CN2105699U

CN2105699U - Automatic slider for microscope specimen

Info

Publication number: CN2105699U
Application number: CN 91212049
Authority: CN
Inventors: 黄维恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-09
Filing date: 1991-01-09
Publication date: 1992-05-27

Abstract

The utility model relates to a full automatic slide pusher for the specimen of a microscope. A mechanical part has an X axial driving system which is composed of a step motor (8), gears (1), (2), and (3), and a gear rack (4), and a Y axial driving system which is composed of a step motor (9), a screw rod (5), and a screw nut sliding body (6), wherein, a support guiding rail of the gear rack (4) is fixed with a support guiding rail of the screw rod (5) by screws. A circuit part comprises an I/O interface circuit (1), a ring counter (2), a square wave generator (3), a turning switching circuit (4), a pulse apportion circuit (5), an electromotor driving circuit (6), and a travel switch.

Description

Automatic slider for microscope specimen

The utility model belongs to microscope sample slide automatic mobile device

When microscope amplified 100-400 times, the 0.1-0.04 square millimeter can only be seen in a visual field, and the sample slide of the millimeter of a 20x20 is all finished watching needs a mobile 400-1000 visual field.Move at present complete in hand twisting tooth bar push jack, push jack inequality like this, the under-enumeration chance is many, reviewer's fatiguability.Microscopic image Computer Processing and identification in addition also needs the full-automatic slider of microscope sample to realize robotization.

The purpose of this utility model is to use system controlled by computer to realize that microscope sample slide moves automatically.

Accompanying drawing 1 is the slider front view

Accompanying drawing 2 is the A-A cut-open view of accompanying drawing 1

Accompanying drawing 3 is the control circuit schematic diagram

Accompanying drawing 4 is single chip computer architecture figure

Below in conjunction with description of drawings the purpose of this utility model and embodiment.The utility model is made of machinery and circuit two parts.

Mechanical part is formed the X axis kinematic train by stepper motor (8), gear (1), (2), (3) tooth bar (4).Stepper motor (9), screw rod (5) nut gliding mass (6) are formed Y-axis to kinematic train.The support rails of the support rails of tooth bar (4) and screw rod (5) is screwed together.The Y-axis kinematic train is with the motion of X-axis kinematic train, and the front and back of Y-axis kinematic train motor are provided with two travel switch heart K1K2, and the both sides of slide folder (7) also is provided with two travel switch K3, K4.

Circuit part is by I/O interface circuit (1), ring counter (2), and square-wave generator (3), steering commutation circuit (4), pulse distributor (5), motor-drive circuit (6), travel switch (7) is formed.

Single-chip microcomputer adopts 8031,2732nd, and a kind of programmable read-only memory of cleaning can be imported machine code on single card microcomputer when the needs write-in program, write into program, when when not required, program is wiped in available ultraviolet ray irradiation, and the 74373rd, a kind of latch Fig. 4, the electric capacity of two 50P and quartz crystal are formed crystal oscillator, be input to XTAL and the XTAL2 end of CPU8031,8031 have four ports, it makes IO interface usefulness respectively, and application program is solidificated in 2732 chips.

The initial stepping of supposing print moves right, when print steps to the terminal point of travel switch (K4) to the right, slider is automatically print visual field of stepping forward, then again stepping left up to left lateral journey switch (K3) terminal point, a visual field readvances, stepping to the right again finishes up to the whole perimetries of print by this repetition.

Principle of work: after computing machine (or single-chip microcomputer) sends steering order, instruction is input to (1) in the I/O circuit by data line D0～D4, after the AND circuit decode in circuit, produce a clock signal clk and three control signal DRT and ENABLE, SLT.Clock signal is as the input signal of ring counter (2), and ENABLE is as the gating signal of pulse distributor (5), and/SLT then is used as the control signal of pulse distributor.Pulse-generating circuit under the effect of above-mentioned four signals (5) will produce six and clap the system pulse signal, and after motor-drive circuit (6) amplified, the electronics winding that directly acts on stepper motor rotated motor.Print is the automatic mobile visual field after motor-driven.The positional information of print by the travel switch (K1) in four orientation, front, rear, left and right (K2) (K3) (K4) directly feed back to the direction of motion that computing machine (or single-chip microcomputer) is controlled print by/four defeated lines of Bu～BD.

Automatic, manual two kinds of working methods that this slider has are switched and are finished by the switch among Fig. 3 (10).Print front, rear, left and right direction of motion during manual mode is by (11), (12), (13), (14) four button controls among Fig. 3.Under automatic working method, computing machine (IBM-PC or similar microcomputer) and two kinds of duties of Single-chip Controlling are arranged.During computer operating state, instruction is closed with reception with the biography of signal and is finished by parallel interface.D0 among Fig. 3～D4 signal wire is used for exporting necessary control signal, four of Bu-BD, 4 travel switches of input (K1) (K2) (K3) feedback signal (K4) so that the current location of computing machine " measurement " print, these inputs, output signal line are connected with printer interface on the computing machine, realize computer control.

Circuit of the present utility model is made up of following component

A I/O interface circuit is by 1/4 7404 not gates, and 1/4 7400 Sheffer stroke gates are formed;

The b ring counter is by 74175 d type flip flops, 1/4 7408 with door, 7432 or door form;

The c square-wave generator is by 7404 not gates, potentiometer, and diode, electric capacity is formed;

The d steering commutation circuit is made up of the two AND of 7451 2-;

The e pulse distributor is by 1/4 7404 not gates, and 7408 form with door;

The f motor-drive circuit is by resistance, triode, and diode, stepper motor is formed;

G travel switch circuit is by 7420 input end Sheffer stroke gate impact dampers, and 7400 Sheffer stroke gates are formed.

During the single-chip microcomputer duty, its software control block diagram is identical with computer operating state, adopts 8031 Single-chip Controlling program Solidifications in 2732 chips (EPROM).Among Fig. 4 among single-chip microcomputer INPUT interface and Fig. 3 BW～BD join, the D0～D4 among single-chip microcomputer OUT interface and Fig. 3 joins.

The utility model push jack is even, can omission, can alleviate reviewer's labour intensity, and particularly microscopic image Computer Processing and identification provide the means of robotization.

Claims

1, the full-automatic slider of a kind of microscope sample is characterized in that:

Mechanical part is formed the X axis kinematic train by stepper motor (8), gear (1), (2), (3) tooth bar (4), stepper motor (9), screw rod (5) nut gliding mass (6) are formed Y-axis to kinematic train, the support rails of the support rails of tooth bar (4) and screw rod (5) is screwed together

2, slider according to claim 1 is characterized in that:

The d steering commutation circuit is made up of the two AND of 7451 2-;

The e pulse distributor is by 1/4 7404 not gates, and 7408 form with door;