Cross beam structure of machining equipment

Abstract

The utility model discloses a cross beam structure of machining equipment, which comprises a cross beam shell, a plurality of groups of transverse ribs arranged in the cross beam shell, a plurality of groups of longitudinal ribs staggered with the transverse ribs and diagonal draw ribs arranged in the cross beam shell. At least one diagonal brace is symmetrically arranged by taking a plane which passes through the middle point of the length of the cross beam shell and is parallel to the width of the cross beam shell as a symmetric plane, mounting seats are respectively arranged at two ends of the bottom of the cross beam shell, arched ribs are connected between the mounting seats, and the diagonal braces, the transverse ribs and the longitudinal ribs are arranged in a staggered manner with the arched ribs. Through the inclined pull ribs and the arch ribs, deformation in the transverse axis and vertical axis directions of the cross beam is reduced, bending deformation is also reduced, the stability of the cross beam is obviously improved, and the precision stability of a machine tool is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of crossbeam structures, in particular to a crossbeam structure of a machining device. Background Art

[0002] The movement in the vertical direction of the plane formed by the crossbeam constitutes the X-axis of the machine tool, the movement of the spindle along the length direction of the crossbeam constitutes the Y-axis of the machine tool, and the movement of the spindle itself in the vertical direction constitutes the Z-axis of the machine tool; the crossbeam directly bears the entire weight of the spindle and the machining load, and the stiffness of the crossbeam determines the stiffness and machining accuracy of the entire machine tool; at the same time, the crossbeam is horizontally placed on the column and is in a state prone to deformation, so the structure of the crossbeam is the key to maintaining the accuracy of the machine tool. Most of the crossbeams with ultra-long spans in the prior art have insufficient rigidity, are prone to twisting and deformation, and even slight differences in materials will affect the machining accuracy. Content of the Utility Model

[0003] The purpose of the utility model is to provide a crossbeam structure of a machining device, which can reduce the degree of crossbeam deformation and ensure the machining accuracy of the machine tool.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A crossbeam structure of a machining device, including a crossbeam housing, wherein a plurality of transverse ribs are arranged in the crossbeam housing, and a plurality of longitudinal ribs are also arranged in the crossbeam housing and are arranged in an intersecting manner with the transverse ribs. It is characterized in that at least one diagonal tension rib is arranged in the crossbeam housing, and the diagonal tension rib is symmetrically arranged with respect to a plane passing through the midpoint of the length of the crossbeam housing and parallel to the width of the crossbeam housing. Mounting seats are respectively arranged at both ends of the bottom of the crossbeam housing, and an arched rib is connected between the mounting seats. The diagonal tension rib, the transverse rib and the longitudinal rib are all arranged in an intersecting manner with the arched rib.

[0006] Further, a plurality of holes are arranged at the top of the crossbeam housing.

[0007] Further, two diagonal tension ribs are symmetrically arranged with respect to the symmetry plane.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] Through the diagonal tension rib and the arched rib, the deformation in the horizontal and vertical directions of the crossbeam is reduced, and the bending deformation is also reduced.

[0010] A plurality of holes are arranged at the top of the crossbeam, which can not only reduce the weight but also will not reduce the mechanical properties of the crossbeam. During the machining process, the stability of the crossbeam is significantly improved, ensuring the stability of the machine tool accuracy. Description of the Drawings

[0011] Figure 1Schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 Schematic diagram of the cross-sectional structure of the present utility model;

[0013] Figure 3 Schematic diagram of the deformed state of the existing crossbeam structure;

[0014] Figure 4 Schematic diagram of the deformed state of the present utility model;

[0015] In the figure: 1. Crossbeam housing; 11. Mounting seat; 2. Longitudinal rib; 3. Transverse rib; 4. Diagonal tension rib; 5. Arch rib. Specific implementation mode

[0016] 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 of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0017] Embodiment 1:

[0018] Please refer to Figure 1-2 , the present utility model provides a technical solution: a crossbeam structure of a machining equipment, including a crossbeam housing 1, a plurality of groups of transverse ribs 3 are arranged in the crossbeam housing 1, a plurality of groups of longitudinal ribs 2 that are arranged in an intersecting manner with the transverse ribs 3 are also arranged in the crossbeam housing 1, diagonal tension ribs 4 are also arranged in the crossbeam housing 1, two diagonal tension ribs 4 are symmetrically arranged with respect to a plane passing through the midpoint of the length of the crossbeam housing 1 and parallel to the width of the crossbeam housing 1, mounting seats 11 are arranged at both ends of the bottom of the crossbeam housing 1, an arch rib 5 is connected between the mounting seats 11, and the diagonal tension ribs 4, transverse ribs 3 and longitudinal ribs 2 are all arranged in an intersecting manner with the arch rib 5.

[0019] When two diagonal tension ribs 4 are symmetrically arranged with respect to the symmetry plane, the deformation amplitude of the crossbeam is the smallest at this time, and the mechanical properties of the crossbeam are the best.

[0020] The force transmission of the arch rib 5 decreases layer by layer from top to bottom along the arch surface, which can make the overall force of the structure more uniform, reduce the local stress of the structure, and improve the stability of the structure.

[0021] Embodiment 2:

[0022] Refer to Figure 1 , a plurality of holes are arranged on the top of the crossbeam housing 1, and the plurality of holes can not only reduce the weight but also will not reduce the mechanical properties of the crossbeam.

[0023] Embodiment 3:

[0024] The material of the crossbeam housing 1 is gray cast iron. Gray cast iron has characteristics such as good casting performance, antifriction property, strong vibration damping property, good machinability, and small notch sensitivity, which is more suitable for constructing the crossbeam.

[0025] Example 4:

[0026] The material of the crossbeam housing 1 is ductile iron. Ductile iron has relatively high strength and toughness, can withstand large torques and pressures under heavy load conditions, and also has good vibration resistance and noise reduction functions; ductile main cast iron also has characteristics such as good wear resistance and good corrosion resistance, and can be used for a long time under heavy load conditions without damage or wear. Using ductile iron material makes the crossbeam structure more stable.

[0027] Reference Figure 3 , for the deformation analysis of the current crossbeam structure, the deformation of the crossbeam structure is analyzed by SolidWorks analysis software. When each bearing surface is 30000N, the middle is the maximum displacement, corresponding to the value 0.04435mm at the top right in the figure. The displacement at the relatively white parts on both sides of the maximum displacement corresponds to the value in the middle right in the figure, and the displacement is 0.02226mm.

[0028] Reference Figure 4 , for the deformation analysis of the crossbeam structure of a kind of machining equipment of the present invention, the deformation of the crossbeam structure is analyzed by SolidWorks analysis software. When each bearing surface is 100000N, the middle is the maximum displacement, corresponding to the value 0.03462mm at the top right in the figure. The displacement at the relatively white parts on both sides of the maximum displacement corresponds to the value in the middle right in the figure, and the displacement is 0.02077mm. By Figure 3 And Figure 4 Comparison, when Figure 4 the force on each bearing surface of the crossbeam structure is larger than that of Figure 3 , the deformation generated is less than that of Figure 3 , it is concluded that the crossbeam structure of a kind of machining equipment of the present invention is more stable.

[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A crossbeam structure of a mechanical processing equipment, characterized in that: The invention comprises a cross beam shell (1), wherein a plurality of groups of transverse ribs (3) are arranged in the cross beam shell (1), a plurality of groups of longitudinal ribs (2) arranged in an interlaced manner with the transverse ribs (3) are also arranged in the cross beam shell (1), and an inclined tie rib (4) is also arranged in the cross beam shell (1), at least one inclined tie rib (41) is symmetrically arranged with a plane passing through the midpoint of the length of the cross beam shell (1) and parallel to the width of the cross beam shell (1) as a symmetry plane, mounting seats (11) are respectively arranged at both ends of the bottom of the cross beam shell (1), an arched rib (5) is connected between the mounting seats (11), and the inclined tie rib (4), the transverse rib (3) and the longitudinal rib (2) are all arranged in an interlaced manner with the arched rib (5).

2. The crossbeam structure of a mechanical processing equipment according to claim 1, characterized in that: The top of the crossbeam shell (1) is provided with a plurality of holes.

3. The crossbeam structure of a mechanical processing equipment according to claim 1, characterized in that: Two inclined tie bars (41) are symmetrically arranged on the symmetry plane.

Images