Full-automatic three-dimensional precision positioning motion sample injector

Abstract

The invention provides a full-automatic three-dimensional precision positioning motion sample injector which comprises a Y-axis movement assembly, an X-axis movement assembly, a Z-axis movement assembly and a tray, wherein the Y-axis movement assembly comprises a Y-axis movement base, a Y-axis left guide rail, a Y-axis left guide rail slider, a Y-axis right guide rail, a Y-axis right guide rail slider and a Y-axis drive mechanism; the Y-axis left guide rail and the Y-axis right guide rail are connected with the Y-axis movement base; and the Y-axis left guide rail is connected with the Y-axis drive mechanism. The X-axis movement assembly and the Z-axis movement assembly comprise corresponding movement bases, guide rails, guide rail sliders and drive mechanisms. The X-axis movement base is suspended on the Y-axis movement base through connecting the Y-axis left guide rail slider and the Y-axis right guide rail slider, the Z-axis movement base is suspended on the X-axis movement base through connecting the X-axis guide rail slider, and the tray is connected with the Z-axis guide rail slider. The full-automatic three-dimensional precision positioning motion sample injector has the advantages of small occupation space, high position precision, stable performance and safety in operation, and can be applied to the accurate positioning of a sample injector device of analytical instruments in the fields such as medical treatment and public health, biological engineering, chemical pharmacy, chemical engineering analysis and the like.

Description

technical field [0001] The invention relates to a full-automatic three-dimensional precision positioning motion sample injector which can be widely used in the high-precision positioning of analytical instruments, and can be applied in the fields of medical treatment and sanitation, biological engineering, chemical pharmacy, chemical analysis and the like. The samples of many analytical instruments all need large-scale, automatic sampling, and the positioning of the sampler device is required to be accurate and the space occupied is small. The above fields are the main occasions for the application of the device of the present invention. Background technique [0002] High-precision, fully automatic sample injection devices are widely used in biology, chemistry, medical and other fields for sample injection. At present, most instruments adopt the superimposed design method to design the three-dimensional motion sampling device. The main feature is that the motion mechanisms o...

AI Technical Summary

Problems solved by technology

At present, most instruments adopt the superposition design method to design the three-dimensional motion sampling device. The main feature is that the motion mechanisms of each dimension are superimposed from the bottom layer upwards. If the protective device is added, the reliability of the sampling device will be reduced and the volume will increase, which is not conducive to the miniaturization of the analytical instrument and the improvement of the reliability of the analytical instrument.

Most superimposed sampling devices connect the motor output shaft and the lead screw through a synchronous pulley. Although this connection method can save space, the positioning accuracy of the synchronous belt is low, and with the prolongation of use time, the synchronous belt is easy to loosen, and the positioning accuracy is further improved. This has a serious impact on the performance of analytical instruments that require high positioning accuracy

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