CN101342566A - Integral cold forging process for bevel gear shaft - Google Patents
Integral cold forging process for bevel gear shaft Download PDFInfo
- Publication number
- CN101342566A CN101342566A CNA2008101245547A CN200810124554A CN101342566A CN 101342566 A CN101342566 A CN 101342566A CN A2008101245547 A CNA2008101245547 A CN A2008101245547A CN 200810124554 A CN200810124554 A CN 200810124554A CN 101342566 A CN101342566 A CN 101342566A
- Authority
- CN
- China
- Prior art keywords
- cold forging
- tooth
- wheel shaft
- angular wheel
- integral cold
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000010273 cold forging Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract description 6
- 238000000137 annealing Methods 0.000 claims abstract description 5
- 238000007127 saponification reaction Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 208000004141 microcephaly Diseases 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 4
- 238000012356 Product development Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Images
Landscapes
- Forging (AREA)
Abstract
The invention provides an integral cold forging process for a bevel gear shaft, and relates to the field of metal machining and metal stamping without cutting, in particular to an integral plastic precision forming method for the bevel gear shaft. The process comprises the following steps: selecting round steel bar materials, sawing, spheroidizing annealing, machining, making blanks, performing phosphorization and saponification treatment, forward extruding a shaft part, pre-upsetting a tooth part to form a sphere, spheroidizing annealing, performing phosphorization and saponification treatment, extruding the tooth to form a tooth, and finally extruding to form a square. By using the method provided by the invention, the metal streamline of the product is continuously distributed according to the shape, the internal structure is compact, the tooth surface of the bevel gear is more wear-resistant and durable, and the strength of the shaft is improved by more than two times compared with the strength of the shaft produced by the original process. Meanwhile, no material is lost in the cold forging process from the blank to the finished product, so that the material is saved and the energy consumption is reduced compared with the machining process. Because advanced three-dimensional modeling software is used for performing modeling cold forging processing during new product development, a large amount of time for developing and debugging the die is saved, and the development cost is reduced.
Description
Technical field
The present invention relates to not have cutting metal mechanism processing substantially, the whole plastic precise forming method of metal stamping field, especially angular wheel shaft.
Background technology
The processing method of existing angular wheel shaft has two kinds: first kind is that the bevel gear that will process is assemblied on the axle that processes, the method of assembling can adopt interference to join that pressure, spline are joined pressure, flat key adds jump ring etc., the defective that makes the angular wheel shaft that processes in this way mainly is that transmission intensity is low, and also there is the defective that consumptive material is many, power consumption is high in its process simultaneously; Second kind is bevel gear connecting shaft cast-in-block processing technology, and the defective that makes the angular wheel shaft that processes in this way mainly is that the bevel gear precision decreases, and yield rate is low, and the intensity of foundry goods also is lower than machined piece.In addition, also there are defectives such as time of product development length, development cost height in above-mentioned two kinds of processing methods.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, the integral cold forging technique for angular wheel shaft that a kind of anti-wear performance is good, transmission intensity is high is provided.
Technical solution of the present invention is: integral cold forging technique for angular wheel shaft, and its processing step is: spheroidizing after the first blanking, phospholeum processing behind the machined base again, just squeezing axial region, the tooth portion of pre-upsetting again, spheroidizing and phospholeum processing then, squeeze tooth then and be shaped, the extruding four directions is shaped at last.
Adopt technique scheme, add at normal temperatures to be pressed in and make the metal material flowing forming in the die cavity, metal streamline is by its shape continuous distributed, and dense internal organization makes that the flank of tooth of bevel gear is wear-resisting more durable, improves more than the twice during the former explained hereafter of the strength ratio of axle.Simultaneously, owing to the loss of having only in the cold forging process from the blank to the finished product seldom, therefore save material than process for machining, energy consumption has also reduced.Owing to use advanced three-dimensional simulation moulding software simulation Cold Forging during new product development, therefore saved a large amount of mould developments and trial-production time, reduced development cost.
Description of drawings
Fig. 1 is shape of product variation diagram in the process of the present invention.
Fig. 2 is a process chart of the present invention.
The present invention is described in detail below in conjunction with accompanying drawing.
The specific embodiment
With properties of product be: hardness HRC36-47.5
Tensile strength 1150-1540 newton/square millimeter
The product technology parameter is: bevel gear modulus 4
The number of teeth 12
20 ° of pressure angles
90 ° of crossed axis angles
The integral cold forging technique for angular wheel shaft of accuracy class (GB11365-89/8 level) is an example.
At first according to three-dimensional simulation moulding software simulation Cold Forging process, design molding and getting the raw materials ready, the raw material of present embodiment angular wheel shaft is a 20CrMnTi round steel bar.Its processing step is:
1,20CrMnTi round steel bar stock saw cutting is got in blanking, and former material base weight is greater than the 8-12% of finished weight after the control blanking;
2, former material base is carried out spheroidizing, 720 ℃-740 ℃ of heating-up temperatures of control be incubateds 3-4 hour, are cooled to≤air cooling of coming out of the stove after 500 ℃ with stove, control annealing hardness 70-85HRB;
3, machined base, machined are removed former material base surface scale, and guarantee that billet weight is consistent with finished weight;
4, phospholeum processing, concrete grammar is as follows: 50-60 ℃ of liquid temperature pickling 5-10 minute, clear water rinsing 1-2 minute; 70-80 ℃ of liquid temperature phosphatization 10-15 minute, clear water rinsing 1-2 minute; 80-95 ℃ of liquid temperature saponification 8-10 minute;
5, just squeezing axial region, by the axle microcephaly of just crowded method shaping angular wheel shaft, Control Shaft microcephaly's diameter and length dimension, diameter are than the little 0.2-0.5mm of finished diameter, and length is than the short 1-2mm of finished product length;
6, the tooth portion globulate of pre-upsetting, control the diameter and the length dimension of a major part well, and the weight in jumping-up bulb, guarantee that an axle diameter at butt end meets finished size, length is reserved the length of next procedure four directions extruding elongation, and guarantees the Heavy Weight 5-10% of the weight ratio finished product tooth portion in jumping-up bulb;
7, spheroidizing, 720 ℃-740 ℃ of heating-up temperatures of control be incubateds 3-4 hour, are cooled to≤air cooling of coming out of the stove after 500 ℃ with stove, control annealing hardness 70-85HRB;
8, phospholeum processing, concrete grammar is as follows: 50-60 ℃ of liquid temperature pickling 5-10 minute, clear water rinsing 1-2 minute; 70-80 ℃ of liquid temperature phosphatization 10-15 minute, clear water rinsing 1-2 minute; 80-95 ℃ of liquid temperature saponification 8-10 minute;
9, just squeeze the bevel gear profile of tooth, regularly checking the bevel gear tooth-face roughness and the sufficient situation of profile of tooth of just squeezing after the profile of tooth, as running into the situation that gear plucking or tooth bottom surface have material to have more, the mould that needs timely repairing mould or more renew;
10, adopt the cubic head on diameter reducing extrusion method machining bevel gears top, the diameter and the length in control four directions meet the finished size requirement.
Claims (9)
1, integral cold forging technique for angular wheel shaft is characterized in that: its processing step is a spheroidizing after the first blanking, again phospholeum processing behind the machined base, just squeezing axial region, the tooth portion of pre-upsetting again, spheroidizing and phospholeum processing then, squeeze tooth then and be shaped, the extruding four directions is shaped at last.
2, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: described blanking is meant gets the round steel bar stock saw cutting, and former material base weight is greater than the 8-12% of finished weight after the control blanking.
3, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: described spheroidizing is meant 720 ℃-740 ℃ of heating-up temperatures of control, be incubated 3-4 hour, is cooled to≤air cooling of coming out of the stove after 500 ℃ with stove, controls annealing hardness 70-85HRB.
4, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: described machined base is meant that machined removes former material base surface scale, and guarantees that billet weight is consistent with finished weight.
5, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: described phospholeum processing is meant 50-60 ℃ of liquid temperature pickling 5-10 minute, clear water rinsing 1-2 minute; 70-80 ℃ of liquid temperature phosphatization 10-15 minute, clear water rinsing 1-2 minute; 80-95 ℃ of liquid temperature saponification 8-10 minute.
6, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: described just crowded axial region is meant the axle microcephaly by the method shaping angular wheel shaft that is just squeezing, Control Shaft microcephaly's diameter and length dimension, diameter is than the little 0.2-0.5mm of finished diameter, and length is than the short 1-2mm of finished product length.
7, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: the described tooth portion of pre-upsetting is meant the tooth portion globulate of pre-upsetting, control the diameter and the length dimension of a major part well, and the weight in jumping-up bulb, guarantee that the axle diameter at butt end meets finished size, length is reserved the length of next procedure four directions extruding elongation, and guarantees the Heavy Weight 5-10% of the weight ratio finished product tooth portion in jumping-up bulb.
8, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: it is to make a comment or criticism to squeeze the bevel gear profile of tooth that described crowded tooth is shaped, just regularly check the bevel gear tooth-face roughness and the sufficient situation of profile of tooth of squeezing after the profile of tooth, as run into the situation that gear plucking or tooth bottom surface have material to have more, the mould that needs timely repairing mould or more renew.
9, according to the described integral cold forging technique for angular wheel shaft of claim 1, it is characterized in that: described extruding four directions is shaped and is meant the cubic head that adopts diameter reducing extrusion method machining bevel gears top, and the diameter and the length in control four directions meet the finished size requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101245547A CN101342566B (en) | 2008-08-25 | 2008-08-25 | Integral cold forging technique for angular wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101245547A CN101342566B (en) | 2008-08-25 | 2008-08-25 | Integral cold forging technique for angular wheel shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101342566A true CN101342566A (en) | 2009-01-14 |
| CN101342566B CN101342566B (en) | 2010-10-13 |
Family
ID=40244753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101245547A Active CN101342566B (en) | 2008-08-25 | 2008-08-25 | Integral cold forging technique for angular wheel shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101342566B (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954438A (en) * | 2010-10-09 | 2011-01-26 | 老锡华 | Process for forming conjoined gear shaft by multistage cold former |
| CN102189142A (en) * | 2011-03-08 | 2011-09-21 | 玉环县兴隆机械厂 | Universal joint fork processing process |
| CN102189373A (en) * | 2010-12-30 | 2011-09-21 | 江苏创一精锻有限公司 | Integral forging near net shaping process for triple gear block, and prepared gear shaft |
| CN102350622A (en) * | 2011-08-22 | 2012-02-15 | 兴化市隆鑫机械有限公司 | Production process of straight tooth gear of oil pump |
| CN102430692A (en) * | 2011-10-19 | 2012-05-02 | 浙江工业大学 | Cold precision forging process for bevel gear and mould thereof |
| CN102463320A (en) * | 2010-11-11 | 2012-05-23 | 江苏威鹰机械有限公司 | Cold forging precise forming process for mechanical transmission gear shaft |
| CN102527900A (en) * | 2012-02-15 | 2012-07-04 | 西北工业大学 | Precision forging die of gear shaft and molding method of precision forging die |
| CN102581191A (en) * | 2012-01-13 | 2012-07-18 | 冠亿精密工业(昆山)有限公司 | Cold-forging side fixing type forging process |
| CN102744342A (en) * | 2012-06-11 | 2012-10-24 | 盐城理研精密锻造有限公司 | Method for forging cutting-tooth forge piece |
| CN102825088A (en) * | 2012-09-13 | 2012-12-19 | 无锡恒力标准件制造有限公司 | Gear shaft cold extrusion die and extrusion process thereof |
| CN102852958A (en) * | 2012-08-27 | 2013-01-02 | 江苏森威集团飞达股份有限公司 | Starter output shaft and processing technology thereof |
| CN101767178B (en) * | 2009-12-31 | 2013-01-16 | 深圳航空标准件有限公司 | Manufacturing method of spline shaft by cold heading |
| CN102990291A (en) * | 2012-08-22 | 2013-03-27 | 昌利锻造有限公司 | Forging method of idler shaft for gearbox |
| CN102990290A (en) * | 2012-08-22 | 2013-03-27 | 昌利锻造有限公司 | Processing method of idler shaft |
| CN103381467A (en) * | 2013-07-11 | 2013-11-06 | 江苏森威精锻有限公司 | Opening and closing mold forming method for step type forge pieces |
| CN103394869A (en) * | 2013-07-12 | 2013-11-20 | 江苏威鹰机械有限公司 | Precision forging plastic forming process of power take-off device flange shaft |
| CN103846619A (en) * | 2012-12-06 | 2014-06-11 | 浙江美亚特精密机械有限公司 | Precision-forged combined body cold forging process and realization device thereof |
| CN105251923A (en) * | 2015-11-12 | 2016-01-20 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming process for transmission gear and heavy extruding die structure for forming middle teeth |
| CN105945519A (en) * | 2016-05-24 | 2016-09-21 | 江苏创汽车零部件有限公司 | Cold forging forming technology of hollow pipe output shaft |
| CN106623467A (en) * | 2017-02-23 | 2017-05-10 | 湖北名泰农机有限公司 | Cold extruder for machining sprayer shaft and machining process of sprayer shaft |
| CN106862472A (en) * | 2017-03-13 | 2017-06-20 | 谷城天兴机械有限公司 | Wear-resisting circular shaft cold extruding processing method and brake shoe roller axle processing method |
| CN106862289A (en) * | 2017-03-13 | 2017-06-20 | 谷城天兴机械有限公司 | The cold extrusion processing technics for preventing the brake shoe roller axle shaft shoulder from offseting |
| CN106955965A (en) * | 2017-03-13 | 2017-07-18 | 谷城天兴机械有限公司 | The cold extrusion processing technics of brake shoe roller axle |
| CN108006198A (en) * | 2017-12-17 | 2018-05-08 | 江苏威鹰机械有限公司 | New-energy automobile reducer gear axis and its manufacturing process |
| CN111001999A (en) * | 2019-12-11 | 2020-04-14 | 广州小出钢管有限公司 | Machining method for gear shaft of automobile |
| CN111546020A (en) * | 2020-05-27 | 2020-08-18 | 苏州联咏成精密机械有限公司 | Shunting cold extrusion high-precision forming method for automobile spiral bevel gear |
| CN113134714A (en) * | 2021-04-12 | 2021-07-20 | 玉环县格黎特汽车配件厂 | Processing technology of bevel gear shaft |
-
2008
- 2008-08-25 CN CN2008101245547A patent/CN101342566B/en active Active
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767178B (en) * | 2009-12-31 | 2013-01-16 | 深圳航空标准件有限公司 | Manufacturing method of spline shaft by cold heading |
| CN101954438A (en) * | 2010-10-09 | 2011-01-26 | 老锡华 | Process for forming conjoined gear shaft by multistage cold former |
| CN102463320A (en) * | 2010-11-11 | 2012-05-23 | 江苏威鹰机械有限公司 | Cold forging precise forming process for mechanical transmission gear shaft |
| CN102189373A (en) * | 2010-12-30 | 2011-09-21 | 江苏创一精锻有限公司 | Integral forging near net shaping process for triple gear block, and prepared gear shaft |
| CN102189373B (en) * | 2010-12-30 | 2013-04-03 | 江苏创一精锻有限公司 | Integral forging near net shaping process for triple gear block, and prepared gear shaft |
| CN102189142A (en) * | 2011-03-08 | 2011-09-21 | 玉环县兴隆机械厂 | Universal joint fork processing process |
| CN102350622A (en) * | 2011-08-22 | 2012-02-15 | 兴化市隆鑫机械有限公司 | Production process of straight tooth gear of oil pump |
| CN102350622B (en) * | 2011-08-22 | 2013-09-25 | 兴化市隆鑫机械有限公司 | Production process of straight tooth gear of oil pump |
| CN102430692A (en) * | 2011-10-19 | 2012-05-02 | 浙江工业大学 | Cold precision forging process for bevel gear and mould thereof |
| CN102581191A (en) * | 2012-01-13 | 2012-07-18 | 冠亿精密工业(昆山)有限公司 | Cold-forging side fixing type forging process |
| CN102527900A (en) * | 2012-02-15 | 2012-07-04 | 西北工业大学 | Precision forging die of gear shaft and molding method of precision forging die |
| CN102527900B (en) * | 2012-02-15 | 2014-03-12 | 西北工业大学 | Precision forging die of gear shaft and molding method of precision forging die |
| CN102744342A (en) * | 2012-06-11 | 2012-10-24 | 盐城理研精密锻造有限公司 | Method for forging cutting-tooth forge piece |
| CN102990291A (en) * | 2012-08-22 | 2013-03-27 | 昌利锻造有限公司 | Forging method of idler shaft for gearbox |
| CN102990290A (en) * | 2012-08-22 | 2013-03-27 | 昌利锻造有限公司 | Processing method of idler shaft |
| CN102852958A (en) * | 2012-08-27 | 2013-01-02 | 江苏森威集团飞达股份有限公司 | Starter output shaft and processing technology thereof |
| CN102825088A (en) * | 2012-09-13 | 2012-12-19 | 无锡恒力标准件制造有限公司 | Gear shaft cold extrusion die and extrusion process thereof |
| CN103846619A (en) * | 2012-12-06 | 2014-06-11 | 浙江美亚特精密机械有限公司 | Precision-forged combined body cold forging process and realization device thereof |
| CN103381467A (en) * | 2013-07-11 | 2013-11-06 | 江苏森威精锻有限公司 | Opening and closing mold forming method for step type forge pieces |
| CN103394869A (en) * | 2013-07-12 | 2013-11-20 | 江苏威鹰机械有限公司 | Precision forging plastic forming process of power take-off device flange shaft |
| CN105251923A (en) * | 2015-11-12 | 2016-01-20 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming process for transmission gear and heavy extruding die structure for forming middle teeth |
| CN105945519A (en) * | 2016-05-24 | 2016-09-21 | 江苏创汽车零部件有限公司 | Cold forging forming technology of hollow pipe output shaft |
| CN106623467A (en) * | 2017-02-23 | 2017-05-10 | 湖北名泰农机有限公司 | Cold extruder for machining sprayer shaft and machining process of sprayer shaft |
| CN106862472A (en) * | 2017-03-13 | 2017-06-20 | 谷城天兴机械有限公司 | Wear-resisting circular shaft cold extruding processing method and brake shoe roller axle processing method |
| CN106862289A (en) * | 2017-03-13 | 2017-06-20 | 谷城天兴机械有限公司 | The cold extrusion processing technics for preventing the brake shoe roller axle shaft shoulder from offseting |
| CN106955965A (en) * | 2017-03-13 | 2017-07-18 | 谷城天兴机械有限公司 | The cold extrusion processing technics of brake shoe roller axle |
| CN106955965B (en) * | 2017-03-13 | 2019-03-29 | 谷城天兴机械有限公司 | The cold extrusion processing technics of brake shoe roller axis |
| CN108006198A (en) * | 2017-12-17 | 2018-05-08 | 江苏威鹰机械有限公司 | New-energy automobile reducer gear axis and its manufacturing process |
| CN111001999A (en) * | 2019-12-11 | 2020-04-14 | 广州小出钢管有限公司 | Machining method for gear shaft of automobile |
| CN111546020A (en) * | 2020-05-27 | 2020-08-18 | 苏州联咏成精密机械有限公司 | Shunting cold extrusion high-precision forming method for automobile spiral bevel gear |
| CN113134714A (en) * | 2021-04-12 | 2021-07-20 | 玉环县格黎特汽车配件厂 | Processing technology of bevel gear shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101342566B (en) | 2010-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101342566B (en) | Integral cold forging technique for angular wheel shaft | |
| CN110091138A (en) | A kind of novel hollow production method of shaft | |
| CN102350615B (en) | Shunt blocking forming method for star-shaped sleeve | |
| CN104646956B (en) | Process for machining ball cage bell-like shell | |
| CN101352799B (en) | Occlusion extruding molding method for long axis | |
| CN103464992B (en) | Ratchet wheel of park gear of car transmission production technology | |
| CN103707017B (en) | CVT automatic gear-box V-type belt wheel axle finish forge plastic forming technique | |
| CN105127345B (en) | Production method of saloon car transmission combination gear ring | |
| CN102189373B (en) | Integral forging near net shaping process for triple gear block, and prepared gear shaft | |
| CN104589002A (en) | Manufacturing technology of hollow outer gear of electric forklift driving flange | |
| CN105880304A (en) | Cold extruding forming method used for automotive spline sleeve part | |
| CN109695623B (en) | Integral lightweight gear shaft and manufacturing process thereof | |
| CN105179450A (en) | Production method of car transmission input axle hubs | |
| CN104476146A (en) | Production process of automotive middle-rear axle transmission meshing sleeve | |
| CN101332489B (en) | Cold-forging precise forming technique of gear sleeve | |
| CN102489978A (en) | Hot and cold composite precision forging forming method of great-modulus high-thickness straight-tooth cylindrical gear | |
| CN103962802A (en) | Warm extrusion forming process of internal thread joint of petroleum drill rod | |
| CN1125693C (en) | Manufacturing process of automobile gearbox combined tooth blank | |
| CN102500732B (en) | Multi-station cold heading forming technology of automobile door limiter | |
| CN104801651A (en) | Method of manufacturing gear with double teeth patterns involving forging and two stage cold extrusion process | |
| CN104439995A (en) | Making technology for transmission double-end internal-teeth ring of electric forklift | |
| CN112058936A (en) | Cold extrusion molding process of bevel gear | |
| CN101545440A (en) | Method for manufacturing swivel of actuating lever for motorcycle | |
| CN103658213A (en) | Novel extrusion method for efficiently machining straight spur gear | |
| CN201354837Y (en) | Equidistance spiral bevel gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Integral cold forging technique for angular wheel shaft Effective date of registration: 20180212 Granted publication date: 20101013 Pledgee: Bank of China Limited by Share Ltd Dafeng branch Pledgor: Jiangsu Chuangyi Precision Forging Co., Ltd. Registration number: 2018320010009 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190212 Granted publication date: 20101013 Pledgee: Bank of China Limited by Share Ltd Dafeng branch Pledgor: Jiangsu Chuangyi Precision Forging Co., Ltd. Registration number: 2018320010009 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Integral cold forging technique for angular wheel shaft Effective date of registration: 20190212 Granted publication date: 20101013 Pledgee: Bank of China Limited by Share Ltd Dafeng branch Pledgor: Jiangsu Chuangyi Precision Forging Co., Ltd. Registration number: 2019320000088 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200109 Granted publication date: 20101013 Pledgee: Bank of China Limited by Share Ltd Dafeng branch Pledgor: Jiangsu Chuangyi Precision Forging Co., Ltd. Registration number: 2019320000088 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Integral cold forging technique for angular wheel shaft Effective date of registration: 20200115 Granted publication date: 20101013 Pledgee: Bank of China Limited by Share Ltd Dafeng branch Pledgor: Jiangsu Chuangyi Precision Forging Co., Ltd. Registration number: Y2020320000054 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |