Spinning machine with internal and external synchronous spinning function

Abstract

The spinning machine with the internal and external synchronous spinning function comprises a workbench and a spinning assembly located on the upper side of the workbench, and the spinning assembly comprises a spinning operation table, an internal spinning assembly rotating on the spinning operation table and an external spinning assembly rotating on the spinning operation table; the inner spinning assembly and the outer spinning assembly are located on the inner side and the outer side of a to-be-machined workpiece correspondingly and used for jointly conducting extrusion forming on the inner side and the outer side of the to-be-machined workpiece. The spinning device has the technical effects that internal and external synchronous spinning is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of annular workpiece production, and in particular to a spinning machine with internal and external synchronous spinning functions. Background Art

[0002] At present, the spinning process is often used in the production of annular parts. The spinning process is a processing technology with little cutting. After the casting or forging blank is subjected to the strong spinning process, the corresponding parts obtain a large degree of plastic deformation, the mechanical properties and elongation are greatly improved, the defects in the blank are eliminated, and the product weight is reduced.

[0003] At present, some manufacturers at home and abroad have produced some types of spinning machines for annular workpieces, which are mainly divided into two structural forms: horizontal and vertical. For wheel products, the horizontal structure of the spinning machine has the main disadvantages of inconvenient loading and unloading and low production efficiency. The body structure and transmission mechanism of the vertical spinning machine are relatively complex. Whether it is a two-wheel or three-wheel spinning machine, it adopts a multi-column form with a complex structure, which leads to high equipment manufacturing costs and affects large-scale promotion and application; in the spinning production process of annular workpieces in the prior art, the conventional method is to set a molding mold on one side, apply pressure molding on the other side, and flip it over again for molding after completing the molding on one side. The spinning machine needs to spin separately during the internal and external spinning molding process, which affects production efficiency.

[0004] With respect to the above-mentioned related technologies, the inventors believe that there is a technical defect of low production efficiency. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a spinning machine with internal and external synchronous spinning function.

[0006] The present application provides a spinning machine with internal and external synchronous spinning function, which adopts the following technical solution: A spinning machine with internal and external synchronous spinning function includes a workbench and a spinning component located on the upper side of the workbench, the spinning component includes a spinning operating table, an internal spinning component rotating on the spinning operating table, and an external spinning component rotating on the spinning operating table, the internal spinning component and the external spinning component are respectively located on the inner and outer sides of a workpiece to be processed, and are used to extrude and form the inner and outer sides of the workpiece to be processed together.

[0007] By adopting the above technical scheme, the inner surface and outer surface of the annular workpiece can be processed synchronously through the set spinning component, and the entire annular workpiece can be deeply processed. The inner and outer surfaces of the annular workpiece are extruded by the inner spinning component and the outer spinning component respectively, so that the spinning efficiency of the annular workpiece is higher and the production efficiency is improved.

[0008] Preferably, the internal spinning assembly includes a first supporting part hinged to the spinning operating table and a first movable part inserted in the first supporting part, a positioning groove is arranged inside the first supporting part, a positioning protrusion corresponding to the positioning groove is arranged on the first movable part, a first rotating screw is arranged in the first supporting part, a first driving motor for driving the first rotating screw to rotate is arranged at the upper end part of the first rotating screw, the first rotating screw is threadedly connected to the first movable part, and a small grinding disc is freely rotating below the first movable part.

[0009] By adopting the above-mentioned technical solution, when in use, the first driving motor can be rotated to drive the first movable part to move downward, so that the small grinding disc on the lower side of the first movable part is in contact with the inner surface of the workpiece to be processed. The small grinding disc can be raised or lowered by the forward or reverse driving of the first driving motor, so that the small grinding disc can shape the inner part of the workpiece to be processed, thereby improving the shaping efficiency.

[0010] Preferably, the external spinning assembly includes a second supporting part hinged to the spinning operating table and a second movable part inserted outside the second supporting part, the second supporting part is provided with a sliding groove on the outside, the second movable part is provided with a sliding protrusion corresponding to the positioning groove, a second rotating screw is provided outside the second supporting part, a second driving motor for driving the second rotating screw to rotate is provided at the upper end of the second rotating screw, the second rotating screw is threadedly connected to the second movable part, and a large grinding disc is freely rotating below the second movable part.

[0011] By adopting the above-mentioned technical solution, when in use, the second driving motor can be rotated to drive the second movable part to move downward, so that the large grinding disc on the lower side of the second movable part is in contact with the inner surface of the workpiece to be processed. The large grinding disc can be raised or lowered by the forward or reverse driving of the second driving motor, so that the large grinding disc can shape the inner part of the workpiece to be processed, thereby improving the shaping efficiency.

[0012] Preferably, the spinning operating table is rotatably connected to an angle adjustment bracket, both ends of the angle adjustment bracket are rotatably connected to the outer spinning component and the inner spinning component respectively, and the angle adjustment bracket is provided with a positioning component for fixing it at any position.

[0013] By adopting the above technical solution and setting an angle adjustment bracket, it is easy to adjust the relative angle of the outer spinning component and the inner spinning component. After adjusting the relative angle, the inner and outer sides of the annular workpiece can be processed simultaneously, which makes the operation simpler and more convenient.

[0014] Preferably, both the outer spinning component and the inner spinning component are provided with a synchronous positioning component, and the synchronous positioning component includes an outer magnetic attraction component fixedly mounted on the outer spinning component and an inner magnetic attraction component fixedly mounted on the inner spinning component, and the inner magnetic attraction component and the outer magnetic attraction component both include a positioning plate, a magnetic attraction groove opened on the side of the positioning plate, and a strong magnetic component fixedly connected to the positioning plate.

[0015] By adopting the above technical solution, when it is necessary to perform internal synchronous position processing, the synchronous positioning component can be turned on. At this time, the angle adjustment bracket of the internal spinning component and the external spinning component is controlled to rotate freely, so that the strong magnetic components located on the inner and outer sides of the workpiece to be processed are adsorbed on each other, and the initial parameters of the position are obtained. The position of the bracket is adjusted by fixing the angle of the positioning component. This method can effectively improve the alignment efficiency and improve production efficiency during internal and external synchronous processing.

[0016] Preferably, the inner spinning assembly and the outer spinning assembly are respectively two groups, and are arranged at two sides of the workpiece to be processed.

[0017] By adopting the above technical solution, by setting up two groups of inner spinning components and two groups of outer spinning components, the inner ring surfaces on both sides can be deep processed. After one side is processed, the other side can be processed synchronously, so that the inner ring surface or the outer ring surface can be deep processed alternately layer by layer, which can effectively improve production efficiency.

[0018] Preferably, the angle adjustment frames are arranged in two groups, and the two groups of inner spinning components and outer spinning components are rotatably connected to the corresponding angle adjustment frames, and a positioning adjustment plate is arranged on the upper side of the two angle adjustment frames, and the positioning adjustment plate abuts against the inner end portions of the two angle adjustment frames to adjust the two angle adjustment frames to be in the same state.

[0019] By adopting the above technical solution, by setting a positioning adjustment plate, it is possible to adjust the relative horizontal position of the two angle adjustment frames, or adjust the two to form a relative angle, so as to facilitate synchronous processing or alternating layer processing, which can effectively improve production efficiency.

[0020] Preferably, a base is provided at the lower side of the workbench, a main shaft is rotatably connected above the base, the workbench is fixedly connected above the main shaft, and a main motor for driving the main shaft to rotate relative to the base is provided on the base.

[0021] Preferably, a plurality of positioning brackets are arranged on the upper peripheral surface of the workbench, and a positioning block is slidably connected to the positioning bracket and can contact the workpiece to be processed to fix the workpiece to be processed on the workbench.

[0022] By adopting the above technical solution, by setting up multiple positioning components and setting a slidable positioning block on the positioning bracket, the positioning block can be abutted against the outer ring surface of the base of the workpiece to be processed, which is convenient for stable positioning of the workpiece to be processed and improves the processing accuracy.

[0023] Preferably, an external spinning hydraulic cylinder for driving the external spinning component to rotate is arranged on the side thereof, the base of the external spinning hydraulic cylinder is rotatably connected to the spinning operating table, and the piston rod of the external spinning hydraulic cylinder is rotatably connected to the external spinning component.

[0024] By adopting the above technical solution and providing an external spinning hydraulic cylinder, the relative angle of the external spinning assembly can be easily adjusted, so that the external spinning assembly can be used to process the workpiece more conveniently.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: The provided spinning assembly can synchronously process the inner and outer surfaces of the annular workpiece, and perform deep processing on the entire annular workpiece. The inner and outer surfaces of the annular workpiece are respectively extruded and formed by the inner spinning assembly and the outer spinning assembly, so that the spinning efficiency of the annular workpiece is higher and the production efficiency is improved; the first and second driving motors can be rotated to drive the first and second movable parts to move downward, so that the large grinding disc and the small grinding disc on the lower side of the first and second movable parts are in contact with the inner surface of the workpiece to be processed, and the large grinding disc and the small grinding disc can be raised or lowered by the forward or reverse driving of the first and second driving motors, so that the large grinding disc and the small grinding disc can shape the inner part of the workpiece to be processed, thereby improving the shaping efficiency.

[0026] By setting up an angle adjustment bracket, it is convenient to adjust the relative angle of the outer spinning component and the inner spinning component. After adjusting the relative angle, the inner and outer sides of the annular workpiece can be processed synchronously; when the internal synchronous position needs to be processed, the synchronous positioning component can be turned on. At this time, the angle adjustment bracket that controls the relative rotation of the inner and outer spinning components can rotate freely, so that the strong magnetic components located on the inner and outer sides of the workpiece to be processed are attracted to each other, and the initial parameters of the position are obtained, and then the position of the angle adjustment bracket is fixed by the positioning component. This method can effectively improve the alignment efficiency and improve production efficiency during internal and external synchronous processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0029] Figure 3It is a schematic structural diagram highlighting the inner spinning component and the outer spinning component in the embodiment.

[0030] Figure 4 It is a schematic diagram highlighting the internal matching relationship between the inner spinning component and the outer spinning component in the embodiment.

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure highlighting the inner spinning component and the outer spinning component in the embodiment.

[0032] Description of reference numerals: 1, workbench; 12, base; 13, spindle; 14, positioning bracket; 141, positioning block; 2, spinning assembly; 21, spinning operation table; 22, inner spinning assembly; 221, first supporting portion; 222, first movable portion; 223, positioning groove; 224, positioning protrusion; 225, first rotating screw; 226, first driving motor; 227, small grinding disc; 228, inner spinning hydraulic cylinder; 23, outer spinning assembly; 231, second supporting portion; 232 , second movable part; 233, sliding groove; 234, sliding protrusion; 235, second rotating screw; 236, second driving motor; 237, large grinding disc; 238, external spinning hydraulic cylinder; 3, rotating shaft; 31, angle adjustment bracket; 32, positioning hydraulic cylinder; 33, positioning adjustment plate; 331, lifting hydraulic cylinder; 4, synchronous positioning component; 41, internal magnetic suction component; 42, external magnetic suction component; 43, positioning plate; 44, magnetic suction groove; 45, strong magnetic component; 5, workpiece to be processed. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a spinning machine with internal and external synchronous spinning function. Figure 1 and Figure 2 , including a workbench 1 and two groups of spinning components 2 located on the upper side of the workbench 1, the spinning components 2 specifically include a spinning operating table 21, an inner spinning component 22 and an outer spinning component 23, which are convenient for processing both sides of the workpiece 5 to be processed; a base 12 is provided on the lower side of the workbench 1, a spindle 13 is rotatably connected above the base 12, the workbench 1 is fixedly connected above the spindle 13, and a main motor that drives the spindle 13 to rotate relative to the base 12 is provided on the base 12; a plurality of positioning brackets 14 are provided on the upper circumferential surface of the workbench 1, and a positioning block 141 that can resist the workpiece 5 to be processed to fix the workpiece 5 to be processed on the workbench 1 is slidably connected to the positioning bracket 14.

[0035] During processing, the workpiece 5 to be processed can be placed on the workbench 1 and fixed by sliding multiple positioning blocks 141, and then the two groups of spinning components 2 are respectively arranged on both sides of the workpiece 5 to be processed, so that the outer spinning component 23 in each group of spinning components 2 is in contact with the outer annular surface of the workpiece 5 to be processed, and the inner spinning component 22 is in contact with the inner annular surface of the workpiece 5 to be processed, thereby extruding and shaping the workpiece 5 to be processed.

[0036] The positions corresponding to the two spinning assemblies 2 on the spinning operation table 21 are respectively fixedly connected with rotating shafts 3, and angle adjustment brackets 31 are rotatably connected to the rotating shafts 3. The inner spinning assembly 22 and the outer spinning assembly 23 are respectively rotatably connected to the two ends of the angle adjustment brackets 31. A positioning assembly is also provided at the position corresponding to each angle adjustment bracket 31 on the spinning operation table 21. The positioning assembly includes a positioning hydraulic cylinder 32. The base of the positioning hydraulic cylinder 32 is fixedly connected to the spinning operation table 21. The piston rod of the positioning hydraulic cylinder 32 can be extended and abutted on the corresponding angle adjustment bracket 31, so that the angle adjustment The section bracket 31 stops rotating, and a positioning adjustment plate 33 is arranged on the spinning operating table 21. Two lifting hydraulic cylinders 331 are arranged on the upper end of the positioning adjustment plate 33. The base of the lifting hydraulic cylinder 331 is rotatably connected to the spinning operating table 21, and the piston rod of the lifting hydraulic cylinder 331 is rotatably connected to the positioning adjustment plate 33. The two ends of the positioning adjustment plate 33 are located on the upper side of the two angle adjustment brackets 31 and the initial positions of the two angle adjustment brackets 31 can be controlled by the abutting placement; the positioning adjustment plate 33 can be driven to move up and down by the two lifting hydraulic cylinders 331 and form a certain initial angle.

[0037] During processing, the lifting hydraulic cylinder 331 can be used to control the up and down movement of the positioning adjustment plate 33 and determine whether a certain angle is formed. If it is determined to be adjusted, the lifting hydraulic cylinder 331 is used to drive the positioning adjustment plate 33 to move downward and contact the upper side of the angle adjustment bracket 31, so that the two angle adjustment brackets 31 obtain the initial position angle, thereby realizing the angle adjustment of the angle adjustment bracket 31, and then the positioning hydraulic cylinder 32 is used to contact the side wall of the angle adjustment bracket 31, so that the angle adjustment bracket 31 can be stabilized in this position, which is convenient for the next step of processing.

[0038] Reference Figure 3 and Figure 4The inner spinning assembly 22 includes a first support portion 221 hinged to the spinning operation table 21 and a first movable portion 222 inserted in the first support portion 221. A positioning groove 223 is provided inside the first support portion 221. A positioning protrusion 224 corresponding to the positioning groove 223 is provided on the first movable portion 222. A first rotating screw 225 is provided in the first support portion 221. A first driving motor 226 driving the first rotating screw 225 to rotate is provided at the upper end thereof. The first rotating screw 225 is threadedly connected to the first movable portion 222. A small grinding disc 227 is freely rotatable below the first movable portion 222. The external spinning assembly 23 includes a second supporting portion 231 hinged on the spinning operating table 21 and a second movable portion 232 inserted outside the second supporting portion 231, a sliding groove 233 is arranged outside the second supporting portion 231, a sliding protrusion 234 corresponding to the positioning groove 223 is arranged on the second movable portion 232, a second rotating screw 235 is arranged outside the second supporting portion 231, a second driving motor 236 for driving the second rotating screw 235 to rotate is arranged at the upper end thereof, the second rotating screw 235 is threadedly connected to the second movable portion 232, and a large grinding disc 237 is freely rotating below the second movable portion 232.

[0039] An external spinning hydraulic cylinder 238 is arranged on the side of the external spinning component 23 to drive its rotation. The base of the external spinning hydraulic cylinder 238 is rotatably connected to the spinning operating table 21, and the piston rod of the external spinning hydraulic cylinder 238 is rotatably connected to the external spinning component 23; an internal spinning hydraulic cylinder 228 is arranged on the side of the internal spinning component 22 to drive its rotation. The base of the internal spinning hydraulic cylinder 228 is rotatably connected to the spinning operating table 21, and the piston rod of the internal spinning hydraulic cylinder 228 is rotatably connected to the internal spinning component 22.

[0040] Reference Figure 5 A synchronous positioning component 4 is provided on both the outer spinning component 23 and the inner spinning component 22. The synchronous positioning component 4 includes an outer magnetic component 42 fixedly mounted on the outer spinning component 23 and an inner magnetic component 41 fixedly mounted on the inner spinning component 22. The inner magnetic component 41 and the outer magnetic component 42 both include a positioning plate 43, a magnetic groove 44 opened on the side of the positioning plate 43, and a strong magnetic component 45 fixedly connected to the positioning plate 43.

[0041] When it is necessary to process the inner and outer sides of the workpiece 5 to be processed simultaneously at the same position, the adjustment method of the positioning adjustment plate 33 can be avoided. At this time, the positioning hydraulic cylinder 32 is controlled to disengage from the angle adjustment bracket 31, and the inner magnetic suction component 41 located on the inner side of the workpiece 5 to be processed and the outer magnetic suction component 42 located on the outer side of the workpiece 5 to be processed can be adsorbed on each other. Due to the provision of the magnetic suction groove 44, the positions of the inner magnetic suction component 41 and the outer magnetic suction component 42 can be relatively determined. At this time, the angle adjustment bracket 31 follows a certain angle change, and then the positioning of the angle adjustment bracket 31 is performed by the positioning hydraulic cylinder 32, which can be easily adjusted.

[0042] The working principle of a spinning machine with internal and external synchronous spinning function in the present application is: when processing, the workpiece 5 to be processed can be placed on the workbench 1, and it can be fixed by sliding a plurality of positioning blocks 141, and then the two groups of spinning components 2 are respectively arranged on both sides of the workpiece 5 to be processed, so that the outer spinning component 23 in each group of spinning components 2 is in contact with the outer annular surface of the workpiece 5 to be processed, and the inner spinning component 22 is in contact with the inner annular surface of the workpiece 5 to be processed, thereby extruding and shaping the workpiece 5 to be processed; the positioning adjustment plate 33 is controlled to move up and down by the lifting hydraulic cylinder 331 to determine whether a certain angle is formed. If it is determined that the adjustment is made, the positioning adjustment plate 33 is driven by the lifting hydraulic cylinder 331 to move downward and contact the upper side of the angle adjustment bracket 31, so that the two angle adjustment brackets 31 obtain the initial position angle, thereby achieving The angle of the angle adjustment bracket 31 is now adjusted, and the positioning hydraulic cylinder 32 is then pressed against the side wall of the angle adjustment bracket 31, so that the angle adjustment bracket 31 can be stabilized in this position, which is convenient for the next processing work; when it is necessary to synchronously process the inner and outer sides of the workpiece 5 to be processed at the same position, the adjustment method of the positioning adjustment plate 33 can be avoided. At this time, the positioning hydraulic cylinder 32 is controlled to disengage from the angle adjustment bracket 31, and the inner magnetic suction component 41 located on the inner side of the workpiece 5 to be processed and the outer magnetic suction component 42 located on the outer side of the workpiece 5 to be processed can be adsorbed on each other. Due to the provision of the magnetic suction groove 44, the positions of the inner magnetic suction component 41 and the outer magnetic suction component 42 can be relatively determined. At this time, the angle adjustment bracket 31 follows a certain angle change, and then the positioning hydraulic cylinder 32 is used to position the angle adjustment bracket 31, which can be very conveniently adjusted.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spinning machine with internal and external synchronous spinning function, comprising a workbench (1) and a spinning assembly (2) located on the upper side of the workbench (1), characterized in that: The spinning assembly (2) comprises a spinning operation table (21), an inner spinning assembly (22) rotating on the spinning operation table (21), and an outer spinning assembly (23) rotating on the spinning operation table (21); the inner spinning assembly (22) and the outer spinning assembly (23) are respectively located on the inner side and the outer side of a workpiece (5) to be processed, and are used to perform extrusion molding on both the inner and outer sides of the workpiece (5) to be processed.

2. A spinning machine with internal and external synchronous spinning function according to claim 1, characterized in that: The inner spinning assembly (22) comprises a first supporting portion (221) hinged to the spinning operating table (21) and a first movable portion (222) inserted into the first supporting portion (221); a positioning groove (223) is arranged inside the first supporting portion (221); a positioning protrusion (224) corresponding to the positioning groove (223) is arranged on the first movable portion (222); a first rotating screw (225) is arranged inside the first supporting portion (221); a first driving motor (226) for driving the first rotating screw (225) to rotate is arranged at the upper end portion of the first rotating screw (225); the first rotating screw (225) is threadedly connected to the first movable portion (222); and a small grinding disc (227) is freely rotatable below the first movable portion (222).

3. The spinning machine with internal and external synchronous spinning function according to claim 1, characterized in that: The external spinning assembly (23) comprises a second supporting portion (231) hinged to the spinning operating table (21) and a second movable portion (232) inserted outside the second supporting portion (231); a sliding groove (233) is arranged outside the second supporting portion (231); a sliding protrusion (234) corresponding to the positioning groove (223) is arranged on the second movable portion (232); a second rotating screw (235) is arranged outside the second supporting portion (231); a second driving motor (236) for driving the second rotating screw (235) to rotate is arranged at the upper end portion of the second rotating screw (235); the second rotating screw (235) is threadedly connected to the second movable portion (232); and a large grinding disc (237) is freely rotatable below the second movable portion (232).

4. The spinning machine with internal and external synchronous spinning function according to claim 1, characterized in that: The spinning operation table (21) is rotatably connected to an angle adjustment bracket (31), and two ends of the angle adjustment bracket (31) are rotatably connected to the outer spinning component (23) and the inner spinning component (22) respectively. The angle adjustment bracket (31) is provided with a positioning component for fixing it at any position.

5. The spinning machine with internal and external synchronous spinning function according to claim 4, characterized in that: The outer spinning component (23) and the inner spinning component (22) are both provided with a synchronous positioning component (4), and the synchronous positioning component (4) includes an outer magnetic attraction component (42) fixedly arranged on the outer spinning component (23) and an inner magnetic attraction component (41) fixedly arranged on the inner spinning component (22), and the inner magnetic attraction component (41) and the outer magnetic attraction component (42) both include a positioning plate (43), a magnetic attraction groove (44) provided on the side of the positioning plate (43), and a strong magnetic component (45) fixedly connected to the positioning plate (43).

6. The spinning machine with internal and external synchronous spinning function according to claim 4, characterized in that: The inner spinning assembly (22) and the outer spinning assembly (23) are respectively two groups, and are arranged at two sides of the workpiece (5) to be processed.

7. The spinning machine with internal and external synchronous spinning function according to claim 6, characterized in that: The angle adjustment brackets (31) are arranged in two groups, and the two groups of the inner rotation pressing components (22) and the outer rotation pressing components (23) are both rotationally connected to the corresponding angle adjustment brackets (31). Positioning adjustment plates (33) are arranged on the upper sides of the two angle adjustment brackets (31), and the positioning adjustment plates (33) abut against the inner ends of the two angle adjustment brackets (31) to adjust the two angle adjustment brackets (31) to be in the same state.

8. The spinning machine with internal and external synchronous spinning function according to claim 1, characterized in that: A base (12) is provided at the lower side of the workbench (1), a main shaft (13) is rotatably connected to the top of the base (12), the workbench (1) is fixedly connected to the top of the main shaft (13), and a main motor is provided on the base (12) for driving the main shaft (13) to rotate relative to the base (12).

9. The spinning machine with internal and external synchronous spinning function according to claim 1, characterized in that: A plurality of positioning brackets (14) are arranged on the upper peripheral surface of the workbench (1), and a positioning block (141) is slidably connected to the positioning bracket (14) and can abut against the workpiece (5) to be processed so as to fix the workpiece (5) to be processed on the workbench (1).

10. The spinning machine with internal and external synchronous spinning function according to claim 1, characterized in that: The side of the external spinning component (23) is provided with an external spinning hydraulic cylinder (238) for driving the external spinning component (23) to rotate. The base of the external spinning hydraulic cylinder (238) is rotatably connected to the spinning operation table (21), and the piston rod of the external spinning hydraulic cylinder (238) is rotatably connected to the external spinning component (23).

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