CN209363563U - A kind of hollow circle tube gear manufacture mold - Google Patents
A kind of hollow circle tube gear manufacture mold Download PDFInfo
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- CN209363563U CN209363563U CN201920044622.2U CN201920044622U CN209363563U CN 209363563 U CN209363563 U CN 209363563U CN 201920044622 U CN201920044622 U CN 201920044622U CN 209363563 U CN209363563 U CN 209363563U
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Abstract
The utility model relates to gear manufacture technical field of mold, specially a kind of hollow circle tube gear manufacture mold, including gear die, gear die includes lower die pedestal, lower die and upper mold, mold core vertically upward is welded in the middle part of the bottom surface of the opened up die cavity of lower die, the bottom surface centre hole of the opened up die cavity of lower die, thimble is inserted with inside centre hole, the upper end of thimble is welded with discoid top, the lower end of four thimbles is welded on the upper surface of top plate simultaneously, the bottom surface of the opened up die cavity of lower die is equipped with disc, have the beneficial effect that the utility model slightly taps top plate using tool, thimble pushes disc to release gear at this time, the bottom for the die cavity that lower die is opened up is equipped with disc, prevent the bottom adhe of gear and die cavity, it is pushed out convenient for molding gear, it demoulds more convenient.
Description
Technical field
The utility model relates to gear manufacture technical field of mold, specially a kind of hollow circle tube gear manufacture mold.
Background technique
Cast gear is good because of its processing performance.The advantages that wearability is high, noise is low and at low cost, obtains in machine industry
To extensive use.
In a kind of casting of hollow circle tube gear, need using gear die cast molding, and at the middle part of gear
When forming cylindrical hollow, then need to form mold core in mould inside, mold core increases gear after cooling and shaping, the difficulty of demoulding
Degree, affects processing efficiency.
Utility model content
The purpose of this utility model is to provide a kind of hollow circle tube gear manufacture molds, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of hollow circle tube gear manufacture mold,
Including gear die, the gear die includes lower die pedestal, lower die and upper mold, and the upper surface of lower die pedestal offers square
The lower die placed cavity of shape, the bottom surface of lower die placed cavity offer the round port penetrated to lower die base bottom, lower die placed cavity
Inner wall be embedded with lower die, the underrun dormant bolt of lower die is fixedly connected with the bottom surface of lower die placed cavity, the lower die
The die cavity of indent is offered among upper surface and among the lower surface of upper mold, is welded in the middle part of the bottom surface of the opened up die cavity of lower die
Mold core vertically upward, the bottom surface of the opened up die cavity of lower die are uniformly provided with four centre holes, are inserted with top inside centre hole
Needle, the upper end of thimble are welded with discoid top, and top is embedded in inside the bottom surface of lower die placed cavity, the lower end of four thimbles
Be welded on the upper surface of top plate simultaneously, the outer wall of thimble lower part is arranged with spring, spring connect lower die bottom surface and top plate it is upper
Surface, the bottom surface for being close to the opened up die cavity of lower die are equipped with disc, and four, the top angle of upper mold passes through bolt and lower die pedestal
Upper surface is fixed, and the upper surface of upper mold offers inlet and exhaust outlet, and inlet and exhaust outlet are connected to upper mold and are opened up
In die cavity.
Preferably, four side walls of the lower die are in close contact with four inner walls of lower die placed cavity, the upper table of lower die
Face and the upper surface of lower die pedestal are in same level.
Preferably, the side wall of the die cavity is tooth form die wall, and disc is gear thin slice identical with die cavity bottom shape.
Preferably, the open upper edges of the opened up die cavity of the lower die offer circular seal groove, under upper mold
Portion is torus, and the lower part cooperation of upper mold is plugged in inside seal groove.
Preferably, the lower surface of the upper mold is welded with two positioning pins vertically downward, and the upper surface of lower die offers
The limit hole matched with two positioning pins.
Compared with prior art, the utility model has the beneficial effects that
1. the utility model slightly taps top plate using tool, thimble pushes disc to release gear at this time, under
The bottom for the die cavity that mould is opened up is equipped with disc, prevents the bottom adhe of gear and die cavity, is pushed out convenient for molding gear, takes off
Mould is more convenient；
2. practical form the forming seal space that gear is collectively formed by the die cavity that lower die and upper mold are opened up, will under
When mould and upper mold are split, it is equally beneficial for the demoulding of gear.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model structure sectional front view；
Fig. 3 is the enlarged drawing in Fig. 2 at A.
In figure: gear die 1, lower die pedestal 2, lower die 3, upper mold 4, lower die placed cavity 5, die cavity 6, mold core 7, disc 8, top
Needle 9, top plate 10, top 11, inlet 12, exhaust outlet 13, positioning pin 14.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to Fig.1 to Fig.3, the utility model provides a kind of technical solution: a kind of hollow circle tube gear manufacture mold,
Including gear die 1, gear die 1 includes lower die pedestal 2, lower die 3 and upper mold 4, referring to figs. 1 and 2, lower die pedestal 2
Upper surface offer the lower die placed cavity 5 of square shape, the bottom surface of lower die placed cavity 5, which offers, to be penetrated to 2 bottom of lower die pedestal
The round port in portion, the inner wall of lower die placed cavity 5 are embedded with lower die 3, the underrun dormant bolt and lower die placed cavity of lower die 3
5 bottom surface is fixedly connected, and dormant bolt penetrates upwards along the plane perpendicular of lower die pedestal 2, and four side walls of lower die 3 are put with lower die
Four inner walls for setting chamber 5 are in close contact, and guarantee that lower die 3 carries out firm fixation, upper surface and the lower die pedestal 2 of lower die 3
Upper surface is in same level.
Referring to figs. 1 and 2, the mould of indent is offered among among the upper surface of the lower die 3 and lower surface of upper mold 4
The bottom surface middle part of chamber 6, the opened up die cavity 6 of lower die 3 is welded with mold core 7 vertically upward, and mold core 7 is in cylindrical body, and lower die 3 is opened up
The bottom surface of die cavity 6, which is opened, is uniformly provided with four centre holes, thimble 9 is inserted with inside centre hole, the upper end of thimble 9 is welded with disk
The top 11 of shape, top 11 are embedded in inside the bottom surface of lower die placed cavity 5, and the lower end of four thimbles 9 is welded on top plate 10 simultaneously
Upper surface, the side wall of top plate 10 and 5 bottom surface of lower die placed cavity open up the outer wall sliding contact of round port, 9 lower part of thimble
Outer wall be arranged with spring, spring connects the bottom surface of lower die 3 and the upper surface of top plate 10, and under the action of the spring, top 11 is tight
The upper port of means of press seals centre hole.
Referring to figs. 1 and 2, the side wall of die cavity 6 is tooth form die wall, and the bottom surface for being close to the opened up die cavity 6 of lower die 3 is equipped with
Disc 8, disc 8 are gear thin slice identical with 6 bottom shape of die cavity, and the effect of disc 8 is easy for molding gear and is pushed out,
The open upper edges of the opened up die cavity 6 of lower die 3 offer circular seal groove, and the lower part of upper mold 4 is torus, and upper mold
4 lower part cooperation is plugged in inside seal groove, and the die cavity 6 opened up to lower die 3 and upper mold 4 forms space and is sealed, upper mold 4
Top be rectangular plate, and the upper surface that four, the top of upper mold 4 angle passes through bolt and lower die pedestal 2 is fixed, upper mold 4
Lower surface is welded with two positioning pins 14 vertically downward, and the upper surface of lower die 3 is offered to be matched with two positioning pins 14
Limit hole, as shown in Figure 1, the asymmetric setting of two positioning pins 14, places arranged in dislocation, the upper surface of upper mold 4 offers feed liquor
Mouth 12 and exhaust outlet 13, inlet 12 and exhaust outlet 13 are connected in the opened up die cavity 6 of upper mold 4, and inlet 12 is for pouring into
Metal liquid, gas is discharged along exhaust outlet 13 when pouring into metal liquid.
Working principle: when utility model works, as shown in Fig. 2, lower die 3 is bolted on 2 institute of lower die pedestal
The inside of the lower die placed cavity 5 opened up, then upper mold 4 and lower die pedestal 2 are fixed by bolt, make 4 institute of lower die 3 and upper mold
The die cavity 6 that opens up carries out the integral closed space of closed, toward inlet 12 at pour into molten metal liquid, in die cavity 6
The gas in portion is discharged along exhaust outlet 13, until the full entire closed die cavity 6 of metal liquid filling, to entire gear die 1
It is cooled down, when being demoulded, the bolt that lower die pedestal 2 is connect with upper mold 4 carries out loose unloading, and 1 side of gear die is put, right
Top plate 10 is slightly tapped using tool, and thimble 9 pushes disc 8 to release gear at this time, is demoulded more convenient.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of hollow circle tube gear manufacture mold, including gear die (1), it is characterised in that: gear die (1) packet
Lower die pedestal (2), lower die (3) and upper mold (4) are included, the upper surface of lower die pedestal (2) offers the lower die placed cavity of square shape
(5), the bottom surface of lower die placed cavity (5) offers the round port penetrated to lower die pedestal (2) bottom, lower die placed cavity (5)
Inner wall is embedded with lower die (3), and the underrun dormant bolt of lower die (3) is fixedly connected with the bottom surface of lower die placed cavity (5), described
The die cavity (6) of indent, lower die (3) opened up mould are offered among the upper surface of lower die (3) and among the lower surface of upper mold (4)
Mold core (7) vertically upward is welded in the middle part of the bottom surface of chamber (6), the bottom surface of lower die (3) opened up die cavity (6), which is opened, is uniformly provided with four
A centre hole is inserted with thimble (9) inside centre hole, and the upper end of thimble (9) is welded with discoid top (11), top
(11) it is embedded in inside the bottom surface of lower die placed cavity (5), the lower end of four thimbles (9) is welded on the upper table of top plate (10) simultaneously
Face, the outer wall of thimble (9) lower part are arranged with spring, and spring connects the bottom surface of lower die (3) and the upper surface of top plate (10), under abutting
The bottom surface of mould (3) opened up die cavity (6) is equipped with disc (8), and four, the top angle of upper mold (4) passes through bolt and lower die pedestal
(2) upper surface is fixed, and the upper surface of upper mold (4) offers inlet (12) and exhaust outlet (13), inlet (12) and exhaust
Mouth (13) is connected in upper mold (4) opened up die cavity (6).
2. a kind of hollow circle tube gear manufacture mold according to claim 1, it is characterised in that: the lower die (3)
Four inner walls of four side walls and lower die placed cavity (5) are in close contact, and the upper surface of lower die (3) is upper with lower die pedestal (2)
Surface is in same level.
3. a kind of hollow circle tube gear manufacture mold according to claim 1, it is characterised in that: the die cavity (6)
Side wall is tooth form die wall, and disc (8) is gear thin slice identical with die cavity (6) bottom shape.
4. a kind of hollow circle tube gear manufacture mold according to claim 1, it is characterised in that: lower die (3) institute
The open upper edges for opening up die cavity (6) offer circular seal groove, and the lower part of upper mold (4) is torus, and upper mold (4)
Lower part cooperation be plugged in inside seal groove.
5. a kind of hollow circle tube gear manufacture mold according to claim 1, it is characterised in that: the upper mold (4)
Lower surface is welded with two positioning pins (14) vertically downward, and the upper surface of lower die (3) offers and two positioning pin (14) phases
The limit hole of cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044622.2U CN209363563U (en) | 2019-01-11 | 2019-01-11 | A kind of hollow circle tube gear manufacture mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044622.2U CN209363563U (en) | 2019-01-11 | 2019-01-11 | A kind of hollow circle tube gear manufacture mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209363563U true CN209363563U (en) | 2019-09-10 |
Family
ID=67825458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920044622.2U Active CN209363563U (en) | 2019-01-11 | 2019-01-11 | A kind of hollow circle tube gear manufacture mold |
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| Country | Link |
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| CN (1) | CN209363563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482599A (en) * | 2020-04-09 | 2020-08-04 | 张秋龙 | Powder metallurgy die and die cleaning and maintaining method |
| WO2022148502A3 (en) * | 2021-07-20 | 2022-08-25 | 中南大学 | Vehicle reduction drive planetary composite gear combination structure and forging mold |
| CN116140550A (en) * | 2023-04-19 | 2023-05-23 | 江苏兴利达齿轮有限公司 | Gear casting molding equipment |
-
2019
- 2019-01-11 CN CN201920044622.2U patent/CN209363563U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482599A (en) * | 2020-04-09 | 2020-08-04 | 张秋龙 | Powder metallurgy die and die cleaning and maintaining method |
| WO2022148502A3 (en) * | 2021-07-20 | 2022-08-25 | 中南大学 | Vehicle reduction drive planetary composite gear combination structure and forging mold |
| CN116140550A (en) * | 2023-04-19 | 2023-05-23 | 江苏兴利达齿轮有限公司 | Gear casting molding equipment |
| CN116140550B (en) * | 2023-04-19 | 2023-06-23 | 江苏兴利达齿轮有限公司 | Gear casting molding equipment |
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