CN108723518A - A kind of multifunctional safety is self-centering to attack threading device and application method - Google Patents

A kind of multifunctional safety is self-centering to attack threading device and application method Download PDF

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Publication number
CN108723518A
CN108723518A CN201810734413.0A CN201810734413A CN108723518A CN 108723518 A CN108723518 A CN 108723518A CN 201810734413 A CN201810734413 A CN 201810734413A CN 108723518 A CN108723518 A CN 108723518A
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CN
China
Prior art keywords
screw
ontology
tool
screw tap
ball stud
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CN201810734413.0A
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Chinese (zh)
Inventor
闫周
王帅
高耀文
葛仕文
曹国强
杨旭
李向阳
武国瑞
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Shenyang Aerospace University
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Shenyang Aerospace University
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Priority to CN201810734413.0A priority Critical patent/CN108723518A/en
Publication of CN108723518A publication Critical patent/CN108723518A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00Thread-cutting tools; Die-heads
    • B23G5/02Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/06Taps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00Thread-cutting tools; Die-heads
    • B23G5/02Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/04Dies

Abstract

A kind of multifunctional safety is self-centering to attack threading device and application method, and it includes power transmission ontology, tool clamping ontology and tailstock tool switching ontology to attack threading device;Power transmission ontology includes force transmission shaft, the shaft shoulder, scale guiding axis and auxiliary guiding axis, assists being set with thrust spring on guiding axis;It is equipped with holding holes in tool clamping ontology and force transmission shaft suit hole, holding holes circumferentially set trip bolt;Tailstock tool switching ontology includes switching taper shank and reducing sleeve, interior to be equipped with scale/auxiliary guiding axis suit hole;Force transmission shaft is equipped with annular groove and locking skewed slot, and force transmission shaft suit hole is circumferentially with housing screw, holddown spring and ball stud, and ball stud acts against in locking skewed slot;Power transmission ontology and tool clamping ontology between be equipped with preloading spring, power transmission ontology can machine tool chief axis transfer ontology in radial floating, to realize self-centering.There are two types of application methods for the threading device tool of attacking of the present invention, and are used respectively as reamer/windeisen and die-stock, meet overload protection requirement.

Description

A kind of multifunctional safety is self-centering to attack threading device and application method
Technical field
The invention belongs to screw thread process technical field, more particularly to a kind of multifunctional safety it is self-centering attack threading device and Application method.
Background technology
Currently, when by machine tooling small size screw thread (M22 or less), screwing tool mainly has screw tap and plate Tooth, for processing small size internal thread, screw die adds for processing small size external screw thread for screw tap progress internal thread to be clamped screw tap The auxiliary tool of work is windeisen, and also known as " tap wrench ", the auxiliary tool that outer bolt processing is carried out for screw die to be clamped is plate Tooth spanner, also known as " die handle ", and windeisen and die-stock are independent from each other two kinds of spanners always, that is, It says, when needing while using tap and die progress internal and external threads processing, it is also necessary to prepare windeisen and screw die simultaneously , this will necessarily also increase auxiliary spanner in the quantity for virtually increasing auxiliary tool, and for tool manufacturing enterprise The manufacturing cost of assistant engineer's tool.
Further more, traditional windeisen and die-stock is felt relieved by tailstock tool center hole, and workpiece is by master Axis chuck carries out clamping centering, but factors are influenced by workpiece outer diameter is lack of standardization etc., after clamping workpiece, work Part axle center is susceptible to off-set phenomenon with machine tool chief axis axle center, and tapping occur so as to cause workpiece attacks partially or cover the inclined phenomenon of silk braid, It can also cause screw tap or screw die to be broken damage when serious, while cause part rejection.
In addition, when screw tap progress internal thread machining is clamped using traditional windeisen, and traditional die-stock is utilized to press from both sides When holding screw die progress outer bolt processing, the rotating spanner progress screw thread process on lathe manually is needed, not only labor intensity Greatly, and screw processing quality is not easy to ensure, screw tap or screw die can be damaged caused by undue force toward contact, in particular with silk When boring processing blind hole screw thread, more wants especially careful, because easily screw tap fractures in processing blind hole screw thread, while causing part It scraps.
Invention content
In view of the problems of the existing technology, a kind of multifunctional safety of present invention offer is self-centering attacks threading device and use Method, this attacks the repertoire that threading device is integrated with windeisen and die-stock for the first time, and as windeisen in use, It is further extended to reamer holder to be used, while meeting the screw tap of different size, the clamping of reamer and screw die and exchange;Every time Only need to prepare a set of threading device of attacking can meet two kinds of job requirements, reduce the quantity of auxiliary tool, effectively save tool Parking space can also reduce the manufacturing cost of auxiliary tool for tool manufacturing enterprise;The present invention's attacks threading device It is also equipped with overload protection function, can effectively avoid tap and die from being damaged in screw thread process, and attacking as the present invention After threading device is combined with lathe, can screw thread process directly be carried out by machine power, reduce the labor intensity of worker, spiral shell is provided Line processing quality, be provided simultaneously with the self centering ability of workpiece, avoid workpiece occur tapping attack partially or set the inclined phenomenon of silk braid, The proportion of goods damageds of tap and die are greatly lowered.
To achieve the goals above, the present invention adopts the following technical scheme that:A kind of multifunctional safety is self-centering to attack mantle fiber Device, including power transmission ontology, tool clamping ontology and tailstock tool switching ontology;The power transmission ontology uses level Four multi-diameter shaft knot Structure, first order multi-diameter shaft are force transmission shaft, and second level multi-diameter shaft is the shaft shoulder, and third level multi-diameter shaft is scale guiding axis, is led in scale It is equipped with graduated scale to axis, guiding axis is helped supplemented by fourth stage multi-diameter shaft, part relief hole is offered at the center of power transmission ontology, and The aperture of part relief hole is located on force transmission shaft;Two-stage stepped hole, first order ladder are offered in tool clamping ontology Hole is tool holding holes, and second level stepped hole is force transmission shaft suit hole;Ontology is clamped in the corresponding tool of the tool holding holes On several tool trip bolts are distributed with;The tailstock tool switching ontology includes that tailstock tool switching taper shank and power transmission ontology turn Female connector, and tailstock tool switching taper shank and power transmission ontology reducing sleeve are that integral type manufactures structure;The power transmission ontology reducing sleeve Endoporus is scale guiding axis suit hole, auxiliary guiding axis suit hole is offered in tailstock tool switching taper shank, described It is set with thrust spring on auxiliary guiding axis between scale guiding axis and tailstock tool switching taper shank;Turn in the power transmission ontology Guide slots are offered in female connector, guide blot are fixed on the scale guiding axis, and guide blot is located at guide slots It is interior;The force transmission shaft of the power transmission ontology is located in the force transmission shaft suit hole of tool clamping ontology, force transmission shaft and force transmission shaft suit hole Clearance fit is clamped on the force transmission shaft between ontology in the power transmission ontology and tool and is set with preloading spring;In the power transmission Annular groove and locking skewed slot are offered on axis, locking skewed slot one end is connected with annular groove;It is corresponded in the force transmission shaft suit hole Tool clamping ontology on be fixed with locking sleeve, the inner end of locking sleeve be equipped with ball stud, between ball stud and locking sleeve Gap coordinates, and the bulb end of ball stud acts against in locking skewed slot;Housing screw is installed in the outer end of the locking sleeve, is being pressed Tightly holddown spring is installed between screw and ball stud, the pressing force of ball stud is carried out by adjusting the decrement of holddown spring It adjusts.
Between the scale guiding axis and scale guiding axis suit hole, between auxiliary guiding axis and auxiliary guiding axis suit hole It is equipped with axle center adjustment gap, the power transmission ontology and tool clamping ontology adjust gap by axle center and carry out radial floating, lead to The radial floating for crossing power transmission ontology and tool clamping ontology carries out self-centering with workpiece.
The size in axle center adjustment gap is 0.5mm~1mm.
Chip-removal hole is offered on tool clamping ontology between the tool holding holes and locking sleeve.
The screw die switching of screw tap retaining sleeve and several different model of the tool holding holes configured with several different models Set is adapted to the screw tap of different model by screw tap retaining sleeve, fixation is clamped to screw tap end side handle by screw tap retaining sleeve, The screw die of different model is adapted to by screw die reducing sleeve.
It is equipped in the power transmission ontology reducing sleeve outer surface of tailstock tool switching ontology and holds frictional force for increasing Knurling structure.
The tailstock tool switching taper shank is Morse taper shank.
A kind of self-centering application method for attacking threading device of multifunctional safety carries out internal thread machining for screw tap to be clamped, Include the following steps:
Step 1:Tailstock tool switching taper shank is inserted into tailstock tool and is fixed, according to internal thread ruler to be processed It is very little, the pretightning force of housing screw is adjusted, ball stud is made to be acted against under the pretightning force of setting in locking skewed slot, reselection one adds The screw tap of work and a screw tap retaining sleeve to match with screw tap screw work by screw tap retaining sleeve inserter holding holes Have trip bolt, completes the fixation that screw tap clamping is sleeved in tool holding holes, then screw tap end side handle is inserted into screw tap retaining sleeve In, the axial position of screw tap is then adjusted, until the head of screw tap abuts against at screw hole aperture to be processed, while ensureing thrust The decrement of spring is more than tapping stroke;
Step 2:Start lathe, the main shaft of control lathe rotates forward, and thrust spring reversely exports axial thrust, keeps screw tap real Existing auto-feed, while the amount of feeding is determined by the graduated scale on scale guiding axis;When the processing resistance of internal thread is less than screw tap Damageability when, do not occur between ball stud and locking skewed slot it is opposite slide, lasting rotating torque is provided for screw tap by lathe, Processing until completing internal thread;When internal thread processing resistance be more than screw tap damageability when, ball stud with locking skewed slot it Between opposite sliding will occur, the rotating torque that screw tap is born is not further added by, until ball stud slides into annular groove from locking skewed slot In, preloading spring is compressed, and tool clamping ontology dallies, and overload protection is carried out to screw tap;
Step 3:After process finishing, the main shaft of control lathe inverts;When overload protection does not occur, screw tap will be moved back directly Go out screw hole;When overload protection occurs, preloading spring deboost effect under, by machine tool chief axis reversion make ball stud from Annular groove is returned to again in locking skewed slot, and then screw tap is exited screw hole again;Until thrust spring recovery initial length, then will Screw tap is extracted out from screw tap retaining sleeve.
A kind of self-centering application method for attacking threading device of multifunctional safety carries out external screw thread processing for screw die to be clamped, Include the following steps:
Step 1:Tailstock tool switching taper shank is inserted into tailstock tool and is fixed, according to external screw thread ruler to be processed It is very little, the pretightning force of housing screw is adjusted, ball stud is made to be acted against under the pretightning force of setting in locking skewed slot, reselection one adds The screw die of work selects mating screw die reducing sleeve according to the difference of screw die model, and screw die is put into work by screw die reducing sleeve Have in holding holes, screwing tool trip bolt, completes fixation of the screw die in tool holding holes, then adjust the axial position of screw die It sets, until the endoporus of screw die acts against screw rod end to be processed, while ensureing that the decrement of thrust spring is more than mantle fiber stroke;
Step 2:Start lathe, the main shaft of control lathe rotates forward, and thrust spring reversely exports axial thrust, keeps screw die real Existing auto-feed, while the amount of feeding is determined by the graduated scale on scale guiding axis;When externally threaded processing resistance is less than screw die Damageability when, do not occur between ball stud and locking skewed slot it is opposite slide, lasting rotating torque is provided for screw die by lathe, Until completing externally threaded processing;When it is externally threaded processing resistance be more than screw die damageability when, ball stud with locking skewed slot it Between opposite sliding will occur, the rotating torque that screw die is born is not further added by, until ball stud slides into annular groove from locking skewed slot In, preloading spring is compressed, and tool clamping ontology dallies, and overload protection is carried out to screw die;
Step 3:After process finishing, the main shaft of control lathe inverts, and when overload protection does not occur, screw die will be moved back directly Go out screw rod;When overload protection occurs, preloading spring deboost effect under, by machine tool chief axis reversion make ball stud from Annular groove is returned to again in locking skewed slot, and then screw die is exited screw rod again;Until thrust spring recovery initial length, then will Screw die and screw die reducing sleeve take out from tool holding holes together.
Beneficial effects of the present invention:
The multifunctional safety of the present invention is self-centering to attack threading device, is integrated with the whole of windeisen and die-stock for the first time Function, and used as windeisen in use, being further extended to reamer holder, while meeting the silk of different size Clamping and the exchange of cone, reamer and screw die;Only need to prepare a set of threading device of attacking can meet two kinds of job requirements every time, reduce The quantity of auxiliary tool effectively saves tool storage space, for tool manufacturing enterprise, can also reduce backman The manufacturing cost of tool;The threading device of attacking of the present invention is also equipped with overload protection function, and effectively tap and die can be avoided in screw thread It is damaged, and when the present invention is after attacking threading device and combined with lathe, can directly be added by machine power progress screw thread when processing Work reduces the labor intensity of worker, provides screw processing quality, be provided simultaneously with the self centering ability of workpiece, avoid There is tapping and attacks partially or cover the inclined phenomenon of silk braid in workpiece, and the proportion of goods damageds of tap and die are greatly lowered.
Description of the drawings
Fig. 1 is a kind of self-centering structural representation for attacking threading device (overload protection does not occur) of multifunctional safety of the present invention Figure;
Fig. 2 is a kind of self-centering structural representation for attacking threading device (overload protection has occurred) of multifunctional safety of the present invention Figure;
Fig. 3 is the front view of the power transmission ontology of the present invention;
Fig. 4 is the side view of the power transmission ontology of the present invention;
Fig. 5 is the front view of the tailstock tool switching ontology of the present invention;
Fig. 6 is the vertical view of the tailstock tool switching ontology of the present invention;
In figure, ontology, 3-tailstock tools switching ontology, 4-force transmission shafts, 5-axis are clamped in 1-power transmission ontology, 2-tools Shoulder, 6-scale guiding axis, 7-auxiliary guiding axis, 8-part relief holes, 9-tool holding holes, 10-force transmission shaft suit holes, 11-tool trip bolts, 12-tailstock tools switching taper shank, 13-power transmission ontology reducing sleeves, 14-scale guiding axis suit Hole, 15-auxiliary guiding axis suit holes, 16-thrust springs, 17-guide slots, 18-guide blots, 19-preloading springs, 20-annular grooves, 21-locking skewed slots, 22-locking sleeves, 23-ball studs, 24-housing screws, 25-holddown springs, 26-chip-removal holes, 27-screw tap retaining sleeves, 28-screw die reducing sleeves.
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in figs. 1 to 6, a kind of multifunctional safety is self-centering attacks threading device, including the clamping of power transmission ontology 1, tool is originally Body 2 and tailstock tool switching ontology 3;It is force transmission shaft 4 that the power transmission ontology 1, which uses level Four multidiameter structure, first order multi-diameter shaft, Second level multi-diameter shaft be the shaft shoulder 5, third level multi-diameter shaft be scale guiding axis 6, on scale guiding axis 6 be equipped with graduated scale, the 4th Guiding axis 7 is helped supplemented by grade multi-diameter shaft, part relief hole 8, and the aperture of part relief hole 8 are offered at the center of power transmission ontology 1 On force transmission shaft 4;Two-stage stepped hole is offered in tool clamping ontology 2, first order stepped hole is tool holding holes 9, second level stepped hole is force transmission shaft suit hole 10;If being distributed on 9 corresponding tool of tool holding holes clamping ontology 5 Dry tool trip bolt 11;The tailstock tool switching ontology 3 includes tailstock tool switching taper shank 12 and power transmission ontology reducing sleeve 13, and tailstock tool switching taper shank 12 and power transmission ontology reducing sleeve 13 are that integral type manufactures structure;The power transmission ontology reducing sleeve 13 endoporus is scale guiding axis suit hole 14, and auxiliary guiding axis suit hole is offered in tailstock tool switching taper shank 12 15, the scale guiding axis 6 and tailstock tool switching taper shank 12 between auxiliary guiding axis 7 on be set with thrust spring 16; Guide slots 17 are offered on the power transmission ontology reducing sleeve 13, guide blot 18 is fixed on the scale guiding axis 6, And guide blot 18 is located in guide slots 17;The force transmission shaft 4 of the power transmission ontology 1 is located at the force transmission shaft of tool clamping ontology 2 In suit hole 10, force transmission shaft 4 and 10 clearance fit of force transmission shaft suit hole, between the power transmission ontology 1 and tool clamping ontology 2 Force transmission shaft 4 on be set with preloading spring 19;Annular groove 20 and locking skewed slot 21 are offered on the force transmission shaft 4, locking is oblique 21 one end of slot is connected with annular groove 20;It is fixed with locking on 10 corresponding tool of force transmission shaft suit hole clamping ontology 2 Casing 22 is equipped with ball stud 23, ball stud 23 and 22 clearance fit of locking sleeve in the inner end of locking sleeve 22, ball stud 23 Bulb end acts against in locking skewed slot 21;Housing screw 24 is installed in the outer end of the locking sleeve 22, in housing screw 24 Holddown spring 25 is installed between ball stud 23, by adjusting holddown spring 25 decrement to the pressing force of ball stud 23 into Row is adjusted.
Between the scale guiding axis 6 and scale guiding axis suit hole 14, assist guiding axis 7 and auxiliary guiding axis suit hole Axle center adjustment gap is equipped between 15, the power transmission ontology 1 and tool clamping ontology 2 adjust gap by axle center and carry out radial direction It floats, the radial floating of ontology 2 is clamped by power transmission ontology 1 and tool and workpiece carries out self-centering.
The size in axle center adjustment gap is 0.5mm~1mm.
Chip-removal hole 26 is offered on tool clamping ontology 2 between the tool holding holes 9 and locking sleeve 22.
The screw die of screw tap retaining sleeve 27 and several different model of the tool holding holes 8 configured with several different models turns Female connector 28 is adapted to the screw tap of different model by screw tap retaining sleeve 27, is carried out to screw tap end side handle by screw tap retaining sleeve 27 It is fixedly clamped, the screw die of different model is adapted to by screw die reducing sleeve 28.
It is equipped in 13 outer surface of power transmission ontology reducing sleeve of tailstock tool switching ontology 3 and holds frictional force for increasing Knurling structure.
The tailstock tool switching taper shank 12 is Morse taper shank.
A kind of self-centering application method for attacking threading device of multifunctional safety carries out internal thread machining for screw tap to be clamped, Include the following steps:
Step 1:Tailstock tool switching taper shank 12 is inserted into tailstock tool and is fixed, according to internal thread to be processed Size adjusts the pretightning force of housing screw 24, so that ball stud 23 is acted against under the pretightning force of setting in locking skewed slot 21, then select 27 inserter of screw tap retaining sleeve is clamped the screw tap and a screw tap retaining sleeve 27 to match with screw tap for selecting a processing In hole 9, screwing tool trip bolt 11 completes fixation of the screw tap retaining sleeve 27 in tool holding holes 9, then by screw tap end side Handle is inserted into screw tap retaining sleeve 27, the axial position of screw tap is then adjusted, until the head of screw tap abuts against screw hole to be processed At aperture, while ensureing that the decrement of thrust spring 16 is more than tapping stroke;
Step 2:Start lathe, the main shaft of control lathe rotates forward, and thrust spring 16 reversely exports axial thrust, makes screw tap It realizes auto-feed, while the amount of feeding is determined by the graduated scale on scale guiding axis 6;When the processing resistance of internal thread is less than silk When the damageability of cone, do not occur to slide relatively between ball stud 23 and locking skewed slot 21, lasting turn is provided for screw tap by lathe Kinetic moment, the processing until completing internal thread;When the processing resistance of internal thread is more than the damageability of screw tap, ball stud 23 and lock Opposite sliding will occur between tight skewed slot 21, the rotating torque that screw tap is born is not further added by, until ball stud 23 is from locking skewed slot It is slid into annular groove 20 in 21, preloading spring 19 is compressed, and tool clamping ontology 2 dallies, and overload protection is carried out to screw tap;
Step 3:After process finishing, the main shaft of control lathe inverts;When overload protection does not occur, screw tap will be moved back directly Go out screw hole;When overload protection occurs, under the deboost effect of preloading spring 19, ball stud is made by machine tool chief axis reversion 23 return to from annular groove 20 again in locking skewed slot 21, and then screw tap is exited screw hole again;Until thrust spring 16 restores just Beginning length, then screw tap is extracted out from screw tap retaining sleeve 27.
Similarly, this operation be also applied for clamping different size reamer ream.
Step 1:Tailstock tool switching taper shank 12 is inserted into tailstock tool and is fixed, according to external screw thread to be processed Size adjusts the pretightning force of housing screw 24, so that ball stud 23 is acted against under the pretightning force of setting in locking skewed slot 21, then select The screw die for selecting a processing selects mating screw die reducing sleeve 28 according to the difference of screw die model, and screw die is turned by screw die In 28 inserter holding holes 9 of female connector, screwing tool trip bolt 11 completes fixation of the screw die in tool holding holes 9, then The axial position for adjusting screw die until the endoporus of screw die acts against screw rod end to be processed, while ensureing thrust spring 16 Decrement is more than mantle fiber stroke;
Step 2:Start lathe, the main shaft of control lathe rotates forward, and thrust spring 16 reversely exports axial thrust, makes screw die It realizes auto-feed, while the amount of feeding is determined by the graduated scale on scale guiding axis 6;When externally threaded processing resistance is less than plate When the damageability of tooth, do not occur to slide relatively between ball stud 23 and locking skewed slot 21, lasting turn is provided for screw die by lathe Kinetic moment, until completing externally threaded processing;When externally threaded processing resistance is more than the damageability of screw die, ball stud 23 and lock Opposite sliding will occur between tight skewed slot 21, the rotating torque that screw die is born is not further added by, until ball stud 23 is from locking skewed slot It is slid into annular groove 20 in 21, preloading spring 19 is compressed, and tool clamping ontology 2 dallies, and overload protection is carried out to screw die;
Step 3:After process finishing, the main shaft of control lathe inverts, and when overload protection does not occur, screw die will be moved back directly Go out screw rod;When overload protection occurs, under the deboost effect of preloading spring 19, ball stud is made by machine tool chief axis reversion 23 return to from annular groove 20 again in locking skewed slot 21, and then screw die is exited screw rod again;Until thrust spring 16 restores just Beginning length, then screw die and screw die reducing sleeve 28 are taken out from tool holding holes 9 together.
Scheme in embodiment be not to limit the scope of patent protection of the present invention, it is all without departing from carried out by the present invention etc. Effect implements or change, is both contained in the scope of the claims of this case.

Claims (9)

1. a kind of multifunctional safety is self-centering to attack threading device, it is characterised in that:Including power transmission ontology, tool clamping ontology and machine Tailstock seat switching ontology;It is force transmission shaft, second level ladder that the power transmission ontology, which uses level Four multidiameter structure, first order multi-diameter shaft, Axis is the shaft shoulder, and third level multi-diameter shaft is scale guiding axis, and graduated scale is equipped on scale guiding axis, and fourth stage multi-diameter shaft is auxiliary Guiding axis offers part relief hole at the center of power transmission ontology, and the aperture of part relief hole is located on force transmission shaft;Described Two-stage stepped hole is offered in tool clamping ontology, first order stepped hole is tool holding holes, and second level stepped hole is force transmission shaft Suit hole;Several tool trip bolts are distributed on the corresponding tool clamping ontology of the tool holding holes;The lathe tail Seat switching ontology includes tailstock tool switching taper shank and power transmission ontology reducing sleeve, and tailstock tool switching taper shank and power transmission ontology turn Female connector is that integral type manufactures structure;The endoporus of the power transmission ontology reducing sleeve is scale guiding axis suit hole, in the lathe tail Auxiliary guiding axis suit hole is offered in seat switching taper shank, it is auxiliary between the scale guiding axis and tailstock tool switching taper shank It helps and is set with thrust spring on guiding axis;Guide slots are offered on the power transmission ontology reducing sleeve, are oriented in the scale Guide blot is fixed on axis, and guide blot is located in guide slots;The force transmission shaft of the power transmission ontology is located at tool clamping In the force transmission shaft suit hole of ontology, this is clamped in the power transmission ontology and tool in force transmission shaft and force transmission shaft suit hole clearance fit It is set with preloading spring on force transmission shaft between body;Annular groove and locking skewed slot are offered on the force transmission shaft, lock skewed slot One end is connected with annular groove;It is fixed with locking sleeve on the corresponding tool clamping ontology of the force transmission shaft suit hole, is being locked The inner end of fixed pipe is equipped with ball stud, ball stud and locking sleeve clearance fit, and the bulb end of ball stud acts against locking skewed slot It is interior;Housing screw is installed in the outer end of the locking sleeve, holddown spring is installed between housing screw and ball stud, is led to The pressing force of ball stud is adjusted in the decrement of the whole holddown spring of toning.
2. a kind of multifunctional safety according to claim 1 is self-centering to attack threading device, it is characterised in that:The scale is led It is equipped between the adjustment of axle center between axis and scale guiding axis suit hole, between auxiliary guiding axis and auxiliary guiding axis suit hole Gap, the power transmission ontology and tool clamping ontology adjust gap by axle center and carry out radial floating, pass through power transmission ontology and tool The radial floating and workpiece that ontology is clamped carry out self-centering.
3. a kind of multifunctional safety according to claim 2 is self-centering to attack threading device, it is characterised in that:The axle center tune The size in whole gap is 0.5mm~1mm.
4. a kind of multifunctional safety according to claim 1 is self-centering to attack threading device, it is characterised in that:In the tool Chip-removal hole is offered on tool clamping ontology between holding holes and locking sleeve.
5. a kind of multifunctional safety according to claim 1 is self-centering to attack threading device, it is characterised in that:The tool holder The screw die reducing sleeve for holding screw tap retaining sleeve and several different model of the hole configured with several different models, it is suitable by screw tap retaining sleeve Screw tap with different model is clamped fixation to screw tap end side handle by screw tap retaining sleeve, is adapted to by screw die reducing sleeve The screw die of different model.
6. a kind of multifunctional safety according to claim 1 is self-centering to attack threading device, it is characterised in that:In the lathe The power transmission ontology reducing sleeve outer surface of tailstock switching ontology is equipped with for increasing the knurling structure for holding frictional force.
7. a kind of multifunctional safety according to claim 1 is self-centering to attack threading device, it is characterised in that:The lathe tail Seat switching taper shank is Morse taper shank.
8. the self-centering application method for attacking threading device of multifunctional safety described in claim 1, for being clamped in screw tap progress Screw thread process, it is characterised in that include the following steps:
Step 1:Tailstock tool switching taper shank is inserted into tailstock tool and is fixed, according to dimension of inner screw thread to be processed, is adjusted The pretightning force of whole housing screw makes ball stud be acted against under the pretightning force of setting in locking skewed slot, and one processing of reselection is used Screw tap and a screw tap retaining sleeve to match with screw tap, by screw tap retaining sleeve inserter holding holes, screwing tool is tight Gu screw completes the fixation that screw tap clamping is sleeved in tool holding holes, then screw tap end side handle is inserted into screw tap retaining sleeve, so The axial position for adjusting screw tap afterwards, until the head of screw tap abuts against at screw hole aperture to be processed, while ensureing thrust spring Decrement be more than tapping stroke;
Step 2:Start lathe, the main shaft of control lathe rotates forward, and thrust spring reversely exports axial thrust, and screw tap is made to realize certainly Dynamic feeding, while the amount of feeding is determined by the graduated scale on scale guiding axis;When the processing resistance of internal thread is less than the damage of screw tap When bad power, does not occur to slide relatively between ball stud and locking skewed slot, lasting rotating torque is provided for screw tap by lathe, until Complete the processing of internal thread;It, will between ball stud and locking skewed slot when the processing resistance of internal thread is more than the damageability of screw tap Opposite sliding occurs, the rotating torque that screw tap is born is not further added by, until ball stud slides into from locking skewed slot in annular groove, in advance Tight spring is compressed, and tool clamping ontology dallies, and overload protection is carried out to screw tap;
Step 3:After process finishing, the main shaft of control lathe inverts;When overload protection does not occur, screw tap will directly exit spiral shell Hole;When overload protection occurs, under the deboost effect of preloading spring, make ball stud from annular by machine tool chief axis reversion Slot is returned to again in locking skewed slot, and then screw tap is exited screw hole again;Until thrust spring restores initial length, then by screw tap It is extracted out from screw tap retaining sleeve.
9. the self-centering application method for attacking threading device of multifunctional safety described in claim 1, outer for screw die progress to be clamped Screw thread process, it is characterised in that include the following steps:
Step 1:Tailstock tool switching taper shank is inserted into tailstock tool and is fixed, according to external screw thread size to be processed, is adjusted The pretightning force of whole housing screw makes ball stud be acted against under the pretightning force of setting in locking skewed slot, and one processing of reselection is used Screw die, mating screw die reducing sleeve is selected according to the difference of screw die model, by screw die pass through screw die reducing sleeve inserter press from both sides It holds in hole, screwing tool trip bolt, completes fixation of the screw die in tool holding holes, then adjust the axial position of screw die, Until the endoporus of screw die acts against screw rod end to be processed, while ensureing that the decrement of thrust spring is more than mantle fiber stroke;
Step 2:Start lathe, the main shaft of control lathe rotates forward, and thrust spring reversely exports axial thrust, and screw die is made to realize certainly Dynamic feeding, while the amount of feeding is determined by the graduated scale on scale guiding axis;When externally threaded processing resistance is less than the damage of screw die When bad power, does not occur to slide relatively between ball stud and locking skewed slot, lasting rotating torque is provided for screw die by lathe, until Complete externally threaded processing;It, will between ball stud and locking skewed slot when externally threaded processing resistance is more than the damageability of screw die Opposite sliding occurs, the rotating torque that screw die is born is not further added by, until ball stud slides into from locking skewed slot in annular groove, in advance Tight spring is compressed, and tool clamping ontology dallies, and overload protection is carried out to screw die;
Step 3:After process finishing, the main shaft of control lathe inverts, and when overload protection does not occur, screw die will directly exit spiral shell Bar;When overload protection occurs, under the deboost effect of preloading spring, make ball stud from annular by machine tool chief axis reversion Slot is returned to again in locking skewed slot, and then screw die is exited screw rod again;Until thrust spring restores initial length, then by screw die And screw die reducing sleeve takes out from tool holding holes together.
CN201810734413.0A 2018-07-06 2018-07-06 A kind of multifunctional safety is self-centering to attack threading device and application method Pending CN108723518A (en)

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CN110605441A (en) * 2019-08-19 2019-12-24 福建省华银铝业有限公司 Die tool capable of machining cast threads
CN110900721A (en) * 2019-11-26 2020-03-24 江苏刘一刀精密机械有限公司 Drilling equipment for wood working
CN110899869A (en) * 2019-12-29 2020-03-24 南京林业大学 Manual thread machining device for shaft parts
CN111421195A (en) * 2020-03-13 2020-07-17 深圳市创智联科技发展有限公司 Machine threading die chuck for processing external threads
CN111906393A (en) * 2020-07-02 2020-11-10 山东齐鲁电机制造有限公司 Readable automatic stroke tapping and threading device
CN112643156A (en) * 2021-01-07 2021-04-13 金陵科技学院 Automatic feeding threading tool and using method thereof
CN110899869B (en) * 2019-12-29 2024-05-17 南京林业大学 Manual thread machining device for shaft parts

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CN112643156A (en) * 2021-01-07 2021-04-13 金陵科技学院 Automatic feeding threading tool and using method thereof

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