CN2596512Y

CN2596512Y - Computer control precise X-Y mobile station

Info

Publication number: CN2596512Y
Application number: CN 02291593
Authority: CN
Inventors: 孙泽明; 张金波; 王福生
Original assignee: Beijing General Research Institute for Non Ferrous Metals
Current assignee: Beijing General Research Institute for Non Ferrous Metals
Priority date: 2002-12-20
Filing date: 2002-12-20
Publication date: 2003-12-31
Anticipated expiration: 2012-12-20

Abstract

The utility model discloses a precise X-Y mobile station controlled by a computer. The utility model is composed of a computer control circuit, two X-Y step electric motors, and a mobile station body, wherein, the mobile station body is composed of an upper mobile metal station, a middle mobile metal station and a lower positioning metal station. Guide rails are arranged between each metal station surface, and are used for the upper station surface and the lower station surface to mutually move. The direction of the guide rail between the upper station surface and the middle station surface is mutually vertical with the guide rail between the middle station surface and the lower station surface. Springs which are used for returning are arranged between each station surface. Spacing switches are arranged on the proper position of each station surface. The computer sends out a pulse signal through an interface board, the pulse signal drives the two X-Y step electric motors after amplified by power of a driving module, and the two X-Y step electric motors push the corresponding mobile metal station to move respectively through a screw rod mechanism. The computer controls the precise X-Y mobile station to stably travel, and the walk position is accurate.

Description

The accurate X-Y transfer table of computer control

Technical field

The utility model relates to the accurate X-Y transfer table of a kind of computer control.

Background technology

Sample stage is the special arrangement of carrying sample in the test job, owing in substantive test work, all need the geometric position on the sample is accurately located, and in test process, also to steadily move, therefore design, the manufacturing to sample stage all has high requirements, existing sample stage all is type hand mostly, the automatic sample platform of import instrument costs an arm and a leg, and manual sample platform defective is: can not precision positioning in the continuous coverage process, and efficiency of measurement is low.

Summary of the invention

The purpose of this utility model provides the accurate X-Y transfer table of the wide computer control of a kind of measuring accuracy and efficient height and test specification.

For achieving the above object, the utility model is taked following design proposal: the accurate X-Y transfer table of a kind of computer control, it is by computer control circuit, X-Y two stepper motors and transfer table stage body are formed, described transfer table stage body is by last, middle level moving metal platform and lower floor's location metal platform constitute, keep supplying between each metal table top, the guide rail that following two table tops move mutually, go up with the middle level table top between guide rail with in the lower floor table top between guide rail that direction is set is vertical mutually, spring for return is set between each table top, the appropriate position of each the table top side bit switch of limiting, computing machine sends pulse signal by the I/O card on the PCI slot, through power amplification rear drive X-Y two stepper motors of driver module, two stepper motors respectively promote corresponding moving metal platform by screw body and move.

The utility model has the advantages that: advance steadily, walk accurately applied range.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model transfer table STRUCTURE DECOMPOSITION synoptic diagram

Fig. 3 is the built-in ball skateboard synoptic diagram of transfer table guide rail

Fig. 4 is the utility model circuit theory diagrams

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing

As shown in Figure 1 and Figure 2, the accurate X-Y transfer table of the utility model computer control is made up of computer control circuit, X-Y two stepper motors, transfer table 1.

Described transfer table 1 is made of last, middle level moving metal platform 101,102 and lower floor's location metal platform 103, each metal table top is formed with the V-way 2 that moves mutually for upper and lower two table tops by being in contact with one another the end face that slides, this V-way can make the mutual sliding contact surface minimum of upper and lower two table tops, the suffered friction force that guarantees to slide is less, is beneficial to smooth sliding; Go up with the middle level table top between guide rail with in the lower floor table top between guide rail that direction is set is vertical mutually.By synoptic diagram as seen, metal platform 101 can relatively move in the Y direction along guide rail with metal platform 102, and metal platform 102 and metal platform 103 relatively move at directions X.Two springs 4,5 for return are set between the following table on each, to guarantee that sample stage is subjected to certain pulling force in moving range, reduce into hysterisis error, maintenance operates steadily, it is provided with the position can be located at the appropriate position between two table tops (position shown in Fig. 2 is signal just, not limited by this) up and down as required.The promotion of sample stage is finished (prior art by stepper motor and screw mandrel, do not draw among the figure), adopting the pitch of screw mandrel in the present design is 0.5 millimeter, per step rotational angle 0.45 degree of stepper motor, i.e. 800 pulses make the stepper motor output shaft rotate a week, screw mandrel moves 0.5 millimeter, also we can say the step pitch 0.625m of sample stage.The appropriate position of each the table top side bit switch 6 of limiting, when moving displacement exceeded the stroke of sample stage, limit switch cut off step motor drive module primary power, can effectively protect the stepper motor nonoverload.

As shown in Figure 3, be equipped with ball slide plate 3 between V-type rail between each metal table top, it is to offer a round 301 on a slide plate that is suitable for settling in the V-type rail, settles ball 302 in the hole, like this, ball relies on the slide plate location, can overcome the defective in the prior art (jam easily takes place during rolling single row's ball each other), upper and lower two table tops rely on ball to slide, reduce the friction force of each slipping plane, guaranteed that sample stage moves steadily.

Shown in Figure 4 is the utility model control circuit functional-block diagram, and its course of work and principle are:

Computer control is sent pulse signal by Computer I/O plate input, output channel, and through power amplification rear drive X-Y two stepper motors of driver module, two stepper motors respectively promote corresponding moving metal platform by screw body and move.

Computer I/O plate is selected 24 tunnel inputs of 4202 standard models and 24 tunnel output I/O plates for use, and every paths light is isolated.

Computing machine can lock stepper motor by program, and transfer table can not be moved, and can protect the transfer table can maloperation so effectively.

In the present embodiment, pulse step machine operation pulsed frequency is 750-1750HZ, by the software adjustment, makes I/O plate output signal be not less than 1600HZ.Motor output torque 500Ncm, speed that can 1mm/s steadily promotes the automatic sample platform.

In promoting the transfer table traveling process, need than high thrust, computing machine sends pulse signal through after the power amplification of driver module by interface board, and drive stepping motor adopts the 12V direct supply, output rating is 30W, and computing machine sends the forward and reverse operation of instruction may command stepper motor.The optional market standard commodity of step motor drive module are the common power amplifier,

Computing machine can be left signal to the outside transmission by the delivery outlet of I/O plate; One road power control relay of leaving on the signal controling stepping motor driver module wherein.When the sample automatic station stops, at any time by the primary power on the solid-state relay disconnection driver module.Simultaneously, the two-way in addition that the delivery outlet of computing machine by the I/O plate sends to the outside leave signal can be to X-Y two step motor drive modules, to realize forward and reverse control to stepper motor.

Physical circuit is designed to prior art and can realizes, no longer describes in detail herein,

The utility model not only can be used for the test process of the microhardness testers of metallurgy industry, also can be applied in widely test, control and processing equipment aspect, mobile accuracy can reach ± 0.005mm.

Claims

1, the accurate X-Y transfer table of a kind of computer control, it is by computer control circuit, X-Y two stepper motors and transfer table stage body are formed, it is characterized in that: described transfer table stage body is by last, middle level moving metal platform and lower floor's location metal platform constitute, the guide rail that moves mutually for two table tops is arranged between each metal table top, go up with the middle level table top between guide rail with in the lower floor table top between guide rail that direction is set is vertical mutually, spring for return is set between each table top, the appropriate position of each the table top side bit switch of limiting, computing machine sends " 0 " by the I/O interface board, " 1 " signal, through power amplification rear drive X-Y two stepper motors of driver module, two stepper motors respectively promote corresponding moving metal platform by screw body and move.

2, the accurate X-Y transfer table of computer control according to claim 1, it is characterized in that: the guide rail between described each metal table top is a V-type rail.

3, the accurate X-Y transfer table of computer control according to claim 1 is characterized in that: be equipped with the ball slide plate in V-type rail.