CN106862595A

CN106862595A - A kind of steel pipe is not in the mood for peeling machine

Info

Publication number: CN106862595A
Application number: CN201510913183.0A
Authority: CN
Inventors: 范洪国
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2017-06-20

Abstract

Can complete not being in the mood for peeling machine to the steel pipe that the hot finished steel pipe for having certain flexibility carries out centreless cutting processing the invention discloses a kind of, the device mainly includes peeling machine host, input and runout table, knife rest, floating installation, clamping and conveying device, wherein clamping and conveying device are by steel pipe axial feeding, circumferentially equally distributed cutter is fixed on knife rest plate by knife rest, can rotate with it and steel pipe is carried out not to be in the mood for skinning operations.The steel pipe is not in the mood for peeling machine has that operating efficiency is high, consume energy that small, fault rate is low, simple structure, product quality are high and the features such as not increasing its original-shape, dimensional discrepancy.

Description

A kind of steel pipe is not in the mood for peeling machine

Technical field

Can complete not being in the mood for peeling machine to the steel pipe that the hot finished steel pipe for having certain flexibility carries out centreless cutting processing the present invention relates to a kind of.

Background technology

According to China's metallurgical industry ministerial standard, for boiler steel high pressure seamless pipe except have to its chemical analysis, mechanical performance, HTHP performance etc. some specify in addition to, also there is particular/special requirement to its inside and outside surface quality, do not allow surfaces externally and internally with the presence of crack, fold, scab and the defect such as iron scale, these defects must be fully erased, the method for removing steel tube surface defect at present, the predominantly method of turnery processing.

But this conventional cutting process, steel pipe two ends are fixed feedings, cutter is also with fixed central rotation, because the tubing after hot rolled is unlikely to be straight, the cutter centre of gyration can not possibly be concentric all the time with steel pipe center so in turning, thus with conventional method for turning peeling after, wall thickness dimension deviation certainly will be increased, even beyond the scope of technical standard, so that yield rate is relatively low.

The content of the invention

Increase the shortcoming of workpiece dimensional discrepancy for the meeting for overcoming existing peeling equipment, the present invention provides a kind of steel pipe and is not in the mood for peeling machine.

The technical solution adopted for the present invention to solve the technical problems is：The steel pipe is not in the mood for peeling machine includes peeling machine host, input and runout table, knife rest, floating installation, clamping and conveying device, it is characterised in that：Steel pipe axial feeding, circumferentially equally distributed cutter are fixed on knife rest plate by clamping and conveying device by knife rest, can rotate with it and steel pipe is carried out not to be in the mood for skinning operations.

Cutter frame structure includes cutter, seaming roll, hold-down roller, it is characterised in that：Knife rest is fixed on cutterhead frame and rotates with it, and it is steel pipe feeding direction that arrow is signified, and hold-down roller abuts against steel tube surface, and the cutting output of the envelope radius of circle knife smaller than hold-down roller that cutter and seaming roll rotate, its big I is adjusted by a set of adjustment mechanism.

Floating installation includes fixing axle, set long, floating axle, short set, it is characterised in that：The device is made up of two groups of orthogonal axles, each group is a pair of parallel axle, trunnion axis is fixed, set long in fixing axle can be moved in the horizontal direction along the axle, length puts affixed a pair of floating axles, short set on this axle can be moved along the axle in vertical direction, knife rest plate just puts mounted in short, therefore cutter is while rotation, can be moved along orthogonal both direction, also any direction movement between, when steel pipe is sent into, steel pipe cross-section center where cutter is continually changing, and floating installation can then be such that the cutter centre of gyration is thereon consistent with steel pipe cross-section center herein all the time, peeling is not in the mood for it so as to realize steel pipe.

Compared with prior art the beneficial effects of the invention are as follows：The steel pipe is not in the mood for the be not in the mood for skinning operations of the cutter head completion to steel pipe of peeling machine, and high working efficiency, fault rate is low, and product quality is high, and does not increase its original-shape, dimensional discrepancy.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Fig. 1 is operating diagram of the invention.

Fig. 2 is cutter frame structure schematic diagram.

Fig. 3 is floating installation schematic diagram.

Fig. 4 is that common turning influences schematic diagram to wall thickness.

Fig. 5 is not to be in the mood for turning to influence schematic diagram to wall thickness.

1. steel pipe in Fig. 1,2. cutterhead frame, 3. cutter.

4. cutter in Fig. 2,5. seaming roll, 6. hold-down roller.

7. fixing axle in Fig. 3,8. grows set, 9. floating axle, 10. short set.

Specific embodiment

In Fig. 1, including steel pipe, cutterhead frame, cutter, clamping and conveying device is by steel pipe（1）Axial feeding, cutter（3）Knife rest plate is fixed on by knife rest（2）, can rotate with it and to steel pipe（1）Peeling is carried out, due to steel pipe（1）Certain flexibility is allowed, its center is to change during feeding, therefore fixed cutting tool（3）Knife rest plate（2）Must be that center is relocatable, make cutter（3）All the time with steel pipe（1）Keep concentric, that is, cutter（3）It is not in the mood in cutting, equal thickness ground is by steel pipe（1）Peel a layer from epidermis, without changing wall thickness deviation, the knife rest plate on floating installation（2）It is upper that 3 to 6 cutters are uniformly installed（3）, these knives are not to install at grade, along one amount of feeding of axis misalignment between knife and knife, these knives are successively contacted with steel pipe when therefore starting cutting, make it is every knife is undertaken a part of amount of feeding, two for finally contacting knife be smart car, depending on size of the cutter group number by total feed amount.

In fig. 2, including cutter, seaming roll, hold-down roller, this device is fixed on knife rest plate and rotates with it, and it is steel pipe feeding direction, hold-down roller that arrow is signified（6）Abut against steel tube surface, cutter（4）And seaming roll（5）The envelope radius of circle of rotation compares hold-down roller（6）Want the cutting output of a small knife, its big I to be adjusted by a set of adjustment mechanism, to reduce vibrations during cutting, shock mitigation system is housed on knife rest.

In figure 3, including fixing axle, set long, floating axle, short set, device is made up of two groups of orthogonal axles, and each group is a pair of parallel axle, a pair of fixing axles therein（7）It is to be connected with final drive shaft with ring flange, the pivot of ring flange is fixed, the set long in fixing axle（8）Horizontal direction that can be along the axle in diagram is moved, set long（8）Upper affixed a pair of floating axles（9）, the short set on this axle（10）Vertical direction that can be along the axle in diagram is moved, and knife rest plate is just mounted in short set（10）On, linear bearing is used between axle and set, therefore, cutter can be moved while rotation along orthogonal both direction, also any direction movement between, steel pipe center line with certain flexibility is a space curve, and when steel pipe is sent into, the steel pipe cross-section center where cutter is continually changing, and floating installation can then be such that the cutter centre of gyration is thereon consistent with steel pipe cross-section center herein all the time, peeling is not in the mood for so as to realize steel pipe.

Claims

1. a kind of steel pipe is not in the mood for peeling machine, including peeling machine host, is input into and runout table, knife rest, floating installation, clamping and conveying device, it is characterized in that：Can complete to carry out centreless cutting process operation to the hot finished steel pipe for having certain flexibility.

2. steel pipe according to claim 1 is not in the mood for peeling machine, it is characterized in that, described knife rest is fixed on cutterhead frame and rotates with it, hold-down roller abuts against steel tube surface, the cutting output of cutter and an envelope radius of circle knife smaller than hold-down roller of seaming roll rotation, its big I is adjusted by a set of adjustment mechanism.

3. steel pipe according to claim 1 is not in the mood for peeling machine, characterized in that, described floating installation is made up of two groups of orthogonal axles, each group is a pair of parallel axle, trunnion axis is fixed, set long in fixing axle can be moved in the horizontal direction along the axle, and length puts affixed a pair of floating axles, and the short set on this axle can be moved along the axle in vertical direction, knife rest plate just puts mounted in short, therefore cutter can be moved while rotation along orthogonal both direction, also between any direction move.

4. the steel pipe according to claim 1 and 3 is not in the mood for peeling machine, it is characterised in that 3 to 6 cutters are uniformly installed on the knife rest plate on described floating installation, and these knives are not to install at grade, along one amount of feeding of axis misalignment between knife and knife.