CN206215689U - Blind hole spline cold extrusion molding mould - Google Patents
Blind hole spline cold extrusion molding mould Download PDFInfo
- Publication number
- CN206215689U CN206215689U CN201621235851.5U CN201621235851U CN206215689U CN 206215689 U CN206215689 U CN 206215689U CN 201621235851 U CN201621235851 U CN 201621235851U CN 206215689 U CN206215689 U CN 206215689U
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- CN
- China
- Prior art keywords
- pull head
- hole
- die shoe
- upper pull
- clamp
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of blind hole spline cold extrusion molding mould, including upper bolster and die shoe, upper bolster includes connecting plate and upper pull head, upper pull head is arranged on connecting plate towards on the bottom surface of die shoe, it is provided with upper bolster through upper pull head and connecting plate and the upper through hole coaxial with upper pull head, position limiting slide block is provided with upper through hole；Set is equiped with the sliding sleeve being slidably matched with it on upper pull head, and the row bar through upper pull head is provided between sliding sleeve and position limiting slide block, and the chute for being slidably matched with row bar and making row bar be moved along the axis direction of upper pull head is provided with upper pull head；The lower through-hole coaxial with upper through hole is provided with die shoe, lower through-hole inner sleeve is equiped with product backing plate, product backing plate is provided with lower mould inner sleeve towards installation on the top surface of upper bolster, and the lower moulded board for being set with and being provided with and be pressed in for being fixed on die shoe is put in lower mould, lower moulded board is fixedly mounted on die shoe, and the extrusion chamber for placing workpiece blank is formed between product backing plate and lower mould inner sleeve.
Description
Technical field
The utility model belongs to metal extrusion dies technical field, specifically for a kind of blind hole spline is cold extrusion shaped
Mould.
Background technology
Extrusion molding is a kind of advanced manufacturing technology of shaping without stock removal, and it has the advantages that high-quality, efficient, low energy consumption.Square
Shape internal spline is widely used in the mechanized equipments such as automobile, tractor, engineering machinery, is in great demand in actual production.It is existing
Rectangle internal spline typically processed by the way of slotting, although can to a certain extent meet processing request, but exist
The shortcoming that the process-cycle is long during making, production efficiency is low, and metal streamline structure is destroyed, so as to reduce making for product
Use the life-span.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of blind hole spline cold extrusion molding mould, can not only
Meet the machine-shaping requirement of blind hole spline, and high in machining efficiency, formed precision is good, and can completely retain metal streamline knot
Structure, improve product quality and shelf life.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of blind hole spline cold extrusion molding mould, including upper bolster and die shoe, the upper bolster include connecting plate and
Upper pull head, the upper pull head is arranged on the connecting plate towards on the bottom surface of the die shoe, is provided with the upper bolster and run through
The upper pull head and connecting plate and the upper through hole coaxial with the upper pull head, position limiting slide block is provided with the upper through hole；On described
Set is equiped with the sliding sleeve being slidably matched with it on pull head, is provided between the sliding sleeve and the position limiting slide block through the upper pull head
Row bar, and be provided with the upper pull head be slidably matched with the row bar and make the row bar along upper pull head axis direction move
Dynamic chute；
The core rod below the position limiting slide block is provided with the upper through hole, the core rod includes the slippery fellow positioned at upper end
With the spline forming convax mould positioned at lower end, it is described it is foxy be slidably matched with the upper through hole, the spline forming convax mould with it is described
It is provided between slippery fellow between limit shaft ring of the external diameter more than the upper through hole internal diameter, and the limit shaft ring and the slippery fellow and is provided with
Changeover portion of the external diameter less than the upper through hole internal diameter；
The upper pull head annular is laid with positioned at its radial direction and can stretch into the clamp in the upper through hole, described
Clamp is arranged on the lower section of the chute, and the sliding sleeve inwall is provided with the slot to make way coordinated with the clamp, and the clamp
The spring for driving the clamp to be moved radially outward is provided between the upper pull head, and the radical length of the clamp is big
In the upper pull head radial thickness and less than or equal to the upper pull head radial thickness and resigning groove depth sum；
The lower through-hole coaxial with the upper through hole is provided with the die shoe, the lower through-hole inner sleeve is equiped with product pad
Plate, the product backing plate puts suit and sets towards installing on the top surface of the upper bolster to be provided with lower mould inner sleeve, and the lower mould
There is the lower moulded board being pressed in for being fixed on the die shoe, the lower moulded board is fixedly mounted on the die shoe,
The extrusion chamber for placing workpiece blank is formed between the product backing plate and lower mould inner sleeve.
Further, the clamp is provided with spherical end towards one end of the sliding sleeve, and the slot to make way both sides side wall
It is set to inclined inclined-plane.
Further, the side wall of the slot to make way respectively with the bottom land and the interior walls be smooth mistake of the sliding sleeve of the slot to make way
Cross.
Further, the clamp is provided with baffle plate, and annular is laid with bullet corresponding with the baffle plate on the upper pull head
Spring groove, the spring is arranged between the spring groove and the baffle plate.
Further, the lock-screw for locking the row bar position is provided with the position limiting slide block.
Further, the pull-up head are provided with the counterbore coordinated with the limit shaft ring to the bottom surface of the die shoe.
Further, the product backing plate is including the adpting flange with the spacing cooperation of the die shoe and is sleeved on described lower logical
Bushing in hole, and the product backing plate is fixedly mounted on the die shoe by the adpting flange.
The beneficial effects of the utility model are：
Blind hole spline cold extrusion molding mould of the present utility model, when using, the workpiece blank of formation to be extruded is placed
In extrusion chamber, upper bolster is driven to move down, core rod contacts the extrusion forming realized to workpiece blank, its mistake with workpiece blank
Journey is as follows：Core rod is subject to the upward reaction force upward sliding of workpiece blank, and, the now transition of core rod spacing by position limiting slide block
Section is just to clamp；Upper bolster continues downward cold extrusion workpiece blank, and when sliding sleeve is contacted with lower mould inner sleeve, sliding sleeve is subject to upward
Active force, drives sliding sleeve and position limiting slide block to be moved up relative to upper bolster, and then drives clamp to stretch into through hole, until limit
When position collar is contacted with upper pull head, cold extrusion shaped completion；During the demoulding, upper bolster is driven to move up, core rod is subject to workpiece base
Expect the downward active force for applying, but now clamp is stretched into through hole, and the cooperation foxy spacing with clamp of core rod overcomes downwards
Power drive core rod to move up, and then easily core rod can be taken out from workpiece blank, then using being arranged on die shoe
The push rod of lower section is ejected workpiece blank from extrusion chamber by lower through-hole, realizes the technical purpose of the demoulding；
In summary, blind hole spline cold extrusion molding mould of the present utility model, can not only meet adding for blind hole spline
Work forming requirements, and high in machining efficiency, formed precision is good, and can completely retain metal streamline construction, improve product quality
And shelf life.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, the utility model provides as follows
Accompanying drawing is illustrated：
Fig. 1 is the structural representation of the utility model blind hole spline cold extrusion molding mould embodiment；
Fig. 2 is the structural representation of upper mould.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art
The utility model can be better understood from and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As shown in figure 1, being the structural representation of the utility model blind hole spline cold extrusion molding mould embodiment.This implementation
The blind hole spline cold extrusion molding mould of example, including upper bolster 1 and die shoe 16, upper bolster 1 include connecting plate 2 and upper pull head 3,
Upper pull head 3 is arranged on connecting plate 2 towards on the bottom surface of die shoe 16, is provided with through upper pull head 3 and connecting plate 2 simultaneously in upper bolster 1
Position limiting slide block 5 is provided with the upper through hole 4 coaxial with upper pull head 3, upper through hole 4.Set is equiped with and is slidably matched with it on upper pull head 3
Sliding sleeve 6, is provided with the row bar 7 through upper pull head 3, and upper pull head 3 to be provided with to be slided with row bar 7 between sliding sleeve 6 and position limiting slide block 5 and matches somebody with somebody
Merging makes the chute 8 that row bar 7 is moved along the axis direction of upper pull head 3, in this way, linchpin inner slide 5, sliding sleeve 6 and row bar 7 can be together
Moved along the axis of upper pull head 3 as entirety.
The core rod positioned at the lower section of position limiting slide block 5 is provided with upper through hole 4, core rod includes being located at foxy the 9 of upper end and is located at down
The spline forming convax mould 10 at end, foxy 9 are slidably matched with upper through hole 4, and it is big to be provided with external diameter between spline forming convax mould 10 and foxy 9
Mistake of the external diameter less than the internal diameter of upper through hole 4 is provided between the limit shaft ring 11 of the internal diameter of upper through hole 4, and limit shaft ring 11 and foxy 9
Cross section 12.
The annular of upper pull head 3 is laid with positioned at its radial direction and can stretch into the clamp 13 in upper through hole 4, and clamp 13 sets
Put in the lower section of chute 8, the inwall of sliding sleeve 6 is provided with the slot to make way 14 coordinated with clamp 13, and is set between clamp 13 and upper pull head 3
Have a spring 15 being moved radially outward for driving card 13, and clamp 13 radial thickness of the radical length more than upper pull head 3
And less than or equal to the radial thickness of upper pull head 3 and the depth sum of slot to make way 14, i.e., after clamp 13 departs from slot to make way 14, can stretch into
In through hole 4.
The lower through-hole 17 coaxial with upper through hole 4 is provided with die shoe 16, the inner sleeve of lower through-hole 17 is equiped with product backing plate 18, produced
Product backing plate 18 towards install on the top surface of upper bolster 1 be provided with set in lower mould inner sleeve 19, and lower mould inner sleeve 19 be equiped with for by its
Fixation is pressed in the lower moulded board 20 on die shoe 16, and lower moulded board 20 is fixedly mounted on die shoe 16, and product backing plate 18 is with
The extrusion chamber for placing workpiece blank 21 is formed between mould inner sleeve 19.
Further, the clamp 13 of the present embodiment is provided with spherical end 13a towards one end of sliding sleeve 6, and slot to make way 14 two
Side side wall is set to inclined inclined-plane, the side wall of the slot to make way 14 of the present embodiment respectively with the bottom land and sliding sleeve 6 of slot to make way 14 in
Wall is seamlessly transitted, and is easy to drive clamp 13 to be slided along the radial direction of upper pull head 13.
Further, clamp 13 is provided with baffle plate 22, and annular is laid with and the corresponding spring groove of baffle plate 22 on upper pull head 13
23, spring 15 is arranged between spring groove 23 and baffle plate 22, can apply uniform elastic force to clamp 13, prevents clamp 13 with pull-up
There is bite between first 3.
Further, the lock-screw for the position of lock line bar 7 is provided with the position limiting slide block 5 of the present embodiment；The face of upper pull head 3
The counterbore 24 coordinated with limit shaft ring 11 is provided with to the bottom surface of die shoe 16.
Further, product backing plate 18 includes the adpting flange with the spacing cooperation of die shoe 16 and the lining being sleeved in lower through-hole
Cover, and product backing plate is fixedly mounted on die shoe by adpting flange.
The blind hole spline cold extrusion molding mould of the present embodiment, when using, the workpiece blank of formation to be extruded is placed on
In extrusion chamber, upper bolster is driven to move down, core rod contacts the extrusion forming realized to workpiece blank, its process with workpiece blank
It is as follows：Core rod is subject to the upward reaction force upward sliding of workpiece blank, and spacing by position limiting slide block, now the changeover portion of core rod
Just to clamp；Upper bolster continues downward cold extrusion workpiece blank, and when sliding sleeve is contacted with lower mould inner sleeve, sliding sleeve is subject to upward work
Firmly, drive sliding sleeve and position limiting slide block to be moved up relative to upper bolster, and then drive clamp to stretch into through hole, until spacing
When collar is contacted with upper pull head, cold extrusion shaped completion；During the demoulding, upper bolster is driven to move up, core rod is subject to workpiece blank
The downward active force for applying, but now clamp is stretched into through hole, and the cooperation foxy spacing with clamp of core rod overcomes downward
Power drives core rod to move up, and then easily core rod can be taken out from workpiece blank, then using being arranged under die shoe
The push rod of side is ejected workpiece blank from extrusion chamber by lower through-hole, realizes the technical purpose of the demoulding.
In summary, the blind hole spline cold extrusion molding mould of the present embodiment, can not only meet the processing of blind hole spline
Forming requirements, and high in machining efficiency, formed precision is good, and can completely retain metal streamline construction, improve product quality and
Shelf life.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model
Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of the utility model
Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (7)
1. a kind of blind hole spline cold extrusion molding mould, it is characterised in that：Including upper bolster and die shoe, the upper bolster includes
Connecting plate and upper pull head, the upper pull head are arranged on the connecting plate towards on the bottom surface of the die shoe, in the upper bolster
It is provided with through the upper pull head and connecting plate and the upper through hole coaxial with the upper pull head, spacing cunning is provided with the upper through hole
Block；Set is equiped with the sliding sleeve being slidably matched with it on the upper pull head, is provided between the sliding sleeve and the position limiting slide block and run through
It is provided with the row bar of the upper pull head, and the upper pull head and be slidably matched with the row bar and make the row bar along upper pull head
The chute of axis direction movement；
The core rod below the position limiting slide block is provided with the upper through hole, the core rod is included positioned at the slippery fellow of upper end and position
In the spline forming convax mould of lower end, it is described it is foxy be slidably matched with the upper through hole, the spline forming convax mould and the slippery fellow
Between be provided with external diameter more than the upper through hole internal diameter limit shaft ring, and the limit shaft ring and it is described slippery fellow between be provided with external diameter
Less than the changeover portion of the upper through hole internal diameter；
The upper pull head annular is laid with positioned at its radial direction and can stretch into the clamp in the upper through hole, the clamp
The lower section of the chute is arranged on, the sliding sleeve inwall is provided with the slot to make way coordinated with the clamp, and the clamp and institute
The spring being provided between pull head for driving the clamp to be moved radially outward is stated, and the radical length of the clamp is more than institute
State the radial thickness of pull head and less than or equal to the upper pull head radial thickness and resigning groove depth sum；
The lower through-hole coaxial with the upper through hole is provided with the die shoe, the lower through-hole inner sleeve is equiped with product backing plate, institute
State product backing plate towards install on the top surface of the upper bolster be provided with lower mould inner sleeve, and the lower mould put suit be provided with for
Be fixed the lower moulded board being pressed on the die shoe, and the lower moulded board is fixedly mounted on the die shoe, the product
The extrusion chamber for placing workpiece blank is formed between product backing plate and lower mould inner sleeve.
2. blind hole spline cold extrusion molding mould according to claim 1, it is characterised in that：The clamp is towards the cunning
One end of set is provided with spherical end, and the both sides side wall of the slot to make way is set to inclined inclined-plane.
3. blind hole spline cold extrusion molding mould according to claim 2, it is characterised in that：The side wall of the slot to make way point
Not with the interior walls be smooth transition of the bottom land and the sliding sleeve of the slot to make way.
4. the blind hole spline cold extrusion molding mould according to claim any one of 1-3, it is characterised in that：On the clamp
Baffle plate is provided with, annular is laid with spring groove corresponding with the baffle plate on the upper pull head, the spring is arranged on the bullet
Between spring groove and the baffle plate.
5. blind hole spline cold extrusion molding mould according to claim 1, it is characterised in that：It is provided with the position limiting slide block
Lock-screw for locking the row bar position.
6. blind hole spline cold extrusion molding mould according to claim 1, it is characterised in that：The pull-up head are to described
The bottom surface of die shoe is provided with the counterbore coordinated with the limit shaft ring.
7. blind hole spline cold extrusion molding mould according to claim 1, it is characterised in that：The product backing plate include with
The adpting flange of the spacing cooperation of die shoe and the bushing being sleeved in the lower through-hole, and the product backing plate is by described
Adpting flange is fixedly mounted on the die shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621235851.5U CN206215689U (en) | 2016-11-18 | 2016-11-18 | Blind hole spline cold extrusion molding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621235851.5U CN206215689U (en) | 2016-11-18 | 2016-11-18 | Blind hole spline cold extrusion molding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206215689U true CN206215689U (en) | 2017-06-06 |
Family
ID=58789713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621235851.5U Expired - Fee Related CN206215689U (en) | 2016-11-18 | 2016-11-18 | Blind hole spline cold extrusion molding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206215689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845795A (en) * | 2020-12-28 | 2021-05-28 | 浙江格洛博机械科技股份有限公司 | Continuous spline forming equipment for inner hub of gearbox brake |
-
2016
- 2016-11-18 CN CN201621235851.5U patent/CN206215689U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845795A (en) * | 2020-12-28 | 2021-05-28 | 浙江格洛博机械科技股份有限公司 | Continuous spline forming equipment for inner hub of gearbox brake |
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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: 20170606 Termination date: 20171118 |