Flexible clamp based on CNC machining

Abstract

The invention discloses a flexible clamp based on CNC machining, which comprises a bottom plate fixed on a working table of a machine tool, wherein a connecting plate is fixed at one end of the bottomplate, a backing plate made of an electric wood material is fixed on the connecting plate, positioning blocks with the height exceeding the upper plane of the plate are respectively fixed on two adjacent outer side surfaces of the connecting plate, the other two opposite outer side surfaces of the connecting plate are respectively provided with a push plate, each push plate is respectively fixedon a push plate driving mechanism capable of driving the push plate to reciprocate along the vertical direction of the push plate; the upper end surface of each push plate is respectively fixed with aclamping block, and the inner end of the clamping block is movably arranged on the upper side surface of the backing plate. The flexible clamp based on CNC machining can quickly, reliably and automatically clamp square plates on a small vertical machining center, and has the advantages of reducing the operation labor intensity, shortening the auxiliary time, improving the labor productivity, ensuring the product quality and the like.

Description

technical field [0001] The invention belongs to the technical field of automatic processing equipment, and in particular relates to a flexible clamp, in particular to a flexible clamp based on CNC processing. Background technique [0002] In the automation industry, the processing of square plate parts accounts for a high proportion. The sizes of these parts are different. The materials include steel parts, aluminum parts, stainless steel parts, non-metal parts, etc. There are many varieties, and they are basically single-piece small batches. . as attached figure 1 , There are through holes, step holes, milling slots and milling shapes processed on the square plate. [0003] There are three main methods of clamping traditional square plate parts. The first is clamping by clamping plate bolts, and the second is clamping by magnetic chucks (including electromagnetic chucks and permanent magnetic chucks) or pneumatic vacuum chucks. The third is to use the gluing process, whi...

AI Technical Summary

Problems solved by technology

The third is to use the gluing process, which is generally suitable for processing aluminum parts and non-metallic parts. Not only is the reliability poor, the glue will loosen when soaked in coolant, the processing accuracy is difficult to guarantee, and it is difficult to clean the glue after the workbench

It is time-consuming and labor-intensive if clamping with pressure plate bolts, please refer to the attached Figure 2-1 and 2-2 , the nut 3 and the pressure plate 4 will also be higher than the upper plane of the workpiece 6, and the length of the tool needs to be increased during processing, which will not only reduce the rigidity of the tool and reduce the life of the tool, but also limit the machining of the upper plane, that is, the clearance above the workpiece cannot be guaranteed. Directly affect processing efficiency and processing accuracy

Magnetic chuck clamping, see attached Figure 3-1 and 3-2 , then non-ferromagnetic materials cannot be clamped, and through holes cannot be processed on the workpiece

Pneumatic vacuum chucks cannot process through holes on the workpiece, and the use and maintenance costs are high

It can be seen that these two general-purpose fixtures have limitations and advantages and disadvantages in use, and it is difficult to meet the various needs of current processing.

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