CN111283140A - Precision casting wax blank processing technology - Google Patents
Precision casting wax blank processing technology Download PDFInfo
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- CN111283140A CN111283140A CN202010140754.2A CN202010140754A CN111283140A CN 111283140 A CN111283140 A CN 111283140A CN 202010140754 A CN202010140754 A CN 202010140754A CN 111283140 A CN111283140 A CN 111283140A
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- wax
- precision casting
- processing technology
- blank
- forming mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
Abstract
The invention discloses a precision casting wax blank processing technology, which comprises the following steps: heating and melting the prepared wax material into a liquid state, and then filtering the melted wax material through a filter screen; adding the filtered molten wax material into a constant-temperature barrel and standing for 4-5 hours; adding the assembled forming die into a thermostatic chamber to remove residual wax materials, washing surface impurities with clear water, and then putting the forming die into the thermostatic chamber again until the water in the forming die is completely evaporated; the forming die is fixed in the wax blank precision casting auxiliary device, the wax blank precision casting auxiliary device is controlled to work, air in the forming die is exhausted, and wax materials are supplemented in time according to the change of the wax materials at the position of the wax injection hole; after natural cooling, separating the forming die from the wax blank precision casting auxiliary device, and taking out the wax blank. The precision casting wax blank processing technology achieves the purposes of facilitating the operation of workers, ensuring the molding quality of the wax blank and improving the processing efficiency of the wax blank.
Description
Technical Field
The invention relates to the technical field of wax blank processing, in particular to a precision casting wax blank processing technology.
Background
Before wax material pours into the mould at present, the mould is in the low temperature state to corner wax material in the mould just can condense soon, and the air in the mould also can not fully be discharged, thereby the mould can not fully be filled by wax material, and the wax embryo is processed into the qualification rate low, causes the influence to the processingquality of wax embryo simultaneously.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a precision casting wax blank processing technology, which solves the problems that the mould is in a low-temperature state before wax materials are injected into the mould, so that the wax materials at the corners in the mould can be quickly condensed, air in the mould can not be fully discharged, the mould can not be fully filled with the wax materials, the wax blank processing yield is low, and the processing quality of the wax blank is influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a precision casting wax blank processing technology comprises the following steps:
placing the prepared wax material in a heating tank, heating the heating tank, stirring by a metal rod in the heating process until the wax material is completely melted into a liquid state, and filtering particle impurities in the wax material by a filter screen; the liquid wax material is filtered, the purity of the wax material is guaranteed, meanwhile, the temperature is raised and the wax material is heated before being filtered by the filter screen, and the wax material is prevented from being condensed on the surface of the filter screen to cause blockage during filtering.
Step two, adding the filtered molten wax material into a constant-temperature barrel, ensuring that the wax material is always in a liquefied state in the constant-temperature barrel, and standing the wax material in the constant-temperature barrel for 4-5 hours for later use;
step three, adding the assembled forming mold into a thermostatic chamber, setting the temperature of the thermostatic chamber at 90 ℃, standing the forming mold for 1 hour until redundant wax materials in the forming mold are melted and discharged, taking out the forming mold, washing surface impurities with clear water, then putting the forming mold into the thermostatic chamber again, setting the temperature at 110 ℃ until water in the forming mold is completely evaporated; the inner cavity of the mold is cleaned, and the processing precision of the wax blank is improved.
Fourthly, fixing the forming mold in the wax blank precision casting auxiliary device, controlling the temperature of the wax blank precision casting auxiliary device to be 80 ℃, adopting wax materials in the constant-temperature barrel through the wax injection gun, aligning the gun nozzle of the wax injection gun to the wax injection hole, and starting wax injection until the wax materials are fully injected into the forming mold; the molding rate of the wax blank is improved, and the operation of workers is convenient.
Controlling a wax blank precision casting auxiliary device to work, discharging air in the forming die, and timely supplementing wax materials according to the change of the wax materials at the position of a wax injection hole;
and step six, stopping heat supply of the wax blank precision casting auxiliary device when the liquid level of the wax material at the wax hole position does not change any more, separating the forming mold from the wax blank precision casting auxiliary device after natural cooling, cooling the whole forming mold in cold water again, splitting the mold after cooling, and taking out the wax blank.
Preferably, the temperature in the heating tank in the first step is set to be 81-84 ℃, the filter screen is made of a metal material, and the filter screen is subjected to heating treatment at 60 ℃ before filtration.
Preferably, in the first step, the wax material consists of paraffin and stearic acid.
Preferably, the temperature in the constant temperature barrel in the second step is set to be 60 ℃.
Preferably, the natural cooling time of the wax embryo in the sixth step is 80-90 minutes.
Preferably, wax embryo precision casting auxiliary device is including supporting the support plate, the left side rotation of supporting the support plate bottom is connected with supplementary landing leg, the right side rotation of supporting the support plate bottom is connected with drive adjustment mechanism, the fixed grip block of left side fixedly connected with at support plate top, support the inside right side fixedly connected with transmission spout of support plate, the inside lateral position of transmission spout rotates and is connected with the transmission lead screw, the overcoat and the threaded connection of transmission lead screw have the transmission slider, the top fixedly connected with activity grip block of transmission slider, the inboard of activity grip block and fixed grip block and the equal fixedly connected with electric heating piece in bottom.
Preferably, the transmission lead screw is located the outside right side fixedly connected with hand rocker of transmission spout, the right side fixedly connected with spirit level on support plate outside top. The levelness of the wax mould can be adjusted according to the level meter, and the accuracy of wax blank processing is guaranteed.
Preferably, the driving adjusting mechanism comprises a supporting base plate, a transmission threaded sleeve rod is rotatably connected to the left side of the top of the supporting base plate, a reciprocating screw rod penetrates through the top end of the transmission threaded sleeve rod and is in threaded connection with the top end of the reciprocating screw rod, and the top end of the reciprocating screw rod is rotatably connected with the right side of the bottom of the supporting support plate.
Preferably, the right side fixedly connected with driving motor at supporting baseplate top, driving motor's top output end fixedly connected with drive gear, the outside axle center department fixedly connected with driven gear of transmission screw loop pole, driven gear and drive gear meshing are connected.
(III) advantageous effects
The invention provides a processing technology of a precision casting wax blank. The method has the following beneficial effects:
according to the processing technology of the precision casting wax blank, the liquid wax material is filtered, so that the purity of the wax material is ensured, and meanwhile, the temperature is raised and the wax material is heated before being filtered by the filter screen, so that the wax material is prevented from being condensed on the surface of the filter screen to cause blockage during filtering; the forming die is placed between the fixed clamping plate and the movable clamping plate, the hand lever is shaken, the movable clamping plate is driven to move leftwards through the transmission of the transmission slide block and the transmission screw rod, the clamping of the forming die is realized, at the moment, the electric heating block is controlled to work, the temperature is set at 80 ℃, wax materials in the constant temperature barrel are taken through the wax injection gun, then the gun nozzle of the wax injection gun is aligned to the wax injection hole to start wax injection until the forming die is filled with the wax materials, the driving motor is controlled to work at the same time, the transmission threaded sleeve rod is driven to rotate through gear meshing, the right side of the supporting support plate is driven to reciprocate in the vertical direction, the forming die is driven to reciprocate, the air in the forming die can be discharged, the wax materials in the forming die are timely supplemented according to the change of the wax materials at the position of the wax injection hole, finally, the levelness of the wax die is adjusted according to the level gauge, and the wax blank, the purposes of facilitating the operation of workers, ensuring the molding quality of the wax blank and improving the processing efficiency of the wax blank are achieved.
Drawings
FIG. 1 is a schematic structural view of a wax blank precision casting auxiliary device according to the present invention;
fig. 2 is a schematic structural view of the driving adjustment machine of the present invention.
In the figure: the device comprises a support carrier plate 1, an auxiliary supporting leg 2, a driving adjusting mechanism 3, a support base plate 301, a transmission threaded sleeve rod 302, a reciprocating screw rod 303, a driving motor 304, a driving gear 305, a driven gear 306, a fixed clamping plate 4, a transmission sliding groove 5, a transmission screw rod 6, a transmission sliding block 7, a movable clamping plate 8, an electric heating block 9, a hand-operated rod 10 and a level gauge 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A precision casting wax blank processing technology comprises the following steps:
placing a prepared wax material consisting of paraffin and stearic acid in a heating tank, heating the heating tank, stirring by a metal rod in the heating process until the wax material is completely melted into a liquid state, and filtering particle impurities in the wax material by a filter screen; the temperature in the heating groove is set to be 81-84 ℃, the filter screen is made of metal materials, the filter screen is subjected to 60 ℃ heating treatment before filtration, liquid wax materials are filtered, the purity of the wax materials is guaranteed, meanwhile, the filter screen is heated up before filtration, and the wax materials are prevented from being condensed on the surface of the filter screen to cause blockage during filtration.
Step two, adding the filtered molten wax material into a constant-temperature barrel, ensuring that the wax material is always in a liquefied state in the constant-temperature barrel, standing the wax material in the constant-temperature barrel for 4-5 hours, and setting the temperature in the constant-temperature barrel to be 60 ℃ for later use;
step three, adding the assembled forming mold into a thermostatic chamber, setting the temperature of the thermostatic chamber at 90 ℃, standing the forming mold for 1 hour until redundant wax materials in the forming mold are melted and discharged, taking out the forming mold, washing surface impurities with clear water, then putting the forming mold into the thermostatic chamber again, setting the temperature at 110 ℃ until water in the forming mold is completely evaporated; the inner cavity of the mold is cleaned, and the processing precision of the wax blank is improved.
Fourthly, the forming mold is fixed in the wax blank precision casting auxiliary device, the forming mold is placed between the fixed clamping plate 4 and the movable clamping plate 8, the hand-operated rod 10 is shaken, the movable clamping plate 8 is driven to move leftwards through the transmission of the transmission slide block 7 and the transmission screw rod 6, the clamping of the forming mold is realized, the electric heating block 9 is controlled to work, the temperature is set to be 80 ℃, wax materials in the constant-temperature barrel are taken through the wax injection gun, then the gun nozzle of the wax injection gun is aligned to the wax injection hole, and the wax injection is started until the wax materials are fully injected into the forming mold; the molding rate of the wax blank is improved, and the operation of workers is convenient.
Controlling a driving motor 304 to work, driving a transmission threaded sleeve rod 302 to rotate through gear meshing, driving the right side of the support carrier plate 1 to reciprocate in the vertical direction, enabling the forming mold to shake in a reciprocating mode, discharging air in the forming mold, timely supplementing wax materials according to changes of the wax materials at the wax injection hole, finally adjusting the levelness of the wax mold according to a level gauge 11, ensuring that the wax blank is formed in a horizontal position, discharging air in the forming mold, and timely supplementing wax materials according to changes of the wax materials at the wax injection hole;
and step six, stopping heat supply of the wax blank precision casting auxiliary device when the liquid level of the wax material at the wax hole position does not change any more, separating the forming mold from the wax blank precision casting auxiliary device after natural cooling, placing the whole forming mold in cold water for cooling again for 80-90 minutes, splitting the mold after cooling, and taking out the wax blank.
Wax embryo precision casting auxiliary device is including supporting support plate 1, the left side rotation of supporting support plate 1 bottom is connected with auxiliary leg 2, the right side rotation of supporting support plate 1 bottom is connected with drive adjustment mechanism 3, the fixed grip block 4 of left side fixedly connected with at support plate 1 top, the inside right side fixedly connected with transmission spout 5 of supporting support plate 1, the inside lateral position of transmission spout 5 rotates and is connected with transmission lead screw 6, the overcoat and the threaded connection of transmission lead screw 6 have transmission slider 7, the top fixedly connected with activity grip block 8 of transmission slider 7, the inboard of activity grip block 8 and fixed grip block 4 and the equal fixedly connected with electric heating block 9 in bottom. The right side of the transmission screw 6, which is positioned outside the transmission chute 5, is fixedly connected with a hand-operated lever 10, and the right side of the top end outside the support plate 1 is fixedly connected with a level gauge 11. And the levelness of the wax mould is adjusted according to the level meter, so that the accuracy of wax blank processing is ensured. The driving adjusting mechanism 3 comprises a supporting base plate 301, a transmission threaded sleeve rod 302 is rotatably connected to the left side of the top of the supporting base plate 301, a reciprocating screw rod 303 penetrates through the top end of the transmission threaded sleeve rod 302 and is in threaded connection with the top end of the reciprocating screw rod 303, and the top end of the reciprocating screw rod 303 is rotatably connected with the right side of the bottom of the supporting carrier plate 1. The right side of the top of the supporting bottom plate 301 is fixedly connected with a driving motor 304, the top output end of the driving motor 304 is fixedly connected with a driving gear 305, the external axis of the transmission threaded sleeve rod 302 is fixedly connected with a driven gear 306, and the driven gear 306 is meshed with the driving gear 305.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The precision casting wax blank processing technology is characterized by comprising the following steps:
placing the prepared wax material in a heating tank, heating the heating tank, stirring by a metal rod in the heating process until the wax material is completely melted into a liquid state, and filtering particle impurities in the wax material by a filter screen;
step two, adding the filtered molten wax material into a constant-temperature barrel, ensuring that the wax material is always in a liquefied state in the constant-temperature barrel, and standing the wax material in the constant-temperature barrel for 4-5 hours for later use;
step three, adding the assembled forming mold into a thermostatic chamber, setting the temperature of the thermostatic chamber at 90 ℃, standing the forming mold for 1 hour until redundant wax materials in the forming mold are melted and discharged, taking out the forming mold, washing surface impurities with clear water, then putting the forming mold into the thermostatic chamber again, setting the temperature at 110 ℃ until water in the forming mold is completely evaporated;
fourthly, fixing the forming mold in the wax blank precision casting auxiliary device, controlling the temperature of the wax blank precision casting auxiliary device to be 80 ℃, adopting wax materials in the constant-temperature barrel through the wax injection gun, aligning the gun nozzle of the wax injection gun to the wax injection hole, and starting wax injection until the wax materials are fully injected into the forming mold;
controlling a wax blank precision casting auxiliary device to work, discharging air in the forming die, and timely supplementing wax materials according to the change of the wax materials at the position of a wax injection hole;
and step six, stopping heat supply of the wax blank precision casting auxiliary device when the liquid level of the wax material at the wax hole position does not change any more, separating the forming mold from the wax blank precision casting auxiliary device after natural cooling, cooling the whole forming mold in cold water again, splitting the mold after cooling, and taking out the wax blank.
2. The precision casting wax blank processing technology according to claim 1, wherein the processing technology comprises the following steps: in the first step, the temperature in the heating tank is set to be 81-84 ℃, the filter screen is made of metal materials, and the filter screen is subjected to heating treatment at 60 ℃ before filtration.
3. The precision casting wax blank processing technology according to claim 1, which is characterized in that: in the first step, the wax material consists of paraffin and stearic acid.
4. The precision casting wax blank processing technology according to claim 1, wherein the processing technology comprises the following steps: and setting the temperature in the constant-temperature barrel to be 60 ℃ in the second step.
5. The precision casting wax blank processing technology according to claim 1, wherein the processing technology comprises the following steps: and in the sixth step, the natural cooling time of the wax embryo is 80-90 minutes.
6. The precision casting wax blank processing technology according to claim 1, wherein the processing technology comprises the following steps: wax embryo precision casting auxiliary device is including supporting support plate (1), the left side of supporting support plate (1) bottom is rotated and is connected with auxiliary leg (2), the right side of supporting support plate (1) bottom is rotated and is connected with drive adjustment mechanism (3), left side fixedly connected with fixed grip block (4) at support plate (1) top, support inside right side fixedly connected with transmission spout (5) of support plate (1), the inside lateral position of transmission spout (5) is rotated and is connected with transmission lead screw (6), the overcoat and the threaded connection of transmission lead screw (6) have transmission slider (7), the top fixedly connected with activity grip block (8) of transmission slider (7), the inboard and the equal fixedly connected with electric heating piece (9) in bottom of activity grip block (8) and fixed grip block (4).
7. The precision casting wax blank processing technology according to claim 6, wherein the processing technology comprises the following steps: the transmission screw rod (6) is located the outside right side fixedly connected with hand rocking bar (10) of transmission spout (5), support right side fixedly connected with spirit level (11) on support plate (1) outside top.
8. The precision casting wax blank processing technology according to claim 7, wherein: drive adjustment mechanism (3) are including supporting baseplate (301), the left side rotation at supporting baseplate (301) top is connected with transmission screw thread loop bar (302), the inside top of transmission screw thread loop bar (302) is run through and threaded connection has reciprocal lead screw (303), the top of reciprocal lead screw (303) is connected with the right side rotation of supporting support plate (1) bottom.
9. The precision casting wax blank processing technology according to claim 8, wherein: the right side fixedly connected with driving motor (304) at supporting baseplate (301) top, the top output end fixedly connected with drive gear (305) of driving motor (304), the outside axle center fixedly connected with driven gear (306) of transmission screw loop pole (302), driven gear (306) and drive gear (305) meshing are connected.
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| CN202010140754.2A CN111283140A (en) | 2020-03-03 | 2020-03-03 | Precision casting wax blank processing technology |
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| CN202010140754.2A CN111283140A (en) | 2020-03-03 | 2020-03-03 | Precision casting wax blank processing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112222309A (en) * | 2020-08-26 | 2021-01-15 | 合肥常青机械股份有限公司 | Automobile stamping part positioning device and using method thereof |
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Application publication date: 20200616 |