Outer circle accurate grinding machine

Abstract

The invention relates to an outer circle accurate grinding machine. The outer circle accurate grinding machine comprises a plurality of front and back grinding head units; each grinding head unit comprises a fixing frame; a sliding rail is vertically arranged on each fixing frame; a grinding head sliding frame is arranged on each sliding rail; a grinding wheel shaft and a driving motor are arranged on the left side and the right side of each grinding head sliding frame respectively; and a grinding wheel is arranged on each grinding wheel shaft. According to the outer circle accurate grinding machine provided by the invention, the transmission efficiency and precision of a tug device are greatly improved; and meanwhile, the grinding head grinding wheel vertically ascends and descends through a lead screw, the grinding amount can be effectively controlled, and therefore the outer circle grinding precision of steel is guaranteed.

Description

technical field [0001] The invention relates to a precision grinding machine for an outer circle, which belongs to the technical field of grinding equipment. Background technique [0002] In the hot rolling production process of steel, defects such as cracks, scratches, and indentations inevitably exist on the surface, and such defects can be removed by grinding. The grinding operation can be carried out by manual grinding, mechanical grinding or shot blasting, among which the grinding machine is one of the most effective measures to remove such defects. The existing cylindrical grinding machine has the following disadvantages: [0003] 1. The stroke of the grinding wheel of the grinding head is controlled by the cylinder. Since the straightness and ovality of the grinding steel are difficult to be in an ideal state, and the pressure of the cylinder inevitably fluctuates, the final grinding accuracy cannot be effectively guaranteed; [0004] 2. The stroke of the grinding w...

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Problems solved by technology

[0003] 1. The stroke of the grinding wheel of the grinding head is controlled by the cylinder. Since the straightness and ovality of the grinding steel are difficult to be in an ideal state, and the pressure of the cylinder inevitably fluctuates, the final grinding accuracy cannot be effectively guaranteed;

[0004] 2. The stroke of the grinding wheel of the grinding head is controlled by the cylinder, and the expansion and contraction of the cylinder drives the grinding wheel on the rocker arm to swing up and down, so the grinding amount cannot be precisely controlled, and the maintenance and replacement of the grinding head is also inconvenient;

[0005] 3. The layout of the grinding head is unreasonable, which greatly increases the space occupied by the equipment and the manufacturing cost;

[0006] 4. The design of the tugboat device is unreasonable, only one side of the tugboat is tilted, its transmission efficiency and precision are poor, and the friction between the steel and the other side of the tugboat is relatively large, which greatly reduces the service life of the tugboat, and also easily affects the surface quality of the steel;

[0007] 5. It is very inconvenient to adjust the inclination angle of the tugboat, which greatly reduces the grinding efficiency

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