A full-enclosed slide main shaft center water outlet structure

Abstract

The utility model discloses a full package side slide rest main shaft center water outlet structure, include: fixed mounting on the side slide rest upper end surface reduction box and fixed mounting on the side slide rest lower end surface main shaft, and the reduction box and the main shaft are connected through long shaft coupling between, and long shaft coupling center is equipped with cooling channel, wherein, the upper end of long shaft coupling is connected with the reduction box through first connecting part, and the lower end of long shaft coupling is connected with the main shaft through second connecting part, long shaft coupling center cooling channel water inlet front end is equipped with filter part, and the path for cooling fluid flow is provided through the setting cooling channel in long shaft coupling center, realizes center water outlet function, can directly deliver cooling liquid to cutting tool cutting position, in addition, through setting filter part in cooling channel water inlet front end, can effectively filter the cooling liquid of entering cooling channel, prevents the impurity from entering the cooling system, guarantees the stable operation of center water outlet function.

Description

Technical Field

[0001] This utility model relates to the field of fully enclosed square ram technology, specifically a water outlet structure at the center of the main shaft of a fully enclosed square ram. Background Technology

[0002] In modern machining, especially in CNC gantry milling, the increasing demands for machining accuracy, efficiency, and tool life have made spindle center cooling technology increasingly important. When processing large and complex workpieces, CNC gantry milling machines often require a large Z-axis stroke to meet diverse machining needs. To enhance machine tool rigidity, the Z-axis often adopts a fully enclosed square ram structure. This structure effectively improves stability during machining by increasing the contact area of ​​the ram guide rails in the vertical direction. However, this structure also brings a series of challenges.

[0003] In traditional fully enclosed square ram structures, the gearbox and spindle must be installed separately at opposite ends of the ram, connected by a long coupling. This layout makes it difficult to achieve center-outlet coolant functionality with current technology. Center-outlet coolant is crucial for the machining process, as it directly delivers coolant to the cutting area, promptly removing cutting heat, significantly reducing tool temperature, minimizing tool wear, and extending tool life. Simultaneously, high-pressure coolant effectively flushes away chips, preventing chip accumulation and entanglement, thus avoiding their impact on machining accuracy and improving surface finish. For example, in deep hole machining, without center-outlet coolant, the coolant cannot reach the depths of the cutting area, and chips easily clog the hole, affecting machining progress and potentially damaging the tool and workpiece. Utility Model Content

[0004] The purpose of this invention is to provide a central water outlet structure for the main shaft of a fully enclosed square ram, solving the problem in existing technologies where the gearbox and main shaft must be separately installed at both ends of the ram, connected by a long coupling. This layout makes it difficult to achieve the central water outlet function in existing technologies.

[0005] To achieve the above objectives, the main technical solution adopted by this utility model includes: a fully enclosed square slide ram main shaft center water outlet structure, comprising: a gearbox fixedly installed on the upper end face of the square slide ram and a main shaft fixedly installed on the lower end face of the square slide ram, wherein the gearbox and the main shaft are connected by a long coupling, and the long coupling has a cooling channel in the center; wherein, the upper end of the long coupling is connected to the gearbox through a first connecting component, and the lower end of the long coupling is connected to the main shaft through a second connecting component; a filter component is provided at the front end of the water inlet of the central cooling channel of the long coupling.

[0006] As a preferred technical solution, the gearbox has an output shaft inside, the output shaft is a hollow structure, the upper end of the output shaft is threaded with a rotary joint, and the lower end of the output shaft is connected to the first connecting component;

[0007] The filter component is mounted on the rotary joint.

[0008] As a preferred technical solution, the first connecting component includes a central water outlet upper connector, the upper end of which is threadedly connected to the lower end of the output shaft, and the lower end of which is inserted into the cooling channel of the long coupling and fixedly connected to the long coupling by screws.

[0009] The connection between the central water outlet connector and the output shaft, and the connection between the central water outlet connector and the long coupling, are each provided with a first O-ring seal.

[0010] As a preferred technical solution, the second connecting component includes a central underwater connector, the lower end of which is fitted onto the rear telescopic shaft of the main shaft, and the upper end is inserted into the cooling channel of the long coupling and fixed by screws.

[0011] The connection between the central underwater connector and the main shaft, and the connection between the central underwater connector and the long coupling, are each provided with a second O-ring seal.

[0012] As a preferred technical solution, the filter component includes a filter cylinder, which is connected to the rotary joint through a water inlet pipe. A filter screen and a magnetic stick are fixedly installed on the inner wall of the filter cylinder, and the magnetic stick is located upstream of the filter screen.

[0013] As a preferred technical solution, the output shaft, the long coupling, the main shaft, the rotary joint, the water inlet pipe, the central water outlet upper connector, the central water outlet lower connector, and the filter cylinder are located on the same center line and are in a connected state.

[0014] As a preferred technical solution, the magnetic sticks are provided in multiple form and are horizontally arranged at equal intervals inside the filter cylinder.

[0015] As a preferred technical solution, the cooling channel at the center of the long coupling is made of hollow steel pipe.

[0016] This utility model has at least the following beneficial effects:

[0017] This utility model provides a center-outlet water structure for a fully enclosed square ram spindle. By setting a cooling channel in the center of the long coupling, a path is provided for coolant flow, realizing the center-outlet water function. It can directly deliver coolant to the cutting part of the tool, promptly remove cutting heat, significantly reduce tool temperature, reduce tool wear, thereby extending tool life and improving the surface quality of the machined parts. In addition, by setting a filter component at the front end of the cooling channel water inlet, the coolant entering the cooling channel can be effectively filtered to prevent impurities from entering the cooling system. This avoids blockage and wear of the cooling channel caused by impurities, as well as damage to the spindle and tool, thereby extending the service life of the entire center-outlet water structure and ensuring the stable operation of the center-outlet water function. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall appearance of the water outlet structure at the center of the main shaft of the fully enclosed square slide block of this utility model.

[0020] Figure 2 This is a cross-sectional view of the water outlet structure at the center of the main shaft of the fully enclosed square slide block of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of section A in the middle;

[0022] Figure 4 This utility model Figure 2 Enlarged schematic diagram of section B in the middle;

[0023] Figure 5 This is a cross-sectional schematic diagram of the filter cylinder of the fully enclosed square slide ram main shaft center water outlet structure of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Square slide block; 2. Gearbox; 201. Output shaft; 3. Long coupling; 4. Main shaft; 5. Rotary joint; 501. Water inlet pipe; 6. Center water outlet upper connector; 7. Center water outlet lower connector; 8. First O-ring seal; 9. Second O-ring seal; 10. Filter cartridge; 1001. Filter screen; 1002. Magnetic rod. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] Example

[0028] Please refer to Figures 1 to 5 As shown, this embodiment provides a fully enclosed square ram spindle center water outlet structure, including: a reduction gearbox 2 fixedly installed on the upper end face of the square ram 1 and a spindle 4 fixedly installed on the lower end face of the square ram 1. The reduction gearbox 2 and the spindle 4 are connected by a long coupling 3, and the long coupling 3 has a cooling channel in its center; wherein, the upper end of the long coupling 3 is connected to the reduction gearbox 2 through a first connecting component, and the lower end of the long coupling 3 is connected to the spindle 4 through a second connecting component; a filter component is provided at the front end of the water inlet of the central cooling channel of the long coupling 3, and is fixed to the square ram 1 by the reduction gearbox 2 and the spindle 4 respectively. The upper and lower end faces of the pillow 1 are connected by a long coupling 3. This structure provides a basis for realizing large-stroke Z-axis movement and ensuring a certain rigidity. By setting a cooling channel in the center of the long coupling 3, a path is provided for the flow of coolant, realizing the center water outlet function. A filter component is set at the front end of the cooling channel water inlet, which can effectively filter the coolant entering the cooling channel, prevent impurities from entering the cooling system, avoid the blockage and wear of the cooling channel caused by impurities, and avoid damage to the spindle 4 and the tool, thereby extending the service life of the entire center water outlet structure and ensuring the stable operation of the center water outlet function.

[0029] The gearbox 2 has an output shaft 201 inside, which is a hollow structure. The upper end of the output shaft 201 is threaded with a rotary joint 5, and the lower end of the output shaft 201 is connected to the first connecting component. The filter component is installed on the rotary joint 5. The hollow structure of the output shaft 201 of the gearbox 2, combined with the rotary joint 5 with its threaded upper end, facilitates the inflow of coolant from the outside into the hollow channel of the output shaft 201, realizing the input of coolant. Installing the filter component on the rotary joint 5 allows the coolant to be filtered as soon as it enters the system, effectively protecting subsequent components from impurities. The structural position advantage of the rotary joint 5 facilitates the installation and maintenance of the filter component, while ensuring that the filter component is closely connected to the coolant input source, resulting in better filtration effect.

[0030] The first connecting component includes a central water outlet connector 6. The upper end of the central water outlet connector 6 is threaded to the lower end of the output shaft 201, and the lower end of the central water outlet connector 6 is inserted into the cooling channel of the long coupling 3 and fixedly connected to the long coupling 3 with screws. The connection points between the central water outlet connector 6 and the output shaft 201, and between the central water outlet connector 6 and the long coupling 3, are respectively provided with first O-ring seals 8. The central water outlet connector 6 serves as the first connecting component, realizing the connection between the output shaft 201 of the gearbox 2 and the cooling channel of the long coupling 3. Its upper end is threaded to the lower end of the output shaft 201, which is a stable connection and easy to disassemble and install, facilitating the inspection and replacement of various components during maintenance. The lower end is inserted into the cooling channel of the long coupling 3 and fixed with screws to ensure a tight connection and prevent coolant leakage. The first O-ring seals 8 are provided at the connection points to further enhance the sealing performance of the connection, ensuring that the coolant will not leak from the joint during transmission, improving the reliability of the cooling system, and avoiding poor cooling effect and corrosion of other machine tool components due to coolant leakage.

[0031] The second connecting component includes a central water outlet submersible connector 7. The lower end of the central water outlet submersible connector 7 is fitted onto the rear telescopic shaft of the main spindle 4, and the upper end is inserted into the cooling channel of the long coupling 3 and fixed with screws. The connection between the central water outlet submersible connector 7 and the main spindle 4, and the connection between the central water outlet submersible connector 7 and the long coupling 3 are respectively provided with second O-ring seals 9. The central water outlet submersible connector 7 serves as the second connecting component, realizing the connection between the main spindle 4 and the cooling channel of the long coupling 3. The lower end is fitted onto the rear telescopic shaft of the main spindle 4, which can adapt to the telescopic movement of the main spindle 4 during operation without affecting the normal operation of the main spindle. The upper end is inserted into the cooling channel of the long coupling 3 and fixed with screws to ensure the connection strength. The second O-ring seal 9 is provided at the connection to effectively prevent coolant leakage at the connection, ensuring that the coolant can smoothly enter the main spindle 4 from the cooling channel of the long coupling 3, maintaining the normal operation of the central water outlet structure, and protecting the main spindle 4 and surrounding components from the impact of coolant leakage.

[0032] The filter component includes a filter cylinder 10, which is connected to a rotary joint 5 via a water inlet pipe 501. A filter screen 1001 and a magnetic rod 1002 are fixedly installed on the inner wall of the filter cylinder 10. The magnetic rod 1002 is located upstream of the filter screen 1001. The filter screen 1001 installed on the inner wall of the filter cylinder 10 can filter out small particulate impurities in the coolant and prevent them from entering the cooling channel. The magnetic rod 1002 is located upstream of the filter screen 1001 and first adsorbs ferromagnetic impurities in the coolant, such as iron powder and iron filings, reducing the filtration burden on the filter screen and improving filtration efficiency. The two work together to effectively improve the cleanliness of the coolant, further protect the various components of the central water outlet structure, reduce failures caused by impurities, and extend the service life of the equipment.

[0033] The output shaft 201, long coupling 3, spindle 4, rotary joint 5, water inlet pipe 501, upper central water outlet connector 6, lower central water outlet connector 7, and filter cylinder 10 are all on the same center line and connected. This coaxial design ensures smooth flow of coolant throughout the system, reducing flow resistance and turbulence. The uniform pressure distribution of the coolant during transmission allows it to reach the center of spindle 4 more efficiently, achieving stable central water outlet function, improving the consistency and reliability of cooling effect, and enhancing the cooling effect on the cutting tool and workpiece during machining, thus improving machining accuracy.

[0034] Multiple magnetic rods 1002 are arranged horizontally and equidistantly inside the filter cylinder 10. The arrangement of multiple magnetic rods 1002 horizontally and equidistantly inside the filter cylinder 10 increases the adsorption area for ferromagnetic impurities in the coolant, improves the adsorption efficiency, and ensures that ferromagnetic impurities in all parts of the coolant can be fully adsorbed when the coolant flows through the filter cylinder 10, avoiding the situation of incomplete adsorption in some areas, further improving the purification effect of the coolant, and better protecting the components of the central water outlet structure from damage by ferromagnetic impurities.

[0035] The cooling channel at the center of the long coupling 3 is made of hollow steel pipe. The hollow steel pipe has good structural strength and corrosion resistance, which can withstand the mechanical stress of the long coupling 3 in the process of transmitting torque while ensuring the flow of coolant. Its material and structural characteristics make the cooling channel less prone to deformation and damage, ensuring the stability of coolant transmission and providing a reliable foundation for the long-term stable operation of the central water outlet structure.

[0036] Working principle:

[0037] Before entering the rotary joint 5, the coolant first flows into the filter component installed on the rotary joint 5. The filter component consists of a filter cylinder 10, an inlet pipe 501, a filter screen 1001, and magnetic rods 1002. After the coolant enters the filter cylinder 10 through the inlet pipe 501, multiple magnetic rods 1002 arranged horizontally at equal intervals inside the filter cylinder 10 will first adsorb ferromagnetic impurities in the coolant, such as iron powder and iron filings. Then, the coolant continues to flow and passes through the filter screen 1001 located downstream of the magnetic rods 1002. The filter screen 1001 intercepts tiny particulate impurities in the coolant, thereby achieving the filtration and purification of the coolant.

[0038] The filtered coolant enters the output shaft 201 of the gearbox 2 through the rotary joint 5. Since the output shaft 201 is a hollow structure, the coolant can flow smoothly inside it, preparing for subsequent transmission to the long coupling 3.

[0039] Coolant flows from the lower end of the output shaft 201 to the center water outlet connector 6. The upper end of the center water outlet connector 6 is threaded to the lower end of the output shaft 201, and the lower end is inserted into the cooling channel of the long coupling 3 and fixedly connected to the long coupling 3 by screws. A first O-ring seal 8 is provided at the connection points to ensure that coolant does not leak from these connections.

[0040] The cooling channel at the center of the long coupling 3 is made of hollow steel pipe, and the coolant flows stably in the channel and is transmitted to the main shaft 4.

[0041] Coolant flows from the cooling channel of the long coupling 3 to the central outlet connector 7. The lower end of the central outlet connector 7 is fitted onto the telescopic shaft at the rear end of the main shaft 4, and the upper end is inserted into the cooling channel of the long coupling 3 and fixed with screws. The second O-ring 9 set at the connection part ensures the sealing of the coolant during the transmission process and prevents leakage.

[0042] The coolant enters the spindle 4 through the central water outlet connector 7, and eventually reaches the tool position along the internal channel of the spindle 4 to cool the tool, reduce the tool temperature during the machining process, and improve the tool life and machining accuracy.

[0043] Throughout the entire process, the output shaft 201, long coupling 3, main shaft 4, rotary joint 5, water inlet pipe 501, center water outlet upper connector 6, center water outlet lower connector 7, and filter cartridge 10 are all on the same center line and connected, ensuring smooth flow of coolant. The sealing design of each connection part ensures the reliability and stability of the system.

[0044] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A water outlet structure at the center of the main shaft of a fully enclosed square slide block, characterized in that, include: A gearbox (2) is fixedly installed on the upper end face of the square slide block (1) and a main shaft (4) is fixedly installed on the lower end face of the square slide block (1). The gearbox (2) and the main shaft (4) are connected by a long coupling (3). The long coupling (3) has a cooling channel in the center. The upper end of the long coupling (3) is connected to the gearbox (2) through a first connecting component, and the lower end of the long coupling (3) is connected to the main shaft (4) through a second connecting component. The long coupling (3) has a filter component at the front end of the central cooling channel water inlet.

2. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 1, characterized in that: The gearbox (2) has an output shaft (201) inside. The output shaft (201) is a hollow structure. The upper end of the output shaft (201) is threaded with a rotary joint (5). The lower end of the output shaft (201) is connected to the first connecting component. The filter element is mounted on the rotary joint (5).

3. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 2, characterized in that: The first connecting component includes a central water outlet connector (6), the upper end of which is threaded to the lower end of the output shaft (201), and the lower end of which is inserted into the cooling channel of the long coupling (3) and fixedly connected to the long coupling (3) by screws. The connection between the central water outlet connector (6) and the output shaft (201), and the connection between the central water outlet connector (6) and the long coupling (3) are respectively provided with a first O-ring seal (8).

4. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 3, characterized in that: The second connecting component includes a central underwater connector (7), the lower end of which is fitted onto the telescopic shaft at the rear end of the main shaft (4), and the upper end is inserted into the cooling channel of the long coupling (3) and fixed by screws; The connection between the central underwater connector (7) and the main shaft (4) and the connection between the central underwater connector (7) and the long coupling (3) are respectively provided with a second O-ring (9).

5. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 4, characterized in that: The filter component includes a filter cylinder (10), which is connected to the rotary joint (5) through a water inlet pipe (501). A filter screen (1001) and a magnetic rod (1002) are fixedly installed on the inner wall of the filter cylinder (10), and the magnetic rod (1002) is located upstream of the filter screen (1001).

6. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 5, characterized in that: The output shaft (201), the long coupling (3), the main shaft (4), the rotary joint (5), the water inlet pipe (501), the central water outlet upper joint (6), the central water outlet lower joint (7), and the filter cylinder (10) are on the same center line and are in a connected state.

7. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 5, characterized in that: Multiple magnetic rods (1002) are provided and are equidistantly arranged horizontally inside the filter cylinder (10).

8. The water outlet structure at the center of the main shaft of the fully enclosed square slide block according to claim 1, characterized in that: The cooling channel at the center of the long coupling (3) is made of hollow steel pipe.

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