34results about How to "High accuracy of angle adjustment" patented technology

The invention relates to the technical field of measurement, and discloses a lifting type measuring apparatus supporting tripod which comprises a support. Three expansion brackets are hinged to the bottom of the support. A fixed base is fixedly arranged on the top of the support. A round groove is formed in the center of the top of the fixed base. A drum is rotationally connected into the round groove through a first bearing. A fixed cylinder is arranged in the drum. The bottom end of the fixed cylinder is fixedly connected with the fixed base. A screw matched with the fixed cylinder is arranged in the fixed cylinder. A slider is fixedly connected with the bottom of the side wall of the screw. A guide notch matched with the slider is formed in the side wall of the fixed cylinder. A nut isfixedly connected with the inner top of the drum. The screw penetrates through the nut and is in threaded connection with the nut. The top end of the screw is connected with an apparatus placing rack.The height of the measuring apparatus can be adjusted by rotating the drum to move the screw up and down, different heights can be conveniently measured, the height can be easily and conveniently adjusted, there is no need to adjust the length of the expansion brackets, and the measuring efficiency can be easily improved.

The invention provides a heating angle adjusting device for a variable-cross-section stabilizer rod. The end part of a rod piece has a variable cross section. The thin rod piece angle adjusting device comprises an angle identification mechanism, an angle adjusting mechanism and a control mechanism, wherein the control mechanism controls the angle adjusting mechanism to rotate the thin rod piece, the angle identification mechanism senses the projected area of the two ends of the thin rod piece, and when the projected area reaches a set standard, a far-infrared sensor sends stopping information to the angle adjusting mechanism, and the angle adjusting mechanism stops working. Compared with the prior art, the angle adjusting device has the advantages that the far-infrared sensor senses the projected area of the end parts of the thin rod piece, and the angle can be automatically adjusted through the angle adjusting mechanism so as to meet the optimal heating angle requirement.

The invention relates to a steel-rail lateral monoclinic seamless welding surface cutting device and a control method. The cutting device is characterized in that a band saw blade is taken as a cutting tool which can cut two lateral monoclinic sections with equal angles, and the cutting device is composed of a steel-rail pressing structure, a monoclinic band saw cutting structure, a cutting hydraulic system, a control circuit system and the like; the two cut steel rails are positioned and clamped through the steel-rail pressing structure, so that accurate angle and stability in cutting can be guaranteed; a horizontal gantry structure is adopted in the monoclinic band saw cutting structure so as to mainly perform lateral monoclinic angle welding plane cutting on the steel rails; the cutting hydraulic system drives feed movement in time of pressing and cutting; the control circuit system controls smooth implementation in the whole process of pressing and angle cutting. By the cutting device, two monoclinic welding sections can be welded together by one-step cutting, so that the cutting device has the advantages that cutting angle is accurate, cutting efficiency is high, rigidity is good, operation is stable, the band saw blade is long in service life, quality of section cutting is good, and the like.

A slope-adjustable slope experimental device comprises a control mechanism, a slope surface workbench and a slope adjusting mechanism. The control mechanism is composed of a controller, a control system and a stepper motor drive system. The slope surface workbench comprises a surface plate and two sloping plates. The slope adjusting mechanism comprises a bottom groove, tooth-like tracks, a gear and a sliding block mechanism. The bottom groove is provided with a support pillar for supporting the surface plate, and a boss is arranged in the bottom groove. There are two tooth-like tracks which are parallelly arranged up and down in the length direction of the bottom groove, wherein one of the tracks is slidingly arranged on the boss. The gear is arranged between the two tooth-like tracks and is driven by a stepper motor in the stepper motor drive system after engaged with the two tooth-like tracks. The sliding block mechanism is composed of a sliding block and a chute which is arranged on the sloping plate and used for letting the sliding block slide. The sliding block is movably connected to one end of the corresponding tooth-like track. The device provided by the invention has an elaborate structure, is convenient to operate, has high angle adjustment accuracy and is especially applicable to slope experiments, in which height of a slope surface is required to be unchanged.