Special fixture for clamping frame artifacts

Abstract

The invention discloses a special fixture for clamping frame artifacts, which comprises a base board and a plurality of Z-direction positioning devices. The working platform of the base board is horizontally provided with one row or one row and above sectional clamping grooves. The Z-direction positioning devices are respectively installed in the clamping grooves along the horizontal mid-line position of the clamping grooves. The Z-direction positioning devices comprise a Z-direction clamping cylinder which is vertically arranged at the bottom of the base board and is mounted under the groove surface of the clamping groove. The Z-direction positioning device is controlled by the Z-direction clamping cylinder to move up-and-down. The Z-direction positioning device enables frame artifacts arranged under the left and right sides of the Z-direction positioning device to be clamped in the groove, and thus the Z-direction positioning is realized. A protective cover is also mounted on the periphery of the base board. The invention provides the special fixture with vertical clamping position for clamping frame artifacts. The axial displacement of the artifacts when processing is avoided. The special fixture for clamping frame artifacts is reasonable in structure and more beautiful in appearance.

Description

technical field [0001] The invention relates to the field of machining fixtures, in particular to a special fixture for clamping frame workpieces. Background technique [0002] With the development of numerical control technology, many parts of products are processed by CNC machine tools. Generally, fixtures need to be installed on the machine tool to clamp the workpiece or guide the tool. Its function is to position the workpiece so that the workpiece can obtain relative The correct position, and reliable clamping of the workpiece. In the processing of LCD TV frame workpieces, the frame workpieces are generally clamped by double fixed clamping fixtures on the left and right sides of the cylinder. When the workpiece is processed, it only receives the radial clamping force in the Y direction, and the workpiece in the Z direction axis It is prone to movement and affects the accuracy of processing. In addition, because the clamping contact surface of the frame workpiece is sm...

AI Technical Summary

Problems solved by technology

In the processing of LCD TV frame workpieces, the frame workpieces are generally clamped by double fixed clamping fixtures on the left and right sides of the cylinder. When the workpiece is processed, it only receives the radial clamping force in the Y direction, and the workpiece in the Z direction axis It is easy to move and affect the precision of processing

In addition, because the clamping contact surface of the frame workpiece is small, if the radial clamping force is increased, the pressure loss of the frame workpiece may occur, so that the processing of the frame workpiece is not precise, and the qualified rate of the finished product is not high

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