Guard mechanism and machine tool with same

Abstract

This invention provides a protective mechanism and a machine tool having the same. The protective mechanism is detachably mounted on the machine body and includes: a spindle fixing assembly, which includes a first protective clamping plate and a second protective clamping plate, with a clamping space between the first and second protective clamping plates for accommodating the spindle; at least a portion of the first and / or at least a portion of the second protective clamping plate is in contact with the spindle; a crossbeam fixing assembly, detachably mounted on the machine body, with at least a portion pressing against the crossbeam of the machine body; and a connecting bracket, mounted on the machine body, with the electrical cabinet assembly of the machine body fixedly mounted on the connecting bracket. This application solves the problem in the prior art where the components on the gantry machine tool easily sway during hoisting, leading to reduced hoisting safety and efficiency.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, and more specifically, to a protective mechanism and a machine tool having the same. Background Technology

[0002] Twin-spindle gantry milling machines are high-efficiency, high-precision CNC machine tools. They feature two spindles that can operate independently or synchronously, significantly improving production efficiency and machining accuracy. These machines typically employ advanced CNC technology and automated control, making them suitable for machining complex parts in various fields such as automotive, aerospace, and mold manufacturing. Thanks to their twin-spindle design and automated control, twin-spindle gantry milling machines have become indispensable key equipment in modern manufacturing. They play a crucial role in improving production efficiency, reducing costs, and ensuring product quality, and are expected to have even broader application prospects in the future.

[0003] Due to the unique characteristics of twin-spindle gantry milling machines, the overall hoisting of the machine is crucial for both the machine itself and the entire production line. Firstly, as a high-value piece of equipment, the safety of the machine during transportation and installation is paramount. Any impact, vibration, or tilting during hoisting can cause irreversible damage, affecting its machining accuracy and lifespan. Secondly, portability must be considered, enabling the hoisting of the entire gantry milling machine while minimizing the disassembly and reassembly of parts. The overall hoisting of the machine affects the layout and efficiency of the entire production line; a well-designed hoisting device can save time and costs, and improve work efficiency.

[0004] The existing gantry milling machine hoisting has the following problems:

[0005] 1. The gantry milling machine has a complex structure. Before hoisting, the gantry, electrical cabinet, crossbeam, spindle and slide saddle need to be completely fixed, which is difficult.

[0006] 2. Gantry milling machines are heavy, and during hoisting, they are prone to shaking and collisions, which increases the risk of safety accidents.

[0007] 3. The counterweights of the gantry milling machine need to be aligned. Inconsistent weights can easily cause the gantry milling machine to sway during hoisting. Uneven counterweights require adjustment, which increases hoisting time and reduces hoisting efficiency. Summary of the Invention

[0008] The main objective of this invention is to provide a protective mechanism and a machine tool having the same, so as to solve the problem that the components on the gantry machine tool are prone to shaking during the hoisting process, which reduces the safety and efficiency of hoisting.

[0009] To achieve the above objectives, according to one aspect of the present invention, a protective mechanism is provided, detachably mounted on a machine body. The protective mechanism includes: a spindle fixing assembly, which includes a first protective clamp and a second protective clamp, with a clamping space for accommodating the spindle provided between the first and second protective clamps, and at least a portion of the first and / or at least a portion of the second protective clamp being in contact with the spindle; a crossbeam fixing assembly, detachably mounted on the machine body, with at least a portion of the crossbeam fixing assembly pressing against the crossbeam of the machine body; and a connecting bracket, mounted on the machine body, with the electrical cabinet assembly of the machine body fixedly mounted on the connecting bracket.

[0010] Furthermore, the spindle fixing assembly also includes: a fixing bracket, which has a receiving space that extends along the axis of the spindle; a first protective clamp and a second protective clamp are respectively mounted on the fixing bracket; the clamping space is connected to the receiving space; the fixing bracket is detachably mounted on the machine body.

[0011] Furthermore, along the extension direction of the fixed bracket, the first protective clamp and the second protective clamp are arranged alternately.

[0012] Furthermore, the spindle fixing assembly also includes: a first buffer component disposed on the first protective clamp, at least a portion of the first buffer component being in contact with the spindle; and a second buffer component disposed on the second protective clamp, at least a portion of the second buffer component being in contact with the spindle.

[0013] Furthermore, the spindle fixing assembly also includes: a support frame, the support frame including a connecting frame and a protective frame, the connecting frame being detachably connected to the machine body, and a fixed bracket being disposed on the connecting frame; the protective frame being connected to the connecting frame and located to the side of the fixed bracket, the extending direction of the protective frame being consistent with the extending direction of the fixed bracket, and at least a portion of the protective frame being in contact with the fixed frame.

[0014] Furthermore, there are two crossbeams, which are spaced apart along the length of the machine body. Each crossbeam includes a first side and a second side that are arranged opposite to each other. The crossbeam fixing assembly includes: a first bracket, one end of which is connected to the machine body and the other end of which is attached to the first side of one of the two crossbeams; and a support rod, the two ends of which abut against the second side of the two crossbeams to support the two crossbeams.

[0015] Furthermore, the crossbeam fixing assembly also includes: one end of the second bracket is connected to the machine body, and the other end of the second bracket is attached to the first side of the other crossbeam among the two crossbeams; there are at least two support rods, and the at least two support rods are spaced apart along the length of the crossbeam.

[0016] Furthermore, the connecting bracket includes: a first frame and a second frame arranged opposite to each other, the first frame and the second frame being connected by a third frame to form a protective space between the first frame, the second frame and the third frame, and the electrical cabinet assembly being disposed within the protective space; the first frame and / or the second frame are fixedly installed on the machine body.

[0017] Furthermore, the protective mechanism also includes: a locking block, which has at least two connecting holes. One end of the locking block is connected to the body through one connecting hole, and the other end of the locking block is connected to the slide saddle on the body through another connecting hole; wherein, the connecting hole is a strip-shaped hole.

[0018] According to another aspect of the present invention, a machine tool is provided, including a body and a protective mechanism, wherein the protective mechanism is detachably disposed on the body, and the protective mechanism is the aforementioned protective mechanism.

[0019] Applying the technical solution of this invention, the protective mechanism is detachably mounted on the machine body. The protective mechanism includes a spindle fixing assembly, a crossbeam fixing assembly, and a connecting bracket. The spindle fixing assembly includes a first protective clamping plate and a second protective clamping plate, with a clamping space between the first and second protective clamping plates for accommodating the spindle. At least a portion of the first and / or at least a portion of the second protective clamping plate is in contact with the spindle. The crossbeam fixing assembly is detachably mounted on the machine body, with at least a portion pressing against the crossbeam of the machine body. The connecting bracket is mounted on the machine body, and the electrical cabinet assembly of the machine body is fixedly mounted on the connecting bracket. This design ensures that the spindle will not shift due to external impact or vibration during hoisting, effectively protecting the spindle's machining accuracy and service life. The close-fitting design ensures the spindle's stability under various transportation conditions, reducing potential internal structural damage caused by spindle swaying. The detachably mounted crossbeam fixing assembly, with at least a portion directly pressing against the crossbeam, effectively suppresses the crossbeam's movement in the X-axis direction. This is crucial for ensuring the overall structural stability of the gantry milling machine during hoisting and transportation, preventing deformation of the crossbeam due to vibration, which could affect the machine's machining performance. The connecting bracket design allows the electrical cabinet assembly to be directly fixed to the machine tool, eliminating the need for separate disassembly and packaging before hoisting, simplifying preparation steps and improving overall hoisting efficiency. Integrated hoisting reduces the risk of the electrical cabinet being handled separately during transportation and avoids electrical connection problems that may arise from improper disassembly or assembly. Since key components such as the spindle, crossbeam, and electrical cabinet are all secured with specialized protective mechanisms, this helps maintain even weight distribution on the gantry milling machine during hoisting, preventing unnecessary swaying or tilting due to center of gravity shift, thus ensuring the safety of the hoisting process and the integrity of the machine tool. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A front view of the protective mechanism assembled with the body according to the present invention is shown;

[0022] Figure 2 A side view of the protective mechanism according to the invention assembled with the body is shown;

[0023] Figure 3 A top view of the protective mechanism and the body according to the present invention is shown;

[0024] Figure 4 A schematic diagram of the main shaft fixing assembly in the protective mechanism according to the present invention is shown;

[0025] Figure 5 A schematic diagram of the structure of the first frame in the protective mechanism according to the present invention is shown;

[0026] Figure 6 A schematic diagram of the structure of the second frame in the protective mechanism according to the present invention is shown;

[0027] Figure 7 A first-view structural schematic diagram of the locking block in the protective mechanism according to the present invention is shown;

[0028] Figure 8 A second-view structural schematic diagram of the locking block in the protective mechanism according to the present invention is shown;

[0029] Figure 9 A schematic diagram of the connecting bracket in the protective mechanism according to the present invention is shown.

[0030] The above figures include the following reference numerals:

[0031] 100. Body; 110. Crossbeam; 120. Saddle; 200. Main shaft fixing assembly; 210. First protective clamp; 220. Second protective clamp; 230. Clamping space; 300. Crossbeam fixing assembly; 400. Connecting bracket; 240. Fixed bracket; 241. Accommodation space; 250. First buffer component; 260. Second buffer component; 270. Support frame; 271. Connecting frame; 272. Protective frame; 310. First bracket; 320. Support rod; 330. Second bracket; 410. First frame; 420. Second frame; 430. Third frame; 500. Locking block; 510. Connecting hole; 600. Lifting assembly. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] As mentioned in the background section, safety is paramount when hoisting existing gantry milling machines. Any impact, vibration, or tilt during hoisting can cause irreversible damage, affecting machining accuracy and service life. Therefore, maintaining relative balance during hoisting is crucial. When securing the machine, components with significant movement must be positioned; otherwise, vibrations from transport vehicles during long-distance operation can cause severe shaking of components such as the spindle and crossbeam, affecting machining accuracy and service life, and potentially causing irreversible damage to their internal structure. The overall hoisting of the machine tool is critical to the layout and efficiency of the entire production line; a well-designed hoisting device can save time and costs and improve work efficiency. Therefore, to solve the aforementioned technical problems, the protective mechanism provided in this application is detachably mounted on the machine body 100. The protective mechanism includes a spindle fixing assembly 200, a crossbeam fixing assembly 300, and a connecting bracket 400. The spindle fixing assembly 200 clamps the spindle using a first protective clamp 210 and a second protective clamp 220 to prevent spindle wobbling. The crossbeam fixing assembly 300 presses down on the crossbeam, and the connecting bracket 400 fixes the electrical cabinet assembly. This prevents the spindle, crossbeam, and other components from violently shaking due to vibrations from transport vehicles during long-distance operation, which could affect their machining accuracy and service life, and cause irreversible damage to their internal structure. By fixing the electrical cabinet assembly as a whole onto the machine tool, integrated hoisting is achieved, eliminating the need for separate disassembly and transport of the electrical cabinet. This individual protection of each component greatly improves the safety and efficiency of the machine tool during hoisting.

[0034] Please refer to Figures 1 to 9 This application provides a protective mechanism detachably mounted on a machine body 100. The protective mechanism includes: a spindle fixing assembly 200, which includes a first protective clamping plate 210 and a second protective clamping plate 220. A clamping space 230 for accommodating the spindle is provided between the first protective clamping plate 210 and the second protective clamping plate 220. At least a portion of the first protective clamping plate 210 and / or at least a portion of the second protective clamping plate 220 is in contact with the spindle; a crossbeam fixing assembly 300, detachably mounted on the machine body 100, with at least a portion of the crossbeam fixing assembly 300 pressing against the crossbeam of the machine body 100; and a connecting bracket 400, mounted on the machine body 100, with the electrical cabinet assembly of the machine body 100 fixedly mounted on the connecting bracket 400.

[0035] According to the protective mechanism provided in this application, it is detachably mounted on the machine body 100. The protective mechanism includes a spindle fixing assembly 200, a crossbeam fixing assembly 300, and a connecting bracket 400. The spindle fixing assembly 200 includes a first protective clamping plate 210 and a second protective clamping plate 220. A clamping space 230 for accommodating the spindle is provided between the first protective clamping plate 210 and the second protective clamping plate 220. At least a portion of the first protective clamping plate 210 and / or at least a portion of the second protective clamping plate 220 is in contact with the spindle. The crossbeam fixing assembly 300 is detachably mounted on the machine body 100. At least a portion of the crossbeam fixing assembly 300 is pressed against the crossbeam of the machine body 100. The connecting bracket 400 is mounted on the machine body 100, and the electrical cabinet assembly of the machine body 100 is fixedly mounted on the connecting bracket 400. This design ensures that the spindle will not shift due to external impact or vibration during hoisting, effectively protecting the machining accuracy and service life of the spindle. The fitted design ensures the stability of the spindle under various transportation conditions, reducing potential internal structural damage caused by spindle wobbling. The crossbeam fixing assembly 300 is detachably mounted on the machine body 100, at least partially pressing directly onto the crossbeam, effectively suppressing crossbeam movement in the X-axis direction. This is crucial for ensuring the overall structural stability of the gantry milling machine during hoisting and transportation, preventing deformation of the crossbeam due to vibration, which could affect the machine tool's machining performance. The design of the connecting bracket 400 allows the electrical cabinet assembly to be directly fixed to the machine tool, eliminating the need for separate disassembly and packaging of the electrical cabinet before hoisting, simplifying pre-hoisting preparations and improving overall hoisting efficiency. Integrated hoisting reduces the individual risks associated with the electrical cabinet during transportation and avoids electrical connection problems that may arise from improper disassembly or assembly of the electrical cabinet. Because key components such as the spindle, crossbeam, and electrical cabinet are all secured by specialized protective mechanisms, this helps to maintain the even distribution of the gantry machine tool's weight during hoisting, preventing unnecessary swaying or tilting due to a shift in the center of gravity during hoisting, thus ensuring the safety of the hoisting process and the integrity of the machine tool.

[0036] Specifically, such as Figure 4As shown, the spindle fixing assembly 200 further includes: a fixing bracket 240, which has a receiving space 241 extending along the axis of the spindle. A first protective clamping plate 210 and a second protective clamping plate 220 are respectively mounted on the fixing bracket 240, and a clamping space 230 communicates with the receiving space 241. The fixing bracket 240 is detachably mounted on the machine body 100. The receiving space 241 inside the fixing bracket 240 extends along the axis of the spindle and communicates with the clamping space 230 formed by the first protective clamping plate 210 and the second protective clamping plate 220, enabling precise positioning of the spindle. Simultaneously, the surrounding material or design effectively absorbs vibrations and impacts during transportation, protecting the spindle from damage and ensuring its machining accuracy and service life remain unaffected. The design of the fixing bracket 240 enhances the structural stability of the entire spindle fixing assembly 200, maintaining the relative fixation of the spindle even under complex transportation conditions. This reduces potential safety hazards caused by spindle displacement and ensures the overall safety of the gantry machine tool during hoisting and transportation. The fixed bracket 240 is detachably mounted on the machine body 100, meaning that after the gantry machine tool reaches its destination, the spindle fixing assembly 200 can be quickly removed, restoring the machine tool to its normal operating state. This flexibility not only improves the efficiency of the protective mechanism but also facilitates the maintenance and reuse of the protective assembly, reducing equipment maintenance costs. The design of the fixed bracket 240 takes into account compatibility with the machine body 100. Through standardized connection methods, it can be applied to twin-spindle gantry machine tools of different models and sizes, improving the versatility of the protective mechanism and reducing the need to design dedicated protective components for each machine tool.

[0037] In the embodiments provided in this application, the first protective clamp 210 and the second protective clamp 220 are staggered along the extension direction of the fixed bracket 240. This staggered arrangement increases the contact area and angle between the spindle and the protective clamps, allowing the spindle to be supported from multiple directions when subjected to external forces. This significantly enhances the spindle's fixation effect and effectively prevents displacement or swaying during hoisting and transportation. This staggered structure better disperses and absorbs the impact and vibration generated during transportation. The interlacing of the first protective clamp 210 and the second protective clamp 220 forms a truss-like stable structure, thereby improving the stability of the entire protective mechanism. Due to the staggered arrangement of the first protective clamp 210 and the second protective clamp 220, they can more closely conform to the shape of the spindle, providing more precise fixation regardless of whether it is cylindrical or asymmetrical, reducing gaps caused by shape mismatch, and further ensuring the safety of the spindle. The staggered protective clamps can accommodate spindles of different sizes and shapes, improving the versatility and adaptability of the protective mechanism. This allows the same set of protective components to be applied to various models of twin-spindle gantry milling machines, reducing the need and cost of designing and customizing protective mechanisms for different machine tools.

[0038] In practical implementation, the spindle fixing assembly 200 further includes: a first buffer component 250, disposed on the first protective clamp 210, with at least a portion of the first buffer component 250 in contact with the spindle; and a second buffer component 260, disposed on the second protective clamp 220, with at least a portion of the second buffer component 260 in contact with the spindle. The first buffer component 250 and the second buffer component 260 are in direct contact with the spindle, absorbing the impact force from vehicle vibration or collisions during transportation, significantly reducing the displacement and deformation of the spindle due to vibration, and protecting the spindle's machining accuracy from being affected. The buffer components avoid direct hard contact between the spindle and the protective clamp, preventing damage to the spindle's surface structure from direct impact by the clamp under sudden large vibrations, maintaining the spindle's integrity, and extending its service life. The buffer components are typically made of easily replaceable materials (such as rubber, foam plastic, etc.), allowing for easy replacement after long-term use or damage, reducing maintenance costs and time, while maintaining the long-term effectiveness of the spindle fixing assembly.

[0039] Furthermore, the spindle fixing assembly 200 also includes a support frame 270, which includes a connecting frame 271 and a protective frame 272. The connecting frame 271 is detachably connected to the machine body 100, and a fixing bracket 240 is disposed on the connecting frame 271. The protective frame 272 is connected to the connecting frame 271 and located to the side of the fixing bracket 240, with the extension direction of the protective frame 272 consistent with the extension direction of the fixing bracket 240. At least a portion of the protective frame 272 is in contact with the fixing bracket 240. The support frame 270 is detachably connected to the machine body 100 via the connecting frame 271, while the protective frame 272 is connected to the connecting frame 271 and located to the side of the fixing bracket 240. This design not only ensures a reliable connection between the spindle fixing assembly 200 and the machine body 100, but also provides lateral support for the spindle and its fixing structure through the protective frame 272, thereby improving the structural stability of the entire fixing assembly. The protective frame 272 extends in the same direction as the fixed bracket 240 and is at least partially in contact with the spindle, effectively preventing lateral displacement of the spindle during hoisting. This design is crucial for preventing damage to the spindle from lateral forces, ensuring its safety during transportation. The protective frame 272, in contact with the fixed bracket 240, absorbs some of the impact energy when the spindle is subjected to accidental impact, acting as a buffer and further protecting the spindle from direct damage, maintaining its machining accuracy and service life. The entire spindle fixing assembly 200 improves spindle stability while also optimizing the safety of the hoisting process. The structural design of the support frame 270 makes the spindle less prone to swaying during hoisting, reducing the risk of accidents caused by spindle instability.

[0040] In practical applications, there are two crossbeams 110, spaced apart along the length of the machine body 100. Each crossbeam includes a first side and a second side arranged opposite to each other. The crossbeam fixing assembly 300 includes: a first bracket 310, one end of which is connected to the machine body 100, and the other end which is attached to the first side of one of the two crossbeams; and a support rod 320, both ends of which abut against the second sides of the two crossbeams to support them. The first bracket 310 is at least partially directly attached to the first side of the crossbeam 110, effectively reducing the crossbeam's movement in the X-axis direction. The two ends of the support rod 320 abut against the second sides of the two crossbeams 110, forming a stable support structure spanning the two crossbeams, further restricting the movement of the crossbeams and enhancing their stability. Especially during long-distance transportation and hoisting, this prevents deformation or displacement of the crossbeams due to vibration, protecting the machining accuracy and structural safety of the gantry milling machine. The introduction of support rods 320 restricts the crossbeam 110 on both sides, improving its stability and strengthening the overall structure of the gantry machine tool. During hoisting and transportation, support rods 320 provide additional rigid support, reducing overall swaying of the gantry machine tool due to external impacts or vibrations, ensuring safety during hoisting. The crossbeam fixing assembly 300 is designed for ease of operation; the installation and removal of the first bracket 310 and support rods 320 are quick, requiring no complex tools or specialized knowledge. Operators can quickly fix and release the crossbeam, improving the efficiency of the gantry machine tool during hoisting and recovery, and reducing production line downtime. Because the crossbeam fixing assembly 300 is reusable, additional costs are reduced during each hoisting and transportation process. The design of the support rod 320 makes full use of the structural characteristics of the gantry machine tool, avoids additional modifications to the crossbeam, reduces the maintenance requirements of the machine tool, and in the long run, this fixing method can save maintenance and transportation costs for enterprises and improve economic efficiency.

[0041] In the embodiments provided in this application, such as Figure 5 and Figure 6As shown, the crossbeam fixing assembly 300 also includes: a second bracket 330, one end of which is connected to the machine body 100, and the other end of which is abutted against the first side of the other crossbeam; and at least two support rods 320, which are spaced apart along the length of the crossbeam. The cooperation of the second bracket 330 and the support rods 320 restricts the position of the other crossbeam, effectively preventing lateral displacement and rotation of the crossbeam during hoisting and transportation, thus improving its stability. Simultaneous fixing at both ends distributes the force on the crossbeam more evenly, reducing local stress concentration and preventing deformation or damage due to uneven stress. The presence of at least two support rods 320 further enhances the rigidity of the crossbeam, reducing swaying caused by vehicle vibration or road bumps during transportation, ensuring that the geometry and dimensions of the crossbeam remain unchanged during hoisting and transportation, thereby guaranteeing the machining accuracy of the gantry milling machine. With fixed ends and intermediate support, the crossbeam fixing assembly 300 provides an effective safety protection measure, reducing the risk of crossbeam displacement or deformation during hoisting and transportation, protecting the core components of the gantry machine tool from damage, and ensuring the long-term stable operation of the machine tool.

[0042] In this application, as Figure 8 As shown, the connecting bracket 400 includes: a first frame 410 and a second frame 420 disposed opposite to each other, connected by a third frame 430 to form a protective space for accommodating the electrical cabinet assembly between the first frame 410, the second frame 420, and the third frame 430; the first frame 410 and / or the second frame 420 are fixedly mounted on the body 100. The protective space jointly constructed by the first frame 410, the second frame 420, and the third frame 430 can protect the electrical cabinet assembly from multiple directions, avoiding the impact or vibration of external forces during hoisting and transportation, and ensuring the stability and safety of the electrical components inside the cabinet. By setting the third frame 430 as a connector, the connection between the first frame 410 and the second frame 420 is more stable, forming a triangular structure. This structure can significantly enhance the overall stability of the connecting bracket 400 and effectively prevent the electrical cabinet from shaking due to structural instability during hoisting. The detachable design of the connecting bracket 400 means that the first frame 410 and / or the second frame 420 can be quickly and securely installed on the body 100 without complicated tools and long operation time, simplifying the hoisting preparation process.

[0043] like Figure 7 and Figure 8As shown, the protective mechanism also includes a locking block 500, which has at least two connecting holes 510. One end of the locking block 500 is connected to the machine body 100 through one connecting hole 510, and the other end of the locking block 500 is connected to the slide saddle on the machine body 100 through the other connecting hole 510. The connecting holes 510 are strip-shaped. The locking block 500 is connected to the machine body 100 through the strip-shaped connecting hole 510 by a locking element (such as a bolt), and simultaneously connected to the slide saddle through the other connecting hole 510. This ensures the stability of the slide saddle during hoisting and transportation, preventing its movement in the Y-axis direction, thereby protecting the slide saddle and its machined components from damage and maintaining machining accuracy. The strip-shaped design of the connecting hole 510 means that the locking element can be adjusted within a certain range along the direction of the strip-shaped hole to accommodate minor displacements that the slide saddle may experience due to machining requirements or machine tool adjustments, ensuring that the slide saddle is stably and properly fixed under various conditions. The use of locking block 500 simplifies the fixing process of the slide saddle and secures it with locking components, eliminating the need for complex operations or additional tools, saving preparation time before hoisting and improving overall work efficiency. The design of the strip-shaped connecting hole 510 increases the compatibility and flexibility of locking block 500, enabling it to adapt to different models and sizes of gantry machine tools, as well as the fixing requirements of the slide saddle in different positions, improving the versatility and adaptability of the protective mechanism. Through precise fixing and adjustment functions, locking block 500 effectively reduces the swaying and collision of the slide saddle during hoisting and transportation, which is crucial for ensuring the safe transportation of the gantry machine tool in complex environments, avoiding production line stoppages or reduced work efficiency due to slide saddle damage. Locking block 500 consists of two plates connected in an L-shape, each plate having a connecting hole 510 for multi-directional protection of the slide saddle.

[0044] This application also provides a machine tool, including a body 100 and a protective mechanism, the protective mechanism being detachably mounted on the body 100, and the protective mechanism being the protective mechanism described in the above embodiment.

[0045] The protective mechanism provided in this application secures the two spindles by designing a spindle fixing assembly, while retaining buffer space to prevent severe spindle shaking caused by vibrations from the transport vehicle during long-distance operation, which would affect machining accuracy and service life. This achieves the Z-axis fixation. Due to the significant movement of the crossbeam in the X-axis direction, a crossbeam fixing bracket and crossbeam fixing rod are designed to fix the crossbeam. Similarly, the significant movement of the slide saddle in the Y-axis direction is addressed by a slide saddle locking block, which fixes the slide saddle in the Y-axis direction. Thus, the main components of the dual-spindle gantry milling machine that are prone to movement are positioned, preventing severe shaking of the spindles, crossbeams, and other components caused by vibrations from the transport vehicle during long-distance operation, which would affect machining accuracy, service life, and cause irreversible damage to their internal structure.

[0046] The electrical cabinet is fixed to the machine tool as a whole by using the electrical cabinet fixing bracket assembly, which enables integrated hoisting without the need for separate disassembly and transportation of the electrical cabinet; the original front and rear door anti-collision bars of the machine tool are removed and the original threaded holes are used to install the crossbeam fixing rods, which requires relatively few disassembly and assembly parts, saving time and cost in the hoisting process.

[0047] During installation and fixing, since there is a set of slides, saddles, crossbeams, and other components on both sides of the machine tool, and the two spindles are fixed at diagonal positions, the overall weight distribution of the machine tool is even. After the machine tool is fixed in place, it is lifted from the two lifting assemblies at 600mm to ensure the overall stability of the machine tool during the lifting process.

[0048] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0049] According to the protective mechanism provided in this application, it is detachably mounted on the machine body 100. The protective mechanism includes a spindle fixing assembly 200, a crossbeam fixing assembly 300, and a connecting bracket 400. The spindle fixing assembly 200 includes a first protective clamping plate 210 and a second protective clamping plate 220. A clamping space 230 for accommodating the spindle is provided between the first protective clamping plate 210 and the second protective clamping plate 220. At least a portion of the first protective clamping plate 210 and / or at least a portion of the second protective clamping plate 220 is in contact with the spindle. The crossbeam fixing assembly 300 is detachably mounted on the machine body 100. At least a portion of the crossbeam fixing assembly 300 is pressed against the crossbeam of the machine body 100. The connecting bracket 400 is mounted on the machine body 100, and the electrical cabinet assembly of the machine body 100 is fixedly mounted on the connecting bracket 400. This design ensures that the spindle will not shift due to external impact or vibration during hoisting, effectively protecting the machining accuracy and service life of the spindle. The fitted design ensures the stability of the spindle under various transportation conditions, reducing potential internal structural damage caused by spindle wobbling. The crossbeam fixing assembly 300 is detachably mounted on the machine body 100, at least partially pressing directly onto the crossbeam, effectively suppressing crossbeam movement in the X-axis direction. This is crucial for ensuring the overall structural stability of the gantry milling machine during hoisting and transportation, preventing deformation of the crossbeam due to vibration, which could affect the machine tool's machining performance. The design of the connecting bracket 400 allows the electrical cabinet assembly to be directly fixed to the machine tool, eliminating the need for separate disassembly and packaging of the electrical cabinet before hoisting, simplifying pre-hoisting preparations and improving overall hoisting efficiency. Integrated hoisting reduces the individual risks associated with the electrical cabinet during transportation and avoids electrical connection problems that may arise from improper disassembly or assembly of the electrical cabinet. Because key components such as the spindle, crossbeam, and electrical cabinet are all secured by specialized protective mechanisms, this helps to maintain the even distribution of the gantry machine tool's weight during hoisting, preventing unnecessary swaying or tilting due to a shift in the center of gravity during hoisting, thus ensuring the safety of the hoisting process and the integrity of the machine tool.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A protective mechanism, detachably mounted on the body (100), characterized in that, The protective mechanism includes: A spindle fixing assembly (200) includes a first protective clamping plate (210) and a second protective clamping plate (220). A clamping space (230) for accommodating the spindle is provided between the first protective clamping plate (210) and the second protective clamping plate (220). At least a portion of the first protective clamping plate (210) and / or at least a portion of the second protective clamping plate (220) are in contact with the spindle. A crossbeam fixing assembly (300) is detachably mounted on the body (100), and at least a portion of the crossbeam fixing assembly (300) is pressed against the crossbeam of the body (100); A connecting bracket (400) is disposed on the body (100), and the electrical cabinet assembly of the body (100) is fixedly disposed on the connecting bracket (400); The spindle fixing assembly (200) further includes: a fixing bracket (240), the fixing bracket (240) having a receiving space (241) extending along the axis of the spindle, the first protective clamping plate (210) and the second protective clamping plate (220) being respectively disposed on the fixing bracket (240), the clamping space (230) communicating with the receiving space (241); the fixing bracket (240) is detachably disposed on the machine body (100); The spindle fixing assembly (200) further includes: a support frame (270), the support frame (270) includes a connecting frame (271) and a protective frame (272), the connecting frame (271) is detachably connected to the machine body (100), and the fixing bracket (240) is disposed on the connecting frame (271); The protective frame (272) is connected to the connecting frame (271) and located on the side of the fixed bracket (240). The extending direction of the protective frame (272) is consistent with the extending direction of the fixed bracket (240). At least a portion of the protective frame (272) is in contact with the fixed bracket (240). The connecting bracket (400) includes: a first frame (410) and a second frame (420) disposed opposite to each other, the first frame (410) and the second frame (420) being connected by a third frame (430) to form a protective space between the first frame (410), the second frame (420) and the third frame (430), and the electrical cabinet assembly being disposed within the protective space; the first frame (410) and / or the second frame (420) are fixedly installed on the body (100).

2. The protective mechanism according to claim 1, characterized in that, Along the extending direction of the fixed bracket (240), the first protective clamp (210) and the second protective clamp (220) are staggered.

3. The protective mechanism according to claim 1, characterized in that, The spindle fixing assembly (200) also includes: A first buffer component (250) is disposed on the first protective clamp (210), and at least a portion of the first buffer component (250) is in contact with the main shaft; A second buffer component (260) is disposed on the second protective clamp (220), and at least a portion of the second buffer component (260) is in contact with the spindle.

4. The protective mechanism according to claim 1, characterized in that, There are two crossbeams, which are spaced apart along the length of the body (100). Each crossbeam includes a first side and a second side that are arranged opposite to each other. The crossbeam fixing assembly (300) includes: The first bracket (310) has one end connected to the body (100) and the other end attached to the first side of one of the two crossbeams; The support rod (320) has two ends that abut against the second side surfaces of the two crossbeams to support the two crossbeams.

5. The protective mechanism according to claim 4, characterized in that, The beam fixing assembly (300) also includes: The second bracket (330) has one end connected to the body (100) and the other end attached to the first side of the other of the two crossbeams; There are at least two support rods (320), and at least two support rods (320) are spaced apart along the length of the crossbeam.

6. The protective mechanism according to claim 1, characterized in that, The protective mechanism also includes: A locking block (500) is provided with at least two connecting holes (510). One end of the locking block (500) is connected to the body (100) through one of the connecting holes (510), and the other end of the locking block (500) is connected to the slide saddle on the body (100) through the other connecting hole (510). The connecting hole (510) is a strip-shaped hole.

7. A machine tool, comprising a body (100) and a protective mechanism, said protective mechanism being detachably mounted on the body (100), characterized in that, The protective mechanism is the same as any one of claims 1 to 6.

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