CN102847762B - Numerical control bending machine - Google Patents
Numerical control bending machine Download PDFInfo
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- CN102847762B CN102847762B CN201210356537.2A CN201210356537A CN102847762B CN 102847762 B CN102847762 B CN 102847762B CN 201210356537 A CN201210356537 A CN 201210356537A CN 102847762 B CN102847762 B CN 102847762B
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Abstract
The invention belongs to the technical field of bending machines, and mainly relates to a numerical control bending machine used for bending and molding of multiple radian space rectangular steel tube construction members in a passenger car body framework. The numerical control bending machine has multiple radians on one die, is high in efficiency and accuracy, does not use a hydraulic system, and comprises a bed body, a transverse feeding mechanism, a longitudinal reinforcement mechanism and a bending mechanism, a slideway is arranged on the bed body, a sliding block is arranged on the slideway, the sliding block is connected with the transverse feeding mechanism, the bending mechanism and the longitudinal reinforcement mechanism are fixed on two sides of the bed body, the bending mechanism is connected with the longitudinal reinforcement mechanism, and the transverse feeding mechanism comprises a first motor, a first ball screw and a material ejecting support seat. The first motor is connected with the material ejecting support seat through the first ball screw, the first ball screw comprises a first nut, a nut sleeve and a lead screw, the lead screw is matched with the nut to be sleeved together, the nut and the nut sleeve are matched to be fixed together, the nut sleeve is fixedly connected with the sliding block, and the material ejecting support seat is fixed on the sliding block.
Description
Technical field
The invention belongs to bending machine technical field, relate generally to a kind of CNC tube bending machine for the rectangle steel tube component brake forming of bus body skeleton multi-radian space.
Background technology
The bending machine that existing market is used, what the overwhelming majority was used is the CNC tube bending machine of all-hydraulic transmission, the phenomenons such as the specific (special) requirements that must work under constant voltage due to the intrinsic characteristic of hydraulic pressure and electrohydraulic servo valve inevitably produces it to meet by chance, step-out, out of control, low precision.
Hydraulic numerical control bent tube technique, at work, because member changed in change arc stage and curved little its planted agent of arc part, due to the software feature of hydraulic oil, can not stretch by data demand is stable hydraulic jack, thereby has affected the uniformity of the capable one-tenth of arc component.
The CNC tube bending machine of all-hydraulic transmission, requires technical staff to input the full coordinate data of drawing, due to what input, is whole workpiece size, is difficult for finding workpiece section particular location, when finishing, cannot confirm to need the region of finishing.
The CNC tube bending machine of all-hydraulic transmission, digital control system adopts PC to control, and is not numerical control truly, and PC and control amplifier are away from main frame very inconvenient use in house, easily cause line signal distortion out of control.
The CNC tube bending machine of all-hydraulic transmission, exists fluid pressure line to leak, high temperature, and high pressure causes workpiece accuracy to be difficult to guarantee the in the situation that of leakage, high temperature, high pressure, and often maintenance is adjusted, and maintenance cost is high relatively.
On market, also there is part to make bending machine by pressure roller form, it is substantially all to reach on a workpiece and realize a plurality of radians with mold exchange more, so-called mould one arc, bright prospects to passenger vehicle on present market, bus body skeleton is the space in multi-radian space, existing technology in efficiency and precision not satisfying the demands.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides an a kind of mould multi sphere, efficiency is high, and precision is high, does not use the CNC tube bending machine of hydraulic system.
For overcoming the technical scheme that above-mentioned technical problem the present invention takes, be: CNC tube bending machine, comprise lathe bed, transverse feed mechanism, longitudinal force-increasing mechanism and pipe bending mechanism, on lathe bed, be provided with slideway, on slideway, be provided with sliding shoe, sliding shoe is connected with transverse feed mechanism, the both sides of lathe bed are fixed with pipe bending mechanism and longitudinal force-increasing mechanism, and pipe bending mechanism is connected with longitudinal force-increasing mechanism
Described transverse feed mechanism comprises the first motor, the first ball-screw, liftout bearing;
The first described motor is connected with liftout bearing by the first ball-screw;
The first described ball-screw comprises the first nut, nut sleeve, screw mandrel, and screw mandrel and nut are suitable to be set in together, and nut sleeve and nut are suitable to be fixed together;
Described nut sleeve is fixedly connected with sliding shoe, is fixed with liftout bearing on described sliding shoe.
The first described motor is connected with the first little synchronizing wheel, and the first ball-screw is connected with first synchronizing wheel, and the first little synchronizing wheel is connected with first synchronizing wheel by the first Timing Belt.
Described longitudinal force-increasing mechanism comprises the first fixed mount, the second motor, the second ball-screw, angled-lift splits, the first scroll wheel, transmission arm,
The first described fixed mount is fixed on lathe bed, and the first fixed mount inside is provided with slideway, is provided with and tiltedly carves piece on slideway, and the upper and lower surface of the first fixed mount is symmetrically arranged with chute;
The described piece of tiltedly carving is connected with the second motor by the second ball-screw;
The second described ball-screw comprises the second nut, the second screw mandrel, and the described piece inside of tiltedly carving is provided with through hole, and one end of through hole is fixed with the second nut, and the second nut sleeve is contained on the second screw mandrel, and the second screw mandrel is connected with the second motor,
The first described scroll wheel is positioned at tiltedly carves the place ahead, inclined-plane of piece and the inside of the first fixed mount, the first scroll wheel is sleeved on the 3rd axle, the two ends of the 3rd axle are positioned at the chute of the first fixed mount, and the two ends of the 3rd axle are all hinged with transmission arm, and transmission arm is connected with pipe bending mechanism.
The one end that is fixed with back-moving spring on the first described fixed mount, the other end of back-moving spring is fixed on transmission arm.
The second described motor is connected with the second little synchronizing wheel, and the second ball-screw is connected with second largest synchronizing wheel, and the second little synchronizing wheel is connected with second largest synchronizing wheel by the second Timing Belt.
Described pipe bending mechanism comprises the second fixed mount, swing mechanism and fixed idler whell, the second described fixed mount one side is fixed on lathe bed, the second fixed mount is that the two boards of space parallel forms, in the middle of the second fixed mount opposite side, be fixed with the second axle, near on a side fixed mount of lathe bed, be fixed with the first axle, described fast pulley hinged with the second axle on, described swing mechanism comprises swing span, central roller, squeegee roller and the 4th axle, described swing span is " V " structure, the two ends of described swing span are respectively equipped with the 4th axle and central roller, the mid portion of swing span is provided with squeegee roller, described swing span near lathe bed and by central roller hinged with the first axle on, described squeegee roller, central roller and fixed idler whell are with on triangular pattern setting and the second fixed mount, the transmission arm that the two ends of the 4th described axle and the 3rd axle two ends arrange is hinged respectively.
The beneficial effect that the present invention compared with prior art has is:
1, transmission principle and the control system of lathe maturation have been adopted.Using digital control system, servomotor and ball screw assembly,, form control and the transmission of lathe, is the lathe Reliable guarantee in high reliability and high stability for a long time.
2, before bending, only need operating personnel, according to the different segmental arcs of workpiece profile, corresponding two Dimension Numerical Value and velocity amplitude segmentation programmed, the data adjustment while being beneficial to the finishing of arc part segmental arc, while being out of shape from arcuate member, stressing conditions is analyzed, and the program that symmetrical arc component need be worked out is asymmetric.Input bending machine digital control system, after trying curved adjustment programme, just can batch curved workpieces.
3, CNC tube bending machine, does not exist fluid pressure line to leak, high temperature, and, there is not the frequent maintenance adjustment of hydraulic efficiency servo-valve in high pressure.It is (X-axis) feeding employing AC servo motor, precision ball screw transmission laterally, and precision reaches 0.01mm; Longitudinally (Z axis) feeding adopts high power AC servomotor and high pulling torque ball-screw, and precision reaches 0.1mm; High-precision AC servo motor consubstantiality are equipped with electro-optical feedback arrangement, and motor and system are realized to high-precision control, long-term stable operation, and maintenance cost is extremely low.
4, strong adaptability.The numerical-control bending technique that the machine is used, various cold bending rectangle steel pipes and the section bar of applicable Bus Frame member.The strain adjustment of material is capable of regulating as long as whole plus-minus is mended the amount of tasting.
5, working (machining) efficiency is high.Complete workpiece of first order buckling only needs about one minute to two minutes.
Accompanying drawing explanation
Fig. 1 is plan structure schematic diagram of the present invention;
Fig. 2 is main TV structure schematic diagram of the present invention;
Fig. 3 is the structural representation that pipe bending mechanism of the present invention is connected with longitudinal force-increasing mechanism;
Fig. 4 is the structure for amplifying schematic diagram that pipe bending mechanism of the present invention is connected with longitudinal force-increasing mechanism;
Fig. 5 is the structural representation that removes respectively the first fixed mount and the second fixed mount that pipe bending mechanism of the present invention is connected with longitudinal force-increasing mechanism;
Fig. 6 is transverse feed mechanism structural representation of the present invention;
Fig. 7 is the side-looking structural representation of pipe bending mechanism of the present invention;
In figure, 1 is lathe bed, 2 is transverse feed mechanism, 3 is longitudinal force-increasing mechanism, 4 is pipe bending mechanism, 5 is slideway, 6 is sliding shoe, 7 is the first motor, 8 is the first ball-screw, 9 is liftout bearing, 10 is the first nut, 11 is nut sleeve, 12 is screw mandrel, 13 is the first little synchronizing wheel, 14 is first synchronizing wheel, 15 is the first Timing Belt, 16 is the first fixed mount, 17 is the second motor, 18 is the second ball-screw, 19 is angled-lift splits, 20 is the first scroll wheel, 21 is transmission arm, 22 is the second slideway, 23 for tiltedly carving piece, 24 is chute, 25 is the second nut, 26 is the second screw mandrel, 27 is through hole, 28 is the 3rd axle, 29 is back-moving spring, 30 is the second little synchronizing wheel, 31 is second largest step wheel, 32 is the second Timing Belt, 33 is the second fixed mount, 34 is swing mechanism, 35 is fixed idler whell, 36 is the first axle, 37 is the second axle, 38 is swing span, roller centered by 39, 40 is squeegee roller, 41 is the 4th axle.
The specific embodiment
As shown in Fig. 1-7, CNC tube bending machine, comprise lathe bed 1, transverse feed mechanism 2, longitudinal force-increasing mechanism 3 and pipe bending mechanism 4, on lathe bed 1, be provided with slideway 5, on slideway 5, be provided with sliding shoe 6, sliding shoe 6 is connected with transverse feed mechanism 2, and the both sides of lathe bed 1 are fixed with pipe bending mechanism 4 and longitudinal force-increasing mechanism 3, pipe bending mechanism 4 is connected with longitudinal force-increasing mechanism 3
Described transverse feed mechanism 2 comprises the first motor 7, the first ball-screw 8, liftout bearing 9;
The first described motor 7 is connected with liftout bearing 9 by the first ball-screw 8;
The first described ball-screw 8 comprises the first nut 10, nut sleeve 11, the first screw mandrel 12, the first screw mandrels 12 and first nut 10 is suitable is set in together, nut sleeve 11 and first nut 10 is suitable is fixed together;
Described nut sleeve 11 is fixed together with sliding shoe 6, on described sliding shoe 6, is fixed with liftout bearing 9.
The first described motor 7 is connected with the first little synchronizing wheel 13, the first ball wire 8 thick sticks and is connected with the little synchronizing wheel of first synchronizing wheel 14, the first 13 and is connected with first synchronizing wheel 14 by the first Timing Belt 15.
Described longitudinal force-increasing mechanism 3 comprises the first fixed mount 16, the second motor 17, the second ball-screw 18, angled-lift splits 19, the first scroll wheel 20, transmission arm 21, the first described fixed mount 16 is fixed on lathe bed 1, the first fixed mount 16 inside are provided with the second slideway 22, on the second slideway 22, be provided with the upper and lower surface of tiltedly carving piece 23, the first fixed mounts 16 and be symmetrically arranged with chute 24; The described piece 23 of tiltedly carving is connected with the second motor 17 by the second ball-screw 18;
The second described ball-screw 18 comprises the second nut 25, the second screw mandrel 26, described piece 23 inside of tiltedly carving are provided with through hole 27, and one end of through hole 27 is fixed with the second nut 25, the second nuts 25 and is sleeved on the second screw mandrel 26, the second screw mandrel 26 is connected with the second motor 17
The first described scroll wheel 20 is positioned at tiltedly carves the place ahead, inclined-plane of piece 23 and the inside of the first fixed mount 16, the first scroll wheel 20 is set with the 3rd axle 28, the two ends of the 3rd axle 28 are positioned at the chute 24 of the first fixed mount 16, the two ends of the 3rd axle 28 are all hinged with transmission arm 21, and transmission arm 21 is connected with pipe bending mechanism 4.
The one end that is fixed with back-moving spring 29 on the first described fixed mount 16, the other end of back-moving spring 29 is fixed on transmission arm 21.
The second described motor 17 is connected with the second little synchronizing wheel 30, the second ball-screws 18 and is connected with the little synchronizing wheel of second largest synchronizing wheel 31, the second 30 and is connected with second largest synchronizing wheel 31 by the second Timing Belt 32.
Described pipe bending mechanism 4 comprises the second fixed mount 33, swing mechanism 34 and fixed idler whell 35, the second described fixed mount 33 is fixed on lathe bed 1, the two boards that the second fixed mount 33 is space parallel forms, in the middle of the second fixed mount 33, be fixed with the first axle 36, the second axle 37, described fixed idler whell 35 hinged with the second axle 37 on, described swing mechanism 34 comprises swing span 38, central roller 39, squeegee roller 40 and the 4th axle 41, described swing span 38 is " V " structure, the two ends of described swing span 38 are respectively equipped with the 4th axle 41 and central roller 39, the mid portion of swing span 38 is provided with squeegee roller 40, described swing span 38 near lathe bed 1 and by central roller 39 hinged with the first axle 36 on, described squeegee roller 40, central roller 39 and fixed idler whell 35 are with on triangular pattern setting and the second fixed mount 33, the transmission arm 21 that the two ends of the 4th described axle 41 and the 3rd axle 28 two ends arrange is hinged respectively.
The present invention uses the crooked principle of three rollers, and laterally (X-axis) feeding adopts AC servo motor, precision ball screw transmission, and precision reaches 0.01mm; Longitudinally (Z axis) feeding adopts high power AC servomotor and high pulling torque ball-screw, and precision reaches 0.1mm; High-precision AC servo motor consubstantiality are equipped with electro-optical feedback arrangement, and motor and system are realized to high-precision control, and this digital control system has been concentrated the advantage of digital control scheme, adopt transmission principle and the control system of lathe maturation.Using digital control system, servomotor and ball-screw to form control and the transmission of lathe, is the lathe Reliable guarantee in high reliability and high stability for a long time.
And it is before bending, only need operating personnel, according to the different segmental arcs of workpiece profile, corresponding two Dimension Numerical Value and velocity amplitude segmentation programmed, data adjustment while being beneficial to the finishing of arc part segmental arc, while being out of shape from arcuate member, stressing conditions is analyzed, and the program that symmetrical arc component need be worked out is asymmetric.Input bending machine digital control system, after trying curved adjustment programme, just can batch curved workpieces.
CNC tube bending machine adopts two axle control digital control systems, does not exist fluid pressure line to leak, high temperature, and, there is not the frequent maintenance adjustment of hydraulic efficiency servo-valve in high pressure.It is (X-axis) feeding employing AC servo motor, precision ball screw transmission laterally, and precision reaches 0.01mm; Longitudinally (Z axis) feeding adopts high power AC servomotor and high pulling torque ball-screw, and precision reaches 0.1mm; High-precision AC servo motor consubstantiality are equipped with electro-optical feedback arrangement, and motor and system are realized to high-precision control, long-term stable operation, and maintenance cost is extremely low.
Claims (4)
1. CNC tube bending machine, comprise lathe bed (1), transverse feed mechanism (2), longitudinal force-increasing mechanism (3) and pipe bending mechanism (4), on lathe bed (1), be provided with slideway (5), on slideway (5), be provided with sliding shoe (6), sliding shoe (6) is connected with transverse feed mechanism (2), the both sides of lathe bed (1) are fixed with pipe bending mechanism (4) and longitudinal force-increasing mechanism (3), pipe bending mechanism (4) is connected with longitudinal force-increasing mechanism (3), it is characterized in that:
Described transverse feed mechanism (2) comprises the first motor (7), the first ball-screw (8), liftout bearing (9);
Described the first motor (7) is connected with liftout bearing (9) by the first ball-screw (8);
Described the first ball-screw (8) comprises the first nut (10), nut sleeve (11), the first screw mandrel (12), the first screw mandrel (12) and suitable being set in together of the first nut (10), nut sleeve (11) and suitable being fixed together of the first nut (10);
Described nut sleeve (11) is fixed together with sliding shoe (6), is fixed with liftout bearing (9) on described sliding shoe (6);
Described the first motor (7) is connected with the first little synchronizing wheel (13), the first ball-screw (8) is connected with first synchronizing wheel (14), and the first little synchronizing wheel (13) is connected with first synchronizing wheel (14) by the first Timing Belt (15);
Described longitudinal force-increasing mechanism (3) comprises the first fixed mount (16), the second motor (17), the second ball-screw (18), angled-lift splits (19), the first scroll wheel (20), transmission arm (21),
Described the first fixed mount (16) is fixed on lathe bed (1), the first fixed mount (16) inside is provided with the second slideway (22), on the second slideway (22), be provided with and tiltedly carve piece (23), the upper and lower surface of the first fixed mount (16) is symmetrically arranged with chute (24);
The described piece (23) of tiltedly carving is connected with the second motor (17) by the second ball-screw (18);
Described the second ball-screw (18) comprises the second nut (25), the second screw mandrel (26), described piece (23) inside of tiltedly carving is provided with through hole (27), one end of through hole (27) is fixed with the second nut (25), the second nut (25) is sleeved on the second screw mandrel (26), the second screw mandrel (26) is connected with the second motor (17)
Described the first scroll wheel (20) is positioned at tiltedly carves the place ahead, inclined-plane of piece (23) and the inside of the first fixed mount (16), the first scroll wheel (20) is set with the 3rd axle (28), the two ends of the 3rd axle (28) are positioned at the chute (24) of the first fixed mount (16), the two ends of the 3rd axle (28) are all hinged with transmission arm (21), and transmission arm (21) is connected with pipe bending mechanism (4).
2. according to the CNC tube bending machine described in claims 1, it is characterized in that:
Described the first fixed mount (16) is fixed with one end of back-moving spring (29), and the other end of back-moving spring (29) is fixed on transmission arm (21).
3. according to the CNC tube bending machine described in claims 1, it is characterized in that:
Described the second motor (17) is connected with the second little synchronizing wheel (30), the second ball-screw (18) is connected with second largest step wheel (31), and the second little synchronizing wheel (30) is connected with second largest synchronizing wheel (31) by the second Timing Belt (32).
4. according to the CNC tube bending machine described in claims 1, it is characterized in that: described pipe bending mechanism (4) comprises the second fixed mount (33), swing mechanism (34) and fixed idler whell (35), the second described fixed mount (33) one sides are fixed on lathe bed (1), the two boards that the second fixed mount (33) is space parallel forms, in the middle of the second fixed mount (33) opposite side, be fixed with the second axle (37), near on a side fixed mount of lathe bed, be fixed with the first axle (36), described fixed idler whell (35) hinged with the second axle (37) on, described swing mechanism (34) comprises swing span (38), central roller (39), squeegee roller (40) and the 4th axle (41), described swing span (38) is " V " structure, the two ends of described swing span (38) are respectively equipped with the 4th axle (41) and central roller (39), the mid portion of swing span (38) is provided with squeegee roller (40), described swing span (38) near lathe bed (1) and by central roller (39) hinged with the first axle (36) on, described squeegee roller (40), central roller (39) and fixed idler whell (35) are with on triangular pattern setting and the second fixed mount (33), the transmission arm (21) that the two ends of the 4th described axle (41) and the 3rd axle (28) two ends arrange is hinged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356537.2A CN102847762B (en) | 2012-09-14 | 2012-09-14 | Numerical control bending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356537.2A CN102847762B (en) | 2012-09-14 | 2012-09-14 | Numerical control bending machine |
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| CN102847762A CN102847762A (en) | 2013-01-02 |
| CN102847762B true CN102847762B (en) | 2014-11-05 |
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| CN201210356537.2A Active CN102847762B (en) | 2012-09-14 | 2012-09-14 | Numerical control bending machine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077153A (en) * | 2016-08-12 | 2016-11-09 | 太原泰立机电新技术有限公司 | A kind of test device of bending machine upper sectional material bending force |
| CN106734693B (en) * | 2016-12-05 | 2018-04-24 | 西北工业大学 | A kind of feed mechanism for space pipe fitting bending building mortion |
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| JP2005219059A (en) * | 2004-02-03 | 2005-08-18 | Sanyo Kikai:Kk | Reinforcing bar feeder of reinforcing bar bending machine |
| JP2006035242A (en) * | 2004-07-23 | 2006-02-09 | Showa Linc Corp | Hollow shape bending device |
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| US6192728B1 (en) * | 2000-05-30 | 2001-02-27 | Yin Lin Machine Industrial Co., Ltd | Pipe bending machine accurately controlling bent angles of pipes |
| CN2485065Y (en) * | 2000-05-30 | 2002-04-10 | 颖霖机械工业股份有限公司 | Pipe-bending machine with control of precisive bending angle |
| CN2707394Y (en) * | 2004-06-25 | 2005-07-06 | 颖霖机械工业股份有限公司 | Bidirectional bending device of pipe bender |
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