Rolling type numerical control bending device

Abstract

The invention relates to the technical field of metal processing, and discloses a rolling type numerical control bending device which comprises a main plate, the top of the main plate is fixedly connected with multiple sets of telescopic air cylinders, the tops of the telescopic air cylinders are fixedly connected with a connecting plate, the bottom of the connecting plate is slidably provided with an upper rolling assembly, and the inner wall of the main plate is slidably provided with a lower rolling assembly. The upper rolling assembly and the lower rolling assembly are used for bending a metal plate, a positioning assembly is installed on the inner wall of the main plate in a sliding mode and used for positioning the metal plate, the upper rolling assembly comprises a first sliding plate, the first sliding plate is installed below the connecting plate in a sliding mode, and multiple sets of first rotating shafts are rotationally connected to the side wall of the first sliding plate; according to the rolling type numerical control bending device, the telescopic air cylinder is used for driving the upper rolling wheel to slide downwards, the upper rolling wheel can press a metal plate into an inner cavity of the lower rolling wheel to be bent, the whole upper rolling wheel is arranged to be inclined, so that the metal plate can be slowly deformed to the bending angle in the bending process, and cracking caused by excessive deformation of the metal plate is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and more particularly to a rolling type CNC bending device. Background Art

[0002] Roll forming is a metal forming process in which a metal sheet or roll is bent into a uniform longitudinal profile with the help of specialized tools. Roll forming gradually bends the metal sheet into the desired shape. The raw materials used in roll forming are flat metal sheets or metal rolls. Unlike other metal forming processes, roll forming is a cold forming process that does not require high-temperature equipment to heat the metal. The bending radius of roll forming is determined by the material properties of the metal sheet.

[0003] A metal sheet rolling and bending machine is a device for bending metal sheets. It includes two support plates and multiple sets of forming rollers rotatably arranged on the two support plates. Each set of forming rollers includes an upper roller and a lower roller arranged opposite to each other. The upper roller and the lower roller are provided with bending surfaces that are used together to bend the sheet passing between the upper roller and the lower roller. However, the sheet rolling and bending device in the prior art usually has an inclination angle of the bending surface that is consistent with the bending angle of the sheet. The sheet is bent and formed once when passing through the roller assembly, so that during the bending process, the metal sheet is greatly deformed and prone to cracking.

[0004] In view of this, the present invention proposes a rolling CNC bending device to solve this problem. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rolling CNC bending device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a rolling-type CNC bending device, comprising a main board, a plurality of telescopic cylinders fixedly connected to the top of the main board, a connecting plate fixedly connected to the top of the telescopic cylinder, an upper roller assembly slidably mounted on the bottom of the connecting plate, a lower roller assembly slidably mounted on the inner wall of the main board, the upper and lower roller assemblies being used to bend metal plates, a positioning assembly slidably mounted on the inner wall of the main board, the positioning assembly being used to position the metal plates;

[0007] The upper roller assembly includes a first sliding plate, which is slidably mounted below the connecting plate. The side wall of the first sliding plate is rotatably connected to a plurality of first rotating shafts. The side wall of the first rotating shaft is clamped with an upper roller, and the upper roller is arranged in an inclined manner as a whole.

[0008] The lower rolling assembly includes a second sliding plate, which is slidably installed on the inner wall of the main board. The side wall of the second sliding plate is rotatably connected to multiple sets of second rotating shafts. The side wall of the second rotating shaft is clamped with a lower roller, and the lower roller is flush with the surface of the main board.

[0009] Furthermore, the side walls of the first sliding plate and the second sliding plate are both fixedly connected with a first servo motor, and the two groups of first servo motor output ends are fixedly connected with the first rotating shaft and the second rotating shaft respectively.

[0010] Furthermore, the side walls of the first rotating shaft and the second rotating shaft are fixedly connected with sprockets, and crawlers are rotatably connected between the two sets of sprockets.

[0011] As a further description of the above technical solution: using the inclined upper roller group to press down the metal plate located on the surface of the lower roller can slowly deform the metal plate and reduce the probability of bending and cracking of the metal plate.

[0012] Furthermore, the positioning assembly includes a second servo motor, which is fixedly mounted on the side wall of the mainboard. The output end of the second servo motor is fixedly connected to a bidirectional threaded rod, and both side walls of the bidirectional threaded rod are threadedly connected to a connecting frame.

[0013] Furthermore, the first threaded column and the second threaded column are rotatably connected on both sides of the inner wall of the main board, and the side walls of the first threaded column and the second threaded column are both threadedly connected to a connecting frame that is the same as the side wall of the bidirectional threaded rod, and the inner wall of the connecting frame is rotatably connected to a rotating roller.

[0014] As a further description of the above technical solution: two sets of connecting frames on the side walls of the bidirectional threaded rod are used to position the metal plate, and the connecting frames on the side walls of the first threaded column and the second threaded column are used to limit the rebound of the metal plate after bending.

[0015] Furthermore, the main board and the side walls of the connecting plate are fixedly connected to a third servo motor, the output end of the third servo motor is fixedly connected to a third threaded column, and two groups of third threaded columns are respectively threadedly connected to the first sliding plate and the second sliding plate.

[0016] Furthermore, the top of the mainboard is fixedly connected to a fixing frame, the top of the fixing frame is threadedly connected to a threaded bolt, the bottom end of the threaded bolt is rotatably connected to a mounting frame, and the inner wall of the mounting frame is rotatably connected to a pressure roller.

[0017] Furthermore, the side walls of the first threaded column and the second threaded column are both threadedly connected with nuts, which are used to fix the first threaded column and the second threaded column. The top of the mounting frame is fixedly connected to a limiting column, and the limiting column passes through the fixing frame.

[0018] As a further description of the above technical solution: the pressure roller is moved downward to position the metal plate on the surface of the main board and evenly slide and bend it.

[0019] Technical effects and advantages of the present invention:

[0020] 1. Compared with the existing technology, this rolling CNC bending device uses a telescopic cylinder to drive the upper roller to slide down. The upper roller will press the metal sheet into the inner cavity of the lower roller for bending. Since the upper roller is set to an inclined shape as a whole, the metal sheet will slowly deform to the bending angle during the bending process, avoiding excessive deformation of the metal sheet and causing cracking.

[0021] 2. Compared with the existing technology, this metal material rolling device, after placing the metal plate on the main board surface, rotates the bidirectional threaded rod, and uses the threaded connection between the bidirectional threaded rod and the connecting frame to move the connecting frame toward the middle until the connecting frame clamps the metal plate in the middle, and then rotates the threaded bolt to drive the mounting frame to slide down, and uses the pressure roller on the inner wall of the mounting frame to press the metal plate, which plays a positioning role for the metal plate, facilitates the adjustment of the position of the upper roller and the lower roller, and bends the metal plate at different positions.

[0022] 3. Compared with the existing technology, the metal material rolling device rotates the first threaded column and the second threaded column respectively at the discharge point after the metal sheet is bent, and utilizes the threaded connection between the first threaded column and the second threaded column and the connecting frame to slide the connecting frame, and utilizes the rotating rollers on the inner wall of the connecting frame to limit the two sides of the bent metal sheet respectively, to avoid the metal sheet from rebounding due to its own elastic force after bending, resulting in deviation in its bending angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the back structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0025] Figure 3 It is a partial cross-sectional structural schematic diagram of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the present invention (front section);

[0027] Figure 5 It is a schematic structural diagram of the present invention (top view);

[0028] Figure 6 It is a structural schematic diagram of the connecting frame of the present invention.

[0029] The accompanying drawings are marked as follows: 1. Main board; 101. Telescopic cylinder; 102. Connecting plate; 2. Upper roller assembly; 201. First sliding plate; 202. First rotating shaft; 203. Upper roller; 204. First servo motor; 205. Sprocket; 206. Track; 3. Lower roller assembly; 301. Second sliding plate; 302. Second rotating shaft; 303. Lower roller; 4. Positioning assembly; 401. Second servo motor; 402. Bidirectional threaded rod; 403. Connecting frame; 404. First threaded column; 405. Second threaded column; 406. Rotating roller; 5. Third servo motor; 501. Third threaded column; 502. Fixed frame; 503. Threaded bolt; 504. Pressure roller; 505. Limiting column. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The rolling CNC bending device involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Reference Figures 1 to 6 The present invention provides a rolling CNC bending device, including a main board 1, a plurality of telescopic cylinders 101 are fixedly connected to the top of the main board 1, a connecting plate 102 is fixedly connected to the top of the telescopic cylinder 101, an upper rolling assembly 2 is slidably installed on the bottom of the connecting plate 102, a lower rolling assembly 3 is slidably installed on the inner wall of the main board 1, the upper rolling assembly 2 and the lower rolling assembly 3 are used to bend metal plates, a positioning assembly 4 is slidably installed on the inner wall of the main board 1, and the positioning assembly 4 is used to position the metal plate.

[0032] When the rolling CNC bending device is in use, the whole device is connected to the external power control system in advance, and the metal plate to be processed is placed on the Figure 2 The surface of the main board 1 on the middle left side enters the upper roller assembly 2 and the lower roller assembly 3 through the positioning function of the positioning assembly 4 to bend the metal sheet.

[0033] Specifically, the positioning assembly 4 includes a second servo motor 401, which is fixedly mounted on the side wall of the mainboard 1. The output end of the second servo motor 401 is fixedly connected to a bidirectional threaded rod 402, and both side walls of the bidirectional threaded rod 402 are threadedly connected to a connecting frame 403.

[0034] The top of the mainboard 1 is fixedly connected to a fixing frame 502 , the top of the fixing frame 502 is threadedly connected to a threaded bolt 503 , the bottom end of the threaded bolt 503 is rotatably connected to a mounting frame, and the inner wall of the mounting frame is rotatably connected to a pressure roller 504 .

[0035] It is worth noting that after the metal plate is placed on the surface of the main board 1, the bidirectional threaded rod 402 is rotated, and the threaded connection between the bidirectional threaded rod 402 and the connecting frame 403 is used to move the connecting frame 403 toward the middle until the connecting frame 403 clamps the metal plate in the middle, and then the threaded bolt 503 is rotated to drive the mounting frame to slide down, and the pressure roller 504 on the inner wall of the mounting frame is used to press the metal plate to position the metal plate, and both the pressure roller 504 and the rotating roller 406 can rotate and will not hinder the sliding of the metal plate on the surface of the main board 1.

[0036] The upper roller assembly 2 includes a first sliding plate 201, which is slidably mounted below the connecting plate 102. The side wall of the first sliding plate 201 is rotatably connected to multiple sets of first rotating shafts 202. The side wall of the first rotating shaft 202 is clamped with an upper roller 203, and the upper roller 203 is arranged as a whole at an angle.

[0037] The lower roller assembly 3 includes a second sliding plate 301, which is slidably mounted on the inner wall of the main plate 1. The side wall of the second sliding plate 301 is rotatably connected to multiple sets of second rotating shafts 302. The side wall of the second rotating shaft 302 is clamped with a lower roller 303, and the lower roller 303 is flush with the surface of the main plate 1.

[0038] It is worth noting that sliding the first sliding plate 201 and the second sliding plate 301 at the same time can adjust the positions of the upper roller 203 and the lower roller 303, which is convenient for bending the metal sheet at different positions. The telescopic cylinder 101 is used to drive the upper roller 203 to slide down, and the upper roller 203 will press the metal sheet into the inner cavity of the lower roller 303 for bending. Since the upper roller 203 is set to an inclined shape as a whole, the metal sheet will slowly deform to the required bending angle during the bending process, avoiding excessive deformation of the metal sheet and causing cracking.

[0039] The side walls of the first sliding plate 201 and the second sliding plate 301 are both fixedly connected to the first servo motor 204, and the output ends of the two groups of first servo motors 204 are fixedly connected to the first rotating shaft 202 and the second rotating shaft 302 respectively;

[0040] Sprockets 205 are fixedly connected to the side walls of the first rotating shaft 202 and the second rotating shaft 302 , and tracks 206 are rotatably connected between the two sets of sprockets 205 .

[0041] It is worth noting that the two sets of first servo motors 204 drive the first rotating shaft 202 and the second rotating shaft 302 to rotate respectively. Since the tracks 206 rotate between the sprockets 205 on the side walls of the first rotating shaft 202 and the second rotating shaft 302 respectively, the multiple sets of upper rollers 203 and lower rollers 303 rotate at the same time, pressing the metal sheet in the middle, which can not only achieve the bending effect, but also make the metal sheet automatically slide on the surface of the main board 1.

[0042] The first and second threaded columns 404 and 405 are rotatably connected on both sides of the inner wall of the main board 1. The side walls of the first and second threaded columns 404 and 405 are both threadedly connected to the connecting frame 403 which is the same as the side wall of the bidirectional threaded rod 402. The inner wall of the connecting frame 403 is rotatably connected to the rotating roller 406.

[0043] It is worth noting that the first threaded column 404 and the second threaded column 405 are rotated respectively, and the threaded connection between the first threaded column 404 and the second threaded column 405 and the connecting frame 403 is utilized to make the connecting frame 403 slide, and the rotating roller 406 on the inner wall of the connecting frame 403 is utilized to limit the bent metal sheet respectively, so as to prevent the metal sheet from rebounding due to its own elastic force after bending, resulting in deviation in its bending angle.

[0044] The side walls of the main board 1 and the connecting plate 102 are both fixedly connected to the third servo motor 5. The output end of the third servo motor 5 is fixedly connected to a third threaded column 501. Two groups of third threaded columns 501 are respectively threadedly connected to the first sliding plate 201 and the second sliding plate 301.

[0045] The side walls of the first threaded column 404 and the second threaded column 405 are both threadedly connected with nuts, which are used to fix the first threaded column 404 and the second threaded column 405. The top of the mounting frame is fixedly connected to the limiting column 505, and the limiting column 505 passes through the fixing frame 502.

[0046] It is worth noting that the third servo motor 5 is driven to drive the third threaded column 501 to rotate, and two groups of third threaded columns 501 are respectively threadedly connected to the first sliding plate 201 and the second sliding plate 301, so that the first sliding plate 201 and the second sliding plate 301 slide on the side wall of the third threaded column 501, and then the position of the upper roller 203 and the lower roller 303 is adjusted to facilitate bending of the metal sheet at different positions, wherein the nut is used to fix the first threaded column 404 and the second threaded column 405, and the limit column 505 can prevent the mounting frame from rotating with the threaded bolt 503.

[0047] Operation method: After placing the metal plate on the surface of the main board 1, rotate the bidirectional threaded rod 402, and use the threaded connection between the bidirectional threaded rod 402 and the connecting frame 403 to move the connecting frame 403 toward the middle until the connecting frame 403 clamps the metal plate in the middle. Then rotate the threaded bolt 503, so that the threaded bolt 503 drives the mounting frame to slide down, and use the pressure roller 504 on the inner wall of the mounting frame to press the metal plate to position the metal plate;

[0048] The third servo motor 5 is driven to rotate the third threaded column 501. The two sets of third threaded columns 501 are threadedly connected to the first sliding plate 201 and the second sliding plate 301 respectively, so that the first sliding plate 201 and the second sliding plate 301 slide on the side walls of the third threaded columns 501, thereby adjusting the positions of the upper roller 203 and the lower roller 303, so as to facilitate bending of different positions of the metal sheet;

[0049] The two first servo motors 204 drive the first rotating shaft 202 and the second rotating shaft 302 to rotate respectively, providing power for the upper roller 203 and the lower roller 303 to rotate. The telescopic cylinder 101 drives the upper roller 203 to slide downward, and the upper roller 203 presses the metal sheet into the inner cavity of the lower roller 303 to bend it. Since the upper roller 203 is arranged as a whole in an inclined shape, the metal sheet will slowly deform to the required bending angle during the bending process, preventing the metal sheet from being deformed too much and causing cracks.

[0050] At the discharge point after the metal sheet is bent, the first threaded column 404 and the second threaded column 405 are rotated respectively, and the threaded connection between the first threaded column 404 and the second threaded column 405 and the connecting frame 403 is utilized to make the connecting frame 403 slide, and the rotating roller 406 on the inner wall of the connecting frame 403 is utilized to limit the bent metal sheet respectively, to prevent the metal sheet from rebounding due to its own elastic force after bending, resulting in deviation in its bending angle.

[0051] Finally, it should be noted that the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures can refer to general designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A rolling type CNC bending device, comprising a main board (1), characterized in that: The top of the main board (1) is fixedly connected to a plurality of telescopic cylinders (101), the top of the telescopic cylinder (101) is fixedly connected to a connecting plate (102), the bottom of the connecting plate (102) is slidably mounted with an upper roller assembly (2), the inner wall of the main board (1) is slidably mounted with a lower roller assembly (3), the upper roller assembly (2) and the lower roller assembly (3) are used for bending the metal plate, the inner wall of the main board (1) is slidably mounted with a positioning assembly (4), and the positioning assembly (4) is used for positioning the metal plate; The upper roller assembly (2) comprises a first sliding plate (201), the first sliding plate (201) is slidably mounted below the connecting plate (102), the side wall of the first sliding plate (201) is rotatably connected to a plurality of first rotating shafts (202), the side wall of the first rotating shaft (202) is clamped with an upper roller (203), and the upper roller (203) is arranged as a whole in an inclined manner; The lower rolling assembly (3) comprises a second sliding plate (301), the second sliding plate (301) being slidably mounted on the inner wall of the main board (1), the side wall of the second sliding plate (301) being rotatably connected to a plurality of second rotating shafts (302), the side wall of the second rotating shaft (302) being clamped with a lower roller (303), and the lower roller (303) being flush with the surface of the main board (1).

2. The rolling CNC bending device according to claim 1, characterized in that: The side walls of the first sliding plate (201) and the second sliding plate (301) are both fixedly connected to a first servo motor (204), and the output ends of the two groups of first servo motors (204) are fixedly connected to the first rotating shaft (202) and the second rotating shaft (302), respectively.

3. The rolling CNC bending device according to claim 1, characterized in that: The side walls of the first rotating shaft (202) and the second rotating shaft (302) are both fixedly connected with sprockets (205), and crawler belts (206) are respectively rotatably connected between the two sets of sprockets (205).

4. The rolling type CNC bending device according to claim 1, characterized in that: The positioning assembly (4) comprises a second servo motor (401), the second servo motor (401) being fixedly mounted on a side wall of the main board (1), the output end of the second servo motor (401) being fixedly connected to a bidirectional threaded rod (402), and both side walls of the bidirectional threaded rod (402) being threadedly connected to a connecting frame (403).

5. The rolling type CNC bending device according to claim 1, characterized in that: The first threaded column (404) and the second threaded column (405) are rotatably connected to the inner wall of the main board (1) on both sides, and the side walls of the first threaded column (404) and the second threaded column (405) are both threadedly connected to a connecting frame (403) that is the same as the side wall of the bidirectional threaded rod (402), and the inner wall of the connecting frame (403) is rotatably connected to a rotating roller (406).

6. The rolling type CNC bending device according to claim 5, characterized in that: The side walls of the main board (1) and the connecting plate (102) are both fixedly connected to a third servo motor (5); an output end of the third servo motor (5) is fixedly connected to a third threaded column (501); and two groups of third threaded columns (501) are respectively threadedly connected to the first sliding plate (201) and the second sliding plate (301).

7. The rolling type CNC bending device according to claim 6, characterized in that: The top of the mainboard (1) is fixedly connected to a fixing frame (502), the top of the fixing frame (502) is threadedly connected to a threaded bolt (503), the bottom end of the threaded bolt (503) is rotatably connected to a mounting frame, and the inner wall of the mounting frame is rotatably connected to a pressure roller (504).

8. The rolling type CNC bending device according to claim 7, characterized in that: The side walls of the first threaded column (404) and the second threaded column (405) are both threadedly connected with nuts, which are used to fix the first threaded column (404) and the second threaded column (405). The top of the mounting frame is fixedly connected to a limiting column (505), and the limiting column (505) passes through the fixing frame (502).

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