CN101284360A - Process for automatically measuring diameter of steel tube - Google Patents
Process for automatically measuring diameter of steel tube Download PDFInfo
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- CN101284360A CN101284360A CNA2008100381417A CN200810038141A CN101284360A CN 101284360 A CN101284360 A CN 101284360A CN A2008100381417 A CNA2008100381417 A CN A2008100381417A CN 200810038141 A CN200810038141 A CN 200810038141A CN 101284360 A CN101284360 A CN 101284360A
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- steel pipe
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- digital pulse
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Abstract
The invention relates to a method for automatically measuring the diameter of a steel pipe, which is characterized in that the method includes: installing a digital pulse generator, a counter and a calculating unit in the original electrical control device; installing an auxiliary measuring rod capable of moving and positioning along the length direction of idlers on one side of the steel pipe; installing a non-contact magnetic sensor on the auxiliary measuring rod; placing a ferromagnetic sensing head at any position at the circumference of the cutting position; sensing and generating two signals with no contact through rotating the ferromagnetic sensing head once and passing the ferromagnetic sensing head twice; accessing the signals to the counter in the electrical control device; calculating the steel pipe diameter of the cutting position based on the pulse count generated by the digital pulse generator and accumulated by the counter. The method has the advantages that errors caused by the difference between the nominal size and the actual size can be eliminate, and the method has reliable operation, easy maintenance and maintained accuracy.
Description
Technical field
The present invention relates to a kind of method of automatically measuring diameter of steel tube, be used for measuring the steel pipe actual diameter automatically, belong to the measurement mechanism technical field.
Background technology
Steel pipe is pressed nominal diameter and the allowable tolerance production and the supply of material of corresponding product standard, and therefore in fact the actual diameter of each steel pipe is nominal (name) diameter and allowable tolerance sum, and is also unequal with the numerical value of nominal diameter.When automatic gas cutting machines such as adopting flame or plasma carries out the operation of steel pipe customized cut-off or when carrying out the steel-tube intersection-line cutting, at first to accurately measure the actual diameter of steel pipe cut place.This carries out smoothly, guarantees that to guaranteeing operation cut quality is vital.
Adopt the steel pipe intersection line cutting machine and the steel pipe cutting machine of friction pulley drive mechanism to tend to run into the problem that on the girth of steel pipe, produces error in actual use, cause steel pipe can't cut or cross and cut.Analyzing the reason that this error forms, mainly is that the nominal diameter of steel pipe and the actual diameter of cut place have due to the error.Before the steel pipe cutting, need be to the control device input steel pipe nominal diameter of cutting machine, control device calculates main motor by this nominal size and need rotate how many number of turns and just can make and be cut steel pipe and just in time turn over 360 degree, to finish cut-out.Because the actual size and the nominal size of cut place diameter of steel tube have error, and the main motor running is set by nominal size, causes the generation of final cutting error.
The steel pipe intersection line cutting machine of friction pulley transmission and the transmission mechanism of cutting machine are formed shown in accompanying drawing 1,2, carrying roller group 1 drives rotation by motor 2 by reductor 3, the rotation of carrying roller is by electrical control gear 4 controls, and steel pipe 5 to be cut is placed on the carrying roller group, drives its rotation by carrying roller.
The shortcoming of this kind equipment: owing to can't detect the error of steel pipe sizes automatically, and the scale error of correcting input control device, so the phenomenon that pipe can't cut often appears, give manipulated, cut quality brings very big trouble, workpiece is that the large-diameter pipe period of the day from 11 p.m. to 1 a.m is especially true.In order to address this problem, factory requires the operator to remeasure the perimeter of cut place steel pipe before cutting, should be worth input control device and substitute the nominal diameter size, the hand dipping operation is very inconvenient, for the heavy caliber pipe, even need two people to cooperate, time-consuming, measurement result also is difficult for accurately.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can read cut place pipe accurate dimensions data automatically, eliminate error, improve the method for the automatically measuring diameter of steel tube of cut quality.
For realizing above purpose, technical scheme of the present invention provides a kind of method of automatically measuring diameter of steel tube, the carrying roller group drives rotation by motor by reductor, the rotation of carrying roller group is controlled by electrical control gear, steel pipe to be cut is placed on the carrying roller group, drive the steel pipe rotation by carrying roller, it is characterized in that its method is:
The first step. digital pulse generator, counter, arithmetic element are installed in original electrical control gear, and digital pulse generator links to each other with motor, and digital pulse generator is connected with counter, and counter is connected with arithmetic element;
On one side second step. settle and can a contactless magnetic induction sensor be installed on aid measuring pole at steel pipe along aid measuring pole removable on the carrying roller group length direction and the location;
The 3rd step. want any one position on the circumference of cut place at steel pipe, put the ferric induction head;
The 4th step. press the Motor Control button, start steel pipe and rotate towards a direction, digital pulse generator is rotated by motor drives, and sends pulse.When ferric induction head process magnetic induction sensor, can produce a signal, this signal inserts the counter in electrical control gear, and counter begins the umber of pulse that the accumulative total digital pulse generator produces.Steel pipe continues rotation, when the ferric induction head passes through magnetic induction sensor for the second time, produce second signal, this signal inserts the counter in the electrical control gear, counter stops the umber of pulse that the accumulative total digital pulse generator produces, the counter bulk registration umber of pulse that between two signals, produces of digital pulse generator, motor shuts down automatically, steel pipe stops the rotation;
The 5th step. arithmetic element calculates the actual diameter of steel pipe according to the umber of pulse of the digital pulse generator generation of counter records, and measurement is finished.
The present invention wants any one position on the circumference of cut place at steel pipe, put the ferric induction head, revolve by the ferric induction head and to turn around, twice through the ferric induction head, need not contact and can respond to two signals of generation, this signal inserts the counter in the electrical control gear, and the umber of pulse that the digital pulse generator that is added up by counter produces calculates the diameter that steel pipe is wanted the cut place.
Advantage of the present invention is:
1. measure the size of cut place steel pipe, the error that can correct the nominal dimension of input control device automatically with the present invention, thereby eliminate error because of the different formation of nominal size and actual size, accomplish to allow and accurately revolved three-sixth turn by Pipe Cutting, cutting finishes error free, improve cut quality, the present invention is particularly suitable for the cutting of large-diameter steel pipe.
2. contactless magnetic induction sensor and inductive head, the accuracy height, equipment does not have wearing and tearing, and the life-span is long, and is safe in utilization;
3. the equipment of the present invention's needs is simple, and reliable operation is easy to safeguard and keep accuracy.
Description of drawings
Fig. 1 is a friction pulley transmission mechanism structural representation;
Fig. 2 is a friction pulley transmission mechanism right view;
Fig. 3 is a kind of structural representation of automatically measuring diameter of steel tube method;
Fig. 4 is the A-A cutaway view.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
Shown in Fig. 3,4, structural representation for a kind of automatically measuring diameter of steel tube method, carrying roller group 1 drives rotation by motor 2 by reductor 3, the rotation of carrying roller group 1 is by electrical control gear 4 controls, steel pipe 5 to be cut is placed on the carrying roller group 1, drive steel pipe 5 rotations by carrying roller, a kind of automatically measuring diameter of steel tube method is:
The first step. digital pulse generator, counter, arithmetic element are installed in original electrical control gear 4, and digital pulse generator links to each other with motor 2, and digital pulse generator is connected with counter, and counter is connected with arithmetic element;
Second step. settle on one side and can a contactless magnetic induction sensor 7 be installed on aid measuring pole 8 at steel pipe 5 along aid measuring pole 8 removable on carrying roller group 1 length direction and the location;
The 3rd step. want any one position on the circumference of cut place at steel pipe 5, put ferric induction head 6, ferric induction head 6 is by operator loading and unloading, and the operator is placed on any one position on the circumference that steel pipe will cut to it in the time of measuring, measure finish after it take off be placed in the tool magazine standby;
The 4th step. press motor 2 control buttons, start steel pipe 5 and rotate, when ferric induction head 6 process magnetic induction sensors 7, can produce a signal towards a direction, this signal inserts the counter in the electrical control gear 4, and counter begins the umber of pulse that the accumulative total digital pulse generator produces.Steel pipe 5 continues rotation, when ferric induction head process magnetic induction sensor 76 second time, produce second signal, this signal inserts the counter in the electrical control gear 4, counter stops the umber of pulse that the accumulative total digital pulse generator produces, the counter bulk registration umber of pulse that between two signals, produces of digital pulse generator, motor shuts down automatically, steel pipe 5 stops the rotation;
The 5th step. arithmetic element calculates the actual diameter of steel pipe 5 according to the umber of pulse of the digital pulse generator generation of counter records, and measurement is finished.Demonstrate steel pipe 5 diameters of measurement on the display, this numerical value is simultaneously as setting value input electrical control gear 4, the operation of control cutting machine.In brief, load and unload one time ferric induction head 8, click action button, measure the operation of steel pipe 5 actual diameters and just finished automatically.
The present invention at first is used for a large-diameter steel pipe intersection-line cutting machine, and this cutting machine can cutting diameter be the steel pipe of 800mm-1500mm.
After machinery and electrical equipment manufacturing assembling, service check, test have been carried out in manufactory.Prepared the steel pipe of an actual diameter specially, as model through accurately measuring, demarcating.Utilize this model steel pipe on apparatus of the present invention, to measure test, proofread and correct.Apparatus of the present invention are used for other diameter of steel tube and measure then, and each root steel pipe also carries out manual measurement simultaneously, and the numerical value of automatic measurement and manual measurement has all been carried out record, comparison.The result shows that the numerical value deviation range that apparatus of the present invention are measured diameter of steel tube is 0.4mm-1.5mm, manual measurement should be 1mm-4.5mm mutually, be respectively 0.95% and 2.75% corresponding to the ratio of nominal (name) diameter.Dispersion is smaller.Carried out the steel pipe cutting test afterwards.Adopt apparatus of the present invention measure automatically diameter of steel tube, and cut setting value (correction) automatically, cutting process normally carries out, the cut lengths precision reaches standard-required.Measure the contrast of operation: people's operation of apparatus of the present invention, clearly convenient and efficient.
Claims (1)
1. the method for an automatically measuring diameter of steel tube, carrying roller group (1) drives rotation by motor (2) by reductor (3), the rotation of carrying roller group (1) is controlled by electrical control gear (4), steel pipe to be cut (5) is placed on the carrying roller group (1), drive steel pipe (5) rotation by carrying roller, it is characterized in that its method is:
The first step. digital pulse generator, counter, arithmetic element are installed in original electrical control gear (4), and digital pulse generator links to each other with motor (2), and digital pulse generator is connected with counter, counter and arithmetic element;
Second step. settle and can go up an installation contactless magnetic induction sensor (7) at aid measuring pole (8) on steel pipe (5) one side along aid measuring pole (8) removable on carrying roller group (1) length direction and the location
The 3rd step. want any one position on the circumference of cut place at steel pipe (5), put ferric induction head (6);
The 4th step. press motor (2) control button, starting steel pipe (5) rotates towards a direction, when ferric induction head (6) process magnetic induction sensor (7), can produce a signal, this signal inserts the counter in the electrical control gear (4), counter begins the umber of pulse that accumulative total produces in the digital pulse generator, steel pipe (5) continues rotation, when ferric induction head (6) the process magnetic induction sensor second time (7), produce second signal, this signal inserts the counter in the electrical control gear (4), counter stops the umber of pulse that the accumulative total digital pulse generator produces, the counter bulk registration umber of pulse that between two signals, produces of digital pulse generator, motor shuts down automatically, steel pipe 5 stops the rotation;
The 5th step. arithmetic element calculates the actual diameter of steel pipe (5) according to the umber of pulse of the digital pulse generator generation of counter records, and measurement is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810038141A CN100588502C (en) | 2008-05-28 | 2008-05-28 | Process for automatically measuring diameter of steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810038141A CN100588502C (en) | 2008-05-28 | 2008-05-28 | Process for automatically measuring diameter of steel tube |
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| Publication Number | Publication Date |
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| CN101284360A true CN101284360A (en) | 2008-10-15 |
| CN100588502C CN100588502C (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810038141A Expired - Fee Related CN100588502C (en) | 2008-05-28 | 2008-05-28 | Process for automatically measuring diameter of steel tube |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848264A (en) * | 2012-10-17 | 2013-01-02 | 唐山开元自动焊接装备有限公司 | Device for positioning flange hole of steel tube intersection line cutting machine |
| CN102890475A (en) * | 2012-09-21 | 2013-01-23 | 江苏高精机电装备有限公司 | Method for measuring and compensating surface profile error of large rotary body part in real time |
| CN103586492A (en) * | 2013-11-26 | 2014-02-19 | 马鞍山马钢晋西轨道交通装备有限公司 | Non-contact type measuring system for train axle wheel seat and measuring method thereof |
| CN105593634A (en) * | 2013-08-12 | 2016-05-18 | 维克托里克公司 | Method and device for forming grooves in pipe elements |
| CN106802130A (en) * | 2017-02-20 | 2017-06-06 | 深圳怡化电脑股份有限公司 | For rolling up measuring method and measuring system of the paper money with precision |
| CN113400096A (en) * | 2021-07-19 | 2021-09-17 | 江苏中车电机有限公司 | Measuring method for outer diameter machining of large motor stator core |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4397194A (en) * | 1981-04-07 | 1983-08-09 | Fischer & Porter Company | Ultrasonic flowmeter including means to measure pipe geometry |
| CN1027921C (en) * | 1992-02-27 | 1995-03-15 | 清华大学 | On-line diameter measurement of pipes and wires by laser method |
-
2008
- 2008-05-28 CN CN200810038141A patent/CN100588502C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890475A (en) * | 2012-09-21 | 2013-01-23 | 江苏高精机电装备有限公司 | Method for measuring and compensating surface profile error of large rotary body part in real time |
| CN102890475B (en) * | 2012-09-21 | 2015-08-19 | 江苏高精机电装备有限公司 | Large revolving body piece surface profile errors is measured and real-time compensation method |
| CN102848264A (en) * | 2012-10-17 | 2013-01-02 | 唐山开元自动焊接装备有限公司 | Device for positioning flange hole of steel tube intersection line cutting machine |
| CN102848264B (en) * | 2012-10-17 | 2014-05-14 | 唐山开元自动焊接装备有限公司 | Device for positioning flange hole of steel tube intersection line cutting machine |
| CN105593634A (en) * | 2013-08-12 | 2016-05-18 | 维克托里克公司 | Method and device for forming grooves in pipe elements |
| US10449589B2 (en) | 2013-08-12 | 2019-10-22 | Victaulic Company | Method and device for forming grooves in pipe elements |
| CN103586492A (en) * | 2013-11-26 | 2014-02-19 | 马鞍山马钢晋西轨道交通装备有限公司 | Non-contact type measuring system for train axle wheel seat and measuring method thereof |
| CN103586492B (en) * | 2013-11-26 | 2015-12-30 | 马鞍山马钢晋西轨道交通装备有限公司 | Railroad car axle wheel seat diameter contactless measuring system and measuring method thereof |
| CN106802130A (en) * | 2017-02-20 | 2017-06-06 | 深圳怡化电脑股份有限公司 | For rolling up measuring method and measuring system of the paper money with precision |
| CN113400096A (en) * | 2021-07-19 | 2021-09-17 | 江苏中车电机有限公司 | Measuring method for outer diameter machining of large motor stator core |
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| CN100588502C (en) | 2010-02-10 |
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