lifting transfer mechanism solidworks2016

Last crawled date: 1 year, 10 months ago

lifting transfer mechanism
specifications
purpose and action
check the pinion by image recognition.
object artifact
resin gear
workpiece specification: φ 34, height 29mm
characteristic
specification and size
overall dimension: 320 × 320 × 341mm
total height: 341 mm
up and down stroke: 30mm
feed stroke: 50mm
specification and size
workpiece feed positioning accuracy: ± 0.5
selection basis of main parts
compared with the ordinary cylinder with guide rod, its cross-sectional area is about 1 / 2, and its size is small.
key points of design
calculation process of main parts
the cylinder diameter is selected according to the workpiece load conditions, and the camera and lens are selected according to the inspection resolution.
select inner diameter of pneumatic linear sliding cylinder
service conditions: horizontal installation
condition value: load weight m = 0.5kg
friction coefficient μ = 0.2
according to the gravity acceleration g = 9.8m/s
actual load f = μ mg = 0.2 × 0.5 × 9.8 = 0.98n
service pressure p = 0.4mpa
according to the load rate η = 50%
required cylinder force f0 = (f / η) × 100 = (0.98 / 50) × 100 = 1.96n
cylinder inner diameter do = √ (1.274 × fo / p) = √ (1.274 × 1.96 / 0.4) = 2.50mm
the inner diameter of the cylinder is 12mm, no problem.
select inner diameter of cylinder with guide rod
service conditions: vertical installation
condition value: load weight m = 0.21kg
according to the gravity acceleration g = 9.8m/s
actual load f = mg = 0.21 × 9.8 = 2.06 n
service pressure p = 0.4mpa
according to the load rate η = 50%
required cylinder force f0 = (f / η) × 100 = (2.06 / 50) × 100 = 4.12n
cylinder inner diameter do = √ (1.274 × fo / p) = √ (1.274 × 4.12 / 0.4) = 3.62mm
the inner diameter of the cylinder is 12mm, no problem.
select camera, lens
condition: check object workpiece: gear profile 34mm
: inspection of unqualified products (above 0.1 mm)
camera selection: 1 / 1.8 1.92 megapixel (1600 × 1200)
1 / 1.8 ≈ 1 / 2,
field of view 42 × 56 (in accordance with workpiece shape)
wd90mm lens selection close up lens.
{0.035mm for 1 pixel (1600 pixels for 56mm)
·0.1 mm can be checked.
key points of structure making and design
the cylinder with guide rod and pneumatic linear slide table are used in the workpiece conveying.
when the workpiece is unstable in the image inspection position (workpiece floating, etc.), the workpiece posture recognition sensor should be added.