CN104475804A - Bar drilling device - Google Patents
Bar drilling device Download PDFInfo
- Publication number
- CN104475804A CN104475804A CN201410728995.3A CN201410728995A CN104475804A CN 104475804 A CN104475804 A CN 104475804A CN 201410728995 A CN201410728995 A CN 201410728995A CN 104475804 A CN104475804 A CN 104475804A
- Authority
- CN
- China
- Prior art keywords
- bar
- leading screw
- slidably connected
- motor
- support body
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
- B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
- B23Q1/62—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides
- B23Q1/621—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/28—Electric drives
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
-
- 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
- B23Q2703/04—Work clamping means using fluid means or a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a bar drilling device comprising a drilling mechanism, a bar fixing frame, a drilling mechanism driving mechanism, a translation mechanism and a lifting mechanism. The translation mechanism controls the drilling mechanism to laterally move. The lifting mechanism controls the drilling mechanism to lift. The drilling mechanism is arranged at one end of the fixing frame and slidably connected with the driving mechanism. The driving mechanism is slidably connected with the translation mechanism which is fixedly connected with the lift mechanism. The bar drilling device has the advantages that the bars are clamped onto the frame through a clamping device, a position, facing the bar end, of a drill bit is adjusted through the translation mechanism and the lifting mechanism, and the drill bit is driven by the driving mechanism to contact the bar, thus optional positions of the bar end can be processed and the production requirement of the bars of different diameters is met. The bar drilling device is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to field of machining, especially a kind of bar drilling equipment.
Background technology
Bar in use often needs at its end processing mounting holes in advance, install to meet bar, use or needs.Prior art is maintained static by borehole drill construction in process, and bar is moved towards borehole drill construction, thus contact, reach the object of boring.But this mechanism, because borehole drill construction is fixed, and the diameter of bar may often change, and therefore this kind of structure drilling machine is difficult to hole to the bar of different-diameter.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency that in prior art, drilling machine can not be holed to different-diameter bar, a kind of bar drilling equipment is provided, this device can be holed to the bar of different-diameter, and can hole to bar end different parts.
The technical solution adopted for the present invention to solve the technical problems is: a kind of bar drilling equipment, the translation mechanism that the propulsive mechanism comprise borehole drill construction, fix the fixed mount of bar, advancing borehole drill construction to advance, keyhole mechanism move left and right and the elevating mechanism that keyhole mechanism rises and declines; Described borehole drill construction is positioned at one end of fixed mount, and described drilling machine and propulsive mechanism are slidably connected, and described propulsive mechanism and translation mechanism are slidably connected, and described lifting mechanism is fixedly connected with translation mechanism.
Further, described borehole drill construction comprises drill bit, drives the motor one of drill bit rotational and the mounting blocks for mounted motor one.
As preferably, described propulsive mechanism comprises portable plate and is threaded with portable plate and the leading screw one for advancing borehole drill construction that is connected with mounting blocks of one end, described portable plate top has with drill bit towards consistent guide rail one, and described mounting blocks is slidably connected by guide rail one and portable plate.
Further, described translation mechanism comprises installing rack, leading screw two, motor two, and described motor two is in transmission connection with leading screw two, and described leading screw two is bearing on installing rack, and arranges along drill bit vertical direction; Described installing rack has guide rail two consistent with leading screw two length direction, described portable plate is threaded with leading screw two, and portable plate is slidably connected by guide rail two and described installing rack.
Particularly, described elevating mechanism comprises support, elevator, top board and motor three, described elevator is connected with bracket slide, described elevator has the tooth bar vertically arranged, described motor three controls elevator by rack pinion and is elevated on support, described top board is fixedly mounted on the upper end of elevator, is fixedly connected with bottom described installing rack with top board top.
As preferably, described fixed mount comprises support body and is arranged on the clamping device on support body top, and described clamping device is arranged on the one end near borehole drill construction on support body; Described clamping device comprises the clamping plate one be fixedly mounted on support body, relative with clamping plate one and the clamping plate two be slidably connected with support body and the cylinder driving clamping plate two to slide on support body.
The invention has the beneficial effects as follows, device of the present invention utilizes clamping device to be clamped on support body by bar, the position of drill bit relative to bar end is adjusted by translation mechanism and elevating mechanism, recycling propulsive mechanism advances drill bit to contact with bar, thus reach optional position, bar end and process, meet the processing needs of different-diameter bar, structure is simple, easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is bar drilling equipment perspective view of the present invention;
Fig. 2 is another angle perspective view of bar drilling equipment of the present invention;
In figure: 11. drill bits, 12. motor one, 13. mounting blocks, 21. portable plates, 22. leading screw one, 23. guide rail one, 31. installing racks, 32, leading screw two, 33. motor two, 34. guide rail two, 41. supports, 42. elevators, 43. top boards, 44. motors three, 45. tooth bars, 51. support bodys, 52. clamping plate one, 53. clamping plate two, 54. cylinder, 6. bars.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of bar drilling equipment, the translation mechanism that the propulsive mechanism comprise borehole drill construction, fix the fixed mount of bar 6, advancing borehole drill construction to advance, keyhole mechanism move left and right and the elevating mechanism that keyhole mechanism rises and declines; Described borehole drill construction is positioned at one end of fixed mount, and described drilling machine and propulsive mechanism are slidably connected, and described propulsive mechanism and translation mechanism are slidably connected, and described lifting mechanism is fixedly connected with translation mechanism.
For the ease of operation, in the present embodiment the concrete structure of borehole drill construction, propulsive mechanism, fixed mount, translation mechanism and elevating mechanism and mounting means as follows:
Described fixed mount comprises support body 51 and is arranged on the clamping device on support body 51 top, and described clamping device is arranged on the one end near borehole drill construction on support body 51; Described clamping device comprises the clamping plate 1 be fixedly mounted on support body 51, relative with clamping plate 1 and the clamping plate 2 53 be slidably connected with support body 51 and the cylinder 54 driving clamping plate 2 53 to slide on support body 51.
Described borehole drill construction comprises drill bit 11, drives the motor 1 of drill bit 11 rotation and the mounting blocks 13 for mounted motor 1.
Described propulsive mechanism comprises portable plate 21 and is threaded with portable plate 21 and the leading screw 1 for advancing borehole drill construction that is connected with mounting blocks 13 of one end, described portable plate 21 top has with drill bit 11 towards consistent guide rail 1, and described mounting blocks 13 is slidably connected by guide rail 1 and portable plate 21.
Described translation mechanism comprises installing rack 31, leading screw 2 32, motor 2 33, and described motor 2 33 is in transmission connection with leading screw 2 32, and described leading screw 2 32 is bearing on installing rack 31, and arranges along drill bit 11 vertical direction; Described installing rack 31 has guide rail two 34 consistent with leading screw 2 32 length direction, described portable plate 21 is threaded with leading screw 2 32, and portable plate 21 is slidably connected by guide rail 2 34 and described installing rack 31.
Described elevating mechanism comprises support 41, elevator 42, top board 43 and motor 3 44, described elevator 42 is slidably connected with support 41, described elevator 42 has the tooth bar 45 vertically arranged, described motor 3 44 controls elevator 42 by rack-and-pinion 45 transmission and is elevated on support 41, described top board 43 is fixedly mounted on the upper end of elevator 42, be fixedly connected with top board 43 top bottom described installing rack 31, motor 3 44 can adopt servomotor.
Using method is as follows: be first placed on support body 51 by bar 6, side is resisted against inside clamping plate 1, then cylinder 54 is started, cylinder 54 promotes clamping plate 2 53 and draws close to clamping plate 1, thus bar 6 is fixed on support body 51, then starter motor 3 44, motor 3 44 drives elevator 42 to be elevated by tooth bar 45, thus the height of adjustment drill bit 11, then starter motor 2 33, motor 2 33 drives leading screw 2 32 to rotate, leading screw 2 32 drives portable plate 21 translation on installing rack 31, thus adjustment drill bit 11 horizontal level, then starter motor 1, drill bit 11 rotating operation, turn leading screw 1 can conveniently turn leading screw 1 at leading screw 1 end installation handwheel or other devices or drive leading screw 1 rotation mounting blocks 13 namely to move towards bar 6 on portable plate 21, namely the feeding of drill bit 11 is realized, and then realize bar 6 and hole, structure of the present invention is simple, easy to operate, the processing needs of different bar 6 can be met, and can realize in any position boring of same caliber bar 6 end face, applied widely.
Claims (6)
1. a bar drilling equipment, is characterized in that: the translation mechanism that the propulsive mechanism comprise borehole drill construction, fix the fixed mount of bar (6), advancing borehole drill construction to advance, keyhole mechanism move left and right and the elevating mechanism that keyhole mechanism rises and declines; Described borehole drill construction is positioned at one end of fixed mount, and described drilling machine and propulsive mechanism are slidably connected, and described propulsive mechanism and translation mechanism are slidably connected, and described lifting mechanism is fixedly connected with translation mechanism.
2. bar drilling equipment according to claim 1, is characterized in that: described borehole drill construction comprises drill bit (11), drives drill bit (11) motor one (12) that rotates and the mounting blocks (13) for mounted motor one (12).
3. bar drilling equipment according to claim 2, it is characterized in that: described propulsive mechanism comprises portable plate (21) and is threaded with portable plate (21) and the leading screw one (22) for advancing borehole drill construction that is connected with mounting blocks (13) of one end, described portable plate (21) top has with drill bit (11) towards consistent guide rail one (23), and described mounting blocks (13) is slidably connected by guide rail one (23) and portable plate (21).
4. bar drilling equipment according to claim 3, it is characterized in that: described translation mechanism comprises installing rack (31), leading screw two (32), motor two (33), described motor two (33) is in transmission connection with leading screw two (32), described leading screw two (32) is bearing on installing rack (31), and arranges along drill bit (11) vertical direction; Described installing rack (31) have guide rail two (34) consistent with leading screw two (32) length direction, described portable plate (21) is threaded with leading screw two (32), and portable plate (21) is slidably connected by guide rail two (34) and described installing rack (31).
5. bar drilling equipment according to claim 4, it is characterized in that: described elevating mechanism comprises support (41), elevator (42), top board (43) and motor three (44), described elevator (42) and support (41) are slidably connected, described elevator (42) has the tooth bar (45) vertically arranged, described motor three (44) controls elevator (42) in the upper lifting of support (41) by rack-and-pinion (45) transmission, described top board (43) is fixedly mounted on the upper end of elevator (42), described installing rack (31) bottom is fixedly connected with top board (43) top.
6. bar drilling equipment according to claim 1, it is characterized in that: described fixed mount comprises support body (51) and is arranged on the clamping device on support body (51) top, described clamping device is arranged on the upper one end near borehole drill construction of support body (51); Described clamping device comprises the clamping plate one (52) be fixedly mounted on support body (51), relative with clamping plate one (52) and clamping plate two (53) be slidably connected with support body (51) and drives clamping plate two (53) at the upper cylinder (54) slided of support body (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728995.3A CN104475804A (en) | 2014-12-03 | 2014-12-03 | Bar drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728995.3A CN104475804A (en) | 2014-12-03 | 2014-12-03 | Bar drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104475804A true CN104475804A (en) | 2015-04-01 |
Family
ID=52750480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410728995.3A Pending CN104475804A (en) | 2014-12-03 | 2014-12-03 | Bar drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104475804A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903346A (en) * | 2017-04-05 | 2017-06-30 | 绔ユ旦 | A kind of dalle punch device |
| CN106914643A (en) * | 2017-04-05 | 2017-07-04 | 绔ユ旦 | A kind of dalle perforating device |
| CN106944645A (en) * | 2017-05-02 | 2017-07-14 | 马云飞 | A kind of steel mould for electric pole Special drilling device |
| CN107335838A (en) * | 2017-07-31 | 2017-11-10 | 湖州华通研磨制造有限公司 | One kind machining uses multifunctional hole-drilling machine |
| CN110883356A (en) * | 2019-12-02 | 2020-03-17 | 缙云新阳工艺品有限公司 | Automatic drilling device for craft clock shell |
| CN111660115A (en) * | 2020-07-07 | 2020-09-15 | 新昌县益旭龙机械科技有限公司 | Numerical control machining fixture equipment with quick adjusting and positioning functions |
| CN112976380A (en) * | 2021-04-03 | 2021-06-18 | 洛阳市自动化研究所有限公司 | Automatic clamping device for crystal bar processing |
| CN113714742A (en) * | 2021-08-31 | 2021-11-30 | 王月 | Method for manufacturing seamless steel tube |
| CN118204771A (en) * | 2024-05-20 | 2024-06-18 | 江苏荣旭机械有限公司 | Multifunctional machine tool for motor shaft production |
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| EP0058517A2 (en) * | 1981-02-13 | 1982-08-25 | Ian Roland Yarnell | Remote drilling apparatus |
| CN201799639U (en) * | 2010-08-27 | 2011-04-20 | 黄永德 | Aluminum plastic sectional material drilling machine |
| CN201906986U (en) * | 2011-01-01 | 2011-07-27 | 宁波飞图自动技术有限公司 | Aluminum profile tapping device |
| CN103464805A (en) * | 2013-08-30 | 2013-12-25 | 成都银科同步带轮制造有限公司 | Synchronous-pulley threaded hole machining mechanism capable of limiting lifting displacement |
| CN203437687U (en) * | 2013-08-23 | 2014-02-19 | 佛山市迈雷特数控技术有限公司 | Circular mold inner-outer drilling numerically-controlled machine tool |
| CN103600103A (en) * | 2013-12-03 | 2014-02-26 | 广州中国科学院沈阳自动化研究所分所 | Automatic transmitting and positioning aluminum profile drilling machine and method |
| CN203843221U (en) * | 2014-04-04 | 2014-09-24 | 深圳市得鑫自动化设备有限公司 | Three-axis mechanical arm with CCD lens device |
| CN204262407U (en) * | 2014-12-03 | 2015-04-15 | 江苏武进不锈股份有限公司 | Bar drilling equipment |
-
2014
- 2014-12-03 CN CN201410728995.3A patent/CN104475804A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0058517A2 (en) * | 1981-02-13 | 1982-08-25 | Ian Roland Yarnell | Remote drilling apparatus |
| CN201799639U (en) * | 2010-08-27 | 2011-04-20 | 黄永德 | Aluminum plastic sectional material drilling machine |
| CN201906986U (en) * | 2011-01-01 | 2011-07-27 | 宁波飞图自动技术有限公司 | Aluminum profile tapping device |
| CN203437687U (en) * | 2013-08-23 | 2014-02-19 | 佛山市迈雷特数控技术有限公司 | Circular mold inner-outer drilling numerically-controlled machine tool |
| CN103464805A (en) * | 2013-08-30 | 2013-12-25 | 成都银科同步带轮制造有限公司 | Synchronous-pulley threaded hole machining mechanism capable of limiting lifting displacement |
| CN103600103A (en) * | 2013-12-03 | 2014-02-26 | 广州中国科学院沈阳自动化研究所分所 | Automatic transmitting and positioning aluminum profile drilling machine and method |
| CN203843221U (en) * | 2014-04-04 | 2014-09-24 | 深圳市得鑫自动化设备有限公司 | Three-axis mechanical arm with CCD lens device |
| CN204262407U (en) * | 2014-12-03 | 2015-04-15 | 江苏武进不锈股份有限公司 | Bar drilling equipment |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914643A (en) * | 2017-04-05 | 2017-07-04 | 绔ユ旦 | A kind of dalle perforating device |
| CN106903346A (en) * | 2017-04-05 | 2017-06-30 | 绔ユ旦 | A kind of dalle punch device |
| CN106914643B (en) * | 2017-04-05 | 2018-10-19 | 宣城福美达新材料有限公司 | A kind of dalle perforating device |
| CN106903346B (en) * | 2017-04-05 | 2018-11-30 | 江苏新喜地新材料科技有限公司 | A kind of dalle punch device |
| CN106944645B (en) * | 2017-05-02 | 2019-09-03 | 马云飞 | A kind of steel mould for electric pole Special drilling device |
| CN106944645A (en) * | 2017-05-02 | 2017-07-14 | 马云飞 | A kind of steel mould for electric pole Special drilling device |
| CN107335838A (en) * | 2017-07-31 | 2017-11-10 | 湖州华通研磨制造有限公司 | One kind machining uses multifunctional hole-drilling machine |
| CN110883356A (en) * | 2019-12-02 | 2020-03-17 | 缙云新阳工艺品有限公司 | Automatic drilling device for craft clock shell |
| CN111660115A (en) * | 2020-07-07 | 2020-09-15 | 新昌县益旭龙机械科技有限公司 | Numerical control machining fixture equipment with quick adjusting and positioning functions |
| CN112976380A (en) * | 2021-04-03 | 2021-06-18 | 洛阳市自动化研究所有限公司 | Automatic clamping device for crystal bar processing |
| CN113714742A (en) * | 2021-08-31 | 2021-11-30 | 王月 | Method for manufacturing seamless steel tube |
| CN113714742B (en) * | 2021-08-31 | 2024-05-03 | 江阴市华伟金属制品有限公司 | Manufacturing method of seamless steel tube |
| CN118204771A (en) * | 2024-05-20 | 2024-06-18 | 江苏荣旭机械有限公司 | Multifunctional machine tool for motor shaft production |
| CN118204771B (en) * | 2024-05-20 | 2024-09-03 | 江苏荣旭机械有限公司 | Multifunctional machine tool for motor shaft production |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |
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| RJ01 | Rejection of invention patent application after publication |