Invert-A-Bolt™ products are routinely used to implement lean manufacturing initiatives in the work environment. By eliminating dedicated fixturing and the related costs (tool design, manufacture, maintenance & storage) and creating standardized tooling & work practices, it is possible to become
signifi cantly more effi cient & productive.
Typical usage of an IVB consists of setting up a part in a picture-frame, using the fasteners at the tab locations for hold down, while simultaneously locating at the bushed hole locations in the fixture. The picture frame machining concept is ideal for many parts since hard location against datums is not required.
Get rid of clamps and bolts, replace them with Invert-a-bolt (IVB) fasteners. These unique, flush mounted, captive fasteners eliminate obstructions to machining, reduce vibration in your setup and lower cost.
Think of them as a quick change bolt, with the added benefits of never wasting time to grind a bolt to size, nor stop your machine to change clamps. No more warped components due to clamp being over tightened.
IVBs are always in your fixture, always consistently the same length. Simply screw the larger housing diameter into the fixture plate and bring the inner diameter or stud up into your component’s stock material – for a superior holding solution.
In high-speed horizontal applications IVBs are often incorporated for workholding to reduce the risk of tooling clashes. The tiny foot print and “base up” holding power means the IVB presents little risk to high speed spindles.
Typical machining sequence for over-the-top tabbing in picture frame machining confi guration using IVB fasteners:
IVB fastener ideal for connecting two materials or objects together, especially when an unobtrusive connection is desired.
Installation requires simple preparation of the “holding “ side for the housing thread, and the “receiving” side for the stud thread. For relevant dimension values, refer to the individual product pages.
Installation example base on part no. 12080.W0021
1. Prepare the “holding” side in the following manner:
a. Drill a through hole to diameter d1 (3/4”).
b. Counter bore hole d2 (.92/.928” x 0.15”R), to a depth of l1 (1.152”).
c. Tap (or thread) m1 (1”-12UNF-2B-LH) to a depth of l2 (.950”).
2. Prepare the “receiving” side for the stud threads:
a. Tap drill m2 (27/64”) diameter through. Counter sink .60” dia x 45 degrees on receiving side
of component.
b. Tap m3 (½”-13), to a depth of l3 (.45”).
Once holding side and receiving side have been prepared, simply screw the IVB fastener into the threaded hole (m1) using the insertion tool. Torque to 35-40 ft. lbs. Place the receiving side tapped hole (m3) directly above the IVB fastener. Reach through the (m3) hole with your hex head wrench until contacting the hex head broach in the IVB stud. Start turning counter-clockwise lifting you hex head wrench at the same time. The stud will proceed into the (m3) tapped hole. Tighten until the stud is fully engaged (approx. .40 inches in the receiving side) at 35 ft. lbs. Use a feeler gauge to insure the receiving side material is pulled down properly.
Periodically remove the IVB for cleaning. The fastener can be disassembled by removing the cover in the base of the IVB, which then can be blown out to clean our accumulated metal chips and debris. For faster cleaning, simply hose water through the top of the fastener, allowing the debris to pass through the slots in the base of the product. Inspect for worn parts and purchase spares as required.
Hex key
Locating receiver
Locating post
Begin with a baseplate, the proper number of IVB Smart Locators and IVB Reicevers.
Install IVB Smart Locators into the baseplate using a hex wrench.
Load vise over the IVB Smart Locators and onto the baseplate.
Install IVB Receiver Locators.
Alexia House
Glenmore Business Park
Portfield Works
Chichester, PO19 7BJ (UK)
Telephone 0333 207 4497
or + 44 (0) 1483 266 777
Email sales@wixroyd.com
Company registration no. GB0496138
Company VAT number GB 408154022
For other bank details visit our FAQs page.