A sizing control method for large round bars
A control method and bar technology, which is applied in the direction of manufacturing tools, metal processing machinery parts, measuring/indicating equipment, etc., can solve the problem of harsh measurement position positioning, and achieve the effect of eliminating measurement errors and remarkable results
Active Publication Date: 2017-11-21
SHANDONG IRON & STEEL CO LTD
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- Description
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Problems solved by technology
Due to the lateral or longitudinal displacement of the measurement positioning point at different times, the lateral distance measurement method is obviously affected by different lengths, which will generate a calculation variable error △x, which is more demanding on the positioning of the measurement position
Method used
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Embodiment 1
[0033] 1) Calibrate the distance between the initial measurement point and the measurement point X=17030mm, set the length of the large bar P=5600mm, according to the different moving speeds of the roller table e={0.25m / min, 0.28m / min , 0.30m / min, 0.33m / min, 0.35m / min}, respectively get the error set △a n = {8mm, 10mm, 12mm, 15mm, 18mm};
[0034] 2) Set the speed of the roller table as e=0.28m / min, then according to the error set, the error △a=10mm at the moving speed;
[0035] 3) Measure the distance S between the end face of the large bar and the measuring point, and calculate the length of the bar to length L=17030-S+10mm;
[0036] 4) Compare the values of L and P, when L=P=5600mm, start cutting;
[0037] 5) After the cutting is completed, the moving speed of the roller table after the initial metering point is given as f=9.8m / min (C=35);
[0038] 6) Set the protection distance of the measuring device as B=1500mm. When S<1500mm, the measuring device will start the prot...
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The invention discloses a cut-to-length control method of a round large bar. The method comprises the following steps: (1) calibrating a position X between a start measurement point and a ranging point, setting the cut length P of the large bar, and obtaining a variable error set (delta)an according to different moving speeds of a roller table; (2) setting the moving speed of the roller table as e, and giving a variable error (delta)a according to the moving speed e and the variable error set (delta)an; (3) measuring the distance S between the end surface of the large bar and the measurement point, and calculating the actual cut length L=X-S+(delta)a; (4) comparing to judge whether L is equal to P; and if L=P, starting cutting; (5) after the cutting, giving f=C*e for the moving speed of the roller table after the start measurement point, wherein C is an integer greater than or equal to 10; (6) setting a protection distance B of a measurement device, and continuing the measurement of S; comparing to judge whether S is less than B; and if S is less than B, starting a protection action by the measurement device; and (7) if the protection time T is up, automatically lifting the measurement device and returning to step (3), wherein T is calculated by a formula shown in the specification.
Description
technical field [0001] The invention relates to the field of large bar production, in particular to a length-setting control method for round large bars. Background technique [0002] At present, in the field of iron and steel production, the sizing methods mainly include the infrared camera sizing method, the measuring roller sizing method and the lateral distance measuring sizing method. Among them, in the field of large bar production, the measuring roller sizing method and the lateral distance measuring sizing method are mainly used. The measurement roller sizing method mainly uses the cumulative calculation of the results of the roller speed n and the roller diameter d. Since the measuring roller of the bar production line is concave, there is a relative displacement of the bar on the roller surface, that is, the calculated value d of the roller diameter and the actual displacement of the bar The error △d caused by the point diameter D and the wear of the measuring rol...
Claims
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IPC IPC(8): B23Q17/20
CPCB23Q17/20
Inventor 谭永彦陶务纯王宝葛本伍杨洪磊孟光振刘超群闫晗
Owner SHANDONG IRON & STEEL CO LTD