Analysis of the entire process of making a mining crusher model
1、 Process design stage
Prototype deconstruction: Real equipment data is obtained using 3D scanning technology, scaled proportionally to a 1:50 scale using CAD software, with a focus on preserving iconic structural features such as jaw plates, flywheels, and frames.
Modular disassembly: The whole is decomposed into 12 independently machinable components, and a nested structure design is adopted to ensure assembly accuracy. A 0.2mm assembly gap is reserved for key connection parts.
2、 Material selection and processing
Main framework:
Select 3mm thick acrylic sheet laser cutting to form, and shape the arc-shaped structure through hot bending process
The metal parts are made of brass etched sheets, which are manually shaped after annealing treatment
Moving parts:
The eccentric shaft is machined with a 1.5mm stainless steel rod by turning, and the surface is treated with wire drawing
The jaw plate adopts resin flipping mold and embedded steel wire skeleton to enhance strength
3、 Step by step production process
Basic Construction:
The rack adopts a stacked adhesive method, and the edges of each layer of acrylic board are softened with acetone and pressed together
The flywheel is machined with a tooth shaped profile using a CNC engraving machine, and a counterweight lead block is added to the back
Dynamic mechanism:
The crank connecting rod system is connected using miniature bearings and coated with molybdenum disulfide grease
Paste sandpaper inside the crushing chamber to simulate wear effect
4、 Surface treatment technology
Imitation of old craftsmanship:
After spraying the rust colored primer as a whole, use a sponge dipped in copper green powder to wipe the area locally
Apply black enamel paint to the bolt joint to create a sense of oil stains
Detail Enhancement:
The hydraulic pipeline is made of 0.5mm copper wire winding, and the interface is simulated to leak oil by dripping glue
The nameplate uses transfer printing technology to replicate the original factory logo
5、 Acceptance criteria
Static detection: All moving parts maintain balance under their own weight
Dynamic testing: When manually rotating the flywheel, the opening and closing amplitude error of the jaw plate is less than 0.5mm
Color matching: Pantone color card comparison shows that the color difference in key areas does not exceed level 2
