CN107262657A - A kind of Cycloidal Wheel processing method - Google Patents
A kind of Cycloidal Wheel processing method Download PDFInfo
- Publication number
- CN107262657A CN107262657A CN201710570659.4A CN201710570659A CN107262657A CN 107262657 A CN107262657 A CN 107262657A CN 201710570659 A CN201710570659 A CN 201710570659A CN 107262657 A CN107262657 A CN 107262657A
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- CN
- China
- Prior art keywords
- blank
- cycloidal wheel
- antioxidation coating
- processing method
- product
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
Abstract
The invention provides a kind of Cycloidal Wheel processing method, it is related to technical field of forging;Raw wool blank is polished with sand paper first, shot-blasting machine Shot Blasting is used again, obtain the blank of the smooth free from admixture in surface, one layer of antioxidation coating is plated in blank surface, then it is with pneumatic hammer that the blank after heating is upset, progress finish-forging shaping on 600T friction presses is put into, 6 through holes gone out after trimming with 400T punch presses on Cycloidal Wheel product are finally heat-treated to product;Anti-oxidation processing is carried out to raw wool base before blanking, the intensity and anti-oxidant degree of blank are not only increased, and avoids forging deflection during punching from influenceing final products qualification rate greatly very much, hot piercing is optimized for by milling machine hole milling, Milling Machining cost is reduced, production efficiency is improved.
Description
Technical field
The present invention relates to technical field of forging, and in particular to a kind of Cycloidal Wheel processing method.
Background technology
Cycloid pinwheel planetary gear transmission system has gearratio big, compact conformation, large carrying capacity and transmission efficiency height etc. prominent
Advantage, is widely used in the industrial circles such as machinery, mine, metallurgy, chemical industry, weaving, national defense industry.The transmission total number of teeth in engagement is more,
Error average effect significantly, high transmission accuracy, and without flexible member, torsional rigidity is high, in recent years precision drive field by
Extensive concern is arrived, in addition, the cycloid gear pump based on cycloid pinwheel planetary gear transmission system principle is because engagement process is steady, pulsation
Small, noise is low, has also obtained the attention of various countries.
Cycloidal Wheel product is typically to have 6 through holes in an important gear, the product end surface inside robot device,
Current processing method with milling machine is milled out in hole come this method cost is higher, the production cycle is long, no after blank forging is shaped
It is larger beneficial to deformation of products amount after batch production, and milling machine punching, product qualification rate is influenceed, product strength is relatively low.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, the invention provides a kind of Cycloidal Wheel processing method so that production efficiency improve, into
This reduction, with good economic benefit.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs:
A kind of Cycloidal Wheel processing method, comprises the following steps:
(1) anti-oxidation processing:Raw wool blank is polished with sand paper, takes pneumatic mode to blow away waste material, then thrown with shot-blasting machine
Ball processing, obtains the blank of the smooth free from admixture in surface, and one layer of antioxidation coating is plated in blank surface;Wherein, antioxidation coating material bag
Containing aluminium, zinc and chromium, the mass ratio of aluminium, zinc and chromium is 1:2:1;
Plating antioxidation coating method be:(1) metal dust aluminium, zinc and chromium are well mixed, heating melting is cooled down, is made
Bulk alloy;(2) bulk alloy is pressed into the thick sheet alloys of 0.2mm;(3) blank is put into vacuum evaporation plating machine, with true
Empty pumping vacuum, sheet alloy is put into crucible and heated, and gaseous state Alloy Plating is flashed at 1000-1100 DEG C in blank surface;
(2) blank after anti-oxidation processing is put into pure air and stands 2-3 days;
(3) by the blank blanking after step (2) processing, Cycloidal Wheel hole site is reserved, then adds blank by blanking mold
Heat arrives 1100-1250 DEG C, is incubated 60-90min;
According to Cycloidal Wheel size design Cycloidal Wheel blanking mold, with 6 lead to the hole site pair of Cycloidal Wheel on blanking mold
It should locate to set through hole, be easy to save blank raw material in blanking;
(4) it is with pneumatic hammer that the blank after heating is upset, it is ensured that blank is full of mould;
(5) the upset blank of step (4) is put into progress finish-forging shaping on 600T friction presses, cut with 300T punch presses
Except unnecessary overlap;
(6) 6 through holes for going out the drip molding after trimming on Cycloidal Wheel product with 400T punch presses;
(7) product after punching is warming up to 750-800 DEG C, is incubated 5-8h, room temperature is cooled in atmosphere.
It is preferred that, the thickness of antioxidation coating is 0.04-0.08mm in the step (1).
It is preferred that, step (5) final forging temperature is 900-1100 DEG C.
(3) beneficial effect
The invention provides a kind of Cycloidal Wheel processing method, its advantage is:
(1) anti-oxidation processing is carried out to raw wool base before blanking, not only increases the intensity and anti-oxidant degree of blank, and
And being conducive to the progress of postorder punching technology, it is to avoid forging deflection is too big during punching, influences final products qualification rate;
(2) blanking mold reserves Cycloidal Wheel hole site, greatlys save single products cutting stock weight, every product saving
About 113 grams of raw material, former 1252 grams of the cutting stock weight of every product, it is 9% to save percentage;
(3) hot piercing is optimized for by milling machine hole milling, reduces Milling Machining cost, improve production efficiency.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1:
A kind of Cycloidal Wheel processing method, comprises the following steps:
(1) anti-oxidation processing:Raw wool blank is polished with sand paper, takes pneumatic mode to blow away waste material, then thrown with shot-blasting machine
Ball processing, obtains the blank of the smooth free from admixture in surface, and one layer of antioxidation coating is plated in blank surface;Wherein, antioxidation coating material bag
Containing aluminium, zinc and chromium, the mass ratio of aluminium, zinc and chromium is 1:2:1;
Plating antioxidation coating method be:(1) metal dust aluminium, zinc and chromium are well mixed, heating melting is cooled down, is made
Bulk alloy;(2) bulk alloy is pressed into the thick sheet alloys of 0.2mm;(3) blank is put into vacuum evaporation plating machine, with true
Empty pumping vacuum, sheet alloy is put into crucible and heated, and gaseous state Alloy Plating is flashed at 1000 DEG C in blank surface;
(2) blank after anti-oxidation processing is put into pure air and stands 2 days;
(3) by the blank blanking after step (2) processing, Cycloidal Wheel hole site is reserved, then adds blank by blanking mold
Heat is incubated 90min to 1100 DEG C;
According to Cycloidal Wheel size design Cycloidal Wheel blanking mold, with 6 lead to the hole site pair of Cycloidal Wheel on blanking mold
It should locate to set through hole, be easy to save blank raw material in blanking;
(4) it is with pneumatic hammer that the blank after heating is upset, it is ensured that blank is full of mould;
(5) the upset blank of step (4) is put into progress finish-forging shaping on 600T friction presses, cut with 300T punch presses
Except unnecessary overlap;
(6) 6 through holes for going out the drip molding after trimming on Cycloidal Wheel product with 400T punch presses;
(7) product after punching is warming up to 750 DEG C, is incubated 7h, room temperature is cooled in atmosphere.
The thickness of antioxidation coating is 0.04mm in the step (1).
Step (5) final forging temperature is 900 DEG C.
Embodiment 2:
A kind of Cycloidal Wheel processing method, comprises the following steps:
(1) anti-oxidation processing:Raw wool blank is polished with sand paper, takes pneumatic mode to blow away waste material, then thrown with shot-blasting machine
Ball processing, obtains the blank of the smooth free from admixture in surface, and one layer of antioxidation coating is plated in blank surface;Wherein, antioxidation coating material bag
Containing aluminium, zinc and chromium, the mass ratio of aluminium, zinc and chromium is 1:2:1;
Plating antioxidation coating method be:(1) metal dust aluminium, zinc and chromium are well mixed, heating melting is cooled down, is made
Bulk alloy;(2) bulk alloy is pressed into the thick sheet alloys of 0.2mm;(3) blank is put into vacuum evaporation plating machine, with true
Empty pumping vacuum, sheet alloy is put into crucible and heated, and gaseous state Alloy Plating is flashed at 1100 DEG C in blank surface;
(2) blank after anti-oxidation processing is put into pure air and stands 3 days;
(3) by the blank blanking after step (2) processing, Cycloidal Wheel hole site is reserved, then adds blank by blanking mold
Heat is incubated 80min to 1150 DEG C;
According to Cycloidal Wheel size design Cycloidal Wheel blanking mold, with 6 lead to the hole site pair of Cycloidal Wheel on blanking mold
It should locate to set through hole, be easy to save blank raw material in blanking;
(4) it is with pneumatic hammer that the blank after heating is upset, it is ensured that blank is full of mould;
(5) the upset blank of step (4) is put into progress finish-forging shaping on 600T friction presses, cut with 300T punch presses
Except unnecessary overlap;
(6) 6 through holes for going out the drip molding after trimming on Cycloidal Wheel product with 400T punch presses;
(7) product after punching is warming up to 800 DEG C, is incubated 8h, room temperature is cooled in atmosphere.
The thickness of antioxidation coating is 0.05mm in the step (1).
Step (5) final forging temperature is 1000 DEG C.
Embodiment 3:
A kind of Cycloidal Wheel processing method, comprises the following steps:
(1) anti-oxidation processing:Raw wool blank is polished with sand paper, takes pneumatic mode to blow away waste material, then thrown with shot-blasting machine
Ball processing, obtains the blank of the smooth free from admixture in surface, and one layer of antioxidation coating is plated in blank surface;Wherein, antioxidation coating material bag
Containing aluminium, zinc and chromium, the mass ratio of aluminium, zinc and chromium is 1:2:1;
Plating antioxidation coating method be:(1) metal dust aluminium, zinc and chromium are well mixed, heating melting is cooled down, is made
Bulk alloy;(2) bulk alloy is pressed into the thick sheet alloys of 0.2mm;(3) blank is put into vacuum evaporation plating machine, with true
Empty pumping vacuum, sheet alloy is put into crucible and heated, and gaseous state Alloy Plating is flashed at 1050 DEG C in blank surface;
(2) blank after anti-oxidation processing is put into pure air and stands 2 days;
(3) by the blank blanking after step (2) processing, Cycloidal Wheel hole site is reserved, then adds blank by blanking mold
Heat is incubated 70min to 1200 DEG C;
According to Cycloidal Wheel size design Cycloidal Wheel blanking mold, with 6 lead to the hole site pair of Cycloidal Wheel on blanking mold
It should locate to set through hole, be easy to save blank raw material in blanking;
(4) it is with pneumatic hammer that the blank after heating is upset, it is ensured that blank is full of mould;
(5) the upset blank of step (4) is put into progress finish-forging shaping on 600T friction presses, cut with 300T punch presses
Except unnecessary overlap;
(6) 6 through holes for going out the drip molding after trimming on Cycloidal Wheel product with 400T punch presses;
(7) product after punching is warming up to 750 DEG C, is incubated 5h, room temperature is cooled in atmosphere.
The thickness of antioxidation coating is 0.06mm in the step (1).
Step (5) final forging temperature is 1100 DEG C.
Embodiment 4:
A kind of Cycloidal Wheel processing method, comprises the following steps:
(1) anti-oxidation processing:Raw wool blank is polished with sand paper, takes pneumatic mode to blow away waste material, then thrown with shot-blasting machine
Ball processing, obtains the blank of the smooth free from admixture in surface, and one layer of antioxidation coating is plated in blank surface;Wherein, antioxidation coating material bag
Containing aluminium, zinc and chromium, the mass ratio of aluminium, zinc and chromium is 1:2:1;
Plating antioxidation coating method be:(1) metal dust aluminium, zinc and chromium are well mixed, heating melting is cooled down, is made
Bulk alloy;(2) bulk alloy is pressed into the thick sheet alloys of 0.2mm;(3) blank is put into vacuum evaporation plating machine, with true
Empty pumping vacuum, sheet alloy is put into crucible and heated, and gaseous state Alloy Plating is flashed at 1050 DEG C in blank surface;
(2) blank after anti-oxidation processing is put into pure air and stands 3 days;
(3) by the blank blanking after step (2) processing, Cycloidal Wheel hole site is reserved, then adds blank by blanking mold
Heat is incubated 60min to 1250 DEG C;
According to Cycloidal Wheel size design Cycloidal Wheel blanking mold, with 6 lead to the hole site pair of Cycloidal Wheel on blanking mold
It should locate to set through hole, be easy to save blank raw material in blanking;
(4) it is with pneumatic hammer that the blank after heating is upset, it is ensured that blank is full of mould;
(5) the upset blank of step (4) is put into progress finish-forging shaping on 600T friction presses, cut with 300T punch presses
Except unnecessary overlap;
(6) 6 through holes for going out the drip molding after trimming on Cycloidal Wheel product with 400T punch presses;
(7) product after punching is warming up to 800 DEG C, is incubated 6h, room temperature is cooled in atmosphere.
The thickness of antioxidation coating is 0.08mm in the step (1).
Step (5) final forging temperature is 1050 DEG C.
The effect that various embodiments above is obtained is detected, it is assumed that original production efficiency value benchmark is set to 100%, as a result
It is as follows:
As seen from the above table, anti-oxidation processing is carried out to raw wool base before blanking, adds the intensity of blank, it is to avoid punching
When forging deflection it is too big, improve final products qualification rate, blanking mold reserves Cycloidal Wheel hole site, save single-piece production
Product cutting stock weight, every product saves about 113 grams of raw material, and it is about 9% to save percentage, and hot piercing is optimized for by milling machine hole milling,
Improve production efficiency.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that:It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic;And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (3)
1. a kind of Cycloidal Wheel processing method, it is characterised in that comprise the following steps:
(1) anti-oxidation processing:Raw wool blank is polished with sand paper, takes pneumatic mode to blow away waste material, then with shot-blasting machine ball blast
Reason, obtains the blank of the smooth free from admixture in surface, and one layer of antioxidation coating is plated in blank surface;Wherein, antioxidation coating material is aluminium, zinc
And chromium, the mass ratio of aluminium, zinc and chromium is 1:2:1;
Plating antioxidation coating method be:(1) metal dust aluminium, zinc and chromium are well mixed, bulk is made in heating melting, cooling
Alloy;(2) bulk alloy is pressed into the thick sheet alloys of 0.2mm;(3) blank is put into vacuum evaporation plating machine, uses vavuum pump
Vacuumize, sheet alloy is put into crucible and heated, and gaseous state Alloy Plating is flashed at 1000-1100 DEG C in blank surface;
(2) blank after anti-oxidation processing is put into pure air and stands 2-3 days;
(3) by the blank blanking after step (2) processing, Cycloidal Wheel hole site is reserved, is then heated to blank by blanking mold
1100-1250 DEG C, it is incubated 60-90min;
(4) it is with pneumatic hammer that the blank after heating is upset, it is ensured that blank is full of mould;
(5) the upset blank of step (4) is put into progress finish-forging shaping on 600T friction presses, cuts off many with 300T punch presses
Remaining overlap;
(6) 6 through holes for going out the drip molding after trimming on Cycloidal Wheel product with 400T punch presses;
(7) product after punching is warming up to 750-800 DEG C, is incubated 5-8h, room temperature is cooled in atmosphere.
2. Cycloidal Wheel processing method as claimed in claim 1, it is characterised in that the thickness of antioxidation coating in the step (1)
For 0.04-0.08mm.
3. Cycloidal Wheel processing method as claimed in claim 1, it is characterised in that step (5) final forging temperature is 900-
1100℃。
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CN201710570659.4A CN107262657B (en) | 2017-07-13 | 2017-07-13 | Cycloidal gear machining method |
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CN201710570659.4A CN107262657B (en) | 2017-07-13 | 2017-07-13 | Cycloidal gear machining method |
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CN107262657A true CN107262657A (en) | 2017-10-20 |
CN107262657B CN107262657B (en) | 2020-05-15 |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63119945A (en) * | 1986-11-10 | 1988-05-24 | Goto Tanko Kk | Manufacture of gear by forging |
CN101618500A (en) * | 2009-07-20 | 2010-01-06 | 刘慧� | Production process of cycloidal gear of speed reducer |
CN101773976A (en) * | 2009-12-23 | 2010-07-14 | 青岛三星精锻齿轮有限公司 | Precision-forging anti-oxidization heating protective producing process of straight bevel gears of differentials |
CN103658498A (en) * | 2012-09-18 | 2014-03-26 | 上海华镛精密机械有限公司 | Forging method for warm-forging inner star wheel |
CN104028952A (en) * | 2013-03-07 | 2014-09-10 | 江苏龙城精锻有限公司 | High-pressure common rail system oil injecting nozzle block forming technology |
CN104057263A (en) * | 2014-07-04 | 2014-09-24 | 四川豪特石油设备有限公司 | Large-scale locomotive connecting rod forging technology |
WO2016052523A1 (en) * | 2014-09-29 | 2016-04-07 | 日立金属株式会社 | METHOD FOR PRODUCING Ni-BASED SUPER HEAT-RESISTANT ALLOY |
CN106514163A (en) * | 2016-11-28 | 2017-03-22 | 吉林大学 | Method for improving hot forging precision of conical gear |
-
2017
- 2017-07-13 CN CN201710570659.4A patent/CN107262657B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63119945A (en) * | 1986-11-10 | 1988-05-24 | Goto Tanko Kk | Manufacture of gear by forging |
CN101618500A (en) * | 2009-07-20 | 2010-01-06 | 刘慧� | Production process of cycloidal gear of speed reducer |
CN101773976A (en) * | 2009-12-23 | 2010-07-14 | 青岛三星精锻齿轮有限公司 | Precision-forging anti-oxidization heating protective producing process of straight bevel gears of differentials |
CN103658498A (en) * | 2012-09-18 | 2014-03-26 | 上海华镛精密机械有限公司 | Forging method for warm-forging inner star wheel |
CN104028952A (en) * | 2013-03-07 | 2014-09-10 | 江苏龙城精锻有限公司 | High-pressure common rail system oil injecting nozzle block forming technology |
CN104057263A (en) * | 2014-07-04 | 2014-09-24 | 四川豪特石油设备有限公司 | Large-scale locomotive connecting rod forging technology |
WO2016052523A1 (en) * | 2014-09-29 | 2016-04-07 | 日立金属株式会社 | METHOD FOR PRODUCING Ni-BASED SUPER HEAT-RESISTANT ALLOY |
CN106514163A (en) * | 2016-11-28 | 2017-03-22 | 吉林大学 | Method for improving hot forging precision of conical gear |
Non-Patent Citations (1)
Title |
---|
钱苗根: "《现代表面技术》", 31 July 2016, 机械工业出版社 * |
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