CN205732967U - A kind of powder metallurgy forming mould of expansion tightening wheel - Google Patents
A kind of powder metallurgy forming mould of expansion tightening wheel Download PDFInfo
- Publication number
- CN205732967U CN205732967U CN201620396935.0U CN201620396935U CN205732967U CN 205732967 U CN205732967 U CN 205732967U CN 201620396935 U CN201620396935 U CN 201620396935U CN 205732967 U CN205732967 U CN 205732967U
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- plug
- core rod
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- fixed
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Abstract
This utility model provides the powder metallurgy forming mould of a kind of expansion tightening wheel, including press portion and moulding section, press portion is arranged on moulding section top, moulding section includes former, central authorities within former hollow are provided with plug, being formed as molding space between plug and the medial wall of former, molding space is divided into two sections, and the core rod in the middle part of molding space extends downward on plug extension bar；Being close to be provided with bottom punch around the lateral wall of core rod, bottom punch is positioned at the sidewall one high and one low of core rod both sides；Press portion includes bonding press, and the bottom of bonding press is fixed with outer stamping, upper outer stamping be internally provided with interior stamping, be formed as core rod passage between upper outer stamping and upper interior stamping, the central authorities of upper interior stamping are provided with plug passage.The expansion tightening wheel that this mould suppresses has shape and size precision height, hardness advantages of higher.
Description
Technical field
This utility model relates to a kind of mould utilizing PM technique compacting expansion tightening wheel.
Background technology
Expansion tightening wheel is as the important functional part of belt drive system, and after compressing belt, most basic motion is
Rotate.So the wearability of part to be got well, the required precision of endoporus is the highest simultaneously, and Geometrical Tolerance Principle is also
The highest, if dimensional requirement, Geometrical Tolerance Principle, hardness requirement are defective, that will have a strong impact on product
Serviceability.
Utility model content
In order to solve problem present in background technology, this utility model provides the powder smelting of a kind of expansion tightening wheel
Gold mould, the expansion tightening wheel that this mould suppresses has shape and size precision height, hardness advantages of higher.
For reaching above-mentioned purpose, this utility model adopts the following technical scheme that
The powder metallurgy forming mould of a kind of expansion tightening wheel, including press portion and moulding section, pressing part sets up separately
Putting on moulding section top, moulding section includes that former, former have inside hollow, the central authorities within hollow
It is provided with plug, is fixed on bottom plug on plug extension bar, is formed as between plug and the medial wall of former
Type space, is used for filling metallurgical powder in molding space, molding space is divided into two sections, and the internal diameter of epimere is more than
The internal diameter of hypomere, is provided with excessive inclined-plane between epimere and hypomere, the middle part of molding space is provided with core rod,
Core rod extends downward through the bottom of bottom punch pressure pad and is fixed on plug extension bar；
Being close to be provided with bottom punch around the lateral wall of core rod, the sidewall one that bottom punch is positioned at core rod both sides is high by one
Short, the sidewall near plug is higher than the sidewall away from plug；
Press portion includes bonding press, and the bottom of bonding press is fixed with outer stamping, upper outer stamping interior
Portion is provided with interior stamping, is fixed on interior stamping pressure pad bottom upper interior stamping, upper outer stamping and upper interior mould
Being formed as core rod passage between punching, core rod passage is corresponding with core rod, and the central authorities of upper interior stamping are provided with plug and lead to
Road, enters plug passage when plug moves upward, core rod extend in core rod passage along with plug moves upward.
The bottom of described bottom punch is fixed on bottom punch pressure pad.
The beneficial effects of the utility model are: custom-designed powder metallurgy die, and this mould suppresses
Expansion tightening wheel have that shape and size precision is high, hardness advantages of higher.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further illustrated
Fig. 1 is the assembling structural representation of powder metallurgy forming mould described in the utility model；
Detailed description of the invention
This utility model is further described by explanation and detailed description of the invention below in conjunction with the accompanying drawings:
Embodiment 1
As it is shown in figure 1, the powder metallurgy forming mould of a kind of expansion tightening wheel, including press portion and moulding section,
Press portion is arranged on moulding section top, and in the drawings, top is divided into press portion, bottom to be divided into forming part
Point, moulding section is with central axis as boundary, for filling out powder position on the left of central axis, for becoming on the right side of central axis
Type position.
Moulding section includes that former 8, former 8 have inside hollow, and the central authorities within hollow are provided with plug 7,
It is fixed on bottom plug 7 on plug extension bar 11, is formed as molding between the medial wall of plug 7 and former 8 empty
Between 12, molding space 12 is used for filling metallurgical powder, molding space 12 is divided into two sections, the internal diameter of epimere
More than the internal diameter of hypomere, being provided with excessive inclined-plane between epimere and hypomere, the middle part of molding space 12 is provided with
Core rod 9, core rod 9 extends downward through the bottom of bottom punch pressure pad 13 and is fixed on plug extension bar 11.
Being close to be provided with bottom punch 10 around the lateral wall of core rod 9, bottom punch 10 is positioned at the sidewall one of core rod 9 both sides
High one short, near the sidewall of plug 7 higher than the sidewall away from plug 7.The bottom of bottom punch 10 is fixed on down
On stamping pressure pad 13.
Press portion includes that bonding press 1, the bottom of bonding press 1 are fixed with outer stamping 4, upper outer stamping
4 be internally provided with interior stamping 3, be fixed on interior stamping pressure pad 2 bottom upper interior stamping 3, upper external mold
Being formed as core rod passage 6 between punching 4 and upper interior stamping 3, core rod passage 6 is corresponding with core rod 9, upper interior stamping
The central authorities of 3 are provided with plug passage 5, enter plug passage 5 when plug 7 moves upward, and core rod 9 is along with core
Rod 7 moves upward, and extend in core rod passage 6
The main inventive point of the present invention is arrange core rod and be arranged around bottom punch at core rod, and bottom punch is at mould
The Sidewall Height of core both sides is different, for the bottom wheel inclined-plane of molding expansion tightening wheel.
It will be recognized by those skilled in the art, on the premise of without departing from protection scope of the present invention, permissible
Above-mentioned embodiment is carried out various amendment, changes and combine, and think this amendment, change and combine
Within the scope of originality thought.
Claims (2)
1. a powder metallurgy forming mould for expansion tightening wheel, including press portion and moulding section, press portion
It is arranged on moulding section top, it is characterised in that:
Moulding section includes that former, former have inside hollow, and the central authorities within hollow are provided with plug, core
Being fixed on bottom rod on plug extension bar, be formed as molding space between plug and the medial wall of former, molding is empty
Being used for filling metallurgical powder between, molding space is divided into two sections, and the internal diameter of epimere is more than the internal diameter of hypomere, on
Being provided with excessive inclined-plane between section and hypomere, the middle part of molding space is provided with core rod, and core rod extends downward
Through the bottom of bottom punch pressure pad and be fixed on plug extension bar；
Being close to be provided with bottom punch around the lateral wall of core rod, the sidewall one that bottom punch is positioned at core rod both sides is high by one
Short, the sidewall near plug is higher than the sidewall away from plug；
Press portion includes bonding press, and the bottom of bonding press is fixed with outer stamping, upper outer stamping interior
Portion is provided with interior stamping, is fixed on interior stamping pressure pad bottom upper interior stamping, upper outer stamping and upper interior mould
Being formed as core rod passage between punching, core rod passage is corresponding with core rod, and the central authorities of upper interior stamping are provided with plug and lead to
Road, enters plug passage when plug moves upward, core rod extend in core rod passage along with plug moves upward.
The powder metallurgy forming mould of a kind of expansion tightening wheel the most as claimed in claim 1, it is characterised in that institute
The bottom stating bottom punch is fixed on bottom punch pressure pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396935.0U CN205732967U (en) | 2016-05-04 | 2016-05-04 | A kind of powder metallurgy forming mould of expansion tightening wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396935.0U CN205732967U (en) | 2016-05-04 | 2016-05-04 | A kind of powder metallurgy forming mould of expansion tightening wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205732967U true CN205732967U (en) | 2016-11-30 |
Family
ID=57373260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620396935.0U Active CN205732967U (en) | 2016-05-04 | 2016-05-04 | A kind of powder metallurgy forming mould of expansion tightening wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205732967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865765A (en) * | 2019-03-14 | 2019-06-11 | 温州天纳福汽车轴承股份有限公司 | A kind of moulding process of novel expansion tightening wheel |
-
2016
- 2016-05-04 CN CN201620396935.0U patent/CN205732967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865765A (en) * | 2019-03-14 | 2019-06-11 | 温州天纳福汽车轴承股份有限公司 | A kind of moulding process of novel expansion tightening wheel |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |