Combined fixture integrated platform

Abstract

A combined fixture integrated platform comprises an indexing system, a fine adjustment system, a worm gear transmission system, a clamping system, a tensioning system, an upper bedplate, a lower bedplate, a support part, an adjusting gasket, a three-jaw chuck and flat tongs. The upper bedplate is connected with the lower bedplate by a hinge, the upper bedplate, the lower bedplate and the support part form three sides of a right-angled triangle, and a sinusoidal angle is changed correspondingly by means of changing the height of the support part by the aid of the sine law of the triangle. The indexing system can realize equal angular indexing, an indexing value of the minimum angle with 9.4-second difference can be achieved by the aid of the fine adjustment system, and a rotating system can realize a function of rotating a worktable. A sinusoidal table and an indexing disc are used together so as to obtain composite spatial angles. When the combined fixture integrated platform is placed at a limit angle of 0 degree or 90 degrees, functions of a planar worktable or a perpendicular worktable can be realized, workpieces in various shapes can be positioned and clamped by means of replacing the three-jaw chuck, the flat tongs and combined fixture elements, and multiple purposes of a combined fixture are realized.

Description

Technical field: [0001] The invention relates to a combined fixture integration platform, which belongs to the technical field of combined fixture device structures mainly used for auxiliary machining in the machinery industry. Background technique: [0002] At present, there are two types of combination fixtures used in the machining industry, groove system combination fixtures and hole system combination fixtures. [0003] Groove system combination fixture: there are multiple T-shaped slots on the base plate, and various supports can move linearly along the T-shaped slots according to needs. It has the advantages of convenient movement and adjustment, but its positioning and locking are generally Use bolts to tighten and lock in the direction of the Z axis. The locking force is pure friction, and the friction coefficient is about 0.1, which means that the friction force is only about 10% of the locking force. If the force is too large during the machining process, especia...

AI Technical Summary

Problems solved by technology

If the force is too large during the machining process, especially when there is an impact load, displacement will easily occur, resulting in a reduction in the machining accuracy of the parts or even scrapping

[0004] Hole system combination fixture: the base plate and the support are covered with pin holes. Various supports can be selected according to the needs of different hole positions on the base plate and pin them together with double pin shafts to achieve positioning. The bolt is locked along the Z-axis direction; when the force is applied in the horizontal direction, it not only has the locking force of the bolt, but also has the shearing force of the double pin shaft, which greatly improves the mechanical strength, achieves rigid positioning, and improves the stability of the parts. Machining accuracy, but the displacement of the support is limited by the hole position and can only be stepped between the hole distances, which brings difficulties and inconvenience to the fixture assembly

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