CN202344338U - Driving power supply for driving tool and processing workpiece to get close rapidly - Google Patents
Driving power supply for driving tool and processing workpiece to get close rapidly Download PDFInfo
- Publication number
- CN202344338U CN202344338U CN2011204753986U CN201120475398U CN202344338U CN 202344338 U CN202344338 U CN 202344338U CN 2011204753986 U CN2011204753986 U CN 2011204753986U CN 201120475398 U CN201120475398 U CN 201120475398U CN 202344338 U CN202344338 U CN 202344338U
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- control unit
- rectifier
- current
- electrically connected
- mcu micro
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Abstract
The utility model discloses a driving power supply for driving a tool and a processing workpiece to get close rapidly. The driving power supply comprises a rectifier, an inverter, an MCU (Microprogrammed Control Unit) micro control unit and a driving circuit, wherein the rectifier is electrically connected with an electric network; the inverter is electrically connected with the direct-current side of the rectifier; the MCU micro control unit is provided with a man-machine interface; the driving circuit is used for controlling the running of a motor; the direct-current side of the rectifier is provided with a current detector in which a high-speed Hall current sensor is adopted; a DSP (Digital Signal Processing) microprocessor is connected in series between the MCU micro control unit and the driving circuit; the output end of the current detector is electrically connected with the MCU micro control unit and the DSP microprocessor respectively; and when a current value measured by using the current detector is larger than a preset idle current value, the MCU micro control unit starts executing a preset processing program, and is used for controlling the DSP microprocessor, the driving circuit and the inverter to control the motor to rotate according to the requirements of the processing program. According to the driving power supply, the tool and the processing workpiece can be safely and reliably controlled to gel close rapidly, and the working efficiency of a numerically-controlled machine tool is increased.
Description
Technical field
The utility model relates to the driving power of Digit Control Machine Tool, the driving power of especially a kind of cutter and the quick convergence of processing work.
Background technology
With automatic bearing grinder is example; The feed speed of emery wheel when actual grinding determined by technological requirement; Can not at will improve, but because the dispersiveness of workpiece blank size, when the process of the automatic bearing grinder of establishment; For fear of the unreasonable collision of workpiece and emery wheel, always, workpiece just gets into grinding process when also not touching emery wheel in advance.In order to improve the operating efficiency of grinding machine to greatest extent, desirable state should be workpiece and the quick convergence of emery wheel, changes grinding process at once in the contact.About the technical scheme of the quick convergence processing work of cutter, the quick convergence technical costs of traditional acoustic control is very high, and also because domestic acoustic control senser element waits perfectly, the actual effect of using is bad always.
The utility model content
The purpose of the utility model is: the driving power that a kind of cutter and the quick convergence of processing work are provided; It can record exactly cutter and processing work rigidly connect touch that constantly; Make Digit Control Machine Tool change normal procedure over to fast; Control the quick convergence of cutter and processing work safely and reliably, improve the operating efficiency of Digit Control Machine Tool.
For realizing above-mentioned purpose, the utility model can be taked following technical proposals:
The driving power of a kind of cutter of the utility model and the quick convergence of processing work; Comprise the rectifier that is electrically connected with electrical network, the inverter that is used to the motor power supply that is electrically connected with the rectifier DC side, have the MCU micro-control unit of man-machine interface and be electrically connected the drive circuit that is used to control motor rotation with inverter; Also be provided with the employing high speed current detector of ear current sensor suddenly in the rectifier DC side; Between MCU micro-control unit and drive circuit, be serially connected with the DSP microprocessor; The output of said current detector is electrically connected with MCU micro-control unit and DSP microprocessor respectively; The current value that records when current detector is during greater than preset no-load current value; The MCU micro-control unit begins to carry out preset procedure, controls motor through DSP microprocessor, drive circuit and inverter and rotates by the requirement of procedure.
The rectifier DC side is parallel with one group big capacity filter capacitor, is used to improve power factor, reduces the infringement to electrical network; Between the positive pole of said big capacity filter capacitor and rectifier, be serially connected with current-limiting resistance; Be used to limit the charging current of powered on moment to this big capacity filter capacitor; Said current-limiting resistance two ends also are connected to relay, after big capacity filter capacitor charging finishes, and said relay adhesive.
Compared with prior art the beneficial effect of the utility model is: owing to adopt technique scheme, also be provided with in the rectifier DC side and adopt at a high speed the current detector of ear current sensor suddenly, between MCU micro-control unit and drive circuit, be serially connected with the DSP microprocessor; The output of said current detector is electrically connected with MCU micro-control unit and DSP microprocessor respectively, and the current value that records when current detector is during greater than preset no-load current value, and the MCU micro-control unit begins to carry out preset procedure; Controlling motor through DSP microprocessor, drive circuit and inverter rotates by the requirement of procedure; This power supply is to adopt at a high speed ear current sensor measurement electric current suddenly, and its reaction speed is less than 1 μ s; When cutter touches processing work fast; Load increases, and the electric current of rectifier DC side must respond, and we just measure this signal with pure hardware circuit fast; And through fast processing (for example carrying out hardware filtering handles); Compare with the no-load current signal that configures again, in time send instruction, change procedure over to.This is a kind of technical scheme cheaply, has realized the quick convergence of cutter and processing work safely and reliably, has improved the operating efficiency of Digit Control Machine Tool.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model.
The specific embodiment
As shown in Figure 1; The driving power of a kind of cutter of the utility model and the quick convergence of processing work; Comprise the rectifier 1 that is electrically connected with electrical network, the inverter 3 that is used to motor 2 power supplies that is electrically connected with rectifier 1 DC side, have the MCU micro-control unit 5 of man-machine interface 4 and is electrically connected and be used to control the drive circuit 6 of motor 2 runnings and control power supply 10 with inverter 3; Also be provided with the employing high speed current detector 7 of ear current sensor suddenly at rectifier 1 DC side; Between MCU micro-control unit 5 and drive circuit 6, be serially connected with DSP microprocessor 8; The output of said current detector 7 is electrically connected with MCU micro-control unit 5 and DSP microprocessor 8 respectively; The current value that records when current detector 7 is during greater than preset no-load current value, and MCU micro-control unit 5 begins to carry out preset procedure, controls motor 2 through DSP microprocessor 8, drive circuit 6 and inverter 3 and rotates by the requirement of procedure.In order to improve power factor, reduce infringement to electrical network, at rectifier 1 DC side parallel one group big capacity filter capacitor C is arranged; In order to limit the charging current of powered on moment to this big capacity filter capacitor C; Between the positive pole of said big capacity filter capacitor C and rectifier 1, be serially connected with current-limiting resistance R; And at current-limiting resistance R two ends and be connected to relay J; After big capacity filter capacitor C charging finishes, the adhesive under the control of drive circuit 6 of said relay J.In order to judge whether big capacity filter capacitor C charging is accomplished, and can voltage detector be set at rectifier 1 DC side, also can adopt the mode of time-delay let the automatic adhesive of relay.
In order to improve accuracy; Preferably when cutter begins feeding; MCU micro-control unit 5 and/or DSP microprocessor 8 are received signal and are got into the signal capture state to current detector 7, and simultaneously, MCU micro-control unit 5 is set at the no-load current value with current value this moment automatically.
Claims (2)
1. the driving power of cutter and the quick convergence of processing work; Comprise the rectifier (1) that is electrically connected with electrical network, the inverter (3) that is used to motor (2) power supply that is electrically connected with rectifier (1) DC side, have the MCU micro-control unit (5) of man-machine interface (4) and is electrically connected and be used to control the drive circuit (6) that motor (2) turns round with inverter (3); It is characterized in that: also be provided with at rectifier (1) DC side and adopt at a high speed the current detector of ear current sensor (7) suddenly; Between MCU micro-control unit (5) and drive circuit (6), be serially connected with DSP microprocessor (8); The output of said current detector (7) is electrically connected with MCU micro-control unit (5) and DSP microprocessor (8) respectively; The current value that records when current detector (7) is during greater than preset no-load current value; MCU micro-control unit (5) begins to carry out preset procedure, controls motor (2) through DSP microprocessor (8), drive circuit (6) and inverter (3) and rotates by the requirement of procedure.
2. the driving power of a kind of cutter according to claim 1 and the quick convergence of processing work is characterized in that: rectifier (1) DC side parallel has one group big capacity filter capacitor (C), is used to improve power factor, reduces the infringement to electrical network; Between the positive pole of said big capacity filter capacitor (C) and rectifier (1), be serially connected with current-limiting resistance (R); Be used to limit the charging current of powered on moment to this big capacity filter capacitor (C); Said current-limiting resistance (R) two ends also are connected to relay (J); After big capacity filter capacitor (C) charging finishes, said relay (J) adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204753986U CN202344338U (en) | 2011-11-25 | 2011-11-25 | Driving power supply for driving tool and processing workpiece to get close rapidly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204753986U CN202344338U (en) | 2011-11-25 | 2011-11-25 | Driving power supply for driving tool and processing workpiece to get close rapidly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344338U true CN202344338U (en) | 2012-07-25 |
Family
ID=46533368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204753986U Expired - Fee Related CN202344338U (en) | 2011-11-25 | 2011-11-25 | Driving power supply for driving tool and processing workpiece to get close rapidly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398189A (en) * | 2011-11-25 | 2012-04-04 | 绍兴文理学院 | Driving power supply for quick approaching of cutter and machining workpiece |
| CN104539196A (en) * | 2014-12-10 | 2015-04-22 | 深圳市雷赛智能控制股份有限公司 | Driver soft start protecting device and protecting method thereof |
-
2011
- 2011-11-25 CN CN2011204753986U patent/CN202344338U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398189A (en) * | 2011-11-25 | 2012-04-04 | 绍兴文理学院 | Driving power supply for quick approaching of cutter and machining workpiece |
| CN104539196A (en) * | 2014-12-10 | 2015-04-22 | 深圳市雷赛智能控制股份有限公司 | Driver soft start protecting device and protecting method thereof |
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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 |
Granted publication date: 20120725 Termination date: 20151125 |