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- > No.000284 Simultaneous Two-Hand Pushbutton Switch Mechanism
No.000284 Simultaneous Two-Hand Pushbutton Switch Mechanism
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Starts with the simultaneous pressing of switches.
Relevant category
Service Unit
| Product name | Service Unit-Regulator & Filter |
|---|---|
| Part number | MSFRAF10A |
| Features | Service Units (FR) available for controlling air filters and pressure. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Mount the regulator and the filter to the unit considering the movement by unit configuration.
Available sizes
■Service Unit-Regulator & Filter
| No. | Name | Material |
|---|---|---|
| ① | Regulators with Filter | MSFR |
| ② | Air Filters | MSAF 0.3μm |
| ③ | Bracket | Aluminum Casting Alloy 383.0 |
| ④ | Attachment | Aluminum Casting Alloy 383.0 |
| ⑤ | Hex Socket Head Cap Screw | 4137 Alloy Steel |
| ⑥ | #1 Gasket | NBR |
| ⑦ | #2 Gasket | NBR |
■Sizes and Dimensions
| Nominal | Connection Screw Opening | Nomi. Filtration Rating (μm) | Operating Pressure Range MPa | Pressure Setting Range MPa | Pressure Resistance MPa | Ambient Temperature Range (℃) | Actuation Medium |
|---|---|---|---|---|---|---|---|
| 8A | Rc1/4 | 5+0.3 | 0.05～1.0 | 0.05～0.85 | 1.5 | 5～60 | Air |
| 10A | Rc3/8 |
Manual Switching Valves
| Product name | Switch Valves - Manually Operated, Panel Mount, 2-Port / 3-Port |
|---|---|
| Part number | NCHB4-10A |
| Features | Manual Switching Valves - Panel Mount - which are small-sized but have large capacity. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Select the push button type and set the configuration to allow operation if both buttons are pressed for workers safety.
Available sizes
■Switch Valves - Manually Operated, Panel Mount, 2-Port / 3-Port
| Part No. | Name | Material |
|---|---|---|
| ① | Body | ACD10 |
| ② | End Cover | Plastic |
| ③ | Pilot Body | 6061 Aluminum Alloy |
| ④ | Phillips Flat Head Screws | 1018 Carbon Steel |
| ⑤ | Bracket | Low Carbon Steel |
| ⑥ | Rotary / Push Button | - |
■Sizes and Dimensions
| Nominal | Direction | Number of Ports | Pipe Connection Bore Dia. | |
|---|---|---|---|---|
| IN・OUT | EX | |||
| 8A | 2 | 2 | Rc1/4 | - |
| 3 | 3 | Rc1/4 | ||
| 4 | 5 | Rc1/8 | ||
| 10A | Rc3/8 | Rc3/8 | ||
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CAD Download (Unit Assembly)
CAD Download: File Format
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Assembly data shows the assembly drawings in the concept design phase. The sole purpose of the data is to explain the structure and functionality of the assembly and is not considered nor to be used as a final design.
You will need to edit the Data so that it meets your specific design conditions. -
Unit assembly Data consists of some sub-assemblies.
It is configured so that each sub-assembly unit can be used as it is or edited. - The Data for fabricated parts is based on easy-to-edit dimensions and shapes in sketches and histories.
- The Data including the third-part components are made by the Company.
* The part in the frame is a sub-assembly unit.
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Your access to the CAD data that MISUMI Corporation (hereinafter referred to as the Company) posts on this site (including 3D CAD data, intermediate 3D CAD data and 2D CAD data; hereinafter referred to as the Data) are of products manufactured and/or sold by the Company (hereinafter referred to as the Products) assumes that you have read and accepted these terms and conditions which govern your use of the Data. If you do not agree to these terms and conditions, you must stop using this website and the Data. You must not use the Data for any unlawful purpose or in any manner inconsistent with these terms and conditions.
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- * Unit assembly Data consists of some sub-assemblies.
It is configured so that each sub-assembly unit can be used as it is or edited.
Application Overview
Purpose
- A semi-automatic mechanism that descends the cylinders as the right and left switches are simultaneously pressed and press-fits workpieces together.
- Pressing either one of the right and left switches does not move the cylinders.
- A mechanism in which the cylinders stop and ascend when the right or left hand is released while the cylinders are descending.
Points for use
- The worker would need to press the right and left switches simultaneously to start the machine.
- Prevents the pinching and entanglement of workers.
Target workpiece
- Whole workpiece
- Material: resin case (press-fit process)
- Cap
- Dimensions: φ30 x 6.5mm
- Mass: approx. 3g
- Case
- Dimensions: φ30 x 26.5mm
- Mass: approx. 9g
Design Specifications
Operating Conditions or Design Requirements
- Operational Specifications
- Maximum cylinder setting stroke: 95mm
- Outer dimensions
- W480 x D300 x H353mm
Required Performance
- Cylinder thrust
- Cylinder thrust required for press-fitting workpiece: 50N or above
Selection Criteria for Main Components
- Air cylinder
- A cylinder with a guide is selected for space-saving purposes.
Design Evaluation
Verification of main components
- The cylinder thrust is verified to see whether the required press-fitting force is satisfied.
- Cylinder capacity
- From setting air pressure: 0.2MPa and cylinder inner diameter: 25mm, cylinder thrust on pushing side: F0 = 63N (from catalog)
- Required press-fitting force: F1 = 50N * The press-fitting force is checked using measurement instruments before design.
- Safety factor: F0/F1 = 63/50 = 1.26 * Air pressure is adjusted to 0.2MPa and can be set up to 0.5MPa.
- When air pressure is 0.5MPa, cylinder thrust on pushing side: F2 = 157N (from catalog)
- Safety factor: F2/F1 = 157/50 = 3.14
* The force that breaks the workpiece is 250N or higher.
Other Design Consideration
- An area sensor is not necessary due to the installation of cover. Access path is limited to the worker side.
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