A three-roller differential speed variable curvature CNC plate rolling machine

Abstract

The present invention relates to the field of mechanical processing technology, specifically a three-roller differential speed variable curvature CNC plate rolling machine, comprising a frame bottom plate, frame vertical plate 1 and frame vertical plate 2 are fixedly installed on the top walls at both ends of the frame bottom plate, an active roller is rotatably installed on the frame vertical plate 1, a motor 1 is fixedly installed on the frame bottom plate, the output end of the motor 1 is connected to the active roller through a synchronous belt, and an active roller mounting tailstock that cooperates with the active roller is rotatably installed on the top wall of the frame bottom plate away from the motor 1. The present invention is designed with a material unloading device and a material receiving device. After the processing is completed, the workpiece is moved to the material receiving device with the help of the material unloading device, and then the workpiece is unloaded from the material receiving device. Not only can the workpieces of different sizes and weights be unloaded conveniently, but also the workpiece does not directly contact the two lower working rollers during unloading, which reduces the wear of the working rollers, not only improves the processing accuracy, but also extends the service life of the working rollers.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a three-roller differential speed variable curvature CNC plate rolling machine. Background Art

[0002] The plate rolling machine is a device that uses working rollers to bend and shape sheet materials. It can form parts of different shapes such as cylindrical parts and conical parts. It is a very important processing equipment. The working principle of the plate rolling machine is to move the working rollers through the action of external forces such as hydraulic pressure and mechanical force, so as to press or roll the sheet into shape. According to the rotational movement and position changes of working rollers of different shapes, elliptical parts, arc parts, cylindrical parts and other parts can be processed.

[0003] Traditional plate rolling machines complete the processing of workpieces by manual loading and unloading. Currently, most operators wait for the workpiece to be processed into a cylindrical shape and then unload it by manual dragging. For workpieces that are large in size and weight, not only is it inconvenient to unload due to the inconvenience of dragging, but also because the workpiece is supported by the two lower working rollers during dragging, the surface of the two lower working rollers will wear out over time, which will not only shorten the service life of the two lower working rollers, but also affect the processing accuracy.

[0004] Therefore, a three-roller differential speed variable curvature CNC plate rolling machine is proposed. Summary of the invention

[0005] The object of the present invention is to provide a three-roller differential speed variable curvature CNC plate rolling machine, which solves the problems raised in the above-mentioned background technology by arranging a feeding device and a receiving device.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A three-roller differential speed variable curvature CNC plate rolling machine, comprising:

[0008] A rack bottom plate, on top walls at both ends of the rack bottom plate, a rack vertical plate 1 and a rack vertical plate 2 are respectively fixedly mounted;

[0009] Active roller, the active roller is rotatably mounted on the frame vertical plate 1, a motor 1 is fixedly mounted on the frame bottom plate, the output end of the motor 1 is connected to the active roller through a synchronous belt 1, and an active roller mounting tailstock that cooperates with the active roller is rotatably mounted on the top wall of the frame bottom plate away from the motor 1 end;

[0010] A driven roller 1 and a driven roller 2 are provided on the frame vertical plate 1, and two mounting seats are symmetrically and movably installed. The two mounting seats are respectively and rotatably installed with a driven roller 1 and a driven roller 2. The driven roller 1 and the driven roller 2 cooperate with the active roller, and the active roller, the driven roller 1 and the driven roller 2 are used together to form the workpiece. Two hydraulic cylinders are symmetrically and fixedly installed on the frame bottom plate, and the two hydraulic cylinders are respectively used to drive the two mounting seats to move up and down;

[0011] A material unloading device is installed on the bottom plate of the frame to unload the workpiece from the active roller, the driven roller 1 and the driven roller 2;

[0012] A material receiving device is installed on the bottom plate of the frame and is used to receive the workpieces unloaded from the unloading device.

[0013] Preferably, the unloading device comprises two slide rails symmetrically fixedly mounted on the bottom plate of the frame, a plurality of sliders 1 are slidably connected to the two slide rails, and a moving plate is fixedly mounted on the tops of the sliders 1 located on the same side;

[0014] Support rod base, two support rod bases are symmetrically fixedly installed on the two movable plates, support rods are hinged on the support rod bases, and mounting rods are commonly fixedly installed on the two support rods on the same side;

[0015] Cylinder 2, two cylinders 2 are symmetrically fixedly installed on the top walls of the two moving plates, and the output ends of the two cylinders 2 are rotatably connected to the two support rods respectively;

[0016] A driving assembly is installed on the second frame vertical plate to drive the two moving plates to move back and forth horizontally.

[0017] Preferably, the driving assembly includes a second motor fixedly mounted on a second frame upright plate, two reciprocating screws are mounted on the first frame upright plate and the second frame upright plate for rotating together, a second slider is fixedly mounted on the bottom walls of the two movable plates, the two reciprocating screws respectively penetrate the two sliders, and the two reciprocating screws respectively cooperate with the two sliders, a synchronous wheel is fixedly mounted on the output end of the second motor and one end of the two reciprocating screws, and a synchronous belt is wound around the synchronous wheel.

[0018] Preferably, the lengths of the two mounting rods are the same as the length of the active roller.

[0019] Preferably, a plurality of rubber blocks are sleeved on the two mounting rods at equal distances.

[0020] Preferably, both mounting rods are provided with an anti-falling device cooperating with the rubber block, and the anti-falling device includes a plurality of mounting grooves evenly arranged on the mounting rods, and each mounting groove is connected with a pre-tightening block cooperating with the rubber block via a spring.

[0021] Preferably, both ends of the driven roller 1 or the driven roller 2 are fixedly mounted with limit blocks, and the distance between the outer walls of the two limit blocks and the active roller is smaller than the thickness of the workpiece.

[0022] Preferably, the unloading device includes two cylinders 1 symmetrically fixedly mounted on the bottom plate of the frame, and the two cylinders 1 are both located at the end of the active roller away from the vertical plate 1 of the frame, and the output ends of the two cylinders 1 are both equipped with support plates for supporting the workpiece.

[0023] Preferably, the output ends of the two cylinder ones are fixedly installed with support column fixing plates, and two support rods are symmetrically fixedly installed on the top walls of the two support column fixing plates, the support plate includes two arc-shaped support blocks that cooperate with each other, and the two arc-shaped support blocks are rotatably connected to the two support rods by pins, and a guide rod is fixedly installed on the top wall of the support column fixing plate, and a sleeve is slidably connected to the guide rod, one end of the two arc-shaped support blocks is connected to the sleeve through spring two, and spring three is evenly wound on the outer side wall of the guide rod, and the two ends of spring three are fixedly connected to the support column fixing plate and the sleeve respectively.

[0024] Preferably, a pressure sensor is connected to the sleeve.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Compared with the traditional technical solutions, the three-roller differential speed variable curvature CNC plate rolling machine described in the present invention is designed with a feeding device and a receiving device. After the processing is completed, the workpiece is moved to the receiving device with the help of the feeding device, and then the workpiece is unloaded from the receiving device. Not only can the workpieces of different sizes and weights be unloaded conveniently, but the workpiece does not directly contact the two lower working rollers during unloading, which reduces the wear of the working rollers, not only improves the processing accuracy, but also extends the service life of the working rollers.

[0027] 2. Compared with the traditional technical solutions, the three-roller differential variable curvature CNC plate rolling machine described in the present invention can reduce the wear between the mounting rod and the workpiece by installing multiple rubber blocks on the mounting rod, which can not only protect the surface of the workpiece after processing, but also extend the service life of the mounting rod.

[0028] 3. Compared with the traditional technical solutions, the three-roller differential speed variable curvature CNC plate rolling machine described in the present invention installs a limit block on the active roller to position the workpiece during loading and processing, thereby preventing the workpiece from being offset during processing and affecting the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a front view of the present invention;

[0031] Figure 3 It is a right side view of the present invention;

[0032] Figure 4 It is a left side view of the present invention;

[0033] Figure 5 It is a cross-sectional view of the mounting rod and the rubber block of the present invention;

[0034] Figure 6 It is a cross-sectional view of the support plate portion of the present invention.

[0035] In the figure: 1. frame bottom plate; 2. slide rail; 3. frame vertical plate 1; 4. hydraulic cylinder; 5. synchronous belt 1; 6. motor 1; 7. driven roller 1; 8. active roller; 9. driven roller 2; 10. workpiece; 11. reciprocating screw rod; 12. support plate; 13. cylinder 1; 14. frame vertical plate 2; 15. synchronous belt 2; 16. motor 2; 17. synchronous wheel; 18. moving plate; 19. slider 1; 20. support rod; 21. cylinder 2; 22. support rod base; 23. limit block; 24. rubber block; 25. mounting rod; 26. active roller mounting tailstock; 27. slider 2; 28. spring 1; 29. ​​preload block; 30. support column fixing plate; 31. pin; 32. guide rod; 33. support rod; 34. spring 2; 35. sleeve; 36. spring 3. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figures 1 to 6 The present invention provides a three-roller differential speed variable curvature CNC plate rolling machine, and the technical solution is as follows:

[0040] A three-roller differential speed variable curvature CNC plate rolling machine, comprising:

[0041] A rack bottom plate 1, on the top walls at both ends of the rack bottom plate 1, a rack vertical plate 1 3 and a rack vertical plate 2 14 are respectively fixedly mounted;

[0042] Active roller 8, the active roller 8 is rotatably mounted on the frame vertical plate 1, a motor 6 is fixedly mounted on the frame bottom plate 1, the output end of the motor 6 is connected to the active roller 8 through a synchronous belt 5, and an active roller mounting tailstock 26 that cooperates with the active roller 8 is rotatably mounted on the top wall of the frame bottom plate 1 away from the end of the motor 6;

[0043] A driven roller 1 7 and a driven roller 2 9 are symmetrically and movably installed on the frame vertical plate 1 3. The driven roller 1 7 and the driven roller 2 9 are rotatably installed on the two mounting seats. The driven roller 1 7 and the driven roller 2 9 cooperate with the active roller 8, and the active roller 8, the driven roller 1 7 and the driven roller 2 9 are used together to form the workpiece 10. Two hydraulic cylinders 4 are symmetrically and fixedly installed on the frame bottom plate 1, and the two hydraulic cylinders 4 are used to drive the two mounting seats to move up and down respectively;

[0044] A material unloading device is installed on the frame bottom plate 1 to unload the workpiece 10 from the active roller 8, the driven roller 1 7 and the driven roller 2 9;

[0045] A material receiving device is installed on the frame bottom plate 1 for receiving the workpieces 10 unloaded from the unloading device.

[0046] During processing, first start the hydraulic cylinder 4 to drive the two mounting seats to respectively drive the driven roller 1 7 and the driven roller 2 9 to move upward to a suitable processing position, and then place the plate to be processed between the active roller 8, the driven roller 1 7 and the driven roller 2 9. After placing the processed plate, start the motor 6, and the motor 6 drives the active roller 8 to rotate. After the plate is subjected to the rotation movement of the active roller 8 and the upward pressure of the driven roller 1 7 and the driven roller 2 9, the plate will undergo multiple continuous bendings and be processed into a cylindrical workpiece 10. Here, the three rollers of the active roller 8, the driven roller 1 7 and the driven roller 2 9 are used to roll the plate into a cylindrical workpiece 10, which is the same as the processing process of the existing three-roller plate rolling machine, so it will not be described in detail. After the work is completed, the unloading device first receives the workpiece 10, and then the hydraulic cylinder 4 drives the two mounting seats to respectively drive the driven roller 1 7 and the driven roller 2 9 to move downward to the bottom end of the workpiece 10, and then the active roller mounting tailstock 26 is opened. Since the opening of the active roller mounting tailstock 26 belongs to a mature existing technology, it is not specifically introduced in this application. Then the unloading device moves the workpiece 10 to the receiving device, and finally removes the workpiece 10 from the receiving device. Not only can it be convenient to unload workpieces 10 of different sizes and weights, but also the workpiece 10 does not directly contact the lower two working rollers during unloading, which reduces the wear of the working rollers, not only improves the processing accuracy, but also extends the service life of the working rollers.

[0047] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The unloading device includes two slide rails 2 symmetrically fixedly mounted on the bottom plate 1 of the frame, and a plurality of sliders 19 are slidably connected to the two slide rails 2, and a moving plate 18 is fixedly mounted on the top of the sliders 19 on the same side;

[0048] Support rod bases 22, two support rod bases 22 are symmetrically fixedly installed on the two moving plates 18, support rods 20 are hinged on the support rod bases 22, and mounting rods 25 are fixedly installed on the two support rods 20 on the same side;

[0049] Cylinder 21, two cylinders 21 are symmetrically fixedly installed on the top walls of the two moving plates 18, and the output ends of the two cylinders 21 are rotatably connected to the two support rods 20 respectively;

[0050] A driving assembly is installed on the frame vertical plate 14 to drive the two moving plates 18 to move back and forth horizontally.

[0051] The driving assembly can drive the two movable plates 18 to reciprocate horizontally. Before processing, the two movable plates 18 are moved to the left to the side close to the frame vertical plate 13. After processing, the cylinder 21 drives the support rod 20 and the mounting rod 25 to move downward and the two mounting rods 25 are respectively pressed against the two sides of the workpiece 10. Then the hydraulic cylinder 4 drives the two mounting seats to respectively drive the driven roller 1 7 and the driven roller 2 9 to move downward to the bottom end of the workpiece 10. Then the active roller mounting tailstock 26 is opened. At this time, the two movable plates 18 are moved to the right to move the processed workpiece 10 to the receiving device. The processed workpiece 10 can be unloaded from the active roller 8, the driven roller 1 7 and the driven roller 2 9 with the help of the mounting rod 25 and the movable plate 18. There is no need for manual unloading, so that workpieces 10 of different sizes and weights can be easily unloaded.

[0052] As an embodiment of the present invention, refer to Figure 2 The driving assembly includes a motor 16 fixedly mounted on the frame vertical plate 14. Two reciprocating screws 11 are installed on the frame vertical plate 13 and the frame vertical plate 14 for rotating together. Slide blocks 27 are fixedly mounted on the bottom walls of the two movable plates 18. The two reciprocating screws 11 respectively penetrate the two slide blocks 27, and the two reciprocating screws 11 respectively cooperate with the two slide blocks 27. The output end of the motor 16 and one end of the two reciprocating screws 11 are fixedly mounted with a synchronous wheel 17, and a synchronous belt 15 is wound around the synchronous wheel 17.

[0053] When the motor 2 16 is started, it can drive the synchronous belt 2 15 and the two reciprocating screws 11 to rotate. The two reciprocating screws 11 cooperate with the two sliders 27 respectively. Therefore, the rotation of the two reciprocating screws 11 can drive the two sliders 27 and the two movable plates 18 to reciprocate horizontally. The structure is simple and the drive is stable, which improves the stability of the movement of the two movable plates 18, thereby improving the working stability of the three-roller differential variable curvature CNC plate rolling machine.

[0054] As an embodiment of the present invention, refer to Figure 1 and Figure 2 , the lengths of the two mounting rods 25 are the same as the length of the active roller 8.

[0055] The length of the mounting rod 25 is designed to be the same as the length of the active roller 8. Therefore, when processing plates of different sizes, there is no need to adjust the device of the mounting rod 25, so that plates of different sizes can be processed conveniently, and the use effect is good.

[0056] As an embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 5 A plurality of rubber blocks 24 are evenly spaced on the two mounting rods 25 .

[0057] A rubber block 24 is designed to be sleeved on the mounting rod 25 , which can reduce the wear between the mounting rod 25 and the workpiece 10 , not only protecting the surface of the workpiece 10 after processing, but also extending the service life of the mounting rod 25 .

[0058] As an embodiment of the present invention, refer to Figure 2 Both mounting rods 25 are provided with an anti-falling device that cooperates with the rubber block 24. The anti-falling device includes a plurality of mounting grooves evenly arranged on the mounting rods 25. Each mounting groove is connected to a preload block 29 that cooperates with the rubber block 24 through a spring 28.

[0059] During installation, the pre-tightening block 29 is pressed down and retracted into the corresponding installation groove, so that the rubber block 24 can be conveniently connected to the installation rod 25. After the installation is completed, the spring 1 28 will push the pre-tightening block 29 to move outward due to the restoration of its own elastic force and make the rubber block 24 close to the installation rod 25, which can prevent the rubber block 24 from falling off during use and facilitate the installation and removal of the rubber block 24. Therefore, the rubber block 24 can be conveniently replaced after aging.

[0060] As an embodiment of the present invention, refer to Figure 2 Limit blocks 23 are fixedly installed at both ends of the driven roller 1 7 or the driven roller 2 9, and the distance between the outer walls of the two limit blocks 23 and the active roller 8 is smaller than the thickness of the workpiece 10, which can prevent the limit blocks 23 from abutting against the driven roller 1 7 or the driven roller 2 9 and hindering the rotation of the active roller 8 when the active roller 8 rotates.

[0061] The limit block 23 is fixedly installed on the active roller 8 by means of fastening bolts, etc., and the position of the limit block 23 can be easily adjusted and fixed. When in use, the positions of the two limit blocks 23 are adjusted and the distance between the two limit blocks 23 is consistent with the width of the processed plate, thereby preventing the plate from being positionally shifted during processing, thereby improving the processing quality of the plate.

[0062] As an embodiment of the present invention, refer to Figure 1 The unloading device includes two cylinders 13 symmetrically fixedly mounted on the frame bottom plate 1, and the two cylinders 13 are both located at the end of the active roller 8 away from the frame vertical plate 3, and the output ends of the two cylinders 13 are both equipped with support plates 12 for supporting the workpiece 10.

[0063] The first two cylinders 13 are used to drive the two support plates 12 to move downward to the bottom end respectively. After the two movable plates 18 and the mounting rod 25 move the workpiece 10 to the top of the two support plates 12, the two cylinders 13 respectively drive the two support plates 12 to move upward and lift the workpiece 10 upward. Then the movable plate 18 and the mounting rod 25 can be moved to the processing position to continue processing the plate. For equipment with smaller size and weight, the workpiece 10 can be manually removed from the two support plates 12. For equipment with larger size and weight, the workpiece 10 can be removed from the two support plates 12 with the help of a forklift or other device, which is easy to operate.

[0064] As an embodiment of the present invention, refer to Figure 6 The output ends of the two cylinders 13 are fixedly installed with support column fixing plates 30, and two support rods 33 are symmetrically fixedly installed on the top walls of the two support column fixing plates 30. The support plate 12 includes two arc-shaped support blocks that cooperate with each other. The two arc-shaped support blocks are rotatably connected to the two support rods 33 through pins 31. A guide rod 32 is fixedly installed on the top wall of the support column fixing plate 30, and a sleeve 35 is slidably connected to the guide rod 32. One ends of the two arc-shaped support blocks are connected to the sleeve 35 through a spring 2 34. A spring 36 is evenly wound on the outer wall of the guide rod 32, and the two ends of the spring 36 are fixedly connected to the support column fixing plate 30 and the sleeve 35 respectively.

[0065] The cylinder 13 is started to drive the support column fixing plate 30, the two support rods 33, the two arc-shaped support blocks, the guide rod 32 and the sleeve 35 to move upward. After the sleeve 35 at the bottom of the support plate 12 contacts the workpiece 10, the sleeve 35 will be pressed down due to the gravity of the workpiece 10 itself. When the sleeve 35 is pressed down, it drives the spring 2 34 to move downward at the same time. The position of the arc-shaped support block close to the support column fixing plate 30 is provided with a pin 31 as a fulcrum. The spring 2 34 drives the lower end of the arc-shaped support block to move downward due to the spring elastic force, and the part of the support plate 12 above the pin 31 moves close to the workpiece 10 and holds the workpiece 10 tightly, so that the support plate 12 can clamp workpieces 10 of different sizes, and has a wide range of applications.

[0066] As an embodiment of the present invention, refer to Figure 6 , the sleeve 35 is connected with a pressure sensor.

[0067] A pressure sensor is connected to the sleeve 35, and the pressure sensor is electrically connected to the motor 2 16. If the workpiece 10 has not been removed from the support plate 12, the pressure sensor controls the motor 2 16 to be unable to be energized, that is, the next workpiece 10 cannot be unloaded after processing is completed, and processing is stopped and a prompt is issued until the processed workpiece 10 is removed before unloading.

[0068] Working principle: adjust the distance between the two limit blocks 23 to be consistent with the width of the plate to be processed, install the rubber block 24 on the mounting rod 25, and during processing, first start the hydraulic cylinder 4 to drive the two mounting seats to respectively drive the driven roller 1 7 and the driven roller 2 9 to move upward to the appropriate processing position, and then place the plate to be processed between the active roller 8, the driven roller 1 7 and the driven roller 2 9. After placing the processed plate, start the motor 1 6, which drives the active roller 8 to rotate. The plate is subjected to the rotation of the active roller 8. After the driven roller 1 7 and the driven roller 2 9 are pressed upward, the plate will be bent continuously for multiple times and processed into a cylindrical workpiece 10; the motor 2 16 is started to drive the synchronous belt 2 15 and the two reciprocating screws 11 to rotate, and the two reciprocating screws 11 cooperate with the two sliders 2 27 respectively, so the rotation of the two reciprocating screws 11 can drive the two sliders 27 and the two moving plates 18 to reciprocate horizontally; before processing, move the two moving plates 18 to the left to the side close to the frame vertical plate 1 3, and add After working, the cylinder 21 drives the support rod 20 and the mounting rod 25 to move downward and the two mounting rods 25 are respectively pressed against the two sides of the workpiece 10, and then the hydraulic cylinder 4 drives the two mounting seats to respectively drive the driven roller 1 7 and the driven roller 2 9 to move downward to the bottom end of the workpiece 10, and then the active roller mounting tailstock 26 is opened. At this time, the two movable plates 18 are moved to the right to move the processed workpiece 10 to the receiving device; the first two cylinders 13 are used to drive the two support plates 12 to move downward to the bottom end respectively, and after the two movable plates 18 and the mounting rod 25 move the workpiece 10 to the top of the two support plates 12, the two cylinders 13 drive the two support plates 12 to move upward respectively and lift the workpiece 10 upward, and then the movable plate 18 and the mounting rod 25 can be moved to the processing position to continue processing the plate. For equipment with smaller size and weight, the workpiece 10 can be manually removed from the two support plates 12, and for equipment with larger size and weight, the workpiece 10 can be removed from the two support plates 12 with the help of forklifts and other devices.

[0069] The electrical components appearing in this article are all connected to the external main controller and 220V AC power through a transformer, and the main controller can be a conventional known device that controls a computer, etc. The product model provided by the present invention is only used for the technical solution according to the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more matching and consistent with the technical solution of the present invention. It is a technical solution for the best application of the technical solution. The model of its product can be replaced and modified according to the required technical parameters, which is well known to technical personnel in this field. Therefore, technical personnel in this field can clearly obtain the corresponding use effect through the technical solution provided by the present invention.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-roller differential speed variable curvature CNC plate rolling machine, characterized in that: include: A frame bottom plate (1), wherein a frame vertical plate 1 (3) and a frame vertical plate 2 (14) are respectively fixedly mounted on the top walls at both ends of the frame bottom plate (1); A driving roller (8), wherein the driving roller (8) is rotatably mounted on the frame vertical plate (3), a motor (6) is fixedly mounted on the frame bottom plate (1), the output end of the motor (6) is connected to the driving roller (8) via a synchronous belt (5), and a driving roller mounting tailstock (26) that cooperates with the driving roller (8) is rotatably mounted on the top wall of the frame bottom plate (1) at one end away from the motor (6); A driven roller 1 (7) and a driven roller 2 (9); two mounting seats are symmetrically and movably mounted on the frame vertical plate 1 (3); the two mounting seats are respectively rotatably mounted with the driven roller 1 (7) and the driven roller 2 (9); the driven roller 1 (7) and the driven roller 2 (9) are mutually coordinated with the active roller (8); and the active roller (8), the driven roller 1 (7) and the driven roller 2 (9) are used together to form a workpiece (10); two hydraulic cylinders (4) are symmetrically and fixedly mounted on the frame bottom plate (1), and the two hydraulic cylinders (4) are respectively used to drive the two mounting seats to move up and down; A material unloading device is installed on the frame bottom plate (1) for unloading the workpiece (10) from the active roller (8), the driven roller one (7) and the driven roller two (9); A material receiving device, wherein the frame bottom plate (1) is provided with a material receiving device for receiving workpieces (10) unloaded from the material unloading device; The unloading device comprises two slide rails (2) symmetrically fixedly mounted on the bottom plate (1) of the frame, a plurality of sliders (19) being slidably connected to the two slide rails (2), and a movable plate (18) being fixedly mounted on the top ends of the sliders (19) located on the same side; A support rod base (22), wherein two support rod bases (22) are symmetrically fixedly installed on the two movable plates (18), a support rod (20) is hinged on the support rod base (22), and a mounting rod (25) is fixedly installed on the two support rods (20) located on the same side; Cylinder 2 (21), two cylinders 2 (21) are symmetrically fixedly installed on the top walls of the two movable plates (18), and the output ends of the two cylinders 2 (21) are rotatably connected to the two support rods (20) respectively; A driving assembly, wherein the second frame upright plate (14) is provided with a driving assembly for driving two movable plates (18) to move horizontally back and forth; The driving assembly comprises a second motor (16) fixedly mounted on a second frame upright plate (14); two reciprocating screw rods (11) are mounted on the first frame upright plate (3) and the second frame upright plate (14) for co-rotation; two sliders (27) are fixedly mounted on the bottom walls of the two movable plates (18); the two reciprocating screw rods (11) respectively penetrate the two sliders (27), and the two reciprocating screw rods (11) respectively cooperate with the two sliders (27); the output end of the second motor (16) and one end of the two reciprocating screw rods (11) are fixedly mounted with a synchronous wheel (17); and a synchronous belt (15) is wound around the synchronous wheel (17); The lengths of the two mounting rods (25) are the same as the length of the active roller (8); A plurality of rubber blocks (24) are sleeved on the two mounting rods (25) at equal distances; The unloading device comprises two cylinders (13) symmetrically fixedly mounted on the frame bottom plate (1), and the two cylinders (13) are both located at the end of the active roller (8) away from the frame vertical plate (3), and the output ends of the two cylinders (13) are both equipped with support plates (12) for supporting the workpiece (10); The movable plate (18) has a U-shaped structure and is located outside the workpiece (10); For workpieces with larger size and weight (10); First, the hydraulic cylinder (4) is started to drive the two mounting seats to respectively drive the driven roller 1 (7) and the driven roller 2 (9) to move upward to a suitable processing position, and then the plate to be processed is placed between the active roller (8), the driven roller 1 (7) and the driven roller 2 (9). After the processed plate is placed, the motor 1 (6) is started. The motor 1 (6) drives the active roller (8) to rotate. After the plate is subjected to the rotation movement of the active roller (8) and the upward pressure of the driven roller 1 (7) and the driven roller 2 (9), the plate is subjected to multiple continuous bending and processed into a cylindrical workpiece (10); the motor 2 (16) is started to drive the synchronous belt 2 (15) and the two reciprocating screws (11) to rotate. The two reciprocating screws (11) respectively cooperate with the two sliders 2 (27), so that the rotation of the two reciprocating screws (11) drives the two sliders 2 (27) and the two movable plates (18) to reciprocate horizontally; before processing, the two movable plates (18) are first moved to the left to a position close to the frame. On one side of the plate (3), after processing, the cylinder (21) drives the support rod (20) and the mounting rod (25) to move downward and place the two mounting rods (25) close to the two sides of the workpiece (10), and then the hydraulic cylinder (4) drives the two mounting seats to respectively drive the driven roller (7) and the driven roller (9) to move downward to the bottom end of the workpiece (10), and then the active roller mounting tailstock (26) is opened, and at this time, the two movable plates (18) are moved to the right to move the processed workpiece (10) to the receiving device; the first two cylinders (13) are used to respectively drive the two support plates (12) to move downward to the bottom end, and after the two movable plates (18) and the mounting rod (25) move the workpiece (10) to the top of the two support plates (12), the two cylinders (13) respectively drive the two support plates (12) to move upward and lift the workpiece (10) upward, and then the movable plate (18) and the mounting rod (25) are moved to the processing position to continue processing the plate.

2. The three-roller differential speed variable curvature CNC plate rolling machine according to claim 1, characterized in that: Both of the two mounting rods (25) are provided with an anti-falling device that cooperates with the rubber block (24), and the anti-falling device includes a plurality of mounting grooves evenly arranged on the mounting rods (25), and each of the mounting grooves is connected to a pre-tightening block (29) that cooperates with the rubber block (24) via a spring (28).

3. The three-roller differential speed variable curvature CNC plate rolling machine according to claim 1, characterized in that: Limit blocks (23) are fixedly installed at both ends of the driven roller 1 (7) or the driven roller 2 (9), and the distance between the outer walls of the two limit blocks (23) and the active roller (8) is smaller than the thickness of the workpiece (10).

4. The three-roller differential speed variable curvature CNC plate rolling machine according to claim 1, characterized in that: The output ends of the two cylinders (13) are fixedly mounted with a support column fixing plate (30), and two support rods (33) are symmetrically fixedly mounted on the top walls of the two support column fixing plates (30). The support plate (12) comprises two arc-shaped support blocks that cooperate with each other, and the two arc-shaped support blocks are respectively rotatably connected to the two support rods (33) through pins (31). A guide rod (32) is fixedly mounted on the top wall of the support column fixing plate (30), and a sleeve (35) is slidably connected to the guide rod (32). One end of the two arc-shaped support blocks is connected to the sleeve (35) through a spring (34). A spring (36) is evenly wound on the outer wall of the guide rod (32), and the two ends of the spring (36) are respectively fixedly connected to the support column fixing plate (30) and the sleeve (35).

5. The three-roller differential speed variable curvature CNC plate rolling machine according to claim 4, characterized in that: The sleeve (35) is connected to a pressure sensor.

Images