Dieless dual contra-rotating numerical control spinning device

Abstract

The application relates to the field of spinning technology and discloses a dieless double-rotation numerical control spinning device, which comprises a spindle mechanism for fixing and rotating a product, a first spinning mechanism arranged on one side of the spindle mechanism and used for spinning the product, and a second spinning mechanism arranged on the other side of the spindle mechanism and used for spinning the product at another position; the first spinning mechanism and the second spinning mechanism are both provided with inner spinning components and outer spinning components, the inner spinning components abut against the inner wall of the product, and the outer spinning components abut against the outer wall of the product. The dieless double-rotation numerical control spinning device is designed by combining the spindle mechanism and the two spinning mechanisms, the spindle mechanism is used for fixing and rotating the product, the inner and outer walls of the product are spun by the outer spinning components and the inner spinning components, a special die is not needed in the whole spinning process, the production cost of the product is effectively reduced, the product design can be quickly changed, the flexibility is high, and the product development progress and market response speed are improved.

Description

Technical Field

[0001] This application belongs to the field of spinning technology, specifically relating to a moldless double-counter-rotation CNC spinning device. Background Technology

[0002] Spinning technology, as a highly efficient metal plastic forming process, has been widely used in many fields such as aerospace, automobile manufacturing, and medical devices, providing important technical support for the mass production of various complex curved surface parts. However, traditional spinning processes generally rely on dedicated molds that correspond one-to-one with the product shape. Each new product requires the design and manufacture of a completely new mold, which not only results in high mold design and manufacturing costs, significantly increasing product production costs, but also has a long mold production cycle, severely restricting product development progress and market response speed. Furthermore, when product design needs to be adjusted or optimized, the original dedicated molds are often incompatible, and new molds must be manufactured, which greatly reduces the flexibility and adaptability of production and makes it difficult to meet the production needs of modern manufacturing, which require multiple varieties, small batches, and rapid iteration. Utility Model Content

[0003] To address the shortcomings of the prior art, this application provides a moldless double-rotating CNC spinning device. Through the combined design of the spindle mechanism and two spinning mechanisms, the entire spinning process can be completed without the use of a special mold, which has the advantages of low cost, high flexibility, and improved product development progress and market response speed.

[0004] The technical effects to be achieved in this application are realized through the following aspects: This application provides a moldless double-rotating CNC spinning device, comprising: Spindle mechanism, used to fix and rotate the product; A first spinning mechanism, located on one side of the main spindle mechanism, is used for spinning the product; and The second spinning mechanism is located on the other side of the main spindle mechanism and is used for spinning at another position of the product; Both the first spinning mechanism and the second spinning mechanism are provided with an inner spinning component and an outer spinning component. The inner spinning component abuts against the inner wall of the product, and the outer spinning component abuts against the outer wall of the product.

[0005] In some implementations, the first spinning mechanism includes a first outer spinning component, a first inner spinning component, and a first lifting component. The drive end of the first lifting component is drivenly connected to the first outer spinning component and the first inner spinning component. The first lifting component is used to control the first outer spinning component and the first inner spinning component to move up and down synchronously.

[0006] In some implementations, the second spinning mechanism includes a second outer spinning component, a second inner spinning component, and a second lifting component. The drive end of the second lifting component is drivenly connected to both the second outer spinning component and the second inner spinning component. The second lifting component is used to control the synchronous lifting of the second outer spinning component and the second inner spinning component.

[0007] In some implementations, the first spinning mechanism includes a third outer spinning component, a third inner spinning component, a third lifting component, and a fourth lifting component. The third lifting component is drivenly connected to the third outer spinning component, and the third lifting component is used to control the lifting of the third outer spinning component. The fourth lifting component is driven to connect with the third inner spinning component, and the fourth lifting component is used to control the lifting of the third inner spinning component.

[0008] In some implementations, the second spinning mechanism includes a fourth outer spinning component, a fourth inner spinning component, a fifth lifting component, and a sixth lifting component. The fifth lifting component is drivenly connected to the fourth outer spinning component and is used to control the lifting of the fourth outer spinning component. The sixth lifting component is driven to connect with the fourth inner spinning component, and the sixth lifting component is used to control the lifting and lowering of the fourth inner spinning component.

[0009] In some implementations, the external spinning pressing component includes an external spinning pressing tool and a first driving member, the first driving member being drivenly connected to the external spinning pressing tool, and the first driving member being used to control the external spinning pressing tool to move in the D direction or the A direction.

[0010] In some implementations, the internal spinning component includes an internal spinning cutter and a second driving member, the second driving member being drivenly connected to the internal spinning cutter and used to control the internal spinning cutter to move in the D direction or the A direction.

[0011] In some implementations, the internal spinning component includes an internal spinning tool, a tool changing cylinder, and a second driving component. The tool changing cylinder is drivenly connected to the internal spinning tool and is used to control the internal spinning tool to move in the E or R direction. The second driving member is driven to connect with the internal spinning pressing member, and the second driving member is used to control the internal spinning pressing member to move in the D direction or the A direction.

[0012] In some implementations, the spindle mechanism includes a clamp, a rotating component, and a driving component. The driving component is drivenly connected to the clamp and is used to control the clamping degree of the product. The rotating component is drivenly connected to the clamp and is used to control the clamp to rotate the product.

[0013] In some implementations, the clamp includes a clamping block and an inner inclined block, the inner inclined block being movably connected to the clamping block, the clamping block having a first inclined surface, the inner inclined block having a second inclined surface, and the first inclined surface and the second inclined surface abutting each other; The driving component is connected to the inner inclined block and is used to control the lifting and lowering action of the inner inclined block.

[0014] In summary, this application has at least the following advantages: The moldless double-rotating CNC spinning device provided in this application combines a spindle mechanism and two spinning mechanisms. The spindle mechanism fixes and rotates the product, while the outer and inner spinning components simultaneously spin the inner and outer walls of the product. This avoids the need for secondary disassembly and assembly of the cutting wheel, effectively reducing processing steps and increasing product processing speed. Furthermore, the entire spinning process does not require the use of special molds, effectively reducing product production costs. It also allows for rapid changes to product designs, offering high flexibility and improving product development progress and market response speed, thus meeting the production needs of modern manufacturing industries for multi-variety, small-batch, and rapidly iterating production. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of this application.

[0016] Figure 2 This is a cross-sectional structural diagram of Embodiment 2 of this application.

[0017] Figure 3 This is a cross-sectional structural diagram of Embodiment 3 of this application.

[0018] Figure 4 for Figure 3 Enlarged structural diagram of part B.

[0019] Figure 5 This is a top view of the tool changing cylinder shown in Embodiment 3 of this application.

[0020] Figure 6 for Figure 3 An enlarged structural diagram of section C.

[0021] Marked in the image: 1. Spindle mechanism; 11. Clamp; 111. Clamping block; 112. Inner inclined block; 113. First inclined plane; 114. Second inclined plane; 12. Rotating component; 13. Driving component. 2. First spinning mechanism; 21. First outer spinning component; 22. First inner spinning component; 23. First lifting component; 24. Third outer spinning component; 25. Third inner spinning component; 26. Third lifting component; 27. Fourth lifting component. 3. Second spinning mechanism; 31. Second outer spinning component; 32. Second inner spinning component; 33. Second lifting component; 34. Fourth outer spinning component; 35. Fourth inner spinning component; 36. Fifth lifting component; 37. Sixth lifting component. 41. External rotating pressing component; 42. First driving component; 43. Internal rotating pressing component; 44. Second driving component; 45. Tool changing cylinder. 5. Products. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0024] Example 1: Please see the appendix Figure 1 The moldless double-rotating CNC spinning device of this application includes a spindle mechanism 1, a first spinning mechanism 2, and a second spinning mechanism 3.

[0025] The spindle mechanism 1 is used to fix and rotate the product 5. The first spinning mechanism 2 is located on one side of the spindle mechanism 1 and is used for spinning the product 5; the second spinning mechanism 3 is located on the other side of the spindle mechanism 1 and is used for spinning the product 5 at another position; both the first spinning mechanism 2 and the second spinning mechanism 3 are provided with an inner spinning component and an outer spinning component. The inner spinning component abuts against the inner wall of the product 5, and the outer spinning component abuts against the outer wall of the product 5.

[0026] In this embodiment, the moldless double-rotating CNC spinning device fixes product 5 via a spindle mechanism 1. The inner and outer spinning components of the first spinning mechanism 2 and the second spinning mechanism 3 are placed on the corresponding inner and outer walls of product 5, ensuring the inner spinning component abuts against the inner wall of product 5 and the outer spinning component abuts against the outer wall of product 5. Then, the spindle mechanism 1 drives product 5 to rotate, thereby performing the spinning operation on product 5.

[0027] The above technical solution eliminates the need for specialized molds throughout the spinning process. This reduces processing and equipment investment, thereby lowering the production cost of product 5. Furthermore, if a new product 5 needs to be produced, there is no need to spend time and resources designing and manufacturing entirely new molds. This allows for rapid design changes to product 5, improving R&D progress and market responsiveness, and offering high flexibility to meet the production demands of modern manufacturing—characterized by diverse product types, small batches, and rapid iteration. Additionally, by simultaneously spinning the inner and outer walls of the product using external and internal spinning components, secondary disassembly and assembly of the cutting wheel is avoided, effectively reducing processing steps and significantly increasing processing speed.

[0028] In some embodiments, the first spinning mechanism 2 includes a first outer spinning component 21, a first inner spinning component 22 and a first lifting component 23. The driving end of the first lifting component 23 is drivenly connected to the first outer spinning component 21 and the first inner spinning component 22. The first lifting component 23 is used to control the first outer spinning component 21 and the first inner spinning component 22 to move up and down synchronously.

[0029] Specifically, the first lifting component 23 can use a combination of a motor and a lead screw to achieve the lifting action of the first outer spinning component 21 and the first inner spinning component 22, that is, to move in the W or S direction.

[0030] By synchronously controlling the lifting and lowering of the first outer spinning component 21 and the first inner spinning component 22 through the first lifting component 23, the positions of the first outer spinning component 21 and the first inner spinning component 22 in contact with the product 5 can be flexibly adjusted according to the design of the product 5 during the spinning process, thereby efficiently completing the spinning design of the product 5. The lifting and lowering trajectory of the first outer spinning component 21 and the first inner spinning component 22 driven by the first lifting component 23 can be realized through an existing CNC system, ensuring the accuracy of the spinning design and guaranteeing the forming quality of the product 5.

[0031] In some embodiments, the second spinning mechanism 3 includes a second outer spinning component 31, a second inner spinning component 32, and a second lifting component 33. The driving end of the second lifting component 33 is drivenly connected to the second outer spinning component 31 and the second inner spinning component 32. The second lifting component 33 is used to control the second outer spinning component 31 and the second inner spinning component 32 to move up and down synchronously.

[0032] Specifically, the second lifting component 33 can use a combination of a motor and a lead screw to achieve the lifting action of the second outer spinning component 31 and the second inner spinning component 32, that is, to move in the W or S direction.

[0033] By synchronously controlling the lifting and lowering of the second outer spinning component 31 and the second inner spinning component 32 through the aforementioned second lifting component 33, the positions of the second outer spinning component 31 and the second inner spinning component 32 in contact with the product 5 can be flexibly adjusted according to the design of the product 5 during the spinning process, thereby efficiently completing the spinning design of the product 5. The lifting and lowering trajectory of the second outer spinning component 31 and the second inner spinning component 32 driven by the second lifting component 33 can be realized through an existing CNC system, ensuring the accuracy of the spinning design and guaranteeing the forming quality of the product 5.

[0034] In addition, by combining the first outer spinning component 21, the first inner spinning component 22, the second outer spinning component 31, and the second inner spinning component 32, spinning operations can be performed simultaneously on both sides of the product 5, thereby accelerating the forming of the product 5 and effectively improving the spinning efficiency of the product 5.

[0035] Example 2: The difference between this embodiment and Embodiment 1 is that, please refer to... Figure 2 The first spinning mechanism 2 in this embodiment includes a third outer spinning component 24, a third inner spinning component 25, a third lifting component 26, and a fourth lifting component 27. The third lifting component 26 is driven to connect with the third outer spinning component 24 and is used to control the lifting and lowering of the third outer spinning component 24. The fourth lifting component 27 is driven to connect with the third inner spinning component 25 and is used to control the lifting and lowering of the third inner spinning component 25.

[0036] Specifically, the third lifting component 26 and the fourth lifting component 27 both use a combination of existing motors and lead screws to achieve independent lifting control of the third outer spinning component 24 and the third inner spinning component 25, that is, movement in the W or S direction.

[0037] In this embodiment, according to the design of product 5, the third lifting component 26 controls the movement of the third outer spinning component 24 in the W or S direction, so that the third outer spinning component 24 moves to the corresponding outer wall of product 5, and the fourth lifting component 27 controls the movement of the third inner spinning component 25 in the W or S direction, so that the third inner spinning component 25 moves to the corresponding inner wall of product 5. After the positions of the third outer spinning component 24 and the third inner spinning component 25 are completed, the main shaft mechanism 1 drives product 5 to rotate, thereby realizing the spinning action.

[0038] With the above settings, the movement of the third outer spinning component 24 is independently controlled by the third lifting component 26, and the movement of the third inner spinning component 25 is independently controlled by the fourth lifting component 27. According to the design of product 5, the trajectory programming of the third outer spinning component 24 and the third inner spinning component 25 can be realized independently through the existing CNC system to meet the processing of different products 5 with different processes. It is highly flexible and can not only adapt to the spinning of various types of products 5, but also greatly improve production efficiency.

[0039] In some embodiments, the second spinning mechanism 3 includes a fourth outer spinning component 34, a fourth inner spinning component 35, a fifth lifting component 36, and a sixth lifting component 37. The fifth lifting component 36 is drivenly connected to the fourth outer spinning component 34 and is used to control the lifting and lowering of the fourth outer spinning component 34. The sixth lifting component 37 is drivenly connected to the fourth inner spinning component 35 and is used to control the lifting and lowering of the fourth inner spinning component 35.

[0040] Specifically, the fifth lifting component 36 and the sixth lifting component 37 both use a combination of existing motors and lead screws to achieve independent lifting control of the fourth outer spinning component 34 and the fourth inner spinning component 35, that is, movement in the W or S direction.

[0041] With the above settings, the fifth lifting component 36 independently controls the fourth outer spinning component 34 to move to the corresponding position on the outer wall of the product 5, and the sixth lifting component 37 independently controls the fourth inner spinning component 35 to move to the corresponding position on the inner wall of the product 5. According to the design of the product 5, the existing CNC system can independently program the trajectories of the fourth outer spinning component 34 and the fourth inner spinning component 35, which can meet the processing of different products 5 with different processes, effectively improve the flexibility of movement and spinning process, and adapt to the spinning design of various types of products 5. Moreover, by adopting the independent movement of the fourth inner spinning component 35 and the fourth outer spinning component 34, the accuracy of the spinning position of the fourth inner spinning component 35 and the fourth outer spinning component 34 on the inner and outer walls of the product 5 can be improved accordingly, effectively improving the accuracy of spinning and ensuring the quality of the spun product 5.

[0042] Example 3: This embodiment is based on the above embodiment; please refer to [link / reference]. Figure 3 The external spinning pressing component in this embodiment includes an external spinning pressing cutter 41 and a first driving member 42. The first driving member 42 is drivenly connected to the external spinning pressing cutter 41 and is used to control the external spinning pressing cutter 41 to move in the D-direction or the A-direction. The external spinning pressing cutter 41 consists of a cutter holder and a cutter wheel. The first driving member 42 can adopt a combination of a conventional motor and a lead screw, driving the cutter holder to move in the D-direction or the A-direction via the lead screw, thus achieving the contact point between the external spinning pressing cutter 41 and the inner wall of the product 5.

[0043] In this embodiment, the external spinning pressing tool 41 moves in the D or A direction through the first driving member 42, thereby achieving the contact pressure of the external spinning pressing tool 41 on the outer wall of the product 5. Moreover, the position of the external spinning pressing tool 41 can be flexibly changed according to the design of the product 5 to adapt to different designs of the product 5, ensuring the diversity of spinning design of the product 5, improving the accuracy of the spinning position of the external spinning pressing tool 41, and thus ensuring the forming quality of the product 5.

[0044] In some embodiments, the internal spinning component includes an internal spinning cutter 43 and a second driving member 44. The second driving member 44 is drivenly connected to the internal spinning cutter 43 and is used to control the movement of the internal spinning cutter 43 in the D-direction or the A-direction. The internal spinning cutter 43 consists of a cutter holder and a cutter wheel. The second driving member 44 can employ a combination of a conventional motor and a lead screw, using the lead screw to drive the cutter holder to move in the D-direction or the A-direction, thereby achieving the appropriate contact between the internal spinning cutter 43 and the inner wall of the product 5.

[0045] With the above settings, the inner spinning component moves in the D or A direction via the second drive component 44, thereby achieving the degree of contact between the inner spinning cutter 43 and the inner wall of the product 5. The position of the inner spinning cutter 43 can be flexibly changed according to the design of the product 5 to adapt to different designs of the product 5 and meet the diversity of spinning designs of the product 5. At the same time, it can also improve the accuracy of the spinning position of the inner spinning cutter 43, thereby ensuring the forming quality of the product 5.

[0046] In some embodiments, see Figure 4-5 The internal spinning component includes an internal spinning tool 43, a tool changing cylinder 45, and a second drive unit 44. The tool changing cylinder 45 is driven by the internal spinning tool 43 and controls its movement in the E or R direction. The second drive unit 44 is also driven by the internal spinning tool 43 and controls its movement in the D or A direction. The tool holder of the internal spinning tool 43 can be replaced according to different spinning arc angles. The tool changing cylinder 45 and the tool holder of the internal spinning tool 43 can be connected using a fisheye connector or an I-type connector.

[0047] With this setup, when switching between different tool holders is required, the tool changing cylinder 45 pushes out the tool holder of the internal spinning tool 43, and the original tool holder of the internal spinning tool 43 is replaced by unscrewing the screws. The tool holder of the other internal spinning tool 43 is then reconnected to the tool changing cylinder 45, and the tool changing cylinder 45 pulls the replaced tool holder of the internal spinning tool 43 back to its original working position, ensuring normal operation for the next spinning cycle. The tool holder of the internal spinning tool 43 can be flexibly replaced according to the design of Product 5 to meet the diversity of spinning requirements, and this setup also improves the convenience of tool changing.

[0048] In some embodiments, see Figure 6The spindle mechanism 1 includes a clamp 11, a rotating component 12, and a driving component 13. The driving component 13 is drivenly connected to the clamp 11 and is used to control the clamping degree of the clamp 11 on the product 5. The rotating component 12 is drivenly connected to the clamp 11 and is used to control the clamp 11 to drive the product 5 to rotate.

[0049] The clamp 11 includes a clamping block 111 and an inner inclined block 112. The inner inclined block 112 is movably connected to the clamping block 111. The clamping block 111 is provided with a first inclined surface 113, and the inner inclined block 112 is provided with a second inclined surface 114. The first inclined surface 113 and the second inclined surface 114 abut against each other. The driving component 13 is drivenly connected to the inner inclined block 112 and is used to control the lifting and lowering action of the inner inclined block 112.

[0050] The drive component 13 consists of a motor and a pull rod. The pull rod is movably connected to the inner inclined block 112. The motor drives the inner inclined block 112 to move in either a W or S direction via the pull rod. When the motor drives the inner inclined block 112 to move in the W direction via the pull rod, the clamping block 111 moves away from the product 5 due to the structural design of the first inclined surface 113 and the second inclined surface 114, thus releasing the product 5. Similarly, when the motor drives the inner inclined block 112 to move in the S direction via the pull rod, the clamping block 111 moves closer to the product 5, thus clamping the product 5.

[0051] The rotating component 12 can be driven by a rotating power source and a main spindle core to rotate the fixture 11. The main spindle core can be connected to the clamping block 111. Since the pull rod is movably connected to the inner inclined block 112, the rotation of the fixture 11 and the clamping of the product 5 are independent, ensuring the independence of the function and realizing the smoothness of the spinning operation.

[0052] The spinning device in this application adopts a combination design of the first spinning mechanism 2, the second spinning mechanism 3 and the spindle mechanism 1, and combines the existing CNC system to program the above mechanisms according to the design of product 5, which greatly reduces manual intervention, ensures the accuracy of spinning product 5, and effectively improves the degree of automation and significantly improves production efficiency.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0055] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0056] In this application, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" a first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] Although the description of this application has been made in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A moldless double-rotating CNC spinning device, characterized in that, include: Main spindle mechanism (1) is used to fix and rotate the product (5); A first spinning mechanism (2) is located on one side of the main shaft mechanism (1) and is used for spinning the product (5); and The second spinning mechanism (3) is located on the other side of the main shaft mechanism (1) and is used for spinning the product (5) at another position. Both the first spinning mechanism (2) and the second spinning mechanism (3) are provided with an inner spinning component and an outer spinning component. The inner spinning component abuts against the inner wall of the product (5), and the outer spinning component abuts against the outer wall of the product (5).

2. The moldless double-rotating CNC spinning device according to claim 1, characterized in that, The first spinning mechanism (2) includes a first outer spinning component (21), a first inner spinning component (22) and a first lifting component (23). The driving end of the first lifting component (23) is driven to be connected to the first outer spinning component (21) and the first inner spinning component (22). The first lifting component (23) is used to control the first outer spinning component (21) and the first inner spinning component (22) to lift synchronously.

3. The moldless double-rotating CNC spinning device according to claim 2, characterized in that, The second spinning mechanism (3) includes a second outer spinning component (31), a second inner spinning component (32), and a second lifting component (33). The driving end of the second lifting component (33) is driven to connect with the second outer spinning component (31) and the second inner spinning component (32). The second lifting component (33) is used to control the second outer spinning component (31) and the second inner spinning component (32) to lift synchronously.

4. The moldless double-rotating CNC spinning device according to claim 1, characterized in that, The first spinning mechanism (2) includes a third outer spinning component (24), a third inner spinning component (25), a third lifting component (26), and a fourth lifting component (27). The third lifting component (26) is drivenly connected to the third outer spinning component (24), and the third lifting component (26) is used to control the lifting of the third outer spinning component (24). The fourth lifting component (27) is driven to connect with the third inner spinning component (25), and the fourth lifting component (27) is used to control the lifting of the third inner spinning component (25).

5. The moldless double-rotating CNC spinning device according to claim 4, characterized in that, The second spinning mechanism (3) includes a fourth outer spinning component (34), a fourth inner spinning component (35), a fifth lifting component (36) and a sixth lifting component (37). The fifth lifting component (36) is driven to connect with the fourth outer spinning component (34), and the fifth lifting component (36) is used to control the lifting of the fourth outer spinning component (34). The sixth lifting component (37) is driven to connect with the fourth inner spinning component (35), and the sixth lifting component (37) is used to control the lifting of the fourth inner spinning component (35).

6. The moldless double-rotating CNC spinning device according to claim 1, characterized in that, The external spinning component includes an external spinning cutter (41) and a first driving member (42). The first driving member (42) is driven to connect with the external spinning cutter (41). The first driving member (42) is used to control the external spinning cutter (41) to move in the D direction or the A direction.

7. The moldless double-rotating CNC spinning device according to claim 1, characterized in that, The internal spinning component includes an internal spinning cutter (43) and a second driving member (44). The second driving member (44) is drivenly connected to the internal spinning cutter (43) and is used to control the internal spinning cutter (43) to move in the D direction or the A direction.

8. The moldless double-rotating CNC spinning device according to any one of claims 1-7, characterized in that, The internal spinning component includes an internal spinning tool (43), a tool changing cylinder (45), and a second drive component (44). The tool changing cylinder (45) is drivenly connected to the internal spinning tool (43), and the tool changing cylinder (45) is used to control the internal spinning tool (43) to move in the E direction or the R direction. The second driving member (44) is driven to connect with the inner spinning pressing member (43), and the second driving member (44) is used to control the inner spinning pressing member (43) to move in the D direction or the A direction.

9. The moldless double-rotating CNC spinning device according to any one of claims 1-7, characterized in that, The spindle mechanism (1) includes a clamp (11), a rotating component (12), and a driving component (13). The driving component (13) is driven to the clamp (11) and is used to control the clamping degree of the clamp (11) on the product (5). The rotating component (12) is driven to the clamp (11) and is used to control the clamp (11) to drive the product (5) to rotate.

10. The moldless double-rotating CNC spinning device according to claim 9, characterized in that, The clamp (11) includes a clamping block (111) and an inner inclined block (112). The inner inclined block (112) is movably connected to the clamping block (111). The clamping block (111) is provided with a first inclined surface (113), and the inner inclined block (112) is provided with a second inclined surface (114). The first inclined surface (113) and the second inclined surface (114) abut against each other. The driving component (13) is driven to connect with the inner inclined block (112) and is used to control the lifting and lowering action of the inner inclined block (112).

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