CN109434024A - A kind of process equipment and processing technology of gear ring blank - Google Patents
A kind of process equipment and processing technology of gear ring blank Download PDFInfo
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- CN109434024A CN109434024A CN201811587984.2A CN201811587984A CN109434024A CN 109434024 A CN109434024 A CN 109434024A CN 201811587984 A CN201811587984 A CN 201811587984A CN 109434024 A CN109434024 A CN 109434024A
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- core model
- thermally conductive
- piece
- gear ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/065—Cooling or heating equipment for moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of process equipments of gear ring blank, including upper mould cover set by core model group set by mold base mold base, the external mold group of mold base upper end institute inserting, external mold group inside and core model group upper end, the invention also discloses a kind of processing technologys of gear ring blank comprising the steps of: step 1: stock；Step 2: mold prepares；Step 3: mold overall package；Step 4: mold preheating；Step 5: model casting；Step 6: solidified forming；Step 7: die sinking pickup；Step 8: finishing；Step 9: ageing treatment.In the present invention, outer die casing and core model are split type structure, and processing and fabricating is fairly simple, and the surface quality of its model silhouette has bigger raising；Entire process equipment, primary preparation can Reusability, and its assembling is relatively simple, can once produce more than one piece gear ring blank, substantially increase production efficiency.
Description
Technical field
The present invention relates to gear ring blank processing technique field, specially a kind of process equipment of gear ring blank and processing work
Skill.
Background technique
The production of gear ring blank is an important link of ring gear machining, and the quality of gear ring blank production decides gear ring
Total quality, the production of gear ring blank is completed by forging mostly in the prior art, but certain working environments it is more severe,
In the case that heavily loaded and frequency of impact is big, gear ring blank generallys use ironcasting, especially in certain heavy, jumboes
In, the production of large gear ring is completed often through sand casting, and the sand casting of large gear ring, operating process is relatively simple,
Production cost is low, but it there is also following drawbacks in the actual operation process:
1. the sand mold of gear ring blank production, because of gigantism, the sand mold of production needs to have very high intensity to meet casting
Demand, therefore the difficulty of its sand mold production is big, the high rejection rate of sand mold；
2. gear ring blank uses sand casting, because its size is larger, therefore can occur in casting process because molten iron is cold
Fast and the phenomenon that lead to misrun；
3. the blank of gear ring uses sand casting, although the cost of manufacture of sand mold is lower, its manufacturing process is more
Time-consuming can not further improve production efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of processing technologys of gear ring blank, to solve to propose tooth in above-mentioned background technique
The sand mold of blank production is enclosed because of gigantism, the sand mold of production needs to have very high intensity to meet casting demand, therefore its
The difficulty of sand mold production is big, the high rejection rate of sand mold, because gear ring blank sand mold size is larger, can occur in casting process because of iron
The cost of manufacture of the phenomenon that water cooling leads to misrun fastly and sand mold is lower, but its manufacturing process more time-consuming, nothing
Method further improves the problem of production efficiency.
To achieve the above object, the invention provides the following technical scheme: a kind of process equipment of gear ring blank, including mold
Base mould pedestal, the external mold group of mold base upper end institute inserting, on the inside of external mold group set by core model group and core model group upper end institute
If upper mould cover, the upper end of the mold base is laid with the street jack I of trough body structure, in the mold base upper surface
Between be inserted with the thermally conductive positioning column I of rod-like structure at position and in the jack I of street, the outside of the thermally conductive positioning column I and
The thermally conductive positioning column II of rod-like structure is inserted in the jack I of street；
The external mold group is mutually connected in series by outer die casing, and the thermally conductive positioning column II phase of external mold group and mold base upper surface
The main body of inserting, the outer die casing is formed by the outer mold piece phase scarf of arc-shaped surface plate structure, the outside of the outer mold piece
It is fixedly connected with the fixed connecting plate of curved surface plate structure, and is connected between outer mold piece and fixed connecting plate by the way that connection bolt is fixed
It is connected together, one end of the outer mold piece is equipped with the locating slot of trough body structure, and is equipped with boss structure in the other end of outer mold piece
Locating piece, between the outer mold piece through locating slot with locating piece phase inserting together with, on the wall body of the outer mold piece uniformly
Jointing holes II equipped with cavernous structure corresponding with the position thermally conductive positioning column II of mold base upper end, the outer die casing it is upper
Hold and be inserted with thermally conductive positioning column II in jointing holes II, and between outer die casing by the thermally conductive positioning column II of external mold set upper side with
The jointing holes II phase inserting of outer die casing lower end and be fixed together；
The core model group is mutually connected in series by the core model of cylindrical structure, and is equipped with pouring for cavernous structure in the centre of core model
Orifice is arranged with the spacer ring of ring structure in the outer circle of the core model, and the outer circle of core model is divided into two under mountain by spacer ring
The die cavity of a annular trough body structure, the deflector hole for having cavernous structure is drawn from the inner wall of plug hole to the slot bottom of die cavity, by deflector hole
Centre be divided into three sections of annular convex platform structures to the circumferential direction of two sides up and down of core model, and the annular convex platform structure of the top is upper mold
Section, the lowermost annular convex platform structure are lower mold segment, and intermediate annular convex platform structure is middle mold segment, the upper mold segment, middle mold segment
With lower mold segment by being adhesively fixed into an entirety, it is equipped with and mold base upper surface from the upper end of core model to the lower end of core model
The jointing holes III of the corresponding cavernous structure in the position thermally conductive positioning column I, and thermally conductive positioning is inserted in the upper end of jointing holes III
Column I fixes company by the thermally conductive positioning column I of core model upper end and the jointing holes III phase inserting of core model lower end between the core model
It is connected together；
The upper end of the external mold group and core model group is inserted with upper mould cover, and the centre of the upper mould cover is equipped with opposite with plug hole
The plug hole II for the cavernous structure answered, and be fixedly connected with the tundish of bell mouth shape structure in the upper end of plug hole II, it is described on
The middle position of die cap lower end surface is equipped with the jointing holes of cavernous structure corresponding with the position thermally conductive positioning column I of core model upper end
IV, and the position thermally conductive positioning column II with external mold set upper side is equipped on the outside in jointing holes IV and the lower end surface in upper mould cover
The jointing holes V of corresponding cavernous structure.
Preferably, the both ends of the fixed connecting plate are mutually overlapped with the outer mold piece of two phase scarves respectively, and are fixedly connected
The medial surface of plate and the lateral surface of outer mold piece fit, and the connection bolt is separately fixed at the both ends of fixed connecting plate.
Preferably, the riser of annular trough body structure is laid on the upper surface of the die cavity, the deflector hole is poured certainly
The inner wall in hole is arranged to the slot bottom of die cavity in umbrella.
Preferably, described, the lower end of the mold base and the lower section of street jack I be equipped with trough body structure wiring
Chamber, the wire connection cavity is interior to be equipped with the conducting wire being mutually electrically connected with the lower end of thermally conductive positioning column I, the conducting wire and mold base lower end
Power outlet set by outside is mutually electrically connected, and the lower end of the conducting wire and is furnished with shell structure the groove body of wire connection cavity is embedded
Capping.
Preferably, the outer wall of the plug hole and the inner wall phase sliding sleeve of outer mold piece are matched, and the quantity of core model and outer die casing
Equal and position is corresponding.
Invention additionally discloses a kind of processing technologys of gear ring blank comprising the steps of:
Step 1: stock is matched by gear ring cast raw material；
Step 2: mold prepares, and the mold parts of gear ring blank casting is cleaned out, and in outer mold piece
Wall, the cavity inner wall of die cavity, plug hole I, deflector hole, tundish and plug hole II brush release agent, and by the lower end of upper mold segment
Then face, the upper and lower end faces of middle die forging, the equal spreading glue in upper surface of lower die forging spell upper mold segment, middle mold segment and lower mold segment
It connects and is bonded into core model, brush one layer of refractory seals glue in the lower end surface of entire outer die casing and the lower end of core model；
Step 3: core model is first concatenated by sequence from bottom to top in the centre of mold base by mold overall package
Constitute core model group, then by outside of the outer die casing in core model and the upper end in mold base be concatenated constitute external mold group, then
Again by upper mould cover inserting in the upper end of core model group and external mold group, to complete the assembling of entire mold；
Step 4: power outlet and external power supply are connected in mold preheating, make mold by thermally conductive positioning column I with it is thermally conductive
Positioning column II is preheated, and preheating temperature is 65 DEG C -85 DEG C；
Step 5: model casting, the stock in step 1 is launched and is heated into molten iron in smelting furnace, then by molten iron contain into
Tundish in casting ladle and along mold upper end pours into mould inside；
Step 6: solidified forming waits for quietly -6 hours 4 hours after casting complete, and the molten iron in die cavity is made to cool and solidify forming
Pouring piece；
Step 7: die sinking pickup successively removes upper mould cover with outer die casing, from top to bottom then by the upper mold on core model
Section, middle mold segment successively remove from top to bottom with lower mold segment, and then pouring piece are taken out out of mold；
Step 8: pouring on pouring piece is begun to crop up to saw from pouring piece and be removed, then by the overlap and hair on pouring piece by finishing
Thorn is rejected；
Step 9: ageing treatment launches pouring piece to be heated to 550 DEG C in heating furnace, and it is -8 small then to keep the temperature 4 hours
When, it comes out of the stove after cooling the temperature to 150 DEG C, cooling rate is 15 DEG C/h -20 DEG C/h, and then completes the system of gear ring blank
It is standby.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention setting rationally, functional, have with
Lower advantage:
1. outer die casing and core model are split type structure, processing and fabricating is fairly simple, and the surface of its model silhouette
Quality has bigger raising；
2. being added by power outlet, conducting wire, thermally conductive positioning column I and thermally conductive positioning column II to the model cavity of whole equipment
Heat heat preservation, and then can guarantee that molten iron can reduce its cooling velocity during casting, and then improve the flowing of molten iron
Property, keep the gear ring blank of casting fuller；
3. entire process equipment, primary preparation can Reusability, and its assembling is relatively simple, can once produce more than one piece
Gear ring blank substantially increases production efficiency.
Detailed description of the invention
Fig. 1 is axis side structure explosive view of the present invention；
Fig. 2 is main view of the present invention；
Fig. 3 is the schematic diagram of the section structure at A-A in Fig. 2；
Fig. 4 is right view of the present invention；
Fig. 5 is the schematic diagram of the section structure at B-B in Fig. 4；
Fig. 6 is mold base axis side structure view；
Fig. 7 is the half-sectional topology view of mold base；
Fig. 8 is outer die casing structural front view；
Fig. 9 is cross-section structure view at C-C in Fig. 8；
Figure 10 is the half-sectional topology view of core model；
Figure 11 is the half-sectional topology view of upper mould cover.
In figure: 1, mold base；2, outer die casing；3, core model；4, upper mould cover；101, street jack I；102, thermally conductive positioning column I；
103, thermally conductive positioning column II；104, wire connection cavity；105, conducting wire；106, it covers；107, power outlet；201, outer mold piece；202, solid
Determine connecting plate；203, bolt is connected；204, jointing holes II；205, locating slot；206, locating piece；301, plug hole；302, die cavity；
303, riser；304, deflector hole；305, jointing holes III；306, upper mold segment；307, spacer ring；308, middle mold segment；309, lower die
Section；401, tundish；402, plug hole II；403, jointing holes IV；404, jointing holes V.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 to Figure 11 is please referred to, the present invention provides a kind of technical solution: a kind of process equipment of gear ring blank, including mould
Have base mould pedestal 1, the external mold group of 1 upper end institute of mold base inserting, on the inside of external mold group set by core model group and core model group on
The set upper mould cover 4 in end, the upper end of mold base 1 is laid with the street jack I 101 of trough body structure, 1 upper surface of mold base
Middle position and the thermally conductive positioning column I 102, thermally conductive positioning column I of rod-like structure are inserted in street jack I 101
102 outside and the thermally conductive positioning column II 103 that rod-like structure is inserted in street jack I 101, wherein thermally conductive positioning column I
102 play the role of positioning and heating and thermal insulation with thermally conductive positioning column II 103 simultaneously；
External mold group is connected in series by 2 phase of outer die casing, and the thermally conductive positioning column II 103 of external mold group and 1 upper surface of mold base
The main body of phase inserting, outer die casing 2 is formed by the 201 phase scarf of outer mold piece of arc-shaped surface plate structure, the outside of outer mold piece 201
It is fixedly connected with the fixed connecting plate 202 of curved surface plate structure, and passes through connection between outer mold piece 201 and fixed connecting plate 202
Bolt 203 is fixed together, and one end of outer mold piece 201 is equipped with the locating slot 205 of trough body structure, and in outer mold piece 201
The other end is equipped with the locating piece 206 of boss structure, passes through locating slot 205 between outer mold piece 201 with 206 phase inserting of locating piece one
It rises, is laid on the wall body of outer mold piece 201 corresponding poroid with thermally conductive 103 position positioning column II of 1 upper end of mold base
The jointing holes II 204 of structure, the upper end of outer die casing 2 and is inserted with thermally conductive positioning column II 103 in jointing holes II 204, and outer
Thermally conductive positioning column II 103 and the 204 phase inserting of jointing holes II of 2 lower end of outer die casing between die sleeve 2 by 2 upper end of outer die casing
It is fixed together, this split type structure of outer die casing 2, so that the production and dismounting of outer die casing 2 are all relatively easy to, improves
Its assembly efficiency；
Core model group is connected in series by 3 phase of core model of cylindrical structure, and is equipped with the casting of cavernous structure in the centre of core model 3
Hole 301 is arranged with the spacer ring 307 of ring structure in the outer circle of core model 3, and the outer circle of core model 3 is divided into mountain by spacer ring 307
The die cavity 302 of lower two annular trough body structures, drawing from the inner wall of plug hole 301 to the slot bottom of die cavity 302 has leading for cavernous structure
Discharge orifice 304 is divided into three sections of annular convex platform structures from the centre of deflector hole 304 to the circumferential direction of two sides up and down of core model 3, and topmost
Annular convex platform structure be upper mold segment 306, the lowermost annular convex platform structure be lower mold segment 309, intermediate annular convex platform structure
For middle mold segment 308, upper mold segment 306, middle mold segment 308 and lower mold segment 309 are by being adhesively fixed into an entirety, by the upper of core model 3
It holds to be equipped with to the lower end of core model 3 and be connect with the thermally conductive corresponding cavernous structure in 102 position positioning column I of 1 upper surface of mold base
Jack III 305, and it is inserted with thermally conductive positioning column I 102 in the upper end of jointing holes III 305, pass through on core model 3 between core model 3
The 305 phase inserting of jointing holes III of thermally conductive positioning column I 102 and 3 lower end of core model at end and be fixed together, core model 3 this
Kind split type structure is relatively easy to the production of core model 3 and dismounting all, improves its assembly efficiency；
The upper end of external mold group and core model group is inserted with upper mould cover 4, and the centre of upper mould cover 4 is equipped with corresponding with plug hole 301
Cavernous structure plug hole II 402, and be fixedly connected with the tundish of bell mouth shape structure in the upper end of plug hole II 402
401, the middle position of 4 lower end surface of upper mould cover is equipped with corresponding poroid with thermally conductive 102 position positioning column I of 3 upper end of core model
The jointing holes IV 403 of structure, and be equipped with and outer die casing 2 in the outside of jointing holes IV 403 and on the lower end surface of upper mould cover 4
The jointing holes V 404 of the corresponding cavernous structure in thermally conductive 103 position positioning column II of upper end.
Further, the both ends of fixed connecting plate 202 are overlapped with 201 phase of outer mold piece of two phase scarves respectively, and fixed
The medial surface of connecting plate 202 and the lateral surface of outer mold piece 201 fit, and connection bolt 203 is separately fixed at fixed connecting plate 202
Both ends, so that outer mold piece 201 is fixedly connected into an entirety by fixed connecting plate 202.
Further, the riser 303 of annular trough body structure is laid on the upper surface of die cavity 302, deflector hole 304 is poured certainly
The inner wall of orifice 301 is arranged to the slot bottom of die cavity 302 in umbrella, and this structure of deflector hole 304 is conducive in the entire die cavity of molten iron
Flowing, improves the efficiency of casting and the quality of casting.
Further, the lower end of mold base 1 and the lower section of street jack I 101 be equipped with trough body structure wire connection cavity
104, wire connection cavity 104 is interior to be equipped with the conducting wire 105 being mutually electrically connected with the lower end of thermally conductive positioning column I 102, conducting wire 105 and mold bottom
107 phase of power outlet set by 1 lower end outside of seat is electrically connected, the lower end of conducting wire 105 and embedded in the groove body of wire connection cavity 104
Capping 106 equipped with shell structure, power outlet 107 is connected with external power supply, and then makes inserting in street jack I 101
Thermally conductive positioning column I 102 and thermally conductive positioning column II 103 is to whole equipment heating and thermal insulation.
Further, the outer wall of plug hole 301 and the inner wall phase sliding sleeve of outer mold piece 201 are matched, and core model 3 and outer die casing 2
Quantity it is equal and position is corresponding, make die cavity 302 form the gear ring blank chamber of a relative closure by this structure
Body structure.
Invention additionally discloses a kind of processing technologys of gear ring blank comprising the steps of:
Step 1: stock is matched by gear ring cast raw material；
Step 2: mold prepares, and the mold parts of gear ring blank casting is cleaned out, and in outer mold piece
Wall, the cavity inner wall of die cavity, plug hole I, deflector hole, tundish and plug hole II brush release agent, and by the lower end of upper mold segment
Then face, the upper and lower end faces of middle die forging, the equal spreading glue in upper surface of lower die forging spell upper mold segment, middle mold segment and lower mold segment
It connects and is bonded into core model, brush one layer of refractory seals glue in the lower end surface of entire outer die casing and the lower end of core model, it is whole to guarantee
Cavity set between a external mold group and core model forms closed casting type chamber, and then guarantees the casting quality of gear ring blank；
Step 3: core model is first concatenated by sequence from bottom to top in the centre of mold base by mold overall package
Constitute core model group, then by outside of the outer die casing in core model and the upper end in mold base be concatenated constitute external mold group, then
Again by upper mould cover inserting in the upper end of core model group and external mold group, to complete the assembling of entire mold, during assembly, press
Sequence is assembled, and neglected loading and misloading are avoided；
Step 4: power outlet and external power supply are connected in mold preheating, make mold by thermally conductive positioning column I with it is thermally conductive
Positioning column II is preheated, and preheating temperature is 65 DEG C -85 DEG C；
Step 5: model casting, the stock in step 1 is launched and is heated into molten iron in smelting furnace, then by molten iron contain into
Tundish in casting ladle and along mold upper end pours into mould inside；
Step 6: solidified forming waits for quietly -6 hours 4 hours after casting complete, and the molten iron in die cavity is made to cool and solidify forming
Pouring piece；
Step 7: die sinking pickup successively removes upper mould cover with outer die casing, from top to bottom then by the upper mold on core model
Section, middle mold segment successively remove from top to bottom with lower mold segment, and then pouring piece are taken out out of mold, in the process for taking out model element
In, pay attention to avoiding colliding with for mold and gear ring blank；
Step 8: pouring on pouring piece is begun to crop up to saw from pouring piece and be removed, then by the overlap and hair on pouring piece by finishing
Thorn is rejected, and the difficulty of processing of processing in next step is reduced；
Step 9: ageing treatment launches pouring piece to be heated to 550 DEG C in heating furnace, and it is -8 small then to keep the temperature 4 hours
When, it comes out of the stove after cooling the temperature to 150 DEG C, cooling rate is 15 DEG C/h -20 DEG C/h, and then completes the system of gear ring blank
It is standby.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of process equipment of gear ring blank, including mold base mold base (1), the inserting of mold base (1) upper end institute
Upper mould cover (4) set by core model group and core model group upper end set by the inside of external mold group, external mold group, it is characterised in that: the mold
The upper end of pedestal (1) is laid with the street jack I (101) of trough body structure, the middle position of mold base (1) upper surface
And the thermally conductive positioning column I (102) of rod-like structure is inserted in street jack I (101), outside the thermally conductive positioning column I (102)
Side and the thermally conductive positioning column II (103) that rod-like structure is inserted in street jack I (101)；
The external mold group is mutually connected in series by outer die casing (2), and the thermally conductive positioning column II of external mold group and mold base (1) upper surface
(103) main body of phase inserting, the outer die casing (2) is formed by outer mold piece (201) phase scarf of arc-shaped surface plate structure, institute
State the fixed connecting plate (202) that curved surface plate structure is fixedly connected on the outside of outer mold piece (201), and outer mold piece (201) and solid
Determine to be fixed together between connecting plate (202) by connecting bolt (203), one end of the outer mold piece (201) is equipped with slot
The locating slot (205) of body structure, and the locating piece (206) of boss structure, the external mold are equipped in the other end of outer mold piece (201)
Between block (201) through locating slot (205) together with locating piece (206) phase inserting, on the wall body of the outer mold piece (201)
It is laid with the jointing holes II of cavernous structure corresponding with thermally conductive (103) position positioning column II of mold base (1) upper end
(204), the upper end of the outer die casing (2) and thermally conductive positioning column II (103), and outer die casing are inserted in jointing holes II (204)
(2) it is mutually inserted between by the thermally conductive positioning column II (103) of outer die casing (2) upper end and the jointing holes II (204) of outer die casing (2) lower end
Match and is fixed together；
The core model group is mutually connected in series by the core model (3) of cylindrical structure, and is equipped with cavernous structure in the centre of core model (3)
Plug hole (301), is arranged with the spacer ring (307) of ring structure in the outer circle of the core model (3), and spacer ring (307) is by core
The outer circle of mould (3) is divided into the die cavity (302) of two annular trough body structures under mountain, from the inner wall of plug hole (301) to die cavity
(302) slot bottom draws the deflector hole (304) for having cavernous structure, from the centre of deflector hole (304) to two side ring up and down of core model (3)
To being divided into three sections of annular convex platform structures, and the annular convex platform structure of the top is upper mold segment (306), the lowermost annular convex platform
Structure is lower mold segment (309), and intermediate annular convex platform structure is middle mold segment (308), the upper mold segment (306), middle mold segment (308)
With lower mold segment (309) by being adhesively fixed into an entirety, it is equipped with from the upper end of core model (3) to the lower end of core model (3) and mold
The jointing holes III (305) of the corresponding cavernous structure in thermally conductive positioning column I (102) position of pedestal (1) upper surface, and patching
The upper end of hole III (305) is inserted with thermally conductive positioning column I (102), passes through the thermally conductive fixed of core model (3) upper end between the core model (3)
Position column I (102) and jointing holes III (305) the phase inserting of core model (3) lower end and be fixed together；
The upper end of the external mold group and core model group is inserted with upper mould cover (4), and the centre of the upper mould cover (4) is equipped with and plug hole
(301) the plug hole II (402) of corresponding cavernous structure, and horn mouth is fixedly connected in the upper end of plug hole II (402)
The tundish (401) of shape structure, the middle position of upper mould cover (4) lower end surface are equipped with the thermally conductive positioning with core model (3) upper end
The jointing holes IV (403) of the corresponding cavernous structure in column I (102) position, and in the outside of jointing holes IV (403) and in upper mold
The lower end surface of lid (4) is equipped with to be connect with the thermally conductive corresponding cavernous structure in (103) position positioning column II of outer die casing (2) upper end
Jack V (404).
2. a kind of process equipment of gear ring blank according to claim 1, it is characterised in that: the fixed connecting plate
(202) both ends are mutually overlapped with the outer mold piece of two phase scarves (201) respectively, and the medial surface of fixed connecting plate (202) and outer
The lateral surface of module (201) fits, and connection bolt (203) is separately fixed at the both ends of fixed connecting plate (202).
3. a kind of process equipment of gear ring blank according to claim 1, it is characterised in that: the die cavity (302) it is upper
The riser (303) of annular trough body structure is laid on end face, the deflector hole (304) is from the inner wall of plug hole (301) to mould
The slot bottom of chamber (302) is arranged in umbrella.
4. a kind of process equipment of gear ring blank according to claim 1, it is characterised in that: described, the mold base
(1) lower end and the wire connection cavity (104) of trough body structure is equipped in the lower section of street jack I (101), in the wire connection cavity (104)
Equipped with the conducting wire (105) that the lower end with thermally conductive positioning column I (102) is mutually electrically connected, the conducting wire (105) and mold base (1)
Power outlet set by lower end outside (107) is mutually electrically connected, the lower end of the conducting wire (105) and in wire connection cavity (104)
The embedded capping (106) equipped with shell structure of groove body.
5. a kind of process equipment of gear ring blank according to claim 1, it is characterised in that: the plug hole (301)
The inner wall phase sliding sleeve of outer wall and outer mold piece (201) is matched, and core model (3) is equal with the quantity of outer die casing (2) and position is opposite
It answers.
6. a kind of a kind of processing technology of gear ring blank as described in claim 1-5 any one, which is characterized in that this product
Processing flow comprise the steps of:
Step 1: stock is matched by gear ring cast raw material；
Step 2: mold prepares, and the mold parts of gear ring blank casting is cleaned out, and in the inner wall of outer mold piece, mould
Cavity inner wall, plug hole I, deflector hole, tundish and the plug hole II of chamber brush release agent, and by the lower end surface of upper mold segment, in
Then the upper and lower end faces of die forging, the equal spreading glue in upper surface of lower die forging bond upper mold segment, middle mold segment and the splicing of lower mold segment
At core model, one layer of refractory seals glue is brushed in the lower end surface of entire outer die casing and the lower end of core model；
Step 3: core model is first concatenated composition in the centre of mold base by sequence from bottom to top by mold overall package
Core model group, then by outside of the outer die casing in core model and the upper end in mold base be concatenated constitute external mold group, then again will
Upper mould cover inserting is in the upper end of core model group and external mold group, to complete the assembling of entire mold；
Step 4: power outlet and external power supply are connected, mold are made to pass through thermally conductive positioning column I and thermally conductive positioning by mold preheating
Column II is preheated, and preheating temperature is 65 DEG C -85 DEG C；
Step 5: the stock in step 1 is launched and is heated into molten iron in smelting furnace, then contains molten iron into pouring by model casting
In note ladle and the tundish along mold upper end pours into mould inside；
Step 6: solidified forming waits for quietly -6 hours 4 hours after casting complete, and the molten iron in die cavity is made to cool and solidify forming casting
Part；
Step 7: die sinking pickup, upper mould cover is successively removed from top to bottom with outer die casing, then by core model upper mold segment, in
Mold segment is successively removed from top to bottom with lower mold segment, and then pouring piece is taken out out of mold；
Step 8: pouring on pouring piece is begun to crop up to saw from pouring piece and be removed, then pick the overlap on pouring piece with burr by finishing
It removes；
Step 9: pouring piece is launched and is heated to 550 DEG C into heating furnace by ageing treatment, then keeps the temperature -8 hours 4 hours, will
Temperature is come out of the stove after being down to 150 DEG C, and cooling rate is 15 DEG C/h -20 DEG C/h, and then completes the preparation of gear ring blank.
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| CN110181380A (en) * | 2019-05-31 | 2019-08-30 | 广东长盈精密技术有限公司 | Polishing jig |
| CN110449553A (en) * | 2019-08-26 | 2019-11-15 | 贵州安吉航空精密铸造有限责任公司 | A kind of joining method that several type core loose piece splicing groups are circularized to type core |
| CN111482599A (en) * | 2020-04-09 | 2020-08-04 | 张秋龙 | Powder metallurgy die and die cleaning and maintaining method |
| CN111702132A (en) * | 2020-06-11 | 2020-09-25 | 江苏威尔森环保设备有限公司 | Preparation process for annular reinforcing rib |
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| CN109434024B (en) | 2020-05-08 |
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