CN203409232U - Device for preventing low-pressure casting product from deforming in casting - Google Patents
Device for preventing low-pressure casting product from deforming in casting Download PDFInfo
- Publication number
- CN203409232U CN203409232U CN201320435844.XU CN201320435844U CN203409232U CN 203409232 U CN203409232 U CN 203409232U CN 201320435844 U CN201320435844 U CN 201320435844U CN 203409232 U CN203409232 U CN 203409232U
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- China
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- blank
- receiver
- stock pan
- support seat
- supporting seat
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Abstract
The utility model discloses a device for preventing a low-pressure casting product from deforming in casting. The device comprises a hydraulic cylinder, a fixed support seat, a support rod, a stock pan support seat, buffer springs, and a stock pan, wherein the hydraulic cylinder is connected with the support rod; the fixed support seat is assembled on a frame bracket of a low-pressure machine; one end of the support rod is connected with the fixed support seat; the other end of the support rod is connected with the stock pan support seat; the buffer springs are evenly arranged around the center of the stock pan support seat as a circle center; the quantity of the buffer springs is 7-11; the elastic coefficient of the buffer springs is 120-150 N/mm; the stock pan is connected with the buffer springs; in a low-pressure casting production process, four edge dies of a die are opened to lift a backform to a certain height and then remove a blank, the stock pan is removed to the lower part of the backform, the distance between the lower rim of the blank and the stock pan is adjusted to 40-60 mm, the blank is ejected out by driving a backform push rod cover board, the blank falls over the stock pan, and the stock pan is removed. Therefore, the deformation after the blank is demolded is greatly reduced by the device; the subsequent machining accuracy is improved.
Description
Technical field
The utility model relates to low-pressure die casting plant field, specifically, relates to a kind of device that prevents low pressure casting product casting distortion.
Background technology
In aluminum alloy wheel of vehicle manufacture process, low pressure casting is the key factor that affects product cost and qualification rate.In the bad product of low pressure casting, blank distortion has accounted for 20%～30%.Impact while causing the main cause of blank distortion to have the too high and demoulding of knockout course mold temperature between blank and receiver is excessive, and the distortion that the shock between blank and receiver causes during wherein with the demoulding is in the majority.During the demoulding of aluminum alloy wheel of vehicle low pressure casting, blank temperature is between 350～450 ℃, very low in the blank intensity of this temperature range, is very easy to distortion after being impacted; During the demoulding simultaneously, aluminum-alloy wheel blank and the direct striking face of receiver are lower rim earflap, and in the follow-up mechanical processing process that must carry out of aluminum alloy wheel of vehicle, lower rim earflap position is the positioning reference plane of process, if this processing positioning datum facial disfigurement, to directly affect machining accuracy, and cause overproof, the circular runout of product dynamic balancing after processing and end to the variety of problems such as overproof of beating; And larger this problem of wheel diameters is more outstanding.In aluminum current wheel industry casting process, not only the distance between blank lower rim and receiver is more than 100 ㎜, and blank is directly fallen on receiver after ejecting, while having caused the demoulding, impact is excessive, particularly large-sized aluminium alloy wheel demoulding deformation problem is very outstanding for demoulding deformation, so aluminum alloy wheel of vehicle industry is badly in need of finding a kind of device that prevents low pressure casting product casting distortion.
Summary of the invention
The purpose of this utility model is that demoulding deformation causes that the dynamic balancing of machining process product is overproof when overcoming current pressure cast aluminum-alloy wheel knockout course blank and fall receiver process, circular runout, end be to the problem such as overproof of beating, and a kind of device that can effectively prevent low pressure casting product casting distortion is provided.
The technical scheme that realizes above-mentioned purpose is: a kind of device that prevents low pressure casting product casting distortion, is comprised of hydraulic jack, fixed supporting seat, support bar, receiver supporting seat, buffer spring, receiver.Hydraulic jack is connected with support bar, for driving receiver to rotate; Fixed supporting seat is assemblied on air injection machine frame support; Support bar one end is connected with fixed supporting seat, and the other end is connected with receiver supporting seat; Buffer spring be take receiver supporting seat center and is evenly arranged as the center of circle, and buffer spring is done aluminum-alloy wheel weight according to board need assemble 7～11, and the coefficient of elasticity of buffer spring is 120～150N/ ㎜, and receiver is connected with buffer spring.In low pressure casting production process, after 4 limit moulds of opening mold, after backform is risen to certain altitude, blank is extracted, receiver is moved to the positive bottom of backform by hydraulic jack, distance between adjustment blank lower rim and receiver, at 40～60 ㎜, drives backform push rod cover plate that blank is ejected; Blank drops on receiver, and receiver is shifted out, and the whole low pressure casting process demoulding completes.This device by shortening distance between blank lower rim and receiver, buffer spring etc. be set effectively cushioned the impact between blank and receiver, greatly reduce the distortion after the blank demoulding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model, be described in further detail.
As Fig. 1, a kind of device that prevents low pressure casting product casting distortion, is comprised of hydraulic jack 1, fixed supporting seat 2, support bar 3, receiver supporting seat 4, buffer spring 5, receiver 6.Hydraulic jack 1 is connected with support bar 2, can drive receiver 6 to rotate; Fixed supporting seat 2 is assemblied on low press frame support; Support bar 3 one end are connected with fixed supporting seat 2, and the other end is connected with receiver supporting seat 4; Buffer spring 5 be take receiver supporting seat 4 centers and is evenly arranged as the center of circle, and buffer spring 5 is done 7 of aluminum-alloy wheel weight assemblings according to board, and the coefficient of elasticity of buffer spring 5 is 120N/ ㎜, and receiver 6 is connected with buffer spring 5.In low pressure casting production process, after 4 limit moulds of opening mold, backform is risen to certain altitude extracts blank, receiver 6 is moved to the positive bottom of backform by hydraulic jack 1, distance between adjustment blank lower rim and receiver 6 is at 50 ㎜, drive backform push rod cover plate that blank is ejected, blank drops on receiver 6; Receiver 6 is shifted out, and the whole low pressure casting process demoulding also completes.
Claims (1)
1. a device that prevents low pressure casting product casting distortion, is characterized in that: this device is comprised of hydraulic jack (1), fixed supporting seat (2), support bar (3), receiver supporting seat (4), buffer spring (5), receiver (6); Hydraulic jack (1) is connected with support bar (2), in order to drive the rotation of receiver (6); Fixed supporting seat (2) is assemblied on low press frame support; Support bar (3) one end is connected with fixed supporting seat (2), and the other end is connected with receiver supporting seat (4); Buffer spring (5) be take receiver supporting seat (4) center and is evenly arranged as the center of circle, and buffer spring is done 7～11 of aluminum-alloy wheel weight assemblings according to board, and the coefficient of elasticity of buffer spring is 120～150N/ ㎜; Receiver (6) is connected with buffer spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435844.XU CN203409232U (en) | 2013-07-22 | 2013-07-22 | Device for preventing low-pressure casting product from deforming in casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435844.XU CN203409232U (en) | 2013-07-22 | 2013-07-22 | Device for preventing low-pressure casting product from deforming in casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409232U true CN203409232U (en) | 2014-01-29 |
Family
ID=49972160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320435844.XU Expired - Fee Related CN203409232U (en) | 2013-07-22 | 2013-07-22 | Device for preventing low-pressure casting product from deforming in casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520426A (en) * | 2017-07-03 | 2017-12-29 | 北京航星机器制造有限公司 | A kind of heavy castings low pressure casting carrying conversion equipment and its manufacture method |
| CN112024848A (en) * | 2020-11-03 | 2020-12-04 | 江苏凯特汽车部件有限公司 | Method and device capable of eliminating large-size thermal nodes of automobile aluminum alloy wheel |
-
2013
- 2013-07-22 CN CN201320435844.XU patent/CN203409232U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520426A (en) * | 2017-07-03 | 2017-12-29 | 北京航星机器制造有限公司 | A kind of heavy castings low pressure casting carrying conversion equipment and its manufacture method |
| CN112024848A (en) * | 2020-11-03 | 2020-12-04 | 江苏凯特汽车部件有限公司 | Method and device capable of eliminating large-size thermal nodes of automobile aluminum alloy wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20160722 |