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- inCAD Library Home
- > No.000202 Depth Gauge
No.000202 Depth Gauge
Dedicated depth gauge tailored to specific work piece shapes.
Relevant category
Dial Gage Holders
| Product name | Dial Gage Holders |
|---|---|
| Part number | DGHL1 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Used for mounting dial gauge
Available sizes
■Dial Gage Holders
| Material | Surface Treatment | |
|---|---|---|
| Knob | Collet | |
| SUP6(Spring Steel) | Chrome Plating | Sandblasted Finish |
■Dimensions of Dial Holder
Hex Socket Screws
| Product name | Hex Socket Screws - Dog Point |
|---|---|
| Part number | CBBG5-12 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Low cost and easily available as screws for upper/lower limit setting
Available sizes
■Hex Socket Screws - Dog Point
| Material | Hardness | Surface Treatment |
|---|---|---|
| 4137 Alloy Steel | 45HRC- | Black Oxide |
| 38-43HRC | ||
| 304 Stainless Steel | - | - |
■Sizes and Dimensions
(mm)
| Thread Dia. | Thread Length | Nose Dia. | Nose Length | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | |||
| 4 | ○ | ○ | ○ | ○ | ○ | 3 | 3 | ||||
| 5 | ○ | ○ | ○ | ○ | ○ | 4 | 4 | ||||
| 6 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||||
| 8 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | 6 | 5 | ||
| 10 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | 8 | 6 | ||
Accuracy Info
■Hex Socket Screws - Dog Point accuracy
(mm)
| Thread Dia. | Nose Dia. | Nose Dia. Tolerance | Nose Length Tolerance | Thread Length Tolerance |
|---|---|---|---|---|
| 4 | 3 | -0.1 -0.2 | +0.2 0 | -0.3 -0.6 |
| 5 | 4 | |||
| 6 | ||||
| 8 | 6 | -0.1 -0.3 | ||
| 10 | 8 |
IDEA NOTE Dedicated depth gauge tailored according to workpiece shape
The zero point of the gauge is adjusted by using a high-accuracy master having the same shape as the workpiece hole. By using this gauge, the depth of the workpiece hole is measured at a high accuracy.
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- 1. CAD Data
- The Data is prepared for assisting the Company's users in the CAD design process by providing dimensions and other Product information. In order to provide the best speed and stability working within this site, the Product drawings were simplified to reduce the size of the Data. For instance, some of the Products are shown without the oil groove shape, screws or spring shape. Also, please be aware that the tolerance, surface roughness and/or chamfer of the Data may vary from the actual Products.
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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
- Place the gauge in the master and measure the work piece hole dimensions to adjust the dial and find the zero point.
- Using a structure that allows stroking up and down from the center value by means of a spring, the upper and lower run-outs of the tolerance are measured.
Points for use
- The work piece is manually set and removed from the testing hole.
- Because the gauge needs to have a high accuracy the specialized manufacturing is expensive.
Target workpiece
- Workpiece: aluminum die cast housing
- Material：Aluminum Casting Alloy 383.0
- W150mm x D300mm x H70mm
- Mass：5.8kg
Design Specifications
Operating Conditions or Design Requirements
- Pin stroke：4mm
- W40xD37xH217mm(when gauge only is used)
- W40xD41xH227mm(when master is included)
Required Performance
- Accuracy of zero point adjustment: ±0.01mm or less
- Gauge push force 5N
Selection Criteria for Main Components
- Round coil spring
- A compression spring is selected so that the stroke starts when the gauge makes contact with the bottom surface of the hole.
Design Evaluation
Verification of main components
- A spring suitable for gauge push force is selected.
- Compression spring load
- Calculation formula: reaction force F = kx
- Gauge push load：F=5N
- Assumed deflection when inserted into workpiece (minimum)：x=10mm
- From k = F/x = 5/10 = 0.5,
spring constant: k = 0.5 N/mm is selected.
Other Design Consideration
- A measurement structure that allows stroking up and down from the center value by means of a spring, the upper and lower run-outs of the tolerance are recorded.
- To remove foreign matter adhered to the bottom surface of the depth gauge, shallow grooves in a cross shape are added on the top face of the master.
- Workability is enhanced by configuring the hole in the upper master in two steps.
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