CN105478721A - Split ejection rod of mold for low-pressure casting of aluminum alloy hubs as well as mold comprising split ejection rod - Google Patents
Split ejection rod of mold for low-pressure casting of aluminum alloy hubs as well as mold comprising split ejection rod Download PDFInfo
- Publication number
- CN105478721A CN105478721A CN201610052699.5A CN201610052699A CN105478721A CN 105478721 A CN105478721 A CN 105478721A CN 201610052699 A CN201610052699 A CN 201610052699A CN 105478721 A CN105478721 A CN 105478721A
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- CN
- China
- Prior art keywords
- push rod
- ejection rod
- split
- mold
- low pressure
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- 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
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Abstract
The invention provides a split ejection rod of a mold for low-pressure casting of aluminum alloy hubs as well as the mold comprising the split ejection rod. The split ejection rod of the mold for low-pressure casting of the aluminum alloy hubs comprises an ejection rod cap (301), an ejection rod thick end (302), a nut (304) and an ejection rod thin end (306) and is characterized in that the ejection rod cap (301) and the ejection rod thick end (302) are in head-to-tail connection, and the ejection rod thick end (302) and the ejection rod thin end (306) are connected through the nut (304). The technical scheme has the advantages as follows: (1) with the adoption of the novel split ejection rod, four steps including mounting and dismounting of 14-18 bolts at the upper part of the ejection rod as well as mounting and dismounting of an upper plate of the ejection rod can be omitted during replacement of a large ejection rod; (2) with the adoption of the novel split ejection rod, the number of times of usage of an overhead crane and a hanging appliance can be decreased by two, and potential safety hazards are reduced; (3) with the adoption of the novel split ejection rod, all that is required during replacement is to replace the lower part of the ejection rod, the upper part of the ejection rod can be reused, and the cost is reduced.
Description
Technical field
The present invention relates to low pressure casting and produce the mould applications of aluminium alloy wheel hub, relate to particularly a kind of for blank be separated with mould Novel separated push rod and mould.
Background technology
In the process of low pressure casting aluminum alloy wheel hub, a typical production procedure includes: (1) mould is mounted to die casting machine; (2) die casting machine supercharging makes aluminium liquid approach stalk back-pressure to mold cavity; (3) mold cools down is to completing; (4) limit mould is opened, and the related blank of backform rises; (5) splicing pallet proceeds to mold center position automatically; (6) blank under push rod top, dish catches; (7) blank is taken out of by pallet; (8) die casting single cycle one cycle stops.
Low-pressure casting hub die forms primarily of four parts: backform (comprising frock), limit mould (comprising frock) and bed die (comprising frock) form.Wherein backform is provided with push rod: inner rim place is little push rod, and flange is large push rod (being generally 5).Low-pressure casting hub die generally produces 5-6 order of classes or grades at school (8 hours dutys), and mould unloads the goods from the airplane repairing.
The installation diagram of the large push rod of flange as shown in Fig. 1 identification division, and can see its concrete structure in fig. 2.The technical requirement of the large push rod of the routine described in Fig. 2 is: heat treatment HRC50 ~ 55, wedge angle chamfering 0.5 × 45 degree, length L require to carry out according to die assembly.According to Fig. 2, conventional large push rod is made up of conventional push rod cap (201), conventional push rod butt end (202), conventional conical surface connecting portion (203) and conventional push rod taper end (204).In a concrete large push rod of routine, conventional push rod cap (201) is for cylindrical, and its diameter is 26mm, and its height is 9mm; Conventional push rod butt end (202) is cylinder, and its diameter is 20mm, its height is deducted conventional push rod cap (201), conventional conical surface connecting portion (203) and the high of conventional push rod taper end (204) by the design length of traditional push rod product and obtained; The drift angle of conventional conical surface connecting portion (203) is 120 degree, and the diameter of its one end is consistent with conventional push rod butt end (202), and the other end is consistent with conventional push rod taper end (204); The diameter of conventional push rod taper end (204) is 12mm, and its length is 120mm.Certainly, persons skilled in the art will be appreciated that, may adopt the large push rod of the routine of other specifications and size in the middle of the general operation of this area, but its basic structure and Fig. 2 are consistent substantially.
Carry out in high efficiency production process using the large push rod of flange shown in Fig. 2 and the process units shown in Fig. 1, the replacing of the large push rod of flange has following 2 shortcomings: need more to renew push rod about the large push rod of (1) flange uses 15 order of classes or grades at school, conventional large push rod is integrated push rod, overall discarded during replacing, improve production cost; (2) when the large push rod of flange is changed, step is: the mandrel plate be placed in special racks, pull down 14-18 bolts that push rod upper plate is connected with mandrel plate, take off push rod upper plate, take off large push rod and change, install push rod upper plate of dismantling, and installs 14-18 bolts, complete.Its exchonge step is loaded down with trivial details and there is potential safety hazard.
Summary of the invention
Therefore, those skilled in the art wish to develop a kind of novel Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod for a long time, thus simplify large push rod replacing installation steps, reduce potential safety hazard, reduce costs.The object of the invention is to, design the large push rod of a kind of novel split for backform flange, change installation steps to simplify large push rod, reduce potential safety hazard, reduce costs.
In one aspect of the invention, provide a kind of Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod, described Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod is made up of push rod cap (301), push rod butt end (302), nut (304) and push rod taper end (306), it is characterized in that, described push rod cap (301) is connected with push rod butt end (302) head and the tail; Be connected by nut (304) between push rod butt end (302) with push rod taper end (306).
In the present invention is preferred, the diameter of described push rod butt end (302) is 18-22mm.
In the present invention is preferred further, the diameter of described push rod butt end (302) is 20mm.
In the present invention is preferred, the diameter of described push rod taper end (306) is 10-14mm.
In the present invention is preferred further, the diameter of described push rod taper end (306) is 12mm.
In the present invention is preferred, described one end that push rod butt end (302) is being connected to nut (304) comprises screw thread.
In the present invention is preferred further, described screw thread is the screw thread of 20 × 17mm.
In the present invention is preferred, described push rod taper end (306) comprises half-cone boss (305) in the one end being connected to nut (304).
In the present invention is preferred further, the diameter of described half-cone boss (305) is 18mm, and height is 8.3mm.
In another aspect of the present invention, provide a kind of Low Pressure Die Casting Die of Aluminum Wheel Castings, the push rod of described Low Pressure Die Casting Die of Aluminum Wheel Castings is previously described split push rod.
In other optimal technical scheme of the present invention, the following structural features of Novel separated push rod: 1. large push rod butt end (diameter 20mm) and taper end (diameter 12mm) junction are disconnected, the screw thread of butt end bottom design M20*17mm; 2. the half-cone boss of taper end upper design diameter 18*8.3mm, 3. designs one end with groove and is of a size of M20*0.5mm nut, be connected by butt end with taper end.The Novel separated push rod installation diagram redesigned is shown in Fig. 3, and Fig. 4 is seen on push rod top, and Fig. 5 is seen in push rod bottom, and nut is shown in Fig. 6.
In a preferred technical scheme of the present invention, the technical requirement of split push rod is: heat treatment HRC50 ~ 55, wedge angle chamfering 0.5 × 45 degree, length L require to carry out according to die assembly.
In other aspects of the present invention, additionally provide a kind of Low Pressure Die Casting Die of Aluminum Wheel Castings Novel separated push rod, comprise push rod top, big nut, push rod bottom.
In the present invention is preferred, push rod entirety is made up of three parts.
In the present invention is preferred, simplify large push rod with changing installation steps, reduce potential safety hazard.
In the present invention is preferred, only need changes push rod bottom in use procedure, reduce cost.
In the present invention is preferred, use is threaded, more reliably.
In the present invention is preferred, big nut and push rod lower end are that taper surface coordinates, and are convenient to the concentric of entirety and increase lifting surface area.
Technical scheme of the present invention has following advantage: (1) uses this Novel separated push rod, changes four steps that large push rod can reduce 14 ~ 18, dismounting push rod top bolt and dismounting push rod upper plate; (2) use this Novel separated push rod, reduce twice and use overhead traveling crane and suspender, decrease potential safety hazard; And (3) use this Novel separated push rod, only need change push rod bottom during replacing, push rod top is reusable, reduces cost.
Accompanying drawing explanation
Below, describe embodiment of the present invention in detail by reference to the accompanying drawings, wherein:
Fig. 1: the structural representation of the Low Pressure Die Casting Die of Aluminum Wheel Castings of prior art;
Fig. 2: the large push rod structure schematic diagram of the Low Pressure Die Casting Die of Aluminum Wheel Castings of prior art;
Fig. 3: the structural representation of the New type detachable push rod of the embodiment of the present invention 1;
Fig. 4: the push rod superstructure schematic diagram of the New type detachable push rod of the embodiment of the present invention 1;
Fig. 5: the push rod substructure schematic diagram of the New type detachable push rod of the embodiment of the present invention 1;
Fig. 6: the nut structure schematic diagram of the New type detachable push rod of the embodiment of the present invention 1, wherein Fig. 6 A is the vertical section structure schematic diagram of nut, and Fig. 6 B is the lateral part schematic cross-section of nut;
Fig. 7: the installment state schematic diagram of the New type detachable push rod of the embodiment of the present invention 1.
The push rod bottom of the inner space of 301-push rod cap, 302-push rod butt end, 303-push rod butt end screw thread, 304-nut, 305-push rod taper end screw thread, 306-push rod taper end, 601-nut, the push rod top of 701-installment state, the nut of 702-installment state and 703-installment state.
Detailed description of the invention
The specific embodiment of the present invention is as related to mutual alignment between the shape of each parts, structure, size, each several part and annexation, the effect of each several part and operation using method etc.Further detailed description, has more complete, accurate and deep understanding to help those skilled in the art to design of the present invention, technical scheme below.
embodiment 1
The Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod of the present embodiment is made up of push rod cap (301), push rod butt end (302), nut (304) and push rod taper end (306), it is characterized in that, described push rod cap (301) is connected with push rod butt end (302) head and the tail; Be connected by nut (304) between push rod butt end (302) with push rod taper end (306).The diameter of described push rod butt end (302) is 20mm, and the diameter of push rod taper end (306) is 12mm.One end that push rod butt end (302) is being connected to nut (304) comprises screw thread, and described screw thread is the screw thread of 20 × 17mm.Described push rod taper end (306) comprises half-cone boss (305) in the one end being connected to nut (304).The diameter of described half-cone boss (305) is 18mm, and height is 8.3mm.The technical requirement of split push rod is: heat treatment HRC50 ~ 55, wedge angle chamfering 0.5 × 45 degree, length L require to carry out according to die assembly.
Traditional push rod assembly manipulation carries out according to following method:
1. the corresponding hole of push rod lower plate is injected on push rod top, be generally five.
2. push rod upper plate is mounted to push rod lower plate, tightens 14 ~ 18 bolts;
3. by big nut cover to push rod bottom, it is intact whether the operative cooperation conical surface contacts;
4. related for big nut push rod bottom is mounted to push rod top, and tightens; And
5. mandrel plate is mounted to mold top holder.
In contrast to this, the split type push rod replacement operation of the present embodiment is carried out according to following method:
1. mandrel plate is dismantled, and handling is to specific purpose tool;
2. the spanner dismounting big nut of M20 is used;
3. push rod bottom is changed;
4. related for big nut push rod bottom is mounted to push rod top, and tightens; And
5. mandrel plate is mounted to mold top holder.
As can be seen from the description of above method, split push rod of the present invention makes installation more easy.Engineering and technological research institute of CITIC Dicastal Co., Ltd. employs the mould possessing split type push rod in internal R&D shop test.Test shows, in the process on probation of 2 months, average push rod assembly manipulation time decreased 65%, industrial accident is stopped substantially.
Claims (10)
1. a Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod, described Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod is made up of push rod cap (301), push rod butt end (302), nut (304) and push rod taper end (306), it is characterized in that, described push rod cap (301) is connected with push rod butt end (302) head and the tail; Be connected by nut (304) between push rod butt end (302) with push rod taper end (306).
2. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, the diameter of described push rod butt end (302) is 18-22mm.
3. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, the diameter of described push rod butt end (302) is 20mm.
4. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, the diameter of described push rod taper end (306) is 10-14mm.
5. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, the diameter of described push rod taper end (306) is 12mm.
6. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, described one end that push rod butt end (302) is being connected to nut (304) comprises screw thread.
7. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, described screw thread is the screw thread of 20 × 17mm.
8. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, described push rod taper end (306) comprises half-cone boss (305) in the one end being connected to nut (304).
9. Low Pressure Die Casting Die of Aluminum Wheel Castings split push rod according to claim 1, is characterized in that, the diameter of described half-cone boss (305) is 18mm, and height is 8.3mm.
10. a Low Pressure Die Casting Die of Aluminum Wheel Castings, is characterized in that, the push rod of described Low Pressure Die Casting Die of Aluminum Wheel Castings is the split push rod described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052699.5A CN105478721A (en) | 2016-01-27 | 2016-01-27 | Split ejection rod of mold for low-pressure casting of aluminum alloy hubs as well as mold comprising split ejection rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052699.5A CN105478721A (en) | 2016-01-27 | 2016-01-27 | Split ejection rod of mold for low-pressure casting of aluminum alloy hubs as well as mold comprising split ejection rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105478721A true CN105478721A (en) | 2016-04-13 |
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ID=55666190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610052699.5A Pending CN105478721A (en) | 2016-01-27 | 2016-01-27 | Split ejection rod of mold for low-pressure casting of aluminum alloy hubs as well as mold comprising split ejection rod |
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| Country | Link |
|---|---|
| CN (1) | CN105478721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190321878A1 (en) * | 2018-03-23 | 2019-10-24 | Citic Dicastal Co., Ltd | Mold for reducing defects in low pressure casting of aluminum alloy wheel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030074863A (en) * | 2002-03-14 | 2003-09-22 | 정기덕 | Metal filter for low pressure casting apparatus |
| CN203567118U (en) * | 2013-09-26 | 2014-04-30 | 浙江工商职业技术学院 | Segmental push rod |
| CN204075150U (en) * | 2014-06-26 | 2015-01-07 | 无锡戴卡轮毂制造有限公司 | A kind of low pressure casting die segmented push rod |
| CN204234705U (en) * | 2014-11-26 | 2015-04-01 | 中信戴卡宁波轮毂制造有限公司 | The low pressure wheel cast mold center push rod improved |
| CN105081291A (en) * | 2015-08-28 | 2015-11-25 | 昆山广标精密机械有限公司 | Sectional type ejector rod of aluminum alloy hub casting mold |
-
2016
- 2016-01-27 CN CN201610052699.5A patent/CN105478721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030074863A (en) * | 2002-03-14 | 2003-09-22 | 정기덕 | Metal filter for low pressure casting apparatus |
| CN203567118U (en) * | 2013-09-26 | 2014-04-30 | 浙江工商职业技术学院 | Segmental push rod |
| CN204075150U (en) * | 2014-06-26 | 2015-01-07 | 无锡戴卡轮毂制造有限公司 | A kind of low pressure casting die segmented push rod |
| CN204234705U (en) * | 2014-11-26 | 2015-04-01 | 中信戴卡宁波轮毂制造有限公司 | The low pressure wheel cast mold center push rod improved |
| CN105081291A (en) * | 2015-08-28 | 2015-11-25 | 昆山广标精密机械有限公司 | Sectional type ejector rod of aluminum alloy hub casting mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190321878A1 (en) * | 2018-03-23 | 2019-10-24 | Citic Dicastal Co., Ltd | Mold for reducing defects in low pressure casting of aluminum alloy wheel |
| US10654099B2 (en) * | 2018-03-23 | 2020-05-19 | Citic Dicastal Co., Ltd. | Mold for reducing defects in low pressure casting of aluminum alloy wheel |
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Application publication date: 20160413 |
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