CN105058254A - Large-size radial ultrasonic auxiliary end face grinding abrasive disk - Google Patents
Large-size radial ultrasonic auxiliary end face grinding abrasive disk Download PDFInfo
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- CN105058254A CN105058254A CN201510492598.5A CN201510492598A CN105058254A CN 105058254 A CN105058254 A CN 105058254A CN 201510492598 A CN201510492598 A CN 201510492598A CN 105058254 A CN105058254 A CN 105058254A
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Abstract
The invention discloses a large-size radial ultrasonic auxiliary end face grinding abrasive disk. The abrasive disk mainly comprises an outer cover, an inner cover, a base disk, a plurality of magnetic supporting bases, an amplitude-change pole supporting base and ultrasonic vibration blocks. The multiple ultrasonic vibration blocks are evenly distributed in the circumferential direction of the base disk to be spliced into the large-size annular abrasive disk, and the radial ultrasonic vibration of the abrasive disk is achieved. The inner cover is installed on an inner ring of concentric circles of the base disk. The outer cover is installed on an outer ring concentric with the base disk. The base disk is in a concentric circle shape, and a motor main shaft is installed and connected in a center hole of the base disk. An abrasive block is driven by a motor to rotate so as to achieve end face grinding machining. The large-size radial ultrasonic auxiliary end face grinding abrasive disk can be used for ultrasonic auxiliary end face grinding and ultrasonic auxiliary milling and polishing, and therefore large batched ultrasonic end face grinding, milling and polishing on components can be achieved, and the machining efficiency and the machining precision of the components are greatly improved.
Description
Technical field
The present invention relates to a millstone device, particularly relate to a kind of large scale radial ultrasonic and assist cross grinding mill.
Background technology
The hard brittle materials such as engineering ceramics, optical glass, artificial lens are widely used because having the advantages such as hardness is high, chemical stability good, not oxidizable, wear-resistant, corrosion-resistant.But these hard brittle materials have high hardness and fragility, its processing is very difficult, the especially processing of some laminar photoelectricity flat parts, not only requires to have higher form accuracy, also requires to have higher machined surface quality.The current processing for this type slice part of hard brittle material mainly adopts the processing method of free abrasive twin grinding and polishing.But the feature due to free abrasive attrition process self makes the form accuracy processing rear part poor, and working (machining) efficiency is lower.Along with the development of machine tool equipment and emery wheel technology of preparing, existing enterprise adopts concretion abrasive emery wheel to carry out Double face grinding processing to it in recent years, to improve form accuracy and the working (machining) efficiency of part processing, but the attrition process of free abrasive relatively, it is large to there is machining damage in Double face grinding processing, the problems such as part easily breaks, and machined surface quality is poor.
Supersonic vibration assistant grinding is the novel grinding processing method of one of development nearly decades and application, a large amount of theories and experimental study show, supersonic vibration assistant grinding has the incomparable technological effect of plain grinding when processing hard fragility difficult-to-machine material, there is working (machining) efficiency high, the advantages such as machining damage is little, and surface quality of workpieces is good.Therefore, ultrasonic vibration aided grinding process technology is used for process the Double face grinding of hard material sheet parts, significant to reduction part machining damage, raising working (machining) efficiency and suface processing quality.
But, in supersonic vibration assistant grinding processing, due to ultrasonic vibration installation self, ultrasonic vibration often can only be applied on less workpiece or instrument, be difficult to the ultrasonic vibration realizing large scale mill or workpiece.And in the Double face grinding processing of hard brittle material sheet parts, in order to ensure production efficiency, often adopt the processing of large scale mill.Therefore, the Double face grinding processing how ultrasonic vibration being used for auxiliary hard fragility sheet parts becomes technological difficulties.Based on this, the present invention proposes the design that a kind of large scale radial ultrasonic assists cross grinding mill.
Summary of the invention
The object of invention is the deficiency overcoming prior art, a kind of large scale radial ultrasonic is provided to assist cross grinding mill, can be used for ultrasonic wave added cross grinding, ultrasonic wave added grinding and polishing, thus can realize, to the ultrasonic cross grinding of the batch that part is large, grinding and polishing, greatly improving working (machining) efficiency and the machining accuracy of part.
The technical solution adopted for the present invention to solve the technical problems is: provide large scale radial ultrasonic to assist cross grinding mill, comprising: enclosing cover, inner cap, basal disc and some magnetic support seats, ultrasonic transformer supporting seat and Under Ultrasonic Vibration motion block;
Several Under Ultrasonic Vibration motion blocks described are uniformly distributed along basal disc circumferencial direction, are combined into a large-sized annular mill, realize the radial ultrasonic vibration of mill; Described Under Ultrasonic Vibration motion block is made up of ultrasonic transducer, ultrasonic transformer, magnetic rod and abrading block; Described each Under Ultrasonic Vibration motion block one end is fixing with on basal disc by ultrasonic transformer zero amplitude place, and the other end is then supported by magnetic force by the magnetic rod of magnetic support seat to Under Ultrasonic Vibration motion block end be arranged on basal disc; Described adjacent ultrasonic vibrating mass forms an angle in basal disc circumference, and there is comparatively small gap between adjacent abrading block, and gap adopts a kind of softer material to fill, and plays sealing function; Described inner cap is installed and the concentrically ringed inner ring of basal disc, and described enclosing cover is installed on the concentrically ringed outer ring of basal disc; Described basal disc is concentric circles, and its centre bore is used for attaching electric machine main shaft, rotates to realize cross grinding processing by abrading block described in driven by motor; Ultrasonic signal passes to ultrasonic amplitude transformer by brush and coil, does the radial vibration relative to basal disc by the axial vibration band dynamic grinding block of ultrasonic amplitude transformer, thus realizes the processing of ultrasonic wave added cross grinding.
Preferably, described ultrasonic transducer comprises piezoelectric vibrator; Described piezoelectric vibrator promotes the ultrasonic vibration that abrading block produces certain frequency and amplitude; On described magnetic rod, two the first annular magnets match with the position of upper two the second annular magnets of magnetic support seat and the polarity of junction is identical, make magnetic rod realize contactless supporting role on magnetic support seat.
Preferably, described abrading block comprises abrasive material block and abrading block pedestal; The abrasive material block of described abrading block front end and abrading block pedestal are wedge-like engagement, and abrasive material block and the abrading block pedestal of abrading block rear end are that right angle coordinates; Be fixed by elastic washer and bolt between described abrasive material block and abrading block pedestal.
Preferably, the method that described abrading block surface adopts the method for plating or soldering to make single layer of abrasive particles or described abrading block surface employing sintering makes the abrading block of multilayer abrasive material; On described abrading block, abrasive material can adopt super hard abrasive, also can adopt conventional abrasive material; If described abrading block surface is without abrasive particle, can be used for ultrasonic wave added grinding and the polishing of free abrasive.
Preferably, described abrading block number, can according to the size of the concrete size of large scale mill, single vibrating mass and need of work Reasonable adjustment.
Preferably, along the distribution of basal disc even circumferential, there is certain gap between adjacent abrading block, fill in gap with flexible material in described abrading block.
Preferably, the finishing of described mill: if soldering and plating abrading block, then first polished by the upper surface block of abrading block, then makes individual layer abrasive material on its surface by plating or method for welding; If sintering grinding block or without abrasive particle abrading block, then the mode by attrition realizes surfacing.
Preferably, described basal disc bottom is distributed with circular coil, and described circular coil and brush terminate to be connected power supply, and wherein ground wire shares; The supply of all abrading block power supplys is provided by a large power supply, and each abrading block has corresponding amplification and regulating circuit, to adapt to the difference of intrinsic frequency between each abrading block, and the minor variations of intrinsic frequency in use procedure.
Large scale radial ultrasonic assists the using method of cross grinding mill: comprise the following steps:
A1, assist cross grinding mill to be installed on motor large scale radial ultrasonic, this large scale radial ultrasonic of driven by motor assists cross grinding mill to rotate;
A2, ultrasonic-frequency power supply pass to ultrasonic amplitude transformer by brush and coil, and ultrasonic amplitude transformer band dynamic grinding block does the radial vibration relative to basal disc, make abrasive material block grinding work piece.
The invention has the beneficial effects as follows:
1, large scale radial ultrasonic end-face grinding plate of the present invention circumferentially evenly respectively to be arranged Under Ultrasonic Vibration motion block at basal disc, utilizes abrading block to realize cross grinding to handicraft product, grinding and polishing; Need between abrading block to adopt soft material to fill, prevent working fluid from entering emery wheel inside, cause piezoelectricity abrading block power supply short circuit and corrosion emery wheel inner body, the transmission of abrading block ultrasonic vibration can not be affected again simultaneously.
2, single abrading block surface can adopt the method for plating and soldering to make single layer of abrasive particles, and sintering method also can be adopted to make the abrading block of multilayer abrasive material, for grinding; On abrading block, abrasive material can adopt super hard abrasive, also can adopt conventional abrasive material; If abrading block surface is without abrasive particle, also can be used for ultrasonic wave added grinding and the polishing of free abrasive.
3, according to the concrete size of large scale mill and the size of single vibrating mass, can install the vibration abrading block of fair amount at the circumferencial direction of large scale mill, number can adjust as required.
4, abrading block is formed by abrasive material block, abrading block pedestal, and is adopted screws clamp; Abrasive material block, abrading block pedestal are wedge-like engagement away from one end of ultrasonic amplitude transformer, and the other end is that right angle coordinates; This structure had both been conducive to the transmission of ultrasonic vibration and had reduced the loss of ultrasonic vibrational energy in other directions, was conducive to again the handling that abrasive material block is changed.
5, single abrading block promotes by piezoelectric vibrator the ultrasonic vibration that it produces certain frequency and amplitude, be connected and fixed in ultrasonic amplitude transformer zero amplitude position and basal disc simultaneously, magnetic rod one end and abrading block are spirally connected, the other end two the first annular magnets and the effect of two the second annular magnet two like magnetic poles repel each others make itself and magnetic support seat diametrically can be contactless relative fixing, improve the radial rigidity of abrading block and the circumferential strength along ultrasonic amplitude transformer, and then raising machining accuracy, and the transmission of its axial ultrasonic vibration wave can not be affected, also loss and the system heating of ultrasonic energy can not be caused.By magnetic force, it is supported, to improve the rigidity of abrading block.
6, large scale radial ultrasonic of the present invention assists cross grinding mill both to can be used for Double face grinding, grinding and polishing, also can be used for the grinding of single end face, grinding and polishing.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of large scale radial ultrasonic of the present invention assists cross grinding mill to be not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the overall schematic that a kind of large scale radial ultrasonic of the present invention assists cross grinding mill.
Fig. 2 is the overall explosive view that a kind of large scale radial ultrasonic of the present invention assists cross grinding mill.
Fig. 3 is the bottom coil that a kind of large scale radial ultrasonic of the present invention assists cross grinding mill.
Fig. 4 is the explosive view of Under Ultrasonic Vibration motion block of the present invention.
Fig. 5 is the explosive view of abrading block of the present invention.
Fig. 6 is the explosive view of magnetic rod of the present invention.
Fig. 7 is the explosive view of ultrasonic transducer of the present invention.
Fig. 8 is the explosive view of magnetic support seat of the present invention.
Fig. 9 is the explosive view of ultrasonic transformer supporting seat of the present invention.
Detailed description of the invention
Embodiment 1
Shown in Fig. 1 and Fig. 2, a kind of large scale radial ultrasonic of the present invention assists cross grinding mill, comprising: enclosing cover 1, inner cap 2, basal disc 5 and some magnetic support seats 33, ultrasonic transformer supporting seat 34 and Under Ultrasonic Vibration motion block 6;
Several Under Ultrasonic Vibration motion blocks 6 described are uniformly distributed along basal disc 5 circumferencial direction, are combined into a large-sized annular mill, realize the radial ultrasonic vibration of mill; Described Under Ultrasonic Vibration motion block 6 is made up of ultrasonic transducer 13, ultrasonic transformer 12, magnetic rod 8 and abrading block 9; Described each Under Ultrasonic Vibration motion block 6 one end is fixing with on basal disc 5 by ultrasonic transformer 12 zero amplitude place, and the other end is then supported by magnetic force by the magnetic rod 8 being arranged on magnetic support seat 33 pairs of Under Ultrasonic Vibration motion block 6 ends on basal disc 5; Described adjacent ultrasonic vibrating mass 6 forms an angle in basal disc 5 circumference, and there is comparatively small gap between adjacent abrading block 9, and gap adopts a kind of softer material to fill, and plays sealing function; Described inner cap 2 is installed and the concentrically ringed inner ring of basal disc 5, and described enclosing cover 1 is installed on the concentrically ringed outer ring of basal disc 5; Described basal disc 5 is concentric circles, and its centre bore is used for attaching electric machine main shaft, rotates to realize cross grinding processing by abrading block described in driven by motor 9; Ultrasonic signal passes to ultrasonic amplitude transformer 12 by brush and coil 7, does the radial vibration relative to basal disc 5 by the axial vibration band dynamic grinding block of ultrasonic amplitude transformer 12, thus realizes the processing of ultrasonic wave added cross grinding.
Further, described ultrasonic transducer 13 comprises piezoelectric vibrator 23; Described piezoelectric vibrator 23 promotes the ultrasonic vibration that abrading block 9 produces certain frequency and amplitude; On described magnetic rod 8, two the first annular magnets 20 match with the position of two the second annular magnets 31 on magnetic support seat 33 and the polarity of junction is identical, magnetic rod 8 is made to realize contactless supporting role on magnetic support seat 33, improve the stability of ultrasonic vibration system and the rigidity of mill, and then raising machining accuracy, and the transmission of its axial ultrasonic vibration wave can not be affected, also can not cause loss and the system heating of ultrasonic energy.
Further, described abrading block 9 comprises abrasive material block 15 and abrading block pedestal 14; Abrasive material block 15 and the abrading block pedestal 14 of described abrading block 9 front end are wedge-like engagement, the abrasive material block 15 of abrading block 9 rear end with abrading block pedestal 14 for right angle coordinates; Be fixed by elastic washer and bolt between described abrasive material block 15 and abrading block pedestal 14.This structure had both been conducive to the transmission of ultrasonic vibration and had reduced the loss of ultrasonic vibrational energy in other directions, was conducive to again the replacing handling of abrasive material block.
Further, the method that described abrading block 9 surface adopts the method for plating or soldering to make single layer of abrasive particles or described abrading block surface employing sintering makes the abrading block of multilayer abrasive material; On described abrading block 9, abrasive material can adopt super hard abrasive, also can adopt conventional abrasive material; If described abrading block 9 surface is without abrasive particle, can be used for ultrasonic wave added grinding and the polishing of free abrasive.
Further, described abrading block 9 number, can according to the size of the concrete size of large scale mill, single vibrating mass 6 and need of work Reasonable adjustment.
Further, along the distribution of basal disc even circumferential, there is certain gap between adjacent abrading block in described abrading block 9, fill with flexible material in gap, prevent working fluid from entering emery wheel inside, cause piezoelectricity abrading block power supply short circuit and corrosion emery wheel inner body, the transmission of abrading block 9 ultrasonic vibration can not be affected again simultaneously.
Further, the finishing of described mill: if soldering and plating abrading block, then first polished by the upper surface block of abrading block, then makes individual layer abrasive material on its surface by plating or method for welding; If sintering grinding block or without abrasive particle abrading block, then the mode by attrition realizes surfacing.
Further, described basal disc 5 bottom is distributed with circular coil 7, and described circular coil 7 contacts with brush and connects power supply, and wherein ground wire shares; The supply of all abrading block 9 power supplys is provided by a large power supply, and each abrading block 9 has corresponding amplification and regulating circuit, the difference of intrinsic frequency during to adapt to vibrate between each abrading block 9, and the minor variations of intrinsic frequency in use procedure.
A kind of large scale radial ultrasonic assists the using method of cross grinding mill: comprise the following steps:
A1, assist cross grinding mill to be installed on motor large scale radial ultrasonic, this large scale radial ultrasonic of driven by motor assists cross grinding mill to rotate;
A2, ultrasonic-frequency power supply pass to ultrasonic amplitude transformer 12 by brush and coil, and ultrasonic amplitude transformer 12 does the radial vibration relative to basal disc 5 with dynamic grinding block 9, make abrasive material block abrasive product.
On abrading block 9, abrasive material block 15 both can be used for Double face grinding to part, grinding and polishing, also can be used for the single end face grinding to part, grinding and polishing.
Above-described embodiment is only used for further illustrating a kind of large scale radial ultrasonic of the present invention and assists cross grinding mill; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection domain of technical solution of the present invention.
Claims (9)
1. large scale radial ultrasonic assists a cross grinding mill, it is characterized in that, comprises enclosing cover, inner cap, basal disc and some magnetic support seats, ultrasonic transformer supporting seat and Under Ultrasonic Vibration motion block;
Several Under Ultrasonic Vibration motion blocks described are uniformly distributed along basal disc circumferencial direction, are combined into a large-sized annular mill, realize the radial ultrasonic vibration of mill; Described Under Ultrasonic Vibration motion block is made up of ultrasonic transducer, ultrasonic transformer, magnetic rod and abrading block; Described each Under Ultrasonic Vibration motion block one end is fixing with on basal disc by ultrasonic transformer zero amplitude place, and the other end is then supported by magnetic force by the magnetic rod of magnetic support seat to Under Ultrasonic Vibration motion block end be arranged on basal disc; Described adjacent ultrasonic vibrating mass forms an angle in basal disc circumference, and there is comparatively small gap between adjacent abrading block, and gap adopts a kind of softer material to fill, and plays sealing function; Described inner cap is installed and the concentrically ringed inner ring of basal disc, and described enclosing cover is installed on the concentrically ringed outer ring of basal disc; Described basal disc is concentric circles, and its centre bore is used for attaching electric machine main shaft, rotates to realize cross grinding processing by abrading block described in driven by motor; Ultrasonic signal passes to ultrasonic amplitude transformer by brush and coil, does the radial vibration relative to basal disc by the axial vibration band dynamic grinding block of ultrasonic amplitude transformer, thus realizes the processing of ultrasonic wave added cross grinding.
2. a kind of large scale radial ultrasonic according to claim 1 assists cross grinding mill, it is characterized in that: described ultrasonic transducer comprises piezoelectric vibrator; Described piezoelectric vibrator promotes the ultrasonic vibration that abrading block produces certain frequency and amplitude; On described magnetic rod, two the first annular magnets match with the position of upper two the second annular magnets of magnetic support seat and the polarity of junction is identical, make magnetic rod realize contactless supporting role on magnetic support seat.
3. a kind of large scale radial ultrasonic according to claim 1 assists cross grinding mill, it is characterized in that: described abrading block comprises abrasive material block and abrading block pedestal; The abrasive material block of described abrading block front end and abrading block pedestal are wedge-like engagement, and abrasive material block and the abrading block pedestal of abrading block rear end are that right angle coordinates; Be fixed by elastic washer and bolt between described abrasive material block and abrading block pedestal.
4. a kind of large scale radial ultrasonic according to claim 3 assists cross grinding mill, it is characterized in that: described abrading block surface adopts the method for plating or soldering to make single layer of abrasive particles or described abrading block surface adopts the method for sintering to make the abrading block of multilayer abrasive material; On described abrading block, abrasive material can adopt super hard abrasive, also can adopt conventional abrasive material; If described abrading block surface is without abrasive particle, can be used for ultrasonic wave added grinding and the polishing of free abrasive.
5. a kind of large scale radial ultrasonic according to claim 1 assists cross grinding mill, it is characterized in that: described abrading block number, can according to the size of the concrete size of large scale mill, single vibrating mass and need of work Reasonable adjustment.
6. a kind of large scale radial ultrasonic according to claim 1 assists cross grinding mill, it is characterized in that: described abrading block, along the distribution of basal disc even circumferential, exists certain gap between adjacent abrading block, fills in gap with flexible material.
7. a kind of large scale radial ultrasonic according to claim 1 assists cross grinding mill, it is characterized in that: the finishing of described mill: if soldering and plating abrading block, then first the upper surface block of abrading block is polished, then make individual layer abrasive material on its surface by plating or method for welding; If sintering grinding block or without abrasive particle abrading block, then the mode by attrition realizes surfacing.
8. a kind of large scale radial ultrasonic according to claim 1 assists cross grinding mill, it is characterized in that: described basal disc bottom is distributed with circular coil, and described circular coil contacts with brush and connects power supply, and wherein ground wire shares; The supply of all abrading block power supplys is provided by a large power supply, and each abrading block has corresponding amplification and regulating circuit, the difference of intrinsic frequency during to adapt to vibrate between each abrading block, and the minor variations of intrinsic frequency in use procedure.
9. a kind of large scale radial ultrasonic according to claim 1 assists the using method of cross grinding mill: comprise the following steps:
A1, assist cross grinding mill to be installed on motor large scale radial ultrasonic, this large scale radial ultrasonic of driven by motor assists cross grinding mill to rotate;
A2, ultrasonic-frequency power supply pass to ultrasonic amplitude transformer by brush and coil, and ultrasonic amplitude transformer band dynamic grinding block does the radial vibration relative to basal disc, make abrasive material block grinding work piece.
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| CN108127484A (en) * | 2017-11-29 | 2018-06-08 | 北京空间机电研究所 | A kind of mirror optics processing method being bonded using splicing ring and processing unit (plant) |
| CN108818162A (en) * | 2018-06-28 | 2018-11-16 | 杭州电子科技大学 | Novel vibrating motivates grinding and polishing tool head device |
| CN113997158A (en) * | 2021-10-31 | 2022-02-01 | 东台市洪华机械配件有限公司 | Threaded flange sealing surface polishing device |
| CN115157021A (en) * | 2022-07-05 | 2022-10-11 | 中国航发贵阳发动机设计研究所 | Magnetic ultrasonic composite grinding device for large-size variable-section complex cylindrical part |
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| CN115157021A (en) * | 2022-07-05 | 2022-10-11 | 中国航发贵阳发动机设计研究所 | Magnetic ultrasonic composite grinding device for large-size variable-section complex cylindrical part |
| CN115157021B (en) * | 2022-07-05 | 2024-04-09 | 中国航发贵阳发动机设计研究所 | Magnetic force ultrasonic composite grinding device for large-size variable-section complex cylindrical part |
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