first select the white fused alumina emery wheel for use, its granularity is 60
#～80
#, hardness is soft in being, is organized as medium; Accurate balance emery wheel before the grinding, and trimming wheel; Strengthen the pressure and the flow of cooling-lubricant; By formula A is emery wheel and the guide wheel line of centres distance apart from supporting plate in H=A+ (d)/2+h(formula, and d is a diameter of work, and h is the value that workpiece centre exceeds the emery wheel center), adjust the workpiece height, wherein h value exceeds 1～2 millimeter than the grinding steel part value of stipulating; Guide plate before and after adjusting, front guide transfer to 0.005～0.01 millimeter afterwards of guide wheel wheel rim, and back guide transfers to 0.01～0.015 millimeter afterwards of guide wheel wheel rim; Adjust the workpiece pace, its scope is 10～20 mm/second, and the finishing guide wheel; Adjust grinding depth, its scope is 0.01～0.02 millimeter during corase grind, is 0.004～0.008 millimeter during correct grinding; The workpiece of sending to through turning that leaves grinding allowance carries out grinding, and grinding for several times.
Advantage of the present invention is: through the aluminium alloy slender axles of centerless grinding, can reach 0.005 millimeter/100 millimeters of straight degree, 0.003 millimeter of circularity, dimensional accuracy can be controlled in 0.005 millimeter, surface roughness Ra 0.4; All right friction feeding, the production efficiency height is compared with turning process, improves 10～15 times.This technology is the desirable process of processing aluminium alloy slender axles.
Accompanying drawing is the processing schematic diagram according to the high speed parallel sewing machine aluminium shank of a most preferred embodiment of the present invention.
The workpiece surplus is controlled between 0.03～0.06 millimeter before the grinding, and circularity is 0.01 millimeter, and straight degree is in 0.02 millimeter/100 millimeters, surface roughness Ra 1.6.Centerless grinder M1040 is adopted in processing; Select the white fused alumina emery wheel for use, its particle size range can be 60
#～80
#, be preferably 80
#, hardness be in soft ZR
2, be organized as mediumly, adopt emery wheel that emery wheel is not stopped up by abrasive dust than fine granularity, middle soft durometer, medium tissue, can keep the perfect form of emery wheel again, and then reach the less purpose of workpiece surface roughness; Accurate balance emery wheel before the processing, and repair, feeding depth is 0.02～0.05 millimeter when slightly repairing, and the diamond movement velocity is 150 millimeters/minute, and feeding depth is 0.005～0.01 millimeter during refine, and diamond speed is 132 millimeters/minute; Strengthen the pressure and the flow of cooling-lubricant, and filter through strictness; By formula H=A+ (d)/2+h=190+, 7.2/2+5.3=198.9 millimeter is adjusted workpiece height (the h value according to data regulation mill steel part is 3.6 millimeters), and workpiece is crossed low meeting and produced prismatic roundness, and too high then workpiece is beated; Adjust forward and backward guide plate: front guide transfers to 0.005～0.01 millimeter afterwards of guide wheel wheel rim, and back guide transfers to 0.01～0.015 millimeter afterwards of guide wheel wheel rim, and this two value is excessive, easily is just dolioform after the workpiece processing, and this two value is too small, then is anti-dolioform; Adjust the workpiece pace, its scope is 10～20 mm/second, and the finishing guide wheel, and guide wheel is the corundum wheel of gum cement, and its granularity is 120
#, hardness is Y1; Adjust grinding depth, the scope of grinding depth is 0.01～0.02 millimeter during corase grind, is 0.004～0.008 millimeter during correct grinding, and grinding depth is less, and then abrasive dust is less, and emery wheel is difficult for blocked, and caloric value is also little, avoids the material fusing; Send to and carry out grinding through turning and the workpiece that leaves grinding allowance and preferably finish grind 1～2 time.
Claims (3)
1, a kind of coreless grinding technology of aluminium alloy slender axles part comprises the steps:
A. select the white fused alumina emery wheel for use, accurate balance emery wheel before the grinding, and trimming wheel;
B. strengthen the pressure and the flow of cooling-lubricant;
C. by formula H=A+ (d)/2+h adjusts the workpiece height;
D. adjust forward and backward guide plate;
E. adjust workpiece pace and finishing guide wheel;
F. adjust grinding depth;
G. the workpiece of sending to through turning that leaves grinding allowance carries out grinding, and the regrinding of laying equal stress on is cut for several times;
It is characterized in that:
The granularity of-described emery wheel is 60
#～80
#, hardness be in soft ZR
2, be organized as medium;
H value in the-described workpiece height exceeds 1～2 millimeter than regulation grinding steel part value;
In the guide plate, this front guide transfers to 0.005～0.01 millimeter afterwards of guide wheel wheel rim before and after the-described adjustment, and this back guide transfers to 0.01～0.015 millimeter afterwards of guide wheel wheel rim;
-described workpiece forward speed range is 10～20 mm/second;
-described grinding depth scope is 0.004～0.02 millimeter.
2, a kind of by the described grinding process of claim 1, it is characterized in that described guide wheel is the corundum wheel of gum cement.
3, a kind of by the described grinding process of claim 2, it is characterized in that described guide wheel adopts granularity 120
#, hardness Y1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105110 CN1014876B (en) | 1988-08-17 | 1988-08-17 | Coreless grinding technology for slender precision aluminium-alloy shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105110 CN1014876B (en) | 1988-08-17 | 1988-08-17 | Coreless grinding technology for slender precision aluminium-alloy shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031039A CN1031039A (en) | 1989-02-15 |
| CN1014876B true CN1014876B (en) | 1991-11-27 |
Family
ID=4833340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105110 Expired CN1014876B (en) | 1988-08-17 | 1988-08-17 | Coreless grinding technology for slender precision aluminium-alloy shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014876B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408268C (en) * | 2006-04-12 | 2008-08-06 | 万向钱潮股份有限公司 | Control method for surface burning of conical roller |
| CN102773776A (en) * | 2012-08-21 | 2012-11-14 | 宝钢发展有限公司 | Bar centerless grinding technology and special knife board adjusting device thereof |
| CN103100957A (en) * | 2013-01-24 | 2013-05-15 | 汪正友 | Digitization regulating mode of guide plate of polishing machine |
| CN104842229B (en) * | 2015-06-10 | 2017-03-01 | 重庆跃进机械厂有限公司 | Long rod part centreless grinding processing method |
| CN106897484B (en) * | 2017-01-09 | 2020-02-07 | 西北工业大学 | Method for obtaining high-efficiency low-stress grinding technological parameters of high-temperature alloy |
| CN108274309A (en) * | 2018-01-26 | 2018-07-13 | 重庆聚伯雅科技有限公司 | A kind of polishing grinding method for shaft member |
-
1988
- 1988-08-17 CN CN 88105110 patent/CN1014876B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031039A (en) | 1989-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6991525B2 (en) | Method and device for the surface machining of workpieces composed of non-brittle materials in optical lens manufacturing and tool for this purpose | |
| CN100562387C (en) | The lathe that is used for the machined optical work | |
| US5209020A (en) | Method of and apparatus for profiling grinding wheels | |
| US5720649A (en) | Optical lens or lap blank surfacing machine, related method and cutting tool for use therewith | |
| US2352146A (en) | Grinding and polishing machine | |
| CN100522530C (en) | Moulding board for controlling diamond milling cutter or like component movement mounted on the stone stock or marble slab edge burnishing machine | |
| US20040178528A1 (en) | Method and device for edge-machining of a plastic optical lens and a combination tool therefor | |
| JPH0775944A (en) | Brittle material machining method and device therefor | |
| CN1014876B (en) | Coreless grinding technology for slender precision aluminium-alloy shaft | |
| JP2010076013A (en) | Polishing method of rotary grindstone and polishing apparatus, grinding grindstone and grinding apparatus using the grindstone | |
| CN1174110A (en) | Spherical part track forming processing method and device | |
| JP5300939B2 (en) | Machining method using finishing tools | |
| US5179931A (en) | Working gemstones | |
| JP3403213B2 (en) | Grooving method and grooving device | |
| JP3789672B2 (en) | Grinding method | |
| JPS5964275A (en) | Method and device for dressing grind stone | |
| US5501630A (en) | Method for grinding needle points on surgical grade needle blanks | |
| CN210548597U (en) | Numerical control spiral bevel gear grinding machine | |
| JP4425441B2 (en) | Machining center tool correction or remanufacturing method, and machining center | |
| JP3630950B2 (en) | Manufacturing method of spherical lens | |
| US2643492A (en) | Grinding machine and method | |
| JP3989211B2 (en) | High smooth grinding method | |
| CN214920816U (en) | CBN round nose milling cutter with negative chamfer design | |
| JPS59134660A (en) | Automatic type double compensating grind stone regulator | |
| CN214770848U (en) | Novel ball cutter with highlight damping cutting edge design |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |