CN104308281A - Worm machining mechanism - Google Patents

Worm machining mechanism Download PDF

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Publication number
CN104308281A
CN104308281A CN201410533313.3A CN201410533313A CN104308281A CN 104308281 A CN104308281 A CN 104308281A CN 201410533313 A CN201410533313 A CN 201410533313A CN 104308281 A CN104308281 A CN 104308281A
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blank
drive
bearing
sleeve
externally threaded
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CN201410533313.3A
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CN104308281B (en
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宋贝贝
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宋贝贝
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Abstract

A worm machining mechanism is used for machining a blank (1) into a worm; the machining mechanism comprises a blank carrier (2), a sleeve (3) with external threads, a driving sleeve (4) with internal threads and a rack (7); the blank carrier (2) is used for carrying the blank (1); the upper end and the lower end of the blank carrier (2) are axially fixedly mounted in the sleeve (3) with the external threads relative to the sleeve (3) with the external threads by an upper bearing (21) and a lower bearing (22); the sleeve (3) with the external threads is in threaded fit in the driving sleeve (4) with the internal threads; the lower end of the driving sleeve (4) with the internal threads is rotatably arranged on the rack (7) by a thrust bearing (47); a chamber (72) is arranged in the rack (7).

Description

A kind of worm screw organisation of working
Technical field
The application relates to worm screw manufacture field, is specially a kind of worm screw processing structure.
Background technology
Worm-drive is made up of worm and worm wheel, and general worm screw is driving link.Worm screw is the same with screw thread dextrorotation and left-handed dividing.Worm-drive tool has the following advantages: 1. gearratio is large, compact conformation.Number of threads Z1 represents (general Z1=1 ~ 4), and worm gear number of teeth Z2 represents.As can be seen from gearratio formula I=Z2/Z1, work as Z1=1, namely worm screw is single head, and worm screw must turn Z2 and turn worm gear and just go around, and thus can obtain very big speed ratio, generally in power transmission, get gearratio I=10-80; In indexing mechanism, I can reach 1000.Gearratio large like this as with gear drive, then needs to take Multi-stage transmission, so worm transmission structure is compact, volume is little, lightweight.2. stable drive, noiselessness.Because worm tooth is continuous continual helical tooth, be continuously when it engages with worm-gear toothing, worm tooth does not enter and exits the process of engagement, therefore stable working, impacts, vibrations, noise is all smaller.3. there is self-locking performance.When the lead angle of worm screw is very little, worm screw can only drive worm-drive, and worm gear can not drive worm screw to rotate.4. Efficiency of Worm Gearing is low, it is generally acknowledged that Efficiency of Worm Gearing is lower than gear drive.Especially have the worm-drive of self-locking performance, its efficiency is below 0.5, and general efficiency only has 0.7 ~ 0.9.But it is large that worm-drive also has caloric value, and the flank of tooth easily weares and teares, the shortcoming that cost is high.In order to improve transmission accuracy, reduce wear, usually need the form accuracy ensureing worm gear profile of tooth.But the shape processing system of worm gear profile of tooth makes trouble, and is difficult to the teeth groove accuracy of form and position ensureing processing.
In particular, in some embody rule fields, such as flexible material (as plastics) processing, traditional intermetallic composite coating mode reduces costs being difficult to meet and improving the requirement of process velocity and precision.
Summary of the invention
The object of the invention is the processing mode in order to provide a kind of worm screw, it has the high advantage of the single worm tooth shape precision that is simple, processing of process equipment.Further, can meet in some flexible materials for the requirement that processing cost (especially tooling cost) reduces.
According to aspects of the present invention, a kind of worm screw organisation of working, for blank forming is become worm screw, described organisation of working comprises blank bearing part, be with externally threaded sleeve, tapped drive sleeve and frame, blank bearing part is for carrying described blank, the top and bottom of blank bearing part respectively by upper bearing (metal) and lower bearing relative to the externally threaded quill of described band to being fixedly mounted in the externally threaded sleeve of described band, the externally threaded bush whorl of described band is matched with in described tapped drive sleeve, the lower end of described tapped drive sleeve is arranged in frame revolvably by thrust bearing, the inside of frame has chamber, in the cavity, the left inside sidewall of chamber of described frame is fixed with drive motors, the rotation of drive motors is horizontal direction, drive motors is connected with the left end power of horizontal drive shaft, the right-hand member of horizontal drive shaft is arranged on the right inside side-walls of chamber of described frame revolvably, the left part of horizontal drive shaft is fixed with the first bevel pinion, and right part is fixed with bevel gear wheel part, and described first bevel pinion engages with vertical bevel gear, and the diameter of described vertical bevel gear is greater than the diameter of described first bevel pinion, the bottom of described tapped drive sleeve is provided with transverse horizontal wall, the central authorities of transverse horizontal wall are provided with through hole, vertical power transmission shaft by be arranged on bearing on the upside of described transverse horizontal wall and axial restraint and circumference be installed on described transverse horizontal wall revolvably and extend through described through hole and and there is annular gap between described through hole, the described vertical bevel gear of lower end fixed installation of vertical power transmission shaft, the top of vertical power transmission shaft extends in the central blind hole of described blank bearing part, and be provided with axially extended key, described axially extended key can coordinate axially slidably with the keyway in described central blind hole, described vertical power transmission shaft, blank bearing part, central axis with externally threaded sleeve and tapped drive sleeve all overlap,
The external screw thread face of the externally threaded sleeve of described band is also provided with axially extended chute, described frame is fixedly installed circumferential fixed structure, described circumferential fixed structure coordinates with described chute to be fixed to carry out circumference to the externally threaded sleeve of described band, and described circumferential fixed structure and described chute can relative to each other slide axially;
The middle position of described transverse horizontal wall is provided integrally with the second bevel pinion structure, and described through hole is positioned at the central authorities of described second bevel pinion structure;
Described bevel gear wheel part is that right-hand member is closed, the cylinder-like structure of left end opening, the central axis of described cylinder-like structure and the central axes of described horizontal drive shaft, the left end arranged outside of the barrel of described cylinder-like structure has cone toothing, the part be positioned on the right side of described vertical power transmission shaft of described vertical bevel gear protrudes into described cylinder-like structure, and described bevel gear wheel part engages with described second bevel pinion structure;
When described drive motors rotates, described bevel gear wheel part can drive described tapped drive sleeve to rotate, and then drives the externally threaded sleeve of described band and described blank bearing part and blank to move at vertical direction; Described first bevel pinion can drive described vertical power transmission shaft and described blank bearing part and blank to rotate in circumferential direction, thus, under the effect of cutting tool, can process worm screw teeth groove on described blank.
Pass through such scheme, by adopting cylindric bevel gear structure, can farthest be elevated by improving screw thread rotation speed, like this can when circumferential rotating speed limits, at utmost improve the density of elevating screw thread, improve transmission accuracy, and process velocity can be improved simultaneously; And, utilize the bevel gear structure of this cylindrical shape, spatially can make full use of the transmission space in equipment cavity, other travelling gear parts are arranged on the bevel gear inside configuration of this cylindrical shape, fully meet drive mechanism requirement when mutual rotation is not interfered, and save the device space simultaneously; Owing to have employed the transmission of the gears at different levels of the fixing number of teeth, when thread pitch is certain, can ensure that the proportionate relationship between rotational angular velocity and riser speed is constant, therefore, which ensure that the precision of slot form in processing spiral alveolar process; And by specific concrete vibrational power flow, the rotation that can realize circumferential angular speed slows down as far as possible, namely relative to the linear velocity risen, rotary speed is as far as possible slow, thus can adopt the screw-driven that precision is high, while meeting the shape need of worm screw, the form accuracy of processing can be improved.Meanwhile, what utilize power transmission shaft to rotate external thread sleeve is fixing, therefore, it is possible to ensure that it is not followed inner thread sleeve and rotates; And the central axes of middle power transmission shaft and the miscellaneous part of rotation, which ensure that the rotation of power transmission shaft can have nothing to do with the rotation of plummer, thus can rotate independently.Utilize unique blind hole structure, can ensure that basic fixed structure is constant while rising, thus the transmission of power transmission shaft can not be affected and fix in the rotation of screw shell.Upward system tightly uses single drive motors, two kinds of motions that just can realize the rotation of Gear Processing is risen drive, ensure that the proportional precision between two kinds of motions simultaneously, therefore, the requirement of manufacturing equipment cost control can be met, the antagonism requirement of the cutting force for particular process material can be met simultaneously, and the form accuracy requirement of gear tooth slot can be met, it by the impact of processing environment confusion, does not all have for the maintenance of process equipment, the workflow management of process the tolerance degree increased.
Accompanying drawing explanation
Fig. 1 is the structural representation of organisation of working of the present invention when non-propradation;
Fig. 2 is the structural representation of organisation of working of the present invention after rising.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-2, the present invention is described in detail.
A kind of worm screw organisation of working, for blank 1 is processed into worm screw, described organisation of working comprises blank bearing part 2, be with externally threaded sleeve 3, tapped drive sleeve 4 and frame 7, blank bearing part 2 is for carrying described blank 1, the top and bottom of blank bearing part 2 are arranged in the externally threaded sleeve 3 of described band respectively by upper bearing (metal) 21 and lower bearing 22 relative to described band externally threaded sleeve 3 axial restraint, described band externally threaded sleeve 3 threaded engagement is in described tapped drive sleeve 4, the lower end of described tapped drive sleeve 4 is arranged in frame 7 by thrust bearing 47 revolvably, the inside of frame 7 has chamber 72, in described chamber 72, the left inside sidewall of chamber of described frame 7 is fixed with drive motors 8, the rotation of drive motors 8 is horizontal direction, drive motors 8 is connected with the left end power of horizontal drive shaft 5, the right-hand member of horizontal drive shaft 5 is arranged on the right inside side-walls of chamber of described frame 7 revolvably, the left part of horizontal drive shaft 5 is fixed with the first bevel pinion 51, and right part is fixed with bevel gear wheel part 52, and described first bevel pinion 51 engages with vertical bevel gear 61, and the diameter of described vertical bevel gear 61 is greater than the diameter of described first bevel pinion 51, the bottom of described tapped drive sleeve 4 is provided with transverse horizontal wall 43, the central authorities of transverse horizontal wall 43 are provided with through hole 42, vertical power transmission shaft 6 by be arranged on bearing on the upside of described transverse horizontal wall 43 and axial restraint and circumference be installed on described transverse horizontal wall 43 revolvably and extend through described through hole 42 and and there is annular gap between described through hole 42, the described vertical bevel gear 61 of lower end fixed installation of vertical power transmission shaft 6, the top of vertical power transmission shaft 6 extends in the central blind hole of described blank bearing part 2, and be provided with axially extended key 62, described axially extended key 62 can coordinate axially slidably with the keyway in described central blind hole, described vertical power transmission shaft 6, blank bearing part 2, central axis with externally threaded sleeve 3 and tapped drive sleeve 4 all overlap,
The external screw thread face of the externally threaded sleeve of described band 3 is also provided with axially extended chute 31, described frame 7 is fixedly installed circumferential fixed structure 71, described circumferential fixed structure 71 coordinates with described chute 31 to be fixed to carry out circumference to the externally threaded sleeve 3 of described band, and described circumferential fixed structure 71 and described chute 31 can relative to each other slide axially;
The middle position of described transverse horizontal wall 43 is provided integrally with the second bevel pinion structure 41, and described through hole 42 is positioned at the central authorities of described second bevel pinion structure 41;
Described bevel gear wheel part 52 for right-hand member close, the cylinder-like structure of left end opening, the central axis of described cylinder-like structure and the central axes of described horizontal drive shaft 5, the left end arranged outside of the barrel of described cylinder-like structure has cone toothing, the part be positioned on the right side of described vertical power transmission shaft 6 of described vertical bevel gear 61 protrudes into described cylinder-like structure, and described bevel gear wheel part 52 engages with described second bevel pinion structure 41;
When described drive motors 8 rotates, described bevel gear wheel part 52 can drive described tapped drive sleeve 4 to rotate, and then drives the externally threaded sleeve of described band 3 and described blank bearing part 2 and blank 1 to move at vertical direction; Described first bevel pinion 51 can drive described vertical power transmission shaft 6 and described blank bearing part 2 and blank 1 to rotate in circumferential direction, thus, under the effect of cutting tool, can process worm screw teeth groove on described blank 1.

Claims (1)

1. a worm screw organisation of working, for blank (1) is processed into worm screw, described organisation of working comprises blank bearing part (2), be with externally threaded sleeve (3), tapped drive sleeve (4) and frame (7), blank bearing part (2) is for carrying described blank (1), the top and bottom of blank bearing part (2) are arranged in the externally threaded sleeve of described band (3) respectively by upper bearing (metal) (21) and lower bearing (22) relative to the externally threaded sleeve of described band (3) axial restraint, the externally threaded sleeve of described band (3) threaded engagement is in described tapped drive sleeve (4), the lower end of described tapped drive sleeve (4) is arranged in frame (7) by thrust bearing (47) revolvably, the inside of frame (7) has chamber (72), in described chamber (72), the left inside sidewall of chamber of described frame (7) is fixed with drive motors (8), the rotation of drive motors (8) is horizontal direction, drive motors (8) is connected with the left end power of horizontal drive shaft (5), the right-hand member of horizontal drive shaft (5) is arranged on the right inside side-walls of chamber of described frame (7) revolvably, the left part of horizontal drive shaft (5) is fixed with the first bevel pinion (51), right part is fixed with bevel gear wheel part (52), described first bevel pinion (51) is engaged with vertical bevel gear (61), and the diameter of described vertical bevel gear (61) is greater than the diameter of described first bevel pinion (51), the bottom of described tapped drive sleeve (4) is provided with transverse horizontal wall (43), the central authorities of transverse horizontal wall (43) are provided with through hole (42), vertical power transmission shaft (6) by be arranged on described transverse horizontal wall (43) upside bearing and axial restraint and circumference are installed on described transverse horizontal wall (43) revolvably and extend through described through hole (42) and and there is annular gap between described through hole (42), the described vertical bevel gear (61) of lower end fixed installation of vertical power transmission shaft (6), the top of vertical power transmission shaft (6) extends in the central blind hole of described blank bearing part (2), and be provided with axially extended key (62), described axially extended key (62) can coordinate axially slidably with the keyway in described central blind hole, described vertical power transmission shaft (6), blank bearing part (2), central axis with externally threaded sleeve (3) and tapped drive sleeve (4) all overlap,
The external screw thread face of the externally threaded sleeve of described band (3) is also provided with axially extended chute (31), described frame (7) is fixedly installed circumferential fixed structure (71), described circumferential fixed structure (71) coordinates with described chute (31) fixes to carry out circumference to the externally threaded sleeve of described band (3), and described circumferential fixed structure (71) and described chute (31) can relative to each other slide axially;
The middle position of described transverse horizontal wall (43) is provided integrally with the second bevel pinion structure (41), and described through hole (42) is positioned at the central authorities of described second bevel pinion structure (41);
Described bevel gear wheel part (52) for right-hand member close, the cylinder-like structure of left end opening, the central axis of described cylinder-like structure and the central axes of described horizontal drive shaft (5), the left end arranged outside of the barrel of described cylinder-like structure has cone toothing, the part being positioned at described vertical power transmission shaft (6) right side of described vertical bevel gear (61) protrudes into described cylinder-like structure, and described bevel gear wheel part (52) is engaged with described second bevel pinion structure (41);
When described drive motors (8) rotates, described bevel gear wheel part (52) can drive described tapped drive sleeve (4) to rotate, and then drives the externally threaded sleeve of described band (3) and described blank bearing part (2) and blank (1) to move at vertical direction; Described first bevel pinion (51) can drive described vertical power transmission shaft (6) and described blank bearing part (2) and blank (1) to rotate in circumferential direction, thus, under the effect of cutting tool, can process worm screw teeth groove on described blank (1).
CN201410533313.3A 2014-10-11 2014-10-11 A kind of worm screw organisation of working Expired - Fee Related CN104308281B (en)

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Application Number Priority Date Filing Date Title
CN201410533313.3A CN104308281B (en) 2014-10-11 2014-10-11 A kind of worm screw organisation of working

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Application Number Priority Date Filing Date Title
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CN104308281B CN104308281B (en) 2016-08-17

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86206381U (en) * 1986-09-04 1987-09-02 首都钢铁公司 Worm processing apparatus
DE19901338C1 (en) * 1999-01-15 2000-03-02 Reishauer Ag Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data
EP1747841A2 (en) * 2005-07-27 2007-01-31 Leistritz Aktiengesellschaft Device for manufacturing metal parts, particularly cylindrical screw profiles, by rotary machining and rolling processing of cylindrical blanks
CN201371295Y (en) * 2009-01-22 2009-12-30 杭州速能机械有限公司 Gear-type automatic tapping machine
CN201493565U (en) * 2009-07-01 2010-06-02 中山市业隆机电有限公司 Small-size precision worm dedicated machine tool
CN102500832A (en) * 2011-11-08 2012-06-20 南京彩云机械电子制造有限公司 Multi-start worm milling machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86206381U (en) * 1986-09-04 1987-09-02 首都钢铁公司 Worm processing apparatus
DE19901338C1 (en) * 1999-01-15 2000-03-02 Reishauer Ag Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data
EP1747841A2 (en) * 2005-07-27 2007-01-31 Leistritz Aktiengesellschaft Device for manufacturing metal parts, particularly cylindrical screw profiles, by rotary machining and rolling processing of cylindrical blanks
CN201371295Y (en) * 2009-01-22 2009-12-30 杭州速能机械有限公司 Gear-type automatic tapping machine
CN201493565U (en) * 2009-07-01 2010-06-02 中山市业隆机电有限公司 Small-size precision worm dedicated machine tool
CN102500832A (en) * 2011-11-08 2012-06-20 南京彩云机械电子制造有限公司 Multi-start worm milling machine

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COR Change of bibliographic data
CB03 Change of inventor or designer information

Inventor after: Ren Tingyou

Inventor after: Liu Yang

Inventor after: Wang Junqing

Inventor after: Zhou Gang

Inventor before: Song Beibei

TA01 Transfer of patent application right

Effective date of registration: 20160622

Address after: 256100 Yiyuan City, Shandong province Xincheng Road, the middle

Applicant after: STATE GRID SHANDONG PROVINCE ELECTRIC POWER COMPANY YIYUAN COUNTY POWER SUPPLY COMPANY

Address before: 312399 Zhejiang city of Shaoxing province Shangyu City South Village tide Baiguan Street No. five 4-33

Applicant before: Song Beibei

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Granted publication date: 20160817

Termination date: 20161011