High-precision two-part flat chuck device and processing apparatus installed there-with

A high-precision two-part flat chuck device, comprising a base (1) a cylinder (2), a sliding plate (3), a first clamping plate (4) and a second clamping pate (5), wherein a piston rod (021) of the cylinder (2) is connected with the sliding plate (3);

• precision sliding rails (6) are arranged at two sides of the base (1) and two sides of the sliding plate (3) are respectively matched with the precision sliding rails (6) in a sliding manner, an accommodating groove (7) is arranged in a middle part of the sliding plate (3);
• the first clamping plate (4) and the second clamping plate (5) are symmetrically distributed in the accommodating groove (7) along a center of the sliding plate (3);
• a spring (8) is arranged between the first clamping plate (4) and the second clamping plate (5);
• side surfaces of the first clamping plate (4) and the second clamping plate (5) are inclined planes (9);
• rollers (10) are arranged at two sides of the sliding plate (3);
• the rollers (10) at the two sides are respectively matched with the inclined planes (9) of the first clamping plate (4) and the second clamping plate (5) in an extrusion manner;
• and chucks (11) matched with each other are arranged at end parts of the first clamping plate (4) and the second clamping plate (5).