CN211413668U - Two-degree-of-freedom servo tool rest with large-stroke high-frequency response - Google Patents
Two-degree-of-freedom servo tool rest with large-stroke high-frequency response Download PDFInfo
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- CN211413668U CN211413668U CN201921968766.3U CN201921968766U CN211413668U CN 211413668 U CN211413668 U CN 211413668U CN 201921968766 U CN201921968766 U CN 201921968766U CN 211413668 U CN211413668 U CN 211413668U
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Abstract
The utility model discloses a two-degree-of-freedom servo knife rest with large-stroke high-frequency response, which is characterized in that first piezoelectric ceramics and third piezoelectric ceramics are symmetrical along the center of a tool mounting rack and are used for driving the tool mounting rack to move along the X direction, second piezoelectric ceramics and fourth piezoelectric ceramics are symmetrical along the center of the tool mounting rack and are used for driving the tool mounting rack to move along the Y direction, an X positive displacement amplification mechanism is arranged between the first piezoelectric ceramics and a Y right decoupling mechanism, an X negative displacement amplification mechanism is arranged between the third piezoelectric ceramics and the Y left decoupling mechanism, a Y positive displacement amplification mechanism is arranged between the second piezoelectric ceramics and the X forward decoupling mechanism, and a Y negative displacement amplification mechanism is arranged between the fourth piezoelectric ceramics and the X backward decoupling mechanism; the tool mounting frame has the advantages that the tool mounted on the tool mounting frame has high frequency response and large stroke, the surface processing of high-precision optical parts can be met, the parts can be processed in a large size, and the tool mounting frame is wide in application range.
Description
Technical Field
The utility model relates to a servo knife rest for curved surface processing especially relates to a two-degree-of-freedom servo knife rest with big stroke high frequency response.
Background
With the rapid development of modern optoelectronic technologies, optoelectronic devices have been developed toward more miniaturization, lightness and arraying. The optical element is a vital part in a photoelectronic instrument, and because the surface shape of the free curved surface of the optical part is complex and the precision requirement is very high, the traditional processing method has low processing efficiency and poor processing precision and is difficult to meet the technical index requirement. In order to adapt to the rapid development of the photoelectronic technology and manufacture optical elements meeting the technical index requirements, researchers at home and abroad improve the feed mode of turning, and a fast-cutting servo turning technology is developed based on a servo tool rest structure. The existing servo tool rests mainly comprise two types, one type is that the output frequency of a tool is high, high-precision surface machining can be realized, but the output displacement of the tool is small, the range of the machining size of a part is small, and the universality is poor; the other method is to realize large-stroke processing (namely, large output displacement) of the tool, but the frequency response is low, and high-precision surface processing cannot be realized.
Disclosure of Invention
The utility model aims to solve the technical problem that a two-degree-of-freedom servo knife rest is provided, it makes the cutter have high frequency response, big stroke, can satisfy the optical part's of high accuracy surface machining, has great workable size to the part again, and its application scope is wider.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a two-degree-of-freedom servo tool rest with a large-stroke high-frequency response comprises a rack, a tool mounting rack, a first piezoelectric ceramic mounting seat, a second piezoelectric ceramic mounting seat, a third piezoelectric ceramic mounting seat and a fourth piezoelectric ceramic mounting seat, wherein first piezoelectric ceramic is arranged in the first piezoelectric ceramic mounting seat, second piezoelectric ceramic is arranged in the second piezoelectric ceramic mounting seat, third piezoelectric ceramic is arranged in the third piezoelectric ceramic mounting seat, fourth piezoelectric ceramic is arranged in the fourth piezoelectric ceramic mounting seat, the first piezoelectric ceramic and the third piezoelectric ceramic are symmetrical along the center of the tool mounting rack and are used for driving the tool mounting rack to move along the X direction, the second piezoelectric ceramic and the fourth piezoelectric ceramic are symmetrical along the center of the tool mounting rack and are used for driving the tool mounting rack to move along the Y direction, the left side and the right side of the cutter mounting rack are connected with an X left pull rod and an X right pull rod through flexible hinges, the end part of the X right pull rod is connected with a Y right decoupling mechanism vertical to the X right pull rod through a flexible hinge, the two ends of the Y right decoupling mechanism are respectively connected with the first piezoelectric ceramic mounting seat and the second piezoelectric ceramic mounting seat through flexible hinges, an X positive displacement amplifying mechanism is arranged between the first piezoelectric ceramic and the Y right decoupling mechanism, the end part of the X left pull rod is connected with a Y left decoupling mechanism vertical to the X left pull rod through a flexible hinge, the two ends of the Y left decoupling mechanism are respectively connected with the third piezoelectric ceramic mounting seat and the fourth piezoelectric ceramic mounting seat through flexible hinges, and an X negative displacement mechanism is arranged between the third piezoelectric ceramic and the Y left decoupling mechanism, the front and the rear sides of the cutter mounting rack are connected with a Y forward pull rod and a Y backward pull rod through flexible hinges, the end part of the Y-shaped forward pull rod is connected with an X-shaped forward decoupling mechanism vertical to the Y-shaped forward pull rod through a flexible hinge, two ends of the X forward decoupling mechanism are respectively connected with the second piezoelectric ceramic mounting seat and the third piezoelectric ceramic mounting seat through flexible hinges, a Y positive displacement amplifying mechanism is arranged between the second piezoelectric ceramic and the X forward decoupling mechanism, the end part of the Y backward pull rod is connected with an X backward decoupling mechanism vertical to the Y backward pull rod through a flexible hinge, two ends of the X-direction backward decoupling mechanism are respectively connected with the first piezoelectric ceramic mounting seat and the fourth piezoelectric ceramic mounting seat through flexible hinges, and a Y negative displacement amplification mechanism is arranged between the fourth piezoelectric ceramic and the X backward decoupling mechanism.
Furthermore, the Y right decoupling mechanism, the Y left decoupling mechanism, the X forward decoupling mechanism and the X backward decoupling mechanism are identical in structure and respectively comprise a connecting block and four connecting rods, the end parts of the four connecting rods are connected with the connecting block through flexible hinges, the four connecting rods are arranged on two sides of the connecting block in a pairwise parallel and symmetrical mode, the connecting block in the Y right decoupling mechanism is connected with the X right pull rod through the flexible hinges, the end parts of the connecting rods in the Y right decoupling mechanism are respectively connected with the first piezoelectric ceramic mounting seat and the second piezoelectric ceramic mounting seat of the corresponding ends of the connecting rods through the flexible hinges, the connecting block in the Y left decoupling mechanism is connected with the X left pull rod through the flexible hinges, and the end parts of the connecting rods in the Y left decoupling mechanism are respectively connected with the third piezoelectric ceramic mounting seat of the corresponding ends of the connecting rods through the flexible hinges, The connecting block in the X forward decoupling mechanism is connected with the second piezoelectric ceramic mounting seat and the third piezoelectric ceramic mounting seat at the corresponding ends of the connecting block in the X forward decoupling mechanism through flexible hinges respectively, the connecting block in the X backward decoupling mechanism is connected with the Y backward pulling rod through flexible hinges respectively, and the end part of the connecting rod in the X backward decoupling mechanism is connected with the first piezoelectric ceramic mounting seat and the fourth piezoelectric ceramic mounting seat at the corresponding ends of the connecting block through flexible hinges respectively.
Furthermore, the structures of the X positive displacement amplifying mechanism, the X negative displacement amplifying mechanism, the Y positive displacement amplifying mechanism and the Y negative displacement amplifying mechanism are the same, and the X positive displacement amplifying mechanism, the X negative displacement amplifying mechanism, the Y positive displacement amplifying mechanism and the Y negative displacement amplifying mechanism respectively comprise a primary displacement amplifying mechanism and a secondary displacement amplifying mechanism, the primary displacement amplifying mechanism and the secondary displacement amplifying mechanism are both connected with the frame through flexible hinges, the primary displacement amplifying mechanism and the secondary displacement amplifying mechanism are connected through flexible hinges, the primary displacement amplifying mechanism in the X positive displacement amplifying mechanism is connected with the first piezoelectric ceramics through flexible hinges, the secondary displacement amplifying mechanism in the X positive displacement amplifying mechanism is connected with the Y right decoupling mechanism through flexible hinges, and the primary displacement amplifying mechanism in the X negative displacement amplifying mechanism is connected with the third piezoelectric ceramics through flexible hinges, the second-stage displacement amplification mechanism in the X negative displacement amplification mechanism is connected with the Y leftward decoupling mechanism through a flexible hinge, the first-stage displacement amplification mechanism in the Y positive displacement amplification mechanism is connected with the second piezoelectric ceramic through a flexible hinge, the second-stage displacement amplification mechanism in the Y positive displacement amplification mechanism is connected with the X forward decoupling mechanism through a flexible hinge, the first-stage displacement amplification mechanism in the Y negative displacement amplification mechanism is connected with the fourth piezoelectric ceramic through a flexible hinge, and the second-stage displacement amplification mechanism in the Y negative displacement amplification mechanism is connected with the X backward decoupling mechanism through a flexible hinge.
Furthermore, the primary displacement amplification mechanism is a first displacement driving block, the secondary displacement amplification mechanism comprises a second displacement driving block and a displacement connecting block, one end of the first displacement driving block is connected with the rack through a flexible hinge, the other end of the first displacement driving block is connected with one end of the second displacement driving block through a flexible hinge, the two ends of the first displacement driving block and the second displacement driving block are on the same side, the first displacement driving block is connected with the first piezoelectric ceramic, the second piezoelectric ceramic, the third piezoelectric ceramic or the fourth piezoelectric ceramic through a flexible hinge, the other end of the second displacement driving block is connected with the Y right decoupling mechanism, the Y left decoupling mechanism, the X forward decoupling mechanism or the X backward decoupling mechanism through a flexible hinge, one end of the displacement connecting block is connected with the rack through a flexible hinge, the other end of the displacement connecting block is connected with the second displacement driving block through a flexible hinge.
Compared with the prior art, the utility model has the advantages that the feeding and retracting motions of the cutter mounting frame in the X and Y directions are driven by the piezoelectric ceramics, and the secondary displacement amplification in two directions is realized by the four displacement amplification mechanisms, so that the cutter mounted on the cutter mounting frame has high frequency response and large stroke, the surface processing of high-precision optical parts can be met, the micron-sized parts are processed with larger processing size, and the application range is wider; in addition, because this servo knife rest is central symmetry along the cutter mounting bracket and sets up for whole simple structure and compactness have reduced the processing degree of difficulty.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a schematic structural diagram of the X forward displacement amplifying mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in the figure, the two-degree-of-freedom servo tool rest with the large-stroke high-frequency response comprises a rack 1, a tool mounting rack 2, a first piezoelectric ceramic mounting seat 3, a second piezoelectric ceramic mounting seat 4, a third piezoelectric ceramic mounting seat 5 and a fourth piezoelectric ceramic mounting seat 6, wherein first piezoelectric ceramic 31 is arranged in the first piezoelectric ceramic mounting seat 3, second piezoelectric ceramic 41 is arranged in the second piezoelectric ceramic mounting seat 4, third piezoelectric ceramic 51 is arranged in the third piezoelectric ceramic mounting seat 5, fourth piezoelectric ceramic 61 is arranged in the fourth piezoelectric ceramic mounting seat 6, the first piezoelectric ceramic 31 and the third piezoelectric ceramic 51 are symmetrical along the center of the tool mounting rack 2 and are used for driving the tool mounting rack 2 to move along the X direction, the second piezoelectric ceramic 41 and the fourth piezoelectric ceramic 61 are symmetrical along the center of the tool mounting rack 2 and are used for driving the tool mounting rack 2 to move along the Y direction, a left side, a right side, a left side, a, The right two sides are connected with an X left pull rod 21 and an X right pull rod 22 through flexible hinges, the end part of the X right pull rod 22 is connected with a Y right decoupling mechanism 7 vertical to the X right pull rod through a flexible hinge, the Y right decoupling mechanism 7 comprises a connecting block 71 and four connecting rods 72, the end parts of the four connecting rods 72 are all connected with the connecting block 71 through flexible hinges, the four connecting rods 72 are arranged on the two sides of the connecting block 71 in parallel and symmetrically in pairs, the connecting block 71 is connected with the X right pull rod 22 through a flexible hinge, the end parts of the connecting rods 72 are respectively connected with a first piezoelectric ceramic mounting seat 3 and a second piezoelectric ceramic mounting seat 4 at the corresponding ends through flexible hinges, an X forward displacement amplifying mechanism 8 is arranged between the first piezoelectric ceramic 31 and the Y right decoupling mechanism 7, the end part of the X left pull rod 21 is connected with a Y left decoupling mechanism 9 vertical to the X left pull rod through, the structure of the Y leftward decoupling mechanism 9 is the same as that of the Y rightward decoupling mechanism 7, a connecting block in the Y leftward decoupling mechanism 9 is connected with an X leftward pull rod 21 through a flexible hinge, the end part of a connecting rod in the Y leftward decoupling mechanism 9 is respectively connected with a third piezoelectric ceramic mounting seat 5 and a fourth piezoelectric ceramic mounting seat 6 at the corresponding ends through flexible hinges, an X negative displacement amplification mechanism 10 is arranged between a third piezoelectric ceramic 51 and the Y leftward decoupling mechanism 9, the front side and the rear side of the cutter mounting frame 2 are connected with a Y forward pull rod 23 and a Y backward pull rod 24 through flexible hinges, the end part of the Y forward pull rod 23 is connected with an X forward decoupling mechanism 11 perpendicular to the Y forward pull rod through a flexible hinge, the structure of the X forward decoupling mechanism 11 is the same as that of the Y rightward decoupling mechanism 7, the connecting block in the X forward decoupling mechanism 11 is connected with the Y forward pull rod 23 through a flexible hinge, the end parts of the connecting rods in the X forward decoupling mechanism 11 are respectively connected with the second piezoelectric ceramic mounting seat 4 and the third piezoelectric ceramic mounting seat 5 at the corresponding ends through flexible hinges, a Y forward displacement amplifying mechanism 12 is arranged between the second piezoelectric ceramic 41 and the X forward decoupling mechanism 11, the end part of the Y backward pull rod 24 is connected with an X backward decoupling mechanism 13 which is vertical to the Y backward pull rod through a flexible hinge, the structure of the X backward decoupling mechanism 13 is the same as that of the Y rightward decoupling mechanism 7, the connecting block in the X backward decoupling mechanism 13 is connected with the Y backward pull rod 24 through a flexible hinge, the end parts of the connecting rods in the X backward decoupling mechanism 13 are respectively connected with the first piezoelectric ceramic mounting seats 3 at the corresponding ends through flexible hinges, and a Y negative displacement amplification mechanism 14 is arranged between the fourth piezoelectric ceramic 61 and the X backward decoupling mechanism 13.
In the above embodiment, the X forward displacement amplifying mechanism 8 includes a first displacement amplifying mechanism and a second displacement amplifying mechanism, the first displacement amplifying mechanism is a first displacement driving block 81, one end of the first displacement driving block 81 is connected to the frame 1 through a flexible hinge, the second displacement amplifying mechanism adopts a Scott-Russell mechanism, and specifically includes a second displacement driving block 82 and a displacement connecting block 83, the other end of the first displacement driving block 81 is connected to one end of the second displacement driving block 82 through a flexible hinge, the connecting point is denoted as a, the same side, the first displacement driving block 81 is connected to the first piezoelectric ceramic 31 through a flexible hinge, the other end of the second displacement driving block 82 is connected to the connecting block 71 in the Y right decoupling mechanism 7 through a flexible hinge, the connecting point is denoted as B, one end of the displacement connecting block 83 is connected to the frame 1 through a flexible hinge, and the connecting point is denoted as O, the other end of the displacement connecting block 83 is connected with the second displacement driving block 82 by a flexible hinge, and the connection point is marked as C, wherein: connection point A, B, C is located on the same line, and connection point C is located at the midpoint of line AB, and line OC has the same length as lines AC and BC.
The structures of the X negative displacement amplification mechanism 10, the Y positive displacement amplification mechanism 12 and the Y negative displacement amplification mechanism 14 are the same as the structure of the X positive displacement amplification mechanism 8, a primary displacement amplification mechanism in the X negative displacement amplification mechanism 10 is connected with the third piezoelectric ceramic 51 through a flexible hinge, a secondary displacement amplification mechanism in the X negative displacement amplification mechanism 10 is connected with a connecting block in the Y leftward decoupling mechanism 9 through a flexible hinge, a primary displacement amplification mechanism in the Y positive displacement amplification mechanism 12 is connected with the second piezoelectric ceramic 41 through a flexible hinge, a secondary displacement amplification mechanism in the Y positive displacement amplification mechanism 12 is connected with a connecting block in the X forward decoupling mechanism 11 through a flexible hinge, a primary displacement amplification mechanism in the Y negative displacement amplification mechanism 14 is connected with the fourth piezoelectric ceramic 61 through a flexible hinge, a secondary displacement amplification mechanism in the Y negative displacement amplification mechanism 14 is connected with a connecting block in the X backward decoupling mechanism 13 Connected by a flexible hinge.
In the above embodiment, the two-degree-of-freedom servo tool post is suitable for micron-scale machining of a part, and the working principle thereof is as follows (the working principle is explained in the position direction shown in fig. 2):
when the cutter needs to move in the X positive direction, a positive voltage is applied to the first piezoelectric ceramic 31, the first piezoelectric ceramic 31 extends, the same reverse voltage is applied to the third piezoelectric ceramic 51, the third piezoelectric ceramic 51 shortens the same displacement, the first piezoelectric ceramic 31 extends to push the first displacement driving block 81 in the X positive displacement amplification mechanism 8 to rotate clockwise, the first displacement driving block 81 pulls the second displacement driving block 82 to rotate clockwise through a connection point A, the second displacement driving block 82 drives the Y right decoupling mechanism 7 and the X right pull rod 22 through a connection point B, the X right decoupling mechanism 7 decouples the X displacement, the X right pull rod 22 only moves rightwards (namely the X positive direction), meanwhile, the third piezoelectric ceramic 51 shortens to drive the first displacement driving block in the X negative displacement mechanism 10 to rotate, the first displacement driving block pushes the second displacement driving block to rotate anticlockwise, the second displacement driving block pushes the Y leftward decoupling mechanism 9 and the X leftward pull rod 21, the Y leftward decoupling mechanism 9 is used for decoupling the X-directional displacement, so that the X leftward pull rod 21 only moves rightwards (namely, the X forward direction), and a cutter is driven to move forwards along the X direction under the combined action of the X leftward pull rod 21 and the X rightward pull rod 22, so that the X-directional cutter feeding is realized; when the tool is retracted in the X direction, the voltage direction of the first piezoelectric ceramic 31 and the third piezoelectric ceramic 51 is changed; when the tool needs to be moved in the Y direction, the second piezoelectric ceramics 41 and the fourth piezoelectric ceramics 61 need only be applied with opposite voltages, and the principle is the same as the driving principle in the X direction.
The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.
Claims (4)
1. A two-degree-of-freedom servo tool rest with a large-stroke high-frequency response is characterized by comprising a frame, a tool mounting frame, a first piezoelectric ceramic mounting seat, a second piezoelectric ceramic mounting seat, a third piezoelectric ceramic mounting seat and a fourth piezoelectric ceramic mounting seat, wherein first piezoelectric ceramic is arranged in the first piezoelectric ceramic mounting seat, second piezoelectric ceramic is arranged in the second piezoelectric ceramic mounting seat, third piezoelectric ceramic is arranged in the third piezoelectric ceramic mounting seat, fourth piezoelectric ceramic is arranged in the fourth piezoelectric ceramic mounting seat, the first piezoelectric ceramic and the third piezoelectric ceramic are symmetrical along the center of the tool mounting frame and are used for driving the tool mounting frame to move along the X direction, the second piezoelectric ceramic and the fourth piezoelectric ceramic are symmetrical along the center of the tool mounting frame and are used for driving the tool mounting frame to move along the Y direction, the left side and the right side of the cutter mounting rack are connected with an X left pull rod and an X right pull rod through flexible hinges, the end part of the X right pull rod is connected with a Y right decoupling mechanism vertical to the X right pull rod through a flexible hinge, the two ends of the Y right decoupling mechanism are respectively connected with the first piezoelectric ceramic mounting seat and the second piezoelectric ceramic mounting seat through flexible hinges, an X positive displacement amplifying mechanism is arranged between the first piezoelectric ceramic and the Y right decoupling mechanism, the end part of the X left pull rod is connected with a Y left decoupling mechanism vertical to the X left pull rod through a flexible hinge, the two ends of the Y left decoupling mechanism are respectively connected with the third piezoelectric ceramic mounting seat and the fourth piezoelectric ceramic mounting seat through flexible hinges, and an X negative displacement mechanism is arranged between the third piezoelectric ceramic and the Y left decoupling mechanism, the front and the rear sides of the cutter mounting rack are connected with a Y forward pull rod and a Y backward pull rod through flexible hinges, the end part of the Y-shaped forward pull rod is connected with an X-shaped forward decoupling mechanism vertical to the Y-shaped forward pull rod through a flexible hinge, two ends of the X forward decoupling mechanism are respectively connected with the second piezoelectric ceramic mounting seat and the third piezoelectric ceramic mounting seat through flexible hinges, a Y positive displacement amplifying mechanism is arranged between the second piezoelectric ceramic and the X forward decoupling mechanism, the end part of the Y backward pull rod is connected with an X backward decoupling mechanism vertical to the Y backward pull rod through a flexible hinge, two ends of the X-direction backward decoupling mechanism are respectively connected with the first piezoelectric ceramic mounting seat and the fourth piezoelectric ceramic mounting seat through flexible hinges, and a Y negative displacement amplification mechanism is arranged between the fourth piezoelectric ceramic and the X backward decoupling mechanism.
2. The two-degree-of-freedom servo tool rest with large stroke high frequency response of claim 1, wherein: the Y right decoupling mechanism, the Y left decoupling mechanism, the X forward decoupling mechanism and the X backward decoupling mechanism are identical in structure and respectively comprise a connecting block and four connecting rods, the end parts of the four connecting rods are connected with the connecting block through flexible hinges, the four connecting rods are arranged on two sides of the connecting block in a pairwise parallel and symmetrical mode, the connecting block in the Y right decoupling mechanism is connected with the X right pull rod through the flexible hinges, the end parts of the connecting rods in the Y right decoupling mechanism are respectively connected with a first piezoelectric ceramic mounting seat and a second piezoelectric ceramic mounting seat at the corresponding ends of the connecting rods through the flexible hinges, the connecting block in the Y left decoupling mechanism is connected with the X left pull rod through the flexible hinges, and the end parts of the connecting rods in the Y left decoupling mechanism are respectively connected with a third piezoelectric ceramic mounting seat at the corresponding ends of the connecting rods through the flexible hinges, The connecting block in the X forward decoupling mechanism is connected with the second piezoelectric ceramic mounting seat and the third piezoelectric ceramic mounting seat at the corresponding ends of the connecting block in the X forward decoupling mechanism through flexible hinges respectively, the connecting block in the X backward decoupling mechanism is connected with the Y backward pulling rod through flexible hinges respectively, and the end part of the connecting rod in the X backward decoupling mechanism is connected with the first piezoelectric ceramic mounting seat and the fourth piezoelectric ceramic mounting seat at the corresponding ends of the connecting block through flexible hinges respectively.
3. The two-degree-of-freedom servo tool rest with large stroke high frequency response of claim 1, wherein: the X positive displacement amplification mechanism, the X negative displacement amplification mechanism, the Y positive displacement amplification mechanism and the Y negative displacement amplification mechanism are all the same in structure and respectively comprise a primary displacement amplification mechanism and a secondary displacement amplification mechanism, the primary displacement amplification mechanism and the secondary displacement amplification mechanism are connected with the frame through flexible hinges, the primary displacement amplification mechanism and the secondary displacement amplification mechanism are connected through flexible hinges, the primary displacement amplification mechanism in the X positive displacement amplification mechanism is connected with the first piezoelectric ceramics through flexible hinges, the secondary displacement amplification mechanism in the X positive displacement amplification mechanism is connected with the Y right decoupling mechanism through flexible hinges, and the primary displacement amplification mechanism in the X negative displacement amplification mechanism is connected with the third piezoelectric ceramics through flexible hinges, the second-stage displacement amplification mechanism in the X negative displacement amplification mechanism is connected with the Y leftward decoupling mechanism through a flexible hinge, the first-stage displacement amplification mechanism in the Y positive displacement amplification mechanism is connected with the second piezoelectric ceramic through a flexible hinge, the second-stage displacement amplification mechanism in the Y positive displacement amplification mechanism is connected with the X forward decoupling mechanism through a flexible hinge, the first-stage displacement amplification mechanism in the Y negative displacement amplification mechanism is connected with the fourth piezoelectric ceramic through a flexible hinge, and the second-stage displacement amplification mechanism in the Y negative displacement amplification mechanism is connected with the X backward decoupling mechanism through a flexible hinge.
4. The two-degree-of-freedom servo tool post with large stroke high frequency response of claim 3, wherein: the first-stage displacement amplification mechanism is a first displacement driving block, the second-stage displacement amplification mechanism comprises a second displacement driving block and a displacement connecting block, one end of the first displacement driving block is connected with the rack through a flexible hinge, the other end of the first displacement driving block is connected with one end of the second displacement driving block through a flexible hinge, the first displacement driving block is on the same side as the rack, the first displacement driving block is connected with the first piezoelectric ceramic, the second piezoelectric ceramic, the third piezoelectric ceramic or the fourth piezoelectric ceramic through a flexible hinge, the other end of the second displacement driving block is connected with the Y right decoupling mechanism, the Y left decoupling mechanism, the X forward decoupling mechanism or the X backward decoupling mechanism through a flexible hinge, one end of the displacement connecting block is connected with the rack through a flexible hinge, the other end of the displacement connecting block is connected with the second displacement driving block through a flexible hinge.
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| CN201921968766.3U CN211413668U (en) | 2019-11-14 | 2019-11-14 | Two-degree-of-freedom servo tool rest with large-stroke high-frequency response |
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| CN201921968766.3U CN211413668U (en) | 2019-11-14 | 2019-11-14 | Two-degree-of-freedom servo tool rest with large-stroke high-frequency response |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919032A (en) * | 2019-11-14 | 2020-03-27 | 宁波大学 | Two-degree-of-freedom servo tool rest with large-stroke high-frequency response |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919032A (en) * | 2019-11-14 | 2020-03-27 | 宁波大学 | Two-degree-of-freedom servo tool rest with large-stroke high-frequency response |
| CN110919032B (en) * | 2019-11-14 | 2024-07-16 | 宁波大学 | Two-degree-of-freedom servo tool rest with large-stroke high-frequency response |
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