Large powerful numerical control spinning machine

Abstract

The utility model discloses a large powerful numerical control spinning machine which comprises a round spinning workbench connected with a servo motor driving the round spinning workbench to rotate. The main shaft abuts against the circle center of the spinning working platform, the main shaft is arranged below the spinning working platform and is perpendicular to the spinning working platform, one end of the main shaft abuts against the spinning working platform, and the main shaft and the spinning working platform can rotate synchronously; the supporting mechanism is arranged below the spinning workbench, and the supporting mechanism is arranged on one side of the main shaft and is parallel to the main shaft; wherein the supporting mechanism comprises a rolling wheel and a driver, the rolling wheel is connected to the driving end of the driver and faces the spinning workbench, and the driver can drive the rolling wheel to support the spinning workbench. The supporting effect of the driving rollers on the spinning workbench is achieved, and the pressure on the main shaft is shared.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing equipment, in particular to a large-scale powerful CNC spinning machine. Background Art

[0002] Spinning refers to a process in which the sheet metal blank is axially clamped in the forming die, and the die and the blank are rotated under the drive of the double axis, and the metal blank is continuously squeezed in the radial direction by the forming wheel, so that the metal blank is gradually deformed, and finally the desired shape is formed on the axial surface and the outer surface of the cylinder. This forming process is the flow and plastic deformation of the metal. The appropriate selection of the metal blank material, the spinning forming wheel, the spinning force and the feed speed can form a metal surface with high hardness, high wear resistance and high finish on the forming surface.

[0003] Spinning machines can be divided into general spinning machines and high-power spinning machines according to their deformation characteristics, and can be divided into horizontal spinning machines and vertical spinning machines according to the bed structure. In the spinning production of large products, vertical high-power spinning machines are usually used because the product itself is very heavy.

[0004] The spinning table of a high-power spinning machine is usually very heavy, and its load may reach more than a thousand tons. Since the spinning table is usually very heavy, it is troublesome to remove the spinning table from the main shaft. Improper operation may cause the spinning table to fall, causing losses to the producer. Since the spinning table keeps rotating in the working state, when a product is spun, the spinning table needs to stop rotating, and then another product blank is placed on the spinning table for spinning. Since the spinning table is usually very heavy and has a large inertia, when the spinning table stops working and the power source is turned off, the spinning table will continue to rotate for a period of time due to inertia. The next product blank can be placed on the table only when the spinning table stops rotating completely. This period of waiting time for the table to stop rotating seriously affects the production efficiency.

[0005] The ultra-heavy vertical high-power spinning machine in the prior art is provided with a base for fixed connection with the bed, a turntable for carrying the core mold, an output shaft for outputting driving force to the turntable, and a reduction box for transmitting power to the output shaft, wherein the vertical axis of the base is rotatably connected with the turntable through a bearing, so that the turntable can perform a rotary motion on a horizontal plane. This scheme is also only a design scheme for driving the worktable, and cannot solve the problem of accelerating the speed of the worktable from rotating to stationary, nor can it play a role in facilitating the disassembly of the worktable. Utility Model Content

[0006] The utility model provides a large-scale powerful CNC spinning machine, which solves the problems in the prior art that the working table of the super heavy vertical powerful spinning machine has a slow speed from rotating to stationary and is inconvenient to disassemble the working table.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a large-scale powerful CNC spinning machine for processing thick special strong alloy steel, including

[0008] A circular spinning table is connected to a servo motor for driving the table to rotate;

[0009] A main shaft is abutted against the center of the spinning worktable, the main shaft is arranged below the spinning worktable and is perpendicular to the spinning worktable, and one end of the main shaft is abutted against the spinning worktable, and the main shaft and the spinning worktable can keep synchronous rotation; and

[0010] A supporting mechanism is arranged below the spinning workbench, and the supporting mechanism is arranged on one side of the main shaft and parallel to the main shaft;

[0011] Wherein, the supporting mechanism includes a roller and a driver, the roller is connected to the driving end of the driver and faces the spinning workbench, and the driver can drive the roller to support the spinning workbench.

[0012] Optionally, three supporting mechanisms are provided, and the three supporting mechanisms are evenly distributed along the circumference of the spinning workbench.

[0013] Optionally, the rolling direction of the roller is the circumferential direction of the spinning workbench, and when the roller supports the spinning workbench, the roller rolls along with the rotation of the spinning workbench.

[0014] Optionally, the driver is a cylinder.

[0015] Optionally, the roller is connected to the driving end of the driver via a connecting member, and the connecting member is provided with a first connecting portion and a second connecting portion, the first connecting portion is connected to the axis of the roller via a rotating shaft, and the second connecting portion is fixedly connected to the driving end of the driver.

[0016] Optionally, the connecting member and the driving end of the driver are an integrated structure.

[0017] Optionally, a shaft sleeve is provided on the outer side of the main shaft, and a rolling bearing is provided between the main shaft and the shaft sleeve.

[0018] Optionally, a lower pressure cover is connected below the main shaft, and the lower pressure cover supports the large-scale high-power CNC spinning machine.

[0019] Optionally, the servo motor is connected to the spinning workbench via a transmission assembly.

[0020] Optionally, the transmission assembly includes a reducer, a transmission gear and a workbench gear, the reducer is connected between the servo motor and the transmission gear, the workbench gear is a circular gear, fixed to the spinning workbench and arranged along the circumference of the spinning workbench, and the transmission gear and the workbench gear are engaged with each other.

[0021] The beneficial effects of the utility model are as follows: the utility model arranges a supporting mechanism under the circular spinning worktable, and the supporting mechanism is provided with rollers and a driver, the rollers are connected to the driving end of the driver and face the spinning worktable, the driver can drive the rollers to support and lift up the spinning worktable, when the spinning worktable needs to be disassembled, the driver drives the rollers to lift up one end of the spinning worktable to provide a working space for the disassembly or transportation device, thereby facilitating disassembly; on the other hand, when the spinning worktable needs to stop from a rotating state, the supporting mechanism supports the spinning worktable, and the spinning worktable will accelerate the speed of stopping rotation due to the friction force of the rollers, thereby improving production efficiency; the driving roller realizes the supporting effect of the spinning worktable on the driving roller to share the pressure on the spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional schematic diagram in an embodiment of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the support mechanism in the embodiment of the utility model.

[0025] The numbers or letters in the figure represent the names of the corresponding components or process names: 1. Spinning table; 2. Servo motor; 3. Spindle; 31. Bushing; 32. Rolling bearing; 33. Lower pressure cover; 4. Support mechanism; 41. Roller; 42. Driver; 43. Connector; 431. First connecting part; 432. Second connecting part; 5. Transmission assembly; 51. Reducer; 52. Transmission gear; 53. Table gear.

[0026] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Spinning refers to a process in which the sheet metal blank is axially clamped in the forming die, and the die and the blank are rotated under the drive of the double axis, and the metal blank is continuously squeezed in the radial direction by the forming wheel, so that the metal blank is gradually deformed, and finally the desired shape is formed on the axial surface and the outer surface of the cylinder. This forming process is the flow and plastic deformation of the metal. The appropriate selection of the metal blank material, the spinning forming wheel, the spinning force and the feed speed can form a metal surface with high hardness, high wear resistance and high finish on the forming surface.

[0029] Spinning machines can be divided into general spinning machines and high-power spinning machines according to their deformation characteristics, and can be divided into horizontal spinning machines and vertical spinning machines according to the bed structure. In the spinning production of large products, vertical high-power spinning machines are usually used because the product itself is very heavy.

[0030] The spinning table of a high-power spinning machine is usually very heavy, and its load may reach more than a thousand tons. Since the spinning table is usually very heavy, it is troublesome to remove the spinning table from the main shaft. Improper operation may cause the spinning table to fall, causing losses to the producer. Since the spinning table keeps rotating in the working state, when a product is spun, the spinning table needs to stop rotating, and then another product blank is placed on the spinning table for spinning. Since the spinning table is usually very heavy and has a large inertia, when the spinning table stops working and the power source is turned off, the spinning table will continue to rotate for a period of time due to inertia. The next product blank can be placed on the table only when the spinning table stops rotating completely. This period of waiting time for the table to stop rotating seriously affects the production efficiency.

[0031] The ultra-heavy vertical high-power spinning machine in the prior art is provided with a base for fixed connection with the bed, a turntable for carrying the core mold, an output shaft for outputting driving force to the turntable, and a reduction box for transmitting power to the output shaft, wherein the vertical axis of the base is rotatably connected with the turntable through a bearing, so that the turntable can perform a rotary motion on a horizontal plane. This scheme is also only a design scheme for driving the worktable, and cannot solve the problem of accelerating the speed of the worktable from rotating to stationary, nor can it play a role in facilitating the disassembly of the worktable.

[0032] Embodiment 1:

[0033] This embodiment provides a large-scale powerful CNC spinning machine, such as Figure 1 As shown, it includes a circular spinning worktable 1, which is connected to a servo motor 2 for driving its rotation. In the description of this embodiment, a large-scale powerful CNC spinning machine is used to perform spinning processing on heavy-weight products, and the corresponding circular spinning worktable 1 also has a large weight. The servo motor 2 can be connected to the spinning worktable 1 through a transmission assembly 5 so as to be able to drive the heavy-weight spinning worktable 1.

[0034] In this embodiment, the spindle 3 abuts against the center of the spinning worktable, the spindle 3 is arranged below the spinning worktable 1 and is perpendicular to the spinning worktable 1, and one end of the spindle 3 abuts against the spinning worktable 1. Specifically, in the working state, the spindle 3 and the spinning worktable 1 can keep rotating synchronously.

[0035] In the description of this embodiment, the support mechanism 4 is arranged below the spinning workbench 1, and the support mechanism 4 is arranged on one side of the main shaft 3 and is parallel to the main shaft 3. Among them, the support mechanism 4 includes a roller 41 and a driver 42, and the roller 41 is a roller 41 that can roll freely, and the roller 41 is connected to the driving end of the driver 42 and faces the spinning workbench 1. The driver 42 can drive the roller 41 to support the spinning workbench 1.

[0036] Specifically, since the large-scale powerful CNC spinning machine in this embodiment is a vertical spinning machine, its main shaft 3 is vertically arranged on the ground, or arranged on the base of the spinning machine, and the base is placed on the ground. The support mechanism 4 in this embodiment can be directly fixed on the ground, or fixed on the base of the spinning machine, or fixed by other fixing devices or mechanisms to keep the support mechanism 4 in a vertical state, and the driving end of the driver 42 can lift the spinning workbench 1, which is not limited here.

[0037] The utility model arranges a supporting mechanism 4 below a circular spinning table 1, wherein the supporting mechanism 4 is provided with a roller 41 and a driver 42, wherein the roller 41 is connected to the driving end of the driver 42 and faces the spinning table 1, and the driver 42 can drive the roller 41 to support and lift up the spinning table 1. When the spinning table 1 needs to be disassembled, the driver 42 drives the roller 41 to lift up one end of the spinning table 1, thereby providing a working space for a disassembly or handling device, thereby facilitating disassembly. On the other hand, when the spinning table 1 is to stop from a rotating state, the supporting mechanism 4 supports the spinning table 1, and the spinning table 1 will accelerate the speed of stopping rotation due to the friction force of the roller 41, thereby improving production efficiency.

[0038] Embodiment 2:

[0039] This embodiment provides a large-scale powerful CNC spinning machine, such as Figure 1 As shown, the rolling direction of the roller 41 is the circumferential direction of the spinning worktable 1. When the roller 41 supports the spinning worktable 1, the roller 41 rolls with the rotation of the spinning worktable 1. When the spinning worktable 1 needs to stop rotating, when the roller 41 lifts up the spinning worktable 1, the friction between the roller 41 and the spinning worktable 1 will accelerate the stopping of the spinning worktable 1.

[0040] In one embodiment, the driver 42 is an oil cylinder, which may be a hydraulic cylinder, or other forms of driving devices, which are not limited here.

[0041] In one embodiment, if Figure 2 As shown, there are three support mechanisms 4, and the three support mechanisms 4 are evenly distributed along the circumference of the spinning table 1. There may also be more than three support mechanisms 4. When the number of support mechanisms 4 increases, when the spinning table 1 needs to be decelerated, the friction between the spinning tables 1 can be increased, and the spinning table 1 can be further accelerated to stop rotating.

[0042] Specifically, when the spinning workbench 1 needs to be disassembled, a supporting mechanism 4 can be used to drive the roller 41 to lift up the spinning workbench 1. At this time, one end of the spinning workbench 1 will be tilted up, which is convenient for applying external force to disassemble the spinning workbench 1; or multiple supporting mechanisms 4 can jointly lift up the spinning workbench 1, and reserve space under the spinning workbench 1, so that the spinning workbench 1 can be disassembled conveniently using devices or instruments.

[0043] In one embodiment, see Figure 3 The roller 41 is connected to the driving end of the driver 42 through a connecting member 43, and the connecting member 43 is provided with a first connecting portion 431 and a second connecting portion 432. The first connecting portion 431 is connected to the axis of the roller 41 through a rotating shaft, and the second connecting portion 432 is fixedly connected to the driving end of the driver 42. The connecting member 43 and the driving end of the driver 42 can be an integrated structure or a split structure, which is not limited here.

[0044] Embodiment 3:

[0045] This embodiment provides a large-scale powerful CNC spinning machine, such as Figure 1 As shown, a shaft sleeve 31 is provided on the outer side of the main shaft 3 in this embodiment, and a rolling bearing 32 is provided between the main shaft 3 and the shaft sleeve 31. Since the large-scale high-power CNC spinning machine is used for the spinning processing of heavy-weight products, the rolling bearing 32 in this embodiment adopts a group of oversized specially made large-scale rolling bearings 32 to bear the high radial and axial loads involved in the high-power spinning forming process. The maximum axial dynamic load is 11000KN, and the maximum radial dynamic load is 9870KN.

[0046] In one embodiment, a lower pressure cover 33 is connected below the main shaft 3, and the lower pressure cover 33 supports the large-scale powerful CNC spinning machine.

[0047] In one embodiment, the servo motor 2 is connected to the spinning table 1 through a transmission assembly 5. Specifically, the transmission assembly 5 includes a reducer 51, a transmission gear 52 and a table gear 53. The reducer 51 is connected between the servo motor and the transmission gear 52. The table gear 53 is a circular gear. The table gear 53 and the transmission gear 52 are engaged with each other and are fixed to the spinning table 1 and arranged circumferentially along the spinning table 1. A structure is adopted in which the spinning table 1 and the table gear 53 are fixed together. The servo motor 2 drives the table gear 53 to rotate through the reducer 51 and the transmission gear 52 to drive the spinning table 1 to rotate. There is no need to apply rotational power to the spindle 3. The working platform cooperates with the sleeve 31 to rotate radially around the center of the spindle 3. This structure makes it more stable and easy to drive, and further improves the radial and axial load capacity.

[0048] The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "top", "bottom", "inside", "outside" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. In addition, if there are terms such as "first", "second", etc., they are only used for descriptive purposes, mainly to distinguish different devices, components or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components or components, and cannot be understood as indicating or implying relative importance.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A large-scale powerful CNC spinning machine, characterized by: include A circular spinning table is connected to a servo motor for driving the table to rotate; A main shaft is abutted against the center of the spinning worktable, the main shaft is arranged below the spinning worktable and is perpendicular to the spinning worktable, and one end of the main shaft is abutted against the spinning worktable, and the main shaft and the spinning worktable can keep synchronous rotation; and A supporting mechanism is arranged below the spinning workbench, and the supporting mechanism is arranged on one side of the main shaft and parallel to the main shaft; Wherein, the supporting mechanism includes a roller and a driver, the roller is connected to the driving end of the driver and faces the spinning workbench, and the driver can drive the roller to support the spinning workbench.

2. The large-scale high-power CNC spinning machine according to claim 1 is characterized in that: There are three supporting mechanisms, and the three supporting mechanisms are evenly distributed along the circumference of the spinning workbench.

3. The large-scale high-power CNC spinning machine according to claim 2 is characterized in that: The rolling direction of the roller is the circumferential direction of the spinning workbench. When the roller supports the spinning workbench, the roller rolls as the spinning workbench rotates.

4. The large-scale high-power CNC spinning machine according to claim 1 is characterized in that: The driver is a cylinder.

5. The large-scale high-power CNC spinning machine according to claim 1 is characterized in that: The roller is connected to the driving end of the driver via a connecting piece, and the connecting piece is provided with a first connecting part and a second connecting part, the first connecting part is connected to the axis of the roller via a rotating shaft, and the second connecting part is fixedly connected to the driving end of the driver.

6. The large-scale high-power CNC spinning machine according to claim 5 is characterized in that: The connecting piece and the driving end of the driver are an integrated structure.

7. The large-scale high-power CNC spinning machine according to claim 1 is characterized in that: A shaft sleeve is arranged on the outer side of the main shaft, and a rolling bearing is arranged between the main shaft and the shaft sleeve.

8. The large-scale high-power CNC spinning machine according to claim 7 is characterized in that: A lower pressure cover is connected below the main shaft, and the lower pressure cover supports the large-scale high-power CNC spinning machine.

9. The large-scale high-power CNC spinning machine according to claim 1, characterized in that: The servo motor is connected to the spinning workbench through a transmission assembly.

10. The large-scale high-power CNC spinning machine according to claim 9, characterized in that: The transmission assembly includes a reducer, a transmission gear and a workbench gear. The reducer is connected between the servo motor and the transmission gear. The workbench gear is a circular gear, which is fixed to the spinning workbench and arranged along the circumference of the spinning workbench. The transmission gear and the workbench gear are engaged with each other.

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