CN201320600Y - Cast mould for sloping cam plate of auto air conditioning compressor - Google Patents

Cast mould for sloping cam plate of auto air conditioning compressor Download PDF

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Publication number
CN201320600Y
CN201320600Y CNU2008200672723U CN200820067272U CN201320600Y CN 201320600 Y CN201320600 Y CN 201320600Y CN U2008200672723 U CNU2008200672723 U CN U2008200672723U CN 200820067272 U CN200820067272 U CN 200820067272U CN 201320600 Y CN201320600 Y CN 201320600Y
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China
Prior art keywords
die cavity
swash plate
drift
chamber
template
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Expired - Fee Related
Application number
CNU2008200672723U
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Chinese (zh)
Inventor
万里
罗吉荣
吴树森
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Priority to CNU2008200672723U priority Critical patent/CN201320600Y/en
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Abstract

The utility model provides a cast mould for the sloping cam plate of an auto air conditioning compressor, wherein, a moving mould plate 5 is affixed to the upper surface of a fixed mould plate 4, a material chamber 2 is arranged inside the fixed mould plate 4, an extrusion punch 1 is positioned inside the material chamber 2, a pouring channel 7 and a cavity 9 are formed on the contact surface between the fixed mould plate 4 and the moving mould plate 5, one end of the pouring channel 7 is communicated with the material chamber 2, the other end of the pouring channel 7 is communicated with the side wall of the cavity 9, two passages are arranged at the top part and the bottom part of the cavity 9 respectively, two punches are arranged inside the two passages respectively, and a pressurizing oil cylinder is connected with one end of each punch far away from the cavity 9. The aluminum alloy sloping cam plate provided by the utility model has the advantages of compact structure, low content of internal impurities, good appearance formation and fine texture, and has no bubbles after heat treatment.

Description

A kind of casting mould of car air conditioning compressor slanting plate
Technical field
The utility model relates to casting technology field, especially relates to the casting mould of car air conditioning compressor slanting plate.
Technical background
Hyundai Motor all disposes air conditioning for automobiles, " compact conformation, in light weight, efficient is high, low in energy consumption, good reliability, good refrigeration effect " be the target of air conditioning for automobiles development always.Compressor of air conditioner plays a part very key for the performance quality of air-conditioning, and at present, extensive use is inclined disc type compressor of air conditioner on air conditioning for automobiles.Because the rotating speed height (4000~5000rpm under the normal condition is up to 7000rpm) of compressor of air conditioner in using, therefore for inclined disc type compressor of air conditioner key components and parts---swash plate has higher requirement.The swash plate of superior performance is not only in light weight, and high intensity and wearability are arranged, and runs up for a long time and abominable condition of work to adapt to, and improves the reliability of air-conditioning and increases the service life.
The material of swash plate mainly contains cast iron and aluminium alloy.Cast iron swash plate spare is acted counter to present car lightweight development trend, and the cast iron swash plate exists the compressor effect low, the shortcoming that energy consumption is big.Therefore, the cast iron swash plate withdraws from sedan air conditioner market gradually, and the aluminium alloy swash plate then becomes the first-selection and the main source of current inclined disc type compressor of air conditioner.
Market survey finds that aluminum current alloy swash plate adopts hot forging to be shaped, and material is mainly the A390 alloy.The A390 alloy is hypereutectic Al-Si-Cu alloy.Be published in the first-phase document of " Sumitomo light metal technical report " 1997 the 38th volume " automobile with the developments of aluminium alloy " the 53-71 page or leaf (from Move Trucks with ア Le ミ ニ ウ system alloy Move to, Sumitomo light metal skill Reported, 38 (1997), 1:53-71) 10 cylinder bi-directional swash plate type fixed displacement compressors have been introduced, the swash plate of its compressor adopts hypereutectic A390 alloy, and hot forging is shaped after T6 heat treatment improves the intensity and the hardness of swash plate.Adopt the hot forging manufacturing process to produce swash plate and mainly have following shortcoming: 1) need A390 continuous casting material with customization, and through quantitatively cutting, to guarantee that each part forges back swash plate weight and size can not be overproof.2) material base must be heated in 350~500 ℃ of scopes and can form, and power consumption is big, and cost increases.3) plastic deformation of silumin is little, and forging was easy to generate crack defect when hot forging was shaped, and causes yield rate to reduce.The forging force that needs when 4) warm and hot forging is shaped is big, the investment height of equipment needed thereby, and die life is short.
Chinese patent literature " a kind of manufacture method of aluminium swash plate of automobile air conditioner compressor " (application number 200710026654.1, publication number CN101011732A), adopted extrusion casint or claimed the method for liquid forging to make the aluminium alloy swash plate spare of automobile air conditioner compressor, its alloying component approaches A390.Mainly there are the following problems for aluminium alloy swash plate manufacture method described in this patent application document: 1) when extrusion casint or liquid forging swash plate, aluminium alloy material in the barrel, comprise that barrel solidifies the duricrust of formation, coating, oxide skin etc. and all enters the foundry goods die cavity, the inner inclusion defect that forms easily of the back foundry goods that is shaped, the finished part rate after the machined is low.2) fill type and flow not freely, form cold shut easily, and the foundry goods bottom is bubbled the percent defective height easily after the heat treatment.Bubble if need to eliminate heat treatment, must adopt the method that vacuumizes, additionally increased operational sequence, and the fluctuation of foundry goods total quality is big, instability.When 3) extruding is produced, can only accomplish one of a mould, production efficiency is low.
The utility model content
The purpose of this utility model is to provide the casting mould of a kind of automobile air conditioner compressor with swash plate, and it is few to produce inner clamps foreign material content, the fine aluminum alloy swash plate of compact structure.
A kind of automobile air conditioner compressor casting mould of swash plate, dynamic model template 5 is fitted in the upper surface of cover half template 4, is provided with material chamber 2 in the cover half template 4, and extruding drift 1 is positioned at material chamber 2; Cover half template 4 is provided with running channel 7 and die cavity 9 with the contact-making surface place of dynamic model template 5, one end of running channel 7 is communicated with material chamber 2, the other end of running channel 7 is communicated with the sidewall of die cavity 9, the top of die cavity 9 and bottom respectively are provided with a passage, be equipped with drift in two passages, two drifts connect a pressurization oil cylinder separately away from an end of die cavity 9.
The utlity model has following technique effect: (1) is squeezed on the extruding drift in the material chamber, clean liquation steadily flows into die cavity by running channel, and impurity such as duricrust, coating, oxide skin can remain in the material indoor, thereby make foundry goods inner clamps foreign material content reduce surface quality and appearance and size precision height; (2) by applying feeding pressure, guarantee the foundry goods densification to die cavity top and bottom.(3) flow into liquation flowing velocity and die cavity exhaust in the die cavity by control from running channel, guarantee to flow steadily, do not roll up gas, heat treating castings is non-foaming.
Description of drawings
Fig. 1 is an aluminium alloy swash plate casting mould structural representation of the present utility model;
Fig. 2 is mould embodiment schematic diagram of making the aluminium alloy swash plate of the utility model one mould;
Fig. 3 is two mould embodiment schematic diagrames of making the aluminium alloy swash plate of the utility model one mould.
The specific embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 implements a kind of mould structure principle schematic that above-mentioned casting method adopts for the utility model, is followed successively by fixed clamping plate 3, cover half template 4, dynamic model template 5 and moving clamping plate 6 from the bottom up.Be provided with material chamber 2 in the cover half template 4, other has the top of extruding drift 1 to be in the material chamber 2, and extruding drift 1 can move up and down in material chamber 2.Cover half template 4 is provided with and the running channel 7 of expecting that chamber 2 is communicated with the contact-making surface place of dynamic model template 5.Cover half template 4 also is provided with the die cavity 9 that the side is communicated with running channel 7 other ends with the contact-making surface place of dynamic model template 5.Bottom at die cavity 9 is provided with first passage, and other has feeding pressurization drift 10 to move up and down in this passage, is used for providing feeding pressure from the bottom of die cavity 9 to the liquation center.Top at die cavity 9 is provided with second channel, and other has pressurize drift 8 to move up and down in this passage, provides dwell pressure from the top of die cavity 9 to liquation.
Before the extrusion molding, mould is in open mode.At first that temperature is suitable high-quality aluminum alloy melt pours into material chamber 2 fast and reposefully, matched moulds fast under the extruder (not shown) drives then, and the purpose of matched moulds is to reduce the temperature of aluminum alloy melt in material chamber 2 and descends fast.Extruding drift 1 is driven by the extrusion oil cylinder (not shown) and rises behind the matched moulds, and aluminum alloy melt then flows into die cavity 9 reposefully by running channel 7.Running channel 7 is the ingate of die cavity 9 with die cavity 9 junctions.
After aluminum alloy melt is full of die cavity 9, drive pressurize drift 8 at once and move down, put on one and act on the foundry goods that is solidifying greater than 50MPa pressure, solidify fully until foundry goods.Behind pressurize drift 8 pressurization 6~8s, drive on the feeding pressurization drift 10 and move, feeding pressurization drift 10 is pushed down in the foundry goods boss and behind the 4~10s that keep-ups pressure in the pressure effect greater than 50MPa, and the feeding drift 10 that pressurizes is drawn back.After treating that running channel and die cavity junction liquation solidify, the pressure of cancellation squeeze pressure extruding drift 1.Foundry goods moves withdrawal on the pressurize drift 8 after continuing cooling 10~20s.Open mould then, extruding drift 1 and feeding pressurization drift 10 move simultaneously, can eject foundry goods.
The mould of the utility model design is not limited to a kind of form, can change the position of pressurize drift 8 and feeding pressurization drift 10, pressurize drift 8 promptly is set in first passage, and feeding pressurization drift 10 is set in second channel.Liquation is full of die cavity 9 backs and applies dwell pressure from die cavity 9 bottoms to liquation earlier, apply feeding pressure from die cavity 9 tops to the liquation center again, cancel die cavity 9 top feeding pressure then, treat that running channel 7 and die cavity 9 junction liquations solidify the pressure at cancellation extruding drift 1 place, back.Wait the liquation in the die cavity 9 to solidify the dwell pressure that die cavity 9 is cancelled in the back fully always.Last die sinking is squeezed on the extruding drift, exerts pressure to the die cavity bottom simultaneously, obtains swash plate.
Fig. 2 realizes the mould example structure figure of one of a mould for the utility model, in order to form running channel and die cavity, can between cover half template 4 and dynamic model template 5, set up moving die insert 14, fixed die insert 17 and divide flow cone 11, divide flow cone 11 to be positioned at material 2 tops, chamber, divide and form running channel 7 and die cavity 9 between flow cone 11, moving die insert 14 and the fixed die insert 17, running channel 7 one ends are connected with material chamber 2, and the other end is connected with die cavity 9 sides.For better despumation and gas, around die cavity 9, be provided with the overflow launder or the slag trap 16 that are communicated with die cavity 9 and reach the air discharge duct 15 that is connected with overflow launder or slag trap.Material chamber 2 is fixed in the cover half template 4 by cover half backing plate 18.In order to apply upward pressure to the die cavity bottom, between cover half backing plate 18 and fixed clamping plate 3, be provided with cover half cushion block 20 and feeding pressurization oil cylinder 19, thereby driving to move on the feeding pressurization drift 10, feeding pressurization oil cylinder 19 exerts pressure; In order to apply downward pressure to the die cavity top, between dynamic model template 5 and moving clamping plate 6, be provided with dynamic model cushion block 12 and pressurize oil cylinder 13, thereby moving down, pressurize oil cylinder 13 driving pressurize drifts 8 exert pressure.Cover half/dynamic model cushion block is used to feeding pressurization oil cylinder 19/ pressurize oil cylinder 13 that suitable setting height(from bottom) is provided.
In order to raise the efficiency, can in said apparatus, to increase by one or three running channels 7, die cavity 9, feeding pressurization drift 10 and pressurize drifts 8 in the same manner, thereby realize four of two of moulds or moulds.Fig. 3 is provided with on the basis of Fig. 2 and running channel 7, die cavity 9, overflow launder (slag trap) 16 and the air discharge duct 15 of expecting that chamber 2 is communicated with symmetrically, thereby realizes two of moulds, has improved efficient.
Nuance or the title difference formed because of mould structure can not change essence of the present utility model, and all do not have some changes of Promethean relevant mould structure all to belong to protection domain of the present utility model in force.
Embodiment 1
The aluminium alloy swash plate that production code number of one mould is CHD111-0202M, the different swash plate code names of producer are also different, and this patent does not limit.The Φ 71.3mm of swash plate diameter projected, 17.5 ° of swashplate angles, cylindrical vertical thickness 12mm, boss height 18.9mm.Swash plate material A390.At first prepare required various raw material such as fine aluminium ingot, silicon metal, cathode copper, pure magnesium etc., in crucible electrical resistance furnace, melt according to the A390 alloying component.After treating that material all melts clearly, control to predetermined temperature, add an amount of alterant, and concise 15min, it is static to skim then, and 790~810 ℃ of temperature controls are to be poured.Mould and die preheating to 150~200 ℃, mold temperature is controlled at 250~300 ℃ during operate as normal, water based paint.Cast back matched moulds moves on the extruding drift, and liquation is clamp-oned die cavity with the flow velocity of 750mm/s; Then the pressurize drift moves down, and the pressure that puts on 80MPa after keeping this pressure 6s, applies the pressure of a 120MPa in the die cavity top from the die cavity bottom, and the feeding drift that pressurizes is pressed in the liquation and keeps 8s; Draw back feeding pressurization drift then; Solidify recession fully at running channel and remove squeeze pressure; Liquation in die cavity solidifies recession fully and removes dwell pressure, die sinking pickup behind the continuation cooling 20s.25/hour of the productivity ratio of present embodiment.Foundry goods is through T6 heat treatment, machined.Foundry goods dense structure after the heat treatment, primary silicon is tiny, is evenly distributed, and Eutectic Silicon in Al-Si Cast Alloys goes bad into point-like or shaft-like.Foundry goods body tensile strength is tested greater than 330MPa, hardness HBS142.Heat treating castings is non-foaming, inclusion content is few, finished product comprehensive qualified rate 〉=90%.
Embodiment 2
Two production code numbers of one mould are the aluminium alloy swash plate of swash plate code name CHD115-0202M, and the different swash plate code names of producer are also different, and this patent does not limit.The Φ 79.4mm of swash plate diameter projected, 22 ° of swashplate angles, cylindrical vertical thickness 14.5mm, boss height 22.4mm.Swash plate material A390.Handle aluminum alloy melt according to the fusion process that embodiment 1 describes, cast back matched moulds moves on the extruding drift, and liquation is clamp-oned die cavity with 800mm/s; Then the pressurize drift moves down, and the pressure that puts on 80MPa after keeping this pressure 8s, applies the pressure of a 120MPa in the die cavity top from the die cavity bottom, and the feeding drift that pressurizes is pressed in the liquation and keeps 8s; Draw back feeding pressurization drift then; Solidify recession fully at running channel and remove squeeze pressure; Liquation in die cavity solidifies recession fully and removes dwell pressure.Die sinking pickup behind the continuation cooling 20s.50/hour of the productivity ratio of present embodiment.Foundry goods is through T6 heat treatment, machined.Foundry goods dense structure after the heat treatment, primary silicon is tiny, is evenly distributed, and Eutectic Silicon in Al-Si Cast Alloys goes bad into point-like or shaft-like.Foundry goods body tensile strength is greater than 310MPa, hardness HBS140.Heat treating castings is non-foaming, inclusion content is few, finished product comprehensive qualified rate 〉=90%.
Embodiment 3
Two production code numbers of 1 one moulds are the aluminium alloy swash plate of swash plate code name CHD121-0202M, and the different swash plate code names of producer are also different, and this patent does not limit.The Φ 79.4mm of swash plate diameter projected, 17 ° of cylindrical vertical thickness of swashplate angle 14.0mm, boss height 27.1mm.Swash plate material A390.Handle aluminum alloy melt according to the fusion process that embodiment 1 describes, cast back matched moulds moves on the extruding drift, and liquation is clamp-oned die cavity with the flow velocity of 680mm/s; Then the pressurize drift moves down, and the pressure that puts on 80MPa after keeping this pressure 7s, applies the pressure of a 120MPa in the die cavity top from the die cavity bottom, is pressed into local feeding drift in the liquation and keeps 10s; Draw back feeding pressurization drift then; Solidify recession fully at running channel and remove squeeze pressure; Liquation in die cavity solidifies recession fully and removes dwell pressure.Die sinking pickup behind the continuation cooling 20s.Present embodiment, 50/hour of productivity ratio.Foundry goods is through T6 heat treatment, machined.Foundry goods dense structure, primary silicon is tiny, is evenly distributed, and Eutectic Silicon in Al-Si Cast Alloys goes bad into point-like or shaft-like.Foundry goods body tensile strength is greater than 300MPa, hardness HBS140.Foundry goods more than heat treatment foaming, the inclusion content is few, finished product comprehensive qualified rate 〉=90%.
Comparative Examples 1
The swash plate spare T6 heat-treated sturcture that the hot forging of selling on the market is shaped, its primary silicon is tiny, is evenly distributed, and Eutectic Silicon in Al-Si Cast Alloys goes bad into point-like or shaft-like.Foundry goods body tensile strength is greater than 320MPa after the T6 heat treatment, hardness HBS140, and the product comprehensive qualified rate is not quite clear.
Comparative Examples 2
According to the described method production code number of patent application document " a kind of manufacture method of aluminium swash plate of automobile air conditioner compressor " (application number 200710026654.1, publication number CN101011732A) is comprehensive qualified rate 〉=90%.
Embodiment 2
Two production code numbers of one mould are the aluminium alloy swash plate of swash plate code name CHD115-0202M, and the different swash plate code names of producer are also different, and this patent does not limit.The Φ 79.4mm of swash plate diameter projected, 22 ° of swashplate angles, cylindrical vertical thickness 14.5mm, boss height 22.4mm.Swash plate material A390.Handle aluminum alloy melt according to the fusion process that embodiment 1 describes, cast back matched moulds moves on the extruding drift, and liquation is clamp-oned die cavity with 800mm/s; Then the pressurize drift moves down, and the pressure that puts on 80MPa after keeping this pressure 8s, applies the pressure of a 120MPa in the die cavity top from the die cavity bottom, and the feeding drift that pressurizes is pressed in the liquation and keeps 8s; Draw back feeding pressurization drift then; Solidify recession fully at running channel and remove squeeze pressure; Liquation in die cavity solidifies recession fully and removes dwell pressure.Die sinking pickup behind the continuation cooling 20s.50/hour of the productivity ratio of present embodiment.Foundry goods is through T6 heat treatment, machined.Foundry goods dense structure after the heat treatment, primary silicon is tiny, is evenly distributed, and Eutectic Silicon in Al-Si Cast Alloys goes bad into point-like or shaft-like.Foundry goods body tensile strength is greater than 310MPa, hardness HBS140.Heat treating castings is non-foaming, inclusion content is few, finished product comprehensive qualified rate 〉=90%.
Embodiment 3
Two production code numbers of 1 one moulds are the aluminium alloy swash plate of swash plate code name CHD121-0202M, and the different swash plate code names of producer are also different, and this patent does not limit.The Φ 79.4mm of swash plate diameter projected, 17 ° of cylindrical vertical thickness of swashplate angle 14.0mm, boss height 27.1mm.Swash plate material A390.Handle aluminum alloy melt according to the fusion process that embodiment 1 describes, cast back matched moulds moves on the extruding drift, and liquation is clamp-oned die cavity with the flow velocity of 680mm/s; Then the pressurize drift moves down, and the pressure that puts on 80MPa after keeping this pressure 7s, applies the pressure of a 120MPa in the die cavity top from the die cavity bottom, is pressed into local feeding drift in the liquation and keeps 10s; Draw back feeding pressurization drift then; Solidify recession fully at running channel and remove squeeze pressure; Liquation in die cavity solidifies recession fully and removes dwell pressure.Die sinking pickup behind the continuation cooling 20s.Present embodiment, 50/hour of productivity ratio.Foundry goods is through T6 heat treatment, machined.Foundry goods dense structure, primary silicon is tiny, is evenly distributed, and Eutectic Silicon in Al-Si Cast Alloys goes bad into point-like or shaft-like.Foundry goods body tensile strength is greater than 300MPa, hardness HBS140.Foundry goods more than heat treatment foaming, the inclusion content is few, finished product comprehensive qualified rate 〉=90%.

Claims (2)

1, a kind of casting mould of car air conditioning compressor slanting plate, dynamic model template (5) is fitted in the upper surface of cover half template (4), is provided with material chamber (2) in the cover half template (4), and extruding drift (1) is positioned at material chamber (2); It is characterized in that, cover half template (4) is provided with running channel (7) and die cavity (9) with the contact-making surface place of dynamic model template (5), one end of running channel (7) is communicated with material chamber (2), the other end of running channel (7) is communicated with the sidewall of die cavity (9), the top and the bottom of die cavity (9) respectively are provided with a passage, be equipped with drift in two passages, two drifts connect a pressurization oil cylinder separately away from an end of die cavity (9).
2, a kind of mould according to claim 1 is characterized in that, described die cavity (9) is connected with air discharge duct (15) by overflow launder or slag trap (16).
CNU2008200672723U 2008-05-14 2008-05-14 Cast mould for sloping cam plate of auto air conditioning compressor Expired - Fee Related CN201320600Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200672723U CN201320600Y (en) 2008-05-14 2008-05-14 Cast mould for sloping cam plate of auto air conditioning compressor

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Application Number Priority Date Filing Date Title
CNU2008200672723U CN201320600Y (en) 2008-05-14 2008-05-14 Cast mould for sloping cam plate of auto air conditioning compressor

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101704088B (en) * 2009-11-10 2011-10-05 姚国志 Alloy liquid extrusion casting forming device and process method thereof
CN103517776A (en) * 2011-03-11 2014-01-15 新东工业株式会社 Die-casting die
CN106334784A (en) * 2016-09-07 2017-01-18 滁州市鑫鼎机械模具制造有限公司 Casting mold used for manufacturing refrigerator compressor casting machine frame
CN106180642B (en) * 2016-07-22 2018-03-09 太原理工大学 One kind has shear extrusion function die casting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101704088B (en) * 2009-11-10 2011-10-05 姚国志 Alloy liquid extrusion casting forming device and process method thereof
CN103517776A (en) * 2011-03-11 2014-01-15 新东工业株式会社 Die-casting die
CN106180642B (en) * 2016-07-22 2018-03-09 太原理工大学 One kind has shear extrusion function die casting
CN106334784A (en) * 2016-09-07 2017-01-18 滁州市鑫鼎机械模具制造有限公司 Casting mold used for manufacturing refrigerator compressor casting machine frame

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