CN202438872U - Sharp knife server with adjustable rigidity - Google Patents
Sharp knife server with adjustable rigidity Download PDFInfo
- Publication number
- CN202438872U CN202438872U CN2012200784551U CN201220078455U CN202438872U CN 202438872 U CN202438872 U CN 202438872U CN 2012200784551 U CN2012200784551 U CN 2012200784551U CN 201220078455 U CN201220078455 U CN 201220078455U CN 202438872 U CN202438872 U CN 202438872U
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- spring
- flexible hinge
- framework
- sharp knife
- hinge
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Abstract
The utility model discloses a sharp knife server with adjustable rigidity. The sharp knife server is additionally provided with a knife rest assembly on combined parts such as a framework, a flexible hinge, piezoelectric ceramics, a knife holder and a diamond cutter, wherein the knife rest assembly consists of a spring bracket, a spring sleeve, a spring, a locking ring and the like; the spring bracket is arranged at the front end of the framework; a thread hole is formed in the middle of the spring bracket; the spring sleeve is matched with the thread hole through an external thread of the sleeve wall; the spring is arranged in the spring sleeve; one end of the spring is contacted with the bottom of an inner hole of the spring sleeve; and the other end of the spring is contacted with the flexible hinge on the framework. The pressure applied to the flexible hinge by the spring can be adjusted by rotating the spring sleeve, so that the rigidity of the sharp knife server is adjusted.
Description
Technical field
The utility model relates to the adjustable sharp knife servomechanism of a kind of rigidity.
Background technology
General sharp knife servomechanism is meant that (fast tool servo FTS) is also referred to as fast tool servo, little feed servo system or fast servo tool etc. to the sharp knife servo-drive system.On the lathe of non-round numerical control turning or asymmetric turning, FTS is installed; In the turning process; Main shaft drives the workpiece rotation; Cutter under the driving of FTS, with speed of mainshaft associated frequency along workpiece radially (for non-circular turning) or axially (for non-axial symmetry turning) do the reciprocating feed motion, thereby process the on-circular cross-section profile or the non-axial symmetry end face of workpiece.In non-round numerical control turning, the application of FTS can be processed internal combustion engine profile, camshaft, cam, the interior profile of non-circular bearing etc.In non-axial symmetry turning; Adopt diamond as cutter, under FTS drives, the non-axisymmetrical surfaces of turning optical element; Can repeat to process various special-shaped element, for example: free-form surface lens/minute surface, micro mirror array, micro-cannelure array etc. with complicated shape.
The FTS that is used for the non-axisymmetrical surfaces of processing optical element at present mainly be with piezoelectric ceramics as driving element, stroke is tens microns, frequency is thousands of hertz.Set when the rigidity of system is design, can not adjust as the case may be during use.
The utility model content
To the general nonadjustable problem of sharp knife servomechanism rigidity, the purpose of the utility model provides the adjustable sharp knife servomechanism of a kind of rigidity.The utility model is realized through following technical scheme: on the basis of a block of metal structural steel, cut out structures such as framework, flexible hinge, framework can provide mounting hole site so that be assembled on the lathe.On the framework parts such as piezoelectric ceramics, tool rest, pre-stressed bolt can be installed simultaneously.Piezoelectric ceramics is installed between the framework back rest and the flexible hinge, and the piezoelectric ceramics elongation of energising back promotes flexible hinge and moves.The other end of flexible hinge is equipped with tool rest, and diamond cutter can be fixed on the tool rest.Diamond cutter can be done the reciprocating motion of trace with the driving of piezoelectric ceramics, to realize the cutting feeding to workpiece.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: on a block of metal, cut out framework 11 and flexible hinge 10; On the position, axis of framework 11; Piezoelectric ceramics 12 is installed between the back rest and flexible hinge 10 of framework 11, and the other end of flexible hinge 10 connects tool rest 9, prestressed bolt 14 and connect the other end of piezoelectric ceramics 12 on the back rest of framework 11; Can regulate prestressing force through pre-stressed bolt 14.The front end of framework 11 is installed cutter holder assembly, and diamond cutter 3 is supported by cutter holder assembly and connection tool rest 9; Flexible hinge 10 connects sensor 13.Position sensor 13 can be used for detecting the displacement situation of flexible hinge.This displacement is the displacement of diamond cutter.
Spring(-supported) mount 1 in the above-mentioned cutter holder assembly is fixed on the front end of framework 11 through several screws 7, has inner bolt hole on the spring(-supported) mount 1, and spring spool 5 wherein is housed, and spring 6 is installed in the spring spool 5, and the inner tube wall of spring spool 5 is to the spring axial location; One end of spring 6 contacts with spring spool 5 endoporus bottom, and its other end contacts with flexible hinge 10.Clamp ring 2 also is equipped with at the external screw thread place of above-mentioned spring spool 5, spring pressure regulate suitable after, through clamp ring with spring spool 5 and spring(-supported) mount 1 locking and locking; Flexible hinge 10 connects tool rest 9 through screw 8, and diamond cutter 3 is fixed on the tool rest 9 through screw 4.
The sheet spring that wind spring that above-mentioned spring 6 is steel wire coilings or steel plate are made.Can come the pressure that imposes on flexible hinge of regulating spring through rotating missile spring sleeve 5.
Through hole is arranged at the bottom of above-mentioned spring spool 5, is contained in to let diamond cutter 3 pass on the spring(-supported) mount.
There is the through hole of several symmetrical distributions above-mentioned spring spool 5 ends, and the boss that is used on the special adjustment means inserts.
Above-mentioned flexible hinge 10 is symmetrically distributed with respect to the axis of piezoelectric ceramics 12, on one side a pair of, totally two pairs, be " worker " font layout.Cadre's wider width of flexible hinge, and the hinge width is narrower.Each two end of doing is the hinge position.Therefore the stressed flexural deformation of material concentrates on narrower hinge, and a cadre does not have distortion.The profile at hinge position is that the circular arc of symmetry is excessive, concentrates to avoid stress.
Above-mentioned piezoelectric ceramic actuator can change voice coil motor into as driver.
The utility model has the following advantages and beneficial effect owing to adopt above technical scheme:
1) is installed on the knife rest of machining tool through the overall fixed of the fixing hole on the framework said sharp knife servomechanism.Load onto diamond cutter.Through pre-stressed bolt adjustment prestressing force;
2) rotate said spring spool,, make the radially generation displacement of spring spool, and make camber of spring through screw thread on the spring spool external diameter.Regulating spring imposes on the pressure of two flexible hinges in front, and the rigidity of flexible hinge is changed.There is the through hole of several symmetrical distributions the spring spool end, and the boss that is used on the special adjustment means inserts, and forms the stressed strong point, so that the rotating missile spring sleeve;
3) put in place when spring spool rotation,,, become flexible preventing the locking position of spring spool and framework through clamp ring.
4) utilize and to be installed in framework upper spring frame the front two flexible hinges of sharp knife servomechanism are applied spring force, to change the self-stiffness of flexible hinge.Thereby change the parameters such as intrinsic frequency of sharp knife servomechanism.
5) utilize the changing of position of spring(-supported) mount upper spring sleeve and spring(-supported) mount, the deflection of regulating spring sleeve inner spring changes the pressure that spring imposes on flexible hinge, to realize the adjustment of sharp knife servomechanism rigidity.
Description of drawings
Fig. 1 is the utility model schematic representation of apparatus.
Wherein: 1 spring(-supported) mount, 2 clamp rings, 3 diamond cutters, 4 screws, 5 spring spools, 6 springs, 7 screws, 8 screws, 9 tool rests, 10 flexible hinges, 11 frameworks, 12 piezoelectric ceramics, 13 sensors, 14 pre-stressed bolts.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description further:
On a block of metal, cut out framework 11 and flexible hinge 10; On the position, axis of framework 11; Piezoelectric ceramics 12 is installed between the back rest and flexible hinge 10 of framework 11; The other end of flexible hinge 10 connects tool rest 9, prestressed bolt 14 and connect the other end of piezoelectric ceramics 12 on the back rest of framework 11; Can regulate prestressing force through pre-stressed bolt 14.The front end of framework 11 is installed cutter holder assembly, and diamond cutter 3 is supported by cutter holder assembly and connection tool rest 9; Flexible hinge 10 connects sensor 13.Position sensor 13 can be used for detecting the displacement situation of flexible hinge.This displacement is the displacement of diamond cutter.
Spring(-supported) mount 1 in the above-mentioned cutter holder assembly is fixed on the front end of framework 11 through several screws 7, has inner bolt hole on the spring(-supported) mount 1, and spring spool 5 wherein is housed, and spring 6 is installed in the spring spool 5, and the inner tube wall of spring spool 5 is to the spring axial location; One end of spring 6 contacts with spring spool 5 endoporus bottom, and its other end contacts with flexible hinge 10.Clamp ring 2 also is equipped with at the external screw thread place of above-mentioned spring spool 5, spring pressure regulate suitable after, through clamp ring with spring spool 5 and spring(-supported) mount 1 locking and locking; Flexible hinge 10 connects tool rest 9 through screw 8, and diamond cutter 3 is fixed on the tool rest 9 through screw 4.
The sheet spring that wind spring that above-mentioned spring 6 is steel wire coilings or steel plate are made.Can come the pressure that imposes on flexible hinge of regulating spring through rotating missile spring sleeve 5.
Through hole is arranged at the bottom of above-mentioned spring spool 5, is contained in to let diamond cutter 3 pass on the spring(-supported) mount.
There is the through hole of several symmetrical distributions above-mentioned spring spool 5 ends, and the boss that is used on the special adjustment means inserts.
Above-mentioned flexible hinge 10 is symmetrically distributed with respect to the axis of piezoelectric ceramics 12, on one side a pair of, totally two pairs, be " worker " font layout.Cadre's wider width of flexible hinge, and the hinge width is narrower.Each two end of doing is the hinge position.Therefore the stressed flexural deformation of material concentrates on narrower hinge, and a cadre does not have distortion.The profile at hinge position is that the circular arc of symmetry is excessive, concentrates to avoid stress.
Above-mentioned piezoelectric ceramic actuator can change voice coil motor into as driver.
Claims (6)
1. adjustable sharp knife servomechanism of rigidity; It is characterized in that: on a block of metal, cut out framework (11) and flexible hinge (10); On the position, axis of framework (11); Piezoelectric ceramics (12) is installed between the back rest and flexible hinge (10) of framework (11), and the other end of flexible hinge (10) connects tool rest (9), prestressed bolt (14) and connect the other end of piezoelectric ceramics (12) on the back rest of framework (11); The front end of framework (11) is installed cutter holder assembly, and diamond cutter (3) is supported by cutter holder assembly and connection tool rest (9); Flexible hinge (10) connects sensor (13).
2. the adjustable sharp knife servomechanism of rigidity according to claim 1 is characterized in that: above-mentioned flexible hinge (10) is symmetrically distributed with respect to the axis of piezoelectric ceramics (12), on one side a pair of, totally two pairs, be " worker " font layout; Cadre's wider width of flexible hinge, and the hinge width is narrower, each two end of doing is the hinge position, the profile at hinge position is that the circular arc of symmetry is excessive.
3. the adjustable sharp knife servomechanism of rigidity according to claim 1; It is characterized in that: the spring(-supported) mount in the above-mentioned cutter holder assembly (1) is fixed on the front end of framework (11) through several screws (7); Spring(-supported) mount has inner bolt hole on (1); Spring spool (5) wherein is housed, and spring (6) is installed in the spring spool (5), and the inner tube wall of spring spool (5) is to the spring axial location; One end of spring (6) contacts with spring spool (5) endoporus bottom, and its other end contacts with flexible hinge (10); Clamp ring (2) also is equipped with at the external screw thread place of above-mentioned spring spool (5); Flexible hinge (10) connects tool rest (9) through screw (8), and diamond cutter (3) is fixed on the tool rest (9) through screw (4).
4. the adjustable sharp knife servomechanism of rigidity according to claim 3 is characterized in that: above-mentioned spring (6) is the wind spring of steel wire coiling or the sheet spring that steel plate is made.
5. the adjustable sharp knife servomechanism of rigidity according to claim 3 is characterized in that: through hole is arranged at the bottom of above-mentioned spring spool (5), and diamond cutter (3) passes said through hole.
6. the adjustable sharp knife servomechanism of rigidity according to claim 3 is characterized in that: there is the through hole of several symmetrical distributions above-mentioned spring spool (5) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200784551U CN202438872U (en) | 2012-03-05 | 2012-03-05 | Sharp knife server with adjustable rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200784551U CN202438872U (en) | 2012-03-05 | 2012-03-05 | Sharp knife server with adjustable rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438872U true CN202438872U (en) | 2012-09-19 |
Family
ID=46820327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200784551U Expired - Fee Related CN202438872U (en) | 2012-03-05 | 2012-03-05 | Sharp knife server with adjustable rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438872U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528522A (en) * | 2012-03-05 | 2012-07-04 | 广东工业大学 | Fast tool servo device with adjustable rigidity |
| CN106891306A (en) * | 2017-04-25 | 2017-06-27 | 西安理工大学 | Magnetic auxiliary excitation precision actuation workbench based on variation rigidity flexible structure |
| CN111546087A (en) * | 2020-05-06 | 2020-08-18 | 大连民族大学 | Piezoelectric ceramic driven micro-feeding tool rest |
-
2012
- 2012-03-05 CN CN2012200784551U patent/CN202438872U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528522A (en) * | 2012-03-05 | 2012-07-04 | 广东工业大学 | Fast tool servo device with adjustable rigidity |
| CN102528522B (en) * | 2012-03-05 | 2014-02-12 | 广东工业大学 | Fast tool servo device with adjustable rigidity |
| CN106891306A (en) * | 2017-04-25 | 2017-06-27 | 西安理工大学 | Magnetic auxiliary excitation precision actuation workbench based on variation rigidity flexible structure |
| CN111546087A (en) * | 2020-05-06 | 2020-08-18 | 大连民族大学 | Piezoelectric ceramic driven micro-feeding tool rest |
| CN111546087B (en) * | 2020-05-06 | 2021-09-07 | 大连民族大学 | Piezoelectric ceramic driven micro-feeding tool rest |
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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: 20120919 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |