CN103203688B - Micro-scale grinding online electrolytic dressing device and method thereof - Google Patents
Micro-scale grinding online electrolytic dressing device and method thereof Download PDFInfo
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- CN103203688B CN103203688B CN201310076601.6A CN201310076601A CN103203688B CN 103203688 B CN103203688 B CN 103203688B CN 201310076601 A CN201310076601 A CN 201310076601A CN 103203688 B CN103203688 B CN 103203688B
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Abstract
The invention discloses a micro-scale grinding online electrolytic dressing device which comprises a pulse power supply, a laser micrometer dial, a grinding wheel, a computer, a numerical control system, a three-dimensional numerical control platform and a rotating electrode. The laser micrometer dial in the electrolytic dressing device measures the rotation accuracy of the grinding wheel in an online manner and transmits the measured rotation accuracy of the grinding wheel to the computer, the rotation accuracy of the grinding wheel is processed and analyzed by the computer to obtain a rotation error of the grinding wheel, the rotation error is transmitted into the numerical control system to perform interpolation operation, an interpolation operation result is used for controlling the three-dimensional numerical control platform to drive the rotating electrode to move in an interpolating manner along an axial profile of the grinding wheel, the grinding wheel vertically and slowly feeds downwards, so that pulse sparks are continuously generated between the rotating electrode and metal bond of the grinding wheel, and the grinding wheel is dressed by discharging. The micro-scale grinding online electrolytic dressing device can automatically adjust the position of the rotating electrode to realize micro-scale online electrolytic dressing, and has the advantages of high efficiency, automation, simplicity and convenience in operation and the like.
Description
Technical field
The present invention relates to the crushing technical applications of minute yardstick grinding, refer in particular to and be applicable to a kind of minute yardstick grinding on-line purification devices and methods therefor adopting the skive of minute yardstick grinding metallic bond.
Background technology
Along with the progress of science and technology, high accuracy, the minute yardstick product of the hard brittle materials such as various engineering ceramics, quartz, glass have increasing demand in many fields (comprising Aero-Space, national defence, biology, MEMS etc.).This slightly product mainly refer to minute sized part and possess the product of small size characteristic, comprise various small driver, sensor, biomedical device, semiconductor chip etc.These products have become the core component of its application, play huge effect.
The processing of hard brittle material is more much more difficult than general material, and grinding is widely used in the processing of hard crisp ceramic material as the most efficient manufacturing process.At present, micro-method for grinding is applied to obtain the micro-part feature of high accuracy and surface quality has achieved many achievements.Morgan etc. carry out micro-grinding to carbide alloy, and obtain the piece surface of Ra=5.1nm, prove that micro-method for grinding has significant effect for the micro-part of raising especially crisp and hard material.Minute yardstick method for grinding mainly refers to that the miniature frotton using diameter to be less than 1mm directly carries out machinery removal to material and processes and form required pattern, is at present as the high accuracy of micro-part and micro-structured component realizing hard brittle material and the important implementation method of great surface quality.In minute yardstick grinding process, the surface microfeatures shape of micro-structural seriously can restrict the geometric shape size of skive, therefore emery wheel has small contour structure usually, emery wheel is caused to be easy to wear and tear in grinding process, the finishing of such emery wheel seems very important, and in prior art, precise dressing emery wheel needs manually on grinding machine, to pull down emery wheel, repair in other places, grinding machine is installed again after having rebuild, this method is bothersome requires great effort again, is difficult to the precise dressing being used in hard brittle material grinding skive.
Summary of the invention
Goal of the invention: the object of the invention is to solve the deficiencies in the prior art, provides one one-time positioning can realize the two-sided processing of workpiece, and exempts the double end copy milling of upset workpiece step.
Technical scheme: in order to realize above object, a kind of minute yardstick grinding on-line purification device of the present invention, comprising: the pulse power, laser micrometer, emery wheel, computer, digital control system, three-dimension numerical controlled platform and rotation electrode; Described pulse power negative pole connects laser micrometer, and positive pole connects described rotation electrode; Described laser micrometer is positioned at above emery wheel; Described laser micrometer is connected with computer, and computer is connected with digital control system, and digital control system is connected with three-dimension numerical controlled platform, and three-dimension numerical controlled platform is connected with rotation electrode.
Three-dimension numerical controlled platform described in the present invention is provided with the grating that precision is 1um, adopts grating to improve the precision of three-dimension numerical controlled platform.
Rotation electrode described in the present invention preferably adopts red copper to make.
Emery wheel described in the present invention is skive.
The invention also discloses a kind of minute yardstick grinding on-line purification method, the concrete steps of the method are as follows: adopt above-mentioned minute yardstick grinding on-line purification device, the rotating accuracy of the described laser micrometer on-line measurement emery wheel in this device, and the rotating accuracy of the emery wheel of measurement is passed to computer, the rotating accuracy of computer to emery wheel processes and analyzes, draw the turn error of emery wheel, then turn error is sent into digital control system and carry out interpolation operation, moving interpolation is done along the axial profile of emery wheel by the output control of interpolation operation three-dimension numerical controlled platform driven rotary electrode, emery wheel slowly feeds vertically downward simultaneously, constantly make to produce Pulse Electric spark between rotation electrode and the metallic bond of emery wheel, trimming wheel is carried out by electric discharge.The method of the invention is in dressing process, gap between wheel face and rotation electrode constantly changes with the rotation of emery wheel, and pulsed discharge spark only understands minimum place, the gap bonding agent of ablation emery wheel and electrode, therefore along with processing continue carry out, the bias that emery wheel is installed and wearing and tearing produce and meeting of beating constantly reduce, finally reach the object of the accurate correction of the flank shape of emery wheel and dressing, and by changing digital controlled tracing, just can realize the finishing of difformity emery wheel.
Beneficial effect: the present invention compared with prior art has the following advantages:
1, the present invention utilizes electrolysis tech, achieves the finishing to emery wheel from minute yardstick, overcomes conventional method and is difficult to be used in the deficiency in the precise dressing difficulty of hard brittle material abrasive grinding wheel, particularly for skive.
2, utilize the three-dimension numerical controlled platform of computer-controlled precision in the present invention, easily and accurately rotation electrode can be moved to the position required for crushing, simply, accurately, fast.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Embodiment
A kind of minute yardstick grinding on-line purification device as shown in Figure 1, comprising: the pulse power 1, laser micrometer 2, emery wheel 3, computer 4, digital control system 5, three-dimension numerical controlled platform 6 and rotation electrode 7.
The annexation of above-mentioned each parts is as follows: the described pulse power 1 negative pole connects laser micrometer 2, and positive pole connects described rotation electrode 7; Described laser micrometer 2 is positioned at above emery wheel 3; Described laser micrometer 2 is connected with computer 4, and computer 4 is connected with digital control system 5, and digital control system 5 is connected with three-dimension numerical controlled platform 6, and three-dimension numerical controlled platform 6 is connected with rotation electrode 7.
Adopt the process of the trimming wheel of described minute yardstick grinding on-line purification device as follows: the rotating accuracy of the first on-line measurement emery wheel 3 of the described laser micrometer 2 in this device, and the rotating accuracy of the emery wheel of measurement is passed to computer 4, the rotating accuracy of computer 4 pairs of emery wheels processes and analyzes, draw the turn error of emery wheel 3, then turn error is sent into digital control system 5 and carry out interpolation operation, moving interpolation is done along the axial profile of emery wheel 3 by the output control of interpolation operation three-dimension numerical controlled platform 6 driven rotary electrode 7, emery wheel 3 slowly feeds vertically downward simultaneously, constantly make to produce Pulse Electric spark between the metallic bond of rotation electrode 7 and emery wheel 3, trimming wheel is carried out by electric discharge.
Claims (1)
1. a minute yardstick grinding on-line purification method, it is characterized in that, have employed minute yardstick grinding on-line purification device in the method, this device comprises: the pulse power (1), laser micrometer (2), emery wheel (3), computer (4), digital control system (5), three-dimension numerical controlled platform (6) and rotation electrode (7); The described pulse power (1) negative pole connects laser micrometer (2), and positive pole connects described rotation electrode (7); Described laser micrometer (2) is positioned at emery wheel (3) top; Described laser micrometer (2) is connected with computer (4), and computer (4) is connected with digital control system (5), and digital control system (5) is connected with three-dimension numerical controlled platform (6), and three-dimension numerical controlled platform (6) is connected with rotation electrode (7); Described three-dimension numerical controlled platform (6) is provided with the grating that precision is 1um; Described rotation electrode (7) adopts red copper to make;
The concrete steps of described minute yardstick grinding on-line purification method are as follows:
Adopt described minute yardstick grinding on-line purification device, the rotating accuracy of described laser micrometer (2) the on-line measurement emery wheel (3) in this device, and the rotating accuracy of the emery wheel of measurement is passed to computer (4), computer (4) rotating accuracy to emery wheel processes and analyzes, draw the turn error of emery wheel (3), then turn error is sent into digital control system (5) and carry out interpolation operation, moving interpolation is done along the axial profile of emery wheel (3) by the three-dimension numerical controlled platform of the output control of interpolation operation (6) driven rotary electrode (7), emery wheel (3) slowly feeds vertically downward simultaneously, constantly make to produce Pulse Electric spark between the metallic bond of rotation electrode (7) and emery wheel (3), trimming wheel is carried out by electric discharge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310076601.6A CN103203688B (en) | 2013-03-12 | 2013-03-12 | Micro-scale grinding online electrolytic dressing device and method thereof |
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| CN201310076601.6A CN103203688B (en) | 2013-03-12 | 2013-03-12 | Micro-scale grinding online electrolytic dressing device and method thereof |
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| CN103203688A CN103203688A (en) | 2013-07-17 |
| CN103203688B true CN103203688B (en) | 2015-06-10 |
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Families Citing this family (8)
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| CN103624684A (en) * | 2013-12-05 | 2014-03-12 | 湖南大学 | Electrospark trimming device for metal binding agent superabrasive formed grinding wheel for sawtooth processing |
| CN103802026A (en) * | 2014-03-12 | 2014-05-21 | 哈尔滨工业大学 | In-place discharge precise dressing unit for formed metal-based diamond grinding wheel |
| CN104742002B (en) * | 2015-03-19 | 2017-03-08 | 华南理工大学 | A kind of intelligent grinding attachment of short pulse electric smelting chip removal cooling |
| CN107030343B (en) * | 2017-06-09 | 2019-01-25 | 常州工学院 | Bulb composite cathode restoring on line device and its application method |
| CN108161148A (en) * | 2018-01-30 | 2018-06-15 | 深圳大学 | The electric discharge finishing apparatus in place and method of a kind of milling head |
| CN108818310B (en) * | 2018-06-22 | 2020-05-22 | 华南理工大学 | Online accurate control method for micro-scale abrasive particle leveling parameters |
| CN108838889B (en) * | 2018-06-25 | 2023-06-30 | 广东工贸职业技术学院 | Hard and brittle free-form surface grinding device and grinding method |
| CN113021190A (en) * | 2021-03-15 | 2021-06-25 | 哈尔滨理工大学 | Arc-shaped grinding wheel electric spark dressing device for metal binder |
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