Height adjusting device for optical detection

Abstract

The invention discloses a height adjusting device for optical detection. The height adjusting device for optical detection comprises a detection frame, a detection platform which is arranged in the front of the detection frame and installed on a guide rail, a pulley block which is arranged on the upper portion of the detection frame and a balance weight which is arranged in the rear of the detection frame; the central of the balance weight is provided with a through hole; the through hole of the balance weight is embedded into a straight rod; two ends of the balance weight are connected to one ends of a first steel wire rope and a second steel wire rope; the other ends of the first steel wire rope and the second steel wire rope are connected to two ends of the detection platform through the pulley block; a linear bearing is arranged between the through hole of the balance weight and the straight rod; the linear bearing can vertically move along the straight rod; a transition block is arranged between a moving block of the linear bearing and the through hole of the counter weight block; the transition block is connected with the moving block through a first bolt. The height adjusting device for optical detection has the advantages of reducing the labor intensity of operators, being smooth in operation and good in balance performance, having an automatic adjusting function, avoiding the counter weight block from swinging, enabling stress of the steel wire ropes to be uniform and guaranteeing the height detection efficiency and the repeatability of detection data.

Description

technical field [0001] The invention relates to an optical detection device, in particular to a height adjustment device for optical detection. Background technique [0002] The high-precision laser interferometer measurement process often has a lifting detection platform. When an object is running on parallel slide rails, it must face two problems: first, the balance problem during the sliding process of the object, especially in the conduction Under the premise that there is an error in the traction structure. Secondly, due to the weight of the object itself, in the process of running up and down, it is necessary to apply external force to promote its operation. The heavier the object, the greater the external force applied, which will inevitably bring smooth operation of the object and increase the number of operators. Labor intensity and other issues. Especially in the measurement process of high-precision laser interferometer, it is necessary to ensure the detection e...

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