CN102764795B - Steel hot bend orifice roundness calibration system and its method - Google Patents
Steel hot bend orifice roundness calibration system and its method Download PDFInfo
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- CN102764795B CN102764795B CN201210103487.7A CN201210103487A CN102764795B CN 102764795 B CN102764795 B CN 102764795B CN 201210103487 A CN201210103487 A CN 201210103487A CN 102764795 B CN102764795 B CN 102764795B
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Abstract
The application relates to a steel hot bend orifice roundness calibration system which comprises a hydraulic cylinder with a roundness calibration device and a double-piston rod, a hydraulic control system and a laser measurement and control system for controlling outreach distance and retraction time of the hydraulic cylinder. The laser measurement and control system comprises a laser sensor and a laser measure and control instrument. The laser sensor is arranged on the hydraulic cylinder and used for measuring the distance from the position of the laser sensor to the tube wall. The laser measure and control instrument is connected with the laser sensor and used to send a control instruction to the hydraulic control system depending on the distance measured by the laser sensor. The hydraulic control system is used to control the hydraulic cylinder to calibrate roundness of the orifice according to the control instruction. The application also provides a steel hot bend orifice roundness calibration method. According to the application, the outreach distance and retraction time of the hydraulic cylinder can be accurately controlled and real-time measurement and controlling of the steel hot bend orifice roundness calibration can be realized.
Description
Technical field
The application relates to oil and gas pipes processing and field of measuring technique, particularly a kind of steel hot-bending bends mouth of pipe circularity calibration system and method thereof.
Background technology
Steel hot-bending bends loses round (oval) phenomenon because mouth of pipe clamping and its internal stress effect meeting make mouth of pipe appearance after stewing has been made, and causes the presentation quality of bend pipe defective, and bend pipe needs to carry out mouth of pipe correction processing after bending for this reason.Common domestic employing jack or employing Hydraulic Station are controlled the modes such as hydraulic cylinder and are carried out school circle processing, and every correction once, is carried out one-shot measurement with straight steel ruler or micrometer; As defective, then carry out once school circle operation and measure, until mouth of pipe circularity is qualified.Artificial school is round and measure not only inefficiency, and labour intensity is high, and is prone to human error and measure error.
Summary of the invention
The application provides a kind of steel hot-bending bends mouth of pipe circularity calibration system and method thereof that improves school circle accuracy rate and school circle efficiency.
The application provides a kind of steel hot-bending bends mouth of pipe circularity calibration system, comprises hydraulic cylinder with school round belting and double piston-rod, hydraulic control system, for controlling outreach and the laser TT&C system on the opportunity of retraction of described hydraulic cylinder; Described laser TT&C system comprises laser sensor, laser controller, hydraulic control system; Described laser sensor is arranged on described hydraulic cylinder, for measuring the distance of the positional distance tube wall at laser sensor place; Described laser controller is connected with described laser sensor, according to the judgement of described laser sensor measuring distance is sent to control instruction to described hydraulic control system; Described hydraulic control system is controlled described hydraulic cylinder line up circularity according to described control instruction and is calibrated.
The application also provides steel hot-bending bends mouth of pipe circularity calibration steps, comprising:
Described hydraulic cylinder is placed in to center in the bend pipe mouth of pipe;
By described laser sensor, gather the distance of the positional distance tube wall at laser sensor place;
Judgement according to described laser controller to described distance, sends control instruction to described hydraulic control system;
By described hydraulic control system, controlling described hydraulic cylinder line up circularity calibrates.
A kind of steel hot-bending bends mouth of pipe circularity calibration system and method thereof that the application provides, by laser controller, the measuring-signal of laser sensor is received, analyzed, and send instruction to hydraulic controller, Hydraulic Station is turned round according to instruction, thereby accurately control outreach and retraction opportunity of hydraulic cylinder, realize the real-time observing and controlling of steel hot-bending bends mouth of pipe circularity calibration.
Accompanying drawing explanation
The front view of the steel hot-bending bends mouth of pipe circularity calibration system that Fig. 1 provides for the embodiment of the present application.
The left view of the steel hot-bending bends mouth of pipe circularity calibration system that Fig. 2 provides for the embodiment of the present application.
Schematic diagram before the steel fire bending pipe mouth of pipe circularity that Fig. 3 provides for the embodiment of the present application is calibrated.
Schematic diagram in the steel fire bending pipe mouth of pipe circularity calibration that Fig. 4 provides for the embodiment of the present application.
Schematic diagram after the steel fire bending pipe mouth of pipe circularity that Fig. 5 provides for the embodiment of the present application is calibrated.
The specific embodiment
As shown in Fig. 1～2, a kind of steel hot-bending bends mouth of pipe circularity calibration system that the embodiment of the present application provides, comprises hydraulic cylinder 6 with school round belting (top cap 5) and double piston-rod, hydraulic control system 8, for controlling outreach and the laser TT&C system 10 on the opportunity of retraction of described hydraulic cylinder 6.Wherein, laser TT&C system 10 comprises laser sensor 3, laser controller 2.Laser sensor is arranged on hydraulic cylinder 6, for measuring the distance of the positional distance tube wall at laser sensor 3 places; Described laser controller 3 is connected with described laser sensor 3, according to the judgement of described laser sensor 3 measuring distances is sent to control instruction to described hydraulic control system 8; Described hydraulic control system 8 is controlled described hydraulic cylinder 6 line up circularity according to described control instruction and is calibrated.
The number of laser sensor 3 is 2, and laser sensor 3 is fixed on hydraulic cylinder 6 by a fixed support 4 respectively.At hydraulic cylinder two ends, set up a school round belting (top cap 5) separately; Described school round belting comprises a jacking block and arc piece; Described piston rod is connected with described arc piece by described jacking block.Laser controller 3 comprises receiver module, computing module, control module and sending module.Wherein, receiver module receives the range data that laser sensor sends; Computing module calculates according to described range data the real-time size that school diameter is long; Control module compares the real-time size of described school diameter length and default cylinder scale cun, and when fiducial value equates, generates reverse control instruction; Sending module is sent to described hydraulic control system by described reverse control instruction.
School circle process as in Figure 3-5, hydraulic cylinder 6 is positioned at the bend pipe mouth of pipe 1 inside center, the top cap 5 that the double piston-rod at hydraulic cylinder 6 two ends is installed is over against the minimum place of the mouth of pipe 1 path length, double piston-rod stretches out line up 1 and pushes up expansion, until reach correction size, now receive immediately school circle contracting hydraulic cylinder 6 double piston-rods, the mouth of pipe 1 resilience, reaches the mouth of pipe 1 circularity dimensional requirement.
If the distance between two laser sensors 3 is L (L > 0), the distance to tube wall that they are measured is respectively L1 and L2, and the mouth of pipe 1 path length that this side up is L+L1+L2.Before school circle, first default one proofread and correct sized data A and deposit in laser controller 2, send instruction and to hydraulic control system 8, control Hydraulic Stations 7 and provide pressure for school circle hydraulic cylinder 6, double piston-rod stretches out, and the 1 inwall effect of 5 pairs of bend pipe mouths of pipe of top cap starts school circle.In the circle process of school, the sized data by L1 and L2 that laser sensor 3 can be real-time is measured, and issues Laser Measuring control device 2 and calculate, and draws the real-time size of the long L+L1+L2 of school diameter.Before these data (L+L1+L2) equal school circle in laser controller 2 during default data A, laser controller 2 sends reverse instruction to hydraulic control system 8, thereby control Hydraulic Station 7 and act on school circle hydraulic cylinder 6, bidirectional piston bar is retracted, and completes school sired results and does.
After school sired results completes, can be gone for a stroll and be managed the mouth of pipe 1 central rotation by rotating mechanism high-ranking officers circle hydraulic cylinder 6, laser controller 2 can be measured in real time 360 of the bend pipe mouth of pipe 1 and spend diameter in directions, whether qualifiedly detects the mouth of pipe 1 circularity.If have defectively, can repeat to repair with colonel circle process, until the mouth of pipe 1 circularity is up to standard.
Below in conjunction with an embodiment, do the application to be further elaborated:
The caliber of this steel fire bending pipe is 1016mm, and thickness is 28mm; School circle hydraulic cylinder 6 cylinder diameters are 140mm, and stroke is two-way each 100mm, is placed in the interior center of the bend pipe mouth of pipe 1; Two laser sensors 3 are selected FT50RLA-220-L8, by fixed support 4, be installed on school circle hydraulic cylinder 6, distance for L be 820mm, before justify in school, measure them and be respectively L1 and L2 is respectively 60mm to the distance of tube wall, the mouth of pipe 1 path length that this side up is L+L1+L2=940mm.
Before the circle of school, first the default size A=1000mm that proofreaies and correct deposits in laser controller 2, it is CP1H-XA40 that laser controller 2 is selected PLC model, it sends instruction and to hydraulic control system 8, controls Hydraulic Stations 7 and provide pressure for school circle hydraulic cylinder 6, double piston-rod stretches out, and the 1 inwall effect of 5 pairs of bend pipe mouths of pipe of top cap starts school circle.
In school circle process, laser sensor 3 can be real-time by the dimensional measurement of L1 and L2 out.Laser controller 2, in order to receive the sized data (L1, L2) sending from laser sensor 3 and to calculate, draws the real-time size (L+L1+L2) that school diameter is long.Before these data (L+L1+L2) equal school circle in laser controller 2 during default data A=1000mm, laser controller 2 sends reverse instruction to hydraulic control system 8, thereby control Hydraulic Station 7 and act on school circle hydraulic cylinder 6, bidirectional piston bar is retracted, after mouth of pipe resilience, recording this direction internal diameter is 962mm, this internal diameter numerical value, in the error range allowing, meets circularity requirement.
Finally by rotating mechanism high-ranking officers circle hydraulic cylinder 6, gone for a stroll and managed the mouth of pipe 1 central rotation, whether the mouth of pipe 1 circularity detecting in all directions is qualified.If have defectively, can repeat to repair with colonel circle process, until the mouth of pipe 1 circularity is up to standard.
It should be noted last that, the above specific embodiment is only in order to the application's technical scheme to be described and unrestricted, although the application is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the application's technical scheme, and not departing from the spirit and scope of present techniques scheme, it all should be encompassed in the middle of the application's claim scope.
Claims (5)
1. a steel hot-bending bends mouth of pipe circularity calibration system, is characterized in that, comprises hydraulic cylinder with school round belting and double piston-rod, hydraulic control system, for controlling outreach and the laser TT&C system on the opportunity of retraction of described hydraulic cylinder; Described laser TT&C system comprises laser sensor, laser controller; Described laser sensor is arranged on described hydraulic cylinder, for measuring the distance of the positional distance tube wall at laser sensor place; Described laser controller is connected with described laser sensor, according to the judgement of described laser sensor measuring distance is sent to control instruction to described hydraulic control system; Described hydraulic control system is controlled described hydraulic cylinder line up circularity according to described control instruction and is calibrated;
The number of described laser sensor is 2, and described laser sensor is fixed on described hydraulic cylinder by a fixed support respectively; At described hydraulic cylinder two ends, set up a described school round belting separately; Described school round belting comprises a jacking block and arc piece; Described piston rod is connected with described arc piece by described jacking block; Also comprise Hydraulic Station, described hydraulic control system is connected with described hydraulic cylinder by described Hydraulic Station; Described laser controller comprises:
Receiver module, receives the range data that laser sensor sends;
Computing module, calculates according to described range data the real-time size that school diameter is long;
Control module, compares the real-time size of described school diameter length and default cylinder scale cun, and when fiducial value equates, generates reverse control instruction;
Sending module, is sent to described hydraulic control system by described reverse control instruction.
2. the steel hot-bending bends mouth of pipe circularity calibration steps based on calibration system claimed in claim 1, is characterized in that, comprising:
Described hydraulic cylinder is placed in to center in the bend pipe mouth of pipe;
By described laser sensor, gather the distance of the positional distance tube wall at laser sensor place;
Judgement according to described laser controller to described distance, sends control instruction to described hydraulic control system;
By described hydraulic control system, controlling described hydraulic cylinder line up circularity calibrates.
3. calibration steps according to claim 2, is characterized in that, describedly according to described laser controller, the judgement of described distance is comprised:
By described laser controller, receive the range data that described laser sensor sends, and calculate according to described range data the real-time size that school diameter is long;
By the long real-time size of the more described school of described laser controller diameter and default correction size, and when fiducial value equates, generate reverse control instruction.
4. calibration steps according to claim 2, is characterized in that, described according to described laser controller to also comprising before the judgement of described distance:
Default correction size is deposited in laser controller.
5. according to the calibration steps described in claim 2 or 4, it is characterized in that, describedly by described hydraulic control system, control described hydraulic cylinder line up circularity and calibrate and be:
Be by hydraulic control system, to control a Hydraulic Station to act on described hydraulic cylinder, thereby control in hydraulic cylinder bidirectional piston bar outreach and retraction opportunity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103487.7A CN102764795B (en) | 2012-04-09 | 2012-04-09 | Steel hot bend orifice roundness calibration system and its method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210103487.7A CN102764795B (en) | 2012-04-09 | 2012-04-09 | Steel hot bend orifice roundness calibration system and its method |
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| CN102764795A CN102764795A (en) | 2012-11-07 |
| CN102764795B true CN102764795B (en) | 2014-11-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103706670B (en) * | 2013-12-12 | 2015-12-09 | 中铁十四局集团有限公司 | Super-large-diameter shield machine shield tail circular arc degree straightened up in place device |
| CN104439883A (en) * | 2014-11-29 | 2015-03-25 | 重庆三贵机械制造有限公司 | Crankshaft correction device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3625046A (en) * | 1969-10-29 | 1971-12-07 | Brammall Inc | Apparatus and method for straightening deformed rolls of sheet stock |
| US3961516A (en) * | 1975-01-08 | 1976-06-08 | Priester Jack E | Apparatus and method for re-forming and maintaining the circular shape of a deformed roll of material |
| CN201728250U (en) * | 2010-07-27 | 2011-02-02 | 定州市金华蓝天汽车零部件有限公司 | Rounding machine for large ring pieces |
| KR101095929B1 (en) * | 2009-06-03 | 2011-12-19 | 주식회사 스틸플라워 | Device for correcting round of large caliber steel pipe |
| CN202779273U (en) * | 2012-04-09 | 2013-03-13 | 中国石油天然气集团公司 | Orifice roundness calibration system for steel hot bends |
-
2012
- 2012-04-09 CN CN201210103487.7A patent/CN102764795B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3625046A (en) * | 1969-10-29 | 1971-12-07 | Brammall Inc | Apparatus and method for straightening deformed rolls of sheet stock |
| US3961516A (en) * | 1975-01-08 | 1976-06-08 | Priester Jack E | Apparatus and method for re-forming and maintaining the circular shape of a deformed roll of material |
| KR101095929B1 (en) * | 2009-06-03 | 2011-12-19 | 주식회사 스틸플라워 | Device for correcting round of large caliber steel pipe |
| CN201728250U (en) * | 2010-07-27 | 2011-02-02 | 定州市金华蓝天汽车零部件有限公司 | Rounding machine for large ring pieces |
| CN202779273U (en) * | 2012-04-09 | 2013-03-13 | 中国石油天然气集团公司 | Orifice roundness calibration system for steel hot bends |
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Effective date of registration: 20170301 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau |