CN106001337B - One kind extruding internal thread low frequency torsional excitation device - Google Patents
One kind extruding internal thread low frequency torsional excitation device Download PDFInfo
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- CN106001337B CN106001337B CN201610400689.6A CN201610400689A CN106001337B CN 106001337 B CN106001337 B CN 106001337B CN 201610400689 A CN201610400689 A CN 201610400689A CN 106001337 B CN106001337 B CN 106001337B
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- main shaft
- low frequency
- tie rod
- swing arm
- internal thread
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- 230000005284 excitation Effects 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000641 cold extrusion Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019589 hardness Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/08—Making helical bodies or bodies having parts of helical shape internal screw-threads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Forging (AREA)
Abstract
One kind extruding internal thread low frequency torsional excitation device, it includes thread forming tap（3C）, main shaft（1A）, thread forming tap（3C）Installed in main shaft（1A）One end in, it is characterized in that described main shaft（1A）The other end be connected with and can make main shaft（1A）Produce the swing arm rocker device of low frequency torsional excitation（2）, swing arm rocker device（2）It is connected with drive mechanism；Main shaft（1A）In be provided with for preventing taper grip shank（3A）The tie rod of whereabouts（1I）, tie rod（1I）Lower end and grip shank（3A）It is connected, tie rod（1I）Upper end be arranged on dop retainer（1K）In, dop retainer（1K）In three-jaw chuck is installed（1H）, three-jaw card end（1H）One end insertion main shaft（1A）On positioning hole in, in tie rod（1I）Upper end be installed with tightening nut（1J）, tightening nut（1J）With three-jaw chuck（1H）It is pedestal by tie rod（1I）Tension is positioned at main shaft（1A）In.The present invention is simple in construction, and exciting effect is good, can improve friction reduction extrusion torque, improve processing efficiency and crudy.
Description
Technical field
The present invention relates to a kind of machinery processing apparatus, especially a kind of Cold Forming of Internal Thread processing unit (plant), specifically
One kind extruding internal thread low frequency torsional excitation device.
Background technology
The method of internal thread machining is many in modern mechanical manufacturing：In addition to machining, also cast, forge, weld, rush
Pressure, extruding etc.；And Cold Forming of Internal Thread technology is a kind of female thread machining method of new development in recent years, i.e., in room temperature condition
Under, cause metal to produce Plastic Flow by the effect of screw tap rib tooth on prefabricated workpiece bottom outlet using thread forming tap, from
And form the technical process of internal thread.Assisted extrusion tapping is vibrated, is folded on the basis of workpiece and thread forming tap relative motion
Plus a regular and controllable vibration, so that forming pulsed squeezes tooth.Original continuously extruded process is become present by it
Interrupted extrusion process, by different small impulse actions in screw tap and workpiece combination interface, forms Intermittent Contact, reduction rubs
Wipe.Internal thread cold-extrusion shaping make it that surface quality, dimensional accuracy, stock utilization and the mechanical performance of internal thread product are all excellent
In traditional internal thread machining mode, cold extrusion internal thread all surpasses in physical properties such as tensile strength, fatigue behaviour, case hardnesses
The internal thread processed with traditional approach is crossed, it is the important component of antifatigue process technology.But for extrusion process, squeeze
Press moment of torsion big, high is required to process equipment, then the present invention is applied in internal thread extrusion process using Low Frequency Torsional Vibration, with
Moment of torsion is reduced, belongs to Compound Machining mode.
The content of the invention
The purpose of the present invention is to only rely on simple peripheral force for internal thread and carry out extruding to have that extruding force is excessive, screw tap
The problem of frangibility, processing efficiency and quality are difficult to improve, a kind of extruding internal thread low frequency torsional excitation device of design.
The technical scheme is that：
One kind extruding internal thread low frequency torsional excitation device, it includes thread forming tap 3C, and main shaft 1A, thread forming tap 3C leads to
Cross quick change set 3B and taper grip shank 3A to be arranged in main shaft 1A one end, main shaft 1A passes through upper angular contact ball bearing 1E and inferior horn
Contact ball bearing 1F is arranged on lathe, it is characterized in that the described main shaft 1A other end is connected with main shaft 1A can be made to produce low frequency
The swing arm rocker device 2 of torsional excitation, swing arm rocker device 2 is connected with drive mechanism, main shaft 1A low frequency reverse be delivered to it is crowded
On silk pressing cone 3C；Be provided with main shaft 1A for prevent taper grip shank 3A fall tie rod 1I, tie rod 1I lower end with
Grip shank 3A is connected by screw thread, and tie rod 1I upper end is arranged in dop retainer 1K, is provided with dop retainer 1K
So as to realize the connection with main shaft 1A in positioning hole on three-jaw chuck 1H, three-jaw card end 1H one end insertion main shaft 1A, drawing
Tight bar 1I upper end is installed with tightening nut 1J, and tie rod 1I is tensed and is positioned at by tightening nut 1J by pedestal of three-jaw chuck 1H
In main shaft 1A, main shaft 1A torsional excitation is transferred on tie rod 1I by three-jaw chuck 1H simultaneously, and tie rod 11 is also by main shaft
Low frequency reverse superposition be delivered to thread forming tap 3C, so as to realize double-acting type Low Frequency Torsional Vibration extrusion process.
Described swing arm rocker device 2 is connected by branch sleeve 1B with main shaft 1A, and branch sleeve 1B passes through with main shaft 1A
Interior external splines connection.
It is separated by between described upper angular contact ball bearing 1E and lower angular contact ball bearing 1F by axle sleeve 1D, upper angular contact ball
Bearing 1E realizes axially real position by bearing nut 1C and axle sleeve 1D.
The tabletting 1G of centering is set with described tie rod 1I, tabletting 1G is stacked on the tabletting seat 1M in main shaft.
The quantity of described swing arm rocker device 2 is two, and they are symmetrically mounted on main shaft, one of swing arm rocking bar
The cantilever end of mechanism 2 is hinged and connected to produce low frequency torsion, the cantilever of another swing arm rocker device 2 with crank-type power unit 5
End is connected to realize the reset of low frequency torsion with elastic torque balanced controls 4.
Beneficial effects of the present invention：
The achievable different size different materials Cold Forming of Internal Thread processing of the present invention, reduces internal thread extrusion torque, carries
The surface quality and fatigue resistance of high processed screw thread.It is different such as the metric system tooth, closely-pitched, trapezoidal tooth of different size
Stainless steel, high-strength steel, titanium alloy of material etc..
Cold extrusion internal thread has been above in physical properties such as tensile strength, fatigue behaviour, case hardnesses and has used traditional approach
The internal thread of processing, it is the important component of antifatigue process technology.The surface quality of internal thread product, size after processing
Precision, stock utilization and mechanical performance are better than traditional cutting type Screw thread process method.
The present invention is simple in construction, easily manufactured, and main shaft and tie rod can produce corresponding low frequency and reverse, and realize double acting
Effect, machining accuracy and efficiency are better than existing low-frequency vibration mechanism.The present invention can improve friction reduction extrusion torque, improve
Processing efficiency and crudy.
Brief description of the drawings
Fig. 1 is the contour structures schematic diagram of related low frequency torsion device of the invention.
The internal structure schematic diagram of the main shaft of Fig. 2 present invention.
Fig. 3 is Fig. 1 dimensional decomposition structure diagram.
Fig. 4 is the dimensional structure diagram of the crank-type power unit of the present invention.
Fig. 5 is Fig. 4 overlooking the structure diagram.
Fig. 6 is the gear schematic diagram of the crank-type power unit of the present invention.
Fig. 7 is Fig. 6 A-A sectional views.
Fig. 8 is the dimensional structure diagram of the elastic torque balanced controls of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in figures 1-8.
One kind extruding internal thread low frequency torsional excitation device, it includes thread forming tap 3C, and main shaft 1A, thread forming tap 3C leads to
Cross quick change set 3B and taper grip shank 3A to be arranged in main shaft 1A one end, main shaft 1A passes through upper angular contact ball bearing 1E and inferior horn
Contact ball bearing 1F is arranged on lathe, and the described main shaft 1A other end, which is connected with, can make main shaft 1A produce low frequency torsional excitation
Swing arm rocker device 2, swing arm rocker device 2 is connected with drive mechanism, and main shaft 1A low frequency, which is reversed, is delivered to thread forming tap 3C
On, as shown in Figure 1；Tie rod 1I for preventing taper grip shank 3A from falling, tie rod 1I lower end are installed in main shaft 1A
It is connected with grip shank 3A by screw thread, tie rod 1I upper end is arranged in dop retainer 1K, is installed in dop retainer 1K
Have in the positioning hole on three-jaw chuck 1H, three-jaw card end 1H one end insertion main shaft 1A so as to realize the connection with main shaft 1A,
Tie rod 1I upper end is installed with tightening nut 1J, and tightening nut 1J is using three-jaw chuck 1H as pedestal（Can be installed additional on pedestal pad,
The transition pieces such as cushion cover, as shown in Figure 2）Tie rod 1I is tensed and is positioned in main shaft 1A, such as Fig. 2 main shafts 1A torsional excitation is same
When be transferred to by three-jaw chuck 1H on tie rod 1I, the low frequency of main shaft is also reversed superposition and is delivered to thread forming tap by tie rod 11
3C, so as to realize double-acting type Low Frequency Torsional Vibration extrusion process.When it is implemented, described swing arm rocker device 2 can pass through
Branch sleeve 1B is connected with main shaft 1A（Fig. 2,3）, branch sleeve 1B is connected with main shaft 1A by interior external splines.Described upper corner connection
Touch and be separated by between ball bearing 1E and lower angular contact ball bearing 1F by axle sleeve 1D, upper angular contact ball bearing 1E compresses spiral shell by bearing
Female 1C and axle sleeve 1D realizes axially real position, such as Fig. 2.The tabletting 1G of centering is set with described tie rod 1I, tabletting 1G is folded
On tabletting seat 1M in main shaft.The quantity of described swing arm rocker device 2 is two, such as Fig. 3, and they are symmetrically mounted on master
On axle, cantilever end and the crank-type power unit 5 of one of swing arm rocker device 2 are hinged and connected to produce low frequency torsion, crank
Actuating unit 5 is as the actuating unit driving shown in Fig. 4,5, and Fig. 4, the actuating unit shown in 5 are also associated with Fig. 6, the speed change shown in 7
Mechanism and shifting fork structure.The cantilever end of another swing arm rocker device 2 be connected with the elastic torque balanced controls 4 shown in Fig. 8 with
Realize the reset that low frequency is reversed.
Details are as follows：The low frequency torsional excitation device of the present invention includes vibrating spindle mechanism 1（Such as Fig. 2）, swing arm rocking bar machine
Structure 2（Such as Fig. 3）, thread forming tap grip shank 3（Such as Fig. 3）, balance mechanism 4（Such as Fig. 8）, crank-type power unit 5（Such as Fig. 4,5）
With power bending moment mechanism 6（Such as Fig. 6,7）, assembling structure is as shown in Figure 1.Wherein：Vibrating spindle mechanism 1 includes main shaft 1A, connection
Sleeve 1B, bearing nut 1C, axle sleeve 1D, upper angular contact ball bearing 1E, lower angular contact ball bearing 1F, tabletting 1G, three-jaw card
Head 1H, tie rod 1I, tightening nut 1J, dop retainer 1K, dop trip bolt 1L, tabletting seat 1M, grip shank pilot sleeve
1N.Swing arm rocker device 2 includes right rocking arm 2A, left rocking arm 2B, tight fixed bolt component 2C.Thread forming tap grip shank 3 includes standard
BT40 handle of a knifes 3A, quick change set 3B and thread forming tap 3C.Balance mechanism 4 includes set 4B, brute spring on upperpush rod 4A, spring
4C, spring are trapped 4D, down-pressed pole 4E, left retainer 4F, right retainer 4G and main support 4H.Crank-type power unit 5 includes connecting rod
5A, right bent axle 5B and left bent axle 5C.Power bending moment mechanism 6：Including synchronous pulley 6A, gear 6B-6I, main power shaft 6J, power transmission
Axle 6K, axle 6L, shifting shaft 6M, axle 6N, right shift fork 6O and left shift fork 6P.In vibrating spindle mechanism 1, grip shank pulling assembly
(1G-1J) is placed in main shaft 1A, includes tightening nut 1J, tie rod 1I, tabletting 1G and three-jaw chuck 1H；Main shaft 1A is provided with
120 ° of intersecting mounting holes, pass through mounting hole and three-jaw chuck 1H mating connection main shafts 1A；In grip shank pulling assembly (1G-1J)
Tie rod 1I is provided with screw thread, coordinates tie rod 1I connection thread forming taps grip shank 3 (3A-3C) by screw thread；Swing arm rocking bar machine
Structure 2 and vibrating spindle mechanism 1 are fixed together by branch sleeve 1B, tight fixed bolt component 2C；Branch sleeve 1B is spent in setting
Key, main shaft 1A sets external splines, connects main shaft 1A and branch sleeve 1B；Pass through a tight fixed bolt component 2C connections left side (right side) rocking arm 2A
(2B).The external driving power source of swing arm rocker device 2, main shaft 1A is passed to by main driving force, to produce in the axial direction
Twisting vibration.The main shaft 1A twisting vibration along axis, by the grip shank pulling assembly (1G-1J) being placed in main shaft 1A, is passed
Thread forming tap grip shank 3 is passed, then 3B is covered by quick change and passes to thread forming tap 3C, workpiece is acted on.The He of balance mechanism 4
Swing arm rocker device 2 is linked together by depression bar neck pin 2E.Crank-type power unit 5 and swing arm rocker device 2 pass through connecting rod neck
Pin 2D is linked together, and connecting rods power is passed into left rocking arm, and then drive the operation of swing arm rocker device.Power bending moment mechanism 6
By gear 6B-6I, main power shaft 6J, force transmission shaft 6K, axle 6L, shifting shaft 6M, axle 6N, the outer power of synchronous pulley is passed
Pass, and then by a series of conversion, outer power is passed into crank-type power unit 5.Upper angular contact ball bearing 1E, lower angular contact
Ball bearing 1F inner rings are connected on main shaft 1A, and outer ring is fixed in lathe headstock bearing block, are played the fixed present apparatus, are such as schemed
2.Balance mechanism 4 and swing arm rocker device 2 are linked together by depression bar neck pin 2E.Crank-type power unit 5 and swing arm are shaken
Linkage 2 is linked together by connecting rod neck pin 2D, connecting rods power is passed into left rocking arm, and then drive swing arm rocker device fortune
OK, such as Fig. 3.Power bending moment mechanism 6, will by gear 6B-6I, main power shaft 6J, force transmission shaft 6K, axle 6L, shifting shaft 6M, axle 6N
The outer power of synchronous pulley is transmitted, and then by a series of conversion, outer power is passed into crank-type power unit 5, such as
Fig. 4, shown in 5.
In process, thread forming tap twisting vibration, workpiece rotary motion, screw tap 3C is processed to workpiece, draws button
Afterwards, workpiece can produce the active force parallel to axis direction to screw tap acting surface, and screw tap constantly guides carry out screw thread process.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (5)
1. one kind extruding internal thread low frequency torsional excitation device, it includes thread forming tap（3C）, main shaft（1A）, thread forming tap
（3C）Pass through quick change set（3B）With taper grip shank（3A）Installed in main shaft（1A）One end in, main shaft（1A）Pass through upper angular contact
Ball bearing（1E）With lower angular contact ball bearing（1F）On lathe, it is characterized in that described main shaft（1A）The other end connection
Main shaft can be made by having（1A）Produce the swing arm rocker device of low frequency torsional excitation（2）, swing arm rocker device（2）With drive mechanism phase
Even, main shaft（1A）Low frequency reverse be delivered to thread forming tap（3C）On；Main shaft（1A）In be provided with for preventing taper grip shank
（3A）The tie rod of whereabouts（1I）, tie rod（1I）Lower end and grip shank（3A）It is connected by screw thread, tie rod（1I）It is upper
End is arranged on dop retainer（1K）In, dop retainer（1K）In three-jaw chuck is installed（1H）, three-jaw chuck（1H）One
End insertion main shaft（1A）On positioning hole in so as to realizing and main shaft（1A）Connection, in tie rod（1I）Upper end be installed with drawing
Tight nut（1J）, tightening nut（1J）With three-jaw chuck（1H）It is pedestal by tie rod（1I）Tension is positioned at main shaft（1A）In,
Main shaft（1A）Torsional excitation simultaneously pass through three-jaw chuck（1H）It is transferred to tie rod（1I）On, tie rod（11）Also by main shaft
Low frequency reverses superposition and is delivered to thread forming tap（3C）.
2. extruding internal thread low frequency torsional excitation device according to claim 1, it is characterized in that described swing arm rocking bar
Mechanism（2）Pass through branch sleeve（1B）With main shaft（1A）It is connected, branch sleeve（1B）With main shaft（1A）Connected by interior external splines.
3. extruding internal thread low frequency torsional excitation device according to claim 1, it is characterized in that described upper angular contact
Ball bearing（1E）With lower angular contact ball bearing（1F）Between pass through axle sleeve（1D）It is separated by, upper angular contact ball bearing（1E）Pass through bearing
Clamp nut（1C）And axle sleeve（1D）Realize axially real position.
4. extruding internal thread low frequency torsional excitation device according to claim 1, it is characterized in that described tie rod
（1I）On be set with the tabletting of centering（1G）, tabletting（1G）It is stacked in the tabletting seat in main shaft（1M）On.
5. extruding internal thread low frequency torsional excitation device according to claim 1, it is characterized in that described swing arm rocking bar
Mechanism（2）Quantity be two, they are symmetrically mounted on main shaft, one of swing arm rocker device（2）Cantilever end with it is bent
Handle actuating unit（5）It is hinged and connected to produce low frequency torsion, another swing arm rocker device（2）Cantilever end and elastic torque put down
Weigh mechanism（4）It is connected to realize the reset of low frequency torsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400689.6A CN106001337B (en) | 2016-06-08 | 2016-06-08 | One kind extruding internal thread low frequency torsional excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400689.6A CN106001337B (en) | 2016-06-08 | 2016-06-08 | One kind extruding internal thread low frequency torsional excitation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001337A CN106001337A (en) | 2016-10-12 |
| CN106001337B true CN106001337B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400689.6A Expired - Fee Related CN106001337B (en) | 2016-06-08 | 2016-06-08 | One kind extruding internal thread low frequency torsional excitation device |
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| CN (1) | CN106001337B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU967640A1 (en) * | 1981-04-13 | 1982-10-23 | Винницкий политехнический институт | Apparatus for producing interior thread |
| DE19958827B4 (en) * | 1999-12-07 | 2005-04-14 | EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge | Thread former and its application |
| CN1418748A (en) * | 2002-12-26 | 2003-05-21 | 北京航空航天大学 | Vibration threading machine |
| CN101664832B (en) * | 2008-09-05 | 2011-02-16 | 童淼 | Gear shifting type constant torque tapping mechanism |
| CN103464842B (en) * | 2013-08-23 | 2015-12-02 | 西安交通大学 | A kind of internal thread vibration-extrusion tapping technique |
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2016
- 2016-06-08 CN CN201610400689.6A patent/CN106001337B/en not_active Expired - Fee Related
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| CN106001337A (en) | 2016-10-12 |
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Granted publication date: 20170915 |