CN101837403B - Alignment pressure head - Google Patents
Alignment pressure head Download PDFInfo
- Publication number
- CN101837403B CN101837403B CN 201010112265 CN201010112265A CN101837403B CN 101837403 B CN101837403 B CN 101837403B CN 201010112265 CN201010112265 CN 201010112265 CN 201010112265 A CN201010112265 A CN 201010112265A CN 101837403 B CN101837403 B CN 101837403B
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- China
- Prior art keywords
- groove
- pressure head
- alignment
- radius
- tube
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- 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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- Moulds For Moulding Plastics Or The Like (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an alignment pressure head. The alignment pressure head comprises a pressure head body, wherein a straight surface of the pressure head body comprises grooves of three sizes; the grooves of three sizes are a groove R1, a groove R2 and a groove R3 respectively; the radius of the groove R1 is 2 to 4mm more than that of the groove R2; the radius of the groove R3 is more than that of the groove R2; the groove R3 is crossed with the groove R2 in the shape of a bell mouth; the inner circle of the groove R1 is provided with a hard rubber pad; during the alignment, the pressure head body is in contact with a bent tube to straightly press the tube gradually; because the grooves of the three sizes are all slightly more than the radius of the outer circle of a aligned tube, the tube is closely attached to the groove R1 and the groove R2 provided with the hard rubber pads in an elastic deformation range when the tube becomes deformed due to pressure, so that the contact area of the aligned tube and the pressure head is greatly increased and partial deformation is prevented; and because the pressure head is provided with the groove R3, the tube is not partially damaged by the pressure of two sides of the pressure head during reverse deformation.
Description
Technical field
The present invention relates to a kind of aligning mechanism parts, particularly a kind of alignment pressure head.
Background technology
Circular body needs alignment when bending, and existing aligning mechanism is generally selected the V-type pressure head for use, and the body two ends are propped, and exerts pressure with the V-type pressure head body is occured bending and deformation to reach the alignment purpose in the middle part that body upwarps part.This kind method is widely used in industrial production, but the major defect of this aligning method is: V-type pressure head contact body is by 2 contacts that contact and then transfer two lines to, and contact area is too small, makes many bodys local depressed deformation that produces in alignment process.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the object of the present invention is to provide a kind of alignment pressure head, in alignment process, be converted to the contact of face by the contact of line, contact area is big, has avoided the local deformation of body in alignment process.
In order to achieve the above object, technical scheme of the present invention is achieved in that a kind of alignment pressure head, comprise a pressure head body 1, pressure head body 1 alignment face comprises the groove of three kinds of sizes, the groove of three kinds of sizes is respectively R1 groove, R2 groove and R3 groove, and the R1 groove radius is than the big 2-4 millimeter of R2 groove radius, and the R3 groove radius is greater than the R2 groove radius, and crossing according to bell mouth shape and R2 groove, circle is provided with hard rubber pad 2 in the R1 groove.
The radius of circle ratio is by the big 2.3-5 millimeter of alignment body exradius in the described R1 groove, the radius of circle ratio is by the big 0.3-1 millimeter of alignment body exradius in the R2 groove, radius of circle compares by the big 2-4 millimeter of alignment body exradius in the R3 groove, and intersects according to bell mouth shape and R2 groove.
Because circle is provided with hard rubber pad 2 in the R1 groove of the present invention, body is when alignment, and the part can not deform; Because the groove of three kinds of sizes is all than bigger by alignment body exradius, when body is under pressure distortion, body fits tightly in regime of elastic deformation with R1 groove and R2 groove that hard rubber pad 2 is housed, thereby has increased greatly by the contact area of alignment body and pressure head, has prevented local deformation; Because the present invention is provided with the R3 groove, when reversible deformation, body can not weighed wounded by part, pressure head both sides.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the side view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are described in detail.
With reference to Fig. 1, Fig. 2, a kind of alignment pressure head, comprise a pressure head body 1, pressure head body 1 alignment face comprises the groove of three kinds of sizes, and the groove of three kinds of sizes is respectively R1 groove, R2 groove and R3 groove, the R1 groove radius is than the big 2-4 millimeter of R2 groove radius, the R3 groove radius is greater than the R2 groove radius, and intersects according to bell mouth shape and R2 groove, and circle being provided with hard rubber pad 2 in the R1 groove, body is when alignment, and the part can not deform; The radius of circle ratio is by the big 2.3-5 millimeter of alignment body exradius in the R1 groove, the radius of circle ratio is by the big 0.3-1 millimeter of alignment body exradius in the R2 groove, the radius of circle ratio is by the big 2-4 millimeter of alignment body exradius in the R3 groove, and it is crossing according to bell mouth shape and R2 groove, when body is under pressure distortion, body fits tightly in regime of elastic deformation with R1 groove and R2 groove that hard rubber pad 2 is housed, thereby increased greatly by the contact area of alignment body and pressure head, prevented local deformation, the R3 groove is can not weighed wounded by part, pressure head both sides when preventing the body reversible deformation.
Operation principle of the present invention is: in alignment process, pressure head body 1 contacts with the body of bending, and apply certain power, hard rubber pad 2 extrusions in the R1 groove, when making the hard rubber pad 2 that exceeds the R1 groove, pressure is forced into when identical with the R2 groove radius, the metal part of R2 groove begins to contact with the body of bending, hard rubber pad 2 has born very big compression in distortion at this moment, the compression of having disperseed crooked body middle part to concentrate simultaneously greatly, again because the hardness of hard rubber pad 2 is lower than the hardness of body, therefore, the concentrated compression that is subjected in the middle part of the body is disperseed; Can not cause the local dent at crooked body middle part.Along with pressure further raises, crooked body crooked curvature under the pushing of pressure head body 1 is reducing gradually, the metal part of R2 groove internal diameter is also increasing with the body contact area of bending, the pressure that is pressed in crooked body unit are this moment increases also few, increase along with pressure, body is slowly by straightening, in order to prevent by the body resilience of temporary transient straightening, need pressure head body 1 to continue to press down, make body produce certain reversible deformation, the R3 groove is can not weighed wounded by part, pressure head both sides when preventing the body reversible deformation, when satisfying certain anti-deformation, pressure head body 1 is withdrawn, and body is by alignment.
Claims (1)
1. the alignment pressure head of a circular body, comprise a pressure head body (1), it is characterized in that, pressure head body (1) alignment face comprises the groove of three kinds of sizes, the groove of three kinds of sizes is respectively the R1 groove, R2 groove and R3 groove, the R1 groove radius is than the big 2-4 millimeter of R2 groove radius, the R3 groove radius is greater than the R2 groove radius, and it is crossing according to bell mouth shape and R2 groove, the interior circle of R1 groove is provided with hard rubber pad (2), and the radius of circle ratio is by the big 2.3-5 millimeter of alignment body exradius in the described R1 groove, and the radius of circle ratio is by the big 0.3-1 millimeter of alignment body exradius in the R2 groove, radius of circle compares by the big 2-4 millimeter of alignment body exradius in the R3 groove, and intersects according to bell mouth shape and R2 groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010112265 CN101837403B (en) | 2010-02-10 | 2010-02-10 | Alignment pressure head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010112265 CN101837403B (en) | 2010-02-10 | 2010-02-10 | Alignment pressure head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837403A CN101837403A (en) | 2010-09-22 |
| CN101837403B true CN101837403B (en) | 2011-10-05 |
Family
ID=42741205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010112265 Expired - Fee Related CN101837403B (en) | 2010-02-10 | 2010-02-10 | Alignment pressure head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101837403B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492870B (en) * | 2014-12-30 | 2016-04-20 | 山东泰丰钢业有限公司 | A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect |
| CN112658069B (en) * | 2020-12-04 | 2023-03-10 | 浙江银轮机械股份有限公司 | Muffler pipe shaper, shaping assembly and shaping member |
| CN113894185B (en) * | 2021-11-23 | 2024-05-14 | 成都先进金属材料产业技术研究院股份有限公司 | Straightening method of titanium alloy ribbed pipe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253499A (en) * | 1992-06-11 | 1993-10-19 | Dana Corporation | Method for straightening coupling shafts |
| DE102006010040B3 (en) * | 2006-03-04 | 2007-10-11 | Eisenbau Krämer mbH | straightener |
| CN201279537Y (en) * | 2008-10-22 | 2009-07-29 | 徐州徐工液压件有限公司 | Angle adjustable alignment V-shaped block |
| CN201644626U (en) * | 2010-02-10 | 2010-11-24 | 西安石油大学 | Tube body straightening pressure head |
-
2010
- 2010-02-10 CN CN 201010112265 patent/CN101837403B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101837403A (en) | 2010-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140210 |