Cutter fixing module and die cutting system

Abstract

The utility model relates to a cutter fixing module and a die cutting system. The cutter fixing module comprises a base body fixing plate, a detachable cutter body, an axial elastic limiting assembly and a radial elastic clamping assembly. The axial elastic limiting assemblies are symmetrically arranged on the two side walls in the length direction of the fixing groove, and each axial elastic limiting assembly comprises a guide sliding base, a pre-pressing spring and an abutting block; the radial elastic clamping assemblies are symmetrically arranged on the two side walls in the width direction of the fixing groove, and each radial elastic clamping assembly comprises a columnar air bag. The axial elastic limiting assemblies are symmetrically arranged on the two side walls of the fixing groove, each axial elastic limiting assembly comprises a guide sliding base, a pre-pressing spring and an abutting block, and axial limiting is achieved. The radial elastic clamping assemblies are symmetrically arranged on the two side walls of the fixing groove and comprise columnar air bags, the contact parts expand in the radial direction after inflation, and the cutter body main body part is elastically clamped. The structure is convenient to mount and dismount, stable and reliable to fix, high in adaptability, simple and compact, and has elastic buffer protection.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of die cutting processing equipment, specifically, especially relates to a cutting tool fixing module and die cutting system. BACKGROUND

[0002] Traditional long strip cutter fixing structure has many obvious defects:

[0003] Firstly, in the cutter fixing mode, the traditional structure adopts bolt locking. This mode has serious drawbacks in the cutter replacement link. Since the dismounting and mounting process of the bolt is complicated, the time required for single cutter replacement is long, which greatly affects the overall processing efficiency, and forces the production rhythm to slow down.

[0004] Secondly, the traditional structure mostly adopts rigid clamping mode. Although this mode can provide certain clamping force, it has an overlooked problem, that is, it is easy to cause stress concentration of the cutter. In this case, the local stress borne by the cutter is too large, which leads to high cutter damage rate, not only increases the use cost of the cutter, but also frequently interrupts the processing flow, and has negative effects on the continuity and stability of production.

[0005] Thirdly, although the existing air bag clamping device improves the clamping effect to some extent, it still has functional defects. The device lacks effective axial limiting function, which causes the cutter to have an unignorable axial displacement in the processing process. According to actual monitoring, the displacement amount of the cutter reaches 0.05-0.1mm. Although this displacement amount seems small, it can significantly affect the processing precision in the processing scene with extremely high precision requirement, and leads to the difficulty of the product quality to meet the high standard requirement. INVENTION CONTENTS

[0006] Therefore, the utility model provides a cutting tool fixing module, axial elastic limiting assembly is equipped with symmetrically in both sides wall of fixed groove, contains guide sliding seat, pre -press spring and abutment block, realizes axial limiting, radial elastic clamping assembly is equipped with symmetrically in both sides wall of fixed groove, contains cylindrical air bag, after inflation, the contact part expands radially, and the elastic clamping cutter body main part, the structure installation dismounting is convenient, and fixed stable and reliable, and the adaptability is strong, has elastic buffer protection, and the structure is simple and compact.

[0007] The utility model discloses the purpose through the following technical scheme:

[0008] A cutting tool fixing module, comprising a base fixed plate, a detachable cutter body, an axial elastic limiting assembly and a radial elastic clamping assembly, wherein,

[0009] The base fixed plate has a fixed groove in the middle of the bottom surface along the width direction;

[0010] The detachable cutter body has a long strip-shaped structure in cross section, and comprises a main body part extending in the length direction and end assembly faces symmetrically arranged at both ends of the main body part, the detachable cutter body is embedded in the fixed slot, and the bottom of the detachable cutter body extends to form a cutting edge with a blade opening directed to the outside;

[0011] The axial elastic limiting assembly is symmetrically arranged at the two side walls in the length direction of the fixed slot, and each axial elastic limiting assembly comprises:

[0012] The guide sliding seat is connected to the fixed slot,

[0013] The pre-pressing spring has a first end embedded in the spring accommodating cavity of the guide sliding seat,

[0014] The abutting block has a spring seat at the bottom connected to the second end of the pre-pressing spring, and a contact surface formed at the top matched with the end assembly face, and the two sides of the abutting block are provided with guide protrusions slidably matched with the guide rail grooves of the guide sliding seat;

[0015] The radial elastic clamping assembly is arranged at the two side walls in the width direction of the fixed slot, and each radial elastic clamping assembly comprises a cylindrical air bag, the axial direction of the cylindrical air bag is parallel to the width direction of the fixed slot, the fixed end of the cylindrical air bag is connected to the side wall face of the fixed slot, and the free end forms a contact part matched with the assembly face of the detachable cutter body, and the contact part of the cylindrical air bag radially expands in the inflated state to form a contact type elastic clamping of the main body part of the detachable cutter body.

[0016] Convenient installation and dismounting: the design of the detachable cutter body and the cooperation of the axial elastic limiting assembly and the radial elastic clamping assembly enable the cutter body to be quickly and conveniently installed and dismounted. When the cutter body is worn or needs to be replaced, the operator can easily complete the replacement work of the cutter body without using complex tools, greatly saving the time for replacing the cutter, improving the work efficiency, and reducing the production cost.

[0017] Fixed and stable: the axial elastic limiting assembly limits the cutter body in the axial direction, and the radial elastic clamping assembly elastically clamps the cutter body in the radial direction, which jointly act to enable the cutter body to maintain a stable state in the fixed slot, effectively avoiding displacement or shaking of the cutter body in the cutting process due to external force, thereby ensuring the machining precision and machining quality of the cutter and improving the qualified rate of products.

[0018] High adaptability: The cylindrical air bladder in the radial elastic clamping assembly expands radially when inflated, and its contact portion matches the shape of the detachable tool body assembly surface. This design allows the fixing structure to adapt to tool bodies of different sizes and shapes. In actual production, when different specifications of tools are required, only the inflation volume of the cylindrical air bladder needs to be adjusted appropriately to achieve stable clamping of different tool bodies without replacing the entire fixing structure. It has strong versatility and adaptability, meeting the needs of diversified production.

[0019] Elastic buffer protection: The preload spring in the axial elastic limit assembly and the columnar airbag in the radial elastic clamping assembly both have elastic properties. During the use of the tool, when the tool body is subjected to cutting force or other external impact, these elastic components can play a certain buffering role, absorb some impact energy, reduce the direct impact force on the tool body, thereby effectively protecting the tool body and the base plate, extending the service life of the tool and the fixed structure, and reducing the maintenance frequency and maintenance cost of the equipment.

[0020] Simple and compact structure: The entire fixing structure consists of a base fixing plate, a detachable tool body, an axial elastic limiting component, and a radial elastic clamping component. The components are connected and arranged in a reasonable manner, forming a simple and compact whole. This concise structure not only facilitates manufacturing and processing, reducing production costs, but also facilitates daily maintenance and upkeep, reducing equipment failure rates and improving equipment reliability and stability.

[0021] Preferably, the free end of the columnar airbag has an arc-shaped contact portion. When inflated, the columnar airbag undergoes radial expansion deformation, so that the arc-shaped contact portion forms a continuous surface contact clamping with the main body of the detachable blade.

[0022] The arc-shaped contact part can fit more closely with the main body of the tool body, increase the contact area, and make the clamping force distribution more uniform. This effectively avoids damage to the tool body or airbag due to excessive local force, while also improving the stability of clamping, ensuring the accuracy of the tool during the cutting process, extending the service life of the tool and airbag, and improving the reliability and durability of the entire tool fixing structure, thus providing a strong guarantee for efficient and stable cutting.

[0023] Preferably, the two sets of radial elastic clamping components together include three columnar airbags, wherein the first set of radial elastic clamping components is provided with two columnar airbags and the second set of radial elastic clamping components is provided with one columnar airbag; the contact parts of the three columnar airbags and the contact area of ​​the detachable blade body form an isosceles triangle distribution, wherein the contact center of the columnar airbag in the second set of radial elastic clamping components is located at 1 / 2 of the axial length.

[0024] The isosceles triangle distribution ensures a more balanced clamping force on the tool body, effectively counteracting forces from various directions during cutting and enhancing tool stability. Furthermore, placing the contact center of the cylindrical airbag in the second radial elastic clamping assembly at half the axial length, precisely near the tool's critical stress point, further optimizes the clamping effect, ensuring axial balance, reducing tool vibration and offset, and improving machining accuracy. Whether performing fine or rough machining, this design guarantees tool stability and machining quality, enhancing the overall product quality.

[0025] Preferably, each radial elastic clamping assembly includes N columnar airbags, where N is a natural number greater than 1. The 2N columnar airbags are distributed in a centrally symmetrical manner on both sides of the width direction of the detachable blade body; the N columnar airbags in the same group are arranged at intervals along the length direction of the fixing groove.

[0026] First, the centrally symmetrical distribution ensures that the clamping force on the tool body is uniform and symmetrical in the width direction, avoiding tilting or twisting of the tool body due to uneven force, and ensuring the machining accuracy of the tool. Second, the columnar airbags in the same group are arranged at intervals along the length of the fixed groove, so that the clamping force is also evenly distributed in the length direction of the tool body, which can effectively support all parts of the tool body. It is especially suitable for longer tool bodies, preventing the tool body from bending and deforming due to its own weight or cutting force during the cutting process, improving the rigidity and stability of the tool, extending the tool life, and also helping to improve the quality and dimensional accuracy of the machined surface, meeting the requirements of high-precision machining.

[0027] Preferably, the fixing groove has two recesses, which are symmetrically arranged on both sides of the fixing groove along its length, and the guide slide is disposed in the recesses.

[0028] The groove can provide space for the installation or positioning of the guide slide.

[0029] Preferably, an elastic buffer layer is laid at the bottom of the fixing groove.

[0030] The elastic buffer layer effectively absorbs the impact and vibration generated by the cutting tool during the cutting process, reduces rigid collisions between the tool and the base plate, lowers noise, and protects the surfaces of both the tool and the base plate from scratches or damage caused by collisions, thus extending their service life. In addition, the elastic buffer layer can also play a certain compensatory role. When the tool's dimensions change slightly due to wear or machining errors, the elastic buffer layer can adapt to this change, maintain a tight fit between the tool and the fixing groove, ensure the tool's machining accuracy and stability, improve the adaptability and reliability of the entire tool fixing structure, and create favorable conditions for stable and efficient cutting.

[0031] Preferably, the fixed end of the columnar airbag is fixed to the side wall of the fixing groove through an adhesive layer.

[0032] The adhesive layer ensures a tight fit between the fixed end of the cylindrical airbag and the side wall of the fixing groove, providing high connection strength and preventing the cylindrical airbag from loosening or falling off during inflation and use, thus guaranteeing the normal operation of the radial elastic clamping assembly. Simultaneously, the adhesive connection provides excellent sealing, preventing gas leakage at the connection point and ensuring stable inflation pressure of the cylindrical airbag, maintaining a stable clamping force on the tool body. Furthermore, the use of the adhesive layer simplifies the assembly process, eliminating the need for complex mechanical connecting parts, reducing assembly difficulty and cost, improving production efficiency, and also reducing the risk of failure due to loose or damaged mechanical connecting parts. This enhances the reliability and stability of the entire tool fixing structure, contributing to extended equipment lifespan.

[0033] Preferably, it also includes an air passage disposed within the base fixing plate. The air passage is connected to an external air pump via a connector. The end of the air passage is provided with airway branches that are respectively connected to multiple columnar airbags. The air passage integrates a pressure sensor and an electromagnetic proportional valve. The pressure sensor is connected to the controller signal to form a closed-loop pressure control system.

[0034] Through the air passage and air channel branches, the gas supplied by the external air pump can be evenly distributed to each cylindrical air bladder, realizing centralized air supply and control for the cylindrical air bladders. The closed-loop pressure control system can monitor the pressure inside the air bladder in real time and automatically adjust the opening of the electromagnetic proportional valve according to the preset pressure value to ensure that the pressure inside the air bladder is always kept within a suitable range, thereby ensuring stable and reliable clamping force on the tool body. This precise pressure control method can not only improve the machining accuracy and stability of the tool, but also effectively avoid tool damage or machining quality problems caused by excessively high or low air bladder pressure. It realizes intelligent management and control of the tool, improves production efficiency and product quality, reduces manual intervention and equipment maintenance costs, and enhances the automation level and intelligence of the entire tool fixing system, providing strong support for modern, efficient and precision machining.

[0035] Preferably, a pressure sensor is installed inside the cylindrical airbag to monitor the pressure inside the cylindrical airbag and transmit the pressure signal to an external control device.

[0036] The pressure sensor can monitor pressure changes within the airbag in real time and accurately, transmitting the pressure signal promptly to the external control device. This allows operators to monitor the airbag's operational status at any time. If abnormal pressure occurs within the airbag, such as being too high or too low, the control device can react quickly, taking appropriate measures, such as adjusting the air pump's supply or issuing an alarm signal to alert the operator. This prevents serious consequences such as unstable tool clamping, decreased machining accuracy, or even tool damage caused by abnormal airbag pressure. This real-time monitoring and feedback mechanism significantly improves the safety and reliability of the tool fixing structure, ensuring the stability and continuity of the machining process. It also helps improve production efficiency and product quality, reduces equipment failure rates and maintenance costs, and provides strong support for the company's stable production and sustainable development.

[0037] Another implementation of this utility model is a die-cutting system, including the cutter fixing module as described above.

[0038] The advantages of this utility model compared to the prior art are:

[0039] This utility model's cutting tool fixing module uses flexible contact instead of rigid locking, solving the problems of stress concentration and inefficient assembly / disassembly in traditional tool fixing. It improves the uniformity of contact stress distribution by 50%, reducing the risk of cracking, and extends fatigue life by 3 times compared to traditional limit pin structures. It enables rapid assembly / disassembly; the inflation / deflation operation shortens tool change time to within 30 seconds, while traditional bolt fixing requires more than 2 minutes. Vibration reduction and precision are also improved; the airbag absorbs 80% of the cutting vibration energy, and the machined surface roughness Ra≤0.8μm. It has good manufacturing tolerance and compatibility, compensating for ±0.2mm assembly surface errors and reducing machining accuracy requirements. Attached Figure Description

[0040] 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.

[0041] Figure 1 This is a structural diagram of the cutter fixing module in Embodiment 1 of this utility model.

[0042] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0043] Figure 3 This is a structural diagram of the cutter fixing module in Embodiment 2 of this utility model.

[0044] Figure 4This is a structural diagram of the cutter fixing module in Embodiment 3 of this utility model.

[0045] Label Explanation

[0046] Matrix fixing plate (1)

[0047] Fixing groove (11)

[0048] Grooves (12, symmetrically arranged on both sides of the fixed groove along its length)

[0049] Elastic buffer layer (13, laid at the bottom of the fixing groove)

[0050] Detachable blade body (2)

[0051] Main body (20)

[0052] End assembly surface (21)

[0053] Radial elastic clamping assembly (3)

[0054] Columnar air bladder (31)

[0055] Contact portion (311, free end arc-shaped structure)

[0056] Adhesive layer (312, connecting the fixed end to the side wall of the fixing groove)

[0057] Axial elastic limiting component (4)

[0058] Guide slide (41)

[0059] Spring receiving cavity (411)

[0060] Preload spring (42)

[0061] Abutting block (43)

[0062] Spring seat (431) Detailed Implementation

[0063] 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.

[0064] 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.

[0065] 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.

[0066] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0067] The technical solutions in this application will now be described with reference to the accompanying drawings. Example 1

[0068] This embodiment provides a cutter fixing module, including a base fixing plate 1, a detachable cutter body 2, an axial elastic limiting component 4, and a radial elastic clamping component 3; wherein...

[0069] The base fixing plate 1 has a fixing groove 11 formed in the middle of its bottom surface along the width direction;

[0070] The detachable blade body 2 has a long strip-shaped cross-section, including a main body 20 extending along the length direction and end mounting surfaces 21 symmetrically arranged at both ends of the main body 20. The detachable blade body 2 is embedded in the fixing groove 11, and a cutting edge with the cutting edge facing outward extends from the bottom of the detachable blade body 2.

[0071] Axial elastic limiting components 4 are symmetrically arranged on both sides of the fixed groove 11 along its length. Each set of axial elastic limiting components 4 includes:

[0072] Guide slide 41, which is connected to the fixed groove 11,

[0073] The preload spring 42 has its first end embedded in the spring receiving cavity 411 of the guide slide 41.

[0074] The abutment block 43 has a spring seat 431 at its bottom that is connected to the second end of the preload spring 42, and a contact surface at its top that mates with the end mounting surface 21. The abutment block 43 has guide protrusions on both sides that slide in conjunction with the guide rail groove of the guide slide block 41.

[0075] The radial elastic clamping assembly 3 is provided on both sides of the fixing groove 11 in the width direction. Each radial elastic clamping assembly 3 includes a columnar airbag 31. The axial direction of the columnar airbag 31 is parallel to the width direction of the fixing groove 11. The fixed end of the columnar airbag 31 is connected to the side wall of the fixing groove 11, and the free end forms a contact portion 311 that matches the shape of the assembly surface of the detachable blade body 2. When the columnar airbag 31 is inflated, its contact portion 311 expands radially to form a contact elastic clamping of the main body 20 of the detachable blade body 2.

[0076] Easy installation and disassembly: The design of the detachable cutter body 2, along with the cooperation of the axial elastic limiting component 4 and the radial elastic clamping component 3, allows for quick and convenient installation and disassembly of the cutter body. When the cutter body wears out or needs to be replaced, operators can easily complete the replacement without using complicated tools, greatly saving time, improving work efficiency, and reducing production costs.

[0077] Stable and reliable: The axial elastic limiting component 4 limits the tool body in the axial direction, and the radial elastic clamping component 3 clamps the tool body in the radial direction. Together, they ensure that the tool body can maintain a stable state in the fixing groove 11. This effectively prevents the tool body from being displaced or shaking due to external forces during the cutting process, thereby ensuring the machining accuracy and quality of the tool and improving the product qualification rate.

[0078] High adaptability: The cylindrical air bladder 31 in the radial elastic clamping assembly 3 can expand radially when inflated, and its contact part 311 matches the shape of the assembly surface of the detachable tool body 2. This design allows the fixing structure to adapt to tool bodies of different sizes and shapes. In actual production, when different specifications of tools are required, only the inflation amount of the cylindrical air bladder 31 needs to be adjusted appropriately to achieve stable clamping of different tool bodies without replacing the entire fixing structure. It has strong versatility and adaptability, meeting the needs of diversified production.

[0079] Elastic buffer protection: The preload spring 42 in the axial elastic limiting component 4 and the columnar airbag 31 in the radial elastic clamping component 3 both have elastic characteristics. During the use of the tool, when the tool body is subjected to cutting force or other external force impact, these elastic components can play a certain buffering role, absorb part of the impact energy, reduce the direct impact force on the tool body, thereby effectively protecting the tool body and the base fixing plate 1, extending the service life of the tool and the fixing structure, and reducing the maintenance frequency and maintenance cost of the equipment.

[0080] Simple and compact structure: The entire fixing structure consists of a base fixing plate 1, a detachable cutter body 2, an axial elastic limiting component 4, and a radial elastic clamping component 3. The components are connected and arranged in a reasonable manner to form a simple and compact whole. This simple structure not only facilitates manufacturing and processing, reducing production costs, but also facilitates daily maintenance and upkeep, reducing equipment failure rates and improving equipment reliability and stability.

[0081] In this embodiment, the free end of the columnar airbag 31 is formed with an arc-shaped contact portion 311. When inflated, the columnar airbag 31 undergoes radial expansion deformation, so that the arc-shaped contact portion 311 and the main body 20 of the detachable blade body 2 form a continuous surface contact clamping.

[0082] The arc-shaped contact part 311 can fit more closely with the main body of the tool body 20, increasing the contact area and making the clamping force distribution more uniform. This effectively avoids damage to the tool body or airbag due to excessive local force, while also improving the stability of clamping, ensuring the accuracy of the tool during the cutting process, extending the service life of the tool and airbag, and improving the reliability and durability of the entire tool fixing structure, thus providing a strong guarantee for efficient and stable cutting.

[0083] In this embodiment, the two sets of radial elastic clamping components 3 together include three columnar airbags 31. The first set of radial elastic clamping components 3 is provided with two columnar airbags 31, and the second set of radial elastic clamping components 3 is provided with one columnar airbag 31. The contact portions 311 of the three columnar airbags 31 and the contact areas of the detachable blade body 2 form an isosceles triangle distribution. The contact center of the columnar airbag in the second set of radial elastic clamping components is located at 1 / 2 of the axial length.

[0084] The isosceles triangle distribution ensures a more balanced clamping force on the tool body, effectively counteracting forces from various directions during cutting and enhancing tool stability. Furthermore, placing the contact center of the cylindrical airbag in the second radial elastic clamping assembly at half the axial length, precisely near the tool's critical stress point, further optimizes the clamping effect, ensuring axial balance, reducing tool vibration and offset, and improving machining accuracy. Whether performing fine or rough machining, this design guarantees tool stability and machining quality, enhancing the overall product quality.

[0085] In this embodiment, the fixing groove 11 is provided with two grooves 12, which are symmetrically arranged on both sides of the fixing groove 11 along its length, and the guide slide is disposed in the groove.

[0086] The groove can provide space for the installation or positioning of the guide slide.

[0087] In this embodiment, an elastic buffer layer 13 is laid at the bottom of the fixing groove 11.

[0088] The elastic buffer layer 13 can effectively absorb the impact force and vibration generated by the tool during the cutting process, reduce the rigid collision between the tool and the base plate 1, reduce noise, and protect the surfaces of the tool and the base plate 1 to avoid scratches or damage caused by collisions, thus extending their service life. In addition, the elastic buffer layer 13 can also play a certain compensatory role. When the tool's dimensions change slightly due to wear or machining errors, the elastic buffer layer 13 can adapt to this change, maintain a tight fit between the tool and the fixing groove 11, ensure the tool's machining accuracy and stability, improve the adaptability and reliability of the entire tool fixing structure, and create favorable conditions for stable and efficient cutting.

[0089] In this embodiment, the fixed end of the columnar airbag 31 is fixed to the side wall of the fixing groove 11 by the adhesive layer 312.

[0090] The adhesive layer 312 enables a tight fit between the fixed end of the columnar airbag 31 and the side wall of the fixing groove 11, resulting in high connection strength. This ensures that the columnar airbag 31 will not loosen or fall off during inflation and use, guaranteeing the normal operation of the radial elastic clamping assembly 3. Simultaneously, the adhesive connection provides excellent sealing, preventing gas leakage from the connection point and ensuring stable inflation pressure of the columnar airbag 31, maintaining a stable clamping force on the tool body. Furthermore, the use of the adhesive layer 312 simplifies the assembly process, eliminating the need for complex mechanical connecting parts, reducing assembly difficulty and cost, and improving production efficiency. It also reduces the risk of failure due to loosening or damage of mechanical connecting parts, enhancing the reliability and stability of the entire tool fixing structure and extending the service life of the equipment.

[0091] 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. The end of the air passage is provided with airway branches that are respectively connected to multiple columnar airbags 31. A pressure sensor and an electromagnetic proportional valve are integrated on the air passage. The pressure sensor is connected to the controller signal to form a closed-loop pressure control system.

[0092] Through the air passage and air channel branches, the gas supplied by the external air pump can be evenly distributed to each columnar air bladder 31, realizing centralized air supply and control for the columnar air bladder 31. The closed-loop pressure control system can monitor the pressure inside the air bladder in real time and automatically adjust the opening of the electromagnetic proportional valve according to the preset pressure value to ensure that the pressure inside the air bladder is always kept within a suitable range, thereby ensuring stable and reliable clamping force on the tool body. This precise pressure control method can not only improve the machining accuracy and stability of the tool, but also effectively avoid tool damage or machining quality problems caused by excessively high or low air bladder pressure. It realizes intelligent management and control of the tool, improves production efficiency and product quality, reduces manual intervention and equipment maintenance costs, and enhances the automation level and intelligence of the entire tool fixing system, providing strong support for modern, efficient and precise machining.

[0093] In this embodiment, a pressure sensor is provided inside the columnar airbag 31. The pressure sensor is used to monitor the pressure inside the columnar airbag 31 and transmit the pressure signal to an external control device.

[0094] The pressure sensor can monitor pressure changes within the airbag in real time and accurately, transmitting the pressure signal promptly to the external control device. This allows operators to monitor the airbag's operational status at any time. If abnormal pressure occurs within the airbag, such as being too high or too low, the control device can react quickly, taking appropriate measures, such as adjusting the air pump's supply or issuing an alarm signal to alert the operator. This prevents serious consequences such as unstable tool clamping, decreased machining accuracy, or even tool damage caused by abnormal airbag pressure. This real-time monitoring and feedback mechanism significantly improves the safety and reliability of the tool fixing structure, ensuring the stability and continuity of the machining process. It also helps improve production efficiency and product quality, reduces equipment failure rates and maintenance costs, and provides strong support for the company's stable production and sustainable development. Example 2

[0095] In this embodiment, the only difference lies in the number and positional distribution of the columnar airbags. Each group of radial elastic clamping components 3 includes two columnar airbags 31, and the four columnar airbags 31 are distributed in a centrally symmetrical manner on both sides of the width direction of the detachable blade body 2 main body 20; the two columnar airbags 31 in the same group are arranged at intervals along the length direction of the fixing groove 11.

[0096] First, the centrally symmetrical distribution ensures that the clamping force on the tool body is uniform and symmetrical in the width direction, avoiding tilting or twisting of the tool body due to uneven force, and ensuring the machining accuracy of the tool. Second, the columnar airbags 31 in the same group are arranged at intervals along the length of the fixing groove 11, so that the clamping force is also evenly distributed in the length direction of the tool body, which can effectively support all parts of the tool body. It is especially suitable for longer tool bodies, preventing the tool body from bending and deforming due to its own weight or cutting force during the cutting process, improving the rigidity and stability of the tool, extending the tool life, and also helping to improve the quality and dimensional accuracy of the machined surface, meeting the requirements of high-precision machining. Example 3

[0097] In this embodiment, the only difference lies in the number and positional distribution of the columnar airbags. Each group of radial elastic clamping components 3 includes 3 columnar airbags 31, and the 6 columnar airbags 31 are distributed in a centrally symmetrical manner on both sides of the width direction of the detachable blade body 2 main body 20; the 3 columnar airbags 31 in the same group are arranged at intervals along the length direction of the fixing groove 11.

[0098] First, the centrally symmetrical distribution ensures that the clamping force on the tool body is uniform and symmetrical in the width direction, avoiding tilting or twisting of the tool body due to uneven force, and ensuring the machining accuracy of the tool. Second, the columnar airbags 31 in the same group are arranged at intervals along the length of the fixing groove 11, so that the clamping force is also evenly distributed in the length direction of the tool body, which can effectively support all parts of the tool body. It is especially suitable for longer tool bodies, preventing the tool body from bending and deforming due to its own weight or cutting force during the cutting process, improving the rigidity and stability of the tool, extending the tool life, and also helping to improve the quality and dimensional accuracy of the machined surface, meeting the requirements of high-precision machining.

[0099] 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 cutter fixing module, characterized in that, include: The base fixing plate has a fixing groove in the middle of its bottom surface along the width direction; The detachable blade has a long strip-shaped cross-section, including a main body extending along the length direction and end mounting surfaces symmetrically arranged at both ends of the main body. The detachable blade is embedded in the fixing groove, and the bottom of the detachable blade extends to form a cutting edge with the cutting edge facing outward. Axial elastic limiting components are symmetrically arranged on both sides of the fixed groove along its length. Each set of axial elastic limiting components includes: The guide slide is connected to the fixed groove. The preload spring has its first end embedded in the spring receiving cavity of the guide slide. The abutment block has a spring seat at its bottom that is connected to the second end of the preloaded spring, and a contact surface at its top that mates with the end mounting surface. The abutment block has guide protrusions on both sides that slidably engage with the guide rail groove of the guide slide. A radial elastic clamping assembly is provided on both sides of the fixed groove in the width direction. Each radial elastic clamping assembly includes a columnar airbag. The axial direction of the columnar airbag is parallel to the width direction of the fixed groove. The fixed end of the columnar airbag is connected to the side wall of the fixed groove, and the free end forms a contact part that matches the shape of the detachable blade body assembly surface. When the columnar airbag is inflated, its contact part expands radially to form a contact elastic clamping of the detachable blade body body.

2. The cutter fixing module according to claim 1, characterized in that, The free end of the columnar airbag has an arc-shaped contact portion. When inflated, the columnar airbag undergoes radial expansion deformation, causing the arc-shaped contact portion to form a continuous surface contact clamping with the main body of the detachable blade.

3. The cutter fixing module according to claim 1, characterized in that, The two sets of radial elastic clamping components together contain three cylindrical airbags, with the first set of radial elastic clamping components having two cylindrical airbags and the second set of radial elastic clamping components having one cylindrical airbag. The contact portions of the three cylindrical airbags and the contact areas of the detachable blade body form an isosceles triangle distribution, wherein the contact center of the cylindrical airbag in the second set of radial elastic clamping components is located at 1 / 2 of the axial length.

4. The cutter fixing module according to claim 1, characterized in that, Each radial elastic clamping assembly contains N columnar airbags, where N is a natural number greater than 1. The 2N columnar airbags are distributed in a centrally symmetrical manner on both sides of the width direction of the detachable cutter body. The N columnar airbags in the same group are arranged at intervals along the length direction of the fixing groove.

5. The cutter fixing module according to claim 2, characterized in that, The fixing groove has two recesses, which are symmetrically arranged on both sides of the fixing groove along its length, and the guide slide is arranged in the recesses.

6. The cutter fixing module according to claim 1, characterized in that, An elastic buffer layer is laid at the bottom of the fixing groove.

7. The cutter fixing module according to claim 1, characterized in that, The fixed end of the columnar airbag is fixed to the side wall of the fixing groove through an adhesive layer.

8. The cutter fixing module according to claim 1, characterized in that, It also includes an air passage set in the base fixing plate. The air passage is connected to an external air pump through a connector. The end of the air passage is provided with airway branches that are connected to multiple columnar airbags respectively. The air passage integrates a pressure sensor and an electromagnetic proportional valve. The pressure sensor is connected to the controller signal to form a closed-loop pressure control system.

9. The cutter fixing module according to claim 1, characterized in that, The cylindrical airbag is equipped with a pressure sensor inside, which is used to monitor the pressure inside the cylindrical airbag and transmit the pressure signal to an external control device.

10. A die-cutting system, characterized in that, Includes the cutter fixing module as described in any one of claims 1-9.

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