CN108672631A - Hexagonal cold-extrusion shaping mold and application in a kind of synchronous pulley - Google Patents
Hexagonal cold-extrusion shaping mold and application in a kind of synchronous pulley Download PDFInfo
- Publication number
- CN108672631A CN108672631A CN201810659146.5A CN201810659146A CN108672631A CN 108672631 A CN108672631 A CN 108672631A CN 201810659146 A CN201810659146 A CN 201810659146A CN 108672631 A CN108672631 A CN 108672631A
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- China
- Prior art keywords
- hexagonal
- blank
- mold
- synchronous pulley
- upper punch
- 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.)
- Pending
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- 238000007493 shaping process Methods 0.000 title claims abstract description 31
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000005242 forging Methods 0.000 claims abstract description 5
- 238000005422 blasting Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000007127 saponification reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses hexagonal cold-extrusion shaping mold and its applications in a kind of synchronous pulley, the mold includes shaping mould and extruding hexagonal mold, obtain hexagonal in finished product by the way that blank is sequentially placed into shaping mould and squeezes forging and stamping in hexagonal mold, the technique the specific steps are：Blanking-spheroidizing-ball blast-phospholeum-shaping-extruding hexagonal, hexagonal is without heating in the synchronous pulley obtained by the device and technique, it does not pollute, and substantially increases the performance of interior hexagonal and interior hexagonal precision, improve production efficiency drop cost low with the utilization rate of material.
Description
Technical field
The present invention relates to auto parts machinery production technical field, hexagonal cold-extrusion shaping mold in specifically a kind of synchronous pulley
And its application.
Background technology
Synchronizing wheel transmission is by endless-belt of the inner peripheral surface equipped with equidistant tooth and the belt wheel institute with respective teeth
Composition, when operation, be meshed with tooth with the tooth socket of belt wheel transmission movement and power, and transmission is accurate, and when work is fricton-tight, and transmission is flat
Surely, noise is low；Energy-saving effect is apparent；Maintaining is convenient.
There is hexagonal in existing synchronous pulley is produced using powder metallurgical technique, but due to its formula and technique limitation,
Cause many defects, especially at hexagonal, some has tearing band, hexagonal surface roughness is low, also has using the technique of punching
A small number of producers use machine-tooled method, and processing waste material is more, and powder metallurgy formation is caused very due to its formula and the limitation of technique
More defects, especially at hexagonal, quick abrasion is of high cost.Some has a tearing band using the technique of punching, roughness it is low and
It is difficult control for the thicker interior hexagonal dimensional accuracy of thickness, qualification rate is low, also has a small number of producers to use machine-tooled method, processing
Waste material is more, and performance is low, and fabrication schedule is cumbersome, and qualification rate is low.
Cold extruding technique is a kind of efficient chip processing technology less, and precision is high, after having the forming of higher production efficiency
Higher comprehensive mechanical property and preferable products surface quality can be obtained.As automobile is to high-performance, low cost, low energy consumption
The development in direction, the auto parts for shaping small size or nearly forming complexity only using cold-extrusion technology are current auto manufacturings
Development trend.
Invention content
Goal of the invention：In order to solve the deficiencies in the prior art, the present invention provides hexagonal cold extrusions in a kind of synchronous pulley
Shaping dies and its application, hexagonal is not polluted without heating in the synchronous pulley obtained by the device and technique, and
The performance of interior hexagonal and interior hexagonal precision are substantially increased, production efficiency drop cost low with the utilization rate of material is improved.
Technical solution：In order to achieve the goal above, hexagonal cold-extrusion shaping mould in a kind of synchronous pulley of the present invention
Tool, it includes：Shaping mould and extruding hexagonal mold, are forged by the way that blank to be sequentially placed into shaping mould and squeeze in hexagonal mold
Pressure obtains hexagonal in finished product.
As present invention further optimization, the shaping mould includes cavity plate A, and blank is located at the lower top in cavity plate A
The top of bar A, the upper punch A of blank side.
As present invention further optimization, the extruding hexagonal mold includes：The top of cavity plate B, cavity plate B are equipped with and unload
Flitch B, one end are connected with stripper B, and the nitrogen gas spring B that the other end is connected with convex mould base B, one end is fixed on convex mould base B, separately
One end is threaded through the upper punch B on stripper B.
As present invention further optimization, the end of the upper punch B is equipped with mutually fits with the endoporus of hexagonal in finished product
The shape matched.
As present invention further optimization, the inner surface of the cavity plate B is equipped with six with hexagonal outer surface in finished product
The compatible shape in angle.
Hexagonal cold extrusion technology in a kind of synchronous pulley of the present invention, the technique are as follows：
(a) blanking
Nominal weight cylindrical bar identical with forge weight is selected, sawed-off blanking is then carried out by blanking machine and is obtained
Blank；
(b) spheroidizing
Spheroidizing processing is carried out to the blank after blanking；
(c) ball blast
Spheroidizing treated blank is subjected to Shot Blasting to remove bar table by drum-type shot blasting machine to bar
The oxide skin and attachment in face；
(d) phospholeum
Phosphorus saponification process is carried out to the blank after Shot Blasting；
(e) shaping
By phospholeumization, treated that blank is placed in the cavity plate A of shaping mould, and the upper punch A of blank side is with forcing press
Sliding block moved to the direction of blank, punching press is carried out to blank, the forging and stamping of two end faces of blank are smooth；
(f) hexagonal is squeezed
By the blank after Shape correction be placed on squeeze hexagonal mold cavity plate B in, upper punch B with forcing press sliding block to
Blank direction moves, and the end of upper punch B continues to exert a force to blank after touching blank, and the material of blank is made to flow up, this
When nitrogen gas spring B compressed, upper punch B moves to defined position to squeeze out endoporus and hexagonal to blank, obtains in finished product
Hexagonal, then upper punch B follow sliding block to move upwards, at this time nitrogen gas spring B pop up, drive stripper B by hexagonal in finished product with
Upper punch B is detached from.
Shot-blasting machine is a kind for the treatment of technology by steel sand shot high speed falling impact on objects of material surface by impeller head,
Almost all of steel-casting, grey casting, malleable iron component, G. Iron Castings etc. will carry out Shot Blasting.This is not only for removing casting
Surface scale and scab, while being also indispensable preparatory process before casting quality checks, non-ferrous casting, as aluminium closes
The removing surface of gold, copper alloy etc., except descaling, find casting surface defect in addition to, more main purpose be with throw spray
Ball come remove die casting burr and obtain have decoration meaning surface quality, obtain resultant effect.
Advantageous effect：Hexagonal cold-extrusion shaping mold and its application in a kind of synchronous pulley of the present invention, and it is existing
Technology is compared, and is had the following advantages：
1, by having carried out shaping to material, the Pingdu of outer diameter and two planes is whole to same ruler in forming process
Very little, same precision ensure that the performance of interior hexagonal and interior hexagonal precision；
Inner hole extruding is gone out simultaneously when 2, squeezing hexagonal, ensure that the symmetry requirement of interior hexagonal and internal diameter, it is efficient, it closes
Lattice rate is high；
3, hexagonal upper mold in squeezing, is equipped with nitrogen gas spring, and convenient for demoulding, and stability is good, and the service life is high；
4, it by cold extrusion shaped, without heating, does not pollute.
Description of the drawings
Fig. 1 is the forming process figure of blank；
Fig. 2 is shaping mould full sectional view；
Fig. 3 is the operating diagram for squeezing hexagonal mold.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated.
Hexagonal cold-extrusion shaping mold in a kind of synchronous pulley of the present invention, it includes：Shaping mould 1 and extruding
Hexagonal mold 2 obtains hexagonal in finished product by the way that blank 10 is sequentially placed into shaping mould 1 and squeezes forging and stamping in hexagonal mold 2
100。
As shown in Figure 1, hexagonal cold extrusion technology in a kind of synchronous pulley of the present invention, the specific step of the technique
Suddenly it is：Blanking-spheroidizing-ball blast-phospholeum-shaping-extruding hexagonal.
Embodiment
(a) blanking
Nominal weight cylindrical bar identical with forge weight is selected, sawed-off blanking is then carried out by blanking machine and is obtained
Blank 10；
(b) spheroidizing
Spheroidizing processing is carried out to the blank 10 after blanking；
(c) ball blast
Spheroidizing treated blank 10 is subjected to Shot Blasting to remove bar by drum-type shot blasting machine to bar
The oxide skin and attachment on surface；
(d) phospholeum
Phosphorus saponification process is carried out to the blank 10 after Shot Blasting；
(e) shaping
By phospholeumization, treated that blank 10 is placed in the cavity plate A12 of shaping mould 1, the upper punch A11 of 10 side of blank
It is moved to the direction of blank 10 with the sliding block of forcing press, punching press is carried out to blank 10, two end faces of blank 10 forged and pressed flat
It is whole, as shown in Figure 2；
(f) hexagonal is squeezed
Blank 10 after Shape correction is placed in the cavity plate B25 for squeezing hexagonal mold 2, upper punch B22 is with forcing press
Sliding block moved to 10 direction of blank, the end of upper punch B22 continues to exert a force to blank 10 after touching blank 10, makes blank 10
Material flow up, nitrogen gas spring B23 is compressed at this time, and upper punch B22 moves to defined position to squeeze to blank 10
Go out endoporus and hexagonal, obtain hexagonal 100 in finished product, then upper punch B22 follows sliding block to move upwards, at this time nitrogen gas spring B23
Pop-up drives stripper B24 to be detached from hexagonal in finished product 100 and upper punch B22, as shown in Figure 3.
The technical concepts and features of the above embodiment only to illustrate the invention, the purpose is to allow be familiar with the technical field
Technical staff cans understand the content of the present invention and implement it accordingly, and can not limited the scope of the invention with this.All
The equivalent changes or modifications made according to spirit of the invention, should be covered by the protection scope of the present invention.
Claims (6)
1. hexagonal cold-extrusion shaping mold in a kind of synchronous pulley, which is characterized in that it includes：Shaping mould (1) and extruding six
Angle mold (2) is obtained by the way that blank (10) is sequentially placed into shaping mould (1) and squeezes forging and stamping in hexagonal mold (2) in finished product
Hexagonal (100).
2. hexagonal cold-extrusion shaping mold in a kind of synchronous pulley according to claim 1, it is characterised in that：Described is whole
Shape mold (1) includes (12) cavity plate A, and blank (10) is located at the top of the lower push rod A (13) in cavity plate A (12), blank (10) one
The upper punch A (11) of side.
3. hexagonal cold-extrusion shaping mold in a kind of synchronous pulley according to claim 1, it is characterised in that：Described squeezes
Pressure hexagonal mold (2) include：The top of cavity plate B (25), cavity plate B (25) are equipped with stripper B (24), one end and stripper B (24)
It is connected, the nitrogen gas spring B (23) that the other end is connected with convex mould base B (21), one end is fixed on convex mould base B (21), and the other end is worn
The upper punch B (22) being located on stripper B (24).
4. hexagonal cold-extrusion shaping mold in a kind of synchronous pulley according to claim 1, it is characterised in that：Described is upper
The end of punch B (22) is equipped with shape compatible with the endoporus of hexagonal in finished product (100).
5. hexagonal cold-extrusion shaping mold in a kind of synchronous pulley according to claim 1, it is characterised in that：Described is recessed
The inner surface of mould B (25) is equipped with shape compatible with the hexagonal of hexagonal in finished product (100) outer surface.
6. hexagonal cold extrusion technology in a kind of synchronous pulley, which is characterized in that the technique is as follows：
(a) blanking
Nominal weight cylindrical bar identical with forge weight is selected, sawed-off blanking is then carried out by blanking machine and obtains blank
(10)；
(b) spheroidizing
Spheroidizing processing is carried out to the blank (10) after blanking；
(c) ball blast
Spheroidizing treated blank (10) is subjected to Shot Blasting to remove bar table by drum-type shot blasting machine to bar
The oxide skin and attachment in face；
(d) phospholeum
Phosphorus saponification process is carried out to the blank (10) after Shot Blasting；
(e) shaping
By in the cavity plate A (12) of phospholeumization treated blank (10) is placed on shaping mould (1), the upper punch of blank (10) side
A (11) is moved with the sliding block of forcing press to the direction of blank (10), punching press is carried out to blank (10), by two of blank (10)
End face forging and stamping are smooth；
(f) hexagonal is squeezed
Blank (10) after Shape correction is placed in the cavity plate B (25) for squeezing hexagonal mold (2), upper punch B (22) is with pressure
The sliding block of power machine is moved to blank (10) direction, and the end of upper punch B (22) touches blank (10) and continues afterwards to blank (10)
Force, makes the material of blank (10) flow up, and nitrogen gas spring B (23) is compressed at this time, and upper punch B (22) is transported to blank (10)
It moves to defined position to squeeze out endoporus and hexagonal, obtains hexagonal in finished product (100), then upper punch B (22) follows sliding block
It moves upwards, nitrogen gas spring B (23) is popped up at this time, drives stripper B (24) by hexagonal in finished product (100) and upper punch B (22)
It is detached from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810659146.5A CN108672631A (en) | 2018-06-25 | 2018-06-25 | Hexagonal cold-extrusion shaping mold and application in a kind of synchronous pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810659146.5A CN108672631A (en) | 2018-06-25 | 2018-06-25 | Hexagonal cold-extrusion shaping mold and application in a kind of synchronous pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108672631A true CN108672631A (en) | 2018-10-19 |
Family
ID=63812022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810659146.5A Pending CN108672631A (en) | 2018-06-25 | 2018-06-25 | Hexagonal cold-extrusion shaping mold and application in a kind of synchronous pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108672631A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992992A (en) * | 2020-08-21 | 2020-11-27 | 任奋 | Novel inner hexagonal plug screw blank forming process |
| CN112058936A (en) * | 2019-06-10 | 2020-12-11 | 上海汽车变速器有限公司 | Cold extrusion molding process of bevel gear |
| CN113560336A (en) * | 2021-07-26 | 2021-10-29 | 重庆钢铁研究所有限公司 | Preparation method of 17-4PH precipitation hardening stainless steel hexagonal steel profile |
| CN113843587A (en) * | 2021-09-18 | 2021-12-28 | 太仓久信精密模具股份有限公司 | Forming process of adjusting clamp sleeve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718506A (en) * | 1950-05-13 | 1954-11-17 | Mullins Mfg Corp | Process and apparatus for cold shaping metal |
| GB2156036A (en) * | 1984-03-21 | 1985-10-02 | Ina Bearing Co | Tensioning pulley |
| CN101607274A (en) * | 2009-07-13 | 2009-12-23 | 浙江工业大学 | Manufacturing process and particular manufacturing craft thereof based on the asymmetric universal-joint fork of automobile of cold-extrusion technology |
| CN102581140A (en) * | 2012-03-13 | 2012-07-18 | 苏州新凌高强度紧固件有限公司 | Inner hexagonal fine punching die |
| CN203702838U (en) * | 2014-02-28 | 2014-07-09 | 浙江超龙汽车零部件有限公司 | Ball pin formed by cold extrusion |
| CN108161352A (en) * | 2017-12-21 | 2018-06-15 | 宁波昌华铜制品有限公司 | The production method of copper piece |
-
2018
- 2018-06-25 CN CN201810659146.5A patent/CN108672631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718506A (en) * | 1950-05-13 | 1954-11-17 | Mullins Mfg Corp | Process and apparatus for cold shaping metal |
| GB2156036A (en) * | 1984-03-21 | 1985-10-02 | Ina Bearing Co | Tensioning pulley |
| CN101607274A (en) * | 2009-07-13 | 2009-12-23 | 浙江工业大学 | Manufacturing process and particular manufacturing craft thereof based on the asymmetric universal-joint fork of automobile of cold-extrusion technology |
| CN102581140A (en) * | 2012-03-13 | 2012-07-18 | 苏州新凌高强度紧固件有限公司 | Inner hexagonal fine punching die |
| CN203702838U (en) * | 2014-02-28 | 2014-07-09 | 浙江超龙汽车零部件有限公司 | Ball pin formed by cold extrusion |
| CN108161352A (en) * | 2017-12-21 | 2018-06-15 | 宁波昌华铜制品有限公司 | The production method of copper piece |
Non-Patent Citations (1)
| Title |
|---|
| 中国锻压协会, 辽宁科学技术出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058936A (en) * | 2019-06-10 | 2020-12-11 | 上海汽车变速器有限公司 | Cold extrusion molding process of bevel gear |
| CN111992992A (en) * | 2020-08-21 | 2020-11-27 | 任奋 | Novel inner hexagonal plug screw blank forming process |
| CN113560336A (en) * | 2021-07-26 | 2021-10-29 | 重庆钢铁研究所有限公司 | Preparation method of 17-4PH precipitation hardening stainless steel hexagonal steel profile |
| CN113560336B (en) * | 2021-07-26 | 2023-05-30 | 宝武特冶航研科技有限公司 | Preparation method of 17-4PH precipitation hardening stainless steel hexagonal steel section bar |
| CN113843587A (en) * | 2021-09-18 | 2021-12-28 | 太仓久信精密模具股份有限公司 | Forming process of adjusting clamp sleeve |
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| PB01 | Publication | ||
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Application publication date: 20181019 |