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No.000179 Centering mechanism utilizing floating joint

Correction of angular misalignment generated by the suction cup

Related Category

Floating Joint

Product name Floating Joints -Extra Short Threaded Stud Mount/Threaded
Part number FJCMXS6-1.0
Features Floating joint is used to compensate any misalignment between cylinder and moving object.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Suitable for angular misalignments

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Available sizes

■Floating Joint - Extra Short

Body/Cover Joints Spring Washer
Material Surface Treatment Material Surface Treatment Hardness Material Material Surface Treatment Hardness
EN 1.1191 Equiv. Black Oxide EN 1.1191 Equiv. Black Oxide 35 - 45
HRC
EN 1.4301 Equiv. EN 1.4301 Equiv. Nitriding Treatment 600HV -
EN 1.4301 Equiv. - EN 1.4125 Equiv. -

■Sizes

Cylinder Mounting Side Output Allowable Lateral
Misalignment
Allowable Angular
Misalignment
Body
Thickness
Body
Hex Size
Overall Length
Thread Dia. - Pitch Thread Length Thread Dia. - Pitch Thread Length
M5 - 0.8 6 M8 - 1.25 8.5 0.5 14 24 33
M6 - 1.0
M8 - 1.25 8.5 M10 - 1.5 10 15.5 27 39.5
M10 - 1.5 10 M14 - 2.0 11 19.5 30 47

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Spring Plungers

Product name Spring Plungers/Stainless Steel
Part number PJHK5-5
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Spring load and overall size

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Available sizes

■Spring Plungers - Stainless Steel

Nose
Material
Load type Body Nose Spring Operating Temperature
Material Material Hardness Material
Stainless Steel Ultra Light Load EN 1.4301 Equiv. EN 1.4125 Equiv. 55HRC - EN 1.4568 Equiv. -30 - 260°C
Light Load
Heavy Load
Extra Heavy Load
Plastic Ultra Light Load Polyacetal - -30 - 80°C
Light Load
Heavy Load
Extra Heavy Load

■Sizes and Dimensions

Screw Dia.
(Coarse)
Nose Body length
Diameter Stroke
M3 Ø1 1.5 15
3 15
M4 Ø1.6 2 15
4 24
M5 Ø2 3 20
5 27
M6 Ø2.5 3 25
5 30
M8 Ø3.1 3 25
5 27
M10 Ø3.8 5 30
10 43
M12 Ø5.5 5 30
10 43
15 51
M16 Ø8 10 57
15 57
20 65

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Performance info.

■Spring Load (N) of Spring Plunger (Stainless Steel)

Load type
Screw Dia.
(Coarse)
Nose Ultra Light Load Light Load Heavy Load Extra Heavy Load
Diameter Stroke min. max. min. max. min. max. min. max.
M3 Ø1 1.5 0.12 0.4 0.4 1.3 0.8 2.94 1.1 3.42
3 0.12 0.4 0.2 1.3 0.6 2.93 0.8 3.41
M4 Ø1.6 2 0.27 0.65 0.9 2 2 8.8 6.1 13.8
4 0.18 0.65 0.6 2.1 1.9 8.75 5.8 13.6
M5 Ø2 3 0.4 3 1.4 9.7 2.7 16.3 6.8 22
5 0.35 3 1.1 10.3 1 17.1 5.7 21.5
M6 Ø2.5 3 1.8 3.05 6 9.8 8 26.4 15.8 35.6
5 1.5 3.05 3.4 9.86 4.4 26.6 12.9 34.4
M8 Ø3.1 3 1.9 3.15 6 9.9 14.7 27 21.9 36.3
5 1.4 3.15 4 9.83 6.7 26.6 14.7 34.5
M10 Ø3.8 5 1.6 4.6 5.7 14.7 8.2 45.7 24.5 58.6
10 1.6 4.6 4.4 14.7 6.2 45.1 19.8 58.7
M12 Ø5.5 5 1.7 4.7 5.8 14.7 18.2 49 34.9 63.6
10 1.6 4.7 5 14.7 8.2 49.1 25.5 63.6
15 1.8 4.7 6.9 14.7 7.5 48.9 20.1 63.7
M16 Ø8 10 2.8 10.8 9.2 34.2 18.9 68.5 38.7 88.4
15 2.6 10.8 8.6 34.4 14.4 68.6 33.9 88.1
20 2 11 7.1 34.4 4.2 68.6 25.4 88.1

* Min. load is the initial load, max. is when the Nose is depressed fully.

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Suction Cup Fittings

Product name Suction Cups/with Fitting/Spring Type/Shape K
Part number MVPKN15
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Suitable for lifting a workpiece from uneven surfaces

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Available sizes

■Suction cup with fitting (With pad) Fixed type, Top tube connection: One touch type (Shape K)

Body Material Surface Treatment Pad Shape Pad Material
Brass Electroless
Nickel Plating
Standard Nitrile Rubber
Conductive Silicon Rubber
Fluorinerubber
Deep type Nitrile Rubber
Fluorinerubber

■Sizes and Dimensions

Pad Shape Suction pad Connection Dia. Overall Length Mounting thread DIA. x Pitch
O.D. Length
Standard Ø2 4 Ø4 28.3 M6 x 0.75
Ø3
Ø4
Ø6 7 Ø6 32.6 M10 x 1.0
Ø8 5.5 31.1
Ø10 8 34.1 M12 x 1.0
Ø15 9 35.1
Ø20 10 37.5 M14 x 1.0
Deep type Ø20 11 38.7
Ø25 12 39.7
Ø30 14 41.7
Ø40 17.5 45.2

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IDEA NOTE Centering of the suction cup by using floating joint

Floating joint allows for lateral and angular misalignment. Spring plunger are used for level restoration and centering.

  • 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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  • * 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

  • Purpose
    • Correction of angular misalignment of workpiece.
  • Operation
    • Descend the arm so that the suction cups attach to a workpiece. The suction cup surface will follow the tilt of the workpiece because of the allowable angular misalignment tolerance of the floating joint. Once the workpiece is suctioned, lift the workpiece so that the angular misalignment is restored. Angular misalignment is restored by repulsive force of the spring plungers.

Target workpiece

  • Shape: Flat plates such as circuit boards, etc.
  • Size: W200 x L200 x H0.8mm
  • Weight: 500g

Design Specifications

Operating Conditions or Design Requirements

  • Arm upper surface - Suction cup surface: 57mm
  • External size: W341 x D142 x H58mm
  • Allowable lateral misalignment: 0.5, allowable angular misalignment: 4°;

Required Performance

  • Locating accuracy: ±1mm

Selection Criteria for Main Components

  • Floating joint: Shall have lateral misalignment tolerance and angular misalignment tolerance.
  • Suction cup: Shall not exceed the allowable weight of the floating joint.

Design Evaluation

Verification of main components

  • Verify the suction force is sufficient to hold workpiece.
  • Work retention weight
    • Conditional values: maximum tension using force of the floating joint: F1 = 500N
      Suction holder pad diameter: D = 1.5cm
      Vacuum level: P = -60kPa
      Number of suction holders: n = 4 [pieces], Horizontal sling safety factor: f = 4, gravitational acceleration: g = 9.8N/m²
      Pad area: C = D2 x (π / 4) = 1.77cm²
      Suction force per suction holder: W = { (C x P) / 101} x 10.13 x (1 / f) Thus, W = 2.66N
      Suction force with 4 suction holders: W' = 4 x W = 10.6N
    • F1 >> W" Thus, sufficiently safe for the floating joint.
    • Maximum weight of the workpiece = W' /g = 1.08kg Thus, safe against workpiece weight of 500g.

Other Design Consideration

  • The overall unit height can be reduced by using a floating joint.
  • Roughness of cone-shaped plunger support may hinder level restoration and centering. Make sure the finish is Ra 1.6 or better.

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 Floating Joints FJCMXS6-1.0 1
2 Spring Plungers PJHK5-5 4
3 Suction Cups - with Fittings MVPKN15 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).
  • You will find information on price and shipping days, in the Online Quote and Order System.
  • 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.

    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.

    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.

    Back to top

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