Numerical control spinning forming device for celadon green body

Abstract

The invention relates to the technical field of celadon processing, in particular to a celadon green body numerical control spinning forming device which comprises an equipment machine table, and a spinning execution module for driving a rotating mold and an equipment supporting frame for bearing the mold are arranged on the machine table. A lifting driver is installed on one side of the machine table through a side support, and an angle adjusting assembly is arranged on the top of a lifting column of the lifting driver. The assembly adopts a warping plate structure with the supporting frame as a fulcrum, and lifting of one end of the warping plate is adjusted through an independent driver, so that the pitching angle of the tool rest arm installed at the other end of the warping plate is accurately controlled. A spinning forming wheel is arranged at the tail end of the tool rest arm, and the horizontal orientation of the spinning forming wheel can be further adjusted through a horizontal steering mechanism. In addition, a plurality of auxiliary stabilizing rollers are annularly distributed on the periphery of the rotating mold, and the rollers are installed on sliding blocks capable of sliding in the radial direction through supporting mechanisms. According to the device, the forming precision, the complex modeling adaptability and the production consistency of the celadon green body are remarkably improved, and meanwhile the machining stability and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of celadon processing technology, specifically a CNC spinning forming device for celadon blanks. Background Technology

[0002] Celadon, as an important representative of traditional Chinese ceramics, relies heavily on the shaping of its clay body, a crucial process that determines the final form and artistic value of the finished product. Spin forming is a classic technique, using a rotating mold and specific tools to compress and stretch the clay into shape. Currently, there are two main forms of forming technology in this field: one relies entirely on manual spinning by artisans, and the other uses simple CNC or mechanical transmission-assisted spinning equipment. Manual operation demands extremely high levels of experience from the artisan, resulting in low production efficiency and difficulty in ensuring product consistency.

[0003] Existing equipment typically includes a machine base that drives a rotating mold and a tool mounting arm capable of lateral or longitudinal feed. While this equipment achieves a degree of mechanization, the tool's orientation is often fixed or can only be adjusted with very limited coarseness, relying heavily on manual mechanical locking mechanisms. The entire device lacks effective suppression of radial vibrations that may occur when the rotating mold operates at high speeds. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC spinning forming device for celadon blanks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A CNC spinning forming device for celadon blanks includes a workstation and a machine platform mounted on the workstation. A spinning execution module is mounted on the machine platform, and a support bracket is mounted on the spinning execution module. A side support is also mounted on the machine platform, and a lifting driver is installed on the side support. A lifting column for lifting is mounted on the lifting driver. An angle adjustment component is mounted on the top of the lifting column, and a tool holder arm is mounted on the angle adjustment component. The angle adjustment component includes a support base and a support column mounted on the support base. A rocker support frame and a support are mounted on the top of the support column. The support rocker arm is supported within the rocker support frame, with a drive connector at one end and a cutter arm at the other end. A driver mounting base is located on the side edge of the support base, housing an angle adjustment driver. The drive end of the angle adjustment driver is connected to the drive connector to adjust the working angle of the support rocker arm. The cutter arm includes a boom body, a cutter extension arm mounted on the boom body, and a cutter mounting base mounted on the cutter extension arm. A spinning forming wheel is located on the cutter mounting base.

[0006] As a further embodiment of the present invention: a secondary steering support is provided on the support rocker plate, a secondary steering wheel is installed on the secondary steering support, and a disc support block is provided at the end of the boom body, the disc support block being rotatably installed on the secondary steering wheel.

[0007] As a further aspect of the present invention: the equipment support frame includes a support frame base and a rotating mold. The support frame base is installed on the table surface of the equipment platform. A support frame column is provided on the support frame base. A support frame top plate is installed on the support frame column through a support frame crossbeam. The rotating mold is mounted on the support frame top plate.

[0008] As a further aspect of the present invention: a plurality of auxiliary stabilizing rollers are provided on the periphery of the rotating mold, the auxiliary stabilizing rollers being arranged in a ring around the periphery of the rotating mold and fixedly installed by a roller mounting bracket.

[0009] As a further aspect of the present invention: a support rod is provided below the auxiliary stabilizing roller, and a track slider is installed at the bottom end of the support rod via a height adjustment block.

[0010] As a further aspect of the present invention: the spinning execution module is provided with an inner track, and the track slider is slidably embedded in the inner track.

[0011] As a further aspect of the present invention: the lifting driver drives the lifting column to move vertically.

[0012] Compared with the prior art, the beneficial effects of the present invention are: I. By setting up an angle adjustment component consisting of a rocker lever mechanism and cooperating with an independent lifting drive, independent, precise and stepless numerical control adjustment of the height and pitch angle of the spinning forming cutter head is achieved, solving the process problem of the difficulty in finely controlling the cutter angle.

[0013] Second, a horizontal steering mechanism was introduced into the tool head mounting structure, which adds a rotational degree of freedom in the horizontal plane to the forming tool, thereby realizing three-degree-of-freedom coordinated control of the tool's spatial posture, greatly enhancing its adaptability to forming complex curved surfaces and special textures.

[0014] Third, a radially adjustable annular auxiliary stabilizing roller system is designed around the rotating mold. This system can effectively suppress radial vibration and oscillation during high-speed spinning, and significantly improve the dynamic rigidity and operational stability of the spindle-mold system.

[0015] These innovations work synergistically to achieve the following technological effects: transforming the traditional celadon spinning process, which relies on manual experience, into a programmable and reproducible digital precision manufacturing process; significantly improving the forming accuracy, thickness uniformity, and shape consistency of the blanks; significantly expanding the equipment's ability to process complex artistic shapes; and simultaneously, by enhancing system stability, allowing for higher processing speeds, thereby improving production efficiency and reducing scrap rates, providing reliable technical equipment for the industrialization and high-quality production of celadon products.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of the CNC spinning forming device for celadon blanks provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the angle adjustment component provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the equipment support bracket provided in an embodiment of the present invention.

[0021] Figure 4 For the present invention Figure 3 A schematic diagram of the structure of region A in the middle.

[0022] In the diagram: 1. Equipment station; 11. Equipment platform; 12. Side support; 13. Lifting driver; 14. Lifting column; 15. Spinning execution module; 2. Angle adjustment assembly; 21. Support base; 22. Support column; 23. Rocker support frame; 24. Support rocker; 25. Driver mounting base; 26. Angle adjustment driver; 27. Driver connector; 3. Tool holder arm; 31. Arm body; 32. Tool head extension arm; 33. Tool head mounting base; 34. Spinning forming wheel; 4. Equipment support bracket; 41. Support bracket base; 42. Support bracket column; 43. Support bracket crossbeam; 44. Support bracket top plate; 45. Rotating mold; 5. Stability auxiliary assembly; 51. Auxiliary stabilizing roller; 52. Roller mounting bracket; 53. Support pole; 54. Height adjustment block; 55. Track slider; 61. Secondary steering support; 62. Secondary steering wheel; 63. Wheel support block. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, examples of which are illustrated in the drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or identical elements.

[0024] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] Example 1: This example provides a basic configuration of a CNC spinning forming device for celadon blanks. Referring to the attached drawings, the entire device is mounted on a workstation 1. A machine base 11 is fixedly installed on the upper part of the workstation 1, forming the supporting foundation of the entire device. A spinning execution module 15 is installed in the center of the machine base 11, which integrates a main drive motor and a precision transmission system. A machine support bracket 4 is stably installed above the spinning execution module 15.

[0027] A side bracket 12 is vertically fixed to one side (e.g., the right side) of the platform of the equipment 11. A lifting drive 13, preferably a servo electric cylinder or a hydraulic cylinder, is mounted on the top of the side bracket 12. The drive end of the lifting drive 13 is connected downward and drives a lifting column 14 to perform vertical reciprocating motion. The top of the lifting column 14 is rigidly connected to the bottom of the angle adjustment assembly 2 via a flange or bolts. Specifically, the angle adjustment assembly 2 includes a support base 21 fixed to the top of the lifting column 14. A support column 22 extends vertically upward from the center of the upper surface of the support base 21. A roughly U-shaped rocker support frame 23 is fixed to the top of the support column 22. A long strip rocker support 24 is mounted and supported in the frame of the rocker support frame 23 via a pivot or by direct surface contact, so that the rocker support 24 can swing up and down with the rocker support frame 23 as the fulcrum. The end of the rocker support 24 near the side bracket 12 (i.e., the right end) is bent downward to form a drive connector 27. An integrally formed or fixed driver mounting base 25 is formed on the side edge of the support base 21, and an angle adjustment driver 26 (such as a miniature servo electric cylinder) is horizontally mounted inside it. The piston rod end of the angle adjustment driver 26 is connected to the drive connector 27 of the support rocker 24 via a hinge joint. The other end of the support rocker 24 away from the drive connector 27 (i.e., the left end) is fixedly mounted with the tool holder arm 3.

[0028] The cutter arm 3 specifically includes an arm body 31 fixedly connected to the end of the support rocker 24. The arm body 31 extends generally horizontally to the left, and a cutter head extension arm 32 is fixed to its end. A cutter head mounting seat 33 is provided at the end of the cutter head extension arm 32. A spinning forming wheel 34 for extruding and shaping the clay is rotatably mounted on the cutter head mounting seat 33 via bearings.

[0029] The equipment support bracket 4 is positioned above and driven by the spinning execution module 15. It includes a support bracket base 41 fixed to the equipment platform 11. At least two support bracket columns 42 rise vertically from the support bracket base 41, with the tops of the columns connected to and supporting a horizontal support bracket top plate 44 via a horizontal support bracket beam 43. A rotating mold 45 (such as a plaster mold) for supporting and fixing the celadon clay blank is mounted at the center of the support bracket top plate 44 via a spindle and clamps. This spindle passes downwards through the support bracket top plate 44 and connects to the main drive output of the spinning execution module 15, thus enabling it to be driven to rotate at high speed.

[0030] During operation, the operator first places the prepared celadon clay cake onto the rotating mold 45 and initially fixes it. The CNC system is activated, and the spinning execution module 15 operates, driving the rotating mold 45 and the clay cake on it to rotate at high speed around the vertical axis. Simultaneously, the lifting driver 13 operates according to program instructions, driving the entire angle adjustment assembly 2 and the tool holder arm 3 to rise and fall to the predetermined height via the lifting column 14, aligning the spinning forming wheel 34 with the starting processing position of the clay cake (such as the top edge of the clay cake). Subsequently, the angle adjustment driver 26 extends or retracts, pushing and pulling the support rocker 24 through the drive connector 27, causing it to swing around the fulcrum of the rocker support frame 23, thereby precisely adjusting the pitch angle of the tool holder arm 3 and the spinning forming wheel 34 at its end. While the rotating mold 45 continues to rotate, the spinning execution module 15 may also drive the entire equipment support frame 4 or the main shaft of the rotating mold 45 to make a small axial feed. Under the control of the CNC system, the spinning forming wheel 34, with its angle and height adjusted, can gradually contact and apply pressure to the surface of the rotating clay cake along a preset trajectory. Under the combined action of the extrusion pressure of the spinning forming wheel 34 and the centrifugal force generated by the rotation, the clay blank is evenly extended and conforms to the surface of the rotating mold 45, finally forming the desired shape of the celadon blank (such as bowls, plates, bottles, etc.).

[0031] This embodiment integrates the lifting drive 13 and the angle adjustment component 2 to achieve independent and precise CNC adjustment of the spinning forming wheel 34 in terms of vertical height and working angle. The angle adjustment component 2 adopts a unique rocker lever structure, driven by a single angle adjustment drive 26. Its compact structure and sensitive response enable stepless fine adjustment of the working angle of the spinning forming wheel 34. This solves the problems of difficult and low-precision tool angle adjustment in traditional spinning devices, making it particularly suitable for forming celadon blanks requiring complex curved surfaces or specific angle transitions, significantly improving forming accuracy and product consistency. The entire device has a reasonable layout and a high degree of automation, realizing a key transformation in celadon spinning forming from "reliability for manual experience" to "digital program control."

[0032] Example 2: Based on the overall structure of Example 1, this example makes significant improvements to the connection method between the tool holder arm 3 and the angle adjustment component 2, as well as the adjustment function of the tool holder arm 3 itself, in order to further enhance the processing flexibility and adaptability to complex shapes.

[0033] Referring to the accompanying drawings, in this embodiment, a secondary steering support 61 is fixedly mounted on the upper surface of one end (left end) of the tool holder arm 3, which is used for mounting the support rocker plate 24. The secondary steering support 61 is preferably an upwardly protruding cylindrical base. A secondary steering wheel 62 is rotatably mounted on the secondary steering support 61 via its central lower pivot, allowing the secondary steering wheel 62 to rotate 360 ​​degrees in the horizontal plane. The upper surface of the secondary steering wheel 62 is provided with a mounting interface or threaded holes.

[0034] Corresponding to the tool holder arm 3, a disc support block 63 is fixedly installed at the bottom of the arm body 31 near the right end of the support rocker 24. The disc support block 63 is fixedly connected to the upper surface of the secondary steering wheel 62 by bolts or locating pins. Therefore, the tool holder arm 3 is no longer rigidly fixed to the support rocker 24, but is rotatably connected relative to the support rocker 24 in the horizontal plane through the cooperation of the disc support block 63 and the secondary steering wheel 62. Preferably, a locking mechanism is integrated on the secondary steering support 61 or the secondary steering wheel 62, which can be fixed after the angle is adjusted.

[0035] The remaining parts, such as the equipment base 11, the spinning execution module 15, the side bracket 12, the lifting driver 13, the lifting column 14, the support seat 21 to the angle adjustment driver 26 of the angle adjustment component 2, and the structure of the equipment support bracket 4, are the same as or similar to those in Embodiment 1, and will not be described again here.

[0036] Before or during processing, when it is necessary to adjust the cutting direction or processing trajectory tangent direction of the spinning forming wheel 34, in addition to adjusting its pitch angle via the angle adjustment component 2 as described in Embodiment 1, this embodiment provides additional degrees of freedom. The operator or CNC system can control the rotation of the secondary steering wheel 62 relative to the secondary steering support 61. Since the tool holder arm 3 is fixed to the secondary steering wheel 62 via the disc support block 63, the tool holder arm 3 will drive the spinning forming wheel 34 at its end to change its orientation in the horizontal plane. For example, the spinning forming wheel 34 can be adjusted from a direction perpendicular to the tangent of the clay body's rotation to a direction at a certain angle to the tangent to adapt to different extrusion pressure distributions and clay flow requirements. This horizontal steering adjustment can be coordinated with lifting and pitch adjustments to achieve precise control of the "three degrees of freedom" of the spinning forming wheel 34's spatial attitude. This function is particularly useful when processing celadon blanks with asymmetrical features or requiring special texture effects.

[0037] This embodiment introduces a secondary steering wheel 62 structure between the support rocker arm 24 and the tool holder arm 3, increasing the horizontal rotational freedom of the spinning forming wheel 34. This improvement allows for more comprehensive and flexible tool posture adjustment, meeting the requirements of more complex celadon vessel shapes and surface forming processes. For example, when producing blanks with twisted surfaces or requiring scraping textures in a specific direction, the spinning forming wheel 34 can be precisely controlled to contact the clay blank at the optimal angle and direction. This greatly expands the applicability of CNC spinning technology and enhances the artistic creation and technological expression of the device. Simultaneously, this secondary steering structure is simple and reliable, easily enabling automatic or semi-automatic control, further improving the equipment's intelligence level and processing accuracy.

[0038] Example 3: Based on Example 1 or 2, this example focuses on strengthening the design of the equipment support bracket 4 and its surrounding stabilization system, aiming to improve the stability of large or high-diameter-ratio celadon blanks during high-speed spinning and prevent vibration and eccentricity.

[0039] Referring to the attached drawings, multiple roller mounting frames 52 are evenly arranged around the periphery of the rotating mold 45 on the top plate 44 of the support frame, preferably 3 to 6 in number. Each roller mounting frame 52 has an auxiliary stabilizing roller 51 mounted on it via a horizontally positioned rotating shaft. The rolling surfaces of all the auxiliary stabilizing rollers 51 together form a virtual annular guide rail, which is concentric with the outer circumferential surface of the rotating mold 45 and maintains a small gap. The auxiliary stabilizing rollers 51 can be made of materials with a certain degree of elasticity, such as nylon or polyurethane, to reduce rigid impact on the mold.

[0040] To ensure the stability of this auxiliary stabilization system and to provide it with some adjustment functionality, a vertical support rod 53 is connected to the bottom of each roller mounting bracket 52. The bottom end of the support rod 53 passes through a height adjustment block 54. The height adjustment block 54 has through holes and locking screws that match the support rod 53. By loosening the locking screws, the support rod 53 can be slid up and down to fine-tune the height of its top roller mounting bracket 52 and auxiliary stabilizing roller 51. After leveling, it is then locked. A track slider 55 is fixedly installed at the bottom of the height adjustment block 54.

[0041] Correspondingly, on the upper surface of the spinning execution module 15 or at the corresponding position of the equipment base 11, inner rails (not shown in the figure, but may be T-slots, linear guide rails, etc.) are provided, each corresponding to one of the aforementioned multiple track sliders 55. Each track slider 55 is precisely slidably embedded in its corresponding inner rail. These inner rails are arranged radially with the rotation axis of the rotating mold 45 as the center. The cooperation between the track sliders 55 and the inner rails not only provides precise radial positioning and horizontal support for the auxiliary stabilizing roller system, but also allows for slight radial adjustment of the entire roller system to accommodate rotating molds 45 of different diameters.

[0042] When installing rotary molds 45 of different sizes, first, according to the mold diameter, move each track slider 55 and its entire stabilizing unit (including height adjustment block 54, support rod 53, roller mounting bracket 52, and auxiliary stabilizing rollers 51) radially along the radial inner track. This ensures that the inner surfaces of all auxiliary stabilizing rollers 51 form a ring that fits the outer diameter of the mold, maintaining a uniform gap of approximately 1-3 mm. The absolute height of each auxiliary stabilizing roller 51 can be finely adjusted using the height adjustment block 54 to ensure they are on the same horizontal plane and aligned with the center of the mold height.

[0043] During the spinning process, the rotating die 45 rotates at high speed driven by the spinning execution module 15. Due to the inhomogeneity of the clay blank itself or the effect of centrifugal force, the die and spindle system may experience slight radial vibration or oscillation. At this time, the annularly arranged auxiliary stabilizing rollers 51 act like an invisible "clamp," gently restraining the radial movement of the rotating die 45 from all sides. Any slight tendency of eccentricity is suppressed and damped by the rolling contact of the nearest auxiliary stabilizing rollers 51, thereby controlling the vibration amplitude to an extremely low level. This ensures stable contact pressure between the spinning forming wheel 34 and the rotating clay blank, avoiding defects such as uneven blank thickness and surface chatter marks caused by vibration.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A CNC spinning forming device for celadon blanks, comprising a workstation (1) and a machine platform (11) set on the workstation (1), wherein a spinning execution module (15) is provided on the machine platform (11), and a machine support bracket (4) is provided on the spinning execution module (15); a side support (12) is also provided on the table surface of the machine platform (11), a lifting driver (13) is installed on the side support (12), a lifting column (14) for lifting is provided on the lifting driver (13), an angle adjustment component (2) is provided on the top of the lifting column (14), and a tool holder arm (3) is installed on the angle adjustment component (2); characterized in that: The angle adjustment component (2) includes a support base (21) and a support column (22) disposed on the support base (21). The top of the support column (22) is provided with a rocker support frame (23) and a rocker support (24). The rocker support (24) is supported by the rocker support frame (23) with the rocker support frame (23) as the fulcrum. One end of the rocker support (24) is provided with a drive connector (27), and the tool holder arm (3) is disposed at the other end of the rocker support (24). The side edge of the support base (21) is provided with A driver mounting base (25) is provided, and an angle adjustment driver (26) is provided inside the driver mounting base (25). The driving end of the angle adjustment driver (26) is connected to the driving connector (27) to adjust the working angle of the support rocker (24). The tool holder arm (3) includes a boom body (31), a tool extension arm (32) provided on the boom body (31), and a tool mounting base (33) installed on the tool extension arm (32). A spinning forming wheel (34) is provided on the tool mounting base (33).

2. The CNC spinning forming device for celadon blanks according to claim 1, characterized in that: The support rocker arm (24) is provided with a secondary steering support (61), and a secondary steering wheel (62) is installed on the secondary steering support (61). The boom body (31) is provided with a disc support block (63) at the frame end, and the disc support block (63) is rotatably installed on the secondary steering wheel (62).

3. The CNC spinning forming device for celadon blanks according to claim 1, characterized in that: The equipment support frame (4) includes a support frame base (41) and a rotating mold (45). The support frame base (41) is installed on the table surface of the equipment platform (11). A support frame column (42) is provided on the support frame base (41). A support frame top plate (44) is installed on the support frame column (42) through a support frame crossbeam (43). The rotating mold (45) is mounted on the support frame top plate (44).

4. The CNC spinning forming device for celadon blanks according to claim 3, characterized in that: The rotating mold (45) is also provided with a number of auxiliary stabilizing rollers (51) arranged in a ring around the rotating mold (45) and fixedly installed by roller mounting brackets (52).

5. The CNC spinning forming device for celadon blanks according to claim 4, characterized in that: A support rod (53) is provided below the auxiliary stabilizing roller (51), and a track slider (55) is installed at the bottom end of the support rod (53) through a height adjustment block (54).

6. The CNC spinning forming device for celadon blanks according to claim 5, characterized in that: The spinning execution module (15) is provided with an inner track, and the track slider (55) is slidably embedded in the inner track.

7. The CNC spinning forming device for celadon blanks according to claim 1, characterized in that: The lifting driver (13) drives the lifting column (14) to move vertically.

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