The application is Chinese patent (denomination of invention:Automatic locking screw machine, application number:2015106947090 dates of application:
Divisional application 2015-10-22).
The content of the invention
For shortcoming present in above-mentioned technology, the present invention provides a kind of yield that locks that can improve screw
Automatic locking screw machine.
A kind of automatic locking screw machine, including lifting assembly, lock component, guidance set, absorbent module, detection components and control
Molding group, component, the guidance set, the absorbent module and the detection components of locking can be in the drive of lifting assembly
Lower carry out elevating movement, the control module are used to control the absorbent module and the absorption for locking component completion to screw
Operated with locking, the lifting assembly includes lifting structure and the fixed structure being fixed on the lifting structure, the lifting
Structure includes locating piece, guide part, sliding part, bolster and actuator, and the locating piece is used to mutually fix with a stent, so that
The automatic locking screw machine is fixed on setting position, and the guide part is mutually fixed with locating piece, and the sliding part is slideably positioned in
On the guide part, and elevating movement can be carried out by counter-guide under the driving of the actuator, the bolster is arranged at
Between guide part and the sliding part, for the sliding part, into row buffering, the actuator to be in the control for controlling module
The system lower driving sliding part is moved relative to the guide part, and the fixed structure is fixed on sliding part, described to lock component
It is fixed on the fixed structure, the guidance set is sheathed on the absorbent module and is fixed on the fixed structure, institute
State the suction nozzle for being used to adsorb screw that absorbent module includes being connected with a vacuum generator.The suction nozzle includes body and positioned at this
The absorption end of body one end, the gas channel of the absorption end and body is provided through in the suction nozzle, and the absorption end includes
End, the madial wall opposite with the gas channel and the stop surface being arranged on the madial wall away from the body, institute
When stating suction screw, the screw enters the absorption end and by the stop surface backstop, the inner side by the end
Diversion trench is additionally provided with wall, the diversion trench is extended from the end to the stop surface in the shape of a spiral, and is stopped through described
Block face is connected with the gas channel.
In above-mentioned automatic locking screw machine, when screw initially enters the absorption end by the end, spiral helicine water conservancy diversion
Groove can make air form rotating air-flow in the gas channel positioned at absorption end section, so that screw is rotated into absorption
In end, the probability that screw is blocked and shifted is reduced.In this way, in screwdriver lock screw, screw can be greatly improved
Lock yield.
Embodiment
Referring to Fig. 1, a kind of automatic locking screw machine 100, is connected by gas-guide tube 200 with vacuum generator (not shown).
Under the action of vacuum generator, automatic locking screw machine 100 generates less than the air pressure of atmospheric pressure, so as to produce adsorption capacity with from spiral shell
Screw 300 is adsorbed in silk supply machine (not shown).Then, screw 300 is locked product (not shown) by automatic locking screw machine 100
On.
Automatic locking screw machine 100 includes lifting assembly 10, locks component 20, guidance set 30, absorbent module 40, detection group
Part 50 and control module 60.Locking component 20, guidance set 30, absorbent module 40 and detection components 50 can be in lifting assembly 10
Drive lower progress elevating movement.Locking component 20 and guidance set 30 can move relative adsorption component 40 under external force.Control
Molding group 60 is used to control absorbent module 40 and lock component 20 to complete the absorption to screw 300 and lock operation.
Referring to Fig. 2, lifting assembly 10 includes lifting structure 11 and the fixed structure 12 being fixed on lifting structure 11.Rise
Drop structure 11 includes locating piece 111, guide part 112, sliding part 113, bolster 114 and actuator 115.Locating piece 111 is used for
Mutually fixed with a stent (not shown), so that automatic locking screw machine 100 is fixed on specific location.Guide part 112 and locating piece 111
It is mutually fixed.Sliding part 113 is slideably positioned on guide part 112, and can under the driving of actuator 115 counter-guide 112 into
Row elevating movement.Bolster 114 is arranged between guide part 112 and sliding part 113, is made for playing buffering to sliding part 113
With.Driving 113 counter-guide 112 of sliding part under the control of control module 60 of actuator 115 moves.Actuator 115 can be with
For compression cylinder equal power device.Fixed structure 12 is fixed on sliding part 113.Fixed structure 12 includes connector 121 and folder
Gripping member 122.Connector 121 is fixed with sliding part 113 and 122 phase of clamping piece respectively.What clamping piece 122 was oppositely arranged including two
Clamping part 1221.Two clamping parts 1221 from opposite sandwich and fixation lock component 20 so that lock component 20 with
Sliding part 113, counter-guide 112 carries out elevating movement together.
Fig. 3 and Fig. 4 are referred to, locking component 20 includes drive division 21, is removably installed in the spiral shell of 21 one end of drive division
Silk knife 22 and the elastic component 23 being sheathed on screwdriver 22.Drive division 21 is held between two clamping parts 1221, so as to lock
Component 20 is fixed on fixed structure 12.The driving screwdriver 22 under the control of control module 60 of drive division 21 rotates, with to spiral shell
Silk 300 carries out locking operation.Drive division 21 is additionally operable to locking degree of the control screwdriver 22 to screw 300.When the lock of screw 300
When tight degree reaches predetermined value, drive division 21, which sends to lock, completes signal to module 60 is controlled, to control drive division 21 to stop driving
Dynamic screwdriver 22 rotates.Elastic component 23 is a compression spring.One end of elastic component 23 is resisted against on drive division 21, and the other end is supported
In in absorbent module 40.
Guidance set 30 includes hollow cylindrical sleeve 31 and the guide part 32 for being fixed on 31 one end of sleeve.Sleeve 31 includes
The opposite bottom 312 in top 311 and top 311 and the side wall 313 being connected between top 311 and bottom 312.Top 311 with
121 phase of connector is fixed.Bottom 312 is fixed with 32 phase of guide part.Two opposite perforates 3131 are provided with side wall 313.Lead
It is fixed on to portion 32 by screw locking mode on the bottom 312 of sleeve 31.Guide part 32 includes being inserted in convex in sleeve 31
Column 321 and the pilot hole 322 through pillar 321.
Absorbent module 40 includes connecting portion 41 and the suction nozzle 42 fixed with 41 phase of connecting portion.Connecting portion 41 is contained in sleeve 31
It is interior, and can relative sleeve 31 slide.Connecting portion 41 includes top 411, the bottom 412 opposite with top 411 and through top
411 and the through hole 413 of bottom 412.Top 411 is abutted against with elastic component 23.Gas-guide tube 200 passes through the perforate 3131 on sleeve 31
It is fixed on connecting portion 41, and is connected with through hole 413.Suction nozzle 42 may pass through pilot hole 322 and expose to guidance set 30, and can be
Component 30 is oppositely oriented under the guiding role of pilot hole 322 to move.Suction nozzle 42 includes body 421 and is arranged at the phase of body 421
Fixing end 422 and absorption end 423 to both ends.Absorption end 423, body 421 and fixing end 422 are provided through in suction nozzle 42
Gas channel 424.Fixing end 422 is screwed together in the bottom 412 of connecting portion 41, so that suction nozzle 42 is fixed with 41 phase of connecting portion.Air-flow
Passage 424 is connected via fixing end 422 with through hole 413.Outside air can be in the work for the vacuum generator being connected with through hole 413
Enter under via gas channel 424 in suction nozzle 42, and the adsorption capacity for being used for adsorbing screw 300 is produced at absorption end 423.
Referring to Fig. 5, absorption end 423 includes end 4231, the inner side opposite with gas channel 424 away from body 421
Wall 4232 and it is spaced a predetermined distance from madial wall 4232 the vertical stop surface protruded into gas channel 424 with end 4231
4233.End 4231 includes the end face 4234 vertical with madial wall 4232 and is connected between end face 4234 and madial wall 4232
Guiding face 4235.4235 opposing end surface 4234 of guiding face tilts.Guiding face 4235 be used for adsorb end 423 adsorb screw when pair
Screw 300 plays guide function, so that screw 300 is easier to enter absorption end 423.Stop surface 4233 in a ring, and and end face
4234 is parallel.Stop surface 4233 is used for the backstop screw 300 when screw 300 enters absorption end 423, and screw 300 blocks backstop
The gas channel 424 at 4233 center of face.Screwdriver 22 is played in 22 lock screw 300 of screwdriver at the center of stop surface 4233
, there is the probability rocked to reduce screwdriver 22 in position-limiting action.Absorption end 423 further includes some be arranged on madial wall 4232
Diversion trench 4236.Some diversion trenches 4236 are equally spaced on madial wall 4232.Each diversion trench 4236 is by end
4231 extend to stop surface 4233 in the shape of a spiral, and are connected through stop surface 4233 with gas channel 424.In this way, work as screw
300 when resting on stop surface 4233, and external air flow still is able to enter in gas channel 424 by diversion trench 4236.In this reality
Apply in mode, the helical angle of diversion trench 4236 is 30 °.Width, depth and the anglec of rotation of diversion trench 4236 can be according to being adsorbed
The specification of screw 300 is different and adjusts, so as to produce suitable swirling eddy in absorption end 423.
Detection components 50 are used to detect screwdriver 22 and adsorb whether the screw 300 that end 423 is adsorbed contacts, and in screwdriver
22 screws 300 adsorbed with absorption end 423 send detection signal when contacting and extremely control module 60, and then control screwdriver 22 to start
Rotate with lock screw 300.Detection components 50 include being spaced a predetermined distance the first detection piece 51 and the second detection piece 52 of setting.
First detection piece 51 is fixed on connector 121.Second detection piece 52 is fixed on connecting portion through the perforate 3131 on sleeve 31
On 41.Above-mentioned preset distance moves relative to screw 300 for screwdriver 22 and contacts required ultimate range.In present embodiment
In, the first detection piece 51 is photoelectric sensor, it includes the light emitting portion being oppositely arranged and light receiver.Light receiver is used to connect
Receive the light that light emitting portion is sent.Second detection piece 52 is the bar of strip.When the screw that screwdriver 22 is adsorbed with absorption end 423
During 300 contact, the second detection piece 52 is between light emitting portion and light receiver and stops that light receiver receives light emitting portion hair
The light gone out.At this time, light receiver produces above-mentioned detection signal and sends to control module 60.
Module 60 is controlled to be used for the actuator 115 for responding the detection signal control lifting assembly 10 that the first detection piece 51 is sent
Stop driving sliding part 113 to decline, and control the drive division 21 for locking component 20 to start to drive screwdriver 22 to rotate to lock spiral shell
Silk 300.Control module 60 is additionally operable to the actuator 115 for locking completion signal control lifting assembly 10 that response drive division 21 is sent
Driving sliding part 113 rises.
When assembling automatic locking screw machine 100, first, user is fixed on the fixed structure of lifting assembly 10 by component 20 is locked
On 12.Secondly, absorbent module 40 is sheathed on screwdriver 22 by user.At this time, screwdriver 22 passes through the through hole on connecting portion 41
413 enter in the gas channel 424 of suction nozzle 42.The both ends of elastic component 23 are resisted against the top of drive division 21 and connecting portion 41 respectively
On 411.Then, guidance set 30 is sheathed in absorbent module 40 by user, and is fixed on fixed structure 12.At this time, adsorb
Component 40 is oppositely oriented component 30 and is in initial position.Supported under the elastic force effect of elastic component 23 bottom 412 of connecting portion 41
In on the pillar 321 of guide part 32.The pilot hole 322 of suction nozzle 42 through guide part 32 exposes to guidance set 30.Then, user
First detection piece 51 of detection components 50 is fixed on fixed structure 12, and the second detection piece 52 is fixed on connecting portion 41
On.Finally, user makes the through hole 413 on connecting portion 41 be connected with vacuum generator by gas-guide tube 200.
The operation principle of automatic locking screw machine 100 is as follows:First, vacuum generator is started to work, so that outside air passes through
Vacuum generator is entered by suction nozzle 42, connecting portion 41, so as to produce adsorption capacity at absorption end 423.Secondly, automatic locking screw machine
100 adsorb screw 300 under the control of lifting assembly 10 from screw feeding machine, and screw 300 is directed at product to be locked
On screw hole.Then, lifting assembly 10 drives under the control of control module 60 locks component 20, guidance set 30, absorption
Component 40 and detection components 50 move down.When the screw 300 for adsorbing the absorption of end 423 is contacted with product, screw 300, absorption
40 and second detection piece 52 of component stops moving down under the backstop of product.Lock component 20, guidance set 30 and first is examined
Survey part 51 to continue to move down under the action of lifting assembly 10, so that screwdriver 22 is contacted with screw 300.In the process,
Elastic component 23 produces elastic-restoring force by compression.The distance between first detection piece 51 and the second detection piece 52 are gradually reduced.
When screwdriver 22 is contacted with the screw 300 that absorption end 423 is adsorbed, the first detection piece 51 detects the second detection piece 52.At this time,
First detection piece 51 sends detection signal to control module 60.Module 60 is controlled to respond detection signal control lifting assembly 10
Actuator 115 stops driving sliding part 113 and declines, and controls the drive division 21 for locking component 20 to start to drive 22 turns of screwdriver
It is dynamic.Screwdriver 22 passes through the gas channel 424 at the center of stop surface 4233, and locks spiral shell under the position-limiting action of stop surface 4233
Silk 300.When the locking degree of screw 300 reaches predetermined value, drive division 21 makes screwdriver 22 stop operating, and sends and locked
Module 60 is extremely controlled into signal.The actuator 115 that control module 60 locks completion signal control lifting assembly 10 according to this drives
Sliding part 113 rises, and is moved up so that locking component 20, guidance set 30, absorbent module 40 and detection components 50.Absorption
Component 40 returns back to initial position, and the second detection piece 52 and the first detection piece under the action of the elastic-restoring force of elastic component 23
51 separation, to be adsorbed screw 300 next time.
During suction nozzle 42 adsorbs screw 300 from screw feeding machine, when absorption end 423 position and adsorbed
There are during small dislocation between screw 300, guiding face 4235 can play guiding function to screw 300, so that 300 quilt of screw
Successfully absorb into absorption end 423.After screw 300 enters absorption end 423, outside air can pass through spiral helicine diversion trench
4236 enter in gas channel 424, and form rotating air-flow in absorption end 423.The rotating airflow function is in screw 300
After make screw 300 be rotating to stop surface 4233 to move.When screw 300 is by 4233 backstop of stop surface, due to diversion trench 4236
Through stop surface 4233, therefore outside air still is able to enter gas channel 424 by diversion trench 4236.At this time, air-flow is formed
Pressure make screw 300 with respect to stop surface 4233 it is static.Since screw 300 is to be rotated into absorption end 423, therefore, it is possible to
The probability that screw 300 blocks is reduced, so that the probability that the position for reducing screw 300 shifts, and lock spiral shell in screwdriver 22
That screw 300 is improved during silk 300 locks yield.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.