SU1524973A2 - Welding device - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to the automation of welding processes and can be used in installations for arc or electron beam welding. The purpose of the invention is to improve the quality of welding. The introduction of a memory unit, a reversing drive for movement of the product, the OR element and the one-shot to the device ensures stabilization of the angle of inclination of the heat source to the surface of the product being welded and improving the accuracy of tracking the joint. 3 il.

Description

(61) 1326406

(21) 4390883 / 25-27

(22) 03/14/88

(46) 11/30/89. Bul No. 44

(72) C. A. Ankudinov

(53) 621.791.75 (088.8)

(56) USSR author's certificate

№ 1326406, cl. At 23 K 9/10, 1987.

(54) WELDING DEVICE (57) The invention relates to mechanical engineering, in particular to automation of welding processes, and b. used in installations for arc or electron beam welding. The purpose of the invention is to improve the quality of welding. The introduction of a memory unit, a reversing drive for moving a product, an OR element and a single vibrator into the device ensures the stabilization of the angle of inclination of the heat source to the surface of the product being welded and an increase in the accuracy of tracking the joint. 3 il.

The invention relates to the automation of welding processes and can be used in installations for arc or electro-radial welding with a heat source moving along a complex trajectory and is the invention of the invention in accordance with the authors. St. No. 1326406.

The purpose of the invention is to improve the quality of welding by stabilizing the angle of inclination of the heat source to the surface of the product and improving the accuracy of tracking the joint.

FIG. 1 shows a functional diagram of the device; in fig. 2 - the trajectory of the heat source relative to the joint; pas figs. 3 is a scheme for adjusting the angle of the heat source.

The device contains a pulse generator 1 connected in series, an OR 2 circuit. 2. A counter 3, a code converter 4, a switch 5, the signal inputs of which are connected to a positive source 6 and a negative voltage source 7, and an integrator 9 X to the signal outputs, connected by outputs with an amplifier 10 X and an amplifier 11 U, the outputs of which are connected to the diverting system 12. Switch 5 contains analog switches 13–16. The control inputs of the keys 13-16 are connected to the output of the converter 4 codes, the signal inputs of the keys 13 and 15 are connected to the output of the positive voltage source 6, the signal inputs of the keys 14 and 16 are connected to the output of the negative voltage source 7, the signal outputs of the keys 13 and 14 are connected to the input of the integrator 8 X, the signal outputs of the keys 15 and 16 are connected to the input of the integrator 9 U. The output of the imaging unit 1 pulses is connected through a delay element 17 to the second input of the OR 2 circuit.

The counter 3 is three-digit, the converter 4 of the code converts the three-digit binary code into four-bit binary. A magnetic system or a set of two following drives along the axes X and Y are used as a deflecting system.

SP

four

WITH

00

Go

The device also contains a sequence-after each cycle of the formatively connected memory block 18 and traversing both the integrator 8 and the 9th drive 19, elements OR 20, are reset to zero (by discharging the backwards connected to the output of the counter 3 that remembers capacitor), which prevents the one-shot vibrator 21, connected with the output from resetting the accumulation of errors in the integrators with the sovy inputs of integrators 8 and 9. You, with a large number of cycles (when welding

extended seams). The reset signal comes from the output of the one-shot 21, which generates a pulse when the counter 3 passes through the zero state, and the integrator's fixed input 8 X is connected to the input of the memory block 18. The output of the pulse former 1 is connected to the write enable input of the memory unit 18.

Memory block 18 is analog. A reverse current speed controlled drive 19 with speed control (the signal from the memory unit by means of a pulse-width modulator determines the current of the core).

ten

OR 20. However, at other times, the output of the integrators 8 and 9 is nonzero, and at the times corresponding to the passage of the heat source through the device, the device operates as follows 15 from the driver 1 in the memory block 18.

In the initial state, the counter 3 is in the zero state, the keys 13 and 15 are open, the keys 14 and 16 are closed, the source 6 of the positive voltage through the integrators 8, 9 X and Y (with output signal limiting) is connected to the amplifiers 10, 11 X, Y of the deflecting system 12, the heat source is in the upper right position relative to the coordinate system X, Y (Fig. 2). When an impedance is delivered to the input of counter 3, which turns on the device, the counter changes state. The state of the four-bit output of the 4-code converter and the keys 13-16 is changed accordingly. Code 001 of the counter 3 corresponds to the state of the keys:

20

the output voltage from the integrator 8 X is recorded (at the location of the joint along the Y axis, at the location of the joint along the X axis, information is recorded into the memory block 18 from the integrator output 9 Y). This voltage characterizes the deviation of the beam from the vertical position (for the vertical position of the heat source, the output voltages of the integrators 8, 9 are zero), 25 and determines the speed of movement of the product relative to the heat source along the X axis by means of a reversing drive 19.

The device allows to increase the accuracy of the direction of the heat source along the joint and to stabilize the angle of the heat source.

13, 15 are closed, 14, 16 are open, that you are 30 to the product surface, which ultimately misses the connection of the negative voltage source 7 to the inputs of the integrators 8. 9 and the corresponding movement of the heat source in the direction 2 (Fig. 2) to the joint. When the butt intersects the heat source, the shaper of the butt sensor pulses generates a short rectangular pulse that, through the delay time determined by delay element 17, passes through the OR circuit 2 to the input of counter 3. During the delay time, the heat source moves in direction 3 (code 010), after which the direction of its movement is reversed in accordance with the state 011 of the counter.

Claims (1)

These improve the quality of welding. Invention Formula Welding device according to ed. St. 35 No. 1326406, characterized in that, in order to improve the quality of welding by stabilizing the heat source tilt angle to the surface of the products and improving the accuracy of tracking the joint, a memory block, a reversing drive for moving the product, an OR element and a one-shot are additionally introduced. the information input of the memory block is associated with the output of one of the integrators; its control 40 the input is connected to the output of the imPrivatel when crossing the joint (in the state of pulses, and the output to the reversing input 100 counters) the direction of movement of the heat-drive movement of the product, the input of the element source is changed by 90 ° (direction D), OR is associated with the output of the counter, FIG. 2), and then the heat source is driven — and its output through the one-shot is connected to c in the direction of 6 - 7-8 1, after the throw-in inputs of the canine and the second inch cycle of movement is repeated. extended seams). The reset signal comes from the output of the one-shot 21, which generates a pulse when the counter 3 passes through the zero state, fixing by the element OR 20. However, at the remaining time points, the output of the integrators 8 and 9 is nonzero, and at the time points corresponding to the passage of the joint by the heat source along imp the output voltage from the integrator 8 X is recorded (at the location of the joint along the Y axis, at the location of the joint along the X axis, information is recorded into the memory block 18 from the integrator output 9 Y). This voltage characterizes the deviation of the beam from the vertical position (for the vertical position of the heat source, the output voltages of the integrators 8, 9 are zero), 5 and determines the speed of movement of the product relative to the heat source along the X axis by means of a reversible drive 19. The device allows to increase the accuracy of the direction of the heat source along the joint and to stabilize the angle of the heat source. These improve the quality of welding. Invention Formula Welding device according to ed. St. No. 1326406, characterized in that, in order to improve the quality of welding by stabilizing the angle of heat source to the surface of products and improving the accuracy of tracking the joint, a memory block, a reversing drive for moving the product, an OR element and a single vibrator are additionally introduced, while the input of the memory unit is connected with the output of one of the integrators, its control IG eleven Fig.Z