CN110449491B - Bending unit of sheet metal flanging machine and sheet metal flanging machine - Google Patents
Bending unit of sheet metal flanging machine and sheet metal flanging machine Download PDFInfo
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- CN110449491B CN110449491B CN201910768783.0A CN201910768783A CN110449491B CN 110449491 B CN110449491 B CN 110449491B CN 201910768783 A CN201910768783 A CN 201910768783A CN 110449491 B CN110449491 B CN 110449491B
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- 238000005452 bending Methods 0.000 title claims abstract description 165
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 238000003825 pressing Methods 0.000 claims abstract description 226
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 241000272525 Anas platyrhynchos Species 0.000 claims description 101
- 230000001360 synchronised effect Effects 0.000 claims description 68
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 9
- 210000003734 kidney Anatomy 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000012545 processing Methods 0.000 abstract description 7
- 230000002950 deficient Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000006698 induction Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 238000009957 hemming Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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- 238000010008 shearing Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000007306 turnover 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
- 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
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
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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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/002—Positioning devices
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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
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention belongs to the technical field of sheet metal production equipment, and particularly relates to a bending unit of a sheet metal flanging machine, which is provided with a bottom plate (20), a first wallboard (201), a second wallboard (202), a supporting cross beam (203), a transmission shaft (21), an edge pressing cutter assembly (22), a fixed cutter holder (23) and a rotary cutter holder (24); the invention also relates to a metal plate flanging machine, which is provided with a base (1), wherein the base (1) is provided with a bending unit (2) and a conveying unit (4). The bending unit is assembled into the metal plate flanging machine, so that single-side bending or double-side simultaneous bending of the metal plate can be realized; the system program control is adopted, the operation is simple, and the bending angle and the bending height in the range can be changed at will; the full servo motor is adopted, so that green manufacturing is realized; the production efficiency is improved, the cost is reduced, the manpower is reduced, and the automation of the production process is realized; the workpiece processing size is uniform, the processing is stable, the consistency is good, the defective rate of products is greatly reduced, and the energy conservation and the emission reduction are realized.
Description
Technical Field
The invention belongs to the technical field of metal plate production equipment, and particularly relates to a metal plate flanging machine bending unit and a metal plate flanging machine.
Background
The flanging machine belongs to machining production equipment capable of carrying out bending treatment on edges of metal plates, and is used for flanging workpieces by adopting flanging cutter bodies with different angles at different stations. In the production process of door panels, file cabinets and safes, a flanging machine is often required to bend the plates, and the existing manual flanging machine is applied to a simple bending device and is manually positioned, so that the machining size is not uniform and the machining speed is low; in addition, the existing flanging machine can only carry out flanging treatment on the plate in one bending direction, and when the bending angle or direction is changed, the bending die is required to be changed, so that the use is inconvenient.
The technical scheme is that the folding square column is rotated by a rotating rod on the folding square column, so that V-shaped grooves required to be used on the folding square column are arranged on the upper end face of the folding square column, a steel plate is folded by a blade and the V-shaped grooves, and the V-shaped grooves with different angles on each face of the folding square column provide different folding angles for the steel plate;
Guangxi Tian Yang to Hengmen Co., ltd (CN 201610357540.4) disclose a bending machine comprising a frame, a pressing head, a workbench arranged on the frame and a folding mechanism arranged adjacent to the workbench. The workbench is provided with a first molding surface. The material pressing head is movably connected to the frame, and a second molding surface is arranged on the material pressing head. The turnover mechanism comprises a fixed plate, a movable plate and a sliding driving assembly, wherein the fixed plate is rotationally arranged on the workbench or the rack, the movable plate comprises a forming part and a connecting part formed by bending one side of the forming part, the connecting part is slidingly arranged on the fixed plate, and an included angle between a moving path of the connecting part and a plane where the forming part is located is an obtuse angle. The sliding driving assembly is arranged on the fixed plate and connected with the connecting part so as to drive the movable plate to reciprocate between a position close to the workbench and a position far away from the workbench along the moving path, and further the forming part can be matched with the first forming surface and the second forming surface alternatively so as to bend the workpiece;
the disclosed flanging equipment has the problem that two ends of a workpiece cannot be bent at the same time, one angle or one side of the workpiece is bent in one flanging machine or bending machine, and then the workpiece is conveyed to the other flanging machine or bending machine to bend the other angle or the other side of the workpiece, so that the processing cost is increased;
The Qingdao Mingyu intelligent equipment limited (CN 201821490542.1) discloses a forming device for bending a refrigerator door plate. The bending mechanism comprises a frame, a feeding mechanism for conveying workpieces is sequentially arranged along the working direction of the frame, two bending mechanisms for bending the workpieces and a discharging mechanism for outputting finished products are arranged, a bending area for processing and forming the workpieces is formed between the two bending mechanisms, a conveying belt for supporting the workpieces in an auxiliary mode and conveying the formed workpieces to the discharging mechanism is arranged between the two bending mechanisms, and the bending mechanism comprises a workbench, a pressing device and a folding device, wherein the workbench is arranged at one end of the conveying belt, the pressing device is used for pressing and positioning the workpieces to be bent on the workbench, and the folding device is used for bending and forming the pressed workpieces. According to the technology, two ends of workpieces with different sizes can be bent simultaneously through the two bending mechanisms.
Disclosure of Invention
The invention aims to provide a bending unit of a metal plate flanging machine, which is arranged on a base and assembled into the metal plate flanging machine on the basis of the prior art, can replace manual bending and realize single-side bending or double-side simultaneous bending of the metal plate; the system program control is adopted, the operation is simple, and the bending angle and the bending height in the range can be changed at will; the full servo motor is adopted, so that green manufacturing is realized; the production efficiency is improved, the cost is reduced, the manpower is reduced, and the automation of the production process is realized; the workpiece processing size is uniform, the processing is stable, the consistency is good, the defective rate of products is greatly reduced, and the energy conservation and the emission reduction are realized.
The invention provides the following technical scheme:
a sheet metal flanging machine bending unit which is characterized in that:
the bending unit is provided with a bottom plate, a first wallboard, a second wallboard, a supporting beam, a transmission shaft, an edge pressing cutter assembly, a fixed cutter holder and a rotary cutter holder;
The first wallboard and the second wallboard are oppositely arranged at the left end and the right end of the bottom plate, and a supporting beam and a transmission shaft are transversely arranged at the top end between the first wallboard and the second wallboard;
the left end and the right end of the transmission shaft are respectively provided with a synchronous pulley and a synchronous bearing, the synchronous bearings respectively penetrate through synchronous bearing holes formed in the upper ends of the first wallboard and the second wallboard, the synchronous bearing at one end is connected with a synchronous speed reducing motor, the inner sides of the first wallboard and the second wallboard are respectively provided with a driven synchronous pulley matched with the synchronous pulley, and an annular synchronous belt is arranged between the driven synchronous pulley and the synchronous pulley;
the edge pressing cutter assembly comprises a lower edge pressing cutter and an upper edge pressing cutter fixing plate; the side surface of the edge pressing knife is in a duck foot shape, and the top of the duck foot is provided with a fixed end;
The width of the edge pressing knife fixing plate is larger than the length of the bottom plate, the bottom of the edge pressing knife fixing plate is provided with an installation area with the width smaller than the length of the bottom plate, pressing plates are welded in parallel in the installation area, the height of each pressing plate is smaller than the height of each installation area, and the fixed end at the top of the edge pressing knife is arranged at the bottom of each pressing plate and is pressed and fixed in the installation area through a pressing block; the left end and the right end of the upper part of the edge pressing cutter fixing plate are fixedly provided with a toothed plate fixing seat and an edge pressing cutter sliding block through bolts, the toothed plate fixing seat is provided with a toothed plate, the annular synchronous belt is sleeved between the toothed plate and the toothed plate fixing seat, the toothed plate is fixedly arranged on the toothed plate fixing seat through bolts, the annular synchronous belt is tightly pressed on the toothed plate fixing seat, the toothed plate is provided with tooth grooves, and the tooth grooves are meshed with belt teeth on the annular synchronous belt; the edge pressing tool sliding blocks at each end of the edge pressing tool fixing plate are provided with more than two edge pressing tool sliding rails matched with the edge pressing tool sliding blocks, and the edge pressing tool sliding blocks are arranged on the edge pressing tool sliding rails;
The outer sides of the first wallboard and the second wallboard are provided with a pressing strip supporting block, a pressing strip cylinder and a pressurizing cylinder which correspond to the left end and the right end of the edge pressing knife assembly from bottom to top; the pressing strip supporting block is fixed on one side of the wallboard I or the wallboard II, which is far away from the edge pressing knife fixing plate of the edge pressing knife assembly; the pressing bar cylinder is obliquely fixed in the middle of the first wallboard or the second wallboard, and the pressing bar bolt is fixed on a cylinder sliding block of the pressing bar cylinder; the piston rod of the pressurizing cylinder is downward opposite to the middle of the upper end of the pressing bar;
A fixed cutter seat which is opposite to the edge pressing cutter in the up-down direction is arranged on the bottom plate, and the fixed cutter seat is fixed on the bottom plate through bolts; the fixed tool apron is adjacently provided with a rotary tool apron; the inner side of the fixed tool apron is provided with a fixed tool, and the inner side of the rotary tool apron is provided with a rotary tool; one side of the fixed knife close to the rotary knife is vertically opposite to the edge of the edge pressing knife;
The left end and the right end of the rotary tool apron are respectively provided with a rotary table and a gear bearing from inside to outside, a rotary table bolt is fixed at one end, far away from the fixed tool apron, of the rotary tool apron, a gear bearing screw is fixed on the rotary table, and the gear bearing is arranged in corresponding bearing holes on a first wallboard and a second wallboard at the outer side of the rotary tool apron; the gear bearing at one end of the rotary cutter holder is meshed with a pinion, the pinion is arranged in a corresponding small bearing hole on the first wallboard or the second wallboard, and the pinion is connected with a rotary cutter holder speed reducing motor corresponding to the first wallboard or the second wallboard;
A groove-shaped positioning bracket is fixed in the middle of the outer side of the rotary tool apron; the bottom of the positioning bracket is provided with a positioning cylinder seat, a positioning cylinder seat screw is fixed on two parallel guide grooves arranged at the bottom of the positioning bracket, a corner cylinder is arranged on the positioning cylinder seat, the top end of a rotating shaft of the corner cylinder is provided with a rotating arm and a clamping jig arranged at the end part of the rotating arm, and the clamping jig faces the direction of the rotating tool apron;
The outer side of the fixed tool apron is provided with left and right symmetrical positioning stops, each positioning stop is correspondingly provided with a horizontal cylinder and a vertical cylinder, the horizontal cylinder is fixed on the outer side of the fixed tool apron through bolts, the vertical cylinder is fixed on a connecting plate on the horizontal cylinder through bolts, and the connecting plate can move left and right at one end of the fixed tool apron along the horizontal cylinder; the positioning stop is fixed on the front cover of the vertical cylinder and can move up and down along the vertical cylinder to extend or retract.
In the bending unit of the metal plate flanging machine, preferably, the edge pressing knife is provided with an edge pressing knife main body and end head assemblies, and the number of the end head assemblies is 2; the 2 end head assemblies are symmetrically arranged at the left end and the right end of the edge pressing cutter main body respectively and are in mirror symmetry;
The end head assembly consists of a fixed duck foot and a movable duck foot, and the movable duck foot is arranged on the outer side of the fixed duck foot; in the compression state, the inner end face and the outer end face of the end head assembly are in a duck foot shape, the top of the duck foot is provided with a fixed end, and the bottom of the outer end of the duck foot is provided with a camber angle;
The outer side of the fixed duck foot is provided with a sliding outer inclined plane which is inclined downwards from outside to inside, a convex chute is arranged on the sliding outer inclined plane, and a waist round groove is arranged at the lower part in the chute;
The inner side of the movable duck foot is provided with a sliding inner inclined plane matched with the sliding outer inclined plane, a convex sliding column matched with the sliding groove is arranged on the sliding inner inclined plane, a round hole matched with the kidney-shaped groove is arranged on the sliding column, and an inner hexagon screw is arranged between the round hole and the kidney-shaped groove;
The fixed duck feet are connected with the movable duck feet by the positioning keys arranged on the joint surfaces of the fixed duck feet and the movable duck feet.
In the bending unit of the metal plate flanging machine, preferably, the camber angle of the end head assembly is 15-25 ︒.
In the bending unit of the metal plate flanging machine, preferably, the sliding inclination angle of the fixed duck feet is 43-47 ︒.
The bending unit of the metal plate flanging machine is preferably further provided with a safety cylinder, the safety cylinder is arranged on the inner side of the first wallboard or/and the second wallboard of the bending unit, the safety cylinder is positioned on the side part of the synchronous pulley and parallel to the synchronous pulley, and a cylinder sliding block of the safety cylinder is connected to a toothed plate fixing seat of the edge pressing cutter assembly through a connecting block.
The invention also provides a metal plate flanging machine, which is provided with a base, wherein the base is provided with the bending unit and a conveying unit,
The number of the bending units is two, and the base is also provided with a ball screw; the two bending units are adjacent and are arranged back and forth; the bottom plate of the back bending unit is fixed at the left end and the right end of the base in the two bending units; the left end and the right end of the base are provided with sliding rails and corresponding rail sliding blocks, the rail sliding blocks are fixedly arranged at the bottom of a bottom plate of a previous bending unit, and the bottom of the bottom plate is connected with the ball screw;
The conveying unit is provided with a truss, a supporting frame, a conveying sliding rail, a conveying mechanism, a telescopic cylinder and a telescopic shaft;
The front end of the front bending unit and the rear end of the rear bending unit are respectively provided with a supporting frame; the two groups of the supporting frames are arranged in groups, one group of the supporting frames is fixed on the outer side of the bottom plate of the bending unit, the other group of the supporting frames is fixed on the truss, and the two groups of the supporting frames are arranged in a staggered manner;
The conveying mechanism comprises a conveying speed reducing motor, two parallel conveying belts, a front support, a rear support and a driving wheel, wherein the two parallel conveying belts are respectively arranged at the left side and the right side of the positioning support; the front end and the rear end of the front bracket and the rear bracket are respectively provided with a driving wheel, the driving wheels are symmetrically arranged in groups along the left and right sides of each bracket, two conveying belts are sleeved on each group of driving wheels in parallel and are connected end to end respectively, and one group of driving wheels is connected with a conveying speed reducing motor;
The front end of the rear bracket is fixed on the outer side of the bottom plate of the rear bending unit, and the rear end of the rear bracket is fixed on the truss; the front end and the rear end of the front bracket are respectively provided with a front lifting cylinder and a rear lifting cylinder, one end of the front lifting cylinder is fixed on the truss, the other end of the front lifting cylinder is fixed on a cylinder supporting piece at the front end of the front bracket, one end of the rear lifting cylinder is fixed on a bottom plate of the front bending unit through a cylinder connecting plate, and the other end of the rear lifting cylinder is fixed on the cylinder supporting piece at the rear end of the front bracket;
The front support consists of a first support and a second support at the front end of the first support, a support supporting piece is arranged at the connecting end of the first support and the second support, an extension area is arranged at the support supporting piece end of the first support or the second support, a slide way is arranged in the extension area and the lower part of the corresponding first support or second support, and the first support or the second support can be slidably arranged on the slide way of the other support;
the telescopic cylinder is horizontally fixed between the bracket support piece and the cylinder support piece at the front end of the rear lifting cylinder, the rear end of the bracket support piece is provided with a telescopic shaft support piece, and the telescopic shaft support piece is arranged on the telescopic cylinder and can move forwards and backwards along with the telescopic cylinder; the telescopic shaft sets up to 2 parallels, and telescopic shaft one end is fixed in on the telescopic shaft support piece, and the trompil on cylinder support piece top of back lift cylinder front end is passed to the other end.
When the bending unit of the metal plate flanging machine is assembled into the metal plate flanging machine to carry out workpiece flanging, a control system is well known; the various cylinders, including but not limited to a layering cylinder, a pressurizing cylinder, a corner cylinder, a horizontal cylinder, a vertical cylinder, a safety cylinder, a telescopic cylinder, a front lifting cylinder and a rear lifting cylinder, are all provided with interfaces, and are directly controlled by an electromagnetic valve through being connected with a workshop air source to realize the operation and power output of each cylinder; the motors comprise the screw rod servo motor, the synchronous gear motor, the rotary tool apron gear motor and the conveying gear motor, all adopt servo motors, are electrically connected with the electromagnetic valves of the cylinders together and are electrically connected with the control system, each working unit of the flanging machine is automatically controlled through the control system, the cooperative work of each workpiece unit of the flanging machine is realized, and the connection relation and system configuration of the control system and each cylinder and the motor can be realized by a person skilled in the art.
The bending unit of the metal plate flanging machine is arranged on the base to be assembled into a flanging machine for bending the metal plate, and has the following advantages:
1. The bending unit of the metal plate flanging machine and the metal plate flanging machine are controlled by adopting a system program, are simple to operate, and can randomly change the bending angle and the bending height in a range;
Specifically, the edge folding of the plate workpiece is realized by driving the pinion to rotate by the rotating tool apron reducing motor under the pressing state of the edge pressing tool so as to drive the gear bearing, the turntable and the rotating tool apron to rotate, so that the bending angle of the workpiece can be changed at will within the design range without changing the tool body, and when the bending angle is changed, the operation is simple, only the rotating angle of the pinion is changed by the control system; in addition, during the edge folding operation, the bending position and the bending height of the workpiece can be adjusted only by driving the ball screw to adjust the width between the two bending units 2 through the screw servo motor, so that the edge folding device is convenient to use;
2. the invention adopts the full servo motor, thereby realizing green manufacture; according to the invention, the operations of lifting of the edge pressing cutter, rotating of the cutter holder for edge folding, loading and unloading of the plate workpiece and the like are realized through the bending unit of the metal plate edge folding machine and each motor of the edge folding machine, and each motor is electrically connected with the control system by adopting the servo motor, so that the operation of the workpiece on the edge folding machine and the bending unit forms an intelligent plate edge folding process with full automatic control of loading, positioning, compacting, bending, loosening and unloading, and green manufacturing is realized;
3. Compared with the existing plate bending process, the bending unit and the flanging machine adopted by the invention can be automatically controlled, so that the production efficiency is improved, the cost is reduced, the manpower is reduced, and the automation of the production process is realized; because the plate can be precisely positioned front and back and left and right on the flanging machine through the air cylinder, the machining size is uniform, the machining is stable, the consistency is good, the defective rate of products is greatly reduced, and the energy conservation and the emission reduction are realized.
Drawings
FIG. 1 is a schematic view showing the overall structure of a bending unit of a sheet metal hemming machine according to an embodiment of the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is an enlarged view of the whole structure of the edge pressing blade assembly, the fixed blade holder and the rotary blade holder of the bending unit in FIG. 1;
FIG. 4 is a view of the edge runner assembly B of FIG. 3;
FIG. 5 is a side view of the edge roller C of FIG. 4;
FIG. 6 is a top view of the stationary blade holder and the rotary blade holder of FIG. 3;
FIG. 7 is a view of the stationary and rotary tool holders D of FIG. 6;
FIG. 8 is a schematic view showing the overall structure of a sheet metal hemming machine according to a second embodiment of the present invention;
FIG. 9 is a view, i.e., a top view, of the sheet metal hemmer E of FIG. 8;
FIG. 10 is a schematic view showing the overall structure of a conveying mechanism of the conveying unit of the sheet metal hemming machine of FIG. 8;
FIG. 11 is an enlarged partial view of the first carriage of the conveyor of FIG. 10;
FIG. 12 is an enlarged view of the entire structure of the edge runner with the edge runner head assembly of FIG. 3;
FIG. 13 is a view from the direction of the edge pressing blade F of FIG. 12, i.e., a front view;
FIG. 14 is a schematic view of the overall structure of the hold-down state of the edge blade head assembly of FIG. 12;
FIG. 15 is a view of the edge roller head assembly G of FIG. 14 from the opposite, i.e., outside, side;
FIG. 16 is a view of the edge runner head assembly H of FIG. 14 from the opposite, i.e., inside, side;
FIG. 17 is a front view of the edge runner head assembly I of FIG. 14;
fig. 18 is a schematic view of the overall structure of a movable duck foot of the edge pressing blade head assembly of fig. 14;
fig. 19 is a view of the movable duck foot J of fig. 18 from the inward side;
fig. 20 is a front view of the movable duck foot K of fig. 18;
fig. 21 is a schematic view of the overall structure of a fixed duck foot of the edge pressing blade head assembly of fig. 14;
fig. 22 is a front view of the fixed duck foot L of fig. 21;
Fig. 23 is a view of the fixed duck foot M of fig. 21 from the outside;
FIG. 24 is a schematic view of the operation of the edge tool tip assembly of FIG. 14 avoiding an inner hem of a workpiece.
The numbering in the figures illustrates:
1, a base, 11 sliding rails and 12 rail sliding blocks; 2, a bending unit; 4, a ball screw; 51 safety cylinder; 52 induction lamps; 6, folding the inner edge of the workpiece 61;
20 bottom plates, 201 first wall plates, 202 second wall plates, 203 supporting beams, 21 transmission shafts, 211 synchronous pulleys, 212 synchronous bearings, 214 synchronous speed reducing motors, 215 driven synchronous pulleys and 216 annular synchronous belts;
22 edge pressing knife assemblies, 220 edge pressing knives, 2201 edge pressing knife bodies, 2202 end assemblies, 2203 fixed duck feet, 2203A sliding outer inclined surfaces, 2204 movable duck feet, 2204A sliding inner inclined surfaces, 2205 fixed ends, 2206 positioning keys, 2207 sliding columns, 2208 sliding grooves, 2209 waist round grooves, 2209A round holes, 221 edge pressing knife fixing plates, 2210 mounting areas, 222 toothed plate fixing seats, 2221 toothed plates, 223 edge pressing knife sliding blocks, 2231 edge pressing knife sliding rails, 224 pressing blocks, 225 pressing plates, 226 pressing bar supporting blocks, 227 pressing bars, 228 pressing bar cylinders and 229 pressurizing cylinders; alpha front inclination angle, beta camber angle, gamma sliding inclination angle;
23, fixing the knife holder, 231 and fixing the knife holder; 24 rotary knife holder, 241 rotary knife, 242 rotary table, 243 gear bearing, 244 pinion, 245 rotary knife holder gear motor; 25 positioning brackets, 251 positioning cylinder seats, 252 parallel guide grooves, 253 corner cylinders, 254 rotating arms and 255 clamping jigs; 26 positioning stop, 261 horizontal cylinder, 262 vertical cylinder, 263 connecting plate;
The conveying unit 3, the truss 30, the supporting frame 31, the conveying slide rail 32, the conveying mechanism 33, the telescopic cylinder 34, the telescopic shaft 341, the conveying gear motor 35, the conveying belt 36, the front bracket 37, the front lifting cylinder 371, the rear lifting cylinder 372, the cylinder connecting plate 373, the cylinder supporting member 374, the first bracket 375, the second bracket 376, the supporting member 377, the extension area 378, the telescopic shaft supporting member 379, the rear bracket 38 and the driving wheel 39.
Detailed Description
The following describes the technical scheme of the present invention in detail with reference to the drawings and the embodiments, and the protection scope of the present invention includes but is not limited to the following. The construction of the apparatus not mentioned in detail in the present invention may employ conventional techniques in the art.
Embodiment one:
As shown in fig. 1-2, the bending unit of the metal plate flanging machine is provided with a bottom plate 20, a first wallboard 201, a second wallboard 202, a supporting cross beam 203, a transmission shaft 21, a blank holder assembly 22, a fixed cutter holder 23 and a rotary cutter holder 24;
The first wallboard 201 and the second wallboard 202 are oppositely arranged at the left end and the right end of the bottom plate 20, and a supporting cross beam 203 and a transmission shaft 21 are transversely arranged at the top end between the first wallboard 201 and the second wallboard 202; in the implementation, the bottoms of the first wallboard 201 and the second wallboard 202 are respectively mounted at the left end and the right end of the bottom plate 20 by bolts, the two ends of the supporting beam 203 respectively penetrate through the first wallboard 201 and the second wallboard 202 and are fixed on the first wallboard 201 and the second wallboard 202 by threads at the two ends of the beam, and the supporting beam 203 can fix the first wallboard 201 and the second wallboard 202;
The left end and the right end of the transmission shaft 21 are respectively provided with a synchronous pulley 211 and a synchronous bearing 212, the synchronous bearings 212 respectively penetrate through synchronous bearing holes arranged at the upper ends of the first wallboard 201 and the second wallboard 202, the synchronous bearing 212 at one end is connected with a synchronous speed reducing motor 214, the inner sides of the first wallboard 201 and the second wallboard 202 are respectively provided with a driven synchronous pulley 215 matched with the synchronous pulley 211, and an annular synchronous belt 216 is arranged between the driven synchronous pulley 215 and the synchronous pulley 211; in specific implementation, equidistant tooth grooves are formed in the outer surface of the synchronous pulley 211, the annular synchronous belt 216 is an inner side single-sided tooth synchronous belt, the tooth shape of the synchronous belt is arc teeth, and when in motion, the tooth grooves in the outer surface of the synchronous pulley 211 are meshed with the belt teeth on the inner side of the annular synchronous belt 216 to transmit motion and power;
as shown in fig. 3-5, the edge runner assembly 22 includes a lower edge runner 220 and an upper edge runner mounting plate 221; as shown in fig. 5, the side surface of the edge pressing knife 220 is in a duck foot shape, the top of the duck foot is provided with a fixed end 2205, the bottom of the duck foot is horizontal, the front end of the duck foot is provided with a forward inclination angle alpha, and when the edge pressing knife is in practical implementation, the forward inclination angle alpha is 45 ︒;
In particular, as shown in fig. 4-5, the edge pressing knife fixing plate 221 is a square plate, the width of the square plate is larger than the length of the bottom plate 20, the bottom of the edge pressing knife fixing plate 221 is provided with a mounting area 2210 with a width smaller than the length of the bottom plate 20, the mounting areas 2210 are welded with pressing plates 225 side by side, the height of the pressing plates 225 is smaller than the height of the mounting areas 2210, and a fixed end 2205 at the top of the edge pressing knife 220 is arranged at the bottom of the pressing plates 225 and is pressed and fixed at the mounting areas 2210 through pressing blocks 224; in specific implementation, the pressing block 224 is fixed on the pressing plate 225 through a bolt, the pressing plate 225 is pressed against the fixed end 2205 of the upper end of the edge pressing knife 220 downwards, and the mounting area 2210 is matched with the pressing block 224 to press the front end and the rear end of the edge pressing knife 220, so that the edge pressing knife 220 is pressed and fixed on the edge pressing knife fixing plate 221; in specific implementation, the number of the pressing blocks 224 is more than two, and the number of the pressing blocks 224 is adaptively adjusted according to the width of the edge pressing knife 220 so as to meet the bending production requirements of workpieces with different widths;
the left end and the right end of the upper part of the edge pressing cutter fixing plate 221 are fixed with a toothed plate fixing seat 222 and an edge pressing cutter sliding block 223 by bolts, the toothed plate fixing seat 222 is provided with a toothed plate 2221, the annular synchronous belt 216 is sleeved between the toothed plate 2221 and the toothed plate fixing seat 222, the toothed plate 2221 is fixed on the toothed plate fixing seat 222 by bolts, the annular synchronous belt 216 is tightly pressed on the toothed plate fixing seat 222, the toothed plate 2221 is provided with tooth grooves, and the tooth grooves are meshed with belt teeth on the annular synchronous belt 216; more than two edge pressing tool sliding blocks 223 are arranged at each end of the edge pressing tool fixing plate 221, as shown in fig. 1, edge pressing tool sliding rails 2231 matched with the edge pressing tool sliding blocks 223 are arranged at one side of the first wall plate 201 and the second wall plate 202, which are positioned on the edge pressing tool assembly 22, and the edge pressing tool sliding blocks 223 are arranged on the edge pressing tool sliding rails 2231; when the annular synchronous belt 216 moves, the toothed plate 2221 drives the toothed plate fixing seat 222 to drive the edge pressing cutter assembly 22 to move, and the edge pressing cutter assembly 22 slides up and down along the edge pressing cutter sliding track 2231 under the drive of the edge pressing cutter sliding block 223;
As shown in fig. 1-2, outside the first wall plate 201 and the second wall plate 202, a pressing bar supporting block 226, a pressing bar 227, a pressing bar air cylinder 228 and a pressurizing air cylinder 229 which correspond to the left end and the right end of the edge pressing knife assembly 22 are arranged from bottom to top; the pressing strip supporting block 226 is fixed on one side of the first wallboard 201 or the second wallboard 202 far away from the edge pressing knife fixing plate 221 of the edge pressing knife assembly 22, and the upper surface of the pressing strip supporting block 226 is horizontal; the pressing bar air cylinder 228 is obliquely fixed in the middle of the first wallboard 201 or the second wallboard 202, the pressing bar 227 is fixed on an air cylinder sliding block of the pressing bar air cylinder 228 through bolts, nuts are arranged on two sides of the bottom of the pressing bar 227 in a specific implementation mode, and the pressing bar 227 can translate on the first wallboard 201 or the second wallboard 202 along the pressing bar air cylinder 228 under the driving of the air cylinder sliding block; the pressurizing cylinder 229 is fixed in the middle of the first wallboard 201 or the second wallboard 202, and a piston rod of the pressurizing cylinder 229 is downward opposite to the middle of the upper end of the pressing strip 227; in the implementation, the pressing bar air cylinder 228 is preferably a Laidek type RMT20×100 magnetic coupling rodless air cylinder, in the implementation, under the standby state, a piston rod of the pressurizing air cylinder 229 is retracted, the pressing bar 227 moves horizontally on the pressing bar air cylinder 228 to the side far away from the edge pressing cutter assembly 22, the pressing bar 227 is in a free state, the edge pressing cutter fixing plate 221 smoothly avoids the pressing bar 227 when the edge pressing cutter assembly 22 moves downwards, after the edge pressing cutter assembly 22 moves downwards to the fixed cutter seat 23 to contact a workpiece, the pressing bar air cylinder 228 drives the pressing bar 227 to move horizontally along the air cylinder sliding block towards the edge pressing cutter assembly 22, a nut at one end of the pressing bar 227 is pressed on the pressing bar supporting block 226, and a nut at the other end of the pressing bar 227 is pressed on the upper end of the edge pressing cutter fixing plate 221, and the pressurizing air cylinder 229 drives the piston rod to extend, contact and pressurize the pressing bar 227, so that the edge pressing cutter assembly 22 is pressed downwards; in the concrete implementation, 45 steel is adopted for the pressing strip, quenching and tempering are carried out, and the hardness of the pressing strip is increased;
As shown in fig. 3 and fig. 6-7, a fixed cutter holder 23 is arranged on the bottom plate 20 and is opposite to the edge pressing cutter 220 up and down, and the fixed cutter holder 23 is fixed on the bottom plate 20 by bolts; the fixed tool apron 23 is adjacently provided with a rotary tool apron 24; the fixed knife seat 23 is internally provided with the fixed knife 231, the rotary knife seat 24 is internally provided with the rotary knife 241, and when the fixed knife seat is implemented, the fixed knife and the rotary knife body are vertically arranged in the corresponding knife seats, the knife edge is upward, in the embodiment, the fixed knife 231 and the rotary knife 241 are both plate shearing machine blades, the blades are provided with mounting holes, the height and the width of the blades can be adaptively selected according to the size of a processed workpiece, and the blades can be directly purchased in the market and then are arranged; one side of the fixed knife 231 close to the rotary knife 241 is vertically opposite to the knife edge of the edge pressing knife 220; in the specific implementation, in the installation state, the upper surfaces of the fixed cutter seat 23, the fixed cutter 231, the rotary cutter 241 and the rotary cutter seat 24 are horizontal; in specific implementation, when the edge pressing tool assembly 22 is driven by the annular synchronous belt 216 to move downwards, the workpiece to be bent can be pressed between the edge pressing tool 220 and the fixed tool apron 23 and the fixed tool 231;
The left end and the right end of the rotary tool apron 24 are respectively provided with a rotary table 242 and a gear bearing 243 from inside to outside, the rotary table 242 is fixed at one end, far away from the fixed tool apron 23, of the outer side of the rotary tool apron 24 by bolts, the gear bearing 243 is fixed on the rotary table 242 by bolts, and the gear bearing 243 is arranged in corresponding bearing holes on the first wallboard 201 and the second wallboard 202 at the outer side of the rotary tool apron 24; the gear bearing 243 at one end of the rotary cutter holder 24 is meshed with a pinion 244, the pinion 244 is arranged in a corresponding small bearing hole on the first wallboard 201 or the second wallboard 202, and the pinion 244 is connected with a rotary cutter holder reducing motor 245 corresponding to the outside of the first wallboard 201 or the second wallboard 202; in specific implementation, the rotary tool holder reducing motor 245 provides power for the pinion 244, and the pinion 244 drives the gear bearing 243 to rotate, so that the rotary tool holder 24 is driven by the left and right rotary tables 242 to rotate or open along the direction of the rotary tool 241 for axially fixing the tool holder 23; in the specific implementation, the rotation angle of the rotary tool apron can be adjusted by adjusting the rotation angle of the pinion through adjusting the reduction motor 245 of the rotary tool apron according to the requirement of the workpiece edge folding angle to be processed, so that the required edge folding angle of the workpiece is obtained; in the embodiment, the bending angle can be easily realized as long as the bending angle is not more than 0-135 ︒ in the range of the front dip angle of the edge pressing knife 220, and the operation is simple;
As shown in fig. 6, a groove-shaped positioning bracket 25 is fixed on the middle part of the outer side of the rotary tool apron 24 by a bolt, a positioning cylinder seat 251 is arranged at the bottom of the positioning bracket 25, the positioning cylinder seat 251 is fixed on two parallel guide grooves 252 arranged at the bottom of the groove by bolts, a corner cylinder 253 is arranged on the positioning cylinder seat 251, the top end of a rotating shaft of the corner cylinder 253 is provided with a rotating arm 254 and a clamping jig 255 arranged at the end part of the rotating arm 254, and the clamping jig 255 faces the direction of the rotary tool apron 24; in specific implementation, the positioning cylinder block 251 can be manually adjusted to a proper position in the parallel guide groove 252 according to the length requirement of a workpiece to be processed, specifically, when the length of the workpiece to be processed is shortened, the screw for fixing the positioning cylinder block 251 can be loosened, the positioning cylinder block 251 is moved to a proper position in the direction of the rotary tool apron 24 in the parallel guide groove 252, and then the screw is screwed to fix the positioning cylinder block 251, so that the positions of the corner cylinder 253 and the clamping tool 255 are adjusted; in specific implementation, the corner air cylinder 253 adopts a sub-Deck 90ACK corner air cylinder, when a machined workpiece is fed or discharged in the bending unit 2, the corner air cylinder 253 rotates the clamping jig 255 into a groove of the positioning bracket 25 through rotation of the rotating arm 254, so that the machined workpiece can pass through the positioning bracket 25, the corner air cylinder 253 rotates the clamping jig 255 out of the groove of the positioning bracket 25 through rotation of the rotating arm 254, and the clamping jig 255 extends out for front and rear positioning of the workpiece;
As shown in fig. 7, a left-right symmetrical positioning stop 26 is arranged outside the fixed tool apron 23, and each positioning stop 26 is correspondingly provided with a horizontal cylinder 261 and a vertical cylinder 262; the horizontal cylinder 261 is fixed on the outer side of the fixed tool apron 23 through bolts, the vertical cylinder 262 is fixed on a connecting plate 263 on the horizontal cylinder 261 through bolts, and the connecting plate 263 can move left and right at one end of the fixed tool apron 23 along the horizontal cylinder 261; the positioning stop 26 is fixed on the front cover of the vertical cylinder 262, and the positioning stop 26 can move up and down along the vertical cylinder 262 to extend or retract. In specific implementation, in the standby state, the left and right positioning stop 26 is retracted below the plane of the fixed tool apron 23, and after the machined workpiece is fed to the bending unit 2 and passes through the clamping jig 255, the left and right vertical cylinders 262 push out the left and right positioning stop 26 above the plane of the fixed tool apron 23 respectively, and the left and right horizontal cylinders 261 drive the vertical cylinders 262 and the positioning stop 26 to move left and right at the same time, so that the left and right ends of the machined workpiece are limited in a required range; in particular, the horizontal cylinder 261 is a sub-Deck type coupled rodless cylinder and the vertical cylinder 262 is a sub-Deck type biaxial cylinder.
In this embodiment, as shown in fig. 1, the bending unit 2 is further provided with a safety cylinder 51, the safety cylinder 51 is disposed inside the first wall plate 201 and the second wall plate 202 of the bending unit 2, the safety cylinder 51 is located at the side of the synchronous pulley 211 and parallel to the synchronous pulley 211, and the cylinder slider of the safety cylinder 51 is connected to the toothed plate fixing seat 222 of the edge pressing cutter assembly 22 through a connecting block. In particular, the safety cylinder 51 is preferably a rodless cylinder coupled with a 2MS type of a sub-de-gram type, and the length of the cylinder is equal to that of the synchronous pulley 211; the safety cylinder 51 can cooperate the toothed plate fixing seat 222 and the edge pressing cutter sliding block 223 to limit the edge pressing cutter assembly 22 in a specific area of the bending unit 2, and in the process that the synchronous pulley 211 drives the edge pressing cutter assembly 22 to move up and down along the edge pressing cutter sliding track 2231, the cylinder sliding block on the safety cylinder 51 correspondingly moves up and down along with the edge pressing cutter sliding block 223 and drags the edge pressing cutter assembly 22, so that safety accidents caused by sudden falling of the edge pressing cutter assembly 22 are avoided.
Embodiment two:
FIGS. 8 to 9 show the overall structure of a sheet metal hemming machine in which the bending unit 2 shown in FIG. 1 is installed;
The metal plate flanging machine is provided with a base 1, wherein a bending unit 2 and a conveying unit 3 are arranged on the base 1, and when the metal plate flanging machine is specifically implemented, the metal plate flanging machine is provided with a corresponding control system which is arranged in a control cabinet and is provided with a corresponding control button or a man-machine operation interface; the number of the bending units 2 is two, and the base 1 is also provided with a ball screw 4; the two bending units 2 are adjacent and are arranged back and forth; in the two bending units 2, the bottom plate of the rear bending unit 2 is fixed at the left end and the right end of the base 1; the left end and the right end of the base 1 are provided with sliding rails 11 and corresponding rail sliding blocks 12, the rail sliding blocks 12 are fixedly arranged at the bottom of a bottom plate 20 of the previous bending unit 2, and the bottom of the bottom plate 20 is connected with the ball screw 4; in specific implementation, a nut seat matched with a nut of the ball screw 4 is fixed at the bottom of the bottom plate 20 through bolts, the nut of the ball screw 4 is arranged on the nut seat, and the ball screw is connected with a corresponding screw servo motor; in this way, in the two bending units 2, the front bending unit 2 is slidably arranged on the base 1, the rear bending unit 2 is fixedly arranged on the base 1, when the sheet metal flanging machine works, the rear bending unit 2 is fixed, the front bending unit 2 can move back and forth along the sliding track 11 under the action of the screw servo motor and the ball screw 4, the width between the two bending units 2 is adaptively adjusted according to the width of a workpiece to be processed, and in specific implementation, the bending position and the bending height of the workpiece can be adjusted only by driving the ball screw through the screw servo motor to adjust the width between the two bending units 2; in the implementation, more than two rail sliding blocks 12 are correspondingly arranged on each sliding rail 11, and the plurality of rail sliding blocks 12 can support the bottom plate 20 of the bending unit 2 on one hand and play a standby role on the other hand, and once the rail sliding blocks are damaged, other rail sliding blocks can be directly replaced for use;
A groove-shaped positioning bracket 25 is fixed in the middle of the outer side of the rotary cutter holder of the two bending units 2; in the specific implementation, in the standby state, the clamping jigs of the two bending units 2 are rotated and retracted in the groove of the positioning bracket 25, when a processed workpiece is fed to the bending unit 2 and passes through the clamping jigs, the clamping jigs on the outer side of the rotating tool apron of the front bending unit extend out to prop against the front end of the processed workpiece, and the clamping jigs on the outer side of the rotating tool apron of the rear bending unit extend out to prop against the rear end of the workpiece, so that the front and rear positioning of the workpiece is performed;
As shown in fig. 9 to 10, the conveying unit 3 is provided with a truss 30, a supporting frame 31, a conveying slide rail 32, a conveying mechanism 33, a telescopic cylinder 34 and a telescopic shaft 341; the front end of the front bending unit and the rear end of the rear bending unit are respectively provided with a supporting frame 31; the supporting frames 31 are provided with more than 2, are arranged symmetrically left and right, the conveying sliding rails 32 are arranged on the supporting frames 31 and correspond to the supporting frames 31 one by one, the supporting frames 31 are arranged in groups, one group of the supporting frames 31 in the groups is fixed on the outer side of the bottom plate 20 of the bending unit 2, the other group of the supporting frames is fixed on the truss 30, and the two groups of the supporting frames 32 are arranged in a staggered mode; as shown in fig. 9, the heights of all the supporting frames 31 are consistent, the relative positions of the two groups of supporting frames 31 can be adaptively changed according to the width between the two bending units 2, when the lead screw servo motor drives the ball screw 4 to enable the front bending unit 2 to move forwards and backwards along the sliding track 11, one group of supporting frames 31 fixed on the bottom plate 20 of the front bending unit 2 adaptively moves, the two groups of supporting frames 31 relatively move, and the workpiece to be conveyed can still be supported on the supporting frames 31; in a specific operation, after a machined workpiece enters the conveying unit 3, the machined workpiece is placed on the supporting frame 32, and the workpiece moves back and forth along the conveying sliding rail 32, so that smooth conveying of the workpiece is ensured; in particular practice, the conveying slide rail 32 is preferably a fluent strip, so that the workpiece can be conveyed and processed conveniently;
As shown in fig. 10, the conveying mechanism 33 includes a conveying gear motor 35, two parallel conveying belts 36, a front bracket 37, a rear bracket 38, and a driving wheel 39, wherein the two parallel conveying belts 36 are respectively disposed at the left and right sides of the positioning bracket 25; the front end and the rear end of the front bracket 37 and the rear bracket 38 are respectively provided with a driving wheel 39, the driving wheels 39 are symmetrically arranged in groups along the left and right sides of the brackets, two conveying belts 36 are sleeved on the driving wheels 39 in parallel and are connected end to end respectively, and one group of the driving wheels 39 is connected with a conveying speed reducing motor 35;
in the specific implementation, as shown in fig. 10, the front bracket 37 and the rear bracket 38 are respectively provided with a left bracket and a right bracket which are parallel, the conveyor belt 36 is sleeved on all the driving wheels, and bypasses all the driving wheels 39, two parallel closed loops are formed on the front bracket 37 and the rear bracket 38, and when the bending unit is specifically installed, the conveyor belt passing through the bending unit 2 passes through the lower part of the bottom plate 20; when the transmission gear motor 35 works, the transmission wheel 39 connected with the transmission gear motor 35 rotates to drive other transmission wheels and transmission belts to integrally rotate, the parallel transmission belts at the upper end of the front bracket 37 form a workpiece feeding transmission table, and the parallel transmission belts at the upper end of the rear bracket 38 form a workpiece discharging transmission table;
the front end of the rear bracket 38 is fixed on the outer side of the bottom plate 20 of the rear bending unit 2 through bolts, and the rear end of the rear bracket is fixed on the truss 30; the front end and the rear end of the front bracket 37 are respectively provided with a front lifting cylinder 371 and a rear lifting cylinder 372, one end of the front lifting cylinder 371 is fixed on the truss 30, the other end of the front lifting cylinder 371 is fixed on a cylinder supporting piece 374 at the front end of the front bracket 37, one end of the rear lifting cylinder 372 is fixed on the bottom plate 20 of the front bending unit 2 through a cylinder connecting plate 373, and the other end of the rear lifting cylinder 372 is fixed on the cylinder supporting piece 374 at the rear end of the front bracket 37; in the concrete implementation, the front lifting cylinder 371 and the rear lifting cylinder 372 are respectively provided with a mounting hole on a cylinder fixing plate and a cylinder body when being connected, the mounting holes on the cylinder fixing plate are mounted on a cylinder connecting plate 373 and the mounting holes on the cylinder body are mounted on a cylinder supporting piece when the rear lifting cylinder 372 is mounted, so that the cylinder supporting plate is lifted or lowered by the lifting cylinder when the rear lifting cylinder 372 works, the rear end of the front bracket 37 is driven to lift or lower, and likewise, the front lifting cylinder 371 is mounted on the front end of the truss 30 and the front end of the rear bracket 37 is driven to lift or lower by the cylinder work, so that the front lifting cylinder 371 and the rear lifting cylinder 372 work simultaneously and the front bracket 37 can be lifted or lowered integrally;
The front bracket 37 is composed of a first bracket 375 and a second bracket 376 at the front end thereof, a bracket supporting member 377 is arranged at the connecting end of the first bracket 375 and the second bracket 376, an extension area 378 is arranged at the end of the bracket supporting member 377 of the first bracket 375 or the second bracket 376, a slideway is arranged inside the extension area 378 and the lower part of the corresponding first bracket 375 or the second bracket 376, and the first bracket 375 or the second bracket 376 can be slidably arranged on the slideway of the other bracket; in particular, when the front bending unit 20 moves back and forth along the sliding rail 11, the first bracket 375 can correspondingly move back and forth relative to the second bracket 376, and the conveyor 36 can adaptively tension or retract to continue conveying the workpiece;
The telescopic cylinder 34 is horizontally fixed between the bracket support 377 and the cylinder support 374 at the front end of the rear lifting cylinder 372, as shown in fig. 11, a telescopic shaft support 379 is arranged at the rear end of the bracket support 377, and the telescopic shaft support 379 is mounted on the telescopic cylinder 34 and can move back and forth along with the telescopic cylinder 34; the number of the telescopic shafts 341 is 2 in parallel, one end of each telescopic shaft 341 is fixed on the telescopic shaft support 379, and the other end of each telescopic shaft 341 penetrates through an opening in the top end of the cylinder support 374 at the front end of the rear lifting cylinder 372; in specific implementation, the telescopic cylinder adopts a sub-german type coupling rodless cylinder, one end of the fixed end of the cylinder is fixed on the bracket supporting piece by a screw, the other end of the fixed end of the cylinder is fixed on the cylinder supporting piece at the front end of the rear lifting cylinder by a screw, the telescopic shaft supporting piece for installing the telescopic shaft is fixed on the sliding block of the cylinder by a screw, and when the sliding block of the cylinder moves forwards and backwards, the telescopic shaft supporting piece 379 drives the telescopic shaft 341 to move forwards and backwards, so that the telescopic shaft 341 extends or retracts towards the bending unit 2; in specific implementation, the telescopic shaft adopts an optical axis;
In the metal plate flanging machine, before the workpiece is conveyed and fed, the telescopic cylinders 34 are started to extend the two telescopic shafts 341, the two telescopic shafts 341 form a bridge between the front bending unit and the rear bending unit, and the workpiece enters a working table formed by fixed tool holders and rotating tool holders along the bridge formed by the telescopic shafts 341, so that the phenomenon of 'scraping the heads' is avoided, and the telescopic cylinders 34 drive the telescopic shafts 341 to return after the workpiece feeding is completed; when the workpiece is folded in the front and the rear of the two bending units, the front end and the rear end of the workpiece are not contacted with the conveyor belt, the conveyor belt cannot drive the workpiece to be fed, at the moment, the telescopic cylinder 34 drives the telescopic shaft 341 to extend, the workpiece is pushed by the telescopic shaft 341 to enter the conveyor belt at the rear end of the rear bending unit 2 backwards, and the conveyor belt drives the workpiece to be fed backwards;
In the invention, in the concrete implementation, in the standby state, the front lifting cylinder 371 and the rear lifting cylinder 372 descend the front support 37 below the conveying table surface where the conveying slide rail 32 is located, a workpiece firstly enters the conveying slide rail 32 of the supporting frame 31 at the front end of the front bending unit 2, after the metal plate flanging machine finishes the flanging and blanking of the previous workpiece, the front lifting cylinder 371 and the rear lifting cylinder 372 ascend the front support 37 to the conveying table surface where the conveying slide rail 32 is located, meanwhile, the telescopic cylinder 34 stretches out the telescopic shaft 341 to bridge on the two bending units 2, the conveying belt drives the workpiece to feed the workpiece to the working table surfaces on the two bending units along the conveying slide rail 32, after the workpiece is fed in place, the telescopic cylinder 34 drives the telescopic shaft 341 to return, the front lifting cylinder 371 and the rear lifting cylinder 372 drive the front support 37 to return, after the flanging unit begins to work, the front lifting cylinder 371 and the rear lifting cylinder 372 drive the front support 37 to ascend, the telescopic shaft 341 drives the telescopic shaft 341 to stretch out, the workpiece is pushed down and then enters the conveying belt at the rear end of the rear bending unit 2, the telescopic cylinder 34 drives the telescopic shaft 341 to return, and the front lifting cylinder 372 drives the workpiece to return the conveying belt to return to the rear end of the workpiece.
The sheet metal flanging machine of the present embodiment is operated as follows:
1. And (3) feeding:
The workpiece enters the supporting frame 32 of the conveying unit 3 at the front end of the front bending unit 2, the clamping jig is rotated and retracted by the corner cylinder of the front bending unit 2, the front support 37 is lifted to the conveying table surface where the conveying slide rail 32 is positioned by the front lifting cylinder 371 and the rear lifting cylinder 372, meanwhile, the telescopic cylinder 34 stretches out the telescopic shaft 341 to the upper bridge of the two bending units 2, the conveying belt drives the workpiece to feed to the working table surfaces on the two bending units along the conveying slide rail 32 under the driving of the conveying speed reducing motor, after the workpiece is fed in place, the telescopic cylinder 34 drives the telescopic shaft 341 to return, and the front lifting cylinder 371 and the rear lifting cylinder 372 drive the front support 37 to return;
2. positioning:
The horizontal cylinder and the vertical cylinder of the two bending units 2 work, the positioning block is extended out, and the workpiece is pushed to move left and right to a set position; the clamping jig is rotated and stretched out by the corner cylinders of the two bending units 2 to clamp the front end and the rear end of the workpiece respectively;
3. and (3) compacting:
The synchronous speed reducing motors of the two bending units 2 start the synchronous belt to drive the edge pressing cutter assembly to move downwards, so that the workpiece is pressed between the edge pressing cutter and the fixed cutter seat; the pressing bar cylinder drives the pressing bar to translate along the direction of the cylinder sliding block to the edge pressing knife assembly, a nut at one end of the pressing bar is pressed on the pressing bar supporting block, and a nut at the other end of the pressing bar is pressed on the upper end of the edge pressing knife fixing plate; the pressurizing cylinder drives the piston rod to extend out, contact and pressurize the pressing strip, so that the edge pressing knife assembly is pressed on the fixed knife holder;
4. bending:
The rotary tool apron reducing motor drives the pinion to rotate so as to drive the gear bearing to rotate, the rotary tool apron drives the rotary tool to rotate towards the direction of the fixed tool apron, the workpiece is inwards bent, the front edge folding of the workpiece is completed in the front bending unit 2, the rear edge folding of the workpiece is completed in the rear bending unit 2, and meanwhile, double edge folding is realized; after the edge folding is finished, the rotary knife holder drives the rotary knife to open, and the rotary knife is restored to the working table surface;
5. Loosening:
The pressurizing cylinder drives the piston rod to retract and leave the pressing bar, the pressing bar cylinder drives the pressing bar to translate along the direction of the supporting block along the cylinder sliding block, and the pressing bar is retracted to the side far away from the edge pressing knife combination; the synchronous speed reducing motor of the two bending units 2 starts the synchronous belt to drive the edge pressing cutter assembly to move upwards, so that a processed workpiece is left on a workbench surface between the two bending units; the horizontal cylinder and the vertical cylinder of the two bending units 2 work, and the positioning stop is retracted below the workbench surface;
6. and (3) blanking:
The corner cylinder of the back bending unit 2 is used for rotating and retracting the clamping jig, the front lifting cylinder 371 and the back lifting cylinder 372 drive the front support 37 to ascend, the telescopic cylinder 34 drives the telescopic shaft 341 to stretch out, a workpiece is pushed by the telescopic shaft 341 to enter the conveying belt at the rear end of the back bending unit 2 backwards, the telescopic cylinder 34 drives the telescopic shaft 341 to return, the front lifting cylinder 371 and the back lifting cylinder 372 drive the front support 37 to return, and the conveying belt at the rear end of the bending unit drives the workpiece to convey and discharge backwards.
In the embodiment, when the method is implemented, the operations of lifting the edge pressing cutter, rotating the cutter holder to rotate the edge folding, loading and unloading the plate workpiece and the like are realized through the bending unit of the metal plate edge folding machine and each motor of the edge folding machine, and each motor is electrically connected with the control system by adopting a servo motor, so that the operation of the workpiece on the edge folding machine and the bending unit forms the intelligent plate edge folding process with full automatic control of loading, positioning, compacting, bending, loosening and unloading. According to the processing change requirement of the workpiece, only the front edge folding or the rear edge folding of the workpiece can be processed in the bending process of the workpiece.
In specific implementation, the metal plate flanging machine can be further provided with an induction lamp 52, as shown in fig. 8, the induction lamp 52 is arranged at the lower end of the first wallboard or the second wallboard of the bending unit 2, and in specific implementation, the induction lamp 52 is fixed at two ends and is electrified, so that once an operator enters an induction area, the bending unit 2 stops working, and personnel damage is avoided.
Practice shows that the metal plate flanging machine can simultaneously and rapidly realize front and rear bidirectional flanging of the same workpiece, and improves the working efficiency; the machined workpieces are uniform in size and good in consistency.
In this embodiment, as shown in fig. 12-13, the edge pressing knife 220 may also be configured in a structure of an edge pressing knife main body 2201 and end assemblies 2202, where the number of the end assemblies 2202 is 2; the 2 end head assemblies 2202 are symmetrically arranged at the left end and the right end of the edge pressing knife main body 2201 and are in mirror symmetry; in a specific implementation, the fixed end 2205 of the edge pressing tool body 2201 is pressed and fixed at the middle position of the mounting area 2210 through the pressing block 224, and the end head assemblies 2202 are respectively pressed and fastened at the left end and the right end of the edge pressing tool body 2201 by adopting the same pressing block to form the combined edge pressing tool 220; in specific implementation, the width of the edge pressing tool body 2201 can be adaptively adjusted according to the width of a workpiece to be processed and bent, and the edge pressing tool 220 is assembled by only determining the width of the edge pressing tool body 2201 and then assembling the end head assemblies 2202 on the left and right ends;
As shown in fig. 14, the end assembly 2202 is composed of a fixed duck foot 2203 and a movable duck foot 2204, wherein the movable duck foot 2204 is arranged outside the fixed duck foot 2203; 15-16, the inner end surface and the outer end surface of the end head assembly 2202 are in a duck foot shape, the top of the duck foot is provided with a fixed end 2205, the front end of the duck foot is provided with a forward inclination angle alpha, and the bottom of the outer end of the duck foot is provided with a camber angle beta;
As shown in fig. 21-23, the outer side of the fixed duck foot is provided with a sliding outer inclined plane 2203A which is inclined from outside to inside downwards, a convex sliding groove 2208 is arranged on the sliding outer inclined plane 2203A, and a kidney-shaped groove 2209 is arranged at the lower part in the sliding groove 2208; the sliding outer inclined surface 18 has a sliding inclination angle γ;
as shown in fig. 18-20, the inner side of the movable duck foot 2204 is provided with a sliding inner inclined plane 2204A matched with the sliding outer inclined plane 2203A, a 'convex' shaped slide column 2207 matched with a sliding groove 2208 is arranged on the sliding inner inclined plane 2204A, a round hole 2209A matched with the kidney round groove 2209 is arranged on the slide column 2207, and an inner hexagon screw is arranged between the round hole 2209A and the kidney round groove 2209;
As shown in fig. 21 and 14, a positioning key 2206 is provided on the fixed duck foot 2203 at the junction surface of the fixed duck foot 2203 and the movable duck foot 2204 to connect the fixed duck foot 2203 and the movable duck foot 2204.
In particular embodiments, the fixed duck feet 2203 and the movable duck feet 2204 form an end assembly 2202, wherein the sliding column 2207 of the movable duck feet 2204 is obliquely inserted into the sliding groove 2208 of the fixed duck feet 2203 and is completely attached to the fixed duck feet 2203, and the sliding column 2207 can move obliquely upwards and downwards along the sliding groove 2208, so that the movable duck feet 2204 can move obliquely upwards and downwards relative to the fixed duck feet 2203; in the invention, the sliding inclination angle gamma is preferably 43-47 degrees, when the sliding inclination angle gamma is smaller than 43 degrees, the movable duck feet 2204 extend too much relative to the fixed duck feet 2204, so that the whole width of the combined edge pressing knife 220 is too large, the edge pressing knife 220 is not beneficial to avoiding left and right wallboards when moving up and down as a whole, and when the sliding inclination angle gamma is larger than 47 degrees, the movable duck feet 2204 are not beneficial to inwards retracting relative to the fixed duck feet 2204 due to the action of gravity in the downward pressing process of the edge pressing knife 220; in the invention, the sliding groove 2208 and the sliding column 2207 are designed into a convex shape, the space at the bottom of the convex shape can ensure that the movable duck feet 2204 realize oblique insertion combination and convenient up-down relative sliding through the sliding column 2207 and the fixed duck feet 2203, and the narrow space at the top of the convex shape can also prevent the movable duck feet 2204 from falling out of the fixed duck feet 2203 due to the separation of the sliding column 2207 and the sliding groove 2208 in the up-down moving process; because the sliding outer inclined surface 2203A of the fixed duck feet 2203 inclines from outside to inside, when the movable duck feet 2204 move downwards, the movable duck feet 2204 move downwards obliquely along the sliding outer inclined surface 2203A of the fixed duck feet 2203, namely extend inwards obliquely, and when the movable duck feet 2204 move upwards, the movable duck feet 2204 move upwards obliquely along the outer inclined surface 2203A, namely retract obliquely; the waist round groove 2209 and the positioning key 2206 play a limiting role on the movement of the movable duck feet 2204, the waist round groove 2209 enables the movable duck feet 2204 to move along the sliding groove 2207 in the downward movement process without falling off the bottoms of the fixed duck feet 2203, and the positioning key 2206 enables the movable duck feet 2204 to move upwards to be completely attached to the fixed duck feet 2203 and then not move upwards again to be separated from the tops of the fixed duck feet 2203;
FIG. 24 shows the operation of the edge pressing knife moving downward to press the workpiece 6 and the operation of the edge pressing knife releasing the workpiece 6 after bending is completed, wherein the edge pressing knife end assembly 2202 avoids the operation of the existing inner folded edge 61 on the left side or the right side of the workpiece 6, in the a diagram, the edge pressing knife is positioned above the workpiece 6, at the moment, the movable duck foot 2204 of the end assembly positioned at the left end or the right end of the edge pressing knife moves obliquely downward to extend, the lower end of the outer side of the end assembly 2202 retracts inward, the outer side of the movable duck foot 2204 is further away from the inner folded edge 61, in the b diagram, the end assembly moves downward along with the whole edge pressing knife, the outer side of the movable duck foot does not contact with the inner folded edge to collide with the upper surface of the workpiece, in the C diagram, the movable duck foot moves downward relative to the fixed duck foot, the outer side of the movable duck foot continuously moves toward the side of the workpiece 6, and along with the continuous downward movement of the edge pressing knife, the movable duck foot and the fixed duck foot moves upward and downward to completely reach the outermost side of the workpiece 6, and the outer side of the movable foot has an outward angle beta of 15 degrees, and the outer side beta is preferably lower than the inner folded edge by 20 degrees, and the inner folded edge is not contacted with the inner folded edge at the inner folded edge, and the inner folded edge is lower than 20 degrees, the inner folded edge is the inner folded, and is the inner folded at the inner folded edge is the side is the inner folded, and has the inner side is 20; in the specific implementation, when the camber angle beta of the end head assembly is smaller than 15 degrees, the end head assembly is not easy to manufacture, and when the camber angle beta is larger than 25 degrees, the camber angle instep is higher, and instead, the camber angle instep is easy to contact with the inner folded edge in the compaction process; after the workpiece 6 is bent, as shown in a graph e, the edge pressing knife starts to move upwards to loosen the workpiece 6, at the moment, the edge pressing knife moves upwards, the movable duck feet move downwards and stretch out relative to the fixed duck feet under the action of gravity, the outer sides of the movable duck feet are continuously separated from the side edges of the workpiece 6 to shrink inwards, along with the continuous upward movement of the edge pressing knife, the movable duck feet completely stretch out of the shrink inwards until the movable duck feet are in the graph f, the outer sides of the movable duck feet do not contact with the inner folded edges to move upwards when colliding, the edge pressing knife loosens the upper surface of the workpiece and moves upwards to leave the workpiece, and finally the standby state is restored.
In the invention, the front and the back are defined according to the movement direction of the workpiece when the flanging machine works, and the workpiece moves from front to back; defining left and right according to the forward and backward movement direction of the workpiece, wherein the left side of the forward movement direction of the workpiece is left; defining the inside and outside according to the relative positions of the units or parts of the flanging machine, such as the wallboard I and the wallboard II are arranged in the wallboard, the fixed cutter seat and the rotary cutter seat are arranged in the cutter seat, the edge pressing cutter is arranged in the end head assembly, and the like, and a person skilled in the art can understand the relative position relation of the parts and assemble the parts according to the invention;
The flanging machine is characterized in that various components of the flanging machine are fixed, including a bottom plate, a first wallboard, a second wallboard, a supporting beam, a synchronous bearing, a toothed plate fixing seat, a toothed plate, a pressing strip supporting block, a pressing strip cylinder, a pressurizing cylinder, a fixed cutter holder, a positioning bracket, a positioning cylinder seat, a corner cylinder, a horizontal cylinder, a vertical cylinder, a connecting plate, a supporting frame, a conveying sliding rail and the like, are preferably fixed in a bolt mode, and equipment components are convenient to replace, disassemble, assemble and transport.
Claims (6)
1. A sheet metal flanging machine bending unit which is characterized in that:
the bending unit (2) is provided with a bottom plate (20), a first wallboard (201), a second wallboard (202), a supporting cross beam (203), a transmission shaft (21), a blank pressing cutter assembly (22), a fixed cutter holder (23) and a rotary cutter holder (24);
The first wallboard (201) and the second wallboard (202) are oppositely arranged at the left end and the right end of the bottom plate (20), and a supporting cross beam (203) and a transmission shaft (21) are transversely arranged at the top end between the first wallboard (201) and the second wallboard (202);
Synchronous pulleys (211) and synchronous bearings (212) are arranged at the left end and the right end of the transmission shaft (21), the synchronous bearings (212) respectively penetrate through synchronous bearing holes formed in the upper ends of the first wallboard (201) and the second wallboard (202), the synchronous bearings (212) at one end are connected with a synchronous speed reduction motor (214), driven synchronous pulleys (215) matched with the synchronous pulleys (211) are respectively arranged on the inner sides of the first wallboard (201) and the second wallboard (202), and annular synchronous belts (216) are arranged between the driven synchronous pulleys (215) and the synchronous pulleys (211);
The edge pressing knife assembly (22) comprises a lower edge pressing knife (220) and an upper edge pressing knife fixing plate (221); the side surface of the edge pressing knife (220) is in a duck foot shape, and the top of the duck foot is provided with a fixed end (2205);
The width of the edge pressing knife fixing plate (221) is larger than the length of the bottom plate (20), an installation area (2210) with the width smaller than the length of the bottom plate (20) is arranged at the bottom of the edge pressing knife fixing plate (221), pressing plates (225) are welded in parallel in the installation area (2210), the height of each pressing plate (225) is smaller than that of the installation area (2210), and a fixed end (2205) at the top of each edge pressing knife (220) is arranged at the bottom of each pressing plate (225) and is pressed and fixed in the installation area (2210) through a pressing block (224); the left end and the right end of the upper part of the edge pressing cutter fixing plate (221) are fixedly provided with a toothed plate fixing seat (222) and an edge pressing cutter sliding block (223), the toothed plate fixing seat (222) is provided with a toothed plate (2221), the annular synchronous belt (216) is sleeved between the toothed plate (2221) and the toothed plate fixing seat (222), the toothed plate (2221) is fixedly arranged on the toothed plate fixing seat (222) through bolts, the annular synchronous belt (216) is tightly pressed on the toothed plate fixing seat (222), the toothed plate (2221) is provided with tooth grooves, and the tooth grooves are meshed with belt teeth on the annular synchronous belt (216); the edge pressing knife sliding blocks (223) at each end of the edge pressing knife fixing plate (221) are provided with more than two edge pressing knife sliding rails (2231) matched with the edge pressing knife sliding blocks (223) are arranged on one side of the first wallboard (201) and the second wallboard (202) which are positioned on the edge pressing knife assembly (22), and the edge pressing knife sliding blocks (223) are arranged on the edge pressing knife sliding rails (2231);
Outside the first wallboard (201) and the second wallboard (202), a pressing strip supporting block (226), a pressing strip (227), a pressing strip air cylinder (228) and a pressurizing air cylinder (229) which correspond to the left end and the right end of the edge pressing knife assembly (22) are arranged from bottom to top; the pressing strip supporting block (226) is fixed on one side of the first wallboard (201) or the second wallboard (202) far away from the edge pressing knife fixing plate (221); the pressing bar air cylinder (228) is obliquely fixed between the first wallboard (201) and the second wallboard (202), and the pressing bar (227) is fixed on an air cylinder sliding block of the pressing bar air cylinder (228) through bolts; the pressurizing cylinder (229) is fixed in the middle of the first wallboard (201) or the second wallboard (202), and a piston rod of the pressurizing cylinder (229) is downward opposite to the middle of the upper end of the pressing bar (227);
A fixed cutter holder (23) which is vertically opposite to the edge pressing cutter (220) is arranged on the bottom plate (20), and the fixed cutter holder (23) is fixed on the bottom plate (20) through bolts; the fixed tool apron (23) is adjacently provided with a rotary tool apron (24); a fixed knife (231) is arranged on the inner side of the fixed knife holder (23), and a rotary knife (241) is arranged on the inner side of the rotary knife holder (24); one side of the fixed knife (231) close to the rotary knife (241) is opposite to the edge of the edge pressing knife (220) up and down;
The left end and the right end of the rotary tool apron (24) are respectively provided with a rotary table (242) and a gear bearing (243) from inside to outside, the rotary table (242) is fixed at one end, far away from the fixed tool apron (23), of the outer side of the rotary tool apron (24) by bolts, the gear bearing (243) is fixed on the rotary table (242) by bolts, and the gear bearing (243) is arranged in corresponding bearing holes on a first wallboard (201) and a second wallboard (202) of the outer side of the rotary tool apron (24); a gear bearing (243) at one end of the rotary tool apron (24) is meshed with a pinion (244), the pinion (244) is arranged in a corresponding small bearing hole on the first wallboard (201) or the second wallboard (202), and the pinion (244) is connected with a rotary tool apron reducing motor (245) corresponding to the outside of the first wallboard (201) or the second wallboard (202);
A groove-shaped positioning bracket (25) is fixed in the middle of the outer side of the rotary tool apron (24); a positioning cylinder seat (251) is arranged at the bottom of the positioning bracket (25), the positioning cylinder seat (251) is fixed on two parallel guide grooves (252) arranged at the bottom of the positioning bracket by screws, a corner cylinder (253) is arranged on the positioning cylinder seat (251), the top end of a rotating shaft of the corner cylinder (253) is provided with a rotating arm (254) and a clamping jig (255) arranged at the end part of the rotating arm (254), and the clamping jig (255) faces the direction of the rotating tool apron (24);
The outer side of the fixed tool apron (23) is provided with left-right symmetrical positioning stop (26), each positioning stop (26) is correspondingly provided with a horizontal cylinder (261) and a vertical cylinder (262), the horizontal cylinders (261) are fixed on the outer side of the fixed tool apron (23) through bolts, and the vertical cylinders (262) are fixed on a connecting plate (263) on the horizontal cylinders (261) through bolts; the positioning stop (26) is fixed on the front cover of the vertical cylinder (262).
2. The sheet metal flanging machine bending unit as in claim 1, wherein: the edge pressing knife (220) is provided with an edge pressing knife main body (2201) and end head assemblies (2202), and the number of the end head assemblies (2202) is 2; the 2 end head assemblies (2202) are symmetrically arranged at the left end and the right end of the edge pressing cutter body (2201) respectively and are in mirror symmetry;
the end head assembly (2202) consists of a fixed duck foot (2203) and a movable duck foot (2204), and the movable duck foot (2204) is arranged on the outer side of the fixed duck foot (2203); in the pressed state, the inner end face and the outer end face of the end head assembly (2202) are in a duck foot shape, the top of the duck foot is provided with a fixed end (2205), and the bottom of the outer end of the duck foot is provided with a camber angle beta;
The outer side of the fixed duck foot is provided with a sliding outer inclined surface (2203A) which is inclined downwards from outside to inside, a convex chute (2208) is arranged on the sliding outer inclined surface (2203A), and a waist round groove (2209) is arranged at the lower part in the chute (2208);
The inner side of the movable duck foot (2204) is provided with a sliding inner inclined surface (2204A) matched with the sliding outer inclined surface (2203A), a convex sliding column (2207) matched with a sliding groove (2208) is arranged on the sliding inner inclined surface (2204A), a round hole (2209A) matched with the kidney round groove (2209) is arranged on the sliding column (2207), and an inner hexagon screw is arranged between the round hole (2209A) and the kidney round groove (2209);
The fixed duck feet (2203) are provided with positioning keys (2206) at the joint surfaces of the fixed duck feet (2203) and the movable duck feet (2204), and the fixed duck feet (2203) and the movable duck feet (2204) are connected.
3. The sheet metal flanging machine bending unit as in claim 2, wherein: the camber angle beta of the end head assembly (2202) is 15-25 deg..
4. The sheet metal flanging machine bending unit as in claim 2, wherein: the sliding inclination angle gamma of the fixed duck feet (2203) is 43-47 degrees.
5. The sheet metal flanging machine bending unit as in claim 1, wherein: the bending unit (2) is further provided with a safety air cylinder (51), the safety air cylinder (51) is arranged on the inner side of a first wallboard (201) or/and a second wallboard (202) of the bending unit (2), the safety air cylinder (51) is located on the side portion of the synchronous pulley (211), and an air cylinder sliding block of the safety air cylinder (51) is connected to a toothed plate fixing seat (222) of the edge pressing cutter assembly (22) through a connecting block.
6. A sheet metal flanging machine, is equipped with base (1), is provided with on base (1) bending unit (2) of claim 1, still is provided with conveying unit (3), its characterized in that:
The number of the bending units (2) is two, and the base (1) is also provided with a ball screw (4); the two bending units (2) are adjacent and are arranged in a front-back way; in the two bending units (2), the bottom plate (20) of the rear bending unit (2) is fixed at the left end and the right end of the base (1); the left end and the right end of the base (1) are provided with sliding rails (11) and corresponding rail sliding blocks (12), the rail sliding blocks (12) are fixedly arranged at the bottom of a bottom plate (20) of a front bending unit (2), and the bottom of the bottom plate (20) is connected with the ball screw (4);
The conveying unit (3) is provided with a truss (30), a supporting frame (31), a conveying sliding rail (32), a conveying mechanism (33), a telescopic cylinder (34) and a telescopic shaft (341);
The front end of the front bending unit and the rear end of the rear bending unit are respectively provided with a supporting frame (31); the support frames (31) are provided with more than 2, are arranged symmetrically left and right, the conveying slide rails (32) are arranged on the support frames (31) and correspond to the support frames (31) one by one, the support frames (31) are arranged in groups, one group of the group of support frames (31) is fixed on the outer side of a bottom plate (20) of a front bending unit (2), the other group of support frames is fixed on the truss (30), and the two groups of support frames (31) are arranged in a staggered mode;
The conveying mechanism (33) comprises a conveying speed reducing motor (35), two parallel conveying belts (36), a front support (37), a rear support (38) and a driving wheel (39), wherein the two parallel conveying belts (36) are respectively arranged at the left side and the right side of the positioning support (25); the front end and the rear end of the front bracket (37) and the rear bracket (38) are respectively provided with a driving wheel (39), the driving wheels (39) are symmetrically arranged in groups along the left and right sides of each bracket, two parallel conveying belts (36) are sleeved on each group of driving wheels (39) in parallel and are connected end to end respectively, and one group of driving wheels (39) is connected with a conveying speed reducing motor (35);
The front end of the rear bracket (38) is fixed on the outer side of the bottom plate (20) of the rear bending unit (2), and the rear end of the rear bracket is fixed on the truss (30); a front lifting cylinder (371) and a rear lifting cylinder (372) are respectively arranged at the front end and the rear end of the front bracket (37), one end of the front lifting cylinder (371) is fixed on the truss (30), the other end of the front lifting cylinder is fixed on a cylinder support (374) at the front end of the front bracket (37), one end of the rear lifting cylinder (372) is fixed on a bottom plate (20) of the front bending unit (2) through a cylinder connecting plate (373), and the other end of the rear lifting cylinder is fixed on the cylinder support (374) at the rear end of the front bracket (37);
The front support (37) consists of a first support (375) and a second support (376) at the front end of the first support (375), a support (377) is arranged at the connecting end of the first support (375) and the second support (376), an extension area (378) is arranged at the end of the support (377) of the first support (375) or the second support (376), a slide way is arranged inside the extension area (378) and the lower part of the corresponding first support (375) or the second support (376), and the first support (375) or the second support (376) can be slidably arranged on the slide way of the other support;
The telescopic cylinder (34) is horizontally fixed between a bracket support (377) and a cylinder support (374) at the front end of the rear lifting cylinder (372), a telescopic shaft support (379) is arranged at the rear end of the bracket support (377), and the telescopic shaft support (379) is arranged on the telescopic cylinder (34) and can move forwards and backwards along with the telescopic cylinder (34); the telescopic shafts (341) are arranged in parallel, one ends of the telescopic shafts (341) are fixed on the telescopic shaft supporting pieces (379), and the other ends of the telescopic shafts penetrate through openings in the top ends of the cylinder supporting pieces (374) at the front ends of the rear lifting cylinders (372).
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| CN201910768783.0A CN110449491B (en) | 2019-08-20 | 2019-08-20 | Bending unit of sheet metal flanging machine and sheet metal flanging machine |
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| CN201910768783.0A CN110449491B (en) | 2019-08-20 | 2019-08-20 | Bending unit of sheet metal flanging machine and sheet metal flanging machine |
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| CN110449491B true CN110449491B (en) | 2024-05-03 |
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