Device and method for inspecting openings of a powder metallurgy disk body with multiple openings

A device for inspecting openings of a powder metallurgy disk body with multiple openings comprising a workbench (5), wherein an arch frame (6) is fixedly provided on the workbench (5), an inspection unit (7) for inspecting depth and width of openings (4) in a powder metallurgy disk body (1) is arranged on the arch frame (6), a positioning and ejection mechanism (8) for positioning and ejecting the powder metallurgy disk body (1) is also arranged on the workbench (5), and the positioning and ejection mechanism (8) is arranged directly below the inspection unit (7);

• the inspection unit (7) comprises a lifting cylinder (9) fixedly mounted on a top surface of the arch frame (6), wherein a piston rod of the lifting cylinder (9) penetrates downwardly through the arch frame (6), a connecting plate (10) is fixedly mounted on an extended end, a horizontally arranged double-acting cylinder (11) is fixedly mounted on a bottom surface of the connecting plate (10), rods (12) are welded to two piston rods of the double-acting cylinder (11), lateral micro switches (13) are fixedly mounted on inner side walls of lower ends of the two rods (12), spring pieces A (14) of the lateral micro switches (13) are arranged inwardly, and rollers (15) are rotatably mounted on upper ends of the two rods (12) via pins;
• guide rods (16) are fixedly provided on a top surface of the connecting plate (10) and located at left and right ends of the connecting plate, and lifting plates (17) are slidably sleeved on the two guide rods (16), springs (18) are sleeved on the two guide rods (16), and upper and lower ends of the springs (18) are respectively fixedly provided on the lifting plates (17) and the connecting plate (10);
• the two lifting plates (17) are both extended outside the rods (12), and a floating rod (19) is fixedly provided on an extended end, vertical micro switches (20) are fixedly provided on bottom surfaces of the two floating rods (19), and spring pieces B (21) of the vertical micro switches (20) are arranged downward;
• the bottom surfaces of the two lifting plates (17) are both fixedly provided with arc-shaped protrusions (22), and the two arc-shaped protrusions (22) respectively abut against top surfaces of the two rollers (15) under elastic force of the springs (18).