Energy-saving high-precision roll finishing equipment

Abstract

The invention discloses energy-saving high-precision roll finishing equipment, and relates to the field of machining equipment. The problems that an existing rolling machine tool is complex in control mode, the stress state of a rolling part is poor, rolling force is limited by friction force, the loading capacity range of the rolling force is small, the quality of a machined part is low, and the diameter of the machined part is limited by the deflection angle capacity of a coupler are solved. A driving side transmission system is installed on a driving rolling wheel side supporting clamp, a driven side transmission system is installed on a driven rolling wheel side supporting clamp, the other end of the driving side transmission system is connected with one end of the driven side transmission system through a telescopic coupler, and the driving side transmission system and the driven side transmission system are both meshed with a rolling piece. The torque loading motor is connected with the driving side transmission system to control the transmission torque of the rolling piece, and the rotating speed control motor is connected with the driven side transmission system to control the rotating speed of the rolling piece. The rolling device is used for improving the stress stability in the rolling process and meanwhile widening the diameter application range of a rolling piece.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing equipment, and in particular to energy-saving high-precision rolling processing equipment. Background Art

[0002] Rolling is a non-cutting forming method that applies pressure to the workpiece through a pair or a group of rotating dies (rollers) to cause 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, which is especially effective for mass-produced parts. Rolling machines can be used to manufacture parts of various shapes, such as gears, threads, shaft parts, etc.

[0003] However, rolling processing is also prone to surface defects such as adhesion caused by poor cooling, bending deformation caused by uneven stress, and defects such as degradation of material properties due to excessive temperature caused by poor heat dissipation. The above problems are particularly prone to occur when processing large-sized and super-hard materials. The above defects are mainly due to the principle of traditional rolling processing. Traditional rolling machines use power sources such as motors to drive the reduction gearbox to drive the rollers to rotate, and at the same time, a pair or a group of rollers actively apply pressure to the workpiece to cause plastic deformation of the workpiece. For example, when processing threaded parts, the friction force generated by the applied positive pressure and the driving torque generated by the driving force must be balanced to ensure smooth rolling movement. When processing large or super-hard materials, in order to deform the workpiece, the rollers will need to apply a large positive pressure. Due to the force relationship, this will cause increased friction and generate a lot of heat, and the power source must have closed-loop control of speed and torque. The positive pressure applying device of the roller should be well controlled; and when processing threaded or screw parts, since the rolling wheels are all active wheels, the axial force on the processed parts is in one direction, which will lead to different stress states on both sides of the processed spiral surface, which is easy to cause uneven stress, resulting in defects such as bending deformation; in addition, in order to adapt to workpieces of different diameters, traditional rolling machines often adjust the center distance through universal joint couplings with large angular compensation. When the universal joint coupling is angularly deflected, the transmitted torque will fluctuate periodically, which will cause the force on the workpiece to fluctuate, which is easy to cause defects such as poor dimensional accuracy. Therefore, it is necessary to upgrade the traditional rolling equipment, simplify its control mode, optimize the force state of the rolled parts, avoid the rolling force being limited by friction, and increase the loading capacity range of the rolling force, thereby improving the quality of the workpiece, especially for the rolling processing of large and high-hardness materials, and at the same time improve the diameter of the workpiece processed by the traditional rolling machine limited by the coupling deflection angle. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of existing rolling machines, such as complex control mode, inconsistent force states on both sides of the rolled parts, rolling force limited by friction, small loading capacity range of rolling force, low quality of workpieces, and workpiece diameter limited by the deflection angle capacity of the coupling. Specifically, in order to overcome the problem that the traditional rolling machine uses a pair or a group of rollers to actively apply pressure to the workpiece at the same time, the rolling wheels are all active wheels, and the axial force on the processed parts is in one direction, resulting in inconsistent force states on both sides of the processed spiral surface, which is prone to uneven stress and thus causes defects such as bending and deformation; at the same time, in order to overcome the problem that the rolling wheels of the traditional rolling machine are all active wheels, the friction distance generated by the applied positive pressure and the driving torque generated by the driving force must be balanced to ensure the smooth rolling movement. When processing large or super-hard materials, the friction force increases, a lot of heat will be generated, and the speed and torque control are more complicated; in order to overcome the problem that the traditional rolling machine often adjusts the center distance through a universal joint coupling with a large angular compensation amount in order to adapt to workpieces of different diameters, when the universal joint coupling is angularly deflected, the transmitted torque will fluctuate periodically, resulting in fluctuations in the force on the workpiece, causing the dimensional accuracy to deteriorate; at the same time, the problem that the diameter of the workpiece processed by the traditional rolling machine is limited by the coupling deflection angle capacity is overcome. Thus, an energy-saving high-precision rolling processing equipment is provided.

[0005] The technical solution of the present invention is:

[0006] An energy-saving high-precision rolling processing equipment, which includes a mechanical power closed transmission system, an active rolling wheel side support fixture 30, a driven rolling wheel side support fixture 40 and an auxiliary radial support assembly 50, the active rolling wheel side support fixture 30 and the driven 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 rolling part 10 and a rolling transmission system 20, the rolling part 10 is arranged above the auxiliary radial support assembly 50, and the rolling transmission system 20 includes an active side transmission system, a driven side transmission system, a telescopic Coupling 27, torque loading motor 26 and speed control motor 28, the active side transmission system is installed on the active rolling wheel side support fixture 30, the driven side transmission system is installed on the driven rolling wheel side support fixture 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, the active side transmission system and the driven side transmission system are both engaged with the rolling part 10, the torque loading motor 26 is connected to the active side transmission system to control the transmission torque of the rolling part 10, and the speed control motor 28 is connected to the driven side transmission system to control the speed of the rolling part 10.

[0007] Furthermore, the active side transmission system includes an active rolling assembly, an active rolling bearing seat coupling 22, a reduction gear box 23, a reduction gear box input coupling 24 and a mechanical loading gear box 25. The active rolling assembly is installed 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 gear box 23 through the active rolling bearing seat coupling 22. The output shaft of the reduction gear box 23 is connected to the input shaft of the mechanical loading gear box 25 through the reduction gear box input coupling 24. The output shaft of the mechanical loading gear box 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 seat 21, the active rolling wheel is rotatably mounted on the active rolling bearing seat 21, the active rolling bearing seat 21 is mounted on the upper surface of the active rolling wheel side support fixture 30, and one end of the wheel axle of the active rolling wheel is connected to the active rolling bearing seat coupling 22.

[0009] Furthermore, the driven side transmission system includes a driven rolling assembly, a reversing bevel gear box 29 and a driven rolling bearing seat coupling 210. The driven rolling assembly is connected to the output shaft of the reversing bevel gear box 29 through the driven rolling bearing seat coupling 210, and the input shaft of the reversing bevel gear box 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 seat 211, the driven rolling wheel is rotatably mounted on the driven rolling bearing seat 211, the driven rolling bearing seat 211 is mounted on the upper surface of the driven rolling wheel side support fixture 40, and one end of the wheel axle of the driven rolling wheel is connected to the driven rolling bearing seat coupling 210.

[0011] Furthermore, the driven rolling wheel side support fixture 40 includes an upper fixture 41, a lower bracket 43 and two driven servo drive devices 42. The upper fixture 41 is arranged directly above the lower bracket 43. The driven servo drive device 42 is a transverse linear module. The two transverse linear modules are horizontally installed side by side on the upper surface of the lower bracket 43 along 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.

[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. 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 installed 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 member 10 is a rod with a spiral structure, and the rolling member 10 is meshed with the active rolling wheel and the driven rolling wheel at the same time.

[0014] Furthermore, the mechanical loading gearbox 25 adopts a differential planetary form, and the sun gear of the mechanical loading gearbox 25 drives the active rolling wheel after being decelerated by the reduction box 23 through the reduction box input coupling 24; the ring gear of the mechanical loading gearbox 25 is connected to the telescopic coupling 27 after being reversed by the bevel gear meshing, and then connected to the driven rolling bearing seat coupling 210 and the driven rolling bearing seat 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 increased in speed.

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

[0016] 1. The present invention adopts the principle of mechanical power closed energy feedback. The speed and torque control of the entire mechanical power closed transmission system are controlled 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 to control the torque and speed, the control is simpler;

[0017] 2. The present invention regards the workpiece as a part of the mechanical power closed transmission system. The rolling wheels include active rolling wheels and passive rolling wheels. Different from the traditional rolling device, the rolling wheels are all active wheels, which changes the stress state of the rolled part, so that both sides of the rolled part surface are subjected to rolling pressure, improves the force uniformity, avoids the deformation of the rolled part caused by uneven stress, and overcomes the problem that the axial force on the processed parts of the traditional rolling device is in one direction, resulting in inconsistent stress states on both sides of the processed spiral surface, which is prone to uneven stress and thus causes bending deformation defects;

[0018] 3. The present invention adopts the principle of mechanical power closed energy feedback. The torque caused by the rolling force of the rolling part is balanced by the active rolling wheel and the passive rolling wheel, and will not be limited by the friction torque. The rolling force is determined by the closed power of the mechanical power closed transmission system. Compared with the traditional rolling machine, the rolling wheels are all active wheels. The friction moment generated by the applied positive pressure and the driving torque generated by the driving force must be balanced to ensure the smooth rolling movement. The rolling heat is large when processing large and high-hard materials. The present invention adopts the principle of mechanical power closed energy feedback to improve the heating state, increase the rolling force, and adapt to the rolling processing of large and high-hard materials. At the same time, due to the adoption of the principle of mechanical power closed energy feedback, the operation efficiency is higher;

[0019] 4. In addition, a telescopic coupling is used to connect the active side transmission system and the driven side transmission system of the mechanical power closed transmission system of the present invention. When adapting to rolled parts of different diameters and dimensional changes during the rolling process, the servo displacement control system can control the driven side transmission system as a whole to move perpendicular to the axis of the telescopic coupling, ensuring that the postures of the active rolling bearing seat coupling and the driven rolling bearing seat coupling remain unchanged, overcoming the problem of force fluctuations on the rolled parts caused by the angular deviation of the universal joint coupling when the traditional rolling device adjusts the center distance, ensuring the smooth transmission of speed and torque, improving the force stability of the rolling process and increasing the diameter adaptation range of the rolled parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a transmission principle diagram of an energy-saving high-precision rolling processing equipment described in the present invention, which is used to illustrate the principle of the present invention; Figure 2 This is the transmission principle diagram of the traditional rolling device. Figure 1 Make a comparison to illustrate the stress state; Figure 3 It is an isometric view of an energy-saving high-precision rolling processing equipment according to the present invention, which is used to specifically show the main components of the equipment; Figure 4 It is an isometric view of an energy-saving high-precision rolling processing equipment according to the present invention with the rolling processing part hidden, which is used to show the main components of the equipment in detail; Figure 5 It is a front view of an energy-saving high-precision rolling processing equipment according to the present invention after the rolling processing part is hidden, which is used to show the center distance adjustment and axial force analysis in detail; Figure 6 It is a side view of the energy-saving high-precision rolling processing equipment described in the present invention after the rolling processing part is hidden, which is used to show the tangential force and radial force analysis in detail.

[0021] In the figure: 10, rolling parts; 20, rolling transmission system; 21, active rolling bearing seat; 22, active rolling bearing seat coupling; 23, reduction box; 24, reduction box input coupling; 25, mechanical loading gearbox; 26, torque loading motor; 27, telescopic coupling; 28, speed control motor; 29, reversing bevel gearbox; 210, driven rolling bearing seat coupling; 211, driven rolling bearing seat; 30, active rolling wheel side support fixture; 40, driven rolling wheel side support fixture; 41, upper fixture; 42, driven servo drive device; 43, lower bracket; 50, auxiliary radial support assembly; 51, auxiliary bracket; 52, auxiliary servo drive device; 53, support roller bearing seat. DETAILED DESCRIPTION

[0022] Specific implementation method 1: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present embodiment is described. The present embodiment is an energy-saving high-precision rolling processing equipment, which includes a mechanical power closed transmission system, an active rolling wheel side support fixture 30, a driven rolling wheel side support fixture 40 and an auxiliary radial support assembly 50. The active rolling wheel side support fixture 30 and the driven 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 rolling part 10 and a rolling transmission system 20. The rolling part 10 is arranged 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 driven side transmission system. Transmission system, telescopic coupling 27, torque loading motor 26 and speed control motor 28, the active side transmission system is installed on the active rolling wheel side support fixture 30, the driven side transmission system is installed on the driven rolling wheel side support fixture 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, the active side transmission system and the driven side transmission system are both engaged with the rolling part 10, the torque loading motor 26 is connected to the active side transmission system to control the transmission torque of the rolling part 10, and the speed control motor 28 is connected to the driven side transmission system to control the speed of the rolling part 10.

[0023] Specific implementation method 2: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment is described. The active side transmission system of this embodiment includes an active rolling assembly, an active rolling bearing seat coupling 22, a reduction box 23, a reduction box input coupling 24 and a mechanical loading gear box 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 box 23 through the active rolling bearing seat coupling 22. The output shaft of the reduction box 23 is connected to the input shaft of the mechanical loading gear box 25 through the reduction box input coupling 24. The output shaft of the mechanical loading gear box 25 is connected to one end of the telescopic coupling 27. Other components and connection relationships are the same as those of the first embodiment.

[0024] Specific implementation method three: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6This embodiment is described. The active rolling assembly of this embodiment includes an active rolling wheel and an active rolling bearing seat 21. The active rolling wheel is rotatably mounted on the active rolling bearing seat 21. The active rolling bearing seat 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 seat coupling 22. In this way, the active rolling wheel side support fixture 30 mainly supports the active rolling bearing seat 21, the active rolling bearing seat coupling 22, the reduction box 23, the reduction box input coupling 24, the mechanical loading gearbox 25 and the torque loading motor 26. Other components and connection relationships are the same as those of the specific embodiment one or two.

[0025] Specific implementation method four: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment is described. The driven side transmission system of this embodiment includes a driven rolling assembly, a reversing bevel gear box 29 and a driven rolling bearing seat coupling 210. The driven rolling assembly is connected to the output shaft of the reversing bevel gear box 29 through the driven rolling bearing seat coupling 210, and the input shaft of the reversing bevel gear box 29 is connected to the other end of the telescopic coupling 27. Other components and connection relationships are the same as those of the specific embodiments one, two or three.

[0026] Specific implementation method five: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment is described. The driven rolling assembly of this embodiment includes a driven rolling wheel and a driven rolling bearing seat 211. The driven rolling wheel is rotatably mounted on the driven rolling bearing seat 211. The driven rolling bearing seat 211 is mounted on the upper surface of the driven rolling wheel side support fixture 40. One end of the wheel axle of the driven rolling wheel is connected to the driven rolling bearing seat coupling 210. In this way, the driven rolling wheel side support fixture 40 mainly supports the speed control motor 28, the reversing bevel gear box 29, the driven rolling bearing seat coupling 210 and the driven rolling bearing seat 211. Other components and connection relationships are the same as those of the 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 is described. The driven rolling wheel side support fixture 40 of this embodiment includes an upper fixture 41, a lower bracket 43 and two driven servo drive devices 42. The upper fixture 41 is arranged directly above the lower bracket 43. The driven servo drive device 42 is a transverse linear module. The two transverse linear modules are horizontally installed side by side on the upper surface of the lower bracket 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 a connecting element. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four or five.

[0028] Specific implementation method seven: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The auxiliary radial support assembly 50 of the present embodiment 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 arranged between the active rolling bearing seat 21 and the driven rolling bearing seat 211. The support roller bearing seat 53 is arranged 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. In this way, the auxiliary radial support assembly 50 can mainly support the radial force of the rolling part 10 during the rolling process. Through the auxiliary radial support assembly 50, the whole set of equipment can realize continuous production, which is suitable for continuous rolling processing of parts such as screws. If the auxiliary radial support assembly 50 adopts the form of no support roller bearing seat 53, but directly supports the rolling part 10 through the top bearing seat, etc., it is also a feasible solution, but the continuous production performance is reduced, which is suitable for processing small batches of single pieces. The other components and connection relationships are the same as those of the specific implementation modes one, two, three, four, five or six.

[0029] Specific implementation method eight: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 To explain this embodiment, the rolling member 10 of this embodiment is a rod with a spiral structure, and the rolling member 10 is meshed with the active rolling wheel and the driven rolling wheel at the same time. In this way, the rolling member 10 can be a part such as a worm, a bolt, etc., which has a spiral structure and can transmit torque and motion through meshing. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five, six or seven.

[0030] Specific implementation method nine: Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 To explain this embodiment, the mechanical loading gearbox 25 of this embodiment adopts a differential planetary form. The sun gear of the mechanical loading gearbox 25 drives the active rolling wheel after being decelerated by the reduction box 23 through the reduction box input coupling 24; the ring gear of the mechanical loading gearbox 25 is connected to the telescopic coupling 27 after being reversing through the bevel gear meshing, and then connected to the driven rolling bearing seat coupling 210 and the driven rolling bearing seat 211 after being reversing through the reversing bevel gearbox 29. In this way, the axes of the active rolling bearing seat 21 and the driven rolling bearing seat 211 are parallel, and the upper clamp 41 is driven by the driven servo drive device 42 to vertically align the active rolling bearing seat 21 and the driven rolling bearing seat 2 11 axis moves with high precision. During the movement, the length L of the telescopic coupling 27 changes the center distance B between the active rolling bearing seat 21 and the driven rolling bearing seat 211. This process can be adjusted statically or dynamically to adapt to different specifications of rolling parts 10 and the diameter changes during the rolling process. In this process, all coupling transmission equipment works in a normal posture, and the force is reasonable to ensure the uniform force of the rolling part 10, which is conducive to improving the processing accuracy; the planetary frame of the mechanical loading gearbox 25 is connected to the torque loading motor 26 after the speed is increased, and 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 to form a closed loop, and energy feedback is formed inside. Other components and connection relationships are the same as those of the 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 a part of the mechanical power closed transmission system. The rolling transmission system 20 mainly includes a reduction box 23, a mechanical loading gear box 25 and a reversing bevel gear box 29, three transmission boxes.

[0032] How it works

[0033] Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6The working principle of the energy-saving and high-precision rolling processing equipment described in the present invention is explained: first, the present invention adopts the principle of mechanical power closed energy feedback, and regards the workpiece as a part of the mechanical power closed transmission system. The speed and torque control of the entire mechanical power closed transmission system are controlled by different control motors, and the torque and speed control are independent; there are active rolling wheels and passive rolling wheels in the rolling wheels, which change the stress state of the rolling part 10, so that both sides of the rolling part 10 are subjected to rolling pressure, thereby improving the uniformity of force and avoiding deformation of the rolling part 10 caused by uneven stress; and the torque caused by the rolling pressure of the rolling part 10 is balanced by the active rolling wheel and the passive rolling wheel, and will not be limited by the friction torque. The rolling pressure is determined by the closed power of the mechanical power closed transmission system, thereby improving The heating state is improved, the rolling force is increased, and the rolling processing of large and high-hard materials is adapted. At the same time, due to the adoption of the mechanical power closed energy feedback principle, the operating efficiency is higher. In addition, the active side transmission system and the driven side transmission system of the mechanical power closed transmission system are connected by a telescopic coupling 27. When adapting to rolled parts 10 of different diameters and size changes during the rolling process, the driven servo drive device 42 can control the driven side transmission system as a whole to move perpendicular to the axis of the telescopic coupling 27, ensuring that the active rolling bearing seat coupling 22 and the driven rolling bearing seat coupling 210 remain unchanged in their postures, ensuring the smooth transmission of speed and torque, and improving the force stability of the rolling process, thereby helping to improve the rolling processing accuracy and at the same time increasing the diameter adaptation range of the rolled part 10.

[0034] The speed of the rolling part 10 is controlled by the speed control motor 28, and the transmission torque of the rolling part 10 is controlled by the torque loading motor 26. The torque and speed are controlled independently, and various control modes such as constant speed and variable torque, constant torque and variable speed can be realized, and the control is flexible. Through the force analysis diagram, it can be seen that: when the active rolling wheel is meshed with the rolling part 10, the active rolling wheel is the active wheel and the rolling part 10 is the driven wheel; when the rolling part 10 is meshed with the driven rolling wheel, the rolling part 10 is the active wheel and the rolling part 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 balanced radial force Fr in the opposite direction brought by its meshing with the active rolling wheel and the driven rolling wheel, as well as opposite axial forces Fa1 and Fa2. The tangential forces in the same direction are balanced by the radial supporting force of the auxiliary supporting roller. The auxiliary servo drive device 52 can drive the auxiliary supporting roller to move with high precision. This process can be adjusted statically or dynamically to adapt to rolling parts 10 of different specifications and diameter changes 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, generally, the driving motor S5 drives the reduction gearbox S3 through the driving motor coupling S4. The reduction gearbox S3 has two output ends, and the output ends are generally connected to the universal coupling S1 and the universal coupling S2 with large-angle deflection capability. The meshing analysis of the rolling member 10 with the traditional rolling wheel S6 and the traditional rolling wheel S7 shows that: the traditional rolling wheel S6 and the traditional rolling wheel S7 are both driving wheels, and the rolling member 10 is the driven wheel. From the force analysis of the driven wheel, it can be seen that the driven wheel is subjected to two reverse tangential forces Ft1 and Ft2 and the radial force Fr in opposite directions balanced by the meshing of the traditional rolling wheel S6 and the traditional rolling wheel S7, as well as the opposite axial forces Fa1 and Fa2. The rotational torque caused by the two reverse tangential forces Ft1 and Ft2 is given by The friction counter-rotation torque balance brought by the rolling positive pressure of the F pressure can be seen that the rolled part 10 is subjected to the same axial force, and the forces on both sides of the rolling characteristic surface of the rolled part 10 are inconsistent. One side is subjected to a larger axial force, which easily causes uneven internal stress of the rolled part 10. In addition, the tangential forces Ft1, Ft2 and radial force Fr are affected by the friction force during the rolling process. When the rolling force is large, the friction heat generation increases; in addition, when the center distance B of the traditional rolling wheel S6 and the traditional rolling wheel S7 is changed to adapt to the size of different rolled parts 10, the universal coupling S2 will often deviate by an angle α. When the coupling deviates, it will definitely cause torque fluctuations due to the large angle compensation of the compensation element, which will cause force fluctuations on the rolled part 10 and cause quality problems such as accuracy. At the same time, the angular deflection angle of the coupling is limited, thereby limiting the adaptability of the processing equipment to the size of the rolled part 10.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving high-precision rolling processing equipment, characterized in that: It comprises a mechanical power closed transmission system, an active rolling wheel side support fixture (30), a driven rolling wheel side support fixture (40) and an auxiliary radial support assembly (50), wherein the active rolling wheel side support fixture (30) and the driven rolling wheel side support fixture (40) are arranged side by side at the front and rear sides of the auxiliary radial support assembly (50), wherein the mechanical power closed transmission system comprises a rolling part (10) and a rolling transmission system (20), wherein the rolling part (10) is arranged above the auxiliary radial support assembly (50), and the rolling transmission system (20) comprises an active side transmission system, a driven side transmission system, a telescopic coupling (27), A torque loading motor (26) and a speed control motor (28), an active side transmission system is mounted on an active rolling wheel side support fixture (30), a driven side transmission system is mounted on a driven rolling wheel side support fixture (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), the active side transmission system and the driven side transmission system are both engaged 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).

2. The energy-saving high-precision rolling processing equipment according to claim 1 is characterized in that: The active side transmission system comprises an active rolling assembly, an active rolling bearing seat coupling (22), a reduction box (23), a reduction box input coupling (24) and a mechanical loading gear box (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 box (23) through the active rolling bearing seat coupling (22); the output shaft of the reduction box (23) is connected to the input shaft of the mechanical loading gear box (25) through the reduction box input coupling (24); and the output shaft of the mechanical loading gear box (25) is connected to one end of the telescopic coupling (27).

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

4. The energy-saving high-precision rolling processing equipment according to claim 1 or 3, characterized in that: The driven side transmission system comprises a driven rolling assembly, a reversing bevel gear box (29) and a driven rolling bearing seat coupling (210); the driven rolling assembly is connected to the output shaft of the reversing bevel gear box (29) via the driven rolling bearing seat coupling (210); and the input shaft of the reversing bevel gear box (29) is connected to the other end of the telescopic coupling (27).

5. The energy-saving high-precision rolling processing equipment according to claim 4 is characterized in that: The driven rolling assembly comprises a driven rolling wheel and a driven rolling bearing seat (211), wherein the driven rolling wheel is rotatably mounted on the driven rolling bearing seat (211), wherein the driven rolling bearing seat (211) is mounted on the upper surface of a driven rolling wheel side support fixture (40), and one end of the wheel axle of the driven rolling wheel is connected to the driven rolling bearing seat coupling (210).

6. The energy-saving high-precision rolling processing equipment according to claim 5 is characterized in that: The driven rolling wheel side support fixture (40) comprises an upper fixture (41), a lower bracket (43) and two driven servo drive devices (42); the upper fixture (41) is arranged directly above the lower bracket (43); the driven servo drive device (42) is a transverse linear module; the two transverse linear modules are horizontally and side by side installed on the upper surface of the lower bracket (43) along 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 a connecting element.

7. The energy-saving high-precision rolling processing equipment according to claim 6 is characterized in that: The auxiliary radial support assembly (50) comprises 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 arranged between the active rolling bearing seat (21) and the driven rolling bearing seat (211). The support roller bearing seat (53) is arranged 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 processing equipment according to claim 7 is characterized in that: The rolling member (10) is a rod member with a spiral structure, and the rolling member (10) is meshed with the active rolling wheel and the driven rolling wheel at the same time.

9. The energy-saving high-precision rolling processing equipment according to claim 8 is characterized in that: The mechanical loading gearbox (25) adopts a differential planetary form. The sun gear of the mechanical loading gearbox (25) drives the active rolling wheel after being decelerated by the reduction box (23) through the reduction box input coupling (24); the ring gear of the mechanical loading gearbox (25) is connected to the telescopic coupling (27) after being reversing through the bevel gear meshing, and is then connected to the driven rolling bearing seat coupling (210) and the driven rolling bearing seat (211) after being reversing through the reversing bevel gearbox (29); the planet carrier of the mechanical loading gearbox (25) is connected to the torque loading motor (26) after being increased in speed.

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