CN101347802A - Top pulling device in pipe bender - Google Patents
Top pulling device in pipe bender Download PDFInfo
- Publication number
- CN101347802A CN101347802A CNA2008100218805A CN200810021880A CN101347802A CN 101347802 A CN101347802 A CN 101347802A CN A2008100218805 A CNA2008100218805 A CN A2008100218805A CN 200810021880 A CN200810021880 A CN 200810021880A CN 101347802 A CN101347802 A CN 101347802A
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- Prior art keywords
- pipe
- pushing
- oil cylinder
- pushing tow
- piston
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a pushing device in a pipe bending machine, which can cause the pipe bending machine to bend short pipes; the pushing device comprises a pushing pipe, an oil cylinder base and a dual-outlet type pushing oil cylinder which is arranged on the oil cylinder base; a piston of the pushing oil cylinder and piston rods which are arranged at the left side and the right side of the piston are provided with perforated operation holes; the end part of the piston rod at the left side is provided with the pushing pipe; the internal hole of the pushing pipe is communicated with the operation hole; the end part of the piston rod at the right side is provided with a position limit nut by a thread; the oil cylinder base is movably arranged on a sliding plate which is movably arranged on a rack; the rack is provided with a positioning tooth; the side part of one side of the positioning tooth is embedded in the positioning concave trough of the sliding plate. A pushing connecting pipe with a hollow structure is also arranged between the pushing pipe and the piston rod. The pipe bending machine installed with the pushing device of the invention can be used for processing the short pipes, especially for the short pipes with the bending radius which is equal to or less than 1.5 times of the external diameter of the pipe.
Description
Technical field
The present invention relates to bending machine, refer more particularly to the thrustor in the bending machine.
Background technology
As everyone knows, when bending minor radius tubing, bending machine need use thrustor, as shown in Figure 1, its structure generally includes: a pipe bending cylinder 1 and a two removing from mould material grasping oil cylinder 3 that is arranged on the push block 2, one end of the piston rod 4 of material grasping oil cylinder 3 is provided with the material-hent claw mould 5 of taper, the other end of the piston rod 4 of material grasping oil cylinder 3 and the piston rod of liftout oil cylinder 1 are set together, and a side of material grasping oil cylinder 3 also is provided with the tapered sleeve 6 that matches with material-hent claw mould 5.During bend pipe, material grasping oil cylinder 3 is action earlier, allows the cylinder body band of material grasping oil cylinder 3 tapered sleeve 6 and draws back, like this, material-hent claw mould 5 is clamped the tubing that places material-hent claw mould 5 inner chambers under the compressing of tapered sleeve 6, then, pipe bending cylinder 1 action pushes certain distance forward with tubing (together with material grasping oil cylinder 3).When the material-hent claw mould 5 in this thrustor grasps tubing, require the length of tubing can not be too short, because tubing is managed very much, material-hent claw mould 5 will be run into bending die during bend pipe, and bend pipe just can't carry out.Therefore, present bending machine can't be that the bend pipe rear end is short to short tube, and especially the short tube of bending radius≤1.5 times tube outer diameter is processed.
Summary of the invention
A technical problem to be solved by this invention is: a kind of thrustor that makes in bending machine carries out bend pipe to short tube the bending machine is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the thrustor in the bending machine, comprise: pushing tow pipe, pipe bending cylinder and oil cylinder seat, pipe bending cylinder is arranged on the oil cylinder seat, pipe bending cylinder is two removing from mould oil cylinders, and the piston of pipe bending cylinder and the piston rod that is arranged in its left and right sides offer the handle hole of perforation, and the end of left hand piston bar is provided with the pushing tow pipe, the endoporus of pushing tow pipe communicates with handle hole, and the end of right hand piston bar is provided with stop nut by screw thread; Described oil cylinder seat is movably arranged on the slide plate, and slide plate is movably arranged on the tooth bar, and tooth bar is provided with positioning tooth, and a side sidepiece of positioning tooth is embedded in the detent of slide plate.
The pushing tow that also is provided with hollow structure between described pushing tow pipe and the piston rod is taken over, and the endoporus that pushing tow is taken over communicates with pushing tow pipe and handle hole.
The invention has the beneficial effects as follows: the pushing tow pipe among the present invention is abutted together with the end face that is sleeved on the tubing on the plug in the mandrel positioning device, and under the effect of pipe bending cylinder, the pushing tow pipe withstands tube end face, send certain distance (by stop nut control) with tubing to sinciput, the attenuate amount of tubing when greatly reducing the bending small-bend radius like this, avoid the generation of substandard products such as tube wall breaks in the bend pipe process, big attenuate, wrinkle, waste product, kept the original every specification requirement of tubing.In addition and since oil cylinder seat can be on slide plate move left and right, and slide plate moves before and after can be on tooth bar, thereby has satisfied differently curved radius, different bend pipes rear end length.Like this with regard to the bend pipe problem of the short tube that solved bending radius≤1.5 times tube outer diameter well.
Description of drawings
Fig. 1 is the structural representation of the described thrustor of this background technology;
Among the figure: 1, pipe bending cylinder, 2, push block, 3, the material grasping oil cylinder, 4, piston rod, 5, the material-hent claw mould, 6, tapered sleeve.
Fig. 2 is the sectional structure schematic diagram of thrustor of the present invention;
Fig. 3 is the structural representation of the left apparent direction of Fig. 2;
Among Fig. 2 to Fig. 3: 1, pushing tow pipe, 2, pushing tow takes over, 3, fastening screw nut, 4, oil cylinder seat, 5, pipe bending cylinder, 51, piston, 52, piston rod, 53, piston rod, 54, handle hole, 6, slide plate, 7, positioning tooth, 8, tooth bar, 9, stop nut.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 2, thrustor in the bending machine of the present invention, comprise: pushing tow pipe 1, oil cylinder seat 4 and be arranged on two removing from mould pipe bending cylinders 5 on the oil cylinder seat 4, the piston 51 of pipe bending cylinder 5 and the piston rod 52 and 53 that is arranged in the piston left and right sides offer the handle hole 54 of perforation, the end of left hand piston bar 52 is taken over 2 with pushing tow and is linked to each other, pushing tow is taken over 2 and is linked to each other with pushing tow pipe 1, the endoporus of pushing tow pipe 1 communicates with the endoporus of pushing tow adapter 2, the endoporus of pushing tow adapter 2 communicates with handle hole 54, and the end of right hand piston bar 53 is provided with stop nut 9 by screw thread; Described oil cylinder seat 4 is movably arranged on the slide plate 6 by a pair of T type slide rail, slide plate 6 is movably arranged on the tooth bar 8 by a pair of T type slide rail---referring to shown in Figure 3, tooth bar 8 is provided with positioning tooth 7, and a side sidepiece of positioning tooth 7 is embedded in the detent of slide plate 6.During practical application, positioning tooth 7 is locked on the tooth bar 8 by clamping screw, and tooth bar 8 is fixed on the lathe usually.
The course of work of the present invention is: the plug in the mandrel positioning device from the handle hole 54 of mutual perforation and pushing tow take over 2 and the endoporus of pushing tow pipe 1 stretch into the tubing that is arranged in pushing tow pipe 1 dead ahead, adjust the stroke of pushing tow pipe 1 by adjusting stop nut 9 then, start pipe bending cylinder 5, pushing tow pipe 1 withstands tube end face under the effect of pipe bending cylinder 5, send certain distance with tubing to sinciput---this distance is by the stroke decision of pushing tow pipe 1, the attenuate amount of tubing when greatly reducing the bending small-bend radius like this, avoided that tube wall breaks in the bend pipe process, big attenuate, substandard products such as wrinkle, the generation of waste product keeps the original every specification requirement of tubing.In addition, can be by adjusting the needs that the left and right sides position of oil cylinder seat 4 on slide plate 6 adapts to differently curved radius; Can also be by adjusting the needs that the front and back position of slide plate 6 on tooth bar 8 adapts to different bend pipes rear end length, specifically, when the tubing straight section is longer, slide plate 6 moves backward, its specific operation process is: loosening locking nut, positioning tooth 7 to be taken out, and slide plate 6 moves certain distance backward, positioning tooth 7 is packed into, tighten locking nut and get final product.Like this with regard to the bend pipe problem of the short tube that solved bending radius≤1.5 times tube outer diameter well.
Claims (2)
1. the thrustor in the bending machine, comprise: pushing tow pipe, pipe bending cylinder and oil cylinder seat, pipe bending cylinder is arranged on the oil cylinder seat, it is characterized in that: described pipe bending cylinder is two removing from mould oil cylinders, the piston of pipe bending cylinder and the piston rod that is arranged in its left and right sides offer the handle hole of perforation, the end of left hand piston bar is provided with the pushing tow pipe, and the endoporus of pushing tow pipe communicates with handle hole, and the end of right hand piston bar is provided with stop nut by screw thread; Described oil cylinder seat is movably arranged on the slide plate, and slide plate is movably arranged on the tooth bar, and tooth bar is provided with positioning tooth, and a side sidepiece of positioning tooth is embedded in the detent of slide plate.
2. the thrustor in the bending machine as claimed in claim 1 is characterized in that: the pushing tow that also is provided with hollow structure between described pushing tow pipe and the piston rod is taken over, and the endoporus that pushing tow is taken over communicates with pushing tow pipe and handle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021880A CN100574918C (en) | 2008-08-18 | 2008-08-18 | Thrustor in the bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021880A CN100574918C (en) | 2008-08-18 | 2008-08-18 | Thrustor in the bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101347802A true CN101347802A (en) | 2009-01-21 |
| CN100574918C CN100574918C (en) | 2009-12-30 |
Family
ID=40266863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810021880A Expired - Fee Related CN100574918C (en) | 2008-08-18 | 2008-08-18 | Thrustor in the bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100574918C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829714B (en) * | 2009-12-20 | 2011-08-24 | 张家港和升数控机床制造有限公司 | Powerful pushing device of fully-automatic pipe bender |
| CN103464548A (en) * | 2013-09-25 | 2013-12-25 | 张家港市华舜机械制造有限公司 | Dual-purpose auxiliary pushing device for pipe bending machine |
-
2008
- 2008-08-18 CN CN200810021880A patent/CN100574918C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829714B (en) * | 2009-12-20 | 2011-08-24 | 张家港和升数控机床制造有限公司 | Powerful pushing device of fully-automatic pipe bender |
| CN103464548A (en) * | 2013-09-25 | 2013-12-25 | 张家港市华舜机械制造有限公司 | Dual-purpose auxiliary pushing device for pipe bending machine |
| CN103464548B (en) * | 2013-09-25 | 2015-03-04 | 张家港市华舜机械制造有限公司 | Dual-purpose auxiliary pushing device for pipe bending machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100574918C (en) | 2009-12-30 |
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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 | ||
| 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: 20091230 Termination date: 20190818 |