CN209918894U - Ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-walled workpiece - Google Patents
Ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-walled workpiece Download PDFInfo
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- CN209918894U CN209918894U CN201920463438.1U CN201920463438U CN209918894U CN 209918894 U CN209918894 U CN 209918894U CN 201920463438 U CN201920463438 U CN 201920463438U CN 209918894 U CN209918894 U CN 209918894U
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Abstract
A compound turning device of supersound longitudinal bending for thin wall spare BTA, including compound type amplitude transformer, transducer subassembly, sleeve and afterbody shield, compound type amplitude transformer installs in the sleeve with the axial, and compound type amplitude transformer from left to right is conical amplitude transformer, long vibration transmission pole, index type amplitude transformer and the short vibration transmission pole that sets up for the axial from left to right in proper order, and the transducer subassembly is located the afterbody shield and is connected with the aviation plug through the cable, and the aviation plug outside is connected with ultrasonic power through the cable. The utility model discloses simplified the structure of current supersound turning device, whole supersound longitudinal bending compound turning device is convenient for install, easy operation, it is convenient to dismantle, compares with current deep hole processingequipment, and the device processed hole class part shape precision and position accuracy obtain improving, and the internal surface quality also obtains improving. The device has high compatibility with a common lathe or a numerical control lathe, enlarges the process range of the lathe, and improves the practical efficiency and the application range of the lathe.
Description
Technical Field
The utility model belongs to the technical field of supersound lathe work, concretely relates to compound turning device of supersound indulge bending for thin wall spare deep hole machining.
Background
The deep hole processing technology of the thin-wall part is taken as the key point and the difficulty of the mechanical manufacturing technology, and has important significance for developing aerospace, national defense war industry and the like. Firstly, the thin-walled parts are difficult to machine in turning because the thin-walled parts are very easy to deform in machining, so that the form and position errors of the parts are increased, and the machining quality of the parts is not easy to guarantee. Secondly, the traditional deep hole processing technology also has a series of problems that the rigidity of a turning tool is deteriorated, the tool is seriously worn or even broken, the quality and the precision of a processed surface are sharply reduced and the like due to the fact that a cutting system has a certain degree of cutting flutter and a large amount of cutting heat because the cutting force is large in the processing process.
The ultrasonic turning technology is a precision machining method which adds simple harmonic vibration mechanical waves to a turning tool through an amplitude transformer to enable the cutting tool to periodically cut and leave a workpiece, thereby reducing cutting force and cutting temperature, improving the system rigidity to 3-10 times, and simultaneously being beneficial to improving the surface quality and prolonging the service life of the cutting tool. Therefore, the ultrasonic turning technology is widely applied to the field of deep hole machining of thin-wall parts as a method for effectively improving the deep hole machining precision.
The existing ultrasonic deep hole machining device improves the system rigidity by using auxiliary supports, adding vibration reduction devices, adjusting the length of a cutter bar and the like, but has a series of problems of complex structure, poor universality, difficulty in controlling machining precision and the like. The existing ultrasonic deep hole processing device still has the problems that the surface tissue of a workpiece is broken when being processed, the movement track of a cutter is not beneficial to chip removal and the like. Therefore, there is a need for an ultrasonic deep hole processing apparatus that can effectively reduce cutting force, suppress chatter vibration, and improve processing quality.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a design science, can be used for thin wall spare BTA, installation and debugging convenient and the high compound turning device of supersound indulging that is used for thin wall spare BTA of machining precision.
In order to solve the technical problem, the utility model adopts the following technical scheme: the ultrasonic longitudinal bending composite turning device for deep hole machining of thin-walled parts comprises a composite amplitude transformer, an energy transducer assembly, a sleeve and a tail dustproof cover, wherein the central line of the sleeve is horizontally arranged along the left-right direction, the composite amplitude transformer is coaxially arranged in the sleeve, the composite amplitude transformer sequentially comprises a conical amplitude transformer, a long vibration transmission rod, an index amplitude transformer and a short vibration transmission rod which are coaxially arranged from left to right, a vibration transmission rod flange is coaxially arranged at the front part of the long vibration transmission rod along the outer side, a plurality of chutes are circumferentially arranged at the outer side part of the index amplitude transformer, the conical amplitude transformer and the index amplitude transformer are in a cone structure with a thick front part and a thin part, the front end of the index amplitude transformer is equal to the outer diameter of the long vibration transmission rod, the rear end of the index amplitude transformer is equal to the outer diameter of the short vibration transmission rod, a cutter groove is radially arranged in the short vibration transmission rod, and a first threaded hole is axially arranged on the front end surface of the conical amplitude transformer, the energy converter component is arranged at the front end part of the conical amplitude transformer through a connecting bolt which is in threaded connection with the first threaded hole, an amplitude transformer flange is arranged on the outer circumference of the conical amplitude transformer in the same axial direction, a connecting ring is fixedly arranged on the inner wall of the rear end of the sleeve in the same axial direction, a left through second threaded hole and a right through second threaded hole are arranged on the connecting ring, a left through third threaded hole and a right through third threaded hole are arranged on the vibration transmission rod flange, the second threaded hole and the third threaded hole are fixedly connected through a connecting screw, a section of internal thread is arranged on the inner wall of the front side of the sleeve, a tail dust cover extends into the sleeve from the front end port of the sleeve and is in threaded connection with the sleeve, the rear end of, the energy converter component is located the afterbody shield and is connected with the aviation plug through the cable, and the aviation plug outside is connected with ultrasonic power through the cable.
The transducer subassembly is including all being located inside four piezoceramics pieces and four electrode slices of afterbody shield, connecting bolt sets up, four along the fore-and-aft horizontal direction piezoceramics piece and four the electrode slice cover is established on connecting bolt, and the piezoceramics piece with the electrode slice sets up in turn, connecting bolt's anterior threaded connection has the gland nut who is used for compressing tightly piezoceramics piece and electrode slice, and connecting bolt rear end threaded connection is in first screwed hole, adjacent two the positive negative pole of electrode slice passes through the wire and links to each other.
And heat-shrinkable insulating sleeves are sleeved outside all the piezoelectric ceramic pieces and the electrode plates.
The cross section of the cutter groove is of a square structure, a cutter bar is arranged in the cutter groove, a turning tool is arranged at one end of the cutter bar, a positioning bolt is connected to the rear end face of the short vibration transmission rod along the axial direction in a threaded manner, and the front end of the positioning bolt compresses the cutter bar.
The bottom of the sleeve is provided with an installation base.
Adopt above-mentioned technical scheme, the utility model discloses relative prior art has substantive characteristics and progress, specifically speaking, the utility model discloses a compound turning device of supersound longitudinal bending of thin wall spare deep-hole machining has:
1. the utility model discloses simplified the structure of current supersound turning device, whole supersound longitudinal bending compound turning device is convenient for install, easy operation, it is convenient to dismantle, compares with current deep hole processingequipment, and the device processed hole class part shape precision and position accuracy obtain improving, and the internal surface quality also obtains improving. The device has high compatibility with a common lathe or a numerical control lathe, enlarges the process range of the lathe, and improves the practical efficiency and the application range of the lathe.
2. The utility model discloses simple structure, rigidity is good, can effectively reduce the cutting force in the course of working, restraines and shimmys to can be used to the deep hole processing that the wall thickness is less than 1 mm's thin wall part.
3. The utility model discloses a compound type amplitude transformer, compound type amplitude transformer front end be conical amplitude transformer, the centre is long biography vibration rod, the rear end is index type amplitude transformer, connects short biography vibration rod behind the little terminal surface of index type amplitude transformer. The long vibration transmission rod can play a role in increasing the rigidity of the device, the structure is simplified, meanwhile, the vibration phenomenon can be reduced, and the deep hole machining quality is effectively improved.
4. The utility model discloses utilize the screw to fix the installation base on lathe revolving stage knife rest, ultrasonic power passes through cable and aviation plug connection, with ultrasonic power's signal input to the transducer subassembly, makes its high-frequency vibration who produces certain law, and then drives the lathe tool and produce the buckling amplitude, realizes ultrasonic turning. The whole device is small in size, simple to operate, high in machining precision compared with the existing turning device, and meanwhile machining efficiency is improved and production cost is reduced.
5. The utility model provides a connecting bolt, all piezoceramics piece and electrode slice are equallyd divide and do not are located pyrocondensation insulating sleeve intraductally to need pyrocondensation insulating sleeve's inner wall to paste tightly mutually with piezoceramics piece and electrode slice outer fringe, can prevent that unnecessary energy loss from appearing in the energy transmission course.
6. The method is characterized in that an energy converter component is arranged in front of a conical amplitude transformer, the conical amplitude transformer amplifies longitudinal vibration of the energy converter component and transmits the amplified longitudinal vibration to the index amplitude transformer through a long vibration transmission rod, a chute arranged outside the index amplitude transformer converts the longitudinal vibration transmitted by the long vibration transmission rod into longitudinal bending composite vibration, and the longitudinal bending vibration is transmitted to a cutter bar through a short vibration transmission rod, so that the longitudinal bending composite vibration of the turning tool is realized.
7. The utility model discloses fuse turning device and supersound auxiliary device together, install on center lathe or numerical control lathe through the revolving tool rest for solve the difficult problem of thin wall spare deep hole processing such as stereoplasm aluminum alloy, titanium alloy, enlarged the application range of lathe, easily implement widely, have good economic benefits's advantage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a block diagram of the transducer assembly of FIG. 1;
fig. 3 is a schematic view of the present invention installed on a machine tool for processing operation.
Detailed Description
As shown in fig. 1, 2 and 3, the ultrasonic longitudinal bending composite turning device for deep hole machining of thin-wall parts of the present invention comprises a composite amplitude transformer, a transducer assembly 1, a sleeve 2 and a tail dust cap 3, wherein the central line of the sleeve 2 is horizontally arranged along the left and right direction, the composite amplitude transformer is coaxially installed in the sleeve 2, the composite amplitude transformer sequentially comprises a conical amplitude transformer 4, a long vibration transmission rod 5, an exponential amplitude transformer 6 and a short vibration transmission rod 7 which are coaxially arranged from left to right, the front portion of the long vibration transmission rod 5 is coaxially provided with a vibration transmission rod flange 8 along the outer side, the outer side portion of the exponential amplitude transformer 6 is circumferentially provided with a plurality of chutes 9, the conical amplitude transformer 4 and the exponential amplitude transformer 6 are cone structures with a thick front portion and a thin portion, the front end of the exponential amplitude transformer 6 is equal to the outer diameter of the long vibration transmission rod 5, the rear end of the exponential amplitude transformer 6 is equal to the outer diameter of the short vibration transmission rod 7, a knife slot is arranged in the short vibration transmission rod 7 along the radial direction, a first threaded hole is arranged on the front end surface of the conical amplitude transformer 4 along the axial direction, the transducer component 1 is arranged on the front end part of the conical amplitude transformer 4 through a connecting bolt 10 which is in threaded connection with the first threaded hole, an amplitude transformer flange 11 is arranged on the outer circumference of the conical amplitude transformer 4 along the axial direction, a connecting ring is fixedly arranged on the inner wall of the rear end of the sleeve 2 along the axial direction, a left-right through second threaded hole is arranged on the connecting ring, a left-right through third threaded hole is arranged on the vibration transmission rod flange 8, the second threaded hole and the third threaded hole are fixedly connected through a connecting screw 12, a section of internal thread is arranged on the inner wall of the front side of the sleeve 2, the tail dust-proof cover 3 extends into the sleeve 2 from the front end port of the sleeve 2 and is in threaded connection with the sleeve 2, the rear end of the tail dust, the transducer assembly 1 is located at the tail dust cover 3 and is connected with the aviation plug 13 through a cable 23, and the outside of the aviation plug 13 is connected with the ultrasonic power supply 14 through the cable 23.
All the piezoelectric ceramic plates 15 and the electrode plates 16 are externally sleeved with heat-shrinkable insulating sleeves 17.
The cross section of the cutter groove is of a square structure, a cutter rod 18 is arranged in the cutter groove, a turning tool 22 is arranged at one end of the cutter rod 18, a positioning bolt 19 is in threaded connection with the rear end face of the short vibration transmission rod 7 along the axial direction, and the front end of the positioning bolt 19 compresses the cutter rod 18.
The bottom of the sleeve 2 is provided with a mounting base 20.
When carrying out deep hole machining, will the utility model discloses a fastening bolt presss from both sides tight installation base 20, assembles on numerical control lathe's revolving tool rest 21, then passes through cable 23 with ultrasonic power supply 14 and is connected with aviation plug 13, opens ultrasonic power supply 14 switch, shows current power information on ultrasonic power supply 14's the display screen, adjusts through the knob that adjusts on ultrasonic power supply 14 and obtains required ultrasonic frequency and electric current, and wherein ultrasonic frequency and electric current can show on ultrasonic power supply 14's display screen.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (5)
1. A compound turning device of supersound longitudinal bending for thin wall spare BTA which characterized in that: the composite type amplitude transformer comprises a composite type amplitude transformer, an energy transducer assembly, a sleeve and a tail dust cover, wherein the central line of the sleeve is horizontally arranged along the left and right directions, the composite type amplitude transformer is coaxially arranged in the sleeve, the composite type amplitude transformer sequentially comprises a conical amplitude transformer, a long vibration transmission rod, an index type amplitude transformer and a short vibration transmission rod which are coaxially arranged from left to right, a vibration transmission rod flange is coaxially arranged at the front part of the long vibration transmission rod along the outer side, a plurality of chutes are circumferentially arranged at the outer side part of the index type amplitude transformer, the conical amplitude transformer and the index type amplitude transformer are of a cone structure with a thick front part and a thin back part, the front end of the index type amplitude transformer is equal to the outer diameter of the long vibration transmission rod, the back end of the index type amplitude transformer is equal to the outer diameter of the short vibration transmission rod, a knife groove is radially arranged in the short vibration transmission rod, a first threaded hole is axially arranged on the front end face of the conical amplitude transformer, and the energy transducer assembly is connected with a connecting bolt in the first threaded hole at the front end The outer circumference of the conical amplitude transformer is provided with an amplitude transformer flange in the same axial direction, the inner wall of the rear end of the sleeve is provided with a connecting ring in the same axial direction, the connecting ring is provided with a left penetrating second threaded hole and a right penetrating third threaded hole, the left penetrating third threaded hole and the right penetrating third threaded hole are formed in the amplitude transformer flange and are fixedly connected through a connecting screw, the inner wall of the front side of the sleeve is provided with a section of internal thread, the tail dust cover extends into the sleeve from the front end of the sleeve and is in threaded connection with the sleeve, the rear end of the tail dust cover is in top pressure fit with the front side face of the amplitude transformer flange, the aviation plug is mounted in the middle of the front end of the tail dust cover, the transducer assembly is located on the tail dust.
2. The ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-wall parts according to claim 1, is characterized in that: the transducer subassembly is including all being located inside four piezoceramics pieces and four electrode slices of afterbody shield, connecting bolt sets up, four along the fore-and-aft horizontal direction piezoceramics piece and four the electrode slice cover is established on connecting bolt, and the piezoceramics piece with the electrode slice sets up in turn, connecting bolt's anterior threaded connection has the gland nut who is used for compressing tightly piezoceramics piece and electrode slice, and connecting bolt rear end threaded connection is in first screwed hole, adjacent two the positive negative pole of electrode slice passes through the wire and links to each other.
3. The ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-walled parts according to claim 2, is characterized in that: and heat-shrinkable insulating sleeves are sleeved outside all the piezoelectric ceramic pieces and the electrode plates.
4. The ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-wall parts according to claim 1, is characterized in that: the cross section of the cutter groove is of a square structure, a cutter bar is arranged in the cutter groove, a turning tool is arranged at one end of the cutter bar, a positioning bolt is connected to the rear end face of the short vibration transmission rod along the axial direction in a threaded manner, and the front end of the positioning bolt compresses the cutter bar.
5. The ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-wall parts according to claim 1, is characterized in that: the bottom of the sleeve is provided with an installation base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920463438.1U CN209918894U (en) | 2019-04-08 | 2019-04-08 | Ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-walled workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920463438.1U CN209918894U (en) | 2019-04-08 | 2019-04-08 | Ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-walled workpiece |
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| CN209918894U true CN209918894U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920463438.1U Active CN209918894U (en) | 2019-04-08 | 2019-04-08 | Ultrasonic longitudinal-bending composite turning device for deep hole machining of thin-walled workpiece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014170A (en) * | 2019-04-08 | 2019-07-16 | 河南理工大学 | Ultrasound for thin-wall part deep hole machining indulges curved compound truning fixture |
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2019
- 2019-04-08 CN CN201920463438.1U patent/CN209918894U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014170A (en) * | 2019-04-08 | 2019-07-16 | 河南理工大学 | Ultrasound for thin-wall part deep hole machining indulges curved compound truning fixture |
| CN110014170B (en) * | 2019-04-08 | 2024-01-23 | 河南理工大学 | Ultrasonic longitudinal bending composite turning device for deep hole machining of thin-wall part |
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