An integrated bending forming device for sheet metal

Abstract

The application relates to the technical field of metal plate processing, in particular to an integrated bending forming equipment for metal plates, which comprises a support, a main roller, an auxiliary roller and two adjusting pieces. The main roller is installed on the support. The auxiliary roller is located above the main roller and is engaged with the main roller. The adjusting pieces comprise an inner roller and an outer roller. The inner roller can be engaged with the auxiliary roller, can rotate around the central axis of the auxiliary roller and can be movably arranged along the radial direction of the auxiliary roller. The outer roller is engaged with the inner roller. The integrated bending forming equipment for metal plates can define the bending track of the metal plate by adjusting the positions of the inner roller and the outer roller, can complete the processing of metal plates with different diameters, does not need to disassemble or replace core components, simplifies the operation process, reduces the production preparation time and improves the processing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal plate processing, and particularly relates to an integrated bending forming equipment for metal plates. BACKGROUND

[0002] Bending forming of metal plates is a key link in processing cylindrical metal parts, and a coiling machine is a core equipment for realizing this link. Among them, a double-roller coiling machine is widely used in the industry due to the advantages of convenient feeding and taking, and realizing continuous production. The double-roller coiling machine applies pressure through an upper roller, and cooperates with the flexible surface of a lower roller to make the bottom surface of the metal plate deform, so as to bend and form the plate. After presetting parameters such as pressure value and coiling speed of the equipment, a cylindrical workpiece with a specific diameter can be stably processed.

[0003] However, the traditional double-roller coiling machine has obvious limitations. Since the size of the same pressure roller is fixed, it cannot adapt to the processing requirements of pipe products with large diameter differences. If different diameter pipes are to be processed, the entire equipment or the entire pressure roller mechanism needs to be replaced, which not only increases the equipment investment cost, but also leads to low utilization efficiency of the pressure roller. Moreover, frequent replacement operations also prolong the production preparation time and affect the processing efficiency.

[0004] Chinese patent CN214683645U discloses a metal plate coiling machine, which sets an auxiliary plate and an auxiliary roller on the top of a fixed plate, and sets a coiling cylinder outside the metal roller and the auxiliary roller. The position of the auxiliary roller is adjusted by a rotating adjusting hand wheel, so that different diameter pipe products can be produced on the same equipment, and the utilization efficiency of the pressure roller is improved. However, this scheme needs to replace the coiling cylinder with the corresponding size according to the product diameter requirement every time different diameter products are processed, which requires the pre-stocking of multiple sizes of coiling cylinders, increases the production cost, and the process of replacing the coiling cylinder is relatively cumbersome, reduces the processing efficiency, and cannot meet the flexible and efficient production requirements. SUMMARY

[0005] The present application provides an integrated bending forming equipment for metal plates to solve the problem that the existing integrated bending forming equipment for metal plates has obvious limitations when processing cylindrical metal parts with different diameters.

[0006] The metal plate integrated bending forming equipment adopts the following technical scheme: a metal plate integrated bending forming equipment, comprising a support, a main roller, an auxiliary roller and two adjusting members; the main roller is arranged in a horizontal direction and is rotatably mounted on the support about its own axis, and the arrangement direction of the main roller is referred to as a first direction; the auxiliary roller is arranged on the support in the first direction, and the auxiliary roller is located above the main roller and is engaged with the main roller, and the engagement line of the auxiliary roller and the main roller is referred to as a main tangent line; the two adjusting members are arranged face to face on both sides of the auxiliary roller in a second direction, and the second direction is a horizontal direction perpendicular to the first direction; the adjusting member comprises an inner roller and an outer roller; the inner roller is arranged in the first direction and can be engaged with the auxiliary roller, and the engagement line of the inner roller and the auxiliary roller is referred to as an inner tangent line; the inner roller can rotate about the central axis of the auxiliary roller and can be movably arranged in the radial direction of the auxiliary roller; the outer roller is arranged in the first direction and is engaged with the inner roller; the main tangent line, the outer roller and the inner roller are sequentially arranged in the circumferential direction of the auxiliary roller, and the outer roller can rotate with the inner roller about the central axis of the auxiliary roller and can move with the inner roller in the radial direction of the auxiliary roller. The metal plate integrated bending forming equipment has a first state and a second state, when in the first state, the metal plate is tangent to the main tangent line and the two inner tangent lines at the same time; when in the second state, the metal plate is tangent to the main tangent line and the two outer rollers at the same time, and the point where the metal plate is tangent to the outer roller is referred to as an outer tangent line, and the outer tangent line is located on the side of the outer roller away from the central axis of the auxiliary roller in the radial direction of the auxiliary roller.

[0007] Further, the adjusting member further comprises an adjusting ring and a synchronous rod; the adjusting ring is coaxial with the auxiliary roller and is in rotational cooperation with the auxiliary roller, and the adjusting ring is rotatably arranged about its own axis; the synchronous rod is arranged in the radial direction of the auxiliary roller, and the synchronous rod connects the adjusting ring and the inner roller.

[0008] Further, a transmission member is further included, and the transmission member is used to drive the adjusting rings of the two adjusting members to rotate about their own axes respectively.

[0009] Further, the diameter of the inner roller is greater than the diameter of the outer roller, the inner roller and the outer roller are connected through a connecting rod, and the connecting rod is arranged perpendicularly to the synchronous rod.

[0010] Further, the inner roller is in rotational cooperation with the synchronous rod, and the outer roller is in rotational cooperation with the connecting rod.

[0011] Further, the synchronous rod is a spring telescopic rod.

[0012] Further, the synchronous rod comprises a coaxial telescopic cylinder and a telescopic rod, the telescopic cylinder and the telescopic rod are both arranged in the radial direction of the auxiliary roller, the telescopic cylinder and the telescopic rod are connected through a first elastic member, and the first elastic member is arranged in the axial direction of the telescopic cylinder.

[0013] Further, the telescopic cylinder is screwed with a screw rod, the screw rod is arranged along the radial direction of the secondary roller, and in the initial state, the screw rod is spaced apart from one end of the telescopic rod in the radial direction of the secondary roller, and moving the telescopic cylinder along the radial direction of the secondary roller to the side away from the central axis of the secondary roller can make the screw rod abut against one end of the telescopic rod in the telescopic cylinder.

[0014] Further, the inner roller is uniformly provided with a plurality of elastic rods along the circumferential direction thereof, the elastic rods are arranged along the radial direction of the inner roller, and the elastic rods are connected with the inner roller through second elastic members, and the second elastic members are arranged along the radial direction of the inner roller.

[0015] Further, the diameter of the secondary roller is smaller than that of the primary roller, the material of the secondary roller is steel, and the material of the primary roller is polyurethane rubber.

[0016] The beneficial effects of the present application are: the metal plate integrated bending forming equipment sets up the support, the primary roller, the secondary roller and the two adjusting members, adjusts the positions of the inner roller and the outer roller to limit the bending trajectory of the metal plate, processes the metal plates with different diameters, does not need to disassemble or replace the core components, simplifies the operation process, reduces the production preparation time, and improves the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is a schematic view of the overall structure of the embodiment of the metal plate integrated bending forming equipment of the present application.

[0019] Figure 2 It is a front view of the overall structure of the embodiment of the metal plate integrated bending forming equipment of the present application.

[0020] Figure 3 It is Figure 2 the sectional view along A-A.

[0021] Figure 4 It is Figure 3 the enlarged view of C.

[0022] Figure 5 It is Figure 2 the sectional view along B-B.

[0023] Figure 6 It is Figure 5 the enlarged view of D.

[0024] Figure 7 This is a schematic diagram of a partial structure of an embodiment of an integrated bending and forming equipment for metal sheets according to the present invention;

[0025] Figure 8 for Figure 7 Enlarged view at point E in the middle;

[0026] Figure 9 This is a schematic diagram of the inner roller structure of an embodiment of an integrated bending and forming equipment for metal sheets according to the present invention;

[0027] Figure 10 for Figure 9 Sectional view at the center FF;

[0028] Figure 11 This is a state diagram showing an embodiment of an integrated bending and forming device for metal sheets according to the present invention in its first state.

[0029] Figure 12 This is a state diagram showing the second state of an embodiment of an integral bending and forming device for metal sheets according to the present invention.

[0030] In the diagram: 100, bracket; 110, first motor; 120, reducer; 200, main roller; 210, main tangent; 300, auxiliary roller; 400, adjusting component; 410, inner roller; 411, spring rod; 412, second elastic component; 420, outer roller; 430, inner tangent; 440, outer tangent; 450, adjusting ring; 451, mating gear; 460, synchronizing rod; 461, telescopic cylinder; 462, telescopic rod; 463, first elastic component; 464, screw; 470, connecting rod; 500, transmission component; 501, driving gear; 502, driven gear; 503, first gear; 504, second gear; 600, metal sheet. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] An embodiment of the integrated bending and forming equipment for metal sheets according to the present invention is as follows: Figures 1 to 12 As shown.

[0033] The application discloses a one-piece bending forming device for a metal plate, which comprises a support 100, a main roller 200, an auxiliary roller 300 and two adjusting members 400.

[0034] The two adjusting members 400 are arranged face to face on two sides of the auxiliary roller 300 along a second direction, and the second direction is horizontal and perpendicular to the first direction. The adjusting member 400 comprises an inner roller 410 and an outer roller 420. The inner roller 410 is arranged along the first direction and can be engaged with the auxiliary roller 300, and the engagement line of the inner roller 410 and the auxiliary roller 300 is referred to as an inner tangent line 430. The inner roller 410 can rotate around the central axis of the auxiliary roller 300 and is arranged to be movable along the radial direction of the auxiliary roller 300. The outer roller 420 is arranged along the first direction and is engaged with the inner roller 410. The main tangent line 210, the outer roller 420 and the inner roller 410 are sequentially arranged in the circumferential direction of the auxiliary roller 300, and the outer roller 420 can rotate around the central axis of the auxiliary roller 300 with the inner roller 410 and can move along the radial direction of the auxiliary roller 300 with the inner roller 410.

[0035] The one-piece bending forming device for the metal plate has a first state and a second state. In the first state, the metal plate 600 is tangent to the main tangent line 210 and the two inner tangent lines 430 at the same time. In the second state, the metal plate 600 is tangent to the main tangent line 210 and the two outer rollers 420 at the same time. The point, at which the metal plate 600 is tangent to the outer roller 420, is referred to as an outer tangent line 440, and the outer tangent line 440 is located on the side, on which the outer roller 420 is away from the central axis of the auxiliary roller 300 in the radial direction of the auxiliary roller 300.

[0036] The same as the prior art is that the diameter of the auxiliary roller 300 is smaller than that of the main roller 200, the material of the auxiliary roller 300 is steel, and the material of the main roller 200 is polyurethane rubber. In use, the metal plate 600 is bent by the elastic deformation of the auxiliary roller 300.

[0037] Specifically, the support 100 is provided with a main driving member, and the main driving member is used for driving the main roller 200 to rotate around its own axis. The main driving member comprises a first motor 110, and the first motor 110 is connected with the main roller 200 through a speed reducer 120.

[0038] The embodiment can through the cooperation of the support 100, the main roller 200, the auxiliary roller 300 and the two adjusting members 400, limit the bending track of the metal plate 600 by adjusting the positions of the inner roller 410 and the outer roller 420, complete the processing of the metal plate 600 with different diameters, and do not need to disassemble or replace the core components, simplify the operation process, reduce the production preparation time, and improve the processing efficiency.

[0039] Specifically, in use, the inner roller 410 can be driven to rotate around the central axis of the auxiliary roller 300 according to the diameter of the metal plate 600 to be processed, and the rotation of the inner roller 410 around the central axis of the auxiliary roller 300 will drive the outer roller 420 to rotate synchronously, thereby changing the spacing of the inner roller 410 in the second direction in the two adjusting members 400 and the spacing of the outer roller 420 in the second direction in the two adjusting members 400.

[0040] When the spacing of the inner roller 410 in the second direction in the two adjusting members 400 is changed, when the integrated bending forming equipment of the metal plate is in the first state, referring to Figure 11 As shown, the operator sends the metal plate 600 from the left inner roller 410 and the internal tangent line 430 of the auxiliary roller 300, passes through the main tangent line 210 of the main roller 200 and the auxiliary roller 300, and then sends it out from the right inner roller 410 and the internal tangent line 430 of the auxiliary roller 300. At this time, the inner roller 410 will move in the radial direction of the auxiliary roller 300 according to the thickness of the metal plate 600, so that the spacing between the auxiliary roller 300 and the inner roller 410 is sufficient to allow the metal plate 600 to pass through, which can improve the use range of the integrated bending forming equipment of the metal plate.

[0041] At the same time, the main roller 200 drives the auxiliary roller 300 to rotate synchronously, at this time the metal plate 600 is tangent to the main tangent line 210 and the two internal tangent lines 430, and the bending diameter of the metal plate 600 is limited by the principle of "three points forming a circle", so that the metal plate 600 is continuously moved and formed by bending under the action of friction, and finally a cylindrical workpiece corresponding to the diameter is formed.

[0042] Similarly, when the spacing of the outer roller 420 in the second direction in the two adjusting members 400 is changed, when the integrated bending forming equipment of the metal plate is in the second state, referring to Figure 12 As shown, the operator sends the metal plate 600 from the left outer roller 420, and sends it out from the right outer roller 420 after passing through the main tangent line 210. At the same time, the main roller 200 rotates and drives the auxiliary roller 300 to rotate, at this time the metal plate 600 is tangent to the main tangent line 210 and the two external tangent lines 440, the metal plate 600 will run along the outer roller 420 and be continuously bent, and another range of bending diameters is limited by the principle of "three points forming a circle". Form a cylindrical workpiece that meets the requirements.

[0043] The diameter of the circle defined by adjusting the spacing of the inner rollers 410 of the two adjusting members 400 in the second direction is generally smaller than the diameter of the circle defined by adjusting the spacing of the outer rollers 420 of the two adjusting members 400 in the second direction. Therefore, when a small-diameter range of cylindrical workpieces needs to be processed, the one-piece bending and forming equipment of the metal plate can be in the first state. When a large-diameter range of cylindrical workpieces needs to be processed, the one-piece bending and forming equipment of the metal plate can be in the second state.

[0044] In a further embodiment, the adjusting member 400 further comprises an adjusting ring 450 and a synchronization rod 460. The adjusting ring 450 is coaxial with the secondary roller 300 and rotationally matched with the secondary roller 300, and the adjusting ring 450 is rotationally arranged about its own axis. The synchronization rod 460 is arranged in the radial direction of the secondary roller 300, and the synchronization rod 460 connects the adjusting ring 450 and the inner roller 410, and the inner roller 410 is rotationally matched with the synchronization rod 460, so that the inner roller 410 is rotationally arranged about its own axis.

[0045] By arranging the adjusting ring 450 and the synchronization rod 460, when the adjusting ring 450 rotates about its own axis, the adjusting ring 450 can drive the inner roller 410 to revolve about the central axis of the secondary roller 300 through the synchronization rod 460.

[0046] In a further embodiment, the one-piece bending and forming equipment of the metal plate further comprises a transmission member 500 for driving the adjusting rings 450 of the two adjusting members 400 to rotate about their own axes, respectively.

[0047] The transmission member 500 comprises a driving gear 501, a driven gear 502, a first gear 503, and a second gear 504. The central axes of the driving gear 501, the driven gear 502, the first gear 503, and the second gear 504 are arranged on the support 100 in the first direction. A second motor is arranged on the support 100, and the driving gear 501 is mounted on the output shaft of the second motor, so that the driving gear 501 can rotate about its own axis, and the driven gear 502 is engaged with the driving gear 501.

[0048] The adjusting rings 450 of the two adjusting members 400 are each provided with a matching gear 451, one of the matching gears 451 is engaged with the driving gear 501 through the first gear 503, and the other matching gear 451 is engaged with the driven gear 502 through the second gear 504. In the first direction, the first gear 503 is located on the side of the second gear 504 away from the secondary roller 300.

[0049] In this embodiment, the transmission member 500 is arranged, and the adjusting rings 450 of the two adjusting members 400 are arranged on the transmission member 500. Figure 8As shown, when the driving driving gear 501 rotates clockwise in use, the rotation of the driving gear 501 will drive the driven gear 502 to rotate counterclockwise, and the rotation of the driving gear 501 will drive the matching gear 451 on one of the adjusting rings 450 to rotate clockwise through the first gear 503; the rotation of the driven gear 502 will drive the matching gear 451 on the other adjusting ring 450 to rotate counterclockwise through the second gear 504, finally making the two adjusting rings 450 rotate, and the rotation directions of the two adjusting rings 450 are opposite, so that when the adjusting ring 450 drives the inner roller 410 and the outer roller 420 to rotate synchronously through the synchronous rod 460, the two synchronous rods 460 move towards each other around the first direction. Conversely, when the driving driving gear 501 rotates counterclockwise, through a series of transmissions of the driving gear 501, the driven gear 502, the first gear 503, the second gear 504 and the matching gears 451 on the two adjusting rings 450, the two synchronous rods 460 will move away from each other around the first direction.

[0050] In further embodiments, the diameter of the inner roller 410 is greater than the diameter of the outer roller 420, and the inner roller 410 and the outer roller 420 are connected by a connecting rod 470, which is fixedly connected with the synchronous rod 460 and arranged perpendicular to each other, so that the outer roller 420 is located on the side of the inner roller 410 away from the center axis of the sub roller 300 in the radial direction of the sub roller 300. The outer roller 420 is rotationally connected with the connecting rod 470, so that the outer roller 420 can be rotationally arranged around its own axis.

[0051] By arranging the connecting rod 470, in use, the outer roller 420 can rotate around the center axis of the sub roller 300 with the inner roller 410 and can move along the radial direction of the sub roller 300 with the inner roller 410.

[0052] Referring to Figure 11 As shown, when the one-piece bending and forming equipment for metal plates is in the first state, if the sub roller 300 rotates counterclockwise to bend the metal plate 600, the engagement between the sub roller 300 and the inner roller 410 will fail, and the inner roller 410 will passively rotate counterclockwise, so that the rotation direction of the sub roller 300 is the same as that of the two inner rollers 410, and the outer roller 420 is driven to rotate clockwise.

[0053] Referring to Figure 12 As shown, when the one-piece bending and forming equipment for metal plates is in the second state, if the sub roller 300 rotates counterclockwise to bend the metal plate 600, the inner roller 410 engaged with the sub roller 300 will rotate clockwise, thereby driving the outer roller 420 to rotate counterclockwise, so that the rotation direction of the sub roller 300 is the same as that of the two outer rollers 420, thereby avoiding additional wear on the plate.

[0054] In further embodiments, the synchronous rod 460 is a spring telescopic rod.

[0055] The synchronous rod 460 comprises a telescopic cylinder 461 and a telescopic rod 462, both of which are arranged along the radial direction of the secondary roller 300, the telescopic cylinder 461 is connected with the telescopic rod 462 through a first elastic element 463, the first elastic element 463 is arranged along the axial direction of the telescopic cylinder 461, and the first elastic element 463 is a compression spring. One end of the telescopic cylinder 461 away from the telescopic rod 462 in the radial direction of the secondary roller 300 is connected with the inner roller 410, and one end of the telescopic rod 462 away from the telescopic cylinder 461 in the radial direction of the secondary roller 300 is connected with the adjusting ring 450.

[0056] In this embodiment, the synchronous rod 460 is set as a spring telescopic rod. When the metal plate 600 with different thicknesses passes between the secondary roller 300 and the inner roller 410, the metal plate 600 will drive the inner roller 410 to move along the radial direction of the secondary roller 300, and drive the telescopic cylinder 461 to move away from the telescopic rod 462, so that the distance between the secondary roller 300 and the inner roller 410 is sufficient to allow the metal plate 600 to pass.

[0057] Alternatively, in another possible embodiment, a screw rod 464 is screwed on the telescopic cylinder 461, the screw rod 464 is arranged along the radial direction of the secondary roller 300, and in the initial state, the screw rod 464 is spaced apart from one end of the telescopic rod 462 located in the telescopic cylinder 461 in the radial direction of the secondary roller 300, and the movement of the telescopic cylinder 461 away from the center axis of the secondary roller 300 in the radial direction of the secondary roller 300 can make the screw rod 464 abut against one end of the telescopic rod 462 located in the telescopic cylinder 461.

[0058] By further arranging the screw rod 464 on the basis of the previous embodiment, the maximum distance of the telescopic rod 462 and the telescopic cylinder 461 away from each other in the radial direction of the secondary roller 300 can be limited during use, that is, referring to FIG. 4B, at this time, the screw rod 464 abuts against one end of the telescopic rod 462 located in the telescopic cylinder 461, the inner roller 410 cannot continue to drive the telescopic cylinder 461 to move away from the center axis of the secondary roller 300 in the radial direction of the secondary roller 300, and the thickness of the metal plate 600 that can extend into the secondary roller 300 and the inner roller 410 reaches the maximum. Figure 6

[0059] In another possible embodiment, a plurality of elastic rods 411 are uniformly distributed on the inner roller 410 along the circumferential direction of the inner roller 410, the elastic rods 411 are arranged along the radial direction of the inner roller 410, the elastic rods 411 are connected with the inner roller 410 through a second elastic element 412, the second elastic element 412 is arranged along the radial direction of the inner roller 410, and the second elastic element 412 is a compression spring.

[0060] In this embodiment, a plurality of elastic rods 411 are arranged, referring to FIG. 4C, when the metal plate 600 with different thicknesses passes between the secondary roller 300 and the inner roller 410, the metal plate 600 will drive the inner roller 410 to move along the radial direction of the secondary roller 300, and drive the elastic rods 411 to move away from the center axis of the secondary roller 300 in the radial direction of the secondary roller 300. Figure 12 ​As shown, when the metal plate integrated bending forming device is in the second state, if the sub-roller 300 rotates counterclockwise to bend the metal plate 600, the inner roller 410 engaged with the sub-roller 300 will rotate clockwise, thereby driving the outer roller 420 to rotate counterclockwise. If the processed metal plate 600 rebounds severely, it will contact the reversely rotating inner roller 410, and the spring rod 411 protruding from the inner roller 410 will exert an outward and downward force on the rebounding metal plate 600 to push the metal plate 600 away, so that the metal plate 600 moves along the radial direction of the sub-roller 300 to the side away from the sub-roller 300, reducing the workload of manual adjustment by the operator.

[0061] In combination with the above embodiment, the specific working process is as follows:

[0062] In use, the inner roller 410 can be driven to rotate around the central axis of the sub-roller 300 according to the diameter of the metal plate 600 to be processed, and the rotation of the inner roller 410 around the central axis of the sub-roller 300 will drive the outer roller 420 to rotate synchronously, thereby changing the distance between the inner rollers 410 in the two adjusting members 400 in the second direction, and the distance between the outer rollers 420 in the two adjusting members 400 in the second direction. When a cylindrical workpiece with a small diameter range needs to be processed, the metal plate integrated bending forming device can be in the first state. When a cylindrical workpiece with a large diameter range needs to be processed, the metal plate integrated bending forming device can be in the second state.

[0063] Specifically, when the metal plate integrated bending forming device is in the first state, referring to Figure 11 As shown, the operator feeds the metal plate 600 from the left inner roller 410 and the internal tangent 430 of the sub-roller 300, passes through the main tangent 210 of the main roller 200 and the sub-roller 300, and then feeds it out from the right inner roller 410 and the internal tangent 430 of the sub-roller 300. At this time, the inner roller 410 will move in the radial direction of the sub-roller 300 according to the thickness of the metal plate 600, so that the distance between the sub-roller 300 and the inner roller 410 is sufficient to allow the metal plate 600 to pass through.

[0064] At the same time, the first motor 110 is started to drive the main roller 200 to rotate synchronously with the sub-roller 300, and the sub-roller 300 rotates according to the attached Figure 11When the two adjusting members 400 rotate in the second direction, the outer rollers 420 rotate in the second direction, and the inner rollers 410 rotate in the first direction, the metal plate 600 is tangent to the main tangent line 210 and the two inner tangent lines 430, and the metal plate 600 is continuously bent and formed into a cylindrical workpiece with a diameter determined by the "three-point circle" principle. It should be noted that when the operator feeds the metal plate 600 into the left inner roller 410 and the outer roller 420 and feeds the metal plate 600 out of the right inner roller 410 and the outer roller 420 after passing through the main tangent line 210, the metal plate 600 is located on the side of the center axis of the inner roller 410 close to the center axis of the outer roller 420 in the radial direction of the outer roller 420. This operation can make the metal plate 600 be brought into the inner tangent line 430 with the rotation of the inner roller 410 and the outer roller 420.

[0065] Similarly, when the spacing of the two adjusting members 400 changes in the second direction, when the one-piece bending and forming device for the metal plate is in the second state, as shown in FIG. 6B, the operator feeds the metal plate 600 into the left outer roller 420 and feeds the metal plate 600 out of the right outer roller 420 after passing through the main tangent line 210. Figure 12

[0066] At the same time, the main roller 200 rotates and drives the outer roller 420 to rotate, and the outer roller 420 rotates in the first direction according to the attached drawing. Figure 11 When the two adjusting members 400 rotate in the second direction, the outer rollers 420 rotate in the second direction, and the inner rollers 410 rotate in the first direction, the metal plate 600 is tangent to the main tangent line 210 and the two inner tangent lines 430, and the metal plate 600 is continuously bent and formed into a cylindrical workpiece with a diameter determined by the "three-point circle" principle. It should be noted that when the operator feeds the metal plate 600 into the left inner roller 410 and the outer roller 420 and feeds the metal plate 600 out of the right inner roller 410 and the outer roller 420 after passing through the main tangent line 210, the metal plate 600 is located on the side of the center axis of the inner roller 410 close to the center axis of the outer roller 420 in the radial direction of the outer roller 420. This operation can make the metal plate 600 be brought into the inner tangent line 430 with the rotation of the inner roller 410 and the outer roller 420.

[0067] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. An integrated bending forming apparatus for sheet metal, characterized by: The device comprises a support, a main roller, a secondary roller and two adjusting members; the main roller is arranged in a horizontal direction and rotatably mounted on the support, and the arrangement direction of the main roller is referred to as a first direction; The secondary roller is arranged in the first direction on the support, and the secondary roller is located above the main roller and engaged with the main roller, and the engagement line of the secondary roller and the main roller is referred to as a main tangent line; The two adjusting members are arranged face to face on both sides of the secondary roller in a second direction, and the second direction is a horizontal direction perpendicular to the first direction; the adjusting member comprises an inner roller and an outer roller; the inner roller is arranged in the first direction and can be engaged with the secondary roller, and the engagement line of the inner roller and the secondary roller is referred to as an inner tangent line; the inner roller can rotate around the central axis of the secondary roller and is movably arranged in the radial direction of the secondary roller; the outer roller is arranged in the first direction and engaged with the inner roller; The main tangent line, the outer roller and the inner roller are sequentially arranged in the circumferential direction of the secondary roller, and the outer roller can rotate around the central axis of the secondary roller with the inner roller and can move in the radial direction of the secondary roller with the inner roller; The integrated bending forming device of the metal plate has a first state and a second state; when in the first state, the metal plate is tangent to the main tangent line and the two inner tangent lines at the same time; when in the second state, the metal plate is tangent to the main tangent line and the two outer rollers at the same time, and the point where the metal plate is tangent to the outer roller is referred to as an outer tangent line, and the outer tangent line is located on the side of the outer roller away from the central axis of the secondary roller in the radial direction of the secondary roller; the adjusting member further comprises an adjusting ring and a synchronous rod; the adjusting ring is coaxial with the secondary roller and rotationally matched with the secondary roller, and the adjusting ring is rotatably arranged around its own axis; the synchronous rod is arranged in the radial direction of the secondary roller, and the synchronous rod connects the adjusting ring and the inner roller; the inner roller and the outer roller are connected by a connecting rod, and the connecting rod is arranged perpendicularly to the synchronous rod; the synchronous rod is a spring telescopic rod.

2. The apparatus according to claim 1, wherein: Further comprising a transmission member for driving the adjusting rings of the two adjusting members to rotate around their own axes respectively.

3. The apparatus according to claim 1, wherein: The diameter of the inner roller is greater than the diameter of the outer roller.

4. The apparatus according to claim 3, wherein: The inner roller is rotationally matched with the synchronous rod, and the outer roller is rotationally matched with the connecting rod.

5. The apparatus according to claim 1, wherein: The synchronous rod comprises a telescopic cylinder and a telescopic rod which are coaxial, and the telescopic cylinder and the telescopic rod are both arranged in the radial direction of the secondary roller; the telescopic cylinder and the telescopic rod are connected by a first elastic member, and the first elastic member is arranged axially along the telescopic cylinder.

6. The apparatus according to claim 5, wherein: A screw rod is screwed on the telescopic cylinder, and the screw rod is arranged in the radial direction of the secondary roller; in the initial state, a space is left between the screw rod and one end of the telescopic rod located inside the telescopic cylinder in the radial direction of the secondary roller, and moving the telescopic cylinder to the side away from the central axis of the secondary roller in the radial direction of the secondary roller can make the screw rod abut against one end of the telescopic rod located inside the telescopic cylinder.

7. The apparatus according to claim 1, wherein: A plurality of elastic rods are uniformly distributed around the circumferential direction of the inner roller, and the elastic rods are arranged in the radial direction of the inner roller; the elastic rods are connected with the inner roller by a second elastic member, and the second elastic member is arranged in the radial direction of the inner roller.

8. The apparatus according to claim 1, wherein: The diameter of the secondary roller is smaller than the diameter of the main roller, and the material of the secondary roller is steel, and the material of the main roller is polyurethane rubber.

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