SU1273732A1

SU1273732A1 - Device for measuring thickness of large-size components

Info

Publication number: SU1273732A1
Application number: SU853919880A
Authority: SU
Inventors: Виктор Дмитриевич Бабушкин; Виктор Доржиевич Нимаев; Владимир Борисович Кувшинов; Леонид Павлович Пахтин
Original assignee: Предприятие П/Я Р-6115
Priority date: 1985-04-08
Filing date: 1985-04-08
Publication date: 1986-11-30

Abstract

Изобретение относитс к техническим измерени м. Целью изобретени вл етс расширение номенклатуры контролируемых деталей за счет возможности измерени крупногабаритных деталей сложной формы с измен ющейс толщиной. Устройство содержит каретку с базовыми элементами и установленным на ней датчиком линейных перемещений. Каретка, помещенна на край измер емой детали в начальную точку отсчета, перемещаетс пр молинейно при помощи привода, установленного на ней. Перемещение происходит до тех пор, пока каретка, достигнув противоположного кра детали, не остановитс по сигналу датчика ограничени перемещений. Далее каретка поднимаетс над деталью при помощи механизма подъема и поворачиваетс механизмом- поворота на угол Ч , функционально св занный с пройденным кареткой рассто нием. Угол поворота ограничиваетс подвижным упором, установленным на каретке, перемещение которого св зано с перемещением каретки. Далее каретка опускаетс на ю деталь и перемещаетс в обратную сто (Л рону под углом Ч к первоначальному направлению перемещени , пока не достигнет кра детали и не остановитс . Затем происходит подъем каретки, ее поворот в противоположном направлении на тот же угол Ч , опускание на деталь, и весь цикл измерени повts: ) тор етс требуемое число раз. 3 ил. оо i |СО |ГОThe invention relates to technical measurements. The aim of the invention is to expand the range of monitored parts due to the possibility of measuring large-sized parts of complex shape with varying thickness. The device contains a carriage with base elements and a linear displacement sensor mounted on it. The carriage, placed on the edge of the measured part at the starting point of reference, moves in a straight line by means of an actuator mounted on it. The movement occurs until the carriage, having reached the opposite edge of the part, stops at the signal of the sensor for limiting movement. Next, the carriage is raised above the part by means of a lifting mechanism and rotated by a turning mechanism by an angle H, functionally related to the distance traveled by the carriage. The angle of rotation is limited by the movable stop mounted on the carriage, the movement of which is associated with the movement of the carriage. Next, the carriage goes down to the 10th part and moves to the backward part (L angle at the angle к to the initial direction of movement until it reaches the edge of the part and stops. Then the carriage rises, rotates in the opposite direction to the same angle, lowering it onto the part , and the whole measurement cycle turns on:) the number of times required. 3 il. oo i | SO | GO

Description

Изобретение относится к техничесУстройство работает следующим обким измерениям, а именно к измерению линейных размеров (толщины или ширины) на детали через определенный шаг.The invention relates to a technical device. The device operates in the following general measurements, namely, the measurement of linear dimensions (thickness or width) on a part after a certain step.

Целью изобретения является расширение номенклатуры контролируемых деталей за счет возможности измерения крупногабаритных деталей сложной формы с изменяющейся толщиной.The aim of the invention is the expansion of the range of controlled parts due to the possibility of measuring large-sized parts of complex shape with varying thickness.

На фиг.1 представлено предлагаемое устройство, общий вид;нафиг.2то же, с повернутой кареткой; на фиг.З - схема перемещения устройства по детали при измерении.Figure 1 presents the proposed device, General view; see 2 the same, with the carriage turned; in Fig.3 is a diagram of the movement of the device along the part when measuring.

Устройство содержит каретку 1 с базовыми элементами 2, которыми в данном случае являются 'колеса, и приводом 3, обеспечивающим совместно с базовыми элементами прямолинейное перемещение каретки 1. На каретке 1 установлен измерительный преобразователь 4, который в случае измерения толщины детали является датчиком неразрушающего контроля толщины, а в случае измерения ширины детали является датчиком линейных перемещений с подключенными к. нему аналого-цифровым преобразователем 5 и цифропечатающим устройством 6. С кареткой 1 соединены датчики 7-9 ограничения линейных перемещений.The device comprises a carriage 1 with the basic elements 2, which in this case are the wheels, and a drive 3, which ensures, together with the basic elements, a linear movement of the carriage 1. A measuring transducer 4 is installed on the carriage 1, which in the case of measuring the thickness of a part is a non-destructive thickness monitoring sensor , and in the case of measuring the width of the part, it is a linear displacement sensor with an analog-to-digital converter 5 and a digital printing device connected to it 6. Sensors 7 are connected to the carriage 1 -9 linear displacement restrictions.

**

Устройство снабжено механизмом подъема каретки над контролируемой деталью 10 (фиг.З), выполненным в виде основания 11, установленного на каретке 1 с возможностью поворота относительно оси 12, с выдвижными опорами 13. Устройство также снабжено механизмом 14 поворота каретки, фиксатором 15 взаимного положения каретки 1- и основания 11 механизма подъема, неподвижным упором 16, подвижным упором 17, установленным'с возможностью перемещения вдоль каретки 1 от привода 3 через предохранительную муфту 18 и винтовой передаточный механизм 19.The device is equipped with a mechanism for lifting the carriage over the controlled part 10 (Fig.Z), made in the form of a base 11 mounted on the carriage 1 with the possibility of rotation about the axis 12, with sliding supports 13. The device is also equipped with a mechanism 14 for turning the carriage, a latch 15 of the relative position of the carriage 1- and the base 11 of the lifting mechanism, a fixed stop 16, a movable stop 17, installed with the possibility of movement along the carriage 1 from the drive 3 through the safety clutch 18 and the screw gear 19.

Расстояние а между направлением перемещения подвижного упора 17 и осью 12 поворота каретки 1 выбирается из условия а = А ' Ь/В, где А - шаг измерений;The distance a between the direction of movement of the movable stop 17 and the axis 12 of the rotation of the carriage 1 is selected from the condition a = A 'b / B, where A is the measurement step;

b - величина перемещения подвижного упора;b is the amount of movement of the movable stop;

В - величина перемещения каретки „ разом.B is the amount of movement of the carriage at once.

Перед измерением устройство устанавливают в углу измеряемой детали 5 10 таким образом, чтобы перемещение каретки 1 было или параллельно краю детали, или перпендикулярно той стороне детали, от которой измеряется толщина (или ширина) детали. ВключаЮ ют привод 3, и каретка 1 прямолинейно перемещается по детали 10 до тех пор, пока датчик 8 не достигает края детали, после чего каретка 1 останавливается . Во время прямолинейного 15 движения каретки 1 преобразователем 4 измеряется толщина детали (или величина перемещения каретки 1 по измеряемой детали). Сигнал с преобразователя поступает на аналоговый 20 преобразователь 5 и далее на цифропечатающее устройство 6. Одновременно с движением каретки 1 происходит перемещение подвижного упора 17, связанного через винтовой передаточный механизм 19 и предохранительную муфту 18 с приводом 3. Перемещение упора прямо пропорционально перемещению каретки. После останова каретки 1 у противоположной стороны де^3<3 тали 10 выдвигаются опоры 13, и основание 1I механизма подъема каретки вместе с кареткой 1 поднимается над деталью 10, включается механизм 14 поворота каретки и происходит ее поворот на угол до соприкосновения подвижного упора 17 с опорной плоскостью М основания 11. Угол поворота ψ функционально зависит от расстояния В, пройденного кареткой, и обес40 печивает постоянство шага А при проведении измерений. После поворота на угол'4> взаимное положение каретки и основания закрепляется фиксатором 15, опоры 13 вдвигаются в основание 11, и каретка 1 опускается на деталь 10. Включается привод 3, на который предварительно подается команда Реверс, и начинается прямолинейное перемещение каретки в обратном направлении до тех пор, пока датчик 9 не достигнет края детали и каретка 1 не остановится .Before measurement, the device is installed in the corner of the measured part 5 10 so that the movement of the carriage 1 is either parallel to the edge of the part, or perpendicular to the side of the part from which the thickness (or width) of the part is measured. Drive 3 is turned on, and the carriage 1 moves linearly along the part 10 until the sensor 8 reaches the edge of the part, after which the carriage 1 stops. During the rectilinear 15 movement of the carriage 1, the transducer 4 measures the thickness of the part (or the amount of movement of the carriage 1 along the measured part). The signal from the converter is fed to the analog 20 converter 5 and then to the digital printing device 6. Simultaneously with the movement of the carriage 1, the movable stop 17 is connected through the screw gear 19 and the safety clutch 18 with the drive 3. The stop moves in direct proportion to the movement of the carriage. After the carriage 1 stops, the supports 13 extend out on the opposite side of de ^{3 <3} hoists 10, and the base 1I of the carriage lifting mechanism together with the carriage 1 rises above the part 10, the carriage rotation mechanism 14 is turned on and it is rotated through an angle until the movable stop 17 contacts the support plane M of the base 11. The angle of rotation ψ functionally depends on the distance B traveled by the carriage, and ensures the constancy of step A during measurements. After turning through an angle of 4 4>, the relative position of the carriage and the base is fixed with a latch 15, the supports 13 slide into the base 11, and the carriage 1 lowers onto the part 10. The drive 3 is turned on, to which the reverse command is preliminarily applied, and the linear movement of the carriage in the opposite direction begins until the sensor 9 reaches the edge of the part and the carriage 1 does not stop.

•Так как длина обратного пути каретки 1 больше прямого (по гипотену55 зе треугольника), то после возвращения подвижного упора 17 на исходные .• Since the length of the return path of the carriage 1 is greater than the direct one (according to hypothesis 55 of the triangle), then after the movable stop 17 returns to the original ones.

позиции срабатывает предохранитель, ная муфта 18. Остановившаяся карет3 ка 1 поднимается над деталью 10, поворачивается в противоположном направлении на угол ч> до контакта с неподвижным упором 16, после чего опускается на деталь 10. Устройство 5 готово ддя следующего цикла измерений. Циклы повторяются до тех пор, 'пока не будет измерена с постоянным шагом А толщина вдоль всей детали.position, the fuse clutch 18. The stopped carriage 3 rises above the part 10, rotates in the opposite direction by the angle h> until it contacts the fixed stop 16, and then falls on the part 10. The device 5 is ready for the next measurement cycle. Cycles are repeated until 'thickness is measured at a constant step A along the entire part.

Claims

The invention relates to technical measurements, namely to measuring linear dimensions (thickness or width) on a part through a certain step. The aim of the invention is to expand the range of controlled parts due to the possibility of measuring large-sized parts of complex shape with a change of thickness. Figure 1 presents the proposed device, a general view; Fig. 2the same, with the carriage turned; FIG. 3 is a diagram of the movement of the device over the part during measurement. The device contains a carriage 1 with base elements 2, which in this case are wheels, and with water 3, providing, together with the basic elements, the linear movement of carriage 1. On carriage 1, a measuring transducer 4 is installed, which in the case of measuring the thickness of a part is A sensor for non-destructive thickness control, and in the case of measuring the width of a part, is a linear displacement sensor connected to it by an analog-to-digital converter 5 and a digital printing device 6. Sensors 7-9 are connected to the carriage 1 limiting linear displacements. The device is equipped with a carriage lifting mechanism over the controlled part 10 (FIG. 3), made in the form of mounting 11, mounted on the carriage 1 rotatably relative to the axis 12, with extendable supports 13. The device is also equipped with a carriage turning mechanism 14, a lock 15 relative position the carriage 1- and the base 11 of the lifting mechanism, the fixed stop 16, under the sliding stop 17 installed with the possibility of movement along the carriage 1 from the drive 3 through the safety coupling I8 and the screw gear mechanism 19. The distance a the direction of movement of the movable stop 17 and the axis 12 of rotation of the carriage 1 is chosen from the condition A b / B, where A is the measurement step; b is the amount of movement of the movable stop; B - the value of the movement of the carriages 2 The device operates as follows. Before measuring, the device is installed in the corner of the measured part 10 so that the movement of the carriage 1 is either parallel to the edge of the piece or perpendicular to the side of the part from which the thickness (or width) of the part is measured. The drive 3 is turned on, and the carriage 1 moves linearly along the part 10 until the sensor 8 reaches the edge of the part, after which the carriage 1 stops. During the linear movement of the carriage 1, the converter 4 measures the thickness of the part (or the amount of movement of the carriage 1 along the measured part). The signal from the converter is fed to the analog converter 5 and then to the digital printing device 6. Simultaneously with the movement of the carriage 1, the movable stop 17 is connected, which is connected through a screw transmission mechanism 19 and the safety clutch 18 with the drive 3. The movement of the stop is directly proportional to the movement of the carriage. After the carriage 1 stops at the opposite side of the part 10, the supports 13 are moved out, and the base 1I of the carriage lifting mechanism together with the carriage 1 rises above the part 10, the carriage turning mechanism 14 turns on and is rotated through the angle Ч to the contact stop M of the base 11. The angle of rotation Y is functionally dependent on the distance B traveled by the carriage and ensures the constancy of step A during the measurements. After turning at an angle 4, the mutual position of the carriage and the base is fixed by the latch 15, the supports 13 are pushed into the base II, and the carriage 1 is lowered onto the part 10. The drive 3 is activated, to which the reverse command is preliminarily applied, and the linear movement of the carriage starts in the opposite direction until until sensor 9 reaches the edge of the part and carriage 1 does not stop. Since the length of the return path of the carriage 1 is longer than the straight line (by the hypotenuse of the triangle), then after the movable stop 17 returns to its original positions, the safety clutch 18 is activated. Stopping from the carriage 1 rises above the part 10, it rotates in the opposite direction by the angle h before contact with a fixed stop 16, after which it is lowered onto the part 10. The device is ready with DD1Y of the next measurement cycle. The cycles are repeated until the thickness is measured at a constant pitch A along the entire part. Claims An apparatus for measuring the thickness of large parts, comprising a carriage with base elements and with water for directing it through a test piece, a measuring transducer mounted on the carriage, an analog-to-digital converter and a digital printing device connected to the sensor, and linear limit sensors displacements mounted on the carriage, characterized in that, in order to expand the range of controlled parts, it is equipped with a mechanism for raising the carriage over the counter Shaped part made in the form of a base mounted on the carriage can be rotated about an axis perpendicular to the base plane, and sliding supports mounted on the base can be moved perpendicular to the base plane, the carriage turning mechanism, the locking relative position of the carriage and the base of the lifting mechanism , a fixed stop mounted on the carriage and bounding in one direction the angle of its rotation relative to the base of the lifting mechanism, a movable stop mounted on the slide with the possibility of moving along it, connected with the drive of moving the carriage through the transmission mechanism and limiting the turn of the carriage in the opposite direction, and the safety clutch connecting the drive with the movable stop, and the distance between the direction of travel of the movable stop and the axis of rotation of the carriage is selected from the condition L / B, where A is the measurement step; b is the amount of movement of the movable stop; B - the amount of movement of the carriage.