A welding teaching and training device and its training method
By designing a low-voltage DC power supply welding teaching and training device, and using spark nozzles, glue outlets, and sprayers to simulate the welding process, the safety and occupational disease risks of existing welding equipment have been solved, achieving a safe and low-power welding simulation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 浙江太学科技集团有限公司
- Filing Date
- 2026-04-14
- Publication Date
- 2026-06-02
AI Technical Summary
The high voltage and strong current of existing welding equipment pose a significant safety threat to beginners, and the harmful substances produced during welding increase the risk of occupational diseases, making it impossible to conduct large-scale practical training safely and efficiently in classrooms.
Design a welding teaching and training device that uses a low-voltage DC power supply. The device simulates the actual welding process through a spark nozzle, glue outlet, glue delivery mechanism, and sprayer. It uses a mixture of AB type glass glue and instant glue to simulate sparks, smoke, and weld effects, while avoiding melting metal.
It achieves safe and low-power welding simulation, reduces the risk of electric shock and the generation of harmful substances, and improves the safety and effectiveness of practical training.
Smart Images
Figure CN122135618A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of teaching equipment, and in particular relates to an electric welding teaching and training device and its training method. Background Technology
[0002] Existing welding equipment uses 220V or 380V voltage and high current to melt metal for welding. For workers or students new to welding, high voltage and high current are extremely dangerous, posing a significant risk of electric shock. Furthermore, welding generates large amounts of harmful substances. If a large number of trainees undergo welding training in the same classroom, the accumulation of harmful dust is aggravated, increasing the risk of occupational diseases such as pneumoconiosis for trainees and instructors. However, training with welding equipment is essential. Therefore, a welding teaching and training device that can simulate welding equipment is needed to improve safety during training. Summary of the Invention
[0003] The purpose of this invention is to provide an electric welding teaching and training device and its training method. This invention has the advantage of good safety.
[0004] The technical solution of the present invention is as follows: an electric welding teaching and training device, comprising a welding torch and a glue storage container. The front end of the welding torch is provided with a spark nozzle and a glue outlet. The welding torch is provided with a spark generating mechanism. The glue storage container is provided with a glue storage unit. The glue storage unit is connected to the glue outlet through a glue feeding mechanism.
[0005] In the aforementioned welding teaching and training device, there are two glue outlets, and the glue storage container is equipped with two glue storage units, each consisting of two glue storage chambers. The two glue storage units are used to store AB type glass glue and AB type instant glue, respectively, and the two glue storage chambers store the A component and B component of the corresponding glue, respectively.
[0006] In the aforementioned welding teaching and training device, the adhesive delivery mechanism includes two suction pumps. The inlets of the two suction pumps are respectively connected to two adhesive storage chambers of the same adhesive storage unit through two first hoses, and the outlets of the two suction pumps are respectively connected to the same adhesive outlet through two second hoses. A first valve is provided on the first hose or the second hose. When the two components of the same adhesive are squeezed out from the same adhesive outlet, solidification can occur.
[0007] In the aforementioned electric welding teaching and training device, the front end of the welding gun is provided with a groove, and the discharge end of the spark generating mechanism is located in the groove;
[0008] The glue dispensing mechanism includes a flexible three-way tube located within a groove. Two rigid tubes are tightly fitted to the two inlet ends of the three-way tube, and the outlet of the three-way tube forms the glue outlet. The rear end of the rigid tube is fixed to the front end of a second flexible tube. The two components of the same glue are mixed within the three-way tube before extrusion, resulting in a more uniform mixture.
[0009] In the aforementioned electric welding teaching and training device, the opening of the groove is provided with an openable cover plate, and the cover plate is provided with a spark nozzle. A part of the tee pipe passes through the cover plate, so that the glue outlet is located on the front side of the cover plate.
[0010] In the aforementioned electric welding teaching and training device, the spark generating mechanism includes a pulse discharge circuit and two electrodes fixed in a groove. The two electrodes are symmetrically distributed about the axis of the spark nozzle, and the distance between the tips of the two electrodes is 2-3 mm. One electrode is connected to the high voltage output terminal of the pulse discharge circuit, and the other electrode is connected to the ground terminal of the pulse discharge circuit.
[0011] The welding torch is connected to a high-pressure gas source via a gas pipe, the outlet of which is located within a groove, and a second valve is installed on the gas pipe. A pulse discharge circuit causes the electrodes to discharge, generating sparks. These sparks are then ejected by the airflow, simulating the sparks produced during actual welding.
[0012] In the aforementioned electric welding teaching and training device, a copper wire is provided between the two electrodes. The copper wire increases the number of sparks.
[0013] In the aforementioned electric welding teaching and training device, the welding torch is equipped with a spray pipe, which has a third valve. The outlet of the spray pipe is located at the front end of the welding torch, and the spray pipe is connected to a sprayer. The water mist sprayed from the spray pipe can simulate the fumes during actual welding, but is harmless to the human body.
[0014] In the aforementioned electric welding teaching and training device, the welding torch is equipped with a switch, and the suction pump, the first valve, the pulse discharge circuit, the second valve, the third valve and the sprayer are all connected to a DC power supply via the switch. The DC power supply voltage is ≤36V.
[0015] The aforementioned training method of the electric welding teaching and training device involves storing AB type glass glue and AB type instant glue in two glue storage units respectively. In one glue storage unit, the two glue storage compartments store the A component and the B component of the glass glue respectively, and in the other glue storage unit, the two glue storage compartments store the A component and the B component of the instant glue respectively.
[0016] The front end of the welding torch is aligned with the simulated welding position on the workpiece and moved along the weld seam direction. During the movement, a spark generating mechanism is used to release sparks, simulating the flames generated during actual welding. An adhesive feeding mechanism is used to sequentially cover the weld seam with instant adhesive and silicone sealant. The instant adhesive adheres to the workpiece, while the silicone sealant covers the weld seam, simulating the color and shape of the weld seam after actual welding. A sprayer outputs water mist to the welding torch, simulating the fumes generated during actual welding.
[0017] Compared with existing technologies, this invention can fix two workpieces together and form an appearance similar to an actual weld. It can generate sparks and water mist at the welding position to simulate the sparks and smoke during actual welding, achieving a similar effect to actual welding. Furthermore, it does not require melting metal during use, requires less power, does not produce smoke, and is safe. It can be used in practical training to replace existing welding equipment. Attached Figure Description
[0018] Figure 1 This is a front view structural diagram of a welding torch.
[0019] Figure 2 This is a front view of the welding torch tip.
[0020] Figure 3 This is a bottom view of the welding torch tip.
[0021] Figure 4 This is a schematic diagram of the structure of the glue storage container.
[0022] The labels in the attached diagram are as follows: 1-welding torch, 2-resin storage container, 3-spark nozzle, 4-resin outlet, 6-resin storage bin, 7-suction pump, 8-first hose, 9-second hose, 10-first valve, 11-groove, 12-tee pipe, 13-rigid pipe, 14-cover plate, 16-electrode, 17-switch, 18-air pipe, 20-copper wire, 21-spray pipe. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0024] Example 1: A welding teaching and training device, such as Figure 1 As shown, it includes a welding torch 1 and a glue storage container 2. The front end of the welding torch 1 is provided with a spark nozzle 3 and two glue outlets 4. The welding torch 1 is provided with a spark generating mechanism. The glue storage container 2 is provided with two glue storage units. Each glue storage unit consists of two glue storage chambers 6. The glue storage unit is connected to the glue outlets 4 through a glue feeding mechanism.
[0025] The glue delivery mechanism includes two suction pumps 7. The inlets of the two suction pumps 7 are respectively connected to two glue storage chambers 6 of the same glue storage unit through two first hoses 8. The outlets of the two suction pumps 7 are respectively connected to the same glue outlet 4 through two second hoses 9. A first valve 10 is provided on the first hose 8 or the second hose 9. The second hose 9 extends from the tail end of the welding torch 1.
[0026] The welding torch 1 has a groove 11 at its front end, and an openable cover plate 14 at the opening of the groove 11. The cover plate 14 is snapped together with the welding torch 1. A notch can be provided at the edge of the cover plate 14 to facilitate the insertion of a flathead screwdriver to pry it out. The cover plate 14 and the welding torch 1 can also be connected by screws. The spark nozzle 3 is located on the cover plate 14.
[0027] The spark generating mechanism includes a pulse discharge circuit (existing circuit) and two electrodes 16 fixed in the groove 11. The two electrodes 16 are symmetrically distributed about the axis of the spark nozzle 3, with a tip-to-tip distance of 2-3 mm. One electrode 16 is connected to the high-voltage output terminal of the pulse discharge circuit, and the other electrode 16 is connected to the ground terminal of the pulse discharge circuit. The two electrodes 16 constitute the discharge terminal of the spark generating mechanism. A 0.3 mm diameter copper wire 20 is provided between the two electrodes 16, and the copper wire 20 is inserted and fixed to the welding torch 1. The welding torch 1 is connected to a high-pressure gas source through a gas pipe 18, which extends from the tail end of the welding torch 1. The high-pressure gas source can be compressed air. The outlet of the gas pipe 18 is located in the groove 11, and a second valve is provided on the gas pipe 18. The single pulse energy of the pulse discharge circuit is less than 0.1 joules, the pulse frequency is less than 50 Hz, and the pulse width is between 4-8 μs. Human contact with the electric shock results in only a slight stinging sensation.
[0028] The glue dispensing mechanism includes a flexible three-way tube 12, which can be made of silicone or PVC. The three-way tube 12 is located in the groove 11. The two inlet ends of the three-way tube 12 are tightly fitted with rigid tubes 13, which can be made of metal. The outlet part of the three-way tube 12 passes through the cover plate 14, so that the glue outlet 4 is located on the front side of the cover plate 14. The rear end of the rigid tube 13 is fixed to the front end of the second flexible tube 9.
[0029] The welding torch 1 is equipped with a spray pipe 21, which has a third valve. The outlet of the spray pipe 21 is located at the front end of the welding torch 1, and the rear end of the spray pipe 21 extends from the tail end of the welding torch 1. The spray pipe 21 is a Y-shaped pipe with two outlets. The rear end of the spray pipe 21 is connected to a sprayer. The sprayer can be an ultrasonic humidifier.
[0030] The welding torch 1 is equipped with a switch 17, which is turned on when pressed and turned off when released. The suction pump 7, the first valve 10, the pulse discharge circuit, the second valve, the third valve, and the sprayer are all connected to a low-voltage DC power supply via the switch. The low-voltage DC power supply can be 24V or 36V. All valves are normally closed solenoid valves that open when energized.
[0031] Example 2: The training method of the electric welding teaching and training device of Example 1 includes the following steps:
[0032] Adhesive filling: AB type glass glue and AB type instant glue are filled into the two glue storage units respectively, and the two glue storage bins 6 of a single glue storage unit are filled with the A component and B component of the corresponding adhesive respectively;
[0033] Training preparation: Fix the workpiece to be simulated for welding, and align the front end of welding gun 1 with the simulated weld seam of the workpiece.
[0034] Simulated welding: Press switch 17 on welding torch 1 to make all components work synchronously. Move welding torch 1 at a constant speed along the weld seam. During the movement: ① Electric sparks are generated between the two electrodes 16 of the spark generating mechanism. Copper wire 20 forms an auxiliary discharge node. Compressed gas from the high-pressure gas source is sprayed out of the spark nozzle 3 through the gas pipe 18 to simulate the welding flame; ② The suction pump 7 delivers the adhesive components in the adhesive storage tank 6 through the hose. Components A and B of the same adhesive storage unit are mixed in the three-way pipe 12 and squeezed out from the adhesive outlet 4. Instant adhesive is first applied to the weld seam to achieve workpiece bonding. Glass glue is then applied to the outside of the instant adhesive to simulate the shape and color of the weld seam; ③ Water mist generated by the sprayer is sprayed out through the two outlets of the spray pipe 21 to simulate welding fumes.
[0035] Training completion: After completing the weld simulation, release switch 17 to stop all components from working; remove the cover plate 14 of welding torch 1, take out the tee pipe 12 and clean the internal residual adhesive, dry it and put it back for later use.
[0036] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations.
Claims
1. A welding teaching and training device, characterized in that: It includes a welding torch (1) and a glue storage container (2). The front end of the welding torch (1) is provided with a spark nozzle (3) and a glue outlet (4). The welding torch (1) is provided with a spark generating mechanism. The glue storage container (2) is provided with a glue storage unit. The glue storage unit is connected to the glue outlet (4) through a glue feeding mechanism.
2. The electric welding teaching and training device according to claim 1, characterized in that: There are two glue outlets (4), and the glue storage container (2) is equipped with two glue storage units, each consisting of two glue storage chambers (6).
3. The electric welding teaching and training device according to claim 2, characterized in that: The glue delivery mechanism includes two suction pumps (7). The inlets of the two suction pumps (7) are connected to two glue storage chambers (6) of the same glue storage unit through two first hoses (8). The outlets of the two suction pumps (7) are connected to the same glue outlet (4) through two second hoses (9). A first valve (10) is provided on the first hose (8) or the second hose (9).
4. The electric welding teaching and training device according to claim 3, characterized in that: The front end of the welding torch (1) is provided with a groove (11), and the discharge end of the spark generating mechanism is located in the groove (11); The glue dispensing mechanism includes a flexible three-way tube (12), which is located in a groove (11). The two inlet ends of the three-way tube (12) are tightly fitted with rigid tubes (13), and the outlet of the three-way tube (12) forms a glue outlet (4). The rear end of the rigid tube (13) is fixed to the front end of the second flexible tube (9).
5. The electric welding teaching and training device according to claim 4, characterized in that: The opening of the groove (11) is provided with an openable cover plate (14), and the cover plate (14) is provided with a spark nozzle (3). A part of the three-way pipe (12) passes through the cover plate (14) so that the glue outlet (4) is located on the front side of the cover plate (14).
6. The electric welding teaching and training device according to claim 5, characterized in that: The spark generating mechanism includes a pulse discharge circuit and two electrodes (16) fixed in the groove (11). The two electrodes (16) are symmetrically distributed about the axis of the spark nozzle (3). The tip distance between the two electrodes (16) is 2-3 mm. One electrode (16) is connected to the high voltage output terminal of the pulse discharge circuit, and the other electrode (16) is connected to the ground terminal of the pulse discharge circuit. The welding torch (1) is connected to a high-pressure gas source through a gas pipe (18). The outlet of the gas pipe (18) is located in a groove (11), and a second valve is provided on the gas pipe (18).
7. The electric welding teaching and training device according to claim 6, characterized in that: A copper wire (20) is provided between the two electrodes (16).
8. The electric welding teaching and training device according to claim 6, characterized in that: The welding torch (1) is equipped with a spray pipe (21), and a third valve is provided on the spray pipe (21). The outlet of the spray pipe (21) is located at the front end of the welding torch (1), and the spray pipe (21) is connected to the sprayer.
9. The electric welding teaching and training device according to claim 6, characterized in that: The welding torch (1) is equipped with a switch (17). The suction pump (7), the first valve (10), the pulse discharge circuit, the second valve, the third valve and the sprayer are all connected to a DC power supply through the switch. The DC power supply voltage is ≤36V.
10. The training method of the electric welding teaching and training device according to claim 8, characterized in that: AB type glass glue and AB type instant glue are stored in two glue storage units respectively. The two glue storage compartments (6) of one glue storage unit store the A component of glass glue and the B component of glass glue respectively. The two glue storage compartments (6) of the other glue storage unit store the A component of instant glue and the B component of instant glue respectively. The front end of the welding torch (1) is aligned with the simulated welding position of the workpiece and moved along the weld direction. During the movement, a spark is released using the spark generating mechanism to simulate the flame generated during the actual welding process. The adhesive feeding mechanism is used to cover the weld with instant adhesive and glass glue in sequence. The instant adhesive adheres to the workpiece, and the glass glue covers the weld to simulate the color and shape of the weld after actual welding. A sprayer is used to output water mist to the welding torch (1) to simulate the fumes generated during actual welding.