CN108927431B - Profile positive and negative arc rolling bending machine and operation mode thereof - Google Patents
Profile positive and negative arc rolling bending machine and operation mode thereof Download PDFInfo
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- CN108927431B CN108927431B CN201810949706.0A CN201810949706A CN108927431B CN 108927431 B CN108927431 B CN 108927431B CN 201810949706 A CN201810949706 A CN 201810949706A CN 108927431 B CN108927431 B CN 108927431B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 56
- 238000005452 bending Methods 0.000 title abstract description 19
- 230000006835 compression Effects 0.000 claims description 32
- 238000007906 compression Methods 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000013000 roll bending Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a positive and negative arc rolling bender for sectional materials, which comprises a first movable press roller, a second movable press roller, a first fixed press roller and a second fixed press roller, wherein the first movable press roller, the second movable press roller, the first fixed press roller and the second fixed press roller rotate by taking respective central axes as circle centers; the first fixed pressing roller and the second fixed pressing roller are positioned on the same side of the first movable pressing roller and the second movable pressing roller; the first movable press roller rotates by taking the central axis of the second movable press roller as the center of a circle; the second movable press roller rotates by taking the central axis of the first movable press roller as the center of a circle. According to the positive and negative arc rolling bending machine for the section, the first movable press roller rotates by taking the central axis of the second movable press roller as the center of a circle to roll the positive arc on the section, and the second movable press roller rotates by taking the central axis of the first movable press roller as the center of a circle to roll the direction arc on the section.
Description
Technical Field
The invention relates to a section bar processing machine, in particular to a section bar positive and negative arc rolling bending machine for positive and negative arc processing of section bars and an operation mode thereof.
Background
The positive and negative arc rolling machine for the profile is a machine which is commonly used at present and is used for continuously rolling and bending a positive arc and a negative arc of the profile, but because the distance between a movable pressing roller and a fixed pressing roller is large, a transition area which is of a certain length and cannot be rolled is formed at the joint of the positive arc and the negative arc of the processed profile, so that smooth arc transition cannot be processed between the positive arc and the negative arc of the profile, and the rolling and bending effect is affected.
Disclosure of Invention
The invention aims to provide a profile positive and negative arc rolling bending machine and an operation mode thereof, which can solve one or more of the prior problems.
According to one aspect of the invention, a positive and negative arc rolling bender for sectional materials is provided, which comprises a first movable press roller, a second movable press roller, a first fixed press roller and a second fixed press roller which rotate by taking respective central axes as circle centers; the first fixed pressing roller and the second fixed pressing roller are positioned on the same side of the first movable pressing roller and the second movable pressing roller; the first movable press roller rotates by taking the central axis of the second movable press roller as the center of a circle; the second movable press roller rotates by taking the central axis of the first movable press roller as the center of a circle.
According to the positive and negative arc rolling bending machine for the section, the first movable press roller rotates by taking the central axis of the second movable press roller as the center of a circle to roll a positive arc on the section, and the second movable press roller rotates by taking the central axis of the first movable press roller as the center of a circle to roll a reverse arc on the section.
The transition section refers to a transition area which cannot be rolled at the joint of the forward arc and the reverse arc on the profile in the rolling bending process of the profile.
In some embodiments, the profile positive and negative arc rolling bending machine further comprises a sliding rail, a first sliding block matched with the sliding rail, a first swing arm and a second swing arm; the first sliding block is provided with a first L track and a second L track which are opposite in position; the short sides of the first L track and the second L track are set to be far ends, and the long sides are set to be far away from the first movable press roller and the second movable press roller; a linear first inclined rail and a linear second inclined rail which are opposite in position are arranged above or below the first sliding block; the near ends of the first inclined rail and the second inclined rail are arranged close to the first movable press roller and the second movable press roller; one end of the first swing arm is hinged with the first dynamic pressure roller, and the free end of the first swing arm moves back and forth along the first L track and the first inclined track; one end of the second swing arm is hinged with the second dynamic pressure roller, and the free end of the second swing arm moves back and forth along the second L track and the second inclined track. The sliding block moves reciprocally along the sliding rail, so that the first movable compression roller rotates by taking the central axis of the second movable compression roller as the center of a circle, and the second movable compression roller rotates by taking the central axis of the first movable compression roller as the center of a circle.
In some embodiments, the profile positive and negative arc rolling bending machine further comprises a second sliding block matched with the sliding rail, a balance wheel is hinged on the second sliding block, and the first inclined rail and the second inclined rail are arranged on the second sliding block; the balance wheel is provided with a pendulum part and a fan-shaped part; the first sliding block is provided with two limit grooves and a swing groove; the swing groove is positioned between the two limit grooves, and the position and the shape of the swing groove are matched with those of the swing part; the position and the shape of the limit groove are matched with the sector part. The balance wheel is hinged on the second sliding block, and the first sliding block is provided with two limiting grooves, namely a balance groove, so that the first movable pressing roller and the second movable pressing roller can integrally move according to a set distance.
In some embodiments, the first swing arm and the second swing arm of the profile positive and negative arc rolling bender are arranged between the first sliding block and the second sliding block; two slide ways are arranged on the slide rail in parallel, the upper slide way is matched with the first slide block, and the lower slide way is matched with the second slide block.
In some embodiments, the profile positive and negative arc rolling bending machine of the present invention further comprises a slider driving device for driving the first slider to reciprocate.
In some embodiments, the profile positive and negative arc rolling bending machine further comprises a first guide roller arranged at the feeding end of the first fixed compression roller and a second guide roller arranged at the feeding end of the second fixed compression roller.
In some embodiments, the profile positive and negative arc rolling mill of the present invention further comprises a rotation driving device, a first transmission gear and a second transmission gear; the rotation driving device drives the first transmission gear to rotate, the first transmission gear drives the second guide roller to rotate, the second guide roller drives the first guide roller to rotate, the second guide roller simultaneously drives the second constant pressure roller to rotate through the second transmission gear, and the second constant pressure roller drives the first constant pressure roller to rotate.
According to one aspect of the invention, an operation mode of a profile positive and negative arc rolling bending machine is provided, wherein a first movable press roller, a second movable press roller, a first fixed press roller and a second fixed press roller rotate by taking respective central axes as circle centers; further comprises: the second movable press roller rotates clockwise by a set angle by taking the central axis of the first movable press roller as the center of a circle; the second movable press roller rotates anticlockwise by taking the central axis of the first movable press roller as a circle center, and the second movable press roller resets; the first movable press roller rotates anticlockwise by a set angle by taking the central axis of the second movable press roller as the center of a circle; the first movable press roller rotates clockwise by taking the central axis of the second movable press roller as the center of a circle, and resets; repeating the step (A).
In some embodiments, the running mode of the profile positive and negative arc rolling bender comprises the steps that in the step (A), a first movable press roller and a second movable press roller integrally move to one side of the second movable press roller by a set distance, and then the second movable press roller rotates clockwise by a set angle with the central axis of the first movable press roller as the center of a circle; and (C) integrally moving the first movable press roller and the second movable press roller to one side of the first movable press roller by a set distance, and then rotating the first movable press roller anticlockwise by a set angle by taking the central axis of the second movable press roller as the center of a circle.
Drawings
Fig. 1 is a schematic structural view of a profile positive and negative arc rolling bending machine according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a first dynamic pressure roller, a second dynamic pressure roller and a driving mechanism of the first dynamic pressure roller and the second dynamic pressure roller of the profile positive and negative arc rolling bender according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an exploded structure of the first slider, swing arm, first diagonal rail and second diagonal rail of the profile positive and negative arc rolling bender shown in fig. 2.
Fig. 4 is a schematic structural view of the first movable roller and the second movable roller of the profile positive and negative arc rolling bender in fig. 2 in a reset state.
Fig. 5 is a schematic structural view of the first movable pressing roller of the profile positive and negative arc rolling bender shown in fig. 2 in a rotating state by taking the second movable pressing roller as a circle center.
Fig. 6 is a schematic structural view of a second movable pressing roller of the profile positive and negative arc rolling bender shown in fig. 2 in a rotating state by taking the first movable pressing roller as a circle center.
Fig. 7 is a schematic structural view of a first dynamic pressure roller and a second dynamic pressure roller of a profile positive and negative arc rolling bender and a driving mechanism thereof according to another embodiment of the present invention.
Fig. 8 is a schematic diagram showing an exploded structure of a first slider, a swing arm, a second slider, and a balance of the profile positive and negative arc rolling bender shown in fig. 7.
Fig. 9 is a schematic structural view of the first movable roller and the second movable roller of the profile positive and negative arc rolling bender in a reset state.
Fig. 10 is a schematic structural view of the first movable pressing roller of the profile positive and negative arc rolling bender shown in fig. 7 in a rotating state by taking the second movable pressing roller as a circle center.
Fig. 11 is a schematic structural view of a second movable pressing roller of the profile positive and negative arc rolling bender shown in fig. 7 in a rotating state by taking the first movable pressing roller as a circle center.
Fig. 12 is a schematic view of a rotation driving structure of each roller of a profile positive and negative arc rolling bender according to an embodiment of the present invention.
Fig. 13 is a schematic view of a profile positive and negative arc rolling bender holding a workpiece according to an embodiment of the present invention.
Fig. 14 is a schematic view of a rolling right arc of a profile positive and negative arc rolling bender according to an embodiment of the present invention.
Fig. 15 is a schematic view of a rolling left arc of a profile positive and negative arc rolling bender according to an embodiment of the present invention.
Fig. 16 is a schematic view of the overall structure of a profile positive and negative arc rolling machine according to an embodiment of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, but the scope of protection is not limited by these examples.
Fig. 1 to 3 schematically show the structure of a profile positive and negative arc rolling bender according to an embodiment of the present invention.
As shown in fig. 1 to 3, the profile positive and negative arc rolling bender comprises a first movable press roller 11, a second movable press roller 12, a first fixed press roller 21 and a second fixed press roller 22 which rotate by taking respective central axes as circle centers. The first fixed compression roller 21 and the second fixed compression roller 22 are positioned on the same side of the first movable compression roller 11 and the second movable compression roller 12; the first movable compression roller 11 rotates by taking the central axis of the second movable compression roller 12 as the center of a circle; the second movable compression roller 12 rotates around the central axis of the first movable compression roller 11.
In order to drive the first movable compression roller 11 to rotate by taking the central axis of the second movable compression roller 12 as the center of a circle, and the second movable compression roller 12 to rotate by taking the central axis of the first movable compression roller 11 as the center of a circle, a sliding rail 30, a first sliding block 31 matched with the sliding rail 30, a first swing arm 331 and a second swing arm 332 can be further arranged.
The first slider 31 is provided with a first L-shaped rail 311 and a second L-shaped rail 312 which are opposite to each other. The short sides of the first L-shaped rail 311 and the second L-shaped rail 312 are set to distal ends, and the long sides are set to be distant from the first movable platen roller 11 and the second movable platen roller 12. A linear first inclined rail 321 and a linear second inclined rail 322 which are opposite are arranged above or below the first sliding block 31. The proximal ends of the first diagonal rail 321 and the second diagonal rail 322 are disposed near the first movable platen roller 11 and the second movable platen roller 12. The first and second diagonal rails 321 and 322 may be disposed on the lower bottom surface of the slide rail 30.
One end of the first swing arm 331 is hinged to the first movable compression roller 11, and the free end moves reciprocally along the first L-rail 311 and the first diagonal rail 321. One end of the second swing arm 332 is hinged to the second movable compression roller 12, and the free end thereof reciprocates along the second L-rail 312 and the second inclined rail 322.
Fig. 4 to 6 schematically show the structure of the working states of the first movable roller and the second movable roller of the profile positive and negative arc rolling machine shown in fig. 2.
As shown in fig. 4, the first movable roller 11 and the second movable roller 12 are in a reset state, and the free end of the first swing arm 331 is located at a position far to the left on the long side of the first L-shaped rail 311, and this position is also the distal end of the first diagonal rail 321. The free end of the second swing arm 332 is symmetrically located to the right on the long side of the second L-rail 312, which is also the distal end of the second diagonal rail 322.
As shown in fig. 5, the slider driving device 40 pushes the first slider 31 rightward, and the free end of the second swing arm 332 slides toward the left end of the long side of the second L-rail 312, during which the position of the second swing arm 332 remains unchanged. The free end of the first swing arm 331 slides into the short side of the first L-shaped rail 311, and simultaneously slides along the first inclined rail 321 towards the proximal end, and the first swing arm 331 then pushes the first movable press roller 11 to rotate around the central axis of the second movable press roller 12. When the free end of the first swing arm 331 slides to the proximal end of the first diagonal rail 321, the first movable roller 11 stops rotating.
When the left arc rolling is completed, the first sliding block 31 is pulled leftwards, and the first movable pressing roller 11 and the second movable pressing roller 12 can be reset to the state shown in fig. 4.
As shown in fig. 6, the slider driving device 40 pulls the first slider 31 to the left again, and the free end of the first swing arm 331 slides to the right end of the long side of the first L rail 311, and during this process, the position of the first swing arm 331 remains unchanged. The free end of the second swing arm 332 slides into the short side of the second L-shaped rail 312 and simultaneously slides along the second inclined rail 322 towards the proximal end, and the second swing arm 332 then pushes the second movable press roller 12 to rotate around the central axis of the first movable press roller 11. When the free end of the second swing arm 332 slides to the proximal end of the second inclined rail 322, the second movable platen 12 stops rotating.
After the right arc is rolled, the first sliding block 31 is pushed to the right, and the first movable pressing roller 11 and the second movable pressing roller 12 can be reset to the state shown in fig. 4.
The operation mode of this positive and negative arc rolling bender of section bar, first movable compression roller 11, second movable compression roller 12, first fixed compression roller 21 and second fixed compression roller 22 use respective axis to rotate as the centre of a circle, still include:
the first movable press roller 11 rotates anticlockwise by a set angle by taking the central axis of the second movable press roller 12 as the center of a circle;
the first movable press roller 11 rotates clockwise by taking the central axis of the second movable press roller 12 as the center of a circle, and resets;
the second movable press roll 12 rotates clockwise by a set angle by taking the central axis of the first movable press roll 11 as the center of a circle;
the second movable press roll 12 rotates anticlockwise by taking the central axis of the first movable press roll 11 as a circle center, and the second movable press roll 12 resets;
repeating the step (A).
In the present embodiment, the slider driving device 40 is a hydraulic cylinder. The body of pneumatic cylinder is connected with slide rail 30 fixed connection, and the piston of pneumatic cylinder is connected with first slider 31. In other embodiments, the slider driving device 40 may be a pneumatic cylinder, an electric motor, or other driving modes such as manually pushing the slider or rotating the rocker arm.
The first guide roller 41 may be disposed at the feeding end of the first fixing roller 21, and the second guide roller 42 may be disposed at the feeding end of the second fixing roller 22. During the operation of the roll bending machine, the first guide roller 41 and the corresponding second guide roller 42 clamp the profile workpiece, and the first fixed pressing roller 21 and the second fixed pressing roller 22 also clamp the profile workpiece, so that the workpiece moves towards the first movable pressing roller 11 and the second movable pressing roller 12.
In the present embodiment, two sets of the first guide roller 41 and the second guide roller 42 are provided. In other embodiments, other numbers of first guide rollers 41 and second guide rollers 42 may be provided as desired. The guide roller is arranged, so that the feeding position and feeding angle of the profile are more accurate, and the shape of the profile subjected to roll bending processing meets the requirement of a setting meter.
In the present embodiment, the first guide roller 41 and the second guide roller 42, the first constant pressure roller 21 and the second constant pressure roller 22 are both driving rollers, and the first movable pressure roller 11 is a driven roller with the second movable pressure roller 12.
In this embodiment, two sets of rails (L-rail and diagonal rail) are adopted to cooperatively slide so that the first movable press roller 11 rotates around the central axis of the second movable press roller 12 and the second movable press roller 12 rotates around the central axis of the first movable press roller 11. In other embodiments, a pneumatic cylinder, a hydraulic cylinder, a motor, or the like may be used to directly drive the first movable pressing roller 11 to rotate around the central axis of the second movable pressing roller 12 and the second movable pressing roller 12 to rotate around the central axis of the first movable pressing roller 11.
Fig. 12 schematically shows the structure of a rotary driving mechanism of each press roll of the profile positive and negative arc rolling machine according to one embodiment of the invention.
As shown in fig. 12, gears are provided below the first guide roller 41, the second guide roller 42, the first constant pressure roller 21, and the second constant pressure roller 22, and these gears mesh with the first transmission gear 61 and the second transmission gear 62. The rotation driving device 60 drives the first transmission gear 61 to rotate, the first transmission gear 61 drives the second guide roller 42 to rotate, the second guide roller 42 drives the first guide roller 41 to rotate, the second guide roller 42 simultaneously drives the second constant pressure roller 22 to rotate through the second transmission gear 62, and the second constant pressure roller 22 drives the first constant pressure roller 21 to rotate. A rotation driving device 60 drives the two first guide rollers 41, the two second guide rollers 42, the first constant pressure roller 21 and the second constant pressure roller 22 to rotate at the same time, so that the synchronism of the rollers can be better.
In the present embodiment, the rotation driving device 60 is an electric motor. In other embodiments, the rollers may be driven to rotate by a driving device such as a hydraulic machine, a pneumatic machine, a waterwheel or a fan, and the like, with the central axes of the rollers as circle centers.
When the positive and negative arc rolling bending machine is used for positive and negative arc rolling bending of the profile, as shown in fig. 13, a first guide roller 41, a second guide roller 42, a first fixed press roller 21, a second fixed press roller 22 and a first movable press roller 11 are sleeved with a die matched with the section of the profile by a second movable press roller 12. The profile is clamped between a first guide roller 41 and a corresponding second guide roller 42, a first constant pressure roller 21 and a second constant pressure roller 22. The rotary driving device 60 is started, and the first guide roller 41, the second guide roller 42, the first fixed pressing roller 21 and the second fixed pressing roller 22 rotate to drive the profile to move towards the first movable pressing roller 11 in the direction of the second movable pressing roller 12. The slide block driving device 40 is started, the first movable press roller 11 and the second movable press roller 12 change positions according to the running mode of the profile positive and negative arc rolling machine, and continuous positive and reverse arcs can be rolled on the profile.
Fig. 7 to 8 schematically show the structures of a first dynamic pressure roller and a second dynamic pressure roller and a driving mechanism thereof of a profile positive and negative arc rolling machine according to another embodiment of the present invention.
As shown in fig. 7 to 8, a second sliding block 32 matched with the sliding rail 30 can be further arranged, a balance 34 is hinged on the second sliding block 32, and a first inclined rail 321 and a second inclined rail 322 are arranged on the second sliding block 32; balance 34 is provided with a balance 341 and a sector 342; the first sliding block 31 is provided with two limit grooves 35 and a swing groove 36; the swing groove 36 is positioned between the two limit grooves 35, and the position and the shape of the swing groove 36 are matched with those of the swing part 341; the position and shape of the limit slot 35 is adapted to the sector 342. The arrangement can enable the first movable press roller 11 and the second movable press roller 12 to have relative displacement with the first fixed press roller 21 and the second fixed press roller 22, and can press more arcs with different curvatures, so that the connection of the forward arcs and the reverse arcs is smoother.
Fig. 9 to 11 schematically show the structure of the first movable roller and the second movable roller of the profile positive and negative arc rolling machine shown in fig. 7 in the working state.
As shown in fig. 9, the first movable platen roller 11 and the second movable platen roller 12 are in a reset state, and the free end of the first swing arm 331 is located at a position far to the left on the long side of the first L-shaped rail 311, which is also the distal end of the first diagonal rail 321. The free end of the second swing arm 332 is symmetrically located to the right on the long side of the second L-rail 312, which is also the distal end of the second diagonal rail 322. The pendulum 341 of the balance 34 is located in the pendulum groove 36 of the first slider 31.
As shown in fig. 10, the slider driving device 40 pushes the first slider 31 to the right, the swing groove 36 of the first slider 31 drives the swing portion 341 of the balance 34 to rotate counterclockwise, the second slider 32 slides clockwise to the left, and the free end of the first swing arm 331 located at the distal end of the first diagonal rail 321 and the free end of the second swing arm 332 located at the distal end of the second diagonal rail 322 move to the left, driving the first movable press roller 11 and the second movable press roller 12 to move to the left as a whole.
When balance 34 rotates counterclockwise by about 90 °, sector 342 of balance 34 enters left limit groove 35 of first slider 31, and continues to push first slider 31 to the right, balance 34 no longer rotates, second slider 32 no longer moves, and first movable platen roller 11 and second movable platen roller 12 no longer move to the left as a whole.
Continuing to push the first slider 31 to the right, the free end of the second swing arm 332 slides toward the sitting end of the long side of the second L-rail 312, during which the position of the second swing arm 332 remains unchanged. The free end of the first swing arm 331 slides into the short side of the first L-shaped rail 311, and simultaneously slides along the first inclined rail 321 towards the proximal end, and the first swing arm 331 then pushes the first movable press roller 11 to rotate around the central axis of the second movable press roller 12. When the free end of the first swing arm 331 slides to the proximal end of the first diagonal rail 321, the first movable roller 11 stops rotating.
When the right arc is rolled, the first sliding block 31 is pulled leftwards, and the first movable pressing roller 11, the second movable pressing roller 12 and the balance 34 can be reset to the state shown in fig. 5. The pendulum 341 of the balance 34 is located in the pendulum groove 36 of the first slider 31.
As shown in fig. 11, the first slider 31 is pulled leftward by the slider driving device 40, the swinging groove 36 of the first slider 31 drives the swinging part 341 of the balance 34 to rotate clockwise, the second slider 32 slides rightward clockwise, and the free end of the first swinging arm 331 located at the distal end of the first diagonal rail 321 and the free end of the second swinging arm 332 located at the distal end of the second diagonal rail 322 both move rightward, driving the first movable platen roller 11 and the second movable platen roller 12 to move rightward as a whole.
When balance 34 rotates clockwise by about 90 °, sector 342 of balance 34 enters right limit slot 35 of first slider 31, continues to pull first slider 31 to the left, balance 34 no longer rotates, second slider 32 no longer moves, and first movable platen roller 11 and second movable platen roller 12 no longer move to the right as a whole.
Continuing to pull the first slider 31 to the left, the free end of the first swing arm 331 slides to the right end of the long side of the first L-rail 311, and during this process, the position of the first swing arm 331 remains unchanged. The free end of the second swing arm 332 slides into the short side of the second L-shaped rail 312 and simultaneously slides along the second inclined rail 322 towards the proximal end, and the second swing arm 332 then pushes the second movable press roller 12 to rotate around the central axis of the first movable press roller 11. When the free end of the second swing arm 332 slides to the proximal end of the second inclined rail 322, the second movable platen 12 stops rotating.
When the left arc is rolled, the first sliding block 31 is pushed to the right, and the first movable pressing roller 11, the second movable pressing roller 12 and the balance 34 can be reset to the state shown in fig. 5. The pendulum 341 of the balance 34 is located in the pendulum groove 36 of the first slider 31.
In the present embodiment, the first slider 31 and the second slider 32 are parallel to each other. Two slide ways are arranged on the slide rail 30 in parallel, an upper slide way is matched with the first slide block 31, and a lower slide way is matched with the second slide block 32. The first swing arm 331 and the second swing arm 332 are provided between the first slider 31 and the second slider 32. The first slider 31 is up and the second slider 32 is down. The upper and lower parts of the free end of the first swing arm 331 are respectively provided with a cylindrical first protruding part 361, the first protruding part 361 positioned above is matched with the first L-shaped rail 311, and the first protruding part 361 positioned below is matched with the first inclined rail 321. The first protrusion 361 is hinged to the first swing arm 331. The upper and lower parts of the free end of the second swing arm 332 are respectively provided with a cylindrical second protruding part 362, the second protruding part 362 positioned above is matched with the second L-shaped rail 312, and the second protruding part 362 positioned below is matched with the second inclined rail 322. The second projection 362 is hinged with the second swing arm 332.
The first L-rail 311, the second L-rail 312, the first diagonal rail 321, and the second diagonal rail 322 are through holes.
In other embodiments, the first swing arm 331 and the second swing arm 332 may also be disposed above or below the first slider 31 and the second slider 32.
When the first swing arm 331 and the second swing arm 332 are disposed between the first slider 31 and the second slider 32, the first L-shaped rail 311, the second L-shaped rail 312, the first inclined rail 321 and the second inclined rail 322 may also be grooves, and the opening directions of the grooves are opposite.
The running mode of the profile positive and negative arc rolling bender comprises the steps that a first movable press roller 11, a second movable press roller 12, a first fixed press roller 21 and a second fixed press roller 22 rotate by taking respective central axes as circle centers; further comprises:
the first movable press roller 11 and the second movable press roller 12 integrally move to the side of the first movable press roller 11 by a set distance, and then the first movable press roller 11 rotates anticlockwise by a set angle by taking the central axis of the second movable press roller 12 as the center of a circle, as shown in fig. 14;
the first movable press roller 11 rotates clockwise by taking the central axis of the second movable press roller 12 as the center of a circle, and resets;
step (C), the first movable press roller 11 and the second movable press roller 12 integrally move to the side of the second movable press roller 12 by a set distance, and then the second movable press roller 12 rotates clockwise by a set angle with the central axis of the first movable press roller 11 as the center of a circle, as shown in fig. 15;
the second movable press roll 12 rotates anticlockwise by taking the central axis of the first movable press roll 11 as a circle center, and the second movable press roll 12 resets;
repeating the step (A).
When the positive and negative arc rolling bending machine is used for positive and negative arc rolling bending of the profile, as shown in fig. 13, a first guide roller 41, a second guide roller 42, a first fixed press roller 21, a second fixed press roller 22 and a first movable press roller 11 are sleeved with a die matched with the section of the profile by a second movable press roller 12. The profile is clamped between a first guide roller 41 and a corresponding second guide roller 42, a first constant pressure roller 21 and a second constant pressure roller 22.
The rotary driving device 60 is started, and the first guide roller 41, the second guide roller 42, the first fixed pressing roller 21 and the second fixed pressing roller 22 rotate to drive the profile to move towards the first movable pressing roller 11 in the direction of the second movable pressing roller 12.
The slide block driving device 40 is started, the first movable press roller 11 and the second movable press roller 12 integrally move to one side of the first movable press roller 11 by a set distance, and then the first movable press roller 11 rotates anticlockwise by a set angle with the central axis of the second movable press roller 12 as the center of a circle, as shown in fig. 14, and a right circular arc is rolled on the section bar.
Then, the first movable press roller 11 rotates clockwise around the central axis of the second movable press roller 12 as the center of a circle, and resets.
The first movable press roller 11 and the second movable press roller 12 integrally move to the second movable press roller 12 side by a set distance, and then the second movable press roller 12 rotates clockwise by a set angle with the central axis of the first movable press roller 11 as the center of a circle, as shown in fig. 15, and a left circular arc is rolled out on the profile.
Then, the second movable press roller 12 rotates anticlockwise by taking the central axis of the first movable press roller 11 as the center of a circle, and the second movable press roller 12 resets.
The steps are repeated, and continuous forward circular arcs and reverse circular arcs can be rolled on the section bar.
In this embodiment, the first movable press roller 11 and the second movable press roller 12 integrally move to the left to the tangent point of the profile and the second movable press roller 12, and the first movable press roller 11 rotates around the central axis of the second movable press roller 12 as the center of a circle. Similarly, the first movable press roller 11 and the second movable press roller 12 integrally move rightward to the tangent point of the profile and the first movable press roller 11, and the second movable press roller 12 rotates with the central axis of the first movable press roller as the center of a circle. In other embodiments, the first movable roller 11 and the second movable roller 12 may be moved by an appropriate distance as required.
The distance between the first movable press roller 11 and the second movable press roller 12 can also be set according to parameters such as the section size of the profile, the curvature of the radian of the profile to be bent, and the like.
The shape of the profile to be processed can be designed on a computer in advance, and the rotating speed of the rotating driving device 60 and the displacement length and speed of the sliding block driving device 40 are controlled by using the control device, so that the profile is processed into circular arcs with different curvatures and different directions according to the design requirements, and the view of the profile processing is realized.
Fig. 16 schematically shows the overall structure of a profile positive and negative arc rolling machine according to an embodiment of the present invention.
As shown in fig. 16, the first guide roller 41, the second guide roller 42, the first fixing roller 21, and the second fixing roller 22, and the first movable roller 11 are located at the upper portion of the cabinet with the second movable roller 12.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (8)
1. Positive and negative arc rolling bender of section bar, its characterized in that includes: the first movable press roller (11), the second movable press roller (12), the first fixed press roller (21) and the second fixed press roller (22) rotate by taking the respective central axes as circle centers;
the first fixed compression roller (21) and the second fixed compression roller (22) are positioned on the same side of the first movable compression roller (11) and the second movable compression roller (12);
the first movable press roller (11) rotates by taking the central axis of the second movable press roller (12) as the center of a circle;
the second movable press roller (12) rotates by taking the central axis of the first movable press roller (11) as the center of a circle;
the device also comprises a sliding rail (30), a first sliding block (31) matched with the sliding rail (30), a first swing arm (331) and a second swing arm (332);
a first L track (311) and a second L track (312) which are opposite in position are arranged on the first sliding block (31); the short sides of the first L-shaped track (311) and the second L-shaped track (312) are set to be far ends, and the long sides are set to be far away from the first movable press roller (11) and the second movable press roller (12);
a linear first inclined rail (321) and a linear second inclined rail (322) which are opposite in position are arranged above or below the first sliding block (31); the near ends of the first inclined rail (321) and the second inclined rail (322) are arranged close to the first movable compression roller (11) and the second movable compression roller (12);
one end of the first swing arm (331) is hinged with the first movable compression roller (11), and the free end of the first swing arm moves back and forth along the first L-shaped track (311) and the first inclined track (321);
one end of the second swing arm (332) is hinged with the second movable compression roller (12), and the free end of the second swing arm moves back and forth along the second L-shaped track (312) and the second inclined track (322).
2. The roll bending machine according to claim 1, further comprising a second slide (32) adapted to the slide rail (30), the second slide (32) being hinged with a balance (34), the first diagonal (321) and the second diagonal (322) being arranged on the second slide (32);
a swinging part (341) and a fan-shaped part (342) are arranged on the balance wheel (34);
two limit grooves (35) and a swing groove (36) are formed in the first sliding block (31);
the swinging grooves (36) are positioned between the two limiting grooves (35), and the positions and the shapes of the swinging grooves (36) are matched with the swinging parts (341);
the position and shape of the limit groove (35) are matched with the sector part (342).
3. The roll bending machine according to claim 2, characterized in that the first swing arm (331) and the second swing arm (332) are arranged between the first slider (31) and the second slider (32);
two slide ways are arranged on the slide rail (30) in parallel, an upper slide way is matched with the first slide block (31), and a lower slide way is matched with the second slide block (32).
4. A machine according to any one of claims 1-3, further comprising a slide driving device (40) for driving the first slide (31) to reciprocate.
5. A machine according to any one of claims 1-3, further comprising a first guiding roll (41) arranged at the feed end of the first stator roll (21) and a second guiding roll (42) arranged at the feed end of the second stator roll (22).
6. The roll bending machine according to claim 5, further comprising a rotational drive (60), a first transfer gear (61) and a second transfer gear (62);
the rotation driving device (60) drives the first transmission gear (61) to rotate, the first transmission gear (61) drives the second guide roller (42) to rotate, the second guide roller (42) drives the first guide roller (41) to rotate, the second guide roller (42) simultaneously drives the second fixed pressure roller (22) to rotate through the second transmission gear (62), and the second fixed pressure roller (22) drives the first fixed pressure roller (21) to rotate.
7. The running mode of the profile positive and negative arc rolling bender according to any of claims 1-6, wherein the first movable press roller (11), the second movable press roller (12), the first fixed press roller (21) and the second fixed press roller (22) rotate by taking the central axis of each as the circle center;
further comprises: the second movable press roller (12) rotates clockwise by a set angle by taking the central axis of the first movable press roller (11) as the center of a circle;
the second movable press roller (12) rotates anticlockwise by taking the central axis of the first movable press roller (11) as the center of a circle, and the second movable press roller (12) resets;
the first movable press roller (11) rotates anticlockwise by a set angle by taking the central axis of the second movable press roller (12) as the center of a circle;
the first movable press roller (11) rotates clockwise by taking the central axis of the second movable press roller (12) as the center of a circle, and resets;
repeating the step (A).
8. The operation mode of the profile positive and negative arc rolling bender according to claim 7, wherein in the step (a), the first movable press roller (11) and the second movable press roller (12) integrally move to one side of the second movable press roller (12) by a set distance, and then the second movable press roller (12) rotates clockwise by a set angle with the central axis of the first movable press roller (11) as the center of a circle;
in the step (C), the first movable press roller (11) and the second movable press roller (12) integrally move to one side of the first movable press roller (11) for a set distance, and then the first movable press roller (11) rotates anticlockwise for a set angle by taking the central axis of the second movable press roller (12) as the center of a circle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810949706.0A CN108927431B (en) | 2018-08-20 | 2018-08-20 | Profile positive and negative arc rolling bending machine and operation mode thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810949706.0A CN108927431B (en) | 2018-08-20 | 2018-08-20 | Profile positive and negative arc rolling bending machine and operation mode thereof |
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| CN108927431B true CN108927431B (en) | 2024-02-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113547005B (en) * | 2021-07-26 | 2022-10-04 | 广州高谱机械科技有限公司 | Positive and negative bending equipment of section bar of variable camber |
| CN113290092B (en) * | 2021-07-26 | 2021-10-29 | 广东高谱弯曲技术有限公司 | Positive and negative bending mechanism and bending method for profile |
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| CN108927431A (en) | 2018-12-04 |
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