CN109434683A - Burnishing machine and its constant pressure burnishing device - Google Patents
Burnishing machine and its constant pressure burnishing device Download PDFInfo
- Publication number
- CN109434683A CN109434683A CN201811435595.8A CN201811435595A CN109434683A CN 109434683 A CN109434683 A CN 109434683A CN 201811435595 A CN201811435595 A CN 201811435595A CN 109434683 A CN109434683 A CN 109434683A
- Authority
- CN
- China
- Prior art keywords
- cavity
- constant pressure
- guide rail
- sliding block
- burnishing
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/042—Balancing mechanisms
-
- 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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
Abstract
The present invention discloses a kind of constant pressure burnishing device of burnishing machine, including the guide rail being vertically arranged, be movably installed in the sliding block of guide rail be fixedly connected with the buff spindle of sliding block, sliding block lower end surface is provided with the piston hole extended straight up, further include be vertically arranged and with the relatively-stationary support rod of guide rail, the upper end of support rod is horizontally disposed piston platform, piston platform protrudes into piston hole to form closed cavity, sliding block can be moved along guide rail to change the volume of cavity, the air inlet of cavity is connected to gas source, the exhaust outlet of cavity is connected to opening control device, baroceptor is provided in cavity, opening control device can control the capacity of cavity exhaust outlet according to the testing result of baroceptor.It realizes constant force polishing, improves the polishing process of workpiece, structure is simple, and control process simplifies.Invention additionally discloses a kind of burnishing machines including above-mentioned constant pressure burnishing device.
Description
Technical field
The present invention relates to machining tool fields, more particularly to a kind of constant pressure burnishing device of burnishing machine.In addition, this hair
It is bright to further relate to a kind of burnishing machine including above-mentioned constant pressure burnishing device.
Background technique
Currently, various optical systems all play irreplaceable role in the fields such as military, civilian, and the weight to become increasingly conspicuous
It acts on so that optical system is also higher and higher to the required precision of optical element.In Ultra-precision Turning field, polished workpiece
It is placed in rotary shaft, cup polishing is contacted with workpiece, and rotary shaft drives workpiece rotation to be polished, therefore between workpiece and cup polishing
The whether constant optical property that can be seriously affected after workpiece polishing of pressure.
In traditional optical element processing, surface polishing mainly is completed by the mode of manual operation polissoir
, can not only make cost increase in this way, production efficiency it is slack-off, it is often more important that machining accuracy not can guarantee, mainly due to
When artificial progress polishing operation, the pressure that cannot keep between cup polishing and machine component is constant, leads to the surface for polishing workpiece
Polishing is inconsistent, is easy to appear waste product.Or by control system set an initial constant force, allow control system start along
This initial constant force is processed, in process, by control system real-time detection polishing force, by with initial constant force value
Comparison obtain compensation rate, change the moving direction and amount of movement of robot, while passing through control system and changing speed, realize and throw
The pressure and linear velocity constant of photoreduction process.
But aforesaid way, so that device structure is complicated, is controlled cumbersome by increasing pressure compensation mechanical mechanism.Tradition
The processing method of manual operation equipment has the polishing problem that precision can not ensure, rejection rate is big.
Therefore, how to provide the constant pressure burnishing device that a kind of energy structure is simple and control is easy is those skilled in the art's mesh
The preceding technical issues that need to address.
Summary of the invention
The object of the present invention is to provide a kind of constant pressure burnishing devices of burnishing machine, are adjusted and are vented by opening control device
Amount, the real-time automatic compensation of contact pressure is realized by the changing rule of air pressure, to realize the effect of constant force polishing, is improved and is thrown
Light efficiency.It is a further object of the present invention to provide a kind of burnishing machines including above-mentioned constant pressure burnishing device.
In order to solve the above technical problems, the present invention provides a kind of constant pressure burnishing device of burnishing machine, including it is vertically arranged
Guide rail, be movably installed in the sliding block of the guide rail and the buff spindle for being fixedly connected with the sliding block, the sliding block lower end surface setting
Have the piston hole extended straight up, further include be vertically arranged and with the relatively-stationary support rod of the guide rail, the support rod
Upper end it is horizontally disposed have piston platform, the piston platform protrudes into the piston hole to form closed cavity, the sliding block
It can be moved along the guide rail to change the volume of the cavity, the air inlet of the cavity is connected to gas source, the row of the cavity
Port is connected to opening control device, is provided with baroceptor in the cavity, the opening control device can be according to described
The testing result of baroceptor controls the capacity of the cavity exhaust outlet.
Preferably, it is provided in the middle part of the sliding block and is set in the matched vertical through-hole of the rail shapes, the through-hole
The guide rail, the piston hole are specially the annular groove for surrounding the through-hole setting, and Open Side Down for the annular groove, the work
Filling in platform is specially to be arranged with the matched annular slab of the annular groove shape, multiple support rods around the guide rail.
Preferably, the sliding block is specially rectangular parallelepiped sliders, including the four side settings of the correspondence rectangular parallelepiped sliders
Four support rods.
Preferably, the baroceptor is installed on the piston platform upper surface.
Preferably, four baroceptors including being respectively arranged above four support rods.
Preferably, the air inlet of the cavity is connected to the gas source by air inlet pipe, and the exhaust outlet of the cavity passes through row
Tracheae is connected to the opening control device.
It preferably, further include bracket for connecting burnishing machine, the lower end of the lower end of the guide rail and the support rod
It is fixedly connected with the bottom plate of the bracket, the upper end of the guide rail is fixedly connected with the top plate of the bracket.
Preferably, the opening control device includes degree adjustment valve, servo motor and controller, the degree adjustment valve
It is connected to the exhaust outlet of the cavity, the controller controls the servo motor work according to the testing result of the baroceptor
Make, the aperture of the degree adjustment valve is adjusted by the servo motor.
The present invention provides a kind of burnishing machine, including constant pressure burnishing device, and the constant pressure burnishing device is specially above-mentioned
Constant pressure burnishing device described in meaning one.
Preferably, the burnishing machine is specially optical surface eyeglass precision five-axis burnishing machine.
The present invention provides a kind of constant pressure burnishing device of burnishing machine, including be vertically arranged guide rail, be movably installed in and lead
The sliding block of rail and the buff spindle for being fixedly connected with sliding block, sliding block lower end surface are provided with the piston hole extended straight up, further include erecting
Straight setting and with the relatively-stationary support rod of guide rail, the upper end of support rod is horizontally disposed piston platform, and piston platform protrudes into work
Consent is to form closed cavity, and sliding block can be moved along guide rail to change the volume of cavity, and the air inlet of cavity is connected to gas source,
The exhaust outlet of cavity is connected to opening control device, is provided with baroceptor in cavity, opening control device can be according to air pressure
The capacity of the testing result control cavity exhaust outlet of sensor.
When the pressure that buff spindle contacts generation with workpiece when work changes, sliding block is moved up and down, and becomes cavity volume
Change, and then cavity internal pressure is caused to change, while pressure change is detected by baroceptor, opening control device is according to detection
As a result adjust capacity, make the intracorporal pressure remained steady of chamber, by the changing rule of air pressure realize contact pressure in real time from
Dynamic compensation, to realize constant force polishing, improves the polishing process of workpiece, and structure is simple, and control process simplifies, and reduces complexity
Influence of the structure for polishing, avoiding the polishing of workpiece brought by traditional artificial operation polissoir, precision is low, rejection rate is big
The problem of.
The present invention also provides a kind of burnishing machines including above-mentioned constant pressure burnishing device, since above-mentioned constant pressure burnishing device has
There is above-mentioned technical effect, above-mentioned burnishing machine should also have same technical effect, no longer be discussed in detail herein.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of specific embodiment of constant pressure burnishing device provided by the present invention；
Fig. 2 is a kind of diagrammatic cross-section of specific embodiment of constant pressure burnishing device provided by the present invention；
Fig. 3 is a kind of scheme of installation of specific embodiment of constant pressure burnishing device provided by the present invention.
Specific embodiment
Core of the invention is to provide a kind of constant pressure burnishing device of burnishing machine, is adjusted and is vented by opening control device
Amount, the real-time automatic compensation of contact pressure is realized by the changing rule of air pressure, to realize the effect of constant force polishing, is improved and is thrown
Light efficiency.Another core of the invention is to provide a kind of burnishing machine including above-mentioned constant pressure burnishing device.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is a kind of knot of specific embodiment of constant pressure burnishing device provided by the present invention
Structure schematic diagram；Fig. 2 is a kind of diagrammatic cross-section of specific embodiment of constant pressure burnishing device provided by the present invention；Fig. 3 is
A kind of scheme of installation of specific embodiment of constant pressure burnishing device provided by the present invention.
The specific embodiment of the invention provides a kind of constant pressure burnishing device of burnishing machine, including guide rail 1, sliding block 2, polishing
Axis 3 and support rod 4, guide rail 1 and support rod 4 are vertically arranged, and the two is relatively fixed, and the upper end of support rod 4 is lower than guide rail 1
Upper end is equipped with sliding block 2 on guide rail 1, and sliding block 2 can be moved along the extending direction of guide rail 1.The lower end surface of sliding block 2 is provided with work
Consent, piston hole are vertically arranged, and lower end is opening, and positioned at the lower end surface of sliding block 2, upper end closed is located inside sliding block 2.Support
The upper end of bar 4 is provided with horizontal piston platform 5, and piston platform 5 protrudes into piston hole to form closed cavity 6, and sliding block 2 is along leading
During rail 1 is mobile, relative displacement also occurs simultaneously for piston platform 5 and piston hole, and then changes the volume of cavity 6.Chamber
Body 6 has air inlet and exhaust outlet, i.e., there are two openings, the air inlet of cavity 6 to be connected to gas source 7, use for the upper end setting of piston hole
In guaranteeing that air inflow is stable, the exhaust outlet of cavity 6 is connected to opening control device, is provided with baroceptor 8, aperture in cavity 6
Control device can control the capacity of 6 exhaust outlet of cavity according to the testing result of baroceptor 8.
Relationship based on Preston equation building removal amount dh and residence time dT is dh=KpPcVsDT, wherein KpTo go
Except coefficient, and contact pressure P is removedcWith speed VsProcessing factors in addition are related, PcFor contact pressure, VsFor constant speed, dT is
The constant residence time of rubbing head is determined by experiment ideal removal COEFFICIENT Kp, building residence time dT and feed rate F's
Relationship is dT=Kt/ F, wherein Kt is constant, can obtain contact pressure PcWith the relationship dh=K of feed rate FpPcVs Kt/ F, in formula
KpAnd VsIt is definite value.At this point, if control feed rate F is certain, when setting removal amount dh as constant, then contact pressure PcFor
Certain value.
Processing start before, open gas source 7, into cavity 6 provide stablize air pressure, while reduce throwing exhaust aperture, at this time into
Tolerance is greater than capacity, and sliding block 2 is made to rise to object height under gas pressure；Increase exhaust aperture again, is equal to air inflow
Capacity, sliding block 2 is stablized in object height at this time, then can clamping workpiece.
Start the process segment, each axis is moved according to location parameter ordered series of numbers.Slowly increase exhaust aperture, keeps air inflow small
In capacity, sliding block 2 declines, until 3 contact workpiece surface of buff spindle, while by baroceptor 8, adjustment exhaust is calculated in real time
Aperture, makes in cavity 6 stable gas pressure in required target value, and it is workpiece that wherein buff spindle 3, which applies stressed reaction force to workpiece,
The pressure of gas in cavity 6 is subtracted to the gravity that the support force of buff spindle 3 is equal to the movable parts such as sliding block 2.
When fluctuating situation occurs in workpiece surface, the fluctuating of buff spindle 3 causes 6 volume of cavity the trend changed occur, into
And air pressure changes in cavity 6, on the basis of the Real-time Monitoring Data of baroceptor 8, passes through the linkage to exhaust aperture
Adjustment makes air pressure Quick-return in cavity 6 to original state, and then stablizes pressure Quick-return in cavity 6, that is, realizes and throw
Optical axis 3 workpiece is applied it is stressed constant so that polishing process keeps constant force, until process finishing.
The relationship of unit time removal amount and contact pressure is constructed based on Preston equation, protects the pressure in cavity 6
It is fixed to keep steady, and realizes that the real-time automatic compensation of contact pressure improves work to realize constant force polishing by the changing rule of air pressure
The polishing process of part, structure is simple, and control process simplifies, and reduces influence of the labyrinth for polishing, avoids traditional people
Work operates the polishing of workpiece brought by the polissoir problem that precision is low, rejection rate is big.Guarantee in the constant situation of polish pressure, also
It can be achieved during the polishing process, brought error compensates when wearing to buff spindle 3.
In the constant pressure burnishing device that the specific embodiment of the invention provides, sliding block 2 can be taken various forms, such as in
Portion's setting and the matched vertical through-hole of 1 shape of guide rail, through-hole are set in guide rail 1, dig the ring around through-hole in 2 lower end surface of sliding block
Shape slot is as piston hole, and Open Side Down for annular groove, at the same piston platform 5 be specially with the matched annular slab of annular groove shape,
Multiple support rods 4 are arranged around guide rail 1, support annular slab jointly.It may also set up multiple split type piston holes, be correspondingly arranged more
A support rod 4 and multiple piston platforms 5, it is within the scope of the present invention.
The cross section of guide rail 1 can be various shapes, if cross section be rectangle, accordingly, 2 middle through-hole of sliding block it is transversal
Face also uses rectangle, sliding block 2 or rectangular parallelepiped sliders, and the bottom surface of sliding block 2 is in " returning " font, and four branch can be set
Strut 4, the four side settings of corresponding rectangular parallelepiped sliders.Further, baroceptor 8 is installed on 5 upper surface of piston platform.If
Four baroceptors 8 are set, four support rods, 4 top is respectively arranged at.Or the quantity for needing to adjust each component according to circumstances
And arrangement, it is within the scope of the present invention.
In the constant pressure burnishing device that the specific embodiment of the invention provides, the air inlet of cavity 6 is connected to by air inlet pipe 9
The exhaust outlet of gas source 7, cavity 6 is connected to opening control device by exhaust pipe 10.It further include the bracket for connecting burnishing machine
11, the lower end of guide rail 1 is fixedly connected with the bottom plate of bracket 11 with the lower end of support rod 4, and the upper end of guide rail 1 is fixedly connected with bracket 11
Top plate.
On the basis of the constant pressure burnishing device that above-mentioned each specific embodiment provides, opening control device includes aperture tune
Valve 12, servo motor 13 and controller are saved, degree adjustment valve 12 is connected to the exhaust outlet of cavity 6, and controller communicates to connect air pressure transmission
Sensor 8 and servo motor 13, controller control servo motor 13 according to the testing result of baroceptor 8 and work, and pass through servo
The rotation of motor 13 adjusts the aperture of degree adjustment valve 12, and then realizes the adjusting of exhaust aperture.Other kinds of open can also be used
Control device, such as electromagnetic valve mechanism are spent, it is within the scope of the present invention.
In addition to above-mentioned constant pressure burnishing device, it includes above-mentioned constant pressure polishing dress that a specific embodiment of the invention, which also provides a kind of,
The burnishing machine set, refer to the prior art for the structure of other each sections of the burnishing machine, and repeats no more herein.
Specifically, above-mentioned burnishing machine can be optical surface eyeglass precision five-axis burnishing machine.
Burnishing machine provided by the present invention and its constant pressure burnishing device are described in detail above.It is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand
Method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from this
, can be with several improvements and modifications are made to the present invention under the premise of inventive principle, these improvement and modification also fall into the present invention
In scope of protection of the claims.
Claims (10)
1. a kind of constant pressure burnishing device of burnishing machine, which is characterized in that including be vertically arranged guide rail (1), be movably installed in
The sliding block (2) of the guide rail (1) and the buff spindle (3) for being fixedly connected with the sliding block (2), sliding block (2) lower end surface are provided with
The piston hole extended straight up, further include be vertically arranged and with the guide rail (1) relatively-stationary support rod (4), the branch
The upper end of strut (4) is horizontally disposed to be had piston platform (5), and it is closed to be formed that the piston platform (5) protrudes into the piston hole
Cavity (6), the sliding block (2) can change the volume of the cavity (6) along the guide rail (1) movement, the cavity (6)
Air inlet is connected to gas source (7), and the exhaust outlet of the cavity (6) is connected to opening control device, is provided with air pressure in the cavity (6)
Sensor (8), the opening control device can control the cavity (6) according to the testing result of the baroceptor (8)
The capacity of exhaust outlet.
2. constant pressure burnishing device according to claim 1, which is characterized in that be provided in the middle part of the sliding block (2) with it is described
The matched vertical through-hole of guide rail (1) shape, the through-hole are set in the guide rail (1), and the piston hole specially surrounds described
The annular groove of through-hole setting, Open Side Down for the annular groove, and the piston platform (5) is specially and the annular groove shape
The annular slab matched, multiple support rods (4) are arranged around the guide rail (1).
3. constant pressure burnishing device according to claim 2, which is characterized in that the sliding block (2) is specially rectangular parallelepiped sliders,
Four support rods (4) including correspondence four sides of rectangular parallelepiped sliders setting.
4. constant pressure burnishing device according to claim 3, which is characterized in that the baroceptor (8) is installed on described
Piston platform (5) upper surface.
5. constant pressure burnishing device according to claim 4, which is characterized in that including being respectively arranged at four support rods
(4) four baroceptors (8) above.
6. constant pressure burnishing device according to claim 1, which is characterized in that the air inlet of the cavity (6) passes through air inlet
It manages (9) and is connected to the gas source (7), the exhaust outlet of the cavity (6) is connected to the opening control device by exhaust pipe (10).
7. constant pressure burnishing device according to claim 1, which is characterized in that further include the bracket for connecting burnishing machine
(11), the lower end of the guide rail (1) is fixedly connected with the bottom plate of the bracket (11) with the lower end of the support rod (4), described to lead
The upper end of rail (1) is fixedly connected with the top plate of the bracket (11).
8. according to claim 1 to constant pressure burnishing device described in 7 any one, it is characterized in that, aperture control dress
It sets including degree adjustment valve (12), servo motor (13) and controller, the degree adjustment valve (12) is connected to the cavity (6)
Exhaust outlet, the controller control the servo motor (13) according to the testing result of the baroceptor (8) and work, pass through
The servo motor (13) adjusts the aperture of the degree adjustment valve (12).
9. a kind of burnishing machine, which is characterized in that including constant pressure burnishing device, the constant pressure burnishing device is specially claim
Constant pressure burnishing device described in 1 to 8 any one.
10. burnishing machine according to claim 9, which is characterized in that the burnishing machine is specially optical surface eyeglass
Precision five-axis burnishing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435595.8A CN109434683A (en) | 2018-11-28 | 2018-11-28 | Burnishing machine and its constant pressure burnishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435595.8A CN109434683A (en) | 2018-11-28 | 2018-11-28 | Burnishing machine and its constant pressure burnishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109434683A true CN109434683A (en) | 2019-03-08 |
Family
ID=65555929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811435595.8A Pending CN109434683A (en) | 2018-11-28 | 2018-11-28 | Burnishing machine and its constant pressure burnishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109434683A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548764A (en) * | 2021-03-01 | 2021-03-26 | 湖南工匠实创智能机器有限责任公司 | Constant pressure control method of air pressure loading type polishing device |
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| DE446309C (en) * | 1925-12-03 | 1927-06-27 | Dionys Hofmann | Equipment for balancing devices, in particular grinding wheels on their shafts |
| CN203254273U (en) * | 2013-05-18 | 2013-10-30 | 徐州市龙泰煤矿设备制造厂 | Automatic steel plate grinding head structure |
| CN204686629U (en) * | 2015-06-02 | 2015-10-07 | 福建省天大精诺信息有限公司 | A kind of based on pressure controlled polishing machine |
| CN107378777A (en) * | 2017-08-31 | 2017-11-24 | 黄进 | A kind of simple type constant pressure power apparatus |
| CN107498467A (en) * | 2017-09-11 | 2017-12-22 | 南宁宇立仪器有限公司 | A kind of constant force floating system |
| CN108581716A (en) * | 2018-05-16 | 2018-09-28 | 广东工业大学 | A kind of constant pressure polishing method and device for optical element |
-
2018
- 2018-11-28 CN CN201811435595.8A patent/CN109434683A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE446309C (en) * | 1925-12-03 | 1927-06-27 | Dionys Hofmann | Equipment for balancing devices, in particular grinding wheels on their shafts |
| CN203254273U (en) * | 2013-05-18 | 2013-10-30 | 徐州市龙泰煤矿设备制造厂 | Automatic steel plate grinding head structure |
| CN204686629U (en) * | 2015-06-02 | 2015-10-07 | 福建省天大精诺信息有限公司 | A kind of based on pressure controlled polishing machine |
| CN107378777A (en) * | 2017-08-31 | 2017-11-24 | 黄进 | A kind of simple type constant pressure power apparatus |
| CN107498467A (en) * | 2017-09-11 | 2017-12-22 | 南宁宇立仪器有限公司 | A kind of constant force floating system |
| CN108581716A (en) * | 2018-05-16 | 2018-09-28 | 广东工业大学 | A kind of constant pressure polishing method and device for optical element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548764A (en) * | 2021-03-01 | 2021-03-26 | 湖南工匠实创智能机器有限责任公司 | Constant pressure control method of air pressure loading type polishing device |
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Application publication date: 20190308 |