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- inCAD Library Home
- > No.000062 Sheet Metal Bending Fixture
No.000062 Sheet Metal Bending Fixture
16
16
Bending fixture with spring-back phenomenon in consideration.
Relevant category
Toggle Clamps
| Product name | Toggle Clamps - Horizontal Handle, Horizontal or Vertical Base Push-Pull Type |
|---|---|
| Part number | MC03-S1 |
| Features | Small clamps for light-duty operations with the horizontally-movable handles which are effective if there is an obstacle above. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Economical and suitable for obtaining predetermined load
Available sizes
■Toggle Clamp - Side Push-pull, Horizontal (Flange Base)
| Material | 1018 Carbon Steel | 304 Stainless Steel | ||
|---|---|---|---|---|
| Surface Treatment | Main body: Trivalent chromate/ Shaft: Nickel Plating | - | ||
| Stroke | 17 | 16 | 17 | |
| Tightening force(N) | 450 | 500 | 450 | |
| Weight(g) | 50 | 65 | 50 | |
| Open-Close Angle of Handle | 190° | 180° | 190° | |
| Main Body Width | 27 | 28 | 27 | |
| Overall Height (Fully Pushed Position) | 43.5 | 17 | 43.5 | |
| Overall Length (Fully Pushed Position) | 73.9 | 81.5 | 73.9 | |
| Handle Operating Direction | Fore and Aft | Right Turn | Left Turn | |
| Accessory | Rubber Tipped Bolt (NBR, Shore A70) | Stainless Steel Bolt | ||
* Please see the product pages for shape details and dimensions.
Long knurled head screws
| Product name | Long Knurled Head Screws - Configurable Thread Length |
|---|---|
| Part number | LRLBF3-A20-L6-D5 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for using as a thin knob with appropriate length
Available sizes
■Long Knurled Head Screws
| Material | Surface treatment |
|---|---|
| 4137 Alloy Steel | Electroless Nickel Plating |
| 303 Stainless Steel | − |
■Sizes and Dimensions
| Under Head Screw Shaft | Knurled Shaft | ||
|---|---|---|---|
| Screw Dia. (Coarse) | Length (1 mm increments) | O.D (1 mm increments) | Length (1 mm increments) |
| M3 | 6〜40 | φ5〜φ10 | 10〜60 |
| M4 | 6〜40 | φ5〜φ10 | |
| M5 | 10〜50 | φ10〜φ25 | |
| M6 | 10〜50 | φ10〜φ25 | |
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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 dimensions of the MISUMI parts in the Data, which can be specifed at 1mm intervals, can be edited under historical data.
- 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.
-
- * 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
- Manual bending fixture.
- A sheet metal workpiece is clamped down by a toggle clamp on one side, then bent horizontally by another toggle clamp on the opposite side. There is an additional vertical mechanism that applies a second bend vertically.
Points for use
- Manual sheet metal bending operation.
Target workpiece
- Sheet metal parts
Dims.: W10 x D27 x t0.5
Design Specifications
Operating Conditions or Design Requirements
- External dims.: W207 x D42 x H100
- Toggle clamp stroke: 14mm
- Spring-back countermeasure slide stroke (Vertical direction): 17.1mm
Required Performance
Selection Criteria for Main Components
- Toggle clamp
- Side push type is selected since a horizontal motion is needed.
- Clamping force on the sheet metal workpiece is needed therefore another toggle clamp is added.
- Clamping force on the bending side must exceed the required force to bend the workpiece.
Design Evaluation
Verification of main components
- Verify that the selected toggle clamp can withstand the required bending force.
- Bending force
- Count: C = 2.0
- Bend length: B = 5mm
- Thickness: t = 0.4mm
- Tensile strength: Ts = 270N/mm² (Material: Low Carbon Steel)
- Formula: Bending force P = (C / 3) × B × t × Ts= (2 / 3) × 5 × 0.4 × 270 = 360 N
- Toggle clamp clamping force: 450N > Bending force: 360N
Other Design Consideration
- It may be necessary to bend more than 90 degrees due to spring-back phenomenon, apply force accordingly to material thickness and properties.
- A spring plunger was mounted to the vertical mechanism to prevent the vertical motion.
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