Energy-saving high-precision rolling processing equipment

Abstract

The utility model relates to a kind of energy-saving high-precision roll processing equipment, it relates to machining equipment field.The utility model solves the problems that existing roll press machine tool exists control mode complex, the stress state of roll piece is poorer, roll pressure is limited by friction, the loading ability range of roll pressure is smaller, workpiece quality is lower, workpiece diameter is limited by the ability of shaft coupling deflection angle.The driving side transmission system of the utility model is installed on the driven side support fixture of driven roll wheel, the driving side transmission system other end is connected with the one end of driven side transmission system by telescopic coupling, the driving side transmission system and driven side transmission system are engaged with roll piece, torque loading motor is connected with driving side transmission system to control the transmission torque of roll piece, rotational speed control motor is connected with driven side transmission system to control the rotational speed of roll piece.The utility model is used to improve the stress stability of roll pressing process while improving the diameter adaptation range of roll piece.

Description

Technical Field

[0001] This invention relates to the field of machining equipment, and more specifically to an energy-saving, high-precision rolling mill. Background Technology

[0002] Roller burnishing is a non-cutting forming method that uses a pair or set of rotating dies (rollers) to apply pressure to the workpiece, causing the material to undergo plastic deformation to achieve the desired shape and size. This processing method is characterized by high efficiency, good surface quality, and the ability to maintain high dimensional consistency. It is particularly effective for mass-produced parts. Roller burnishing machines can be used to manufacture parts of various shapes, such as gears, threads, and shafts.

[0003] However, roll forming is also prone to surface defects such as adhesion due to poor cooling, bending deformation due to uneven stress, and material performance degradation due to excessively high temperatures caused by poor heat dissipation. These problems are particularly common when processing large-sized or ultra-hard materials. These defects mainly stem from the principle of traditional roll forming. Traditional roll forming machines use a motor or other power source to drive a gearbox that rotates the rollers. Simultaneously, a pair or a group of rollers actively apply pressure to the workpiece, causing plastic deformation. For example, when processing threaded parts, the frictional torque generated by the applied pressure must be balanced with the driving torque generated by the driving force to ensure smooth roll forming. When processing large or ultra-hard materials, a large amount of pressure needs to be applied by the rollers to deform the workpiece. Due to the force relationship, this increases friction and generates a lot of heat. Furthermore, the power source must have well-controlled closed-loop speed and torque. The roller pressure application device must be well controlled. Furthermore, when machining threaded or screw-like parts, since the rollers are all driving wheels, the axial force on the machined part is in one direction. This leads to uneven stress on both sides of the helical surface, easily causing defects such as bending deformation. Additionally, traditional roller burnishing machines often use universal joint couplings with large angular compensation to adjust the center distance to accommodate parts of different diameters. When the universal joint coupling is skewed, the transmitted torque will fluctuate periodically, causing fluctuations in the stress on the machined part and easily leading to defects such as decreased dimensional accuracy. Therefore, it is necessary to upgrade traditional roller burnishing equipment, simplify its control mode, optimize the stress state of the burnished parts, avoid the limitation of roller pressure by friction, and increase its roller pressure loading range, thereby improving the quality of machined parts, especially for the burnishing of large, high-hardness materials. This also improves the ability of traditional roller burnishing machines to handle the diameter limitations of the coupling skew angle. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing rolling mills, such as complex control modes, inconsistent force states on both sides of the rolled part, rolling force limited by friction, small loading capacity range of rolling force, low quality of the processed part, and the diameter of the processed part limited by the deflection angle of the coupling. Specifically, to overcome the limitations of traditional roller burnishing machines that apply pressure to the workpiece simultaneously using a pair or a group of rollers (all driving rollers), resulting in unidirectional axial forces on the workpiece and inconsistent stress on both sides of the helical surface, leading to uneven stress and bending deformation, this paper proposes an energy-saving, high-precision roller burnishing device. This addresses the issue that traditional roller burnishing machines, with their driving rollers, require a balance between the frictional torque generated by the applied pressure and the driving torque generated by the driving force to ensure smooth operation. Furthermore, this device is particularly problematic when machining large or ultra-hard materials, as increased friction generates significant heat and complicates speed and torque control. Additionally, it addresses the limitations imposed by the coupling's skew angle on the diameter of the workpiece.

[0005] The technical solution of this invention is:

[0006] An energy-saving, high-precision roll forming machine includes a closed mechanical power transmission system, an active roll forming wheel side support fixture 30, a driven roll forming wheel side support fixture 40, and an auxiliary radial support assembly 50. The active and driven roll forming wheel side support fixtures 30 and 40 are arranged side-by-side on the front and rear sides of the auxiliary radial support assembly 50. The closed mechanical power transmission system includes a roll forming component 10 and a roll forming transmission system 20. The roll forming component 10 is positioned above the auxiliary radial support assembly 50. The roll forming transmission system 20 includes an active side transmission system, a driven side transmission system, and a telescopic transmission system. The system includes a coupling 27, a torque loading motor 26, and a speed control motor 28. The active side transmission system is mounted on the active rolling wheel side support clamp 30, and the driven side transmission system is mounted on the driven rolling wheel side support clamp 40. The other end of the active side transmission system is connected to one end of the driven side transmission system via a telescopic coupling 27. Both the active and driven side transmission systems mesh with the rolling member 10. The torque loading motor 26 is connected to the active side transmission system to control the transmission torque of the rolling member 10, and the speed control motor 28 is connected to the driven side transmission system to control the speed of the rolling member 10.

[0007] Furthermore, the active side transmission system includes an active rolling assembly, an active rolling bearing housing coupling 22, a reduction gearbox 23, a reduction gearbox input coupling 24, and a mechanical loading gearbox 25. The active rolling assembly is mounted on the upper surface of the active rolling wheel side support fixture 30. The active rolling assembly is connected to the input shaft of the reduction gearbox 23 through the active rolling bearing housing coupling 22. The output shaft of the reduction gearbox 23 is connected to the input shaft of the mechanical loading gearbox 25 through the reduction gearbox input coupling 24. The output shaft of the mechanical loading gearbox 25 is connected to one end of the telescopic coupling 27.

[0008] Furthermore, the active rolling assembly includes an active rolling wheel and an active rolling bearing housing 21. The active rolling wheel is rotatably mounted on the active rolling bearing housing 21, and the active rolling bearing housing 21 is mounted on the upper surface of the active rolling wheel side support clamp 30. One end of the wheel axle of the active rolling wheel is connected to the active rolling bearing housing coupling 22.

[0009] Furthermore, the driven-side transmission system includes a driven rolling assembly, a reversing bevel gearbox 29, and a driven rolling bearing housing coupling 210. The driven rolling assembly is connected to the output shaft of the reversing bevel gearbox 29 via the driven rolling bearing housing coupling 210, and the input shaft of the reversing bevel gearbox 29 is connected to the other end of the telescopic coupling 27.

[0010] Furthermore, the driven rolling assembly includes a driven rolling wheel and a driven rolling bearing housing 211. The driven rolling wheel is rotatably mounted on the driven rolling bearing housing 211, which is mounted on the upper surface of the driven rolling wheel side support clamp 40. One end of the wheel axle of the driven rolling wheel is connected to the driven rolling bearing housing coupling 210.

[0011] Furthermore, the driven rolling roller side support fixture 40 includes an upper fixture 41, a lower support 43, and two driven servo drive devices 42. The upper fixture 41 is located directly above the lower support 43. The driven servo drive devices 42 are horizontal linear modules. The two horizontal linear modules are horizontally mounted side by side on the upper surface of the lower support 43 in a direction perpendicular to the axis of the rolling part 10. The nuts of the two horizontal linear modules are connected to the lower surface of the upper fixture 41 through connecting elements.

[0012] Furthermore, the auxiliary radial support assembly 50 includes an auxiliary bracket 51, an auxiliary servo drive device 52, a support roller bearing seat 53, and an auxiliary support roller. The auxiliary bracket 51 is provided between the active rolling bearing seat 21 and the driven rolling bearing seat 211. The support roller bearing seat 53 is provided above the auxiliary bracket 51. The auxiliary support roller is rotatably mounted on the support roller bearing seat 53. The auxiliary servo drive device 52 is a lifting linear module. The auxiliary servo drive device 52 is mounted on the auxiliary bracket 51. The nut of the auxiliary servo drive device 52 is connected to the support roller bearing seat 53 through a connecting element.

[0013] Furthermore, the rolling element 10 is a rod with a helical structure, and the rolling element 10 meshes with both the driving rolling wheel and the driven rolling wheel.

[0014] Furthermore, the mechanical loading gearbox 25 adopts a differential planetary configuration. The sun gear of the mechanical loading gearbox 25 drives the active rolling wheel after being reduced in speed by the gearbox input coupling 24 and then by the gearbox 23. The gear ring of the mechanical loading gearbox 25 is connected to the telescopic coupling 27 after being reversed by bevel gear meshing, and then connected to the driven rolling bearing housing coupling 210 and the driven rolling bearing housing 211 after being reversed by the reversing bevel gearbox 29. The planetary carrier of the mechanical loading gearbox 25 is connected to the torque loading motor 26 after being accelerated.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This invention adopts the mechanical power closed energy feedback principle. The speed and torque control of the entire mechanical power closed transmission system are handled by different control motors. The torque and speed control are independent. Compared with the traditional rolling device, which can only rely on one drive device for torque and speed control, the control is simpler.

[0017] 2. This invention incorporates the workpiece as part of a closed mechanical power transmission system. The rolling rollers include both active and passive rolling rollers, unlike traditional rolling devices where all rolling rollers are active. This alters the stress state of the rolled workpiece, ensuring that both sides of the rolled workpiece surface are subjected to rolling pressure. This improves the uniformity of stress distribution and avoids deformation caused by uneven stress. It overcomes the problems of traditional rolling devices where the axial force on the workpiece is in one direction, leading to inconsistent stress distribution on both sides of the spiral surface and resulting in uneven stress that can cause bending deformation defects.

[0018] 3. This invention employs a mechanical power closed-loop energy feedback principle. The torque caused by the rolling force of the rolled part is balanced by the active and passive rolling wheels, and is not limited by frictional torque. The rolling force is determined by the closed power of the mechanical power closed-loop transmission system. Compared with traditional rolling machines where all rolling wheels are active wheels, the frictional torque generated by the applied positive pressure and the driving torque generated by the driving force must be balanced to ensure smooth rolling motion. Rolling of large and hard materials generates a lot of heat. This invention, by employing a mechanical power closed-loop energy feedback principle, improves the heat generation, increases the rolling force, and is suitable for rolling of large and hard materials. At the same time, due to the mechanical power closed-loop energy feedback principle, the operating efficiency is higher.

[0019] 4. Furthermore, the active and driven transmission systems of the mechanical power closed transmission system of this invention are connected by a telescopic coupling. When adapting to rolling parts of different diameters and dimensional changes during the rolling process, the servo displacement control system can control the entire driven transmission system to move perpendicular to the axis of the telescopic coupling, ensuring that the posture of the active and driven rolling bearing housing couplings remains unchanged. This overcomes the problem of force fluctuations on the rolling parts caused by the angular deviation of the universal joint coupling when adjusting the center distance of traditional rolling devices, ensuring the smooth transmission of speed and torque, improving the stability of force during the rolling process, and increasing the diameter adaptability range of the rolling parts. Attached Figure Description

[0020] Figure 1 This is a transmission principle diagram of an energy-saving high-precision rolling processing equipment according to the present invention, used to illustrate the principle of the present invention; Figure 2 This is a transmission principle diagram of a traditional rolling device, and... Figure 1 To make comparisons, used to illustrate the force state; Figure 3 This is an isometric view of an energy-saving, high-precision rolling mill described in this invention, used to specifically show the main components of the equipment; Figure 4 This is an isometric view of an energy-saving, high-precision roll forming equipment according to the present invention, showing the main components of the equipment in detail. Figure 5 This is a front view of the energy-saving high-precision rolling processing equipment described in this invention, showing the center distance adjustment and axial force analysis in detail. Figure 6 This is a side view of the energy-saving high-precision rolling processing equipment described in this invention, showing the tangential and radial force analysis in detail.

[0021] In the diagram: 10. Rolled component; 20. Rolled transmission system; 21. Active rolled bearing housing; 22. Active rolled bearing housing coupling; 23. Gearbox; 24. Gearbox input coupling; 25. Mechanical loading gearbox; 26. Torque loading motor; 27. Telescopic coupling; 28. Speed ​​control motor; 29. ​​Reversing bevel gearbox; 210. Driven rolled bearing housing coupling; 211. Driven rolled bearing housing; 30. Active rolled roller side support fixture; 40. Driven rolled roller side support fixture; 41. Upper fixture; 42. Driven servo drive device; 43. Lower support; 50. Auxiliary radial support assembly; 51. Auxiliary support; 52. Auxiliary servo drive device; 53. Support roller bearing housing. Detailed Implementation

[0022] Specific implementation method one: Combining Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment describes an energy-saving, high-precision roller rolling processing device, comprising a mechanical power closed transmission system, an active roller rolling wheel side support fixture 30, a driven roller rolling wheel side support fixture 40, and an auxiliary radial support assembly 50. The active roller rolling wheel side support fixture 30 and the driven roller rolling wheel side support fixture 40 are arranged side-by-side on the front and rear sides of the auxiliary radial support assembly 50. The mechanical power closed transmission system includes a roller rolling component 10 and a roller rolling transmission system 20. The roller rolling component 10 is disposed above the auxiliary radial support assembly 50. The roller rolling transmission system 20 includes an active side transmission system and a driven side transmission system. The transmission system includes a telescopic coupling 27, a torque loading motor 26, and a speed control motor 28. The active side transmission system is mounted on the active rolling wheel side support clamp 30, and the driven side transmission system is mounted on the driven rolling wheel side support clamp 40. The other end of the active side transmission system is connected to one end of the driven side transmission system through the telescopic coupling 27. Both the active and driven side transmission systems mesh with the rolling member 10. The torque loading motor 26 is connected to the active side transmission system to control the transmission torque of the rolling member 10, and the speed control motor 28 is connected to the driven side transmission system to control the speed of the rolling member 10.

[0023] Specific Implementation Method Two: Combining Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment describes an active-side transmission system comprising an active rolling assembly, an active rolling bearing housing coupling 22, a reduction gearbox 23, a reduction gearbox input coupling 24, and a mechanically loaded gearbox 25. The active rolling assembly is mounted on the upper surface of the active rolling wheel side support fixture 30. The active rolling assembly is connected to the input shaft of the reduction gearbox 23 via the active rolling bearing housing coupling 22. The output shaft of the reduction gearbox 23 is connected to the input shaft of the mechanically loaded gearbox 25 via the reduction gearbox input coupling 24. The output shaft of the mechanically loaded gearbox 25 is connected to one end of a telescopic coupling 27. Other components and connections are the same as in specific embodiment one.

[0024] Specific implementation method three: Combining Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6This embodiment describes an active rolling assembly comprising an active rolling wheel and an active rolling bearing housing 21. The active rolling wheel is rotatably mounted on the active rolling bearing housing 21, which is mounted on the upper surface of the active rolling wheel side support fixture 30. One end of the axle of the active rolling wheel is connected to the active rolling bearing housing coupling 22. With this configuration, the active rolling wheel side support fixture 30 primarily supports the active rolling bearing housing 21, the active rolling bearing housing coupling 22, the reduction gearbox 23, the reduction gearbox input coupling 24, the mechanical loading gearbox 25, and the torque loading motor 26. Other components and connections are the same as in specific embodiments one or two.

[0025] Specific implementation method four: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment describes a driven-side transmission system comprising a driven rolling assembly, a reversing bevel gearbox 29, and a driven rolling bearing housing coupling 210. The driven rolling assembly is connected to the output shaft of the reversing bevel gearbox 29 via the driven rolling bearing housing coupling 210, and the input shaft of the reversing bevel gearbox 29 is connected to the other end of the telescopic coupling 27. Other components and connections are the same as in specific embodiments one, two, or three.

[0026] Specific Implementation Method Five: Combining Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment describes a driven rolling assembly comprising a driven rolling wheel and a driven rolling bearing housing 211. The driven rolling wheel is rotatably mounted on the driven rolling bearing housing 211, which is mounted on the upper surface of the driven rolling wheel side support fixture 40. One end of the axle of the driven rolling wheel is connected to the driven rolling bearing housing coupling 210. With this configuration, the driven rolling wheel side support fixture 40 primarily supports the speed control motor 28, the reversing bevel gearbox 29, the driven rolling bearing housing coupling 210, and the driven rolling bearing housing 211. Other components and connections are the same as in specific embodiments one, two, three, or four.

[0027] Specific Implementation Method Six: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6This embodiment describes a driven rolling roller side support fixture 40 comprising an upper fixture 41, a lower support 43, and two driven servo drive devices 42. The upper fixture 41 is positioned directly above the lower support 43. The driven servo drive devices 42 are horizontal linear modules. The two horizontal linear modules are horizontally mounted side-by-side on the upper surface of the lower support 43 along a direction perpendicular to the axis of the rolling member 10. The nuts of the two horizontal linear modules are connected to the lower surface of the upper fixture 41 via connecting elements. Other components and connections are the same as in specific embodiments one, two, three, four, or five.

[0028] Specific implementation method seven: Combining Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment describes an auxiliary radial support assembly 50 comprising an auxiliary bracket 51, an auxiliary servo drive device 52, a support roller bearing seat 53, and an auxiliary support roller. The auxiliary bracket 51 is positioned between the active rolling bearing seat 21 and the driven rolling bearing seat 211. The support roller bearing seat 53 is located above the auxiliary bracket 51, and the auxiliary support roller is rotatably mounted on the support roller bearing seat 53. The auxiliary servo drive device 52 is a lifting linear module, mounted on the auxiliary bracket 51. The nut of the auxiliary servo drive device 52 is connected to the support roller bearing seat 53 via a connecting element. With this configuration, the auxiliary radial support assembly 50 primarily supports the radial force of the rolled part 10 during the rolling process. Through the auxiliary radial support assembly 50, the entire equipment can achieve continuous production, suitable for continuous rolling processing of parts such as screws. If the auxiliary radial support assembly 50 adopts a form without the support roller bearing seat 53, and instead directly supports the rolled part 10 through a top bearing seat or similar means, this is also a feasible solution, but the continuous production performance decreases, making it suitable for processing small batches of single pieces. Other components and connections are the same as in specific implementation methods one, two, three, four, five, or six.

[0029] Specific implementation method eight: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the rolling element 10 is a rod with a helical structure, which meshes with both the driving and driven rolling wheels. With this configuration, the rolling element 10 can be a worm gear, bolt, or other component with a helical structure, which can transmit torque and motion through meshing. Other components and connections are the same as in specific embodiments one, two, three, four, five, six, or seven.

[0030] Specific Implementation Method Nine: Combining Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the mechanical loading gearbox 25 adopts a differential planetary configuration. The sun gear of the mechanical loading gearbox 25 drives the driving rolling wheel after being reduced in speed by the gearbox input coupling 24 and then by the gearbox 23. The gear ring of the mechanical loading gearbox 25 is connected to the telescopic coupling 27 after being reversed by bevel gear meshing, and then connected to the driven rolling bearing housing coupling 210 and the driven rolling bearing housing 211 after being reversed by the reversing bevel gearbox 29. This makes the axis of the driving rolling bearing housing 211 parallel to that of the driven rolling bearing housing 211. The driven servo drive device 42 drives the upper clamp 41 perpendicular to the axis of the driving rolling bearing housing 211 and the driven rolling bearing housing 211. The 11-axis moves with high precision. During the movement, the length L of the telescopic coupling 27 changes, thereby altering the center distance B between the active and driven rolling bearing seats 211. This process can be adjusted statically or dynamically to accommodate different specifications of the rolling parts 10 and diameter changes during the rolling process. All coupling transmission equipment operates in a normal posture during this process, ensuring reasonable force distribution and uniform stress on the rolling parts 10, which is beneficial for improving machining accuracy. The planetary carrier of the mechanical loading gearbox 25 is connected to the torque loading motor 26 after speed increase. Finally, the mechanical power closed chain is formed by the meshing transmission of the active rolling wheel, the rolling part 10, and the driven rolling wheel, creating internal energy feedback. Other components and connections are the same as in specific implementation methods one, two, three, four, five, six, seven, or eight.

[0031] Among them, the rolling transmission system 20 is a mechanical power closed transmission system, and the rolling part 10 is part of the mechanical power closed transmission system. The rolling transmission system 20 mainly includes a reduction gearbox 23, a mechanical loading gearbox 25, and a reversing bevel gearbox 29, which are three transmission boxes.

[0032] Working principle

[0033] Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6The working principle of the energy-saving high-precision roll forming equipment described in this invention is as follows: First, this invention adopts the mechanical power closed-loop energy feedback principle, treating the workpiece as part of the mechanical power closed-loop transmission system. The speed and torque control of the entire mechanical power closed-loop transmission system are handled by different control motors, with independent torque and speed control. The roll forming rollers include active and passive roll forming rollers, changing the force state of the roll forming part 10, ensuring that both sides of the roll forming part 10 are subjected to rolling pressure, improving the uniformity of force distribution and avoiding deformation of the roll forming part 10 caused by uneven stress. Furthermore, the torque caused by the rolling pressure of the roll forming part 10 is balanced by the active and passive roll forming rollers and is not limited by frictional torque. The rolling pressure is determined by the closed-loop power of the mechanical power closed-loop transmission system, improving… The system eliminates the heat generated during rolling, increases the rolling pressure, and is suitable for rolling large and high-hardness materials. Furthermore, due to the adoption of a mechanical power closed-loop energy feedback principle, its operating efficiency is higher. Additionally, the active and passive transmission systems of the mechanical power closed-loop transmission system are connected by a telescopic coupling 27. When adapting to different diameter rolling parts 10 and dimensional changes during rolling, the passive servo drive device 42 can control the entire passive transmission system to move perpendicularly to the axis of the telescopic coupling 27, ensuring that the posture of the active rolling bearing housing coupling 22 and the passive rolling bearing housing coupling 210 remains unchanged, guaranteeing smooth transmission of speed and torque, and improving the stability of force during the rolling process. This helps to improve the rolling accuracy and expands the diameter adaptability range of the rolling part 10.

[0034] The rotational speed of the rolled part 10 is controlled by the speed control motor 28, and the transmission torque of the rolled part 10 is controlled by the torque loading motor 26. The torque and speed control are independent, and multiple control modes such as constant speed with variable torque and constant torque with variable speed can be realized, making the control flexible. The force analysis diagram shows that when the active rolling roller meshes with the rolling element 10, the active rolling roller is the driving wheel, and the rolling element 10 is the driven wheel. When the rolling element 10 meshes with the driven rolling roller, the rolling element 10 is the driving wheel and the rolling element 10 is the idler wheel in the transmission system. From the force analysis of the idler wheel, it can be seen that it bears two tangential forces Ft1 and Ft2 in the same direction and a radial force Fr in the opposite direction to balance it from its meshing with the active rolling roller and the driven rolling roller, as well as axial forces Fa1 and Fa2 in opposite directions. The tangential forces in the same direction are balanced by the radial support force of the auxiliary support roller. The auxiliary servo drive device 52 can drive the auxiliary support roller to move with high precision. This process can be adjusted statically or dynamically to adapt to different specifications of the rolling element 10 and the diameter change during the rolling process. The force balance relationship is Fr3 = Ft1 + Ft2, Fa1 = Fa2.

[0035] The transmission principle of traditional rolling equipment is as follows: Figure 2As shown, the drive motor S5 typically drives the reduction gearbox S3 via the drive motor coupling S4. The reduction gearbox S3 has two output ends, which are generally connected to universal coupling S1 and universal coupling S2, which have large-angle deflection capabilities. Analysis of the meshing of the rolling element 10 with the conventional rolling rollers S6 and S7 shows that both conventional rolling rollers S6 and S7 are driving wheels, and the rolling element 10 is the driven wheel. From the force analysis of the driven wheel, it can be seen that it bears two opposing tangential forces Ft1 and Ft2 from the meshing of conventional rolling rollers S6 and S7, as well as a radial force Fr balancing in the opposite direction, and opposing axial forces Fa1 and Fa2. The rotational torque caused by the two opposing tangential forces Ft1 and Ft2 is generated by… The frictional counter-rotational torque balance brought about by the positive pressure of the rolling process (F-pressure) shows that the rolled part 10 is subjected to axial forces in the same direction. The forces on both sides of the rolling feature surface of the rolled part 10 are inconsistent, with one side experiencing a larger axial force. This easily leads to uneven internal stress in the rolled part 10. Furthermore, during the rolling process, the tangential forces Ft1, Ft2, and radial forces Fr are affected by friction; when the rolling pressure is large, frictional heat generation increases. Additionally, when changing the center distance B between the traditional rolling rollers S6 and S7 to accommodate different rolled part 10 dimensions, the universal coupling S2 often experiences an angle α deviation. When the coupling deviates, the large-angle compensation of the compensating element will cause torque fluctuations, which will lead to force fluctuations in the rolled part 10 and cause quality problems such as accuracy issues. At the same time, the angular deviation angle of the coupling is limited, thus restricting the adaptability of the processing equipment to the dimensions of the rolled part 10.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving, high-precision roll forming equipment, characterized in that: It includes a closed mechanical power transmission system, an active rolling wheel side support clamp (30), a driven rolling wheel side support clamp (40), and an auxiliary radial support assembly (50). The active rolling wheel side support clamp (30) and the driven rolling wheel side support clamp (40) are arranged side by side on the front and rear sides of the auxiliary radial support assembly (50). The closed mechanical power transmission system includes a rolling element (10) and a rolling transmission system (20). The rolling element (10) is located above the auxiliary radial support assembly (50). The rolling transmission system (20) includes an active side transmission system, a driven side transmission system, and a telescopic coupling (27). The torque loading motor (26) and the speed control motor (28) are installed on the active side drive system on the active rolling wheel side support fixture (30) and the driven side drive system on the driven rolling wheel side support fixture (40). The other end of the active side drive system is connected to one end of the driven side drive system through the telescopic coupling (27). Both the active side drive system and the driven side drive system are engaged with the rolling part (10). The torque loading motor (26) is connected to the active side drive system to control the transmission torque of the rolling part (10), and the speed control motor (28) is connected to the driven side drive system to control the speed of the rolling part (10).

2. The energy-saving high-precision rolling mill according to claim 1, characterized in that: The active side drive system includes an active rolling assembly, an active rolling bearing housing coupling (22), a gearbox (23), a gearbox input coupling (24), and a mechanical loading gearbox (25). The active rolling assembly is mounted on the upper surface of the active rolling wheel side support fixture (30). The active rolling assembly is connected to the input shaft of the gearbox (23) through the active rolling bearing housing coupling (22). The output shaft of the gearbox (23) is connected to the input shaft of the mechanical loading gearbox (25) through the gearbox input coupling (24). The output shaft of the mechanical loading gearbox (25) is connected to one end of the telescopic coupling (27).

3. The energy-saving high-precision rolling mill according to claim 2, characterized in that: The active rolling assembly includes an active rolling wheel and an active rolling bearing housing (21). The active rolling wheel is rotatably mounted on the active rolling bearing housing (21). The active rolling bearing housing (21) is mounted on the upper surface of the active rolling wheel side support fixture (30). One end of the wheel axle of the active rolling wheel is connected to the active rolling bearing housing coupling (22).

4. An energy-saving high-precision rolling mill according to claim 1 or 3, characterized in that: The driven side transmission system includes a driven rolling assembly, a reversing bevel gearbox (29), and a driven rolling bearing housing coupling (210). The driven rolling assembly is connected to the output shaft of the reversing bevel gearbox (29) through the driven rolling bearing housing coupling (210), and the input shaft of the reversing bevel gearbox (29) is connected to the other end of the telescopic coupling (27).

5. The energy-saving high-precision rolling mill according to claim 4, characterized in that: The driven rolling assembly includes a driven rolling wheel and a driven rolling bearing housing (211). The driven rolling wheel is rotatably mounted on the driven rolling bearing housing (211). The driven rolling bearing housing (211) is mounted on the upper surface of the driven rolling wheel side support clamp (40). One end of the wheel shaft of the driven rolling wheel is connected to the driven rolling bearing housing coupling (210).

6. The energy-saving high-precision rolling mill according to claim 5, characterized in that: The driven rolling roller side support fixture (40) includes an upper fixture (41), a lower support (43) and two driven servo drive devices (42). The upper fixture (41) is located directly above the lower support (43). The driven servo drive device (42) is a transverse linear module. The two transverse linear modules are horizontally mounted side by side on the upper surface of the lower support (43) in a direction perpendicular to the axis of the rolling part (10). The nuts of the two transverse linear modules are connected to the lower surface of the upper fixture (41) through connecting elements.

7. The energy-saving high-precision rolling mill according to claim 6, characterized in that: The auxiliary radial support assembly (50) includes an auxiliary bracket (51), an auxiliary servo drive device (52), a support roller bearing seat (53), and an auxiliary support roller. An auxiliary bracket (51) is provided between the active rolling bearing seat (21) and the driven rolling bearing seat (211). A support roller bearing seat (53) is provided above the auxiliary bracket (51). The auxiliary support roller is rotatably mounted on the support roller bearing seat (53). The auxiliary servo drive device (52) is a lifting linear module. The auxiliary servo drive device (52) is mounted on the auxiliary bracket (51). The nut of the auxiliary servo drive device (52) is connected to the support roller bearing seat (53) through a connecting element.

8. The energy-saving high-precision rolling mill according to claim 7, characterized in that: The rolling element (10) is a rod with a helical structure, and the rolling element (10) meshes with both the driving rolling wheel and the driven rolling wheel.

9. The energy-saving high-precision rolling mill according to claim 8, characterized in that: The mechanical loading gearbox (25) adopts a differential planetary configuration. The sun gear of the mechanical loading gearbox (25) drives the active rolling wheel after being reduced in speed by the gearbox input coupling (24) and the gearbox (23). The gear ring of the mechanical loading gearbox (25) is connected to the telescopic coupling (27) after being reversed by bevel gear meshing, and then connected to the driven rolling bearing housing coupling (210) and the driven rolling bearing housing (211) after being reversed by the reversing bevel gearbox (29). The planet carrier of the mechanical loading gearbox (25) is connected to the torque loading motor (26) after being accelerated.

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