CN109048657A - A kind of straight line pipe internal surface abrasive Flow polishing high leakproofness fixture - Google Patents
A kind of straight line pipe internal surface abrasive Flow polishing high leakproofness fixture Download PDFInfo
- Publication number
- CN109048657A CN109048657A CN201810962294.4A CN201810962294A CN109048657A CN 109048657 A CN109048657 A CN 109048657A CN 201810962294 A CN201810962294 A CN 201810962294A CN 109048657 A CN109048657 A CN 109048657A
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- fixture
- buckle fixture
- hole
- processed
- counterbore
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- 238000005498 polishing Methods 0.000 title claims description 14
- 239000004677 Nylon Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 37
- 229920001778 nylon Polymers 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000003082 abrasive agent Substances 0.000 claims description 9
- 230000004308 accommodation Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a kind of rectilinear tubes abrasive Flows to polish high leakproofness fixture, and straight line tube workpiece to be processed is immobilizated in fixture, and high leakproofness fixture designs so that workpiece to be processed and fixture form high leakproofness cavity, to reach the abrasive flow machining purpose of stability and high efficiency.The high leakproofness fixture includes: upper and lower material cylinder, labyrinth seal is connect and formed respectively with upper and lower two cylinder and thread seal, the inside and outside of constraint abrasive medium movement buckle clamp member, the inside and outside clip tool mends core with upper and lower material cylinder, nylon respectively and connect and formed the seal forms such as labyrinth seal, end face seal and seam allowance sealing, and there are also the nylon for constraining rectilinear tubes to be processed being connected with outer, internal buckle holder part to mend core.
Description
Technical field
The present invention relates to non-traditional mechanical polishing field, for clamping rectilinear tubes to be processed and to form leakproofness good
Runner, to guarantee that abrasive medium is not revealed in flow process in rectilinear tubes to be processed.
Background technique
Abrasive Flow Machining technology is a kind of unconventional mechanical polishing method, it will be mixed with the polymer-based or water base of abrasive grain
Medium squeeze is by work surface, to realize the technology of skin processing.During abrasive Flow Machining, abrasive grain is to table to be processed
The effect in face can be divided into scratching, plough the stages such as plough and cutting.Under the action of hydraulic or air pressure, polymer-based or water base abrasive material is situated between
Matter back and forth flows in the runner that workpiece to be processed and fixture are constituted, and it is to be added that the fluid behaviour of abrasive medium guarantees that it is adaptive to
Work surface polishes workpiece work surface to realize.
Sealing be prevent fluid or solia particle from reveal and prevent between sealing structure faying face introduced contaminants such as ash
Dirt and moisture etc. invade the measure inside equipment.Leakage is one very important quality problems of mechanical equipment, influences equipment
Normal operation, working efficiency and service life etc., and will lead to waste of energy, environmental pollution.Sealing performance is that evaluation is set
The important indicator of standby performance and quality.According to statistics, the unplanned parking accident of 60% chemical company is related with seal failure.Straight
In the polishing of spool abrasive Flow, fixture plays a part of sealing runner and holds rectilinear tubes to be processed.When abrasive medium viscous-elastic behaviour
When effect is weaker, the weakening of fixture sealing function causes abrasive material " race ", " emitting ", " drop ", " leakage " phenomenon to happen occasionally, and then influences straight
The stability for being normally carried out, influencing polishing process of spool part polishing.For water base abrasive medium, high leakproofness fixture
It is most important for obtaining metastable polishing process.
Although existing straight line pipe clamp sealing technique has the effect of certain, low for Viscoelastic effect macromolecule
Base abrasive medium and water base abrasive medium, existing fixture Seal Design high leakproofness, prevent leakage, keep rectilinear tubes polishing
Process is indeformable etc. there are still certain limitation, and there are problems.
In addition, existing straight line pipe clamp sealing technique is poor for applicability, different model rectilinear tubes are needed using different
Special fixture.When rectilinear tubes part length is irregular, draw ratio has different series, required special fixture quantity is many
It is more, cause the wasting of resources, economy poor.
Summary of the invention
The present invention in view of the above technical problems, proposes a kind of to can be used for the highly dense of straight line pipe internal surface abrasive Flow polishing
The fixture design of envelope property, has many advantages, such as good airproof performance, efficient clamping, and straight line pipe internal surface abrasive Flow polishing effect can be improved
Rate improves processing quality.
To achieve the above objectives, the following technical solutions are proposed:
A kind of straight line pipe internal surface abrasive Flow polishes high leakproofness fixture, comprising: upper material cylinder, outward buckle fixture, nylon mend core,
Internal buckle fixture and lower material cylinder.
Upper material cylinder tool is the cylindrical body for having certain internal diameter, and top is provided with the appearance of the abrasive material for accommodating abrasive medium
Receive chamber, upper material cylinder centre bottom has internal thread hole.
Outward buckle fixture top is provided with external screw thread, is connected with the internal screw thread of upper bottom of the cylinder, height and upper material cylinder
Internal thread hole length is identical, and the end face area being bonded with upper material cylinder lower surface is provided with rotatory sealing deep trouth, upper material cylinder following table
Face be provided with matched with rotatory sealing deep trouth to form labyrinth seal needed for end face rotating gripper.
Wherein, outward buckle clamp central position is internal diameter through-hole A identical with straight line bore to be processed, is connect with through-hole A
Place is bonded to mend core top with nylon with tapered counterbore, counterbore path end face and inclined-plane to position, spiral shell in counterbore major diameter
Line part is threadedly coupled with the formation of the external screw thread of internal buckle clamp top.
Nylon benefit core central through hole B internal diameter is identical as straight line pipe outside diameter to be processed, the depth of through-hole B and rectilinear tubes to be processed
Length is identical；It is the optical axis portion with certain outer diameter that nylon, which mends core top small end, and intermediate position is tapered Step Shaft
Portion, lower part are with certain outer diameter lower part optical axis portion；Nylon is mended core inner and is bonded with rectilinear tubes to be processed, top small end end
Miner diameter end face paste is closed inside face and outward buckle fixture, and taper inclined-plane play the guiding role, spiral shell in the outside of step axle portion and outward buckle fixture
Line is bonded, the end face of step axle portion is bonded with internal buckle fixture upper end, the outer surface in lower part optical axis portion and sinking for internal buckle fixture
Internal surface of hole is bonded, the end face in lower part optical axis portion is bonded with internal buckle fixture counterbore end face.
Internal buckle clamp central position through-hole C internal diameter and straight line pipe diameter to be processed, the top through-hole C are with certain internal diameter ruler
Very little internal buckle fixture counterbore, internal buckle fixture counterbore outside is the external screw thread with outward buckle fixture screw-internal thread fit, through-hole C lower surface
Outside is the internal buckle fixture external screw thread with certain outer diameter, and the flat portion lower end surface of internal buckle fixture external screw thread root is provided with spiral
Seal groove, through-hole C-terminal face are bonded with straight line end surfaces to be processed, the external thread part upper surface of internal buckle fixture counterbore and internal buckle fixture
Counterbore is mended core corresponding position with nylon and is bonded, and the external screw thread of internal buckle fixture counterbore is to be threadedly engaged with outward buckle fixture internal screw thread, interior
The lower outside of clip tool is to be threadedly engaged with lower material cylinder top.
Wherein, the flat portion of internal buckle fixture external screw thread root and lower material cylinder corresponding end surface are labyrinth seal.
Blanking cylinder structure is identical as upper material cylinder.
Wherein, through-hole B, the straight line to be processed of core are mended by the abrasive media chamber A of upper material cylinder, the through-hole A of outward buckle fixture, nylon
The continuous through hole of the abrasive media chamber B composition of the central tube of pipe, the through-hole C of internal buckle fixture and lower material cylinder, this runs through
Duct is the flow region of abrasive medium in abrasive Flow Machining.
Further, the groove depth of above-mentioned labyrinth seal is 3~4mm, and quantity is 3~5.
Clamping explanation by adopting the above technical scheme:
Rectilinear tubes to be processed are fully enclosed nylon to mend in the through-hole B of core, clearance fit are formed, to guarantee straight line to be processed
Indeformable and position is managed to fix.Nylon is mended core (containing rectilinear tubes to be processed) and is fully enclosed in internal buckle fixture, and nylon mends core (containing to be added
Work rectilinear tubes) with internal buckle fixture in internal-and external diameter joint place formed clearance fit, endface formed end face seal and seam allowance sealing.
Nylon is mended core (containing rectilinear tubes to be processed) to screw in outward buckle fixture together with internal buckle fixture, outward buckle fixture is formed with internal buckle fixture
Thread seal, outward buckle fixture and nylon mend core and form clearance fit in internal-and external diameter joint place, outward buckle fixture and nylon mend core (containing to
Processing linear pipe) in endface formation end face seal and seam allowance sealing.Internal buckle fixture, outward buckle fixture (are mended into core, to be added containing nylon
Work rectilinear tubes) all screwed in inside and outside material cylinder respectively, cooperation, form thread seal, end face joint place formed seam allowance sealing with
" labyrinth seal ".The labyrinth seal mechanism is: abrasive medium flows through to be led to composed by " labyrinth " throttle clearance and expansion cavity
Road generates biggish energy loss due to repeatedly throttling, and abrasive medium flow head greatly declines, and abrasive medium is caused to be difficult to seep
Leakage, reaches sealing purpose.Finally, fixture clamping to lathe designated position is carried out abrasive Flow polishing by filling abrasive medium
Operation.
For different rectilinear tubes to be processed, which replaces corresponding nylon and mends core, reach quick-replaceable,
Purpose easy to setup.
Abrasive medium in upper material cylinder and lower material cylinder is squeezed through under the action of hydraulic or air pressure with inner passage
Big L/D ratio straight line pipe internal surface to be processed, polish workpiece to be processed inner surface.
To sum up, the present invention can be used for straight line pipe internal surface abrasive Flow polishing, have good airproof performance, efficient clamping etc. excellent
Point can be improved straight line pipe internal surface abrasive Flow polishing efficiency and improve processing quality.
Above description is that technical solution of the present invention is summarized, in order to better understand used technology hand of the invention
Section, illustrates feature of present invention and advantage more than you knowly, using case is implemented as follows, and cooperates attached drawing, is described in detail.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the invention.
Specific embodiment
A kind of straight line pipe internal surface abrasive Flow as shown in Figure 1 polishes high leakproofness fixture, comprising: upper material cylinder 1, outer clip
Tool 2, nylon mend core 3, internal buckle fixture 5 and lower material cylinder 6.
Upper material cylinder 1 has certain internal diameter and length column, and top is provided with the abrasive media chamber to accommodate abrasive material
A, upper 1 centre bottom of material cylinder have internal screw thread；
2 top of outward buckle fixture is provided with external screw thread, links with the internal screw thread of upper 1 bottom of material cylinder, height and upper material cylinder 1
Interior spiral shell length is identical, and end face area and upper 1 lower surface fitting part of material cylinder are provided with rotatory sealing deep trouth 21, upper 1 following table of material cylinder
Face is provided with the end face rotating gripper 11 that labyrinth seal is cooperatively formed with rotatory sealing deep trouth 21；
Wherein, 2 center of outward buckle fixture is internal diameter through-hole A22 identical with 4 internal diameter of rectilinear tubes to be processed, with through-hole
The junction A22 be counterbore 23 that taper is 2 with middle part, 23 major diameter inner surface of counterbore is internal screw thread, counterbore path end face and
Inclined-plane is mended 3 top of core with nylon and is bonded to position, and major diameter female thread portion and the external screw thread at 5 top of internal buckle fixture are matched for screw thread
It closes；
Nylon mend 3 center of core be internal diameter through-hole B31 identical with 4 outer diameter of rectilinear tubes to be processed, the depth of through-hole B31 and to
4 length of processing linear pipe is identical, and top small end is the top optical axis portion 32 with certain outer diameter, and intermediate position is that taper is 2
Step axle portion 33, lower part are the lower part optical axis portion 34 of certain outer diameter, and nylon is mended 3 inside of core and is bonded with rectilinear tubes 4 to be processed, on
Portion small end end face and 2 inside miner diameter end face paste of outward buckle fixture are closed, and taper inclined-plane play the guiding role, the step axle portion 33 that taper is 2
Outside be bonded with 2 internal screw thread of outward buckle fixture, the end face of step axle portion 33 is bonded with 5 upper end of internal buckle fixture, lower part optical axis
The outer surface in portion 34 is bonded with 23 inner surface of counterbore of internal buckle fixture 5, the end face and 5 counterbore end of internal buckle fixture in lower part optical axis portion 34
Face paste is closed；
There is an internal diameter through-hole C51 identical with 4 diameter of rectilinear tubes to be processed at 5 center of internal buckle fixture, the top through-hole C51 be with
The internal buckle fixture counterbore 52 of certain internal diameter is the external screw thread with 2 screw-internal thread fit of outward buckle fixture outside internal buckle fixture counterbore 52, leads to
Be the internal buckle fixture external screw thread 53 with certain outer diameter on the outside of hole C51 lower surface, 53 root of internal buckle fixture external screw thread it is open and flat
The lower end surface in portion 54 is provided with helixseal slot 55, and the end face through-hole C51 is bonded with 4 end face of rectilinear tubes to be processed, and internal buckle fixture is heavy
The external thread part upper surface in hole 52 and internal buckle fixture counterbore 52 are mended 3 corresponding position of core with nylon and are bonded, internal buckle fixture counterbore 52
External screw thread is to be threadedly engaged with 2 internal screw thread of outward buckle fixture, and the lower outside of internal buckle fixture 5 is to be threadedly engaged with lower 6 top of material cylinder；
Wherein, the flat portion 54 of 53 root of internal buckle fixture external screw thread and lower 6 corresponding end surface of material cylinder are labyrinth seal；
Lower 6 structure of material cylinder is identical as upper material cylinder 1；
Wherein, by the abrasive media chamber A of upper material cylinder 1, the through-hole A22 of outward buckle fixture 2, nylon mend core 3 through-hole B31, to
The abrasive media chamber B composition of the central tube of processing linear pipe 4, the through-hole C51 of internal buckle fixture 5 and lower material cylinder 6 continuously passes through
Punch track, i.e. this through hole are the flow region of abrasive material；
Further, the groove depth of above-mentioned labyrinth seal is 3~4mm, and quantity is 3~5.
Clamping explanation of the invention by adopting the above technical scheme:
Rectilinear tubes 4 to be processed are fully enclosed nylon to mend in the through-hole B31 of core 3, form clearance fit, and guarantee to be processed
Rectilinear tubes 4 are indeformable and position is fixed.Nylon is mended core 3 (containing rectilinear tubes 4 to be processed) and is fully enclosed in internal buckle fixture 5, and nylon is mended
Core 3 (containing rectilinear tubes 4 to be processed) forms clearance fit in internal-and external diameter joint place with internal buckle fixture 5, forms end face seal in end face
It is sealed with seam allowance.Nylon is mended core 3 (containing rectilinear tubes 4 to be processed) to screw in outward buckle fixture 2 together with internal buckle fixture 5, outer clip
Tool 2 forms thread seal with internal buckle fixture 5, and outward buckle fixture 2 and nylon mend core 3 and forms clearance fit in internal-and external diameter joint place, outside
Clip tool 2 is mended core 3 (containing rectilinear tubes 4 to be processed) with nylon and is sealed in endface formation end face seal and seam allowance.By internal buckle fixture
5, all screw-in, cooperation, formation screw thread are close with inside and outside material cylinder respectively for outward buckle fixture 2 (contain nylon and mend core 3, rectilinear tubes 4 to be processed)
Envelope, end face joint place formed seam allowance sealing with " labyrinth seal ", effect be abrasive medium flow through " labyrinth " throttle clearance with it is swollen
The channel of swollen cavity composition, generates biggish energy loss due to repeatedly throttling, liquid head greatly declines, and fluid is made to be difficult to seep
Leakage, reaches sealing purpose.Finally, fixture clamping to lathe designated position is carried out abrasive Flow polishing test behaviour by filling abrasive material
Make.
Difference rectilinear tubes 4 to be processed to be processed replace corresponding nylon and mend core 3, to reach quick-replaceable, clamping side
Just purpose.
Abrasive medium in upper material cylinder and lower material cylinder is squeezed through under the action of hydraulic or air pressure with inner passage
Big L/D ratio 4 inner surface of rectilinear tubes to be processed, to be polished to the surface.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made for any of the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962294.4A CN109048657B (en) | 2018-08-22 | 2018-08-22 | Linear pipe inner surface abrasive flow polishing high-sealing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962294.4A CN109048657B (en) | 2018-08-22 | 2018-08-22 | Linear pipe inner surface abrasive flow polishing high-sealing clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109048657A true CN109048657A (en) | 2018-12-21 |
| CN109048657B CN109048657B (en) | 2020-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810962294.4A Active CN109048657B (en) | 2018-08-22 | 2018-08-22 | Linear pipe inner surface abrasive flow polishing high-sealing clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN109048657B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333175A (en) * | 2018-11-08 | 2019-02-15 | 太原理工大学 | Ultrasonic vibration-assisted abrasive flow precision finishing machining method for inner wall of circular tube |
| CN110026880A (en) * | 2019-04-15 | 2019-07-19 | 中国电子科技集团公司第二十研究所 | The inner surface abrasive Flow of 3D printing thin wall special-shaped electromagnetic horn polishes tooling |
| CN110587467A (en) * | 2019-10-09 | 2019-12-20 | 无锡威孚马山油泵油嘴有限公司 | Plunger bushing abrasive particle oil flow hole deburring device |
| CN111098223A (en) * | 2020-01-15 | 2020-05-05 | 长春理工大学 | Abrasive flow polishing clamp for thin-wall cylindrical pipe |
| CN111113251A (en) * | 2019-12-27 | 2020-05-08 | 国营第六一六厂 | Flexible clamp for abrasive flow |
| CN111604800A (en) * | 2020-06-28 | 2020-09-01 | 长春理工大学 | A kind of small diameter elbow abrasive flow polishing processing device |
| CN111618740A (en) * | 2020-06-28 | 2020-09-04 | 长春理工大学 | Special clamp for polishing U-shaped pipe by abrasive flow |
| CN115213798A (en) * | 2022-09-19 | 2022-10-21 | 南通飞奔机械有限公司 | Processing equipment with internal thread polishing function for pipeline communicating piece |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333175A (en) * | 2018-11-08 | 2019-02-15 | 太原理工大学 | Ultrasonic vibration-assisted abrasive flow precision finishing machining method for inner wall of circular tube |
| CN110026880A (en) * | 2019-04-15 | 2019-07-19 | 中国电子科技集团公司第二十研究所 | The inner surface abrasive Flow of 3D printing thin wall special-shaped electromagnetic horn polishes tooling |
| CN110587467A (en) * | 2019-10-09 | 2019-12-20 | 无锡威孚马山油泵油嘴有限公司 | Plunger bushing abrasive particle oil flow hole deburring device |
| CN111113251A (en) * | 2019-12-27 | 2020-05-08 | 国营第六一六厂 | Flexible clamp for abrasive flow |
| CN111098223A (en) * | 2020-01-15 | 2020-05-05 | 长春理工大学 | Abrasive flow polishing clamp for thin-wall cylindrical pipe |
| CN111604800A (en) * | 2020-06-28 | 2020-09-01 | 长春理工大学 | A kind of small diameter elbow abrasive flow polishing processing device |
| CN111618740A (en) * | 2020-06-28 | 2020-09-04 | 长春理工大学 | Special clamp for polishing U-shaped pipe by abrasive flow |
| CN115213798A (en) * | 2022-09-19 | 2022-10-21 | 南通飞奔机械有限公司 | Processing equipment with internal thread polishing function for pipeline communicating piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109048657B (en) | 2020-11-06 |
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