CN2256779Y - Automatic self-aligning clamping jaw for steel pipe cold-draw equipment - Google Patents
Automatic self-aligning clamping jaw for steel pipe cold-draw equipment Download PDFInfo
- Publication number
- CN2256779Y CN2256779Y CN 96226416 CN96226416U CN2256779Y CN 2256779 Y CN2256779 Y CN 2256779Y CN 96226416 CN96226416 CN 96226416 CN 96226416 U CN96226416 U CN 96226416U CN 2256779 Y CN2256779 Y CN 2256779Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- slide block
- chute
- jaw
- clamping jaw
- Prior art date
- 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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Abstract
The utility model provides an automatic self-aligning clamping jaw for steel pipe cold-drawing equipment, comprising the cuneate jaw body (1) of a conventional clamping jaw, a left cutting die (2), a right cutting die (3), a connecting rod (4), a right connecting rod (5), a chute (7), a piston rod (8) and a cylinder (9). The inner part of the chute (7) is provided with a rotatable circular slide block (6) which substitutes a conventional rectangular slide block which is not rotatable. The left and the right cutting dies are guaranteed to sufficiently clamp the flat head of a pipe which enters the jaw body through the linear movement and the rotation of the circular rotatable slide block. The utility model eliminates the accidents such as cutting die skid and cutting die rupture which are caused by the deviation of the centerline of the flat head and the centerline of the drawing process.
Description
The utility model belongs to metal pipe material cold-drawn manufacture field, particularly a kind of steel pipe drawbench automatic aligning clamping claw.
Conventional drawbench clamping claw dolly by wedge shape jaw body, be contained in the left and right sides screw die in the jaw body, drive the left and right connecting rod of left and right screw die, the rectangular shaped slider that is connected with left and right connecting rod, for the chute that rectangular shaped slider is slided, the cylinder piston rod and the cylinder block that promote slide block movement are formed.
The operation principle of this drawbench jaw dolly is: when draw pipe fitting homalocephalus stretches into the draw mould and sends between the jaw, cylinder promotes rectangular shaped slider by piston rod and carry out rectilinear motion in chute, by the left and right sides connecting rod rectilinear motion is passed to left and right sides screw die again, form the equivalent rectilinear motion on the inclined-plane, the wedge shape jaw left and right sides, realize the clamping of jaw homalocephalus.The left and right screw die center line of jaw coincides with the draw center line of drawbench during design, i.e. its eccentricity value A=0.
In actual production process, before cold-drawn, at first the pipe fitting head is forged into homalocephalus, carry out the squama processing then.Because the scrambling of former tube wall is swaged into the irregular turnup of homalocephalus.So the center line that the homalocephalus part generally occurs forms the off-centre of 0～10mm with the pipe center line.After pipe stretches into mould, the pipe center line basically with the draw central lines of drawbench, the homalocephalus center line then forms the off-centre of 0～10mm with the draw center line.When cylinder promotes screw die clamping homalocephalus, a side is arranged earlier with the screw die contact, the just no longer motion of cylinder this moment, so the contact of opposite side screw die discord homalocephalus.Carry out drawing in this case, screw die will occur and skid with jaw, screw die accident such as break can't realize draw.
The purpose of this utility model provides a kind of automatic aligning jaw that has rotatable round slider, makes jaw automatically adjust position of center line with homalocephalus, thereby makes screw die clamp homalocephalus reliably, realizes the cold-drawn operation safely.
According to the utility model, make the rectangular shaped slider of routine into rotating round slider, these round slider both sides still are connected with left and right sides connecting rod, and the rear end then is hinged with cylinder piston rod, makes this round slider can do to a certain degree rotation in chute.
In process of production, when being stretched into mould and sending between the jaw by the pipe fitting homalocephalus of draw, cylinder promotes rotatable slide block by piston rod and realizes also can realizing rotating in the linear slide in chute.If homalocephalus center line and draw center line off-centre, when one side and screw die contact, by rotate opposite side continue motion make this side plate tooth and partially head contact, form complete clamping, thoroughly prevented to skid because of screw die and jaw that the single face clamping is caused, screw die is pulled open accident such as split.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is a jaw schematic diagram of the present utility model.
As shown in the figure, steel pipe drawbench automatic aligning clamping claw of the present utility model, comprise the wedge shape jaw body (1) of conventional clamping claw, left screw die (2), right panel tooth (3), left connecting rod (4), right connecting rod (5), chute (7), piston rod (8) and cylinder (9), but with slidably with the circular slide plate (6) that rotates, these rotatable slide block (6) both sides are connected with left and right connecting rod (4), (5) respectively, and the rear end then is hinged with the piston rod (8) of cylinder.
Employing is according to automatic aligning clamping claw of the present utility model, and when being stretched into mould and sending between the jaw by the pipe fitting homalocephalus of draw, cylinder (9) promotes slidably by piston rod (8) and turning block (6) is realized rectilinear motion in chute (7).If homalocephalus center line and draw center line are concentric, then slide block (6) drives left and right connecting rod (4), (5) motion, then left and right screw die is moved on wedge shape jaw inclined-plane, until left and right screw die (2), (3) simultaneously and homalocephalus contact and bite homalocephalus, carry out drawing.If the homalocephalus center line departs from mutually with the draw line, then in the screw die sliding process, must there be a side at first to contact with homalocephalus, this side plate tooth after the contact no longer moves, and opposite side connecting rod one screw die moves on owing to the rotation of slide block (6), contacts with homalocephalus and bites homalocephalus until screw die, and promptly the rectilinear motion by rotatable slide block adds rotational motion, guarantee the both sides screw die all can and homalocephalus contact and realize that safe drawing operates, make to clip reliability and reach 100%.
Claims (1)
1, a kind of steel pipe drawbench automatic aligning clamping claw, comprise wedge shape jaw body (1), left screw die (2), right panel tooth (3), left connecting rod (4), right connecting rod (5), chute (7), piston rod (8) and cylinder (9), it is characterized in that in chute (7), being equipped with slidably and rotate round slider (6), these rotatable slide block (6) both sides are connected with left and right connecting rod (4), (5) respectively, the rear end then and cylinder piston rod (8) be hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226416 CN2256779Y (en) | 1996-05-28 | 1996-05-28 | Automatic self-aligning clamping jaw for steel pipe cold-draw equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226416 CN2256779Y (en) | 1996-05-28 | 1996-05-28 | Automatic self-aligning clamping jaw for steel pipe cold-draw equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256779Y true CN2256779Y (en) | 1997-06-25 |
Family
ID=33904803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226416 Expired - Fee Related CN2256779Y (en) | 1996-05-28 | 1996-05-28 | Automatic self-aligning clamping jaw for steel pipe cold-draw equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256779Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972786A (en) * | 2010-08-17 | 2011-02-16 | 江苏诚德钢管股份有限公司 | Clamping device of steel pipe grip maker |
| CN102527754A (en) * | 2011-12-07 | 2012-07-04 | 浙江伦宝金属管业有限公司 | Automatic material conveying and identifying device of cold-drawn steel tubes |
| CN103949488A (en) * | 2014-05-04 | 2014-07-30 | 上海第二工业大学 | Automatic centering device for bent pipe material |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
| CN117282865A (en) * | 2023-11-24 | 2023-12-26 | 星箭中航(成都)机械制造有限公司 | Self-aligning concentric flaring device |
-
1996
- 1996-05-28 CN CN 96226416 patent/CN2256779Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972786A (en) * | 2010-08-17 | 2011-02-16 | 江苏诚德钢管股份有限公司 | Clamping device of steel pipe grip maker |
| CN102527754A (en) * | 2011-12-07 | 2012-07-04 | 浙江伦宝金属管业有限公司 | Automatic material conveying and identifying device of cold-drawn steel tubes |
| CN103949488A (en) * | 2014-05-04 | 2014-07-30 | 上海第二工业大学 | Automatic centering device for bent pipe material |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
| CN117282865A (en) * | 2023-11-24 | 2023-12-26 | 星箭中航(成都)机械制造有限公司 | Self-aligning concentric flaring device |
| CN117282865B (en) * | 2023-11-24 | 2024-02-20 | 星箭中航(成都)机械制造有限公司 | Self-aligning concentric flaring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |