CN108971909A - A kind of synchronous pulley cold extrusion technology - Google Patents
A kind of synchronous pulley cold extrusion technology Download PDFInfo
- Publication number
- CN108971909A CN108971909A CN201810659149.9A CN201810659149A CN108971909A CN 108971909 A CN108971909 A CN 108971909A CN 201810659149 A CN201810659149 A CN 201810659149A CN 108971909 A CN108971909 A CN 108971909A
- Authority
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- China
- Prior art keywords
- blank
- upper punch
- cavity plate
- forging
- 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
Links
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 15
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000005242 forging Methods 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000005422 blasting Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 238000007127 saponification reaction Methods 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000005457 optimization Methods 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
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution 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
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of synchronous pulley cold extrusion technologies, the specific steps of the technique include: that hole-contracting outer diameter-crowded teeth is squeezed in blanking-ball blast-phospholeum-forming, it can be with cold extrusion shaped various belt pulleys by the technique, without heating, it does not pollute, and the performance of product is substantially increased, improve low with the utilization rate of the material cost of production efficiency drop.
Description
Technical field
The present invention relates to auto parts machinery production technical field, specifically a kind of synchronous pulley cold extrusion technology.
Background technique
Belt pulley is a kind of hub class machine components for transmitting power, since its structure is special.Using the method system of casting
Make belt pulley, the cost of raw material is high, and dosage is big, and time-consuming for casting process, and production efficiency is lower, and processing charges is high, to operator
Member's body harm is big, serious to environment and air pollution especially in casting process；
In the prior art, using powder metallurgical technique produce belt pulley product, but due to its formula and technique limitation,
Formula not enough optimization, belt pulley product has that hardness is really up to the mark or excessively soft, really up to the mark to cause belt pulley brittleness big, vibration
Greatly, the problems such as belt pulley is big using noise, and the service life is short；Cross it is soft lead to belt belt pulley easy to wear, for a long time using belt pulley it is easy
The problems such as deformation.
Blank is made using casting technique in most of existing belt pulley, then it is machined be made, due to many factors shadow
The defects of ringing, usually will appear stomata, pin hole, slag inclusion, crackle, pit in process.It is high simultaneously for some required precisions
Belt pulley, cast member processes that corner material is more, and waste is big, and at high cost, Product Precision is low, needs to be balanced processing, fabrication procedures
Cumbersome, qualification rate is very low.
Cold extruding technique is a kind of efficient chip processing technology less, and precision is high.After production efficiency forming with higher
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 shapes or closely shapes the development that complicated auto parts are current auto manufacturings to become only using cold-extrusion technology
Gesture.
Summary of the invention
Goal of the invention: in order to solve the deficiencies in the prior art, the present invention provides a kind of synchronous pulley cold-extrusion shaping works
Skill can not be polluted without heating with cold extrusion shaped various belt pulleys by the technique, and substantially increase production
The performance of product improves low with the utilization rate of the material cost of production efficiency drop.
Technical solution: in order to achieve the goal above, a kind of synchronous pulley cold extrusion technology of the present invention, special
Sign is that specific step is as follows for the technique:
(a) blanking
Sawed-off blanking is carried out to blank using circular saw and obtains blank；
(b) ball blast
Shot Blasting is carried out to the blank after blanking using drum-type shot blasting machine, with remove the oxide skin of blank surface with it is attached
Object；
(c) phospholeum
Phosphorus saponification process is carried out to the blank after ball blast；
(d) inner hole is shaped
By in punch die in phospholeumization treated blank is placed in extruding, blank at this time is placed in cavity plate A
The top of the top of low punch A, blank is equipped with upper punch A, when upper punch A is moved downward with the sliding block of press machine, drives base
Part moves downward simultaneously, forms inner hole；
(e) contracting outer diameter
Blank after forming inner hole is placed in contracting outer diameter mold, blank at this time is placed on the lower top in cavity plate B
The top of the top of bar, blank is equipped with upper punch B, and upper punch B is moved downward with the sliding block of stamping equipment, drives blank simultaneously
It moves downward, blank forms lower end outside diameter；
(f) crowded teeth
Blank after contracting outer diameter is placed in crowded teeth mold, blank at this time is placed in cavity plate C, upper punch C quilt
It is placed in blank, hanging connecting rod mechanism is set in the top of upper punch C, as upper punch C as the sliding block of stamping equipment is downward
After moving to contact blank inner hole bottom, hanging connecting rod mechanism is moved to along slide block movement opposite direction and is flushed at the top of upper punch C
Position, then upper punch C drives blank to move downward, and carries out extruding tooth, and the outer surface of blank is squeezed, and forms most finish-forging
Part；After blank becomes final forging, cavity plate C is moved upwards under the action of press machine, and forging and cavity plate C are detached from, hanging connecting rod
Connecting rod in mechanism is moved downward ejects forging from cavity plate C, and forging and upper punch C are detached from this time, forging demoulding.
As present invention further optimization, the inner surface of the cavity plate B is equipped with to be adapted with the lower end outer circle of blank
Protrusion.
As present invention further optimization, the inner surface of the cavity plate C is equipped with tooth compatible with required extruding tooth
Shape.
Shot-blasting machine be by impeller head by steel sand shot high speed falling impact material surface a kind of processing technique,
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.
Phospholeum refers to a kind of technique of resaponifying after phosphatization, enters in saponification liquor after phosphating coat, drawing later or drawing
It stretches.
The utility model has the advantages that a kind of synchronous pulley cold extrusion technology of the present invention, compared with prior art, have with
Lower advantage:
(1) when shaping inner hole, punch-pin and cavity plate all install lower section, with conventional punch-pin mode phase of the cavity plate in lower section above
Than, the more convenient demoulding of the present invention, while can guarantee that the concentricity of outer circle and inner hole is stablized within 0.1mm, it is suitble to automation
Production；
(2) undergauge is outer circle and inner hole undergauge simultaneously ensure that concentric requirement of the outer circle with inner hole, and improve inner hole
Dimensional accuracy reduces subsequent turning surplus；
(3) crowded teeth mould structure is simple, convenient for demoulding, is easy to automated production, the service life is high；
(4) present invention can be with cold extrusion shaped various belt pulleys, and versatility is good；
(5) present invention does not pollute, and substantially increase the performance of product without heating, improves production efficiency
Low with the utilization rate of material cost drops.
Detailed description of the invention
Fig. 1 is that the type of blank becomes schematic diagram；
Fig. 2 is the schematic diagram of final forging；
Fig. 3 is the structural schematic diagram of punch die in squeezing；
Fig. 4 is the structural schematic diagram of contracting outer diameter mold；
Fig. 5 is the structural schematic diagram of crowded teeth mold.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated.
As shown in Figure 1 and Figure 2, a kind of synchronous pulley cold extrusion technology of the present invention, the specific steps of the technique
It include: that hole-contracting outer diameter-crowded teeth-demoulding is squeezed in blanking-ball blast-phospholeum-forming.
Embodiment 1
(a) blanking
Sawed-off blanking is carried out to blank using circular saw and obtains blank 10；
(b) ball blast
Shot Blasting is carried out to the blank 10 after blanking using drum-type shot blasting machine, with remove the oxide skin of blank surface with
Attachment；
(c) phospholeum
Phosphorus saponification process is carried out to the blank 10 after ball blast；
(d) inner hole is shaped
As shown in figure 3, by punch die 1 in phospholeumization treated blank 10 is placed in extruding, 10 quilt of blank at this time
It is placed on the top of the low punch A13 in cavity plate A12, the top of blank 10 is equipped with upper punch A11, and upper punch A11 is with pressure
When the sliding block of machine moves downward, blank 10 is driven to move downward simultaneously, forms inner hole；
(e) contracting outer diameter
As shown in figure 4, the blank 10 after forming inner hole is placed in contracting outer diameter mold 2, blank 10 at this time is placed
The top of lower push rod 23 in cavity plate B22, the top of blank 10 are equipped with upper punch B21, upper punch B21 with press machine cunning
Block moves downward, and blank 10 is driven to move downward simultaneously, and blank 10 forms lower end outside diameter；
(f) crowded teeth
As shown in figure 5, the blank 10 after contracting outer diameter is placed in crowded teeth mold 3, blank 10 at this time is placed on recessed
In mould C33, upper punch C32 is placed in blank 10, and hanging connecting rod mechanism 31 is set in the top of upper punch C32, when upper punching
After head C32 is moved downwardly to contact 10 inner hole bottom of blank with the sliding block of press machine, hanging connecting rod mechanism 31 is along slide block movement
Opposite direction move to flush position at the top of upper punch C32, then upper punch C32 drives blank 10 to move downward, and is squeezed
Tooth, the inner surface in cavity plate C33 are equipped with tooth form compatible with required extrudings tooth, and the outer surface of blank 10 is squeezed, formation
Final forging, after blank 10 becomes final forging, cavity plate C33 is moved upwards under the action of press machine, and forging and cavity plate C33 are de-
From the connecting rod 311 in hanging connecting rod mechanism 31 is moved downward ejects forging from cavity plate C32, at this time forging and upper punch C32
It is detached from, forging demoulding.
The technical concepts and features of 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 (3)
1. a kind of synchronous pulley cold extrusion technology, which is characterized in that specific step is as follows for the technique:
(a) blanking
Sawed-off blanking is carried out to blank using circular saw and obtains blank (10)；
(b) ball blast
Shot Blasting is carried out to the blank (10) after blanking using drum-type shot blasting machine, with remove the oxide skin of blank surface with it is attached
Object；
(c) phospholeum
Phosphorus saponification process is carried out to the blank (10) after ball blast；
(d) inner hole is shaped
By in punch die (1) in phospholeumization treated blank (10) is placed in extruding, blank (10) at this time is placed on recessed
The top of the top of low punch A (13) in mould A (12), blank (10) is equipped with upper punch A (11), and upper punch A (11) is with pressure
When the sliding block of power machine moves downward, blank (10) is driven to move downward simultaneously, forms inner hole；
(e) contracting outer diameter
Blank (10) after forming inner hole is placed in contracting outer diameter mold (2), blank (10) at this time is placed on cavity plate B
(22) top of the top of the lower push rod (23) in, blank (10) is equipped with upper punch B (21), and upper punch B (21) is set with punching press
Standby sliding block moves downward, and blank (10) is driven to move downward simultaneously, and blank (10) forms lower end outside diameter；
(f) crowded teeth
Blank (10) after contracting outer diameter is placed in crowded teeth mold (3), blank (10) at this time is placed on cavity plate C (33)
Interior, upper punch C (32) is placed in blank (10), and hanging connecting rod mechanism (31) is set in the top of (32) upper punch C, when upper
After formed punch C (32) is moved downwardly to contact blank (10) inner hole bottom with the sliding block of stamping equipment, hanging connecting rod mechanism (31)
Along slide block movement opposite direction move to upper punch C (32) at the top of flush position, then upper punch C (32) drive blank (10) to
Lower movement carries out extruding tooth, and the outer surface of blank (10) is squeezed, and forms final forging, and blank (10) becomes final forging
Afterwards, cavity plate C (33) is moved upwards under the action of press machine, and forging and cavity plate C (33) are detached from, in hanging connecting rod mechanism (31)
Connecting rod (311) moves downward the ejection from cavity plate C (32) by forging, and forging and upper punch C (32) are detached from this time, forging demoulding.
2. a kind of synchronous pulley cold extrusion technology according to claim 1, it is characterised in that: the cavity plate B
(22) inner surface is equipped with protrusion compatible with the lower end outer circle of blank (10).
3. a kind of synchronous pulley cold extrusion technology according to claim 1, it is characterised in that: the cavity plate C
(33) inner surface is equipped with tooth form compatible with required extruding tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810659149.9A CN108971909A (en) | 2018-06-25 | 2018-06-25 | A kind of synchronous pulley cold extrusion technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810659149.9A CN108971909A (en) | 2018-06-25 | 2018-06-25 | A kind of synchronous pulley cold extrusion technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108971909A true CN108971909A (en) | 2018-12-11 |
Family
ID=64538592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810659149.9A Pending CN108971909A (en) | 2018-06-25 | 2018-06-25 | A kind of synchronous pulley cold extrusion technology |
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| Country | Link |
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| CN (1) | CN108971909A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909300A (en) * | 2012-10-19 | 2013-02-06 | 盐城理研精密锻造有限公司 | Gear-shaped tubular column cold forging and shaping method and gear extruding and hole extruding mould |
| CN202779476U (en) * | 2012-09-28 | 2013-03-13 | 许庆华 | Punch forming die for steel plate gear ring of anti-lock braking system (ABS) of automobile |
| CN202894169U (en) * | 2012-10-19 | 2013-04-24 | 盐城理研精密锻造有限公司 | Tooth-shaped tubular column cold forging gear hole extruding mould |
| CN103624148A (en) * | 2012-08-21 | 2014-03-12 | 欧自成 | Cold extrusion die for intermediate gear of one-way clutch |
| CN105195660A (en) * | 2015-10-16 | 2015-12-30 | 中国兵器工业第五九研究所 | Backward-extrusion active floating concave mold forming system and forming process |
| CN107138926A (en) * | 2017-06-20 | 2017-09-08 | 江苏威鹰机械有限公司 | Automobile CVT automatic transmission guide wheel shaft manufacturing process |
-
2018
- 2018-06-25 CN CN201810659149.9A patent/CN108971909A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624148A (en) * | 2012-08-21 | 2014-03-12 | 欧自成 | Cold extrusion die for intermediate gear of one-way clutch |
| CN202779476U (en) * | 2012-09-28 | 2013-03-13 | 许庆华 | Punch forming die for steel plate gear ring of anti-lock braking system (ABS) of automobile |
| CN102909300A (en) * | 2012-10-19 | 2013-02-06 | 盐城理研精密锻造有限公司 | Gear-shaped tubular column cold forging and shaping method and gear extruding and hole extruding mould |
| CN202894169U (en) * | 2012-10-19 | 2013-04-24 | 盐城理研精密锻造有限公司 | Tooth-shaped tubular column cold forging gear hole extruding mould |
| CN105195660A (en) * | 2015-10-16 | 2015-12-30 | 中国兵器工业第五九研究所 | Backward-extrusion active floating concave mold forming system and forming process |
| CN107138926A (en) * | 2017-06-20 | 2017-09-08 | 江苏威鹰机械有限公司 | Automobile CVT automatic transmission guide wheel shaft manufacturing process |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181211 |