High-precision rust-proof numerical control machine tool and screw rod assembling method

Abstract

The invention relates to the field of numerical control machine tools, in particular to a high-precision rust-proof numerical control machine tool and a lead screw assembling method.The high-precision rust-proof numerical control machine tool comprises a base, a workbench, two moving assemblies, a driving assembly and a protective cover assembly, protruding parts are arranged on the two sides of the base, and a concave part is arranged in the middle of the base; the two moving assemblies are installed on the top faces of the protruding parts on the two sides of the base respectively, and the driving assembly is installed in the concave part of the base. The workbench is installed on the moving assembly and the driving assembly and moves on the base through the moving assembly and the driving assembly. The top of the protective cover assembly is fixed to the bottom of the workbench, and the bottom of the protective cover assembly makes contact with the base and moves on the base along with the workbench. At least two waterproof scrapers are further arranged at the bottom of the workbench, and the bottoms of the waterproof scrapers make contact with protruding parts on the two sides of the base and move on the base along with the workbench. The effects of improving the operation precision of the numerical control machine tool, enhancing the anti-rust performance and prolonging the service life are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of CNC machine tools, and in particular to a high-precision rust-proof CNC machine tool and a screw assembly method. Background Art

[0002] As an advanced processing equipment, CNC machine tools play an important role in modern manufacturing. With the improvement of industrial automation level, CNC machine tools not only improve production efficiency, but also significantly improve product precision and quality. In the manufacturing process of various precision parts, the application of high-precision CNC machine tools has greatly promoted the development of aerospace, automobile manufacturing, and electronics industries. However, in the actual use environment, due to the influence of factors such as cutting fluid splashing and dust pollution, the key components of the machine tool are prone to corrosion or wear, thereby reducing the overall performance and service life of the machine tool.

[0003] In order to deal with these problems, the industry generally adopts a variety of measures to improve the protection capabilities of CNC machine tools. For example, by adding sealing devices to reduce the entry of external pollutants; using coating technology to enhance the corrosion resistance of key components; or designing special shielding structures to prevent liquids from penetrating into the sliding track area. In addition, some manufacturers will also introduce automatic drainage systems to remove residual cutting fluids, and cooperate with multi-stage filtration units to ensure a clean working environment. Although these methods have different focuses, the common goal is to strive to maximize the equipment operation cycle and maintain a stable operating state.

[0004] However, most of the traditional protection methods still have obvious shortcomings - they cannot effectively prevent the accumulation of a large amount of moisture and impurities under the workbench due to long-term operation. This will not only accelerate the aging and damage of the bottom components, but may also cause safety hazards and even cause the entire system to fail. Therefore, it is urgent to develop new, efficient and reliable solutions to overcome the above problems in order to achieve a more durable, safe and stable CNC machine tool operation mode. Summary of the invention

[0005] The purpose of this application is to provide a high-precision rust-proof three-axis CNC machine tool and a screw assembly method to improve the durability and stability of the CNC machine tool.

[0006] In the first aspect, the present application provides a high-precision rust-proof three-axis CNC machine tool adopts the following technical solution: A high-precision rust-proof CNC machine tool, comprising a base, a workbench, two moving components, a driving component and a protective cover component, wherein the base is provided with raised parts on both sides, a recessed part is provided in the middle of the base, the two moving components are respectively mounted on the top surfaces of the raised parts on both sides of the base, and the driving component is mounted in the recessed part of the base; The workbench is mounted on the moving assembly and the driving assembly, and moves on the base through the moving assembly and the driving assembly; The top of the protective cover assembly is fixed to the bottom of the workbench, and the bottom of the protective cover assembly is in contact with the base and moves on the base following the workbench; At least two waterproof scrapers are also arranged at the bottom of the workbench. The bottoms of the waterproof scrapers are in contact with the raised parts on both sides of the base and move along with the workbench on the base.

[0007] By adopting the above technical solution, the present application realizes a CNC machine tool with high precision and rust prevention functions. Specific effects include: the combination of the raised parts on both sides of the base design and the recessed part in the middle can effectively improve the structural stability, while providing a reasonable installation space for the moving assembly and the driving assembly. The moving assembly and the driving assembly work together to ensure that the workbench can move smoothly and accurately on the base to meet the requirements of high-precision processing. The protective cover assembly is fixedly connected to the workbench and moves with it, playing a good protective role, preventing cutting fluid or other impurities from entering the mechanical parts area, and extending the service life of the equipment. At least two waterproof scrapers are arranged at the bottom of the workbench and contact the raised part of the base. During the movement of the workbench, the liquid or debris on the raised surface can be removed, further enhancing the rust prevention performance and maintaining smooth movement, thereby improving the durability and stability of the CNC machine tool.

[0008] Preferably, the moving assembly comprises a slide rail mounted on the top surface of the protruding portion and at least two sliders slidably mounted on the slide rail; The driving assembly includes a driving motor installed at one end of the base and a screw connected to the output shaft of the motor, the screw is installed in the recessed portion of the base, and a moving block is sleeved on the screw; The bottom of the workbench is installed on the moving block and the sliding block.

[0009] By adopting the above technical solution, the present application realizes the precise movement and stable support of the workbench on the base. Specific effects include: the setting of the slide rail and the slider enables the workbench to slide smoothly on the raised parts on both sides of the base, improving the smoothness of movement and positioning accuracy. The cooperation between the motor and the screw can accurately control the moving distance and speed of the workbench to meet the requirements of high-precision processing. The design of the moving block sleeved on the screw further ensures the precise displacement of the workbench in the longitudinal direction and enhances the stability of the overall structure.

[0010] Preferably, one end of the screw rod is connected to the output shaft of the driving motor through a head seat, the middle part of the screw rod is connected to the moving block through a nut seat, and the other end of the screw rod is connected to the base through a tail seat.

[0011] By adopting the above technical solution, the present application realizes the precise connection between the screw and the drive motor, the moving block and the base. The specific effects include: one end of the screw is connected to the output shaft of the drive motor through the headstock, which ensures the stability and accuracy of power transmission and improves the overall operation efficiency of the machine tool; the middle part of the screw is connected to the moving block through the nut seat, so that the moving block can move accurately along the screw, thereby realizing the precise positioning of the workbench; the other end of the screw is connected to the base through the tailstock, which enhances the structural stability of the entire drive system, effectively reduces the errors caused by vibration or impact, and further improves the working accuracy of the CNC machine tool.

[0012] Preferably, the protective cover assembly comprises at least a first protective cover, a second protective cover and a third protective cover which are sleeved on each other, the first protective cover is fixedly connected to the bottom of the workbench, and the third protective cover is fixedly connected to one end of the base.

[0013] By adopting the above technical solution, the protective cover assembly of the present application is composed of a first protective cover, a second protective cover and a third protective cover which are mutually sleeved, the first protective cover is fixedly connected to the bottom of the workbench, and the third protective cover is fixedly connected to one end of the base. This design enables the protective cover assembly to be retracted and extended as the workbench moves, effectively covering the area below the workbench, preventing cutting fluid or other impurities from entering the interior of the machine tool, thereby improving the anti-rust performance and service life of the machine tool.

[0014] Preferably, the interior of the second protective cover extends downward to form at least two moving parts, the bottom of the moving parts contacts the raised parts on both sides of the base, and the moving parts follow the workbench to move along the raised parts of the base.

[0015] By adopting the above technical solution, the second protective cover in the protective cover assembly of the present application is provided with additional moving parts, which can slide along the raised part of the base, thereby ensuring that the protective cover assembly stably follows the movement of the workbench. This design effectively reduces the friction between the protective cover assembly and the base, improves the smoothness of movement, and avoids the problem of workbench displacement deviation caused by the blocking of the protective cover assembly.

[0016] Preferably, a guide piece is provided on the outer side of the raised portion of the base, and the bottom of the protective cover assembly extends inward to form a guide portion, and the guide portion moves along the guide piece following the workbench.

[0017] By adopting the above technical solution, the cooperation between the guide member and the guide part of the present application can effectively improve the stability of the protective cover assembly during the movement with the workbench, and avoid the deviation from the track due to external interference or component wear. At the same time, compared with the commonly used method of moving the protective cover along the slide rail in the prior art, the present application can, this design also helps to reduce friction resistance, extend the service life of related parts, and reduce friction and heat generation of the slide rail during the movement of the protective cover. Specifically in this claim, the provision of the guide member and the guide part further optimizes the overall structural layout, ensuring that the protective cover assembly always runs smoothly along the predetermined path, thereby improving the working reliability and precision of the entire CNC machine tool.

[0018] Preferably, a pulley is provided on the contact surface between the moving member and the base.

[0019] By adopting the above technical solution, the present application significantly reduces the friction between the moving part and the base through the setting of the pulley, so that the protective cover assembly can move more smoothly with the workbench on the base. At the same time, the design of the pulley also helps to improve the stability and accuracy during the movement and reduce the position deviation caused by friction. In addition, the pulley can also effectively reduce the noise generated during the movement and improve the overall quietness of the equipment during operation.

[0020] Preferably, a plurality of waterproof grooves are transversely formed on the surface of the raised portion at certain intervals.

[0021] By adopting the above technical solution, the several waterproof grooves arranged on the surface of the raised part of the present application can effectively guide the water flow to be dispersed and discharged in the lateral direction, and avoid the accumulation of water on the surface of the raised part. This design significantly improves the anti-rust performance of the CNC machine tool, and at the same time reduces the equipment corrosion problem caused by residual water stains, thereby extending the service life of the equipment.

[0022] Preferably, a rubber portion is provided on the contact surface between the waterproof scraper and the base.

[0023] By adopting the above technical solution, the present application can effectively enhance the sealing between the waterproof scraper and the base by setting a rubber part on the contact surface of the waterproof scraper and the base. Combined with the summary solution, when this design is used with the waterproof groove on the surface of the raised part of the base, it further improves the effect of preventing moisture from entering the interior of the machine tool, thereby reducing the problem of rusting of parts caused by water vapor erosion and extending the service life of the equipment.

[0024] In the second aspect, the present application provides a method for assembling a screw rod of a high-precision rust-proof CNC machine tool using the following technical solution: A method for assembling a screw of a high-precision rust-proof CNC machine tool, applied to the high-precision rust-proof CNC machine tool described in the first aspect, comprising: Use the calibration rod to adjust the headstock and tailstock so that they are installed concentrically on the base; Install the two ends of the screw rod in the headstock and tailstock respectively, and turn the nut seat to the middle of the screw rod; Use screws to hold the nut seat so that the centers of the head seat, nut seat and tail seat are in a straight line; Install the workbench on the slider and the moving block on the nut holder; Move the workbench to above the nut holder and connect the bottom of the workbench to the moving block; Remove the screws holding down the nut seat to complete the screw assembly process.

[0025] By adopting the above technical solution, the present application realizes the precise assembly of the screw in the high-precision rust-proof CNC machine tool. The specific effects include: adjusting the headstock and tailstock by the calibration rod so that they are concentrically installed on the base, ensuring the basic accuracy of the screw installation, and effectively avoiding the problem of unstable movement of the workbench caused by position deviation. The two ends of the screw are respectively installed in the headstock and tailstock and the nut seat is turned to the middle of the screw, which ensures the reasonable layout of the transmission structure, improves the transmission efficiency and reduces the energy loss. The screw is used to support the nut seat so that the center of the headstock, nut seat and tailstock are located in the same straight line, further improving the straightness and stability of the screw system, thereby enhancing the overall processing accuracy of the machine tool. The workbench is installed on the slider and the moving block is installed on the nut seat, constructing a complete motion transmission link, so that the workbench can accurately and smoothly perform the predetermined trajectory movement. Finally, the screws supporting the nut seat are removed to complete the assembly process, and the normal operation state of the system is restored under the premise of ensuring the accuracy of the initial positioning, simplifying the operation process while also ensuring the assembly quality.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application can effectively scrape off moisture and impurities on the surface of the base by providing a waterproof scraper and a raised portion with a waterproof groove, preventing them from accumulating under the workbench, thereby reducing aging damage to the bottom components and increasing the service life of the machine tool; 2. The design of the driving component combined with the moving component of this application realizes the precise and smooth movement of the workbench. The multiple protection functions of the protective cover component can effectively isolate the splashing of cutting fluid and dust pollution, and protect key components from corrosion or wear; 3. The multi-section structure of the protective cover assembly of the present application and the guide design between the protective cover assembly and the base not only ensure the flexibility when moving synchronously with the workbench, but also enhance the overall sealing and stability, further optimize the working environment of the machine tool, and improve the safety and reliability of the equipment; 4. The present application utilizes screws to support the nut seat so that the centers of the head seat, nut seat and tail seat are located in the same straight line, further improving the straightness and stability of the screw system, thereby enhancing the overall processing accuracy of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the moving component and the driving component of the embodiment of the present application; Figure 3 is a schematic diagram of the base structure of an embodiment of the present application; Figure 4 is a schematic diagram of the side view structure of the protective cover assembly and the base of an embodiment of the present application; Figure 5 is a flow chart of the screw rod assembly method of an embodiment of the present application; In the figure, 1. base; 11. raised portion; 12. recessed portion; 13. waterproof groove; 14. guide member; 2. workbench; 3. moving assembly; 31. slide rail; 32. slider; 4. driving assembly; 41. driving motor; 42. screw rod; 43. headstock; 44. nutstock; 45. tailstock; 5. protective cover assembly; 51. first protective cover; 52. second protective cover; 53. third protective cover; 54. moving member; 55. guide portion; 6. waterproof scraper; 61. rubber portion. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 -Attached Figure 5 , the technical solutions in the embodiments of the present application are clearly and completely described. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0029] The inventor of the present application has discovered that although the existing CNC machine tools have adopted a variety of protective measures to deal with problems such as cutting fluid splashing and dust pollution, it is still difficult to effectively avoid the accumulation of water and impurities under the workbench 2 due to long-term operation. For this reason, the present application mainly adopts a design scheme for a high-precision rust-proof CNC machine tool. Through a special waterproof scraper 6 and a protective cover assembly 5, this problem is completely solved, and a more durable, safe and stable equipment operation mode is achieved. The present application is further described in detail below.

[0030] The present application embodiment provides a high-precision rust-proof CNC machine tool, referring to Figure 1 , Figure 2 and Figure 3, including a base 1, a workbench 2, two moving components 3, a driving component 4 and a protective cover component 5. Among them, the base 1 is provided with raised parts 11 on both sides, and a recessed part 12 in the middle. The two moving components 3 are respectively installed on the top surfaces of the raised parts 11 on both sides of the base 1, and are used to support and guide the movement of the workbench 2. The driving component 4 is installed in the recessed part 12 of the base 1, and is responsible for driving the workbench 2 to move along the base 1. The top of the protective cover component 5 is fixedly connected to the bottom of the workbench 2, and the bottom is in contact with the base 1, and can move with the workbench 2.

[0031] like Figure 2 As shown, the moving component 3 of the embodiment of the present application is composed of a slide rail 31 and at least two sliders 32. The slide rail 31 is fixed on the top surface of the raised portion 11, and its material is usually made of wear-resistant steel or aluminum alloy to ensure high strength and durability. In some special scenarios, ceramic-based composite materials can also be used as an alternative option to further reduce the friction coefficient. The slider 32 needs to have sufficient rigidity and stability, and common types include ball bearing type and plane fitting type. The former relies on rolling friction to reduce resistance, and the latter is based on the principle of close fitting of the plane. Both can be flexibly selected according to actual needs. The connection between the slider 32 and the slide rail 31 is usually embedded, so that the slider 32 can slide smoothly on the slide rail 31.

[0032] like Figure 2 As shown, the driving assembly 4 of the embodiment of the present application mainly includes a driving motor 41 installed at one end of the base 1 and a screw 42 connected to its output shaft. The driving motor 41 can be selected as a servo motor or a stepper motor, both of which have the characteristics of precise control. For the screw 42, it is a typical spiral transmission mechanism that can realize linear reciprocating motion conversion by rotation. In order to improve the transmission efficiency, it is generally recommended to use a ball nut pair rather than an ordinary trapezoidal thread structure. At the same time, the screw 42 also needs to be equipped with a corresponding moving block to facilitate bearing the pressure load from above. One end of the screw 42 is connected to the output shaft of the driving motor 41 through a head seat 43, the middle part is connected to the moving block through a nut seat 44, and the other end is connected to the base 1 through a tail seat 45 to form a stable transmission system.

[0033] like Figure 1 As shown, the protective cover assembly 5 of the embodiment of the present application at least includes a first protective cover 51, a second protective cover 52 and a third protective cover 53 which are mutually nested, the first protective cover 51 is fixedly connected to the bottom of the workbench 2, and the third protective cover 53 is fixedly connected to one end of the base 1. The protective cover assembly 5 is mainly used to protect the guide rail, and when the workbench 2 moves, it moves with the workbench 2 to ensure that the guide rail is always located inside the protective cover assembly 5. When the guide rail is long, multiple second protective covers 52 can also be set to nest with each other.

[0034] like Figure 2 As shown, a plurality of waterproof scrapers 6 are also arranged at the bottom of the workbench 2 of the embodiment of the present application. The bottom of the waterproof scraper 6 contacts the raised portions 11 on both sides of the base 1 and moves along with the workbench 2 on the base 1. During the movement of the workbench 2, the waterproof scraper 6 can clean the moisture and impurities on the surface of the base 1 to achieve a good anti-fouling effect. In a preferred embodiment, a rubber portion 61 is provided on the contact surface between the waterproof scraper 6 and the base 1, which can make the contact effect between the waterproof scraper 6 and the base 1 better, thereby improving the anti-rust effect.

[0035] like Figure 3 As shown, the surface of the raised portion 11 of the base 1 of the embodiment of the present application is provided with a plurality of waterproof grooves 13 at certain intervals in the horizontal direction. Water or other impurities scraped by the waterproof scraper 6 can enter the waterproof grooves 13 and effectively guide the water flow to be dispersed and discharged in the horizontal direction through the waterproof grooves 13, thereby preventing water from accumulating on the surface of the raised portion 11. This design significantly improves the anti-rust performance of the CNC machine tool, while reducing the equipment corrosion problem caused by residual water stains, thereby extending the service life of the equipment. In the specific implementation process, the waterproof scraper 6 is used in conjunction with the waterproof grooves 13 on the surface of the raised portion 11 of the base 1 to further improve the effect of preventing moisture from entering the interior of the machine tool, thereby reducing the problem of rusting of parts caused by water vapor erosion and extending the service life of the equipment.

[0036] like Figure 4 As shown, in the embodiment of the present application, the second protective cover 52 located in the middle layer extends downward to form two moving parts 54, which are directly in contact with the raised parts 11 on both sides of the base 1 and synchronously follow the change in the forward direction of the workbench 2. This design cleverly utilizes the lever effect to disperse the load distribution pressure while also playing a certain barrier isolation role to prevent external particles from invading sensitive parts inside the body. In a preferred embodiment, a pulley is provided on the contact surface between the moving part 54 and the base 1, so that the protective cover assembly 5 can more smoothly follow the workbench 2 to move on the base 1.

[0037] like Figure 4As shown, a guide member 14 is provided on the outer side of the raised portion 11 of the base 1 of the embodiment of the application, and the bottom of the protective cover assembly 5 extends inward to form a guide portion 55, and the guide portion 55 moves along the guide member 14 following the workbench 2. Avoid deviation from the track due to external interference or component wear. At the same time, compared with the commonly used method of moving the protective cover along the slide rail 31 in the prior art, the present application can, this design also helps to reduce friction resistance, extend the service life of related components, and reduce friction and heat generation of the slide rail 31 during the movement of the protective cover. The provision of the guide member 14 and the guide portion 55 further optimizes the overall structural layout, ensuring that the protective cover assembly 5 always runs smoothly along the predetermined path, thereby improving the working reliability and precision of the entire CNC machine tool.

[0038] The implementation principle of this embodiment is as follows: the base 1 is designed to combine the raised parts 11 on both sides with the recessed part 12 in the middle, which can effectively improve the structural stability and provide a reasonable installation space for the moving component 3 and the driving component 4. The moving component 3 and the driving component 4 work together to ensure that the workbench 2 can move smoothly and accurately on the base 1 to meet the high-precision processing requirements. The protective cover component 5 is fixedly connected to the workbench 2 and moves with it, playing a good protective role, preventing cutting fluid or other impurities from entering the mechanical component area, and extending the service life of the equipment. At least two waterproof scrapers 6 are arranged at the bottom of the workbench 2 and contact the raised part 11 of the base 1. During the movement of the workbench 2, the liquid or debris on the raised surface can be removed, further enhancing the anti-rust performance and maintaining smooth movement, thereby improving the durability and stability of the CNC machine tool.

[0039] Since the screw rod 42 is generally assembled by connecting the headstock 43, the nutstock 44, and the tailstock 45 at three points, how to make these three points in a straight line? At present, most of the assembly methods are to use a calibration rod to hit the two ends of the headstock 43 and the tailstock 45 to make them coaxial, that is, two points in a straight line, and then connect the nutstock 44 with a screw. There will be a problem here, because the two ends of the screw rod 42 have a span, and the screw rod 42 has weight, that is, the screw rod 42 has a drooping phenomenon. Generally, a 1-meter-long screw rod 42 droops about 1.5 wires in the middle, which will affect the accuracy and knife marks of the machine tool. Therefore, the embodiment of the present application also provides a method for assembling the screw rod 42 of a high-precision rust-proof CNC machine tool, referring to Figure 5 , the specific steps are as follows: S1. Use a calibration rod to adjust the headstock 43 and the tailstock 45 so that the headstock 43 and the tailstock 45 are installed concentrically on the base 1.

[0040] Specifically, the existing method for assembling the screw rod 42 is used, and the headstock 43 and the tailstock 45 are hit with a calibration rod to make the two points concentric.

[0041] S2. Install the two ends of the screw rod 42 in the headstock 43 and the tailstock 45 respectively, and rotate the nut seat 44 to the middle of the screw rod 42.

[0042] Specifically, the screw rod 42 is installed, and the nut seat 44 is rotated to the middle position on the screw rod 42 .

[0043] S3. Use screws to support the nut seat 44 so that the centers of the head seat 43, the nut seat 44 and the tail seat 45 are located on a straight line.

[0044] Specifically, the nut seat 44 is supported by a screw, and the meter is set so that the head seat 43, the nut seat 44 and the tail seat 45 of the screw rod 42 are in a straight line.

[0045] S4, installing the workbench 2 on the slider 32, and installing the moving block on the nut holder 44.

[0046] Specifically, the slider 32 is connected with screws, the workbench 2 is installed, and the angle of the workbench 2 is adjusted to a right angle.

[0047] S5, move the workbench 2 to above the nut holder 44, and connect the bottom of the workbench 2 to the moving block.

[0048] Specifically, the workbench 2 is moved to the nut position, and the nut seat 44 is connected with screws.

[0049] S6. Remove the screws holding the nut seat 44 to complete the assembly process of the screw rod 42.

[0050] Specifically, after installation, the screws supporting the nut seat 44 can be removed, so that the head seat 43, the nut seat 44, and the tail seat 45 are guaranteed to be in a straight line.

[0051] The implementation principle of this embodiment is: to achieve the precise assembly of the screw 42 in the high-precision rust-proof CNC machine tool. The specific effects include: adjusting the headstock 43 and the tailstock 45 by the calibration rod so that they are concentrically installed on the base 1, ensuring the basic accuracy of the screw 42 installation, and effectively avoiding the problem of unstable movement of the workbench 2 caused by position deviation. The two ends of the screw 42 are respectively installed in the headstock 43 and the tailstock 45 and the nut seat 44 is turned to the middle of the screw 42, which ensures the reasonable layout of the transmission structure, improves the transmission efficiency and reduces the energy loss. The screw nut seat 44 is supported by a screw so that the center of the headstock 43, the nut seat 44 and the tailstock 45 are located in the same straight line, which further improves the straightness and stability of the screw 42 system, thereby enhancing the overall processing accuracy of the machine tool. The workbench 2 is installed on the slider 32 and the moving block is installed on the nut seat 44, which constructs a complete motion transmission link, so that the workbench 2 can accurately and smoothly perform the predetermined trajectory movement. Finally, the screws holding down the nut seat 44 are removed to complete the assembly process, restoring the system to normal operation while ensuring the accuracy of the initial positioning, thus simplifying the operation process and ensuring the assembly quality.

[0052] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision rust-proof CNC machine tool, characterized in that: The invention comprises a base (1), a workbench (2), two moving components (3), a driving component (4) and a protective cover component (5), wherein the base (1) is provided with raised portions (11) on both sides, and a recessed portion (12) is provided in the middle of the base (1); the two moving components (3) are respectively mounted on the top surfaces of the raised portions (11) on both sides of the base (1), and the driving component (4) is mounted in the recessed portion (12) of the base (1); The workbench (2) is mounted on the moving assembly (3) and the driving assembly (4), and moves on the base (1) via the moving assembly (3) and the driving assembly (4); The top of the protective cover component (5) is fixed to the bottom of the workbench (2), and the bottom of the protective cover component (5) is in contact with the base (1) and moves on the base (1) following the workbench (2); At least two waterproof scrapers (6) are also provided at the bottom of the workbench (2); the bottoms of the waterproof scrapers (6) are in contact with the raised portions (11) on both sides of the base (1) and move on the base (1) following the workbench (2).

2. A high-precision rust-proof CNC machine tool according to claim 1, characterized in that: The moving assembly (3) comprises a slide rail (31) mounted on the top surface of the raised portion (11) and at least two slide blocks (32) slidably mounted on the slide rail (31); The driving assembly (4) comprises a driving motor (41) mounted at one end of the base (1) and a screw rod (42) connected to the output shaft of the motor, the screw rod (42) being mounted in a recessed portion (12) of the base (1), and a moving block being sleeved on the screw rod (42); The bottom of the workbench (2) is mounted on the moving block and the sliding block (32).

3. A high-precision rust-proof CNC machine tool according to claim 2, characterized in that: One end of the screw rod (42) is connected to the output shaft of the driving motor (41) via a head seat (43), the middle part of the screw rod (42) is connected to the moving block via a nut seat (44), and the other end of the screw rod (42) is connected to the base (1) via a tail seat (45).

4. A high-precision rust-proof CNC machine tool according to claim 1, characterized in that: The protective cover assembly (5) comprises at least a first protective cover (51), a second protective cover (52) and a third protective cover (53) which are sleeved on each other, the first protective cover (51) being fixedly connected to the bottom of the workbench (2), and the third protective cover (53) being fixedly connected to one end of the base (1).

5. A high-precision rust-proof CNC machine tool according to claim 4, characterized in that: The interior of the second protective cover (52) extends downward to form at least two moving parts (54), the bottoms of the moving parts (54) contact the raised parts (11) on both sides of the base (1), and the moving parts (54) follow the workbench (2) and move along the raised parts (11) of the base (1).

6. A high-precision rust-proof CNC machine tool according to claim 5, characterized in that: A guide member (14) is provided on the outer side of the raised portion (11) of the base (1), and the bottom of the protective cover assembly (5) extends inward to form a guide portion (55), and the guide portion (55) moves along the guide member (14) following the workbench (2).

7. A high-precision rust-proof CNC machine tool according to claim 5, characterized in that: A pulley is provided on the contact surface between the moving member (54) and the base (1).

8. A high-precision rust-proof CNC machine tool according to any one of claims 1 to 7, characterized in that: A plurality of waterproof grooves (13) are transversely formed on the surface of the raised portion (11) at regular intervals.

9. A high-precision rust-proof CNC machine tool according to any one of claims 1 to 7, characterized in that: A rubber portion (61) is provided on the contact surface between the waterproof scraper (6) and the base (1).

10. A method for assembling a screw rod (42) of a high-precision rust-proof CNC machine tool, characterized in that: A high-precision rust-proof CNC machine tool as claimed in any one of claims 3 to 9, comprising: Using a calibration rod to adjust the headstock (43) and the tailstock (45) so that the headstock (43) and the tailstock (45) are concentrically mounted on the base (1); The two ends of the screw rod (42) are respectively installed in the headstock (43) and the tailstock (45), and the nut seat (44) is rotated to the middle of the screw rod (42); The nut seat (44) is supported by a screw so that the centers of the head seat (43), the nut seat (44) and the tail seat (45) are located on a straight line; The workbench (2) is mounted on the slider (32), and the moving block is mounted on the nut holder (44); Move the workbench (2) to above the nut holder (44), and connect the bottom of the workbench (2) to the moving block; Remove the screw that supports the nut seat (44) to complete the assembly process of the screw rod (42).

Images