CN114289551A - Three-roller differential variable-curvature numerical control plate bending machine - Google Patents

Three-roller differential variable-curvature numerical control plate bending machine Download PDF

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Publication number
CN114289551A
CN114289551A CN202111605384.6A CN202111605384A CN114289551A CN 114289551 A CN114289551 A CN 114289551A CN 202111605384 A CN202111605384 A CN 202111605384A CN 114289551 A CN114289551 A CN 114289551A
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flat plate
roller
motor
fixedly connected
dull
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CN202111605384.6A
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丘优先
张志坚
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Individual
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Individual
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Abstract

The invention belongs to the technical field of plate bending machines, in particular to a three-roller differential variable-curvature numerical control plate bending machine, which comprises a workbench, a motor, a hydraulic machine and a computer; the computer controls the hydraulic machine and the motor; one end of the surface of the workbench is fixedly connected with a motor, one side of the workbench, which is close to the motor, is fixedly connected with a speed reducing mechanism, and the output end of the motor is fixedly connected with the input end of the speed reducing mechanism; through setting up the lug, dull and stereotyped terminal contact lug is close to one side of going up the roller, the lug is spacing to dull and stereotyped end, it drives the lug motion to go up the roller, the lug drives dull and stereotyped end and moves with lower roller contact position, make dull and stereotyped end receive lug motion extrusion production preliminary bending, go up the dull and stereotyped end of roller contact and extrusion, the lug receives dull and stereotyped end extrusion and slides to the recess, make and go up roller and lower roller contact dull and stereotyped end, it is crooked with dull and stereotyped end, increase the dull and stereotyped process velocity of tubbiness.

Description

Three-roller differential variable-curvature numerical control plate bending machine
Technical Field
The invention belongs to the technical field of plate bending machines, and particularly relates to a three-roller differential variable-curvature numerical control plate bending machine.
Background
The plate bending machine is an apparatus for bending and forming a plate by using working rolls, and is classified into a three-roll type, a four-roll type, a multi-roll type, and the like. The upper roller of the three-roller plate bending machine acts on the piston to vertically lift at the central symmetrical position of the two lower rollers through hydraulic oil in the hydraulic cylinder, and drives the gears of the two lower rollers to engage and rotate through a final gear of the main speed reducer, so that torque is provided for plate bending. The plastic metal plate with flat specification of the plate bending machine passes through three working rollers (two lower rollers and one upper roller) of the plate bending machine, and the metal plate is continuously bent for multiple times by means of the downward pressing of the upper rollers and the rotating motion of the lower rollers to generate permanent plastic deformation.
The technical scheme that a patent relates to a three-roller differential variable-curvature numerical control plate bending machine also appears in the prior art, and a Chinese patent with the application number of CN2018104155527 discloses a three-roller differential variable-curvature numerical control plate bending machine, which comprises a base, a movable lower roller and a counterweight plate, wherein the top end of the base is provided with a rack, the rack is fixedly welded with the base, the top end of the rack is provided with a fixed worm, the fixed worm is detachably connected with the rack, the left end of the fixed worm is provided with an upper roller, the upper roller is detachably connected with the fixed worm, one end, away from the fixed worm, of the upper roller is provided with a reversed head, the reversed head is rotatably connected with the rack, the lower roller is arranged below the upper roller, the lower roller is rotatably connected with the rack, the lower roller is provided with an adjusting screw rod, the adjusting screw rod is detachably connected with the rack, a supporting shaft is arranged at one end of the fixed worm, which is far away from the upper roller; however, the technical scheme has the defects that the lifting motor is electrified to operate, the supporting shaft is pressed, the upper roller is taken up, the workpiece unloading speed is increased, the time and the labor are saved, the labor intensity of workers is reduced, when a flat plate is bent in a large batch to be in a barrel shape, because the three-roller plate bending machine carries out reciprocating motion on the flat plate so as to extrude and bend the flat plate, when the flat plate reciprocates, unbent parts are left at the head end and the tail end of the flat plate, and the part is still flat, so that the three-roller plate bending machine needs to pre-coil the head end and the tail end of the flat plate, or rolling and processing the joint of the barrel-shaped formed workpiece after bending the flat plate so as to achieve the purpose of forming the joint of the workpiece after bending and forming by the three-roller plate bending machine, therefore, the working efficiency of the three-roller plate bending machine is reduced, the labor intensity of workers is increased, and the processing efficiency is influenced.
In view of the above, the invention provides a three-roller differential variable-curvature numerical control plate bending machine, which solves the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a three-roller differential variable-curvature numerical control plate bending machine, which solves the problems that the working efficiency of the three-roller plate bending machine is reduced, the labor intensity of workers is increased and the processing efficiency is influenced because the head end and the tail end of a flat plate need to be pre-rolled or a joint of a barrel-shaped formed workpiece is rolled after the flat plate is bent, so that the joint of the workpiece formed by bending the three-roller plate bending machine is formed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a three-roller differential variable-curvature numerical control plate bending machine which comprises a workbench, a motor, a hydraulic machine and a computer; the computer controls the hydraulic machine and the motor; one end of the surface of the workbench is fixedly connected with a motor, one side of the workbench, which is close to the motor, is fixedly connected with a speed reducing mechanism, and the output end of the motor is fixedly connected with the input end of the speed reducing mechanism; one side of the workbench, which is close to the speed reducing mechanism, is provided with an extruding mechanism, and the extruding mechanism is far away from the motor; one side of the workbench, which is far away from the extrusion mechanism, is fixedly connected with a group of supporting plates, a group of lower rollers are rotatably connected between the adjacent supporting plates, the position of each lower roller is positioned on the same horizontal plane, and one end of each lower roller, which is close to the motor, penetrates through the supporting plate and is fixedly connected with the output end of the speed reduction mechanism; square holes are formed in the middle positions of the supporting plates, detachable sliding blocks are connected in the square holes in a sliding mode, and the transverse positions of the sliding blocks are fixedly arranged; an upper roller is rotatably connected between the adjacent sliding blocks, one end of the upper roller, which is close to the motor, is connected with the sliding blocks through turnover bearings, and one end of the upper roller, which is far away from the motor, is detachably connected with the sliding blocks; the top of the supporting plate is fixedly connected with a hydraulic machine, and the output end of the hydraulic machine penetrates through the inner wall of the square hole to be fixedly connected with the sliding block through a bolt; a group of grooves are uniformly formed in the surface of the lower roller, convex blocks are connected in the grooves in a sliding mode, the convex blocks are connected with the bottoms of the grooves through return springs, and rollers are arranged on two sides of each convex block; the top of the inner wall of the groove far away from the roller is fixedly connected with a limiting block; a first plate is arranged between the adjacent lower rollers, and a telescopic rod is fixedly connected between the two ends of the first plate and the workbench; the first plate is sleeved with a crawler belt corresponding to the working area of the upper roller, the crawler belt is connected with the first plate in a sliding mode, and the transverse position of the crawler belt is fixedly arranged.
When the plate rolling machine is used, when a flat plate is machined into a barrel-shaped workpiece, the flat plate is placed from a gap between an upper roller and a lower roller, one end of the flat plate which is placed into the plate rolling machine is a head end, the other end of the flat plate which is opposite to the head end is a tail end, the upper roller is kept at the middle position of the flat plate, the plate rolling machine is started, a worker inputs the size of the machined and formed workpiece into a computer, the computer generates a machining flow code through calculation, the computer inputs the machining flow code into a controller in the computer, and the controller in the computer controls the motor to rotate after recognizing the code; when the motor rotates forwards, the motor drives the speed reducing mechanism to work, the speed reducing mechanism drives the lower roller to rotate, the controller controls the output end of the hydraulic machine to extrude the flat plate downwards, the lower roller rotates to drive the flat plate to move, and after the flat plate moves through the upper roller, the flat plate is influenced by the extrusion effect of the upper roller to deform, so that the flat plate is preliminarily shaped into an arc; when the motor rotates reversely, the motor drives the speed reducing mechanism to work, the speed reducing mechanism drives the lower roller to rotate, the lower roller drives the flat plate to move, the controller controls the output end of the hydraulic machine to continuously extrude the flat plate downwards, and after the flat plate moves through the upper roller part, the flat plate is further deformed under the influence of the extrusion effect of the upper roller, so that the flat plate is further bent; when the controller controls the motor to rotate forwards or reversely once, the controller controls the output end in the hydraulic press to displace downwards and extrude the flat plate once, and the crawler belt drives the first plate to move and the first plate drives the telescopic rod to contract along with the movement of the hydraulic press through the extrusion of the flat plate on the crawler belt until the flat plate is processed into a barrel-shaped workpiece with the required size; by arranging the rollers, after the flat plate is placed, the output end of the hydraulic press downwards extrudes the flat plate, the flat plate is stressed to be close to the direction of the lower roller, the convex block in the area covered by the flat plate is extruded by the flat plate to slide into the groove, the rollers outside the area covered by the flat plate contact the side edge of the flat plate, in the processing process, the output end of the hydraulic press applies pressure to the flat plate in the whole process, and the rollers outside the area covered by the flat plate contact the side edge of the flat plate in the whole process of processing, so that the flat plate is limited by the rollers in the processing process, the stability of the flat plate in the processing process is improved, the size precision of the flat plate after processing and forming is improved, and the situation that the flat plate does not have a limiting effect in the processing process to generate deviation, and the size error of the flat plate after processing and forming is increased is prevented; when the flat plate is processed and formed into a barrel shape with a required size, the computer controls the motor to rotate forwards, the motor drives the speed reducing mechanism to move, the speed reducing mechanism drives the lower roller to move, the lower roller drives the barrel-shaped flat plate to move, the convex block is contacted with the head end of the flat plate, the upper roller extrudes the convex block through the flat plate, the convex block is stressed to slide towards the groove, the head end of the flat plate is extruded by the lower roller and the upper roller to generate preliminary deformation to be in an arc shape, the tail end of the flat plate is contacted with the convex block to be close to one side of the upper roller, the convex block limits the tail end of the flat plate, the upper roller drives the convex block to move, the tail end of the flat plate is driven to move towards the contact position of the upper roller and the lower roller by the convex block, the tail end of the flat plate is extruded by the convex block to generate preliminary bending, the convex block is extruded by the tail end of the flat plate to slide towards the groove, the tail end of the flat plate is contacted with the track by the upper roller and the lower roller, the caterpillar band limits the rebound quantity of the deformed tail end of the flat plate, a large gap exists between the head end and the tail end of the flat plate at the moment, the caterpillar band is pushed by the tail end of the flat plate under the influence of friction force, the tail end of the flat plate drives the caterpillar band to move until the tail end of the flat plate is conveyed to the surface of the second lower roller by the caterpillar band, the lug in the second lower roller contacts the tail end of the flat plate, the tail end of the flat plate is driven to move to the contact position of the second lower roller and the upper roller until the upper roller and the second lower roller complete extrusion on the tail end of the flat plate, the processing speed of the barrel-shaped flat plate is increased, the working efficiency of processing the flat plate into the barrel shape is increased, and the phenomenon that the work load of workers is increased and the processing efficiency of the barrel-shaped flat plate is reduced due to the fact that the workers need to pre-bend the flat plate before rolling is avoided; after the lower roller drives the flat plate to move for a circle, the computer controls the motor to rotate reversely, and the lower roller drives the flat plate to move for a circle until the flat plate is bent and formed; the sliding block far away from the motor is detachably arranged, the computer controls the extrusion mechanism to extrude one end of the upper roller close to the motor, the upper roller is inclined through the turnover bearing, the supporting plate far away from the motor is opened, the sliding block far away from the motor is detached, and a worker takes out the bent and formed flat plate.
Preferably, the top of the lug is arc-shaped, and the arc-shaped radius of the top of the lug is smaller than that of the lower roller.
During the use, be the arc through setting up the lug top, the lower roll drives dull and stereotyped motion, dull and stereotyped motion is close to the roller part on terminal contact lug top, the extension effort that reset spring produced is greater than the effort at dull and stereotyped terminal slant extrusion lug top, dull and stereotyped end receives lug top arc surface guide effect, make dull and stereotyped end be close to the roller part on the arc surface motion along the lug top, until dull and stereotyped terminal contact lower roll surface, increase the terminal end effect of the crooked dull and stereotyped of lug, thereby increase the crooked effect of dull and stereotyped, prevent behind dull and stereotyped terminal motion contact lug top, dull and stereotyped end is along lug top motion, thereby cross lug contact lower roll surface, the lower roll extrudees dull and stereotyped end, lead to dull and stereotyped terminal reverse bending of flat board, cause dull and stereotyped crooked effect to reduce, damage the flat board, and increase production cost.
Preferably, the two sides of the convex block, which are far away from the roller and are close to the arc-shaped top, are arranged in an arc shape, and the arc-shaped bending directions of the two sides of the convex block, which are close to the top, are opposite to the arc-shaped direction of the top of the convex block.
When the device is used, the two sides of the lug, which are far away from the roller, are arranged to be arc-shaped near the arc top, the arc bending direction of the two sides of the lug, which are near the top, is opposite to the arc direction of the top of the lug, after the reset spring drives the lug to reset, the lug contacts with the limiting block to stop moving, at the moment, the arc of the two sides of the lug, which are near the top, is tangent to the surface of the lower roller, the lower roller drives the lug and the flat plate to move, the top of the lug is near the end of the flat plate, the end of the flat plate moves to the arc position of the two sides of the lug, which are near the top, along the top of the lug until contacting the surface of the lower roller, so that the end of the flat plate moves from the top of the lug to the surface of the upper roller to pass through the arc transition of the two sides of the lug, the motion effect of the end of the flat plate is increased, thereby increasing the bending effect of the flat plate, and avoiding the situation that the end of the lug moves to the top of the lug to be near the included angle between the surface of the upper roller and the surface of the lower roller, the ends of the flat plate are caught, resulting in a reduction in the efficiency of flat plate processing.
Preferably, a group of cleaning blocks are uniformly and fixedly connected to the surface of the crawler, and the cleaning blocks are perpendicular to the surface of the crawler.
When the cleaning device is used, the lower roller drives the flat plate to move, the telescopic rod generates thrust on the first plate, the telescopic rod drives the first plate to move, the first plate drives the crawler belt to move, and the crawler belt drives the cleaning block to move towards the bottom of the flat plate, so that the top of the cleaning block is tightly attached to the bottom surface of the flat plate; when the motor rotates, the lower roller drives the flat plate to move, and due to the cleaning blocks, one side of the top of each cleaning block partially contacts the bottom of the flat plate, scraps generated after the bottom of the flat plate is bent and deformed are scraped out, and the scraps at the bottom of the flat plate fall between adjacent cleaning blocks to be collected after being scraped, so that the cleaning degree of the bottom surface of the flat plate is increased, and the scraps generated after the bottom of the flat plate is bent and deformed are prevented from entering the lower roller and the upper roller to extrude the flat plate, so that the bottom surface of the flat plate is damaged, and the outer surface of the barrel-shaped flat plate is damaged; the dull and stereotyped end contacts the cleaning piece after first lower roll and last roller extrusion, and dull and stereotyped end promotes the cleaning piece, and the cleaning piece drives the track motion, and the cleaning piece up to collecting after the piece moves to the state down to the piece that will collect between adjacent cleaning piece is discharged.
Preferably, the section of the cleaning block is in a semicircular arc shape, and the circle center of the cleaning block is positioned below the track.
When the cleaning block is used, the section of the cleaning block is in a semicircular arc shape, the circle center of the cleaning block is located below the crawler belt, the tail end of the flat plate moves to one side of the cleaning block, the tail end of the flat plate moves along the semicircular arc surface of the cleaning block until the cleaning block is clamped at the included angle position of the cleaning block and the crawler belt, the movement speed of the cleaning block is increased, the tail end of the flat plate pushes the cleaning block to move until the cleaning block moves towards the bottom direction of the first plate, the cleaning block is separated from the tail end of the flat plate, the tail end of the flat plate is not limited by the included angle between the cleaning block and the crawler belt, the flat plate moves towards the surface of the second lower roller, the movement efficiency of the tail end of the flat plate is increased, when the tail end of the flat plate is prevented from moving towards the second lower roller, the top of the second cleaning block close to the tail end of the flat plate is extruded onto the flat plate, the top of the flat plate is still clamped at the included angle position between the first cleaning block and the crawler belt when the surface of the flat plate moves towards the surface of the second lower roller, and the bending efficiency of the flat plate is reduced.
Preferably, the top of each cleaning block is fixedly connected with a group of elastic pieces, the elastic pieces are arranged in an arc shape close to the top, and the top of each adjacent elastic piece is in an arc shape which is relatively bent.
During the use, through setting up the flexure strip, and the flexure strip is close to the top part and is the arc, the lower roll drives dull and stereotyped motion, the telescopic link produces thrust to a board, the telescopic link drives a board motion, a board drives track motion, the track drives clean piece and moves to dull and stereotyped bottom, clean piece drives flexure strip contact flat board bottom surface, because adjacent flexure strip is the arc of relative bending for the top part, when making flexure strip contact flat board bottom surface, clean piece extrusion flexure strip, the flexure strip receives flat board bottom surface spacing and extends to both sides, make the flexure strip scrape the shovel to flat board bottom surface, scrape the piece of flat board bottom surface and shovel, increase the clean efficiency of flat board bottom surface, thereby increase the smoothness on the tubbiness dull and stereotyped surface after the bending.
The invention has the following beneficial effects:
1. according to the three-roller differential variable-curvature numerical control plate bending machine, the protruding block is arranged, the tail end of the flat plate is in contact with one side, close to the upper roller, of the protruding block, the protruding block limits the tail end of the flat plate, the upper roller drives the protruding block to move, the tail end of the flat plate is driven by the protruding block to move towards the contact position of the upper roller and the lower roller, the tail end of the flat plate is extruded by the protruding block to generate primary bending, the upper roller is in contact with the tail end of the flat plate and extrudes, the protruding block is extruded by the tail end of the flat plate to slide towards the groove, the upper roller and the lower roller are in contact with the tail end of the flat plate, the tail end of the flat plate is bent, and the machining speed of the barrel-shaped flat plate is increased.
2. According to the three-roller differential variable-curvature numerical control plate bending machine, the top of the convex block is arranged to be arc-shaped, the lower roller drives the flat plate to move, the flat plate moves until the tail end is contacted with the top of the convex block and is close to the upper roller part, and the tail end of the flat plate is guided by the arc-shaped surface of the top of the convex block, so that the tail end of the flat plate moves along the arc-shaped surface of the top of the convex block and is close to the upper roller part until the tail end of the flat plate is contacted with the surface of the lower roller, the effect of the convex block on bending the tail end of the flat plate is increased, and the bending effect of the flat plate is increased.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
in the figure: the device comprises a workbench 1, a motor 11, a hydraulic machine 12, a speed reducing mechanism 13, an extrusion mechanism 14, a supporting plate 15, a square hole 16, a sliding block 17, an upper roller 18, a lower roller 2, a groove 21, a bump 22, a roller 23, a limiting block 24, a first plate 3, a telescopic rod 31, a crawler 32, a cleaning block 33 and an elastic sheet 34.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the three-roller differential variable-curvature numerical control plate bending machine of the present invention comprises a worktable 1, a motor 11, a hydraulic machine 12 and a computer; the computer controls the hydraulic machine 12 and the motor 11; one end of the surface of the workbench 1 is fixedly connected with a motor 11, one side of the workbench 1 close to the motor 11 is fixedly connected with a speed reducing mechanism 13, and the output end of the motor 11 is fixedly connected with the input end of the speed reducing mechanism 13; one side of the workbench 1 close to the speed reducing mechanism 13 is provided with an extrusion mechanism 14, and the extrusion mechanism 14 is far away from the motor 11; one side of the workbench 1, which is far away from the extrusion mechanism 14, is uniformly and fixedly connected with a group of supporting plates 15, a group of lower rollers 2 are uniformly and rotatably connected between the adjacent supporting plates 15, the positions of the lower rollers 2 are positioned on the same horizontal plane, and one ends of the lower rollers 2, which are close to the motor 11, penetrate through the supporting plates 15 and are fixedly connected with the output end of the speed reducing mechanism 13; square holes 16 are formed in the middle positions of the supporting plates 15, detachable sliding blocks 17 are connected in the square holes 16 in a sliding mode, and the transverse positions of the sliding blocks 17 are fixedly arranged; an upper roller 18 is rotatably connected between the adjacent sliding blocks 17, one end of the upper roller 18, which is close to the motor 11, is connected with the sliding blocks 17 through a turnover bearing, and one end of the upper roller 18, which is far away from the motor 11, is detachably connected with the sliding blocks 17; the top of the supporting plate 15 is fixedly connected with a hydraulic machine 12, and the output end of the hydraulic machine 12 penetrates through the inner wall of the square hole 16 and is fixedly connected with a sliding block 17 through a bolt; a group of grooves 21 are uniformly formed in the surface of the lower roller 2, a lug 22 is connected in the groove 21 in a sliding manner, the lug 22 is connected with the bottom of the groove 21 through a return spring, and rollers 23 are arranged on two sides of the lug 22; the top of the inner wall of the groove 21 far away from the roller 23 is fixedly connected with a limiting block 24; a number plate 3 is arranged between the adjacent lower rollers 2, and telescopic rods 31 are fixedly connected between the two ends of the number plate 3 and the workbench 1; a caterpillar band 32 is sleeved on the working area of the upper roller 18 corresponding to the first plate 3, the caterpillar band 32 is connected with the first plate 3 in a sliding mode, and the transverse position of the caterpillar band 32 is fixedly arranged.
When the plate rolling machine is used, when a flat plate is machined into a barrel-shaped workpiece, the flat plate is placed from a gap between an upper roller 18 and a lower roller 2, one end of the flat plate which is firstly placed into the plate rolling machine is a head end, the end of the flat plate opposite to the head end is a tail end, the upper roller 18 is kept at the middle position of the flat plate, the plate rolling machine is started, a worker inputs the size of the machined and formed workpiece into a computer, the computer generates a machining flow code through calculation, the computer inputs the machining flow code into a controller in the computer, and the controller in the computer identifies the code and then controls the motor 11 to rotate; when the motor 11 rotates forwards, the motor 11 drives the speed reducing mechanism 13 to work, the speed reducing mechanism 13 drives the lower roller 2 to rotate, the controller controls the output end of the hydraulic machine 12 to downwards extrude the flat plate, the lower roller 2 rotates to drive the flat plate to move, and after the flat plate moves through the upper roller 18, the flat plate is influenced by the extrusion effect of the upper roller 18 to deform, so that the flat plate is preliminarily formed into an arc shape; when the motor 11 rotates reversely, the motor 11 drives the speed reducing mechanism 13 to work, the speed reducing mechanism 13 drives the lower roller 2 to rotate, the lower roller 2 drives the flat plate to move, the controller controls the output end of the hydraulic machine 12 to continuously extrude the flat plate downwards, and after the flat plate moves through the upper roller 18 part, the flat plate is further deformed under the extrusion effect of the upper roller 18, so that the flat plate is further bent; when the controller controls the motor 11 to rotate forwards or backwards once, the controller controls the output end in the hydraulic machine 12 to displace downwards and extrude the flat plate once, the crawler belt 32 is extruded by the flat plate to move along with the movement of the hydraulic machine 12, the crawler belt 32 drives the first plate 3 to move, and the first plate 3 drives the telescopic rod 31 to contract until the flat plate is processed into a barrel-shaped workpiece with the required size; by arranging the rollers 23, after the flat plate is placed, the output end of the hydraulic machine 12 downwards extrudes the flat plate, the flat plate is stressed to be close to the lower roller 2, the convex blocks 22 in the area covered by the flat plate are extruded by the flat plate to slide into the grooves 21, the rollers 23 outside the area covered by the flat plate contact the side edge of the flat plate, in the processing process, the output end of the hydraulic machine 12 applies pressure to the flat plate in the whole process, and the rollers 23 outside the area covered by the flat plate process the side edge of the flat plate in the whole process, so that the flat plate is limited by the rollers 23 in the processing process, the stability of the flat plate in the processing process is improved, the size precision of the flat plate after being processed and formed is improved, and the situation that the size error of the flat plate after being processed and formed is increased due to the fact that no limiting effect is generated in the processing process of the flat plate is avoided; when the flat plate is processed and formed into a barrel shape with a required size, a computer controls the motor 11 to rotate forwards, the motor 11 drives the speed reducing mechanism 13 to move, the speed reducing mechanism 13 drives the lower roller 2 to move, the lower roller 2 drives the barrel-shaped flat plate to move, the convex block 22 is contacted with the head end of the flat plate, the upper roller 18 extrudes the convex block 22 through the flat plate, the convex block 22 is stressed to slide in the groove 21, the head end of the flat plate is primarily deformed into an arc shape by the extrusion between the lower roller 2 and the upper roller 18, the tail end of the flat plate is contacted with one side of the convex block 22 close to the upper roller 18, the convex block 22 limits the tail end of the flat plate, the upper roller 18 drives the convex block 22 to move, the tail end of the flat plate moves towards the contact position of the upper roller 18 and the lower roller 2, the tail end of the flat plate is primarily bent by the motion and extrusion of the convex block 22, the upper roller 18 is contacted with the tail end of the flat plate and extruded, the convex block 22 is extruded towards the groove 21 to slide by the tail end of the extrusion of the flat plate, so that the upper roller 18 and the lower roller 2 are contacted with the tail end of the flat plate, bending the tail end of the flat plate, moving the tail end of the flat plate after passing through the contact position of the upper roller 18 and the lower roller 2 until contacting the caterpillar band 32, limiting the rebound quantity of the tail end of the flat plate after deformation by the caterpillar band 32, at the moment, a larger gap exists between the head end and the tail end of the flat plate, the caterpillar band 32 is pushed by the tail end of the flat plate under the influence of friction force, the tail end of the flat plate drives the crawler belt 32 to move until the crawler belt 32 sends the tail end of the flat plate to the surface of the second lower roller 2, the lug 22 in the second lower roller 2 contacts the tail end of the flat plate, drives the tail end of the flat plate to move towards the contact position of the second lower roller 2 and the upper roller 18 until the upper roller 18 and the second lower roller 2 finish extruding the tail end of the flat plate, and increases the processing speed of the barrel-shaped flat plate, therefore, the working efficiency of processing the flat plate into the barrel shape is increased, and the phenomenon that the working load of workers is increased and the processing efficiency of the barrel-shaped flat plate is reduced because the flat plate needs to be pre-bent before the plate is rolled by the workers is avoided; after the lower roller 2 drives the flat plate to move for a circle, the computer controls the motor 11 to rotate reversely, and the lower roller 2 drives the flat plate to move for a circle until the flat plate is bent and formed; in the invention, the sliding block 17 far away from the motor 11 is detachably arranged, the computer controls the extrusion mechanism 14 to extrude one end of the upper roller 18 close to the motor 11, the upper roller 18 inclines through the turnover bearing, the supporting plate 15 far away from the motor 11 is opened, the sliding block 17 far away from the motor 11 is detached, and a worker takes out a bent flat plate.
In one embodiment of the present invention, the top of the protrusion 22 is arc-shaped, and the radius of the arc-shaped top of the protrusion 22 is smaller than the radius of the lower roller 2.
When in use, the top of the lug 22 is arranged to be arc-shaped, the lower roller 2 drives the flat plate to move, the flat plate moves until the tail end contacts the part, close to the upper roller 18, of the top of the lug 22, the extension acting force generated by the reset spring is larger than the acting force of the tail end of the flat plate obliquely extruding the top of the lug 22, the tail end of the flat plate is guided by the arc-shaped surface of the top of the lug 22, the end of the flat plate is caused to move along the arcuate surface of the top portion of the projection 22, adjacent the portion of the upper roller 18, until the end of the flat plate contacts the surface of the lower roller 2, increasing the effect of the projection 22 in bending the end of the flat plate, thereby increasing the bending effect of the plate, preventing the plate ends from moving along the tops of the lugs 22 after they have moved into contact with the tops of the lugs 22, thereby passing over the projection 22 to contact the surface of the lower roller 2, the lower roller 2 presses the end of the flat plate, causing the end of the flat plate to be reversely bent, causing the reduction of the bending effect of the flat plate, damaging the flat plate and increasing the production cost.
As an embodiment of the invention, the two sides of the convex block 22 far away from the roller 23 and close to the arc top are arranged in an arc shape, and the arc bending direction of the two sides of the convex block 22 and close to the top is opposite to the arc direction of the top of the convex block 22.
When the device is used, the two sides of the convex block 22 far away from the roller 23 are arranged to be close to the arc top and are in an arc shape, the arc bending direction of the two sides of the convex block 22 close to the top is opposite to the arc direction of the top of the convex block 22, after the return spring drives the convex block 22 to reset, the convex block 22 contacts the limiting block 24 to stop moving, at the moment, the arc shapes of the two sides of the convex block 22 close to the top are in a tangent state with the surface of the lower roller 2, the lower roller 2 drives the convex block 22 and the flat plate to move, the top of the convex block 22 close to the upper roller 18 partially contacts the tail end of the flat plate, the tail end of the flat plate moves to the surface of the lower roller 2 along the top of the convex block 22 to pass through the arc transition of the two sides of the convex block 22 close to the top, the moving effect of the tail end of the flat plate is increased, and the bending effect of the flat plate is avoided after the tail end of the top of the convex block 22 close to the top of the upper roller 18 and the included angle of the surface of the lower roller 2 is avoided, the ends of the flat plate are caught, resulting in a reduction in the efficiency of flat plate processing.
In one embodiment of the present invention, a group of cleaning blocks 33 are uniformly attached to the surface of the track 32, and the cleaning blocks 33 are arranged perpendicular to the surface of the track 32.
When the cleaning device is used, the lower roller 2 drives the flat plate to move, the telescopic rod 31 generates thrust on the first plate 3, the telescopic rod 31 drives the first plate 3 to move, the first plate 3 drives the crawler belt 32 to move, and the crawler belt 32 drives the cleaning block 33 to move towards the bottom of the flat plate, so that the top of the cleaning block 33 is tightly attached to the bottom surface of the flat plate; when the motor 11 rotates, the lower roller 2 drives the flat plate to move, and due to the arrangement of the cleaning blocks 33, one side part of the top of each cleaning block 33 is in contact with the bottom of the flat plate, so that scraps generated after the bottom of the flat plate is bent and deformed are scraped out, and the scraps at the bottom of the flat plate fall between the adjacent cleaning blocks 33 to be collected after being scraped, so that the cleaning degree of the bottom surface of the flat plate is increased, and the scraps generated after the bottom of the flat plate is bent and deformed are prevented from entering the lower roller 2 and the upper roller 18 to extrude the flat plate, so that the bottom surface of the flat plate is damaged, and the outer surface of the barrel-shaped flat plate is damaged; the end of the flat plate contacts the cleaning block 33 after being pressed by the first lower roller 2 and the upper roller 18, the end of the flat plate pushes the cleaning block 33, and the cleaning block 33 moves the caterpillar 32 until the cleaning block 33 after collecting the debris moves to a downward state, thereby discharging the debris collected between the adjacent cleaning blocks 33.
In one embodiment of the present invention, the cleaning block 33 has a semicircular arc-shaped cross section, and the center of the cleaning block 33 is located below the crawler belt 32.
When the cleaning device is used, the section of the cleaning block 33 is in a semicircular arc shape, the circle center of the cleaning block 33 is positioned below the crawler belt 32, the tail end of the flat plate moves to one side of the cleaning block 33, the tail end of the flat plate moves along the semicircular arc surface of the cleaning block 33 until the tail end of the flat plate is clamped at the included angle position of the cleaning block 33 and the crawler belt 32, the movement speed of the cleaning block 33 is increased, the tail end of the flat plate pushes the cleaning block 33 to move until the cleaning block 33 moves towards the bottom of the first lower roller 2, the cleaning block 33 is separated from the tail end of the flat plate, the tail end of the flat plate is not limited by the included angle between the cleaning block 33 and the crawler belt 32 and moves towards the surface of the second lower roller 2, the movement efficiency of the tail end of the flat plate is increased, when the tail end of the flat plate moves towards the second lower roller 2, the top of the flat plate is prevented from being clamped at the included angle position between the first cleaning block 33 and the crawler belt 32 when moving towards the surface of the second lower roller 2, the efficiency of the movement of the ends of the flat plate is reduced, thereby reducing the efficiency of the bending of the flat plate.
As an embodiment of the invention, a group of elastic sheets 34 are fixedly connected to the top of each cleaning block 33, the elastic sheets 34 are arranged in an arc shape near the top, and the top of the adjacent elastic sheets 34 are in an arc shape which is relatively bent.
During the use, through setting up flexure strip 34, and flexure strip 34 is close to the top part and is the arc, lower roll 2 drives dull and stereotyped motion, telescopic link 31 produces thrust to a board 3, telescopic link 31 drives a board 3 motion, a board 3 drives track 32 motion, track 32 drives clean piece 33 and moves to dull and stereotyped bottom, clean piece 33 drives flexure strip 34 contact dull and stereotyped bottom surface, because adjacent flexure strip 34 is the arc of relative bending for top part, when making flexure strip 34 contact the flat board bottom surface, clean piece 33 extrusion flexure strip 34, flexure strip 34 receives the flat board bottom surface spacing and extends to both sides, make flexure strip 34 scrape the flat board bottom surface, scrape out the piece of flat board bottom surface, increase the clean efficiency of flat board bottom surface, thereby increase the smoothness nature on the tubbiness dull and stereotyped surface after the bending type.
The specific working process is as follows:
when a flat plate is processed into a barrel-shaped workpiece, the flat plate is placed from a gap between an upper roller 18 and a lower roller 2, the upper roller 18 is kept at the middle position of the flat plate, a plate rolling machine is started, a motor 11 drives a speed reducing mechanism 13 to move, the speed reducing mechanism 13 drives a lower roller 2 to move, the lower roller 2 drives the barrel-shaped flat plate to move, the upper roller 18 contacts the tail end of the flat plate and extrudes, a lug 22 is extruded by the tail end of the flat plate to slide towards a groove 21, so that the upper roller 18 and the lower roller 2 contact the tail end of the flat plate to bend the tail end of the flat plate, the tail end of the flat plate passes through the contact position of the upper roller 18 and the lower roller 2 to move until contacting a crawler belt 32, the crawler belt 32 limits the rebound amount after the tail end of the flat plate deforms, a larger gap exists between the head end and the tail end of the flat plate, the crawler belt 32 is pushed by the tail end of the flat plate under the influence of friction force, so that the tail end of the flat plate drives the crawler belt 32 to move until the flat plate is sent to the surface of the second lower roller 2, the lug 22 in the second lower roller 2 contacts the tail end of the flat plate to drive the tail end of the flat plate to move towards the contact position of the second lower roller 2 and the upper roller 18 until the upper roller 18 and the second lower roller 2 finish extruding the tail end of the flat plate; after the lower roller 2 drives the flat plate to move for a circle, the computer controls the motor 11 to rotate reversely, and the lower roller 2 drives the flat plate to move for a circle until the flat plate is bent and formed; taking out the flat plate after bending and forming by workers; the end of the flat plate is guided by the arc surface at the top of the lug 22, so that the end of the flat plate moves along the arc surface of the part of the top of the lug 22 close to the upper roller 18 until the end of the flat plate contacts the surface of the lower roller 2; the top of the lug 22 is partially contacted with the tail end of the flat plate close to the upper roller 18, and the tail end of the flat plate moves to the arc-shaped positions on the two sides of the lug 22 close to the top along the top of the lug 22 until contacting the surface of the lower roller 2, so that the tail end of the flat plate moves from the part of the top of the lug 22 close to the upper roller 18 to the surface of the lower roller 2 through the arc-shaped transition on the two sides of the lug 22 close to the top; one side part of the top of the cleaning block 33 contacts the bottom of the flat plate, scraps generated after the bottom of the flat plate is bent and deformed are scraped out, and the scraps at the bottom of the flat plate fall to the position between the adjacent cleaning blocks 33 after being scraped so as to be collected; the tail end of the flat plate pushes the cleaning block 33 to move until the cleaning block 33 moves towards the bottom of the first plate 3, the cleaning block 33 is separated from the tail end of the flat plate, and the tail end of the flat plate does not limit the included angle between the cleaning block 33 and the crawler belt 32 and moves towards the surface of the second lower roller 2; clean piece 33 drives flexure strip 34 contact dull and stereotyped bottom surface for when flexure strip 34 contacts the dull and stereotyped bottom surface, clean piece 33 extrusion flexure strip 34, flexure strip 34 receives dull and stereotyped bottom surface spacing and extends to both sides, makes flexure strip 34 carry out the spatula to dull and stereotyped bottom surface, scrapes the piece of dull and stereotyped bottom surface and shovels out, increases the clean efficiency of dull and stereotyped bottom surface, thereby increases the smoothness on tubbiness dull and stereotyped surface after the bending forming.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A three-roller differential variable-curvature numerical control plate bending machine is characterized in that: comprises a workbench (1), a motor (11), a hydraulic machine (12) and a computer; the computer controls the hydraulic machine (12) and the motor (11); one end of the surface of the workbench (1) is fixedly connected with a motor (11), one side of the workbench (1) close to the motor (11) is fixedly connected with a speed reducing mechanism (13), and an output end of the motor (11) is fixedly connected with an input end of the speed reducing mechanism (13); one side of the workbench (1) close to the speed reducing mechanism (13) is provided with an extrusion mechanism (14), and the extrusion mechanism (14) is far away from the motor (11); one side of the workbench (1) far away from the extrusion mechanism (14) is uniformly and fixedly connected with a group of supporting plates (15), a group of lower rollers (2) are uniformly and rotatably connected between the adjacent supporting plates (15), the positions of the lower rollers (2) are positioned on the same horizontal plane, and one ends of the lower rollers (2) close to the motor (11) penetrate through the supporting plates (15) and are fixedly connected with the output end of the speed reducing mechanism (13); square holes (16) are formed in the middle positions of the supporting plates (15), sliding blocks (17) are connected in the square holes (16) in a sliding mode, and the transverse positions of the sliding blocks (17) are fixedly arranged; an upper roller (18) is rotatably connected between the adjacent sliding blocks (17), one end, close to the motor (11), of the upper roller (18) is connected with the sliding blocks (17) through a turnover bearing, and one end, far away from the motor (11), of the upper roller (18) is rotatably connected with the sliding blocks (17); the top of the supporting plate (15) is fixedly connected with a hydraulic machine (12), and the output end of the hydraulic machine (12) penetrates through the inner wall of the square hole (16) and is fixedly connected with the sliding block (17) through a bolt; a group of grooves (21) are uniformly formed in the surface of the lower roller (2), the grooves (21) are connected with lugs (22) in a sliding mode, the lugs (22) are connected with the bottoms of the grooves (21) through return springs, and rollers (23) are arranged on two sides of each lug (22); the top of the inner wall of the groove (21) far away from the roller (23) is fixedly connected with a limiting block (24); a first plate (3) is arranged between the adjacent lower rollers (2), and a telescopic rod (31) is fixedly connected between the two ends of the first plate (3) and the workbench (1); the first mark plate (3) is sleeved with a crawler belt (32) corresponding to the working area of the upper roller (18), the crawler belt (32) is in sliding connection with the first mark plate (3), and the crawler belt (32) is fixedly arranged at the transverse position.
2. The three-roller differential variable-curvature numerical control plate bending machine according to claim 1, characterized in that: the top of the convex block (22) is arranged in an arc shape, and the arc radius of the top of the convex block (22) is smaller than that of the lower roller (2).
3. The three-roller differential variable-curvature numerical control plate bending machine as claimed in claim 2, characterized in that: the two sides of the convex block (22) far away from the roller (23) are arranged in an arc shape close to the arc top, and the arc bending direction of the two sides of the convex block (22) close to the top is opposite to the arc direction of the top of the convex block (22).
4. The three-roller differential variable-curvature numerical control plate bending machine according to claim 3, characterized in that: the surface of the crawler belt (32) is uniformly and fixedly connected with a group of cleaning blocks (33), and the cleaning blocks (33) are arranged perpendicular to the surface of the crawler belt (32).
5. The three-roller differential variable-curvature numerical control plate bending machine as claimed in claim 4, characterized in that: the section of the cleaning block (33) is in a semicircular arc shape, and the circle center of the cleaning block (33) is positioned below the crawler belt (32).
6. The three-roller differential variable-curvature numerical control plate bending machine according to claim 5, characterized in that: the top of the cleaning block (33) is fixedly connected with a group of elastic pieces (34), the elastic pieces (34) are arranged in an arc shape close to the top, and the top of the adjacent elastic pieces (34) is in an arc shape which is relatively bent.
CN202111605384.6A 2021-12-25 2021-12-25 Three-roller differential variable-curvature numerical control plate bending machine Pending CN114289551A (en)

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CN114850269B (en) * 2022-05-31 2023-07-28 江苏科力西铝业有限公司 L-shaped aluminum profile bending die

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