High-speed joining

RIVTAC® Automation

The fully automatic system with process monitoring

The innovative joining technique for all sorts of materials

Ideal for diverse material combinations and for applications involving mass production with maximum flexibility in terms of production planning.

Universal material combinations are becoming increasingly important, especially in the development of modern vehicle and car body designs. RIVTAC® is particularly suitable for joining aluminium, steel, plastics and non-ferrous metals as well as for mixed joints, multilayer joints and hybrid joints of these materials.
The RIVTAC® automation system permits fully automated joining and is ideal for applications involving mass production with maximum flexibility in terms of production planning.


Method / principle

The tack penetrates the materials of the components to be joined at high speed. A momentary rise in temperature in the joining zone and the resulting improved flowability causes the parent material to be displaced into the annular grooves on the shank of the tack. A high form fit is achieved.
At the same time, especially for higher-strength steel materials, a non-positive connection due to pressing and compression of the material is obtained.

Applications

RIVTAC® is particularly suitable for joints of aluminium, steel, plastics, non-ferrous metals as well as for mixed joints, multilayer joints and hybrid joints of these materials.

Product benefits
  • Joining without pre-punching with access from one side only
  • Reduction of joining and cycle times to a minimum
  • Joining of high-strength materials
  • Flexible application for mixed joints, multilayer joints and hybrid joints
  • Optimal possibility of combining with adhesion technology

Product benefits

There are many good reasons for using our products.

Find out more about strengths, options and specific product benefits. For every detail.

No pre-punching

Joining without pre-punching with access from one side only.

Flexibility in production

Flexible application for mixed joints, multilayer joints and hybrid joints.

Detailed description

 

RIVTAC® technology

High-speed joining with RIVTAC® occurs in one quick and easy operation. In just one step, the tack penetrates the components and joins them efficiently together without the need for pre-punching.
The tack penetrates the materials of the components to be joined at high speed. The speed, which can be controlled by means of the adjustable pressure, is dependent on the materials and component thicknesses.
The tack penetrates both components. A momentary rise in temperature in the joining zone and the resulting improved flowability causes the parent material to be displaced into the annular grooves on the shank of the tack. A high form fit is achieved. At the same time, especially for higher-strength steel materials, a non-positive connection due to pressing and compression of the material is obtained.

RIVTAC® setting procedure – 1) Positioning 2) Entering 3) Penetration 4) Bracing

Setting procedure

1) Positioning
2) Entering
3) Penetration
4) Bracing

 

The RIVTAC® automation system enables fully automatic joining. It is designed for high volume applications and provides maximum flexibility in production planning.

 

Setting tool

  • One-sided accessibility to the joint
  • Low profile setting head gives optimal accessibility
  • Pneumatical drive with drive piston and elastic, internal stop
  • Spiral feed magazines store up to 95 tacks incl. level monitoring and separation stop control
  • Transfer unit with sensors for stroke stop and position control
RIVTAC® high-speed joining – Setting tool

RIVTAC® setting tool

System component

 

Station

  • Loading station for storage and feeding of loose RIVTAC® tacks
  • Separation of tacks on two independent feed rails via an automatic director plate
  • Individual stop-start operation of feed rails incl. position control and step-by-step level monitoring per feed rail
  • Feeding system with vibratory bowl feeder and storage bin for up to 35,000 tacks
RIVTAC® high-speed joining – Station

RIVTAC® station

System component

 

Valve unit

  • Fast response times due to short strokes
  • Integrated proportional valves for a continuous regulation of joining pressure
  • Energy-optimised drive of the setting tool
  • Capable of being integrated on the third robot axis
  • Easy to maintain due to well described couplings and markings
RIVTAC® high-speed joining – Valve unit

RIVTAC® valve unit

System component

 

Power unit: Böllhoff Control System (BCS)

  • Local hardware configuration with central controlling of machine components by bus-system
  • „Embedded PC“ based control for the connection of a visualisation system
  • Optimised process times of 0.9 sec. to 1.5 sec. / tack (high economic efficiency)
  • Open interface to diverse robot cutting sites (ProfiNet, Interbus, Profibus etc.)
  • Qualification of all components conforming to standards
RIVTAC® high-speed joining – Power and control unit

RIVTAC® power and control unit

System component

 

Visualisation

  • Visualisation on an industrial-suited screen
  • Visualisation via external panel
  • Operation instruction via touch screen
  • Multi visualisation of diverse systems by one control panel
  • Integration of the calibration function possible
RIVTAC® high-speed joining – Visualisation

RIVTAC® visualisation

System component

 

Process monitoring

  • Process monitoring module by measurement of response force and / or displacement measurement
  • Analysis of the response force measurement via windowing
  • Analysis of the displacement measurement via windowing
  • Statistical control of the process monitoring data
  • Integrated final window check
RIVTAC® high-speed joining – Process monitoring

RIVTAC® process monitoring

System component

Downloads

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Title Language Version File Download
RIVTAC®
The innovative high-speed joining process
English 6810/15.02 817 kB / PDF
English 6810/15.02 817 kb / PDF

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