CN111922275A - Die for machining middle cylinder piston head forging - Google Patents
Die for machining middle cylinder piston head forging Download PDFInfo
- Publication number
- CN111922275A CN111922275A CN202010538108.1A CN202010538108A CN111922275A CN 111922275 A CN111922275 A CN 111922275A CN 202010538108 A CN202010538108 A CN 202010538108A CN 111922275 A CN111922275 A CN 111922275A
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- China
- Prior art keywords
- die
- piston head
- forging
- cylinder piston
- middle cylinder
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- 238000005242 forging Methods 0.000 title claims abstract description 22
- 238000003754 machining Methods 0.000 title claims description 7
- 239000010953 base metal Substances 0.000 abstract description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a die for processing a piston head forging of a middle cylinder, which comprises an upper die and a lower die, wherein the upper die and the lower die are respectively provided with a step surface. The corner part of the step surface and the vertical surface is provided with an arc and a drawing taper of 10 degrees. Forging is carried out through the die, so that the bottom valve hole and the step surface are formed at one time, a positive and negative difference tolerance zone is arranged, the appearance allowance is guaranteed, the base metal is saved, and the design rigidity requirement is guaranteed.
Description
Technical Field
The invention relates to a hydraulic support center pillar oil cylinder machining tool, in particular to a die for machining a center pillar piston head forging.
Background
The hydraulic support middle upright post oil cylinder mainly comprises a large cylinder body, a middle cylinder body and various ring sleeves, wherein the middle cylinder body is internally provided with a piston head because a bottom valve is arranged on a piston head, and the reliability of the piston head directly influences the overall performance of the whole oil cylinder. The hydraulic cylinder is a basic guarantee for the long service life of the hydraulic cylinder.
The general material of well jar piston head is 30CrMnSi, 27SiMn alloy steel, the shape is comparatively complicated, can't forge directly with standard specification round steel, general multi-purpose alloy steel forges, improve its organizational structure and mechanical properties through forging processing, guarantee the continuity of metal fiber tissue, well jar piston head generally increases the excircle structure for the step face, the centre is the bottom valve mounting hole, because the hole diameter is little, can't adopt to forge into straight platform technology, follow-up processingamount is big, need design new forging forming die, satisfy design size and technology processing requirement.
In the prior art:
and round steel is adopted for processing, most of the center needs to be processed and removed, the subsequent processing amount is large, and the economical efficiency is poor.
The forging straight platform is adopted for processing, the size of the bottom valve hole cannot be guaranteed, and the size requirement cannot be met.
And other dies are adopted for processing, so that the die cannot be formed at one time due to the difference, and the cold working difficulty is increased.
Disclosure of Invention
The invention aims to provide a die for processing a medium cylinder piston head forging.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a die for processing a middle cylinder piston head forging, which comprises an upper die and a lower die, wherein the upper die and the lower die are respectively provided with a step surface.
According to the technical scheme provided by the invention, the die for processing the middle cylinder piston head forging provided by the embodiment of the invention is forged through the die, so that the step surface is formed at one time, the positive and negative difference tolerance zone is arranged, the appearance allowance is ensured, and the base metal is saved.
Drawings
FIG. 1 is a schematic structural view of a die for machining a middle cylinder piston head forging according to an embodiment of the invention.
In the figure:
1. an upper die, 2, a lower die, 3 and a step surface.
Detailed Description
The embodiments of the present invention will be described in further detail below. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.
The invention discloses a die for processing a medium cylinder piston head forging, which has a preferred embodiment as shown in figure 1:
the die comprises an upper die and a lower die, wherein step surfaces are respectively arranged on the upper die and the lower die.
And an arc and a drawing taper are arranged at the corner part of the step surface and the vertical surface.
The taper of the drawing die is 10 degrees.
The die for processing the middle cylinder piston head forging piece, disclosed by the invention, realizes one-step forming of the middle cylinder piston head forging piece, reduces the cold processing difficulty, improves the production efficiency, saves the cost and meets the pressure maintaining requirement of a cylinder body on the premise of ensuring the economy.
Aiming at a piston head of a middle cylinder of a hydraulic support oil cylinder, a forging die is designed, forging is carried out through the die, a step surface is formed at one time, a positive and negative difference tolerance zone is arranged, appearance allowance is guaranteed, base metal is saved, and the specific technical key points are as follows:
the process is innovative, the novel forging die structure is adopted, and the forging size is formed in one step.
The step surface is forged into an integral whole, and the design rigidity requirement is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a mould that is used for well cylinder piston head forging processing which characterized in that, includes mould, lower mould, it is equipped with the step face respectively to go up mould and lower mould.
2. The die for machining the medium cylinder piston head forging according to claim 1, wherein the corner portions of the step surface and the vertical surface are provided with circular arcs and drawing conicity.
3. The die for center cylinder piston head forging machining as recited in claim 2, wherein the draft taper is 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010538108.1A CN111922275A (en) | 2020-06-12 | 2020-06-12 | Die for machining middle cylinder piston head forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010538108.1A CN111922275A (en) | 2020-06-12 | 2020-06-12 | Die for machining middle cylinder piston head forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111922275A true CN111922275A (en) | 2020-11-13 |
Family
ID=73317594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010538108.1A Pending CN111922275A (en) | 2020-06-12 | 2020-06-12 | Die for machining middle cylinder piston head forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111922275A (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4918967A (en) * | 1987-07-06 | 1990-04-24 | Aida Engineering, Ltd. | Fully enclosed die forging apparatus |
| JPH02118634U (en) * | 1989-03-10 | 1990-09-25 | ||
| JPH09141380A (en) * | 1995-11-22 | 1997-06-03 | Honda Motor Co Ltd | Method and device for forging of bevel gear |
| JP2000317569A (en) * | 1999-05-17 | 2000-11-21 | Toto Ltd | Forging method and forging die |
| CN200939494Y (en) * | 2006-08-25 | 2007-08-29 | 宁波江丰电子材料有限公司 | Squeezing die forged die for manufacturing sputtering targets |
| CN101254517A (en) * | 2007-11-22 | 2008-09-03 | 温岭立骅机械有限公司 | Silumin piston contour forging technique and mold |
| CN201693114U (en) * | 2010-05-14 | 2011-01-05 | 湖北巨力锻造有限公司 | Oil cylinder support forging finishing forming mould |
| CN202239441U (en) * | 2011-10-24 | 2012-05-30 | 哈尔滨中飞新技术股份有限公司 | Forging die for isothermal finish die forging |
| CN202861301U (en) * | 2012-09-20 | 2013-04-10 | 芜湖三联锻造有限公司 | Insert type forging die structure |
| CN202861297U (en) * | 2012-08-23 | 2013-04-10 | 宝鼎重工股份有限公司 | Novel mould seat of round inserted forging mould used for hammer revolved body stamp work |
| CN202984555U (en) * | 2012-11-19 | 2013-06-12 | 芜湖三联锻造有限公司 | Piston production mold for friction press |
| CN104108012A (en) * | 2014-07-28 | 2014-10-22 | 中国南方航空工业(集团)有限公司 | Forging method of disc-shaped integrated part and die used for forging method |
| CN204700226U (en) * | 2015-04-27 | 2015-10-14 | 浙江浦江齿轮有限公司 | A kind of closed forging die |
| CN205798302U (en) * | 2016-06-24 | 2016-12-14 | 西安昆鹏锻压科工贸有限责任公司 | Big rustless steel key seat forging mold peculiar to vessel |
| CN207615602U (en) * | 2017-10-18 | 2018-07-17 | 浙江丰诚智能科技有限公司 | Forcing press inlays press-fit mould frame mechanism |
| CN208437591U (en) * | 2018-01-31 | 2019-01-29 | 邓州市良机锻压设备制造有限公司 | A kind of forging and molding mold of ring flange |
| CN208945081U (en) * | 2018-09-29 | 2019-06-07 | 林州重机铸锻有限公司 | Outer step ring set forging mold |
| CN110252925A (en) * | 2019-07-25 | 2019-09-20 | 安徽安簧机械股份有限公司 | Piston head forging mold with annular compound post rod mechanism |
| CN110303111A (en) * | 2019-07-10 | 2019-10-08 | 安徽安簧机械股份有限公司 | A kind of liftout attachment suitable for steel piston automation closed-die forging |
| CN212857582U (en) * | 2020-06-12 | 2021-04-02 | 中煤北京煤矿机械有限责任公司 | Die for machining middle cylinder piston head forging |
-
2020
- 2020-06-12 CN CN202010538108.1A patent/CN111922275A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4918967A (en) * | 1987-07-06 | 1990-04-24 | Aida Engineering, Ltd. | Fully enclosed die forging apparatus |
| JPH02118634U (en) * | 1989-03-10 | 1990-09-25 | ||
| JPH09141380A (en) * | 1995-11-22 | 1997-06-03 | Honda Motor Co Ltd | Method and device for forging of bevel gear |
| JP2000317569A (en) * | 1999-05-17 | 2000-11-21 | Toto Ltd | Forging method and forging die |
| CN200939494Y (en) * | 2006-08-25 | 2007-08-29 | 宁波江丰电子材料有限公司 | Squeezing die forged die for manufacturing sputtering targets |
| CN101254517A (en) * | 2007-11-22 | 2008-09-03 | 温岭立骅机械有限公司 | Silumin piston contour forging technique and mold |
| CN201693114U (en) * | 2010-05-14 | 2011-01-05 | 湖北巨力锻造有限公司 | Oil cylinder support forging finishing forming mould |
| CN202239441U (en) * | 2011-10-24 | 2012-05-30 | 哈尔滨中飞新技术股份有限公司 | Forging die for isothermal finish die forging |
| CN202861297U (en) * | 2012-08-23 | 2013-04-10 | 宝鼎重工股份有限公司 | Novel mould seat of round inserted forging mould used for hammer revolved body stamp work |
| CN202861301U (en) * | 2012-09-20 | 2013-04-10 | 芜湖三联锻造有限公司 | Insert type forging die structure |
| CN202984555U (en) * | 2012-11-19 | 2013-06-12 | 芜湖三联锻造有限公司 | Piston production mold for friction press |
| CN104108012A (en) * | 2014-07-28 | 2014-10-22 | 中国南方航空工业(集团)有限公司 | Forging method of disc-shaped integrated part and die used for forging method |
| CN204700226U (en) * | 2015-04-27 | 2015-10-14 | 浙江浦江齿轮有限公司 | A kind of closed forging die |
| CN205798302U (en) * | 2016-06-24 | 2016-12-14 | 西安昆鹏锻压科工贸有限责任公司 | Big rustless steel key seat forging mold peculiar to vessel |
| CN207615602U (en) * | 2017-10-18 | 2018-07-17 | 浙江丰诚智能科技有限公司 | Forcing press inlays press-fit mould frame mechanism |
| CN208437591U (en) * | 2018-01-31 | 2019-01-29 | 邓州市良机锻压设备制造有限公司 | A kind of forging and molding mold of ring flange |
| CN208945081U (en) * | 2018-09-29 | 2019-06-07 | 林州重机铸锻有限公司 | Outer step ring set forging mold |
| CN110303111A (en) * | 2019-07-10 | 2019-10-08 | 安徽安簧机械股份有限公司 | A kind of liftout attachment suitable for steel piston automation closed-die forging |
| CN110252925A (en) * | 2019-07-25 | 2019-09-20 | 安徽安簧机械股份有限公司 | Piston head forging mold with annular compound post rod mechanism |
| CN212857582U (en) * | 2020-06-12 | 2021-04-02 | 中煤北京煤矿机械有限责任公司 | Die for machining middle cylinder piston head forging |
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