Tensioning mechanism for brake shoe machining

Abstract

The invention provides a tensioning mechanism for brake shoe machining, and belongs to the technical field of automobile braking. The tensioning mechanism comprises a positioning plate, a bottom plate, a top block, small positioning columns, a left-side multi-head screw, connecting rods, a left-side tensioning block, a pressing connecting rod, a pull rod, a right-side tensioning block, a pressingconnecting rod pin, large positioning columns, a right-side multi-head screw, a limiting plate, a sliding groove plate, a positioning pin, supporting seats, a supporting pin, a vertical lathe spindleworkbench, a tensioning pin and a tensioning shaft rod. The positioning pin is connected with the bottom plate through positioning pin holes of the four supporting seats correspondingly, the two sidesof the bottom plate are correspondingly provided with two small positioning columns and the large positioning column, the two ends of the pressing connecting rod are correspondingly connected with the connecting rods, and the middle of the pressing connecting rod is connected with the pull rod through the pressing connecting rod pin. The tensioning mechanism has the advantages that the structureis novel, the tensioning block, the multi-head screw rod, the connecting rod and the like are converted, and after the direction of the force is changed, the original manual clamping or other clampingmode is replaced by hydraulic clamping, so that the workpiece is clamped more quickly and stably, and the efficiency is higher.

Description

technical field [0001] The invention belongs to the technical field of automobile brakes, in particular, it is used for the turning process of the brake shoe friction plate in the automobile brake system with semicircular characteristics, and the occasion where the axial clamping force needs to be converted into the radial clamping force. Background technique [0002] In mechanical processing, brake shoe friction plate products with semicircular features need to be turned on the outer circle. This product is usually processed on a vertical lathe. When clamping, two brake shoes are installed on the fixture opposite to each other, and then the workpiece is clamped for cutting. It is inconvenient. In the past, most of them used manual clamping, which was low in efficiency and took a long time to clamp; or used the method of changing the clamping direction with an inclined block, but at the same time, the clamping force was relatively small, and the clamping process was not smoo...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a tensioning mechanism for brake shoe processing to solve the inconvenience caused by the existing mechanical processing technology for positioning and clamping when processing the brake shoe. The manual clamping method has low efficiency and long clamping time. , the clamping method of the inclined block conversion, the clamping force is small, and the clamping process is not smooth enough

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