CN109794826A - Lapping machine - Google Patents
Lapping machine Download PDFInfo
- Publication number
- CN109794826A CN109794826A CN201810461121.4A CN201810461121A CN109794826A CN 109794826 A CN109794826 A CN 109794826A CN 201810461121 A CN201810461121 A CN 201810461121A CN 109794826 A CN109794826 A CN 109794826A
- Authority
- CN
- China
- Prior art keywords
- abrasive disk
- bias
- grinding
- belt
- main shaft
- 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.)
- Withdrawn
Links
- 238000000227 grinding Methods 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 229910001060 Gray iron Inorganic materials 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000003801 milling Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to a kind of vibration grinding devices, belong to valve field, are mainly used for the grinding of valve sealing face.Lapping machine is mainly sewed (7), spring stop piece (8) and abrasive disk (9) by motor (1), belt pulley (2,4), belt (3), main shaft (5), bearing (6), bias and is formed.Main operational principle is that motor drives belt pulley (2) rotation, belt pulley (4) and main shaft (5) is driven to rotate under certain rotating ratio by belt (3), main shaft drives bias to sew (7) and rotates together, abrasive disk is set to generate the vibration of horizontal direction and circumferencial direction, to make the part being placed on abrasive disk generate rotation and revolution, grinding movement is realized.The lapping machine structure is simple, and vibration amplitude and vibration frequency can be adjusted, suitable for grinding the valve of the flat seals such as gate valve, shut-off valve pair.
Description
Technical field
The present invention relates to a kind of vibration milling apparatus, belong to valve field.
Background technique
Grinding is to guarantee the important means of valve sealing face surface roughness, and valve seal surface roughness is usually 0.1, machine
Oil (gas) filling device not can guarantee, therefore usually after the completion of valve sealing face machine adds, it needs to carry out grinding process.
Milling apparatus on the market is mainly star lapping machine and rocker-arm eccentric rotary grinder at present.Its abrasive disk is all
Rotation or revolution motion are done, structure is relative complex, and power consumption is larger.The structure of this milling apparatus is relatively easy, and abrasive disk is only
The vibration for doing circumference and horizontal direction drives the part being placed on abrasive disk to generate rotation and revolution, realizes grinding by shaking
Movement.
Summary of the invention
Lapping machine of the present invention is mainly by motor (1), belt pulley (2,4), belt (3), main shaft (5), bearing
(6), bias sews (7), spring stop piece (8) and abrasive disk (9) composition.Main operational principle is that motor drives belt pulley (2) rotation,
Belt pulley (4) and main shaft (5) is driven to rotate under certain rotating ratio by belt (3), main shaft drive bias is sewed (7) and turned together
It is dynamic, so that abrasive disk is generated the vibration of horizontal direction and circumferencial direction, so that the part being placed on abrasive disk be made to generate rotation and public affairs
Turn, realizes grinding movement.
Lap tool and the direction of workpiece relative motion are constantly changed, and the continuous variation of the direction of motion makes each abrasive grain will not be in work
Oneself motion profile is repeated on part surface, in order to avoid cause apparent polishing scratch and reduce the finish of workpiece.In addition, the direction of motion
Continuous variation to be also distributed grinding agent relatively uniform, so that more uniform cut workpiece surface metal；
Roughness after sealing surface grinding meets drawing requirement, according to the difference of material and the difference of milling time, generally
Between 0.1-0.2；
Motor selects three-phase asynchronous Ac motor, and frequency and revolving speed are adjustable；
There are a stable drive ratios for two belt pulleys, it is therefore an objective to reduce motor speed；
Main axis drives bias to sew rotation, and the size and location that bias is sewed can be adjusted, to change abrasive disk
Amplitude size.Bias is sewed heavier, and bias is sewed remoter apart from main shaft, and the amplitude of vibration of abrasive disk is bigger；
The flexible deformation of spring stop piece can be exchanged into the amplitude of abrasive disk, while play the role of protecting abrasive disk；
Abrasive disk selects gray cast iron, containing flake graphite, so wearability and lubricity are preferable, suitable for finely grinding
Mill, using the cast iron of the pearlitic structrure of hardness HB120-220, effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of lapping machine
In figure, 1. motors, 2. belt pulleys, 3. belts, 4. belt pulleys, 5. main shafts, 6. bearings, 7. bias sew, 8. spring catch
Piece, 9. abrasive disks
Specific embodiment
The grinding range of abrasive disk is the flat seal pair within DN10-DN300, mainly includes gate valve flap, valve seat, cuts
Only valve flap etc..
Grinding rate is usually 10-150 ms/min.
Grinding pressure calculates as follows:
P=P0NS
Wherein: P-- gross pressure (Kgf)
The parts count (a) that N-- is ground every time
P0-- unit pressure P0, generally take 0.1--3 kilograms per centimeter2
The each part real contact area of S-- (centimetre2)
Grinding efficiency is improved with the increase of grinding pressure.After grinding pressure increases, abrasive grain incision workpiece surface is deeper, cuts
The metal layer removed is also thicker.But grinding pressure cannot be excessive, otherwise can generate the excessively high phenomenon of cutting heat.Pressure can be big when slightly grinding
A bit, it is answered when lappingout smaller.
Operating method and points for attention:
1) lapping machine is first cleared up before grinding, it is ensured that the pollutants such as free from dust, iron filings on abrasive disk.
2) the defects of sealing surface of inspection workpiece, sealing surface is not allow for apparent tool marks, collides with.
3) abrasive pastes are uniformly smeared on abrasive disk.
4) workpiece is uniformly placed on abrasive disk.Make abrasive disk uniform force as far as possible when placing workpiece, in order to avoid influence
Vibrating effect.
5) workpiece being freely placed on abrasive disk is very brief because producing between the inertia of its own and the abrasive disk of vibration
Opposite sliding, to play the effect of grinding.
6) abrasive pastes for remaining in workpiece surface are wiped clean with cotton after workpiece grinding, check whether sealing surface grinding reaches
It is required that.Otherwise continue to grind.
Claims (6)
1. oscillating mill of the present invention, it is characterised in that: it includes motor (1), belt pulley (2,4), belt (3), master
Axis (5), bearing (6), bias sew (7), spring stop piece (8) and abrasive disk (9) composition；Main operational principle is that motor drives belt
(2) rotation is taken turns, drives belt pulley (4) and main shaft (5) to rotate under certain rotating ratio by belt (3), main shaft drives bias to sew
(7) it rotates together, abrasive disk is made to generate the vibration of horizontal direction and circumferencial direction, so that the part being placed on abrasive disk be made to generate
Grinding movement is realized in rotation and revolution.
2. oscillating mill according to claim 1, it is characterised in that: motor selects three-phase asynchronous Ac motor, frequency
Rate and revolving speed are adjustable.
3. oscillating mill according to claim 1, it is characterised in that: there are a stable drive ratio, purposes for two belt pulleys
It is to reduce motor speed.
4. oscillating mill according to claim 1, it is characterised in that: main axis drives bias to sew rotation, and bias is sewed
Size and location can be adjusted, to change the amplitude size of abrasive disk；Bias is sewed heavier, and bias is sewed gets over apart from main shaft
Far, the amplitude of vibration of abrasive disk is bigger.
5. oscillating mill according to claim 1, it is characterised in that: the flexible deformation of spring stop piece can be exchanged into grinding
The amplitude of disk, while playing the role of protecting abrasive disk.
6. oscillating mill according to claim 1, it is characterised in that: abrasive disk selects gray cast iron, contains sheet stone
Ink is suitable for fine gtinding so wearability and lubricity are preferable, using the cast iron of the pearlitic structrure of hardness HB120-220,
Effect is good.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461121.4A CN109794826A (en) | 2018-04-28 | 2018-04-28 | Lapping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461121.4A CN109794826A (en) | 2018-04-28 | 2018-04-28 | Lapping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109794826A true CN109794826A (en) | 2019-05-24 |
Family
ID=66556157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810461121.4A Withdrawn CN109794826A (en) | 2018-04-28 | 2018-04-28 | Lapping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109794826A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3451171A (en) * | 1966-11-29 | 1969-06-24 | Norton Co | Vibratory grinding machine |
| CN2124104U (en) * | 1992-05-13 | 1992-12-09 | 王锡明 | Vibration lapping machine |
| CN106903594A (en) * | 2017-02-24 | 2017-06-30 | 榆林学院 | A kind of woodwork fine gtinding device |
| CN206382982U (en) * | 2017-01-19 | 2017-08-08 | 东莞市凯保精密机械有限公司 | Open waterproof shakes sander |
| CN208391722U (en) * | 2018-04-28 | 2019-01-18 | 哈电集团哈尔滨电站阀门有限公司 | Lapping machine |
-
2018
- 2018-04-28 CN CN201810461121.4A patent/CN109794826A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3451171A (en) * | 1966-11-29 | 1969-06-24 | Norton Co | Vibratory grinding machine |
| CN2124104U (en) * | 1992-05-13 | 1992-12-09 | 王锡明 | Vibration lapping machine |
| CN206382982U (en) * | 2017-01-19 | 2017-08-08 | 东莞市凯保精密机械有限公司 | Open waterproof shakes sander |
| CN106903594A (en) * | 2017-02-24 | 2017-06-30 | 榆林学院 | A kind of woodwork fine gtinding device |
| CN208391722U (en) * | 2018-04-28 | 2019-01-18 | 哈电集团哈尔滨电站阀门有限公司 | Lapping machine |
Non-Patent Citations (1)
| Title |
|---|
| 上海机械厂: "振动研磨机", 机械制造, no. 06, pages 45 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101249632B (en) | Reciprocating straight-line and rotating motion grinding polishing device | |
| CN208391722U (en) | Lapping machine | |
| SG172157A1 (en) | Device for grinding both sides of flat workpieces | |
| CN205630203U (en) | Ponder machine | |
| CN112454154B (en) | Centrifugal grinder capable of changing angle | |
| CN109794826A (en) | Lapping machine | |
| CN100528483C (en) | Superfinishing grind stone and superfinishing method using the same | |
| CN207642907U (en) | A kind of disc-grinding mechanism being used for sanding and polishing and mirror finish lathe | |
| CN109676488B (en) | Small-volume independent double-shaft motion structure and polishing machine head applying same | |
| CN101704221B (en) | Conditioning ring driving mechanism for driving grinding device | |
| CN209288989U (en) | Face lapping mill | |
| CN206436093U (en) | Abrasive band mill apparatus | |
| CN102554759A (en) | Machining method for grinding oil circuit sealing rings | |
| CN206464966U (en) | Accurate centrifugal grinder | |
| CN101417408B (en) | Synchronous belt drive four-position plane grinding device | |
| CN201324973Y (en) | Synchronous belt drive two-position surface grinding machine | |
| CN102729148A (en) | Rotary diamond roller dresser | |
| CN108127549A (en) | Aluminium alloy lid class part plane grinders | |
| CN205703666U (en) | Copper cash buffing machine | |
| US2754636A (en) | Device for removing sharp edges from spaced projections | |
| JP3081293B2 (en) | Wheel oscillating device in rolling surface super finishing machine | |
| JPH0386493A (en) | Cutting device for sheet material | |
| CN215239784U (en) | Grinding machine for processing press-fit steel plate | |
| CN2170179Y (en) | Chamfer machine for shaft pin | |
| CN212043983U (en) | Numerical control grinding machine with scrap collecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 150046 No. 1, mat street, Xiangfang District, Heilongjiang, Harbin Applicant after: HARBIN POWER PLANT VALVE Co.,Ltd. Address before: Hanan Hanan Industrial Park core area three road 150066 Heilongjiang city of Harbin province No. 6 Applicant before: HARBIN POWER PLANT VALVE Co.,Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190524 |