SU1744699A1 - Device for controlling process of surfacing - Google Patents

Abstract

Use: in electrical engineering and can be used to control the processes of surfacing and welding. SUMMARY OF THE INVENTION: A device for controlling a surfacing process comprises a program block 13, four elements AND 8-11, counters 4-6 pulses, a generator 1 pulses, an IS-NE 7 element, setters 2 and 3, respectively, welding width and aisle length, actuators 14, 15 network 12 display. 1 il.

Description

The invention relates to electrical engineering and can be used to control the processes of surfacing and welding.

A device for controlling the process of surfacing of cylindrical parts with a discontinuous outer surface, comprising a program block and position sensors. However, such a device does not take into account possible deviations of the actual sizes of discontinuous surfaces on the parts, since the position sensors receive a command from the cams installed according to the theoretical dimensions.

A device for controlling the welding process, containing a block of a set of programs, the first and second pulse counters connected by inputs to a pulse generator, and outputs to element I.

This device has great potential for changing the duration of operations and the welding cycle, but it also does not take into account the actual deviations of the dimensions of the deposited parts.

The purpose of the invention is the expansion of functional capabilities, in particular, when surfacing cylindrical parts with a discontinuous surface.

The drawing shows a block diagram of a device. thirty

The device comprises a pulse generator 1, a surfacing width adjuster 2, a pass adjuster 3, a 4-6 pulse counter, an AND-NOT element 7 and four AND 8-10 elements. The display unit 12 is connected to the first 35 output of the third pulse counter 6, and the program set block 13 is connected to the first input of the fourth element And 11. In the device for output: to the first actuator 14 and the second actuator 40.

The device operates as follows.

Block 13 of the set of programs sets the number of positions and the number of passes 45 in the position. At each position, a discontinuous surface may be surfaced on the cylindrical part. The width of the guided surface is preliminarily regulated by the range of oscillations of the electrode at a predetermined size. The length of the passage of each discontinuous surface and their number are set by the setter 2. Stopping the surfacing installation in the required position according to the specified program is carried out using the second setter 3.

Before the start of surfacing, the part is installed in the first position. After turning on the drive for accelerated rotation of the part from the pulse generator 1, signals 1 begin to arrive at the second input of the And 8 element and the first input of the And 9 element, the outputs of which will be signal 0 until the switch 2 is turned on. When 5 turns on the first switch 2 on the output of the element And 8 there is a signal 1, arriving at the first input of the counter 4 pulses, the outputs of which will be stored signal 0 for n pulses 10 sov. The number of n pulses is set in the 4-pulse counter, depending on the design and the relative position of the surfacing head and the setter 2. After counting the number of pulses, the output of the pulse counter and the second input of the And 9 element and its output is set to signal 1, while signal 1 arrives at the first actuating element 14, switching the accelerated rotation of the part to the working one and including surfacing mechanisms. At the same time, signal 1 is supplied to the first input of the counter 5 pulses. Switching off the first setter 2 will lead to the appearance of signal 0 at the output of the And 8 element and the first input of the pulse counter 4, however, at its outputs signal 1 will remain until signal 1 appears at its second input. This state depends on the length of the deposited surface and is determined by the number of pulses t ”passed to the counter 4 pulses through the element And 8. The receipt of signal 1 at the first input of the counter 5 pulses is the beginning of the count of pulses m, with the end of the count of which at the output of the counter 5 pulses, the second input And element 10 and its output signal 1 will appear. At the same time, signal 1 will go to the second inputs of counters 4 and pulses, which will return them to their original state, in which the outputs of counters 4 and 5 pulses, the second input and output of element 9, the input of the first executive element 14 will set the signal ”0. Then, the actuating element 14 will turn off the surfacing mechanisms and switch the working rotation of the part to accelerated. The same signal 1, received from the output of the element And 10 to the first input of the counter 6 pulses, will begin counting the number of deposited surfaces, passes and positions. Information about this will pass through its first output and will appear on the display unit 12. In addition, the signal 1 will pass to the input of the second master 3 and the input of block 13 of the program set.

If the number of deposited passes coincides with the specified program, then at the first output of block 13 of the program set, __ the first input of the AND-NOT 7 element and the first input of the AND 11 element, signal 1 will appear on the dial 3 until the end of the cycle in each position from the third output of the 6 pulse counter a signal O is received, which is stored at the output of this sensor and at the 5th second input of the AND-NOT element 7. At the same time, at the output of the AND-NOT 7 element and the second input of the AND element 11 there will be a signal 1, and when the signal 1 arrives at the first input of the AND element 11 at its exit and entrance to the second The element 15 will be set to signal 1, giving a command to move the surfacing unit to the next position and disabling the rotation of the part. After reaching the set position, the signal 1 ”appears at the output of the setter 3 and the second input of the AND-NOT 7 element, and the signal O is output at the output of the AND-NOT 7 element, the second input of the AND element 11, its output and the input of the second actuating element 15, as a result which the surfacing unit will be stopped at the set position and the rotation of the part will start. The execution of a given stage of the program will end with the appearance of a signal O at the first and second outputs of block 13 of the program set, the first input of element And 11, the third output of counter 6 pulses, the input and output of setter 3, the second input of AND-NOT 7.

In the event that at the moment of feeding a 1 ”signal to the first input of a 6-pulse counter, the number of built-up passes does not coincide with the specified program, then the 0” signal will remain at the outputs of the program set block 13, and the rotation of the part will not be interrupted .

This will continue until the block 13 of the program sets the signal to finish the passage of the last surface in the final position, and from its second output to 40 the second input of the pulse counter 6 will receive a command to return the latter to its original position.

Thus, the device allows you to implement any combination of quantities of 45 positions, passes in each position and the number of surfaces in each passage.

The device in comparison with the known increases the technological capabilities of controlling the processes of surfacing and welding. It can additionally be used for surfacing cylindrical parts with discontinuous surfaces located both along the generatrix and in a plane perpendicular to the generatrix. In addition, the device allows you to give control commands using position sensors directly from the deposited part, 10 which increases the accuracy of surfacing of a given surface, eliminates the need for customizable special copiers to control position sensors and thereby reduces the cost of surfacing.

Claims (1)

Claim A device for controlling the surfacing process, comprising a program set block connected to the first element 20 AND, first and second pulse counters connected by outputs to the inputs of the second element I, and a pulse generator, characterized in that, in order to expand the functionality, it is inserted into it25 setters of surfacing width and aisle length, two actuators, two AND elements, an NAND element, a third pulse counter, connected to the display unit by outputs, to the program unit input and to the passage length adjuster, the output of which the second is connected to the first input of the AND-NOT element, the second input of which is connected to the output of the program set, and the output to the second input of the first AND element, the inputs of the third AND element are connected to the cladding width adjuster, to the pulse generator and the first input of the fourth AND element, and the output is through the first pulse counter to the second input of the fourth element And, the output of which is connected to the first actuator and the first input of the second pulse counter, the second input of which is connected to the output of the second element And, the second input of the first counter pulses and the first input of the third pulse counter, the second input of which is connected to the output of the set of programs, the output of the first element And is connected to the second actuator.