Workholding system design provides big advantages

Edited by the Engineeringtalk editorial team Oct 9, 2001

Techni-Grip's workholding system design provides advantages over vice-based work holding systems by combining floating dovetail clamp assemblies with pin and hole for precise repeatable location

Techni-Grip's patented workholding system design provides numerous advantages over vice-based work holding systems by combining floating dovetail clamp assemblies that pull the material to the face of the fixture, and pin and hole for precise repeatable location.

Beyond the locating function, the pins anchor the material in the clamping axis to eliminate the propensity of the material to slide inside the dovetail clamps or rotate common to the clamping axis.

In doing so, we have solved many challenges regarding production efficiency: * standardization of fixturing reducing tooling design requirements.

* reduction of excess material to.125 maximum (to hold any size or type of material).

* holding capacity increases amount of material that can be removed in a given cut.

* eliminates all loading variables for operator error - no parallels, no spreaders, no indicators, nothing to set-up and nothing to tear down.

* reduces changeover time to as little as 4 minutes from one part configuration to another.

* allows you to run endless part configurations on the same fixture.

* allows you to run multiple parts on one fixture.

* increases dimensional repeatability based on precise, repeatable location and a reduction of distortion from vise pressure (25 ft lbs is the maximum clamping torque for hard materials such as titanium or heat treated steels).

* the best tool on the market to maximize pallet space in a cellular manufacturing.

center.

Everything in these assemblies is manufactured in our facility except the springs.

We are presently in the process of putting together a complete catalog of our current production models.

The following information is some data you may be interested in: * the body of the fixture is 6061-t651aluminum, hard anodized.0018/.0020 thick.

* the dovetail clamp bodies are 15-5 steel, heat treated to 180/200ksi.

* the locating pins are 15-5 steel.

* the locating pins are.4984 +/-.00035 diameter, on 1.375 centers.

* material prep.

is standardized, but may be established in varied configurations.

* prep material with (2).500 diameters, .125 deep and 30 degree dovetail cuts, also.125 deep.

* as the clamp assy's are floating within a given range of motion, the dovetails need not be held to tight parallelism and can be offset as long as the.500 dia's are in-line.

* diametrical tolerance on the.500 diameters in the stock is contingent upon the dimensional precision required for the given application.

* the stock prep may be offset in x,y or z for cutter accessibility or established in multiple directions on the material.

* the units may also be mounted parallel allowing you to double the clamping platform width by using an extended bolt in the clamp assemblies and locating on two diagonal pins.