CN206464341U - A kind of cycle pipe mill conic mandrel bar - Google Patents
A kind of cycle pipe mill conic mandrel bar Download PDFInfo
- Publication number
- CN206464341U CN206464341U CN201720155280.2U CN201720155280U CN206464341U CN 206464341 U CN206464341 U CN 206464341U CN 201720155280 U CN201720155280 U CN 201720155280U CN 206464341 U CN206464341 U CN 206464341U
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- Prior art keywords
- groove
- section
- mandrel bar
- pipe
- pipe mill
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- 238000005242 forging Methods 0.000 abstract description 19
- 238000010276 construction Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
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- Forging (AREA)
Abstract
The utility model is related to technical field of engineering components, and in particular to a kind of cycle pipe mill conic mandrel bar, including plug body, and the body includes the gripping section, de- pipeline section and active section set gradually from left to right, and the active section is that taper is 1：800 ~ 1500 truncated cones, the gripping section, de- pipeline section are respectively cylinder, and the diameter of cylinder and the bottom footpath of truncation cylinder are identical, and groove is additionally provided with gripping section, and the groove is used for the feeding mechanism for coordinating pipe mill.Conic mandrel bar of the present utility model, it is simple in construction, it is easy to use, in de- pipe, as long as producing less displacement with hollow forging, it can be achieved with mandrel surface and all depart from waste inside pipe wall, reduce between plug and hollow forging and occur scratch probability, avoid during de- pipe because plug caused by hollow forging interference fit with taking off the problem of pipe is difficult, it is adaptable to the larger product of the production coefficient of expansion such as stainless steel, nickel-base alloy, copper and copper alloy.
Description
Technical field
The utility model is related to technical field of engineering components, and in particular to a kind of cycle pipe mill conic mandrel bar.
Background technology
Cycle Tube Rolling Train is with round billet（Ingot）For raw material, blank heating to after 1150 ~ 1270 DEG C through roll piercing（Or warp
Extend after pressure punching）Hollow billet is made, then by plug（It is preheated to 150 DEG C or so）Hollow billet is penetrated, cycle milling train main body is sent into
Rolled in the interior variable diameters pass being made up of the roll that about a pair are arranged and are rotated against, periodical roll often rotates one
Week, hollow billet just realizes forging rolling, finish rolling, sizing, the de- procedure of pipe four by pass.Every hollow forging passes through some road second periodicities
Rolling is formed, and roll often rotates a circle referred to as one rolling cycle, and the rolling cycle of countless passages is longitudinal one section one by hollow billet edge
It is rolled into the satisfactory hollow forging of physical dimension to section.
Before hollow billet rolling, de- pipe ring is together threaded into plug with hollow billet, takes off pipe ring and is located at hollow billet afterbody, completes rolling
Afterwards, using de- pipe ring as a fulcrum, coordinate feeding mechanism to retract, plug is deviate from out of steel pipe after rolling.
It is over time, waste and in real process, after the completion of rolling, waste inside pipe wall and plug are interference fit
Pipe temperature is gradually reduced and plug temperature is gradually increasing, according to principle of expanding with heat and contracting with cold, and its interference degree can be incrementally increased, when increasing to
Just occur that de- rod is difficult or even the failure of de- rod when to a certain degree.On the other hand, if the tubing thermal coefficient of expansion of production itself
When larger（Such as：Stainless steel, nickel-base alloy, copper and copper alloy）, take off the more aobvious protrusion of rod problem.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art there is provided a kind of cycle pipe mill conic mandrel bar,
It is simple in construction, it is easy to use, it is to avoid because plug takes off caused by being interference fitted with hollow forging, pipe is difficult to ask during de- pipe
Topic.
The purpose of this utility model is achieved through the following technical solutions：
A kind of cycle pipe mill conic mandrel bar, including plug body, the body include what is set gradually from left to right
Gripping section, de- pipeline section and active section, the active section is that taper is 1：800 ~ 1500 truncated cones, the gripping section, de- pipe
Section is respectively cylinder, and the diameter of cylinder and the bottom footpath of truncation cylinder are identical, and groove, the groove are additionally provided with gripping section
Feeding mechanism for coordinating pipe mill.
Further, the gripping section, de- pipeline section and active section integrated setting.
Further, the groove is the annular groove being coaxially disposed with gripping section.
Further, the depth of the groove is 5 ~ 20mm.
Further, also it is uniformly provided with reticulate pattern non-skid thread on the side wall of the groove.
Further, the active section outer surface is also uniformly provided with helical oil groove, and the de- pipeline section outer surface is additionally provided with
Oil dripping groove, the oil dripping groove is connected with helical oil groove.
Further, the oil dripping groove is connected by conduit with helical oil groove.
The beneficial effects of the utility model are：Conic mandrel bar of the present utility model, it is simple in construction, it is easy to use, in de- pipe
When, as long as producing less displacement with hollow forging, it can be achieved with mandrel surface and waste inside pipe wall all depart from, reduce plug and famine
Scratch probability occurs between pipe, it is to avoid during de- pipe because plug that pipe is taken off caused by being interference fitted with hollow forging is difficult
Problem, it is adaptable to the larger product of the production coefficient of expansion such as stainless steel, nickel-base alloy, copper and copper alloy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is working state figure of the present utility model；
In figure, 1- gripping sections, 2- takes off pipeline section, and 3- active sections, 4- grooves, 5- takes off pipe ring, 6- hollow forgings.
Embodiment
The technical solution of the utility model, but protection domain of the present utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.
As depicted in figs. 1 and 2, a kind of cycle pipe mill conic mandrel bar, including plug body, the body is included from a left side
Gripping section 1, de- pipeline section 2 and the active section 3 set gradually to the right, the active section 3 is that taper is 1：800 ~ 1500 truncation circle
Cone, the gripping section 1, de- pipeline section 2 are respectively cylinder, and the diameter of cylinder and the bottom footpath of truncation cylinder are identical, gripping section 1
On be additionally provided with groove 4, the groove 4 is used for the feeding mechanism for coordinating pipe mill.
Specifically, the gripping section 1, de- pipeline section 2 and the integrated setting of active section 3.
Specifically, the groove 4 is the annular groove being coaxially disposed with gripping section 1.
Specifically, the depth of the groove 4 is 5 ~ 20mm.
Preferably, also it is uniformly provided with reticulate pattern non-skid thread on the side wall of the groove 4.
Preferably, the outer surface of active section 3 is also uniformly provided with helical oil groove, and the de- outer surface of pipeline section 2 is additionally provided with
Oil dripping groove, the oil dripping groove is connected with helical oil groove.
Preferably, the oil dripping groove is connected by conduit with helical oil groove.
In use, before the rolling of hollow forging 6, de- pipe ring 5 is together threaded into plug with hollow billet, completes after rolling, by de- pipe ring 5
As a fulcrum, coordinate feeding mechanism to retract, plug is deviate from out of hollow forging 6 after rolling, tapered core of the present utility model
Rod, it is simple in construction, it is easy to use, in de- pipe, as long as producing less displacement with hollow forging 6, it can be achieved with mandrel surface and famine
Pipe 6 inwall all departs from, and reduces between plug and hollow forging 6 and occurs scratch probability, it is to avoid because plug during de- pipe
The problem of pipe is difficult is taken off caused by being interference fitted with hollow forging 6；In a preferred embodiment, simultaneously when plug and hollow forging 6 because
When being interference fitted and leading to not depart from, lubricant is instilled out of de- pipeline section 2 oil dripping groove, lubricant flows into active section through conduit
3 helical oil groove, realizes and is lubricated between plug and hollow forging 6, reduce the frictional force between plug and hollow forging 6, be more easy to plug
Separated with hollow forging 6.
Described above is only preferred embodiment of the present utility model, it should be understood that the utility model is not limited to herein
Disclosed form, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and environment, and
It can be modified in contemplated scope described herein by the technology or knowledge of above-mentioned teaching or association area.And this area
The change and change that personnel are carried out do not depart from spirit and scope of the present utility model, then all should be in right appended by the utility model
It is required that protection domain in.
Claims (7)
1. a kind of cycle pipe mill conic mandrel bar, it is characterised in that including plug body, the body include from left to right according to
The gripping section of secondary setting, de- pipeline section and active section, the active section is that taper is 1：800 ~ 1500 truncated cones, the clamping
Section, de- pipeline section are respectively cylinder, and the diameter of cylinder and the bottom footpath of truncation cylinder are identical, and groove is additionally provided with gripping section,
The groove is used for the feeding mechanism for coordinating pipe mill.
2. a kind of cycle pipe mill conic mandrel bar according to claim 1, it is characterised in that the gripping section, de- pipe
Section and active section integrated setting.
3. a kind of cycle pipe mill conic mandrel bar according to claim 1, it is characterised in that the groove is and clamping
The annular groove that section is coaxially disposed.
4. a kind of cycle pipe mill conic mandrel bar according to claim 1, it is characterised in that the depth of the groove is
5~20mm。
5. a kind of cycle pipe mill conic mandrel bar according to claim 1, it is characterised in that on the side wall of the groove
Also it is uniformly provided with reticulate pattern non-skid thread.
6. a kind of cycle pipe mill conic mandrel bar according to claim 1, it is characterised in that the active section outer surface
Helical oil groove is also uniformly provided with, the de- pipeline section outer surface is additionally provided with oil dripping groove, and the oil dripping groove is connected with helical oil groove.
7. a kind of cycle pipe mill conic mandrel bar according to claim 6, it is characterised in that the oil dripping groove passes through groove
Road is connected with helical oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720155280.2U CN206464341U (en) | 2017-02-21 | 2017-02-21 | A kind of cycle pipe mill conic mandrel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720155280.2U CN206464341U (en) | 2017-02-21 | 2017-02-21 | A kind of cycle pipe mill conic mandrel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206464341U true CN206464341U (en) | 2017-09-05 |
Family
ID=59707749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720155280.2U Active CN206464341U (en) | 2017-02-21 | 2017-02-21 | A kind of cycle pipe mill conic mandrel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206464341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439789A (en) * | 2020-10-30 | 2021-03-05 | 太原理工大学 | Forming method of easy-to-demould core rod and metal composite pipe |
-
2017
- 2017-02-21 CN CN201720155280.2U patent/CN206464341U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439789A (en) * | 2020-10-30 | 2021-03-05 | 太原理工大学 | Forming method of easy-to-demould core rod and metal composite pipe |
| CN112439789B (en) * | 2020-10-30 | 2022-08-12 | 太原理工大学 | Forming method of easy-to-demould core rod and metal composite pipe |
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