CN208245722U - A kind of enclosed forge die - Google Patents
A kind of enclosed forge die Download PDFInfo
- Publication number
- CN208245722U CN208245722U CN201820613330.1U CN201820613330U CN208245722U CN 208245722 U CN208245722 U CN 208245722U CN 201820613330 U CN201820613330 U CN 201820613330U CN 208245722 U CN208245722 U CN 208245722U
- Authority
- CN
- China
- Prior art keywords
- counterbore
- hole
- punch
- aperture
- bar portion
- Prior art date
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Abstract
The utility model provides a kind of enclosed forge die comprising upper mold, upper mold pressure block, upper punch, lower die, lower die pressure block, low punch and reset spring.Counterbore, upper pilot hole and upper cavity are formed in upper mold.Upper mold pressure block is placed in counterbore, is formed with first through hole in upper mold pressure block.Upper punch includes upper punch bar portion and upper punch root, and upper punch bar portion is sequentially passed through in first through hole and upper pilot hole.Lower counterbore, lower pilot hole and lower mode cavity are formed in lower die.Lower die pressure block is placed in lower counterbore, and the top of lower die pressure block is formed with the second through-hole, and the lower part of lower die pressure block is formed with return counterbore.Low punch includes low punch bar portion and low punch root, and low punch bar portion is sequentially passed through in return counterbore, the second through-hole and lower pilot hole.Spring is set on low punch root, and the outer diameter of reset spring is greater than the aperture of return counterbore.Enclosed forge die provided by the utility model can guarantee smoothly retracting for low punch.
Description
Technical field
The utility model relates to forge die field, in particular to a kind of enclosed forge die.
Background technique
Enclosed forge die is a kind of common forging and molding mold, be can be realized to zero, the automobiles such as constant speed bearing bracket stand
The extrusion forming of part is each formed with die cavity in the upper and lower mould of enclosed forge die, and after completing molding, upper and lower die cavity is encircled into one
A complete, die cavity with predetermined shape.In forging process, the low punch in upper punch and lower die in upper mold squeezes simultaneously
The upper and lower end face of workpiece, so that the material of workpiece flows to realize final extrusion forming in die cavity.
There are following significant drawbacks for enclosed forge die in the prior art: when clamping pressure is excessive or use is excessively frequent
When, low punch is because of the pressure excessive the phenomenon that being upset born, so that low punch and the inner hole hole wall of lower die
Stiction becomes larger, and after forging, low punch is difficult to retract downwards.
Utility model content
In order to solve the above technical problems, the utility model proposes a kind of enclosed forge die,
Its specific technical solution is as follows:
A kind of enclosed forge die comprising:
Upper mold is formed with the upper counterbore inwardly concaved on the upper surface of the upper mold, is connected with below the upper counterbore
Upper pilot hole, the lower end of the upper pilot hole expand outwardly and are formed upper cavity, and the aperture of the upper counterbore, which is greater than on described, leads
To the aperture in hole；
Upper mold pressure block, the upper mold pressure block are placed in the upper counterbore, and is formed in the upper mold pressure block
One through-hole, the first through hole are connected to and are coaxially disposed with the upper pilot hole；
Upper punch, the upper punch include thin upper punch bar portion and are formed in the thicker of upper punch bar portion upper end
Upper punch root, the upper punch bar portion is sequentially passed through from top to bottom in the first through hole and the upper pilot hole, described
The diameter of upper punch root is greater than the aperture of the upper counterbore, when the upper punch moves down, the upper punch bar portion
Lower end is able to enter in the upper cavity；
Lower die is formed with the lower counterbore inwardly concaved on the lower end surface of the lower die, is connected with above the lower counterbore
Lower pilot hole, the upper end of the lower pilot hole expand outwardly and are formed lower mode cavity, the aperture of the lower counterbore be greater than it is described under lead
To the aperture in hole；
Lower die pressure block, the lower die pressure block are placed in the lower counterbore, and the top of the lower die pressure block is formed
There is the second through-hole, return counterbore that is coaxial with second through-hole and being connected to formed at the lower part of the lower die pressure block, and described time
The aperture of position counterbore is greater than the aperture of second through-hole, and second through-hole is connected to and is coaxially disposed with the lower pilot hole；
Low punch, the low punch include thinner low punch bar portion and are formed in the relatively thick of low punch bar portion lower end
Low punch root, the low punch bar portion sequentially passes through from bottom to top in the return counterbore, second through-hole and described
In lower pilot hole, the diameter of the low punch root is less than the aperture of the return counterbore, when the low punch moves up,
The upper end of the low punch bar portion is able to enter in the lower mode cavity, and the upper end of the low punch root is able to enter the return
In counterbore；
Reset spring, the spring are set on the low punch root, and the outer diameter of the reset spring is greater than described return
The aperture of position counterbore.
Further include the spring pocket for being set in the low punch root in a specific embodiment, the spring pocket it is outer
Diameter is less than the aperture of the return counterbore, and the spring is set on the spring pocket.
In a specific embodiment, after the upper mold and lower die completion molding, the upper cavity and the lower die
Chamber is encircled into the extrusion die cavity with predetermined shape.
In a specific embodiment, the diameter of the upper punch bar portion and the aperture of the upper pilot hole match, described
The diameter of low punch bar portion and the aperture of the lower pilot hole match.
Enclosed forge die provided by the utility model adds a reset spring in low punch root, the reset bullet
Spring can oppress downwards low punch, so that low punch can be retracted smoothly after guaranteeing forging and stamping.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, will be needed below to described in embodiment description
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.Wherein:
Fig. 1 is the structural schematic diagram of enclosed forge die provided by the utility model.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1, in a specific embodiment, enclosed forge die provided by the utility model include upper mold 1, on
Molding pressure block 2, upper punch 3, the components such as lower die 4, lower die pressure block 5, low punch 6, spring pocket 7 and reset spring 8.It is specific:
The upper counterbore 11 inwardly concaved is formed on the upper surface of the upper mold 1, the lower section of the upper counterbore 11 is connected with
Upper pilot hole 12, the lower end of the upper pilot hole 12 expand outwardly and are formed upper cavity 13, and the aperture of the upper counterbore 11 is greater than
The aperture of the upper pilot hole 12.The upper counterbore 11 is coaxially disposed with the upper pilot hole 12.
The upper mold pressure block 2 is placed in the upper counterbore 11, in the present embodiment, the outer diameter of the upper mold pressure block 2
It is roughly equal with the aperture of the upper counterbore 11, therefore the upper mold pressure block 2 is interference fitted in the upper counterbore 11.It is described
First through hole is formed in upper mold pressure block 2, the first through hole is connected to and is coaxially disposed with upper about 12 pilot hole.
The upper punch 3 includes thinner upper punch bar portion 31 and is formed in the thicker of 31 upper end of upper punch bar portion
Upper punch root 32, the upper punch bar portion 31 are sequentially passed through from top to bottom in the first through hole and the upper pilot hole 12
Interior, the diameter of the upper punch root 32 is slightly larger than the diameter of the upper counterbore 11.
When the upper punch 3 moves down, the lower end of the upper punch bar portion 31 is able to enter in the upper cavity 13
To squeeze molding workpiece 100 to be extruded from top to bottom.In the present embodiment, the diameter of the upper punch bar portion 31 is slightly less than institute
The aperture of pilot hole 12 is stated, therefore after the lower end of the upper punch bar portion 31 enters upper cavity 13, the upper punch
Gap is substantially not present between bar portion 31 and the hole wall of the upper pilot hole 12, to prevent the material of workpiece in extrusion process
It is flowed into the upper pilot hole 12 from the upper cavity 13.
The lower counterbore 41 inwardly concaved is formed on the lower end surface of the lower die 4, the top of the lower counterbore 41 is connected with
Lower pilot hole 42, the upper end of the lower pilot hole 42 expand outwardly and are formed lower mode cavity 43, and the aperture of the lower counterbore 41 is greater than
The aperture of the lower pilot hole 42.
The lower die pressure block 5 is placed in the lower counterbore 41, in the present embodiment, the outer diameter of the lower die pressure block 5
It is roughly equal with the aperture of the lower counterbore 41, therefore the lower die pressure block 5 is interference fitted in the lower counterbore 41.It is described
The top of lower die pressure block 5 is formed with the second through-hole 52, and the lower part of the lower die pressure block 52 is formed with and second through-hole
52 coaxial and connection return counterbores 51.The aperture of the return counterbore 51 is greater than the aperture of second through-hole 52, and described the
Two through-holes 52 are connected to and are coaxially disposed with lower about 42 pilot hole.
The low punch 6 is including thinner low punch bar portion 61 and is formed in the thicker of 61 lower end of low punch bar portion
Low punch root 62, the low punch bar portion 61 sequentially pass through on downwards in the return counterbore 51, second through-hole 52
And in the lower pilot hole 42.The diameter of the low punch root 62 is less than the aperture of the return counterbore 51.
When the low punch 6 moves up, the upper end of the low punch bar portion 61 is able to enter in the lower mode cavity 43
To squeeze molding workpiece 100 to be extruded from bottom to top.In the present embodiment, the diameter of the low punch bar portion 61 is slightly less than institute
The aperture of lower pilot hole 42 is stated, therefore after the upper end of the low punch bar portion 61 enters lower mode cavity 43, the low punch
Gap is substantially not present between bar portion 61 and the hole wall of the lower pilot hole 42, to prevent the material of workpiece in extrusion process
It is flowed into the lower pilot hole 42 from the lower mode cavity 43.
Please continue to refer to shown in Fig. 1, after the upper mold 1 and the lower die 4 complete molding, the upper cavity 13 and described
Lower mode cavity 43 is encircled into the die cavity to match with the target shape of molding workpiece 100 to be extruded above and below.
The spring pocket 7 is sheathed on the low punch root 62 and can slide up and down along the formed punch root 62, described
The outer diameter of spring pocket 7 is less than the aperture of the return counterbore 51, and the lower end of the spring pocket 7 turns up to form horizontal support portion
71.The reset spring 8 is sheathed on the spring pocket 7 and along flexible, the reset spring 8 along about 7 spring pocket
Outer diameter be greater than the return counterbore 51 aperture.The lower end of the reset spring 8 is supported on the support portion 71, described multiple
The upper end of position spring 8 is then inconsistent with the lower end surface of the lower die pressure block 5.
Shown in continuing to refer to figure 1, the course of work of the enclosed forge die of the utility model approximately as:
Step 1: by molding workpiece to be extruded 100 as in lower mode cavity；
Step 2: control system controls 1 downlink of upper mold, until upper mold 1 and lower die 4 are completed to mold；
Step 3: control system control upper punch 3, low punch 6 separately down, upward workpiece 100 with realize to work
The extrusion forming of part 100.At this point, the top of the low punch bar portion 61 enters in the lower mode cavity, synchronously: the undershoot
Head 62 upper end of root and the upper end of the spring pocket 7 stretch in the return counterbore 51, and the reset spring 8 is then pressed
Contracting；
Step 4: after completing extrusion forming, 1 uplink backhaul of upper mold.Control system control low punch 6, which moves down, to be retracted.
Synchronous, the reset spring 8 generates downward screen resilience, which can oppress downwards the low punch 6, so that
Low punch 6 can obtain it is additional retract power, ensure that low punch 6 can be retracted smoothly.
The description with certain particularity detailed enough has been carried out to the utility model above.It is common in fields
It is to be understood by the skilled artisans that the description in embodiment is only exemplary, without departing from the utility model true spirit and
All changes are made under the premise of range all should belong to the protection scope of the utility model.The utility model is claimed
Range is to be defined by described claims, rather than limited by the foregoing description in embodiment.
Claims (4)
1. a kind of enclosed forge die, characterized in that it comprises:
Upper mold is formed with the upper counterbore inwardly concaved on the upper surface of the upper mold, is connected with and leads below the upper counterbore
Xiang Kong, the lower end of the upper pilot hole expand outwardly and are formed upper cavity, and the aperture of the upper counterbore is greater than the upper pilot hole
Aperture；
Upper mold pressure block, the upper mold pressure block are placed in the upper counterbore, and it is logical that first is formed in the upper mold pressure block
Hole, the first through hole are connected to and are coaxially disposed with the upper pilot hole；
Upper punch, the upper punch include thin upper punch bar portion and the thicker upper punching for being formed in upper punch bar portion upper end
Head root, the upper punch bar portion sequentially pass through the upper punching in the first through hole and the upper pilot hole from top to bottom
The diameter of head root is greater than the aperture of the upper counterbore, when the upper punch moves down, the lower end of the upper punch bar portion
It is able to enter in the upper cavity；
Lower die is formed with the lower counterbore inwardly concaved on the lower end surface of the lower die, is connected with down and leads above the lower counterbore
Xiang Kong, the upper end of the lower pilot hole expand outwardly and are formed lower mode cavity, and the aperture of the lower counterbore is greater than the lower pilot hole
Aperture；
Lower die pressure block, the lower die pressure block are placed in the lower counterbore, and the top of the lower die pressure block is formed with
Return counterbore that is coaxial with second through-hole and being connected to is formed at two through-holes, the lower part of the lower die pressure block, and the return is heavy
The aperture in hole is greater than the aperture of second through-hole, and second through-hole is connected to and is coaxially disposed with the lower pilot hole；
Low punch, the low punch include thinner low punch bar portion and be formed in low punch bar portion lower end it is thicker under
Formed punch root, the low punch bar portion sequentially pass through from bottom to top in the return counterbore, second through-hole and it is described under lead
Into hole, the diameter of the low punch root is less than the aperture of the return counterbore, described when the low punch moves up
The upper end of low punch bar portion is able to enter in the lower mode cavity, and the upper end of the low punch root is able to enter the return counterbore
It is interior；
Reset spring, the spring are set on the low punch root, and the outer diameter of the reset spring is heavy greater than the return
The aperture in hole.
2. enclosed forge die as described in claim 1, which is characterized in that it further includes being set in the low punch root
Spring pocket, the outer diameter of the spring pocket are less than the aperture of the return counterbore, and the spring is set on the spring pocket.
3. enclosed forge die as described in claim 1, which is characterized in that when the upper mold and the lower die complete molding
Afterwards, the upper cavity and the lower mode cavity are encircled into the extrusion die cavity with predetermined shape.
4. enclosed forge die as described in claim 1, which is characterized in that the diameter of the upper punch bar portion with it is described on lead
Match to the aperture in hole, the diameter of the low punch bar portion and the aperture of the lower pilot hole match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820613330.1U CN208245722U (en) | 2018-04-27 | 2018-04-27 | A kind of enclosed forge die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820613330.1U CN208245722U (en) | 2018-04-27 | 2018-04-27 | A kind of enclosed forge die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208245722U true CN208245722U (en) | 2018-12-18 |
Family
ID=64638265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820613330.1U Expired - Fee Related CN208245722U (en) | 2018-04-27 | 2018-04-27 | A kind of enclosed forge die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208245722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421947A (en) * | 2018-04-27 | 2018-08-21 | 江苏大洋精锻有限公司 | A kind of enclosed forge die |
-
2018
- 2018-04-27 CN CN201820613330.1U patent/CN208245722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421947A (en) * | 2018-04-27 | 2018-08-21 | 江苏大洋精锻有限公司 | A kind of enclosed forge die |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20200427 |