CN101966611B - Cutter holder mechanism for numeric control gear shaper - Google Patents
Cutter holder mechanism for numeric control gear shaper Download PDFInfo
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- CN101966611B CN101966611B CN 201010559697 CN201010559697A CN101966611B CN 101966611 B CN101966611 B CN 101966611B CN 201010559697 CN201010559697 CN 201010559697 CN 201010559697 A CN201010559697 A CN 201010559697A CN 101966611 B CN101966611 B CN 101966611B
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- cutter
- torque motor
- control gear
- hydraulic cylinder
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound 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 description 8
- 238000003754 machining Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000202814 Cochliomyia hominivorax Species 0.000 description 2
- 241001125879 Gobio Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000010862 gear shaping Methods 0.000 description 2
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Abstract
The invention relates to a cutter holder mechanism for a numeric control gear shaper, which mainly comprises a cutter shaft, a sliding block, a cutter holder body and a motor. The cutter holder mechanism is characterized in that one end of the cutter shaft is connected with a hydraulic cylinder through a bearing, the other end of the cutter shaft is connected with a cutter connecting sleeve, and the exterior of the cutter shaft is sheathed with the sliding block; a plug cover is connected under the hydraulic cylinder and is provided with a brake assembly, and the lower part of the plug cover is connected with the cutter holder body and a torque motor base; a torque motor stator and a turntable bearing are fixed on the torque motor base; an inner ring of the turntable bearing is equipped with a steel grid ruler and a middle sleeve, the middle sleeve is equipped with a torque motor rotor and a fixed block, and the fixed block is equipped with embedded strips; and the hydraulic cylinder is equipped with a magnetic grid ruler. The cutter holder mechanism has the advantages of solving the problems of insufficient cutting force and limited cutting length of the cutter holder, low rotation precision and slow rotation speed of the cutter shaft and the like, and greatly improving the overall machining precision of the large-sized numeric control gear shaper.
Description
Technical field
The invention belongs to the gear machining technology field, particularly relate to a kind of digital control gear shaper cutter frame mechanism.
Background technology
The knife rest of gear shapping machine is fixed on the column of digital control gear shaper.When the slotting spur gear, the reciprocating motion of cutter shaft provides the cutting movement of gear shaping in the knife rest, cutter shaft at the uniform velocity rotation according to certain rules all the time in the process of cutting; When the slotting helical gear, the reciprocating motion of cutter shaft provides the cutting movement of gear shaping in the knife rest, cutter shaft acceleration and deceleration according to certain rules all the time rotation in the process of cutting.And the response speed of reciprocating haul distance of cutter shaft and linearity, cutting force, gyration and positioning accuracy all are the prerequisites that guarantee the whole machining accuracy of digital control gear shaper.
At present; The cutter frame mechanism of medium and small digital control gear shaper mainly comprises formations such as cutter shaft, slide block, fixed block, intermediate sleeve, tool-post structure and Worm and worm-wheel gearing; The driving mechanism variable-frequency motor of digital control gear shaper or spindle motor drive slider-crank mechanism or crank and rocker mechanism motion; Then slider in crank-slider mechanism move up and down or the swing of the rocking bar of crank and rocker mechanism drives the cutter shaft motion; Thereby make the cutter shaft formation cutting movement that pumps, and realize dynamic equilibrium and auxiliary cutter shaft return through spring.And on the large-sized numerical control gear shapping machine, existing structure can not satisfy the requirement of cutting, and the power that spring also is not enough to provide enough makes cutter shaft get back to original position.The gyration of cutter shaft all drives endless screw-worm gear mechanism by servomotor and realizes, and the positioning accuracy of endless screw-worm gear mechanism has the upper limit, and enough fast rotary speed and response speed can not be provided.Can satisfy cutter frame mechanism large-scale, that the precision gear cutting requires so urgent need is a kind of.
Summary of the invention
The present invention provides a kind of the driving by servo hydraulic cylinder that the digital control gear shaper cutter frame mechanism that cutter shaft moves back and forth, the torque motor driving provides the cutter shaft gyration is provided for solving the technical problem that exists in the known technology.
The objective of the invention is to solve the large-sized numerical control gear shapping machine because cutting force is not enough, length of cut is restricted, the cutter shaft rotating accuracy is low, the cutter shaft speed of gyration waits former slowly thereby can't satisfy that cutting is large-scale, the problem of precision gear, and provide a kind of the driving to provide that cutter shaft moves back and forth, torque motor drives the digital control gear shaper cutter frame mechanism that the cutter shaft gyration is provided with servo hydraulic cylinder.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: the digital control gear shaper cutter frame mechanism; Mainly comprise cutter shaft, slide block, tool-post structure and motor, it is characterized in that: said cutter shaft one end is connected with through bearing and is used to drive it and does the hydraulic cylinder of cutting movement up and down reciprocatingly, and the other end connects cutter and connects cover; The outside suit slide block of cutter shaft; Be connected with bayonet cap below the said hydraulic cylinder, the brake assembly that is used to prevent the cutter shaft downslide is installed on the said bayonet cap, said motor is a torque motor; The bayonet cap bottom connects tool-post structure and torque motor pedestal; Be fixed with torque motor stator and turntable bearing on the said torque motor pedestal, steel grid chi and intermediate sleeve are housed on the turntable bearing inner race, torque motor rotor and fixed block are housed on the said intermediate sleeve; Fixed block is provided with panel, and said hydraulic cylinder is provided with magnetic railings ruler.
The present invention can also adopt following technical scheme:
Said brake assembly is to be made up of with the brake block that is connected with the electromagnet inboard two blocks of electromagnet that are installed on the bayonet cap.
The piston rod of said hydraulic cylinder is fixedly connected with the slipper of bearing.
Said turntable bearing is a three-row cylinder roller turntable bearing, is used to guarantee the cutter shaft rotating accuracy.
Said cutter shaft and cutter shaft are trapped to cooperate and contacts, overlap cooperation on slide block and the cutter shaft and contact.
Advantage and good effect that the present invention has are: because the present invention adopts technique scheme, promptly adopt servo hydraulic cylinder to drive the reciprocating motion of the cutter shaft arbitrary motion rule of digital control gear shaper cutter frame mechanism; On the torque motor pedestal, be fixed with the three-row cylinder roller turntable bearing that is used to guarantee the cutter shaft rotating accuracy; Drive cutter shaft through torque motor and do gyration, utilize the two fixed blocks of axial symmetry, two panel structure when transmitting rotary driving force, to guarantee torque motor centre of gyration symmetry; Be provided with the panel that is used to fill up the gap between slide block and the fixed block on the fixed block; And then solved that its cutting force is not enough, length of cut is restricted, the cutter shaft rotating accuracy is low, the cutter shaft speed of gyration waits problem slowly, has increased substantially the whole machining accuracy of large-sized numerical control gear shapping machine.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: 1, servo hydraulic cylinder; 2, linear bearing; 3, piston rod; 4, double-direction thrust ball bearing; 5, brake block; 6, electromagnet; 7, bayonet cap; 8, cutter shaft; 9, slide block; 10, fixed block; 11, intermediate sleeve; 12, built-in type torque motor rotor; 13, built-in type torque motor stator; 14, gudgeon; 15, torque motor pedestal; 16, cylindrical roller turntable bearing; 17, overlap on the cutter shaft; 18, tool-post structure; 19, cutter shaft is trapped; 20, cutter connects cover; 21, panel; 22, magnetic railings ruler; 23, steel grid chi.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1 and Fig. 2, the digital control gear shaper cutter frame mechanism mainly comprises cutter shaft 8, slide block 9, tool-post structure 18 and torque motor.Said cutter shaft 8 one ends are connected with through linear bearing 2 and are used to drive it and do the servo hydraulic cylinder 1 of cutting movement up and down reciprocatingly, and the other end is connected with cutter and connects cover 20, the outside suit slide block of cutter shaft, and said cutter connects cover 20 and moves back and forth with cutter shaft with slide block 9.The piston rod 3 of said hydraulic cylinder is fixedly connected with the slipper of linear bearing 2; Servo hydraulic cylinder 1 drives piston rod 3; Piston rod 3 moves reciprocatingly through double-direction thrust ball bearing 4 push-and-pull cutter shafts 8, and traps through cover 17 on the cutter shaft and cutter shaft and 19 to give and positioning supports.The double-direction thrust ball bearing of piston rod and the inside also can play the effect into hydraulic cylinder axle and cutter shaft aligning on rectilinear direction when transmitting cutting force.Be connected with bayonet cap 7 below the hydraulic cylinder, the brake assembly that is used to prevent the cutter shaft downslide is installed on the said bayonet cap 7.Said brake assembly is to be made up of with the brake block 5 that is connected with the electromagnet inboard two blocks of electromagnet 6 that are installed on the bayonet cap.Be connected with tool-post structure 18 and torque motor pedestal 15 in the bayonet cap bottom; Be fixed with built-in type torque motor stator 13 and three-row cylinder roller turntable bearing 16 on the said torque motor pedestal, said three-row cylinder roller turntable bearing 16 is used to guarantee the cutter shaft rotating accuracy.On the inner ring of cylindrical roller turntable bearing intermediate sleeve 11 is installed, built-in type torque motor rotor 12 and two fixed blocks 10 are housed on the said intermediate sleeve, every fixed block is provided with panel 21, and this panel 21 is mainly used in the gap that fills up between slide block and the fixed block.Said hydraulic cylinder is provided with magnetic railings ruler 22, and steel grid chi 23 is housed on the turntable bearing inner race, through magnetic railings ruler 22 and steel grid chi 23 position signalling that cutter shaft moves up and down with gyration is fed back to digital control system, accomplishes the control of full cut-off ring.
Said cutter frame mechanism through with tool-post structure fixing about two gudgeons 14 support and be installed on the column of digital control gear shaper.
During setting in motion, two electromagnet 6 drive brake block 5, and brake block is moved to outermost position, promptly reserve the reciprocating space of cutter shaft.The reciprocating motion of cutter shaft arbitrary motion rule is provided by servo hydraulic cylinder 1; Servo hydraulic cylinder 1 drives piston rod 3; Piston rod 3 moves reciprocatingly through double-direction thrust ball bearing 4 push-and-pull cutter shafts 8; Slide block 9 connects cover 20 with cutter and moves back and forth with cutter shaft 8, and traps through cover 17 on the cutter shaft and cutter shaft and 19 to give and positioning supports, moves the piston rotation with restriction servo hydraulic cylinder 1 on the location guide of linear bearing 2.In motion process, the inner ring of three-row cylinder roller turntable bearing 16, intermediate sleeve 11, built-in type torque motor rotor 12, two fixed blocks 10 and two panels 21 turn round simultaneously, and drive cutter shaft 8 and connect cover 20 with slide block 9, cutter and do gyration.The gyration that reciprocating motion and torque motor through cutter shaft 8 applies makes the cutter shaft motion of can spinning, to cut the roller gear of any helical angle.When shutting down, cutter shaft 8 connects cover 20 with slide block 9, cutter and is parked in uppermost position in fig-ure, at this moment; Two electromagnet 6 drive brake block 5; Make brake block 5 move and block the cutter shaft flange, in case the solution stopping cylinder pressure is when shutting down, because the hydraulic cylinder draining causes freely gliding of cutter shaft to cutter axis orientation.
Claims (5)
1. a digital control gear shaper cutter frame mechanism mainly comprises cutter shaft, slide block, tool-post structure and motor, it is characterized in that: said cutter shaft one end is connected with through bearing and is used to drive it and does the hydraulic cylinder of cutting movement up and down reciprocatingly; The other end connects cutter and connects cover, is connected with bayonet cap below the outside suit slide block of cutter shaft, said hydraulic cylinder; The brake assembly that is used to prevent the cutter shaft downslide is installed on the said bayonet cap; Said motor is a torque motor, and the bayonet cap bottom connects tool-post structure and torque motor pedestal, is fixed with torque motor stator and turntable bearing on the said torque motor pedestal; Steel grid chi and intermediate sleeve are housed on the turntable bearing inner race; Torque motor rotor and fixed block are housed on the said intermediate sleeve, and fixed block is provided with panel, and said hydraulic cylinder is provided with magnetic railings ruler.
2. digital control gear shaper cutter frame mechanism according to claim 1 is characterized in that: said brake assembly is to be made up of with the brake block that is connected with the electromagnet inboard two blocks of electromagnet that are installed on the bayonet cap.
3. digital control gear shaper cutter frame mechanism according to claim 1 is characterized in that: the piston rod of said hydraulic cylinder is fixedly connected with the slipper of bearing.
4. digital control gear shaper cutter frame mechanism according to claim 1 is characterized in that: said turntable bearing is a three-row cylinder roller turntable bearing, is used to guarantee the cutter shaft rotating accuracy.
5. digital control gear shaper cutter frame mechanism according to claim 1 is characterized in that: said cutter shaft and cutter shaft are trapped to cooperate and contacts, overlap cooperation on said slide block and the cutter shaft and contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010559697 CN101966611B (en) | 2010-11-25 | 2010-11-25 | Cutter holder mechanism for numeric control gear shaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010559697 CN101966611B (en) | 2010-11-25 | 2010-11-25 | Cutter holder mechanism for numeric control gear shaper |
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| Publication Number | Publication Date |
|---|---|
| CN101966611A CN101966611A (en) | 2011-02-09 |
| CN101966611B true CN101966611B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010559697 Active CN101966611B (en) | 2010-11-25 | 2010-11-25 | Cutter holder mechanism for numeric control gear shaper |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198544B (en) * | 2011-06-22 | 2012-11-28 | 宜昌市致远新技术有限公司 | Hydraulic follow-up tool rest for gear shaping machine |
| CN102615541A (en) * | 2012-04-10 | 2012-08-01 | 宁波东平齿轮制造有限公司 | Gear shaper |
| CN111940850B (en) * | 2020-07-23 | 2022-11-15 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Helical gear shaping method based on electronic helical guide rail |
| CN112719472B (en) * | 2020-12-16 | 2022-03-01 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Intelligent circular slotting cutter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205806A (en) * | 1991-02-20 | 1993-04-27 | Tsugami Corporation | Composite-machining machine tool |
| CN101125384A (en) * | 2007-09-29 | 2008-02-20 | 南京二机齿轮机床有限公司 | Gear shaping machine with slide board type knife rack |
| CN201076956Y (en) * | 2007-09-29 | 2008-06-25 | 南京二机齿轮机床有限公司 | Slotting cutter chucking fixture capable of changing tools rapidly |
| CN201089046Y (en) * | 2007-08-30 | 2008-07-23 | 陈立新 | Combined blade carrier of gear hobbing machine |
| CN201862871U (en) * | 2010-11-25 | 2011-06-15 | 天津第一机床总厂 | Cutter frame mechanism of numerical control gear shaper |
-
2010
- 2010-11-25 CN CN 201010559697 patent/CN101966611B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205806A (en) * | 1991-02-20 | 1993-04-27 | Tsugami Corporation | Composite-machining machine tool |
| CN201089046Y (en) * | 2007-08-30 | 2008-07-23 | 陈立新 | Combined blade carrier of gear hobbing machine |
| CN101125384A (en) * | 2007-09-29 | 2008-02-20 | 南京二机齿轮机床有限公司 | Gear shaping machine with slide board type knife rack |
| CN201076956Y (en) * | 2007-09-29 | 2008-06-25 | 南京二机齿轮机床有限公司 | Slotting cutter chucking fixture capable of changing tools rapidly |
| CN201862871U (en) * | 2010-11-25 | 2011-06-15 | 天津第一机床总厂 | Cutter frame mechanism of numerical control gear shaper |
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| Publication number | Publication date |
|---|---|
| CN101966611A (en) | 2011-02-09 |
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Effective date of registration: 20200326 Address after: 300385 No.11, Zhuyuan Road, Dasi high tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin Patentee after: Tianjin First Machine Tool Co.,Ltd. Address before: 300180, No. 146 Jintang Road, Hedong District, Tianjin Patentee before: TIANJIN NO.1 MACHINE TOOL WORKS |
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Address after: No. 11, Chuyuan Road, Dasi Hi tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin, 300385 Patentee after: General Technology Group Tianjin First Machine Tool Co.,Ltd. Country or region after: China Address before: No. 11, Chuyuan Road, Dasi Hi tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin, 300385 Patentee before: Tianjin First Machine Tool Co.,Ltd. Country or region before: China |