CN108714705A - A kind of semi-automatic drilling aperture apparatus - Google Patents
A kind of semi-automatic drilling aperture apparatus Download PDFInfo
- Publication number
- CN108714705A CN108714705A CN201810546675.4A CN201810546675A CN108714705A CN 108714705 A CN108714705 A CN 108714705A CN 201810546675 A CN201810546675 A CN 201810546675A CN 108714705 A CN108714705 A CN 108714705A
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- CN
- China
- Prior art keywords
- screwed
- hole
- pedestal
- sliding
- main body
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- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention relates to machinery equipment field；The present invention proposes a kind of semi-automatic drilling aperture apparatus, further include being fastened by bolts the wellbore part and the fixed component for being slideably positioned in the lower end on the right side of the upper end of the pedestal and positioned at the punching unit that the supporting rack on the left of the upper end of the pedestal, the lifting part for the upper end for being set to support frame as described above, sliding sleeve are set at support frame as described above including pedestal.The present invention is clamped circular casting by the first fixture block at the first clamping seat and the second fixture block, then first motor is driven to carry out lifting to drill to casting by controlling driving motor, something which increases production efficiencys, while also avoiding the case where casting slides in boring procedure.
Description
Technical field
The present invention relates to machinery equipment field more particularly to a kind of semi-automatic drilling aperture apparatus.
Background technology
It needs to punch it in metal casting production process, but traditional casting perforating device structure is excessively simple
Single, controllability is poor, and drilling efficiency is low, can no longer meet the growth requirement of today's society.
Therefore, we are it is necessary to improve such a structure, to overcome drawbacks described above.
Invention content
The object of the present invention is to provide a kind of semi-automatic drilling aperture apparatus.
The present invention is technical solution used by solving its technical problem：
A kind of semi-automatic drilling aperture apparatus, including pedestal further include being fastened by bolts on the left of the upper end of the pedestal
Supporting rack, the lifting part of upper end for being set to support frame as described above, sliding sleeve be set to wellbore part at support frame as described above and
It is slideably positioned in the fixed component of the lower end on the right side of the upper end of the pedestal and positioned at the punching unit；
The lifting part includes mounting base and is set to the driving motor of the upper end of the mounting base；The mounting base
Be set to the top of support frame as described above, the upper end of the mounting base has been fastened by bolts driving motor, the mounting base it is upper
End left side is equipped with the first perforation, and the output shaft end of the driving motor passes through first to perforate and extend to the interior of the mounting base
The output shaft end in portion, the driving motor is connected with first gear, and the inside of the mounting base is additionally provided with and the first gear
The lower end right side of the second gear being meshed, the mounting base is equipped with the second perforation, and leading screw is provided at second perforation,
The leading screw is connected with the second gear；
The wellbore part includes crossbeam, is slideably positioned at the crossbeam punching base is fixed on the punching base
The first motor of lower end and the drill bit being connected with the output shaft end of the first motor.
Further, the upper end left-hand face of the pedestal is equipped with several first and is screwed on hole, and described first is screwed on hole
Inner wall is thread-like structure, and several first are screwed on the rounded structure distribution in hole in the upper end left-hand face of the pedestal；The branch
Support includes pedestal and is rotatably connected in the support column of the upper end of the pedestal by screw thread, and the pedestal is round table-like, the bottom
The lower end of seat is also welded with terminal pad, and the intermediate position of the pedestal is equipped with second and is screwed on hole, the middle part of the terminal pad
Position is equipped with third and is screwed on hole, and described second hole and the third hole that is screwed on that is screwed on is adapted, described second be screwed on hole with it is described
The be screwed on inner wall in hole of third is thread-like structure, and the support column is cylindric, and the lower part outer wall of the support column is shape of threads
Structure, the support column with described second is screwed on hole and third is screwed on, and hole is adapted；If being equipped in the surface of the terminal pad
Dry 4th is screwed on hole, and several four are screwed on the rounded structure distribution in hole in the surface of the terminal pad, the described 4th be screwed on hole with
Described first is screwed on, and hole is adaptable, and the terminal pad is fastened by bolts on the left of the upper end of the pedestal.
Further, the crossbeam includes main body of cross-beam and is welded in the beam arm of the side of the main body of cross-beam, described
Main body of cross-beam is cylinder-like structure, and the main body of cross-beam is adapted with the support column, and the side of the main body of cross-beam is also worn
There is the 5th to be screwed on hole, the described 5th inner wall for being screwed on hole is thread-like structure, and the described 5th hole that is screwed on is revolved with the threads of lead screw
It connects；Position is recessed with sliding slot among the front and rear surfaces of the beam arm；The punching base is square structure, in the punching base
Between position be equipped with square hole, the intermediate position of the square hole is also protruding with sliding part inwardly, the sliding part with it is described
Sliding slot is adapted；The lower end of the sliding slot is also recessed with fixing groove, and the 6th is also equipped at the punching base and is screwed on hole, and described
Six holes that are screwed on are screwed with threaded rod by screw thread, and the outside of the threaded rod is also welded with rotating disc, the threaded rod with it is described
Fixing groove is in contact；The lower end of the punching base has been fastened by bolts first motor.
Further, the fixed component includes two sliding rails being arranged in parallel on the right side of the upper end of the pedestal, sliding
It is set to the sliding block of the upper end of the sliding rail, the sliding panel in the upper end of the sliding block is fastened by bolts, is fixed on the cunning
The first clamping seat on the left of the upper end of movable plate, the second clamping seat being fixed on the right side of the upper end of the sliding panel and it is plugged in institute
State the second fixture block at the second clamping seat；
The side of the sliding block is equipped with the 7th and is screwed on hole, and the side of the sliding rail is also equipped with several eight and is screwed on hole,
Described 7th be screwed on hole with the described 8th be screwed on hole be adapted, the sliding block is fastened by bolts at the sliding rail；Described
One clamping seat includes clamping seat main body and the first fixture block for being welded on the left of the upper end of the clamping seat main body, first folder
Block is arc-shaped structure；Second clamping seat is square structure, is equipped with third perforation at second clamping seat, described the
Two fixture blocks include fixture block main body and are welded in the screw rod on the right side of the fixture block main body, and the outer wall of the screw rod is shape of threads knot
Structure, the screw rod are adapted with third perforation, and the fixture block main body is convex structure, and the outside of the screw rod is also screwed on
There is fastening nut.
The advantage of the invention is that：
The present invention is clamped circular casting by the first fixture block at the first clamping seat and the second fixture block, then passes through control
Driving motor drives first motor to carry out lifting to drilling to casting, something which increases production efficiency,
Also avoid the case where casting slides in boring procedure simultaneously.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of semi-automatic drilling aperture apparatus proposed by the present invention.
Fig. 2 is the side view of punching base.
Number and the corresponding component title represented by letter in figure：
Wherein：1- pedestals；2- supporting racks；3- lifting parts；4- punching units；5- fixed components；21- pedestals；22- is supported
Column；31- mounting bases；32- driving motors；33- leading screws；41- crossbeams；42- punching bases；43- first motors；44- drill bits；45- turns
Moving plate；51- sliding rails；52- sliding blocks；53- sliding panels；The first clamping seats of 54-；The second clamping seats of 55-；The second fixture blocks of 56-.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Diagram and specific embodiment are closed, the present invention is further explained.
As depicted in figs. 1 and 2, a kind of semi-automatic drilling aperture apparatus proposed by the present invention, including pedestal 1, further include passing through spiral shell
Bolt is anchored on supporting rack 2 on the left of the upper end of the pedestal 1, the lifting part 3 for the upper end for being set to support frame as described above 2, sliding
On the right side of the wellbore part 4 that is sheathed at support frame as described above 2 and the upper end for being slideably positioned in the pedestal 1 and it is located at the punching
The fixed component 5 of the lower end of component 4；
The lifting part 3 includes mounting base 31 and is set to the driving motor 32 of the upper end of the mounting base 31；Institute
The top that mounting base 31 is set to support frame as described above 2 is stated, the upper end of the mounting base 31 has been fastened by bolts driving motor 31,
The first perforation is equipped on the left of the upper end of the mounting base 31, the output shaft end of the driving motor 31 passes through first to perforate and prolong
The inside of the mounting base 31 is extended to, the output shaft end of the driving motor 31 is connected with first gear, the mounting base 31
Inside is additionally provided with the second gear being meshed with the first gear, and being equipped with second on the right side of the lower end of the mounting base 31 wears
Hole is provided with leading screw 33 at second perforation, and the leading screw 33 is connected with the second gear；
The wellbore part 4 includes crossbeam 41, the punching base 42 being slideably positioned at the crossbeam 41, is fixed on described beat
The first motor 43 of the lower end of hole seat 42 and the drill bit 44 being connected with the output shaft end of the first motor 43.
Further, the upper end left-hand face of the pedestal 1 is equipped with several first and is screwed on hole, and described first is screwed on hole
Inner wall is thread-like structure, and several first are screwed on the rounded structure distribution in hole in the upper end left-hand face of the pedestal 1；The branch
Support 2 includes pedestal 21 and is rotatably connected in the support column 22 of the upper end of the pedestal 21 by screw thread, and the pedestal 21 is round platform
Shape, the lower end of the pedestal 21 are also welded with terminal pad, and the intermediate position of the pedestal 21 is equipped with second and is screwed on hole, the company
The intermediate position for connecing disk is equipped with third and is screwed on hole, and described second hole and the third hole that is screwed on that is screwed on is adapted, and described second
The be screwed on inner wall in hole of hole and the third of being screwed on is thread-like structure, the support column 22 be it is cylindric, the support column 22
Lower part outer wall is thread-like structure, and the support column 22 with described second is screwed on hole and third is screwed on, and hole is adapted；In the company
The surface for connecing disk is equipped with several four and is screwed on hole, and several four are screwed on the rounded structure distribution in hole in the table of the terminal pad
Face, the described 4th be screwed on hole with described first be screwed on hole be adapted, the terminal pad is fastened by bolts in the upper of the pedestal 1
End left side.
Further, the crossbeam 41 includes main body of cross-beam and is welded in the beam arm of the side of the main body of cross-beam, institute
It is cylinder-like structure to state main body of cross-beam, and the main body of cross-beam is adapted with the support column 22, and the side of the main body of cross-beam is also
It is equipped with the 5th to be screwed on hole, the described 5th inner wall for being screwed on hole is thread-like structure, and the described 5th is screwed on hole and the leading screw 33
Screw thread is screwed on；Position is recessed with sliding slot among the front and rear surfaces of the beam arm；The punching base 42 is square structure, described to beat
The intermediate position of hole seat 42 is equipped with square hole, and the intermediate position of the square hole is also protruding with sliding part, the cunning inwardly
Moving part is adapted with the sliding slot；The lower end of the sliding slot is also recessed with fixing groove, and the 6th is also equipped at the punching base 42
Be screwed on hole, and the described 6th hole that is screwed on is screwed with threaded rod by screw thread, and the outside of the threaded rod is also welded with rotating disc 45, institute
Threaded rod is stated to be in contact with the fixing groove；The lower end of the punching base 42 has been fastened by bolts first motor 43.
Further, the fixed component 5 include two sliding rails 51 being arranged in parallel on the right side of the upper end of the pedestal 1,
Be slideably positioned in the sliding block 52 of the upper end of the sliding rail 51, be fastened by bolts the sliding panel 53 in the upper end of the sliding block 52,
The first clamping seat 54 for being fixed on the left of the upper end of the sliding panel 53, second be fixed on the right side of the upper end of the sliding panel 53
Clamping seat 55 and the second fixture block 56 being plugged at second clamping seat 55；
The side of the sliding block 52 is equipped with the 7th and is screwed on hole, and the side of the sliding rail 51 is also equipped with several eight and is screwed on
Hole, the described 7th be screwed on hole with the described 8th be screwed on hole be adapted, the sliding block 52 is fastened by bolts at the sliding rail 51；
First clamping seat 54 includes clamping seat main body and the first fixture block being welded on the left of the upper end of the clamping seat main body, institute
It is arc-shaped structure to state the first fixture block；Second clamping seat 55 is square structure, and the is equipped at second clamping seat 55
Three perforation, second fixture block 56 include fixture block main body and are welded in the screw rod on the right side of the fixture block main body, the screw rod
Outer wall be thread-like structure, the perforation of the screw rod and the third is adapted, and the fixture block main body is convex structure, described
The outside of screw rod is also screwed with fastening nut.
The operation principle of the present invention：Casting is positioned at fixed component by the present invention, is carried out to casting by the first fixture block
It pre-fixes, next moves the second fixture block to the left so that the fixture block main body of the second fixture block clamps casting, then by tight
Gu nut is fixed casting again, then is fastened sliding block and sliding rail by bolt；Make drill bit position by adjusting punching base
It in the upper end of the casting, then rotates rotating disc and so that punching base is fixed, next start first motor work and carry out
Boring work makes drill bit be lifted to drill finally by control driving motor.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (4)
1. a kind of semi-automatic drilling aperture apparatus, including pedestal (1), it is characterised in that：Further include being fastened by bolts in the pedestal
(1) lifting part (3), the sliding sleeve of supporting rack (2), the upper end for being set to support frame as described above (2) on the left of upper end are set to institute
It states the wellbore part (4) at supporting rack (2) and is slideably positioned on the right side of the upper end of the pedestal (1) and is located at the punching portion
The fixed component (5) of the lower end of part (4)；
The lifting part (3) includes the driving motor of mounting base (31) and the upper end for being set to the mounting base (31)
(32)；The mounting base (31) is set to the top of support frame as described above (2), and the upper end of the mounting base (31) is fastened by bolts
There is driving motor (31), the first perforation, the output of the driving motor (31) are equipped on the left of the upper end of the mounting base (31)
Shaft end passes through the first inside for perforating and extending to the mounting base (31), the output shaft end of the driving motor (31) to be connected with
The inside of first gear, the mounting base (31) is additionally provided with the second gear being meshed with the first gear, the mounting base
(31) be equipped with the second perforation on the right side of lower end, be provided with leading screw (33) at second perforation, the leading screw (33) with it is described
Second gear is connected；
The wellbore part (4) includes crossbeam (41), is slideably positioned at the crossbeam (41) punching base (42) is fixed on institute
The drill bit stated the first motor (43) of the lower end of punching base (42) and be connected with the output shaft end of the first motor (43)
(44)。
2. a kind of semi-automatic drilling aperture apparatus according to claim 1, it is characterised in that：On the left of the upper end of the pedestal (1)
Surface is equipped with several first and is screwed on hole, and the described first inner wall for being screwed on hole is thread-like structure, and several first are screwed on Kong Chengyuan
Shape structure distribution is in the upper end left-hand face of the pedestal (1)；Support frame as described above (2) includes pedestal (21) and is revolved by screw thread
It is connected to the support column (22) of the upper end of the pedestal (21), the pedestal (21) is round table-like, and the lower end of the pedestal (21) is also
It is welded with terminal pad, the intermediate position of the pedestal (21) is equipped with second and is screwed on hole, and the intermediate position of the terminal pad is worn
There is third to be screwed on hole, described second hole and the third hole that is screwed on that is screwed on is adapted, and described second hole that is screwed on is revolved with the third
The inner wall for connecing hole is thread-like structure, and the support column (22) is cylindric, and the lower part outer wall of the support column (22) is screw thread
Shape structure, the support column (22) with described second is screwed on hole and third is screwed on, and hole is adapted；It is worn in the surface of the terminal pad
It is screwed on hole equipped with several four, several four are screwed on the rounded structure distribution in hole in the surface of the terminal pad, the 4th rotation
It connects hole to be adapted with described first hole that is screwed on, the terminal pad is fastened by bolts on the left of the upper end in the pedestal (1).
3. a kind of semi-automatic drilling aperture apparatus according to claim 2, it is characterised in that：The crossbeam (41) includes crossbeam master
Body and be welded in the main body of cross-beam side beam arm, the main body of cross-beam be cylinder-like structure, the main body of cross-beam with
The support column (22) is adapted, and the side of the main body of cross-beam is also equipped with the 5th and is screwed on hole, and the described 5th is screwed on the interior of hole
Wall is thread-like structure, and the described 5th hole that is screwed on is screwed on the leading screw (33) screw thread；The front and rear surfaces middle part of the beam arm
Position is recessed with sliding slot；The punching base (42) is square structure, and the intermediate position of the punching base (42) is equipped with square hole,
The intermediate position of the square hole is also protruding with sliding part inwardly, and the sliding part is adapted with the sliding slot；The sliding slot
Lower end be also recessed with fixing groove, the 6th is also equipped at the punching base (42) and is screwed on hole, the described 6th hole that is screwed on passes through spiral shell
Line is screwed with threaded rod, and the outside of the threaded rod is also welded with rotating disc (45), and the threaded rod connects with the fixing groove
It touches；The lower end of the punching base (42) has been fastened by bolts first motor (43).
4. a kind of semi-automatic drilling aperture apparatus according to claim 1, it is characterised in that：The fixed component (5) includes two
Item be arranged in parallel in sliding rail (51) on the right side of the upper end of the pedestal (1), the upper end for being slideably positioned in the sliding rail (51) cunning
Block (52) is fastened by bolts the sliding panel (53) in the upper end of the sliding block (52), is fixed on the upper of the sliding panel (53)
Hold the first clamping seat (54), the second clamping seat (55) being fixed on the right side of the upper end of the sliding panel (53) and the grafting in left side
The second fixture block (56) at second clamping seat (55)；
The side of the sliding block (52) is equipped with the 7th and is screwed on hole, and the side of the sliding rail (51) is also equipped with several eight and is screwed on
Hole, the described 7th be screwed on hole with the described 8th be screwed on hole be adapted, the sliding block (52) is fastened by bolts in the sliding rail
(51) at；First clamping seat (54) include clamping seat main body and be welded on the left of the upper end of the clamping seat main body
One fixture block, first fixture block are arc-shaped structure；Second clamping seat (55) is square structure, second clamping seat
(55) third perforation is equipped at, second fixture block (56) includes fixture block main body and the right side for being welded in the fixture block main body
Screw rod, the outer wall of the screw rod is thread-like structure, and the screw rod is adapted with third perforation, and the fixture block main body is
The outside of convex structure, the screw rod is also screwed with fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810546675.4A CN108714705A (en) | 2018-05-31 | 2018-05-31 | A kind of semi-automatic drilling aperture apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810546675.4A CN108714705A (en) | 2018-05-31 | 2018-05-31 | A kind of semi-automatic drilling aperture apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108714705A true CN108714705A (en) | 2018-10-30 |
Family
ID=63911517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810546675.4A Pending CN108714705A (en) | 2018-05-31 | 2018-05-31 | A kind of semi-automatic drilling aperture apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108714705A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079184A (en) * | 2018-09-04 | 2018-12-25 | 嘉善伟悦紧固件有限公司 | A kind of semi-automatic drilling aperture apparatus |
| CN109435077A (en) * | 2018-12-11 | 2019-03-08 | 芜湖市泽川水利工程有限公司 | A kind of plate drilling equipment for hydraulic engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204524321U (en) * | 2015-03-27 | 2015-08-05 | 浙江三林五金制品有限公司 | A kind of perforating device |
| US20170001246A1 (en) * | 2015-07-02 | 2017-01-05 | Wen-Chi Chang | Position controlling device for a carpenter angle drill/ hollow chisel mortiser |
| CN107442804A (en) * | 2017-08-31 | 2017-12-08 | 嘉善蓝欣涂料有限公司 | A kind of sliding rig |
| CN107639256A (en) * | 2017-09-14 | 2018-01-30 | 嘉善惠龙金属制品有限公司 | A kind of Hardware fitting shaping device |
| CN107745268A (en) * | 2017-09-29 | 2018-03-02 | 宝鸡长达电气科技有限公司 | A kind of special multi-work piece machining drilling machine |
-
2018
- 2018-05-31 CN CN201810546675.4A patent/CN108714705A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204524321U (en) * | 2015-03-27 | 2015-08-05 | 浙江三林五金制品有限公司 | A kind of perforating device |
| US20170001246A1 (en) * | 2015-07-02 | 2017-01-05 | Wen-Chi Chang | Position controlling device for a carpenter angle drill/ hollow chisel mortiser |
| CN107442804A (en) * | 2017-08-31 | 2017-12-08 | 嘉善蓝欣涂料有限公司 | A kind of sliding rig |
| CN107639256A (en) * | 2017-09-14 | 2018-01-30 | 嘉善惠龙金属制品有限公司 | A kind of Hardware fitting shaping device |
| CN107745268A (en) * | 2017-09-29 | 2018-03-02 | 宝鸡长达电气科技有限公司 | A kind of special multi-work piece machining drilling machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079184A (en) * | 2018-09-04 | 2018-12-25 | 嘉善伟悦紧固件有限公司 | A kind of semi-automatic drilling aperture apparatus |
| CN109435077A (en) * | 2018-12-11 | 2019-03-08 | 芜湖市泽川水利工程有限公司 | A kind of plate drilling equipment for hydraulic engineering |
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Application publication date: 20181030 |
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