CN110052624A - A kind of high-precision rotary is top - Google Patents
A kind of high-precision rotary is top Download PDFInfo
- Publication number
- CN110052624A CN110052624A CN201910470435.5A CN201910470435A CN110052624A CN 110052624 A CN110052624 A CN 110052624A CN 201910470435 A CN201910470435 A CN 201910470435A CN 110052624 A CN110052624 A CN 110052624A
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- CN
- China
- Prior art keywords
- thimble
- protective cover
- cooling
- precision rotary
- side wall
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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
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
- B23B23/04—Live centres
- B23B23/045—Live centres the centres being adjustable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The present invention relates to numerically-controlled machine tool part fields, it is top to specifically disclose a kind of high-precision rotary, protective cover is equipped with cooling cylinder far from sleeve side, cooling cylinder is sheathed on thimble periphery and can be driven by thimble and rotates, cricoid cooling chamber is equipped in cooling cylinder, cooling chamber is equipped with several through-holes close to the side wall of thimble, and cooling chamber is interior circumferentially arranged with several flow deflectors, and flow deflector is fixed on cooling chamber close to the side wall of thimble or on the side wall far from thimble；Cooling chamber side wall is equipped with closed inlet.This programme can be cooled down to top, improve top precision.
Description
Technical field
The present invention relates to numerically-controlled machine tool part fields, and in particular to a kind of high-precision rotary is top.
Background technique
It is top to play the role of positioning support to workpiece in machining process, it is top in assembly to be assemblied in lathe bottom plate
Tailstock on, and tailstock can slide on lathe bottom plate.However it is top in thimble taper can change in use
Become, so that the element precision of production reduces, so needing to be adjusted taper, traditional adjustment needs professional up to ten
A few minutes even longer time, in order to improve the efficiency of adjustment, our company has developed the cone application No. is 201611141381.0
Spend rapid-adjusting type thimble structure.This thimble structure includes the knot such as thimble, sleeve, fixed pin, mandrel, mandril and protective cover
Structure, sleeve are equipped with eccentric orfice, and mandril is threadedly engaged with eccentric orfice, and mandril is eccentrically set on sleeve, i.e. mandril and thimble is inclined
Heart setting, when needing to adjust the taper of thimble, i.e. changeable supporting role of the mandril to thimble of rotational sleeve, to make thimble
Taper change.
But this thimble structure is found in actual use, workpiece can generate more heat transfer in machining process, heat
Amount is transferred on thimble from the contact position with workpiece, and making thimble, deformation occurs, since the eccentricity of eccentric orfice is smaller, the cone of thimble
Degree is smaller, so this deformation can have an adverse effect to the machining accuracy of workpiece.
Summary of the invention
The purpose of the present invention is to provide a kind of, and to carry out cooling high-precision rotary top to top.
In order to achieve the above objectives, the technical scheme is that a kind of high-precision rotary is top, protective cover is far from sleeve one
Side is equipped with cooling cylinder, and cooling cylinder is sheathed on thimble periphery and can be driven by thimble and rotates, and cricoid cooling chamber is equipped in cooling cylinder,
Cooling chamber is equipped with several through-holes close to the side wall of thimble, and cooling chamber is interior circumferentially arranged with several flow deflectors, and flow deflector is fixed on cold
But chamber is on the side wall of thimble or the side wall of separate thimble；Cooling chamber side wall is equipped with closed inlet.
This programme has the beneficial effect that:
(1) contain coolant liquid in cooling cylinder, when cooling cylinder rotation when, under the action of flow deflector, part coolant liquid with
Cooling cylinder movement, and when coolant liquid turns to above thimble with cooling cylinder, coolant liquid from through-hole flow downwardly to cooling cylinder with
Between thimble, the coolant liquid right above thimble, which drops down onto, cools down to thimble on thimble, avoids thimble that thermal deformation occurs.
(2) workpiece can constantly generate clast in machining process, and part clast splashes between thimble and protective cover
At gap, top inside may be slid into, causes thimble, protective cover or mandrel wear.In the technical program, cooling cylinder is located at workpiece
Between protective cover, play the role of blocking to the clast of generation, clast is avoided to enter top inside.
(3) since thimble rotates, the coolant liquid dropped down on thimble is separated with thimble under the action of the centrifugal, drops down onto cooling cylinder
On inner wall, and channel is passed through again and is flow in cooling chamber, i.e., coolant liquid may be reused.On the one hand the use of coolant liquid is reduced
Amount reduces cooling cost；On the other hand, it only needs coolant liquid cooling chamber is added from inlet in the technical program, no
It needs in the extraneous pipeline that conveying coolant liquid is arranged, to simplify the complexity of lathe.
(4) coolant liquid that cascade is formed between cooling cylinder and thimble is also contacted with air, and the heat in coolant liquid can be with
It quickly spills into air, to keep lower temperature, reduces the temperature difference between coolant liquid and thimble, increase in the unit time
It is transferred to the heat in coolant liquid from thimble, to improve cooling effect.
Further, cooling cylinder is fixed with cricoid guide cylinder far from protective cover one end, and guide cylinder is in a circular table shape, and guide cylinder
It is big end far from protective cover one end.
This programme has the beneficial effect that on the one hand guide cylinder plays the role of blocking to the clast of splashing, and clast is avoided to enter
Space between cooling cylinder and thimble；On the other hand position-limiting action is played to the coolant liquid flowing between cooling cylinder and thimble, kept away
Exempt from coolant liquid outflow.
Further, guide cylinder is located at side of all through-holes far from protective cover close to one end of protective cover.
This programme, which has the beneficial effect that, will not fall in guide cylinder when coolant liquid drops down onto cooling cylinder and thimble across through-hole
On, it avoids coolant liquid from sliding along guide cylinder to outside cooling cylinder, reduces the loss of coolant liquid.
Further, the length direction of flow deflector and the axial direction of thimble are identical.
This programme has the beneficial effect that flow deflector is more preferable to the blocking effect of coolant liquid, promotes more coolant liquids with cold
But cylinder rotates, to increase the amount flowed out from through-hole, i.e. thimble can be contacted with more coolant liquids, and cooling effect is more preferable.
Further, flow deflector tilts counterclockwise or clockwise close to one end of thimble.
It is right angle that this programme, which has the beneficial effect that the angle between flow deflector and cooling chamber side wall is not, but acute angle, water conservancy diversion
Space between piece and cooling chamber side wall can store more coolant liquids, to increase the cooling liquid measure flowed down from through-hole, mention
Cooling effect of the height to thimble.
Further, through-hole is round table-like, and through-hole is small end close to one end of thimble.
This programme has the beneficial effect that the distance between big end of adjacent through-holes is smaller, and the distance between small end is relatively
The cascade that the coolant liquid flowed out from small end greatly is formed will form gap, increases the area that cascade is contacted with air, forms cascade
Heat in coolant liquid is easier to spill into air, and the cooling effect of coolant liquid is more preferable.And compared with the small end of through-hole, big end
Diameter is bigger, and the coolant liquid in cooling chamber is easier to enter in through-hole from big end.
Further, mandrel is equipped with cricoid capillary groove far from the side wall of thimble.
If it is top that this programme has the beneficial effect that the gap for causing water mist or dust between thimble and protective cover accidentally enters
In, water mist and dust can be deposited in capillary groove, and thimble is avoided to be worn with mandrel.
Further, protective cover is equipped with the first passage being connected to capillary groove.
This programme has the beneficial effect that when water mist and dust accumulation are in capillary groove, can transport along cricoid capillary groove
It is dynamic, it is finally flowed out from first passage, avoids water mist and dust bulk deposition.
Further, protective cover is equipped with the second channel that is connected to capillary groove, slidably connected in second channel protrude into it is anti-
Scraping blade in sink.
This programme, which has the beneficial effect that, slides into scraping blade in capillary groove, and when due to top work, mandrel turns relative to protective cover
Dynamic, so mandrel is rotated relative to scraping blade, scraping blade can scrape the water mist and dust being attached in waterproof groove sidewall, promote water mist
With dust accumulation at scraper plate, conveniently drop out.
Further, first passage and second channel are respectively positioned on protective cover lower part.
This programme has the beneficial effect that scraper plate is located at protective cover lower part, water mist and dust accumulation in protective cover lower part, i.e., first
Channel circumference, it is convenient to be dropped out from first passage.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the longitudinal sectional view of Fig. 1；
Fig. 3 is the enlarged drawing of cooling cylinder in Fig. 2；
Fig. 4 is A-A in Fig. 3 to direction view；
Fig. 5 is the longitudinal sectional view of the embodiment of the present invention 2；
Fig. 6 is the B-B direction direction view in Fig. 5；
Fig. 7 is the enlarged drawing in Fig. 6 at C.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: thimble 1, friction sleeve 11, driving gear 12, protective cover 2, shaft 21,
Intermediate gear 22, first passage 23, second channel 24, push rod 25, sheet rubber 26, scraping blade 27, sleeve 3, eccentric orfice 31, terminal pad
32, bearing 33, cooling cylinder 4, cooling chamber 41, flow deflector 42, through-hole 43, ring gear 44, cooling space 45, tailstock 5, mandril 6, core
Axis 7, capillary groove 71, guide cylinder 8.
Embodiment 1
A kind of high-precision rotary is top, as depicted in figs. 1 and 2, including sleeve 3, mandrel 7, mandril 6, thimble 1 and protective cover
2, sleeve 3 is successively arranged mounting hole, bearing hole and eccentric orfice 31 from left to right, and mounting hole, bearing hole and sleeve 3 are coaxial, partially
31 relative sleeve of heart hole, 3 eccentric setting.3 left end of sleeve integrally formed with annular terminal pad 32, in terminal pad 32 circumferentially
Several threaded holes are furnished with, sleeve 3 is inserted into the tailstock 5 of lathe, 32 right side wall of terminal pad offsets with 5 left side wall of tailstock, will
Bolt screws in the fixation that sleeve 3 can be realized in threaded hole and tailstock 5.
In the installation to mounting hole of mandrel 7, sleeve 3 is stretched out in 7 left end of mandrel, and 7 right end of mandrel protrudes into bearing hole, 7 He of mandrel
Bearing 33 is equipped between bearing hole inner wall, the outer ring of bearing 33 and bearing hole inner wall are interference fitted, the inner ring and mandrel 7 of bearing 33
Interference fit, mandrel 7 can be rotated relative to sleeve 3.
Protective cover 2 is set in 7 left end of mandrel, and rotation outside framework oil seal is equipped between protective cover 2 and mandrel 7, and protective cover 2 is right
End and 3 left end of sleeve offset, and 2 right end of protective cover and 3 left end of sleeve are equipped with the threaded hole of alignment, and bolt is screwed in threaded hole
It is interior protective cover 2 and sleeve 3 to be fixed.
It is equipped with bellmouth in mandrel 7 and is connected to the cylindrical hole in bellmouth right end, bellmouth left end is big end, 1, thimble
In in bellmouth and with bellmouth taper fit, mandrel 7 is stretched out in the left end of thimble 1.Mandril 6 is installed in eccentric orfice 31, and is pushed up
Bar 6 is threadedly engaged with eccentric orfice 31, and mandril 6 is made to rotate the fixation that mandril 6 Yu sleeve 3 can be completed relative to sleeve 3.Mandril 6
Left end is protruded into cylindrical hole and offsets with 1 right end of thimble, and due to 31 eccentric setting of eccentric orfice, 6 left end of mandril offsets with thimble 1
Deviate the center line of thimble 1 in place.For 3 right end of sleeve integrally formed with prismatic boss, the boss in the present embodiment is hexagonal prisms,
Similar to the shape of nut, 6 right end of mandril is inserted into boss and concordant with boss right end.
The driving gear and cooling cylinder 4 being set on thimble 1 are equipped on the left of protective cover 2, as shown in figure 3, driving gear
12 are mounted on thimble 1, specifically, driving gear 12 can be connected by key with thimble 1, it can also be in driving gear 12 and thimble 1
Between be arranged friction sleeve 11, friction sleeve 11 has elasticity, so that thimble 1 is able to drive driving gear 12 when rotating and rotate, this implementation
In example in such a way that friction sleeve 11 is installed.
4 right end of cooling cylinder is welded with ring gear 44, is connected between ring gear 44 and driving gear 12 by intermediate gear 22,
To which when thimble 1 rotates, driving cooling cylinder 4 is rotated, intermediate gear 22 is keyed in shaft 21,21 right end of shaft and protection
2 left end of lid is threadedly engaged, and shaft 21 plays the role of support to intermediate gear 22.
As shown in figure 4, forming cooling space 45 between cooling cylinder 4 and thimble 1, cricoid cooling chamber is equipped in cooling cylinder 4
41,4 inner wall of cooling cylinder is equipped with several round table-like through-holes 43, and through-hole 43 is small end towards one end of thimble 1, avoids being greater than through-hole
43 small ends and the clast for being less than 43 big end of through-hole enters in through-hole 43 blocking through-hole 43.Edge is axially arranged with several lead in cooling chamber 41
Flow 42, flow deflector 42 can be fixed on water conservancy diversion of the cooling chamber 41 close to thimble 1 or on the side wall far from thimble 1, in the present embodiment
Piece 42 is fixed on side wall of the cooling chamber 41 far from thimble 1.The length of flow deflector 42 is along the axial direction of thimble 1, and flow deflector 42 leans on
One end of nearly thimble 1 is counterclockwise or inclination clockwise, i.e. flow deflector 42 deviate thimble 1 along the extended line of the axial projection of thimble 1
Axle center, in the present embodiment, flow deflector 42 tilts counterclockwise close to one end of thimble 1.4 outer wall of cooling cylinder is equipped with and cooling chamber 41
The inlet of connection, inlet is interior to be equipped with inlet plug, and inlet plug is threadedly engaged with inlet, and inlet plug is screwed in feed liquor
Inlet can be closed in mouthful.
Again as shown in figure 3,4 left end of cooling cylinder is equipped with cricoid guide cylinder 8, it is left that 8 right end of guide cylinder is located at all through-holes 43
Side, 8 left end of guide cylinder and 4 left end of cooling cylinder are welded, and guide cylinder 8 is the round table-like of small end in right end, are played to the clast of splashing
The effect of blocking.
Specific implementation process is as follows:
As shown in Fig. 2, when the taper of thimble 1, which shifts, to be needed to adjust, manually screwing off will cover in top use process
Cylinder 3 is fixed on bolt on the tailstock 5 of lathe, then rotational sleeve 3, and sleeve 3 drives mandril 6 to rotate, to the taper of thimble 1 into
Row is adjusted.Specific adjusting method is illustrated so that 1 left end of thimble tilts down as an example: when rotational sleeve 3, sleeve 3 drives top
Bar 6 rotates, and is against on thimble 1 since mandril 6 is eccentric, and the contact position of mandril 6 and thimble 1 is rotated along the center line of thimble 1,
When the contact position of mandril 6 and thimble 1 turns to the lower part of thimble 1, the stress point of thimble 1 is located at lower part, and 1 left end of thimble is upward
It lifts, thimble 1 restores the state coaxial with mandrel 7 again.Then it is by sleeve 3 and the fixation of tailstock 5 of lathe using bolt again
Complete the adjusting of thimble 1.It should be noted that the variable quantity of the taper of thimble 1 is very small, therefore conicity regulation is very
It is carried out in by a small margin.
As shown in figure 3, top, before use, coolant liquid first is added from inlet, the coolant liquid in the present embodiment is conduction oil,
When coolant liquid is flowed out from the through-hole 43 for being located at 4 bottom of cooling cylinder, stops that coolant liquid is added into cooling chamber 41, be oriented at this time
Cylinder 8 and ring gear 44 limit the coolant liquid being located in cooling space, prevent coolant liquid from leaking to cooling from cooling cylinder 4
Outside cylinder 4.
It is top in use, thimble 1 and mandrel 7 are rotated with workpiece, thimble 1 passes through driving gear 12 and 22 band of intermediate gear
Dynamic ring gear 44 rotates, so that cooling cylinder 4 be driven to rotate, due to ring gear 44 the number of teeth far more than driving gear 12 the number of teeth,
Therefore the revolving speed of ring gear 44 is much smaller than the revolving speed of thimble 1.The effect of part coolant liquid in cooling chamber 41 in flow deflector 42
Under with cooling cylinder 4 rotate, when coolant liquid turns to the top of cooling chamber 41, as shown in figure 4, flow deflector 42 is close to thimble 1
One end be lower than the other end, coolant liquid flow to cooling chamber 41 on the side wall of thimble 1 along flow deflector 42, and flows from through-hole 43
To cooling space 45, cascade is formed in cooling space 45.The coolant liquid leaching flowed down from the through-hole 43 being located at right above thimble 1 exists
On thimble 1, cool down to thimble 1, is then separated under the action of the centrifugal with thimble 1.The coolant liquid in cooling space 45 flow to cold
But it after 4 bottom of cylinder, is reentered in cooling chamber 41 from the through-hole 43 of bottom.It is when coolant liquid enters cooling space 45 and empty
Gas contacts, and the heat in coolant liquid can be spilt into air, and the temperature of coolant liquid is minimized, and keeps preferable cooling effect.
As shown in figure 3, the clast that machining generates is cooled the barrier effect of cylinder 4 and guide cylinder 8 and close can not prevent
In protecting cover 2, when practical application, can be selected the clast that existing cleaner such as bag filter generates machining and clear up,
Extraneous cleaner can timely remove clast, and clast is avoided to enter between thimble 1 and mandrel 7.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 5, Fig. 6 and Fig. 7, the mandrel 7 of the present embodiment is far from the side wall of thimble 1
Capillary groove 71 equipped with annular, capillary groove 71 are located at 7 left end of mandrel, and capillary groove 71 is wedge shaped along the axial section of mandrel 7, protection
2 bottom of lid is equipped with the first passage 23 being connected to capillary groove 71, when water mist enters the joint gap of protective cover 2 and mandrel 7, water
Mist is entered in capillary groove 71 and is discharged eventually by first passage 23, and water mist is avoided to corrode bearing 33.2 lower part of protective cover is equipped with
The second channel 24 being aligned with capillary groove 71, second channel 24 are located at the left side of first passage 23, and sliding is set in second channel 24
There is a push rod 25,25 upper end of push rod is fixed with sheet rubber on push rod 25 integrally formed with the scraping blade 27 being affixed with 71 side wall of capillary groove
26, increase the pressure between push rod 25 and second channel 24, to increase the frictional force that push rod 25 is subject to, anti-throw-out lever 25 is from the
It is skidded off in two channels 24.
The top adjusting method of the present embodiment and same as Example 1 to top cooling means, but opened top
When beginning work, it will be pushed in the inside second channel 24 of push rod 25, until scraping blade 27 and 71 side wall of capillary groove are affixed, when 7 turns of mandrel
When dynamic, scraping blade 27 makes to enter water mist and dust in capillary groove 71 and is deposited in scraping blade 27 relative to 71 side walls of capillary groove
Place, it is convenient to be dropped out from first passage 23.When needing replacing thimble, pulling out push rod 25 can make scraping blade 27 far from capillary groove
71。
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, these also should be considered as guarantor of the invention
Range is protected, these all will not influence the effect and patent practicability that the present invention is implemented.The present invention omits the technology of description, shape
Shape, construction portion are well-known technique.
Claims (10)
1. a kind of high-precision rotary is top, it is characterised in that: the protective cover is equipped with cooling cylinder, the cooling far from sleeve side
Cylinder is sheathed on thimble periphery and can be driven by thimble and rotates, and cricoid cooling chamber is equipped in the cooling cylinder, the cooling chamber leans on
The side wall of nearly thimble is equipped with several through-holes, and the cooling chamber is interior circumferentially arranged with several flow deflectors, and the flow deflector is fixed on cold
But chamber is on the side wall of thimble or the side wall of separate thimble；The cooling chamber side wall is equipped with closed inlet.
2. high-precision rotary according to claim 1 is top, it is characterised in that: the cooling cylinder is solid far from protective cover one end
Surely there is cricoid guide cylinder, the guide cylinder is in a circular table shape, and guide cylinder is big end far from protective cover one end.
3. high-precision rotary according to claim 2 is top, it is characterised in that: the guide cylinder is close to one end of protective cover
Side positioned at all through-holes far from protective cover.
4. high-precision rotary according to claim 1 is top, it is characterised in that: the length direction and thimble of the flow deflector
Axial direction it is identical.
5. high-precision rotary according to claim 4 is top, it is characterised in that: the flow deflector is inverse close to one end of thimble
Hour hands or clockwise inclination.
6. high-precision rotary according to claim 1 is top, it is characterised in that: the through-hole is round table-like, and through-hole leans on
One end of nearly thimble is small end.
7. high-precision rotary according to claim 1 is top, it is characterised in that: mandrel is equipped with ring far from the side wall of thimble
The capillary groove of shape.
8. high-precision rotary according to claim 7 is top, it is characterised in that: the protective cover is equipped with to be connected with capillary groove
Logical first passage.
9. high-precision rotary according to claim 8 is top, it is characterised in that: the protective cover is equipped with to be connected with capillary groove
Logical second channel slidably connects the scraping blade protruded into capillary groove in the second channel.
10. high-precision rotary according to claim 9 is top, it is characterised in that: the first passage and second channel are equal
Positioned at protective cover lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470435.5A CN110052624B (en) | 2019-05-31 | 2019-05-31 | High-precision rotating center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470435.5A CN110052624B (en) | 2019-05-31 | 2019-05-31 | High-precision rotating center |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110052624A true CN110052624A (en) | 2019-07-26 |
| CN110052624B CN110052624B (en) | 2020-05-08 |
Family
ID=67325362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910470435.5A Active CN110052624B (en) | 2019-05-31 | 2019-05-31 | High-precision rotating center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110052624B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5957017A (en) * | 1995-05-04 | 1999-09-28 | Andronica; Randall | Dead center for machine tools |
| CN2766839Y (en) * | 2005-02-02 | 2006-03-29 | 上海天祥健台制药机械有限公司 | Water cooling device of soft capsule machine |
| CN103121113A (en) * | 2011-11-19 | 2013-05-29 | 李虎林 | Novel centre |
| CN204109519U (en) * | 2014-09-24 | 2015-01-21 | 山东富扬科技包装材料有限公司 | The cooling device of multifunctional wet compounding machine |
| CN206631681U (en) * | 2017-01-17 | 2017-11-14 | 衢州市闻天化工有限公司 | A kind of sand mill with novel cooling structure |
| CN207288420U (en) * | 2017-05-22 | 2018-05-01 | 佛山市高明区生产力促进中心 | A kind of aluminium section material cooling device |
| CN208131193U (en) * | 2018-01-31 | 2018-11-23 | 重庆鸿净环保科技开发有限公司 | A kind of grinding device convenient for scrapping automobile glass recycling |
-
2019
- 2019-05-31 CN CN201910470435.5A patent/CN110052624B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5957017A (en) * | 1995-05-04 | 1999-09-28 | Andronica; Randall | Dead center for machine tools |
| CN2766839Y (en) * | 2005-02-02 | 2006-03-29 | 上海天祥健台制药机械有限公司 | Water cooling device of soft capsule machine |
| CN103121113A (en) * | 2011-11-19 | 2013-05-29 | 李虎林 | Novel centre |
| CN204109519U (en) * | 2014-09-24 | 2015-01-21 | 山东富扬科技包装材料有限公司 | The cooling device of multifunctional wet compounding machine |
| CN206631681U (en) * | 2017-01-17 | 2017-11-14 | 衢州市闻天化工有限公司 | A kind of sand mill with novel cooling structure |
| CN207288420U (en) * | 2017-05-22 | 2018-05-01 | 佛山市高明区生产力促进中心 | A kind of aluminium section material cooling device |
| CN208131193U (en) * | 2018-01-31 | 2018-11-23 | 重庆鸿净环保科技开发有限公司 | A kind of grinding device convenient for scrapping automobile glass recycling |
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| Publication number | Publication date |
|---|---|
| CN110052624B (en) | 2020-05-08 |
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Denomination of invention: A high-precision rotating center Effective date of registration: 20230912 Granted publication date: 20200508 Pledgee: Liangjiang branch of Chongqing Rural Commercial Bank Co.,Ltd. Pledgor: CHONGQING HONGGANG CNC MACHINE Co.,Ltd. Registration number: Y2023500000068 |
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