CN109333368A - A kind of device based on dry ice Jet Polishing - Google Patents

A kind of device based on dry ice Jet Polishing Download PDF

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Publication number
CN109333368A
CN109333368A CN201811275924.7A CN201811275924A CN109333368A CN 109333368 A CN109333368 A CN 109333368A CN 201811275924 A CN201811275924 A CN 201811275924A CN 109333368 A CN109333368 A CN 109333368A
Authority
CN
China
Prior art keywords
nozzle
dry ice
link block
pressure
nozzle connector
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.)
Pending
Application number
CN201811275924.7A
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Chinese (zh)
Inventor
谭援强
郑宇斌
陈宝明
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Huaqiao University
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Huaqiao University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huaqiao University filed Critical Huaqiao University
Priority to CN201811275924.7A priority Critical patent/CN109333368A/en
Publication of CN109333368A publication Critical patent/CN109333368A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00Abrasive blasting machines or devices; Plants

Abstract

The present invention provides a kind of devices based on dry ice Jet Polishing, including liquid carbon dioxide storage bottle, liquid delivery tube, pressure and speed regulating system, cryogenic high pressure shut-off valve, nozzle, nozzle connector, nozzle angle adjuster, rotary table, apparatus for adjusting position;The apparatus for adjusting position drive nozzle connector along the x axis, Y direction, Z-direction it is mobile;Polished material is set on the rotary table;The surface polishing for having the dry ice particle jet stream of certain impact power for polished material can be obtained using the technical program.

Description

A kind of device based on dry ice Jet Polishing
Technical field
The present invention relates to dry ice particle spraying technique field, in particular to a kind of devices based on dry ice Jet Polishing.
Background technique
Traditional dry ice particle spraying technique is by the way of gas injection, this does not only result in dry ice particle and was conveying Obstruction and collision loss are easy to happen in journey, it is difficult to the supply dry ice particle of continuous uniform, and use gas injecting operations institute The equipment needed is increasingly complex, needs feed device, pelletizer etc., so that equipment cost is higher.In addition, traditional dry ice blasting The injection apparatus injection pressure of technology is lower, and impact force is not strong, it is difficult to realize the polishing of material surface to be processed.Therefore one is needed Kind have can continuous uniform, variable voltage control, dry ice flow shooting and polishing device suitable for processing different materials.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art described above, a kind of dress based on dry ice Jet Polishing is provided It sets, obtains the surface polishing that there is the dry ice particle jet stream of certain impact power to be used for polished material.
In order to solve the above-mentioned technical problems, the present invention provides a kind of devices based on dry ice Jet Polishing, including liquid Carbon dioxide storage bottle, liquid delivery tube, pressure and speed regulating system, cryogenic high pressure shut-off valve, nozzle, nozzle connector, nozzle angle Spend adjuster, rotary table, apparatus for adjusting position, the apparatus for adjusting position drive nozzle connector along the x axis, Y-axis Direction, Z-direction are mobile;Polished material is set on the rotary table;
The liquid carbon dioxide storage bottle connects the pressure and speed regulating system, the variable voltage control by liquid delivery tube System connects the nozzle connector by the liquid delivery tube, and the nozzle connector is detachably connected with nozzle;It is described The cryogenic high pressure shut-off valve is provided on liquid delivery tube between pressure and speed regulating system and nozzle connector;The nozzle connects It connects device to connect with the nozzle angle adjuster, for adjusting the setting angle of the nozzle connector;The variable voltage control system System carries out multi-stage pressure regulating to liquid carbon dioxide, and the dry ice jet stream for keeping self-pressure regulating speed-regulating system spouting is pressed with different outgoing Power;
In a preferred embodiment;The apparatus for adjusting position includes cross bar, vertical pole and vertical bar;The nozzle connector It is fixed on the first link block;The link block is provided with the first connecting hole, is passed through by the cross bar being arranged along the x axis described First connecting hole realizes being slidably connected for first link block and cross bar, realizes first link block in the position of X-direction Set adjustment;The both ends of the cross bar are connected separately with the second link block, and second link block is provided with the second connecting hole, lead to It crosses the vertical pole that is arranged along the y axis and passes through second connecting hole and realize being slidably connected for second link block and vertical pole, it is real Existing second link block is adjusted in the position of Y direction;One end of the vertical pole is respectively connected with third link block, the third Link block is provided with third connecting hole, passes through the third connecting hole by the vertical bar that is arranged along Z-direction and realizes described the Three link blocks and vertical bar are slidably connected, and realize that the third link block is adjusted in the position of Z-direction.
In a preferred embodiment;The outlet of the nozzle is cylindrical spray orifice close to one end of polished material; It is a rotary table that the entrance of the nozzle, which is close to one end of nozzle connector, from nozzle connector to polished material direction rotary table Section is gradually increased.
In a preferred embodiment;The rotary table includes base station, revolving gear and is provided with circular groove Work top;The base station is fixedly installed on a pedestal, and the upper and lower ends of the revolving gear are separately connected base station and work Table top;The revolving gear is driven at the uniform velocity to rotate to be parallel to Z-direction as center axis by driving motor;The work top On be provided with a vacuum sucking holes, for fixing the polished material.
In a preferred embodiment;The vertical bar is fixedly installed on the pedestal by fang bolt.
Compared to the prior art, technical solution of the present invention have it is following the utility model has the advantages that
1. the present invention is provided with pressure and speed regulating system in whole device, the spray in dry ice jet process not only may be implemented The control of injection pressure and speed, and the throttling expansion principle that can use dry ice obtains has the dry of certain impact power and partial size Ice microparticle jetting.
2. the translation in X, Y, Z axis direction and returning for Z-direction in entirely work translating device, may be implemented in the present invention Turn, dry ice jet stream is allowed completely and uniformly to polish material surface to be processed.
3. the nozzle that the present invention uses is connected through a screw thread with nozzle connector, either different for polishing in this way Material surface or nozzle receive abrasion in prolonged process, can timely be replaced.
It, can be to avoid since dry ice particle be in high-speed jet 4. its periphery of the nozzle that the present invention uses is a kind of truncated conical shape Hit damage of the line splashed back after polished material surface to devices other after nozzle.
5. the present invention does not need the polishing for treating rapidoprint surface with water or can be realized with a small amount of water, significantly The discharge rate for reducing waste water and waste reaches saving water resource, reduces the purpose of environmental pollution.
6. the present invention forms dry ice particle jet stream using throttling expansion principle, can be to avoid in conventional dry ice spraying technique The loss blocked and its collide of dry ice particle during transportation, reduces the abrasion of nozzle, does not also need traditional dry ice blasting Additional feed device and mixing chamber, substantially reduce cost in technology.
7. the present invention carries out jet stream processing as abrasive material using dry ice particle, can not only be adjusted by pressure and speed regulating system Pressure is sprayed, can also be by the displacement of adjusting Z-direction, the material surface obtained after being suitble to Dry ice cleaning to polish can be real Existing self-cleaning effect, the cleaning link after removing traditional processing reduce the waste of water resource.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the device based on dry ice Jet Polishing in the preferred embodiment of the present invention;
Fig. 2 is the nozzle arrangements diagrammatic cross-section of the device based on dry ice Jet Polishing in the preferred embodiment of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
A kind of device based on dry ice Jet Polishing, with reference to Fig. 1, including liquid carbon dioxide storage bottle 1, liquid delivery tube 4, pressure and speed regulating system 2, cryogenic high pressure shut-off valve 3, nozzle 10, nozzle connector 9, nozzle angle adjuster 8, rotary work Platform, apparatus for adjusting position;The apparatus for adjusting position drive nozzle connector 9 along the x axis, Y direction, Z-direction it is mobile; Polished material is set on the rotary table.
The connection relationship of each element are as follows: the liquid carbon dioxide storage bottle 1 connects the tune by liquid delivery tube 4 Speed-regulating system 2 is pressed, the pressure and speed regulating system 2 connects the nozzle connector 9, the nozzle by the liquid delivery tube 4 Connector 9 is detachably connected with nozzle 10, and in the present embodiment, the nozzle 10 is connected through a screw thread with nozzle connector 9;This Sample either receives abrasion for polishing different materials surface or nozzle 10 in prolonged process, is ok Timely replaced.
The cryogenic high pressure is provided on liquid delivery tube 4 between the pressure and speed regulating system 2 and nozzle connector 9 to cut Only valve 3;The nozzle connector 9 is connect with the nozzle angle adjuster 8, for adjusting the setting of the nozzle connector 9 Angle;The pressure and speed regulating system 2 carries out multi-stage pressure regulating to liquid carbon dioxide, keeps self-pressure regulating speed-regulating system 2 spouting Dry ice jet stream has different injection pressures out.The present invention is provided with pressure and speed regulating system 2 in whole device, not only may be implemented to do The control of injection pressure and speed in ice jet process, and the throttling expansion principle that can use dry ice is obtained with certain The dry ice particle jet stream of impact force and partial size.
In order to be adjusted to the position of the nozzle 10 in three different directions to adapt to different polishing materials;Institute Stating apparatus for adjusting position includes cross bar 6, vertical pole 5,16 and vertical bar 17;The nozzle connector 9 is fixed on the first link block 7; The link block is provided with the first connecting hole, is passed through described in first connecting hole realization by the cross bar 6 being arranged along the x axis First link block 7 is slidably connected with cross bar 6, realizes that first link block 7 is adjusted in the position of X-direction;The cross bar 6 Both ends be connected separately with the second link block, second link block is provided with the second connecting hole, by being arranged along the y axis Vertical pole 5,16 pass through second connecting hole and realize being slidably connected for second link block and vertical pole 5,16, realization described the Two link blocks are adjusted in the position of Y direction;One end of the vertical pole 5,16 is respectively connected with third link block, the third connection Block is provided with third connecting hole, passes through the third connecting hole by the vertical bar 17 being arranged along Z-direction and realizes the third Link block is slidably connected with vertical bar 17, realizes that the third link block is adjusted in the position of Z-direction;In entire work translation In device, the translation in X, Y, Z axis direction and the revolution of Z-direction may be implemented, allow dry ice jet stream complete and uniform Polishing material surface to be processed.
In order to avoid hitting the line pair splashed back after polished material surface in high-speed jet due to dry ice particle The damage of other devices after nozzle 10;The outlet of the nozzle 10 with reference to described in Fig. 2 is cylinder close to one end of polished material Shape spray orifice;It is a rotary table that the entrance of the nozzle 10, which is close to one end of nozzle connector 9, from nozzle connector 9 to polished Material direction rotary table section is gradually increased.
Specifically, the rotary table includes base station 14, revolving gear 15 and the workbench for being provided with circular groove Face 12;The base station 14 is fixedly installed on a pedestal 13, the upper and lower ends of the revolving gear 15 be separately connected base station 14 and Work top 12;The revolving gear 15 is driven at the uniform velocity to rotate to be parallel to Z-direction as center axis by driving motor;It is described A vacuum sucking holes 11 are provided on work top 12, for fixing the polished material.The vertical bar 17 passes through fang bolt 18 are fixedly installed on the pedestal 13.
Using device provided by the invention implement dry ice Jet Polishing hard brittle material method the following steps are included:
Step 1: polished hard brittle material is clamped on rotary table, and is changed the outfit suitable for polished hard The nozzle 10 of fragile material;The polished hard brittle material be after tentatively polishing with certain finish stone material, Ceramics, glass, semiconductor material, any one in photoelectric material.The nozzle 10 is according to polished hard brittle material kind The difference of class replaces the nozzle 10 of different model specification and material.
Nozzle 10: being directed at polished hard brittle material surface by step 2, adjusts the outlet middle point phase of nozzle 10 For the height between polished hard brittle material surface, then 10 angular connector of nozzle is adjusted to adjust the axis of nozzle 10 Line is relative to the jet angle between polished hard brittle material surface, and the Jet Polishing process time that adjustment is certain;Root Corresponding jet pressure is adjusted according to the mechanical characteristic of polished hard brittle material;Especially by the polished hard brittle material measured Power needed for spike layer removal at low temperature, to determine the size of the jet pressure.
Step 3: opening cryogenic high pressure shut-off valve 3, dry ice particle jet stream is formed, so that polished material surface spike layer Sharply freezing embrittlement generates the cross shear for the microburst generation that impact force and dry ice sublimation generate by high-speed jet come real The removal of existing spike layer, obtains polished surface.Liquid carbon dioxide allows carbon dioxide gas height by the pressure and speed regulating system 2 Speed is by nozzle 10, the dry ice particle generated under conditions of insulation and not externally acting using throttling expansion principle, institute Stating dry ice particle size is 1 μm to 100 μm, and exit velocities are greater than 340m/s.
Specifically, dry ice Jet Polishing principle is using pressure and speed regulating system 2 by initial pressure is 5MPa or so two Carbonoxide is adjusted under suitable jet velocity and injection pressure, is then ejected by 10 high speed of nozzle, in expansion process A part of carbon dioxide absorption amount of heat, another part carbon dioxide are cooled to freezing point, form dry ice particle jet stream, impact To polished hard brittle material surface.Due in impact process by dry ice particle at -78.5 DEG C gasification distillation absorb it is a large amount of The influence of heat and generate thermal shock phenomenon, resulting in its mechanical property is changed, i.e., polished material surface spike Layer generates embrittlement, and polishing process is enabled to be more easier to carry out to improve processing efficiency.
Specifically, the impact force is that dry ice high-speed jet is collided polished hard brittle material surface and generated, It is the major way for realizing material removal in polishing process.But since dry ice Mohs' hardness (2-3) is lower, processed The dry ice of journey high speed jet stream acts on polished material surface and generates accumulation of pressure and form rolling friction process, so as to The material surface spike layer of polishing occurs to plough plough and micro-cutting obtains the preferable processing effect of finish.Simultaneously as impacting The broken then gasification distillation in a very short period of time of moment dry ice, nearly 800 times of volume expansion of dry ice during this, so that dry Ice generates microburst effect in shock point.The microburst of dry ice can generate biggish lateral shear active force, make table to be processed The roughness in face further decreases while sweeps away chip rapidly with air-flow, has achieved the purpose that polishing and self-cleaning.
The present invention does not need the polishing that rapidoprint surface is treated with water or can be realized with a small amount of water, significantly subtracts The discharge rate for having lacked waste water and waste reaches saving water resource, reduces the purpose of environmental pollution.The present invention is former using throttling expansion Reason forms dry ice particle jet stream, can to avoid the blocking of the dry ice particle in conventional dry ice spraying technique during transportation and its The loss of collision reduces the abrasion of nozzle 10, does not also need feed device and mixing chamber additional in traditional dry ice spraying technique, Substantially reduce cost.The present invention carries out jet stream processing as abrasive material using dry ice particle, can not only pass through variable voltage control system System 2 adjusts injection pressure, can also obtain the material table after being suitble to Dry ice cleaning to polish by the displacement of adjusting Z-direction Self-cleaning effect may be implemented in face, and the cleaning link after removing traditional processing reduces the waste of water resource.
The foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, Anyone skilled in the art in the technical scope disclosed by the present invention, using this design carries out the present invention non- Substantive change belongs to the behavior for invading the scope of the present invention.

Claims (5)

1. a kind of device based on dry ice Jet Polishing, it is characterised in that including liquid carbon dioxide storage bottle, liquid delivery tube, Pressure and speed regulating system, cryogenic high pressure shut-off valve, nozzle, nozzle connector, nozzle angle adjuster, rotary table, position tune Regulating device;The apparatus for adjusting position drive nozzle connector along the x axis, Y direction, Z-direction it is mobile;Polished material It is set on the rotary table;
The liquid carbon dioxide storage bottle connects the pressure and speed regulating system, the pressure and speed regulating system by liquid delivery tube The nozzle connector is connected by the liquid delivery tube, the nozzle connector is detachably connected with nozzle;The pressure regulation The cryogenic high pressure shut-off valve is provided on liquid delivery tube between speed-regulating system and nozzle connector;The nozzle connector It is connect with the nozzle angle adjuster, for adjusting the setting angle of the nozzle connector;The pressure and speed regulating system pair Liquid carbon dioxide carries out multi-stage pressure regulating, and the dry ice jet stream for keeping self-pressure regulating speed-regulating system spouting has different injection pressures out.
2. the method for dry ice Jet Polishing hard brittle material according to claim 1, it is characterised in that: the position is adjusted Device includes cross bar, vertical pole and vertical bar;The nozzle connector is fixed on the first link block;The link block is provided with first Connecting hole passes through the cunning that first connecting hole realizes first link block and cross bar by the cross bar being arranged along the x axis Dynamic connection realizes that first link block is adjusted in the position of X-direction;The both ends of the cross bar are connected separately with the second connection Block, second link block are provided with the second connecting hole, pass through second connecting hole by the vertical pole being arranged along the y axis It realizes being slidably connected for second link block and vertical pole, realizes that second link block is adjusted in the position of Y direction;It is described One end of vertical pole is respectively connected with third link block, and the third link block is provided with third connecting hole, by setting along Z-direction The vertical bar set passes through the third connecting hole and realizes being slidably connected for the third link block and vertical bar, realizes the third connection Block is adjusted in the position of Z-direction.
3. the device according to claim 2 based on dry ice Jet Polishing, it is characterised in that;The outlet of the nozzle is leaned on One end of nearly polished material is cylindrical spray orifice;It is a rotary table that the entrance of the nozzle, which is close to one end of nozzle connector, It is gradually increased from nozzle connector to polished material direction rotary table section.
4. the device according to claim 2 based on dry ice Jet Polishing, it is characterised in that;The rotary table includes Base station, revolving gear and the work top for being provided with circular groove;The base station is fixedly installed on a pedestal, the convolution The upper and lower ends of device are separately connected base station and work top;Drive the revolving gear to be parallel to Z axis by driving motor Direction is that center axis at the uniform velocity rotates;A vacuum sucking holes are provided on the work top, for fixing the polished material.
5. the device according to claim 4 based on dry ice Jet Polishing, which is characterized in that the vertical bar passes through lower margin spiral shell Silk is fixedly installed on the pedestal.
CN201811275924.7A 2018-10-30 2018-10-30 A kind of device based on dry ice Jet Polishing Pending CN109333368A (en)

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Application Number Priority Date Filing Date Title
CN201811275924.7A CN109333368A (en) 2018-10-30 2018-10-30 A kind of device based on dry ice Jet Polishing

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Application Number Priority Date Filing Date Title
CN201811275924.7A CN109333368A (en) 2018-10-30 2018-10-30 A kind of device based on dry ice Jet Polishing

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CN109333368A true CN109333368A (en) 2019-02-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157597A (en) * 2020-09-29 2021-01-01 南京航太机电有限公司 Low-temperature nitrogen cooling focusing abrasive gas jet machining machine tool

Citations (3)

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Publication number Priority date Publication date Assignee Title
US5364474A (en) * 1993-07-23 1994-11-15 Williford Jr John F Method for removing particulate matter
CN101011814A (en) * 2007-01-19 2007-08-08 电子科技大学 Method and apparatus for processing transparent conductive glass surface by dry ice particle spraying technique
CN209477992U (en) * 2018-10-30 2019-10-11 华侨大学 A kind of device based on dry ice Jet Polishing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364474A (en) * 1993-07-23 1994-11-15 Williford Jr John F Method for removing particulate matter
CN101011814A (en) * 2007-01-19 2007-08-08 电子科技大学 Method and apparatus for processing transparent conductive glass surface by dry ice particle spraying technique
CN209477992U (en) * 2018-10-30 2019-10-11 华侨大学 A kind of device based on dry ice Jet Polishing

Non-Patent Citations (1)

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Title
方景礼: "《金属材料抛光技术》", 国防工业出版社, pages: 287 - 290 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157597A (en) * 2020-09-29 2021-01-01 南京航太机电有限公司 Low-temperature nitrogen cooling focusing abrasive gas jet machining machine tool
CN112157597B (en) * 2020-09-29 2022-04-08 南京航太机电有限公司 Low-temperature nitrogen cooling focusing abrasive gas jet machining machine tool

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