CN1669698A - three-shaft double-thread rolling device - Google Patents
three-shaft double-thread rolling device Download PDFInfo
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- CN1669698A CN1669698A CN 200510200134 CN200510200134A CN1669698A CN 1669698 A CN1669698 A CN 1669698A CN 200510200134 CN200510200134 CN 200510200134 CN 200510200134 A CN200510200134 A CN 200510200134A CN 1669698 A CN1669698 A CN 1669698A
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- cylindrical die
- thread
- thread rolling
- workpiece
- screw
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- 238000005096 rolling process Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 238000012856 packing Methods 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 10
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
A three-axis double-thread rolling device comprises a shell, a worm wheel, a worm and three thread rolling wheels, wherein an outer gear ring of the worm wheel is meshed with the worm, an inner gear ring of the worm wheel is meshed with a gear at the end of a crankshaft, the number of the thread rolling wheels is three, the three crankshaft are respectively sleeved on a shaft, the three thread rolling wheels are uniformly arranged on a distribution circle of the three thread rolling wheels according to 120 degrees, and the three thread rolling wheels have relative position difference along the axial direction, and the value of the relative position difference is 1/3 lead of a thread of a workpiece or 1/3 pitch of the thread of the workpiece; the central space tangent to and enclosing the thread rolling wheel is the position of the processed steel bar, and each crankshaft has an inclination angle relative to the axis of the processed steel bar, and the inclination angle is the inverse tangent of the quotient of the lead of the double-start thread and the circumference of the thread. The invention solves the problem of processing the double-thread of the steel bar with smaller diameter, improves the working efficiency, greatly accelerates the connection speed of the steel bar joint and prolongs the service life of the thread rolling wheel.
Description
(1) technical field
The present invention relates to a kind of screw thread steel rolled thread device.
(2) background technology
In reinforced concrete works, the normal method that is threaded that adopts of the connection of reinforcing bar.Existing screw thread steel process equipment generally comprises frame and head, the major part of head is a screw thread rolled thread device, this device has a worm gear in the enclosure, worm gear external toothing and worm engaging, the gears engaged of the ring gear of worm gear and four or three crankshaft ends, be with cylindrical die roll on the bent axle, use above-mentioned worm gear, the cylindrical die roll of worm screw and different-diameter is adjusted each crankshaft center distance, make itself and workpiece tangent, so that the reinforcing wire head of processing different-diameter, and the inclination angle of pressing the pitch decision bent axle of workpiece, said apparatus can only process one start screw, and working (machining) efficiency and reinforcing bar connection speed are all lower.Application number provides a kind of double end or three-start screw rolled thread device for 200410047901.2 patent application, working (machining) efficiency and reinforcing bar connection speed have been improved, when but this patent of invention is made double thread, be with two cylindrical die rolls and two four rolled thread devices that jockey pulley interval 90 degree are evenly arranged, because cylindrical die roll and jockey pulley are subjected to the control of its intensity and life requirement, diameter can not be done very for a short time, so the central space that four wheels forms is bigger, can't process the reinforcing bar than minor diameter.
(3) summary of the invention
The purpose of this invention is to provide a kind of triaxial double thread rolling equipment, be used to process end reinforced double thread, solve existing splice process equipment and can only process reinforcing bar one start screw joint, working (machining) efficiency is low, connection speed is slow technical problem; Also solve the difficult problem of the less diameter reinforcing bar double thread of processing.
The technical scheme of triaxial double thread rolling equipment of the present invention: it comprises shell, worm gear, worm screw, cylindrical die roll, worm gear external toothing and worm engaging, the ring gear of worm gear and the engagement of the end gear of bent axle, eccentric part is with cylindrical die roll, it is characterized in that: its bent axle is three, is with cylindrical die roll on the axle respectively, and three cylindrical die rolls are evenly arranged by 120 degree on its distribution circle, three cylindrical die rolls have relative position poor vertically, and its value is the helical pitch of 1/3 workpiece screw thread or the pitch of 1/3 workpiece screw thread; Central space tangent with cylindrical die roll and that surround is processed reinforcing bar position, and each bent axle has an inclination angle with respect to the axis of processed reinforcing bar, and the angle at inclination angle is the arc tangent that the helical pitch of double thread is removed the merchant of screw thread girth.
Be θ=arctan (P1/ π D2);
Wherein P1 is the workpiece lead;
D2 is the workpiece pitch diameter of thread.
The roller box is housed in the above-mentioned shell.
Above-mentioned shell or roller box by protecgulum, support in ring and bonnet combine, be connected by bolt or screw between protecgulum and the bonnet.
Above-mentioned cylindrical die roll two ends are with the adjustment packing ring of different-thickness, and what make three cylindrical die rolls axially has relative position poor, and the difference of adjusting the thickness of packing ring is 1/3 pitch of processed screw thread steel.
Above-mentioned cylindrical die roll two ends are with the adjustment packing ring of different-thickness, and what make three cylindrical die rolls axially has relative position poor, and the difference of adjusting the thickness of packing ring is 1/3 helical pitch of processed screw thread steel.
Edge, gear ring position on above-mentioned three cylindrical die rolls cylindrical die roll end face separately has the mutual alignment poor, and difference is the helical pitch of 1/3 workpiece or the pitch of 1/3 workpiece mutually.
Three crankshaft holes and three screw holes are arranged on said machine casing or the roller lid, wherein three screw holes have the inclination angle, can be used as standby crankshaft hole in case of necessity, change former crankshaft hole into screw hole simultaneously, the inclination direction of standby crankshaft hole is consistent with the inclination direction of crankshaft hole or opposite.
Above-mentioned each bent axle is θ ± 3 ° with respect to the angle fluctuation scope of the inclination angle [theta] of processed reinforcing bar axis.
The refill-unit of above-mentioned bent axle is a knife rest, and the refill-unit of cylindrical die roll is a cutting tool, and the axial location of three secondary cutting tools differs the helical pitch of 1/3 workpiece screw thread or the pitch of 1/3 workpiece screw thread.
Beneficial effect: the device that the invention provides three cylindrical die roll processing of a kind of usefulness double thread, because the central space that three cylindrical die rolls of apparatus of the present invention surround when tangent is less, therefore can process reinforcing bar than minor diameter, solved a difficult problem of processing less diameter reinforcing bar double thread, and will make double end, bull and one start screw and unify to be a kind of three rolled thread devices, can reduce device size, improve the cylindrical die roll life-span.Standby crankshaft hole is set, can adopts another group inclination angle or incline direction, help improving accuracy of thread and make left-handed or right-handed thread to adapt to the requirement of another kind of processing work.Adjust packing ring and can conveniently adjust the axial location of three cylindrical die rolls.Owing to jockey pulley need be set, simplified device structure greatly, can realize processing double thread or the single head and the three-start screw of different large and small diameter reinforcing bars, compare with three that use always at present or four one start screw rolled thread devices, when the present invention is used for being threaded of reinforcing bar, the process velocity of end reinforced screw thread and the connection speed of job site reinforcing bar are doubled in pairs.The present invention is applicable to the splice of the double thread of the various diameter reinforcing bars of processing.
(4) description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the A-O-B profile of Fig. 1;
Fig. 3 is the A-O-C profile of Fig. 1.
Fig. 4 is the schematic diagram of workpiece thread helix angle θ '.
Fig. 5 is the box-packed structural representation in shell of cylindrical die roll of the present invention.
Fig. 6 is the structural representation of the embodiment of the invention two;
Fig. 7 is the A-O-B profile of Fig. 6.
Ring, 6-bonnet, 7-cylindrical die roll, 8-worm gear, 9-worm screw, 10-axle sleeve, 11-adjusted packing ring, 12-roller box, 13-bent axle, the gear of 14-crankshaft end, 15-shell, 16-screw hole, 17-crankshaft hole during 1-screw, 2-A screw base, 3-protecgulum, 4-B screw base, 5-supported.
(5) specific embodiment
Embodiment one is referring to Fig. 1,2,3,5, the roller box 12 of this triaxial double thread rolling equipment has a worm gear 8, worm gear external toothing and worm screw 9 engagements, gear 14 engagements of the ring gear of worm gear and bent axle 13 ends, the bent axle middle part is eccentric shape, three bent axle middle parts are with cylindrical die roll 7 respectively, and cylindrical die roll is evenly arranged by 120 degree on its distribution circle.
Roller box 12 by protecgulum 3, support in ring 5 and bonnet 6 combine, be connected by screw 1 between protecgulum and the bonnet.A screw base 2 and B screw base 4 are arranged on above-mentioned protecgulum and the bonnet, and screw is fixedlyed connected with the B screw base through the A screw base.
Three crankshaft holes 17 and three screw holes 16 are arranged on the position of cylindrical die roll 7 and screw 1 on the above-mentioned rollers box, and wherein three screw holes have the inclination angle, are standby crankshaft hole, and the inclination direction of standby crankshaft hole is consistent with the inclination direction of bent axle or opposite.Can utilize it to do double end left hand thread, also can only regulate the inclination angle that this organizes standby axis hole, satisfy of the requirement of different-diameter reinforcing bar, improve accuracy of thread the cylindrical die roll inclination angle.
Double thread processing: three cylindrical die rolls have relative position poor vertically, and its value is the helical pitch of 1/3 workpiece screw thread or the pitch of 1/3 workpiece screw thread; Above-mentioned cylindrical die roll two ends are with the adjustment packing ring 11 of different-thickness, and what make three cylindrical die rolls axially has relative position poor, and the difference of adjusting the thickness of packing ring is 1/3 pitch or 1/3 helical pitch of processed screw thread steel.
The present invention also can be used for three-start screw processing: do not have the discrepancy in elevation between three pairs of packing rings, the inclination angle of cylindrical die roll is pressed the helical pitch of three-start screw and is calculated.
Three cylindrical die rolls are the another kind of practice of relative position difference vertically: the gear ring position on three cylindrical die rolls has the mutual alignment poor along cylindrical die roll end face separately, and mutual difference is the helical pitch of 1/3 workpiece or the pitch of 1/3 workpiece.
Central space tangent with cylindrical die roll and that surround is processed reinforcing bar position, and each bent axle has an inclination angle [theta] with respect to the axis of processed reinforcing bar, and its angle is the arc tangent that the helical pitch of double thread is removed the merchant of screw thread girth.
θ＝arctan(P1/πD2)。
Referring to Fig. 4, θ ' is workpiece thread helix angle; P1 is the workpiece lead.P2 is the workpiece thread pitch; D2 is the workpiece pitch diameter of thread.
The inclination angle [theta] of bent axle equals workpiece thread helix angle θ ', and the fluctuation range of θ angle is θ ± 3 °.
Referring to Fig. 5, roller box 12 is contained in the shell 15.
Embodiment two omits the roller box referring to Fig. 6,7 in the shell 15, other is similar to embodiment one.
The course of work of the present invention: use the adjusting lever that is complementary with processed reinforcing bar to insert centre bore earlier, the centre-to-centre spacing of utilizing worm gear, worm screw to set up cylindrical die roll makes it be fit to the thread size of processed reinforcing bar.Take out adjusting lever, processed reinforcing bar is sent in the centre bore, machine is opened, and when head rotated, cylindrical die roll rotated and can rolling go out the double thread of requirement around processed reinforcing bar; When needs are processed the screw thread of other pitch, the cylindrical die roll of replaceable corresponding pitch and adjustment packing ring, and utilize worm gear, worm screw to regulate bent axle apart from realizing.When needs processing left hand thread, the standby crankshaft hole that can utilize another group to process by the left hand thread inclination angle is installed cylindrical die roll and is adjusted packing ring and realize.
The principle of apparatus of the present invention also is applicable to cutting process making double thread, only needs above-mentioned bent axle is replaced with knife rest, and cylindrical die roll replaces with cutting tool, and the helical pitch that the axial location of three secondary cutting tools differs 1/3 workpiece screw thread gets final product.
Claims (9)
1, a kind of triaxial double thread rolling equipment, comprise shell, worm gear, worm screw, cylindrical die roll, worm gear external toothing and worm engaging, the ring gear of worm gear and the gears engaged of crankshaft end, cylindrical die roll is enclosed within on the bent axle, it is characterized in that: its bent axle is three, be with cylindrical die roll on the axle respectively, three cylindrical die rolls arrange evenly that by 120 degree three cylindrical die rolls have relative position poor vertically on its distribution circle, its value is the helical pitch of 1/3 workpiece screw thread or the pitch of 1/3 workpiece screw thread; Central space tangent with cylindrical die roll and that surround is processed reinforcing bar position, and each bent axle has an inclination angle with respect to the axis of processed reinforcing bar, and the angle at inclination angle is the arc tangent that the helical pitch of double thread is removed the merchant of screw thread girth.
2, three multiple thread rolled thread devices according to claim 1 is characterized in that: the roller box is housed in the above-mentioned shell.
3, triaxial double thread rolling equipment according to claim 1 and 2 is characterized in that: above-mentioned shell or roller box by protecgulum, support in ring and bonnet combine, be connected by bolt or screw between protecgulum and the bonnet.
4, triaxial double thread rolling equipment according to claim 1 and 2, it is characterized in that: above-mentioned cylindrical die roll two ends are with the adjustment packing ring of different-thickness, what make three cylindrical die rolls axially has relative position poor, and the difference of adjusting the thickness of packing ring is 1/3 pitch of processed screw thread steel.
5, triaxial double thread rolling equipment according to claim 1 and 2, it is characterized in that: above-mentioned cylindrical die roll two ends are with the adjustment packing ring of different-thickness, what make three cylindrical die rolls axially has relative position poor, and the difference of adjusting the thickness of packing ring is 1/3 helical pitch of processed screw thread steel.
6, triaxial double thread rolling equipment according to claim 1 and 2 is characterized in that: the edge, gear ring position on above-mentioned three cylindrical die rolls cylindrical die roll end face separately has the mutual alignment poor, and difference is the helical pitch of 1/3 workpiece or the pitch of 1/3 workpiece mutually.
7, triaxial double thread rolling equipment according to claim 1 and 2, it is characterized in that: three crankshaft holes and three screw holes are arranged on said machine casing or the roller lid, wherein three screw holes have the inclination angle, be standby crankshaft hole, the inclination direction of standby crankshaft hole is consistent with the inclination direction of crankshaft hole or opposite.
8, triaxial double thread rolling equipment according to claim 1 and 2 is characterized in that: above-mentioned each bent axle is θ ± 30 with respect to the angle fluctuation scope of the inclination angle [theta] of processed reinforcing bar axis.
9, triaxial double thread rolling equipment according to claim 1 and 2, it is characterized in that: the refill-unit of above-mentioned bent axle is a knife rest, the refill-unit of cylindrical die roll is a cutting tool, and the axial location of three secondary cutting tools differs the helical pitch of 1/3 workpiece screw thread or the pitch of 1/3 workpiece screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200134 CN1669698A (en) | 2005-03-11 | 2005-03-11 | three-shaft double-thread rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200134 CN1669698A (en) | 2005-03-11 | 2005-03-11 | three-shaft double-thread rolling device |
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| Publication Number | Publication Date |
|---|---|
| CN1669698A true CN1669698A (en) | 2005-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510200134 Pending CN1669698A (en) | 2005-03-11 | 2005-03-11 | three-shaft double-thread rolling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067276A1 (en) * | 2012-11-05 | 2014-05-08 | 宁波镇明转轴有限公司 | Method for manufacturing drive screw |
| CN114570813A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气股份有限公司 | Manufacturing method and manufacturing equipment of screw drill stator and screw drill stator |
-
2005
- 2005-03-11 CN CN 200510200134 patent/CN1669698A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067276A1 (en) * | 2012-11-05 | 2014-05-08 | 宁波镇明转轴有限公司 | Method for manufacturing drive screw |
| CN114570813A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气股份有限公司 | Manufacturing method and manufacturing equipment of screw drill stator and screw drill stator |
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