Numerical control roll bending machine for multi-arc roll bending

Abstract

The utility model relates to a numerical control roll bending machine for multi-arc roll bending, and belongs to the field of roll bending machines. The first roller assembly, the second roller assembly and the third roller assembly are sequentially arranged on the workbench at intervals in the length direction of the workbench; the fourth roller assembly comprises a swing driving part, the swing driving part is arranged on the lower surface of the workbench, a driving shaft of the swing driving part penetrates through the workbench and extends to the position above the workbench, a swing plate and a fourth fixed roller are sequentially fixed to the driving shaft of the swing driving part from bottom to top, and a fourth movable roller is arranged at the end, away from the driving shaft, of the swing plate; by means of the technical scheme, roll bending of various complex shapes can be conducted on a single profile on one device, the application range is widened, clamping and positioning operation is reduced, roll bending efficiency is improved, machining continuity is good, and machining quality is good.

Description

Technical Field

[0001] The utility model relates to the field of roll bending machines, in particular to a numerically controlled roll bending machine for multi-arc rolling. Background Art

[0002] A roll bender is a type of cold-bending equipment for metal profiles and is a commonly used bending machine for aluminum alloy profiles. Roll bender machines are divided into three-roller roll benders, four-roller roll benders and six-roller roll benders according to the roller axis. Among them, the six-roller roll bender is widely used because it can bend profiles in both directions. For example, the six-roller profile bender disclosed in patent CN202096298U mainly includes a base frame, three fixed rollers, and three adjustable rollers, which correspond to each other in twos to form three groups. By adjusting the movement of different groups, bending in different directions can be achieved. The six-roller profile bender can achieve the purpose of simultaneous bidirectional bending and make up for the shortcomings of the existing three-roller roll bender. At present, in order to accurately measure the feed amount, the existing six-roller roll bender replaces one of the fixed rollers with a roller with a measuring function. Although this type of six-roller rolling machine can roll profiles in two directions, the rolled shape is generally an arc, and the rolled shape is relatively simple. However, with the current pursuit of profile diversification, artistry, and complexity, higher requirements are placed on the rolling of profiles. For example, after rolling the same profile to a certain arc, the profile is vertically bent or U-shaped, and finally the profile is rolled to a certain arc or vertically bent or U-shaped again. For such complex rolling, the existing technology generally completes the arc processing on a six-roller rolling machine, and then re-clamps it on other rolling machines to complete the processing of other rolling shapes. This is not only inefficient, but also has poor processing continuity and it is difficult to guarantee the processing quality. Utility Model Content

[0003] The existing roll bending machine can only bend a single profile into a single shape. When the rolling is complex and multiple roll bending shapes need to be processed on a single profile, the existing roll bending machine needs to be completed on multiple roll bending machines. This is not only inefficient, but also has poor processing continuity and difficult to ensure processing quality. At least one purpose or one aspect of the present application can solve the above problems. Specifically, a CNC roll bending machine for multi-arc rolling is designed, and the technical solution adopted is:

[0004] A CNC roll bending machine for multi-arc roll bending, comprising:

[0005] Workbench;

[0006] The first roller assembly, the second roller assembly and the third roller assembly are sequentially arranged on the workbench at intervals along the length direction of the workbench;

[0007] The fourth roller assembly includes a swinging drive member, which is arranged on the lower surface of the workbench. The drive shaft of the swinging drive member passes through the workbench and extends above the workbench. A swing plate and a fourth fixed roller are fixed on the drive shaft of the swinging drive member from bottom to top in sequence. The swing plate is provided with a fourth movable roller at the end away from the drive shaft.

[0008] Preferably, the swing plate is provided with a fourth guide groove along its length direction, a sliding block is provided in the fourth guide groove, the fourth movable roller is slidably arranged in the fourth guide groove through the sliding block, and a fourth adjusting screw is provided between the swing plate and the sliding block for adjusting the distance between the fourth movable roller and the fourth fixed roller.

[0009] Preferably, the fourth movable roller is a grooved roller.

[0010] Preferably, the swing drive component includes a swing motor arranged on the lower surface of the workbench, the output shaft of the swing motor is connected to the first gear, the rotating shaft of the fourth movable roller extends to the bottom of the workbench and is connected to the second gear, the second gear is engaged with the first gear, and the diameter of the second gear is larger than the diameter of the first gear.

[0011] Preferably, the first roller assembly includes a first fixed roller, a first movable roller and a first motor. The first fixed roller is rotatably set on the workbench through the first fixed seat. The first fixed seat is provided with a first guide groove along the width direction of the workbench. A first guide block is provided in the first guide groove. The first fixed roller is rotatably set on the first guide block. A first adjusting screw is connected between the first guide block and the first fixed seat. The first motor is set below the workbench. The output shaft of the first motor extends above the workbench and is connected to the first movable roller.

[0012] Preferably, the workbench is provided with a second guide groove along its length direction, a second guide block is provided in the second guide groove, the first motor is provided on the second guide block, and a second adjusting screw is connected between the second guide block and the workbench.

[0013] Preferably, the second roller assembly includes a tensioning wheel, a second movable roller and a second motor. The workbench is provided with a third guide groove along its width direction, a third guide block is provided in the third guide groove, the second motor is arranged on the third guide block, and a first telescopic cylinder is connected between the third guide block and the workbench. The tensioning wheel is rotatably arranged at one end of the sliding plate, and the sliding plate is slidably arranged along the width direction of the workbench. A second telescopic cylinder is connected between the sliding plate and the workbench, a first synchronous wheel is connected to the rotating shaft of the tensioning wheel, and a second synchronous wheel is rotatably provided at the other end of the sliding plate, a synchronous belt is connected between the first synchronous wheel and the second synchronous wheel, and an encoder is connected to the rotating shaft of the second synchronous wheel.

[0014] Preferably, the third roller assembly includes a third fixed roller, a third movable roller and a third motor. The third fixed roller is rotatably arranged on the workbench, the third motor is arranged on the lower surface of the workbench, and the output shaft of the third motor extends above the workbench and is connected to the third movable roller.

[0015] Preferably, the workbench is provided with a fifth guide groove along its length direction, a fifth guide block is provided in the fifth guide groove, the third motor is provided on the fifth guide block, and a third adjusting screw is connected between the fifth guide block and the workbench.

[0016] Preferably, the third fixed roller is rotatably arranged on the workbench through the third fixed seat, the third fixed seat is provided with a sixth guide groove along the width direction of the workbench, a sixth guide block is provided in the sixth guide groove, and a fifth adjusting screw is connected between the sixth guide block and the third fixed seat.

[0017] Through the above technical solution, the utility model can roll a single profile into a variety of complex shapes on a single device, reduce clamping and positioning operations, and have high rolling efficiency. The profile can be rolled into an arc; the profile can also be rolled into an arc first and then the fourth roller assembly is used to perform vertical rolling (90° bending) or U-shaped rolling (180° bending) to form a variety of complex shapes. The profile can also be rolled into a quadrilateral with an arc or into a waist hole shape, etc., which expands the scope of use, has good processing continuity and good processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1-Figure 3 These are three-dimensional diagrams of the present invention from different viewing angles.

[0019] In the figure, 1, workbench, 2, first roller assembly, 3, second roller assembly, 4, third roller assembly, 5, fourth roller assembly.

[0020] 201, first fixed roller, 202, first guide block, 203, first guide groove, 204, first fixed seat, 205, first movable roller, 206, second guide block, 207, second guide groove, 208, first motor;

[0021] 301, third guide groove, 302, third guide block, 303, first telescopic cylinder, 304, second movable roller, 305, first synchronous pulley, 306, tensioning pulley, 307, second telescopic cylinder, 308, second motor;

[0022] 401. Third movable roller, 402. Third fixed roller, 403. Fifth guide block, 404. Third fixed seat, 405. Fifth guide groove, 406. Fifth adjusting screw, 407. Third motor.

[0023] 501. Fourth fixed roller, 502. Swinging plate, 503. Fourth movable roller, 504. Sliding block, 505. Fourth guide groove, 506. Fourth adjusting screw, 507. Swinging motor, 508. Second gear, 509. First gear. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figure 1-3 As shown, a CNC rolling bending machine for multi-arc rolling includes a workbench 1, which is rectangular in shape and is used to provide support and installation position.

[0027] The first roller assembly 2 , the second roller assembly 3 and the third roller assembly 4 are arranged on the workbench 1 and are sequentially spaced apart along the length direction of the workbench 1 .

[0028] It also includes a fourth roller assembly 5, which mainly includes a swinging drive member. The swinging drive member is arranged on the lower surface of the workbench 1. The driving shaft of the swinging drive member passes through the workbench 1 and extends above the workbench 1. The driving shaft of the swinging drive member is fixed with a swinging plate 502 and a fourth fixed roller 501 from bottom to top. The swinging plate 502 is provided with a fourth movable roller 503 at the end away from the driving shaft. The swinging drive member drives the swinging plate 502 to rotate around the driving shaft of the swinging drive member. The angle of the profile rolling is achieved by controlling the rotation angle. When it is rotated 90°, the profile is rolled 90°. When it is rotated 180 degrees, the profile is rolled 180°. In conjunction with the first roller assembly 2, the second roller assembly 3 and the third roller assembly 4, the above-mentioned rolling can be performed after the profile is rolled into a certain arc, thereby forming profiles with various shapes.

[0029] Furthermore, the above-mentioned swing plate 502 is provided with a fourth guide groove 505 along its length direction, and a sliding block 504 is provided in the fourth guide groove 505. The fourth movable roller 503 is slidably set in the fourth guide groove 505 through the sliding block 504. A fourth adjusting screw 506 is provided between the swing plate 502 and the sliding block 504. By rotating the fourth adjusting screw 506, the distance between the fourth movable roller 503 and the fourth fixed roller 501 is adjusted to adapt to different profile sizes.

[0030] Furthermore, in order to prevent the profile from moving in the up and down directions during the rotation of the swing plate 502, which would cause deformation during the rolling process, the fourth movable roller 503 is a grooved roller, in which the profile is stuck, limiting the profile from moving in the up and down directions.

[0031] Furthermore, the structure of the above-mentioned swing driving component specifically includes a swing motor 507 arranged on the lower surface of the workbench 1, the output shaft of the swing motor 507 is connected to the first gear 509, the rotating shaft of the fourth movable roller 503 extends to the bottom of the workbench 1 and is connected to the second gear 508, the second gear 508 is engaged with the first gear 509, the diameter of the second gear 508 is larger than the diameter of the first gear 509, the swing motor 507 is decelerated through the first gear 509 and the second gear 508, and then drives the swing plate 502 to rotate, and the change of the rolling angle is achieved by controlling the rotation angle of the swing motor 507.

[0032] Furthermore, the specific structure of the first roller assembly 2 includes a first fixed roller 201, a first movable roller 205 and a first motor 208. The first fixed roller 201 is rotatably set on the workbench 1 through the first fixed seat 204. The first fixed seat 204 is fixed to the upper surface of the workbench 1 by screws. The first fixed seat 204 is provided with a first guide groove 203 along the width direction of the workbench 1. A first guide block 202 is provided in the first guide groove 203. The first fixed roller 201 is rotatably set on the first guide block 202. A first adjusting screw is connected between the first guide block 202 and the first fixed seat 204. The first adjusting screw is turned to adjust the distance between the first fixed roller 201 and the first movable roller 205 to adapt to the clamping and conveying of different types of profiles. The first motor 208 is set below the workbench 1. The output shaft of the first motor 208 extends above the workbench 1 and is connected to the first movable roller 205. The first motor 208 drives the first movable roller 205 to rotate, cooperating with the first fixed roller 201 to clamp and convey the profile.

[0033] Furthermore, in order to expand the scope of use and enable the rolling machine to roll the profile into different arc sizes when cooperating with the second roller assembly 3 and the third roller assembly 4 to convey and roll the profile, a second guide groove 207 is provided along the length direction of the workbench 1, and a second guide block 206 is provided in the second guide groove 207. The first motor 208 is arranged on the second guide block 206. A second adjusting screw is connected between the second guide block 206 and the workbench 1. The second adjusting screw is rotated to adjust the distance between the second movable roller 304 and the second roller assembly 3 and the third roller assembly 4.

[0034] Furthermore, the structure of the second roller assembly 3 specifically includes a tensioning wheel 306, a second movable roller 304 and a second motor 308. The workbench 1 is provided with a third guide groove 301 along its width direction. A third guide block 302 is provided in the third guide groove 301. The second motor 308 is provided on the third guide block 302. A first telescopic cylinder 303 is connected between the third guide block 302 and the workbench 1. The tensioning wheel 306 is rotatably provided on one end of the sliding plate. The sliding plate is slidably provided along the width direction of the workbench 1. The sliding plate is connected to the workbench 1. It is connected to the second telescopic cylinder 307, and the first synchronous wheel 305 is connected to the rotating shaft of the tensioning wheel 306. The other end of the sliding plate is rotatably provided with a second synchronous wheel (not marked due to viewing angle reasons). A synchronous belt is connected between the first synchronous wheel 305 and the second synchronous wheel (not marked due to viewing angle reasons). An encoder is connected to the rotating shaft of the second synchronous wheel. The encoder measures the feed length of the profile by detecting the number of rotations of the synchronous wheel. The feed length of the profile is measured to determine when to move the second movable roller 304 for rolling and bending, so that the rolling and bending are more precise.

[0035] Furthermore, the third roller assembly 4 specifically comprises a third fixed roller 402, a third movable roller 401, and a third motor 407. The third fixed roller 402 is rotatably mounted on the workbench 1, while the third motor 407 is mounted on the bottom surface of the workbench 1. The output shaft of the third motor 407 extends above the workbench 1 and is connected to the third movable roller 401. The first fixed roller 201 and the first movable roller 205 form a set, the second movable roller 304 and the tensioning roller 306 form a set, and the third movable roller 401 and the third fixed roller 402 form a set. The profile is conveyed using a three-point clamping mechanism, and the profile can be curved by changing the position of the second movable roller 304. In conjunction with the fourth fixed roller 501 and the fourth movable roller 503, the profile can be rolled into a variety of desired shapes, including a curved quadrilateral, a U-shape, a waist-shaped hole, and so on. Of course, the profile can also be rolled into a certain arc shape by using the second movable roller 304 and then continuously rolled into various special shapes by using the fourth movable roller 503 .

[0036] Furthermore, similarly, in order to cooperate with the first roller assembly 2 and the second roller assembly 3 to convey and bend the profiles into arcs of different sizes, a fifth guide groove 405 is provided along the length direction of the workbench 1, and a fifth guide block 403 is provided in the fifth guide groove 405. The third motor 407 is arranged on the fifth guide block 403, and a third adjusting screw is connected between the fifth guide block 403 and the workbench 1. By twisting the third adjusting screw, the distance between the third roller assembly 4 and the first roller assembly 2 and the second roller assembly 3 is adjusted, thereby achieving the purpose of bending profiles of different arc sizes and expanding the scope of use.

[0037] Furthermore, similarly, in order to meet the rolling requirements of different types of profiles, the third fixed roller 402 is rotatably set on the workbench 1 through the third fixed seat 404, and the third fixed seat 404 is provided with a sixth guide groove (not marked due to viewing angle reasons) along the width direction of the workbench 1, and a sixth guide block (not marked due to viewing angle reasons) is provided in the sixth guide groove, and a fifth adjusting screw 406 is connected between the sixth guide block and the third fixed seat 404. Turning the fifth adjusting screw 406 can adjust the distance between the third fixed roller 402 and the third movable roller 401, thereby meeting the requirements for clamping and conveying profiles when the width of the profiles is different.

[0038] The above specific implementation methods cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or transformation made to the implementation methods of the present utility model falls within the protection scope of the present utility model.

[0039] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. A CNC roll bending machine for multi-arc rolling, characterized in that: include: Workbench; A first roller assembly, a second roller assembly and a third roller assembly are sequentially spaced apart on the workbench along the length direction of the workbench; The fourth roller assembly includes a swinging drive member, which is arranged on the lower surface of the workbench. The drive shaft of the swinging drive member passes through the workbench and extends above the workbench. A swing plate and a fourth fixed roller are fixed on the drive shaft of the swinging drive member from bottom to top. The swing plate is provided with a fourth movable roller at the end away from the drive shaft.

2. A CNC roll bending machine for multi-arc rolling according to claim 1, characterized in that: The swing plate is provided with a fourth guide groove along its length direction, a sliding block is provided in the fourth guide groove, the fourth movable roller is slidably arranged in the fourth guide groove through the sliding block, and a fourth adjusting screw is provided between the swing plate and the sliding block for adjusting the distance between the fourth movable roller and the fourth fixed roller.

3. The CNC roll bending machine for multi-arc rolling according to claim 2, characterized in that: The fourth movable roller is a grooved roller.

4. A CNC roll bending machine for multi-arc rolling according to claim 1, 2 or 3, characterized in that: The swing driving component includes a swing motor arranged on the lower surface of the workbench, the output shaft of the swing motor is connected to a first gear, the rotating shaft of the fourth movable roller extends to the bottom of the workbench and is connected to a second gear, the second gear is engaged with the first gear, and the diameter of the second gear is larger than the diameter of the first gear.

5. The CNC roll bending machine for multi-arc rolling according to claim 1, characterized in that: The first roller assembly includes a first fixed roller, a first movable roller and a first motor. The first fixed roller is rotatably set on the workbench through a first fixed seat. The first fixed seat is provided with a first guide groove along the width direction of the workbench. A first guide block is provided in the first guide groove. The first fixed roller is rotatably set on the first guide block. A first adjusting screw is connected between the first guide block and the first fixed seat. The first motor is arranged below the workbench. The output shaft of the first motor extends above the workbench and is connected to the first movable roller.

6. The CNC roll bending machine for multi-arc rolling according to claim 5, characterized in that: The workbench is provided with a second guide groove along its length direction, a second guide block is provided in the second guide groove, the first motor is arranged on the second guide block, and a second adjusting screw is connected between the second guide block and the workbench.

7. The CNC roll bending machine for multi-arc rolling according to claim 1, characterized in that: The second roller assembly includes a tensioning wheel, a second movable roller and a second motor. The workbench is provided with a third guide groove along its width direction, a third guide block is provided in the third guide groove, the second motor is arranged on the third guide block, and a first telescopic cylinder is connected between the third guide block and the workbench. The tensioning wheel is rotatably arranged at one end of the sliding plate, and the sliding plate is slidably arranged along the width direction of the workbench. A second telescopic cylinder is connected between the sliding plate and the workbench, a first synchronous wheel is connected to the rotating shaft of the tensioning wheel, and a second synchronous wheel is rotatably provided at the other end of the sliding plate, a synchronous belt is connected between the first synchronous wheel and the second synchronous wheel, and an encoder is connected to the rotating shaft of the second synchronous wheel.

8. The CNC roll bending machine for multi-arc rolling according to claim 1, characterized in that: The third roller assembly includes a third fixed roller, a third movable roller and a third motor. The third fixed roller is rotatably arranged on the workbench, the third motor is arranged on the lower surface of the workbench, and the output shaft of the third motor extends above the workbench and is connected to the third movable roller.

9. The CNC roll bending machine for multi-arc rolling according to claim 8, characterized in that: The workbench is provided with a fifth guide groove along its length direction, a fifth guide block is provided in the fifth guide groove, the third motor is provided on the fifth guide block, and a third adjusting screw is connected between the fifth guide block and the workbench.

10. A CNC roll bending machine for multi-arc rolling according to claim 8 or 9, characterized in that: The third fixed roller is rotatably arranged on the workbench through a third fixed seat. The third fixed seat is provided with a sixth guide groove along the width direction of the workbench. A sixth guide block is provided in the sixth guide groove. A fifth adjusting screw is connected between the sixth guide block and the third fixed seat.

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