CN202779840U - Ultrasonic two-way vibration turning device - Google Patents
Ultrasonic two-way vibration turning device Download PDFInfo
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- CN202779840U CN202779840U CN201220453060.5U CN201220453060U CN202779840U CN 202779840 U CN202779840 U CN 202779840U CN 201220453060 U CN201220453060 U CN 201220453060U CN 202779840 U CN202779840 U CN 202779840U
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Abstract
The utility model provides an ultrasonic two-way vibration turning device. The ultrasonic two-way vibration turning device comprises two amplitude transformers arranged in an up and down manner; one end of each amplitude transformer is connected with a transducer; and meanwhile, each amplitude transformer is connected with a pressure mechanism. According to the utility model, two amplitude transformers are adopted to vibrate turning tools; during the ultrasonic vibration turning process, the amplitude transformers are enabled to be contacted with a turning tool arbor through the pressure mechanisms, and no matter how the turning parameters change, stable output of ultrasonic energy can not be influenced directly, and the turning tool arbor can receive a stable vibration force through stable ultrasonic energy output; the two amplitude transformers vibrate the turning tool arbor alternately to ensure continuous and greater vibration amplitude of a turning tool nose, so that the ultrasonic vibration turning effect can be ensured, and industrialized application of ultrasonic vibration turning can be realized veritably.
Description
Technical field
The utility model relates to a kind of device for workpiece being carried out ultrasonic vibration turning on lathe, belongs to ultrasonic wave turning technical field.
Background technology
Ultrasonic vibration turning is to instigate lathe tool with the vibration frequency of the ultrasonic wave range of vibration frequency f=16-50KHz, amplitude a=10-25 μ m and the turning that little amplitude carries out along cutting direction.Ultrasonic vibration apparatus, generally include ultrasonic transformer and transducer, one end of ultrasonic transformer is connected with transducer, transducer is electrically connected with supersonic generator, in turning process, the other end of ultrasonic transformer is acted on the knife bar of lathe tool, start supersonic generator, transducer converts the electric oscillation signal to the supersonic frequency mechanical oscillation, and ultrasonic transformer passes to lathe tool after the supersonic frequency mechanical oscillation of transducer are amplified, make Lathe tool tip produce the supersonic frequency vibration, realize the ultrasonic wave turning to workpiece.
Existing ultrasonic vibration turning technology has flexural vibrating ultrasound turning technology shown in Figure 1 and extensional vibration shown in Figure 2-flexural vibrating ultrasound turning technology.Flexural vibrating ultrasound turning technology is: the ultrasonic transformer 2 that is connected with transducer 3 directly is fixedly connected on the rear end of lathe tool 1; ultrasonic transformer 2 is consistent with lathe tool 1 direction; protective sleeve 8 of the outer setting of ultrasonic transformer 2 and transducer 3; transducer 3 links to each other with supersonic generator; transducer 3 converts the electric oscillation signal to the supersonic frequency mechanical oscillation, and ultrasonic transformer 2 passes to lathe tool 1 after the supersonic frequency mechanical oscillation of transducer 3 are amplified, and promotes cutter head and does flexural vibrations.Extensional vibration-flexural vibrating ultrasound turning technology is that the ultrasonic transformer 2 that will be connected with transducer 3 is by the vertical rear portion (between the rear end and knife rest 4 of lathe tool 1) that is fixedly connected on lathe tool 1 of bolt.This dual mode all is that ultrasonic transformer 2 and lathe tool 1 are connected to one, with lathe tool 1 by bolt 5 and briquetting 7 clampings on knife rest 4, the pressure spot A and the B that act on the lathe tool 1 by bolt and briquetting simultaneously must be on the nodes of ultrasonic wave output.Ultrasonic transformer 2 produces ultrasonic vibration to lathe tool 1 under transducer 3 drives.
Chinese patent literature CN101633046B discloses a kind of " special ultrasonic vibration turning device ", comprise main clamp spare, inferior anchor clamps spare base plate, inferior anchor clamps spare pressing plate and node pad, main clamp spare is connected with an end fixed vertical of time anchor clamps spare base plate, inferior anchor clamps spare pressing plate is fixedly connected with time anchor clamps spare base plate and is parallel to each other, and the node pad is fixedly installed on time anchor clamps spare base plate and is right against time anchor clamps spare pressing plate.The node location of node pad is identical with the node location of lathe tool, the nodal pitch of node pad is that ultrasonic wave is propagated 1/2 of wavelength in lathe tool, lathe tool is installed in this isolated plant, make the position of lathe tool node corresponding with the position of node pad, can realize the movement of cutter above-below direction, levelling point of a knife and work centre line are at grade.
More than existing ultrasonic vibration turning mode, all be that ultrasonic transformer and lathe tool knife bar (or lathe tool) are connected to one, the problem that this mode exists is, when Cutting parameters (such as linear velocity, cutting depth, the amount of feeding etc.) when changing, the load characteristic of turning just changes, and the variation of this load directly affects the stability of ultrasonic energy output, and ultrasonic energy output is unstable to be affected the vibration of Lathe tool tip and affect the quality of turning with regard to direct; Even, in the situation that the cutting force large in load, that lathe tool is suffered is large or load variations is very large, ultrasonic energy output is very little even not output just, and the point of a knife of lathe tool also will vibrate very little even not vibration, during to workpiece turning, do not have the effect of ultrasonic vibration; Because the pressure spot A on the lathe tool and B must be on the nodes of ultrasonic wave output, because the restriction of various conditions, the very difficult this point that guarantees if do not satisfy this requirement, just can't make lathe tool produce ultrasonic vibration simultaneously.In addition because the impact of ultrasonic transformer is periodic, when a ultrasonic transformer only was set the lathe tool impact shock, ultrasonic transformer can only realize lathe tool half-wave impact shock, can not make lathe tool remain vibration than large amplitude.This also is that up to the present ultrasonic vibration turning does not have the essence reason of industrial applications.
Summary of the invention
The utility model is for the problem that existing ultrasonic wave turning technology exists, provide a kind of ultrasonic energy output insensitive to the turning load, make stable, the effective ultrasonic wave direction vibration truning fixture of vibration turning of Lathe tool tip vibration.
Ultrasonic wave direction vibration truning fixture of the present utility model, by the following technical solutions:
This ultrasonic vibration turning device comprises two ultrasonic transformers, and two ultrasonic transformers are setting up and down, and an end of each ultrasonic transformer is connected with a transducer respectively, and each ultrasonic transformer is connected with a pressure mechanism respectively simultaneously.
Transducer can for the flexible transducer of magnetic hysteresis, also can be piezoelectric ceramic transducer.
Described pressure mechanism is spring, hydraulic cylinder or cylinder.
With an end of two ultrasonic transformers act on up and down the lathe tool knife bar at Lathe tool tip and the position between the knife rest of lathe tool is installed or acts on symmetrically up and down the rear portion outside the mounting tool post of stretching out of lathe tool, two ultrasonic transformers just contact with the knife bar of lathe tool, are not connected as a single entity.Pressure mechanism contacts ultrasonic transformer all the time with the lathe tool knife bar in turning process, start two supersonic generators, make transducer convert the electric oscillation signal to the supersonic frequency mechanical oscillation, make the vibration phase of two ultrasonic transformers differ 180 °, ultrasonic transformer passes to lathe tool after the supersonic frequency mechanical oscillation of transducer are amplified, two ultrasonic transformers alternately produce vibration to the lathe tool knife bar up and down, realize the ultrasonic wave turning to workpiece under stable vibration force.
The utility model adopts two ultrasonic transformers to lathe tool is vibrated simultaneously, in the ultrasonic vibration turning process, by pressure mechanism ultrasonic transformer is contacted all the time with the lathe tool knife bar, no matter Cutting parameters is (such as linear velocity, cutting depth, the amount of feeding etc.) what kind of variation occurs, can be not directly the stable output of ultrasonic energy not be exerted an influence, and the output of stable ultrasonic energy makes the lathe tool knife bar obtain stable vibration force, two ultrasonic transformers alternately produce impact shock to the lathe tool knife bar, guaranteed the continuous larger Oscillation Amplitude of Lathe tool tip, thereby guaranteed the effect of ultrasonic vibration turning, made ultrasonic vibration turning really obtain industrial applications.
Description of drawings
Fig. 1 is the principle schematic of existing flexural vibrating ultrasound turning.
Fig. 2 is the principle schematic of existing extensional vibration-flexural vibrating ultrasound turning.
Fig. 3 is the first arrangement schematic diagram of the present utility model.
Fig. 4 is the second arrangement schematic diagram of the present utility model.
Among the figure: 1, lathe tool, 2, ultrasonic transformer, 3, transducer; 4, knife rest, 5, bolt, 6, workpiece; 7, briquetting, 8, protective sleeve, 9, upper shell; 10, upward pressure mechanism, 11, upper junction plate, 12, upper ultrasonic transformer; 13, upper transducer, 14, lower house, 15, downforce mechanism; 16, lower connecting plate, 17, lower ultrasonic transformer, 18, lower transducer.
The specific embodiment
As shown in Figure 3 and Figure 4, ultrasonic wave direction vibration truning fixture of the present utility model comprises ultrasonic transformer 12 and lower ultrasonic transformer 17 on two ultrasonic transformers setting up and down.The upper end of upper ultrasonic transformer 12 is connected with an end of upper transducer 13, the lower end is against on the knife bar of lathe tool 1, the outer cover of upper ultrasonic transformer 12 and upper transducer 13 has upper shell 9, upper shell 9 is fixed on the ultrasonic transformer 12, upper shell 9 is connected with upward pressure mechanism 10, and the pressure that upward pressure mechanism 10 produces is applied on the upper ultrasonic transformer 12 by upper shell 9.The lower end of lower ultrasonic transformer 17 is connected with an end of lower transducer 18, the upper end is against on the knife bar of lathe tool 1, the outer cover of lower ultrasonic transformer 17 and lower transducer 18 has lower house 14, lower house 14 is fixed on the lower ultrasonic transformer 17, lower house 14 is connected with downforce mechanism 15, and the pressure that downforce mechanism 15 produces is applied on the lower ultrasonic transformer 17 by lower house 14.
Upward pressure mechanism 10 and downforce mechanism 15 can be installed on the little supporting plate of lathe by upper junction plate 11 and lower connecting plate 16 respectively.
As Fig. 3 provide be with upper ultrasonic transformer 12 and lower ultrasonic transformer 17 act on symmetrically the lathe tool knife bar at Lathe tool tip and the mode at the position between the knife rest 4 of lathe tool is installed.
What provide such as Fig. 4 is the mode of stretching out the rear portion outside the mounting tool post 4 that upper ultrasonic transformer 12 and lower ultrasonic transformer 17 is acted on symmetrically lathe tool.
When workpiece 6 is carried out ultrasonic vibration turning, lathe tool 1 is installed on the knife rest 4 of lathe, upper ultrasonic transformer 12 all contacts with the knife bar of lathe tool 1 with lower ultrasonic transformer 17, the pressure that upward pressure mechanism 10 and downforce mechanism 15 produce acts on upper ultrasonic transformer 12 and the lower ultrasonic transformer 17 by upper shell 9 and lower house 14 respectively, by this pressure upper ultrasonic transformer 12 and lower ultrasonic transformer 17 are pressed on the knife bar of lathe tool 1, guarantee when turning on ultrasonic transformer 12 and lower ultrasonic transformer 17 be in all the time contact condition with lathe tool 6.Upper transducer 13 and lower transducer 18 are electrically connected with a supersonic generator of outside respectively, start two supersonic generators, transducer 2 converts the electric oscillation signal to the supersonic frequency mechanical oscillation, make transducer 13 and lower transducer 18 convert the electric oscillation signal to the supersonic frequency mechanical oscillation, make simultaneously the vibration phase of ultrasonic transformer 12 and 17 two ultrasonic transformers of lower ultrasonic transformer differ 180 °, upper ultrasonic transformer 12 and lower ultrasonic transformer 17 pass to lathe tool after the supersonic frequency mechanical oscillation of transducer are amplified, two ultrasonic transformers alternately produce vibration to the lathe tool knife bar up and down, have guaranteed the continuous larger Oscillation Amplitude of Lathe tool tip
,Under stable vibration force, realize the ultrasonic wave turning to workpiece.
Claims (2)
1. a ultrasonic wave direction vibration truning fixture comprises two ultrasonic transformers, it is characterized in that: two ultrasonic transformers are setting up and down, and an end of each ultrasonic transformer is connected with a transducer respectively, and each ultrasonic transformer is connected with a pressure mechanism respectively simultaneously.
2. ultrasonic wave direction vibration truning fixture according to claim 1, it is characterized in that: described pressure mechanism is spring, hydraulic cylinder or cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220453060.5U CN202779840U (en) | 2012-08-31 | 2012-09-07 | Ultrasonic two-way vibration turning device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316804.3 | 2012-08-31 | ||
| CN201210316804 | 2012-08-31 | ||
| CN201220453060.5U CN202779840U (en) | 2012-08-31 | 2012-09-07 | Ultrasonic two-way vibration turning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779840U true CN202779840U (en) | 2013-03-13 |
Family
ID=47807182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220453060.5U Expired - Lifetime CN202779840U (en) | 2012-08-31 | 2012-09-07 | Ultrasonic two-way vibration turning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480871A (en) * | 2013-09-11 | 2014-01-01 | 西安理工大学 | Height-adjustable ultrasonic turning tool clamping device |
| CN112827786A (en) * | 2020-12-30 | 2021-05-25 | 中国科学院宁波材料技术与工程研究所 | Ultrasonic treatment device |
-
2012
- 2012-09-07 CN CN201220453060.5U patent/CN202779840U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480871A (en) * | 2013-09-11 | 2014-01-01 | 西安理工大学 | Height-adjustable ultrasonic turning tool clamping device |
| CN103480871B (en) * | 2013-09-11 | 2016-01-27 | 西安理工大学 | Adjustable for height ultrasonic turning tool clamping device |
| CN112827786A (en) * | 2020-12-30 | 2021-05-25 | 中国科学院宁波材料技术与工程研究所 | Ultrasonic treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |