A welding waveform simulation device

Abstract

The utility model provides a kind of welding waveform simulation device, it is related to digital electric welding machine technical field, the device includes: main control unit;Control signal receiving unit, its input end is connected to electric welding machine control signal, its output end is connected with main control unit communication;Current simulation output unit, its input end is connected with main control unit communication, its output end is connected to electric welding machine current sampling circuit;Voltage simulation output unit, its input end is connected with main control unit communication, its output end is connected to electric welding machine voltage sampling circuit;Man-machine interactive unit, with main control unit two-way communication connection.The utility model is applicable to different models electric welding machine, simplify the test work in method development process, there is certain application value.Meanwhile test process time consumption is short, improves test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of digital welding machine technology, and specifically to a welding waveform simulation device based on a digital welding machine. Background Technology

[0002] Currently, digital welding machines employ various welding methods, including short-circuit, pulse, AC short-circuit, AC pulse, wire drawing, double pulse, and double short-circuit. Since different methods produce different welding current and voltage waveforms, traditional testing methods heavily rely on manual operation, visual observation, and manual recording during the development process. This results in low testing efficiency, long testing cycles, and high subjectivity when faced with so many diverse and complex welding methods. Utility Model Content

[0003] The purpose of this invention is to provide a welding waveform simulation device that can generate corresponding current and voltage signals based on the control signals of a digital welding machine. The device can output the simulated current and voltage output by the welding machine through the construction method simulation module according to the welding machine model. It can also visualize the construction method simulation information, which has certain application prospects and simplifies the testing work.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] This utility model provides a welding waveform simulation device, comprising:

[0006] Main control unit;

[0007] The control signal receiving unit has its input end connected to the control signal of the welding machine, and its output end is communicatively connected to the main control unit.

[0008] The current analog output unit has its input terminal connected to the main control unit and its output terminal connected to the welding machine current sampling circuit.

[0009] The voltage analog output unit has its input terminal connected to the main control unit and its output terminal connected to the voltage sampling circuit of the welding machine.

[0010] The human-computer interaction unit is bidirectionally connected to the main control unit.

[0011] Optionally, the control signal receiving unit includes:

[0012] The welding machine signal receiving module receives the welding machine control signal at its input end and connects to the welding machine signal conversion module at its output end.

[0013] The control signal receiving unit is connected to the main control unit via SPI communication.

[0014] Optionally, the main control unit includes: a construction method simulation module, a FLASH storage module, and a human-computer interaction module;

[0015] The input end of the construction method simulation module is connected to the welding machine signal conversion module to receive the set current and voltage values ​​of the welding machine, and the output end is connected to the current simulation output unit, the voltage simulation output unit and the FLASH storage module; the construction method simulation module is also bidirectionally connected to the human-machine interaction module.

[0016] Optionally, the human-computer interaction unit includes: a simulated construction method display module, a simulated historical record module, a personnel login module, and a welding machine model input module.

[0017] The input terminals of the simulation method display module and the simulation history record module are respectively connected to the output terminals of the human-computer interaction module;

[0018] The outputs of the personnel login module and the welding machine model input module are respectively connected to the input of the human-computer interaction module.

[0019] Optionally, the current analog output unit includes a welding current to voltage module and a first conversion module;

[0020] The welding current to voltage module receives the simulated current value sent by the construction method simulation module and outputs it to the first conversion module; the first conversion module outputs the first simulated signal to the welding machine current detection circuit.

[0021] Optionally, the voltage analog output unit includes a second conversion module;

[0022] The second conversion module receives the analog voltage value sent by the construction method simulation output module and outputs a second analog signal to the welding machine voltage detection circuit.

[0023] Optionally, both the first conversion module and the second conversion module are DA conversion modules.

[0024] Optionally, the current analog output unit is connected to the main control unit via SPI communication;

[0025] The voltage analog output unit is connected to the main control unit via SPI communication.

[0026] Optionally, the main control unit and the human-machine interface unit are connected via Ethernet. The control signal for the welding machine is an I / O signal.

[0027] Optionally, the FLASH storage module stores process simulation information, including: welding time, process method used, average simulated current, and average simulated voltage information.

[0028] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0029] This invention can generate corresponding current and voltage signals based on the control signals of a digital welding machine. It outputs simulated current and voltage signals from the welding machine according to the simulated construction method and the welding machine model. The simulated construction method display module visualizes the construction method information and has wide applicability, suitable for different models of welding machines. The storage module can also save historical simulation records. This invention simplifies the testing work in the construction method development process, greatly improves testing efficiency, and reduces testing time, thus possessing significant application value. Attached Figure Description

[0030] Figure 1 A schematic diagram of the welding waveform simulation device provided in this embodiment of the utility model;

[0031] Figure 2 A flowchart illustrating the operation of the welding waveform simulation device provided in this embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the voltage and current waveforms of the pulse method provided for an embodiment of this utility model.

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0035] Example 1:

[0036] This embodiment provides a welding waveform simulation device, such as... Figure 1 As shown, the device includes the following units:

[0037] Main control unit;

[0038] The control signal receiving unit has its input end connected to the welding machine control signal and its output end connected to the main control unit for communication.

[0039] The current analog output unit has its input terminal connected to the main control unit and its output terminal connected to the welding machine current sampling circuit.

[0040] The voltage analog output unit has its input terminal connected to the main control unit and its output terminal connected to the voltage sampling circuit of the welding machine.

[0041] The human-computer interaction unit is bidirectionally connected to the main control unit.

[0042] Specifically, the control signal receiving unit includes:

[0043] The welding machine signal receiving module receives the welding machine control signal at its input and connects to the welding machine signal conversion module at its output. The welding machine signal conversion module converts the control signal into the set current and voltage values ​​of the welding machine and transmits them to the main control unit. A low-pass filter converts the digital PWM signal into DC voltage, an operational amplifier circuit adjusts the filtered voltage to the target voltage range, and then a voltage-to-current circuit converts the voltage into a current signal.

[0044] The control signal receiving unit is connected to the main control unit via SPI communication.

[0045] The main control unit includes: a construction method simulation module, a FLASH storage module, and a human-computer interaction module;

[0046] The input end of the construction method simulation module is connected to the welding machine signal conversion module, and the output end is connected to the current simulation output unit, the voltage simulation output unit and the FLASH storage module. The construction method simulation module is also bidirectionally connected to the human-machine interaction module.

[0047] The human-computer interaction unit includes: a simulation method display module, a simulation history module, a personnel login module, and a welding machine model input module.

[0048] The input terminals of the simulation method display module and the simulation history record module are respectively connected to the output terminals of the human-computer interaction module;

[0049] The outputs of the personnel login module and the welding machine model input module are respectively connected to the input of the human-computer interaction module.

[0050] The current simulation output unit includes a welding current to voltage conversion module and a first conversion module, where the first conversion module is a DA conversion module.

[0051] The welding current to voltage module receives the simulated current value sent by the construction method simulation module and outputs it to the first conversion module; the first conversion module outputs the first simulated signal to the welding machine current detection circuit.

[0052] The voltage analog output unit includes a second conversion module, which also uses a DA conversion module.

[0053] The second conversion module receives the analog voltage value sent by the construction method simulation output module and outputs a second analog signal to the welding machine voltage detection circuit.

[0054] The aforementioned current analog output unit is connected to the main control unit via SPI communication; the voltage analog output unit is also connected to the main control unit via SPI communication.

[0055] In this embodiment, the main control unit and the human-machine interaction unit are connected via Ethernet.

[0056] The control signal for the welding machine is an I / O signal.

[0057] The aforementioned FLASH storage module stores process simulation information, including: welding time, process method used, average simulated current, and average simulated voltage.

[0058] The following is a detailed explanation of the device's workflow, introducing a simulation process for a pulse method:

[0059] First, the testers log in to the human-computer interaction unit through the personnel login module, and at the same time enter the welding machine model through the welding machine model input module.

[0060] The human-machine interaction unit sends personnel information and welding machine model information to the human-machine interaction module of the main control unit via Ethernet.

[0061] like Figure 2 As shown, during welding, the control signal receiving module receives the control signal from the welding machine, converts the signal into current and voltage information through the welding machine signal conversion module, and sends it to the main control unit through SPI communication.

[0062] After receiving the current and voltage information, the main control unit uses the welding method simulation module to determine the welding method to be used based on the received current and voltage information and the welding machine model information in the human-machine interface module, and generates a simulated current and voltage waveform that matches the welding method, such as... Figure 3 The diagram shows the voltage and current waveforms simulated by the pulse method provided in this embodiment. M1 represents voltage, and M2 represents current. The simulated current is sent to the current simulation output unit via SPI communication, and the simulated voltage is sent to the voltage simulation module via SPI communication. Simultaneously, the simulated construction method information is sent to the human-machine interaction module, which then sends the simulated construction method information to the simulated construction method display module in the human-machine interaction unit via Ethernet for visualization.

[0063] The welding current to voltage module in the current analog output unit converts the analog current value into the voltage value required by the corresponding welding machine current sampling current, and outputs the analog signal to the welding machine through DA conversion.

[0064] The voltage analog output unit converts the analog voltage value into the voltage value required by the corresponding welding machine voltage sampling circuit, and after DA conversion, outputs the analog signal to the welding machine.

[0065] After welding is completed, the simulation method record of the process simulation module is stored in the FLASH storage module and sent to the simulation history record module of the human-machine interaction unit through the human-machine interaction module. The record includes welding time, process method used, average simulation current and average simulation voltage information.

[0066] Testers can query test functions using the simulation history module.

[0067] Based on the above embodiments, this utility model generates corresponding current and voltage signals according to the control signals of the digital welding machine, outputs the simulated current and voltage of the welding machine according to the construction method simulation and the welding machine model, and the simulated construction method display module can visualize the construction method information, applicable to different models of welding machines; the storage module can also save historical simulation records. This utility model simplifies the testing work in the construction method development process, greatly improves testing efficiency and reduces time consumption, and has certain application value.

[0068] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welding waveform simulation device, characterized in that, include: Main control unit; The control signal receiving unit has its input end connected to the control signal of the welding machine, and its output end is communicatively connected to the main control unit. The current analog output unit has its input terminal connected to the main control unit and its output terminal connected to the welding machine current sampling circuit. The voltage analog output unit has its input terminal connected to the main control unit and its output terminal connected to the voltage sampling circuit of the welding machine. The human-computer interaction unit is bidirectionally connected to the main control unit.

2. The welding waveform simulation device according to claim 1, characterized in that, The control signal receiving unit includes: The welding machine signal receiving module receives the welding machine control signal at its input end and connects to the welding machine signal conversion module at its output end. The control signal receiving unit is connected to the main control unit via SPI communication.

3. The welding waveform simulation device according to claim 2, characterized in that, The main control unit includes: a construction method simulation module, a FLASH storage module, and a human-computer interaction module; The input end of the construction method simulation module is connected to the welding machine signal conversion module, and the output end is connected to the current simulation output unit, the voltage simulation output unit and the FLASH storage module. The construction method simulation module is also bidirectionally connected to the human-machine interaction module.

4. The welding waveform simulation device according to claim 3, characterized in that, The human-computer interaction unit includes: a simulated construction method display module, a simulated historical record module, a personnel login module, and a welding machine model input module; The input terminals of the simulation method display module and the simulation history record module are respectively connected to the output terminals of the human-computer interaction module; The outputs of the personnel login module and the welding machine model input module are respectively connected to the input of the human-computer interaction module.

5. The welding waveform simulation device according to claim 4, characterized in that, The current simulation output unit includes a welding current to voltage module and a first conversion module; The welding current to voltage module receives the simulated current value sent by the construction method simulation module and outputs it to the first conversion module; the first conversion module outputs the first simulated signal to the welding machine current detection circuit.

6. The welding waveform simulation device according to claim 5, characterized in that, The voltage analog output unit includes a second conversion module; The second conversion module receives the analog voltage value sent by the construction method simulation output module and outputs a second analog signal to the welding machine voltage detection circuit.

7. The welding waveform simulation device according to claim 6, characterized in that, Both the first conversion module and the second conversion module are DA conversion modules.

8. The welding waveform simulation device according to claim 6, characterized in that, The current analog output unit is connected to the main control unit via SPI communication. The voltage analog output unit is connected to the main control unit via SPI communication.

9. The welding waveform simulation device according to claim 1, characterized in that, The main control unit and the human-machine interaction unit are connected via Ethernet; The control signal for the welding machine is an I / O signal.

10. The welding waveform simulation device according to claim 3, characterized in that, The FLASH storage module stores construction method simulation information, including: welding time, construction method used, average simulated current, and average simulated voltage information.

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