Numerical control grinding machine upper rack with bending resistance

Abstract

The utility model discloses a numerical control grinding machine upper rack with bending resistance, and relates to the technical field of numerical control grinding machines, the numerical control grinding machine upper rack comprises a base, the four sides of the base are provided with mounting grooves, the mounting grooves are internally provided with convex blocks, the sides, away from the base, of the convex blocks are provided with cavity pipes, and the outer walls of the bottoms of the cavity pipes are provided with reinforcing ribs at equal intervals; a mounting seat is arranged at the top of the base, a limiting sliding groove is formed in the mounting seat, a connecting sliding block is arranged in the limiting sliding groove in a sliding mode, a cross-shaped protruding block on one side of the cavity pipe is clamped to the base, connection between the cavity pipe and the base is more stable, and the stress area of the base can be increased; the cavity tube can bear larger load through the triangular reinforcing ribs located at the bottom of the cavity tube, and the longitudinal bending rigidity of the cavity tube can be enhanced through the #-shaped partition plates arranged in the cavity tube, so that the problem that the machining precision and stability are affected due to deformation of the base when the base bears larger load can be avoided; therefore, the machining quality and efficiency of the numerical control grinding machine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control grinding machines, and particularly relates to an upper frame of a numerical control grinding machine with bending resistance. Background Art

[0002] With the transformation and upgrading of the manufacturing industry, the demand for high-precision and high-efficiency numerical control grinding machines is increasing continuously. Especially in the fields of aerospace, automobile manufacturing, mold manufacturing, etc., the requirements for machining accuracy are getting higher and higher. Therefore, the requirements for the bearing capacity of the upper frame of the numerical control grinding machine are also getting higher and higher.

[0003] The traditional upper frame of the numerical control grinding machine usually adopts a simple beam and plate structure, lacking sufficient bending resistance and stiffness. As a result, the existing upper frame is prone to deformation when bearing a large load, affecting the machining accuracy and stability, and further reducing the machining quality and efficiency. At the same time, it may cause fatigue failure and damage due to stress concentration, shortening the service life of the machine tool. Content of the Utility Model

[0004] In view of this, aiming at the deficiencies of the existing technology, the utility model provides an upper frame of a numerical control grinding machine with bending resistance to solve the problem that the existing technology cannot meet the requirements of high-precision and high-efficiency machining due to the relatively simple structure of the upper machine tool and poor bending resistance.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: An upper frame of a numerical control grinding machine with bending resistance, including a base. Installation grooves are provided on four sides of the base. Protrusions are arranged inside the installation grooves. Chamber tubes are arranged on the sides of the protrusions away from the base. Reinforcing ribs are evenly arranged on the outer wall of the bottom of the chamber tubes. An installation seat is arranged on the top of the base. A limiting sliding groove is provided on the installation seat. A connecting slider is slidably arranged inside the limiting sliding groove. A connecting plate is arranged on the top of the connecting slider. A receiving plate is arranged at one end of the connecting plate. A buffer assembly is arranged inside the installation seat, which is used to relieve the impact force received by the receiving plate.

[0006] Preferably, partition plates are evenly arranged inside the chamber tubes. The partition plates are in a cross shape as a whole, which is used to enhance the longitudinal bending stiffness of the chamber tubes.

[0007] Preferably, the cross section of the protrusion is in a cross shape, which is used to improve the connection stability between the chamber tube and the base.

[0008] Preferably, the installation seat is in a cross shape as a whole. The number of the connecting sliders is several, which is used to evenly transfer the force received by the receiving plate to the base and the chamber tubes.

[0009] Preferably, the buffer assembly includes a limit rod, which is arranged in the installation groove, and the connecting slider is slidably installed on the outer surface of the limit rod. A telescopic spring is arranged between the connecting slider and the opposite surface of the installation groove, and the telescopic spring is sleeved on the outer surface of the limit rod.

[0010] Preferably, connecting columns are evenly arranged at the bottom of the receiving plate, sealing plates are evenly arranged at the bottom ends of the connecting columns, sealing cylinders are evenly arranged at the top of the base, and the inner surface of the sealing cylinder is in contact with the outer surface of the sealing plate.

[0011] Preferably, buffer pads are evenly arranged on the bottom of the receiving plate, and the buffer pads are aligned with the mounting seat, which are used to prevent the receiving plate from directly colliding with the mounting seat and causing damage thereto.

[0012] Compared with the prior art, the utility model provides a CNC grinding machine frame with bending resistance, which has the following beneficial effects:

[0013] By engaging the cross-shaped protrusion on one side of the cavity tube with the base, the connection between the two is made more stable, and the force-bearing area of the base is increased. The triangular reinforcing ribs located at the bottom of the cavity tube can enable the cavity tube to withstand a larger load, and the criss-cross-shaped partitions are arranged inside the cavity tube to enhance the longitudinal bending stiffness of the cavity tube, thereby avoiding the problem of deformation of the base when subjected to a large load, which affects the processing accuracy and stability, thereby improving the processing quality and efficiency of the CNC grinder.

[0014] During the production and processing of the CNC grinder, the receiving plate drops vertically due to the gravity and impact force of each device on the CNC grinder. The receiving plate continuously squeezes the connecting plate, causing the connecting slider under it to slide along the inside of the limiting slide groove, thereby transferring the load on the receiving plate to the mounting seat, thereby evenly distributing the load on the base and the top of the cavity tube, thereby further improving the bending resistance of the base and the cavity tube, and also preventing fatigue damage to the base and the cavity tube due to stress concentration, thereby extending their service life.

[0015] The supporting plate descends vertically and drives the connecting column and the sealing plate thereunder to slide vertically downward along the inner wall of the sealing cylinder, so that the internal space of the sealing cylinder is continuously reduced and the air pressure is continuously increased, thereby being able to absorb the impact force and vibration force exerted on the supporting plate to a certain extent. At the same time, in the process of the connecting slider sliding along the limiting slide groove, the connecting slider slides along the outer surface of the limiting rod and continuously squeezes the telescopic spring, and the elastic deformation of the telescopic spring is used to absorb the impact force and vibration force exerted on the supporting plate to a certain extent, thereby being able to avoid a certain degree of damage to the frame of the CNC grinder caused by the impact force and vibration force generated during the processing of the CNC grinder, thereby extending the service life of the frame of the CNC grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the exploded view of the structure of the receiving plate in the present utility model;

[0018] Figure 3 is the enlarged view of the structure of the mounting seat in the present utility model;

[0019] Figure 4 is the exploded view of the structure of the cavity tube in the present utility model;

[0020] Figure 5 is the sectional structural schematic diagram of the cavity tube in the present utility model.

[0021] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0022] 1. Base; 2. Cavity tube; 3. Installation groove; 4. Protrusion; 5. Partition; 6. Reinforcing rib; 7. Mounting seat; 8. Limiting rod; 9. Limiting sliding groove; 10. Connecting slider; 11. Connecting plate; 12. Telescopic spring; 13. Receiving plate; 14. Sealing cylinder; 15. Connecting column; 16. Sealing plate; 17. Buffer pad. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Next, the present utility model will be further described in detail according to the drawings and embodiments.

[0025] Embodiment

[0026] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5As shown in the figure, to solve the problems mentioned in the technical solution, the embodiment of the present application provides an upper frame of a numerically controlled grinding machine with bending resistance, including a base 1. Installation grooves 3 are provided on all four sides of the base 1. Protrusions 4 are provided inside the installation grooves 3. Chamber tubes 2 are provided on the sides of the protrusions 4 away from the base 1. Reinforcing ribs 6 are evenly arranged on the outer wall of the bottom of the chamber tubes 2. Among them, the cross-section of the chamber tube 2 is rectangular, and its square cross-sectional shape can improve the bending stiffness. Moreover, the reinforcing ribs 6 are triangular as a whole, which enables the chamber tube 2 to bear a greater load. An installation seat 7 is arranged on the top of the base 1. A limit sliding groove 9 is provided on the installation seat 7. A connecting slider 10 is slidably arranged inside the limit sliding groove 9. A connecting plate 11 is arranged on the top of the connecting slider 10. A receiving plate 13 is arranged at one end of the connecting plate 11. Among them, the receiving plate 13 is used to carry each device of the numerically controlled grinding machine. A buffer assembly is arranged inside the installation seat 7, which is used to relieve the impact force received by the receiving plate 13.

[0027] It is worth mentioning that partitions 5 are evenly arranged inside the chamber tube 2. The partitions 5 are in a cross shape as a whole, which is used to enhance the longitudinal bending stiffness of the chamber tube 2, and then can improve the rigidity and bending resistance of the chamber tube 2, so that the numerically controlled grinding machine can stably carry out high-precision processing work. In addition, the cross-section of the protrusion 4 is in a cross shape, which is used to improve the connection stability between the chamber tube 2 and the base 1, so as to improve the rigidity and stability of the machine body, and can effectively resist external stress and vibration. And, the installation seat 7 is in a cross shape as a whole, and the number of connecting sliders 10 is several, which is used to evenly transfer the force received by the receiving plate 13 to the base 1 and the chamber tube 2, and can prevent the situation of fatigue damage caused by stress concentration in certain parts, and then can extend the service life of the machine tool to a certain extent.

[0028] Further embodiments:

[0029] Please refer to Figures 1 to 4 As shown in the figure, the buffer assembly includes a limit rod 8. The limit rod 8 is arranged in the installation groove 3. The connecting slider 10 is slidably installed on the outer surface of the limit rod 8. A telescopic spring 12 is arranged between the connecting slider 10 and the opposite surface of the installation groove 3. The telescopic spring 12 is sleeved on the outer surface of the limit rod 8. Among them, the limit rod 8 can limit and guide the connecting slider 10, and the telescopic spring 12 can provide a certain buffer force for the connecting slider 10. In addition, connecting columns 15 are evenly arranged at the bottom of the receiving plate 13. Sealing plates 16 are arranged at the bottom ends of the connecting columns 15. Sealing cylinders 14 are evenly arranged on the top of the base 1. The inner surface of the sealing cylinder 14 is attached to the outer surface of the sealing plate 16, so as to provide a certain support and buffer effect for the receiving plate 13 by using the pressure difference. At the same time, buffer pads 17 are evenly arranged at the bottom of the receiving plate 13, and the buffer pads 17 are aligned with the installation seat 7, which is used to prevent the receiving plate 13 from directly hitting the installation seat 7 and causing damage to it.

[0030] The working principles of all the contents in the above embodiments are as follows:

[0031] During use, the cross-shaped bump 4 on one side of the cavity tube 2 is engaged with the base 1, making the connection between the two more stable. At the same time, it can also increase the stress-bearing area of the base 1. Then, the triangular reinforcing rib 6 at the bottom of the cavity tube 2 enables the cavity tube 2 to bear a greater load, and the partition 5 arranged in a grid shape inside the cavity tube 2 can enhance the longitudinal bending stiffness of the cavity tube 2. Furthermore, it can avoid the problem that the base 1 deforms when bearing a large load, which affects the machining accuracy and stability, thereby improving the machining quality and efficiency of the CNC grinding machine. When various devices of the CNC grinding machine are installed on the receiving plate 13, the receiving plate 13 descends vertically under force. The connecting column 15 and the sealing plate 16 at the bottom of the receiving plate 13 slide vertically downward along the inner wall of the sealing cylinder 14. During this process, the internal space of the sealing cylinder 14 continuously shrinks, and the air pressure continuously increases, thereby being able to absorb part of the load of the receiving plate 13. At the same time, the receiving plate 13 descends vertically and continuously presses the connecting plate 11, causing the connecting slider 10 below it to slide along the inner part of the limiting chute 9. Thus, the load received by the receiving plate 13 can be transmitted to the mounting seat 7, and the load can be evenly distributed on the top of the base 1 and the cavity tube 2, further improving the bending resistance of the base 1 and the cavity tube 2, and also preventing fatigue damage to the base 1 and the cavity tube 2 caused by stress concentration, and extending their service life. During the process of the connecting slider 10 sliding along the limiting chute 9, the connecting slider 10 also slides along the outer surface of the limiting rod 8 and continuously presses the telescopic spring 12, causing it to continuously contract. Therefore, the elastic deformation of the telescopic spring 12 is used to absorb the impact force and vibration force received by the receiving plate 13 to a certain extent. At the same time, combined with the pressure difference inside the sealing cylinder 14, it can also absorb the impact force and vibration force received by the receiving plate 13 to a certain extent. Furthermore, it can avoid a certain degree of damage to the upper frame of the CNC grinding machine caused by the impact force and vibration force generated during the machining process of the CNC grinding machine, thereby extending the service life of the upper frame of the CNC grinding machine.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A numerically controlled grinding machine upper frame with bending resistance, comprising a base (1), characterized in that: Installation grooves (3) are provided on all four sides of the base (1), bumpers (4) are arranged inside the installation grooves (3), cavity tubes (2) are arranged on the sides of the bumpers (4) away from the base (1), and reinforcing ribs (6) are evenly arranged on the outer wall of the bottom of the cavity tubes (2); An installation seat (7) is arranged on the top of the base (1), a limit sliding groove (9) is formed in the installation seat (7), a connecting slider (10) is slidably connected inside the limit sliding groove (9), a connecting plate (11) is arranged on the top of the connecting slider (10), a receiving plate (13) is arranged at one end of the connecting plate (11), and a buffer assembly is arranged inside the installation seat (7) for relieving the impact force received by the receiving plate (13).

2. The upper frame of a numerically controlled grinding machine with bending resistance according to claim 1, characterized in that: Partition plates (5) are evenly arranged inside the cavity tubes (2), and the partition plates (5) are in a cross shape as a whole, which is used to enhance the longitudinal bending stiffness of the cavity tubes (2).

3. The upper frame of the CNC grinding machine with bending resistance according to claim 2, characterized in that: The cross section of the bumper (4) is in a cross shape, which is used to improve the connection stability between the cavity tube (2) and the base (1).

4. The upper frame of a numerically controlled grinding machine with bending resistance according to claim 3, characterized in that: The installation seat (7) is in a cross shape as a whole, and the number of the connecting sliders (10) is several, which is used to evenly transfer the force received by the receiving plate (13) to the base (1) and the cavity tubes (2).

5. The upper frame of a numerically controlled grinding machine with bending resistance according to claim 1, characterized in that: The buffer assembly includes a limit rod (8), the limit rod (8) is arranged in the installation groove (3), the connecting slider (10) is slidably installed on the outer surface of the limit rod (8), and telescopic springs (12) are arranged between the opposite surfaces of the connecting slider (10) and the installation groove (3), and the telescopic springs (12) are sleeved on the outer surface of the limit rod (8).

6. A CNC grinding machine upper frame with bending resistance according to claim 5, characterized in that: Connecting columns (15) are evenly arranged at the bottom of the receiving plate (13), sealing plates (16) are arranged at the bottom ends of the connecting columns (15), sealing cylinders (14) are evenly arranged on the top of the base (1), and the inner surface of the sealing cylinder (14) is attached to the outer surface of the sealing plate (16).

7. The upper frame of a numerically controlled grinding machine with bending resistance according to claim 6, characterized in that: Buffer pads (17) are evenly arranged at the bottom of the receiving plate (13), and the buffer pads (17) are aligned with the installation seat (7), which is used to prevent the receiving plate (13) from being directly impacted with the installation seat (7) and causing damage to it.

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