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No.000115 Chuck Mechanism
73
73
Chuck mechanism capable of correcting positional displacement.
Relevant category
Compact Cylinders
| Product name | Compact Cylinders |
|---|---|
| Part number | MSCCN16-10 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Used to switch between chucking and retracting.
Available sizes
■Compact Cylinders
| Tube I.D. | External Size | Rod Tip Screw | Stroke St | Body Length (+ St shown below) Rod | Rod Tip Length | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Screw Type | DIA.-Pitch | ||||||||||||||||
| 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 75 | 100 | ||||||
| φ12 | □25 | Tapped | M3×0.5 | ○ | ○ | ○ | ○ | ○ | ○ | − | − | − | − | − | − | 22 | 3.5 |
| φ16 | □29 | M4×0.7 | ○ | ○ | ○ | ○ | ○ | ○ | − | − | − | − | − | − | |||
| φ20 | □36 | M5×0.8 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | − | − | 29.5 | 4.5 | |
| φ25 | □40 | M6×1.0 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | − | − | 32.5 | 5 | |
| φ32 | □45 | M8×1.25 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | − | − | 33 | 7 | |
| φ40 | □52 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | 39.5 | |||
| φ50 | □64 | M10×1.5 | − | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | 40.5 | 8 | |
| φ63 | □77 | − | − | − | − | − | ○ | − | − | − | ○ | ○ | ○ | 46 | |||
| φ12 | □25 | Threaded | M5×0.8 | − | ○ | − | ○ | − | ○ | − | − | − | − | − | − | 22 | 14 |
| φ16 | □29 | M6×1.0 | − | ○ | − | ○ | − | ○ | − | − | − | − | − | − | 15.5 | ||
| φ20 | □36 | M8×1.25 | − | ○ | − | − | − | ○ | − | − | − | ○ | − | − | 29.5 | 18.5 | |
| φ25 | □40 | M10×1.25 | − | ○ | − | − | − | ○ | − | − | − | ○ | − | − | 32.5 | 22.5 | |
| φ32 | □45 | M14×1.5 | − | ○ | − | − | − | ○ | − | − | − | ○ | − | − | 33 | 28.5 | |
| φ40 | □52 | − | ○ | − | − | − | ○ | − | − | − | ○ | − | ○ | 39.5 | |||
| φ50 | □64 | M18×1.5 | − | ○ | − | − | − | ○ | − | − | − | ○ | ○ | ○ | 40.5 | 33.5 | |
| φ63 | □77 | − | − | − | − | − | ○ | − | − | − | ○ | ○ | ○ | 46 | |||
* Sensors are sold separately.
Selection Steps
■Selection procedure of compact cylinders (See "Technical Information" shown below for details.).
1．Define various conditions of the load.
↓
2．Calculate the cylinder output. (in case of double-acting type).
↓
3．Determine the tube I.D.
↓
4．Determine the theoretical reference speed.
↓
5．Verify the cylinder's cushion mechanism.
↓
6．Verify the lateral load applicable to the cylinder.
Performance info.
■Load Information of Compact Cylinders.
Min. Operating Pressure: 0.1 MPa.
Max. Operating Pressure: 1.0 MPa.
Theoretical Output (N) ：
| Tube I.D. | Operating Direction | Operating Pressure (MPa) | |
|---|---|---|---|
| 0.4 | 0.5 | ||
| φ12 | Outstroke | 45 | 57 |
| Instroke | 34 | 42 | |
| φ16 | Outstroke | 80 | 101 |
| Instroke | 60 | 75 | |
| φ20 | Outstroke | 126 | 157 |
| Instroke | 94 | 118 | |
| φ25 | Outstroke | 196 | 245 |
| Instroke | 151 | 189 | |
| φ32 | Outstroke | 322 | 402 |
| Instroke | 241 | 302 | |
| φ40 | Outstroke | 503 | 628 |
| Instroke | 422 | 528 | |
| φ50 | Outstroke | 785 | 982 |
| Instroke | 660 | 825 | |
| φ63 | Outstroke | 1247 | 1559 |
| Instroke | 1121 | 1402 | |
Sensors for Cylinders
| Product name | Sensors - For Cylinders, Grippers |
|---|---|
| Part number | ME33L1 |
| Features | Sensors dedicated for Double Acting Cylinder |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Detect chuck position.
Available sizes
■Sensors - For Cylinders, Grippers
| Load Voltage | Load Current | Sensor Type | Line | Wire Exit | Lead wire Length |
|---|---|---|---|---|---|
| DC24V AC110V | DC24V 5〜40mA AC110V 5〜20mA | Contact Point | 2-Line | Rear | 1m ・ 3m |
| 28VDC or Less | 0.1〜40mA | No Contact | 3-Line | ||
| DC10〜28V | 5〜20mA | No Contact | 2-Line | ||
| 28VDC or Less | 0.1〜40mA | No Contact | 3-Line | Top | |
| DC10〜28V | 5〜20mA | No Contact | 2-Line |
* Please see the product pages for detailed specifications.
Performance info.
■Load Information of Sensors for Cylinders.
| Insulation Resistance | 100 MΩ or more with 500 VDC (between case and cable) |
|---|---|
| Withstanding Voltage | 1 min. with 1500 VAC (between case and cable) |
| Impact Resistance | 294m/s² |
| Vibration Resistance | Lateral Amplitude 1.5 mm, 10 - 55 Hz (one sweep / min, two hours in X, Y, and Z directions respectively) |
| Ambient Temperature | 0 - +60°C (Non-Freezing) |
| Protection | IP67 (IEC Standard), JIS0920 (Water Resistant Type) |
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Application Overview
Purpose
- Chuck workpieces while correcting fine displacement.
- Springs are used to generate the necessary holding force. The claws of the chuck are adjustable to account for positional displacement.
Points for use
- Low precision workpiece chucking.
Target workpiece
- Shape: resin pin.
size φ10 × 45mm.
weight: 0.1kg.
Design Specifications
Operating Conditions or Design Requirements
- Assumed workpiece displacement amount: ±1.5mm.
- Spring gripping force: 23.1 to 54.6N.
- Outer dimensions: W86 x D117.5 x H58mm.
Selection Criteria for Main Components
- Springs that produce a gripping force of 2kg during chucking are selected.
Design Evaluation
Verification of main components
- Spring gripping force is verified below.
- Confirmation of gripping force of chucks.
- Conditional value: spring constant k = 10.5N/mm.
Spring free length: L0 = 15mm.
Minimum spring length caused by maximum displacement amount 1.5mm: L1 = 9.8mm.
Spring length when displacement amount is 0mm: L2 = 11.4mm.
Maximum spring length caused by maximum displacement amount 1.5 mm: L3 = 12.8mm.
- Maximum spring deflection amount caused by maximum displacement amount 1.5mm: X1 = L0 - L1 = 5.2mm.
Spring deflection amount when displacement amount is 0mm: X2 = 3.6mm.
Minimum spring deflection amount caused by maximum displacement amount 1.5mm: X3 = L0 - L3 = 2.2mm.
- Maximum chuck gripping force: F1 = k x X1 = 10.5 x 5.2 = 54.6N.
Chuck gripping force when there is no workpiece displacement: F2 = k x X2 = 10.5 x 3.6 = 37.8N.
Minimum chuck gripping force: F3 = k x X3 = 10.5 x 2.2 = 23.1N.
- Conditional value: spring constant k = 10.5N/mm.
Other Design Consideration
- The cam shape applies load to the spring during chucking and completely opens the claws from the work piece during un-chucking.
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