CN105665822A - Numerical control band sawing machine with vibration attenuation and deviation rectification control device - Google Patents
Numerical control band sawing machine with vibration attenuation and deviation rectification control device Download PDFInfo
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- CN105665822A CN105665822A CN201610104970.5A CN201610104970A CN105665822A CN 105665822 A CN105665822 A CN 105665822A CN 201610104970 A CN201610104970 A CN 201610104970A CN 105665822 A CN105665822 A CN 105665822A
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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)
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Abstract
The invention discloses a numerical control band sawing machine with a vibration attenuation and deviation rectification control device. An existing band sawing machine tool has the problems that a saw band vibrates, deviates and deforms, and consequently the workpiece saw cutting quality is lowered. A clamping mechanism clamps a workpiece to a workbench of a machine body. A saw band is tightened through a tightening mechanism. A main movement servo motor drives a drive saw band wheel. A feeding servo motor drives a feeding mechanism so as to drive a saw frame. Two deviation rectification devices are provided with eddy current displacement sensors for detecting displacement of the two ends of the saw cutting part of the saw band and inputting the detection result into a control module for calculating the vibration value and the saw cutting error of the saw band. The tightening mechanism, the deviation rectification devices and a vibration attenuation device are all controlled by the control module. By the adoption of the numerical control band sawing machine with the vibration attenuation and deviation rectification control device, according to the detection result of saw band vibration, the vibration attenuation device and the tightening mechanism are jointly controlled, and vibration is eliminated; and according to the detection result of the saw band movement error, automatic adjustment is achieved through the deviation rectification devices, so that the saw cutting accuracy and surface quality are improved greatly.
Description
Technical field
The invention belongs to electromechanical integration technology area, it is specifically related to a kind of band and disappears and shake and the numerical control band sawing machine of correction control device, disappear and shake with correction control device for the vibration elimination of band saw in sawing process and error compensation.
Background technology
Numerical control band saw equipment is one of first-selected equipment of component preliminary working in the modern mechanical manufacturing industry such as automobile, aircraft and boats and ships, and the working accuracy of this equipment, efficiency, reliability and level of automation directly have influence on production benefit and the quality of whole component. Owing to the sawing cutter of numerical control band sawing machine is saw band, i.e. flexible cutter, in sawing process unavoidably because workpiece material is uneven, the abrasion of machine tool motion part, the change of operating parameter and cause saw band vibration (flutter), wander off and be out of shape, cause the decline of workpiece sawing precision and surface quality. Existing band saw equipment does not have similar disappearing to shake and correction control device, makes the raising of sawing precision become technical bottleneck. Therefore, need one to disappear and shake and correction control device, the in real time vibration (flutter) of detection saw band, wander off and distortion situation, disappear online shake, automatic deviation correction, break through the sawing precision limit of existing sawing technique, it is to increase the sawing precision of workpiece and surface quality.
Summary of the invention
The present invention is directed to saw band vibration (flutter) that existing band saw lathe exists in sawing process, wander off and be out of shape, workpiece sawing quality is caused obviously to decline, and existing sawing technique is difficult to break through the problem of the sawing precision limit, it is provided that a kind of numerical control band sawing machine disappears and shakes and the correction structure of control device and corresponding process program.
The technical solution used in the present invention is:
The present invention comprises saw frame, initiatively band saw wheel, main motion servomotor, feeding mechanism, feed servo motor, lathe bed, feeding guidepost, driven band saw wheel, eddy current displacement sensor, tensioning mechanism, deviation correcting device, saw band, vibration damping device and clamping mechanism. Described clamping mechanism by Workpiece clamping on the worktable of lathe bed; Described saw frame is provided with initiatively band saw wheel and driven band saw wheel;Described saw band connects initiatively band saw wheel and driven band saw wheel, and by the tensioning of tensioning mechanism; Described main motion driven by servomotor is band saw wheel initiatively; Described feed servo motor drives feeding mechanism, and feeding mechanism drives saw frame to produce feeding movement; Saw frame and feeding guidepost form pair of sliding; Two deviation correcting devices all arrange the displacement at eddy current displacement sensor detection saw band sawing part two ends, and is input to vibration values and sawing error that control module calculates saw band; Described tensioning mechanism, deviation correcting device and vibration damping device are by control module control. Described deviation correcting device is made up of deviation-rectifying servo motor, the first leading screw and nut mechanism, orienting lug, fork and bearing pin; Described deviation-rectifying servo motor is arranged on saw frame, and drives the first leading screw and nut mechanism; Described orienting lug is fixed on the nut of the first leading screw and nut mechanism; One end and the orienting lug of fork are fixed, and the other end is hinged by bearing pin and saw frame; Saw band embeds in the guide path that orienting lug is offered.
The nut junction of described orienting lug and fork junction and orienting lug and the first leading screw and nut mechanism is all welded with stiffening web.
Described tensioning mechanism is made up of tensioning servomotor, the 2nd leading screw and nut mechanism and pinch rollers. Described tensioning driven by servomotor the 2nd leading screw and nut mechanism; Described pinch rollers is hinged on the nut of the 2nd leading screw and nut mechanism, and contacts with saw band.
Described vibration damping device is made up of ultrasonic wave controller and ultrasonic wave transducer device; The saw band vibration situation that ultrasonic wave controller is detected by eddy current displacement sensor, produces corresponding ultrasonic pulsative signal, and control ultrasonic wave transducer device acts in saw band.
Described main motion servomotor and feed servo motor are all configured with controller and photoelectric speed detection device; Described control module comprises 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 controls tensioning mechanism.
The useful effect of the present invention: the detected result that the present invention vibrates according to saw band, is jointly controlled by vibration damping device and tensioning mechanism, eliminates vibration; Detected result according to saw band motion error, automatically adjust by deviation correcting device, namely on common sawing Process ba-sis, adding disappears shakes link and error compensation link, the saw band that the energy existing band saw lathe of solution exists in sawing process is vibrated (flutter), is wandered off and be out of shape, cause the problem that workpiece sawing quality obviously declines, the sawing precision limit of existing sawing technique can be broken through, significantly improve sawing precision and surface quality, the object of " to saw for car ", " to saw for milling " can be reached. Therefore, there is significant economy, society and environmental benefit.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 2;
Fig. 4 is the C-C sectional view of Fig. 2;
Fig. 5 is the numerical control saw cutting process control block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As illustrated in fig. 1 and 2, the numerical control band sawing machine that band disappears and shakes with correction control device, comprises saw frame 1, initiatively band saw wheel 2, main motion servomotor 3, feeding mechanism 4, feed servo motor 5, lathe bed 6, feeding guidepost 7, driven band saw wheel 8, eddy current displacement sensor 9, tensioning mechanism 11, deviation correcting device 12, saw band 13, vibration damping device 14 and clamping mechanism 15.The principle of work of sawing operation is: workpiece 10 is clamped on the worktable of lathe bed 6 by clamping mechanism 15; Saw frame 1 is provided with initiatively band saw wheel 2 and driven band saw wheel 8; Saw band 13 connects initiatively band saw wheel 2 and driven band saw wheel 8, and by tensioning mechanism 11 tensioning; Main motion servomotor 3 drives initiatively band saw wheel 2, makes saw band 13 produce main motion; Feed servo motor 5 drives feeding mechanism 4; Feeding mechanism 4 drives saw frame 1 to produce feeding movement, it is achieved the sawing operation of workpiece; Saw frame 1 forms, with feeding guidepost 7, pair of sliding, and saw frame 1 feeding is play the guiding role by feeding guidepost 7; Two deviation correcting devices 12 all arrange the displacement that eddy current displacement sensor 9 detects saw band 13 sawing part two ends, and are input to vibration values and sawing error that control module calculates saw band; On the one hand, tensioning mechanism 11 and vibration damping device 14 are jointly controlled by control module, eliminate the vibration of saw band; On the other hand, wander off and distortion situation according to detecting the saw band obtained in real time by two deviation correcting devices 12, carry out on-line automatic correction.
As shown in Figure 3, deviation correcting device 12 is made up of deviation-rectifying servo motor 12-1, the first leading screw and nut mechanism 12-2, orienting lug 12-3, fork 12-4 and bearing pin 12-5; Deviation-rectifying servo motor 12-1 is arranged on saw frame 1, and drives the first leading screw and nut mechanism 12-2; Orienting lug 12-3 is fixed on the nut of the first leading screw and nut mechanism 12-2; One end and the orienting lug 12-3 of fork 12-4 fix, and the other end is hinged by bearing pin 12-5 and saw frame 1; Saw band 13 embeds in the guide path that orienting lug 12-3 offers; Fork 12-4 swings around bearing pin 12-5, makes the orienting lug 12-3 on fork produce the fine motion rotating and translating two degree of freedom, the displacement of adjustable saw band and deflection angle, it is achieved the function of the correction of saw band deflection and error compensation. In order to increase rigidity, all it is welded with stiffening web in the nut junction of orienting lug and fork junction and orienting lug and the first leading screw and nut mechanism.
As shown in Figure 4, tensioning mechanism 11 is made up of tensioning servomotor 11-1, the 2nd leading screw and nut mechanism 11-2 and pinch rollers 11-3. Tensioning servomotor 11-1 drives the 2nd leading screw and nut mechanism 11-2; Pinch rollers 11-3 is hinged on the nut of the 2nd leading screw and nut mechanism 11-2, and contacts with saw band 13, thus regulates the tightness of saw band.
The difference of the present invention and existing band saw lathe is:
(1) structurally, in order to sawing quality can be significantly improved, break through the technical bottleneck that existing sawing technique is difficult to improve precision, it is achieved the object of " to saw for car ", " to saw for milling ", set up vibration damping device and deviation correcting device, optimized tensioning mechanism. According to jointly controlling of the saw band vibration situation that detection obtains, enforcement vibration damping device and tensioning mechanism, eliminate the vibration of saw band, it is to increase sawing surface quality; Wander off and distortion situation according to the saw band that detection obtains, start deviation correcting device, saw band can be made to produce the fine motion rotating and translating two degree of freedom, carry out the error online compensation of saw band automatic deviation correction and sawing process. Said structure measure, can improve sawing precision and surface quality greatly.
(2) in technique, improving common sawing technique, adding disappears shakes link and error compensation link. Detected result according to saw band vibration, is jointly controlled by vibration damping device and tensioning mechanism, eliminates vibration; Detected result according to saw band motion error, automatically adjust by deviation correcting device, solve existing sawing technique saw band to be vibrated, wander off and distortion carries out real-time processing problem, breach the sawing precision limit of existing sawing technique, can really reach the object of " to saw for car ", " to saw for milling ".
Numerical control saw cutting process flow process, as shown in Figure 5. Main motion servomotor, feed servo motor, be configured with controller and photoelectric speed detection device respectively. By eddy current displacement sensor, the displacement at saw band sawing part two ends is detected, and input control module calculates vibration values and the offset error of saw band. By vibration damping device, deviation correcting device, tensioning mechanism, the operation conditions of saw band is controlled respectively. After start, determine best operation and control parameter by parameter optimization controller. Main motion control loop, is detected device and main motion servomotor, the speed of band saw wheel is controlled by photoelectric speed, runs in the parameter area optimized to ensure. Feed Motion Control loop, is detected device and feed servo motor, the speed of feed of worktable is controlled by photoelectric speed, runs in the parameter area optimized to ensure. Saw band situation control loop, is controlled by vibration damping device, deviation correcting device and deviation correcting device, tensioning controller and tensioning mechanism respectively by eddy current displacement sensor, makes saw band be in best sawing state. Wherein, vibration damping device is made up of ultrasonic wave controller and ultrasonic wave transducer device, the saw band vibration situation that ultrasonic wave controller is detected by eddy current displacement sensor, produces corresponding ultrasonic pulsative signal, control ultrasonic wave transducer device acts in saw band, eliminates the vibration of saw band.
Claims (5)
1. the numerical control band sawing machine that band disappears and shakes with correction control device, comprise saw frame, initiatively band saw wheel, main motion servomotor, feeding mechanism, feed servo motor, lathe bed, feeding guidepost, driven band saw wheel, eddy current displacement sensor, tensioning mechanism, deviation correcting device, saw band, vibration damping device and clamping mechanism, it is characterised in that: described clamping mechanism by Workpiece clamping on the worktable of lathe bed; Described saw frame is provided with initiatively band saw wheel and driven band saw wheel; Described saw band connects initiatively band saw wheel and driven band saw wheel, and by the tensioning of tensioning mechanism; Described main motion driven by servomotor is band saw wheel initiatively; Described feed servo motor drives feeding mechanism, and feeding mechanism drives saw frame to produce feeding movement; Saw frame and feeding guidepost form pair of sliding; Two deviation correcting devices all arrange the displacement at eddy current displacement sensor detection saw band sawing part two ends, and is input to vibration values and sawing error that control module calculates saw band; Described tensioning mechanism, deviation correcting device and vibration damping device are by control module control; Described deviation correcting device is made up of deviation-rectifying servo motor, the first leading screw and nut mechanism, orienting lug, fork and bearing pin; Described deviation-rectifying servo motor is arranged on saw frame, and drives the first leading screw and nut mechanism; Described orienting lug is fixed on the nut of the first leading screw and nut mechanism; One end and the orienting lug of fork are fixed, and the other end is hinged by bearing pin and saw frame; Saw band embeds in the guide path that orienting lug is offered.
2. the numerical control band sawing machine that band according to claim 1 disappears and shakes with correction control device, it is characterised in that: the nut junction of described orienting lug and fork junction and orienting lug and the first leading screw and nut mechanism is all welded with stiffening web.
3. the numerical control band sawing machine that band according to claim 1 disappears and shakes with correction control device, it is characterised in that: described tensioning mechanism is made up of tensioning servomotor, the 2nd leading screw and nut mechanism and pinch rollers; Described tensioning driven by servomotor the 2nd leading screw and nut mechanism;Described pinch rollers is hinged on the nut of the 2nd leading screw and nut mechanism, and contacts with saw band.
4. the numerical control band sawing machine that band according to claim 1 disappears and shakes with correction control device, it is characterised in that: described vibration damping device is made up of ultrasonic wave controller and ultrasonic wave transducer device; The saw band vibration situation that ultrasonic wave controller is detected by eddy current displacement sensor, produces corresponding ultrasonic pulsative signal, and control ultrasonic wave transducer device acts in saw band.
5. the numerical control band sawing machine that band according to claim 1 disappears and shakes with correction control device, it is characterised in that: described main motion servomotor and feed servo motor are all configured with controller and photoelectric speed detection device; Described control module comprises 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 controls tensioning mechanism.
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 |
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| 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 |
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| CN105665822A true CN105665822A (en) | 2016-06-15 |
| CN105665822B CN105665822B (en) | 2017-10-03 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020418A (en) * | 2017-04-16 | 2017-08-08 | 浙江仁工机械有限公司 | A kind of band sawing machine device for reducing saw band vibration |
| CN109954938A (en) * | 2019-03-11 | 2019-07-02 | 杭州电子科技大学 | A kind of Important Project scene band saw cut is equipped and its sawing method |
| CN109967793A (en) * | 2019-03-11 | 2019-07-05 | 杭州电子科技大学 | A kind of particularly serious structural member sawing equipment and its sawing method |
| CN110653416A (en) * | 2019-10-25 | 2020-01-07 | 佛山市众禾铝业有限公司 | Automatic sawtooth machine |
| 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 |
| CN110899847A (en) * | 2019-11-29 | 2020-03-24 | 湖南三特机械制造有限公司 | Shaft sleeve 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 |
| 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 |
| CN112548220A (en) * | 2020-11-24 | 2021-03-26 | 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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| CN203830835U (en) * | 2014-04-23 | 2014-09-17 | 杭州电子科技大学 | Metal band saw saw-cutting device based on double pulse characteristics |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020418A (en) * | 2017-04-16 | 2017-08-08 | 浙江仁工机械有限公司 | A kind of band sawing machine device for 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 |
| CN109954938A (en) * | 2019-03-11 | 2019-07-02 | 杭州电子科技大学 | A kind of Important Project scene band saw cut is equipped and its sawing method |
| CN109967793A (en) * | 2019-03-11 | 2019-07-05 | 杭州电子科技大学 | A kind of particularly serious structural member sawing equipment and its sawing method |
| 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 |
| CN110653416A (en) * | 2019-10-25 | 2020-01-07 | 佛山市众禾铝业有限公司 | Automatic sawtooth machine |
| 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 |
| CN112548220A (en) * | 2020-11-24 | 2021-03-26 | 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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| CN105665822B (en) | 2017-10-03 |
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