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No.000064 Destructive Testing Fixture
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Destructive load and displacement can be measured in one test
Relevant category
Manually operated unit
| Product name | Manually Operated Units -Handwheel Direction Configurable- |
|---|---|
| Part number | KUEF20-A-U-320 |
| Features | Allows to select the orientation of the handle freely, and thus, is suitable for use in limited spaces. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Standard, off-the-shelf manual positioning unit
Risk info.
May come with unnecessary functions/features
Available sizes
■Manually operated unit (Handwheel direction configurable)
| Frame | Table | Lead screw | Nut for lead screw | |
|---|---|---|---|---|
| Material | 6063-T5 Aluminum Alloy | 6063 Aluminum Alloy | 1045 Carbon Steel | Brass |
| Surface treatment | Clear anodize | Clear anodize | Black oxide | - |
| Nut bracket | Side plate | Bevel gear | Cover | |
|---|---|---|---|---|
| Material | 5052 Carbon Steel | 6063 Aluminum Alloy | 1045 Carbon Steel | 304 Stainless Steel |
| Surface treatment | Clear anodize | Clear anodize | - | - |
■Sizes and Dimensions
| Handwheel type | Handwheel direction | Frame length(mm) | Lead | Effective stroke(mm) |
|---|---|---|---|---|
| Plastic handwheel Plastic handwheel Folding type 5-spoke type | Up Down Left Right | 170 | 4 | 53 |
| 220 | 103 | |||
| 320 | 203 | |||
| 370 | 253 | |||
| 420 | 303 | |||
| 470 | 353 |
Accuracy Info
■Accuracy of manually operated unit
| Parallelism(mm) | Backlash(mm) |
|---|---|
| 0.15 | 0.5 |
Performance info.
■Speeds・Loads (load info.) of manually operated unit
| Load capacity(N) | Moment capacity (N·m) | |||
|---|---|---|---|---|
| Horizontal | Vertical | Pitching | Yawing | Rolling |
| 490 | 98 | 14 | 14 | 27 |
| Required torque(N・m) | Required rotational force (N) | ||
|---|---|---|---|
| Horizontal | Vertical | Horizontal | Vertical |
| 0.059 | 0.420 | 2.261 | 16.164 |
Stopper bolt with urethane bumper
| Product name | Stopper Bolts With Bumpers- Standard, Straight Shape |
|---|---|
| Part number | SUST10-70 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Stopper with soft tip that will not damage structural components
Available sizes
■Stopper bolt with urethane bumper, Shouldered, Standard Type
| Stopper | Bolt | Accessory(Hex nut)) | ||||
|---|---|---|---|---|---|---|
| Material | Hardness | Material | Strength classification | Surface treatment | Material | Surface treatment |
| Urethane(Black) | Shore A90 | 4137 Alloy Steel | 10.9 | Bright chromate plating | 1018 Carbon Steel | Trivalent Chromate |
| 304 Stainless Steel | － | － | 302HQ Stainless Steel | － | ||
| Low rebound urethane (Gray) | Shore A70 | 4137 Alloy Steel | 10.9 | Bright chromate plating | 1018 Carbon Steel | Trivalent Chromate |
| Polyacetal(White) | ― | 4137 Alloy Steel | 10.9 | Bright chromate plating | 1018 Carbon Steel | Trivalent Chromate |
| 304 Stainless Steel | － | － | 302HQ Stainless Steel | － | ||
| Silicon(Lt. Gray) | Shore A70 | 4137 Alloy Steel | 10.9 | Bright chromate plating | 1018 Carbon Steel | Trivalent Chromate |
| 304 Stainless Steel | － | － | 302HQ Stainless Steel | － | ||
■Sizes and Dimensions
| Screw DIA. M(Coarse) | Length(mm) |
|---|---|
| M3 | 15－40(5Increment) |
| M4 | 15－40(5Increment) |
| M5 | 15－50(5Increment) |
| M6 | 20－50(5Increment)、60 |
| M8 | 20－50(5Increment)、60 |
| M10 | 20－50(5Increment)、60、70 |
| M12 | 30－70(10Increment) |
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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
- Measure loads and displacements during tensile destructive testing of workpieces.
Points for use
- Handwheel manually operated mechanism.
Target workpiece
- Molded plastic item
External dims.: W40 x D34 x H20 mm
Design Specifications
Operating Conditions or Design Requirements
- External dimensions: W418 x D241 x H150 mm
- Manually operated unit effective stroke: 203mm
- Push/pull gauge max. load: 100N
- Digital scale measurement range: 200mm
Required Performance
- Digital scale repeatability: 0.01mm
- Manually operated unit allowable moment: 14N·m
Selection Criteria for Main Components
- Push/pull gauge
- Select type and size type that can withstand the destructive testing loads (Expansion and contraction of the gauge itself is very little thus negligible)
- Digital scale
- A scale compatible with stroke of the manually operated unit is selected.
- Manually operated unit
- Considering 100N max. load of push/pull operation, a unit that can withstand the allowable moment load is selected.
(A clamp lever included with the unit is not used for the testing, thus it remains in released position)
- Considering 100N max. load of push/pull operation, a unit that can withstand the allowable moment load is selected.
Design Evaluation
Verification of main components
- Select unit that can withstand the moment load from max. push/pull force applied during testing.
- Manually operated unit
- Determining the load moment on linear guide
- When MA ≦ 17.6 Nm
- Satisfies the specification
- MA = F x I
- F = 100N
- (Push/pull gauge max. load)
- l = 0.073m
- MA = 100 × 0.073 = 7.3 ≦ 17.6 Nm
Other Design Consideration
- In order to make load and displacement measurements with the handwheel easily viewable, a manually operated unit with an upward facing handwheel is selected.
- The gauge plate position is adjusted with a stop pin in order to prevent push force to be applied to the workpiece.
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