CN103991027A - Technology for manufacturing resonant frequency tuning sheet - Google Patents
Technology for manufacturing resonant frequency tuning sheet Download PDFInfo
- Publication number
- CN103991027A CN103991027A CN201410247056.7A CN201410247056A CN103991027A CN 103991027 A CN103991027 A CN 103991027A CN 201410247056 A CN201410247056 A CN 201410247056A CN 103991027 A CN103991027 A CN 103991027A
- Authority
- CN
- China
- Prior art keywords
- grinding
- tuning
- abrasive disk
- disc
- resonant frequency
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a technology for manufacturing a resonant frequency tuning sheet. The technology comprises the following steps that firstly, rough grinding is conducted, wherein a grinding disc is taken down from a plane grinding machine, the tuning sheet adheres to the lower surface of the grinding disc, the grinding disc is installed on the plane grinding machine, a pressing disc is placed on the upper surface of the grinding disc, a balancing weight is added to the pressing disc, the rotation speed of a grinding wheel is set, and a certain amount of water is added to conduct primary grinding; step 2, fine grinding is conducted, wherein the grinding disc is taken down from the plane grinding machine, the tuning sheet adheres to the lower surface of the grinding disc, the grinding disc is installed on the grinding machine, the pressing disc is placed on the upper surface of the grinding disc, the balance weight is added to the pressing disc, the rotation speed of the grinding wheel is set, and a certain amount of water is added for further grinding; step 3, after the grinding machine stops working, the grinding disc is taken down from the grinding machine and the tuning sheet is washed. The technology is high in machining efficiency but the device machining cost is not increased. The toughness and the straightness of the tuning sheet are guaranteed, different kinds of deformation are avoided, operation is simple, and accuracy is guaranteed.
Description
Technical field
The present invention relates to the preparation technology of tuning of resonant frequency, especially in surface quality, require higher, thickness range is in the tuning attenuate of 0.1～0.5mm, the method can reach good effect, method of operating is simple, efficiency improves 40% than grinding, has both guaranteed machining accuracy, can not make again processing cost increase.
Background technology
Along with making rapid progress of science and technology, the sheet parts demand that glacing flatness is had relatively high expectations is increasing, such as packing ring, friction plate, model, thin plate etc.But in field of machining, have so proverb, claim " turner is afraid of elongated, and grinder is afraid of thin slice ", what say is that this two classes workpiece difficulty of processing is large, and work in-process is easily out of shape, and is not easy to guarantee the requirement on machining accuracy of part.In common mechanical structure grinding process, very easily due to Workpiece clamping distortion, cutting temperature distortion and cutting stress, be out of shape so that affect the precision of workpiece, particularly for thickness, be less than the thin slice of 0.5mm, general frame for movement is difficult to clamping and fixes, grinding efficiency is low, and grinding accuracy and grinding process system reset condition have much relations, especially the error of lathe itself, and high-precision machine tool is expensive, causes thin slice reduction process processing cost high.At present, also nobody proposed plane lapping and was used for thickness to be less than the tuning process of carrying out attenuate processing of 0.5mm.
Summary of the invention
In order to overcome in existing tuning attenuate processing method, when thickness of workpiece is less than 0.5mm, to be difficult to clamping and to fix, and machining accuracy is difficult to guarantee, working (machining) efficiency is low, high in cost of production technical problem, the present invention proposes a kind ofly can guarantee machining accuracy, tuning preparation technology of resonant frequency that working (machining) efficiency is high, cost is low.
The technical solution adopted for the present invention to solve the technical problems is: tuning preparation technology of resonant frequency of the present invention, comprises the steps:
Step 1: corase grind: on face lapping mill, take off abrasive disk, by tuning lower surface that sticks to abrasive disk, load onto abrasive disk, place platen at the upper surface of abrasive disk, be added on platen with balancing weight, grinding wheel speed is set, add suitable quantity of water and tentatively grind;
Step 2: fine grinding: on face lapping mill, take off abrasive disk, by tuning lower surface that sticks to abrasive disk, load onto abrasive disk, at the upper surface of abrasive disk, place platen, with balancing weight, be added on platen, grinding wheel speed is set, adds suitable quantity of water and further grind;
Step 3: after machine stops, taking off abrasive disk, tuning is cleaned.
Described emery wheel is diamond material.
In described corase grind step, balancing weight quality is 20 ± 0.5kg, and grinding rotating speed is 60 ± 5r/min, and milling time is 45min ± 30s.
In described fine grinding step, balancing weight quality is that 10 ± 0.5kg grinding rotating speed is 60 ± 5r/min, and milling time is 5min ± 30s.
The present invention proposes tuning preparation technology of a kind of resonant frequency, a kind of technique for tuning attenuate of resonant frequency, by roughly grinding and refine two procedures, form, concrete operation is: by tuning, stick to abrasive disk lower surface, abrasive disk is positioned on abrasive disc, upper surface at abrasive disk is placed a platen, place balancing weight and apply pressure at right angle, at tuning, add man-hour, add water as cooling fluid, to ensure sufficient cooling fluid, and suitably control the feed speed of trimming wheel, can reduce grinding heat like this, avoid part deformation.For larger tuning of area, Wheel hardness is selected moderate, makes emery wheel easily from sharp, avoids midway rust and generates heat.Often keep the sharp of emery wheel simultaneously, can reduce grinding force and grinding heat like this, to prevent that workpiece from ejecting or producing thermal deformation.The present invention is less than 30mm to the length of side or diameter, thickness is good especially at the tuning processing effect of 0.1～0.5mm, in process, there is not the problems such as clamping deformation, cutting temperature distortion, cutting stress distortion, can allow tuning to reach flatness 0.001～0.003mm, roughness reaches Ra0.8, and can to a plurality of tuning, carry out attenuate processing, process velocity can reach 1000cm simultaneously
2/ h, working (machining) efficiency improves 40% compared with grinding processing method, but does not increase tooling cost.And can guarantee roughness and the glacing flatness of tuning, all kinds of distortion can not occur, simple to operate, precision is guaranteed.
Accompanying drawing explanation
Fig. 1 is the front view of tuning of existing resonant frequency;
Fig. 2 is that the application of technique of the present invention is the front view of tuning of resonant frequency;
Fig. 3 is the flow chart of technique of the present invention.
the specific embodiment:
Tuning preparation technology of resonant frequency of the present invention, comprises the steps:
Step 1: corase grind: on face lapping mill, take off abrasive disk, by tuning lower surface that sticks to abrasive disk, load onto abrasive disk, place platen at the upper surface of abrasive disk, be added on platen with balancing weight, grinding wheel speed is set, add suitable quantity of water and tentatively grind;
Step 2: fine grinding: on face lapping mill, take off abrasive disk, by tuning lower surface that sticks to abrasive disk, load onto abrasive disk, at the upper surface of abrasive disk, place platen, with balancing weight, be added on platen, grinding wheel speed is set, adds suitable quantity of water and further grind;
Step 3: after machine stops, taking off abrasive disk, tuning is cleaned.
Described emery wheel is diamond material.
In described corase grind step, balancing weight quality is 20 ± 0.5kg, and grinding rotating speed is 60 ± 5r/min, and milling time is 45min ± 30s.
In described fine grinding step, balancing weight quality is that 10 ± 0.5kg grinding rotating speed is 60 ± 5r/min, and milling time is 5min ± 30s.
Process chart of the present invention as shown in Figure 2.
Plane lapping of the present invention is cut thin processing for thin slice, effectively makes thin slice attenuate, has guaranteed flatness and the roughness of thin slice, and can not increase equipment cost.
The present invention adopts the method for plane lapping, tuning is bonded on abrasive disk, on abrasive disk, add platen, by adjusting the weight of balancing weight on platen, platen provides a certain size pressure at right angle to tuning, under the effect of pressure at right angle, between workpiece and abrasive disc, produce friction, friction makes tuning attenuate, and surface accuracy is high.
Process of lapping of the present invention needs
note what time as follows:
The tuning attenuate of stainless steel of take is example:
1, grinding rate is chosen as 60r/min,(contrast test was attempted 40 r/min, 50 r/min, 70 r/min, 80 r/min, grinding efficiency is generally directly proportional to grinding rate, but speed is too high, and not only precision is not easy to reach, and grinding rate is too fast will cause workpiece heating, can make on the contrary cutting output reduce.To abrasive disc diameter at 800-1000mm, rotating speed is generally 60 r/min, and grinding effect is better.
2, corase grind operation balancing weight is selected 20kg, and precision grinding process is selected 10kg balancing weight,(contrast test attempted roughly grinding the balancing weight that operation is used 15kg, 17.5kg, 22.5kg and 25kg, precision grinding process attempted using the balancing weight of 5kg, 7.5kg, 12.5kg and 15kg, experimental result shows, increasing within the specific limits balancing weight quality can improve grinding pressure and then boost productivity, but continuing to increase balancing weight quality efficiency improves not obvious, if balancing weight quality is less, grinding efficiency is lower.During this grinder corase grind, select 20kg balancing weight, fine grinding is selected 10kg balancing weight, and efficiency is higher.
3, in like manner, by contrast test, finally determine milling time, corase grind 45min ± 30s, fine grinding 5min ± 30s.
4, should select the emery wheel of diamond material,hardness is moderate, and hardness is too high, and the grains of sand are just not easy to drop, and the waste material grinding is just easily filled up the space between the grains of sand, makes rubbing surface more and more flat, has reduced grinding efficiency; Hardness is too low, and the grains of sand drop too soon, and the workpiece that also do not have enough time to rub just drops, and grinding efficiency does not reach requirement.
The front view that existing resonant frequency is tuning as shown in Figure 1, the application of technique of the present invention be tuning of resonant frequency front view as shown in Figure 2, from scheming, the flatness error of tuning of the resonant frequency of processes of the present invention reduces greatly, roughness also reduces greatly, and crudy obviously improves.
Claims (4)
1. tuning preparation technology of resonant frequency, is characterized in that comprising the steps:
Step 1: corase grind: on face lapping mill, take off abrasive disk, by tuning lower surface that sticks to abrasive disk, load onto abrasive disk, place platen at the upper surface of abrasive disk, be added on platen with balancing weight, grinding wheel speed is set, add suitable quantity of water and tentatively grind;
Step 2: fine grinding: on face lapping mill, take off abrasive disk, by tuning lower surface that sticks to abrasive disk, load onto abrasive disk, at the upper surface of abrasive disk, place platen, with balancing weight, be added on platen, grinding wheel speed is set, adds suitable quantity of water and further grind;
Step 3: after machine stops, taking off abrasive disk, tuning is cleaned.
2. tuning preparation technology of resonant frequency according to claim 1, is characterized in that described emery wheel is diamond material.
3. tuning preparation technology of resonant frequency according to claim 1, is characterized in that, in described corase grind step, balancing weight quality is 20kg ± 0.5kg, and grinding rotating speed is 60 ± 5 r/min, and milling time is 45min ± 30s.
4. tuning preparation technology of resonant frequency according to claim 1, is characterized in that in described fine grinding step, and balancing weight quality is that 10 ± 0.5kg grinding rotating speed is 60 ± 5r/min, and milling time is 5min ± 30s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247056.7A CN103991027A (en) | 2014-06-06 | 2014-06-06 | Technology for manufacturing resonant frequency tuning sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247056.7A CN103991027A (en) | 2014-06-06 | 2014-06-06 | Technology for manufacturing resonant frequency tuning sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103991027A true CN103991027A (en) | 2014-08-20 |
Family
ID=51305497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410247056.7A Pending CN103991027A (en) | 2014-06-06 | 2014-06-06 | Technology for manufacturing resonant frequency tuning sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103991027A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031671A (en) * | 1987-04-10 | 1989-03-15 | 河北农业大学 | Metallographic-sample polisher |
| JPH08290356A (en) * | 1995-02-24 | 1996-11-05 | Furukawa Electric Co Ltd:The | Abrasive and grinding method |
| CN101332584A (en) * | 2008-08-05 | 2008-12-31 | 天津市工具研究所有限公司 | Grinding method of sheet metal |
| CN103203681A (en) * | 2013-04-07 | 2013-07-17 | 大连理工大学 | Environment-friendly II-VI class soft fragile crystal grinding and polishing method |
| CN103534064A (en) * | 2011-05-27 | 2014-01-22 | 信越半导体株式会社 | Method for adjusting position of polishing head in heightwise direction, and method for polishing workpiece |
-
2014
- 2014-06-06 CN CN201410247056.7A patent/CN103991027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031671A (en) * | 1987-04-10 | 1989-03-15 | 河北农业大学 | Metallographic-sample polisher |
| JPH08290356A (en) * | 1995-02-24 | 1996-11-05 | Furukawa Electric Co Ltd:The | Abrasive and grinding method |
| CN101332584A (en) * | 2008-08-05 | 2008-12-31 | 天津市工具研究所有限公司 | Grinding method of sheet metal |
| CN103534064A (en) * | 2011-05-27 | 2014-01-22 | 信越半导体株式会社 | Method for adjusting position of polishing head in heightwise direction, and method for polishing workpiece |
| CN103203681A (en) * | 2013-04-07 | 2013-07-17 | 大连理工大学 | Environment-friendly II-VI class soft fragile crystal grinding and polishing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102922244A (en) | Processing method for realizing integrity of surface of titanium alloy impeller | |
| Shneor | Reconfigurable machine tool: CNC machine for milling, grinding and polishing | |
| CN101332584A (en) | Grinding method of sheet metal | |
| CN110587246B (en) | Manufacturing process of external tooth cylinder type broach finish cutting gear cutter head | |
| CN104526503A (en) | Integrated blade disk and blade tip curved surface numerical control grinding device and method | |
| CN103042448A (en) | Vertical disc grinder with double grinding heads and machining method implemented by vertical disc grinder | |
| CN101069961B (en) | Re-griding-cutting cube boron-nitride grinding-block device | |
| CN102773803A (en) | Precise finishing method of large abrasive grain diamond grinding wheel | |
| CN101934504A (en) | Novel ceramic bond cubic boron nitride grinding disc and production method thereof | |
| CN102407483A (en) | High-efficiency nano-precision reducing method for semiconductor wafer | |
| CN102211312B (en) | Large-cycle water-aqua grinding process for precision steel ball | |
| CN105121091A (en) | Method and grinding tool for highly accurate centre-less grinding of shaft parts with high surface quality | |
| Fiocchi et al. | Ultra-precision face grinding with constant pressure, lapping kinematics, and SiC grinding wheels dressed with overlap factor | |
| CN203918456U (en) | Numerical control turning, corase grind, fine grinding synchronous processing lathe | |
| CN203062465U (en) | Double-grinding-head vertical type disk grinding machine | |
| CN103707003B (en) | The processing method of tungsten titanium alloy plate | |
| CN103991027A (en) | Technology for manufacturing resonant frequency tuning sheet | |
| CN101966675B (en) | Production method for high-precision ultra-thin edge thick lens | |
| CN106590529A (en) | Composite wear-resisting abrasive material and application thereof | |
| CN102626901B (en) | Numerical control machining method for ball polishing wheel | |
| CN105522172A (en) | Aluminum alloy wheel mirror finishing process | |
| CN205237812U (en) | Grinding device of boron carnbide air -bearing | |
| CN105108608B (en) | Hard brittle material super-smooth surface adaptive machining method | |
| CN103042444B (en) | A kind of artificial diamond compact tool grinding method | |
| CN105196056A (en) | Numerical control lathing, rough grinding and fine grinding synchronous machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |