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- inCAD Library Home
- > No.000308 Sheet Forming Machine
No.000308 Sheet Forming Machine
24
24
Simplified bending/forming machine
Relevant category
Shaft Supports
| Product name | Shaft Supports - Flanged Mount with Thick Sleeve |
|---|---|
| Part number | STHR20 |
| Features | Tapped Mounting Hole Type recommended when mounting the supports to thin plates |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Select the long sleeve to support a long shaft.
Available sizes
■Shaft Supports - Flanged Mount with Thick Sleeve
| Material | Surface Treatment |
|---|---|
| 1045 Carbon Steel | Black Oxide |
| Electroless Nickel Plating | |
| 304 Stainless Steel | - |
| 6061 Aluminum Alloy | Clear Anodize |
■Sizes and Dimensions
| Shaft Bore Dia. | Overall Length | Guide O.D. | Flange O.D. |
|---|---|---|---|
| 3 | 10 | 8 | 22 |
| 4 | 10 | 9 | 24 |
| 5 | 12 | 10 | 25 |
| 6 | 15 | 12 | 28 |
| 8 | 16 | 12 | 28 |
| 10 | 20 | 14 | 30 |
| 12 | 24 | 16 | 36 |
| 13 | 18 | 38 | |
| 15 | 30 | 20 | 40 |
| 16 | 32 | 22 | 42 |
| 18 | 28 | 50 | |
| 20 | 28 | 50 | |
| 25 | 38 | 33 | 55 |
| 30 | 38 | 66 | |
| 35 | 50 | 45 | 80 |
| 40 | 60 | 90 | |
| 50 | 70 | 100 |
Accuracy Info
■Accuracy of Shaft Supports
| Shaft Bore Dia. | Tolerance (H7) |
|---|---|
| 3 | +0.010 0 |
| 4 | +0.012 0 |
| 5 | |
| 6 | |
| 8 | +0.015 0 |
| 10 | |
| 12 | +0.018 0 |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 18 | |
| 20 | +0.021 0 |
| 25 | |
| 30 | |
| 35 | +0.025 0 |
| 40 | |
| 50 |
Perpendicularity of the Mounting Surface and the Shaft Bore: 0.02
Stopper Bolts with Urethane
| Product name | Stopper Bolts With Urethane- Standard, Straight Shape |
|---|---|
| Part number | SUST8-50 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Selected to avoid shocks when stopping the rotation tip of the rotary actuator.
Available sizes
■Stopper Bolts With Urethane- Standard, Straight Shape
| Stopper | Hex Screw | Accessory (Hex Nut) | ||||
|---|---|---|---|---|---|---|
| Material | Hardness | Material | Strength Class | Surface Treatment | Material | Surface Treatment |
| Urethane (Black) | Shore A90 | 4137 Alloy Steel | 10.9 | Trivalent Chromate | 1018 Carbon Steel | Trivalent Chromate |
| 304 Stainless Steel | - | - | 304 Stainless Steel | - | ||
| Low Repulsion Urethane (Gray) | Shore A70 | 4137 Alloy Steel | 10.9 | Bright Chromate Plating | 1018 Carbon Steel | Trivalent Chromate |
| Polyacetal (White) | - | 4137 Alloy Steel | 10.9 | Trivalent Chromate | 1018 Carbon Steel | Trivalent Chromate |
| 304 Stainless Steel | - | - | 304 Stainless Steel | - | ||
| Silicon (Light Gray) | Shore A70 | 4137 Alloy Steel | 10.9 | Trivalent Chromate | 1018 Carbon Steel | Trivalent Chromate |
| 304 Stainless Steel | - | - | 304 Stainless Steel | - | ||
■Sizes and Dimensions
| Screw Dia. (Coarse) | Threaded Section Length (Length under Head) |
|---|---|
| M3 | 15 - 40 (Increments of 5) |
| M4 | 15 - 40 (Increments of 5) |
| M5 | 15 - 50 (Increments of 5) |
| M6 | 20 - 50 (Increments of 5), 60 |
| M8 | 20 - 50 (Increments of 5), 60 |
| M10 | 20 - 50 (Increments of 5), 60, 70 |
| M12 | 30 - 70 (Increments of 10) |
Support Units
| Product name | Support Units - Fixed Side, Round |
|---|---|
| Part number | BRW12-SET |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Use for ball screws on the fixed side / support side set to shorten the design time.
Available sizes
■Support Units - Fixed Side, Round
| Material | Surface Treatment | |
|---|---|---|
| Bearing Housing Cover | Collar Bearing Nut | Bearing Housing |
| Cover | ||
| Collar | ||
| Bearing Nut | ||
| 1045 Carbon Steel | 1018 Carbon Steel | Black Oxide |
| Electroless Nickel Plating | ||
| Low Temp. Black Plating | ||
■Sizes and Dimensions
| Bearing I.D. | Fixed Side Length | Flange Dimension |
|---|---|---|
| 6 | 20 | □28 |
| 8 | 23 | □35 |
| 10 | 29 | □42 |
| 12 | □44 | |
| 15 | 32 | □52 |
| 20 | 52 | □68 |
| 25 | 57 | □79 |
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- 1. CAD Data
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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
- To roll the end portion of a resin sheet into a U shape.
Points for use
- After the operator sets a resin sheet on the machining table, pressing the start button (1) clamps the resin sheet, (2) rotates the roll bar by 180° (bending the resin sheet into a U shape), (3) starts leftward travel of the heater at 120mm/2.3 sec, (4) activates the heater ON timer, (5) moves the heater to the right end of the resin sheet, (6) performs heating travel on the resin sheet at 260mm/4.9 sec, (7) makes the heater travel at 20mm/0.4 sec, (8) stops the heater at the left end (stroke end), (9) starts rightward travel of the heater, (10) performs heating travel on the resin sheet, (11) turns the heater OFF (by timer operation), and (12) stops the heater at the right end. Optimum conditions such as heating and air blow performed in combination, heater stop during rightward travel, and air blow travel should be determined through trial and error.
Target workpiece
- Shape: resin film
- Size: 260 x 45 x t0.7mm
Design Specifications
Operating Conditions or Design Requirements
- Sheet clamp stroke: 100mm
- Sheet rotation angle: 180°
- Heater: 1kw
- Heater travel unit stroke: 474mm
- Travel time: 7.5sec (variable speed)
- Outer dimensions: W987 x D455 x H514mm
Required Performance
- Positioning accuracy: ±0.2mm
Selection Criteria for Main Components
- Selection of heater
- Heating temperature of 250°±30° adjustment by room-temperature compressed air blow (through trials and errors)
The hot air blow ON/OFF timing is determined by the timer activated during travel.
Heating time 15sec (in reciprocating operation)
- Heating temperature of 250°±30° adjustment by room-temperature compressed air blow (through trials and errors)
Design Evaluation
Verification of main components
- A motor with a torque that can withstand the load is selected.
- Load of table unit: M = 7kg
Lead of lead screw: L = 0.004m
Drive section efficiency: η = 0.26
Friction coefficient of guide: μ = 0.15
Motor startup torque Tm = 0.28N·m
Rotation speed range of speed controller motor: n = 90 to 1400rpm
Motor rotation speed: N = 60 x V/L
= 60 x 53/4
≒ 800rpm
Load: F = μ x M x 9.8
= 0.15 x 7 x 9.8
= 10.3N
Load torque: T = LF/2πη
= 10.3 x 0.004/2 x 3.14 x 0.26
= 0.026N・m
Therefore, T < TM
- Load of table unit: M = 7kg
Other Design Consideration
- A cylinder with a guide is used for sheet clamping to reduce cost.
- For sheet rotation, a stopper is provided on the rotary actuator to make the bending amount adjustable.
- The heater is fixed with screw clamps for facilitating replacement, and as its traveling accuracy and stopping accuracy specifications are rough, lead screws and a small-size speed controller motor are used.
- The temperature of hot air is 450°C at the heater air blow port. To adjust the temperature, it is also equipped with an air blow nozzle.
- The heating time should be determined through trial and error. The heating time is around 15 seconds (reciprocation).
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