Double-layer straight-line tool magazine and engraving machine

Abstract

This application relates to a double-layer straight-line tool magazine and a precision engraving machine. The double-layer straight-line tool magazine includes a tool magazine body, a first drive mechanism, and a second drive mechanism. It includes an upper tool disc and a lower tool disc stacked vertically. Both the upper and lower tool discs have multiple rows of tool positions arranged in a second direction along a first direction, and the tool positions are used to load tool holders. The first drive mechanism is driven by the tool magazine body, driving the tool magazine body to move along the first direction. The second drive mechanism is driven by the lower tool disc, driving the lower tool disc to move along the first direction. The upper tool disc and the lower tool disc form a double-layer tool disc structure stacked vertically. Both the upper and lower tool discs have multiple rows of tool positions arranged in the second direction along the first direction, shortening the spacing between the tool positions and increasing the spatial density of the tool positions. Through the above configuration, the drive of the upper and lower tool discs can be independently controlled, increasing the tool magazine capacity and adapting to the needs of multiple tool changes for complex parts.

Description

Technical Field

[0001] This application relates to the field of CNC machining equipment technology, and in particular to a double-layer straight-line 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 by equipping multiple independently moving spindle heads, significantly improving production efficiency. In the machining of complex parts, the demand for a wide variety of tools is high, requiring multiple tool changes. Manual tool changes not only affect the machining accuracy and surface finish of the product but also greatly extend the machining time; therefore, a tool magazine is an essential configuration for multi-head CNC engraving machines.

[0003] In related technologies, the tool magazine capacity of multi-head engraving machines is limited, making it difficult to adapt to the need for multiple tool changes for complex parts, which affects processing efficiency and quality. Utility Model Content

[0004] Based on this, a double-layer straight-line tool magazine and engraving machine are provided to solve the problem that the tool magazine capacity of multi-head 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 proposes a double-layer straight-line tool magazine, comprising:

[0006] The tool magazine body includes an upper tool disc and a lower tool disc stacked on top of each other. Both the upper and lower tool discs are provided with multiple rows of tool positions arranged in a second direction along a first direction. The tool positions are used to load tool holders.

[0007] A first driving mechanism is connected to the tool magazine body and drives the tool magazine body to move along the first direction.

[0008] The second driving mechanism is connected to the lower cutter head and drives the lower cutter head to move along the first direction.

[0009] In one embodiment, the double-layer straight-line tool magazine further includes a protective mechanism, the protective mechanism comprising:

[0010] A protective shell is provided on the tool magazine body. The protective shell is provided with a working port for the upper tool disc and the lower tool disc to be removed from the protective shell.

[0011] A hinged door, which is movably connected to the protective shell and covers the working opening;

[0012] A protective drive component is connected to the door drive to drive the door to move and open the working port.

[0013] In one embodiment, the working port includes an upper working port and a lower working port, the upper working port for the upper cutter head to be removed from the protective shell, and the lower working port for the lower cutter head to be removed from the protective shell;

[0014] The hinged door includes an upward hinged door and a downward hinged door. The upward hinged door is movably connected to the protective shell and covers the upper working opening; the downward hinged door is movably connected to the protective shell and covers the lower working opening.

[0015] The protective drive component includes an upper drive component and a lower drive component. The upper drive component is connected to the upward-opening door drive and drives the upward-opening door to move to open the upper working port. The lower drive component is connected to the downward-opening door drive and drives the downward-opening door to move to open the lower working port.

[0016] In one embodiment, the dual-layer straight-line tool magazine further includes a cleaning mechanism, the cleaning mechanism comprising:

[0017] An upper cleaning assembly, comprising an upper cleaning air pipe disposed above the upper cutter disc, the upper cleaning air pipe having a plurality of upper air holes, wherein a first driving mechanism drives the tool magazine body to move the upper cutter disc below the upper cleaning air pipe, and blows air onto the tool positions on the upper cutter disc through the upper air holes; and / or

[0018] The lower cleaning assembly includes a lower cleaning air pipe disposed above the lower cutter disc and having a plurality of lower air holes. The second driving mechanism drives the lower cutter disc to move below the lower cleaning air pipe and blows air onto the cutter positions below the lower cutter disc through the lower air holes.

[0019] In one embodiment, the upper cutter head is provided with N1 rows of cutter positions along the first direction, and each row of cutter positions is provided with N2 cutter positions along the second direction;

[0020] The lower cutter head is provided with M1 rows of cutter positions along the first direction, and each row of cutter positions is provided with M2 cutter positions along the second direction;

[0021] The second direction and the first direction are both horizontal and perpendicular to each other.

[0022] In one embodiment, the dual-layer straight-line tool magazine further includes a detection mechanism, the detection mechanism comprising:

[0023] Controller;

[0024] The sensor is communicatively connected to the controller. The number of the sensors is not less than the sum of N2 and M2. Each of the N2 tool positions on the upper tool turret corresponds to at least one sensor. Each of the M2 tool positions on the lower tool turret corresponds to at least one sensor.

[0025] The sensor is used to detect whether there is a tool holder in the corresponding tool position and outputs a corresponding signal to the controller.

[0026] In one embodiment, the tool holders on the upper tool disc and the tool holders on the lower tool disc are staggered in the vertical direction;

[0027] The vertical projections of the tool holder on the upper tool disc and the tool holder on the lower tool disc do not overlap.

[0028] In one embodiment, the sensors are arranged in a row along the second direction.

[0029] An embodiment of the second aspect of this application provides a precision engraving machine, which includes the double-layer straight-line tool magazine described in any of the above embodiments.

[0030] 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;

[0031] 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.

[0032] According to the embodiments of the present application, a double-layer straight-line tool magazine and a precision engraving machine are provided. The double-layer straight-line tool magazine of the present application has an upper tool disc and a lower blade forming a double-layer tool disc structure stacked vertically. Both the upper and lower tool discs are provided with multiple rows of tool positions arranged in a second direction along a first direction, shortening the spacing between tool positions and increasing the spatial density of tool positions. When it is necessary to use a tool position on the upper tool disc to retrieve or place a tool holder, the tool magazine body is driven to move along the first direction via a first driving component, causing the tool magazine body to move along the upper tool disc in the first direction, aligning the target row of tool positions with the spindle head, and the spindle head descends to perform the retrieval or placement of the tool holder. When it is necessary to use a position on the lower tool disc to retrieve or place a tool holder, the lower tool disc is driven to move along the first direction via a second driving mechanism, causing the lower tool disc to slide out from under the upper tool disc, exposing the positions on the lower tool disc, and aligning the target row of positions on the lower tool disc with the spindle head. The above settings enable independent control of the upper and lower tool turret drives, increasing tool magazine capacity and adapting to the need for multiple tool changes for complex parts. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a double-layer straight-line tool magazine and a precision engraving machine according to an embodiment of this application.

[0034] Figure 2 This is a structural schematic diagram illustrating the tool magazine layout in a double-layer straight-line tool magazine and engraving machine according to an embodiment of this application.

[0035] Figure 3 This is a structural schematic diagram illustrating the tool magazine layout in a double-layer straight-line tool magazine according to an embodiment of this application.

[0036] Figure 4 This is a schematic diagram of the structure of a double-layer straight-line tool magazine with a hinged door closing according to an embodiment of this application.

[0037] Figure 5 This is a schematic diagram of the upper tool head in a double-layer straight-line tool magazine according to an embodiment of this application.

[0038] Figure 6 This is an exploded view of the upper tool head in a double-layer straight-line tool magazine according to an embodiment of this application.

[0039] Figure 7 This is a schematic diagram of the lower tool head in a double-layer straight-line tool magazine according to an embodiment of this application.

[0040] Figure 8 This is a schematic diagram of the structure of a double-layer straight-line tool magazine with the bottom-opening door in an embodiment of this application.

[0041] Figure 9 for Figure 8 A magnified view of a portion of point A in the middle.

[0042] Figure 10 This is a schematic diagram of the slide plate in a double-layer straight-line tool magazine according to an embodiment of this application.

[0043] Figure 11 This is an exploded view of the lower tool head in a double-layer straight-line tool magazine according to an embodiment of this application.

[0044] Figure 12 This is a side sectional view of the lower tool head in a double-layer straight-line tool magazine according to an embodiment of this application.

[0045] Figure 13 This is another perspective of the side sectional view of the lower tool head in a double-layer straight-line tool magazine according to an embodiment of this application.

[0046] Figure 14 This is an exploded view of the double-layer straight-line tool magazine with the top-hinged door closed, according to an embodiment of this application.

[0047] Figure 15 This is an exploded view of the double-layer straight-line tool magazine with the top-hinged door open according to an embodiment of this application.

[0048] Figure 16 This is a schematic diagram illustrating the cleaning mechanism in a double-layer straight-line tool magazine according to an embodiment of this application.

[0049] Figure 17 This is a schematic diagram illustrating the sensor detection principle in a double-layer straight-line tool magazine according to an embodiment of this application.

[0050] Figure 18 This is a schematic diagram illustrating the principle of the upper tool changer operation when the double-layer straight-line tool magazine and engraving machine according to an embodiment of this application are in operation.

[0051] Figure 19 This is a schematic diagram illustrating the working principle of the lower tool changer in a double-layer straight-line tool magazine and engraving machine according to an embodiment of this application.

[0052] Figure label:

[0053] 10000, CNC engraving machine;

[0054] 1000, Double-layer straight-line tool magazine;

[0055] 100. Tool magazine body; 101. Tool magazine bottom plate; 102. Lower door panel; 103. Lower baffle;

[0056] 110. Upper cutter head; 111. Upper cutter head base plate; 112. Upper small cutter head; 113. Side support plate;

[0057] 120. Lower cutter head; 121. Lower cutter head base plate; 122. Lower small cutter head; 123. Cutter head support plate;

[0058] 130. Tool position;

[0059] 140. Knife handle; 141. Knife handle to be returned;

[0060] 200. First drive mechanism;

[0061] 300. Second drive mechanism; 310. Lower drive cylinder; 311. Cylinder push block; 312. Stroke limit block; 313. Front buffer block; 314. Rear buffer block; 320. Lower cutter head linear guide; 330. Lower cutter head slider;

[0062] 400. Protective facilities;

[0063] 410. Protective shell; 411. Working port; 4111. Upper working port; 4112. Lower working port; 412. Side plate; 413. Upper cover plate; 414. Rear plate;

[0064] 420. Flip-up door; 421. Upward-opening door; 4211. Small hinge; 422. Downward-opening door; 4221. Lower hinge;

[0065] 430. Upper drive component; 4301. Upper drive cylinder; 4302. Upper drive cylinder piston rod; 432. Lower drive component; 4321. Bearing fixing rod; 4322. Lower door connecting rod; 4323. Bearing; 4324. Slide plate; 43241. Slide;

[0066] 500. Cleaning agencies;

[0067] 510. Install the cleaning air hose; 511. Install the air inlet; 512. Install the air hose fixing clip;

[0068] 520. Lower cleaning air pipe; 521. Lower air inlet; 522. Air inlet;

[0069] 600. Sensor;

[0070] 2000, Spindle head;

[0071] 3000, Worktable; 3100, Worktable drive mechanism; 3200, Worktable sliding mechanism; 3210, Y-axis slide rail; 3220, Y-axis slider;

[0072] 4000, Bed frame. Detailed Implementation

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] See Figure 1 , Figure 2 and Figure 3 At least one embodiment of this application proposes a double-layer straight-line tool magazine 1000. The double-layer straight-line tool magazine 1000 includes a tool magazine body 100, a first drive mechanism 200, and a second drive mechanism 300. It includes an upper tool disc 110 and a lower tool disc 120 stacked vertically. Both the upper tool disc 110 and the lower tool disc 120 are provided with multiple rows of tool positions 130 arranged along a second direction along a first direction. The tool positions 130 are used to load tool holders 140. The first drive mechanism 200 is drivenly connected to the tool magazine body 100 and drives the tool magazine body 100 to move along the first direction. The second drive mechanism 300 is drivenly connected to the lower tool disc 120 and drives the lower tool disc 120 to move along the first direction.

[0080] According to the embodiment of this application, the double-layer straight-line tool magazine 1000 has an upper tool disc 110 and a lower cutting tool forming a double-layer tool disc structure stacked vertically. Both the upper tool disc 110 and the lower tool disc 120 are provided with multiple rows of tool positions 130 arranged in a second direction along a first direction, shortening the spacing between the tool positions 130 and increasing the spatial density of the tool positions 130. When it is necessary to use the tool positions 130 on the upper tool disc 110 to pick up or place the tool holder 140, the tool magazine body 100 is driven to move along the first direction by the first driving component, so that the tool magazine body 100 drives the upper upper tool disc 110 to move in the first direction, aligning the target row of tool positions 130 with the spindle head 2000, and the spindle head 2000 descends to perform the action of picking up or placing the tool holder 140. When the lower tool turret 120 needs to be positioned for picking up or placing the tool holder 140, the second drive mechanism 300 simply drives the lower tool turret 120 to move along the first direction, causing the lower tool turret 120 to slide out from under the upper tool turret 110, exposing the positioning points on the lower tool turret 120. The positioning points on the lower tool turret 120 can then be aligned with the spindle head 2000. This setup allows for independent control of the drives of the upper tool turret 110 and the lower tool turret 120, increasing the tool magazine capacity and adapting to the needs of multiple tool changes for complex parts.

[0081] In some embodiments, the first drive mechanism 200 includes a tool magazine drive screw, which is disposed along a first direction, wherein the first direction is... Figure 1 The tool magazine drive screw is threaded with a tool magazine drive nut, and the tool magazine body 100 is connected to the tool magazine drive nut. The tool magazine drive motor drives the tool magazine drive screw to rotate, thereby causing the tool magazine drive nut and the tool magazine body 100 to move along the first direction.

[0082] See Figure 2 and Figure 3 In some embodiments, the tool magazine body 100 includes a tool magazine base plate 101, and all other components of the tool magazine body 100 are mounted on the tool magazine base plate 101. The tool magazine base plate 101 is used to connect with the first drive mechanism 200. Specifically, four Y-axis sliders 3220 are provided below the tool magazine base plate 101, and Y-axis slide rails 3210 are provided corresponding to the Y-axis sliders 3220. The Y-axis slide rails 3210 are arranged along a first direction, and the Y-axis sliders 3220 are slidably connected to the Y-axis slide rails 3210.

[0083] See Figure 3 and Figure 4 In some embodiments, the upper cutter head 110 is provided with N1 rows of cutter positions 130 along a first direction, and each row of cutter positions 130 is provided with N2 cutter positions 130 along a second direction. The second direction is the X direction in the figure.

[0084] With the above configuration, the tool positions 130 of the upper tool head 110 are arranged along two mutually perpendicular horizontal directions. In the first direction, N1 rows of tool positions 130 are provided, and each row of tool positions 130 contains N2 tool positions 130. Through this arrangement, the distribution of tool positions 130 on the upper tool head 110 is clearly defined. The specific values ​​of N1 and N2 are determined according to the design of the tool magazine body 100 and the actual usage requirements. They together determine the number of tool positions 130 and the overall layout of the upper tool head 110.

[0085] Specifically, see Figure 5 and Figure 6 In some embodiments, the upper cutter head 110 has three rows of cutter positions 130 along a first direction, and each row of cutter positions 130 has twenty cutter positions 130 along a second direction. That is, N1 takes the value of three, and M1 takes the value of twenty. The upper cutter head 110 has a total of sixty cutter positions 130.

[0086] In some embodiments, the upper cutter head 110 includes an upper cutter head base plate 111 and a plurality of upper smaller cutter heads 112 disposed on the upper cutter head base plate 111. Each upper smaller cutter head 112 is provided with a plurality of tool positions 130 arranged in an array. The upper cutter head base plate 111 is mounted and fixed to the tool magazine base plate 101 by side support plates 113 on both sides.

[0087] In some embodiments, the upper cutter head base plate 111 is provided with five sets of upper small cutter heads 112 arranged along a second direction. Each upper small cutter head 112 has three rows of tool positions 130 arranged along a first direction, and each row of tool positions 130 has four tool positions 130 arranged along the second direction. That is, each set of upper small cutter heads 112 can be equipped with twelve tool holders 140, and the five sets of upper small cutter heads 112 provide tool holders 140 for five spindle heads 2000.

[0088] In some embodiments, the lower cutter head 120 has M1 rows of tool positions 130 along a first direction, and each row of tool positions 130 has M2 tool positions 130 along a second direction. The second direction and the first direction are both horizontal and perpendicular to each other. The arrangement of the tool positions 130 in the lower cutter head 120 is similar to that of the upper cutter head 110. M1 rows of tool positions 130 are arranged in the first direction, similarly distributed in M1 rows along the same horizontal direction as the upper cutter head 110. In the second direction, each row has M2 tool positions 130. The values ​​of M1 and M2 are determined based on the design of the tool magazine body 100, thus determining the number and layout of the tool positions 130 in the lower cutter head 120.

[0089] Both the first and second directions are horizontal and perpendicular to each other. In the actual design and application of the tool magazine body 100, this helps to accurately plan the position of the tool position 130, facilitates the first drive mechanism 200 and the second drive mechanism 300 to control the movement of the corresponding tool disc, and enables the target tool position 130 to accurately dock with the spindle head 2000 of the engraving machine 10000, thereby achieving efficient and accurate tool loading and unloading operations. It also helps to make reasonable use of the internal space of the tool magazine body 100 and improve the storage and usage efficiency of the tool magazine body 100.

[0090] Specifically, the lower cutter head 120 has three rows of tool positions 130 along the first direction, and each row of tool positions 130 has fifteen tool positions 130 along the second direction. That is, N2 takes the value of three, and M2 takes the value of fifteen. The lower cutter head 120 has a total of forty-five tool positions 130.

[0091] In some examples, the lower cutter head 120 includes a lower cutter head base plate 121 and a plurality of lower smaller cutter heads 122 disposed on the lower cutter head base plate 121. Specifically, four sets of lower smaller cutter heads 122 are fixed to the lower cutter head base plate 121 by ten cutter head support plates 123, providing tool holders 140 for five spindle heads 2000, and each set of lower smaller cutter heads 122 can accommodate nine tool holders 140.

[0092] The second drive mechanism 300 includes a lower drive cylinder 310, which is arranged along a first direction and fixed to the tool magazine base plate 101. The piston rod of the lower drive cylinder 310 is connected to the lower tool magazine base plate 121 via a cylinder pusher 311. When the lower drive cylinder 310 is ventilated, it can push the lower tool magazine base plate 121 to move back and forth. The lower tool magazine slider 330 and the lower tool magazine linear guide 320 are slidably connected. The lower tool magazine slider 330 is fixed to the tool magazine base plate 101, and the lower tool magazine linear guide 320 is fixed to the lower tool magazine base plate, so the lower tool magazine base plate 121 and the tool magazine base plate 101 can slide relative to each other.

[0093] The front buffer block 313 and the rear buffer block 314 are fixed to the lower tool turret base plate 121, and the stroke limit block 312 is fixed to the tool magazine base plate 101. When the lower drive cylinder 310 pushes the lower tool turret base plate 121 to the foremost position, the rear buffer block 314 collides with the stroke limit block 312, and its position is locked. When the lower drive cylinder 310 pulls the lower tool turret base plate 121 to the rearmost position, the front buffer block 313 collides with the stroke limit block 312, and its position is locked. The farthest and closest positions of the lower tool turret base plate 121 can also be controlled by adjusting the positions of the front buffer block 313 and the rear buffer block 314.

[0094] See Figure 3 and Figure 4In some embodiments, the double-layer straight-line tool magazine 1000 further includes a protective mechanism 400. The protective mechanism 400 includes a protective shell 410, a hinged door 420, and a protective drive component. The protective shell 410 covers the tool magazine body 100 and has a working opening 411 for the upper tool disc 110 and the lower tool disc 120 to move out of the protective shell 410. The hinged door 420 is movably connected to the protective shell 410 and covers the working opening 411. The protective drive component is driven by the hinged door 420, driving the hinged door 420 to move and open the working opening 411.

[0095] With the above-described configuration, the protective shell 410 covers the tool magazine body 100, isolating it from the external environment. This prevents dust, debris, and other impurities from entering the tool magazine body 100, thus avoiding any impact on the precision of the tools on the tool turret or causing malfunctions in other parts of the tool magazine body 100. Furthermore, the protective shell 410 also provides a degree of safety protection, preventing operators from accidentally touching the tool magazine body 100 during operation and causing personal injury. The hinged door 420 is movably connected to the protective shell 410. Its main function is to cover the working opening 411 on the protective shell 410 when the tool magazine body 100 is not in operation, further enhancing the protective effect. This movable connection allows the hinged door 420 to be opened and closed flexibly to meet the operational needs of the tool magazine body 100 for loading and unloading tools.

[0096] When the tool magazine body 100 needs to perform a tool holder retrieval or placement operation, the protective drive mechanism activates, driving the hinged door 420 to move and open the working opening 411. This allows the upper tool disc 110 and lower tool disc 120 to smoothly exit the protective housing 410 and cooperate with the spindle head 2000 to complete the tool retrieval and placement actions. After the operation is completed, the protective drive mechanism drives the hinged door 420 to move again, covering the working opening 411 and restoring the protective state. The protective drive mechanism enables automated control of the hinged door 420, facilitating the operation of the tool magazine body 100 while ensuring the effective implementation of the protective function.

[0097] See Figure 3 and Figure 4In some embodiments, the working port 411 includes an upper working port 4111 and a lower working port 4112. The upper working port 4111 allows the upper cutter head 110 to be removed from the protective shell 410, and the lower working port 4112 allows the lower cutter head 120 to be removed from the protective shell 410. The hinged door 420 includes an upper hinged door 421 and a lower hinged door 422. The upper hinged door 421 is movably connected to the protective shell 410 and covers the upper working port 4111; the lower hinged door 422 is movably connected to the protective shell 410 and covers the lower working port 4112. The protective drive includes an upper drive member 430 and a lower drive member 432. The upper drive member 430 is driven to the upper hinged door 421 and drives the upper hinged door 421 to move to open the upper working port 4111; the lower drive member 432 is driven to the lower hinged door 422 and drives the lower hinged door 422 to move to open the lower working port 4112.

[0098] With the above configuration, the working port 411 on the protective shell 410 is divided into an upper working port 4111 and a lower working port 4112. This design is based on the independent movement requirements of the upper cutter head 110 and the lower cutter head 120. The upper working port 4111 is specifically used for the upper cutter head 110 to move out of the protective shell 410. When picking up or putting down the upper cutter head 110, the upper cutter head 110 is driven by the first drive mechanism 200 to move out from the upper working port 4111 and engage with the spindle head 2000. The lower working port 4112 is the channel for the lower cutter head 120. When it is necessary to pick up the lower cutter head 120, the lower cutter head 120 moves out from the lower working port 4112 with the help of the second drive mechanism 300 to dock with the spindle head 2000. The upper working port 4111 and the lower working port 4112 have a clear division of labor.

[0099] Corresponding to the upper working port 4111 and the lower working port 4112, the flip door 420 is also configured as an upper flip door 421 and a lower flip door 422. The upper flip door 421 is movably connected to the protective shell 410. When the upper tool head 110 is not in use, the upper flip door 421 covers the upper working port 4111 to prevent foreign objects from entering. The lower flip door 422 is also movably connected to the protective shell 410, covering the lower working port 4112 to protect the lower tool head 120 area. This independent flip door 420 design can more accurately protect the upper and lower tool heads 120 and facilitates individual control of the opening and closing state of each tool head area.

[0100] In the protective drive system, the upper drive unit 430 is driven to connect with the upward-opening door 421. When the upper cutter head 110 needs to be used, the upper drive unit 430 is activated, driving the upward-opening door 421 to move and open the upper working port 4111, allowing the upper cutter head 110 to be moved out smoothly. After the operation is completed, the upper drive unit 430 drives the upward-opening door 421 to close the upper working port 4111. The lower drive unit 432 is driven to connect with the downward-opening door 422. When the tool of the lower cutter head 120 is retrieved, the lower drive unit 432 drives the downward-opening door 422 to open the lower working port 4112. After use, the door is closed, achieving precise control and protection of the operation of the lower cutter head 120.

[0101] See Figure 5 and Figure 6 In some implementations, the tool magazine body 100 also includes a lower door panel 102 and a lower baffle 103, which are fixed to the side support plate 113 and the upper tool disc base plate 111. The lower hinge door 422 is hinged to the lower baffle 103 via a lower hinge 4221. When the lower hinge door 422 is closed, it forms a sealed space together with the lower door panel 102 and the lower baffle 103, protecting the tool position 130 and tool holder 140 of the lower tool disc 120.

[0102] See Figure 7 , Figure 8 , Figure 9 and Figure 10 In some embodiments, the lower drive member 432 includes a bearing fixing rod 4321, a lower door connecting rod 4322, a bearing 4323, and a sliding plate groove. Specifically, in conjunction with Figure 11 , Figure 12 and Figure 13 Both sides of the lower cutter head base plate 121 are equipped with sliding plates 4324, and sliding grooves 43241 are provided on the sliding plates 4324. One end of the lower door connecting rod 4322 is fixed to the lower door 422, and the other end is connected to the bearing 4323 through the bearing fixing rod 4321. The bearing 4323 is placed in the sliding groove 43241 of the sliding plate 4324. Through the structural design of the sliding groove 43241, when the lower drive cylinder 310 pushes the lower cutter head base plate 121 to the front, the lower door 422 flips down and opens, and remains in a horizontal position; when the lower drive cylinder 310 pulls the lower cutter head base plate 121 to the rear, the lower door 422 flips up and closes, and remains in a vertical position.

[0103] See Figure 14 and Figure 15The protective shell 410 includes a side plate 412, an upper cover plate 413, and a rear plate 414. The upper cover plate 413 and the rear plate 414 are both connected and fixed to the side plate 412, and the two side plates 412 are fixed to the machine tool. The upward-opening door 421 is connected to the upper cover plate 413 via four small hinges 4211, allowing relative rotation. The upper driving component 430 includes an upper driving cylinder 4301, which is mounted on the upper cover plate 413. The piston rod 4302 of the upper driving cylinder is connected to the upward-opening door 421. When the upper driving cylinder 4301 is vented and extends / retracts, it can drive the upward-opening door 421 to rotate 90°.

[0104] It is understood that the scheme of the upper-flip door 421 and the lower-flip door 422 in the embodiments of this application can also be replaced by a single upper-flip door 421 or a single lower-flip door 422. Taking a single upper-flip door 421 as an example, the size of the upper-flip door 421 is increased so that it can cover the upper working opening 4111 and the lower working opening 4112. The upper drive member 430 drives the upper-flip door 421 to open, so that the upper working opening 4111 and the lower working opening 4112 are exposed. Taking a single lower-flip door 422 as an example, the size of the lower-flip door 422 is increased so that it can cover the upper working opening 4111 and the lower working opening 4112. The lower drive member 432 drives the lower-flip door 422 to open, so that the upper working opening 4111 and the lower working opening 4112 are exposed, which can also achieve the same protective effect.

[0105] See Figure 16 In some embodiments, the double-layer straight-line tool magazine 1000 further includes a cleaning mechanism 500, which includes an upper cleaning component and an upper cleaning air pipe 510. The upper cleaning air pipe 510 is disposed above the upper tool disc 110 and has a plurality of upper air holes 511. The first driving mechanism 200 drives the tool magazine body 100 to move the upper tool disc 110 below the upper cleaning air pipe 510 and blows air onto the tool positions 130 on the upper tool disc 110 through the upper air holes 511.

[0106] With the above configuration, the upper cleaning air pipe 510 is installed above the upper cutter disc 110 and is fixedly connected to the protective shell 410 via the air pipe fixing buckle 512. Its position is designed to effectively clean the upper cutter disc 110. The upper cleaning air pipe 510 is provided with several upper air holes 511, through which airflow can be blown out.

[0107] Specifically, when cleaning of the upper tool disc 110 is required, the first drive mechanism 200 comes into play. The first drive mechanism 200 moves the tool magazine body 100. Since the upper tool disc 110 is mounted on the tool magazine body 100, it also moves until it reaches below the upper cleaning air pipe 510. At this time, the upper cleaning air pipe 510 blows air through the upper air hole 511, and this airflow directly acts on the tool positions 130 of the upper tool disc 110. The airflow can blow away dust, debris, and other impurities attached to the tool positions 130, preventing these impurities from affecting the tool installation accuracy and the normal operation of the tool magazine body 100. This ensures that the tool positions 130 of the upper tool disc 110 are always clean, providing good conditions for subsequent tool loading and unloading operations and ensuring the accuracy and stability of the tools during machining.

[0108] Specifically, the rear plate 414 is equipped with an upper cleaning air pipe 510. Compressed air is introduced into the upper cleaning air pipe 510, and the airflow is rapidly ejected from several micro upper air holes 511 to form a high-pressure air curtain. The tool magazine drive screw drives the entire tool magazine body 100 forward, and the tool holder 140 in the upper tool disc 110 passes under the air curtain at a constant speed. The iron filings and other impurities remaining on the tool holder 140 are carried away by the airflow to achieve a cleaning effect.

[0109] In some embodiments, the cleaning mechanism 500 includes a lower cleaning component, which includes a lower cleaning air pipe 520. The lower cleaning air pipe 520 is disposed above the lower cutter head 120 and is provided with a plurality of lower air holes 521. The second driving mechanism 300 drives the lower cutter head 120 to move below the lower cleaning air pipe 520 and blows air onto the cutter position 130 below the lower cutter head 120 through the lower air holes 521.

[0110] With the above configuration, the lower cleaning air pipe 520 is installed above the lower cutter head 120. Its position is designed so that the airflow generated by the air pipe can directly act on the cutter positions 130 of the lower cutter head 120, thereby effectively cleaning the impurities attached to the cutter positions 130. The lower cleaning air pipe 520 is provided with several lower air holes 521. Through these lower air holes 521, the airflow can be evenly blown to each cutter position 130 of the lower cutter head 120, achieving comprehensive cleaning.

[0111] Specifically, when it is necessary to clean the tool position 130 of the lower tool disc 120, the second drive mechanism 300 of the tool magazine body 100 starts working. The second drive mechanism 300 drives the lower tool disc 120 to move until it moves below the lower cleaning air pipe 520. At this time, the lower air hole 521 of the lower cleaning air pipe 520 starts blowing air, and the blown air can blow away dust, debris and other impurities on the tool position 130 of the lower tool disc 120. This process can prevent impurities from affecting the fitting accuracy between the tool holder 140 and the tool position 130, avoid tool changing difficulties due to impurity accumulation, ensure the stability of the tool magazine body 100 operation, and improve machining accuracy.

[0112] See Figure 6 In some embodiments, a lower cleaning air pipe 520 is installed at the front of the upper cutter head base plate 111 along the first direction, responsible for blowing air to clean the cutter positions 130 and cutter handles 140 within the lower cutter head 120. Compressed air is introduced through the air inlet 522 of the lower cleaning air pipe 520, and the airflow is rapidly ejected from several micro lower air inlets 521 to form a high-pressure air curtain; the lower drive cylinder 310 pushes the lower cutter head 120, and the cutter handles 140 within the lower cutter head 120 pass under the air curtain at a uniform speed, and the iron filings and other impurities remaining on the cutter handles 140 are carried away by the airflow to achieve a cleaning effect.

[0113] See Figure 17 In some embodiments, the double-layer straight-line tool magazine 1000 further includes a detection mechanism, which includes a controller and sensors 600. Sensors 600 are communicatively connected to the controller, and the number of sensors 600 is not less than the sum of N2 and M2. Each of the N2 tool positions 130 on the upper tool head 110 corresponds to at least one sensor 600, and each of the M2 tool positions 130 on the lower tool head 120 corresponds to at least one sensor 600. Sensors 600 are used to detect whether a tool holder 140 is present in the corresponding tool position 130 and output a corresponding signal to the controller.

[0114] With the above setup, the detection mechanism is used to monitor the status of tool positions 130. The number of sensors 600 has a specific requirement: it must be at least the sum of N² and M². This is because the upper tool head 110 has N² tool positions 130 per row, and the lower tool head 120 has M² tool positions 130 per row. To ensure accurate monitoring of the status of each tool position 130, each row of N² tool positions 130 on the upper tool head 110 must correspond to at least one sensor 600, and each row of M² tool positions 130 on the lower tool head 120 must also correspond to at least one sensor 600. This layout ensures that a row of tool positions 130 can be monitored simultaneously in the tool magazine. When it is necessary to monitor other rows of tool positions 130, the corresponding tool position 130 can be moved via the first drive mechanism 200 or the second drive mechanism 300.

[0115] Sensor 600 is used to detect whether a tool holder 140 is present in the corresponding tool position 130. If sensor 600 detects a tool holder 140 in the corresponding tool position 130, it immediately outputs a signal to the controller; conversely, if it detects that the corresponding tool position 130 is empty, it also outputs a corresponding signal to the controller. After receiving these signals, the controller can clearly know the status of each tool position 130, such as which tool positions 130 have tools and which are empty. This is crucial for the management and control of the tool magazine. For example, during tool changing operations, the controller can accurately select the tool position 130 with a tool based on this information, avoiding erroneous operations and thus improving the accuracy and efficiency of the tool magazine operation.

[0116] In some embodiments, the tool holders 140 on the upper tool shroud 110 and the tool holders 140 on the lower tool shroud 120 are staggered in the vertical direction. The vertical projections of the tool holders 140 on the upper tool shroud 110 and the tool holders 140 on the lower tool shroud 120 do not overlap. This arrangement improves the space utilization efficiency of the tool magazine and avoids interference.

[0117] In some embodiments, a row of sensors 600 is arranged along the second direction. With this arrangement, both the upper and lower tool discs 120 of the tool magazine body 100 have tool positions 130 arranged along the second direction. A row of sensors 600 arranged along this direction can cover the entire row of tool positions 130 using their sensing range. A single sensor 600 can detect tool holders 140 within a certain area. Arranging a row along the second direction allows for precise detection of the presence or absence of tool holders 140 in each row of tool positions 130. Furthermore, this layout adapts to the arrangement pattern of the tool positions 130 and is compatible with the overall structure of the tool magazine.

[0118] With the above configuration, compared to setting up a separate sensor 600 at each tool position 130, arranging a row of sensors 600 along the second direction reduces the number of sensors 600 required, significantly lowering costs. Simultaneously, wiring is simpler, reducing circuit complexity, lowering the risk of circuit failure, and facilitating later installation, maintenance, and repair. Furthermore, this centralized layout makes it easier to implement unified shielding and protection measures when facing external interference, ensuring the stability of detection.

[0119] Specifically, the upper tool magazine 110 has twenty tool holders 140 in one row, and the lower tool magazine 120 has fifteen tool holders 140 in one row. Therefore, thirty-five sensors 600 are installed on the rear plate 414 directly above the thirty-five tool holders 140, arranged in a row along the second direction. The sensors 600 are positioned downwards, and a detection range S is set below each sensor 600. The sensors 600 determine whether there are tool holders 140 in the detection area below and output a corresponding signal to the device. Since both the upper tool magazine 110 and the lower tool magazine 120 have three rows of tool holders 140, with the sensors 600 fixed, the entire tool magazine body 100 needs to move forward twice to complete all the detection work.

[0120] See Figure 1 and Figure 2 At least one embodiment of this application proposes a CNC engraving machine 10000, which includes the double-layer straight-line tool magazine 1000 of any of the above embodiments.

[0121] According to the embodiment of this application, the CNC engraving machine 10000 requires frequent tool changes when machining complex parts. The double-layer straight-line tool magazine 1000's double-layer structure and high-density tool position 130 layout significantly increase the tool storage capacity. This allows the CNC engraving machine 10000 to quickly locate and retrieve the required tools, reducing tool change time and improving processing efficiency. The cleaning mechanism 500 and the detection mechanism ensure that the tools are in good condition. The cleaning mechanism 500 can promptly remove impurities on the tool positions 130 to prevent them from affecting the tool installation accuracy and cutting effect; the detection mechanism monitors the status of the tool holder 140, facilitating tool changes. The presence of the protective mechanism 400 provides better safety protection for the CNC engraving machine 10000. The protective shell 410 can block debris and dust generated during processing, preventing them from entering the tool magazine body 100 and reducing the risk of equipment failure; the hinged door 420 opens when the tool magazine body 100 is working and closes when not working, protecting the operator's safety and maintaining a clean internal environment, extending the equipment's service life.

[0122] In some embodiments, the engraving machine 10000 further includes a worktable 3000, which is provided with a worktable drive mechanism 3100 and a worktable sliding mechanism 3200. The worktable drive 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 drive mechanism 200 drives the tool magazine body 100 to move along the first direction on the worktable sliding mechanism 3200.

[0123] Specifically, the engraving machine 10000 includes a bed 4000, a worktable 3000, and a double-layer straight-line 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 body 100.

[0124] 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 table drive nut is threaded onto the table drive screw, and the table 3000 is connected to the table drive nut. The table 3000 drive motor drives the table drive screw to rotate, thereby causing the table drive nut and the table 3000 to move along the first direction.

[0125] 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 200, allowing the tool magazine body 100 to also move along the first direction on the worktable sliding mechanism 3200. The worktable 3000 and the double-layer straight-line tool magazine 1000 can move independently.

[0126] 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 200 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 130 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.

[0127] See Figure 18 In this application embodiment, the double-layer straight-line tool magazine 1000 and the engraving machine 10000 operate with the upper tool disc 110 changing tool mechanism as follows:

[0128] 1. Tool Change Preparation Stage

[0129] See Figure 18 In Figure (1-1), when the machine tool issues a tool change command, the controller receives the command and responds quickly. The upper drive unit 430 of the upward-opening door 421 is activated, causing the upward-opening door 421 to open until it is in a horizontal position.

[0130] At the same time, the air passage valve of the upper cleaning air blowing pipe 510 is opened, and compressed air is delivered to the upper cleaning air blowing pipe 510 through the pipeline to start blowing air to the cutter position 130 of the upper cutter head 110.

[0131] At this time, sensor 600 also begins its detection work, using its own sensing principle to detect the tool position 130 on the tool magazine. The tool magazine body 100 moves forward twice under the action of the first drive mechanism 200, with the distance and accuracy of each movement precisely controlled by the controller. During these two movements, sensor 600 will detect in real time whether there is no tool at the tool return position R1 and whether there is a tool at the tool pick-up position G1, and feed the detection results back to the controller.

[0132] 2. Returning the knife phase

[0133] See Figure 18In Figure (1-2), after the controller confirms that there is no tool at the tool return position R1 based on the information fed back by the sensor 600, it drives the tool magazine body 100 to move forward again, so that the tool return position R1 is completely aligned with the axis of the spindle head 2000.

[0134] The spindle head 2000 begins to descend. When it reaches the appropriate position, the tool clamping device inside the spindle head 2000 performs a tool release action. This action is usually achieved through a hydraulic or pneumatic system, releasing the tool clamping device so that the tool holder 141 to be returned can be released from the grip of the spindle head 2000. The spindle head 2000 then smoothly places the tool holder 141 to be returned on the tool return position R1.

[0135] 3. Knife Removal Stage

[0136] See Figure 18 In Figure (1-3), after the tool return action is completed, the tool magazine body 100 moves as a whole under the action of the first drive mechanism 200, so that the tool pick-up position G1 is aligned with the axis of the spindle head 2000.

[0137] The spindle head 2000 descends again, and when it reaches the appropriate position, the tool clamping device inside the spindle head 2000 performs the clamping action. Sufficient clamping force is applied by the hydraulic or pneumatic system to firmly clamp the tool holder 140 at the tool removal position G1 inside the spindle head 2000, and then the tool holder 140 is removed.

[0138] 4. Reset Phase

[0139] See Figure 18 In Figure (1-4), after the tool retrieval action is completed, the spindle head 2000 is raised to a safe position. The safe position is preset to avoid collision between the spindle head 2000 and the tool magazine during the tool magazine movement.

[0140] The tool magazine body 100 moves backward under the action of the first drive mechanism 200, returning to its initial position. The upper drive component 430 of the upper door 421 is activated again, causing the upper door 421 to close until it is in a vertical position. At the same time, the air valve of the upper cleaning air pipe 510 closes, stopping air blowing; the sensor 600 also pauses its operation, waiting for the next tool change command. The machine tool controller continues to execute subsequent machining operations.

[0141] See Figure 19 In this application embodiment, the double-layer straight-line tool magazine 1000 and the engraving machine 10000 operate with the following principle for the tool changing action of the lower tool disc 120:

[0142] 1. Tool Change Preparation Stage

[0143] See Figure 18In Figure (2-1), after the machine tool issues a tool change command, the controller receives the command and responds. The upper drive unit 430 of the upper door 421 is activated, causing the upper door 421 to open to a horizontal position. This process is the same as the opening action of the upper door 421 when the upper tool disc 110 changes tools.

[0144] The air valve of the lower cleaning air pipe 520 is opened, and compressed air is delivered to the lower cleaning air pipe 520 through the pipeline, starting to blow air to the tool position 130 of the lower tool disc 120 to remove impurities in the tool position 130. The sensor 600 starts to work, and the tool magazine body 100 moves forward twice under the action of the first drive mechanism 200. The distance and accuracy of each movement are precisely controlled by the controller. During these two movements, the sensor 600 will detect in real time whether there is a tool at the tool return position R2 and whether there is a tool at the tool pick-up position G2, and feed the detection results back to the controller.

[0145] 2. Lower cutter head 120 extension and return phase

[0146] See Figure 18 In Figure (2-2), after the controller confirms that there is no tool at the tool return position based on the information fed back by the sensor 600, the lower drive cylinder 310 of the second drive mechanism 300 starts to work. The piston rod of the lower drive cylinder 310 extends, driving the lower tool disc 120 out of the initial position to reach the tool change working position.

[0147] The tool magazine body 100 moves forward under the action of the first drive mechanism 200, aligning the tool return position R2 with the axis of the spindle head 2000. When the spindle head 2000 descends to the appropriate position, the tool clamping device inside the spindle head 2000 performs a tool release action, disengaging the tool holder 141 to be returned from the spindle head 2000. The spindle head 2000 then smoothly places the tool holder 141 to be returned on the tool return position R2.

[0148] 3. Knife Removal Stage

[0149] See Figure 18 As shown in Figure (2-3), after the tool return action is completed, the tool magazine body 100 moves as a whole under the action of the first drive mechanism 200, aligning the tool pick-up position G2 with the axis of the spindle head 2000. The spindle head 2000 descends again, and when it reaches the appropriate position, the tool clamping device inside the spindle head 2000 performs a tool clamping action, firmly clamping the tool holder 140 on the tool pick-up position G2 inside the spindle head 2000, and removing the tool holder 140 on the tool pick-up position G2.

[0150] 4. Reset Phase

[0151] See Figure 18In Figure (2-4), after the tool retrieval action is completed, the spindle head 2000 is raised to a safe position. The tool magazine body 100 moves backward under the action of the first drive mechanism 200, returning to its initial position.

[0152] The lower drive cylinder 310 of the second drive mechanism 300 operates again, and the piston rod of the lower drive cylinder 310 retracts, driving the lower cutter head 120 back to its initial position. The lower door 422 closes automatically.

[0153] See Figure 18 In Figure (2-5), the upper drive unit 430 of the upward-opening door 421 is activated, causing the upward-opening door 421 to close and be in a vertical position. At the same time, the air valve of the lower cleaning air pipe 520 is closed, stopping the air blowing; the sensor 600 also stops working, and the machine tool controller continues to execute subsequent processing actions.

[0154] 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.

[0155] 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 double-layer straight-line tool magazine, characterized in that, include: The tool magazine body includes an upper tool disc and a lower tool disc stacked on top of each other. Both the upper and lower tool discs are provided with multiple rows of tool positions arranged in a second direction along a first direction. The tool positions are used to load tool holders. A first driving mechanism is connected to the tool magazine body and drives the tool magazine body to move along the first direction. The second driving mechanism is connected to the lower cutter head and drives the lower cutter head to move along the first direction.

2. The double-layer straight-line tool magazine according to claim 1, characterized in that, The dual-layer straight-line tool magazine also includes a protective mechanism, which comprises: A protective shell is provided on the tool magazine body. The protective shell is provided with a working port for the upper tool disc and the lower tool disc to be removed from the protective shell. A hinged door, which is movably connected to the protective shell and covers the working opening; A protective drive component is connected to the door drive to drive the door to move and open the working port.

3. The double-layer straight-line tool magazine according to claim 2, characterized in that, The working port includes an upper working port and a lower working port. The upper working port allows the upper cutter head to be removed from the protective shell, and the lower working port allows the lower cutter head to be removed from the protective shell. The hinged door includes an upward hinged door and a downward hinged door. The upward hinged door is movably connected to the protective shell and covers the upper working opening; the downward hinged door is movably connected to the protective shell and covers the lower working opening. The protective drive component includes an upper drive component and a lower drive component. The upper drive component is connected to the upward-opening door drive and drives the upward-opening door to move to open the upper working port. The lower drive component is connected to the downward-opening door drive and drives the downward-opening door to move to open the lower working port.

4. The double-layer straight-line tool magazine according to claim 1, characterized in that, The dual-layer straight-line tool magazine also includes a cleaning mechanism, which comprises: An upper cleaning assembly, comprising an upper cleaning air pipe disposed above the upper cutter disc, the upper cleaning air pipe having a plurality of upper air holes, wherein a first driving mechanism drives the tool magazine body to move the upper cutter disc below the upper cleaning air pipe, and blows air onto the tool positions on the upper cutter disc through the upper air holes; and / or The lower cleaning assembly includes a lower cleaning air pipe disposed above the lower cutter disc and having a plurality of lower air holes. The second driving mechanism drives the lower cutter disc to move below the lower cleaning air pipe and blows air onto the cutter positions below the lower cutter disc through the lower air holes.

5. The double-layer straight-line tool magazine according to claim 1, characterized in that, The upper cutter head is provided with N1 rows of cutter positions along the first direction, and each row of cutter positions is provided with N2 cutter positions along the second direction; The lower cutter head is provided with M1 rows of cutter positions along the first direction, and each row of cutter positions is provided with M2 cutter positions along the second direction; The second direction and the first direction are both horizontal and perpendicular to each other.

6. The double-layer straight-line tool magazine according to claim 5, characterized in that, The dual-layer straight-line tool magazine also includes a detection mechanism, which includes: Controller; The sensor is communicatively connected to the controller. The number of the sensors is not less than the sum of N2 and M2. Each of the N2 tool positions on the upper tool turret corresponds to at least one sensor. Each of the M2 tool positions on the lower tool turret corresponds to at least one sensor. The sensor is used to detect whether there is a tool holder in the corresponding tool position and outputs a corresponding signal to the controller.

7. The double-layer straight-line tool magazine according to claim 6, characterized in that, The tool holders on the upper tool disc and the lower tool disc are staggered in the vertical direction; The vertical projections of the tool holder on the upper tool disc and the tool holder on the lower tool disc do not overlap.

8. The double-layer straight-line tool magazine according to claim 7, characterized in that, The sensors are arranged in a row along the second direction.

9. A precision engraving machine, characterized in that, The engraving machine includes the double-layer straight-line tool magazine as described in any one of claims 1-8.

10. The engraving machine according to claim 9, characterized in that, 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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