CN108015528A - A kind of nut fastening apparatus and fastening method - Google Patents
A kind of nut fastening apparatus and fastening method Download PDFInfo
- Publication number
- CN108015528A CN108015528A CN201711315975.3A CN201711315975A CN108015528A CN 108015528 A CN108015528 A CN 108015528A CN 201711315975 A CN201711315975 A CN 201711315975A CN 108015528 A CN108015528 A CN 108015528A
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- China
- Prior art keywords
- rack
- slowspeed machine
- nut
- fastening apparatus
- sleeve
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
Abstract
The invention discloses a kind of nut fastening apparatus, including rack, fixing device, feed mechanism, slowspeed machine, sleeve, fixture and position-limit mechanism；The fixing device is arranged at one end of the rack, the fastening apparatus can be fixed on body surface to be tightened；The slowspeed machine is arranged at the side of the rack by the feed mechanism, and the axis of the slowspeed machine is vertical with the end face of the fixing device, and the feed mechanism can adjust position of the slowspeed machine with respect to rack；The sleeve is arranged on slowspeed machine axis by the fixture, the sleeve can under the action of slowspeed machine locking nut；The position-limit mechanism is arranged on the feed mechanism, uniform force and the distance of the limitation slowspeed machine feeding when enabling to the nut to fasten.Correspondingly, the invention also discloses a kind of nut fastening method.Using the present invention, have the advantages that applied widely, practicality is good, high yield rate and security performance are high.
Description
Technical field
The present invention relates to a kind of nut fastening apparatus, more particularly to the nut fastening apparatus in chemical industry equipment, further relate to one
Kind fastening method.
Background technology
Existing nut fastening can certain be fastened together by dedicated clamp device or in production line
Process.But portable fastening tool can fasten the not high spiral shell of some fastening requirements still based on spanner by spanner
Mother, but if when the fastening force to nut has required, just cannot be guaranteed.Such as heat exchanger nut fastening when, heat exchange
For device by clamp nut so as to fasten the spring of end face, the spring, which can seal heat exchanger end face, prevents leakage, also has damping
Effect.In addition the end face spring of heat exchanger is then several at most tens few, is evenly distributed in heat exchanger circumferential end surfaces, not only
It is required that it can be fastened by compression, also require the fastening force of each spring can be equal, so that heat exchanger end face is in sealing
Can uniform force, namely have specific requirement to the decrement of each spring.And traditional portable fastening tool is not
It can meet use demand, it is therefore necessary to make improvements.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of nut fastening apparatus, the fastening apparatus includes machine
Frame, fixing device, feed mechanism, slowspeed machine, sleeve, fixture and position-limit mechanism；
The fixing device is arranged at one end of the rack, the fastening apparatus can be fixed on object table to be tightened
Face；The slowspeed machine is arranged at the side of the rack, and the axis of the slowspeed machine and institute by the feed mechanism
State that the end face of fixing device is vertical, the feed mechanism can adjust position of the slowspeed machine with respect to rack；The sleeve
Be arranged at by the fixture on slowspeed machine axis, the sleeve can under the action of slowspeed machine locking nut；The limit
Position mechanism is arranged on the feed mechanism, uniform force and the limitation slowspeed machine feeding when enabling to the nut to fasten
Distance.
Further, the feed mechanism includes gear and the matched rack of gear and handle；The gear is arranged at
In the rack, and the handle with being arranged at shell outside is connected；The anodontia side of rack is fixed with the slowspeed machine to be connected
Connect.
Further, the gear can also be multi-stage gear group so that feed accuracy higher.
Further, the rack is equipped with the first fixed block and the second fixed block, first fixed block and described
Both ends of two fixed blocks respectively with the slowspeed machine are connected, and first fixed block and second fixed block can be by described in
Slowspeed machine is fixedly connected with the rack.
Further, first fixed block is arranged at motor shaft end, for fixing the motor shaft end of the motor；It is described
Second fixed block is used for the tail end for fixing motor.
Further, the fixed block can be increased and decreased according to specific structure so that the fixation that motor can consolidate
On rack.
Further, the position-limit mechanism includes being arranged at block on the rack, can limit the motor along
The distance that its axis direction advances or retreats.
Further, one end of the sleeve is equipped with fixing axle, and the fixing axle is connected with the fixture；The other end is equipped with
For accommodating the through hole of nut and cavity for accommodating bolt external part.
Further, the fixing axle is round table-like with fixture cooperation.
Further, the through hole is the regular polygon coordinated with nut.
Preferably, the regular polygon is to the dodecagon of axis protrusion per side.
Further, the through hole can also be positive six deformations.
Further, the through hole can also be the circle coordinated with nut maximum outside diameter.
Further, the rotating speed of the slowspeed machine is 15~30r/min.
Preferably, the rotating speed of the slowspeed machine is 20r/min.
Further, electromagnetic coil is equipped with the fixing device, the electromagnetic coil can adsorb after being powered and wait to lock
Determine on the end face where nut.
Further, the fastening apparatus further includes controller, and the controller can control the logical of the electromagnetic coil
Disconnected, the controller can also control the rotating speed of the slowspeed machine.
Further, side opposite with motor in the rack is equipped with handle, and anti-skid structure is additionally provided with the handle.
Correspondingly, present invention also offers a kind of nut fastening method, comprise the following steps：
S1：The fastening apparatus is positioned over close to the appropriate location of nut to be tightened, and opens electromagnetic switch and causes tightly
It is fixed standby to be fixed on the position；
S2：Rotational handle, adjusting the relative position of the sleeve and bolt makes it reach desired value；
S3：Start motor, motor drives fixture and sleeve locking nut.
Implement the embodiment of the present invention, have the advantages that：
(1) sleeve of the present invention is fastened primarily directed to hex nut, and sleeve is by fixture and electricity
Arbor is connected, therefore can replace sleeve as needed to adapt to the nut of other specifications or other parts, so of the invention
Fastening apparatus it is applied widely, practicality is good；
(2) motor that the present invention uses is slowspeed machine, can be avoided in fastening because motor causes nut to damage at a high speed
Bad the problem of, occurs, so the fastening apparatus high yield rate of the present invention；
(3) position-limit mechanism in the present invention, is not only able in fastening spring, makes that it is equally loaded, moreover it is possible to improves equipment
In the security using process.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art and advantage, below will be to implementing
Example or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, drawings in the following description are only
Only it is some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of nut fastening apparatus of the present invention；
Fig. 2 is the first embodiment tube-in-tube structure schematic diagram of fastening apparatus of the present invention；
Fig. 3 is the A of first embodiment sleeve described in Fig. 2 to figure.
Fig. 4 is the second embodiment tube-in-tube structure schematic diagram of fastening apparatus of the present invention；
Fig. 5 is the A of second embodiment sleeve described in Fig. 4 to figure.
Wherein, attached drawing correspondence markings are in figure：1- racks；2- fixing devices；3- feed mechanisms；301- racks；302- hands
Handle；The first fixed blocks of 303-；The second fixed blocks of 304-；4- motors；5- sleeves；501- fixing axles；502- through holes；503- cavitys；
6- fixtures；7- position-limit mechanisms.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
It is described in detail on step ground.Obviously, described embodiment is only one embodiment of the invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all on the premise of creative work is not made
Other embodiment, belongs to the scope of protection of the invention.
" one embodiment " or " embodiment " referred to herein refers to may be included at least one implementation of the present invention
A particular feature, structure, or characteristic.In the description of the present invention, it is to be understood that term " first ", " second " are only used for retouching
Purpose is stated, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.By
This, defines " first ", the feature of " second " can be expressed or what is implied includes one or more this feature.Moreover,
Term " first ", " second " etc. are for distinguishing similar object, without for describing specific order or precedence.Should
The data that the understanding so uses can exchange in the appropriate case, so as to the embodiment of the present invention described herein can with except
Order beyond those for illustrating or describing herein is implemented.
Embodiment one：
As shown in Figure 1,2 and 3, present embodiments provide a kind of nut fastening apparatus, the fastening apparatus include rack 1,
Fixing device 2, feed mechanism 3, slowspeed machine 4, sleeve 5, fixture 6 and position-limit mechanism 7；
The fixing device 2 is arranged at one end of the rack 1, the fastening apparatus can be fixed on object to be tightened
Surface；The slowspeed machine 4 is arranged at the side of the rack 1, and the axis of the slowspeed machine 4 by the feed mechanism 3
Line is vertical with the end face of the fixing device 2, and the feed mechanism 3 can adjust position of the slowspeed machine 4 with respect to rack 1
Put；The sleeve 5 is arranged on 4 axis of slowspeed machine by the fixture 6, and the sleeve 5 can be under the action of slowspeed machine 4
Locking nut；The position-limit mechanism 7 is arranged on the feed mechanism 3, uniform force and limit when enabling to the nut to fasten
Make the distance that the slowspeed machine 4 is fed.
Further, the feed mechanism 3 includes gear and the matched rack 301 of gear and handle 302；The tooth
Wheel is arranged in the rack 1, and the handle 302 with being arranged at the outside of rack 1 is connected；The 301 anodontia side of rack and institute
Slowspeed machine 4 is stated to be fixedly connected.
Further, the gear can also be multi-stage gear group so that feed accuracy higher.
Further, the rack 301 is equipped with the first fixed block 303 and the second fixed block 304, first fixed block
303 and both ends of second fixed block 304 respectively with the slowspeed machine 4 be connected, first fixed block 303 and described
The slowspeed machine 4 can be fixedly connected by two fixed blocks 304 with the rack 301.
Further, first fixed block 303 is arranged at motor shaft end, for fixing the motor shaft end of the motor；
Second fixed block 304 is used for the tail end for fixing motor.
Further, the position-limit mechanism 7 includes the block being arranged on the rack 301, can limit the motor
The distance advanced along its axis direction or retreated.
Further, one end of the sleeve 5 is equipped with fixing axle 501, and the fixing axle 501 is connected with the fixture 6；Separately
One end, which is equipped with, is used for the through hole 502 for accommodating nut and the cavity 503 for accommodating bolt external part.
Further, the fixing axle 501 is round table-like with the cooperation of fixture 6.
Further, the through hole 502 is the regular polygon coordinated with nut.
As shown in Figure 3, it is preferred that the regular polygon is to the dodecagon of axis protrusion per side.
Preferably, the rotating speed of the slowspeed machine 4 is 20r/min.
Further, electromagnetic coil is equipped with the fixing device 2, the electromagnetic coil can adsorb after being powered and wait to lock
Determine on the end face where nut.
Further, the fastening apparatus further includes controller, and the controller can control the logical of the electromagnetic coil
Disconnected, the controller can also control the rotating speed of the slowspeed machine 4.
Further, side opposite with motor in the rack 1 is equipped with handle 101, is additionally provided with the handle 101 anti-
Slipped Clove Hitch structure.
Correspondingly, the present embodiment additionally provides a kind of nut fastening method, comprises the following steps：
S1：The fastening apparatus is positioned over close to the appropriate location of nut to be tightened, and opens electromagnetic switch and causes tightly
It is fixed standby to be fixed on the position；
S2：Rotational handle 302, adjusting the relative position of the sleeve 5 and bolt makes it reach desired value；
S3：Start motor, motor drives 5 locking nut of fixture 6 and sleeve.
Embodiment two：
As shown in Fig. 1,4 and 5, present embodiments provide a kind of nut fastening apparatus, the fastening apparatus include rack 1,
Fixing device 2, feed mechanism 3, slowspeed machine 4, sleeve 5, fixture 6 and position-limit mechanism 7；
The fixing device 2 is arranged at one end of the rack 1, the fastening apparatus can be fixed on object to be tightened
Surface；The slowspeed machine 4 is arranged at the side of the rack 1, and the axis of the slowspeed machine 4 by the feed mechanism 3
Line is vertical with the end face of the fixing device 2, and the feed mechanism 3 can adjust position of the slowspeed machine 4 with respect to rack 1
Put；The sleeve 5 is arranged on 4 axis of slowspeed machine by the fixture 6, and the sleeve 5 can be under the action of slowspeed machine 4
Locking nut；The position-limit mechanism 7 is arranged on the feed mechanism 3, uniform force and limit when enabling to the nut to fasten
Make the distance that the slowspeed machine 4 is fed.
Further, the feed mechanism 3 includes gear and the matched rack 301 of gear and handle 302；The tooth
Wheel is arranged in the rack 1, and the handle 302 with being arranged at the outside of rack 1 is connected；The 301 anodontia side of rack and institute
Slowspeed machine 4 is stated to be fixedly connected.
Further, the gear can also be multi-stage gear group so that feed accuracy higher.
Further, the rack 301 is equipped with the first fixed block 303 and the second fixed block 304, first fixed block
303 and both ends of second fixed block 304 respectively with the slowspeed machine 4 be connected, first fixed block 303 and described
The slowspeed machine 4 can be fixedly connected by two fixed blocks 304 with the rack 301.
Further, first fixed block 303 is arranged at motor shaft end, for fixing the motor shaft end of the motor；
Second fixed block 304 is used for the tail end for fixing motor.
Further, the position-limit mechanism 7 includes the block being arranged on the rack 301, can limit the motor
The distance advanced along its axis direction or retreated.
Further, one end of the sleeve 5 is equipped with fixing axle 501, and the fixing axle 501 is connected with the fixture 6；Separately
One end, which is equipped with, is used for the through hole 502 for accommodating nut and the cavity 503 for accommodating bolt external part.
Further, the fixing axle 501 is round table-like with the cooperation of fixture 6.
As shown in Figure 4 and Figure 5, further, the through hole 502 is the circle coordinated with nut.
Preferably, the rotating speed of the slowspeed machine 4 is 20r/min.
Further, electromagnetic coil is equipped with the fixing device 2, the electromagnetic coil can adsorb after being powered and wait to lock
Determine on the end face where nut.
Further, the fastening apparatus further includes controller, and the controller can control the logical of the electromagnetic coil
Disconnected, the controller can also control the rotating speed of the slowspeed machine 4.
Further, side opposite with motor in the rack 1 is equipped with handle 101, is additionally provided with the handle 101 anti-
Slipped Clove Hitch structure.
Correspondingly, the present embodiment additionally provides a kind of nut fastening method, comprises the following steps：
S1：The fastening apparatus is positioned over close to the appropriate location of nut to be tightened, and opens electromagnetic switch and causes tightly
It is fixed standby to be fixed on the position；
S2：Rotational handle 302, adjusting the relative position of the sleeve 5 and bolt makes it reach desired value；
S3：Start motor, motor drives 5 locking nut of fixture 6 and sleeve.
Embodiment three：
As shown in Figures 1 to 3, a kind of fastening apparatus for heat exchanger nut, the fastening apparatus are present embodiments provided
Including rack 1, fixing device 2, feed mechanism 3, slowspeed machine 4, sleeve 5, fixture 6 and position-limit mechanism 7；
The fixing device 2 is arranged at one end of the rack 1, and the fastening apparatus can be fixed on to the end of heat exchanger
Face；The slowspeed machine 4 is arranged at the side of the rack 1, and the axis of the slowspeed machine 4 by the feed mechanism 3
Vertical with the end face of the fixing device 2, the feed mechanism 3 can adjust position of the slowspeed machine 4 with respect to rack 1；
The sleeve 5 is arranged on 4 axis of slowspeed machine by the fixture 6, and the sleeve 5 can be locked under the action of slowspeed machine 4
Tight nut；The position-limit mechanism 7 is arranged on the feed mechanism 3, uniform force and limitation when enabling to the nut to fasten
The distance that the slowspeed machine 4 is fed.
Further, the feed mechanism 3 includes gear and the matched rack 301 of gear and handle 302；The tooth
Wheel is arranged in the rack 1, and the handle 302 with being arranged at the outside of rack 1 is connected；The 301 anodontia side of rack and institute
Slowspeed machine 4 is stated to be fixedly connected.
Further, the gear can also be multi-stage gear group so that feed accuracy higher.
Further, the rack 301 is equipped with the first fixed block 303 and the second fixed block 304, first fixed block
303 and both ends of second fixed block 304 respectively with the slowspeed machine 4 be connected, first fixed block 303 and described
The slowspeed machine 4 can be fixedly connected by two fixed blocks 304 with the rack 301.
Further, first fixed block 303 is arranged at motor shaft end, for fixing the motor shaft end of the motor；
Second fixed block 304 is used for the tail end for fixing motor.
Further, the position-limit mechanism 7 includes the block being arranged on the rack 301, can limit the motor
The distance advanced along its axis direction or retreated.
Further, one end of the sleeve 5 is equipped with fixing axle 501, and the fixing axle 501 is connected with the fixture 6；Separately
One end, which is equipped with, is used for the through hole 502 for accommodating nut and the cavity 503 for accommodating bolt external part.
Further, the fixing axle 501 is round table-like with the cooperation of fixture 6.
Further, the through hole 502 is the regular polygon coordinated with nut.
As shown in Figure 3, it is preferred that the regular polygon is to the dodecagon of axis protrusion per side.
Preferably, the rotating speed of the slowspeed machine 4 is 20r/min.
Further, electromagnetic coil is equipped with the fixing device 2, the electromagnetic coil can adsorb heat exchanger after being powered
End face on.
Further, the fastening apparatus further includes controller, and the controller can control the logical of the electromagnetic coil
Disconnected, the controller can also control the rotating speed of the slowspeed machine 4.
Further, side opposite with motor in the rack 1 is equipped with handle 101, is additionally provided with the handle 101 anti-
Slipped Clove Hitch structure.
Correspondingly, the present embodiment additionally provides a kind of fastening method of heat exchanger nut, comprises the following steps：
S1：The fastening apparatus is positioned over the end face of heat exchanger and close to the appropriate position of nut to be tightened, and is beaten
Electromagnetic switch is opened so that fastening apparatus is fixed on the position；
S2：Rotational handle 302, the relative position of the sleeve 5 and bolt is adjusted according to the requirement of spring force makes its arrival
The amount of spring compression of target；
S3：Start motor, motor drives 5 locking nut of fixture 6 and sleeve.
In the present embodiment, the fastening apparatus not only has that applied widely, practicality is good, high yield rate and safety
The advantages of performance is high, and adjusted by the amount of feeding of feed mechanism, moreover it is possible to control the decrement of each spring so that heat exchanger
Uniform force, meets its use demand.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of nut fastening apparatus, it is characterised in that the fastening apparatus includes rack (1), fixing device (2), feeding machine
Structure (3), slowspeed machine (4), sleeve (5), fixture (6) and position-limit mechanism (7)；
The fixing device (2) is arranged at one end of the rack (1), the fastening apparatus can be fixed on object to be tightened
Surface；The slowspeed machine (4) is arranged at the side of the rack (1), and the slowspeed machine by the feed mechanism (3)
(4) axis is vertical with the end face of the fixing device (2), and the feed mechanism (3) can adjust the slowspeed machine (4) phase
To the position of rack (1)；The sleeve (5) is arranged on slowspeed machine (4) axis by the fixture (6), sleeve (5) energy
Enough locking nuts under the action of slowspeed machine (4)；The position-limit mechanism (7) is arranged on the feed mechanism (3), can be made
Uniform force and the distance of limitation slowspeed machine (4) feeding when obtaining nut fastening.
A kind of 2. nut fastening apparatus according to claim 1, it is characterised in that the feed mechanism (3) include gear,
With the matched rack of gear (301) and handle (302)；The gear is arranged in the rack (1), and with being arranged at rack
(1) handle (302) connection on the outside of；The anodontia side of the rack (301) is fixedly connected with the slowspeed machine (4).
3. a kind of nut fastening apparatus according to claim 2, it is characterised in that the rack (301) is equipped with first
Fixed block (303) and the second fixed block (304), first fixed block (303) and second fixed block (304) respectively with institute
State the both ends connection of slowspeed machine (4), first fixed block (303) and second fixed block (304) can will be described low
Speed motor (4) is fixedly connected with the rack (301).
4. a kind of nut fastening apparatus described in any one in claim 1 or 2, it is characterised in that described spacing
Mechanism (7) includes the block being arranged on the rack (301), and the block can limit the motor along its axis direction
The distance advanced or retreated.
5. a kind of nut fastening apparatus according to claim 1, it is characterised in that one end of the sleeve (5) is equipped with solid
Dead axle (501), the fixing axle (501) are connected with the fixture (6)；The other end of the sleeve (5), which is equipped with, to be used to accommodate spiral shell
Female through hole (502) and the cavity (503) for accommodating bolt external part；The through hole (502) includes regular polygon and circle.
6. a kind of nut fastening apparatus according to claim 1, it is characterised in that the rotating speed of the slowspeed machine (4) is
15~30r/min.
7. a kind of nut fastening apparatus according to claim 1, it is characterised in that the rotating speed of the slowspeed machine (4) is
20r/min。
8. a kind of nut fastening apparatus according to claim 1, it is characterised in that electricity is equipped with the fixing device (2)
Magnetic coil, the electromagnetic coil can be adsorbed on the end face where nut to be locked after being powered.
A kind of 9. nut fastening apparatus described in any one in claim 1 or 8, it is characterised in that the fastening
Equipment further includes controller, and the controller can control the break-make of the electromagnetic coil, and the controller can also control institute
State the rotating speed of slowspeed machine (4).
10. a kind of nut fastening method, it is characterised in that comprise the following steps：
S1：The fastening apparatus is positioned over close to the appropriate location of nut to be tightened, and opens electromagnetic switch so that fastening is set
It is standby to be fixed on the position；
S2：Rotational handle (302), adjusting the relative position of the sleeve (5) and bolt makes it reach desired value；
S3：Start motor, motor drives fixture (6) and sleeve (5) locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315975.3A CN108015528A (en) | 2017-12-12 | 2017-12-12 | A kind of nut fastening apparatus and fastening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315975.3A CN108015528A (en) | 2017-12-12 | 2017-12-12 | A kind of nut fastening apparatus and fastening method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108015528A true CN108015528A (en) | 2018-05-11 |
Family
ID=62072927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711315975.3A Pending CN108015528A (en) | 2017-12-12 | 2017-12-12 | A kind of nut fastening apparatus and fastening method |
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| CN (1) | CN108015528A (en) |
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| CN103386606A (en) * | 2013-07-08 | 2013-11-13 | 广西大学 | Safe screw assembling device capable of automatically feeding and synchronously assembling and disassembling workpieces |
| CN104175106A (en) * | 2014-07-23 | 2014-12-03 | 大连豪森瑞德设备制造有限公司 | Specially-shaped self-correcting suspended clutch press-fitting tightening machine |
| CN104259837A (en) * | 2014-08-18 | 2015-01-07 | 重庆齿轮箱有限责任公司 | Nut tightening machine |
| CN204868058U (en) * | 2015-08-06 | 2015-12-16 | 东莞市天蓝自动化设备有限公司 | Power battery twists nut device |
| CN106826206A (en) * | 2017-03-10 | 2017-06-13 | 杭州凯贝奈特科技有限公司 | A kind of casing the turn of the screw mechanism and cabinet assembly system |
| CN207771246U (en) * | 2017-12-12 | 2018-08-28 | 南通星球石墨设备有限公司 | A kind of nut fastening apparatus |
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