CN104209599A - Worm machining device - Google Patents

Worm machining device Download PDF

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Publication number
CN104209599A
CN104209599A CN201410533384.3A CN201410533384A CN104209599A CN 104209599 A CN104209599 A CN 104209599A CN 201410533384 A CN201410533384 A CN 201410533384A CN 104209599 A CN104209599 A CN 104209599A
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China
Prior art keywords
blank
drive
bearing
sleeve
externally threaded
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CN201410533384.3A
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CN104209599B (en
Inventor
汪贤女
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FUJIAN SHENYUE CASTING CO., LTD.
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汪贤女
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Abstract

The invention provides a worm machining device. The worm machining device is used for machining a blank (1) into a worm, and comprises a movement mechanism, a base (91), an upright column (92), a milling cutter rotating driving motor (93) and a milling cutter (94); the movement mechanism is fixed on the base (91); the lower end of the upright column (92) is fixedly connected with the base (91); the milling cutter rotating driving motor (93) is mounted on the upper end of the upright column (92) and used for driving the milling cutter (94) to rotate; the milling cutter (94) is mounted on the milling cutter rotating driving motor (93) and used for cutting the blank (1); the movement mechanism comprises a blank carrying piece (2), a sleeve (3) with external threads, a driving sleeve (4) with internal threads and a frame (7).

Description

A kind of Worm processing apparatus
Technical field
The application relates to worm screw manufacture field, is specially a kind of Worm processing apparatus.
Background technology
Worm-drive is comprised of worm and worm wheel, and general worm screw is driving link.Worm screw is the same with screw thread dextrorotation and left-handed minute.Worm-drive tool has the following advantages: 1. gearratio is large, compact conformation.Number of threads represents (general Z1=1 ~ 4) with Z1, and the worm gear number of teeth represents with Z2.From gearratio formula, I=Z2/Z1 can find out, works as Z1=1, and worm screw is single head, and worm screw must turn Z2 and turn worm gear and just go around, thereby can obtain very big speed ratio, generally, in power transmission, gets gearratio I=10-80; In indexing mechanism, I can reach 1000.Large like this gearratio, as with gear drive, 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, it and worm-gear toothing are continuously while meshing, and worm tooth does not enter and exit the process of engagement, so stable working, and impact, vibrations, noise are 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 worm-drive also has that caloric value is large, the flank of tooth easily weares and teares, the shortcoming that cost is high.In order to improve transmission accuracy, to reduce wear, conventionally need to guarantee the form accuracy of worm gear profile of tooth.But the shape processing of worm gear profile of tooth makes trouble, and is difficult to ensure the teeth groove accuracy of form and position of processing.
In particular, in some concrete applications, for example flexible material (as plastics) processing, traditional metal processing mode will be difficult to meet the requirement that reduces costs and improve process velocity and precision.
Summary of the invention
The object of the invention is for the processing mode of a kind of worm screw is provided, it has advantages of that the single worm tooth shape precision simple, processing of process equipment is high.And, can meet the requirement reducing for processing cost especially tooling cost in some flexible materials.
According to aspects of the present invention, a kind of Worm processing apparatus, for blank forming is become to worm screw, comprise motion, base, column, milling cutter rotary drive motor and milling cutter, described motion is fixed on base, and the lower end of column is fixedly connected with base, milling cutter rotary drive motor is arranged on the upper end of column, be used for driving milling cutter rotation, milling cutter is arranged on described milling cutter rotary drive motor, for cutting described blank, described motion comprises blank bearing part, be with externally threaded sleeve, tapped drive sleeve and frame, blank bearing part is used for carrying described blank, the top and bottom of blank bearing part are with externally threaded quill to being fixedly mounted in described being with in externally threaded sleeve by upper bearing (metal) and lower bearing with respect to described respectively, describedly be with externally threaded bush whorl to be matched with in described tapped drive sleeve, the lower end of described tapped drive sleeve is arranged in frame by thrust bearing revolvably, the inside of frame has chamber, in described chamber, on the left inside sidewall of chamber of described frame, be 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, described the first bevel pinion and vertically bevel gear engagement, and the diameter of described vertical bevel gear is greater than the diameter of described the 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, vertically power transmission shaft by being arranged on the bearing of described transverse horizontal wall upside axial restraint and be circumferentially installed on revolvably described transverse horizontal wall and extend through described through hole and and described through hole between there is annular gap, vertically the lower end of power transmission shaft fixedly mounts described vertical bevel gear, vertically the top of 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, with the central axis of externally threaded sleeve and tapped drive sleeve, all overlap,
On the described external screw thread face with externally threaded sleeve, be also provided with axially extended chute, described frame is fixedly installed circumferential fixed structure, described circumferential fixed structure coordinates to be with externally threaded sleeve circumferentially to fix to described with described chute, and described circumferential fixed structure and described chute can relative to each other endwisely slip;
The middle position of described transverse horizontal wall is provided with the second bevel pinion structure integratedly, and described through hole is positioned at the central authorities of described the second bevel pinion structure;
Described bevel gear wheel part is the cylinder-like structure of right-hand member sealing, 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 that is positioned at described vertical power transmission shaft right side of described vertical bevel gear protrudes into described cylinder-like structure, described bevel gear wheel part and described the second bevel pinion structure engagement;
When described drive motors rotates, described bevel gear wheel part can drive described tapped drive sleeve to rotate, and then drives the described externally threaded sleeve and described blank bearing part and blank be with to move at vertical direction; Described the 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 on described blank, process worm screw teeth groove.
Pass through such scheme, by adopting bevel gear structure cylindraceous, can farthest by improving screw thread rotation speed, carry out lifting, like this can be in the situation that circumferentially rotating speed limits, at utmost improve the density of elevating screw thread, improve transmission accuracy, and can improve process velocity simultaneously; And, utilize this bevel gear structure cylindraceous, can spatially make full use of the transmission space in equipment cavity, other travelling gears are partly arranged on to this bevel gear inside configuration cylindraceous, rotating in hands-off situation and fully meeting drive mechanism requirement mutually, and saving the device space simultaneously; Owing to having adopted the fixedly transmission of the gears at different levels of the number of teeth, in the situation that thread pitch is certain, can guarantee that the proportionate relationship between rotational angular velocity and riser speed is constant, therefore, this has guaranteed the precision of slot form in processing spiral alveolar process; And, by specific concrete structure, arranging, the rotation that can realize circumferential angular speed slows down as far as possible, with respect to the linear velocity rising, rotary speed is as far as possible slow, thereby can adopt the screw thread transmission that precision is high, when meeting the shape need of worm screw, can improve the form accuracy of processing.Meanwhile, utilize fixing that power transmission shaft rotates external thread sleeve, therefore can guarantee that it does not follow inner thread sleeve rotation; And, the central axes of middle power transmission shaft and the miscellaneous part of rotation, this guaranteed power transmission shaft rotation can with the irrelevant to rotation of plummer, thereby can rotate independently.Utilize unique blind hole structure, can when rising, guarantee that basic fixed structure is constant, thereby can not affect the transmission of power transmission shaft and for fixing in the rotation of screw shell.Upward system is tightly used single drive motors, just can realize two kinds of motions that the rotation of Gear Processing is risen drives, guaranteed the proportional precision between two kinds of motions simultaneously, therefore, can meet the requirement of manufacturing equipment cost control, can meet the antagonism requirement for the cutting force of particular process material simultaneously, and can meet the form accuracy requirement of gear tooth slot, it is not subject to the impact of processing environment confusion, for the maintenance of process equipment, the workflow management of process all has the tolerance degree of increasing.
Accompanying drawing explanation
The structural representation that Fig. 1 is motion of the present invention in the time of propradation not;
Fig. 2 is the structural representation of motion of the present invention after rising.
The specific embodiment
Below in conjunction with accompanying drawing 1-2, the present invention is described in detail.
A kind of Worm processing apparatus, for blank 1 is processed into worm screw, comprise motion, base 91, column 92, milling cutter rotary drive motor 93 and milling cutter 94, described motion is fixed on base 91, the lower end of column 92 is fixedly connected with base 91, and milling cutter rotary drive motor 93 is arranged on the upper end of column 92, for driving milling cutter 94 rotations, milling cutter 94 is arranged on described milling cutter rotary drive motor 93, for cutting described blank 1, described motion 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 with externally threaded sleeve 3 axial restraints and are arranged on described being with in externally threaded sleeve 3 with respect to described by upper bearing (metal) 21 and lower bearing 22 respectively, describedly be with externally threaded sleeve 3 threaded engagement in described tapped drive sleeve 4, the lower end of described tapped drive sleeve 4 is arranged in frame 7 revolvably by thrust bearing 47, the inside of frame 7 has chamber 72, in described chamber 72, on the left inside sidewall of chamber of described frame 7, be 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, described the first bevel pinion 51 and vertically bevel gear 61 engagements, and the diameter of described vertical bevel gear 61 is greater than the diameter of described the 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, vertically power transmission shaft 6 by being arranged on the bearing of described transverse horizontal wall 43 upsides axial restraint and be circumferentially installed on revolvably described transverse horizontal wall 43 and extend through described through hole 42 and and described through hole 42 between there is annular gap, vertically the lower end of power transmission shaft 6 fixedly mounts described vertical bevel gear 61, vertically the top of 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, with the central axis of externally threaded sleeve 3 and tapped drive sleeve 4, all overlap,
On the described external screw thread face with externally threaded sleeve 3, be also provided with axially extended chute 31, described frame 7 is fixedly installed circumferential fixed structure 71, described circumferential fixed structure 71 coordinates to be with externally threaded sleeve 3 circumferentially to fix to described with described chute 31, and described circumferential fixed structure 71 can relative to each other endwisely slip with described chute 31;
The middle position of described transverse horizontal wall 43 is provided with the second bevel pinion structure 41 integratedly, and described through hole 42 is positioned at the central authorities of described the second bevel pinion structure 41;
Described bevel gear wheel part 52 is the cylinder-like structure of right-hand member sealing, left end opening, the central axes of the central axis of described cylinder-like structure and described horizontal drive shaft 5, the left end arranged outside of the barrel of described cylinder-like structure has cone toothing, the part that is positioned at described vertical power transmission shaft 6 right sides of described vertical bevel gear 61 protrudes into described cylinder-like structure, described bevel gear wheel part 52 and described the second bevel pinion structure 41 engagements;
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 described externally threaded sleeve 3 and described blank bearing part 2 and blank 1 be with to move at vertical direction; Described the 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 on described blank 1, process worm screw teeth groove.

Claims (1)

1. a Worm processing apparatus, for blank (1) is processed into worm screw, comprise motion, base (91), column (92), milling cutter rotary drive motor (93) and milling cutter (94), described motion is fixed on base (91), the lower end of column (92) is fixedly connected with base (91), milling cutter rotary drive motor (93) is arranged on the upper end of column (92), be used for driving milling cutter (94) rotation, it is upper that milling cutter (94) is arranged on described milling cutter rotary drive motor (93), for cutting described blank (1), described motion 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 with externally threaded sleeve (3) axial restraint and are arranged on described being with in externally threaded sleeve (3) with respect to described by upper bearing (metal) (21) and lower bearing (22) respectively, described externally threaded sleeve (3) threaded engagement of being with is in described tapped drive sleeve (4), the lower end of described tapped drive sleeve (4) is arranged in frame (7) revolvably by thrust bearing (47), the inside of frame (7) has chamber (72), in described chamber (72), on the left inside sidewall of chamber of described frame (7), be 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 the first bevel pinion (51) and vertically bevel gear (61) engagement, the diameter of described vertical bevel gear (61) is greater than the diameter of described the 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), vertically power transmission shaft (6) by being arranged on the bearing of described transverse horizontal wall (43) upside axial restraint and be circumferentially installed on revolvably described transverse horizontal wall (43) and extend through described through hole (42) and and described through hole (42) between there is annular gap, vertically the lower end of power transmission shaft (6) fixedly mounts described vertical bevel gear (61), vertically the top of 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), with the central axis of externally threaded sleeve (3) and tapped drive sleeve (4), all overlap,
On the described external screw thread face with externally threaded sleeve (3), be also provided with axially extended chute (31), described frame (7) is fixedly installed circumferential fixed structure (71), described circumferential fixed structure (71) coordinates that with described chute (31) the described externally threaded sleeve (3) of being with is circumferentially fixed, and described circumferential fixed structure (71) can relative to each other endwisely slip with described chute (31);
The middle position of described transverse horizontal wall (43) is provided with the second bevel pinion structure (41) integratedly, and described through hole (42) is positioned at the central authorities of described the second bevel pinion structure (41);
Described bevel gear wheel part (52) is the cylinder-like structure of right-hand member sealing, left end opening, the central axes of the central axis of described cylinder-like structure and described horizontal drive shaft (5), the left end arranged outside of the barrel of described cylinder-like structure has cone toothing, the part that is positioned at described vertical power transmission shaft (6) right side of described vertical bevel gear (61) protrudes into described cylinder-like structure, described bevel gear wheel part (52) and described the second bevel pinion structure (41) engagement;
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 described externally threaded sleeve (3) and described blank bearing part (2) and blank (1) be with to move at vertical direction; Described the 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 on described blank (1), process worm screw teeth groove.
CN201410533384.3A 2014-10-11 2014-10-11 A kind of Worm processing apparatus Active CN104209599B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410533384.3A CN104209599B (en) 2014-10-11 2014-10-11 A kind of Worm processing apparatus

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Application Number Priority Date Filing Date Title
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CN104209599B CN104209599B (en) 2016-05-04

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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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Inventor after: Zhan Jufeng

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Address after: 363900 Changtai County Economic Development Zone, Zhangzhou Province, the ancient agricultural farm silver Tong Industrial Park

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Address before: Choujiang 322099 Yiwu city in Zhejiang province Jinhua City five building 1, No. 1 risson

Applicant before: Wang Xiannv

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