CN202240797U - Five-axis polishing machine - Google Patents
Five-axis polishing machine Download PDFInfo
- Publication number
- CN202240797U CN202240797U CN2011203734526U CN201120373452U CN202240797U CN 202240797 U CN202240797 U CN 202240797U CN 2011203734526 U CN2011203734526 U CN 2011203734526U CN 201120373452 U CN201120373452 U CN 201120373452U CN 202240797 U CN202240797 U CN 202240797U
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- polishing
- rubbing head
- cylinder
- pressure control
- mainframe
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Abstract
The utility model discloses a five-axis polishing machine, which comprises a main frame and a numerical control portion in five-axis linkage. A polishing spindle with a polishing clamp is mounted on the main frame, a polishing head is mounted on the polishing clamp, the polishing spindle is provided with a hollow inner cavity and a pneumatic pressure control device, and the pneumatic pressure control device comprises a pneumatic pressure control servo motor, a spiral rolling bar, a piston, a cylinder and a pressure film which are sequentially mounted in the hollow inner cavity of the polishing spindle, wherein the spiral rolling bar is connected with an output shaft of the servo motor through a spherical nut, the piston is connected with the spiral rolling bar, the cylinder is connected with an external air compression station through a control air valve, and the pressure film is mounted at one end of the cylinder and connected with the polishing head. The five-axis polishing machine is capable of rapidly polishing optical surfaces of an aspheric surface and a free-form surface, shape errors of a lens are corrected so that precision of a product is improved, and machining time is shortened while machining efficiency is greatly improved.
Description
Technical field
The utility model relates to a kind of polishing machine, is specifically related to a kind of five polishing machines.
Background technology
At present, along with the raising that Performance of Optical System is required, also increasingly high to the required precision of aspherical optical element.After aspherical optical element machine-shaping, also to grind and polish to guarantee precision.
In the existing polishing technology, the method that is used as aspheric surface polishing has a lot, comprises electrobrightening, fluid polishing, chemical polishing, ultrasonic polishing and magnetic polishing light etc.Electrobrightening is to lean on the optionally small projection in dissolved material surface, makes smooth surface.Fluid polishing is to rely on swiftly flowing liquid and the abrasive particle that carries washes away surface of the work to reach the purpose of polishing, and common have abrasive jet processing, fluid spray processing, fluid dynamic grinding etc.Chemical polishing is that workpiece is put into chemical mediator, the recessed part optimum solvation of part that lets the workpiece material surface microscopic protrude, thus obtain level and smooth surface.Ultrasonic polishing is that workpiece is put into abrasive suspension and placed ultrasound field together, relies on hyperacoustic oscillation action, makes abrasive material at the surface of the work grinding-polishing.Magnetic polishing light then is to utilize magnetic abrasive under the effect of magnetic field, to form abrasive brush, to the workpiece grinding.
Processing for aspherical optical element can be described as mirror finish, and surface smoothness, smoothness and geometric accuracy are had very high requirement.Because methods such as electrobrightening, fluid polishing are difficult to the accurately geometric accuracy of control part, and the surface quality that methods such as chemical polishing or magnetic polishing light realize all can not reach requirement, so accurate mirror finish is main with the mode that ultra lappingout is thrown generally.
Five polishing machines are to rely on the plastic deformation of material surface to remove the projection after the polishing and obtain smooth surface, belong to a kind of of ultra lappingout throwing.Five polishing machines adopt special grinding tool, and in containing the polishing liquid of abrasive material, grinding tool is pressed on the workpiece machining surface, makes high speed rotary motion.Utilize this technology can reach very high surface accuracy, so five polishing machines are all adopted in the fine finishining of optical mirror slip (particularly aspherical lens).
The rubbing head of five polishing machines of tradition is the air pressure that is outputed to rubbing head by built-in operated pneumatic valve control.In polishing process, the pressure of rubbing head is revised according to the numerical value of the surface roughness of each part by the operator, in the polishing process of whole part, keeps this pressure.But because workpiece surface roughness generally all is uneven, polish pressure need constantly be regulated and reach required polishing effect, and this is impossible realize in five polishing machines of tradition.
Summary of the invention
To the deficiency of prior art, the utility model provides a kind of five polishing machines that come the controlled pressure dynamic change with pneumatic means.
For realizing above-mentioned purpose; The utility model provides a kind of five polishing machines; The mainframe and the numerical control part that comprise five-axle linkage; The buff spindle that has polishing clamp is installed on the mainframe, and rubbing head is installed on the rubbing head anchor clamps, and buff spindle has the inner chamber of hollow; Also have the Pneumatic pressure control device, comprise the air pressure control servomotor that is installed in successively on the rubbing head main shaft hollow cavity, with the output shaft of servomotor between link to each other through spherical nut spiral scroll bar, the piston that links to each other with the spiral scroll bar, with outside air compression station through the control air valve cylinder that links to each other, the pressure film that is installed in cylinder one end and links to each other with said rubbing head.
The utility model can further be set to the rotary decoder installed near the spiral scroll bar on the output shaft that said Pneumatic pressure control device also is included in air pressure control servomotor.
The utility model also can further be set on the said mainframe antihunting device is installed.
The utility model also can further be set to said mainframe and comprise a platform and support, and said antihunting device is the magnetic bump leveller that is installed between a platform and the support.
The beneficial effect of the utility model is: adopt said structure; Five polishing machines that the utility model provided can carry out fast polishing to the optical surface of aspheric surface and free form surface; Revise the lens shape error to improve the accuracy of product, shorten process time and improve working (machining) efficiency greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of Pneumatic pressure control device in the utility model;
Fig. 4 is the sketch map of aspheric surface measurement system.
The specific embodiment
As depicted in figs. 1 and 2, five polishing machines mainly comprise the mainframe and the numerical control part of five-axle linkage.Mainframe comprises the support 15 that is fixed on ground; Be installed in the horizontal bed platform 11 on the support 15; Being installed in also can be with respect to the crossbeam 12 of bed platform along the slip of Y direction on the platform 11; Being installed in also can be with respect to the column 13 of crossbeam 12 along the Z-direction slip, the cantilever 14 that stretches out on the column 13 on the crossbeam 12.The buff spindle 8 of band rubbing head 18 is installed at the front end of cantilever 14.Servomotor l, 2,3 is installed in respectively on a platform 11, crossbeam 12 and the column 13, partly controls drive crossbeam 12, column 13 and cantilever 14 by numerical control and moves along X, Y, Z axle respectively.Servomotor 4 also is installed on cantilever 14, is used to drive buff spindle 8 and moves around the A axle.Alternating current generator 10 also is installed on the cantilever 14, is used to control the rotational velocity of buff spindle 8.
Stationary table comprises being used to place the revolving dial 6 of workpiece 7 and can driving the motor 9 that platform 6 rotates around the B axle on bed platform 11.
Can know that by last description these five polishing machines can be realized along the rectilinear motion of X, Y, Z with along the rotation of A, B axle, promptly so-called five-axle linkage.Five-axle linkage system is common known configurations in Digit Control Machine Tool, and its concrete characteristic, controlling organization and operation principle are repeated no more.
The front end of rubbing head main shaft 8 has rubbing head anchor clamps 19, and rubbing head 18 is installed on the rubbing head anchor clamps 19.Inner chamber at rubbing head main shaft 8 is a hollow, and Pneumatic pressure control device 5 is installed, and its detailed structure is as shown in Figure 3.Pneumatic pressure control device 5 comprises: be installed in successively air pressure control servomotor 51 on the rubbing head main shaft hollow cavity, with the output shaft of servomotor 51 between spiral scroll bar 54, the piston 55 that links to each other with spiral scroll bar 54, the cylinder 56, the pressure film 58 that is installed in cylinder 56 1 ends that link to each other through spherical nut 53.In the course of the work; The required compressed air of Pneumatic pressure control device 5 is by the air compression station supply of outside; The compressed air of air compression station output is usually above the required pressure of device, and pressure oscillation is bigger, need reduce pressure and keeps supply gas pressure to stablize through control air valves such as pressure-reducing valves.Cylinder 56 links to each other with outside air compression station.The compressed air of supply is transported to cylinder 56 behind the control air valve.Numerical control part is confirmed decrement or the expansion amount that cylinder 56 is required according to required operating pressure, drives air pressure control servomotor 51 forward or reverse.The rotation of servomotor 51 is converted into along the rectilinear motion of rubbing head main-shaft axis through spiral scroll bar 54, and promotion piston 55 advances or retreats, thereby compression or expansion cylinder 56 make the air in the cylinder reach required pressure.This pressure is delivered to the pressure film 58 that is installed in cylinder 56 1 ends.Rubbing head 18 links to each other with pressure film 58, and pressure film 58 is compressed the active force of gas and produces distortion, and this distortion passes to rubbing head 18 and makes it produce the corresponding amount of feeding, thereby accomplishes non-ball and the revisal of eyeglass polishing.
As shown in Figure 3; On the output shaft of air pressure control servomotor 51, rotary decoder 52 is installed near spiral scroll bar 54; Can compensate the site error of spiral scroll bar through obtaining the feedback position of spiral scroll bar 54, improve the stability and the accuracy of system.Suppose to polish aspherical lens shown in Figure 4, then after this aspherical lens machine-shaping, utilize non-spherical surface profile measurement system 1 00 to detect the surface roughness and the geometry thereof of non-spherical surface.This measuring system adopts the measuring method of contact, measures with contacting of workpiece through probe.Measure each parameter of gained and the design parameter of aspherical lens and all import the numerical control part; After the contrast computing; Just can draw non-ball and the form error of eyeglass; Convert these form errors into machined parameters, partly send control signal corresponding, drive rubbing head and accomplish required revisal polishing by numerical control.
The utility model adopts the Pneumatic pressure control device to control the feeding of rubbing head, realizes stepless straight line and gyration.Because the working life of pneumatic element is generally very long, thereby can improve the reliability of system.Hold the sheeter lines mark for fear of producing because of vibration, five polishing machines can also have antihunting device.Four magnetic bump levellers for example are installed between bed platform l1 and support 15, are utilized damping to lower the influence of extraneous vibration five polishing machines.
Although described the utility model with reference to preferred embodiment; But the protection domain of the utility model is not limited to this; Those of ordinary skill in the art can carry out various improvement and deformation to the utility model under the prerequisite of spirit that does not break away from the utility model and scope.
Claims (4)
1. five polishing machines; The mainframe and the numerical control part that comprise five-axle linkage; The buff spindle that has polishing clamp is installed on the mainframe; Rubbing head is installed on the rubbing head anchor clamps; Buff spindle has the inner chamber of hollow, it is characterized in that: also have the Pneumatic pressure control device, comprise the air pressure control servomotor that is installed in successively on the rubbing head main shaft hollow cavity, with the output shaft of servomotor between link to each other through spherical nut spiral scroll bar, the piston that links to each other with the spiral scroll bar, with outside air compression station through the control air valve cylinder that links to each other, the pressure film that is installed in cylinder one end and links to each other with said rubbing head.
2. five polishing machines according to claim 1 is characterized in that: said Pneumatic pressure control device also is included in air pressure and controls the rotary decoder of installing near the spiral scroll bar on the output shaft of servomotor.
3. five polishing machines according to claim 1 and 2 is characterized in that: on the said mainframe antihunting device is installed.
4. five polishing machines according to claim 3, it is characterized in that: said mainframe comprises a platform and support, said antihunting device is the magnetic bump leveller that is installed between a platform and the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203734526U CN202240797U (en) | 2011-09-30 | 2011-09-30 | Five-axis polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203734526U CN202240797U (en) | 2011-09-30 | 2011-09-30 | Five-axis polishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202240797U true CN202240797U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203734526U Expired - Fee Related CN202240797U (en) | 2011-09-30 | 2011-09-30 | Five-axis polishing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202240797U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816112A (en) * | 2015-03-27 | 2015-08-05 | 於正华 | Five-axis linkage numerically-controlled mechanical hand welding machine |
| CN108311960A (en) * | 2018-03-21 | 2018-07-24 | 大连理工大学 | A kind of burnishing device and method of freeform optics surface |
| CN110509160A (en) * | 2019-09-02 | 2019-11-29 | 深圳市精速五金机械有限公司 | A kind of pipe fitting automation five-axle linkage polishing machine |
| CN111266933A (en) * | 2020-02-24 | 2020-06-12 | 大连理工大学 | Ultra-precision machining method and device for thin-wall hard and brittle fairing with complex shape |
| CN112536674A (en) * | 2019-09-23 | 2021-03-23 | 中国科学院国家天文台南京天文光学技术研究所 | Air bag polishing system of large-caliber special-shaped off-axis aspheric mirror and working method thereof |
| CN113618542A (en) * | 2021-07-13 | 2021-11-09 | 中国兵器科学研究院宁波分院 | Polishing equipment |
-
2011
- 2011-09-30 CN CN2011203734526U patent/CN202240797U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816112A (en) * | 2015-03-27 | 2015-08-05 | 於正华 | Five-axis linkage numerically-controlled mechanical hand welding machine |
| CN108311960A (en) * | 2018-03-21 | 2018-07-24 | 大连理工大学 | A kind of burnishing device and method of freeform optics surface |
| CN110509160A (en) * | 2019-09-02 | 2019-11-29 | 深圳市精速五金机械有限公司 | A kind of pipe fitting automation five-axle linkage polishing machine |
| CN112536674A (en) * | 2019-09-23 | 2021-03-23 | 中国科学院国家天文台南京天文光学技术研究所 | Air bag polishing system of large-caliber special-shaped off-axis aspheric mirror and working method thereof |
| CN112536674B (en) * | 2019-09-23 | 2022-07-15 | 中国科学院国家天文台南京天文光学技术研究所 | Air bag polishing system of large-caliber special-shaped off-axis aspheric mirror and working method thereof |
| CN111266933A (en) * | 2020-02-24 | 2020-06-12 | 大连理工大学 | Ultra-precision machining method and device for thin-wall hard and brittle fairing with complex shape |
| CN113618542A (en) * | 2021-07-13 | 2021-11-09 | 中国兵器科学研究院宁波分院 | Polishing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |