CN208743850U - Have both the automatic tapping machine of adaptive tapping with synchronous tapping - Google Patents

Abstract

The utility model relates to machining apparatus field, in particular to a kind of automatic tapping machine for having both adaptive tapping with synchronous tapping.The utility model includes electric machine assembly, screw-and-nut mechanism, travel switch component, screw pitch adaptation spring, switching device and air cylinder device；Electric machine assembly includes shell, stator, rotor core and electric machine main shaft；Electric machine main shaft is made of sleeve body and inner shaft, and the lower end of inner shaft is equipped with the connecting component for installing screw tap or screw die；Screw-and-nut mechanism includes driving screw, main nut, guide rod, main nut mounting base, bottom plate and upper mounted plate；Switching device includes that output gear, input gap bridge spool gear, train of reduction gears and adjustable gear support base, switching device further include position fixing apparatus and limiting device.The utility model adapts to the tapping of different screw pitch, has a wide range of application, and can improve tapping precision, avoids the occurrence of rotten tooth, the problems such as screw tap fractures, and reduces manufacturing cost.

Description

Have both the automatic tapping machine of adaptive tapping with synchronous tapping

Technical field

The utility model relates to machining apparatus field, in particular to it is a kind of have both adaptive tapping and synchronous tapping from Dynamic tooth machining unit.

Background technique

It is disclosed application No. is 201610764734.6 patent of invention and a kind of adapts to difference using motor elasticity inner shaft The automatic tapping machine of screw pitch tapping, the tapping function carry out adaptive tapping using elastic inner shaft, and the screw tap of different screw pitch is equal It can be adaptive.But this structure is when attacking the lesser screw thread of screw pitch (such as 0.2,0.25,0.35,0.4,0.5), due to driving screw The speed of advance and screw tap forward speed difference are too big, so that screw pitch adapts to spring and presses to obtain tension, be easy to cause tapping precision low, Even there is rotten tooth, the problems such as screw tap fractures, to cause damages to enterprise, increases manufacturing cost.

Utility model content

The purpose of this utility model is to provide a kind of automatic tapping machines for having both adaptive tapping with synchronous tapping, should be certainly Automatic tapping machine is switched to adaptive tapping or synchronous tapping two states using switching device by dynamic tapping function, is attacking big spiral shell Away from tooth when switch to adaptive tapping state, adapt to the tapping of different screw pitch, have a wide range of application, in the tooth for attacking fine pitch Synchronous tapping state is switched to, tapping precision can be improved, avoids the occurrence of rotten tooth, the problems such as screw tap fractures, reduces manufacturing cost.

The utility model is realized in this way: a kind of automatic tapping machine having both adaptive tapping with synchronous tapping, it is special Sign is: including electric machine assembly, the electric machine assembly includes for the shell of connection is fixedly mounted with external rack, is fixed on shell Intracorporal stator, the rotor core being movably set in the middle part of stator and the electric machine main shaft being set in the middle part of rotor core；It is described It is intracorporal that electric machine main shaft by the sleeve body that is coaxially fixedly installed in rotor core medium pore and is coaxially movably set in sleeve body Inner shaft composition, the both ends of the sleeve body are rotationally connected on shell, and the inner shaft cannot rotate relative to sleeve body but can be opposite Sleeve body axial movement, the lower end of inner shaft is provided with the connecting component for installing screw tap or screw die；

The automatic tapping machine further includes for driving the flexible screw-and-nut mechanism for carrying out tapping of inner shaft, for controlling After the completion of tapping depth processed and tapping electric machine assembly shut down travel switch component, be connected to sleeve body and bolt and nut driver The switching device switched between adaptive tapping state and synchronous tapping state for controlling automatic tapping machine between structure with And the air cylinder device for driving inner shaft fast advance and retreat in idle stroke；

The screw-and-nut mechanism include driving screw, main nut, guide rod, main nut mounting base, bottom plate and Upper mounted plate；The bottom plate is fixedly arranged on shell upper end, and the quantity of the guide rod is that more than two and guide rod both ends are hung down respectively It is directly fixedly arranged on bottom plate and upper mounted plate, the main nut is rotationally connected in main nut mounting base, the main nut peace Dress seat is slidably connected on guide rod and main nut can be driven to move up and down between bottom plate and upper mounted plate, the driving screw Lower end be optical axis and coaxially connected with the upper end of inner shaft, the driving screw cannot opposite inner shaft rotation but can be with respect to internal axle axial Mobile, the upper end of the driving screw is equipped with the screw thread to match with main nut internal perisporium, the upper end of the driving screw and main nut Screw thread screw up pairing connection and the screw pitch of main nut and driving screw screw thread be greater than or equal to screw tap or screw die to be mounted spiral shell Away from；

The automatic tapping machine further includes being set to being pacified between inner shaft and driving screw for compensating inner shaft in tapping Screw tap or screw die and driving screw are filled because the screw pitch of range difference caused by screw pitch difference forward or backward adapts to spring；

The switching device is set between bottom plate and upper mounted plate, and the switching device includes coaxially being fixedly arranged on axis Output gear on body upper end, is connected to the input gap bridge spool gear being rotationally connected between bottom plate and upper mounted plate Train of reduction gears and one end between output gear and input gap bridge spool gear are rotationally connected on bottom plate and are used to pacify The adjustable gear support base of train of reduction gears is filled, the adjustable gear support base can be using the center of output gear as center of rotation band Dynamic train of reduction gears rotation is engaged with input gap bridge spool gear or is disengaged with input gap bridge spool gear, the main nut Periphery is equipped with the gear teeth being meshed with input gap bridge spool gear, and the switching device further includes in adjustable gear support base tune It is whole in place when fixedly adjustable gear support base position position fixing apparatus and for train of reduction gears and input pass a bridge length The gear-meshing time limit system of being out of gear inputs the limiting device of gap bridge spool gear rotation.

In order to so that main nut is rotate in same direction with driving screw and the velocity of rotation of main nut be lower than driving screw velocity of rotation, The train of reduction gears includes being rotationally connected with the output being meshed on adjustable gear support base lower end surface and with output gear Axle gear, the fixed gear for being rotationally connected on adjustable gear support base lower end surface and being meshed with output carrier gear and setting In on adjustable gear support base upper surface and with the coaxial fixed replaceable gear of fixed gear, adjustable gear support base rotation When can drive replaceable gear with input gap bridge spool gear lower end be engaged or with input gap bridge spool gear lower end be disengaged.

Electric machine assembly is shut down after the completion of depth and tapping in order to can control tapping, and the travel switch component includes one end It is rotationally connected on upper mounted plate and can be respectively perpendicular with the upper movable supporting plate of adjustable gear support base unitary rotation, both ends solid Guide post on upper movable supporting plate lower end surface and adjustable gear support base upper surface, the adjustable row being slidably connected on guide post Journey support base and lower end be fixedly and coaxially connected in output carrier gear on and upper end be rotationally connected on upper movable supporting plate Stud is driven, the driving stud is threadedly coupled to drive range-adjustable support base to move up and down with range-adjustable support base, institute Travel switch component is stated to further include the tapping depth setting screws being threadedly connected on range-adjustable support base, be installed on adjustable tooth Wheel support base on and position commutation travel switch corresponding with tapping depth setting screws, be threadedly connected to range-adjustable support Shutdown on seat adjusts screw and is installed on movable supporting plate and position adjusts corresponding shut down of screw and approaches with shutting down Switch, the tapping depth setting screws can start electric machine assembly reverse rotation when touching commutation travel switch, described to stop Machine is sensing the power supply disconnection that can control electric machine assembly when shutting down and adjusting screw close to switch.

In order to easily limit input gap bridge spool gear rotation, the limiting device is the gear being set on bottom plate Plate, the baffle can be rotated into and out limiting or not limiting input gap bridge long tooth in the tooth socket of input gap bridge spool gear It is dynamic.

In order to quickly inner shaft be driven to retreat in idle stroke, working efficiency is improved, the air cylinder device includes being fixedly arranged on Cylinder body on upper mounted plate, the piston component being slidably connected in cylinder body, upper end be fixedly connected with piston component and The cylinder rod that lower end stretches out cylinder is originally fixedly connected with main nut mounting base in vitro is coaxially provided with for accommodating in the cylinder rod The accommodating cavity of driving screw upper end.

In order to be adjustable the distance of idle stroke to adapt to different workpiece, the automatic tapping machine further includes being set to cylinder Idle stroke regulating mechanism on device, the idle stroke regulating mechanism include lower end be fixedly connected with piston component and upper end dew set The idle stroke adjusting nut for adjusting cylinder rod in the idle stroke outside cylinder body, being threadedly connected to idle stroke adjusting cylinder rod upper end The upper surface of idle stroke adjusting nut is held out against with the lower end surface of idle stroke fastening screw nut, the idle stroke fastening screw nut.

In order to prevent driving screw from rotating but can be coaxially provided in internal axle axial movement, the inner shaft straight relative to inner shaft The installation duct that diameter and driving screw lower end optical axis match, driving screw lower end optical axis are movably set in installation duct, institute It states inner shaft top and is equipped with axially distributed long slot hole, be installed with diameter and elongated slot hole width phase on the optical axis of the driving screw lower end Matched pin, the pin, which is snug fit in long slot hole, prevents driving screw from relative to inner shaft rotation but the opposite inner shaft axis of energy To movement, the screw pitch adaptation spring is set in installation duct and compression is under installation duct bottom end face and driving screw It holds between end face.

In order to be adjustable the pretightning force that screw pitch adapts to spring, the automatic tapping machine further includes being set to installation duct bottom End face and screw pitch adapt to the preload adjustment device for adapting to the pretightning force of spring for adjusting screw pitch between spring, and the preload is adjusted Engagement positions include the adjustment bolt being set on installation duct bottom end face and are threadedly connected in adjustment bolt and upper surface The lifting nut that lower spring end is fixedly connected is adapted to screw pitch, the adjustment bolt can drive lifting nut oscilaltion when rotating To adjust the pretightning force that screw pitch adapts to spring, the bolt head of the adjustment bolt is multi-diameter shaft, and the shaft shoulder of multi-diameter shaft is pressed in peace It fills on the bottom end face of duct, the bolt head lower end surface of the adjustment bolt, which is equipped with to protrude into convenient for screwdriver, rotates it Flat recess.

In order to prevent inner shaft from rotating but sleeve body can be moved axially relatively relative to sleeve body, the outer circle of the sleeve body is tight Cooperation is fixedly mounted in the medium pore of rotor core, and the upper section coaxial sleeve of the inner shaft is set in sleeve body, in the inner shaft Equipped with axially distributed keyway, guide pin, the fixed peace in one end of the guide pin are also equipped between the sleeve body and inner shaft Loaded on sleeve body, the other end width and width of keyway of the guide pin match and are slidably connected in keyway, to make Inner shaft cannot rotate relative to sleeve body but can opposite sleeve body axial movement.

Further, described for install screw tap or the connecting component of screw die to include collet and chuck nut, inner shaft lower end Middle part is equipped with the internal taper hole for being used to connect with collet, and inner shaft lower end periphery is equipped with the external screw thread for being used to connect with chuck nut.

For the prior art, the utility model is had the advantage that

(1) automatic tapping machine provided by the utility model for having both adaptive tapping with synchronous tapping can utilize switching dress It sets and automatic tapping machine is switched into adaptive tapping or synchronous tapping two states, switched to when attacking the tooth of big screw pitch adaptive Tapping state adapts to the tapping of different screw pitch, has a wide range of application, and synchronous tapping state is switched in the tooth for attacking fine pitch, Tapping precision can be improved, avoids the occurrence of rotten tooth, the problems such as screw tap fractures, reduces manufacturing cost；

(2) automatic tapping machine provided by the utility model for having both adaptive tapping with synchronous tapping, in adaptively attacking When dental phenomenon, when the screw pitch of driving screw be greater than institute screw tap or screw die to be mounted screw pitch when, during tapping inner shaft advance Speed is controlled by the screw pitch of screw tap or screw die, and the screw pitch adaptation spring gradually oppressed between driving screw and inner shaft can be carried out inner shaft Axially self adjustment is to adapt to the screw pitch of screw tap or screw die to complete tapping；When the screw pitch of driving screw is equal to institute's silk to be mounted It is then synchronous tapping when the screw pitch of cone or screw die, design in this way is conducive to simplify structure and improves work efficiency, can be applicable in different screw pitch Tapping, have a wide range of application；When in synchronous tapping state, the power that sleeve body rotates is transferred to main spiral shell using gear set Mother drives main nut and driving screw to rotate in same direction, so that the speed that driving screw advances is equal to the speed that inner shaft is advanced, to realize Synchronous tapping, replaceable gear is replaced in which can be convenient, to adapt to the tapping of different screw pitch；

(3) automatic tapping machine provided by the utility model for having both adaptive tapping with synchronous tapping, by electric machine main shaft point At by sleeve body and inner shaft, sleeve body is fixedly installed in rotor core medium pore solution, inner shaft cannot relative to sleeve body rotate but It sleeve body can move axially relatively, therefore directly inner shaft can be used as lifting shaft at work, to save transmission shaft, skin Band, clutch and gear, simplify structure, manufacturing cost is low；

(4) automatic tapping machine provided by the utility model for having both adaptive tapping with synchronous tapping is equipped with air cylinder device, It is able to achieve fast advance and retreat in idle stroke, improves working efficiency, and idle stroke can be adjusted using idle stroke regulating mechanism Distance, can be suitably used for different workpiece, and use scope is wide；

(5) automatic tapping machine provided by the utility model for having both adaptive tapping with synchronous tapping, main nut and input Gap bridge spool gear is engaged, and when idle stroke fast advance and retreat, main nut can be slided on gap bridge spool gear, ingenious in design, It ensure that the smooth realization of idle stroke fast advance and retreat；

(6) automatic tapping machine provided by the utility model for having both adaptive tapping with synchronous tapping, train of reduction gears peace On adjustable gear support base, adjustable gear support base can drive train of reduction gears by center of rotation of the center of output gear Rotation is engaged with input gap bridge spool gear or is disengaged with input gap bridge spool gear, when being disengaged, replaceable gear Idle running, input gap bridge spool gear locked using baffle, be able to rotate main nut not, with guarantee adaptive tapping it is smooth into Row, easy switching between adaptive tapping state and synchronous tapping state, switch speed are fast.

Detailed description of the invention

The utility model is described in further detail in conjunction with the embodiments with reference to the accompanying drawings:

Fig. 1 is the three dimensional structure diagram that the utility model has both adaptive tapping with the automatic tapping machine of synchronous tapping；

Fig. 2 is the three-dimensional structure that the utility model has both adaptive tapping with another visual angle of the automatic tapping machine of synchronous tapping Schematic diagram；

Fig. 3 is the half-sectional structural representation of three-dimensional that the utility model has both adaptive tapping with the automatic tapping machine of synchronous tapping Figure；

Fig. 4 is the three dimensional structure diagram of the utility model inner shaft, screw pitch adaptation spring and driving screw；

Fig. 5 is the three-dimensional structure signal of the utility model screw-and-nut mechanism, travel switch component and switching device Figure (explodes part)；

Fig. 6 is the three-dimensional of the utility model screw-and-nut mechanism, travel switch component and another state of switching device Structural schematic diagram (explodes part)；

Fig. 7 is the three-dimensional of the utility model screw-and-nut mechanism, travel switch component and another visual angle of switching device Structural schematic diagram (explodes part).

Symbol description in figure: 1- electric machine assembly, 101- shell, 102- stator, 103- rotor core, 104- sleeve body, 105- inner shaft, 1051- long slot hole, 1052- keyway, 1053- installation duct, 106- guide pin, 2- screw-and-nut mechanism, 201- driving screw, 202- main nut, 203- guide rod, 204- main nut mounting base, 205- bottom plate, 206- upper mounted plate, 207- pin, 3- travel switch component, the upper movable supporting plate of 301-, 302- guide post, 303- range-adjustable support base, 304- driving Stud, 305- tapping depth setting screws, 306- commutation travel switch, 307-, which is shut down, adjusts screw, and 308- is shut down close to switch, 4- switching device, 401- output gear, 402- input gap bridge spool gear, 403- adjustable gear support base, 404- limiting device, 405- exports carrier gear, 406- fixed gear, the replaceable gear of 407-, 5- air cylinder device, 501- cylinder body, 502- piston group Part, 503- cylinder rod, 5031- accommodating cavity, 6- screw pitch adapt to spring, 7- idle stroke regulating mechanism, and 701- idle stroke adjusts cylinder Bar, 702- idle stroke adjusting nut, 703- idle stroke fastening screw nut, 8- pre-tighten adjustment device, 801- adjustment bolt, 802- lifting Nut, 901- collet, 902- chuck nut.

Specific embodiment

The content of the present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification:

It as shown in figs. 1-7, is a kind of automatic screw for having both adaptive tapping with synchronous tapping provided by the utility model Machine, it is characterised in that: including electric machine assembly 1, the electric machine assembly 1 includes the shell for connection is fixedly mounted with external rack 101, the stator 102 that is fixed in shell 101, the rotor core 103 for being movably set in 102 middle part of stator and it is set to rotor The electric machine main shaft at 103 middle part of iron core；The electric machine main shaft is by the sleeve body that is coaxially fixedly installed in 103 medium pore of rotor core 104 are movably set in the intracorporal inner shaft 105 of sleeve body 104 composition with coaxial, and the both ends of the sleeve body 104 are rotationally connected with shell On body 101, the inner shaft 105 cannot be rotated relative to sleeve body 104 but sleeve body 104 can be moved axially relatively, under inner shaft 105 End is provided with the connecting component for installing screw tap or screw die；

The automatic tapping machine further includes for driving the flexible screw-and-nut mechanism 2 for carrying out tapping of inner shaft 105, using In control tapping depth and tapping after the completion of electric machine assembly shut down travel switch component 3, be connected to sleeve body 104 and screw rod spiral shell Between female transmission mechanism 2 switch between adaptive tapping state and synchronous tapping state for controlling automatic tapping machine cut Changing device 4 and in idle stroke drive 105 fast advance and retreat of inner shaft air cylinder device 5；

The screw-and-nut mechanism 2 include driving screw 201, main nut 202, guide rod 203, main nut mounting base 204, Bottom plate 205 and upper mounted plate 206；The bottom plate 205 is fixedly arranged on 101 upper end of shell, the quantity of the guide rod 203 It is respectively perpendicular and is fixedly arranged on bottom plate 205 and upper mounted plate 206 for more than two and 203 both ends of guide rod, the main nut 202 It is rotationally connected in main nut mounting base 204, the main nut mounting base 204 is slidably connected on guide rod 203 and can drive master Nut 202 moves up and down between bottom plate 205 and upper mounted plate 206, the lower end of the driving screw 201 be optical axis and with it is interior The upper end of axis 105 is coaxially connected, and the driving screw 201 cannot be rotated relative to inner shaft 105 but inner shaft 105 can be moved axially relatively, The upper end of the driving screw 201 is equipped with the screw thread to match with 202 internal perisporium of main nut, the upper end of the driving screw 201 and master 202 screw thread of nut screws up pairing connection and the screw pitch of 201 screw thread of main nut 202 and driving screw is greater than or equal to institute's silk to be mounted The screw pitch of cone or screw die；

The automatic tapping machine further includes being set between inner shaft 105 and driving screw 201 to be used in tapping in compensation The installed screw tap of axis 105 or screw die and driving screw 201 because screw pitch difference move forward or back caused by the screw pitch of range difference adapt to Spring 6；

The switching device 4 is set between bottom plate 205 and upper mounted plate 206, and the switching device 4 includes coaxial The output gear 401 that is fixedly arranged on 104 upper end of sleeve body, be rotationally connected with it is defeated between bottom plate 205 and upper mounted plate 206 Enter to pass a bridge spool gear 402, be connected to output gear 401 and input gap bridge spool gear 402 between train of reduction gears and one end The adjustable gear support base 403 for being used to install train of reduction gears being rotationally connected on bottom plate 205, the adjustable gear branch Support seat 403 can using the center of output gear 401 be center of rotation drive train of reduction gears rotation with input gap bridge spool gear 402 into Row engagement is disengaged with input gap bridge spool gear 402, and 202 periphery of main nut is equipped with and input gap bridge spool gear 402 The gear teeth being meshed, the switching device 4 further include for gear fixedly adjustable when adjustable gear support base 403 is adjusted in place The position fixing apparatus of 403 position of support base and for train of reduction gears with input gap bridge spool gear 402 be disengaged when The limiting device 404 that limitation input gap bridge spool gear 402 rotates.

As illustrated in figs. 5-7, in order to enable, main nut rotates in same direction with driving screw and the velocity of rotation of main nut is lower than main spiral shell The velocity of rotation of bar, the train of reduction gears include being rotationally connected on 403 lower end surface of adjustable gear support base and and output gear Wheel 401 be meshed output carrier gear 405, be rotationally connected on 403 lower end surface of adjustable gear support base and with output pass a bridge The fixed gear 406 and be set on 403 upper surface of adjustable gear support base and coaxial with fixed gear 406 that gear 405 is meshed Fixed replaceable gear 407, the adjustable gear support base 403 can drive replaceable gear 407 to pass a bridge with input when rotating 402 lower end of spool gear is engaged or is disengaged with input 402 lower end of gap bridge spool gear.

As shown in Fig. 1,2,3,5,6,7, electric machine assembly is shut down after the completion of the depth and tapping in order to can control tapping, described Travel switch component 3 is rotationally connected on upper mounted plate 206 including one end and can be with 403 unitary rotation of adjustable gear support base Upper movable supporting plate 301, both ends, which are respectively perpendicular, to be fixedly arranged on 301 lower end surface of movable supporting plate and adjustable gear support base 403 Guide post 302 on end face, the range-adjustable support base 303 being slidably connected on guide post 302 and lower end be fixedly and coaxially connected in On output carrier gear 405 and upper end is rotationally connected with the driving stud 304 on movable supporting plate 301, the driving stud 304 are threadedly coupled to drive range-adjustable support base 303 to move up and down with range-adjustable support base 303, the travel switch group Part 3 further includes the tapping depth setting screws 305 being threadedly connected on range-adjustable support base 303, is installed on adjustable gear branch On support seat 403 and position commutation travel switch 306 corresponding with tapping depth setting screws 305, it is threadedly connected to adjustable row Shutdown on journey support base 303 adjusts screw 307 and is installed on movable supporting plate 301 and position and shuts down and adjust screw The 307 corresponding close switches 308 of shutdown, the tapping depth setting screws 305 energy when touching commutation travel switch 306 Start electric machine assembly 1 to reversely rotate, described shut down close to switch 308 can control motor when sensing that shutdown adjusts screw 307 The power supply of component 1 disconnects.

As illustrated in figs. 5-7, in order to easily limit input gap bridge spool gear rotation, the limiting device 404 is setting Baffle on bottom plate 205, the baffle can into and out input gap bridge spool gear 402 tooth socket in limitation or not Limitation input gap bridge spool gear 402 rotates.

As shown in figure 3, improving working efficiency, the air cylinder device 5 in order to quickly inner shaft be driven to retreat in idle stroke Including the cylinder body 501 being fixedly arranged on upper mounted plate 206, the piston component 502 being slidably connected in cylinder body 501, on End is fixedly connected with piston component 502 and the outer cylinder being fixedly connected with main nut mounting base 204 of lower end stretches out cylinder ontology 501 Bar 503 is coaxially provided with the accommodating cavity 5031 for accommodating 201 upper end of driving screw in the cylinder rod 503.

As shown in Figure 1-3, the automatic tapping machine also wraps in order to be adjustable the distance of idle stroke to adapt to different workpiece The idle stroke regulating mechanism 7 being set on air cylinder device 5 is included, the idle stroke regulating mechanism 7 includes lower end and piston component 502 It is fixedly connected and idle stroke that upper end is placed on outside cylinder body 501 adjusts cylinder rod 701, is threadedly connected to idle stroke and adjusts gas The idle stroke adjusting nut 702 and idle stroke fastening screw nut 703 of 701 upper end of cylinder rod, the lower end of the idle stroke fastening screw nut 703 Face holds out against the upper surface of idle stroke adjusting nut 702.

As shown in Figure 3,4, in order to prevent driving screw from relative to inner shaft rotation but can opposite internal axle axial move, the inner shaft The installation duct 1053 that diameter and 201 lower end optical axis of driving screw match, the 201 lower end light of driving screw are coaxially provided in 105 Axis is movably set in installation duct 1053, and 105 top of inner shaft is equipped with axially distributed long slot hole 1051, the main spiral shell The pin 207 that diameter and 1051 width of long slot hole match is installed on 201 lower end optical axis of bar, the pin 207 is slidably matched In prevent in long slot hole 1051 driving screw 201 from relative to the rotation of inner shaft 105 but can opposite inner shaft 105 move axially, the spiral shell Away from adapting to, spring 6 is set in installation duct 1053 and compression is under installation 1053 bottom end face of duct and driving screw 201 It holds between end face.

As shown in figure 3, the automatic tapping machine further includes being set to peace in order to be adjustable the pretightning force that screw pitch adapts to spring Dress 1053 bottom end face of duct and screw pitch adapt to the preload tune for adapting to the pretightning force of spring 6 for adjusting screw pitch between spring 6 Engagement positions 8, the adjustment device 8 that pre-tightens includes the adjustment bolt 801 being set on installation 1053 bottom end face of duct and spiral shell Line is connected in adjustment bolt 801 and upper surface and adapts to the lifting nut 802 that 6 lower end of spring is fixedly connected, the tune with screw pitch Whole bolt 801 can drive 802 oscilaltion of lifting nut when rotating to adjust the pretightning force that screw pitch adapts to spring 6, the adjustment The bolt head of bolt 801 be multi-diameter shaft, multi-diameter shaft the shaft shoulder press in installation 1053 bottom end face of duct on, the adjustment bolt 801 bolt head lower end surface, which is equipped with, protrudes into the flat recess rotated to it convenient for screwdriver.

As shown in Figure 3,4, in order to prevent inner shaft from relative to sleeve body rotation but can opposite sleeve body move axially, the axis The outer circle of body 104 is tightly fixed in the medium pore for being mounted on rotor core 103, and the upper section of the inner shaft 105 is coaxially arranged In in sleeve body 104, the inner shaft 105 is equipped with axially distributed keyway 1052, the sleeve body 104 and inner shaft 105 it Between be also equipped with guide pin 106, one end of the guide pin 106 is fixedly installed on sleeve body 104, the guide pin 106 it is another One end width and 1052 width of keyway match and are slidably connected in keyway 1052, to prevent inner shaft 105 from opposite axle sleeve The rotation of body 104 but the opposite axial movement of sleeve body 104 of energy.

As shown in Figure 1, 2, 3, described for install screw tap or the connecting component of screw die to include collet 901 and chuck nut 902, be equipped with the internal taper hole for being used to connect with collet 901 in the middle part of 105 lower end of inner shaft, 105 lower end periphery of inner shaft be equipped with for and folder The external screw thread that head nut 902 connects.

The working principle of the utility model are as follows: before booting, tapping depth setting screws 305, shutdown are first adjusted into screw 307, idle stroke adjusting nut 702, idle stroke fastening screw nut 703 are adjusted to required position.It, can when if it is adaptive tapping Gear support base 403 is adjusted to drive train of reduction gears rotation and input gap bridge long tooth by center of rotation of the center of output gear 401 Wheel 402 is disengaged, and input gap bridge spool gear 402 is locked using baffle, is able to rotate main nut 202 not.If it is same When walking tapping, baffle is removed, the locking to input gap bridge spool gear 402 is released, more finishes changing the replaceable gear of suitable gear 407, then by adjustable gear support base 403 using the center of output gear 401 as center of rotation drive train of reduction gears rotation with Input gap bridge spool gear 402 is engaged.

Adaptive tapping:

Air cylinder device 5 acts first, drives piston component 502, cylinder rod 503, idle stroke regulating mechanism 7, main nut peace Dress seat 204, main nut 202, driving screw 201, inner shaft 105, collet, 901, chuck nut 902 and screw tap or screw die are quickly downward Movement, when idle stroke adjusting nut 702 encounters 501 upper surface of cylinder body, idle stroke terminates, and screw die or screw tap are located at this time Home on workpiece surface.Then, electric machine assembly 1 is powered, and the sleeve body 104 being fixedly connected with rotor core 103 drives Inner shaft 105, driving screw 201, collet, 901, the rotating forward synchronous with screw tap or screw die of chuck nut 902.Since main nut 202 is fixed Motionless, for each revolution, inner shaft 105 and driving screw 201 are with regard to 201 spiral shell of a tooth driving screw that advances for the rotor core 103 of electric machine assembly 1 Away from distance.After ining succession screw tap that inner shaft 105 is rotationally advancing or screw die touches workpiece, tapping forward speed is by screw tap or plate The screw pitch of tooth itself controls, since the forward travel distance that driving screw 201 is generated relative to main nut 202 for each revolution is intrinsic , so, inner shaft 105 becomes one tooth screw tap of advance to driving screw 201 for each revolution or the distance of screw die screw pitch enters working line Journey, in the case where 201 screw pitch of driving screw is greater than screw tap or screw die screw pitch, one tooth of every advance, inner shaft 105 all overcomes screw pitch to adapt to The elastic force of spring 6 carry out upwards it is axially adjustable come compensate the range difference away from.(it is equal to screw tap or screw die spiral shell in 201 screw pitch of driving screw It is synchronous tapping away from the case where, changes and retreat problem there is no 105 forward speed of inner shaft.)

When the tapping depth setting screws 305 on the range-adjustable support base 303 that downlink is advanced together encounter commutation stroke When switch 306, tapping impulse stroke in place, is inverted, screw tap or screw die have been produced along workpiece by the electric machine assembly 1 of outer electrical equipment control Raw screw thread exits workpiece, meanwhile, screw pitch adapts to synchronous initial position inner shaft 5 being pushed into relative to driving screw 201 of spring 6. It can be sensed when the shutdown adjusting screw 307 on the range-adjustable support base 303 risen together rises to shutdown close to switch 308 Position when, electric machine assembly 1 shut down.Similarly, after screw tap or screw die exit workpiece, air cylinder device 5 is acted, and presses initial idle stroke The speed of advance retreats, and after retreating in place, a duty cycle is completed.

Synchronous tapping:

Air cylinder device 5 acts first, drives piston component 502, cylinder rod 503, idle stroke regulating mechanism 7, main nut peace Dress seat 204, main nut 202, driving screw 201, inner shaft 105, collet, 901, chuck nut 902 and screw tap or screw die are quickly downward Movement, when idle stroke adjusting nut 702 encounters 501 upper surface of cylinder body, idle stroke terminates, and screw die or screw tap are located at this time Home on workpiece surface.Then, electric machine assembly 1 is powered, and the sleeve body 104 being fixedly connected with rotor core 103 drives Inner shaft 105, driving screw 201, collet, 901, the rotating forward synchronous with screw tap or screw die of chuck nut 902.Sleeve body 104 drives simultaneously The output gear 401 that is coaxially arranged rotates, output gear 401 pass sequentially through output carrier gear 405, fixed gear 406, can More gear changing 407, input gap bridge spool gear 402 drive main nut 202 to rotate in same direction with driving screw 201.When ining succession, inner shaft 105 is revolved After the screw tap or screw die for turning advance touch workpiece, tapping forward speed is controlled by the screw pitch of screw tap or screw die itself, due to each The number of teeth of a gear has been subjected to stringent calculating, so that advanced distance is enclosed in the rotation of driving screw 201 one is equal to screw tap or screw die The advanced distance of one circle of rotation, changes there is no 105 forward speed of inner shaft and retreats problem.

When the tapping depth setting screws 305 on the range-adjustable support base 303 that downlink is advanced together encounter commutation stroke When switch 306, tapping impulse stroke in place, is inverted, screw tap or screw die have been produced along workpiece by the electric machine assembly 1 of outer electrical equipment control Raw screw thread exits workpiece.It is connect when the shutdown adjusting screw 307 on the range-adjustable support base 303 risen together rises to shutdown When the position that nearly switch 308 can sense, electric machine assembly 1 is shut down.Similarly, after screw tap or screw die exit workpiece, air cylinder device 5 is dynamic Make, and retreated by the speed that initial idle stroke is advanced, after retreating in place, a duty cycle is completed.

Above-mentioned specific embodiment is only explained in detail the technical solution of the utility model, and the utility model is not It is only limited only to above-described embodiment, all any improvement or replacement according to the utility model principle should all be practical new at this Within the protection scope of type.

Claims (10)

1. a kind of automatic tapping machine for having both adaptive tapping with synchronous tapping, it is characterised in that: including electric machine assembly (1), institute Stating electric machine assembly (1) includes for the shell (101) of connection is fixedly mounted with external rack, is fixed in shell (101) and determines Sub (102), the rotor core (103) being movably set in the middle part of stator (102) and the electricity being set in the middle part of rotor core (103) Owner's axis；The electric machine main shaft is by the sleeve body (104) being coaxially fixedly installed in rotor core (103) medium pore and coaxial work Dynamic to be sheathed on sleeve body (104) intracorporal inner shaft (105) composition, the both ends of the sleeve body (104) are rotationally connected with shell (101) on, the inner shaft (105) cannot rotate relative to sleeve body (104) but sleeve body (104) can move axially relatively, inner shaft (105) lower end is provided with the connecting component for installing screw tap or screw die；

The automatic tapping machine further includes for driving inner shaft (105) flexible screw-and-nut mechanism (2) for carrying out tapping, using In control tapping depth and tapping after the completion of electric machine assembly shut down travel switch component (3), be connected to sleeve body (104) and spiral shell Being cut between adaptive tapping state and synchronous tapping state for controlling automatic tapping machine between screw-and-nut mechanism (2) The switching device (4) changed and the air cylinder device (5) for driving inner shaft (105) fast advance and retreat in idle stroke；

The screw-and-nut mechanism (2) includes driving screw (201), main nut (202), guide rod (203), main nut mounting base (204), bottom plate (205) and upper mounted plate (206)；The bottom plate (205) is fixedly arranged on shell (101) upper end, institute The quantity of guide rod (203) is stated to be respectively perpendicular for more than two and guide rod (203) both ends and be fixedly arranged on bottom plate (205) and upper fixation On plate (206), the main nut (202) is rotationally connected in main nut mounting base (204), the main nut mounting base (204) Be slidably connected on guide rod (203) and can drive main nut (202) between bottom plate (205) and upper mounted plate (206) on Lower movement, the lower end of the driving screw (201) are optical axis and, the driving screw (201) coaxially connected with the upper end of inner shaft (105) It cannot rotate but inner shaft (105) can be moved axially relatively relative to inner shaft (105), the upper end of the driving screw (201) is equipped with and master The screw thread that nut (202) internal perisporium matches, the upper end of the driving screw (201) and main nut (202) screw thread screw up pairing and connect Connect and the screw pitch of main nut (202) and driving screw (201) screw thread be greater than or equal to screw tap or screw die to be mounted screw pitch；

The automatic tapping machine further includes being set between inner shaft (105) and driving screw (201) to be used in tapping in compensation The installed screw tap of axis (105) or screw die and driving screw (201) because screw pitch difference move forward or back caused by range difference screw pitch It adapts to spring (6)；

The switching device (4) is set between bottom plate (205) and upper mounted plate (206), and the switching device (4) includes The coaxial output gear (401) being fixedly arranged on sleeve body (104) upper end is rotationally connected with bottom plate (205) and upper mounted plate (206) input gap bridge spool gear (402) between is connected between output gear (401) and input gap bridge spool gear (402) Train of reduction gears and one end are rotationally connected with the adjustable gear support for installing train of reduction gears on bottom plate (205) Seat (403), the adjustable gear support base (403) can drive reduction gearing by center of rotation of the center of output gear (401) Group rotation is engaged with input gap bridge spool gear (402) or is disengaged with input gap bridge spool gear (402), the main nut (202) periphery be equipped with input gap bridge spool gear (402) gear teeth that are meshed, the switching device (4) further includes for can Gear support base (403) are adjusted the position fixing apparatus of fixedly adjustable gear support base (403) position and to be used for when being adjusted in place The limit of limitation input gap bridge spool gear (402) rotation when train of reduction gears is disengaged with input gap bridge spool gear (402) Device (404).

2. the automatic tapping machine according to claim 1 for having both adaptive tapping with synchronous tapping, it is characterised in that: described Train of reduction gears includes being rotationally connected on adjustable gear support base (403) lower end surface and being meshed with output gear (401) Output carrier gear (405), be rotationally connected on adjustable gear support base (403) lower end surface and with output carrier gear (405) It the fixed gear (406) that is meshed and is set on adjustable gear support base (403) upper surface and coaxial solid with fixed gear (406) If replaceable gear (407), the adjustable gear support base (403) rotate when can drive replaceable gear (407) and input Gap bridge spool gear (402) lower end is engaged or is disengaged with input gap bridge spool gear (402) lower end.

3. the automatic tapping machine according to claim 2 for having both adaptive tapping with synchronous tapping, it is characterised in that: described Travel switch component (3) include one end be rotationally connected on upper mounted plate (206) and can with adjustable gear support base (403) one The upper movable supporting plate (301) of rotation, both ends are respectively perpendicular and are fixedly arranged on movable supporting plate (301) lower end surface and adjustable gear branch Guide post (302), the range-adjustable support base (303) that is slidably connected on guide post (302) on support seat (403) upper surface and under End, which is fixedly and coaxially connected, is rotationally connected with the driving on upper movable supporting plate (301) in output carrier gear (405) and upper end Stud (304), the driving stud (304) are threadedly coupled with range-adjustable support base (303) to drive range-adjustable support base (303) it moves up and down, the travel switch component (3) further includes the tapping being threadedly connected on range-adjustable support base (303) Depth setting screws (305) are installed on adjustable gear support base (403) and position and tapping depth setting screws (305) phase Corresponding commutation travel switch (306), the shutdown being threadedly connected on range-adjustable support base (303) adjust screw (307) with And it is installed on movable supporting plate (301) and the close switch (308) of position shutdown corresponding with adjusting screw (307) is shut down, The tapping depth setting screws (305) can start electric machine assembly (1) when touching commutation travel switch (306) and reversely revolve Turn, described shut down close to switch (308) is sensing that the power supply that can control electric machine assembly (1) when shutting down and adjusting screw (307) is disconnected It opens.

4. the automatic tapping machine according to claim 1 for having both adaptive tapping with synchronous tapping, it is characterised in that: described Limiting device (404) is the baffle being set on bottom plate (205), and the baffle can be into and out input gap bridge spool gear (402) to limit or not limit input gap bridge spool gear (402) rotation in tooth socket.

5. the automatic tapping machine according to claim 1 for having both adaptive tapping with synchronous tapping, it is characterised in that: described Air cylinder device (5) includes the cylinder body (501) being fixedly arranged on upper mounted plate (206), is slidably connected in cylinder body (501) Piston component (502), upper end be fixedly connected with piston component (502) and lower end stretches out cylinder ontology (501) outside and main nut The cylinder rod (503) that mounting base (204) is fixedly connected, the cylinder rod (503) is interior to be coaxially provided with for accommodating driving screw (201) The accommodating cavity (5031) of upper end.

6. the automatic tapping machine according to claim 5 for having both adaptive tapping with synchronous tapping, it is characterised in that: described Automatic tapping machine further includes the idle stroke regulating mechanism (7) being set on air cylinder device (5), the idle stroke regulating mechanism (7) It is fixedly connected including lower end with piston component (502) and upper end is placed on the idle stroke of cylinder body (501) outside and adjusts cylinder rod (701), idle stroke adjusting nut (702) and idle stroke and tight spiral shell that idle stroke adjusts cylinder rod (701) upper end are threadedly connected to Female (703), the lower end surface of the idle stroke fastening screw nut (703) holds out against the upper surface of idle stroke adjusting nut (702).

7. the automatic tapping machine according to claim 1 for having both adaptive tapping with synchronous tapping, it is characterised in that: described The installation duct (1053) that diameter and driving screw (201) lower end optical axis match, the driving screw are coaxially provided in inner shaft (105) (201) lower end optical axis is movably set in installation duct (1053), and inner shaft (105) top is equipped with axially distributed elongated slot Hole (1051) is installed with the pin that diameter and long slot hole (1051) width match on the optical axis of driving screw (201) lower end (207), the pin (207), which is snug fit in long slot hole (1051), turn driving screw (201) cannot with respect to inner shaft (105) It moves but inner shaft (105) can move axially relatively, screw pitch adaptation spring (6), which is set to install in duct (1053) and compress, to be made For installing between duct (1053) bottom end face and driving screw (201) lower end surface.

8. the automatic tapping machine according to claim 7 for having both adaptive tapping with synchronous tapping, it is characterised in that: described Automatic tapping machine further includes being set between installation duct (1053) bottom end face and screw pitch adaptation spring (6) to be used to adjust spiral shell Preload away from the pretightning force for adapting to spring (6) adjusts device (8), and preload adjustment device (8) includes being set to installation duct (1053) it the adjustment bolt on bottom end face (801) and is threadedly connected on adjustment bolt (801) and upper surface and screw pitch are suitable The lifting nut (802) for answering spring (6) lower end to be fixedly connected, the adjustment bolt (801) can drive lifting nut when rotating (802) to adjust the pretightning force that screw pitch adapts to spring (6), the bolt head of the adjustment bolt (801) is multi-diameter shaft for oscilaltion, Multi-diameter shaft the shaft shoulder press in installation duct (1053) bottom end face on, on the bolt head lower end surface of the adjustment bolt (801) Equipped with protruding into the flat recess rotated to it convenient for screwdriver.

9. the automatic tapping machine according to claim 1 for having both adaptive tapping with synchronous tapping, it is characterised in that: described The outer circle of sleeve body (104) is tightly fixed in the medium pore for being mounted on rotor core (103), the upper section of the inner shaft (105) Coaxial sleeve is set in sleeve body (104), and the inner shaft (105) is equipped with axially distributed keyway (1052), the sleeve body (104) it is also equipped between inner shaft (105) guide pin (106), one end of the guide pin (106) is fixedly installed in sleeve body (104) on, the other end width and keyway (1052) width of the guide pin (106) match and are slidably connected to keyway (1052) in, to make inner shaft (105) that cannot rotate but sleeve body (104) can be moved axially relatively relative to sleeve body (104).

10. the automatic tapping machine according to claim 1 for having both adaptive tapping with synchronous tapping, it is characterised in that: institute Stating the connecting component for installing screw tap or screw die includes collet (901) and chuck nut (902), inner shaft (105) lower end middle part Equipped with the internal taper hole for being used to connect with collet (901), inner shaft (105) lower end periphery, which is equipped with, to be used to connect with chuck nut (902) External screw thread.