CN2584328Y - Vibration bit for deep hole and hardworking material - Google Patents
Vibration bit for deep hole and hardworking material Download PDFInfo
- Publication number
- CN2584328Y CN2584328Y CN 02290929 CN02290929U CN2584328Y CN 2584328 Y CN2584328 Y CN 2584328Y CN 02290929 CN02290929 CN 02290929 CN 02290929 U CN02290929 U CN 02290929U CN 2584328 Y CN2584328 Y CN 2584328Y
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- China
- Prior art keywords
- bit
- drill bit
- vibration
- stainless steel
- piezo
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- Expired - Fee Related
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Abstract
The utility model relates to a vibration bit for deep holes and hardworking materials. The utility model comprises the bit. The utility model is characterized in that the vibration bit for deep holes and hardworking materials is composed of a casing, piezoelectric crystals, a piezoelectric crystal controller, a spring shim, a stainless steel protection cover and fixing screws. The piezoelectric crystals are arranged in the stainless steel protection cover, forming one vibration body. The spring shim is arranged between the stainless steel protection cover and a bit seat. The casing is connected with the stainless steel protection cover by the fixing screws. A truncated cone-shaped bit fixing hole is arranged on the bit seat for connecting the bit. The piezoelectric crystal controller is connected with the piezoelectric crystals by wires. The utility model has the advantages that the vibration bit is suitable for drilling intractable materials with a special engineering structure, fiber materials, etc.; high processing precision can be obtained; the utility model can be used for deep hole drilling and high precision drilling; processing quality and efficiency can be enhanced; the spring shim can protect the piezoelectric crystals for reducing damage to the piezoelectric crystals due to installation errors. The utility model also has the advantages of simple structure, low manufacture cost, convenient regulation, convenient operation and maintenance and convenient extensive application.
Description
(1) technical field:
The utility model relates to a kind of drill bit, particularly a kind of vibration drill bit that is used for deep hole and difficult-to-machine material.
(2) background technology:
At present, drilling processing is an important technology of field of machining, because drilling processing is to carry out under the limited semi-closed state of chip space, therefore, cutting fluid is difficult to be injected into cutting region, and the friction between smear metal, cutter and the workpiece is very big, especially under the situation of long-time continuous cutting, produce a large amount of high temperature smear metals and very high cutting temperature, make that cutter is easy to wear, machining accuracy reduces, and percent defective is raise.For this reason, how controlling smear metal and enable smooth discharge, is that especially Machining Small-deep Hole must the preferential problem that solves for deep hole machining.Conventional deep hole processing cutter is to rely on to leave suitable chip breaker on the cutting edge and come forced chip-cutting, but the poor operability of this cutter is difficult to accurately hold the smear metal size.Simultaneously, along with science and technology development, structural timbers with property come into operation more, their drilling processability is poorer, chip breaking is also solid further difficult, conventional deep hole processing cutter has lagged behind the requirement of modern manufacturing industry to material and precision, therefore, and must the new drilling machining tool of research and development.
(3) summary of the invention:
The purpose of this utility model is to design a kind of vibration drill bit that is used for deep hole and difficult-to-machine material, and it is solved the above-mentioned trouble in deep hole machining and the difficult-to-machine material processing, is a kind of practical novel vibrating drill bit.
The technical solution of the utility model: a kind of vibration drill bit that is used for deep hole and difficult-to-machine material, comprise drill bit, it is characterized in that it is made of shell, piezo-electric crystal, piezo-electric crystal controller, spring shim, stainless steel protection cover and hold-down screw, said piezo-electric crystal places and constitutes a vibrating body in the stainless steel protection cover, between stainless steel protection cover and drill headstock spring shim is arranged, shell is connected with the stainless steel protection cover according to hold-down screw, and frustum drill bit fixing hole is arranged on the drill headstock of said connection drill bit; Said piezo-electric crystal controller connects piezo-electric crystal according to lead.
Above-mentioned said shell stiff end can be flange form, also can be the frustum formula.
Piezo-electric crystal installing hole on the above-mentioned said shell can be the circumference quarter, also can be circumference three equal parts or circumference halves.
The drill headstock of the connection drill bit on the above-mentioned said shell can be frustum drill bit fixing hole, also can be the three-pawl type chuck.
Operation principle of the present utility model is: in vibration drilling processing; a vibrational system is formed in piezo-electric crystal and stainless steel protection cover, spring shim, shell, drill bit and load jointly, controls the vibration amplitude of drill bit by the vibration number of change controller output frequency Adjustment System response, with output current value.When system resonance, drill bit has peak swing, the energy needed minimum.If the vibration frequency of piezo-electric crystal departs from the system resonance frequency, the drill bit amplitude will reduce, and for keeping amplitude stability, just must increase the output energy.Mainly by the equivalent mass of system and the geometry decision of drill bit, still, because the heating of system, resonance point has certain drift to the resonant frequency of resonator system; And the variation of load can cause that the resonance ratio rate changes in a wider context.Especially when point of a knife contact with workpiece instantaneous, load variations is violent, causes resonance point to change significantly, can exceed the peak power output of piezo-electric crystal controller in the time of seriously and takes place to vibrate and stop phenomenon.Therefore, make the piezo-electric crystal controller adjust vibration frequency automatically, it remained operating near the resonance point, obtain peak swing with least energy according to the load variations situation of system, with keep continuing, stable vibration drilling.
The using method of the present utility model and the course of work are: piezo-electric crystal in the stainless steel guard shield and stainless steel guard shield are formed a vibrating body, through spring shim pass to the conjuncted drill headstock of shell on, the drill headstock of shell drives drill bit and vibrates together.Piezo-electric crystal control output frequency is the electric current of f=20～50kHz, makes drill bit obtain amplitude A=10～25um, the dither on the cutting dosages direction.In drilling processing, utilize piezo-electric crystal to order about the drill bit up-down vibration, limited machining energy concentrated emit, make continuous process intermittently for impulse form and change interrupted instantaneous processing into, it is little little section that drilling cuttings can be divided into, be adapted at improving machining accuracy in the boring processing of deep hole and fibrous material (being difficult-to-machine material).Vibration drilling is to impose the controllable vibration clocklike of certain parameter (for example, vibration frequency f and amplitude A) to drill bit in traditional drilling process.In the drilling process, periodically leave and contact between cutter and the workpiece, the size of the drilling amount of feeding and speed is constantly changing, the appearance of the relative acceleration that produces owing to the variation of drilling speed, make vibration drilling can utilize add the matching relationship of vibration parameters and cutting data, the forming process of artificial control smear metal, no matter promptly process which kind of workpiece material, take the chip breaking reliably of which kind of cutting dosages and cutting-tool angle, changed the traditional mode of chip breaking effect dependence chip breaker size and cutting dosages fully, realized to the smear metal size from main control, this deep hole machining for the chip removal difficulty is significant, has solved chip breaking and the chip removal problem in the deep hole machining effectively.
Superiority of the present utility model is: 1, be applicable to the boring of the material, fibrous material etc. of unmanageable special engineering structure, can obtain higher processing precision; 2, can be used in the drilling and the high accuracy drilling of deep hole, improved crudy and efficient; 3, spring shim has been installed and has protected piezo-electric crystal effectively between piezo-electric crystal and shell, reduced the damage of alignment error piezo-electric crystal; 4, piezo-electric crystal is installed in enclosure, makes shell that very strong anti-torsional strength be arranged; 5, the vibration parameters of piezo crystal vibration drilling device is easy to control; 6, simple in structure, cheap, reconcile convenient, operation and maintenance is convenient, therefore can be convenient to extensive use.
(4) description of drawings:
Accompanying drawing is the related a kind of overall structure schematic diagram that is used for the vibration drill bit of deep hole and difficult-to-machine material of the utility model.
Wherein: 1 is that shell, 2 is that piezo-electric crystal, 3 is that stainless steel protection cover, 4 is that spring shim, 5 is that drill bit, 6 is that hold-down screw, 7 is an installing hole.
(5) specific embodiment:
Embodiment: a kind of vibration drill bit (seeing figure) that is used for deep hole and difficult-to-machine material, comprise drill bit, it is characterized in that it is made of shell 1, piezo-electric crystal 2, piezo-electric crystal controller, spring shim 4, stainless steel protection cover 3 and hold-down screw 6, said piezo-electric crystal 2 places and constitutes a vibrating body in the stainless steel protection cover 3, spring shim 4 is arranged between stainless steel protection cover 3 and drill headstock, shell 1 is connected with stainless steel protection cover 3 according to hold-down screw 6, and frustum drill bit fixing hole (seeing figure) is arranged on the drill headstock of said connection drill bit; Said piezo-electric crystal controller connects piezo-electric crystal 2 according to lead.
Above-mentioned said shell 1 is a flange form.
Piezo-electric crystal installing hole on the above-mentioned said shell 1 is circumference quarter (seeing figure).
Claims (4)
1, a kind of vibration drill bit that is used for deep hole and difficult-to-machine material, comprise drill bit, it is characterized in that it is made of shell, piezo-electric crystal, piezo-electric crystal controller, spring shim, stainless steel protection cover and hold-down screw, said piezo-electric crystal places and constitutes a vibrating body in the stainless steel protection cover, between stainless steel protection cover and drill headstock spring shim is arranged, shell is connected with the stainless steel protection cover according to hold-down screw, and frustum drill bit fixing hole is arranged on the drill headstock of said connection drill bit; Said piezo-electric crystal controller connects piezo-electric crystal according to lead.
2,, it is characterized in that said shell can be flange form, also can be the frustum formula according to the said a kind of vibration drill bit that is used for deep hole and difficult-to-machine material of claim 1.
3,, it is characterized in that the piezo-electric crystal installing hole on the said shell can be for the circumference quarter, also can be circumference three equal parts or circumference halves according to the said a kind of vibration drill bit that is used for deep hole and difficult-to-machine material of claim 1.
4,, it is characterized in that the drill headstock of the connection drill bit on the said shell also can be the scroll chuck formula according to the said a kind of vibration drill bit that is used for deep hole and difficult-to-machine material of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290929 CN2584328Y (en) | 2002-12-13 | 2002-12-13 | Vibration bit for deep hole and hardworking material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290929 CN2584328Y (en) | 2002-12-13 | 2002-12-13 | Vibration bit for deep hole and hardworking material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584328Y true CN2584328Y (en) | 2003-11-05 |
Family
ID=33749961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02290929 Expired - Fee Related CN2584328Y (en) | 2002-12-13 | 2002-12-13 | Vibration bit for deep hole and hardworking material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584328Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304153C (en) * | 2005-04-14 | 2007-03-14 | 上海交通大学 | Ultrasonic elliptically vibrating boring process |
| CN102548690A (en) * | 2009-04-28 | 2012-07-04 | Arts公司 | Drilling head with axial vibrations |
| CN104271294A (en) * | 2012-04-03 | 2015-01-07 | 技术研究与创新基金会 | Tool holder device |
| CN107052401A (en) * | 2017-05-15 | 2017-08-18 | 北京航空航天大学 | A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining |
| CN108637290A (en) * | 2018-05-21 | 2018-10-12 | 晋西工业集团有限责任公司 | A kind of processing method of deep hole |
-
2002
- 2002-12-13 CN CN 02290929 patent/CN2584328Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304153C (en) * | 2005-04-14 | 2007-03-14 | 上海交通大学 | Ultrasonic elliptically vibrating boring process |
| CN102548690A (en) * | 2009-04-28 | 2012-07-04 | Arts公司 | Drilling head with axial vibrations |
| CN102548690B (en) * | 2009-04-28 | 2014-11-05 | Arts公司 | Drilling head with axial vibrations |
| CN104271294A (en) * | 2012-04-03 | 2015-01-07 | 技术研究与创新基金会 | Tool holder device |
| CN104271294B (en) * | 2012-04-03 | 2016-08-24 | 技术研究与创新基金会 | Knife rest equipment |
| CN107052401A (en) * | 2017-05-15 | 2017-08-18 | 北京航空航天大学 | A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining |
| CN107052401B (en) * | 2017-05-15 | 2018-08-10 | 北京航空航天大学 | A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining |
| CN108637290A (en) * | 2018-05-21 | 2018-10-12 | 晋西工业集团有限责任公司 | A kind of processing method of deep hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |