CN105537871B - A kind of manufacture method of washing machine drum bearing block - Google Patents
A kind of manufacture method of washing machine drum bearing block Download PDFInfo
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- CN105537871B CN105537871B CN201510977442.6A CN201510977442A CN105537871B CN 105537871 B CN105537871 B CN 105537871B CN 201510977442 A CN201510977442 A CN 201510977442A CN 105537871 B CN105537871 B CN 105537871B
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- 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
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
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Abstract
The present invention relates to a kind of manufacture method of washing machine drum bearing block, it comprises the following steps：By 45#Rod iron material is cut with cutting machine；Steel section is polished with shot-blasting machine；Steel section after polishing is heated with intermediate-frequency heating furnace；Forge the section of the steel after intermediate-frequency heating furnace is heated；Steel section after forging is subjected to rough forge, then goes out on blank step axle hole machine；The blank after step axle hole machine will be gone out and carry out finish-forging, the semi-finished product that step axle hole machine is reserved with allowance are obtained；Cut off that semi-finished product are cylindrical and the unnecessary material of inner circle；Semi-finished product after excision clout are cooled to 400 ~ 500 DEG C；Semi-finished product after supercooling are gone out into transitional pore；The semi-finished product for going out transitional pore are subjected to outer surface polishing with shot-blasting machine, the washing machine drum bearing block with rough external surface is formed.The present invention method and step is less, simple and easy to apply and high yield rate, the washing machine drum bearing block intensity obtained by the method for the present invention is big, defect is few and uniformity is preferable.
Description
Technical field
The present invention relates to a kind of manufacture method of bearing block, present invention relates especially to a kind of washing machine drum bearing block
Manufacture method.
Background technology
At present, washing machine drum bearing block machines to be formed again after using gray iron cast, and the product that casting is formed has sand
Hole, intensity is weaker, and unilateral eccentric phenomena is serious, and the margin of tolerance is big, is easily deformed and distorts, yield rate is relatively low, yield rate
Only 70% or so.
The content of the invention
The purpose of the present invention be overcome the deficiencies in the prior art to be readily produced there is provided one kind, gained product intensity
Greatly, the manufacture method of a kind of washing machine drum bearing block of high yield rate.
A kind of technical scheme provided according to the present invention, manufacture method of washing machine drum bearing block includes following step
Suddenly：
A, by 45#Rod iron material is cut with cutting machine, obtains steel section；
B, by steel section polished with shot-blasting machine；
C, by after polishing steel section heated with intermediate-frequency heating furnace, intermediate-frequency heating furnace temperature control at 1150 ~ 1250 DEG C,
Warm-up time was controlled at 3 ~ 7 seconds；
D, forge the section of the steel after intermediate-frequency heating furnace is heated so that steel section diameter is thicker and length reduction；
E, the steel section after forging is subjected to rough forge, then on blank goes out step axle hole machine, obtain profile and Step Shaft
The inner circle in hole is reserved with the blank of 1.8 ~ 2.3mm machining allowance；
F, the blank after step axle hole machine will be gone out carry out finish-forging, obtain profile and be reserved with 1 ~ 1.3mm with step axle hole machine adding
The semi-finished product of spare time amount；
G, the excision material that semi-finished product are cylindrical and inner circle is unnecessary；
H, by by excision clout after semi-finished product be cooled to 400 ~ 500 DEG C；
I, the semi-finished product after supercooling are gone out into transitional pore；
J, the semi-finished product for going out transitional pore carry out to outer surface polishing with shot-blasting machine, form the laundry with rough external surface
Machine cylinder bearing block.
As preferred：Step a is specifically, by the 45 of a diameter of 60 ~ 80mm#Rod iron material is cut with cutting machine, obtains length
For 100 ~ 150mm steel section.
As preferred：Step d is specifically, forge the section of the steel after intermediate-frequency heating furnace is heated so that the diameter of steel section becomes
Slightly to 70 ~ 95mm.
The present invention method and step is less, simple and easy to apply and high yield rate, 95% or so can be reached, pass through the present invention's
Washing machine drum bearing block intensity that method is obtained is big, defect is few and uniformity is preferable.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
A kind of manufacture method of washing machine drum bearing block comprises the following steps：
A, 45 by a diameter of 60mm#Rod iron material is cut with cutting machine, obtains the steel section that length is 100mm.
B, by steel section polished with shot-blasting machine；
C, by after polishing steel section heated with intermediate-frequency heating furnace, intermediate-frequency heating furnace temperature control at 1150 ~ 1250 DEG C,
Warm-up time was controlled at 3 ~ 7 seconds；
D, forge the steel after intermediate-frequency heating furnace is heated section so that steel section diameter it is thicker to 70mm；
E, the steel section after forging is subjected to rough forge, then on blank goes out step axle hole machine, obtain the interior of step axle hole machine
Circle is reserved with the blank of 1.8 ~ 2.3mm machining allowance；
F, will go out the blank after step axle hole machine carry out finish-forging, obtain step axle hole machine and be reserved with 1 ~ 1.3mm allowance
Semi-finished product；
G, the excision material that semi-finished product are cylindrical and inner circle is unnecessary；
H, by by excision clout after semi-finished product be cooled to 400 ~ 500 DEG C；
I, the semi-finished product after supercooling are gone out into transitional pore；
J, the semi-finished product for going out transitional pore carry out to outer surface polishing with shot-blasting machine, form the laundry with rough external surface
Machine cylinder bearing block.
500 washing machine drum bearing blocks are produced by the method for embodiment 1,475 finished products can be obtained, yield rate is
95%, the significantly larger than yield rate of prior art 70%；And the average hardness of resulting washing machine drum bearing block is 183.
Embodiment 2
A kind of manufacture method of washing machine drum bearing block comprises the following steps：
A, 45 by a diameter of 80mm#Rod iron material is cut with cutting machine, obtains the steel section that length is 150mm.
B, by steel section polished with shot-blasting machine；
C, by after polishing steel section heated with intermediate-frequency heating furnace, intermediate-frequency heating furnace temperature control at 1150 ~ 1250 DEG C,
Warm-up time was controlled at 3 ~ 7 seconds；
D, forge the steel after intermediate-frequency heating furnace is heated section so that steel section diameter it is thicker to 95mm；
E, the steel section after forging is subjected to rough forge, then on blank goes out step axle hole machine, obtain the interior of step axle hole machine
Circle is reserved with the blank of 1.8 ~ 2.3mm machining allowance；
F, will go out the blank after step axle hole machine carry out finish-forging, obtain step axle hole machine and be reserved with 1 ~ 1.3mm allowance
Semi-finished product；
G, the excision material that semi-finished product are cylindrical and inner circle is unnecessary；
H, by by excision clout after semi-finished product be cooled to 400 ~ 500 DEG C；
I, the semi-finished product after supercooling are gone out into transitional pore；
J, the semi-finished product for going out transitional pore carry out to outer surface polishing with shot-blasting machine, form the laundry with rough external surface
Machine cylinder bearing block.
500 washing machine drum bearing blocks are produced by the method for embodiment 2,485 finished products can be obtained, yield rate is
97%, the significantly larger than yield rate of prior art 70%；And the average hardness of resulting washing machine drum bearing block is 185.
Embodiment 3
A kind of manufacture method of washing machine drum bearing block comprises the following steps：
A, 45 by a diameter of 70mm#Rod iron material is cut with cutting machine, obtains the steel section that length is 120mm.
B, by steel section polished with shot-blasting machine；
C, by after polishing steel section heated with intermediate-frequency heating furnace, intermediate-frequency heating furnace temperature control at 1150 ~ 1250 DEG C,
Warm-up time was controlled at 3 ~ 7 seconds；
D, forge the steel after intermediate-frequency heating furnace is heated section so that steel section diameter it is thicker to 85mm；
E, the steel section after forging is subjected to rough forge, then on blank goes out step axle hole machine, obtain the interior of step axle hole machine
Circle is reserved with the blank of 1.8 ~ 2.3mm machining allowance；
F, will go out the blank after step axle hole machine carry out finish-forging, obtain step axle hole machine and be reserved with 1 ~ 1.3mm allowance
Semi-finished product；
G, the excision material that semi-finished product are cylindrical and inner circle is unnecessary；
H, by by excision clout after semi-finished product be cooled to 400 ~ 500 DEG C；
I, the semi-finished product after supercooling are gone out into transitional pore；
J, the semi-finished product for going out transitional pore carry out to outer surface polishing with shot-blasting machine, form the laundry with rough external surface
Machine cylinder bearing block.
500 washing machine drum bearing blocks are produced by the method for embodiment 3,480 finished products can be obtained, yield rate is
96%, the significantly larger than yield rate of prior art 70%；And the average hardness of resulting washing machine drum bearing block is 183.
The present invention produces washing machine drum bearing block by forging method, has the advantage that：
First, intensity：In technique, forging and stamping are to be integrally formed, will height compared to former ironcasting clamping system；On material,
The C45 rod irons in use are forged and pressed, intensity is greater than gray cast iron, and hardness is roughly equal with gray cast iron；
2nd, quality：In appearance, forging will not produce sand hole and scrap；Dimensionally, forging greatly reduces casting matched moulds
When the bearing block that produces it is eccentric；
3rd, process：Forge and press the easy turning of C45 rod irons used, easy punching press；
4th, environment：Forging and stamping are without substantial amounts of dust, and effect on environment is relatively small；It is right and substantial amounts of dust can be produced by casting
Environmental pollution is larger.
Claims (1)
1. a kind of manufacture method of washing machine drum bearing block, it is characterized in that it comprises the following steps：
A, by 45#Rod iron material is cut with cutting machine, obtains steel section；
B, by steel section polished with shot-blasting machine；
C, by after polishing steel section heated with intermediate-frequency heating furnace, intermediate-frequency heating furnace temperature control at 1150 ~ 1250 DEG C, heat
Time control was at 3 ~ 7 seconds；
D, forge the section of the steel after intermediate-frequency heating furnace is heated so that steel section diameter is thicker and length reduction；
E, the steel section after forging is subjected to rough forge, then on blank goes out step axle hole machine, the inner circle for obtaining step axle hole machine is pre-
Leave the blank of 1.8 ~ 2.3mm machining allowance；
F, the blank after step axle hole machine will be gone out carry out finish-forging, the inner circle for obtaining step axle hole machine is reserved with 1 ~ 1.3mm allowance
Semi-finished product；
G, the excision material that semi-finished product are cylindrical and inner circle is unnecessary；
H, by by excision clout after semi-finished product be cooled to 400 ~ 500 DEG C；
I, the semi-finished product after supercooling are gone out into transitional pore；
J, the semi-finished product for going out transitional pore carry out to outer surface polishing with shot-blasting machine, form the washing machine with rough external surface and roll
Cylinder bearing block；
Step a is specifically, by the 45 of a diameter of 60 ~ 80mm#Rod iron material is cut with cutting machine, obtains the steel that length is 100 ~ 150mm
Section；
Step d is specifically, forge the section of the steel after intermediate-frequency heating furnace is heated so that the diameter of steel section is thicker to 70 ~ 95mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977442.6A CN105537871B (en) | 2015-12-23 | 2015-12-23 | A kind of manufacture method of washing machine drum bearing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977442.6A CN105537871B (en) | 2015-12-23 | 2015-12-23 | A kind of manufacture method of washing machine drum bearing block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105537871A CN105537871A (en) | 2016-05-04 |
| CN105537871B true CN105537871B (en) | 2017-10-10 |
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ID=55817674
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977442.6A Active CN105537871B (en) | 2015-12-23 | 2015-12-23 | A kind of manufacture method of washing machine drum bearing block |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400146B (en) * | 2003-03-31 | 2005-03-02 | Minebea Co Ltd | A method of swaging a spherical bearing |
| CN201982524U (en) * | 2011-04-14 | 2011-09-21 | 无锡东和薄板装备制造有限公司 | Water-cooling bearing base |
| CN102873240A (en) * | 2012-09-27 | 2013-01-16 | 许昌中兴锻造有限公司 | Non-flash forging process for middle flanges of transmission shafts |
| CN103084812A (en) * | 2013-02-28 | 2013-05-08 | 重庆路畅汽车配件有限公司 | Cold extrusion molding manufacture method for planet wheel at side of automobile wheel |
| CN103741068A (en) * | 2014-01-03 | 2014-04-23 | 宝鼎重工股份有限公司 | Special process for freely forging EH36 optimized material steel ingot into plate-shaped bearing seat forged piece |
-
2015
- 2015-12-23 CN CN201510977442.6A patent/CN105537871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400146B (en) * | 2003-03-31 | 2005-03-02 | Minebea Co Ltd | A method of swaging a spherical bearing |
| CN201982524U (en) * | 2011-04-14 | 2011-09-21 | 无锡东和薄板装备制造有限公司 | Water-cooling bearing base |
| CN102873240A (en) * | 2012-09-27 | 2013-01-16 | 许昌中兴锻造有限公司 | Non-flash forging process for middle flanges of transmission shafts |
| CN103084812A (en) * | 2013-02-28 | 2013-05-08 | 重庆路畅汽车配件有限公司 | Cold extrusion molding manufacture method for planet wheel at side of automobile wheel |
| CN103741068A (en) * | 2014-01-03 | 2014-04-23 | 宝鼎重工股份有限公司 | Special process for freely forging EH36 optimized material steel ingot into plate-shaped bearing seat forged piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105537871A (en) | 2016-05-04 |
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