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Biaxial Rotary Table Test Fixture

IP.com Disclosure Number: IPCOM000046161D
Original Publication Date: 1983-Jun-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 3 page(s) / 53K

Publishing Venue

IBM

Related People

Berner, DM: AUTHOR [+3]

Abstract

Devices are tested in various operating positions by using dual rotary tables to mount a test platform relative to a supporting frame. The platform is pivotable in either or both of the horizontal and vertical directions to allow accurate and secure positioning in various angular attitudes.

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Biaxial Rotary Table Test Fixture

Devices are tested in various operating positions by using dual rotary tables to mount a test platform relative to a supporting frame. The platform is pivotable in either or both of the horizontal and vertical directions to allow accurate and secure positioning in various angular attitudes.

Test assembly 10 includes a large, flat platform 11 which has a matrix of tapped holes on its upper surface to permit attachment of additional adapter plates. In a typical example, platform 11 is formed from black anodized aluminum with a pattern of 1/4" - 20 tapped holes on 3.0-inch centers arrayed across its upper surface. Platform 11 is attached to a rotary table 12 such that the axis of table 12 is perpendicular to platform 11 and passes through the center point of platform 11. Rotary table 12, in turn, is mounted on plate 14 attached to a second rotary table l5 such that the plane of plate 14 is in line with the axis of table 15. Table 15 with its axis horizontal is mounted to a relatively rigid steel tube subframe consisting of cross members 16 and 17 and end members 18 and
19. This enables mounting of the product under test (not shown) and measuring devices such as laser interferometer 20 to platform 11, while platform 11 is horizontal. Plate 14 has right-hand pivoted support 13, visible in Fig. 2, for stability of locating rotary table 12.

Subsequent to the attachment of the various devices to platform 11, platform 11 is tiltable in the horizontal direction by table 15 through an angle up to 90 degrees such as to the position shown in phantom at 21 (Fig. 1). Thus, it is possible to place the product and test device in practically any position for measurement of deflections, consistency of operation, and the like. Horizontal adjustment is available through knob 25 with vernier 26 indicating the actual position, while vertical adjustment is ava...