CN203330764U - Servo feed tapping power head device - Google Patents

Abstract

The utility model relates to a servo feed tapping power head device and belongs to the technical field of tapping tools. The servo feed tapping power head device comprises a transmission control box, a transmission case, a spline shaft, a spline shaft driving mechanism and a workpiece tapping mechanism, wherein a spline shaft sleeve is arranged on the spline shaft in a matching mode. The servo feed tapping power head device is characterized in that the servo feed tapping power head device further comprises a stroke control mechanism and a transition transmission mechanism. The stroke control mechanism is arranged in a cavity of the transmission control box, the transition transmission mechanism is arranged on the transmission case, and the spline shaft driving mechanism is a servo motor driving type driving mechanism. The servo motor driving type spline shaft driving mechanism is adopted, auxiliary facilities for providing compressed air are removed, the tapping quality of workpieces is ensured, tapping tools are protected, the servo feed tapping power head device is small in noise, improves the environment of a working place, is needless for manual cumbersome adjustment and has excellent automated control effects, power does not need to be distributed for the stroke control mechanism independently, and good energy-saving effects are embodied.

Description

Servo feed tapper unit device

Technical field

The utility model belongs to the tapping tool technical field, is specifically related to a kind of servo feed tapper unit device, supporting on tapper or similar equipment, and metal works is processed to required screwed hole.

Background technology

Technical information about the tapper unit device can be seen in disclosed Chinese patent literature, " a kind of self-tapping power head mechanism " typically recommended as Granted publication CN201350535Y, this patent scheme is installed cylinder and be connected with cylinder piston rod and parallel with rotary main shaft push rod on support, although this patent can embody the technique effect of the 2nd section record of its Instructions Page 2, but because it belongs to pneumatic type tapper unit device category, so-called pneumatic type tapper unit device refers to that the displacement of piston rod controlled by cylinder piston rod, that is to say by pneumatic control processing stroke (advance or retreat), one of thereby the shortcoming of pneumatic feeding tapper unit device, due to the power source that uses compressed air as piston rod movement, thereby must provide for example device of air compressor or air pump and so on of compressed air source unit, cause pneumatic feeding tapper unit device only just to be able to work relying under the state that auxiliary equipment is air compressor machine etc., two, because the processing stroke for example advances, be by pneumatic realization, therefore pace must be regulated by hydraulic damper, yet the non-linear meeting of the unstability of gas and hydraulic damping causes the unstable of tapping process, not only easily affect the tapping precision, and can undermine the service life of tapping tool as tapping-head, three, because relying on the collision of hydraulic damper, needs realize the switching between advancing of F.F. and work, thereby the noise added while being tapping man-hour is larger, especially when production scene is equipped with many pneumatic type tapper unit devices, noise is larger, thereby affects the environment (noise pollution) of operation field, they are four years old, owing to being difficult to accomplish the accuracy controlling to stroke (F.F. stroke and work are carried out journey) in process even at all, therefore must be by loaded down with trivial details and complicated machinery adjustment, and this loaded down with trivial details and complicated machinery adjustment affects operating efficiency on the one hand, increase on the other hand operator's working strength, especially machinery adjustment is carried out with manual mode by the operator, and the precision that manual mode is adjusted is due to factor analysis such as the experience with the operator, sense of responsibility and moods, the precision of therefore adjusting objectively is difficult to ensure, its five, due to control model limitation, thereby be difficult to be controlled by programmable controller (PLC).

In view of above-mentioned prior art, be necessary rational modification in addition, the applicant has done positive and useful design for this reason, finally formed technical scheme described below, and taking to have carried out contrast test in the applicant plant area and pneumatic type tapper unit device under strict secrecy provision, result has shockingly shown good technique effect.

Summary of the invention

Task of the present utility model be to provide a kind of contribute to abandon using compressed air and use as power source and break away from the auxiliary equipment relied on such as air compressor, be conducive to embody good tapping precision and protection tapping tool and use and ensure the workpiece quality be threaded and the service life that extends tapping tool, be of value to noise decrease and use the noise pollution of avoiding the operation place, have and be convenient to avoid being subject to artificially to adjust the impact of factor and use the accurate control of guaranteeing stroke, have and be good at realizing that PLC controls and uses the good automation effect of embodiment and use with being conducive to save power consumption the servo feed tapper unit device that the energy-conservation spirit of the economizing type of advocating with the current whole society matches.

Task of the present utility model completes like this, a kind of servo feed tapper unit device, comprise and form the transmission control cabinet that transmission control cabinet chamber is arranged, be fixed on the transmission control cabinet top and form the transmission case that the transmission case chamber is arranged, upper end is stretched over Nei Er lower end, transmission case chamber and is being stretched over the splined shaft outside the transmission control cabinet after the transmission control cabinet, be arranged on transmission case and splined shaft driving mechanism that be in transmission connection with the described upper end of splined shaft in the transmission case chamber and with the described lower end of splined shaft, be connected for the work-piece tapping mechanism to work-piece tapping, wherein: be equipped with a hub splines on splined shaft, be characterised in that also including one passes to the transition transmission mechanism of range controlling mechanism for the range controlling mechanism that orders about described work-piece tapping mechanism upstream or downstream and for the driving force by described splined shaft driving mechanism, range controlling mechanism is arranged in the transmission control cabinet chamber of described transmission control cabinet, and with described hub splines, be connected in transmission control cabinet chamber, the transition transmission mechanism is arranged on described transmission case, and this transition transmission mechanism is in transmission connection with described splined shaft driving mechanism in described transmission case chamber, and with described range controlling mechanism, be in transmission connection outside the transmission case chamber, described splined shaft driving mechanism is driven by servomotor formula driving mechanism.

In a specific embodiment of the present utility model, form a screw gear chamber is arranged at the top of described transmission control cabinet, and offer a leading screw bearing bore on the diapire in screw gear chamber, described range controlling mechanism comprises leading screw, screw gear, sliding shoe, the signal picker installing rack, first signal collector and secondary signal collector, the upper end of leading screw is rotatably assorted by leading screw upper bearing (metal) and leading screw bearing bore, and be stretched in the screw gear chamber, the lower end of leading screw is bearing on the chamber diapire in described transmission control cabinet chamber rotationally by the leading screw lower bearing, screw gear is fixed in the described upper end of leading screw in the screw gear chamber, one end of sliding shoe is nested with on the described hub splines on described splined shaft, and be fixedly connected with hub splines, and the other end of sliding shoe coordinates with lead screw transmission by ball nut, being fixed with a signal picker on this sliding shoe rams, the signal picker installing rack is fixed in described transmission control cabinet chamber, the first signal collector is fixed on the upper end of signal picker installing rack, the secondary signal collector is fixed on the lower end of signal picker installing rack, and corresponding with the first signal collector, described signal picker is ramed and first signal collector and corresponding with the secondary signal collector, the described transition transmission mechanism and the described screw gear that with described splined shaft driving mechanism, are in transmission connection are in transmission connection, the top of described transmission case is provided with one for the transmission-case cover protected is covered in described transmission case chamber.

In another specific embodiment of the present utility model, offer a first signal collector adjustment tank in the described upper end of described signal picker installing rack, and lower end offers a secondary signal collector adjustment tank, described first signal collector is fixed in the position corresponding to first signal collector adjustment tank and signal picker installing rack, and described secondary signal collector is fixed in the position corresponding to secondary signal collector adjustment tank and signal picker installing rack.

In another specific embodiment of the present utility model, described first signal collector and secondary signal collector are travel switch, microswitch, position approach switch, tongue tube or hall sensing element.

In another specific embodiment of the present utility model, described transition transmission mechanism comprises the transition power transmission shaft, First Transition gear and the second transition gear, the middle part of transition power transmission shaft is bearing on transition transmission shafts bearing rotationally, transition transmission shafts bearing is arranged on bearing fixed seat, and bearing fixed seat directly is formed in the bottom in the transmission case chamber of described transmission case, the upper end of transition power transmission shaft is stretched in the transmission case chamber, lower end is bearing in rotationally on the chamber diapire in transmission case chamber and is stretched over outside the transmission case chamber by the transition transmission shaft bearing, the First Transition gear is fixed on the upper end of transition power transmission shaft, and be in transmission connection with described splined shaft driving mechanism, the second transition gear is fixed on the described lower end of transition power transmission shaft, and be meshed with described screw gear, described splined shaft and described leading screw are vertically parallel.

Also has a specific embodiment of the present utility model, be fixed with pair of guide rails with vertical parallel state on the chamber wall in described transmission control cabinet chamber and in the position of a side of the length direction corresponding to described sliding shoe, and in a side of the described length direction of sliding shoe and be fixed with a guide wheel shaft in the position corresponding between pair of guide rails, be provided with rotationally a guide wheel on this guide wheel shaft, this guide wheel is placed between pair of guide rails and with pair of guide rails and rolls and coordinate.

More of the present utility model and in specific embodiment, described splined shaft driving mechanism comprises servomotor, the first drive, driving-belt, the second drive, spline shaft gear and carrier gear, servomotor is fixed on the bottom of described transmission case with cantilever position, the servo motor shaft of this servomotor probes in the transmission case chamber of described transmission case, the first drive is fixed on servo motor shaft, one end of driving-belt is nested with on the first drive, the other end is nested with on the second drive, the second drive and spline shaft gear are fixed on described splined shaft jointly, and spline shaft gear is positioned at the top of the second drive, carrier gear is nested with on bridge gear shaft, and this carrier gear is meshed with described spline shaft gear and First Transition gear simultaneously, described bridge gear shaft is fixed on carrier gear axial adjustment plate, and this carrier gear axial adjustment plate is fixed on the chamber wall in transmission case chamber.

In of the present utility model and then specific embodiment, be fixed with an adjustment panel seat on the described chamber wall in the transmission case chamber of described transmission case, offer on described carrier gear axial adjustment plate and adjust the plate adjustment tank, carrier gear axial adjustment plate is fixed with the adjustment panel seat in the position corresponding to adjusting the plate adjustment tank by adjusting the plate hold-down screw.

Of the present utility model again more and in specific embodiment, form a threaded connector is arranged in the bottom of described transmission control cabinet and in the position corresponding to described hub splines, be fixed with an outer tube with cantilever position on this threaded connector, this outer tube has an overcoat tube chamber, the lower end of hub splines is stretched in this overcoat tube chamber, and forming has a diameter to be greater than the axle sleeve connector of the diameter of hub splines, be extended with the inner sleeve connector that a diameter is less than the diameter of axle sleeve connector in the bottom of this axle sleeve connector, the inner sleeve connector is stretched out in the lower end of described splined shaft, the described lower end of described work-piece tapping mechanism and splined shaft is in transmission connection.

In again of the present utility model and then specific embodiment, described work-piece tapping mechanism comprises inner sleeve, the splined shaft cover that is in transmission connection, cutter spindle, slip cap, the push broach nut, sealing ring, broach shell and spring, inner sleeve is positioned at described overcoat tube chamber, the upper end of this inner sleeve is threaded with described inner sleeve connector with the vertical cantilever state, splined shaft is in transmission connection and is nested with the described lower end at described splined shaft, and this splined shaft be in transmission connection the cover upper end with the spline drived on splined shaft, coordinate, the upper end of cutter spindle is bearing on the cutter spindle upper bearing (metal) rotationally, and leaning out the be in transmission connection lower end of cover of cutter spindle upper bearing (metal) and described splined shaft is threaded, the lower end of cutter spindle is bearing on the cutter spindle lower bearing rotationally, cutter spindle upper bearing (metal) and cutter spindle lower bearing are arranged in the internal canula lumen of inner sleeve, and be provided with one for the upper bearing (metal) positioning spacer to the restriction of cutter spindle upper bearing (metal) between the end face of cutter spindle upper bearing (metal) and described inner sleeve connector, and on cutter spindle, be provided with one between lower bearing for to cutter spindle, the lower bearing positioning spacer that lower bearing limits simultaneously, wherein: the axial central authorities of cutter spindle form a spline axocoel, the lower end of described splined shaft is insinuated into the spline axocoel, outer tube internal thread screw thread on the inwall of the lower end of slip cap and described outer tube connects, the outer wall of described inner sleeve and this slip cap are slidably matched, the push broach nut is positioned at internal canula lumen, and fix with the lower end of internal canula lumen, described cutter spindle lower bearing is bearing on the push broach nut, sealing ring is nested with the lower end at inner sleeve, and fix with inner sleeve, broach shell is connected with the lower end of cutter spindle, spring is arranged in the spring cavity of upper end of broach shell.

The technical scheme that the utility model provides is with respect to one of technique effect of prior art, due to the splined shaft driving mechanism that has adopted the driven by servomotor formula, thereby abandoned and usings compressed air as power source, saved compressed-air actuated auxiliary equipment is provided; Two, because can carrying out journey to the F.F. stroke of range controlling mechanism and work by the transition transmission mechanism, the splined shaft driving mechanism of driven by servomotor formula accurately controls, thereby not only can ensure the Tapping Quality to workpiece, and can effectively protect tapping tool; Three, due to without using compressed air as power source, thereby there is the strong point that noise is little, can significantly improve the environment of workplace; Four, because the splined shaft driving mechanism of driven by servomotor formula can automatically accurately be controlled the stroke of work-piece tapping mechanism, thereby without artificial loaded down with trivial details adjustment; Five, due to can with the Programmable Controller control connection, thereby there is excellent automation and control effect; Six, due to by the transition transmission mechanism by the transmission of power of splined shaft driving mechanism to range controlling mechanism, thereby without being separately range controlling mechanism outfit power, thereby can embody good energy-saving effect.

The accompanying drawing explanation

Fig. 1 is example structure figure of the present utility model.

The cutaway view that Fig. 2 is Fig. 1.

The drive state schematic diagram that Fig. 3 is transition transmission mechanism of the present utility model and range controlling mechanism.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but the description to embodiment is not all the restriction to the utility model scheme, any according to the utility model design, done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Please be referring to Fig. 1 and Fig. 2, following description is all to be related to the directionality of upper and lower, left and right, front side and rear side and so on or claims that the directionality concept is all according to the location status of Fig. 1, therefore can not be according to this and restriction the utility model.Provided a transmission control cabinet 1, this transmission control cabinet 1 has a transmission control cabinet chamber 11, on the wall of chamber, 11 front side, transmission control cabinet chamber with each other vertically parallel state form pair of guide rails 11 arranged, certainly, this pair of guide rails 11 also can be used one piece of guide-rail plate instead, and offers slip guide block groove (below also will further illustrate) on guide-rail plate.A side (right side) at the top of transmission control cabinet 1 forms a screw gear chamber 12, and offers a leading screw bearing bore 121 communicated with transmission control cabinet chamber 11 on this 12 chamber, screw gear chamber diapire.On the outer wall of the bottom of transmission control cabinet 1, be to be extended with a threaded connector 13 on exterior bottom wall, on this threaded connector 13 with the vertical cantilever state outer tube 131 that has been threaded, this outer tube 131 forms has one from an end, to connect and connect the overcoat tube chamber 1311 to lower end to Ji Zi upper end, outer end, that is to say that the two ends of the overcoat tube chamber 1311 of outer tube 131 are not sealed.Also show in the drawings the outer tube internal thread 1312 of the lower end that is formed in overcoat tube chamber 1311.

Provided a transmission case 2, this transmission case 2 adopts one group of transmission case hold-down screw 23 fixing with one group of transmission case fixing screw hole 14 at the top that is preset in aforementioned transmission control cabinet 1.In the transmission case chamber 21 of transmission case 2, interior formation has at least one transmission-case cover fixed leg 212, end at this transmission-case cover fixed leg 212 is to be provided with a cylinder screw hole 2121 on the end face of top, when illustrated, for after transmission case chamber 21 is covered protecting transmission-case cover 22 lid and be placed in the upper opening position of transmission case 2, with case lid hold-down screw 22(Fig. 2, show) with cylinder screw hole 2121, fix.As shown in Figure 1, on the wall of the rear side chamber in transmission case chamber 21, be fixed with or one forms an adjustment panel seat 211 is arranged.

Preferably, set a guard shield 16 in the position of the case chamber of aforesaid transmission control cabinet 1 accent.

Provided a splined shaft 3, the upper end of this splined shaft 3 is stretched in transmission case chamber 21 from the bottom of transmission case 2, and form one first flat key 32 and one second flat key 33 are arranged in the upper end of this splined shaft 3, and its effect of block plate restriction screw hole 34(that offers on the end face of the upper end of splined shaft 3 will be explained below).The lower end of splined shaft 3 is in transit to be stretched over outside transmission control cabinet chamber 11 after aforesaid transmission control cabinet 1, and be in transmission connection with the following work-piece tapping mechanism 5 that also will describe, be equipped with a hub splines 31 on splined shaft 3, the upper end of this hub splines 31 is connected with the following range controlling mechanism that also will describe in detail 6 in transmission control cabinet chamber 11, and the lower end of hub splines 31 is stretched over outside transmission control cabinet chamber 11, and forming has a diameter significantly to be greater than the axle sleeve connector 311 of the diameter of hub splines 31, be extended with the inner sleeve connector 3111 that a diameter significantly is less than the diameter of axle sleeve connector 311 below this axle sleeve connector 311, be processed with inner sleeve connector external screw thread 31111 on the outer wall of this inner sleeve connector 3111.Shown in Fig. 1 and Fig. 2, the nearly middle part of splined shaft 3 is bearing on transmission control cabinet 1 rotationally by a pair of splined shaft bearing 36.

Preferably, on aforesaid threaded connector 13, a sheathed buffer gasket 132, play the cushioning effect to aforesaid axle sleeve connector 311 by this buffer gasket 132.

Still see Fig. 1 and Fig. 2, provided the splined shaft driving mechanism 4 of a driven by servomotor formula, the splined shaft driving mechanism 4 of this driven by servomotor formula preferably but not the structure definitely be limited to is as follows: comprise servomotor 41, the first drive 42, driving-belt 43, the second drive 44, spline shaft gear 45 and carrier gear 46, the servomotor of servomotor 41 for thering is the rotating function, be fixed on the bottom of aforementioned transmission case 2 with cantilever position with one group of motor hold-down screw 412, and the servo motor shaft 411 of this servomotor 41 probes in aforesaid transmission case chamber 21, form motor shaft flat key 4111 is arranged on this servo motor shaft 411, and be designed with a platen screw hole 4112 on the end face of the top of servo motor shaft 411.The first drive 42 is fixed on servo motor shaft 411, fixing with aforesaid motor shaft flat key 4111, and escape in servo motor shaft 411 in order to prevent the first drive 42, therefore after the first drive 42 and motor shaft flat key 4111 are fixing, fixing with platen screw hole 4112 by platen screw 4211 with platen 421 again, thus by 421 pairs of the first drives 42 of platen, limited.One end of driving-belt 43 is nested with on the first drive 42, and the other end is nested with on the second drive 44.The second drive 44 and spline shaft gear 45 jointly are fixed on the upper end of aforementioned splined shaft 3, and spline shaft gear 45 is positioned at the top of the second drive 44.Shown in figure, the second drive 44 is fixing with aforesaid the first flat key 32, preferably, limit 35 pairs of the second drives 44 restrictions of nut by the drive screwed on splined shaft 3, and spline shaft gear 45 is fixing with aforesaid the second flat key 33, for spline shaft gear 45 is stopped, avoid spline shaft gear 45 to escape in splined shaft 3, therefore limit screw hole 34 by block plate 451 by block plate screw 4511 and aforesaid block plate fixing, thereby limited by 451 pairs of spline shaft gears 45 of block plate.Carrier gear 46 also can be described as transition gear, this carrier gear 46 is nested with rotationally on bridge gear shaft 461, and bridge gear shaft 461 is fixed on carrier gear axial adjustment plate 4611, this carrier gear axial adjustment plate 4611 is fixed on aforesaid adjustment panel seat 211.Shown in figure, carrier gear 46 both was meshed with aforesaid spline bearing gear 45, coordinated or claim with following transition transmission mechanism 7 transmissions that also will describe in detail again to be in transmission connection, and particularly, with the First Transition gear 72 of transition transmission mechanism 7, was meshed.

In the present embodiment, aforesaid first, second drive 42,44 is synchronous pulley, driving-belt 43 is Timing Belt, yet, if replace synchronous pulley and correspondingly Timing Belt changed into to common driving belt with common belt pulley, should be considered as so being equal to and replace and still belong to the disclosed technology contents category of the utility model.

Preferably, at the end (illustrated upper end) of aforesaid bridge gear shaft 461, design a jump-ring slot 4612, a jump ring 46121 for aforementioned carrier gear 46 is limited is set on this jump-ring slot 4612.

In order to ensure the engagement effect between carrier gear 46 and aforesaid spline shaft gear 45 and First Transition gear 72, therefore offer a pair of adjustment plate adjustment tank 46111 on aforesaid carrier gear axial adjustment plate 4611, in the position corresponding to adjusting plate adjustment tank 46111, that carrier gear axial adjustment plate 4611 is fixing with aforesaid adjustment panel seat 211 with a pair of adjustment plate hold-down screw 46112, that is to say, by the position adjustment realization of carrier gear axial adjustment plate 4611, the position of carrier gear 46 is adjusted.

Please continue to see Fig. 1 and Fig. 2, provide one stroke controlling organization 6, the trip controlling organization 6 is arranged in the transmission control cabinet chamber 11 of aforesaid transmission control cabinet, and with aforesaid hub splines 31, is connected in transmission control cabinet chamber 11.

Ask for an interview Fig. 3 and in conjunction with Fig. 1 and Fig. 2, aforementioned range controlling mechanism 6 preferably but not the structure definitely be limited to is as follows: comprise leading screw 61, screw gear 62, sliding shoe 63, signal picker installing rack 64, first signal collector 65a and secondary signal collector 65b, the upper end of leading screw 61 is bearing in the top of transmission control cabinet 1 rotationally by being arranged on aforesaid leading screw bearing bore 121 interior a pair of leading screw upper bearing (metal)s 611, and be stretched in screw gear chamber 12, also be designed with thread segment 613(in the upper end of leading screw 61 and also can claim threaded area).The lower end of leading screw 61 is bearing on the diapire of 11 chamber, aforementioned transmission control cabinet chamber rotationally by leading screw lower bearing 612.Screw gear 62 is fixed in the aforementioned upper end of leading screw 6 in screw gear chamber 12, and spacing by the screw gear stop nut 6131 screwed on aforementioned threads section 613.One end of sliding shoe 63 (diagram left end) is nested with on aforementioned hub splines 31, shown in figure, an end formation at this sliding shoe 63 has a clamping ring 634, this clamping ring 634 is nested with on hub splines 31, and fixing with hub splines 31 by clamping ring hold-down screw 6341, the other end of sliding shoe 63 coordinates with leading screw 61 transmissions by ball nut 631, on sliding shoe 63 and the rear side (take shown position as example) that is positioned at sliding shoe 63 be fixed with a signal picker and ram 632.Signal picker installing rack 64 use installing rack screws 643 are fixed on the rear side wall body in transmission control cabinet chamber 11.First signal collector 65a is fixed on the upper end of signal picker installing rack 64, and secondary signal collector 65b is fixed on the lower end of signal picker installing rack 64, and 65a is corresponding with the first signal collector, that is to say first, second signal picker 65a, 65b upper and lower corresponding each other, it is 632 both corresponding with first signal collector 65a, corresponding with secondary signal collector 65b again that aforesaid signal picker is ramed.

Preferably, offer a first signal collector adjustment tank 641 in the upper end of signal picker installing rack 64, and a secondary signal collector adjustment tank 642 is offered in lower end, aforesaid first signal collector 65a fixes with the upper end of screw and signal picker installing rack 64 in the position corresponding to first signal collector adjustment tank 64, and aforesaid secondary signal collector 65b fixes with the lower end of screw and signal picker installing rack 64 in the position corresponding to secondary signal collector adjustment tank 642.

Shown in figure, a side at the length direction of aforesaid sliding shoe 63 is the front side of shown position and is fixed with a guide wheel shaft 633 in the position corresponding between aforesaid pair of guide rails 111, be provided with rotationally a guide wheel 6331 on this guide wheel shaft 633, this guide wheel 6331 is inserted between pair of guide rails 11 and with pair of guide rails 11 and is rolled and coordinate.As aforementioned, if pair of guide rails 11 is used one piece of guide-rail plate instead and offer a slip guide block groove on guide-rail plate, so aforesaid guide wheel shaft 633 and guide wheel 6331 are used a slip guide block instead, by this slip guide block and slip guide block groove, are slidably matched.

Again, for aforesaid a pair of leading screw upper bearing (metal) 611 is limited, therefore cover 122 with one group of bearing cap screw, 1221 fixing bearings in screw gear chamber 12 and in the position corresponding to leading screw upper bearing (metal) 611, specifically bearing cap screw 1221 and the diapire in screw gear chamber 12 are fixed, thus spacing by 122 pairs of leading screw upper bearing (metal)s 611 of bearing cap.Same reason, in the bottom of transmission control cabinet 1 and fix a lower ball cover 15 in the position corresponding to leading screw lower bearing 612 with one group of lower ball cover screw 151, thus spacing by 15 pairs of leading screw lower bearings 612 of lower ball cover.

And; aforesaid first signal collector 65a and secondary signal collector 65b all adopt position approach switch (custom claims approach switch) in the present embodiment; do not use travel switch, microswitch, tongue tube and even hall sensing element yet do not repel; therefore, if approach switch is replaced with to these parts that are not limited to exemplify, should be considered as so not taking off the disclosed technology contents category of the utility model and still obtains the legal protection.

Please still see Fig. 1 and Fig. 3, provided a transition transmission mechanism 7, this transition transmission mechanism 7 is arranged on aforesaid transmission case 2, more precisely be arranged in transmission case chamber 21, and this transition transmission mechanism 7 is meshed with the carrier gear 46 of aforesaid spline driving mechanism 4 in transmission case chamber 21, and is meshed with the screw gear 62 of aforementioned range controlling mechanism 6 in transmission case chamber 21.

Aforementioned transition transmission mechanism 7 preferably but not the structure definitely be limited to is as follows: comprise transition power transmission shaft 71, First Transition gear 72 and the second transition gear 73, the middle part of the length direction of transition power transmission shaft 71 (also can claim short transverse) is bearing in transition turning cylinder bearing block 711(rotationally by needle bearing 713 also can claim the needle bearing seat) on, transition transmission shafts bearing 711 is arranged on bearing fixed seat 7111, and this bearing fixed seat 7111 directly is formed in the bottom (on diapire) in the transmission case chamber 21 of aforementioned transmission case 2, the upper end of transition power transmission shaft 71 is stretched in transmission case chamber 21 and forms a transition gear retainingf key 714, the lower end of transition power transmission shaft 71 is bearing on the diapire of 21 chamber, transmission case chamber rotationally by transition transmission shaft bearing 712, and be stretched over outside transmission case chamber 21.First Transition gear 72 is nested with in the upper end of transition power transmission shaft 71 and is fixing with aforesaid transition gear retainingf key 714, by screwing transition gear in the end, upper end of transition power transmission shaft 71, to limit 715 pairs of First Transition gears 72 of nut spacing above corresponding to this First Transition gear 72, and this First Transition gear 72 is meshed with the carrier gear 46 of aforesaid splined shaft driving mechanism 4.The second transition gear 73 is fixed on the aforementioned lower end of transition power transmission shaft 71, and is meshed with screw gear 62.

Continue again to see Fig. 1 and Fig. 2, provided work-piece tapping of the present utility model mechanism 5, this work-piece tapping mechanism 5 comprises inner sleeve 51, splined shaft is in transmission connection and overlaps 52, cutter spindle 53, slip cap 54, push broach nut 55, sealing ring 56, broach shell 57 and spring 58, inner sleeve 51 forms an internal canula lumen 511, this inner sleeve 51 is positioned at the overcoat tube chamber 1311 of aforementioned outer tube 131, and the upper end of this inner sleeve 51 is threaded with the inner sleeve connector external screw thread 31111 on the outer wall of vertical cantilever state and aforementioned inner sleeve connector 3111, the internal thread that is to say the upper end of inner sleeve 51 is connected with inner sleeve connector external screw thread 31111.Splined shaft is in transmission connection and overlaps the 52 described lower ends that are nested with at aforementioned splined shaft 3, and this splined shaft cover upper end of 52 that is in transmission connection coordinates with the spline drived on splined shaft 3, here the concept that alleged transmission coordinates is: when splined shaft 3 rotation, drive spline drived adapter sleeve 52 by splined shaft 3 and rotate.The upper end of cutter spindle 53 is bearing on cutter spindle upper bearing (metal) 531 rotationally, and lean out after cutter spindle upper bearing (metal) 531 and be stretched over be in transmission connection lower end and the splined shaft of cover 51 of splined shaft and be in transmission connection and overlap 52 lower end and be threaded (Fig. 1 is shown in detail), the lower end of cutter spindle 53 is bearing on cutter spindle lower bearing 532 rotationally.On aforesaid cutter spindle, lower bearing 531, 532(wherein, cutter spindle lower bearing 532 has two) all be positioned at the internal canula lumen 511 of inner sleeve 51, and be provided with a upper bearing (metal) positioning spacer 5311 and a lower bearing positioning spacer 5321 in internal canula lumen 511, upper bearing (metal) positioning spacer 5311 is between the lower end surface and cutter spindle upper bearing (metal) 531 of aforesaid inner sleeve connector 3111, , the upper end of upper bearing (metal) positioning spacer 5311 contacts with the lower end surface of inner sleeve connector 3111, and the lower end abutment of upper bearing (metal) positioning spacer 5311 is on cutter spindle lower bearing 531, lower bearing positioning spacer 5321 is between cutter spindle upper bearing (metal) 531 and cutter spindle lower bearing 532,, the upper end of lower bearing positioning spacer 5321 and cutter spindle upper bearing (metal) 531 are towards an end in contact of cutter spindle lower bearing 532, and the side towards cutter spindle upper bearing (metal) 531 at cutter spindle lower bearing 532 is kept out in the lower end of lower bearing positioning spacer 5321.Hence one can see that, by the synergy of upper and lower bearing positioning spacer 5311,5321, the upper and lower bearing 531,532 of cutter spindle is limited in internal canula lumen 511.Axial central authorities in the upper end of cutter spindle 53 form a spline axocoel 533, and the lower end of aforesaid splined shaft 3 is insinuated in this spline axocoel 533 outside being stretched over hub splines 31.Outer tube internal thread 1312 on the inwall of slip cap 54 and aforementioned outer tube 131 lower ends is threaded, and the inwall of the outer wall of aforesaid inner sleeve 51 and this slip cap 54 is slidably matched.Push broach nut 55 is positioned at internal canula lumen 511, by the push broach nut thread (external screw thread) on it and the inner sleeve screw thread (internal thread) that is formed in inner sleeve 51 lower ends, implements to be threaded, and aforesaid cutter spindle lower bearing 532 is bearing on this push broach nut 55.Sealing ring 56 is nested with in the lower end of inner sleeve 51 and fixes by sealing ring hold-down screw 561 and the lower end of inner sleeve 51.Broach shell 57 is connected with the lower end of cutter spindle 53 by broach shell bearing pin 571, and spring 58 is arranged in the spring cavity of upper end of broach shell 57.Shown in figure, broach shell 57 has a Cutting tool installation manner taper hole 572, for the tapping tool to work-piece tapping or title tapping-head (not shown), is plugged in this Cutting tool installation manner taper hole 572 and contacts with aforesaid spring 58.

Preferably, set a slip cap sealing ring 541 on aforesaid slip cap 54, this slip cap sealing ring 541 is sealed and matched with the outer wall of aforementioned inner sleeve 51; In the lower end of cutter spindle 53 and set a nut 534 below corresponding to cutter spindle lower bearing 532; Be embedded a push broach nut seal circle 551 on the outer wall of push broach nut 55, this push broach nut seal circle 551 is sealed and matched with the chamber wall of the internal canula lumen 511 of inner sleeve 51; Be embedded a sealing ring sealing ring 562 on the inwall of sealing ring 56, sealing lasso sealing ring 562 is sealed and matched with the outer wall of inner sleeve 51; Set an inner seal ring 563 in the bottom of push broach nut 56, this inner seal ring 563 is sealed and matched with the outer wall of cutter spindle 53.And then preferably, can set in the bottom corresponding to aforesaid sealing ring 56 disc 564.

The applicant describes the course of work of the present utility model in conjunction with Fig. 1 and Fig. 2: by the operator by being arranged on tapper or the similarly operation of the electric control box on equipment, make servomotor 41 work of the splined shaft driving mechanism 4 that is in transmission connection with electric control box, servo motor shaft 411 drives by servomotor 41 are fixed on the first drive 42 on servo motor shaft 411, drive the first drive 44 through driving-belt 43, because the second drive 44 and spline shaft gear 45 jointly are fixed on the upper end of splined shaft 3, again because spline shaft gear 45 is meshed with carrier gear 46, also because carrier gear 46 is meshed with the First Transition gear 72 of transition transmission mechanism 7, therefore drive splined shaft 3 rotations by the second drive 44, drive carrier gear 46 by spline shaft gear 45 simultaneously, and driven the First Transition gear 72 of transition transmission mechanism 7 by carrier gear 46, make splined shaft 3 in rotation status, the splined shaft that is driven the work-piece tapping mechanism 5 coordinated with its transmission by the rotation of splined shaft 3 is in transmission connection and overlaps 52, be in transmission connection and overlap connected cutter spindle 53 rotations of 52 drive by splined shaft, finally make broach shell 57 rotations that are connected with cutter spindle 53, driven the tapping tool rotation be installed in Cutting tool installation manner taper hole 572 by broach shell 57, by tapping tool, workpiece is processed to required screwed hole.

In said process, because the carrier gear 46 by splined shaft driving mechanism 4 drives the First Transition gear 72 of transition transmission mechanism 7 simultaneously, therefore drive 71 rotations of transition power transmission shaft by First Transition gear 72, and then by the screw gear 62 that is fixed on the second transition gear 72 drive range controlling mechanisms 6 on transition power transmission shaft 71, because screw gear 62 is fixed on leading screw 61, therefore by screw gear 62, drive leading screw 61 rotations.Again because sliding shoe 63 coordinates with leading screw 61 transmissions by ball nut 631, also because sliding shoe 63 is fixedly connected with (implementing to be fixedly connected with by chuck 634 and by clamping ring hold-down screw 6341) with the hub splines 31 be nested with on splined shaft 3, therefore in the process of leading screw 61 rotations, sliding shoe 63 is to bottom offset, and drives hub splines 31 to bottom offset in coordinating under guiding of guide wheel 6331 and guide rail 111.Be connected with inner sleeve 51 on inner sleeve connector 3111 due to the axle sleeve connector 311 of hub splines 31 lower ends, therefore at hub splines 31, in bottom offset, drive inner sleeve 51 to bottom offset.Again because push broach nut 55 is connected with inner sleeve 51, and sealing ring 56 is connected with inner sleeve 51 by sealing ring hold-down screw 561, therefore at inner sleeve 51 during to bottom offset, drive push broach nut 55 and 56 whiles of sealing ring descending, make broach shell 57 together with being arranged at tapping-head in Cutting tool installation manner bellmouth 572 to bottom offset, realize that work carries out journey.Due to tapping tool to the tapping depth of workpiece, be and be arranged on the distance that the signal picker on sliding shoe 63 rams between 632 to secondary signal collector 65b and adapt, therefore ram 632 while touching secondary signal collector 65b when signal picker, by this secondary signal collector 65b(first signal collector 65a be connected with the electric control box electrical control, with the electric control box electrical control, be connected equally) by signal feedback to electric control box, send instruction and make servomotor 41 reverse operations by electric control box, make leading screw 61 reverse rotations of range controlling mechanism 6 by aforesaid inverse process, sliding shoe 63 is to top offset, hub splines 31 is also to top offset, recess workpiece until make tapping tool, when signal picker rams 632 while touching first signal collector 65a, by first signal collector 65 by signal feedback to electric control box, given the servomotor 41 of splined shaft driving mechanism 4 to instruction by electric control box, the servo motor shaft 411 of servomotor 41 is rotated in the forward again, again to next workpiece or to the different station place of same workpiece, process required screwed hole by above stated specification.

In sum, the technical scheme that the utility model provides has overcome the shortcoming in the prior art objectively, has successfully completed the invention task, and has cashed faithfully the technique effect in the superincumbent technique effect of applicant hurdle.

Claims (10)

1. a kind of servo feed tapper unit device, comprise and form the transmission control cabinet (1) that transmission control cabinet chamber (11) is arranged, be fixed on transmission control cabinet (1) top and form the transmission case (2) that transmission case chamber (21) are arranged, upper end is stretched in transmission case chamber (21) and lower end at the splined shaft (3) be stretched over after transmission control cabinet (1) outside transmission control cabinet (1), be arranged on transmission case (2) and splined shaft driving mechanism (4) that be in transmission connection with the described upper end of splined shaft (3) in transmission case chamber (21) and with the described lower end of splined shaft (3), be connected for the work-piece tapping mechanism (5) to work-piece tapping, wherein: be equipped with a hub splines (31) on splined shaft (3), characterized by further comprising one and pass to the transition transmission mechanism (7) of range controlling mechanism (6) for the range controlling mechanism (6) that orders about described work-piece tapping mechanism (5) upstream or downstream and for the driving force by described splined shaft driving mechanism (4), range controlling mechanism (6) is arranged in the transmission control cabinet chamber (11) of described transmission control cabinet (1), and with described hub splines (31), be connected in transmission control cabinet chamber (11), transition transmission mechanism (7) is arranged on described transmission case (2), and this transition transmission mechanism (7) is in transmission connection with described splined shaft driving mechanism (4) in described transmission case chamber (21), and with described range controlling mechanism (6), be in transmission connection outside transmission case chamber (21), described splined shaft driving mechanism (4) is driven by servomotor formula driving mechanism.

2. servo feed tapper unit device according to claim 1, it is characterized in that forming a screw gear chamber (12) being arranged at the top of described transmission control cabinet (1), and offer a leading screw bearing bore (121) on the diapire of screw gear chamber (12), described range controlling mechanism (6) comprises leading screw (61), screw gear (62), sliding shoe (63), signal picker installing rack (64), first signal collector (65a) and secondary signal collector (65b), the upper end of leading screw (61) is rotatably assorted by leading screw upper bearing (metal) (611) and leading screw bearing bore (121), and be stretched in screw gear chamber (12), the lower end of leading screw (61) is bearing on the chamber diapire in described transmission control cabinet chamber (11) rotationally by leading screw lower bearing (612), screw gear (62) is fixed in the described upper end of leading screw (61) in screw gear chamber (12), one end of sliding shoe (63) is nested with on the described hub splines (31) on described splined shaft (3), and be fixedly connected with hub splines (31), and the other end of sliding shoe (63) coordinates with leading screw (61) transmission by ball nut (631), be fixed with a signal picker ram (632) on this sliding shoe (63), signal picker installing rack (64) is fixed in described transmission control cabinet chamber (11), first signal collector (65a) is fixed on the upper end of signal picker installing rack (64), secondary signal collector (65b) is fixed on the lower end of signal picker installing rack (64), and corresponding with first signal collector (65a), described signal picker ram (632) and first signal collector (65a) and corresponding with secondary signal collector (65b), the described transition transmission mechanism (7) be in transmission connection with described splined shaft driving mechanism (4) is in transmission connection with described screw gear (62), the top of described transmission case (2) is provided with one for described transmission case chamber (21) being covered to the transmission-case cover (22) protected.

3. servo feed tapper unit device according to claim 2, it is characterized in that offering in the described upper end of described signal picker installing rack (64) a first signal collector adjustment tank (641), and lower end offers a secondary signal collector adjustment tank (642), described first signal collector (65a) is fixing in the position corresponding to first signal collector adjustment tank (641) and signal picker installing rack (64), described secondary signal collector (65b) is fixing in the position corresponding to secondary signal collector adjustment tank (642) and signal picker installing rack (64).

4. according to the described servo feed tapper unit of claim 2 or 3 device, it is characterized in that described first signal collector (65a) and secondary signal collector (65b) are travel switch, microswitch, position approach switch, tongue tube or hall sensing element.

5. servo feed tapper unit device according to claim 2, it is characterized in that described transition transmission mechanism (7) comprises transition power transmission shaft (71), First Transition gear (72) and the second transition gear (73), the middle part of transition power transmission shaft (71) is bearing on transition transmission shafts bearing (711) rotationally, transition transmission shafts bearing (711) is arranged on bearing fixed seat (7111), and bearing fixed seat (7111) directly is formed in the bottom in the transmission case chamber (21) of described transmission case (2), the upper end of transition power transmission shaft (71) is stretched in transmission case chamber (21), lower end is bearing in rotationally on the chamber diapire in transmission case chamber (21) and is stretched over outside transmission case chamber (21) by transition transmission shaft bearing (712), First Transition gear (72) is fixed on the upper end of transition power transmission shaft (71), and be in transmission connection with described splined shaft driving mechanism (4), the second transition gear (73) is fixed on the described lower end of transition power transmission shaft (71), and be meshed with described screw gear (62), described splined shaft (3) is vertically parallel with described leading screw (61).

6. servo feed tapper unit device according to claim 2, it is characterized in that on the chamber wall in described transmission control cabinet chamber (11) and be fixed with pair of guide rails (111) in the position of a side of the length direction corresponding to described sliding shoe (63) with vertical parallel state, and in a side of the described length direction of sliding shoe (63) and be fixed with a guide wheel shaft (633) in the position corresponding between pair of guide rails (111), be provided with rotationally a guide wheel (6331) on this guide wheel shaft (633), this guide wheel (6331) is placed between pair of guide rails (111) and with pair of guide rails (111) and rolls and coordinate.

7. servo feed tapper unit device according to claim 5, it is characterized in that described splined shaft driving mechanism (4) comprises servomotor (41), the first drive (42), driving-belt (43), the second drive (44), spline shaft gear (45) and carrier gear (46), servomotor (41) is fixed on the bottom of described transmission case (2) with cantilever position, the servo motor shaft (411) of this servomotor (41) probes in the transmission case chamber (21) of described transmission case (2), the first drive (42) is fixed on servo motor shaft (411), one end of driving-belt (43) is nested with on the first drive (42), the other end is nested with on the second drive (44), the second drive (44) and spline shaft gear (45) are fixed on described splined shaft (3) jointly, and spline shaft gear (45) is positioned at the top of the second drive (44), carrier gear (46) is nested with on bridge gear shaft (461), and this carrier gear (46) is meshed with described spline shaft gear (45) and First Transition gear (72) simultaneously, described bridge gear shaft (461) is fixed on carrier gear axial adjustment plate (4611), and this carrier gear axial adjustment plate (4611) is fixed on the chamber wall in transmission case chamber (21).

8. servo feed tapper unit device according to claim 7, it is characterized in that being fixed with an adjustment panel seat (211) on the described chamber wall in the transmission case chamber (21) of described transmission case (2), offer on described carrier gear axial adjustment plate (4611) and adjust plate adjustment tank (46111), carrier gear axial adjustment plate (4611) passes through to adjust plate hold-down screw (46112) in the position corresponding to adjusting plate adjustment tank (46111) and adjusts panel seat (211) and fix.

9. servo feed tapper unit device according to claim 1, it is characterized in that in the bottom of described transmission control cabinet (1) and form a threaded connector (13) is arranged in the position corresponding to described hub splines (31), above with cantilever position, be fixed with an outer tube (131) at this threaded connector (13), this outer tube (131) has an overcoat tube chamber (1311), the lower end of hub splines (31) is stretched in this overcoat tube chamber (1311), and forming has a diameter to be greater than the axle sleeve connector (311) of the diameter of hub splines (31), be extended with the inner sleeve connector (3111) that a diameter is less than the diameter of axle sleeve connector (311) in the bottom of this axle sleeve connector (311), inner sleeve connector (3111) is stretched out in the lower end of described splined shaft (3), described work-piece tapping mechanism (5) is in transmission connection with the described lower end of splined shaft (3).

10. servo feed tapper unit device according to claim 9, it is characterized in that described work-piece tapping mechanism (5) comprises inner sleeve (51), the splined shaft cover (52) that is in transmission connection, cutter spindle (53), slip cap (54), push broach nut (55), sealing ring (56), broach shell (57) and spring (58), inner sleeve (51) is positioned at described overcoat tube chamber (1311), the upper end of this inner sleeve (51) is threaded with described inner sleeve connector (3111) with the vertical cantilever state, the splined shaft cover (52) that is in transmission connection is nested with the described lower end at described splined shaft (3), and the be in transmission connection upper end of cover (52) of this splined shaft coordinates with the spline drived on splined shaft (3), the upper end of cutter spindle (53) is bearing on cutter spindle upper bearing (metal) (531) rotationally, and leaning out the be in transmission connection lower end of cover (52) of cutter spindle upper bearing (metal) (531) and described splined shaft is threaded, the lower end of cutter spindle (53) is bearing on cutter spindle lower bearing (532) rotationally, cutter spindle upper bearing (metal) (531) and cutter spindle lower bearing (532) are arranged in the internal canula lumen (511) of inner sleeve (51), and be provided with one for the upper bearing (metal) positioning spacer (5311) to cutter spindle upper bearing (metal) (531) restriction between the end face of cutter spindle upper bearing (metal) (531) and described inner sleeve connector (3111), and on cutter spindle, lower bearing (531, 532) be provided with one between for to cutter spindle, lower bearing (531, 532) the lower bearing positioning spacer (5321) simultaneously limited, wherein: the axial central authorities of cutter spindle (53) form a spline axocoel (533), the lower end of described splined shaft (3) is insinuated into spline axocoel (533), outer tube internal thread (1312) screw thread on the inwall of the lower end of slip cap (54) and described outer tube (131) connects, the outer wall of described inner sleeve (51) and this slip cap (54) are slidably matched, push broach nut (55) is positioned at internal canula lumen (511), and fix with the lower end of internal canula lumen (511), described cutter spindle lower bearing (532) is bearing on push broach nut (55), sealing ring (56) is nested with the lower end in inner sleeve (51), and fixing with inner sleeve (51), broach shell (57) is connected with the lower end of cutter spindle (53), spring (58) is arranged in the spring cavity of upper end of broach shell (57).