Large heavy-load steel member flat-position welding asynchronous control method
A technology of asynchronous control and steel components, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of low operation efficiency, safety injury, and insignificant overall effect, and achieve flat welding operation efficiency Lifting, good effect
Active Publication Date: 2020-11-17
XUZHOU XCMG MINING MACHINERY CO LTD
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Problems solved by technology
[0003] For the welding of the key seam of the arm of the mining excavator, domestic and foreign well-known brand main engine manufacturers have tried various methods, but the overall effect is not significant. The above method not only has low working efficiency, but also caused safety accidents
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[0028] The present invention will be further described below based on the drawings and embodiments.
[0029] An asynchronous control method for horizontal welding of large heavy-duty steel components includes the following steps:
[0030] A. Build a three-dimensional workstation digital model and establish a database of all positions of the workpiece. The specific process is:
[0031] A1. Build 3D models of related workpieces, positioners and fixtures: use 3D design software to build an initial 3D design workstation with 3D models of asynchronous control positioners, excavating arm workpieces and supporting fixtures, with the positioner as the base body remaining unchanged , Workpieces and fixtures are reorganized to establish a new three-dimensional model of the workstation according to design requirements.
[0032] A2. Simulate the feasibility of the welding seam of the relevant workpiece to the flat position: Based on the digital model of the 3D workstation, select different types ...
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The invention belongs to the technical field of steel member flat-position welding control methods, and particularly relates to a large heavy-load steel member flat-position welding asynchronous control method. The large heavy-load steel member flat-position welding asynchronous control method specifically comprises the following steps of building a three-dimensional model of a related workpiece,a positioner and a fixture; simulating feasibility of enabling weld joints of related workpieces to flat positions; carrying out static load stress analysis on a workpiece; carrying out turning deflection torque and rotational inertia analysis on the workpiece; carrying out asynchronous lifting stress analysis on the workpiece; outputting a related workpiece all-position state data parameter group; designing a workpiece loading-synchronous / asynchronous displacement-unloading process logic program to realize automatic execution of the whole process; designing a workpiece synchronous lifting, overturning and displacement control program; designing a workpiece left-high and right-low asynchronous displacement control program; designing a workpiece left-low and right-high asynchronous displacement control program; designing a workpiece out-of-tolerance compensation, fault alarming and safety self-locking program to realize closed-loop feedback and safety control; and outputting a whole setof logic control program of the related workpieces. By using the large heavy-load steel member flat-position welding asynchronous control method, a large heavy-load steel member can be efficiently welded in a flat position.
Description
Technical field [0001] The invention belongs to the technical field of control methods for horizontal welding of steel components, and in particular relates to an asynchronous control method for horizontal welding of large heavy-duty steel components. Background technique [0002] Take the mining excavator as an example, the structure of the mining excavator arm is mostly "arch", and the front and back ends are connected by butt welds, but they are located on a slope of 20°~40°, which makes welding difficult. , The quality of weld formation is not reliable. More than 70% of the structural parts on the market are cracked by the welds here. In severe cases, it will directly lead to the scrapping of the overall structural parts and cause serious economic losses. In addition, due to the complex technological characteristics of the boom manufacturing process and the harsh working environment of mining equipment, at this stage, the average service life of various brands of excavating ...
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Login to View More IPC IPC(8): B23K37/00
CPCB23K37/00
Inventor 王国友魏守盼荆鑫郭德森朱明涛彭灿邵光彬刘洪波
Owner XUZHOU XCMG MINING MACHINERY CO LTD