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No.000148 Intermittent Rotation Mechanism

Cylinder-driven index table

Related Category

Cantilever Shafts

Product name Cantilever Shafts/Pilot/Standard/Threaded/w Retaining Ring Groove
Part number FXCA8-8-F7-G5
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Effective because the stepped pins are available with low price and short lead time

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Available sizes

■Cantilever Shafts (Piloted Thread with Retaining Ring Groove)

Type Material Surface Treatment
Thread Length Fixed

Screw Length Selectable
EN 1.1191 Equiv. Black Oxide
Electroless Nickel Plating
EN 1.4301 Equiv. -
EN 1.7220 Equiv. Black Oxide

■Sizes

Pin Dia.
(mm)
(1mm Increments) M(Coarse)
Y F G N
3 2 - 30 3 - 50 3 - 8 3 - 6 M3
4 4 - 8 M4
5 5 - 10 M5
6 2 - 60 5 - 100 5 - 10 6 - 12 M6
8 8 - 16 M8
10 10 - 20 M10
12 10 - 150 5 - 15 12 - 24 M12
13
15
16
17 5 - 20
18
20 4 - 75 20 - 40 M20
M16
22 M20
M16
25 M20
M16
30 M20
M16

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Accuracy Info

■Accuracy of Cantilever Shafts

Perpendicularity: 0.02

Pin Dia.
(mm)
Tolerance g6
(mm)
3 - 0.002
- 0.008
4 - 0.004
- 0.012
5
6
8 - 0.005
- 0.014
10
12 - 0.006
- 0.017
13
15
16
17
18
20 - 0.007
- 0.020
22
25
30

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Extra Thin Resin Washer

Product name Extra Thin Resin Washers/Abrasion Resistance/Thickness
Part number SWSPS16-8-1.0
Features Excellent
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

This is required to prevent poor rotation caused by the load along thrust direction at the ratchet operation time.

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Available sizes

■Extra Thin Resin Washer (Abrasion Resistant Type)

Material: Polyslider

■Sizes and Dimensions

O.D. Inner Dia. (Selectable) Thickness
8 3 4 5 - - - - - - - 0.13
0.25
0.5
1.0
10 - 4 5 6 - - - - - -
12 - 4 5 6 8 - - - - -
14 - - 5 6 8 10 - - - -
15 - - 5 6 8 10 12 - - -
16 - - - 6 8 10 12 - - -
20 - - - 6 8 10 12 15 16 - 0.25
0.5
25 - - - 6 8 10 12 15 16 20

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Accuracy Info

■Thickness Tolerance of Extra Thin Resin Washer (Abrasion Resistant Type)

Thickness 0.13 0.25 0.5 1.0
Tolerance ±0.013 ±0.025 ±0.05 ±0.1

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Performance info.

■Characteristic Data of Extra Thin Resin Washer (Abrasion Resistant Type)

Item Value
Tensile Strength (Mpa) 98
Elongation (%) 60
Friction Coefficient (µ) 0.16 ~ 0.4
Insulation Resistance (kV/mm) 45

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Knuckle Joints

Product name Knuckle Joints/Tapped/Configurable
Part number FNTB6-1.0-D6-B6-U15
Features Convex and Concave types
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Effective as an oscillating part for a cylinder & link mechanism

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Available sizes

■Knuckle Joints (Free Type Tapped)

Convex Shaped Concave Shaped Material Surface Treatment
Standard Wide Type Bolt Fixing Type
EN 1.1191 Equiv. Black Oxide
Electroless Nickel Plating
EN 1.4301 Equiv. -

■Sizes and Dimensions

M-Pitch Hole Dia. (Selectable) B 1mm Increment Overall Length A
Convex Type Concave Type
Standard Wide
Type
Bolt Fixing
Type
*3 - 0.5 3 4 5 - - - - - - - - - 3 ~ 10 3 ~ 5 6 ~ 10 6 ~ 10 L+6
*4 - 0.7
*5 - 0.8 - 4 5 6 - - - - - - - - 4 ~ 12 4 ~ 6 7 ~ 12 7 ~ 12
*6 - 1.0
 8 - 1.0 - - 5 6 8 - - - - - - - 5 ~ 16 5 ~ 8 9 ~ 16 L+8
*8 - 1.25 9 ~ 16
 10 - 1.25 - - - 6 8 10 - - - - - - 6 ~ 20 6 ~ 10 11 ~ 20
*10 - 1.5 11 ~ 20
 12 - 1.25 - - - - 8 10 12 13 - - - - 8 ~ 22 8 ~ 11 12 ~ 22 - L+10
 12 - 1.5
 14 - 1.5 - - - - - 10 12 13 14 15 16 - 10 ~ 25 10 ~ 13 14 ~ 25 L+12
 16 - 1.5
 18 - 1.5 - - - - - - 12 13 14 15 16 20 12 ~ 28 12 ~ 14 15 ~ 28 L+14
 22 - 1.5 12 ~ 32 12 ~ 16 - L+16
 26 - 1.5 12 ~ 38 12 ~ 18 L+19

Only those sizes with * marks are available for Bolt Fixing Concave Type.

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IDEA NOTE Structure with an air cylinder does not require motor.

It is possible to construct a turn table even without knowledge of motors.

IDEA NOTE Enhanced rigidity

A structure is employed in which the cam follower can also receive the load of the turn table.

IDEA NOTE Axis cross-sectional view

The ratchet plate and the positioning plate are fastened with screws.

  • 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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    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.
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    5. The Data including the third-part components are made by the Company.

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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
    • To rotate 8-position index table to process workpiece.
  • Operation
    • Performs angle feed of turn table.
    • By retracting the cylinder, removes the indexing finger from the groove of indexing gear.
    • As the cylinder is extruded, the ratchet claw is engaged with the ratchet gear, causing the index table to rotate. The tension spring keeps pressing the ratchet claw against the ratchet gear.
    • The cylinder inserts the indexing claw in the groove of the indexing gear to perform rotational positioning. Retracts cylinder.

Target workpiece

  • Shape: connector
  • Size: W50 x D50 x H30mm
  • Weight: 0.15kg

Design Specifications

Operating Conditions or Design Requirements

  • Movement angle: 45 degrees
  • Division by 360/8 degrees
  • Cylinder stroke: 100mm
  • Stopper stroke: 10mm
  • Outer dimensions: Ø600 x H114mm

Selection Criteria for Main Components

  • Selected an air cylinder that has the thrust specification required to rotate the index table 45 degrees in 1 second.

Design Evaluation

Verification of main components

  • The cylinder thrust is verified to see whether it can withstand the workpiece load.
    • Here, calculation for selecting air cylinder thrust is explained.
    • Conditional value: angle θ = 45degrees, movement time t = 1sec., link arm length L = 0.125m, moment of inertia applied to air cylinder I = 0.5492kg・m²
    • As uniform acceleration motion is assumed as angular velocity here, θ: oscillating angle (rad), 45° = 2π / 8rad
    • Angular velocity after t seconds: ω = 2・θ / t = 2 x (2π / 8) / 1 = 1.571rad/sec
    • Equation of rotary motion: from I・ω = M and M = F・L, cylinder thrust F = I・ω / L = 0.5492 x 1.571 / 0.125 = 6.9N
    • Theoretical thrust of Ø40 air cylinder: 628 (N) when air pressure in use is 0.5MPa
      -> As F = 6.9 (N) ≤ 628 (N), this is acceptable.

Other Design Consideration

  • The ratchet mechanism shall have a sufficient strength. 
    The bending stress shall be 29 (N/mm²) or less and the shearing stress shall be 24.7 (N/mm²) or less.
  • For the strength of the indexing positioning part, the required torque shall be considered.

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 Deep Groove Ball Bearings B6004ZZ 4
2 Collars FNCLM-V20-D26-L12 1
3 Metal Washers FWSSM-D26-V20-T4 1
4 Metal Washers FWSSM-D26-V20-T6 1
5 Fine U-Nuts FUNT20 1
6 Cantilever Pin FXCA8-8-F7-G5 1
7 Extra Thin Resin Washers SWSPS16-8-1.0 2
8 Tension Springs AWS5-20 1
9 Spring Anchors - Wrench Flats SAIPOZ3-10 2
10 Rotary Shaft PFXFA10A-47-F20 1
11 Air Cylinders MSCCA16-10 1
12 Brackets For Air Cylinders CTKM16 1
13 Knuckle Joint FNTB6-1.0-D6-B6-U15 1
14 Hinge Pins CCGH6-12 1
15 Air Cylinders MSCCA40-100 1
16 Brackets For Air Cylinders CTKM40 1
17 Knuckle Joint FNTB14-1.5-D12-B10-U30 1
18 Hinge Pins CDGH12-25 1
19 Cam Followers CFUA6-16 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.

    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.

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