SU450092A1 - Method for determining warping of flat parts - Google Patents

Method for determining warping of flat parts

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Publication number
SU450092A1
SU450092A1 SU1857096A SU1857096A SU450092A1 SU 450092 A1 SU450092 A1 SU 450092A1 SU 1857096 A SU1857096 A SU 1857096A SU 1857096 A SU1857096 A SU 1857096A SU 450092 A1 SU450092 A1 SU 450092A1
Authority
SU
USSR - Soviet Union
Prior art keywords
warping
flat parts
ruler
determining
air
Prior art date
Application number
SU1857096A
Other languages
Russian (ru)
Inventor
Маргарита Ивановна Климова
Михаил Иванович Соснин
Original Assignee
Институт Леса И Древесины Имени В.Н.Скачева Со Академии Наук Ссср
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Институт Леса И Древесины Имени В.Н.Скачева Со Академии Наук Ссср filed Critical Институт Леса И Древесины Имени В.Н.Скачева Со Академии Наук Ссср
Priority to SU1857096A priority Critical patent/SU450092A1/en
Application granted granted Critical
Publication of SU450092A1 publication Critical patent/SU450092A1/en

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

1one

Известен способ определени  короблени  плоских деталей путем измерени  стрелы прогиба в вертикальном направлении.There is a known method for determining the warping of flat parts by measuring the deflection boom in the vertical direction.

Предлагаемый способ отличаетс  от известного тем, что коробление плоских деталей определ етс  по искривлению упругой линейки- датчика, совмещенной с поверхностью детали посредством пневмоподушек при давлении воздуха в них 0,02-0,05 кгс/см. Это позвол ет повысить точность и снизить трудоемкость.The proposed method differs from the known one in that the warping of flat parts is determined by the curvature of the elastic sensor ruler, which is combined with the surface of the part by means of air bags at an air pressure of 0.02-0.05 kgf / cm. This makes it possible to increase accuracy and reduce labor intensity.

На чертеже изображена схема замера короблени . Коробление определ етс  по искривлению упругой линейки - датчика 1 совмещенной с поверхностью детали 2. Совмещение пласти упругой линейки с поверхностью испытуемой детали производитс  воздействием на другую пласть линейки равномерно распределенной нагрузки. Нагрузка создаетс  пневмоподушками 3, накачиваемыми воздухом и имеющими давление 0,02-0,05 кгс/см. Возможное искривление материала от нагрузки, создаваемой на одну сторону детали, компенсируетс  второй пневмоподушкой, прижимаемой к плите с противоположной стороны. Обе подушки включены через редуктор в воздущную магистраль параллельно, что обеспечивает одинаковое давление в них воздуха.The drawing shows the measurement of warping. Warping is determined by the curvature of the elastic ruler - sensor 1 combined with the surface of the part 2. Combining the plate of the elastic ruler with the surface of the test part is produced by acting on another plate of the ruler of a uniformly distributed load. The load is created by air bags 3 pumped with air and having a pressure of 0.02-0.05 kgf / cm. The possible curvature of the material from the load applied to one side of the part is compensated by a second airbag pressed against the plate from the opposite side. Both pillows are connected via a reducer to the air line in parallel, which ensures the same air pressure in them.

Процесс замера короблени  осуществл етс  следующим образом.The process of measuring warping is carried out as follows.

Плиту устанавливают на специальный стол, в подушки подают воздух, и линейка - датчик прижимаетс  к поверхности детали. При достижении необходимого давлени  воздуха в подушках производ т отсчет величины короблени  материала, которую определ ют по искривлению линейки, характеризуемому деформированием тензорезисторов, наклеенных по обеим сторонам линейки. Включают теизорезисторы и регистрируют коробление детали электронным или стрелочным прибором, проградуированным в величинах прогибов на 1 м длины в направлении измерени  или средних радиусах кривизны материала.The plate is placed on a special table, air is introduced into the cushions, and a ruler — the sensor is pressed against the surface of the part. When the required air pressure in the pillows is reached, the amount of material warping is measured, which is determined by the curvature of the ruler, characterized by the deformation of the strain gauges glued on both sides of the ruler. The resistors are turned on and the parts are warped with an electronic or switch instrument, calibrated in deflection per meter length in the measurement direction or average curvature radii of the material.

Величина короблени  детали определ етс  как среднее из нескольких замеров в одном направлении, которые могут быть выполнены одновременно, благодар  датчикам, включенным в другие каналы тензометрического усилител . Плоскостность упругой линейки - датчика (нулевой сигнал) врем  от времени провер ют совмещением ее с поверхностью поверочной плиты.The amount of distortion of a part is defined as the average of several measurements in one direction, which can be performed simultaneously, thanks to sensors included in other channels of the strain gauge amplifier. The flatness of the elastic ruler - sensor (zero signal) is checked from time to time by combining it with the surface of the calibration plate.

Предмет изобретени Subject invention

Способ определени  короблени  плоских деталей путем измерени  стрелы прогиба в вер30 тикальном направлении, отличающийс The method for determining the warping of flat parts by measuring the deflection in the vertical direction, different

тем, что, с целью повышени  тонности и снижени  трудоемкости, стрелу ирогиба измер ют упругой линейкой-датчиком, совмещеннойBy the fact that, in order to increase tonnage and reduce labor intensity, the boom of the irogib is measured by an elastic sensor ruler, combined

с поверхностью детали посредством пневмоио-. душек при давлении воздуха в них 0,02- 0,05 кгс/см2.with the surface of the part by means of air. dushek with air pressure in them 0.02-0.05 kgf / cm2.

тt

2j2j

к компрессору,to the compressor

bJjg--b J ц/ IbJjg - b J c / I

SU1857096A 1972-12-15 1972-12-15 Method for determining warping of flat parts SU450092A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1857096A SU450092A1 (en) 1972-12-15 1972-12-15 Method for determining warping of flat parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1857096A SU450092A1 (en) 1972-12-15 1972-12-15 Method for determining warping of flat parts

Publications (1)

Publication Number Publication Date
SU450092A1 true SU450092A1 (en) 1974-11-15

Family

ID=20535058

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1857096A SU450092A1 (en) 1972-12-15 1972-12-15 Method for determining warping of flat parts

Country Status (1)

Country Link
SU (1) SU450092A1 (en)

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