CN205949518U - Cold extrusion of automobile shock absorber ware cavity piston rod is mould in groups - Google Patents
Cold extrusion of automobile shock absorber ware cavity piston rod is mould in groups Download PDFInfo
- Publication number
- CN205949518U CN205949518U CN201620410289.9U CN201620410289U CN205949518U CN 205949518 U CN205949518 U CN 205949518U CN 201620410289 U CN201620410289 U CN 201620410289U CN 205949518 U CN205949518 U CN 205949518U
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- die
- mould
- internal diameter
- end cap
- extrusion
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- 238000000641 cold extrusion Methods 0.000 title claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 7
- 230000035939 shock Effects 0.000 title abstract 3
- 230000007704 transition Effects 0.000 claims abstract description 21
- 230000004323 axial length Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses a cold extrusion of automobile shock absorber ware cavity piston rod is mould in groups comprises first pressing mould, end cap mould and forming die. Wherein first pressing mould, end cap mould and forming die constitute by cylindrical positioning sinking die and extrusion die, and positioning sinking die's internal diameter homogeneous phase is same, and the internal diameter of extrusion die is less than positioning sinking die's internal diameter. All be provided with garden frustum shape transition die between the extrusion die of first pressing mould and end cap mould and positioning sinking die. Wherein the internal diameter of the extrusion die of end cap mould is less than the internal diameter of the extrusion die of first pressing mould, and the concave mold shaft of transition of end cap mould is greater than the axial length of first pressing mould transition die to length, and forming die's extrusion die internal diameter equals the internal diameter of the extrusion die of end cap mould. Owing to taking the above -mentioned whole mould of cold extrusion integrated into one piece many times, form cavity automobile shock absorber ware piston rod, process more simple and convenient connecting rod and the piston core bar of just can preventing and drop with the body.
Description
Technical field
This utility model is related to a kind of cold extrusion processing group die of automobile absorber hollow piston rod.
Background technology
In prior art, piston lever of reducer for automobile is generally made up of body, piston core bar and connecting rod, above-mentioned each composition
Part is usually solid construction, directly takes solid bar member to carry out machine add mode and forms finished product.Produce for mitigating parts deadweight
Inertia and increase rod member bending strength, hollow piston bar body generally also can be taken to be threaded connection, rivet or weld
The mode such as connect to connect body and the solid piston core bar at two ends or the structure of connecting rod.
The Chinese utility model patent of such as Publication No. CN201539529U, discloses a kind of suspension damper piston
Bar, includes radial direction gusset body, piston core bar and connecting rod including hollow, body inner circle two ends are provided with female thread；Piston
Core bar and connecting rod are respectively arranged with the external screw thread matching with described female thread, and piston core bar and connecting rod are respectively arranged at this
Body two ends, and threaded with body, more preferably, anti-bending strength is good for this piston rod wearability, saves material.
The Chinese invention patent of such as CN101074714A, discloses a kind of piston lever of reducer for automobile, and it is included at heat
The hollow body of the piston rod of the outside cylinder after reason and be connected to the piston core bar at piston bar body two ends and connect spiral shell
Bar, piston core bar and connecting screw rod are friction pressure welding with the connected mode of piston bar body one end.
Hollow and closed at both ends the structure of above-mentioned body is taken up in order of priority the different parts of processing by weldering due to being three
Connect or thread connecting mode is connected as entirety, not only lead to procedure of processing loaded down with trivial details it is impossible to ensure the overall concentricity of piston rod, long
Phase is also easy to risk that is loosening or coming off after using.It is not processed hollow by cold extrusion shaped in prior art
The processing method of piston lever of reducer for automobile and mould.
Content of the invention
This utility model mainly solves existing welding present in prior art or threaded is added respectively by three parts
Work and then lead to is processed loaded down with trivial details it is impossible to ensure that the overall concentricity of piston rod, body and piston core bar and connecting rod pass through screw thread
Or be welded to connect and have such problems as that poor durability and integral bending are poor.
Solution of the present utility model is to provide one kind more can fully mitigate piston lever of reducer for automobile deadweight, processing letter
Just, can guarantee that the concentricity of each part, can be formed global formation automobile absorber hollow piston rod cold extrusion gang mould
Tool, is made up of first compression mould, plug mould and mould, and wherein first compression mould, plug mould and mould are by cylinder
Bodily form positioning female die and Extruding die composition, the internal diameter all same of positioning female die, the internal diameter of Extruding die is less than positioning female die
Internal diameter, is provided with garden taper type transition die between the Extruding die and positioning female die of first compression mould and plug mould, its
The internal diameter of the Extruding die of middle plug mould is less than the internal diameter of the Extruding die of first compression mould, and the transition die of plug mould is axially
Length is more than the axial length of first pressing die transition die, and the Extruding die internal diameter of mould is recessed equal to the extruding of plug mould
The internal diameter of mould.
Carry out cold extrusion just molded in compression mould at the beginning of putting into after hollow cylindrical pole stock bonderizing after fracture, can
To form the pole stock that head external diameter is less than body external diameter and is connected with garden taper type changeover portion, through the piston core bar to pole stock two ends
Inlay after plug with connecting rod, cold extrusion shaped again in plug mould, because the internal diameter of the Extruding die of plug mould is little
In the internal diameter of the Extruding die of first compression mould, the transition die axial length of plug mould is more than first pressing die transition die axially
Length, pole stock changeover portion and head are pressed further by extending, and the internal diameter due to the Extruding die of mould is equal to plug mould
The internal diameter of the Extruding die of tool, final pole stock is extruded formation changeover portion and disappears, and head forms perpendicular steps with body junction
The pole stock of shape, can be formed directly in connecting rod after machine tooling and piston core rod end is closed by plug, during body central portion is
The finished product of empty global formation.Compared with prior art, by above-mentioned processing method and mould, cylindrical whole due to taking
Body hollow pole stock, body central portion is hollow structure, further mitigates piston rod deadweight.Take multiple cold extrusion gang mould
Tool, it is to avoid the machining stress of the junction that one-shot forming cold extrusion is formed, take the setting of multiple truncated cone transition die so that
Cold Extrusion Process is more easy, is obtained in that body external diameter is more than the overall structure of two ends head external diameter.Plug mould is taken to enter
Row carries out cold extrusion again after increasing plug so that piston core bar and connecting rod position form closing solid construction, is prevented from
During use, oils and fatss enter piston rod hollow bulb.
Brief description
Fig. 1 is pipe pole stock.
Fig. 2 is the pipe pole stock course of processing.
Fig. 3 is first compression mould.
Fig. 4 is plug mould.
Fig. 5 is mould.
Fig. 6 is machine addition product.
Specific embodiment
By the following examples, in conjunction with accompanying drawing, the technical solution of the utility model is described as follows：
As shown in figure 1, it is standby after cutting pipe pole stock bonderizing.Cutting length is slightly shorter than finished product piston pole length
Can, such as finished product length is 378mm, then cutting length is 368mm, and cutting length is slightly shorter than finished product piston pole length.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, just compression mould 5 is made up of positioning female die 51 and Extruding die 52, plug mould
6 are made up of positioning female die 61 and Extruding die 62, and mould 7 is made up of positioning female die 71 and Extruding die 72.Above-mentioned positioning
Die and Extruding die are cylindrical, the internal diameter all same of positioning female die, could be arranged to the external diameter with pole stock to be processed
Identical, the internal diameter of Extruding die is less than the internal diameter of positioning female die.Between the Extruding die 51 and positioning female die 52 of first compression mould 5
It is provided with garden taper type transition die 53, between the Extruding die 61 and positioning female die 62 of plug mould 6, be provided with garden frustum
The internal diameter of the Extruding die 62 of shape transition die 63, wherein plug mould 6 is less than the internal diameter of the Extruding die 52 of first compression mould 5,
Transition die 63 axial length of plug mould 6 is more than first compression mould 5 transition die 53 axial length, the extruding of mould 7
Die 72 internal diameter is equal to Extruding die 62 internal diameter of plug mould 6.
As shown in Figure 2 in the course of processing, first, the two ends of pipe pole stock are extruded in first compression mould 5 stretching to be formed
Changeover portion（22、32）And extruded segment（21、31）, because the internal diameter of Extruding die 52 is less than the internal diameter of positioning female die 51, through extruding
Extruded segment afterwards（21、31）Diameter is less than body 1 diameter.Secondly, in the Vacancy of piston core bar 2 and the central part of connecting rod 3
Put after being respectively provided with plug 4, then extrusion stretching changeover portion again in plug mould 6（22、32）And extruded segment（21、31）, by
In the Extruding die 62 of plug mould 6 internal diameter be less than first compression mould 5 Extruding die 52 internal diameter so that extruded segment（21、
31）Diameter reduces further.Transition die 63 axial length due to plug mould 6 is more than first compression mould 5 transition die 53 axle
To length, the frustum of a cone taper of the transition die 63 of plug mould 6 is less than the frustum of a cone taper of first compression mould 5 transition die 53,
Changeover portion（22、32）Further to axially extending, the taper angle of the frustum of a cone of changeover portion diminishes length.Finally, in shaping mould
To changeover portion in tool 7（22、32）Extruded, because mould is not provided with transition die, the Extruding die of mould 7
72 internal diameters are equal to Extruding die 62 internal diameter of plug mould 6 so that the changeover portion of pole stock（22、32）Disappear, a changeover portion part
It is extruded as extruded segment 21, another part is extruded as body 1, the extruded segment 21 after extruding and body 1 form perpendicular steps knot
Structure.Finally, the two ends of the pole stock of extrusion molding are formed after machine tooling with finished product, the body 1 of finished product and the connecting rod as Fig. 6
3 central part is hollow structure, and the hollow position of the central part of piston core bar 2 and connecting rod 3 is solid envelope after plug 4 closing
Close structure.
Claims (1)
1. automobile absorber hollow piston rod cold extrusion group die, is made up of first compression mould, plug mould and mould, its
In just compression mould, plug mould and mould formed by cylindrical positioning female die and Extruding die, positioning female die interior
Footpath all same, the internal diameter of Extruding die is less than the internal diameter of positioning female die, in the Extruding die of first compression mould and plug mould and fixed
It is provided with garden taper type transition die, the wherein internal diameter of the Extruding die of plug mould is less than first compression mould between the die of position
The internal diameter of Extruding die, the transition die axial length of plug mould is more than the axial length of first pressing die transition die, molding
The Extruding die internal diameter of mould is equal to the internal diameter of the Extruding die of plug mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410289.9U CN205949518U (en) | 2016-05-09 | 2016-05-09 | Cold extrusion of automobile shock absorber ware cavity piston rod is mould in groups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410289.9U CN205949518U (en) | 2016-05-09 | 2016-05-09 | Cold extrusion of automobile shock absorber ware cavity piston rod is mould in groups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205949518U true CN205949518U (en) | 2017-02-15 |
Family
ID=57968044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620410289.9U Expired - Fee Related CN205949518U (en) | 2016-05-09 | 2016-05-09 | Cold extrusion of automobile shock absorber ware cavity piston rod is mould in groups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205949518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964748A (en) * | 2017-03-24 | 2017-07-21 | 常州永茂特种紧固件有限公司 | The processing method and its processing tool of piston rod |
-
2016
- 2016-05-09 CN CN201620410289.9U patent/CN205949518U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964748A (en) * | 2017-03-24 | 2017-07-21 | 常州永茂特种紧固件有限公司 | The processing method and its processing tool of piston rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210111 Address after: Mengzhuang Industrial Park, Mengzhuang Town, Shizhong District, Zaozhuang City, Shandong Province 277100 Patentee after: Zaozhuang Quanding Biotechnology Co., Ltd Address before: 402761 No.9, longqingzhi 2nd Road, Qinggang street, Bishan County, Chongqing Patentee before: CHONGQING QIANMAI MACHINERY MANUFACTURING Co.,Ltd. |
|
| 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: 20170215 Termination date: 20210509 |