Self-protection gas preheating device for robot welding

Abstract

The utility model discloses a self-protection gas preheating device for robot welding, which comprises a self-protection gas delivery pipe and a push-pull wire motor, the push-pull wire motor comprises a motor, a motor sealing cover is arranged outside the motor, a spiral flow guide gas groove is arranged between the motor sealing cover and the motor, and a gas inlet nozzle is arranged at the rear part of the motor sealing cover. An air outlet nozzle is arranged at the front part of the motor sealing cover; the self-protection gas conveying pipe is divided into two sections and comprises a gas inlet pipe connected with the gas inlet nozzle and a gas outlet pipe connected with the gas outlet nozzle; the gas inlet nozzle and the gas outlet nozzle are communicated with the spiral flow guide gas groove, protective gas enters the spiral flow guide gas groove from the gas inlet pipe and the gas inlet nozzle, heat of the motor is used for preheating the protective gas, and the preheated protective gas is led to the front end of a welding nozzle of the welding gun through the gas outlet nozzle and the gas outlet pipe. Heat of the motor is taken away through protection gas circulation, and efficient heat dissipation is achieved; motor waste heat is used for preheating protective gas, and the welding quality is improved; the equipment structure is simplified, and energy consumption and maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to a self-protective gas preheating device for robotic welding. Background Technology

[0002] In robotic welding operations, the drive motor of the front-end wire drawing mechanism needs to frequently reverse direction to precisely control the wire feed. Existing technology has the following drawbacks:

[0003] ①. Prolonged high-load operation of motors leads to heat buildup. Traditional air cooling or natural heat dissipation methods are inefficient and can easily cause motor failure.

[0004] ②. The shielding gas (such as CO2) used in the welding process is usually used directly without preheating, which affects the stability of the weld pool;

[0005] ③. Independent cooling systems, such as compressors, increase equipment size and energy consumption due to gas loss, which does not meet the requirements of lightweight and integrated industrial robots. Summary of the Invention

[0006] The purpose of this invention is to provide a self-protective gas preheating device for robotic welding that heats the protective gas while simultaneously cooling the push-pull wire motor.

[0007] The technical solution of this utility model is:

[0008] A self-protective gas preheating device for robotic welding includes a self-protective gas delivery pipe and a push-pull wire motor. The push-pull wire motor comprises a motor, an external motor sealing cover, and a spiral air guide groove between the motor sealing cover and the motor. An air inlet is located at the rear of the motor sealing cover, and an air outlet is located at the front of the motor sealing cover. The self-protective gas delivery pipe is divided into two sections, including an air inlet pipe connected to the air inlet and an air outlet pipe connected to the air outlet. The air inlet and outlet communicate with the spiral air guide groove. The motor sealing cover includes a housing and an end cap located at the end of the housing. The end cap is made of aluminum, and the housing has a double-layer hollow structure.

[0009] Heat-conducting grooves are provided on the motor casing.

[0010] This invention achieves efficient heat dissipation by circulating protective gas to remove heat from the motor; it also utilizes the residual heat of the motor to preheat the protective gas, improving welding quality; and it simplifies the equipment structure, reducing energy consumption and maintenance costs.

[0011] This invention features efficient heat dissipation: the protective gas flow rate is controllable, improving heat dissipation efficiency and reducing motor temperature rise; energy saving and efficiency improvement: waste heat is used to preheat the gas, reducing the energy consumption of the gas heater; structural optimization: the independent cooling fan is eliminated, reducing the size and weight of the equipment; improved welding quality: the preheated protective gas reduces weld porosity and improves the uniformity of weld penetration. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a structural schematic diagram of one embodiment of the present invention. Detailed Implementation

[0014] A self-protective gas preheating device for robotic welding includes a self-protective gas delivery pipe and a push-pull wire motor. The push-pull wire motor includes a motor 5, a motor sealing cover 1, and a spiral guide gas groove 4 between the motor sealing cover and the motor. An air inlet 2 is located at the rear of the motor sealing cover, and an air outlet 9 is located at the front of the motor sealing cover. The self-protective gas delivery pipe is divided into two sections, including an air inlet pipe 3 connected to the air inlet and an air outlet pipe 10 connected to the air outlet. The air inlet and air outlet are connected to the spiral guide gas groove. The protective gas enters the spiral guide gas groove from the air inlet and air inlet, and the heat of the motor preheats the protective gas. The preheated protective gas is then directed to the front end of the welding nozzle of the welding torch through the air outlet and air outlet.

[0015] A heat-conducting groove 6 is provided on the motor housing. The motor sealing cover includes a housing and an end cap disposed at the end of the housing. The end cap is made of aluminum body 7, and the housing adopts a double-layer hollow structure. The end cap is fixed to the housing by screws 8.

[0016] Workflow:

[0017] The protective gas enters the spiral guide gas groove inside the motor sealing cover through the air inlet pipe to absorb the heat of the motor; the heated gas is directed to the front end of the welding nozzle of the welding gun through the air outlet pipe to preheat the welding area; the aluminum bracket further assists in heat dissipation through conduction, forming a three-dimensional heat dissipation network.

Claims

1. A self-shielded gas preheating device for robot welding, comprising a self-shielded gas delivery tube, a push-pull wire motor, characterized in that: The push-pull wire motor comprises a motor, a motor sealing cover is arranged outside the motor, a spiral flow guide air groove is arranged between the motor sealing cover and the motor, an air inlet nozzle is arranged at the rear of the motor sealing cover, and an air outlet nozzle is arranged at the front of the motor sealing cover; the self-protection gas conveying pipe is divided into two sections, comprising an air inlet pipe connected with the air inlet nozzle and an air outlet pipe connected with the air outlet nozzle; the air inlet nozzle, the air outlet nozzle and the spiral flow guide air groove are communicated; the motor sealing cover comprises a cover shell and an end cover arranged at the end of the cover shell, the end cover is made of an aluminum body, and the cover shell is made of a double-layer hollow structure.

2. A self-shielded gas preheating device for robotic welding according to claim 1, characterized in that: A heat conduction groove is arranged on the shell of the motor.

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