CN208743686U - A kind of helical ring gear mold - Google Patents
A kind of helical ring gear mold Download PDFInfo
- Publication number
- CN208743686U CN208743686U CN201821335509.1U CN201821335509U CN208743686U CN 208743686 U CN208743686 U CN 208743686U CN 201821335509 U CN201821335509 U CN 201821335509U CN 208743686 U CN208743686 U CN 208743686U
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- CN
- China
- Prior art keywords
- molding
- ring gear
- helical ring
- plug
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of helical ring gear molds, including being rushed in molding, helical ring gear green compact, mould in molding, form undershoot and forming core rod, internal inner hole and the outer wall of being equipped with is rushed in the molding equipped with the first groove, it is equipped with the first internal tooth race inside the helical ring gear green compact and outer wall is equipped with the second groove, through-hole is equipped in the molding inside mould, it is equipped with secondary annulus slot inside the molding undershoot and outer wall is equipped with third groove, the forming core rod includes upper plug and lower plug, the upper plug outer wall is equipped with external gear, the forming core rod bottom is equipped with plug gland.When the utility model forming core rod rotating stripping demoulding, first internal tooth race and secondary annulus slot and external gear are intermeshed, convex block limit, so as to drive helical ring gear green compact to move in a straight line upwards, realize that helical ring gear green compact is detached from forming core rod, it is convenient in demoulding quickly, and being capable of the position of groove and inside gear ring on the outside of positioning product.
Description
Technical field
The utility model relates to helical ring gear mould applications, in particular to a kind of helical ring gear mold.
Background technique
This mould program is for shaping a kind of helical ring gear sintered metal product.Due on the outside of gear ring there are four groove,
The forming position relationship between the gear ring of inside, and its position changes with the variation of gear ring height.So on mold design,
Since the positional relationship of this variation causes the positional relationship of groove and inside tooth form on the outside of upper punching that can not determine, it is necessary to upper punching
Inner hole change is round.Punching and undershoot and middle mould must be fixed all on when forming, not be able to rotate, otherwise green compact can not just shape.
Therefore, it is necessary to solve the above problems to invent a kind of helical ring gear mold.
Utility model content
The purpose of this utility model is to provide a kind of helical ring gear molds, by pressing between mould in molding and upper plug
Forming gear processed, mould inner sidewall is equipped with convex block in molding, and upper plug outer wall is equipped with external gear, and punching drives helical ring gear pressure in molding
Base is suppressed downwards, so as to be made inside different height with helical ring gear and the reeded gear of external belt, is in addition closed
When mould and demoulding, when forming core rod rotating stripping demoulding, the first internal tooth race and secondary annulus slot and external gear are intermeshed, convex
Block limit is realized that helical ring gear green compact is detached from forming core rod, is taken off so as to drive helical ring gear green compact to move in a straight line upwards
Mould fast and easy, and can the position of groove and inside gear ring on the outside of positioning product, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of helical ring gear mold, including in molding
Punching, helical ring gear green compact, mould, molding undershoot and forming core rod in molding, punching is internal in the molding is equipped with inner hole and outer wall
Be equipped with the first internal tooth race equipped with the first groove, inside the helical ring gear green compact and outer wall be equipped with the second groove, it is described at
Through-hole is equipped in type inside mould, secondary annulus slot is equipped with inside the molding undershoot and outer wall is equipped with third groove, it is described
Forming core rod includes upper plug and lower plug, and the upper plug outer wall is equipped with external gear, and the forming core rod bottom is equipped with plug
Gland, the plug gland inside are equipped with ball bearing and rotation gasket, and plug gland bottom is equipped with plug pedestal.
Preferably, the helical ring gear green compact is set in molding and rushes bottom, and mould is set to helical ring gear in the molding
Green compact bottom, the molding undershoot are set to mould bottom in molding, and the forming core rod is sheathed on mould and molding undershoot in molding
It is internal.
Preferably, in the molding punching and section be set as T shape, rushed in the molding top side be equipped be connected with inner hole
Logical gas vent, first groove is set as multiple and circular array is uniformly distributed in molding and rushes bottom outer wall.
Preferably, the first internal gear groove top portion is equipped with the perforation that is connected with inner hole, the forming core rod top with
First internal tooth race matches, and second groove is set as multiple and circular array is uniformly distributed in outside helical ring gear green compact
Wall.
Preferably, the first internal tooth race and secondary annulus slot cross-section are set as U-shaped, the external gear end cross-sectional
It is set as isosceles trapezoid, the first internal tooth race and secondary annulus slot are intermeshed with external gear, the third groove
It is set as multiple and circular array is uniformly distributed in molding undershoot outer wall.
Preferably, the via bottoms are equipped with jack, and the molding undershoot and section are set as T shape, the molding undershoot
Top and through-hole activity clamping and bottom end and jack activity are clamped, and mould inner wall surrounding is equipped with multiple in the corresponding molding of the through-hole
Convex block, first groove, the second groove and third groove are corresponding, multiple convex blocks and multiple first grooves, second recessed
Slot and third groove correspond and activity clamping.
Preferably, the lower plug is set to plug bottom, and the upper plug is fixedly connected with lower plug by pin,
The forming core rod and inner hole section are disposed as circle.
Preferably, the lower plug is flexibly connected at the top of plug gland with ball bearing, the rotation gasket setting
In ball bearing bottom, the rotation gasket is set as multilayer, and surface is equipped with helicla flute at the top and bottom of the rotation gasket,
The spiral slot cross-section is set as semicircle.
Preferably, the plug pedestal is equipped with installation through-hole, and plug gland bottom is equipped with opposite with installation through-hole
The mounting hole answered, the installation through-hole outside are equipped with screw, and the plug gland is fixedly connected with plug pedestal by screw.
The technical effect and advantage of the utility model:
1, the utility model is by the compression moulding gear between mould in molding and upper plug, and mould inner sidewall is equipped in molding
Convex block, upper plug outer wall are equipped with external gear, and punching drives helical ring gear green compact to suppress downwards in molding, so as to which different height are made
Degree is internal to have helical ring gear and the reeded gear of external belt, when in addition molding and demoulding, forming core rod rotating stripping demoulding
When, the first internal tooth race and secondary annulus slot and external gear are intermeshed, convex block limit, so as to drive helical ring gear pressure
Base moves in a straight line upwards, realizes that helical ring gear green compact is detached from forming core rod, is convenient in demoulding quickly；
2, recessed by punching, the first groove of helical ring gear green compact and molding undershoot outer wall, the second groove and third in molding
The convex block activity of mould inner wall is clamped in slot and molding, is played positioning and position-limiting action, is facilitated molding and demoulding, and work as forming core
When stick rotates, mould and molding undershoot will not rotate in holding helical ring gear green compact, molding, avoid damage gear product；
3, circle is disposed as by forming core rod and inner hole section, sweeps away axial fortune caused by pressure in molding when compacting
It is dynamic that forming core rod would not be made to generate radial rotating, thus avoid helical ring gear green compact, mould and molding undershoot rotation in molding, from
And on the outside of positioning product groove and inside gear ring position；
4, it is fixedly connected with lower plug by pin by upper plug, is conveniently replaceable the upper plug with external gear, avoids
Gear product precision is influenced using external tooth foot wheel abrasion for a long time, is equipped with ball bearing and rotation gasket in forming core rod bottom, really
It is smooth to protect forming core rod rotation；
5, the mould structure designed by the utility model, so that the helical ring gear of outer side band keyway or other polymorphic structures
Powder metallurgical technique compression moulding can be used, as long as forming green body is through too small amount of turnery processing, so that it may obtain final spiral shell
Revolve gear ring part.
Detailed description of the invention
Fig. 1 is the entirety sectional view of the utility model.
Fig. 2 is the helical ring gear green compact cross-sectional view of the utility model.
Fig. 3 be the utility model molding on rush cross-sectional view.
Fig. 4 is mould cross-sectional view in the molding of the utility model.
Fig. 5 is the molding undershoot cross-sectional view of the utility model.
Fig. 6 is the forming core rod cross-sectional view of the utility model.
Fig. 7 is the inner hole cross-sectional view of the utility model.
Fig. 8 is the through-hole cross-sectional view of the utility model.
Fig. 9 is the secondary annulus slot structure schematic diagram of the utility model.
Figure 10 is the secondary annulus slot and external gear fit structure schematic diagram of the utility model.
Figure 11 is the rotation gasket top view of the utility model.
In figure: punching in 1 molding, 2 helical ring gear green compacts, mould in 3 moldings, 4 form undershoots, 5 forming core rods, plug on 51,
52 lower plugs, 53 external gears, 6 inner holes, 7 first grooves, 8 first internal tooth races, 9 second grooves, 10 through-holes, 11 secondary annulus
Slot, 12 third grooves, 13 plug glands, 14 ball bearings, 15 rotation gaskets, 16 plug pedestals, 17 gas vents, 18 perforation, 19
Jack, 20 convex blocks, 21 helicla flutes, 22 installation through-holes, 23 mounting holes.
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.
Embodiment 1:
A kind of helical ring gear mold according to figure 1, including molding on punching 1, helical ring gear green compact 2, molding in mould 3,
Undershoot 4 and forming core rod 5 are formed, the helical ring gear green compact 2 is set in molding and rushes 1 bottom, and mould 3 is arranged in the molding
In 2 bottom of helical ring gear green compact, the molding undershoot 4 is set to 3 bottom of mould in molding, and the forming core rod 5 is sheathed on molding
Inside middle mould 3 and molding undershoot 4,1 inside is rushed in the molding equipped with inner hole 6 and outer wall and is equipped with the first groove 7, the spiral
It is equipped with the first internal tooth race 8 inside gear ring green compact 2 and outer wall is equipped with the second groove 9, is equipped with and leads to inside mould 3 in the molding
Hole 10, secondary annulus slot 11 is equipped with inside the molding undershoot 4 and outer wall is equipped with third groove 12, the forming core rod 5
Including upper plug 51 and lower plug 52, upper 51 outer wall of plug is equipped with external gear 53, and 5 bottom of forming core rod is equipped with plug
Gland 13, ball bearing 14 and rotation gasket 15 are equipped with inside the plug gland 13, and 13 bottom of plug gland is equipped with core
Stick pedestal 16, the plug pedestal 16 are equipped with installation through-hole 22, and 13 bottom of plug gland is equipped with and 22 phase of installation through-hole
Corresponding mounting hole 23 is equipped with screw outside the installation through-hole 22, and the plug gland 13 and plug pedestal 16 pass through screw
It is fixedly connected.
By in compression moulding gear between mould 3 and upper plug 51 in molding, molding 3 inner sidewall of mould be equipped with convex block 20,
Upper 51 outer wall of plug is equipped with external gear 53, and punching 1 drives helical ring gear green compact 2 to suppress downwards in molding, and molding undershoot 4 is pressed upwards
In addition system molds and de- so as to be made with helical ring gear and the reeded gear of external belt inside different height
When mould, when 5 rotating stripping demoulding of forming core rod, the first internal tooth race 8 and secondary annulus slot 11 and external gear 53 are intermeshed, convex block
20 limits realize demoulding so as to drive helical ring gear green compact 2 and molding undershoot 4 to move in a straight line.
Embodiment 2:
A kind of helical ring gear mold according to Fig.2, is equipped at the top of the first internal tooth race 8 and is connected with inner hole 6
Perforation 18, exhaust when facilitating compression moulding, 5 top of forming core rod matches with the first internal tooth race 8, and described second is recessed
Slot 9 is set as multiple and circular array is uniformly distributed in 2 outer wall of helical ring gear green compact；
A kind of helical ring gear mold according to Fig.3, punching 1 and section are set as T shape in the molding, in the molding
Rush 1 top side and be equipped with the gas vent 17 that is connected with inner hole 6, exhaust when facilitating compression moulding, avoid damage form punching 1 with
And shorten and rush 1 service life in molding, first groove 7 is set as multiple and circular array is uniformly distributed in molding
Rush 1 bottom outer wall；
A kind of helical ring gear mold according to shown in Fig. 4 and Fig. 7-9,10 bottom of through-hole be equipped with jack 19, it is described at
Type undershoot 4 and section are set as T shape, 4 top of molding undershoot and 10 activity clamping of through-hole and 19 activity of bottom end and jack
Clamping, the through-hole 10 correspond to 3 inner wall surrounding of mould in molding and are equipped with multiple convex blocks 20, first groove 7,9 and of the second groove
Third groove 12 is corresponding, and multiple convex blocks 20 are corresponded with multiple first grooves 7, the second groove 9 and third groove 12
And activity clamping, positioning and position-limiting action are played, molding and demoulding are facilitated；
A kind of helical ring gear mold according to figure 6, the lower plug 52 are set to 51 bottom of plug, the upper core
Stick 51 is fixedly connected with lower plug 52 by pin, and the upper plug 51 with external gear 53 is conveniently replaceable, and avoids using for a long time
The abrasion of external gear 53 influences gear product precision, and the forming core rod 5 and 6 section of inner hole are disposed as circle, and when compacting forms
Upper punching 1, which pushes generated be axially moved, would not make forming core rod 5 generate radial rotating；
A kind of helical ring gear mold according to shown in Fig. 5 and Fig. 9-10, the first internal tooth race 8 and secondary annulus slot
11 sections are set as U-shaped, and 53 end cross-sectional of external gear is set as isosceles trapezoid, and 53 corner of external gear is avoided to wear, described
First internal tooth race 8 and secondary annulus slot 11 are intermeshed with external gear 53, can when 5 rotating stripping demoulding of forming core rod
It drives helical ring gear green compact 2 and molding undershoot 4 to move in a straight line, realizes demoulding, the third groove 12 is set as multiple and is in
Annular array is uniformly distributed in molding 4 outer wall of undershoot；
A kind of helical ring gear mold according to shown in Fig. 1 and Figure 11, the lower plug 52 through the top of plug gland 13 with
Ball bearing 14 is flexibly connected, and the rotation gasket 15 is set to 14 bottom of ball bearing, and the rotation gasket 15 is set as more
Layer, the 15 top and bottom surface of rotation gasket are equipped with helicla flute 21, and 21 section of helicla flute is set as semicircle.
Utility model works principle:
Referring to Figure of description 1, in use, first casting is covered in 5 outside of forming core rod, then on the set of outside in molding
Mould 3, punching 1 drives helical ring gear green compact 2 to suppress downwards in molding, is being pressed into casting between mould 3 and upper plug 51 in molding
Type gear, 3 inner sidewall of mould is equipped with convex block 20 in molding, and upper 51 outer wall of plug is equipped with external gear 53, therefore different height can be made
Degree is internal to have helical ring gear and a reeded gear of external belt, when 5 rotating stripping demoulding of forming core rod, 8 He of the first internal tooth race
Secondary annulus slot 11 and external gear 53 are intermeshed, and convex block 20 limits, so as to drive helical ring gear green compact 2 to do upwards
Linear motion realizes that helical ring gear green compact 2 is detached from forming core rod 5；
Referring to Figure of description 7-9, multiple convex blocks 20 and multiple first grooves 7, the second groove 9 and third groove
12 one-to-one correspondence and activity clamping, play positioning and position-limiting action, facilitate molding and demoulding；
Referring to Figure of description 10, the first internal tooth race 8 and 11 section of secondary annulus slot are set as U-shaped, external gear 53
End cross-sectional is set as isosceles trapezoid, and 53 corner of external gear is avoided to wear, the first internal tooth race 8 and secondary annulus slot 11 with
External gear 53 is intermeshed, and when 5 rotating stripping demoulding of forming core rod, is able to drive helical ring gear green compact 2 and molding undershoot 4 does straight line
Demoulding is realized in movement；
Referring to Figure of description 11, by being equipped with ball bearing and rotation gasket in 5 bottom of forming core rod, it is ensured that forming core
Stick 5 rotates smooth.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (9)
1. (1), helical ring gear green compact (2), mould (3), molding undershoot in molding are rushed a kind of helical ring gear mold, including in molding
(4) and forming core rod (5), it is characterised in that: rushed in the molding inside (1) be equipped with inner hole (6) and outer wall to be equipped with first recessed
Slot (7), internal the first internal tooth race (8) and the outer wall of being equipped with of the helical ring gear green compact (2) are described equipped with the second groove (9)
Through-hole (10) are equipped with inside mould (3) in molding, secondary annulus slot (11) is equipped with inside the molding undershoot (4) and outer wall is set
Have third groove (12), the forming core rod (5) includes upper plug (51) and lower plug (52), and upper plug (51) outer wall is set
Have external gear (53), forming core rod (5) bottom is equipped with plug gland (13), and ball is equipped with inside the plug gland (13)
Bearing (14) and rotation gasket (15), plug gland (13) bottom are equipped with plug pedestal (16).
2. a kind of helical ring gear mold according to claim 1, it is characterised in that: helical ring gear green compact (2) setting
In rushing (1) bottom in molding, mould (3) is set to helical ring gear green compact (2) bottom in the molding, and the molding undershoot (4) sets
It is placed in mould (3) bottom in molding, it is internal that the forming core rod (5) is sheathed on mould (3) and molding undershoot (4) in molding.
3. a kind of helical ring gear mold according to claim 2, it is characterised in that: rush (1) in the molding and section is set
It is set to T shape, punching (1) top side is equipped with the gas vent (17) being connected with inner hole (6), first groove in the molding
(7) it is set as multiple and circular array is uniformly distributed in molding and rushes (1) bottom outer wall.
4. a kind of helical ring gear mold according to claim 3, it is characterised in that: at the top of the first internal tooth race (8)
Equipped with the perforation (18) being connected with inner hole (6), forming core rod (5) top matches with the first internal tooth race (8), described
Second groove (9) is set as multiple and circular array is uniformly distributed in helical ring gear green compact (2) outer wall.
5. a kind of helical ring gear mold according to claim 4, it is characterised in that: the first internal tooth race (8) and
Two internal tooth race (11) sections are set as U-shaped, and external gear (53) end cross-sectional is set as isosceles trapezoid, first internal tooth
Race (8) and secondary annulus slot (11) are intermeshed with external gear (53), the third groove (12) be set as it is multiple and
Circular array is uniformly distributed in molding undershoot (4) outer wall.
6. a kind of helical ring gear mold according to claim 5, it is characterised in that: through-hole (10) bottom is equipped with jack
(19), the molding undershoot (4) and section are set as T shape, the molding undershoot (4) top and through-hole (10) activity clamping and
Bottom end and jack (19) activity are clamped, and mould (3) inner wall surrounding is equipped with multiple convex blocks (20) in the corresponding molding of the through-hole (10), institute
It is corresponding to state the first groove (7), the second groove (9) and third groove (12), multiple convex blocks (20) and multiple first grooves
(7), the second groove (9) and third groove (12) correspond and activity is clamped.
7. a kind of helical ring gear mold according to claim 6, it is characterised in that: the lower plug (52) is set to core
Stick (51) bottom, the upper plug (51) are fixedly connected with lower plug (52) by pin, the forming core rod (5) and inner hole
(6) section is disposed as circle.
8. a kind of helical ring gear mold according to claim 7, it is characterised in that: the lower plug (52) runs through plug pressure
It is flexibly connected at the top of lid (13) with ball bearing (14), the rotation gasket (15) is set to ball bearing (14) bottom, described
Rotation gasket (15) is set as multilayer, and surface is equipped with helicla flute (21), the spiral shell at the top and bottom of the rotation gasket (15)
Spin slot (21) section is set as semicircle.
9. a kind of helical ring gear mold according to claim 8, it is characterised in that: the plug pedestal (16) is equipped with peace
It fills through-hole (22), plug gland (13) bottom is equipped with mounting hole (23) corresponding with installation through-hole (22), the installation
Screw is equipped with outside through-hole (22), the plug gland (13) is fixedly connected with plug pedestal (16) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335509.1U CN208743686U (en) | 2018-08-20 | 2018-08-20 | A kind of helical ring gear mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335509.1U CN208743686U (en) | 2018-08-20 | 2018-08-20 | A kind of helical ring gear mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208743686U true CN208743686U (en) | 2019-04-16 |
Family
ID=66080671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821335509.1U Expired - Fee Related CN208743686U (en) | 2018-08-20 | 2018-08-20 | A kind of helical ring gear mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208743686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175357A (en) * | 2018-08-20 | 2019-01-11 | 长钰模具(苏州)有限公司 | A kind of helical ring gear mold |
-
2018
- 2018-08-20 CN CN201821335509.1U patent/CN208743686U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175357A (en) * | 2018-08-20 | 2019-01-11 | 长钰模具(苏州)有限公司 | A kind of helical ring gear mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |