Convertible modular fixture of multifunctional frictional wear testing machine

A technology of friction and wear test and combined fixture, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems that cannot meet the needs of experiments, difficulties in tribological tests, single model of indexable CNC turning blades, etc., and achieve disassembly and assembly Easy and convenient replacement, accurate and effective tribological properties, stable and reliable clamping effect
CN102539232AActive Publication Date: 2012-07-04WUHAN RES INST OF MATERIALS PROTECTION
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUHAN RES INST OF MATERIALS PROTECTION
Publication Date
2012-07-04

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Abstract

The invention provides a convertible modular fixture of a multifunctional frictional wear testing machine, relating to an indexable numeric control turning blade fixture. The primary structure of a convertible fixture of the convertible modular fixture provided by the invention is a stepped slot, the stepped slot is provided with an upper base surface, a slot side and a slot bottom surface, the slot side and the slot bottom surface are mutually vertical, the lower part of the stepped slot is provided with a U-shaped opening cutter feeding slotted hole, the upper part of the stepped slot is provided with a U-shaped opening cutter retracting slotted hole which is consist with the direction of the cutter feeding slotted hole, a slot included angle, a tool cutting edge angle, an oblique angle, tool cutting edge inclination and a front angle related angle are formed, and a calculation formula which can design and calculate an included angle-inclined angle between a center line of a slot and the horizontal line is provided, namely the tool cutting edge angle Kr is equal to 90 degrees plus or minus (oblique angle alpha-1 / 2. the slot included angle theta), thus the primary structure of the convertible fixture which can be comprehensively and accurately adaptive to a diversity indexable numeric control turning blade, and an accurate, high-efficiency and practical innovative tool is provided for detecting and evaluating tribological properties and cutting capacity of the indexable numeric control turning blade.
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Description

technical field

[0001] The invention relates to a convertible combined clamp for a multifunctional friction and wear testing machine, in particular to a clamp for an indexable numerically controlled turning blade of a multifunctional friction and wear testing machine (UMT). Background technique

[0002] The UMT multi-functional friction and wear testing machine of CETR company in the United States is a widely used tribological test device. It can evaluate the friction performance of indexable CNC turning inserts and their surface coatings by using suitable fixtures. Due to the diversification of the shape of indexable CNC turning inserts, and in actual turning, there are left and right offsets, as well as a variety of entering angles, rake angles, and edge inclination angles, it is recommended to directly use indexable CNC turning inserts for UMT friction Difficulties in scientific testing. The fixtures in the prior art can only be installed in a simple vertical direction, ...

Claims

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