CN105665822B - Numerical control band sawing machine with weakening and correcting controller - Google Patents
Numerical control band sawing machine with weakening and correcting controller Download PDFInfo
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- CN105665822B CN105665822B CN201610104970.5A CN201610104970A CN105665822B CN 105665822 B CN105665822 B CN 105665822B CN 201610104970 A CN201610104970 A CN 201610104970A CN 105665822 B CN105665822 B CN 105665822B
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- saw
- band
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- sawing
- strainer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/005—Devices for damping vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/10—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of devices for tensioning strap saw blades
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- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses the numerical control band sawing machine with weakening and correcting controller.There is saw band vibration, wander off and deform in existing band-saw machine tool, cause workpiece sawing quality to decline.The clamp system of the present invention is by Workpiece clamping on the workbench of lathe bed；Saw band is tensioned by strainer；Main motion servomotor drives active band saw wheel；Feed servo motor driving feed mechanism is so as to drive saw frame；The displacement at eddy current displacement sensor detection saw band sawing portion two ends is respectively provided with two deviation correcting devices, and is input to vibration values and sawing error that control module calculates saw band；Strainer, deviation correcting device and vibration damping device are by control module control.The testing result that the present invention vibrates according to saw band, is jointly controlled by vibration damping device and strainer, eliminates vibration；According to the testing result of saw band kinematic error, automatically adjusted by deviation correcting device, so as to greatly improve sawing precision and surface quality.
Description
Technical field
The invention belongs to electromechanical integration technology area, and in particular to a kind of numerical control tape with weakening and correcting controller
Sawing machine, weakening is used for the vibration elimination and error compensation sawed in sawing process with correcting controller.
Background technology
Numerical control tape saw equipment is the preferred unit of parts preliminary working in the modern mechanical manufacturing industry such as automobile, aircraft and ship
One of, machining accuracy, efficiency, reliability and the automaticity of the equipment directly influence whole parts productivity effect and
Quality.Because the sawing tool of numerical control band sawing machine is saw band, i.e., flexible cutter, inevitably because of workpiece material in sawing process
Matter is uneven, machine tool motion part abrasion, the change of operational factor and cause saw band vibrate (flutter), wander off and deform, cause work
The decline of part sawing precision and surface quality.It is existing there is no similar weakening and correcting controller with saw equipment, make sawing
The raising of precision is into technical bottleneck.It is therefore desirable to have the vibration of a kind of weakening and correcting controller, in real time detection saw band
(flutter), wander off and deformation, carry out online weakening, automatic deviation correction, break through the sawing limit of accuracy of existing Sawing Process, carry
The sawing precision and surface quality of high workpiece.
The content of the invention
The present invention vibrates (flutter) for existing band-saw machine tool saw band present in sawing process, wanders off and deform, and makes
Be decreased obviously into workpiece sawing quality, and existing Sawing Process be difficult to break through the sawing limit of accuracy the problem of there is provided a kind of number
Control the structure and corresponding process program of band sawing machine weakening and correcting controller.
The technical solution used in the present invention is：
The present invention include saw frame, active band saw wheel, main motion servomotor, feed mechanism, feed servo motor, lathe bed,
Feed lead, driven band saw wheel, eddy current displacement sensor, strainer, deviation correcting device, saw band, vibration damping device and clamping
Mechanism.Described clamp system is by Workpiece clamping on the workbench of lathe bed；Be provided with described saw frame active band saw wheel and
Driven band saw wheel；Described saw band connection active band saw wheel and driven band saw wheel, and be tensioned by strainer；Described main motion
Servomotor drives active band saw wheel；Described feed servo motor driving feed mechanism, feed mechanism drive saw frame produce into
To motion；Saw frame constitutes sliding pair with feeding lead；Eddy current displacement sensor detection saw is respectively provided with two deviation correcting devices
Displacement with sawing portion two ends, and it is input to vibration values and sawing error that control module calculates saw band；Described tensioning device
Structure, deviation correcting device and vibration damping device are by control module control.Described deviation correcting device is by deviation-rectifying servo motor, the first screw mandrel spiral shell
Parent agency, guide pad, swing rod and bearing pin composition；Described deviation-rectifying servo motor is arranged on saw frame, and drives the first screw mandrel spiral shell
Parent agency；Described guide pad is fixed on the nut of the first leading screw and nut mechanism；One end of swing rod is fixed with guide pad, another
End is hinged by bearing pin with saw frame；In the guide groove that saw band insertion guide pad is opened up.
Described guide pad and the nut junction of swing rod junction and guide pad and the first leading screw and nut mechanism are welded
There is reinforcement.
Described strainer is made up of tensioning servomotor, the second leading screw and nut mechanism and pinch rollers.Described
Tight servomotor drives the second leading screw and nut mechanism；Described pinch rollers are hinged on the nut of the second leading screw and nut mechanism,
And contacted with saw band.
Described vibration damping device is made up of ultrasonic wave controller and ultrasonic transducer；Ultrasonic wave controller passes through electric whirlpool
The saw band Vibration Condition of displacement transducer detection is flowed, corresponding ultrasonic pulsative signal, control ultrasonic transducer effect is produced
In saw band.
Described main motion servomotor and feed servo motor is each equipped with electric machine controller and photoelectric speed detection dress
Put；Described control module includes parameter optimization controller, deviation correcting device and tensioning controller；Parameter optimization controller optimization
Operation and control parameter, deviation correcting device error correct device, tensioning controller control strainer.
Beneficial effects of the present invention：The testing result that the present invention vibrates according to saw band, is entered by vibration damping device and strainer
Row jointly controls, and eliminates vibration；According to the testing result of saw band kinematic error, automatically adjusted by deviation correcting device, i.e., general
On the basis of logical Sawing Process, weakening link and error compensation link are added, existing band-saw machine tool can be solved in sawing process
The saw band of presence vibrates (flutter), wanders off and deform, and causes the problem of workpiece sawing quality is decreased obviously, can break through existing sawing
The sawing limit of accuracy of technique, sawing precision and surface quality are significantly improved, " to saw for car ", the mesh of " to saw for milling " can be reached
's.Therefore, with significant economic, society and environmental benefit.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is Fig. 1 A direction views；
Fig. 3 is Fig. 2 B-B profiles；
Fig. 4 is Fig. 2 C-C profiles；
Fig. 5 is numerical control saw cutting process control block diagram of the invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, the numerical control band sawing machine with weakening and correcting controller, including saw frame 1, active band saw wheel 2,
Main motion servomotor 3, feed mechanism 4, feed servo motor 5, lathe bed 6, feeding lead 7, driven band saw wheel 8, current vortex
Displacement transducer 9, strainer 11, deviation correcting device 12, saw band 13, vibration damping device 14 and clamp system 15.The work of sawing operation
It is as principle：Workpiece 10 is clamped on the workbench of lathe bed 6 by clamp system 15；Be provided with saw frame 1 active band saw wheel 2 and from
Dynamic band saw wheel 8；The connection active of saw band 13 band saw wheel 2 and driven band saw wheel 8, and be tensioned by strainer 11；Main motion servo electricity
The driving active of machine 3 band saw wheel 2, makes saw band 13 produce main motion；Feed servo motor 5 drives feed mechanism 4；The band of feed mechanism 4
Dynamic saw frame 1 produces feed motion, realizes the sawing operation of workpiece；Saw frame 1 constitutes sliding pair with feeding lead 7, and feeding is oriented to
Post 7 play the guiding role to the feeding of saw frame 1；Two deviation correcting devices 12 are respectively provided with the detection sawing of saw band 13 of eddy current displacement sensor 9
The displacement at part two ends, and it is input to vibration values and sawing error that control module calculates saw band；On the one hand, the He of strainer 11
Vibration damping device 14 is jointly controlled by control module, eliminates the vibration of saw band；On the other hand, by two bases of deviation correcting device 12
Detect that obtained saw band wanders off and deformation in real time, carry out on-line automatic correction.
As shown in figure 3, deviation correcting device 12 is by deviation-rectifying servo motor 12-1, the first leading screw and nut mechanism 12-2, guide pad 12-
3rd, swing rod 12-4 and bearing pin 12-5 compositions；Deviation-rectifying servo motor 12-1 is arranged on saw frame 1, and drives the first leading screw and nut mechanism
12-2；Guide pad 12-3 is fixed on the first leading screw and nut mechanism 12-2 nut；Swing rod 12-4 one end and guide pad 12-3
Fixed, the other end is hinged by bearing pin 12-5 with saw frame 1；In the guide groove that the insertion of saw band 13 guide pad 12-3 is opened up；Swing rod 12-
4 swing around bearing pin 12-5, the guide pad 12-3 on swing rod is produced the fine motion of two frees degree of rotation and translation, can adjust saw band
Displacement and angle of deviation, realize saw band deflection correction and error compensation function.In order to increase rigidity, connect in guide pad and swing rod
The nut junction of the place of connecing and guide pad and the first leading screw and nut mechanism is welded with reinforcement.
As shown in figure 4, strainer 11 is by tensioning servomotor 11-1, the second leading screw and nut mechanism 11-2 and pinch rollers
11-3 is constituted.It is tensioned servomotor 11-1 and drives the second leading screw and nut mechanism 11-2；Pinch rollers 11-3 is hinged on the second screw mandrel
On nut body 11-2 nut, and contacted with saw band 13, so as to adjust the tightness of saw band.
Being a difference in that with existing band-saw machine tool of the invention：
(1) in structure, in order to be able to significantly improve sawing quality, break through existing Sawing Process and be difficult to put forward high-precision technology
Bottleneck, realization is " to saw for car ", the purpose of " to saw for milling ", is additionally arranged vibration damping device and deviation correcting device, optimizes strainer.
Jointly controlling for the saw band Vibration Condition obtained according to detection, implementation vibration damping device and strainer, eliminates the vibration of saw band, carries
High sawing surface quality；Wandered off and deformation according to the saw band that detection is obtained, start deviation correcting device, saw band can be made to produce rotation
With the fine motion of two frees degree of translation, the error online compensation of saw band automatic deviation correction and sawing process is carried out.Said structure measure,
Sawing precision and surface quality can be greatly improved.
(2) in technique, common Sawing Process is improved, weakening link and error compensation link is added.According to saw band
The testing result of vibration, is jointly controlled by vibration damping device and strainer, eliminates vibration；According to the inspection of saw band kinematic error
Result is surveyed, is automatically adjusted by deviation correcting device, progress can not be vibrated, wanders off and deform to saw band by solving existing Sawing Process
Real-time processing problem, breaches the sawing limit of accuracy of existing Sawing Process, can be really achieved " to saw for car ", " to saw for milling "
Purpose.
Numerical control saw cutting process flow, as shown in Figure 5.Main motion servomotor, feed servo motor, are each configured with motor
Controller and photoelectric speed detection means.The displacement at saw band sawing portion two ends is detected by eddy current displacement sensor,
And input control module calculates the vibration values and offset error of saw band.Pass through vibration damping device, deviation correcting device, strainer pair respectively
The operation conditions of saw band is controlled.After start, optimal operation and control parameter are determined by parameter optimization controller.Main fortune
Dynamic control loop, by photoelectric speed detection means and main motion servomotor, the speed to band saw wheel is controlled, to ensure
Run in the parameter area of optimization.Feed Motion Control loop, it is right by photoelectric speed detection means and feed servo motor
The feed speed of workbench is controlled, to ensure to run in the parameter area of optimization.Saw band situation control loop, passes through electricity
Eddy displacement sensor is controlled by vibration damping device, deviation correcting device and deviation correcting device, tensioning controller and strainer respectively
System, makes saw band be in optimal sawing state.Wherein, vibration damping device is made up of ultrasonic wave controller and ultrasonic transducer,
The saw band Vibration Condition that ultrasonic wave controller is detected by eddy current displacement sensor, produces corresponding ultrasonic pulsative signal, control
Ultrasonic transducer processed is acted in saw band, eliminates the vibration of saw band.
Claims (5)
1. the numerical control band sawing machine with weakening and correcting controller, including saw frame, active band saw wheel, main motion servomotor, enter
To mechanism, feed servo motor, lathe bed, feeding lead, driven band saw wheel, eddy current displacement sensor, strainer, correction
Device, saw band, vibration damping device and clamp system, it is characterised in that：Described clamp system by Workpiece clamping lathe bed work
On platform；Active band saw wheel and driven band saw wheel are installed on described saw frame；Described saw band connects active band saw wheel and driven
Band saw wheel, and be tensioned by strainer；Described main motion servomotor driving active band saw wheel；Described feed servo motor
Feed mechanism is driven, feed mechanism drives saw frame to produce feed motion；Saw frame constitutes sliding pair with feeding lead；Two corrections
The displacement at eddy current displacement sensor detection saw band sawing portion two ends is respectively provided with device, and is input to control module and calculates saw
The vibration values and sawing error of band；Described strainer, deviation correcting device and vibration damping device is by control module control；Described
Deviation correcting device is made up of deviation-rectifying servo motor, the first leading screw and nut mechanism, guide pad, swing rod and bearing pin；Described deviation-rectifying servo
Motor is arranged on saw frame, and drives the first leading screw and nut mechanism；Described guide pad is fixed on the first leading screw and nut mechanism
On nut；One end of swing rod is fixed with guide pad, and the other end is hinged by bearing pin with saw frame；What saw band insertion guide pad was opened up leads
Into groove.
2. the numerical control band sawing machine according to claim 1 with weakening and correcting controller, it is characterised in that：Described leads
Reinforcement is welded with to the nut junction of block and swing rod junction and guide pad and the first leading screw and nut mechanism.
3. the numerical control band sawing machine according to claim 1 with weakening and correcting controller, it is characterised in that：Described
Tight mechanism is made up of tensioning servomotor, the second leading screw and nut mechanism and pinch rollers；Described tensioning servomotor driving the
Two leading screw and nut mechanisms；Described pinch rollers are hinged on the nut of the second leading screw and nut mechanism, and contacted with saw band.
4. the numerical control band sawing machine according to claim 1 with weakening and correcting controller, it is characterised in that：Described disappears
Vibrating device is made up of ultrasonic wave controller and ultrasonic transducer；Ultrasonic wave controller is detected by eddy current displacement sensor
Saw band Vibration Condition, produce corresponding ultrasonic pulsative signal, control ultrasonic transducer is acted in saw band.
5. the numerical control band sawing machine according to claim 1 with weakening and correcting controller, it is characterised in that：Described master
Motion servo motor and feed servo motor are each equipped with electric machine controller and photoelectric speed detection means；Described control module
Including parameter optimization controller, deviation correcting device and tensioning controller；Parameter optimization controller optimization is run and control parameter, is entangled
Inclined controller error correct device, tensioning controller control strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104970.5A CN105665822B (en) | 2016-02-25 | 2016-02-25 | Numerical control band sawing machine with weakening and correcting controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104970.5A CN105665822B (en) | 2016-02-25 | 2016-02-25 | Numerical control band sawing machine with weakening and correcting controller |
Publications (2)
| Publication Number | Publication Date |
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| CN105665822A CN105665822A (en) | 2016-06-15 |
| CN105665822B true CN105665822B (en) | 2017-10-03 |
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| CN107020418B (en) * | 2017-04-16 | 2018-11-06 | 浙江仁工机械有限公司 | A kind of band sawing machine device reducing saw band vibration |
| TWI684490B (en) * | 2019-01-24 | 2020-02-11 | 國立虎尾科技大學 | Saw band skew detection device of band saw machine and application method thereof |
| CN109954938B (en) * | 2019-03-11 | 2020-02-28 | 杭州电子科技大学 | Band saw cutting equipment for major engineering site and saw cutting method thereof |
| CN109967793B (en) * | 2019-03-11 | 2020-03-03 | 杭州电子科技大学 | Sawing equipment and sawing method for heavy and extra-large structural member |
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| CN110899847A (en) * | 2019-11-29 | 2020-03-24 | 湖南三特机械制造有限公司 | Shaft sleeve cutting device |
| CN112025817A (en) * | 2020-08-25 | 2020-12-04 | 广东东方广厦模块化建筑有限公司 | Composite board cutting device |
| CN111958047A (en) * | 2020-09-02 | 2020-11-20 | 湖南泰嘉新材料科技股份有限公司 | Band saw blade accumulated chip removing device and removing method |
| CN112548220B (en) * | 2020-11-24 | 2022-03-29 | 江苏汉田机械工业有限公司 | Damping type saw band clamping mechanism of high-speed band sawing machine |
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