Upper clamping assembly and clamping device used for gear meshing testing

Abstract

The invention relates to an upper clamping assembly and clamping device used for gear meshing testing. The upper clamping assembly used for gear meshing testing comprises an installation base, a connecting piece, a base, a cover plate and a spring, wherein the connecting piece is fixedly arranged at one side of the installation base, a pressing block or a clamping piece is rotatably arranged at the other side of the installation base, a sliding groove hole corresponding to the outer contour of the connecting piece is formed in the middle portion of the base, the bottom of the base is provided with a limiting groove, when the installation base is in a movable state, the connecting piece is slidingly arranged in the sliding groove hole in the axial direction, when the connecting piece rotates and abuts against the limiting groove, the installation base is in a fixed state, the top of the base is provided with the cover plate, one end of the spring is arranged on the cover plate, and the other end of the spring penetrates through the connecting piece, and abuts against the installation base. The upper clamping assembly and clamping device used for gear meshing testing have the advantages of being wide in testing range and adjustable in clamping force.

Description

technical field [0001] The invention relates to a gear meshing test, in particular to an upper clamping assembly and a clamping device for the gear meshing test. Background technique [0002] The gear meshing test device is a commonly used tool for measuring gears. Its general principle is: the gear to be tested is meshed with the measuring gear on both sides without gaps. Or if there are scratches or protrusions on the surface of the gear teeth, the center distance between the two gears will change. By measuring the size of this change value, it can be judged whether the processing quality of the tested gear is qualified, and the position of the problem tooth is recorded. Since the center distance directions of cylindrical gears and bevel gears are different, they are usually tested separately by different gear meshing test devices on the market, which greatly increases the cost of testing. [0003] In addition, there are mainly two types of existing tops: one is a fixed t...

AI Technical Summary

Problems solved by technology

Since the center distance directions of cylindrical gears and bevel gears are different, they are usually tested separately by different gear meshing test devices on the market, which greatly increases the cost of testing

[0003]In addition, there are mainly two types of existing centers: one is a fixed center, which has a simple structure, but due to the gear meshing test, the gears often need to rotate , At this time, there will be dynamic friction between the tip and the gear, and it is easy to wear the tip, resulting in a decrease in positioning accuracy or causing gear wear and damage to the workpiece; one is the movable tip, which is generally equipped with a bearing on the conventional tip, which can ensure that the tip follows the gear. turn together

However, the above-mentioned top clamping has the following defects: the top is generally clamped based on the center circle of the gear, so it has certain restrictions on the center structure of the gear. The center circle is incomplete and the gear is clamped; the top clamping generally requires both ends of the gear to be clamped at the same time, and there will be a problem of whether both ends have the top position; when the top clamps both ends of the gear at the same time, there must be axial force , when the clamping force is too small, the gears will not be able to be clamped and swing phenomenon will occur; when the clamping force is too large, the gear transmission resistance will be too large, and the top bearing will be damaged in severe cases

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