SU148324A1 - Device for automatically determining and setting the length of chopped blanks - Google Patents

Description

DEVICE FOR AUTOMATIC DETERMINATION AND INSTALLATION OF LENGTH OF HARNESS PLANTS

For July 3, 196 for jY 736684/26 to the Committee for Inventions and Discoveries of the Council of Ministers of the USSR

Published in “The Bullet of Inventions No. 2, 1962

Devices are known for automatically determining and setting the length of cut blanks, which contain a controlled electric motor for installing a stop that determines the length of the blanks (for example, report "ENIKMASH Voronezh on topic 8-59" Design and research of automatic machines for precise cutting of blanks for stamping with narrow weight tolerance).

The disadvantage of these devices is the impossibility of carrying out the complex automation of the cutting process of dimensional blanks.

The proposed device is devoid of the specified disadvantage. The essence of the invention is that the device is made with an insulating plate provided with current-carrying bands, which are arranged ray-like.

The plate serves to supply an electric potential to one of the strips (according to the measured diameter of the chopped rod). The plate is moved by an electric motor. In addition, the device contains a ruler with a movable contact for closing the motor control circuit when the emphasis is placed on the length of the workpiece, which corresponds to a predetermined volume of the workpiece when its diameter is measured.

The drawing shows a diagram of the proposed device.

The device consists of a roller table /, stop 2, cams 5 and, sensors 5 and 6, an electric motor 7, a correction stop 8, a ruler 9 with a movable contact 10 and an insulating plate 11 with current-carrying strips 12, which are arranged in a beam-like manner.

The device works as follows.

The bar 13 is fed along the roller table / up to the stop 2. Then, by turning the cams 5 and 4, the meter blocks are not shown in the drawing, the measuring units with sensors 5 and 5. The bar is measured

No. 148324-2 in two mutually perpendicular cross sections. The average value of the results of these measurements is taken as the diameter of the rod.

After the measuring blocks are removed from the arresters, the device is turned on. This will measure the rod first by sensor 5, then by sensor 6, and the measurement result is transmitted via the electronic unit 14 to the counting device’s stepper ij. 15. Depending on the measurement result, that is, from the measuring group to which the measured cross-section of the bar should be assigned, the step finder is switched to one or another step. Depending on which step the stepper finder is switched to, the finder or other current-sensing device / 2 is connected through the contacts of this step and the electric potential is applied to it.

After the measurement has been made, the control signal has ended on the light panel of a device not shown in the drawing. At the same time, the measuring blocks should be stopped (manually, by turning the cams 3 and 4) to turn on the feed. In so doing, the motor 7 is turned on and the bar is fed through an adjustable stop 8. At the same time, the ruler 9 begins to move with contact 10. When the correction, its stop 8 reaches the line of origin, contact 10 will reach the first current-to-air strip.

When the contact approaches to tokonesush, the strip to which the electric potential is applied through the contacts of the corresponding step of the step finder, an impulse will be applied to the electronic unit causing braking of the electric motor 7 and its reverse. Line 9 returns to its original position. Then the whole cycle repeats.

Experimental scientific and research institute of metal-cutting machine tools ENIMS in conclusion indicated that the proposed device has industrial utility.

Subject invention

A device for automatically determining and setting the length of cut blanks, comprising a controllable electric motor for setting a length determining blanks, characterized in that, in order to comprehensively automate the cutting process of measuring blanks, it contains an insulating plate with current-carrying ray-spacedly distributed stripes for feeding into one of them (according to the measured diameter of the cutting rod) of electric potential and, moved by the electric motor, a ruler with a movable contact for The motor chain is controlled by the electric motor when the emphasis is placed on the length of the workpiece corresponding to the specified volume of the workpiece with its measured diameter.