Fixing structure of special-shaped cutter and intelligent die cutting equipment

Abstract

The utility model relates to a fixing structure of a special-shaped cutter and intelligent die cutting equipment. The fixing structure of the special-shaped cutter comprises a base body fixing plate, a detachable cutter body and four sets of positioning assemblies. The section of the detachable cutter body is of an octagonal structure and comprises four sets of main assembling faces and four sets of auxiliary assembling faces, and the bottom of the cutter body extends to form a cutting edge. The positioning assembly comprises a spherical air bag, the fixed end of the spherical air bag is connected to the side wall of the fixing groove, the free end of the spherical air bag is provided with a wave-shaped contact part matched with the curvature of the main assembling face, the spherical air bag generates isotropic expansion in the inflated state, and the wave-shaped contact part and the main assembling face are in gridding face contact. The air bag expands uniformly after being inflated, the wave-shaped contact part and the main assembly surface of the cutter body form multi-point distributed contact, local stress concentration is avoided, the flexible material of the air bag can adapt to machining errors of the surface of the cutter body, the air bag serves as an elastic element to absorb cutting vibration energy, and the fracture risk of the cutter body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of intelligent die-cutting equipment, and more specifically, to a fixing structure for irregularly shaped cutting tools and an intelligent die-cutting device. Background Technology

[0002] Traditional methods for securing irregularly shaped cutting tools often employ bolt tightening or slotted positioning; however, these methods have several significant drawbacks. Firstly, localized stress concentration is a prominent issue. Due to the rigid contact nature of these methods, the tool body is prone to deformation or even breakage during the fixing process. For example, some tools are secured using locating blocks and connectors, but in practical applications, the problems caused by mechanical stress concentration cannot be avoided, severely impacting tool life and machining accuracy.

[0003] Secondly, the reliance on the machining accuracy of the tool body is too high. Traditional fixing methods place extremely stringent requirements on the machining accuracy of the tool body, with poor tolerance for error. Once there is an error in the assembly surface of the irregular structure, it is easy to cause installation failure. This not only increases the difficulty and cost of tool manufacturing, but also reduces the reliability of the entire machining system.

[0004] Furthermore, its vibration damping capability is weak. During the cutting process, the tool is subject to vibration, and traditional fixing methods cannot effectively buffer these vibrations. Current research shows that air springs have good vibration damping performance, but this technology has not yet been applied in tool fixing scenarios. Therefore, cutting vibrations are directly transmitted to the tool body, thus affecting machining quality, leading to problems such as increased surface roughness and decreased dimensional accuracy. In severe cases, it can even cause tool damage and disrupt normal production. Utility Model Content

[0005] In view of this, the present invention provides a fixing structure for irregularly shaped cutting tools. After the airbag is inflated, it expands uniformly, and the wave-shaped contact part forms a multi-point distributed contact with the main assembly surface of the cutting tool, avoiding local stress concentration. The flexible material of the airbag can adapt to the machining error of the cutting tool surface. The airbag, as an elastic element, absorbs the cutting vibration energy and reduces the risk of cutting tool breakage.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A fixing structure for an irregularly shaped cutting tool includes a base fixing plate, a detachable cutting tool body, and four sets of positioning components. A fixing groove is formed in the middle of the bottom surface of the base fixing plate along its width. The detachable cutting tool body is a cemented carbide cutting tool with an octagonal cross-section, comprising eight assembly surfaces: four main assembly surfaces and four auxiliary assembly surfaces. A cutting edge with its cutting edge facing outwards extends from the bottom of the cutting tool body. The four sets of positioning components are respectively disposed beside the four main assembly surfaces. Each positioning component includes a spherical airbag. The fixed end of the spherical airbag is connected to the side wall of the fixing groove, and the free end forms a wavy contact portion that matches the curvature of the main assembly surface. In the inflated state, the spherical airbag undergoes isotropic expansion, causing the wavy contact portion to form a grid-like surface contact with the main assembly surface.

[0008] The detachable blade body is secured by four sets of rectangularly arranged spherical airbags, providing robust protection and significantly extending its lifespan and overall performance. Specifically, the spherical airbags expand isotropically upon inflation, allowing their wavy contact surfaces to tightly adhere to the main assembly surface of the blade body, forming a grid-like contact pattern. This unique contact method ensures extremely uniform force distribution across the blade body in all directions, effectively preventing excessive localized stress and thus preventing deformation or damage due to localized stress concentration. This comprehensive protection of the blade's structural integrity significantly extends its service life.

[0009] Meanwhile, the spherical airbag itself possesses excellent flexibility and deformability, enabling it to exhibit strong adaptability to minor unevenness and curvature variations on the tool body's assembly surface. Even if there are certain machining errors or shape deviations on the tool body's assembly surface, the spherical airbag can precisely fill the gaps due to its deformation characteristics, achieving a tight fit with the tool body and ensuring stable fixation. This characteristic significantly improves the fixing structure's tolerance to tool body manufacturing precision, reducing installation problems and potential risks caused by tool body manufacturing errors.

[0010] During the cutting process, the cutting tool inevitably experiences varying degrees of impact and vibration. The spherical airbag, as an elastic element, provides excellent cushioning and shock absorption. It effectively absorbs and disperses the impact and vibration energy generated during cutting, reducing the direct impact of these forces on the tool body and the base plate. This not only reduces the risk of cracks or breakage in the tool body due to excessive stress but also provides a more stable environment for the machining process, helping to improve machining accuracy and ensure consistent machining quality.

[0011] Furthermore, the inflation and deflation of the spherical airbag is extremely simple and convenient. By precisely controlling the inflation volume of the airbag, its expansion degree can be easily adjusted, thereby achieving precise control over the fixing force on the cutter body. When installing and removing the cutter body, simply inflating or deflating the airbag easily completes the fixing and release of the cutter body. This convenient operation method greatly improves the efficiency of cutter replacement, significantly reduces equipment downtime, and thus effectively improves production efficiency, bringing more convenience and benefits to the company's production operations.

[0012] Preferably, the fixed end of the spherical airbag is embedded in the hemispherical groove of the metal base, and the metal base is fixed to the side wall of the fixed groove.

[0013] This embedding method makes the connection between the spherical airbag and the metal base more stable and reliable. The hemispherical groove design effectively limits the range of motion of the fixed end of the spherical airbag, preventing it from loosening or falling off during operation, thus ensuring the stability of the entire fixing structure. The metal base is fixed to the side wall of the fixing groove, further enhancing the connection's firmness. This allows the spherical airbag to effectively transfer the force from the blade to the base fixing plate when subjected to various forces from the blade, avoiding problems such as inaccurate blade positioning or fixing failure caused by loose connection, and providing a solid foundation for the stable operation of the blade.

[0014] Preferably, the sidewall of the fixing groove is provided with a concave mounting position, and the metal base is mounted on the concave mounting position.

[0015] The concave mounting position design allows the metal base to better fit against the sidewall of the fixing groove, increasing the contact area between the metal base and the sidewall of the fixing groove, thereby improving the stability and reliability of the connection. At the same time, the concave mounting position also provides a certain degree of positioning and limiting for the metal base, ensuring that the metal base can be accurately positioned to the predetermined position during installation. This avoids problems such as poor contact between the spherical airbag and the tool body assembly surface caused by installation position deviations, which helps to improve the fixing accuracy and stability of the tool body.

[0016] Preferably, an elastic buffer layer is laid at the bottom of the fixing groove.

[0017] The elastic buffer layer effectively absorbs and buffers the impact and vibration energy generated by the tool body during cutting, reducing the direct impact of these forces on the base plate, thus protecting the base plate from damage and extending its service life. In addition, the elastic buffer layer also provides some vibration and noise reduction, lowering the noise level during cutting and improving the working environment. Simultaneously, the elastic buffer layer can also compensate for the gap between the tool body and the fixing groove to a certain extent, improving the installation accuracy and stability of the tool body and ensuring that the tool body maintains good cutting performance and machining accuracy during cutting.

[0018] Preferably, the inner wall of the fixing groove is provided with an elastic pad.

[0019] The elastic pad can effectively absorb the direct impact on the fixing groove when the blade accidentally comes into contact with the inner wall of the fixing groove during the disassembly and assembly process, thereby protecting the base fixing plate from damage and extending its service life.

[0020] Preferably, it also includes an air passage disposed within the base fixing plate, the air passage being connected to an external air pump via a connector, and the end of the air passage being provided with airway branches that are respectively connected to multiple spherical airbags.

[0021] This air passage design makes the entire fixed structure's air supply system more efficient and convenient. The air passage is built into an integrated base plate, resulting in a compact structure and rational layout that effectively saves space. The connectors facilitate connection to external air pumps, enabling quick on / off switching of the air passage and improving work efficiency. Furthermore, the multiple air channel branches at the end of the air passage provide a stable and independent air source for each spherical airbag, ensuring uniform inflation of each airbag and stable fixation of the blade, thus improving the reliability and stability of the fixed structure.

[0022] Preferably, a pressure sensor and an electromagnetic proportional valve are integrated on the air passage, and the pressure sensor is connected to the controller signal to form a closed-loop pressure control system.

[0023] The introduction of this closed-loop pressure control system makes the control of pressure inside the spherical airbag more precise and intelligent. Pressure sensors monitor pressure changes in the air passage in real time and feed the pressure signal back to the controller. Based on the feedback signal, the controller precisely adjusts the pressure in the air passage through an electromagnetic proportional valve, thereby achieving precise control of the pressure inside the spherical airbag. This closed-loop control method ensures that the spherical airbag remains within a suitable working pressure range during operation, avoiding problems such as insecure blade fixation or damage due to excessively high or low pressure. This improves the fixation accuracy and stability of the blade and also extends the service life of the spherical airbag.

[0024] Preferably, a pressure sensor is provided inside the spherical airbag, which is used to monitor the pressure inside the airbag and transmit the pressure signal to an external control device.

[0025] A pressure sensor is installed inside the spherical airbag to directly and accurately acquire internal pressure information. These pressure signals are transmitted to an external control device, providing operators with real-time airbag pressure data, allowing them to monitor the airbag's operational status. If abnormal pressure occurs inside the airbag, operators can quickly take appropriate measures based on the pressure signal, such as adjusting the air pump's supply or checking for leaks, thus ensuring stable tool fixation and smooth cutting. This design improves the safety and reliability of the entire fixing structure, providing strong support for the efficient and stable operation of the cutting tool.

[0026] As another implementation of this utility model, a fixing structure for an irregularly shaped cutting tool includes a base fixing plate, a detachable cutting tool body, and three sets of positioning components. A fixing groove is formed in the middle of the bottom surface of the base fixing plate along the width direction. The detachable cutting tool body is a cemented carbide cutting tool body with a hexagonal cross-section, including six assembly surfaces, namely three sets of main assembly surfaces and three sets of auxiliary assembly surfaces. The bottom of the cutting tool body extends to form a cutting edge with the cutting edge facing outward. The three sets of positioning components are respectively arranged next to the three sets of main assembly surfaces. Each set of positioning components includes a spherical air bladder. The fixed end of the spherical air bladder is connected to the side wall of the fixing groove, and the free end forms a wave-shaped contact part that matches the curvature of the main assembly surface. When inflated, the spherical air bladder expands isotropically, so that the wave-shaped contact part forms a grid-like surface contact with the main assembly surface.

[0027] The detachable blade body is secured by three sets of triangularly distributed spherical airbags, which provide strong protection for the blade body and significantly improve its service life and overall performance.

[0028] As another implementation of this utility model, an intelligent die-cutting device includes a fixing structure for the irregularly shaped cutter as described above.

[0029] Optimized processing: Due to the numerous advantages mentioned above, the fixed structure of the irregular-shaped cutter allows it to operate more stably and efficiently on intelligent die-cutting equipment. Stable cutter fixation reduces vibration and offset during die-cutting, improving precision and quality, meeting higher processing standards, and producing superior products.

[0030] Enhanced equipment adaptability: This fixed structure has a high tolerance for cutter bodies with different manufacturing precision, enabling intelligent die-cutting equipment to adapt to irregularly shaped cutters from various sources and with different precision levels. This enhances the equipment's versatility and applicability, reduces usage limitations caused by cutter compatibility issues, and improves the overall value of the equipment.

[0031] Reduced maintenance costs: The extended lifespan of the blade and the ease of installation and disassembly reduce the cost of blade replacement and shorten maintenance time during the maintenance of intelligent die-cutting equipment. This further improves the operating efficiency and economic benefits of the equipment, providing strong support for the long-term stable development of enterprises.

[0032] The advantages of this utility model compared to the prior art are:

[0033] The fixing structure of this utility model for irregularly shaped cutting tools uses four sets of rectangularly distributed spherical airbags to secure the detachable cutting tool body. This provides strong protection for the cutting tool body, significantly improving its service life and overall performance. Specifically, the spherical airbags expand isotropically after inflation, allowing their wavy contact parts to fit tightly against the main assembly surface of the cutting tool body, forming a grid-like surface contact. This unique contact method ensures extremely uniform force distribution on the cutting tool body in all directions, effectively avoiding excessive local stress. This prevents deformation or damage to the cutting tool body due to localized stress concentration, comprehensively protecting the structural integrity of the cutting tool body and significantly extending its service life.

[0034] Meanwhile, the spherical airbag itself possesses excellent flexibility and deformability, enabling it to exhibit strong adaptability to minor unevenness and curvature variations on the tool body's assembly surface. Even if there are certain machining errors or shape deviations on the tool body's assembly surface, the spherical airbag can precisely fill the gaps due to its deformation characteristics, achieving a tight fit with the tool body and ensuring stable fixation. This characteristic significantly improves the fixing structure's tolerance to tool body manufacturing precision, reducing installation problems and potential risks caused by tool body manufacturing errors.

[0035] During the cutting process, the cutting tool inevitably experiences varying degrees of impact and vibration. The spherical airbag, as an elastic element, provides excellent cushioning and shock absorption. It effectively absorbs and disperses the impact and vibration energy generated during cutting, reducing the direct impact of these forces on the tool body and the base plate. This not only reduces the risk of cracks or breakage in the tool body due to excessive stress but also provides a more stable environment for the machining process, helping to improve machining accuracy and ensure consistent machining quality.

[0036] Furthermore, the inflation and deflation of the spherical airbag is extremely simple and convenient. By precisely controlling the inflation volume of the airbag, its expansion degree can be easily adjusted, thereby achieving precise control over the fixing force on the cutter body. When installing and removing the cutter body, simply inflating or deflating the airbag easily completes the fixing and release of the cutter body. This convenient operation method greatly improves the efficiency of cutter replacement, significantly reduces equipment downtime, and thus effectively improves production efficiency, bringing more convenience and benefits to the company's production operations. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a structural diagram of the fixing structure of the irregular-shaped cutting tool in Embodiment 1 of this utility model.

[0039] Figure 2 This is a structural diagram of the fixing structure of the irregular-shaped cutting tool in Embodiment 2 of this utility model.

[0040] Explanation of icon numbers

[0041] I. Matrix Fixing Plate Related

[0042] 1: Base plate (the main part of the tool fixing structure, which supports the tool body and positioning components)

[0043] 11: Fixing groove (a groove formed in the middle of the bottom surface of the base plate for installing the cutter body and positioning components)

[0044] 12: Concave mounting position (a recessed structure on the side wall of the fixing groove, used to fix the metal base)

[0045] 13: Elastic buffer layer (an elastic material layer laid at the bottom of the fixed groove for shock absorption and cushioning)

[0046] 14: Elastic pad (an elastic material layer installed on the inner wall of the fixing groove to enhance the stability of the cutter body during installation)

[0047] II. Detachable Blade Body Related

[0048] 2: Detachable blade body (irregularly shaped blade body made of cemented carbide)

[0049] 21: Assembly surface (the mounting contact surface on the side of the cutter body, including the main assembly surface 21a and the auxiliary assembly surface 21b)

[0050] III. Positioning Components

[0051] 3: Spherical airbag (a flexible positioning element that expands after inflation, used to clamp the tool body assembly surface)

[0052] 4: Metal base (rigid support structure for fixing the spherical airbag)

[0053] 41: Hemispherical slot (a groove on a metal base for embedding the fixed end of a spherical airbag) Detailed Implementation

[0054] 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. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0055] 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 of this application without inventive effort are within the scope of protection of this application.

[0056] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. 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. Therefore, they should not be construed as limitations on this application.

[0057] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0058] The technical solutions in this application will now be described with reference to the accompanying drawings. Example 1

[0059] This embodiment provides a fixing structure for an irregularly shaped cutting tool, including a base fixing plate 1, a detachable cutting tool body 2, and four sets of positioning components. A fixing groove 11 is formed in the middle of the bottom surface of the base fixing plate 1 along the width direction. The detachable cutting tool body 2 is a cemented carbide cutting tool body with an octagonal cross-section, including eight assembly surfaces 21, namely four main assembly surfaces 21a and four auxiliary assembly surfaces 21b. A cutting edge with the cutting edge facing outward extends from the bottom of the cutting tool body. The four sets of positioning components are rectangularly distributed and are respectively set next to the four main assembly surfaces 21a. Each set of positioning components includes a spherical airbag 3. The fixed end of the spherical airbag 3 is connected to the side wall of the fixing groove 11, and the free end forms a wave-shaped contact part that matches the curvature of the main assembly surface 21a. When inflated, the spherical airbag 3 expands isotropically, so that the wave-shaped contact part forms a grid-like surface contact with the main assembly surface 21a.

[0060] The detachable blade body 2 is secured by four sets of rectangularly distributed spherical airbags 3, providing robust protection for the blade body and significantly improving its service life and overall performance. Specifically, the spherical airbags 3 expand isotropically after inflation, allowing their wavy contact parts to fit tightly against the main assembly surface 21a of the blade body, forming a grid-like surface contact. This unique contact method ensures extremely uniform force distribution across the blade body in all directions, effectively preventing excessive local stress and thus preventing deformation or damage due to localized stress concentration. This provides comprehensive protection for the structural integrity of the blade body and significantly extends its service life.

[0061] Meanwhile, the spherical airbag 3 possesses excellent flexibility and deformability, enabling it to adapt strongly to minor unevenness and curvature variations on the tool body assembly surface 21. Even if the tool body assembly surface 21 has a certain range of machining errors or shape deviations, the spherical airbag 3 can precisely fill the gaps using its own deformation characteristics, achieving a tight fit with the tool body and ensuring stable fixation. This characteristic significantly improves the tolerance of the fixing structure to the manufacturing precision of the tool body, reducing installation problems and potential risks caused by manufacturing errors.

[0062] During the cutting process, the cutting tool inevitably experiences varying degrees of impact and vibration. The spherical airbag 3, as an elastic element, provides excellent cushioning and shock absorption. It effectively absorbs and disperses the impact and vibration energy generated during cutting, reducing the direct impact of these forces on the tool body and the base plate 1. This not only reduces the risk of cracks or breakage of the tool body due to excessive stress but also provides a more stable environment for the machining process, helping to improve machining accuracy and ensure the stability of machining quality.

[0063] Furthermore, the inflation and deflation of the spherical airbag 3 is extremely simple and convenient. By precisely controlling the inflation volume of the airbag, its expansion degree can be easily adjusted, thereby achieving precise control of the fixing force on the blade. When installing and removing the blade, simply inflating or deflating the airbag easily completes the fixing and release of the blade. This convenient operation method greatly improves the efficiency of blade replacement, significantly reduces equipment downtime, and thus effectively improves production efficiency, bringing more convenience and benefits to the company's production operations.

[0064] In this embodiment, the fixed end of the spherical airbag 3 is embedded in the hemispherical slot 41 of the metal base 4, and the metal base 4 is fixed to the side wall of the fixed slot 11.

[0065] This embedding method makes the connection between the spherical airbag 3 and the metal base 4 more stable and reliable. The design of the hemispherical groove 41 can effectively limit the range of motion of the fixed end of the spherical airbag 3, preventing it from loosening or falling off during operation, thereby ensuring the stability of the entire fixing structure. The metal base 4 is fixed to the side wall of the fixing groove 11, further enhancing the firmness of the connection. This allows the spherical airbag 3 to effectively transfer the force to the base fixing plate 1 when subjected to various forces from the blade, avoiding problems such as inaccurate blade positioning or fixing failure caused by loose connection, and providing a solid foundation for the stable operation of the blade.

[0066] In this embodiment, the side wall of the fixing groove 11 is provided with a concave mounting position 12, and the metal base 4 is installed in the concave mounting position 12.

[0067] The concave mounting position 12 design allows the metal base 4 to better fit against the side wall of the fixing groove 11, increasing the contact area between the metal base 4 and the side wall of the fixing groove 11, thereby improving the stability and reliability of the connection. Simultaneously, the concave mounting position 12 also provides a certain positioning and limiting function for the metal base 4, ensuring that the metal base 4 can be accurately positioned to the predetermined position during installation. This avoids problems such as poor contact between the spherical airbag 3 and the tool body assembly surface 21 caused by installation position deviations, which is beneficial to improving the fixing accuracy and stability of the tool body.

[0068] In this embodiment, an elastic buffer layer 13 is laid at the bottom of the fixing groove 11.

[0069] The elastic buffer layer 13 effectively absorbs and buffers the impact and vibration energy generated by the tool body during cutting, reducing the direct effect of these forces on the base plate 1, thereby protecting the base plate 1 from damage and extending its service life. Furthermore, the elastic buffer layer 13 also provides some vibration and noise reduction, lowering the noise level during cutting and improving the working environment. Simultaneously, the elastic buffer layer 13 can also compensate for the gap between the tool body and the fixing groove 11 to a certain extent, improving the installation accuracy and stability of the tool body and ensuring that the tool body maintains good cutting performance and machining accuracy during cutting.

[0070] In this embodiment, an elastic pad 14 is provided on the inner wall of the fixing groove 11.

[0071] The elastic pad 14 can effectively absorb the direct impact on the fixing groove 11 when the blade accidentally comes into contact with the inner wall of the fixing groove 11 during the disassembly and assembly process, thereby protecting the base fixing plate 1 from damage and extending its service life.

[0072] In this embodiment, an air passage is also provided in the base fixing plate 1. The air passage is connected to an external air pump through a connector. At the end of the air passage, there are airway branches that are connected to multiple spherical airbags respectively.

[0073] This air passage design makes the entire fixed structure's air supply system more efficient and convenient. The air passage is built into the integrated base fixing plate 1, resulting in a compact structure and reasonable layout, effectively saving space. The connector facilitates connection to an external air pump, enabling quick on / off switching of the air passage and improving work efficiency. Furthermore, the multiple air channel branches at the end of the air passage provide a stable and independent air source for each spherical airbag 3, ensuring uniform inflation of each airbag 3, achieving stable fixation of the blade body, and improving the reliability and stability of the fixed structure.

[0074] In this embodiment, a pressure sensor and an electromagnetic proportional valve are integrated into the air passage. The pressure sensor is connected to the controller signal to form a closed-loop pressure control system.

[0075] The introduction of this closed-loop pressure control system makes the control of the pressure inside the spherical airbag 3 more precise and intelligent. The pressure sensor can monitor pressure changes within the air passage in real time and feed the pressure signal back to the controller. Based on the feedback signal, the controller precisely adjusts the pressure within the air passage through an electromagnetic proportional valve, thereby achieving precise control of the pressure inside the spherical airbag 3. This closed-loop control method ensures that the spherical airbag 3 remains within a suitable working pressure range during operation, avoiding problems such as insecure blade fixation or damage due to excessively high or low pressure. This improves the fixation accuracy and stability of the blade and also extends the service life of the spherical airbag 3.

[0076] In this embodiment, a pressure sensor is installed inside the spherical airbag 3. The pressure sensor is used to monitor the pressure inside the airbag and transmit the pressure signal to an external control device.

[0077] A pressure sensor is installed inside the spherical airbag 3 to directly and accurately acquire the pressure information inside the airbag. These pressure signals are transmitted to the external control device, providing operators with real-time airbag pressure data, allowing them to understand the airbag's working status promptly. If abnormal pressure occurs inside the airbag, operators can quickly take appropriate measures based on the pressure signal, such as adjusting the air pump's air supply or checking for leaks in the airbag, thereby ensuring stable tool fixation and smooth cutting. This design improves the safety and reliability of the entire fixing structure, providing strong support for the efficient and stable operation of the cutting tool. Example 2

[0078] This embodiment provides a fixing structure for an irregularly shaped cutting tool, including a base fixing plate 1, a detachable cutting tool body 2, and three sets of positioning components. The base fixing plate 1 has a fixing groove 11 in the middle of its bottom surface along the width direction. The detachable cutting tool body 2 is a cemented carbide cutting tool body with a hexagonal cross-section, including six assembly surfaces 21, namely three main assembly surfaces 21a and three auxiliary assembly surfaces 21b. The bottom of the cutting tool body extends to form a cutting edge with the cutting edge facing outward. The three sets of positioning components are rectangularly distributed and are respectively set next to the three main assembly surfaces 21a. Each positioning component includes a spherical airbag 3. The fixed end of the spherical airbag 3 is connected to the side wall of the fixing groove 11, and the free end forms a wave-shaped contact part that matches the curvature of the main assembly surface 21a. When inflated, the spherical airbag 3 expands isotropically, so that the wave-shaped contact part forms a grid-like surface contact with the main assembly surface 21a.

[0079] The detachable blade body is secured by three sets of triangularly distributed spherical airbags, which provide strong protection for the blade body and significantly improve its service life and overall performance.

[0080] In this embodiment, the fixed end of the spherical airbag 3 is embedded in the hemispherical slot 41 of the metal base 4, and the metal base 4 is fixed to the side wall of the fixed slot 11.

[0081] This embedding method makes the connection between the spherical airbag 3 and the metal base 4 more stable and reliable. The design of the hemispherical groove 41 can effectively limit the range of motion of the fixed end of the spherical airbag 3, preventing it from loosening or falling off during operation, thereby ensuring the stability of the entire fixing structure. The metal base 4 is fixed to the side wall of the fixing groove 11, further enhancing the firmness of the connection. This allows the spherical airbag 3 to effectively transfer the force to the base fixing plate 1 when subjected to various forces from the blade, avoiding problems such as inaccurate blade positioning or fixing failure caused by loose connection, and providing a solid foundation for the stable operation of the blade.

[0082] In this embodiment, the side wall of the fixing groove 11 is provided with a concave mounting position 12, and the metal base 4 is installed in the concave mounting position 12.

[0083] The concave mounting position 12 design allows the metal base 4 to better fit against the side wall of the fixing groove 11, increasing the contact area between the metal base 4 and the side wall of the fixing groove 11, thereby improving the stability and reliability of the connection. Simultaneously, the concave mounting position 12 also provides a certain positioning and limiting function for the metal base 4, ensuring that the metal base 4 can be accurately positioned to the predetermined position during installation. This avoids problems such as poor contact between the spherical airbag 3 and the tool body assembly surface 21 caused by installation position deviations, which is beneficial to improving the fixing accuracy and stability of the tool body.

[0084] In this embodiment, an elastic buffer layer 13 is laid at the bottom of the fixing groove 11.

[0085] The elastic buffer layer 13 effectively absorbs and buffers the impact and vibration energy generated by the tool body during cutting, reducing the direct effect of these forces on the base plate 1, thereby protecting the base plate 1 from damage and extending its service life. Furthermore, the elastic buffer layer 13 also provides some vibration and noise reduction, lowering the noise level during cutting and improving the working environment. Simultaneously, the elastic buffer layer 13 can also compensate for the gap between the tool body and the fixing groove 11 to a certain extent, improving the installation accuracy and stability of the tool body and ensuring that the tool body maintains good cutting performance and machining accuracy during cutting.

[0086] In this embodiment, an elastic pad 14 is provided on the inner wall of the fixing groove 11.

[0087] The elastic pad 14 can effectively absorb the direct impact on the fixing groove 11 when the blade accidentally comes into contact with the inner wall of the fixing groove 11 during the disassembly and assembly process, thereby protecting the base fixing plate 1 from damage and extending its service life.

[0088] In this embodiment, an air passage is also provided in the base fixing plate 1. The air passage is connected to an external air pump through a connector. At the end of the air passage, there are airway branches that are connected to multiple spherical airbags respectively.

[0089] This air passage design makes the entire fixed structure's air supply system more efficient and convenient. The air passage is built into the integrated base fixing plate 1, resulting in a compact structure and reasonable layout, effectively saving space. The connector facilitates connection to an external air pump, enabling quick on / off switching of the air passage and improving work efficiency. Furthermore, the multiple air channel branches at the end of the air passage provide a stable and independent air source for each spherical airbag 3, ensuring uniform inflation of each airbag 3, achieving stable fixation of the blade body, and improving the reliability and stability of the fixed structure.

[0090] In this embodiment, a pressure sensor and an electromagnetic proportional valve are integrated into the air passage. The pressure sensor is connected to the controller signal to form a closed-loop pressure control system.

[0091] The introduction of this closed-loop pressure control system makes the control of the pressure inside the spherical airbag 3 more precise and intelligent. The pressure sensor can monitor pressure changes within the air passage in real time and feed the pressure signal back to the controller. Based on the feedback signal, the controller precisely adjusts the pressure within the air passage through an electromagnetic proportional valve, thereby achieving precise control of the pressure inside the spherical airbag 3. This closed-loop control method ensures that the spherical airbag 3 remains within a suitable working pressure range during operation, avoiding problems such as insecure blade fixation or damage due to excessively high or low pressure. This improves the fixation accuracy and stability of the blade and also extends the service life of the spherical airbag 3.

[0092] In this embodiment, a pressure sensor is installed inside the spherical airbag 3. The pressure sensor is used to monitor the pressure inside the airbag and transmit the pressure signal to an external control device.

[0093] A pressure sensor is installed inside the spherical airbag 3 to directly and accurately acquire the pressure information inside the airbag. These pressure signals are transmitted to the external control device, providing operators with real-time airbag pressure data, allowing them to understand the airbag's working status promptly. If abnormal pressure occurs inside the airbag, operators can quickly take appropriate measures based on the pressure signal, such as adjusting the air pump's air supply or checking for leaks in the airbag, thereby ensuring stable tool fixation and smooth cutting. This design improves the safety and reliability of the entire fixing structure, providing strong support for the efficient and stable operation of the cutting tool.

[0094] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing structure of a profile tool, characterized by comprising: The utility model relates to a detachable cutting tool fixing structure, including: A base fixed plate, the bottom middle part of which is provided with a fixed groove along the width direction; A detachable cutting body, which is a hard alloy cutting body with an octagonal structure in cross section, including eight assembly surfaces, four main assembly surfaces and four auxiliary assembly surfaces respectively, and a cutting edge formed at the bottom of the cutting body with the cutting edge extending outward; Four positioning assemblies, each of which is arranged beside the four main assembly surfaces, each positioning assembly including a spherical air bag, the fixed end of which is connected to the side wall of the fixed groove, and the free end of which is formed with a wavy contact part matching the curvature of the main assembly surface, the spherical air bag generating isotropic expansion in the inflated state, so that the wavy contact part forms a grid surface contact with the main assembly surface.

2. The fixing structure of a profile tool according to claim 1, wherein The cross section of the detachable cutting body is a hexagonal structure, including six assembly surfaces, three main assembly surfaces and three auxiliary assembly surfaces respectively, and the positioning assembly is three groups, each of which is arranged beside the three main assembly surfaces.

3. The fixing structure of a profile tool according to claim 1, wherein The fixed end of the spherical air bag is embedded in the hemispherical clamping groove of the metal base, and the metal base is fixed to the side wall of the fixed groove.

4. The fixing structure of a profile tool according to claim 3, wherein The side wall of the fixed groove is provided with a concave mounting position, and the metal base is mounted in the concave mounting position.

5. The fixing structure of a profile tool according to claim 1, wherein The bottom of the fixed groove is paved with an elastic buffer layer.

6. The fixing structure of a profile tool according to claim 1, wherein The inner wall of the fixed groove is provided with an elastic pad.

7. The fixing structure of a profile tool according to claim 1, wherein Further including a gas path channel arranged in the base fixed plate, the gas path channel is communicated with the external air pump through a joint, and the end of the gas path channel is provided with a gas path branch communicated with the plurality of spherical air bags respectively.

8. The fixing structure of a profile tool according to claim 7, wherein The gas path channel is integrated with a pressure sensor and an electromagnetic proportional valve, the pressure sensor is signal connected with the controller to constitute a closed loop pressure control system.

9. The fixing structure of a profile tool according to claim 1, wherein The spherical air bag is provided with a pressure sensor inside, which is used for monitoring the pressure in the air bag and transmitting the pressure signal to the external control device.

10. An intelligent die-cutting apparatus characterized by, The utility model relates to a detachable cutting tool fixing structure, including: A base fixed plate, the bottom middle part of which is provided with a fixed groove along the width direction; A detachable cutting body, which is a hard alloy cutting body with an octagonal structure in cross section, including eight assembly surfaces, four main assembly surfaces and four auxiliary assembly surfaces respectively, and a cutting edge formed at the bottom of the cutting body with the cutting edge extending outward; Four positioning assemblies, each of which is arranged beside the four main assembly surfaces, each positioning assembly including a spherical air bag, the fixed end of which is connected to the side wall of the fixed groove, and the free end of which is formed with a wavy contact part matching the curvature of the main assembly surface, the spherical air bag generating isotropic expansion in the inflated state, so that the wavy contact part forms a grid surface contact with the main assembly surface. The cross section of the detachable cutting body is a hexagonal structure, including six assembly surfaces, three main assembly surfaces and three auxiliary assembly surfaces respectively, and the positioning assembly is three groups, each of which is arranged beside the three main assembly surfaces. The fixed end of the spherical air bag is embedded in the hemispherical clamping groove of the metal base, and the metal base is fixed to the side wall of the fixed groove. The side wall of the fixed groove is provided with a concave mounting position, and the metal base is mounted in the concave mounting position. The bottom of the fixed groove is paved with an elastic buffer layer. The inner wall of the fixed groove is provided with an elastic pad. Further including a gas path channel arranged in the base fixed plate, the gas path channel is communicated with the external air pump through a joint, and the end of the gas path channel is provided with a gas path branch communicated with the plurality of spherical air bags respectively. The gas path channel is integrated with a pressure sensor and an electromagnetic proportional valve, the pressure sensor is signal connected with the controller to constitute a closed loop pressure control system. The spherical air bag is provided with a pressure sensor inside, which is used for monitoring the pressure in the air bag and transmitting the pressure signal to the external control device. The utility model relates to a detachable cutting tool fixing structure, including: A base fixed plate, the bottom middle part of which is provided with a fixed groove along the width direction; A detachable cutting body, which is a hard alloy cutting body with an octagonal structure in cross section, including eight assembly surfaces, four main assembly surfaces and four auxiliary assembly surfaces respectively, and a cutting edge formed at the bottom of the cutting body with the cutting edge extending outward; Four positioning assemblies, each of which is arranged beside the four main assembly surfaces, each positioning assembly including a spherical air bag, the fixed end of which is connected to the side wall of the fixed groove, and the free end of which is formed with a wavy contact part matching the curvature of the main assembly surface, the spherical air bag generating isotropic expansion in the inflated state, so that the wavy contact part forms a grid surface contact with the main assembly surface. The cross section of the detachable cutting body is a hexagonal structure, including six assembly surfaces, three main assembly surfaces and three auxiliary assembly surfaces respectively, and the positioning assembly is three groups, each of which is arranged beside the three main assembly surfaces. The fixed end of the spherical air bag is embedded in the hemispherical clamping groove of the metal base, and the metal base is fixed to the side wall of the fixed groove. The side wall of the fixed groove is provided with a concave mounting position, and the metal base is mounted in the concave mounting position. The bottom of the fixed groove is paved with an elastic buffer layer. The inner wall of the fixed groove is provided with an elastic pad. Further including a gas path channel arranged in the base fixed plate, the gas path channel is communicated with the external air pump through a joint, and the end of the gas path channel is provided with a gas path branch communicated with the plurality of spherical air bags respectively. The gas path channel is integrated with a pressure sensor and an electromagnetic proportional valve, the pressure sensor is signal connected with the controller to constitute a closed loop pressure control system. The spherical air bag is provided with a pressure sensor inside, which is used for monitoring the pressure in the air bag and transmitting the pressure signal to the external control device. The utility model relates to a detachable cutting tool fixing structure, including: A base fixed plate, the bottom middle part of which is provided with a fixed groove along the width direction; A detachable cutting body, which is a hard alloy cutting body with an octagonal structure in cross section, including eight assembly surfaces, four main assembly surfaces and four auxiliary assembly surfaces respectively, and a cutting edge formed at the bottom of the cutting body with the cutting edge extending outward; Four positioning assemblies, each of which is arranged beside the four main assembly surfaces, each positioning assembly including a spherical air bag, the fixed end of which is connected to the side wall of the fixed groove, and the free end of which is formed with a wavy contact part matching the curvature of the main assembly surface, the spherical air bag generating isotropic expansion in the inflated state, so that the wavy contact part forms a grid surface contact with the main assembly surface. The cross section of the detachable cutting body is a hexagonal structure, including six assembly surfaces, three main assembly surfaces and three auxiliary assembly surfaces respectively, and the positioning assembly is three groups, each of which is arranged beside the three main assembly surfaces. The fixed end of the spherical air bag is embedded in the hemispherical clamping groove of the metal base, and the metal base is fixed to the side wall of the fixed groove. The side wall of the fixed groove is provided with a concave mounting position, and the metal base is mounted in the concave mounting position. The bottom of the fixed groove is paved with an elastic buffer layer. The inner wall of the fixed groove is provided with an elastic pad. Further including a gas path channel arranged in the base fixed plate, the gas path channel is communicated with the external air pump through a joint, and the end of the gas path channel is provided with a gas path branch communicated with the plurality of spherical air bags respectively. The gas path channel is integrated with a pressure sensor and an electromagnetic proportional valve, the pressure sensor is signal connected with the controller to constitute a closed loop pressure control system. The spherical air bag is provided with a pressure sensor inside, which is used for monitoring the pressure in the air bag and transmitting the pressure signal to the external control device. The utility model relates to a detachable cutting tool fixing structure, including: A base fixed plate, the bottom middle part of which is provided with a fixed groove along the width direction; A detachable cutting body, which is a hard alloy cutting body with an octagonal structure in cross section, including eight assembly surfaces, four main assembly surfaces and four auxiliary assembly surfaces respectively, and a cutting edge formed at the bottom of the cutting body with the cutting edge extending outward; Four positioning assemblies, each of which is arranged beside the four main assembly surfaces, each positioning assembly including a spherical air bag, the fixed end of which is connected to the side wall of the fixed groove, and the free end of which is formed with a wavy contact part matching the curvature of the main assembly surface, the spherical air bag generating isotropic expansion in the inflated state, so that the wavy contact part forms a grid surface contact with the main assembly surface. The cross section of the detachable cutting body is a hexagonal structure, including six assembly surfaces, three main assembly surfaces and three auxiliary assembly surfaces respectively, and the positioning assembly

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