CN204596309U - The teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument - Google Patents
The teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument Download PDFInfo
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- CN204596309U CN204596309U CN201520206780.5U CN201520206780U CN204596309U CN 204596309 U CN204596309 U CN 204596309U CN 201520206780 U CN201520206780 U CN 201520206780U CN 204596309 U CN204596309 U CN 204596309U
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Abstract
The utility model discloses the teaching of a kind of profile of plate cam designed teaching and kinetic characteristic measuring instrument, at least comprise pedestal 1, tested cam installation shaft 29, rotating disk 2, direct acting guide rod measuring staff 5, swing measuring staff 8, precise displacement sensor 3, precision corner sensor 32, drive motor 15 and observing and controlling display system, by the funtcional relationship that the data variation of precise displacement sensor and precision corner sensor is divided with the data variation of shaft rotary corner sensor respectively, and real-time rendering goes out the data variation curve of precise displacement sensor and shaft rotary corner sensor, the data variation curve of precision corner sensor and shaft rotary corner sensor, that is: the speed that changes with cam work angle of the driven member that contacts of teaching cam contour and acceleration characteristic curve.The utility model can by the reversion of rotating disk, and adopt high-precision sensor to realize the measurement of element to be measured, can realize reversal process profile of plate cam design concept demonstration teaching, and real-time rendering goes out speed and acceleration characteristic curve that the driven member that contacts with teaching cam contour changes with cam work angle.
Description
Technical field
The utility model relates to the teaching of a kind of profile of plate cam designed teaching and kinetic characteristic measuring instrument, is mainly used in and measures to the demonstration teaching in the Design of Cam Profiles theory teaching processes such as cartridge shape translation cam, eccentric disc shaped translation cam, swing cam and kinetic characteristic thereof in mechanical principle course teaching process.
Background technology
Disc cam has played vital role in the plant equipment in a lot of field, the design of cam contour is the prerequisite meeting plant equipment requirement, mechanical principle course teaching and Machine Design slip-stick artist incubation in, cam design is important knowledge link, all the time, reversal process Design of Cam Profiles principle be also be teaching in a difficult point.
In Teaching of Courses Concerning Mechanical Engineering abroad, except classroom instruction, adopt such as equipment for teaching, the teaching means such as mechanical principle model, improving the quality of teaching is a very important ring, and the development of the equipment for teaching of China's mechanical courses relatively backwardness, major part knowledge is only present in theoretic or can only carries out flash demo by three-dimensional software, then understood by the imagination of student oneself and accept mechanical professional knowledge, such form of teaching, not only cannot mention the learning interest of student, and zoomed out student and these knowwhies, distance between mechanical mechanism design concept involved by specialized courses.In order to improve the classroom teaching effect of reversal process design cam contour in mechanical principle, simultaneously also in order to allow the design process of learner's profound understanding cam reversal process, the teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument can to generative processes of reversing to heart direct acting and offset cam profile, and swing cam profile reversion generative process carries out teaching demonstration, while carrying out Design of Cam Profiles teaching, by corresponding sensing testing system level computer control system, carry out accordingly by the contour curve of teaching cam, displacement curve, the display of speed characteristic curve and acceleration characteristic curve, allow learner when learning, fast direct is wielded and is held cam reversal process design concept.
Find through patent retrieval: the China Patent No. that Mao Guoyong etc. propose: ZL201010168065.9, name is called " avoiding the method for surfaces of disc cams from generating gear marks ", does not relate to the teaching of reversal process Design of Cam Profiles principle demonstration; The China Patent No. that Huang Wensheng etc. propose: ZL 201010298489.7, name is called " disc cam being carried out to the method for precise boundary measurement and accurately processing ", what this patent emphasis was set forth is the numerical-control processing method of disc cam and adopts the method measuring discrete point to measure cam contour, only relate to the profile measurement of disc cam, also do not relate to cam design demonstration teaching and reversal process principle of work.Through literature query, also do not have corresponding teaching instruments used for education to demonstrate the design process of cam reversal process at present, the measuring instrument etc. measuring camming movement characteristic in real time does not all occur that the document of being correlated with is delivered.
Utility model content
In order to solve the problem, it is simple that the technical problems to be solved in the utility model is to provide a kind of structure, facilitate the portable Design of Cam Profiles principle demonstration instrument meeting again reversal process Design of Cam Profiles principle in mechanical principle course teaching, while carrying out Design of Cam Profiles teaching, export by teaching cam profile curve in real time by TT&C system, displacement curve, speed and acceleration characteristic curve, and can be used for carrying out profile of plate cam dimensional measurement, meet the design theory teaching demand of the employing reversal process cam design principle in mechanical principle course teaching process, simultaneously can the profile complex geometric shapes of precision measurement dish type, and draw out the kinetic characteristic curve of cam, fill up and adopted reversal process to carry out the instruments used for education of Design of Cam Profiles teaching demonstration Teaching instrument and the blank of camming movement feature measurement, mechanical principle course teaching in and be with a wide range of applications in profile of plate cam precision measurement.
The utility model realizes particular by following technical scheme:
A kind of profile of plate cam designed teaching teaching and kinetic characteristic measuring instrument, at least comprise pedestal, tested cam installation shaft, rotating disk, direct acting guide rod measuring staff, swing measuring staff, precise displacement sensor, precision corner sensor, drive motor and observing and controlling display system
Described rotating disk installation shaft and tested cam installation shaft are arranged on pedestal respectively by left base bearing and Right socle bearing, the motor output shaft of described drive motor is connected with rotating disk installation shaft by motor axle key, described rotating disk is installed bearing by rotating disk and is arranged in rotating disk installation shaft, described rotating disk and rotating disk are installed on bearing and are respectively equipped with the first corresponding and identical connecting hole, connect bearing pin and insert described first connecting hole; Tested cam is arranged in tested cam installation shaft, and described tested cam installation shaft is installed the axle positioning key of axial location, described shaft coupling is connected with rotating disk installation shaft by connecting bolt of coupling, and described shaft coupling is located by axle positioning key;
Described rotating disk fixes direct acting guide rod measuring staff mounting rail by slideway gib screw, described direct acting guide rod measuring staff mounting rail is provided with horizontal concrete chute, described horizontal concrete chute fixes vertical chute, direct acting guide rod measuring staff is installed in described vertical chute, described horizontal concrete chute can horizontally slip and regulate the position of direct acting guide rod measuring staff mounting rail, described direct acting guide rod measuring staff can move up and down in vertical chute, described direct acting guide rod measuring staff is arranged in vertical chute by direct acting guide rod measuring staff back-moving spring, and described direct acting guide rod measuring staff and tested cam contact, precise displacement sensor coordinates with direct acting guide rod measuring staff to be installed and records direct acting guide rod measuring staff displacement,
Described swing measuring staff is arranged on swinging connecting rod, described swinging connecting rod is fixed on rotating disk by connecting link screw, swing measuring staff around the swing of fork connecting link and by back-moving spring and tested cam contact, precision corner sensor coordinates swing measuring staff install and measure the pendulum angle swinging measuring staff, and described shaft rotary corner sensor coordinates the installation of rotating disk installation shaft and measures the rotational angle of rotating disk installation shaft;
Described observing and controlling display system connects precise displacement sensor, precision corner sensor and shaft rotary corner sensor respectively.
Preferably, through described left base bearing and the end face of rotating disk and the position of correspondence is respectively equipped with the second connecting hole, connect driving lever and insert described second connecting hole.
Preferably, be respectively equipped with the 3rd connecting hole through described Right socle bearing and position corresponding to tested cam installation shaft, camshaft connecting pin inserts described 3rd connecting hole.
Preferably, described observing and controlling display system obtains precise displacement sensor, the data variation of precision corner sensor and shaft rotary corner sensor, the funtcional relationship that the data variation obtaining precise displacement sensor and precision corner sensor is divided with the data variation of shaft rotary corner sensor respectively, and real-time rendering goes out the data variation curve of precise displacement sensor and shaft rotary corner sensor, the data variation curve of precision corner sensor and shaft rotary corner sensor, that is: the speed that changes with cam work angle of the driven member that contacts of teaching cam contour and acceleration characteristic curve.
The utility model produce beneficial effect be: the teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument structure simple, easy to use, measuring accuracy is high, highly versatile, can facilitate and directly perceived demonstration teaching be carried out to profile of plate cam design concept, meet the requirement of reversal process cam design theory teaching, by the relation between the contour curve of the various disc cam of precision measurement and operating angle, realize tested cam contour curve in the course of the work intuitively to measure and display, simultaneously can real-time analysis and show the family curve of tested cam, can be applied in the teaching of cam design teaching demonstration, also be with a wide range of applications in profile of plate cam Precision measurement simultaneously.
Accompanying drawing explanation
Fig. 1 is the front elevation of profile of plate cam designed teaching of the present utility model teaching and kinetic characteristic measuring instrument;
Fig. 2 is profile of plate cam designed teaching of the present utility model teaching and kinetic characteristic measuring instrument cut-open view;
Fig. 3 (a), (b) are the designed teaching teaching of the utility model profile of plate cam and kinetic characteristic measuring instrument TT&C system schematic diagram;
Fig. 4 is the designed teaching teaching of the utility model profile of plate cam and the tested cam profile curve of kinetic characteristic measuring instrument and family curve generator program process flow diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, shown in Fig. 2, a kind of profile of plate cam designed teaching teaching and kinetic characteristic measuring instrument, at least comprise pedestal 1, tested cam installation shaft 29, rotating disk 2, direct acting guide rod measuring staff 5, swing measuring staff 8, precise displacement sensor 3, precision corner sensor 32, drive motor 15 and observing and controlling display system, described rotating disk installation shaft 23 and tested cam installation shaft 29 are arranged on pedestal 1 respectively by left base bearing 16 and Right socle bearing 26, drive motor 15 is fixed on pedestal 1 by mounting screw 12 and joint flange 13, the motor output shaft of described drive motor 15 is connected with rotating disk installation shaft 23 by motor axle key 14, described rotating disk 2 is installed bearing 21 by rotating disk and is arranged in rotating disk installation shaft 23, described rotating disk 2 and rotating disk are installed on bearing 21 and are respectively equipped with the first corresponding and identical connecting hole, connect bearing pin 18 and insert described first connecting hole, tested cam 7 is arranged in tested cam installation shaft 29, described tested cam installation shaft 29 is installed the axle positioning key 25 of axial location, circlip 28 is provided with between axle positioning key 25 and Right socle bearing 26, described shaft coupling 31 is connected with rotating disk installation shaft 23 by connecting bolt of coupling 24, axle positioning key 25 can coordinate with shaft coupling and realizes locating, and described shaft coupling 31 is located by axle positioning key 25.
Rotating disk 2 fixes direct acting guide rod measuring staff mounting rail 20 by slideway gib screw 19, described direct acting guide rod measuring staff mounting rail 20 is provided with horizontal concrete chute 6, described horizontal concrete chute 6 fixes vertical chute 4, direct acting guide rod measuring staff 5 is installed in described vertical chute 4, described horizontal concrete chute 6 can horizontally slip and regulate the position of direct acting guide rod measuring staff mounting rail 20, described direct acting guide rod measuring staff 5 can move up and down in vertical chute 4, described direct acting guide rod measuring staff 5 is arranged in vertical chute 4 by direct acting guide rod measuring staff back-moving spring 22, and described direct acting guide rod measuring staff 5 contacts with tested cam 7, precise displacement sensor 3 coordinates with direct acting guide rod measuring staff 5 to be installed and records direct acting guide rod measuring staff 5 displacement.By regulating the position of direct acting guide rod measuring staff 5 in horizontal concrete chute 6 in the utility model, realize tested cam 7 to the heart or misalignment measurement and teaching.
Swinging measuring staff 8 is arranged on swinging connecting rod 10, described swinging connecting rod 10 is fixed on rotating disk 2 by connecting link screw 11, swing measuring staff 8 swing around fork connecting link 10 and contacted with tested cam 7 by back-moving spring 9, precision corner sensor 32 coordinates swing measuring staff 8 install and measure the pendulum angle swinging measuring staff 8, and described shaft rotary corner sensor 30 coordinates rotating disk installation shaft 23 to install and measures the rotational angle of rotating disk installation shaft 23.
In the utility model, observing and controlling display system connects precise displacement sensor 3 respectively, precision corner sensor 32 and shaft rotary corner sensor 30, observing and controlling display system obtains precise displacement sensor 3, the data variation of precision corner sensor 32 and shaft rotary corner sensor 30, the funtcional relationship that the data variation obtaining precise displacement sensor 3 and precision corner sensor 32 is divided with the data variation of shaft rotary corner sensor 30 respectively, and real-time rendering goes out the data variation curve of precise displacement sensor 3 and shaft rotary corner sensor 30, the data variation curve of precision corner sensor 32 and shaft rotary corner sensor 30, that is: the speed that changes with cam work angle of the driven member that contacts of teaching cam contour and acceleration characteristic curve.
Through described left base bearing 16 and the end face of rotating disk 2 and the position of correspondence is respectively equipped with the second connecting hole in the present embodiment, connect driving lever 17 and insert described second connecting hole; Position through described Right socle bearing 26 and tested cam installation shaft 29 correspondence is respectively equipped with the 3rd connecting hole, and camshaft connecting pin 27 inserts described 3rd connecting hole
As in Fig. 2, insert the first connecting hole in rotating disk 2 and rotating disk installation shaft 23 when connection bearing pin 18, connect the second connecting hole that driving lever 17 departs from rotating disk 2, namely realize rotating disk 2 with the rotation of rotating disk installation shaft 23 under motor 15 drives; When dial-out connects bearing pin 18, connection driving lever 17 is inserted in the hole of rotating disk 2, the fixing of rotating disk 2 and pedestal 1 can be realized, ensure that rotating disk 2 maintains static; Connect bearing pin 18 when dial-out and be connected driving lever 17, hand rotation rotating disk 2 can be realized.
Shaft coupling 31 slides through axle positioning key 25 to the right and locates, and the rotary motion of rotating disk installation shaft 23 is delivered to cam installation shaft 29, and shaft coupling 31 slides left and departs from the disengaging that axle positioning key 25 realizes the rotation of tested cam installation shaft 29.When shaft coupling 31 slides disengagement axle positioning key 25 to left end, camshaft connecting pin 27 realizes tested cam installation shaft 29 and is connected with pedestal 1, ensures that the tested cam 7 be arranged in cam installation shaft 29 maintains static; When taking off camshaft connecting pin 27, shaft coupling 31 being slided when coordinating with cam installation shaft positioning key 25 to the right, realizing the rotation of tested cam 7 under the driving of motor 15.
Fig. 3 is the teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument TT&C system schematic diagram, as shown in Fig. 3 (a), the input signal 33 of the precise displacement sensor at direct acting guide rod measuring staff 5 place and the input signal 40 of shaft rotary corner sensor, respectively by modulate circuit 34(39), A/D converter 35(38) carry out the conversion of simulating signal to digital signal, then be input to Measurement &control computer 36 and carry out mathematics manipulation and control treatment, the observing and controlling result of TT&C system is carried out exporting and showing 37.
As shown in Fig. 3 (b), swing the input signal 41 of the precision corner sensor at measuring staff 8 place and the input signal 40 of shaft rotary corner sensor, by modulate circuit 42(39), A/D converter 43(38) carry out the conversion of simulating signal to digital signal, then be input to Measurement &control computer 36 and carry out mathematics manipulation and control treatment, the observing and controlling result of TT&C system is carried out exporting and showing 37.
Be illustrated in figure 4 the teaching of profile of plate cam designed teaching and the tested cam profile curve of kinetic characteristic measuring instrument and family curve generator program process flow diagram, signal transacting is carried out by corresponding modulate circuit and A/D change-over circuit by sensing input signal precise displacement sensor, precision corner sensor, shaft rotary corner sensor recorded, then be input to Measurement &control computer and carry out mathematics manipulation, calculate cam elementary contour size and cam displacement characteristic, then draw out displacement profile curve and the displacement curve of tested cam; Then the placement property equation of tested cam is carried out whether single order can lead judgement, if can not can lead by single order, return and remeasure; Then first derivation computing is carried out to the placement property equation of tested cam, obtain the velocity characteristic equation of tested cam, and draw out its speed characteristic curve; Can then whether single order be led to judge its velocity characteristic equation? if can lead, then carry out first derivation, obtain its acceleration characteristic equation, and draw out its acceleration characteristic curve; If can not lead, then judge whether its velocity characteristic equation infinitely suddenlys change, if it is judge that this tested cam exists rigid shock, if not, then judge that this tested cam exists soft impulse, draw out its sudden change of acceleration curve equally.
Under motor drives, when teaching cam and pedestal affixed, when rotating disk is fixed by holding screw and cam installation shaft, rotating disk rotates under the driving of drive motor, in its rotation process, the measuring staff be installed on it contacts with cam contour and is subjected to displacement with cam contour or the change of corner, displacement transducer is used for measuring the direct acting displacement of direct acting guide rod measuring staff, a rotary angle transmitter is used for measuring the pendulum angle swinging measuring staff, another rotary angle transmitter measurement is fixed on cam installation shaft top rotary table relative to the counter-rotational rotational angle of teaching cam, by the postpositive disposal of TT&C system, can obtain along the funtcional relationship between the direct acting displacement and rotating disk corner of the direct acting guide rod measuring staff of profile of plate cam movement respectively, with the funtcional relationship between the pivot angle of the swing measuring staff of swing cam profile variations and rotating disk corner, rotating disk rotational response goes out the near angle of repose of cam contour, lift angle, far angle of repose, the operating angles such as backhaul angle, dish type translation cam profile can be analyzed thus with the funtcional relationship between its corner, swing cam pivot angle is with the funtcional relationship between cam angle.
By TT&C software, TT&C system is exported to the process of data, contour curve and displacement curve, speed characteristic curve and the acceleration characteristic curve of teaching cam can be demonstrated.By the reversion of rotating disk, and adopt high-precision sensor to realize the measurement of element to be measured, reversal process profile of plate cam design concept demonstration teaching can be realized, change the installation fixed form of cam and rotating disk, accurately can measure profile of plate cam, and real-time analysis can be carried out to the family curve of cam.This profile of plate cam designed teaching teaching and kinetic characteristic measuring instrument structure simple, easy to use, highly versatile, meet the design theory teaching demand of the employing reversal process cam design principle in mechanical principle course teaching process, simultaneously can the profile complex geometric shapes of precision measurement dish type, and draw out the kinetic characteristic curve of cam, fill up and adopted reversal process to carry out the instruments used for education of Design of Cam Profiles teaching demonstration Teaching instrument and the blank of camming movement feature measurement, mechanical principle course teaching in and be with a wide range of applications in profile of plate cam precision measurement.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. profile of plate cam designed teaching teaching and kinetic characteristic measuring instrument, it is characterized in that, at least comprise pedestal (1), tested cam installation shaft (29), rotating disk (2), direct acting guide rod measuring staff (5), swing measuring staff (8), precise displacement sensor (3), precision corner sensor (32), drive motor (15) and observing and controlling display system
Described rotating disk installation shaft (23) and tested cam installation shaft (29) are arranged on pedestal (1) respectively by left base bearing (16) and Right socle bearing (26), the motor output shaft of described drive motor (15) is connected with rotating disk installation shaft (23) by motor axle key (14), described rotating disk (2) is installed bearing (21) by rotating disk and is arranged in rotating disk installation shaft (23), described rotating disk (2) and rotating disk are installed on bearing (21) and are respectively equipped with the first corresponding and identical connecting hole, connect bearing pin (18) and insert described first connecting hole; Tested cam (7) is arranged on tested cam installation shaft (29), the upper axle positioning key (25) installing axial location of described tested cam installation shaft (29), described shaft coupling (31) is connected with rotating disk installation shaft (23) by connecting bolt of coupling (24), and described shaft coupling (31) is located by axle positioning key (25);
By fixing direct acting guide rod measuring staff mounting rail (20) of slideway gib screw (19) on described rotating disk (2), described direct acting guide rod measuring staff mounting rail (20) is provided with horizontal concrete chute (6), the upper fixing vertical chute (4) of described horizontal concrete chute (6), in described vertical chute (4), direct acting guide rod measuring staff (5) is installed, described horizontal concrete chute (6) can horizontally slip and regulate the position of direct acting guide rod measuring staff mounting rail (20), described direct acting guide rod measuring staff (5) can move up and down in vertical chute (4), described direct acting guide rod measuring staff (5) is arranged in vertical chute (4) by direct acting guide rod measuring staff back-moving spring (22), and described direct acting guide rod measuring staff (5) contacts with tested cam (7), precise displacement sensor (3) coordinates with direct acting guide rod measuring staff (5) to be installed and records direct acting guide rod measuring staff (5) displacement,
Described swing measuring staff (8) is arranged on swinging connecting rod (10), described swinging connecting rod (10) is fixed on rotating disk (2) by connecting link screw (11), swing measuring staff (8) swing around fork connecting link (10) and contacted with tested cam (7) by back-moving spring (9), precision corner sensor (32) coordinates the pendulum angle swinging measuring staff (8) installation and measurement swing measuring staff (8), and described shaft rotary corner sensor (30) coordinates rotating disk installation shaft (23) to install and the rotational angle of measurement rotating disk installation shaft (23);
Described observing and controlling display system connects precise displacement sensor (3), precision corner sensor (32) and shaft rotary corner sensor (30) respectively.
2. profile of plate cam designed teaching according to claim 1 teaching and kinetic characteristic measuring instrument, it is characterized in that, through described left base bearing (16) and rotating disk (2) end face and the position of correspondence is respectively equipped with the second connecting hole, connect driving lever (17) and insert described second connecting hole.
3. profile of plate cam designed teaching according to claim 1 teaching and kinetic characteristic measuring instrument, it is characterized in that, position through described Right socle bearing (26) and tested cam installation shaft (29) correspondence is respectively equipped with the 3rd connecting hole, and camshaft connecting pin (27) inserts described 3rd connecting hole.
4. profile of plate cam designed teaching according to claim 1 teaching and kinetic characteristic measuring instrument, it is characterized in that, described observing and controlling display system obtains precise displacement sensor (3), the data variation of precision corner sensor (32) and shaft rotary corner sensor (30), the funtcional relationship that the data variation obtaining precise displacement sensor (3) and precision corner sensor (32) is divided with the data variation of shaft rotary corner sensor (30) respectively, and real-time rendering goes out the data variation curve of precise displacement sensor (3) and shaft rotary corner sensor (30), the data variation curve of precision corner sensor (32) and shaft rotary corner sensor (30), that is: the speed that changes with cam work angle of the driven member that contacts of teaching cam contour and acceleration characteristic curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206780.5U CN204596309U (en) | 2015-04-08 | 2015-04-08 | The teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206780.5U CN204596309U (en) | 2015-04-08 | 2015-04-08 | The teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument |
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| Publication Number | Publication Date |
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| CN204596309U true CN204596309U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520206780.5U Withdrawn - After Issue CN204596309U (en) | 2015-04-08 | 2015-04-08 | The teaching of profile of plate cam designed teaching and kinetic characteristic measuring instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732866A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Disc cam profile design teaching demonstration and motion characteristic measuring instrument |
| JP2019015566A (en) * | 2017-07-05 | 2019-01-31 | 日本精工株式会社 | Tester for eccentric rotating component |
-
2015
- 2015-04-08 CN CN201520206780.5U patent/CN204596309U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732866A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Disc cam profile design teaching demonstration and motion characteristic measuring instrument |
| CN104732866B (en) * | 2015-04-08 | 2017-05-10 | 武汉科技大学 | Disc cam profile design teaching demonstration and motion characteristic measuring instrument |
| JP2019015566A (en) * | 2017-07-05 | 2019-01-31 | 日本精工株式会社 | Tester for eccentric rotating component |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20170510 |
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| AV01 | Patent right actively abandoned |