CN214412607U - Ultrasonic motor clamping and positioning device - Google Patents
Ultrasonic motor clamping and positioning device Download PDFInfo
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- CN214412607U CN214412607U CN202120298542.7U CN202120298542U CN214412607U CN 214412607 U CN214412607 U CN 214412607U CN 202120298542 U CN202120298542 U CN 202120298542U CN 214412607 U CN214412607 U CN 214412607U
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- ultrasonic motor
- positioning device
- flexible restraint
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Abstract
The utility model discloses an supersound motor centre gripping positioner belongs to the technical field of centre gripping. The method comprises the following steps: the base is used for supporting other parts; the Y-axis sliding assembly is arranged on the upper surface of the base along the Y-axis direction; the flexible restraint piece is arranged on the upper surface of the base and the motor base and is arranged between the Y-axis sliding assembly and the flexible restraint piece; the flexible restraint part is used for providing different pre-pressures for the ultrasonic motor, and the Y-axis sliding assembly converts the micro-vibration of the ultrasonic motor into macroscopic linear motion. The utility model discloses a rectilinear ultrasonic motor's high-frequency vibration comes to provide power for the active cell slider, has the output of great power to the locate function who has the high accuracy.
Description
Technical Field
The utility model belongs to the technical field of the centre gripping, it is very good to relate to an supersound motor centre gripping positioner.
Background
The linear ultrasonic motor is a new type micromotor, it utilizes inverse piezoelectric effect of piezoelectric element and ultrasonic vibration of elastic body, and utilizes the friction action between stator and rotor to convert the micro-amplitude vibration of elastic body into macroscopic linear motion of rotor so as to directly drive load. The novel high-precision positioning device has the advantages of compact structure, low speed, large torque, quick response, high positioning precision, electromagnetic compatibility and the like, and therefore has wide application prospects in the fields of aerospace, weaponry, precision driving and the like.
The clamping state of the linear ultrasonic motor stator is an important factor influencing the stability and the output efficiency of the linear ultrasonic motor stator. At present, linear ultrasonic motor clamping structures are various, if the linear ultrasonic motor clamping structures are not properly arranged, redundant movement and rotation can be generated, the normal operation of the motor cannot be guaranteed, meanwhile, the processing is time-consuming, the assembly is complex, and the performance effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a brand-new supersound motor centre gripping positioner, simple structure workable assembly has improved motor structure's stability, has optimized clamping device before to have the output of better power.
The utility model discloses a following technical scheme realizes: an ultrasonic motor clamp positioning device comprising:
the base is used for supporting other parts;
the Y-axis sliding assembly is arranged on the upper surface of the base along the Y-axis direction;
the flexible restraint piece is arranged on the upper surface of the base;
the motor base is arranged between the Y-axis sliding assembly and the flexible restraining part; the flexible restraint part is used for providing different pre-pressures for the ultrasonic motor, and the micro-vibration of the ultrasonic motor is converted into macroscopic linear motion through the Y-axis sliding group.
In a further embodiment of the method of the invention,
the flexible restraint includes:
the first bracket is vertically fixed on the base;
the flexible restraint frame is sleeved on the first support;
the connecting piece sequentially penetrates through the flexible restraint frame and the first support; the connecting piece is connected with the flexible restraint frame and the first support through internal threads and external threads.
In a further embodiment of the method of the invention,
the Y-axis slide assembly includes:
the second bracket is vertically fixed on the base;
the fixing block is fixed on the second bracket;
and the sliding rail is in interference fit with the fixed block.
In a further embodiment of the method of the invention,
further comprising:
eight piezoelectric ceramic pieces; the piezoelectric ceramic pieces are respectively attached to four vertex angles on two sides of the motor base.
In a further embodiment of the method of the invention,
the connecting piece is a bolt which is provided with a plurality of connecting holes,
further comprising: and the compression spring is sleeved on the stud of the bolt and positioned between the flexible constraint frame and the nut.
In a further embodiment of the method of the invention,
the flexible restraint frame is provided with a reserved space on the side surface close to the motor base, and the reserved space is used for accommodating a driving foot on the motor base and providing a vibration space for the driving foot;
the driving feet are simultaneously connected with the Y-axis sliding component.
In a further embodiment of the method of the invention,
further comprising:
the X-axis sliding assembly is arranged on the base; for providing sliding support and guidance to the flexible restraint.
In a further embodiment of the method of the invention,
the X-axis sliding assembly includes:
the sliding block is fixed on the flexible restraint piece; the bottom surface of the sliding block is provided with a sliding groove
The guide rail is arranged on the base; the guide rail and the sliding groove are in interference fit;
the width of the sliding groove is larger than that of the guide rail.
The utility model has the advantages that: the utility model discloses a rectilinear ultrasonic motor's high-frequency vibration comes to provide power for the active cell slider, has the output of great power to the locate function who has the high accuracy.
The utility model discloses a theory of operation: four piezoelectric ceramic pieces are respectively pasted on two side surfaces of a linear ultrasonic motor substrate, the piezoelectric ceramic pieces are electrified and are applied with voltage of a certain excitation signal, the piezoelectric ceramic pieces can drive the substrate to do stretching vibration, and the driving feet can generate micro-amplitude vibration of an elliptic motion track in a reserved space. The driving foot is simultaneously connected with a sliding rail in the Y-axis sliding assembly, a certain prepressing force is applied through the prepressing device, and the linear ultrasonic motor can convert microscopic vibration into macroscopic linear motion through contact friction force. Because of the contact friction force, the device can be powered off and self-locked, has larger thrust and has higher positioning precision.
Drawings
Fig. 1 is a schematic structural diagram of an ultrasonic motor clamping and positioning device.
Fig. 2 is a front view of an ultrasonic motor clamping and positioning device.
Fig. 3 is a top view of an ultrasonic motor clamp positioning device.
Fig. 4 is a schematic structural view of a flexible restraint frame.
Fig. 5 is a schematic structural diagram of a motor base.
Each of fig. 1 to 5 is labeled as: the device comprises a base 1, a motor base 2, a first support 3, a fixed block 4, a sliding rail 5, a second support 6, a flexible restraining frame 7, a bolt 8, a compression spring 9, a piezoelectric ceramic piece 10, a driving foot 11, a reserved space 12, a sliding block 13 and a guide rail 14.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The utility model discloses the purpose that will reach is: the output force of the ultrasonic motor is increased, and meanwhile, the positioning is accurate.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an ultrasonic motor clamping and positioning device comprises: the device comprises a base 1, a motor base 2, a first support 3, a fixed block 4, a sliding rail 5, a second support 6, a flexible restraining frame 7, a bolt 8, a compression spring 9, a piezoelectric ceramic piece 10, a driving foot 11, a reserved space 12, a sliding block 13 and a guide rail 14.
As shown in fig. 1, the base 1 is used to support various components. For convenience of description of the present embodiment, the length direction of the base 1 is defined as the X-axis direction, and the width direction is defined as the Y-axis direction.
The upper surface of base 1 is provided with Y axle slip subassembly and flexible restraint piece, be provided with motor base 2 between Y axle slip subassembly and the flexible restraint piece. Wherein the Y-axis sliding assembly is arranged along the Y-axis direction. The flexible restraint part is used for providing different pre-pressures for the ultrasonic motor, and the Y-axis sliding assembly converts the micro-vibration of the ultrasonic motor into macroscopic linear motion.
Preferably, the flexible restraint comprises: first support 3, first support 3 is vertical to be fixed on the base 1, for the convenience of fixing and use, L type support is chooseed for use to first support 3, through bolt 8 or welded fastening. Further comprising: and the flexible constraint frame 7 is sleeved on the first support 3, and in order not to influence the movement of the flexible constraint frame 7 in the X-axis direction, a bottom plate of the L-shaped support and the Y-axis sliding assembly are arranged in a back-to-back manner. The flexible constraint frame 7 is used for providing prestress for the motor base 2, and therefore a connecting piece is further arranged and penetrates through the flexible constraint frame 7 and the first support 3 in sequence; the connecting piece is connected with the flexible restraint frame 7 and the first bracket 3 through internal and external threads.
Preferably, in this embodiment, the connecting piece is bolt 8, and bolt 8 includes the screw thread post, fixes nut on a terminal surface of screw thread post, in order to adjust and control the position at flexible restraint frame place, be convenient for kick-back and compression, the cover is equipped with compression spring 9 on the screw thread post, compression spring 9 is located between flexible restraint frame 7 and the nut.
In this embodiment, the flexible constraint frame 7 is a movable frame with an open top and an open bottom.
Preferably, the specific structure of the Y-axis sliding assembly is as follows: the fixing device comprises a first support 3 fixed on a base 1, and in order to facilitate fixing and using, an L-shaped support is selected as a second support 6 and is fixed through a bolt 8 or welding. In order not to influence normal operation when fixed, the bottom plate of L type support with Y axle sliding assembly is for setting up dorsad. The Y-axis slide assembly further comprises: fix fixed block 4 on L type support inside wall, the spout has been seted up to the inboard of fixed block 4, the inside of spout is provided with slide rail 5.
The connection relation between the motor base 2 and the Y-axis sliding assembly is as follows: first, piezoelectric ceramic plates 10 are attached to four corners of two side surfaces of the motor base 2. The vertex angle department of motor base 2 is provided with integrated into one piece's drive foot 11, the slide rail 5 fixed connection in one end and the Y axle sliding component of drive foot 11.
In order to realize the transmission connection between the motor base 2 and the flexible restraint frame 7, a reserved space 12 corresponding to the driving feet 11 is arranged on one side surface of the flexible restraint frame 7 (moving frame) close to the motor base 2, and the corresponding relation includes the position relation and the number. The reserved space 12 is used for accommodating the driving foot 11 on the motor base 2 and providing a vibration space for the driving foot 11, namely, a clamping groove for the driving foot to vibrate and displace in a short distance is formed on one side of the flexible constraint frame 7.
In the above structure, the flexible restraint frame 7 will move in a short distance in the X-axis direction under the action of the adjustment of the bolt 8 or the ultrasonic motor, and in order to increase the stability of the mechanism, the present embodiment further includes an X-axis sliding assembly, which is disposed on the base 1 and is used for providing a sliding supporting force and guiding for the flexible restraint frame 7.
Preferably, the X-axis sliding assembly includes: a slide 13 and a guide rail 14. The sliding block 13 is fixed at the bottom of the flexible restraint frame 7 (movable frame). The bottom surface of the sliding block 13 is provided with a sliding chute; a guide rail 14 mounted on the base 1; the guide rail 14 and the sliding groove are in interference fit; the width of the runner is greater than the width of the guide rail 14.
The working principle of the utility model is as follows: four piezoelectric ceramic pieces 10 are respectively pasted on two side surfaces of a linear ultrasonic motor substrate, the piezoelectric ceramic pieces 10 are electrified, a certain excitation signal voltage is applied, the piezoelectric ceramic pieces 10 drive the substrate to do stretching vibration, and the driving feet 11 can generate micro-amplitude vibration of an elliptic motion track in the reserved space 12. The driving foot 11 is connected with the slide rail 5 in the Y-axis slide assembly, a certain pre-pressure is applied through the pre-pressure device, and the linear ultrasonic motor converts the micro vibration into the macro linear motion through the contact friction force. Because of the contact friction force, the device can be powered off and self-locked, has larger thrust and has higher positioning precision.
In the process, the pre-pressure is set by adjusting the position of the bolt 8 sleeved with the compression spring 9 to provide different pre-pressures for the ultrasonic motor. The mover slider 13 is powered by the high-frequency vibration of the linear ultrasonic motor, so that the linear ultrasonic motor has a large force output and a high-precision positioning function.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An ultrasonic motor clamping and positioning device, comprising:
the base is used for supporting other parts;
the Y-axis sliding assembly is arranged on the upper surface of the base along the Y-axis direction;
the flexible restraint piece is arranged on the upper surface of the base;
the motor base is arranged between the Y-axis sliding assembly and the flexible restraining part; the flexible restraint part is used for providing different pre-pressures for the ultrasonic motor, and the micro-vibration of the ultrasonic motor is converted into macroscopic linear motion through the Y-axis sliding group.
2. An ultrasonic motor clamp positioning device according to claim 1,
the flexible restraint includes:
the first bracket is vertically fixed on the base;
the flexible restraint frame is sleeved on the first support;
the connecting piece sequentially penetrates through the flexible restraint frame and the first support; the connecting piece is connected with the flexible restraint frame and the first support through internal threads and external threads.
3. An ultrasonic motor clamp positioning device according to claim 1,
the Y-axis slide assembly includes:
the second bracket is vertically fixed on the base;
the fixing block is fixed on the second bracket;
and the sliding rail is in interference fit with the fixed block.
4. An ultrasonic motor clamp positioning device according to claim 1,
further comprising:
eight piezoelectric ceramic pieces; the piezoelectric ceramic pieces are respectively attached to four vertex angles on two sides of the motor base.
5. An ultrasonic motor clamp positioning device according to claim 2,
the connecting piece is a bolt which is provided with a plurality of connecting holes,
further comprising: and the compression spring is sleeved on the threaded column of the bolt and positioned between the flexible constraint frame and the nut.
6. An ultrasonic motor clamp positioning device according to claim 2,
the flexible restraint frame is provided with a reserved space on the side surface close to the motor base, and the reserved space is used for accommodating a driving foot on the motor base and providing a vibration space for the driving foot;
the driving feet are simultaneously connected with the Y-axis sliding component.
7. An ultrasonic motor clamp positioning device according to claim 1,
further comprising:
the X-axis sliding assembly is arranged on the base; for providing sliding support and guidance to the flexible restraint.
8. An ultrasonic motor clamp positioning device according to claim 7,
the X-axis sliding assembly includes:
the sliding block is fixed on the flexible restraint piece; the bottom surface of the sliding block is provided with a sliding chute;
the guide rail is arranged on the base; the guide rail and the sliding groove are in interference fit;
the width of the sliding groove is larger than that of the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120298542.7U CN214412607U (en) | 2021-02-02 | 2021-02-02 | Ultrasonic motor clamping and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120298542.7U CN214412607U (en) | 2021-02-02 | 2021-02-02 | Ultrasonic motor clamping and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214412607U true CN214412607U (en) | 2021-10-15 |
Family
ID=78020277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120298542.7U Active CN214412607U (en) | 2021-02-02 | 2021-02-02 | Ultrasonic motor clamping and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214412607U (en) |
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2021
- 2021-02-02 CN CN202120298542.7U patent/CN214412607U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liheng Technology (Jiangsu) Co.,Ltd. Assignor: JINLING INSTITUTE OF TECHNOLOGY Contract record no.: X2022320000013 Denomination of utility model: A clamping and positioning device for ultrasonic motor Granted publication date: 20211015 License type: Common License Record date: 20220114 |
|
| EE01 | Entry into force of recordation of patent licensing contract |