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The square plate horizontal quick clamp is designed based on the mechanical principle of the double rocker mechanism in the planar four-bar mechanism. Its basic structure is composed of four components: connecting rod, frame and two connecting rods. It is a comparative hasp lock.

When the two hinge points of the connecting rod and the connecting rod and the hinge point of one of the connecting rods and the frame are in a straight line, the mechanism is in the dead center position. At this time, the pressed workpiece cannot loosen the indenter no matter how much reaction force there is (except for destructive reaction force). This is the dead center clamping principle in mechanical mechanics.

In order to avoid the influence of external load changes and mechanical vibration during use, the square plate horizontal fast clamp is designed to move the middle hinge point slightly to the inside of the line connecting the other two hinge points to ensure that it can handle large central tightening forces. down, always keep the clamp mechanism locked in a stable state without loosening.

The square plate horizontal quick clamp is a subcategory of tool clamps. The fixture is a device used to fix the processing object in the mechanical manufacturing process so that it can occupy the correct position for construction or inspection.

The materials used for square plate horizontal fast clamps include a wide range, from general carbon structural steel, alloy structural steel, carbon tool steel, alloy tool steel, high-speed tool steel, stainless steel, maraging steel to carbide, Refractory alloys, high-temperature alloys, non-ferrous metals, etc. can all be used, among which the main fixture steels are alloy tool steels. With the development of my country's fixture industry, higher new requirements have been put forward in terms of quantity, quality, variety and performance of fixture materials, and the fixture material market has also developed.

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