Auxiliary positioning device for metal plate bending machine

Abstract

The invention discloses an auxiliary positioning device for a metal plate bending machine, and relates to the technical field of metal plate bending machines. The device comprises a positioning plate, the surface of the positioning plate is rotationally connected with the inner side face of a positioning ring, the side, away from a supporting assembly, of the positioning plate is fixedly connected with the output end of a transmission assembly, the bottom of the transmission assembly is fixedly connected with the bottom of the inner wall of a barrel, and the outer side face of the positioning ring is rotationally connected with the inner side face of a ring base. The two fixing assemblies are fixedly connected to the sides, away from the barrel, of the positioning plate and the positioning ring correspondingly, the supporting assembly is fixedly connected to the side, away from the barrel, of the positioning plate, the positioning assembly is fixedly connected to the side, away from the barrel, of the positioning ring, and the supporting assembly supports the bottom of the metal plate to prevent the metal plate from being twisted during bending; the metal plate rotates with the positioning assembly as the fulcrum, the bending position is determined, the situation that the bending position is not easy to control due to the fact that the density of the metal plate is uneven is avoided, the bending position is controlled, and the needed bent metal plate can be obtained.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal bending machines, and in particular to an auxiliary positioning device for a sheet metal bending machine. Background Art

[0002] The processing of sheet metal parts often involves bending the two ends of the sheet metal parts. At present, the two ends of the sheet metal parts are bent by a bending machine. When the bending work is performed, the sheet metal parts are manually placed on the bending mold, and then the sheet metal parts are bent by pressing down the bending block. After one end of the sheet metal part is bent, the sheet metal part is turned over and placed on the bending mold again to bend the other end; The existing bending machines rely on the workers' feeling to place the sheet metal parts when bending. However, the workers cannot ensure that the placement position is consistent each time when placing the sheet metal parts based on their feeling, which can easily lead to different bending lengths at both ends of the sheet metal parts. Therefore, it is necessary to assist the bending of the sheet metal to ensure that the bending lengths at both ends are the same. At the same time, the density of the sheet metal at different positions may be different. The bending position is not easy to control during bending, and the bending of the sheet metal needs to be assisted. Therefore, we propose an auxiliary positioning device for sheet metal bending machines. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an auxiliary positioning device for a sheet metal bending machine, comprising: A cylinder, and a ring seat arranged on the top of the cylinder; A positioning mechanism having a rotating structure for bending the sheet metal; The top of the cylinder is fixedly connected to the bottom of the ring seat, and the positioning mechanism is arranged inside the cylinder, and the surface of the positioning mechanism is fixedly connected to the bottom of the inner wall of the cylinder; Wherein, the positioning mechanism comprises: A positioning plate, the outer portion of which is rotatably connected to a positioning ring for driving the two ends of the sheet metal to move relative to each other; A transmission assembly, which is arranged at the bottom of the positioning plate and is used to drive the positioning plate to rotate; A fixing assembly, two of which are arranged on the top of the cylinder and are used to fix the two ends of the sheet metal respectively; A lifting component, which has a lifting structure and is used to lift the bottom of the sheet metal; A positioning assembly having a telescopic mechanism for providing a fulcrum for bending the sheet metal; The surface of the positioning plate is rotatably connected to the inner side of the positioning ring, the side of the positioning plate away from the lifting component is fixedly connected to the output end of the transmission component, the bottom of the transmission component is fixedly connected to the bottom of the inner wall of the cylinder, the outer side of the positioning ring is rotatably connected to the inner side of the ring seat, the two fixed components are respectively fixedly connected to the positioning plate and the side of the positioning ring away from the cylinder, the lifting component is fixedly connected to the side of the positioning plate away from the cylinder, the positioning component is fixedly connected to the side of the positioning ring away from the cylinder, the sheet metal is placed on the surface of the lifting component, the lifting component descends, and the two ends of the sheet metal enter the two fixed components The fixing component fixes the two ends of the sheet metal, and then the lifting component lifts the bottom of the sheet metal. The positioning component extends and rests against the surface of the sheet metal. Then the transmission component is started, and the transmission component drives the positioning plate to rotate, and drives one of the fixed components to rotate, so that the sheet metal rotates with the positioning component as the fulcrum, thereby completing the bending. The lifting component lifts the bottom of the sheet metal to avoid distortion of the sheet metal during bending. Under the action of the positioning component, the sheet metal rotates with the positioning component as the fulcrum, thereby determining the bending position, avoiding the uneven density of the sheet metal causing the bending position to be difficult to control, and controlling the bending position can obtain the required bent sheet metal.

[0004] Furthermore, the fixing assembly includes a fixing sleeve, and the fixing sleeves of the two fixing assemblies are respectively fixedly connected to the side of the positioning plate and the positioning ring away from the cylinder body, and the fixing columns are symmetrically arranged inside the fixing sleeve, and the surface of the fixing column away from the positioning assembly is slidably connected to the inner side surface of the fixing sleeve, and the surface of the fixing column close to the positioning assembly is slidably connected to the inner wall of the fixing sleeve, driving one fixing column to move, and the two fixing columns approach each other, thereby clamping the sheet metal.

[0005] Furthermore, a threaded rod is provided on the side of the fixing column away from the positioning component, and one end of the threaded rod close to the positioning component passes through the fixing sleeve and the two fixing columns in sequence, the surface of the threaded rod is rotatably connected to the inner wall of the fixing sleeve, the surface of the threaded rod is rotatably connected to the inner wall of the fixing column close to the positioning component, and the surface of the threaded rod is threadedly connected to the inner wall of the fixing column away from the positioning component. The threaded rod is rotated, and the threaded rod drives the fixing column to move, thereby clamping the sheet metal. The threaded connection is not easy to loosen, and can slip during the bending process.

[0006] Furthermore, rubber strips are provided on the sides of the two fixing columns that are close to each other. There are two groups of rubber strips, and each group of rubber strips is provided with a plurality of rubber strips. The rubber strips are arranged at an angle, and the surfaces of the rubber strips are fixedly connected to the surfaces of the fixing columns. The two fixing columns are close to the sheet metal, and the rubber strips are in contact with the surfaces of the sheet metal. The rubber strips made of rubber material can increase the friction between the sheet metal and the sheet metal, thereby preventing the sheet metal from slipping during bending and ensuring the bending quality. The inclined rubber strips can increase the area of ​​contact with the sheet metal, so that the fixing columns can fix sheet metals of various sizes.

[0007] Furthermore, the transmission assembly includes a motor, the surface of which is fixedly connected to the bottom of the inner wall of the cylinder, a rotating shaft is fixedly connected to a side of the motor close to the positioning plate, the rotating shaft is fixedly connected to an output end of the motor, and an end of the rotating shaft away from the motor is fixedly connected to a side of the positioning plate close to the motor. When the motor is started, the output end of the motor drives the rotating shaft to rotate, thereby driving the positioning plate to rotate, thereby driving the fixed assembly on its surface to rotate, thereby bending the sheet metal.

[0008] Furthermore, a rotation spring is fixedly connected to the side of the positioning ring away from the fixing sleeve, and one end of the rotation spring away from the positioning ring is fixedly connected to the surface of the rotating shaft, and the rotation spring sleeve is arranged on the outside of the rotating shaft. The rotating shaft rotates to twist the rotation spring. After one end is bent, the motor is turned off, and under the elastic force of the rotation spring to restore the deformation, the positioning ring is driven to rotate, and the other fixed component is driven to rotate to bend the other end of the sheet metal. At the same time, the positioning ring and the fixed component on the top of the positioning plate are made symmetrical again to avoid offset between the positioning component and the fixed component, thereby ensuring the determination of the bending point of the sheet metal.

[0009] Furthermore, the outer side surface of the positioning ring is fixedly connected with a first curved tooth, and a plurality of the first curved teeth are arranged along the circumference of the positioning ring, and a second curved tooth is arranged at the intervals between the plurality of the first curved teeth, and the surface of the second curved tooth is fixedly connected to the inner side surface of the ring seat. When bending the sheet metal, the plane sides of the first curved tooth and the second curved tooth abut against each other, and the positioning ring will not rotate, thereby ensuring the bending of the sheet metal. Subsequently, under the elastic force of the rotating spring, the positioning ring is driven to rotate, and the plane sides of the first curved tooth and the second curved tooth abut against each other and slip off, thereby generating rotation, completing the bending of the other end of the sheet metal, which can avoid loosening of the sheet metal when bending at both ends, and ensure the bending quality of both ends of the sheet metal.

[0010] Furthermore, the lifting assembly includes a missing plate, the bottom of which is fixedly connected with a buffer spring, one end of the buffer spring away from the missing plate is fixedly connected to the top of the positioning plate, a limited height column is arranged inside the buffer spring, the sheet metal is placed on the top of the missing plate, the missing plate descends, driving the buffer spring to contract, so that the top of the missing plate is flush with the top of the fixed sleeve, and at the same time, under the elastic force of the buffer spring to restore the deformation, the bottom of the sheet metal is lifted to avoid distortion when the sheet metal is bent, and at the same time, the bottom of the sheet metal is buffered when placed to avoid deformation of the soft sheet metal caused by bumps. The setting of the height limiting column limits the missing plate to avoid squeezing of the fixing sleeve and the sheet metal, thereby avoiding deformation of the sheet metal.

[0011] Furthermore, a copper tube is provided running through the interior of the positioning plate, the surface of the copper tube is fixedly connected to the inner wall of the positioning plate, a rod is provided inside the copper tube, and one end of the rod located inside the copper tube is a magnet, and one end of the rod away from the positioning plate is fixedly connected to a side of the missing plate close to the positioning plate, and the missing plate descends, driving the rod to descend, and the magnet end of the rod moves inside the copper tube, and the magnet cuts the magnetic lines of force to generate a magnetic force in the opposite direction of descent, thereby reducing the descent speed and further buffering the sheet metal on the top of the missing plate.

[0012] The cam is configured to move the extension pin of the support frame relative to the extension pin of the support frame, and the extension pin is configured to move the extension pin of the support frame relative to the extension pin of the support frame.

[0013] The present invention has the beneficial effects: The present invention provides a positioning mechanism and a lifting component to lift the bottom of the sheet metal to avoid distortion of the sheet metal during bending. Under the action of the positioning component, the sheet metal rotates with the positioning component as a fulcrum, thereby determining the bending position and avoiding the difficulty in controlling the bending position due to uneven density of the sheet metal. By controlling the bending position, the desired bent sheet metal can be obtained.

[0014] The present invention sets a fixing component, and the threaded rod drives the fixing column to move, so as to clamp the sheet metal. The threaded connection is not easy to loosen and can slip during the bending process. The rubber strip contacts the surface of the sheet metal. The rubber strip can increase the friction between the rubber strip and the sheet metal, so as to avoid the sheet metal from slipping during bending and ensure the bending quality. The inclined rubber strip can increase the area of ​​contact with the sheet metal, so that the fixing column can fix sheet metals of various sizes.

[0015] The present invention provides a rotating spring, and under the elastic force of the rotating spring to restore the deformation, the positioning ring is driven to rotate, and the other fixed component is driven to rotate, so as to bend the other end of the sheet metal, and at the same time, the positioning ring and the fixed component on the top of the positioning plate are made symmetrical again, so as to avoid the positioning component and the fixed component from being offset, thereby ensuring the determination of the bending point of the sheet metal. When bending the sheet metal, the plane sides of the first curved tooth and the second curved tooth abut against each other, and the positioning ring will not rotate, so as to ensure the bending of the sheet metal. Subsequently, under the elastic force of the rotating spring, the positioning ring is driven to rotate, and the plane sides of the first curved tooth and the second curved tooth abut against each other and slip off, thereby generating rotation, completing the bending of the other end of the sheet metal, which can avoid the sheet metal from loosening when bending at both ends, and ensure the bending quality of the sheet metal at both ends.

[0016] The present invention provides a lifting component, and under the elastic force of the buffer spring to restore the deformation, the bottom of the sheet metal is lifted to avoid distortion when the sheet metal is bent. At the same time, the bottom of the sheet metal is buffered when it is placed to prevent the soft sheet metal from being deformed by collision. The height limiting column is provided to limit the missing plate to avoid squeezing of the fixing sleeve and the sheet metal and deformation of the sheet metal. The magnetic end of the rod moves inside the copper tube, and the magnet cuts the magnetic lines of force to generate a magnetic force in the opposite direction of descent, thereby reducing the descent speed and further buffering the sheet metal at the top of the missing plate.

[0017] The present invention sets a positioning component, and the arc plate moves to contact the sheet metal to determine the bending point of the sheet metal. The corrugated plate can increase the friction between the sheet metal and the arc plate to avoid the offset of the sheet metal and the arc plate, thereby ensuring the positioning effect. A sleeve plate is set, and the sleeve plate can limit the output end of the telescopic rod to avoid the shaking of the telescopic rod, thereby further ensuring the positioning effect. The arc plate is set to an arc shape, and the sheet metal can fit the arc plate when bending, thereby ensuring the bending curvature and the bending effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the auxiliary positioning device for the sheet metal bending machine of the present invention; Figure 2 It is a schematic diagram of the positioning mechanism structure of the present invention; Figure 3 It is a schematic diagram of the structure of the fixing assembly of the present invention; Figure 4 For the present invention Figure 3 A magnified view of part A; Figure 5 It is a schematic diagram of the positioning mechanism structure of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the ring seat of the present invention; Figure 7 It is a schematic diagram of the structure of the lifting assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the positioning component of the present invention; Fig. 9 It is a schematic diagram of the rod structure of the present invention.

[0019] In the figure: 1. cylinder; 2. ring seat; 3. positioning mechanism; 31. positioning plate; 32. positioning ring; 33. transmission assembly; 331. motor; 332. rotating shaft; 34. fixing assembly; 341. fixing sleeve; 342. fixing column; 343. threaded rod; 344. rubber strip; 35. lifting assembly; 351. missing plate; 352. buffer spring; 353. height limit column; 354. copper tube; 355. rod body; 36. positioning assembly; 361. arc plate; 362. corrugated plate; 363. telescopic rod; 364. mounting seat; 365. sleeve plate; 37. rotating spring; 38. first curved tooth; 39. second curved tooth. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] Example 1, please refer to Figure 1-Figure 6 The present invention is an auxiliary positioning device for a sheet metal bending machine, comprising: A cylinder 1, and a ring seat 2 arranged on the top of the cylinder 1; A positioning mechanism 3, which has a rotating structure and is used to bend the sheet metal; The top of the cylinder 1 is fixedly connected to the bottom of the ring seat 2, and the positioning mechanism 3 is arranged inside the cylinder 1, and the surface of the positioning mechanism 3 is fixedly connected to the bottom of the inner wall of the cylinder 1; Wherein, the positioning mechanism 3 comprises: A positioning plate 31, the outer portion of which is rotatably connected to a positioning ring 32, for driving the two ends of the sheet metal to move relative to each other; A transmission assembly 33, which is disposed at the bottom of the positioning plate 31 and is used to drive the positioning plate 31 to rotate; A fixing assembly 34, two of which are provided on the top of the cylinder 1, and are used to fix the two ends of the sheet metal respectively; A lifting component 35, which has a lifting structure and is used to lift the bottom of the sheet metal; A positioning assembly 36, the positioning assembly 36 having a telescopic mechanism for providing a fulcrum for bending the sheet metal; The surface of the positioning plate 31 is rotatably connected to the inner side of the positioning ring 32, the side of the positioning plate 31 away from the lifting component 35 is fixedly connected to the output end of the transmission component 33, the bottom of the transmission component 33 is fixedly connected to the bottom of the inner wall of the cylinder 1, the outer side of the positioning ring 32 is rotatably connected to the inner side of the ring seat 2, the two fixing components 34 are respectively fixedly connected to the side of the positioning plate 31 and the positioning ring 32 away from the cylinder 1, the lifting component 35 is fixedly connected to the side of the positioning plate 31 away from the cylinder 1, the positioning component 36 is fixedly connected to the side of the positioning ring 32 away from the cylinder 1, the sheet metal is placed on the surface of the lifting component 35, the lifting component 35 descends, and the two ends of the sheet metal enter the two fixing components 3 4, the fixing assembly 34 fixes the two ends of the sheet metal, and then the lifting assembly 35 lifts the bottom of the sheet metal, the positioning assembly 36 extends and rests on the surface of the sheet metal, and then the transmission assembly 33 is started, the transmission assembly 33 drives the positioning plate 31 to rotate, and drives one of the fixing assemblies 34 to rotate, so that the sheet metal rotates with the positioning assembly 36 as a fulcrum, thereby completing the bending, and the lifting assembly 35 lifts the bottom of the sheet metal to avoid the sheet metal from being twisted during bending. Under the action of the positioning assembly 36, the sheet metal rotates with the positioning assembly 36 as a fulcrum, thereby determining the bending position, avoiding the uneven density of the sheet metal causing the bending position to be difficult to control, and controlling the bending position can obtain the desired bent sheet metal.

[0022] The fixing assembly 34 includes a fixing sleeve 341. The fixing sleeves 341 of the two fixing assemblies 34 are respectively fixedly connected to the side of the positioning plate 31 and the positioning ring 32 away from the cylinder 1. The fixing columns 342 are symmetrically arranged inside the fixing sleeve 341. The surface of the fixing column 342 away from the positioning assembly 36 is slidably connected to the inner side surface of the fixing sleeve 341, and the surface of the fixing column 342 close to the positioning assembly 36 is slidably connected to the inner wall of the fixing sleeve 341, driving one fixing column 342 to move, and the two fixing columns 342 are close to each other, thereby clamping the sheet metal.

[0023] A threaded rod 343 is provided on the side of the fixing column 342 away from the positioning component 36, and the end of the threaded rod 343 close to the positioning component 36 passes through the fixing sleeve 341 and the two fixing columns 342 in sequence, and the surface of the threaded rod 343 is rotatably connected to the inner wall of the fixing sleeve 341, and the surface of the threaded rod 343 is rotatably connected to the inner wall of the fixing column 342 close to the positioning component 36, and the surface of the threaded rod 343 is threadedly connected to the inner wall of the fixing column 342 away from the positioning component 36. The threaded rod 343 is rotated, and the threaded rod 343 drives the fixing column 342 to move, thereby clamping the sheet metal. The threaded connection is not easy to loosen, and can slip during the bending process.

[0024] Rubber strips 344 are provided on the sides of the two fixing columns 342 that are close to each other. There are two groups of rubber strips 344, and each group of rubber strips 344 is provided with a plurality of rubber strips 344. The rubber strips 344 are arranged at an angle, and the surface of the rubber strips 344 is fixedly connected to the surface of the fixing column 342. The fixing column 342 is close to the sheet metal, and the rubber strips 344 are in contact with the surface of the sheet metal. The rubber strips 344 made of rubber material can increase the friction between the sheet metal and the sheet metal, thereby preventing the sheet metal from slipping during bending and ensuring the bending quality. The inclined rubber strips 344 can increase the area of ​​contact with the sheet metal, so that the fixing column 342 can fix sheet metals of various sizes.

[0025] The transmission assembly 33 includes a motor 331, the surface of the motor 331 is fixedly connected to the bottom of the inner wall of the cylinder 1, and a rotating shaft 332 is fixedly connected to the side of the motor 331 close to the positioning plate 31, and the rotating shaft 332 is fixedly connected to the output end of the motor 331. The end of the rotating shaft 332 away from the motor 331 is fixedly connected to the side of the positioning plate 31 close to the motor 331. When the motor 331 is started, the output end of the motor 331 drives the rotating shaft 332 to rotate, thereby driving the positioning plate 31 to rotate, thereby driving the fixed assembly 34 on its surface to rotate, thereby bending the sheet metal.

[0026] The side of the positioning ring 32 away from the fixing sleeve 341 is fixedly connected with a rotation spring 37, and the end of the rotation spring 37 away from the positioning ring 32 is fixedly connected to the surface of the rotating shaft 332, and the rotation spring 37 is sleeved on the outside of the rotating shaft 332. The rotating shaft 332 rotates to twist the rotation spring 37. After one end is bent, the motor 331 is turned off. Under the elastic force of the rotation spring 37 to restore the deformation, the positioning ring 32 is driven to rotate, and the other fixing component 34 is driven to rotate to bend the other end of the sheet metal. At the same time, the positioning ring 32 and the fixing component 34 on the top of the positioning plate 31 are made symmetrical again to avoid the positioning component 36 and the fixing component 34 from being offset, thereby ensuring the determination of the bending point of the sheet metal.

[0027] The outer side surface of the positioning ring 32 is fixedly connected with a first curved tooth 38, and a plurality of first curved teeth 38 are arranged along the circumference of the positioning ring 32. Second curved teeth 39 are arranged at the intervals between the plurality of first curved teeth 38, and the surface of the second curved teeth 39 is fixedly connected to the inner side surface of the ring seat 2. When bending the sheet metal, the plane sides of the first curved teeth 38 and the second curved teeth 39 abut against each other, and the positioning ring 32 will not rotate, ensuring the bending of the sheet metal. Subsequently, under the elastic force of the rotating spring 37, the positioning ring 32 is driven to rotate, and the plane sides of the first curved teeth 38 and the second curved teeth 39 abut against each other and slip, thereby generating rotation, completing the bending of the other end of the sheet metal, which can prevent the sheet metal from loosening when bending at both ends, and ensure the bending quality of both ends of the sheet metal.

[0028] Example 2, please refer to Figure 1-Figure 9The lifting component 35 includes a missing plate 351, and a buffer spring 352 is fixedly connected to the bottom of the missing plate 351. The end of the buffer spring 352 away from the missing plate 351 is fixedly connected to the top of the positioning plate 31. A limited height column 353 is arranged inside the buffer spring 352. The sheet metal is placed on the top of the missing plate 351. The missing plate 351 descends, driving the buffer spring 352 to contract, so that the top of the missing plate 351 is flush with the top of the fixing sleeve 341. At the same time, under the elastic force of the buffer spring 352 to restore the deformation, the bottom of the sheet metal is lifted to avoid distortion when the sheet metal is bent. At the same time, the bottom of the sheet metal is buffered when it is placed to avoid deformation caused by collision of the soft sheet metal. The setting of the height limiting column 353 limits the missing plate 351 to avoid squeezing of the fixing sleeve 341 and the sheet metal, thereby avoiding deformation of the sheet metal.

[0029] A copper tube 354 is provided inside the positioning plate 31, and the surface of the copper tube 354 is fixedly connected to the inner wall of the positioning plate 31. A rod 355 is provided inside the copper tube 354, and one end of the rod 355 located inside the copper tube 354 is a magnet. The end of the rod 355 away from the positioning plate 31 is fixedly connected to the side of the missing plate 351 close to the positioning plate 31. The missing plate 351 descends, driving the rod 355 to descend, and the magnet end of the rod 355 moves inside the copper tube 354. The magnet cuts the magnetic lines of force to generate a magnetic force in the opposite direction of descent, thereby reducing the descent speed and further buffering the sheet metal on the top of the missing plate 351.

[0030] An arc plate 361 is provided at the notch of the missing plate 351, and a telescopic rod 363 is fixedly connected to one end of the arc plate 361 away from the missing plate 351, and a mounting seat 364 is fixedly connected to the surface of the telescopic rod 363 away from the arc plate 361, and the mounting seat 364 is fixedly connected to the side of the positioning ring 32 away from the cylinder 1, and a sleeve plate 365 is slidably connected to the surface of the telescopic rod 363, and the sleeve plate 365 is fixedly connected to the side of the positioning ring 32 away from the cylinder 1, and the sleeve plate 365 is arranged on a side of the mounting seat 364 close to the arc plate 361, and a corrugated plate 362 is fixedly connected to the side of the arc plate 361 away from the telescopic rod 363, and the corrugated plate 362 Several corrugated plates 362 are provided, and are made of rubber material. When the telescopic rod 363 is started, the telescopic rod 363 is extended and retracted, driving the arc plate 361 to move, thereby contacting the sheet metal and determining the bending point of the sheet metal. The corrugated plate 362 can increase the friction between the sheet metal and the arc plate 361 to avoid the offset of the sheet metal and the arc plate 361, thereby ensuring the positioning effect. A sleeve plate 365 is provided, and the sleeve plate 365 can limit the output end of the telescopic rod 363 to avoid the shaking of the telescopic rod 363 and further ensure the positioning effect. The arc plate 361 is set to be an arc, and the sheet metal can fit the arc plate 361 when bending, thereby ensuring the bending curvature and the bending effect.

[0031] When in use, the sheet metal is placed on the top of the missing plate 351, and the missing plate 351 descends, driving the buffer spring 352 to contract, so that the top of the missing plate 351 is flush with the top of the fixing sleeve 341, and the missing plate 351 descends, driving the rod body 355 to descend, and the magnetic end of the rod body 355 moves inside the copper tube 354, and the magnet cuts the magnetic flux lines, generating a magnetic force in the opposite direction of the descent, reducing the descent speed, rotating the threaded rod 343, and the threaded rod 343 drives the fixing column 342 to move, thereby clamping the sheet metal, and then starting the motor 331, and the output end of the motor 331 drives the rotating shaft 332 to rotate, thereby driving the positioning plate 31 to rotate, thereby driving the fixing component 34 on its surface to rotate, and bending the sheet metal, the rotating shaft 332 rotates, and the rotating spring 37 is twisted. After one end is bent, the motor 331 is turned off, and under the elastic force of the rotating spring 37 to restore the deformation, the positioning ring 32 is driven to rotate, and the other fixing component 34 is driven to rotate, and the other end of the sheet metal is bent.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An auxiliary positioning device for a sheet metal bending machine, characterized in that: include: A cylinder (1), and a ring seat (2) arranged on the top of the cylinder (1); A positioning mechanism (3), the positioning mechanism (3) having a rotating structure and used for bending the sheet metal; The top of the cylinder (1) is fixedly connected to the bottom of the ring seat (2), and the positioning mechanism (3) is arranged inside the cylinder (1), and the surface of the positioning mechanism (3) is fixedly connected to the bottom of the inner wall of the cylinder (1); Wherein, the positioning mechanism (3) comprises: A positioning plate (31), the outer portion of which is rotatably connected to a positioning ring (32) for driving the two ends of the sheet metal to move relative to each other; A transmission assembly (33), the transmission assembly (33) being arranged at the bottom of the positioning plate (31) and being used to drive the positioning plate (31) to rotate; A fixing assembly (34), two of which are arranged on the top of the cylinder (1) and are used to fix the two ends of the sheet metal respectively; A lifting component (35), the lifting component (35) having a lifting structure and used for lifting the bottom of the sheet metal; A positioning assembly (36), the positioning assembly (36) having a telescopic mechanism for providing a fulcrum for bending the sheet metal; The surface of the positioning plate (31) is rotatably connected to the inner side surface of the positioning ring (32); the side of the positioning plate (31) away from the lifting assembly (35) is fixedly connected to the output end of the transmission assembly (33); the bottom of the transmission assembly (33) is fixedly connected to the bottom of the inner wall of the cylinder (1); the outer side surface of the positioning ring (32) is rotatably connected to the inner side surface of the ring seat (2); the two fixing assemblies (34) are respectively fixedly connected to the side of the positioning plate (31) and the positioning ring (32) away from the cylinder (1); the lifting assembly (35) is fixedly connected to the side of the positioning plate (31) away from the cylinder (1); and the positioning assembly (36) is fixedly connected to the side of the positioning ring (32) away from the cylinder (1).

2. The auxiliary positioning device for a sheet metal bending machine according to claim 1, characterized in that: The fixing assembly (34) comprises a fixing sleeve (341), the fixing sleeves (341) of the two fixing assemblies (34) being respectively fixedly connected to the side of the positioning plate (31) and the positioning ring (32) away from the cylinder (1), and fixing columns (342) are symmetrically arranged inside the fixing sleeve (341), and the surface of the fixing column (342) away from the positioning assembly (36) is slidably connected to the inner side surface of the fixing sleeve (341), and the surface of the fixing column (342) close to the positioning assembly (36) is slidably connected to the inner wall of the fixing sleeve (341).

3. The auxiliary positioning device for a sheet metal bending machine according to claim 2, characterized in that: A threaded rod (343) is provided on one side of the fixing column (342) away from the positioning assembly (36); one end of the threaded rod (343) close to the positioning assembly (36) passes through the fixing sleeve (341) and the two fixing columns (342) in sequence; the surface of the threaded rod (343) is rotatably connected to the inner wall of the fixing sleeve (341); the surface of the threaded rod (343) is rotatably connected to the inner wall of the fixing column (342) close to the positioning assembly (36); and the surface of the threaded rod (343) is threadedly connected to the inner wall of the fixing column (342) away from the positioning assembly (36).

4. The auxiliary positioning device for a sheet metal bending machine according to claim 3, characterized in that: A rubber strip (344) is provided on one side of the two fixing columns (342) close to each other. The rubber strips (344) are provided in two groups, and each group of the rubber strips (344) is provided with a plurality of rubber strips. The rubber strips (344) are provided in an inclined manner, and the surface of the rubber strips (344) is fixedly connected to the surface of the fixing column (342).

5. The auxiliary positioning device for a sheet metal bending machine according to claim 4, characterized in that: The transmission assembly (33) comprises a motor (331), the surface of the motor (331) being fixedly connected to the bottom of the inner wall of the cylinder (1), a rotating shaft (332) being fixedly connected to a side of the motor (331) close to the positioning plate (31), the rotating shaft (332) being fixedly connected to an output end of the motor (331), and an end of the rotating shaft (332) away from the motor (331) being fixedly connected to a side of the positioning plate (31) close to the motor (331).

6. The auxiliary positioning device for a sheet metal bending machine according to claim 5, characterized in that: A rotation spring (37) is fixedly connected to a side of the positioning ring (32) away from the fixing sleeve (341); one end of the rotation spring (37) away from the positioning ring (32) is fixedly connected to the surface of the rotating shaft (332); and the rotation spring (37) is sleeved outside the rotating shaft (332).

7. The auxiliary positioning device for a sheet metal bending machine according to claim 6, characterized in that: The outer side surface of the positioning ring (32) is fixedly connected with a first curved tooth (38), a plurality of the first curved teeth (38) are arranged along the circumference of the positioning ring (32), a second curved tooth (39) is arranged at intervals between the plurality of the first curved teeth (38), and the surface of the second curved tooth (39) is fixedly connected with the inner side surface of the ring seat (2).

8. The auxiliary positioning device for a sheet metal bending machine according to claim 7, characterized in that: The lifting assembly (35) comprises a missing plate (351), a buffer spring (352) being fixedly connected to the bottom of the missing plate (351), an end of the buffer spring (352) away from the missing plate (351) being fixedly connected to the top of the positioning plate (31), and a limited height column (353) being arranged inside the buffer spring (352).

9. The auxiliary positioning device for a sheet metal bending machine according to claim 8, characterized in that: A copper tube (354) is provided inside the positioning plate (31), the surface of the copper tube (354) is fixedly connected to the inner wall of the positioning plate (31), a rod body (355) is provided inside the copper tube (354), and one end of the rod body (355) located inside the copper tube (354) is a magnet, and one end of the rod body (355) away from the positioning plate (31) is fixedly connected to a side of the missing plate (351) close to the positioning plate (31).

10. The auxiliary positioning device for a sheet metal bending machine according to claim 9, characterized in that: The positioning assembly (36) comprises an arc-shaped plate (361), the arc-shaped plate (361) being arranged at the notch of the missing plate (351), the end of the arc-shaped plate (361) away from the missing plate (351) being fixedly connected to a telescopic rod (363), the surface of the telescopic rod (363) away from the arc-shaped plate (361) being fixedly connected to a mounting seat (364), the mounting seat (364) being fixedly connected to a side of the positioning ring (32) away from the cylinder (1), the telescopic rod ( The surface of the telescopic rod (363) is slidably connected to a sleeve plate (365), the sleeve plate (365) is fixedly connected to a side of the positioning ring (32) away from the cylinder (1), and the sleeve plate (365) is arranged on a side of the mounting seat (364) close to the arc plate (361), and a corrugated plate (362) is fixedly connected to a side of the arc plate (361) away from the telescopic rod (363), a plurality of corrugated plates (362) are provided, and the corrugated plates (362) are made of rubber material.

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