CN107336124A - A kind of multi-work piece Reciprocatory abrasive Flow polishing machine - Google Patents
A kind of multi-work piece Reciprocatory abrasive Flow polishing machine Download PDFInfo
- Publication number
- CN107336124A CN107336124A CN201710709594.7A CN201710709594A CN107336124A CN 107336124 A CN107336124 A CN 107336124A CN 201710709594 A CN201710709594 A CN 201710709594A CN 107336124 A CN107336124 A CN 107336124A
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- Prior art keywords
- work piece
- barrel
- cylinder
- hydraulic cylinder
- clamping
- Prior art date
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- Pending
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 31
- 238000000227 grinding Methods 0.000 claims abstract description 28
- 239000003082 abrasive agent Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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- 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
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- 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
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
-
- 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
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
- B24C3/327—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes by an axially-moving flow of abrasive particles without passing a blast gun, impeller or the like along the internal surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Patent of the present invention discloses a kind of multi-work piece Reciprocatory abrasive Flow polishing machine, including power set, multi-work piece processing unit (plant), clamping device, abrasive material circulation device and servicing unit etc., its power set is provided by upper hydraulic cylinder, lower hydraulic cylinder, upper hydraulic cylinder, lower hydraulic cylinder move up and down in the control lower band dynamic pressure disk of same hydraulic system, extrude abrasive polishing workpiece to be processed in barrel.Multi-work piece processing unit (plant) by three (or) multi-connected clamping device, workpiece to be processed, workbench form, three (or) multi-connected clamping device and workbench clamp workpiece to be processed, three (or) more continuous grinding stream siphunculus respectively with three (or) multi-connected clamping device and workbench be connected；Clamping cylinder a, clamping cylinder b cylinder barrel are fixed at left and right sides of main frame by fixed cross beam a and fixed cross beam b, clamp pull bar drive fixture can realize three (or) multi-connected clamping device while clamping movement.The present invention can realize the reciprocal polishing of multi-work piece, have the advantages that efficiency high, energy consumption are low and control is simple.
Description
Technical field
The present invention is a kind of fluid polishing processing machine mechanical structure, and in particular to a kind of multi-work piece Reciprocatory abrasive Flow polishing
Machine, it is mainly used in big block inner bore of part, the cross bore polishing such as valve block.
Background technology
In machining, traditional machining can not meet the required precision to some high precision parts, particularly
The polishing of inner bore of part, cross bore, abrasive fluid technology spray abrasive Flow using squeezing action, reach and remove hole type parts hair
The effect of thorn and rusty stain, has good protective effect, existing abrasive Flow polishing machine can not accomplish the large quantities of of part for part
Polishing is measured, structure is more complicated, and cost is higher.
Existing abrasive fluid polishing machine is polished using pure cylinder mostly, be can be only done the polishing of single workpiece, is added
Work is less efficient, and processing cost is higher, it is difficult to be received by some enterprises.As Publication No. CN202780720U discloses one kind
Abrasive fluid automatic polishing machine, it is proposed that the new processing method that a kind of either simplex part is back and forth processed, but it can only once process one
Individual workpiece, its processing efficiency need to improve.Publication No. CN201856159U discloses a kind of fluid polishing machine, it is possible to achieve three
The processing of individual workpiece, but multiple material cylinders and supporting power set are needed, manufacturing cost is considerably increased, it is complicated,
Control accuracy can not ensure.
The content of the invention
For drawbacks described above existing for fixture in the prior art, the invention provides a kind of throwing of multi-work piece Reciprocatory abrasive Flow
Ray machine, it is possible to achieve polished while multiple workpiece, have that high in machining efficiency, cost-effective, control is simple, it is excellent to reduce energy consumption etc.
Point.
A kind of multi-work piece Reciprocatory abrasive Flow polishing machine of the present invention.Including power set, multi-work piece processing unit (plant),
Clamping device, abrasive material circulation device and servicing unit etc.；Described power set are provided by upper hydraulic cylinder, lower hydraulic cylinder, thereon
Hydraulic cylinder includes piston a, extension bar a, and its lower hydraulic cylinder includes piston b, extension bar b, and upper hydraulic cylinder, lower hydraulic cylinder are fixed respectively
Under main frame upper and lower ends, wherein extension bar a upper ends connection piston a lower ends connection platen a, extension bar b upper ends connection platen b
End connection piston b, hydraulic cylinder move the up and down motion for driving platen under the control of hydraulic system, extruded in barrel a and barrel b
Abrasive polishing workpiece to be processed；Described multi-work piece processing unit (plant) by three (or) multi-connected clamping device, workpiece to be processed, workbench；
Described abrasive material circulation device is divided into two parts up and down, thereon abrasive material circulation device include platen a, barrel a, three (or) more continuous grindings
Stream siphunculus a, lower abrasive material circulation device include platen b, barrel b, three (or) more continuous grinding stream siphunculus b, three (or) multi-connected clamping device
With three (or) more continuous grinding stream siphunculus a a, b, c port is connected, three (or) more continuous grinding stream siphunculus a are connected with barrel a bottoms
Connect, three (or) multi-connected clamping device and workbench clamp workpiece to be processed, three (or) more continuous grinding stream siphunculus b d, e, f port with
Workbench connects, three (or) more continuous grinding stream siphunculus b are connected with barrel b bottoms, clamping cylinder a, clamping cylinder b cylinder barrel are by consolidating
Determine crossbeam a and fixed cross beam b to be fixed at left and right sides of main frame, clamp pull bar a and clamping pull bar b with three (or) multi-connected clamping device phase
Even, scuffing of cylinder bore drive fixture can realize three (or) multi-connected clamping device while clamping movement；Abrasive material in barrel a can be added by hopper
Add, work pieces process is completed abrasive material and is stored in barrel b；Described clamping device include clamping cylinder a, clamping cylinder b, clamp pull bar a,
Clamp pull bar b；Described servicing unit includes hydraulic system, guidance panel, fixed cross beam etc..
As a further improvement on the present invention, described three (or) multi-connected clamping device is in the presence of clamping cylinder a and clamping cylinder b
Can clamp three (or) multiple workpiece, realize three (or) multiple workpiece while process.
As a further improvement on the present invention, it is described three (or) more continuous grinding stream siphunculus a and three (or) on multi-connected clamping device
End is connected, three (or) more continuous grinding stream siphunculus b are connected with workbench lower end, once clamping can realize moving in circles for abrasive material
Processing.
As a further improvement on the present invention, described upper hydraulic cylinder, lower hydraulic cylinder, clamping cylinder a, clamping cylinder b share one
Cover hydraulic system.
Beneficial effects of the present invention：(1) present invention can be achieved three (or) multiple workpiece while process, increase substantially plus
Work efficiency rate；(2) present invention use two material cylinders connection three up and down (or) more continuous grinding stream siphunculus, can after filling of hopper
With this more use, and abrasive material is recycled in workpiece to be processed endoporus and moved back and forth.(3) present invention shares a set of hydraulic pressure system
System, it is simple in construction, it is easy to control, energy consumption is greatly lowered.
Brief description of the drawings
Fig. 1 is a kind of multi-work piece Reciprocatory abrasive Flow polisher structure schematic diagram of the present invention；
Fig. 2 is that a kind of multi-work piece Reciprocatory abrasive Flow polishing machine abrasive Flow flows downward schematic diagram in the present invention；
Fig. 3 is that a kind of multi-work piece Reciprocatory abrasive Flow polishing machine abrasive Flow flows up schematic diagram in the present invention.
Wherein：The upper hydraulic cylinders of 1-；2- pistons a；3- extension bars a；4- platens a；5- barrels a；6- tri- (or) more continuous grinding streams
Siphunculus a；7- tri- (or) multi-connected clamping device；8- clamps pull bar a；9- workpieces to be processed；10- clamping cylinders a；11- barrels b；12- extension bars
b；Hydraulic cylinder under 13-；14- pistons b；15-- platens b；16- fixed cross beams a；17 fixed cross beam b；18 clamping cylinder b；19- tri- (or)
More continuous grinding stream siphunculus b；20- workbenches；21- clamps pull bar b；22- hoppers；23- main frames.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
As shown in figure 1, a kind of multi-work piece Reciprocatory abrasive Flow polishing machine of the present invention, including power set, multi-work piece
Processing unit (plant), clamping device, abrasive material circulation device and servicing unit etc.；Described power set are by upper hydraulic cylinder 1, lower hydraulic cylinder
13 provide, and hydraulic cylinder 1 includes piston a 2, extension bar a 3 thereon, and its lower hydraulic cylinder 13 includes piston b 14, extension bar b 12,
Upper hydraulic cylinder 1, lower hydraulic cylinder 13 are individually fixed in the upper and lower ends of main frame 23, and the wherein upper ends of extension bar a 3 are connected under piston a 2
The lower end connection piston b 14 of end connection platen a 4, the upper ends of extension bar b 12 connection platen b 15, control of the hydraulic cylinder in hydraulic system
The lower motion of system drives the up and down motion of platen, extrudes abrasive polishing workpiece to be processed in barrel a 5 and barrel b 11；Described is more
Work treatment installation by three (or) multi-connected clamping device 7, workpiece to be processed 9, workbench 20；Described abrasive material circulation device is divided into
Lower two parts, thereon abrasive material circulation device include platen a 4, barrel a 5, three (or) more continuous grinding stream siphunculus a 6, lower abrasive flows
Exchange device include platen b 15, barrel b 11, three (or) more continuous grinding stream siphunculus b 19, three (or) multi-connected clamping device 7 and work it is flat
Platform 20 can simultaneously clamp on three (or) multiple workpieces to be processed 9, the more continuous grinding stream siphunculus a of three (or) multi-connected clamping device 7 and three (or)
A, b, c port be connected, three (or) more continuous grinding stream siphunculus a 6 are connected with the bottoms of barrel a 5, three (or) multi-connected clamping device 7 with
Workbench 20 clamps workpiece to be processed 9, three (or) more continuous grinding stream siphunculus b 19 d, e, f port and workbench 20 connect
Connect, three (or) more continuous grinding stream siphunculus b 19 are connected with the bottoms of barrel b 11, clamping cylinder a 10, clamping cylinder b 21 cylinder barrel by
Fixed cross beam a 16 and fixed cross beam b 17 is fixed at left and right sides of main frame, is clamped pull bar a 8 and is clamped pull bar b 21 and three
(or) multi-connected clamping device 7 is connected, scuffing of cylinder bore drive fixture can realize three (or) multi-connected clamping device 7 while clamping movement；In barrel a 5
Abrasive material can be added by hopper 22, and work pieces process is completed abrasive material and is stored in barrel b 11；Described clamping device includes clamping
Cylinder a 10, clamping cylinder b 21, clamp pull bar a 8, clamp pull bar b 21；Described servicing unit includes hydraulic system, operating surface
Plate, fixed cross beam etc..
As shown in Fig. 2 described clamping cylinder a 10 and clamping cylinder b 21 works asynchronously, drive and clamp pull bar a 8 and clamp
Pull bar b 21 cause three (or) multi-connected clamping device 7 simultaneously clamps on 3 workpieces to be processed；The upper epicoele of hydraulic cylinder 1 is passed through hydraulic oil, piston
A2 is moved down, and moves downward extruding barrel a5 abrasive material in extension bar a 3 traction lower band dynamic pressure disk a4 so that abrasive material passes through three
(or) more continuous grinding stream siphunculus a a, b, c port is respectively acting on 3 workpieces to be processed 9, the piston b of this hydraulic cylinder 13 at present
Move down, under extension bar b 12 traction so that platen b 15 is moved downward so that downward suction is produced in barrel b 11,
After abrasive material is finished workpiece to be processed 9, under the upper pressure of hydraulic cylinder 1 and the collective effect of the suction of barrel b 11, abrasive flows pan feeding
In cylinder b 11, stock removal polishing is completed.
As shown in figure 3, described abrasive material after stock removal polishing, is stored in barrel b 11, this is at present under hydraulic cylinder 13
Chamber is passed through hydraulic oil, and piston b is moved up, under extension bar b 12 traction so that platen b 15 is moved upwards, extruding barrel b 11
In abrasive material so that abrasive material by three (or) more continuous grinding stream siphunculus b d, e, f port is respectively acting on 3 workpieces to be processed,
Upper hydraulic cylinder 1 is in oil return state simultaneously, and piston a 2 is moved up, and is moved upwards in extension bar a 3 traction lower band dynamic pressure disk a 4,
So that barrel a 5 produces downward suction, after abrasive material is finished workpiece to be processed 9, in the lower pressure of hydraulic cylinder 13 and barrel a 5
Under suction collective effect, in abrasive flows feeding cylinder a 5, one cycle is completed.
Embodiment described above is preferred embodiment of the invention, but the present invention is not limited to above-mentioned embodiment,
Without departing substantially from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved,
Replace or modification belongs to protection scope of the present invention.
Claims (7)
1. a kind of multi-work piece Reciprocatory abrasive Flow polishing machine of the present invention, including power set, multi-work piece processing unit (plant), clamping dress
Put, abrasive material circulation device and servicing unit etc.；Described power set are provided by upper hydraulic cylinder (1), lower hydraulic cylinder (13), thereon
Hydraulic cylinder (1) includes piston a (2), extension bar a (3), and its lower hydraulic cylinder (13) includes piston b (14), extension bar b (12)；It is described
Multi-work piece processing unit (plant) by three (or) multi-connected clamping device (7), workpiece to be processed (9), workbench (20)；Described abrasive material circulation
Device is divided into two parts up and down, thereon abrasive material circulation device include platen a (4), barrel a (5), three (or) more continuous grinding stream siphunculus
A (6), lower abrasive material circulation device include platen b (15), barrel b (11), three (or) more continuous grinding stream siphunculus b (19)；Described folder
Tight device includes clamping cylinder a (10), clamping cylinder b (21), clamps pull bar a (8), clamps pull bar b (21)；Described servicing unit bag
Include hydraulic system, guidance panel, fixed cross beam etc..
A kind of 2. multi-work piece Reciprocatory abrasive Flow polishing machine according to claim 1, it is characterised in that：Upper hydraulic cylinder (1),
Lower hydraulic cylinder (13) is individually fixed in main frame (23) upper and lower ends, and wherein extension bar a (3) upper end connection piston a (2) lower end connects
Connect platen a (4), extension bar b (3) upper end connection platen b (15) lower end connection piston b (14), control of the hydraulic cylinder in hydraulic system
The lower motion of system drives the up and down motion of platen, extrudes abrasive polishing workpiece to be processed in barrel a (5) and barrel b (11).
A kind of 3. multi-work piece Reciprocatory abrasive Flow polishing machine according to claim 1, it is characterised in that：Three (or) multi-joint folder
Tool (7) with three (or) more continuous grinding stream siphunculus a a, b, c port is connected, three (or) more continuous grinding stream siphunculus a (6) and barrel a
(5) bottom is connected, three (or) multi-connected clamping device (7) and workbench (20) clamp workpiece to be processed (9), three (or) more continuous grinding material
Runner pipe b (19) d, e, f port is connected with workbench (20), three (or) more continuous grinding stream siphunculus b (19) and barrel b (11)
Bottom is connected.
A kind of 4. multi-work piece Reciprocatory abrasive Flow polishing machine according to claim 1, it is characterised in that：Clamping cylinder a (10),
Clamping cylinder b (21) cylinder barrel is fixed at left and right sides of main frame by fixed cross beam a (16) and fixed cross beam b (17), clamps pull bar a
(8) and clamp pull bar b (21) with three (or) multi-connected clamping device (7) is connected, scuffing of cylinder bore drive fixture can realize three (or) multi-connected clamping device
Simultaneously clamp on motion.
A kind of 5. multi-work piece Reciprocatory abrasive Flow polishing machine according to claim 2, it is characterised in that：In barrel a (5)
Abrasive material can be added by hopper (22), and work pieces process is completed abrasive material and is stored in barrel b (11).
A kind of 6. multi-work piece Reciprocatory abrasive Flow polishing machine according to claim 1,2, it is characterised in that：Upper hydraulic pressure (1),
Lower hydraulic cylinder (13), clamping cylinder a (10), clamping cylinder b (21) share a set of hydraulic system, cost-effective.
A kind of 7. multi-work piece Reciprocatory abrasive Flow polishing machine according to claim 1,2,3., it is characterised in that：Three (or)
Multi-connected clamping device (7) and workbench (20) can simultaneously clamp on three (or) multiple workpieces to be processed (9)；Three (or) more continuous grinding streams
Siphunculus a (6), workbench (20), three (or) more continuous grinding stream siphunculus b (19) communicate with workpiece to be processed (9) endoporus so that mill
Material can move back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709594.7A CN107336124A (en) | 2017-08-05 | 2017-08-05 | A kind of multi-work piece Reciprocatory abrasive Flow polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709594.7A CN107336124A (en) | 2017-08-05 | 2017-08-05 | A kind of multi-work piece Reciprocatory abrasive Flow polishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107336124A true CN107336124A (en) | 2017-11-10 |
Family
ID=60215029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710709594.7A Pending CN107336124A (en) | 2017-08-05 | 2017-08-05 | A kind of multi-work piece Reciprocatory abrasive Flow polishing machine |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326638A (en) * | 2018-01-09 | 2018-07-27 | 上海理工大学 | Box magnetic coupling fluid polishing device |
| CN108714591A (en) * | 2018-04-07 | 2018-10-30 | 无锡市恒利弘实业有限公司 | A kind of abrasive grains cleaning device |
| 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 |
| CN110605654A (en) * | 2019-10-16 | 2019-12-24 | 浙江工业大学 | Through hole polishing device and method under variable electric field and rotating magnetic field |
| CN110802501A (en) * | 2019-11-28 | 2020-02-18 | 山东润通齿轮集团有限公司 | Fluid polishing equipment for mold and polishing method thereof |
| CN110842750A (en) * | 2019-11-13 | 2020-02-28 | 中国航发动力股份有限公司 | Clamping device for abrasive flow deburring machine and mounting method thereof |
| CN112476226A (en) * | 2020-12-03 | 2021-03-12 | 首都航天机械有限公司 | Device and method for improving polishing uniformity of abrasive flow of complex flow channel |
| CN112621550A (en) * | 2020-12-05 | 2021-04-09 | 湖州师范学院 | Abrasive particle polishing equipment |
| CN113146457A (en) * | 2021-05-11 | 2021-07-23 | 中国工程物理研究院机械制造工艺研究所 | Surface polishing device and method for metal parts manufactured by additive manufacturing |
| CN113770903A (en) * | 2021-09-06 | 2021-12-10 | 南京航空航天大学 | Miniaturized abrasive flow machining device for preparing soft elastic abrasive sample |
| CN114161312A (en) * | 2021-11-29 | 2022-03-11 | 北京精密机电控制设备研究所 | Tool and method for deburring valve pocket radial hole through extrusion honing |
| CN114700881A (en) * | 2022-03-30 | 2022-07-05 | 深圳大华轴承有限公司 | Special miniature bearing inner race burnishing device |
| CN115781492A (en) * | 2023-02-06 | 2023-03-14 | 常州纺兴精密机械有限公司 | Polishing equipment and method for spinneret orifice of medical melt-blown fabric spinneret plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108326638A (en) * | 2018-01-09 | 2018-07-27 | 上海理工大学 | Box magnetic coupling fluid polishing device |
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