CN108274289A - A kind of power head that positive side is two-way - Google Patents
A kind of power head that positive side is two-way Download PDFInfo
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- CN108274289A CN108274289A CN201810303349.0A CN201810303349A CN108274289A CN 108274289 A CN108274289 A CN 108274289A CN 201810303349 A CN201810303349 A CN 201810303349A CN 108274289 A CN108274289 A CN 108274289A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 6
- 238000003801 milling Methods 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q37/00—Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention provides a kind of power heads that positive side is two-way, belong to numerical control machine tool technique field.It solves the technical problems such as existing power head is more demanding to metal plate height space, adaptability is low, stability is poor.Five longitudinal axis that the shell inner support of this power head has two horizontal axis being mutually parallel and is mutually parallel, five longitudinal axis include three root long axis and two short axles, the front of two short axles is respectively and fixedly provided with sector gear, gear engaged transmission on gear and two short axles on the long axis of the centre of three root long axis, gear in two short axles respectively with the gear engaged transmission on other two root longs axis, two fixed sector gears in horizontal axis top respectively in two short axles sector gear engaged transmission, one of five longitudinal axis are connected by the main shaft of shaft coupling and servo motor, it is outer with output torque that shell is stretched out in one end of two horizontal axis and three root long axis.The present invention is using side-mounted, and of less demanding for the metal plate height space of numerically-controlled machine tool, adaptability is wider.
Description
Technical field
The invention belongs to numerical control machine tool technique fields, refer in particular to a kind of power head that positive side is two-way.
Background technology
Complex milling machine tool is the derivative upgrading products of traditional numeric-control machine, and power head is the core of complex milling machine tool
Functional component, the quality of power head directly determine the working efficiency and stability of complex milling machine tool.Earliest power head is equal
Only unidirectional, working efficiency is relatively low, and machine tool structure is complicated, later to solve the above-mentioned problems, application No. is
A kind of positive side Bidirectional power head of the disclosure of the invention of " 201520872908.1 " in the plane of vertical driving shaft is in circumference
The a front surface and a side surface at 90 ° of angles has a power output head being connect with drive bevel gear, gearset spacer, driven wheel of differential, gasket according to
Secondary to be connect with the right end of driven shaft, the middle part connection of unit neck bush and driven shaft, driven right bearing, driven left bearing exist respectively
Unit neck bush both ends and driven axis connection, locking nut on the outside of driven right bearing with driven axis connection, driven right bearing, from
The outer shroud of dynamic left bearing is connect with unit housings, and bearing gland is oil sealing, dust-proof in the outside of driven left bearing and driven axis connection
Cover and sequentially pass through driven shaft on the outside of driven right bearing and connect with unit housings, the driven wheel of differential of power output head with actively
Bevel gear is connected.
Above-mentioned positive side Bidirectional power head drives the master being vertically arranged by being vertically arranged in the servo motor of shell upper end
Moving axis rotates, and then drives the driven wheel of differential on driven shaft to rotate by the drive bevel gear being arranged on driving shaft, to real
Existing positive side Bidirectional driving, but the power head is to the more demanding of lathe vertical direction spatial, and the metal plate height of conventional numerically-controlled machine tool
Space is limited, and applicability is relatively low, and installation is more troublesome.
Invention content
The object of the present invention is to provide a kind of two wheelbases of positive side from the wider array of power head of shorter, applicability.
The object of the present invention is achieved like this：
A kind of power head that positive side is two-way, it is characterised in that：Shell inner support has two horizontal axis being mutually parallel and rear end
It is respectively and fixedly provided with five to be mutually parallel piece longitudinal axis of gear, five longitudinal axis include three root long axis and two short axles, before two short axles
Portion is respectively and fixedly provided with sector gear, the gear engaged transmission on the gear and two short axles on the long axis of the centre of three root long axis, and two
Gear in root short axle respectively with the gear engaged transmission on other two root longs axis, two fixed sector gears in horizontal axis top point
Not in two short axles sector gear engaged transmission, one of five longitudinal axis by the main shaft of shaft coupling and servo motor connect,
It is outer with output torque that shell is stretched out in one end of two horizontal axis and three root long axis.
Above structure can make servo motor be horizontally installed on the rear side of shell, reduce longitudinal height of this power head,
Requirement of this power head for the metal plate height space of numerically-controlled machine tool is reduced, this power head is enable to be suitable in the market big portion absolutely
The numerically-controlled machine tool divided, greatly improves the applicability of this power head；Further, the design that long axis and horizontal axis interlock can subtract
The distance between the youthful and the elderly's axis, horizontal axis outer end (i.e. interference distance), minimum interference distance can be reduced to 87mm, be conducive to carry
The working efficiency of high numerically-controlled machine tool.
In a kind of two-way power head of above-mentioned positive side, the three root long axis are disposed in parallel in two and are set up in parallel
The trapezoidal layout in cross section of the downside of short axle, three root long axis and two short axles is provided with a cross between adjacent two root longs axis
Axis so that two horizontal axis layouts are between three root long axis.Above-mentioned three root longs axis and two butt states are laid out in isosceles trapezoid, can be made
Transmission is more stablized；And it can ensure long axis, short axle and the equal uniform rotation of horizontal axis, and the longitudinal axis and horizontal axis rotation direction phase
Together, it is all clockwise or counter-clockwise.
In a kind of two-way power head of above-mentioned positive side, one of described five longitudinal axis pass through shaft coupling and servo motor
Main shaft connection be that the long axis of centre of three root long axis is connected to become driving shaft by the main shaft of shaft coupling and motor.Servo motor
It drives shaft coupling to drive long axis rotation, rotation is then passed to by other long axis and short axle by gear, above-mentioned design can
It realizes servo motor side dress, advantageously reduces the height of power head, enhance adaptability, and be driven relatively stable, be conducive to carry
The stability of this high power head and safety；Further, it selects this intermediate root long axis to be connected with servo motor, is because will
It can drive two gears to rotate together simultaneously as driving shaft, and closer with the long axis of the extreme side distance, can reduce
Resistance in rotation process is more conducive to the transmission of power, increases the stability and safety of this power head, is conducive to improve
The working efficiency of numerically-controlled machine tool.
In a kind of two-way power head of above-mentioned positive side, the front and rear part of five longitudinal axis is by bearing support in shell
On body, integrated bearing end cap is connected in the housing groove on the outside of the bearing at five longitudinal axis rear portions, what is connect with shaft coupling is vertical
Axis is stretched out outside integrated bearing end cap and is connected by the main shaft of the shaft coupling and servo motor.
In a kind of two-way power head of above-mentioned positive side, the main shaft of described two horizontal axis and three root long axis servo motors
It is driven to rotate at the same speed.
In a kind of two-way power head of above-mentioned positive side, two horizontal axis stretched out outside shell with output torque
External part is located at outside the same side of shell and is both provided with collet cap, stretches out stretching for the outer three root long axis with output torque of shell
Outlet is located at outside the front end face of shell and is both provided with collet cap.
In a kind of two-way power head of above-mentioned positive side, sealing shroud is arranged on the longitudinal axis and horizontal axis, it is described close
The outer end of big envelope forms mounting plate outward, and annular seal groove, the peace are provided on the lateral surface of the sealing shroud inner end
It is provided with annular groove on the outer end face of loading board, forms annular flange, the loop method on the outer end of the longitudinal axis outward
The butting section of annular is inwardly formed on blue inner face, the slot bottom phase with annular groove in annular groove is stretched into the butting section
Against.Several mounting holes for being fixed on mounting plate in housing outer surface are provided on above-mentioned mounting plate.
In a kind of two-way power head of above-mentioned positive side, sliding sleeve on the corresponding horizontal axis of sector gear on the longitudinal axis
Equipped with cover body.
In a kind of two-way power head of above-mentioned positive side, the front end face of the shell and the side with horizontal axis outer end homonymy
Fixing axle is both provided on face, the outer end of the fixing axle is fixed with collet cap.
The outer end of above-mentioned collet cap and long axis, horizontal axis and fixing axle is connected through a screw thread fixation；Fixed shaft design
It can be used for fixed drill bit or centre drill, for drilling or pilot hole.In a kind of two-way power head of above-mentioned positive side, the shell
The front end face and stretching shell of body are outer to be both provided with two on the side of shell where the external part of two horizontal axis of output torque
Fixing axle more than root.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：
1,5 transmission shafts (three longitudinal axis and two horizontal axis) of the invention and 4 fixed shaft designs can clamped one time it is complete
At multi-process complexity part processing (such as：Vehicle, milling, brill, rigid tapping, hinge, boring), improve production efficiency and product essence
Degree advantageously reduces artificial, reduction equipment and saves place.
2, said structure design rotating speed upper limit higher of the invention, low noise, and since short axle and horizontal axis are to pass through fan
The connection of shape gear, rigidity is more preferable, and the service life is longer.
3, long axis and horizontal axis of the invention are staggered, and can reduce the distance between the outer end of long axis and horizontal axis,
Interference distance is advantageously reduced, is conducive to improve working efficiency.
4, servo motor of the invention is using side-mounted, adaptation of less demanding for the metal plate height space of numerically-controlled machine tool
Property is wider.
Description of the drawings
Fig. 1 is the stereogram of the present invention.
Fig. 2 is the overall structure diagram of the present invention.
Fig. 3 is the internal structure schematic diagram of the present invention.
Fig. 4 is the sectional view at the horizontal axis of the present invention.
Fig. 5 is the partial enlarged view at A in Fig. 4.
Fig. 6 is the structural schematic diagram of the connecting plate of the present invention.
In figure, 1, shell；2, horizontal axis；3, long axis；4, short axle；5, gear；6, sector gear；7, bearing；8, main shaft；9, it watches
Take motor；10, bearing (ball) cover；11, cover body；12, shaft coupling；14, collet cap；15, fixing axle；16, sealing shroud；17, mounting plate；
18, annular seal groove；19, annular groove；20, annular flange；21, butting section.
Specific implementation mode
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1-6：
The two-way power head of this positive side, it is characterised in that：1 inner support of shell has two horizontal axis being mutually parallel 2 and rear end
It is respectively and fixedly provided with five to be mutually parallel piece longitudinal axis of gear 5, five longitudinal axis include three root long axis 3 and two short axles 4, two short axles 4
Front be respectively and fixedly provided with sector gear 6, the gear 5 on the long axis 3 of the centre of three root long axis 3 is nibbled with the gear 5 in two short axles 4
Transmission is closed, the gear 5 in two short axles 4 respectively with 5 engaged transmission of gear on other two root longs axis 3, consolidate by two 2 tops of horizontal axis
For fixed sector gear 6 respectively with the engaged transmission of sector gear 6 in two short axles 4, the sector gear 6 on the longitudinal axis is corresponding
Sliding sleeve is equipped with cover body 11 on horizontal axis 2, and one of five longitudinal axis are connect by shaft coupling 12 with the main shaft 8 of servo motor 9, two cross
It is outer with output torque that shell 1 is stretched out in one end of axis 2 and three root long axis 3.
Above structure can make servo motor 9 be horizontally installed on the rear side of shell 1, and formation is side-mounted, reduces this power
Longitudinal height of head, reduces requirement of this power head for the metal plate height space of numerically-controlled machine tool, this power head is enable to be applicable in
In numerically-controlled machine tools most in the market, the applicability of this power head is greatly improved；Further, long axis 3 and horizontal axis 2
Design staggeredly can reduce the distance between long axis 3,2 outer end of horizontal axis (i.e. interference distance), and minimum interference distance can
It is reduced to 87mm, is conducive to the working efficiency for improving numerically-controlled machine tool；5 transmission shafts (three longitudinal axis and two horizontal axis 2) of the invention
Design with 4 fixing axles 15 be capable of clamped one time complete multi-process complexity part process (such as：Vehicle, milling, brill, rigidity are attacked
Silk, hinge, boring), production efficiency and Product Precision are improved, artificial, reduction equipment is advantageously reduced and saves place；Above-mentioned knot
Structure design speed upper limit higher, low noise, and since short axle 4 and horizontal axis 2 are connected by sector gear 6, rigidity is more preferable,
The service life is longer.
Further, the three root long axis 3 are disposed in parallel in the downside of two short axles being set up in parallel 4, three root long axis 3
With the trapezoidal layout in cross section of two short axles 4, a horizontal axis 2 is provided between adjacent two root longs axis 3 so that two horizontal axis 2
Layout is between three root long axis 3.Above-mentioned three root longs axis 3 and two butt states are laid out in isosceles trapezoid, and transmission can be made more to stablize；
And it can ensure the 2 equal uniform rotation of long axis 3, short axle 4 and horizontal axis, and the longitudinal axis is identical with 2 rotation direction of horizontal axis, is all suitable
Hour hands are counterclockwise；It is three root long axis that one of the five described longitudinal axis, which are connect by shaft coupling 12 with the main shaft 8 of servo motor 9,
The long axis 3 of 3 centre is connected to become driving shaft by the main shaft 8 of shaft coupling 12 and motor.The long axis 3 and horizontal axis 2 of the present invention is handed over
Mistake setting, can reduce the distance between the outer end of long axis 3 and horizontal axis 2, advantageously reduce interference distance, be conducive to improve
Working efficiency.
This servo motor 9 drives shaft coupling 12 that long axis 3 is driven to rotate, and rotation is then passed to others by gear 5
Long axis 3 and short axle 4, above-mentioned design can realize that 9 side of servo motor fills, advantageously reduce the height of power head, enhance adaptability,
And it is driven relatively stable, is conducive to the stability for improving this power head and safety；Further, this intermediate root long axis is selected
3 are connected with servo motor 9, be two gears 5 can be driven to rotate together simultaneously because as driving shaft, and with
The long axis 3 of the extreme side can reduce the resistance in rotation process, be more conducive to the transmission of power apart from relatively closely, and it is dynamic to increase this
The stability of power head and safety are conducive to the working efficiency for improving numerically-controlled machine tool.
Further, the front and rear part of five longitudinal axis is supported on by bearing 7 on shell 1, five longitudinal axis rear portions
It is connected with integrated bearing end cap 10 on 1 groove of shell in 7 outside of bearing, the longitudinal axis being connect with shaft coupling 12 stretches out integral shaft
Socket end lid 10 is outer and is connect with the main shaft 8 of servo motor 9 by the shaft coupling 12；Two horizontal axis 2 and three root longs
The main shaft 8 of 3 servo motor 9 of axis drives its synchronized rotation.
Further, the stretching shell 1 is outer is located at the same of shell 1 with the external part of two horizontal axis 2 of output torque
One side is outer and is both provided with collet cap 14, stretches out outside shell 1 and is located at shell 1 with the external part of three root long axis 3 of output torque
Front end face it is outer and be both provided with collet cap 14.
Further, it is arranged with sealing shroud 16 on the longitudinal axis and horizontal axis 2, the outer end of the sealing shroud 16 is molded outward
There is mounting plate 17, annular seal groove 18, the outer end of the mounting plate 17 are provided on the lateral surface of 16 inner end of the sealing shroud
It is provided with annular groove 19 on face, forms annular flange 20 on the outer end of the longitudinal axis outward, the annular flange 20
The butting section 21 of annular is inwardly formed on inner face, the slot with annular groove 19 in annular groove 19 is stretched into the butting section 21
Bottom leans.Several mounting holes for being fixed on mounting plate 17 on 1 outer surface of shell are provided on above-mentioned mounting plate 17.
Further, the front end face of the shell 1 and it is both provided with fixing axle on the side of 2 outer end homonymy of horizontal axis
15, the outer end of the fixing axle 15 is fixed with collet cap 14；The front end face and stretching shell 1 of the shell 1 are outer with output torque
Two horizontal axis 2 external part where shell 1 side on be both provided with two or more fixing axles 15.Above-mentioned collet cap 14 with
The outer end of long axis 3, horizontal axis 2 and fixing axle 15 is connected through a screw thread fixation；The design of fixing axle 15 can be used for fixed brill
Head or centre drill, for drilling or pilot hole.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to
The equivalence changes that structure, shape, the principle of the present invention is done, should all be covered by within protection scope of the present invention.
Claims (10)
1. a kind of power head that positive side is two-way, it is characterised in that：Shell (1) inner support have two horizontal axis being mutually parallel (2) and
Rear end is respectively and fixedly provided with five to be mutually parallel piece longitudinal axis of gear (5), and five longitudinal axis include three root long axis (3) and two short axles (4),
The front of two short axles (4) is respectively and fixedly provided with sector gear (6), the gear (5) on the long axis (3) of the centre of three root long axis (3) with
Gear (5) engaged transmission on two short axles (4), gear (5) on two short axles (4) respectively on other two root longs axis (3)
Gear (5) engaged transmission, two fixed sector gears in horizontal axis (2) top (6) respectively with the sector on two short axles (4)
(6) engaged transmission is taken turns, one of five longitudinal axis are connect by shaft coupling (12) with the main shaft (8) of servo motor (9), two horizontal axis
(2) and shell (1) is stretched out outside with output torque in one end of three root long axis (3).
2. a kind of two-way power head of positive side according to claim 1, it is characterised in that：The three root long axis (3) are simultaneously
Row are arranged in the downside of two short axles being set up in parallel (4), the trapezoidal cloth in cross section of three root long axis (3) and two short axles (4)
Innings, it is provided with a horizontal axis (2) between adjacent two root longs axis (3) so that two horizontal axis (2) layouts are between three root long axis (3).
3. a kind of two-way power head of positive side according to claim 1, it is characterised in that：One of the five described longitudinal axis are logical
It crosses shaft coupling (12) and connect the long axis (3) of the centre for being three root long axis (3) with the main shaft (8) of servo motor (9) and pass through shaft coupling
(12) it is connected to become driving shaft with the main shaft of motor (8).
4. a kind of two-way power head of positive side according to claim 1, it is characterised in that：The front and rear part of five longitudinal axis
It is supported on shell (1) by bearing (7), one is connected on shell (1) groove on the outside of the bearing (7) at five longitudinal axis rear portions
Body formula bearing (ball) cover (10), the longitudinal axis being connect with shaft coupling (12) stretch out integrated bearing end cap (10) outside and by the connection
Axis device (12) is connect with the main shaft (8) of servo motor (9).
5. a kind of two-way power head of positive side according to claim 4, it is characterised in that：Two horizontal axis (2) and
The main shaft (8) of three root long axis (3) servo motors (9) drives it to rotate at the same speed.
6. a kind of two-way power head of positive side according to claim 1, it is characterised in that：The stretching shell (1) is outside
It is located at outside the same side of shell (1) and is both provided with collet cap (14) with the external part of two horizontal axis (2) of output torque, stretches
Go out shell (1) and is located at outside with the external part of three root long axis (3) of output torque outside the front end face of shell (1) and is both provided with collet
Cap (14).
7. a kind of two-way power head of positive side according to claim 1-6 any one, it is characterised in that：The longitudinal axis and
Sealing shroud (16) is arranged on horizontal axis (2), the outer end of the sealing shroud (16) forms mounting plate (17), the sealing outward
It covers and is provided with annular seal groove (18) on the lateral surface of (16) inner end, annular is provided on the outer end face of the mounting plate (17)
Groove (19), forms annular flange (20) on the outer end of the longitudinal axis outward, on the inner face of the annular flange (20)
The butting section (21) of annular is inwardly formed, the butting section (21) stretches into the slot with annular groove (19) in annular groove (19)
Bottom leans.
8. a kind of two-way power head of positive side according to claim 1-6 any one, it is characterised in that：On the longitudinal axis
The corresponding horizontal axis (2) of sector gear (6) on sliding sleeve be equipped with cover body (11).
9. a kind of two-way power head of positive side according to claim 1-6 any one, it is characterised in that：The shell
(1) front end face and be both provided with fixing axle (15) on the side of horizontal axis (2) outer end homonymy, the fixing axle (15) it is outer
End is fixed with collet cap (14).
10. a kind of two-way power head of positive side according to claim 9, it is characterised in that：The front end face of the shell (1)
With stretching shell (1) outside to be both provided with two on the side of shell (1) where the external part of two horizontal axis (2) of output torque
Above fixing axle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810303349.0A CN108274289A (en) | 2018-04-07 | 2018-04-07 | A kind of power head that positive side is two-way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810303349.0A CN108274289A (en) | 2018-04-07 | 2018-04-07 | A kind of power head that positive side is two-way |
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| Publication Number | Publication Date |
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| CN108274289A true CN108274289A (en) | 2018-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810303349.0A Pending CN108274289A (en) | 2018-04-07 | 2018-04-07 | A kind of power head that positive side is two-way |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116652626A (en) * | 2023-07-26 | 2023-08-29 | 通用技术集团机床工程研究院有限公司 | Transmission transfer device for horizontal exchange of machine tool workbench and application method thereof |
| CN116652626B (en) * | 2023-07-26 | 2023-10-03 | 通用技术集团机床工程研究院有限公司 | Transmission transfer device for horizontal exchange of machine tool workbench and application method thereof |
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Application publication date: 20180713 |