Robot laser copper pipe welding equipment for heat exchanger

Abstract

The heat exchanger robot laser copper pipe welding equipment comprises a rack, a robot industrial personal computer and a six-axis robot are installed on the rack, and the robot industrial personal computer is electrically connected with the six-axis robot; a laser welding head with a thermodetector and a 3D camera are mounted at the end part of the six-axis robot; the rack is further provided with a product conveying belt, a positioning groove used for containing a copper pipe is formed in the product conveying belt, and the copper pipe is placed in the positioning groove, does linear motion through the product conveying belt and moves from one end of the rack to the other end of the rack. The rack is further provided with an installation support, the installation support comprises a first support and a second support, the positioning groove is located between the first support and the second support, and the first support is provided with a shielding gas device. Welding of the copper pipe is completed through cooperation of the laser beam and movement of the six-axis robot.

Description

Technical Field

[0001] The invention relates to welding technology, and in particular to heat exchanger robot laser copper tube welding equipment. Background Art

[0002] Copper tubes have good electrical and thermal conductivity properties, and are the main materials for the conductive and heat dissipation accessories of electronic products. They have become the first choice for modern contractors to install water pipes, heating and cooling pipes in all residential commercial houses. Copper tubes have strong corrosion resistance, are not easy to oxidize, and are not easy to react chemically with some liquid substances, and are easy to bend and shape.

[0003] At present, the commonly used copper pipe welding method is high temperature baking heating welding with a flame gun (gas and acetylene). The most commonly used is the neutral flame, which is characterized by the size of the flame core depending on the composition, consumption and flow rate of the combustion gas. The diameter of the torch nozzle hole determines the diameter of the flame core, and the flow rate of the mixed gas determines the length of the flame core. The flame of the neutral flame is divided into 3 layers, the flame core is pointed cone-shaped, white and bright, the inner flame is blue-white, and the outer flame gradually changes from lavender to orange and blue from the inside to the outside. The temperature is about 3000-3500℃, and the volume ratio of oxygen to acetylene gas is 1:1.2. Neutral flames are mostly used for pipe welding of refrigeration and air conditioning. In the process of copper pipe welding, defects such as cold welding, melting and dissolution, overburning and burning through are very likely to occur. Laser welding has become the current development trend.

[0004] Therefore, it is necessary to provide a heat exchanger robot laser copper tube welding device to solve the above problems. Summary of the invention

[0005] The purpose of the invention is to provide a heat exchanger robot laser copper tube welding device.

[0006] A heat exchanger robot laser copper tube welding device comprises a frame, a robot industrial computer and a six-axis robot are mounted on the frame, and the robot industrial computer and the six-axis robot are electrically connected;

[0007] A laser welding head with a temperature meter and a 3D camera are installed at the end of the six-axis robot;

[0008] The rack is also provided with a product conveyor belt, on which a positioning groove for placing the copper tube is provided. The copper tube is placed in the positioning groove, moves linearly through the product conveyor belt, and moves from one end of the rack to the other end.

[0009] The frame is also provided with a mounting bracket, which includes a first bracket and a second bracket. The positioning groove is located between the first bracket and the second bracket. The first bracket is provided with a protective gas device.

[0010] Furthermore, a six-axis robot is located above the side of the product conveyor belt to perform laser welding.

[0011] Furthermore, the first bracket and the second bracket are arranged above the product conveyor belt, and the two are symmetrically arranged.

[0012] Furthermore, the laser mode adopts a blue light laser.

[0013] Furthermore, the welding process is:

[0014] (1) The operator places the heat exchanger on the conveyor line;

[0015] (2) Conveyor line transportation;

[0016] (3) 3D camera takes photos to identify the location of the welding point;

[0017] (4) Hyperbrain EAI software generates welding paths based on the welding points provided by the camera;

[0018] (5) Robotic laser welding;

[0019] (6) Conveyor line transports unloading materials.

[0020] Compared with the prior art, the present invention uses a laser beam in conjunction with the movement of a six-axis robot to complete the welding of copper tubes. The welding does not use traditional processes such as open flames, avoiding defects such as cold welding, corrosion and dissolution, over-burning and burn-through. At the same time, with the six-axis robot and industrial camera, the automatic identification of the product welding point can be achieved. It can reduce a lot of labor and improve the quality of the product. It is the most ideal copper tube welding method. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0022] Figure 2 It is a plan view of the present invention. DETAILED DESCRIPTION

[0023] Example:

[0024] Reference Figure 1 and Figure 2 This embodiment shows a heat exchanger robot laser copper tube welding device, including a frame 1, on which a robot industrial computer 2 and a six-axis robot 3 are installed, and the robot industrial computer 2 and the six-axis robot 3 are electrically connected.

[0025] A laser welding head 4 with a temperature measuring instrument and a 3D camera 5 are installed at the end of the six-axis robot 3 .

[0026] The rack 1 is also provided with a product conveyor belt 6, and a positioning groove 61 for placing the copper tube is provided on the product conveyor belt 6. The copper tube is placed in the positioning groove 61, and moves linearly through the product conveyor belt 6 and moves from one end of the rack to the other end. The six-axis robot 3 is located above the side of the product conveyor belt 6 to perform laser welding on the moving copper tube.

[0027] The frame 1 is also provided with a mounting bracket 7, which includes a first bracket 71 and a second bracket 72. The first bracket 71 and the second bracket 72 are arranged above the product conveyor belt, and the two brackets are arranged symmetrically. The positioning groove 61 is located between the first bracket 71 and the second bracket 72, so that the copper tube is also located between the first bracket 71 and the second bracket 72 when moving on the product conveyor belt. The first bracket 71 is provided with a protective gas device 8, which is aligned with the copper tube on the product conveyor belt to play a role in welding protection.

[0028] Laser mode: using blue laser.

[0029] Welding method: The laser installed on the robot moves to the corresponding position through the robot, generates point laser, and melts the solder at the welding position.

[0030] The workflow of the present invention is as follows:

[0031] (1) The operator places the heat exchanger on the conveyor line;

[0032] (2) Conveyor line transportation;

[0033] (3) 3D camera takes photos to identify the location of the welding point;

[0034] (4) Hyperbrain EAI software generates welding paths based on the welding points provided by the camera;

[0035] (5) Robotic laser welding;

[0036] (6) The conveyor line transports the unloaded materials.

[0037] The specific advantages are as follows:

[0038] (1) The production speed can be achieved at 2min / pcs;

[0039] (2) The production qualification rate is above 99.9%;

[0040] (3) Production data can be consulted, downloaded, read, and analyzed, allowing manufacturers to reduce production losses and increase production capacity.

[0041] Compared with the prior art, the present invention uses a laser beam in conjunction with the movement of a six-axis robot to complete the welding of copper tubes. The welding does not use traditional processes such as open flames, avoiding defects such as cold welding, corrosion and dissolution, over-burning and burn-through. At the same time, with the six-axis robot and industrial camera, the automatic identification of the product welding point can be achieved. It can reduce a lot of labor and improve the quality of the product. It is the most ideal copper tube welding method.

[0042] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A heat exchanger robot laser copper tube welding equipment, characterized in that: It includes a frame, on which a robot industrial computer and a six-axis robot are installed, and the robot industrial computer and the six-axis robot are electrically connected; A laser welding head with a temperature meter and a 3D camera are installed at the end of the six-axis robot; The rack is also provided with a product conveyor belt, on which a positioning groove for placing the copper tube is provided. The copper tube is placed in the positioning groove, moves linearly through the product conveyor belt, and moves from one end of the rack to the other end. The frame is also provided with a mounting bracket, which includes a first bracket and a second bracket. The positioning groove is located between the first bracket and the second bracket. The first bracket is provided with a protective gas device.

2. A heat exchanger robot laser copper tube welding device according to claim 1, characterized in that: The six-axis robot is located above the side of the product conveyor belt to perform laser welding.

3. A heat exchanger robot laser copper tube welding device according to claim 1, characterized in that: The first bracket and the second bracket are arranged above the product conveyor belt, and the two are arranged symmetrically.

4. A heat exchanger robot laser copper tube welding device according to claim 1, characterized in that: The laser mode adopts a blue light laser.

5. A heat exchanger robot laser copper tube welding device according to claim 1, characterized in that: The welding process is as follows: (1) The operator places the heat exchanger on the conveyor line; (2) Conveyor line transportation; (3) 3D camera takes photos to identify the location of the welding point; (4) Hyperbrain EAI software generates welding paths based on the welding points provided by the camera; (5) Robotic laser welding; (6) The conveyor line transports the unloaded materials.

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