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No.000218 Fine Adjustment Mechanism Using Flat Springs

Slide Adjustment Utilizing Flat Spring

Adjusting Stopper Screws

Product name Adjusting Stopper Screws- Hexagon Socket, L Configurable, Fine Thread
Part number ANBS6-20
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Screw with radius at the end is suitable for holding the flat spring.

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Available sizes

■Adjusting Stopper Screws- Hexagon Socket, L Configurable, Fine Thread

Adjustment Screw Material Hardness Surface Treatment
Fine Thread 1045 Carbon Steel 45-50HRC Electroless Nickel Plating
Trivalent Chromate
4137 Alloy Steel 50HRC-
304 Stainless Steel
420 Stainless Steel 45HRC-
Coarse Thread 1045 Carbon Steel 45-50HRC Electroless Nickel Plating
Trivalent Chromate
4137 Alloy Steel 50HRC-
304 Stainless Steel
420 Stainless Steel 45HRC-

■Sizes and Dimensions

Screw Shaft Dia. (mm) Thread Length
10 15 20 25 30 35 40 45 50 60 70 80 90 100 120
3 - - - - - - - -
4 - - - - -
5 - - - - -
6 - - - - - -
8 - - - - - - -
10 - - - - - - -
12 - - - - - - -
16 - - - - - -
20 - - - - - - -

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Strut Clamp

Product name Strut Clamps - Parallel Configuration, Different Diameter, Selectable Pitch
Part number KKQT20-15-40
Features For parallel shaft configuration.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Effective for connecting two parallel shafts.

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Available sizes

■Strut Clamps - Parallel Configuration, Different Diameter, Selectable Pitch

Material Surface Treatment Accessory
1018 Carbon Steel Black Oxide Hex Socket Head Cap Screw

■Sizes and Dimensions

Large Hole Dia. Small Hole Dia. Hole Pitch
15 20 25 30 40 50 75 100 150
10 8 - - - - - -
12 10 - - - - -
15 - - - - -
20 15 - - - - -
25 - - - - -
30 20 - - - - -
35 25 - - - - -

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Accuracy Info

■Accuracy of Strut Clamp

Large Hole Dia. Large Hole Dia. Tolerance
(H7)
Small Hole Dia. Small Hole Dia. Tolerance
(H7)
10 +0.015
       0
8 +0.015
       0
12 +0.018
       0
10
15
20 +0.021
       0
15 +0.018
       0
25
30 20 +0.021
       0
35 +0.025
       0
25

Parallelism of Holes:0.05

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IDEA NOTE Fine motion of the slide shaft.

This mechanism allows for fine movement by deflecting the flat springs mounted on both ends of the slide shaft.

  • 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
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    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.

    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.

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

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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

  • Purpose
    • To perform fine adjustment during product inspection without changing overall dimensions and layout of the fixture.
  • Operation
    • By pressing the flat springs, which are installed at both ends of the slide shaft, from the outside using adjusting bolts, the slide shaft moves. Due to this movement, the optical axis of the inspection camera that is mounted onto strut clamp is adjusted.
      After that, lock the position of the slide shaft by applying the adjusting screws to the flat springs from opposite direction.

Target workpiece

  • Shape: mounted circuit board
  • Size: W80 x D80 x H12 mm
  • Weight: 40 g

Design Specifications

Operating Conditions or Design Requirements

  • Maximum fine adjustment amount: 1.6 mm
  • Outer dimensions: W100 x D242 x H53 mm

Selection Criteria for Main Components

  • Select adjustment screws that can be used when the flat spring deflection is 1.6mm.

Design Evaluation

Verification of main components

  • Verify that length of the adjusting bolts are sufficient to support all camera positions.
  • Selection of stopper bolts
    • Conditional value: arc length of flat spring (304 Stainless Steel) L1 = 49.5 mm, spring deflection limit σ = 275N/mm², Young's modulus of flat spring E = 186000N/mm², thickness of flat spring H = 1.0mm, arc length from flat spring fixing side to adjusting screw L2 = 24.75 mm, length from flat spring to plate for adjusting screw L3 = 11.1 mm, overall length of adjusting screw L4 = 30 mm, height of nut supplied with adjusting screw L5 = 4 mm
    • If we assume that the arc-shaped flat spring is a straight line, the deflection σ2 when it is handled as a spring with one end fixed,
      σ2=σ×L2²×(3×L1/L2-1)/(3×E×H)=275×24.75²×(3×49.5/24.75-1)/(3×186000×1.0)=1.51mm

      ⇒The length of adjusting screw that can perform adjustment even when the flat spring deflects for 1.51mm is
      range satisfying 1.51 + L3 < L4 - L5
      1.51+11.1<30-5.4
      ⇒30mm, hence, selected adjusting stopper screw is acceptable for this application.

Other Design Consideration

  • When a flat spring is being adjusted using an adjusting screw on one end, the adjusting screw on the other end should not be in contact with the flat spring.

Explore Similar Application Examples

Page - / -

Part List

No. Part Name Sample Picture MISUMI Part Number
(click the Part Number below for details)
Quantity
1 Locating Bolts SSTCA6-50 2
2 Screw Stopper ANBS6-20 2
3 Oil Free Bushings MDZF20-12 2
4 Strut Clamp KLSTNR20 1
5 Linear Shaft SFJ15-136 1
6 Shaft Collars SSCCJ15-5 2
7 Oil Free Bushings MDZB15-10 2
8 Strut Clamp KKQT20-15-40 2
  • 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.

    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.

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

    Page top

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