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No.000077 Pressure Labeling Fixture
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Long stroke toggle mechanism
Relevant category
Tension spring
| Product name | Extension Springs - Standard Lengths |
|---|---|
| Part number | AUA8-65 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Operational load
Available sizes
■Tension spring (Overview)
| Load type | Material | O.D. Range | Free length range | Both ends hooked | ||
|---|---|---|---|---|---|---|
| Spring Steel | 304 Stainless Steel | S-shape | 90 degree S | |||
| Ultra light load | ○ | ○ | φ2 - 12 | 10 - 100 | ○ | - |
| Light load | ○ | △ | φ2 - 20 | 10 - 175 | ○ | △ |
| Light-Med. load | ○ | △ | φ2 - 20 | 10 - 175 | ○ | △ |
| Med. load | ○ | △ | φ2 - 24 | 10 - 200 | ○ | △ |
| Med.-Heavy load | ○ | - | φ2 - 12 | 10 - 100 | ○ | - |
| Heavy load | ○ | △ | φ3 - 24 | 10 - 200 | ○ | △ |
○: All selectable
△: Some are not available
-: Not available
Performance info.
■Load info. on tension spring
| Load type | Reference load (N) | |
|---|---|---|
| Min. | Max. | |
| Ultra light load | 0.69 | 19.6 |
| Light load | 1.86 | 78.45 |
| Light-Med. load | 2.45 | 98.07 |
| Med. load | 3.53 | 225.55 |
| Med.-Heavy load | 6.47 | 83.36 |
| Heavy load | 8.8 | 430.51 |
Technical calculations
■Tension spring load calculations
P ＝ Pi + （k × F）
P: Load (N)
Pi: Initial tension (N)
k： Spring constant(N/mm)
F: Deflection (mm)
Offset lever
| Product name | Stationary Handles - Offset, Spherical Knob |
|---|---|
| Part number | LAGNS5-30-60-30 |
| Features | The length can be specified and the angle can be selected within the allowable range. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Ergonomically shaped and easy to generate force for this manual operation.
Available sizes
■Offset lever
| Material/Surface treatment | |
|---|---|
| Grip knob | Lever |
| Phenolic resin(Black) | 1045 Carbon Steel Cationic paint (Black) |
| 304 Stainless Steel/- | |
■Sizes and Dimensions
| Shape | Thread DIA. | Dimension(mm) | Angle (Select) | |
|---|---|---|---|---|
| M(Coarse) | [L 1 ] | [L 2 ] | [A] | |
| Grip type Ball knob type | 5 | 30 | 60 | 30 |
| 6 | ||||
| 8 | 30～100 Configure in 10mm increment | 60～100 Configure in 10mm increment | 30 45 60 90 | |
| 10 | ||||
| 12 | ||||
Oil-free metal bushing
| Product name | Oil Free Metal Bushings |
|---|---|
| Part number | SMZF8-8 |
| Features | Optimized for use in high load, low speed applications. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for low speed motion
Available sizes
■Oil-free metal bushing (Flanged)
■Sizes and Dimensions
| I.D. (mm) | Length(mm) | Material |
|---|---|---|
| 6 | 6-12(2Increment） | Cast Iron Class No.35 Special solid lubricant |
| 8 | 8-12(2Increment）、15 | |
| 10 | 10、12、15、20 | |
| 12 | 10、12、15、20、25 | |
| 15 | 15-30(5Increment) | |
| 16 | 15-30(5Increment) | |
| 20 | 20-30(5Increment)、40 | |
| 25 | 25、30-50（10Increment） | |
| 30 | 30-60（10Increment） |
Accuracy Info
■Accuracy of oil-free bushings
| I.D.(mm) | Tolerance G6 |
|---|---|
| 6 | +0.014 +0.005 |
| 8 | |
| 10 | |
| 12 | +0.017 +0.006 |
| 15 | |
| 16 | |
| 20 | +0.020 +0.007 |
| 25 | |
| 30 |
Performance info.
■Allowable properties of oil-free bushings (Reference values)
| Periodical lubrication | No lubrication | |
|---|---|---|
| Max. allowable load | 8N/mm² | 5Nmm² |
| Max. allowable speed | 0.25m/s | 0.15m/s |
| Max. allowable PV value | 0.8N/mm²・m/s | 0.5N/mm²・m/s |
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It is configured so that each sub-assembly unit can be used as it is or edited.
Application Overview
Purpose
- Labels are pressure bonded on stainless steel cases with manufactured toggle mechanism .
Points for use
- Labeling is manual, lever operated toggle mechanism.
Target workpiece
- Stainless steel case
External dims.: W50 x D30 x H19 mm - Label
External dims.: W50 x W30 x t (mm)
Design Specifications
Operating Conditions or Design Requirements
- External dimensions: W135 x D150 x H350 mm (Top edge of side plate)
- Moving section stroke: 50mm
Required Performance
- Operating load: 27.15N
Combination of compression and tension springs.
Selection Criteria for Main Components
- Tension springs
- Extra light tension spring with long stroke.
Design Evaluation
Verification of main components
- Select a spring type with appropriate operation load.
- Operational force
- Operational force = Compression spring load + Tension spring load = 13.72 + 13.43 = 27.15N
- Compression spring load
- Calculation formula: Reaction force F- kx
- Assumed applied pressure load (2pcs. used): 13.72N
- Assumed deflection when lever operated: x = 7mm (when set 1mm, stroked 6mm)
- k = F / x / (number of springs) = 13.72 / 7 / 2 = 0.98
- Spring constant: k = 0.98 N/mm selected
- Tension spring load
- Calculation formula: Reaction force F= kx + initial tension
- Assumed operation load (2pcs. used): F = 13.43N
- Initial tension: 1.08N
- Assumed deflection in operation: x = 74.4mm (when set 24.4mm, stroke 50mm)
- Spring constant: k = (13.43 - 1.08) / 74.4 / 2 = 0.083N/mm selected
Other Design Consideration
- Connection of the lever operation section and moving section is established by a linking mechanism.
- Shafts act as guides to allow for smooth operation.
- Compression spring load is adjusted by adjusting base guide position.
- Lubrication-free bushings are used for smooth sliding operation .
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