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No.000162 Grip and Rotate Feed Mechanism
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Grip and feed motion with a single cylinder
Relevant category
Spring Anchors
| 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
| Material | Surface Treatment | Accessory |
|---|---|---|
| 1045 Carbon Steel | Black Oxide | Nut one pc (JIS Class 1) SWCH Equivalent |
| 304 Stainless Steel | − | Nut one pc (JIS Class 1) 304 Stainless Steel |
■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 | |||||
| φ4 | ○ | ○ | ○ | ○ | - | - | - | - | 8.5 | Ｍ4 | φ1.5 | 1 |
| φ5 | ○ | ○ | ○ | ○ | ○ | - | - | - | 9 | Ｍ5 | φ2 | |
| φ6 | - | ○ | ○ | ○ | ○ | ○ | - | - | 10 | Ｍ6 | ||
| φ8 | - | - | ○ | ○ | ○ | ○ | ○ | ○ | 12 | Ｍ8 | φ3 | 1.5 |
| φ10 | - | - | - | ○ | ○ | ○ | ○ | ○ | 15 | Ｍ10 | φ4 | 2 |
| φ12 | - | - | - | - | ○ | ○ | ○ | ○ | 17 | Ｍ12 | φ5 | 2.5 |
Links
| 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 - Both Ends Female Notch
| Material | 1018 Carbon Steel |
|---|
■Sizes and Dimensions
| Shaft Bore Dia. (Equal Dia.) | Shaft Bore Center Distance | Width | Thickness | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Inner dimensions | Outer dimensions | ||||||||
| 5 | 6 | 9 | 12 | 16 | 19 | ||||
| φ3 | 40〜100 | 20 | ○ | ○ | ○ | - | - | - | 20 |
| φ4 | |||||||||
| φ5 | 50〜100 | 25 | ○ | ○ | ○ | ○ | - | - | 25 |
| φ6 | |||||||||
| φ8 | 50〜120 | 28 | - | - | ○ | ○ | ○ | ○ | 28 |
| φ10 | |||||||||
| φ12 | 60〜120 | 32 | - | - | - | ○ | ○ | ○ | 32 |
| φ13 | |||||||||
| φ14 | |||||||||
| φ15 | |||||||||
* Please see the product pages for detailed dimensions.
Accuracy Info
■Accuracy of Links
Shaft Bore DIA. Tolerance: H7
Hinge Bases
| 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 - Standard / Miniature Type
| Material | Surface Treatment |
|---|---|
| 1045 Carbon Steel | Black Oxide |
| Electroless Nickel Plating |
■Sizes and Dimensions
| Shaft Bore Dia. | Shaft Bore Length | Shaft Bore Height H | Overall Length | Overall Height | Width |
|---|---|---|---|---|---|
| 1 mm increments | |||||
| φ3 | 3〜6 | 11〜20 | 22 | H＋4.5 | 9 |
| φ4 | |||||
| φ5 | 4〜10 | 12〜25 | 25 | H＋6 | 12 |
| φ6 | 5〜10 | ||||
| φ8 | 6〜15 | 16〜30 | 32 | H＋8 | 16 |
| φ10 | 8〜15 | 16〜35 | |||
| φ12 | 18〜35 | H＋9.5 | 19 | ||
| φ13 | 12〜18 | 20〜35 | 38 | ||
| φ14 | 23〜35 | H＋12.5 | 25 | ||
| φ15 | |||||
| φ16 | |||||
| φ20 | 15〜25 | 27〜40 | 50 | H＋15 | 30 |
| φ25 | 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: W 22 x L 45 x H 10 mm
- Weight: 0.03 kg
Design Specifications
Operating Conditions or Design Requirements
- Grips the workpiece after receiving it.
- Rotation: 90°
- Work head drop: 100 mm
Required Performance
- Locating accuracy: ± 1 mm
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 = 0.22 N/mm
Spring tensile length l = 11.7 mm
Workpiece retaining force = k x l = 2.57 N
- 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 = 0.03 kg
Gravitational acceleration = 9.8 m/s²
Cylinder diameter = 16 mm
Supply pressure = 0.5 Mpa
Mechanical efficiency = 80%
Distance between the tension spring shaft and the rotary shaft at the chuck release: L1 = 10.5 mm
Distance between the tension spring shaft and the rotary shaft after the workpiece is moved: L2 = 28.3 mm
Distance between the tension spring shaft and the rotary shaft at the chuck release: L3 = 38.4 mm
Distance between the cylinder shaft and the rotary shaft after the workpiece is moved: L4 = 17.3 mm
Tension spring natural length L = 80 mm
Initial tension of the tension spring: F1 = 3.73 N
Length of the tension spring at the chuck release: L5 = 114 mm
Length of the tension spring after revolution of the workpiece: L6 = 99 mm
Spring constant k = 0.22 N/mm
Tension of the tension spring at the chuck release: F2 ＝ F1+ k x (L5-L) ＝ 3.73 + 0.22 x (114 - 80) ＝ 11.2 N
Tension of the tension spring at the chuck release: F3 ＝ F1+ k x (L6-L) ＝ 3.73 + 0.22 x (99 - 80) ＝ 7.9 N
Cylinder thrust F4 = 101 N
Cylinder thrust F5 = 75 N
Moment ratio.
In chuck operation/arm revolution.
Moment generated by the cylinder thrust. From M1 = F4 x L3, M1 = 101x 38.4 ＝ 3879 N・mm
Moment generated by the spring. From M2 = F2 x L1, M2 ＝ 11.2 x 10.5 ＝ 117.6 N・mm
When the arm is pulled up after revolution of the workpiece.
Moment generated by the cylinder thrust. From M3＝F5×L4, M3 ＝ 75 x 17.3 ＝ 1297.5 N・mm
Moment generated by the spring. From M4 ＝ F3 x L2, M4 ＝ 7.9 x 28.3 ＝ 223.6 N・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 = 0.03 kg
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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