SU954942A1 - Copying device for machine-tools - Google Patents

Description

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The invention relates to mechanical engineering and can be used, for example, 8 lathes with a hydro-pyro-caliper for machining shaped surfaces of parts.

Hydro roping devices are known in which the control of the supply and removal of the hydraulic support is carried out by means of the hydraulic cylinder of the hydraulic support, controlled by the follower, and the device for controlling the initial position of the hydraulic support and its depth is made in the form of a trip off, which interacts with the drum stops, where the switch with a withdrawal mechanism through the relay element 1,

Closest to the invention is a copier containing. For example, a hydrocopy caliper with a copier, a sensor for supplying and discharging the hydrosupport, a control unit for moving the syrosupport and the depth of its aisles, in which this control device is made in the form of a mechanical multi-position reel of stops c. movable and fixed stops and hydraulic mechanism of its rotation with the locking mechanism 2.,

In the known copier, when machining parts with a large allowance, there arises the need for preliminary complex adjustment of the length of each mechanical one. emphasis on the corresponding depth of passes that significantly increases

t5 auxiliary time, reducing processing performance.

In addition, the limited number of stops on the drum stops with a large allowance for parts makes it difficult

-20 setting up the drum and making it harder to set up.

The purpose of the invention is to increase the speed of the device. The purpose of the invention is to provide a copier for machine tools containing first and second switching elements, a control relay, the first winding terminal of which through serially connected own closing contact and the opening contact of the first switching element is connected to the first the input of the device and through the closing contact of the first switching element - with the output of the first comparison unit, the first input of which is connected to the second input of the device Events, the second input through the amplifier with the output of the control unit and sequentially connected to the positioner of the actuator, the first adder, the second comparison unit, the control unit, the actuator connected to the copier and the displacement sensor of the actuator connected to the second input of the first adder additionally contains a master depth gauge and serially connected memory block, a Delay element and a second adder, the second input of which is connected to the output the depth sensor, the output through the closing contact of the second switching element with the input of the memory unit connected by the output through the second closing contact of the control relay, to the second input the second of the adder. The drawing shows a block diagram of the device. The device contains actuating element 1, copier 2, machine 3, sensor for displacement of the actuating element, second comparison unit 5, control unit 6, amplifier 7, aperture depth adjuster 8, second adder 9, open contact 10 of the second switch, memory block 11 Ti, normally open contact 12, control relay 13, first adder 1, second comparison unit 15, normally open contact 16 and normally closed contact 17 of the switch, normal open contact 18 of the relay 13, delay element 19, start button 20, setpoint 21 positions Olney to the elements. The device works as follows. At the setting device 8, made, for example, in the form of a decade switch of 24 bodies, the desired depth of cut is accumulated. The actuating member (caliper) 1 of the machine 3 is set to a certain initial position; pin 10 closes; By setting unit 21, element 1 is brought to touch with the part, then button 20 is pressed. The value of the selected cutting depth A is stored in block 11, and then summed with the value characterizing the initial position of the caliper in the adder k, then in block 5 comparison the signal characterizing the actual position caliper 1 is compared with a predetermined position. If the resulting output signal from block 5 is zero, control block 6 stops caliper 1. Amplifier 7 is needed to create the desired dynamic response of the closed-loop system ... When the button 20 is pressed, the longitudinal feed begins i and the normally open contact 16 is closed, as a result of which the relay 13 (P) closes the normally open contacts 12 and 18, including their respective circuits. After the end of the first pass, the caliper 1 is reset, the contact 10 is closed and the depth of the passage is summed with the depth of the first pass, stored in block 11, through the delay element 19. The total depth of the passage is summed with the initial position and the cycle is repeated. This will continue until the copier probe 2 touches the template, i.e. soupnopt will not be able to reach a given depth of cut. Then, from block 5, a signal other than zero will go, characterizing the fact that the actual position of the support 1 (according to the signal from the sensor) does not correspond to the given one. The output signal from block 5 is compared to zero in block 15 and, since the difference of these signals does not correspond to zero, the circuit is turned off and the finishing pass will be completed. The processing of the next part can be started by pressing the button 20. The proposed device reduces the auxiliary time for setting up and setting the depth of the passes, increasing the processing performance and reduces the laboriousness of servicing the device.

Claims (1)

Claim A copying device for machine tools, containing the first and second switching elements, a control relay, the first winding of which is connected through a series of its own make contact and the open contact of the first switching element to the first input of the device and through the make contact of the first switching element to the output of the first comparison unit, the first input of which is connected to the second input of the device, the second input through an amplifier - with the output of the control unit, and the rear actuator position indicator, first adder, second comparison unit, control unit, actuator connected to the copy by the second input, and displacement sensor SPT Patent Branch, Uzhgorod, ul.Proek m to I 4 tional element output coupled to the second input of the first adder, _About tlichayuscheesya fact _{cht.o, in order to increase the speed of the device 5, it comprises a dial depth and passes successively connected by a memory unit, a delay element and a second adder, the second input of which is connected to the output 10 of the depth gauge, the output through the make contact of the second switching element - with the input of the memory unit connected to the output through the second make contact up1S equal to p le to the second input of the second adder.