Bed structure and machine tool

Abstract

The utility model provides a kind of bed structure and machine tool, bed structure includes bed main body, installation component, linear motor and two ball screws, the upper surface of bed main body is provided with installation groove;Installation component is set in installation groove, it includes support piece and the two installation pieces respectively located the two sides of support piece and interval setting, installation passageway is formed between support piece and installation piece;Linear motor is set in installation groove and is located on installation component, support piece is used to support linear motor, two installation pieces are respectively connected with linear motor;Two ball screws are correspondingly set in two installation passageways respectively.By integrated bed structure of linear motor and ball screw double drive mode, not only provide the high degree of processing flexibility, also significantly enhance the rigidity of machine tool, stability.Furthermore, the utility model solves the technical problem that the machine tool in the prior art is difficult to meet different processing requirements of transmission mode, leading to poor flexibility.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and more specifically, to a bed structure and a machine tool. Background Technology

[0002] Currently, in the field of metal profile processing, especially for long profiles such as aluminum alloy doors and windows, rail transit components, photovoltaic frames, and new energy vehicle battery trays, traditional single-head machines can no longer meet the market's urgent demand for "multiple varieties, small batches, and fast delivery." These machines mainly rely on manual clamping multiple times, which is not only inefficient but also prone to introducing errors during turning and repositioning, seriously affecting processing accuracy and production cycle. Among existing technologies, double-head profile CNC machine tools, as a highly efficient solution, can complete composite processes such as sawing, drilling, tapping, and milling in a single positioning operation due to their synchronous left and right and counter-tapping characteristics, significantly improving production efficiency and becoming the "efficiency leader" in the industry.

[0003] However, dual-head profile CNC machine tools on the market generally face the problem of a single transmission scheme. Although traditional ball screws are low in cost and have good rigidity, they are limited by critical speed and require additional mating supports for long-stroke applications. This not only increases the complexity and cost of the machine tool, but also brings accuracy problems such as thermal expansion and backlash. On the other hand, although linear motor drives can provide high feed rates and accelerations and achieve micron-level positioning accuracy, their high cost, including additional components such as magnetic tracks, linear scales, and water cooling systems, significantly increases the overall cost, limiting their adoption in cost-sensitive markets. Utility Model Content

[0004] The main objective of this invention is to provide a bed structure and machine tool to solve the technical problem that existing machine tools are unable to meet different processing requirements in terms of transmission methods, resulting in poor flexibility.

[0005] To achieve the above objectives, according to one aspect of the present invention, a bed structure is provided, applicable to machine tools. The bed structure includes: a bed body, the upper surface of which is provided with a mounting groove; a mounting assembly disposed within the mounting groove, the mounting assembly including a support member and two mounting members, the two mounting members being located on both sides of the support member and spaced apart, forming a mounting channel between the support member and the mounting members; a linear motor and two ball screws, the linear motor being disposed within the mounting groove and on the mounting assembly, the support member supporting the linear motor, the two mounting members being connected to the linear motor respectively; and the two ball screws being respectively disposed in two mounting channels.

[0006] Furthermore, the bed structure also includes: two support components, which are disposed in the mounting slot and located at one end of the mounting channel, and one end of the ball screw is connected to a screw support seat. The support components are used to connect with the screw support seat to support it.

[0007] Furthermore, the support assembly includes: two mounting protrusions arranged parallel to each other, and multiple first mounting holes provided on the mounting protrusions. The multiple first mounting holes are arranged sequentially at intervals along the extension direction of the mounting protrusions, and the lead screw support is connected to the support assembly through the multiple first mounting holes.

[0008] Furthermore, the mounting component is provided with multiple second mounting holes, which are arranged sequentially and at intervals along the extension direction of the mounting component. The linear motor is connected to the mounting assembly through the multiple second mounting holes; and / or, a reinforcing member is provided on the inner wall of the bed body at a position corresponding to the bottom of the mounting groove.

[0009] Furthermore, the bed structure also includes: a limiting groove, which is set on the upper surface of the bed body and located on one side of the groove opening of the mounting groove; a guide rail, which is set in the limiting groove, and a plurality of third mounting holes are provided on the bottom wall of the limiting groove. The plurality of third mounting holes are spaced apart along the extension direction of the limiting groove, and the guide rail is connected to the bed body through the plurality of third mounting holes; wherein, the limiting groove has a first preset height h1 and a first preset width a1, the first preset height h1 satisfies: 3mm≤h1≤7mm, and the first preset width a1 satisfies: 40mm≤a1≤48mm.

[0010] Furthermore, the bed structure also includes: an adjustment groove, which is set on the upper surface of the bed body and located between the limiting groove and the mounting groove. The adjustment groove is connected to the limiting groove, and the side wall of the adjustment groove away from the limiting groove is an inclined surface; multiple adjustment blocks, with multiple fourth mounting holes spaced apart on the bottom wall of the adjustment groove along its extension direction, and the multiple adjustment blocks are connected to the multiple fourth mounting holes one by one, with each adjustment block abutting against the guide rail; wherein, along the direction from the groove opening to the groove bottom, the width of the adjustment groove gradually decreases; the adjustment groove has a second preset height h2 and a second preset width a2, the second preset height h2 satisfying: 10mm≤h2≤16mm, and the second preset width a2 satisfying: 12mm≤a2≤20mm.

[0011] Furthermore, the bed body has a hollow structure, and the bed body structure also includes: a plurality of first reinforcing ribs, which are arranged sequentially and spaced apart in the inner cavity of the bed body along a first direction; a plurality of second reinforcing ribs, which are arranged sequentially and spaced apart in the inner cavity of the bed body along a second direction, and the plurality of first reinforcing ribs and the plurality of second reinforcing ribs are connected in an alternating manner to form a plurality of sequentially connected hollow cavities in the bed body; wherein the first direction and the second direction are arranged perpendicular to each other.

[0012] Furthermore, the bed structure also includes: multiple reserved parts, which are respectively set on the side of the bed body, and multiple fifth mounting holes are provided at intervals on the reserved parts for connection with sheet metal parts.

[0013] Furthermore, the bed structure also includes: a chip removal component, which is set on the side of the bed body. The top and bottom of the chip removal component are respectively provided with a chip inlet and a chip outlet, which are connected to each other so that waste chips are discharged from the chip outlet through the chip inlet; wherein, a fixing plate is provided in the chip inlet, and the fixing plate has a preset angle b with the horizontal direction, and the preset angle b satisfies: 20°≤b≤50°.

[0014] According to another aspect of the present invention, a machine tool is provided, including the bed structure mentioned above.

[0015] The present invention provides a bed structure suitable for machine tools. The bed structure includes a bed body, a mounting assembly, a linear motor, and two ball screws. The upper surface of the bed body has a mounting groove. The mounting assembly is disposed within the mounting groove and includes a support member and two mounting members. The two mounting members are located on opposite sides of the support member and spaced apart, forming a mounting channel between the support member and the mounting members. The linear motor is disposed within the mounting groove and on the mounting assembly. The support member supports the linear motor, and the two mounting members are connected to the linear motor. The two ball screws are respectively disposed within the two mounting channels. The bed body has a hollow multi-cavity structure.

[0016] By incorporating mounting grooves on the upper surface of the machine bed and combining them with a support component and two mounting members to form a mounting assembly, this design allows users to choose between linear motors, ball screws, or a hybrid transmission mode combining both, depending on actual machining needs. This enables the machine tool to find the optimal balance between high precision, high speed, and low cost, adapting to machining requirements in different scenarios and providing users with more diverse configuration options. This machine bed structure, integrating both linear motor and ball screw dual-drive modes, not only provides high machining flexibility but also significantly enhances the machine tool's rigidity and stability through optimized design. This solves the technical problem of existing machine tools struggling to meet diverse machining needs with varying transmission methods, resulting in poor flexibility.

[0017] Furthermore, the main body of the machine bed adopts a hollow multi-cavity structure design, which not only helps to reduce the overall weight of the machine bed and improve dynamic response speed, but also effectively reduces the overall weight and enhances dynamic response performance while ensuring structural strength, and significantly enhances the bending, torsional resistance and overall rigidity of the machine bed. This structure is particularly suitable for bearing gravity in the Z-axis direction and torque generated during cutting, ensuring that the machine bed can still operate stably and maintain high-precision machining under various complex machining conditions. At the same time, the additional mounting channels and supports not only ensure the precise installation of the linear motor and ball screw, but also enhance the stability of the machine bed structure through a distributed load-sharing mechanism. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A first-view structural schematic diagram of an embodiment of the bed structure according to the present invention is shown;

[0020] Figure 2 A second-view structural schematic diagram of an embodiment of the bed structure according to the present invention is shown;

[0021] Figure 3 A third-view structural schematic diagram of an embodiment of the bed structure according to the present invention is shown;

[0022] Figure 4 A partial cross-sectional view is shown according to an embodiment of the bed structure of this utility model;

[0023] Figure 5 A schematic diagram of the bottom structure provided according to an embodiment of the bed structure of this utility model is shown.

[0024] The above figures include the following reference numerals:

[0025] 1. Linear motor; 2. Ball screw; 3. Screw support; 4. Guide rail;

[0026] 10. Bed body; 11. Mounting slot; 12. Reinforcing member; 13. Limiting slot; 130. Third mounting hole; 14. Adjustment slot; 140. Fourth mounting hole; 15. Adjusting block; 16. First reinforcing rib; 17. Second reinforcing rib; 18. Hollow cavity; 19. Reserved part; 190. Fifth mounting hole;

[0027] 20. Mounting component; 21. Support component; 22. Mounting component; 220. Second mounting hole; 23. Mounting channel;

[0028] 30. Support component; 31. Mounting protrusion; 32. First mounting hole;

[0029] 40. Chip conveyor; 41. Chip inlet; 42. Chip outlet; 43. Fixing plate. Detailed Implementation

[0030] 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.

[0031] To address the technical problem that existing machine tools often lack flexibility due to their inability to meet diverse processing requirements through different transmission methods, this invention provides a bed structure and a machine tool.

[0032] Please refer to Figures 1 to 5 As shown, one aspect of the technical solution of this utility model provides a bed structure suitable for machine tools. The bed structure includes a bed body 10, a mounting assembly 20, a linear motor 1, and two ball screws 2. The upper surface of the bed body 10 is provided with a mounting groove 11. The mounting assembly 20 is disposed in the mounting groove 11 and includes a support member 21 and two mounting members 22. The two mounting members 22 are respectively located on both sides of the support member 21 and are spaced apart, forming a mounting channel 23 between the support member 21 and the mounting members 22. The linear motor 1 is disposed in the mounting groove 11 and on the mounting assembly 20. The support member 21 is used to support the linear motor 1, and the two mounting members 22 are respectively connected to the linear motor 1. The two ball screws 2 are respectively disposed in the two mounting channels 23.

[0033] By providing mounting grooves 11 on the upper surface of the bed body 10, and combining the support member 21 with two mounting members 22 to form a mounting assembly 20, this design allows users to choose between linear motor 1 or ball screw 2, or a hybrid transmission mode combining both, according to actual machining needs. This enables the machine tool to find the optimal balance between high precision, high speed, and low cost, adapting to machining requirements in different scenarios and providing users with more diverse configuration options. This bed structure integrating both linear motor 1 and ball screw 2 transmission modes not only provides high machining flexibility but also significantly enhances the rigidity and stability of the machine tool through optimized design, thereby solving the technical problem of poor flexibility caused by existing machine tools' inability to meet different machining needs with varying transmission methods.

[0034] Furthermore, the bed body 10 adopts a hollow multi-cavity structure design, which not only helps to reduce the overall weight of the bed and improve dynamic response speed, but also effectively reduces the overall weight and enhances dynamic response performance while ensuring structural strength, and significantly enhances the bed's bending and torsional resistance and overall rigidity. This structure is particularly suitable for bearing gravity in the Z-axis direction and torque generated during cutting, ensuring that the bed can still operate stably and maintain high-precision machining under various complex machining conditions. At the same time, the additional mounting channel 23 and support 21 not only ensure the precise installation of the linear motor 1 and ball screw 2, but also enhance the stability of the bed structure through a distributed load-sharing mechanism.

[0035] In this embodiment, the bed structure also includes two support components 30. The two support components 30 are disposed in the mounting groove 11 and are located at one end of the mounting channel 23. One end of the ball screw 2 is connected to the screw support seat 3. The support components 30 are used to connect with the screw support seat 3 to support it.

[0036] The support assembly 30, directly connected to the lead screw support seat 3, provides a stable support point, especially at one end of the ball screw 2. This helps reduce vibration and wobbling of the lead screw during high-speed rotation, thereby improving the stability and reliability of the entire transmission system. Furthermore, it effectively balances the load on the ball screw 2, preventing deformation or wear caused by uneven load distribution. This is particularly important for long-stroke applications, as uniform support throughout the stroke significantly extends the lead screw's service life and reduces maintenance costs.

[0037] As can be seen, the integrated design of the support component 30 simplifies the installation process of the ball screw 2, making the initial installation and subsequent adjustments of the screw easier and faster. This not only reduces machine tool assembly time but also lowers the requirements for professional technicians, improving production efficiency. Furthermore, it avoids interference with the mounting surface of the linear motor 1; this structure not only effectively avoids the mounting area of ​​the linear motor 1 but also provides a stable mounting foundation for the screw support 3.

[0038] In this embodiment, the support component 30 includes two mounting protrusions 31, which are arranged parallel to each other. Each mounting protrusion 31 is provided with a plurality of first mounting holes 32, which are arranged sequentially at intervals along the extending direction of the mounting protrusion 31. The lead screw support 3 is connected to the support component 30 through the plurality of first mounting holes 32.

[0039] The multiple first mounting holes 32 allow for fine-tuning of the ball screw support 3 on the mounting protrusions 31, resulting in more precise positioning. This is crucial for ensuring the straightness and stable operation of the ball screw 2, contributing to improved machining accuracy and extended screw life. Furthermore, the combination of the mounting protrusions 31 and the first mounting holes 32 constitutes a modular part of the bed structure. This modular design is not only applicable to the ball screw 2 but can theoretically also accommodate other components with similar shapes and installation requirements, improving the versatility and adaptability of the bed structure.

[0040] It is evident that this design of the support component 30 not only simplifies the installation and adjustment process of the ball screw 2 and enhances the rigidity and stability of the machine bed, but also improves the maintenance efficiency of the machine tool, demonstrating good modularity and versatility, and has a significant promoting effect on improving overall machining accuracy and production efficiency.

[0041] In this embodiment, the mounting member 22 is provided with a plurality of second mounting holes 220, which are arranged sequentially at intervals along the extension direction of the mounting member 22. The linear motor 1 is connected to the mounting assembly 20 through the plurality of second mounting holes 220.

[0042] The arrangement of multiple second mounting holes 220 allows the linear motor 1 to be precisely fixed to the mounting assembly 20. Simultaneously, this hole distribution allows for fine-tuning of the motor's position to ensure optimal parallelism and distance from the magnetic track, thereby improving the transmission accuracy and efficiency of the linear motor 1. This design significantly reduces uncertainties during motor installation, laying the foundation for the efficient operation of the linear motor 1.

[0043] In this embodiment, a reinforcing member 12 is provided on the inner wall of the bed body 10 at a position corresponding to the bottom of the mounting groove 11. The reinforcing member 12 is a reinforcing plate with a thickness of 70mm.

[0044] The reinforcement 12, particularly its position corresponding to the bottom of the mounting slot 11, helps to distribute the load and significantly enhances the stability of the bed body 10 in this critical area. This is because the bed bears a high dynamic load when using the linear motor 1, and the reinforcement 12 can effectively distribute these loads, reduce deformation caused by external forces or cutting forces, and ensure that the machine tool maintains high precision even at high speeds.

[0045] Furthermore, the reinforcing member 12 not only improves structural strength but also mitigates thermal deformation of the machine bed through its unique layout. The position and shape design of the reinforcing member 12 allow the machine bed to better resist stress concentration caused by thermal expansion, helping to maintain the installation accuracy of the linear motor 1 under different temperature conditions and reducing machining errors caused by thermal deformation. The use of the second mounting hole 220 and the reinforcing member 12 embodies the modular design concept of the machine bed structure. This modular design allows users to select the most suitable installation scheme according to different machining requirements and the model of the linear motor 1, improving the adaptability and expandability of the machine tool.

[0046] It is evident that by setting multiple second mounting holes 220 on the mounting component 22 and adding reinforcing components 12 at specific positions on the bed body 10, not only can the linear motor 1 be installed precisely and stably, but the structural rigidity and thermal management capability of the bed can also be significantly improved, providing strong support for the high-precision and high-speed machining of the machine tool. At the same time, this design also simplifies the maintenance process, enhances the versatility and modularity of the bed, and improves the overall performance and use value of the machine tool.

[0047] In this embodiment, the bed structure further includes a limiting groove 13 and a guide rail 4. The limiting groove 13 is disposed on the upper surface of the bed body 10 and located on one side of the opening of the mounting groove 11. The guide rail 4 is disposed within the limiting groove 13. A plurality of third mounting holes 130 are provided on the bottom wall of the limiting groove 13, and these third mounting holes 130 are spaced apart along the extending direction of the limiting groove 13. The guide rail 4 is connected to the bed body 10 through the plurality of third mounting holes 130. The limiting groove 13 has a first preset height h1 and a first preset width a1. The first preset height h1 satisfies: 3mm ≤ h1 ≤ 7mm, and the first preset width a1 satisfies: 40mm ≤ a1 ≤ 48mm. The guide rail 4 is a linear guide rail.

[0048] The third mounting hole 130 inside the limiting groove 13 allows the guide rail 4 to be securely fixed to the bed body 10. By adjusting the position of the guide rail 4 in different third mounting holes 130, the guide rail 4 can be precisely positioned to ensure its alignment accuracy with the linear motor 1 or other moving parts, thereby improving the overall machining accuracy of the machine tool.

[0049] The first preset height h1 of the limiting groove 13 is between 3mm and 7mm. This design not only ensures the stable embedding of the guide rail 4, but also enhances the rigidity of the bed structure by limiting the vertical displacement of the guide rail 4. The height setting avoids excessive bending or vibration of the guide rail 4 due to cutting forces or gravity, thereby ensuring the smooth operation of the machine tool and machining accuracy. The first preset width a1 of the limiting groove 13 is set between 40mm and 48mm. This width range takes into account the influence of thermal expansion. During machining, the bed and guide rail 4 will expand due to thermal effects. The appropriately wide limiting groove 13 can provide sufficient space to accommodate this expansion and reduce the accuracy loss caused by thermal deformation.

[0050] It can be seen that the design of the limiting groove 13 and the guide rail 4, as well as the precise control of the first preset height h1 and the first preset width a1, helps to ensure the installation accuracy of the guide rail 4 on the bed, reduces assembly errors, and improves the overall assembly quality and operating efficiency of the machine tool.

[0051] In this embodiment, the bed structure also includes an adjustment groove 14 and multiple adjustment blocks 15. The adjustment groove 14 is disposed on the upper surface of the bed body 10 and located between the limiting groove 13 and the mounting groove 11. The adjustment groove 14 is connected to the limiting groove 13, and the side wall of the adjustment groove 14 away from the limiting groove 13 is an inclined surface. Multiple adjustment blocks 15 are provided with multiple fourth mounting holes 140 at intervals along the extension direction on the bottom wall of the adjustment groove 14. The multiple adjustment blocks 15 are connected to the multiple fourth mounting holes 140 in a one-to-one correspondence, and each adjustment block 15 abuts against the guide rail 4. The width of the adjustment groove 14 gradually decreases along the direction from the groove opening to the groove bottom. The adjustment groove 14 has a second preset height h2 and a second preset width a2. The second preset height h2 satisfies: 10mm≤h2≤16mm, and the second preset width a2 satisfies: 12mm≤a2≤20mm.

[0052] The adjusting slot 14 is tightly connected to the guide rail 4, and the internal fourth mounting hole 140 allows the adjusting block 15 to contact the guide rail 4 and apply pressure. By adjusting the position of each adjusting block 15, the operator can fine-tune the straightness and parallelism of the guide rail 4 to ensure the precise alignment of the guide rail 4 with the linear motor 1 or other motion components, thereby improving the machining accuracy and operating efficiency of the machine tool.

[0053] The second preset height h2 of the adjusting groove 14 is between 10mm and 16mm. This height range is chosen to take into account the coefficient of thermal expansion and the change in the gap between the guide rail 4 and the machine bed. During machining, the machine bed and guide rail 4 will deform due to thermal effects. An appropriate h2 value can compensate for this deformation, maintain good contact between the guide rail 4 and the machine bed, and reduce the impact of thermal deformation on machine accuracy. The second preset width a2 of the adjusting groove 14 is between 12mm and 20mm, which is a carefully calculated value range. This setting not only ensures that the adjusting block 15 has enough space to contact the guide rail 4, but also minimizes the area occupied by the adjusting groove 14 on the surface of the machine bed, improves the space utilization of the machine bed, and makes the overall layout of the machine tool more compact and occupies less floor space.

[0054] As can be seen, the connection between the adjusting groove 14 and the limiting groove 13 allows the guide rail 4 to be initially positioned using the limiting groove 13, and also finely adjusted using the adjusting groove 14. This design greatly improves the assembly accuracy of the guide rail 4, while also simplifying the assembly process and increasing assembly efficiency.

[0055] In this embodiment, there are two of each of the limiting groove 13, the guide rail 4, and the adjustment groove 14.

[0056] In this embodiment, the bed body 10 has a hollow structure, and the bed structure also includes a plurality of first reinforcing ribs 16 and a plurality of second reinforcing ribs 17. The plurality of first reinforcing ribs 16 are arranged sequentially and spaced apart in the inner cavity of the bed body 10 along a first direction; the plurality of second reinforcing ribs 17 are arranged sequentially and spaced apart in the inner cavity of the bed body 10 along a second direction. The plurality of first reinforcing ribs 16 and the plurality of second reinforcing ribs 17 are sequentially and alternately connected to form a plurality of sequentially connected hollow cavities 18 in the bed body 10; wherein the first direction and the second direction are arranged perpendicular to each other.

[0057] The staggered arrangement of the first reinforcing rib plate 16 and the second reinforcing rib plate 17 forms a grid-like support system, significantly enhancing the structural rigidity of the machine bed body 10. This design effectively disperses dynamic loads and cutting forces during machining, reduces bed deformation, and ensures long-term stable operation and machining accuracy of the machine tool.

[0058] The reinforcing ribs, perpendicular to each other in the first and second directions, work together inside the bed body 10 to form a three-dimensional reinforcing network. This effectively resists bending and torsion of the bed under lateral and longitudinal loads, which is crucial for maintaining the stability of the machine tool under high-speed and high-precision machining conditions. Furthermore, the hollow cavity 18 design promotes internal air circulation, aiding in the bed's thermal management and heat dissipation. After prolonged or high-intensity operation, internal heat can be dissipated more quickly through these cavities, reducing machining errors caused by thermal deformation and maintaining the machine tool's accuracy and performance.

[0059] The addition of reinforcing ribs increases the rigidity of the machine bed, allowing it to operate at higher speeds and under heavier cutting conditions, thus improving productivity. At the same time, optimized design reduces the need for additional bed material and thickness, lowering manufacturing costs and enhancing overall cost-effectiveness.

[0060] In this embodiment, the bed structure also includes a plurality of reserved parts 19, which are respectively disposed on the side of the bed body 10. Each reserved part 19 has a plurality of fifth mounting holes 190 spaced apart for connection with sheet metal parts. The reserved parts 19 are respectively disposed on the left and right sides and the back of the bed body 10.

[0061] The fifth mounting hole 190 on the pre-installed part 19 provides a fixed connection point for mounting sheet metal parts, making the assembly process simpler and faster. This pre-planned mounting hole layout avoids the need for on-site drilling, reduces installation errors, and improves assembly efficiency and accuracy. The sheet metal parts are firmly connected to the machine bed body 10 via the pre-installed part 19, further enhancing the side rigidity of the machine tool, helping to resist external impacts and cutting forces, and ensuring stable operation of the machine tool under harsh working conditions. This is of great significance for improving machining accuracy and extending the service life of the machine tool.

[0062] It is evident that the design of the reserved part 19 and the fifth mounting hole 190 not only simplifies the assembly process and improves the overall protection capability of the machine tool, but also demonstrates good flexibility, cost-effectiveness and maintenance convenience, which plays a positive role in improving machine tool performance and user experience.

[0063] In this embodiment, the bed structure also includes a chip removal component 40, which is disposed on the side of the bed body 10. The top and bottom of the chip removal component 40 are respectively provided with a chip inlet 41 and a chip outlet 42, which are connected to each other so that waste chips are discharged from the chip outlet 42 through the chip inlet 41. A fixing plate 43 is provided inside the chip inlet 41, and the fixing plate 43 has a preset angle b with the horizontal direction. The preset angle b satisfies: 20°≤b≤50°.

[0064] The chip inlet 41 of the chip conveyor 40 is directly connected to the machining area, while the chip outlet 42 guides the waste chips to the external waste chip collection system. The design of the preset included angle b effectively utilizes the weight of the waste chips themselves and the airflow generated during machining, ensuring that the waste chips can smoothly and quickly pass from the chip inlet 41 through the inside of the chip conveyor 40 and finally be discharged through the chip outlet 42, avoiding the accumulation of waste chips inside the machine bed, thereby reducing the impact of waste chips on machining accuracy and machine tool operation.

[0065] The angle b formed between the fixed plate 43 and the horizontal direction helps to reduce the residue of waste chips inside the chip inlet 41. Especially for waste chips that are sticky or have complex shapes, this angle design can utilize the combined effect of gravity and friction to ensure that waste chips can be discharged more thoroughly from the chip inlet 41, reducing the difficulty of cleaning and improving the cleaning efficiency of the machine tool.

[0066] As can be seen, the design of the preset included angle b avoids the problems of chips easily getting stuck if the angle is too small, and raising the machine bed, weakening rigidity, and increasing casting costs if the angle is too large. Main uses: Chips can automatically slide off under gravity, reducing manual cleaning and increasing the effective operating time of the machine tool. It prevents hot chips from accumulating near the guide rail 4 and the worktable, preventing thermal deformation and maintaining machining accuracy. Cutting fluid flows quickly with the chips to the chip collection port, ensuring smooth return and facilitating coolant recycling and environmental protection. It provides sufficient installation space for automatic chip conveyors such as chain plates or scrapers, enabling continuous chip removal and improving the level of automation.

[0067] According to another aspect of the present invention, a machine tool is provided, including the bed structure mentioned above.

[0068] The bed structure of this invention, through optimized design such as the double rectangular guide rails with a composite cross-section, densely distributed grid-like reinforcing ribs, and the integration of modular transmission units, significantly enhances the rigidity of the bed and improves the stability of the machine tool under high-speed, high-precision machining conditions. This means that the machine tool can maintain excellent machining quality and efficiency in more demanding working environments.

[0069] Through improvements to the bed structure, particularly the local thickening of the linear guide mounting area, the denser arrangement of reinforcing ribs, and the introduction of a fine-tuning mechanism, vibration and deformation during machining are effectively reduced, thereby significantly improving the machining accuracy of the machine tool.

[0070] Furthermore, the bed structure, compatible with dual drives (ball screw and linear motor 1), allows the machine tool to flexibly switch transmission modes according to actual processing needs without additional downtime or complex adjustments. This flexibility greatly enhances the machine tool's adaptability and production efficiency, especially when rapid process changes or diverse processing tasks are required.

[0071] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0072] By providing mounting grooves 11 on the upper surface of the bed body 10, and combining the support member 21 with two mounting members 22 to form a mounting assembly 20, this design allows users to choose between linear motor 1 or ball screw 2, or a hybrid transmission mode combining both, according to actual machining needs. This allows the machine tool to find the optimal balance between high precision, high speed, and low cost, adapting to machining requirements in different scenarios and providing users with more diverse configuration options. This bed structure integrating dual transmission modes of linear motor 1 and ball screw 2 not only provides high machining flexibility but also significantly enhances the rigidity and stability of the machine tool through optimized design, thereby solving the technical problem of poor flexibility caused by the inability of existing machine tools to meet different machining needs through different transmission methods. Furthermore, the bed body 10 adopts a hollow multi-cavity structure design, which not only helps to reduce the overall weight of the bed and improve dynamic response speed, but also effectively reduces the overall weight while ensuring structural strength, improves dynamic response performance, and significantly enhances the bending and torsional resistance and overall rigidity of the bed. This structure is particularly suitable for bearing gravity in the Z-axis direction and torque generated during cutting, ensuring stable operation of the machine bed and maintaining high-precision machining under various complex machining conditions. Meanwhile, the additional mounting channel 23 and support 21 not only ensure the precise installation of the linear motor 1 and ball screw 2, but also enhance the stability of the machine bed structure through a distributed load-sharing mechanism.

[0073] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0075] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0076] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0077] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bed structure suitable for machine tools, characterized in that, The bed structure includes: The bed body (10) has an installation groove (11) on its upper surface. The mounting component (20) is disposed in the mounting slot (11). The mounting component (20) includes a support (21) and two mounting components (22). The two mounting components (22) are respectively located on both sides of the support (21) and are spaced apart. An mounting channel (23) is formed between the support (21) and the mounting components (22). A linear motor (1) and two ball screws (2) are provided. The linear motor (1) is disposed in the mounting groove (11) and located on the mounting assembly (20). The support member (21) is used to support the linear motor (1). The two mounting members (22) are respectively connected to the linear motor (1). The two ball screws (2) are respectively disposed in the two mounting channels (23).

2. The bed structure according to claim 1, characterized in that, The bed structure also includes: Two support components (30) are disposed in the mounting groove (11) and located at one end of the mounting channel (23). One end of the ball screw (2) is connected to a screw support seat (3). The support components (30) are used to connect to the screw support seat (3) to support it.

3. The bed structure according to claim 2, characterized in that, The support component (30) includes: Two mounting protrusions (31) are arranged parallel to each other. The mounting protrusions (31) are provided with a plurality of first mounting holes (32). The plurality of first mounting holes (32) are arranged sequentially at intervals along the extension direction of the mounting protrusions (31). The lead screw support (3) is connected to the support assembly (30) through the plurality of first mounting holes (32).

4. The bed structure according to claim 1, characterized in that, The mounting member (22) is provided with a plurality of second mounting holes (220), which are arranged sequentially at intervals along the extending direction of the mounting member (22). The linear motor (1) is connected to the mounting assembly (20) through the plurality of second mounting holes (220); and / or, A reinforcing member (12) is provided on the inner wall of the bed body (10) at a position corresponding to the bottom of the mounting groove (11).

5. The bed structure according to claim 1, characterized in that, The bed structure also includes: A limiting groove (13) is provided on the upper surface of the bed body (10) and located on one side of the groove opening of the mounting groove (11); The guide rail (4) is set in the limiting groove (13). The bottom wall of the limiting groove (13) is provided with a plurality of third mounting holes (130). The plurality of third mounting holes (130) are spaced apart along the extension direction of the limiting groove (13). The guide rail (4) is connected to the bed body (10) through the plurality of third mounting holes (130). The limiting groove (13) has a first preset height h1 and a first preset width a1. The first preset height h1 satisfies: 3mm≤h1≤7mm, and the first preset width a1 satisfies: 40mm≤a1≤48mm.

6. The bed structure according to claim 5, characterized in that, The bed structure also includes: An adjustment groove (14) is provided on the upper surface of the bed body (10) and located between the limiting groove (13) and the mounting groove (11). The adjustment groove (14) is connected to the limiting groove (13), and the side wall of the adjustment groove (14) away from the limiting groove (13) is an inclined surface. Multiple adjustment blocks (15), and multiple fourth mounting holes (140) are provided at intervals along the extension direction on the bottom wall of the adjustment groove (14). The multiple adjustment blocks (15) are connected to the multiple fourth mounting holes (140) in a one-to-one correspondence, and each adjustment block (15) abuts against the guide rail (4). Wherein, along the direction from the opening to the bottom of the adjustment groove (14), the width of the adjustment groove (14) gradually decreases; the adjustment groove (14) has a second preset height h2 and a second preset width a2, the second preset height h2 satisfies: 10mm≤h2≤16mm, and the second preset width a2 satisfies: 12mm≤a2≤20mm.

7. The bed structure according to claim 1, characterized in that, The bed body (10) has a hollow structure, and the bed structure further includes: Multiple first reinforcing ribs (16) are arranged sequentially and at intervals in the inner cavity of the bed body (10) along a first direction; Multiple second reinforcing ribs (17) are arranged sequentially and spaced apart in the inner cavity of the bed body (10) along the second direction. Multiple first reinforcing ribs (16) and multiple second reinforcing ribs (17) are sequentially and alternately connected to form multiple sequentially connected hollow cavities (18) in the bed body (10). The first direction and the second direction are set perpendicular to each other.

8. The bed structure according to claim 1, characterized in that, The bed structure also includes: Multiple pre-installed parts (19) are respectively provided on the side of the bed body (10), and multiple fifth mounting holes (190) are provided at intervals on the pre-installed parts (19) for connecting with sheet metal parts.

9. The bed structure according to claim 1, characterized in that, The bed structure also includes: A chip removal component (40) is provided on the side of the bed body (10). The top and bottom of the chip removal component (40) are respectively provided with a chip inlet (41) and a chip outlet (42). The chip inlet (41) and the chip outlet (42) are connected so that waste chips are discharged from the chip outlet (42) through the chip inlet (41). The chip inlet (41) is provided with a fixing plate (43), and the fixing plate (43) has a preset angle b with the horizontal direction. The preset angle b satisfies: 20°≤b≤50°.

10. A machine tool, characterized in that, The bed structure includes any one of claims 1 to 9.

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