CN202704503U - Multifunctional turnover device - Google Patents
Multifunctional turnover device Download PDFInfo
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- CN202704503U CN202704503U CN 201220358491 CN201220358491U CN202704503U CN 202704503 U CN202704503 U CN 202704503U CN 201220358491 CN201220358491 CN 201220358491 CN 201220358491 U CN201220358491 U CN 201220358491U CN 202704503 U CN202704503 U CN 202704503U
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Abstract
The utility model relates to a multifunctional turnover device. The multifunctional turnover device comprises two parts which are symmetrically arranged at two sides of an assembly line. Each part comprises a main machine body, at least one fixture, at least one set of turnover mechanism which drives the fixture to turn over and a controller. The turnover mechanisms are fixed on the main machine bodies, the two symmetrically arranged fixtures clamp workpieces on the assembly line and the fixtures and / or the turnover mechanisms are connected with the controllers. A split-type structure is adopted in the multifunctional turnover device and the multifunctional turnover device has the advantages that the structure is simple, the device is convenient and safe to use, different fixtures can be chosen according to different workpiece types to complete clamping and turnover of different workpieces, and therefore the number of the turnover mechanisms on a mix production assembly line is reduced, the capital investment of equipment is saved, the length of the assembly line and the off line period of subassembly pieces are reduced and the commonality of the device is improved.
Description
Technical field
The utility model relates to a kind of turning device on conveyor line, workpiece to be processed overturn.
Background technology
At present, the assembly technology of Chinese large-sized engineering goods mostly is total assembling after first section dress, and parts section installs Cheng Houchang and need to carry out 180
.upset can always assemble.Particularly, for mixed runoff yield waterline, on mixed runoff yield waterline, the variety of product will cause needing many special overturn mechanisms to complete the upset of different sections piece installing, thereby make, conveyor line length increases, plant area increases, section's piece installing is rolled off the production line, and the cycle is long.
The utility model content
The utility model main purpose is to address the above problem and is not enough, provides a kind of simple in structure, highly versatile, Multifunction turning apparatus safe and convenient to use.
For achieving the above object, the technical solution of the utility model is:
A kind of Multifunction turning apparatus, comprise two parts that are symmetricly set on the conveyor line both sides, each part includes main body fuselage, at least one fixture, drive at least one group of switching mechanism and the controller of described fixture upset, described switching mechanism is fixed on described main body fuselage, relatively symmetrically arranged described fixture clamping is positioned at the workpiece on described conveyor line, and described fixture and/or described switching mechanism are connected with described controller.
Further, described main body fuselage comprises support, elevating bracket and base, described elevating bracket by lifting mechanism along the Z axis mobile link on described support, described support is automatically connected on described base along y-axis shift by the first travel mechanism, both sides at described conveyor line are arranged with guide rail in parallel, described base by the second travel mechanism along the X-axis mobile link on described guide rail, described switching mechanism is fixed on described elevating bracket, and described lifting mechanism, the first travel mechanism and the second travel mechanism are connected with described controller.
Further, described switching mechanism comprises a upset main shaft and the driver train for driving the upset main shaft to rotate, described fixture is arranged on described upset main shaft, and described upset main shaft rotarily drives described fixture rotation, and described driver train is connected with described controller.
Further, the detachable connection between described fixture and described upset main shaft.
Further, in described switching mechanism, also be provided with for automatically identifying the image identification system of the type of described workpiece, described image identification system is connected with described controller.
Further, on described elevating bracket, be provided with for clamping at least one clamper of described fixture, between described clamper and described elevating bracket, by kinematic mechanism is movable, be connected, described clamper drives described clamp movement described fixture is delivered to described upset main spindle's or breaks away from described upset main spindle's, and described kinematic mechanism is connected with described controller.
Content to sum up, a kind of Multifunction turning apparatus described in the utility model compared with prior art, has following advantage:
(1) adopt split-type structural, two parts are symmetricly set on the both sides of conveyor line, and two parts synchronization action utilizes two fixtures of symmetrical setting to clamp workpiece realization upset to be processed, and this apparatus structure is simple, safe and convenient to use.
(2) on the main body fuselage, a plurality of fixtures and switching mechanism can be set, the different fixture according to different workpiece type selecting, can complete gripping and the upset of different workpieces, thereby reduce the quantity of switching mechanism on mixed runoff yield waterline, save the input of equipment funds, shorten conveyor line length and the piece installing of shortening section is rolled off the production line the cycle, improved the commonality of this device.
(3) utilize image identification system and position transduser in this device, the distance between workpiece type, fixture and workpiece to be processed, fixture positioning precision etc. are accurately differentiated, guarantee gripping correct position and positioning precision.
The accompanying drawing explanation
Fig. 1 is the utility model integral structure schematic diagram;
Fig. 2 is the front elevation of the utility model turning device;
Fig. 3 is workflow diagram of the present utility model.
As shown in Figure 1 to Figure 3, conveyor line 1, turning device 2, fixture 3, switching mechanism 4, support 5, elevating bracket 6, base 7, guide rail 8, slide rail 9, control panel 10, slideway 11, upset main shaft 12, clamper 13, turning cylinder 14.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail:
Embodiment mono-:
As shown in Figure 1, a kind of Multifunction turning apparatus, adopt split-type structural, two parts are symmetrically arranged in the both sides of conveyor line 1 roll-over table position, workpiece to be processed (failing in figure to illustrate) moves on the conveyor line 1 between two parts, when workpiece is transported to the roll-over table position with conveyor line 1, synchronously drives two-part turning device 2, the gripping workpiece, realize the 180 degree upsets to workpiece.
As shown in Figure 2, the structure of two-part turning device 2 is identical, includes main body fuselage, fixture 3, drives switching mechanism 4 and controller that fixture 3 overturns.Wherein, controller adopts industrial computer, and the control panel 10 for the operating personal operation is set on the main body fuselage.
The main body fuselage comprises support 5, elevating bracket 6 and base 7, and control panel 10 is fixedly mounted on support 5, and in the both sides of conveyor line 1, parallel laid is provided with guide rail 8 respectively.Base 7 is connected on guide rail 8 by the second travel mechanism, is provided with on the lower surface of base 7 and coordinates mobile slide block (failing in figure to illustrate) with guide rail 8, and base 7 moves on X-direction along guide rail 8, to adjust the gripping position of fixture 3.Upper surface at base 7 is provided with the slide rail 9 extended along Y-axis, support 5 is connected on the slide rail 9 of base 7 by the first travel mechanism, lower surface at support 5 is provided with the slide block (failing in figure to illustrate) that coordinates movement with slide rail 9, support 5 moves on Y direction along base 7, the fixture 3 of both sides is relatively near when motion, the gripping of realization to workpiece, the fixture 3 of both sides away from when motion, can unclamp workpiece relatively.Be provided with the slideway 11 extended along Z-direction on support 5, elevating bracket 6 is by the lifting mechanism mobile link on the slideway 11 of support 5, and elevating bracket 6 moves up and down along slideway 11, to adjust the gripping position of fixture 3, realizes that the rising of workpiece is beneficial to upset simultaneously.
Lifting mechanism, the first travel mechanism and the second travel mechanism can adopt the motor gear rack gear, belt gear, hydraulic gear and pneumatic transmission mechanism etc., lifting mechanism, the first travel mechanism is connected with controller with the second travel mechanism, by unified each mechanism kinematic and the miles of relative movement controlled of controller, simultaneously, controller guarantees the lifting mechanism in two parts, the first travel mechanism and the second travel mechanism are synchronized with the movement, the displacement and the sense of displacement that guarantee two-part rising and X-axis and Y-axis are consistent, guarantee the upset dead in line of two antimeric switching mechanisms 4.
As shown in Figure 1, fixture 3 is at least one, switching mechanism 4 is at least one group, switching mechanism 4 is fixed on elevating bracket 6, also be provided with at least one clamper 13 for clamping fixture 3 on elevating bracket 6, in the present embodiment, be provided with two different types of fixtures 3, two clampers 13 and one group of switching mechanism 4 on each elevating bracket 6,3, two clampers 13 of each clamper 13 a kind of fixture of clamping are divided into the both sides of switching mechanism 4.Fixture 3 can adopt of the prior art any, as hydraulically extensible cylinder, sucker, handgrip etc.
As shown in Figure 2, in the present embodiment, switching mechanism 4 comprises a upset main shaft 12 and, for driving the driver train of upset main shaft 12 rotations, driver train can adopt motor to drive, and driver train is connected with controller.Fixture 3 is fixed on upset main shaft 12 when needs gripping workpiece, and motor drives 12 rotations of upset main shaft, drives fixture 3 rotations, thereby drives the workpiece turning of fixture 3 grippings.In this process, the upset main shaft 12 in the switching mechanism 4 of conveyor line 1 both sides will keep moving simultaneously, to guarantee upset main shaft 12 deads in line of both sides, thereby guarantees that gripping is firm, improves production efficiency and product quality.
Between upset main shaft 12 and fixture 3, the detachable structure of employing is connected, can adopt the fastener such as bolt that fixture 3 is fixedly connected with upset main shaft 12, can also adopt the structure of electromagnetism adhesive, so that realize automatically exchanging for fixture 3, be provided with electromagnet at upset main shaft 12 places, when fixture 3 arrives upset main shaft 12 position, start electromagnetic actuation fixture 3, thereby fixture 3 is fixedly connected with upset main shaft 12, after workpiece turning finishes, disconnect the power supply of electromagnet, upset main shaft 12 breaks away from fixture 3.
Between clamper 13 and elevating bracket 6, by kinematic mechanism is movable, be connected, in the present embodiment, clamper 13 is by being rotatably connected between turning cylinder 14 and elevating bracket 6, and turning cylinder 14 is driven and rotated by motor, and drive motor is connected with controller.As shown in Figure 2, when needs are used the fixture 3 gripping workpiece in left side, controller drives the drive motor running of the clamper 13 in left side, the clamper 13 in left side turns to level attitude under the drive of motor, now, the fixture 3 of clamper 13 clampings just in time is positioned at the position of upset main shaft 12, and clamper 13 is delivered to fixture 3 position of middle upset main shaft 12.After upset finishes, controller control clamper 13 is rotated down 90 degree and returns back to initial position, i.e. fixture 3 positions on right side in Fig. 2.
Be connected between clamper 13 and fixture 3 and can adopt electromagnetic adsorption type or adopt the hydraulic pressure gripping or adopt the modes such as fastener is fixedly connected with.In the present embodiment, for simplifying integral structure, handled easily, preferably adopt electromagnetic adsorption type, at clamper 13 places, electromagnet is set, when needs clamper 13 clamping fixture 3, to the electromagnet energising, after fixture 3 is fixed on upset main shaft 12, disconnect the power supply of clamper 13, clamper 13 and fixture 3 are broken away from, and fixture 3 rotates with the rotation of upset main shaft 12.
Be provided with image identification system in the switching mechanism 4 of both sides, image identification system is connected with controller, image identification system mainly comprises pick up camera, memory cell, graphics processing unit and signal output unit, the pre-stored structure that all type of workpiece are arranged in memory cell, shape, size, the data such as material, pick up camera is arranged on the dead ahead of switching mechanism 4, for catching the image of workpiece to be processed, pick up camera is connected with graphics processing unit with memory cell, pick up camera is sent to graphics processing unit and memory cell by the image captured, the image that graphics processing unit and memory cell will be captured by pick up camera and pre-stored data compare, automatically determine the workpiece type, and by signal output unit, this signal is transferred to controller, controller is selected suitable fixture 3 automatically according to the workpiece type, the clamper 13 that controller is controlled selected fixture 3 rotates, this fixture 3 is delivered to the position of upset main shaft 12.
Image identification system is when automatically identifying the workpiece type, the picture recognition system of both sides is also distinguished the distance between measuring workpieces both sides and fixture 3, to determine the gripping position of fixture 3, if the relative position of switching mechanism 4 and workpiece, not on the axis of upset main shaft 12, is adjusted automatically in the gripping position.
In the process of gripping workpiece, image identification system is also differentiated the positioning precision of fixture 3 simultaneously, complete the positioning action of workpiece, to guarantee the gripping correct position, in this process, require positioning precision to be not less than 2mm, if precision is undesirable, by controller, controls fixture 3 and return to initial position.Switching mechanism 4 will be adjusted the relative position with workpiece automatically, then, again carry out the gripping positioning action, until positioning precision meets the requirements, can complete the gripping action.
Utilize image identification system automatically to identify the workpiece type, and then automatically change corresponding fixture 3 by controller, and complete gripping and the upset of different workpieces, reduce the quantity of switching mechanism on mixed runoff yield waterline, the input of saving equipment funds, shorten conveyor line length and the piece installing of shortening section is rolled off the production line the cycle.
Below in conjunction with Fig. 3, describe working process of the present utility model in detail.
1,, after workpiece to be processed is transported to the roll-over table position with conveyor line 1, operating personal, by operation control panel 10, starts turning device 2 and enters mode of operation, starts image identification system simultaneously.
2, the pick up camera in image identification system catches the image of workpiece, and image is sent to graphics processing unit and the memory cell in image identification system, the image that graphics processing unit and memory cell will be captured by pick up camera and pre-stored data compare, automatically determine the workpiece type, and by signal output unit, this signal being transferred to controller, controller judges according to the workpiece type whether the fixture 3 instantly be fixed on upset main shaft 12 meets the gripping requirement of workpiece.
If fixture 3 does not meet, need to change corresponding fixture 3.Controller drives turning cylinder 14 rotations of the clamper 13 of undesirable fixture 3, rotate to fixture 3 positions clamping fixture 3, disconnect the power supply of the electromagnet of upset main shaft 12 simultaneously, fixture 3 and upset main shaft 12 are broken away from, controller drives the turning cylinder 14 of clamper 13 to rotate round about, drives fixture 3 and is back to initial position.Then, controller is controlled turning cylinder 14 rotations of the clamper 13 of satisfactory fixture 3, fixture 3 is transported to the position of upset main shaft 12, controller is controlled the electromagnet action adhesive fixture 3 of upset main shaft 12, after to be positioned getting well, open electromagnetic actuation by operation control panel 10 fixture 3 is adsorbed on upset main shaft 12, fixture clamper 13 unclamps clamping and rotates and return back to initial position by turning cylinder 14.
3, after fixture 3 is in place, the image that image identification system catches according to pick up camera, the distance between measuring workpieces both sides and fixture 3 automatically, to determine the gripping position of fixture 3, judge that the gripping position is whether on the axis of upset main shaft 12 simultaneously, if no longer on axis, carry out self aligning.
The self aligning process is, control the second travel mechanism by controller, base 7 is moved on X-direction along guide rail 8, control lifting mechanism simultaneously, make elevating bracket 6 rise or descend along the slideway 11 on support 5, and then the relative position of accurate adjustment upset main shaft 12, fixture 3 and workpiece.The displacement of two-part lifting and X-axis, sense of displacement all require unanimously, to guarantee the dead in line of two antimeric upset main shafts 12.
4, after the gripping location positioning, controller is controlled the first travel mechanism in two parts, and two supports 5 are moved relative to close on Y direction, before drive upset main shaft 12 and fixture 3, removes the gripping workpiece.
In the process of gripping workpiece, image identification system will complete the positioning action of workpiece, to guarantee the gripping correct position, in this process, require positioning precision to be not less than 2mm, if precision is undesirable, fixture 3 returns to initial position, and switching mechanism 4 is by the relative position of self aligning and workpiece.Then, again carry out the gripping positioning action, until positioning precision meets the requirements, can complete the gripping action.
5, after gripping completes, controller is controlled lifting mechanism, make elevating bracket 6 increase along the slideway 11 on support 5, and then the workpiece of drive fixture 3 clampings rises together.
6, after arriving predetermined altitude, controller is controlled 12 rotations of upset main shaft, drives workpiece turning 180 degree.
7, after having overturn, controller is controlled lifting mechanism, and elevating bracket 6 is descended along the slideway 11 on support 5, and then the workpiece that drives fixture 3 clampings descends together, until it drops on the platform position of conveyor line 1.
8, controller is controlled fixture 3 and is unclamped and be retracted into initial position, controls the first travel mechanism in two parts simultaneously, make two supports 5 along Y direction relative to away from moving.
9, the workpiece after the upset runs to next station with conveyor line 1.
Embodiment bis-:
With embodiment mono-difference, be, do not adopt clamper 13, but two fixtures 3 are set on elevating bracket 6 and 4, two fixtures 3 of two groups of switching mechanisms are separately fixed on two upset main shafts 12, utilize which fixture 3, just drive corresponding upset main shaft 12 to rotate.
Embodiment tri-:
With embodiment mono-difference, be, clamper 13 adopts the chute type structure, and fixture 3 slides on slideway, and then is delivered to the position of upset main shaft 12, or away from upset main shaft 12.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not break away from technical solutions of the utility model, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1. a Multifunction turning apparatus, it is characterized in that: comprise two parts that are symmetricly set on the conveyor line both sides, each part includes main body fuselage, at least one fixture, drive at least one group of switching mechanism and the controller of described fixture upset, described switching mechanism is fixed on described main body fuselage, relatively symmetrically arranged described fixture clamping is positioned at the workpiece on described conveyor line, and described fixture and/or described switching mechanism are connected with described controller.
2. Multifunction turning apparatus according to claim 1, it is characterized in that: described main body fuselage comprises support, elevating bracket and base, described elevating bracket by lifting mechanism along the Z axis mobile link on described support, described support is automatically connected on described base along y-axis shift by the first travel mechanism, both sides at described conveyor line are arranged with guide rail in parallel, described base by the second travel mechanism along the X-axis mobile link on described guide rail, described switching mechanism is fixed on described elevating bracket, described lifting mechanism, the first travel mechanism is connected with described controller with the second travel mechanism.
3. Multifunction turning apparatus according to claim 1, it is characterized in that: described switching mechanism comprises a upset main shaft and the driver train for driving the upset main shaft to rotate, described fixture is arranged on described upset main shaft, described upset main shaft rotarily drives described fixture rotation, and described driver train is connected with described controller.
4. Multifunction turning apparatus according to claim 3 is characterized in that: the detachable connection between described fixture and described upset main shaft.
5. Multifunction turning apparatus according to claim 3 is characterized in that: in described switching mechanism, also be provided with for the image identification system of the type of the described workpiece of identification automatically, described image identification system is connected with described controller.
6. Multifunction turning apparatus according to claim 3, it is characterized in that: on described elevating bracket, be provided with for clamping at least one clamper of described fixture, between described clamper and described elevating bracket, by kinematic mechanism is movable, be connected, described clamper drives described clamp movement described fixture is delivered to described upset main spindle's or breaks away from described upset main spindle's, and described kinematic mechanism is connected with described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358491 CN202704503U (en) | 2012-07-23 | 2012-07-23 | Multifunctional turnover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358491 CN202704503U (en) | 2012-07-23 | 2012-07-23 | Multifunctional turnover device |
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|---|---|
| CN202704503U true CN202704503U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220358491 Expired - Fee Related CN202704503U (en) | 2012-07-23 | 2012-07-23 | Multifunctional turnover device |
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| CN (1) | CN202704503U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569641A (en) * | 2012-07-23 | 2014-02-12 | 南车青岛四方机车车辆股份有限公司 | Multifunctional overturning device and method |
| CN104097933A (en) * | 2013-04-11 | 2014-10-15 | 三星泰科威株式会社 | Device for rotating material in material production equipment |
| CN104401712A (en) * | 2014-07-16 | 2015-03-11 | 重庆国际复合材料有限公司 | Yarn unloading and carrying device |
| CN105329647A (en) * | 2015-12-04 | 2016-02-17 | 湘潭大学 | Heavy type lead-acid storage battery turnover device |
| CN105564954A (en) * | 2016-02-02 | 2016-05-11 | 常州快克锡焊股份有限公司 | Adjustable turnover device for workpieces in production line |
| CN105858158A (en) * | 2016-05-27 | 2016-08-17 | 深圳市劲拓自动化设备股份有限公司 | Automatic overturning device |
| CN106185292A (en) * | 2016-08-29 | 2016-12-07 | 广州达意隆包装机械股份有限公司 | A kind of compressor positioner |
| CN111099323A (en) * | 2019-12-30 | 2020-05-05 | 沈高法 | Multi-shaft turnover mechanism of automobile body conveying line for manufacturing automobile shell |
| CN112658641A (en) * | 2020-12-25 | 2021-04-16 | 长沙中联消防机械有限公司 | Turnover device, turnover equipment and turnover method of to-be-turned piece |
| CN112693843A (en) * | 2020-12-22 | 2021-04-23 | 江西龙芯微科技有限公司 | Integrated circuit feeding mechanism |
| CN112707139A (en) * | 2021-03-29 | 2021-04-27 | 烟台鑫隆建材有限公司 | Arrangement transmission device of coke oven clay hollow brick |
-
2012
- 2012-07-23 CN CN 201220358491 patent/CN202704503U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569641A (en) * | 2012-07-23 | 2014-02-12 | 南车青岛四方机车车辆股份有限公司 | Multifunctional overturning device and method |
| CN103569641B (en) * | 2012-07-23 | 2016-05-25 | 中车青岛四方机车车辆股份有限公司 | Multifunction turning apparatus and method for turning |
| CN104097933B (en) * | 2013-04-11 | 2017-04-05 | 韩华泰科株式会社 | Device material rotated in material production equipment |
| CN104097933A (en) * | 2013-04-11 | 2014-10-15 | 三星泰科威株式会社 | Device for rotating material in material production equipment |
| CN104401712A (en) * | 2014-07-16 | 2015-03-11 | 重庆国际复合材料有限公司 | Yarn unloading and carrying device |
| CN105329647A (en) * | 2015-12-04 | 2016-02-17 | 湘潭大学 | Heavy type lead-acid storage battery turnover device |
| CN105564954A (en) * | 2016-02-02 | 2016-05-11 | 常州快克锡焊股份有限公司 | Adjustable turnover device for workpieces in production line |
| CN105564954B (en) * | 2016-02-02 | 2018-06-15 | 快克智能装备股份有限公司 | Assembly line workpiece is adjustable turnover device |
| CN105858158A (en) * | 2016-05-27 | 2016-08-17 | 深圳市劲拓自动化设备股份有限公司 | Automatic overturning device |
| CN105858158B (en) * | 2016-05-27 | 2019-01-04 | 深圳市劲拓自动化设备股份有限公司 | A kind of automatic turning device |
| CN106185292A (en) * | 2016-08-29 | 2016-12-07 | 广州达意隆包装机械股份有限公司 | A kind of compressor positioner |
| CN106185292B (en) * | 2016-08-29 | 2018-09-21 | 广州达意隆包装机械股份有限公司 | A kind of compression machine positioning device |
| CN111099323A (en) * | 2019-12-30 | 2020-05-05 | 沈高法 | Multi-shaft turnover mechanism of automobile body conveying line for manufacturing automobile shell |
| CN112693843A (en) * | 2020-12-22 | 2021-04-23 | 江西龙芯微科技有限公司 | Integrated circuit feeding mechanism |
| CN112658641A (en) * | 2020-12-25 | 2021-04-16 | 长沙中联消防机械有限公司 | Turnover device, turnover equipment and turnover method of to-be-turned piece |
| CN112707139A (en) * | 2021-03-29 | 2021-04-27 | 烟台鑫隆建材有限公司 | Arrangement transmission device of coke oven clay hollow brick |
| CN112707139B (en) * | 2021-03-29 | 2021-07-02 | 烟台鑫隆建材有限公司 | Arrangement transmission device of coke oven clay hollow brick |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Qingdao city Jihongtan town Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20200723 |