This paper presents an interactive disassembly planning (DP) approach with human and robot collaboration (HRC). Disassembly operations by simultaneously human and robot can enhance the productivity and reduce the product cost. The use of robots in handling and assembling of parts becomes a necessity.
Deltacad open new workspace manual#
Manual disassembly has low effectiveness and high work cost whereas robotic disassembly is not sufficiently flexible to operate difficult operations. It is always accomplished by human or robot. The proposed approach reduces the AT change during the mounting operations.ĭisassembly is a main phase of maintenance, remanufacturing and the end of life. The dynamic interference process allows the eventual collision detection between tool and component and avoids it. The proposed approach introduces the concept of AT workspace to simulate and select ASPs that respect this criterion. Finally, the remaining assembly sequences are treated by the third algorithm to reduce the AT change during the mounting operation. The proposed algorithm verifies, for each assembly sequence, the minimal required workspace of used AT and eliminates the ASPs non-respecting this criterion. Moreover, a comparative study is done to highlight its advantages.
An illustrative example is used to explain the different steps of this proposed approach. The obtained results are treated by the second algorithm which is based on assembly tools (ATs) workspace criterion. The first one generates a set of assembly sequences based on stability criteria. In this paper, an ASP generation approach, which is based on three main algorithms, is proposed. Although this paper aims to improve the quality of ASP it is necessary to increase the number of criteria which must be taken into account when generating ASPs. In this context, researchers developed several methods to generate and optimize ASP based on various criteria. In fact, a good mounting order allows the time decrease of the assembly process which leads to the reduction of production costs. Layout viewports may need to be moved or resized, or the plot scale updated, when an alternate unit page size is selected after conversion. For example, when an imperial paper size is selected in a drawing that has been converted to metric.During the design of a new product, the generation of assembly sequences plans (ASPs) has become one of the most important problems taken into account by researchers.For the SCALE command method, adjust the dimension text and arrowhead height in the dimension style as needed.When prompted for scale factor, enter the appropriate scale factor for the units to be converted, based on the following list:.At the Select objects prompt, enter All.Select the checkbox for "Explode" and click OK.Deselect all options so the drawing will go in at 0,0, no scaling, and no rotation.Click the Browse button and select the inch-based drawing.Enter the INSERT command (or CLASSICINSERT in AutoCAD 2020 and newer).Select "Decimal" for Type and "Feet" for Insertion scale.
Start a new drawing using the acad.dwt template.Don't use DWGUNITS for AutoCAD Plant 3D.Īlternative 2: Use the INSERT command In this example the components will be converted from inches to feet. but not all AutoCAD Plant 3D components like AutoCAD Plant 3D elbows. Notes for AutoCAD Plant 3D: This command can only convert plain AutoCAD components like lines, arcs. Scale objects in current drawing to reflect change in units? : ** existing objects will not change size unless you specifically ** ** All new objects will be drawn according to the new unit, but ** ** WARNING: you have changed the unit for this drawing database. Scale objects from other drawings upon insert? : See the following example of command line text ( in red what you have to enter) In this example the drawing will be converted from inches to millimeter: Note: According to the chosen options, some prompts may be skipped by pressing Enter.