CN102151795A - Back casting method of hub of electric motorcycle and die - Google Patents
Back casting method of hub of electric motorcycle and die Download PDFInfo
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- CN102151795A CN102151795A CN2011100734463A CN201110073446A CN102151795A CN 102151795 A CN102151795 A CN 102151795A CN 2011100734463 A CN2011100734463 A CN 2011100734463A CN 201110073446 A CN201110073446 A CN 201110073446A CN 102151795 A CN102151795 A CN 102151795A
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- wheel hub
- valve
- electric motorcycle
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- die
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Abstract
The invention discloses a back casting method of a hub of an electric motorcycle, which comprises the steps of: arranging a hub cavity formed by the cavities of an upper die, a lower die and a side die as an inverted structure the hub end cover cavity of which is positioned at the lower part; arranging a casting hole at the top of the hub cavity; putting an insert in the hub cavity and positioning the insert; then closing the upper die; and finally pouring liquid aluminum through the casting hole so as to cast and form the hub of the hub of the electric motorcycle. A die applied for conducting the back casting method comprises the upper die, the lower die and the side die which are matched mutually, wherein the cavities of the upper die, the lower die and the side die form the hub cavity; the hub cavity is an inverted structure the hub end cover cavity of which is positioned at the lower part; the hub end cover cavity is arranged on the lower die; and the casting hole is arranged at the top of the upper die. The back casting process is a casting method in which the end cover is arranged at the lower part and the insert is arranged at the upper part, and enables the blank thickness of the hub end cover to be 0.1 to 0.5 millimeter larger than that of the finished product; and the weight of the hub blank of the electric motorcycle produced by adopting the die and the process is only half of that of the hub produced by the traditional casting method.
Description
Technical field
The present invention relates to electric motorcycle wheel hub casting technique.
Background technology
The end cap that general electric vehicle hub adopts is last, inserts under the casting mode.But battery-operated motor cycle because of its particular structure (end cap and wheel hub one, as shown in the figure), end cap partial mirror diameter reaches 300mm, as adopts common positive pouring technique to be easy to generate to contract and send casting flaws such as slag inclusion; And will be to the effective feeding of bank spare patrix bank spare end face, it is thick will to increase meat, make whole electric motorcycle wheel hub hair training end cap thickness will by present 4.5 (+0.5^+1) MM directly becomes 10-15MM, the aluminium consumption is bigger.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of electric motorcycle wheel hub uphill running casting method and corresponding casting die, reduces the blank thickness of casting rear end cap, saves processing cost.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of electric motorcycle wheel hub uphill running casting method, it is characterized in that: the wheel hub die cavity that constitutes by the combination of lumens of upper die and lower die and limit mould be set to the wheel hub end housing chamber under inverted structure, casting gate is located at wheel hub die cavity top, put into inserts and to its location, the patrix that closes then injects aluminium liquid from casting gate at last and carries out the cast molding of electric motorcycle wheel hub.
Preferably, counterdie is provided with some support locating pieces and forms a supporting surface, described each inserts is installed in supports on the locating piece.
Preferably, described limit mould is provided with a valve that the is used for moulding valve cock mounting plane hole of inserting, and valve is installed in described valve is inserted the hole is inserted, and by securing member described valve is inserted and to be fixed on the mould of limit.
Further, after the wheel hub demoulding, inserts and push rod contact-making surface are partly carried out soldering.In uphill running casting process, support inserts owing to there is the 4-6 root to support locating piece, so inserts and push rod contact-making surface form a sealing, aluminum alloy materials can't be filled into, forms the space.Therefore need carry out soldering after the wheel hub demoulding, heat-treat then to eliminate stress, and the refinement internal crystal structure promotes overall construction intensity.
The present invention also provides a kind of mould that is applied to electric motorcycle wheel hub uphill running casting method, comprise the upper die and lower die and the limit mould that cooperatively interact, the combination of lumens of upper die and lower die and limit mould constitutes the wheel hub die cavity, it is characterized in that: described wheel hub die cavity be the wheel hub end housing chamber under inverted structure, described wheel hub end housing chamber is arranged on the counterdie, and described patrix top is provided with casting gate.
Preferably, described counterdie is equipped with and supports locating piece support inserts, and described support locating piece upper end is provided with a step, the bottom of the described inserts of planar support of getting out of a predicament or an embarrassing situation of described step.
Preferably, described patrix lateral surface is the inclined-plane, patrix location to the inboard inclination in patrix lower end, and inclined-plane, described limit mould corresponding patrix location is provided with inclined-plane, mould location, limit.In uphill running casting process, at first to solve the relative positioning problem of inserts and whole wheel hub.For guaranteeing the position degree of inserts, counterdie is installed the 4-6 root and is supported locating piece, forms a supporting surface, to place inserts, as first location.The gradient targeting part of patrix continues in the matched moulds process at patrix according to inserts internal diameter automatic capturing location then, and by rational fit tolerance, further the centering inserts is finally located.
Preferably, described limit mould is provided with a valve that the is used for moulding valve cock mounting plane hole of inserting, and valve is installed in described valve is inserted the hole is inserted, and described limit mould is provided with valve inserted and is fastened on insert fastener in the hole of described valve.This air valve structure utilizes the die insert casting, still leaves the precasting platform behind wheel rim die cavity finish turning, does not need to arrange this procedure of counterbore after boring the oblique through hole of valve the vacuum valve cock can be installed directly again, and satisfies the air-tightness requirement.
Preferably, described fastener comprises and the described valve vertical screwed hole in hole of inserting, be provided with the fastening described valve of a holding screw in the described screwed hole and insert, described valve is inserted and is provided with a binding groove that snaps in for described holding screw top over against described holding screw position.
Uphill running casting process of the present invention is that end cap is descending, and inserts makes the wheel hub end housing blank thickness only than the thick 0.1^0.5MM of finished product at last casting method, if outward appearance is not had specific (special) requirements, can directly accomplish finished size.The blank weight of the electric motorcycle wheel hub of the production of employing mould and this technology only accounts for half of existing casting mode, and manufacturing procedure can be simplified, and has saved cost greatly, and product quality does not descend simultaneously.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is for supporting the front view of locating piece;
Fig. 3 is for supporting the vertical view of locating piece;
The structural representation that Fig. 4 inserts for valve.
The specific embodiment
In conjunction with the embodiment of Fig. 1 to description electric motorcycle wheel hub uphill running casting method shown in Figure 4, the wheel hub die cavity that constitutes by the combination of lumens of patrix 1, counterdie 2 and limit mould 3 be set to wheel hub end housing chamber 21 under inverted structure, casting gate 9 is located at wheel hub die cavity top, put into inserts and to its location, the patrix that closes then injects aluminium liquid from casting gate at last and carries out the cast molding of electric motorcycle wheel hub.Wherein, counterdie is provided with some support locating pieces 7 and forms a supporting surface, described each inserts 6 is installed in supports on the locating piece 7.Described limit mould 3 is provided with a valve that the is used for moulding valve cock mounting plane hole of inserting, and valve is installed in described valve is inserted the hole is inserted 4, and by securing member described valve is inserted and to be fixed on the limit mould 3.In addition, after wheel hub 8 demouldings, to carry out soldering to inserts and push rod contact-making surface part.
And be applied to the mould of electric motorcycle wheel hub uphill running casting method, comprise the patrix 1, counterdie 2 and the limit mould 3 that cooperatively interact, the combination of lumens of patrix 1, counterdie 2 and limit mould 3 constitutes the wheel hub die cavity, described wheel hub die cavity be wheel hub end housing chamber 21 under inverted structure, described wheel hub end housing chamber 21 is arranged on the counterdie, and described patrix top is provided with casting gate 9.Described counterdie is equipped with and supports locating piece 7 support inserts 6, and described support locating piece upper end is provided with a step, and the bottom of described inserts is supported on the plane 71 of getting out of a predicament or an embarrassing situation of described step.Described patrix lateral surface is the inclined-plane 11, patrix location to the inboard inclination in patrix lower end, and inclined-plane, described limit mould corresponding patrix location is provided with inclined-plane, mould location, limit.The self-locking grooves 12 to center, patrix top indent that inclined-plane, patrix location is provided with, inclined-plane, described limit mould location is provided with the self-locking projection 13 that snaps in the described self-locking grooves.Described limit mould 3 is provided with a valve that the is used for moulding valve cock mounting plane hole of inserting, and valve is installed in described valve is inserted the hole is inserted 4, and described limit mould 3 is provided with valve inserted and 4 is fastened on insert fastener in the hole of described valve.Described fastener comprises and the described valve vertical screwed hole 5 in hole of inserting, be provided with a holding screw 51 fastening described valves in the described screwed hole and insert 4, described valve is inserted and 4 is provided with a binding groove 41 that snaps in for described holding screw top over against described holding screw 51 positions.
Claims (9)
1. electric motorcycle wheel hub uphill running casting method, it is characterized in that: the wheel hub die cavity that constitutes by the combination of lumens of patrix (1), counterdie (2) and limit mould (3) be set to wheel hub end housing chamber (21) under inverted structure, casting gate (9) is located at wheel hub die cavity top, put into inserts (6) and to its location, the patrix that closes then injects aluminium liquid from casting gate at last and carries out the cast molding of electric motorcycle wheel hub.
2. according to the described a kind of electric motorcycle wheel hub uphill running casting method of claim 1, it is characterized in that: counterdie is provided with some support locating pieces (7) and forms a supporting surface, described each inserts (6) is installed in supports on the locating piece (7).
3. according to the described a kind of electric motorcycle wheel hub uphill running casting method of claim 1, it is characterized in that: described limit mould (3) is provided with a valve that the is used for moulding valve cock mounting plane hole of inserting, valve is installed in described valve is inserted the hole is inserted (4), and by securing member with described valve insert (4) be fixed on the limit mould (3).
4. according to claim 1 or 2 or 3 described a kind of electric motorcycle wheel hub uphill running casting methods, it is characterized in that: after wheel hub (8) demoulding, inserts and push rod contact-making surface are partly carried out soldering.
5. electric motorcycle wheel hub casting die, comprise the patrix (1), counterdie (2) and the limit mould (3) that cooperatively interact, the combination of lumens of patrix (1), counterdie (2) and limit mould (3) constitutes the wheel hub die cavity, it is characterized in that: described wheel hub die cavity be wheel hub end housing chamber (21) under inverted structure, described wheel hub end housing chamber (21) is arranged on the counterdie, and described patrix top is provided with casting gate (9).
6. electric motorcycle wheel hub casting die according to claim 5, it is characterized in that: described counterdie is equipped with and supports locating piece (7) support inserts (6), described support locating piece upper end is provided with a step, and the bottom of described inserts is supported on the plane of getting out of a predicament or an embarrassing situation (71) of described step.
7. electric motorcycle wheel hub casting die according to claim 6 is characterized in that: described patrix lateral surface is for locating inclined-plane (11) to the patrix of the inboard inclination in patrix lower end, and inclined-plane, described limit mould corresponding patrix location is provided with inclined-plane, mould location, limit.
8. according to claim 5 or 6 or 7 described electric motorcycle wheel hub casting dies, it is characterized in that: described limit mould (3) is provided with a valve that the is used for moulding valve cock mounting plane hole of inserting, valve is installed in described valve is inserted the hole is inserted (4), described limit mould (3) is provided with valve inserted (4) and is fastened on insert fastener in the hole of described valve.
9. electric motorcycle wheel hub casting die according to claim 8, it is characterized in that: described fastener comprises and the described valve vertical screwed hole in hole (5) of inserting, be provided with the fastening described valve of a holding screw (51) in the described screwed hole and insert (4), described valve insert (4) be provided with a binding groove (41) that snaps in for described holding screw top over against described holding screw (51) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100734463A CN102151795A (en) | 2011-03-25 | 2011-03-25 | Back casting method of hub of electric motorcycle and die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100734463A CN102151795A (en) | 2011-03-25 | 2011-03-25 | Back casting method of hub of electric motorcycle and die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102151795A true CN102151795A (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100734463A Pending CN102151795A (en) | 2011-03-25 | 2011-03-25 | Back casting method of hub of electric motorcycle and die |
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| CN (1) | CN102151795A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487456A (en) * | 1980-01-30 | 1984-12-11 | Swiss Aluminium Ltd. | Wheel disc cast in situ with interlocking rim |
| JP2001300690A (en) * | 2000-04-19 | 2001-10-30 | Hitachi Metals Ltd | Light alloy-made wheel for vehicle and producing method thereof |
| JP2003010945A (en) * | 2001-06-25 | 2003-01-15 | Chuo Motor Wheel Co Ltd | Device of casting wheel for automobile |
| JP2004358510A (en) * | 2003-06-04 | 2004-12-24 | Asahi Tec Corp | Casting die for wheel of two-wheeled vehicle |
| JP2005329827A (en) * | 2004-05-20 | 2005-12-02 | Suzuki Motor Corp | Cast wheel for rear wheel of motorcycle |
| CN201329406Y (en) * | 2009-01-20 | 2009-10-21 | 芜湖黄燕实业有限公司 | Gravitation casting mold for automobile aluminium alloy wheel hub |
| CN201482938U (en) * | 2009-08-04 | 2010-05-26 | 何灿东 | Motorcycle ultra-wide rim aluminum alloy hub casting die |
| CN101934361A (en) * | 2010-08-20 | 2011-01-05 | 江苏凯特汽车部件有限公司 | Wide rim deep LIP automobile aluminium alloy wheel casting mould filling exhaust method |
| CN201760581U (en) * | 2010-09-21 | 2011-03-16 | 中信戴卡轮毂制造股份有限公司 | Low pressure casting die for improving the mechanical properties of aluminium alloy wheel rim |
| CN202028745U (en) * | 2011-03-25 | 2011-11-09 | 浙江今飞机械集团有限公司 | Mould for casting wheel hubs of electric motorcycle |
-
2011
- 2011-03-25 CN CN2011100734463A patent/CN102151795A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487456A (en) * | 1980-01-30 | 1984-12-11 | Swiss Aluminium Ltd. | Wheel disc cast in situ with interlocking rim |
| JP2001300690A (en) * | 2000-04-19 | 2001-10-30 | Hitachi Metals Ltd | Light alloy-made wheel for vehicle and producing method thereof |
| JP2003010945A (en) * | 2001-06-25 | 2003-01-15 | Chuo Motor Wheel Co Ltd | Device of casting wheel for automobile |
| JP2004358510A (en) * | 2003-06-04 | 2004-12-24 | Asahi Tec Corp | Casting die for wheel of two-wheeled vehicle |
| JP2005329827A (en) * | 2004-05-20 | 2005-12-02 | Suzuki Motor Corp | Cast wheel for rear wheel of motorcycle |
| CN201329406Y (en) * | 2009-01-20 | 2009-10-21 | 芜湖黄燕实业有限公司 | Gravitation casting mold for automobile aluminium alloy wheel hub |
| CN201482938U (en) * | 2009-08-04 | 2010-05-26 | 何灿东 | Motorcycle ultra-wide rim aluminum alloy hub casting die |
| CN101934361A (en) * | 2010-08-20 | 2011-01-05 | 江苏凯特汽车部件有限公司 | Wide rim deep LIP automobile aluminium alloy wheel casting mould filling exhaust method |
| CN201760581U (en) * | 2010-09-21 | 2011-03-16 | 中信戴卡轮毂制造股份有限公司 | Low pressure casting die for improving the mechanical properties of aluminium alloy wheel rim |
| CN202028745U (en) * | 2011-03-25 | 2011-11-09 | 浙江今飞机械集团有限公司 | Mould for casting wheel hubs of electric motorcycle |
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Application publication date: 20110817 |