CN204632232U - Mill teeth gear hobbing gear shaping one teaching aid - Google Patents

Mill teeth gear hobbing gear shaping one teaching aid Download PDF

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Publication number
CN204632232U
CN204632232U CN201520234688.XU CN201520234688U CN204632232U CN 204632232 U CN204632232 U CN 204632232U CN 201520234688 U CN201520234688 U CN 201520234688U CN 204632232 U CN204632232 U CN 204632232U
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CN
China
Prior art keywords
driving
sliding
gear
cutter
frame
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Expired - Fee Related
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CN201520234688.XU
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Chinese (zh)
Inventor
谢尧
罗红
薛赞
唐小莉
张冬琴
徐宁
邓志龙
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Chongqing Jiaotong University
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Chongqing Jiaotong University
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Priority to CN201520234688.XU priority Critical patent/CN204632232U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of mill teeth gear hobbing gear shaping one teaching aid, comprise frame and be installed on localization part, gear shaping part, the gear hobbing part of frame and wash toothed portion, described gear shaping part, gear hobbing part and mill teeth part along the left side of frame, right side and rear side arrange, mill teeth gear hobbing gear shaping one teaching aid of the present utility model, can be applicable to each Technical colleges, the particularly mechanical principle of mechanical major, processing, the teaching demonstration of the courses such as equipment, the centre distance changing workpiece and cutter during gear hobbing process can also be utilized to observe the Undercutting Phenomenon of gear simultaneously, embody gear machine-shaping and Undercutting Phenomenon, structure is simple, convenient observation, copy, make student by this instrument rising to perceptual knowledge to the rational knowledge of machining device in the past, the colleges and universities lacking practical teaching concerning only having textbook education, there is very important effect.

Description

Mill teeth gear hobbing gear shaping one teaching aid
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of mill teeth gear hobbing gear shaping one teaching aid.
Background technology
Machinery manufacturing industry occupies extremely important effect in national economy, is the mainstay of countries and regions economic development.Gear mechanism is a kind of mechanism be most widely used in various machine, along with the technology of advanced person is in development, the Gear Processing experiment the most basic in our laboratory all can not get general, up to the present, almost do not have method on classroom, intuitively show job operation and the forming principle of various gear to student, the Cutting Gear in experiment can only be leaned on to experience Gear Processing process.Gear-driven relevant knowledge is extremely important in mechanical principle course, upper class hour teacher at most also can only put the video of some machining gears, and student cannot be allowed in person to observe process, so the design of education experiment type gear working machine is necessary completely.It represents real entity at the moment by while Students ' Learning knowwhy, makes student integrading theory with practice, can erase that ambiguous concept.
Therefore, for reaching this purpose, needing a kind ofly to collect the teaching mode that multiple Gear Processing takes shape in one and show machinery---the shaping and principle of multi-class Gear Processing shows multi-function test stand, can take action on one's own to process, student is allowed fully to understand generation method and profiling ratio juris and difference, excite the learning interest of classmates, sharpen understanding gear formation basic theory.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of mill teeth gear hobbing gear shaping one teaching aid, can be applicable to each Technical colleges, the particularly teaching demonstration of the course such as mechanical principle, processing, equipment of mechanical major, embody gear machine-shaping and Undercutting Phenomenon, structure is simple, convenient observation, imitation, making student by this instrument rising to perceptual knowledge to the rational knowledge of machining device in the past, the colleges and universities lacking practical teaching concerning only having textbook education, there is very important effect.
Mill teeth gear hobbing gear shaping one teaching aid of the present utility model, comprises frame and is installed on localization part, gear shaping part, the gear hobbing part of frame and washes toothed portion; Described gear shaping part, gear hobbing part and mill teeth part along the left side of frame, right side and rear side arrange;
Further, described localization part comprise for fixation workpiece and can rotation and translation worktable and for driving the first driven unit of worktable rotation and translation; Described gear shaping part comprises pinion cutter and for driving pinion cutter rotation and along vertical reciprocating second driven unit; Described gear hobbing part comprises gear hobbing cutter and for driving gear hobbing cutter rotation and the 3rd driven unit along vertically movement; Described mill teeth part comprises rest for gear milling tool and for driving rest for gear milling tool rotation and the four-wheel drive assembly along vertically movement;
Further, described first driven unit comprise horizontal slip be connected to frame sliding panel, be fixed on sliding panel for driving the first Autorotation driving device of worktable rotation and being fixed on first sliding driving device for driving sliding panel horizontal slip of frame;
Further, described worktable is rotationally connected with sliding panel by the workpiece turning axle single-degree-of-freedom vertically arranged; Described workpiece turning axle is connected with the pto of the first Autorotation driving device; Described sliding panel is connected to the first sliding driving device by the first lead screw transmission, and sliding panel and the first leading screw are connected to form screw pair;
Further, described second driven unit comprise vertically be slidably connected to frame slotting tool sliding floor, be fixed on slotting tool sliding floor for driving the second Autorotation driving device of pinion cutter rotation and being fixed on second sliding driving device for driving slotting tool sliding floor vertically to slide of frame;
Further, described pinion cutter is rotationally connected with slotting tool sliding floor by the slotting tool axle single-degree-of-freedom vertically arranged; Described slotting tool axle is connected with the pto of the second Autorotation driving device; Described slotting tool sliding floor is in transmission connection in the second sliding driving device by planar linkage mechanism; Described planar linkage mechanism comprises the eccentric wheel being rotationally connected with frame by horizontal rotating shaft single-degree-of-freedom and the connecting rod be connected between eccentric wheel and slotting tool sliding floor; Described horizontal rotating shaft is in transmission connection in the power output shaft of the second sliding driving device;
Further, described 3rd driven unit comprise vertical single-degree-of-freedom be slidably connected to frame hobboing cutter sliding floor, be fixed on hobboing cutter sliding floor for driving the 3rd Autorotation driving device of gear hobbing cutter rotation and being fixed on the 3rd sliding driving device for driving hobboing cutter sliding floor vertically to slide of frame; Described gear hobbing cutter is rotationally connected with hobboing cutter sliding floor by horizontally disposed cutter shaft single-degree-of-freedom; Described cutter shaft is connected with the pto of the 3rd Autorotation driving device; Described hobboing cutter sliding floor is connected to the 3rd sliding driving device by the second lead screw transmission, and hobboing cutter sliding floor and the second leading screw are connected to form screw pair;
Further, described four-wheel drive assembly comprise vertical single-degree-of-freedom be slidably connected to frame milling cutter sliding floor, be fixed on milling cutter sliding floor for driving the 4th Autorotation driving device of rest for gear milling tool rotation and being fixed on the 4th sliding driving device for driving milling cutter sliding floor vertically to slide of frame; Described rest for gear milling tool is rotationally connected with milling cutter sliding floor by horizontally disposed cutter spindle single-degree-of-freedom; Described cutter spindle is connected with the pto of the 4th Autorotation driving device; Described milling cutter sliding floor is connected to the 4th sliding driving device by the 3rd lead screw transmission, and milling cutter sliding floor and the 3rd leading screw are connected to form screw pair;
Further, described frame adopts acrylic board to make;
Further, described first Autorotation driving device, the first sliding driving device, the second Autorotation driving device, the second sliding driving device, the 3rd Autorotation driving device, the 3rd sliding driving device, the 4th Autorotation driving device, the 4th sliding driving device are stepper motor.
The beneficial effects of the utility model are: mill teeth gear hobbing gear shaping one teaching aid of the present utility model, can be applicable to each Technical colleges, the particularly mechanical principle of mechanical major, processing, the teaching demonstration of the courses such as equipment, the centre distance changing workpiece and cutter during gear hobbing process can also be utilized to observe the Undercutting Phenomenon of gear simultaneously, embody gear machine-shaping and Undercutting Phenomenon, structure is simple, convenient observation, copy, make student by this instrument rising to perceptual knowledge to the rational knowledge of machining device in the past, the colleges and universities lacking practical teaching concerning only having textbook education, there is very important effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is localization part structural representation;
Fig. 3 is the A-A cut-open view of Fig. 2;
Fig. 4 is the B-B cut-open view of Fig. 2;
Fig. 5 is gear shaping part-structure schematic diagram;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is gear hobbing part-structure schematic diagram;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is mill teeth part-structure schematic diagram;
Figure 10 is the left view of Fig. 9.
Embodiment
Fig. 1 is structural representation of the present utility model; Fig. 2 is localization part structural representation; Fig. 3 is the A-A cut-open view of Fig. 2; Fig. 4 is the B-B cut-open view of Fig. 2; Fig. 5 is gear shaping part-structure schematic diagram; Fig. 6 is the left view of Fig. 5; Fig. 7 is gear hobbing part-structure schematic diagram; Fig. 8 is the left view of Fig. 7; Fig. 9 is mill teeth part-structure schematic diagram; Figure 10 is the left view of Fig. 9; As shown in the figure: the mill teeth gear hobbing gear shaping one teaching aid of the present embodiment, comprises frame 1 and be installed on localization part 2, gear shaping part 3, the gear hobbing part 4 of frame 1 and wash toothed portion; Described gear shaping part 3, gear hobbing part 4 and mill teeth part 5 along the left side of frame 1, right side and rear side arrange; See Fig. 1, gear shaping part 3 is arranged in the left side of frame 1, gear hobbing part 4 is arranged in the rear side of frame 1, mill teeth part 5 is arranged in the right side of frame 1, the position of gear shaping part 3, gear hobbing part 4 and mill teeth part 5 can exchange, integrate gear shaping, mill teeth and hobbing method to demonstrate, and can Undercutting Phenomenon be demonstrated, show on front side of frame 1, for exhibitor staff's viewing, by while Students ' Learning knowwhy, real entity being represented at the moment, making student integrading theory with practice, actual production can be understood.
In the present embodiment, described localization part 2 comprise for fixation workpiece 6 and can rotation and translation worktable 7 and for driving the first driven unit of worktable 7 rotation and translation; Described gear shaping part 3 comprises pinion cutter 8 and for driving pinion cutter 8 rotation and along vertical reciprocating second driven unit; Described gear hobbing part 4 comprises gear hobbing cutter 9 and for driving gear hobbing cutter 9 rotation and the 3rd driven unit along vertically movement; Described mill teeth part 5 comprises rest for gear milling tool 10 and for driving rest for gear milling tool 10 rotation and the four-wheel drive assembly along vertically movement, the translation direction of worktable 7 and pinion cutter 8, gear hobbing cutter 9 are identical with the orientation of rest for gear milling tool 10, therefore drive worktable 7 translational energy that workpiece 6 is delivered to gear shaping station, gear hobbing station and mill teeth station, demonstrate gear shaping, mill teeth and hobbing method respectively, worktable 7 rotation can drive workpiece 6 to rotate around vertical axes to coordinate corresponding pinion cutter 8, gear hobbing cutter 9 or rest for gear milling tool 10 to carry out Gear Processing.
In the present embodiment, described first driven unit comprises the sliding panel 11 that horizontal slip is connected to frame 1, be fixed on sliding panel 11 for driving the first Autorotation driving device 12 of worktable 7 rotation and being fixed on first sliding driving device 13 for driving sliding panel 11 horizontal slip of frame 1, frame 1 comprises the rectangular box 14 be made up of multiple acrylic board, sliding panel 11, first Autorotation driving device 12 and the first sliding driving device 13 are all arranged in rectangular box 14, sliding panel 11 is slidably connected to the base plate of rectangular box 14 by two horizontally disposed guide poles, simple and compact for structure, reliable, carry out hiding preferably to the physical construction irrelevant with teaching, avoid causing confusion sense to the vision of exhibitioner, and can also the mechanical mechanism in rectangular box 14 effectively be protected, increase the service life.
In the present embodiment, described worktable 7 is rotationally connected with sliding panel 11 by workpiece turning axle 15 single-degree-of-freedom vertically arranged, described workpiece turning axle 15 is connected with the pto of the first Autorotation driving device 12, described sliding panel 11 is in transmission connection in the first sliding driving device 13 by the first leading screw 16, sliding panel 11 and the first leading screw 16 are connected to form screw pair, workpiece turning axle 15 can be wholely set with the power output shaft of the first Autorotation driving device 12, also be in transmission connection by shaft coupling or other gear trains, all the purpose of this utility model can be realized, and adopt feed screw nut auxiliary structure to drive sliding panel 11 to move, ratio of gear is larger, the load of the first sliding driving device 13 is told somebody what one's real intentions are, be beneficial to the even running of system, screw pair realizes the lock-bit of sliding panel 11 by helicitic texture simultaneously.
In the present embodiment, described second driven unit comprise vertically be slidably connected to frame 1 slotting tool sliding floor 17, be fixed on slotting tool sliding floor 17 for driving the second Autorotation driving device 18 of pinion cutter 8 rotation and being fixed on second sliding driving device 19 for driving slotting tool sliding floor 17 vertically to slide of frame 1; Frame 1 also comprises the erecting frame 20 for installing slotting tool sliding floor 17, second sliding driving device 19 be installed in rectangular box 14; Described erecting frame 20 comprises parallel two risers being oppositely arranged and the top board be fixed between two risers and middle transverse slat, second sliding driving device 19 is installed on top board end face, slotting tool sliding floor 17 is slidably connected to the side of a riser by the guide pole that two are vertically arranged, middle transverse slat is used for strengthening erecting frame 20 structure, two risers are connected to rectangular box 14 along the direction horizontal slip perpendicular with worktable 7 glide direction, can according to the distance between workpiece 6 size adjustment pinion cutter 8 and workpiece 6.
In the present embodiment, described pinion cutter 8 is rotationally connected with slotting tool sliding floor 17 by slotting tool axle 21 single-degree-of-freedom vertically arranged; Described slotting tool axle 21 is connected with the pto of the second Autorotation driving device 18; Described slotting tool sliding floor 17 is in transmission connection in the second sliding driving device 19 by planar linkage mechanism; Described planar linkage mechanism comprises the eccentric wheel 22 being rotationally connected with frame 1 by horizontal rotating shaft single-degree-of-freedom and the connecting rod 23 be connected between eccentric wheel 22 and slotting tool sliding floor 17; Described horizontal rotating shaft 23 is in transmission connection in the power output shaft of the second sliding driving device 19; Pinion cutter 8 is fixed on slotting tool axle 21, horizontal rotating shaft 23 can and the power output shaft of the second sliding driving device 19 between and can be wholely set between slotting tool axle 21 and the power output shaft of the second Autorotation driving device 18, also be in transmission connection by shaft coupling or other gear trains, all the purpose of this utility model can be realized, eccentric wheel 22, between connecting rod and slotting tool sliding floor 17, be connected to form planar crank and slidermechanism, eccentric wheel 22 rotational band active slotting-tool sliding floor 17, in the to-and-fro movement of vertical direction high speed, is suitable for demonstrating Gear Shaping.
In the present embodiment, described 3rd driven unit comprise vertical single-degree-of-freedom be slidably connected to frame 1 hobboing cutter sliding floor 24, be fixed on hobboing cutter sliding floor 24 for driving the 3rd Autorotation driving device 25 of gear hobbing cutter 9 rotation and being fixed on the 3rd sliding driving device 26 for driving hobboing cutter sliding floor 24 vertically to slide of frame 1, described gear hobbing cutter 9 is rotationally connected with hobboing cutter sliding floor 24 by horizontally disposed cutter shaft 27 single-degree-of-freedom, described cutter shaft 27 is connected with the pto of the 3rd Autorotation driving device 25, described hobboing cutter sliding floor 24 is in transmission connection in the 3rd sliding driving device 26 by the second leading screw 28, hobboing cutter sliding floor 24 and the second leading screw 28 are connected to form screw pair, and frame 1 also comprises the installing plate 29 for installing hobboing cutter sliding floor 24, the 3rd sliding driving device 26 be installed in rectangular box 14, described installing plate 29 is erect and is arranged and be connected to rectangular box 14 along the direction horizontal slip perpendicular with worktable 7 glide direction, can according to the distance between workpiece 6 size adjustment gear hobbing cutter 9 and workpiece 6, demonstration is with cutting phenomenon, the back side of installing plate 29 is vertically fixed with floor, the horizontal erecting bed for installing the 3rd sliding driving device 26 is fixed with on front side of installing plate 29, hobboing cutter sliding floor 24 is slidably connected to installing plate 29 by the guidepost single-degree-of-freedom that two are vertically arranged, the vertical erecting bed for installing the 3rd Autorotation driving device 25 is fixed with on front side of hobboing cutter sliding floor 24, gear hobbing cutter 9 is fixed on cutter shaft 27, can be wholely set between the power output shaft of cutter shaft 27 and the 3rd Autorotation driving device 25 and between the power output shaft of the second leading screw 28 and the 3rd sliding driving device 26, also be in transmission connection by shaft coupling or other gear trains, all the purpose of this utility model can be realized, screw pair realizes the lock-bit of hobboing cutter sliding floor 24 by helicitic texture simultaneously.
In the present embodiment, described four-wheel drive assembly comprise vertical single-degree-of-freedom be slidably connected to frame 1 milling cutter sliding floor 30, be fixed on milling cutter sliding floor 30 for driving the 4th Autorotation driving device 31 of rest for gear milling tool 10 rotation and being fixed on the 4th sliding driving device 32 for driving milling cutter sliding floor 30 vertically to slide of frame 1, described rest for gear milling tool 10 is rotationally connected with milling cutter sliding floor 30 by horizontally disposed cutter spindle 33 single-degree-of-freedom, described cutter spindle 33 is connected with the pto of the 4th Autorotation driving device 31, described milling cutter sliding floor 30 is in transmission connection in the 4th sliding driving device 32 by the 3rd leading screw 34, and milling cutter sliding floor 30 and the 3rd leading screw 34 are connected to form screw pair, frame 1 also comprises the installation riser 35 for installing milling cutter sliding floor 30, the 4th sliding driving device 32 be installed in rectangular box 14, described installation riser 35 is erect and is arranged and be connected to rectangular box 14 along the direction horizontal slip perpendicular with worktable 7 glide direction, can according to the distance between workpiece 6 size adjustment rest for gear milling tool 10 and workpiece 6, demonstration is with cutting phenomenon, the back side of installing riser 35 is vertically fixed with floor, the horizontal erecting bed for installing the 4th sliding driving device 32 is fixed with on front side of installation riser 35, milling cutter sliding floor 30 is slidably connected to by the guidepost single-degree-of-freedom that two are vertically arranged and installs riser 35, the vertical erecting bed for installing the 4th Autorotation driving device 31 is fixed with on front side of milling cutter sliding floor 30, rest for gear milling tool 10 is fixed on cutter spindle 33, can be wholely set between the power output shaft of cutter spindle 33 and the 4th Autorotation driving device 31 and between the power output shaft of the 3rd leading screw 34 and the 4th sliding driving device 32, also be in transmission connection by shaft coupling or other gear trains, all the purpose of this utility model can be realized, screw pair realizes the lock-bit of milling cutter sliding floor 30 by helicitic texture simultaneously.
In the present embodiment, described frame 1 adopts acrylic board to make, and transparent being convenient to is observed, and quality is light, low price.
In the present embodiment, described first Autorotation driving device 12, first sliding driving device 13, second Autorotation driving device 18, second sliding driving device 19, the 3rd Autorotation driving device 25, the 3rd sliding driving device 26, the 4th Autorotation driving device 31, the 4th sliding driving device 32 are stepper motor, by Mechatronics control, switching and the full automatic working of job operation can be realized.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (10)

1. a mill teeth gear hobbing gear shaping one teaching aid, is characterized in that: comprise frame and be installed on localization part, gear shaping part, the gear hobbing part of frame and wash toothed portion; Described gear shaping part, gear hobbing part and mill teeth part along the left side of frame, right side and rear side arrange.
2. mill teeth gear hobbing gear shaping according to claim 1 one teaching aid, is characterized in that: described localization part comprise for fixation workpiece and can rotation and translation worktable and for driving the first driven unit of worktable rotation and translation; Described gear shaping part comprises pinion cutter and for driving pinion cutter rotation and along vertical reciprocating second driven unit; Described gear hobbing part comprises gear hobbing cutter and for driving gear hobbing cutter rotation and the 3rd driven unit along vertically movement; Described mill teeth part comprises rest for gear milling tool and for driving rest for gear milling tool rotation and the four-wheel drive assembly along vertically movement.
3. mill teeth gear hobbing gear shaping according to claim 2 one teaching aid, is characterized in that: described first driven unit comprise horizontal slip be connected to frame sliding panel, be fixed on sliding panel for driving the first Autorotation driving device of worktable rotation and being fixed on first sliding driving device for driving sliding panel horizontal slip of frame.
4. mill teeth gear hobbing gear shaping one teaching aid according to claim 3, is characterized in that: described worktable is rotationally connected with sliding panel by the workpiece turning axle single-degree-of-freedom vertically arranged; Described workpiece turning axle is connected with the pto of the first Autorotation driving device; Described sliding panel is connected to the first sliding driving device by the first lead screw transmission, and sliding panel and the first leading screw are connected to form screw pair.
5. mill teeth gear hobbing gear shaping according to claim 2 one teaching aid, is characterized in that: described second driven unit comprise vertically be slidably connected to frame slotting tool sliding floor, be fixed on slotting tool sliding floor for driving the second Autorotation driving device of pinion cutter rotation and being fixed on second sliding driving device for driving slotting tool sliding floor vertically to slide of frame.
6. mill teeth gear hobbing gear shaping one teaching aid according to claim 5, is characterized in that: described pinion cutter is rotationally connected with slotting tool sliding floor by the slotting tool axle single-degree-of-freedom vertically arranged; Described slotting tool axle is connected with the pto of the second Autorotation driving device; Described slotting tool sliding floor is in transmission connection in the second sliding driving device by planar linkage mechanism; Described planar linkage mechanism comprises the eccentric wheel being rotationally connected with frame by horizontal rotating shaft single-degree-of-freedom and the connecting rod be connected between eccentric wheel and slotting tool sliding floor; Described horizontal rotating shaft is in transmission connection in the power output shaft of the second sliding driving device.
7. mill teeth gear hobbing gear shaping according to claim 2 one teaching aid, is characterized in that: described 3rd driven unit comprise vertical single-degree-of-freedom be slidably connected to frame hobboing cutter sliding floor, be fixed on hobboing cutter sliding floor for driving the 3rd Autorotation driving device of gear hobbing cutter rotation and being fixed on the 3rd sliding driving device for driving hobboing cutter sliding floor vertically to slide of frame; Described gear hobbing cutter is rotationally connected with hobboing cutter sliding floor by horizontally disposed cutter shaft single-degree-of-freedom; Described cutter shaft is connected with the pto of the 3rd Autorotation driving device; Described hobboing cutter sliding floor is connected to the 3rd sliding driving device by the second lead screw transmission, and hobboing cutter sliding floor and the second leading screw are connected to form screw pair.
8. mill teeth gear hobbing gear shaping according to claim 2 one teaching aid, is characterized in that: described four-wheel drive assembly comprise vertical single-degree-of-freedom be slidably connected to frame milling cutter sliding floor, be fixed on milling cutter sliding floor for driving the 4th Autorotation driving device of rest for gear milling tool rotation and being fixed on the 4th sliding driving device for driving milling cutter sliding floor vertically to slide of frame; Described rest for gear milling tool is rotationally connected with milling cutter sliding floor by horizontally disposed cutter spindle single-degree-of-freedom; Described cutter spindle is connected with the pto of the 4th Autorotation driving device; Described milling cutter sliding floor is connected to the 4th sliding driving device by the 3rd lead screw transmission, and milling cutter sliding floor and the 3rd leading screw are connected to form screw pair.
9., according to claim 1-8 arbitrary described mill teeth gear hobbing gear shaping one teaching aid, it is characterized in that: described frame adopts acrylic board to make.
10. the mill teeth gear hobbing gear shaping one teaching aid according to claim 3 or 4, is characterized in that: described first Autorotation driving device, the first sliding driving device, the second Autorotation driving device, the second sliding driving device, the 3rd Autorotation driving device, the 3rd sliding driving device, the 4th Autorotation driving device, the 4th sliding driving device are stepper motor.
CN201520234688.XU 2015-04-17 2015-04-17 Mill teeth gear hobbing gear shaping one teaching aid Expired - Fee Related CN204632232U (en)

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Application Number Priority Date Filing Date Title
CN201520234688.XU CN204632232U (en) 2015-04-17 2015-04-17 Mill teeth gear hobbing gear shaping one teaching aid

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Application Number Priority Date Filing Date Title
CN201520234688.XU CN204632232U (en) 2015-04-17 2015-04-17 Mill teeth gear hobbing gear shaping one teaching aid

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104821128A (en) * 2015-04-17 2015-08-05 重庆交通大学 Multi-class gear machining test bench

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104821128A (en) * 2015-04-17 2015-08-05 重庆交通大学 Multi-class gear machining test bench

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150909

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CF01 Termination of patent right due to non-payment of annual fee