CN104723145A - Clamping tool of artificial bone - Google Patents

Clamping tool of artificial bone Download PDF

Info

Publication number
CN104723145A
CN104723145A CN201510165372.4A CN201510165372A CN104723145A CN 104723145 A CN104723145 A CN 104723145A CN 201510165372 A CN201510165372 A CN 201510165372A CN 104723145 A CN104723145 A CN 104723145A
Authority
CN
China
Prior art keywords
stud
swing arm
artifical bone
clamper
groove
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.)
Granted
Application number
CN201510165372.4A
Other languages
Chinese (zh)
Other versions
CN104723145B (en
Inventor
张浩波
肖吉军
魏玉坤
孙建强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Huagong Technology Development Group Co ltd
Original Assignee
University of Jinan
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by University of Jinan filed Critical University of Jinan
Priority to CN201510165372.4A priority Critical patent/CN104723145B/en
Publication of CN104723145A publication Critical patent/CN104723145A/en
Application granted granted Critical
Publication of CN104723145B publication Critical patent/CN104723145B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a clamping tool of an artificial bone. The clamping tool of the artificial bone is used for solving the problem that artificial bones can not be clamped or fixed conveniently in the machining process of the artificial bones. The clamping tool of the artificial bone comprises a base, a locating assembly and a fixing assembly. A stand plate is arranged on the base and is provided with a round hole and a rail groove with the round hole as the center. The locating assembly mainly comprises a flat plate and a first holder, a first stud and a second stud are fixed to one end of the flat plate, the first stud is connected with the round hole in a rotating mode, the second stud is placed in the rail groove, and a drive mechanism used for driving the second stud to slide in the rail groove is arranged between the second stud and the base. A guide rail is arranged at the other end of the flat plate, and two first holders are arranged on the guide rail. The fixing assembly comprises a first swinging rod and a second swinging rod which are hinged to each other, second holders are movably installed on the first swinging rod and the second swinging rod, and flexible pads are arranged inside the second holders. The clamping tool can firmly clamp the artificial bone and will not damage the artificial bone.

Description

The clamping tooling of a kind of artifical bone
Technical field
The present invention relates to clamping tooling technical field, specifically a kind of frock for clamping artifical bone in the machined of artifical bone.
Background technology
Artifical bone is a kind of novel inorganic nonmetallic materials with biological function, it is similar to the character of people's bone and natural teeth, artifical bone can rely on and supplement some ion from human body fluid and form new bone, can decompose, absorb, the reaction such as precipitation at bone engagement interface, realizes bone strong bonded.In the process of artifical bone, need to clamp artificial skelecton, so that processing.Due to the particularity of artificial skelecton shape and structure, being badly in need of a kind of clamping device, to the firm grip of artificial skelecton, not damaging artifical bone for realizing again.
Summary of the invention
The object of the present invention is to provide the clamping tooling of a kind of artifical bone, for solving in the machining process of artifical bone, artifical bone grips inconvenient problem.
The present invention solves the technical scheme that its technical problem takes: the clamping tooling of a kind of artifical bone, is characterized in that, comprises base, locating assembly, fixation assembly and driving mechanism,
Described base is provided with vertical riser, described riser is provided with circular hole and the rail groove centered by this round hole axial;
Described locating assembly comprises flat board, guide rail, the first clamper, the first stud and the second stud, an end face of described flat board is installed with the first stud and the second stud, described first stud and circular hole are rotationally connected, described first stud is combined with stop nut and makes riser between stop nut and flat board, described second stud is placed in rail groove and between described base and riser, is provided with the driving mechanism that driving second stud slides at rail groove; The other end of described flat board is provided with guide rail, described guide rail is movably set with two first clampers, and be provided with locking member between described first clamper and guide rail;
Described fixation assembly comprises the first swing arm and the second swing arm that are articulated and connected, the free end of described first swing arm and the second swing arm is clamped in the first clamper respectively, first, second swing arm is movably installed with the second clamper respectively, second clamper mating reaction clamping artifical bone described in two, and flexible pad is provided with in described second clamper.
Further, described first clamper comprises lower plate, train wheel bridge, slide block and the first bolt assembly, the slide block coordinated with slide is respectively equipped with at the two ends of described lower plate, first installation end of described train wheel bridge and one end of lower plate are articulated and connected, between second installation end and the corresponding end of lower plate of described train wheel bridge, be provided with the first bolt assembly.
Further, described second clamper comprises lower support, upper support, adjusting rod, the second bolt assembly and the 3rd bolt assembly, described adjusting rod is slidably connected with the first corresponding swing arm or the second swing arm, and described second bolt assembly is arranged on adjusting rod and the first swing arm, between adjusting rod and the second swing arm; Described adjusting rod is installed with lower support, first installation end of described upper support and one end of lower support are articulated and connected, be provided with the second bolt assembly between the second installation end supported on described and the corresponding end of lower support, artifical bone is clamped between upper support and lower support.
Further, described driving mechanism comprises the gear ring be rotatably installed on riser, with gear ring engagement fit and be rotatably installed in the gear on riser, the worm gear be fixed on gear shaft, with worm gear engagement fit and the worm screw be rotatably installed on base and be arranged on the motor be connected on base and with worm screw, described second stud is fixedly connected with gear ring.
Further, the bottom supported on described is provided with the upper groove of " ∧ " shape, and be provided with the low groove of " ∨ " shape at the top of described lower support, described upper groove and low groove mating reaction clamp artifical bone.
Further, flexible pad is set in described upper groove and low groove.
Further, described locking member is jackscrew.
Further, the central angle corresponding to described rail groove is between 180 degree to 270 degree.
The invention has the beneficial effects as follows: the clamping tooling of a kind of artifical bone provided by the invention, by the swing of locating assembly upper flat plate, artifical bone is placed in suitable position, to adapt to the needs of Working position and processing technology; Dull and stereotyped swing is realized by driving mechanism, and automaticity is high, the setting of worm and gear in driving mechanism, can prevent dull and stereotyped rotation voluntarily, ensure that the stability that artifical bone clamps.Realize the clamping to artifical bone by the second clamper on fixation assembly, the second clamper is provided with upper groove and low groove, and upper and lower groove fit effect achieves the firm grip to artifical bone; Flexible pad is set in upper groove and low groove, the extrusion damage to artifical bone can be avoided.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is one of graphics of locating assembly;
Fig. 4 is the graphics two of locating assembly;
Fig. 5 is the graphics three of locating assembly;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the graphics of fixation assembly;
Fig. 8 is that flat board coordinates schematic diagram with gear ring;
Fig. 9 is that gear ring drives the dull and stereotyped schematic diagram swung;
Figure 10 is dull and stereotyped driving mechanism schematic diagram;
In figure: 1 base, 11 risers, 12 rail grooves, 13 installing holes;
2 locating assemblies, 21 is dull and stereotyped, 22 guide rails, 23 lower plates, 231 slide blocks, 24 train wheel bridges, 241 train wheel bridge first installation ends, 242 train wheel bridge second installation ends, 25 first studs, 26 second studs, 27 stop nuts;
3 fixation assemblies, 31 first oscillating decks, 32 second oscillating decks, 33 jointed shafts, 34 lower supports, support on 35,36 adjusting rods;
4 artifical bones, 51 first bolt assemblies, 52 second bolt assemblies, 53 the 3rd bolt assemblies, 6 motors, 61 gear rings, 62 gears, 63 worm gears, 64 worm screws.
Detailed description of the invention
As shown in Figures 1 to 10, the present invention includes base 1, locating assembly 2, fixation assembly 3 and drive assembly, below in conjunction with accompanying drawing, present invention is described.
As shown in Figure 1 to Figure 2, base 1 is support component of the present invention, and base is provided with the vertical riser 11 placed, riser is circular metallic plate, riser is provided with the rail groove 12 of circular arc, the central angle corresponding to this rail groove between 180 degree to 270 degree, to ensure the globality of riser.Base is provided with installing hole 13, so that realize the installation of base.Be provided with a circular hole at the center of riser, the center of this circular hole is the center of circle of rail groove.
As shown in Figures 3 to 6, locating assembly 2 comprises flat board 21, guide rail 22, lower plate 23, slide block 231, train wheel bridge 24, first stud 25, second stud 26 and stop nut 27, dull and stereotyped 21 is the metallic plate of quadrangle, dull and stereotyped profile can be rectangle, curvilinear boundary quadrilateral or trapezoidal etc., one of them end face of flat board is provided with two guide rails be arranged in parallel 22, between two guide rails, be provided with two to the first clamper, first clamper of often pair comprises lower plate 23, train wheel bridge 24 and the first bolt assembly 51.Lower plate 23 and train wheel bridge 24 are the metallic plate of rectangle, and lower plate is positioned at below, and train wheel bridge is positioned at top, two ends bottom each lower plate are fixed with a slide block 231 respectively, each slide block connects with corresponding slide, and like this, two lower plates are just connected with slide by slide block.Relative fixing for what realize between lower plate with guide rail, slide block is provided with screwed hole, in screwed hole, is provided with jackscrew, when jackscrew holds out against on guide rail, just can realize the relative fixing of slide block and guide rail.The two ends of train wheel bridge are installation end, wherein train wheel bridge first installation end 241 is articulated and connected with the corresponding end of lower plate, between train wheel bridge second installation end 242 and the corresponding end of lower plate, be provided with the first bolt assembly 51, be clamping zone between train wheel bridge and lower plate.Between two first clampers, install artifical bone's fixation assembly 3, according to the length of fixation assembly, the position of adjusting slider on guide rail, to change the distance between two first clampers.The other end of flat board is provided with two studs, and be respectively the first stud 25 and the second stud 26, first stud and the second stud and all arrange with slab normal, and have certain distance between the first stud and the second stud, this distance is the radius of rail groove.First stud coordinates and is provided with stop nut 27, arranging of stop nut can avoid the dull and stereotyped movement along round hole axial direction.During installation, be inserted in circular hole by the first stud, the first stud can rotate in circular hole, and the second stud is placed in rail groove, and the second stud can slide in rail groove.
As shown in Figure 7, fixation assembly 3 comprises the first oscillating deck 31, second oscillating deck 32, jointed shaft 33, lower support 34, upper support 35, adjusting rod 36, second bolt assembly 52 and the 3rd bolt assembly 53, first swing arm 31 and the second swing arm 32 are the metallic plate of rectangle, the installation end of the first swing arm and the second swing arm is articulated and connected by jointed shaft 33, the thickness of the first swing arm, the second swing arm and the thickness in the first gripper region adapt, so that the first clamper realizes the clamping to the first swing arm and the second swing arm.The second clamper is respectively equipped with at the free end of the first swing arm and the second swing arm, second clamper comprises lower support 34, upper support 35, adjusting rod 36, second bolt assembly 52 and the 3rd bolt assembly 53, adjusting rod and the first swing arm or the second swing arm are slidably connected, at adjusting rod and the first swing arm, the second bolt assembly 52 is respectively equipped with between adjusting rod and the second swing arm, adjusting rod and the first swing arm is realized by the second bolt assembly, relative fixing between adjusting rod with the second swing arm, also by the second bolt assembly adjustment adjusting rod and first, the relative position of the second swing arm.Adjusting rod is installed with lower support 34, lower support is strip metal member, the low groove of " ∨ " shape is provided with at the effect end of lower support, one end of lower support is hinged be provided with support 35, upper support is also strip metal member, the upper groove of " ∧ " shape is provided with at the effect end (namely relative with lower support one end) of upper support, the 3rd bolt assembly 53 is provided with between the free end and the corresponding end of lower support of upper support, lock the 3rd bolt assembly, the relative fixing of support and lower support can be realized, now, upper groove and low groove mating reaction surround the clamping chamber clamping artifical bone 4.In upper groove and low groove, be respectively equipped with flexible pad, to prevent upper and lower support, wearing and tearing caused to artifical bone.During clamping, the two ends of artifical bone are clamped in respectively in two the second clampers.According to the difference of the carrying angle of artifical bone, regulate the angle angle between the first swing arm and the second swing arm.
For driving dull and stereotyped swing, driving mechanism is provided with at the rear side of riser, driving mechanism comprises gear ring 61, gear 62, worm gear 63 and worm screw 64, as shown in Fig. 8 to Figure 10, gear ring 61 is rotatably installed in the rear side of riser, riser is rotatablely equipped with gear 62, gear and gear ring engagement fit, the first stud is fixedly connected with gear ring through after rail groove; Gear shaft is installed with worm gear 63, worm gear and worm screw 64 engagement fit, worm screw is connected with base rotation, and worm shaft is fixedly connected with motor 6 output shaft.When motor action, worm screw can be driven to rotate, and then drive worm gear wheel, worm gear and the coaxial setting of gear, and then drive worm gear wheel, finally drive ring gear against rotation, because flat board is fixedly connected with gear ring by the first stud, just drive flat board to rotate centered by the axis of the second stud, be in suitable position to make flat board.Meanwhile, rely on the self-locking performance of worm and gear, dull and stereotyped rotation voluntarily can be prevented.
Artifical bone in use, is clamped in fixation assembly by this clamping tooling, and the cooperation of upper support and lower support can realize the firm grip to artifical bone.Regulate the angle of locating assembly, the processing needs of diverse location and different process can be adapted to; Put forward the distance between joint two second clamper, the clamping demand of the artifical bone of different length can be adapted to; Regulate the angle angle of the first swing arm and the second swing arm, the clamping demand of the artifical bone of different carrying angle can be adapted to; The setting of flexible pad, can realize the flexible clamping to artifical bone, avoids the wearing and tearing to artifical bone, and flexible pad can select rubber parts.

Claims (8)

1. an artifical bone's clamping tooling, is characterized in that, comprises base, locating assembly, fixation assembly and driving mechanism,
Described base is provided with vertical riser, described riser is provided with circular hole and the rail groove centered by this round hole axial;
Described locating assembly comprises flat board, guide rail, the first clamper, the first stud and the second stud, an end face of described flat board is installed with the first stud and the second stud, described first stud and circular hole are rotationally connected, described first stud is combined with stop nut and makes riser between stop nut and flat board, described second stud is placed in rail groove and between described base and riser, is provided with the driving mechanism that driving second stud slides at rail groove; The other end of described flat board is provided with guide rail, described guide rail is movably set with two first clampers, and be provided with locking member between described first clamper and guide rail;
Described fixation assembly comprises the first swing arm and the second swing arm that are articulated and connected, the free end of described first swing arm and the second swing arm is clamped in the first clamper respectively, first, second swing arm is movably installed with the second clamper respectively, second clamper mating reaction clamping artifical bone described in two, and flexible pad is provided with in described second clamper.
2. the clamping tooling of a kind of artifical bone according to claim 1, it is characterized in that, described first clamper comprises lower plate, train wheel bridge, slide block and the first bolt assembly, the slide block coordinated with slide is respectively equipped with at the two ends of described lower plate, first installation end of described train wheel bridge and one end of lower plate are articulated and connected, between second installation end and the corresponding end of lower plate of described train wheel bridge, be provided with the first bolt assembly.
3. the clamping tooling of a kind of artifical bone according to claim 1, it is characterized in that, described second clamper comprises lower support, upper support, adjusting rod, the second bolt assembly and the 3rd bolt assembly, described adjusting rod is slidably connected with the first corresponding swing arm or the second swing arm, and described second bolt assembly is arranged on adjusting rod and the first swing arm, between adjusting rod and the second swing arm; Described adjusting rod is installed with lower support, first installation end of described upper support and one end of lower support are articulated and connected, be provided with the second bolt assembly between the second installation end supported on described and the corresponding end of lower support, artifical bone is clamped between upper support and lower support.
4. the clamping tooling of a kind of artifical bone according to claim 1, it is characterized in that, described driving mechanism comprises the gear ring be rotatably installed on riser, with gear ring engagement fit and be rotatably installed in the gear on riser, the worm gear be fixed on gear shaft, with worm gear engagement fit and the worm screw be rotatably installed on base and be arranged on the motor be connected on base and with worm screw, described second stud is fixedly connected with gear ring.
5. the clamping tooling of a kind of artifical bone according to claim 1, it is characterized in that, the bottom supported on described is provided with the upper groove of " ∧ " shape, and be provided with the low groove of " ∨ " shape at the top of described lower support, described upper groove and low groove mating reaction clamp artifical bone.
6. the clamping tooling of a kind of artifical bone according to claim 5, is characterized in that, in described upper groove and low groove, arrange flexible pad.
7. the clamping tooling of a kind of artifical bone according to claim 1, is characterized in that, described locking member is jackscrew.
8. the clamping tooling of a kind of artifical bone according to claim 1, is characterized in that, the central angle corresponding to described rail groove is between 180 degree to 270 degree.
CN201510165372.4A 2015-04-09 2015-04-09 Clamping tool of artificial bone Active CN104723145B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510165372.4A CN104723145B (en) 2015-04-09 2015-04-09 Clamping tool of artificial bone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510165372.4A CN104723145B (en) 2015-04-09 2015-04-09 Clamping tool of artificial bone

Publications (2)

Publication Number Publication Date
CN104723145A true CN104723145A (en) 2015-06-24
CN104723145B CN104723145B (en) 2017-02-01

Family

ID=53447869

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510165372.4A Active CN104723145B (en) 2015-04-09 2015-04-09 Clamping tool of artificial bone

Country Status (1)

Country Link
CN (1) CN104723145B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107529480A (en) * 2017-09-06 2018-01-02 广西玉柴机器股份有限公司 The fixing device and fixing means of multi-through hole class Components dress
CN111761553A (en) * 2020-07-06 2020-10-13 温州大学 Device for clamping artificial bone
CN114083319A (en) * 2022-01-21 2022-02-25 厚爱医疗仪器(江苏)有限公司 Clamping device is used in medical instrument processing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202070805U (en) * 2011-05-20 2011-12-14 如皋透平叶片制造有限公司 Milling tool for blade root groove of blade
CN103624580A (en) * 2013-11-08 2014-03-12 吴中区木渎蒯斌模具加工厂 Shaft machining supporting clamp provided with lubricating pieces
US20150000109A1 (en) * 2013-07-01 2015-01-01 Dick PLANK Support for workpieces
CN204094675U (en) * 2014-08-27 2015-01-14 广州市刑事科学技术研究所 A kind of bone sample clamp
CN204148918U (en) * 2014-10-24 2015-02-11 青岛海西重工有限责任公司 Axle journal bracing or strutting arrangement
CN204248401U (en) * 2014-10-16 2015-04-08 安徽安簧机械股份有限公司 A kind of hole processing device of axles in industrial vehicles shell
CN204565691U (en) * 2015-04-09 2015-08-19 济南大学 The clamping tooling of a kind of artifical bone

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202070805U (en) * 2011-05-20 2011-12-14 如皋透平叶片制造有限公司 Milling tool for blade root groove of blade
US20150000109A1 (en) * 2013-07-01 2015-01-01 Dick PLANK Support for workpieces
CN103624580A (en) * 2013-11-08 2014-03-12 吴中区木渎蒯斌模具加工厂 Shaft machining supporting clamp provided with lubricating pieces
CN204094675U (en) * 2014-08-27 2015-01-14 广州市刑事科学技术研究所 A kind of bone sample clamp
CN204248401U (en) * 2014-10-16 2015-04-08 安徽安簧机械股份有限公司 A kind of hole processing device of axles in industrial vehicles shell
CN204148918U (en) * 2014-10-24 2015-02-11 青岛海西重工有限责任公司 Axle journal bracing or strutting arrangement
CN204565691U (en) * 2015-04-09 2015-08-19 济南大学 The clamping tooling of a kind of artifical bone

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107529480A (en) * 2017-09-06 2018-01-02 广西玉柴机器股份有限公司 The fixing device and fixing means of multi-through hole class Components dress
CN111761553A (en) * 2020-07-06 2020-10-13 温州大学 Device for clamping artificial bone
CN111761553B (en) * 2020-07-06 2023-07-25 温州大学 Device for clamping artificial bones
CN114083319A (en) * 2022-01-21 2022-02-25 厚爱医疗仪器(江苏)有限公司 Clamping device is used in medical instrument processing

Also Published As

Publication number Publication date
CN104723145B (en) 2017-02-01

Similar Documents

Publication Publication Date Title
CN108555748A (en) A kind of adjustable pipe fitting cutter device of diameter and its cutting method
CN108817721B (en) Electric spark machine tool processing system
CN104723145A (en) Clamping tool of artificial bone
CN210173068U (en) A anchor clamps for abnormal shape aluminum product cutting process
CN108972240A (en) A kind of quick grinding device of bearing
CN104440546B (en) A kind of work holder of machine tool track
CN203751595U (en) Three-direction adjusting device
CN204565691U (en) The clamping tooling of a kind of artifical bone
CN208681072U (en) A kind of mechanical clamp applied widely
CN211759925U (en) Mechanical fastener clamping device
CN102847998B (en) End face milling device
CN104723242A (en) Flexible clamping device for artificial skeleton processing
CN215092102U (en) Frock clamp convenient to adjust
CN104476391B (en) A kind of machine tool track has the work holder vertically moved
CN211916143U (en) Vertical machining center anchor clamps
CN210879365U (en) Positioning and clamping auxiliary tool for machining
CN210616261U (en) Novel hardware adds clamping apparatus
CN207495045U (en) A kind of clamp structure for tap Drilling operation
CN219293913U (en) Clamp convenient to adjust
CN113561079A (en) A quick mounting fixture for square frame work piece processing
CN207696381U (en) A kind of three coordinate rolling clamps
CN218169963U (en) Production anchor clamps are polished to railway rail fastener foundry goods
CN218193527U (en) Welding positioner beneficial to torsion adjustment
CN219021635U (en) Denture fixing frame for denture processing
CN213795290U (en) Machining clamp

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Qiao Yang

Inventor after: Zhang Haobo

Inventor after: Guo Peiquan

Inventor after: Wang Shouren

Inventor after: Sun Jianqiang

Inventor before: Zhang Haobo

Inventor before: Xiao Jijun

Inventor before: Wei Yukun

Inventor before: Sun Jianqiang

COR Change of bibliographic data
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230330

Address after: 250000 1-2304, building 7, Shandong Design Creative Industrial Park (North District), No. 868, Tangye West Road, Licheng District, Jinan City, Shandong Province

Patentee after: Shandong Huagong Technology Development Group Co.,Ltd.

Address before: 250022 No. 336, South Xin Zhuang West Road, Shizhong District, Ji'nan, Shandong

Patentee before: University of Jinan