Granite lathe bed structure for numerical control machine tool

Abstract

The granite lathe bed structure for the numerical control machine tool comprises a base, a sliding rail is arranged on the base, a first limiting strip and a second limiting strip are installed at the left end and the right end of the sliding rail respectively, and a first groove and a second groove are formed in the sliding rail. By means of the elaborately-designed lathe bed structure, diversified functional parts are installed at key positions such as the base, the sliding rails, the grooves and the guide rails, and convenience of quick disassembly and quick assembly is achieved. The design has the remarkable advantage on the characteristic that granite is prone to cracking, and when the granite cracks, the granite lathe bed can be replaced in a simpler and more efficient mode compared with a traditional granite lathe bed. Complicated dismounting steps and influences on peripheral parts are reduced, and time cost and labor cost caused by replacement and the risk that other parts are possibly damaged are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a granite bed structure for a numerically controlled machine tool. Background Art

[0002] CNC machine tools are the leading product of the machine tool industry. Precision CNC machine tools form the technological foundation and development direction of China's high-end CNC machine tools and basic manufacturing equipment. They are a strategic industry for the accelerated transformation and upgrading of the machine tool industry and the equipment manufacturing industry. Among the various components of a machine tool, the bed is the foundation. It not only supports the components mounted on it and withstands cutting forces, gravity, and clamping forces, but also maintains the correct relative positioning of the various components and the kinematic accuracy of the moving parts. Therefore, the bed must have sufficient rigidity, high precision, good vibration resistance, and minimal thermal deformation. The structure and performance of the bed are fundamental requirements for ensuring the structural layout of the CNC machine tool and the machining accuracy of the machine tool.

[0003] The existing patent publication number is CN203044907U, which discloses a new type of artificial granite bed for CNC lathes. The bed body is made of granite stone and has an overall right-angled triangle cross-section. The inclined surface of the bed body is formed with multiple continuous concave and convex mounting surfaces, and the concave and convex mounting surfaces include a saddle guide rail mounting surface, a Z-axis feed system support mounting surface, a spindle box mounting surface, and a tailstock mounting rail mounting surface. This utility model organically combines artificial granite technology with the inclined bed structure of a CNC lathe. The bed saddle guide rails are linear rolling guide rails, and the tailstock guide rails are mounting rails, realizing an artificial granite CNC horizontal inclined bed structure. It solves the heat treatment problem of the tailstock guide rail, has a simple structure, low cost, and is easy to maintain. It greatly improves the precision and stability of the machine tool, improves the processing dynamic characteristics and processing accuracy, saves metal materials and energy, and reduces casting pollution of cast iron bed materials. It can be used for the inclined bed structure of precision CNC horizontal lathes.

[0004] Existing traditional granite bases have the following shortcomings: complex structural design and fixation, inconvenient assembly and disassembly, and cumbersome replacement of components, especially damaged granite, which consumes considerable time and labor, and may also damage surrounding components, increasing repair costs. Procurement, installation, and maintenance costs are high, resulting in a low cost-performance ratio. Furthermore, most granite bases are integrated or difficult to assemble and disassemble, making partial repair or replacement of cracked granite difficult, often requiring complete replacement. This is costly and can lead to long periods of downtime, impacting production efficiency. There is also a lack of flexibility in responding to sudden damage, which can easily cause equipment to be out of service for extended periods due to base damage. Therefore, we propose a granite bed structure for CNC machine tools to address these issues. Utility Model Content

[0005] The purpose of this part is to outline some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. In this part and the abstract of the description and the title of the present application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract of the description and the title of the present application, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] Therefore, the present application aims to provide a granite bed structure for numerical control machine tool, which can solve the following problems of the existing traditional granite base: the structure design is fixed and complex, disassembly and assembly are inconvenient, replacement of damaged parts, especially granite, is complicated, a large amount of time and labor cost is consumed, and surrounding parts may be damaged to increase maintenance cost. The procurement, installation and maintenance cost are high, and the cost performance is low. Moreover, most of them are designed in one piece or are difficult to disassemble and assemble, and it is difficult to repair or replace the cracked granite locally, so the whole granite needs to be replaced, which is costly and may cause long downtime, affecting production efficiency, and lacks flexibility in dealing with damage emergencies, which may cause the equipment to be out of service for a long time due to damage to the base.

[0007] To solve the above technical problems, the present application provides a granite bed structure for numerical control machine tool, which adopts the following technical scheme: a base is provided, a sliding rail is formed in the base, first and second limiting strips are respectively installed at the left and right ends of the sliding rail, first and second grooves are formed in the sliding rail, the first groove is located in front of the second groove, a first positioning block is vertically movably installed in the first groove, a first electric push rod is tightly installed in the first groove and located directly below the first positioning block, and the first electric push rod exerts force on the first positioning block to realize displacement control and mechanical motion matching.

[0008] Optionally, a second positioning block is vertically movably installed in the second groove, a second electric push rod is tightly installed in the second groove and located directly below the second positioning block, and the second electric push rod exerts force on the second positioning block to realize displacement control and mechanical motion matching.

[0009] Optionally, a third groove is formed in the sliding rail, the third groove is located between the first and second grooves, a solid heat dissipation block is vertically movably installed in the third groove, and a third and a fourth electric push rod are tightly installed in the third groove and located directly below the solid heat dissipation block.

[0010] Optionally, the third electric push rod is located in front of the fourth electric push rod, and the third and fourth electric push rods exert force on the solid heat dissipation block to realize displacement control and mechanical motion matching.

[0011] Optionally, the granite guide rail is horizontally movably installed on the slide rail, and first and second limiting grooves are formed on left and right ends of the granite guide rail.

[0012] Optionally, first and second positioning grooves are formed below the granite guide rail, the first positioning groove is located in front of the second positioning groove, and the first and second positioning blocks cooperatively act on the granite guide rail.

[0013] Optionally, a heat dissipation groove is formed below the granite guide rail, the solid heat dissipation block is connected with the heat dissipation groove, a movable groove is formed in front of the base, a limiting plate is vertically movably installed in the movable groove, a plurality of transmission rods are movably installed in the movable groove, the transmission rods apply force to the limiting plate to realize displacement control and mechanical movement matching, and a plurality of fixing screws and leveling screws are tightly installed around the granite guide rail.

[0014] In summary, the utility model has at least one of the following beneficial effects: 1. Through the carefully designed bed body structure, a variety of functional components are installed at key positions such as the base, the slide rail, the groove and the guide rail, and the convenience of quick disassembly and quick assembly is realized. This design has a significant advantage for the characteristic of granite cracking. Compared with the traditional granite bed body, it can be replaced in a simpler and more efficient way when the granite cracks. It reduces the complex disassembly steps and the influence on the surrounding components, greatly reducing the time cost, labor cost and the risk of damage to other components caused by replacement.

[0015] 2. Through the innovative bed body structure and reasonable component combination, the purpose of reducing cost is effectively achieved. In the case of granite cracking and replacement, the maintenance cost of this design is lower than that of the traditional granite bed body, and the replacement cost is also lower. From the acquisition and installation of components to long-term use and maintenance, it shows excellent economy and greatly improves the practicality and cost performance of the equipment in the entire life cycle. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is a local structure schematic view of the utility model;

[0019] Figure 3 It is a local sectional structure schematic view of the utility model;

[0020] Figure 4 It is a whole sectional side view structure schematic view of the utility model;

[0021] Figure 5 It is a granite guide rail schematic view of the utility model.

[0022] Mark 1, base; 2, slide rail; 3, first limit strip; 4, second limit strip; 5, first recess; 6, second recess; 7, first positioning block; 8, first electric push rod; 9, second positioning block; 10, second electric push rod; 11, third recess; 12, solid heat dissipation block; 13, third electric push rod; 14, fourth electric push rod; 15, granite guide rail; 16, first limit groove; 17, second limit groove; 18, first positioning groove; 19, second positioning groove; 20, heat dissipation groove; 21, movable groove; 22, limit plate; 23, transmission rod; 24, fixed screw; 25, leveling screw. Specific implementation

[0023] The following will be combined with the attached Figures 1-5 The utility model is further explained in detail.

[0024] Example one, refer to Figures 1-5 In this embodiment, in order to be able to solve the following shortcomings existing in the conventional granite base: structure design fixed complex, disassembly is inconvenient, component especially granite is damaged and is replaced complicated, consumes a large amount of time and manpower cost, still can damage peripheral component and increase maintenance cost.From procurement, installation to maintenance cost is higher, and the cost performance is low.Most of the integrated design or disassembly is difficult, granite cracking is difficult to repair or replace locally, often needs to replace as a whole, and the cost is high, which can cause long-time shutdown, affect production efficiency, lack of flexibility in dealing with damage emergency, prone to equipment downtime due to base damage, the utility model discloses a granite bed structure for numerical control machine tool,

[0025] The cam 2 is provided with a first limit bar 3 and a second limit bar 4 at the left and right ends of the cam 2, respectively; a first groove 5 and a second groove 6 are provided in the cam 2, the first groove 5 is located directly in front of the second groove 6, a first positioning block 7 is vertically movably installed in the first groove 5, a first electric push rod 8 is fastened in the first groove 5 and is located directly below the first positioning block 7, the first electric push rod 8 applies force to the first positioning block 7 to achieve displacement control and mechanical motion matching, by installing a base 1 with a cam 2, the first limit bar 3 and the second limit bar 4 at both ends of the cam 2, the first groove 5 and the second groove 6 on the cam 2, the first positioning block 7 vertically movably in the first groove 5 and the first electric push rod 8 below it, the purpose of accurately controlling the displacement and ensuring the matching of mechanical motion is achieved, and the effect of improving the accuracy and stability of mechanical motion, reducing errors and improving the reliability of equipment operation is achieved.

[0026] A second positioning block 9 is vertically movably installed in the second groove 6, and a second electric push rod 10 is fastened and installed in the second groove 6 and is located directly below the second positioning block 9. The second electric push rod 10 applies force to the second positioning block 9 to achieve displacement control and matching with mechanical movement. By installing the vertically movable second positioning block 9 in the second groove 6 and the second electric push rod 10 located directly below it, the second electric push rod 10 applies force to the second positioning block 9 to achieve displacement control, thereby achieving the purpose of matching with mechanical movement, and realizing the effect of accurately controlling the position of related components and ensuring the stability and accuracy of mechanical movement.

[0027] A third groove 11 is provided on the slide rail 2, and the third groove 11 is located between the first groove 5 and the second groove 6. A solid heat dissipation block 12 is vertically movably installed in the third groove 11, and a third electric push rod 13 and a fourth electric push rod 14 are fastened in the third groove 11 and are located directly below the solid heat dissipation block 12. By installing the vertically movable solid heat dissipation block 12 and the third electric push rod 13 and the fourth electric push rod 14 directly below it in the third groove 11 between the first groove 5 and the second groove 6 on the slide rail 2, the purpose of flexibly controlling the position of the solid heat dissipation block 12 is achieved, and the effect of adjusting the heat dissipation on demand and effectively ensuring the heat dissipation effect and operation stability of the equipment is achieved.

[0028] The third electric push rod 13 is located directly in front of the fourth electric push rod 14. The third electric push rod 13 and the fourth electric push rod 14 apply force to the solid heat dissipation block 12 to achieve displacement control and mechanical movement matching. By installing the third electric push rod 13 directly in front of the fourth electric push rod 14 and the two jointly applying force to the solid heat dissipation block 12 to achieve displacement control, the purpose of accurately controlling the movement of the solid heat dissipation block 12 to match the mechanical movement is achieved, and the effect of accurately adjusting the heat dissipation position, ensuring the heat dissipation efficiency and stable mechanical operation is achieved.

[0029] The granite guide rail 15 is horizontally movably installed on the slide rail 2, and the first limiting groove 16 and the second limiting groove 17 are formed at the left and right ends of the granite guide rail 15. The first limiting strip 3 and the second limiting strip 4 on the slide rail 2 are horizontally movably arranged in the first limiting groove 16 and the second limiting groove 17, respectively. By installing the granite guide rail 15 with the first limiting groove 16 and the second limiting groove 17 at the left and right ends on the slide rail 2, and movably arranging the first limiting strip 3 and the second limiting strip 4 on the slide rail 2 in the two limiting grooves, respectively, the purpose of accurate limiting is achieved, and the effects of stably and accurately controlling the horizontal movement track of the granite guide rail 15, improving the operation stability and accuracy are realized.

[0030] The first positioning groove 18 and the second positioning groove 19 are arranged below the granite guide rail 15. The first positioning groove 18 is located in front of the second positioning groove 19. The first positioning block 7 cooperates with the first positioning groove 18, and the second positioning block 9 cooperates with the second positioning groove 19. The two cooperate with each other to act on the granite guide rail 15. By arranging the first positioning groove 18 and the second positioning groove 19 in front below the granite guide rail 15, and cooperating the first positioning block 7 with the first positioning groove 18 and the second positioning block 9 with the second positioning groove 19, the purpose of limiting the granite guide rail 15 in the vertical direction and the front-back direction is achieved, and the effects of stabilizing the position of the granite guide rail 15 and improving the movement accuracy are realized.

[0031] The heat dissipation groove 20 is arranged below the granite guide rail 15, and the solid heat dissipation block 12 is connected with the heat dissipation groove 20. The movable groove 21 is arranged in front of the base 1, and the limiting plate 22 is vertically movably arranged in the movable groove 21. A plurality of transmission rods 23 are movably arranged in the movable groove 21. The transmission rods 23 apply force to the limiting plate 22 to realize displacement control and mechanical movement matching. A plurality of fixing screws 24 and leveling screws 25 are tightly arranged around the granite guide rail 15. By arranging the heat dissipation groove 20 below the granite guide rail 15 and connecting the solid heat dissipation block 12 therewith, arranging the movable groove 21 in front of the base 1 and movably arranging the limiting plate 22 and the transmission rods 23 capable of applying force to the limiting plate 22 to realize displacement control in the movable groove 21, and arranging the fixing screws 24 and the leveling screws 25 around the granite guide rail 15, the purposes of effectively dissipating heat, accurately limiting the specific position of the base 1, and stabilizing the granite guide rail 15 are achieved, and the effects of guaranteeing the normal operation temperature of the equipment, improving the mechanical movement matching degree, and ensuring the position accuracy of the granite guide rail 15 are realized.

[0032] The specific working principle is: through the careful design of the bed body structure, various functional components are installed at the key positions of the base 1, the slide rail 2, the groove, the guide rail and the like, and the convenience of quick disassembly and quick assembly is realized. This design has a significant advantage for the characteristic that the granite is easy to crack. When the granite cracks, compared with the traditional granite bed body, it can be replaced in a simpler and more efficient way. It reduces the complex disassembly steps and the influence on the surrounding components, greatly reduces the time cost, labor cost and the risk of damage to other components caused by replacement. Through this innovative bed body structure and reasonable component combination, the purpose of reducing cost is effectively achieved. In the case of granite cracking and replacement, compared with the traditional granite bed body, the maintenance cost of this design is lower, and the replacement cost is also lower. Whether from the acquisition, installation of components or from the long-term use and maintenance, it shows excellent economy, greatly improves the practicability and cost performance of the equipment in the whole life cycle.

[0033] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made in the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A granite bed structure for a CNC machine tool, comprising a base (1), characterized in that: The base (1) is provided with a slide rail (2), and a first limit bar (3) and a second limit bar (4) are respectively installed at the left and right ends of the slide rail (2). A first groove (5) and a second groove (6) are provided in the slide rail (2), and the first groove (5) is located directly in front of the second groove (6). A first positioning block (7) is vertically movably installed in the first groove (5), and a first electric push rod (8) is fixedly installed in the first groove (5) and is located directly below the first positioning block (7). The first electric push rod (8) applies force to the first positioning block (7) to achieve displacement control and mechanical motion matching.

2. The granite bed structure for a CNC machine tool according to claim 1, characterized in that: A second positioning block (9) is vertically movably installed in the second groove (6), a second electric push rod (10) is fixedly installed in the second groove (6) and is located directly below the second positioning block (9), and the second electric push rod (10) applies force to the second positioning block (9) to achieve displacement control and mechanical motion matching.

3. The granite bed structure for a CNC machine tool according to claim 1, characterized in that: A third groove (11) is provided on the slide rail (2), and the third groove (11) is located between the first groove (5) and the second groove (6). A solid heat dissipation block (12) is vertically and movably installed in the third groove (11). A third electric push rod (13) and a fourth electric push rod (14) are fixedly installed in the third groove (11) and are located directly below the solid heat dissipation block (12).

4. The granite bed structure for a CNC machine tool according to claim 3, characterized in that: The third electric push rod (13) is located directly in front of the fourth electric push rod (14), and the third electric push rod (13) and the fourth electric push rod (14) exert force on the solid heat dissipation block (12) to achieve displacement control and mechanical motion matching.

5. The granite bed structure for a CNC machine tool according to claim 3, characterized in that: A granite guide rail (15) is mounted on the slide rail (2) for horizontal movement. The left and right ends of the granite guide rail (15) (15) are provided with a first limiting groove (16) and a second limiting groove (17) formed by carving. The first limiting strip (3) and the second limiting strip (4) on the slide rail (2) are respectively movable horizontally in the first limiting groove (16) and the second limiting groove (17).

6. The granite bed structure for a CNC machine tool according to claim 5, characterized in that: A first positioning groove (18) and a second positioning groove (19) are provided directly below the granite guide rail (15); the first positioning groove (18) is located directly in front of the second positioning groove (19); the first positioning block (7) cooperates with the first positioning groove (18), and the second positioning block (9) cooperates with the second positioning groove (19); the two jointly act on the granite guide rail (15).

7. The granite bed structure for a CNC machine tool according to claim 5, characterized in that: A heat dissipation groove (20) is provided directly below the granite guide rail (15), the solid heat dissipation block (12) is connected to the heat dissipation groove (20), a movable groove (21) is provided directly in front of the base (1), a limit plate (22) is vertically and movably installed in the movable groove (21), a plurality of transmission rods (23) are movably installed in the movable groove (21), the transmission rods (23) apply force to the limit plate (22) to achieve displacement control and mechanical motion matching, and a plurality of fixing screws (24) and leveling screws (25) are fastened around the granite guide rail (15).

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