CN205362959U - Electric arc welding machine send a controller - Google Patents
Electric arc welding machine send a controller Download PDFInfo
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- CN205362959U CN205362959U CN201521095744.2U CN201521095744U CN205362959U CN 205362959 U CN205362959 U CN 205362959U CN 201521095744 U CN201521095744 U CN 201521095744U CN 205362959 U CN205362959 U CN 205362959U
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Abstract
The utility model provides an electric arc welding machine send a controller, include: direct current input voltage, three -phase inverter, current detection module, photoelectric coupling module, permanent magnet brushless motor, position detection module, send an actuating mechanism, DSP, communication ports module, protection circuit module, control panel module, three -phase inverter 0 module. The utility model discloses a to rotational speed real time control's requirement, reduced the wearing and tearing of motor brush, reduced the noise, improved the life of motor widely.
Description
Technical field
This utility model relates to a kind of arc welder wire feed controller, belongs to automation field.
Background technology
All kinds of automatically, in semiautomatic welding equipment, welding tractor and welding machine wire feed controller are essential, and stability and the reliability welding quality of its work have a direct impact.At present, more common weldering speed and wire feed drag the form of circuit transistor circuit and pwm circuit etc., and these dragging system analog devices are easily aging, and variations in temperature is sensitive, inconvenient maintenance.Adopt monolithic processor controlled dragging system, although part solves above-mentioned Problems existing, but it is subject to the restriction of single-chip microcomputer its own processing capabilities and arithmetic speed, it is difficult to the requirement that rotating speed is controlled in real time, the PI controller of power supply and PWM still adopt analog circuit, and digitized feature does not find full expression.Dsp chip with the stability of its digital device, can the feature such as large-scale integrated, particularly able to programme and be easily achieved real time signal processing, have broad application prospects in digital welding field.
Summary of the invention
The purpose of this utility model is to provide a kind of arc welder wire feed controller, dsp chip is adopted driver and controller to be integrated in one, realize various speed thereby through software programming accurately to regulate, system controls relatively easy, cost is low, energy-efficient, rotating speed is steady, and this dragging system can be obviously improved the static properties of system.
Principle of the present utility model is: arc welder wire feed controller adopts DSP to be controller and brushless direct current motor is drive motor, not only has stronger extract real-time and the ability processing signal, and anti-interference and stability are very strong.System is mainly made up of DSP, brshless DC motor, three-phase inversion, position detection and current detecting etc., and structure chart is as shown in Figure 1.DSP is utilized to be adjusted controlling, under different welding conditions (welding wire kind, diameter and welding material etc.), record some matching values of optimal parameter, and the welding parameter table that these discrete points are configured to corresponding different welding condition combination is stored in the FLASH of DSP.In actual welding process, operator arranges welding wire kind and diameter, receipts arc voltage by control panel and receives the parameter such as arc current, arc force selection wire feed rate, and whole controller architecture is simple, has high reliability and extensibility.In order to drive the rotation of DC brushless motor energy constant speed, adopt speed feedback control.This controller adopts PWM mode to realize the control to brushless electric machine, the wire-feeder resistance impact on welding can be eliminated, and be conducive to slow wire feed striking, improve the success rate of striking, its ultimate principle is to export PWM count word signal to power driving circuit, through three-phase inverter, brushless electric machine is carried out speed governing.System has malfunction monitoring and self-diagnostic function, once break down, by fault secure circuit, makes PDPINT Port interrupts process, and blocks PWM output, until Failure elimination.
The chip TMS320F240DSP that this controller adopts American TI Company to aim at motor control and develops, it adopts Harvard structure, independent read-write data/address bus and address bus, support parallel program and data operand addressing, the computing of many complexity can be carried out, there is less power consumption, higher reliability and quiet operation.This Highgrade integration chip rapidly becomes traditional micro-control unit (MCUS) and a kind of cheap substitute products of expensive multi-leaf design, and price drops to several dollars from hundreds of dollar.It has the feature of powerful digital processing unit: the speed of 20MIPS makes TMS320F240DSP controller perform fast 8～10 times of time than 16 microprocessor controller single instrctions, complete fast 16～30 times of multiply-add operation, 32 bit accumulators, 3 intervalometers, 16 bit address buses, 16 bit data bus.Also there is motor and control the unique resource of One Chip Solutions: 12 road pulse-width modulation PWM outputs, 2 10, tunnel 8 passage ADC, the multiplexing I/O pin of 28 independently programmables, serial communication interface SCI, serial peripheral equipment interface SPI.
The beneficial effects of the utility model are: anti-electromagnetic interference capability is strong, and stability is high, it is achieved that the requirement that rotating speed is controlled in real time, decrease the abrasion of motor brush, reduce noise, greatly increase the service life of motor, decrease time cost and the fund cost of maintenance failure.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structure chart of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As it is shown in figure 1, this utility model includes: DC input voitage, three-phase inverter, current detection module, photoelectric coupling module, permanent magnetic brushless, position detecting module, wire feed actuator, DSP, communications port module, protection circuit module, control panel module, speed preset module.
Further, described DC input voitage is connected with three-phase inverter, and DC signal inversion is the three-phase alternating current signal of telecommunication by three-phase inverter；
Described three-phase inverter connects described current detection module, photoelectric coupling module, permanent magnetic brushless respectively, current detection module gathers the current signal of three-phase inverter, photoelectric coupling module plays the effect of signal isolation, and the three-phase alternating current of three-phase inverter output is that permanent magnetic brushless is powered；
Described permanent magnetic brushless connects described position detecting module, wire feed actuator respectively, and position detecting module gathers the positional information of permanent magnetic brushless, and permanent magnetic brushless controls wire feed actuator and carries out wire feed；
The ADC1 port of described DSP connects described current detection module; the PWM port of DSP connects described photoelectric coupling module; the CAP/QEP port of DSP connects described position detecting module; the SC/SPI port of DSP connects communications port module; the PDPINT port of DSP connects described protection circuit module; the I/O port of DSP connects described control panel module, and the ADC2 port of DSP connects described speed preset module.
Further, the model that described three-phase inverter adopts is SX-200；
The model that described permanent magnetic brushless adopts is BM1418ZXF；
Described current detection module comprises RC first-order filtering circuit；
Described photoelectric coupling module includes Schmidt trigger, photoelectrical coupler (model is 6N137)；
The model of described DSP is TMS320F240；
Described communications port module includes chip MAX3232, filtering ceramic disc capacitor；
Described control panel module includes the touch screen that model is ET070；
Described speed preset module is high-precision potentiometer (resistance is 5.6K).
Claims (2)
1. an arc welder wire feed controller, it is characterised in that: including: DC input voitage, three-phase inverter, current detection module, photoelectric coupling module, permanent magnetic brushless, position detecting module, wire feed actuator, DSP, communications port module, protection circuit module, control panel module, speed preset module；Further, described DC input voitage is connected with three-phase inverter；Described three-phase inverter connects described current detection module, photoelectric coupling module, permanent magnetic brushless respectively；Described permanent magnetic brushless connects described position detecting module, wire feed actuator respectively；The ADC1 port of described DSP connects described current detection module; the PWM port of DSP connects described photoelectric coupling module; the CAP/QEP port of DSP connects described position detecting module; the SC/SPI port of DSP connects communications port module; the PDPINT port of DSP connects described protection circuit module; the I/O port of DSP connects described control panel module, and the ADC2 port of DSP connects described speed preset module.
2. a kind of arc welder wire feed controller according to claim 1, it is characterised in that: the model that described three-phase inverter adopts is SX-200；The model that described permanent magnetic brushless adopts is BM1418ZXF；Described current detection module comprises RC first-order filtering circuit；Described photoelectric coupling module includes Schmidt trigger, photoelectrical coupler；The model of described DSP is TMS320F240；Described communications port module includes chip MAX3232, filtering ceramic disc capacitor；Described control panel module includes the touch screen that model is ET070；Described speed preset module is high-precision potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095744.2U CN205362959U (en) | 2015-12-22 | 2015-12-22 | Electric arc welding machine send a controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095744.2U CN205362959U (en) | 2015-12-22 | 2015-12-22 | Electric arc welding machine send a controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205362959U true CN205362959U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521095744.2U Expired - Fee Related CN205362959U (en) | 2015-12-22 | 2015-12-22 | Electric arc welding machine send a controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN205362959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498146A (en) * | 2017-09-15 | 2017-12-22 | 唐山松下产业机器有限公司 | welding system, electric arc welding control device and method |
-
2015
- 2015-12-22 CN CN201521095744.2U patent/CN205362959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498146A (en) * | 2017-09-15 | 2017-12-22 | 唐山松下产业机器有限公司 | welding system, electric arc welding control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20161222 |