CN103921128A - Rack milling and drilling center with feeding platform - Google Patents
Rack milling and drilling center with feeding platform Download PDFInfo
- Publication number
- CN103921128A CN103921128A CN201410173772.5A CN201410173772A CN103921128A CN 103921128 A CN103921128 A CN 103921128A CN 201410173772 A CN201410173772 A CN 201410173772A CN 103921128 A CN103921128 A CN 103921128A
- Authority
- CN
- China
- Prior art keywords
- tooth bar
- base
- head
- rack
- face
- 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
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Feeding Of Workpieces (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a rack milling and drilling center with a feeding platform. The rack milling and drilling center comprises a workbench base, a workbench, a rack positioning structure and a first lead screw power head. The rack positioning structure is arranged on the workbench and comprises a rack base, a rack fixing pressure cylinder, a rack fixing pressurizing block, a rack positioning pressure cylinder and a rack positioning pressurizing block. The two sides of the rack base are provided with a plurality of counterbore machining power heads and a plurality of counterbore chamfering power heads respectively, the positions of the counterbore machining power heads correspond to the positions of the counterbore chamfering power heads one to one, the two ends of the rack base are respectively provided with a rack end face machining power head and a rack end face drilling power head, the rack end face drilling power heads are multi-axis power heads, and the feeding side of the rack base is provided with the rack feeding platform. According to the rack milling and drilling center, the full-automatic processes of rack machining feeding, positioning and clamping are achieved, and sequential machining of multiple working procedures can be achieved only through one-time clamping.
Description
Technical field
The present invention relates to a kind of tooth bar Xi Zuan center with material conveying platform.
Background technology
Tooth bar is very important active drive disk assembly, is widely used in the industries such as machinery, aviation, instrument.The conventional production process of tooth bar roughly comprises a, the tooth bar steel billet that milling formation meets dimensional requirement is carried out in the four sides of steel bar, b, to tooth bar steel billet plane form tooth bar, c, tooth bar is carried out to finish-milling, complete the accurate processing to profile of tooth, d, on tooth bar, process the length dimension of location and installation hole fine finishining tooth bar.The existing process equipment artificial feeding of employing the clamping tooth bar conventionally for the length dimension step that processes location and installation hole fine finishining tooth bar on tooth bar is adopted, efficiency is low, is not suitable for streamline batch production.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, can automatic charge and the tooth bar Xi Zuan center with material conveying platform of automated exchanged cutter.
The present invention addresses the above problem adopted technical scheme:
A kind of tooth bar Xi Zuan center, it is characterized in that: comprise table base, workbench, tooth bar location structure and the first screw mandrel unit head, tooth bar location structure is arranged on workbench, workbench is slidably mounted on table base by moving guide rail, the first screw mandrel unit head drives the relative table base of workbench to do horizontal reciprocating rectilinear motion, tooth bar location structure comprises tooth bar base, tooth bar is fixed pressurized cylinder, tooth bar is fixed booster block, tooth bar location pressurized cylinder and tooth bar location booster block, one side of tooth bar base is fixed with tooth bar block, the fixing booster block of tooth bar is positioned at a side of tooth bar base, the fixing pressurized cylinder of tooth bar drives the fixing booster block of tooth bar to move horizontally, thereby tooth bar is clamped between the fixing booster block of tooth bar and tooth bar block, tooth bar location booster block is positioned at the top of tooth bar base, the lower end of tooth bar location booster block is provided with the positioning tooth structure matching with the profile of tooth of tooth bar, tooth bar location pressurized cylinder drives tooth bar location booster block vertically to move, thereby tooth bar is clamped between tooth bar location booster block and tooth bar base, the both sides of tooth bar base are respectively arranged with several counter sink processing dynamics heads and several counter sink chamfering unit heads, the position of counter sink processing dynamics head and counter sink chamfering unit head is corresponding one by one, counter sink processing dynamics head and counter sink chamfering unit head are arranged on workbench, the direction of feed of counter sink processing dynamics head and counter sink chamfering unit head is all horizontally disposed with and perpendicular to the length direction of tooth bar base, the two ends of tooth bar base are provided with tooth bar end face processing dynamics head, table base both sides are provided with end face processing dynamics head base, tooth bar end face processing dynamics head is fixed on end face processing dynamics head base, end face processing dynamics head base and table base are fixed, the direction of feed of tooth bar end face processing dynamics head is parallel to the length direction of tooth bar base, the two ends of tooth bar base are provided with tooth bar end face drilling power head, tooth bar end face drilling power head adopts multiaxis unit head, end face drilling tool and end face reaming knife are installed on multiaxis unit head, table base both sides are provided with end face drilling power head base, tooth bar end face drilling power head is fixed on end face drilling power head base, end face drilling power head base and table base are fixed, the direction of feed of tooth bar end face drilling power head is parallel to the length direction of tooth bar base.
Operation principle of the present invention:
Tooth bar material conveying platform promotes tooth bar by charging ram and moves on platform drawing-inroller, realize tooth bar linear push is delivered on tooth bar base, be transported to the tooth bar on tooth bar base, under the effect of the fixing pressurized cylinder of tooth bar and tooth bar location pressurized cylinder, tooth bar is clamped between the fixing booster block of tooth bar and tooth bar block and between tooth bar location booster block and tooth bar base, the fixing booster block of its middle rack has limited the movement in tooth bar horizontal direction, tooth bar location booster block with positioning tooth structure can match with the profile of tooth of tooth bar well, not only can realize the automatic position fixing process to tooth bar, but also limit the movement of tooth bar in the vertical direction.Complete after positioning step, counter sink processing dynamics head and several counter sink chamfering unit heads, hole and chamfering to tooth bar successively, and the operation simultaneously of multiple unit head, greatly improved production efficiency.The first screw mandrel unit head drives the relative table base of workbench to do horizontal reciprocating rectilinear motion, treat the rack alignment tooth bar end face processing dynamics head on tooth bar base, carry out the Milling Process of end face, two tooth bar end face processing dynamics head manufacturing gear strip two ends respectively, only need clamped one time, milling when just can realizing two end faces, completes the processing of size.Treat that tooth bar on tooth bar base is to tooth bar end face drilling power head, because tooth bar end face drilling power head adopts multiaxis unit head, can realize successively drilling and reaming, tooth bar end face drilling power head is manufacturing gear strip two ends respectively, only need clamped one time, when just can realizing two end faces, processing, has improved working (machining) efficiency.
As preferably, table base is provided with discharge device, described discharge device comprises the first feeding plate, the second feeding plate and spiral chip removal machine, on workbench, offer material-dropping hole, the below of material-dropping hole is fixed with hopper, the first feeding plate, the second feeding plate are all positioned at the below of hopper, and the first feeding plate, the second feeding plate are obliquely installed the top in spiral chip removal machine.
The present invention compared with prior art, has the following advantages and effect: realized from the feeding of tooth bar processing, the full-automatic process of positioning and clamping, only needed clamped one time, just can realize the processing successively of multiple operations, improved working (machining) efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the partial structurtes schematic diagram of the embodiment of the present invention.
Fig. 3 is the structural representation of embodiment of the present invention tooth bar location structure.
Fig. 4 is the structural representation of embodiment of the present invention tooth bar material conveying platform.
Fig. 5 is embodiment of the present invention broken section structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Referring to Fig. 1-Fig. 5, the present embodiment has the tooth bar Xi Zuan center of material conveying platform, comprise table base 11, workbench 12, tooth bar location structure 2 and the first screw mandrel unit head, tooth bar location structure 2 is arranged on workbench 12, workbench 12 is slidably mounted on table base 11 by moving guide rail, the first screw mandrel unit head drives the relative table base 11 of workbench 12 to do horizontal reciprocating rectilinear motion, tooth bar location structure 2 comprises tooth bar base 21, tooth bar is fixed pressurized cylinder 22, tooth bar is fixed booster block 23, tooth bar location pressurized cylinder 24 and tooth bar location booster block 25, one side of tooth bar base 21 is fixed with tooth bar block 211, the fixing booster block 23 of tooth bar is positioned at a side of tooth bar base 21, the fixing pressurized cylinder 22 of tooth bar drives the fixing booster block 23 of tooth bar to move horizontally, thereby tooth bar is clamped between the fixing booster block 23 of tooth bar and tooth bar block 211, tooth bar location booster block 25 is positioned at the top of tooth bar base 21, the lower end of tooth bar location booster block 25 is provided with the positioning tooth structure matching with the profile of tooth of tooth bar, tooth bar location pressurized cylinder 24 drives tooth bar location booster block 25 vertically to move, thereby tooth bar is clamped between tooth bar location booster block 25 and tooth bar base 21, the both sides of tooth bar base 21 are respectively arranged with several counter sink processing dynamics heads 31 and several counter sink chamfering unit heads 32, the position of counter sink processing dynamics head 31 and counter sink chamfering unit head 32 is corresponding one by one, counter sink processing dynamics head 31 and counter sink chamfering unit head 32 are arranged on workbench 12, the direction of feed of counter sink processing dynamics head 31 and counter sink chamfering unit head 32 is all horizontally disposed with and perpendicular to the length direction of tooth bar base 21, the two ends of tooth bar base 21 are provided with tooth bar end face processing dynamics head 41, table base 11 both sides are provided with end face processing dynamics head base 42, tooth bar end face processing dynamics head 41 is fixed on end face processing dynamics head base 42, end face processing dynamics head base 42 is fixing with table base 11, the direction of feed of tooth bar end face processing dynamics head 41 is parallel to the length direction of tooth bar base 21, the two ends of tooth bar base 21 are provided with tooth bar end face drilling power head 51, tooth bar end face drilling power head 51 adopts multiaxis unit head, end face drilling tool and end face reaming knife are installed on multiaxis unit head, table base 11 both sides are provided with end face drilling power head base 52, tooth bar end face drilling power head 51 is fixed on end face drilling power head base 52, end face drilling power head base 52 is fixing with table base 11, the direction of feed of tooth bar end face drilling power head 51 is parallel to the length direction of tooth bar base 21, the feed side of tooth bar base 21 is provided with tooth bar material conveying platform 7, tooth bar material conveying platform 7 comprises cradle 71, linear module 72, module fixed mount 73 and material conveying platform 74, module fixed mount 73 and material conveying platform 74 are fixed on cradle 71, the holder of linear module 72 is fixed on module fixed mount 73, on the sliding seat of linear module 72, be fixed with charging ram 75, one side of material conveying platform 74 is rotatablely equipped with several and is the platform drawing-inroller 76 of arranging side by side, the axis of the rotating shaft of platform drawing-inroller 76 is vertical with linear guides.
Table base 11 is provided with discharge device, discharge device comprises the first feeding plate 61, the second feeding plate 62 and spiral chip removal machine 63, on workbench 12, offer material-dropping hole 121, the below of material-dropping hole 121 is fixed with hopper 122, the first feeding plate 61, the second feeding plate 62 are all positioned at the below of hopper 122, and the first feeding plate 61, the second feeding plate 62 are obliquely installed in the top of spiral chip removal machine 63.
Above content described in this description is only made for the present invention illustrating.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment; only otherwise depart from the content of description of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (2)
1. one kind has the tooth bar Xi Zuan center of material conveying platform, it is characterized in that: comprise table base, workbench, tooth bar location structure and the first screw mandrel unit head, tooth bar location structure is arranged on workbench, workbench is slidably mounted on table base by moving guide rail, the first screw mandrel unit head drives the relative table base of workbench to do horizontal reciprocating rectilinear motion, tooth bar location structure comprises tooth bar base, tooth bar is fixed pressurized cylinder, tooth bar is fixed booster block, tooth bar location pressurized cylinder and tooth bar location booster block, one side of tooth bar base is fixed with tooth bar block, the fixing booster block of tooth bar is positioned at a side of tooth bar base, the fixing pressurized cylinder of tooth bar drives the fixing booster block of tooth bar to move horizontally, thereby tooth bar is clamped between the fixing booster block of tooth bar and tooth bar block, tooth bar location booster block is positioned at the top of tooth bar base, the lower end of tooth bar location booster block is provided with the positioning tooth structure matching with the profile of tooth of tooth bar, tooth bar location pressurized cylinder drives tooth bar location booster block vertically to move, thereby tooth bar is clamped between tooth bar location booster block and tooth bar base, the both sides of tooth bar base are respectively arranged with several counter sink processing dynamics heads and several counter sink chamfering unit heads, the position of counter sink processing dynamics head and counter sink chamfering unit head is corresponding one by one, counter sink processing dynamics head and counter sink chamfering unit head are arranged on workbench, the direction of feed of counter sink processing dynamics head and counter sink chamfering unit head is all horizontally disposed with and perpendicular to the length direction of tooth bar base, the two ends of tooth bar base are provided with tooth bar end face processing dynamics head, table base both sides are provided with end face processing dynamics head base, tooth bar end face processing dynamics head is fixed on end face processing dynamics head base, end face processing dynamics head base and table base are fixed, the direction of feed of tooth bar end face processing dynamics head is parallel to the length direction of tooth bar base, the two ends of tooth bar base are provided with tooth bar end face drilling power head, tooth bar end face drilling power head adopts multiaxis unit head, end face drilling tool and end face reaming knife are installed on multiaxis unit head, table base both sides are provided with end face drilling power head base, tooth bar end face drilling power head is fixed on end face drilling power head base, end face drilling power head base and table base are fixed, the direction of feed of tooth bar end face drilling power head is parallel to the length direction of tooth bar base, the feed side of tooth bar base is provided with tooth bar material conveying platform, tooth bar material conveying platform comprises cradle, linear module, module fixed mount and material conveying platform, module fixed mount and material conveying platform are fixed on cradle, the holder of linear module is fixed on module fixed mount, on the sliding seat of linear module, be fixed with charging ram, one side of material conveying platform is rotatablely equipped with several and is the platform drawing-inroller of arranging side by side, the axis of the rotating shaft of platform drawing-inroller is vertical with linear guides.
2. the tooth bar Xi Zuan center with material conveying platform according to claim 1, it is characterized in that: table base is provided with discharge device, described discharge device comprises the first feeding plate, the second feeding plate and spiral chip removal machine, on workbench, offer material-dropping hole, the below of material-dropping hole is fixed with hopper, the first feeding plate, the second feeding plate are all positioned at the below of hopper, and the first feeding plate, the second feeding plate are obliquely installed the top in spiral chip removal machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173772.5A CN103921128B (en) | 2014-04-29 | 2014-04-29 | A kind of tooth bar Xi Zuan center with material conveying platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173772.5A CN103921128B (en) | 2014-04-29 | 2014-04-29 | A kind of tooth bar Xi Zuan center with material conveying platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103921128A true CN103921128A (en) | 2014-07-16 |
| CN103921128B CN103921128B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410173772.5A Expired - Fee Related CN103921128B (en) | 2014-04-29 | 2014-04-29 | A kind of tooth bar Xi Zuan center with material conveying platform |
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| CN (1) | CN103921128B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945617A (en) * | 2016-06-30 | 2016-09-21 | 吴中区横泾博尔机械厂 | Limiting assembly of electromagnetic valve deck machining equipment |
| CN104275495B (en) * | 2014-09-05 | 2017-05-10 | 青岛华瑞汽车零部件股份有限公司 | Machining system and machining method of automobile differential shell |
| CN109794875A (en) * | 2019-04-04 | 2019-05-24 | 广州川也汽车装备有限公司 | A kind of vehicle glass guide-rail module testing fixture |
| CN111112962A (en) * | 2020-01-03 | 2020-05-08 | 福建鑫成裕机器人科技有限公司 | Numerical control coaxial machining process method for machining main coil |
| CN112192242A (en) * | 2020-10-19 | 2021-01-08 | 湖南昱升科技发展有限责任公司 | Automatic drilling equipment for elevator rack |
| CN112192241A (en) * | 2020-10-19 | 2021-01-08 | 湖南昱升科技发展有限责任公司 | Drilling equipment for elevator rack |
| CN112517953A (en) * | 2020-12-01 | 2021-03-19 | 济南鞍顺齿条有限公司 | Automatic drilling equipment for rack |
Families Citing this family (1)
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| CN108817979B (en) * | 2018-07-30 | 2020-10-09 | 台州天瑞电器有限公司 | Metal disc production and processing device |
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| KR20100136293A (en) * | 2009-06-18 | 2010-12-28 | 현대중공업 주식회사 | Clamping device for driving of automatic welding carriage |
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| CN203779113U (en) * | 2014-04-29 | 2014-08-20 | 浙江博雷重型机床制造有限公司 | Gear rack milling center with discharging platform |
-
2014
- 2014-04-29 CN CN201410173772.5A patent/CN103921128B/en not_active Expired - Fee Related
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| DE3638141A1 (en) * | 1986-11-08 | 1988-05-11 | Cima | Hobbing machine with checking device for the teeth of the part being machined |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275495B (en) * | 2014-09-05 | 2017-05-10 | 青岛华瑞汽车零部件股份有限公司 | Machining system and machining method of automobile differential shell |
| CN105945617A (en) * | 2016-06-30 | 2016-09-21 | 吴中区横泾博尔机械厂 | Limiting assembly of electromagnetic valve deck machining equipment |
| CN105945617B (en) * | 2016-06-30 | 2018-04-13 | 何淑琼 | The limit assembly of solenoid valve valve deck process equipment |
| CN109794875A (en) * | 2019-04-04 | 2019-05-24 | 广州川也汽车装备有限公司 | A kind of vehicle glass guide-rail module testing fixture |
| CN111112962A (en) * | 2020-01-03 | 2020-05-08 | 福建鑫成裕机器人科技有限公司 | Numerical control coaxial machining process method for machining main coil |
| CN111112962B (en) * | 2020-01-03 | 2021-09-21 | 福建鑫成裕机器人科技有限公司 | Numerical control coaxial machining process method for machining main coil |
| CN112192242A (en) * | 2020-10-19 | 2021-01-08 | 湖南昱升科技发展有限责任公司 | Automatic drilling equipment for elevator rack |
| CN112192241A (en) * | 2020-10-19 | 2021-01-08 | 湖南昱升科技发展有限责任公司 | Drilling equipment for elevator rack |
| CN112192241B (en) * | 2020-10-19 | 2024-06-11 | 湖南昱升科技发展有限责任公司 | Drilling equipment for elevator racks |
| CN112517953A (en) * | 2020-12-01 | 2021-03-19 | 济南鞍顺齿条有限公司 | Automatic drilling equipment for rack |
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|---|---|
| CN103921128B (en) | 2016-08-17 |
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Effective date of registration: 20170509 Address after: 519000, No. 10 Futian Road, Xiangzhou District, Guangdong, Zhuhai, 1, a floor of -3, workshop 2, two layers Patentee after: ZHUHAI JUNKAI MACHINERY TECHNOLOGY Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170509 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 313219 Zhejiang province Huzhou city Deqing County Town Road No. 1 Chomo leidian Patentee before: ZHEJIANG BOLEI HEAVY MACHINE TOOL MANUFACTURING Co.,Ltd. |
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Granted publication date: 20160817 Termination date: 20190429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |