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No.000046 Fixture for Testing Electrical Properties
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Multiple workpiece fixtures to increase inspection efficiency.
Relevant category
Contact probe
| Product name | Contact Probes - NP90SF, NP90 Series |
|---|---|
| Part number | NP90-A |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
For checking electrical conductivity of workpiece. Contact tip shape depends on the test subject.
Risk info.
Wire breakage, deformation
Available sizes
■Contact probe (Min. mounting pitch 3.5mm)
| Part name | Material | Surface treatment |
|---|---|---|
| Plunger | C1730B | Nickel base rhodium plated |
| Barrel | Brass | Nickel base gold plated |
| Spring | Carbon Steel | Gold plating |
| Ball | 52100 Bearing Steel | Gold plating |
■Tip shape
| Tip shape | Min. mounting pitch | Full stroke | Initial spring pressure | |
|---|---|---|---|---|
| A | 4.5 | 6.4 | 10gf、40ｇｆ、146gf | |
| B | 3.5 | |||
| C | ||||
| D | 4.5 | |||
| E | 3.5 | |||
| G | ||||
| AS | ||||
Performance info.
■Contact probe (Min. mounting pitch 3.5mm) load info.
| Spring pressure | Allowable current | Resistance | Replacement cycle | |
|---|---|---|---|---|
| Initial | 2/3 stroke | |||
| 10gf | 50gf | 1.5A | 80mΩ | 300,000 cycles |
| 40gf | 150gf | |||
| 146gf | 250gf | |||
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CAD Download (Unit Assembly)
CAD Download: File Format
CAD Data Limitations
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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
- Fixture for testing electrical properties using contact probes.
- Workpieces are placed onto table fixture by robot, and then slide into position beneath the probes for inspection.
Target workpiece
- Small PC board.
- Size: W22 x D26 x t1 mm
Design Specifications
Operating Conditions or Design Requirements
- External dims.: W150 x D300 x H140mm
Required Performance
- Positioning accuracy: ±0.3mm
Selection Criteria for Main Components
- Pneumatic linear guide.
- In comparison with the typical cylinder with guides, Pneumatic linear guide has more compact design (cross section two times smaller).
Design Evaluation
Other Design Consideration
- Select contact probe that is appropriate for the material of the workpiece being inspected.
- When using pneumatic linear guides, place the side that requires higher accuracy as the stopping side.
Explore Similar Application Examples
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