CN1026871C

CN1026871C - Automatic feeding device for screw bolt machine

Info

Publication number: CN1026871C
Application number: CN 91109884
Authority: CN
Inventors: 陈得麟
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-28
Filing date: 1991-10-28
Publication date: 1994-12-07
Anticipated expiration: 2006-10-28
Also published as: CN1071873A

Abstract

The present invention relates to an automatic feeding device for a screw machine, and mainly uses a driver which is arranged in the automatic feeding device; when the screw machine uses an electric drill to screw screws, a hooking body of the driver advances along the electric drill, and when the screw machine finishes screwing, the electric drill can uses the restoring force of a main restoring element in the automatic feeding device to move backwards to an original position; simultaneously, the electric drill which is again matched with the restoring force of a secondary restoring element on the driver makes the hooking body drive a transmission gear to rotate, so the next screw of a screw band can be moved to the automatic feeding device by the transmission gear, and thereby, the function of continuous screw feeding can be achieved.

Description

Automatic feeding device for screw bolt machine

The present invention relates to a kind of auto-feeder of screw machine, but particularly a kind of auto-feeder of screw machine of auto-feed screw.

Progress and prosperity along with society, use that screw is locked admittedly or the article that link are more and more many, particularly the screw amount of building industry and consumption that manufacturing industry is sold is quite vast, and the workplace of using screw for needs in a large number, the operating personnel utilizes electric drill that screw is one by one screwed in the position of installing at present, to finish the operation that screws togather, but, the shape of screw itself is sharp bar-shaped object, and have flat-shaped spiral shell head and a screw thread, make that the shape of screw is quite irregular, so that will make multiple screw be collected at together quite difficulty regularly, so, screw now all is direction-freely to pile up in a box body or operating personnel's work bag, in will be or when taking out screw in the bag by box, the operating personnel must stretch in the box or bag in and the Drawing upon sense of touch catch the shaft of screw to take out then, then the spiral shell headgear of screw is connected on the rotating shaft front end of electric drill, aiming at the place that will screw togather again screws in, so just finish and once be spirally connected or operation that spiral shell is solid, so, the existing operating type that screws togather is quite slow, efficient is low uneconomical again, and screw has the taper tip, the operating personnel is in the process that grasps screw, be easy to be hindered by the awl spine of screw, this also is the existing shortcoming that screws togather operation.

The nail quite approximate with the screw shape, the relevant development already nailing machine, and this nailing machine can hit one by one and follow closely and will follow closely solid place admittedly storing nail in machine, also a plurality of nails can be arranged regularly so that use simultaneously; Yet, nailing machine is nail is hit and to finish the solid effect of nail, if be applied in screwing togather in the operation of screw and inapplicable with this structure, because will finish when screwing togather operation, must just can reach in the mode of precession, so existing nailing machine can't be suitable for the operation that screws togather of screw.

Main purpose of the present invention is that a kind of auto-feeder that can continuously many screws be screwed togather the screw machine of operation respectively is being provided.

The auto-feeder of a kind of screw machine that the present invention proposes is characterized in that: the auto-feeder of described screw machine comprises housing, connecting ring, two guide plates, driver, centre mount, main answer element, electric drill, inferior answer element and Screw bands; Described housing is hollow form, described connecting ring interlocking is at an end of described housing, and described two guide plates move with respect to described housing, and described driver is between described two guide plates, described centre mount is fixed between described two guide plates, and the described main element of replying is positioned at described housing; Described connecting ring is embedded the rear end at described housing, and described connecting ring is provided with connecting hole; Described two guide plates lay respectively at the both sides of described enclosure interior, and described two guide plates are affixed mutually, and the medial surface of described two guide plates respectively is provided with positioning body, and the front end of described two guide plates protrudes out the outside at described housing front end; Described centre mount has central through-hole, and the center line position of the center line of described central through-hole and the connecting hole of described connecting ring is on same straight line; Described electric drill is provided with rotating shaft, and the rotating shaft of described electric drill penetrates in the described connecting hole and stretches and put in described central through-hole; A described main end of replying element is enclosed within the rear end of described centre mount, and the described main other end of replying element is resisted against the inner face of described connecting ring; Described driver comprises and colludes body, travelling gear and flexible member, and the described body that colludes moves on guide plate, and described travelling gear is located at the side of centre mount, and the described body that colludes colludes and touches on described travelling gear, and described Screw band is engaged on the described travelling gear;

Described guide plate is provided with leads the way, and described front end of leading the way is reclinate arc road, and the curvature in described arc road is identical with the curvature of the travelling gear of described driver, and the described flank of tooth that point following described travelling gear that colludes that colludes body moves;

The front end both sides of described centre mount respectively are provided with holder, described holder is mounted in respectively in the positioning body of described two guide plates, the medial surface of one of them in described two guide plates is equiped with the adjustment location-plate, described adjustment location-plate is provided with the adjustment slotted hole, and described adjustment location-plate is cemented in the outside of described holder; When described housing moved with respect to described guide plate, the tail end of described adjustment location-plate protruded out the outside at described housing;

Described connecting ring is provided with adjusts the crack, and described adjustment crack is communicated with described connecting hole, and described connecting ring is provided with the adjustment screw, and described adjustment screw passes described housing and is screwed in the described connecting ring and passes described adjustment crack;

The inner face of described housing both sides respectively is provided with slideway, and the lateral surface of described two guide plates is respectively equipped with guide block near the place of rear end, and described guide block is stretched respectively and put in described slideway;

The end face of described centre mount is consolidated with the guiding reed, and described guiding reed guides described Screw band by passing described housing outside between described two guide plates; The below of described travelling gear is provided with pawl spring, and an end of described pawl spring is installed on the described guide plate, and the other end of described pawl spring is against on the double wedge of described travelling gear;

Described driver also includes slide and protruding pin, and described slide has roller, and described protruding pin is embedded in the place near described sliding base rear end; Describedly collude the front end that body is hubbed on described slide, one end of described flexible member is located at described colluding on the body, the other end of described flexible member is set on the described protruding pin, described sliding base rear end wall is provided with groove, a described end with the answer element is colluded with on described groove, and the other end of described answer element is located at the rear end of described housing; Described roller is in the middle rolling of leading the way of described guide plate, and the described side that colludes body is provided with guide wheel, and described guide wheel is stretched and put in the arc road of described guide plate.

The auto-feeder of screw machine provided by the present invention can cooperate the use of electric drill and Screw band really, screws togather automatically and the effect of continuous feed screw and have, and reaches the high-efficiency homework that screws togather continuously.

Technology, means are now enumerated than embodiment and conjunction with figs. for achieving the above object, and after being described in more detail in, wherein accompanying drawing is respectively:

Fig. 1 is the cutaway view of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 2 is the horizontal part cutaway view of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 3 is the three-dimensional exploded view of driver of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 4 is the stereogram of centre mount of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 5 is the rearview of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 6 is the schematic diagram of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention will be assemblied on the electric drill time;

Fig. 7 is the action schematic diagram of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 8 is another action schematic diagram of the auto-feeder preferred embodiment of the screw machine that proposes of the present invention;

Fig. 9 is the action schematic diagram of auto-feeder preferred embodiment when screwing togather operation of the screw machine that proposes of the present invention;

Figure 10 is that the auto-feeder preferred embodiment of the screw machine that proposes of the present invention screws togather the view when finishing;

Figure 11 is auto-feeder preferred embodiment another action schematic diagram when screwing togather operation of the screw machine that proposes of the present invention;

Figure 12 is the front view of Screw band when not setting firmly screw as yet;

Figure 13 is the cutaway view that Screw band has been installed with screw.

At first, see also Fig. 1, this figure is the cutaway view of preferred embodiment of the present invention; The auto-feeder 1 that present embodiment provided, comprise and be hollow casing 2, interlocking and only showing a guide plate among the connecting ring 3 of the termination of housing 2, the guide plate 4(figure that can move with respect to housing 2), the driver 5(between two guide plates 4 for make diagram clear for the purpose of, driver 5 is not analysed and observe), be fixed in centre mount 6 between two guide plates 4, be arranged in main in the middle of the housing 2 reply element 7 and driver 5 can be retracted two times of original position reply element 8(figure only show reply element one time); Connecting ring 3 is provided with connecting hole 31, and connecting hole 31 internal diameters are provided with internal thread, establishes stacker 32 at connecting hole 31 towards a side spiral shell of housing 2 inside, and stacker 32 has center hole, and a main end of replying element 7 is set on the stacker 32; Guide plate 4 is provided with leads the way 41(as shown in Figure 7), and 41 the front end of leading the way is reclinate arc road 411, and convexes with semicircular guide groove 42 at the medial surface of this guide plate 4 one side of housing 2 inside (just towards); Centre mount 6 is located at the inside of housing 2, and be mounted in the centre of two guide plates 4, centre mount 6 has central through-hole 61, the center line position of the connecting hole 31 of the center line of central through-hole 61 and connecting ring 3 is on same straight line, centre mount 6 rear ends are provided with bulge loop cylinder base 60, and the main other end of replying element 7 is sheathed and be positioned on the bulge loop cylinder base 60.

See also shown in Figure 2, this figure be preferred embodiment of the present invention horizontal part cutaway view (for convenience of explanation, centre mount 6 is not analysed and observe), and please look back showing of Fig. 1, side inner face on housing 2 both sides respectively is provided with slideway 21, and respectively be provided with guide block 48 at the lateral surface of two guide plates 4 respectively near the place of rear end, guide block 48 can be stretched respectively and put in two slideways 21 of housing 2, so that guiding housing 2 can move with respect to two guide plates 4; Two guide grooves 42 of two guide plates 4 are reciprocally corresponding, make to retain between two guide plates 4 and have living space, and pass through for the screw that will screw togather (not showing among the figure); Respectively be provided with the positioning body 47 of protrusion at the medial surface of two guide plates 4, all offer hole 471 on the positioning body 47; The front end both sides of centre mount 6 respectively are provided with holder 62 and 63, and holder 62 and 63 can be mounted in respectively in two holes 471 of positioning body 47, are fixed on two effects between the guide plate 4 to reach centre mount 6; And the medial surface of one of them guide plate 4 is equiped with adjustment location-plate 15, adjusts location-plate 15 and offers adjustment slotted hole 151, can utilize screw 152 will adjust holder 63 outsides that location-plate 15 is cemented in centre mount 6; The joint pin 44 that the inboard of another guide plate 4 protrudes out near partly being respectively equipped with up and down of rear end and 45(please cooperate consult shown in Figure 1), resistance can be bumped on the medial surface of another guide plate 4 in these two

joint pins

44 and 45 outer face, and can utilize retaining thread 46 to be screwed on

joint pin

44 and 45 respectively simultaneously by the lateral surface of another guide plate, reach the effect of two guide plates 4 that is connected, and two guide plates 4, centre mount 6 and adjustment location-plate 15 are linked together.

Seeing also shown in Figure 3ly again, is the three-dimensional exploded view of the driver of preferred embodiment of the present invention, and driver 5 comprises slide 51, and what be hubbed on slide 51 front ends colludes body 52, is connected with and is colluding the flexible member 54 on the body 52 and be embedded at the protruding pin 55 near slide 51 rear ends; Both sides on the aft bulkhead of slide 51 respectively are provided with groove 514, these two grooves 514 are replied element 8(for aforementioned two times respectively and please be looked back shown in Figure 1) an end collude with, build-in has the pin 512 of protrusion respectively near the both sides wall of slide 51 rear ends, and the external end head of pin 512 is provided with roller 513, and two rollers 513 can be stretched respectively and put leading the way (as shown in Figure 1) in 41 on guide plate 4, and can roll in 41 leading the way; Collude body 52 and have connecting rod 521, the two ends of connecting rod 521 respectively is provided with colludes shape thing 522, collude shape thing 522 and be provided with pivot hole 523, respectively be provided with trunnion 511 in place near slide 51 front end both sides, and the external end head of trunnion 511 is provided with guide wheel 510, guide wheel 510 is stretched respectively and is put in the arc road 411 of two guide plates 4, and can move in arc road 411; Colluding two of body 52 colludes shape thing 522 and utilizes two trunnions 511 to pass pivot hole 523 and collude the front end that shape thing 522 is hubbed on slide 51 with two respectively, the front end that colludes shape thing 522 colludes the bottom surface (as showing of Fig. 1) that tip part is protruded slide 51, an end of flexible member 54 colludes and is located on the connecting rod 521 that colludes body 52 simultaneously, the other end of flexible member 54 is fixed on the protruding pin 55, so just make that colluding body 52 can swing for axle by trunnion 511, and by the setting of flexible member 54, make the shape thing 522 that colludes that colludes body 52 bump resistance during barrier moving ahead, but upward swings and clearing the jumps, and after crossing, can mat flexible member 54 back stretch and put back original position again.

Please continue to consult shown in Figure 4, be the stereogram of the centre mount of preferred embodiment of the present invention;

End face at centre mount 6 is consolidated with guiding reed 64, and the front end of the central through-hole 61 of centre mount 6 be provided with can the ccontaining screw terminal that will screw togather (not having among the figure to show) the space, on holder 62 and 63, be arranged with travelling gear 56 respectively, travelling gear 56 is composed components of driver 52, figure can obviously learn thus, and a main end of replying element 7 can be nested on the bulge loop cylinder base 60 of centre mount 6.

Please continue to see also shown in Figure 5, it is the rearview of preferred embodiment of the present invention, housing 2 is assembled by two shells, side at housing 2 offers adjustment hole 22(as shown in phantom in FIG.), connecting ring 3 embeddings are clipped in the follower head of housing 2, and connecting ring 3 is provided with adjustment crack 30, adjust crack 30 and be communicated with connecting hole 31, connecting ring 3 can utilize magnifying of adjustment crack 30 or dwindle, and the size of adjustment or variation connecting hole 31, adjust screw 32(as shown in phantom in FIG.) be screwed into connecting ring 3 by the adjustment hole 22 of housing 2, and pass and adjust crack 30, when adjustment screw 32 screw-ins are darker or tighter, can dwindle the spacing of adjusting crack 30, and dwindle the diameter of connecting hole 31 indirectly; When if adjustment screw 32 screw-ins are more shallow, the spacing of adjusting crack 30 also just relatively increases, and then expands the diameter of connecting hole 31; The breech face of the described adjustment location-plate 15 of Fig. 2 can with the position, outer face of connecting ring 3 at grade, but and adjust partly bifurcated

composition plate

153 and 154 of location-plate 15 rear ends,

branch plate

153 and 154 can be kept away connecting ring 3 and protrude out outside at housing 2.

Please cooperate and consult shown in Figure 6ly, be the schematic diagram of preferred embodiment of the present invention will be assemblied on the electric drill time; In the time will being assemblied in auto-feeder 1 on the electric drill 9, select to be fit to be screwed into the connector 91 of electric drill 9 front ends earlier, then turn adjust screw 32 up to the connecting hole 31 of connecting ring 3 be fit to be connected 91 screw togather till, connector 91 is inserted in the connecting hole 31, with lock nut 92 connector 91 is locked on connecting ring 3, to adjust screw 32 and screw, fixed to guarantee; Last again another termination of connector 91 is screwed into electric drill 9 front ends, at this moment the rotating shaft of electric drill 9 (among the figure not show) can be passed connector 91 and be stretched by connecting hole 31 and to put in housing 2, utilize simultaneously another nut 93 to be located on the front end of electric drill 9 again, so just finished auto-feeder 1 and be fitted in operation on electric drill 9 front ends to guarantee connector 91 lockings.

Please look back shown in Figure 1, below travelling gear 56, be provided with pawl spring 57, one end of pawl spring 57 is installed on the following joint pin 45 of guide plate 4, the free end of pawl spring 57 is against on the double wedge of travelling gear 56, make travelling gear 56 can only do turn clockwise, and can not do the counterclockwise rotation, because a side of the recessed tooth of travelling gear 56 is braked reed 57 just and props up, when if travelling gear 56 is wanted the counterclockwise rotation, pawl spring 57 can prop up double wedge, and travelling gear 56 can't be rotated; When travelling gear 56 rotated clockwise, pawl spring 57 can prop up double wedge, and travelling gear 56 can't be rotated; When travelling gear 56 rotated clockwise, pawl spring 57 can't hinder travelling gear 56 rotations, so the travelling gear 56 of the driver 5 of present embodiment can only be done unidirectional turn.

When auto-feeder 1 does not also move, the flexible member 54 of lead and reply element 7, replying part 8 and driver 5 for two times all is not compressed or stretches, this moment driver 5 two hooks 522 collude point, collude left side (state as shown in Figure 1) respectively at the double wedge of two travelling gears 56; And when the front end of two guide plates 4 is against on the acting surface 10, just can oppress housing 2 moves to acting surface 10 directions, please cooperate shown in the action schematic diagram of the preferred embodiment of the present invention of consulting Fig. 7, because two guide plates 4 have propped up acting surface 10 and can't move, so housing 2 can move relative to two guide plates 4, and the main element 7 of replying of compression, the slide 51 that promotes driver 5 by two inferior answer elements 8 moves forward simultaneously, slide 51 utilizes roller 513 and moves in 41 leading the way, and the hook 522 of driver 5 utilizes guide wheel 510 to move in arc road 411, when hook 522 is following arc road 41 and is advancing, the colluding point and can bump resistance on the double wedge of travelling gear 56 of hook 522, because travelling gear 56 can not rotate (because travelling gear 56 turn clockwise), so hook 522 is bumping resistance in double wedge, pendulum in the meeting and cross double wedge, and tensile elasticity element 54, after hook 522 is crossed double wedge, hook 522 is the bottom and reinstatement through the restoring force of flexible member 54 again, continuing following arc road 411 again advances, when guide wheel 510 arrives the front end in arc road 411, hook 522 is just no longer mobile, slide 51 also do not readvance (state as shown in Figure 7), but at this moment housing 2 does not also arrive the location, still move on, at this moment reply element 8 for two times and just can be compressed, arrive the location up to housing 2 and end.

Please cooperate consult shown in Figure 8, it is another action schematic diagram of preferred embodiment of the present invention, after housing 2 arrives the location, just no longer apply pressure to housing 2, at this moment housing 2 can utilize the compressed main restoring force of replying element 7 because of aforementioned activities, and move backward, simultaneously more by compressed two inferior restoring forces of replying elements 8, and move behind the slide 51 of pulling driver 5, and then move after driving hook 522, because hook 522 is to follow arc road 411 and moving by guide wheel 510, and the curvature in arc road 411 is identical with the curvature of travelling gear 56, so the colluding point and can follow the flank of tooth of travelling gear 56 and move of hook 522, make travelling gear 56 to be driven by hook 522, till the restoring force of two answer elements 8 disappears, because inferior answer element 8 is a kind of elastomers, the phenomenon of vibration back and forth takes place when resilience easily, so the angle that travelling gear 56 is rotated is crossed desired angle, state is as shown in Figure 1 represented desired angle, and STA representation shown in Figure 8 surpasses the expection angle, just as can be known by state shown in Figure 8, the point that colludes of hook 522 no longer colludes the double wedge limit of touching at travelling gear 56, the free end of pawl spring 57 does not touch on another double wedge limit that is against travelling gear 56 yet simultaneously, so in this state, if push housing 2 once more, equally can be as aforesaid action slide 51 reaches of pusher 5, but because pawl spring 57 blocking travelling gear 56 no longer, so when the colluding point and touch on the double wedge 560 at travelling gear 56 of hook 522, can promote travelling gear 56 counterclockwises rotates, bump resistance till on the free end of pawl spring 57 up to another double wedge 560 of travelling gear 56, this moment, the slide 51 of driver 5 still moved on, cause hook 522 also to move as described above and cross double wedge 560, and then reach user mode shown in Figure 7 as described above, so, even when travelling gear 56 is driven unintended locations, can not influence the correctness that it moves next time yet.

As for present embodiment when screwing togather operation, must cooperate Screw band to use together, see also shown in Figure 12, be the front view of Screw band when also not setting firmly screw, the end face of Screw band 16 is provided with a plurality of locating holes of equidistantly being separated by 161, be respectively equipped with spaced apart from each other and continuous draw-in groove 162 at nail with 16 both sides, just relatively respectively be provided with draw-in groove 162 respectively with 16 both sides at the nail in adjacent two locating hole 161 centre positions, simultaneously around each locating hole 161, all offer through hole 163, and through hole 163 is with on the radial circumference that is connected locating hole 161.

Please cooperating again and consult shown in Figure 13ly, is the cutaway view that Screw band has been installed with screw; Nail approximates or is slightly less than the screw 17 that will locate or 18 major diameter of thread greatly with the internal diameter of each locating hole 161 of 16, and the internal diameter of locating hole 161 is also less than the spiral shell head external diameter of the screw 17 that will locate or 18, simultaneously, two through holes 163 that are located along the same line and the locating hole 161 between through hole 163 make the nail in the scope of two through holes 163 that straight line is relative be with 16 to be hollow state, the nail that causes through hole 163 to exist is not strong with 16 zone, be easy to be broken up, therefore please look back imaginary area shown in Figure 12 at the nail that is provided with through hole 163 with 16 regional 165() greater than the spiral shell head external diameter of the screw 17 that will locate or 18, so be positioned at nail with the screw 17 on 16 or 18 when being subjected to external force and promoting, can puncture nail easily and be with 16 and break away from, reach the effectiveness of using

screw

17 or 18.

When present embodiment will be applied in when screwing togather operation, auto-feeder 1 must be located at the front end of electric drill 9 as shown in Figure 6, so just constitutes the screw machine that screw can be screwed togather automatically; The Screw band 16 that will be positioned with a plurality of

screws

17 or 18 then stretches in the front end of auto-feeder 1, just Screw band 16 stretches in the preceding end spaces of centre mount 6, and make corresponding two the draw-in groove 162(in Screw band 16 both sides please look back shown in Figure 12) be engaged on respectively on the double wedge of two travelling gears 56 of driver 5, and the spiral shell head 171 that makes first screw 17 is aimed at electric drill 9(not demonstration in Fig. 9 just, please look back shown in Figure 6) the front end of rotating shaft 96, then screw machine is moved on to the two articles 13 and 14 places that will screw togather that will be fixed together, and the front end that makes two guide plates 4 of auto-feeder 1 is resisted against on the object 13, please cooperate and consult shown in Figure 9ly, be the action schematic diagram of preferred embodiment of the present invention when screwing togather operation; After the front end of two guide plates 4 is resisted against on the object 13, electric drill 9 to object 13 pressuring directions will force the housing 2 of auto-feeder 1 to move on the one hand, the front end of the rotating shaft 96 of electric drill 9 is stretched in the spiral shell head 171 of screw 17, start electric drill 9 then, make rotating shaft 96 drive screw 17 rotations, electric drill 9 is exerted pressure and is advanced to object 13 constantly, impel in screw 17 precession objects 13 and 14, at this moment, screw 17 can be because be subjected to the forward thrust of rotating shaft 96, and break up Screw band 16 and break away from Screw band 16, so just finish the operation that screws togather of screw 17; When finish screw togather operation after, just no longer screw machine is exerted pressure, at this moment, the housing 2 of auto-feeder 1 can move backward by the restoring force of main cause post-equalization part 7, and by compressed two inferior restoring forces of replying elements 8, the slide 51 of pulling driver 5 moves backward, and then move after driving hook 522, make travelling gear 56 by hook 522 driven rotary, till the restoring force of two answer elements 8 disappears, at this moment, two driven gears 56 of driver 5 rotate a tooth pitch just, and then drive Screw band 16 and advance to two positions between the adjacent draw-in groove 162, and the spiral shell head 181 of next screw 18 are positioned at prepare the position (just aiming at the front position of rotating shaft 96) that screws togather, so that carry out the operation that screws togather next time, so can reach the effect of continuous feed screw really; In order to prevent to stretch in the housing 2 with the Screw band of crossing 16, the free end of guiding reed 64 is pressed on the side of Screw band 16, to guide with the Screw band of crossing 16 by passing housing 2 outsides between two guide plates 4, in order to avoid influence the action that screws togather of another time of screw machine.

Please consulting shown in Figure 10ly again, is that preferred embodiment of the present invention screws togather the view after finishing; In the rotating shaft 96 of electric drill 9 is screwed into screw 17 process in the object 13, locking partly will be passed connecting ring 3 and protrude housing 2 outsides gradually at the tail end of the adjustment location-plate 15 of centre mount 6 sides, when screw 17 screwed togather finish after, the tail end of adjusting location-plate 15 can touch the leading section of electric drill 9 simultaneously, make electric drill 9 can't continue again because being adjusted stopping of location-plate 15 to advance, this can allow the operator learn to screw togather already and finish, do not need to exert pressure again and can discharge the switch of electric drill 9, so, by the setting of adjusting location-plate 15, can accurately control the feeding distance that screws togather of screw machine, it is very convenient to operate; The adjustment slotted hole 151 that adjustment location-plate 15 is offered is provided with for the screw that cooperates different length, when Screw band 16 is fitted on the auto-feeder 1, if the screw tail end that screws togather has protruded the outside of guide plate 4, at this moment can unscrew fixing the screw 152 of adjusting location-plate 15, and will adjust location-plate 15 and pull out, up to the front end of adjusting location-plate 15 with till the screw tail end that will screw togather flushes, and then screw 152 screwed, will adjust the side that location-plate 15 is fixed on centre mount 6, like this, at mobile screw machine during to the position that will screw togather, no longer touch surface to object with two guide plates 4, but touch the surface that is against object with the front end of adjusting location-plate 15, to carry out the aforesaid operation that screws togather; Simultaneously, because the screw length that is screwed into is long, so long distance of the essential pushing of electric drill, at this moment adjust location-plate 15 and pulled out certain length in advance, so adjusting the length that tail end protruded of location-plate 15 can relatively shorten, and make after the long distance of electric drill 9 pushings, just can bump resistance at the tail end of adjusting location-plate 15, and the distance that electric drill 9 is pushed is that the screw that equals to screw togather protrudes the distance of guide plate 4 outsides just, so, the auto-feeder of screw machine of the present invention can be controlled the distance that screws togather feeding exactly, applicable to the effect that screws togather of unequal length screw.

See also again shown in Figure 11, be preferred embodiment of the present invention when screwing togather operation another the action schematic diagram; When the angle of travelling gear 56 rotations is crossed desired angle, the spiral shell head 181 of next screw 18 is not aligned on the front position of rotating shaft 96, at this moment pawl spring 57 is not conflicted on the double wedge limit of driven gear 56, so, when pushing housing 2 once more, action that equally can be as previously described is the same, promote hook 522 reaches again, and the sharp public affairs of colluding of hook 522 are touched at the double wedge of travelling gear 56 and are driven travelling gear 56 counterclockwises and rotate, also travelling backwards of Screw band 16 simultaneously along with travelling gear 56, till the free end of pawl spring 57 bumps on resistance another double wedge at travelling gear 56, this moment, screw 18 was moved to the position (just spiral shell head 181 is being aimed at the central through-hole 61 of centre mount 6) that preparation screws togather gradually, the front end of rotating shaft just 96 is aimed at the position of spiral shell head 181 just, and rotating shaft 96 can be stretched in the spiral shell head 181, to reach the effect of spinning screw 18, finish the action that screws togather screw 18 as previously described, so, when even travelling gear 56 is driven unintended locations, what also can not have influence on screw machine screws togather operation next time.

Claims

1, a kind of auto-feeder of screw machine is characterized in that: the auto-feeder of described screw machine comprises housing, connecting ring, two guide plates, driver, centre mount, main answer element, electric drill, inferior answer element and Screw bands; Described housing is hollow form, described connecting ring interlocking is at an end of described housing, and described two guide plates move with respect to described housing, and described driver is between described two guide plates, described centre mount is fixed between described two guide plates, and the described main element of replying is positioned at described housing; Described connecting ring is embedded the rear end at described housing, and described connecting ring is provided with connecting hole; Described two guide plates lay respectively at the both sides of described enclosure interior, and described two guide plates are affixed mutually, and the medial surface of described two guide plates respectively is provided with positioning body, and the front end of described two guide plates protrudes out the outside at described housing front end; Described centre mount has central through-hole, and the center line position of the center line of described central through-hole and the connecting hole of described connecting ring is on same straight line; Described electric drill is provided with rotating shaft, and the rotating shaft of described electric drill penetrates in the described connecting hole and stretches and put in described central through-hole; A described main end of replying element is enclosed within the rear end of described centre mount, and the described main other end of replying element is resisted against the inner face of described connecting ring; Described driver comprises and colludes body, travelling gear and flexible member, and the described body that colludes moves on guide plate, and described travelling gear is located at the side of centre mount, and the described body that colludes colludes and touches on described travelling gear, and described Screw band is engaged on the described travelling gear.

2, according to the auto-feeder of the described screw machine of claim 1; It is characterized in that: described guide plate is provided with leads the way, and described front end of leading the way is reclinate arc road, and the curvature in described arc road is identical with the curvature of the travelling gear of described driver, and the described flank of tooth that point following described travelling gear that colludes that colludes body moves.

3, according to the auto-feeder of the described screw machine of claim 1; It is characterized in that: the front end both sides of described centre mount respectively are provided with holder, described holder is mounted in respectively in the positioning body of described two guide plates, the medial surface of one of them in described two guide plates is equiped with the adjustment location-plate, described adjustment location-plate is provided with the adjustment slotted hole, and described adjustment location-plate is cemented in the outside of described holder; When described housing moved with respect to described guide plate, the tail end of described adjustment location-plate protruded out the outside at described housing.

4, according to the auto-feeder of the described screw machine of claim 1; It is characterized in that: described connecting ring is provided with adjusts the crack, and described adjustment crack is communicated with described connecting hole, and described connecting ring is provided with the adjustment screw, and described adjustment screw passes described housing and is screwed in the described connecting ring and passes described adjustment crack.

5, according to the auto-feeder of the described screw machine of claim 1; It is characterized in that: the inner face of described housing both sides respectively is provided with slideway, and the lateral surface of described two guide plates is respectively equipped with guide block near the place of rear end, and described guide block is stretched respectively and put in described slideway.

6, according to the auto-feeder of the described screw machine of claim 1; It is characterized in that: the end face of described centre mount is consolidated with the guiding reed, and described guiding reed guides described Screw band by passing described housing outside between described two guide plates; The below of described travelling gear is provided with pawl spring, and an end of described pawl spring is installed on the described guide plate, and the other end of described pawl spring is against on the double wedge of described travelling gear.

7, according to the auto-feeder of the described screw machine of claim 2; It is characterized in that: described driver also includes slide and protruding pin, and described slide has roller, and described protruding pin is embedded in the place near described sliding base rear end; Describedly collude the front end that body is hubbed on described slide, one end of described flexible member is located at described colluding on the body, the other end of described flexible member is set on the described protruding pin, described sliding base rear end wall is provided with groove, a described end with the answer element is colluded with on described groove, and the other end of described answer element is located at the rear end of described housing; Described roller is in the middle rolling of leading the way of described guide plate, and the described side that colludes body is provided with guide wheel, and described guide wheel is stretched and put in the arc road of described guide plate.