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Clamping devices

The company of v-tech s.r.o. is specialized in a design and manufacture of the clamps and clamping systems for CNC machining. All of the devices are designed in its own Design Centre and they are produced precisely on our machinery. We sell the experience that we have acquired in our own production plant. Owing to this, we are capable of implementing solutions so that they meet our requirements to the maximum extent. We make our clamps using the materials of the top quality and the perfect processing can be revealed by a naked eye. We produce all the clamp related components in the Czech Republic.

Quick-Change Clamping System - ZERO POINT

The pneumatic quick-change ZERO POINT clamp is a basic building block of the clamping system portfolio in v-tech. It features the compact dimensions and extraordinary high clamping force used for the clamping pin retraction. This solution is primarily intended for the application on the CNC machining centres where the strictest requirements are imposed for accuracy and safe clamping of a workpiece. 

ZERO POINT Advantages
  • drastic reduction of the setting times needed for a change of the clamping device
  • high precision of clamping
  • very high clamping force
  • body of the heat treated refined steel
  • self-clamping mechanism - clamping force remains applied even after the pressure air has been disconnected
  • wide choice of various configurations
  • positioning slots for indexing by 90°
  • compact dimensions - pot height is 41 mm only
  • precise processing
  • unique structure of the clamping piston which attains the max. clamping force
The high pulling force of the pot is possible due to the unique design of the clamping pneumatic piston the shape of which is optimized for even distribution of the contact voltage while the compact dimensions are maintained.
3D model of clamping pot dia 135stp3.20 MB

Parameter Table

         Marking           Clamp. pot Ø 135   Clamp. pot Ø 135 auto       Clamp. pot Ø 175              
Pulling force242431kN
Power mediumvzduchvzduchvzduch 
Rated pressure888bar
Max. pressure101010bar
Min. pressure5,55,55,5bar
Positioning accuracy< 0,005  < 0,005< 0.005mm
Weight2,2         2,3         5,1kg
Number of cycles> 20 000> 20 000> 20 0001
Cleaning air blowyesyesyes 
Open sensornoyesno 
Preparing for airsensoringnoyesno 
Contact cleaningnoyesno 
Ordering number201601.01.01201703.00.01201803.00.01 

 

The ZERO - POINT system offers various configuration methods together with :

  • mechanical vices
  • clamping chucks
  • clamping bars
  • special clamping fixtures

Manual version

  • Clamping base 2x

    Clamping base with 2 pots

    The clamping base with 2 pots is suitable for a quick change of precision vices for CNC machining centres. All you need is a simple and quick intervention to change the clamping device in no time to reduce by doing so the undesirable setting times. The base is made of the top quality refined steel with an emphasis on the precision processing. The clamping force of 2 x 24 kN allows application even for the most demanding roughing operations.

     

    Designation  Clamping base 2x300    Clamping base 2x200   
    Number of pots22 
    Clamping force2x242x24kN
    Pitch of pots300200mm
      Pallet change time  < 10< 10s
    Power mediumairair 
    Materialrefined steelrefined steel 
    Dimensions500 x 256400 x 256mm
    Weight19.216.8kg
    Ordering number201601.01.02201601.01.18 

     

    The clamping base assembly includes:

    • the base of the refined steel
    • 2 clamping pots
    • 2 plastic glands
    • 1 clamping pin - fixed
    • 1 clamping pin - fixed - 1° of play
    • 2 positioning blocks into the mill table slot

    optional dimensional modification according to your requirements

    zakladna_2x_300pdf129.51 KB
    zakladna_2x_200pdf124.67 KB
    3D model base_2x200stp8.79 MB
    3D model base_2x300stp9.12 MB
    3D foto
    3D foto
  • Clamping base 4x

    Clamping base with 4 pots

    The version of the base with 4 pots provides a compact solution for quick clamping and positioning of the mechanical vices and clamping fixtures on the tables of vertical CNC milling machines. The positioned element can be combined easily in two directions perpendicular to each other. The base can be conveniently used for machining of the larger parts, for example, plates. The arrangement variability is very wide.

    Designation  Clamping base 4x   
    Number of pots4 
    Clamping force4 x 24  kN 
       Pallet change time  < 10s
    Power mediumair 
    Material refined steel 
    Dimensions360 x 456mm
    Weight28.6kg
    Ordering number201601.01.03 

     

    The clamping base assembly includes:

    • the base of the refined steel
    • 4 clamping pots
    • 4 plastic glands
    • 1 clamping pin - fixed
    • 4 clamping pins - 1° of play
    • 2 clamping pins - 2° of play
    • 2 positioning blocks into the mill table slot

    optional dimensional modification according to your requirements

    zakladna_4xpdf193.53 KB
    3D model base_4xstp17.18 MB
    3D foto
    3D foto
  • Clamping base 6x

    Clamping base with 6 pots

    The present centrepiece of our portfolio is the base with 6 clamping pots. The main advantage of the solution is the possibility to position more mechanical vices in several configurations. It can be also frequently used for the needs of series production where a clamp with workpiece is clamped in each pot. With the 90° pot indexing feature, this workpiece can be indexed in a simple manner. Application of the top quality heat treated tool steels and precision processing are the matter of course. Everything is controlled pneumatically.

    Designation  Clamping base 6x   
    Number of pots6 
    Clamping force6 x 24  kN  
      Pallet change time  < 10s
    Power mediumair 
    Material refined steel 
    Dimensions360 x 655mm
    Weight38.6kg
    Ordering number201601.01.04 

     

    The clamping base assembly includes:

    • the base of the refined steel
    • 6 clamping pots
    • 6 plastic glands
    • 1 clamping pin - fixed
    • 4 clamping pins - 1° of play
    • 2 clamping pins - 2° of play
    • 2 positioning blocks into the mill table slot

    optional dimensional modification according to your requirements

     

    zakladna_6xpdf268.42 KB
    3D model base_6xstp25.54 MB
  • Clamping base 1x

    Clamping base 1x

    Designation  Clamping base 1x   
    Number of pots1 
    Clamping force1 x 24  kN  
      Pallet change time  < 10s
    Power mediumair 
    Material refined steel 
    Dimensions240 x 160mm
    Weight7kg
    Ordering number201601.01.24 

    The clamping base assembly includes:

    • the base of the refined steel
    • 1 clamping pot
    • 1 plastic gland
    • 1 clamping pin - fixed

    optional dimensional modification according to your requirements

    zakladna_1xpdf101.12 KB
    3D model base_1xstp4.01 MB
  • Tombstone
    Vez_500_500_2017-05-00pdf288.90 KB
  • Accessories
    Change pallet 2 pots

    The universal change pallet for clamping your fixture or another clamping device in the clamping base of your machine.

    • As standard, it incorporates the handles to facilitate handling.
    • It is made of steel or high-strength aluminium.
    • Possible modification to meet your specific requirements - on demand
    DesignationChange pallet 2 x AlChange pallet 2 x Fe 
    Materialaluminiumrefined steel 
    Dimensions500 x 175500 x 175mm
    Weight6.317kg
    Ordering number201601.01.20201601.01.21 

     

    vymenna_paleta_2_hnizdapdf98.71 KB
    3D model palette_2x200stp736.62 KB
    Change pallet 4 pots

    The universal change pallet for clamping your fixture or another clamping device in the clamping base of your machine.

    • As standard, it incorporates the handles to facilitate handling.
    • It is made of steel or high-strength aluminium.
    • Possible modification to meet your specific requirements - on demand
    DesignationChange pallet 4 x AlChange pallet 4 x Fe 
    Materialaluminiumrefined steel 
    Dimensions375 x 360375 x 360mm
    Weight9.926.5kg
    Ordering number201601.01.22201601.01.23 

     

    vymenna_paleta_4_hnizdapdf107.03 KB
    3D model palette_4xstp1.07 MB
    Change pin - fixed

    the clamping pin designated to position pallet in the exact position. The pin is mated in the clamping pallet via the precise Ø 25 h6. The pin is made of a refined hardened steel of the top quality.

    DesignationChange pin - fixed
    Materialhardened steel
    Ordering number201601.01.07

     

    3D model pin-fixedstp17.38 KB
    Change pin - 2° of play

    this clamping pin is used to eliminate heat dilatation of the clamp that is clamped to the base. Smaller size of the fitted diameter allows movement in two axes. This method can be conveniently applied in the applications under which high heat is generated. For example, when roughing is done without using any cooling emulsion.

    DesignationChange pin - 2° of play
    Materialhardened steel
    Ordering number201601.01.48
    3D model pin_2°playstp17.81 KB
    Change pin - 1° of play

    the clamping pin with 1° of play is used to eliminate the heat dilatation in one direction. This direction is indicated with the groove milled from the pin face and it must be mounted in this way to the change pallet or the clamp.

    DesignationChange pin - 1° of play
    Materialhardened steel
    Ordering number201601.01.11
    Plastic blinder plug

    to prevent ingress of undesirable impurities into the clamping pot, it is convenient to use a blinder plug that is used in case the pot is not used.

    DesignationPlastic blinder plug
    Materialplastic POM / NBR
    Ordering number201601.01.15
    zatka_sestavapdf28.65 KB
    3D model plastic plugstp17.37 KB
    Pneumatically operated chuck dia. 110

    The pneumatically operated universal chuck with integrated air piston including adapter and control valve is a powerful tool for quick replacement of semi-finished products. The clamp is optionally configured along the clamping base and centred on the outer diameter of the clamping nest. E.g. 6-nest clamping base can be fitted with 6 universal chucks to create the multiple productive clamping system. Universal chuck is fitted with standard jaws. On request, the chuck can be equipped with the foot pedal or electric switchboard for remote control.

    Designation

    		  Pneumatic chuck dia. 110   
    Chucking force7.5kN
    Chuck diameter 110mm
    Power mediumair 
    Nominal pressure6bar
    Max. pressure7bar
    Jaws stroke5.2mm
    Weight9.1kg
      Max. clamping dia.  110mm
    Order number  

     

    SKLICIDLO_AS04stp4.31 MB
    Pneumatically operated chuck dia. 165

    Pneumatic chuck dia. 165 is a larger alternative to dia. 110. The universal chuck with integrated air piston is seated into an aluminium exchangeable pallet including control valve and two clamping pins. To locate this pallet, at least two clamping nests with the spacing of 200 mm are required. This ensures the firm clamping important for roughing operations. The exact chuck position allows palette to be configured in any direction and locating points on clamping base. On request, the chuck can be equipped with the foot pedal or electric switchboard for remote control.

    Designation

    		  Pneumatic chuck dia. 165   
    Chucking force21kN
    Chuck diameter 165mm
    Power mediumair 
    Nominal pressure6bar
    Max. pressure7bar
    Jaws stroke5.2mm
    Weight21.5kg
      Max. clamping dia.  165mm
    Order number  
    SKLICIDLO_AS06stp5.03 MB
    Adapter for a universal chuck

    The adapter is used for precise and rigid locating of any universal chuck on the clamping nest of dia. 135. The adapter includes a clamping pin and locking screws to secure precise positioning. Adapter is available as semi-finished product as standard for customizing your particular universal chuck. On request, it can be adjusted according to chuck of your specification.

    DesignationAdapter chuck
    Materialsteel
    Ordering number201601.01.XX
  • Examples
    Examples of using for CNC machines

    Grob G550 , Hermle C52 , Hermle C250 , Mazak i600

Automatic version

  • Clamping base 4x

    Clamping base for automatic pallet change


    Clamping base for automatic pallet change with 4 nests New for machining cells for unattended automatic operation. Rigid, precise and robust interface between machine tools and a robotic manipulator for automatic exchange of pallets, vices or specific fixtures. In combination with ROBOT POINT, you can turn your existing machining center into a flexible automatic cell for the production of mechanical parts. The clamping base is fitted as standard with several sensors to check the correct functionality.

    • RFID sensor for identification of an exchangeable pallet with a workpiece or semi-finished product
    • sensor for opening individual clamping nests
    • Airsensoring - checking the correct seating of the exchangeable pallet on the clamping base
    • Blowing of bearing surfaces
    • Hydraulic / pneumatic jumpers for interchangeable pallets - suitable for special automatic clamping jigs
    Designation     Clamping base 4x auto        
    Number of pots  4 
    Clamping force  4 x 24 kN
    Pallet change time < 10 s
    Power mediumair 
    Blowing of contact surfaceyes 
    Clamping checkairsensoring 
    ID of palletRFID 
    External connectionair / hydraulic 
    Uncoupling sensoryes 
    Materialrefined steel  
    Dimensions360 x 456 mm
    Weight26,1kg
    Ordering number201703.03.01 

     

    customer's modification is available

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