CN111660067A - Hub machining method - Google Patents
Hub machining method Download PDFInfo
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- CN111660067A CN111660067A CN202010494223.3A CN202010494223A CN111660067A CN 111660067 A CN111660067 A CN 111660067A CN 202010494223 A CN202010494223 A CN 202010494223A CN 111660067 A CN111660067 A CN 111660067A
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- hub
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- pressure fan
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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
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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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a hub processing method which comprises the steps of a, material cutting and forging, b, blank spinning, c, turning internal and external shapes and end faces, d, spoke milling, e, rough grinding to form a fine blank, cleaning, f, drying by an online fan, g, bottom powder spraying and baking, h, fan blowing and water mist spraying and cooling, i, fine grinding the fine blank, cleaning, j, using a high-pressure fan again, blowing dust and liquid on the fine blank, k, spraying paint, l, fine turning, shaping and polishing, and m, spraying transparent powder. According to the hub machining method, the wind blowing and water mist spraying methods are utilized, the spraying quality of the hub is improved, the cooling time of the hub is shortened, and the machining efficiency of the hub is improved.
Description
Technical Field
The invention relates to a manufacturing method, in particular to a hub machining method.
Background
In current wheel hub course of working, after carrying out the rough machining shaping, need polish the wheel hub, then carry out the base powder spraying, japanning and finishing process, because the in-process of polishing can produce a large amount of metals and abrasive material piece, consequently need wash the wheel hub before the base powder spraying, among the prior art, in case remain moisture on the wheel hub after nevertheless wasing, can influence base powder spraying and later japanning effect, and among the prior art, wheel hub is natural cooling after removing from the oven, general stoving temperature is 140 duC ~180 ℃, toast time and natural cooling time all longer, generally need 15 minutes ~30 minutes and 5 minutes ~10 minutes, the adhesion efficiency of base powder and the holistic production efficiency of wheel hub have been restricted.
Disclosure of Invention
The present invention is directed to provide a method for processing a hub, which is efficient and reduces the residue of adhering substances, in order to solve the above-mentioned disadvantages of the prior art.
In order to achieve the purpose, the hub machining method comprises the following steps of:
a. cutting an aluminum alloy bar stock into sections and forging the cut bar stock to be thick;
b. spinning the forged thick bar stock to form a blank;
c. turning, namely roughly turning a blank to process the inner and outer shapes of the rim and the inner and outer end faces of the hub of the blank axle according to the preset size;
d. milling, namely milling a spoke, a shaft hole and a bolt connecting hole on a hub of a wheel shaft, an inflating valve and a drain hole on the end surface of the blank by using a numerical control milling machine according to a preset program;
e. roughly grinding the blank into a fine blank, polishing the fine blank, and cleaning the hub fine blank after burrs formed on a rim and a spoke in the cutting process are polished;
f. drying by using an online fan, namely blowing and removing water remained on the refined blank by using a high-pressure fan, wherein the high-pressure fan provides airflow with the flow of 6000-12200 cubic meters per hour, and the blowing time is 2-5 minutes;
g. spraying and baking base powder, namely after spraying the base powder on the refined blank, sending the hub into a baking oven, wherein the baking temperature is 210-230 ℃, and the heat preservation duration is 8-10 minutes;
h. the hub is moved out of the oven, a high-pressure fan is adopted to blow for 30-60 s, and then water mist is used for spraying for 1 minute, so that the hub is fully cooled;
i. carrying out fine grinding on the fine blank, and cleaning;
j. blowing dust and liquid on the fine blank for 30-60 s by using the high-pressure fan again;
k. spraying paint on the rim, the spoke and the hub of the wheel of the refined blank;
carrying out finish turning, shape modification and polishing on the finish blank subjected to paint spraying;
and m, spraying transparent powder to the polished hub by using an electrostatic spraying method.
In order to ensure the quality of the hub and avoid unnecessary cost waste, the method further comprises the following steps between the step d and the step e: and n, unloading the blank from the milling machine, and detecting the dynamic balance and radial runout tolerance of the hub blank.
And f, in order to provide a proper temperature for the bottom powder spraying process in the step g, the temperature of the air flow provided by the high-pressure fan in the step f is 30-40 ℃.
In order to facilitate forging processing and realize light weight of the wheel, the aluminum alloy material of the aluminum alloy bar is 6061.
According to the hub machining method, the wind blowing and water mist spraying methods are utilized, the spraying quality of the hub is improved, the cooling time of the hub is shortened, and the machining efficiency of the hub is improved.
Drawings
FIG. 1 is a flow chart of an embodiment 1 of the hub machining method of the present invention;
FIG. 2 is a schematic view of a blower purge zone in example 1;
fig. 3 is a flowchart of a hub machining method embodiment 2 of the present invention.
In the figure: wheel hub 1, hoist 2, high pressure positive blower shower nozzle 3.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example 1:
the hub processing method described in this embodiment, as shown in fig. 1, includes the following steps:
a. cutting an aluminum alloy bar stock into sections and forging the cut bar stock to be thick;
b. spinning the forged thick bar stock to form the appearance of a rim and a hub of the wheel shaft by spinning to form a blank;
c. turning, namely roughly turning a blank according to a preset size to process the inner and outer shapes of the rim and the inner and outer end faces of the hub of the blank axle;
d. milling, namely milling a spoke, a shaft hole and a bolt connecting hole on a hub of a wheel shaft, an inflating valve and a drain hole on the end surface of the blank by using a numerical control milling machine according to a preset program;
e. roughly grinding the blank into a fine blank, polishing the fine blank, and cleaning the hub fine blank after burrs formed on a rim and a spoke in the cutting process are polished;
f. drying by using an online fan, namely blowing and removing water remained on the refined blank by using a high-pressure fan, wherein the high-pressure fan provides airflow with the flow of 6000-12200 cubic meters per hour, and the blowing time is 2-5 minutes;
g. spraying and baking base powder, namely after spraying the base powder on the fine blank, sending the hub 1 into an oven, wherein the baking temperature is 210-230 ℃, the heat preservation duration is 8-10 minutes, and in the embodiment, the oven temperature is controlled at 229 +/-1 ℃ and is kept for 8 minutes;
h. the hub 1 is moved out of the oven, a high-pressure fan is adopted to blow for 30-60 s, and then water mist is used for spraying for 1 minute, so that the hub 1 is fully cooled; in the process, the temperature of the used water is normal temperature;
i. carrying out fine grinding on the fine blank, and cleaning;
j. blowing dust and liquid on the fine blank for 30-60 s by using the high-pressure fan again;
k. spraying paint on the rim, the spoke and the hub of the wheel of the refined blank;
carrying out finish turning, shape modification and polishing on the finish blank subjected to paint spraying;
and m, spraying transparent powder to the polished hub 1 by using an electrostatic spraying method.
In the actual processing operation, the spinning, turning and milling processes are respectively completed through a numerical control spinning machine, a numerical control lathe and a numerical control milling machine; after rough grinding, the hub 1 is hung on a hanger 2, the hub 1 is washed by a high-pressure water gun, and abrasive dust on the hub 1 is washed off, as shown in fig. 2, the hanger 2 is driven by a traveling mechanism to pass through an area provided with a plurality of groups of high-pressure fan nozzles 3, fans are arranged on two sides in the embodiment, the total airflow flow is 12140 cubic meters per hour, meanwhile, the hub 1 passes through a fan sweeping area at the traveling speed of 1.7m/min under the driving of the hanger 2, the hub 1 on the hanger 2 receives sweeping of high-pressure airflow for 2 minutes in the area, and water and micro debris mixed with the water on the hub 1 are evaporated or blown off the hub 1; after the hub 1 is removed from the oven in the step g, in order to avoid damaging the shape of the hub 1 by too fast cooling, a high-pressure fan is firstly used for blowing for 30s, and water mist is used for spraying the hub 1; after the hub 1 is subjected to the fine grinding processing in the step i, the surface of the hub 1 can be provided with fine grinding dust and grinding fluid, meanwhile, in the fine grinding process, the hub 1 can be heated up due to friction, and after the hub 1 is cleaned, the high-pressure fan is used for blowing the hub 1 for 30s in the step j, so that the hub 1 can be cleaned and cooled.
According to the hub machining method provided by the embodiment, the spraying quality of the hub 1 is improved, the cooling time of the hub 1 is shortened, and the machining efficiency of the hub 1 is improved by using the wind blowing and water mist spraying methods.
Example 2:
in addition to the features of embodiment 1, as shown in fig. 3, the hub processing method described in this embodiment further includes, between step d and step e, the steps of: and n, unloading the blank from the milling machine, and detecting the dynamic balance and radial runout tolerance of the hub blank.
In this example, the oven temperature was controlled at 212 ± 1 ℃ and held for 10 minutes.
And in order to provide a proper temperature for the bottom powder spraying process in the step g, the temperature of the air flow provided by the high-pressure fan in the step f is controlled within the range of 30-40 ℃.
In order to facilitate forging processing and realize light weight of the wheel, the aluminum alloy material of the aluminum alloy bar is 6061.
In this embodiment, the high pressure fan on one side is adopted for blowing, the total flow is 6070 cubic meters per hour, in the step f, the online fan drying, the time consumption of the embodiment is 5 minutes, and in the step h and the step j, the high pressure fan is adopted for blowing the hub 1 for 60 seconds, and the arrangement is designed to save the space of a site for installing the fan so as to adapt to different plant requirements.
In the actual working process, after the air flow with the temperature is used for blowing in the step f, the evaporation speed of water on the hub in winter can be increased, the surface of the hub is ensured to be dry, and meanwhile, the hub fine blank is preheated or cooled, so that the adhesion rate of the base powder is improved by matching with the base powder spraying process in the step g.
Claims (4)
1. A hub machining method is characterized by comprising the following steps:
a. cutting an aluminum alloy bar stock into sections and forging the cut bar stock to be thick;
b. spinning the forged thick bar stock to form a blank;
c. turning, namely roughly turning a blank to process the inner and outer shapes of the rim and the inner and outer end faces of the hub of the blank axle according to the preset size;
d. milling, namely milling a spoke, a shaft hole and a bolt connecting hole on a hub of a wheel shaft, an inflating valve and a drain hole on the end surface of the blank by using a numerical control milling machine according to a preset program;
e. roughly grinding the blank into a fine blank, polishing the fine blank, and cleaning the hub fine blank after burrs formed on a rim and a spoke in the cutting process are polished;
f. drying by using an online fan, namely blowing and removing water remained on the refined blank by using a high-pressure fan, wherein the high-pressure fan provides airflow with the flow of 6000-12200 cubic meters per hour, and the blowing time is 2-5 minutes;
g. spraying and baking base powder, namely after spraying the base powder on the fine blank, sending the hub into a baking oven, wherein the baking temperature is 210-230 ℃, and the baking time lasts for 8-10 minutes;
h. the hub is moved out of the oven, a high-pressure fan is adopted to blow for 30-60 s, and then water mist is used for spraying for 1 minute to cool the hub;
i. carrying out fine grinding on the fine blank, and cleaning;
j. blowing dust and liquid on the fine blank for 30-60 s by using the high-pressure fan again;
k. spraying paint on the rim, the spoke and the hub of the wheel of the refined blank;
carrying out finish turning, shape modification and polishing on the finish blank subjected to paint spraying;
and m, spraying transparent powder to the polished hub by using an electrostatic spraying method.
2. The hub machining method according to claim 1, further comprising the step of, between the step d and the step e: and n, unloading the blank from the milling machine, and detecting the dynamic balance and radial runout tolerance of the hub blank.
3. The hub processing method according to claim 1 or 2, wherein the temperature of the air flow provided by the high-pressure fan in the step f is 30-40 ℃.
4. The hub machining method as claimed in claim 1 or 2, wherein the aluminum alloy bar stock is 6061.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494223.3A CN111660067B (en) | 2020-06-03 | 2020-06-03 | Hub machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494223.3A CN111660067B (en) | 2020-06-03 | 2020-06-03 | Hub machining method |
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| CN111660067A true CN111660067A (en) | 2020-09-15 |
| CN111660067B CN111660067B (en) | 2022-07-12 |
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| CN202010494223.3A Active CN111660067B (en) | 2020-06-03 | 2020-06-03 | Hub machining method |
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| DE10058806A1 (en) * | 2000-06-27 | 2002-06-06 | Hayes Lemmerz Holding Gmbh | Vehicle wheel has hub and spoke unit made from cast iron or iron alloy, especially spherolitic cast iron, and drop center rim made from sheet steel |
| CN102373390A (en) * | 2010-08-07 | 2012-03-14 | 秦皇岛开发区美铝合金有限公司 | Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs |
| CN102513783A (en) * | 2011-11-29 | 2012-06-27 | 苏竞 | Full-automatic production method for cold-rolling ultralight wheel hub made of aluminum alloy plate |
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| CN106041423A (en) * | 2016-06-23 | 2016-10-26 | 无锡康柏斯机械科技有限公司 | Production process of aluminum alloy hub |
| CN205673129U (en) * | 2016-06-17 | 2016-11-09 | 江西京禾高科涂料有限公司 | Automotive hub process line |
| CN108057595A (en) * | 2017-11-29 | 2018-05-22 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of high-wearing feature automotive hub coating process |
| CN108500234A (en) * | 2018-03-19 | 2018-09-07 | 中信戴卡股份有限公司 | A kind of manufacturing process of aluminum-alloy wheel |
| CN208376417U (en) * | 2018-07-11 | 2019-01-15 | 宁波自由者汽车部件有限公司 | A kind of automotive hub improving intensity using detachable spoke |
| CN109807219A (en) * | 2017-11-22 | 2019-05-28 | 四川航天世东汽车部件有限公司 | A kind of aluminium alloy wheel hub rotary pressing processing technique |
| CN110238619A (en) * | 2019-06-28 | 2019-09-17 | 内蒙古华唐铝业有限公司 | A kind of manufacture aluminium alloy wheel hub process flow system |
| CN111015121A (en) * | 2019-12-27 | 2020-04-17 | 大亚车轮制造有限公司 | Spinning casting process of aluminum alloy hub |
| CN210548032U (en) * | 2019-09-12 | 2020-05-19 | 东莞市青鸟金属材料有限公司 | Aluminum ingot casting molding cooling device |
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2020
- 2020-06-03 CN CN202010494223.3A patent/CN111660067B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058806A1 (en) * | 2000-06-27 | 2002-06-06 | Hayes Lemmerz Holding Gmbh | Vehicle wheel has hub and spoke unit made from cast iron or iron alloy, especially spherolitic cast iron, and drop center rim made from sheet steel |
| CN102373390A (en) * | 2010-08-07 | 2012-03-14 | 秦皇岛开发区美铝合金有限公司 | Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs |
| CN102513783A (en) * | 2011-11-29 | 2012-06-27 | 苏竞 | Full-automatic production method for cold-rolling ultralight wheel hub made of aluminum alloy plate |
| CN103572203A (en) * | 2012-08-07 | 2014-02-12 | 诺德轮毂制造有限公司 | Vacuum coating production process of automobile hub with high physical and chemical properties |
| CN103990947A (en) * | 2014-06-13 | 2014-08-20 | 浙江巨科实业有限公司 | Manufacturing method for Al-Mg alloy hub |
| CN105239069A (en) * | 2015-10-29 | 2016-01-13 | 桂林华森电力科技有限公司 | Automobile hub surface treatment process |
| CN205673129U (en) * | 2016-06-17 | 2016-11-09 | 江西京禾高科涂料有限公司 | Automotive hub process line |
| CN106041423A (en) * | 2016-06-23 | 2016-10-26 | 无锡康柏斯机械科技有限公司 | Production process of aluminum alloy hub |
| CN109807219A (en) * | 2017-11-22 | 2019-05-28 | 四川航天世东汽车部件有限公司 | A kind of aluminium alloy wheel hub rotary pressing processing technique |
| CN108057595A (en) * | 2017-11-29 | 2018-05-22 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of high-wearing feature automotive hub coating process |
| CN108500234A (en) * | 2018-03-19 | 2018-09-07 | 中信戴卡股份有限公司 | A kind of manufacturing process of aluminum-alloy wheel |
| CN208376417U (en) * | 2018-07-11 | 2019-01-15 | 宁波自由者汽车部件有限公司 | A kind of automotive hub improving intensity using detachable spoke |
| CN110238619A (en) * | 2019-06-28 | 2019-09-17 | 内蒙古华唐铝业有限公司 | A kind of manufacture aluminium alloy wheel hub process flow system |
| CN210548032U (en) * | 2019-09-12 | 2020-05-19 | 东莞市青鸟金属材料有限公司 | Aluminum ingot casting molding cooling device |
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| CN111660067B (en) | 2022-07-12 |
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