SU1576837A1 - Apparatus for monitoring dimensions of workpieces in transportation rotor - Google Patents

Abstract

This invention relates to a measurement technique and can be used in mechanical engineering. The purpose of the invention is to reduce the changeover time, which is achieved by combining transportation and control operations. For adjustment, three identical reference parts are installed in the prisms of the transport rotor 7. When the transport rotor 7 rotates, the same number of pulses is read from the clock sensor during each interaction of the pin 5 of the stop 4 with the first arm 3 of the test probe 1, which occurs when the transport rotor 7 rotates 1/3 of a turn, and the setup of the device ends. During operation, the transport rotor 7, rotating, periodically interacts with the pin 5 of the stop 4 with the first shoulder 3 of the control probe 1, turning it. In this case, the second arm 9 includes a sensor 11, the signal from which is fed through the one-shot to element 4I. At this moment, the number of pulses read from the clock sensor is compared with the preset value by means of switches, which, if necessary, can be replaced by an electronic memory unit. 7 il.

Description

This invention relates to a measurement technique and can be used in mechanical engineering.

The aim of the invention is to reduce changeover time, which is achieved by combining transportation and control operations.

Figure 1 shows the device, a general view; view from above; figure 2 - section aa in figure 1; on fig.Z - view B in figure 2; 4 shows a kinematic scheme of the device; on fig.Z - section bb In figure 4; figure 6 is a view of G in figure 4; 7 is an electronic circuit of the device.

The device for controlling the dimensions of the parts in the transport rotor contains a control probe 1, made in the form of a two-arm lever fixed on axis 2, the first arm 3 of which has the possibility of periodical contact with pins 5 eccentrically located relative to the axis of stops 4. movable gripping levers 6 of the transport rotor 7 by means of a threaded connection and secured with nuts 8. The second arm 9 of the test probe 1 is spring-loaded 10 away from the sensor 11 located outside the zone rotated and the transport rotor 7. Outside this zone, the stop 12 is also fixedly fixed, which serves to fix the control probe 1 in the initial position.

 The pulse generator 13 is located on the first shaft 14 of the gearbox 15, which is made up of gears 16 and 17, which is connected via the second shaft 18 and gear 19 to the driving gear 20 of the transport rotor 7 (Fig. 41).

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The pulse generator 13 consists of a disk 21 fixedly mounted on the first shaft 14 of a disk 21 with flags evenly spaced around the circumference. The disk with flags is arranged to interact with a clock sensor 23.

The first 14 and second 18 shafts of the gearbox 15 are rigidly fixed to the first 24 and second 25 flags, which are arranged to be in contact with the second 26 and third 27 sensors, which form an electromechanical synchronization unit 28.

The electronic unit 29 of counting and comparison contains a single vibrator 30, the output of which is connected to element 4I 31. The output of the clock sensor 23 of the generator 13 pulses through counters 32, decoders 33 and master switches 34 is connected to element 4I 31. The outputs of the first 26 and second 27 sensors through the element 2 and 35 are connected to counters 31.

The device works as follows.

For adjustment, three identical reference parts are installed in the prisms of the transport rotor 7.

The second 26 and third 27 sensors are triggered after 1/3 of a turn of the transport rotor 7, the trigger point does not matter, since at this point the counters 31 are reset.

When the transport rotor 7 rotates after the counters are reset, a new reading begins, after a certain number of pulses (K;) pin 5 of the stop 4 deflects the first arm 3 of the test probe 1, and the second arm 9 turns on the sensor 11. Also the number of pulses at the other positions is checked rotor transport rotor 7.

When the condition is met, the transport rotor 7 is considered to be well-established. If this equality is not observed, it is necessary to change the position of the pin 5 on the stop 4, it is enough to unscrew the locking nut 8, turn the stop 4 depending on the number of pulses in one direction or the other, fix it with the nut 8 and retest.

After adjusting the transport rotor 7, the readjustment to another part will already be carried out by the switches 34.

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10 to the fixed support 12..

The transport rotor 7, rotating, periodically interacts with its pin 5 of the stop 4 with the first shoulder 3 of the test probe 1, turning it. At the same time, the second shoulder 9 activates the sensor 11, the signal from which through one vibrator 30 enters element 4I 31.

At the moment the sensor 11 is turned on, the number of pulses read from the clock sensor 23 is compared with the predetermined setting when changing the diameter of the part by the jr switches 34, which, with an optional reference number of pulses N, which must be set to control switches .34, will be equal to (ds-d.) - m, where ha is the number of pulses when the rotor passes through 20 mm of 1 mm in diameter of the part; d 9 - diameter of the reference part, mm; d p - diameter of the workpiece, mm.

The transport rotor 7 receives a rotational motion by means of a driving gear wheel 20, which is kinematically connected to the gearbox 15 via gear 19 and the second shaft 18. One turn of the rotor 7 corresponds to a definite number of rotations of the first shaft 14 of the gearbox 15 (in this specific case 90 turns).

At the end of the first shaft 14, the disk 21 is rigidly fixed with flags 22 evenly spaced around the circumference. During its rotation in the range of the clock sensor 23, the pulse generates clock pulses with a frequency proportional to the rotation frequency of the transport rotor 7. After each rotation of the transport rotor 7 to another position ( 1/3 of the total turnover) the second 26 and third 27 sensors are switched on together. This is ensured by the fact that by turning the transport rotor 7 1/3 of a full revolution, the first shaft 14 makes 30 revolutions, and there is a gear 16 with a number of teeth, a multiple of 31, which engages with the gear 17 of the second shaft 18 with the number of teeth a multiple of 30.

The control of the dimensions of the parts is carried out with the help of the control probe 1.

In the initial state, the first shoulder 3 of the test probe 1 is pressed against a string

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The convergence can be replaced by an electronic memory unit when the rotor is controlled by an electronic digital device.

Due to the electronic readout of the number of pulses of the clock sensor 23, the response of the sensor 11 and their comparison with the predetermined one determines the size of the portable part with a given accuracy.

The transfer of the transport rotor to another part size and the change in the accuracy of controlling the dimensions of the products are carried out by means of the master switches 34 (due to the change in the number of pulses).

The use of this device will allow to control the dimensions of parts directly in the transport rotor with high accuracy, as well as provide automatic readjustment when the dimensions of the controlled products are changed and when the accuracy of control of the products is changed, which will significantly simplify the changeover process and reduce the time spent on servicing the transport rotor

Claims (1)

Invention Formula A device for controlling the dimensions of parts in the transport rotor, containing a sensor and a test probe installed with the ability to interact with the sensor, characterized in that, in order to expand operational capabilities by reducing changeover time, it is equipped with an electronic counting and comparison unit, a pulse generator and electromechanical synchronization unit; kinematically connected with the lead element of the transport rotor, the sensor is connected to the first input 10 to the fixed support 12.. The transport rotor 7, rotating, periodically interacts with its pin 5 of the stop 4 with the first shoulder 3 of the control probe 1, turning it. In this case, the second arm 9 includes a sensor 11, the signal from which via the single-vibrator 30 is supplied to element 4I 31. At the moment the sensor 11 is turned on, the number of pulses read from the clock sensor 23 is compared with the predetermined master switches 34, which, if necessary, 5 o five 0 five 0 The transition can be replaced by an electronic memory unit when the rotor machine is controlled by an electronic digital device. Due to the electronic reading of the number of pulses of the clock sensor 23, the sensor 11 is triggered and compared with a predetermined one to determine the size of the portable part with a given accuracy. The transfer of the transport rotor to another part size and the change in the accuracy of controlling the dimensions of the products are carried out by means of the master switches 34 (due to the change in the number of pulses). Using this device will allow you to control the dimensions of parts directly in the transport rotor with high accuracy, as well as to provide automatic readjustment when you change the size of the controlled products and when you change the accuracy of control products, which greatly simplifies the process of changeover and reduce the cost of working time for maintenance of the transport rotor. Invention Formula A device for controlling the dimensions of parts in the transport rotor, comprising a sensor and a control probe mounted with the ability to interact with the sensor, characterized in that, in order to expand operational capabilities by reducing changeover time, it is equipped with an electronic counting and comparison unit, a pulse generator and an electromechanical assembly synchronization; kinematically connected with the drive element of the transport rotor / sensor connected to the first input eight 2122. eight Fye.Z / YU X 7577 t 18 28 /  AT Phie, b 21 23 yy 5 g 25 17 5