CN103962515B - Heavy camshaft housing moulds pressure manufacturing system and manufacture method - Google Patents
Heavy camshaft housing moulds pressure manufacturing system and manufacture method Download PDFInfo
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- CN103962515B CN103962515B CN201410214893.XA CN201410214893A CN103962515B CN 103962515 B CN103962515 B CN 103962515B CN 201410214893 A CN201410214893 A CN 201410214893A CN 103962515 B CN103962515 B CN 103962515B
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- cover plate
- mould case
- manufacturing system
- camshaft
- mould
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000004576 sand Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000004382 potting Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Abstract
The present invention discloses a kind of heavy camshaft housing moulds pressure manufacturing system, comprise the mould case of upper end open, cover plate and cover plate drive unit, one end of cover plate is connected with the Power output end of cover plate drive unit, being equipped with heating unit in cover plate and in the diapire of mould case, cover plate is positioned at the top of mould case and can move up and down at mould case. The invention also discloses the manufacture method of a kind of heavy camshaft housing moulds pressure manufacturing system, comprise the following steps: camshaft mould core is installed, preheating; Potting resin sand, lid cover plate; Heat-agglomerating, stir-in resin is pressurizeed by cover plate, it is achieved extrusion forming; Take out after resin cooling forming and obtain camshaft. The present invention is by increasing cover plate and arranges heating unit in cover plate and in the diapire of mould case, achieve and heat in the both sides up and down of resin sand simultaneously, can effectively increase shell mould sintered layer thickness, by cover plate, resin sand pressurization is realized pressure sintering, finished product housing density can be strengthened, it is to increase investment shell intensity.
Description
Technical field
The present invention relates to a kind of camshaft housing moulds manufacturing system, particularly relate to a kind of heavy camshaft housing moulds pressure manufacturing system and manufacture method.
Background technology
Camshaft is the major parts of engine air distribution system, the angle position of its cam on axle directly affects the timing accuracy that valve opens and closes, casting is often adopted shell moulded casting (namely producing the castmethod of foundry goods with shell casting mold), its technique is be placed in mould case by the upper and lower core of camshaft, push away preheating in burner hearth, certain temperature to be preheating to, pull out from baker, resin sand is poured in case mould, then push away into temperature be 600 DEG C baking oven baking, resin sand in stove nature sinter molding.
Above-mentioned shell moulded casting is adopted to have the advantage that technique is simple, foundry goods precision is high, it is possible to fully to ensure foundry goods precision. Its weight of small size camshaft is light, and housing intensity can meet casting requirement completely. But when producing heavy camshaft, owing to product own wt increases, the deal of resin sand increases, so usually there is the phenomenon of housing intensity difference and rotten shell, simultaneously when casting cooling due to product effect of weight, product easily sinks along direction, ground and bending phenomenon occurs; In addition, only lean on the Heated Flow of resin sand to complete when camshaft housing sinters naturally, thus there will be the problem that housing is loose, intensity is low.
Summary of the invention
The object of the present invention is just to provide heavy camshaft housing moulds pressure manufacturing system and the manufacture method of a kind of two-sided heating in order to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of heavy camshaft housing moulds pressure manufacturing system, comprise the mould case of upper end open, add and man-hour camshaft mould core is installed in described mould case, described manufacturing system also comprises cover plate and cover plate drive unit, one end of described cover plate is connected with the Power output end of described cover plate drive unit, being equipped with heating unit in described cover plate and in the diapire of described mould case, described cover plate is positioned at the top of described mould case and can move up and down at described mould case.
In said structure, heating unit is set in the diapire of mould case He in cover plate, after making mould case and cover plate closing, namely forms a baking oven, it is not necessary to adopt other baking oven to sinter again, simultaneously, it is possible to realize heating in the both sides up and down of resin sand simultaneously; Increasing cover plate and drive by cover plate drive unit, in resin sand post liquefaction flow process, resin sand can be formed certain pressure by cover plate so that it is complete sintering under stress. The function that these oven sintered being all traditional do not possess.
Specifically, described cover plate drive unit is hydraulic ram, and the piston rod of described hydraulic ram is connected by one end of transmission mechanism with described cover plate.
Described transmission mechanism is link transmission rod.
Described heating unit is electric heating pipe.
A manufacture method for heavy camshaft housing moulds pressure manufacturing system, comprises the following steps:
(1) camshaft mould core is arranged in mould case, opens heating unit and carry out preheating;
(2) close heating unit after preheating, potting resin sand in mould case, then start cover plate drive unit and be placed on cover plate on mould case to make it coincide close;
(3) opening heating unit again, start heat-agglomerating, in sintering process, after resin sand liquidization and flow, cover plate is under its own weight to resin pressurization, or, drive cover plate to be pressurizeed by resin by cover plate drive unit, until resin cooling forming, it is achieved extrusion forming;
(4) take out after resin cooling forming and obtain camshaft.
The useful effect of the present invention is:
The present invention is by increasing cover plate and arranges heating unit in cover plate and in the diapire of mould case, achieve and heat in the both sides up and down of resin sand simultaneously, can effectively increase shell mould sintered layer thickness, by cover plate, resin sand pressurization is realized pressure sintering, finished product housing density can be strengthened, improve investment shell intensity, solve that the housing that occurs when camshaft adopts traditional method to manufacture is loose, rotten shell and the excessively curved problem of housing.
Accompanying drawing explanation
Fig. 1 is that structural representation cuts open in office during heavy camshaft housing moulds pressure manufacturing system application of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, heavy camshaft housing moulds pressure manufacturing system of the present invention comprises the mould case 7 of upper end open, cover plate 6 and hydraulic ram 12, one end of cover plate 6 is connected with the piston rod 11 of hydraulic ram 12 by link transmission rod 9, it is equipped with electric heating pipe 1 in cover plate 6 and in the diapire of mould case 7, cover plate 6 is positioned at the top of mould case 7 and can move up and down at mould case 7, concrete moving structure is conventional structure, such as: cover plate 6 is just arranged on the upper end of mould case 7, periphery seals but also can move up and down, or, the upper end of mould case 7 arranges guide pillar, cover plate 6 is placed on guide pillar can move up and down, specifically determine according to demand. Fig. 1 also show the undersetting 4 for supporting, cylinder 5 is ejected for what eject camshaft, it is positioned at the push rod support plate 8 ejected above cylinder 5, it is positioned at the push rod 2 above push rod support plate 8, the support plate guide pillar 10 being connected with push rod support plate 8, for installing the cylinder support 13 of hydraulic ram, these parts and structure are conventional components and structure.
As shown in Figure 1, adopt the method for this heavy type camshaft housing moulds pressure manufacturing system manufacture camshaft as follows:
(1) camshaft mould core 3 is arranged in mould case 7, opens electric heating pipe 1 and carry out preheating;
(2) close electric heating pipe 1 after preheating, potting resin sand in mould case 7, then start hydraulic ram 12 and be placed on mould case 7 by cover plate 6 to make it coincide close;
(3) opening electric heating pipe 1 again, start heat-agglomerating, in sintering process, after resin sand liquidization and flow, cover plate 6 is under its own weight to resin pressurization, or, drive cover plate 6 to resin pressurization by hydraulic ram 12, until resin cooling forming, it is achieved extrusion forming;
(4) take out after resin cooling forming and obtain camshaft.
Above-described embodiment is the better embodiment of the present invention; it it is not the restriction to technical solution of the present invention; as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (4)
1. the manufacture method of a heavy camshaft housing moulds pressure manufacturing system, described heavy camshaft housing moulds pressure manufacturing system comprises the mould case of upper end open, add and man-hour camshaft mould core is installed in described mould case, described heavy camshaft housing moulds pressure manufacturing system also comprises cover plate and cover plate drive unit, one end of described cover plate is connected with the Power output end of described cover plate drive unit, being equipped with heating unit in described cover plate and in the diapire of described mould case, described cover plate is positioned at the top of described mould case and can move up and down at described mould case; It is characterized in that: described manufacture method comprises the following steps:
(1) camshaft mould core is arranged in mould case, opens heating unit and carry out preheating;
(2) close heating unit after preheating, potting resin sand in mould case, then start cover plate drive unit and be placed on cover plate on mould case to make it coincide close;
(3) opening heating unit again, start heat-agglomerating, in sintering process, after resin sand liquidization and flow, cover plate is under its own weight to resin pressurization, or, drive cover plate to be pressurizeed by resin by cover plate drive unit, until resin cooling forming, it is achieved extrusion forming;
(4) take out after resin cooling forming and obtain camshaft.
2. the manufacture method of heavy camshaft housing moulds pressure manufacturing system according to claim 1, it is characterised in that: described cover plate drive unit is hydraulic ram, and the piston rod of described hydraulic ram is connected by one end of transmission mechanism with described cover plate.
3. the manufacture method of heavy camshaft housing moulds pressure manufacturing system according to claim 2, it is characterised in that: described transmission mechanism is link transmission rod.
4. the manufacture method of heavy camshaft housing moulds pressure manufacturing system according to claim 1,2 or 3, it is characterised in that: described heating unit is electric heating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410214893.XA CN103962515B (en) | 2014-05-21 | 2014-05-21 | Heavy camshaft housing moulds pressure manufacturing system and manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410214893.XA CN103962515B (en) | 2014-05-21 | 2014-05-21 | Heavy camshaft housing moulds pressure manufacturing system and manufacture method |
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| Publication Number | Publication Date |
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| CN103962515A CN103962515A (en) | 2014-08-06 |
| CN103962515B true CN103962515B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410214893.XA Active CN103962515B (en) | 2014-05-21 | 2014-05-21 | Heavy camshaft housing moulds pressure manufacturing system and manufacture method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110125374A (en) * | 2019-04-24 | 2019-08-16 | 宁国市开源电力耐磨材料有限公司 | One kind being used for abrasion-resistant cast part cast case opener |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201913195U (en) * | 2010-12-09 | 2011-08-03 | 四川海科机械制造有限公司 | Simple shell forming machine |
| CN201988678U (en) * | 2011-04-15 | 2011-09-28 | 成都市西菱汽车配件有限责任公司 | Camshaft type shell for quick closing |
| CN202097370U (en) * | 2011-06-01 | 2012-01-04 | 安徽金光机械集团股份有限公司 | Special complete tool for precision casting of camshaft housing moulds |
| CN103521702A (en) * | 2013-10-28 | 2014-01-22 | 绥阳县海红铸造有限责任公司 | Large-scale box part precoated sand shell-type casting technology method |
| CN103658553A (en) * | 2013-05-20 | 2014-03-26 | 郧县力达商用车配套有限公司 | Automotive intercooler air chamber shell core machine and processing method thereof |
| CN203804158U (en) * | 2014-05-21 | 2014-09-03 | 成都西菱动力科技股份有限公司 | Heavy-camshaft housing pressure-manufacturing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4531803B2 (en) * | 2007-12-11 | 2010-08-25 | 本田技研工業株式会社 | Mold molding machine and mold casting method |
-
2014
- 2014-05-21 CN CN201410214893.XA patent/CN103962515B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201913195U (en) * | 2010-12-09 | 2011-08-03 | 四川海科机械制造有限公司 | Simple shell forming machine |
| CN201988678U (en) * | 2011-04-15 | 2011-09-28 | 成都市西菱汽车配件有限责任公司 | Camshaft type shell for quick closing |
| CN202097370U (en) * | 2011-06-01 | 2012-01-04 | 安徽金光机械集团股份有限公司 | Special complete tool for precision casting of camshaft housing moulds |
| CN103658553A (en) * | 2013-05-20 | 2014-03-26 | 郧县力达商用车配套有限公司 | Automotive intercooler air chamber shell core machine and processing method thereof |
| CN103521702A (en) * | 2013-10-28 | 2014-01-22 | 绥阳县海红铸造有限责任公司 | Large-scale box part precoated sand shell-type casting technology method |
| CN203804158U (en) * | 2014-05-21 | 2014-09-03 | 成都西菱动力科技股份有限公司 | Heavy-camshaft housing pressure-manufacturing system |
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| CN103962515A (en) | 2014-08-06 |
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