CN106914825A - A kind of water jet precise grinding process - Google Patents
A kind of water jet precise grinding process Download PDFInfo
- Publication number
- CN106914825A CN106914825A CN201710188207.XA CN201710188207A CN106914825A CN 106914825 A CN106914825 A CN 106914825A CN 201710188207 A CN201710188207 A CN 201710188207A CN 106914825 A CN106914825 A CN 106914825A
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- CN
- China
- Prior art keywords
- abrasive particle
- workpiece
- pendulum device
- mill
- mill pendulum
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of water jet precise grinding process.The method is comprised the following steps：Workpiece is attached to whirligig.Abrasive particle is placed on the face to be processed of workpiece.Mill pendulum device is moved to predeterminated position to workpiece direction, and drives mill pendulum device linear reciprocation on workpiece to swing.Control fluidic device exports the fluid of preset pressure, fluidic channel output of the fluid from the mill pendulum device to the mill pendulum device.Abrasive particle is limited to the limiting section in the fluidic channel, and the fluid forms barrier film between the abrasive particle and the limiting section and rotates abrasive particle so that the abrasive particle is with mill pendulum device movement and grinding work piece.The characteristics of it has high in machining efficiency, surface quality uniformity is good.
Description
Technical field
The present invention relates to precision processing technology field, more particularly, to a kind of water jet precise grinding process.
Background technology
With the improvement of living standards, requirement of the people to product quality also more and more higher.Therefore, raw material or blank warp
After crossing the processing of stock-removing machine or mould, to be ground, polish etc. toward contact and process, being conformed to the quality for ensureing product
Ask.
However, the product big for batch, using existing grinding or glossing, its processing efficiency is low, it is difficult to ensure
Surface quality uniformity after Product processing, and it is big in some angles grinding difficulty.Accordingly, it would be desirable to be improved.
The content of the invention
For the deficiency that above-mentioned prior art is present, it is an object of the invention to provide a kind of water jet precise grinding process.
The characteristics of it has high in machining efficiency, surface quality uniformity is good.
To achieve these goals, the technical solution adopted in the present invention is：A kind of water jet precise grinding process, the party
Method is comprised the following steps：
S101, whirligig is attached to by workpiece；
S102, abrasive particle is placed on the face to be processed of workpiece；
S103, is moved to predeterminated position, and drive the mill pendulum device straight on workpiece by mill pendulum device to workpiece direction
Line reciprocally swinging；
S104, control fluidic device exports the fluid of preset pressure to the mill pendulum device, and fluid is from the mill pendulum device
On fluidic channel output；
Wherein, abrasive particle is limited to the limiting section in the fluidic channel, and the fluid is in the abrasive particle and the limit
Barrier film is formed between the portion of position and abrasive particle is rotated so that the abrasive particle is with mill pendulum device movement and grinding work piece；
S105, suspends and departs from the machined surface of workpiece after the mill pendulum device operation Preset Time；
S106, pushes on new abrasive particle to the machined surface of workpiece；
S107, the mill pendulum device is moved to predeterminated position to workpiece direction again, and drives the mill pendulum device in work
Linear reciprocation swings on part；
Circulation performs step S103~S107 until grinding terminates.
Further, when the linear reciprocation swing on workpiece of mill pendulum device is driven, the whirligig drives workpiece rotation.
Further, the preset pressure of the fluid is 10-30MPa, and the flow of each jet orifice is 0.5-1.5L/min.
Further, mill pendulum device and the face to be processed are smaller than or equal to 1/2nd of abrasive grain diameter.
Further, the momentum computing formula of the abrasive particle is：
Wherein, m is abrasive particle quality；V is grain motion speed；σ is stress tensor；ρ is density；
∏ijIt is viscous force；WijIt is kernel function.
Further, the energy balane formula of the abrasive particle is：
Wherein, m is abrasive particle quality；V is grain motion speed；σ is stress tensor；ρ is density；
∏ijIt is viscous force；WijIt is kernel function；E(xi) it is abrasive particle internal energy unit；HiIt is heat flow modulus.
Further, the plane residing for the mill pendulum device upper limit portion is inclined with the swaying direction of the mill pendulum device in one
Angle.
Further, the mill pendulum device includes deflector and the grinding disc being attached on the deflector, the deflector
The some pod apertures being connected with the fluidic device are provided with, some jet orifices, the pod apertures are offered on the grinding disc
Turn on to form fluidic channel with the jet orifice, output end of the limiting section located at the jet orifice.
Further, the deflector is provided with the blending space for converging some pod apertures, and the grinding disc is enclosed in institute
State at the opening of blending space, the jet orifice is turned on the blending space.
Further, the whirligig includes electric rotating machine, the rotation dish on the output shaft of electric rotating machine, described
Rotation dish is used to fix workpiece and drives workpiece to rotate.
After using said structure, the invention has the advantages that compared with the prior art,：
Limiting section is set in fluidic channel on mill pendulum device, the position of abrasive particle is limited by limiting section, make abrasive particle
It is good with grinding work piece, ground effect on mill pendulum device to be evenly distributed on.Jet action is on abrasive particle so that abrasive particle can with it is spacing
Barrier film is formed between portion, the service life of mill pendulum device is improved.Jet can drive abrasive particle to be rotated in limiting section, make the mill of abrasive particle
Damage more uniform, improve the service life and ground effect of abrasive particle.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is main structure diagram of the invention.
Fig. 2 is the structural representation in section at A-A in Fig. 1.
Fig. 3 is the mplifying structure schematic diagram of section at deflector and grinding disc in the present invention.
Fig. 4 is the mplifying structure schematic diagram at grinding disc upper limit portion in the present invention.
In figure：Mill pendulum device 10；Deflector 11；Pod apertures 111；Blending space 112；Grinding disc 12；Limiting section 121；Penetrate
Discharge orifice 122；Swing mechanism 13；Mounting post 131；Eccentric wheel assembly 132；Link assembly 133；First installing plate 14；Guiding mechanism
15；Guide rod 151；Sliding block 152；Fluidic device 20；Whirligig 30；Rotation dish 31；Electric rotating machine 32；Elastic device 40；Guide pillar
Component 41；Guide post 411；Locating part 412；Frame 50；Lead column 51；Second installing plate 52；Retractor device 60；Workpiece 70；Mill
Grain 80.
Specific embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
A kind of embodiment, water jet precise grinding process, the method is comprised the following steps：
Step S101, whirligig 30 is attached to by workpiece 70.
Step S102, abrasive particle 80 is placed on the face to be processed of workpiece 70.Abrasive particle 80 can be by workpiece to be processed 70
Select the diameter and species of abrasive particle 80.
Step S103, predeterminated position is moved to by mill pendulum device 10 to the direction of workpiece 70, drives mill pendulum device 10 in workpiece
Linear reciprocation swings on 70.Retractor device 60 in frame 50 drives mill pendulum device 10 to move so that mill pendulum device 10 and workpiece
Gap is formed between 70 face to be processed, the gap is both average value.Alternatively, between mill pendulum device 10 and face to be processed
Away from 1/2nd less than or equal to the diameter of abrasive particle 80.When step S103 is performed, whirligig 30 drives workpiece 70 to rotate.
Step S104, control fluidic device 20 to mill pendulum device 10 export preset pressure fluid, fluid from mill pendulum device
Fluidic channel output on 10.Wherein, the preset pressure of fluid is 10-30MPa, such as, the pressure of fluid is 10,15,20,25
Or 30MPa etc..The flow of each jet orifice is 0.5-1.5L/min.
As shown in Figure 1 and Figure 4, abrasive particle 80 is limited to the limiting section 121 in fluidic channel, and fluid is in abrasive particle 80 and limit
Barrier film is formed between position portion 121 and abrasive particle 80 is rotated so that abrasive particle 80 is with the movement of mill pendulum device 10 and grinding work piece 70.
Step S105, suspends and departs from the machined surface of workpiece 70 after the operation of mill pendulum device 10 Preset Time.In operation
Preset Time, such as 1 minute, abrasive particle 80 had abrasion, it is impossible to which effective processing workpiece surface is, it is necessary to change abrasive particle 80.
Step S106, pushes on new abrasive particle 80 to the machined surface of workpiece 70.
Step S107, the mill pendulum device 10 is moved to predeterminated position to the direction of workpiece 70 again, and drives the mill pendulum
The linear reciprocation on workpiece 70 of device 10 swings.
Circulation performs step S103~S107 until grinding terminates.
Jet action makes particulate 80 with kinetic energy and energy on particulate 80.Particulate 80 is rotatable and is moved with mill pendulum device 10
Dynamic grinding work piece 70.
Wherein, the momentum computing formula of abrasive particle 80 is：
The energy balane formula of abrasive particle 80 is：
Wherein, m is abrasive particle quality；V is grain motion speed；σ is stress tensor；ρ is density；
∏ijIt is viscous force；WijIt is kernel function；E(xi) it is abrasive particle internal energy unit；HiIt is heat flow modulus.
Swung by the linear reciprocation for grinding pendulum device 10 and whirligig 30 drives workpiece 70 to rotate so that abrasive particle 80 can be
The face to be processed of even processing workpiece 70, it is high in machining efficiency.Jet action on abrasive particle 80, in abrasive particle 80 and limiting section 121
Barrier film is formed between wall, when movement driving polishing 70 surface of grinding work piece of abrasive particle 80 of pendulum device 10 is ground, abrasive particle 80 will not be direct
Act on limiting section 121, the service life of mill pendulum device 10 can be extended.Jet action on abrasive particle 80 has abrasive particle 80
Downward active force, abrasive particle 80 can also carry out rotating operation when planar movement is carried out in the presence of grinding pendulum device 10.Pass through
Jetting flow abrasive particle 80 rotates so that abrasive particle 80 is during grinding work piece 70, and the loss of itself of abrasive particle 80 is uniform, extension mill
The grinding life-span of grain 80.Meanwhile, jet can in time rinse the abrasive dust on the surface of workpiece 70 and the abrasive particle 80 of loss, it is to avoid workpiece 70
Abrasive dust or injuring for abrasive particle 80 is lost that surface may be subject to.By jet action in the abrasive particle 80 being defined at limiting section 121,
Abrasive particle 80 is evenly distributed so that the energy Even Grinding workpiece 70 of mill pendulum device 10, ground effect stabilization is high in machining efficiency.
After operating procedure S103 and step S104 to Preset Time, mill pendulum device 10 stops straight reciprocating motion and rotation
The rotation of device 30.Under the drive of retractor device 60, machined surface surface of the mill pendulum device 10 away from workpiece 70.Fluidic device 20
Can be out of service, or change output pressure and the fluid for exporting, such as export rust remover, antirust agent and the brightener liquid of low pressure
Body, is allowed to carry out protection treatment to workpiece.
Plane and the swaying direction of mill pendulum device 10 residing for mill pendulum device 10 upper limit portion 121 are in an inclination angle.Adding
During work workpiece 70, limiting section 121 be arranged on workpiece 70 just to mill pendulum device 10 on, mill pendulum device 10 can go up in the horizontal direction
Reciprocally swinging so that mill pendulum device 10 can uniformly process the surface of workpiece 70.And the plane residing for limiting section 121 and mill pendulum device
10 swaying direction is in an inclination angle, i.e., an inclination angle intersected is formed between mill pendulum device 10 and workpiece 70.When abrasive particle 80
After processing workpiece 70 and loss, the diameter of abrasive particle is less than after being presently in the gap between limiting section 121 and workpiece 70, abrasive particle 80
Can depart from from limiting section 121 under fluid matasomatism, new abrasive particle 80 can be entered into limiting section 121 and continue grinding work piece
70, and circulate successively, until the completion of processing of workpiece 70.
As shown in Fig. 3 and Fig. 4：In one embodiment, mill pendulum device 10 includes deflector 11 and is attached to deflector 11
On grinding disc 12.Deflector 11 is provided with some pod apertures 111 being connected with fluidic device 20, if being offered on grinding disc 12
Dry jet orifice 122, pod apertures 111 form fluidic channel, output of the limiting section 121 located at jet orifice 122 with the conducting of jet orifice 122
End.Further, deflector 11 is provided with the blending space 112 for converging some pod apertures 111, and grinding disc 12 is enclosed in blending space
At 112 opening, jet orifice 122 is set to be turned on blending space 112.
Blending space 112 is recessed downwards to be formed from the side space of deflector 11, and grinding disc 12 blocks blending space 112
Opening, make fluidic device 20 be input into fluid filling after blending space 112 along jet orifice 122 uniformly export.Preferably,
Pod apertures 111 are evenly distributed on deflector 11 so that the fluid that fluidic device 20 is input to diversion space is uniform, then causes
The Fluid pressure exported from jet orifice 122 is uniform.
The connection of pendulum device 10 and fluidic device 20, the quantity of jet orifice 122 can be conveniently ground by setting deflector 11
More than the quantity of pod apertures 111, deflector 11 can further adjust the pressure and the uniformity of the output fluid of jet orifice 122, improve
Jet effect.Grinding disc 12 easily weares and teares, and can be fixed on by way of being fastenedly connected on deflector 11, can be timely upon wear
Change, reduce the cost of equipment, improve machining accuracy.
Limiting section 121 is recessed along jet orifice 122 from the surface of grinding disc 12 and is formed, the diameter of limiting section 121 from and jet
The intersection in hole 122 gradually increases to the surface direction of grinding disc 12, wherein, limiting section 121 is recessed in cone-shaped or arc surfaced.
Abrasive particle 80 is limited in limiting section 121, and surface of the jet action on abrasive particle 80 and along limiting section 121 is flowed out.
As shown in Fig. 1 and Fig. 2：To improve the efficiency of the mill processing workpiece 70 of pendulum device 10 and the uniformity of finished surface, mill
Pendulum device 10 also includes the swing mechanism 13 for driving deflector 11 to move back and forth.In one embodiment, swing mechanism 13 includes
Mounting post 131, eccentric wheel assembly 132 and be articulated and connected eccentric wheel assembly 132 and mounting post 131 on deflector 11
Link assembly 133, eccentric wheel assembly 132 rotate drive deflector 11 move back and forth.Eccentric wheel assembly 132 includes motor and receives
The eccentric wheel that motor is driven, link assembly 133 is hinged on eccentric wheel.When motor drives eccentric wheel to rotate, eccentric wheel driving
One end of dynamic connecting rod moves in a circle.Guiding mechanism 15 is installed in frame 50, guiding mechanism 15 includes that guide rod 151 and cunning set
In the sliding block 152 on guide rod 151.The sliding block 152 is connected with deflector 11 so that the other end of link assembly 133 drives water conservancy diversion
Plate 11 does straight reciprocating motion, then causes grinding disc 12 along the surface linear reciprocating motion of workpiece 70.Wherein, link assembly
133 use double thread structure, the spacing between adjustable eccentric and mounting post 131.
As shown in Figure 1：Equipment also includes the elastic device 40 in frame 50, and elastic device 40 is pushed against to elasticity
On mill pendulum device 10 so that mill pendulum device 10 is along the direction elastic telescopic of elastic device 40.In one embodiment, elastic device
40 include the first installing plate 14, the Guide column component 41 of connection mill pendulum device 10 and the flexible member in Guide column component 41.
The pushing and pressing of flexible member elasticity are on the first installing plate 14 with mill pendulum device 10.
Lead column 51 is installed in frame 50, the first installing plate 14 is slidedly arranged in lead column 51.Guide column component 41 includes
Guide post 411 and the locating part on guide post 411 412.One end of guide post 411 is fixed on mill pendulum device 10, separately
One end is through the first installing plate 14 and installs locating part 412.Also cunning sets and is provided with the second installing plate 52 in lead column 51, elasticity
Device 40 is installed and elasticity is connected to the side of the second installing plate 52, and mill pendulum device 10 is attached to the another of the second installing plate 52
Side.Retractor device 60 is installed in frame 50, the retractor device 60 is used to drive the first installing plate 14 to be moved along lead column 51,
So that mill pendulum device 10 is moved to the direction of workpiece 70.Retractor device 60 can be using structures such as hydraulic cylinder or cylinders.
When mill pendulum device 10 is impacted or moved up and down, mill pendulum device 10 can overcome the elastic force of flexible member,
And the axis direction along guide post 411 is moved, and makes mill pendulum device 10 when being impacted, with protective effect.Meanwhile, put in mill
When device 10 is moved, moreover it is possible to carry out micro stretching motion, when mill pendulum device 10 is processed workpiece 70, ground effect is more preferable.
As shown in Figure 1：Whirligig 30 includes electric rotating machine 32, the rotation dish on the output shaft of electric rotating machine 32
31, rotation dish 31 is used to fix workpiece 70 and drives workpiece 70 to rotate.Rotation dish 31 drives workpiece 70 relative to mill pendulum device 10
Move in a circle, coordinate the linear reciprocating motion of mill pendulum device 10, the cooperation in direction of doing more physical exercises makes the Surface Machining matter of workpiece 70
Measure, it is high in machining efficiency.
The water jet accurate grinding equipment also include water circulation system, the abrasive particle circulatory system and water-abrasive particle separator,
Grinding smear removal device.Water can be recycled after multiple times of filtration, after abrasive particle is through sub-sieve, after the abrasive particle of same mesh number is collected
Can continue to use, greatly save resource, reduce and waste.
The device of jet is widely used at present, and other structures and principle are same as the prior art, repeat no more here.
Claims (10)
1. a kind of water jet precise grinding process, it is characterised in that the method is comprised the following steps：
S101, whirligig is attached to by workpiece；
S102, abrasive particle is pushed on the face to be processed of workpiece；
S103, is moved to predeterminated position, and drive mill pendulum device straight line on workpiece past by mill pendulum device to workpiece direction
Physical pendulum is moved；
S104, control fluidic device exports the fluid of preset pressure to the mill pendulum device, and fluid is from the mill pendulum device
Fluidic channel is exported；
Wherein, abrasive particle is limited to the limiting section in the fluidic channel, and the fluid is in the abrasive particle and the limiting section
Between formed and barrier film and rotate abrasive particle so that the abrasive particle is with mill pendulum device movement and grinding work piece；
S105, suspends and departs from the machined surface of workpiece after the mill pendulum device operation Preset Time；
S106, pushes on new abrasive particle to the machined surface of workpiece；
S107, the mill pendulum device is moved to predeterminated position to workpiece direction again, and drives the mill pendulum device on workpiece
Linear reciprocation swings；
Circulation performs step S103~S107 until grinding terminates.
2. method according to claim 1, it is characterised in that swung mill pendulum device linear reciprocation on workpiece is driven
When, the whirligig drives workpiece rotation.
3. method according to claim 1, it is characterised in that the preset pressure of the fluid is 10-30MPa, and each is penetrated
The flow of discharge orifice is 0.5-1.5L/min.
4. method according to claim 1, it is characterised in that the mill pendulum device being smaller than or waiting with face to be processed
In 1/2nd of abrasive grain diameter.
5. method according to claim 1, it is characterised in that the momentum computing formula of the abrasive particle is：
Wherein, m is abrasive particle quality；V is grain motion speed；σ is stress tensor；ρ is density；
∏ijIt is viscous force；WijIt is kernel function.
6. method according to claim 1, it is characterised in that the energy balane formula of the abrasive particle is：
Wherein, m is abrasive particle quality；V is grain motion speed；σ is stress tensor；ρ is density；
∏ijIt is viscous force；WijIt is kernel function；E(xi) it is abrasive particle internal energy unit；HiIt is heat flow modulus.
7. method according to claim 1, it is characterised in that plane residing for the mill pendulum device upper limit portion with it is described
The swaying direction for grinding pendulum device is in an inclination angle.
8. method according to claim 1, it is characterised in that the mill pendulum device includes deflector and is attached to described leading
Grinding disc on stream plate, the deflector is provided with some pod apertures being connected with the fluidic device, is opened on the grinding disc
Some jet orifices are provided with, the pod apertures turn on to form fluidic channel with the jet orifice, the limiting section is located at the jet
The output end in hole.
9. method according to claim 8, it is characterised in that the deflector is provided with and converges the mixed of some pod apertures
Space is closed, the grinding disc is enclosed at the opening of the blending space, the jet orifice is turned on the blending space.
10. method according to claim 1, it is characterised in that the whirligig includes electric rotating machine, installed in rotation
Rotation dish on the output shaft of motor, the rotation dish is used to fix workpiece and drives workpiece to rotate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710188207.XA CN106914825B (en) | 2017-03-27 | 2017-03-27 | A kind of water jet precise grinding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188207.XA CN106914825B (en) | 2017-03-27 | 2017-03-27 | A kind of water jet precise grinding process |
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| CN106914825A true CN106914825A (en) | 2017-07-04 |
| CN106914825B CN106914825B (en) | 2018-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270934A (en) * | 2019-06-24 | 2019-09-24 | 崔云兰 | The process of surface treatment system and technique of Automobile Plastic Parts |
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| CN1240696A (en) * | 1998-06-30 | 2000-01-12 | 日本电气株式会社 | Surface polishing machine |
| CN101172330A (en) * | 2007-11-22 | 2008-05-07 | 上海交通大学 | High-rigidity turning spherical surface numerical control accurate grinding equipment |
| CN201410631Y (en) * | 2009-06-19 | 2010-02-24 | 天津市精诚机床制造有限公司 | Layout of five-axis numerical control blade milling machine with curve-tooth bevel gear milling cutter |
| US20110027032A1 (en) * | 2008-09-18 | 2011-02-03 | David Keller | Systems And Methods For Machining Materials |
| CN103143881A (en) * | 2013-01-22 | 2013-06-12 | 李辉玲 | Low-resistance rolling polishing method |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240696A (en) * | 1998-06-30 | 2000-01-12 | 日本电气株式会社 | Surface polishing machine |
| CN101172330A (en) * | 2007-11-22 | 2008-05-07 | 上海交通大学 | High-rigidity turning spherical surface numerical control accurate grinding equipment |
| US20110027032A1 (en) * | 2008-09-18 | 2011-02-03 | David Keller | Systems And Methods For Machining Materials |
| CN201410631Y (en) * | 2009-06-19 | 2010-02-24 | 天津市精诚机床制造有限公司 | Layout of five-axis numerical control blade milling machine with curve-tooth bevel gear milling cutter |
| CN103143881A (en) * | 2013-01-22 | 2013-06-12 | 李辉玲 | Low-resistance rolling polishing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110270934A (en) * | 2019-06-24 | 2019-09-24 | 崔云兰 | The process of surface treatment system and technique of Automobile Plastic Parts |
| CN110270934B (en) * | 2019-06-24 | 2021-08-10 | 瑞安市强良塑料制品有限公司 | Surface treatment process system and process for automobile plastic parts |
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