CN211489149U

CN211489149U - Automatic bending device

Info

Publication number: CN211489149U
Application number: CN201922126672.8U
Authority: CN
Inventors: 徐浚木; 王必海
Original assignee: Huizhou Junpeng Technology Co ltd
Current assignee: Huizhou Junpeng Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-15
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to an automatic bending device, which comprises a bending mechanism, a bending mechanism and a bending mechanism, wherein the bending mechanism comprises a bending rack, a first driving piece, a bending tool bit, a bending base, an arc-shaped slideway, an arc-shaped supporting arm and a supporting arm driving piece, the first driving piece is arranged on the bending rack, the bending tool bit is linked with the first driving piece, the bending base is opposite to the bending tool bit, the arc-shaped slideway is arranged on the bending rack, the arc-shaped supporting arm is arranged in the arc-shaped slideway in a sliding way and supports a workpiece, the arc-shaped supporting arm is provided with a rack, and the supporting arm driving; the feeding mechanism can convey the workpiece to the bending base; and the material pulling mechanism comprises a material pulling driving piece, a material pulling arm and a material pulling baffle, the material pulling driving piece drives the material pulling arm and the material pulling baffle to move close to or away from the bending base and move close to or away from the workpiece, and the material pulling arm stretches and retracts relative to the material pulling driving piece and can be opposite to or staggered with the material pulling baffle in a rotating manner. The automatic bending device can be used for conveniently, stably and accurately bending workpieces.

Description

Automatic bending device

Technical Field

The utility model relates to a technical field of sheet metal component processing especially relates to automatic bending device.

Background

At present, when the sheet metal part is bent, the position of the sheet metal part to be bent is generally directly punched through a bending machine, and the two ends of the sheet metal part can be bent respectively under the common condition. When bending one end of the sheet metal part, the other end of the sheet metal part can be tilted to cause the position deviation of stamping, so that the bending effect of the sheet metal part is influenced. When the other end of the sheet metal part needs to be bent, the sheet metal part needs to be positioned manually, and the operation efficiency is low.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an automatic bending device of sheet metal component that can make things convenient for, stable, accurate to the problem that the bender is not good to the sheet metal component effect of bending to and inconvenient operation.

An automatic bending device, comprising:

the bending mechanism can bend a workpiece, the bending mechanism comprises a bending rack, a first driving piece, a bending tool bit, a bending base, an arc-shaped slideway, an arc-shaped supporting arm and a supporting arm driving piece, the bending rack comprises a first side and a second side which are opposite, the first driving piece is arranged on the bending rack, the bending tool bit is linked with the driving end of the first driving piece, the bending base and the bending tool bit are oppositely arranged on the bending rack, the first driving piece drives the bending tool bit to move towards the bending base, so that the bending tool bit is matched with the bending base to bend the workpiece, the arc-shaped slideway is arranged on the bending rack and is close to the bending base, the arc-shaped supporting arm can be arranged in the arc-shaped slideway in a sliding manner along an arc-shaped track, and the arc-shaped supporting arm can slide towards the direction of the bending tool bit and support the workpiece, a rack is arranged on the arc-shaped supporting arm in an extending mode along the length direction, the supporting arm driving piece can be rotatably arranged on the bending machine frame, a tooth form meshed with the rack is arranged on the supporting arm driving piece, and the supporting arm driving piece rotates to enable the arc-shaped supporting arm to be close to or far away from the bending tool bit to slide;

the feeding mechanism is arranged on the first side of the bending rack and can convey the workpiece to the bending base for bending, the conveying direction of the workpiece is set to be transverse, and the conveying direction of the workpiece is set to be longitudinal; and

the material pulling mechanism is arranged on the second side of the bending rack and can pull out the bent workpiece from the bending mechanism, the material pulling mechanism comprises a material pulling driving piece, a material pulling arm and a material pulling baffle, the material pulling arm and the material pulling baffle are both arranged on a driving end of the material pulling driving piece, the material pulling driving piece can drive the material pulling arm and the material pulling baffle to move close to or away from the bending base along the transverse direction, the material pulling driving piece can drive the material pulling arm and the material pulling baffle to move close to or away from the workpiece along the longitudinal direction, the material pulling arm can stretch relative to the material pulling driving piece, the material pulling arm can rotatably correspond to or dislocate with the material pulling baffle, when the material pulling arm is opposite to the material pulling baffle, the workpiece can be clamped by the material pulling arm retracting along the transverse direction and matching with the material pulling baffle, when the material pulling arm and the material pulling baffle are staggered, the material pulling driving piece can drive the material pulling baffle to push the workpiece back to the bending base to be bent at other positions.

The automatic bending device can convey the workpiece to the bending mechanism through the feeding mechanism to be bent, and the bent workpiece can be pulled out through the pulling mechanism. When a workpiece is bent, the arc-shaped supporting arm can stably slide in the arc-shaped slideway along an arc-shaped track, and the arc-shaped supporting arm can support the workpiece after sliding close to the bending tool bit. Under the normal condition, one end of a workpiece can be bent twice, after one end of the workpiece is bent, the material pulling arm and the material pulling baffle can be matched to pull out one part of the workpiece from the bending mechanism, so that the other end of the workpiece is positioned at the bending base, the workpiece is bent for the first time, after the first bending is completed, the material pulling arm and the material pulling baffle are staggered, the workpiece is pushed into the bending mechanism through the material pulling baffle, the workpiece is bent for the second time, after all bending operations on the workpiece are completed, the material pulling arm is matched with the material pulling baffle again to pull out the whole workpiece from the bending mechanism, the bending operations of multiple procedures on the workpiece are more convenient, and after the workpiece is bent, the material pulling mechanism can directly pull out the workpiece to a finished product storage area.

In one embodiment, the material pulling driving part comprises a first air cylinder and a second air cylinder, the driving end of the first air cylinder extends along the transverse direction, the second air cylinder is linked with the driving end of the first air cylinder, the driving end of the second air cylinder extends along the longitudinal direction, and the material pulling arm and the material pulling baffle are linked with the driving end of the second air cylinder.

In one embodiment, the material pulling mechanism further comprises a third air cylinder and a material pulling connecting rod, a driving end of the third air cylinder extends along the transverse direction, the third air cylinder is linked with a driving end of the second air cylinder, one end of the material pulling connecting rod is linked with the driving end of the third air cylinder, the other end of the material pulling connecting rod is fixedly connected with the material pulling arm, the third air cylinder can drive the material pulling connecting rod to rotate and drive the material pulling connecting rod to move close to or away from the bending base, and when the material pulling connecting rod moves close to the bending base, the material pulling arm is driven to rotate, so that the material pulling arm and the material pulling baffle are staggered; when the material pulling connecting rod moves away from the bending base, the material pulling arm can be driven to rotate, so that the material pulling arm is opposite to the material pulling baffle and is matched with the material pulling baffle to clamp the workpiece.

In one embodiment, the arc-shaped bracket comprises a first arc surface and a second arc surface which are opposite to each other, the arc radius of the first arc surface is smaller than that of the second arc surface, and the rack is arranged on the first arc surface and/or the second arc surface along the length direction of the arc-shaped bracket.

In one embodiment, the bracket arm driving part comprises a first motor and a first rotating gear, the first motor is arranged on the bending machine frame, the first rotating gear is linked with the output end of the first motor, the first rotating gear is meshed with the rack, and the first motor drives the first rotating gear to rotate so that the arc-shaped bracket arm is close to or far from the bending tool bit to slide.

In one embodiment, the two arc-shaped supporting arms and the two arc-shaped sliding ways are arranged on the same side of the bending rack at intervals, the two arc-shaped supporting arms are correspondingly and slidably arranged in the two arc-shaped sliding ways, the supporting arm driving part further comprises a supporting arm linkage rod and a second rotating gear, the supporting arm linkage rod is linked with the output shaft of the first motor, the first rotating gear and the second rotating gear are respectively and fixedly arranged at two opposite ends of the supporting arm linkage rod, the first rotating gear is meshed with a rack on one arc-shaped supporting arm, and the second rotating gear is meshed with a rack on the other arc-shaped supporting arm.

In one embodiment, the arc-shaped slideway comprises a first plate body and a second plate body, the first plate body and the second plate body are arranged on the bending machine frame at intervals, an arc-shaped groove is formed between the first plate body and the second plate body, and the arc-shaped supporting arm is arranged in the arc-shaped groove in a sliding manner.

In one embodiment, the bending mechanism further includes a supporting plate and a limiting member, the supporting plate can bear a workpiece, the arc-shaped supporting arm includes a first end and a second end which are opposite to each other, the first end of the arc-shaped supporting arm is fixedly connected to the supporting plate, the limiting member is disposed at the second end of the arc-shaped supporting arm, the arc-shaped supporting arm can be close to the bending tool bit to slide to jack up the supporting plate, and is abutted against the arc-shaped slideway for limiting through the limiting member, or the arc-shaped supporting arm can be far away from the bending tool bit to slide to put down the supporting plate.

In one embodiment, the bending mechanism further comprises a bending conveying member, the bending conveying member is arranged on the bending rack and is in butt joint with the bending base, and the bending conveying member can convey the workpiece which is punched by the bending tool bit to the material pulling mechanism.

In one embodiment, two first driving parts, two bending tool bits and two bending bases are arranged, the arc-shaped slideway, the arc-shaped supporting arm and the supporting arm driving piece are respectively provided with at least two, the two first driving pieces are respectively arranged on the first side and the second side of the bending machine frame, the two bending bases are respectively arranged on the first side and the second side of the bending machine frame, the bending conveying piece is located between the two bending bases, the two bending tool bits and the two bending bases are arranged in a one-to-one correspondence mode, the two bending tool bits correspond to the two first driving pieces in a linkage mode respectively, the two arc-shaped slideways correspond to the bases on the first side and the second side of the bending rack respectively, the two arc-shaped supporting arms are correspondingly and slidably arranged in the two arc-shaped slideways, and the tooth shapes on the two supporting arm driving pieces correspond to the tooth racks on the two arc-shaped supporting arms respectively.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the automatic bending device of the present invention;

fig. 2 is a schematic structural view of a second embodiment of the automatic bending device of the present invention;

fig. 3 is a schematic structural view of a third embodiment of the automatic bending device of the present invention;

FIG. 4 is a schematic view of a portion of the automatic bending apparatus shown in FIG. 3 at A;

FIG. 5 is a schematic structural diagram of an embodiment of a material pulling mechanism in the automatic bending apparatus shown in FIG. 1;

fig. 6 is a schematic partial structure diagram of a portion B of the material pulling mechanism shown in fig. 5.

In the drawings, the components represented by the respective reference numerals are listed below:

10. a feeding mechanism; 11. a feeding frame; 12. a feeding driving block; 13. a feeding driving cylinder; 20. a bending mechanism; 21. bending the frame; 211. a first side; 212. a second side; 22. a first driving member; 23. bending the cutter head; 24. bending the base; 25. an arc-shaped slideway; 251. a first plate body; 252. a second plate body; 26. an arc-shaped bracket arm; 261. a rack; 27. a trailing arm drive; 271. a first rotating gear; 272. a trailing arm linkage rod; 28. bending the conveying piece; 29. a support plate; 30. a material pulling mechanism; 31. pulling the material bracket; 32. a material pulling arm; 33. a material pulling baffle plate; 34. a first cylinder; 35. a second cylinder; 36. a third cylinder; 37. pulling the material connecting rod; 38. a material pulling driving member; 40. and (5) a workpiece.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1 and 2, in an embodiment, an automatic bending apparatus includes: a feeding mechanism 10, a bending mechanism 20 and a pulling mechanism 30. The feeding mechanism 10 can convey the workpiece 40 to the bending position of the bending mechanism 20, the bending mechanism 20 can bend the workpiece 40, and the pulling mechanism 30 can pull out the bent workpiece 40 from the bending mechanism 20. The direction in which the work 40 is conveyed is set to the lateral direction, and the direction perpendicular to the direction in which the work 40 is conveyed is set to the longitudinal direction. The workpiece 40 may be a sheet metal part.

Referring to fig. 2 and 3, in one embodiment, the bending mechanism 20 includes a bending frame 21, a first driving member 22, a bending tool bit 23, a bending base 24, an arc-shaped slideway 25, an arc-shaped bracket 26 and a bracket driving member 27. Bending frame 21 includes opposing first and

second sides

211 and 212. The first driving member 22 is disposed on the bending frame 21, and the first driving member 22 may be an air cylinder or a hydraulic cylinder. The bending bit 23 is linked with the driving end of the first driving member 22. The bending base 24 and the bending tool bit 23 are oppositely arranged on the bending machine frame 21, and the first driving piece 22 drives the bending tool bit 23 to move towards the bending base 24, so that the bending tool bit 23 and the bending base 24 are matched to bend the workpiece 40. The arc-shaped slide way 25 is arranged on the bending machine frame 21 and is close to the bending base 24. The arc bracket arm 26 is slidably disposed in the arc chute 25 along an arc track, and the arc bracket arm 26 is capable of sliding toward the bending tool bit 23 and supporting the workpiece 40. The arc bracket arm 26 is provided with a rack 261 extending along the length direction. The bracket arm driving member 27 is rotatably provided on the bending machine frame 21, a tooth shape engaged with the rack 261 is provided on the bracket arm driving member 27, and the bracket arm driving member 27 rotates to make the arc-shaped bracket arm 26 slide close to or away from the bending tool bit 23.

Referring to fig. 4, in an embodiment, the arc bracket 26 includes a first arc surface and a second arc surface opposite to each other, and an arc radius of the first arc surface is smaller than an arc radius of the second arc surface. The first arc surface is provided with a rack 261 along the length direction of the arc-shaped supporting arm 26, or the second arc surface is provided with a rack 261 along the length direction of the arc-shaped supporting arm 26, or both the first arc surface and the second arc surface are provided with a rack 261 along the length direction of the arc-shaped supporting arm 26. The arc-shaped supporting arm 26 can stably support the workpiece 40 along the arc-shaped track in a sliding manner, and when the arc-shaped supporting arm 26 is driven by the supporting arm driving part 27, the arc-shaped supporting arm slides more smoothly in the arc-shaped slideway 25.

Referring to fig. 2 and 4, in an embodiment, the bracket arm driving member 27 includes a first motor and a first rotation gear 271. The first motor is arranged on the bending machine frame 21, the first rotating gear 271 is linked with the output end of the first motor, the first rotating gear 271 is meshed with the rack 261, and the first motor drives the first rotating gear 271 to rotate so that the arc-shaped supporting arm 26 is close to or far away from the bending tool bit 23 to slide. Further, in order to form a more stable support for the workpiece 40, the two arc-shaped support arms 26 and the two arc-shaped slide ways 25 are both provided, the two arc-shaped slide ways 25 are arranged at the first side 211 of the bending machine frame 21 at intervals, and the two arc-shaped support arms 26 are correspondingly arranged in the two arc-shaped slide ways 25 in a sliding manner. The arm linkage 272 and the second rotation gear are further included in the arm driving member 27. The bracket arm linkage 272 is linked with an output shaft of the first motor, the first rotating gear 271 and the second rotating gear are respectively and fixedly arranged at two opposite ends of the bracket arm linkage 272, the first rotating gear 271 is meshed with the rack 261 on one arc-shaped bracket arm 26, and the second rotating gear is meshed with the rack 261 on the other arc-shaped bracket arm 26. It can be understood that the bracket arm linkage 272 can be driven by a motor and a belt, specifically, a driving gear is disposed on the output end of the motor, a driven gear is disposed on the bracket arm linkage 272, and two opposite ends of the belt are respectively sleeved on the driving gear and the driven gear.

Referring to fig. 2 and 3, considering that both ends of the general workpiece 40 need to be bent, two sets of structures for driving the two arc-shaped brackets 26 to slide by the bracket driving member 27 may be provided, respectively on the first side 211 and the second side 212 of the bending frame 21. The bending mechanism 20 further comprises a bending conveying member 28, the bending conveying member 28 is arranged on the bending machine frame 21, the bending conveying member 28 is in butt joint with the bending base 24, and the bending conveying member 28 can convey the workpiece 40 which is punched by the bending tool bit 23 to the material pulling mechanism 30. Namely, four arc-shaped supporting arms 26 and four arc-shaped slideways 25 are arranged, and every two arc-shaped supporting arms are a set; two first motors, two bracket arm linkage rods 272, two first rotating gears 271 and two second rotating gears are arranged; correspondingly, the number of the first driving parts 22, the number of the bending tool bits 23 and the number of the bending bases 24 are also two, the two first driving parts 22 are respectively arranged on the first side 211 and the second side 212 of the bending frame 21, the two bending bases 24 are respectively arranged on the first side 211 and the second side 212 of the bending frame 21, the bending conveying part 28 is located between the two bending bases 24, the two bending tool bits 23 and the two bending bases 24 are arranged in a one-to-one correspondence manner, the two bending tool bits 23 are respectively correspondingly linked with the two first driving parts 22, the two arc-shaped slideways 25 are respectively correspondingly close to the bending bases 24 on the first side 211 and the second side 212 of the bending frame 21, and the two arc-shaped supporting arms 26 are correspondingly and slidably arranged in the two arc-. Specifically, the bending conveyor 28 may be a conveyor belt structure, i.e., a motor drives the gear to rotate, and the gear drives the conveyor belt to rotate, so as to convey the workpiece 40 by the conveyor belt.

Of course, only two arc-shaped slideways 25, two arc-shaped support arms 26 and two support arm driving parts 27 can be arranged, and one set of supporting structure comprises one arc-shaped slideway 25, one arc-shaped support arm 26 and one support arm driving part 27. When the first end of the workpiece 40 is bent, the second end of the workpiece 40 is supported by one set of supporting structure, after the first end of the workpiece 40 is bent, and when the second end of the workpiece 40 is bent, the first end of the workpiece 40 is supported by the other set of supporting structure, so that the better bending effect of the workpiece 40 can be ensured, and the operation is more stable.

Referring to fig. 1, it can be understood that the bending mechanism 20 further includes a supporting plate 29 and a limiting member. The supporting plate 29 can bear the workpiece 40, the arc-shaped supporting arm 26 comprises a first end and a second end which are opposite to each other, the first end of the arc-shaped supporting arm 26 is fixedly connected with the supporting plate 29, and the limiting part is arranged at the second end of the arc-shaped supporting arm 26. The arc-shaped supporting arm 26 can slide close to the bending tool bit 23 to jack up the supporting plate 29 and is abutted and limited with the arc-shaped slide way 25 through a limiting part, or the arc-shaped supporting arm 26 can slide away from the bending tool bit 23 to put down the supporting plate 29.

Referring to fig. 4, in an embodiment, the arc-shaped sliding way 25 includes a first plate 251 and a second plate 252. The first plate 251 and the second plate 252 are disposed on the bending frame 21 at intervals, an arc groove is formed between the first plate 251 and the second plate 252, and the arc bracket 26 is slidably disposed in the arc groove, so that the arc bracket 26 can slide more smoothly in the arc slideway 25.

Referring to fig. 3 and 4, in a specific embodiment, the feeding mechanism 10 may include a feeding frame 11, a feeding driving block 12, and a feeding driving cylinder 13, the feeding frame 11 is abutted to the first side 211 of the bending frame 21, the feeding driving block 12 is disposed on the feeding frame 11 in a transverse sliding manner, the feeding driving cylinder 13 is disposed on the feeding frame 11, a driving end of the feeding driving cylinder 13 is linked with the feeding driving block 12, and the feeding driving cylinder 13 can drive the feeding driving block 12 to push the workpiece 40 to the bending base 24 in a transverse sliding manner on the feeding frame 11 for bending. It can be understood that the feeding mechanism 10 may also be a matching structure of a motor, a gear, a chain and a pushing block, the gear is driven by the motor to rotate and drive the chain to operate, the pushing block is arranged on the chain, and the chain drives the pushing block to push the workpiece 40 to the bending base 24 for bending.

Referring to fig. 5, in an embodiment, the pulling mechanism 30 includes a pulling bracket 31, a pulling driving member 38, a pulling arm 32, and a pulling baffle 33. The pulling bracket 31 is disposed on the second side 212 of the bending frame 21. The pulling driving member 38 is disposed on the pulling support 31. The material pulling arm 32 and the material pulling baffle 33 are both arranged at the driving end of the material pulling driving piece 38, the material pulling driving piece 38 can drive the material pulling arm 32 and the material pulling baffle 33 to move close to or far away from the bending base 24 along the transverse direction, and the material pulling driving piece 38 can drive the material pulling arm 32 and the material pulling baffle 33 to move close to or far away from the workpiece 40 along the longitudinal direction. The pulling arm 32 can be extended and retracted relative to the pulling drive 38, and the pulling arm 32 can be rotationally opposite to or offset from the pulling stop 33. When the material pulling arm 32 is opposite to the material pulling baffle 33, the workpiece 40 can be clamped by the material pulling arm 32 retracting along the transverse direction and matching with the material pulling baffle 33; when the material pulling arm 32 and the material pulling baffle 33 are dislocated, the material pulling driving piece 38 can drive the material pulling baffle 33 to push the workpiece 40 back to the bending base 24 to be bent at other positions.

Referring to fig. 6, in one embodiment, the material pulling driving member 38 includes a first cylinder 34 and a second cylinder 35. The driving end of the first air cylinder 34 extends along the transverse direction, the second air cylinder 35 is linked with the driving end of the first air cylinder 34, the driving end of the second air cylinder 35 extends along the longitudinal direction, and the material pulling arm 32 and the material pulling baffle 33 are linked with the driving end of the second air cylinder 35. The pulling arm 32 can extend and contract and rotate relative to the second cylinder 35.

Referring to fig. 6, on the basis of the above embodiment, the pulling mechanism 30 further includes a third cylinder 36 and a pulling connecting rod 37. The driving end of the third cylinder 36 extends in the lateral direction, and the third cylinder 36 is linked with the driving end of the second cylinder 35. One end of the material pulling connecting rod 37 is linked with the driving end of the third air cylinder 36, the other end of the material pulling connecting rod 37 is fixedly connected with the material pulling arm 32, and the third air cylinder 36 can drive the material pulling connecting rod 37 to rotate and drive the material pulling connecting rod 37 to move close to or far away from the bending base 24. When the pulling connecting rod 37 moves close to the bending base 24, the pulling arm 32 is driven to rotate reversely by 90 degrees, so that the pulling arm 32 and the pulling baffle 33 are staggered; when the material pulling connecting rod 37 moves away from the bending base 24, the material pulling arm 32 is driven to rotate forward by 90 degrees, so that the material pulling arm 32 is opposite to the material pulling baffle 33 and is matched with and clamps the workpiece 40.

The automatic bending device can send the workpiece 40 to the bending mechanism 20 through the feeding mechanism 10 for bending, and the bent workpiece 40 can be pulled out through the pulling mechanism 30. When the workpiece 40 is bent, the arc-shaped supporting arm 26 can stably slide in the arc-shaped slide way 25 along an arc-shaped track, and the arc-shaped supporting arm 26 can support the workpiece 40 after sliding close to the bending tool bit 23, and the bending can generate a downward driving force, so that the upward supporting force of the arc-shaped supporting arm 26 can form a stable auxiliary force for the workpiece 40, and the situation that the other end of the workpiece 40 tilts when being bent is prevented, and the bending position deviates due to the fact that the other end of the workpiece does not stably support the workpiece 40. Normally, one end of the workpiece 40 is bent twice, after one end of the workpiece 40 is bent, the pulling arm 32 and the pulling baffle 33 can be matched to clamp and pull out a part of the workpiece 40 from the bending mechanism 20, so that the other end of the workpiece 40 is positioned at the bending base 24, the first bending is carried out, after the first bending is finished, the third air cylinder 36 drives the pulling connecting rod 37 to move close to the bending base 24 and drives the pulling arm 32 to rotate in the reverse direction by 90 degrees, the pulling arm 32 and the pulling baffle 33 are staggered, the first air cylinder 34 drives the pulling baffle 33 to push the workpiece 40 into the bending mechanism 20 and bend the workpiece 40 for the second time, after all bending operations on the workpiece 40 are finished, the third air cylinder 36 drives the pulling connecting rod 37 to move away from the bending base 24 and drives the pulling arm 32 to rotate in the forward direction by 90 degrees, so that the pulling arm 32 is matched with the pulling baffle 33 again to pull out the whole workpiece 40 from the bending mechanism 20, the bending operation of the workpiece 40 in multiple processes is more convenient, and after the workpiece 40 is bent, the pulling mechanism 30 can directly pull the workpiece 40 out to the finished product storage area.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An automatic bending device, characterized by, includes:

2. The automatic bending device according to claim 1, wherein the material pulling driving member includes a first cylinder and a second cylinder, a driving end of the first cylinder extends along the transverse direction, the second cylinder is linked with the driving end of the first cylinder, a driving end of the second cylinder extends along the longitudinal direction, and the material pulling arm and the material pulling baffle are linked with the driving end of the second cylinder.

3. The automatic bending device according to claim 2, wherein the material pulling mechanism further comprises a third cylinder and a material pulling connecting rod, a driving end of the third cylinder extends along the transverse direction, the third cylinder is linked with a driving end of the second cylinder, one end of the material pulling connecting rod is linked with a driving end of the third cylinder, the other end of the material pulling connecting rod is fixedly connected with the material pulling arm, the third cylinder can drive the material pulling connecting rod to rotate and drive the material pulling connecting rod to move close to or away from the bending base, and when the material pulling connecting rod moves close to the bending base, the material pulling arm is driven to rotate, so that the material pulling arm and the material pulling baffle are dislocated; when the material pulling connecting rod moves away from the bending base, the material pulling arm can be driven to rotate, so that the material pulling arm is opposite to the material pulling baffle and is matched with the material pulling baffle to clamp the workpiece.

4. The automatic bending device according to claim 1, wherein the arc-shaped bracket comprises a first arc surface and a second arc surface which are opposite to each other, the arc radius of the first arc surface is smaller than that of the second arc surface, and the rack is arranged on the first arc surface and/or the second arc surface along the length direction of the arc-shaped bracket.

5. The automatic bending device according to claim 1, wherein the bracket driving member includes a first motor and a first rotating gear, the first motor is disposed on the bending machine frame, the first rotating gear is linked with an output end of the first motor, the first rotating gear is engaged with the rack, and the first motor drives the first rotating gear to rotate so that the arc-shaped bracket slides close to or away from the bending tool bit.

6. The automatic bending device according to claim 5, wherein two arc-shaped supporting arms and two arc-shaped sliding ways are arranged, the two arc-shaped sliding ways are arranged on the same side of the bending rack at intervals, the two arc-shaped supporting arms are correspondingly and slidably arranged in the two arc-shaped sliding ways, the supporting arm driving member further comprises a supporting arm linkage rod and a second rotating gear, the supporting arm linkage rod is linked with the output shaft of the first motor, the first rotating gear and the second rotating gear are respectively and fixedly arranged at two opposite ends of the supporting arm linkage rod, the first rotating gear is meshed with a rack on one arc-shaped supporting arm, and the second rotating gear is meshed with a rack on the other arc-shaped supporting arm.

7. The automatic bending device according to claim 1, wherein the arc-shaped slideway comprises a first plate body and a second plate body, the first plate body and the second plate body are arranged on the bending machine frame at intervals, an arc-shaped groove is formed between the first plate body and the second plate body, and the arc-shaped supporting arm is arranged in the arc-shaped groove in a sliding manner.

8. The automatic bending device according to claim 1, wherein the bending mechanism further comprises a supporting plate and a limiting member, the supporting plate can bear a workpiece, the arc-shaped supporting arm comprises a first end and a second end which are opposite to each other, the first end of the arc-shaped supporting arm is fixedly connected with the supporting plate, the limiting member is arranged at the second end of the arc-shaped supporting arm, the arc-shaped supporting arm can be close to the bending tool bit to slide to jack up the supporting plate, and is abutted and limited by the limiting member and the arc-shaped slideway, or the arc-shaped supporting arm can be far away from the bending tool bit to slide to put down the supporting plate.

9. The automatic bending device according to claim 1, wherein the bending mechanism further comprises a bending conveying member, the bending conveying member is arranged on the bending rack and is in butt joint with the bending base, and the bending conveying member can convey a workpiece which is punched by the bending tool bit to the material pulling mechanism.

10. The automatic bending device according to claim 9, wherein there are two first driving members, two bending tool bits and two bending bases, at least two arc-shaped slideways, at least two arc-shaped bracket arms and at least two bracket arm driving members are provided, the two first driving members are respectively provided on a first side and a second side of the bending frame, the two bending bases are respectively provided on the first side and the second side of the bending frame, the bending conveying member is located between the two bending bases, the two bending tool bits and the two bending bases are arranged in a one-to-one correspondence manner, the two bending tool bits are respectively correspondingly linked with the two first driving members, the two arc-shaped slideways are respectively correspondingly close to the bending bases on the first side and the second side of the bending frame, and the two arc-shaped bracket arms are correspondingly slidably provided in the two arc-shaped slideways, the tooth shapes on the two supporting arm driving parts are respectively and correspondingly meshed with the racks on the two arc-shaped supporting arms.