CN102519507B - Zero adjuster of rotary encoder and using method of zero adjuster - Google Patents
Zero adjuster of rotary encoder and using method of zero adjuster Download PDFInfo
- Publication number
- CN102519507B CN102519507B CN201110433087.8A CN201110433087A CN102519507B CN 102519507 B CN102519507 B CN 102519507B CN 201110433087 A CN201110433087 A CN 201110433087A CN 102519507 B CN102519507 B CN 102519507B
- Authority
- CN
- China
- Prior art keywords
- rotary encoder
- worm gear
- rotating shaft
- gauge stand
- worm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gear Transmission (AREA)
- Gears, Cams (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a zero adjuster of a rotary encoder and a using method of the zero adjuster. The zero adjuster comprises a digital quantity input module, a computer, a digital quantity output module, a stepping motor driver, a stepping motor, a worm gear, a worm, and a universal magnetic gauge stand assembly, wherein the digital quantity input module is used for connecting a rotary encoder of an automatic control mechanism and an electronic hand wheel. The worm gear, which is arranged on a hollow rotating shaft of the rotary encoder, is formed by mutual connection of a lower half of worm gear and an upper half of worm gear. The gauge stand of the universal magnetic gauge stand assembly is used to be fixed on the tested automatic control mechanism; the worm is movably sleeved in a shaft sleeve that is cooperatively arranged in an elastic hole chuck of the universal magnetic gauge stand assembly; the elastic hole chuck is fixedly connected with the gauge stand by a universal supporting arm as well as the position of the elastic hole chuck is suitable for enabling the front end of the worm to be engaged with the worm gear, so that the stepping motor is controlled to drive the worm to make rotation; and until the computer displays that the rotary encoder reaches a zero position, the user stops rotation of the electronic hand wheel and the stepping motor is stopped.
Description
Technical field
The present invention relates to the field that mechanical automation is controlled, particularly a kind of zero adjuster of rotary encoder of automatic controls and using method thereof.
Background technology
Generally the automatic controls with rotating shaft in use needs to utilize rotary encoder to detect the angle of rotating shaft, the a certain part movement of automatic controls that (is generally zero position) when rotating shaft angle is particular value is to a certain specific position, be mechanism kinematic while arriving this position, just in time export zero signal with the rotary encoder of rotating shaft coaxial rotating; The mounting means of the rotary encoder on automatic controls: the hollow rotating shaft of described rotary encoder is connected with the rotating shaft transmission of tested automatic controls; The housing of rotary encoder is located on the installing plate of described tested automatic controls by an elastic support.
In order to make the output signal of rotary encoder and the rotating shaft of automatic controls collaborative, with the automatic controls of rotating shaft, in work, need rotary encoder first to get back to zero point as last, as the starting point of working.
Because rotary encoder may be parked in circumferencial direction optional position in installation process, conventionally in order to make rotary encoder can rest in zero-bit, what generally need break encoder rotating shaft and mechanism rotating shaft is connected that (scrambler rotating shaft is rotatable, and mechanism's rotating shaft is motionless), the rotating shaft of hand-turning scrambler is until output zero signal, owing to needing the rotating shaft by the hollow rotating shaft of described rotary encoder and tested automatic controls to be fixedly linked simultaneously, so wayward its precision.That is: traditional manual setting method be difficult to scrambler rotating shaft fast, accurately, zero dead stop reliably.
Summary of the invention
The technical problem to be solved in the present invention is to provide zero adjuster and the using method thereof that installation and removal are easy, adjust the rotary encoder that precision is higher.
For solving the problems of the technologies described above, the zero adjuster that the invention provides a kind of rotary encoder, it comprises: for connecting digital quantity input module, the computing machine being connected with this digital quantity input module, the digital output module being connected with the control signal output terminal of this computing machine, the stepper motor driver being connected with this digital output module, the stepper motor being connected with this stepper motor driver, worm gear, worm screw and the universal magnetic gauge stand assembly of signal output part of the rotary encoder of an automatic controls.
Worm gear is located at the hollow rotating shaft of described rotary encoder for fixed cover, and this worm gear is connected to each other and is formed by upper and lower half worm gear of symmetry.
The gauge stand of described universal magnetic gauge stand assembly is used for being fixed on described tested automatic controls, and described worm screw is movably set in an axle sleeve, and the leading portion portion of this axle sleeve tightly fits in the springhole chuck of described universal magnetic gauge stand assembly; Springhole chuck is fixedly connected with described gauge stand by Universal support arm; The position of described springhole chuck is suitable for making the front end of described worm screw to be meshed with worm gear.
Described springhole chuck extends in the back segment portion of described axle sleeve, and the diameter of this back segment portion is greater than the diameter of described leading portion portion.
In order to make worm screw described above that radial and axial play not occur in axle sleeve, on worm screw and in the front end outside of described springhole chuck, be provided with the first Limit Bearing, on described worm screw and there is the limited step of an annular in the front side of described the first Limit Bearing, the external diameter of this limited step is greater than the internal diameter of the inner ring of the first Limit Bearing, and is less than the internal diameter of the outer ring of the first Limit Bearing; Before and after on worm screw in the back segment portion of described axle sleeve, be provided with the first back-up ring and the second Limit Bearing; On described axle sleeve and in the rear side of the second Limit Bearing, be provided with successively the second back-up ring and set nut.
During set nut locking, the inner ring of the first Limit Bearing and described limited step are adjacent to, and the front end face of the outer ring of the first Limit Bearing and described springhole chuck is adjacent to; The connecting portion of the front and rear sections portion of the leading flank of the first back-up ring and described axle sleeve is adjacent to, and the inside and outside circle of the second Limit Bearing is adjacent to described the second, first back-up ring respectively.
The rear end of described worm screw is in transmission connection by a shaft coupling and a stepper motor, and stepper motor is fixed on described axle sleeve;
During work, computing machine obtains the output signal of electronic hand wheel by described digital quantity input module, and according to the rotation direction of this signal controling stepping motor, and by driving worm screw to drive worm gear to rotate, and then driving described hollow rotating shaft, simultaneous computer reads the output of described rotary encoder by described digital quantity input module and shows whether this rotary encoder arrives zero-bit; When this rotary encoder arrives zero-bit, user's electronic hand wheel that stops operating, computer-controlled stepper motor stops.
The using method of the zero adjuster of above-mentioned rotary encoder, comprises the following steps:
(a), by unclamping for connecting the holding screw of the rotating shaft of tested automatic controls on the hollow rotating shaft of rotary encoder, and upper and lower half worm wheel symmetrical wringing fit is located on described hollow rotating shaft;
(b), the gauge stand of described universal magnetic gauge stand assembly is fixed on described tested automatic controls, and regulate the orientation of Universal support arm, make the described springhole chuck of this Universal support arm end adjacent with worm gear, further finely tune this Universal support arm and the front end of described worm screw and worm gear are engaged with each other;
(c), the signal output part of described rotary encoder is connected with described digital quantity input module;
(d), computing machine reads output the demonstration of described rotary encoder in real time by described digital quantity input module; When showing this rotary encoder not in zero-bit, user rotates electronic hand wheel, computing machine obtains the output signal of electronic hand wheel by described digital quantity input module, and according to the rotation direction of this signal controling stepping motor, and then drive described worm screw to rotate towards respective direction, until this rotary encoder of Computer display is while arriving zero-bit, user's electronic hand wheel that stops operating, computer-controlled stepper motor stops;
(e), tighten the holding screw on described hollow rotating shaft, to reconnect the rotating shaft of fixing this hollow rotating shaft and tested automatic controls; Then remove successively described universal magnetic gauge stand assembly and worm gear, and disconnect the connecting line of described digital quantity input module and rotary encoder.
Tool of the present invention has the following advantages:
1, adjusting gear of the present invention, adopt worm-and-wheel gear to adjust rotary encoder to zero point the fixing hollow rotating shaft of rotary encoder, because the stability of worm-and-wheel gear is higher, therefore be suitable for scrambler rotating shaft fast, accurately, zero dead stop reliably so that be connected and fixed described hollow rotating shaft and rotating shaft.Rotary encoder for different size only need provide supporting with it worm gear to work according to its hollow rotating shaft external diameter, and can drive described worm gearing by stepper motor in adjustment process, and versatility is stronger;
2, adjusting gear of the present invention, has utilized endless screw transmission agent stable drive, advantage that precision is high, makes adjustment process precision high and be easy to control;
3, each modular construction of adjusting gear of the present invention is compact, and using easy-disassembling-assembling universal magnetic gauge stand assembly as worm position and gesture correcting member make this device simple installation, convenient disassembly.
4, adopt sense of rotation and the anglec of rotation of electronic hand wheel (that is: Manual pulse generator) control step motor, control conveniently, zero-bit regulated efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the zero adjuster of rotary encoder of the present invention;
Fig. 2 is the B-B sectional view of Fig. 1, is specifically related to the assembly structure schematic diagram of worm gear, worm screw;
Fig. 3 is the worm gear front view the present invention relates to;
Fig. 4 is the A-A sectional view of Fig. 1, is specifically related to the assembly structure schematic diagram of rotary encoder;
Fig. 5 is the C-C sectional view of Fig. 3;
Fig. 6 is the circuit block diagram of the zero adjuster of rotary encoder of the present invention.
Embodiment
In order to make, content of the present invention is easier to be understood, and according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below:
The mounting means of the rotary encoder on automatic controls: the hollow rotating shaft 4-1 of described rotary encoder is connected with rotating shaft 1 transmission of tested automatic controls; The housing 4-3 of rotary encoder 4 is located on the installing plate 2 of described tested automatic controls by an elastic support 4-2.
As Fig. 1-5, the zero adjuster of rotary encoder comprises: for connecting the signal output part of rotary encoder 4 and the digital quantity input module of the signal output part of an electronic hand wheel, the computing machine being connected with this digital quantity input module, the digital output module being connected with the control signal output terminal of this computing machine, the stepper motor driver being connected with this digital output module, the stepper motor being connected with this stepper motor driver, worm gear 5, worm screw 6 and the universal magnetic gauge stand assembly 11 of an automatic controls.
The gauge stand 11-1 of described universal magnetic gauge stand assembly 11 is used for being fixed on described tested automatic controls, and described worm screw 6 is movably set in an axle sleeve 7, and the leading portion portion of this axle sleeve 7 tightly fits in the springhole chuck 11-8 of described universal magnetic gauge stand assembly 11; Springhole chuck 11-8 is fixedly connected with described gauge stand 11-1 by Universal support arm 11-3; The position of described springhole chuck 11-8 is suitable for making the front end 6-1 of described worm screw 6 to be meshed with worm gear 5.
Described springhole chuck 11-8 extends in the back segment portion of described axle sleeve 7, and the diameter of this back segment portion is greater than the diameter of described leading portion portion.
On worm screw 6 and in the front end outside of described springhole chuck 11-8, be provided with the first Limit Bearing 12, on described worm screw 6 and there is the limited step 6-2 of an annular in the front side of described the first Limit Bearing 12, the external diameter of this limited step 6-2 is greater than the internal diameter of the inner ring of the first Limit Bearing 12, and is less than the internal diameter of the outer ring of the first Limit Bearing 12.
Before and after on worm screw 6 in the back segment portion of described axle sleeve 7, be provided with the first back-up ring 8-1 and the second Limit Bearing 8; On described axle sleeve 7 and in the rear side of the second Limit Bearing 8, be provided with successively the second back-up ring 8-2 and set nut 10.
During set nut 10 locking, the inner ring of the first Limit Bearing 12 and described limited step 6-2 are adjacent to, and the front end face of the outer ring of the first Limit Bearing 12 and described springhole chuck 11-8 is adjacent to; The connecting portion 7-1 of the front and rear sections portion of the leading flank of the first back-up ring 8-1 and described axle sleeve 7 is adjacent to, and the inside and outside circle of the second Limit Bearing 8 is adjacent to described the second, first back-up ring 8-2,8-1 respectively.
The rear end of described worm screw 6 is in transmission connection by a shaft coupling 9 and a stepper motor 3, and stepper motor 3 is fixed on described axle sleeve 7.
During work, computing machine obtains the output signal of electronic hand wheel by described digital quantity input module, and according to the rotation direction of this signal controling stepping motor 3, and by driving worm screw 6 to drive worm gear 5 rotations, and then drive described hollow rotating shaft 4-1, simultaneous computer to read the output of described rotary encoder 4 by described digital quantity input module and show whether this rotary encoder 4 arrives zero-bit; When this rotary encoder 4 arrives zero-bit, user's electronic hand wheel that stops operating, computer-controlled stepper motor 3 stops.
During concrete enforcement, upper and lower half worm gear 5-1,5-2 are provided with the boss being mutually symmetrical, and this boss is provided with pair of bolts hole, so that upper and lower half worm gear 5-1,5-2 are connected and fixed by pair of bolts 5-3.In other embodiments, upper and lower half worm gear 5-1,5-2 are suitable for being connected or being fixedly connected with by fixture by magnetic each other.
The using method of the zero adjuster of the rotary encoder in above-described embodiment 1, comprising:
By unclamping for connecting the holding screw 4-4 of the rotating shaft 1 of tested automatic controls on the hollow rotating shaft 4-1 of rotary encoder 4, and it is upper that the symmetrical wringing fit of upper and lower half worm gear 5-1,5-2 is located to described hollow rotating shaft 4-1, make described hollow rotating shaft 4-1 can with described worm gear 5 synchronous rotaries.
Tighten knob 11-9, described axle sleeve 7 is tightly fitted in the springhole chuck 11-8 of described universal magnetic gauge stand assembly 11; Turning handle 11-2, to " ON ", is fixed on described tested automatic controls the gauge stand 11-1 of universal magnetic gauge stand assembly 11;
Regulate the orientation of the Universal support arm 11-3 of magnetic stand assembly 11, make the described springhole chuck 11-8 of this Universal support arm 11-3 end adjacent with worm gear 5, further finely tune this Universal support arm 11-3 and the front end 6-1 of described worm screw 6 and worm gear 5 are engaged with each other;
The signal output part of described rotary encoder 4 is connected with described digital quantity input module;
Computing machine reads output the demonstration of described rotary encoder 4 in real time by described digital quantity input module; When showing this rotary encoder 4 not in zero-bit, user rotates electronic hand wheel, computing machine obtains the output signal of electronic hand wheel by described digital quantity input module, and according to the rotation direction of this signal controling stepping motor 3, and then drive described worm screw 6 to rotate towards respective direction, until this rotary encoder of Computer display 4 is while arriving zero-bit, user's electronic hand wheel that stops operating, computer-controlled stepper motor 3 stops;
Tighten the holding screw 4-4 on described hollow rotating shaft 4-1, to reconnect the rotating shaft 1 of fixing this hollow rotating shaft 4-1 and tested automatic controls; Then remove successively described universal magnetic gauge stand assembly 11 and worm gear 5, and disconnect the connecting line of described digital quantity input module and rotary encoder 4.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation that spirit of the present invention extended out or change still among protection scope of the present invention.
Claims (2)
1. a zero adjuster for rotary encoder, is characterized in that comprising: for connecting the signal output part of rotary encoder (4) and the digital quantity input module of the signal output part of an electronic hand wheel, the computing machine being connected with this digital quantity input module, the digital output module being connected with the control signal output terminal of this computing machine, the stepper motor driver being connected with this digital output module, the stepper motor being connected with this stepper motor driver, worm gear (5), worm screw (6) and the universal magnetic gauge stand assembly (11) of a tested automatic controls;
Worm gear (5) is located at the hollow rotating shaft (4-1) of described rotary encoder (4) for fixed cover, by upper and lower half worm gear (5-1,5-2) of symmetry, be connected to each other forms this worm gear (5);
The gauge stand (11-1) of described universal magnetic gauge stand assembly (11) is for being fixed on described tested automatic controls, described worm screw (6) is movably set in an axle sleeve (7), and the leading portion portion of this axle sleeve (7) tightly fits in the springhole chuck (11-8) of described universal magnetic gauge stand assembly (11); Springhole chuck (11-8) is fixedly connected with described gauge stand (11-1) by Universal support arm (11-3); The position of described springhole chuck (11-8) is suitable for making the front end (6-1) of described worm screw (6) to be meshed with worm gear (5);
Described springhole chuck (11-8) extends in the back segment portion of described axle sleeve (7), and the diameter of this back segment portion is greater than the diameter of described leading portion portion;
Worm screw (6), above and in the front end outside of described springhole chuck (11-8) be provided with the first Limit Bearing (12), described worm screw (6), go up and have in the front side of described the first Limit Bearing (12) limited step (6-2) of an annular, the external diameter of this limited step (6-2) is greater than the internal diameter of the inner ring of the first Limit Bearing (12), and is less than the internal diameter of the outer ring of the first Limit Bearing (12);
The upper front and back of worm screw (6) in the back segment portion of described axle sleeve (7) are provided with the first back-up ring (8-1) and the second Limit Bearing (8); Upper and be provided with successively the second back-up ring (8-2) and set nut (10) in the rear side of the second Limit Bearing (8) at described axle sleeve (7);
During set nut (10) locking, the inner ring of the first Limit Bearing (12) and described limited step (6-2) are adjacent to, and the front end face of the outer ring of the first Limit Bearing (12) and described springhole chuck (11-8) is adjacent to; The connecting portion (7-1) of the front and rear sections portion of the leading flank of the first back-up ring (8-1) and described axle sleeve (7) is adjacent to, and the inside and outside circle of the second Limit Bearing (8) is adjacent to described the second, first back-up ring (8-2,8-1) respectively;
The rear end of described worm screw (6) is in transmission connection by a shaft coupling (9) and a stepper motor (3), and stepper motor (3) is fixed on described axle sleeve (7);
During work, computing machine obtains the output signal of electronic hand wheel by described digital quantity input module, and according to the rotation direction of this signal controling stepping motor (3), and by driving worm screw (6) to drive worm gear (5) rotation, and then driving described hollow rotating shaft (4-1), simultaneous computer reads the output of described rotary encoder (4) by described digital quantity input module and shows whether this rotary encoder (4) arrives zero-bit; When this rotary encoder (4) arrives zero-bit, user's electronic hand wheel that stops operating, computer-controlled stepper motor (3) stops.
2. the using method of the zero adjuster of the rotary encoder described in the claims 1, is characterized in that comprising the following steps:
(a), by unclamping for connecting the holding screw (4-4) of the rotating shaft (1) of tested automatic controls on the hollow rotating shaft of rotary encoder (4) (4-1), and the symmetrical wringing fit of upper and lower half worm gear (5-1,5-2) is located on described hollow rotating shaft (4-1);
(b), the gauge stand (11-1) of described universal magnetic gauge stand assembly (11) is fixed on described tested automatic controls, and regulate the orientation of Universal support arm (11-3), make the described springhole chuck (11-8) of this Universal support arm (11-3) end adjacent with worm gear (5), further finely tune this Universal support arm (11-3) and the front end (6-1) of described worm screw (6) and worm gear (5) are engaged with each other;
(c), the signal output part of described rotary encoder (4) is connected with described digital quantity input module;
(d), computing machine reads output the demonstration of described rotary encoder (4) in real time by described digital quantity input module; When showing this rotary encoder (4) not in zero-bit, user rotates electronic hand wheel, computing machine obtains the output signal of electronic hand wheel by described digital quantity input module, and according to the rotation direction of this signal controling stepping motor (3), and then drive described worm screw (6) to rotate towards respective direction, until this rotary encoder of Computer display (4) is while arriving zero-bit, user's electronic hand wheel that stops operating, computer-controlled stepper motor (3) stops;
(e), tighten the holding screw (4-4) on described hollow rotating shaft (4-1), to reconnect the rotating shaft (1) of fixing this hollow rotating shaft (4-1) and tested automatic controls; Then remove successively described universal magnetic gauge stand assembly (11) and worm gear (5), and disconnect the connecting line of described digital quantity input module and rotary encoder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110433087.8A CN102519507B (en) | 2011-12-21 | 2011-12-21 | Zero adjuster of rotary encoder and using method of zero adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110433087.8A CN102519507B (en) | 2011-12-21 | 2011-12-21 | Zero adjuster of rotary encoder and using method of zero adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519507A CN102519507A (en) | 2012-06-27 |
| CN102519507B true CN102519507B (en) | 2014-02-26 |
Family
ID=46290508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110433087.8A Active CN102519507B (en) | 2011-12-21 | 2011-12-21 | Zero adjuster of rotary encoder and using method of zero adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102519507B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103015B (en) * | 2019-04-28 | 2020-06-19 | 西安交通大学 | Alignment device for aligning zero position of valve body of multi-path sample injection valve with zero position of grating code disc and use method of alignment device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673118A (en) * | 2009-09-24 | 2010-03-17 | 同济大学 | Combined type transmission variable-angle micrometric displacement regulation device |
| CN101900580A (en) * | 2009-12-11 | 2010-12-01 | 扬州市海力精密机械制造有限公司 | Encoder zero-crossing detecting device and detecting method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100677824B1 (en) * | 2006-04-19 | 2007-02-02 | (주)성헌 | Head with multi-shaft for machine tools |
-
2011
- 2011-12-21 CN CN201110433087.8A patent/CN102519507B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673118A (en) * | 2009-09-24 | 2010-03-17 | 同济大学 | Combined type transmission variable-angle micrometric displacement regulation device |
| CN101900580A (en) * | 2009-12-11 | 2010-12-01 | 扬州市海力精密机械制造有限公司 | Encoder zero-crossing detecting device and detecting method |
Non-Patent Citations (2)
| Title |
|---|
| 张思彬，等.NUM数控系统编码器常规零位校正方法.《设备管理与维修》.2011,第60页. * |
| 徐洲,等.增量式轴角编码器的电子细分及零位处理.《光子学报》.2002,第31卷(第12期),第1497-1499页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102519507A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102853852B (en) | Zero adjustment device for rotary encoders and application method thereof | |
| CN106505810B (en) | Permanent magnet motor assembling device | |
| CN105522171B (en) | Portable numerical control flange processing device | |
| CN102519507B (en) | Zero adjuster of rotary encoder and using method of zero adjuster | |
| CN102519506B (en) | Encoder installation zero position automatic regulating device and using method thereof | |
| CN105571776A (en) | Electric-manual torque wrench verification platform mechanism | |
| CN102519508B (en) | Adjusting device for position of work starting point of rotary encoder and working method of adjusting device | |
| CN211503999U (en) | Roundness measuring instrument self-centering device and high-speed roundness measuring instrument | |
| CN202192370U (en) | Hollow screw type axial movement device of friction-stir spot welding machine tool | |
| CN203804767U (en) | Manual and automatic integrated vertical shaft of ultra-hard cutter grinding machine | |
| CN110307974B (en) | Detection equipment for computer heat dissipation motor spindle | |
| CN204353978U (en) | Digital control vertical internal and external grinding machine work table rotation transmission mechanism | |
| CN205571413U (en) | Portable numerical control method is processingequipment even | |
| CN201881238U (en) | Indexable face mechanism for crystal blanks | |
| CN202041375U (en) | Rotary life test jig | |
| CN211202766U (en) | Speed reducer | |
| CN203132830U (en) | Hand-held probe lead bending test apparatus | |
| CN208557334U (en) | One kind being applied to compressor meter probe installation and debugging combination tool | |
| CN200976241Y (en) | Novel print plate cylinder registration adjustment teaching apparatus | |
| CN202915935U (en) | Rotary encoder zero-adjustment device | |
| CN202006324U (en) | Rotating polar coordinate interpolation device for linear cutting | |
| CN204450085U (en) | The rotary index table used in Big Diameter Flange production process | |
| CN203202376U (en) | Planetary gear transmission hand-operated valve device with small tooth difference | |
| CN208440731U (en) | Furnace tube rotation drive device | |
| CN220547870U (en) | Nut tightening machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180205 Address after: 213032 Star Road, Star Road, Star Village, Hengshan Bridge Town, Wujin District, Changzhou, Jiangsu Province, No. 6 Patentee after: Changzhou Maite Motor Co. Ltd. Address before: 213011 No. 299 South Tongjiang Road, Tianning District, Jiangsu, Changzhou Patentee before: Changzhou Polytechnic College |
|
| TR01 | Transfer of patent right |