CN110538899B - Multi-shaft driving bending machine and bending method thereof - Google Patents
Multi-shaft driving bending machine and bending method thereof Download PDFInfo
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- CN110538899B CN110538899B CN201811123882.5A CN201811123882A CN110538899B CN 110538899 B CN110538899 B CN 110538899B CN 201811123882 A CN201811123882 A CN 201811123882A CN 110538899 B CN110538899 B CN 110538899B
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- 238000005452 bending Methods 0.000 title claims abstract description 259
- 238000000034 method Methods 0.000 title description 12
- 238000007599 discharging Methods 0.000 claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims description 109
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/18—Advancing work in relation to the stroke of the die or tool by means in pneumatic or magnetic engagement with the work
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
Abstract
The invention discloses a multi-shaft driving bending machine, which comprises a bending system and an integrated feeding and discharging system; the bending system comprises a horizontal bending driving device, and a horizontal bending shaft arranged in the horizontal direction is arranged on the horizontal bending driving device; a linkage bracket is arranged on the horizontal bending shaft; the upper end of the linkage support is also provided with an upper bending driving device and a lower bending driving device, an upper bending shaft and a lower bending shaft in the vertical direction are arranged on the upper bending driving device and the lower bending shaft, the shaft ends of the upper bending shaft and the lower bending shaft are provided with a bending knife support, and the upper end and the lower end of the bending knife support are respectively provided with an upper bending knife and a lower bending knife which are corresponding to each other in the upper position and the lower position. The bending machine is a multi-shaft driving bending machine, the upper bending knife and the lower bending knife can reach different positions through coordinated coordination and adjustment of bending driving, and the lower pressing fixing and loosening of the upper pressing knife and the feeding and discharging actions of feeding and discharging driving are controlled by the lower pressing driving lifting device, so that the bending of the bending piece with any shape, any angle and flexible radian is completed.
Description
Technical Field
The invention relates to the field of bending equipment and bending devices, in particular to a multi-shaft driving bending machine and a bending method thereof.
Background
Bending is accomplished through upper and lower bending knife linkage to the bender among the prior art, but current bender generally has comparatively showing shortcoming: the bending machine is limited in bending shape and bending angle, is not easy to control, and cannot achieve any required shape and required bending angle; the bending machine mainly comprises two points, one is the problem of a driving mode, the driving of the existing bending machine cannot realize a multi-shaft simultaneous linkage mechanism, and the bending cutter head can reach any position, so that the bending shape and the bending angle of the bending cutter head are limited; the cutter head of the bending cutter is designed to be too conventional, the shape of the cutter head after being produced is fixed, one cutter head is intelligently bent by a fixed angle, and the cutter head of the bending cutter in the prior art is usually arranged to be of a downward-pressing structure, so that the bending of the shape corresponding to the cutter head can only be completed; and when the bending is specific, different bending tool bits are required to be replaced frequently to finish corresponding bending, so that the working efficiency is seriously reduced.
In addition, feeding, discharging and positioning in the existing bending machine are generally controlled manually, and efficiency quality and precision are affected.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides a multi-shaft driving bending machine which has the following technical scheme:
a multi-shaft driving bending machine comprises a bending system and an integrated feeding and discharging system; the bending system comprises a horizontal bending driving device, and a horizontal bending shaft arranged in the horizontal direction is arranged on the horizontal bending driving device; a linkage bracket is arranged on the horizontal bending shaft; the upper end of the linkage support is also provided with an upper bending driving device and a lower bending driving device, an upper bending shaft and a lower bending shaft in the vertical direction are arranged on the upper bending driving device and the lower bending shaft, the shaft ends of the upper bending shaft and the lower bending shaft are provided with a bending knife support, and the upper end and the lower end of the bending knife support are respectively provided with an upper bending knife and a lower bending knife which are corresponding to each other in the upper position and the lower position.
The integrated feeding and discharging system comprises a feeding and discharging driving device, the driving direction of the feeding and discharging driving device corresponds to the positions of the upper and lower bending knives, a lifting mechanism is further arranged on the feeding and discharging driving device, and a rotating mechanism is arranged on the lifting mechanism in a linkage manner; the locking mechanism is arranged at the shaft end of the rotating shaft of the rotating mechanism, and corresponds to the height positions of the upper bending knife and the lower bending knife.
Preferably, the bending system further comprises a pressing driving lifting device, wherein the pressing driving lifting device is vertically arranged, the pressing shaft of the pressing driving lifting device extends downwards, and a pressing plate is arranged at the shaft end of the pressing shaft; the detachable upper pressing knife is arranged on the pressing plate, and a lower pressing knife which is fixedly arranged is arranged below the upper pressing knife; the upper bending knife and the lower bending knife correspond to the upper pressing knife and the lower pressing knife in position, and the locking mechanism corresponds to the upper pressing knife and the lower pressing knife in position.
Preferably, the upper pressing knife and the lower pressing knife are respectively provided with a pressing head extending to one side; the upper bending knife and the lower bending knife are arranged at one side of the upper and lower pressing knives, which extends out of the pressing head, and the upper and lower pressing knives are arranged between the upper and lower bending knives; the cutter bodies of the upper and lower bending cutters are also provided with inclined planes matched with the pressing heads; the end part of the inclined plane is provided with a calibration surface which is of an upper-lower surface structure all the time, and the extending end part of the calibration surface is also provided with a corresponding bending surface.
Preferably, the cross section of the bending surface is respectively a circular cross section, an arc-shaped cross section or an elliptical cross section.
Preferably, the lower end part of the pressing plate is also provided with a knife pressing groove, and the knife pressing groove is also provided with a clamping groove which is concave inwards; the side wall of the upper pressing plate of the knife pressing groove is also provided with a row of rotating ball shafts which extend outwards; each rotary ball shaft is provided with a pressing block with a lever structure, and the lower end of the pressing block corresponds to the position of the knife pressing groove; the upper pressing cutters are arranged into a single pressing cutter structure matched with the rotary ball shaft and the pressing blocks, the upper end of each upper pressing cutter is provided with a corresponding clamping block, the upper end of each upper pressing cutter is matched and installed in the pressing cutter groove, the clamping blocks are correspondingly clamped in the clamping grooves, and all the upper pressing cutters are installed to form an integral upper pressing cutter; and a jacking component is further arranged between the inner side of the upper end of the pressing block and the side wall of the pressing plate, and the lower end of the pressing plate is tightly pressed on the upper pressing knife under the principle of the jacking component and the lever structure, so that the upper pressing knife is detachably fixed on the pressing plate.
Preferably, a driving platform is arranged on the driving rod of the feeding and discharging driving device; lifting mechanisms are respectively arranged on two sides of the driving platform; the lifting rod of the lifting mechanism is provided with a lifting platform; the lower end of the lifting platform is hung with a rotating mechanism; the rotating shaft of the rotating mechanism extends out of the lifting platform, and the rotating platform is arranged at the shaft end of the rotating shaft; the locking mechanism is arranged on the rotary platform, the rotation angle of the locking mechanism on the rotary platform can be adjusted through the rotation of the rotation mechanism, the height of the locking mechanism can be adjusted up and down through the lifting mechanism, and the front and back positions of the locking mechanism can be adjusted through the feeding and discharging driving device.
Preferably, the lifting platform is also provided with an anti-backlash spring; one end of the anti-backlash spring is fixed on the rotating shaft of the rotating mechanism, and the other end is fixed on the lifting platform.
Preferably, the feeding and discharging driving device is a screw driving device, the driving rod is a driving screw, and driving guide rails are arranged on two sides of the feeding and discharging driving device; the middle of the driving platform is arranged on the driving screw rod through a threaded hole, and two sides of the driving platform are correspondingly arranged on the driving guide rail; and the lifting mechanism is arranged as a lifting cylinder, and the rotating mechanism is arranged as a rotating motor.
Preferably, the feeding and discharging driving device is a synchronous belt driving device; the locking mechanism is arranged as a sucker assembly or an electromagnet assembly; the sucking disc component is a sucking disc with an air suction device and capable of generating negative pressure suction, and the electromagnet component is a component capable of generating magnetic force.
Preferably, the device also comprises an upper and lower material worktable; the feeding and discharging workbench corresponds to the height position of the fixedly arranged pressing knife, and a dual-purpose groove integrating a feeding groove and a discharging groove is arranged in the middle of the feeding and discharging workbench; the feeding and discharging driving device is arranged below the dual-purpose groove; and the locking mechanism arranged on the rotary platform and the platform can pass through the dual-purpose groove to be adjusted up and down.
Preferably, the rear end of the dual-purpose groove on the feeding and discharging workbench is provided with a lifting type rear positioning device, the lifting type rear positioning device comprises a horizontal positioning guide rail arranged on the feeding and discharging workbench, an electric sliding block arranged on the horizontal positioning guide rail and a positioning lifting mechanism arranged on the electric sliding block, and a positioning clamping strip is arranged on a lifting rod of the positioning lifting mechanism; the upper and lower material working tables are provided with positioning grooves corresponding to the positioning clamping strips, and the positioning clamping strips can move up and down and left and right in the positioning grooves; and the combination of the electric sliding block and the positioning lifting mechanism as well as the positioning clamping strip is at least provided with two sets on the horizontal positioning guide rail.
One side of the dual-purpose groove is also provided with a guide rail type side positioning device; the guide rail type side positioning device comprises a positioning driving device, a positioning driving rod, a positioning driving track and a positioning platform arranged on the positioning driving rod and the positioning driving track; the positioning platform is provided with a positioning lifting mechanism, and the upper end of the positioning lifting mechanism is provided with a positioning block; the feeding and discharging workbench is also provided with a positioning groove corresponding to the positioning block; the positioning block can move back and forth in the positioning groove and can move up and down; the other table tops of the feeding and discharging workbench are embedded with feeding and discharging auxiliary conveying mechanisms; the feeding and discharging auxiliary conveying mechanism can be arranged to be of a ball structure or a brush structure.
Preferably, the device further comprises a bending fixing base; the horizontal bending driving device is at least provided with a set of corresponding horizontal bending driving devices which are arranged on the bending fixing base; the upper and lower bending driving devices on the linkage support are at least provided with one set; the downward-pressing driving lifting device is at least provided with one set and is correspondingly arranged above the bending fixed base; the lower pressing knife is fixedly arranged on the bending fixing base and is positioned on the same vertical plane corresponding to the position of the upper bending knife above the lower pressing knife; the upper bending knife and the lower bending knife are arranged on the same vertical plane up and down or are staggered up and down.
The invention also provides a bending method of the multi-axis driving bending machine, which comprises the following steps:
1) Firstly, adjusting the relative positions of an upper pressing knife and a lower pressing knife; the positions of the upper bending knife and the lower bending knife relative to the upper pressing knife and the lower pressing knife are adjusted; adjusting the position of the feeding and discharging driving device; adjusting the height of the lifting platform and the position of the locking mechanism;
2) The plate is placed on an upper blanking workbench, a positioning clamping strip of a lifting type rear positioning device is lifted, the rear end position of the plate is positioned through the positioning clamping strip, the position of a positioning block on a guide rail type side positioning device is adjusted, and the lateral position of the plate is positioned through the positioning block;
3) Lifting the lifting platform to a position where the locking mechanism contacts with the plate through a lifting mechanism on the feeding and discharging driving device, and locking and fixing the plate through the locking mechanism; the locking mechanism can be provided with a sucker, and the sucker generates negative pressure to suck the plate material through a negative pressure principle; the locking mechanism can also be arranged as an electromagnet, and the plate is fixed by the attraction of the electromagnet;
4) The plate fixed on the adsorption mechanism is moved to a position between the upper pressing knife and the lower pressing knife through the feeding and discharging driving device, and one end of the plate extends into the position between the upper pressing knife and the lower pressing knife;
5) The position of the upper pressing cutter is adjusted through the lower pressing driving lifting device, so that the upper pressing cutter is pressed down on the plate, the plate is pressed down, and the fed plate is fixed between the upper pressing cutter and the lower pressing cutter;
6) After the upper and lower pressing cutters compress the end parts of the plate, the bending of the bending piece with any shape, any angle and flexible radian is completed through the adjustment of the horizontal bending driving device and the upper and lower bending driving device, the pressing fixing and releasing of the lower pressing cutters controlled by the lower pressing lifting driving device, and the feeding and feeding actions of the feeding and discharging driving.
The beneficial effects are that: the invention has the following beneficial effects:
(1) The invention discloses a multi-shaft driving bending machine, which comprises a horizontal bending drive and an up-down bending drive for bending, an up-down feeding drive for feeding and discharging and a down-pressing lifting drive for controlling a pressing knife; the upper bending knife and the lower bending knife are arranged on the upper bending drive and the lower bending drive and are integrally arranged on the horizontal bending drive, the upper bending knife and the lower bending knife can reach different positions through the coordinated coordination and adjustment of the two bending drives, the lower pressing fixing and loosening of the upper pressing knife and the feeding and feeding actions of the upper and lower feeding drive are controlled by the coordination of the lower pressing lifting drive, the bending of the bending piece with any shape, any angle and flexible radian is completed, the integral bending process is programmable, the upper bending knife and the lower bending knife are not required to be replaced, the integral structure is reasonable and reliable, the bending difficulty is effectively reduced, the bending shape is increased, the width of the bending angle is greatly increased, and the working efficiency of the bending piece is greatly improved;
(2) The specific bending work in the invention is mainly finished by means of the matching of the upper pressing cutter, the lower pressing cutter and the upper bending cutter and the lower bending cutter, the upper pressing cutter and the lower pressing cutter are provided with triangular convex pressure heads, the upper pressing cutter and the lower bending cutter are provided with corresponding inclined planes which can be perfectly matched with the upper pressing cutter and the lower pressing cutter, the upper bending cutter body and the lower bending cutter body are provided with vertical calibration surfaces and bending surfaces with circular sections, wherein the effective contact surfaces of the bending cutters and the plate materials are bending surfaces, and the cross section shapes of the bending surfaces are macroscopically arranged to be circular structures, so that the bending surfaces can be arranged to be round-like elliptical and arc-shaped cross section structures; the bending knife is driven to move through the horizontal bending shaft and the vertical bending shaft, so that the bending surface is in contact with the plate material for bending, the bending surface is always tangent to the plate material during bending, the contact point between the bending surface and the plate material always moves around the point where the tool tips of the upper and lower pressing knives overlap in the bending process, and in addition, the upper and lower bending knives are respectively provided with the calibration surface as a movable positioning surface, so that the position of the plate material can be more conveniently positioned under certain conditions, the flexible bending can be better completed, and the bending work of the radian plate surface can be achieved, so that more bending shapes with more angles and more precision can be obtained on the premise of not changing the shape of the bending knife; in the device, the upper pressing knife is detachably mounted through the lever structure, so that the characteristic that the single upper pressing knife is convenient to replace can be realized, and the upper pressing knife is convenient to detach, repair and replace;
(3) The invention is also provided with an integral feeding and discharging device, the device is provided with a feeding work in the early stage, a feeding work in the middle stage and a discharging work after finishing the later stage bending, the feeding and discharging device mainly drives the plate to move to the position of the upper and lower pressing knives through the feeding and discharging driving device, the plate is fixedly adsorbed by a locking mechanism formed by a sucker, the height of the plate can be adjusted through a lifting mechanism and a lifting platform, the height is very important in the feeding and discharging processes, the height can be adjusted to be level with the height position of the lower pressing knives during feeding, the plate can be placed on the lower pressing knives to be fixed by the lower pressing knives, the bent part of the plate is possibly bent downwards after bending, at the moment, if the plate and the lower pressing knives are kept at the original feeding position, the plate can not be discharged, and the plate can be safely and conveniently discharged after the height of the plate is adjusted; the suction force is relieved during feeding and discharging through the suction disc, and feeding and discharging are very convenient; in addition, the angle of the plate can be adjusted through the rotating mechanism, the bending of the polygonal plate is very effective, and the angle back clearance during the operation of the motor can be effectively eliminated through the gap eliminating spring in the rotating mechanism, so that the rotating angle of the rotating mechanism is more accurate.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a top view of the structure of the present invention;
FIG. 4 is a view in the direction C of FIG. 2;
FIG. 5 is a diagram of an integral loading and unloading system according to the present invention;
FIG. 6 is a diagram showing the structure of the feeding and discharging driving device in the present invention;
FIG. 7 is a diagram showing a structure of a lifting type rear positioning device according to the present invention;
FIG. 8 is a block diagram of a track-type side positioning apparatus according to the present invention;
fig. 9 is an enlarged view at a in fig. 2;
FIG. 10 is an enlarged view at B in FIG. 2;
FIG. 11 is a diagram showing the cooperation of upper and lower press blades with upper and lower bending blades in the present invention;
FIG. 12 is a diagram showing the configuration of the upper and lower bending blades in the present invention;
fig. 13 is a bent sheet material completed by bending by the bending machine of the present invention;
FIG. 14 is a side view of the bent sheet of FIG. 13;
FIG. 15 is a diagram of a bending process for bending one end of the sheet material in FIG. 13;
fig. 16 is a diagram of a bending process of bending the other end of the sheet material in fig. 13.
Detailed Description
The invention will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the invention, it being understood that these examples are only intended to illustrate the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, a multi-axis driving bending machine is shown, which comprises a bending system and an integrated loading and unloading system; the bending system comprises a horizontal bending driving device 1, wherein a horizontal bending shaft 2 arranged in the horizontal direction is arranged on the horizontal bending driving device 1; a linkage bracket 3 is arranged on the horizontal bending shaft 2; the upper end of the linkage support 3 is also provided with an upper and lower bending driving device 4, an upper and lower bending shaft 5 in the vertical direction is arranged on the upper and lower bending driving device 4, the shaft ends of the upper and lower bending shafts 5 are provided with a bending cutter support 6, and the upper and lower ends of the bending cutter support 6 are respectively provided with an upper bending cutter 7 and a lower bending cutter 8 which are corresponding to each other in the upper and lower positions.
As shown in fig. 4, the integral feeding and discharging system comprises a feeding and discharging driving device 9, the driving direction of the feeding and discharging driving device 9 corresponds to the positions of the upper and lower bending knives, a lifting mechanism 10 is also arranged on the feeding and discharging driving device 9, and a rotating mechanism 11 is arranged on the lifting mechanism 10 in a linkage way; the shaft end of the rotating shaft of the rotating mechanism 11 is provided with a locking mechanism 12, and the locking mechanism 12 corresponds to the height positions of the upper bending knife and the lower bending knife.
As shown in fig. 2, the bending system further comprises a pressing-down driving lifting device 13, wherein the pressing-down driving lifting device 13 is vertically arranged, a pressing shaft 14 of the pressing-down driving lifting device 13 extends downwards, and a pressing plate 15 is arranged at the shaft end of the pressing shaft; the pressing plate 15 is provided with a detachable upper pressing cutter 16, and a lower pressing cutter 17 which is fixedly arranged is arranged below the upper pressing cutter 16; the upper and lower bending knives correspond to the upper and lower pressing knives, and the locking mechanism 12 corresponds to the upper and lower pressing knives.
As shown in fig. 9, 11 and 12, the upper presser 16 and the lower presser 17 are provided with a presser 18 extending to one side; the upper bending knife 7 and the lower bending knife 8 are arranged on one side of the upper and lower pressing knives, which extends out of the pressing head 18, and the upper and lower pressing knives are arranged between the upper and lower bending knives; the cutter bodies of the upper and lower bending cutters are also provided with inclined planes 19 matched with the pressing heads 18; the end of the inclined surface 19 is provided with a calibration surface 20, the calibration surface 20 is of an upper-lower surface structure all the time, and the extending end of the calibration surface 20 is correspondingly provided with a bending surface 21; the cross-sectional shape of the bending surface 21 is macroscopically a circular cross-sectional structure, and may be configured to have a corresponding circular-like structure, including an elliptical cross-section or an arc-shaped cross-section.
As shown in fig. 10, the lower end of the pressing plate 15 is further provided with a knife pressing groove 22, and a clamping groove 23 recessed inwards is further arranged in the knife pressing groove 22; a row of rotating ball shafts 24 extending outwards are also arranged on the side wall of the upper pressing plate 15 of the knife pressing groove 22; a pressing block 25 with a lever structure is arranged on each rotary ball shaft 24, and the lower end of the pressing block 25 corresponds to the position of the knife pressing groove 22; the upper pressing cutters 16 are arranged into a single pressing cutter structure matched with the rotary ball shaft 24 and the pressing blocks 25, the upper end of each upper pressing cutter 16 is provided with a corresponding clamping block 26, the upper end of each upper pressing cutter 16 is matched and installed in the pressing cutter groove 22, the clamping blocks 26 are correspondingly clamped in the clamping grooves 23, and all the upper pressing cutters 16 are installed to form an integral upper pressing cutter; a jacking component 27 is further arranged between the inner side of the upper end of the pressing block 25 and the side wall of the pressing plate 15, and the lower end of the pressing plate 15 is tightly pressed on the upper pressing knife 16 under the principle of the jacking component 27 and the lever structure so as to detachably fix the upper pressing knife 16 on the pressing plate 15; and wherein the jacking component 27 is formed by specifically installing a jacking spring and a locking bolt, and the lever jacking action of the pressing block 25 is realized under the action of the jacking spring and the locking bolt.
As shown in fig. 4, 5 and 6, a driving platform 92 is mounted on a driving rod 91 of the feeding and discharging driving device 9; lifting mechanisms 10 are respectively arranged on two sides of the driving platform 92; the lifting rod of the lifting mechanism 10 is provided with a lifting platform 28; the lower end of the lifting platform 28 is hung with a rotating mechanism 11; the rotating shaft of the rotating mechanism 11 extends out from the lifting platform 28, and the shaft end of the rotating shaft is provided with a rotating platform 29; the locking mechanism 12 is arranged on the rotating platform 29, the rotating angle of the locking mechanism 12 on the rotating platform 29 can be adjusted by rotating the rotating mechanism 11, the height of the rotating platform can be adjusted up and down by the lifting mechanism 10, and the front and back positions of the rotating platform can be adjusted by the feeding and discharging driving device 9; and an anti-backlash spring 30 is also arranged on the lifting platform 28; one end of the anti-backlash spring 30 is fixed on the rotating shaft of the rotating mechanism 11, and the other end is fixed on the lifting platform 28.
As shown in fig. 6, the feeding and discharging driving device 9 may be a screw driving device, the driving rod 91 is a driving screw, and driving guide rails 93 are further disposed on two sides of the feeding and discharging driving device 9; the middle of the driving platform 92 is arranged on the driving screw rod through a threaded hole, and two sides of the driving platform are correspondingly arranged on the driving guide rail 93; the lifting mechanism 10 is arranged as a lifting cylinder, and the rotating mechanism 11 is arranged as a rotating motor; the feeding and discharging driving device 9 of the device can also be set as a synchronous belt driving device; the locking mechanism 12 can be arranged as a sucker component with a negative pressure adsorption function or an electromagnet component adsorbed by magnetic force, so that the locking and fixing functions of the plate can be conveniently realized.
As shown in fig. 5, the invention further comprises a loading and unloading workbench 31; the feeding and discharging workbench 31 corresponds to the height position of the fixedly arranged pressing knife 17, and a dual-purpose groove 32 integrating a feeding groove and a discharging groove is arranged in the middle of the feeding and discharging workbench 31; the feeding and discharging driving device 9 is arranged below the dual-purpose groove 32; and the rotary platform 29 and the locking mechanism 12 mounted on the platform can be adjusted up and down through the dual-purpose slot 32.
As shown in fig. 7, the rear end of the dual-purpose slot 32 on the loading and unloading table 31 is provided with a lifting type rear positioning device 33, the lifting type rear positioning device 33 comprises a horizontal positioning guide rail 331 installed on the loading and unloading table 31, an electric sliding block 332 installed on the horizontal positioning guide rail 331, and a positioning lifting mechanism 333 installed on the electric sliding block 332, and a positioning clamping strip 334 is installed on a lifting rod of the positioning lifting mechanism 333; the upper and lower working tables 31 are provided with positioning grooves 37 corresponding to the positioning clamping strips 334, and the positioning clamping strips 334 can move up and down and left and right in the positioning grooves 37; the combination of the electric sliding block 332 and the positioning lifting mechanism 333 and the positioning clamping strip 334 is at least provided with two sets on the horizontal positioning guide rail 331; the rear end position of the plate can be effectively positioned through the lifting type rear positioning device, the positioning lifting mechanism 333 can be effectively adjusted to a position with proper width under the drive of the electric sliding block 332 according to the width of the plate, and the positioning clamping strip 334 can be hidden in the positioning groove 37 by the positioning lifting mechanism 333, so that the lifting type rear positioning device is convenient to use.
As shown in fig. 8, one side of the dual-purpose slot 32 is also provided with a guide rail type side positioning device 34; the guide rail type side positioning device 34 comprises a positioning driving device 341, a positioning driving rod 342 on the positioning driving device 341, a positioning driving rail 343 and a positioning platform 344 arranged on the positioning driving rod 342 and the positioning driving rail 343; the positioning platform 344 is provided with a positioning lifting mechanism 333, and the upper end of the positioning lifting mechanism 333 is provided with a positioning block 345; the loading and unloading workbench 31 is also provided with a positioning groove 37 corresponding to the positioning block 345; the positioning block 345 can move back and forth in the positioning groove 37 and can move up and down; the rest table surfaces of the feeding and discharging workbench 31 are embedded with a feeding and discharging auxiliary conveying mechanism 35; the feeding and discharging auxiliary conveying mechanism 35 can be set to be of a ball structure or a brush structure, and can facilitate the conveying of the finished plates.
As shown in fig. 2, further includes a bent fixing base 36; the horizontal bending driving device 1 is at least provided with a set of corresponding horizontal mounting on a bending fixing base 36; the upper and lower bending driving devices 4 on the linkage bracket 3 are at least provided with one set; the push-down driving lifting device 13 is at least provided with one set and is correspondingly arranged above the bending fixed base 36; the lower pressing knife 17 is fixedly arranged on the bending fixed base 36 and is positioned on the same upper surface and the same lower surface corresponding to the upper pressing knife 16 above; the upper bending knife 7 and the lower bending knife 8 are correspondingly arranged up and down, and the positions of the upper bending knife 7 and the lower bending knife 8 can be arranged on the same vertical plane or staggered up and down; this arrangement is set according to specific bending requirements.
When the lifting type plate feeding and discharging device is particularly used, a plate is placed on an feeding and discharging workbench, at the moment, the rear end position of the plate is lifted and positioned by the positioning clamping strip of the lifting type rear positioning device, the position of the positioning block on the guide rail type side positioning device is adjusted, the positioning block extends out of the positioning groove through the positioning lifting mechanism, the position of the positioning block is adjusted through the positioning driving device, the side end position of the plate is positioned, and therefore the whole plate is positioned on the feeding and discharging workbench.
Then the lifting platform is lifted to a position where the locking mechanism contacts with the plate material by a lifting mechanism on the feeding and discharging driving device, and the locking mechanism and the rotating platform are possibly positioned at a position which is level with the feeding and discharging workbench and also possibly positioned below the two-way groove; the locking mechanism is controlled to suck the lower end face of the plate so as to fix the plate.
Starting the feeding and discharging driving device to move forward to send one end face of the plate material to the position between the upper pressing knife and the lower pressing knife, wherein in the process, the sucking disc and the rotating platform move from the two-way groove, other parts of the plate material move through the upper and lower ball structures, and the feeding and discharging movement is smooth.
Then the upper pressing knife is adjusted to be pressed down on the plate material by the pressing-down driving lifting device, so that the fed plate material is fixed between the upper pressing knife and the lower pressing knife; the height position of the lower pressing knife corresponds to the position of the upper and lower material working tables, and even if deviation exists, the height of the plate can be adjusted through the lifting mechanism, so that the plate can be placed on the lower pressing knife in a matched mode; the upper pressing knife is detachably arranged in a lever type structure through the rotary ball shaft, the pressing block and the jacking component, and when one upper pressing knife needs to be replaced, the upper pressing knife is taken out to be replaced or maintained and removed very conveniently by only pressing the upper part of the pressing block to compress the jacking component and eliminating the pressing force at the lower end of the pressing block.
After the upper and lower pressing cutters compress the end parts of the plate, the upper pressing cutters can be controlled to be fixed and loosened by the coordination and the adjustment of the two bending drives, and the feeding and feeding actions of the upper pressing cutters and the feeding and discharging drives can be controlled by the lower pressing lifting drives, so that the bending of the bending piece with any shape, any angle and flexible radian can be completed.
As shown in fig. 13 and 14, the bending structures at two ends of the plate are finished by bending through the bending machine of the invention, and fig. 15 and 16 are bending processes of the plate; firstly, an upper and lower feeding driving device sends the end part of a plate material to a set length, a lower bending knife moves upwards, the plate material with the length is bent upwards to form a right angle, then the lower bending knife is adjusted downwards to a proper position, an upper pressing knife is loosened upwards, a locking mechanism at the moment always adsorbs and fixes the plate material, then the plate material is fed forwards to a set length, the upper pressing knife moves upwards after pressing down the fixed plate material, the plate material fed by the section is pressed upwards to form a right angle, whether the plate material is pressed to form a right angle or not is set according to the position of the upper and lower bending knife moving upwards and downwards, and the bending angles of the plate material by the upper and lower bending knives can be controlled by a program, and can be set directly or at other angles; therefore, the plate can be bent into a required shape and angle by repeating the steps; when the flexible arc shape is bent, the driving devices in the up-down direction and the horizontal direction are required to be linked to enable the bending head to move in an arc outline, so that the flexible bending can be completed.
The feeding and discharging driving device not only can perfectly adapt to three stages of bending, but also has a height up-down adjusting function and a rotation adjusting function, and can complete bending of the polygonal plate, and only needs to rotate to a designated angle through the rotation mechanism after each side is bent, and then the polygonal plate is fed into the bending mechanism for bending; in addition, in the rotating process of the rotating mechanism, the device is additionally provided with an anti-backlash spring which is fixed with the shaft of the rotating platform capable of rotating and is fixed with the lifting platform which does not rotate, so that the back joint in the rotating mechanism is permanently kept at the same side through the rotating force of the spring, the angle back clearance of a rotating motor which is commonly used as the rotating mechanism is eliminated, and the rotating angle is adjusted more accurately.
The above detailed description is only a preferred embodiment of the present invention and is not intended to limit the scope of the claims, but all equivalent changes and modifications that can be made according to the invention as described in the claims are intended to be included in the scope of the invention.
Claims (10)
1. A multi-axis drive bending machine, characterized in that: comprises a bending system and an integrated loading and unloading system; the bending system comprises a horizontal bending driving device (1), wherein a horizontal bending shaft (2) arranged in the horizontal direction is arranged on the horizontal bending driving device (1); a linkage bracket (3) is arranged on the horizontal bending shaft (2); the upper end of the linkage support (3) is also provided with an upper and lower bending driving device (4), an upper and lower bending shaft (5) in the vertical direction is arranged on the upper and lower bending driving device (4), the shaft ends of the upper and lower bending shafts (5) are provided with bending knife supports (6), and the upper and lower ends of the bending knife supports (6) are respectively provided with an upper bending knife (7) and a lower bending knife (8) which are corresponding to each other in the upper and lower positions;
the integrated feeding and discharging system comprises a feeding and discharging driving device (9), wherein the driving direction of the feeding and discharging driving device (9) corresponds to the positions of the upper and lower bending knives, a lifting mechanism (10) is further arranged on the feeding and discharging driving device (9), and a rotating mechanism (11) is arranged on the lifting mechanism (10) in a linkage manner; the locking mechanism (12) is arranged at the shaft end of the rotating shaft of the rotating mechanism (11), and the locking mechanism (12) corresponds to the height positions of the upper bending knife and the lower bending knife;
the bending system further comprises a pressing driving lifting device (13), the pressing driving lifting device (13) is vertically arranged, a pressing shaft (14) of the pressing driving lifting device (13) extends downwards, and a pressing plate (15) is arranged at the shaft end of the pressing shaft; the pressing plate (15) is provided with a detachable upper pressing knife (16), and a lower pressing knife (17) is arranged below the upper pressing knife (16); the upper bending knife and the lower bending knife correspond to the upper pressing knife and the lower pressing knife in position, and the locking mechanism (12) corresponds to the upper pressing knife and the lower pressing knife in position;
a driving platform (92) is arranged on a driving rod (91) of the feeding and discharging driving device (9); lifting mechanisms (10) are respectively arranged at two sides of the driving platform (92); the lifting rod of the lifting mechanism (10) is provided with a lifting platform (28); the lower end of the lifting platform (28) is hung with a rotating mechanism (11); the rotating shaft of the rotating mechanism (11) extends out of the lifting platform (28), and the shaft end of the rotating shaft is provided with a rotating platform (29); the locking mechanism (12) is arranged on the rotating platform (29), the rotating angle of the locking mechanism (12) on the rotating platform (29) can be adjusted by rotating the rotating mechanism (11), the height of the rotating platform can be adjusted up and down by the lifting mechanism (10), and the front and back positions of the rotating platform can be adjusted by the feeding and discharging driving device (9).
2. A multi-axis drive bending machine according to claim 1, wherein: the upper pressing knife (16) and the lower pressing knife (17) are respectively provided with a pressing head (18) extending to one side; the upper bending knife (7) and the lower bending knife (8) are arranged at one side of the upper and lower pressing knives, which is extended out by the pressing head (18), and the upper and lower pressing knives are arranged between the upper and lower bending knives; the cutter bodies of the upper and lower bending cutters are also provided with inclined planes (19) matched with the pressing heads (18); the end part of the inclined surface (19) is provided with a calibration surface (20), the calibration surface (20) is of an upper-lower surface structure all the time, and the extending end part of the calibration surface (20) is also provided with a corresponding bending surface (21).
3. A multi-axis drive bending machine according to claim 2, wherein: the section of the bending surface (21) is correspondingly provided with a round section or an arc section or an elliptic section.
4. A multi-axis drive bending machine according to claim 1, wherein: a cutter pressing groove (22) is formed in the lower end part of the pressing plate (15), and a clamping groove (23) recessed inwards is formed in the cutter pressing groove (22); the side wall of the pressing plate (15) is provided with a row of rotating ball shafts (24) extending outwards; a pressing block (25) is arranged on each rotary ball shaft (24), and the lower end of the pressing block (25) corresponds to the position of the cutter pressing groove (22); the upper pressing cutters (16) are of a single pressing cutter structure matched with the rotary ball shaft (24) and the pressing blocks (25), the upper end of each upper pressing cutter (16) is provided with a corresponding clamping block (26), the upper end of each upper pressing cutter (16) is matched and installed in the pressing cutter groove (22), the clamping blocks (26) are correspondingly clamped in the clamping grooves (23), and all the upper pressing cutters (16) are installed to form an integral upper pressing cutter; and a jacking component (27) is further arranged between the inner side of the upper end of the pressing block (25) and the side wall of the pressing plate (15), and the lower end of the pressing plate (15) is tightly pressed on the upper pressing knife (16) under the principle of the jacking component (27) and the lever structure, so that the upper pressing knife (16) is detachably fixed on the pressing plate (15).
5. A multi-axis drive bending machine according to claim 1, wherein: an anti-backlash spring (30) is also arranged on the lifting platform (28); one end of the anti-backlash spring (30) is fixed on the rotating shaft of the rotating mechanism (11), and the other end is fixed on the lifting platform (28).
6. A multi-axis drive bending machine according to claim 1, wherein: the feeding and discharging driving device (9) is a screw driving device or a synchronous belt driving device, the driving rod (91) is a driving screw, and driving guide rails (93) are arranged on two sides of the feeding and discharging driving device (9); the middle of the driving platform (92) is arranged on the driving screw rod through a threaded hole, and two sides of the driving platform are correspondingly arranged on the driving guide rail (93); and the lifting mechanism (10) is arranged as a lifting cylinder, and the rotating mechanism (11) is arranged as a rotating motor.
7. A multi-axis drive bending machine according to claim 1, wherein: the feeding and discharging driving device (9) is arranged as a synchronous belt driving device; the locking mechanism (12) is arranged as a sucker assembly or an electromagnet assembly with an induced draft negative pressure function.
8. A multi-axis drive bending machine according to claim 1, wherein: the feeding and discharging machine also comprises a feeding and discharging workbench (31); the feeding and discharging workbench (31) corresponds to the height position of the fixedly arranged pressing knife (17), and a dual-purpose groove (32) integrating a feeding groove and a discharging groove is arranged in the middle of the feeding and discharging workbench (31); the feeding and discharging driving device (9) is arranged below the dual-purpose groove (32); and the rotating platform (29) and the locking mechanism (12) arranged on the platform can pass through the dual-purpose groove (32) to be adjusted up and down.
9. A multi-axis drive bending machine as defined in claim 8, wherein: the rear end of the dual-purpose groove (32) on the feeding and discharging workbench (31) is provided with a lifting type rear positioning device (33), the lifting type rear positioning device (33) comprises a horizontal positioning guide rail (331) arranged on the feeding and discharging workbench (31), an electric sliding block (332) arranged on the horizontal positioning guide rail (331) and a positioning lifting mechanism (333) arranged on the electric sliding block (332), and a positioning clamping strip (334) is arranged on a lifting rod of the positioning lifting mechanism (333); a positioning groove (37) corresponding to the positioning clamping strip (334) is arranged on the feeding and discharging workbench (31), and the positioning clamping strip (334) can move up and down and left and right in the positioning groove (37); the combination of the electric sliding block (332), the positioning lifting mechanism (333) and the positioning clamping strip (334) is at least provided with two sets on the horizontal positioning guide rail (331);
one side of the dual-purpose groove (32) is also provided with a guide rail type side positioning device (34); the guide rail type side positioning device (34) comprises a positioning driving device (341), a positioning driving rod (342) on the positioning driving device (341), a positioning driving rail (343) and a positioning platform (344) arranged on the positioning driving rod (342) and the positioning driving rail (343); a positioning lifting mechanism (333) is arranged on the positioning platform (344), and a positioning block (345) is arranged at the upper end of the positioning lifting mechanism (333); a positioning groove (37) corresponding to the positioning block (345) is also arranged on the feeding and discharging workbench (31); the positioning block (345) can move back and forth in the positioning groove (37) and can move up and down; the rest table surfaces of the feeding and discharging workbench (31) are embedded with feeding and discharging auxiliary conveying mechanisms (35), and the feeding and discharging auxiliary conveying mechanisms (35) are in a ball structure or a brush structure.
10. A multi-axis drive bending machine according to claim 1, wherein: the bending fixing base (36) is also included; the horizontal bending driving device (1) is at least provided with a set of corresponding horizontal bending driving devices which are arranged on the bending fixing base (36); the upper and lower bending driving devices (4) on the linkage support (3) are at least provided with one set; the downward-pressing driving lifting device (13) is at least provided with one set and is correspondingly arranged above the bending fixed base (36); the lower pressing knife (17) is fixedly arranged on the bending fixed base (36) and is positioned on the same vertical plane corresponding to the upper pressing knife (16) above; the upper bending knife (7) and the lower bending knife (8) are arranged on the same vertical plane up and down or are staggered up and down.
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| CN201811123882.5A CN110538899B (en) | 2018-09-26 | 2018-09-26 | Multi-shaft driving bending machine and bending method thereof |
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| CN201811123882.5A CN110538899B (en) | 2018-09-26 | 2018-09-26 | Multi-shaft driving bending machine and bending method thereof |
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