CN205888524U - Bolt fastening machine - Google Patents

Abstract

The utility model relates to the field of mechanical equipment, specific theory relates to a bolt fastening machine. The utility model discloses a lift the board, be located the fastener who lifts on the board, it is provided with the opening that supplies fastener to reciprocate to lift the board middle part, fastener is including being located the tray that lifts board middle part opening part, the relocation mechanism that runs through the tray, be located a plurality of locating pins of tray upper surface, be located the upper surface that lifts the board and follow a plurality of rotational positioning mechanisms that the peripheral department of round opening set up, be located the locking device who lifts the board upper surface and use with the cooperation of a plurality of locating pins, be located the rotatory pushing mechanism who lifts the board upper surface and link to each other with tray side, wherein, the tray scarf joint is in the region that a plurality of rotational positioning mechanisms and locking device formed, the tray is circular to a plurality of rotational positioning mechanisms are even spacing distribution around the tray. The utility model discloses can realize the accurate control to the bolt when reducing spanner quantity, guarantee mechanical device's fastening nature.

Description

A kind of Screw Tightening Machines

Technical field

This utility model is related to technical field of mechanical equipment, specifically, is related to a kind of Screw Tightening Machines.

Background technology

In existing plant equipment, have very much and all carry bolt, and bolt is distributed in a lot of positions, for the ease of inciting somebody to action Different parts are interconnected to form overall plant equipment, and the bolt number of employing is also relatively many.Such as compressor Bolt on protecgulum, is generally aligned in the same plane, and arranges in even number, for fastening compressor.The fastening of a lot of bolts is most at present Tightened by artificial or mechanical system, the mode manually tightened needs that manpower is man-to-man to be tightened, so for bolt Tighten that precision, dynamics are all unbalanced so that compressor front cover sealing is bad, strict setting is required for technical parameter Standby, artificial mode is inaccurate, only from empirically, being difficult to judge whether to be bolted to position, and artificial mode Labor efficiency is too low, grasps bad for the equilibrant between bolt.The mode tightened for machinery, multiple spanners are automatically same When tighten bolt, be capable of being precisely controlled, but in the case that bolt is excessive, need each bolt is equipped with pulling Handss, thus can increase the cost of equipment, because spanner is too many, the insufficient space of back-up wrench, and need to increase shaft coupling, therefore More power losses can be brought, and device structure and auxiliary facility more complicate.

Content of the invention

For the deficiencies in the prior art, this utility model provides a kind of Screw Tightening Machines, can reduce spanner quantity Meanwhile, realize being precisely controlled the tightness it is ensured that machinery to bolt.

For solving above-mentioned technical problem, of the present utility model it is achieved through the following technical solutions:

The technical scheme of the first Screw Tightening Machines that this utility model provides, it is characterized in that including raising board 4th, the clamp device being located on raising board 4；It is provided with the opening 37 moving up and down for clamp device in the middle part of raising board 4；

Clamp device includes pallet 6 at raising board 4 intermediate openings 37, the relocation mechanism running through pallet 6, is located at support Multiple alignment pins of disk 6 upper surface, the multiple rotations being located at the upper surface of raising board 4 and arranging along at circular open 37 periphery are fixed Position mechanism, be located at raising board 4 upper surface and with multiple detent fit use locking device, be located at raising board 4 upper surface simultaneously The rotation forces mechanism being connected with Tray side, wherein, pallet interlocking is formed in multiple rotary positioning mechanisms and locking device In region, described pallet 6 is circle, and multiple rotary positioning mechanism is in pallet 6 surrounding equidistantly distributed.

Further, described rotary positioning mechanism includes rotational positioning base 7, top sheave 8, lower sheave 9, side roller 10, Wherein rotational positioning base 7 side is the convex opening 11 caving inward, and places side roller 10, convex in convex opening 11 The port both sides of opening 11 are respectively arranged with lower sheave 9；The convex that the circumference of pallet 6 is embedded in multiple rotary positioning mechanisms is opened Mouth 11 is interior and the circumference of side roller 10 is tangent with the circumference of pallet 6, and upper lower sheave 9 is located at the upper and lower surface of pallet 6 simultaneously respectively And the circumference of upper lower sheave 9 is tangent with pallet 6 upper and lower surface respectively.

Further, described locking device includes lock cylinder 12, limited block 13, guide-localization seat 14, slide head 16, its In, slide head 16 is located in guide-localization seat 14, and one end of described limited block 13 is connected with the piston rod of lock cylinder 12, separately One end is connected with slide head 16 by union joint 15, and the end of described slide head 16 is the groove 17 accommodating alignment pin.

Further, the upper surface of pallet 6 is fixed with two alignment pins, and two alignment pins are respectively positioned on same parallel to circumference On one circular arc line.

Further, described rotation forces mechanism includes being fixed on raising board 4 by base 24 pusher cylinder 23, solid It is scheduled on the pulling support 26 on pallet 6, wherein, one end of pusher cylinder 23 passes through that rotary shaft 25 is hinged with base 24, the other end Hinged with pulling support 26 by piston rod.

Further, relocation mechanism includes electric wrench, the screwdriver bit 33 of pallet 6 lower section being fixed on pallet 6 top, in support Disk 6 upper surface, the center spaced set around pallet 6 has multiple fixing holes 34, is equipped with each fixing hole 34 One electric wrench, the bottom of electric wrench is connected with screwdriver bit 33.

Further, also include the rotary position-limit mechanism positioned at raising board 4 upper surface, it is included above raising board 4 Oil buffer, be located at pallet 6 on convex limited block 22, the both sides of convex limited block 22 are each provided with an oleo cushion Oil buffer described in device is fixed on raising board 4 by fixed seat 40.

The technical scheme of the second Screw Tightening Machines that this utility model provides, is changed on the basis of the first scheme Enter,

Also include dynamical system, lead 2, fixed station 3, plummer 5；

Described dynamical system is the actuating cylinder 1 being oppositely arranged in fixed station 3 upper surface both sides, each actuating cylinder 1 Piston rod is fixed on the upper surface of raising board 4 by floating junction；

Fixed station 3 is located at directly over raising board 4, and plummer 5 is located at immediately below raising board 4, fixed station 3, raising board 4, holds Four corners of microscope carrier 5 are all run through by lead 2 successively, and the bottom of each lead 2 is fixed on plummer 5, in fixed station 3 Portion is provided with the opening 37 moving up and down for clamp device.

The technical scheme of the third Screw Tightening Machines that this utility model provides, is changed on the basis of second scheme Enter,

Also include the buckling device for being fixed on raising board 4 on fixed station 3, it includes fastening cylinder 27, hang down in top The fixed plate 28 being directly arranged on fixed station 3 lower surface, the sliding panel 29 being fixed on raising board 4 side wall and be located at fixed plate Buckling plate 30 between 28 and sliding panel 29, wherein fixed plate 28 bottom, vacantly above raising board 4, are arranged in fixed plate 28 There is rotary shaft 25, the middle part of buckling plate 30 is in fixed plate 28 and upper in buckling plate 30 by rotary shaft 25 floating connection It is connected with spring 31, the lower end of buckling plate 30 is in l type, and l type bottom 41 is connected with fixed plate 28 side wall between end and fixed plate 28 Touch；Buckling plate 30 side relative with sliding panel 29 is the inclined plane shape mutually coincideing, and carries buckle on the top of sliding panel 29 32, fastening cylinder 27 is fixed in fixed plate 28, and the piston rod of fastening cylinder 27 is connected through fixed plate 28 with buckling plate 30 Touch.

The technical scheme of the 4th kind of Screw Tightening Machines that this utility model provides, is changed on the basis of the third scheme Enter, be additionally included in the hard stopping means playing cushioning effect in raising board 4 lifting process, described hard stopping means are multiple spacing Axle 35, each limit shaft 35 sequentially passes through fixed station 3 and bottom is fixed on raising board 4, and each limit shaft 35 is located at fixed station 3 upper and lower is all socketed the hard stop nut 36 of mutual self-locking.

This utility model compared with prior art, has the advantage that

Pallet of the present utility model, under the cooperation of each part, by the rotation of pallet, drives and is arranged on raising board Electric wrench alternately tightens bolt, need not set an electric wrench to each bolt, reduce spanner quantity；Rotational positioning machine Structure, alignment pin, locking device, rotary position-limit mechanism, the cooperating of rotation forces mechanism, in the feelings of the rotation of pallet, locking Under condition, can be treated using electric wrench and tighten bolt and realize precise positioning, and then tighten or loose bolts.New by this practicality The technical scheme of type can be precisely controlled moment of torsion and the angle that bolt is tightened, and realizes bolt fixed precision height, screwing force equilibrium, if Standby cost relative reduction.

Brief description

Fig. 1 is perspective view of the present utility model.

Fig. 2 is the front view of Fig. 1.

Fig. 3 is the rearview of Fig. 1.

Fig. 4 is the right view of Fig. 1.

Fig. 5 is the front view of this utility model locking device.

Fig. 6 is the top view of this utility model locking device.

Fig. 7 is the structural representation of this utility model rotary positioning mechanism.

Fig. 8 is the structural representation of this utility model buckling device.

Description of symbols: 1, actuating cylinder, 2, lead, 3, fixed station, 4, raising board, 5, plummer, 6, pallet, 7, rotation Positioning base, 8, top sheave, 9, lower sheave, 10, side roller, 11, convex opening, 12, lock cylinder, 13, limited block, 14, lead To positioning seat, 15, union joint, 16, slide head, 17, groove, the 18, first alignment pin, the 19, second alignment pin, the 20, first oil pressure Buffer, the 21, second oil buffer, 22, convex limited block, 23, pusher cylinder, 24, base, 25, rotary shaft, 26, pull Support, 27, fastening cylinder, 28, fixed plate, 29, sliding panel, 30, buckling plate, 31, spring, 32, buckle, 33, screwdriver bit, 34, solid Determine hole, 35, limit shaft, 36, hard stop nut, 37, opening, 38, sleeve, 39, guiding pressure head, 40, fixed seat, 41, l type bottom End.

Specific embodiment

1-8 referring to the drawings, provides specific embodiment of the present utility model, for doing further to this utility model Explanation.

Embodiment 1:

The application of Screw Tightening Machines illustrates taking the bolt on vehicle compressor protecgulum as a example in the present embodiment, at this In embodiment, the number of bolt is set as even number, and the number of corresponding electric wrench is the half of bolt number, adjacent electronic pulls The distance between handss are the integral multiple between adjacent bolt.

The Screw Tightening Machines of the present embodiment include dynamical system, lead 2, fixed station 3, raising board 4, plummer 5, fastening Device；Wherein, raising board 4 is located between fixed station 3 and plummer 5, and fixed station 3, raising board 4, plummer 5 are in same vertical blank Interior, it is provided with the opening 37 moving up and down for clamp device in the middle part of fixed station 3, raising board 4, the position of opening 37 is for fastening dress Put and move up and down.Plummer 5 is located at least significant end, places and be furnished with the device needing to tighten bolt or life above plummer 5 Producing line passes through above plummer 5, and placing on a production line needs to tighten the device of bolt.

Lead 2 is provided with 4 in the present embodiment, and each lead 2 sequentially passes through fixed station 3, lifting from top to bottom Plate 4,5,4 leads 2 of plummer are located at fixed station 3, raising board 4,4 corner positions of plummer 5 respectively, lead 2 Bottom is fixed on plummer 5.

Dynamical system is the actuating cylinder 1 being oppositely arranged in fixed station 3 upper surface both sides, has two to move in the present embodiment Strength cylinder 1, the piston rod of each actuating cylinder 1 is fixed on the upper surface of raising board 4 by floating junction；Following table in lift plate The position of corresponding four leads 2 in face is respectively arranged with the sleeve 38 passing through for lead 2, and actuating cylinder 1 is used for driving entirely Device on raising board 4 does lifting moving along four leads 2 through sleeve 38 in the vertical direction.In the present embodiment, cover Cylinder 38 is integral type structure with the lower surface of raising board 4, and sleeve 38 guides and protects raising board 4 to lift along lead 2.

Clamp device includes pallet 6 and the rotary positioning mechanism being respectively positioned on raising board 4 upper surface, alignment pin, locking dress Put, rotary position-limit mechanism, rotation forces mechanism, buckling device, hard stopping means.By joining of these devices on raising board 4 Close rotation, locking and the lifting realizing pallet 6.

Raising board 4 is located at immediately below fixed station 3, and the opening 37 of raising board 4 is circular open 37, in the device of the present embodiment In be provided with four leads 2, every lead 2 sequentially passes through fixed station 3, raising board 4, the corner of plummer 5, and lift The lower surface of lift slab 4 is provided with four sleeves 38, and each sleeve 38 is to should have a lead 2 to pass through inside it, and covers Cylinder 38 is integral type structure with the lower surface of raising board 4.

Clamp device includes pallet 6 and the rotary positioning mechanism being respectively positioned on raising board 4 top, alignment pin, locking dress Put, relocation mechanism, rotary position-limit mechanism, rotation forces mechanism, retention device, hard stopping means.Part one in clamp device Rise and use cooperatively, realize rotation, locking of pallet 6 etc..

Pallet 6 is circle, and for coordinating the motion of pallet 6, the opening 37 of raising board 4 is also configured as circle, and pallet 6 is embedded in In the circular open 37 of raising board 4, pallet 6 surrounding and the multiple rotary positioning mechanisms being fixed on raising board 4, rotary stopper machine Structure, locking device phase are fixed；Multiple rotary positioning mechanisms are in pallet 6 surrounding equidistantly distributed.

In the present embodiment, four rotary positioning mechanisms are provided in the present embodiment, four rotary positioning mechanisms are in pallet 6 Surrounding equidistantly distributes, and the angle of two neighboring rotary positioning mechanism is 90 degree.

Four rotary positioning mechanisms are arranged on the upper surface of raising board 4 and place along circular open 37 periphery, each rotation Detent mechanism includes rotational positioning base 7, top sheave 8, lower sheave 9, side roller 10, wherein rotational positioning base 7 side be to The convex opening 11 of sunken inside, and place side roller 10 in convex opening 11, the port both sides of convex opening 11 are respectively provided with There is upper lower sheave 9；The circumference of pallet 6 be embedded in the convex opening 11 of four rotary positioning mechanisms and side roller 10 circumference Tangent with the circumference of pallet 6, upper lower sheave 9 be located at respectively the circumference of the upper and lower surface of pallet 6 and upper lower sheave 9 respectively with support Disk 6 upper and lower surface is tangent.

Top sheave 8, lower sheave 9 are all separately fixed at the port of the convex opening 11 of rotational positioning base 7 by fixing axle Surface, side roller 10 is fixed in convex opening 11 by fixing axle.The region being formed between four rotary positioning mechanisms and support The circular dimension of disk 6 matches, and rotates in the plane for pallet 6, and side roller 10 limits the movement locus of pallet 6, upper lower sheave 9 With pallet 6 upper and lower surface fit by pallet 6 be limited to same plane rotated it is ensured that pallet 6 rotation during Stability.

Locking device is located at and raising board 4 upper surface, and it includes lock cylinder 12, limited block 13, guide-localization seat 14, slides Dynamic 16, wherein, slide head 16 is located in guide-localization seat 14, one end of described limited block 13 and the piston of lock cylinder 12 Bar is connected, and the other end is connected with slide head 16 by union joint 15, and the end of described slide head 16 is the groove accommodating alignment pin 17.

It is fixed with two alignment pins in the upper surface of pallet 6, two alignment pins are respectively positioned on the same circular arc parallel to circumference On line, alignment pin is cylinder, forms angle between two alignment pins and the center of pallet 6.Two positioning in the present embodiment Pins position is between adjacent rotary positioning mechanism.Multiple rotary positioning mechanisms can also be bridged between two alignment pins, as long as two Individual alignment pin meets in pallet 6 upper surface and just permissible on the same circular arc parallel with pallet 6 circumference.So revolve in pallet 6 When going to, slide head 16 just can stretch out and alignment pin is locked in the groove 17 of slide head 16.

Locking device is used with detent fit, realizes locking and the unblock of pallet 6, slide head 16 stretches out and will position pin card It is combined in the groove 17 of slide head 16 end, now for lock-out state, when slide head 16 is retracted, alignment pin departs from groove 17 Out, now for released state.

Two alignment pins setting in the present embodiment are respectively the first alignment pin 18, the second alignment pin 19, when pallet 6 revolves When going to, locking pallet 6 action of execution according to required for this utility model device, slide head 16 stretches out locking first positioning Pin 18 or the second alignment pin 19, the first alignment pin 18 or the second alignment pin 19 are fastened in the groove 17 of slide head 16 end. When pallet 6 needs rotation, unblock pallet 6 action of execution according to required for this utility model device, slide head 16 is retracted, solution Lock the first alignment pin 18 or the second alignment pin 19 so that the first alignment pin 18 or the second alignment pin 19 are recessed from slide head 16 end Depart from groove 17.

Rotary position-limit mechanism includes oil buffer positioned at raising board 4 top, the convex limited block being located on pallet 6 22, the both sides of convex limited block 22 are each provided with an oil buffer being fixed on raising board 4 by fixed seat 40.Convex The part that limited block 22 projects is located at outside pallet 6, and so during pallet 6 rotation, convex limited block 22 is respectively with two The oil buffer of side collide realization spacing to pallet 6.

Pusher cylinder 23 that rotation forces mechanism includes being fixed on raising board 4 by base 24, it is fixed on pallet 6 Pull support 26, wherein, one end of pusher cylinder 23 passes through that rotary shaft 25 is hinged with base 24, the other end by piston rod and draws Dynamic support 26 is hinged, and hinged herein is also to be realized by rotary shaft 25.Under the promotion of the piston rod of pusher cylinder 23, promote Cylinder 23 passes through the rotation that rotary shaft 25 one end hinged with base 24 occurs certain angle, pusher cylinder 23 other end simultaneously Rotate, and drive pallet 6 to rotate corresponding angle.

In the present embodiment, the angle between the angle between two alignment pins, two oil buffers, pusher cylinder rotation The angle turning, three is consistent, so guarantees that pallet also occurs at the same angle when pusher cylinder occurs angle rotation Rotation, alignment pin, oil buffer also each play a role.

Alignment pin is divided into the first alignment pin 18, the second alignment pin 19 in the present embodiment, and oil buffer is divided into the first oil Compression buffer 20, the second oil buffer 21, wherein, when the piston rod of pusher cylinder 23 stretches out, pallet 6 turns clockwise, the Pallet 6 when two alignment pins 19 are used for clockwise locks, and now, the first oil buffer 20 is contacted with convex limited block 22, Realize spacing and buffering；When the piston rod of pusher cylinder 23 withdraws, pallet 6 rotate counterclockwise, the first alignment pin 18 is used for the inverse time Pallet 6 during pin rotation locks, and the second oil buffer 21 is contacted with convex limited block 22, realizes spacing and buffering.

Buckling device includes fastening cylinder 27, plan vertical is arranged on the fixed plate 28 of fixed station 3 lower surface, be fixed on act Sliding panel 29 on lift slab 4 side wall and be located at buckling plate 30 between fixed plate 28 and sliding panel 29, wherein fixed plate 28 bottom End, vacantly above raising board 4, is provided with rotary shaft 25, floated by rotary shaft 25 in the middle part of buckling plate 30 in fixed plate 28 It is connected in fixed plate 28, and be connected with spring 31 between the upper end in buckling plate 30 and fixed plate 28, under buckling plate 30 End is in l type, and l type bottom 41 is contacted with fixed plate 28 side wall；Buckling plate 30 side relative with sliding panel 29 is mutually identical Inclined plane shape, and the top of sliding panel 29 carry buckle 32, fastening cylinder 27 is fixed in fixed plate 28, and fastening cylinder 27 Piston rod contact through fixed plate 28 with buckling plate 30.

Buckling device is used for locking pallet 6, and only when buckling device is opened, pallet 6 could be in the work of pusher cylinder 23 With the lower action realizing oscilaltion.

When pallet 6 rises, sliding panel 29 is moved up along the side being connected with buckling plate 30, and sliding panel 29 is to fixation Plate 28 direction extrudes buckling plate 30, and spring 31 is compressed, and in the presence of spring 31 between buckling plate 30 and fixed plate 28, slides Buckle 32 lower section on plate 29 top and the top of buckling plate 30 fasten, and now pallet 6 is fixed, and will not automatically land.Work as needs When execution pallet 6 down maneuver, the piston rod of fastening cylinder 27 stretches out, and promotes buckling plate 30 bottom away from fixed plate 28, It is the relation of floating connection between buckling plate 30 and fixed plate 28, buckling plate 30 deflects along rotary shaft 25, buckling plate 30 Top is departed from the buckle 32 on sliding panel 29 top near fixed plate 28, buckling plate 30 top, and pallet 6 is opened, and opens landing Action, the piston rod of fastening cylinder 27 withdraws, and buckling plate 30 resets.

Relocation mechanism includes electric wrench, the screwdriver bit 33 of pallet 6 lower section being fixed on pallet 6 top, in pallet 6 upper table Face, the center spaced set around pallet 6 has multiple fixing holes 34, be equipped with each fixing hole 34 one electronic Spanner, the bottom of electric wrench is connected with screwdriver bit 33.

Illustrated with vehicle compressor protecgulum in the present embodiment, bolt is distributed in the surrounding of protecgulum.Under pallet 6 Surface is additionally provided with guiding pressure head 39, is connected by bar, is socketed with bullet in the outside of bar between guiding pressure head 39 and pallet 6 center Spring 31, screwdriver bit 33 is arranged around staking punch surrounding.Electric wrench is located at pallet 6 upper surface, floating between electric wrench and screwdriver bit 33 It is dynamically connected.During specifically used, protecgulum is placed on below guiding pressure head 39, guiding pressure head 39 is in the work of actuating cylinder 1 With under, drop to above protecgulum, guiding pressure head 39 will in the middle part of protecgulum compress.Guiding pressure head 39 inner hollow, such setting can So that protecgulum is firmly fixed, the projection at lid center, when guiding pressure head 39 decline, is contained in guiding pressure head 39.Fixed station The opening 37 at 3 middle parts can accommodate electric wrench, and electric wrench does not show that in figure, and the description according to the present embodiment clearly obtains Know the position of electric wrench.

So, when bolt is operated, protecgulum will not be moved.Front cap upper surface surrounding is provided with multiple spiral shells Bolt, wherein each bolt are located at immediately below the screwdriver bit 33 being fixed on below arbitrary electric wrench, screwdriver bit 33 and electric wrench number Unanimously, the number of bolt is the multiple of screwdriver bit 33 number.Multiple screwdriver bits 33 wait a point arrangement below pallet 6, and bolt is on lid Decile is arranged.Screwdriver bit 33 can in electric wrench slight fluctuation.

When pallet 6 rotates, electric wrench drives screwdriver bit 33 to follow pallet 6 in the same direction with the rotation of angle, each electricity Wrench controls screwdriver bit 33 below the bolt being located at screwdriver bit 33 lower section on protecgulum to be tightened or is loosened.Protecgulum is ability The common part in domain, is not described in detail to the structure of protecgulum in this utility model, is only used as operation instruction.

Hard stopping means are multiple limit shafts 35, and each limit shaft 35 sequentially passes through fixed station 3 and bottom is fixed on lifting On plate 4, the upper and lower that each limit shaft 35 is located at fixed station 3 is all socketed hard stop nut 36, for raising board 4 elevating movement Buffering in journey, reduces the impulsive force to whole device.It is provided with 4 axles in the present embodiment, each axle position is on fixed station 3 The same position of lower section is respectively arranged with external screw thread, is socketed firmly spacing with female mutual self-locking in externally threaded position Nut 36, hard stop nut 36 is with raising board 4 rise and fall performance limiting buffer up and down.

In the present embodiment, with screwdriver bit 33 for 4, bolt is 8, and screwdriver bit 33 4 grades on pallet 6 divide arrangement, bolt to exist On lid, 8 grades divide arrangement to illustrate the using method of this utility model device.In the present embodiment between two screwdriver bits 33 It is spaced apart 2 times of distance between two bolts, when that is, above screwdriver bit 33 is located at bolt, between each two screwdriver bit 33, be spaced one Bolt.

Turning on the power, startup program on plc control panel, executable bolt tightens action, bolt looseness action.

Specifically execution action is bolt rundown process:

Before this utility model equipment starts action, initial point reset to be carried out to equipment, in this utility model, according to Program setting the first alignment pin 18 or the second alignment pin 19 are initial point position, and this sentences the first alignment pin 18 and is locked as initial point initial bit Illustrate.

Under initial point reset state, if this utility model equipment is in initial point position, that is, the first alignment pin 18 is locked by locking device Fixed, equipment is started working, if equipment is not in initial point position, equipment checks the point position state at each position, and initial point resets, and realizes locking First alignment pin 18 is locked by device, and in the state of the first alignment pin 18 is locked, now, pallet 6 rises to top, button Attach together to put and pallet 6 is fastened.

Buckling device is opened, and sliding panel 29 departs from from buckling plate 30, in promotion lower tray 6 first time of actuating cylinder 1 Decline, under the drive of each screwdriver bit 33 electric wrench above it to below just to bolt carry out tightening work, currently Cover after 4 bolts corresponding to screwdriver bit 33 tighten, rise for the first time in the pulling lower tray 6 of actuating cylinder 1；Now fasten dress Put closure, locking device is opened, the first alignment pin 18 departs from the slide head 16 of locking device.

The piston rod of pusher cylinder 23 stretches out, and promotes pallet 6 to turn clockwise, and drives the screwdriver bit 33 of pallet 6 lower section to exchange Position, when the second alignment pin 19 rotates to during with locking device same level position, each screwdriver bit 33 rotates to remaining that wait is tightened Remaining the surface of 4 bolts, the second alignment pin 19 is locked by locking device, and buckling device is again turned on, in pushing away of actuating cylinder 1 Second decline of dynamic lower tray 6, screwdriver bit 33 tightens remaining 4 bolts, afterwards in second of the pulling lower tray 6 of actuating cylinder 1 Rise, buckling device closes, locking device is opened, and the second alignment pin 19 departs from the slide head 16 of locking device.

The piston rod of pusher cylinder 23 withdraws, and drives pallet 6 rotate counterclockwise, drives the screwdriver bit 33 of pallet 6 lower section to exchange Position, when the first alignment pin 18 rotates to during with locking device same level position, the first alignment pin 18 is locked by locking device, this When equipment return to initial point position, wait the next one to need to tighten the workpiece of bolt, repeat above action.

Device of the present utility model can also realize bolt looseness process, and this utility model is only tightened action and carried out to bolt Illustrate, bolt looseness and bolt are tightened as contrary action, the process that reference bolt is tightened carries out bolt looseness.For this practicality Angle between angle between two alignment pins, two oil buffers, the angle of pusher cylinder 23 rotation in new, this three The angle of person can adjust according to the distribution of bolt on the number of screwdriver bit 33 and protecgulum, the angle between each two adjacent bolt For the half of above three's angle, no matter how the number of bolt is arranged, screwdriver bit 33 number and electric wrench must be guaranteed Number is consistent, and screwdriver bit 33 number is the half of bolt number, and screwdriver bit 33 clockwise, rotate counterclockwise correspond to respectively arranged in a crossed manner Bolt above.The stroke up and down of the hard stopping means of this utility model is consistent with pallet 6 lifting travel, device of the present utility model Between rotation, lifting etc. is tightened according to the bolt on protecgulum or need, the equipment of fixing bolt is specifically adjusted.

In this utility model, in order to coordinate the screwdriver bit in device of the present utility model that bolt is operated, Ke Yi Above plummer, lifting device is set below screwdriver bit, the workpiece needing bolt is operated can be existed by such as lifting jack etc. Vertical direction is praised, and is easy to screwdriver bit and contacts with the bolt on workpiece, but is ensured that the surface of the work bolt below screwdriver bit exists Same plane, and bolt place plane is parallel with screwdriver bit place plane.

It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim All changes in justice and scope are included in this utility model.

Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment comprises One independent technical scheme, only for clarity, those skilled in the art should be by for this narrating mode of description As an entirety, the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can for description With the other embodiment understanding.

Claims (10)

1. a kind of Screw Tightening Machines it is characterised in that: include raising board (4), be located at raising board (4) on clamp device；

It is provided with the opening (37) moving up and down for clamp device in the middle part of raising board (4)；

Clamp device includes pallet (6) positioned at raising board (4) intermediate openings (37) place, the relocation mechanism running through pallet (6), position Multiple alignment pins in pallet (6) upper surface, the upper surface positioned at raising board (4) and the setting along at circular open (37) periphery Multiple rotary positioning mechanisms, be located at raising board (4) upper surface and with multiple detent fit use locking device, be located at lifting Plate (4) upper surface the rotation forces mechanism being connected with Tray side, wherein, pallet is rabbeted in multiple rotary positioning mechanisms and lock In the region that tight device is formed, described pallet (6) is circle, and multiple rotary positioning mechanism is equidistant in pallet (6) surrounding Distribution.

2. as claimed in claim 1 a kind of Screw Tightening Machines it is characterised in that:

Also include dynamical system, lead (2), fixed station (3), plummer (5)；

Described dynamical system is the actuating cylinder (1) being oppositely arranged in fixed station (3) upper surface both sides, each actuating cylinder (1) Piston rod be fixed on the upper surface of raising board (4) by floating junction；

Fixed station (3) is located at directly over raising board (4), and plummer (5) is located at immediately below raising board (4), fixed station (3), lifting Plate (4), four corners of plummer (5) are all run through by lead (2) successively, and the bottom of each lead (2) is fixed on carrying On platform (5), in the middle part of fixed station (3), it is provided with the opening (37) moving up and down for clamp device.

3. as claimed in claim 2 a kind of Screw Tightening Machines it is characterised in that: also include for being fixed on raising board (4) Buckling device on fixed station (3), it includes fastening cylinder (27), plan vertical is arranged on the fixation of fixed station (3) lower surface Plate (28), the sliding panel (29) being fixed on the wall of raising board (4) side and be located between fixed plate (28) and sliding panel (29) Buckling plate (30), wherein fixed plate (28) bottom, vacantly above raising board (4), are provided with rotary shaft in fixed plate (28) (25), rotary shaft (25) floating connection is passed through in fixed plate (28) in the middle part of buckling plate (30), and in buckling plate (30) It is connected with spring (31), the lower end of buckling plate (30) is in l type, l type bottom (41) and fixed plate between upper end and fixed plate (28) (28) side wall contacts；Buckling plate (30) side relative with sliding panel (29) is the inclined plane shape mutually coincideing, and in sliding panel (29) top carries buckle (32), and fastening cylinder (27) is fixed in fixed plate (28), and the piston rod of fastening cylinder (27) Contact through fixed plate (28) with buckling plate (30).

4. a kind of Screw Tightening Machines as described in any one of claims 1 to 3 it is characterised in that: described rotary positioning mechanism bag Include rotational positioning base (7), top sheave (8), lower sheave (9), side roller (10), wherein rotational positioning base (7) side be to The convex opening (11) of sunken inside, and place side roller (10), the port both sides of convex opening (11) in convex opening (11) It is respectively arranged with lower sheave (9)；The circumference of pallet (6) be embedded in the convex opening (11) of multiple rotary positioning mechanisms and The circumference of side roller (10) is tangent with the circumference of pallet (6), upper lower sheave (9) respectively be located at pallet (6) upper and lower surface and The circumference of upper lower sheave (9) is tangent with pallet (6) upper and lower surface respectively.

5. as claimed in claim 4 a kind of Screw Tightening Machines it is characterised in that: described locking device includes lock cylinder (12), limited block (13), guide-localization seat (14), slide head (16), wherein, slide head (16) is located in guide-localization seat (14) Interior, one end of described limited block (13) is connected with the piston rod of lock cylinder (12), and the other end passes through union joint (15) and slides Head (16) is connected, and the end of described slide head (16) is the groove (17) accommodating alignment pin.

6. as claimed in claim 5 a kind of Screw Tightening Machines it is characterised in that: the upper surface of pallet (6) be fixed with two fixed Position pin, two alignment pins are respectively positioned on parallel on the same circular arc line of circumference.

7. as claimed in claim 6 a kind of Screw Tightening Machines it is characterised in that: described rotation forces mechanism is included by base (24) pusher cylinder (23) being fixed on raising board (4), the pulling support (26) being fixed on pallet (6), wherein, promote gas It is hinged with pulling support (26) that one end of cylinder (23) passes through that rotary shaft (25) is hinged with base (24), the other end passes through piston rod.

8. as claimed in claim 7 a kind of Screw Tightening Machines it is characterised in that: relocation mechanism includes being fixed on pallet (6) The electric wrench of side, the screwdriver bit (33) below pallet (6), in pallet 6 upper surface, equidistant around the center of pallet (6) It is provided with multiple fixing holes (34), is equipped with an electric wrench in each fixing hole (34), the bottom of electric wrench connects There is screwdriver bit (33).

9. as claimed in claim 8 a kind of Screw Tightening Machines it is characterised in that: also include positioned at raising board (4) upper surface Rotary position-limit mechanism, it includes the oil buffer above raising board (4), the convex limited block on pallet (6) (22), the both sides of convex limited block (22) are each provided with oil buffer described in an oil buffer by fixed seat (40) admittedly It is scheduled on raising board (4).

10. as claimed in claim 8 a kind of Screw Tightening Machines it is characterised in that:

It is additionally included in the hard stopping means playing cushioning effect in raising board (4) lifting process, described hard stopping means are multiple limits Position axle (35), each limit shaft (35) sequentially passes through fixed station (3) and bottom is fixed on raising board (4), each limit shaft (35) upper and lower being located at fixed station (3) is all socketed the hard stop nut (36) of mutual self-locking.