CN106181343A - The automatic screwing down apparatus of band detection function - Google Patents
The automatic screwing down apparatus of band detection function Download PDFInfo
- Publication number
- CN106181343A CN106181343A CN201610625649.1A CN201610625649A CN106181343A CN 106181343 A CN106181343 A CN 106181343A CN 201610625649 A CN201610625649 A CN 201610625649A CN 106181343 A CN106181343 A CN 106181343A
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- CN
- China
- Prior art keywords
- seat
- automatic
- load bearing
- detection function
- bearing seat
- 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
- B23P19/069—Multi-spindle machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses the automatic screwing down apparatus of a kind of band detection function, including be provided with installing hole load bearing seat, be positioned at the proximity switch below installing hole, be movably arranged on installing hole and can load bearing seat moves up and down relatively movable part, the catotropic automatic screwdriver of cutter, for automatic screwdriver being transferred to the transfer device of the top of movable part；The clutch end of this transfer device connects driving means；This automatic screwdriver is connected with the clutch end of driving means, and is driven automatic screwdriver to move up and down by this driving means；Between described movable part and load bearing seat, spring is installed, the elastic acting force that this spring is moved upward to outside proximity switch induction region for providing the part that innervates.The present invention can automatic tightening screw, conveying screw, thus the labor intensity of operator can be reduced, improve work efficiency；And, also can detect screw-driving result, thus the reliability of this equipment can be improved.
Description
Technical field
The present invention relates to the automatic screwing down apparatus of a kind of band detection function.
Background technology
During Product Assembly, usually through screw connection portion part.At present, mainly screwdriver hands is held by operator
Moving and tighten screw, but tighten screw manually, the labor intensity easily causing operator is relatively big, thus far from meeting work
The requirement of industry automatization.
Summary of the invention
In order to overcome the deficiencies in the prior art, the automatic tightening that it is an object of the invention to provide a kind of band detection function sets
Standby, it can tighten screw, thus can reduce the labor intensity of operator.
For solving the problems referred to above, the technical solution adopted in the present invention is as follows:
The automatic screwing down apparatus of band detection function, including being provided with the load bearing seat of installing hole, being positioned at connecing below installing hole
Closely switch, be movably arranged in installing hole and can load bearing seat moves up and down relatively movable part, the catotropic automatic screwdriver of cutter,
For automatic screwdriver being transferred to the transfer device of the top of movable part；The clutch end of this transfer device connects driving
Device；This automatic screwdriver is connected with the clutch end of driving means, and is driven automatic screwdriver upper and lower by this driving means
Mobile；This movable part is formed as the sensing object of proximity switch；Described installing hole runs through the upper and lower surface of load bearing seat；Described activity
Being provided with spring between part and load bearing seat, this spring is moved upward to outside proximity switch induction region for the offer part that innervates
Elastic acting force.
Transfer device includes supporting seat, mounting seat, being arranged on support seat and for driving mounting seat vertically
The elevating mechanism of lower movement, pedestal, it is arranged on pedestal and supports, for driving, the horizontal stroke that seat moves along the length direction of load bearing seat
Moving mechanism；Described mounting seat is formed as the clutch end of transfer device.
Described driving means includes the cylinder that cylinder body is connected with mounting seat；The piston rod of this cylinder is fixedly connected with slip
Seat, this sliding seat is slidably matched with mounting seat；Described automatic screwdriver is fixedly connected with the sliding seat.
Described elevating mechanism includes in the first screw mandrel being vertically arranged, body is fixed on support seat and for driving first
The first motor that screw mandrel rotates；The first feed screw nut being socketed in matchingly on the first screw mandrel it is provided with in described mounting seat；Should
Mounting seat is slidably matched with support seat in the way of spline.
This support seat has the first guide part vertically extended, and described mounting seat has and is slidably mounted in
The first auxiliary section on one guide part；Described first guide part is the first line slideway, and the first auxiliary section is the first slide block.
Described transverse-moving mechanism includes that axis direction second screw mandrel parallel with the length direction of load bearing seat, body are fixed on base
On seat and for the second motor driving the second screw mandrel to rotate；It is provided with on described support seat and is socketed in matchingly on the second screw mandrel
The second feed screw nut；Support seat to be slidably matched with pedestal in the way of spline.
Described pedestal has bearing of trend and consistent the second guide part of the second screw mandrel axis direction；This support seat has can
The second auxiliary section being slidably mounted on the second guide part；Described second guide part is the second line slideway, the second auxiliary section
It it is the second slide block.
Being provided with trocar sheath in this mounting seat, the lower end activity of this automatic screwdriver is located in trocar sheath；This trocar sheath
Lower open end be provided with the collet for clamp screws；This collet includes around trocar sheath circumferential arrangement and for clamping
At least two clamping limb of screw；The upper end thereof of described clamping limb is in the outside of trocar sheath, and the upper end of clamping limb and overcoat
Elastic reset member is installed between pipe.
The automatic screwing down apparatus of this band detection function also includes for by Work-sheet pressing compression device on load bearing seat；Should
Automatic screwdriver is pneumatic screw driver.
The automatic screwing down apparatus of this band detection function also includes controlling device, for carrying the conveyer device of load bearing seat；Should
Proximity switch is for sending signal when movable part enters proximal in inductive switching region to control device；This control device is used for
Conveyer device work is controlled when receiving the signal of proximity switch.
Compared to existing technology, the beneficial effects of the present invention is:
The present invention, by using automatic screwdriver, driving means, the combination of transfer device to design, can tighten screw, thus
The labor intensity of operator can be reduced, improve work efficiency；And, also can detect screw-driving result, thus can be improved this
The reliability of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the cooperation schematic diagram of transfer device, automatic screwdriver, driving means；
Fig. 4 is the structural representation of elevating mechanism；
Fig. 5 is the cooperation schematic diagram of load bearing seat, movable part；
Fig. 6 is the working state schematic representation of the present invention；
Wherein, 10, mounting seat；20, transverse-moving mechanism；30, elevating mechanism；31, the first screw mandrel；32, the first motor；33,
One feed screw nut；40, automatic screwdriver；41, collet；50, driving means；60, load bearing seat；71, proximity switch；72, live
Moving part；73, spring；74, fixed mount；80, compression device；90, feeding device for nail；100, workpiece.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, the present invention is described further:
As shown in figures 1 to 6, the automatic screwing down apparatus of band detection function, including being provided with the load bearing seat 60 of installing hole, being positioned at
Proximity switch 71 below installing hole, be movably arranged on installing hole in and can load bearing seat 60 moves up and down relatively movable part 72,
The catotropic automatic screwdriver of cutter 40, for automatic screwdriver 40 being transferred to the transfer device of the top of movable part 72；This shifting
The clutch end sending device connects driving means 50；This automatic screwdriver 40 connects with the clutch end of driving means 50
Connect, and driven automatic screwdriver 40 to move up and down by this driving means 50；This movable part 72 is formed as the sensing of proximity switch 71
Object；Described installing hole runs through the upper and lower surface of load bearing seat 60；Between described movable part 72 and load bearing seat 60, spring 73 is installed,
The elastic acting force that this spring 73 is moved upward to outside proximity switch 71 induction region for providing the part 72 that innervates.And according to
Common knowledge, this automatic screwdriver 40 is for the instrument driving screw to rotate, and can use pneumatic screw driver, electric screw driver
Deng.In the present embodiment, this automatic screwdriver 40 uses pneumatic screw driver.
When needs tighten screw, first workpiece 100 is placed on load bearing seat 60, and just makes the tapped through hole of workpiece 100
For movable part 72, then moved together with automatic screwdriver 40 and by automatic screwdriver 40 by transfer device transfer driving device 50
Delivering to the top of movable part 72, driving means 50 drives automatic screwdriver 40 to move down and the screw engagement on this tapped through hole, and
Drive screw to rotate by automatic screwdriver 40, and along with automatic screwdriver 40 continue move down, screw can be made gradually to screw thread
Precession in through hole, thus screw can be tightened, to reduce the labor intensity of operator, improve work efficiency.And at screw gradually
During moving down, screw is by movable part 72 down pushing tow, and now, spring 73 is by compression, when automatic screwdriver 40 reaches
When stopping operating to specifying moment of torsion, if movable part 72 enters proximal to switch the detection range of 71, proximity switch 71 is made to be triggered,
The i.e. explanation screw tightening testing result that puts in place is qualified；Otherwise, this screw is judged to twist not in place assembling unsuccessfully.When this workpiece
After 100 remove from load bearing seat 60, movable part 72 automatically resets under the elastic acting force effect of spring 73.
Preferably, transfer device includes supporting seat, mounting seat 10, being arranged on support seat and for driving mounting seat 10 edge
Elevating mechanism 30 that vertical direction moves up and down, pedestal, it is arranged on pedestal and for driving the length supporting seat along load bearing seat 60
The transverse-moving mechanism 20 that degree direction is moved；Described mounting seat 10 is formed as the clutch end of transfer device.And it is above-mentioned by using
Structure, can drive driving means 50 to lift together with automatic screwdriver 40, traversing along the length direction of load bearing seat 60, with regulation automatically
The position of screwdriver 40.
Described driving means 50 includes the gas that cylinder body is connected with the clutch end (namely mounting seat 10) of transfer device
Cylinder.The piston rod of this cylinder is fixedly connected with sliding seat, and this sliding seat is slidably matched with mounting seat 10；Automatic screwdriver 40 is with sliding
Dynamic seat is fixing to be connected, and now, sliding seat is formed as the clutch end of driving means 50.Screw is driven to turn at automatic screwdriver 40
During Dong, the piston rod of available cylinder drives sliding seat to move downward together with automatic screwdriver 40.And it is above-mentioned by using
Structure, can be convenient to assembling.
Described elevating mechanism 30 includes in the first screw mandrel 31 being vertically arranged, body is fixed on support seat and for driving
The first motor 32 that first screw mandrel 31 rotates；First be socketed in matchingly on the first screw mandrel 31 it is provided with in described mounting seat 10
Feed screw nut 33；This mounting seat 10 is slidably matched with support seat in the way of spline, say, that mounting seat 10 can be relative to propping up
Support seat slides, and prevents mounting seat 10 from rotating relative to supporting seat.When the first motor 32 works, the first screw mandrel 31 turns can be driven
Dynamic, thus mounting seat 10 can be driven to lift together with driving means 50, automatic screwdriver 40.
This support seat has the first guide part vertically extended, and described mounting seat 10 has the first auxiliary section, should
First auxiliary section is slidably mounted on the first guide part, and the present invention realizes mounting seat 10 in this way in the way of spline
It is slidably matched with supporting seat.Wherein, described first guide part is the first line slideway, and described first auxiliary section is the first slide block.
Certainly, the first guide part, the first auxiliary section are not limited to said structure, also can use other, and such as, described first guide part can
Being the first rectangular guide bar, described first auxiliary section is the first sleeve being sleeved on the first rectangular guide bar.Certainly, also can be by first
The quantity of guide part is set at least two, and the quantity of the first auxiliary section is consistent with the quantity of the first guide part, and difference one
One is corresponding.
Preferably, described transverse-moving mechanism 20 include axis direction second screw mandrel parallel with the length direction of load bearing seat 60,
Body is fixed on pedestal and for the second motor driving the second screw mandrel to rotate；It is provided with on described support seat and is socketed matchingly
The second feed screw nut on the second screw mandrel；Support seat to be slidably matched with pedestal in the way of spline, say, that supporting seat can
Slide relative to pedestal, and prevent from supporting seat relative to pedestal rotation.When the second motor work, the second screw mandrel can be driven to turn
Dynamic, thus can drive and support seat together with elevating mechanism 30, driving means 50, automatic screwdriver 40 along the length direction of load bearing seat 60
Mobile.
Described pedestal has bearing of trend and consistent the second guide part of the second screw mandrel axis direction；This support seat has
Two auxiliary sections, this second auxiliary section is slidably mounted on the second guide part, the present invention in this way realize support seat with
The mode of spline is slidably matched with pedestal.Wherein, described second guide part is the second line slideway, and described second auxiliary section is
Two slide blocks.Certainly, the second guide part, the second auxiliary section are not limited to said structure, also can use other, such as, and described second
Guide part can be the second rectangular guide bar, and described second auxiliary section can be the second sleeve being sleeved on the second rectangular guide bar.Certainly,
The quantity of the second guide part also can be set at least two, and the quantity one of the quantity of the second auxiliary section and the second guide part
Cause, and one_to_one corresponding respectively.
And in actual design, automatic screwdriver 40, driving means 50 can be each equipped with in the left and right sides of load bearing seat 60
And transfer device, to synchronize workpiece 100 both sides to be tightened screw, to improve work efficiency.
The automatic screwing down apparatus of this band detection function also includes the casting die dress for being pressed on load bearing seat 60 by workpiece 100
Put 80, to improve the stability that workpiece 100 is placed on load bearing seat 60.Wherein, this compression device 80 can use the most existing
Various compression devices 80, such as, it may include be positioned at the wedge above load bearing seat 60, for the lifting unit driving wedge to lift
Part.Wherein, this Lift Part can be cylinder, linear electric motors, oil cylinder etc..
Being provided with trocar sheath in this mounting seat 10, the lower end activity of this automatic screwdriver 40 is located in trocar sheath, and this is outer
The lower open end of sleeve pipe is provided with the collet 41 for clamp screws；This collet 41 includes around trocar sheath circumferential arrangement also
At least two clamping limb for clamp screws；The upper end thereof of described clamping limb is in the outside of trocar sheath, and clamping limb is upper
Between end and trocar sheath, elastic reset member is installed.And according to common knowledge, this elastic reset member can be back-moving spring, torsion
Spring etc..In use, utilize each clamping limb of collet 41 to be handled by screw clamp, and transfer automatic screw by transfer device
Cutter 40 and screw, and screw is transferred on the tapped through hole of workpiece 100, now, driving means 50 drives automatic screwdriver 40
Move down and be meshed with screw, and along with automatic screwdriver 40 continue move down, screw can be ejected from collet 41, and and this
Meanwhile, automatic screwdriver 40 drives screw to rotate, thus can be by screw-driving on workpiece 100.
Certainly, in order to improve the convenience of screw supply, may also be configured with for carrying sending of screw toward collet 41
Spike devices 90.
Concrete, the bottom of this load bearing seat 60 is fixed with fixed mount 74, and described proximity switch 71 is fixed on fixed mount 74.
This fixed mount 74 includes the riser that the transverse slat being fixed on load bearing seat 60 is connected with transverse slat；Described proximity switch 71 is fixed on perpendicular
On plate, to be convenient to the fixing of proximity switch 71.
Described movable part 72 is screw, and the lower end of this screw is threaded the spacing spiral shell being positioned at immediately below installing hole sidewall
Female.And by using said structure, assembling can be convenient to, reduce cost of manufacture.
The automatic screwing down apparatus of this band detection function also includes controlling device, for carrying the conveyer device of load bearing seat 60；
This proximity switch 71 is for sending signal when movable part 72 enters proximal to switch in 71 induction regions to control device；This control
Device works for controlling conveyer device when receiving the signal of proximity switch 71, thus when screw tightening puts in place, can profit
With conveyer device, load bearing seat 60 is carried.Certainly, also can be with when screw tightening is not in place, logical equipped with alarm device
Cross alarm device to report to the police, be convenient to remind staff.Wherein, described alarm device can use display lamp, buzzer or two
Person's combination etc..
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various
Corresponding change and deformation, and all these change and deformation all should belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. the automatic screwing down apparatus of band detection function, it is characterised in that: include being provided with the load bearing seat of installing hole, being positioned at installing hole
The proximity switch of lower section, be movably arranged in installing hole and can load bearing seat moves up and down relatively movable part, cutter catotropic oneself
Move screwdriver, for automatic screwdriver being transferred to the transfer device of the top of movable part；The clutch end of this transfer device
Connect and have driving means；This automatic screwdriver is connected with the clutch end of driving means, and is driven automatically by this driving means
Screwdriver moves up and down；This movable part is formed as the sensing object of proximity switch；Described installing hole runs through the upper following table of load bearing seat
Face；Being provided with spring between described movable part and load bearing seat, this spring is moved upward to close to opening for the offer part that innervates
Close the elastic acting force outside induction region.
2. the automatic screwing down apparatus of band detection function as claimed in claim 1, it is characterised in that: transfer device includes supporting
Seat, mounting seat, be arranged on support seat on and for the elevating mechanism driving mounting seat vertically to move up and down, pedestal, peace
It is contained on pedestal and supports, for driving, the transverse-moving mechanism that seat moves along the length direction of load bearing seat；Described mounting seat is formed as moving
Send the clutch end of device.
3. the automatic screwing down apparatus of band detection function as claimed in claim 2, it is characterised in that: described driving means includes cylinder
The cylinder that body is connected with mounting seat；The piston rod of this cylinder is fixedly connected with sliding seat, and this sliding seat is slidably matched with mounting seat；
Described automatic screwdriver is fixedly connected with the sliding seat.
4. the automatic screwing down apparatus of band detection function as claimed in claim 2, it is characterised in that: described elevating mechanism include in
The first screw mandrel, the body that are vertically arranged are fixed on and support on seat and for the first motor driving the first screw mandrel to rotate；Described peace
It is provided with, on dress seat, the first feed screw nut being socketed in matchingly on the first screw mandrel；This mounting seat is in the way of spline and supports seat
It is slidably matched.
5. the automatic screwing down apparatus of band detection function as claimed in claim 4, it is characterised in that: this support seat has along vertically
The first guide part that direction extends, described mounting seat has the first auxiliary section being slidably mounted on the first guide part；Institute
Stating the first guide part is the first line slideway, and the first auxiliary section is the first slide block.
6. the automatic screwing down apparatus of band detection function as claimed in claim 2, it is characterised in that: described transverse-moving mechanism includes axle
Line direction second screw mandrel parallel with the length direction of load bearing seat, body are fixed on pedestal and for driving the second screw mandrel to rotate
The second motor；The second feed screw nut being socketed in matchingly on the second screw mandrel it is provided with on described support seat；Support seat with only
The mode turned is slidably matched with pedestal.
7. the automatic screwing down apparatus of band detection function as claimed in claim 6, it is characterised in that: described pedestal has extension side
To second guide part consistent with the second screw mandrel axis direction；This support seat has and is slidably mounted on the second guide part
Second auxiliary section；Described second guide part is the second line slideway, and the second auxiliary section is the second slide block.
8. the automatic screwing down apparatus of band detection function as claimed in claim 2, it is characterised in that: outside being provided with in this mounting seat
Sleeve pipe, the lower end activity of this automatic screwdriver is located in trocar sheath；The lower open end of this trocar sheath is provided with for clamp screws
Collet；This collet includes around trocar sheath circumferential arrangement and at least two clamping limb of clamp screws；Described
The upper end thereof of clamping limb is provided with elastic reset member between the outside of trocar sheath, and the upper end of clamping limb and trocar sheath.
9. the automatic screwing down apparatus of band detection function as claimed in claim 1, it is characterised in that: this band detects the automatic of function
Tightening device also includes for by Work-sheet pressing compression device on load bearing seat；This automatic screwdriver is pneumatic screw driver.
10. the automatic screwing down apparatus of band detection function as claimed in claim 1, it is characterised in that: this band detects oneself of function
Dynamic tightening device also includes controlling device, for carrying the conveyer device of load bearing seat；This proximity switch is for entering at movable part
Signal is sent to control device time in proximity switch induction region；This control device is for when receiving the signal of proximity switch
Control conveyer device work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610625649.1A CN106181343A (en) | 2016-07-29 | 2016-07-29 | The automatic screwing down apparatus of band detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610625649.1A CN106181343A (en) | 2016-07-29 | 2016-07-29 | The automatic screwing down apparatus of band detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106181343A true CN106181343A (en) | 2016-12-07 |
Family
ID=57498262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610625649.1A Pending CN106181343A (en) | 2016-07-29 | 2016-07-29 | The automatic screwing down apparatus of band detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106181343A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274227A (en) * | 2018-03-05 | 2018-07-13 | 王聪 | Automatic take-up and its working method for bolt connecting elements |
| CN110989587A (en) * | 2019-11-29 | 2020-04-10 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Intelligent robot fastening control system and method |
| CN112045386A (en) * | 2020-09-01 | 2020-12-08 | 浙江大威超声波设备有限公司 | Small ultrasonic transducer assembling equipment |
| CN112109212A (en) * | 2020-09-09 | 2020-12-22 | 江苏永盟建筑钢品有限公司 | Automatic equipment for machining floor bearing plate assembly for pouring reinforced cement |
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| JPH06206128A (en) * | 1993-01-11 | 1994-07-26 | Toshiba Corp | Large diameter nut tightening device |
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| CN1903480A (en) * | 2006-08-04 | 2007-01-31 | 王挺 | Device for detecting place of casting blank |
| CN102729037A (en) * | 2011-04-11 | 2012-10-17 | 中国国际海运集装箱(集团)股份有限公司 | Semi-automatic screwing-in equipment for tapping screw |
| CN204413555U (en) * | 2014-12-16 | 2015-06-24 | 东莞市中天自动化科技有限公司 | Screw tightening mechanism |
| CN204565595U (en) * | 2015-01-15 | 2015-08-19 | 东莞新爱荣机械自动化设备有限公司 | A kind of double-side-turning automatic lock screws appts |
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| JPH0818199B2 (en) * | 1986-12-19 | 1996-02-28 | 松下電器産業株式会社 | Screw tightening device |
| JPH06206128A (en) * | 1993-01-11 | 1994-07-26 | Toshiba Corp | Large diameter nut tightening device |
| CN1903480A (en) * | 2006-08-04 | 2007-01-31 | 王挺 | Device for detecting place of casting blank |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274227A (en) * | 2018-03-05 | 2018-07-13 | 王聪 | Automatic take-up and its working method for bolt connecting elements |
| CN108274227B (en) * | 2018-03-05 | 2023-09-26 | 王聪 | Automatic tightening device for bolt connecting member and working method thereof |
| CN110989587A (en) * | 2019-11-29 | 2020-04-10 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Intelligent robot fastening control system and method |
| CN110989587B (en) * | 2019-11-29 | 2023-11-17 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Intelligent fastening control system and method for robot |
| CN112045386A (en) * | 2020-09-01 | 2020-12-08 | 浙江大威超声波设备有限公司 | Small ultrasonic transducer assembling equipment |
| CN112045386B (en) * | 2020-09-01 | 2022-09-09 | 浙江大威超声波设备有限公司 | Small ultrasonic transducer assembling equipment |
| CN112109212A (en) * | 2020-09-09 | 2020-12-22 | 江苏永盟建筑钢品有限公司 | Automatic equipment for machining floor bearing plate assembly for pouring reinforced cement |
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Application publication date: 20161207 |
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