CN108655808A - A kind of intelligent large cattle-head machining tool high-efficiency cooling device - Google Patents
A kind of intelligent large cattle-head machining tool high-efficiency cooling device Download PDFInfo
- Publication number
- CN108655808A CN108655808A CN201810478209.7A CN201810478209A CN108655808A CN 108655808 A CN108655808 A CN 108655808A CN 201810478209 A CN201810478209 A CN 201810478209A CN 108655808 A CN108655808 A CN 108655808A
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- Prior art keywords
- machine body
- cooling component
- baffle
- hole
- connect
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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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of intelligent large cattle-head machining tool high-efficiency cooling devices, including machine body, support base, chamber door, control cabinet, depositing dust cooling component, radiating and cooling component, orifice union and baffle, the inside of the machine body is equipped with radiating and cooling component, the depositing dust cooling component is mounted on the inside of machine body, and depositing dust cooling component is connect with radiating and cooling component, is connected by the bottom interior wall of baffle and machine body at the top inner wall center of the machine body；The radiating and cooling component includes water tank, heat emission hole, three hole connecting pins, collecting plate, return duct, the first connecting tube, the second connecting tube, semiconductor chilling plate and the second water pump；The device is conducive to high efficiency and heat radiation cooling；Be conducive to adhere to waste residue and cooled, prevent waste residue from scorching machine body, while being conducive to the recycling of coolant liquid；The flow velocity for advantageously reducing depositing dust sprinkling coolant liquid ensures that coolant liquid can enter in return duct.
Description
Technical field
The present invention relates to lathe cooling system technical field, specially a kind of intelligent large cattle-head machining tool is with efficiently
Heat sink.
Background technology
Cattle-head machining tool is very common in field of industrial machinery, is widely used in the plane Milling Machining of workpiece.By
Amount of heat is will produce in lathe work, can use and arrive heat sink.
But the heat sink of existing cattle-head machining tool has the following defects：Radiating and cooling inefficiency；It is unfavorable
In being adhered to and being cooled to waste residue, the event that waste residue scorches lathe is caused to occur, while being unfavorable for the recycling of coolant liquid；
When cooling and depositing dust are flowed out by same pipeline, it cannot be guaranteed that coolant liquid can enter in return duct, cool down；For
This defect, so it is necessary that we, which design a kind of intelligent large cattle-head machining tool with high-efficiency cooling device,.
Invention content
The purpose of the present invention is to provide a kind of intelligent large cattle-head machining tool high-efficiency cooling devices, in solution
State the problem of being proposed in background technology.
In order to solve the above technical problem, the present invention provides following technical solutions：A kind of intelligent large cattle-head processing machine
Bed high-efficiency cooling device, including machine body, support base, chamber door, control cabinet, depositing dust cooling component, radiating and cooling component, section
Component and baffle are flowed, the inside of the machine body is equipped with radiating and cooling component, and the depositing dust cooling component is mounted on lathe
The inside of ontology, and depositing dust cooling component is connect with radiating and cooling component, is passed through at the top inner wall center of the machine body
The bottom interior wall of baffle and machine body connects；
The radiating and cooling component include water tank, heat emission hole, three hole connecting pins, collecting plate, return duct, the first connecting tube,
Second connecting tube, semiconductor chilling plate and the second water pump, the water tank are fixed by welding in the bottom interior wall of machine body, institute
The top side for stating machine body has the second connecting tube, and the other end of the second connecting tube and the second water pump one by flanged joint
Side connects, and the other side of second water pump is connect by the first connecting tube with three hole connecting pins, the side of the machine body
Inner wall is equidistant to be equipped with several collecting plates, and the top of three hole connecting pin passes through collecting plate and water tank top by return duct
Side connection is measured in portion, and the inner wall of first connecting tube is fitted with semiconductor chilling plate, and the side of the machine body offers
Heat emission hole；
Depositing dust cooling component include filter screen, through-hole, sewage draining exit, rubber stopper, nozzle, outlet tube, sponge, first into
Liquid pipe, the first water pump and the second inlet tube, the top of the machine body is equidistant to offer several through-holes, the baffle
Side is connect by filter screen with machine body side inner wall, and the side of the baffle, which is located at filter screen top position, to be equipped with
Nozzle, and the side of nozzle is connect across baffle with three hole connecting pin sides by outlet tube, the outside socket of the outlet tube
There are orifice union, the side of the baffle to be located at filter screen lower position and be fitted with sponge, the side of the water tank passes through method
Orchid is fixed with the second inlet tube, and the other end of the second inlet tube is connect with the first water pump side, first water pump it is another
Side is fixed with the first inlet tube by flange, and the other end of the first inlet tube passes through baffle and sponge unicom, the lathe sheet
The bottom side of body offers sewage draining exit, and sewage draining exit is internally provided with rubber stopper；
The orifice union includes annular fixing sleeve, sliding slot, partition board, spout hole and resetting spring, the annular fixing sleeve
It being socketed in the outside of outlet tube, and the inner wall of annular fixing sleeve offers sliding slot, the inner wall of the sliding slot is connected by partition board, and
The side of partition board offers spout hole, and the side opposite ends of the partition board are connect by resetting spring with sliding slot side.
Further, the bottom surrounding of the machine body is welded with support base, and the side of machine body is logical
It crosses articulate and is connected with chamber door, the side of the machine body is equipped with control cabinet.
Further, the distance of the collecting plate between any two is 10cm.
Further, the distance of the through-hole between any two is 5cm.
Further, the nozzle is connect by screw with baffle.
Compared with prior art, the advantageous effect of the invention reached is：
1. the second water pump is extracted out the coolant liquid in water tank by the second connecting tube, by the semiconductor in the first connecting tube
Cooling piece freezes, then is separately flowed into return duct and outlet tube by three hole connecting pins, and collecting plate will be inside machine body
Heat absorbed, since return duct passes through collecting plate, the coolant liquid after freezing in return duct carries out heat dissipation drop to collecting plate
Temperature is conducive to auxiliary heat dissipation cooling due to the setting of heat emission hole, which is conducive to high efficiency and heat radiation cooling；
2. waste residue drops into the inside of machine body by through-hole, coolant liquid is entered by three hole connecting pins in outlet tube,
Coolant liquid in outlet tube is sprayed by nozzle, and waste residue is after filter screen filtration, and small waste residue is fallen into below filter screen, the first water
Pump is again extracted out the coolant liquid to cool down to waste residue by the first inlet tube, is returned in water tank using the second inlet tube, sponge
Setting, is conducive to prevent waste residue from being sucked by the first connecting tube, opens rubber stopper, and waste residue can be discharged by sewage draining exit, which has
It conducive to being adhered to and being cooled to waste residue, prevents waste residue from scorching machine body, while being conducive to the recycling of coolant liquid；
3. coolant liquid is flowed by outlet tube inside annular fixing sleeve, part coolant liquid passes through the spout hole stream on partition board
Go out, due to the blocking of partition board, cooling liquid speed reduces, makes the slowly accumulation of coolant liquid, carry out extruding movement to partition board, make reset
Spring stress stretches, and since the elastic force of resetting spring acts on, to coolant liquid by opposition, coolant liquid is contributed to pass through overflow
Hole is flowed out, the process, advantageously reduces the flow velocity of depositing dust sprinkling coolant liquid, ensures that coolant liquid can enter in return duct.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the whole front view of the present invention；
Fig. 2 is the whole interior structural schematic diagram of the present invention；
Fig. 3 is the whole interior structural schematic diagram of the present invention；
Fig. 4 is the first connecting tube internal structure schematic diagram of the present invention；
Fig. 5 is the orifice union structural schematic diagram of the present invention；
In figure：1, machine body；2, support base；3, chamber door；4, control cabinet；5, depositing dust cooling component；51, filter screen；52、
Through-hole；53, sewage draining exit；54, rubber stopper；55, nozzle；56, outlet tube；57, sponge；58, the first inlet tube；59, the first water pump；
510, the second inlet tube；6, radiating and cooling component；61, water tank；62, heat emission hole；63, three hole connecting pin；64, collecting plate；65, it returns
Flow tube；66, the first connecting tube；67, the second connecting tube；68, semiconductor chilling plate；69, the second water pump；7, orifice union；71, ring
Shape fixing sleeve；72, sliding slot；73, partition board；74, spout hole；75, resetting spring；8, baffle.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of intelligent large cattle-head machining tool efficiently drop
Warm device, including machine body 1, support base 2, chamber door 3, control cabinet 4, depositing dust cooling component 5, radiating and cooling component 6, throttling group
The inside of part 7 and baffle 8, machine body 1 is equipped with radiating and cooling component 6, and depositing dust cools down component 5 mounted on machine body 1
Inside, and depositing dust cooling component 5 is connect with radiating and cooling component 6, at the top inner wall center of machine body 1 by baffle 8 and
The bottom interior wall of machine body 1 connects；
Radiating and cooling component 6 includes water tank 61, heat emission hole 62, three hole connecting pins 63, collecting plate 64, return duct 65, first
Connecting tube 66, the second connecting tube 67, semiconductor chilling plate 68 and the second water pump 69, water tank 61 are fixed by welding in machine body
The top side of 1 bottom interior wall, machine body 1 has the second connecting tube 67 by flanged joint, and the second connecting tube 67 is another
One end is connect with 69 side of the second water pump, and the other side of the second water pump 69 is connected by the first connecting tube 66 and three hole connecting pins 63
It connects, the side inner wall of machine body 1 is equidistant to be equipped with several collecting plates 64, and the top of three hole connecting pins 63 passes through return duct
65 pass through collecting plate 64 to be connect with 61 top amount side of water tank, and the inner wall of the first connecting tube 66 is fitted with semiconductor chilling plate 68,
The side of machine body 1 offers heat emission hole 62, is conducive to high efficiency and heat radiation cooling；
Depositing dust cooling component 5 includes filter screen 51, through-hole 52, sewage draining exit 53, rubber stopper 54, nozzle 55, outlet tube 56, sea
Continuous 57, first inlet tube 58, the first water pump 59 and the second inlet tube 510, the top of machine body 1 is equidistant to offer several
The side of through-hole 52, baffle 8 is connect by filter screen 51 with 1 side inner wall of machine body, and the side of baffle 8 is located at filter screen 51
Nozzle 55 is installed, and the side of nozzle 55 passes through 63 side of baffle 8 and three hole connecting pins by outlet tube 56 at top position
Connection, the outside of outlet tube 56 are socketed with orifice union 7, and the side of baffle 8 is located at 51 lower position of filter screen and is fitted with sea
Silk floss 57, the side of water tank 61 is fixed with the second inlet tube 510, and the other end and the first water of the second inlet tube 510 by flange
The connection of 59 sides is pumped, the other side of the first water pump 59 is fixed with the first inlet tube 58 by flange, and the first inlet tube 58 is another
One end passes through baffle 8 and 57 unicom of sponge, the bottom side of machine body 1 to offer sewage draining exit 53, and the inside of sewage draining exit 53
It is provided with rubber stopper 54, is conducive to adhere to waste residue and cooled down；
Orifice union 7 includes annular fixing sleeve 71, sliding slot 72, partition board 73, spout hole 74 and resetting spring 75, and annular is fixed
Outsides that set 71 is socketed in outlet tube 56, and the inner wall of annular fixing sleeve 71 offers sliding slot 72, the inner wall of sliding slot 72 by every
Plate 73 connects, and the side of partition board 73 offers spout hole 74, the side opposite ends of partition board 73 by resetting spring 75 with
72 side of sliding slot connects, and advantageously reduces the flow velocity of depositing dust sprinkling coolant liquid, ensures that coolant liquid can enter in return duct 65.
Further, the bottom surrounding of machine body 1 is welded with support base 2, and the side of machine body 1 passes through
Articulate is connected with chamber door 3, and the side of machine body 1 is equipped with control cabinet 4, is conducive to support.
Further, the distance of collecting plate 64 between any two is 10cm, is conducive to concentrate heat absorption.
Further, the distance of through-hole 52 between any two is 5cm, is conducive to processing waste residue and falls into inside machine body 1.
Further, nozzle 55 is connect by screw with baffle 8, is conducive to connect.
Operation principle：After equipment is powered, the control switch of the second water pump 69 is opened, the second water pump 69 passes through the second connecting tube
67 extract the coolant liquid in water tank 61 out, freeze by the semiconductor chilling plate 68 in the first connecting tube 66, then by three holes
Connecting pin 63 separately flows into return duct 65 and outlet tube 56, and collecting plate 64 absorbs the heat inside machine body 1,
Since return duct 65 passes through collecting plate 64, the coolant liquid after freezing in return duct 65 to carry out radiating and cooling to collecting plate 64, due to
The setting of heat emission hole 62, is conducive to auxiliary heat dissipation cooling, which is conducive to high efficiency and heat radiation cooling；When machine body 1 works,
Workpiece is processed, waste residue is will produce, waste residue drops into the inside of machine body 1 by through-hole 52, and coolant liquid is connected by three holes
Pin 63 enters in outlet tube 56, and the coolant liquid in outlet tube 56 is sprayed by nozzle 55, waste residue by filter screen 51 filtering after,
Small waste residue falls into 51 lower section of filter screen, and the first water pump 59 is again taken out the coolant liquid to cool down to waste residue by the first inlet tube 58
Go out, returned in water tank 61 using the second inlet tube 510, the setting of sponge 57, is conducive to prevent waste residue by the first connecting tube 66
Rubber stopper 54 is opened in sucking, and waste residue can be discharged by sewage draining exit 53, the process, is conducive to waste residue adhere to and cooling is dropped
Temperature prevents waste residue from scorching machine body 1, while being conducive to the recycling of coolant liquid；Coolant liquid is flowed into annular by outlet tube 56
Inside fixing sleeve 71, part coolant liquid is flowed out by the spout hole 74 on partition board 73, due to the blocking of partition board 73, cooling liquid speed
It reduces, makes the slowly accumulation of coolant liquid, extruding movement is carried out to partition board 73,75 stress of resetting spring is made to stretch, due to resetting bullet
The elastic force of spring 75 acts on, and to coolant liquid by opposition, coolant liquid is contributed to be flowed out by spout hole 74, which is conducive to
The flow velocity for reducing depositing dust sprinkling coolant liquid ensures that coolant liquid can enter in return duct 65.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (5)
1. a kind of intelligent large cattle-head machining tool high-efficiency cooling device, including machine body (1), support base (2), chamber door
(3), control cabinet (4), depositing dust cooling component (5), radiating and cooling component (6), orifice union (7) and baffle (8), feature exists
In：The inside of the machine body (1) is equipped with radiating and cooling component (6), and the depositing dust cooling component (5) is mounted on lathe sheet
The inside of body (1), and depositing dust cooling component (5) is connect with radiating and cooling component (6), the top inner wall of the machine body (1)
It is connect with the bottom interior wall of machine body (1) by baffle (8) at center；
The radiating and cooling component (6) includes water tank (61), heat emission hole (62), three hole connecting pins (63), collecting plate (64), reflux
Manage (65), the first connecting tube (66), the second connecting tube (67), semiconductor chilling plate (68) and the second water pump (69), the water tank
(61) it is fixed by welding in the bottom interior wall of machine body (1), the top side of the machine body (1) passes through flanged joint
There is the second connecting tube (67), and the other end of the second connecting tube (67) is connect with the second water pump (69) side, second water pump
(69) the other side is connect by the first connecting tube (66) with three hole connecting pins (63), the side inner wall of the machine body (1)
Equidistant to be equipped with several collecting plates (64), the top of three hole connecting pin (63) passes through collecting plate by return duct (65)
(64) it being connect with amount side at the top of water tank (61), the inner wall of first connecting tube (66) is fitted with semiconductor chilling plate (68),
The side of the machine body (1) offers heat emission hole (62)；
The depositing dust cooling component (5) includes filter screen (51), through-hole (52), sewage draining exit (53), rubber stopper (54), nozzle
(55), outlet tube (56), sponge (57), the first inlet tube (58), the first water pump (59) and the second inlet tube (510), the machine
The top of bed ontology (1) is equidistant to offer several through-holes (52), and the side of the baffle (8) passes through filter screen (51) and machine
The inner wall connection of bed ontology (1) side, the side of the baffle (8), which is located at filter screen (51) top position, is equipped with nozzle
(55), and the side of nozzle (55) is connect across baffle (8) with three hole connecting pin (63) sides by outlet tube (56), it is described go out
Orifice union (7) is socketed on the outside of liquid pipe (56), the side of the baffle (8) is located at the fitting of filter screen (51) lower position
There are sponge (57), the side of the water tank (61) to be fixed with the second inlet tube (510), and the second inlet tube (510) by flange
The other end connect with the first water pump (59) side, the other side of first water pump (59) is fixed with the first feed liquor by flange
It manages (58), and the other end of the first inlet tube (58) passes through baffle (8) and sponge (57) unicom, the bottom of the machine body (1)
Portion side offers sewage draining exit (53), and sewage draining exit (53) is internally provided with rubber stopper (54)；
The orifice union (7) includes annular fixing sleeve (71), sliding slot (72), partition board (73), spout hole (74) and resetting spring
(75), the annular fixing sleeve (71) is socketed in the outside of outlet tube (56), and the inner wall of annular fixing sleeve (71) offers cunning
The inner wall of slot (72), the sliding slot (72) is connected by partition board (73), and the side of partition board (73) offers spout hole (74), institute
The side opposite ends for stating partition board (73) are connect by resetting spring (75) with sliding slot (72) side.
2. a kind of intelligent large cattle-head machining tool high-efficiency cooling device according to claim 1, it is characterised in that：
The bottom surrounding of the machine body (1) is welded with support base (2), and the side of machine body (1) is lived by hinge
Dynamic to be connected with chamber door (3), the side of the machine body (1) is equipped with control cabinet (4).
3. a kind of intelligent large cattle-head machining tool high-efficiency cooling device according to claim 1, it is characterised in that：
The distance of the collecting plate (64) between any two is 10cm.
4. a kind of intelligent large cattle-head machining tool high-efficiency cooling device according to claim 1, it is characterised in that：
The distance of the through-hole (52) between any two is 5cm.
5. a kind of intelligent large cattle-head machining tool high-efficiency cooling device according to claim 1, it is characterised in that：
The nozzle (55) is connect by screw with baffle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478209.7A CN108655808A (en) | 2018-05-18 | 2018-05-18 | A kind of intelligent large cattle-head machining tool high-efficiency cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478209.7A CN108655808A (en) | 2018-05-18 | 2018-05-18 | A kind of intelligent large cattle-head machining tool high-efficiency cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108655808A true CN108655808A (en) | 2018-10-16 |
Family
ID=63776329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810478209.7A Pending CN108655808A (en) | 2018-05-18 | 2018-05-18 | A kind of intelligent large cattle-head machining tool high-efficiency cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108655808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676515A (en) * | 2018-12-26 | 2019-04-26 | 江苏纳沛斯半导体有限公司 | A kind of semiconductor crystal wafer grinding device with cleaning function |
| CN111922386A (en) * | 2020-08-26 | 2020-11-13 | 杨贤均 | Water pump spillway hole processing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015100907A (en) * | 2013-11-28 | 2015-06-04 | 株式会社キリウテクノ | Coolant processing device |
| CN204565780U (en) * | 2015-04-20 | 2015-08-19 | 南通中南数控机床制造有限公司 | A kind of milling machine cooling-cycle device |
| CN205996694U (en) * | 2016-08-29 | 2017-03-08 | 泉州永骏自动化科技有限公司 | A kind of automatization's cooling device for vertical machining centre |
| CN206445220U (en) * | 2016-12-21 | 2017-08-29 | 嘉善津隈精密机械有限公司 | A kind of turning machine with cooling device |
-
2018
- 2018-05-18 CN CN201810478209.7A patent/CN108655808A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015100907A (en) * | 2013-11-28 | 2015-06-04 | 株式会社キリウテクノ | Coolant processing device |
| CN204565780U (en) * | 2015-04-20 | 2015-08-19 | 南通中南数控机床制造有限公司 | A kind of milling machine cooling-cycle device |
| CN205996694U (en) * | 2016-08-29 | 2017-03-08 | 泉州永骏自动化科技有限公司 | A kind of automatization's cooling device for vertical machining centre |
| CN206445220U (en) * | 2016-12-21 | 2017-08-29 | 嘉善津隈精密机械有限公司 | A kind of turning machine with cooling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676515A (en) * | 2018-12-26 | 2019-04-26 | 江苏纳沛斯半导体有限公司 | A kind of semiconductor crystal wafer grinding device with cleaning function |
| CN109676515B (en) * | 2018-12-26 | 2020-09-11 | 江苏纳沛斯半导体有限公司 | Semiconductor wafer grinding device with cleaning function |
| CN111922386A (en) * | 2020-08-26 | 2020-11-13 | 杨贤均 | Water pump spillway hole processing equipment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |
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| RJ01 | Rejection of invention patent application after publication |