CN105353724A - Alarm system for numerical control machine tool hand-operated safety operation - Google Patents
Alarm system for numerical control machine tool hand-operated safety operation Download PDFInfo
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- CN105353724A CN105353724A CN201510897444.4A CN201510897444A CN105353724A CN 105353724 A CN105353724 A CN 105353724A CN 201510897444 A CN201510897444 A CN 201510897444A CN 105353724 A CN105353724 A CN 105353724A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
- G05B19/4063—Monitoring general control system
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34465—Safety, control of correct operation, abnormal states
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
Abstract
The invention discloses an alarm system for numerical control machine tool hand-operated safety operation. The invention relates to an alarm system for machine tool hand-operated safety operation, and belongs to the industrial control and automation technology field. The system comprises a wireless signal emitter and a wireless signal receiver that are installed on a main shaft of a machine tool, an indicating lamp and a buzzing apparatus. When the machine tool is operated manually, if the wireless signal receiver detects that the distance between the main shaft of the machine tool and a workpiece is less than a preset safe distance, the wireless signal receiver will generate an alarm signal that is sent to a numerical control system for feedback through an IO plate; the numerical control system will generate a buzzing alarm prompt after receiving the alarm signal and send the signal to a motion shaft; the speed of the manually-operated motion shaft is modified to a minimum machine tool speed; and a prompt for operation safety is displayed on a numerical control system interface. According to the invention, the loss generated by collision between the main shaft of the machine tool and the workpiece because of the operator's fault in the machine tool manual operation process can be greatly reduced. The alarm system is particularly suitable for machine tool alignment operation when the workpiece installation is complete.
Description
Technical field
The present invention relates to a kind of industrial control system, belong to Industry Control and technical field of automation.
Background technology
Numerically-controlled machine is the high and new technology equipment of electromechanical integration, has the feature such as high-level efficiency, high precision, can solve process difficulties, and have certain flexibility again, has played powerful technical advantage in manufacturing industry.Nowadays, in production line, a large amount of numerically-controlled machine instead of traditional machine tool, and due to the raising of automaticity, its security there has also been very large improvement.But in the middle of production run, still may there is various security incident.Particularly beginner is when operating lathe, often there will be some abnormal conditions.When these unexpected abnormality situations occur, the lighter damages cutter, and workpiece is scrapped, and severe one injury device, has a strong impact on machine tool accuracy, even injures operating personnel's personal safety.And the axle before processing starts moves or the manual operation stage such as workpiece centering, beginner is unskilled owing to operating, and extremely easily occurs the situation of moving direction mistake, such as, but have selected when cutter should move up to move down, and causes to hit cutter; Or in moving process, do not note the relative position of workpiece and main shaft and move, easily causing the collision of main shaft and workpiece, cause the generation of security incident.
Summary of the invention
Because the above-mentioned defect of existing numerically-controlled machine, technical matters to be solved by this invention is to provide a kind of warning system for the operation of numerically-controlled machine manual safety, under guarantee does not affect the prerequisite of lathe normal process, increase a manually operated warning system of lathe, operator can be made safer in the axle moving process of processing preparatory stage, greatly reduce because operating personnel's error causes damage.
Technical solution of the present invention is as follows:
For a warning system for numerically-controlled machine manual safety operation, its feature is, comprises detection module, feedback module, processing module and execution module;
Described detection module, for detecting the distance of workpiece and machine tool chief axis, if this distance is less than the safe distance pre-set, then sends alerting signal to described feedback module;
Described feedback module, is transferred to described processing module by alerting signal, and changes the feedback signal of processing module into movement instruction or alarm signal is transferred to described execution module;
Described processing module, for processing the alerting signal received, produces feedback signal, and the feedback module be transferred to;
Described execution module, receives alarm signal or movement instruction, produces alarm and motion.
Further, described detection module comprises the wireless signal transmitter be arranged on machine tool chief axis, wireless signal receiver and distance alarm device;
Described processing module comprises numerically-controlled machine tool system and computing machine;
Described execution module comprises being arranged on and machine tool main body produces the hummer that buzzing is reported to the police and the pilot lamp producing flicker of reporting to the police, and kinematic axis driver and kinematic axis thereof;
Described feedback module comprises I/O interface plate and motion controller, and this I/O interface plate is connected with described distance alarm device, boom unit, pilot lamp and motion controller respectively, and described motion controller is connected with execution module with described processing module;
Described execution module comprises machine tool control system and human-computer interaction interface.
Operation logic of the present invention is as follows:
During lathe manual operation, wireless signal receiver detect machine tool chief axis and workpiece distance be less than one preset safe distance time can produce an alerting signal, this alerting signal feeds back to motion controller, motion controller sends signal to machine tool numerical control system again, and machine tool numerical control system will perform following action after receiving alerting signal:
(1) send alarm signal to motion controller, wherein alarm signal is transferred to IO board again and sends to hummer and the pilot lamp number of delivering letters respectively;
(2) send signal to motion control card, manually operated kinematic axis speed is revised as the minimum movement speed of lathe;
(3) arrive risk distance digital control system interface prompt user, note handling safety.
Alerting signal and the transmission relation of movement instruction between warning system modules are as shown in Figure 1.
Further, described lathe comprises an axle and above multi-shaft interlocked lathe.
Further, described lathe warning device is be arranged on lathe and the hummer be connected with lathe IO board or pilot lamp, sends signal control its startup or stop by machine tool numerical control system to IO board.
Further, the described warning system for the operation of lathe manual safety, it is characterized in that, described manual operation refer to machine tooling start before sequence of operations, comprise the movement of each kinematic axis and the centering of workpiece etc. a series of for starting the preliminary work of processing, processing starts then to close this function.
Further, described safe distance is a digital control system distance corresponding according to user's current axis translational speed, and axle translational speed is larger, and safe distance is also larger.
Beneficial effect of the present invention is: detect distance between the two by the wireless signaling mechanisms be arranged on machine tool chief axis and workpiece, when find range from the safe distance being less than or equal in advance setting and will produce alerting signal later, machine tool numerical control system can reduce the speed of kinematic axis according to alerting signal and point out user to note handling safety, avoid the maloperation of operating personnel to a great extent, greatly reduce the loss that brings because of maloperation of preparatory stage before processing.
Accompanying drawing explanation
Fig. 1 is alerting signal of the present invention and the transmission relation of movement instruction between warning system modules.
Fig. 2 is configuration diagram of the present invention.
Fig. 3 is the overall architecture of the warning system of a specific embodiment of the present invention.
Fig. 4 is the process flow diagram of the warning system of a specific embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give concrete implementation method, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 2, whole warning system is made up of four modules configuration diagram of the present invention, comprising: detection module, feedback module, processing module and execution module.
Described detection module refers to the direct measuring distance of detected wireless signals and produces the module of alerting signal, wherein comprises: (1) is arranged on wireless signal transmitter on machine tool chief axis and wireless signal receiver; (2) distance alarm device.
Described feedback module refers to that the alerting signal by detection module produces is transferred to processing module and by the information feed back of processing module to execution module, wherein comprises: the I/O interface plate that (1) is connected with alerting signal, boom unit, pilot lamp and motion controller; (2) motion controller be connected with execution module with processing module.
Described processing module refers to that receiving motion controller transmits the signal that comes up and the module producing feedback signal, wherein comprises: (1) machine tool numerical control system; (2) computing machine and display.
Described execution module refers to and receives the alarm signal of IO card or the movement instruction of motion controller, and produces the module of alarm and motion.Wherein comprise: (1) is arranged on the hummer that electricity produces buzzing warning cashier's office in a shop; (2) pilot lamp that electricity produces flicker of reporting to the police cashier's office in a shop is arranged on; (3) the kinematic axis driver be connected with motion controller; (4) kinematic axis be connected with kinematic axis driver.
As shown in Figure 3, the process flow diagram of the warning system of specific embodiment as shown in Figure 4 for the overall architecture of the warning system of a specific embodiment of the present invention.Before lathe manual operation, a first setting safe distance, manually can be arranged on radio receiver or EDM CNC system passes through the axle translational speed Lookup protocol of current selected and sends to it.When user carries out manual operation, be arranged on the distance that wireless signal transmitter on main shaft and wireless signal receiver synergy are come between detecting electrode and workpiece, after both distances are less than or equal to the safe distance preset, by generation alerting signal.Alerting signal is read in by the ACC-34AAIO interface board be connected with warning device and is transferred to PMAC motion control card, then alerting signal is transferred to EDM CNC system by PMAC motion control card, EDM CNC system will carry out a series of process after receiving alerting signal, specifically perform an action as follows:
(1) alarm signal is sent to PMAC motion control card, wherein alarm signal comprises buzzer signal and pilot lamp signal, then alarm signal is transferred to the distinct interface of ACC-34AAIO interface board again, and then signal is sent to hummer and pilot lamp by ACC-34AAIO interface board more respectively respectively;
(2) movement instruction is sent to PMAC motion control card, as shown in Figure 4, contain two kinds of possibilities, if user still needs to carry out manual operation, then manually operated kinematic axis speed is revised as the minimum movement speed of lathe, now safe distance also changes corresponding, becomes the safe distance that present speed is corresponding.If user without the need to operation, then stops;
(3) eject the risk distance that dialog box prompting user has arrived present speed at digital control system interface, note handling safety.
For specifically showing the working mechanism of core of the present invention (i.e. communication between modules), be described in conjunction with a comparatively simple embodiment at this.In the present embodiment, as shown in Figure 3, wireless signaling mechanisms, in time detecting that main shaft and workpiece have reached safe distance, will produce an alerting signal.This alerting signal is transferred to the Input mouth (being assumed to be Input1 passage here) of ACC-34AAIO interface board, by the prior definition to PMAC motion control card, a M variable such as M987 is used to point to the Input1 passage of ACC-34AAIO interface board, so once ACC-34AAIO interface board receives alerting signal, its level will change, and the thread of EDM CNC system is that t refreshes the Input mouth of a PMAC motion control card variable sensing ACC-34AAIO interface board at regular intervals, so once generation alerting signal is read within time t by the corresponding program of EDM CNC system, this is that alerting signal produces feedback module from detection module, the whole transmitting procedure that the module that is finally processed receives.After alerting signal is read by EDM CNC system, system will carry out respective handling, comprise: (1) sends alarm signal to boom unit and pilot lamp; (2) movement instruction is sent to kinematic axis; (3) human-computer interaction interface dialog box prompting user.
Wherein, the order of (1) first sends instruction to the variable of predefined in PMAC motion control card.As hummer is connected with 1, No. 2 passage of pilot lamp respectively at the Output mouth of ACC-34AAIO interface board, and their M variable corresponding in PMAC motion control card is M988, M989, after so EDM CNC system sends instruction to the corresponding b variable of PMAC motion control card and c variable, the Output mouth 1 that control ACC-34AAIO interface board is corresponding and No. 2 passages, make buzzer warning, pilot lamp glimmers, and its concrete duration can be given by EDM CNC system.(2) movement instruction of each axle is then the variable transmission speed instruction of predefined in PMAC motion control card, I122 as corresponding in X-axis, the corresponding I222 of Y-axis, namely each axle is corresponding with I*22, and a PMACPCI motion control card controls at most 8 kinematic axiss.After digital control system sends instruction to I*22, PMAC motion control card will change the movement velocity of corresponding * axle, * axle driver again by being connected with PMAC motion control card is transferred on * spindle motor, realize the transmission of movement instruction, wherein * axle represents 1 ~ No. 8 axle of a PMACPCI motion control card.And (3) human-computer interaction interface prompting user can directly be realized by Computerized Numerical Control System Program, without the need to Signal transmissions.
Like this, by the communication between modules, achieve by the complete procedure of alerting signal generation → transmission → process → feedback → execution.
More than describe preferred embodiment of the present invention in detail.Those skilled in the art it should be understood that without departing from the present invention, design according to the present invention can make many modifications and variations.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by changing material or the available technical scheme of feature situation.
Claims (5)
1., for a warning system for numerically-controlled machine manual safety operation, it is characterized in that, comprise detection module, feedback module, processing module and execution module;
Described detection module, for detecting the distance of workpiece and machine tool chief axis, if this distance is less than the safe distance pre-set, then sends alerting signal to described feedback module;
Described feedback module, is transferred to described processing module by alerting signal, and changes the feedback signal of processing module into movement instruction or alarm signal is transferred to described execution module;
Described processing module, for processing the alerting signal received, produces feedback signal, and the feedback module be transferred to;
Described execution module, receives alarm signal or movement instruction, produces alarm and motion.
2., as claimed in claim 1 for the warning system of numerically-controlled machine manual safety operation, it is characterized in that, described detection module comprises the wireless signal transmitter be arranged on machine tool chief axis, wireless signal receiver and distance alarm device;
Described processing module comprises numerically-controlled machine tool system and computing machine;
Described execution module comprises being arranged on and machine tool main body produces the hummer that buzzing is reported to the police and the pilot lamp producing flicker of reporting to the police, and kinematic axis driver and kinematic axis thereof;
Described feedback module comprises I/O interface plate and motion controller, and this I/O interface plate is connected with described distance alarm device, boom unit, pilot lamp and motion controller respectively, and described motion controller is connected with execution module with described processing module;
Described execution module comprises machine tool control system and human-computer interaction interface.
3., as claimed in claim 1 for the warning system of numerically-controlled machine manual safety operation, it is characterized in that, described numerically-controlled machine comprises an axle and above multi-shaft interlocked lathe.
4. as claimed in claim 1 for the warning system of numerically-controlled machine manual safety operation, it is characterized in that, described hummer and pilot lamp are all send signal by machine tool numerical control system to IO board to start to control it or stop.
5. as claimed in claim 1 for the warning system of numerically-controlled machine manual safety operation, it is characterized in that, described safe distance is a digital control system distance corresponding according to user's current axis translational speed, and axle translational speed is larger, and safe distance is also larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897444.4A CN105353724A (en) | 2015-12-07 | 2015-12-07 | Alarm system for numerical control machine tool hand-operated safety operation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510897444.4A CN105353724A (en) | 2015-12-07 | 2015-12-07 | Alarm system for numerical control machine tool hand-operated safety operation |
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| CN105353724A true CN105353724A (en) | 2016-02-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270861A (en) * | 2016-09-12 | 2017-01-04 | 无锡微研精微机械技术有限公司 | The anticollision protection system of a kind of spark-erosion machine tool and method |
| CN107824921A (en) * | 2017-12-18 | 2018-03-23 | 无锡微研精微机械技术有限公司 | Scarce the silk judgment means and determination methods of a kind of electric spark machine tool |
| CN113843657A (en) * | 2021-09-13 | 2021-12-28 | 珠海格力智能装备有限公司 | Machine tool control method, machine tool control device, storage medium, processor, and machine tool device |
| CN114367719A (en) * | 2022-01-19 | 2022-04-19 | 中国石油大学(华东) | Safety protection method and system for high-speed arc milling machine tool |
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| CN113843657A (en) * | 2021-09-13 | 2021-12-28 | 珠海格力智能装备有限公司 | Machine tool control method, machine tool control device, storage medium, processor, and machine tool device |
| CN113843657B (en) * | 2021-09-13 | 2022-09-09 | 珠海格力智能装备有限公司 | Machine tool control method, machine tool control device, storage medium, processor, and machine tool device |
| CN114367719A (en) * | 2022-01-19 | 2022-04-19 | 中国石油大学(华东) | Safety protection method and system for high-speed arc milling machine tool |
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Application publication date: 20160224 |