An intelligent assessment device for welding and thermal cutting safety technology

Abstract

The present invention provides an intelligent assessment device for welding and thermal cutting safety technology, comprising an operation panel, wherein an air supply unit and a smoke exhaust and ventilation unit are arranged on the upper part of the operation panel; a witness collection unit and a touch display screen are arranged in the middle part of the operation panel; an intelligent simulation welding machine, a tool rack and a weldment grounding component are respectively arranged at the lower part of the operation panel, and a simulation welding gun and an intelligent welding mask are hung on the tool rack in sequence; an assessment host and a welding control board are arranged in the intelligent simulation welding machine, and the assessment host is respectively communicated with the witness collection unit, the air supply unit, the touch display screen, the welding control board, a plurality of simulation welding guns, the intelligent welding mask and the smoke exhaust and ventilation unit, and the operation of the examinee is assessed according to the feedback data.

Description

Technical Field

[0001] The invention relates to an assessment device, in particular to an intelligent assessment device for welding and thermal cutting safety technology. Background Art

[0002] The purpose of the special operation certificate is to prove that the practitioners have undergone safety training and can perform on-the-job operations. However, the traditional practical assessment of melting welding and thermal cutting operations is limited by the region, assessors and equipment, and there are very obvious problems in training and assessment. During the training process, due to the existence of real welding machines, there are certain safety hazards; due to the uneven quality of teaching staff, it is difficult to learn the operation technology comprehensively and in depth; due to the need for practical training, a large amount of toxic gas will be generated, which has certain safety hazards, and the use of a large number of consumables leads to high training costs.

[0003] During the examination, actual operation, simulation operation and oral presentation are generally adopted. The scope and depth of the examination are difficult to be comprehensive, and the results achieved do not meet the expected requirements, resulting in safety hazards in actual operations. Oral presentation is a method in which the examiner sets questions or draws questions, and the examinee answers them. The examiner scores them based on the answers. Simulation operation is a method in which the examination unit uses a model to simulate the scene. The examinee searches and answers questions in the simulation scene, and the examinee scores them based on the answers. The actual operation is based on the obtained test questions. The examinee uses the welding and cutting equipment, tools and facilities provided on site and operates in accordance with relevant regulations. Since welding machines have the risk of electric shock, the examiner must always keep a close eye on the operator to see if there are any safety hazards, and finally score according to the operating conditions and scoring standards.

[0004] In order to solve the above problems, people have been looking for an ideal technical solution. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent assessment device for welding and thermal cutting safety technology in view of the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a welding and thermal cutting safety technology intelligent assessment device, comprising an operation panel, the upper part of which is provided with an air supply unit and a smoke exhaust ventilation unit; the middle part of the operation panel is provided with a witness collection unit and a touch screen; the lower part of the operation panel is provided with an intelligent simulation welding machine, a tool rack and a weldment grounding assembly, respectively, the tool rack is sequentially hung with a simulation welding gun and an intelligent welding mask; the weldment grounding assembly is used to detect whether the weldment is normally grounded during welding operation;

[0007] The gas supply unit includes an intelligent valve and an intelligent gas pressure reducer, wherein the intelligent valve is used to detect the opening of the valve, and the intelligent gas pressure reducer is used to detect the gas pressure and the gas flow rate;

[0008] The smoke exhaust ventilation unit comprises a smoke exhaust ventilation component, a smoke exhaust ventilation switch and a switch detection device, the smoke exhaust ventilation component is started and stopped according to the state of the smoke exhaust ventilation switch, and the switch detection device is used to detect the start and stop state of the smoke exhaust ventilation component;

[0009] The identity card collection unit is used to collect the identity card information and face photo of the examinee;

[0010] The smart welding mask is provided with a lifting detection sensor device and a wearing detection sensor device, wherein the lifting detection sensor device is used to detect the lifting and lowering state of the smart welding mask, and the wearing detection sensor device is used to detect the wearing state of the smart welding mask;

[0011] A touch screen capacitive pen tip and a gyroscope are provided on the gun head of each simulation welding gun, and a simulated welding gun button, a micro vibration motor and a lifting detection sensor device are provided on the gun body of the simulation welding gun; the touch screen capacitive pen tip is in contact with the touch display screen so that the touch display screen obtains the position signal of the touch screen capacitive pen tip; the gyroscope is used to collect the posture signal of the simulation welding gun; the lifting detection sensor device is used to detect the lifting and releasing state of the simulation welding gun; the micro vibration motor is connected to the simulation welding gun button, and after the simulation welding gun button is pressed, the simulation welding gun button outputs an operation instruction to the outside; the micro vibration motor is used to start vibrating when the simulation welding gun button is pressed and the position signal of the touch screen capacitive pen tip is the area where the 3D simulation weldment is located;

[0012] The housing of the intelligent simulation welding machine is provided with a working mode selection unit, a parameter setting unit and a gas detection switch, wherein the working mode selection unit is used to select a working mode, and each working mode corresponds to a simulation welding gun; the parameter setting unit is used to set welding parameters; and the gas detection switch is used to input a gas detection instruction;

[0013] The intelligent simulation welding machine is provided with an assessment host and a welding control board, and the assessment host is respectively connected to the person-document collection unit, the gas supply unit, the touch screen, the welding control board, a variety of simulation welding guns, the intelligent welding mask and the fume exhaust ventilation unit; the welding control board is respectively connected to the working mode selection unit, the parameter setting unit and the gas detection switch;

[0014] The assessment host is equipped with intelligent practical assessment software for welding and thermal cutting operation safety technology. During the assessment, the assessment host runs the intelligent practical assessment software for welding and thermal cutting operation safety technology, and assesses the candidate's operation based on the data fed back by the witness collection unit, the touch screen, the gas supply unit, the welding control panel, the multiple simulation welding guns, the intelligent welding mask and the smoke exhaust ventilation unit, and displays the candidate's operation in a 3D virtual form on the touch screen.

[0015] Based on the above, the assessment host runs the welding and thermal cutting operation safety technology practical intelligent assessment software, and the specific steps of assessing the examinee's operation based on the data fed back by the human evidence collection unit, the touch screen, the gas supply unit, the welding control panel, the multiple simulation welding guns, the intelligent welding mask and the smoke exhaust ventilation unit are as follows:

[0016] Verify the candidate's identity based on the ID card information and facial photo collected by the identity card collection unit;

[0017] After the candidate's identity verification is successful, the candidate is guided to select the corresponding assessment subject, and the examination questions are randomly selected from the examination question database of the corresponding assessment subject to form the examination content; the assessment subjects include the theoretical assessment subject of the use of safety equipment, the theoretical assessment subject of the elimination of safety hazards at the work site, and the practical assessment subject;

[0018] When taking theoretical assessment subjects on the use of safety equipment or the elimination of hidden dangers at work sites, the corresponding scene animation, subject introduction and examination content of the current assessment subject are played. After the examinee makes a choice of answer, it is judged whether the answer is correct and a score is given based on the judgment result.

[0019] When conducting practical assessment subjects, the corresponding scene animation and subject introduction of the current assessment subject will be played, and the pre-welding inspection assessment, welding machine operation inspection assessment, weldment fixing condition inspection assessment, welding safety operation assessment and post-work site cleaning assessment will be carried out in sequence;

[0020] When conducting pre-welding inspection and weldment fixation test assessments, after the candidate has made a choice, the candidate's choice is judged to be the correct answer and a score is given based on the judgment result;

[0021] When inspecting and assessing the operation of the welding machine, the operating mode, welding parameters and gas inspection instructions returned by the intelligent simulation welding machine are received, and the valve opening, gas pressure and gas flow rate returned by the intelligent valve are received; whether the operating mode and welding parameters are set in accordance with the standard, and a score is given according to the judgment result; whether the gas supply of the gas supply unit meets the welding requirements according to the gas inspection instruction and the valve opening, gas pressure and gas flow rate, and a score is given according to the judgment result;

[0022] When conducting welding safety operation assessment, the 3D simulated weldment is displayed through the touch screen and the position signal of the touch screen capacitive pen tip is collected. At the same time, the lifting and releasing state, posture signal and operation instruction returned by the simulated welding gun are received, the lifting and releasing state and wearing information returned by the intelligent welding mask are received, and the start and stop state of the smoke exhaust ventilation component returned by the smoke exhaust ventilation unit is received. The motion trajectory of the simulated welding gun is obtained according to the position signal of the touch screen capacitive pen tip, the welding method is judged according to the posture signal returned by the simulated welding gun, the quality of the welding operation is judged according to the lifting and releasing state returned by the simulated welding gun, the operation instruction, the motion trajectory and the welding method, and a score is given according to the judgment result, and the welding progress and welding quality are displayed on the 3D simulated weldment; the use of the intelligent welding mask is judged according to whether the intelligent welding mask is lifted and the wearing state of the intelligent welding mask, and the start and stop state of the smoke exhaust ventilation component returned by the smoke exhaust ventilation unit. It is judged whether the welding process complies with the welding safety specifications, and a score is given according to the judgment result;

[0023] During the post-work site cleaning assessment, determine whether the simulated welding gun and the intelligent welding mask have been returned to their original positions based on the lifting and lowering states returned by the simulated welding gun and the intelligent welding mask; determine whether the gas supply is closed based on the valve opening, gas pressure and gas flow rate returned by the intelligent valve; determine whether the smoke exhaust ventilation is stopped based on the start and stop states of the smoke exhaust ventilation components returned by the smoke exhaust ventilation unit; determine whether the intelligent simulated welding machine is turned off and whether the power is turned off based on the status parameters returned by the intelligent simulated welding machine; and give a score based on the judgment result;

[0024] When all assessment subjects are completed, the scores of all assessment subjects are summarized and a total score is given.

[0025] The present invention has substantial characteristics and progress compared with the prior art. Specifically, the present invention can carry out teaching and training on the safety technology of melting welding and thermal cutting, as well as practical assessment through the device, thus solving the problems of locality, potential safety hazards, generation of waste and exhaust gas, and high cost of manual calculation of results in the practical operation of melting welding and thermal cutting in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a communication schematic diagram of the present invention.

[0028] Figure 3 It is a power supply schematic diagram of the present invention.

[0029] Figure 4 The structure diagram of the intelligent simulation welding machine of the present invention is Figure 1 .

[0030] Figure 5 The structure diagram of the intelligent simulation welding machine of the present invention is Figure 2 .

[0031] In the figure: 1. Operation panel; 2. Lighting switch; 3. Smoke exhaust and ventilation switch; 4: Main power circuit breaker; 5. Oxygen supply module; 6. ID card reader; 7. Face recognition camera; 8. Touch screen; 9. Intelligent simulation welding machine; 10. Lighting component; 11. Smoke exhaust and ventilation component; 12. Argon gas supply module; 13. Acetylene gas supply module; 14. Carbon dioxide gas supply module; 15. Arc welding simulation welding gun; 16. Two-protection welding simulation welding gun; 17. Gas welding simulation welding gun; 18. Argon arc welding simulation welding gun; 19. Tool rack; 20. Intelligent welding mask; 21. Grounding clamp; 22. Grounding point; 23. Set value display window; 24. Parameter setting unit; 25. Heat dissipation shutter; 26. Argon arc welding joint; 27. Arc welding joint; 28. Gas welding joint; 29. ​​Two-protection welding joint; 30. Grounding joint; 31. Welding machine operation status indication area; 32. Working mode selection unit; 33. Gas detection switch; 34. Welding machine power terminal; 35. Assessment host start button; 36. PC interface panel; 37. Argon gas interface; 38. Carbon dioxide interface; 39. Oxygen interface; 40. Acetylene interface; 41. Fuse; 42. Welding machine power switch; 43. Cooling fan; 44. Power switch; 45. Grounding terminal. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0033] Example 1

[0034] This embodiment provides a welding and thermal cutting safety technology intelligent assessment device, such as Figure 1-5 As shown, a welding and thermal cutting safety technology intelligent assessment device comprises an operation panel 1, wherein an air supply unit and a smoke exhaust ventilation unit are arranged on the upper part of the operation panel 1; a witness collection unit 6 and a touch screen 8 are arranged in the middle part of the operation panel 1; an intelligent simulation welding machine 9, a tool rack and a weldment grounding assembly are arranged at the lower part of the operation panel 1, wherein a simulation welding gun and an intelligent welding mask 20 are hung on the tool rack in sequence; the weldment grounding assembly is used to detect whether the weldment is normally grounded during welding operation; the weldment grounding assembly comprises a grounding clamp 21 and a grounding point 22;

[0035] The gas supply unit includes an intelligent valve and an intelligent gas pressure reducer, wherein the intelligent valve is used to detect the opening of the valve, and the intelligent gas pressure reducer is used to detect the gas pressure and the gas flow rate; preferably, the gas supply unit includes an oxygen supply module 5, an acetylene supply module 13, an argon supply module 12 and a carbon dioxide supply module 14;

[0036] The smoke exhaust ventilation unit comprises a smoke exhaust ventilation component 11, a smoke exhaust ventilation switch 3 and a switch detection device. The smoke exhaust ventilation component 11 is started and stopped according to the state of the smoke exhaust ventilation switch 3. The switch detection device is used to detect the start and stop state of the smoke exhaust ventilation component 11.

[0037] The identity card collection unit is used to collect the ID card information and face photo of the examinee; preferably, the identity card collection unit includes an ID card reader 6 and a face recognition camera 7;

[0038] The smart welding mask 20 is provided with a lifting detection sensor device and a wearing detection sensor device, wherein the lifting detection sensor device is used to detect the lifting and lowering state of the smart welding mask 20, and the wearing detection sensor device is used to detect the wearing state of the smart welding mask 20;

[0039] A touch screen capacitive pen tip and a gyroscope are provided on the gun head of each simulation welding gun, and a simulated welding gun button, a micro vibration motor and a lifting detection sensor device are provided on the gun body of the simulation welding gun; the touch screen capacitive pen tip is in contact with the touch display screen 8 so that the touch display screen 8 can obtain the position signal of the touch screen capacitive pen tip; the gyroscope is used to collect the posture signal of the simulation welding gun; the lifting detection sensor device is used to detect the lifting and releasing state of the simulation welding gun; the micro vibration motor is connected to the simulation welding gun button, and after pressing the simulation welding gun button, the simulation welding gun button outputs an operation instruction to the outside, and the micro vibration motor starts to vibrate at the same time; in specific implementation, the simulation welding gun includes an argon arc welding simulation welding gun 18, an arc welding simulation welding gun 15, a gas welding simulation welding gun 17 and a double protection welding simulation welding gun 16;

[0040] The housing of the intelligent simulation welding machine 9 is provided with a working mode selection unit 32, a parameter setting unit 24 and a gas detection switch 33. The working mode selection unit 32 is used to select the working mode, and each working mode corresponds to a simulation welding gun; the parameter setting unit 24 is used to set the welding parameters; the gas detection switch 33 is used to input the gas detection instruction; in specific implementation, the working mode selection unit 32 includes a argon arc welding mode button, an arc welding mode button, a gas welding mode button, and a two-protection welding mode button; the parameter setting unit 24 includes a voltage adjustment knob, a welding wire diameter adjustment knob, a gas delay adjustment knob, an arc starting current adjustment knob, a welding current adjustment knob, and an arc ending current adjustment knob; corresponding to the parameter setting unit 24, a set value display window 23 is also provided respectively;

[0041] The intelligent simulation welding machine 9 is provided with an assessment host and a welding control board, and the assessment host is respectively connected to the human evidence collection unit 6, the gas supply unit, the touch screen 8, the welding control board, a variety of simulation welding guns, the intelligent welding mask 20 and the smoke exhaust ventilation unit; the welding control board is respectively connected to the working mode selection unit 32, the parameter setting unit 24 and the gas detection switch 33;

[0042] The assessment host is equipped with intelligent assessment software for practical operation of welding and thermal cutting operation safety technology. During the assessment, the assessment host runs the intelligent assessment software for practical operation of welding and thermal cutting operation safety technology, and assesses the candidate's operation based on the data fed back by the witness collection unit 6, the touch screen 8, the gas supply unit, the welding control panel, the multiple simulation welding guns, the intelligent welding mask 20 and the smoke exhaust ventilation unit, and displays the candidate's operation in a 3D virtual form on the touch screen 8.

[0043] Specifically, the assessment host runs the welding and thermal cutting operation safety technology practical intelligent assessment software, and the specific steps of assessing the examinee's operation based on the data fed back by the human evidence collection unit 6, the touch screen 8, the gas supply unit, the welding control panel, the multiple simulation welding guns, the intelligent welding mask 20 and the smoke exhaust ventilation unit are as follows:

[0044] Verify the candidate's identity based on the ID card information and face photo collected by the identity card collection unit 6;

[0045] When the ID card information and face photo of the examinee are successfully compared, they are then compared with the examinee information issued by the examination management system. If the comparison fails, the information comparison failure is uploaded to the examination system and the on-site staff is notified to handle it. If the comparison is successful, the examinee is guided to select the corresponding examination subjects, and the examination questions are randomly selected from the examination question database of the corresponding examination subjects to form the examination content; the examination subjects include the theoretical examination subjects on the use of safety equipment, the theoretical examination subjects on the elimination of safety hazards at the work site, and the practical examination subjects;

[0046] When taking theoretical assessment subjects on the use of safety equipment or the elimination of hidden dangers at work sites, the corresponding scene animation, subject introduction and examination content of the current assessment subject are played. After the examinee makes a choice of answer, it is judged whether the answer is the correct answer and a score is given according to the judgment result;

[0047] When conducting practical assessment subjects, the corresponding scene animation and subject introduction of the current assessment subject will be played, and the pre-welding inspection assessment, welding machine operation inspection assessment, weldment fixing condition inspection assessment, welding safety operation assessment and post-work site cleaning assessment will be carried out in sequence;

[0048] When conducting pre-welding inspection and weldment fixation test assessments, after the candidate has made a choice, the candidate's choice is judged to be the correct answer and a score is given based on the judgment result;

[0049] When inspecting and assessing the operation of the welding machine, the examinee sets the working mode and welding parameters on the intelligent simulation welding machine 9 according to the gas inspection instruction and the welding mode to be assessed, and opens the intelligent valve of the gas supply unit at the same time; the assessment host receives the working mode, welding parameters and gas inspection instruction returned by the intelligent simulation welding machine 9, as well as the valve opening, gas pressure and gas flow rate returned by the intelligent valve; judges whether the working mode and welding parameters are set in accordance with the standard, and gives a score according to the judgment result; judges whether the gas supply of the gas supply unit meets the welding requirements according to the gas inspection instruction and the valve opening, gas pressure and gas flow rate, and gives a score according to the judgment result;

[0050] When conducting welding safety operation assessment, the 3D simulated weldment is displayed through the touch screen 8, the examinee turns on the smoke exhaust and ventilation switch 3, wears the intelligent welding mask 20, and then extracts the simulated welding gun to operate on the 3D simulated weldment; the assessment host displays the 3D simulated weldment through the touch screen 8 and collects the position signal of the touch screen capacitive pen tip, and at the same time receives the lifting and releasing state, posture signal and operation instruction returned by the simulated welding gun, receives the lifting and releasing state and wearing information returned by the intelligent welding mask 20, and receives the start and stop state of the smoke exhaust and ventilation component 11 returned by the smoke exhaust and ventilation unit, and performs the assessment according to the position signal of the touch screen capacitive pen tip. The motion trajectory of the simulated welding gun is obtained by using a positioning signal, the welding mode is determined according to the posture signal returned by the simulated welding gun, the quality of the welding operation is determined according to the lifting and lowering state returned by the simulated welding gun, the operation instruction, the motion trajectory and the welding mode, a score is given according to the judgment result, and the welding progress and welding quality are displayed on the 3D simulated weldment; the use of the intelligent welding mask 20 is determined according to whether the intelligent welding mask 20 is lifted, the wearing state of the intelligent welding mask 20, and the start and stop state of the exhaust ventilation component 11 returned by the exhaust ventilation unit, and whether the welding process complies with the welding safety specification, and a score is given according to the judgment result;

[0051] When entering the post-work site cleaning assessment, the examinee places the simulated welding gun and the intelligent welding mask 20 on the tool rack in sequence, and then closes the intelligent valve and the smoke exhaust ventilation switch 3; the assessment host determines whether the simulated welding gun and the intelligent welding mask 20 are returned to their original positions according to the lifting and lowering states returned by the simulated welding gun and the intelligent welding mask 20; determines whether the gas supply is closed according to the valve opening, gas pressure and gas flow rate returned by the intelligent valve; determines whether the smoke exhaust ventilation is stopped according to the start and stop states of the smoke exhaust ventilation component 11 returned by the smoke exhaust ventilation unit; determines whether the intelligent simulation welding machine 9 is turned off and whether the power is turned off according to the state parameters returned by the intelligent simulation welding machine 9; and gives a score based on the judgment result;

[0052] When all assessment subjects are completed, the scores of all assessment subjects are summarized and a total score is given.

[0053] In order to make the candidates feel immersive, the welding and thermal cutting operation safety technology practical intelligent assessment software adopts the method of roaming a simulated person in a three-dimensional scene for assessment. Specifically, the three-dimensional scene includes 6 virtual spaces and a virtual channel. The 6 virtual spaces are respectively arc welding work area, argon arc welding work area, carbon dioxide shielded welding work area, gas welding and gas cutting work area, safety protection equipment selection area and office area; when test questions are randomly extracted from the test question database of the corresponding assessment subject to form the test content, the simulated person will be in different areas to perform operations.

[0054] At the same time, when the simulated welding gun button is pressed and the position signal of the touch screen capacitive pen tip on the simulated welding gun head is the area where the 3D simulated weldment is located, the micro vibration motor starts to vibrate, so that the examinee has the feeling of actually using a welding gun.

[0055] Furthermore, in the software operation process, countdown buttons are used in multiple places. Clicking to confirm and proceeding to the next step is not allowed before the countdown ends. The countdown time of these buttons is the same, and there should be a configuration file to uniformly set the timing duration.

[0056] The welding and thermal cutting operation safety technology practical intelligent assessment software adopts an automatic scoring system, which can obtain corresponding scores based on the user's operation results and generate score details; there are two ways to view the details. Users can view them through the test result panel in the software after the test, or upload the score details to a designated server for storage.

[0057] In a specific implementation, the shell of the intelligent simulation welding machine 9 is also provided with a PC interface panel 36, a welding machine power terminal 34, a grounding terminal 15, a fuse 41, an assessment host start button 35, a welding machine power switch 42 and a power switch 44. The welding machine power terminal 34 is connected to the assessment host through the fuse 41, the power switch 44 and the assessment host start button 35 in sequence; the welding machine power terminal 34 is connected to the input end of the power supply through the fuse 41, the power switch 44 and the welding machine power switch 42 in sequence. The output end of the source is respectively connected to the operation panel 1, the simulation welding gun and the gas supply unit, and is used to supply power to the operation panel 1, the simulation welding gun and the gas supply unit; the operation panel 1 is used to supply power to the smoke exhaust ventilation unit; the assessment host is connected to the touch screen 8 and the person evidence collection unit 6 through the PC interface panel 36, and is used to supply power to the touch screen 8 and the person evidence collection unit 6, and communicate with the touch screen 8 and the person evidence collection unit 6; the grounding terminal 15 is used to ground the housing of the intelligent simulation welding machine 9. Preferably, the power supply unit is a DC5V switching power supply.

[0058] Furthermore, the PC interface panel 36 is provided with 2 assessment host USB interfaces, 1 HDMI interface, and 1 network port; the witness collection unit 6 communicates with the assessment host via the USB interface; the touch screen 8 communicates with the assessment host via the HDMI interface and the USB interface; the assessment host communicates wirelessly with the welding control board, the simulation welding gun, the intelligent welding mask 20, and the smoke exhaust ventilation unit via a wireless gateway.

[0059] Further, in order to make the intelligent simulation welding machine 9 closer to a real welding machine, the shell of the intelligent simulation welding machine 9 is also provided with argon arc welding joints 26, arc welding joints 27, gas welding joints 28 and two-protection welding joints 29 corresponding to the argon arc welding simulation welding gun 18, the electric arc welding simulation welding gun 15, the gas welding simulation welding gun 17 and the two-protection welding simulation welding gun 16, respectively. The argon arc welding joint 26 is used to fix the cable of the argon arc welding simulation welding gun 18, the electric arc welding joint 27 is used to fix the cable of the electric arc welding simulation welding gun 15, the two-protection welding joint 29 is used to fix the cable of the two-protection welding simulation welding gun 16, and the gas welding joint 28 is used to fix the gas pipe of the gas welding simulation welding gun 17;

[0060] The shell of the intelligent simulation welding machine 9 is also provided with an oxygen interface 39, an acetylene interface 40, an argon interface 37 and a carbon dioxide interface 38 corresponding to the oxygen supply module 5, the acetylene supply module 13, the argon supply module 12 and the carbon dioxide supply module 14, respectively. The oxygen supply module 5 is connected to the oxygen interface 39 through an air pipe, the acetylene supply module 13 is connected to the acetylene interface 40 through an air pipe, the argon supply module 12 is connected to the argon interface 37 through an air pipe, and the carbon dioxide supply module 14 is connected to the carbon dioxide interface 38 through an air pipe.

[0061] The settings of the argon arc welding joint 26, the electric arc welding joint 27, the gas welding joint 28, the double welding joint 29, the oxygen interface 39, the acetylene interface 40, the argon interface 37 and the carbon dioxide interface 38 form a complete connection relationship between the gas supply unit, the intelligent simulation welding gun and various types of simulation welding guns, which is closer to the real welding environment.

[0062] Furthermore, a power control box and a lighting assembly 10 are also arranged on the upper part of the operation panel 1, and a lighting switch 2, a main power circuit breaker 4 and the smoke exhaust and ventilation switch 3 are arranged in the power control box. The lighting switch 2 is connected in series between the power supply and the lighting assembly 10, and the smoke exhaust and ventilation switch 3 is connected in series between the power supply and the smoke exhaust and ventilation assembly 11.

[0063] Furthermore, the shell of the intelligent simulation welding machine 9 is also provided with a heat dissipation shutter 25 and a heat dissipation fan 43, which are used to dissipate heat for the intelligent simulation welding machine 9 and the assessment host. The shell of the intelligent simulation welding machine 9 is also provided with a grounding joint 30 and a grounding terminal 45. The grounding joint is used to fix the grounding clamp cable and the grounding output interface during simulated welding. The grounding terminal 45 is used for grounding protection of the welding machine shell to prevent electric shock caused by leakage. The shell of the intelligent simulation welding machine 9 is also provided with a welding machine operation status indication area 31, which is respectively provided with a power light, an abnormal light, and an alarm light from left to right, which are used to indicate the current working status of the welding machine; the power light indicates whether the welding machine is turned on; the abnormal light indicates whether the parameter settings of the welding machine are normal during operation, and whether the voltage and current output during welding will cause overvoltage and overheating protection of the welding machine; the alarm light indicates whether the welding machine is turned on, and whether each mode and unit of the self-check can work normally.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An intelligent assessment device for welding and thermal cutting safety technology, characterized in that: It includes an operation panel, the upper part of which is provided with an air supply unit and a smoke exhaust ventilation unit; the middle part of the operation panel is provided with a witness collection unit and a touch screen; the lower part of the operation panel is provided with an intelligent simulation welding machine, a tool rack and a weldment grounding assembly, and the tool rack is sequentially hung with a simulation welding gun and an intelligent welding mask; the weldment grounding assembly is used to detect whether the weldment is normally grounded during welding operation; The gas supply unit includes an intelligent valve and an intelligent gas pressure reducer, wherein the intelligent valve is used to detect the opening of the valve, and the intelligent gas pressure reducer is used to detect the gas pressure and the gas flow rate; The smoke exhaust ventilation unit comprises a smoke exhaust ventilation component, a smoke exhaust ventilation switch and a switch detection device, the smoke exhaust ventilation component is started and stopped according to the state of the smoke exhaust ventilation switch, and the switch detection device is used to detect the start and stop state of the smoke exhaust ventilation component; The identity card collection unit is used to collect the identity card information and face photo of the examinee; The smart welding mask is provided with a lifting detection sensor device and a wearing detection sensor device, wherein the lifting detection sensor device is used to detect the lifting and lowering state of the smart welding mask, and the wearing detection sensor device is used to detect the wearing state of the smart welding mask; Each simulated welding gun has a touch screen capacitive pen tip and a gyroscope on its tip, and a simulated welding gun button, a micro vibration motor and a lifting detection sensor are provided on the gun body of the simulated welding gun; the touch screen capacitive pen tip contacts the touch display screen so that the touch display screen obtains a position signal of the touch screen capacitive pen tip; The gyroscope is used to collect the posture signal of the simulated welding gun; the lifting detection sensor device is used to detect the lifting and lowering state of the simulated welding gun; the micro vibration motor is connected to the simulated welding gun button, and after the simulated welding gun button is pressed, the simulated welding gun button outputs an operation instruction to the outside; the micro vibration motor is used to start vibrating when the simulated welding gun button is pressed and the position signal of the touch screen capacitive pen tip is the area where the 3D simulated weldment is located; The housing of the intelligent simulation welding machine is provided with a working mode selection unit, a parameter setting unit and a gas detection switch, wherein the working mode selection unit is used to select a working mode, each working mode corresponds to a simulation welding gun; the parameter setting unit is used to set welding parameters; The gas detection switch is used to input a gas detection instruction; The simulation welding gun includes a argon arc welding simulation welding gun, an electric arc welding simulation welding gun, a gas welding simulation welding gun and a two-protection welding simulation welding gun; the gas supply unit includes an oxygen supply module, an acetylene supply module, an argon gas supply module and a carbon dioxide supply module; the working mode selection unit includes a argon arc welding mode button, an electric arc welding mode button, a gas welding mode button and a two-protection welding mode button; the parameter setting unit includes a voltage adjustment knob, a welding wire diameter adjustment knob, a gas delay adjustment knob, an arc starting current adjustment knob, a welding current adjustment knob and an arc ending current adjustment knob; The housing of the intelligent simulation welding machine is also provided with argon arc welding joints, arc welding joints, gas welding joints and two-protection welding joints corresponding to the argon arc welding simulation welding gun, the electric arc welding simulation welding gun, the gas welding simulation welding gun and the two-protection welding simulation welding gun, respectively. The argon arc welding joint is used to fix the cable of the arc welding simulation welding gun, the electric arc welding joint is used to fix the cable of the electric arc welding simulation welding gun, the two-protection welding joint is used to fix the cable of the two-protection welding simulation welding gun, and the gas welding joint is used to fix the gas pipe of the gas welding simulation welding gun; The housing of the intelligent simulation welding machine is also provided with an oxygen interface, an acetylene interface, an argon interface and a carbon dioxide interface respectively corresponding to the oxygen supply module, the acetylene supply module, the argon supply module and the carbon dioxide supply module. The oxygen supply module is connected to the oxygen interface through a trachea, the acetylene supply module is connected to the acetylene interface through a trachea, the argon supply module is connected to the argon interface through a trachea, and the carbon dioxide supply module is connected to the carbon dioxide interface through a trachea; The intelligent simulation welding machine is provided with an assessment host and a welding control board, and the assessment host is respectively connected to the person-document collection unit, the gas supply unit, the touch screen, the welding control board, a variety of simulation welding guns, the intelligent welding mask and the fume exhaust ventilation unit; the welding control board is respectively connected to the working mode selection unit, the parameter setting unit and the gas detection switch; The assessment host is equipped with welding and thermal cutting operation safety technology practical intelligent assessment software, wherein the welding and thermal cutting operation safety technology practical intelligent assessment software adopts the method of roaming in a three-dimensional scene for assessment. The three-dimensional scene includes 6 virtual spaces and a virtual channel. The 6 virtual spaces are respectively an arc welding work area, an argon arc welding work area, a carbon dioxide shielded welding work area, a gas welding and gas cutting work area, a safety protection equipment selection area and an office area; when randomly extracting test questions from the test question database of the corresponding assessment subject to form the test content, the simulated person will be in different areas to operate; During the assessment, the assessment host runs the welding and thermal cutting operation safety technology practical intelligent assessment software, and assesses the examinee's operation based on the data fed back by the person and evidence collection unit, the touch screen, the gas supply unit, the welding control panel, the multiple simulation welding guns, the intelligent welding mask and the smoke exhaust ventilation unit, and displays the examinee's operation in a 3D virtual form on the touch screen; The specific steps of the assessment host running the welding and thermal cutting operation safety technology practical intelligent assessment software and assessing the examinee's operation based on the data fed back by the person and evidence collection unit, the touch screen, the gas supply unit, the welding control panel, the multiple simulation welding guns, the intelligent welding mask and the smoke exhaust ventilation unit are as follows: Verify the candidate's identity based on the ID card information and facial photo collected by the identity card collection unit; After the candidate's identity verification is successful, the candidate is guided to select the corresponding assessment subject, and the examination questions are randomly selected from the examination question database of the corresponding assessment subject to form the examination content; the assessment subjects include the theoretical assessment subject of the use of safety equipment, the theoretical assessment subject of the elimination of safety hazards at the work site, and the practical assessment subject; When taking theoretical assessment subjects on the use of safety equipment or the elimination of hidden dangers at work sites, the corresponding scene animation, subject introduction and examination content of the current assessment subject are played. After the examinee makes a choice of answer, it is judged whether the answer is correct and a score is given based on the judgment result. When conducting practical assessment subjects, the corresponding scene animation and subject introduction of the current assessment subject will be played, and the pre-welding inspection assessment, welding machine operation inspection assessment, weldment fixing condition inspection assessment, welding safety operation assessment and post-work site cleaning assessment will be carried out in sequence; When conducting pre-welding inspection and weldment fixation test assessments, after the candidate has made a choice, the candidate's choice is judged to be the correct answer and a score is given based on the judgment result; When inspecting and assessing the operation of the welding machine, the operating mode, welding parameters and gas inspection instructions returned by the intelligent simulation welding machine are received, and the valve opening, gas pressure and gas flow rate returned by the intelligent valve are received; whether the operating mode and welding parameters are set in accordance with the standard, and a score is given according to the judgment result; whether the gas supply of the gas supply unit meets the welding requirements according to the gas inspection instruction and the valve opening, gas pressure and gas flow rate, and a score is given according to the judgment result; When conducting welding safety operation assessment, the 3D simulated weldment is displayed through the touch screen and the position signal of the touch screen capacitive pen tip is collected. At the same time, the lifting and releasing state, posture signal and operation instruction returned by the simulated welding gun are received, the lifting and releasing state and wearing information returned by the intelligent welding mask are received, and the start and stop state of the smoke exhaust ventilation component returned by the smoke exhaust ventilation unit is received. The motion trajectory of the simulated welding gun is obtained according to the position signal of the touch screen capacitive pen tip, the welding method is judged according to the posture signal returned by the simulated welding gun, the quality of the welding operation is judged according to the lifting and releasing state returned by the simulated welding gun, the operation instruction, the motion trajectory and the welding method, and a score is given according to the judgment result, and the welding progress and welding quality are displayed on the 3D simulated weldment; the use of the intelligent welding mask is judged according to whether the intelligent welding mask is lifted and the wearing state of the intelligent welding mask, and the start and stop state of the smoke exhaust ventilation component returned by the smoke exhaust ventilation unit. It is judged whether the welding process complies with the welding safety specifications, and a score is given according to the judgment result; During the post-work site cleaning assessment, determine whether the simulated welding gun and the intelligent welding mask have been returned to their original positions based on the lifting and lowering states returned by the simulated welding gun and the intelligent welding mask; determine whether the gas supply is closed based on the valve opening, gas pressure and gas flow rate returned by the intelligent valve; determine whether the smoke exhaust ventilation is stopped based on the start and stop states of the smoke exhaust ventilation components returned by the smoke exhaust ventilation unit; determine whether the intelligent simulated welding machine is turned off and whether the power is turned off based on the status parameters returned by the intelligent simulated welding machine; and give a score based on the judgment result; When all assessment subjects are completed, the scores of all assessment subjects are summarized and a total score is given.

2. The intelligent assessment device for welding and thermal cutting safety technology according to claim 1 is characterized in that: The housing of the intelligent simulation welding machine is also provided with a PC interface panel, a welding machine power terminal, a grounding terminal, a fuse, an assessment host start button, a welding machine power switch and a power switch. The welding machine power terminal is connected to the assessment host through the fuse, the power switch and the assessment host start button in sequence; the welding machine power terminal is connected to the input end of the power supply through the fuse, the power switch and the welding machine power switch in sequence, and the output end of the power supply is respectively connected to the operation panel, the simulation welding gun and the gas supply unit, for supplying power to the operation panel, the simulation welding gun and the gas supply unit; the operation panel is used to supply power to the smoke exhaust ventilation unit; The assessment host is connected to the touch screen and the evidence collection unit through the PC interface panel, and is used to supply power to the touch screen and the evidence collection unit, and to communicate with the touch screen and the evidence collection unit; The grounding terminal is used to ground the housing of the intelligent simulation welding machine.

3. The intelligent assessment device for welding and thermal cutting safety technology according to claim 2 is characterized in that: The witness collection unit communicates with the assessment host via a USB interface; the touch screen communicates with the assessment host via an HDMI interface and a USB interface; the assessment host communicates wirelessly with the welding control board, the simulation welding gun, the intelligent welding mask, and the smoke exhaust ventilation unit via a wireless gateway.

4. The intelligent assessment device for welding and thermal cutting safety technology according to claim 1 is characterized in that: The identity card collection unit includes an identity card reader and a face recognition camera.

5. The intelligent assessment device for welding and thermal cutting safety technology according to claim 1 is characterized in that: A power control box and a lighting assembly are also provided on the upper part of the operation panel. A lighting switch, a main power circuit breaker and the smoke exhaust and ventilation switch are provided in the power control box. The lighting switch is connected in series between the power supply and the lighting assembly, and the smoke exhaust and ventilation switch is connected in series between the power supply and the smoke exhaust and ventilation assembly.

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