Stand column of numerical control machine tool

Abstract

The utility model discloses a stand column of a numerical control machine tool, which comprises a main body, the main body is of a hollow structure with a cavity inside, two vertical sliding rails are symmetrically arranged on the front end face of the main body, and the stand column of the numerical control machine tool is characterized in that the main body comprises a main body section and supporting sections respectively arranged on two sides of the bottom of the main body section, the main body section and the supporting section form a herringbone structure; a connecting section is further arranged at the top of the supporting section on one side, the side wall of the connecting section is connected with the side wall of the main body section, a vertical distance is formed between the top surface of the connecting section and the top surface of the main body section, and the top surface of the connecting section forms a tool magazine interface seat; and a plurality of through holes communicated with the cavity are formed in the rear side surface and the right side surface of the main body. The strength of the stand column is improved, the maintenance rate is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to a CNC machine tool, and more particularly to a column of a CNC machine tool. Background Technology

[0002] With the rapid development of modern manufacturing and the growing strength of the new energy and automotive industries, higher demands are being placed on the machine tool industry, particularly on the stability and processing efficiency of machine tools. To achieve automatic tool changing in CNC machine tools, tool holders are installed on the machine tool for automatic spindle tool changing.

[0003] In existing technology, there are two methods for mounting tool holders. The first method involves setting up a separate bracket on the side of the CNC machine tool frame for mounting the tool holder. This structure requires more space on the CNC machine tool, resulting in a larger machine tool size, greater space usage, and relatively higher costs.

[0004] The second method involves directly installing the mounting base on the side of the column. In this method, the weight of the tool holder is borne by the side of the column. Over time, due to the lateral force on the side of the column for a long time, the column is prone to cracking and deformation, which can lead to problems such as insufficient spindle movement accuracy and high maintenance rate of the CNC machine tool. Summary of the Invention

[0005] The purpose of this invention is to provide a column for a CNC machine tool. By using this structure, the strength of the column is effectively increased, cracking is prevented, and the maintenance rate is reduced.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a column of a CNC machine tool, comprising a main body, wherein the main body is a hollow structure with an internal cavity, and two vertical slide rails are symmetrically arranged on the front end face of the main body. The main body includes a main body section and support sections respectively arranged on both sides of the bottom of the main body section, wherein the main body section and the support sections form a herringbone structure.

[0007] A connecting section is also provided at the top of the support section on one side. The side wall of the connecting section is connected to the side wall of the main body section. There is a vertical distance between the top surface of the connecting section and the top surface of the main body section. The top surface of the connecting section constitutes a tool magazine interface seat.

[0008] The rear and right sides of the main body are provided with multiple through holes that communicate with the cavity.

[0009] In the above technical solution, each of the through holes has an extension ring extending toward the inside of the cavity on its inner wall. Each extension ring has a transverse reinforcing rib on its inner wall above and below it. The transverse reinforcing rib has a vertical spacing with the extension ring. The two ends of the transverse reinforcing rib are connected to the inner walls of the adjacent two sides of the cavity, respectively.

[0010] In the above technical solution, four central reinforcing ribs are arranged on the outer surface of each of the extension rings. The four central reinforcing ribs form a cross-shaped structure. The outer ends of two of the central reinforcing ribs are in contact with the inner walls of the cavities on opposite sides, and the outer ends of the other two central reinforcing ribs are connected to two adjacent transverse reinforcing ribs.

[0011] In the above technical solution, the two ends of the cavity penetrate the top and bottom surfaces of the column, respectively;

[0012] The connecting section has a front chamber and a rear chamber. The front side wall of the connecting section has multiple front holes that communicate with the front chamber, and the rear side wall of the connecting section has multiple rear holes that communicate with the rear chamber. The front chamber and the rear chamber are not connected. The front chamber and the rear chamber are connected to the bottom of the connecting section and the bottom of the supporting section below it.

[0013] In the above technical solution, a clearance cavity is provided on the front side wall of the main body between the two vertical slide rails, and the top of the clearance cavity is connected to the top surface of the main body;

[0014] The upper part of the relief cavity is symmetrically provided with two upper connecting parts, and the lower part of the relief cavity is symmetrically provided with two lower connecting parts, with each upper connecting part being directly opposite a lower connecting part.

[0015] In the above technical solution, the outer side of each of the upper connecting parts and the outer side of each of the lower connecting parts are connected to the rear end of the side of the vertical slide rail.

[0016] In the above technical solution, the top surface of the upper connecting part is flush with the top surface of the main body, and there is a vertical distance between the bottom surface of the lower connecting part and the bottom surface of the relief cavity.

[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] 1. The main body of this utility model is a herringbone structure, which has good strength and facilitates heat dissipation. At the same time, a connecting section is set on the top of the support section on one side. The top surface of the connecting section forms a tool magazine interface seat, which is used for the installation of the tool magazine. After the tool magazine is installed, the connecting section can be used to support the tool magazine, effectively increasing the strength of the column, while not damaging the column, preventing the column from cracking, and reducing the maintenance rate.

[0019] 2. In this utility model, multiple through holes are provided on the column and connected to the outer wall of the column, which can help remove the stress of the column, ensure the strength of the column, prevent the column from cracking, facilitate heat dissipation of the column, and extend its service life.

[0020] 3. In this utility model, a cross-shaped reinforcing rib and multiple transverse reinforcing ribs are provided on the inner wall of the cavity, and the inner end of the cross-shaped reinforcing rib is connected to the extension ring at the through hole, which can effectively increase the strength of the column and make the column lighter. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure in Embodiment 1 of this utility model;

[0022] Figure 2 This is a structural schematic diagram from another perspective in Embodiment 1 of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of this utility model.

[0024] The components are: 1. Main body; 2. Cavity; 3. Vertical slide rail; 4. Main body section; 5. Support section; 6. Connecting section; 7. Tool magazine interface seat; 8. Through hole; 9. Extension ring; 10. Horizontal reinforcing rib; 11. Middle reinforcing rib; 12. Front hole; 13. Rear hole; 14. Clearance cavity; 15. Upper connecting part; 16. Lower connecting part. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Example 1: See Figure 1-3 As shown, a column of a CNC machine tool includes a main body 1, which is a hollow structure with an internal cavity 2. Two vertical slide rails 3 are symmetrically arranged on the front end face of the main body 1. The main body 1 includes a main body section 4 and support sections 5 respectively arranged on both sides of the bottom of the main body section 4. The main body section 4 and the support sections 5 form a herringbone structure.

[0027] The top of the support section 5 on one side is also provided with a connecting section 6. The side wall of the connecting section 6 is connected to the side wall of the main body section 4. The plane where the top of the connecting section 6 is located is located below the plane where the main body section 4 is located. There is a vertical distance between the top surface of the connecting section 6 and the top surface of the main body section 4. The top surface of the connecting section 6 forms a tool magazine interface seat 7.

[0028] The rear and right sides of the main body 1 are provided with a plurality of through holes 8 that communicate with the cavity 2.

[0029] In this embodiment, the main body section is mounted on the base of the CNC machine tool via support sections on both sides. The support sections are arranged inclined outwards from top to bottom, forming a "V"-shaped structure with the main body section and support sections. A vertical slide rail is located on the front end face of the main body section, and the machine head is vertically slidably mounted on the vertical slide rail. This structure allows the support sections to elevate the main body section, creating a gap between the main body section and the base. This facilitates airflow and allows air to pass under the main body section, improving heat dissipation during machine head operation. This, in turn, extends the service life of the column and reduces its maintenance rate. Meanwhile, a connecting section is installed at the top of one side connecting section. The side wall of the connecting section connects to the side wall of the main body section. The top surface of the connecting section forms a tool magazine interface seat, on which the tool magazine can be installed. In this way, the weight of the tool magazine is mainly supported by the connecting section and the support section below. The weight of the tool magazine is directly transferred to the base through the connecting section and the support section, minimizing lateral forces on the main body section, preventing cracking, reducing maintenance rate, and extending service life. At the same time, it does not increase the space occupied by the CNC machine tool, saving costs as much as possible. To reduce the weight and cost of the column, a cavity is set inside the main body, making the column a hollow structure. In addition, to facilitate heat dissipation, through holes communicating with the cavity are set on the rear and right sides of the main body, facilitating air circulation between the outside air and the cavity, improving heat dissipation, extending service life, and reducing maintenance rate. Furthermore, the through holes can also disperse stress on the main body, ensuring the strength of the column.

[0030] See Figure 3 As shown, each of the through holes 8 has an extension ring 9 extending toward the interior of the cavity 2 on its inner wall. Each of the extension rings 9 has a transverse reinforcing rib 10 on its inner wall above and below it. The transverse reinforcing rib 10 and the extension ring 9 have a vertical distance between them. The two ends of the transverse reinforcing rib 10 are connected to the inner walls of the cavity 2 on the adjacent sides.

[0031] In this embodiment, the two ends of the cavity penetrate the top and bottom surfaces of the column, respectively. This facilitates air exchange between the outside air and the interior of the main body, thereby promoting cooling of the interior. The outside air can also contact the outer wall of the main body, cooling its outer surface and ensuring effective heat dissipation. The through-holes further accelerate airflow and enhance heat dissipation. The extension rings and transverse reinforcing ribs increase the strength of the side walls of the main body, thus improving its overall strength.

[0032] See Figure 3As shown, four central reinforcing ribs 11 are arranged around the outer surface of each of the extension rings 9. The four central reinforcing ribs 11 form a cross-shaped structure. The outer ends of two of the central reinforcing ribs 11 are in contact with the inner walls of the cavities 2 on opposite sides, and the outer ends of the other two central reinforcing ribs 11 are connected to two adjacent transverse reinforcing ribs 10.

[0033] The adjacent transverse reinforcing ribs and the inner walls of the cavities on opposite sides are connected to form a square or rectangular structure, making it a separate structure. Four central reinforcing ribs with a cross-shaped structure are set, and then an extension ring and four central reinforcing ribs are set to further strengthen the square or rectangular structure, increase the strength of the independent module, and thus increase the overall strength of the column.

[0034] See Figure 1 , 2 As shown, the connecting section 6 has a front chamber and a rear chamber. The front side wall of the connecting section 6 has a plurality of front holes 12 communicating with the front chamber. The rear side wall of the connecting section 6 has a plurality of rear holes 13 communicating with the rear chamber. The front chamber and the rear chamber are not connected. The front chamber and the rear chamber are connected to the bottom of the connecting section and the bottom of the supporting section below it.

[0035] The design of the front and rear chambers allows the connecting section to also adopt a hollow structure, reducing its weight, material usage, and cost. Furthermore, corresponding front and rear openings are provided to connect with the corresponding front and rear chambers, facilitating the entry of external air into the connecting section for heat dissipation, ensuring the service life of the column, preventing heat deformation, and extending its service life.

[0036] See Figure 1 As shown, a clearance cavity 14 is provided on the front side wall of the main body 1 between the two vertical slide rails 3, and the top of the clearance cavity 14 is connected to the top surface of the main body 1.

[0037] The upper part of the relief cavity 14 is symmetrically provided with two upper connecting parts 15, and the lower part of the relief cavity 14 is symmetrically provided with two lower connecting parts 16, with each upper connecting part 15 being directly opposite a lower connecting part 16.

[0038] Two upper connecting parts are used for mounting and fixing the upper mounting plate on both sides, and two lower connecting parts are used for mounting and fixing the lower mounting plate on both sides. The upper and lower mounting plates are used for rotatable connection of the two ends of the screw. The upper or lower mounting plate is used to fix the motor. The motor drives the screw to rotate, and the machine head is screwed to the screw. The rotation of the screw drives the mechanism to move vertically along the vertical slide rail. At the same time, the clearance cavity also facilitates the clearance of the upper and lower mounting plates, screw, and motor, reducing the size of the column and reducing the space occupied.

[0039] See Figure 1 As shown, the outer side of each of the upper connecting parts 15 and the outer side of each of the lower connecting parts 16 are connected to the rear end of the side of the vertical slide rail 3. Connecting the upper connecting parts and the lower connecting parts to the vertical slide rail can increase the strength of the vertical slide rail, prevent deformation of the vertical slide rail, effectively increase strength, and ensure the smoothness and straightness of the vertical movement of the machine head.

[0040] See Figure 1 As shown, the top surface of the upper connecting part is flush with the top surface of the main body, and there is a vertical gap between the bottom surface of the lower connecting part and the bottom surface of the clearance cavity. This facilitates the processing of the upper and lower connecting parts. At the same time, the vertical gap between the bottom surface of the lower connecting part and the bottom surface of the clearance cavity allows for the installation of the motor, providing clearance for the motor.

Claims

1. A column for a CNC machine tool, comprising a main body, wherein the main body is a hollow structure with an internal cavity, and two vertical slide rails are symmetrically arranged on the front end face of the main body, characterized in that: The main body includes a main body segment and support segments respectively disposed on both sides of the bottom of the main body segment, and the main body segment and support segments form a herringbone structure; A connecting section is also provided at the top of the support section on one side. The side wall of the connecting section is connected to the side wall of the main body section. There is a vertical distance between the top surface of the connecting section and the top surface of the main body section. The top surface of the connecting section constitutes a tool magazine interface seat. The rear and right sides of the main body are provided with multiple through holes that communicate with the cavity.

2. The column of the CNC machine tool according to claim 1, characterized in that: Each of the through holes has an extension ring extending toward the interior of the cavity on its inner wall. Each extension ring has a transverse reinforcing rib on its inner wall above and below it. The transverse reinforcing rib has a vertical spacing with the extension ring. The two ends of the transverse reinforcing rib are connected to the inner walls of the adjacent two sides of the cavity, respectively.

3. The column of the CNC machine tool according to claim 2, characterized in that: Each of the extended rings has four central reinforcing ribs arranged around its outer surface. The four central reinforcing ribs form a cross-shaped structure. The outer ends of two of the central reinforcing ribs contact the inner walls of the cavities on opposite sides, and the outer ends of the other two central reinforcing ribs are connected to two adjacent transverse reinforcing ribs.

4. The column of the CNC machine tool according to claim 1, characterized in that: The two ends of the cavity penetrate the top and bottom surfaces of the column, respectively; The connecting section has a front chamber and a rear chamber. The front side wall of the connecting section has multiple front holes that communicate with the front chamber, and the rear side wall of the connecting section has multiple rear holes that communicate with the rear chamber. The front chamber and the rear chamber are not connected. The front chamber and the rear chamber are connected to the bottom of the connecting section and the bottom of the supporting section below it.

5. The column of the CNC machine tool according to claim 1, characterized in that: A clearance cavity is provided on the front side wall of the main body between the two vertical slide rails, and the top of the clearance cavity is connected to the top surface of the main body; The upper part of the relief cavity is symmetrically provided with two upper connecting parts, and the lower part of the relief cavity is symmetrically provided with two lower connecting parts, with each upper connecting part being directly opposite a lower connecting part.

6. The column of the CNC machine tool according to claim 5, characterized in that: The outer side of each of the upper connecting parts and the outer side of each of the lower connecting parts are connected to the rear end of the side of the vertical slide rail.

7. The column of the CNC machine tool according to claim 5, characterized in that: The top surface of the upper connecting part is flush with the top surface of the main body, and there is a vertical distance between the bottom surface of the lower connecting part and the bottom surface of the relief cavity.

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