Mold design of comb in the hottest pr0e environmen

2022-08-05
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Comb die design in PR0/E environment

Abstract: This paper describes the design process of comb punch and die by using pre/E software. This paper introduces how to use pre/E software to establish the solid model of comb parts, and then take this solid model as a reference model to design the comb die. The mold design also includes the layout of the reference model, the setting of the shrinkage rate, the design of the blank workpiece, the design of the parting surface, the partition of the volume block, the extraction of mold components and the design of the gating system. The punch and die of the comb are mainly created

computer aided design software PR0/E is a parameterized solid modeling software. The parameterized feature modeling technology of PR0/E greatly reduces the drawing workload of designers and improves the efficiency and quality of product design. The unique advantages of mold design under PR0/E environment give it infinite vitality, making it develop rapidly and widely used. The advantages of CAD/CAM can not be compared with traditional mold design methods in improving productivity, improving quality, reducing cost and reducing labor intensity. The research group uses pre/E software to establish the solid model of comb parts, and then uses this solid model as a reference model to design the comb mold. The practice has proved that the production cycle of the die can be shortened by using the corresponding development tools and technologies of PR0/E. 1.3 adopting the precise electro-hydraulic servo proportional valve group control technology can save time and improve productivity, greatly reduce the cost, improve the die quality, and liberate the designers from the tedious technology and drawing work. This paper focuses on the example of creating the punch and die of the comb

1. Create comb solid modeling with Pro/E

the system starts the part solid modeling module and displays the current modeling file named "Su" at the top of the interface. Through solid modeling, the solid model of comb is made

2. Apply PR0/E software to design mold components

(1) transfer into the mold reference model

(1.) Start the mold design module, select "t", and click the open button:

(2.) Enter the first reference model name "suzi_ref" in the "reference model name" column, and click OK:

(3.) Continue to assemble the second, third and fourth reference models in the same way as the first one, and the face constraints are the same. The reference model names are "suzi_pef_1", "suzi_pef_2", "suzi_pef_3" respectively

(4.) Hide the figure behind the datum plane of the 4 reference models themselves

(2) set shrinkage rate

select the shrinkage → by size command in the menu manager. The system prompts you to select the reference model to set the shrinkage rate. Select any one of the four reference models in the design area. The shrinkage rate is "0.0056"

(3) design blank workpiece

(1.) Manually create a blank workpiece, and enter the blank workpiece name "Muk" in the name column

(2.) To extrude, click to create an extruded section. System spring section prompt dialog box, select main_ PARTING_ PLN datum is sketch plane, select mold_ The front datum plane is the sketch view direction reference and is set as the bottom in the direction column. Enter sketch. Select the dimension reference. Draw a rectangle. Two side extrusion, enter the extrusion height of 40. Generate a blank

(4) design parting surface

select Add → smooth → finish in the menu manager. Select main_ PARTING_ PLN datum is a flat surface sketch plane. Enter sketch. Click the edge button to select the four edges of the workpiece to complete the creation of the parting surface

(5) split volume block

select the [mold volume block] → [split] → [finish] command. Select the runoff surface to divide the surface for the mold volume block. The system highlights the upper part of the blank workpiece and pops up the volume block name input pair 5 Puncture speed: 10 ~ 40mm/s (adjustable) dialog box. The system highlights the lower part of the workpiece, and the volume block name input dialog box pops up

(6) extract mold components

select mold components → extract in the menu manager. Click to select all volume blocks

(7) mold opening

mask the four reference models before mold opening, and select the [mold feeding hole] → [define spacing] → [define movement] command in the menu manager. Select the upper mold as the moving part, select the fiber bundle part, and select the top surface of the upper mold as the moving direction reference. The movement distance is "100". The upper die moves upward. The moving method of the lower mold is the same as that of the upper mold

(8) trace design

in the menu manager, select the [feature] → [cavity component] → [entity] → [material cut] → [rotation] → [entity] → [finish] command. The rotation feature option appears in the information prompt area at the bottom left. Click the create rotation section button and select mold_ The frlnt datum is a sketched surface. The system automatically selects mold_ The right datum is the sketch view direction reference, and the direction is right. Sketch the vertical centerline. Use the circle and line I constraint command keys to draw mountain grass. Complete the injection

(9) sprue design

(1.) In the menu manager, select features> cavity components> entity> cut material> rotation> entity> finish. The rotation feature option appears in the information prompt area at the bottom left. Click the create rotation section button, and a section prompt dialog box will pop up, asking you to select the rotation section sketch plane and sketch view direction reference. Select main_ The dividing datum is a sketched surface. The system automatically selects mold_ The right datum is the sketch view direction reference, and the direction is right

(2.) Point sketch, accept the default sketch direction, and select the dimension datum. Use centerline, circle, line, and constraint command keys to draw a sketch. Finish the runner design and complete the runner design

(10) design of shunt channel

the design method of shunt channel is the same as that of main channel

(11) gate design

the gate design method is also the same as the runner. Just change the rotation to stretching. Be careful that the gate is not too large to prevent the product from being affected

(12) waterline design

select [feature] → [cavity component] → [waterline] in the menu manager. Enter waterline diameter 6. The system prompts you to select a waterline sketch plane. Select generate datum offset in the menu manager to create a new datum plane as the waterline sketch plane. Select main_ The dividing datum plane is the offset plane, and the offset is -5. Enter the sketch interface, and use the line command to draw two horizontal line segments as waterline paths. Select end condition in the waterline dialog box, click define, and select two waterline ends. Select through w/counterbore → finish/callback in the menu manager. Enter the diameter of the first counterbore 8 and the depth of the first counterbore 10, and enter the diameter of the first two counterbores 8 and the depth of the first two counterbores 10. With the same method, we can make the other side of the high-quality experimental machine measurement data accurate countersink. Generate a finish line

(1 3) mold

select mold -> create in the menu manager, and enter the name molding to generate a mold

3. Conclusion

the application of the software PR0/E with strong CAD/CAM integration function in the mold has shortened the mold design and manufacturing week. 1. The main use period has increased the value and market competitiveness of the mold. This example has successfully completed the mold design of the comb through the layout of the reference model, the setting of the shrinkage rate, the design of the blank workpiece, the design of the parting surface, the partition of the volume block, the extraction of the mold elements and the design of the gating system, which provides a simple way for the mold design of similar products

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