Tool magazine for false tooth carving machine and false tooth carving machine

Abstract

The utility model discloses a tool magazine for a false tooth carving machine and the false tooth carving machine, the tool magazine comprises a semi-flexible tool apron made of semi-flexible materials and a tool apron cover plate made of rigid materials, the tool apron is provided with a plurality of containing hole strips, and an isolation gap is arranged between every two adjacent containing hole strips; a containing groove matched with the containing hole strip is formed in the cover plate, and the cover plate is embedded into the isolation gap through the isolation strip. Through the semi-flexible material, the tool apron has the flexibility of buffering external force under the daily mechanical load, meanwhile, the structural strength is kept, and the elasticity and the function after long-time use are ensured; the cover plate made of rigid materials enhances the overall rigidity through the embedded design, and the tool apron is prevented from shifting or loosening in the tool fixing process; the semi-flexible tool apron provides elasticity through self deformation, no extra deformation space is needed, elasticity loss caused by dust and chipping accumulation is effectively prevented, and the spindle is prevented from being damaged. Therefore, the tool magazine solves the problems that in the prior art, a tool magazine is short in service life, and the spindle is prone to damage.

Description

Technical Field

[0001] The utility model relates to the technical field of denture processing, in particular to a tool magazine for a denture carving machine and the denture carving machine. Background Art

[0002] The tool magazine of a denture engraving machine is a device used to store and manage a variety of cutting tools. It is designed to automatically change tools during the engraving process to meet the processing requirements of different steps. The tools within the magazine are typically arranged in a preset order and accessed and placed by a robotic arm or other automated system, ensuring that the engraving machine can quickly switch to the required tool without interrupting work. The magazine's capacity and tool types will affect the engraving machine's processing capabilities and precision. Therefore, tool magazine design generally considers tool compatibility, optimized storage space, and efficient tool changes.

[0003] Denture engraving machines typically operate in a precision machining environment, demanding high accuracy and stability. These workplaces require strict control of vibration and noise to ensure accurate engraving, while also demanding excellent fatigue resistance to withstand extended periods of continuous operation. Due to the complexity of denture engraving and the diverse materials used, the workplace also requires efficient cooling and dust removal systems to prevent overheating and dust accumulation from impacting the machining process. Furthermore, the operating environment should be kept clean and free from moisture and temperature fluctuations to ensure the stability and durability of both the materials and the equipment.

[0004] The utility model patent with authorization announcement number CN217660233U discloses a rotary tool magazine for a denture carving and milling machine, such as Figure 1 As shown, the tool magazine mechanism includes a tool 9, a pressure cover 10, and a guide sleeve 11. The pressure cover 10 and the guide sleeve 11 are arranged outside the tool 9, with the pressure cover 10 located outside the guide sleeve 11. The tool 9 passes through the central holes of the pressure cover 10 and the guide sleeve 11. The pressure cover 10 is used to fix the tool magazine mechanism 7. The guide sleeve 11 effectively fixes the tool 9 by utilizing the elasticity of the metal sheet. It has the same function as the friction elastic ring 12, but is made of different materials.

[0005] The tool magazine mechanism in this denture engraving and milling machine's rotary tool magazine utilizes the combined elasticity of a metal sheet and a friction ring to secure the tool. However, the metal sheet has a low elastic fatigue strength, while the contact area between the friction ring and the tool is small. This ensures the tool remains stable during rotation. However, while the metal sheet has a certain degree of elasticity, its elastic fatigue strength is relatively low, and it is prone to elastic degradation after long-term use, resulting in a decrease in holding force. Furthermore, the denture machining process easily generates dust (such as when machining zirconia) and debris (such as when machining titanium alloy rods). Once dust or debris is scattered around the metal sheet, the metal sheet loses its elasticity, leaving no buffer between the tool on the spindle and the metal sheet. If the tool is misaligned, the resulting reaction force, once applied to the spindle, can easily damage the spindle. While the friction ring has good friction and elasticity, the metal sheet is still the first component that the tool contacts and serves as the primary tool securement. The friction ring does not mitigate the issues of the metal sheet's low elastic fatigue strength, which results in a shorter tool magazine life, or the spindle damage caused by its loss of elasticity due to blockage.

[0006] Therefore, the prior art still needs to be improved and perfected. Utility Model Content

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a tool magazine and a denture engraving machine for a denture engraving machine, aiming to solve the problem that the existing denture engraving machine tool magazine uses the elasticity of metal sheets and the elasticity of friction elastic rings to fix the cutting tools, but the elastic fatigue strength of the metal sheets is low, resulting in a short service life of the tool magazine, and the metal sheets lose their elasticity after being blocked, causing damage to the spindle.

[0008] The technical solution of the utility model is as follows:

[0009] A tool magazine for a denture engraving machine, comprising:

[0010] A semi-flexible knife holder, made of a semi-flexible material, is provided with a plurality of receiving hole bars, each receiving hole bar is provided with a plurality of first tool receiving holes, and an isolation gap is provided between adjacent receiving hole bars;

[0011] The knife seat cover plate is made of a rigid material and is provided with a receiving groove adapted to the receiving hole bar. Isolation strips are provided between adjacent receiving grooves, and the isolation strips are embedded in the isolation gap.

[0012] The effect of the above scheme is that the selection of semi-flexible materials makes the tool holder flexible to buffer external forces, while maintaining sufficient structural strength to cope with daily mechanical loads, ensuring that the tool holder maintains its elasticity and function during long-term use; and the cover plate of rigid material greatly improves the overall rigidity of the tool holder through the interlocking design, so that the tool will not cause the tool holder to shift or loosen during the fixing process, and can maintain stability after fixing, and avoid tool holder fatigue and failure caused by frequent operation or high-load use; and the elasticity of the semi-flexible tool holder is provided by its own deformation, and does not require additional deformation space, so dust and debris will not cause it to lose elasticity, which can effectively avoid the problem of dust or debris causing damage to the spindle. Therefore, the tool magazine provided by the utility model effectively solves the problem that the existing denture engraving machine tool magazine uses the elasticity of metal sheets and the elasticity of friction elastic rings to fix the tools, but the elastic fatigue strength of the metal sheets is low, resulting in a short tool magazine service life, and the metal sheets lose elasticity after being blocked, causing damage to the spindle.

[0013] In a further preferred embodiment, the first tool receiving hole is a through hole that passes through the semi-flexible tool holder and the tool holder cover.

[0014] The above solution has the following advantages: during the machining process, dust and debris will inevitably be generated and may enter the interior of the first tool receiving hole. However, since the receiving hole is designed as a through hole, the dust and debris will not be trapped in the hole, but can flow out of the hole due to gravity and the permeability of the hole, thereby reducing the interference of dust and debris with the tool fixation and internal components of the tool magazine, and preventing the failure of elastic materials or the blockage of mechanical components due to dust accumulation. Therefore, through the above arrangement, the utility model effectively improves the reliability and durability of the tool magazine during long-term use and reduces maintenance issues caused by dust and debris.

[0015] In a further preferred embodiment, the tool magazine also includes a tool holder pad, the upper end surface of the tool holder pad is affixed to the lower end surface of the semi-flexible tool holder, is made of rigid material, and is provided with a second tool receiving hole, which is coaxially arranged with the first tool receiving hole.

[0016] The effect of the above scheme is that: when there is only a small deviation in the relative position between the tool on the spindle and the first tool receiving hole, after the tool is inserted into the first tool receiving hole on the semi-flexible tool holder, its position has been correctly positioned, and continued sinking will no longer require the elasticity provided by the semi-flexible material to correct the position, and the problem of damaging the tool and the spindle will no longer occur. Therefore, a tool holder pad made of rigid material is fitted under the semi-flexible tool holder to provide effective support for the semi-flexible tool holder, so that its upper part is pressed by the tool holder cover plate and its lower part is supported by the tool pad, while the front, back or left and right are blocked by isolation strips, which effectively reduces the vibration and offset of the tool holder during use, improves the positioning accuracy during tool change and the spindle's clamping stability on the tool, thereby ensuring processing accuracy.

[0017] In a further preferred embodiment, the diameter of the second tool receiving hole is larger than that of the first tool receiving hole.

[0018] The above solution has the following advantages: Due to the thinner diameter of the lower half of the tool, if the tool on the spindle has a significant misalignment with the first tool receiving hole during tool changes, the tool may collide with the second tool receiving hole when it descends. However, by increasing the diameter of the second tool receiving hole, additional space is provided to accommodate the tool's deviation, thereby reducing the risk of the tool colliding with the tool holder backing plate. Therefore, through this arrangement, the present invention ensures that even if a significant misalignment occurs during tool changes, physical contact between the tool and the tool holder backing plate is avoided, further improving the durability and safety of the tool magazine.

[0019] In a further preferred embodiment, the tool magazine further comprises a base, the upper end surface of the base is fitted to the lower end surface of the tool holder pad, the base is made of a rigid material, and the base is connected to the body of the denture engraving machine.

[0020] The effect of the above scheme is that by setting a base made of rigid material under the tool holder pad and firmly connecting it to the body of the denture engraving machine, the stability and impact resistance of the entire tool magazine structure are effectively improved; the rigid material of the base ensures that the tool magazine can provide sufficient support force to prevent deformation or displacement when subjected to external force or vibration. In addition, the fitting design of the base and the tool holder pad forms a stable overall structure. This tight fit can not only enhance the positioning accuracy of the tool in high-precision processing, but also absorb and disperse the vibration and impact generated by the processing process, reducing the negative impact on the tool and the spindle. Therefore, the utility model effectively improves the durability and processing accuracy of the tool magazine through the above-mentioned settings, and ensures the stability of the denture engraving machine under high-intensity working conditions.

[0021] In a further preferred embodiment, the base is provided with a third tool receiving hole, and the third tool receiving hole is arranged directly below the second tool receiving hole and is communicated with the second tool receiving hole and the first tool receiving hole.

[0022] The effect of the above scheme is: by setting a third tool receiving hole on the base and connecting it with the second tool receiving hole and the first tool receiving hole above, a vertical channel is formed that runs through the entire tool magazine structure to ensure that the tool can pass through each layer of receiving holes smoothly during tool changing or processing even if there is a positioning deviation, thereby reducing the friction or collision between the tool and the hole wall, and reducing the risk of damage caused by interference between the tool and the base or pad.

[0023] In a further preferred embodiment, the diameter of the third tool receiving hole is smaller than that of the second tool receiving hole, and larger than that of the first tool receiving hole.

[0024] The effect of this solution is that the three tool-receiving holes form a three-layer structure. The semi-flexible tool-receiving holes on the first layer have the smallest diameter, fully utilizing the positioning function of the semi-flexible material to correct the tool's position. The rigid tool-receiving holes on the second layer have the largest diameter to prevent direct collision between the tool and the surrounding rigid material, thereby protecting the spindle from damage. The rigid tool-receiving holes on the third layer have a central diameter, providing necessary support without excessively restricting tool movement. Through this layered design, the tool can gradually complete position correction during the sinking process, ultimately being appropriately constrained in the third layer, ensuring the accuracy and durability of the tool magazine and preventing errors during tool changes from affecting the stability and life of the entire tool magazine system.

[0025] In a further preferred embodiment, a first deformation gap is reserved between the outer edge of the semi-flexible tool holder and the inner edge of the tool holder cover plate, and the first deformation gap is closed.

[0026] The effect of the above scheme is that the elastic properties of the semi-flexible material enable it to produce slight deformation when subjected to stress, and the reserved deformation gap provides space for such deformation, preventing the material from losing elasticity or deformation and damage due to excessive compression; therefore, by reserving the first deformation gap, the semi-flexible tool holder can deform freely within a certain range when subjected to external force, thereby effectively absorbing and buffering external impact force, avoiding excessive stress between the tool and the tool holder cover plate, and, since the first deformation reserved gap is closed, dust and debris will not enter the first deformation reserved gap, thereby improving the elasticity of the semi-flexible tool holder while avoiding elasticity loss.

[0027] In a further preferred embodiment, the diameter of the first tool receiving hole is larger than the diameter of the corresponding part of the tool to form a second deformation gap.

[0028] The effect of the above scheme is that the deformation gap can form an additional buffer layer between the tool and the hole wall, effectively absorbing the stress caused by slight position deviations, thereby protecting the tool and its surrounding structures; therefore, by forming a second deformation gap between the tool receiving hole and the tool, a certain buffer space can be provided when the tool is inserted, reducing the risk of friction and collision caused by inaccurate tool positioning.

[0029] A denture engraving machine includes the tool magazine for denture engraving machines described above. Since the denture engraving machine includes all the technical features of the tool magazine for denture engraving machines described above, the denture engraving machine also has all the technical effects of the tool magazine for denture engraving machines described above, and no further details are given.

[0030] Compared with the prior art, the tool magazine for a denture engraving machine provided by the present invention includes a semi-flexible tool holder made of a semi-flexible material, the tool holder having a plurality of receiving hole bars, each of which has a plurality of first tool receiving holes, and an isolation gap is provided between adjacent receiving hole bars; in addition, the tool magazine is also equipped with a tool holder cover made of a rigid material, the cover having a receiving groove adapted to the receiving hole bars, and the isolation gap is embedded in the isolation gap through an isolation bar. By selecting a semi-flexible material, the present invention enables the tool holder to have the flexibility to buffer external forces under daily mechanical loads while maintaining sufficient structural strength to ensure elasticity and functionality after long-term use; the cover plate made of rigid material enhances the overall rigidity through a chimeric design, preventing the tool holder from shifting or loosening during the tool fixing process, thereby improving stability and preventing tool holder fatigue and failure caused by frequent operation or high-load use; the semi-flexible tool holder provides elasticity through its own deformation, does not require additional deformation space, effectively prevents elasticity loss caused by dust and debris accumulation, and avoids spindle damage; therefore, the tool magazine solves the problems of short tool magazine service life and easy spindle damage in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the rotary tool magazine of the denture carving and milling machine disclosed in CN217660233U.

[0032] Figure 2 This is an exploded view of the tool magazine used for the denture engraving machine in the preferred embodiment 1 of the present invention.

[0033] Figure 3 This is an exploded view from the first perspective of a tool magazine for a denture engraving machine in a second preferred embodiment of the present invention.

[0034] Figure 4 This is an exploded view from a second perspective of the tool magazine used for the denture engraving machine in the second preferred embodiment of the present invention.

[0035] Figure 5This is the first cross-sectional view of the tool magazine for the denture engraving machine in the second preferred embodiment of the present invention.

[0036] Figure 6 This is a second cross-sectional view of the tool magazine for the denture engraving machine in the second preferred embodiment of the present invention. DETAILED DESCRIPTION

[0037] The utility model provides a tool magazine for a denture engraving machine and a denture engraving machine. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail below with reference to the accompanying drawings and examples.

[0038] The utility model provides a tool magazine for a denture engraving machine, such as Figure 2 、 Figure 3 and Figure 4 As shown, it includes a semi-flexible tool holder 200 and a tool holder cover 100. The semi-flexible tool holder 200 is made of a semi-flexible material and has a plurality of receiving hole bars 210. Each receiving hole bar 210 is provided with a plurality of first tool receiving holes 211, and an isolation gap is provided between adjacent receiving hole bars 210. The tool holder cover 100 is made of a rigid material and has a receiving groove 110 adapted to the receiving hole bars 210. An isolation bar 120 is provided between the receiving grooves 110, and the isolation bar 120 is embedded in the isolation gap. Preferably, a small gap is reserved between the isolation bar 120 and the isolation gap. While limiting the position of the upper half of the semi-flexible tool holder 200 within a certain range, the semi-flexible tool holder 200 can elastically deform itself, providing greater tolerance for tool alignment deviation during tool change. Moreover, even if the small gap is filled with dust or debris, it will not affect the elastic deformation ability of the semi-flexible tool holder 200.

[0039] Semi-flexible materials can be selected from: hard rubber, polyurethane elastomer (PU), thermoplastic elastomer (TPE), silicone rubber and ethylene-vinyl acetate copolymer (EVA), etc., preferably hard rubber, which has better performance: (1) Hard rubber has a higher hardness than ordinary rubber, and can provide better structural support and deformation resistance while maintaining a certain elasticity; (2) Hard rubber can effectively buffer external force impact, which is crucial for the durability and stability of the tool holder during long-term use. It can offset part of the external impact during the tool change process or work, and avoid excessive stress between the tool and the tool holder; (3) Hard rubber has high wear resistance, so that the tool holder can still maintain a long service life during frequent tool changes and is not easily worn or deformed; (4) Hard rubber has a certain rigidity and can provide moderate deformation. When the tool alignment is slightly deviated, the tool holder can be adjusted appropriately to reduce the impact on the spindle and prevent the spindle from being damaged by excessive collision force.

[0040] The rigid materials for making the tool holder cover plate can be selected from: aluminum alloy, stainless steel, glass fiber reinforced plastic (GFRP) and rigid polyvinyl chloride (Rigid PVC), etc., which will be referred to as metals in the following text and will not be described in detail.

[0041] The utility model achieves the following technical effects by setting an isolation gap, adapting the isolation strip thereto, and coordinating the different materials of the knife holder and the cover plate (for example, the knife holder is made of hard rubber and the cover plate is made of metal):

[0042] (1) Enhance the mechanical strength and impact resistance of the tool holder: Hard rubber itself has a certain degree of rigidity, but it is still slightly softer than metal. By dividing the hard rubber into horizontal or vertical strips and embedding a metal cover between these strip structures, the metal cover can provide additional support for the overall structure. When the tool holder is subjected to impact or high load, the interlocking structure between the metal and hard rubber can effectively disperse stress and reduce the possibility of deformation, thereby improving the mechanical strength and impact resistance of the tool holder. The theoretical basis is that: mechanical theory shows that the dispersed structure design can reduce stress concentration in a single direction; and the embedded design can utilize the cushioning properties of hard rubber and the rigidity of metal to form a complementary relationship, thereby enhancing the overall impact resistance of the tool holder.

[0043] (2) Improve the positioning accuracy of the tool: The split design divides the upper half of the hard rubber tool holder into horizontal or vertical strips, allowing the metal cover to be embedded in these gaps; this interlocking structure not only improves the rigidity of the tool holder, but also improves the positioning accuracy of the tool through the fixation of the metal part; the high processing precision of the metal cover can ensure that the tool maintains higher consistency and stability during installation, thereby reducing the risk of tool deviation. The theoretical basis is that metal materials are easier to maintain stability in fixed components due to their high processing precision; the embedded design takes advantage of this advantage of metal materials, allowing the tool to achieve better positioning effect during installation.

[0044] (3) Improve the versatility of the tool holder: The improved tool holder structure can adapt to a wider range of tools and processing conditions. The hard rubber provides the necessary elasticity and cushioning, while the embedded metal cover increases the rigidity and stability of the structure, so that the tool holder can not only adapt to larger impact loads, but also maintain stable tool positioning during high-precision processing, and has strong adaptability.

[0045] In specific implementation, the isolation gap and isolation strip can be set in both horizontal and vertical directions, but preferably they are set in only one direction to provide greater flexibility while ensuring the position accuracy of the semi-flexible tool holder.

[0046] In a preferred embodiment of the present invention, the tool magazine also includes a rotary drive mechanism and a tool magazine cover. Driven by the rotary drive mechanism, the tool magazine cover can be covered on top of the semi-flexible tool holder 200 and the tool holder cover 100 when tool change is not required, so as to reduce or even prevent dust and debris from entering the interior of the tool magazine, thereby ensuring the accuracy of the tool position and the stability of the entire tool changing process.

[0047] Take the following tool structure as an example: The bottom portion comprises a first inverted frustum, from which extends upward a first cylinder, which in turn extends upward a second inverted frustum, which in turn extends upward a second cylinder. The second cylinder has an annular projection disposed on its outer edge near the lower midsection of the second inverted frustum. The first tool receiving hole preferably has a countersunk hole adapted to accommodate the annular projection. The following text will also use this tool structure as an example to explain further preferred embodiments of the present invention. However, it should be understood that this example is merely illustrative of the technical effects of the present invention and is not intended to limit the scope of protection of the present invention.

[0048] In a further preferred embodiment of the present invention, the first tool receiving hole 211 is a through hole that passes through the semi-flexible tool holder 200 and the tool holder cover 100. It is understandable that the semi-flexible tool holder 200 can be connected to the tool holder cover 100 only by long bolts or other means, so that the storage of the tool does not need to rely on other components. In this case, the length of the first tool receiving hole 211 on the semi-flexible tool holder 200 is greater than or equal to the length of the tool to be stored, or slightly less than the length of the tool to be stored. The semi-flexible tool holder 200 can also cooperate with the tool holder cover 100 and other components, such as the tool holder pad and base, which will be described in detail below, to store tools. In this case, the length of the first tool receiving hole 211 does not need to be greater than or equal to the length of the tool to be stored. However, regardless of the structure, setting the first tool receiving hole 211 as a through hole is conducive to the discharge of dust or debris that accidentally falls into the hole, and minimizes the interference of the two with the tool fixation and internal components of the tool magazine.

[0049] Preferably, the tool magazine further includes a tool holder pad 300, such as Figure 5 As shown, the upper end surface of the tool holder pad 300 is fitted to the lower end surface of the semi-flexible tool holder 200, is made of rigid material, and is provided with a second tool receiving hole 311, which is coaxially arranged with the first tool receiving hole 211. The effect of this arrangement is to cooperate with the tool holder cover 100, the isolation strip 120 and the isolation gap 220 provided thereon to limit the position of the semi-flexible tool holder 200 in multiple directions, so as to reduce the vibration and offset of the tool holder, thereby improving the alignment accuracy during tool change, etc., which will not be elaborated. It is easy to understand that the tool holder pad 300 can also be made of composite materials (such as fiber reinforced plastics or composite polymers) to maintain its rigidity and lightness while enhancing its wear resistance and impact resistance.

[0050] Furthermore, the diameter of the second tool-receiving hole 311 is larger than that of the first tool-receiving hole 211. When the tool is replaced, it first enters the first tool-receiving hole 211 of the semi-flexible tool holder 200. During the tool change process, as the tool is gradually inserted into the tool magazine, the tool structure sequentially passes through the first tool-receiving hole 211, the second tool-receiving hole 311, and other components. In the initial stage of tool placement, the bottom-most first inverted cone first enters the first tool-receiving hole 211. Because the diameter of the first tool-receiving hole 211 is smaller than that of the second tool-receiving hole 311, it effectively guides the tool to the correct position and reduces tool swing during initial entry. As the tool continues to sink to the second tool-receiving hole 311, the second inverted cone and the second cylindrical body gradually enter the second tool-receiving hole 311. Due to the larger diameter of the second tool-receiving hole 311, precision loss caused by collision between the tool and the tool holder pad 300 is avoided. Finally, when the annular protrusion is accommodated in the countersunk hole, the tool is fully placed and the entire tool is stably fixed. By setting a larger diameter for the second tool receiving hole 311, it is possible to ensure that the tool avoids any unnecessary collisions before final fixation, reduce alignment deviations, and improve the safety and accuracy of the tool change process. Thus, the first tool receiving hole 211 provides precise initial positioning, while the larger second tool receiving hole 311 effectively prevents collisions caused by spindle deviation, while also reducing direct contact between the tool and rigid components, lowering the risk of damage to the spindle or other tool magazine components caused by collisions. The combination of the two ensures that the tool passes firmly through the second tool receiving hole 311 and is completely fixed in the tool magazine, thus ensuring the efficiency and safety of the tool change process.

[0051] Preferably, the tool magazine further includes a base 400, and the upper end surface of the base 400 of the third tool receiving hole is affixed to the lower end surface of the tool holder pad 300, and is made of a rigid material. The base 400 is connected to the body of the denture engraving machine. It is understandable that the tool holder pad 300 and the body of the denture engraving machine can be connected by a suspension mechanism or a bracket. The suspension design can reduce vibration transmission and improve the accuracy and stability of tool exchange. An integrated design can also be performed, that is, the tool holder pad 300 and the body of the denture engraving machine are designed as an integrated structure to reduce the number of connecting parts, reduce manufacturing costs, and increase the rigidity of the system. The base 400 can also be designed as a modular base 400, allowing tool holder pads 300 of different types or specifications to be flexibly combined with the base 400 to adapt to different tools or processing requirements.

[0052] Preferably, the base 400 is provided with a third tool receiving hole 411, which is located directly below the second tool receiving hole 311 and communicates with the second tool receiving hole 311 and the first tool receiving hole 211. In a specific implementation, the diameter of the third tool receiving hole 411 is preferably smaller than that of the second tool receiving hole 311 and larger than that of the first tool receiving hole 211. Still taking the above-mentioned tool structure as an example, the present invention is described in detail as follows:

[0053] During tool changes, the lower half of the tool's first inverted cone will eventually enter the third tool receiving hole in the base. The precise design of each tool receiving hole in the entire tool magazine structure ensures smooth and accurate tool installation.

[0054] (1) The first tool receiving hole: It is composed of a semi-flexible tool holder and a tool holder cover plate, and has the smallest diameter. Its function is to provide initial guidance and buffering effects when the tool begins to enter. In particular, when the tool has a slight deviation, the elasticity of the semi-flexible material can effectively correct the position of the tool. At the same time, the countersunk hole of the first tool receiving hole is adapted to the circular protrusion of the tool. When the tool is fully placed, the protrusion is embedded in the countersunk hole, ensuring the stability and fixation of the tool in the final position.

[0055] (2) Second tool receiving hole: It is set on the tool holder pad made of rigid material and has a diameter larger than the first tool receiving hole. Due to its high material rigidity, the second tool receiving hole provides stronger positioning and support during the tool change process. The larger aperture design prevents the tool from colliding with the tool holder pad when the first inverted cone body extends downward, ensuring that the tool can smoothly pass through this stage and finally be firmly positioned.

[0056] (3) The third tool receiving hole is provided on the base, and its diameter is between the first and second tool receiving holes. The moderate size of the third tool receiving hole not only prevents excessive friction between the tool and the hole wall during the sinking process, but also ensures that the final position of the tool is stable during the entire tool changing process;

[0057] In general, the three tool-receiving holes each have their own functions, with a clear division of labor for preliminary guidance, collision prevention, and complete removal of dust and debris. They work together to enable the tool to smoothly complete all steps from initial positioning to final fixation during the tool change process. The entire system ensures the accurate placement of the tool, reduces errors and damage that may be caused by tool deviation, and improves the service life and processing accuracy of the tool magazine.

[0058] In a further preferred embodiment of the present invention, Figure 6As shown, a first deformable gap 610 is reserved between the outer edge of the semi-flexible tool holder 200 and the inner edge of the tool holder cover 100. The first deformable gap 610 is enclosed. Preferably, the diameter of the first tool receiving hole 211 is larger than the diameter of the corresponding portion of the tool, forming a second deformable gap 620. The main benefit of the first deformable gap 610 is that it can effectively absorb and buffer externally applied stress, preventing the tool holder from excessive deformation or damage when subjected to external forces. At the same time, because this gap is enclosed, it can prevent external dust, debris, etc. from entering the tool magazine, ensuring the cleanliness of the tool magazine and the safety of the tools. The benefit of the second deformable gap 620 is that it provides a certain degree of freedom for the tool during storage and operation, allowing the tool to be fine-tuned during placement to accommodate possible alignment deviations. This not only improves the alignment accuracy during tool changes, but also reduces the risk of friction or collision between the tool and other parts of the tool magazine, thereby extending the service life of the tool and the tool magazine. When the first deformation gap 610 and the second deformation gap 620 are used in conjunction with each other, the two can work together to ensure that the tool can be stably fixed during storage and operation, and can avoid damage or reduction in accuracy caused by material deformation or misalignment. The first deformation gap 610 buffers the stress of the overall structure, while the second deformation gap 620 provides the tool with the necessary operational flexibility. The two work together to achieve higher reliability and durability of the tool magazine system.

[0059] The present invention also provides a denture engraving machine, which includes the tool magazine for the denture engraving machine as described above. Since the denture engraving machine includes all the technical features of the tool magazine, the denture engraving machine also has all the technical effects of the tool magazine, which will not be described in detail.

[0060] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some embodiments, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description. Similarly, it should be understood that in order to streamline the present invention and help understand one or more of the various aspects of the present invention, in the above description of the exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following intention: that the claimed invention requires more features than the features explicitly recited in each claim. More specifically, as reflected in the claims below, the utility model aspects are less than all the features of the individual embodiments disclosed above. Therefore, the claims following the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present invention.

[0061] Those skilled in the art will appreciate that the modules in the processing equipment in the embodiment can be adaptively changed and set in one or more processing equipment different from the embodiment. The modules or units or components in the embodiment can be combined into one module or unit or component, and in addition they can be divided into multiple sub-modules or sub-units or sub-components. All features disclosed in this specification (including the accompanying claims, abstract and drawings) and all processes or units of any method or processing equipment so disclosed can be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract and drawings) can be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0062] Furthermore, those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of the present invention and to form different embodiments. For example, any of the claimed embodiments may be used in any combination.

[0063] It should be noted that the above embodiments illustrate rather than limit the present invention, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments should not be understood as limiting the order of execution unless otherwise specified.

Claims

1. A tool magazine for a denture engraving machine, characterized in that: include: A semi-flexible knife holder, made of a semi-flexible material, is provided with a plurality of receiving hole bars, each receiving hole bar is provided with a plurality of first tool receiving holes, and an isolation gap is provided between adjacent receiving hole bars; The knife seat cover plate is made of a rigid material and is provided with a receiving groove adapted to the receiving hole bar. Isolation strips are provided between adjacent receiving grooves, and the isolation strips are embedded in the isolation gap.

2. The tool magazine for a denture engraving machine according to claim 1, characterized in that: The first tool receiving hole is a through hole that passes through the semi-flexible tool holder and the tool holder cover.

3. The tool magazine for a denture engraving machine according to claim 2, characterized in that: The tool magazine also includes a tool holder pad, the upper end surface of which is in contact with the lower end surface of the semi-flexible tool holder, is made of rigid material, and is provided with a second tool receiving hole, which is coaxially arranged with the first tool receiving hole.

4. The tool magazine for a denture engraving machine according to claim 3, characterized in that: The diameter of the second tool receiving hole is larger than that of the first tool receiving hole.

5. The tool magazine for a denture engraving machine according to claim 3, characterized in that: The tool magazine also includes a base, the upper end surface of the base is affixed to the lower end surface of the tool holder pad, and is made of rigid material. The base is connected to the body of the denture engraving machine.

6. The tool magazine for a denture engraving machine according to claim 5, characterized in that: The base is provided with a third tool receiving hole, which is arranged directly below the second tool receiving hole and is communicated with the second tool receiving hole and the first tool receiving hole.

7. The tool magazine for a denture engraving machine according to claim 6, characterized in that: The diameter of the third tool receiving hole is smaller than that of the second tool receiving hole and larger than that of the first tool receiving hole.

8. The tool magazine for a denture engraving machine according to any one of claims 1 to 7, characterized in that: A first deformation gap is reserved between the outer edge of the semi-flexible knife seat and the inner edge of the knife seat cover, and the first deformation gap is closed.

9. The tool magazine for a denture engraving machine according to any one of claims 1 to 7, characterized in that: The diameter of the first tool receiving hole is larger than the diameter of the corresponding part of the tool to form a second deformation gap.

10. A denture engraving machine, characterized in that: The invention comprises a tool magazine for a denture engraving machine according to any one of claims 1 to 9.

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