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No.000162 Grip and Rotate Feed Mechanism
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Grip and feed motion with a single cylinder
Related Category
Spring Anchors - Wrench Flats, with Notch
| Product name | Spring Anchors/Wrench Flats/with Notch |
|---|---|
| Part number | SAIPOK8-30 |
| Features | Posts for Tension Springs with Notched Hole which facilitates hooking of the tension springs. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for mounting the springs with swinging and tensile load
Available sizes
■Spring Anchors - Wrench Flats, with Notch / Full Threaded Under Head
| Material | Surface Treatment | Accessory |
|---|---|---|
| EN 1.1191 Equiv. | Black Oxide | Nut one pc (JIS Class 1) SWCH Equiv. |
| EN 1.4301 Equiv. | - | Nut one pc (JIS Class 1) EN 1.4301 Equiv. |
■Sizes and Dimensions
| O.D. | Overall Length | Thread Section Length (overall length - shown below) | Screw Dia. (Coarse) | Spring Latch Hole DIa. | Notched Slot Width | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 20 | 25 | 30 | 40 | 50 | 60 | 70 | |||||
| Ø4 | ○ | ○ | ○ | ○ | - | - | - | - | 8.5 | M4 | Ø1.5 | 1 |
| Ø5 | ○ | ○ | ○ | ○ | ○ | - | - | - | 9 | M5 | Ø2 | |
| Ø6 | - | ○ | ○ | ○ | ○ | ○ | - | - | 10 | M6 | ||
| Ø8 | - | - | ○ | ○ | ○ | ○ | ○ | ○ | 12 | M8 | Ø3 | 1.5 |
| Ø10 | - | - | - | ○ | ○ | ○ | ○ | ○ | 15 | M10 | Ø4 | 2 |
| Ø12 | - | - | - | - | ○ | ○ | ○ | ○ | 17 | M12 | Ø5 | 2.5 |
Links General Purpose
| Product name | Links/Both Ends Female Notch |
|---|---|
| Part number | LACG4-55-5 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable as an application for an economical completed product of the link mechanism parts
Available sizes
■Links General Purpose Round
| Material | EN 1.0038 Equiv. |
|---|
■Sizes and Dimensions
| Shaft Bore Dia. (Equal Dia.) | Shaft Bore Center Distance | Width | Thickness | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Inner dimensions | Outer dimensions | ||||||||
| 5 | 6 | 9 | 12 | 16 | 19 | ||||
| Ø3 | 40 ~ 100 | 20 | ○ | ○ | ○ | - | - | - | 20 |
| Ø4 | |||||||||
| Ø5 | 50 ~ 100 | 25 | ○ | ○ | ○ | ○ | - | - | 25 |
| Ø6 | |||||||||
| Ø8 | 50 ~ 120 | 28 | - | - | ○ | ○ | ○ | ○ | 28 |
| Ø10 | |||||||||
| Ø12 | 60 ~ 120 | 32 | - | - | - | ○ | ○ | ○ | 32 |
| Ø13 | |||||||||
| Ø14 | |||||||||
| Ø15 | |||||||||
* Please see the product pages for detailed dimensions.
Accuracy Info
■Accuracy of Links
Shaft Bore DIA. Tolerance: H7
Hinge Bases - A, H Compact Type
| Product name | Hinge Bases/Standard/Miniature Type |
|---|---|
| Part number | HGHAM6-W6-H20 |
| Features | Hinge Bases with the width (A dim.) shortened. They can be used in limited spaces. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for using as swinging parts of the cylinder
Available sizes
■Hinge Bases - A, H Compact T-Shaped Type
| Material | Surface Treatment |
|---|---|
| EN 1.1191 Equiv. | Black Oxide |
| Electroless Nickel Plating |
■Sizes and Dimensions
| Shaft Bore Dia. | Shaft Bore Length | Shaft Bore Height H | Overall Length | Overall Height | Width |
|---|---|---|---|---|---|
| 1mm increments | |||||
| Ø3 | 3 ~ 6 | 11 ~ 20 | 22 | H + 4.5 | 9 |
| Ø4 | |||||
| Ø5 | 4 ~ 10 | 12 ~ 25 | 25 | H + 6 | 12 |
| Ø6 | 5 ~ 10 | ||||
| Ø8 | 6 ~ 15 | 16 ~ 30 | 32 | H + 8 | 16 |
| Ø10 | 8 ~ 15 | 16 ~ 35 | |||
| Ø12 | 18 ~ 35 | H + 9.5 | 19 | ||
| Ø13 | 12 ~ 18 | 20 ~ 35 | 38 | ||
| Ø14 | 23 ~ 35 | H + 12.5 | 25 | ||
| Ø15 | |||||
| Ø16 | |||||
| Ø20 | 15 ~ 25 | 27 ~ 40 | 50 | H + 15 | 30 |
| Ø25 | 20 ~ 25 | 28 ~ 45 | H + 16 | 32 | |
Accuracy Info
■Accuracy of Hinge Bases
Shaft Bore Dia. Tolerance: H7
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Application Overview
Purpose
- Purpose
- Feeding the workpiece after rotating 90°.
- Operation
- On the output side of the cylinder, the clamped workpiece is unclamped at the first return stroke after the swing arm tumbles hitting the stopper surface and comes to a halt. At the cylinder return side, the arm rises up in an unclamped condition, hits the stopper surface and comes to a halt. When the cylinder moves again toward the output side, the workpiece is clamped at the beginning of the stroke.
Target workpiece
- Shape: Small-size battery case
- Size: W22 x L45 x H10mm
- Weight: 0.03kg
Design Specifications
Operating Conditions or Design Requirements
- Grips the workpiece after receiving it.
- Rotation: 90°
- Work head drop: 100mm
Required Performance
- Locating accuracy: ±1mm
Selection Criteria for Main Components
- Cylinder
- Small-size, double-acting
- Tension spring
- Auxiliary part for initially performing the clamp motion/Retaining workpieces during revolution motion .
Spring constant k = 0.22N/mm
Spring tensile length l = 11.7mm
Workpiece retaining force = k x l = 2.57N
- Auxiliary part for initially performing the clamp motion/Retaining workpieces during revolution motion .
Design Evaluation
Verification of main components
- Verify the cylinder thrust and spring load from the load moment.
- Check the force to operate the arm.
- Conditional values: Workpiece mass m = 0.03kg
Gravitational acceleration = 9.8m/s²
Cylinder diameter = 16mm
Supply pressure = 0.5Mpa
Mechanical efficiency = 80%
Distance between the tension spring shaft and the rotary shaft at the chuck release: L1 = 10.5mm
Distance between the tension spring shaft and the rotary shaft after the workpiece is moved: L2 = 28.3mm
Distance between the tension spring shaft and the rotary shaft at the chuck release: L3 = 38.4mm
Distance between the cylinder shaft and the rotary shaft after the workpiece is moved: L4 = 17.3mm
Tension spring natural length L = 80mm
Initial tension of the tension spring: F1 = 3.73N
Length of the tension spring at the chuck release: L5 = 114mm
Length of the tension spring after revolution of the workpiece: L6 = 99mm
Spring constant k = 0.22N/mm
Tension of the tension spring at the chuck release: F2 = F1 + k x (L5 - L) = 3.73 + 0.22 x (114 - 80) = 11.2N
Tension of the tension spring at the chuck release: F3 = F1 + k x (L6 - L) = 3.73 + 0.22 x (99 - 80) = 7.9N
Cylinder thrust F4 = 101N
Cylinder thrust F5 = 75N
Moment ratio.
In chuck operation/arm revolution.
Moment generated by the cylinder thrust. From M1 = F4 x L3, M1 = 101 x 38.4 = 3879N･mm
Moment generated by the spring. From M2 = F2 x L1, M2 = 11.2 x 10.5 = 117.6N･mm
When the arm is pulled up after revolution of the workpiece.
Moment generated by the cylinder thrust. From M3 = F5 x L4, M3 = 75 x 17.3 = 1297.5N･mm
Moment generated by the spring. From M4 = F3 x L2, M4 = 7.9 x 28.3 = 223.6N･mm
From calculations shown above, we obtain M1 >> M2 and M3 >> M4, which shows that the arm drive operates without delay.
- Conditional values: Workpiece mass m = 0.03kg
Other Design Consideration
- Shape of the shoulder pad for locating the main revolution arm.
- Link shape at the chuck part that fixes the grip release angle and grip close angle.
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