A car rim repairing device

Abstract

The invention relates to an automobile steel ring trimming device, which effectively solves the problems that the steel ring repairing precision is poor, and secondary damage such as excessive resetting and pulling deformation is prone to occurring. According to the technical scheme, the device comprises a transverse shaft used for fixing a steel ring, a supporting unit and a reset hydraulic cylinder capable of being mounted on the transverse shaft; a first plunger capable of sliding up and down is mounted on a piston of the reset hydraulic cylinder; convex edges are arranged at the upper andlower ends of the first plunger; a pressure relief hole is formed in the first plunger; a lower orifice of the pressure relief hole is formed in the side wall of the plunger, and the lower side of theorifice is flush with the upper surface of the lower convex edge; an upper orifice of the pressure relief hole is located in the side wall of the upper convex edge; a polished rod located over the first plunger is arranged on the top wall of the outer cover in a penetrating mode; a vertical threaded rod is installed on the top of the outer cover; a limiting nut is screwed on the threaded rod; andthe polished rod moves upwards to abut against the limiting nut. According to the device, excessive resetting of the steel ring can be avoided, resetting is more accurate, and meanwhile secondary damage caused by the fact that the steel ring is pulled into a non-circular shape during repairing is avoided.

Description

technical field [0001] The invention relates to the field of auto repair, in particular to a device for repairing steel rings of automobiles. Background technique [0002] Automobile steel rims, also known as wheel hubs, are the installation foundation of tires. During driving, if passing through deep pits or steep slopes at high speed, parts of the steel rims will be dented and deformed inwards due to severe impacts; currently, when repairing steel rims, steel The ring is fixed on a horizontal axis, and the hydraulic cylinder is used to push the concave position outward to reset it. When the hydraulic cylinder pushes the steel ring outward, the maintenance personnel can visually check the reset degree of the steel ring to control the start and stop of the hydraulic cylinder, and cooperate with the probe to repeatedly detect. And repair, the number of operations is large, it takes a long time and the accuracy is difficult to guarantee, and it is easy to overreset. Once the o...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automobile rim repairing device, which effectively solves the problem of poor repair accuracy of the rim, prone to secondary damage such as excessive reset, pulling deformation, etc.

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