Clamp used for drilling cuttings sample of irregular sample

Abstract

The invention provides a clamp used for drilling a cuttings sample of an irregular sample. The clamp comprises a base plate and three clamping members. A positioning hole is arranged in the center of the base plate, a positioning pin is installed on the positioning hole of the base plate, the clamp used for drilling the cuttings sample of the irregular sample is fixed on a sample seat of a bench drilling machine by the positioning pin, an inner slot is arranged in the base plate, and one end of the inner slot is provided with an opening. The clamping members comprise support frames, pressing plates and fixing pieces, the three clamping members are uniformly distributed in the inner slot of the base plate by 120 degrees by the support frames, and the pressing plates are pressed on the upper surface of the irregular sample and the support surfaces of the support frames by the fixing pieces. The clamp used for drilling the cuttings sample of the irregular sample can be used on a sample platform of the common bench drilling machine, therefore, the cuttings sample of the irregular sample can be effectively made, the number of the drilled cuttings sample can be improved, the pollution of the cuttings sample can be reduced, and the defect that the sample can not be fixed by a bench drill can be overcome.

Description

technical field [0001] The invention relates to a fixture, in particular to a special fixture for cooperating with an ordinary bench-top drilling machine to prepare irregular sample chip samples. [0002] Background technique [0003] Drilling chip samples are mainly used for the following chemical detection: (1) For analytical instruments that can only analyze liquid samples, such as inductively coupled plasma emission spectrometer ICP, atomic absorption spectrometer AA, atomic fluorescence photometer AES, due to their For solid samples, the solution prepared by chemical reaction must be used to carry out accurate detection. Therefore, the weighing amount of solid samples generally requires ≤0.2 grams, so only drilling chip samples can be used for accurate sampling and testing; (2) Infrared carbon-sulfur meter CS, etc., due to the limitations of their instrument structure and working principle, can only accurately detect drilling chip samples; The requirement is ≤0.2 gram...

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, in order to effectively prepare chip samples for such irregular samples, increase the number of drilling chip samples, reduce chip sample pollution, and overcome the inadequacy that bench drills cannot fix samples, so the present invention provides a kind of irregular sample The fixture for drilling chip samples can be used on the sample stage of an ordinary desktop drilling machine. To achieve this purpose, the present invention provides a fixture for drilling chip samples for irregular samples, including a chassis and three clamping members. There is a positioning hole in the center of the chassis, and a positioning pin is installed on the positioning hole of the chassis. The fixture for drilling chip samples of the irregular sample is fixed on the sample holder of the desktop drilling machine through the positioning pin. The chassis has an inner groove, and one end of the inner groove is There is an opening, and the clamping member includes a bracket, a pressing plate and a fixing piece, and the three clamping members are equally divided into the inner groove of the chassis by 120° through the bracket, and there is a moving groove on the pressing plate, so The fixing part is installed in the moving groove, and the pressing plate is pressed on the upper surface of the irregular sample and the supporting surface of the bracket through the fixing part

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