CN203664498U - Spiral steel strip forming die - Google Patents

Spiral steel strip forming die Download PDF

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Publication number
CN203664498U
CN203664498U CN201320854394.8U CN201320854394U CN203664498U CN 203664498 U CN203664498 U CN 203664498U CN 201320854394 U CN201320854394 U CN 201320854394U CN 203664498 U CN203664498 U CN 203664498U
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CN
China
Prior art keywords
connector
steel band
die
movable mold
shaft
Prior art date
Application number
CN201320854394.8U
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Chinese (zh)
Inventor
高立义
Original Assignee
广州科技职业技术学院
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Application filed by 广州科技职业技术学院 filed Critical 广州科技职业技术学院
Priority to CN201320854394.8U priority Critical patent/CN203664498U/en
Application granted granted Critical
Publication of CN203664498U publication Critical patent/CN203664498U/en

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Abstract

The utility model provides a spiral steel strip forming die. The spiral steel strip forming die comprises a fixed die, a spiral movable die, a cardan joint assembly, a locating taper pin, a locking nut and a guide pressing plate. The fixed die comprises a rotary shaft portion and a spiral protruding portion, the protruding portion is integrally formed outside of the rotary shaft portion, the outer side end of the rotary shaft portion is matched with an ejector pin of a tailstock of a machine tool, and the fixed die is provided with a clamping groove for clamping the starting end of a spiral steel strip. The movable die is connected with the rotary shaft portion in a sleeved mode, and a spiral groove with the same shape as the spiral steel strip is formed in a gap between the side face of the movable die and the side face of the protruding portion. The cardan joint assembly is connected to the inner side end of the rotary shaft portion and is used for being connected with a chuck of the machine tool. The locating taper pin penetrates through the fixed die and the movable die in the radial direction. The locking nut is in threaded connection with the outer side end of the rotary shaft portion and used for pressing the outer side end of the movable die. The guide pressing plate is fixed to a tool rest of the machine tool. The lower surface of the guide pressing plate is provided with a guide groove. Through the spiral steel strip forming die, quick demoulding of the spiral steel strip can be achieved, the machining procedures of the spiral steel strip are simplified, and the machining efficiency is improved.

Description

Helical steel band finishing die
Technical field
The utility model relates to a kind of shaping dies, is specifically related to a kind of helical steel band finishing die.
Background technology
Helical steel band is widely used in spiral and pushes in feeding or rabbling mechanism, for example, the auger of existing device for treating sludge normally comprises a shaft and the spiral winding hurricane band in shaft outside, at present, auger adopts two kinds and shapes mode, one is casting integrated shaping, another kind is to process respectively rotating shaft and hurricane band as shown in Figure 1, afterwards hurricane band is welded in rotating shaft, its Design of Dies of the mode of cast form and manufacturing cost are higher, structure heaviness, therefore, adopt the auger of welding forming by a large amount of employings.
The hurricane band of above-mentioned auger needs the steel band that intensity is higher conventionally, it is by ribbon spiral bending forming, in process, adopt the mode being shaped with existing spring, add man-hour, chuck is fixed in mould one end, the other end is pressed by the thimble of tail stock top, make the central shaft of mould and the axis of lathe consistent, one end of steel band is fixed on to mould one end, steel band is embedded into the helicla flute of mold outer surface, starts lathe, makes mold rotation, under outside pressure, steel band is the winding shaping at mold outer surface spiral according to spiral fluted track.Although this processing mode can make helical steel band Quick-forming, be stuck in helicla flute because 3 D deformation has occurred steel band in helical form bending forming process, make the helical steel band cannot the demoulding from mould.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of helical steel band finishing die, and it can be convenient to the fast demoulding of helical steel band, simplifies the process of helical steel band, improves working (machining) efficiency.
For achieving the above object, the utility model adopts following technical scheme:
Helical steel band finishing die, comprises,
Fixed die, it comprises shaft and is integrally formed in the outside spiral jut of shaft, the outboard end of shaft coordinates with the tailstock center of lathe, is provided with one for clamping the draw-in groove of helical steel band initiating terminal on fixed die;
Spiral movable mold, this movable mold is socketed on shaft, and the gap between the side of movable mold and the side of jut forms a helicla flute consistent with helical steel band shape;
Be connected in the cardan universal joint component of shaft medial extremity, and this cardan universal joint component is for being connected with the chuck of lathe;
Radially be connected to the locating taper pin in fixed die and movable mold;
Be screwed onto the outboard end of shaft and for pushing up the locking nut of pressing movable mold outboard end;
Be fixed on the guiding pressing plate on lathe saddle, this guiding pressing plate lower surface offers gathering sill.
Outside locking nut and movable mold, between end face, be also provided with a U-shaped open washer.
The side that is positioned at draw-in groove on fixed die is also provided with a bolt hole, and in this bolt hole, cross-under has one to press the top of helical steel band initiating terminal to press bolt for pushing up.
On fixed die, be also provided with one for dodging the recess of top pressure bolt.
Cardan universal joint component comprises the first connector for being fixed by lathe chuck, and the second connector of being connected as a single entity of shaft medial extremity and the 3rd connector between the first connector and the second connector, the first connector and the 3rd connector are rotationally connected by a vertical pivot, and the second connector and the 3rd connector are rotationally connected by a horizontal pivot.
The 3rd connector face relative with the second connector forms a spacing inclined-plane.
The beneficial effects of the utility model are:
Than prior art, the mode that the utility model adopts the movable mold of spiral to coordinate with fixed die, solved the problem of helical steel band " easy demoulding difficulty is shaped ", and realized the fast demoulding of helical steel band, simplified helical steel band process, improved working (machining) efficiency; Meanwhile, the utility model also has simple in structure, the advantage of low production cost.
Brief description of the drawings
Fig. 1 is the structural representation that needs the helical steel band being shaped;
Fig. 2 is the structural representation of the utility model helical steel band finishing die;
Wherein: 10, fixed die; 11, shaft; 12, jut; 13, draw-in groove; 14, recess; 15, bolt hole; 16, bolt is pressed on top; 20, movable mold; 30, helicla flute; 40, guiding pressing plate; 41, gathering sill; 50, cardan universal joint component; 51, the first connector; 52, the 3rd connector; 53, the second connector; 54, vertical pivot; 55, horizontal pivot; 60, locking nut; 61, U-shaped open washer; 70, locating taper pin.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:
As shown in Figure 2, for a kind of helical steel band finishing die of the present utility model, it comprises fixed die 10, movable mold 20, cardan universal joint component 50, locating taper pin 70, locking nut 60, guiding pressing plate 40, wherein, fixed die 10 comprises shaft 11 and is positioned at the outside spiral jut 12 of shaft 11, on fixed die 10, be also provided with one for clamping the draw-in groove 13 of helical steel band initiating terminal, this draw-in groove 13 is arranged on the medial end of fixed die 10; Movable mold 20 in the shape of a spiral, it is similar to the shape of jut 12, being socketed on shaft 11 of movable mold 20 activities, and between the side of the side of movable mold 20 and jut 12, form a helicla flute 30, this helicla flute 30 is consistent with the shape of helical steel band to be processed, movable mold 20, in the time being socketed mutually with fixed die 10, is inserted in movable mold 20 from the horizontal by the outboard end of the fixed die 10 at 15 ° of oblique angles, and movable mold 20 can automatically screw according to helical trajectory under self gravitation effect.Cardan universal joint component 50 is connected to the medial end of shaft 11, and it can rotate for being connected with the chuck of lathe the assembly that fixed die 10 and movable mold 20 form in horizontal plane and perpendicular.Locating taper pin 70 is connected in the cone pin hole of fixed die 10 and movable mold 20 relevant positions settings, realizes the axial location of fixed die 10 and movable mold 20; 60 of locking nuts are screwed in the outboard end of shaft 11, compress movable mold 20 by U-shaped open washer 61, this locking nut 60 coordinates with locating taper pin 70 by U-shaped open washer 61, fixed die 10 and movable mold 20 are fixed together, form the even helicla flute 30 with the consistency of thickness of helical steel band to be processed.Guiding pressing plate 40 is fixed on the knife rest of lathe, on the lower surface of guiding pressing plate 40, offers a gathering sill 41, the width of this gathering sill 41 and the consistency of thickness of helical steel band, and its oblique angle at horizontal plane inner projection is consistent with the helical angle of helicla flute 30.
The utility model in use, cardan universal joint component 50 is fixed on lathe chuck, first movable mold 20 is screwed in to the outboard end of fixed die 10, then the outboard end of fixed die 10 is raised to certain angle, movable mold 20 helical trajectory along jut 12 under self gravitation effect glides end to the inside fast, after movable mold 20 coordinates with fixed die 10 and puts in place, utilize locating taper pin 70 rapidly in the cone pin hole of cross-under its two, make movable mold 20 and fixed die 10 axial location, recycling locking nut 60 is locked movable mold 20 by U-shaped open washer 61, movable mold 20 and fixed die 10 are fixed together, finally rotate fixed die 10, make its central shaft consistent with lathe spindle, mobile tail stock, the outside portion that utilizes the thimble on tailstock to withstand fixed die 10 shafts 11, follow rest is to helicla flute 30 section starts of lathe chuck direction afterwards, make to be fixed on the tangential direction that gathering sill 41 on the guiding pressing plate 40 on knife rest is in helicla flute 30, when shaping, the initiating terminal of steel band is installed in draw-in groove 13, tightens top and press bolt 16, steel band is fixed on fixed die 10, start lathe, when driving fixed die 10 and movable mold 20 to rotate, guiding pressing plate 40 is along with knife rest moves axially, thereby makes the free end of steel band under the acting in conjunction of helicla flute 30 and the pressing plate 40 that leads, and twists into helical steel band.After shaping completes, follow rest, to lathe chuck place, unscrews locking nut 60, extracts U-shaped open washer 61 out, extracts locating taper pin 70, and movable mold 20 is in complete free state; Now, hold the outboard end of fixed die 10, exit tail stock thimble, fixed die 10 is turned an angle towards operator in the horizontal direction, to lower swing fixed die 10, movable mold 20 and helical steel band, under the effect of self gravitation, pass locking nut 60 along helical trajectory afterwards, skid off downwards from fixed die 10, realized fast demoulding.
In above-mentioned structure, the maximum diagonal-size of locking nut 60 is less than the interior hole dimension of movable mold 20, has realized not and need just can take off fast the requirement of movable mold 20 from shaft 11 locking nut 60 of dismantling; But between locking nut 60 and the outside end face of movable mold 20, a U-shaped open washer 61 is set, its outside dimension is greater than the outside dimension of movable mold 20 for this reason.On the shaft that is plugged on fixed die 10 11 of U-shaped open washer 61 activities, in the time screwing locking nut 60, by the outside end face of U-shaped open washer 61 Compressive activities moulds 20, make movable mold 20 and fixed die 10 be combined into an entirety.
For the initiating terminal that prevents steel band ejects from draw-in groove 13 due to elastic force effect in process, a bolt hole 15 is offered in the side that is also positioned at draw-in groove 13 on fixed die 10, one top is housed in this bolt hole 15 and presses bolt 16, the initiating terminal of steel band is packed into after draw-in groove 13, can screw top and press bolt 16, make top press the top of bolt 16 to push down the initiating terminal of steel band; Certainly,, for the ease of processing bolt hole 15, be provided with a recess 14 in the position of fixed die 10 upper bolt holes 15.In the time screwing top pressure bolt 16, this recess 14 is pressed bolt 16 for dodging top.
Cardan universal joint component 50 comprise for and fixing the first connector 51 of lathe chuck, and the second connector 53 of being connected as a single entity of shaft 11 medial extremitys and the 3rd connector 52 between the first connector 51 and the second connector 53, the first connector 51 and the 3rd connector 52 are rotationally connected by a vertical pivot 54, and the second connector 53 and the 3rd connector 52 are rotationally connected by a horizontal pivot 55; The face that the 3rd connector 52 is relative with the second connector 53 forms a spacing inclined-plane, thereby the second connector 53 only can be rotated in the angular range of a restriction with respect to the 3rd connector 52, in general, can limit the second connector 53 is 12 ° with respect to the maximum rotation angle of the 3rd connector 52, be that fixed die 10 only can rotate 12 °, thereby while preventing the demoulding, movable mold 20 smash lathe.
to one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.

Claims (6)

1. helical steel band finishing die, is characterized in that, comprise,
Fixed die, it comprises shaft and is integrally formed in the outside spiral jut of shaft, the outboard end of shaft coordinates with the tailstock center of lathe, is provided with one for clamping the draw-in groove of helical steel band initiating terminal on fixed die;
Spiral movable mold, this movable mold is socketed on shaft, and the gap between the side of movable mold and the side of jut forms a helicla flute consistent with helical steel band shape;
Be connected in the cardan universal joint component of shaft medial extremity, and this cardan universal joint component is for being connected with the chuck of lathe;
Radially be connected to the locating taper pin in fixed die and movable mold;
Be screwed onto the outboard end of shaft and for pushing up the locking nut of pressing movable mold outboard end;
Be fixed on the guiding pressing plate on lathe saddle, this guiding pressing plate lower surface offers gathering sill.
2. helical steel band finishing die as claimed in claim 1, is characterized in that, is also provided with a U-shaped open washer outside locking nut and movable mold between end face.
3. helical steel band finishing die as claimed in claim 1, is characterized in that, the side that is positioned at draw-in groove on fixed die is also provided with a bolt hole, and in this bolt hole, cross-under has one to press the top of helical steel band initiating terminal to press bolt for pushing up.
4. helical steel band finishing die as claimed in claim 3, is characterized in that, is also provided with one for dodging the recess of top pressure bolt on fixed die.
5. helical steel band finishing die as claimed in claim 1, it is characterized in that, cardan universal joint component comprises the first connector for being fixed by lathe chuck, and the second connector of being connected as a single entity of shaft medial extremity and the 3rd connector between the first connector and the second connector, the first connector and the 3rd connector are rotationally connected by a vertical pivot, and the second connector and the 3rd connector are rotationally connected by a horizontal pivot.
6. helical steel band finishing die as claimed in claim 5, is characterized in that, the 3rd connector face relative with the second connector forms a spacing inclined-plane.
CN201320854394.8U 2013-12-23 2013-12-23 Spiral steel strip forming die CN203664498U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320854394.8U CN203664498U (en) 2013-12-23 2013-12-23 Spiral steel strip forming die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320854394.8U CN203664498U (en) 2013-12-23 2013-12-23 Spiral steel strip forming die

Publications (1)

Publication Number Publication Date
CN203664498U true CN203664498U (en) 2014-06-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785674A (en) * 2015-04-30 2015-07-22 重庆望江工业有限公司 Large-pitch spiral track body machining device
CN106140909A (en) * 2016-08-18 2016-11-23 重庆环际低碳节能技术开发有限公司 A kind of spiral type connects the big end spiral forming frock of sheet
CN106356148A (en) * 2016-10-25 2017-01-25 常熟共益信息科技有限公司 Simple structure mould for manufacturing spring armor layer
CN106373660A (en) * 2016-10-25 2017-02-01 常熟共益信息科技有限公司 Manufacturing method for optic and electric composite cable adopting spring armor structure
CN106964944A (en) * 2017-04-22 2017-07-21 杨松 The preparation method that a kind of utilization solid waste granulates special prestressing force extrusion screw rod
CN107014266A (en) * 2017-03-06 2017-08-04 中国科学院合肥物质科学研究院 A kind of high accuracy suitable for high-temperature superconductor band application technology reverses miniature clamp structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785674A (en) * 2015-04-30 2015-07-22 重庆望江工业有限公司 Large-pitch spiral track body machining device
CN104785674B (en) * 2015-04-30 2017-05-31 重庆望江工业有限公司 A kind of processing unit (plant) of screw with long screw pitch track body
CN106140909A (en) * 2016-08-18 2016-11-23 重庆环际低碳节能技术开发有限公司 A kind of spiral type connects the big end spiral forming frock of sheet
CN106356148A (en) * 2016-10-25 2017-01-25 常熟共益信息科技有限公司 Simple structure mould for manufacturing spring armor layer
CN106373660A (en) * 2016-10-25 2017-02-01 常熟共益信息科技有限公司 Manufacturing method for optic and electric composite cable adopting spring armor structure
CN106373660B (en) * 2016-10-25 2017-11-24 苏水万 A kind of manufacture method of spring sheathed structure optoelectrical cable
CN107014266A (en) * 2017-03-06 2017-08-04 中国科学院合肥物质科学研究院 A kind of high accuracy suitable for high-temperature superconductor band application technology reverses miniature clamp structure
CN106964944A (en) * 2017-04-22 2017-07-21 杨松 The preparation method that a kind of utilization solid waste granulates special prestressing force extrusion screw rod

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