CN106825218A - A kind of preparation technology of bearing wheed spoke high - Google Patents
A kind of preparation technology of bearing wheed spoke high Download PDFInfo
- Publication number
- CN106825218A CN106825218A CN201710024679.1A CN201710024679A CN106825218A CN 106825218 A CN106825218 A CN 106825218A CN 201710024679 A CN201710024679 A CN 201710024679A CN 106825218 A CN106825218 A CN 106825218A
- Authority
- CN
- China
- Prior art keywords
- spoke
- punching
- flitch
- compressing
- axis hole
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/268—Making other particular articles wheels or the like wheels having spokes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Abstract
The present invention relates to automotive rim technical field, especially a kind of preparation technology of bearing wheed spoke high, comprises the following steps：Standby line, punching, compressing, spoke housing full circle, the shaping of spoke axis hole, play bolt hole and polishing, spray painting.Spoke is made of flitch punching press and compressing technique, punching and it is compressing when use Technology for Heating Processing, traditional spoke is changed using cold compaction and the technique of die casting, make spoke be processed into product it is faster, and punching and it is compressing when can be avoided to flitch structural damage in itself using Technology for Heating Processing, ensure the original intensity of flitch, while eliminating the quenching technical in later stage, greatly improve the Spoke Strength for processing.
Description
Technical field
The present invention relates to automotive rim technical field, more particularly to a kind of preparation technology of bearing wheed spoke high.
Background technology
Spoke is the device that wheel rim and wheel hub are connected on wheel, is used to protect the wheel rim of wheel, spoke.Due in garage
During sailing, the stress of spoke is extremely complex, therefore, if the insufficient strength of the spoke for manufacturing, easily in bolt hole and
Disposed at air vent is cracked.Such crackle can undoubtedly produce huge destruction for spoke, wheel, make spoke, wheel
Rim produces serious deformation, so as to most likely result in the generation of traffic accident.Accordingly, it would be desirable to be carried out to the manufacture method of spoke excellent
Change, make the intensity of its spoke for manufacturing higher, we release a kind of preparation technology of bearing wheed spoke high to this.
The content of the invention
The invention aims to solve shortcoming present in prior art, and the bearing wheed spoke a kind of high for proposing
Preparation technology.
To achieve these goals, present invention employs following technical scheme：
A kind of preparation technology of bearing wheed spoke high is designed, is comprised the following steps：
S1, standby line, prepare for suppressing the press and mould of spoke shape, the flitch for manufacturing spoke and for taking turns
The stamping machine and stamping mold of spoke punching；
S2, punching, by punching die be arranged on stamping machine on, will treat punching flitch put into it is progressively pre- in high temperature furnace
Heat, at 780 DEG C -950 DEG C, preheating time is controlled in 15min-20min, and the flitch after the completion of preheating is put into for preheating temperature control
The punching press of axis hole is carried out on punching die, and punch work is carried out at 780 DEG C -950 DEG C；
It is S3, compressing, will complete to rush axis hole and be not less than 700 DEG C of flitch to be placed again into being heated in high temperature furnace, work as material
Plate is again heated to be put at 780 DEG C -950 DEG C for being suppressed on compressing mould, completes the first one-step forming of spoke
Work, compressing spoke is normally cooled down under room temperature environment, coated in the press face of compacting tool set for heat-insulated resistance to height
Warm coating；
S4, spoke housing full circle, compressing spoke carry out the full circle of housing by special spoke rounding device；
S5, spoke axis hole shaping, the spoke for completing full circle is carried out the cutting and repair of axis hole by lathe；
S6, bolt hole is beaten, bolt hole is equidistantly got on the outside of the axis hole of spoke by drilling machine；
S7, polishing, spray painting, are finally polished spoke, except burr removing, and are painted.
Preferably, the spoke carries out aiding in adding by heater in punch process to the flitch being punched out
Heat, it is ensured that temperature of the flitch when punching is completed is not less than 700 DEG C.
Preferably, the high-temperaure coating for being coated on the compacting tool set is at least three layers, and high-temperaure coating selects in the market
The conventional high-temperature resistant coating of high-temperature metal product processing industry, the high-temperature resistant coating of selection is at least resistant to 1500 DEG C.
Preferably, the punching die also goes out air vent simultaneously, makes the work of axis hole and air vent while carrying out, and
One-shot forming.
A kind of preparation technology of bearing wheed spoke high proposed by the present invention, beneficial effect is：Spoke is rushed using flitch
Pressure and compressing technique are made, punching and it is compressing when use Technology for Heating Processing, change traditional spoke using cold
Compacting and die casting technique, make spoke be processed into product it is faster, and punching and it is compressing when using heat treatment work
Skill can be avoided to flitch structural damage in itself, it is ensured that the original intensity of flitch, while eliminating the quenching technical in later stage, make to add
Work Spoke Strength out is greatly improved.
Specific embodiment
In below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Embodiment one
A kind of preparation technology of bearing wheed spoke high, comprises the following steps：
S1, standby line, prepare for suppressing the press and mould of spoke shape, the flitch for manufacturing spoke and for taking turns
The stamping machine and stamping mold of spoke punching；
S2, punching, by punching die be arranged on stamping machine on, will treat punching flitch put into it is progressively pre- in high temperature furnace
Heat, at 780 DEG C, preheating time is controlled in 15min, the flitch after the completion of preheating is put into punching die enterprising for preheating temperature control
The punching press of row axis hole, and punch work carries out at 780 DEG C, spoke is in punch process by heater to rushing
The flitch in hole carries out auxiliary heating, it is ensured that temperature of the flitch when punching is completed is not less than 700 DEG C, and punching die is also gone out simultaneously
Air vent, makes the work of axis hole and air vent while carrying out, and one-shot forming；
It is S3, compressing, will complete to rush axis hole and be not less than 700 DEG C of flitch to be placed again into being heated in high temperature furnace, work as material
Plate is again heated to be put at 780 DEG C for being suppressed on compressing mould, completes the preliminary shaping work of spoke, pressure
It is made the spoke of type normally to be cooled down under room temperature environment, is coated in the press face of compacting tool set for heat-insulated high-temperaure coating,
The high-temperaure coating coated on compacting tool set is at least three layers, and high-temperaure coating selects in the market high-temperature metal product processing industry
Conventional high-temperature resistant coating, the high-temperature resistant coating of selection is at least resistant to 1500 DEG C；
S4, spoke housing full circle, compressing spoke carry out the full circle of housing by special spoke rounding device；
S5, spoke axis hole shaping, the spoke for completing full circle is carried out the cutting and repair of axis hole by lathe；
S6, bolt hole is beaten, bolt hole is equidistantly got on the outside of the axis hole of spoke by drilling machine；
S7, polishing, spray painting, are finally polished spoke, except burr removing, and are painted.
Embodiment two
A kind of preparation technology of bearing wheed spoke high, comprises the following steps：
S1, standby line, prepare for suppressing the press and mould of spoke shape, the flitch for manufacturing spoke and for taking turns
The stamping machine and stamping mold of spoke punching；
S2, punching, by punching die be arranged on stamping machine on, will treat punching flitch put into it is progressively pre- in high temperature furnace
Heat, at 830 DEG C, preheating time is controlled in 16min, the flitch after the completion of preheating is put into punching die enterprising for preheating temperature control
The punching press of row axis hole, and punch work carries out at 830 DEG C, spoke is in punch process by heater to rushing
The flitch in hole carries out auxiliary heating, it is ensured that temperature of the flitch when punching is completed is not less than 700 DEG C, and punching die is also gone out simultaneously
Air vent, makes the work of axis hole and air vent while carrying out, and one-shot forming；
It is S3, compressing, will complete to rush axis hole and be not less than 700 DEG C of flitch to be placed again into being heated in high temperature furnace, work as material
Plate is again heated to be put at 830 DEG C for being suppressed on compressing mould, completes the preliminary shaping work of spoke, pressure
It is made the spoke of type normally to be cooled down under room temperature environment, is coated in the press face of compacting tool set for heat-insulated high-temperaure coating,
The high-temperaure coating coated on compacting tool set is at least three layers, and high-temperaure coating selects in the market high-temperature metal product processing industry
Conventional high-temperature resistant coating, the high-temperature resistant coating of selection is at least resistant to 1500 DEG C；
S4, spoke housing full circle, compressing spoke carry out the full circle of housing by special spoke rounding device；
S5, spoke axis hole shaping, the spoke for completing full circle is carried out the cutting and repair of axis hole by lathe；
S6, bolt hole is beaten, bolt hole is equidistantly got on the outside of the axis hole of spoke by drilling machine；
S7, polishing, spray painting, are finally polished spoke, except burr removing, and are painted.
Embodiment three
A kind of preparation technology of bearing wheed spoke high, comprises the following steps：
S1, standby line, prepare for suppressing the press and mould of spoke shape, the flitch for manufacturing spoke and for taking turns
The stamping machine and stamping mold of spoke punching；
S2, punching, by punching die be arranged on stamping machine on, will treat punching flitch put into it is progressively pre- in high temperature furnace
Heat, at 880 DEG C, preheating time is controlled in 18min, the flitch after the completion of preheating is put into punching die enterprising for preheating temperature control
The punching press of row axis hole, and punch work carries out at 880 DEG C, spoke is in punch process by heater to rushing
The flitch in hole carries out auxiliary heating, it is ensured that temperature of the flitch when punching is completed is not less than 700 DEG C, and punching die is also gone out simultaneously
Air vent, makes the work of axis hole and air vent while carrying out, and one-shot forming；
It is S3, compressing, will complete to rush axis hole and be not less than 700 DEG C of flitch to be placed again into being heated in high temperature furnace, work as material
Plate is again heated to be put at 880 DEG C for being suppressed on compressing mould, completes the preliminary shaping work of spoke, pressure
It is made the spoke of type normally to be cooled down under room temperature environment, is coated in the press face of compacting tool set for heat-insulated high-temperaure coating,
The high-temperaure coating coated on compacting tool set is at least three layers, and high-temperaure coating selects in the market high-temperature metal product processing industry
Conventional high-temperature resistant coating, the high-temperature resistant coating of selection is at least resistant to 1500 DEG C；
S4, spoke housing full circle, compressing spoke carry out the full circle of housing by special spoke rounding device；
S5, spoke axis hole shaping, the spoke for completing full circle is carried out the cutting and repair of axis hole by lathe；
S6, bolt hole is beaten, bolt hole is equidistantly got on the outside of the axis hole of spoke by drilling machine；
S7, polishing, spray painting, are finally polished spoke, except burr removing, and are painted.
Example IV
A kind of preparation technology of bearing wheed spoke high, comprises the following steps：
S1, standby line, prepare for suppressing the press and mould of spoke shape, the flitch for manufacturing spoke and for taking turns
The stamping machine and stamping mold of spoke punching；
S2, punching, by punching die be arranged on stamping machine on, will treat punching flitch put into it is progressively pre- in high temperature furnace
Heat, at 950 DEG C, preheating time is controlled in 20min, the flitch after the completion of preheating is put into punching die enterprising for preheating temperature control
The punching press of row axis hole, and punch work carries out at 950 DEG C, spoke is in punch process by heater to rushing
The flitch in hole carries out auxiliary heating, it is ensured that temperature of the flitch when punching is completed is not less than 700 DEG C, and punching die is also gone out simultaneously
Air vent, makes the work of axis hole and air vent while carrying out, and one-shot forming；
It is S3, compressing, will complete to rush axis hole and be not less than 700 DEG C of flitch to be placed again into being heated in high temperature furnace, work as material
Plate is again heated to be put at 950 DEG C for being suppressed on compressing mould, completes the preliminary shaping work of spoke, pressure
It is made the spoke of type normally to be cooled down under room temperature environment, is coated in the press face of compacting tool set for heat-insulated high-temperaure coating,
The high-temperaure coating coated on compacting tool set is at least three layers, and high-temperaure coating selects in the market high-temperature metal product processing industry
Conventional high-temperature resistant coating, the high-temperature resistant coating of selection is at least resistant to 1500 DEG C；
S4, spoke housing full circle, compressing spoke carry out the full circle of housing by special spoke rounding device；
S5, spoke axis hole shaping, the spoke for completing full circle is carried out the cutting and repair of axis hole by lathe；
S6, bolt hole is beaten, bolt hole is equidistantly got on the outside of the axis hole of spoke by drilling machine；
S7, polishing, spray painting, are finally polished spoke, except burr removing, and are painted.
Spoke is made of flitch punching press and compressing technique, punching and it is compressing when using heat treatment work
Skill, changes technique of traditional spoke using cold compaction and die casting, make spoke to be processed into product faster, and in punching and
Can be avoided to flitch structural damage in itself using Technology for Heating Processing when compressing, it is ensured that the original intensity of flitch, while saving
The quenching technical in later stage has been removed, the Spoke Strength for processing is greatly improved.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (4)
1. a kind of preparation technology of bearing wheed spoke high, it is characterised in that comprise the following steps：
S1, standby line, prepare to rush for suppressing the press and mould of spoke shape, the flitch for manufacturing spoke and for spoke
The stamping machine and stamping mold in hole；
S2, punching, punching die is arranged on stamping machine, will be treated that the flitch of punching is put into high temperature furnace and is progressively preheated, in advance
At 780 DEG C -950 DEG C, preheating time is controlled in 15min-20min hot temperature control, and the flitch after the completion of preheating is put into punching
The punching press of axis hole is carried out on mould, and punch work is carried out at 780 DEG C -950 DEG C；
It is S3, compressing, will complete to rush axis hole and be not less than 700 DEG C of flitch to be placed again into being heated in high temperature furnace, when flitch again
It is secondary to be heated to be put at 780 DEG C -950 DEG C for being suppressed on compressing mould, the preliminary shaping work of spoke is completed,
Compressing spoke is normally cooled down under room temperature environment, is coated in the press face of compacting tool set and is applied for heat-insulated high temperature resistant
Layer；
S4, spoke housing full circle, compressing spoke carry out the full circle of housing by special spoke rounding device；
S5, spoke axis hole shaping, the spoke for completing full circle is carried out the cutting and repair of axis hole by lathe；
S6, bolt hole is beaten, bolt hole is equidistantly got on the outside of the axis hole of spoke by drilling machine；
S7, polishing, spray painting, are finally polished spoke, except burr removing, and are painted.
2. the preparation technology of a kind of bearing wheed spoke high according to claim 1, it is characterised in that the spoke is in punching
Auxiliary heating is carried out to the flitch being punched out by heater during hole, it is ensured that temperature of the flitch when punching is completed
Degree is not less than 700 DEG C.
3. a kind of preparation technology of bearing wheed spoke high according to claim 1, it is characterised in that the compacting tool set
The high-temperaure coating of upper coating is at least three layers, high-temperaure coating from the market high-temperature metal product processing industry commonly use it is resistance to
High-temperature coatings, the high-temperature resistant coating of selection is at least resistant to 1500 DEG C.
4. a kind of preparation technology of bearing wheed spoke high according to claim 1, it is characterised in that the punching die
Air vent also is gone out simultaneously, makes the work of axis hole and air vent while carrying out, and one-shot forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710024679.1A CN106825218A (en) | 2017-01-13 | 2017-01-13 | A kind of preparation technology of bearing wheed spoke high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710024679.1A CN106825218A (en) | 2017-01-13 | 2017-01-13 | A kind of preparation technology of bearing wheed spoke high |
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| Publication Number | Publication Date |
|---|---|
| CN106825218A true CN106825218A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710024679.1A Pending CN106825218A (en) | 2017-01-13 | 2017-01-13 | A kind of preparation technology of bearing wheed spoke high |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520581A (en) * | 2017-08-22 | 2017-12-29 | 苏州普热斯勒先进成型技术有限公司 | A kind of super-high strength steel wheel spoke and its processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721130A (en) * | 2005-06-27 | 2006-01-18 | 梁绪忠 | Hot forming process for spoke |
| CN1923446A (en) * | 2006-09-12 | 2007-03-07 | 李新志 | Processing method of lorry high-intensity wheel rib |
| CN101607289A (en) * | 2009-07-15 | 2009-12-23 | 河北省送变电公司线路器材厂 | Hot punching production process of high-strength angle steel |
| WO2012084177A1 (en) * | 2010-12-23 | 2012-06-28 | Tata Steel Nederland Technology B.V. | Method of manufacturing a metal vehicle wheel and vehicle wheel |
| CN103737325A (en) * | 2013-11-13 | 2014-04-23 | 江苏凯特汽车部件有限公司 | Manufacturing process for large-diameter automobile aluminum alloy wheel decorative cover larger than 26 inches |
| CN104551552A (en) * | 2014-11-25 | 2015-04-29 | 浙江金固股份有限公司 | Thermally-formed wheel manufacturing method |
| CN104772386A (en) * | 2015-03-17 | 2015-07-15 | 浙江金固股份有限公司 | Machining method for spoke of wheel |
-
2017
- 2017-01-13 CN CN201710024679.1A patent/CN106825218A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721130A (en) * | 2005-06-27 | 2006-01-18 | 梁绪忠 | Hot forming process for spoke |
| CN1923446A (en) * | 2006-09-12 | 2007-03-07 | 李新志 | Processing method of lorry high-intensity wheel rib |
| CN101607289A (en) * | 2009-07-15 | 2009-12-23 | 河北省送变电公司线路器材厂 | Hot punching production process of high-strength angle steel |
| WO2012084177A1 (en) * | 2010-12-23 | 2012-06-28 | Tata Steel Nederland Technology B.V. | Method of manufacturing a metal vehicle wheel and vehicle wheel |
| CN103737325A (en) * | 2013-11-13 | 2014-04-23 | 江苏凯特汽车部件有限公司 | Manufacturing process for large-diameter automobile aluminum alloy wheel decorative cover larger than 26 inches |
| CN104551552A (en) * | 2014-11-25 | 2015-04-29 | 浙江金固股份有限公司 | Thermally-formed wheel manufacturing method |
| CN104772386A (en) * | 2015-03-17 | 2015-07-15 | 浙江金固股份有限公司 | Machining method for spoke of wheel |
Non-Patent Citations (1)
| Title |
|---|
| 唐远志: "《汽车车身制造技术基础》", 31 January 2014, 合肥工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520581A (en) * | 2017-08-22 | 2017-12-29 | 苏州普热斯勒先进成型技术有限公司 | A kind of super-high strength steel wheel spoke and its processing method |
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Application publication date: 20170613 |