CN203236314U - Centerless grinding device - Google Patents
Centerless grinding device Download PDFInfo
- Publication number
- CN203236314U CN203236314U CN 201320249346 CN201320249346U CN203236314U CN 203236314 U CN203236314 U CN 203236314U CN 201320249346 CN201320249346 CN 201320249346 CN 201320249346 U CN201320249346 U CN 201320249346U CN 203236314 U CN203236314 U CN 203236314U
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- ultrasonic vibration
- plate
- workpiece
- vibration plate
- elastic metal
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Abstract
The utility model relates to a centerless grinding device which comprises a main grinding wheel and a supporting plate used for supporting a workpiece. An ultrasonic vibration plate is arranged beside the main grinding wheel, the supporting plate is arranged below a gap between the ultrasonic vibration plate and the main grinding wheel, a lead screw sleeve is connected with the position below the ultrasonic vibration plate, a rolling ball lead screw is arranged in the lead screw sleeve, one end of the rolling ball lead screw is connected with a stepped motor, the lead screw sleeve is arranged on a linear guide rail, the ultrasonic vibration plate is composed of an elastic metal plate and four piezoelectric ceramics, an even number of piezoelectric ceramics are arranged on the elastic metal plate, a power amplifier is connected with every two piezoelectric ceramics which are separated, each power amplifier is connected with a signal generator, and a friction sheet with the thickness of 0.5mm is arranged on the end face of the elastic metal plate. The application principle is that the ultrasonic vibration plate and the supporting plate jointly support and control the workpiece to move to conduct grinding and machining of a fine part. The centerless grinding device has the advantages of being simple in structure, small in error, and high in precision and quality.
Description
Technical field
The utility model relates to centreless grinding device and the application principle thereof of a kind of centreless grinding device, particularly a kind of micro-workpiece, and micro-workpiece is the following round piece of diameter 2mm.
Background technology
At present, as shown in Figure 1, centerless grinding is when carrying out cylindricalo grinding usually, and workpiece is placed between main emery wheel and the guide wheel, by the pallet supporting of its below, and by the guide wheel driven rotary.In traditional centerless grinding technology, for obtaining desirable form tolerance, surface accuracy and higher working (machining) efficiency, centerless grinder must possess high rigidity, relatively large emery wheel and guide wheel, and will accurately control the motion of guide wheel.Workpiece Machining Accuracy depends on circularity and the running accuracy thereof of guide wheel, and the main shaft of high-precision dressing technique and high running accuracy is essential for guide wheel, therefore needs to install additional rotation control assembly and trimming device etc. at centerless grinder.Because the limitation of structure, traditional centerless grinding equipment is not suitable for diameter less than the processing of the micro-workpiece of 2mm.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, a kind of centreless grinding device and application principle thereof of micro-workpiece are provided, solve the centerless grinding problem of micro-workpiece, the rotation error that can effectively avoid simultaneously the deviation from circular from that caused by guide wheel and guide wheel main shaft to cause improves the workpiece rotating precision.
The purpose of this utility model is achieved through the following technical solutions: a kind of centreless grinding device comprises main emery wheel and is used for the supporting plate of supporting workpiece, the other ultrasonic vibration plate that is provided with of main emery wheel, supporting plate places the below, gap between main emery wheel and the ultrasonic vibration plate, ultrasonic vibration plate below is connected with screw set, be provided with ball-screw in the screw set, one end of ball-screw is connected with stepper motor, screw set places on the line slideway, the ultrasonic vibration plate is comprised of elastic metal sheet and piezoelectric ceramics, elastic metal sheet is provided with the even numbered blocks piezoelectric ceramics, per two piezoelectric ceramics separately are connected with a power amplifier, each first power amplifier all links to each other with a signal generator, and the end face of elastic metal sheet is consolidated with the friction plate that thickness is 0.5mm.
The utility model is applicable to the centerless grinding of the workpiece of diameter below 2mm.
The utility model compared with prior art has the following advantages: the utility model is the effect that replaces directive wheel in traditional centerless grinder by the ultrasonic vibration plate, the ultrasonic vibration plate is bonded on the elastic metal sheet by piezoelectric ceramics and consists of, two AC signals (surpassing 20kHz) that will have phase difference amplify after-applied on piezoelectric ceramics by power amplifier, by crooked on the synthetic elastic metal sheet and the vertically vibration of both direction, end face at oscillating plate produces ultrasonic elliptical vibratory, rotatablely moving by the control of the frictional force between workpiece and the metallic plate of workpiece, the workpiece peripheral speed is identical with the linear velocity of the elliptical vibration at metallic plate end contact place.Because the utility model utilizes the ultrasonic elliptical vibratory plate to replace directive wheel and relevant attachment device thereof in the present centreless grinding device, structure is simplified, can process by the utility model for the fine workpiece below the diameter 2mm, and, the rotation error that this method can effectively avoid the deviation from circular from that caused by guide wheel and guide wheel main shaft to cause, improve the workpiece rotating precision, guaranteed grinding quality.
Description of drawings:
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
Number in the figure: 1-master's emery wheel, 2-supporting plate, 3-elastic metal sheet, 4-screw set, 5-ball-screw, 6-stepper motor, 7-line slideway, 8-piezoelectric ceramics, 9-power amplifier, 10-signal generator, 11-friction plate, 12-workpiece, 13-guide wheel.
The specific embodiment:
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the utility model, does not consist of the restriction to the utility model protection domain.
As Fig. 2 show the utility model a kind of as described in centreless grinding device, the centerless grinding of the workpiece of diameter below 2mm, comprise main emery wheel 1 and be used for the supporting plate 2 of supporting workpiece 12, the main emery wheel 1 other ultrasonic vibration plate that is provided with, supporting plate 2 places the below, gap between main emery wheel 1 and the ultrasonic vibration plate, ultrasonic vibration plate below is connected with screw set 4, be provided with ball-screw 5 in the screw set 4, one end of ball-screw 5 is connected with stepper motor 6, screw set 4 places on the line slideway 7, the ultrasonic vibration plate is comprised of elastic metal sheet 3 and piezoelectric ceramics 8, elastic metal sheet 3 is provided with even numbered blocks piezoelectric ceramics 8, per two piezoelectric ceramics 8 separately are connected with a power amplifier 9, each first power amplifier 9 all links to each other with a signal generator 10, the end face of elastic metal sheet 3 is the friction plate 11 of 0.5mm, guarantees to maintain enough frictional force between oscillating plate end face and micro-workpiece.
A kind of application principle of centreless grinding device, the ultrasonic vibration plate is bonded on the elastic metal sheet 3 by piezoelectric ceramics 8 and consists of, producing phase difference by signal generator 10 is two AC signals of ψ, and amplify after-applied on elastic metal sheet 3 by two power amplifiers, by crooked on the synthetic the elastic metal sheet 3 and vertically vibration of both direction, end face at elastic metal sheet 3 produces ultrasonic elliptical vibratory, add man-hour carrying out centerless grinding, by elastic metal sheet 3 and supporting plate 2 supporting workpieces 12, rotatablely moving by the control of the frictional force between workpiece 12 and the elastic metal sheet 3 of workpiece 12, workpiece 12 peripheral speeds are identical with the linear velocity of the elliptical vibration at elastic metal sheet 3 end contact places.
Because the grinding work piece diameter is smaller, in order effectively to carry out grinding experiment, the ultrasonic vibration plate can in height carry out coarse adjustment and fine setting, be rotated adjusting at horizontal plane around rotating shaft, by regulating the correct space geometry relation that can guarantee ultrasonic vibration plate end face, supporting plate, main emery wheel and workpiece.In grinding, main emery wheel at first towards ultrasonic vibration plate direction move until and supporting plate halt before interfering, then, micro-feeding device drive ultrasonic vibration plate and workpiece with the speed of 0.1mm/min towards the feeding of main emery wheel direction, micro-feeding device drives workpiece along returning in the other direction after workpiece begins grinding to last till size to be processed, and micro-feeding device is comprised of stepper motor, ball-screw, screw set.
The utility model is the effect that replaces directive wheel in traditional centerless grinder by the ultrasonic vibration plate, the ultrasonic vibration plate is bonded on the elastic metal sheet by piezoelectric ceramics and consists of, two AC signals (surpassing 20kHz) that will have phase difference amplify after-applied on piezoelectric ceramics by power amplifier, by crooked on the synthetic elastic metal sheet and the vertically vibration of both direction, end face at oscillating plate produces ultrasonic elliptical vibratory, rotatablely moving by the control of the frictional force between workpiece and the metallic plate of workpiece, the workpiece peripheral speed is identical with the linear velocity of the elliptical vibration at metallic plate end contact place.Because the utility model utilizes the ultrasonic elliptical vibratory plate to replace directive wheel and relevant attachment device thereof in the present centreless grinding device, structure is simplified, can process by the utility model for the fine workpiece below the diameter 2mm, and, the rotation error that this method can effectively avoid the deviation from circular from that caused by guide wheel and guide wheel main shaft to cause, improve the workpiece rotating precision, guaranteed grinding quality.
Claims (2)
1. centreless grinding device, described centreless grinding device comprises main emery wheel (1) and is used for the supporting plate (2) of supporting workpiece, it is characterized in that: the other ultrasonic vibration plate that is provided with of described main emery wheel (1), described supporting plate (2) places the below, gap between described main emery wheel (1) and the described ultrasonic vibration plate, described ultrasonic vibration plate below is connected with screw set (4), be provided with ball-screw (5) in the described screw set (4), one end of described ball-screw (5) is connected with stepper motor (6), described screw set (4) places on the line slideway (7), described ultrasonic vibration plate is comprised of elastic metal sheet (3) and piezoelectric ceramics (8), described elastic metal sheet (3) is provided with even numbered blocks piezoelectric ceramics (8), per two described piezoelectric ceramics (8) separately are connected with a power amplifier (9), each described first power amplifier (9) all links to each other with a signal generator (10), and the end face of described elastic metal sheet (3) is consolidated with the friction plate that thickness is 0.5mm (11).
2. described a kind of centreless grinding device according to claim 1, it is characterized in that: the diameter of the workpiece of processing is below 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320249346 CN203236314U (en) | 2013-05-10 | 2013-05-10 | Centerless grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320249346 CN203236314U (en) | 2013-05-10 | 2013-05-10 | Centerless grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203236314U true CN203236314U (en) | 2013-10-16 |
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ID=49313644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320249346 Expired - Fee Related CN203236314U (en) | 2013-05-10 | 2013-05-10 | Centerless grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203236314U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231287A (en) * | 2013-05-10 | 2013-08-07 | 南通龙汇光电技术有限公司 | Centreless grinding device and application principle thereof |
| CN108161687A (en) * | 2018-02-02 | 2018-06-15 | 中国工程物理研究院激光聚变研究中心 | A kind of rolling burr remover |
| CN108356690A (en) * | 2018-02-02 | 2018-08-03 | 中国工程物理研究院激光聚变研究中心 | A kind of piezoelectricity burr remover |
| CN108356691A (en) * | 2018-02-02 | 2018-08-03 | 中国工程物理研究院激光聚变研究中心 | A kind of rotation burr remover |
-
2013
- 2013-05-10 CN CN 201320249346 patent/CN203236314U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231287A (en) * | 2013-05-10 | 2013-08-07 | 南通龙汇光电技术有限公司 | Centreless grinding device and application principle thereof |
| CN108161687A (en) * | 2018-02-02 | 2018-06-15 | 中国工程物理研究院激光聚变研究中心 | A kind of rolling burr remover |
| CN108356690A (en) * | 2018-02-02 | 2018-08-03 | 中国工程物理研究院激光聚变研究中心 | A kind of piezoelectricity burr remover |
| CN108356691A (en) * | 2018-02-02 | 2018-08-03 | 中国工程物理研究院激光聚变研究中心 | A kind of rotation burr remover |
| CN108161687B (en) * | 2018-02-02 | 2024-01-26 | 中国工程物理研究院激光聚变研究中心 | Rolling deburring device |
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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: 20131016 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |