A longitudinal-torsion composite ultrasonic toolholder processing system
By directly installing the longitudinal vibration source and torsional vibration source in the longitudinal torsion composite ultrasonic tool holder processing system, and using wireless modules to adjust the amplitude ratio, the problems of fixed longitudinal vibration and torsional vibration ratio and structural fatigue in the existing system are solved, and efficient and accurate processing effects are achieved.
Patent Information
- Application Number
- CN202411869392.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2044-12-18
AI Technical Summary
In the existing longitudinal torsion composite ultrasonic tool holder processing system, the ratio of longitudinal vibration to torsional vibration is fixed, making it difficult to cope with complex processing needs, and the chute structure is prone to structural fatigue and increase the risk of fracture.
A vertical torsion composite ultrasonic tool holder processing system including a tool body, a transducer, a longitudinal vibration source, a torsional vibration source and a wireless module are designed. By directly installing the longitudinal vibration source and a torsional vibration source from the tail end of the tool body, and the wireless module is used to automatically adjust the longitudinal torsional amplitude ratio.
It realizes efficient transmission and concentration of vibration energy, improves processing accuracy and efficiency, reduces system complexity and failure rate, and enhances structural stability and reliability.
Smart Images

Figure CN119319491B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ultrasonic vibration machining, and in particular to a longitudinal-torsion composite ultrasonic tool handle machining system. Background Art
[0002] The existing longitudinal-torsion composite ultrasonic toolholders generally add bevel grooves or spiral grooves at the amplitude transformer to convert part of the longitudinal vibration amplitude into torsional vibration. The ratio of longitudinal vibration to torsional vibration is fixed during processing, and the size can only be changed by adjusting the longitudinal vibration power. The torsional angle and amplitude are relatively limited, which makes it difficult to meet the complex ultrasonic processing requirements. At the same time, the presence of the bevel groove will reduce the fatigue of the ultrasonic toolholder structure under load, making it more prone to dark cracks and disconnection.
[0003] Chinese patent CN102294323A discloses a single excitation longitudinal-torsion composite vibration conversion device, including a first converter and a second converter, one end of the first converter and one end of the second converter are press-fitted by a mortise and tenon structure, and an axial fixing mechanism is also provided between the first converter and the second converter. It mainly converts longitudinal vibration into torsional vibration in the part due to structural changes through a conversion similar to the mortise and tenon structure.
[0004] In the above scheme, although the longitudinal vibration power can be adjusted, the ability to adjust the torsional vibration alone is limited because the generation of torsional vibration depends on the conversion of longitudinal vibration. As a result, the system cannot achieve the best working state when it is necessary to independently control torsional vibration and longitudinal vibration to optimize specific processing tasks. At the same time, due to the limitations of the physical structure, the torsion angle and amplitude are relatively limited. This limits its effectiveness in processing some processing tasks that require large torque or large vibration.
[0005] Chinese patent CN104014836A discloses a longitudinal-torsion composite ultrasonic vibration cutting device, including a coaxially arranged machining tool, an ultrasonic vibration longitudinal-torsion spindle system and a clamping taper shank, wherein the ultrasonic vibration longitudinal-torsion spindle system is composed of a pre-tightening bolt, a positioning chuck, an electrode sheet, an insulating sheet, an insulating sleeve, a piezoelectric ceramic sheet, a torsional amplitude transformer, an amplitude transformer and a collector ring, wherein the machining tool is fixed at the bottom of the amplitude transformer, and the clamping taper shank is fixed at the top of the positioning chuck. It mainly uses an amplitude transformer processed with an inclined groove as a converter to convert the longitudinal vibration into torsional vibration through the inclined groove feature.
[0006] In the above scheme, since the ratio of longitudinal vibration to torsional vibration is fixed, this design limits the adaptability of the system to different processing requirements. In actual applications, different materials and processing environments may require different vibration modes and intensities. The fixed ratio design cannot meet such changing requirements, thus affecting the processing effect and efficiency. At the same time, the use of structures such as bevel grooves or spiral grooves will reduce the load-bearing capacity of the ultrasonic tool holder, increase fatigue, and easily cause dark cracks and disconnection.
[0007] Therefore, the applicant proposes a longitudinal-torsional composite ultrasonic toolholder processing system.
[0008] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention
[0009] The present invention proposes a longitudinal-torsional composite ultrasonic toolholder processing system, aiming to solve the problems in the prior art that the ratio of longitudinal vibration to torsional vibration during processing can only be changed by adjusting the longitudinal vibration power, and the torsional angle and amplitude are relatively limited.
[0010] To achieve the above-mentioned purpose, the present invention proposes a longitudinal-torsional composite ultrasonic tool handle processing system, comprising: a tool body, a transducer, a longitudinal vibration source, a torsional vibration source and a wireless module, the transducer is used to convert the vibration energy generated by the longitudinal vibration source and the torsional vibration source into ultrasonic vibration, and an installation chamber is axially opened at the lower end of the transducer, the tool body is fixedly installed in the installation chamber, and partially extends axially outside the installation chamber, the longitudinal vibration source and the torsional vibration source are axially installed in two concave rings opened at the rear end of the tool body, and are closely matched with the tool body, the plane where the torsional vibration source is located is lower than the plane where the longitudinal vibration source is located, and the wireless module is fixedly mounted on the outer periphery of the transducer and can rotate with the tool body.
[0011] Preferably, the torsional vibration source and the longitudinal vibration source each include a ring-shaped vibrator formed by splicing at least 12 pieces of fan-shaped piezoelectric ceramics.
[0012] Furthermore, the polarization direction of the torsional vibration source is set to be counterclockwise, and the polarization direction of the longitudinal vibration source is set along the axial direction of the annular vibrator.
[0013] Preferably, the installation chamber is arranged in a stepped structure.
[0014] Furthermore, the installation chamber includes at least: a first chamber, a second chamber and a third chamber, the first chamber, the second chamber and the third chamber are arranged in sequence on the upper end of the tool body along the long axis direction, the opening diameter of the first chamber is smaller than the opening diameter of the second chamber, and the opening diameter of the second chamber is smaller than the opening diameter of the third chamber.
[0015] Furthermore, the tail end of the tool body is positioned and assembled in the first cavity and partially extends axially into the second cavity. The longitudinal vibration source is positioned and installed on the concave ring located in the second cavity. The torsional vibration source is positioned and installed on the concave ring located in the third cavity. A certain spacing space is left in the above-mentioned second cavity and third cavity for evenly distributing the vibration energy to ensure that the tool body is subjected to balanced and consistent vibration during the entire working process.
[0016] Preferably, a radially outwardly extending positioning rib is provided in the middle of the tool body to restrict the rear end of the tool body within the installation chamber of the transducer.
[0017] Furthermore, a concave step surface is provided in the positioning rib, and the concave step surface cooperates with the opening at the bottom of the installation chamber to prevent the tool body from axial movement or radial swing during high-speed rotation and vibration.
[0018] Preferably, the wireless module includes: a module body, a longitudinal vibration source wireless module and a torsional vibration source wireless module. The module body is fixedly arranged on the periphery of the transducer, the longitudinal vibration source wireless module and the torsional vibration source wireless module are integrated in an annular chamber within the module body, and are respectively connected to the longitudinal vibration source and the torsional vibration source drive, so as to autonomously adjust the required longitudinal and torsional amplitude ratio according to the working conditions and maximize the characteristics of independent operation and coupling of the longitudinal and torsional parts.
[0019] Furthermore, the structure of the longitudinal vibration source wireless module is the same as that of the torsional vibration source wireless module. The torsional vibration source wireless module consists of a torsional vibration receiving end and a torsional vibration transmitting end. The torsional vibration receiving end is arranged on the side of the annular chamber close to the transducer, and the torsional vibration transmitting end is arranged on the side of the annular chamber away from the transducer and connected to an external power supply, and the torsional vibration transmitting end and the torsional vibration receiving end are arranged in a concentric circle structure.
[0020] The beneficial effects of the technical solution of the present invention are:
[0021] By installing the longitudinal vibration source and the torsional vibration source directly in the concave ring at the rear end of the tool body and closely matching the tool body, efficient transmission of vibration energy is ensured, so that the vibration energy can act more concentratedly on the tool working area, thereby improving the accuracy and efficiency of the processing process.
[0022] The design of the wireless module reduces the use of cables, reduces the complexity of the system, and reduces the system downtime caused by cable failure, thereby improving the overall reliability of the system and the convenience of maintenance. It can also autonomously adjust the required longitudinal and torsional amplitude ratio according to actual working conditions to improve the flexibility of operation, so that the system can automatically optimize its performance according to different processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of a longitudinal-torsional composite ultrasonic tool handle;
[0024] Figure 2 It is a top view of the longitudinal vibration source in the longitudinal-torsional composite ultrasonic tool holder;
[0025] Figure 3 This is the measurement result diagram of the tool front end rotation;
[0026] Figure 4 Schematic diagram of the radial displacement of the front end of the tool at different positions;
[0027] Figure 5It is a schematic diagram of the change of the displacement rotation Z component of two metal parts of different sizes at different positions;
[0028] Figure 6 It is the linear relationship diagram between the radial displacement of the tool front end and the y coordinate.
[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] The scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0032] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0033] In addition, if the description of "first", "second", etc. in the present invention is only used for descriptive purposes (such as for distinguishing the same or similar elements), it cannot be understood as indicating or implying their relative importance or implicitly including the inner concave ring 7 or implicitly including at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.
[0034] The present invention proposes a longitudinal-torsion composite ultrasonic tool handle processing system, referring to Figures 1 to 2, including: a tool body 1, a transducer 2, a longitudinal vibration source 3, a torsional vibration source 4 and a wireless module 5, the transducer 2 is used to convert the vibration energy generated by the longitudinal vibration source 3 and the torsional vibration source 4 into ultrasonic vibration, and an installation chamber 6 is axially opened at the lower end of the transducer 2, the tool body 1 is fixedly installed in the installation chamber 6, and partially extends axially to the outside of the installation chamber 6, the longitudinal vibration source 3 and the torsional vibration source 4 are axially installed in two concave rings 7 opened at the tail end of the tool body 1, and are closely matched with the tool body 1 to ensure the stable installation of the vibration source. At the same time, the vibration source is protected from external influences and the structural stability of the entire system is enhanced. The plane where the longitudinal vibration source 3 is located is higher than the plane where the torsional vibration source 4 is located, and the wireless module 5 is fixedly mounted on the periphery of the transducer 2 and can rotate with the tool body 1.
[0035] Among them, the torsional vibration source 4 and the longitudinal vibration source 3 are both annular vibrators composed of 12 or more fan-shaped piezoelectric ceramics. Specifically, in order to generate vibration along the axis of the tool body 1, the polarization direction of the above-mentioned torsional vibration source 4 is set to be counterclockwise, while the polarization direction of the longitudinal vibration source 3 is set along the axial direction of the annular vibrator.
[0036] In this embodiment, the transducer 2 efficiently converts the vibration energy generated by the longitudinal vibration source 3 and the torsional vibration source 4 into ultrasonic vibration, and through the combined use of the longitudinal vibration source 3 and the torsional vibration source 4, the machining system can generate a complex ultrasonic vibration mode on the tool body 1. This superimposed vibration state not only enhances the cutting force, but also improves the smoothness of the cutting process, thereby effectively improving the material removal rate and machining accuracy.
[0037] Furthermore, the design in which the plane where the longitudinal vibration source 3 is located is higher than the torsional vibration source 4 is conducive to balancing the mechanical relationship between the two vibration sources in functional execution, reducing potential mechanical interference, and further improving the operational stability of the system. The counterclockwise polarization direction setting of the torsional vibration source 4 optimizes the distribution of cutting force, so that when the tool encounters special-shaped or hard materials during processing, it can more effectively reduce cutting resistance and reduce tool wear.
[0038] At the same time, 12 or more fan-shaped piezoelectric ceramics are spliced into a ring-shaped vibrator, which increases the vibration excitation points of the system and makes the vibration energy more evenly distributed on the tool body 1.
[0039] In addition, the integrated wireless module 5 allows the system to communicate wirelessly with external devices (such as computer control systems), providing the operator with a larger operating space and more flexible control methods.
[0040] Compared with the CNC ultrasonic tool handle processing system in the prior art, the longitudinal-torsional characteristics of the transducer 2 of the CNC ultrasonic tool handle processing system in this embodiment are driven by two different vibration sources, namely the longitudinal vibration source 3 and the torsional vibration source 4, to drive the longitudinal-torsional characteristics of the transducer 2 and provide high-intensity torsional vibration and a very rich longitudinal-torsional ratio setting for the auxiliary mode of ultrasonic processing.
[0041] from Figure 3 , Figure 4 , Figure 5 and Figure 6 It can be seen from the data and trends in that the CNC ultrasonic toolholder processing system in this embodiment shows good performance in the longitudinal and torsional characteristics of the transducer 2. This design driven by two different vibration sources (longitudinal vibration source 3 and torsional vibration source 4) provides high-intensity torsional vibration and rich longitudinal and torsional ratio settings for ultrasonic processing, which helps to improve processing accuracy and efficiency.
[0042] Specifically, Figure 3 The measurement results of the tool tip rotation are shown, where the horizontal axis represents the tool tip position in millimeters (mm), and the vertical axis represents the tool tip rotation in 10^-5. As can be seen from the figure, as the y coordinate increases, the tool tip rotation shows a fluctuating trend, but remains relatively stable in the entire measurement range, without obvious fluctuations or abnormal values.
[0043] Figure 4 The figure shows the radial displacement of the front end of the tool at different positions: the horizontal axis y represents the position of the tool, ranging from -3 to 3, in millimeters (mm). The vertical axis represents the radial displacement of the front end of the tool, in microns (μm). Figure 4 It can be seen that as the position of the tool changes, the radial displacement of its front end also shows a corresponding change trend. In some positions, the radial displacement is large, while in other positions it is relatively small.
[0044] Figure 5 The figure shows the change of the displacement curl Z component of two metal parts of different sizes at different positions: the horizontal axis y represents the position of the metal part, in millimeters (mm), and the vertical axis represents the displacement curl Z component, in micrometers (μm). Figure 5 It can be seen that as the position of the metal part changes, its displacement rotation Z component also shows a corresponding change trend.
[0045] Figure 6 The linear relationship between the radial displacement of the tool tip and the y-coordinate is shown: the horizontal axis y represents the position of the tool in millimeters (mm), and the vertical axis represents the radial displacement of the tool tip in micrometers (μm). Figure 6It can be seen that with the increase of the y coordinate, the radial displacement of the tool front end shows a linear increase or decrease trend.
[0046] In summary, the CNC ultrasonic tool holder processing system in this embodiment drives the longitudinal-torsion characteristics of the transducer through two different vibration sources, providing high-intensity torsional vibration and rich longitudinal-torsion ratio settings for ultrasonic processing. It can be found that whether from the perspective of rotation or lateral torsional amplitude, the dual-source longitudinal torsion is about an order of magnitude higher than the effect of the inclined groove type.
[0047] Therefore, it can be concluded that the upper limit of torsional vibration is far beyond that of the current mainstream bevel groove longitudinal torsional ultrasonic tool holder.
[0048] In one of the embodiments, the longitudinal vibration source 3 and the torsional vibration source 4 are on the same axis, and the effective area of the torsional vibration source 4 is increased by the part of the outer edge of the torsional vibration source 4 that protrudes circumferentially from the outer edge of the longitudinal vibration source 3, thereby effectively generating stronger torsional vibration, so that the torsional vibration can be more concentrated on the active part of the tool, thereby improving the processing efficiency.
[0049] In this embodiment, on the one hand, the protruding design of the outer edge of the torsional vibration source 4 can enhance the contact area with the tool body 1, providing better mechanical support and stability. It can reduce the mechanical stress during high-speed or high-load processing, thereby improving the structural stability and reliability of the entire system. At the same time, the protruding torsional vibration source 4 design also helps to distribute the vibration energy more evenly on the tool body 1, especially at the working tip of the tool. It is more helpful to achieve more uniform material cutting and removal, and reduce deviations and unevenness during processing.
[0050] On the other hand, due to the coaxial design of the torsional vibration source 4 and the longitudinal vibration source 3, more precise vibration control can be achieved, especially in the composite vibration mode, so that the tool can achieve more precise material positioning and removal during the machining process, thereby improving the machining accuracy.
[0051] In one embodiment, the installation chamber 6 is provided with a three-step stepped structure that gradually widens from narrow to wide, thereby enhancing the overall mechanical strength of the installation chamber 6. This structural design enables the tool handle to more effectively disperse stress when subjected to high-speed rotation and high-pressure processing, thereby reducing possible deformation or damage.
[0052] Specifically, the installation chamber 6 includes at least: a first chamber 8, a second chamber 9 and a third chamber 10. The first chamber 8, the second chamber 9 and the third chamber 10 are arranged in sequence on the upper end of the tool body 1 along their long axis direction. The opening diameter of the first chamber 8 is smaller than the opening diameter of the second chamber 9, and the opening diameter of the second chamber 9 is smaller than the opening diameter of the third chamber 10.
[0053] Furthermore, the tail end of the tool body 1 is positioned and assembled in the first cavity 8, and partially extends axially into the second cavity 9. The longitudinal vibration source 3 is positioned and installed on the recessed ring 7 located in the second cavity 9. The torsional vibration source 4 is positioned and installed on the recessed ring 7 located in the third cavity 10. A certain spacing space is reserved in the above-mentioned second cavity 9 and the third cavity 10 for evenly distributing the vibration energy, thereby ensuring that the tool body 1 is subjected to balanced and consistent vibration during the entire working process.
[0054] In this embodiment, the tail end of the tool body 1 can be positioned and assembled in the first chamber 8, and partially extended axially into the second chamber 9, and the longitudinal vibration source 3 and the torsional vibration source 4 are respectively installed on the concave ring 7 in the second chamber 9 and the third chamber 10, so as to achieve a precise component layout. This hierarchical assembly method helps to reduce assembly errors and improve the stability of the overall system, thereby more effectively transmitting and utilizing vibration energy. Since the first chamber 8, the second chamber 9 and the third chamber 10 are arranged in sequence along their long axis direction, and the opening diameter of each chamber increases in sequence, it is beneficial to the focusing effect when the vibration energy is transmitted from the wide mouth to the narrow mouth, thereby improving the efficiency and accuracy of vibration transmission.
[0055] On the other hand, the spacing spaces provided in the second chamber 9 and the third chamber 10 play a role in vibration transmission and amplification. These spaces can effectively gather and transmit the vibration energy generated by the longitudinal vibration source 3 and the torsional vibration source 4 to the tool body 1, thereby enhancing the efficiency of cutting and processing, and the reserved spacing spaces are used to evenly distribute the vibration energy in the second chamber 9 and the third chamber 10, ensuring that the tool body 1 is subjected to a balanced and consistent vibration during the entire working process.
[0056] In addition, due to the different diameters of each chamber, better hot air flow and heat dissipation are promoted, which helps the system maintain a lower temperature during long-term operation and ensures the performance and stability of the system.
[0057] In one embodiment, a radially outwardly extending positioning rib 11 is disposed in the middle of the tool body 1 to limit the rear end of the tool body 1 within the installation chamber 6 of the transducer 2 .
[0058] Specifically, a concave step surface 12 is provided in the positioning rib 11, and the concave step surface 12 cooperates with the opening at the bottom of the installation chamber 6 to prevent the tool body 1 from axial movement or radial swing during high-speed rotation and vibration, thereby ensuring that the tool body 1 is stably fixed in the installation chamber 6 of the transducer 2.
[0059] In this embodiment, the positioning ribs 11 can be provided to provide an additional support point for the middle of the tool body 1, increase the contact area between the tool body 1 and the transducer 2 installation chamber 6, thereby improving the stability of the tool during high-speed rotation and vibration. The axial movement and radial swing of the tool body 1 are effectively limited, ensuring the accuracy and consistency of the machining process.
[0060] At the same time, the inner concave step surface 12 cooperates with the protrusion at the bottom of the installation chamber 6 to increase the locking effect between the tool body 1 and the transducer 2, preventing the tool body 1 from moving under any processing conditions. This precise cooperation not only improves the stability of the tool system, but also greatly enhances the safety and reliability of the entire system during long-term operation.
[0061] In addition, the design of the concave step surface 12 in the positioning rib 11 makes it easier to assemble and disassemble the tool body 1. The operator can quickly and accurately install the tool body 1 into the installation cavity 6 or remove it from the cavity without using special tools or performing complicated operations.
[0062] In one embodiment, the wireless module 5 includes: a module body 13, a longitudinal vibration source wireless module 14 and a torsional vibration source wireless module 15. The module body 13 is fixedly arranged on the periphery of the transducer 2. The longitudinal vibration source wireless module 14 and the torsional vibration source wireless module 15 are integrated in an annular chamber 16 in the module body 13, and are respectively driven and connected to the longitudinal vibration source 3 and the torsional vibration source 4, so as to autonomously adjust the required longitudinal and torsional amplitude ratio according to the working conditions and maximize the characteristics of independent operation and coupling of the longitudinal and torsional parts. The structure of the torsional vibration source wireless module 15 is the same as that of the longitudinal vibration source wireless module 14.
[0063] Furthermore, the torsional vibration source wireless module 15 is composed of a torsional vibration receiving end 17 and a torsional vibration transmitting end 18. The torsional vibration receiving end 17 is arranged on a side of the annular chamber 16 close to the transducer 2, and the torsional vibration transmitting end 18 is arranged on a side of the annular chamber 16 away from the transducer 2 and is connected to an external power supply, and the torsional vibration transmitting end 18 and the torsional vibration receiving end 17 are arranged in a concentric circle structure.
[0064] In this embodiment, on the one hand, through the integrated longitudinal vibration source wireless module 14 and torsional vibration source wireless module 15, the system can autonomously adjust the required longitudinal and torsional amplitude ratio according to different working conditions to ensure the optimization of energy use under different processing tasks, thereby improving the overall processing efficiency and effect. And through the characteristics of longitudinal vibration and torsional vibration working independently and coupling, the system can maximize the use of the best vibration mode (longitudinal, torsional or a combination thereof) according to specific processing requirements to achieve more efficient and precise material processing.
[0065] On the other hand, the concentric circle structure configuration of the torsional vibration receiving end 17 and the torsional vibration transmitting end 18 enhances the structural stability of the entire wireless module 5. This stable geometric layout helps to reduce errors during operation and improves reliability and durability in long-term operation. At the same time, integrating the wireless module components in the annular chamber 16 improves the thermal management system of the device. It is conducive to the dispersion and discharge of heat, thereby reducing the risk of overheating, protecting circuits and other sensitive components from thermal damage, and extending the life of the device.
[0066] In addition, since the structure of the torsional vibration source wireless module 15 is the same as that of the longitudinal vibration source wireless module 14, this design simplifies the integration and maintenance of the system. The plug-and-play configuration greatly enhances the responsiveness of the system, making it possible to quickly adjust and switch between different processing modes.
[0067] The above descriptions are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.
Claims
1. A longitudinal-torsion composite ultrasonic toolholder processing system, characterized in that: include: A tool body (1), a transducer (2), a longitudinal vibration source (3), a torsional vibration source (4), and a wireless module (5), wherein the transducer (2) is used to convert the vibration energy generated by the longitudinal vibration source (3) and the torsional vibration source (4) into ultrasonic vibration, and an installation chamber (6) is axially provided at the lower end of the transducer (2); the tool body (1) is fixedly installed in the installation chamber (6) and partially extends axially outside the installation chamber (6); the longitudinal vibration source (3) and the torsional vibration source (4) are axially installed in two concave rings (7) provided at the rear end of the tool body (1) and are closely matched with the tool body (1); the plane where the torsional vibration source (4) is located is lower than the plane where the longitudinal vibration source (3) is located; and the wireless module (5) is fixedly mounted on the periphery of the transducer (2) and can rotate with the tool body (1); The installation chamber (6) is arranged in a stepped structure; the installation chamber (6) comprises at least: a first chamber (8), a second chamber (9) and a third chamber (10); the first chamber (8), the second chamber (9) and the third chamber (10) are arranged in sequence at the upper end of the tool body (1) along the long axis direction; the opening diameter of the first chamber (8) is smaller than the opening diameter of the second chamber (9); and the opening diameter of the second chamber (9) is smaller than the opening diameter of the third chamber (10); The rear end of the tool body (1) is positioned and assembled in the first chamber (8) and partially extends axially into the second chamber (9); the longitudinal vibration source (3) is positioned and mounted on the concave ring (7) located in the second chamber (9); the torsional vibration source (4) is positioned and mounted on the concave ring (7) located in the third chamber (10); and preset spacing spaces are reserved in the second chamber (9) and the third chamber (10) for evenly distributing vibration energy.
2. The longitudinal-torsion composite ultrasonic tool handle processing system according to claim 1, characterized in that: The torsional vibration source (4) and the longitudinal vibration source (3) both comprise an annular vibrator formed by splicing at least 12 pieces of fan-shaped piezoelectric ceramics.
3. The longitudinal-torsion composite ultrasonic tool handle processing system according to claim 2, characterized in that: The polarization direction of the torsional vibration source (4) is set to be counterclockwise, and the polarization direction of the longitudinal vibration source (3) is set along the axial direction of the annular vibrator.
4. The longitudinal-torsion composite ultrasonic tool handle processing system according to claim 1, characterized in that: A radially outwardly extending positioning rib (11) is provided in the middle of the tool body (1) for limiting the rear end of the tool body (1) within the installation chamber (6) of the transducer (2).
5. The longitudinal-torsion composite ultrasonic tool handle processing system according to claim 4, characterized in that: The positioning rib (11) is provided with a concave step surface (12), and the concave step surface (12) cooperates with the opening at the bottom of the installation chamber (6) to prevent the tool body (1) from axial movement or radial swing during high-speed rotation and vibration.
6. The longitudinal-torsion composite ultrasonic tool handle processing system according to claim 1, characterized in that: The wireless module (5) comprises: a module body (13), a longitudinal vibration source wireless module (14) and a torsional vibration source wireless module (15); the module body (13) is fixedly arranged on the periphery of the transducer (2); the longitudinal vibration source wireless module (14) and the torsional vibration source wireless module (15) are integrated in an annular chamber (16) in the module body (13), and are electrically connected to the longitudinal vibration source (3) and the torsional vibration source (4) respectively, so as to autonomously adjust the required longitudinal and torsional amplitude ratio according to working conditions.
7. The longitudinal-torsion composite ultrasonic tool handle processing system according to claim 6, characterized in that: The structure of the longitudinal vibration source wireless module (14) is the same as that of the torsional vibration source wireless module (15). The torsional vibration source wireless module (15) comprises a torsional vibration receiving end (17) and a torsional vibration transmitting end (18). The torsional vibration receiving end (17) is arranged on a side of the annular chamber (16) close to the transducer (2). The torsional vibration transmitting end (18) is arranged on a side of the annular chamber (16) away from the transducer (2) and is connected to an external power supply. The torsional vibration transmitting end (18) and the torsional vibration receiving end (17) are arranged in a concentric circle structure.
Citation Information
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Single-excitation longitudinal-torsional composite vibration conversion device
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