A kind of sclerometer support being convenient to regulateTechnical field
The present invention relates to measuring equipment field, in particular to a kind of sclerometer support being convenient to regulate.
Background technology
Sclerometer is for test object, a kind of instrument of material hardness, sclerometer is generally fixed on support and uses, Shore durometer utilizes test force effect by vertical for pressing pressing in sample surface in use, when pressing foot surface to fit completely with specimen surface, record the extension elongation that pressing tip surface presses sufficient plane relatively, Shore durometer number can be obtained by calculating, existing sclerometer regulating device generally comprises adjuster bar, be set in the sclerometer holder on adjuster bar, the position of sclerometer holder is manually regulated to change scleroscopic height, but whether scleroscopic pressure foot surface is fitted with specimen surface and is substantially judged by human eye, cause measuring error larger, and manual adjusting operation is complicated, easily cause sclerometer crooked.
Summary of the invention
The object of the present invention is to provide a kind of sclerometer support being convenient to regulate, easily crooked during to solve existing sclerometer bracket adjustment, the problem that Durometer measurements precision is low.
For realizing the object of the invention, the technical scheme adopted is: a kind of sclerometer support being convenient to regulate, comprise objective table, be vertically installed in adjuster bar on objective table and for fixing scleroscopic holder, adjuster bar is hollow structure, be provided with automatic hoisting mechanism in adjuster bar, holder is fixedly connected with automatic hoisting mechanism; Wireless distances sensor is embedded with in sclerometer pressure foot.
Further, automatic hoisting mechanism comprises screw mandrel and controller, and described screw mandrel one end is connected with motor, and the other end is provided with limited block, and limited block is provided with limit switch, and screw mandrel is arranged with the sliding sleeve be engaged with wire rod thread.
Further, holder is fixedly connected with sliding sleeve.
Further, limit switch, motor and wireless distances sensor are electrically connected with controller respectively.
The invention has the beneficial effects as follows, pressure foot arranges wireless distances sensor, accurately can judge whether pressure foot fits with specimen surface, then control motor and whether close, improve measuring accuracy; Adopt screw mandrel, sliding sleeve and group of motors synthesis automatic hoisting mechanism, can drive that sclerometer is stable, uniform motion, guarantee accuracy and the consistance of Hardness results.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Fig. 1 shows the sclerometer support being convenient to regulate provided by the invention, comprise objective table 1, be vertically installed in the adjuster bar 7 on objective table 1 and the holder 10 for fixing sclerometer 11, it is characterized in that: adjuster bar 7 is hollow structure, automatic hoisting mechanism is provided with in adjuster bar 7, holder 10 is fixedly connected with automatic hoisting mechanism, and automatic hoisting mechanism can drive holder 10 to move up and down; Be embedded with wireless distances sensor 12 in the pressure foot 14 of sclerometer 11, in order to make measurement more accurate, the probe of wireless distances sensor 12 should be in same plane with the bottom surface of pressure foot 14.
Further, automatic hoisting mechanism comprises screw mandrel 6 and controller 2, and described screw mandrel 6 one end is connected with motor 4, only can control motor 4 forward, reverse or stop by peripheral hardware switch 3; Screw mandrel 6 other end is provided with limited block 9, limited block 9 is provided with limit switch 8, and screw mandrel 6 is arranged with the sliding sleeve 5 with screw mandrel 6 threaded engagement, when sliding sleeve 5 touches limit switch 8, and can disable motor 4; Sliding sleeve 5 is fixedly connected with holder 10.
Further, limit switch 8, motor 4 and wireless distances sensor 12 are electrically connected with controller 2 respectively.
Principle of work of the present invention is: open peripheral hardware switch 3, motor 4 rotating band movable wire bar 6 rotates, thus sliding sleeve 5 is moved up and down along screw mandrel 6, then sclerometer 11 moves up and down thereupon, when to detect with specimen surface distance be zero to wireless distances sensor 12, by controller 2 disable motor 4, stop sclerometer 11 to move, now namely calculate hardness number by the displacement of pressing 13.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.