CN2908024Y - Digital controlled main shaft device - Google Patents

Abstract

The utility model relates to a numerical-control principal shaft device, which belongs to the lathe field of the mechanical industry. The new device comprises a principal shaft, an electric motor, a shaft joint and an industrial control microcomputer, which is characterized in that the electric motor is a switch magnetic resistance speed regulating type which is connected with the principal shaft through the shaft joint. The electric motor is connected with a controller as well, and the controller is connected with the industrial control microcomputer. A gearbox, a clutch and a brake are all saved. The utility model has the advantages of simply structure, low cost, high reliability, high stability, high efficiency and long service life as well as digitizing and steeples speed regulation.

Description

The numerical control main axle device

Technical field

The utility model relates to a kind of numerical control main axle device, belongs to the mechanical industry machine tool field.

Background technology

Drilling machine, milling machine, building-block machine, machining center etc. are because of the needs speed change, and are mostly to connect gearbox by motor, carry out step speed regulation, often by clutch and the auxiliary control of brake, and complex structure, cost height.In the recent period the machine tool chief axis with variable frequency regulating speed control develops, but its generate heat when having low speed, moment is little, speed adjustable range is narrow,, shortcoming such as energy consumption is big, efficient is low, control mode is complicated, operational reliability is low.Will reverse when building-block machine and Cutter Body Processing with Machining Center screwed hole, also be the difficult problem that needs solve.

The utility model content

The technical problems to be solved in the utility model is: provide a kind of lathe that makes to save transmission system, without gearbox, clutch and brake, cost simple in structure is low, the reliability height, stability is high, high efficiency, long service life, realize digitlization stepless speed regulation, the rotating that can the microcomputer-based intelligent numerical control main axle and the numerical control main axle device of rotating speed solve the insoluble for a long time technical barrier in this area.

The technical scheme that its technical problem that solves the utility model adopts is: this numerical control main axle device, comprise main shaft, motor, shaft coupling and industry control microcomputer, it is characterized in that: motor adopts magnetic resistance switch speed-adjustable motor, magnetic resistance switch speed-adjustable motor links to each other with main shaft by shaft coupling, magnetic resistance switch speed-adjustable motor connects controller, and controller connects the industry control microcomputer.By the magnetic resistance switch speed-adjustable motor drive shaft is set, pass through computing formula by the industry control microcomputer, a plurality of cutting speeds with each work step of setting calculate required a plurality of rotating speed, the motion of gauge tap magneto resistance speed-regulating motor, realize that the machine tool chief axis digitlization is stepless regulated, reach the purpose that the machine tool chief axis motion can change according to the different of the difference of the difference of institute's converted products, technological requirement and material.

Magnetic resistance switch speed-adjustable motor U1 connects controller U2, and controller U2 connects industry control microcomputer U3, and the industry control microcomputer connects keyboard U4 and display screen U5.

The utility model compared with prior art, the beneficial effect that the utility model had is: this main shaft device is installed in drilling machine, milling machine, building-block machine, machining center etc. because of on the equipment that needs speed change, makes lathe save transmission system, without gearbox, clutch and brake, simple in structure, the reliability height, stability is high, long service life, it is good also to have starting performance, and electrical network is not had impact, and low cruise does not generate heat, the efficient height, energy-conservation; Cleaning, easy to installation and maintenance, parameter on-line setup and editor, the text prompt man-machine interface is operated advantages such as directly perceived.

Description of drawings

Fig. 1 is the frame for movement schematic diagram of main shaft device;

Fig. 2 is the circuit theory diagrams of main shaft device.

The specific embodiment

Fig. 1-2 is a most preferred embodiment of the present utility model: wherein: 1 U1 magnetic resistance switch speed-adjustable motor, 2 shaft couplings, 3 main shafts, 4 bearings, 5 lathe beds;

U2 controller U3 industry control microcomputer U4 keyboard U5 display.

Below in conjunction with Fig. 1-2 numerical control method of the present utility model and main shaft device are described further:

As shown in Figure 1: motor 1 adopts magnetic resistance switch speed-adjustable motor, and magnetic resistance switch speed-adjustable motor 1 output shaft connects main shaft 3 by shaft coupling 2.

As shown in Figure 2, magnetic resistance switch speed-adjustable motor U1 connects controller U2, and controller U2 connects industry control microcomputer U3, and the industry control microcomputer connects keyboard U4 and display screen U5.

The numerical control method of machine tool chief axis of the present utility model is: motor adopts magnetic resistance switch speed-adjustable motor, the data that provide according to input equipment, through the computing of industry control microcomputer, the action of gauge tap magneto resistance speed-regulating motor, the action of magnetic resistance switch speed-adjustable motor drive shaft.Magnetic resistance switch speed-adjustable motor comprises motor and controller, and power supply enters motor by controller, controller control motor action.The data that input equipment provides comprise the positive and negative transcoding Q of i work step _i, cutting speed v _iWith the cutter outer diameter D _iCutter is installed on the main shaft by chuck.

Computing is meant that the industry control microcomputer is according to formula through the industry control microcomputer $Q_i=\left\{\begin{array}{c}1\\ 0\end{array},n_{\mathrm{ei}}=\frac{{60v}_i}{\mathrm{\π}{D}_i}\right.$ Calculate the rotation speed n of required magnetic resistance switch speed-adjustable motor _e, v is that cutting speed, D are cutter external diameter, n in the formula _eBe magnetic resistance switch speed-adjustable motor rotating speed r/min.

The action of magnetic resistance switch speed-adjustable motor drive shaft is meant that magnetic resistance switch speed-adjustable motor connects main shaft by shaft coupling.

Operation principle is as follows:

The computing formula of this numerical control method main shaft is as follows

$Q_i=\left\{\begin{array}{c}1\\ 0\end{array}\right.---\left(1\right)$

$n_{\mathrm{ei}}=\frac{{60v}_i}{\mathrm{\π}{D}_i}---\left(2\right)$

Q in the formula _iBe positive and negative transcoding, the v of i work step _iBe cutting speed m/s, D _iBe cutter external diameter m, n _eBe magnetic resistance switch speed-adjustable motor rotating speed r/min.

On the industry control microcomputer, import the desired cutting speed of each work step processing technology during work and turn to the required rotation speed n of industry control microcomputer (1)-(2) calculating by formula _e, and then gauge tap magneto resistance speed-regulating motor 1 U1 action, 3 actions of magnetic resistance switch speed-adjustable motor 1 U1 drive shaft.

Industry control microcomputer U3 can select IPC610-P4 2.0/256M/40G workbench for use, and also unit with computing function such as available microprocessors (CPU), single-chip microcomputer, programmable calculator, Programmable Logic Controller (PLC) replaces.Display screen U5 can select touching display screen for use.Can be integrated into a casing to display screen, keyboard, industry control microcomputer and controller.

The utility model can be used the lathe kind equipment.

Claims (2)

1, numerical control main axle device, comprise main shaft, motor, shaft coupling and industry control microcomputer, it is characterized in that: motor adopts magnetic resistance switch speed-adjustable motor, magnetic resistance switch speed-adjustable motor links to each other with main shaft by shaft coupling, magnetic resistance switch speed-adjustable motor connects controller, and controller connects the industry control microcomputer.

2, numerical control main axle device according to claim 1 is characterized in that: magnetic resistance switch speed-adjustable motor U1 connects controller U2, and controller U2 connects industry control microcomputer U3, and the industry control microcomputer connects keyboard U4 and display screen U5.