Rough boring clamp

Abstract

The invention discloses a rough boring clamp. The rough boring clamp comprises a base plate, a sliding shaft, an upper plate, a clamping and pressing oil cylinder and a connecting column, wherein the base plate is provided with a loading platform groove; the sliding shaft is arranged at one end of the base plate; one end of the upper plate is slidably arranged on the sliding shaft, and a pressing platform groove corresponding to the loading platform groove is formed in the upper plate; the clamping and pressing oil cylinder is fixedly arranged on the bottom end face of the other end of the upper plate, and the connecting column is connected with the base plate through a fixing platform and fixedly connected with an oil cylinder shaft of the clamping and pressing oil cylinder; and a loading platform is arranged on the loading platform groove, a pressing platform is arranged on the pressing platform groove, and pressing blocks which are made of flexible materials are arranged on the corresponding end faces of the pressing platform and the loading platform correspondingly. According to the rough boring clamp, the loading platform used for loading a workblank and the pressing platform which can rise and fall vertically are arranged and used in cooperation to complete clamping of a workblank of a thin-walled cylinder sleeve, the precision of rough boring after clamping of the workblank of the thin-walled cylinder sleeve is guaranteed, and the qualified rate of products is increased accordingly.

Description

【Technical field】 [0001] The invention relates to the technical field of product parts processing and a processing fixture thereof, specifically, it provides a rough boring fixture. 【Background technique】 [0002] In the field of product parts processing technology, there are many problems in the processing and production of some products due to their structural characteristics; [0003] For example, in the rough boring process of thin-walled cylinder liners, the elastic sleeve is used to surround the outer circle of the blank of the thin-walled cylinder liner at this stage to realize its clamping. The current clamping method has the following problems: [0004] 1) The blank of the thin-walled cylinder liner is generally made of die-casting. The outer circle of the blank is too small, and the elastic sleeve cannot hold the outer circle of the blank tightly, which cannot guarantee the machining accuracy of the rough boring; [0005] 2) The blank of the thin-walled cylinder l...

AI Technical Summary

Problems solved by technology

[0004] 1) The blank of the thin-walled cylinder liner is generally made of die-casting. The outer circle of the blank is too small, and the elastic sleeve cannot hold the outer circle of the blank tightly, which cannot guarantee the machining accuracy of the rough boring;

[0005] 2) The blank of the thin-walled cylinder liner is generally made of die-casting. When the outer circle of the blank is too large, the elastic sleeve will easily cause the blank to deform when it is tightly hugged to the outer circle of the blank, thus affecting the product qualification rate.

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