MODULAR FIXTURE

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SEMINAR ON

• MODULAR FIXTURE

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MODULAR FIXTURE

• Introduction to modular fixture
• -components
• Advantage of modular fixture
• Application
• Conclusion

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fixture

•  
• A fixture is primarily a holding device. A
  fixture anchors the workpiece firmly in place for
  the machining operation, but it does not form a
  guide for the tool.
•  
• The jig is a guiding device.
• The fixture is a holding device.

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Components of modular fixture
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What is Modular Fixturing?

• A modular fixturing system is composted of
  standardized components that allow for flexible
  arrangement and interchangeability between
  different applications. The versatility of the
  components makes it a viable alternative to
  traditional fixturing methods because a single
  modular fixture system is capable of doing the
  same work as numerous dedicated fixturing
  systems.

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Modular Fixturing Components

• Tooling Plates and Blocks
• The fundamental components
• of a workholding or modular fixturing system
  are the tooling plates or tooling blocks, which
  are commonly referred to as fixture plates, grid
  blocks, or tombstones

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Tooling Plates Blocks

•     The fundamental components of a workholding
  or modular fixturing system are the tooling
  plates or tooling blocks, which are commonly
  referred to as fixture plates, grid blocks, or
  tombstones. The multipurpose holes (MTP holes) on
  both the tooling plates and blocks allow for
  accurate aligning or fastening of other
  components in a number of locations.
•     Flex plates offer the ability to work on any
  given fixture away from the machine, free from
  any space constraints. A flex base plate resides
  on a machining center pallet and will accept
  other flex tooling plates or blocks to be
  fastened onto it, which allows for fast
  changeover between applications. The two tapered
  pins allow for accurate and consistent locating
  when mounting other flex plates to the base.
• A few of the immediate benefits from using a flex
  plate modular fixturing system include
          - Fast and accurate changeover        -
  Flexible mounting of a single fixture on
  different machines        - Machining a part
  from 5 sides on a single pallet        - Reduced
  setup time compared to other conventional
  methods

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Flexible tooling plate bases
Flex plates offer the ability to work on any
given fixture away from the machine, free from
any space constraints
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Flexible Tooling Plates and Bases

• Flexible tooling plates (called flex plates for
  short) expand even further on modular style
  tooling plates. Essentially, the flex plate is a
  special tooling plate designed to independently
  fasten to a flex tooling base. The ability to
  change out an entire tooling plate between
  dissimilar jobs, as opposed to reworking fixtures
  on a dedicated tooling plate, reduces machine
  downtime due to fixture set up. Multiple fixtures
  can be arranged independently from the machine
  pallet and quickly changed out.
• The flex tooling base is designed with two
  locating pins, which are used to accurately
  position the flex tooling plate. The locating
  pins ensure accurate locating repeatability.
  Additionally, flex plates also utilize the grid
  of locating holes, which gives it the flexibility
  to mount other modular components to correctly
  position and hold a work piece.

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Modular clamp and accessories

• Modular clamps and accessories
• are extremely versatile and flexible,
• which allows them to be used in a
• wide variety of workholding
• applications.

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Modular Clamps Accessories

•         The standard modular clamp is designed to
  exert a downward clamping force on the work
  piece, similar to that of a strap clamp. Balanced
  and level clamping is maintained with the use of
  a socket toggle screw a threaded bolt with a
  swiveling contact pad on its end. Standard
  modular clamps can also be fastened to a sliding
  mount unit, which then allows the clamp to be
  positioned in the proper location.
•     The high-rise modular clamp is comprised of a
  clamp assembly with any number of modular risers.
  The primary difference is that multiple modular
  risers can be quickly and easily stacked on top
  of one another to accommodate any variable
  clamping height needed in a particular
  application. When assembled, the modular risers
  and clamp assembly are held together by
  tightening the lock nut on top. This pulls the
  couplers upward into the devices which hold the
  corresponding lock buttons tightly and securely,
  preventing movement or disassembly.

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Advantage of modular fixture

• It reduce the setup time
• It reduces storage space
• A very high degree of accuracy can be achived
• Support from various service provider
• It is very flexible

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Time saving

• There are three options to choose from when you
  get a new part to run. One can build an open
  setup which eats up a lot of machine time and may
  be difficult to repeat otherwise build a
  dedicated fixture which eats up a lot of lead
  time (average 6 weeks). Or build a modular
  fixture in 4 hours or less and accurately repeat
  the setup any time you want. For short runs, the
  choice is easy modular fixturing wins, hands down

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Accuracy

• Machining fixtures need to be both rugged and
  accurate to meet the demands of today's machining
  centers. Bluco's modular fixturing offers the
  best of both worlds. All baseplates, cubes and
  angles are made of cast iron for excellent
  vibration dampening. Each element of the system
  has an alternating pattern of tapped holes and
  accurately located precision steel bushings. The
  bushings are located /-0.0018 over 12".

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Storage

• Floor space is at a premium in most shops. Many
  fixtures are saved for spare parts. Chances are
  these fixtures were built for machines long since
  gone. A single modular fixturing kit neatly
  organized in a few cabinet drawers can easily
  replace 100's of these old fixtures saving
  valuable space and precious time. When a fixture
  is needed, simply pull out a setup drawing, a CAD
  file or a picture and gather the modular
  components. In under a half hour, your machine
  will be up and running.

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support

• Along with our free training videos, on-site
  training, free fixture designs and CAD database,
  our trained applications engineers can help with
  all aspects of your new Demmeler modular
  fixturing system. And to make buying decisions
  easier, all of our equipment comes with a 1-year
  exchange policy allowing users to return
  exchange unused components free of charge.

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Saving
Conventional Modular
How often do you have to buy a fixture? Every time you make a new part Once
How long does it take to build a fixture? 1 -2 weeks Less than a day
How easy is it to make changes to a fixture? Don't ask A matter of seconds
Where do you store these fixtures? Out back, on shelves, in trailers, on the floor On a tooling cart and in a computer (CAD)
What if a job repeats? After hours of looking, you find a fixture with missing parts Build one in minutes
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APPLICATION
Using a little creativity and a modular fixture,
this casing is setup with access to both the
front and rear bore faces. A fixture like this
will take about 90 minutes to design and build
the first time around. If the job were to repeat
some time down the road, the same fixture can be
rebuilt in under 20 minutes.
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Spindle clearance is always a concern when
working with a horizontal machining center. There
are a number of ways to raise the part off the
baseplate. As is the case with these manifolds,
4-sided precision ground consoles (yellow cubes)
are doweled and bolted to the baseplate and the
hardened locating components are dowelled and
bolted on top. Consoles can be stacked on top of
one another for taller applications.
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Spindle clearance is always a concern when
working with a horizontal machining center. There
are a number of ways to raise the part off the
baseplate. As is the case with these manifolds,
4-sided precision ground consoles (yellow cubes)
are doweled and bolted to the baseplate and the
hardened locating components are dowelled and
bolted on top. Consoles can be stacked on top of
one another for taller applications.
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Engine Room Piping Pipe shops
in the shipbuilding industry face a never-ending
demand for tubes and pipes that carry everything
from gas, steam, hydraulic fluid, oil, compressed
air, sewage, etc.  Each of these pipe assemblies
has a different requirement which is why a
universal jig system is essential to have on
hand.  Regardless of the complexity of pipe
weldments, there is a simple solution waiting to
be built with our modular fixturing Engine Room
piping
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• Fire Truck
• A number of emergency vehicle manufacturers use
  modular fixture to build everything from doors
  and ladders to cabs and chassis. The flexibility
  of our work benches offers an unlimited variety
  of applications for welding. Rather than using a
  solid 16 x 10 table, the smaller 5 x 10 weld
  table with outriggers allows easier access for
  the welders.

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 Thinned walled aluminium structure

• This thin-walled electronics enclosure needs the
  superior strength and rigidity of the Bluco
  system to negate any chatter during machining.
  With added vibration dampeners (orange handled
  unit) and various top, front and side clamps, the
  part remains stable during the entire machining
  process.

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Automotive component

• Second operation fixtures pick up machined
  locating features from the first setup. Hardened
  and ground modular fixturing components with
  controlled dimensions of /-0.0004" are critical
  to making accurate parts.

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Prototype large and small part

• Modular fixturing is best suited for short runs.
  The prototype aluminum housing and the banister
  support both proved to be simple parts but
  difficult to fixture. Design and build time for a
  modular fixture was under an hour for each part.

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Modular Welding Fixturing Ups Outputof Armored
Vehicle Components by 40
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Designed with sports car styling, the ABI
TSV-30transit bus uses a welded stainless steel
frame andbonded composite side and roof panels.
For welding the 304 stainless steel frame
accurately, the Demmeler modular fixturing system
provides a positional accuracy of 0.0015"/ft.
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CONCLUSION

• Jigs and fixtures are essential elements of a
  manufacturing system. Responsible for holding the
  work accurately and securely during its
  manufacture, they determine to a large extent its
  relevant quality and their rate at which it can
  be produced. Good design to jigs and fixture
  ensure that they fullfill their fuction
  economically is vital to the success of the
  manufacturing system .
• With use of modular fixture one can cut cost and
  time both without compromising on accuracy and
  quality very effectively

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• THANK YOU