JP5854768B2 - Processing equipment - Google Patents

Description

  In the present invention, when welding or cutting a workpiece, the welding torch or cutting torch is mounted and moved relative to the workpiece, or the workpiece is mounted and welded torch or cutting. The present invention relates to a small processing apparatus that moves relative to a torch.

  Work materials such as steel plates and stainless steel plates are moved with a torch such as a welding torch or a plasma cutting torch or a gas cutting torch, and the torch and the work material are moved relative to each other, and the operation of the torch is controlled during the movement process. Then, welding or cutting is performed. When performing welding or cutting on a workpiece, there are cases where a large processing device that controls many operations by a computer and a small processing device that operates many operations by an operator, Each has been widely adopted.

  In particular, in the case of a small processing device, in order to move the torch and the workpiece relative to each other, the workpiece is placed immovably and the driving direction and the traveling speed of the carriage equipped with the torch are set and driven. ing. In addition, the rotation direction and the rotation speed of the turntable in which the torch is installed immovably and the workpiece is fixed may be set and driven. In such a processing apparatus, in order to set the traveling direction of the carriage or the rotation direction of the turntable, a changeover switch having a relatively simple structure such as a snap switch is generally used. Also, a volume (variable resistor) is generally used to set the traveling speed or rotational speed.

  When performing welding on the workpiece, energization (ignition) and gas supply to the welding torch are performed. In particular, when welding is started, a waiting time is required until the arc is stabilized. When welding is completed, overlap welding for linking with the bead at the welding start site and overlaying on the crater are performed. Time for crater welding or the like is required. For this reason, it is common to use a timer for setting these times.

  When cutting a workpiece, plasma gas is supplied to the cutting torch and energized (ignited) in the case of plasma cutting. In the case of gas cutting, oxygen gas and fuel are supplied to the cutting torch. Gas supply and ignition of the supplied gas are performed. In the case of a small processing apparatus, a push button switch is generally used to perform such energization (ignition) operation and gas supply operation.

  In the above-described small processing apparatuses conventionally used, since many switches including a snap switch, a volume, a push button switch, and a timer are used, the arrangement on the operation panel becomes complicated and the cost is reduced. It becomes an obstacle in the above.

  An object of the present invention is a small processing apparatus for welding or cutting a workpiece, and a processing apparatus capable of reducing parts by providing each switch with several combined functions. Is to provide.

In order to solve the above problems, a processing apparatus according to the present invention is a processing apparatus for moving a work material and a torch for welding or cutting the work material relatively and linearly, and has a desired operation. One variable resistor having a plurality of index set points set in advance corresponding to the one of the plurality of index set points set in the variable resistor is pressed to perform a desired operation. One push button switch to be set, at least two indicator lamps flashing corresponding to the target operation, and the target operation set corresponding to the operation of the push button switch and the current value from the variable resistor And the flashing state of the at least two indicator lamps set in correspondence with the operation, and from the first index set point set in the variable resistor when the processing device is stopped Signal consisting of current value When received, the relative movement direction of the workpiece and the torch is switched, the at least two indicator lights corresponding to the movement direction are turned on or blinked, and the workpiece and the torch are relatively moved. And a control device that controls to change the relative moving speed between the workpiece and the torch in accordance with a signal comprising a current value from the variable resistor . ,

And by turning on the power, selecting an index set point corresponding to the target operation from a plurality of index set points set in the variable resistor, setting the current value, and operating the push button switch , together with selecting the desired behavior, the are at least two indicator lamp is configured so that is displayed in a blinking state of being corresponding to the selected operation.

  In the processing apparatus, the one variable resistor is for setting an ignition operation mode of the torch in addition to the first index set point in order to set a relative moving direction of the workpiece and the torch. A second index set point, and when the processing device is stopped, the control device receives a signal comprising a current value from the first index set point of the variable resistance, and the workpiece and the torch Of the torch when the relative movement direction is switched, the at least two indicator lamps corresponding to the movement direction are turned on or blinked, and a signal comprising a current value is received from the second index set point And at least two indicator lamps corresponding to the moving direction are turned on or blinked, and further, when the workpiece and the torch are relatively moving, a signal comprising a current value from the variable resistor According to the above The control is performed so as to change the relative moving speed, and the variable resistor is operated when the processing apparatus is stopped, and the signal including the current value from the first index set point and the second index set point A signal composed of a current value from the torch is transmitted to the control device to set the relative movement direction of the workpiece and the torch and the ignition operation mode of the torch, and the at least two indicator lamps corresponding to the movement direction are turned on. Alternatively, it is preferable that the flashing is performed and the push button switch is operated to operate the torch in the set ignition operation mode and the workpiece and the torch are relatively moved.

Also, other processing apparatus is a processing apparatus for welding have a turntable for rotating the workpiece, by relatively moving the torch to weld the該被workpiece, corresponds to the desired behavior One variable resistor having a plurality of index setting points set in advance and one of the plurality of index setting points set in the variable resistor is pressed to set a target operation One pushbutton switch, at least two indicator lamps flashing corresponding to the target action, the target action set corresponding to the operation of the pushbutton switch and the current value from the variable resistor, A control device that stores the blinking states of the at least two indicator lamps set in correspondence with the operation, from a plurality of index set points set in the variable resistor by turning on the power Adapt to the desired behavior The target operation selected by selecting the index set point and setting the current value and operating the push button switch for a predetermined time or more is the overlap time or the rotation time after the rotation table makes one rotation. Either the crater time, which is the operating time of the torch after the table is stopped, or the arc stabilization time at the start of welding, and the selected operation of the at least two indicator lamps according to the selected operation It is configured to display in a lighting or blinking state corresponding to the.

  The processing apparatus according to the present invention includes one pushbutton switch for setting an operation, one variable resistor, at least two indicator lights, the length of operation time of the pushbutton switch, and the variable resistor. And a control device that stores the operation set in correspondence with the current value and the blinking state of the two indicator lights set in correspondence with the operation. Therefore, by turning on the power and selecting the index of the variable resistor, the target operation can be selected by operating the pushbutton switch, and the two indicator lights are made to correspond to the selected operation. The flashing state can be changed.

  In this way, the operation of the processing device can be controlled by a push button switch, variable resistor, two indicator lights, and a control device, and the number of switches arranged on the operation panel can be reduced, making it easy to see. An operation panel can be realized. Further, the cost can be reduced by reducing the number of switches.

  When the processing device according to the present invention is a device that linearly cuts or welds the workpiece, the current value from the first index set point of the variable resistor when the processing device is stopped by the control device. When a signal consisting of (hereinafter referred to as “current value signal”) is received, the relative movement direction of the workpiece and the torch is switched, and the at least two indicator lamps corresponding to the movement direction are turned on or blinked. Therefore, by recognizing the current signal from the first index set point set in one variable resistor, the moving direction is set, and the set moving direction is determined by lighting or blinking of the two indicator lamps. Can be displayed.

  Further, when the workpiece and the torch are moving relatively, the relative movement speed of the workpiece and the torch can be changed according to the current value signal from the variable resistor. Accordingly, it is possible to set the moving direction or the moving speed in accordance with the presence or absence of relative movement between the workpiece and the torch.

  Furthermore, one variable resistor has a second index set point for setting the ignition operation mode of the torch in addition to the first index set point, and the control device is configured so that the processing device is stopped. When a current value signal is received from the second index set point, control is performed so as to set the ignition operation mode of the torch. Then, when the processing device is stopped, the variable resistor is operated to transmit the current value signals from the first and second index set points to the control device, and the relative movement between the workpiece and the torch is performed. Set the direction and the ignition operation mode of the torch, turn on or blink two indicator lights corresponding to the moving direction, operate the push button switch to operate the torch in the set ignition operation mode, and By moving the torch relatively, the torch can be operated in accordance with a preset ignition operation mode, and cutting or welding can be performed on the workpiece.

Further, when the processing apparatus according to the present invention is a welding apparatus having a rotary table that rotates a workpiece, the power is turned on, the index of the variable resistor is selected, the current value is set, and the pushbutton switch is made. Either the overlap time, which is the rotation time after one turn of the turntable, or the crater time, which is the torch operating time after the turntable stops, or the arc stabilization time at the start of welding And the two indicator lights can be turned on or blinked according to the selected operation. For this reason, switches provided for each operation can be reduced, and an operation panel that can be easily viewed and operated can be realized.

  In particular, by selecting a target operation and setting a time corresponding to the selected operation through a program, the last set time for each operation can be stored and held. Therefore, when the same work is repeated, the work with the same specification can be realized by setting the time once.

It is a three-view figure explaining the whole structure of the welding apparatus which concerns on 1st Example. It is a figure explaining the operation panel of the welding apparatus which concerns on 1st Example. It is a block diagram explaining the control system of the welding apparatus which concerns on 1st Example. It is a flowchart explaining the operation procedure of the welding apparatus which concerns on 1st Example. It is a perspective view explaining the whole structure of the welding apparatus which concerns on 2nd Example. It is a time chart of the welding apparatus which concerns on 2nd Example. It is a flowchart at the time of setting operation | movement of the welding apparatus which concerns on 2nd Example.

  The processing apparatus according to the present invention will be described below. The processing apparatus according to the present invention performs processing such as welding or cutting in the process of relatively moving a workpiece typified by a steel plate such as a steel plate or a stainless steel plate and a torch such as a welding torch or a cutting torch. Device. In particular, the processing apparatus according to the present invention is configured such that an operator performs an operation for relatively moving the workpiece and the torch, and a time for each operation necessary for welding, and is generally an automatic processing apparatus. Or what is called a semi-automatic processing apparatus.

  The structure for relatively moving the workpiece and the torch is not particularly limited. For example, when the work material is large like a hull material or a bridge material, the work material is installed immovably and the torch is mounted on the traveling carriage and moved. When the processing apparatus is configured as a traveling carriage, the traveling carriage is configured to be capable of reciprocating on a straight line, and can be welded or cut by operating a torch mounted in the traveling process.

  Further, when the workpiece is relatively small and is processed along the circumference, the torch is installed immovably, and the workpiece is fixed to the turntable and moved. In the case where the processing apparatus has a turntable, the turntable is configured to be able to rotate clockwise and counterclockwise, and in the process of rotating the turntable, the torch installed in the vicinity of the turntable is operated. And can be welded or cut.

  In the present invention, any of a traveling cart or a device having a turntable can be employed as the processing device. In particular, an apparatus having a turntable has a structure called a positioner, which is a kind of welding jig, and can be preferably applied.

  As the torch for welding, various welding torches including a torch for performing carbon dioxide arc welding, a torch for performing plasma welding, and the like can be selectively employed. As the torch for cutting, a torch for performing gas cutting, a torch for performing plasma cutting, or the like can be selectively employed.

  When the torch is a welding torch, the ignition operation mode of the torch includes, as a welding auto mode, gas supply to the torch, energization, wire supply, and start of movement of the traveling carriage or turntable after welding has started. There are a series of actions including: In addition, the welding test mode includes an operation of moving the traveling carriage or the turntable without energizing the torch, or an operation of energizing without moving the traveling carriage or the turntable.

  When the torch is a plasma cutting torch, the ignition operation mode of the torch includes a series of operations including supply of plasma gas to the torch, energization, and start of movement of the traveling carriage or turntable after the cutting is started. Further, when the torch is a gas cutting torch, there are a series of operations including the supply and ignition of preheated oxygen and fuel gas to the torch, the supply of cutting oxygen after a predetermined time has elapsed, and the start of movement of the traveling carriage or turntable.

  Also, in the case of welding work, it takes some time (arc stabilization time) for the arc to stabilize when an arc is formed between the torch and the workpiece and welding is started. It is necessary to stop the material and the torch. Further, in the welding operation, overlap welding for ensuring the continuity of the bead at the start of welding and the bead at the end of welding, and crater-treated welding for processing craters generated in the bead at the end of welding are required.

  The time for overlap welding, including the arc stabilization time, and the time for crater treatment vary depending on the welding conditions including the plate thickness of the workpiece, and each time the welding conditions change, the work Generally set prior to start.

  Hereinafter, the processing apparatus according to the first embodiment will be described with reference to FIGS. The processing apparatus according to the present embodiment is configured as a welding apparatus having a traveling carriage A corresponding to a straight welding line, on which a carbon dioxide welding torch is mounted as the torch B.

  As shown in FIG. 1, the traveling carriage A is provided with a motor 26 a (described later), a transmission device (not illustrated) that transmits the rotation of the motor to the wheels 2, and a control device 25 (described later). A plurality of wheels 2 are arranged at the lower part of the casing 1.

  An operation panel 3 shown in FIG. 2 is provided on the upper surface of the casing 1. The operation panel 3 includes a connector 4 to which a power cord (not shown) is connected, a push button switch 5, and a volume 6 constituting a variable resistor. The LEDs 7 and 8 for displaying the operating state of the welding apparatus are arranged.

  The push button switch 5 has a function of controlling the start / stop of traveling of the traveling carriage A. That is, when the traveling carriage A is in the stopped state, the push button switch 5 is pushed to start running, and when the running carriage A is in the running state, the push button switch 5 is pushed to stop. It is configured.

  The volume 6 has a composite function including a function as a speed regulator and a function as a switch for generating a signal (current value signal) including a current value. That is, the volume 6 exhibits a speed adjustment function or a function as an operation condition changing means according to whether the traveling carriage A is in a traveling state or in a stopped state.

  When the traveling carriage A is in a traveling state, the volume 6 exhibits a speed adjusting function, and the traveling speed is designated by designating the dial indicating portion 6a in any of the range of 0 to 10 of the index 6b. It is possible to adjust it to a different value.

  In addition, when the traveling carriage A is in the stop state, the volume 6 is set to the index set points (first index set point 6A, second index set point 6B, preset) corresponding to the two positions on the index 6b. The function as an operation condition changing means having (see FIG. 3) is exhibited. That is, when the traveling carriage A is stopped, the volume 6 does not perform the speed adjustment function, and the indication unit 6a of the volume 6 is set in advance as the first index set point 6A and the second index set point 6B of the index 6b. The first signal or the second signal can be generated by matching the position. In this embodiment, the first index set point 6A is set as the 0 position of the index 6b, and the second index set point 6B is set as the 10 position of the index 6b.

  In this embodiment, a volume 6 which is a variable resistor is employed as a speed regulator. Therefore, the speed can be adjusted steplessly, and a preset position can be used as an index set point. However, the present invention is not limited to this configuration, and a switch having a plurality of contacts is adopted so that the speed can be adjusted in stages, and each independent contact is selected to select a first index set point or A second index set point may be set.

  LED7, which is one of the two indicator lamps, has a function of displaying the welding mode. When it is not lit, the test mode is selected. When it is lit, the auto mode is selected. The inside is displayed. However, the relationship between the lighting state of the LED 7 and each welding mode is not limited to the above-described state, and can be set as appropriate.

  The LED 8 which is one of the two indicator lamps has a function of displaying the traveling direction. When the LED 8 is off, the LED 8 indicates that the traveling direction is the arrow a direction, and when it is lit, the traveling direction is displayed. Is displayed in the direction of the arrow b, while the blinking indicates that the vehicle is traveling. However, the relationship between the lighting state of the LED 8 and the traveling direction is not limited to the above state, and can be set as appropriate.

  Contact sensors 9 and 10 are arranged on both end surfaces of the casing 1 in the traveling direction (both end surfaces in the directions of arrows a and b), respectively, and are not shown in correspondence with the end portions of the target weld line. Is provided, and the traveling carriage A is stopped by colliding with the dog.

  A stand 15 is provided on the upper part of the casing 1, and a torch holder 16 configured to be adjustable in the vertical direction and in the directions of the arrows c and d is held by the stand 15. A welding torch B is held on the torch holder 16. Therefore, the welding torch B is configured to be set at desired positions in the vertical direction and the exit / entry direction (arrow c and d directions) on the side surface of the casing 1 by operating the stand 15.

  A pair of guide rollers 18 are disposed on the surface of the casing 1 where the welding torch B is disposed, with the welding torch B interposed therebetween. The guide roller 18 is rotatably supported by a support arm 19 configured so that the size of the entrance and exit can be adjusted with respect to the casing 1, and is in contact with a guide (not shown) provided along a target welding line. The travel direction of A can be guided.

  Next, the control system of the traveling carriage A will be described with reference to the block diagram of FIG.

  In the figure, reference numeral 25 denotes a control device, an arithmetic processing unit 25a, a discriminating unit 25b, and a storage unit that stores an operation program and temporarily stores the currently set traveling direction and torch ignition operation mode. 25c. Reference numeral 26a denotes a motor driven by a driver 26b.

  The storage unit 25c of the control device 25 stores an operation program for performing the intended machining that the machining apparatus has. That is, an optimum operation program is set in accordance with whether the purpose of the processing apparatus is welding or cutting, and according to the conditions of the torch to be used. In this embodiment, since the target processing is welding and the torch B to be used is a carbon dioxide welding torch, an operation program is set and stored in advance so that the carbon dioxide welding can be started and continued in a good state. Has been.

  When the traveling vehicle A is stopped, the storage unit 25c receives the first signal from the 0 position of the index 6b corresponding to the first index set point 6A of the volume 6, and An ignition operation mode of the torch B when the traveling direction is switched so as to travel in the direction opposite to the set traveling direction and a signal from the position 10 of the index 6b corresponding to the second index setting point 6B is received. The test mode or the auto mode consisting of a series of operations such as gas supply to the torch B, energization, and wire supply is switched. Further, when the traveling carriage A is currently traveling, the signal from the volume 6 is switched. An operation program for changing the traveling speed is stored.

  Reference numeral 27 denotes a drive unit for the torch B. The valve mechanism for supplying and shutting off the gas to the torch B, the power supply device for energizing the torch B, the wire supply device, and the time after energization to the torch B is measured and set in advance. When a predetermined time has elapsed, a timer mechanism or the like that transmits a signal to the motor driver 26b to rotate the motor 26a is included. However, the configuration of the drive unit 27 of the torch is not limited to the above-described configuration. For example, depending on conditions such as whether the torch B is a carbon dioxide welding torch, a plasma cutting torch, or a gas cutting torch. Are set as appropriate.

  Reference numeral 28 denotes an interface.

  Next, the operation procedure of the processing apparatus configured as described above will be described with reference to the flowchart of FIG.

  First, when the power of the traveling vehicle A is turned on, in step S1, the traveling direction of the traveling vehicle A and the ignition operation mode of the torch that have been set in the previous work and are already stored in the storage unit 25c of the control unit 25 are read. The LEDs 7 and 8 are operated in correspondence with the travel direction and the torch ignition operation mode that are read out and read out.

  In step S2, it is confirmed whether or not the traveling carriage A is traveling. Since the traveling carriage A is stopped when the power is turned on, the current traveling direction of the traveling carriage A is confirmed from the lighting state of the LED 8 in this state. For example, the LED 8 is turned off when the previous traveling direction is the arrow a direction, and the LED 8 is turned on when the traveling direction is the arrow b direction. Therefore, the worker can recognize the currently set traveling direction of the traveling carriage A before setting the traveling direction of the traveling carriage A.

  As described above, in step S2, when the traveling carriage A is in a stopped state, the volume 6 functions as an operation condition setting means, and is set to a preset position (in the present embodiment, 0 of the index 6b). 10), the first signal corresponding to the first index set point 6A and the second signal corresponding to the second index set point 6B can be generated. In FIG. 4, the first index set point 6A is displayed as a first contact, and the second index set point 6B is displayed as a second contact.

  When the traveling direction of the traveling carriage A necessary for performing the target welding is the same as the previous traveling direction confirmed in step S1, the indication unit 6a of the volume 6 is set to the index 6b (0 and 0) corresponding to the target traveling speed. Set to the position excluding 10). In this case, since the instruction unit 6a does not match the first index set point 6A in step S3 and the second index set point 6B in step S4, the instruction unit 6a proceeds to step S5 and presses the pushbutton switch 5. Until it is operated, the traveling carriage A maintains a stopped state.

  When the push button switch 5 is pressed in step S5, the process proceeds to step S10 to drive the driver 25b and the motor 26a, and the traveling carriage A is instructed by the instruction unit 6a in the same direction as the previous traveling direction. The vehicle starts traveling at a speed corresponding to 6b. At this time, the LED 8 repeats blinking. In this state, the volume 6 exhibits a speed adjustment function, and can be adjusted to a target travel speed by adjusting the indication unit 6a to a desired position of the index 6b.

  When the traveling direction of the traveling carriage A necessary for performing the target welding is different from the previous traveling direction confirmed in Step S1, the stopped state of the traveling carriage A in Step S2 is maintained, and the process proceeds to Step S3. The indication unit 6a of the volume 6 is set to the 0 position of the index 6b constituting the first index set point 6A. As a result, the process proceeds to step S8, where the first signal is generated from the volume 6 and transmitted to the control unit 25, and the traveling direction of the traveling carriage A is switched according to the operation program stored in the storage unit 25c.

  For example, when the traveling direction set in the previous work is the direction of arrow a, the traveling direction is switched to the direction of arrow b due to the occurrence of the first signal. As the traveling direction of the traveling carriage A is switched, the lighting state of the LED 8 also changes. That is, the LED 8 is turned off when the traveling direction set for the traveling carriage A is the direction of the arrow a, but is turned on when the traveling direction is switched to the direction of the arrow b.

  After the traveling direction of the traveling carriage A is switched in step S8, the process proceeds to step S5 and the push button switch 5 is pressed to proceed to step S10, and the traveling carriage A is caused to travel in the switched direction. As the traveling carriage A starts traveling, the LED 8 shifts from a lighting state to a blinking state.

  In step S4, the welding mode is switched. That is, in a state where the traveling carriage A is stopped, the process proceeds to step S4, and the indication section 6a of the volume 6 is set to the position of the index 6b constituting the second index set point 6B. As a result, the process proceeds to step S9, where the second signal is generated from the volume 6 and transmitted to the control unit 25, and the ignition operation mode of the torch B is alternately switched according to the operation program stored in the storage unit 25c.

  That is, the ignition operation mode of the torch B is switched to the test mode or the auto mode in accordance with the second signal generated when the indication unit 6a is set to the position 10 of the index 6b. When the test mode is set, the traveling carriage A can be manually operated without supplying carbon dioxide gas to the torch B or energizing it. At this time, the LED 7 is turned off.

  Further, when the auto mode is set, the LED 7 is turned on. Then, when the push button switch 5 is pushed by moving from step S5 to step S10, the drive unit 27 of the torch is actuated to supply the carbon dioxide gas to the torch B by the valve mechanism, start energization by the power supply device, The supply of the wire by the supply device, the time measurement until the motor 26a is rotated after the start of energization to the torch B by the timer mechanism are sequentially performed, and after the welding operation is stabilized, the traveling carriage A travels in the set traveling direction. Welding is performed during the running process.

  When the target machining by the machining apparatus is to be terminated, it is confirmed in step S2 that the traveling of the traveling carriage A is continued, the process proceeds to step S6, and when the push button switch 5 is pressed, the process proceeds to step S7. Proceeding, the driver 26b and the motor 26a are stopped, and the traveling carriage A is stopped.

  As described above, the traveling direction of the traveling carriage A can be switched to a desired direction, and the ignition operation mode of the torch B can be switched to a desired mode.

  For this reason, it is possible to eliminate the switch for setting the traveling direction and the switch for setting the ignition operation mode of the torch, which are provided in the conventional traveling carriage, reducing the number of parts and making the operation panel 3 effective. It becomes possible to utilize it.

  Next, the structure of the processing apparatus according to the second embodiment will be described with reference to the drawings. The processing apparatus according to the present embodiment is configured as a welding apparatus having a positioner including a turntable to which a workpiece is attached and a drive unit that rotates the turntable. Further, the structure of the drive system and control system for driving the positioner is substantially the same as that of the first embodiment described above in principle.

  That is, the processing apparatus of the first embodiment performs a substantially linear cutting or welding process on the workpiece by the torch B mounted on the traveling carriage A, whereas in the present embodiment, the positioner applies the workpiece to the workpiece. It differs in that welding is performed along the circumference. Accordingly, although there is a slight difference in detail due to these differences, the principle is the same. Therefore, FIG. 2 for explaining the operation panel, FIG. 3 for explaining the control system, and FIGS. 5 to 7 will be used for explanation. To do.

  First, the positioner C constituting the processing apparatus according to the present embodiment will be briefly described with reference to FIG. The positioner C includes a turntable 31 for mounting a workpiece (not shown), a casing 32 having a motor 26a for driving the turntable 31, a frame 33 for rotatably supporting the casing 32, and a switch for starting a welding operation. And a foot switch 34. An operation panel 3 shown in FIG. 2 is provided on the front surface of the casing 32.

  A contact type or non-contact type sensor 9 for detecting the origin of the turntable 31 is disposed on the frame 33. The signal generated from the sensor 9 can detect whether or not the turntable 31 is at the origin and whether or not it has made one revolution after starting welding. Further, when it is detected by the signal generated from the sensor 9 that the turntable 31 has made one rotation, it is possible to start overlap welding with this signal as a starting point.

  A welding torch (not shown) is disposed in the vicinity of the positioner C and faces a portion to be welded in the workpiece. Then, a welding wire is supplied from the welding torch, an arc is formed between the workpiece and the workpiece, and the turntable 31 is rotated while holding the arc, so that the intended welding process can be performed.

  FIG. 6 is a time chart of one cycle when a workpiece is attached to the turntable 31 of the positioner C and welding is performed. Welding to the workpiece is started by a signal from the foot switch 34. A continuous welding signal and a pulsed welding signal are generated simultaneously with the start signal or after a short time, and a welding arc is formed simultaneously with these signals. The pulsed welding signal has a function of stabilizing the arc at the start of welding, and is generated only for the arc stabilization time T1.

  After the arc stabilization time T1 has elapsed, the turntable 31 starts to rotate and welding to the workpiece proceeds. When the sensor 9 detects that the turntable 31 has made one revolution and a signal is generated, welding is continued for the overlap time T2 starting from this signal, and overlap welding is performed on the bead at the start of welding.

  After the overlap welding is completed, welding is performed to build up the crater generated in the bead. In this welding, the torch is operated in a state in which the workpiece is stopped, thereby performing intensive build-up on the crater. For this reason, after the overlap time T2 has elapsed, the turntable 31 is stopped, the continuous welding signal is stopped, and a pulsed welding signal is generated at the same time, and welding is continued for the crater time T3. Done.

  When the crater time T3 elapses, the pulse welding signal stops and the arc stops, and the turntable 31 rotates in the direction opposite to the rotation direction during welding and turns when the origin is detected by the sensor 9. The table 31 stops rotating and returns to the initial position. When the turntable 31 returns to the initial position, one cycle of the welding operation is completed. Then, when the material to be welded is exchanged or when welding to another part of the material to be welded is performed, the position of the torch is changed and a new cycle is executed.

  In the above-described one cycle welding operation, the arc stabilization time T1, the overlap time T2, and the crater time T3 are set according to the welding conditions for the workpiece. For this reason, each said time T1-T3 is comprised so that it can set suitably, and it is comprised so that each time T1-T3 currently set can be changed suitably.

  In this embodiment, the ranges 0 to 10 of the index 6b that is a variable region of the volume 6 are defined in correspondence with the arc stable mode, the overlap mode, and the crater mode. The operation mode can be selected by recognizing that the current value signal corresponding to the defined index and the duration of the signal from the pushbutton switch 5 is equal to or longer than the set time. ing. Furthermore, it is configured such that any one of the arc stabilization time T1, the overlap time T2, and the crater time T3 in the selected operation mode can be changed by the selection of the index 6b by the instruction unit 6a.

  Further, when the operation mode is selected by the push button switch 5 and the position of the index 6b of the volume 6, the two LEDs 7 and 8 can be lit, extinguished or blinked independently of each other corresponding to the selected operation mode. It is configured as follows. In particular, since it may be difficult to discriminate between the two LEDs 7 and 8 having the same color, in this embodiment, the LED 7 emits yellow light and the LED 8 emits green light.

  How to distribute the range of 0 to 10 of the index 6b of the volume 6 to the operation mode is not limited, and it is divided and set according to the number of operation modes that need to be set and changed. It is preferable to adjust the width and position in accordance with the frequency of change.

  In this embodiment, the overlap mode that is set or changed relatively frequently is set in the range of 0 to 5 of the index 6b of the volume 6, the set time of the overlap time T2 is set to 0 to 10 seconds, One second is allocated for each indicator. The crater mode is set in the range of 6 to 7 of the index 6b of the volume 6, the set time of the crater time T3 is set to 0 to 10 seconds, and 1 second is assigned to each index. Further, the arc stabilization mode is set to the position 8 of the index 6b of the volume 6, the arc stabilization time T1 is set to 0 to 1 second, and 0.1 second is assigned to each index.

  The operation mode is set or changed by recognizing the current value signal from the volume 6 and the duration of the signal generated from the push button switch 5. The operation duration time of the push button switch 5 is not particularly limited. However, the pushbutton switch 5 is not only used for setting and changing the operation mode, but also used when welding is started again. For this reason, it is preferable that the time is set so that it can be clearly distinguished from signals for other work. In the present embodiment, the operation duration time of the push button switch 5 when setting or changing the operation mode is set to 5 seconds or more.

  Next, a procedure (parameter changing procedure) for changing the currently set arc stabilization time T1, overlap time T2, and crater time T3 for each operation mode will be described using the flowchart of FIG. In order to prevent complicated explanation, a procedure for changing the overlap time T2 in the overlap mode on behalf of each operation mode will be described. It is assumed that the rotation speed and rotation direction of the turntable 31 are already set.

  In step S21 after parameter change is started, the index 6b of the volume 6 corresponding to the operation mode to be changed (the overlap mode in this description) is selected. In other words, the indication unit 6a is made to correspond to any index in the range of 0 to 5 of the index 6b of the volume 6 (when the arc stabilization mode is selected, the crater mode is selected at the position 8 of the index 6b. In this case, it corresponds to the range of 6 to 7 of the index 6b).

  By proceeding to step S22 and operating the pushbutton switch 5 for 5 seconds or longer, it is recognized that the selected operation mode is the overlap mode through steps S21 and S22, and then the volume control is performed. It is recognized that the current value signal transmitted from 6 corresponds to the overlap time.

  Next, the process proceeds to step S23, where the desired overlap time is set by operating the instruction unit 6a of the volume 6. For example, when it is desired to set the overlap time to 5 seconds, the overlap time T2 is set by aligning the instruction unit 6a with the position 5 of the index 6b.

  In step S24, a comparison with the overlap time T2 set in the previous operation is performed according to the rotation of the instruction unit 6a when setting the overlap time T2, and the LEDs 7, 8 are compared according to the comparison result. Lights up, turns off, or flashes. For example, if the overlap time is set to 6 seconds during the previous work, when the instruction unit 6a matches the position 6 of the index 6b in step S23, the LEDs 7 and 8 are simultaneously turned on in step S25. Further, when the indicator 6a is slightly separated from the position 6 of the index 6b (in the range of one to one and a half of the index, 4.5 to 7.5 of the index 6b), the LED 7 is moved at a high speed in step 26. It blinks and LED8 turns off. Further, when the indicator 6a is sufficiently separated from the position 6 of the index 6b (the range of 0 to 4.5 of the index 6b or the range of 7.5 to 10 of the index 6b), the LED 7 blinks at a low speed in step S27. Then, the LED 8 is turned off.

  By confirming the lighting, extinguishing and blinking states of the LEDs 7 and 8 in step S24, the difference between the overlap time T2 set at the previous work and the overlap time T2 set this time is sensibly recognized. Is possible.

  After the overlap time T2 is set in step S23, a signal is generated by pressing the push button switch 5 in step 28. In step S29, the overlap time T2 (6 seconds set in the previous work) is set. ) Is changed to the current overlap time T2 (5 seconds).

  Next, when the instruction unit 6a of the volume 6 is rotated in step S30, the speed set at the previous work in step S31 and the speed set for the index indicated by the current instruction unit 6a are obtained. If the two match, the LEDs 7 and 8 are turned on simultaneously in step S32.

  If the speed set for the index indicated by the instruction unit 6a is slightly different from the speed set during the previous work, the LED 7 blinks at a high speed and the LED 8 is turned off in step 33. In this case, the process returns to step S30, and the instruction unit 6a is rotated in either direction until the LEDs 7 and 8 are simultaneously turned on, and the process proceeds to step S32.

  Further, when the speed set in the index indicated by the instruction unit 6a is sufficiently separated from the speed set during the previous work, the LED 7 blinks at a low speed in step S34, and the LED 8 Turns off. In this case, the process returns to step S30, and the instruction unit 6a is rotated in either direction until the LEDs 7 and 8 are simultaneously turned on, and the process proceeds to step S32.

  By performing the above operation for each operation mode to be set or changed, it is possible to perform welding on the workpiece under optimum conditions.

  The processing apparatus according to the present invention can be used for a welding apparatus or a cutting apparatus.

A Traveling carriage B Torch C Positioner 1 Casing 2 Wheel 3 Operation panel 4 Connector 5 Pushbutton switch 6 Volume 7, 8 LED
6a Indicator 6b Index 6A First index set point 6B Second index set point 9, 10 Contact sensor 15 Stand 16 Torch holder 18 Guide roller 19 Support arm 25 Controller 25a Arithmetic processor 25b Discriminator 25c Storage unit 26a Motor 26b Driver 27 Drive part of torch B 28 Interface 31 Turntable 32 Casing 33 Frame 34 Foot switch

Claims (3)

A processing apparatus for moving a work material and a torch for welding or cutting the work material relatively and linearly ,
One variable resistor having a plurality of preset index points corresponding to the target operation;
One pushbutton switch that is pressed when one of a plurality of index setting points set in the variable resistor is selected to set a desired operation;
At least two indicator lights that flash in response to the desired action;
The operation of the push button switch, the target operation set corresponding to the current value from the variable resistor, and the blinking state of the at least two indicator lamps set corresponding to the operation are stored. When the processing device is stopped, when a signal consisting of a current value is received from the first index set point set in the variable resistor, the relative movement direction of the workpiece and the torch is switched and moved. When the at least two indicator lamps corresponding to the direction are turned on or blinked, and the workpiece and the torch are moving relatively, the workpiece according to a signal comprising a current value from the variable resistor And a control device for controlling to change the relative moving speed between the torch and the torch ,
By turning on the power and selecting an index set point corresponding to the target operation from a plurality of index set points set on the variable resistor, setting the current value and operating the push button switch, A processing apparatus, wherein the at least two indicator lights are displayed in a blinking state corresponding to the selected operation. The one variable resistor has a second index set point for setting the ignition operation mode of the torch in addition to the first index set point for setting the relative movement direction of the workpiece and the torch. Have
The control device switches and moves the relative movement direction of the workpiece and the torch when receiving a signal composed of a current value from the first index set point of the variable resistance when the processing device is stopped. The at least two indicator lamps corresponding to the direction are turned on or blinked, and when a signal composed of a current value is received from the second index set point, the ignition operation mode of the torch is set and the movement direction is also supported. The at least two indicator lights are turned on or blinked, and when the workpiece and the torch are relatively moving, the relative moving speed is set according to a signal consisting of a current value from the variable resistor. Control to change,
When the processing device is stopped, the variable resistor is operated to transmit a signal composed of the current value from the first index set point and a signal composed of the current value from the second index set point to the control device. The relative movement direction of the workpiece and the torch and the ignition operation mode of the torch are set, the at least two indicator lamps corresponding to the movement direction are turned on or blinked, and the push button switch is operated. The processing apparatus according to claim 1, wherein the torch is configured to operate in a set ignition operation mode and to relatively move the workpiece and the torch. A processing apparatus for have a turntable for rotating a workpiece, which welding torch for welding a該被workpiece are relatively moved,
One variable resistor having a plurality of preset index points corresponding to the target operation;
One pushbutton switch that is pressed when one of a plurality of index setting points set in the variable resistor is selected to set a desired operation;
At least two indicator lights that flash in response to the desired action;
The operation of the pushbutton switch and the target operation set corresponding to the current value from the variable resistor, and the blinking state of the at least two indicator lamps set corresponding to the operation are stored. A control device,
Turning on the power, selecting an index set point corresponding to the target operation from a plurality of index set points set on the variable resistor, setting the current value, and operating the push button switch for a predetermined time or more The target operation to be selected is the overlap time that is the rotation time after one rotation of the turntable, the crater time that is the operation time of the torch after the turntable stops, or the arc stabilization time at the start of welding The processing apparatus, wherein the at least two indicator lights are displayed in a lighting or blinking state corresponding to the selected operation in accordance with the selected operation.