CN202527555U - Hot-bending accurate formation clamping tool of U-shaped large curvature radius elbow - Google Patents
Hot-bending accurate formation clamping tool of U-shaped large curvature radius elbow Download PDFInfo
- Publication number
- CN202527555U CN202527555U CN2012200482496U CN201220048249U CN202527555U CN 202527555 U CN202527555 U CN 202527555U CN 2012200482496 U CN2012200482496 U CN 2012200482496U CN 201220048249 U CN201220048249 U CN 201220048249U CN 202527555 U CN202527555 U CN 202527555U
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- side form
- die
- clamping
- bend pipe
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- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The utility model discloses a hot-bending accurate formation clamping tool of a U-shaped large curvature radius elbow. The hot-bending accurate formation clamping tool comprises an elbow clamp matched with an intermediate-frequency induction heating pushing machine and an elbow curved surface clamping die. The elbow clamp comprises a clamping arm rod, wherein a lower die is fixedly arranged at one end of the clamping arm rod, an upper die is arranged on the lower die, a clamping locking device is arranged between the lower die and the upper die, semi-circular grooves which are mutually matched are respectively arranged on involution surfaces of the lower die and the upper die, and assembly grooves are respectively arranged in the semi-circular grooves. The elbow curved surface clamping die comprises an inner die and an outer die which are respectively matched with the semi-circular grooves of the lower die and the upper die, wherein convex edges are respectively arranged on the inner die and the outer die and respectively matched with the assembly grooves, and curved surface grooves which are mutually matched are respectively arranged on involution surfaces of the inner die and the outer die. The hot-bending accurate formation clamping tool of the U-shaped large curvature radius elbow is simple in structure. The U-shaped large curvature radius elbow formed by bending is attractive in formation, accurate in dimension, high in working efficiency and capable of meeting using requirements.
Description
Technical field
The utility model relates generally to a kind of bend pipe moulding frock, relates in particular to a kind of U-shaped long-sweep ell hot bending Accurate Shaping clamping tooling.
Background technology
In petrochemical industry industry, the U type big syphon of larger radius of curvature uses very frequent, and described U type big syphon is a kind of 180 ° of bend pipes, and the bend pipe two ends have the straight tube of different length, and bend pipe physical dimension and form tolerance require very high.Because receive the applying working condition restriction, material is common all to be steel alloy.And the bend pipe of steel alloy material, the even moulding process that requires to adopt hot bending system during design.Domestic common bent tube technique method is: adopt Frequency Induction Heating pushing bending machine; To bend the rotatable jig arm of end clamping of straight tube, adopt the Medium frequency induction circle, promote straight tube by push machine and travel forward the straight tube local heat; Under the effect of jig arm, crooked straight tube.This bent pipe forming technology has significant limitation; Can use during at the moulding angle of bend, but when the angle of bend of bend pipe during greater than 90 °, the rotation jig arm becomes the obtuse angle with the straight tube that bends less than 90 ° bend pipe; And along with the continuation of bend pipe angle increases, angle is increasing.Then the radius of curvature of this part bend pipe is increasing, and the bend pipe radius of curvature is out of hand, and the moulding situation can not meet the demands.
The utility model content
The purpose of the utility model is in order to remedy the deficiency of prior art, a kind of U-shaped long-sweep ell hot bending Accurate Shaping clamping tooling to be provided, having solved existing Frequency Induction Heating pushing bending machine; The moulding process limitation is big; When the angle of bend of bend pipe during greater than 90 °, the bend pipe radius of curvature is out of hand, inefficiency; Dimensional accuracy is low, moulding situation problem such as can not meet the demands.
The utility model is realized through following technical scheme:
A kind of U-shaped long-sweep ell hot bending Accurate Shaping clamping tooling; Include the bend pipe anchor clamps and the clamping of bend pipe curved surface that match with the Frequency Induction Heating push machine; It is characterized in that: described bend pipe anchor clamps include the jig arm bar; One end of said jig arm bar is installed with down side form, on the said following side form side form is installed, and is provided with the clamping locking device between said side form down and the last side form; Be respectively equipped with the semi-circular recesses that cooperatively interacts on the involutory surface of said side form down and last side form; Be respectively equipped with fitting recess in the said semi-circular recesses, the clamping of said bend pipe curved surface includes the interior side form and outer side form that matches with the semi-circular recesses of following side form and last side form, is respectively equipped with fin on said interior side form and the outer side form; Said fin cooperates with fitting recess respectively, is respectively equipped with the curved surface groove that cooperatively interacts on the involutory surface of said interior side form and outer side form.
Be distributed with anti-slip tank in the semi-circular recesses of described side form down and last side form.
Clamping of described bend pipe curved surface and bend pipe anchor clamps are used, and when being held steel pipe and being straight tube, adopt the bend pipe anchor clamps; When carrying out that the second time, clamping bent, being held steel pipe is bend pipe, then uses the clamping of bend pipe curved surface; Open the bend pipe anchor clamps this moment; The interior side form of bend pipe curved surface clamping is installed in respectively in the following side form and last side form of bend pipe anchor clamps with outer side form, and the clamping bend pipe bends work then, and the clamping face of this moment is the clamping curved surface of bend pipe curved surface clamping.
The moulding process of the utility model is to adopt Frequency Induction Heating pushing bending machine; Adopt Frequency Induction Heating (cooling) induction coil to the bend pipe local heat, adopt the last side form and the downside die clamp of straight tube special fixture to hold straight tube earlier, promote the straight tube motion by pushing; Carry out bending of first 90 ° of bend pipes of bend pipe; The scale record bend pipe number of degrees by being equipped with on the jig arm bar when bending 90 °, stop to bend.The bend pipe anchor clamps are opened, and load onto the bend pipe special fixture, and the jig arm bar is turned back to the position near 0 ° again, simultaneously with push machine push pedal recession, drive bend pipe slow astern set a distance, and the radius of turn of adjustment jig arm bar clamps on the bend pipe curved surface.Restart Frequency Induction Heating (cooling) device, start the pushing bending machine simultaneously, bend bend pipe; Bend completion up to bend pipe, 180 ° of circular arcs of bend pipe radius of curvature everywhere all equate, after the bend pipe moulding; Press outer arc line setting-out in the bend pipe; With after 180 ° of the bend pipe upsets, outer arc can overlap with the setting-out of previous institute in the bend pipe then, and promptly dimensional accuracy is very high.
The utility model has the advantages that:
The utility model is simple in structure, bends forming U type long-sweep ell, and moulding is attractive in appearance, and size is accurate, and high efficiency has satisfied instructions for use.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of bend pipe anchor clamps.
Fig. 3 is the cutaway view of following side form.
Fig. 4 is the structural representation with the clamping of bend pipe curved surface.
Fig. 5 is that the A-A of Fig. 4 is to cutaway view.
The specific embodiment
Referring to accompanying drawing, a kind of U-shaped long-sweep ell hot bending Accurate Shaping clamping tooling includes the bend pipe anchor clamps and the clamping of bend pipe curved surface that match with Frequency Induction Heating push machine 1; Described bend pipe anchor clamps include jig arm bar 2; Jig arm bar 2 adjustable length can realize that an end of jig arm bar 2 is installed with down side form 4 through the tooth bar 3 that cooperates with it is set in double wall bar 2; On the following side form 4 side form 5 is installed; Be provided with between following side form 4 and the last side form 5 and clamp locking device 6, be respectively equipped with the semi-circular recesses 7,8 that cooperatively interacts on the involutory surface of following side form 4 and last side form 5, be respectively equipped with fitting recess 9 in the semi-circular recesses 7,8; The clamping of said bend pipe curved surface includes interior side form 10 and the outer side form 11 that matches with the semi-circular recesses 7,8 of following side form 4 and last side form 5; Be respectively equipped with fin 15 on interior side form 10 and the outer side form 11, fin 15 cooperates 9 with fitting recess respectively, is respectively equipped with the curved surface groove 12,13 that cooperatively interacts on the involutory surface of said interior side form 10 and outer side form 11; Be distributed with anti-slip tank 14 in the semi-circular recesses 7,8 of described side form 4 down and last side form 5.
Claims (2)
1. U-shaped long-sweep ell hot bending Accurate Shaping clamping tooling; Include the bend pipe anchor clamps and the clamping of bend pipe curved surface that match with the Frequency Induction Heating push machine; It is characterized in that: described bend pipe anchor clamps include the jig arm bar; One end of said jig arm bar is installed with down side form, on the said following side form side form is installed, and is provided with the clamping locking device between said side form down and the last side form; Be respectively equipped with the semi-circular recesses that cooperatively interacts on the involutory surface of said side form down and last side form; Be respectively equipped with fitting recess in the said semi-circular recesses, the clamping of said bend pipe curved surface includes the interior side form and outer side form that matches with the semi-circular recesses of following side form and last side form, is respectively equipped with fin on said interior side form and the outer side form; Said fin cooperates with fitting recess respectively, is respectively equipped with the curved surface groove that cooperatively interacts on the involutory surface of said interior side form and outer side form.
2. a kind of U-shaped long-sweep ell hot bending Accurate Shaping clamping tooling according to claim 1 is characterized in that: be distributed with anti-slip tank in the semi-circular recesses of described side form down and last side form, described jig arm pole length is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200482496U CN202527555U (en) | 2012-02-15 | 2012-02-15 | Hot-bending accurate formation clamping tool of U-shaped large curvature radius elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200482496U CN202527555U (en) | 2012-02-15 | 2012-02-15 | Hot-bending accurate formation clamping tool of U-shaped large curvature radius elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202527555U true CN202527555U (en) | 2012-11-14 |
Family
ID=47128761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200482496U Expired - Fee Related CN202527555U (en) | 2012-02-15 | 2012-02-15 | Hot-bending accurate formation clamping tool of U-shaped large curvature radius elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202527555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714638A (en) * | 2018-06-13 | 2018-10-30 | 大连诺林机械制造有限公司 | 90 ° or more hot-bending bends radius accuracy apparatus are processed in a kind of guarantee |
-
2012
- 2012-02-15 CN CN2012200482496U patent/CN202527555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714638A (en) * | 2018-06-13 | 2018-10-30 | 大连诺林机械制造有限公司 | 90 ° or more hot-bending bends radius accuracy apparatus are processed in a kind of guarantee |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20121114 Termination date: 20200215 |