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No.000283 Set-up Change Using Electromagnets
Good IDEA!
23

Using electromagnets automatically locks the fixture after changing the fixture set-up.

Relevant category

Electromagnets

Electromagnets
Product name Electromagnets - Round, Horizontal Cord
Part number MGE30
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Performance info.

Available sizes

Select the electromagnet to secure fixtures after setup

Available sizes

■Electromagnets - Round, Horizontal Cord

Material Surface Treatment
Main Body 1018 Carbon Steel Electroless Nickel Plating
Resin Part Epoxy Resin -

■Sizes and Dimensions

O.D. Thickness Mounting Thread x Pitch
20 28 4×0.7
30 40 6×1.0
40 40
50 50 8×1.25
60 60 10×1.5

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Performance info.

■Speeds / Loads (load info.) of the Electromagnet

O.D. Max. Attraction Force
N(kgf)
20 28(2.8)
30 180(18)
40 300(30)
50 600(60)
60 1200(120)

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Cam Follower

Cam Follower
Product name Cam Followers - Crown Type, No Seal
Part number CFUR6-16
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Accuracy Info | Performance info.

Selection criteria

Mount it to the area only where the load applies in order to support external force to the unit. Compatible with rotary motions as well

Available sizes

■Cam Followers - Crown Type, No Seal

Usage Main Body Nut
Material Seal Material Surface Treatment
Not Provided Provided
General 52100 Bearing Steel ○ ○ 1045 Carbon Steel Black Oxide
440C Stainless Steel ○ ○ 304 Stainless Steel -
Low Dust Generation - ○

■Sizes and Dimensions

Stud Dia. Thread Dia. x Pitch Outer Ring Dia. Outer Ring Width Overall Length
φ5 M5×0.8 φ13 9 23
φ6 M6×1.0 φ16 11 28
φ8 M8x1.25 φ19 11 32
φ10 M10x1.25 φ22 12 36
φ26

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Accuracy Info

■Accuracy of Cam Followers

Stud Dia. Stud dia. Tolerance
(h7) 		Outer Ring Width Tolerance
φ5 0
-0.012 		0
-0.12
φ6
φ8 0
-0.015
φ10

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Performance info.

Cam Follower Load Rating and Rotational Speed

Stud Dia.
-Outer Ring Dia. 		Basic Dynamic Load Rating
C(kN) 		Basic Static Load Rating
Cor(kN) 		Max. Allowable Load
(kN) 		Track Load Capacity
(kN) 		Max. Rotational Speed (rpm)
With Seal No Seal
φ3−φ10 1.47 1.18 0.36 1.37 32900 47000
φ4−φ12 2.06 2.05 0.78 1.76 25900 37000
φ5−φ13 3.14 2.77 1.42 2.25 20300 29000
φ6−φ16 3.59 3.58 2.11 3.43 17500 25000
φ8−φ19 4.17 4.65 4.73 4.02 14000 20000
φ10−φ22 5.33 6.78 5.81 4.7 11900 17000
φ10−φ26 5.49
φ12−φ30 7.87 9.79 9.37 7.06 9800 14000
φ12−φ32 7.45
φ16−φ35 12 18.3 17.3 11.2 7000 10000
φ18−φ40 14.7 25.2 26.1 14.4 5950 8500
φ20−φ52 20.7 34.8 32.1 23.2 4900 7000

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IDEA NOTE Using electromagnet to secure position of the fixture

Setup changing is easy to conduct because no bolt tightening is needed.

IDEA NOTE Reduces load to the rotary table

Because of the pin press-fit process for workpieces, the load is applied to the rotary table. Therefore, a cam follower is installed at the lower part of the press-fit location to reduce the load on the rotary table to a minimum. However, if the cam follower contacts the rotary plate during rotation, load in the direction of thrust is applied to the cam follower. A very small gap is created to cope with this issue.

  • TERMS AND CONDITIONS FOR USE OF CAD DATA
    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.
    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.
    2. Disclaimer on Data
    While the Company has carefully prepared the Data, accuracy of the Data is not guaranteed and is subject to the variances as described above. The Company may also modify, add or delete the Data at any time without prior notice. The Company assumes no liability for any direct, indirect, consequential or special damages that you may claim resulted from your use of the Data or any changes to or deletions of the Data regardless of the reason. The Company provides no warranty as to the quality, accuracy, functionality, safety or reliability of the combination of Products and parts. Example applications and combinations of the Products are provided for illustrative purposes only.
    3. Copyright
    Copyrights to the content and the Data belong to the Company or the manufacturers of the Products. The said copyright is protected by the Copyright Act and international treaties. The use (including duplication, modification, uploading, posting, transmission, distribution, licensing, sales and publishing) of the Data except for the purpose to use the Data described above without prior approval of the Company is not allowed. The Data cannot be used for any purposes (including sales promotion) except for designing your machine. If you violate this provision or the laws or regulations, the Company may prohibit you from the use of the Data, the Company’s site and/or take legal action. So long as you comply with these terms and conditions, the Company grants to you a non-exclusive, non-transferable, revocable license to access and use the Data for the sole purpose of assisting you in designing machines that incorporate products.
    In case that the CAD data is found to have been to be used for any purpose other than mentioned above or against the related laws, MISUMI may take legal actions, including the one for blocking the involved user from using CAD data and from accessing to the MISUMI site.
    4. Disclaimer of Warranty
    ANY AND ALL CONTENT APPEARING ON THIS WEB SITE IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. THIS WEB SITE, ITS CONTENT AND ITS LINKS ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS AND ARE USED ONLY AT YOUR SOLE RISK, TO THE FULLEST EXTENT PERMISSIBLE BY LAW. THE COMPANY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, OF ANY KIND, REGARDING THIS WEB SITE (INCLUDING ITS CONTENT, HARDWARE, SOFTWARE AND LINKS), INCLUDING AS TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, TITLE, NON INFRINGEMENT, RESULTS, ACCURACY, COMPLETENESS, ACCESSIBILITY, COMPATIBILITY, SECURITY AND FREEDOM FROM COMPUTER VIRUS. THE COMPANY WILL NOT BE LIABLE FOR ANY DAMAGES OR LOSSES, INCLUDING DIRECT, INDIRECT, CONSEQUENTIAL, SPECIAL, INCIDENTAL OR PUNITIVE DAMAGES AND/OR LOST PROFITS, IN CONNECTION WITH USE OF THE INTERNET, THIS WEB SITE, ITS CONTENT OR ITS LINKS
    Further, the Company will not be liable to you for any failure or delay by the Company to provide access to the Data or any of its obligations under these terms and conditions where such failure or delay is the direct or indirect result of any circumstances beyond the Company's reasonable control (and the Company's obligations will be suspended for the duration of such circumstances).

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Application Overview

Purpose

  • Without changing the whole fixture setup attached to rotating actuator only part of fixture holding workpieces are changed. Changing parts of fixture are held in place using electromagnets.

Points for use

  • Toolless set up design.

Target workpiece

  • Plastic parts
  • Dimensions: W70mm x D25mm x H15mm
  • Weight: About 25g

Design Specifications

Operating Conditions or Design Requirements

  • Dimensions
    • W450mm x D329mm x H210mm

Required Performance

  • Fixture retention force
    • Retention force should be equal or greater than the fixture weight (640g) and it should keep fixture in the same horizontal plane during rotation (equal or greater than centrifugal force).

Selection Criteria for Main Components

  • Pull force of electromagnet.

Design Evaluation

Verification of main components

  • Verify the electromagnet pull force is large that fixture weight and centrifugal force.
    • Conditional values: Fixture weight m: 0.64kg, radius of rotation (with the center at the fixture) r: 0.175m, rotation time t: 1s, rotation angle θ: 180° = 3.14rad, g = 9.8m/s²
    • ω = θ/ｔ = 3.14/1 = 3.14 rad/s
    • Centrifugal force: F＝ m × r × ω² = 0.64　x 0.175 x (3.14)² = 1.1N
      Electromagnetic holder attachment force: about 100N, from catalogue graph value
      ⇒F = 1.1 < 100N…Safety factor 90, m × g = 0.64 × 9.8 = 6.27N < 100N…Safety factor 15.9

      * The electromagnet pull force is largely influenced by surface accuracies of attracted object and gap between magnet and object surface. Therefore, the safety factor is set to a higher value.

Other Design Consideration

  • Make sure that wiring of electromagnets are not tangled with rotary actuator.
  • The fixture is made out of aluminum and resin for weight reduction. Metal plates are added to the fixture and position over electromagnets. Surface of metal plates should be machined to improve surface roughness and minimize gaps between plate and magnet.
  • Metal plate position should be placed as close as possible under center of the gravity of fixture.

Explore Similar Application Examples

Page - / -

Part List

No. Part Name Sample Picture MISUMI Part Number
(click the Part Number below for details) 		Quantity
1 Electromagnet MGE30 2
2 Linear Bushings LHMRD6 4
3 Hinge Pins GCLBRM6-45 4
4 Compression Springs WR8-15 4
5 Metal Washers WSSM12-6-1.5 4
6 Metal Washers WSSM12-6-1 4
7 Locating Pins SJPBB6-10 2
8 Locating Pins SJPDB6-10 2
9 Cam Followers CFUR6-16 1
10 One-Touch Couplings USYELN6-1 2
11 Dowel Pins MSC8-15 2
12 Socket Head Cap Screws-with Washer SCBS6-12 2
13 Socket Head Cap Screws-with Washer SCBS6-15 6
14 Socket Head Cap Screws-with Washer SCBS6-20 4
15 Flat Head Cap Screws SFB3-6 4
16 Flat Head Cap Screws SFB3-8 4
  • The part list above only contains MISUMI parts.
    Part list download (CSV) includes MISUMI and third party components used in this example.
  • TERMS AND CONDITIONS FOR USE OF CAD DATA
    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.
    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.
    2. Disclaimer on Data
    While the Company has carefully prepared the Data, accuracy of the Data is not guaranteed and is subject to the variances as described above. The Company may also modify, add or delete the Data at any time without prior notice. The Company assumes no liability for any direct, indirect, consequential or special damages that you may claim resulted from your use of the Data or any changes to or deletions of the Data regardless of the reason. The Company provides no warranty as to the quality, accuracy, functionality, safety or reliability of the combination of Products and parts. Example applications and combinations of the Products are provided for illustrative purposes only.
    3. Copyright
    Copyrights to the content and the Data belong to the Company or the manufacturers of the Products. The said copyright is protected by the Copyright Act and international treaties. The use (including duplication, modification, uploading, posting, transmission, distribution, licensing, sales and publishing) of the Data except for the purpose to use the Data described above without prior approval of the Company is not allowed. The Data cannot be used for any purposes (including sales promotion) except for designing your machine. If you violate this provision or the laws or regulations, the Company may prohibit you from the use of the Data, the Company’s site and/or take legal action. So long as you comply with these terms and conditions, the Company grants to you a non-exclusive, non-transferable, revocable license to access and use the Data for the sole purpose of assisting you in designing machines that incorporate products.
    In case that the CAD data is found to have been to be used for any purpose other than mentioned above or against the related laws, MISUMI may take legal actions, including the one for blocking the involved user from using CAD data and from accessing to the MISUMI site.
    4. Disclaimer of Warranty
    ANY AND ALL CONTENT APPEARING ON THIS WEB SITE IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. THIS WEB SITE, ITS CONTENT AND ITS LINKS ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS AND ARE USED ONLY AT YOUR SOLE RISK, TO THE FULLEST EXTENT PERMISSIBLE BY LAW. THE COMPANY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, OF ANY KIND, REGARDING THIS WEB SITE (INCLUDING ITS CONTENT, HARDWARE, SOFTWARE AND LINKS), INCLUDING AS TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, TITLE, NON INFRINGEMENT, RESULTS, ACCURACY, COMPLETENESS, ACCESSIBILITY, COMPATIBILITY, SECURITY AND FREEDOM FROM COMPUTER VIRUS. THE COMPANY WILL NOT BE LIABLE FOR ANY DAMAGES OR LOSSES, INCLUDING DIRECT, INDIRECT, CONSEQUENTIAL, SPECIAL, INCIDENTAL OR PUNITIVE DAMAGES AND/OR LOST PROFITS, IN CONNECTION WITH USE OF THE INTERNET, THIS WEB SITE, ITS CONTENT OR ITS LINKS
    Further, the Company will not be liable to you for any failure or delay by the Company to provide access to the Data or any of its obligations under these terms and conditions where such failure or delay is the direct or indirect result of any circumstances beyond the Company's reasonable control (and the Company's obligations will be suspended for the duration of such circumstances).

    CAD Download (Unit Assembly)

    CAD Download: File Format
    生成

    Thank you for downloading the data.

    Click the Good IDEA! button when you find interesting design tips.


    This data is utilized in order to list more useful application examples in the future.

    Good IDEA!

    CAD Data Limitations

    1. 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.
    2. 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.

      3. * The part in the frame is a sub-assembly unit.

    3. The Data for fabricated parts is based on easy-to-edit dimensions and shapes in sketches and histories.
    4. The Data including the third-part components are made by the Company.

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