Welding simulation system and method

Abstract

The invention discloses a welding simulation system and method, which can perform simulation analysis on splicing and welding of two workpieces and calculate an installation action scheme, a clamping action scheme and a welding action scheme of an industrial robot so as to realize automatic splicing and welding of the two workpieces and improve the splicing precision and the welding quality of the two workpieces.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical simulation control, and specifically to a welding simulation system and method. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure.

[0003] In the manufacturing industry, it is often necessary to weld workpieces, such as assembling and welding two workpieces. In order to weld the two workpieces, the two workpieces need to be clamped and fixed separately during welding. Generally, manual installation of fixtures, assembly and clamping of the two workpieces, and welding of the two workpieces are usually performed. However, manual work is inefficient and cannot guarantee the assembly accuracy and welding quality of the two workpieces. Summary of the invention

[0004] In order to solve the defects of the prior art, the present invention provides a welding simulation system for assembling and welding two workpieces, comprising: A welding platform having a plurality of mounting positions for inserting mounting fixtures and distributed in an array; A first clamp, which is used to be inserted and installed on a certain installation position of the welding platform and clamp the first workpiece during welding; A second clamp is used to be inserted and installed on a certain installation position of the welding platform and clamp the second workpiece during welding; An industrial robot, which inserts and installs a first fixture at a first installation position of a welding platform according to a first installation action plan, inserts and installs a second fixture at a second installation position of the welding platform according to a second installation action plan, clamps a first workpiece on the first fixture according to a first clamping action plan, assembles a second workpiece with the first workpiece and clamps the second workpiece on the second fixture according to a second clamping action plan, and welds the second workpiece at a welding position with the first workpiece according to a welding action plan; A welding control device calculates models of a welding platform, a first fixture, a second fixture, an industrial robot, a first workpiece, and a second workpiece, and performs simulation iterations based on the models to calculate: a first installation position, a second installation position, a first installation action plan, a second installation action plan, a first clamping action plan, a second clamping action plan, and a welding action plan.

[0005] The present invention also provides a welding simulation method, which adopts the welding simulation system mentioned above.

[0006] The specific contents of the present invention are described in detail in the specific implementation manner.

[0007] The advantages and beneficial effects of the present invention are: providing a welding simulation system and method, which can simulate and analyze the assembly welding of two workpieces, calculate the installation action plan, clamping action plan, and welding action plan of the industrial robot, thereby realizing the automated assembly welding of the two workpieces and improving the assembly accuracy and welding quality of the two workpieces. DETAILED DESCRIPTION

[0008] The specific implementation of the present invention is further described below in conjunction with the examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0009] The technical solutions specifically implemented in the present invention are as follows: The present invention provides a welding simulation system, which is used for assembling and welding two workpieces, comprising: A welding platform having a plurality of mounting positions for inserting mounting fixtures and distributed in an array; A first clamp, which is used to be inserted and installed on a certain installation position of the welding platform and clamp the first workpiece during welding; A second clamp is used to be inserted and installed on a certain installation position of the welding platform and clamp the second workpiece during welding; An industrial robot, which inserts and installs a first fixture at a first installation position of a welding platform according to a first installation action plan, inserts and installs a second fixture at a second installation position of the welding platform according to a second installation action plan, clamps a first workpiece on the first fixture according to a first clamping action plan, assembles a second workpiece with the first workpiece and clamps the second workpiece on the second fixture according to a second clamping action plan, and welds the second workpiece at a welding position with the first workpiece according to a welding action plan; A three-dimensional scanner, which is used to scan the modeling data of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece; A welding control device, which calculates the models of a welding platform, a first fixture, a second fixture, an industrial robot, a first workpiece, and a second workpiece according to modeling data scanned by a three-dimensional scanner, and iteratively simulates and calculates according to the models: a first mounting position on the welding platform for mounting the first fixture, a second mounting position on the welding platform for mounting the second fixture, a first installation action scheme for controlling the industrial robot to mount the first fixture on the first mounting position of the welding platform, a second installation action scheme for controlling the industrial robot to mount the second fixture on the second mounting position of the welding platform, a first clamping action scheme for controlling the industrial robot to clamp the first workpiece on the first fixture, a second clamping action scheme for controlling the industrial robot to assemble the second workpiece with the first workpiece and clamp the second workpiece on the second fixture, a welding position of the second workpiece with the first workpiece, and a welding action scheme for controlling the industrial robot to weld the welding position of the second workpiece with the first workpiece; The industrial robot includes: a moving robot arm for transferring a first fixture, a second fixture, a first workpiece, and a second workpiece to predetermined positions, an operating robot arm for operating the first fixture to clamp the first workpiece and operating the second fixture to clamp the second workpiece, and a welding robot arm for welding the welding position of the second workpiece and the first workpiece; the moving robot arm, the operating robot arm, and the welding robot arm are all multi-axis robots.

[0010] The present invention also provides a welding simulation method, which adopts the above-mentioned welding simulation system and comprises the following steps: A three-dimensional scanner is used to scan the modeling data of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece; Then, the welding control device calculates the models of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece according to the modeling data scanned by the three-dimensional scanner, and iteratively simulates and calculates according to the models: a first mounting position on the welding platform for mounting the first fixture, a second mounting position on the welding platform for mounting the second fixture, a first installation action plan for controlling the industrial robot to mount the first fixture on the first mounting position of the welding platform, a second installation action plan for controlling the industrial robot to mount the second fixture on the second mounting position of the welding platform, a first clamping action plan for controlling the industrial robot to clamp the first workpiece on the first fixture, a second clamping action plan for controlling the industrial robot to assemble the second workpiece with the first workpiece and clamp the second workpiece on the second fixture, a welding position of the second workpiece with the first workpiece, and a welding action plan for controlling the industrial robot to weld the welding position of the second workpiece with the first workpiece; Then the industrial robot inserts and installs the first fixture in the first installation position of the welding platform according to the first installation action plan, inserts and installs the second fixture in the second installation position of the welding platform according to the second installation action plan, clamps the first workpiece on the first fixture according to the first clamping action plan, assembles the second workpiece with the first workpiece and clamps the second workpiece on the second fixture according to the second clamping action plan, and welds the welding position of the second workpiece and the first workpiece according to the welding action plan.

[0011] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A welding simulation system, characterized in that: It is used to assemble and weld two workpieces, including: A welding platform having a plurality of mounting positions for inserting mounting fixtures and distributed in an array; A first clamp, which is used to be inserted and installed on a certain installation position of the welding platform and clamp the first workpiece during welding; A second clamp is used to be inserted and installed on a certain installation position of the welding platform and clamp the second workpiece during welding; An industrial robot, which inserts and installs a first fixture at a first installation position of a welding platform according to a first installation action plan, inserts and installs a second fixture at a second installation position of the welding platform according to a second installation action plan, clamps a first workpiece on the first fixture according to a first clamping action plan, assembles a second workpiece with the first workpiece and clamps the second workpiece on the second fixture according to a second clamping action plan, and welds the second workpiece at a welding position with the first workpiece according to a welding action plan; A welding control device calculates models of a welding platform, a first fixture, a second fixture, an industrial robot, a first workpiece, and a second workpiece, and performs simulation iterations based on the models to calculate: a first installation position, a second installation position, a first installation action plan, a second installation action plan, a first clamping action plan, a second clamping action plan, and a welding action plan.

2. The welding simulation system according to claim 1, characterized in that: Also includes: A three-dimensional scanner is used to scan the modeling data of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece.

3. The welding simulation system according to claim 2, characterized in that: The welding control device calculates the models of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece according to the modeling data scanned by the three-dimensional scanner.

4. The welding simulation system according to claim 3, characterized in that: The industrial robot includes: a moving robot arm for transferring a first fixture, a second fixture, a first workpiece, and a second workpiece to predetermined positions, an operating robot arm for operating the first fixture to clamp the first workpiece and operating the second fixture to clamp the second workpiece, and a welding robot arm for welding the second workpiece to the welding position of the first workpiece.

5. The welding simulation system according to claim 4, characterized in that: The object-moving robotic arm is a multi-axis robotic arm.

6. The welding simulation system according to claim 4, characterized in that: The operating robot arm is a multi-axis robot arm.

7. The welding simulation system according to claim 4, characterized in that: The welding robot arm is a multi-axis robot arm.

8. A welding simulation method, characterized in that: A welding simulation system according to any one of claims 3 to 7 is used, and comprises the following steps: A three-dimensional scanner is used to scan the modeling data of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece; Then, the welding control device calculates the models of the welding platform, the first fixture, the second fixture, the industrial robot, the first workpiece, and the second workpiece according to the modeling data, and performs simulation iteration according to the models to calculate: the first installation position, the second installation position, the first installation action plan, the second installation action plan, the first clamping action plan, the second clamping action plan, and the welding action plan; Then the industrial robot inserts and installs the first fixture in the first installation position of the welding platform according to the first installation action plan, inserts and installs the second fixture in the second installation position of the welding platform according to the second installation action plan, clamps the first workpiece on the first fixture according to the first clamping action plan, assembles the second workpiece with the first workpiece and clamps the second workpiece on the second fixture according to the second clamping action plan, and welds the welding position of the second workpiece and the first workpiece according to the welding action plan.