SU891229A2

SU891229A2 - Apparatus for measuring machine tool working member position

Info

Publication number: SU891229A2
Application number: SU802880148A
Authority: SU
Inventors: Валентин Андреевич Яковенко; Владимир Михайлович Опенкин
Original assignee: Рязанское специальное конструкторское бюро станкостроения
Priority date: 1980-02-08
Filing date: 1980-02-08
Publication date: 1981-12-23

Description

1one

Изобретение относитс к машиностроению , а именно к устройствам дл контрол линейного пе)еме1иени рабочих органов металлорежущих станков.The invention relates to mechanical engineering, namely to devices for controlling the linear transfer of the working bodies of machine tools.

По основному авт. св. № 795731 известно устройство дл измерени положени рабочего органа станка, содержащее роторный датчик, соединенный с приводным винтом и преобразователь, показывающий величину переменлени , а также дополнительный .чатчик, выдающий сигнал о трогании с места рабочего органа, причем выходы роторного датчика и датчика трогани соединены со входами элемента И, выход которого соединен со входом преобразовател 1.According to the main author. St. No. 795731, a device for measuring the position of a working body of a machine tool is known, comprising a rotor sensor connected to a driving screw and a transducer showing the magnitude of the change, as well as an additional processor giving a signal of moving the working device, and the outputs of the rotor sensor and moving sensor are connected the inputs of the element And, the output of which is connected to the input of the converter 1.

Недостатком этого устройства вл етс . сложность, так как датчик трогани рабочего органа включает в себ безлюфтовую передачу рейка - колесо и роторный датчик .A disadvantage of this device is. complexity, since the sensor of moving the working device includes a backlash-free transmission of the rail-wheel and rotary sensor.

Цель изобретени - упрощение конструкции устройства.The purpose of the invention is to simplify the design of the device.

Поставленна цель достигаетс тем, что датчик, выдаюишй сигнал о трогании с места рабочего органа станка, выполнен в виде установленного на корпусе гайки рычага.The goal is achieved by the fact that the sensor, issuing a signal to start off the working body of the machine, is made in the form of a lever mounted on the housing of the nut.

взаимодействующего одним концом с нарезкой винта, а другим - с конечным выключателем .interacting with one end with threading the screw, and the other with the limit switch.

На фиг. 1 показана структурна схема , устройства; на фиг. 2 - датчик трогани с места рабочего органа, общий вид; на фиг. 3 - то же, вид К.FIG. 1 shows a block diagram of the device; in fig. 2 - sensor moving from the place of the working body, general view; in fig. 3 - the same, type K.

Устройство содержит роторный датчик I, установленный на конце приводного винта 2. взаимодействующего с гайкой 3.The device contains a rotary sensor I mounted on the end of the drive screw 2. interacting with the nut 3.

На корпусе гайки 3,. установлен рычаг Q 4, взаимодействующий одним концом 5 с нарезкой винта 2, а другим концом 6 - с конечным выключателем 7. Выходы датчика 1 и конечного выключател 7 электрически соединены с входами логического элемента И, выход которого соединен с преобразователем 8. Передача винт 2 -- гайка 3 приводит в движение рабочий орган 9 станка.On the body of the nut 3 ,. lever Q 4 is installed, which interacts with one end 5 with threading screw 2, and the other end 6 with end switch 7. The outputs of sensor 1 and limit switch 7 are electrically connected to the inputs of the logic element I, the output of which is connected to the converter 8. Transmission screw 2 - - nut 3 drives the working body 9 of the machine.

К корпусу гайки 3 крепитс планка 10The strap 10 is attached to the body of the nut 3

с двум лунками II, в которые вставленыwith two holes II, which are inserted

шарики 12. На шариках 12 может повора29 рычаг 4, на котором имеютс двеballs 12. Balls 12 can turn 29 lever 4, on which there are two

идентичные лункам 11 лунки 13.11 holes identical to the wells 13.

Claims

The lever 4 is attached to the body of the nut 3 by a bolt 14. Between the head of the bolt 14 and the lever 4 a spring 15 is installed to return the lever 4 to its original position. The end 5 of the lever 4 has a screw surface (parts of one turn) and is in contact with the screw

2. The device operates as follows. When the screw 2 is rotated, the gap in the screw pair is selected. Using the limit switch, a signal prohibits the element from passing the signal from the sensor I, and the converter 8 does not read the position of the working body of the machine. When selecting the gap, the lever 4, interacting with the end 5 with the screw 2, rotates, moves the end of the lever lever 4 and closes the contact of the limit switch 7, the signal from which allows the element 8 to pass the signal from the sensor 1 F to the converter 8 and the position of the working body of the machine . When the screw 2 rotates to the other side, the lever 4 is rotated on the balls 12 by the action of the spring. When sampling the gap in the gear using the limit switch 7, a signal prohibits the element AND passing the signal from sensor I. And when the gap is sampled, the end 6 of the lever 4 presses to the limit switch 7, through which a signal is issued allowing the element AND the signal from sensor 1 to converter 8 and the position of the working body of the machine is read. When rotating the screw in one direction, use the open contact of the limit switch, while rotating in the opposite direction, the closing contact of the limit switch. When the arms of the lever 4 1:10 fit (from the contact with the screw to the balls 12 and from the balls 12 to contact with the push switch of the end switch), the device receives as an additional “signal boost, with a backlash (clearance) of 0.01 mm, the push bar of the end switch can have a stroke of 0.1 mm. The proposed device provides an automatic exclusion of the backlash variable variable transducer from indications, the simplified design does not allow for the use of an additional expensive rotary sensor with rack and pinion transmission. The invention The device for measuring the position of the working body of the machine according to ed. St. No. 795731 is distinguished by the fact that, in order to simplify the construction, the sensor, issuing a signal about moving from the working machine body, is made in the form of a lever mounted on the housing of the nut, which interacts with one end with a screw thread, and the other with a limit switch. Sources of information taken into account in the examination 1. USSR author's certificate 795731, cl. On 23 May 25/06, 1978.

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