Drum-type tool magazine and engraving and milling machine

Abstract

The utility model relates to a drum-type tool magazine and an engraving and milling machine. The drum type tool magazine comprises a tool magazine body, a tool handle fixing mechanism, a first driving mechanism and a second driving mechanism, a drum cutter head assembly is rotationally connected to the tool magazine body along a preset axis, and a plurality of tool positions are arranged on the drum cutter head assembly and used for loading tool handles; the cutter handle fixing mechanism is arranged at the cutter position and used for fixing the cutter handle loaded at the cutter position; the first driving mechanism is in driving connection with the tool magazine body and drives the tool magazine body to move in the first direction; the preset axis intersects with the first direction; the second driving mechanism is in driving connection with the roller cutter head assembly and drives the roller cutter head assembly to rotate along the preset axis. According to the drum type tool magazine, by increasing the number of the tool bits, the capacity is increased, by means of cooperation of the dual-drive mechanism, the tools can be rapidly positioned and exchanged, the tool changing time is shortened, the machining efficiency is improved, and the tool changing requirement of complex parts is met.

Description

Technical Field

[0001] This application relates to the field of CNC machining equipment technology, and in particular to a drum-type tool magazine and a precision engraving machine. Background Technology

[0002] Multi-head CNC engraving machines, as high-precision and high-efficiency CNC machining equipment, can perform multiple machining tasks simultaneously or continuously process the same workpiece through multiple processes thanks to their multiple independently moving spindle heads. This greatly improves production efficiency and is widely used in the processing of complex parts. However, CNC engraving machines require a wide variety of cutting tools when machining complex parts, often necessitating multiple tool changes for the processing of a single product.

[0003] In related technologies, multi-head engraving machines are usually equipped with tool magazines, but the tool magazine capacity of traditional tools is limited and cannot fully meet the processing needs of complex parts requiring multiple tool changes, thus affecting processing efficiency. Utility Model Content

[0004] Based on this, a drum-type tool magazine and a precision engraving machine are provided to solve the problem that the tool magazine capacity of multi-head precision engraving machines in related technologies is limited and cannot meet the needs of multiple tool changes for complex parts.

[0005] An embodiment of the first aspect of this application provides a drum-type tool magazine, comprising:

[0006] The tool magazine body has a roller cutter disc assembly rotatably connected to it along a preset axis. The roller cutter disc assembly is provided with several tool positions for loading tool holders.

[0007] A tool holder fixing mechanism is provided at the tool position and is used to fix the tool holder loaded at the tool position;

[0008] A first driving mechanism is connected to the tool magazine body and drives the tool magazine body to move along a first direction; the preset axis intersects the first direction;

[0009] The second drive mechanism is connected to the roller cutter head assembly and drives the roller cutter head assembly to rotate along the preset axis.

[0010] In one embodiment, a tool holder fixing hole is provided at the tool position for inserting the tool holder, and the tool holder fixing mechanism includes:

[0011] The fasteners are provided in at least two forms, and the at least two fasteners are used to abut against the outer walls on both sides of the knife handle that are inserted into the knife handle fixing hole.

[0012] A fixed driving component is provided, which is driven to connect with the fixed component and drive the fixed component to abut against the outer walls on both sides of the tool holder.

[0013] In one embodiment, the fixing member includes a fixing bead, and the outer wall of the knife handle is provided with a fixing groove for the fixing bead to be inserted;

[0014] The fixed drive component includes an elastic element, one end of which is connected to the roller cutter assembly and the other end of which is connected to the fixed bead. The elastic element provides a driving force for the fixed bead to embed into the fixed groove.

[0015] In one embodiment, the roller cutter assembly is provided with a receiving groove, the receiving groove is covered by a pressure plate, the pressure plate and the receiving groove enclose a receiving cavity, and the elastic element is disposed within the receiving cavity.

[0016] In one embodiment, the outer wall of the handle is provided with a protrusion, and the fixing groove is formed in the protrusion.

[0017] In one embodiment, the second drive mechanism includes:

[0018] Drive motor; and

[0019] A transmission unit drives the drive motor and the drum cutter assembly to rotate.

[0020] In one embodiment, the drum cutter assembly includes:

[0021] A rotary cutter disc, wherein a plurality of rotary cutter discs are arranged along the preset axis; each rotary cutter disc is provided with a plurality of cutter positions;

[0022] A cutter head connector is used to connect adjacent roller cutter heads.

[0023] In one embodiment, the circumferential outer wall of the drum cutter disc is provided with a plurality of cutter position planes, the cutter position planes extending along the preset axis direction, and the cutter position planes are provided with a plurality of cutter positions.

[0024] An embodiment of the second aspect of this application provides a precision engraving machine, including the drum-type tool magazine described in any of the above embodiments.

[0025] In one embodiment, the engraving machine further includes a worktable, the worktable being provided with a worktable driving mechanism and a worktable sliding mechanism, the worktable driving mechanism driving the worktable to move along a first direction on the worktable sliding mechanism;

[0026] The tool magazine body is connected to the worktable sliding mechanism, and the first driving mechanism drives the tool magazine body to move along the first direction on the worktable sliding mechanism.

[0027] According to the embodiments of the present application, the drum-type tool magazine and engraving machine, since the drum cutter head rotates along a preset axis, can increase its capacity by increasing the number of circumferential or axial tool positions. The coordinated movement of the first and second drive mechanisms enables rapid tool positioning and exchange. Before tool changing, the position of the tool holder to be replaced on the drum cutter head assembly is determined. Then, the first drive mechanism moves the tool magazine body to the appropriate position, and the second drive mechanism rotates the drum cutter head assembly to accurately deliver the target tool holder to the tool changing position, reducing tool changing time. By implementing the above settings, the tool magazine capacity is increased, processing efficiency is improved, and the need for multiple tool changes for complex parts is met. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a drum-type tool magazine and a precision engraving machine according to an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the structure of a drum-type tool magazine according to an embodiment of this application.

[0030] Figure 3 This is a cross-sectional view showing the tool holder fixing mechanism in a drum-type tool magazine according to an embodiment of this application.

[0031] Figure 4 This is a cross-sectional view of a drum-type tool magazine according to an embodiment of this application.

[0032] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0033] Figure 6 This is a schematic diagram of the structure of the drum cutter head in a drum-type tool magazine according to an embodiment of this application.

[0034] Figure 7 This is a side view of a drum cutter head in a drum-type tool magazine according to an embodiment of this application.

[0035] Figure 8 This is a schematic diagram of the structure of a drum-type tool magazine and a precision engraving machine in the tool return state according to an embodiment of this application.

[0036] Figure 9 This is a schematic diagram of the structure of a drum-type tool magazine and the tool-retrieving state of a precision engraving machine according to an embodiment of this application.

[0037] Figure label:

[0038] 10000, CNC engraving machine;

[0039] 1000, Drum-type tool magazine;

[0040] 100. Tool magazine body; 101. Tool magazine base plate; 102. Tool magazine side plate; 103. Tail end rotating shaft; 104. Belt rotating shaft; 105. Bearing; 110. Drum cutter head assembly; 111. Drum cutter head; 1111. Connecting protrusion; 1112. Tool position plane; 112. Cutter head connector; 1121. Connecting groove;

[0041] 120. Tool position; 121. Tool holder fixing hole;

[0042] 130. Tool holder; 131. Fixing groove; 132. Protrusion;

[0043] 140. Receiving tank;

[0044] 150. Pressure plate;

[0045] 200. Tool holder fixing mechanism; 210. Fixing ball; 220. Elastic element;

[0046] 300. First drive mechanism;

[0047] 400. Second drive mechanism; 410. Drive motor; 420. Transmission unit; 421. First pulley; 422. Second pulley; 423. Belt;

[0048] 2000, Spindle head;

[0049] 3000, Worktable; 3100, Worktable drive mechanism; 3200, Worktable sliding mechanism; 3210, Y-axis slide rail; 3220, Y-axis slider;

[0050] 4000, Bed frame. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0057] See Figure 1 , Figure 2 and Figure 3 At least one embodiment of this application provides a roller-type tool magazine 1000, which includes a tool magazine body 100, a tool holder fixing mechanism 200, a first drive mechanism 300, and a second drive mechanism 400. A roller tool disc assembly 110 is rotatably connected to the tool magazine body 100 along a preset axis. The roller tool disc assembly 110 is provided with a plurality of tool positions 120 for loading tool holders 130. The tool holder fixing mechanism 200 is disposed at the tool positions 120 for fixing the tool holders 130 loaded at the tool positions 120. The first drive mechanism 300 is drivenly connected to the tool magazine body 100 and drives the tool magazine body 100 to move along a first direction. The preset axis intersects with the first direction. The second drive mechanism 400 is drivenly connected to the roller tool disc assembly 110 and drives the roller tool disc assembly 110 to rotate along the preset axis. Wherein, the preset axis is the X direction in the figure, the first direction is the Y direction in the figure, and the Y direction is perpendicular to the X direction.

[0058] According to the embodiments of this application, the drum-type tool magazine 1000, since the drum cutter head 111 rotates along a preset axis, can increase its capacity by increasing the number of tool positions 120 in the circumferential or axial direction. By reducing the distance between adjacent tool positions 120 in the circumferential direction, or by increasing the number of layers of the cutter head in the axial direction, the number of tool positions 120 on each cutter head increases, thereby increasing the tool storage capacity of the entire tool magazine. The coordinated movement of the first drive mechanism 300 and the second drive mechanism 400 enables rapid tool positioning and exchange. Before tool change, the position of the tool holder 130 to be replaced on the drum cutter head assembly 110 is determined. Then, the first drive mechanism 300 moves the tool magazine body 100 to a suitable position, and the second drive mechanism 400 rotates the drum cutter head assembly 110 to accurately deliver the target tool holder 130 to the tool changing position 120, reducing tool changing time. By implementing the above settings, the tool magazine capacity is increased, machining efficiency is improved, and the need for multiple tool changes for complex parts is met.

[0059] See Figure 2In some embodiments, the tool magazine body 100 further includes a tool magazine base plate 101 and tool magazine side plates 102. Two tool magazine side plates 102 are provided, respectively fixed to both sides of the tool magazine base plate 101. The two ends of the roller cutter head assembly 110 are rotatably connected to the tool magazine side plates 102. Specifically, the two ends of the roller cutter head assembly 110 are respectively fixedly connected to a tail end rotating shaft 103 and a belt rotating shaft 104, which are rotatably connected to the tool magazine side plates 102 via bearings 105. Through the above arrangement, two tool magazine side plates 102 are symmetrically fixed to both sides of the tool magazine base plate 101, providing stable support and protection for the entire tool magazine. The tool magazine base plate 101 serves a load-bearing function, supporting the various components inside the tool magazine. The tool magazine base plate 101 and the tool magazine side plates 102 cooperate to enhance the overall structural strength of the tool magazine.

[0060] See Figure 4 The two ends of the drum cutter head assembly 110 are fixedly connected to the tail end rotating shaft 103 and the belt rotating shaft 104, respectively, enabling the drum cutter head assembly 110 to rotate smoothly. The tail end rotating shaft 103 and the belt rotating shaft 104 are respectively connected to the tool magazine side plate 102 through bearings 105. The bearings 105 reduce the friction generated during rotation, ensuring the stability and flexibility of the drum cutter head assembly 110 during rotation. Under the coordinated action of the first drive mechanism 300 and the second drive mechanism 400, the drum cutter head assembly 110 can accurately rotate to the designated position, realizing rapid tool positioning and exchange, thereby improving the tool changing efficiency of the tool magazine.

[0061] See Figure 3 In some embodiments, a tool holder fixing hole 121 for inserting a tool holder 130 is provided at the tool position 120. The tool holder fixing mechanism 200 includes a fixing member and a fixing drive member. At least two fixing members are provided, and the at least two fixing members are used to abut against the outer walls on both sides of the tool holder 130 inserted into the tool holder fixing hole 121. The fixing drive member is driven to connect with the fixing members and drives the fixing members to abut against the outer walls on both sides of the tool holder 130.

[0062] With the above configuration, a tool holder fixing hole 121 is provided at the tool position 120 for inserting the tool holder 130, providing a precise positioning and installation position for the tool holder 130. When the tool holder 130 is inserted into this hole, it ensures that the tool holder 130 is accurately positioned in the tool magazine, facilitating quick location and retrieval of the tool holder 130 during subsequent tool changing operations. The fixing element in the tool holder fixing mechanism 200 abuts against the outer walls on both sides of the tool holder 130 inserted into the tool holder fixing hole 121. This method applies pressure to the tool holder 130 from both sides, firmly fixing the tool holder 130 to the tool position 120, preventing the tool holder 130 from shifting or falling off due to vibration, rotation, or other factors during tool magazine operation, thus ensuring the stability of the tool holder 130 in the tool magazine.

[0063] The fixed drive component is connected to the fixed component, providing driving force to ensure a tight abutment between the fixed component and the outer walls on both sides of the tool holder 130. This drive connection allows the fixed drive component to control the clamping force of the fixed component on the tool holder 130 according to actual needs, ensuring the tool holder 130 is securely fixed while also facilitating easy release of the tool holder 130 during tool changes. During tool changes, the fixed drive component can control the fixed component to loosen its clamping force on the tool holder 130, allowing the tool holder 130 to be smoothly removed from the tool position 120; conversely, during tool storage, it ensures that the fixed component firmly abuts against the tool holder 130, preventing it from loosening.

[0064] In some embodiments, the fixing member includes a fixing bead 210, and the outer wall of the tool holder 130 is provided with a fixing groove 131 for the fixing bead 210 to be inserted. With the above configuration, the fixing member uses a fixing bead 210, and a matching fixing groove 131 is provided on the outer wall of the tool holder 130. The tool holder 130 is securely fixed through the embedded engagement of the fixing bead 210 and the fixing groove 131. When the fixing bead 210 is inserted into the fixing groove 131, it effectively restricts the movement of the tool holder 130 in all directions, especially when the drum cutter head 111 rotates, preventing radial displacement of the tool holder 130 due to centrifugal force or other factors.

[0065] In some embodiments, the fixing drive includes an elastic element 220, one end of which is connected to the roller cutter head assembly 110, and the other end is connected to the fixing bead 210. The elastic element 220 provides a driving force for the fixing bead 210 to embed into the fixing groove 131. Specifically, the elastic element 220 can be configured as a spring. The fixing drive is the elastic element 220, with one end connected to the roller cutter head assembly 110 and the other end connected to the fixing bead 210. Taking a spring as the elastic element 220 as an example, the spring has the characteristic of elastic deformation, which generates a restoring force. This restoring force provides a driving force for the fixing bead 210 to embed into the fixing groove 131. Under the action of the spring, the fixing bead 210 always maintains the tendency to embed into the fixing groove 131, thereby tightly abutting against the tool holder 130. When the tool holder 130 is inserted into the tool position 120, the spring pushes the fixing bead 210 to embed into the fixing groove 131 of the tool holder 130, realizing automatic clamping of the tool holder 130.

[0066] In some embodiments, the fixing bead 210 can be configured as a steel ball, and the fixing groove 131 can be configured as a V-groove. Under the action of the spring, the steel balls on both sides are pressed inward, pressing against the V-groove of the cutter handle 130, preventing the cutter handle 130 from falling off the drum cutter head 111 during rotation. The pressure plate 150 covers the steel balls and the compression spring, facilitating installation and limiting movement. The fixing bead 210 is configured as a steel ball because steel balls have high hardness and wear resistance, maintaining good performance and being less prone to damage during long-term use. The fixing groove 131 is configured as a V-groove, which allows the steel balls to better fit against it, increasing the contact area and improving the fixing effect. Under the inward pressing force of the spring, the steel balls on both sides tightly press against the V-groove of the cutter handle 130, applying a stable clamping force to the cutter handle 130 from both sides simultaneously. This symmetrical clamping method effectively prevents the cutter handle 130 from falling off during the rotation of the drum cutter head 111.

[0067] In some embodiments, the roller cutter assembly 110 is provided with a receiving groove 140, the receiving groove 140 is covered by a pressure plate 150, the pressure plate 150 and the receiving groove 140 enclose a receiving cavity, and an elastic member 220 is disposed in the receiving cavity.

[0068] Through the above-described configuration, the receiving groove 140 provides installation space for the elastic element 220. The receiving groove 140 allows the elastic element 220 to be integrated inside the roller cutter head assembly 110, preventing the elastic element 220 from being exposed. This saves space and protects the elastic element 220, reducing its exposure to external environmental factors such as dust and cutting fluid, thereby extending the service life of the elastic element 220 and ensuring its operational stability and reliability.

[0069] The pressure plate 150 covers the receiving groove 140, and together with the receiving groove 140, they form a receiving cavity. On the one hand, the pressure plate 150 closes the receiving groove 140, enclosing the elastic element 220 within the receiving cavity, preventing the elastic element 220 from accidentally popping out during the operation of the tool magazine, and ensuring the safety of the entire tool holder fixing mechanism 200. On the other hand, the pressure plate 150 also limits the elastic element 220, keeping it in the correct position during operation and preventing displacement. This ensures that the elastic element 220 can stably provide driving force to the fixing bead 210, ensuring the fixing bead 210's effective fixation of the tool holder 130.

[0070] The receiving cavity provides a relatively stable working environment for the elastic element 220. Placing the elastic element 220 within the receiving cavity makes the entire tool holder fixing mechanism 200 more compact and rational in structure, and the fit between the components is tighter. This design not only improves the overall performance of the roller cutter head assembly 110, but also facilitates the maintenance and repair of the tool holder fixing mechanism 200. When the elastic element 220 malfunctions, the pressure plate 150 can be easily opened for replacement or repair.

[0071] In some embodiments, the outer wall of the handle 130 is provided with a protrusion 132, and a fixing groove 131 is formed in the protrusion 132.

[0072] Through the above-described configuration, the protrusion 132 defines a specific positioning area for the fixing groove 131. When the tool holder 130 is inserted into the tool position 120, the fixing bead 210 can embed into the fixing groove 131 more quickly and accurately, reducing positioning time and improving the accuracy and reliability of the tool holder 130's fixation. During tool magazine operation, this precise fit effectively prevents the tool holder 130 from shaking due to insecure fixation, ensuring the stability of the tool during machining and thus improving machining accuracy. The protrusion 132 itself increases the structural strength of the contact point between the tool holder 130 and the fixing bead 210. Compared to directly creating the fixing groove 131 on a normal outer wall, the protrusion 132 can better withstand the compressive force of the fixing bead 210, preventing the area around the fixing groove 131 from deforming due to stress during long-term use of the tool holder 130. This not only extends the service life of the tool holder 130, but also further ensures the fixation effect of the tool holder 130 in the tool magazine. Even when the tool magazine rotates and vibrates frequently, the tool holder 130 can remain stable, reducing the risk of the tool holder 130 falling off.

[0073] See Figure 2 In some embodiments, the second drive mechanism 400 includes a drive motor 410 and a transmission unit 420. The transmission unit 420 drives the drive motor 410 and the roller cutter assembly 110 to rotate. The drive motor 410 provides driving force for the entire rotational motion. When the drive motor 410 starts running, the power output by the drive motor 410 is transmitted to the transmission unit 420. After receiving power, the transmission unit 420 drives the roller cutter assembly 110 to rotate together. In this process, the electrical energy output by the drive motor 410 is converted into the mechanical energy of the roller cutter assembly 110, thereby driving the roller cutter assembly 110 to rotate around a preset axis.

[0074] During tool changing, by controlling the operation of the drive motor 410, the tool position 120 where the target tool is located can be accurately rotated to the tool changing position 120. When the system determines that a specific tool is needed, the drive motor 410 drives the roller cutter head assembly 110 to rotate, rotating the tool position 120 carrying the tool to the position where it aligns with the spindle head 2000, thus achieving fast and precise tool changing operation, improving the tool changing efficiency of the tool magazine, and meeting the needs of frequent tool changing during machining.

[0075] Through the above configuration, the transmission unit 420 enables the transmission connection, adapting to speed and torque requirements. Specifically, the speed and torque output of the drive motor 410 typically have specific parameters, while the rotation of the drum cutter head assembly 110 in the tool magazine may require different speeds and torques to meet the requirements of efficient tool changing and stable operation. The transmission unit 420 can function as a speed and torque converter. If the drive motor 410 outputs a high speed but low torque, while the tool magazine rotation requires a lower speed and higher torque, the transmission unit 420 can adjust its transmission ratio to convert the power output of the drive motor 410 into a suitable speed and torque for the drum cutter head assembly 110, ensuring smooth and precise operation of the tool magazine.

[0076] The transmission unit 420 connects the drive motor 410 to the drum cutter head assembly 110, facilitating installation and maintenance. It allows for more flexible installation positions of the drive motor 410 and the drum cutter head assembly 110, enabling a more rational layout based on the overall structure of the tool magazine. Furthermore, the presence of the transmission unit 420 makes disassembly and repair of these components easier in case of malfunction, reducing the difficulty and cost of equipment maintenance.

[0077] Specifically, in some embodiments, the transmission unit 420 includes a first pulley 421, a second pulley 422, and a belt 423. The first pulley 421 is fixedly connected to the output shaft of the drive motor 410, the second pulley 422 is fixedly connected to the belt rotating shaft 104, and the belt 423 is wound around the outer walls of the first pulley 421 and the second pulley 422. Through the principle of belt drive, the power of the drive motor 410 is transmitted to the tool magazine drum assembly 110. The fixed connection of the first pulley 421 to the output shaft of the drive motor 410 ensures that the first pulley 421 rotates synchronously when the drive motor 410 is running, thereby receiving the power output by the drive motor 410. The second pulley 422 is fixedly connected to the belt rotating shaft 104, which is in turn connected to the drum assembly 110, so the rotation of the second pulley 422 can drive the belt rotating shaft 104 and the drum assembly 110 to rotate. The belt 423 is wound around the outer wall of the first pulley 421 and the second pulley 422, serving to connect the two pulleys and transmit power. All components work together closely to form a complete power transmission link.

[0078] When the drive motor 410 starts, the output shaft drives the first pulley 421 to rotate. Due to the friction between the belt 423 and the first pulley 421 and the second pulley 422, the rotation of the first pulley 421 is transmitted to the second pulley 422 through the belt 423, thereby driving the second pulley 422 to rotate. The rotation of the second pulley 422 then drives the belt rotating shaft 104, which is fixedly connected to it, to rotate, ultimately realizing the rotation of the drum cutter assembly 110 around a preset axis. Throughout the process, the belt 423 acts as an intermediate transmission medium, relying on friction to achieve smooth power transmission.

[0079] Through the above-described configuration, the belt drive possesses excellent buffering and vibration absorption capabilities, effectively reducing the vibration and impact generated during the start-up and operation of the drive motor 410. This results in smoother rotation of the roller cutter head assembly 110, improving tool positioning accuracy and tool changing stability. The belt drive has a relatively simple structure, low cost, and is convenient to install and maintain. Furthermore, the belt drive features overload protection. When the tool magazine body 100 encounters an overload, the belt 423 will slip on the first pulley 421 and the second pulley 422, preventing damage to the drive motor 410 and other components due to overload, thus protecting the safe operation of the equipment and extending its service life.

[0080] It is understood that in some embodiments, the transmission unit 420 may also be configured as a gear transmission structure. The transmission unit 420 can optimize the power transmission process from the drive motor 410 to the drum cutter head assembly 110. Different types of transmission units 420, such as belt drives and gear drives, have their own characteristics and advantages. Belt drives have the characteristics of smooth transmission and shock absorption, which can reduce the impact during the start-up and operation of the drive motor 410, making the power transmission smoother and reducing the noise and vibration during equipment operation; gear drives have high transmission efficiency and accurate transmission ratio, which can precisely control the speed and direction of the drum cutter head assembly 110, ensuring the accuracy and reliability of tool changing in the tool magazine, and effectively improving the overall working efficiency of the tool magazine.

[0081] In some embodiments, the roller cutter head assembly 110 includes roller cutter heads 111 and cutter head connectors 112. Several roller cutter heads 111 are arranged along a preset axis; each roller cutter head 111 has several tool positions 120. Adjacent roller cutter heads 111 are connected by cutter head connectors 112. Through this arrangement, the cutter head connectors 112 connect adjacent roller cutter heads 111, forming a unified assembly. The roller cutter heads 111 and cutter head connectors 112 are spaced apart along the preset axis. This arrangement ensures that each roller cutter head 111 can independently carry a tool, while the cutter head connectors 112 provide a stable connection between them, ensuring the stability of the entire assembly during rotation. The combination structure of multiple roller cutter heads 111 and cutter head connectors 112 effectively increases the storage capacity of the tool magazine. Compared to a single roller cutter head 111, multiple roller cutter heads 111 can accommodate more tool positions 120 within the same space. Meanwhile, the use of the cutter head connector 112 makes the installation and disassembly of the drum cutter head 111 more convenient, and facilitates the replacement or adjustment of a single drum cutter head 111 when maintaining or upgrading the tool magazine, thereby improving the maintainability and flexibility of the tool magazine.

[0082] Specifically, the roller cutter head assembly 110 includes five roller cutter heads 111 and four cutter head connectors 112, with the roller cutters and cutter head connectors 112 set at preset axial intervals. It is understood that the number of roller cutter heads 111 and cutter head connectors 112 can be adjusted according to actual tool magazine capacity requirements and space design.

[0083] See Figure 4 and Figure 5 In some embodiments, the end face of the drum cutter head 111 is provided with an outwardly protruding connecting protrusion 1111, and the end face of the cutter head connector 112 is provided with a corresponding connecting groove 1121. The connecting protrusion 1111 is connected to the connecting groove 1121, thereby realizing the connection between the drum cutter head 111 and the cutter head connector 112.

[0084] The above-described configuration ensures a stable connection of the roller cutter head assembly 110, guaranteeing the normal operation of the tool magazine. Specifically, the engagement of the connecting protrusion 1111 and the connecting groove 1121 provides precise positioning for the roller cutter head 111 and the cutter head connector 112. During installation, the connecting protrusion 1111 accurately embeds into the connecting groove 1121, maintaining a precise relative position between adjacent roller cutter heads 111, ensuring the accuracy of the tool position 120, and ensuring that the tool can be accurately delivered to the tool changing position 120 during tool changing. Enhancing connection stability, the connection method of the protrusion and groove increases the contact area and connection strength between the roller cutter head 111 and the cutter head connector 112. During tool magazine operation, the roller cutter head assembly 110 continuously rotates, enduring external forces such as centrifugal force and vibration. The tight engagement of the connecting protrusion 1111 and the connecting groove 1121 effectively resists these external forces, preventing relative displacement or loosening between the roller cutter heads 111, ensuring the stability of the entire assembly, and thus improving the reliability and service life of the tool magazine.

[0085] Furthermore, the connecting protrusion 1111, which connects to the connecting groove 1121, facilitates the installation and disassembly of the drum cutter head 111 and the cutter head connector 112. During installation, simply align the connecting protrusion 1111 with the connecting groove 1121 and insert it; the operation is simple and convenient. When maintenance or replacement of parts is required for the tool magazine, the drum cutter head 111 can also be easily separated from the cutter head connector 112, reducing maintenance difficulty and improving maintenance efficiency.

[0086] See Figure 6 and Figure 7 In some embodiments, the circumferential outer wall of the drum cutter head 111 is provided with a plurality of tool position planes 1112, which extend along a preset axis direction, and a plurality of tool positions 120 are provided on the tool position planes 1112. By providing tool position planes 1112 on the circumferential outer wall of the drum cutter head 111, and by having the tool position planes 1112 extend along a preset axis direction, the number of tool positions 120 can be increased, thereby improving the storage capacity of the tool magazine. The tool position planes 1112 extending along the preset axis direction can fully utilize the axial length of the drum cutter head 111, allowing more tool positions 120 to be arranged within a limited space.

[0087] Specifically, the circumferential outer wall of the roller cutter head 111 is provided with eight tool position planes 1112, and each tool position plane 1112 is provided with three tool positions 120 along a preset axis. When the roller cutter head assembly 110 is provided with five rolling cutter heads, the tool magazine body 100 has one hundred and twenty tool positions 120, which can hold twenty four-tool holders 130.

[0088] It is understood that in some embodiments, the roller cutter head assembly 110 can be configured as a single, extended roller cutter head 111 instead of the combined structure of the roller cutter head 111 and the cutter head connector 112. By using a single, extended roller cutter head 111, the number of parts can be reduced, lowering assembly difficulty and complexity. This reduces installation steps and potential assembly errors, improving production and maintenance efficiency. The single, extended roller cutter head 111 offers good overall integrity, preventing instability in the tool magazine operation due to connector failure, resulting in smoother tool magazine rotation and improved tool positioning accuracy and tool changing accuracy.

[0089] See Figure 1 At least one embodiment of this application provides a CNC engraving machine 10000, which includes the drum-type tool magazine 1000 of any of the above embodiments.

[0090] According to the embodiment of this application, the engraving machine 10000 increases the tool magazine capacity and improves processing efficiency by using a drum-type tool magazine 1000, thus adapting to the need for multiple tool changes for complex parts.

[0091] See Figure 1 In some embodiments, the engraving machine 10000 further includes a worktable 3000, which is provided with a worktable driving mechanism 3100 and a worktable sliding mechanism 3200. The worktable driving mechanism 3100 drives the worktable 3000 to move along a first direction on the worktable sliding mechanism 3200. The tool magazine body 100 is connected to the worktable sliding mechanism 3200, and the first driving mechanism 300 drives the tool magazine body 100 to move along the first direction on the worktable sliding mechanism 3200.

[0092] Specifically, the engraving machine 10000 includes a bed 4000, a worktable 3000, and a drum-type tool magazine 1000, all mounted on the bed 4000. The worktable sliding mechanism 3200 is configured as a Y-axis rail, with the Y-axis set along a first direction. The Y-axis rail is mounted on the bed 4000, and multiple Y-axis sliders 3220 are mounted on the Y-axis rail. Some of the Y-axis sliders 3220 are fixedly connected to the worktable 3000, while the other Y-axis sliders 3220 are fixedly connected to the tool magazine base plate 101 of the tool magazine body 100.

[0093] See Figure 1 and Figure 2 In some embodiments, the table drive mechanism 3100 includes a table drive screw. The table drive screw is disposed along a first direction, wherein the first direction is... Figure 1 The Y direction is specified. A worktable drive nut is threaded onto the worktable drive screw, and the worktable 3000 is connected to the worktable drive nut. The worktable 3000 drive motor 410 drives the worktable drive screw to rotate, thereby causing the worktable drive nut and the worktable 3000 to move along the first direction.

[0094] With the above configuration, the worktable 3000 of the engraving machine 10000 is equipped with a worktable drive mechanism 3100 and a worktable sliding mechanism 3200. The worktable drive mechanism 3100 provides power for the movement of the worktable 3000, while the worktable sliding mechanism 3200 provides guidance and support for the movement of the worktable 3000, ensuring its stable movement along the first direction. Simultaneously, the tool magazine body 100 is connected to the worktable sliding mechanism 3200 and driven by the first drive mechanism 300, allowing the tool magazine body 100 to also move along the first direction on the worktable sliding mechanism 3200. The worktable 3000 and the drum-type tool magazine 1000 can move independently.

[0095] During the machining process of a workpiece by the CNC engraving machine 10000, the workpiece often needs to be processed in different positions due to the requirements of the machining process. At this time, the worktable drive mechanism 3100 will be precisely controlled according to the preset program or instructions, pushing the worktable 3000 to move smoothly and accurately along the first direction on the worktable sliding mechanism 3200, accurately delivering the workpiece to the appropriate machining position to meet the machining accuracy requirements. The tool magazine body 100 also needs to be adjusted in position according to the actual needs of tool changing. Because the tool magazine body 100 and the worktable 3000 share the worktable sliding mechanism 3200, when a tool change is required, the first drive mechanism 300 will be activated, driving the tool magazine body 100 to move along the first direction on the worktable sliding mechanism 3200, so that the target tool position 120 of the tool magazine body 100 can accurately align with the spindle head 2000 of the CNC engraving machine 10000, realizing a fast and accurate tool changing operation. This design enables the worktable 3000 and the tool magazine to move in tandem on the same sliding mechanism, which not only ensures the accuracy of the workpiece machining position but also improves the efficiency of tool magazine changing and optimizes the overall machining performance of the CNC engraving machine 10000.

[0096] The working principle of the drum-type tool magazine 1000 and the engraving machine 10000 in this embodiment is as follows:

[0097] 1. Returning old swords to their sheaths

[0098] See Figure 8 After the machine tool issues a tool change command, the drum cutter head 111 begins to rotate under the drive of the drive motor 410, precisely rotating an empty tool position 120 to the top position of the drum cutter head 111. The empty tool position 120, which is also the tool return position 120, is set to R. The tool magazine drive screw starts to rotate, driving the entire tool magazine body 100 to move smoothly to directly below the spindle head 2000. The empty tool position 120 and the spindle head 2000 are on the same axis. The spindle head 2000 begins to descend, initiating the tool release command, and placing the tool holder 130 to be returned to the empty tool position 120 of the cutter head.

[0099] 2. New knife acquisition stage

[0100] See Figure 9 After the spindle head 2000 completes the tool return operation, it rises to a safe position. Then, the drive motor 410 drives the drum cutter head 111 to rotate again, rotating the tool holder 130, which is set to the next tool pick-up position 120G, directly above the cutter head. At this time, the spindle head 2000 descends again and initiates the tool pull-out command, removing the tool holder 130 from the drum cutter head 111.

[0101] 3. Recovery and Processing Stage

[0102] After completing the tool change, the tool magazine body 100 will automatically retract to a safe position to avoid interfering with other components during subsequent machining. Meanwhile, the spindle head 2000 will continue executing the previously planned machining tasks, ensuring the continuity and efficiency of the machining process.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A drum magazine, characterized in that, include: The tool magazine body has a roller cutter disc assembly rotatably connected to it along a preset axis. The roller cutter disc assembly is provided with several tool positions for loading tool holders. A tool holder fixing mechanism is provided at the tool position and is used to fix the tool holder loaded at the tool position; A first driving mechanism is connected to the tool magazine body and drives the tool magazine body to move along a first direction; the preset axis intersects the first direction; The second drive mechanism is connected to the roller cutter head assembly and drives the roller cutter head assembly to rotate along the preset axis.

2. The drum magazine according to claim 1, characterized in that The tool position is provided with a tool holder fixing hole for inserting the tool holder, and the tool holder fixing mechanism includes: The fasteners are provided in at least two forms, and the at least two fasteners are used to abut against the outer walls on both sides of the knife handle that are inserted into the knife handle fixing hole. A fixed driving component is provided, which is driven to connect with the fixed component and drive the fixed component to abut against the outer walls on both sides of the tool holder.

3. The drum knife store according to claim 2, characterized in that The fixing component includes a fixing bead, and the outer wall of the knife handle is provided with a fixing groove for the fixing bead to be inserted; The fixed drive component includes an elastic element, one end of which is connected to the roller cutter assembly and the other end of which is connected to the fixed bead. The elastic element provides a driving force for the fixed bead to embed into the fixed groove.

4. The drum knife store according to claim 3, characterized in that The roller cutter assembly is provided with a receiving groove, the receiving groove is covered by a pressure plate, the pressure plate and the receiving groove enclose a receiving cavity, and the elastic element is disposed in the receiving cavity.

5. The drum knife store according to claim 3, characterized in that The outer wall of the handle is provided with a protrusion, and the fixing groove is formed in the protrusion.

6. The drum knife store according to claim 1, characterized in that The second drive mechanism includes: Drive motor; and A transmission unit drives the drive motor and the drum cutter assembly to rotate.

7. The drum knife store according to claim 1, characterized in that The drum cutter assembly includes: A rotary cutter disc, wherein a plurality of rotary cutter discs are arranged along the preset axis; each rotary cutter disc is provided with a plurality of cutter positions; A cutter head connector is used to connect adjacent roller cutter heads.

8. The drum magazine of claim 7, wherein, The outer circumferential wall of the drum cutter disc is provided with a plurality of tool position planes, the tool position planes extend along the preset axis direction, and a plurality of tool positions are provided on the tool position planes.

9. A fine carving machine characterized by, Includes the drum-type tool magazine as described in any one of claims 1-8.

10. The fine engraver of claim 9, wherein, The engraving machine also includes a worktable, which is provided with a worktable driving mechanism and a worktable sliding mechanism. The worktable driving mechanism drives the worktable to move along a first direction on the worktable sliding mechanism. The tool magazine body is connected to the worktable sliding mechanism, and the first driving mechanism drives the tool magazine body to move along the first direction on the worktable sliding mechanism.

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