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No.000078 Soldering fixture
Good IDEA!
17

Workpiece holding using magnets.

Related Category

Magnet

Magnet
Product name Magnets/Cylindrical
Part number HXN10-2
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Performance info.

Selection criteria

Handy and economical as an item to hold a workpiece

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Available sizes

■Magnets (Round)

Material Surface Treatment Heat Resistant Temperature
High Force Neodymium Magnet Nickel Plating 60°C
Neodymium Magnet 80°C
Heat-resistant Neodymium Magnets 150°C
Cobalt Magnet 200°C

■Sizes and Dimensions

O.D. (mm) Length (mm)
8 2
3
5
6
8
10
10 2
3
5
8
10
12 2
3
5
8
10

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Performance info.

■Speeds / Loads (Load Info.) of Magnets

I.D. (mm) Length (mm) Attraction Force
(N) 		Surface Magnetic Flux Density
Gauss (G)
High Force Neodymium Neodymium
Heat-resistant Neodymium 		Cobalt High Force Neodymium Neodymium
Heat-resistant Neodymium 		Cobalt
8 2 - 6.66 4.41 - 2400 - 2600 2000 - 2200
3 14.01 10.78 7.45 3500 - 3800 3200 - 3400 2700 - 2900
5 23.31 17.93 11.96 4700 - 5000 4200 - 4400 3500 - 3700
6 26.76 20.59 - 5100 - 5400 4700 - 4900 -
8 29.94 23.03 15.39 5400 - 5700 4600 - 4800 3900 - 4100
10 31.23 24.02 - 5600 - 5900 5000 - 5200 -
10 2 - 7.84 5.29 - 2000 - 2200 1700 - 1900
3 18.34 14.11 9.41 3100 - 3400 2800 - 3000 2400 - 2600
5 32.23 24.79 16.56 4300 - 4600 3800 - 4000 3200 - 3400
8 - 34.3 23.03 - 4700 - 4900 4000 - 4200
10 49.43 38.02 25.48 5500 - 5800 4900 - 5100 4100 - 4300
12 2 - 9.02 5.98 - 1600 - 1800 1300 - 1500
3 - 16.46 11.07 - 2500 - 2700 2100 - 2300
5 - 31.16 20.87 - 3600 - 3800 3000 - 3200
8 - 46.55 31.07 - 4500 - 4700 3800 - 4000
10 - 52.72 35.28 - 4800 - 5000 4000 - 4200

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Small Hex Posts

Small Hex Posts
Product name Small Hex Posts- One End Threaded
Part number SLCB5.5-20
Features Suitable for Limited Spaces or Space-Saving required Places.
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes

Selection criteria

Handy as the feet of the reversed fixture or as the handle to open a lid.

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Available sizes

■Small Hex Posts (Both Ends Tapped)

Material Surface Treatment
EN 1.0038 Equiv. or
EN 1.0762 Equiv. 		Black Oxide
Electroless Nickel Plating
EN 1.4305 Equiv. -

■Sizes and Dimensions

Type Opposite Side Size
(mm) 		Length (1mm Increments)
EN 1.0038 Equiv. or EN 1.0762 Equiv. Black Oxide 5.5 5 - 12
13 - 20
EN 1.0038 Equiv. or EN 1.0762 Equiv. Electroless Nickel Plating 5.5 5 - 12
13 - 20
EN 1.4305 Equiv. 4 5 - 10
15, 20
5 5 - 10
15, 20
5.5 5 - 12
13 - 20

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IDEA NOTE Best locating method for the cover with circular arc motion.

Cover is located with magnetic attraction and slotted holes/pins.

IDEA NOTE Posts are provided as feet for improved workability.

Hex posts are mounted on the cover to be the feet when the cover is reversed.

  • 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.
    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).
    5. Policy of Third Parties
    You may be required to separately agree to third party's policies if you use third party software to create or browse the Data or use a third party’s CAD data. In this case, the Company does not assume any responsibility for defects of such CAD data or the software of the third party or violation of their rights. Understand them before use.

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      You will need to edit the Data so that it meets your specific design conditions.
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  • * Unit assembly CAD data consists of some sub-assemblies.
       Each sub-assembly unit can be used as it is or can be edited.

Application Overview

Purpose

  • A fixture for soldering PC board.

Points for use

  • Operating procedure
    • The PC board is held down by the fixtures cover.
    • User can perform soldering work on the first side of the PC board.
    • After soldering the first side, lift up the cover, then remove and refit the PC board to its opposite side.
    • Fold down the fixture cover again and begin soldering work on the 2nd side of the PC board.

Target workpiece

  • PC board
  • Dims.: W70 x D45 x t1 (Also compatible with PCB W40 x D80 x t1)

Design Specifications

Operating Conditions or Design Requirements

  • External dims.: W120 x D120 x H30
  • Magnet; 7.84N

Required accuracy ･ Load

  • Cover retaining force: 5.9N

Selection Criteria for Main Components

  • Magnet
    • Magnetic hold down force should be sufficient to keep the PCB in place during soldering, and yet minimal enough for easy lifting of the cover when soldering is complete.
    • As an example, select magnets with attraction force of approximately 5.9N.

Design Evaluation

Verification of main components

  • Consider adding handle or hex posts for lifting of cover and overall handling of the fixture.
    • When reversing, load applicable on the magnets: Cover + Hex posts + PCB = 45g + 10g + 5g = 60g = 0.59N
    • Distance between the magnets and magnetic material: 2mm (Magnetic material: EN 1.7220 Equiv., screw head)
    • Assumed decay: 0.1
    • Attraction to prevent cover opening: 0.59 / 0.1 = 5.9N
    • Magnetic attraction can vary based on distance, temperature, material and size of magnetic body. Selection is to be made upon actual measurements.

Other Design Consideration

  • Since soldering is applied on reversed sides, hex posts are provided as feet on the cover side. The posts are also used as handles for cover open/close.
  • Locating pins are used to locate the cover.
  • Add notches as needed to avoid wire harness, etc.
  • The hex socket screw heads are used as attracted member since the main body and the cover are made of non-magnetically permeable material.

Explore Similar Application Examples

Page - / -

Part List

No. Part Name Sample picture MISUMI Part Number
For Price and Days to ship click on Part No. 		Quantity
1 Aluminum Hinges -Short Type- HHPSNC6 2
2 Magnets HXN10-2 2
3 Hex Posts SLCB5.5-20 4
4 Locating Pins SLPSQTAH6-L10 2
5 Socket Head Cap Screws CBM3-6 4
6 Flat Head Cap Screws SFB5-8 8
7 thread Inserts HLTS3-4.5 4
  • The part list above contains only MISUMI parts.
    The list of parts and machined products of other manufacturers than MISUMI can also be downloaded by part list download (CSV).
  • 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.
    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).
    5. Policy of Third Parties
    You may be required to separately agree to third party's policies if you use third party software to create or browse the Data or use a third party’s CAD data. In this case, the Company does not assume any responsibility for defects of such CAD data or the software of the third party or violation of their rights. Understand them before use.

    CAD Data Download (Unit Assembly)

    CAD Data Download: File Format
    生成

    Thank you for downloading the data.

    Click the Good IDEA! button when this application example is helpful.


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

    Good IDEA!

    Cautions on the CAD data

    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. The CAD data unit assembly consists of sub-assemblies.
      Each sub-assembly unit can be used as it is or can be 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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