CN204536822U

CN204536822U - A kind of magnetic coder electronic cam controller

Info

Publication number: CN204536822U
Application number: CN201520243745.0U
Authority: CN
Inventors: 郭俊
Original assignee: ZERON (NANJING) AUTOMATIC SYSTEM CO Ltd
Current assignee: ZERON (NANJING) AUTOMATIC SYSTEM CO Ltd
Priority date: 2015-04-21
Filing date: 2015-04-21
Publication date: 2015-08-05
Anticipated expiration: 2025-04-21

Abstract

Disclosed in the utility model, a kind of magnetic coder electronic cam controller comprises single-chip microcomputer, connects the magnetic coder of single-chip microcomputer, liquid crystal display, numeral method unit, horse race lamp unit, power supply, storage unit, key-press input unit and single-chip microcomputer IO interface respectively.Wherein, magnetic coder comprises angular transducer chip AS5040, disc one side bipolar magnet and rotating shaft, rotating shaft is passed disc one side bipolar magnet and is vertically fixed on the middle position of angular transducer chip AS5040, and disc one side bipolar magnet can around axis of rotation.Adopt this kind of magnetic coder greatly to reduce costs, and the resistance to environment of dependable performance is strong.Adopt charactron and OLED display screen, be more applicable to site environment, make client more acceptant.

Description

A kind of magnetic coder electronic cam controller

Technical field

The utility model relates to automated machine equipment, particularly a kind of electronic cam controller.

Background technology

Existing electric cam on market, with rotary transformer, or photoelectric encoder is as angular transducer.Rotary transformer because of itself price high, volume is large, and decoding is complicated, generally needs special decoding chip.And photoelectric encoder because of its resistance to environment poor, be easily subject to electromagnetic interference (EMI), the feature that the life-span is short.As Nanjing Estun Automation Co., Ltd. produces a kind of punch press electric cam, its inner DSP that adopts is as controller, the decoding of band rotary transformer or photoelectric encoder, because it uses DSP as controller, rotary transformer is as angular transducer, therefore its volume is excessive and cost is higher, when working more severe, its rotary transformer be easily interfered and the life-span shorter.

Summary of the invention

Goal of the invention: for above-mentioned prior art, proposes a kind of magnetic coder electronic cam controller, reduces electromagnetic interference (EMI) to its impact and reduces the volume of controller.

Technical scheme: a kind of magnetic coder electronic cam controller, comprise single-chip microcomputer, connect the magnetic coder of described single-chip microcomputer, liquid crystal display, numeral method unit, horse race lamp unit, power supply, storage unit, key-press input unit and single-chip microcomputer IO interface respectively; Wherein, described magnetic coder comprises angular transducer chip AS5040, disc one side bipolar magnet and rotating shaft, described rotating shaft is passed disc one side bipolar magnet and is vertically fixed on the middle position of angular transducer chip AS5040, and described disc one side bipolar magnet can around axis of rotation; Described single-chip microcomputer IO interface is for connecting outside servomotor or stepper motor.

As preferred version of the present invention, between described single-chip microcomputer and single-chip microcomputer IO interface, be provided with photo-coupler.

Beneficial effect: magnetic coder electronic cam controller of the present utility model has magnitude of angular velocity/angle value display; summit is located; cam sets; produce counting and arrive output; bottom dead centre sets, the setting of positive/negative turn of angular transducer, systematic parameter cryptoguard; the functions such as system exception warning, it not only has the function of electric cam.Especially adopt magnetic coder greatly to reduce costs, and the resistance to environment of dependable performance is strong.Adopt charactron and OLED display screen, be more applicable to site environment, make client more acceptant.Wherein, magnetic coder comprises angular transducer chip AS5040, disc one side bipolar magnet and rotating shaft, integrated Hall element, simulation leading portion and data-signal processing capacity is integrated with in chip, Hall element distributes around chip middle position, and produce the voltage that one characterizes chip surface magnetic field, by coordinating with the bipolar magnet rotated, adopt rotatory current Hall technology, thus the Distribution of Magnetic Field of chip surface can be detected, after computing, obtain angle information.This kind of magnetic coder, owing to adopting touchless detection method, has the advantages that resistance to environment is good and reliability is high, can tolerate magnet positions and depart from, therefore be applicable to the place of work under bad environment, has the advantage of life-span length.

Accompanying drawing explanation

Fig. 1 is magnetic coder electronic cam controller structural representation;

Fig. 2 is magnetic coder structural representation.

Embodiment

Below in conjunction with accompanying drawing the present invention done and further explain.

As described in Figure 1, a kind of magnetic coder electronic cam controller, comprise single-chip microcomputer, connect the magnetic coder of single-chip microcomputer, liquid crystal display, numeral method unit, horse race lamp unit, power supply, storage unit, key-press input unit and single-chip microcomputer IO interface respectively.As shown in Figure 2, magnetic coder comprises angular transducer chip AS5040, disc one side bipolar magnet and rotating shaft.Rotating shaft is passed disc one side bipolar magnet and is vertically fixed on the middle position of angular transducer chip AS5040, and disc one side bipolar magnet can around axis of rotation; Single-chip microcomputer IO interface is for connecting outside servomotor or stepper motor.

Wherein, single-chip microcomputer adopts the SMT32F103R8T6 of ST company, it is a 32 ARM single-chip microcomputers, not only fast operation, integrated functionality is powerful, and low price, between single-chip microcomputer and single-chip microcomputer IO interface, be provided with photo-coupler, the model connecting the photo-coupler of single-chip microcomputer input end pin adopts model to be PC817 linear optical coupling, and the photo-coupler model connecting single-chip microcomputer output terminal pin adopts CMOS04010.The angular transducer chip AS5040 that magnetic coder is logical crosses SPI serial line interface and is connected with single-chip microcomputer, and it is simple that this magnetic coder has structure, and cost is extremely low, and to environment without particular/special requirement, antijamming capability is strong, the advantage of reliable operation.Charactron unit adopts common cathode charactron, and anode adds current-limiting resistance by one-chip machine port and connects, and negative electrode is driven by chip 74LS145.Horse race lamp unit drives to other a slice 74LS145 by charactron 8 complexing pins through chip 74LS574.Power supply be input as 24V direct current, be converted to through chip TD1501 and export 5V direct current and power to partial circuit, then be converted into 3.3V through chip AMS1117 and supply single-chip microcomputer and use.

In this electric cam controls, set the position, summit of each passage cam work and positive/negative turn of setting of bottom dead centre position and magnetic coder by key-press input.According to setting, single-chip microcomputer exports activation bit to outside servomotor or stepper motor, thus controls the motion of cam part.Magnetic coder is as angular transducer, and its angular resolution can reach 1 degree, for detecting the absolute angle angle value of cam and obtaining accurate angle value after carrying out signal filtering.Single-chip microcomputer counts to calculate cam angle speed to the angle value change that magnetic coder exports, and carries out debounce to this magnitude of angular velocity.Numeral method unit is Dynamic Announce, for receive single-chip microcomputer output signal after show cam angle speed, frequency 100Hz.Horse race lamp unit comprises 36 angle pilot lamp, for calculating the lamp of this display according to cam angle angle value, and Dynamic Announce, frequency 1000Hz, significantly demonstrate the rotation real time position of cam with this, its angle is shown as 0-359 degree.Meanwhile, detect the angular velocity that obtains and angle value and be also dynamically presented on the liquid crystal display that is connected with single-chip microcomputer intuitively, liquid crystal display employing OLED display screen.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. a magnetic coder electronic cam controller, it is characterized in that: comprise single-chip microcomputer, connect the magnetic coder of described single-chip microcomputer, liquid crystal display, numeral method unit, horse race lamp unit, power supply, storage unit, key-press input unit and single-chip microcomputer IO interface respectively; Wherein, described magnetic coder comprises angular transducer chip AS5040, disc one side bipolar magnet and rotating shaft, described rotating shaft is passed disc one side bipolar magnet and is vertically fixed on the middle position of angular transducer chip AS5040, and described disc one side bipolar magnet can around axis of rotation; Described single-chip microcomputer IO interface is for connecting outside servomotor or stepper motor.

2. a kind of magnetic coder electronic cam controller according to claim 1, is characterized in that: between described single-chip microcomputer and single-chip microcomputer IO interface, be provided with photo-coupler.