CN107116248A - A kind of axis body drilling equipment - Google Patents
A kind of axis body drilling equipment Download PDFInfo
- Publication number
- CN107116248A CN107116248A CN201710336922.3A CN201710336922A CN107116248A CN 107116248 A CN107116248 A CN 107116248A CN 201710336922 A CN201710336922 A CN 201710336922A CN 107116248 A CN107116248 A CN 107116248A
- Authority
- CN
- China
- Prior art keywords
- fixed
- cylinder
- axis body
- top plate
- bearing support
- 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
- 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
- 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
- B23Q3/10—Auxiliary devices, e.g. bolsters, extension members
- B23Q3/104—V-blocks
-
- 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
- B23Q7/10—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 by means of magazines
-
- 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 present invention provides a kind of axis body drilling equipment, belongs to machining technology field.It includes charging and discharging mechanism, hold-down mechanism, borehole drill construction, the feed bin of charging and discharging mechanism is arranged on the top of bearing support right-hand member, left end of the mounting of roof plate in top plate piston rod, positioning baffle, which can slide back and forth, to be arranged on the chute of bearing support left end, baffle plate piston rod connects positioning baffle, the supporting shaft of hold-down mechanism is rotatably provided on fixed journal stirrup, the lower end of connecting rod is fixed on supporting shaft, compressing cam, also bias is fixed on supporting shaft, the lower end of compression cylinder and the upper end of connecting rod are hinged, and the drill bit of borehole drill construction is arranged at the surface for being oriented to drill bushing.The present invention not only realizes automatic charging and the blanking of axis body, greatly reduces hand labor intensity, and realizes the continuous rapid drilling processing to axis body, and rational in infrastructure, good reliability, cost is low.
Description
Technical field
The present invention relates to machining technology field, more particularly to a kind of axis body drilling equipment.
Background technology
Machining refers to the process of be changed the appearance and size or performance of workpiece by a kind of plant equipment, by adding
Difference in work mode can be divided into machining and pressure processing.Processing need machinery by digital display milling machine, digital display form grinder,
Digital display lathe, electric discharge machine, grinding machine of universal, machining center, drilling machine, laser welding, fast wire winding, middle wire, slow wire feeding, peripheral milling
Bed, internal grinder, fine turning lathe etc..Machining refers to use cutting element（Including cutter, grinding tool and abrasive material）Blank or work
Unnecessary material layer is cut as chip on part, workpiece is obtained the processing side of defined geometry, size and surface quality
Method.Machining generally can be divided into：Turning, milling, drilling, boring, ream, planing, slotting, broaching, sawing, grinding, grinding,
Honing, microstoning, polishing, Gear Processing, spiral case making, screw thread process, Ultra-precision Turning, pincers worker and scraping etc..Drilling is
A kind of common machining mode, the at present main drilling realized using drill bit to workpiece.Axis body class workpiece usually need into
Row Drilling operation, but because axis body class Workpiece clamping is more difficult, cause the processing difficulties in boring procedure.It is common at present
Axis body class workpiece, which needs to be realized with special fixture, to be clamped, and this kind of clamp structure is complicated, and cost is high, and each clamping and release are all
It is cumbersome.And in production, each axis body needs manually to realize that feeding is changed, to realize the Continuous maching of axis body, processing
After the completion of, it is necessary to manually realize blanking, hand labor intensity is big, and security is poor.
The content of the invention
It is an object of the invention to provide a kind of axis body drilling equipment, automatic charging and the blanking of axis body are not only realized, significantly
Hand labor intensity is reduced, and realizes the continuous rapid drilling processing to axis body, rational in infrastructure, good reliability, cost is low.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of axis body drilling equipment, it includes bearing support, charging and discharging mechanism, hold-down mechanism, borehole drill construction, the bearing support
On be provided with horizontal V-shaped groove, three axis bodies join end to end and are placed on the V-shaped groove of bearing support, the charging and discharging mechanism bag
Feed bin, top plate, top plate cylinder, the first cylinder saddle, positioning baffle, baffle plate cylinder, the second cylinder saddle are included, the feed bin is set
In the top of bearing support right-hand member, first cylinder saddle is fixed on the right side of bearing support, and the top plate cylinder includes top
Plate cylinder body and top plate piston rod, the top plate cylinder body are fixed on the first cylinder saddle, and the mounting of roof plate is in top plate piston rod
Left end, the bearing support left end is provided with the chute of fore-and-aft direction, and the positioning baffle, which can slide back and forth, is arranged on supporting
On the chute of bearing left end, the baffle plate cylinder includes baffle plate cylinder body and baffle plate piston rod, and the baffle plate cylinder body is fixed on second
On cylinder saddle, the baffle plate piston rod connects positioning baffle, the hold-down mechanism include fixed support, compress cam, connecting rod,
Fixed journal stirrup, supporting shaft, compression cylinder, the 3rd cylinder saddle, the fixed support is fixed on bearing support, and is located at
The surface of leftmost side axis body, the fixed journal stirrup is arranged on fixed support, and the supporting shaft is rotatably provided in fixation
On journal stirrup, the lower end of the connecting rod is fixed on supporting shaft, and also bias is fixed on supporting shaft the compression cam, described
The upper end of compression cylinder is arranged on the 3rd cylinder saddle, and the lower end of the compression cylinder and the upper end of connecting rod are hinged, described to bore
Holes mechanism includes drill bit, is oriented to drill bushing, and the guiding drill bushing is fixed on fixed support, and positioned at the left side of fixed journal stirrup,
The drill bit is arranged at the surface for being oriented to drill bushing.
Further, the hold-down mechanism also includes travel switch, and the travel switch is located at the underface of compression cylinder.
Further, the positioning baffle is L-shaped.
Further, the compression cam is spiral of Archimedes cam.
The present invention compared to the prior art, with advantages below and effect：Charging and discharging mechanism is realized to the automatic of axis body
Feeding and blanking, hold-down mechanism realize the compression to axis body, and borehole drill construction realizes the Drilling operation to axis body.Top plate cylinder band
Dynamic top plate drives positioning baffle to travel forward to left movement, baffle plate cylinder, and axis body is realized in the presence of top plate and positioning baffle
Axially position, compression cylinder action, is driven by connecting rod and compresses cam clockwise oscillation, axis body is clamped.Compression cylinder to
Travel switch is triggered in lower motion process, drill bit fast rotation is simultaneously moved downward, the realization pair in the case where being oriented to the guide effect of drill bushing
The Drilling operation of axis body.Top plate cylinders retract, axis body is fallen from feed bin, on the V-shaped groove of bearing support, is followed into next
Ring.Positioning baffle is L-shaped, is conducive to continuous realize to position and stop, is conducive to the processing and blanking of axis body.Compress cam for Ah
Base Mead spiral line cam, makes it have self-locking performance when clamping axis body, improves clip stability.The present invention not only realizes axle
The automatic charging of body and blanking, greatly reduce hand labor intensity, and realize the continuous rapid drilling processing to axis body, knot
Rationally, good reliability, cost is low for structure.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is right view of the invention.
Fig. 3 is Fig. 1 of the present invention A-A direction views.
Fig. 4 is Fig. 1 of the present invention partial enlarged drawing B.
In figure：1. bearing support, 2. charging and discharging mechanisms, 3. hold-down mechanisms, 4. borehole drill constructions, 5.V shape grooves, 6. feed bins, 7.
Top plate, 8. top plate cylinders, 9. first cylinder saddles, 10. positioning baffles, 11. baffle plate cylinders, 12. second cylinder saddles, 13. tops
Plate cylinder body, 14. top plate piston rods, 15. baffle plate cylinder bodies, 16. baffle plate piston rods, 17. fixed supports, 18. compress cam, and 19. connect
Bar, 20. fixation journal stirrups, 21. supporting shafts, 22. compression cylinders, 23. the 3rd cylinder saddles, 24. drill bits, 25. are oriented to drill bushings,
26. travel switch, 27. axis bodies, 28. chutes.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, following examples are to this hair
Bright explanation and the invention is not limited in following examples.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of axis body drilling equipment, it include bearing support 1, charging and discharging mechanism 2,
Hold-down mechanism 3, borehole drill construction 4, charging and discharging mechanism 2 realize the automatic charging and blanking to axis body 27, and hold-down mechanism 3 is realized
To the compression of axis body 27, borehole drill construction 4 realizes the Drilling operation to axis body 27.Horizontal V-arrangement is provided with the bearing support 1
Groove 5, three axis bodies 27, which join end to end, to be placed on the V-shaped groove 5 of bearing support 1, and the charging and discharging mechanism 2 includes feed bin 6, top plate
7th, top plate cylinder 8, the first cylinder saddle 9, positioning baffle 10, baffle plate cylinder 11, the second cylinder saddle 12, the feed bin 6 are set
In the top of the right-hand member of bearing support 1, first cylinder saddle 9 is fixed on the right side of bearing support 1, and the top plate cylinder 8 is wrapped
Top plate cylinder body 13 and top plate piston rod 14 are included, the top plate cylinder body 13 is fixed on the first cylinder saddle 9, and the top plate 7 is installed
In the left end of top plate piston rod 14, the left end of bearing support 1 is provided with the chute 28 of fore-and-aft direction, and the positioning baffle 10 can
Slide back and forth and be arranged on the chute 28 of the left end of bearing support 1, the positioning baffle 10 is L-shaped, be conducive to continuous realize to position
And stop, be conducive to the processing and blanking of axis body 27.The baffle plate cylinder 11 includes baffle plate cylinder body 15 and baffle plate piston rod 16, institute
State baffle plate cylinder body 15 to be fixed on the second cylinder saddle 12, the baffle plate piston rod 16 connects positioning baffle 10.The compacting machine
Structure 3 includes fixed support 17, compresses cam 18, connecting rod 19, fixed journal stirrup 20, supporting shaft 21, compression cylinder 22, the 3rd cylinder
Bearing 23, the fixed support 17 is fixed on bearing support 1, and positioned at the surface of leftmost side axis body 27, the fixation
Journal stirrup 20 is arranged on fixed support 17, and the supporting shaft 21 is rotatably provided on fixed journal stirrup 20, the connecting rod 19
Lower end is fixed on supporting shaft 21, and also bias is fixed on supporting shaft 21 the compression cam 18, the compression cam 18
For spiral of Archimedes cam, make it that there is self-locking performance when clamping axis body 27, improve clip stability.The compression gas
The upper end of cylinder 22 is arranged on the 3rd cylinder saddle 23, and the lower end of the compression cylinder 22 and the upper end of connecting rod 19 are hinged, described
Hold-down mechanism 22 also includes travel switch 26, and the travel switch 26 is located at the underface of compression cylinder 22.The borehole drill construction 4
Including drill bit 24, drill bushing 25 is oriented to, the guiding drill bushing 25 is fixed on fixed support 17, and positioned at a left side for fixed journal stirrup 20
Side, the drill bit 24 is arranged at the surface for being oriented to drill bushing 25.
By above-mentioned technical proposal, a kind of axis body drilling equipment of the invention is in use, top plate cylinder 8 drives top plate 7 to the left
Motion, baffle plate cylinder 11 drives positioning baffle 10 to travel forward, and axis body 27 realizes axle in the presence of top plate 7 and positioning baffle 10
To positioning, compression cylinder 22 is acted, and is driven by connecting rod 19 and is compressed the clockwise oscillation of cam 18, axis body 27 is clamped.Compress gas
Cylinder 22 triggers travel switch 26 during moving downward, and the fast rotation of drill bit 24 is simultaneously moved downward, and is being oriented to leading for drill bushing 25
To the lower Drilling operation realized to axis body 27 of effect.Top plate cylinder 8 is retracted, and axis body 27 is fallen from feed bin 6, into bearing support 1
V-shaped groove 5 on, into next circulation.The present invention not only realizes automatic charging and the blanking of axis body 27, greatly reduces artificial
Labor intensity, and the continuous rapid drilling processing to axis body 27 is realized, rational in infrastructure, good reliability, cost is low.
Above content described in this specification is only illustration made for the present invention.Technology belonging to of the invention
The technical staff in field can make various modifications or supplement to described specific embodiment or use similar mode
Substitute, content without departing from description of the invention or surmount scope defined in the claims, this all should be belonged to
The protection domain of invention.
Claims (4)
1. a kind of axis body drilling equipment, it is characterised in that：It includes bearing support, charging and discharging mechanism, hold-down mechanism, drilling machine
Horizontal V-shaped groove is provided with structure, the bearing support, three axis bodies join end to end and are placed on the V-shaped groove of bearing support, institute
Stating charging and discharging mechanism includes feed bin, top plate, top plate cylinder, the first cylinder saddle, positioning baffle, baffle plate cylinder, the second cylinder branch
Seat, the feed bin is arranged on the top of bearing support right-hand member, and first cylinder saddle is fixed on the right side of bearing support, described
Top plate cylinder includes top plate cylinder body and top plate piston rod, and the top plate cylinder body is fixed on the first cylinder saddle, the top plate peace
Mounted in the left end of top plate piston rod, the bearing support left end is provided with the chute of fore-and-aft direction, and the positioning baffle can be front and rear
On the chute for being slidably arranged in bearing support left end, the baffle plate cylinder includes baffle plate cylinder body and baffle plate piston rod, the baffle plate
Cylinder body is fixed on the second cylinder saddle, and the baffle plate piston rod connects positioning baffle, the hold-down mechanism include fixed support,
Cam, connecting rod, fixed journal stirrup, supporting shaft, compression cylinder, the 3rd cylinder saddle are compressed, the fixed support is fixed on supporting
On bearing, and positioned at the surface of leftmost side axis body, the fixed journal stirrup is arranged on fixed support, and the supporting shaft can
It is rotatably arranged on fixed journal stirrup, the lower end of the connecting rod is fixed on supporting shaft, also bias is fixed on the compression cam
On supporting shaft, the upper end of the compression cylinder is arranged on the 3rd cylinder saddle, the lower end of the compression cylinder and connecting rod
Upper end is hinged, and the borehole drill construction includes drill bit, is oriented to drill bushing, and the guiding drill bushing is fixed on fixed support, and is located at
The left side of fixed journal stirrup, the drill bit is arranged at the surface for being oriented to drill bushing.
2. a kind of axis body drilling equipment according to claim 1, it is characterised in that：The hold-down mechanism is also opened including stroke
Close, the travel switch is located at the underface of compression cylinder.
3. a kind of axis body drilling equipment according to claim 1, it is characterised in that：The positioning baffle is L-shaped.
4. a kind of axis body drilling equipment according to claim 1, it is characterised in that：The compression cam is Archimedes's spiral shell
Spin line cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710336922.3A CN107116248A (en) | 2017-05-14 | 2017-05-14 | A kind of axis body drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710336922.3A CN107116248A (en) | 2017-05-14 | 2017-05-14 | A kind of axis body drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107116248A true CN107116248A (en) | 2017-09-01 |
Family
ID=59727105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710336922.3A Pending CN107116248A (en) | 2017-05-14 | 2017-05-14 | A kind of axis body drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107116248A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947037A (en) * | 2017-12-05 | 2018-04-20 | 中国神华能源股份有限公司 | Cable device for peeling |
| CN108356312A (en) * | 2018-02-28 | 2018-08-03 | 重庆荣爵科技有限公司 | Frame of motorcycle perforating device |
| CN108405922A (en) * | 2017-11-24 | 2018-08-17 | 遵化市永辉工程机械配件有限公司 | A kind of axial workpiece drill centres machine tool |
| CN112517968A (en) * | 2020-11-27 | 2021-03-19 | 四川航天长征装备制造有限公司 | Quick positioning circumferential drilling device and method for pull rod type parts on valve |
| CN112518618A (en) * | 2020-11-30 | 2021-03-19 | 广东鼎泰机器人科技有限公司 | Pressing and holding mechanism for milling cutter material rod |
| CN112846868A (en) * | 2020-11-30 | 2021-05-28 | 广东鼎泰机器人科技有限公司 | Multi-station milling cutter processing machine |
| CN113664600A (en) * | 2021-08-06 | 2021-11-19 | 贵州海澄科技有限公司 | Full-automatic pipeline processing device |
| CN116689826A (en) * | 2023-08-08 | 2023-09-05 | 兴化市新强龙不锈钢制品有限公司 | Stainless steel standard part drilling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1246464B (en) * | 1990-10-19 | 1994-11-18 | Sala Spa | MACHINE TOOL, WITH HEAD FOR THE GENERATION OF A LASER BEAM, FOR THE PROCESSING AND CUTTING OF TUBES. |
| US5442843A (en) * | 1993-02-01 | 1995-08-22 | Julius Blum Gesellschaft M.B.H. | Drilling machine for drilling holes in furniture parts |
| CN201871757U (en) * | 2010-11-30 | 2011-06-22 | 济南沃德汽车零部件有限公司 | Special drilling machine for valve tappet oil leakage holes |
| CN203210023U (en) * | 2013-03-19 | 2013-09-25 | 王越敏 | Jig for cylindrical workpiece |
| CN206981798U (en) * | 2017-05-14 | 2018-02-09 | 赵锋 | A kind of axis body drilling equipment |
-
2017
- 2017-05-14 CN CN201710336922.3A patent/CN107116248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1246464B (en) * | 1990-10-19 | 1994-11-18 | Sala Spa | MACHINE TOOL, WITH HEAD FOR THE GENERATION OF A LASER BEAM, FOR THE PROCESSING AND CUTTING OF TUBES. |
| US5442843A (en) * | 1993-02-01 | 1995-08-22 | Julius Blum Gesellschaft M.B.H. | Drilling machine for drilling holes in furniture parts |
| CN201871757U (en) * | 2010-11-30 | 2011-06-22 | 济南沃德汽车零部件有限公司 | Special drilling machine for valve tappet oil leakage holes |
| CN203210023U (en) * | 2013-03-19 | 2013-09-25 | 王越敏 | Jig for cylindrical workpiece |
| CN206981798U (en) * | 2017-05-14 | 2018-02-09 | 赵锋 | A kind of axis body drilling equipment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405922A (en) * | 2017-11-24 | 2018-08-17 | 遵化市永辉工程机械配件有限公司 | A kind of axial workpiece drill centres machine tool |
| CN107947037A (en) * | 2017-12-05 | 2018-04-20 | 中国神华能源股份有限公司 | Cable device for peeling |
| CN108356312A (en) * | 2018-02-28 | 2018-08-03 | 重庆荣爵科技有限公司 | Frame of motorcycle perforating device |
| CN112517968A (en) * | 2020-11-27 | 2021-03-19 | 四川航天长征装备制造有限公司 | Quick positioning circumferential drilling device and method for pull rod type parts on valve |
| CN112518618A (en) * | 2020-11-30 | 2021-03-19 | 广东鼎泰机器人科技有限公司 | Pressing and holding mechanism for milling cutter material rod |
| CN112846868A (en) * | 2020-11-30 | 2021-05-28 | 广东鼎泰机器人科技有限公司 | Multi-station milling cutter processing machine |
| CN113664600A (en) * | 2021-08-06 | 2021-11-19 | 贵州海澄科技有限公司 | Full-automatic pipeline processing device |
| CN116689826A (en) * | 2023-08-08 | 2023-09-05 | 兴化市新强龙不锈钢制品有限公司 | Stainless steel standard part drilling device |
| CN116689826B (en) * | 2023-08-08 | 2023-10-24 | 兴化市新强龙不锈钢制品有限公司 | Stainless steel standard part drilling device |
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Application publication date: 20170901 |