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No.000261 Workpiece clamp mechanism
Good IDEA!
51

A workpiece clamping and unclamping mechanism.

Related Category

Hinge Bases

Hinge Bases
Product name Hinge Bases/U-Shaped
Part number HKPB6-H25
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes

Selection criteria

Select a standard product that is easy to obtain as a fulcrum for the clevis cylinder.

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Available sizes

■Hinge Bases - U-Shaped

Type Material Surface Treatment
U-Shaped EN 1.1191 Equiv. Black Oxide
Electroless Nickel Plating
EN 1.4301 Equiv. -

■Sizes and Dimensions

Pin Dia. Pin hole height
in 1mm increments 		U-shape dimensions
2 15 ~ 20 4
3 20 ~ 25 6
4 8
5 25 ~ 30
6 10
8 30 ~ 40
10
12 12
13
14 35 ~ 45
15 16
16
20 40 ~ 50 20
25 30

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Precision Pivot Pins

Precision Pivot Pins
Product name Precision Pivot Pins/Flanged/Hex Socket Head/Threaded with Lock Nut
Part number CLBRU6-32
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Accuracy Info

Selection criteria

Select a lock nut type, which can be firmly mounted as a clevis pin.

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Available sizes

■Precision Pivot Pins - Flanged, Hex Socket Head, Threaded with Lock Nut

Material Hardness Surface Treatment Included Nut Material
Standard Nut U Nut
EN 1.1191 Equiv. - Black Oxide JIS-SWRCH EN 1.0038 Equiv.
40 ~ 45HRC
- Electroless Nickel Plating EN 1.4301 Equiv. EN 1.4301 Equiv.
40 ~ 45HRC
Plating Hardness 750HV - Hard Chrome Plating JIS-SWRM EN 1.0038 Equiv.
Plating Thickness 3μm or more
EN 1.4301 Equiv. - - EN 1.4301 Equiv. EN 1.4301 Equiv.
EN 1.4125 Equiv. 45 ~ 50HRC
45 ~ 50HRC
Plating Hardness 750HV - 		Hard Chrome Plating
Plating Thickness 3μm or more

■Sizes and Dimensions

Pin Dia. Pin Section Length
(Configurable in 0.1mm Increments) 		Head
O.D. 		Head
Height 		Thread Length Thread Dia. X Pitch
Ø4 10.0-50.0 Ø7 5 6 M3 x 0.5
Ø5 10.0-60.0 Ø9 M4 x 0.7
Ø6 10.0-100.0 Ø10 9 M5 x 0.8
Ø8 10.0-100.0 Ø13 M6 x 1.0
Ø10 Ø16 12 M8 x 1.25
Ø12 10.0-200.0 Ø18 16 M10 x 1.5
Ø13 20.0-200.0 Ø24 18 M12 x 1.75
Ø14
Ø15
Ø16 20.0-200.0
Ø17
Ø18 24
Ø20 Ø27 M16 x 2.0
Ø22 20.0-200.0
Ø25 Ø30

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Accuracy Info

■Precision Pivot Pins

Pin Dia. Tolerance
Ø4-Ø6 -0.004
-0.012
Ø8 ･ Ø10 -0.005
-0.014
Ø12-Ø18 -0.006
-0.017
Ø20 ･ Ø22 ･ Ø25 -0.007
-0.020

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IDEA NOTE A mechanism that clamps/unclamps workpieces by pushing the cam follower on the side.

A cam follower is mounted on the pushed part of the turntable. When a part enters the turntable, the cam follower hits the side of the received part, unclamping the product.

IDEA NOTE Multiple workpieces can be set.

The vacant space in the turntable is used to house the flat spring. The mechanism has a space-saving structure and is capable of setting multiple workpieces.The current table can be expanded to 8 units.

  • Terms of use of CAD data and simplified drawing data
    These terms and conditions (hereinafter referred to as “the Terms") set forth the conditions for downloading CAD data and simplified drawing data provided by MISUMI Corporation (hereinafter referred to as "MISUMI") via www.misumi-europe.com operated by MISUMI Europa GmbH(hereinafter referred to as the "Website"). By downloading CAD data and simplified drawing data posted on the Website (hereafter referred to as “Data”), customers are deemed to have agreed to these Terms.

    1. Purpose of Use
    MISUMI offers the following:
    1)CAD data found on the Website (3D CAD data, 3D Intermediate data and 2D CAD data) for the purpose of informing customers of the characteristics of the products offered by MISUMI or a manufacturer affiliated with MISUMI for use in their designs.
    2)Simplified drawing data (in PDF format) for the purpose of checking the specifications of products.
    2. Characteristics of Data
    There may be a discrepancy in certain characteristics of products (for example: tolerance, surface roughness, chamfer, etc.) between the Data and the actual product. Furthermore, for the purpose of reducing the file size of the Data, some information such as oil groove shapes, threads, or spring shapes, may be removed from the Data.
    3. Disclaimer
    MISUMI carefully creates the Data but makes no warranty as to the quality, accuracy, functionality, safety, reliability, etc., of the Data. MISUMI may at any time, and with no prior notice to customers, revise or delete Data. MISUMI assumes no responsibility for any damage or loss resulting from any revision or deletion of the Data, or any errors in said data. Customers are solely responsible for all aspects of their own designs, including those made using the Data. MISUMI may provide customers with design example data on the Website, but the quality, accuracy, functionality, safety, reliability, etc., of such data are not guaranteed. MISUMI may, at any time, and in its sole discretion, request that the customer cease its use of or destroy the Data in its possession. MISUMI may request the customer provide MISUMI documentation of such destruction.
    4.Prohibited Acts
    Customers or users of the Data, are prohibited from the following acts regarding the Data, in whole or in part:
    (1)Requesting quotations or placing orders for products with third parties other than those authorized by MISUMI or its affiliates;
    (2)Receiving quotations or orders for products from third parties by providing the Data to a third party or using the Data in their own business;
    (3)Displaying links to the Website related to the Data on their own websites, etc., without consent of MISUMI or its affiliates;
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    (10)Performing acts that interfere with the proper functioning of this Website, such as acquiring Data in bulk.
    5. Copyright
    All title and copyright in and to any information contained in the Data are owned by MISUMI or the relevant manufacturer affiliated with MISUMI and are protected by applicable copyright laws and international treaties. By downloading Data, the customer acquires no ownership rights of any kind in the intellectual property contained within. Without prior approval from MISUMI, no part of the Data may be utilized (reproduced, modified, reverse-engineered, uploaded, presented, sent, distributed, licensed, sold, or published) for any purpose other than that mentioned above.
    In the event Data is found to have been to be used for any purpose other than that mentioned above or against any applicable laws or the Terms, MISUMI may pursue any legal remedy available to it, which may result in forbidding the offending user from using the Data or accessing the Website.
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    MISUMI offers some Data provided by third parties. Such Data may be subject to separate terms and conditions, in addition to these terms. MISUMI makes no guarantee or warranty regarding Data from third parties.
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    Customers shall comply with all applicable laws and regulations regarding the export of the Data.
    8. Amendments to the Terms
    MISUMI may, at any time, and in its sole discretion, modify these terms and conditions; any such modification will be effective immediately.
    9. Severability
    If any term or provision of these Terms is invalid, illegal, or unenforceable in any jurisdiction, such invalidity, illegality, or unenforceability shall not affect any other term or provision of these Terms or invalidate or render unenforceable such term or provision in any other jurisdiction. Section 139 BGB (German Civil Code) shall not apply.
    10．Miscellaneous
    In the event that Customers violate the Terms, MISUMI and/or MISUMI Europa GmbH shall be entitled to claim the damages and expenses (including attorney's fees) incurred by such violation against the Customers.
    These Terms and any disputes arising in connection therewith shall be exclusively governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflicts of law principles. The courts located in Frankfurt am Main/Germany shall have exclusive jurisdiction to adjudicate any dispute arising in connection with these Terms. By downloading the Data, you agree to submit to the exclusive and personal jurisdiction of the courts located in Frankfurt am Main/Germany.

    Revised: September 21, 2025

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    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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  • * 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

  • Clamps workpieces using a flat spring.
  • The workpiece is held on the turntable using a linking mechanism, and unclamped through the use of a cam follower mounted on the table.

Points for use

  • Rotates the turn table using separate units and stops in the unclamping position. The work piece can then be removed, and operated for the next clamping and rotation.

Target workpiece

  • Material: ABS disc
  • External dimensions: Ø16 x 6mm
  • Workpiece mass: 2g

Design Specifications

Operating Conditions or Design Requirements

  • Cylinder stroke: 30mm
  • Deflection of the flat spring at clamp 1.5mm
  • Deflection of the flat spring at unclamp 3mm.
  • External dimensions: W296 x D244 x H237mm

Required Performance

  • Spring load: 1N (with the workpiece clamped)
  • Flat spring material: EN 1.4301 Equiv.

Selection Criteria for Main Components

  • Flat spring
    • Can utilize the available space and meets the clamping load needs.

Design Evaluation

Verification of main components

  • Flat spring
    • Required plate thickness: t
      Plate width: b = 7mm
      Clamp force: P = 1N
      Young's modulus: E = 199GPa
      Load position: l = 37mm
      Deflection at clamp: δ = 1.5mm
      Number of flat springs used: n = 2pieces
      t = ((12 x P/n x l³)/(3 x δ x E x b))⅓
      = ((12 x 1/2 x 37³)/(3 x 1.5 x 199 x 10³ x 7))⅓
      = 0.36
      From t > 0.36mm, t is set to be t = 0.4mm.

Other Design Consideration

  • A mechanism that clamps and unclamps a workpiece from the side. A cam follower is used for the unclamping unclamp process to achieve a floating condition.

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 Air Cylinders MSCCA16-30 1
2 Flow Rate Control Valves SPSNL4-M5 2
3 Sensors for Air Cylinders MD13L1 2
4 Rod End Bearings PHSC6 1
5 Hinge Bases HKPB6-H25 1
6 Hinge Bases HKTB10-H30 1
7 Hinge Bases HGSUB6-W10-H30 1
8 Oil Free Bushings MPBZ6-10 2
9 Hinge Pins CLBRU6-32 2
10 Cam Followers CFUA3-10 4
11 Socket Head Cap Screws-with Washer CBST3-15 8
12 Socket Head Cap Screws-with Washer CBST4-15 2
13 Socket Head Cap Screws-with Washer CBST5-20 2
  • 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 of use of CAD data and simplified drawing data
    These terms and conditions (hereinafter referred to as “the Terms") set forth the conditions for downloading CAD data and simplified drawing data provided by MISUMI Corporation (hereinafter referred to as "MISUMI") via www.misumi-europe.com operated by MISUMI Europa GmbH(hereinafter referred to as the "Website"). By downloading CAD data and simplified drawing data posted on the Website (hereafter referred to as “Data”), customers are deemed to have agreed to these Terms.

    1. Purpose of Use
    MISUMI offers the following:
    1)CAD data found on the Website (3D CAD data, 3D Intermediate data and 2D CAD data) for the purpose of informing customers of the characteristics of the products offered by MISUMI or a manufacturer affiliated with MISUMI for use in their designs.
    2)Simplified drawing data (in PDF format) for the purpose of checking the specifications of products.
    2. Characteristics of Data
    There may be a discrepancy in certain characteristics of products (for example: tolerance, surface roughness, chamfer, etc.) between the Data and the actual product. Furthermore, for the purpose of reducing the file size of the Data, some information such as oil groove shapes, threads, or spring shapes, may be removed from the Data.
    3. Disclaimer
    MISUMI carefully creates the Data but makes no warranty as to the quality, accuracy, functionality, safety, reliability, etc., of the Data. MISUMI may at any time, and with no prior notice to customers, revise or delete Data. MISUMI assumes no responsibility for any damage or loss resulting from any revision or deletion of the Data, or any errors in said data. Customers are solely responsible for all aspects of their own designs, including those made using the Data. MISUMI may provide customers with design example data on the Website, but the quality, accuracy, functionality, safety, reliability, etc., of such data are not guaranteed. MISUMI may, at any time, and in its sole discretion, request that the customer cease its use of or destroy the Data in its possession. MISUMI may request the customer provide MISUMI documentation of such destruction.
    4.Prohibited Acts
    Customers or users of the Data, are prohibited from the following acts regarding the Data, in whole or in part:
    (1)Requesting quotations or placing orders for products with third parties other than those authorized by MISUMI or its affiliates;
    (2)Receiving quotations or orders for products from third parties by providing the Data to a third party or using the Data in their own business;
    (3)Displaying links to the Website related to the Data on their own websites, etc., without consent of MISUMI or its affiliates;
    (4)Using or reproducing the Data beyond the scope of the above-stated Purpose of Use;
    (5)Modifying, altering, tampering with, translating, or adapting the Data;
    (6)Selling, transferring, lending, sublicensing, or providing the Data to third parties in any way without consent of MISUMI or its affiliates;
    (7)Altering the content, reverse engineering, decompiling, disassembling, or analyzing the Data;
    (8)Publicly disclosing or exhibiting the Data without consent of MISUMI or its affiliates;
    (9)Using the Data for the purpose of providing products and services identical or similar to those of MISUMI or its affiliates;
    (10)Performing acts that interfere with the proper functioning of this Website, such as acquiring Data in bulk.
    5. Copyright
    All title and copyright in and to any information contained in the Data are owned by MISUMI or the relevant manufacturer affiliated with MISUMI and are protected by applicable copyright laws and international treaties. By downloading Data, the customer acquires no ownership rights of any kind in the intellectual property contained within. Without prior approval from MISUMI, no part of the Data may be utilized (reproduced, modified, reverse-engineered, uploaded, presented, sent, distributed, licensed, sold, or published) for any purpose other than that mentioned above.
    In the event Data is found to have been to be used for any purpose other than that mentioned above or against any applicable laws or the Terms, MISUMI may pursue any legal remedy available to it, which may result in forbidding the offending user from using the Data or accessing the Website.
    6. Third-Party Data
    MISUMI offers some Data provided by third parties. Such Data may be subject to separate terms and conditions, in addition to these terms. MISUMI makes no guarantee or warranty regarding Data from third parties.
    7. Export Control
    Customers shall comply with all applicable laws and regulations regarding the export of the Data.
    8. Amendments to the Terms
    MISUMI may, at any time, and in its sole discretion, modify these terms and conditions; any such modification will be effective immediately.
    9. Severability
    If any term or provision of these Terms is invalid, illegal, or unenforceable in any jurisdiction, such invalidity, illegality, or unenforceability shall not affect any other term or provision of these Terms or invalidate or render unenforceable such term or provision in any other jurisdiction. Section 139 BGB (German Civil Code) shall not apply.
    10．Miscellaneous
    In the event that Customers violate the Terms, MISUMI and/or MISUMI Europa GmbH shall be entitled to claim the damages and expenses (including attorney's fees) incurred by such violation against the Customers.
    These Terms and any disputes arising in connection therewith shall be exclusively governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflicts of law principles. The courts located in Frankfurt am Main/Germany shall have exclusive jurisdiction to adjudicate any dispute arising in connection with these Terms. By downloading the Data, you agree to submit to the exclusive and personal jurisdiction of the courts located in Frankfurt am Main/Germany.

    Revised: September 21, 2025

    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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