CN104759501A - Core rod for bending square pipe - Google Patents
Core rod for bending square pipe Download PDFInfo
- Publication number
- CN104759501A CN104759501A CN201410003135.3A CN201410003135A CN104759501A CN 104759501 A CN104759501 A CN 104759501A CN 201410003135 A CN201410003135 A CN 201410003135A CN 104759501 A CN104759501 A CN 104759501A
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- Prior art keywords
- roller
- square tube
- bending
- plug
- recess
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a core rod for bending a square pipe; and when the square pipe is bent to any shape, the bent part is prevented from being fractured, and rollers can smoothly rotate. The core rod for bending the square pipe is characterized in that a circular part and a shaft pin hole are formed at the front end of the core rod for mounting connecting pieces and rollers, wherein a convex part for supporting the bent part of the square pipe and a concave part for forming a recess part are formed at the two sides of each roller; an oil groove is formed in one side surface of each roller; and as lubricating grease in the oil grooves formed in the rollers of the core rod achieves a lubricating effect, when the bending operation is performed, the frictional force between the rollers and between the inner surface of the square pipe and the rollers can be reduced, and the operability and the productivity can be improved.
Description
Technical field
The present invention relates to bending square tube plug, particularly relate to a kind of bending square tube plug, when the square tube of the various uses such as the hanger arm being used for being connected with the luggage-boot lid of automobile is carried out bending with arbitrary shape, part is sunk, thus, prevent sweep from chapping, and, the roller of formation plug is rotated swimmingly.
Background technology
As everyone knows, be connected to the hanger arm of the luggage-boot lid of automobile or form in the parts of various plant equipment, need use bending machine by square tube with both shaped carry out bending after use, during in order to prevent bending square tube, the bend of square tube occurs to sink, place plug in the inside of square tube, carry out buckling work.
As above-mentioned, the phenomenon of sinking in order to square tube when preventing from bending machine, square tube being carried out bending and in the plug used, there is main body by corner bar construction, the conglobate plug of leading section shape, when using this type of plug to be undertaken bending by square tube, carry out operation after the sweep of the rounded portions of plug and square tube need being aimed at exactly, but plug is inserted into the inside of square tube, therefore cannot see the position of plug exactly clearly from outside.
There is shortcomings in the structure of plug, cause cannot aim at the position of the sweep of square tube and the rounded portions of formation plug exactly, thus, there is the phenomenon that the direction be bent by the sweep of square tube occurs to sink, and, square tube cannot be bent to various angle, make the range shorter etc. square tube being applicable to various mechanical equipment component.
In order to solve above-mentioned shortcoming, disclose the plug of plug and the lamination metallic plate be made up of one or two roller, and solve the some drawbacks of above-mentioned plug, but it is sagging that whole sweep is not formed, and sweep generation crack performance.
Further, there is many structural problems in existing plug, that is, form plug roller between, can not lubrication be there is between roller and square tube, therefore, make the lost of life of plug, buckling work etc. cannot be completed smoothly.
Summary of the invention
In order to solve the problem, object of the present invention is for providing a kind of bending square tube plug, depression is formed at certain intervals in square tube, play the effect of reinforcement, prevent the be full of cracks of sweep simultaneously, and, reduce the friction of each several part such as roller and square tube, and buckling work can be carried out smoothly
Further, object of the present invention, for providing a kind of bending square tube plug, also can realize rotating smoothly between roller, therefore, can maintain the longer operating period by running smoothly.
Technical solution of the present invention is:
In order to reach described object, according to bending square tube plug of the present invention, rounded portions and pin hole is formed by front end, in the corner of the internal thread be formed for connecting connecting rod of tossing about rod and configuration 2 on the brace of leading section being formed at described corner rod, the roller configuring 1 in central authorities is formed
Especially, to be of the present inventionly characterized as, described roller forms the protuberance of the sweep of promising supporting square tube and the recess for forming depression in both sides, the side of described roller is formed with oil groove.
Invention effect:
According to the present invention described above, there is following effect: the leading section forming the corner rod of plug forms circle, and, lubricating grease in the oil groove that roller is formed plays lubrication, therefore, when carrying out buckling work, the frictional force between roller and between the inner face of square tube and roller can be reduced, thus, workability and productivity can be improved
Especially, depression is formed at certain intervals at the sweep of square tube, therefore, there is following effect: solve the existing issue that be full of cracks occurs at sweep, and, can durability be improved because of depression, thus, the quality of the product used as various plant equipment such as the hanger arms be connected with the luggage-boot lid of automobile can be improved.
Accompanying drawing explanation
Fig. 1 is the sectional view of the formation illustrated according to plug of the present invention;
Fig. 2 is the view sub-anatomy of the formation of the major part illustrated according to plug of the present invention;
Fig. 3 is the sectional view of the effect illustrated according to plug of the present invention;
Fig. 4 is the sectional view that the state of being sunk at sweep by plug is shown;
Fig. 5 illustrates other sectional views formed according to plug of the present invention;
Fig. 6 is the sectional view of the effect illustrated according to the plug that other are formed of the present invention;
Fig. 7 is the exemplary plot of the bending machine be suitable for according to plug of the present invention.
Reference numeral explanation
1: roller 2: pin hole
3,24: recess 4,25: protuberance
10,11: pivot pin 21: rounded portions
22: pin hole 23: brace
30: depression
Detailed description of the invention
Below, the formation according to bending square tube plug of the present invention is described in detail.
According to bending square tube plug of the present invention, the screw hole (20) for connecting connecting rod is had in the rear urogenesis of corner rod, the leading section of square tube is formed with rounded portions (21), to make blanketing not to occur when square tube bends, and, the side of through square tube leading section is formed with pin hole (22), by pivot pin (10) in both sides in conjunction with brace (23)
3 rollers (1) are configured closely by pivot pin (11) between the leading section of described brace (23), described 3 rollers are formed with the oil groove (2) of the circle of filling lubricating oil in side, both sides, further, be made up of recess (3) and protuberance (4).
Described 3 rollers (1), configure 2 in the position close to square tube corners of both sides of the edge, and entreat configuration 1 wherein, are configured to rotate respectively respectively.
Described roller (1) forms protuberance (4) in central authorities, recess (3) is formed in its both sides, protuberance (4) is for being close to the size of the inner face of square tube, it is less that recess (3) compares its diameter, therefore, depression (30) is formed by recess (3) when bending.
The formation of other plugs of the present invention, be formed at the rounded portions (21) of the leading section of corner rod, recess (24) and protuberance (25) is formed in the position of the recess (3) of roller (1) and the wire of protuberance (4), thus, corner rod is inserted into the part be bent fully, also can pass through recess (3) and the protuberance (4) of roller (1), make in the depression (30) of sweep formation injury-free.
The undeclared symbol 50 of accompanying drawing is square tube, 51 is bending machine, 52 be connecting rod, 53 be plug.
The following describes the effect of bending square tube plug of the present invention as constituted above.
In order to use according to the roll-type plug (53) for bending square tube of the present invention, square tube (50) is bent, use known bending machine (51), omit the explanation of the running to bending machine, only the effect of plug is described.
First, plug (53) is inserted in the inside of square tube (50), makes the roller (1) forming plug be positioned at the part that will bend of square tube.
In this condition, when using known bending machine (51) to be undertaken bending by square tube (50), the roller (1) forming plug (53) is contacted with the inner face of the sweep of square tube and rubs, now, roller (1) rotates, lubricating oil (lubricating grease) in oil groove (2) flows out, thus, the friction and wear of the roller caused because of the friction between the sweep inner face of square tube and roller is minimized, and, also to roller and brace, roller and pivot pin are each other, the lubricating grease in oil groove (2) supplied each other by roller and roller, thus, play lubrication on the whole, thus, the running of plug can be completed smoothly.
Especially, the roller (1) forming plug is made up of recess (3) and protuberance (4), therefore, depression (30) is formed at the sweep of square tube by recess (3), and be full of cracks can be prevented, play reinforcement function, thus, improve the quality of products.
Roller of the present invention (1), forms 2 at edge, form 1 separately in-between, make to rotate separately, and be the faceted portions because of square tube when namely bending at edge and central portion, the frictional force suffered by roller must be different, square tube
type faceted portions needs the comparatively great of plastic deformation, one type middle body is because of easy plastic deformation, thus, the frictional force that the roller of faceted portions and the roller of central portion bear is different, and rotation number is also different, therefore, roller is needed to rotate freely separately, further, also need between roller to reduce friction.
And, roller (1) is installed in brace (23), roller (1) rotates centered by pivot pin, brace mobile certain angle centered by pivot pin simultaneously, and the front end of plug is circular, therefore, when expanding the angle of bend of square tube and carry out bending, the rounded portions formed by the leading section of the corner rod at formation plug and 2 fulcrums of roller, the inner face of supporting square tube.
Thus, without the need to compactly being moved by plug, and by widely supporting the sweep of square tube, can prevent the sweep of square tube from occurring to sink.
Claims (3)
1. a bending square tube plug, this plug has the screwed hole for connecting connecting rod in the rear urogenesis of corner rod, rounded portions is formed in the leading section of corner rod, not hinder the bending of square tube, the side in nose portion, through corner is formed with pin hole, passes through pivot pin (10) in conjunction with brace in both sides, between the leading section of described brace, by pivot pin (11), roller is installed, it is characterized in that
Described roller at the partial configuration close with corner angle 2 of square tube both sides of the edge, and, between 2 roller, be close to configuration 1, make to rotate respectively respectively,
Circular oil groove (2) is formed in the side of roller, so that when carrying out buckling work, when there is rubbing action in the inside of square tube in described roller, friction is reduced to supplying lubricating oil between roller and square tube, between roller and brace, between roller and pivot pin (11) and between roller and other rollers
Each roller described, in order to form depression by recess (3) in square tube when carrying out buckling work, being formed with protuberance (4) in central authorities, being formed with recess (3) in the both sides of described protuberance (4).
2. bending square tube plug according to claim 1, is characterized in that,
Form the rounded portions (21) of the leading section of corner rod, in order to prevent depression (30) damaged formed at the sweep of square tube, be formed with recess (24) and protuberance (25) in the wire position that the recess (3) with roller (1) is identical with protuberance (4).
3. bending square tube plug according to claim 1, is characterized in that,
The roller of more than 1 is installed between the brace of leading section being configured at corner rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003135.3A CN104759501A (en) | 2014-01-03 | 2014-01-03 | Core rod for bending square pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003135.3A CN104759501A (en) | 2014-01-03 | 2014-01-03 | Core rod for bending square pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104759501A true CN104759501A (en) | 2015-07-08 |
Family
ID=53641780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410003135.3A Pending CN104759501A (en) | 2014-01-03 | 2014-01-03 | Core rod for bending square pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104759501A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209564Y (en) * | 1994-11-22 | 1995-10-11 | 江苏省扬州市客车制造总厂 | Rectangular tube small curvature radius bender |
| CN2317967Y (en) * | 1996-08-07 | 1999-05-12 | 江训忠 | Thin-wall shaped square copper-tube bending machine |
| KR20110123367A (en) * | 2010-05-07 | 2011-11-15 | 주식회사 금창 | Roller style mandrel for square pipe bending |
| CN102688920A (en) * | 2011-12-25 | 2012-09-26 | 河南科技大学 | Pipe bender and bending method using pipe bender |
| CN103861913A (en) * | 2012-12-12 | 2014-06-18 | 北京真金昌汽车科技有限公司 | Multi-shaft bending machine for bending rectangular pipes |
-
2014
- 2014-01-03 CN CN201410003135.3A patent/CN104759501A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209564Y (en) * | 1994-11-22 | 1995-10-11 | 江苏省扬州市客车制造总厂 | Rectangular tube small curvature radius bender |
| CN2317967Y (en) * | 1996-08-07 | 1999-05-12 | 江训忠 | Thin-wall shaped square copper-tube bending machine |
| KR20110123367A (en) * | 2010-05-07 | 2011-11-15 | 주식회사 금창 | Roller style mandrel for square pipe bending |
| CN102688920A (en) * | 2011-12-25 | 2012-09-26 | 河南科技大学 | Pipe bender and bending method using pipe bender |
| CN103861913A (en) * | 2012-12-12 | 2014-06-18 | 北京真金昌汽车科技有限公司 | Multi-shaft bending machine for bending rectangular pipes |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |