CN207971366U - Engine piston bar cold upsetting forming die - Google Patents
Engine piston bar cold upsetting forming die Download PDFInfo
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- CN207971366U CN207971366U CN201820382463.2U CN201820382463U CN207971366U CN 207971366 U CN207971366 U CN 207971366U CN 201820382463 U CN201820382463 U CN 201820382463U CN 207971366 U CN207971366 U CN 207971366U
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Abstract
The utility model discloses a kind of engine piston bar cold upsetting forming dies, mold, bar tail molding die, the recessed round molding die of bar tail, head molding die and head, which are arranged, including raw material arranges molding die, wherein, it includes Qie Mo and cutter that raw material, which arranges mold, mould is cut equipped with cylindrical mold cavities and there can be corresponding cutting edge with cutter across the mandril of cylindrical mold cavities, Qie Mo；It includes matched male model and master mold that the recessed round molding die of bar tail molding die, bar tail, head molding die and head, which arrange molding die,.Four die orifices of the cold upsetting forming die of the utility model can be such that each size one-pass molding of piston rod, product concentricity, beating degree, finish etc. settles at one go respectively, stable quality, and the tissue density after extruding is promoted, and performance is more preferable.
Description
Technical field
The utility model is related to technical field of mold more particularly to a kind of engine piston bar cold upsetting forming dies.
Background technology
Engine piston bar be supporting piston acting connecting component, be one movement frequently, technology require high movement
Component, the quality of processing quality directly affect the life and reliability of entire product.Piston rod processing request is high, and surface is thick
Rugosity requires to be Ra0.4~0.8 μm, requires concentricity, wearability stringent.The essential characteristic of piston rod is slender shaft turning,
Its difficulty of processing is big, perplexs processing staff always.
Current common processing method is to use CNC Vehicle Processings, and using bar steel as raw material, CNC turning needs secondary operation
It can complete, there are the lathe tool trace equidimension tolerance of head surface smoothness, end face run-out, concentricity, Vehicle Processing is unstable
The shortcomings that, and efficiency is low, bar steel usage amount is big, of high cost, is also easy to produce defective products, and scrappage is high.
In view of the above shortcomings, the designer, is actively subject to research and innovation, it is cold to found a kind of engine piston bar
Upsetting molding die makes it with more the utility value in industry.
Utility model content
The purpose of this utility model is that propose a kind of engine piston bar cold upsetting forming die, can cold-heading molding set out
Motivation piston rod is not necessarily to secondary operation, and any surface finish, concentricity are higher.
For this purpose, the utility model uses following technical scheme：
A kind of engine piston bar cold upsetting forming die, including raw material arrange mold, bar tail molding die, the recessed circle of bar tail at
Pattern tool, head molding die and head arrange molding die, wherein
It includes Qie Mo and cutter that the raw material, which arranges mold, and the mould of cutting is equipped with cylindrical mold cavities and can pass through the circle
The mandril of cylindricality die cavity, the mould of cutting have corresponding cutting edge with cutter；
The bar tail molding die, the recessed round molding die of the bar tail, the head molding die and the head arrange
Molding die includes matched male model and master mold.
Further, the male model of the bar tail molding die and the master mold are respectively that the first male model and first are female
Mould, wherein
First master mold be equipped with bar tail fillet shaping mold cavity, can pass through the bar tail fillet shaping mold cavity first after
Rush stick；
Before first male model is equipped with the first pediment stick and described first that can extend into the bar tail fillet shaping mold cavity
Rush the first cushion block of stick connection.
Further, the male model of the recessed round molding die of the bar tail and the master mold are respectively the second male model and second
Master mold, wherein
Second master mold is equipped with the internal model with cavity, the internal model cushion block of the support internal model and can pass through described
Internal model cushion block and pierce into the internal model cavity the second backlash stick, the second backlash stick towards the end of the internal model be it is convex
Circle；
Second male model is equipped with the second pediment stick of the cavity that can extend into the internal model, connects with second pediment stick
The second cushion block connect.
Further, there are two die springs, two mold bullets for connection between the internal model and the internal model cushion block
Spring is with the internal model and the center line symmetrical setting of the internal model cushion block.
Further, the male model of the head molding die and the master mold are respectively that third male model and third are female
Mould, wherein
The third male model is equipped with the male die core with cavity；
The third backlash stick that the third master mold is equipped with the first installation cavity, can pass through first installation cavity, described the
The end that three backlash sticks penetrate first installation cavity is dome, and the first bullet is arranged on the other end of the third backlash stick
Spring, the third master mold are equipped with the first groove for keeping out first spring.
Further, it is respectively the 4th male model and the 4th that the head, which arranges the male model of molding die and the master mold,
Master mold, wherein
The 4th backlash stick that 4th master mold is equipped with the second installation cavity, can pass through second installation cavity, described the
The end of two installation cavitys is equipped with wolfram steel piece mould, and the end that the 4th backlash stick penetrates second installation cavity is dome, described
Second spring is arranged on the other end of 4th backlash stick, the 4th master mold is equipped with and keeps out the second of the second spring
Groove；
4th male model is equipped with and can extend into the third pediment stick of the wolfram steel piece mould, connect with the third pediment stick
Third cushion block.
The beneficial effects of the utility model are：Four die orifices of cold upsetting forming die can make each size one of piston rod respectively
Secondary molding, product concentricity, beating degree, finish etc. settle at one go, stable quality, and the tissue density after extruding is promoted, and use
Performance is more preferable.
Description of the drawings
Fig. 1 is the structural representation for the engine piston bar cold upsetting forming die that specific embodiment of the present invention provides
Figure.
In figure：10- bar tail molding dies, the first male models of 11-, the first master molds of 12-, 13- bar tail fillet shaping mold cavities, 14-
First backlash stick, the first pediment sticks of 15-, the first cushion blocks of 16-, the recessed round molding die of 20- bar tails, the second male models of 21-, 22- second
Master mold, 23- internal models, 24- internal model cushion blocks, 25- the second backlash sticks, the second pediment sticks of 26-, the second cushion blocks of 27-, 28- die springs,
30- head molding dies, the first male models of 31-, 32- third master molds, 33- male die cores, the first installation cavitys of 34-, 35- third backlash
Stick, the first springs of 36-, the first grooves of 37-, 40- heads arrange molding die, the 4th male models of 41-, the 4th master molds of 42-, 43- the
Two installation cavitys, the 4th backlash sticks of 44-, 45- wolfram steel piece moulds, 46- second springs, the second grooves of 47-, 48- third pediment sticks, 49-
Third cushion block, 50- raw materials arrange mold, and 51- cuts mould, 52- cutters, 53- mandrils.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, the engine piston bar cold upsetting forming die of the utility model, which includes raw material, arranges mold 50, bar tail
The recessed round molding die 20 of molding die 10, bar tail, head molding die 30 and head arrange molding die 40, wherein raw material is whole
Reason mold 50 includes cutting mould 51 and cutter 52, cuts mould 51 and is equipped with cylindrical mold cavities and can pass through the mandril 53 of cylindrical mold cavities,
Cut mould 51 has corresponding cutting edge with cutter 52；The recessed round molding die 20 of bar tail molding die 10, bar tail, head molding die
30 and head arrange molding die 40 include matched male model and master mold.It cuts mould 51 and raw metal is cut into institute with cutter 52
The cylinder of length, the recessed round molding die 20 of bar tail molding die 10, bar tail, head molding die 30 and head is needed to arrange shaping mould
Cylinder cold-heading molding is gone out required shape by tool 40 successively.
Specifically, the male model and master mold of bar tail molding die 10 are respectively the first male model 11 and the first master mold 12, wherein the
The first backlash stick 14 that one master mold 12 is equipped with bar tail fillet shaping mold cavity 13, can pass through bar tail fillet shaping mold cavity 13；First
The first pad that male model 11 is equipped with and can extend into the first pediment stick 15 of bar tail fillet shaping mold cavity 13, connect with the first pediment stick 15
Block 16.The tail portion of cylinder is carried out cold-heading molding by bar tail molding die 10, and it is 1.5mm's so that the tail portion periphery of cylinder is formed radius
Fillet.
The male model and master mold of the recessed round molding die of bar tail 20 are respectively the second male model 21 and the second master mold 22, wherein second
Master mold 22 is equipped with the internal model cushion block 24 of the internal model 23, support internal mould 23 with cavity and can pass through internal model cushion block 24 and pierce into
Second backlash stick 25 of the cavity of internal model 23, the second backlash stick 25 towards the end of internal model 23 be dome；Second male model 21 is equipped with
The second pediment stick 26 that can extend into the cavity of internal model 23, the second cushion block 27 being connect with the second pediment stick 26.In order to ensure
Two backlash sticks 25 keep constant the impact force of cylinder, there are two the utility model connects between internal model 23 and internal model cushion block 24
Die springs 28, two die springs 28 are with internal model 23 and the center line symmetrical setting of internal model cushion block 24.The recessed round shaping mould of bar tail
The tail portion of cylinder is carried out cold-heading molding by tool 20, and the tail portion of cylinder is made to form the recess that radius is 6mm.
The male model and master mold of head molding die 30 are respectively third male model 31 and third master mold 32, wherein third male model
31 are equipped with the male die core 33 with cavity；Third master mold 32 is equipped with the first installation cavity 34, can pass through the of the first installation cavity 34
Three backlash sticks 35, third backlash stick 35 penetrate the end of the first installation cavity 34 for dome, on the other end of third backlash stick 35
It is arranged with the first spring 36, third master mold 32 is equipped with the first groove 37 for keeping out the first spring 36.The effect of first spring 36
It is constant to the impact force of cylinder to be still to maintain third backlash stick 35.Head molding die 30 by the head of cylinder carry out cold-heading at
Type makes the head of cylinder form the oval head that short radius is 2.5mm, long a diameter of 18.8mm and thickness are 5.6mm, oval head with
Changeover portion wide at the top and narrow at the bottom is formed between the straight section of cylinder.
It is respectively the 4th male model 41 and the 4th master mold 42 that head, which arranges the male model of molding die 40 and master mold, wherein the 4th
The 4th backlash stick 44 that master mold 42 is equipped with the second installation cavity 43, can pass through the second installation cavity 43, the end of the second installation cavity 43
Equipped with wolfram steel piece mould 45, the end that the 4th backlash stick 44 penetrates the second installation cavity 43 is dome, the other end of the 4th backlash stick 44
Second spring 46 is arranged in portion, the 4th master mold 42 is equipped with the second groove 47 for keeping out second spring 46；4th male model 41 is set
There are the third pediment stick 48 that can extend into wolfram steel piece mould 45, the third cushion block 49 being connect with third pediment stick 48.Head is organized into
The oval head of cylinder is carried out cold-heading molding by pattern tool 40, and the head of cylinder is made to form the side that width is 25mm, thickness is 2.0mm
Head, it is 150 ° of taper so that changeover portion is formed cone angle, and it is 0.4 to fall that radius is formed between the lower end of taper and the straight section of cylinder
Angle.
Engine piston bar cold upsetting forming die by after raw metal cold-heading molding, using shaped profile turning cutter cylinder taper
Changeover portion get on the bus and repair the preparation that piston rod can be completed in groove, it is efficient, it is at low cost, and the technique of cold-heading molding can make work
Each size one-pass molding of stopper rod, product concentricity, beating degree, finish etc. settle at one go, stable quality, the tissue after extruding
Density is promoted, and performance is more preferable.
The technical principle of the utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art would not require any inventive effort the other specific implementation modes that can associate the utility model,
These modes are fallen within the scope of protection of the utility model.
Claims (6)
1. a kind of engine piston bar cold upsetting forming die, which is characterized in that including raw material arrange mold, bar tail molding die,
The recessed round molding die of bar tail, head molding die and head arrange molding die, wherein
It includes Qie Mo and cutter that the raw material, which arranges mold, and the mould of cutting is equipped with cylindrical mold cavities and can pass through the cylinder
The mandril of die cavity, the mould of cutting have corresponding cutting edge with cutter；
The bar tail molding die, the recessed round molding die of the bar tail, the head molding die and the head arrange molding
Mold includes matched male model and master mold.
2. engine piston bar cold upsetting forming die according to claim 1, which is characterized in that the bar tail molding die
The male model and the master mold be respectively the first male model and the first master mold, wherein
The first backlash that first master mold is equipped with bar tail fillet shaping mold cavity, can pass through the bar tail fillet shaping mold cavity
Stick；
First male model is equipped with the first pediment stick that can extend into the bar tail fillet shaping mold cavity and first pediment stick
First cushion block of connection.
3. engine piston bar cold upsetting forming die according to claim 1, which is characterized in that the recessed circle molding of bar tail
The male model and the master mold of mold are respectively the second male model and the second master mold, wherein
Second master mold is equipped with the internal model with cavity, the internal model cushion block of the support internal model and can pass through the internal model
Cushion block and pierce into the internal model cavity the second backlash stick, the second backlash stick towards the end of the internal model be dome；
Second male model is equipped with the second pediment stick of the cavity that can extend into the internal model, connect with second pediment stick
Second cushion block.
4. engine piston bar cold upsetting forming die according to claim 3, which is characterized in that the internal model with it is described interior
There are two die springs for connection between die-cushion block, and two die springs are with the internal model and the center line of the internal model cushion block
It is symmetrical arranged.
5. engine piston bar cold upsetting forming die according to claim 1, which is characterized in that the head molding die
The male model and the master mold be respectively third male model and third master mold, wherein
The third male model is equipped with the male die core with cavity；
The third backlash stick that the third master mold is equipped with the first installation cavity, can pass through first installation cavity, after the third
It is dome to rush stick and penetrate the end of first installation cavity, and the first spring is arranged on the other end of the third backlash stick,
The third master mold is equipped with the first groove for keeping out first spring.
6. engine piston bar cold upsetting forming die according to claim 1, which is characterized in that the head arranges molding
The male model and the master mold of mold are respectively the 4th male model and the 4th master mold, wherein
The 4th backlash stick that 4th master mold is equipped with the second installation cavity, can pass through second installation cavity, second peace
The end behaveing affectedly be equipped with wolfram steel piece mould, the 4th backlash stick penetrate second installation cavity end be dome, the described 4th
Second spring is arranged on the other end of backlash stick, the 4th master mold is recessed equipped with keep out the second spring second
Slot；
4th male model is equipped with for can extend into the third pediment stick of the wolfram steel piece mould, being connect with the third pediment stick
Three cushion blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382463.2U CN207971366U (en) | 2018-03-20 | 2018-03-20 | Engine piston bar cold upsetting forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382463.2U CN207971366U (en) | 2018-03-20 | 2018-03-20 | Engine piston bar cold upsetting forming die |
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| Publication Number | Publication Date |
|---|---|
| CN207971366U true CN207971366U (en) | 2018-10-16 |
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ID=63766017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820382463.2U Active CN207971366U (en) | 2018-03-20 | 2018-03-20 | Engine piston bar cold upsetting forming die |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188326A (en) * | 2018-03-20 | 2018-06-22 | 鹏驰五金制品（昆山）有限公司 | Engine piston bar cold upsetting forming die |
-
2018
- 2018-03-20 CN CN201820382463.2U patent/CN207971366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188326A (en) * | 2018-03-20 | 2018-06-22 | 鹏驰五金制品（昆山）有限公司 | Engine piston bar cold upsetting forming die |
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