CN211938615U - R-L longitudinal-bending composite vibration special-shaped hole punching and cutting system - Google Patents
R-L longitudinal-bending composite vibration special-shaped hole punching and cutting system Download PDFInfo
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- CN211938615U CN211938615U CN202020006764.2U CN202020006764U CN211938615U CN 211938615 U CN211938615 U CN 211938615U CN 202020006764 U CN202020006764 U CN 202020006764U CN 211938615 U CN211938615 U CN 211938615U
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Abstract
The utility model discloses a R-L complex vibration dysmorphism hole punching system of indulging. The R-L longitudinal bending composite vibration special-shaped hole punching and cutting system is characterized in that an R-L composite vibration disc and a longitudinal bending composite vibration amplitude transformer are arranged, a plurality of vibration transducers are arranged on the outer ring of the vibration disc, and the transducers are driven by a high-frequency power supply to generate vibration; the vibration energy of the multiple transducers is gathered through the R-L composite vibration disc and converted into longitudinal vibration, the longitudinal vibration amplitude is amplified through the longitudinal bending vibration amplitude transformer and converted into longitudinal bending composite vibration, and the tool head is driven to act on the workpiece through the longitudinal bending composite vibration amplitude transformer; meanwhile, the feeding motion of the machine tool platform is combined, so that the special-shaped hole is quickly formed. R-L indulges curved compound vibration dysmorphism hole punching and cuts system's structure and has the rotatory punching and cutting forming device in traditional dysmorphism hole and simplify by a wide margin, and can accomplish the special-shaped hole punching and cutting processing that the shape is more complicated, reduce cost simultaneously.
Description
Technical Field
The utility model relates to a machining technique specifically relates to a dysmorphism hole forming tool system.
Background
With the development of manufacturing technology, the use and demand of various parts with special-shaped through holes and blind holes in the manufacturing industry are greatly increased. The current methods for machining complex special-shaped holes mainly comprise: slotting, rotary punching, electric discharge machining, electrolytic machining and the like. However, the slotting machining efficiency is low, the number of burrs is large, and the one-step forming of various complex special-shaped blind holes cannot be realized; the rotary punching and cutting processing must be carried out on a machine tool with a rotary main shaft, the damage to the main shaft of a non-special machine tool is large, when a non-standard special-shaped hole is processed, a specially designed linkage tool head is often needed to be used for the specific hole, and the cost is high; the electric spark machining efficiency is low, the tool electrode is quickly worn, and the electric spark machining method is not suitable for mass production; can produce the tapering that is difficult to avoid during electrolytic machining dysmorphism hole, the hole surface shaping quality who obtains also hardly further improves, and before and after the electrolytic machining in-process can produce a large amount of processing waste liquids, and environmental pollution is great. These existing problems are to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solve above-mentioned problem, reasonable in design, economic nature are good, machining efficiency is high, the shaping is of high quality and can carry out the instrument system of more complicated dysmorphism hole processing on multiple lathe platform.
The utility model discloses realize that the technical scheme that above-mentioned purpose adopted does: the R-L longitudinal bending composite vibration special-shaped hole punching and cutting system comprises a tool head, a main working shaft, an R-L composite vibration disc, a mounting flange plate, a tool head clamp, a transducer group, a longitudinal bending vibration amplitude transformer, a tail bolt, a rear balancing weight locking nut, a vibration guide groove, a transducer lead, a power box, a control host and a vibration signal acquisition system.
The middle part of the main working shaft is provided with the R-L composite vibration disc, the front part of the main working shaft is provided with the longitudinal bending vibration amplitude transformer, and the rear part of the main working shaft is provided with the tail bolt; the main working shaft, the R-L composite vibration disc, the longitudinal bending vibration amplitude transformer and the tail bolt are integrally machined and formed and have the same axle center.
The R-L composite vibration disc is rotationally symmetrical about the mass center of the R-L composite vibration disc and is provided with two groups of transducer mounting surfaces which are uniformly distributed in a staggered manner around the axis of the R-L composite vibration disc along the circumferential direction of the vibration disc, wherein one group of the transducer mounting surfaces inclines downwards, and the other group of the transducer mounting surfaces inclines upwards; and the mounting surface is provided with a threaded mounting hole.
The transducer groups are arranged on the mounting surfaces on the outer side of the R-L composite vibration disc in a staggered mode in two groups, and each group of transducers are uniformly and symmetrically distributed around the axis of the main working shaft.
Preferably, the method comprises the following steps: the transducer group is all sandwich type piezoelectric ceramic transducers.
Preferably, the method comprises the following steps: the transducer is tightly connected with the mounting surface by threads, and is coated with resin adhesive for preventing looseness.
The tool head clamp is arranged at the front part of the longitudinal bending vibration amplitude transformer; the tool head is tightly mounted in the tool head clamp.
The middle part of the longitudinal bending vibration amplitude transformer is provided with a plurality of vibration guide grooves which are symmetrical around the axis of the longitudinal bending vibration amplitude transformer.
The rear balancing weight is a geometric solid of revolution with an installation through hole in the axis, and is fixed behind the main working shaft by matching the tail bolt with the locking nut of the rear balancing weight.
The mounting flange plates are all mounted on the middle section of the main working shaft and are coaxial with the main working shaft, one mounting flange plate is mounted in front of the R-L composite vibration plate and close to the rear end of the longitudinal bending vibration amplitude transformer, and the other mounting flange plate is mounted behind the R-L composite vibration plate.
In the transducer group, each transducer is respectively connected to the output port of the high-frequency pulse generation power supply in the power supply box through a group of independent wires; parameters such as on-off, pulse intensity and the like output by each power port in the power box are controlled by the control host in real time.
Furthermore, the R-L longitudinal bending composite vibration special-shaped hole punching and cutting system further comprises a vibration signal collector, and the control host receives and processes signals output by the vibration signal collector.
Preferably, the control host adopts an industrial personal computer with an upper computer algorithm control function, and is provided with an interface capable of communicating with most of machine tool numerical control systems.
Furthermore, the R-L longitudinal bending composite vibration special-shaped hole punching and cutting system further comprises a lead storage sleeve, and leads of the transducer group are all arranged in the lead storage sleeve.
Furthermore, a plurality of mounting holes or mounting notches are formed in the mounting flange plate around the axis, and the mounting flange plate can be mounted on different machine tool platforms.
Furthermore, a plurality of transverse special-shaped grooves distributed along the axial direction are arranged in the vibration guide groove.
Compared with the prior art, the utility model has the advantages of: the R-L longitudinal bending composite vibration special-shaped hole punching and cutting system collects the vibration energy of a plurality of transducers and converts the vibration energy into longitudinal vibration through the R-L composite vibration disc, and amplifies the amplitude of the longitudinal vibration through the longitudinal bending vibration amplitude transformer and converts the longitudinal vibration into longitudinal bending composite vibration; the longitudinal and bending composite vibration action is applied to a workpiece through the tool head, and the feeding motion of a machine tool is combined, so that the punching and cutting forming of the complicated special-shaped hole is realized. The transducer group can reach high vibration frequency, so that the forming efficiency of the special-shaped hole can be effectively improved; and simultaneously, through circuit control, make the main device of R-L complex vibration dysmorphism hole punching system of indulging can produce around the rotatory indulging bending alternating vibration in axle center under the prerequisite of no main shaft rotation, has further improved machining efficiency, greatly reduced the complicated dysmorphism hole processing degree of difficulty. Consequently, compare the rotatory dysmorphism hole forming device that punches of tradition, the utility model discloses structurally there is simplification by a wide margin, and the commonality increases substantially, can install the use on the lathe of no rotatory main shaft, and the adaptation face is wide, and the shaping is of high quality, and the cost further reduces.
Drawings
FIG. 1 is a front view of the main structure of the present invention;
FIG. 2 is a perspective view of the main structure of the present invention;
FIG. 3 is a partially enlarged schematic view of key parts of the present invention;
fig. 4 is a schematic diagram of a typical structure of a single transducer in the transducer group 6 according to the present invention;
fig. 5 is a schematic diagram of a circuit control principle in an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: referring to fig. 1, 2, 3, 4 and 5, the R-L longitudinal bending composite vibration special-shaped hole punching and cutting system comprises a tool head 1, a main working shaft 2, an R-L composite vibration disc 3, a mounting flange plate 4, a tool head clamp 5, a transducer group 6, a longitudinal bending vibration amplitude transformer 7, a tail bolt 8, a rear balancing weight 9, a rear balancing weight locking nut 10, a vibration guide groove 11, a transducer lead 12, a power box 13, a control host 14 and a vibration signal acquisition system 15.
The main working shaft 2 is symmetrical about a shaft axis, the middle part of the main working shaft is provided with the R-L composite vibration disc 3, the front part of the main working shaft is provided with the longitudinal and bending vibration amplitude transformer 7, and the rear part of the main working shaft is provided with the tail bolt 8; the main working shaft 2, the R-L composite vibration disc 3, the longitudinal bending vibration amplitude transformer 7 and the tail bolt 8 are integrally processed and formed, and the axial leads of the main working shaft and the tail bolt coincide.
The longitudinal bending vibration amplitude transformer 7 is of a multi-section rod-shaped structure, and the middle part of the longitudinal bending vibration amplitude transformer is provided with a plurality of vibration guide grooves 11 which are symmetrical around the axis of the longitudinal bending vibration amplitude transformer; the tool head clamp 5 is arranged at the front part of the longitudinal bending vibration amplitude transformer 7; the tool head 1 is mounted in a tool head holder 5.
The R-L composite vibration disc 3 is rotationally symmetrical about the axis of the R-L composite vibration disc and two groups of transducer mounting surfaces 31 which are uniformly distributed in a staggered manner are arranged on the outer side of the R-L composite vibration disc along the circumferential direction, wherein one group is inclined downwards, and the other group is inclined upwards; the transducer mounting surface 31 is provided with a threaded mounting hole 32 which can be combined with a threaded hole in the center of the sandwich transducer through a stud bolt.
The transducer groups 6 are arranged on the transducer mounting surface 31 on the outer side of the R-L composite vibration disc 3 in two groups in a staggered mode, and each transducer group 6 is uniformly and symmetrically distributed around the axis line of the main working shaft 2.
The mounting flange plates 4 are all mounted near the vibration joint in the middle section of the main working shaft 2 and are coaxial with the main working shaft 2, one is mounted in front of the R-L composite vibration plate 3 and close to the rear end of the longitudinal bending vibration amplitude transformer 7, and the other is mounted behind the R-L composite vibration plate 3.
In the transducer group 6, each transducer is respectively connected to an output port of a high-frequency power supply 13-1 in a power supply box 13 through a group of independent transducer leads 12; parameters such as on-off and pulse intensity output by each power port in the power box 13 are controlled by the control host 14 in real time.
The rear balancing weight 9 is a geometric solid of revolution with an installation through hole in the axis, and is fixed at the rear end of the main working shaft 2 by the tail bolt 8 matching with the rear balancing weight locking nut 10.
In the working process:
(1) the transducer group 6 is excited by high-frequency electric pulses released by the power supply box 13 to vibrate, so that the R-L composite vibration disc 3 generates R-radial contraction resonance along with the transducer group 6; meanwhile, under the driving of the internal stress, the R-L composite vibration disc 3 converts the R-radial contraction vibration into R-L coupling vibration, so that the vibration energy of the transducer group 6 is superposed in a high power mode in the axial direction (L direction), and the main working shaft 2 and the longitudinal bending vibration amplitude transformer 7 generate axial resonance (L vibration) with the main working shaft and the longitudinal bending vibration amplitude transformer;
(2) the longitudinal bending vibration amplitude transformer 7 amplifies the L vibration amplitude, and simultaneously converts a part of L vibration energy into bending vibration under the combined action of the inherent vibration characteristic of the longitudinal bending vibration amplitude transformer 7 and the vibration guide groove 11 to generate longitudinal bending composite vibration;
(3) the distribution and coordination of high-frequency power supply pulses in the transducer group are controlled by the control host 14, so that the intensity distribution of the R-radial contraction vibration in the circumferential direction of the R-L composite vibration disc 3 is periodically changed, the center of L-direction vibration energy obtained by the longitudinal bending vibration amplitude transformer 7 through resonance is periodically deviated in the section of the longitudinal bending vibration amplitude transformer, the direction of the bending vibration is periodically changed, and the longitudinal bending composite alternating vibration is generated. When the longitudinal bending composite alternating vibration acts on a workpiece through a high-hardness tool head, the feeding motion of a machine tool platform is combined, so that a special-shaped hole to be machined is quickly formed;
(4) due to the action of high-frequency longitudinal bending and alternating vibration, the machined surface obtains accurate cold-work hardening while the special-shaped hole is rapidly formed in the machining feeding direction, the surface compressive stress is uniformly distributed, and the forming quality is excellent.
To sum up, the R-L longitudinal bending composite vibration special-shaped hole punching system of the present invention collects the vibration energy of the transducer group 6 through the R-L composite vibration disk 3 and converts the vibration energy into longitudinal vibration, amplifies the amplitude of the longitudinal vibration through the longitudinal bending vibration amplitude transformer 7 and converts the longitudinal vibration into longitudinal bending composite vibration, and drives the tool head to apply the composite vibration to the workpiece, and the high frequency transducer can achieve very high frequency due to vibration, so that the forming efficiency of the special-shaped hole can be effectively improved; simultaneously, through electromechanical control, make R-L complex vibration dysmorphism hole punching system of indulging can produce the complex alternating vibration of indulging under the condition that does not have the main shaft rotation, can normally impel the punching tool head that cross sectional shape is complicated to work piece inside along the lathe direction of feed. Therefore R-L longitudinal bending composite vibration special-shaped hole punching and cutting system has a structure which is greatly simplified compared with the traditional special-shaped hole rotary punching and cutting forming device, and has no requirement on the rotary main shaft of the machine tool, stronger adaptability and further reduced cost.
In order to further improve the energy conversion efficiency of the R-L longitudinal bending composite vibration special-shaped hole punching system, reduce the cost and lighten the structural weight, preferably, the transducer group completely adopts a sandwich type piezoelectric ceramic transducer.
In order to improve the maintainability of the R-L buckling composite vibration special-shaped hole punching system, the transducer is preferably fixedly connected with the mounting surface by threads, and a resin adhesive is coated to prevent looseness.
In order to reduce the energy dissipation caused by the asymmetric resonance of the rear section of the main working shaft 2 and the longitudinal and bending vibration amplitude transformer 7 and reduce the heating of the mounting flange plate 4 so as to be beneficial to the continuous work of the system, further, the rear mass of the main working shaft 2 can be adjusted by superposing or replacing the rear balancing weight 9.
In order to reduce the energy dissipation at the joint of the R-L longitudinal-bending composite vibration special-shaped hole punching system and the machine tool platform and enhance the adaptability to the machine tool platform, further, a plurality of selectable mounting holes or mounting notches are symmetrically arranged on the mounting flange plate 4 around the axis, so that the mounting flange plate is conveniently mounted on different machine tool platforms.
In order to improve the longitudinal and bending vibration conversion efficiency and optimize the longitudinal and bending vibration coupling characteristics, a plurality of transverse special-shaped grooves 11-1 distributed along the axial direction are further arranged in the vibration guide groove 11.
In order to reduce the processing noise and improve the processing efficiency, precision and forming quality, the high-frequency power supply 13-1 is preferably a high-frequency ultrasonic power supply.
In order to improve the processing efficiency, the precision and the forming quality, further, the R-L longitudinal bending composite vibration special-shaped hole punching system further comprises a vibration signal acquisition system 15, and the control host 14 receives and processes signals output by the vibration signal acquisition system 15.
In order to reduce the adverse effect caused by the lag of the vibration feedback control, it is preferable that the control host 14 adopts an industrial personal computer with an upper computer algorithm control function, and is provided with an interface 14-1 capable of communicating with a part of the machine numerical control system.
In order to protect the multiple groups of transducer leads 12 and avoid the interference of the transducer leads 12 on the feeding motion of the machine tool platform, the R-L buckling composite vibration special-shaped hole punching system further comprises a lead storage sleeve 12-1, and the leads of the transducer groups are all arranged in the lead storage sleeve 12-1.
Claims (7)
1. The R-L longitudinal bending composite vibration special-shaped hole punching and cutting system is characterized in that: the vibration control device comprises a tool head, a main working shaft, an R-L composite vibration disc, a mounting flange plate, a tool head clamp, a transducer group, a longitudinal bending vibration amplitude transformer, a tail bolt, a rear balancing weight locking nut, a vibration guide groove, a transducer lead, a power box, a control host and a vibration signal acquisition system;
the main working shaft is rotationally symmetrical about a shaft axis, the middle part of the main working shaft is provided with the R-L composite vibration disc, the front part of the main working shaft is provided with the longitudinal bending vibration amplitude transformer, and the rear part of the main working shaft is provided with the tail bolt; the longitudinal bending vibration amplitude transformer is of a rod-shaped structure, and the middle part of the longitudinal bending vibration amplitude transformer is provided with a plurality of vibration guide grooves which are uniformly distributed around the axis of the longitudinal bending vibration amplitude transformer; the tool head clamp is arranged at the front part of the longitudinal bending vibration amplitude transformer; the tool head is clamped and installed in the tool head clamp; the R-L composite vibration disc is rotationally symmetrical about the axis of the R-L composite vibration disc, and two groups of transducer mounting surfaces which are uniformly distributed in a staggered manner are arranged on the outer side of the R-L composite vibration disc along the circumferential direction, wherein one group of transducer mounting surfaces is inclined downwards, and the other group of transducer mounting surfaces is inclined upwards; the transducer mounting surface is provided with a threaded mounting hole which can be combined with a threaded hole in the center of the sandwich type transducer through a stud; the transducer groups are arranged on the transducer mounting surface at the outer side of the R-L composite vibration disc in a staggered manner in two groups; the mounting flange plates are all arranged near the vibration joint at the middle section of the main working shaft, one mounting flange plate is arranged in front of the R-L composite vibration plate and close to the rear end of the longitudinal bending vibration amplitude transformer, and the other mounting flange plate is arranged behind the R-L composite vibration plate.
2. The R-L buckling composite vibratory contour hole punching system of claim 1, wherein: the rear balancing weight is matched with the rear balancing weight locking nut through the tail bolt and is fixed at the rear end of the main working shaft.
3. The R-L buckling composite vibratory contour hole punching system of claim 1, wherein: and a plurality of transverse special-shaped grooves distributed along the axial direction are arranged in the vibration guide groove.
4. The R-L buckling composite vibratory contour hole punching system of claim 1, wherein: in the transducer group, each transducer is respectively connected to the output port of the high-frequency power supply in the power box through a group of independent transducer leads; parameters such as on-off, pulse intensity and the like output by each power port in the power box are controlled by the control host in real time.
5. The R-L buckling composite vibratory contour hole punching system of claim 4, wherein: the control host is provided with an interface which can communicate with a main stream machine tool numerical control system or other upper computers.
6. The R-L buckling composite vibratory contour hole punching system of claim 1, wherein: the vibration signal acquisition system is also included, and the control host receives and processes signals output by the vibration signal acquisition device.
7. The R-L buckling composite vibratory contour hole punching system of claim 1, wherein: the main device is arranged on a feeding mechanism of various machine tool platforms or hydraulic presses through a flange plate per se, the main device is provided with two composite resonance structures of the R-L composite vibration disk and the longitudinal bending vibration amplitude transformer, the front end of the longitudinal bending vibration amplitude transformer is provided with a processing tool head, vibration energy generated by a plurality of transducers is gathered and converted, and the longitudinal bending composite vibration energy obtained by final conversion is acted on a workpiece through the processing tool head to provide punching and cutting processing power; the electric energy obtained by each transducer is distributed and coordinated in real time through circuit control, so that the direction and the action position of the longitudinal and bending compound vibration are changed periodically, and the punching efficiency is improved; the rapid punching and cutting forming of the special-shaped hole on the target workpiece is realized by matching with the feeding motion of the machine tool platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020006764.2U CN211938615U (en) | 2020-01-03 | 2020-01-03 | R-L longitudinal-bending composite vibration special-shaped hole punching and cutting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020006764.2U CN211938615U (en) | 2020-01-03 | 2020-01-03 | R-L longitudinal-bending composite vibration special-shaped hole punching and cutting system |
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| CN211938615U true CN211938615U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020006764.2U Expired - Fee Related CN211938615U (en) | 2020-01-03 | 2020-01-03 | R-L longitudinal-bending composite vibration special-shaped hole punching and cutting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634474A (en) * | 2021-08-24 | 2021-11-12 | 深圳市特力威科技有限公司 | Multi-dimensional ultrasonic vibration head and machine tool with same |
-
2020
- 2020-01-03 CN CN202020006764.2U patent/CN211938615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634474A (en) * | 2021-08-24 | 2021-11-12 | 深圳市特力威科技有限公司 | Multi-dimensional ultrasonic vibration head and machine tool with same |
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Granted publication date: 20201117 Termination date: 20220103 |