CN209288989U - Face lapping mill - Google Patents
Face lapping mill Download PDFInfo
- Publication number
- CN209288989U CN209288989U CN201821756045.1U CN201821756045U CN209288989U CN 209288989 U CN209288989 U CN 209288989U CN 201821756045 U CN201821756045 U CN 201821756045U CN 209288989 U CN209288989 U CN 209288989U
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- components
- chuck
- motor
- lapping mill
- face lapping
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model is a kind of plane lapping equipment, belongs to valve field, is mainly used for the grinding of valve sealing face.Face lapping mill is mainly made of motor (1), workbench (2), bearing (4), turntable (5), chuck (6), control cabinet (8), floor push (3) and abrasive disk (9).Main operational principle is that motor drives chuck rotation, is rotated by clamping chuck components or milling tool, and operator's handheld abrasive tool or components are ground, to make to be placed on milling tool and components realization grinding movement.The face lapping mill structure is simple, and revolving speed can be adjusted, applied widely, is mainly used for grinding various flat seal faces.
Description
Technical field
The utility model relates to a kind of plane lapping equipment, belong to valve field.
Background technique
Grinding be guarantee valve sealing face surface roughness important means, valve seal surface roughness be usually 0.1 with
On, machining equipment 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, strong applicability,
Abrasive disk only does the rotation of circumferencial direction, drives the abrasive disk (or components) being placed on chuck to generate rotation by motor, real
Now grinding movement.
Summary of the invention
Oscillating mill described in the utility model is mainly by motor (1), workbench (2), bearing (4), turntable (5), card
Disk (6), control cabinet (8), floor push (3) and abrasive disk (9) composition.Main operational principle is that motor drives chuck rotation, is led to
Clamping chuck components (or milling tool) rotation is crossed, operator's handheld abrasive tool (or components) is ground, to make
It is placed on milling tool and components 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;
Motor drives turntable and chuck rotation, and clamping chuck is versatile;
It is equipped with floor push, can be achieved to open in the course of work and stop, safety is higher;
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
It is the structural schematic diagram of face lapping mill as shown in Figure 1
In figure, 1. motors, 2. workbench, 3. floor push, 4. bearings, 5. turntables, 6. chucks, 7. desk lamps, 8. controls
Cabinet, 9. abrasive disks
Specific embodiment
The grinding range of abrasive disk is the flat seal pair within DN10-DN300, mainly includes various valve flaps, valve
Seat etc..
Grinding rate is usually 10-150 revs/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) face lapping mill 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) milling tool should be ground on abrasive disk first, keep abrasive tool surface smooth.
5) it is rotated by clamping chuck components (or milling tool), operator's handheld abrasive tool (or components) makes to grind
Grinder tool produces very brief opposite sliding with components sealing surface, 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 (5)
1. a kind of face lapping mill, it is characterised in that: it includes motor (1), workbench (2), bearing (4), turntable (5), chuck
(6), control cabinet (8), floor push (3) and abrasive disk (9) composition, motor drive chuck rotation, pass through clamping chuck components
Or milling tool rotation, operator's handheld abrasive tool or components are ground, to make to be placed on milling tool and components
Realize grinding movement.
2. face lapping 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. face lapping mill according to claim 1, it is characterised in that: motor drives turntable and chuck rotation.
4. face lapping mill according to claim 1, it is characterised in that: be equipped with floor push, can be achieved in the course of work
It opens and stops.
5. face lapping mill according to claim 1, it is characterised in that: the abrasive disk used selects gray cast iron, contains
Flake graphite is suitable for fine gtinding using the cast iron of the pearlitic structrure of hardness HB120-220.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821756045.1U CN209288989U (en) | 2018-10-19 | 2018-10-19 | Face lapping mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821756045.1U CN209288989U (en) | 2018-10-19 | 2018-10-19 | Face lapping mill |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209288989U true CN209288989U (en) | 2019-08-23 |
Family
ID=67647038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821756045.1U Active CN209288989U (en) | 2018-10-19 | 2018-10-19 | Face lapping mill |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209288989U (en) |
-
2018
- 2018-10-19 CN CN201821756045.1U patent/CN209288989U/en active Active
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