CN2879255Y - Cutting over-load monitor for digital control machine tool - Google Patents
Cutting over-load monitor for digital control machine tool Download PDFInfo
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- CN2879255Y CN2879255Y CN 200520079748 CN200520079748U CN2879255Y CN 2879255 Y CN2879255 Y CN 2879255Y CN 200520079748 CN200520079748 CN 200520079748 CN 200520079748 U CN200520079748 U CN 200520079748U CN 2879255 Y CN2879255 Y CN 2879255Y
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- servo motor
- control module
- current sensor
- feed
- overload
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Abstract
A cutting over-load monitor for digital control machine tool is composed of a PLC controller, a CNC control unit, principal axis and feeding servo drivers, a current sensor and an A/D converter, principal axis and feeding servo motors, a workpiece rotary motion, and a tool movement part; includes output of CNC, input interfaces respectively connecting to the principal axis and feeding servo drivers, the output of the principal axis and feeding servo drivers respectively connect to the input interfaces of the current sensor and the A/D converter, the output interfaces respectively connect to the input ends of the principal axis and feeding servo motors, the output end of the principal axis servo motor connects to the workpiece rotary motion, the output end of the feeding servo motor connects to a control circuit of the tool movement; the cutting over-load is monitored by using control function of the controller, with characteristics of strong self-diagnostic capability and protecting tool.
Description
Technical field:
The utility model relates to safeguard protection field in the mechanical processing process, is specifically related to a kind of device that the numerically-controlled machine machining overload is monitored in the machining workpiece process.
Background technology:
Along with numerically-controlled machine popularizing in machinery manufacturing industry; in production application; the digital control system device great majority of lathe utilize the excess current of spindle drive motor and feed motor to report to the police; force spindle drive motor and feed motor out of service; this situation of shutting down by force; ignore the defencive function when breaking down, cutter is stuck in the workpiece, caused the damage of workpiece and cutter easily.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of controller that the numerically-controlled machine machining overload is monitored is provided.This device utilizes every control function of controller system that machining overload is monitored in real time, can be in cutting process, after the control assembly of appliance computer numerical control (CNC) monitors the machining overload signal, the control cutter returns the safety zone by certain path, it is not enough to have solved former machining overload monitoring, cause cutter card workpiece, to the problem of workpiece and tool damage.
For achieving the above object, the technical solution adopted in the utility model is: the machining overload watch-dog is by the PLC controller, the CNC control module, the main axle servo driver, feed servo driver, current sensor and A/D converter, the main axle servo motor, the feed servo motor, Workpiece Rotating moving component, compositions such as tool motion parts.Comprise the built-in PLC controller of CNC control module, the PLC controller is used for handling in real time the drive motor load variation that reads from CNC; The CNC control module is used for data acquisition and processing.The output of CNC control module, input interface connect main axle servo driver and feed servo driver respectively, and main shaft and feed servo driver detect the cutting load variable in real time; Main axle servo driver and feed servo output end of driver are connected the input interface of current sensor and A/D converter respectively, and its output interface connects the input end of main axle servo motor and feed servo motor respectively; The output terminal of main axle servo motor connects the Workpiece Rotating moving component; The output terminal of feed servo motor connects the control circuit of tool motion parts.In control circuit, current sensor and A/D converter are realized that as main shaft, feed servo driver and main shaft, the joining interface circuit of feed servo motor and signal conditioning circuit signal transmits.
In described interface circuit and the signal conditioning circuit output signal of current sensor is carried out processing and amplifying, keep, become digital signal after mould/number conversion, feed back to the CNC control module, so that gathered and handle by the CNC control module through sampling; Simultaneously the overload current amount is detected automatically.
The task of described CNC control module is: connect the CNC control module by the internal bus cable, the information of CNC control module is in time read in the PLC controller, and read spindle drive motor and the real-time load variation of feed motor by spindle drive motor and feeding driver, by the logic control program that enrolled implement management and control spindle drive motor and feed motor starting, stop, rotating speed and direction, carry out overload detection, after monitoring dress machining overload signal, send instruction, the control cutter stops processing after withdrawing from the overload processing district, returns the safety zone; And demonstration machining overload information.
The task of described PLC controller is: handle the driving motor load variation that reads from the CNC control module in real time, carry out actual loading and the comparison of setting load, feed back to the CNC control module in real time.
The task of described main axle servo driver and feed servo driver is: the servo condition signal is input to the CNC control module by the servo-driver interface, under control signal control, drives workpiece and tool motion, and detect the cutting load variable in real time.
The beneficial effects of the utility model are, in the machine cut process, after the CNC control module of this supervising device receives the machining overload signal, the control cutter returns the safety zone by certain path, self diagnostic capability is strong, can avoid causing the damage of workpiece and cutter effectively, guarantee the processing of workpiece and the safety of machine tool, and improve the reliability of work efficiency.
Description of drawings:
Fig. 1 is the structure connection diagram of machining overload watch-dog
Embodiment:
Be described in further detail below in conjunction with accompanying drawing
Referring to Fig. 1, the machining overload supervising device is by PLC controller 1, CNC control module 2, main axle servo driver 3, feed servo driver 4, current sensor and A/D converter 5, main axle servo motor 6, feed servo motor 7, Workpiece Rotating moving component 8, tool motion parts 9 interrupt part program 10, call withdrawing subroutine 11 and form.Comprise CNC control module 2 built-in PLC controllers 1, PLC controller 1 is used for handling in real time the drive motor load variation that reads from CNC; CNC control module 2 is used for data acquisition and processing.The output of CNC control module 2, input interface connect main axle servo driver 3 and feed servo driver 4 respectively, and main shaft and feed servo driver 3,4 detect the cutting load variable in real time; Main axle servo driver 3 and the output terminal of feed servo driver 4 are connected the input interface of current sensor and A/D converter 5 respectively, and its output interface connects the input end of main axle servo motor 6 and feed servo motor 7 respectively; The output terminal of main axle servo motor 6 connects Workpiece Rotating moving component 8; The output terminal of feed servo motor 7 connects the control circuit of tool motion parts 9.In control circuit with current sensor and A/D converter as main shaft, feed servo driver and main shaft, the joining interface circuit of feed servo motor and signal conditioning circuit, realize that signal transmits; The output signal of current sensor is carried out processing and amplifying, keep, become digital signal after mould/number conversion, feed back to the CNC control module, so that gathered and handle by the CNC control module through sampling; Simultaneously the overload current amount is detected automatically.Its principle of work is: the CNC control module reads spindle drive motor and the real-time load variation of feed motor by spindle drive motor and feeding driver after carrying out the job sequence startup; If processing parts, CNC reads in part program, otherwise finishes the machining overload monitoring.PLC reads spindle drive motor and the real-time load variation of feed motor from CNC, and execution actual loading and the comparison of setting load, if actual loading is less than setting load, CNC continues to carry out part program, if actual loading is greater than or equal to the setting load, CNC carries out and interrupts part program, read the geological information of current machining profile, carry out the withdrawing program, the control cutter stops processing after withdrawing from the overload processing district, returns the safety zone by certain path.CNC man-machine interface interface display machining overload information avoids causing the damage of workpiece and cutter effectively.
Claims (3)
1, a kind of numerically-controlled machine machining overload watch-dog, by PLC controller (1), CNC control module (2), main axle servo driver (3), feed servo driver (4), current sensor and A/D converter (5), main axle servo motor (6), feed servo motor (7), Workpiece Rotating motion (8), tool motion (9) parts are formed; Comprise the built-in PLC controller of CNC control module (2) (1), the output of CNC control module (2), input interface connect main axle servo driver (3) and feed servo driver (4) respectively, main axle servo driver (3) and the output terminal of feed servo driver (4) are connected the input interface of current sensor and A/D converter (5) respectively, and the output interface of current sensor and A/D converter (5) connects the input end of main axle servo motor (6) and feed servo motor (7) respectively; The output terminal of main axle servo motor (6) connects Workpiece Rotating moving component (8); The output terminal of feed servo motor (7) connects the control circuit of tool motion parts (9); It is characterized in that: in the control circuit current sensor and A/D converter (5) are realized that with main shaft, the joining interface circuit of feed servo motor (6) (7) and signal conditioning circuit signal transmits as main shaft, feed servo driver (3) (4).
2, numerically-controlled machine machining overload watch-dog according to claim 1, it is characterized in that: in described interface circuit and the signal conditioning circuit output signal of current sensor is carried out processing and amplifying, keep through sampling, become digital signal after mould/number conversion, so that gathered and handle by CNC control module (2); Simultaneously the overload current amount is detected automatically.
3, numerically-controlled machine machining overload watch-dog according to claim 1, it is characterized in that: described main shaft, feed servo driver (3), (4), the servo condition signal is input to the CNC control module by the servo-driver interface, under control signal control, drives workpiece and tool motion; The cutting load variable is detected in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079748 CN2879255Y (en) | 2005-11-17 | 2005-11-17 | Cutting over-load monitor for digital control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079748 CN2879255Y (en) | 2005-11-17 | 2005-11-17 | Cutting over-load monitor for digital control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879255Y true CN2879255Y (en) | 2007-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200520079748 Expired - Fee Related CN2879255Y (en) | 2005-11-17 | 2005-11-17 | Cutting over-load monitor for digital control machine tool |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465835C (en) * | 2007-09-27 | 2009-03-04 | 中国兵器工业第五九研究所 | Control method for bar stock saw cutting self-adapting precision baiting |
| CN101334656B (en) * | 2008-07-25 | 2010-08-04 | 华中科技大学 | Numerical control machine processability monitoring system |
| CN103838181A (en) * | 2012-11-22 | 2014-06-04 | 财团法人资讯工业策进会 | Machine tool state judgment method and system |
| CN108214517A (en) * | 2018-03-08 | 2018-06-29 | 贵州电网有限责任公司 | It is a kind of can buckling duct structure screen of trees cleaning air-robot |
| CN108406954A (en) * | 2018-03-08 | 2018-08-17 | 贵州电网有限责任公司 | The duplex type saw blade lamps structure and control method of air-robot are cleared up for screen of trees |
| CN108556068A (en) * | 2018-03-08 | 2018-09-21 | 南京太司德智能科技有限公司 | A kind of double saw cutting tool controlling devices and control method of screen of trees cleaning air-robot |
| CN108551906A (en) * | 2018-03-08 | 2018-09-21 | 南京太司德智能科技有限公司 | A kind of tool guard and method of screen of trees cleaning air-robot |
| CN108568863A (en) * | 2018-03-08 | 2018-09-25 | 贵州电网有限责任公司 | A kind of double saw blade lamps structures and control method for screen of trees cleaning air-robot |
| CN109116805A (en) * | 2018-08-10 | 2019-01-01 | 珠海格力智能装备有限公司 | Machine tool motion safety detection method and device, storage medium and processor |
| CN108415366B (en) * | 2018-03-05 | 2021-01-29 | 高邑县云发专用机床厂 | Cutting depth feedback method based on servo technology and intelligent cutting method and system |
| CN112947303A (en) * | 2021-03-03 | 2021-06-11 | 江苏松田数控科技有限公司 | Machine tool overload monitoring system and control method |
-
2005
- 2005-11-17 CN CN 200520079748 patent/CN2879255Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465835C (en) * | 2007-09-27 | 2009-03-04 | 中国兵器工业第五九研究所 | Control method for bar stock saw cutting self-adapting precision baiting |
| CN101334656B (en) * | 2008-07-25 | 2010-08-04 | 华中科技大学 | Numerical control machine processability monitoring system |
| CN103838181A (en) * | 2012-11-22 | 2014-06-04 | 财团法人资讯工业策进会 | Machine tool state judgment method and system |
| CN103838181B (en) * | 2012-11-22 | 2016-12-21 | 财团法人资讯工业策进会 | Machine tool state judgment method and system |
| CN108415366B (en) * | 2018-03-05 | 2021-01-29 | 高邑县云发专用机床厂 | Cutting depth feedback method based on servo technology and intelligent cutting method and system |
| CN108568863A (en) * | 2018-03-08 | 2018-09-25 | 贵州电网有限责任公司 | A kind of double saw blade lamps structures and control method for screen of trees cleaning air-robot |
| CN108556068A (en) * | 2018-03-08 | 2018-09-21 | 南京太司德智能科技有限公司 | A kind of double saw cutting tool controlling devices and control method of screen of trees cleaning air-robot |
| CN108551906A (en) * | 2018-03-08 | 2018-09-21 | 南京太司德智能科技有限公司 | A kind of tool guard and method of screen of trees cleaning air-robot |
| CN108406954A (en) * | 2018-03-08 | 2018-08-17 | 贵州电网有限责任公司 | The duplex type saw blade lamps structure and control method of air-robot are cleared up for screen of trees |
| CN108214517A (en) * | 2018-03-08 | 2018-06-29 | 贵州电网有限责任公司 | It is a kind of can buckling duct structure screen of trees cleaning air-robot |
| CN108551906B (en) * | 2018-03-08 | 2023-10-20 | 南京太司德智能科技有限公司 | Cutter protection device and method for tree obstacle cleaning aerial robot |
| CN108556068B (en) * | 2018-03-08 | 2023-10-31 | 南京太司德智能科技有限公司 | Double-saw cutter control device and control method for tree obstacle cleaning aerial robot |
| CN108568863B (en) * | 2018-03-08 | 2023-12-12 | 贵州电网有限责任公司 | Double-saw cutter structure for tree obstacle clearing aerial robot and control method |
| CN108406954B (en) * | 2018-03-08 | 2024-04-05 | 贵州电网有限责任公司 | Double-rope saw cutter structure for tree obstacle clearing aerial robot and control method |
| CN109116805A (en) * | 2018-08-10 | 2019-01-01 | 珠海格力智能装备有限公司 | Machine tool motion safety detection method and device, storage medium and processor |
| CN112947303A (en) * | 2021-03-03 | 2021-06-11 | 江苏松田数控科技有限公司 | Machine tool overload monitoring system and control 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 |
Granted publication date: 20070314 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |