CN101823084B - Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter - Google Patents
Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter Download PDFInfo
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- CN101823084B CN101823084B CN2010101591246A CN201010159124A CN101823084B CN 101823084 B CN101823084 B CN 101823084B CN 2010101591246 A CN2010101591246 A CN 2010101591246A CN 201010159124 A CN201010159124 A CN 201010159124A CN 101823084 B CN101823084 B CN 101823084B
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- 238000000641 cold extrusion Methods 0.000 title abstract description 15
- 238000003754 machining Methods 0.000 title abstract description 8
- 230000010355 oscillation Effects 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 13
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 208000012886 Vertigo Diseases 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
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- 241000196324 Embryophyta Species 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The invention relates to an auxiliary cold extrusion machining device with large diameter and inner thread based on an electromagnetic vibration exciter. The auxiliary cold extrusion machining device is characterized by comprising a base (4), a fixing plate (7), a torsional vibration plate (3) and an electromagnetic vibration exciter (5), wherein the base (4) is arranged on a machine tool slide carriage (8); the fixing plate (7) is arranged on the base (4) and equipped with an adjustable length to the machine tool slide carriage (8); one end of the fixing plate (7), which is far away from an extrusion tap fixture (1), is provided with a stretching screw (6); the fixing plate is also provided with at least one guide slot (9); the torsional vibration plate (3) is arranged on the fixing plate (7) through a connection bolt (10) which has a guide function and penetrates through the guide slot (9) on the fixing plate (7); one end of the torsional vibration plate (3) abuts against a torsional vibration rod (2) arranged on the extrusion tap fixture (1), and the other end abuts against the stretching screw (6); and the electromagnetic vibration exciter is fixedly arranged on the trosional vibration plate (3) and drives the torsional vibration plate (3) to vibrate synchronously. The invention has the advantages of simple structure, flexible operation and convenient realization and is beneficial to improving processing quality, prolonging the service life of cutters and reducing production cost.
Description
Technical field
The present invention relates to a kind of auxiliary cold extrusion machining device with large diameter and inner thread, relate in particular to the auxiliary large diameter and inner thread cold extrusion processing unit (plant) of a kind of utilization vibration process technology, specifically a kind of auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic exciter.
Background technology
Develop rapidly along with modern industry, in industries such as the Aeronautics and Astronautics of China, bullet train, oil drilling, communications and transportation, occurred more and more much load, at a high speed, precision instrument and part under the Dynamic Load Factor, the performance of this double thread securing member and antifatigue manufacturing technology thereof are had higher requirement, not only require precision height, hardness height, the surface roughness of screw thread low, and require screw thread should have high-quality surface integrity.As everyone knows, the modern mechanical manufacturing is to few cutting, or even there is not a cutting direction development, come internal thread is carried out cold extrusion processing by the moulding shaping principle of utilizing metal, because thereby the moulding distortion of workpiece tissue has improved institutional framework, obtain the surface of good integrality, improved the mechanical performance of workpiece.
At present, known to the large diameter and inner thread cold extrusion on lathe, process, clamping workpiece on machine chuck, screw tap by the special fixture clamping on the slide carriage or on the tailstock tool.Before the machine tool chief axis running, mix up the speed of mainshaft, open lathe then, the screw tap feeding is finished the cold extrusion processing of internal thread.But because processing is large diameter and inner thread, its extrusion torque is big, crush zone temperature height, cooling fluid are not easy to enter crush zone and cause fractureing of thread forming tap easily.The thread surface quality that squeezes out simultaneously is also enough undesirable.And Cold Forming of Internal Thread vibration processing also just is applied in the vibration processing of minor diameter internal thread.
Therefore, up to the present, also there are thread forming tap frangibility, the difficult problem that flows into crush zone of cooling fluid in the large diameter Cold Forming of Internal Thread process, and the unfavorable problem of surface integrity that machines rear thread.Still there is not a kind of secondary process device that can improve the large diameter and inner thread cold-extrusion processing quality practical, simple in structure.
Summary of the invention
The objective of the invention is at the screw tap frangibility that exists in the existing large diameter and inner thread cold extrusion process, the difficult problem that flows into crush zone of cooling fluid, and the unfavorable problem of the surface integrity that machines rear thread, invent a kind of auxiliary cold extrusion machining device with large diameter and inner thread that is widely used in the large diameter and inner thread cold-stamped based on electromagnetic exciter.
Technical scheme of the present invention is:
A kind of auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic exciter is characterized in that it comprises:
One base 4, this base 4 is installed on the machine slide 8;
One fixed head 7, this fixed head 7 are installed on the described base 4 and the adjustable height of a slide carriage of disembarking; On the end of described fixed head 7, be equipped with and adjust screw rod 6 away from thread forming tap anchor clamps 1; On described fixed head 7, also offer a gathering sill 9 at least;
One torsional oscillation plate 3, it is installed on the fixed head 7 by the connecting bolt 10 that play the guiding role, pass the gathering sill 9 on the fixed head 7 and can only moves as straight line along gathering sill 9; One end of torsional oscillation plate 3 and the torsional oscillation bar 2 on the thread forming tap anchor clamps 1 offset, and the other end and aforesaid adjustment screw rod 6 offset;
One electromagnetic exciter 5, it is fixedly installed on the torsional oscillation plate 3 and drives 3 synchronous vibrations of torsional oscillation plate.
Described base 4 structure that takes the shape of the letter U, its bottom links to each other with machine slide 8 by securing member, on its dual-side, all offer strip slotted eye 11, in the screw of fixed head 7 sides, fixed head 7 is fixed on the base 4 thereby hold-down screw installs these strip slotted eye 11 spinnings.
Described fixed head 7 is provided with installs the chimb 12 of adjusting screw rod 6.
Described fixed head 7 is provided with the strip groove 13 that the fastening bolt size with Motionless electromagnetic vibrator 5 matches, and wherein and not produces interference so that the bolt head of tap bolt can be sunken to.
The invention has the beneficial effects as follows:
(1) fully absorbed the advantage of vibration processing in large diameter and inner thread cold extrusion processing, on the basis of the high rigidity that has guaranteed internal thread, low surface roughness and good anti-fatigue performance, improve the service life of thread forming tap greatly and reduced extrusion torque, life-span can prolong more than five times on year-on-year basis, significantly improved the crudy of internal thread simultaneously, surface integrity is improved at all, and roughness can improve two more than the grade.
(2) the present invention also have simple in structure, flexible operation, the advantage of being convenient to realize.
(3) equipment of the present invention can be directly installed on the existing lathe slide carriage, thereby has small investment, the advantage of instant effect.
(4) drive the generation vibration displacement of torsional oscillation plate on the slideway of fixed head by electromagnetic exciter, the torsional oscillation bar that is contained on the thread forming tap is produced bump, form the vibration processing of Cold Forming of Internal Thread.Thereby improved the service life of thread forming tap, greatly reduce extrusion torque, improved the crudy of internal thread simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a torsional oscillation plate structure schematic diagram of the present invention.
Fig. 3 is a fixed head structural representation of the present invention.
Fig. 4 is a understructure schematic diagram of the present invention.
Fig. 5 is the side view of Fig. 4.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Shown in Fig. 1-5.
A kind of auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic exciter, it is mainly by base 4, fixed head 7, torsional oscillation plate 3 and electromagnetic exciter 5 are formed, it is that height and position is adjustable that fixed head 7 is installed on the base 4, base 4 is fixedly mounted on the machine slide 8, for easy to adjust, base 4 cocoas adopt the U-shaped structure, torsional oscillation plate 3 is installed on the fixed head 7, its end and the torsional oscillation bar 2 on the thread forming tap anchor clamps 1 offset, the other end offsets with the adjustment screw rod 6 that is equipped with on the chimb 12 on fixed head 7 one ends, thread forming tap anchor clamps 1 and go up that the torsional oscillation bar of installing 2 is all same as the prior art maybe can be adopted prior art and realized with reference to relevant textbook; Electromagnetic exciter 5 is installed on the torsional oscillation plate 3 and has 3 synchronous vibrations of torsional oscillation plate, and electromagnetic exciter 5 can directly be chosen from market, preferably chooses the adjustable electricity of excited frequency and closes vibrator.As shown in Figure 1.
During concrete enforcement, fixed head 7 can adopt structure as shown in Figure 3, and this fixed head 7 is installed on the described base 4 and the adjustable height of a slide carriage of disembarking; On the end of described fixed head 7, be equipped with and adjust screw rod 6 away from thread forming tap anchor clamps 1; On described fixed head 7, also offer a gathering sill 9 at least; In addition, also can be provided with the strip groove 13 that the fastening bolt size with Motionless electromagnetic vibrator 5 matches on the fixed head 7, wherein and not produce interference so that the bolt head of fastening bolt can be sunken to.
Torsional oscillation plate 3 can adopt structure as shown in Figure 2, and it is installed on the fixed head 7 by the connecting bolt 10 that play the guiding role, pass the gathering sill 9 on the fixed head 7 and can only moves as straight line along gathering sill 9; One end of torsional oscillation plate 3 and the torsional oscillation bar 2 on the thread forming tap anchor clamps 1 offset, and the other end and aforesaid adjustment screw rod 6 offset.
Base 4 can adopt the U-shaped structure shown in Fig. 4,5, its bottom links to each other with machine slide 8 by securing member, on its dual-side, all offer strip slotted eye 11, in the screw of fixed head 7 sides, fixed head 7 is fixed on the base 4 thereby hold-down screw installs these strip slotted eye 11 spinnings.
Using method of the present invention is as follows:
At first, choose the vibration source of electromagnetic exciter 5, it will produced thread forming tap on the torsional oscillation plate 3 of torsional oscillation by bolted as auxiliary vibration processing.
Secondly, by in the gathering sill 9 (being horizontal slideway) that is bolted to fixed head 7, making bolt drive torsional oscillation plate 3 can slide in the gathering sill 9 of fixed head 7 with torsional oscillation plate 3.
The 3rd, base 4 is fixed on the slide carriage 8 of lathe, the position of adjusting slide carriage is to suitable position.
The 4th, fixed head 7 is fixed to by screw on the strip slotted eye 11 (being vertical slideway) of base 4 sides, adjust fixed head 7 and behind suitable height, screw-driving is fixed.
The 5th, the position of adjusting slide carriage 8 makes the bump end of torsional oscillation plate 3 just contact with torsional oscillation bar 2 on being contained in thread forming tap anchor clamps 1.And the tail end of torsional oscillation plate 3 withstood it by adjusting bolt 6, preventing that torsional oscillation plate 3 from moving backward with vibrator 5, forfeiture is to the effect of impact of torsional oscillation bar 2.In process, pass through the straight-line oscillation of electromagnetic exciter 5, drive torsional oscillation plate 3 and the synchronous straight-line oscillation of its generation, thereby make the bump end of torsional oscillation plate 3 produce the low frequency bump, and then torsional oscillation bar 2 drive thread forming tap generation low frequency torsional oscillation to the torsional oscillation bar on the thread forming tap anchor clamps 12.Given full play to vibration processing can significantly improve the service life of thread forming tap, greatly reduce extrusion torque, improved the advantage of the crudy of internal thread simultaneously.
Through actual in-process measurement, after adopting exciting servicing unit of the present invention, can prolong the service life of screw tap more than 5 times, and phenomenon does not fracture, the surface integrity of the screw thread that is pushed obviously improves, yield rate significantly improves, simultaneously the surface roughness of thread also be improved significantly, can improve 2 more than the grade.
Claims (4)
1. Cold Forming of Internal Thread secondary process device based on electromagnetic exciter is characterized in that it comprises:
One base (4), this base (4) are installed on the machine slide (8);
One fixed head (7), this fixed head (7) are installed on the described base (4) and the adjustable height of a slide carriage of disembarking; On the end of described fixed head (7), be equipped with and adjust screw rod (6) away from thread forming tap anchor clamps (1); On described fixed head (7), also offer a gathering sill (9) at least;
One torsional oscillation plate (3), it is installed on the fixed head (7) by the connecting bolt (10) that play the guiding role, pass the gathering sill (9) on the fixed head (7); Torsional oscillation bar (2) on one end of torsional oscillation plate (3) and the thread forming tap anchor clamps (1) offsets, and the other end and aforesaid adjustment screw rod (6) offset;
One electromagnetic exciter (5), it is fixedly installed to torsional oscillation plate (3) and goes up and drive torsional oscillation plate (3) synchronous vibration.
2. the Cold Forming of Internal Thread secondary process device based on electromagnetic exciter according to claim 1, it is characterized in that described base (4) structure that takes the shape of the letter U, its bottom links to each other with machine slide (8) by securing member, on its dual-side, all offer strip slotted eye (11), hold-down screw install this strip slotted eye (11) spinning at fixed head (7) thus in the screw of side fixed head (7) is fixed on the base (4).
3. the Cold Forming of Internal Thread secondary process device based on electromagnetic exciter according to claim 1 is characterized in that. described fixed head (7) is provided with installs the chimb (12) of adjusting screw rod (6).
4. the Cold Forming of Internal Thread secondary process device based on electromagnetic exciter according to claim 1 is characterized in that described fixed head (7) is provided with the strip groove (13) that the fastening bolt size with Motionless electromagnetic vibrator (5) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101591246A CN101823084B (en) | 2010-04-28 | 2010-04-28 | Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101591246A CN101823084B (en) | 2010-04-28 | 2010-04-28 | Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101823084A CN101823084A (en) | 2010-09-08 |
| CN101823084B true CN101823084B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101591246A Expired - Fee Related CN101823084B (en) | 2010-04-28 | 2010-04-28 | Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728640B (en) * | 2012-06-14 | 2014-06-11 | 南京航空航天大学 | Method for determining torque of internal thread cold extrusion molding |
| CN103419003B (en) * | 2013-09-18 | 2016-04-20 | 浙江向隆机械有限公司 | A kind of constant velocity driveshaft ball cage processing technology |
| CN107282673A (en) * | 2017-08-17 | 2017-10-24 | 江苏星河阀门有限公司 | A kind of steel alloy Cold Forming of Internal Thread technique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU561585A1 (en) * | 1975-10-29 | 1977-06-15 | Магнитогорский горно-металлургический институт им.Г.И.Носова | Device for drawing metal using tool vibrations |
| DE3934621C2 (en) * | 1989-10-17 | 1997-09-04 | Willi Buchwald | Tool for cutting threads without cutting |
| DE10318203A1 (en) * | 2003-04-22 | 2004-11-11 | Gühring, Jörg, Dr. | Method, tool and device for producing threads |
| CN1775440A (en) * | 2005-12-06 | 2006-05-24 | 张有龙 | Packaging container steel bucket sealer helicoidal internal thread cold-extrusion shaping method |
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Application publication date: 20100908 Assignee: Jiangsu Xinghe Valve Co., Ltd. Assignor: Nanjing University of Aeronautics and Astronautics Contract record no.: 2015320000170 Denomination of invention: Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter Granted publication date: 20111221 License type: Exclusive License Record date: 20150410 |
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Granted publication date: 20111221 Termination date: 20210428 |
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