Frock clamp for hub cap end face turning

Abstract

The invention provides a frock clamp for hub cap end face turning. The frock clamp comprises an outer shaft sleeve, a movable shaft and swing arms, wherein the outer shaft sleeve is fixed on a machinehead through a thread, the movable shaft is arranged in the outer shaft sleeve and can conduct axial motion along the outer shaft sleeve, the right end face of the outer shaft sleeve protrudes to form a positioning part, the size of the positioning part is matched with the inner diameter of a hub cap, a threaded hole is formed in the left side of the movable shaft, a hydraulic jacking rod is screwed into the threaded hole and drives the movable shaft to move, crisscross connecting plates are fixed at the right end of the movable shaft, the single connecting plate is in a semicircular shape, arc-shaped grooves are formed in the connecting plates, the middles of the swing arms are connected to the outer shaft sleeve through hinges, the tails of the swing arms are arranged in the arc-shapedgrooves through pin shafts, the number of the swing arms is four, and the swing arms are distributed uniformly on the outer circumference of the outer shaft sleeve; through the movement of the movableshaft relative to the outer shaft sleeve, opening and closing movements of the swing arms can be achieved, the clamping speed of the hub cap is greatly improved, and through the linkage action of thehydraulic jacking rod and the four swing arms, the fixation of the hub cap is stable and firm.

Description

technical field [0001] The invention relates to a tooling fixture for turning the end face of a hub cover. Background technique [0002] image 3 Shown is a hubcap, its left end face is vertical, now it is necessary to turn the right end face to make it vertical as well. At present, the workshop generally uses a three-jaw chuck to grasp the hub cap, and then turns the right end face, and the three-jaw The chuck can realize the accurate positioning of the hub cover (the three-jaw chuck can be positioned on the outer circumference or the inner circumference, that is, to realize the concentricity or perpendicularity between the turning surface and the central axis, but it cannot control the parallelism between the two planes), but when replacing the hub It is cumbersome to cover, especially when multiple hub covers need to be face turned, half of the time is spent on the positioning of the hub covers on the three-jaw chuck. Contents of the invention [0003] In view of the d...

AI Technical Summary

Problems solved by technology

[0002] image 3 Shown is a hubcap, its left end face is vertical, now it is necessary to turn the right end face to make it vertical as well. At present, the workshop generally uses a three-jaw chuck to grasp the hub cap, and then turns the right end face, and the three-jaw The chuck can realize the accurate positioning of the hub cover (the three-jaw chuck can be positioned on the outer circumference or the inner circumference, that is, to realize the concentricity or perpendicularity between the turning surface and the central axis, but it cannot control the parallelism between the two planes), but when replacing the hub It is cumbersome to cover, especially when multiple hub covers need to be face turned, half of the time is spent on the positioning of the hub cover on the three-jaw chuck

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