CN101081461A - Technological process of incising pipes and chamfering by using intersecting cutter - Google Patents
Technological process of incising pipes and chamfering by using intersecting cutter Download PDFInfo
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- CN101081461A CN101081461A CN200610013960.7A CN200610013960A CN101081461A CN 101081461 A CN101081461 A CN 101081461A CN 200610013960 A CN200610013960 A CN 200610013960A CN 101081461 A CN101081461 A CN 101081461A
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Abstract
The present invention provides technological process of cutting and chamfering pipe with one intersecting cutter. The technological process includes the following steps: 1. aligning the cutting gun to the point A on the pipe; 2. jetting plasma arc to the point A to perforate; 3. moving the cutting gun along the introducing arc locus to cut until reaching the point B; 4. turning the pipe while maintaining the cutting gun immobile for cutting and chamfering; and 5. stopping after turning the pipe by one circle, and moving the cutting gun to cut from the point B to the point C along the educing arc. The present invention has high cutting quality, and may be used in cutting and chamfering pipe of 60-700 mm diameter.
Description
Technical field
What the present invention relates to is the new application of intersecting cutter, particularly be the process of utilizing intersecting cutter incising pipes cross section and chamfered edge.
Background technology
The length of tubing processing usually is subjected to the restriction of equipment, connects with welding or pipe box cupling lengthening usually.If the employing welding procedure is finished the connection to straight tube, interface should be processed the chamfered edge of being convenient to weld, i.e. chamfering.But, it is tubing below 340 millimeters that the chamfering machine of prior art is generally processed diameter, when on chamfering machine, diameter being surpassed more than 340 millimeters the heavy caliber pipe chamfered edge, because the increase of tube outer diameter, by the heavy caliber pipe of producing with the minor caliber pipe identical standard in ovality, directly the difference aspect the degree can corresponding increase, after tubing rotates at a high speed, because the influence of difference makes heavy caliber pipe chamfered edge quality obviously descend.Therefore, the tubing of diameter above 340 millimeters is not suitable for chamfered edge on chamfering machine, causes above-mentioned bigbore tubing to adopt welding procedure to be connected into long tube and brings difficulty.
For overcoming the defective that above-mentioned chamfering machine exists, use the tube end face that the intersection-line cutting machine cutting diameter surpasses 340 millimeters instead, in the cutting end face, finish chamfered edge to end face.But, during with intersection-line cutting machine incising pipes end face, have defective as shown in fig. 1.
Fig. 1 is the vertical view that existing technology cutting back tube end face M-N stays semicircle perforation K.
As shown in Figure 1, semicircle perforation K is left in the tube end face inboard after being cut, and this semicircle perforation K adopts in the intersection-line cutting machine incising pipes end face technical process and stays.This production process is: at first, the cutting gun of intersection-line cutting machine is aimed at the Q point that is cut on the tubing 10 cross section M-N, and secondly, cutting gun triggers plasma arc, at Q point perforation K, is cut tubing 10 behind the perforation K and begins to be rotated counterclockwise (seeing from left to right).Cutting gun carries out the circumference cutting along the tubing 10 cross section M-N that rotate to tubing and gets back to central point Q again from the central point Q of perforation K, finishes the cutting and the chamfered edge of tubing.The shortcoming that this technology exists is: perforation K is the through hole that certain diameter is arranged, on the tube end face behind cutting and the chamfered edge, can stay the groove of perforation K one semiaperture, cause the tube end face out-of-flatness after the cutting, can not satisfy the requirement of tubing processing technology, perforation Q must be stayed on the M-N face groove of half during welding fills and leads up, if when welding this groove to fill and lead up effect bad, directly influence welding quality, then construction is brought serious hidden danger.
Summary of the invention
The objective of the invention is to overcome the deficiency in the above-mentioned technology, a kind of new technology of utilizing intersection-line cutting machine to heavy caliber pipe cutting and chamfered edge is provided, groove appears leaving in the tube end face of avoiding cutting behind the chamfered edge, guarantee the tube end face flatness, improve the process of utilizing intersecting cutter incising pipes and chamfered edge of tubing welding quality.
The technical scheme that solves the problems of the technologies described above is:
A kind of process of utilizing intersecting cutter incising pipes and chamfered edge, described process is carried out as follows: (1). and the cutting gun of intersecting cutter is aimed at and is cut the A point on the stub bar between tubing cross section and its end face; (2). cutting gun penetrates plasma arc and perforation to the A point; (3). cutting gun is a starting point with the A point, moves cutting along introducing arc track to the tubing cross section, makes to be cut the tangent line of tubing cross section as above-mentioned introducing circular arc, and the B point is the point of contact; (4). when cutting gun was cut to point of contact B, it is slack that cutting gun is in the striking state, is cut tubing this moment to the opposite spin of cutting gun along introducing circular arc motion track, and cutting gun is along the cross section cutting and the chamfered edge of rotation tubing; (5). tubing rotates a circle, and cutting gun current interruption when being cut on the tubing a little forwards the point of contact B that cutting gun stops to moves to the C point and stops by drawing circular arc to the stub bar direction from point of contact B in the time of the cutting gun current interruption.(6). incising pipes and chamfered edge finish.
The invention has the beneficial effects as follows:
(1) utilize technology incising pipes end face of the present invention at intersection-line cutting machine, overcome the defective that the original equipment processing mode exists, make that the incising pipes end face is straight and even, do not have any groove, the quality after the processing satisfies the tubing processing criterion.
(2) tubing adopts and fixes an end, the support of other end rotation, and cutting machine self has the cut point function of following an example, can detect the straight degree and the ovality of tubing by following an example, and this device of following an example difference that straight degree, ovality are caused of following an example has certain range of tolerable variance, can cut so long as not severe overweight, the pipe workpiece quality after guaranteeing to process meets standard-required.
(3) range of work of utilizing intersection-line cutting machine to carry out chamfered edge can reach Φ 60mm～Φ 700mm.
Description of drawings
Fig. 1 is the vertical view that existing technology cutting back tube end face M-N stays semicircle perforation K;
Fig. 2 is that the present invention cuts to get the jump on and begins cutting on the tubing and stop cutting running orbit schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 2 is that the present invention cuts to get the jump on and begins cutting on the tubing and stop cutting running orbit schematic diagram.
As shown in Figure 2, the invention provides a kind of process of utilizing intersecting cutter incising pipes and chamfered edge, described process is carried out as follows:
(1). at first an end of tubing 10 is fixed, on the workbench that is supported on intersecting cutter of its other end rotation, the cutting gun of intersecting cutter is aimed at the A point that is cut on the stub bar 11 that tubing 10 will cut, this stub bar 11 is being cut stub bar (11) between tubing 10 cross section M-N and the tubing 10 end face P-P, and A point on the stub bar 11 and the distance between the M-N of cross section are r;
(2). cutting gun penetrates the plasma arc and the W that bores a hole to the A point;
(3). cutting gun is a starting point with the A point, moves cutting along introducing circular arc A-B track to tubing 10 cross section M-N, makes to be cut the tangent line of tubing 10 cross section M-N as above-mentioned introducing circular arc A-B, and the B point is the point of contact;
(4). when cutting gun was cut to point of contact B, it is slack that cutting gun is in the striking state, is cut tubing 10 this moment to the opposite spin of cutting gun along introducing circular arc A-B motion track, and cutting gun is along the cross section M-N cutting and the chamfered edge of rotation tubing 10;
(5). tubing 10 rotates a circle, and cutting gun current interruption when being cut on the tubing 10 a little forwards the point of contact B that cutting gun stops to moves to the C point and stops by drawing circular arc B-C to stub bar 11 directions from point of contact B in the time of the cutting gun current interruption.This moment, cutting gun left the cross section M-N that is cut tubing 10, and tubing 10 can easily take out.
(6). incising pipes 10 and chamfered edge finish.
Described cutting starting and ending process cutting gun all adopts the cutting of plasma camber line.
Claims (2)
1. a process of utilizing intersecting cutter incising pipes and chamfered edge is characterized in that, described process is carried out as follows:
(1). the cutting gun of intersecting cutter is aimed at and is cut the A point on the stub bar (11) between tubing (10) cross section (M-N) and its end face (P-P);
(2). cutting gun penetrates plasma arc and perforation (W) to the A point;
(3). cutting gun is a starting point with the A point, moves cutting along introducing circular arc (A-B) track to tubing (10) cross section (M-N), makes to be cut the tangent line of tubing (10) cross section (M-N) as above-mentioned introducing circular arc (A-B), and the B point is the point of contact;
(4). when cutting gun was cut to point of contact B, it is slack that cutting gun is in the striking state, is cut tubing (10) this moment to the opposite spin of cutting gun along introducing circular arc (A-B) motion track, and cutting gun is along the cross section M-N cutting and the chamfered edge of rotation tubing (10);
(5). tubing (10) rotates a circle, and cutting gun current interruption when being cut on the tubing (10) a little forwards the point of contact B that cutting gun stops to moves to the C point and stops by drawing circular arc (B-C) to stub bar (11) direction from point of contact B in the time of the cutting gun current interruption.
(6). incising pipes (10) and chamfered edge finish.
2. according to the process described in the claim 1, it is characterized in that described cutting starting and ending process cutting gun all adopts the cutting of plasma camber line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610013960.7A CN101081461A (en) | 2006-05-30 | 2006-05-30 | Technological process of incising pipes and chamfering by using intersecting cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610013960.7A CN101081461A (en) | 2006-05-30 | 2006-05-30 | Technological process of incising pipes and chamfering by using intersecting cutter |
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| Publication Number | Publication Date |
|---|---|
| CN101081461A true CN101081461A (en) | 2007-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610013960.7A Pending CN101081461A (en) | 2006-05-30 | 2006-05-30 | Technological process of incising pipes and chamfering by using intersecting cutter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767267A (en) * | 2010-03-03 | 2010-07-07 | 潮峰钢构集团有限公司 | Technology for processing curve of intersection pipeline |
| CN104493349A (en) * | 2015-01-19 | 2015-04-08 | 嘉兴威斯柏自动化科技有限公司 | Plasma small hole cutting machining method |
| CN107052548A (en) * | 2017-05-04 | 2017-08-18 | 山东大学 | The control method of supervisor's hole cutting process plasma cutting gun height of welding groove |
| CN114850582A (en) * | 2022-05-16 | 2022-08-05 | 中石化石油机械股份有限公司沙市钢管分公司 | Device for breaking burrs in high-frequency welded pipe and diagnosis method |
-
2006
- 2006-05-30 CN CN200610013960.7A patent/CN101081461A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767267A (en) * | 2010-03-03 | 2010-07-07 | 潮峰钢构集团有限公司 | Technology for processing curve of intersection pipeline |
| CN101767267B (en) * | 2010-03-03 | 2012-12-26 | 潮峰钢构集团有限公司 | Technology for processing curve of intersection pipeline |
| CN104493349A (en) * | 2015-01-19 | 2015-04-08 | 嘉兴威斯柏自动化科技有限公司 | Plasma small hole cutting machining method |
| CN107052548A (en) * | 2017-05-04 | 2017-08-18 | 山东大学 | The control method of supervisor's hole cutting process plasma cutting gun height of welding groove |
| CN114850582A (en) * | 2022-05-16 | 2022-08-05 | 中石化石油机械股份有限公司沙市钢管分公司 | Device for breaking burrs in high-frequency welded pipe and diagnosis method |
| CN114850582B (en) * | 2022-05-16 | 2023-12-05 | 中石化石油机械股份有限公司沙市钢管分公司 | Device and diagnosis method for breaking burrs in high-frequency welded pipe |
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