CN101451804B - Steel bending radius measurement method and apparatus - Google Patents
Steel bending radius measurement method and apparatus Download PDFInfo
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- CN101451804B CN101451804B CN2007101586509A CN200710158650A CN101451804B CN 101451804 B CN101451804 B CN 101451804B CN 2007101586509 A CN2007101586509 A CN 2007101586509A CN 200710158650 A CN200710158650 A CN 200710158650A CN 101451804 B CN101451804 B CN 101451804B
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- ball bar
- bar ruler
- guide rod
- steel
- fixed support
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a steel bending radius measuring method and a steel bending radius measuring device. The method comprises: a ball bar ruler is used to measure the deformation amount in the steel hot-bending processing; a ball bar ruler transmitter sends measured signals to a numbered card; then a real steel bending radius is determined via calculation program. The device comprises: a ball bar ruler fixed support, which is perpendicular to the feed direction of the steel to be arranged, wherein a protection plate is arranged on the periphery of the ball bar ruler fixed support; a detection wheel which is directly contacted with the measured steel and is arranged on a guide rod; the guide rod, wherein a linear bearing is arranged on the guide rod, the detection wheel is arranged in the front-end of the guide rod, the back-end of the guide rod is connected with one end of a chain, and the other end of the chain is connected with a heavy hammer via a sprocket wheel fixed on the ball bar ruler fixed support; a double guiding axle fixed on the ball bar ruler fixed support; the ball bar ruler which is arranged on the machine tool body via the ball bar ruler fixed support and is connected in a sliding way with the guide rod via a transmitter slide block and a connection board; the linear bearing which is connected in a sliding way with the double guiding axle; the heavy hammer which exerts a traction force pointing to the steel direction for the guiding rod. The invention is characterized by high measuring accuracy.
Description
Technical field
The present invention relates to a kind of technology of measuring steel bending radius, particularly relate to a kind of steel bending radius measurement method and the device that can eliminate the bounce-back of steel material.
Background technology
The measuring method that steel material hot bending machining tool generally adopts at present is: the displacement transducer of measuring the distortion of steel material is installed in the hydraulic servo oil cylinder homonymy, and with the piston interlock of hydraulic servo oil cylinder.Because the steel material can produce certain bounce-back after heating, distortion, cooling, the size of rebound amount can't detect, thereby has influenced the machining precision of steel material.In order to improve the precision that bends of steel material, develop a kind of method and the isolated plant that can eliminate the measurement steel bending radius of steel material bounce-back influence, be present problem demanding prompt solution.
Summary of the invention
The purpose of this invention is to provide a kind of steel bending radius measurement method and the device that can eliminate steel material bounce-back influence.
Technical scheme of the present invention is achieved in that
Measuring method:
Measure the deflection of steel material with ball bar ruler, the ball bar ruler transmitter becomes the conversion of signals of measuring to deliver to behind the TTL square-wave pulse and is installed on the numbered card that has the plus-minus counting function in the industrial computer, calculates the actual radius that bends of tapping material again by funtcional relationship.
Described calculation procedure flow process is:
Initiation parameter at first: 1/2nd chord length L, detection wheel radius r
1, ball bar ruler resolution u; Read in ball bar ruler count value CH1_CNT (count value of first passage on the numbered card) then; Calculate ball bar ruler displacement x, calculate the radius r that bends of steel material again
2Show the steel bending radius value at last,, then turn back to the count value step of reading in the ball bar ruler transmitter if continue to measure, otherwise termination routine.
Wherein said ball bar ruler displacement x=CH1_CNT*u; Described steel bending radius is r
2=(L
2+ 2*x*r
1+ x
2)/(2*x).
Its device comprises:
Ball bar ruler fixed support is installed the peripheral hardware protective shield with the direction of feed of steel material is vertical;
Detection wheel directly contacts with tested steel material, is installed on the guide rod, is used to detect the deflection of steel material;
Guide rod which is provided with linear bearing, and front end is provided with detection wheel, and the rear end connects through chain one end, and the sprocket wheel of the chain other end through being fixed on the ball bar ruler fixed support is connected with weight;
Two axis of guides are fixed on the ball bar ruler fixed support;
Ball bar ruler is located on the bed piece by ball bar ruler fixed support; And slide by the transmitter slide block, through web joint and guide rod and to link to each other;
Linear bearing is slidingly connected with two axis of guides;
Weight applies the tractive force that points to steel material direction to guide rod, guarantees that the detection wheel of guide rod front end contacts reliably with the steel material.
The present invention has following advantage:
1. the present invention is simple in structure, measure easy to use, the measuring accuracy height (measuring error dr＜± 1mm), because steel material radius pick-up unit is positioned at the opposite side of steel material building mortion, therefore can effectively eliminate the steel material and add the measuring error that the thermal deformation bounce-back causes, remedied the deficiency of raw steel material hot bending machining tool measuring accuracy aspect, used when being fit to bend various naval vessels rib or circular arc steel material.
2. the present invention can show the steel bending radius value in real time on industrial computer, cooperates Hydrauservo System to finish high precision steel material bending process.
Description of drawings
Fig. 1-1 is the isolated plant machine drawing of the inventive method.
Fig. 1-2 is linear bearing 12 plan views among Fig. 1-1.
Fig. 1-3 is the side view of Fig. 1-1.
Fig. 1-4 is the three-dimensional view of Fig. 1-1.
Fig. 2 is the measuring principle figure of the inventive method.
Fig. 3 is the calculation procedure process flow diagram of the inventive method.
Embodiment
Describe the present invention in detail below in conjunction with following examples and accompanying drawing.
Measuring method of the present invention: the deflection that detects the steel material with ball bar ruler, described ball bar ruler becomes the TTL square-wave pulse to deliver to the numbered card that has add-minus function in the industrial computer conversion of signals of measuring by the transmitter on it, calculates actual steel bending radius by funtcional relationship again; Described numbered card is inserted on the ISA expansion slot in the industrial computer and is connected with transmitter on the ball bar ruler by the DB25 interface; Described steel bending radius computing formula is: r
2=(L
2+ x
2+ 2*x*r
1)/(2*x), wherein: L is 1/2nd chord lengths, x is the ball bar ruler displacement, r
1Be the detection wheel radius.
As shown in Figure 3, described calculation procedure flow process is:
Initiation parameter at first: 1/2nd chord length L=630 (mm), detection wheel radius r
1=25 (mm), ball bar ruler resolution u=0.001 (mm); Read in ball bar ruler count value CH1_CNT (count value of first passage on the numbered card), calculate ball bar ruler displacement x=CH1_CNT*u; Calculate steel bending radius r again
2=(L
2+ x
2+ 2*x*r
1)/(2*x); Show the steel bending radius value then; As continue to measure then to turn back to read in ball bar ruler count value CH1_CNT (count value of first passage on the numbered card), otherwise termination routine.Steel bending radius measurement range of the present invention can be 1500mm～6000mm.
The inventive method equipment therefor, as Fig. 1-1,1-2,1-3, shown in the 1-4, form by ball bar ruler fixed support 1, detection wheel 2, guide rod 3, two axis of guide 4, sprocket wheel 5, chain 6, weight 7, ball coral chi 8, web joint 9, ball bar ruler transmitter slide block 10, protective shield 11, linear bearing 12, ball bar ruler fixed support 1 is fixed on the bed piece, and it is vertical with the direction of feed of steel material, ball bar ruler 8 is installed on the ball bar ruler fixed support 1, ball bar ruler transmitter slide block 10 is connected with ball bar ruler 8 bottoms, and can slide along ball bar ruler 8.Ball bar ruler transmitter slide block 10 links to each other with guide rod 3 through web joint 9.Linear bearing 12 is housed on the guide rod 3, and linear bearing 12 is sleeved on two axis of guides 4, and can be free to slide along two axis of guides 4, and two axis of guides 4 are fixed on the ball bar ruler fixed support 1.Guide rod 3 front ends are equipped with detection wheel 2, and detection wheel 2 directly contacts with tested steel material, is used to detect the deflection of steel material.Guide rod 3 lower ends and the riveted joint of chain 6 one ends, chain 6 other ends are through being fixed on the sprocket wheel 5 and weight 7 riveted joints on the ball bar ruler fixed support 1, weight 7 is under the effect of gravity, guide rod 3 is applied the tractive force that points to steel material direction, the detection wheel 2 that guarantees guide rod 3 front ends contacts reliably with the steel material, and ball bar ruler transmitter slide block 10 is connected to the numbered card that is inserted in the industrial computer through shielded cable.
Wherein: derivation steel bending radius computing formula:
As shown in Figure 2, the radius that bends of establishing the steel material is r
2, L is 1/2nd chord lengths, x is the ball bar ruler displacement, in right-angle triangle ABO, by Pythagorean theorem, (r is arranged then
2-r
1)
2=L
2+ (r
2-x-r
1)
2, solve r
2,
r
2＝(L
2+x
2+2*r
1*x)/(2*x) (1)
Formula (1) is the steel bending radius computing formula.
See its measuring process by structure of the present invention:
When the steel material deformed, because detection wheel 2 of the present invention is close to tested steel material, detection wheel 2 connected guide rod 3 and bounces back together, and the size of amount of recovery depends on the radius that bends of steel material, and promptly steel bending radius is more little, and amount of recovery is big more.The effect of weight 7 makes detection wheel 2 hold out against the steel material.The size of amount of recovery converts the TTL square-wave pulse signal to by ball bar ruler transmitter 10 and delivers to the numbered card that has the plus-minus counting function in the industrial computer, is converted into ball bar ruler displacement x value, calculates steel bending radius r according to the steel bending radius computing formula then
2Value.
The present invention is installed numbered card additional in industrial computer ISA expansion slot and is detected the steel material and bend deflection in the process, and described numbered card adopts PCL-833 (Hua company is ground in Taiwan), and it is 3 channel pulse input cards, and can carry out plus-minus counting, and interface shape is DB25.The ball bar ruler transmitter links to each other with the DB25 mouth of PCL-833 numbered card, and the ball bar ruler transmitter connects the 1st passage of numbered card.
Ball bar ruler: SGC-5 range 500mm (TTL output), Changchun ray machine digital display company limited produces.
Claims (2)
1. steel bending radius measurement mechanism is characterized in that comprising:
Ball bar ruler fixed support (1) is installed with the direction of feed of steel material is vertical, peripheral hardware protective shield (11);
Detection wheel (2) directly contacts with the steel material, is installed on the guide rod (3), is used to detect the deflection of steel material;
Guide rod (3) which is provided with linear bearing (12), and front end is provided with detection wheel (2), and the rear end connects through chain (6) one ends, and the sprocket wheel (5) of chain (6) other end through being fixed on the ball bar ruler fixed support (1) is connected with weight (7);
Two axis of guides (4) are fixed on the ball bar ruler fixed support (1);
Ball bar ruler (8) is located on the bed piece by ball bar ruler fixed support (1); And by ball bar ruler transmitter slide block (10), link to each other through the slip of web joint (9) and guide rod (3);
Linear bearing (12) is slidingly connected with two axis of guides (4);
Weight (7) applies the tractive force that points to steel material direction to guide rod (3), guarantees that the detection wheel (2) of guide rod (3) front end contacts reliably with the steel material.
2. according to the described device of claim 1, it is characterized in that: ball bar ruler transmitter slide block (10) is connected to the numbered card that is inserted in the industrial computer through shielded cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101586509A CN101451804B (en) | 2007-11-30 | 2007-11-30 | Steel bending radius measurement method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101586509A CN101451804B (en) | 2007-11-30 | 2007-11-30 | Steel bending radius measurement method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451804A CN101451804A (en) | 2009-06-10 |
| CN101451804B true CN101451804B (en) | 2010-08-25 |
Family
ID=40734180
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101586509A Expired - Fee Related CN101451804B (en) | 2007-11-30 | 2007-11-30 | Steel bending radius measurement method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452293B (en) * | 2007-11-30 | 2010-10-13 | 中国科学院沈阳自动化研究所 | Follow-up riding wheel measurement control method and special equipment thereof |
| CN101829902B (en) * | 2009-06-18 | 2011-12-14 | 中汽成都配件有限公司 | Axial self-centering end face milling and center hole drilling numerical control machine tool |
| CN107946054A (en) * | 2017-11-07 | 2018-04-20 | 苏州科爱佳自动化科技有限公司 | A kind of regulator of rotor adjustable angle |
| CN107946056A (en) * | 2017-11-07 | 2018-04-20 | 苏州科爱佳自动化科技有限公司 | A kind of adjustable transformer based on angular displacement ball bar control angle |
| CN107946055A (en) * | 2017-11-07 | 2018-04-20 | 苏州科爱佳自动化科技有限公司 | A kind of dual-rotor structure regulator based on Angular displacement control |
| CN108225155B (en) * | 2018-02-01 | 2023-07-04 | 中车株洲电机有限公司 | Measuring tool and method suitable for large-size radius |
| CN110360971B (en) * | 2019-06-29 | 2021-07-02 | 日照钢铁控股集团有限公司 | Linear displacement metering device |
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|---|---|---|---|---|
| CN1243943A (en) * | 1998-07-31 | 2000-02-09 | 中国科学院沈阳自动化研究所 | Method and equipment for measuring and calculating curvature radius of quenched bent rib |
| CN1278056A (en) * | 1999-06-16 | 2000-12-27 | 中国科学院沈阳自动化研究所 | Method for measuring curvature radius of large dimension bent quenched rib |
| CN1464282A (en) * | 2002-06-25 | 2003-12-31 | 中国科学院沈阳自动化研究所 | Curvature radius measuring method and apparatus therefor |
| US6912478B1 (en) * | 2003-08-12 | 2005-06-28 | Allen Face And Company, Lc | System for collecting data used by surface profiling scheme |
| CN201107025Y (en) * | 2007-11-30 | 2008-08-27 | 中国科学院沈阳自动化研究所 | Steel material bending radius measuring device |
-
2007
- 2007-11-30 CN CN2007101586509A patent/CN101451804B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243943A (en) * | 1998-07-31 | 2000-02-09 | 中国科学院沈阳自动化研究所 | Method and equipment for measuring and calculating curvature radius of quenched bent rib |
| CN1278056A (en) * | 1999-06-16 | 2000-12-27 | 中国科学院沈阳自动化研究所 | Method for measuring curvature radius of large dimension bent quenched rib |
| CN1464282A (en) * | 2002-06-25 | 2003-12-31 | 中国科学院沈阳自动化研究所 | Curvature radius measuring method and apparatus therefor |
| US6912478B1 (en) * | 2003-08-12 | 2005-06-28 | Allen Face And Company, Lc | System for collecting data used by surface profiling scheme |
| CN201107025Y (en) * | 2007-11-30 | 2008-08-27 | 中国科学院沈阳自动化研究所 | Steel material bending radius measuring device |
Non-Patent Citations (3)
| Title |
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| JP特开2001-317907A 2001.11.16 |
| 刘兴富.数显圆弧半径测量仪.机械工业标准化与质量 11.2005,(11),25-27. |
| 刘兴富.数显圆弧半径测量仪.机械工业标准化与质量 11.2005,(11),25-27. * |
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|---|---|
| CN101451804A (en) | 2009-06-10 |
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