CN114260342B - Continuous bending equipment for metal plates - Google Patents
Continuous bending equipment for metal plates Download PDFInfo
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- CN114260342B CN114260342B CN202111652345.1A CN202111652345A CN114260342B CN 114260342 B CN114260342 B CN 114260342B CN 202111652345 A CN202111652345 A CN 202111652345A CN 114260342 B CN114260342 B CN 114260342B
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- 238000005452 bending Methods 0.000 title claims abstract description 133
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 20
- 230000008093 supporting effect Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention is suitable for the field of bending devices, and provides a continuous metal plate bending device which comprises a workbench, a bending device and a bending device, wherein the workbench comprises a workpiece movable platform positioned in the middle and clamping piece movable platforms positioned at two sides of the workpiece movable platform; one end of the workpiece movable platform is provided with a hinge ring, and a rotating shaft is sleeved in the hinge ring in a rotating way; the lower end of the rotating shaft is slidably provided with a bending driving handle; a plate transmission mechanism is arranged on the upper end surface of the workpiece movable platform; the output direction of the plate transmission mechanism faces the center direction of the hinge ring; the conveyer belt driving wheel is connected with a rotation transmission assembly arranged in the workbench; the clamping seat is slidably arranged on the clamping piece moving platform; the clamping seat is driven by the clamping driving mechanism, so that the bending driving handle is driven to realize the bidirectional bending of the workpiece, and the plate transmission mechanism is driven to convey the workpiece by utilizing the return stroke of the bending driving handle, thereby reducing the working intensity of workers and improving the bending efficiency of the workpiece.
Description
Technical Field
The invention relates to the field of bending devices, in particular to a continuous bending device for a metal plate.
Background
A bending machine is a machine that is capable of bending a sheet.
Referring to fig. 23, the bending machine in the existing factory is a hydraulic bending machine, the bending machine has the advantages of complex structure, complex operation, high cost, large volume and inconvenient movement, the hydraulic machine is suitable for bending rigid plates with higher strength, but the hydraulic bending machine is large and small in use when processing aluminum plates or part of alloy plates with weaker strength (with certain plastic characteristics), and waste of equipment used resources is caused. And when the hydraulic bending machine is used for continuously reversing and bending, the workpiece is troublesome to reverse, and the hydraulic bending machine is not suitable for bending and processing the wavy workpiece.
In the manual-driven simple bending machine in the prior art, after one bending is finished in the continuous bending process, the workpiece is conveyed manually during the next bending, so that the whole bending efficiency is greatly reduced.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a continuous bending apparatus for metal sheet, which can realize bi-directional bending of a workpiece by driving a bending driving handle, and utilize a return stroke of the bending driving handle to drive a sheet transmission mechanism to convey the workpiece, so as to reduce the working strength of workers and improve the bending efficiency of the workpiece.
In order to achieve the above purpose, the invention provides a continuous bending device for metal plates, which comprises a workbench, a bending device and a bending device, wherein the workbench comprises a workpiece movable platform positioned in the middle and clamping piece movable platforms positioned at two sides of the workpiece movable platform; one end of the workpiece movable platform is provided with a hinge ring, and a rotating shaft is sleeved in the hinge ring in a rotating way; a bending driving handle is slidably arranged at the lower end of the rotating shaft; two plate clamping blocks for bending are fixedly connected to the bending driving handle; a plate transmission mechanism is arranged on the upper end surface of the workpiece movable platform; the output direction of the plate transmission mechanism faces the center direction of the hinge ring; the conveyer belt driving wheel is connected with a rotation conveying assembly arranged in the workbench, and the conveyer belt can be driven to drive by rotating the rotating shaft under the action of the rotation conveying assembly; the clamping seat is slidably arranged on the clamping piece moving platform; the clamping seat is driven by a clamping driving mechanism.
According to the continuous bending equipment for the metal plate, the plate transmission mechanism comprises two conveying belts which are symmetrically arranged; one end of each conveying belt is sleeved with a conveying belt driving wheel, and the other end of each conveying belt is sleeved with a conveying belt driven wheel.
According to the continuous sheet metal bending equipment, the rotary conveying assembly comprises two driven gears which are respectively and coaxially connected with two conveying belt driving wheels; a driving gear fixedly mounted on the rotating shaft; the switching piece is rotatably sleeved on the rotating shaft, a connecting gear is arranged at the other end of the switching piece, the connecting gear is meshed with the driving gear, and the connecting gear can be in switching engagement with the two driven gears through rotating the angle of the switching piece; a deflector rod is fixedly arranged at the lower end of the switching piece, an arc-shaped groove is formed in the lower end face of the workpiece movable platform of the workbench, and the deflector rod penetrates through the arc-shaped groove and extends to the outside of the workbench; the two ends of the switching piece are provided with supporting springs, and the other ends of the supporting springs are fixedly connected to the inner wall of the workbench.
According to the continuous bending equipment for the metal sheet, the clamping driving mechanism comprises the clamping driving handle capable of rotating up and down, and the output end of the clamping driving handle is coaxially and fixedly connected with a space cam with a hollow inside; the space cam is provided with a guide groove on the outer wall, and a disc-shaped moving block is sleeved in the space cam; the movable handle is fixedly connected with the movable block through a connecting rod, and the connecting rod is arranged in the guide groove; a triangle part fixedly connected to the end part of the movable handle; the sliding grooves are arranged at the bottoms of the two clamping seats, the shapes of the sliding grooves correspond to the shapes of the triangular parts, and the side edges of the triangular parts are provided with connecting convex edges; the connecting convex edge is embedded and installed in the sliding groove.
According to the continuous bending equipment for the metal plate, a through hole is formed in the end part of the bending driving handle, and the through hole is of a gear-shaped structure; the partial section of the rotating shaft is of a gear-shaped structure, and the rotating shaft is nested in the through hole and matched with the through hole.
According to the continuous bending equipment for the metal plates, the conveying belt is a rubber belt.
The invention provides continuous bending equipment for metal plates, which comprises a workbench, a bending device and a bending device, wherein the workbench comprises a workpiece movable platform positioned in the middle and clamping piece movable platforms positioned at two sides of the workpiece movable platform; one end of the workpiece movable platform is provided with a hinge ring, and a rotating shaft is sleeved in the hinge ring in a rotating way; the lower end of the rotating shaft is slidably provided with a bending driving handle, and bending of the workpiece is realized through the bending driving handle; two plate clamping blocks for bending are fixedly connected to the bending driving handle; a plate transmission mechanism is arranged on the upper end surface of the workpiece movable platform; the output direction of the plate transmission mechanism faces the center direction of the hinge ring; the conveying belt driving wheel is connected with a rotating conveying assembly arranged in the workbench, conveying of workpieces is achieved through the rotating conveying assembly, and the rotating shaft can drive the conveying belt to drive under the action of the rotating conveying assembly; the clamping seat is slidably arranged on the clamping piece moving platform; the clamping seat is driven by a clamping driving mechanism. The bending driving handle is driven to realize bidirectional bending of the workpiece, and the return stroke of the bending driving handle is utilized to drive the plate transmission mechanism to convey the workpiece, so that the working strength of workers is reduced, and the bending efficiency of the workpiece is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention; FIG. 2 is a schematic view of the plate drive mechanism of the present invention of FIG. 1; FIG. 3 is a schematic view of the conveying direction of the conveyor belt of FIG. 2; FIG. 4 is a schematic view of the structure of the rotor in FIG. 1; FIG. 5 is a schematic view of the structure of the bending drive handle in FIG. 1; FIG. 6 is a position diagram of the rotary transfer assembly; FIG. 7 is a top view of the rotary transfer assembly of FIG. 6; FIG. 8 is a bottom view of the rotary transfer assembly of FIG. 7; FIG. 9 is another state diagram of the rotary transfer assembly of FIG. 7; FIG. 10 is another state diagram of FIG. 9; FIG. 11 is a schematic illustration of the connection of the switch to the support spring; FIG. 12 is a bottom view of FIG. 1; FIG. 13 is another schematic structural view of the rotary transfer assembly; FIG. 14 is another angular schematic view of FIG. 13; FIG. 15 is a schematic view of the structure of FIG. 13; FIG. 16 is a construction operational view of FIG. 15; FIG. 17 is a mounting and internal block diagram of the reversing element of FIG. 13; fig. 18 is a top view of the internal structure of the commutator of fig. 17; FIG. 19 is a schematic view of the structure of the clamping drive mechanism; FIG. 20 is a block diagram of the inner moving block of the space cam of FIG. 19; FIG. 21 is an enlarged view of the attachment flange; FIG. 22 is a block diagram of the clamping seat of FIG. 1; FIG. 23 is a schematic view of the workpiece after bending; in the figure, 1-table, 11-work movable platform, 12-clamp moving platform, 13-hinge ring, 111-arc groove, 2-rotation shaft, 3-bending driving handle, 31-plate clamping block, 311-plate clamping slit, 4-clamping seat, 41-slide groove, 42-connection protrusion, 5-conveyor belt, 51-conveyor belt driving wheel, 52-conveyor belt driven wheel, 61-driving gear, 62-switching piece, 63-connection gear, 64-driven gear, 65-supporting spring, 66-deflector rod, 71-clamping driving handle, 72-space cam, 721-guiding groove, 73-moving handle, 74-triangle part, 741-connection convex edge, 75-moving block, 77-connecting rod, 81-piston cylinder, 811-through hole, 82-fluid storage box, 83-rotation motor, 84-reversing piece, 85-crank, 86-movable rod, 841-upper cover, 842-lower cover, 843-ratchet wheel, 844-pawl, 845-abrasion-resistant rubber layer.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present invention.
Referring to fig. 1, the present invention provides a continuous metal plate bending apparatus comprising:
The workbench 1 comprises a workpiece movable platform 11 positioned at the middle position and clamping piece movable platforms 12 positioned at two side positions;
The end part of the workpiece movable platform 11 is provided with a hinge ring 13, and a bending driving handle 3 is connected in a rotating way to the hinge ring 13;
Two plate clamping blocks 31 for clamping a workpiece are fixedly connected to the bending driving handle 3; a plate clamping slot 311 through which a workpiece passes is provided between the two plate clamping blocks 31 (the plate clamping blocks 31 and the plate clamping slots 311 are not the technical points of the present application, and are not described in detail).
Referring to fig. 2 and 3, a plate driving mechanism is disposed on the upper end surface of the workpiece movable platform 11; the plate transmission mechanism comprises two conveying belts 5 which are arranged in parallel, and the output direction of the two conveying belts 5 is the direction facing the center of the hinge ring 13; the inside of each conveyer belt 5 is sleeved with a conveyer belt driving wheel 51 and a conveyer belt driven wheel 52, on one hand, the two groups of conveyer belt driving wheels 51 or the two groups of conveyer belt driven wheels 52 have the effect of positioning the workpiece, so that the workpiece is kept in a vertical state (the vertical state of the workpiece is the processed state of the workpiece) in the conveying process; on the other hand, two conveyer belts 5 are driven to carry out transmission through two groups of belt wheels; under the transmission action of a rotating transmission assembly arranged in the workbench 1, the bending driving handle 3 can drive the conveying belt driving wheel 51 to drive the conveying belt 5 to drive in the output direction in the reset rotation process after the bending is finished, and the reset rotation process is a process of recovering to the middle position state (the state shown in fig. 1) after the bending driving handle 3 bends the workpiece leftwards or rightwards.
Referring to fig. 1, 4 and 5, it is preferable that a rotating shaft 2 is rotatably sleeved on the hinge ring 13, and the bending driving handle 3 is slidably sleeved at the lower end position of the rotating shaft 2; the lower extreme position department of axis of rotation 2 is equipped with the spline structure that can rotate the location, realizes turning to the location between axis of rotation 2 and the drive handle 3 of bending through this spline structure for axis of rotation 2 and the drive handle 3 of bending only can take place relative movement, can not take place relative rotation. Because the device utilizes the reset rotation process of the bending driving handle 3 to drive the conveyer belt 5 to drive, and because the device clamps a workpiece into the plate clamping gap 311 between the two plate clamping blocks 31 to provide the clamping effect during bending, the structure of the bending driving handle 3 which is arranged to slide up and down can be switched between the two states of clamping and canceling the clamping at any time, and the rotation of the rotating shaft 2 is not influenced.
In one example, the rotary transfer assembly includes:
Referring to fig. 6 and 7, two driven gears 64 coaxially connected to the two belt driving wheels 51, respectively;
referring to fig. 4, a driving gear 61 is provided at an upper position of the rotation shaft 2;
referring to fig. 7 and 8, a switching member 62 rotatably sleeved on the rotating shaft 2 is provided, a connecting gear 63 is mounted at the other end of the switching member 62, the connecting gear 63 is always meshed with the driving gear 61, the connecting gear 63 can be singly meshed with two driven gears 64, and when the angle of the switching member 62 changes, the connecting gear 63 can be meshed and switched with the two driven gears 64;
Referring to fig. 12, a deflector rod 66 is fixed at the lower end of the switching member 62, an arc-shaped slot 111 corresponding to the movement track of the deflector rod 66 is provided at the lower end surface of the workpiece movable platform 11, and the deflector rod 66 extends to the outside of the workbench 1 through the arc-shaped slot 111; the toggle member 62 is more conveniently actuated to change angle by the toggle lever 66.
Preferably, a predetermined distance is left between the two driven gears 64, two ends of the switching member 62 are provided with supporting springs 65, the other ends of the supporting springs 65 are fixedly connected to the inner wall of the workbench 1, and under no external force, the two supporting springs 65 support the switching member 62 in a centered state (as shown in fig. 7 and 11), and the switching member 62 in the centered state can make the connecting gear 63 not engage with the driven gears 64 on two sides. When the bending driving handle 3 bends a workpiece, the switching piece 62 is in a centering state, so that the bending driving handle 3 cannot drive the conveying belt 5 to convey the workpiece, the conveying distance of the conveying belt 5 can be controlled through the structure, and when a worker wants to convey the workpiece, the worker only needs to stir the deflector rod 66 to enable the driven gear 64 to be meshed with the corresponding connecting gear 63, so that the workpiece can be conveyed; when the workpiece conveying distance reaches the preset distance, the shifting of the shifting lever 66 is only required to be canceled, and the switching piece 62 is spring-back to the centering state under the action of the supporting spring 65, and in this state, the bending driving handle 3 cannot drive the conveying belt 5 to continue conveying even in the resetting and rotating process.
The rotary transmission assembly works;
when the bending driving handle 3 is in the bending process of the workpiece, the driving rod 66 is not stirred;
Under the supporting action of the supporting springs 65 positioned at the two sides, the switching piece 62 is in a centering state, the connecting gear 63 is not meshed with any one of the driven gears 64, the driving gear 61 cannot form transmission with the driven gears 64, the driving wheel 51 of the conveying belt has no driving force, and the conveying belt 5 does not work;
when the rotary transmission assembly is in transmission (the bending driving handle 3 is in a resetting and turning process);
Referring to fig. 3 and 9, when the bending driving handle 3 is in the process of resetting and turning after being bent to the right, the driving gear 61 rotates clockwise, the hand-held driving lever 66 drives the switching member 62 to rotate to the left, the connecting gear 63 is meshed with the left driven gear 64, the left driven gear 64 drives the conveyor belt driving wheel 51 connected with the connecting gear 64 to rotate, the left conveyor belt 5 conveys the workpiece (the right conveyor belt 5 has a driven effect and also follows the transmission), and the conveyor belt 5 conveys the workpiece to the direction of the hinge ring 13;
Referring to fig. 3 and 10, when the bending driving handle 3 is in the process of resetting and turning after bending to the left, the driving gear 61 rotates counterclockwise, the hand-held driving lever 66 drives the switching member 62 to rotate to the right, the connecting gear 63 is meshed with the driven gear 64 on the right, the driven gear 64 on the right drives the conveyor belt driving wheel 51 connected with the connecting gear 64 to rotate, the conveyor belt 5 on the right conveys the workpiece (the conveyor belt 5 on the left has a driven effect and also follows the transmission), and the conveyor belt 5 conveys the workpiece to the direction of the hinge ring 13.
The rotation transmission assembly can be in another structural form;
In another example, the rotary transfer assembly includes:
Referring to fig. 13, 14 and 15, a piston cylinder 81 is installed in the table 1, and two through holes 811 are provided at opposite corners of both sides of the piston cylinder 81; the piston cylinder 81 contains a fluid (the fluid may be a liquid such as hydraulic oil or a gas having a certain pressure) as a driving medium.
A fluid storage tank 82 fixedly installed at an upper end of the piston cylinder 81, and two rotary motors 83 (the rotary motors 83 are bidirectional quantitative motors), wherein two through holes 811 are respectively and correspondingly connected with connection ports of the two rotary motors 83 through pipelines (each rotary motor 83 is provided with two connection ports); the other connection port of the two rotation motors 83 is connected to the fluid storage tank 82;
A crank 85 fixedly installed at the upper end of the rotating shaft 2;
The end of the crank 85 is connected with the end of the driving rod of the piston cylinder 81 through a movable rod 86, and one end of the movable rod 86 is hinged with the end of the crank 85, and the other end is hinged with the end of the driving rod of the piston cylinder 81.
In the operation of the above-described structure, the initial state is as shown in fig. 13, and the crank 85 is a process of extending the driving rod of the piston cylinder 81, regardless of whether the bending driving rod 3 is in the left bending process or the right bending process.
On the contrary, no matter the bending driving handle 3 is in the process of resetting and turning after bending leftwards or rightwards, the corresponding process is that the driving rod of the crank 85 driving the piston cylinder 81 is contracted.
Referring to fig. 16, the fluid-driven rotary motor 83 rotates clockwise as the fluid flows from the piston cylinder 81 to the fluid storage tank 82; when the fluid flows from the fluid storage tank 82 to the piston cylinder 81, the fluid drives the rotary motor 83 to rotate counterclockwise (for example, the rotary motor 83 at the left end rotates clockwise while the driving rod of the piston cylinder 81 is in the contraction process, and the rotary motor 83 at the right side rotates counterclockwise and vice versa).
The output shafts of the two rotating motors 83 are provided with reversing pieces 84, the upper ends of the reversing pieces 84 are connected with the conveyor belt driving wheels 51, under the action of the reversing pieces 84, the rotating motors 83 can only drive the conveyor belt driving wheels 51 to rotate unidirectionally, and the rotating direction is the direction in which the conveyor belt driving wheels 51 drive the conveyor belt 5 to drive towards the output direction;
Referring to fig. 17 and 18, it is preferable that the reversing element 84 includes an upper cover 841 rotatably nested in the housing of the workbench 1 and a lower cover 842 rotatably installed in the upper cover 841, and a ratchet mechanism is disposed between the upper cover 841 and the lower cover 842, and the ratchet mechanism includes a ratchet 843 disposed on an upper end surface of the lower cover 842 and a pawl 844 installed at a center of the upper cover 841, and the pawl 844 is installed in cooperation with the ratchet 843; the cooperation of the pawl 844 and the ratchet 843 realizes that the rotating motor 83 can only drive the conveyor belt driving wheel 51 to rotate in one direction, so that the conveyor belt driving wheel 51 is prevented from being driven by the rotating motor 83 to drive the conveyor belt 5 to carry out reverse conveying.
In addition, a wear-resistant rubber layer 845 is disposed between the upper cover 841 and the housing of the workbench 1, and the wear-resistant rubber layer 845 is fixedly connected to the housing of the workbench 1, and when the rotation motor 83 is reversing, although the ratchet 843 and the pawl 844 are not in a clamping state, the rotation motor 83 may also drive the conveyor belt driving wheel 51 to reverse to a certain extent due to the influence of friction force between the ratchet 843 and the pawl 844, so that reverse conveying of the workpiece is brought about, and by providing the wear-resistant rubber layer 845, the friction force between the wear-resistant rubber layer 845 and the upper cover 841 is greater than the friction force between the ratchet 843 and the pawl 844, so that the reverse rotation of the rotation motor 83 cannot drive the conveyor belt driving wheel 51 to rotate.
Under the action of the ratchet mechanism, the crank 85 drives the driving rod of the piston cylinder 81 to extend (the bending driving handle 3 is in the bending process of the workpiece), and the rotating motor 83 cannot drive the conveyer belt driving wheel 51 to rotate; in the process of retracting the driving rod of the crank 85 driving the piston cylinder 81 (the bending driving handle 3 is in the process of resetting and turning), the rotating motor 83 on the left side drives the conveyor driving wheel 51 connected with the rotating motor 83 to rotate clockwise, and the rotating motor 83 on the right side drives the conveyor driving wheel 51 connected with the rotating motor to rotate anticlockwise.
In addition, the conveyer belt 5 is a rubber belt, and the friction force between the workpiece and the conveyer belt 5 is increased by selecting the rubber belt as the conveyer belt 5, so that slipping caused by insufficient friction force between the conveyer belt 5 and the workpiece is avoided, and the conveying of the workpiece is prevented from being influenced.
The clamping piece moving platform 12 is provided with two clamping seats 4 in a sliding manner, and the two clamping seats 4 are symmetrically arranged; the two clamping seats 4 are driven by a clamping driving mechanism to be switched between a clamping state and a clamping canceling state;
Referring to fig. 19, the clamping driving mechanism includes:
a clamping driving handle 71 capable of rotating up and down, wherein a space cam 72 with a cavity inside is coaxially and fixedly connected to the output end of the clamping driving handle 71;
Referring to fig. 20, the outer wall of the space cam 72 is provided with a guide groove 721, and a moving block 75 is sleeved inside the space cam 72;
Referring to fig. 19 and 21, the moving handle 73 has a link 77 at one side thereof, and the link 77 is connected to the moving block 75 in the space cam 72 through the guide groove 721; the up-and-down rotation effect of the clamp driving handle 71 is converted into the forward-and-backward movement effect of the moving handle 73 in the horizontal direction by the cooperation of the space cam 72 and the moving block 75; the output end of the movable handle 73 is provided with a triangular part 74, and the edge of the triangular part 74 is provided with a connecting convex edge 741;
Referring to fig. 22, the connecting protrusions 42 are provided at the bottoms of the two clamping bases 4, the ends of the connecting protrusions 42 are in triangular structures corresponding to the triangular portions 74, the side edges of the connecting protrusions 42 are provided with sliding grooves 41 matched with the connecting convex edges 741, and the connecting convex edges 741 are slidably mounted in the sliding grooves 41.
Clamping the workpiece;
The clamping driving handle 71 is pressed down, the clamping driving handle 71 drives the space cam 72 to rotate, when the space cam 72 rotates, the connecting rod 77 moves along the guide groove 721, the connecting rod 77 drives the moving handle 73 to move backwards, and the triangle part 74 moving backwards drives the clamping seats 4 on two sides to move towards the middle through the connecting convex edge 741, so that the clamping effect on a workpiece is achieved.
When the clamping of the workpiece is canceled;
The clamping driving handle 71 is lifted up, the clamping driving handle 71 drives the space cam 72 to rotate, when the space cam 72 rotates, the connecting rod 77 moves along the guide groove 721, the connecting rod 77 drives the moving handle 73 to move forward, and the triangle part 74 moving forward drives the clamping seat 4 at the middle position to move to two sides through the connecting convex edge 741, so that the cancellation of the clamping effect is realized.
When the clamping structure is used, the clamping driving handle 71 is lifted or pressed down to drive the clamping seat 4 to clamp and release the workpiece, and the clamping driving handle 71 adopts a lifting or pressing down driving mode, so that the clamping structure has the following advantages: the force application is easier, and the driving mode is more convenient and has higher matching degree with the bending part.
In this example, first, a workpiece to be bent is placed between two conveyor belts 5, and one end of the workpiece is placed between two plate clamping blocks 31;
during bending (in the example, bending leftwards and then bending rightwards is taken as an example for explanation);
Bending leftwards, namely firstly pressing down a clamping driving handle 71 to control two clamping seats 4 to clamp a workpiece, holding a bending driving handle 3 to rotate leftwards, and bending the workpiece while rotating the bending driving handle 3; after bending, the bending driving handle 3 slides downwards, a workpiece is separated from between the two plate clamping blocks 31, the clamping driving handle 71 is lifted upwards to drive the clamping seat 4 to cancel clamping of the workpiece, the bending driving handle 3 rotates rightwards to return to an initial state (a resetting and turning process), and the rotating and conveying assembly can drive the conveying belt 5 to convey the workpiece forwards for a preset distance;
The bending driving handle 3 slides upwards to an initial position, the workpiece is reinserted between the two plate clamping blocks 31, the clamping driving handle 71 is pressed downwards, and the clamping driving handle 71 drives the clamping seat 4 to clamp the workpiece; performing next bending;
bending rightwards, and controlling the bending driving handle 3to rotate rightwards, wherein the bending driving handle 3 bends a workpiece while rotating; after bending, the bending driving handle 3 slides downwards, the workpiece is separated from between the two plate clamping blocks 31, the clamping driving handle 71 is lifted upwards to drive the clamping seat 4 to cancel clamping of the workpiece, the bending driving handle 3 rotates leftwards to return to an initial state (a resetting and turning process), and the rotating and conveying assembly can drive the conveying belt 5to convey the workpiece forwards for a preset distance;
The bending driving handle 3 slides upwards to an initial position, the workpiece is located between the two plate clamping blocks 31 again, the clamping driving handle 71 is pressed downwards, and the clamping driving handle 71 drives the clamping seat 4 to clamp the workpiece.
In summary, the invention provides a continuous bending device for metal plates, comprising a workbench, a bending device and a bending device, wherein the workbench comprises a workpiece movable platform positioned in the middle and clamping piece movable platforms positioned on two sides of the workpiece movable platform; one end of the workpiece movable platform is provided with a hinge ring, and a rotating shaft is sleeved in the hinge ring in a rotating way; the lower end of the rotating shaft is slidably provided with a bending driving handle, and bending of the workpiece is realized through the bending driving handle; two plate clamping blocks for bending are fixedly connected to the bending driving handle; a plate transmission mechanism is arranged on the upper end surface of the workpiece movable platform; the output direction of the plate transmission mechanism faces the center direction of the hinge ring; the conveying belt driving wheel is connected with a rotating conveying assembly arranged in the workbench, conveying of workpieces is achieved through the rotating conveying assembly, and the rotating shaft can drive the conveying belt to drive under the action of the rotating conveying assembly; the clamping seat is slidably arranged on the clamping piece moving platform; the clamping seat is driven by a clamping driving mechanism. The bending driving handle is driven to realize bidirectional bending of the workpiece, and the return stroke of the bending driving handle is utilized to drive the plate transmission mechanism to convey the workpiece, so that the working strength of workers is reduced, and the bending efficiency of the workpiece is improved.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A continuous bending apparatus for sheet metal, comprising:
The workbench comprises a workpiece movable platform positioned in the middle part and clamping piece movable platforms positioned at two sides;
The end part of the workpiece movable platform is provided with a hinge ring, and a bending driving handle capable of clamping the workpiece is rotationally connected in the hinge ring;
A plate transmission mechanism is arranged on the upper end surface of the workpiece movable platform; the plate transmission mechanism comprises two conveying belts which are arranged in parallel, and the output directions of the two conveying belts are directions towards the center of the hinge ring; a conveying belt driving wheel and a conveying belt driven wheel are sleeved in each conveying belt;
under the transmission action of a rotary transmission assembly arranged in the workbench, the bending driving handle can drive the conveying belt to convey in the resetting and rotating process after bending is finished;
the clamping piece moving platform is provided with two clamping seats in a sliding manner; the two clamping seats are symmetrically arranged, the two clamping seats are driven by the clamping driving mechanism to be switched between a clamping state and a clamping canceling state, the clamping state is that the two clamping seats move from two sides to the center, and the clamping canceling state is that the two clamping seats move from the center to two sides;
Two plate clamping blocks for clamping a workpiece are fixedly connected to the bending driving handle; a plate clamping slot for a workpiece to pass through is formed between the two plate clamping blocks; a rotating shaft is sleeved in the hinge ring in a rotating way, and the bending driving handle is sleeved at the lower end of the rotating shaft in a sliding way; a spline structure capable of rotating and positioning is arranged at the lower end of the rotating shaft;
The rotary transfer assembly includes:
two driven gears respectively coaxially connected with the two conveyor belt driving wheels;
the driving gear is arranged at the upper part of the rotating shaft;
The switching piece is sleeved on the rotating shaft in a rotating way, a connecting gear is arranged at the other end of the switching piece, the connecting gear is always meshed with the driving gear, the connecting gear can be singly meshed with the two driven gears, and when the angle of the switching piece changes, the connecting gear can be meshed with the two driven gears for switching;
a deflector rod is fixedly arranged at the lower end of the switching piece, an arc-shaped groove corresponding to the movement track of the deflector rod is arranged at the lower end surface of the workpiece movable platform, and the deflector rod penetrates through the arc-shaped groove and extends to the outside of the workbench;
the two driven gears are spaced by a preset distance, supporting springs are arranged at two ends of the switching piece, the other ends of the supporting springs are fixedly connected to the inner wall of the workbench, and the two supporting springs support the switching piece to be in a centering state under the action of no external force.
2. The continuous sheet metal bending apparatus of claim 1, wherein the rotary transfer assembly comprises:
the piston cylinder is arranged in the workbench, and two through holes are formed in the opposite corners of the two sides of the piston cylinder; the piston cylinder is filled with fluid serving as a driving medium;
The fluid storage box is fixed at the upper end of the piston cylinder, and the two rotary motors adopt bidirectional quantitative motors; the other connecting port of the two rotating motors is connected with the fluid storage box;
the crank is fixedly arranged at the upper end of the rotating shaft;
The end part of the crank is connected with the end part of the driving rod of the piston cylinder through a movable rod, one end of the movable rod is hinged to the end part of the crank, and the other end of the movable rod is hinged to the end part of the driving rod of the piston cylinder;
The output shafts of the two rotating motors are provided with reversing pieces, the upper ends of the reversing pieces are connected with conveying belt driving wheels, under the action of the reversing pieces, the rotating motors can only drive the conveying belt driving wheels to rotate unidirectionally, and the rotating direction is the direction in which the conveying belt driving wheels drive the conveying belt to face the output direction.
3. The continuous sheet metal bending apparatus according to claim 2, wherein the fluid-driven rotary motor rotates clockwise as the fluid flows from the piston cylinder to the fluid storage tank;
the fluid drives the rotary motor to rotate counterclockwise as the fluid flows from the fluid storage tank to the piston cylinder.
4. The continuous sheet metal bending device according to claim 3, wherein the reversing piece comprises an upper cover rotationally nested in a shell of the workbench and a lower cover rotationally installed in the upper cover, a ratchet mechanism is arranged between the upper cover and the lower cover, the ratchet mechanism comprises a ratchet wheel arranged on the upper end face of the lower cover and a pawl installed in the center of the upper cover, and the pawl is installed in a matched mode with the ratchet wheel.
5. The continuous bending apparatus according to claim 4, wherein a wear-resistant rubber layer is provided between the upper cover and the housing of the table, and the wear-resistant rubber layer is fixedly connected to the housing of the table.
6. The continuous sheet metal bending apparatus of claim 1, wherein the clamping drive mechanism comprises:
The output end of the clamping driving handle is coaxially and fixedly connected with a space cam with a cavity inside;
the space cam is provided with a guide groove on the outer wall, and a moving block is sleeved in the space cam;
A connecting rod is arranged on one side of the moving handle, and penetrates through the guide groove to be connected with a moving block positioned in the space cam; the output end of the movable handle is provided with a triangular part, and the edge of the triangular part is provided with a connecting convex edge;
the connecting protrusions are arranged at the bottoms of the two clamping seats, the end parts of the connecting protrusions are triangular structures corresponding to the triangular parts, sliding grooves matched with the connecting convex edges are arranged on the side edges of the connecting protrusions, and the connecting convex edges are slidably arranged in the sliding grooves.
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| CN116851511A (en) * | 2023-09-01 | 2023-10-10 | 四川巨星铭创科技集团有限公司 | Aluminum plate bending device with quick limit structure |
| CN117415197B (en) * | 2023-12-18 | 2024-02-09 | 包头江馨微电机科技有限公司 | Voice coil motor shell bending device and system |
| CN117983704B (en) * | 2024-04-07 | 2024-05-31 | 江苏恒久机械股份有限公司 | Metal pipe bending device |
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| CN111250571A (en) * | 2020-01-15 | 2020-06-09 | 浙江强伟五金有限公司 | High-efficient curtain rod bender |
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| JPH0790274B2 (en) * | 1992-05-29 | 1995-10-04 | 株式会社橘製作所 | Bending device |
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