Concealed clamp device

Abstract

The invention discloses a concealed clamp device which comprises a base with a central hole. The middle of the base is provided with a connecting sleeve communicated with the central hole, a press sleeve is sheathed on the upper part of the connecting sleeve, the press sleeve comprises a lower cylinder and an upper hollow boss, the lower cylinder is connected with the connecting sleeve by threads, and the inner wall of the press sleeve and the upper end surface of the connecting sleeve are matched to form a clamp cavity used for clamping an anchor clamp sheet. When the concealed clamp device is used, the press sleeve is disassembled from the connecting sleeve, the press sleeve is assembled on the connecting sleeve and tightened after the anchor clamp sheet to be processed is put in the press sleeve through taper fitting, the outer wall of the anchor clamp sheet is clamped inward by the inner wall of the press sleeve, and the lower end surface of the anchor clamp sheet is tightly pressed upward by the upper end surface of the connecting sleeve, so that the anchor clamp sheet is accurately and firmly clamped in the concealed clamp device. The anchor clamp sheet can be quickly and accurately clamped by the concealed clamp device, so that the tapping quality and the tapping efficiency of the anchor clamp sheet are greatly improved.

Description

technical field [0001] The invention relates to a clamping device, in particular to a built-in clamping device. Background technique [0002] Anchor clamps are commonly used fixtures to fix anchors, usually in the shape of a circular truncated cylinder with anti-slip threads on the inner wall, such as figure 1 and figure 2 As shown, it is a trisection anchor clip, which is composed of three identical tapered arc-shaped plates 41 . In the process of producing the anchor clip, the machine-tapping clamping of the anchor clip is the key process of its tapping, but due to the structural characteristics of the tapered arc plate 41, it is difficult to use a vise or a three-jaw chuck. It is difficult to clamp and straighten it, so the tapping efficiency and tapping quality of the anchor clip cannot be guaranteed. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a built-in clamping device capable of improving the tapping efficiency and tappin...

AI Technical Summary

Problems solved by technology

In the process of producing the anchor clips, the mechanical tapping and clamping of the anchor clips is the key process of tapping, but due to the structural characteristics of the tapered arc-shaped plate 41, it is impossible to use a vise or a three-jaw chuck. It is difficult to clamp and clamp it, so the tapping efficiency and tapping quality of the anchor clip cannot be guaranteed

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