CN107866455A - A kind of helical blade forming method preparation method - Google Patents
A kind of helical blade forming method preparation method Download PDFInfo
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- CN107866455A CN107866455A CN201710935140.1A CN201710935140A CN107866455A CN 107866455 A CN107866455 A CN 107866455A CN 201710935140 A CN201710935140 A CN 201710935140A CN 107866455 A CN107866455 A CN 107866455A
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- China
- Prior art keywords
- helical blade
- guide
- steel band
- synchronous motor
- forming
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
Abstract
The present invention relates to a kind of helical blade forming method preparation method, forming part gyration is engaged using helical blade and raw material steel band length feed moves and to form spiral compound motion, raw material steel band and forming part engagement are realized under the effect of spiral compound motion, by the helical blade that the one-shot forming of raw material steel band is definite shape size, it facts have proved, the equipment uses the engagement forming method of helical blade to obtain helical blade finished product by raw material of steel band with one-shot forming, stock utilization 100%, vane thickness is uniform, error≤0.10mm, pitch error≤0.5% of helical blade, production efficiency is high, steady quality, light labor intensity, suitable for small batch professional production.
Description
Technical field
The present invention relates to a kind of helical blade forming method preparation method, belong to pressure processing technology field.
Background technology
Unloaded in many grain machinery equipment and material handling machinery equipment, such as conveying worm, wheat turner, flat spin
On material machine, helical blade is widely applied as wherein important working part.At present, helical blade forming method mainly have with
Under it is several：
（1）Spiral single blade is compressing
Blank one piece is pressed into spiral single blade using forcing press, some single blades are then welded to connect into a fixed length
The helical blade of degree.The shortcomings that this method is：1. the blank preparatory period is grown, stock utilization is low.Cut first from steel plate
The disk of certain diameter, a circular hole then is punched at disk center, forms an annulus, then forming V-shape opening is cut on ring
Flange.Stock utilization<50% ；2. the accuracy of manufacture is poor, pitch error≤10% of helical blade.
（2）Screw blade coiling and molding
The helical blade that helicoid overlaps each other is made in the up- coiler of application specific, steel band, stretches, obtains through special stretcher
To the helical blade of a constant pitch.This forming method all improves compared with first method stock utilization and production efficiency.Lack
Putting is：1. shaping needs two procedures, rolling step and stretching process.It is uneven that rolling step easily produces vane thickness, outside
Portion's thin edge, internal edge are thick.Two procedures material occurs that the internal stress of helical blade finished product can be caused in plastic history
Increase, product buckling deformation are larger；2. the accuracy of manufacture is relatively low, pitch error≤6% of helical blade.
The content of the invention
It is an object of the invention to provide a kind of helical blade forming method preparation method, using this engagement forming method
Helical blade finished product can be obtained using steel band as raw material one-shot forming, stock utilization 100%, i.e. no waste mine, vane thickness is equal
Even, error≤0.10mm, pitch error≤0.5% of helical blade, production efficiency also greatly improves.
Helical blade engages forming method：Helical blade engages forming part gyration and raw material steel band longitudinal direction
Feed motion forms spiral compound motion, and raw material steel band and forming part engagement are realized under the effect of spiral compound motion, will
The one-shot forming of raw material steel band is the helical blade of definite shape size.
The structure of forming spindle drive mechanism is as shown in Fig. 1, it is possible to achieve gyration, transmits moment of torsion, and provides essence
True rotating speed；The forming spindle drive mechanism includes support, servomotor, two synchronous pulleys, timing belt and power transmission shaft,
Servomotor be arranged on support on, the first synchronous pulley is installed on the output shaft of servomotor, with servomotor the same side
The second synchronous pulley is installed in one end of power transmission shaft, and timing belt is arranged on the first synchronous pulley and the second synchronous pulley, by same
Step band is transferred power on power transmission shaft.
Power transmission shaft is hollow multi-diameter shaft, and power transmission shaft is arranged on support by rolling bearing, bearing inner race and axle close-fitting
Close, bearing outer ring and support interference fits, power transmission shaft front support employ thrust bearing and taper roll bearing, and rear support uses
Two-row ball bearing, it can so bear steel band and forming spindle axially and radially load caused by engagement process, servo
Motor and timing belt can provide products of different specifications helical blade precise rotation and moment of torsion that engagement shaping needs, and they can be with
Adapt to helical blade product small lot productive prospecting.
Helical blade forming spindle is helical blade forming part, is made up of shank, shaping work part, tail end, such as
Shown in Fig. 3；Its shank uses the Morse's taper 5# conical surfaces（Radially）And end face of flange（Axially）Dual contact, forming spindle
Shank be arranged in the taper hole of power transmission shaft, when being installed on power transmission shaft, the conical surface can be played with fully mated with being driven axial cone hole
It is fixed
The effect of the heart, now spindle flanges end face and transmission shaft end surface also have 0.15mm gap, can be drawn by pull bar
Tightly, realize and be rigidly connected with power transmission shaft；Pull bar is arranged on inside power transmission shaft, and one end is threadedly coupled with forming spindle, the other end
There is boss（See Fig. 4 enlarged drawings I）, during pull bar screws, boss contacts with power transmission shaft and acts power, will be molded the heart
Axle moves axially, until spindle flanges end face is locked at transmission shaft end surface；End face of flange axially opens up 2 waist type grooves with passing
Moving axis block coordinates, to transmit moment of torsion；Shaping work part devises helicla flute, helicla flute pitch error≤0.15%, at present
Numerical control (NC) Machining Accuracy fully achieves；Helicla flute width dimensions B=B steel band+δ+Zmin, wherein B steel bands are width of steel band base
This size, the δ width of steel band upper deviations, Zmin are that helicla flute engages minimum clearance with steel band, and its value is determined using empirical method.
Feed mechanism mainly includes guide part, guide length feed part, guide and laterally adjusts part, realizes spiral
Steel band friction feeding in blade engagement forming process, including laterally consecutive feeding and length feed motion, move along the rail direction
For lengthwise movement direction, the vertical guide rail direction of motion is transverse movement direction, with dynamic response is fast, delivery precision is high, rigidity
The features such as high, the small long lifespan of abrasion, stable movement, high reliability.
Guide part includes material-guiding wheel and guide rack, realizes the continuous conveying of steel band；It is horizontal that guide part is arranged on guide
To in adjusting seat, and can guide laterally adjust in a plane using adjusted close to one end of helical blade forming spindle for axle center ±
15 ° of angles（Shown in Fig. 5）, it is therefore an objective to steel band conveying direction can be adjusted, it is conveyed along helical blade lead angle direction.
Guide length feed part includes guide length feed fulcrum bearing, slided by the first triangular guide and the first plane
The first triangle-planar slide track, the first synchronous motor-shaft coupling-ball screw assembly, driving-chain of dynamic guide rail composition；
First synchronous motor is arranged on synchronous motor support, and synchronous motor support is fixed in frame, ball screw assembly, one end and the
One synchronous motor output shaft connection, through length feed fulcrum bearing and passes through rolling ball screw pair screw nut seat and length feed fulcrum bearing
It is fastenedly connected；Guide length feed fulcrum bearing is arranged on the first triangle-planar slide track, and it can be indulged along guide rail
To feed motion, the power resources of feed motion are in the first synchronous motor-shaft coupling-ball screw assembly, driving-chain, this biography
Dynamic chain not only provides the power of feed motion, and it also assures that positioning precision≤0.006mm/ of guide length feed fulcrum bearing
320mm, can so ensure power transmission shaft often rotate a circle guide length feed fulcrum bearing feed a pitch, it is seen that the positioning accurate
Degree plays a key effect to product helical blade pitch precision.
Guide laterally adjusts part and mainly laterally adjusts that fulcrum bearing, adjusting screw be secondary, guide laterally adjusts seat including guide,
Guide laterally adjusts seat and laterally adjusted installed in guide in fulcrum bearing, and guide laterally adjusts fulcrum bearing and is arranged on guide length feed
In fulcrum bearing, in the presence of adjusting screw pair, guide, which laterally adjusts seat, to laterally adjust fulcrum bearing cooperation along with guide
Dovetail guide makees transverse movement, the distance between material-guiding wheel and helical blade forming spindle is adjusted, to adapt to the spiral shell of all size
Vane piece produces.
Shedding mechanism include steel belt clamping element, socket for taper shank, axle sleeve, discharging fulcrum bearing, by the second triangular guide and
The second triangle-planar slide track, the second synchronous motor-shaft coupling-ball-screw of second planar slide track composition
Auxiliary driving chain；Synchronous motor is arranged on synchronous motor support, and synchronous motor support is fixed in frame, ball screw assembly,
One end and the second synchronous motor output axis connection, through discharging fulcrum bearing and pass through rolling ball screw pair screw nut seat and discharging fulcrum bearing
It is fastenedly connected；Socket for taper shank is arranged in axle sleeve, and axle sleeve is arranged in discharging fulcrum bearing, and discharging fulcrum bearing is arranged on the two or three
On angular-planar slide track, socket for taper shank endoporus is slidably matched with forming spindle tail end, plays supporting forming spindle
Effect, by steel belt clamping element, realizes steel band end positioning and clamping；Second synchronous motor-shaft coupling-ball-screw
Auxiliary driving chain can ensure power transmission shaft often rotate a circle discharging fulcrum bearing retract a pitch, it is therefore an objective to molded helical blade
Do not deformed in discharge process, shedding mechanism can realize the helical blade automatic discharging of shaping.
The present patent application is not related to helical blade engagement former control system, does not illustrate here.
Brief description of the drawings
Fig. 1 is helical blade engagement former front view of the present invention；
Fig. 2 is helical blade engagement former top view of the present invention；
Fig. 3 forming spindle structure charts；
Assembling relationship figure between Fig. 4 forming spindles, pull bar and power transmission shaft；
Fig. 5 guides component angles adjust schematic diagram；
The equipment component title that reference represents is as follows：
1st, support；2nd, servomotor；3rd, synchronous pulley；4th, timing belt；5th, pull bar；6th, synchronous pulley；7th, ball bearing；
8th, thrust bearing；9th, taper roll bearing；10th, power transmission shaft；11st, helical blade forming spindle；12nd, guide length feed branch
Bearing；13rd, guide laterally adjusts fulcrum bearing；14th, adjusting screw pair；15th, guide rack；16th, material-guiding wheel；17th, guide is horizontal
Adjusting seat；18th, steel belt clamping element；19th, socket for taper shank；20th, axle sleeve；21st, discharging fulcrum bearing；22nd, ball screw assembly,；
23rd, shaft coupling；24th, synchronous motor support；25th, synchronous motor；26th, synchronous motor；27th, shaft coupling；28th, ball-screw
It is secondary；29th, frame；30th, planar slide track；31st, triangular guide；32nd, planar slide track；33rd, triangular guide.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
1st, helical blade processing preparation：According to the helical blade specification and raw material steel band specification to be produced,
1. adjust the distance between material-guiding wheel 16 and helical blade forming spindle 11；2. adjusting the angle of guide rack 15, make its edge
The conveying of helical blade lead angle direction；3. adjust the rotating speed of servomotor 2；4. adjust feed mechanism feed speed；⑤
Adjust shedding mechanism feed speed；6. feed mechanism and shedding mechanism retract setting zero point.
2nd, helical blade engagement forming process：The raw material steel band of fixed length is conveyed by material-guiding wheel 16, in band cramp
Tight its lower termination of the effect of element 18 fixes to clamp, and opens servomotor 2 and rotates forward button and the button of synchronous motor 25, servo
Motor is rotated forward with specified rotating speed, and power is forwarded into helical blade forming spindle 11 by timing belt 4, power transmission shaft 10,
Helical blade forming spindle 11 is rotated forward with certain rotating speed；Meanwhile first synchronous motor 25 start, it is synchronous to pass through first
The driving-chain of 25-shaft coupling of motor, 23-ball screw assembly, 22, guide length feed fulcrum bearing 12 drive guide part edge
Guide rail makees length feed motion, realizes the friction feeding of steel band；During this, raw material steel band and helical blade forming spindle
11 engagement shapings, when the steel band of certain length engages with forming spindle completely, helical blade shaping, steel band takes off with feed mechanism
Open, feed mechanism, which retracts to zero point, the synchronous motor 25 of servomotor 2 and first, to be stopped.
3rd, helical blade discharge process：Open servomotor 2 and invert button and the button of the second synchronous motor 26, watch
Motor 2 is taken to invert with specified rotating speed, meanwhile, the second synchronous motor 26 starts, and passes through second 26-shaft coupling of synchronous motor
The driving-chain of 27-ball screw assembly, of device 28, discharging fulcrum bearing 21 drive shedding mechanism to make instead along guide rail with certain speed
To longitudinal direction enter
To motion, molded helical blade exits from helical blade forming spindle 11；When helical blade completely disengages shaping
Mandrel, steel belt clamping element, helical blade finished product discharging are unclamped, shedding mechanism returns to the zero point of setting, completes a helical-blade
The piece process-cycle.
Claims (4)
- A kind of 1. helical blade forming method preparation method, it is characterised in that：Forming spindle driving can realize revolution fortune It is dynamic, moment of torsion is transmitted, and provide accurate rotating speed；The forming spindle drive mechanism includes support, servomotor, two synchronizations Belt wheel, timing belt and power transmission shaft, servomotor are arranged on support, and the first synchronous pulley is installed on the output shaft of servomotor, The power transmission shaft with servomotor the same side one end install the second synchronous pulley, timing belt be arranged on the first synchronous pulley and On second synchronous pulley, transferred power to by timing belt on power transmission shaft；Power transmission shaft is hollow multi-diameter shaft, and power transmission shaft passes through Rolling bearing is arranged on support, bearing inner race and axle tight fit, bearing outer ring and support interference fits, power transmission shaft front support Thrust bearing and taper roll bearing are employed, rear support employs two-row ball bearing, can bear steel band and forming spindle exists Caused axially and radially load in engagement process；Helical blade forming spindle is helical blade forming part, by shank, into Type working portion, tail end composition, its shank use the # conical surfaces of Morse's taper 5（Radially）And end face of flange（Axially）It is two-sided Positioning, the shank of forming spindle is arranged in the taper hole of power transmission shaft, when being installed on power transmission shaft, the conical surface and transmission axial cone hole energy It is enough fully mated, play a part of centering；Pull bar is arranged on inside power transmission shaft, and one end is threadedly coupled with forming spindle, another There is boss at end, and during pull bar screws, boss is contacted with power transmission shaft and acts power, and forming spindle is moved axially, directly Transmission shaft end surface is locked to spindle flanges end face；End face of flange axially opens up 2 waist type grooves and coordinated with power transmission shaft block, To transmit moment of torsion；Feed mechanism mainly includes guide part, guide length feed part, guide and laterally adjusts part；Guide Part includes material-guiding wheel and guide rack, realizes the continuous conveying of steel band, and guide part is laterally adjusted on seat installed in guide, and It can be laterally adjusted in guide in a plane to adjust ± 15 ° of angles as axle center close to one end of helical blade forming spindle；Lead Material length feed part includes guide length feed fulcrum bearing, is made up of the first triangular guide and the first planar slide track The first triangle-planar slide track, the first synchronous motor-shaft coupling-ball screw assembly, driving-chain；First is synchronous Motor is arranged on synchronous motor support, and synchronous motor support is fixed in frame, ball screw assembly, one end electricity synchronous with first Machine exports axis connection, connects through length feed fulcrum bearing and by rolling ball screw pair screw nut seat and the fastening of length feed fulcrum bearing Connect；Guide length feed fulcrum bearing is arranged on the first triangle-planar slide track, can make length feed along guide rail Motion；Guide laterally adjusts part and mainly laterally adjusts that fulcrum bearing, adjusting screw be secondary, guide laterally adjusts seat including guide, Guide laterally adjusts seat and laterally adjusted installed in guide in fulcrum bearing, and guide laterally adjusts fulcrum bearing and longitudinally entered installed in guide To in fulcrum bearing, in the presence of adjusting screw pair, guide, which laterally adjusts seat, to be coordinated along fulcrum bearing is laterally adjusted with guide Dovetail guide make transverse movement, the distance between material-guiding wheel and helical blade forming spindle are adjusted, to adapt to all size Helical blade produces；Shedding mechanism is realizing the helical blade automatic discharging of shaping, including steel belt clamping element, taper shank set Cylinder, axle sleeve, discharging fulcrum bearing, the second triangle-plane being made up of the second triangular guide and the second planar slide track Rail plate, the second synchronous motor-shaft coupling-ball screw assembly, driving-chain；Synchronous motor is arranged on synchronous motor support On, synchronous motor support is fixed in frame, one end of ball screw assembly, and the second synchronous motor output axis connection, through unloading Material fulcrum bearing is simultaneously fastenedly connected by rolling ball screw pair screw nut seat and discharging fulcrum bearing；Socket for taper shank is arranged in axle sleeve, axle Set is arranged in discharging fulcrum bearing, and discharging fulcrum bearing is arranged on the second triangle-planar slide track, socket for taper shank endoporus It is slidably matched with forming spindle tail end, plays a part of supporting forming spindle, by steel belt clamping element, realize steel band end Portion's positioning and clamping.
- A kind of 2. helical blade forming method preparation method as described in claim 1, it is characterised in that：The helical-blade The shaping work part of sheetmolding mandrel is provided with helicla flute, helicla flute pitch error≤0.15%；Helicla flute width dimensions B= B steel band+δ+Zmin, wherein B steel bands are width of steel band basic size, and the δ width of steel band upper deviations, Zmin is helicla flute Minimum clearance is engaged with steel band.
- A kind of 3. helical blade forming method preparation method as described in claim 1, it is characterised in that：Led along triangle The direction of motion of rail and the second planar slide track is lengthwise movement direction, and Vertical Triangular guide rail and the second planar slide are led The rail direction of motion is transverse movement direction.
- 4. a kind of helical blade forming method preparation method as described in claim 1, helical blade engagement forming method, It is characterized in that：The gyration of helical blade forming spindle and raw material steel band length feed move to form the compound fortune of spiral It is dynamic, raw material steel band and forming part engagement are realized under the effect of spiral compound motion, is one by the one-shot forming of raw material steel band Determine the helical blade of geomery, specifically comprise the following steps：（1）Helical blade processes preparation：According to the helical blade specification and raw material steel band specification to be produced, adjustment The distance between material-guiding wheel and helical blade forming spindle；Guide rack angle is adjusted, makes it along helical blade lead angle Direction conveys；Adjust servomotor rotating speed；Adjust feed mechanism feed speed；Adjust shedding mechanism feed speed；Feeding Mechanism and shedding mechanism retract setting zero point；（2）Helical blade engages forming process：The raw material steel band of fixed length is conveyed by material-guiding wheel, is made in steel belt clamping element Fixed to clamp with its lower termination, open servomotor and rotate forward button and synchronous motor button, servomotor with specified rotating speed just Turn, power is forwarded to by helical blade forming spindle by timing belt, power transmission shaft, helical blade forming spindle rotates forward；Meanwhile First synchronous motor startup, pass through the first synchronous motor-shaft coupling-ball screw assembly, driving-chain, the supporting of guide length feed Seat drives guide part to be moved along guide rail as length feed, realizes the friction feeding of steel band；During this, raw material steel band with The engagement shaping of helical blade forming spindle, when the steel band of certain length engages with forming spindle completely, helical blade is molded, steel Band is disengaged with feed mechanism, and feed mechanism, which retracts to zero point, servomotor and the first synchronous motor, to be stopped；（3）Helical blade discharge process：Open servomotor reversion button and the second synchronous motor button, servomotor is to refer to Fixed rotating speed reversion, meanwhile, the second synchronous motor startup, pass through the second synchronous motor-shaft coupling-ball-screw auxiliary driving Chain, discharging fulcrum bearing drive shedding mechanism to make reverse length feed along guide rail and move, and molded helical blade is from helical-blade Sheetmolding mandrel exits；When helical blade completely disengages forming spindle, release steel belt clamping element, helical blade finished product unloads Material, shedding mechanism return to the zero point of setting, complete a helical blade process-cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935140.1A CN107866455A (en) | 2017-10-10 | 2017-10-10 | A kind of helical blade forming method preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935140.1A CN107866455A (en) | 2017-10-10 | 2017-10-10 | A kind of helical blade forming method preparation method |
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| Publication Number | Publication Date |
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| CN107866455A true CN107866455A (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710935140.1A Withdrawn CN107866455A (en) | 2017-10-10 | 2017-10-10 | A kind of helical blade forming method preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846678A (en) * | 2021-01-05 | 2021-05-28 | 北京动力机械研究所 | Spiral adapter and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342562A (en) * | 2008-08-15 | 2009-01-14 | 李悦 | Screw blade coiling and molding method, and molding equipment thereof |
| CN103157736A (en) * | 2013-03-19 | 2013-06-19 | 镇江宇诚机械有限公司 | Screw blade meshing forming method and forming device |
| JP2013215772A (en) * | 2012-04-09 | 2013-10-24 | Hokkai Bane Kk | Method for manufacturing thickened spiral blade, steel pipe pile with thickened spiral blade using the same, and apparatus for manufacturing the thickened spiral blade |
| CN203711694U (en) * | 2013-03-19 | 2014-07-16 | 镇江宇诚机械有限公司 | Meshed molding equipment for spiral blade |
-
2017
- 2017-10-10 CN CN201710935140.1A patent/CN107866455A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342562A (en) * | 2008-08-15 | 2009-01-14 | 李悦 | Screw blade coiling and molding method, and molding equipment thereof |
| JP2013215772A (en) * | 2012-04-09 | 2013-10-24 | Hokkai Bane Kk | Method for manufacturing thickened spiral blade, steel pipe pile with thickened spiral blade using the same, and apparatus for manufacturing the thickened spiral blade |
| CN103157736A (en) * | 2013-03-19 | 2013-06-19 | 镇江宇诚机械有限公司 | Screw blade meshing forming method and forming device |
| CN203711694U (en) * | 2013-03-19 | 2014-07-16 | 镇江宇诚机械有限公司 | Meshed molding equipment for spiral blade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846678A (en) * | 2021-01-05 | 2021-05-28 | 北京动力机械研究所 | Spiral adapter and preparation method thereof |
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Application publication date: 20180403 |
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