CN106180790A - The perforating device of large scale printed circuit board (PCB) - Google Patents
The perforating device of large scale printed circuit board (PCB) Download PDFInfo
- Publication number
- CN106180790A CN106180790A CN201610672730.5A CN201610672730A CN106180790A CN 106180790 A CN106180790 A CN 106180790A CN 201610672730 A CN201610672730 A CN 201610672730A CN 106180790 A CN106180790 A CN 106180790A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- column
- outfan
- mechanical arm
- stopper slot
- 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
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/26—Liftable or lowerable drill heads or headstocks; Balancing arrangements therefor
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses the perforating device of large scale printed circuit board (PCB), including frame, column, turning platform, at column top, cylinder is installed, mechanical arm is set on column, the outfan activity of cylinder runs through column epimere, cylinder outfan is provided with connecting rod, connecting rod is connected with mechanical arm after running through stopper slot, it is separately installed with travel switch in stopper slot upper end and lower end, travel switch is connected with described cylinder by controller, main axis is arranged on the robotic arm, in main shaft one end, drill bit is installed, the main shaft other end is provided with driven gear, motor output end is provided with driving gear, driving gear is connected with driven gear by belt.Cylinder outfan is when driving mechanical arm realizes moving up and down, and after once the bending part of cylinder outfan and the extreme position of stopper slot collide, cylinder receives the order of controller just to be stopped stretching, and then avoids drill bit to move at the excessive of vertical direction.
Description
Technical field
The present invention relates to the processing and manufacturing of wiring board, specifically refer to the perforating device of large scale printed circuit board (PCB).
Background technology
Along with the continuous progress of science and technology, circuit board product surface quality requirements is strict, in order in response to above-mentioned circuit all the more
Panel products quality requirements, it is necessary to ensure that when circuit boring circuit board surface, without scratch, does not damage the conductive layer of circuit surface,
Foregoing circuit plate processor, is positioned over circuit board on workbench, has the drilling tool circuit to disposing and above workbench
Plate is holed, and owing to circuit board surface material is softer, and surrounding has and produces the phenomenon tilted, mechanically direct contact electricity
Plate face, road, is easily caused the vestige of circuit board surface scratch and destroys the conductive coating structure of circuit board surface, in turn resulting in circuit
The disappearance that plate is scrapped.
Summary of the invention
It is an object of the invention to provide the perforating device of large scale printed circuit board (PCB), quickly realize printed circuit board (PCB)
Drilling operating, reduces circuit board damage rate in the course of processing.
The purpose of the present invention is achieved through the following technical solutions:
The perforating device of large scale printed circuit board (PCB), including frame and rack-mounted column, turning platform, at described machine
Frame upper wall has dovetail groove, and turning platform is arranged in dovetail groove, on described turning platform by the tab slides arranged bottom it
Being provided with slide rail orthogonal with dovetail groove, clamping device is slidably arranged on turning platform by slide rail, on described column top
Portion is provided with cylinder, has stopper slot in the middle part of column, and mechanical arm is set on column, and the outfan activity of described cylinder runs through
Column epimere, is provided with connecting rod on cylinder outfan, and connecting rod is connected with mechanical arm after running through stopper slot, described spacing
Groove upper end and lower end are separately installed with travel switch, and described travel switch is connected with described cylinder, at machinery by controller
Being provided with motor on arm, main axis is arranged on the robotic arm, is provided with drill bit in described main shaft one end, and the main shaft other end is installed
There are driven gear, motor output end that driving gear is installed, and described driving gear is connected with driven gear by belt；Institute
Stating and be provided with the blind hole connected with stopper slot inside column, blind via bottom is provided with the buffer stopper of elastomeric material, and described
The circumference of buffer stopper is provided with cutting line groove of multiple annular；Described clamping device includes the U-board being slidably arranged on slide rail, even
Bar is connected with fixture block after running through the vertical portion of described U-board, and spring housing is located on connecting rod and is placed in U-board vertical portion and fixture block side
Between wall, it is provided with rectangular aperture at described fixture block away from the bottom surface of the end, one end of spring, and on the horizontal part of described U-board
Wall is provided with multiple relief hole.
During use, circuit board to be processed is put into U-board, by mobile turning platform and U-board X to and Y-direction
On position so that circuit board is in suitable processing stations, the most manually promotes connecting rod to make circuit board at fixture block with spacing
Fastened between plate, started cylinder, and then driving mechanical arm is started to enter circuit board along the axial downward movement of column, i.e. drill bit
Row boring.Owing to boring number is more, and position distribution is uneven, and traditional bore process relies primarily on artificial hand-held rig
Carrying out, and inventor is by utilizing the penetration capacity of drill bit, being superimposed by multilayer circuit boards half-finished product is placed in clamping device
On, after gripping, drill bit carry out creeping into realize multiple circuit boards and process simultaneously, substantially increase drilling efficiency.
Further, owing to the thickness of circuit board is less, even if after multiple circuit boards stack, the displacement that drill bit creeps into is the most relatively
Little, it is easy to cause drill bit direct and clamping device generation hard contact in the boring completing circuit board, and then cause drill bit
And the damage of clamping device；For this problem, the inside of column is set to hollow by inventor, and has on column with vertical
The stopper slot of the internal connection of post, the outfan of cylinder along column axially penetrate through column after, the connecting rod on cylinder outfan is passed through
Be connected with mechanical arm after wearing stopper slot, on the end face of two ends up and down of stopper slot, travel switch be installed simultaneously, i.e. cylinder output
Holding when driving mechanical arm realizes moving up and down, once the bending part of cylinder outfan touches with the extreme position of stopper slot
After hitting, cylinder receives the order of controller just to be stopped stretching, and then avoids drill bit to move at the excessive of vertical direction, to reduce
Clamping device and the damage of drill bit self.
Wherein, under column, intrasegmental part has blind hole, and is provided with buffer stopper in blind hole, simultaneously along the circumference of buffer stopper
Have cutting line groove of multiple annular, when cylinder outfan moves freely in column, the hypomere meeting of cylinder outfan and column
Internal producing is impacted, and then makes cylinder body be subject to serious impact to cause impaired, and blind hole is as column interior hollow section
Extension, its internal diameter matches with the diameter of cylinder outfan end, i.e. in cylinder outfan folding process, cylinder outfan
End directly contact with the buffer stopper in blind hole, until connecting rod contacts with the travel switch on stopper slot lower end, with this lead to
Cross the deformation recovery ability of the buffer stopper self of elastic material, the movement tendency that cylinder outfan end continues to move down can be supported
Disappear, reduce the interaction between column and cylinder with this, i.e. avoid the mutual impact between cylinder and column, it is ensured that cylinder
Service life.Further, the circumference at buffer stopper has cutting line groove of multiple annular, it is possible to ensure that buffer stopper is after stress and deformation
Quick-return, the impact that buffer stopper is caused by the applied stress that reduction buffer stopper inside mutually extrudes and produces, it is to avoid buffer stopper
The ability replying deformation is forever lost after deformation.
And when creeping into, fixture block is provided with the opening of rectangle away from the bottom surface, end, one end of spring, single or multiple
The two ends of circuit board are limited between opening and U-board in the grasping part formed respectively, simultaneously in fixture block sidewall and U-board
Vertical portion between spring is installed, i.e. can guarantee that circuit board place or add man-hour, between circuit board and fixture block, limiting plate
Contact become flexible contact from hard contact, and when the applied stress that circuit board is passed over by the external world, by its two ends
Spring and elastic protrusion respectively applied stress is eliminated, it is achieved the stable processing of circuit board, reduce circuit in boring procedure
There is damage because local action stress concentrates in the corner parts of plate, it is provided that the processing quality of circuit board.Further, at U-shaped
Multiple relief hole is had so that drill bit keeps one section due to inertia reason after running through circuit board on the horizontal part upper surface of plate
Lasting rotation in time is carried out in relief hole, to avoid drill bit directly to contact with U-board and the most impaired, extends drill bit
Service life.
Having cross-hole in described column epimere, cylinder outfan activity runs through after described cross-hole to downward
Stretching, the extension of cylinder outfan is by being connected through stopper slot with mechanical arm after bending.Column section thereon offers cross section
For the hole of standard geometrical shapes, i.e. cross-hole, and the local of cylinder outfan and this cross-hole adapt so that column exists
Meet while cylinder outfan moves up and down normally, it is to avoid when boring, mechanical arm produces radially because of applied stress
Swing, to improve the borehole accuracy of drill bit.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the inside of column is set to hollow by the present invention, and has on column and the stopper slot connected inside column, cylinder
Outfan along column axially penetrate through column after, through bending run through stopper slot again after is connected with mechanical arm, while spacing
Being provided with travel switch on the end face of two ends up and down of groove, i.e. cylinder outfan is when driving mechanical arm realizes moving up and down, once
After the bending part of cylinder outfan and the extreme position of stopper slot collide, cylinder receives the order of controller just to be stopped
Flexible, and then avoid drill bit to move at the excessive of vertical direction, to reduce clamping device and the damage of drill bit self；
2, column of the present invention section thereon offers the hole that cross section is standard geometrical shapes, i.e. cross-hole, and cylinder outfan
Local adapt with this cross-hole so that column is meeting while cylinder outfan moves up and down normally, it is to avoid
During boring, mechanical arm produces swing radially because of applied stress, to improve the borehole accuracy of drill bit.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of column；
Fig. 3 is the structural representation of clamping device.
Labelling and corresponding parts title in accompanying drawing:
1-frame, 2-turning platform, 3-slide rail, 4-clamping device, 41-U shape plate, 42-spring, 43-connecting rod, 44-fixture block, 45-open
Mouth, 46-relief hole, 5-drill bit, 6-main shaft, 7-mechanical arm, 8-motor, 9-cylinder, 10-column, 101-stopper slot, 102-stroke
Switch, 103-cross-hole, 104-blind hole, 105-buffer stopper, 106-cut line groove.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in Fig. 1 ~ Fig. 3, the present embodiment includes frame 1 and the column 10 being arranged in frame 1, turning platform 2, at described machine
Frame 1 upper wall has dovetail groove, and turning platform 2 is arranged in dovetail groove, at described turning platform 2 by the tab slides arranged bottom it
On slide rail 3 orthogonal with dovetail groove be installed, clamping device 4 is slidably arranged on turning platform 2, described by slide rail 3
Column 10 top is provided with cylinder 9, has stopper slot 101 in the middle part of column 10, and mechanical arm 7 is set on column 10, and described gas
The outfan activity of cylinder 9 runs through column 10 epimere, is provided with connecting rod on cylinder outfan, and connecting rod runs through stopper slot 101
It is connected with mechanical arm 7 afterwards, is separately installed with travel switch 102, described travel switch in described stopper slot 101 upper end and lower end
102 are connected with described cylinder 9 by controller, are provided with motor 8 on mechanical arm 7, and main shaft 6 rotates and is arranged on mechanical arm 7,
Being provided with drill bit 5 in described main shaft 6 one end, main shaft 6 other end is provided with driven gear, and motor 8 outfan is provided with driving tooth
Take turns, and described driving gear is connected with driven gear by belt；It is provided with inside described column 10 and to connect with stopper slot 101
Blind hole 103, is provided with the buffer stopper 105 of elastomeric material, and sets in the circumference of described buffer stopper 105 bottom blind hole 103
Have multiple annular cuts line groove 106；Described clamping device 4 includes the U-board 41 being slidably arranged on slide rail 3, and connecting rod 43 runs through
Being connected with fixture block 44 behind the vertical portion of described U-board 41, spring 42 is set on connecting rod 43 and is placed in U-board 41 vertical portion and card
Between block 44 sidewall, it is provided with rectangular aperture 45 at described fixture block 44 away from the bottom surface of the end, one end of spring 42, and at described U-shaped
The horizontal part upper wall of plate 41 is provided with multiple relief hole 46.
During use, circuit board to be processed is put into U-board 41, by mobile turning platform 2 and U-board 41 X to
With the position in Y-direction so that circuit board is in suitable processing stations, connecting rod 43 is the most manually promoted to make circuit board at fixture block
Fastened between 44 and limiting plate, start cylinder 9, and then driving mechanical arm 7 is along the axial downward movement of column 10, i.e. drill bit 5
Start circuit board is holed.Owing to boring number is more, and position distribution is uneven, and traditional bore process relies primarily on people
Work hand held drilling equipment is carried out, and inventor is by utilizing the penetration capacity of drill bit 5, and multilayer circuit boards half-finished product is superimposed upon one
Rising, multilayer circuit board is fixed on clamping device 4 by profit, and then realizes multiple circuit boards and process simultaneously, substantially increasing boring effect
Rate；Further, owing to the thickness of circuit board is less, even if after multiple circuit boards stack, the displacement that drill bit 5 creeps into is still
Less, it is easy to cause drill bit 5 in the boring completing circuit board directly and clamping device 4 occurs hard contact, and then cause
Drill bit 5 and the damage of clamping device 4；For this problem, the inside of column 10 is set to hollow by inventor, and at column 10
On have and the internal stopper slot 101 connected of column 10, the outfan of cylinder 9 along column 10 axially penetrate through column 10 after, gas
Connecting rod on cylinder 9 outfan is connected with mechanical arm 7 after running through stopper slot 101, simultaneously at the two ends end face up and down of stopper slot 101
On be provided with travel switch 102, i.e. cylinder 9 outfan driving mechanical arm 7 realize move up and down time, once cylinder 9 outfan
The extreme position of bending part and stopper slot 101 collide after, cylinder 9 receives the order of controller just to be stopped stretching,
And then avoid drill bit 5 to move at the excessive of vertical direction, to reduce clamping device 4 and the damage of drill bit 5 self.
Wherein, have blind hole 104 at 10 times intrasegmental parts of column, and buffer stopper 105, simultaneously edge are installed in blind hole 104
The circumference of buffer stopper 105 has 106, when cylinder 9 outfan moves freely in column 10, cylinder of cutting line groove of multiple annular
The hypomere of 9 outfans internal with column 10 can produce impact, and then makes cylinder 9 body be caused impaired by serious impact,
Blind hole 104 matches with the diameter of cylinder 9 outfan end as the extension of column 10 interior hollow section, its internal diameter, i.e. exists
In cylinder 9 outfan folding process, the end that cylinder defeated 9 goes out end directly contacts with the buffer stopper 105 in blind hole, until connecting rod
Contact with the travel switch 102 on stopper slot 101 lower end, with this by the deformation recovery of the buffer stopper 105 self of elastic material
Ability, the movement tendency that can continue cylinder 9 outfan end to move down is offset, and reduces between column 10 and cylinder 9 with this
Interact, i.e. avoid the mutual impact between cylinder 9 and column 10, it is ensured that the service life of cylinder 9.Further, at buffer stopper
What the circumference of 105 had multiple annular cuts line groove 106, it is possible to ensures buffer stopper 10 Quick-return after stress and deformation, reduces slow
The impact that buffer stopper 105 is caused by the applied stress rushing the internal mutually extruding of block 105 and produce, it is to avoid buffer stopper 105 is in deformation
The most forever lose the ability replying deformation.
And when creeping into, fixture block 44 is provided with the opening 45 of rectangle away from the bottom surface, end, one end of spring 42, single or
It is that the two ends of multiple circuit board are limited between opening 45 and U-board 41 in the grasping part formed, respectively simultaneously at fixture block
Spring 42 is installed between the vertical portion of 44 sidewalls and U-board 41, i.e. can guarantee that and place at circuit board or add man-hour, circuit board
Become flexible contact with contacting between fixture block 44, limiting plate from hard contact, and be subject to the external world to pass at circuit board
During applied stress, the spring 42 at its two ends respectively applied stress is eliminated with elastic protrusion, it is achieved the stable processing of circuit board,
Reduce the corner parts of circuit board in boring procedure and damage occurs because local action stress concentrates, it is provided that the processing of circuit board
Quality.Further, the horizontal part upper surface of U-board 41 has multiple relief hole 46 so that drill bit 5 is running through circuit board
After keep the lasting rotation in a period of time to carry out in relief hole 46, to avoid drill bit 5 and U-board 41 due to inertia reason
Directly contact and the most impaired, extend drill bit 5 service life.
Cross-hole 103 is had, after cylinder 9 outfan activity runs through described cross-hole 103 in described column epimere
Downwardly extending, the extension of cylinder 9 outfan is by being connected through stopper slot 101 with mechanical arm 7 after bending.Column 10 is thereon
Section offers the hole that cross section is standard geometrical shapes, i.e. cross-hole 103, and the local of cylinder 9 outfan and this cross-hole
103 adapt so that column 10 is meeting while cylinder 9 outfan moves up and down normally, it is to avoid the mechanical arm 7 when boring
Swing radially is produced, to improve the borehole accuracy of drill bit 5 because of applied stress.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (2)
1. the perforating device of large scale printed circuit board (PCB), the column (10) including frame (1) and being arranged in frame (1), turn
To platform (2), having dovetail groove at described frame (1) upper wall, turning platform (2) is arranged on swallow by the tab slides arranged bottom it
In stern notch, it is characterised in that: slide rail orthogonal with dovetail groove (3), clamping device are installed on described turning platform (2)
(4) it is slidably arranged on turning platform (2) by slide rail (3), cylinder (9), column (10) are installed at described column (10) top
Middle part has stopper slot (101), and mechanical arm (7) is set on column (10), and the outfan activity of described cylinder (9) runs through vertical
Post (10) epimere, is provided with connecting rod on cylinder (9) outfan, and connecting rod runs through stopper slot (101) afterwards with mechanical arm (7) even
Connecing, be separately installed with travel switch (102) in described stopper slot (101) upper end and lower end, described travel switch (102) passes through
Controller is connected with described cylinder (9), and the outfan upper end of described cylinder (9) connects, and is provided with motor on mechanical arm (7)
(8), main shaft (6) rotates and is arranged on mechanical arm (7), is provided with drill bit (5), main shaft (6) other end in described main shaft (6) one end
Being provided with driven gear, motor (8) outfan is provided with driving gear, and described driving gear is by belt with driven gear even
Connect；In the internal blind hole (103) connected with stopper slot (101) that is provided with of described column (10), blind hole (103) bottom is provided with elasticity
The buffer stopper (105) of quality of rubber materials, and in the circumference of described buffer stopper (105), it is provided with cut line groove (106) of multiple annular；Institute
Stating the U-board (41) that clamping device (4) includes being slidably arranged on slide rail (3), connecting rod (43) runs through the perpendicular of described U-board (41)
Being connected with fixture block (44) behind straight portion, spring (42) is set in connecting rod (43) and above and is placed in U-board (41) vertical portion and fixture block (44)
Between sidewall, it is provided with rectangular aperture (45) at described fixture block (44) away from the bottom surface of the end, one end of spring, and in described U-board
(41) horizontal part upper wall is provided with multiple relief hole (46).
The perforating device of large scale printed circuit board (PCB) the most according to claim 1, it is characterised in that: in described column (10)
Having cross-hole (103) in epimere, cylinder (9) outfan activity downwardly extends after running through described cross-hole (103), cylinder
(9) extension of outfan is by being connected through stopper slot (101) with mechanical arm (7) after bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672730.5A CN106180790A (en) | 2016-08-16 | 2016-08-16 | The perforating device of large scale printed circuit board (PCB) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672730.5A CN106180790A (en) | 2016-08-16 | 2016-08-16 | The perforating device of large scale printed circuit board (PCB) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106180790A true CN106180790A (en) | 2016-12-07 |
Family
ID=57522597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610672730.5A Pending CN106180790A (en) | 2016-08-16 | 2016-08-16 | The perforating device of large scale printed circuit board (PCB) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106180790A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737282A (en) * | 2016-12-20 | 2017-05-31 | 合肥意繁机电科技有限公司 | A kind of wooden artistic furniture processed clip |
| CN107671570A (en) * | 2017-10-30 | 2018-02-09 | 周言鑫 | A kind of pcb board production Digit Control Machine Tool with holding function |
| CN109079180A (en) * | 2018-07-11 | 2018-12-25 | 河南蒲瑞精密机械有限公司 | A kind of drilling equipment |
| CN111112671A (en) * | 2020-02-13 | 2020-05-08 | 王志奇 | Multifunctional drilling machine equipment |
| CN113211091A (en) * | 2020-12-28 | 2021-08-06 | 浙江特利隆精密机械有限公司 | Belt pulley reason material honing all-in-one that punches |
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| CN204160578U (en) * | 2014-10-24 | 2015-02-18 | 浙江博泰家具有限公司 | A kind of block machine of Furniture panel |
| CN205057311U (en) * | 2015-09-18 | 2016-03-02 | 重庆营志电子有限公司 | Printed circuit board laser drilling machine |
| CN205949895U (en) * | 2016-08-16 | 2017-02-15 | 成都俱进科技有限公司 | A drilling tool for jumbo size printed circuit board |
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| DE3107396A1 (en) * | 1981-02-27 | 1982-10-21 | Bernhard 6259 Brechen Eisenbach | Drilling and milling machine for machining window-frame sectional bars |
| WO1982003032A1 (en) * | 1981-03-07 | 1982-09-16 | Hiroyasu Minoru | Method and machine tool for machining valve seat surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737282A (en) * | 2016-12-20 | 2017-05-31 | 合肥意繁机电科技有限公司 | A kind of wooden artistic furniture processed clip |
| CN107671570A (en) * | 2017-10-30 | 2018-02-09 | 周言鑫 | A kind of pcb board production Digit Control Machine Tool with holding function |
| CN109079180A (en) * | 2018-07-11 | 2018-12-25 | 河南蒲瑞精密机械有限公司 | A kind of drilling equipment |
| CN111112671A (en) * | 2020-02-13 | 2020-05-08 | 王志奇 | Multifunctional drilling machine equipment |
| CN113211091A (en) * | 2020-12-28 | 2021-08-06 | 浙江特利隆精密机械有限公司 | Belt pulley reason material honing all-in-one that punches |
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Application publication date: 20161207 |