CN104438399B - A kind of drawing die - Google Patents

A kind of drawing die Download PDF

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Publication number
CN104438399B
CN104438399B CN201410726607.8A CN201410726607A CN104438399B CN 104438399 B CN104438399 B CN 104438399B CN 201410726607 A CN201410726607 A CN 201410726607A CN 104438399 B CN104438399 B CN 104438399B
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CN
China
Prior art keywords
core rod
endoporus
locating piece
overcoat
clamping block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410726607.8A
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Chinese (zh)
Other versions
CN104438399A (en
Inventor
韩波
卢强强
曹爱华
韩道玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINAN BAOSHIDA INDUSTRIAL DEVELOPMENT Co Ltd
Original Assignee
JINAN BAOSHIDA INDUSTRIAL DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201410599541 priority Critical
Priority to CN2014105995410 priority
Application filed by JINAN BAOSHIDA INDUSTRIAL DEVELOPMENT Co Ltd filed Critical JINAN BAOSHIDA INDUSTRIAL DEVELOPMENT Co Ltd
Priority to CN201410726607.8A priority patent/CN104438399B/en
Publication of CN104438399A publication Critical patent/CN104438399A/en
Application granted granted Critical
Publication of CN104438399B publication Critical patent/CN104438399B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02Dies; Selection of material therefor; Cleaning thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/16Mandrels; Mounting or adjusting same

Abstract

A kind of drawing mould, including overcoat and core rod, is machined with endoporus in overcoat, and equipped with locating piece and clamping block in endoporus, equipped with core rod in the square hole formed by locating piece and clamping block, described core rod has at least one datum level coordinated with described locating piece.This mould has the advantage that machining accuracy is high, reusing is strong, cost-effective.

Description

A kind of drawing die
Technical field
The present invention relates to hard alloy stretching technique field, especially relate to a kind of high accuracy, core rod removable vertical pulling machine drawing die.
Background technology
In prior art, copper material, steel manufacturer be the general drawing die using Tie Tao tungsten carbide button core rod in producing cold-drawn tubing or bar, owing to the linearity of straight tube or straight rod series products is required height, therefore the ferrum set position degree relative with nib of mould is required the highest, so in mould is processed, the position degree requirement of one endoporus being to ensure that male cone (strobilus masculinus) that ferrum overlaps and ferrum set, two cylindricals being to ensure that hard alloy core rod and the position degree requirement of nib, its core rod of the most common drawing die is non-exchange.
The application for a patent for invention of Application No. 201310455548.0 discloses the wire drawing die of a kind of replaceable core rod, this mould includes steel bushing and core rod, steel bushing is stainless steel, core rod is hard alloy material, use threaded between steel bushing and core rod, offer positioning screw hole structure on steel bushing periphery, coordinate location screw to use, location screw realize the axial and circumferential location between steel bushing and core rod.What this mould emphasis solved is the problem of core rod replacing, but its precision of location only realized by location screw obviously can not meet the needs of high accuracy drawing.
Summary of the invention
It is an object of the invention to overcome shortcoming present in prior art, there is provided a kind of can the drawing mould of convenient changing core rod, required precision after changing for guarantee core rod, locating piece has the datum level coordinated with core rod high accuracy, the technical scheme is that a kind of drawing mould, including overcoat and core rod, it is characterized in that: in described overcoat, be machined with endoporus, equipped with locating piece and clamping block in described endoporus, equipped with described core rod in the square hole formed by described locating piece and clamping block, described core rod has at least one datum level coordinated with described locating piece.
The technical characteristic of the present invention also has: the datum level coordinated with core rod on described locating piece is two, and two datum levels are mutually perpendicular to.
The technical characteristic of the present invention also has: described locating piece is arranged in the endoporus of overcoat by bolt.
The technical characteristic of the present invention also has: described clamping block is two, and two pieces of clamping blocks are fixed in the endoporus of overcoat by fishbolt.
The technical characteristic of the present invention also has: described core rod is hard alloy, and the endoporus of core rod is regular hexagon endoporus.
The technical characteristic of the present invention also has: the diameter of bore of described overcoat is 90mm.
The beneficial effects of the present invention is: 1) this mould can realize the precise match between hard alloy core rod and overcoat, and can change core rod easily, it is achieved the recycling of overcoat on the premise of ensureing required precision;2) locating piece and core rod complete precise match by two orthogonal locating surfaces;3) this mould has the advantage that machining accuracy is high, reusing is strong, cost-effective.
Accompanying drawing explanation
Accompanying drawing 1 is present configuration schematic diagram, and accompanying drawing 2 is overcoat front view, and accompanying drawing 3 is the left view of accompanying drawing 2, accompanying drawing 4 is the structural representation of locating piece, and accompanying drawing 5 is the A-A sectional view of accompanying drawing 4, and accompanying drawing 6 is the front view of clamping block, accompanying drawing 7 is the left view of accompanying drawing 6, and accompanying drawing 8 is the structural representation of core rod.Wherein, 1 is overcoat, and 2 is core rod, and 3 is locating piece, and 4 is clamping block, and 5 is hole, location, and 6 is holes for clamping.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is illustrated.The invention discloses a kind of drawing mould, including overcoat 1 and the core rod 2 being placed in overcoat 1, it is machined with endoporus in overcoat 1, equipped with locating piece 3 and clamping block 4 in endoporus, equipped with core rod 2 in the square hole collectively formed by locating piece 3 and clamping block 4, locating piece 3 is arranged in the endoporus of overcoat by the bolt being positioned in hole 4, location.Pretightning force is delivered on core rod 2 by clamping block 4 by the fishbolt being positioned in holes for clamping 6, thus ensures that the pretightning force that core rod 2 is subject to is uniform, prevents rupturing of core rod 2.For the needs of positioning precision, core rod 2 has at least one datum level coordinated with locating piece 3.This place core rod 2 is hard alloy core rod, and the endoporus of core rod 2 is regular hexagon endoporus.
In the present embodiment, the datum level that locating piece 3 coordinates with core rod 2 is two, and two datum levels are mutually perpendicular to;Clamping block 4 is two, and two pieces of clamping blocks 4 are fixed in the endoporus of overcoat 1 by fishbolt.
As a example by drawing mould needed for the length of side regular hexagon copper rod as 10mm, the present invention is specifically described.
1) one external diameter of processing be Φ 120mm, thickness be the 40mm ferrum set overcoat 1 as present embodiment, and process the endoporus of Φ 90mm, its outlet diameter is Φ 25mm, processes the holes for clamping 6 in the hole 5 and M6, location of M6 on overcoat 1;
2) locating and machining block 3, locating piece 3 thickness be 25mm, R be 45mm, and the position perforate in hole 5, corresponding location, datum level A and B controls in 0.05mm relative to endoporus center degree deviation;
3) locating piece 3 is fixed in overcoat 1 by M6 hexagon socket head cap screw, and makes the arc surface of locating piece 3 and the inner hole surface of overcoat closely cooperate, core rod 2 and clamping block 4 are assembled together, and by M6 hexagon socket head cap screw, clamping block is compressed;
Its linearity of copper rod of the regular hexagon copper rod drawing mould processing of process and assemble reaches more than 0.5mm/m according to the method described above.
Certainly, described above not limitation of the present invention, the present invention is also not limited to the example above, change that those skilled in the art are made in the essential scope of the present invention, retrofits, adds or replaces, and falls within protection scope of the present invention.

Claims (3)

1. a drawing mould, including overcoat and core rod, it is characterized in that: in described overcoat, be machined with endoporus, equipped with locating piece and clamping block in described endoporus, equipped with described core rod in the square hole formed by described locating piece and clamping block, described core rod has at least one datum level coordinated with described locating piece, and the datum level that described locating piece coordinates with core rod is two, two datum levels are mutually perpendicular to, and described locating piece is arranged in the endoporus of overcoat by bolt,Described clamping block is two, and two pieces of clamping blocks are fixed in the endoporus of overcoat by fishbolt.
2. according to the drawing mould described in claim 1, it is characterised in that: described core rod is hard alloy, and the endoporus of core rod is regular hexagon endoporus.
3. according to the drawing mould described in claim 2, it is characterised in that: the diameter of bore of described overcoat is 90mm.
CN201410726607.8A 2014-10-31 2014-12-04 A kind of drawing die Active CN104438399B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201410599541 2014-10-31
CN2014105995410 2014-10-31
CN201410726607.8A CN104438399B (en) 2014-10-31 2014-12-04 A kind of drawing die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410726607.8A CN104438399B (en) 2014-10-31 2014-12-04 A kind of drawing die

Publications (2)

Publication Number Publication Date
CN104438399A CN104438399A (en) 2015-03-25
CN104438399B true CN104438399B (en) 2017-01-04

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CN201420751335.2U Active CN204544996U (en) 2014-10-31 2014-12-04 A kind of drawing die

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104438399B (en) * 2014-10-31 2017-01-04 济南宝世达实业发展有限公司 A kind of drawing die
CN105414222A (en) * 2015-10-27 2016-03-23 山东中佳新材料有限公司 Opening type drawing die for reducing pipes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB549407A (en) * 1941-08-26 1942-11-19 Frederick Charles Jearum Improvements in the setting of diamond or sintered or fused carbide or like hard dies
GB1399597A (en) * 1971-06-24 1975-07-02 Ross P M Drawing die assemblies
CN202219272U (en) * 2011-07-08 2012-05-16 浙江海亮股份有限公司 Cobwebbing wire drawing die
CN103495615A (en) * 2013-09-30 2014-01-08 苏州益群模具有限公司 Wire drawing die capable of replacing die core
CN203711505U (en) * 2014-01-15 2014-07-16 奥盛新材料股份有限公司 Cold assembly mould sleeve
CN204544996U (en) * 2014-10-31 2015-08-12 济南宝世达实业发展有限公司 A kind of drawing die

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB549407A (en) * 1941-08-26 1942-11-19 Frederick Charles Jearum Improvements in the setting of diamond or sintered or fused carbide or like hard dies
GB1399597A (en) * 1971-06-24 1975-07-02 Ross P M Drawing die assemblies
CN202219272U (en) * 2011-07-08 2012-05-16 浙江海亮股份有限公司 Cobwebbing wire drawing die
CN103495615A (en) * 2013-09-30 2014-01-08 苏州益群模具有限公司 Wire drawing die capable of replacing die core
CN203711505U (en) * 2014-01-15 2014-07-16 奥盛新材料股份有限公司 Cold assembly mould sleeve
CN204544996U (en) * 2014-10-31 2015-08-12 济南宝世达实业发展有限公司 A kind of drawing die

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Publication number Publication date
CN204544996U (en) 2015-08-12
CN104438399A (en) 2015-03-25

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