CN108637899A - A kind of abrasive flow machining grid group hole special fixture - Google Patents
A kind of abrasive flow machining grid group hole special fixture Download PDFInfo
- Publication number
- CN108637899A CN108637899A CN201810409956.5A CN201810409956A CN108637899A CN 108637899 A CN108637899 A CN 108637899A CN 201810409956 A CN201810409956 A CN 201810409956A CN 108637899 A CN108637899 A CN 108637899A
- Authority
- CN
- China
- Prior art keywords
- drainage plate
- grid
- hole
- fixture
- 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.)
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- 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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
- B24B31/116—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
Abstract
A kind of abrasive flow machining grid group hole special fixture, it includes：Fixture cover（1）, support ring（3）And fixture base（4）, fixture cover（1）And fixture base（4）It is separately mounted to support ring（3）Both ends, it is characterised in that the fixture cover（1）And fixture base（4）Be equipped with for abrasive flows by through-hole, in support ring（3）In cuboid clamp body is installed（2）, carry the grid workpiece in grid group hole（7）Pass through increasing material manufacturing, the identical lower drainage plate in hole position（5）With upper drainage plate（9）It is located in cuboid clamp body（2）In, and grid workpiece（7）On each grid group hole center line and fixture cover（1）And fixture base（4）On for abrasive flows by through-hole centerline parallel, in order to which abrasive flows quickly through the hole wall of the grid group on workpiece and are polished processing to hole wall；Grid workpiece（7）By bolt respectively with lower drainage plate（5）With upper drainage plate（9）It is connected.The configuration of the present invention is simple, it is high in machining efficiency, it is high-quality.
Description
Technical field
The present invention relates to a kind of special fixture, bright and clean Special Fixture for Machining inside especially a kind of grate opening, specifically
It is a kind of abrasive flow machining grid group hole special fixture.
Background technology
Abrasive flow machining is to process the new process to grow up, the processing accessibility ratio of this processing method from surface
It is higher, especially there is significant advantage to complex-shaped surface mould structure, can effectively remove flash removed, overlap, reduce workpiece surface
Roughness, to reach precision machined requirement.
The polishing in the oblique group hole in grid group hole, especially grid is a more difficult problem, uses traditional processing work
Skill needs to expend a large amount of manpower, and inefficient, and the double teeming of grid endoporus can be effectively removed using abrasive flow machining
Layer, reaches precision machined requirement.
One of abrasive flow machining key factor is the design of fixture, and rational fixture designs the constraint runner to be formed
Can have a great impact to processing quality, especially in the protection of local feature, the excitation of turbulent flow.The simplification journey of fixture design
Degree, operability have a major impact the processing efficiency in actual production.Invention content
The purpose of the present invention is for the inconvenient problem of processing inside grid inclined hole, it is special to design a kind of abrasive flow machining grid group hole
The surface roughness of grid endoporus is reduced to remove the re cast layer of grid endoporus with fixture, while protecting the sharp edge of endoporus.
The technical scheme is that：
A kind of abrasive flow machining grid group hole special fixture, it includes：Fixture cover 1, support ring 3 and fixture base 4, on fixture
Lid 1 and fixture base 4 are separately mounted to the both ends of support ring 3, it is characterised in that in the fixture cover 1 and fixture base 4
Equipped with for abrasive flows by through-hole, cuboid clamp body 2 is installed in support ring 3, carry grid group hole grid work
Part 7 by increasing material manufacturing, the hole identical lower drainage plate 5 in position and upper drainage plate 9 be located in cuboid clamp body 2, and lattice
The center line in each grid group hole on grid workpiece 7 in fixture cover 1 and fixture base 4 for abrasive flows by through-hole in
Heart line is parallel, and processing, grid work are polished in order to abrasive flows quickly through the hole wall of the grid group on workpiece and to hole wall
Part 7 is connect by bolt with lower drainage plate 5 and upper drainage plate 9.
Lower clapboard 6 is added between the grid workpiece 7 and lower drainage plate 5, in grid workpiece 7 and upper drainage plate 9
Between add upper spacer 8.
The thickness of the lower clapboard 6 and upper spacer 8 is 1 ~ 2mm, to ensure to stay between grid group hole and drainage plate group hole
There is the gap of 1 ~ 2mm, which can make between grid group hole and drainage plate group hole that there are the gaps of 1 ~ 2mm；Abrasive material draws in outflow
Meeting micro- diffusion around in the gap of 1 ~ 2mm after flowing plate, since gap is short, most of abrasive material moves forward by inertia
Flow into workpiece, but the range of work expands, be worked into diamond hole into side, can also alleviate and be brought since hole position positions micro- deviation
Processing problems.
The lower drainage plate 5 and upper drainage plate 9 is to use PLA or photosensitive resin for the structure of raw material increasing material manufacturing
Part, to ensure that drainage plate group hole is consistent with the size in grid group hole.
The lower drainage plate 5 and upper drainage plate 9 one side opposite with grid workpiece 7 is used to support grid equipped with multiple
The small boss of workpiece 7, with the intensity that enhancing is whole.
The small boss is located on the grate opening main reinforcement side on lower drainage plate 5 and upper drainage plate 9.
Four sides of the lower drainage plate 5 and upper drainage plate 9 are bevel edge structure, and angle of inclination should be with grid workpiece 7
Endoporus angle of inclination it is consistent so that abrasive flow direction is consistent with workpiece runner direction.
Beneficial effects of the present invention：
The present invention can not only remove in grid to provide a set of rationally available fixture with abrasive flows polishing grid group hole
The re cast layer in hole reduces the surface roughness of grid endoporus, moreover it is possible to the sharp edge of protective grille endoporus.
3D printing technique is applied in the manufacture of drainage plate by the present invention for the first time, is allowed to the cooperation of product flase floor more
Accurately.
The present invention can make the flow direction of abrasive flows more comprehensive by increasing partition board, can increase and add to grate opening surface
Work, but destruction will not be generated to sharp edge.
The present invention enhances the intensity of product, is allowed to deform smaller in process by adding small boss.
Description of the drawings
Fig. 1 is the grid Workpiece structure schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of the special fixture of the present invention.
Fig. 3 is the clamp body outline structural diagram of the present invention.
Fig. 4 is the outline structural diagram of the fixture base of the present invention.
Fig. 5 is the structural schematic diagram of the drainage plate of the present invention.
In figure：1, fixture cover；2, clamp body；3, support ring；4, fixture base；5, lower drainage plate；6, lower clapboard；7, lattice
Grid workpiece；8, upper spacer；9, upper drainage plate.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figs. 1-5.
A kind of abrasive flows polishing grid group hole special fixture, Fig. 1 show titanium alloy Rectangular Group hole flase floor part,
Its central area array distribution parallelogram inclined hole, the aperture of 4 a diameter of 6mm is distributed in the surrounding of workpiece.In order to complete
The abrasive flow machining of pairs of grid workpiece 7 shown in FIG. 1, the special fixture of design is as shown in Fig. 2, it includes fixture cover 1, folder
Specific 2, support ring 3, fixture base 4, lower drainage plate 5, lower clapboard 6, upper spacer 8 and upper drainage plate 9, the structure of clamp body 2 is such as
Shown in Fig. 3, for install rectangle clamp body 2 hole be stepped hole to ensure the positioning of clamp body, the structure of fixture base 4 is such as
Shown in Fig. 4.It is all made of clearance fit between support ring 3 and fixture cover 1 and fixture base 4.Clamp body 2 and fixture cover 1 and
It is also all made of clearance fit between fixture base 4.Grid workpiece 7 is connect by bolt with lower drainage plate 5 and upper drainage plate 9, folder
Has the positioning and clamping that upper cover 1, fixture base 4 and clamp body 2 are used for workpiece, lower drainage plate 5 and upper drainage plate 9 pass through both ends of the surface
It contacts and positions with the inner wall of clamp body 2, the endoporus of lower drainage plate 5 and upper drainage plate 9 should be with the array group hole one of grid workpiece 7
One corresponds to.As shown in Fig. 2, fixture cover 1 and fixture base 4 are separately mounted to the both ends of support ring 3, the fixture cover 1
With fixture base 4 be equipped with for abrasive flows by through-hole, cuboid clamp body 2 is installed in support ring 3, carry grid
The grid workpiece 7 in group hole by increasing material manufacturing, the hole identical lower drainage plate 5 in position and upper drainage plate 9 be located in cuboid clevis
The center line in each grid group hole in specific 2, and on grid workpiece 7 circulates in fixture cover 1 and fixture base 4 for abrasive material
The centerline parallel for the through-hole crossed, in order to which abrasive flows quickly through the hole wall of the grid group on workpiece and are polished hole wall
Processing.It is 1 ~ 2mm lower clapboards 6 that thickness is added between grid workpiece 7 and lower drainage plate 5, in grid workpiece 7 and upper drainage plate
It is 1 ~ 2mm upper spacers 8 that thickness is added between 9, to ensure that there are the gaps of 1 ~ 2mm between grid group hole and drainage plate group hole.
When it is implemented, lower drainage plate 5 and upper drainage plate 9 are that raw material use increasing material manufacturing preferably with PLA or photosensitive resin
Method is process, to ensure that drainage plate group hole is consistent with the size in grid group hole.For the intensity of enhanced grid workpiece 7, prevent
Only it is deformed, can also be in lower drainage plate 5 and upper drainage plate 9 one side opposite with grid workpiece 7 equipped with multiple when specific implementation
It is used to support the small boss of grid workpiece 7, with the intensity that enhancing is whole, as shown in figure 5, small boss is normally at lower drainage plate 5
On the grate opening main reinforcement side on upper drainage plate 9.In order to realize positioning of the grid workpiece 7 in cuboid clamp body 2, under draw
Four sides of flowing plate 5, upper drainage plate 9 and upper lower clapboard are designed to bevel edge structure, and their angle of inclination should be with grid work
The angle of inclination of the endoporus of part 7 is consistent so that abrasive flow direction is consistent with workpiece runner direction.
The present invention assembling process be：
First grid workpiece 7 is bolted between lower drainage plate 5 and upper drainage plate 9, lower drainage plate 5 and upper drainage plate 9
The partition board that one layer of 1 ~ 2mm is placed between grid workpiece 7 so that there are the skies of 1 ~ 2mm between grid group hole and drainage plate group hole
Gap.Abrasive material meeting micro- diffusion around in the gap of 1 ~ 2mm after flowing out drainage plate, since gap is short, most of abrasive material relies on
Inertia, which moves forward, flows into workpiece, but the range of work expand, be worked into diamond hole into side, can also alleviate due to hole
Position positions the processing problems that micro- deviation is brought.It is all made of clearance fit between support ring 3 and fixture cover 1 and fixture base 4, presss from both sides
Has the positioning and clamping that upper cover 1, fixture base 4 and clamp body 2 are used for grid workpiece 7, lower drainage plate 5 and upper drainage plate 9 pass through
Both ends of the surface are contacted with the inner wall of clamp body 2 and are positioned, and the endoporus of lower drainage plate 5 and upper drainage plate 9 should be with the array of grid workpiece 7
Group hole corresponds.Lower drainage plate 5 and upper drainage plate 9 should have small boss close to the plane of grid, be used to support grid workpiece 7,
Enhance whole intensity, as shown in Figure 5.
Lathe operating pressure is set as 15MPa, when 480 mesh, viscosity being selected to be processed for the silicon carbide abrasive of 2400PaS,
Abrasive flows up and down reciprocatingly circulate, and abrasive material, which flows through to move forward by inertia after the grate opening on drainage plate, flows into grid
Workpiece 7.When cycle-index reaches 100 times, polishing effect is measured using roughmeter, measurement result shows grid endoporus
Roughness Ra can reach 1.6, and moreover, the sharp edge of grid endoporus is also guaranteed.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (7)
1. a kind of abrasive flow machining grid group hole special fixture, it includes：Fixture cover（1）, support ring（3）And fixture base
（4）, fixture cover（1）And fixture base（4）It is separately mounted to support ring（3）Both ends, it is characterised in that on the fixture
Lid（1）And fixture base（4）Be equipped with for abrasive flows by through-hole, in support ring（3）In cuboid clamp body is installed
（2）, carry the grid workpiece in grid group hole（7）Pass through increasing material manufacturing, the identical lower drainage plate in hole position（5）With upper drainage plate
（9）It is located in cuboid clamp body（2）In, and grid workpiece（7）On each grid group hole center line and fixture cover（1）
And fixture base（4）On for abrasive flows by through-hole centerline parallel, in order to which abrasive flows are quickly through on workpiece
The hole wall of grid group is simultaneously polished processing to hole wall；Grid workpiece（7）By bolt respectively with lower drainage plate（5）With upper drainage
Plate（9）It is connected.
2. abrasive flow machining grid group hole according to claim 1 special fixture, it is characterized in that in the grid workpiece
（7）With lower drainage plate（5）Between add lower clapboard（6）, in grid workpiece（7）With upper drainage plate（9）Between add every
Plate（8）.
3. abrasive flow machining grid group hole according to claim 2 special fixture, it is characterized in that the lower clapboard（6）With
Upper spacer（8）Thickness be 1 ~ 2mm, to ensure that there are the gap of 1 ~ 2mm, the gap energy between grid group hole and drainage plate group hole
Make between grid group hole and drainage plate group hole that there are the gaps of 1 ~ 2mm；Abrasive material meeting in the gap of 1 ~ 2mm after flowing out drainage plate
Micro- diffusion around, since gap is short, most of abrasive material moves forward by inertia and flows into workpiece, but the range of work expands
Greatly, be worked into diamond hole into side, can also alleviate since hole position positions the processing problems that micro- deviation is brought.
4. abrasive flow machining grid group hole according to claim 1 special fixture, it is characterized in that the lower drainage plate（5）
With upper drainage plate（9）To use PLA or photosensitive resin for the structural member of raw material increasing material manufacturing, with ensure drainage plate group hole with
The size in grid group hole is consistent.
5. abrasive flow machining grid group hole according to claim 1 special fixture, it is characterized in that the lower drainage plate（5）
With upper drainage plate（9）With grid workpiece（7）Opposite one side is used to support grid workpiece equipped with multiple（7）Small boss, with
Enhance whole intensity.
6. abrasive flow machining grid group hole according to claim 1 special fixture, it is characterized in that the small boss is located at
Lower drainage plate（5）With upper drainage plate（9）On grate opening main reinforcement side on.
7. abrasive flow machining grid group hole according to claim 1 special fixture, it is characterized in that the lower drainage plate（5）
With upper drainage plate（9）Four sides be bevel edge structure, angle of inclination should be with grid workpiece（7）Endoporus angle of inclination one
It causes so that abrasive flow direction is consistent with workpiece runner direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409956.5A CN108637899B (en) | 2018-05-02 | 2018-05-02 | Abrasive flow processing grid group hole special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409956.5A CN108637899B (en) | 2018-05-02 | 2018-05-02 | Abrasive flow processing grid group hole special fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108637899A true CN108637899A (en) | 2018-10-12 |
| CN108637899B CN108637899B (en) | 2020-08-18 |
Family
ID=63748986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810409956.5A Active CN108637899B (en) | 2018-05-02 | 2018-05-02 | Abrasive flow processing grid group hole special fixture |
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| Country | Link |
|---|---|
| CN (1) | CN108637899B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109015365A (en) * | 2018-07-25 | 2018-12-18 | 成都飞机工业（集团）有限责任公司 | A kind of abrasive flow machining grid group hole special fixture |
| CN110712134A (en) * | 2019-10-18 | 2020-01-21 | 大连理工大学 | Integrated clamping-free structure and abrasive flow processing method thereof |
| CN111843686A (en) * | 2020-08-03 | 2020-10-30 | 祁小蒙 | Air purifier filter panel production and processing equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109015365A (en) * | 2018-07-25 | 2018-12-18 | 成都飞机工业（集团）有限责任公司 | A kind of abrasive flow machining grid group hole special fixture |
| CN110712134A (en) * | 2019-10-18 | 2020-01-21 | 大连理工大学 | Integrated clamping-free structure and abrasive flow processing method thereof |
| CN111843686A (en) * | 2020-08-03 | 2020-10-30 | 祁小蒙 | Air purifier filter panel production and processing equipment |
| CN111843686B (en) * | 2020-08-03 | 2021-11-19 | 诸暨市开翎工业设计有限公司 | Air purifier filter panel production and processing equipment |
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| Publication number | Publication date |
|---|---|
| CN108637899B (en) | 2020-08-18 |
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